Dry chemical detection device and method

Abstract

According to the dry chemical detection device and the dry chemical detection method, after a to-be-detected biological sample is added to a target color block (99) of first dry chemical test paper (91) by a sample adding part (30) through an imaging part (50), the first dry chemical test paper (91) is shot to obtain a plurality of images; the plurality of images at least comprise a first image and a second image, and the shooting moments of the first image and the second image are different; color block information of a target color block (99) of the first dry chemical test paper (91) at different moments is determined at least from the first image and the second image, and a detection result of a test item corresponding to the target color block (99) is calculated based on the color block information of the target color block (99) at different moments, such that the detection result is more accurate.

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 can rapidly detect 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 technology for routine tests such as urine and is widely used in clinical testing.

[0003] Even when the dry chemical testing device and dry chemical test paper meet all the conditions, inaccurate test results may still occur.

[0004] Summary of the Invention

[0005] 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.

[0006] 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, a driving component, an imaging component, and a processor;

[0007] The plurality of test paper areas include a sample addition area;

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

[0009] The driving component is used to drive the carrying component so that the dry chemical test paper placed on the carrying component is transported along a preset direction among the multiple test paper areas;

[0010] The sample adding component is used to add the biological sample to be tested to the target color block in the first dry chemical test paper conveyed to the sample adding area;

[0011] 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 first dry chemical test paper to obtain at least two images of the first dry chemical test paper at different shooting times; and

[0012] The processor is configured to:

[0013] obtaining the actual color of the target color block at different times based on at least two images of the first dry chemical test paper taken at different times;

[0014] Calculate the detection results of the test items corresponding to the target color block according to the actual colors of the target color block at different times and multiple sets of standard colors.

[0015] According to a second aspect, an embodiment provides a dry chemical detection device, comprising: a carrying component, a sample adding component, an imaging component, and a processor;

[0016] The carrying component is used to place dry chemical test paper, and the dry chemical test paper includes a first dry chemical test paper, and the first dry chemical test paper has one or more color blocks, each color block corresponding to a test item;

[0017] The sample adding component is used to add the biological sample to be tested to the color block of the first dry chemical test paper;

[0018] The imaging component is configured to photograph the first dry chemical test paper after the sample adding component adds the biological sample to the target color block of the first dry chemical test paper, so as to obtain a plurality of images; wherein the plurality of images include at least a first image and a second image, and the first image and the second image are photographed at different times;

[0019] The processor is configured to:

[0020] acquiring the first image and the second image;

[0021] 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.

[0022] In one embodiment, the processor determines 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, including:

[0023] 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;

[0024] 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.

[0025] In one embodiment, before determining 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, the processor further includes:

[0026] Obtaining the test paper type of the first dry chemical test paper;

[0027] The preset first area and the preset second area are acquired according to the test paper type of the first dry chemical test paper.

[0028] In one embodiment, the imaging component is further configured to photograph the first dry chemical test paper to obtain a third image before the sample adding component adds the biological sample to the target color block of the first dry chemical test paper;

[0029] The processor is also used to perform an abnormality judgment on the first dry chemical test paper based on the third image, and 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 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.

[0030] In one embodiment, 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, 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:

[0031] 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;

[0032] determining the second image, where a shooting time of the second image is before a shooting time of the first image;

[0033] 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.

[0034] In one embodiment, the dry chemical detection device further includes a plurality of test paper areas for placing dry chemical test papers; and

[0035] 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.

[0036] In one embodiment, 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 in 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.

[0037] The processor determines the first image, including:

[0038] 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;

[0039] The processor determines first color block information of the target color block from the first image, including:

[0040] 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;

[0041] 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;

[0042] The processor determines second color block information of the target color block from the second image, including:

[0043] 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;

[0044] 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.

[0045] In one embodiment, the global camera is used to photograph the dry chemical test paper located in the at least two test paper areas, including:

[0046] The global camera periodically photographs the dry chemical test paper located in the at least two test paper areas at a first preset period; wherein the second preset period is an integer multiple of the first preset period.

[0047] In one embodiment, 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 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;

[0048] The processor determines the first image, including:

[0049] Obtaining the test paper area where the first dry chemical test paper is located;

[0050] 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;

[0051] The processor determines first color block information of the target color block from the first image, including:

[0052] 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;

[0053] The processor determines second color block information of the target color block from the second image, including:

[0054] 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.

[0055] In one embodiment, the first dry chemical test paper has a test paper mark;

[0056] The processor determines the first image, including:

[0057] 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;

[0058] Obtaining a position of the target color block on the first dry chemical test paper;

[0059] 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;

[0060] The processor determines first color block information of the target color block from the first image, including:

[0061] 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;

[0062] 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;

[0063] The processor determines second color block information of the target color block from the second image, including:

[0064] 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;

[0065] 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.

