Dry chemical detection device and method

Abstract

The invention discloses a dry chemical detection device and a dry chemical detection method. An imaging part (50) is used for shooting dry chemical test paper (90) located in a plurality of test paper areas (20); the imaging component (50) has a shooting view capable of covering at least two test paper areas (20), so that dry chemical test paper (90) in the test paper areas (20) in the shooting view can be shot at the same shooting moment, an image containing a plurality of pieces of dry chemical test paper (90) is obtained, and an image shot by the imaging component (50) at at least one shooting moment is obtained; carrying out dry chemical detection according to the image shot at the at least one shooting moment; the imaging component (50) has a shooting view capable of covering the plurality of dry chemical test paper (90), so that the imaging component (50) can shoot the plurality of dry chemical test paper (90) at the same shooting time, and dry chemical detection is carried out according to the test paper state of each dry chemical test paper (90); such as test paper position abnormity judgment, sample adding abnormity judgment, high-value sample judgment, detection result calculation and the like, so that images shot every time are fully utilized.

Description

A dry chemical detection device and method Technical Field

[0001] The present invention relates to the technical field of dry chemical detection, and in particular to a dry chemical detection device and a dry chemical detection method. Background Art

[0002] Dry chemistry testing is a routine screening test currently used by clinical laboratories in hospitals. For example, using a dry chemistry urine analyzer and dry chemistry multi-analysis urine test strips allows for rapid detection of common chemical and physical components in urine. Due to its advantages of speed, low cost, and ease of use, dry chemistry testing has become an important screening technique for routine tests such as urine and is widely used in clinical testing.

[0003] The dry chemical testing devices currently on the market generally have a conveying platform. The test paper is loaded with samples at one end of the conveying platform, and then the test paper is continuously conveyed to the other end. A camera is set at the end of the other end to photograph the test paper being delivered to the end (generally called the detection position). Every time a test paper is reached, the test paper is photographed once.

[0004] Current dry chemical testing devices still have a lot of room for improvement in terms of both test efficiency and accuracy of test results.

[0005] Summary of the Invention

[0006] In order to solve the above problems, the present invention provides a dry chemical detection device and a dry chemical detection method, which are described in detail below.

[0007] According to a first aspect, an embodiment provides a dry chemical detection device, comprising: a plurality of test paper areas, a carrying component, a sample adding component, an imaging component, and a processor;

[0008] The carrying component is used to place the dry chemical test paper located in the test paper area, and the dry chemical test paper has one or more color blocks, each color block corresponding to a test item;

[0009] The sample adding component is used to add the biological sample to be tested to the color block of the dry chemical test paper;

[0010] The imaging component is used to photograph the dry chemical test strips located in the plurality of test strip areas; the imaging component has a photographing field of view that can cover at least two of the test strip areas, so that the dry chemical test strips in the test strip areas within its photographing field of view can be photographed at the same photographing time to obtain an image containing the plurality of dry chemical test strips;

[0011] The processor is used to obtain the image captured by the imaging component at at least one capturing moment, and perform dry chemical detection based on the image captured at the at least one capturing moment.

[0012] In one embodiment, there is at least one target moment, so that the imaging component has at least two dry chemical test papers in the image captured at the target moment, and the at least two dry chemical test papers have any one of the following test paper states: waiting for sample addition state, sample addition end state, reaction process state and reaction end state.

[0013] In one embodiment, the at least two dry chemical test papers in the image captured by the imaging component at the target moment have different test paper states.

[0014] In one embodiment, the imaging component includes a global camera, the shooting field of the global camera can cover the at least two test paper areas; the global camera is used to shoot the dry chemical test paper located in the test paper area covered by its shooting field of view, so that an image captured at the target time has at least two dry chemical test papers in different test paper states; or,

[0015] The imaging component includes at least two local cameras, the shooting field of each local camera is any one of the at least two test paper areas, and the test paper areas corresponding to the shooting fields of different local cameras are different; the at least two local cameras are used to shoot the dry chemical test paper in the test paper area covered by their shooting fields, so that the multiple images taken at the target time have at least two dry chemical test papers in different test paper states.

[0016] In one embodiment, the processor performs dry chemical detection based on the image captured at the at least one moment, including at least two of the following:

[0017] In a case where the image captured at the target time contains a dry chemical test paper in the waiting state for sample loading, the processor determines image information of the dry chemical test paper based on the image captured at the target time, and performs an abnormality judgment on the dry chemical test paper based on the image information of the dry chemical test paper, wherein the abnormality includes at least one of a first type of abnormality and a second type of abnormality; the first type of abnormality is used to indicate that the dry chemical test paper is unusable, and the second type of abnormality is used to indicate that there is a deviation in the position of at least one color block in the dry chemical test paper;

[0018] In a case where the image captured at the target time contains a dry chemical test paper in the sample loading end state, the processor determines image information of the dry chemical test paper based on the image captured at the target time, and determines whether there is a sample loading abnormality on the dry chemical test paper based on the image information of the dry chemical test paper; if there is a sample loading abnormality, outputting a sample loading abnormality prompt message;

[0019] In a case where the image captured at the target moment contains the dry chemical test paper in the sample loading end state, the processor determines image information of the dry chemical test paper based on the image captured at the target moment, and determines a concentration level of the biological sample to be tested added to the dry chemical test paper based on the image information of the dry chemical test paper, and determines, based on the determined concentration level, a cleaning mode for the sample loading component after the biological sample to be tested is added to the dry chemical test paper from at least two cleaning modes of different intensities;

[0020] In a case where the image captured at the target moment contains a dry chemical test paper in the reaction process state, the processor determines image information of the dry chemical test paper based on the image captured at the target moment, and determines image information of the dry chemical test paper based on an image captured at another moment different from the target moment, and calculates a test result of a test item corresponding to at least one color block of the dry chemical test paper based on the image information of the dry chemical test paper at the target moment and the image information at the another moment; wherein the dry chemical test paper is in the reaction process state or the reaction end state in the image captured at the another moment;

[0021] In a case where the image captured at the target moment contains a dry chemical test paper in the reaction end state, the processor determines the image information of the dry chemical test paper based on the image captured at the target moment, and calculates the detection result of the test item corresponding to at least one color block of the dry chemical test paper based at least on the image information of the dry chemical test paper.

[0022] In one embodiment, the dry chemical test paper includes a first dry chemical test paper having one or more color blocks, each color block corresponding to a test item; the image captured at the at least one moment includes at least a first image and a second image captured by the imaging component of the first dry chemical test paper after the sample adding component adds the biological sample to be tested to the target color block of the first dry chemical test paper, wherein the first image and the second image are captured at different times;

[0023] The processor performs dry chemical detection according to the image captured at the at least one moment, including:

[0024] The color block information of the target color block of the first dry chemical test paper at different times is determined at least according to the first image and the second image, and the detection result of the test item corresponding to the target color block is calculated based on the color block information of the target color block at different times.

[0025] In one embodiment, the dry chemical test paper includes a first dry chemical test paper, the first dry chemical test paper having at least a first color block corresponding to a first test item and a second color block corresponding to a second test item, wherein the first test item corresponds to a preset first reaction time, and the second test item corresponds to a preset second reaction time that is different from the first reaction time;

[0026] The sample adding component is further used to add the same biological sample to be tested to the first color block and the second color block of the first dry chemical test paper at the same time under the control of the processor;

[0027] The image captured at the at least one moment includes at least a first image and a second image, the first image being an image of the first dry chemical test paper captured after the biological sample to be tested is added and the first reaction time has elapsed, and the second image being an image of the first dry chemical test paper captured after the biological sample to be tested is added and the second reaction time has elapsed;

[0028] The processor performs dry chemical detection according to the image captured at the at least one moment, including:

[0029] determining first color block information from the first image, and calculating a detection result of the first test item corresponding to the first color block based at least on the first color block information, and,

[0030] Second color block information is determined from the second image, and a detection result of the second test item corresponding to the second color block is calculated based at least on the second color block information.

[0031] According to the second aspect, an embodiment provides a dry chemical detection method, comprising:

[0032] The dry chemical test paper located in any one of the plurality of test paper areas is supported by a supporting component; wherein the dry chemical test paper has one or more color blocks, each color block corresponding to a test item;

[0033] adding the biological sample to be tested to the color block of the dry chemical test paper through a sample adding component;

[0034] photographing the dry chemical test strips located in the plurality of test strip areas using an imaging component; wherein the imaging component has a photographing field of view that can cover at least two of the test strip areas, so that the dry chemical test strips in the test strip areas within its photographing field of view can be photographed at the same time to obtain an image containing the plurality of dry chemical test strips;

[0035] An image captured by the imaging component at at least one capturing moment is acquired, and dry chemical detection is performed based on the image captured at the at least one capturing moment.

[0036] In one embodiment, the dry chemical test paper includes a first dry chemical test paper having one or more color blocks, each color block corresponding to a test item; the image captured at the at least one moment includes at least a first image and a second image captured by the imaging component of the first dry chemical test paper after the sample adding component adds the biological sample to be tested to the target color block of the first dry chemical test paper, wherein the first image and the second image are captured at different times;

[0037] The performing of dry chemical detection according to the image captured at the at least one moment includes:

[0038] The color block information of the target color block of the first dry chemical test paper at different times is determined at least according to the first image and the second image, and the detection result of the test item corresponding to the target color block is calculated based on the color block information of the target color block at different times.

[0039] In one embodiment, the dry chemical test paper includes a first dry chemical test paper, the first dry chemical test paper having at least a first color block corresponding to a first test item and a second color block corresponding to a second test item, wherein the first test item corresponds to a preset first reaction time, and the second test item corresponds to a preset second reaction time that is different from the first reaction time;

[0040] The adding of the biological sample to be tested to the color block of the dry chemical test paper by the sample adding component comprises: adding the same biological sample to be tested to the first color block and the second color block of the first dry chemical test paper simultaneously by the sample adding component;

[0041] The image captured at the at least one moment includes at least a first image and a second image, the first image being an image of the first dry chemical test paper captured after the biological sample to be tested is added and the first reaction time has elapsed, and the second image being an image of the first dry chemical test paper captured after the biological sample to be tested is added and the second reaction time has elapsed;

[0042] The performing of dry chemical detection according to the image captured at the at least one moment includes:

[0043] determining first color block information from the first image, and calculating a detection result of the first test item corresponding to the first color block based at least on the first color block information, and,

[0044] Second color block information is determined from the second image, and a detection result of the second test item corresponding to the second color block is calculated based at least on the second color block information.

[0045] According to the dry chemical detection device and dry chemical detection method of the above-mentioned embodiments, the imaging component has a shooting field of view that can cover multiple dry chemical test papers, so that the imaging component can capture multiple dry chemical test papers at the same shooting moment, and perform dry chemical detection according to the test paper status of each dry chemical test paper, such as abnormal judgment of test paper position, abnormal sample addition judgment, high-value sample judgment and calculation of test results, etc., so as to make full use of the image obtained by each shooting. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] FIG1(a) is a schematic diagram of a dry chemical test paper according to an embodiment; FIG1(b) is a schematic diagram of a dry chemical test paper according to an embodiment; FIG1(c) is a schematic diagram of a dry chemical test paper according to an embodiment;

[0047] FIG2( a ) is a schematic diagram of the structure of a dry chemical detection device according to an embodiment; FIG2( b ) is a schematic diagram of the structure of a dry chemical detection device according to an embodiment;

[0048] FIG3( a ) is a schematic diagram of the structure of a dry chemical detection device according to an embodiment; FIG3( b ) is a schematic diagram of the structure of a dry chemical detection device according to an embodiment;

[0049] FIG4( a ) is a schematic diagram of a sample loading component according to an embodiment; FIG4( b ) is a schematic diagram of a sample loading component according to an embodiment;

[0050] FIG5(a) is a schematic diagram of the structure of a dry chemical detection device according to an embodiment; FIG5(b) is a schematic diagram of the structure of a dry chemical detection device according to an embodiment;

[0051] FIG6 is a flow chart of a dry chemical detection method according to an embodiment;

[0052] FIG7 is a schematic flow chart of a dry chemical detection method according to an embodiment;

[0053] FIG8 is a flowchart of an embodiment of determining color block information of a target color block of a first dry chemical test paper at different times based on at least a first image and a second image, and calculating a test result of a test item corresponding to the target color block based on the color block information of the target color block at different times;

[0054] FIG9 is a schematic flow chart of a dry chemical detection method according to an embodiment;

[0055] FIG10( a ) is a schematic diagram of a process for determining a first image according to an embodiment; FIG10( b ) is a schematic diagram of a process for determining a first image according to an embodiment;

[0056] FIG11 is a schematic flow chart of a dry chemical detection method according to an embodiment;

[0057] FIG12( a ) is a schematic diagram of a process for determining a first image according to an embodiment; FIG12( b ) is a schematic diagram of a process for determining a first image according to an embodiment;

[0058] FIG13 is a flowchart of an embodiment of determining color block information of a target color block of a first dry chemical test paper at different times based on at least a first image and a second image, and calculating a test result of a test item corresponding to the target color block based on the color block information of the target color block at different times;

[0059] FIG14(a) is a flow chart of determining first color block information of a target color block from a first image according to an embodiment; FIG14(b) is a flow chart of determining first color block information of a target color block from a first image according to an embodiment; FIG14(c) is a flow chart of determining first color block information of a target color block from a first image according to an embodiment; FIG14(d) is a flow chart of determining first color block information of a target color block from a first image according to an embodiment;

[0060] FIG15 is a schematic diagram of a flow chart of calculating a test result of a test item corresponding to a target color block based on at least first color block information and second color block information according to an embodiment;

[0061] FIG16 is a flowchart of an embodiment of determining color block information of a target color block of a first dry chemical test paper at different times based on at least a first image and a second image, and calculating a test result of a test item corresponding to the target color block based on the color block information of the target color block at different times;

[0062] FIG17 is a schematic flow chart of a dry chemical detection method according to an embodiment.

[0063] FIG18 is a schematic structural diagram of a dry chemical detection device according to an embodiment;

[0064] FIG19 is a schematic structural diagram of a dry chemical detection device according to an embodiment;

[0065] FIG20 is a schematic diagram of a flow chart of a dry chemical detection method according to an embodiment;

[0066] FIG21 is a schematic flow chart of a dry chemical detection method according to an embodiment;

[0067] FIG22( a ) is a schematic diagram of a process for determining first color block information from a first image according to an embodiment; FIG22( b ) is a schematic diagram of a process for determining second color block information from a second image according to an embodiment;

[0068] FIG23 is a schematic diagram of a flow chart of a dry chemical detection method according to an embodiment;

[0069] FIG24( a ) is a schematic diagram of a process for determining first color block information from a first image according to an embodiment; FIG24( b ) is a schematic diagram of a process for determining second color block information from a second image according to an embodiment;

[0070] FIG25 is a schematic diagram of a flow chart of a dry chemical detection method according to an embodiment;

[0071] FIG26 is a schematic flow chart of a dry chemical detection method according to an embodiment;

[0072] FIG27 is a schematic flow chart of a dry chemical detection method according to an embodiment. DETAILED DESCRIPTION

[0073] The present invention will be further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions, and for those skilled in the art, it is not necessary to describe these related operations in detail. They will fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0074] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0075] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0076] Dry chemical testing is relative to wet chemical testing. Dry chemical testing refers to adding a sample to be tested (e.g., a sample in a flowing or liquid state) to a reagent strip specifically produced for different test items. The reagent strip is generally arranged with multiple color blocks, each corresponding to a test item. When the sample to be tested is added to the color block, it will undergo a specific chemical reaction with the reagent on the color block, causing the color of the color block to change. The reagent strip can generally be called a dry chemical test paper. Figure 1 (a) is a schematic diagram of a dry chemical test paper. The dry chemical test paper 90 includes multiple color blocks 99 (7 ​​color blocks 99 in the figure), for example, multiple color blocks 99 are distributed in sequence along the length direction (or axial direction) of the dry chemical test paper 90; each color block 99 includes a pre-set reagent, so that each color block 99 can indicate the test result of a test item after reacting with the sample to be tested. In some embodiments, the types of test items include but are not limited to test items such as red blood cell count and white blood cell count. In addition, for any dry chemical test paper, the position of each color block 99 in the dry chemical test paper is determined after it is produced.

[0077] There are many factors that affect the inaccuracy of dry chemical test results, but what is troubling is that when all conditions are normal, the test results of some color blocks of dry chemical test paper may still be inaccurate. In response to this phenomenon, the applicant found that dry chemical test strips generally have multiple color blocks, each color block corresponding to a test item. In actual situations, the optimal reaction time of each color block may be inconsistent. For example, taking the dry chemical test strips that can include more than ten test items such as white blood cells, urobilinogen, protein, glucose, etc., there are differences in dry chemical test strips from different manufacturers, and the optimal reaction time of each item on the strips of some manufacturers is inconsistent. For example, the optimal reaction time of the color blocks of the same test item on dry chemical test strips from different manufacturers is inconsistent. For another example, the optimal reaction time of the color blocks of different test items on dry chemical test strips from different manufacturers is inconsistent. For another example, a specific dry chemical test strip from the same manufacturer has color blocks with different optimal reaction times. A specific example is that the optimal time for the white blood cell item in some dry chemical test strips is 120s, while the optimal reaction time for other items is 60s.

[0078] In one solution, after the dry chemical detection device adds samples to the dry chemical test paper in the same sample addition area, the dry chemical test paper will continue to be transported in a certain direction, and then all test items on the dry chemical test paper will be tested simultaneously at a fixed detection time (or detection area). This will result in the test items corresponding to some color blocks on the dry chemical test paper not being tested within their optimal reaction time, which often leads to inaccurate test results.

[0079] Taking the above problems into consideration, in some embodiments of the present application, reaction times are preset for color blocks so that color blocks with different optimal reaction times can be distinguished. For example, a first color block corresponding to a first test item and a second color block corresponding to a second test item, for these two color blocks, the first color block is preset with a first reaction time, and the second color block is preset with a second reaction time different from the first reaction time; the color block information of the first color block that has undergone the first reaction time after being added to the biological sample to be tested is obtained to obtain the detection result of the first test item, and the color block information of the second color block that has undergone the second reaction time after being added to the biological sample to be tested is obtained to obtain the detection result of the second test item.

[0080] Taking the above problems into consideration, in some embodiments of the present application, for any color block on the dry chemical test paper, images of the color block at at least two different times are obtained, thereby extracting the color block information of the color block at at least two different times, and calculating the test results of the test items corresponding to the color block based on the color block information of the color block at at least two different times. It should be noted that in this article, the test results of the test items corresponding to the color block are calculated by using the color block information of the color block at at least two different times, which means that the color block information at at least two different times actually and directly participates in the calculation of the test results. The essence is that the color block information at at least two different times is used to jointly characterize the reaction process of the color block. They are intrinsically related to each other, and they are combined to characterize the color information of the color block that changes with time during the reaction process. Through the color information of the color block that changes with time during the reaction process, it is possible to obtain the standard concentration of the sample to be tested and the reaction process after it is added to the color block. The color information presented that changes with time is similar to or identical to it, thereby obtaining the detection result of the test item corresponding to the color block; in this article, the detection result of the test item corresponding to the color block is calculated by the color block information of at least two different moments of the color block, which does not mean selecting the color block information of one moment from the color block information of at least two moments, and finally calculating the detection result of the test item corresponding to the color block by the color block information of this moment - this is essentially still the same as the existing technology, calculating the detection result of the test item corresponding to the color block by the color information of one moment in the reaction process (for example, the color information at the moment when the reaction is basically completed).

[0081] In order to improve the testing efficiency of the dry chemical device, the imaging component is improved in some embodiments of the present application so that the imaging component has a shooting field of view that can cover multiple dry chemical test papers. In this way, the imaging component can capture multiple dry chemical test papers at the same shooting moment, and perform dry chemical testing according to the test paper status of each dry chemical test paper (such as waiting for sample addition status, sample addition end status, reaction process status or reaction end status, etc.), such as abnormal judgment of test paper position, sample addition judgment abnormality, high-value sample judgment and calculation of test results, etc., so as to make full use of the image obtained from each shooting.

[0082] The dry chemical detection device is first described below.

[0083] Please refer to Figure 2(a), the dry chemical detection device in some embodiments includes a carrying component 10, a sample adding component 30, an imaging component 50 and a processor 70; please refer to Figure 2(b), the dry chemical detection device in some embodiments also includes a test paper area 20, which is described in detail below.

[0084] The supporting component 10 is used to place dry chemical test paper 90. For the convenience of description, the concept of test paper area 20 can be introduced, and the supporting component 10 is used to place the dry chemical test paper 90 located in the test paper area 20. One test paper area 20 can hold one dry chemical test paper 90. In some embodiments, there can be one or more test paper areas 20. In other words, the dry chemical detection device can include one or more test paper areas 20; in some embodiments, the dry chemical detection device includes multiple test paper areas 20. The figure shows a schematic diagram of a dry chemical detection device including 10 test paper areas 20.

[0085] In some embodiments, please refer to Figure 3(a), the carrying component 10 includes a conveying component 11 and a power mechanism 13. The conveying component 11 is driven by the power mechanism 13 to convey the dry chemical test paper 90 thereon along a preset direction, so as to drive the dry chemical test paper 90 to be conveyed along the preset direction among the multiple test paper areas 20 included in the dry chemical detection device, for example, from one test paper area 20 to the next test paper area 20 in the preset direction; more specifically, the dry chemical test paper 90 can be transported in this way: the dry chemical test paper 90 is transported to a test paper area 20, stays for a period of time, and then is transported from the current test paper area 20 to the next test paper area 20 along the preset direction.

[0086] In some embodiments, the conveying component 11 is driven by the power mechanism 13 to periodically convey the dry chemical test paper 90 thereon along a preset direction with a second preset period, so as to drive the dry chemical test paper 90 to be conveyed along the preset direction in the multiple test paper areas 20 included in the dry chemical detection device; more specifically, the dry chemical test paper 90 can be transported in this way: the dry chemical test paper 90 is conveyed to a test paper area 20 and stays for a period of time, and then is conveyed from the current test paper area 20 to the next test paper area 20 along the preset direction, wherein the time interval from the dry chemical test paper 90 entering one test paper area 20 to entering the next test paper area 20 is the above-mentioned second preset period, or the time interval from the dry chemical test paper 90 leaving one test paper area 20 to leaving the next test paper area 20 is the above-mentioned second preset period.

[0087] In some embodiments, the dry chemical test paper 90 placed on the carrier 10 is relatively stationary with respect to the imaging component 50. Generally, the imaging component 50 does not move. Therefore, if the dry chemical test paper 90 placed on the carrier 10 is relatively stationary with respect to the imaging component 50, the dry chemical test paper 90 placed on the carrier 10 is also stationary and does not move. That is, when the dry chemical test paper 90 is located in a test paper area 20, the dry chemical test paper 90 will remain in this test paper area 20.

[0088] For the convenience of discussion in this article, the situation where the supporting component 10 includes the transmission component 11 and the power mechanism 13 is called a dynamic scene, and the situation where the dry chemical test paper 90 placed on the supporting component 10 and the imaging component 50 are relatively stationary is called a static scene.

[0089] In some embodiments, please refer to Figure 3(b), the dry chemical detection device also includes a driving component 10a, which is used to drive the carrying component 10 so that the dry chemical test paper 90 placed on the carrying component 10 is transported along a preset direction in multiple test paper areas 20; it can be understood that the driving component 10a and the carrying component 10 are two components divided according to the functions they implement, which implement the dynamic scene referred to in this article. Therefore, the driving component 10a and the carrying component 10 can also be divided into the same component. Under this division, the carrying component 10 includes the above-mentioned conveying component 11 and the power mechanism 13. Therefore, the conveying component 11 is driven by the power mechanism 13 to convey the dry chemical test paper 90 thereon along a preset direction to drive the dry chemical test paper 90 to be conveyed along the preset direction in the multiple test paper areas 20 included in the dry chemical detection device. Various descriptions are also applicable to describing the driving component 10a driving the carrying component 10 so that the dry chemical test paper 90 carried by the carrying component 10 is conveyed in multiple test paper areas 20.

[0090] The sample adding component 30 is used to add the biological sample to be tested to the color block 99 on the dry chemical test strip 90. For example, the sample adding component 30 is used to add the biological sample to be tested to the color block 99 on the dry chemical test strip 90 located on the carrier 10. In other words, the sample adding component 30 is used to add the biological sample to be tested to the color block 99 on the dry chemical test strip 90 located in the test strip area 20. The sample adding component 30 can perform the sample adding action—i.e., the action of adding the biological sample to the color block 99 on the dry chemical test strip 90—under the control of the processor 70.

[0091] In some embodiments, the biological sample to be tested includes a urine sample, a body fluid sample, and / or a vaginal secretion.

[0092] There are many ways to implement the sample adding component 30, and several of them are listed below.

[0093] In some embodiments, referring to FIG. 4( a ) or FIG. 4 ( b ), the sample loading component 30 may include one or more sample loading mechanisms 31 .

[0094] In some embodiments, the sample loading mechanism 31 can only add the biological sample to be tested to one color block 99 at a time - this type of sample loading mechanism 31 may be referred to as a first type of sample loading mechanism 31; for example, please refer to Figure 4(a), the sample loading mechanism 31 only includes one sample needle 31a; in this way, the sample loading mechanism 31 can only add the biological sample to be tested to one color block 99 at a time; when the sample loading mechanism 31 adds the biological sample to be tested to the dry chemical test paper 90 located in the test paper area 20 or the supporting component 10, the sample loading component 30 can drive the sample loading mechanism 31 to move to add the biological sample to be tested to each color block 99 in the dry chemical test paper 90, for example, the sample loading mechanism 31 moves along the axial direction of the dry chemical test paper 90 to complete the addition of the biological sample to be tested to each color block 99 of the dry chemical test paper 90. In such an example, it can also be considered that the sample loading mechanism 31 is moving within the same test paper area 20.

[0095] In some embodiments, the sample adding mechanism 31 can add the biological sample to be tested to multiple color blocks 99 at one time - it is not a problem to refer to this type of sample adding mechanism 31 as a second type of sample adding mechanism 31; for example, referring to FIG4(b), the sample adding mechanism 31 may include multiple sample needles 31a (shown in the figure is a schematic diagram including three sample needles 31a), so that the sample adding mechanism 31 can add the biological sample to be tested to multiple color blocks 99 at one time; it can be understood that if the number of sample needles 31a of the sample adding mechanism 31 is the same as the number of color blocks 99 on the dry chemical test paper 90, then the sample adding mechanism 31 can complete the addition of the biological sample to be tested to each color block 99 on the dry chemical test paper 90 at one time. If the number of sample needles 31a of the sample adding mechanism 31 is the same as the number of color blocks 99 on the dry chemical test paper 90, then the sample adding mechanism 31 can complete the addition of the biological sample to be tested to each color block 99 on the dry chemical test paper 90 at one time. If the amount is less than the number of color blocks 99 on the dry chemical test paper 90, although the sample adding mechanism 31 can complete the addition of the biological sample to be tested to multiple color blocks 99 on the dry chemical test paper 90 in one time, it still needs at least two times to complete the addition of the biological sample to be tested to each color block 99 on the dry chemical test paper 90. In this case, the sample adding component 30 can drive the sample adding mechanism 31 to move to add the biological sample to be tested to each color block 99 in the dry chemical test paper 90. For example, the sample adding mechanism 31 moves along the axial direction of the dry chemical test paper 90 to complete the addition of the biological sample to be tested to each color block 99 of the dry chemical test paper 90. In such an example, it can also be considered that the sample adding mechanism 31 is moving within the same test paper area 20.

[0096] In some embodiments, the sample loading component 30 may include only one sample loading mechanism 31 , and the sample loading mechanism 31 may be a first type of sample loading mechanism 31 or a second type of sample loading mechanism 31 .

[0097] In some embodiments, the sample loading component 30 may include multiple sample loading mechanisms 31 (for example, at least two), and these multiple sample loading mechanisms 31 may all be first-type sample loading mechanisms 31, or may all be second-type sample loading mechanisms 31; or even, these multiple sample loading mechanisms 31 may partially be first-type sample loading mechanisms 31, and partially be second-type sample loading mechanisms 31.

[0098] In some embodiments, the sample adding component 30 can only add the biological sample to be tested to the dry chemical test paper 90 located in a specific test paper area 20 .

[0099] In some embodiments, the sample adding component 30 is capable of adding the biological sample to be tested to the dry chemical test paper 90 located in at least two test paper areas 20; for example, the sample adding component 30 can move between at least two test paper areas 20 by driving the sample adding mechanism 31, thereby completing the addition of the biological sample to be tested to the dry chemical test paper 90 located in different test paper areas 20 through one sample adding mechanism 31; for another example, the sample adding component 30 can have multiple sample adding mechanisms 31, each sample adding mechanism 31 corresponding to a test paper area 20, and the sample adding mechanism 31 is used to add the biological sample to be tested to the dry chemical test paper 90 located in its corresponding test paper 20.

[0100] In some specific embodiments, the sample loading component 30 includes two independent sample loading mechanisms 31, such as a first sample loading mechanism 31 and a second sample loading mechanism 31. The first sample loading mechanism 31 can be either a first type sample loading mechanism 31 or a second type sample loading mechanism 31, and the second sample loading mechanism 31 can be either a first type sample loading mechanism 31 or a second type sample loading mechanism 31. In some embodiments, the first sample loading mechanism 31 and the second sample loading mechanism 31 can add the biological sample to be tested to different color blocks 99 in the same dry chemical test strip 90 at different loading times. In some embodiments, the first sample loading mechanism 31 and the second sample loading mechanism 31 can add the biological sample to be tested to different color blocks 99 in the same dry chemical test strip 90 in different test strip regions 20. For example, the first sample loading mechanism 31 adds the biological sample to be tested to a certain color block 99 in the dry chemical test strip 90 in one test strip region 20, while the second sample loading mechanism 31 adds the same biological sample to be tested to another color block 99 in the dry chemical test strip 90 in another test strip region 20.

[0101] The imaging component 50 is used to capture images, for example, the imaging component is used to capture images of the dry chemical test strips located in the plurality of test strip areas 20. For example, the imaging component 50 captures images of some or all of the dry chemical test strips 90 located on the carrier 10, or captures images of the dry chemical test strips 90 located in all or some of the test strip areas 20.

[0102] In some embodiments, the imaging component 50 has a shooting field of view that can cover at least two test paper areas 20, so that the dry chemical test paper in the test paper area within its shooting field of view can be photographed at the same shooting moment to obtain an image containing multiple dry chemical test papers.

[0103] In some embodiments, the imaging component 50 periodically photographs the dry chemical test paper 90 at a first preset period, for example, once every T seconds. In some embodiments, the second preset period is an integer multiple of the first preset period, which can be 1 or more multiples. For example, if the second preset period is 10 seconds, the first preset period is also 10 seconds. For another example, if the second preset period is 20 or 30 seconds, the first preset period is 10 seconds.

[0104] In some embodiments, referring to FIG. 5( a ), the imaging component 50 includes a global camera 51. The field of view of the global camera 51 can cover at least two of the multiple test strip areas 20 included in the dry chemical testing device. The global camera 51 is used to capture the dry chemical test strips 90 located in the at least two test strip areas. In some embodiments, the field of view of the global camera 51 can cover all of the test strip areas 20 included in the dry chemical testing device.

[0105] It can be understood that in the scenario where the imaging component 50 includes a global camera 51, the imaging component 50 photographs the dry chemical test paper in the test paper area within its shooting field of view at the same shooting moment to obtain an image containing multiple dry chemical test papers, which means that the global camera 51 can photograph the dry chemical test paper in the test paper area within its shooting field of view at the same shooting moment to obtain such an image, which contains multiple dry chemical test papers.

[0106] In some embodiments, the global camera 51 periodically photographs the dry chemical test paper 90 located in the at least two test paper areas 20 mentioned above with a first preset period, for example, once every T seconds; in some embodiments, the second preset period is an integer multiple of the first preset period, and the integer multiple can be 1 or multiple times; for example, the second preset period is 10s, and the first preset period is also 10s, and for another example, the second preset period is 20 or 30s, and the first preset period is 10s.

[0107] In some embodiments, referring to FIG. 5( b ), the imaging component 50 includes multiple local cameras 53 , for example, at least two local cameras 53 . The field of view of each local camera 53 is one of the multiple test strip areas 20 included in the dry chemical testing device, and different local cameras 53 have different test strip areas 20 corresponding to their respective fields of view. Each local camera 53 is configured to capture the dry chemical test strip 90 in the test strip area 20 corresponding to its respective field of view. In some embodiments, the number of local cameras 53 is the same as the number of test strip areas 20 included in the dry chemical testing device, i.e., each test strip area 20 corresponds to one local camera 53 .

[0108] In some embodiments, each local camera 53 synchronously and periodically photographs the dry chemical test paper 90 in the test paper area 20 corresponding to its respective shooting field of view with a first preset period, for example, each local camera synchronously (or simultaneously) photographs once every T seconds; in some embodiments, the second preset period is an integer multiple of the first preset period, and the integer multiple can be 1 or multiple times; for example, the second preset period is 10s, and the first preset period is also 10s, and for another example, the second preset period is 20 or 30s, and the first preset period is 10s.

[0109] It can be understood that in a scenario where the imaging component 50 includes multiple local cameras 53, the imaging component 50 captures the dry chemical test strips within the test strip area within its field of view at the same time, and obtains an image containing multiple dry chemical test strips. This refers to a set of images obtained by the multiple local cameras 53 capturing the dry chemical test strips within the test strip area within their field of view at the same time, and this set of images contains multiple dry chemical test strips. For example, let's assume that there are J local cameras 53, where J is an integer greater than or equal to 2, and these J local cameras 53 capture a set of images at the same time. This set of images includes J images, each image captured by a local camera 53. Multiple dry chemical test strips are captured in this set of images, that is, this set of images contains multiple dry chemical test strips.

[0110] The processor 70 can obtain the image captured by the imaging component 50 and determine the color information of the color block 99 on the dry chemical test paper 90 from the image, thereby obtaining the test result of the test item corresponding to the color block 99. The color block information herein refers to color-related information, such as RGB values.

[0111] In some embodiments, the processor 70 obtains the image captured by the imaging component 50 at at least one shooting moment, and performs dry chemical testing based on the image captured at the aforementioned at least one shooting moment. The dry chemical testing here refers to using the captured image to perform a series of calculations and judgments, including calculating the test results, such as abnormal judgment of the test paper position, abnormal sample addition judgment, high-value sample judgment and calculation of test results, etc.

[0112] The above is some description of the dry chemical test paper device. Some embodiments of the present application also disclose a dry chemical detection method, which can be applied to the dry chemical test paper device of the present application. Referring to Figure 6, the dry chemical detection method of some embodiments includes the following steps:

[0113] Step 2000: The dry chemical test paper 90 located in any one of the multiple test paper areas 20 is carried by the carrying component 10; wherein the dry chemical test paper 90 has one or more color blocks 99, and each color block 99 corresponds to a test item.

[0114] Step 2100 : Add the biological sample to be tested to the color block 99 of the dry chemical test paper 90 through the sample adding component 30 .

[0115] Step 2200: Photograph the dry chemical test paper 90 located in a plurality of test paper areas 20 through the imaging component 50; wherein the imaging component 50 has a photographing field of view capable of covering at least two test paper areas 20, so as to be able to photograph the dry chemical test paper 90 in the test paper area 20 within its photographing field of view at the same photographing moment, and obtain an image containing a plurality of dry chemical test papers 90.

[0116] It can be understood that in a scenario where the imaging component 50 includes multiple local cameras 53, the imaging component 50 captures the dry chemical test strips within the test strip area within its field of view at the same time, and obtains an image containing multiple dry chemical test strips. This refers to a set of images obtained by the multiple local cameras 53 capturing the dry chemical test strips within the test strip area within their field of view at the same time, and this set of images contains multiple dry chemical test strips. For example, let's assume that there are J local cameras 53, where J is an integer greater than or equal to 2, and these J local cameras 53 capture a set of images at the same time. This set of images includes J images, each image captured by a local camera 53. Multiple dry chemical test strips are captured in this set of images, that is, this set of images contains multiple dry chemical test strips.

[0117] Step 2300: Acquire images captured by the imaging component 50 at at least one capture time, and perform dry chemical testing based on the images captured at the at least one capture time. Dry chemical testing here refers to using the captured images to perform a series of calculations and judgments, including calculating test results. These can include determining abnormalities in the test strip position, determining sample addition abnormalities, determining high-value samples, and calculating test results.

[0118] The dry chemical test paper device and the dry chemical detection method are further described below.

[0119] First type of embodiment

[0120] In some embodiments, the dry chemical test strip 90 includes a first dry chemical test strip 91, or at least one type of dry chemical test strip 90 is the first dry chemical test strip 91. The first dry chemical test strip 91 has one or more color blocks 99, each corresponding to a test item. The sample loading component 30 is used to add the biological sample to be tested to the color blocks 99 of the first dry chemical test strip 91. For the sake of convenience, one of the color blocks 99 will be referred to as the target color block 99. The imaging component 50 is used to capture the first dry chemical test strip 91 after the sample loading component 30 has added the biological sample to the target color block 99 of the first dry chemical test strip 91, thereby obtaining multiple images. These multiple images include at least a first image and a second image, and the first and second images are captured at different times. The processor 70 captures the first and second images and, based on at least the first and second images, determines color block information of the target color block 99 of the first dry chemical test strip 91 at different times. Based on the color block information of the target color block 99 at different times, the processor 70 calculates the test result of the test item corresponding to the target color block 99.

[0121] Or, in other words, in the example where the processor 70 obtains an image captured by the imaging component 50 at at least one capturing moment and performs dry chemical testing based on the image captured at the aforementioned at least one capturing moment, the image captured at at least one moment may at least include a first image and a second image obtained by the imaging component 50 capturing the first dry chemical test paper after the sample adding component 30 adds the biological sample to be tested to the target color block 99 of the first dry chemical test paper 91, wherein the capturing moments of the first image and the second image are different.

[0122] As mentioned above, the “calculation” involved in “calculating the test results of the test items corresponding to the target color block 99 based on the color block information of the target color block 99 at different times”, or “calculating the test results of the test items corresponding to the target color block 99 based on the color block information of the target color block 99 at different times” essentially means that the color block information of the target color block 99 at at least two different times actually and directly participates in the calculation of the test results. The color block information of the target color block 99 at at least two different times is used to jointly characterize the reaction process of the target color block 99. They are intrinsically related to each other, and they are combined to characterize the reaction process of the target color block 99 at any time. The color information of the target color block 99 that changes with time is used to obtain the color information of the standard concentration of the biological sample to be tested that is similar or identical to the color information of the target color block 99 during the reaction process. The color information of the target color block 99 that changes with time is used to obtain the color information of the target color block 99 that changes with time during the reaction process. The detection result of the test item corresponding to the target color block 99 is obtained by the color information of the target color block 99 at at least two different moments. It does not mean that the color information of one moment is selected from the color information of at least two moments, and the detection result of the test item corresponding to the target color block 99 is finally calculated by the color information of the target color block 99 at this moment. This point will be further explained below.

[0123] In the above scheme, there are two key points: one is how to determine the first image and the second image, which is essentially how to select at least two representative images from multiple images of the target color block 99 at different times; the other is how to determine the color block information of the target color block 99 from the selected images.

[0124] One solution is to preset two test paper areas 20 for the first dry chemical test paper 91. In particular, in a dynamic scene, when the first dry chemical test paper 91 reaches the two test paper areas 20 in sequence, the imaging component 50 photographs the first dry chemical test paper 91. Essentially, the two test paper areas 20 correspond to two photographing moments. Therefore, two photographing moments can be preset for the first dry chemical test paper 91 in advance, so that the first dry chemical test paper is preset with two test paper areas 20. This allows the position of the first dry chemical test paper 91 in the images taken at these two photographing moments to be predetermined. Since the position of the target color block 99 on the first dry chemical test paper 91 is fixed, the position of the target color block 99 in the images taken at these two photographing moments can also be predetermined. Generally, one of the two preset photographing moments can be selected as the reaction end moment or the basic reaction end moment of the target color block 99, while the other photographing moment is taken before the reaction end moment or the basic reaction end moment of the target color block 99 and after the addition of the biological sample to be tested. Therefore, the two test paper regions 20 corresponding to the first dry chemical test paper 91, or more precisely, the target color block 99, are actually mostly determined by the type of the target color block 99. Generally, the type of the target color block 99 can be derived from the test paper type of the first dry chemical test paper 91. Furthermore, for any dry chemical test paper 90, two corresponding regions can be preset for any color block 99 on it, and color block information can be extracted from the two images based on these two regions.

[0125] Therefore, in some embodiments, the processor 70 determines the color block information of the target color block 99 of the first dry chemical test paper 91 at different times based on at least the first image and the second image, including: using the image information located in the preset first area in the first image as the first color block information of the target color block 99, and the preset first area corresponds to the target color block 99 of the first dry chemical test paper 91; using the image information located in the preset second area in the second image as the second color block information of the target color block 99, and the preset second area corresponds to the target color block 99 of the first dry chemical test paper 91.

[0126] In some embodiments, the processor 70 can obtain the preset areas corresponding to the various color blocks 99 on the dry chemical test paper 90 by using the test paper type of the dry chemical test paper 90. The test paper type may refer to the number of color blocks and / or the type of color blocks (i.e., the test items corresponding to the color blocks) of the dry chemical test paper 90. It is understandable that the processor 70 can obtain the test paper type of the dry chemical test paper 90 by scanning the dry chemical test paper 90 using a scanner, etc., or can obtain the test paper type of the dry chemical test paper 90 by the operator inputting the test paper type of the dry chemical test paper 90 through an input tool. Therefore, in some embodiments, before the processor 70 determines the color block information of the target color block 99 of the first dry chemical test paper 91 at different times based on at least the first image and the second image, it also includes: obtaining the test paper type of the first dry chemical test paper 91; and obtaining the above-mentioned preset first area and the above-mentioned preset second area based on the test paper type of the first dry chemical test paper 91.

[0127] In some embodiments, the dry chemical detection device may further photograph the dry chemical test strip 90 before adding the biological sample to be tested to determine whether the dry chemical test strip 90 has any abnormalities. Therefore, in some embodiments, the imaging component 50 is further configured to photograph the first dry chemical test strip 91 to obtain a third image before the sample adding component 30 adds the biological sample to the target color block 99 of the first dry chemical test strip 91. The processor 70 is further configured to determine an abnormality of the first dry chemical test strip 91 based on the third image. The abnormality includes at least one of a first and a second type of abnormality. The first type of abnormality indicates that the first dry chemical test strip 91 is unusable, and the second type of abnormality indicates that there is a deviation in the position of at least one color block 99 in the first dry chemical test strip 91.

[0128] In some embodiments, the first type of abnormality may specifically be that at least one color block in the first dry chemical test paper 91 is unusable, including but not limited to the original color of the color block changing due to reasons such as the color block being bent, falling off, or being affected by moisture, all of which may cause abnormalities in subsequent test results.

[0129] In some embodiments, the second type of abnormality may specifically be that the position of the first dry chemical test paper 91 in its width direction is not as expected, the first dry chemical test paper 91 is incorrectly placed, and / or there is a deviation in the position of at least one color block in the first dry chemical test paper 91 in its length direction. The position of the first dry chemical test paper 91 in its width direction is not as expected, which means that the first dry chemical test paper 91 is offset in the width direction in the position of the supporting component 10 or the test paper area 20, etc., which will result in the biological sample to be tested not dripping onto the color block 99 or dripping onto the edge of the color block 99 when adding the biological sample to be tested to the first dry chemical test paper 91. The incorrect placement of the first dry chemical test paper 91 includes but is not limited to being inverted head to tail, etc.; the placement of dry chemical test paper in the length direction is divided into "head to tail", and if the operator accidentally inverts the head to tail when placing the dry chemical test paper, the subsequent test results will naturally be abnormal. There is a deviation in the position of at least one color block in the first dry chemical test paper 91 in the length direction of the first dry chemical test paper 91. The reason for this abnormality may be a defect in the manufacture of the test paper, such as the spacing between adjacent color blocks is too large, or it may be due to the displacement of the first dry chemical test paper 91 along its own length direction on the supporting component 10 or in the test paper area 20.

[0130] As described above, there are two key points in some embodiments of the present application: first, how to determine the first image and the second image. This is essentially how to select at least two representative images from multiple images of target color block 99 at different times; and second, how to determine the color block information of target color block 99 from the selected images. These two points are described in more detail below.

[0131] In some embodiments, the first image is determined by comparing color feature differences between the target color block 99 in the first dry chemical test paper 91 in images captured at different times, such that the color feature difference between the target color block in the first image and the target color block in at least one image captured previously is less than a set threshold. The color feature difference between the target color block 99 at two different times can be, for example, a difference in grayscale values ​​represented by the color block information. The first image thus selected is typically an image of the target color block 99 captured at the end of a reaction or at the point where a substantial reaction has ended.

[0132] Therefore, in some embodiments, the processor 70 determines the color block information of the target color block 99 of the first dry chemical test paper 91 at different times based on at least the first image and the second image, and calculates the detection result of the test item corresponding to the target color block 99 based on the color block information of the target color block 99 at different times, including: calculating the color feature difference between the color block information of the target color block 99 in the first dry chemical test paper 91 in the images at different shooting times to determine the first image, so that the color feature difference between the color block information of the target color block 99 in the first image and the color block information of the target color block 99 in at least one image shot before it is less than a set threshold; determining the second image, the shooting time of the second image is before the shooting time of the first image; determining the first color block information of the target color block 99 from the first image, and determining the second color block information of the target color block 99 from the second image, and calculating the detection result of the test item corresponding to the target color block 99 based on at least the first color block information and the second color block information.

[0133] The following describes how to determine the first image by using the color feature differences between the color block information of the target color block 99 in the first dry chemical test paper 91 in images at different shooting moments, and further explains how to determine the color block information of the target color block 99 in the image in conjunction with specific scenarios.

[0134] (1.1) Global Camera + Dynamic Scene

[0135] In some embodiments, the imaging component 50 includes a global camera 51, and the supporting component 10 includes a conveying assembly 11 and a power mechanism 13; in such an embodiment, the first dry chemical test paper 91 will be conveyed among multiple test paper areas 20, for example, from one test paper area 20 to the next test paper area 20 along a preset direction. When the first dry chemical test paper 91 is conveyed among the at least two test paper areas 20 covered by the shooting field of view of the global camera 51, it can be photographed by the global camera 51 to obtain a first image and a second image. For example, one of the at least two test paper areas 20 is photographed by the global camera 51 to obtain a first image, and another of the at least two test paper areas 20 is photographed by the global camera 51 to obtain a second image.

[0136] In some embodiments, the processor 70 determines the first image including: for an image at any shooting moment i, determining the position of the first dry chemical test paper 91 in the image at any shooting moment i according to the second preset period, the any shooting moment i, and the test paper area 20 where the target color block 99 of the first dry chemical test paper 91 is located when the biological sample to be tested is added, and obtaining the color block information of the target color block 99 in the first dry chemical test paper 91 from the image at any shooting moment i according to the position of the first dry chemical test paper 91 in the image at any shooting moment i and the position of the target color block 99 on the first dry chemical test paper 91. In this way, the color block information of the target color block 99 in the images at each shooting moment can be obtained, so that the color feature difference between the color block information of the target color block 99 in the first dry chemical test paper 91 in the images at different shooting moments can be calculated to determine the first image.

[0137] The above scheme provides a method for determining the color block information of the target color block 99 from an image at any shooting moment i, and is therefore also applicable to determining the color block information of the target color block 99 from the first image (referred to as the first color block information), and determining the color block information of the target color block 99 from the second image (referred to as the second color block information).

[0138] For example, the processor 70 determines the first color block information of the target color block 99 from the first image, including: determining the position of the first dry chemical test strip 91 in the first image based on the second preset period, the time when the first image was captured, and the test strip area 20 where the first dry chemical test strip 91 was located when the biological sample to be tested was added; and determining the first color block information of the target color block 99 from the first image based on the position of the first dry chemical test strip 91 in the first image and the position of the target color block 99 on the first dry chemical test strip 91. Similarly, the processor 70 determines the second color block information of the target color block 99 from the second image, including: determining the position of the first dry chemical test strip 91 in the second image based on the second preset period, the time when the second image was captured, and the test strip area 20 where the first dry chemical test strip 91 was located when the biological sample to be tested was added; and determining the second color block information of the target color block 99 from the second image based on the position of the first dry chemical test strip 91 in the second image and the position of the target color block 99 on the first dry chemical test strip 91.

[0139] (1.2) Global Camera + Static Scene

[0140] In some embodiments, the imaging component 50 includes a global camera 51, and the dry chemical test paper 90 placed on the supporting component 10 is stationary relative to the imaging component 50; therefore, in some embodiments, the first dry chemical test paper 91 is also stationary and non-moving. That is, when the dry chemical test paper 90 is located in a test paper area 20, the dry chemical test paper 90 will remain in this test paper area 20. Therefore, when the first dry chemical test paper 91 is in any of the at least two test paper areas covered by the shooting field of view of the global camera 51, it can be photographed to obtain a first image and a second image. For example, the first image is captured at one time and the second image is captured at another time. It can be understood that because the first dry chemical test paper 91 is stationary and non-moving on the supporting component 10, the position of the first dry chemical test paper 91 in the first image and the second image is also the same and unchanged.

[0141] In some embodiments, the processor 70 determines the first image including: obtaining the test paper area 20 where the first dry chemical test paper 91 is located; for the image at any shooting time i, determining the position of the first dry chemical test paper 91 in the image at any shooting time i according to the test paper area 20 where the first dry chemical test paper 91 is located, and obtaining the color block information of the target color block 99 in the first dry chemical test paper 91 from the image at any shooting time i according to the position of the first dry chemical test paper 91 in the image at any shooting time i and the position of the target color block 99 on the first dry chemical test paper 91. In this way, the color block information of the target color block 99 in the images at each shooting time can be obtained, so that the color feature difference between the color block information of the target color block 99 in the first dry chemical test paper 91 in the images at different shooting times can be calculated to determine the first image.

[0142] The above scheme provides a method for determining the color block information of the target color block 99 from an image at any shooting moment i, and is therefore also applicable to determining the color block information of the target color block 99 from the first image (referred to as the first color block information), and determining the color block information of the target color block 99 from the second image (referred to as the second color block information).

[0143] For example, the processor 70 determines the first color block information of the target color block 99 from the first image, including: determining the first color block information of the target color block 99 from the first image based on the test paper area 20 where the first dry chemical test paper 91 is located and the position of the target color block 99 on the first dry chemical test paper 91. Similarly, the processor 70 determines the second color block information of the target color block 99 from the second image, including: determining the first color block information of the target color block 99 from the second image based on the test paper area 20 where the first dry chemical test paper 91 is located and the position of the target color block 99 on the first dry chemical test paper 91.

[0144] In addition, in the case of (1.1) global camera + dynamic scene, or (1.2) global camera + static scene, the position of the first dry chemical test paper 91 in the image can also be determined by the test paper identification, thereby determining the color block information of the target color block 99. Therefore, in some embodiments, the first dry chemical test paper 91 has a test paper identification, which can be determined by image recognition to distinguish different dry chemical test papers; the processor 70 determines the first image including: for an image at any shooting moment i, according to the test paper identification of the first dry chemical test paper 91, determining the position of the first dry chemical test paper 91 in the image at any shooting moment i; obtaining the position of the target color block 99 on the first dry chemical test paper 91; according to the position of the first dry chemical test paper 91 in the image at any shooting moment i and the position of the target color block 99 on the first dry chemical test paper 91, obtaining the color block information of the target color block 99 in the first dry chemical test paper 91 from the image at any shooting moment i. In this way, the color block information of the target color block 99 in the image at each shooting moment can be obtained, so that the color feature difference between the color block information of the target color block 99 in the first dry chemical test paper 91 in the images at different shooting moments can be calculated to determine the first image.

[0145] The above-mentioned test paper marking scheme provides a method for determining the color block information of the target color block 99 from an image at any shooting time i, and is therefore also applicable to determining the color block information of the target color block 99 from the first image (referred to as the first color block information), and determining the color block information of the target color block 99 from the second image (referred to as the second color block information).

[0146] For example, the processor 70 determines the first color block information of the target color block 99 from the first image, including: determining the position of the first dry chemical test paper 91 in the first image based on the test paper identifier of the first dry chemical test paper 91; and determining the first color block information of the target color block 99 from the first image based on the position of the first dry chemical test paper 91 in the first image and the position of the target color block 99 on the first dry chemical test paper 91. Similarly, the processor 70 determines the first color block information of the target color block 99 from the second image, including: determining the position of the first dry chemical test paper 91 in the second image based on the test paper identifier of the first dry chemical test paper 91; and determining the second color block information of the target color block 99 from the second image based on the position of the first dry chemical test paper 91 in the second image and the position of the target color block 99 on the first dry chemical test paper 91.

[0147] (1.3) Local Camera + Dynamic Scene

[0148] In some embodiments, the imaging component 50 includes at least two local cameras 53, and the supporting component 10 includes a conveying assembly 11 and a power mechanism 13; in such an embodiment, the first dry chemical test paper 91 will be conveyed among multiple test paper areas 20, for example, from one test paper area 20 to the next test paper area 20 along a preset direction, so that when the first dry chemical test paper 91 is conveyed between the test paper areas 20 corresponding to the shooting field of view of each local camera 53, it can be photographed by the corresponding local camera 53 to obtain a first image and a second image.

[0149] In some embodiments, the processor 70 determines the first image including: for any shooting moment i, determining the test paper area where the first dry chemical test paper 91 is located at the any shooting moment i based on the second preset period, the any shooting moment i, and the test paper area 20 where the target color block 99 of the first dry chemical test paper 91 is located when the biological sample to be tested is added; determining the corresponding local camera 53 from the at least two local cameras included in the imaging component 50 based on the test paper area 20 where the first dry chemical test paper 91 is located at the any shooting moment i, obtaining an image captured by the local camera 53 at the any shooting moment i, and determining color block information of the target color block 99 in the first dry chemical test paper 91 from the image based on the position of the target color block 99 on the first dry chemical test paper 91. In this way, the color block information of the target color block 99 in the images at each shooting moment can be obtained, so that the color feature difference between the color block information of the target color block 99 in the first dry chemical test paper 91 in the images at different shooting moments can be calculated to determine the first image.

[0150] The above scheme provides a method for determining the color block information of the target color block 99 from an image at any shooting moment i, and is therefore also applicable to determining the color block information of the target color block 99 from the first image (referred to as the first color block information), and determining the color block information of the target color block 99 from the second image (referred to as the second color block information).

[0151] For example, the processor 70 determines the first color block information of the target color block 99 from the first image, including: determining the first color block information of the target color block 99 from the first image based on the position of the target color block 99 on the first dry chemical test paper 91. Similarly, the processor 70 determines the second color block information of the target color block 99 from the second image, including: determining the first color block information of the target color block 99 from the second image based on the position of the target color block 99 on the first dry chemical test paper 91.

[0152] (1.4) Local Camera + Static Scene

[0153] In some embodiments, the imaging component 50 includes at least two local cameras 53, and the dry chemical test paper 90 placed on the supporting component 10 is stationary relative to the imaging component 50. Therefore, in some embodiments, the first dry chemical test paper 91 is also stationary and non-moving. That is, when the dry chemical test paper 90 is located in a test paper area 20, the dry chemical test paper 90 will remain in this test paper area 20. Therefore, when the first dry chemical test paper 91 is in the test paper area 20 corresponding to the shooting field of view of any local camera 53, it can be photographed by the corresponding local camera 53 to obtain a first image and a second image. For example, the same local camera 53 can be used to capture the first image at one time and the second image at another time.

[0154] In some embodiments, the processor 70 determines the first image including: obtaining the test paper area 20 where the first dry chemical test paper 91 is located; determining the target local camera 53 from the at least two local cameras included in the imaging component 50 based on the test paper area 20 where the first dry chemical test paper 91 is located; for the image at any shooting moment i, according to the position of the target color block 99 on the first dry chemical test paper 91, determining the color block information of the target color block 99 from the target local camera 53 in the image at the any shooting moment i. In this way, the color block information of the target color block 99 in the image at each shooting moment can be obtained, so that the color feature difference between the color block information of the target color block 99 in the first dry chemical test paper 91 in the images at different shooting moments can be calculated to determine the first image.

[0155] The above scheme provides a method for determining the color block information of the target color block 99 from an image at any shooting moment i, and is therefore also applicable to determining the color block information of the target color block 99 from the first image (referred to as the first color block information), and determining the color block information of the target color block 99 from the second image (referred to as the second color block information).

[0156] For example, the processor 70 determines the first color block information of the target color block 99 from the first image, including: determining the first color block information of the target color block 99 from the first image based on the position of the target color block 99 on the first dry chemical test paper 91. Similarly, the processor 70 determines the second color block information of the target color block 99 from the second image, including: determining the first color block information of the target color block 99 from the second image based on the position of the target color block 99 on the first dry chemical test paper 91.

[0157] The above is some explanation on how to determine the first image by the color feature difference between the color block information of the target color block 99 in the first dry chemical test paper 91 in the images at different shooting times, and how to determine the color block information of the target color block 99 in the image, in combination with specific scenarios.

[0158] In some embodiments, the target color block 99 corresponds to a set reaction time Ts. After the target color block 99 is added with the biological sample to be tested and the set reaction time Ts has elapsed, the first dry chemical test paper 91 is photographed to obtain a first image.

[0159] Therefore, in some embodiments, the processor 70 determines the color block information of the target color block 99 of the first dry chemical test paper 91 at different times based on at least the first image and the second image, and calculates the detection result of the test item corresponding to the target color block 99 based on the color block information of the target color block 99 at different times, including: determining the first image, the first image is an image taken by the imaging component 50 after the target color block 99 of the first dry chemical test paper 91 is added with the biological sample to be tested and after a set reaction time Ts; determining the second image, the shooting time of the second image is before the shooting time of the first image; determining the first color block information of the target color block 99 from the first image, and determining the second color block information of the target color block 99 from the second image, and calculating the detection result of the test item corresponding to the target color block 99 based on at least the first color block information and the second color block information.

[0160] In some embodiments, the set reaction time Ts can be timed by the capture cycle of the imaging component 50. In some embodiments, the imaging component 50 periodically captures the first dry chemical test strip 91 at a first preset cycle; the set reaction time Ts is the duration corresponding to M first preset cycles after the target color block 99 of the first dry chemical test strip 91 is added with the biological sample to be tested. Accordingly, the first image is an image of the first dry chemical test strip 91 captured after the target color block 99 of the first dry chemical test strip 91 is added with the biological sample to be tested and after M first preset cycles, where M is a preset positive integer.

[0161] The following further describes how to determine the color block information of the target color block 99 from the first image captured by the imaging component 50 after the target color block 99 of the first dry chemical test paper 91 is added with the biological sample to be tested and after the set reaction time Ts, in conjunction with a specific scenario.

[0162] (2.1) Global Camera + Dynamic Scene

[0163] In some embodiments, the imaging component 50 includes a global camera 51, and the supporting component 10 includes a conveying assembly 11 and a power mechanism 13; in such an embodiment, the first dry chemical test paper 91 will be conveyed among multiple test paper areas 20, for example, from one test paper area 20 to the next test paper area 20 along a preset direction. When the first dry chemical test paper 91 is conveyed among the at least two test paper areas 20 covered by the shooting field of view of the global camera 51, it can be photographed by the global camera 51 to obtain a first image and a second image. For example, one of the at least two test paper areas 20 is photographed by the global camera 51 to obtain a first image, and another of the at least two test paper areas 20 is photographed by the global camera 51 to obtain a second image.

[0164] In some embodiments, the processor 70 determines the first color block information of the target color block 99 from the first image, including: determining the position of the first dry chemical test paper 91 in the first image based on the second preset cycle, the set reaction time Ts, and the test paper area 20 where the target color block 99 of the first dry chemical test paper 91 is located when the biological sample to be tested is added; obtaining the position of the target color block 99 on the first dry chemical test paper 91; and determining the first color block information of the target color block 99 from the first image based on the position of the first dry chemical test paper 91 in the first image and the position of the target color block 99 on the first dry chemical test paper 91. Similarly, the processor 70 determines the second color block information of the target color block 99 from the second image, including: determining the position of the first dry chemical test paper 91 in the second image based on the second preset period, the shooting time of the second image, and the test paper area 20 where the target color block 99 of the first dry chemical test paper 91 is located when the biological sample to be tested is added; determining the second color block information of the target color block 99 from the second image based on the position of the first dry chemical test paper 91 in the second image and the position of the target color block 99 on the first dry chemical test paper 91.

[0165] (2.2) Global Camera + Static Scene

[0166] In some embodiments, the imaging component 50 includes a global camera 51, and the dry chemical test paper 90 placed on the supporting component 10 is stationary relative to the imaging component 50; therefore, in some embodiments, the first dry chemical test paper 91 is also stationary and non-moving. That is, when the dry chemical test paper 90 is located in a test paper area 20, the dry chemical test paper 90 will remain in this test paper area 20. Therefore, when the first dry chemical test paper 91 is in any of the at least two test paper areas covered by the shooting field of view of the global camera 51, it can be photographed to obtain a first image and a second image. For example, the first image is captured at one time and the second image is captured at another time. It can be understood that because the first dry chemical test paper 91 is stationary and non-moving on the supporting component 10, the position of the first dry chemical test paper 91 in the first image and the second image is also the same and unchanged.

[0167] In some embodiments, the processor 70 determines the first color block information of the target color block 99 from the first image, including: obtaining the test paper area 20 where the first dry chemical test paper 91 is located; determining the position of the first dry chemical test paper 91 in the first image based on the test paper area 20 where the first dry chemical test paper 91 is located; obtaining the position of the target color block 99 on the first dry chemical test paper 91; and determining the first color block information of the target color block 99 from the first image based on the position of the first dry chemical test paper 91 in the first image and the position of the target color block 99 on the first dry chemical test paper 91. Similarly, the processor 70 determines the second color block information of the target color block 99 from the second image, including: obtaining the test paper area 20 where the first dry chemical test paper 91 is located; determining the position of the first dry chemical test paper 91 in the second image based on the test paper area 20 where the first dry chemical test paper 91 is located; obtaining the position of the target color block 99 on the first dry chemical test paper 91; and determining the second color block information of the target color block 99 from the second image based on the position of the first dry chemical test paper 91 in the second image and the position of the target color block 99 on the first dry chemical test paper 91.

[0168] In addition, in the case of (2.1) global camera + dynamic scene, or (2.2) global camera + static scene, the position of the first dry chemical test paper 91 in the image can also be determined by the test paper identifier, thereby determining the color block information of the target color block 99. Therefore, in some embodiments, the first dry chemical test paper 91 has a test paper identifier, and the test paper identifier can be determined by image recognition to distinguish different dry chemical test papers. In some embodiments, the processor 70 determines the first color block information of the target color block 99 from the first image, including: determining the position of the first dry chemical test paper 91 in the first image according to the test paper identifier of the first dry chemical test paper 91; obtaining the position of the target color block 99 on the first dry chemical test paper 91; and determining the first color block information from the first image according to the position of the first dry chemical test paper 91 in the first image and the position of the target color block 99 on the first dry chemical test paper 91. Similarly, the processor 70 determines the second color block information of the target color block 99 from the second image, including: determining the position of the first dry chemical test paper 91 in the second image based on the test paper identification of the first dry chemical test paper 91; obtaining the position of the target color block 99 on the first dry chemical test paper 91; and determining the second color block information from the second image based on the position of the first dry chemical test paper 91 in the second image and the position of the target color block 99 on the first dry chemical test paper 91.

[0169] (2.3) Local Camera + Dynamic Scene

[0170] In some embodiments, the imaging component 50 includes at least two local cameras 53, and the supporting component 10 includes a conveying assembly 11 and a power mechanism 13; in such an embodiment, the first dry chemical test paper 91 will be conveyed among multiple test paper areas 20, for example, from one test paper area 20 to the next test paper area 20 along a preset direction, so that when the first dry chemical test paper 91 is conveyed between the test paper areas 20 corresponding to the shooting field of view of each local camera 53, it can be photographed by the corresponding local camera 53 to obtain a first image and a second image.

[0171] In some embodiments, the processor 70 determines the first color block information of the target color block 99 from the first image, including: determining the first test paper area 20 of the first dry chemical test paper 91 in the test paper area when the biological sample to be tested is added and the set reaction time Ts has passed based on the second preset period, the set reaction time Ts, and the test paper area 20 where the target color block 99 of the first dry chemical test paper 91 is located when the biological sample to be tested is added; determining the first local camera 53 from the at least two local cameras 53 included in the imaging component 50 based on the first test paper area 20; obtaining the image captured by the first local camera 53 on the target color block 99 of the first dry chemical test paper 91 after the biological sample to be tested is added and the set reaction time Ts has passed as the first image; and determining the first color block information of the target color block 99 from the first image based on the position of the target color block 99 on the first dry chemical test paper 91. Similarly, the processor 70 determines the second color block information of the target color block 99 from the second image, including: determining the second test paper area 20 of the first dry chemical test paper 91 in the test paper area at the time of shooting the second image based on the second preset period, the shooting time of the second image and the test paper area 20 where the target color block 99 of the first dry chemical test paper 91 is located when the biological sample to be tested is added; determining the second local camera 53 from the at least two local cameras 53 included in the imaging component 50 based on the second test paper area 20; obtaining the image captured by the second local camera 53 at the shooting time of the second image as the second image; and determining the second color block information of the target color block 99 from the second image based on the position of the target color block 99 on the first dry chemical test paper 91.