[0066] In one embodiment, the dry chemical detection device further includes a plurality of test paper areas for placing dry chemical test papers; and

[0067] 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.

[0068] In one embodiment, 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.

[0069] The processor determines the first image, including:

[0070] 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;

[0071] 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;

[0072] The processor determines first color block information of the target color block from the first image, including:

[0073] 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;

[0074] The processor determines second color block information of the target color block from the second image, including:

[0075] 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.

[0076] In one embodiment, each local camera is used to photograph the dry chemical test paper on the test paper area corresponding to its respective shooting field of view, including:

[0077] Each local camera synchronously and periodically photographs the dry chemical test paper on the test paper area corresponding to its own photographing field of view in a first preset period; wherein the second preset period is an integer multiple of the first preset period.

[0078] In one embodiment, 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 a test paper area corresponding to a 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;

[0079] The processor determines the first image, including:

[0080] Obtaining the test paper area where the first dry chemical test paper is located;

[0081] 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;

[0082] 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;

[0083] The processor determines first color block information of the target color block from the first image, including:

[0084] 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;

[0085] The processor determines second color block information of the target color block from the second image, including:

[0086] 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.

[0087] In one embodiment, 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, 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:

[0088] 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;

[0089] determining the second image, where a shooting time of the second image is before a shooting time of the first image;

[0090] 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.

[0091] In one embodiment, the imaging component is used to photograph the first dry chemical test paper after the sample adding component adds the biological sample to the target color block of the first dry chemical test paper to obtain multiple images, including:

[0092] periodically photographing the first dry chemical test paper at a first preset period to obtain the plurality of images;

[0093] The set reaction time is the time corresponding to M first preset cycles after the target color block of the first dry chemical test paper is added with the biological sample to be tested; accordingly, the first image is an image of the target color block of the first dry chemical test paper taken after the biological sample to be tested is added and after M first preset cycles, where M is a preset positive integer.

[0094] In one embodiment, the dry chemical detection device further includes a plurality of test paper areas for placing dry chemical test papers; and

[0095] 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.

[0096] In one embodiment, 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 in 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.

[0097] The processor determines first color block information of the target color block from the first image, including:

[0098] 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;

[0099] Obtaining a position of the target color block on the first dry chemical test paper;

[0100] 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;

[0101] The processor determines second color block information of the target color block from the second image, including:

[0102] 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;

[0103] 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.

[0104] In one embodiment, the global camera is used to photograph the dry chemical test paper located in the at least two test paper areas, including:

[0105] The global camera periodically photographs the dry chemical test paper located in the at least two test paper areas at a first preset period; wherein the second preset period is an integer multiple of the first preset period.

[0106] In one embodiment, 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 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;

[0107] The processor determines first color block information of the target color block from the first image, including:

[0108] Obtaining the test paper area where the first dry chemical test paper is located;

[0109] 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;

[0110] Obtaining a position of the target color block on the first dry chemical test paper;

[0111] 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;

[0112] The processor determines second color block information of the target color block from the second image, including:

[0113] Obtaining the test paper area where the first dry chemical test paper is located;

[0114] 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;

[0115] Obtaining a position of the target color block on the first dry chemical test paper;

[0116] 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.

[0117] In one embodiment, the first dry chemical test paper has a test paper mark;

[0118] The processor determines first color block information of the target color block from the first image, including:

[0119] 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;

[0120] Obtaining a position of the target color block on the first dry chemical test paper;

[0121] 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;

[0122] The processor determines second color block information of the target color block from the second image, including:

[0123] 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;

[0124] Obtaining a position of the target color block on the first dry chemical test paper;

[0125] 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.

[0126] In one embodiment, the dry chemical detection device further includes a plurality of test paper areas for placing dry chemical test papers; and

[0127] 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.

[0128] In one embodiment, 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.

[0129] The processor determines first color block information of the target color block from the first image, including:

[0130] 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;

[0131] determining a first local camera from the at least two local cameras included in the imaging component according to the first test paper area;

[0132] 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;

[0133] 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;

[0134] The processor determines second color block information of the target color block from the second image, including:

[0135] 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;

[0136] determining a second local camera from the at least two local cameras included in the imaging component according to the second test paper area;

[0137] acquiring an image captured by the second local camera at the capturing time of the second image as the second image;

[0138] 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.