[0172] (2.4) Local Camera + Static Scene

[0173] In some embodiments, the imaging component 50 includes at least two local cameras 53, and the dry chemical test paper 90 placed on the supporting component 10 is stationary relative to the imaging component 50. Therefore, in some embodiments, the first dry chemical test paper 91 is also stationary and non-moving. That is, when the dry chemical test paper 90 is located in a test paper area 20, the dry chemical test paper 90 will remain in this test paper area 20. Therefore, when the first dry chemical test paper 91 is in the test paper area 20 corresponding to the shooting field of view of any local camera 53, it can be photographed by the corresponding local camera 53 to obtain a first image and a second image. For example, the same local camera 53 can be used to capture the first image at one time and the second image at another time.

[0174] In some embodiments, the processor 70 determines first color block information of the target color block 99 from the first image, including: obtaining the test paper area 20 where the first dry chemical test paper 91 is located; determining the target local camera 53 from the at least two local cameras 53 included in the imaging component 50 based on the test paper area 20 where the first dry chemical test paper 91 is located; obtaining an image captured by the target local camera 53 of the target color block 99 on the first dry chemical test paper 91 after the biological sample to be tested is added and a set reaction time Ts has elapsed as the first image; and determining the first color block information of the target color block 99 from the first image based on the position of the target color block 99 on the first dry chemical test paper 91. Similarly, the processor 70 determines second color block information of the target color block 99 from the second image, including: obtaining an image captured by the target local camera 53 at the time the second image was captured as the second image; and determining the second color block information of the target color block 99 from the second image based on the position of the target color block 99 on the first dry chemical test paper 91.

[0175] The above is some explanation of how to determine the color block information of the target color block 99 from the first image and the second image taken by the imaging component 50 after the target color block 99 of the first dry chemical test paper 91 is added with the biological sample to be tested and after the set reaction time Ts, based on specific scenarios.

[0176] The above describes how to determine the first image and the second image, how to determine the first color block information of the target color block 99 from the first image, and how to determine the second color block information of the target color block 99 from the second image. In some embodiments, the processor 70 calculates the detection result of the test item corresponding to the target color block 99 based at least on the first color block information and the second color block information. For example, based at least on the first color block information and the second color block information, the processor 70 obtains an actual color curve of the target color block 99 that changes over time; compares the actual color curve with a plurality of standard color curves, wherein the plurality of standard color curves correspond to pre-established standard detection results of the test items corresponding to the target color block 99; and determines the detection result of the test item corresponding to the target color block 99 based on the comparison result. For example, the standard detection result corresponding to the standard color curve with the highest similarity to the actual color curve among the plurality of standard color curves is determined as the detection result of the test item corresponding to the target color block 99.

[0177] It should be noted that the actual color curve of target color block 99 changing over time can also be referred to as the reaction curve of target color block 99. The horizontal axis can be time, and the vertical axis can be data representing color, such as RGB values ​​or grayscale values. Similarly, the multiple standard color curves correspond to the standard test results of the test items corresponding to target color block 99. That is, each standard color curve corresponds to a standard test result of the test items corresponding to target color block 99. The standard color curve is the reaction curve after the biological sample with the corresponding standard test result is added to target color block 99.

[0178] To compare the similarity between the standard color curve and the actual color curve, existing methods for comparing the similarity of two curves can be used, such as calculating the degree of fit of a nonlinear regression equation; further, methods for calculating time series similarity, such as the DTW algorithm and the PLR ​​algorithm, can be used.

[0179] In some schemes, each time the first dry chemical test paper 91 is photographed, the actual color curve of the target color block 99 changing with time is generated and updated in real time, and the real-time actual color curve is matched with multiple standard color curves. When the match is successful, the process stops and the standard test result corresponding to the successfully matched standard color curve is determined as the test result of the test item corresponding to the target color block 99; if the match fails, the actual color curve of the target color block 99 changing with time continues to be generated and updated.

[0180] Therefore, in some embodiments, the processor 70 determines color block information of the target color block 99 of the first dry chemical test paper 91 at different times based on at least the first image and the second image, and calculates the test result of the test item corresponding to the target color block 99 based on the color block information of the target color block 99 at different times, including:

[0181] Starting from the image captured at the Kth capture time of the first dry chemical test paper 91, an actual color curve of the target color block of the first dry chemical test paper 91 changing over time is generated based on the image captured at the capture time and a portion or all of the images captured of the first dry chemical test paper 91 before the capture time, and the actual color curve is matched with a plurality of standard color curves that are pre-established corresponding to standard test results of the test items corresponding to the target color block;

[0182] When there is no standard color curve in the plurality of standard color curves whose similarity to the actual color curve is greater than the target threshold, the matching fails: continuing to generate the actual color change of the target color block 99 of the first dry chemical test paper 91 and performing the matching;

[0183] When there is a standard color curve among the multiple standard color curves whose similarity with the actual color curve is greater than the target threshold, the match is successful: the standard test result corresponding to the standard color curve among the multiple standard color curves whose similarity with the actual color curve is greater than the target threshold is determined as the test result of the test item corresponding to the target color block 99, and the generation of the actual color change of the target color block 99 of the first dry chemical test paper 91 and the matching are stopped.

[0184] In some embodiments, K is 1, 2, 3, 4, 5 or 6, etc.

[0185] The following further explains how to generate and match the actual color curve in real time based on specific scenarios.

[0186] (3.1) Global Camera + Dynamic Scene

[0187] In some embodiments, the imaging component 50 includes a global camera 51, and the supporting component 10 includes a conveying assembly 11 and a power mechanism 13; in such an embodiment, the first dry chemical test paper 91 will be conveyed in multiple test paper areas 20, for example, from one test paper area 20 to the next test paper area 20 along a preset direction, and the first dry chemical test paper 91 can be photographed by the global camera 51 when it is conveyed in the at least two test paper areas 20 covered by the shooting field of view of the global camera 51.

[0188] In some embodiments, the processor 70 starts from the image of the first dry chemical test paper 91 taken at the Kth shooting moment, and generates the actual color change of the target color block 99 of the first dry chemical test paper 91 based on the image taken at the shooting moment and part or all of the images of the first dry chemical test paper 91 taken before the shooting moment, including: for the image at any i-th shooting moment, according to the second preset period, the i-th shooting moment and the test paper area 20 where the target color block 99 of the first dry chemical test paper 91 is located when the biological sample to be tested is added, determining the position of the first dry chemical test paper in the image at the i-th shooting moment; obtaining the position of the target color block 99 on the first dry chemical test paper 91; determining the color block information of the target color block 99 from the image at the i-th shooting moment based on the position of the first dry chemical test paper 91 in the image at the i-th shooting moment and the position of the target color block 99 on the first dry chemical test paper 91.

[0189] (3.2) Global Camera + Static Scene

[0190] In some embodiments, the imaging component 50 includes a global camera 51, and the dry chemical test paper 90 placed on the supporting component 10 is stationary relative to the imaging component 50; therefore, in some embodiments, the first dry chemical test paper 91 is also stationary and non-moving. That is, when the dry chemical test paper 90 is located in a test paper area 20, the dry chemical test paper 90 will remain in this test paper area 20. Therefore, when the first dry chemical test paper 91 is in any of the at least two test paper areas covered by the shooting field of view of the global camera 51, it can be photographed. It can be understood that because the first dry chemical test paper 91 is stationary and non-moving on the supporting component 10, the position of the first dry chemical test paper 91 in the first image and the second image is also the same and unchanged.

[0191] In some embodiments, the processor 70 starts from the image of the first dry chemical test paper 91 taken at the Kth shooting moment, and generates the actual color change of the target color block 99 of the first dry chemical test paper 91 based on the image taken at the shooting moment and part or all of the images of the first dry chemical test paper 91 taken before the shooting moment, including: obtaining the test paper area 20 where the first dry chemical test paper 91 is located; for the image at any i-th shooting moment, determining the position of the first dry chemical test paper 91 in the image at the i-th shooting moment based on the test paper area 20 where the first dry chemical test paper 91 is located, and determining the color block information of the target color block 99 from the image at the i-th shooting moment based on the position of the first dry chemical test paper 91 in the image at the i-th shooting moment and the position of the target color block 99 on the first dry chemical test paper 91.

[0192] (3.3) Local Camera + Dynamic Scene

[0193] In some embodiments, the imaging component 50 includes at least two local cameras 53, and the supporting component 10 includes a conveying assembly 11 and a power mechanism 13; in such an embodiment, the first dry chemical test paper 91 will be conveyed among multiple test paper areas 20, for example, from one test paper area 20 to the next test paper area 20 along a preset direction, so that when the first dry chemical test paper 91 is conveyed between the test paper areas 20 corresponding to the shooting field of view of each local camera 53, it can be photographed by the corresponding local camera 53.

[0194] In some embodiments, the processor 70 starts from the image captured at the Kth capturing moment of the first dry chemical test paper 91, and generates the actual color change of the target color block 99 of the first dry chemical test paper 91 based on the image captured at the capturing moment and part or all of the images of the first dry chemical test paper 91 captured before the capturing moment, including: for any i-th capturing moment, determining the test paper area 20 where the first dry chemical test paper 91 is located at the i-th capturing moment based on the second preset period, the i-th capturing moment, and the test paper area 20 where the target color block 99 of the first dry chemical test paper 91 is located when the biological sample to be tested is added; determining the corresponding local camera 53 from the at least two local cameras 53 included in the imaging component 50 based on the test paper area 20 where the first dry chemical test paper 91 is located at the i-th capturing moment, obtaining the image captured by the local camera 53 at the i-th capturing moment, and determining the color block information of the target color block 99 from the image at the i-th capturing moment based on the position of the target color block 99 on the first dry chemical test paper 91.

[0195] (3.4) Local Camera + Static Scene

[0196] In some embodiments, the imaging component 50 includes at least two local cameras 53, and the dry chemical test paper 90 placed on the supporting component 10 is stationary relative to the imaging component 50. Therefore, in some embodiments, the first dry chemical test paper 91 is also stationary and non-moving. That is, when the dry chemical test paper 90 is located in a test paper area 20, it will remain in this test paper area 20. Therefore, when the first dry chemical test paper 91 is in the test paper area 20 corresponding to the shooting field of view of any local camera 53, it can be photographed by the corresponding local camera 53.

[0197] In some embodiments, the processor 70 starts from the image taken of the first dry chemical test paper 91 at the Kth shooting moment, and generates the actual color change of the target color block 99 of the first dry chemical test paper 91 based on the image taken at the shooting moment and part or all of the images of the first dry chemical test paper 91 taken before the shooting moment, including: obtaining the test paper area 20 where the first dry chemical test paper 91 is located; determining the target local camera 53 from the at least two local cameras included in the imaging component 50 based on the test paper area 20 where the first dry chemical test paper 91 is located; for any i-th shooting moment, determining the color block information of the target color block 99 from the image taken by the target local camera 53 at the i-th shooting moment based on the position of the target color block 99 on the first dry chemical test paper 91.

[0198] The above describes the solution of the present application in combination with various scenarios; in particular, in the scenario of a global camera, since the shooting field of view of the global camera 51 can cover at least two test paper areas 20, the image captured by the global camera 51 at the same time can have multiple dry chemical test papers 90, thereby improving the image reuse rate, which is explained in detail below.

[0199] In some embodiments, the dry chemical test paper 90 includes, in addition to the first dry chemical test paper 91, a second dry chemical test paper 92. The second dry chemical test paper 92 has one or more color blocks 99, each corresponding to a test item. In addition to capturing the first and second images, the global camera 51 also captures a fourth image. The first, second, and fourth images are captured at different times. As described herein, the test result for the test item corresponding to the target color block 99 of the first dry chemical test paper 91 can be calculated based on at least the first and second images. In addition to the first dry chemical test paper 91, the first and second images may also contain other dry chemical test papers 90.

[0200] For example, if the second dry chemical test paper 92 is present in both the first and fourth images, the processor 70 can determine the color information of a color block 99 of the second dry chemical test paper 92 at different times based on at least the first and fourth images, and calculate the test result of the test item corresponding to the color block 99 based on the color information of the color block 99 at different times. Similarly, if the second dry chemical test paper 92 is present in both the second and fourth images, the processor 70 can determine the color information of a color block 99 of the second dry chemical test paper 92 at different times based on at least the second and fourth images, and calculate the test result of the test item corresponding to the color block 99 based on the color information of the color block 99 at different times. It can be understood that at this time, the detection result of the test item corresponding to the color block 99 is calculated based on the color block information of the color block 99 of the second dry chemical test paper 92 at at least two moments. For specific how to obtain the color block 99 of the second dry chemical test paper 92 from the image and how to finally calculate it, please refer to the relevant instructions for the target color block 99 of the first dry chemical test paper 91. The serial numbers assigned to the objects in this article, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning.

[0201] The color block information can be relevant information that characterizes the color. Therefore, the processor 70 obtains the actual color of the target color block 99 at different times based on at least two images of the first dry chemical test paper 91 taken at different times, and calculates the detection results of the test items corresponding to the target color block 99 based on the actual colors of the target color block at different times. For example, in a dynamic scene and when the transportation cycle is the second preset cycle of this article, for an image at any one of the at least two images taken at different times, the processor 70 determines the position of the first dry chemical test paper 91 in the image at any one of the times i based on the second preset cycle, the arbitrary time i, and the position of the sample application area 21, and obtains the actual color of the target color block 99 in the first dry chemical test paper 91 from the image at any one of the times i based on the position of the first dry chemical test paper 91 in the image at any one of the times i and the position of the target color block 99 on the first dry chemical test paper 91; and then For example, in the case where the first dry chemical test paper 91 has a test paper identification, for an image at any shooting time i in at least two images at different shooting times, the position of the first dry chemical test paper 91 in the image at the said any shooting time i is determined according to the test paper identification of the first dry chemical test paper 91, and the position of the target color block 99 on the first dry chemical test paper 91 is obtained. According to the position of the first dry chemical test paper 91 in the image at the said any shooting time i and the position of the target color block 99 on the first dry chemical test paper 91, the actual color of the target color block 99 in the first dry chemical test paper 91 is obtained from the image at the said any shooting time i.

[0202] When specifically calculating the detection results, in some embodiments, the processor 70 calculates the actual color curve of the target color block 99 that changes with time based on the actual color of the target color block 99 at different times, and compares the actual color curve with multiple standard color curves, where the multiple standard color curves correspond to standard detection results of the test items corresponding to the target color block 99 and are pre-established; the detection results of the test items corresponding to the target color block 99 are determined based on the comparison results, for example, the standard detection result corresponding to the standard color curve with the highest similarity to the actual color curve among the multiple standard color curves is determined as the detection result of the test item corresponding to the target color block 99.

[0203] When specifically calculating the test results, in some embodiments, the processor 70 compares the actual color of the target color block 99 at different times with a plurality of standard color groups, each standard color group including a standard color corresponding to the reaction time at the different times; each standard color group is pre-established corresponding to the standard test result of the test item corresponding to the target color block 99; and the test result of the test item corresponding to the target color block 99 is determined based on the comparison result. Here, the actual color of the target color block 99 at different times actually forms a set of time series data groups, which reflects a set of data groups that change over time during the reaction process of the added biological sample to be tested, and can also be equivalently considered as a discretized representation of a continuous reaction curve; accordingly, each standard color group is also a set of time series data groups, which reflects a set of data groups that change over time during the reaction process after the biological sample with the corresponding standard test result is added to the target color block 99, and can be equivalently considered as a discretized representation of a continuous reaction curve.

[0204] In the present application, when conducting dry chemical testing, the color block in the dry chemical test paper 90 is calculated based on the color block information or actual color of the color block at at least two moments to obtain the test result of the test item corresponding to the color block. The specific calculation method can be, for example, the above-mentioned method of calculating the test result by calculating the similarity between the actual color curve and the standard color curve; in some embodiments, it can also be calculated by artificial intelligence AI.

[0205] Therefore, in some embodiments, the processor 70 calculates the detection results of the test items corresponding to the target color block 99 based on the color block information of the target color block 99 at different times, including: inputting the color block information of the target color block 99 at different times into a pre-established machine learning model to obtain the detection results of the test items corresponding to the target color block 99 through the machine learning model.

[0206] Machine learning models can be trained using a training set, and their parameters can be fine-tuned using a test set. Both the training and test sets can contain color information at different times (i.e., a time series data set consisting of color information from at least two times), and the labels of the data sets can be the corresponding test results. Furthermore, different machine learning models can be introduced for different types of color blocks (primarily distinguished by the test item and the reagent used to make the color block).

[0207] In some embodiments of the present application, a dry chemical detection method is also disclosed. In some embodiments, the dry chemical detection method of the present application can be applied to the dry chemical detection device disclosed in the present application.

[0208] Referring to FIG. 7 , the dry chemical detection method of some embodiments includes the following steps:

[0209] Step 1000: Sample loading component 30 adds a biological sample to color block 99 of dry chemical test paper 90 located in test paper area 20. Dry chemical test paper 90 includes first dry chemical test paper 91, or at least one type of dry chemical test paper 90 is first dry chemical test paper 91. First dry chemical test paper 91 has one or more color blocks 99, each corresponding to a test item. For ease of discussion, one of color blocks 99 will be referred to as target color block 99.

[0210] In some embodiments, the biological sample to be tested includes a urine sample, a body fluid sample, and / or a vaginal secretion.

[0211] Step 1100: After the sample adding component 30 adds the biological sample to the target color block 99 of the first dry chemical test paper 91, the first dry chemical test paper 91 is photographed by the imaging component 50 to obtain multiple images; the multiple images include at least a first image and a second image, and the first image and the second image are photographed at different times.

[0212] Step 1200: Determine the color block information of the target color block 99 of the first dry chemical test paper 91 at different times based on at least the first image and the second image, and calculate the detection result of the test item corresponding to the target color block 99 based on the color block information of the target color block 99 at different times.

[0213] In some embodiments, particularly in dynamic scenarios, step 1200 determines color block information of the target color block 99 of the first dry chemical test paper 91 at different times based on at least the first image and the second image, including: using image information located in a preset first area of ​​the first image as first color block information of the target color block 99, where the preset first area corresponds to the target color block 99 of the first dry chemical test paper 91; and using image information located in a preset second area of ​​the second image as second color block information of the target color block 99, where the preset second area corresponds to the target color block 99 of the first dry chemical test paper 91. In some embodiments, before determining the color block information of the target color block 99 of the first dry chemical test paper 91 at different times based on at least the first image and the second image, step 1200 further includes: obtaining the test paper type of the first dry chemical test paper 91, and obtaining the preset first area and the preset second area based on the test paper type of the first dry chemical test paper 91.

[0214] In some embodiments, the dry chemical detection method may further include photographing the dry chemical test paper 90 before adding the biological sample to be tested to determine whether the dry chemical test paper 90 has any abnormalities. Therefore, in some embodiments, the dry chemical detection method further includes step 1: photographing the first dry chemical test paper 91 by the imaging component 50 before the sample adding component 30 adds the biological sample to the target color block 99 of the first dry chemical test paper 91 to obtain a third image, and determining an abnormality of the first dry chemical test paper 91 based on the third image. The abnormality includes at least one of a first type of abnormality and a second type of abnormality; the first type of abnormality is used to indicate that the first dry chemical test paper 91 is unusable, and the second type of abnormality is used to indicate that there is a deviation in the position of at least one color block in the first dry chemical test paper 91.

[0215] In some embodiments, the first image is determined by comparing color feature differences between the target color block 99 in the first dry chemical test paper 91 in images captured at different times, such that the color feature difference between the target color block in the first image and the target color block in at least one image captured previously is less than a set threshold. The color feature difference between the target color block 99 at two different times can be, for example, a difference in grayscale values ​​represented by the color block information. The first image thus selected is typically an image of the target color block 99 captured at the end of a reaction or at the point where a substantial reaction has ended.

[0216] Therefore, referring to FIG. 8 , in some embodiments, step 1200 determines color block information of the target color block 99 of the first dry chemical test paper 91 at different times based on at least the first image and the second image, and calculates the test result of the test item corresponding to the target color block 99 based on the color block information of the target color block 99 at different times, including:

[0217] Step 1210: Calculate the color feature difference between the color block information of the target color block 99 in the first dry chemical test paper 91 in images at different shooting times to determine the first image, so that the color feature difference between the color block information of the target color block 99 in the first image and the color block information of the target color block 99 in at least one image taken before it is less than a set threshold.

[0218] Step 1230: Determine a second image, where the second image is captured before the first image.

[0219] Step 1240: Determine the first color block information of the target color block 99 from the first image, and determine the second color block information of the target color block 99 from the second image, and calculate the detection result of the test item corresponding to the target color block 99 based on at least the first color block information and the second color block information.

[0220] In some embodiments, in the global camera + dynamic scene, please refer to Figure 9, the dry chemical detection method also includes step 1010: driving the supporting component 10 by the driving component 10a so that the dry chemical test paper 90 placed on the supporting component 10 is periodically transported in multiple test paper areas 20 along a preset direction with a second preset period, so that when the first dry chemical test paper 91 is transported in the at least two test paper areas 20 covered by the shooting field of view of the global camera 51, it can be photographed by the global camera 51 to obtain the first image and the second image.

[0221] For example, the first dry chemical test paper 91 will be transported among multiple test paper areas 20, for example, from one test paper area 20 to the next test paper area 20 along a preset direction. When the first dry chemical test paper 91 is transported among the at least two test paper areas 20 covered by the shooting field of view of the global camera 51, it can be photographed by the global camera 51 to obtain a first image and a second image. For example, one of the at least two test paper areas 20 is photographed by the global camera 51 to obtain a first image, and another of the at least two test paper areas 20 is photographed by the global camera 51 to obtain a second image.

[0222] In some embodiments, referring to FIG. 10( a ), in combination with the scene defined in step 1010 , step 1210 may determine the first image as follows:

[0223] Step 1211: For an image at any shooting time i, determine the position of the first dry chemical test paper 91 in the image at any shooting time i based on the second preset period, the arbitrary shooting time i, and the test paper area 20 where the target color block 99 of the first dry chemical test paper 91 is located when the biological sample to be tested is added.

[0224] Step 1212: According to the position of the first dry chemical test paper 91 in the image at any shooting moment i and the position of the target color block 99 on the first dry chemical test paper 91, the color block information of the target color block 99 in the first dry chemical test paper 91 is obtained from the image at any shooting moment i. In this way, the color block information of the target color block 99 in the image at each shooting moment can be obtained, so that the color feature difference between the color block information of the target color block 99 in the first dry chemical test paper 91 in the images at different shooting moments can be calculated to determine the first image.

[0225] The above scheme provides a method for determining the color block information of the target color block 99 from an image at any shooting moment i, and is therefore also applicable to determining the color block information of the target color block 99 from the first image (referred to as the first color block information), and determining the color block information of the target color block 99 from the second image (referred to as the second color block information).

[0226] For example, step 1240 determines the first color block information of the target color block 99 from the first image, including: determining the position of the first dry chemical test strip 91 in the first image based on the second preset period, the time when the first image was captured, and the test strip area 20 where the first dry chemical test strip 91 was located when the biological sample to be tested was added; and determining the first color block information of the target color block 99 from the first image based on the position of the first dry chemical test strip 91 in the first image and the position of the target color block 99 on the first dry chemical test strip 91. Similarly, step 1240 determines the second color block information of the target color block 99 from the second image, including: determining the position of the first dry chemical test strip 91 in the second image based on the second preset period, the time when the second image was captured, and the test strip area 20 where the first dry chemical test strip 91 was located when the biological sample to be tested was added; and determining the second color block information of the target color block 99 from the second image based on the position of the first dry chemical test strip 91 in the second image and the position of the target color block 99 on the first dry chemical test strip 91.

[0227] In some embodiments, referring to FIG. 10( b ), in a global camera + static scene, step 1210 may determine the first image as follows:

[0228] Step 1213: Acquire the test paper area 20 where the first dry chemical test paper 91 is located.

[0229] Step 1214 : For an image at any shooting time i, determine the position of the first dry chemical test paper 91 in the image at any shooting time i according to the test paper area 20 where the first dry chemical test paper 91 is located.

[0230] Step 1215: According to the position of the first dry chemical test paper 91 in the image at any shooting moment i and the position of the target color block 99 on the first dry chemical test paper 91, the color block information of the target color block 99 in the first dry chemical test paper 91 is obtained from the image at any shooting moment i. In this way, the color block information of the target color block 99 in the image at each shooting moment can be obtained, so that the color feature difference between the color block information of the target color block 99 in the first dry chemical test paper 91 in the images at different shooting moments can be calculated to determine the first image.

[0231] The above scheme provides a method for determining the color block information of the target color block 99 from an image at any shooting moment i, and is therefore also applicable to determining the color block information of the target color block 99 from the first image (referred to as the first color block information), and determining the color block information of the target color block 99 from the second image (referred to as the second color block information).

[0232] For example, step 1240 determines the first color block information of the target color block 99 from the first image, including: determining the first color block information of the target color block 99 from the first image based on the test paper area 20 where the first dry chemical test paper 91 is located and the position of the target color block 99 on the first dry chemical test paper 91. Similarly, step 1240 determines the second color block information of the target color block 99 from the second image, including: determining the first color block information of the target color block 99 from the second image based on the test paper area 20 where the first dry chemical test paper 91 is located and the position of the target color block 99 on the first dry chemical test paper 91.

[0233] In addition, in the globally identical scene, especially in combination with a dynamic scene, the position of the first dry chemical test paper 91 in the image can also be determined by the test paper mark, thereby determining the color block information of the target color block 99. Therefore, in some embodiments, the first dry chemical test paper 91 has a test paper identification, which can be determined by image recognition to distinguish different dry chemical test papers; step 1210 can determine the first image as follows: for an image at any shooting time i, determine the position of the first dry chemical test paper 91 in the image at any shooting time i according to the test paper identification of the first dry chemical test paper 91; obtain the position of the target color block 99 on the first dry chemical test paper 91; according to the position of the first dry chemical test paper 91 in the image at any shooting time i and the position of the target color block 99 on the first dry chemical test paper 91, obtain the color block information of the target color block 99 in the first dry chemical test paper 91 from the image at any shooting time i. In this way, the color block information of the target color block 99 in the images at each shooting time can be obtained, so that the color feature difference between the color block information of the target color block 99 in the first dry chemical test paper 91 in the images at different shooting times can be calculated to determine the first image. The above-described test strip identification scheme provides a method for determining the color block information of target color block 99 from an image captured at any capture time i. Therefore, it is also applicable to determining the color block information of target color block 99 from a first image (referred to as first color block information) and determining the color block information of target color block 99 from a second image (referred to as second color block information). For example, step 1240 of determining the first color block information of target color block 99 from the first image includes: determining the position of first dry chemical test strip 91 in the first image based on the test strip identification of first dry chemical test strip 91; and determining the first color block information of target color block 99 from the first image based on the position of first dry chemical test strip 91 in the first image and the position of target color block 99 on first dry chemical test strip 91. Similarly, step 1240 determines the first color block information of the target color block 99 from the second image, including: determining the position of the first dry chemical test paper 91 in the second image based on the test paper identification of the first dry chemical test paper 91; and determining the second color block information of the target color block 99 from the second image based on the position of the first dry chemical test paper 91 in the second image and the position of the target color block 99 on the first dry chemical test paper 91.

[0234] In some embodiments, in the local camera + dynamic scene, please refer to Figure 11, the dry chemical detection method also includes step 1011: driving the supporting component 10 by the driving component 10a so that the dry chemical test paper 90 placed on the supporting component 10 is periodically transported in multiple test paper areas 20 along a preset direction with a second preset period, so that when the first dry chemical test paper 91 is transported between the test paper areas 20 corresponding to the shooting field of view of each local camera 53, it can be photographed by the corresponding local camera 53 to obtain the first image and the second image.

[0235] In some embodiments, referring to FIG. 12( a ), in combination with the scene defined in step 1011 , step 1210 may determine the first image as follows:

[0236] Step 1216: For any shooting moment i, determine the test paper area where the first dry chemical test paper 91 is located at the any shooting moment i based on the second preset period, the any shooting moment i, and the test paper area 20 where the target color block 99 of the first dry chemical test paper 91 is located when the biological sample to be tested is added.

[0237] Step 1217: According to the test paper area 20 where the first dry chemical test paper 91 is located at any shooting time i, determine the corresponding local camera 53 from the at least two local cameras included in the imaging component 50, and obtain the image captured by the local camera 53 at any shooting time i.

[0238] Step 1218: Determine the color block information of the target color block 99 in the first dry chemical test paper 91 in the image captured at any one shooting moment i from the local camera 53 determined in step 1217 according to the position of the target color block 99 on the first dry chemical test paper 91. In this way, the color block information of the target color block 99 in the image at each shooting moment can be obtained, so that the color feature difference between the color block information of the target color block 99 in the first dry chemical test paper 91 in the images at different shooting moments can be calculated to determine the first image.

[0239] The above scheme provides a method for determining the color block information of the target color block 99 from an image at any shooting moment i, and is therefore also applicable to determining the color block information of the target color block 99 from the first image (referred to as the first color block information), and determining the color block information of the target color block 99 from the second image (referred to as the second color block information).

[0240] For example, step 1240 of determining first color block information of target color block 99 from the first image includes: determining the first color block information of target color block 99 from the first image based on the position of target color block 99 on the first dry chemical test paper 91. Similarly, step 1240 of determining second color block information of target color block 99 from the second image includes: determining the first color block information of target color block 99 from the second image based on the position of target color block 99 on the first dry chemical test paper 91.

[0241] In some embodiments, referring to FIG. 12( b ), in a local camera + static scene, step 1210 may determine the first image as follows:

[0242] Step 1219: Obtain the test paper area 20 where the first dry chemical test paper 91 is located.

[0243] Step 1220 : Determine a target local camera 53 from the at least two local cameras included in the imaging component 50 according to the test paper area 20 where the first dry chemical test paper 91 is located.

[0244] Step 1221: For the image at any shooting moment i, according to the position of the target color block 99 on the first dry chemical test paper 91, determine the color block information of the target color block 99 in the image at any shooting moment i from the target local camera 53. In this way, the color block information of the target color block 99 in the image at each shooting moment can be obtained, so that the color feature difference between the color block information of the target color block 99 in the first dry chemical test paper 91 in the images at different shooting moments can be calculated to determine the first image.

[0245] The above scheme provides a method for determining the color block information of the target color block 99 from an image at any shooting moment i, and is therefore also applicable to determining the color block information of the target color block 99 from the first image (referred to as the first color block information), and determining the color block information of the target color block 99 from the second image (referred to as the second color block information).

[0246] For example, step 1230 of determining first color block information of target color block 99 from the first image includes: determining the first color block information of target color block 99 from the first image based on the position of target color block 99 on the first dry chemical test paper 91. Similarly, step 1230 of determining second color block information of target color block 99 from the second image includes: determining the first color block information of target color block 99 from the second image based on the position of target color block 99 on the first dry chemical test paper 91.

[0247] The above is some explanation on how to determine the first image by the color feature difference between the color block information of the target color block 99 in the first dry chemical test paper 91 in the images at different shooting times, and how to determine the color block information of the target color block 99 in the image, in combination with specific scenarios.

[0248] In some embodiments, the target color block 99 corresponds to a set reaction time Ts. After the target color block 99 is added with the biological sample to be tested and the set reaction time Ts has elapsed, the first dry chemical test paper 91 is photographed to obtain a first image.

[0249] Therefore, in some embodiments, referring to FIG. 13 , step 1200 determines color block information of the target color block 99 of the first dry chemical test paper 91 at different times based on at least the first image and the second image, and calculates the test result of the test item corresponding to the target color block 99 based on the color block information of the target color block 99 at different times, including:

[0250] Step 1250 : Determine a first image, which is an image captured by the imaging component 50 after the target color block 99 of the first dry chemical test paper 91 is added with the biological sample to be tested and after a set reaction time Ts.

[0251] In some embodiments, the set reaction time Ts can be timed by the capture cycle of the imaging component 50. In some embodiments, the imaging component 50 periodically captures the first dry chemical test strip 91 at a first preset cycle; the set reaction time Ts is the duration corresponding to M first preset cycles after the target color block 99 of the first dry chemical test strip 91 is added with the biological sample to be tested. Accordingly, the first image is an image of the first dry chemical test strip 91 captured after the target color block 99 of the first dry chemical test strip 91 is added with the biological sample to be tested and after M first preset cycles, where M is a preset positive integer.

[0252] Step 1260: Determine a second image, where the second image is captured before the first image.

[0253] Step 1270: Determine the first color block information of the target color block 99 from the first image, and determine the second color block information of the target color block 99 from the second image, and calculate the detection result of the test item corresponding to the target color block 99 based on at least the first color block information and the second color block information.

[0254] In some embodiments, referring to FIG. 14( a ), in combination with the scenario defined in step 1010 , step 1270 may determine the first color block information of the target color block 99 from the first image as follows:

[0255] Step 1271: Determine the position of the first dry chemical test paper 91 in the first image based on the second preset cycle, the set reaction time Ts, and the test paper area 20 where the target color block 99 of the first dry chemical test paper 91 is located when the biological sample to be tested is added.

[0256] Step 1272 : Obtain the position of the target color block 99 on the first dry chemical test paper 91 .

[0257] Step 1273 : Determine first color block information of the target color block 99 from the first image according to the position of the first dry chemical test paper 91 in the first image and the position of the target color block 99 on the first dry chemical test paper 91 .

[0258] Similarly, step 1270 determines the second color block information of the target color block 99 from the second image, including: determining the position of the first dry chemical test paper 91 in the second image based on the second preset period, the shooting time of the second image, and the test paper area 20 where the target color block 99 of the first dry chemical test paper 91 is located when the biological sample to be tested is added; and determining the second color block information of the target color block 99 from the second image based on the position of the first dry chemical test paper 91 in the second image and the position of the target color block 99 on the first dry chemical test paper 91.

[0259] In some embodiments, referring to FIG. 14( b ), in a global camera + static scene, step 1270 may determine the first color block information of the target color block 99 from the first image as follows:

[0260] Step 1274 : Obtain the test paper area 20 where the first dry chemical test paper 91 is located.

[0261] Step 1275 : Determine the position of the first dry chemical test paper 91 in the first image according to the test paper area 20 where the first dry chemical test paper 91 is located.

[0262] Step 1276 : Obtain the position of the target color block 99 on the first dry chemical test paper 91 .

[0263] Step 1277 : Determine first color block information of the target color block 99 from the first image based on the position of the first dry chemical test paper 91 in the first image and the position of the target color block 99 on the first dry chemical test paper 91 .

[0264] Similarly, step 1270 determines the second color block information of the target color block 99 from the second image, including: obtaining the test paper area 20 where the first dry chemical test paper 91 is located; determining the position of the first dry chemical test paper 91 in the second image based on the test paper area 20 where the first dry chemical test paper 91 is located; obtaining the position of the target color block 99 on the first dry chemical test paper 91; and determining the second color block information of the target color block 99 from the second image based on the position of the first dry chemical test paper 91 in the second image and the position of the target color block 99 on the first dry chemical test paper 91.

[0265] In addition, in globally identical scenes, especially when combined with dynamic scenes, the position of the first dry chemical test paper 91 in the image can also be determined by the test paper identifier, thereby determining the color block information of the target color block 99. Therefore, in some embodiments, the first dry chemical test paper 91 has a test paper identifier, and the test paper identifier can be determined by image recognition to distinguish different dry chemical test papers. In some embodiments, step 1270 determines the first color block information of the target color block 99 from the first image, including: determining the position of the first dry chemical test paper 91 in the first image based on the test paper identifier of the first dry chemical test paper 91; obtaining the position of the target color block 99 on the first dry chemical test paper 91; and determining the first color block information from the first image based on the position of the first dry chemical test paper 91 in the first image and the position of the target color block 99 on the first dry chemical test paper 91. Similarly, step 1270 determines the second color block information of the target color block 99 from the second image, including: determining the position of the first dry chemical test paper 91 in the second image based on the test paper identification of the first dry chemical test paper 91; obtaining the position of the target color block 99 on the first dry chemical test paper 91; and determining the second color block information from the second image based on the position of the first dry chemical test paper 91 in the second image and the position of the target color block 99 on the first dry chemical test paper 91.

[0266] In some embodiments, referring to FIG. 14( c ), in combination with the scenario defined in step 1011 , step 1270 may determine the first color block information of the target color block 99 from the first image as follows:

[0267] Step 1278: Based on the second preset cycle, the set reaction time Ts, and the test paper area 20 where the target color block 99 of the first dry chemical test paper 91 is located when the biological sample to be tested is added, determine that the first dry chemical test paper 91 is in the first test paper area 20 of the test paper area when the target color block 99 of the first dry chemical test paper 91 is added to the biological sample to be tested and the set reaction time Ts has passed.

[0268] Step 1279 : Determine a first local camera 53 from the at least two local cameras 53 included in the imaging component 50 according to the first test paper area 20 .

[0269] Step 1280: Acquire an image captured by the first local camera 53 at the target color block 99 of the first dry chemical test paper 91 after the biological sample to be tested is added and the set reaction time Ts has elapsed as the first image.

[0270] Step 1281 : Determine first color block information of the target color block 99 from the first image according to the position of the target color block 99 on the first dry chemical test paper 91 .

[0271] Similarly, step 1270 determines the second color block information of the target color block 99 from the second image, including: determining the second test paper area 20 of the first dry chemical test paper 91 in the test paper area at the time of shooting the second image based on the second preset period, the shooting time of the second image and the test paper area 20 where the target color block 99 of the first dry chemical test paper 91 is located when the biological sample to be tested is added; determining the second local camera 53 from the at least two local cameras 53 included in the imaging component 50 based on the second test paper area 20; obtaining the image shot by the second local camera 53 at the time of shooting the second image as the second image; and determining the second color block information of the target color block 99 from the second image based on the position of the target color block 99 on the first dry chemical test paper 91.

[0272] In some embodiments, referring to FIG. 14( d ), in a local camera + static scene, step 1270 may determine the first color block information of the target color block 99 from the first image as follows:

[0273] Step 1282: Obtain the test paper area 20 where the first dry chemical test paper 91 is located.

[0274] Step 1283 : Determine a target local camera 53 from the at least two local cameras 53 included in the imaging component 50 according to the test paper area 20 where the first dry chemical test paper 91 is located.

[0275] Step 1284: Acquire an image captured by the target local camera 53 at the target color block 99 of the first dry chemical test paper 91 after the biological sample to be tested is added and the set reaction time Ts has elapsed as the first image.

[0276] Step 1285 : Determine first color block information of the target color block 99 from the first image according to the position of the target color block 99 on the first dry chemical test paper 91 .

[0277] Similarly, step 1270 determines the second color block information of the target color block 99 from the second image, including: obtaining the image taken by the target local camera 53 at the shooting moment of the second image as the second image; and determining the second color block information of the target color block 99 from the second image according to the position of the target color block 99 on the first dry chemical test paper 91.

[0278] The above describes how to determine the first image and the second image, how to determine the first color block information of the target color block 99 from the first image, and how to determine the second color block information of the target color block 99 from the second image. In some embodiments, the calculation of the test results of the test items corresponding to the target color block 99 in steps 1240 and 1270 may be performed as follows, as shown in FIG. 15 :

[0279] Step 1241: Based on at least the first color block information and the second color block information, obtain an actual color curve of the target color block 99 that changes over time.

[0280] Step 1242 : Compare the actual color curve with a plurality of standard color curves, wherein the plurality of standard color curves are pre-established corresponding to standard detection results of the test items corresponding to the target color block 99 .

[0281] Step 1243: Determine the detection result of the test item corresponding to the target color block 99 based on the comparison result, for example, determine the standard detection result corresponding to the standard color curve with the highest similarity to the actual color curve among the multiple standard color curves as the detection result of the test item corresponding to the target color block 99.

[0282] In some schemes, each time the first dry chemical test paper 91 is photographed, the actual color curve of the target color block 99 changing with time is generated and updated in real time, and the real-time actual color curve is matched with multiple standard color curves. When the match is successful, the process stops and the standard test result corresponding to the successfully matched standard color curve is determined as the test result of the test item corresponding to the target color block 99; if the match fails, the actual color curve of the target color block 99 changing with time continues to be generated and updated.

[0283] Therefore, in some embodiments, referring to FIG. 16 , step 1200 determines color block information of the target color block 99 of the first dry chemical test paper 91 at different times based on at least the first image and the second image, and calculates the test result of the test item corresponding to the target color block 99 based on the color block information of the target color block 99 at different times, including:

[0284] Step 1290: Starting from the image taken at the Kth shooting moment of the first dry chemical test paper 91, generate an actual color curve of the target color block of the first dry chemical test paper 91 changing over time based on the image taken at the shooting moment and part or all of the images of the first dry chemical test paper 91 taken before the shooting moment, and match the actual color curve with multiple standard color curves, which are pre-established corresponding to the standard test results of the test items corresponding to the target color blocks.

[0285] In some embodiments, K is 1, 2, 3, 4, 5 or 6, etc.

[0286] Step 1291: When there is no standard color curve in the plurality of standard color curves whose similarity to the actual color curve is greater than the target threshold, the matching fails: the actual color change of the target color block 99 of the first dry chemical test paper 91 and the matching are continued;

[0287] Step 1292: When there is a standard color curve among the multiple standard color curves whose similarity with the actual color curve is greater than the target threshold, the match is successful: the standard test result corresponding to the standard color curve among the multiple standard color curves whose similarity with the actual color curve is greater than the target threshold is determined as the test result of the test item corresponding to the target color block 99, and the generation of the actual color change of the target color block 99 of the first dry chemical test paper 91 and the matching are stopped.

[0288] In some implementation embodiments, in a global camera + static scene, step 1290 starts from the image of the first dry chemical test paper 91 taken at the Kth shooting moment, and generates the actual color change of the target color block 99 of the first dry chemical test paper 91 based on the image taken at the shooting moment and part or all of the images of the first dry chemical test paper 91 taken before the shooting moment, including: for the image at any i-th shooting moment, according to the second preset period, the i-th shooting moment and the test paper area 20 where the target color block 99 of the first dry chemical test paper 91 is located when the biological sample to be tested is added, determine the position of the first dry chemical test paper in the image at the i-th shooting moment; obtain the position of the target color block 99 on the first dry chemical test paper 91; determine the color block information of the target color block 99 from the image at the i-th shooting moment based on the position of the first dry chemical test paper 91 in the image at the i-th shooting moment and the position of the target color block 99 on the first dry chemical test paper 91.

[0289] In some embodiments, in a global camera + static scene, step 1290 starts from the image of the first dry chemical test paper 91 taken at the Kth shooting moment, and generates the actual color change of the target color block 99 of the first dry chemical test paper 91 based on the image taken at the shooting moment and part or all of the images of the first dry chemical test paper 91 taken before the shooting moment, including: obtaining the test paper area 20 where the first dry chemical test paper 91 is located; for the image at any i-th shooting moment, determining the position of the first dry chemical test paper 91 in the image at the i-th shooting moment based on the test paper area 20 where the first dry chemical test paper 91 is located, and determining the color block information of the target color block 99 from the image at the i-th shooting moment based on the position of the first dry chemical test paper 91 in the image at the i-th shooting moment and the position of the target color block 99 on the first dry chemical test paper 91.

[0290] In some embodiments, in a local camera + static scene, step 1290 starts from the image of the first dry chemical test paper 91 taken at the Kth shooting moment, and generates the actual color change of the target color block 99 of the first dry chemical test paper 91 based on the image taken at the shooting moment and part or all of the images of the first dry chemical test paper 91 taken before the shooting moment, including: for any i-th shooting moment, according to the second preset period, the i-th shooting moment and the position of the target color block 99 of the first dry chemical test paper 91 when the biological sample to be tested is added, The test paper area 20 is used to determine the test paper area 20 where the first dry chemical test paper 91 is located at the i-th shooting moment; according to the test paper area 20 where the first dry chemical test paper 91 is located at the i-th shooting moment, the corresponding local camera 53 is determined from the at least two local cameras 53 included in the imaging component 50, and the image captured by the local camera 53 at the i-th shooting moment is obtained, and the color block information of the target color block 99 is determined from the image at the i-th shooting moment according to the position of the target color block 99 on the first dry chemical test paper 91.

[0291] In some implementation embodiments, in a local camera + static scene, step 1290 starts from the image of the first dry chemical test paper 91 taken at the Kth shooting moment, and generates the actual color change of the target color block 99 of the first dry chemical test paper 91 based on the image taken at the shooting moment and part or all of the images of the first dry chemical test paper 91 taken before the shooting moment, including: obtaining the test paper area 20 where the first dry chemical test paper 91 is located; according to the test paper area 20 where the first dry chemical test paper 91 is located, determining the target local camera 53 from the at least two local cameras included in the imaging component 50; for any i-th shooting moment, according to the position of the target color block 99 on the first dry chemical test paper 91, determine the color block information of the target color block 99 from the image taken by the target local camera 53 at the i-th shooting moment.

[0292] The above describes the solution of the present application in combination with various scenarios; in particular, in the scenario of a global camera, since the shooting field of view of the global camera 51 can cover at least two test paper areas 20, the image captured by the global camera 51 at the same time can have multiple dry chemical test papers 90, thereby improving the image reuse rate, which is explained in detail below.

[0293] In some embodiments, the dry chemical test paper 90 includes, in addition to the first dry chemical test paper 91, a second dry chemical test paper 92. The second dry chemical test paper 92 has one or more color blocks 99, each corresponding to a test item. In addition to capturing the first and second images, the global camera 51 also captures a fourth image. The first, second, and fourth images are captured at different times. As described herein, the test result for the test item corresponding to the target color block 99 of the first dry chemical test paper 91 can be calculated based on at least the first and second images. In addition to the first dry chemical test paper 91, the first and second images may also contain other dry chemical test papers 90.

[0294] For example, if both the first and fourth images contain the second dry chemical test paper 92, the dry chemical detection method may further include the steps of determining color information of a color block 99 of the second dry chemical test paper 92 at different times based on at least the first and fourth images, and calculating the test result of the test item corresponding to the color block 99 based on the color information of the color block 99 at different times. Similarly, if both the second and fourth images contain the second dry chemical test paper 92, the dry chemical detection method may further include the steps of determining color information of a color block 99 of the second dry chemical test paper 92 at different times based on at least the second and fourth images, and calculating the test result of the test item corresponding to the color block 99 based on the color information of the color block 99 at different times. It can be understood that at this time, the detection result of the test item corresponding to the color block 99 is calculated based on the color block information of the color block 99 of the second dry chemical test paper 92 at at least two moments. For specific how to obtain the color block 99 of the second dry chemical test paper 92 from the image and how to finally calculate it, please refer to the relevant instructions for the target color block 99 of the first dry chemical test paper 91. The serial numbers assigned to the objects in this article, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning.

[0295] The color block information may be related information representing the color. Therefore, referring to FIG. 17 , the dry chemical detection method of some embodiments includes the following steps:

[0296] Step 1300 : driving the carrying component 10 via the driving component 10 a so that the dry chemical test paper 90 placed on the carrying component 10 is transported in a plurality of test paper areas 20 along a preset direction; the plurality of test paper areas 20 include a sample addition area 21 .

[0297] Step 1310 : adding the biological sample to be tested to the target color block 99 in the first dry chemical test paper 91 transported to the sample adding area 21 through the sample adding component 30 .

[0298] Step 1320 : After the sample adding component 30 adds the biological sample to the target color block 99 of the first dry chemical test paper 91 , the global camera 51 photographs the first dry chemical test paper 91 to obtain at least two images of the first dry chemical test paper 91 at different photographing times.

[0299] Step 1330 : Obtain the actual colors of the target color block 99 at different times based on at least two images of the first dry chemical test paper 91 taken at different times.

[0300] In a dynamic scene and when the transport cycle is the second preset cycle in this article, step 1330 can obtain the actual color of the target color block 99 at different times based on at least two images of the first dry chemical test paper 91 taken at different times: for an image at any shooting time i in the at least two images taken at different times, determine the position of the first dry chemical test paper 91 in the image at the any shooting time i based on the second preset cycle, the any shooting time i and the position of the sample adding area 21, and obtain the actual color of the target color block 99 in the first dry chemical test paper 91 from the image at the any shooting time i based on the position of the first dry chemical test paper 91 in the image at the any shooting time i and the position of the target color block 99 on the first dry chemical test paper 91.

[0301] In a dynamic scene and when the first dry chemical test paper 91 has a test paper mark, step 1330 can obtain the actual color of the target color block 99 at different times based on at least two images of the first dry chemical test paper 91 taken at different times: for an image at any shooting time i in the at least two images taken at different times, determine the position of the first dry chemical test paper 91 in the image at the said any shooting time i based on the test paper mark of the first dry chemical test paper 91, obtain the position of the target color block 99 on the first dry chemical test paper 91, and based on the position of the first dry chemical test paper 91 in the image at the said any shooting time i and the position of the target color block 99 on the first dry chemical test paper 91, obtain the actual color of the target color block 99 in the first dry chemical test paper 91 from the image at the said any shooting time i.

[0302] Step 1340: Calculate the detection results of the test items corresponding to the target color block 99 according to the actual colors of the target color block 99 at different times.

[0303] When specifically calculating the test results, in some embodiments, step 1340 calculates the actual color curve of the target color block 99 that changes with time based on the actual color of the target color block 99 at different times, and compares the actual color curve with multiple standard color curves, wherein the multiple standard color curves correspond to standard test results of the test items corresponding to the target color block 99 and are pre-established; the test results of the test items corresponding to the target color block 99 are determined based on the comparison results, for example, the standard test result corresponding to the standard color curve with the highest similarity to the actual color curve among the multiple standard color curves is determined as the test result of the test item corresponding to the target color block 99.

[0304] When specifically calculating the test results, in some embodiments, step 1340 compares the actual color of the target color block 99 at different times with a plurality of standard color groups, each standard color group including a standard color corresponding to the reaction time at the different times; each standard color group is pre-established corresponding to the standard test result of the test item corresponding to the target color block 99; and the test result of the test item corresponding to the target color block 99 is determined based on the comparison result. Here, the actual color of the target color block 99 at different times actually forms a set of time series data groups, which reflects a set of data groups that change over time during the reaction process of the added biological sample to be tested, and can also be equivalently considered as a discretized representation of a continuous reaction curve; accordingly, each standard color group is also a set of time series data groups, which reflects a set of data groups that change over time during the reaction process after the biological sample with the corresponding standard test result is added to the target color block 99, and can be equivalently considered as a discretized representation of a continuous reaction curve.

[0305] In the present application, when conducting dry chemical testing, the color block in the dry chemical test paper 90 is calculated based on the color block information or actual color of the color block at at least two moments to obtain the test result of the test item corresponding to the color block. The specific calculation method can be, for example, the above-mentioned method of calculating the test result by calculating the similarity between the actual color curve and the standard color curve; in some embodiments, it can also be calculated by artificial intelligence AI.

[0306] Therefore, in some embodiments, based on the color block information of the target color block 99 at different times, the detection results of the test items corresponding to the target color block 99 are calculated, including: inputting the color block information of the target color block 99 at different times into a pre-established machine learning model to obtain the detection results of the test items corresponding to the target color block 99 through the machine learning model.

[0307] Machine learning models can be trained using a training set, and their parameters can be fine-tuned using a test set. Both the training and test sets can contain color information at different times (i.e., a time series data set consisting of color information from at least two times), and the labels of the data sets can be the corresponding test results. Furthermore, different machine learning models can be introduced for different types of color blocks (primarily distinguished by the test item and the reagent used to make the color block).

[0308] Second type of embodiment

[0309] In some embodiments, please refer to Figure 1(b), the dry chemical test paper 90 includes a first dry chemical test paper 91, or there is at least one type of dry chemical test paper 90 that is the first dry chemical test paper 91, and the first dry chemical test paper 91 has at least a first color block 01 corresponding to a first test item and a second color block 02 corresponding to a second test item, wherein the first test item corresponds to a preset first reaction time T1, and the second test item corresponds to a preset second reaction time T2 that is different from the first reaction time T1. Those skilled in the art can set specific values ​​for the first reaction time T1 of the first color block 01 and the second reaction time T2 of the first color block 02 based on clinical experience. Generally, after the addition of the test sample, after the first reaction time T1, the reagent in the first color block 01 reacts more fully with the test sample, or in other words, the color block information of the first color block 01 at this time can more accurately represent the test result. Similarly, after the addition of the test sample, after the second reaction time T2, the reagent in the second color block 02 reacts more fully with the test sample, or in other words, the color block information of the second color block 02 at this time can more accurately represent the test result. It can be understood that the first dry chemical test paper 91 is a type of dry chemical test paper 90; the first color block 01 is a type of color block 99, and the first color block 02 is another type of color block 99. Therefore, in other words, the first dry chemical test paper 91 has at least two color blocks 99, such as at least a first color block 01 and a second color block 02, each color block 99 corresponding to a test item.

[0310] In some embodiments, the sample adding component 30 is used to simultaneously add the same biological sample to be tested to the first color block 01 and the second color block 02 of the first dry chemical test paper 91 under the control of the processor 70; the imaging component 50 is used to photograph the first dry chemical test paper 91 after the sample adding component 30 adds the biological sample to be tested to the first color block 01 and the second color block 02 of the first dry chemical test paper 91 to obtain multiple images.

[0311] It should be noted that, in this article, "the sample adding component 30 is used to add the same biological sample to be tested to the first color block 01 and the second color block 02 of the first dry chemical test paper 91 at the same time under the control of the processor 70". The "simultaneously" involved here refers to the same time in the engineering sense. Generally, the sample adding component 30 will add the same biological sample to be tested to each color block in the first dry chemical test paper 91. If the sample adding component 30 cannot complete the addition of the biological sample to be tested to each color block in the first dry chemical test paper 91 at one time, it will need to be completed multiple times, and these multiple times are generally completed within a relatively short period of time. Therefore, it can be said that the same biological sample to be tested is added to each color block in the first dry chemical test paper 91 at the same time. For example, when the sample adding component 30 includes only one sample adding mechanism 31 and the sample adding mechanism 31 is a first type of sample adding mechanism 31, when the same biological sample to be tested is added to the first color block 01 and the second color block 02 of the first dry chemical test paper 91, the sample adding mechanism 31 will move to the corresponding positions respectively to complete two sample additions, one is to the first dry chemical test paper 91 The biological sample to be tested is added to the first color block 01, and the biological sample to be tested is added to the second color block 02 of the first dry chemical test paper 91. In this case, it is in accordance with the engineering sense of the term "simultaneously". For another example, when the sample adding component 30 includes two first-type sample adding mechanisms 31, the two first-type sample adding mechanisms 31 respectively add the same biological sample to be tested to the first color block 01 and the second color block 02 of the first dry chemical test paper 91 at the same time point, thereby achieving that the sample adding component 30 simultaneously adds the same biological sample to be tested to the first color block 01 and the second color block 02 of the first dry chemical test paper 91. For another example, when the sample adding component 30 includes one second-type sample adding mechanism 31, the two sample needles 31a in the second-type sample adding mechanism 31 respectively add the same biological sample to be tested to the first color block 01 and the second color block 02 of the first dry chemical test paper 91 at the same time point, thereby achieving that the sample adding component 30 simultaneously adds the same biological sample to be tested to the first color block 01 and the second color block 02 of the first dry chemical test paper 91.

[0312] The multiple images captured by the imaging component 50 include at least a first image and a second image. The first image is an image of the first dry chemical test paper 91 captured after the biological sample to be tested is added and a first reaction time T1 has elapsed. The second image is an image of the first dry chemical test paper 91 captured after the biological sample to be tested is added and a second reaction time T2 has elapsed. The processor 70 acquires the first and second images. The processor 70 determines first color block information from the first image and calculates a test result for a first test item corresponding to the first color block based at least on the first color block information. The processor 70 also determines second color block information from the second image and calculates a test result for a second test item corresponding to the second color block based at least on the second color block information.

[0313] Or, in other words, in the example where the processor 70 obtains an image captured by the imaging component 50 at at least one capturing moment and performs dry chemical testing based on the image captured at the aforementioned at least one capturing moment, the image captured at at least one moment includes at least a first image and a second image, the first image being an image of the first dry chemical test paper 91 captured after the biological sample to be tested is added and the first reaction time T1 has passed, and the second image being an image of the first dry chemical test paper 91 captured after the biological sample to be tested is added and the second reaction time T2 has passed.

[0314] In some embodiments, the first reaction time T1 and the second reaction time T2 can be calculated by the shooting cycle of the imaging component 50, or in other words, the first dry chemical test paper 91 is timed after the biological sample to be tested is added and the first reaction time T1 and the second reaction time T2 are passed. Therefore, in some embodiments, the imaging component 50 periodically photographs the first dry chemical test paper 91 at a first preset period to obtain multiple images; wherein: the first reaction time T1 is the time corresponding to M first preset periods after the biological sample to be tested is added to the first dry chemical test paper 91, and accordingly, the first image is the image of the first dry chemical test paper 91 obtained by photographing the first dry chemical test paper 91 after the biological sample to be tested is added and the first image is M first preset periods; the second reaction time T2 is the time corresponding to N first preset periods after the biological sample to be tested is added to the first dry chemical test paper 91, and accordingly, the second image is the image of the first dry chemical test paper 91 obtained by photographing the first dry chemical test paper 91 after the biological sample to be tested is added and the first preset periods; M and N are preset positive integers and the two are not equal.

[0315] For example, let's take the example of the first preset period being 10s, the first reaction time T1 being 30s, and the second reaction time T2 being 60s. At this time, the first reaction time T1 is the time corresponding to the three first preset periods after the biological sample to be tested is added to the first dry chemical test paper 91. Accordingly, the first image is the image obtained by the first dry chemical test paper 91 after the biological sample to be tested is added and the first dry chemical test paper 91 is photographed after the three first preset periods; the second reaction time is the time corresponding to the six first preset periods after the biological sample to be tested is added to the first dry chemical test paper 91. Accordingly, the second image is the image obtained by the first dry chemical test paper 91 after the biological sample to be tested is added and the first dry chemical test paper 91 is photographed after the six first preset periods.

[0316] In some embodiments, the reaction time can also be associated with the position. Therefore, in some embodiments, the processor 70 determines the first color block information from the first image, including: using the image information located in a preset first area of ​​the first image as the first color block information, the preset first area corresponding to the first color block 01 of the first dry chemical test paper 91; the processor 70 determines the second color block information from the second image, including: using the image information located in a preset second area of ​​the second image as the second color block information, the preset second area corresponding to the second color block 02 of the first dry chemical test paper 91.

[0317] For example, in the example of a global camera 51 plus a dynamic scene, the first color block 01 and the second color block 02 of the first dry chemical test paper 91 are added to the same biological sample to be tested at the same time. After a first reaction time T1, the first dry chemical test paper 91 will be transported to a specific test paper area 20, which may be referred to as the first test paper area 20 (assuming it is the fourth test paper area 20 from the middle left to the right in Figure 3). After a second reaction time T2, the first dry chemical test paper 91 will be transported to another specific test paper area 20 (assuming it is the sixth test paper area 20 from the middle left to the right in Figure 3), which may be referred to as the second test paper area 20. Since the first test paper area 20 and the second test paper area 20 are fixed, the position of the first dry chemical test paper 91 in the first image and the second image is also fixed and can be obtained without being based on the first image and the second image. For example, the first dry chemical test paper 91 is at the location of the fourth test paper area 20 in the first image, and for example, the first dry chemical test paper 91 is at the location of the sixth test paper area 20 in the second image; in addition, since the position of the color block on the dry chemical test paper 90 is also determined and can be obtained without being based on the first image and the second image, that is, the position of the first color block 01 on the first dry chemical test paper 91 is determined and can be obtained without being based on the first image and the second image, and the position of the second color block 02 on the first dry chemical test paper 91 is also determined and can be obtained without being based on the first image and the second image, therefore, the position of the first color block 01 in the first image is determined and can be obtained without being based on the first image and the second image, and the position of the second color block 02 in the second image is determined and can be obtained without being based on the first image and the second image.

[0318] In some embodiments, the processor 70 can obtain the preset areas corresponding to the various color blocks on the dry chemical test paper 90 by the test paper type of the dry chemical test paper 90. The test paper type may refer to the number of color blocks and / or the type of color blocks (i.e., the test items or reaction times corresponding to the color blocks are different) of the dry chemical test paper 90. It is understandable that the processor 70 can obtain the test paper type of the dry chemical test paper 90 by scanning the dry chemical test paper 90 with a scanner, etc., or can obtain the test paper type of the dry chemical test paper 90 by the operator inputting the test paper type of the dry chemical test paper 90 through an input tool. Therefore, in some embodiments, before the processor 70 determines the first color block information from the first image and determines the second color block information from the second image, it also includes: obtaining the test paper type of the first dry chemical test paper 91; and obtaining the above-mentioned preset first area and the above-mentioned preset second area according to the test paper type of the first dry chemical test paper 91.

[0319] In some embodiments, the first dry chemical test paper 91 further has a third color block 03 corresponding to a third test item; in such an embodiment, the sample adding component 30 is used to simultaneously add the same biological sample to be tested to the first color block 01, the second color block 02 and the third color block 03 of the first dry chemical test paper 91 under the control of the processor 70; and, the processor 70 is further used to determine the third color block information from the first image and / or the second image of the first dry chemical test paper 91, and calculate the detection result of the third test item corresponding to the third color block 03 based at least on the third color block information. For example, the third color block corresponds to the third test item, and the third test item corresponds to a preset third reaction time T3. When the third reaction time T3 is equal to the first reaction time T1, the processor 70 can determine the third color block information from the first image of the first dry chemical test paper 91, and calculate the detection result of the third test item corresponding to the third color block 03 at least based on the third color block information; when the third reaction time T3 is equal to the second reaction time T2, the processor 70 can determine the third color block information from the second image of the first dry chemical test paper 91, and calculate the detection result of the third test item corresponding to the third color block 03 at least based on the third color block information.

[0320] In some embodiments, the dry chemical detection device may further photograph the dry chemical test strip 90 before adding the biological sample to be tested to determine whether the dry chemical test strip 90 has any abnormalities. Therefore, in some embodiments, the imaging component 50 is further configured to photograph the first dry chemical test strip 91 to obtain a third image before the sample adding component 30 adds the biological sample to be tested to the first color block 01 and the second color block 02 of the first dry chemical test strip 91. The processor 70 is further configured to determine an abnormality of the first dry chemical test strip 91 based on the third image. The abnormality includes at least one of a first and a second type of abnormality. The first type of abnormality indicates that the first dry chemical test strip 91 is unusable, and the second type of abnormality indicates that there is a deviation in the position of at least one color block in the first dry chemical test strip 91.

[0321] In some embodiments, the first type of abnormality may specifically be that at least one color block in the first dry chemical test paper 91 is unusable, including but not limited to the original color of the color block changing due to reasons such as the color block being bent, falling off, or being affected by moisture, all of which may cause abnormalities in subsequent test results.

[0322] In some embodiments, the second type of abnormality may specifically be that the position of the first dry chemical test paper 91 in its width direction is not as expected, the first dry chemical test paper 91 is incorrectly placed, and / or there is a deviation in the position of at least one color block in the first dry chemical test paper 91 in its length direction. The position of the first dry chemical test paper 91 in its width direction is not as expected, which means that the first dry chemical test paper 91 is offset in the width direction in the position of the supporting component 10 or the test paper area 20, etc., which will result in the biological sample to be tested not dripping onto the color block 99 or dripping onto the edge of the color block 99 when adding the biological sample to be tested to the first dry chemical test paper 91. The incorrect placement of the first dry chemical test paper 91 includes but is not limited to being inverted head to tail, etc.; the placement of dry chemical test paper in the length direction is divided into "head to tail", and if the operator accidentally inverts the head to tail when placing the dry chemical test paper, the subsequent test results will naturally be abnormal. There is a deviation in the position of at least one color block in the first dry chemical test paper 91 in the length direction of the first dry chemical test paper 91. The reason for this abnormality may be a defect in the manufacture of the test paper, such as the spacing between adjacent color blocks is too large, or it may be due to the displacement of the first dry chemical test paper 91 along its own length direction on the supporting component 10 or in the test paper area 20.

[0323] The above is some explanation of this application, and the following is some explanation in combination with specific scenarios.

[0324] (1) Global Camera + Dynamic Scene

[0325] In some embodiments, the imaging component 50 includes a global camera 51, and the supporting component 10 includes a conveying assembly 11 and a power mechanism 13; in such an embodiment, the first dry chemical test paper 91 will be conveyed among multiple test paper areas 20, for example, from one test paper area 20 to the next test paper area 20 along a preset direction. When the first dry chemical test paper 91 is conveyed among the at least two test paper areas 20 covered by the shooting field of view of the global camera 51, it can be photographed by the global camera 51 to obtain a first image and a second image. For example, one of the at least two test paper areas 20 is photographed by the global camera 51 to obtain a first image, and another of the at least two test paper areas 20 is photographed by the global camera 51 to obtain a second image.

[0326] Therefore, in some embodiments, the processor 70 determines the first color block information from the first image, including: determining the position of the first dry chemical test paper 91 in the first image based on the second preset period, the first reaction time T1, and the test paper area 20 where the first dry chemical test paper 91 is located when the biological sample to be tested is added; obtaining the position of the first color block 01 on the first dry chemical test paper 91; and determining the first color block information from the first image based on the position of the first dry chemical test paper 91 in the first image and the position of the first color block 01 on the first dry chemical test paper 91.

[0327] Similarly, the processor 70 determines the second color block information from the second image, including: determining the position of the first dry chemical test paper 91 in the second image based on the second preset cycle, the second reaction time T2, and the test paper area 20 where the first dry chemical test paper 91 is located when the biological sample to be tested is added; obtaining the position of the second color block 02 on the first dry chemical test paper 91; and determining the second color block information from the second image based on the position of the first dry chemical test paper 91 in the second image and the position of the second color block 02 on the first dry chemical test paper 91.