[0139] In one embodiment, each local camera is used to photograph the dry chemical test paper on the test paper area corresponding to its respective shooting field of view, including:

[0140] Each local camera synchronously and periodically photographs the dry chemical test paper on the test paper area corresponding to its own photographing field of view in a first preset period; wherein the second preset period is an integer multiple of the first preset period.

[0141] In one embodiment, 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 a test paper area corresponding to a 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;

[0142] The processor determines first color block information of the target color block from the first image, including:

[0143] Obtaining the test paper area where the first dry chemical test paper is located;

[0144] 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;

[0145] 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;

[0146] 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;

[0147] The processor determines second color block information of the target color block from the second image, including:

[0148] Acquire an image captured by the target local camera at the capturing time of the second image as the second image;

[0149] 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.

[0150] In one embodiment, the processor calculates a detection result of a test item corresponding to the target color block based on at least the first color block information and the second color block information, including:

[0151] 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;

[0152] 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;

[0153] Determining the test result of the test item corresponding to the target color block based on the comparison result. 34. The dry chemical detection device of claim 33, wherein the processor determines the test result of the test item corresponding to the target color block based on the comparison result, comprising:

[0154] The processor determines a standard detection result corresponding to a standard color curve having the highest similarity to the actual color curve among the plurality of standard color curves as a detection result of the test item corresponding to the target color block.

[0155] In one embodiment, 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, 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:

[0156] 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;

[0157] 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;

[0158] 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.

[0159] In one embodiment, the dry chemical detection device further includes a plurality of test paper areas for placing dry chemical test papers; and

[0160] 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;

[0161] 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;

[0162] 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:

[0163] For an image at any i-th capturing moment, determining a 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 region of the test paper where the target color block of the first dry chemical test paper is located when the biological sample to be tested is added;

[0164] Obtaining a position of the target color block on the first dry chemical test paper;

[0165] 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.

[0166] In one embodiment, the global camera is used to photograph the dry chemical test paper in the at least two test paper areas, including:

[0167] The global camera periodically photographs the dry chemical test paper located in the at least two test paper areas at a first preset period; wherein the second preset period is an integer multiple of the first preset period.

[0168] In one embodiment, the dry chemical detection device further includes a plurality of test paper areas for placing dry chemical test papers; and

[0169] 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;

[0170] 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;

[0171] 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:

[0172] 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;

[0173] 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.

[0174] In one embodiment, the processor calculates the detection result of the test item corresponding to the target color block based on the color block information of the target color block at different times, including:

[0175] The color block information of the target color block at different times is input into a pre-established machine learning model to obtain the detection results of the test items corresponding to the target color block through the machine learning model.

[0176] In one embodiment, the dry chemical detection device further includes a plurality of test paper areas for placing dry chemical test papers; and

[0177] 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.

[0178] In one embodiment, the dry chemical test paper further includes a second dry chemical test paper, wherein the second dry chemical test paper has one or more color blocks, each color block corresponding to a test item;

[0179] 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;

[0180] or,

[0181] 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.

[0182] In one embodiment, the biological sample to be tested includes a urine sample, a body fluid sample and / or a vaginal secretion.

[0183] According to a third aspect, an embodiment provides a dry chemical detection method, comprising:

[0184] The driving component drives the carrying component so that the dry chemical test paper placed on the carrying component is transported along a preset direction among multiple test paper areas; wherein the multiple test paper areas include a sample addition area, and the dry chemical test paper includes a first dry chemical test paper, the first dry chemical test paper having one or more color blocks, each color block corresponding to a test item;

[0185] adding the biological sample to be tested to the target color block in the first dry chemical test paper transported to the sample adding area by a sample adding component;

[0186] photographing the first dry chemical test paper using a global camera after the sample adding component adds the biological sample to the target color block of the first dry chemical test paper, so as to obtain at least two images of the first dry chemical test paper at different photographing times;

[0187] obtaining the actual color of the target color block at different times based on at least two images of the first dry chemical test paper taken at different times;

[0188] Calculate the detection results of the test items corresponding to the target color block according to the actual colors of the target color block at different times and multiple sets of standard colors.

[0189] According to a fourth aspect, an embodiment provides a dry chemical detection method, comprising:

[0190] Adding a biological sample to be tested to a color block of a dry chemical test paper located in the test paper area by a sample adding component, wherein 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;

[0191] After the sample adding component adds the biological sample to the target color block of the first dry chemical test paper, the first dry chemical test paper is photographed by an imaging component to obtain a plurality of images; wherein the plurality of images include at least a first image and a second image, wherein the first image and the second image are photographed at different times;

[0192] 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.