[0328] In some embodiments, the global camera 51 periodically photographs the first dry chemical test paper 91 at a first preset period to obtain multiple images; wherein: the first reaction time T1 is the time corresponding to M first preset periods after the first dry chemical test paper 91 is added with the biological sample to be tested, and accordingly, the first image is the image of the first dry chemical test paper 91 obtained by photographing the first dry chemical test paper 91 after the first dry chemical test paper 91 is added with the biological sample to be tested and after M first preset periods; the second reaction time T2 is the time corresponding to N first preset periods after the first dry chemical test paper 91 is added with the biological sample to be tested, and accordingly, the second image is the image of the first dry chemical test paper 91 obtained by photographing the first dry chemical test paper 91 after the first dry chemical test paper 91 is added with the biological sample to be tested and after N first preset periods; M and N are preset positive integers and the two are not equal.

[0329] The test paper area 20 where the first dry chemical test paper 91 is loaded with the biological sample to be tested may be referred to as the sample loading area 21 ( FIG. 3( a ) is an example, where the first test paper area 20 on the left is the sample loading area 21 ). Specifically, the dry chemical testing device includes multiple test paper areas 20, including the sample loading area 21. In some embodiments, the sample loading component 30 simultaneously adds the same biological sample to be tested to the first and second color blocks of the first dry chemical test paper 91 transferred to the sample loading area 21 . In other words, the first and second color blocks of the first dry chemical test paper 91 are loaded with the same biological sample to be tested in the same test paper area 20. In some embodiments, the field of view of the global camera 51 can cover at least two test paper areas 20 following the sample loading area 21 along the predetermined direction. In other words, the field of view of the global camera 51 covers at least two of the multiple test paper areas 20 that the first dry chemical test paper 91 moves from the sample loading area 21 to along the predetermined direction.

[0330] The first color block and the second color block in the first dry chemical test paper 91 are added to the same test paper area 20 with the same biological sample to be tested. After the first reaction time T1, the position of the first dry chemical test paper 91 is determined and can be pre-acquired. After the second reaction time T2, the position of the first dry chemical test paper 91 is also determined and can be pre-acquired. Therefore, in some embodiments, the processor 70 determines the first color block information from the first image, including: using a preset third area in the first image as the position of the first dry chemical test paper 91 in the first image, obtaining the position of the first color block 01 on the first dry chemical test paper 91, and determining the first color block information from the first image based on the position of the first dry chemical test paper 91 in the first image and the position of the first color block 01 on the first dry chemical test paper 91. Similarly, the processor 70 determines the second color block information from the second image, including: using the fourth area preset in the second image as the position of the first dry chemical test paper 91 in the second image, obtaining the position of the second color block 02 on the first dry chemical test paper 91, and determining the second color block information from the second image based on the position of the first dry chemical test paper 91 in the second image and the position of the second color block 02 on the first dry chemical test paper 91.

[0331] (2) Global Camera + Static Scene

[0332] In some embodiments, the imaging component 50 includes a global camera 51, and the dry chemical test paper 90 placed on the supporting component 10 is stationary relative to the imaging component 50; therefore, in some embodiments, the first dry chemical test paper 91 is also stationary and non-moving. That is, when the dry chemical test paper 90 is located in a test paper area 20, the dry chemical test paper 90 will remain in this test paper area 20. Therefore, when the first dry chemical test paper 91 is in any of the at least two test paper areas covered by the shooting field of view of the global camera 51, it can be photographed to obtain a first image and a second image. For example, the first image is captured at one time and the second image is captured at another time. It can be understood that because the first dry chemical test paper 91 is stationary and non-moving on the supporting component 10, the position of the first dry chemical test paper 91 in the first image and the second image is also the same and unchanged.

[0333] Therefore, in some embodiments, the processor 70 determines the first color block information from the first image, including: obtaining the test paper area 20 where the first dry chemical test paper 91 is located; determining the position of the first dry chemical test paper 91 in the first image based on the test paper area 20 where the first dry chemical test paper 91 is located; obtaining the position of the first color block 01 on the first dry chemical test paper 91; and obtaining the first color block information from the first image based on the position of the first dry chemical test paper 91 in the first image and the position of the first color block 01 on the first dry chemical test paper 91.

[0334] Similarly, the processor 70 determines the second color block information from the second image, including: obtaining the test paper area 20 where the first dry chemical test paper 91 is located; determining the position of the first dry chemical test paper 91 in the second image based on the test paper area 20 where the first dry chemical test paper 91 is located; obtaining the position of the second color block 02 on the first dry chemical test paper 91; and determining the second color block information from the second image based on the position of the first dry chemical test paper 91 in the second image and the position of the second color block 02 on the first dry chemical test paper 91.

[0335] In some embodiments, the global camera 51 periodically photographs the first dry chemical test paper 91 at a first preset period to obtain multiple images; wherein: the first reaction time T1 is the time corresponding to M first preset periods after the first dry chemical test paper 91 is added with the biological sample to be tested, and accordingly, the first image is the image of the first dry chemical test paper 91 obtained by photographing the first dry chemical test paper 91 after the first dry chemical test paper 91 is added with the biological sample to be tested and after M first preset periods; the second reaction time T2 is the time corresponding to N first preset periods after the first dry chemical test paper 91 is added with the biological sample to be tested, and accordingly, the second image is the image of the first dry chemical test paper 91 obtained by photographing the first dry chemical test paper 91 after the first dry chemical test paper 91 is added with the biological sample to be tested and after N first preset periods; M and N are preset positive integers and the two are not equal.

[0336] In addition, in the case of (1) global camera + dynamic scene, or (2) global camera + static scene, the position of the first dry chemical test paper 91 in the image can also be determined by the test paper identification, thereby finally determining the first color block information and the second color block information. Therefore, in some embodiments, the first dry chemical test paper 91 has a test paper identification, which can be determined by image recognition to distinguish different dry chemical test papers; the processor 70 determines the first color block information from the first image, including: determining the position of the first dry chemical test paper 91 in the first image based on the test paper identification of the first dry chemical test paper 91; obtaining the position of the first color block 01 on the first dry chemical test paper 91; determining the first color block information from the first image based on the position of the first dry chemical test paper 91 in the first image and the position of the first color block 01 on the first dry chemical test paper 91; similarly, the processor 70 determines the second color block information from the second image, including: determining the position of the first dry chemical test paper 91 in the second image based on the test paper identification of the first dry chemical test paper 91; obtaining the position of the second color block 02 on the first dry chemical test paper 91; determining the second color block information from the second image based on the position of the first dry chemical test paper 91 in the second image and the position of the second color block on the first dry chemical test paper 91.

[0337] (3) Local camera + dynamic scene

[0338] In some embodiments, the imaging component 50 includes at least two local cameras 53, and the supporting component 10 includes a conveying assembly 11 and a power mechanism 13; in such an embodiment, the first dry chemical test paper 91 will be conveyed among multiple test paper areas 20, for example, from one test paper area 20 to the next test paper area 20 along a preset direction, so that when the first dry chemical test paper 91 is conveyed between the test paper areas 20 corresponding to the shooting field of view of each local camera 53, it can be photographed by the corresponding local camera 53 to obtain a first image and a second image.

[0339] Therefore, in some embodiments, the processor 70 determines the first color block information from the first image, including: determining the first test paper area 20 of the first dry chemical test paper 91 in the test paper area 20 when the biological sample to be tested is added and the first reaction time T1 has passed based on the second preset period, the first reaction time T1, and the test paper area 20 where the first dry chemical test paper 91 is located when the biological sample to be tested is added; determining the first local camera 53 from the at least two local cameras 53 included in the imaging component 50 based on the first test paper area 20; obtaining the image taken by the first local camera 53 on the first dry chemical test paper 91 after the biological sample to be tested is added and the first reaction time T1 has passed as the first image; and determining the first color block information from the first image based on the position of the first color block 01 on the first dry chemical test paper 91.

[0340] Similarly, the processor 70 determines the second color block information from the second image, including: determining the second test paper area 20 of the first dry chemical test paper 91 in the test paper area 20 after the biological sample to be tested is added to the first dry chemical test paper 91 and the second reaction time T2 has passed, based on the second preset period, the second reaction time T2, and the test paper area 20 where the first dry chemical test paper 91 is located when the biological sample to be tested is added; determining the second local camera 53 from the at least two local cameras 53 included in the imaging component 50 based on the second test paper area 20; obtaining the image taken by the second local camera 53 on the first dry chemical test paper 91 after the biological sample to be tested is added and the second reaction time T2 has passed as the second image; and determining the second color block information of the second color block 02 from the second image according to the position of the second color block 02 on the first dry chemical test paper 91.

[0341] In some embodiments, each local camera 53 synchronously and periodically photographs the dry chemical test paper in the test paper area corresponding to its respective shooting field of view at a first preset period; wherein: the first reaction time T1 is the time corresponding to M first preset periods after the first dry chemical test paper 91 is added with the biological sample to be tested, and accordingly, the first image is the image of the first dry chemical test paper 91 obtained by photographing the first dry chemical test paper 91 after the biological sample to be tested is added and after M first preset periods - it can be understood that here refers to the image obtained by one of the local cameras 53 on the first dry chemical test paper 91 after the biological sample to be tested is added and after M first preset periods. The second reaction time T2 is the time length corresponding to N first preset cycles after the biological sample to be tested is added to the first dry chemical test paper 91. Accordingly, the second image is the image of the first dry chemical test paper 91 obtained by taking the first dry chemical test paper 91 after the biological sample to be tested is added and after N first preset cycles; M and N are preset positive integers and the two are not equal - it can be understood that here it refers to the image of the first dry chemical test paper 91 obtained by one of the local cameras 53 on the first dry chemical test paper 91 after the biological sample to be tested is added and after M first preset cycles.

[0342] The test paper area 20 where the first dry chemical test paper 91 is loaded with the biological sample to be tested may be referred to as the sample loading area 21. That is, the dry chemical testing device includes multiple test paper areas 20, including the sample loading area 21. In some embodiments, the sample loading component 30 simultaneously adds the same biological sample to be tested to the first and second color blocks of the first dry chemical test paper 91 transferred to the sample loading area 21. That is, the first and second color blocks of the first dry chemical test paper 91 are loaded with the same biological sample to be tested in the same test paper area 20. In some embodiments, the test paper area 20 corresponding to the field of view of each local camera 53 includes at least the test paper area 20 following the sample loading area 21 along the preset direction. In other words, the first dry chemical test paper 91 moves from the sample loading area 21 to the multiple test paper areas 20 in sequence along the preset direction. At least two of the multiple test paper areas 20 correspond to respective local cameras 53.

[0343] The first color block and the second color block in the first dry chemical test paper 91 are added with the same biological sample to be tested in the same test paper area 20. After the first reaction time T1, the position of the first dry chemical test paper 91 is determined and can be pre-acquired. Therefore, the position or the local camera 53 corresponding to the test paper area 20 where the position is located is also determined and can be pre-acquired; similarly, the first color block and the second color block in the first dry chemical test paper 91 are added with the same biological sample to be tested in the same test paper area 20. After the second reaction time T2, the position of the first dry chemical test paper 91 is determined and can be pre-acquired. Therefore, the position or the local camera 53 corresponding to the test paper area 20 where the position is located is also determined and can be pre-acquired. Therefore, in some embodiments, the processor 70 determines the first color block information from the first image by: acquiring the first local camera 53 corresponding to the first color block 01, wherein the correspondence between the first local camera 53 and the first color block 01 is pre-established; acquiring an image captured by the first local camera 53 after the biological sample to be tested is added to the first dry chemical test strip 91 and a first reaction time T1 is elapsed as the first image; and determining the first color block information of the first color block 01 from the first image based on the position of the first color block 01 on the first dry chemical test strip 91. Similarly, the processor 70 determines the second color block information from the second image by: acquiring the second local camera 53 corresponding to the second color block 02, wherein the correspondence between the second local camera 53 and the second color block 02 is pre-established; acquiring an image captured by the second local camera 53 after the biological sample to be tested is added to the first dry chemical test strip 91 and a second reaction time T2 is elapsed as the second image; and determining the second color block information of the second color block 02 from the second image based on the position of the second color block 02 on the first dry chemical test strip 91.

[0344] (4) Local camera + static scene

[0345] In some embodiments, the imaging component 50 includes at least two local cameras 53, and the dry chemical test paper 90 placed on the supporting component 10 is stationary relative to the imaging component 50. Therefore, in some embodiments, the first dry chemical test paper 91 is also stationary and non-moving. That is, when the dry chemical test paper 90 is located in a test paper area 20, the dry chemical test paper 90 will remain in this test paper area 20. Therefore, when the first dry chemical test paper 91 is in the test paper area 20 corresponding to the shooting field of view of any local camera 53, it can be photographed by the corresponding local camera 53 to obtain a first image and a second image. For example, the same local camera 53 can be used to capture the first image at one time and the second image at another time.

[0346] Therefore, in some embodiments, the processor 70 determines the first color block information from the first image by: acquiring the test paper area 20 where the first dry chemical test paper 91 is located; determining a target local camera 53 from the at least two local cameras 53 included in the imaging component 50 based on the test paper area 20 where the first dry chemical test paper 91 is located; acquiring as the first image an image captured by the target local camera 53 after the biological sample to be tested is added to the first dry chemical test paper 91 and a first reaction time T1 elapses; and determining, from the first image, first color block information of the first color block 01 based on the position of the first color block 01 on the first dry chemical test paper 91. Similarly, the processor 70 determines the second color block information from the second image by: acquiring as the second image an image captured by the target local camera 53 after the biological sample to be tested is added to the first dry chemical test paper 91 and a second reaction time T2 elapses; and determining, from the second image, second color block information of the second color block 02 based on the position of the second color block 02 on the first dry chemical test paper 91.

[0347] In some embodiments, each local camera 53 synchronously and periodically photographs the dry chemical test paper in the test paper area corresponding to its respective shooting field of view in a first preset cycle; wherein: the first reaction time T1 is the time corresponding to M first preset cycles after the biological sample to be tested is added to the first dry chemical test paper 91, and accordingly, the first image is the image obtained by the first dry chemical test paper 91 after the biological sample to be tested is added to the first dry chemical test paper 91 and photographed after M first preset cycles - it can be understood that here refers to the image obtained by one of the local cameras 53 (the local camera 53 corresponding to the test paper area 20 where the first dry chemical test paper 91 is located) on the first dry chemical test paper 91 after the biological sample to be tested is added to the first dry chemical test paper 91 and photographed after M first preset cycles; the second reaction time T2 is the time corresponding to the first dry chemical test paper 91 The second image is an image of the first dry chemical test paper 91 taken after the biological sample to be tested is added and the biological sample to be tested is added, and correspondingly, M and N are preset positive integers and the two are not equal - it can be understood that here it refers to the image of the first dry chemical test paper 91 taken by one of the local cameras 53 (the local camera 53 corresponding to the test paper area 20 where the first dry chemical test paper 91 is located) after the biological sample to be tested is added and the first dry chemical test paper 91 is taken after the biological sample to be tested is added and the M first preset cycles.

[0348] The above descriptions of the present application are based on specific scenarios. In a dynamic scenario, the first reaction time T1 and the second reaction time T2 can also be calibrated by the test paper area 20 to which the first dry chemical test paper 91 is delivered.

[0349] Therefore, in some embodiments, referring to FIG. 18 , the dry chemical detection device includes a plurality of test paper areas 20, which include a first reaction end area 29 a preset for a first test item, and a second reaction end area 29 b preset for a second test item and different from the first reaction end area 29 a; the sample adding component 30, under the control of the processor 70, simultaneously adds the same biological sample to be tested to the first color block 01 and the second color block 02 of the first dry chemical test paper 91; the driving component 10 a is used to drive the carrying component 10 so that the first dry chemical test paper 91 to which the biological sample to be tested is added is The first reaction end area 29a0 and the second reaction end area 29b are sequentially reached. The imaging component 50 is used to photograph the first dry chemical test paper 91 after the sample adding component 30 adds the same biological sample to be tested to the first color block 01 and the second color block 02 of the first dry chemical test paper 91, thereby obtaining multiple images. The multiple images include at least a first image and a second image, wherein the first image is an image of the first dry chemical test paper 91 photographed in the first reaction end area 29a, and the second image is an image of the first dry chemical test paper 91 photographed in the second reaction end area 29b. The processor 70 determines the first color block information from the first image and calculates the test result of the first test item corresponding to the first color block 01 based on at least the first color block information. The processor 70 also determines the second color block information from the second image and calculates the test result of the second test item corresponding to the second color block 02 based on at least the second color block information.

[0350] In some embodiments, the imaging component 50 includes a global camera 51 , and the shooting field of the global camera 51 can cover the first reaction end area 29 a and the second reaction end area 29 b .

[0351] In some embodiments, the imaging component 50 includes at least a first local camera 53 and a second local camera 53 , wherein the shooting field of the first local camera 53 is the first reaction end area 29 a , and the shooting field of the second local camera 53 is the second reaction end area 29 b .

[0352] In addition, it can be understood that the driving component 10a and the carrying component 10 are two components divided according to the functions they implement, which implement the dynamic scene referred to in this article. The driving component 10a and the carrying component 10 can also be divided into the same component. Under this division, the carrying component 10 includes the above-mentioned conveying component 11 and the power mechanism 13. Therefore, the conveying component 11 is driven by the power mechanism 13 to convey the dry chemical test paper 90 thereon along a preset direction to drive the dry chemical test paper 90 to be conveyed along the preset direction in the multiple test paper areas 20 included in the dry chemical detection device. Various descriptions are also applicable to describing the driving component 10a driving the carrying component 10 so that the dry chemical test paper 90 carried by the carrying component 10 is conveyed in multiple test paper areas 20.

[0353] The above describes some of the present application in conjunction with specific scenarios. In particular, in the global camera scenario, since the shooting field of view of the global camera 51 can cover at least two test paper areas 20, the image captured by the global camera 51 at the same time can include multiple dry chemical test strips 90, so that the test results of the test items corresponding to one or more color blocks in different dry chemical test strips 90 can be obtained in the same image.

[0354] For example, in addition to the first dry chemical test paper 91, the dry chemical test paper 90 also includes a second dry chemical test paper 92. Please refer to Figure 1(c). The second dry chemical test paper 92 has at least a fourth color block 04 corresponding to the fourth test item, wherein the fourth test item corresponds to a preset fourth reaction time; the first image or the second image also has the second dry chemical test paper 92; the processor 70 also determines the fourth color block information based on the first image or the second image, and calculates the detection result of the fourth test item corresponding to the fourth color block 04 based on at least the fourth color block information. For example, the color blocks of the first dry chemical test paper 91 are added to the sample adding area 21 at time 0, and the color blocks of the second dry chemical test paper 92 are added to the sample adding area 21 at time 10s. The second reaction time T2 of the second color block 02 of the first dry chemical test paper 91 is 10s longer than the second reaction time T4 of the fourth color block 04 of the second dry chemical test paper 92. Thus, the second image contains the first dried test paper and the second dried test paper, and since the second image is taken after the second color block 02 of the first dry chemical test paper 91 is added to the biological sample to be tested and after the second reaction time T2, At this time, the fourth color block 04 of the second dry chemical test paper 92 is added with the biological sample to be tested and experiences the fourth reaction time T4. Therefore, in the second image, the second color block 02 of the first dried test paper and the fourth color block 04 of the second dried test paper have both reached their respective reaction times, so that the processor 70 can determine the second color block information of the second color block 02 and the fourth color block information of the fourth color block 04 based on the second image, and calculate the detection result of the second test item corresponding to the second color block 02 based on the second color block information, and calculate the detection result of the fourth test item corresponding to the fourth color block 04 based on the fourth color block information.

[0355] In some embodiments, the dry chemical detection device can also provide multiple processing modes. For example, as described above, the first dry chemical test paper 91 has at least two color blocks 99, each color block 99 corresponding to a test item; the sample adding component 30 is used to simultaneously add the same biological sample to be tested to the at least two color blocks 99 of the first dry chemical test paper 91 under the control of the processor 70; the imaging component 50 is used to photograph the first dry chemical test paper 91 after the sample adding component 30 adds the same biological sample to be tested to the at least two color blocks 99 of the first dry chemical test paper 91 to obtain multiple images; the processor 70 has a first processing mode and a second processing mode; in the first processing mode: the processor 70 0 selects a target image from the multiple images, and obtains the detection results of the test items corresponding to the at least two color blocks 99 in the first dry chemical test paper 91 based on the target image; in the second processing mode: the processor 70 selects at least two target images from the multiple images, and obtains the detection results of the test items corresponding to the at least two color blocks 99 in the first dry chemical test paper 91 based on the at least two target images, for example, the detection result of the test item corresponding to one color block 99 in the first dry chemical test paper 91 is obtained from one of the target images, and the detection result of the test item corresponding to another color block 99 in the first dry chemical test paper 91 is obtained from the other target image.

[0356] The above describes an example in which the sample adding component 30, under the control of the processor 70, simultaneously adds the same biological sample to be tested to various color blocks of a dry chemical test paper 90, such as the first color block 01 and the second color block 02 of the first dry chemical test paper 91; the first color block 01 and the second color block 02 of the first dry chemical test paper 91 can also be added at different times, which is explained in detail below.

[0357] In some embodiments, referring to FIG. 19 , the test paper area 20 includes a preset identical reaction end area 29 c for the first test item and the second test item; or, the first test item and the second test item are preset with the same reaction end time. In some embodiments, the sample loading component 30 is configured to add the biological sample to be tested to the first color block 01 on the first dry chemical test paper 91 at a first sample loading time, and to add the biological sample to be tested to the second color block 02 on the first dry chemical test paper 91 at a second sample loading time different from the first sample loading time; or, the test paper area 20 includes a first sample loading area 21 a and a second sample loading area 21 b different from the first sample loading area 21 a, and the sample loading component 30 is configured to add the biological sample to be tested to the first color block 01 on the first dry chemical test paper 91 at the first sample loading area 21 a, and to add the biological sample to be tested to the second color block 02 on the first dry chemical test paper 91 at the second sample loading area 21 b. The imaging component 50 is used to capture an image of the first dry chemical test paper 91 after the biological sample to be tested is added; the processor 70 is used to calculate the detection results of the first test item and the detection results of the second test item based on the image captured by the first dry chemical test paper 91 in the above-mentioned same reaction end area or at the above-mentioned same reaction end time after the biological sample to be tested is added.

[0358] Sample loading can be accomplished by two independent sample loading mechanisms 31, such as a first sample loading mechanism 31 and a second sample loading mechanism 31. In some embodiments, the first sample loading mechanism 31 is used to add the biological sample to be tested to the first color block 01 on the first dry chemical test paper 91 at a first sample loading moment, and the second sample loading mechanism 31 is used to add the biological sample to be tested to the second color block 02 on the first dry chemical test paper 91 at a second sample loading moment. In some embodiments, in a dynamic scenario, the first sample loading mechanism 31 is used to add the biological sample to be tested to the first color block 01 on the first dry chemical test paper 91 when the first dry chemical test paper 91 reaches the first sample loading area 21a; and the second sample loading mechanism 31 is used to add the biological sample to be tested to the second color block on the first dry chemical test paper 91 when the first dry chemical test paper 91 reaches the second sample loading area 21b.

[0359] Sample loading can also be accomplished by a sample loading mechanism 31. In some embodiments, the sample loading mechanism 31 is used to add the biological sample to be tested to the first color block 01 on the first dry chemical test paper 91 at a first sample loading moment, and to add the biological sample to be tested to the second color block 02 on the first dry chemical test paper 91 at a second sample loading moment. In some embodiments, in a dynamic scenario, the sample loading mechanism 31 is capable of moving relative to the test paper area 20 so as to add the biological sample to be tested to the first color block 01 on the first dry chemical test paper 91 when the first dry chemical test paper 91 reaches the first sample loading area 21a, and to add the biological sample to be tested to the second color block on the first dry chemical test paper 91 when the first dry chemical test paper 91 reaches the second sample loading area 21b.

[0360] In some embodiments of the present application, a dry chemical detection method is also disclosed. In some embodiments, the dry chemical detection method of the present application can be applied to the dry chemical detection device disclosed in the present application.

[0361] Referring to FIG. 20 , some embodiments of the dry chemical detection method include the following steps:

[0362] Step 100: Adding a biological sample to be tested to color block 99 of dry chemical test paper 90 located in test paper area 20 via sample loading component 30. Dry chemical test paper 90 includes first dry chemical test paper 91, which has at least a first color block 01 corresponding to a first test item and a second color block 02 corresponding to a second test item. The first test item has a preset first reaction time T1, and the second test item has a preset second reaction time T2 that is different from the first reaction time T1. Therefore, step 100 of adding the biological sample to be tested to color block 99 of dry chemical test paper 90 located in test paper area 20 via sample loading component 30 includes simultaneously adding the same biological sample to first color block 01 and second color block 02 of first dry chemical test paper 91.

[0363] Step 200: After the biological sample to be tested is added to the first color block 01 and the second color block 02 of the first dry chemical test paper 91 by the imaging component 50, the first dry chemical test paper 91 is photographed to obtain multiple images; wherein, the multiple images include at least a first image and a second image, the first image is an image of the first dry chemical test paper 91 obtained by photographing the first dry chemical test paper 91 after the biological sample to be tested is added and a first reaction time T1 has passed, and the second image is an image of the first dry chemical test paper 91 obtained by photographing the first dry chemical test paper 91 after the biological sample to be tested is added and a second reaction time T2 has passed.

[0364] In some embodiments, step 200 periodically photographs the first dry chemical test paper 91 at a first preset period through the imaging component to obtain the multiple images; wherein: the first reaction time T1 is the time corresponding to M first preset periods after the first dry chemical test paper 91 is added with the biological sample to be tested, and accordingly, the first image is the image of the first dry chemical test paper 91 obtained by photographing the first dry chemical test paper 91 after the first dry chemical test paper 91 is added with the biological sample to be tested and after M first preset periods; the second reaction time T2 is the time corresponding to N first preset periods after the first dry chemical test paper 91 is added with the biological sample to be tested, and accordingly, the second image is the image of the first dry chemical test paper 91 obtained by photographing the first dry chemical test paper 91 after the first dry chemical test paper 91 is added with the biological sample to be tested and after N first preset periods; M and N are preset positive integers and the two are not equal.

[0365] Step 300: Determine first color block information from the first image, and calculate the detection result of the first test item corresponding to the first color block 01 based at least on the first color block information, and determine second color block information from the second image, and calculate the detection result of the second test item corresponding to the second color block 02 based at least on the second color block information.

[0366] In some embodiments, the reaction time can also be associated with the position. Therefore, in some embodiments, step 300 determines the first color block information from the first image, including: using the image information located in the preset first area of ​​the first image as the first color block information, the preset first area corresponding to the first color block 01 of the first dry chemical test paper 91; step 300 determines the second color block information from the second image, including: using the image information located in the preset second area of ​​the second image as the second color block information, the preset second area corresponding to the second color block 02 of the first dry chemical test paper 91. In some embodiments, before determining the first color block information from the first image and determining the second color block information from the second image, step 300 also includes: obtaining the test paper type of the first dry chemical test paper 91; and obtaining the above-mentioned preset first area and the above-mentioned preset second area based on the test paper type of the first dry chemical test paper 91.

[0367] In some embodiments, the first dry chemical test paper 91 further has a third color block 03 corresponding to a third test item; in such an embodiment, step 100 simultaneously adds the same biological sample to be tested to the first color block 01, the second color block 02 and the third color block 03 of the first dry chemical test paper 91 through the sample adding component 30; and step 300 is also used to determine the third color block information from the first image and / or the second image of the first dry chemical test paper 91, and calculate the detection result of the third test item corresponding to the third color block 03 based at least on the third color block information.

[0368] In some embodiments, the dry chemical detection method further includes step one: photographing the first dry chemical test paper 91 by the imaging component 50 before the sample adding component 30 adds the biological sample to be tested to the first color block 01 and the second color block 02 of the first dry chemical test paper 91 to obtain a third image; and judging the first dry chemical test paper 91 for abnormalities based on the third image, the abnormalities include at least one of the first and second types of abnormalities; the first type of abnormality is used to characterize that the first dry chemical test paper 91 is unusable, and the second type of abnormality is used to characterize that there is a deviation in the position of at least one color block in the first dry chemical test paper 91.

[0369] In some embodiments, there are multiple test strip areas 20, and the imaging component 50 includes a global camera 51. The global camera 51 has a field of view that covers at least two of the multiple test strip areas 20. The global camera 51 is used to capture the dry chemical test strips 90 located in the at least two test strip areas. In some embodiments, the field of view of the global camera 51 can cover all of the test strip areas 20.

[0370] In some embodiments, referring to FIG. 21 , the dry chemical detection method further includes step 110: driving the carrying component 10 by the driving component 10a so that the dry chemical test paper 90 placed on the carrying component 10 is periodically transported in a plurality of test paper areas 20 along a preset direction at a second preset period, so that when the first dry chemical test paper 91 is transported in the at least two test paper areas 20 covered by the shooting field of view of the global camera 51, it can be photographed by the global camera 51 to obtain the first image and the second image; for example, the first dry chemical test paper 91 will be in the plurality of test paper areas The first dry chemical test paper 91 is transmitted in the at least two test paper areas 20 covered by the shooting field of view of the global camera 51, for example, it is transmitted from one test paper area 20 to the next test paper area 20 along a preset direction. When the first dry chemical test paper 91 is transmitted in the at least two test paper areas 20 covered by the shooting field of view of the global camera 51, it can be photographed by the global camera 51 to obtain a first image and a second image. For example, one of the at least two test paper areas 20 is photographed by the global camera 51 to obtain a first image, and the other test paper area 20 in the at least two test paper areas 20 is photographed by the global camera 51 to obtain a second image.

[0371] In some embodiments, referring to FIG. 22( a ), step 300 of determining first color block information from a first image includes the following steps:

[0372] Step 301 : Determine the position of the first dry chemical test paper 91 in the first image according to the second preset period, the first reaction time T1 and the test paper area 20 where the first dry chemical test paper 91 is located when the biological sample to be tested is added.

[0373] Step 302 : Obtain the position of the first color block 01 on the first dry chemical test paper 91 .

[0374] Step 303 : determining first color block information from the first image according to the position of the first dry chemical test paper 91 in the first image and the position of the first color block 01 on the first dry chemical test paper 91 .

[0375] Similarly, referring to FIG. 22( b ), step 300 determines the second color block information from the second image, including the following steps:

[0376] Step 304 : Determine the position of the first dry chemical test paper 91 in the second image according to the second preset period, the second reaction time T2 and the test paper area 20 where the first dry chemical test paper 91 is located when the biological sample to be tested is added.

[0377] Step 305 : Obtain the position of the second color block 02 on the first dry chemical test paper 91 .

[0378] Step 306 : Determine the second color block information from the second image according to the position of the first dry chemical test paper 91 in the second image and the position of the second color block 02 on the first dry chemical test paper 91 .

[0379] In some embodiments, the global camera 51 periodically photographs the first dry chemical test paper 91 at a first preset period to obtain multiple images; wherein: the first reaction time T1 is the time corresponding to M first preset periods after the first dry chemical test paper 91 is added with the biological sample to be tested, and accordingly, the first image is the image of the first dry chemical test paper 91 obtained by photographing the first dry chemical test paper 91 after the first dry chemical test paper 91 is added with the biological sample to be tested and after M first preset periods; the second reaction time T2 is the time corresponding to N first preset periods after the first dry chemical test paper 91 is added with the biological sample to be tested, and accordingly, the second image is the image of the first dry chemical test paper 91 obtained by photographing the first dry chemical test paper 91 after the first dry chemical test paper 91 is added with the biological sample to be tested and after N first preset periods; M and N are preset positive integers and the two are not equal.

[0380] The test strip area 20 where the first dry chemical test strip 91 is loaded with the biological sample to be tested may be referred to as the sample loading area 21 ( FIG. 3( a ) is an example, where the first test strip area 20 on the left is the sample loading area 21 ). Specifically, the dry chemical testing device includes multiple test strip areas 20, including the sample loading area 21. In some embodiments, step 100 simultaneously adds the same biological sample to be tested to the first and second color blocks of the first dry chemical test strip 91 transferred to the sample loading area 21 via the sample loading component 30. Specifically, the first and second color blocks of the first dry chemical test strip 91 are loaded with the same biological sample to be tested in the same test strip area 20. In some embodiments, the field of view of the global camera 51 can cover at least two test strip areas 20 following the sample loading area 21 along the predetermined direction. In other words, the field of view of the global camera 51 covers at least two of the multiple test strip areas 20 that the first dry chemical test strip 91 moves from the sample loading area 21 along the predetermined direction.

[0381] The first color block and the second color block in the first dry chemical test paper 91 are added to the same test paper area 20 with the same biological sample to be tested. After the first reaction time T1, the position of the first dry chemical test paper 91 is determined and can be pre-acquired. After the second reaction time T2, the position of the first dry chemical test paper 91 is also determined and can be pre-acquired. Therefore, in some embodiments, step 300 determines the first color block information from the first image, including: using a preset third area in the first image as the position of the first dry chemical test paper 91 in the first image, obtaining the position of the first color block 01 on the first dry chemical test paper 91, and determining the first color block information from the first image based on the position of the first dry chemical test paper 91 in the first image and the position of the first color block 01 on the first dry chemical test paper 91. Similarly, step 300 determines the second color block information from the second image, including: using the fourth area preset in the second image as the position of the first dry chemical test paper 91 in the second image, obtaining the position of the second color block 02 on the first dry chemical test paper 91, and determining the second color block information from the second image based on the position of the first dry chemical test paper 91 in the second image and the position of the second color block 02 on the first dry chemical test paper 91.

[0382] In some embodiments, the imaging component 50 includes a global camera 51, and the dry chemical test paper 90 placed on the supporting component 10 is stationary relative to the imaging component 50; therefore, in some embodiments, the first dry chemical test paper 91 is also stationary and non-moving. That is, when the dry chemical test paper 90 is located in a test paper area 20, the dry chemical test paper 90 will remain in this test paper area 20. Therefore, when the first dry chemical test paper 91 is in any of the at least two test paper areas covered by the shooting field of view of the global camera 51, it can be photographed to obtain a first image and a second image. For example, the first image is captured at one time and the second image is captured at another time. It can be understood that because the first dry chemical test paper 91 is stationary and non-moving on the supporting component 10, the position of the first dry chemical test paper 91 in the first image and the second image is also the same and unchanged. Therefore, in some embodiments, step 300 of determining the first color block information from the first image includes: obtaining the test paper area 20 where the first dry chemical test paper 91 is located; determining the position of the first dry chemical test paper 91 in the first image based on the test paper area 20 where the first dry chemical test paper 91 is located; obtaining the position of the first color block 01 on the first dry chemical test paper 91; and obtaining the first color block information from the first image based on the position of the first dry chemical test paper 91 in the first image and the position of the first color block 01 on the first dry chemical test paper 91. Similarly, step 300 of determining the second color block information from the second image includes: obtaining the test paper area 20 where the first dry chemical test paper 91 is located; determining the position of the first dry chemical test paper 91 in the second image based on the test paper area 20 where the first dry chemical test paper 91 is located; obtaining the position of the second color block 02 on the first dry chemical test paper 91; and determining the second color block information from the second image based on the position of the first dry chemical test paper 91 in the second image and the position of the second color block 02 on the first dry chemical test paper 91.

[0383] In addition, in the example where the imaging component 50 includes the global camera 51 , the position of the first dry chemical test paper 91 in the image can also be determined by the test paper identifier, thereby ultimately determining the first color block information and the second color block information. Therefore, in some embodiments, the first dry chemical test paper 91 has a test paper identification, which can be determined by image recognition to distinguish different dry chemical test papers; step 300 determines the first color block information from the first image, including: determining the position of the first dry chemical test paper 91 in the first image based on the test paper identification of the first dry chemical test paper 91; obtaining the position of the first color block 01 on the first dry chemical test paper 91; determining the first color block information from the first image based on the position of the first dry chemical test paper 91 in the first image and the position of the first color block 01 on the first dry chemical test paper 91; similarly, step 300 determines the second color block information from the second image, including: determining the position of the first dry chemical test paper 91 in the second image based on the test paper identification of the first dry chemical test paper 91; obtaining the position of the second color block 02 on the first dry chemical test paper 91; determining the second color block information from the second image based on the position of the first dry chemical test paper 91 in the second image and the position of the second color block on the first dry chemical test paper 91.

[0384] In some embodiments, there are multiple test paper areas 20, and the imaging component 50 includes multiple local cameras 53, for example, at least two local cameras 53. The field of view of each local camera 53 is one of the multiple test paper areas 20, and different local cameras 53 have different test paper areas 20 corresponding to their respective fields of view. Each local camera 53 is used to capture the dry chemical test paper 90 in the test paper area 20 corresponding to its respective field of view. In some embodiments, the number of local cameras 53 is the same as the number of test paper areas 20 included in the dry chemical testing device, that is, each test paper area 20 corresponds to one local camera 53.

[0385] In some embodiments, please refer to Figure 23, the dry chemical detection method also includes step 111: driving the carrying component 10 by the driving component 10a so that the dry chemical test paper 90 placed on the carrying component 10 is periodically transported in multiple test paper areas 20 along a preset direction with a second preset period, so that when the first dry chemical test paper 91 is transported between the test paper areas 20 corresponding to the shooting field of each local camera 53, it can be photographed by the corresponding local camera 53 to obtain the first image and the second image; for example, the first dry chemical test paper 91 will be transported in multiple test paper areas 20, for example, from one test paper area 20 to the next test paper area 20 along a preset direction, so that when the first dry chemical test paper 91 is transported between the test paper areas 20 corresponding to the shooting field of each local camera 53, it can be photographed by the corresponding local camera 53 to obtain the first image and the second image.

[0386] In some embodiments, referring to FIG. 24( a ), step 300 of determining first color block information from a first image includes the following steps:

[0387] Step 311: Determine the first test paper area 20 in which the first dry chemical test paper 91 is located when the biological sample to be tested is added and the first reaction time T1 has elapsed, based on the second preset period, the first reaction time T1, and the test paper area 20 where the first dry chemical test paper 91 is located when the biological sample to be tested is added.

[0388] Step 312 : Determine a first local camera 53 from the at least two local cameras 53 included in the imaging component 50 according to the first test paper area 20 .

[0389] Step 313 : Acquire an image captured by the first local camera 53 when the biological sample to be tested is added to the first dry chemical test paper 91 and after the first reaction time T1 as the first image.

[0390] Step 314 : Determine the first color block information from the first image according to the position of the first color block 01 on the first dry chemical test paper 91 .

[0391] Similarly, referring to FIG. 24( b ), step 300 of determining the second color block information from the second image includes the following steps:

[0392] Step 315: Determine the second test paper area 20 where the first dry chemical test paper 91 is located in the test paper area 20 after the biological sample to be tested is added and the second reaction time T2 has elapsed, based on the second preset cycle, the second reaction time T2, and the test paper area 20 where the first dry chemical test paper 91 is located when the biological sample to be tested is added.

[0393] Step 316 : Determine a second local camera 53 from the at least two local cameras 53 included in the imaging component 50 according to the second test paper area 20 .

[0394] Step 317 : Acquire an image captured by the second local camera 53 after the biological sample to be tested is added to the first dry chemical test paper 91 and after the second reaction time T2 as the second image.

[0395] Step 318 : Determine the second color block information of the second color block 02 from the second image according to the position of the second color block 02 on the first dry chemical test paper 91 .

[0396] In some embodiments, each local camera 53 synchronously and periodically photographs the dry chemical test paper in the test paper area corresponding to its respective shooting field of view at a first preset period; wherein: the first reaction time T1 is the time corresponding to M first preset periods after the first dry chemical test paper 91 is added with the biological sample to be tested, and accordingly, the first image is the image of the first dry chemical test paper 91 obtained by photographing the first dry chemical test paper 91 after the biological sample to be tested is added and after M first preset periods - it can be understood that here refers to the image obtained by one of the local cameras 53 on the first dry chemical test paper 91 after the biological sample to be tested is added and after M first preset periods. The second reaction time T2 is the time length corresponding to N first preset cycles after the biological sample to be tested is added to the first dry chemical test paper 91. Accordingly, the second image is the image of the first dry chemical test paper 91 obtained by taking the first dry chemical test paper 91 after the biological sample to be tested is added and after N first preset cycles; M and N are preset positive integers and the two are not equal - it can be understood that here it refers to the image of the first dry chemical test paper 91 obtained by one of the local cameras 53 on the first dry chemical test paper 91 after the biological sample to be tested is added and after M first preset cycles.

[0397] The test paper area 20 where the first dry chemical test paper 91 is loaded with the biological sample to be tested may be referred to as the sample loading area 21. That is, the dry chemical testing device includes multiple test paper areas 20, including the sample loading area 21. In some embodiments, step 100 simultaneously adds the same biological sample to be tested to the first and second color blocks of the first dry chemical test paper 91 transferred to the sample loading area 21 via the sample loading component 30. That is, the first and second color blocks of the first dry chemical test paper 91 are loaded with the same biological sample to be tested in the same test paper area 20. In some embodiments, the test paper area 20 corresponding to the field of view of each local camera 53 includes at least the test paper area 20 following the sample loading area 21 along the preset direction. In other words, the first dry chemical test paper 91 moves from the sample loading area 21 to the multiple test paper areas 20 in sequence along the preset direction. At least two of the multiple test paper areas 20 correspond to respective local cameras 53.

[0398] The first color block and the second color block in the first dry chemical test paper 91 are added with the same biological sample to be tested in the same test paper area 20. After the first reaction time T1, the position of the first dry chemical test paper 91 is determined and can be pre-acquired. Therefore, the position or the local camera 53 corresponding to the test paper area 20 where the position is located is also determined and can be pre-acquired; similarly, the first color block and the second color block in the first dry chemical test paper 91 are added with the same biological sample to be tested in the same test paper area 20. After the second reaction time T2, the position of the first dry chemical test paper 91 is determined and can be pre-acquired. Therefore, the position or the local camera 53 corresponding to the test paper area 20 where the position is located is also determined and can be pre-acquired. Therefore, in some embodiments, step 300 of determining the first color block information from the first image includes: obtaining the first local camera 53 corresponding to the first color block 01, wherein the correspondence between the first local camera 53 and the first color block 01 is pre-established; obtaining an image captured by the first local camera 53 after the biological sample to be tested is added to the first dry chemical test strip 91 and a first reaction time T1 is elapsed as the first image; and determining the first color block information of the first color block 01 from the first image based on the position of the first color block 01 on the first dry chemical test strip 91. Similarly, step 300 of determining the second color block information from the second image includes: obtaining the second local camera 53 corresponding to the second color block 02, wherein the correspondence between the second local camera 53 and the second color block 02 is pre-established; obtaining an image captured by the second local camera 53 after the biological sample to be tested is added to the first dry chemical test strip 91 and a second reaction time T2 is elapsed as the second image; and determining the second color block information of the second color block 02 from the second image based on the position of the second color block 02 on the first dry chemical test strip 91.

[0399] In some embodiments, the imaging component 50 includes multiple local cameras 53, and the dry chemical test paper 90 placed on the supporting component 10 is relatively stationary with respect to the imaging component 50. Therefore, in some embodiments, the first dry chemical test paper 91 is also stationary and non-moving. That is, when the dry chemical test paper 90 is located in a test paper area 20, the dry chemical test paper 90 remains in this test paper area 20. Therefore, when the first dry chemical test paper 91 is in the test paper area 20 corresponding to the shooting field of view of any local camera 53, it can be photographed by the corresponding local camera 53 to obtain a first image and a second image. For example, the same local camera 53 can be used to capture the first image at one time and the second image at another time.

[0400] Therefore, in some embodiments, step 300 of determining the first color block information from the first image includes: obtaining the test paper area 20 where the first dry chemical test paper 91 is located; determining a target local camera 53 from the at least two local cameras 53 included in the imaging component 50 based on the test paper area 20 where the first dry chemical test paper 91 is located; obtaining an image captured by the target local camera 53 after the biological sample to be tested is added to the first dry chemical test paper 91 and a first reaction time T1 has elapsed as the first image; and determining first color block information of the first color block 01 from the first image based on the position of the first color block 01 on the first dry chemical test paper 91. Similarly, step 300 of determining the second color block information from the second image includes: obtaining an image captured by the target local camera 53 after the biological sample to be tested is added to the first dry chemical test paper 91 and a second reaction time T2 has elapsed as the second image; and determining second color block information of the second color block 02 from the second image based on the position of the second color block 02 on the first dry chemical test paper 91.

[0401] In some embodiments, each local camera 53 synchronously and periodically photographs the dry chemical test paper in the test paper area corresponding to its respective shooting field of view in a first preset cycle; wherein: the first reaction time T1 is the time corresponding to M first preset cycles after the biological sample to be tested is added to the first dry chemical test paper 91, and accordingly, the first image is the image of the first dry chemical test paper 91 obtained by photographing the first dry chemical test paper 91 after the biological sample to be tested is added and after M first preset cycles - it can be understood that here refers to the image obtained by one of the local cameras 53 (the local camera 53 corresponding to the test paper area 20 where the first dry chemical test paper 91 is located) after the biological sample to be tested is added and after M first preset cycles. The second reaction time T2 is the time length corresponding to N first preset cycles after the biological sample to be tested is added to the first dry chemical test paper 91. Accordingly, the second image is the image of the first dry chemical test paper 91 obtained by taking the first dry chemical test paper 91 after the biological sample to be tested is added and after N first preset cycles; M and N are preset positive integers and are not equal - it can be understood that here it refers to the image of the first dry chemical test paper 91 obtained by one of the local cameras 53 (the local camera 53 corresponding to the test paper area 20 where the first dry chemical test paper 91 is located) after the biological sample to be tested is added to the first dry chemical test paper 91 and after M first preset cycles.

[0402] The above is a brief description of the dry chemical testing method. In the example where the imaging component 50 includes a global camera 51, since the field of view of the global camera 51 can cover at least two test strip areas 20, the image captured by the global camera 51 at the same time can include multiple dry chemical test strips 90, thereby enabling the detection results of test items corresponding to one or more color blocks on different dry chemical test strips 90 to be obtained in the same image.

[0403] For example, in addition to the first dry chemical test paper 91, the dry chemical test paper 90 also includes a second dry chemical test paper 92, and the second dry chemical test paper 92 has at least a fourth color block 04 corresponding to the fourth test item, wherein the fourth test item corresponds to a preset fourth reaction time; the first image or the second image also has the second dry chemical test paper 92; the dry chemical detection method also includes a step: determining the fourth color block information based on the first image or the second image, and calculating the detection result of the fourth test item corresponding to the fourth color block 04 based on at least the fourth color block information. For example, the color blocks of the first dry chemical test paper 91 are added to the sample adding area 21 at time 0, and the color blocks of the second dry chemical test paper 92 are added to the sample adding area 21 at time 10s. The second reaction time T2 of the second color block 02 of the first dry chemical test paper 91 is 10s longer than the second reaction time T4 of the fourth color block 04 of the second dry chemical test paper 92. Thus, the second image contains the first dried test paper and the second dried test paper, and since the second image is taken after the second color block 02 of the first dry chemical test paper 91 is added to the biological sample to be tested and after the second reaction time T2, At this time, the fourth color block 04 of the second dry chemical test paper 92 is added with the biological sample to be tested and experiences the fourth reaction time T4. Therefore, in the second image, the second color block 02 of the first dried test paper and the fourth color block 04 of the second dried test paper have both reached their respective reaction times, so that the processor 70 can determine the second color block information of the second color block 02 and the fourth color block information of the fourth color block 04 based on the second image, and calculate the detection result of the second test item corresponding to the second color block 02 based on the second color block information, and calculate the detection result of the fourth test item corresponding to the fourth color block 04 based on the fourth color block information.

[0404] It should be noted that the serial numbers assigned to the color blocks herein, such as "first," "second," "third," and "fourth," are used solely to distinguish the objects being described and do not connote any order or technical meaning. The fact that second dry chemical test paper 92 has a fourth color block 04 does not necessarily mean that second dry chemical test paper 92 also has a first color block 01, a second color block 02, and a third color block 03. The fact that second dry chemical test paper 92 has a fourth color block 04 herein refers to a color block 99 on second dry chemical test paper 92, and is numbered fourth color block 04 to distinguish it from the first color block 01, the second color block 02, and the third color block 03 of the first dry chemical test paper 91 described previously.

[0405] In a dynamic scenario, the first reaction time T1 and the second reaction time T2 can also be calibrated by the test paper area 20 to which the first dry chemical test paper 91 is delivered. Therefore, referring to FIG. 25 , the dry chemical test in some embodiments includes the following steps:

[0406] Step 120: The carrying component 10 is driven by the driving component 10a so that the dry chemical test paper placed on the carrying component 10 is transported in a preset direction among the multiple test paper areas 20; the dry chemical test paper 90 includes a first dry chemical test paper 91, and the first dry chemical test paper 91 has at least a first color block 01 corresponding to the first test item and a second color block 02 corresponding to the second test item; the multiple test paper areas 20 include a first reaction end area 29a preset for the first test item, and a second reaction end area 29b preset for the second test item and different from the first reaction end area 29a.

[0407] Step 130 : The same biological sample to be tested is added to the first color block 01 and the second color block 02 of the first dry chemical test paper 91 simultaneously through the sample adding component 30 .

[0408] Step 210: After the sample adding component 30 adds the same biological sample to be tested to the first color block 01 and the second color block 02 of the first dry chemical test paper 91, the first dry chemical test paper 91 is photographed by the imaging component 50 to obtain multiple images; wherein, the multiple images include at least a first image and a second image, the first image is an image of the first dry chemical test paper 91 photographed in the first reaction end area 29a, and the second image is an image of the first dry chemical test paper 91 photographed in the second reaction end area 29b.

[0409] In some embodiments, the imaging component 50 includes a global camera 51 , and the shooting field of the global camera 51 can cover the first reaction end area 29 a and the second reaction end area 29 b .

[0410] In some embodiments, the imaging component 50 includes at least a first local camera 53 and a second local camera 53 , wherein the shooting field of the first local camera 53 is the first reaction end area 29 a , and the shooting field of the second local camera 53 is the second reaction end area 29 b .

[0411] Step 300: Determine first color block information from the first image, and calculate the detection result of the first test item corresponding to the first color block 01 based at least on the first color block information, and determine second color block information from the second image, and calculate the detection result of the second test item corresponding to the second color block 02 based at least on the second color block information.

[0412] Referring to FIG. 26 , dry chemical testing in some embodiments includes the following steps:

[0413] Step 140: Add the biological sample to be tested to the color block 99 of the dry chemical test paper 90 located in the test paper area 20 through the sample adding component 30; the dry chemical test paper 90 includes a first dry chemical test paper 91, and the first dry chemical test paper 91 has at least a first color block 01 corresponding to the first test item and a second color block 02 corresponding to the second test item; the test paper area 20 includes the same reaction end area 29c preset for the first test item and the second test item; or, the first test item and the second test item are preset with the same reaction end time.

[0414] In some embodiments, step 140 of adding the biological sample to be tested to the color block 99 of the dry chemical test paper 90 located in the test paper area 20 through the sample adding component 30 includes: adding the biological sample to be tested to the first color block 01 on the first dry chemical test paper 91 through the sample adding component 30 at a first sample adding time, and adding the biological sample to be tested to the second color block 02 on the first dry chemical test paper 91 at a second sample adding time different from the first sample adding time.

[0415] In some embodiments, the test paper area 20 includes a first sample adding area 21a and a second sample adding area 21b different from the first sample adding area 21a. In step 140, the sample adding component 30 adds the biological sample to be tested to the first color block 01 on the first dry chemical test paper 91 in the first sample adding area 21a, and adds the biological sample to be tested to the second color block 02 on the first dry chemical test paper 91 in the second sample adding area 21b.

[0416] Step 220 : Using the imaging component 50 , an image of the first dry chemical test paper 91 after the biological sample to be tested is added is captured.

[0417] Step 310: Calculate the test results of the first test item and the second test item based on the image captured by the first dry chemical test paper 91 in the same reaction end area 29 c or at the same reaction end time after the biological sample to be tested is added.

[0418] In some embodiments, multiple processing modes may also be provided. Referring to FIG. 27 , in some embodiments, dry chemical detection has a first processing mode and a second processing mode, and the dry chemical detection includes the following steps:

[0419] Step 150: adding the biological sample to be tested to the color block 99 of the dry chemical test paper 90 located in the test paper area 20 through the sample adding component 30; the dry chemical test paper 90 includes a first dry chemical test paper 91, and the first dry chemical test paper 91 has at least two color blocks 99, such as a first color block 01 and a second color block 02, each color block 99 corresponding to a test item; step 150 of adding the biological sample to be tested to the color block 99 of the dry chemical test paper 90 located in the test paper area 20 through the sample adding component 30 includes: simultaneously adding the same biological sample to be tested to the at least two color blocks 99 of the first dry chemical test paper 91.

[0420] Step 230 : After the sample adding component 30 adds the same biological sample to be tested to the at least two color blocks 99 of the first dry chemical test paper 91 , the imaging component 50 photographs the first dry chemical test paper 91 to obtain multiple images.

[0421] In the first processing mode: Step 320 selects a target image from the plurality of images, and obtains detection results of test items corresponding to at least two color blocks in the first dry chemical test paper based on the target image;

[0422] In the second processing mode: step 330 selects at least two target images from the multiple images, and obtains the detection results of the test items corresponding to at least two color blocks in the first dry chemical test paper based on the at least two target images. For example, the detection result of the test item corresponding to a color block 99 in the first dry chemical test paper 91 is obtained from one of the target images, and the detection result of the test item corresponding to another color block 99 in the first dry chemical test paper 91 is obtained from another target image.

[0423] The third embodiment

[0424] In some embodiments, for the images captured by the imaging component 50 at the same shooting moment, dry chemical testing can be performed based on the test paper status of each dry chemical test paper in the image (for example, waiting for sample addition status, sample addition completion status, reaction process status or reaction completion status, etc.), such as abnormal judgment of test paper position, abnormal sample addition judgment, high-value sample judgment and calculation of test results, etc., so as to make full use of the image obtained from each shooting.

[0425] Therefore, in some embodiments, there is at least one target moment such that the image captured by the imaging component 50 at the target moment includes at least two dry chemical test strips 90, and the at least two dry chemical test strips 90 are in any one of the following test strip states: a state waiting for sample addition, a state where sample addition is completed, a state in the process of reaction, and a state where reaction is completed. In some embodiments, the at least two dry chemical test strips 90 in the image captured by the imaging component 50 at the target moment have different test strip states; for example, the image captured at the target moment includes at least two of the following: a dry chemical test strip 90 in a state waiting for sample addition, a dry chemical test strip 90 in a state where sample addition is completed, a dry chemical test strip 90 in a state in the process of reaction, and a dry chemical test strip 90 in a state where reaction is completed.

[0426] In some embodiments, the imaging component 50 includes a global camera 51, and the shooting field of the global camera 51 can cover at least two test paper areas 20; the global camera 51 is used to shoot the dry chemical test paper 90 located in the test paper area 20 covered by its shooting field of view, so that an image taken at the target moment contains at least two dry chemical test papers 90 in different test paper states.

[0427] In some embodiments, the imaging component 50 includes at least two local cameras 53, and the shooting field of view of each local camera 53 is any one test paper area 20 of the at least two test paper areas 20, and the test paper areas 20 corresponding to the shooting fields of different local cameras 53 are different; the above-mentioned at least two local cameras 53 are used to shoot the dry chemical test paper 90 in the test paper area 20 covered by their shooting fields, so that the multiple images taken at the target moment have at least two dry chemical test papers 90 in different test paper states.

[0428] The following is a detailed description of each status.

[0429] The dry chemical test paper 90 that is in or is in a state of waiting for sample addition means that the dry chemical test paper 90 needs to be added with a biological sample to be tested but is still in a state of not having been added with the biological sample to be tested, and is waiting for the biological sample to be added.

[0430] The dry chemical test paper 90 having or being in the sample addition completion state refers to the state of the dry chemical test paper 90 after the biological sample to be tested is added. Generally, the period of time within a preset time (for example, within a few seconds) after the dry chemical test paper 90 is added with the biological sample to be tested can be referred to as the dry chemical test paper 90 being in the sample addition completion state.

[0431] The dry chemical test paper 90 having or being in a reaction-end state refers to a state in which the reaction between the dry chemical test paper 90 and the reagent has been completed or substantially completed after the biological sample to be tested is added thereto. Correspondingly, the dry chemical test paper 90 having or being in a reaction process state refers to the state during the period between the sample addition completion state and the reaction completion state, that is, the state in which the reaction between the dry chemical test paper 90 and the reagent has not been completed after the biological sample to be tested is added thereto, and the two are still in a reacting state.

[0432] It is understandable that all color blocks 99 on the dry chemical test paper 90 are generally loaded with the biological sample to be tested at one time, which is referred to as simultaneous loading in this article. In other scenarios, the color blocks on the dry chemical test paper 90 can also be loaded with samples at different times. In this case, the dry chemical test paper 90 may have multiple states at the same time. For example, the dry chemical test paper 90 has color blocks A and B, and these two color blocks are loaded with samples at different times. Initially, the dry chemical test paper 90 is in a waiting state for loading. When the biological sample to be tested is added to color block A, the dry chemical test paper 90 is in a state where loading has been completed because the biological sample to be tested has been added to color block A. At the same time, since color block B is still waiting for the biological sample to be tested, the dry chemical test paper 90 is also in a state where loading has been completed. When the biological sample to be tested is added to color block B, the dry chemical test paper 90 is in a state where loading has been completed because the biological sample to be tested has been added to color block B. At this time, the reaction is still ongoing in color block A, so the dry chemical test paper 90 is also in a state where the reaction is in progress. After a while, when the reaction in color block A is essentially complete, the reaction in color block B may still be ongoing. Therefore, the dry chemical test paper 90 is in both a completed state and a progressing state. Therefore, each state of the dry chemical test paper 90 is essentially determined by the specific state of the color block.

[0433] For the images captured by the imaging component 50 at the same shooting time, dry chemical detection can be performed according to the test paper status of each dry chemical test paper in the image (such as waiting for sample addition status, sample addition completion status, reaction process status or reaction completion status, etc.). A few examples are given below.

[0434] In some embodiments, when an image captured at a target time contains a dry chemical test strip 90 in a state waiting for sample loading, the processor 70 determines image information of the dry chemical test strip 90 based on the image captured at the target time, and performs an abnormality determination on the dry chemical test strip 90 based on the image information of the dry chemical test strip 90. The abnormality includes at least one of a first type of abnormality and a second type of abnormality; the first type of abnormality indicates that the dry chemical test strip is unusable, and the second type of abnormality indicates that there is a deviation in the position of at least one color block in the dry chemical test strip. Further description of the first and second types of abnormalities can be found elsewhere in this document and will not be repeated here.

[0435] In some embodiments, when the image taken at the target moment contains a dry chemical test paper 90 in a sample loading end state, the processor 70 determines the image information of the dry chemical test paper 90 based on the image taken at the target moment, and determines whether there is a sample loading abnormality in the dry chemical test paper based on the image information of the dry chemical test paper 90; if there is a sample loading abnormality, a sample loading abnormality prompt message is output.

[0436] In some embodiments, sample loading anomalies include but are not limited to abnormal position of the sample loading component 30, insufficient sample volume and / or abnormal liquid pipelines, which are discussed below in detail.

[0437] The abnormal position of the sample adding component 30 refers to the offset of the position of the sample adding component 30 along the length direction of the dry chemical test paper 90 (i.e., the axial direction) or along the conveying direction of the supporting component 10 (i.e., the preset direction mentioned in this article). The result is similar to the result caused by the second type of abnormality of the dry chemical test paper 90, that is, the sample cannot be added to the center position of the color block 99. Therefore, the method of determining whether there is a sample adding abnormality is similar to the method of determining whether there is a second type of abnormality.

[0438] However, when the sample volume is insufficient and / or the liquid pipeline (i.e., the liquid pipeline connected to the sample adding component 30, used to clean the sample adding component 30 and / or assist in sample aspiration and addition) is abnormal, it may result in no sample being added to a part of the color block 99 or insufficient sample being added, so the color of the color block 99 will not change as expected.

[0439] By judging the above abnormal situations, abnormal situations can be discovered as soon as possible, thereby further improving the reliability and efficiency of the system and reducing the manual workload.

[0440] In some embodiments, when the image captured at the target moment contains a dry chemical test paper 90 in a sample loading end state, the processor 70 determines the image information of the dry chemical test paper 90 based on the image captured at the target moment, and judges the concentration level of the biological sample to be tested added to the dry chemical test paper 90 based on the image information of the dry chemical test paper 90, and based on the determined concentration level, determines the cleaning mode of the sample loading component 30 after the biological sample to be tested is added to the dry chemical test paper 90 from at least two cleaning modes with different intensities.

[0441] For example, the concentration level can be divided into a high-value level (i.e., the sample is a high-value sample) and a non-high-value level (i.e., the sample is a non-high-value sample). When it is determined that the biological sample to be tested is a high-value sample, a cleaning mode with a greater cleaning intensity is selected from two cleaning modes of different intensities as the cleaning mode of the sample adding component 30 after the dry chemical test paper 90 is added with the biological sample to be tested, so as to ensure that there is no carryover contamination.

[0442] In some embodiments, when an image captured at a target time contains a dry chemical test strip in a reaction process state, the processor 70 determines image information of the dry chemical test strip 90 based on the image captured at the target time, and also determines image information of the dry chemical test strip 90 based on an image captured at another time different from the target time. Based on the image information of the dry chemical test strip at the target time and the image information at the other time, the processor 70 calculates the test result corresponding to the test item of at least one color block of the dry chemical test strip. In the image captured at the other time, the dry chemical test strip 90 is in a reaction process state or a reaction completion state. That is, for the dry chemical test strip 90, at least one color block 99 is in a reaction process state at the target time, and at the other target time, the color block 99 is in a reaction completion state or a reaction process state. In this case, based on the images at the at least two time points, the processor 70 determines the color block information of the color block 99 at different time points, thereby calculating the test result of the test item corresponding to the color block 99. In some embodiments, the specific calculation process and scheme can be found in the first category of embodiments herein and will not be repeated here.

[0443] In some embodiments, when the image captured at the target time contains a dry chemical test strip 90 in a reaction-completed state, the processor 70 determines image information of the dry chemical test strip 90 based on the image captured at the target time, and calculates the test result of the test item corresponding to at least one color block 99 of the dry chemical test strip 90 based at least on the image information of the dry chemical test strip 90. For example, for the dry chemical test strip 90, at least one color block 99 is in a reaction-processed state at the target time. Therefore, the processor 70 can calculate the test result of the test item corresponding to the color block 99 based on the color block information of the color block 99 at the target time. In some embodiments, the specific calculation process and scheme can be found in some of the schemes described in the second category of embodiments herein and will not be repeated here. In some embodiments, for the dry chemical test paper 90, at least one color block 99 thereon is in a reaction end state at a target moment, and at another target moment, the color block 99 is in a reaction process state. At this time, the color block information of the color block 99 at different moments is determined based on the images of these at least two moments, thereby calculating the detection results of the test items corresponding to the color block 99; in some embodiments, the specific calculation process and scheme can be referred to the first category of embodiments in this article, and will not be repeated here.

[0444] Some embodiments further disclose a dry chemical testing method, as described above with respect to FIG. 6 . In step 2300 , images captured by the imaging component 50 at at least one capture moment are acquired, and dry chemical testing is performed based on the images captured at the at least one capture moment. In some embodiments, there is at least one target moment such that the image captured by the imaging component 50 at the target moment includes at least two dry chemical test strips 90 , each of which is in any one of the following test strip states: a state waiting for sample loading, a state where sample loading is completed, a state in the process of reaction, and a state where reaction is completed. In some embodiments, the at least two dry chemical test strips 90 in the image captured by the imaging component 50 at the target moment have different test strip states; for example, the image captured at the target moment includes at least two of the following: a dry chemical test strip 90 in the state waiting for sample loading, a dry chemical test strip 90 in the state where sample loading is completed, a dry chemical test strip 90 in the process of reaction, and a dry chemical test strip 90 in the state where reaction is completed.

[0445] In some embodiments, step 2300 acquires an image captured by the imaging component 50 at at least one capturing moment, and performs dry chemical detection based on the image captured at at least one capturing moment, including at least two of the following.

[0446] In some embodiments, if the image captured at the target time contains a dry chemical test strip 90 in a state waiting for sample loading, step 2300 determines image information of the dry chemical test strip 90 based on the image captured at the target time, and performs an abnormality determination on the dry chemical test strip 90 based on the image information of the dry chemical test strip 90. The abnormality includes at least one of a first type of abnormality and a second type of abnormality; the first type of abnormality indicates that the dry chemical test strip is unusable, and the second type of abnormality indicates that the position of at least one color block in the dry chemical test strip is deviated. Further description of the first and second types of abnormalities can be found elsewhere in this document and will not be repeated here.

[0447] In some embodiments, when the image taken at the target moment contains a dry chemical test paper 90 in a sample loading end state, step 2300 determines the image information of the dry chemical test paper 90 based on the image taken at the target moment, and judges whether there is a sample loading abnormality in the dry chemical test paper based on the image information of the dry chemical test paper 90; if there is a sample loading abnormality, a sample loading abnormality prompt message is output.

[0448] In some embodiments, sample loading anomalies include but are not limited to abnormal position of the sample loading component 30, insufficient sample volume and / or abnormal liquid pipelines, which are discussed below in detail.

[0449] The abnormal position of the sample adding component 30 refers to the offset of the position of the sample adding component 30 along the length direction of the dry chemical test paper 90 (i.e., the axial direction) or along the conveying direction of the supporting component 10 (i.e., the preset direction mentioned in this article). The result is similar to the result caused by the second type of abnormality of the dry chemical test paper 90, that is, the sample cannot be added to the center position of the color block 99. Therefore, the method of determining whether there is a sample adding abnormality is similar to the method of determining whether there is a second type of abnormality.

[0450] However, when the sample volume is insufficient and / or the liquid pipeline (i.e., the liquid pipeline connected to the sample adding component 30, used to clean the sample adding component 30 and / or assist in sample aspiration and addition) is abnormal, it may result in no sample being added to a part of the color block 99 or insufficient sample being added, so the color of the color block 99 will not change as expected.

[0451] By judging the above abnormal situations, abnormal situations can be discovered as soon as possible, thereby further improving the reliability and efficiency of the system and reducing the manual workload.

[0452] In some embodiments, when the image captured at the target moment contains a dry chemical test paper 90 in a sample loading end state, step 2300 determines the image information of the dry chemical test paper 90 based on the image captured at the target moment, and judges the concentration level of the biological sample to be tested added to the dry chemical test paper 90 based on the image information of the dry chemical test paper 90, and based on the determined concentration level, determines the cleaning mode of the sample loading component 30 after the biological sample to be tested is added to the dry chemical test paper 90 from at least two cleaning modes with different intensities.

[0453] For example, the concentration level can be divided into a high-value level (i.e., the sample is a high-value sample) and a non-high-value level (i.e., the sample is a non-high-value sample). When it is determined that the biological sample to be tested is a high-value sample, a cleaning mode with a greater cleaning intensity is selected from two cleaning modes of different intensities as the cleaning mode of the sample adding component 30 after the dry chemical test paper 90 is added with the biological sample to be tested, so as to ensure that there is no carryover contamination.

[0454] In some embodiments, when an image captured at a target time contains a dry chemical test strip in a reaction process state, step 2300 determines image information of the dry chemical test strip 90 based on the image captured at the target time, and also determines image information of the dry chemical test strip 90 based on an image captured at another time different from the target time. Based on the image information of the dry chemical test strip at the target time and the image information at the other time, the test result corresponding to the test item of at least one color block of the dry chemical test strip is calculated. In this case, the dry chemical test strip 90 is in a reaction process state or a reaction completion state in the image captured at the other time. That is, for the dry chemical test strip 90, at least one color block 99 is in a reaction process state at the target time, and at the other target time, the color block 99 is in a reaction completion state or a reaction process state. In this case, based on the images at these at least two times, the color block information of the color block 99 at different times is determined, thereby calculating the test result of the test item corresponding to the color block 99. In some embodiments, the specific calculation process and scheme can be found in the first category of embodiments herein and will not be repeated here.

[0455] In some embodiments, when the image captured at the target time contains a dry chemical test strip 90 in a reaction-completed state, step 2300 determines image information of the dry chemical test strip 90 based on the image captured at the target time, and calculates the test result of the test item corresponding to at least one color block 99 of the dry chemical test strip 90 based at least on the image information of the dry chemical test strip 90. For example, for the dry chemical test strip 90, at least one color block 99 is in a reaction-processed state at the target time. Therefore, step 2300 may calculate the test result of the test item corresponding to the color block 99 based on the color block information of the color block 99 at the target time. In some embodiments, the specific calculation process and scheme can be found in some of the schemes described in the second category of embodiments herein and will not be repeated here. In some embodiments, for the dry chemical test paper 90, at least one color block 99 thereon is in a reaction end state at a target moment, and at another target moment, the color block 99 is in a reaction process state. At this time, the color block information of the color block 99 at different moments is determined based on the images of these at least two moments, thereby calculating the detection results of the test items corresponding to the color block 99; in some embodiments, the specific calculation process and scheme can be referred to the first category of embodiments in this article, and will not be repeated here.

[0456] This document is described with reference to various exemplary embodiments. However, those skilled in the art will recognize that changes and modifications may be made to the exemplary embodiments without departing from the scope of this document. For example, the various operational steps and components used to perform the operational steps may be implemented in different ways (e.g., one or more steps may be deleted, modified, or incorporated into other steps) depending on the specific application or considering any number of cost functions associated with the operation of the system.

[0457] In addition, as will be understood by those skilled in the art, the principles of this document may be embodied in a computer program product on a computer-readable storage medium pre-installed with computer-readable program code. Any tangible, non-transitory computer-readable storage medium may be used, including magnetic storage devices (hard disks, floppy disks, etc.), optical storage devices (CD-ROMs, DVDs, Blu-ray discs, etc.), flash memory, and / or the like. These computer program instructions may be loaded onto a general-purpose computer, a special-purpose computer, or other programmable data processing device to form a machine, such that the instructions executed on the computer or other programmable data processing device may generate a device that implements a specified function. These computer program instructions may also be stored in a computer-readable memory, which may instruct the computer or other programmable data processing device to operate in a specific manner, such that the instructions stored in the computer-readable memory may form an article of manufacture, including an implementation device that implements the specified function. The computer program instructions may also be loaded onto a computer or other programmable data processing device, thereby causing the computer or other programmable device to execute a series of operational steps to produce a computer-implemented process, such that the instructions executed on the computer or other programmable device may provide the steps for implementing the specified function.

[0458] Although the principles of this invention have been shown in various embodiments, many modifications of structure, arrangement, proportion, elements, materials and components that are particularly suitable for specific environments and operational requirements can be used without departing from the principles and scope of this invention. The above modifications and other changes or amendments are intended to be included within the scope of this invention.

[0459] The foregoing detailed description has been described with reference to various embodiments. However, those skilled in the art will recognize that various modifications and changes can be made without departing from the scope of this disclosure. Therefore, the present disclosure will be considered in an illustrative rather than a restrictive sense, and all such modifications will be included within its scope. Similarly, the advantages, other advantages, and solutions to problems of various embodiments have been described above. However, the benefits, advantages, solutions to problems, and any elements that produce these or make them more specific should not be interpreted as critical, required, or essential. The term "comprising" and any other variations used herein are all non-exclusive inclusions, so that a process, method, article, or device that includes a list of elements includes not only these elements, but also other elements that are not explicitly listed or that do not belong to the process, method, system, article, or device. In addition, the term "coupled" and any other variations used herein refer to physical connections, electrical connections, magnetic connections, optical connections, communication connections, functional connections, and / or any other connections.

[0460] Those skilled in the art will recognize that many changes can be made to the details of the above embodiments without departing from the basic principles of the invention. Therefore, the scope of the invention should be determined from the following claims.

Claims

1. A dry chemical detection device, characterized in that: include: Multiple test strip areas, a carrying component, a sample adding component, an imaging component and a processor; The carrying component is used to place the dry chemical test paper located in the test paper area, and the dry chemical test paper has one or more color blocks, each color block corresponding to a test item; The sample adding component is used to add the biological sample to be tested to the color block of the dry chemical test paper; The imaging component is used to photograph the dry chemical test strips located in the plurality of test strip areas; the imaging component has a photographing field of view that can cover at least two of the test strip areas, so that the dry chemical test strips in the test strip areas within its photographing field of view can be photographed at the same photographing time to obtain an image containing the plurality of dry chemical test strips; The processor is used to obtain the image captured by the imaging component at at least one capturing moment, and perform dry chemical detection based on the image captured at the at least one capturing moment.

2. The dry chemical detection device according to claim 1, characterized in that: There is at least one target moment, so that the imaging component has at least two dry chemical test papers in the image captured at the target moment, and the at least two dry chemical test papers have any one of the following test paper states: waiting for sample addition state, sample addition end state, reaction process state and reaction end state.

3. The dry chemical detection device according to claim 2, characterized in that: The at least two dry chemical test papers in the image captured by the imaging component at the target time have different test paper states.

4. The dry chemical detection device according to claim 3, characterized in that: The imaging component includes a global camera, the shooting field of the global camera can cover the at least two test paper areas; the global camera is used to photograph the dry chemical test paper located in the test paper area covered by its shooting field of view, so that an image captured at the target time contains at least two dry chemical test papers in different test paper states; or, The imaging component includes at least two local cameras, the shooting field of each local camera is any one of the at least two test paper areas, and the test paper areas corresponding to the shooting fields of different local cameras are different; the at least two local cameras are used to shoot the dry chemical test paper in the test paper area covered by their shooting fields, so that the multiple images taken at the target time have at least two dry chemical test papers in different test paper states.

5. The dry chemical detection device according to any one of claims 2 to 4, characterized in that: The processor performs dry chemical detection based on the image captured at the at least one moment, including at least two of the following: In a case where the image captured at the target time contains a dry chemical test paper in the waiting state for sample loading, the processor determines image information of the dry chemical test paper based on the image captured at the target time, and performs an abnormality judgment on the dry chemical test paper based on the image information of the dry chemical test paper, wherein the abnormality includes at least one of a first type of abnormality and a second type of abnormality; the first type of abnormality is used to indicate that the dry chemical test paper is unusable, and the second type of abnormality is used to indicate that there is a deviation in the position of at least one color block in the dry chemical test paper; In a case where the image captured at the target time contains a dry chemical test paper in the sample loading end state, the processor determines image information of the dry chemical test paper based on the image captured at the target time, and determines whether there is a sample loading abnormality on the dry chemical test paper based on the image information of the dry chemical test paper; If there is a sample addition abnormality, the sample addition abnormality prompt message will be output; In a case where the image captured at the target moment contains the dry chemical test paper in the sample loading end state, the processor determines image information of the dry chemical test paper based on the image captured at the target moment, and determines a concentration level of the biological sample to be tested added to the dry chemical test paper based on the image information of the dry chemical test paper, and determines, based on the determined concentration level, a cleaning mode for the sample loading component after the biological sample to be tested is added to the dry chemical test paper from at least two cleaning modes of different intensities; In a case where the image captured at the target moment contains a dry chemical test paper in the reaction process state, the processor determines image information of the dry chemical test paper based on the image captured at the target moment, and determines image information of the dry chemical test paper based on an image captured at another moment different from the target moment, and calculates a test result of a test item corresponding to at least one color block of the dry chemical test paper based on the image information of the dry chemical test paper at the target moment and the image information at the another moment; wherein the dry chemical test paper is in the reaction process state or the reaction end state in the image captured at the another moment; In a case where the image captured at the target moment contains a dry chemical test paper in the reaction end state, the processor determines the image information of the dry chemical test paper based on the image captured at the target moment, and calculates the detection result of the test item corresponding to at least one color block of the dry chemical test paper based at least on the image information of the dry chemical test paper.

6. The dry chemical detection device according to claim 1, characterized in that: The dry chemical test paper includes a first dry chemical test paper having one or more color blocks, each corresponding to a test item; the image captured at the at least one moment includes at least a first image and a second image captured by the imaging component of the first dry chemical test paper after the sample adding component adds the biological sample to be tested to the target color block of the first dry chemical test paper, wherein the first image and the second image are captured at different times; The processor performs dry chemical detection according to the image captured at the at least one moment, including: The color block information of the target color block of the first dry chemical test paper at different times is determined at least according to the first image and the second image, and the detection result of the test item corresponding to the target color block is calculated based on the color block information of the target color block at different times.

7. The dry chemical detection device according to claim 6, characterized in that: The processor determines color block information of a target color block of the first dry chemical test paper at different times based on at least the first image and the second image, including: Using image information located in a preset first area in the first image as first color block information of the target color block, the preset first area corresponds to the target color block of the first dry chemical test paper; Image information located in a preset second area in the second image is used as second color block information of the target color block, and the preset second area corresponds to the target color block of the first dry chemical test paper.

8. The dry chemical detection device according to claim 6, characterized in that: The processor determines, at least according to the first image and the second image, color block information of a target color block of the first dry chemical test paper at different times, and calculates a detection result of a test item corresponding to the target color block based on the color block information of the target color block at different times, including: Calculating color feature differences between color block information of a target color block in the first dry chemical test paper in images captured at different times to determine the first image, such that a color feature difference between the color block information of the target color block in the first image and the color block information of the target color block in at least one image captured before the first image is less than a set threshold; determining the second image, where a shooting time of the second image is before a shooting time of the first image; Determine first color block information of the target color block from the first image, and determine second color block information of the target color block from the second image, and calculate a detection result of a test item corresponding to the target color block based at least on the first color block information and the second color block information.

9. The dry chemical detection device according to claim 8, characterized in that: The imaging component includes a global camera, the shooting field of the global camera can cover at least two test paper areas among the multiple test paper areas, and the global camera is used to shoot the dry chemical test paper located in the at least two test paper areas.

10. The dry chemical detection device according to claim 9, characterized in that: The carrying component includes a conveying assembly and a power mechanism, and the conveying assembly is driven by the power mechanism to periodically convey the dry chemical test paper thereon along a preset direction at a second preset period, so as to drive the dry chemical test paper to be conveyed along the preset direction among the plurality of test paper areas, so that when the first dry chemical test paper is conveyed in the at least two test paper areas covered by the shooting field of view of the global camera, it can be captured by the global camera to obtain the first image and the second image; The processor determines the first image, including: For an image at any capturing moment, determining a position of the first dry chemical test paper in the image at the arbitrary capturing moment based on the second preset period, the arbitrary capturing moment, and the test paper area where the target color block of the first dry chemical test paper is located when the biological sample to be tested is added, and obtaining color block information of the target color block in the first dry chemical test paper from the image at the arbitrary capturing moment based on the position of the first dry chemical test paper in the image at the arbitrary capturing moment and the position of the target color block on the first dry chemical test paper, thereby calculating a color feature difference between the color block information of the target color block in the first dry chemical test paper in images at different capturing moments, to determine the first image; The processor determines first color block information of the target color block from the first image, including: determining a position of the first dry chemical test paper in the first image according to the second preset period, the time when the first image was captured, and the test paper area where the first dry chemical test paper was located when the biological sample to be tested was added; determining first color block information of the target color block from the first image according to the position of the first dry chemical test paper in the first image and the position of the target color block on the first dry chemical test paper; The processor determines second color block information of the target color block from the second image, including: determining a position of the first dry chemical test paper in the second image according to the second preset period, the capturing time in the second image, and the test paper area where the first dry chemical test paper is located when the biological sample to be tested is added; Second color block information of the target color block is determined from the second image according to the position of the first dry chemical test paper in the second image and the position of the target color block on the first dry chemical test paper.

11. The dry chemical detection device according to claim 9, characterized in that: The dry chemical test paper placed on the carrying component is relatively stationary with respect to the imaging component, so that when the first dry chemical test paper is within any one of the at least two test paper areas covered by the shooting field of view of the global camera, it can be photographed to obtain the first image and the second image; The processor determines the first image, including: Obtaining the test paper area where the first dry chemical test paper is located; For an image at any shooting moment, determining a position of the first dry chemical test paper in the image at the arbitrary shooting moment based on the test paper area where the first dry chemical test paper is located, and obtaining color block information of the target color block in the first dry chemical test paper from the image at the arbitrary shooting moment based on the position of the first dry chemical test paper in the image at the arbitrary shooting moment and the position of the target color block on the first dry chemical test paper, thereby calculating a color feature difference between the color block information of the target color block in the first dry chemical test paper in images at different shooting moments to determine the first image; The processor determines first color block information of the target color block from the first image, including: determining first color block information of the target color block from the first image according to the test paper area where the first dry chemical test paper is located and the position of the target color block on the first dry chemical test paper; The processor determines second color block information of the target color block from the second image, including: Second color block information of the target color block is determined from the second image according to the test paper area where the first dry chemical test paper is located and the position of the target color block on the first dry chemical test paper.

12. The dry chemical detection device according to claim 9, characterized in that: The first dry chemical test paper has a test paper mark; The processor determines the first image, including: For an image at any shooting moment, determining a position of the first dry chemical test paper in the image at any shooting moment according to the test paper identifier of the first dry chemical test paper; Obtaining a position of the target color block on the first dry chemical test paper; Obtaining color block information of the target color block in the first dry chemical test paper from the image at the arbitrary shooting moment according to the position of the first dry chemical test paper in the image at the arbitrary shooting moment and the position of the target color block on the first dry chemical test paper, thereby calculating a color feature difference between the color block information of the target color block in the first dry chemical test paper in images at different shooting moments to determine the first image; The processor determines first color block information of the target color block from the first image, including: determining a position of the first dry chemical test paper in the first image according to the test paper identifier of the first dry chemical test paper; determining first color block information of the target color block from the first image according to the position of the first dry chemical test paper in the first image and the position of the target color block on the first dry chemical test paper; The processor determines second color block information of the target color block from the second image, including: determining a position of the first dry chemical test paper in the second image according to the test paper identifier of the first dry chemical test paper; Second color block information of the target color block is determined from the second image according to the position of the first dry chemical test paper in the second image and the position of the target color block on the first dry chemical test paper.

13. The dry chemical detection device according to claim 8, characterized in that: The imaging component includes at least two local cameras, the shooting field of each local camera is one test paper area among the multiple test paper areas, and the test paper areas corresponding to the shooting fields of different local cameras are different; each local camera is used to shoot the dry chemical test paper on the test paper area corresponding to its own shooting field of view.

14. The dry chemical detection device according to claim 13, characterized in that: The carrying component includes a conveying assembly and a power mechanism. The conveying assembly, driven by the power mechanism, periodically conveys the dry chemical test paper thereon along a preset direction at a second preset period, thereby driving the dry chemical test paper to be conveyed along the preset direction among the plurality of test paper areas. As a result, when the first dry chemical test paper is conveyed between the test paper areas corresponding to the shooting fields of the local cameras, it can be captured by the corresponding local cameras to obtain the first image and the second image. The processor determines the first image, including: For any shooting moment, determining the test paper area where the first dry chemical test paper is located at the any shooting moment based on the second preset period, the any shooting moment, and the test paper area where the target color block of the first dry chemical test paper is located when the biological sample to be tested is added; Determining a corresponding local camera from the at least two local cameras included in the imaging component based on the test paper area where the first dry chemical test paper is located at the arbitrary shooting moment, acquiring an image captured by the local camera at the arbitrary shooting moment, and determining color block information of a target color block in the first dry chemical test paper from the image based on the position of the target color block on the first dry chemical test paper, thereby calculating a color feature difference between the color block information of the target color block in the first dry chemical test paper in images at different shooting moments to determine the first image; The processor determines first color block information of the target color block from the first image, including: determining first color block information of the target color block from the first image according to a position of the target color block on the first dry chemical test paper; The processor determines second color block information of the target color block from the second image, including: According to the position of the target color block on the first dry chemical test paper, second color block information of the target color block is determined from the second image.

15. The dry chemical detection device according to claim 13, wherein: The dry chemical test paper placed on the carrying component is relatively stationary with respect to the imaging component, so that when the first dry chemical test paper is in the test paper area corresponding to the shooting field of view of any local camera, it can be photographed by the corresponding local camera to obtain the first image and the second image; The processor determines the first image, including: Obtaining the test paper area where the first dry chemical test paper is located; determining a target local camera from the at least two local cameras included in the imaging component according to the test paper area where the first dry chemical test paper is located; For an image at any capture time, determining color block information of the target color block from the image of the target local camera at the any capture time based on the position of the target color block on the first dry chemical test paper, thereby calculating color feature differences between the color block information of the target color block on the first dry chemical test paper in images at different capture times to determine the first image; The processor determines first color block information of the target color block from the first image, including: determining first color block information of the target color block from the first image according to a position of the target color block on the first dry chemical test paper; The processor determines second color block information of the target color block from the second image, including: According to the position of the target color block on the first dry chemical test paper, second color block information of the target color block is determined from the second image.

16. The dry chemical detection device according to claim 6, characterized in that: The processor determines, at least according to the first image and the second image, color block information of a target color block of the first dry chemical test paper at different times, and calculates a detection result of a test item corresponding to the target color block based on the color block information of the target color block at different times, including: Determining the first image, where the first image is an image captured by the imaging component after the target color block of the first dry chemical test paper is added with the biological sample to be tested and after a set reaction time; determining the second image, where a shooting time of the second image is before a shooting time of the first image; Determine first color block information of the target color block from the first image, and determine second color block information of the target color block from the second image, and calculate a detection result of a test item corresponding to the target color block based at least on the first color block information and the second color block information.

17. The dry chemical detection device according to claim 16, characterized in that: The imaging component includes a global camera, the shooting field of the global camera can cover at least two test paper areas among the multiple test paper areas, and the global camera is used to shoot the dry chemical test paper located in the at least two test paper areas.

18. The dry chemical detection device according to claim 17, wherein: The carrying component includes a conveying assembly and a power mechanism, and the conveying assembly is driven by the power mechanism to periodically convey the dry chemical test paper thereon along a preset direction at a second preset period, so as to drive the dry chemical test paper to be conveyed along the preset direction among the plurality of test paper areas, so that when the first dry chemical test paper is conveyed in the at least two test paper areas covered by the shooting field of view of the global camera, it can be captured by the global camera to obtain the first image and the second image; The processor determines first color block information of the target color block from the first image, including: determining a position of the first dry chemical test paper in the first image based on the second preset period, the set reaction time, and a test paper area where the target color block of the first dry chemical test paper is located when the biological sample to be tested is added; Obtaining a position of the target color block on the first dry chemical test paper; determining first color block information of the target color block from the first image according to the position of the first dry chemical test paper in the first image and the position of the target color block on the first dry chemical test paper; The processor determines second color block information of the target color block from the second image, including: determining a position of the first dry chemical test paper in the second image based on the second preset period, the time when the second image is captured, and the test paper area where the target color block of the first dry chemical test paper is located when the biological sample to be tested is added; Second color block information of the target color block is determined from the second image according to the position of the first dry chemical test paper in the second image and the position of the target color block on the first dry chemical test paper.

19. The dry chemical detection device according to claim 17, wherein: The dry chemical test paper placed on the carrying component is relatively stationary with respect to the imaging component, so that when the first dry chemical test paper is within any one of the at least two test paper areas covered by the shooting field of view of the global camera, it can be photographed to obtain the first image and the second image; The processor determines first color block information of the target color block from the first image, including: Obtaining the test paper area where the first dry chemical test paper is located; determining a position of the first dry chemical test paper in the first image according to a test paper area where the first dry chemical test paper is located; Obtaining a position of the target color block on the first dry chemical test paper; determining first color block information of the target color block from the first image according to the position of the first dry chemical test paper in the first image and the position of the target color block on the first dry chemical test paper; The processor determines second color block information of the target color block from the second image, including: Obtaining the test paper area where the first dry chemical test paper is located; determining a position of the first dry chemical test paper in the second image according to a test paper area where the first dry chemical test paper is located; Obtaining a position of the target color block on the first dry chemical test paper; Second color block information of the target color block is determined from the second image according to the position of the first dry chemical test paper in the second image and the position of the target color block on the first dry chemical test paper.

20. The dry chemical detection device according to claim 17, wherein: The first dry chemical test paper has a test paper mark; The processor determines first color block information of the target color block from the first image, including: determining a position of the first dry chemical test paper in the first image according to the test paper identifier of the first dry chemical test paper; Obtaining a position of the target color block on the first dry chemical test paper; determining the first color block information from the first image according to the position of the first dry chemical test paper in the first image and the position of the target color block on the first dry chemical test paper; The processor determines second color block information of the target color block from the second image, including: determining a position of the first dry chemical test paper in the second image according to the test paper identifier of the first dry chemical test paper; Obtaining a position of the target color block on the first dry chemical test paper; The second color block information is determined from the second image according to the position of the first dry chemical test paper in the second image and the position of the target color block on the first dry chemical test paper.

21. The dry chemical detection device according to claim 16, wherein: The dry chemical detection device further includes a plurality of test paper areas for placing dry chemical test papers; and The imaging component includes at least two local cameras, the shooting field of each local camera is one test paper area among the multiple test paper areas, and the test paper areas corresponding to the shooting fields of different local cameras are different; each local camera is used to shoot the dry chemical test paper on the test paper area corresponding to its own shooting field of view.

22. The dry chemical detection device according to claim 21, characterized in that: The carrying component includes a conveying assembly and a power mechanism. The conveying assembly, driven by the power mechanism, periodically conveys the dry chemical test paper thereon along a preset direction at a second preset period, thereby driving the dry chemical test paper to be conveyed along the preset direction among the plurality of test paper areas. As a result, when the first dry chemical test paper is conveyed between the test paper areas corresponding to the shooting fields of the local cameras, it can be captured by the corresponding local cameras to obtain the first image and the second image. The processor determines first color block information of the target color block from the first image, including: determining, based on the second preset period, the set reaction time, and the test paper area where the target color block of the first dry chemical test paper is located when the biological sample to be tested is added, a first test paper area where the first dry chemical test paper is located in the test paper area after the target color block of the first dry chemical test paper is added to the biological sample to be tested and the set reaction time has elapsed; determining a first local camera from the at least two local cameras included in the imaging component according to the first test paper area; acquiring an image captured by the first local camera at the target color block of the first dry chemical test paper after the biological sample to be tested is added and the set reaction time has elapsed as the first image; determining first color block information of the target color block from the first image according to a position of the target color block on the first dry chemical test paper; The processor determines second color block information of the target color block from the second image, including: determining, based on the second preset period, the capture time of the second image, and the test paper area where the target color block of the first dry chemical test paper is located when the biological sample to be tested is added, a second test paper area where the first dry chemical test paper is located within the test paper area at the capture time of the second image; determining a second local camera from the at least two local cameras included in the imaging component according to the second test paper area; acquiring an image captured by the second local camera at the capturing time of the second image as the second image; According to the position of the target color block on the first dry chemical test paper, second color block information of the target color block is determined from the second image.

23. The dry chemical detection device according to claim 21, wherein: The dry chemical test paper placed on the carrying component is relatively stationary with respect to the imaging component, so that when the first dry chemical test paper is in the test paper area corresponding to the shooting field of view of any local camera, it can be photographed by the corresponding local camera to obtain the first image and the second image; The processor determines first color block information of the target color block from the first image, including: Obtaining the test paper area where the first dry chemical test paper is located; determining a target local camera from the at least two local cameras included in the imaging component according to the test paper area where the first dry chemical test paper is located; Acquire an image captured by the target local camera at the target color block of the first dry chemical test paper after the biological sample to be tested is added and the set reaction time elapses as the first image; determining first color block information of the target color block from the first image according to a position of the target color block on the first dry chemical test paper; The processor determines second color block information of the target color block from the second image, including: Acquire an image captured by the target local camera at the capturing time of the second image as the second image; According to the position of the target color block on the first dry chemical test paper, second color block information of the target color block is determined from the second image.

24. The dry chemical detection device according to any one of claims 8 to 23, characterized in that: The processor calculates, based at least on the first color block information and the second color block information, a detection result of a test item corresponding to the target color block, including: Obtaining an actual color curve of the target color block changing over time based at least on the first color block information and the second color block information; comparing the actual color curve with a plurality of standard color curves, wherein the plurality of standard color curves are pre-established corresponding to standard test results of the test items corresponding to the target color block; The detection result of the test item corresponding to the target color block is determined according to the comparison result.

25. The dry chemical detection device according to claim 6, characterized in that: The processor determines, at least according to the first image and the second image, color block information of a target color block of the first dry chemical test paper at different times, and calculates a detection result of a test item corresponding to the target color block based on the color block information of the target color block at different times, including: Starting from an image captured at a Kth capture time of the first dry chemical test strip, generating an actual color curve of a target color block of the first dry chemical test strip as it changes over time based on the image captured at the capture time and a portion or all of images of the first dry chemical test strip captured before the capture time, and matching the actual color curve with a plurality of standard color curves, the plurality of standard color curves being pre-established corresponding to standard test results of test items corresponding to the target color block; When there is no standard color curve among the plurality of standard color curves whose similarity to the actual color curve is greater than a target threshold, the matching fails: continuing to generate the actual color change of the target color block of the first dry chemical test paper and performing the matching; When there is a standard color curve among the multiple standard color curves whose similarity with the actual color curve is greater than the target threshold, the match is successful: the standard test result corresponding to the standard color curve among the multiple standard color curves whose similarity with the actual color curve is greater than the target threshold is determined as the test result of the test item corresponding to the target color block, and the generation of the actual color change of the target color block of the first dry chemical test paper and the matching are stopped.

26. The dry chemical detection device according to claim 25, characterized in that: The imaging component includes a global camera, the shooting field of the global camera can cover at least two test paper areas among the multiple test paper areas, and the global camera is used to shoot the dry chemical test paper in the at least two test paper areas; The carrying component includes a conveying assembly and a power mechanism, and the conveying assembly is driven by the power mechanism to periodically convey the dry chemical test paper thereon along a preset direction at a second preset period, so as to drive the dry chemical test paper to be conveyed along the preset direction among the plurality of test paper areas, so that the first dry chemical test paper can be photographed by the global camera when being conveyed in the at least two test paper areas covered by the shooting field of view of the global camera; The processor generates, starting from an image captured at a Kth capturing moment of the first dry chemical test paper, an actual color change of a target color block of the first dry chemical test paper based on the image captured at the capturing moment and a portion or all of images of the first dry chemical test paper captured before the capturing moment, including: For the image at any i-th capturing moment, determining the position of the first dry chemical test paper in the image at the i-th capturing moment based on the second preset period, the i-th capturing moment, and the test paper region where the target color block of the first dry chemical test paper is located when the biological sample to be tested is added; Obtaining a position of the target color block on the first dry chemical test paper; According to the position of the first dry chemical test paper in the image at the i-th shooting moment and the position of the target color block on the first dry chemical test paper, the color block information of the target color block is determined from the image at the i-th shooting moment.

27. The dry chemical detection device according to claim 25, characterized in that: The imaging component includes at least two local cameras, each of which has a field of view corresponding to one of the multiple test paper areas, and each of the local cameras has a field of view corresponding to a different test paper area; each local camera is used to photograph the dry chemical test paper on the test paper area corresponding to its field of view; The carrying component includes a conveying assembly and a power mechanism. The conveying assembly, driven by the power mechanism, periodically conveys the dry chemical test paper thereon along a preset direction at a second preset period, so as to drive the dry chemical test paper to be conveyed along the preset direction among the plurality of test paper areas, so that when the first dry chemical test paper is conveyed between the test paper areas corresponding to the shooting fields of the local cameras, it can be photographed by the corresponding local cameras; The processor generates, starting from an image captured at a Kth capturing moment of the first dry chemical test paper, an actual color change of a target color block of the first dry chemical test paper based on the image captured at the capturing moment and a portion or all of images of the first dry chemical test paper captured before the capturing moment, including: For any i-th capturing moment, determining the test paper region where the first dry chemical test paper is located at the i-th capturing moment based on the second preset period, the i-th capturing moment, and the test paper region where the target color block of the first dry chemical test paper is located when the biological sample to be tested is added; According to the test paper area where the first dry chemical test paper is located at the i-th shooting moment, the corresponding local camera is determined from the at least two local cameras included in the imaging component, and the image captured by the local camera at the i-th shooting moment is obtained, and according to the position of the target color block on the first dry chemical test paper, the color block information of the target color block is determined from the image at the i-th shooting moment.

28. The dry chemical detection device according to claim 6, characterized in that: The imaging component includes a global camera, the shooting field of the global camera can cover at least two test paper areas among the multiple test paper areas, and the global camera is used to shoot the dry chemical test paper located in the at least two test paper areas; The dry chemical test paper further includes a second dry chemical test paper having one or more color blocks, each color block corresponding to a test item; The global camera is used to capture the first image and the fourth image, where the first image and the fourth image are captured at different times; the first image and the fourth image both contain the second dry chemical test paper; the processor further determines, based on at least the first image and the fourth image, color block information of a color block of the second dry chemical test paper at different times, and calculates a test result of a test item corresponding to the color block based on the color block information at different times; or, The global camera is used to shoot to obtain the second image and the fourth image, and the shooting time of the second image and the fourth image is different; the processor also determines the color block information of a color block of the second dry chemical test paper at different times based on at least the second image and the fourth image, and calculates the detection result of the test item corresponding to the color block based on the color block information of the color block at different times.

29. The dry chemical detection device according to claim 1, wherein: The dry chemical test paper includes a first dry chemical test paper, the first dry chemical test paper having at least a first color block corresponding to a first test item and a second color block corresponding to a second test item, wherein the first test item corresponds to a preset first reaction time, and the second test item corresponds to a preset second reaction time different from the first reaction time; The sample adding component is further used to add the same biological sample to be tested to the first color block and the second color block of the first dry chemical test paper at the same time under the control of the processor; The image captured at the at least one moment includes at least a first image and a second image, the first image being an image of the first dry chemical test paper captured after the biological sample to be tested is added and the first reaction time has elapsed, and the second image being an image of the first dry chemical test paper captured after the biological sample to be tested is added and the second reaction time has elapsed; The processor performs dry chemical detection according to the image captured at the at least one moment, including: determining first color block information from the first image, and calculating a detection result of the first test item corresponding to the first color block based at least on the first color block information, and, Second color block information is determined from the second image, and a detection result of the second test item corresponding to the second color block is calculated based at least on the second color block information.

30. The dry chemical detection device according to claim 29, characterized in that: The processor determines first color block information from the first image, including: using image information located in a preset first area in the first image as the first color block information, the preset first area corresponding to the first color block of the first dry chemical test paper; The processor determines second color block information from the second image, including: using image information located in a preset second area in the second image as the second color block information, where the preset second area corresponds to the second color block of the first dry chemical test paper.

31. The dry chemical detection device according to claim 29, characterized in that: The imaging component includes a global camera, the shooting field of the global camera can cover at least two test paper areas among the multiple test paper areas, and the global camera is used to shoot the dry chemical test paper located in the at least two test paper areas.

32. The dry chemical detection device according to claim 31, characterized in that: The carrying component includes a conveying assembly and a power mechanism, and the conveying assembly is driven by the power mechanism to periodically convey the dry chemical test paper thereon along a preset direction at a second preset period, so as to drive the dry chemical test paper to be conveyed along the preset direction among the plurality of test paper areas, so that when the first dry chemical test paper is conveyed in the at least two test paper areas covered by the shooting field of view of the global camera, it can be captured by the global camera to obtain the first image and the second image; The processor determines first color block information from the first image, including: determining a position of the first dry chemical test paper in the first image according to the second preset period, the first reaction time, and a test paper area where the first dry chemical test paper is located when the biological sample to be tested is added; Obtaining a position of the first color block on the first dry chemical test paper; determining the first color block information from the first image according to the position of the first dry chemical test paper in the first image and the position of the first color block on the first dry chemical test paper; and The processor determines second color block information from the second image, including: determining a position of the first dry chemical test paper in the second image according to the second preset period, the second reaction time, and the test paper area where the first dry chemical test paper is located when the biological sample to be tested is added; Obtaining a position of the second color block on the first dry chemical test paper; The second color block information is determined from the second image according to the position of the first dry chemical test paper in the second image and the position of the second color block on the first dry chemical test paper.

33. The dry chemical detection device according to claim 31 or 32, characterized in that: The multiple test paper areas include a sample addition area; The sample adding component is further used to simultaneously add the same biological sample to be tested to the first color block and the second color block in the first dry chemical test paper conveyed to the sample adding area; The shooting field of view of the global camera can at least cover at least two test paper areas behind the sample addition area along the preset direction.

34. The dry chemical detection device according to claim 33, characterized in that: The processor determines first color block information from the first image, including: using a third area preset in the first image as the position of the first dry chemical test paper in the first image; Obtaining a position of the first color block on the first dry chemical test paper; determining the first color block information from the first image according to the position of the first dry chemical test paper in the first image and the position of the first color block on the first dry chemical test paper; The processor determines second color block information from the second image, including: using a fourth area preset in the second image as the position of the first dry chemical test paper in the second image; Obtaining a position of the second color block on the first dry chemical test paper; The second color block information is determined from the second image according to the position of the first dry chemical test paper in the second image and the position of the second color block on the first dry chemical test paper.

35. The dry chemical detection device according to claim 31, characterized in that: The dry chemical test paper placed on the carrying component is relatively stationary with respect to the imaging component, so that when the first dry chemical test paper is within any one of the at least two test paper areas covered by the shooting field of view of the global camera, it can be photographed to obtain the first image and the second image; The processor determines first color block information from the first image, including: Obtaining the test paper area where the first dry chemical test paper is located; determining a position of the first dry chemical test paper in the first image according to a test paper area where the first dry chemical test paper is located; Obtaining a position of the first color block on the first dry chemical test paper; determining first color block information of the first color block from the first image according to the position of the first dry chemical test paper in the first image and the position of the first color block on the first dry chemical test paper; The processor determines second color block information from the second image, including: Obtaining the test paper area where the first dry chemical test paper is located; determining a position of the first dry chemical test paper in the second image according to a test paper area where the first dry chemical test paper is located; Obtaining a position of the second color block on the first dry chemical test paper; Second color block information of the second color block is determined from the second image according to the position of the first dry chemical test paper in the second image and the position of the second color block on the first dry chemical test paper.

36. The dry chemical detection device according to claim 31, characterized in that The first dry chemical test paper has a test paper mark; The processor determines first color block information from the first image, including: determining a position of the first dry chemical test paper in the first image according to the test paper identifier of the first dry chemical test paper; Obtaining a position of the first color block on the first dry chemical test paper; determining the first color block information from the first image according to the position of the first dry chemical test paper in the first image and the position of the first color block on the first dry chemical test paper; The processor determines second color block information from the second image, including: determining a position of the first dry chemical test paper in the second image according to the test paper identifier of the first dry chemical test paper; Obtaining a position of the second color block on the first dry chemical test paper; The second color block information is determined from the second image according to the position of the first dry chemical test paper in the second image and the position of the second color block on the first dry chemical test paper.

37. The dry chemical detection device according to claim 29, characterized in that: The imaging component includes at least two local cameras, the shooting field of each local camera is one test paper area among the multiple test paper areas, and the test paper areas corresponding to the shooting fields of different local cameras are different; each local camera is used to shoot the dry chemical test paper in the test paper area corresponding to its own shooting field of view.

38. The dry chemical detection device according to claim 37, characterized in that: The carrying component includes a conveying assembly and a power mechanism. The conveying assembly, driven by the power mechanism, periodically conveys the dry chemical test paper thereon along a preset direction at a second preset period, thereby driving the dry chemical test paper to be conveyed along the preset direction among the plurality of test paper areas. As a result, when the first dry chemical test paper is conveyed between the test paper areas corresponding to the shooting fields of the local cameras, it can be captured by the corresponding local cameras to obtain the first image and the second image. The processor determines first color block information from the first image, including: determining, based on the second preset period, the first reaction time, and the test paper area where the first dry chemical test paper is located when the biological sample to be tested is added, a first test paper area where the first dry chemical test paper is located within the test paper area after the biological sample to be tested is added and the first reaction time has elapsed; determining a first local camera from the at least two local cameras included in the imaging component according to the first test paper area; acquiring an image captured by the first local camera when the biological sample to be tested is added to the first dry chemical test paper and the first reaction time elapses as the first image; determining first color block information of the first color block from the first image according to a position of the first color block on the first dry chemical test paper; The processor determines second color block information from the second image, including: determining, based on the second preset period, the second reaction time, and the test paper area where the first dry chemical test paper is located when the biological sample to be tested is added, a second test paper area where the first dry chemical test paper is located within the test paper area after the biological sample to be tested is added and the second reaction time has elapsed; determining a second local camera from the at least two local cameras included in the imaging component according to the second test paper area; acquiring an image captured by the second local camera when the first dry chemical test paper is added with the biological sample to be tested and undergoes the second reaction time as the second image; Second color block information of the second color block is determined from the second image according to the position of the second color block on the first dry chemical test paper.

39. The dry chemical detection device according to claim 37 or 38, characterized in that: The multiple test paper areas include a sample addition area; The sample adding component is further used to simultaneously add the same biological sample to be tested to the first color block and the second color block in the first dry chemical test paper conveyed to the sample adding area; The test paper area corresponding to the shooting field of view of each local camera at least includes the test paper area behind the sample adding area along the preset direction.

40. The dry chemical detection device according to claim 39, characterized in that: The processor determines first color block information from the first image, including: Acquire a first local camera corresponding to the first color block, wherein a correspondence between the first local camera and the first color block is established in advance; acquiring an image captured by the first local camera after the biological sample to be tested is added to the first dry chemical test paper and the first reaction time elapses as the first image; determining first color block information of the first color block from the first image according to a position of the first color block on the first dry chemical test paper; The processor determines second color block information from the second image, including: Acquire a second local camera corresponding to the second color block, wherein a correspondence between the second local camera and the second color block is established in advance; acquiring an image captured by the second local camera after the biological sample to be tested is added to the first dry chemical test paper and the second reaction time elapses as the second image; Second color block information of the second color block is determined from the second image according to the position of the second color block on the first dry chemical test paper.

41. The dry chemical detection device according to claim 37, characterized in that: The dry chemical test paper placed on the carrying component is relatively stationary with respect to the imaging component, so that when the first dry chemical test paper is in the test paper area corresponding to the shooting field of view of any local camera, it can be photographed by the corresponding local camera to obtain the first image and the second image; The processor determines first color block information from the first image, including: Obtaining the test paper area where the first dry chemical test paper is located; determining a target local camera from the at least two local cameras included in the imaging component according to the test paper area where the first dry chemical test paper is located; Acquire an image captured by the target local camera after the biological sample to be tested is added to the first dry chemical test paper and the first reaction time elapses as the first image; determining first color block information of the first color block from the first image according to a position of the first color block on the first dry chemical test paper; The processor determines second color block information from the second image, including: Acquire an image captured by the target local camera when the biological sample to be tested is added to the first dry chemical test paper and the second reaction time elapses as the second image; Second color block information of the second color block is determined from the second image according to the position of the second color block on the first dry chemical test paper.

42. The dry chemical detection device according to claim 29, characterized in that The imaging component includes a global camera, the shooting field of the global camera can cover at least two test paper areas among the multiple test paper areas, and the global camera is used to shoot the dry chemical test paper located in the at least two test paper areas; The dry chemical test paper further includes a second dry chemical test paper, wherein the second dry chemical test paper has at least a fourth color block corresponding to a fourth test item, wherein the fourth test item corresponds to a preset fourth reaction time; The first image or the second image also contains the second dry chemical test paper; the processor also determines fourth color block information based on the first image or the second image, and calculates the detection result of the fourth test item corresponding to the fourth color block based at least on the fourth color block information.

43. The dry chemical detection device according to claim 1, characterized in that: The biological sample to be tested includes a urine sample, a body fluid sample and / or a vaginal secretion.

44. A dry chemical detection method, characterized in that include: The dry chemical test paper located in any one of the plurality of test paper areas is supported by a supporting component; wherein the dry chemical test paper has one or more color blocks, each color block corresponding to a test item; adding the biological sample to be tested to the color block of the dry chemical test paper through a sample adding component; photographing the dry chemical test strips located in the plurality of test strip areas using an imaging component; wherein the imaging component has a photographing field of view that can cover at least two of the test strip areas, so that the dry chemical test strips in the test strip areas within its photographing field of view can be photographed at the same time to obtain an image containing the plurality of dry chemical test strips; An image captured by the imaging component at at least one capturing moment is acquired, and dry chemical detection is performed based on the image captured at the at least one capturing moment.

45. The dry chemical detection method according to claim 44, wherein: include: There is at least one target moment, so that the imaging component has at least two dry chemical test papers in the image captured at the target moment, and the at least two dry chemical test papers have any one of the following test paper states: waiting for sample addition state, sample addition end state, reaction process state and reaction end state.

46. ​​The dry chemical detection method according to claim 45, wherein: The at least two dry chemical test papers in the image captured at the target time have different test paper states.

47. The dry chemical detection method according to claim 46, wherein: The imaging component includes a global camera, the shooting field of the global camera can cover the at least two test paper areas; the global camera is used to photograph the dry chemical test paper located in the test paper area covered by its shooting field of view, so that an image captured at the target time contains at least two dry chemical test papers in different test paper states; or, The imaging component includes at least two local cameras, the shooting field of each local camera is any one of the at least two test paper areas, and the test paper areas corresponding to the shooting fields of different local cameras are different; the at least two local cameras are used to shoot the dry chemical test paper in the test paper area covered by their shooting fields, so that the multiple images taken at the target time have at least two dry chemical test papers in different test paper states.

48. The dry chemical detection method according to any one of claims 45 to 47, wherein: The performing of dry chemical detection based on the image captured at the at least one moment includes at least two of the following: In a case where the image captured at the target time contains a dry chemical test paper in the waiting state for sample loading, determining image information of the dry chemical test paper based on the image captured at the target time, and performing an abnormality judgment on the dry chemical test paper based on the image information of the dry chemical test paper, wherein the abnormality includes at least one of a first type of abnormality and a second type of abnormality; the first type of abnormality is used to indicate that the dry chemical test paper is unusable, and the second type of abnormality is used to indicate that there is a deviation in the position of at least one color block in the dry chemical test paper; If the image captured at the target time contains a dry chemical test paper in the sample loading end state, determining image information of the dry chemical test paper based on the image captured at the target time, and determining whether there is a sample loading abnormality on the dry chemical test paper based on the image information of the dry chemical test paper; If there is a sample addition abnormality, the sample addition abnormality prompt message will be output; When the image captured at the target time contains the dry chemical test paper in the sample-addition-completed state, determining image information of the dry chemical test paper based on the image captured at the target time, determining a concentration level of the biological sample to be tested added to the dry chemical test paper based on the image information of the dry chemical test paper, and determining, based on the determined concentration level, a cleaning mode for the sample-adding component after the biological sample to be tested is added to the dry chemical test paper from at least two cleaning modes of different intensities; In a case where the image captured at the target time contains a dry chemical test paper in the reaction process state, determining image information of the dry chemical test paper based on the image captured at the target time, and determining image information of the dry chemical test paper based on an image captured at another time different from the target time, and calculating a test result of a test item corresponding to at least one color block of the dry chemical test paper based on the image information of the dry chemical test paper at the target time and the image information at the another time; wherein the dry chemical test paper is in the reaction process state or the reaction end state in the image captured at the another time; In a case where the image captured at the target moment contains a dry chemical test paper in the reaction end state, image information of the dry chemical test paper is determined based on the image captured at the target moment, and a detection result of a test item corresponding to at least one color block of the dry chemical test paper is calculated based at least on the image information of the dry chemical test paper.

49. The dry chemical detection device according to claim 44, wherein: The dry chemical test paper includes a first dry chemical test paper having one or more color blocks, each corresponding to a test item; the image captured at the at least one moment includes at least a first image and a second image captured by the imaging component of the first dry chemical test paper after the sample adding component adds the biological sample to be tested to the target color block of the first dry chemical test paper, wherein the first image and the second image are captured at different times; The performing of dry chemical detection according to the image captured at the at least one moment includes: The color block information of the target color block of the first dry chemical test paper at different times is determined at least according to the first image and the second image, and the detection result of the test item corresponding to the target color block is calculated based on the color block information of the target color block at different times.

50. The dry chemical detection method according to claim 49, wherein: The determining, at least based on the first image and the second image, color block information of the target color block of the first dry chemical test paper at different times includes: Using image information located in a preset first area in the first image as first color block information of the target color block, the preset first area corresponds to the target color block of the first dry chemical test paper; using image information located in a preset second area in the second image as second color block information of the target color block, wherein the preset second area corresponds to the target color block of the first dry chemical test paper; Preferably, before determining the color block information of the target color block of the first dry chemical test paper at different times based on at least the first image and the second image, it also includes: obtaining the test paper type of the first dry chemical test paper, and obtaining the preset first area and the preset second area based on the test paper type of the first dry chemical test paper.

51. The dry chemical detection method according to claim 49, wherein: The determining, at least based on the first image and the second image, color block information of a target color block of the first dry chemical test paper at different times, and calculating a test result of a test item corresponding to the target color block based on the color block information of the target color block at different times, includes: Calculating color feature differences between color block information of a target color block in the first dry chemical test paper in images captured at different times to determine the first image, such that a color feature difference between the color block information of the target color block in the first image and the color block information of the target color block in at least one image captured before the first image is less than a set threshold; determining the second image, where a shooting time of the second image is before a shooting time of the first image; Determine first color block information of the target color block from the first image, and determine second color block information of the target color block from the second image, and calculate a detection result of a test item corresponding to the target color block based at least on the first color block information and the second color block information.

52. The dry chemical detection method according to claim 51, wherein: The imaging component includes a global camera, the shooting field of the global camera can cover at least two test paper areas among the multiple test paper areas, and the global camera is used to shoot the dry chemical test paper located in the at least two test paper areas; The dry chemical detection method further includes: driving a carrying component by a driving component so that a dry chemical test paper placed on the carrying component is periodically transported in a preset direction among a plurality of test paper areas at a second preset period, so that when the first dry chemical test paper is transported in the at least two test paper areas covered by the shooting field of view of the global camera, it can be photographed by the global camera to obtain the first image and the second image; preferably, the global camera periodically photographs the dry chemical test paper located in the at least two test paper areas at a first preset period, and the second preset period is an integer multiple of the first preset period; The determining of the first image includes: For an image at any capturing moment, determining a position of the first dry chemical test paper in the image at the arbitrary capturing moment based on the second preset period, the arbitrary capturing moment, and the test paper area where the target color block of the first dry chemical test paper is located when the biological sample to be tested is added, and obtaining color block information of the target color block in the first dry chemical test paper from the image at the arbitrary capturing moment based on the position of the first dry chemical test paper in the image at the arbitrary capturing moment and the position of the target color block on the first dry chemical test paper, thereby calculating a color feature difference between the color block information of the target color block in the first dry chemical test paper in images at different capturing moments, to determine the first image; The determining first color block information of the target color block from the first image includes: determining a position of the first dry chemical test paper in the first image according to the second preset period, the time when the first image was captured, and the test paper area where the first dry chemical test paper was located when the biological sample to be tested was added; determining first color block information of the target color block from the first image according to the position of the first dry chemical test paper in the first image and the position of the target color block on the first dry chemical test paper; The determining the second color block information of the target color block from the second image includes: determining a position of the first dry chemical test paper in the second image according to the second preset period, the capturing time in the second image, and the test paper area where the first dry chemical test paper is located when the biological sample to be tested is added; Second color block information of the target color block is determined from the second image according to the position of the first dry chemical test paper in the second image and the position of the target color block on the first dry chemical test paper.

53. The dry chemical detection method according to claim 51, wherein: The imaging component includes at least two local cameras, the shooting field of each local camera is one test paper area among the multiple test paper areas, and the shooting fields of different local cameras correspond to different test paper areas; Each local camera is used to photograph the dry chemical test paper on the test paper area corresponding to its own shooting field of view; The dry chemical detection method further includes: driving a carrying component by a driving component so that a dry chemical test paper placed on the carrying component is periodically transported between a plurality of test paper areas along a preset direction at a second preset period, so that when the first dry chemical test paper is transported between the test paper areas corresponding to the shooting fields of the local cameras, it can be photographed by the corresponding local cameras to obtain the first image and the second image; preferably, each local camera synchronously and periodically photographs the dry chemical test paper on the test paper area corresponding to its respective shooting fields at a first preset period, and the second preset period is an integer multiple of the first preset period; The determining the first image includes: For any shooting moment, determining the test paper area where the first dry chemical test paper is located at the any shooting moment based on the second preset period, the any shooting moment, and the test paper area where the target color block of the first dry chemical test paper is located when the biological sample to be tested is added; Determining a corresponding local camera from the at least two local cameras included in the imaging component based on the test paper area where the first dry chemical test paper is located at the arbitrary shooting moment, acquiring an image captured by the local camera at the arbitrary shooting moment, and determining color block information of a target color block in the first dry chemical test paper from the image based on the position of the target color block on the first dry chemical test paper, thereby calculating a color feature difference between the color block information of the target color block in the first dry chemical test paper in images at different shooting moments to determine the first image; The determining first color block information of the target color block from the first image includes: determining first color block information of the target color block from the first image according to a position of the target color block on the first dry chemical test paper; The determining the second color block information of the target color block from the second image includes: According to the position of the target color block on the first dry chemical test paper, second color block information of the target color block is determined from the second image.

54. The dry chemical detection method according to claim 49, wherein: The determining, at least based on the first image and the second image, color block information of a target color block of the first dry chemical test paper at different times, and calculating a test result of a test item corresponding to the target color block based on the color block information of the target color block at different times, includes: Determining the first image, where the first image is an image captured by the imaging component after the target color block of the first dry chemical test paper is added with the biological sample to be tested and after a set reaction time; determining the second image, where a shooting time of the second image is before a shooting time of the first image; Determine first color block information of the target color block from the first image, and determine second color block information of the target color block from the second image, and calculate a detection result of a test item corresponding to the target color block based at least on the first color block information and the second color block information.

55. The dry chemical detection method according to claim 54, wherein: The imaging component includes a global camera, the shooting field of the global camera can cover at least two test paper areas among the multiple test paper areas, and the global camera is used to shoot the dry chemical test paper located in the at least two test paper areas; The dry chemical detection method further includes: driving a carrying component by a driving component so that a dry chemical test paper placed on the carrying component is periodically transported in a preset direction among a plurality of test paper areas at a second preset period, so that when the first dry chemical test paper is transported in the at least two test paper areas covered by the shooting field of view of the global camera, it can be photographed by the global camera to obtain the first image and the second image; preferably, the global camera periodically photographs the dry chemical test paper located in the at least two test paper areas at a first preset period, and the second preset period is an integer multiple of the first preset period; The determining first color block information of the target color block from the first image includes: determining a position of the first dry chemical test paper in the first image based on the second preset period, the set reaction time, and a test paper area where the target color block of the first dry chemical test paper is located when the biological sample to be tested is added; Obtaining a position of the target color block on the first dry chemical test paper; determining first color block information of the target color block from the first image according to the position of the first dry chemical test paper in the first image and the position of the target color block on the first dry chemical test paper; The determining the second color block information of the target color block from the second image includes: determining a position of the first dry chemical test paper in the second image based on the second preset period, the time when the second image is captured, and the test paper area where the target color block of the first dry chemical test paper is located when the biological sample to be tested is added; Second color block information of the target color block is determined from the second image according to the position of the first dry chemical test paper in the second image and the position of the target color block on the first dry chemical test paper.

56. The dry chemical detection method according to claim 54, wherein: The imaging component includes at least two local cameras, the shooting field of each local camera is one test paper area among the multiple test paper areas, and the shooting fields of different local cameras correspond to different test paper areas; Each local camera is used to photograph the dry chemical test paper on the test paper area corresponding to its own shooting field of view; The dry chemical detection method further includes: driving a carrying component by a driving component so that a dry chemical test paper placed on the carrying component is periodically transported between a plurality of test paper areas along a preset direction at a second preset period, so that when the first dry chemical test paper is transported between the test paper areas corresponding to the shooting fields of the local cameras, it can be photographed by the corresponding local cameras to obtain the first image and the second image; preferably, each local camera synchronously and periodically photographs the dry chemical test paper on the test paper area corresponding to its respective shooting fields at a first preset period, and the second preset period is an integer multiple of the first preset period; The determining first color block information of the target color block from the first image includes: determining, based on the second preset period, the set reaction time, and the test paper area where the target color block of the first dry chemical test paper is located when the biological sample to be tested is added, a first test paper area where the first dry chemical test paper is located in the test paper area after the target color block of the first dry chemical test paper is added to the biological sample to be tested and the set reaction time has elapsed; determining a first local camera from the at least two local cameras included in the imaging component according to the first test paper area; acquiring an image captured by the first local camera at the target color block of the first dry chemical test paper after the biological sample to be tested is added and the set reaction time has elapsed as the first image; determining first color block information of the target color block from the first image according to a position of the target color block on the first dry chemical test paper; The determining the second color block information of the target color block from the second image includes: determining, based on the second preset period, the capture time of the second image, and the test paper area where the target color block of the first dry chemical test paper is located when the biological sample to be tested is added, a second test paper area where the first dry chemical test paper is located within the test paper area at the capture time of the second image; determining a second local camera from the at least two local cameras included in the imaging component according to the second test paper area; acquiring an image captured by the second local camera at the capturing time of the second image as the second image; According to the position of the target color block on the first dry chemical test paper, second color block information of the target color block is determined from the second image.

57. The dry chemical detection method according to any one of claims 51 to 56, wherein: The calculating and obtaining a detection result of a test item corresponding to the target color block based at least on the first color block information and the second color block information includes: Obtaining an actual color curve of the target color block changing over time based at least on the first color block information and the second color block information; comparing the actual color curve with a plurality of standard color curves, wherein the plurality of standard color curves are pre-established corresponding to standard test results of the test items corresponding to the target color block; The detection result of the test item corresponding to the target color block is determined based on the result of the comparison; preferably, the standard detection result corresponding to the standard color curve with the highest similarity to the actual color curve among the multiple standard color curves is determined as the detection result of the test item corresponding to the target color block.

58. The dry chemical detection method according to claim 49, wherein: The imaging component includes a global camera, the shooting field of the global camera can cover at least two test paper areas among the multiple test paper areas, and the global camera is used to shoot the dry chemical test paper located in the at least two test paper areas; The dry chemical test paper further includes a second dry chemical test paper having one or more color blocks, each color block corresponding to a test item; The global camera is used to capture the first image and the fourth image, and the first image and the fourth image are captured at different times; The second dry chemical test paper is present in both the first image and the fourth image; The dry chemical detection method further includes: determining color block information of a color block of the second dry chemical test paper at different times based on at least the first image and the fourth image, and calculating a detection result of a test item corresponding to the color block based on the color block information at different times; or, The global camera is used to shoot to obtain the second image and the fourth image, and the shooting time of the second image and the fourth image is different; the dry chemical detection method also includes: determining the color block information of a color block of the second dry chemical test paper at different times based on at least the second image and the fourth image, and calculating the detection result of the test item corresponding to the color block based on the color block information of the color block at different times.

59. The dry chemical detection device according to claim 44, wherein: The dry chemical test paper includes a first dry chemical test paper, the first dry chemical test paper having at least a first color block corresponding to a first test item and a second color block corresponding to a second test item, wherein the first test item corresponds to a preset first reaction time, and the second test item corresponds to a preset second reaction time different from the first reaction time; The adding of the biological sample to be tested to the color block of the dry chemical test paper by the sample adding component comprises: adding the same biological sample to be tested to the first color block and the second color block of the first dry chemical test paper simultaneously by the sample adding component; The image captured at the at least one moment includes at least a first image and a second image, the first image being an image of the first dry chemical test paper captured after the biological sample to be tested is added and the first reaction time has elapsed, and the second image being an image of the first dry chemical test paper captured after the biological sample to be tested is added and the second reaction time has elapsed; The performing of dry chemical detection according to the image captured at the at least one moment includes: determining first color block information from the first image, and calculating a detection result of the first test item corresponding to the first color block based at least on the first color block information, and, Second color block information is determined from the second image, and a detection result of the second test item corresponding to the second color block is calculated based at least on the second color block information.

60. The dry chemical detection method according to claim 59, characterized in that: Determining the first color block information from the first image includes: using image information located in a preset first area of ​​the first image as the first color block information, wherein the preset first area corresponds to the first color block of the first dry chemical test paper; determining the second color block information from the second image includes: using image information located in a preset second area of ​​the second image as the second color block information, wherein the preset second area corresponds to the second color block of the first dry chemical test paper; Preferably, before determining the first color block information from the first image and determining the second color block information from the second image, it also includes: obtaining the test paper type of the first dry chemical test paper, and obtaining the preset first area and the preset second area according to the test paper type of the first dry chemical test paper.

61. The dry chemical detection method according to claim 59, characterized in that: The imaging component includes a global camera, the shooting field of the global camera can cover at least two test paper areas among the multiple test paper areas, and the global camera is used to shoot the dry chemical test paper located in the at least two test paper areas.

62. The dry chemical detection method according to claim 61, characterized in that: Also includes: The driving component drives the carrying component so that the dry chemical test paper placed on the carrying component is periodically transported in a plurality of test paper areas along a preset direction at a second preset period, so that when the first dry chemical test paper is transported in the at least two test paper areas covered by the shooting field of view of the global camera, it can be captured by the global camera to obtain the first image and the second image; The determining first color block information from the first image includes: determining a position of the first dry chemical test paper in the first image according to the second preset period, the first reaction time, and a test paper area where the first dry chemical test paper is located when the biological sample to be tested is added; Obtaining a position of the first color block on the first dry chemical test paper; determining the first color block information from the first image according to the position of the first dry chemical test paper in the first image and the position of the first color block on the first dry chemical test paper; and The determining the second color block information from the second image includes: determining a position of the first dry chemical test paper in the second image according to the second preset period, the second reaction time, and the test paper area where the first dry chemical test paper is located when the biological sample to be tested is added; Obtaining a position of the second color block on the first dry chemical test paper; The second color block information is determined from the second image according to the position of the first dry chemical test paper in the second image and the position of the second color block on the first dry chemical test paper.

63. The dry chemical detection method according to claim 61 or 62, characterized in that: The test paper area includes a sample adding area, and the biological sample to be tested is added to the first color block and the second color block of the first dry chemical test paper simultaneously in the sample adding area by the sample adding component; The shooting field of view of the global camera can at least cover at least two test paper areas behind the sample addition area along the preset direction.

64. The dry chemical detection method according to claim 63, characterized in that: The determining first color block information from the first image includes: using a third area preset in the first image as the position of the first dry chemical test paper in the first image; Obtaining a position of the first color block on the first dry chemical test paper; determining the first color block information from the first image according to the position of the first dry chemical test paper in the first image and the position of the first color block on the first dry chemical test paper; The determining the second color block information from the second image includes: using a fourth area preset in the second image as the position of the first dry chemical test paper in the second image; Obtaining a position of the second color block on the first dry chemical test paper; The second color block information is determined from the second image according to the position of the first dry chemical test paper in the second image and the position of the second color block on the first dry chemical test paper.

65. The dry chemical detection method according to claim 59, characterized in that The imaging component includes at least two local cameras, each of which has a field of view corresponding to one of the multiple test paper areas, and different local cameras have respective fields of view corresponding to different test paper areas; each local camera is used to photograph the dry chemical test paper in the test paper area corresponding to its respective field of view; 66. The dry chemical detection method according to claim 65, characterized in that: Also includes: The driving component drives the carrying component so that the dry chemical test paper placed on the carrying component is periodically transferred between the plurality of test paper areas along a preset direction and at a second preset period, so that when the first dry chemical test paper is transferred between the test paper areas corresponding to the shooting fields of the local cameras, it can be captured by the corresponding local cameras to obtain the first image and the second image; The determining first color block information from the first image includes: determining, based on the second preset period, the first reaction time, and the test paper area where the first dry chemical test paper is located when the biological sample to be tested is added, a first test paper area where the first dry chemical test paper is located within the test paper area after the biological sample to be tested is added and the first reaction time has elapsed; determining a first local camera from the at least two local cameras included in the imaging component according to the first test paper area; acquiring an image captured by the first local camera when the biological sample to be tested is added to the first dry chemical test paper and the first reaction time elapses as the first image; determining first color block information of the first color block from the first image according to a position of the first color block on the first dry chemical test paper; The determining the second color block information from the second image includes: determining, based on the second preset period, the second reaction time, and the test paper area where the first dry chemical test paper is located when the biological sample to be tested is added, a second test paper area where the first dry chemical test paper is located within the test paper area after the biological sample to be tested is added and the second reaction time has elapsed; determining a second local camera from the at least two local cameras included in the imaging component according to the second test paper area; acquiring an image captured by the second local camera when the first dry chemical test paper is added with the biological sample to be tested and undergoes the second reaction time as the second image; Second color block information of the second color block is determined from the second image according to the position of the second color block on the first dry chemical test paper.

67. The dry chemical detection method according to claim 65 or 66, characterized in that: The test paper area includes a sample adding area, and the biological sample to be tested is added to the first color block and the second color block of the first dry chemical test paper simultaneously in the sample adding area by the sample adding component; The test paper area corresponding to the shooting field of view of each local camera at least includes the test paper area behind the sample adding area along the preset direction.

68. The dry chemical detection method according to claim 67, characterized in that: The determining first color block information from the first image includes: Acquire a first local camera corresponding to the first color block, wherein a correspondence between the first local camera and the first color block is established in advance; acquiring an image captured by the first local camera after the biological sample to be tested is added to the first dry chemical test paper and the first reaction time elapses as the first image; determining first color block information of the first color block from the first image according to a position of the first color block on the first dry chemical test paper; The determining the second color block information from the second image includes: Acquire a second local camera corresponding to the second color block, wherein a correspondence between the second local camera and the second color block is established in advance; acquiring an image captured by the second local camera after the biological sample to be tested is added to the first dry chemical test paper and the second reaction time elapses as the second image; Second color block information of the second color block is determined from the second image according to the position of the second color block on the first dry chemical test paper.

69. The dry chemical detection method according to claim 59, characterized in that: The imaging component includes a global camera, the shooting field of the global camera can cover at least two test paper areas among the multiple test paper areas, and the global camera is used to shoot the dry chemical test paper located in the at least two test paper areas; The dry chemical test paper further includes a second dry chemical test paper, wherein the second dry chemical test paper has at least a fourth color block corresponding to a fourth test item, wherein the fourth test item corresponds to a preset fourth reaction time; The first image or the second image also contains the second dry chemical test paper; the dry chemical detection method also includes: determining fourth color block information based on the first image or the second image, and calculating the detection result of the fourth test item corresponding to the fourth color block based at least on the fourth color block information.

70. The dry chemical detection device according to claim 44, characterized in that The biological sample to be tested includes a urine sample, a body fluid sample and / or a vaginal secretion.

Images