[0193] According to the dry chemical detection device and dry chemical detection method of some of the above-mentioned embodiments, the actual color of the target color block at different times is obtained based on at least two images of the first dry chemical test paper taken at different times, and the detection results of the test items corresponding to the target color block are calculated based on the actual colors of the target color block at different times, so that the detection results are more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0194] FIG1 is a schematic diagram of a dry chemical test paper according to an embodiment;

[0195] 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;

[0196] FIG3 is a schematic structural diagram of a dry chemical detection device according to an embodiment;

[0197] FIG4 is a schematic structural diagram of a dry chemical detection device according to an embodiment;

[0198] 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;

[0199] FIG6 is a schematic flow chart of a dry chemical detection method according to an embodiment;

[0200] FIG7 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;

[0201] FIG8 is a schematic flow chart of a dry chemical detection method according to an embodiment;

[0202] FIG9( a ) is a schematic diagram of a process for determining a first image according to an embodiment; FIG9( b ) is a schematic diagram of a process for determining a first image according to an embodiment;

[0203] FIG10 is a schematic flow chart of a dry chemical detection method according to an embodiment;

[0204] FIG11( a ) is a schematic diagram of a process for determining a first image according to an embodiment; FIG11( b ) is a schematic diagram of a process for determining a first image according to an embodiment;

[0205] FIG12 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;

[0206] FIG13(a) is a flowchart of determining first color block information of a target color block from a first image according to an embodiment; FIG13(b) is a flowchart of determining first color block information of a target color block from a first image according to an embodiment; FIG13(c) is a flowchart of determining first color block information of a target color block from a first image according to an embodiment; FIG13(d) is a flowchart of determining first color block information of a target color block from a first image according to an embodiment;

[0207] FIG14 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;

[0208] FIG15 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;

[0209] FIG16 is a schematic flow chart of a dry chemical detection method according to an embodiment. DETAILED DESCRIPTION

[0210] 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.

[0211] 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.

[0212] 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).

[0213] 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 referred to as a dry chemical test paper. Figure 1 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, after it is produced, the position of each color block 99 in the dry chemical test paper is determined.

[0214] 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.

[0215] 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.

[0216] In addition, when it comes to a specific color block on a dry chemical test paper, the specific color block will be photographed at a detection time (or a detection area), and the color block information (such as color information) will be extracted based on the image captured at this moment, and the detection result of the corresponding test item will be calculated; or, further, the specific color block will be photographed multiple times at different time points, and then an image will be selected from it, and the color block information will be provided from the selected image, and the detection result of the corresponding test item will be calculated; however, when all conditions are normal, inaccurate color block detection results will still occur.

[0217] 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 color block information of at least two different times of the color block is used to calculate the test results of the test items corresponding to the color block, which means that the color block information at at least two different times is actually and directly involved 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).

[0218] The dry chemical detection device is first described below.

[0219] 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.

[0220] The carrier 10 is used to place dry chemical test paper 90. For ease of description, the concept of a test paper area 20 can be introduced, and the carrier 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. The figure shows a schematic diagram of a dry chemical detection device including 10 test paper areas 20.

[0221] In some embodiments, please refer to Figure 3, 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.

[0222] 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.

[0223] 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.

[0224] 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.

[0225] In some embodiments, please refer to Figure 4, 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.

[0226] The sample loading component 30 is used to add a biological sample to be tested to the color block 99 on the dry chemical test strip 90. For example, the sample loading component 30 is used to add a 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 loading component 30 is used to add a 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 corresponding test strip area 20 can be referred to as the sample loading area 21. The sample loading component 30 can perform the sample loading operation—i.e., the operation of adding a biological sample to the color block 99 on the dry chemical test strip 90—under the control of the processor 70.

[0227] In some embodiments, the biological sample to be tested includes a urine sample, a body fluid sample, and / or a vaginal secretion.

[0228] The imaging component 50 is used to capture images, for example, to capture images of part or all of the dry chemical test paper 90 located on the supporting component 10, or to capture images of the dry chemical test paper 90 located in all or part of the test paper area 20.

[0229] 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.

[0230] 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.

[0231] 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.

[0232] 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 .

[0233] 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.

[0234] The processor 70 can obtain the image captured by the imaging component 50 and determine the color information of the color block 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.

[0235] The above are some instructions for the dry chemical test paper device.

[0236] 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.

[0237] 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.

[0238] 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.

[0239] 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.

[0240] 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.

[0241] 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.

[0242] 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.

[0243] 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.

[0244] 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.

[0245] 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.

[0246] 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.

[0247] 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.

[0248] 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.

[0249] (1.1) Global Camera + Dynamic Scene

[0250] 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.

[0251] 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.

[0252] 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).

[0253] 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.

[0254] (1.2) Global Camera + Static Scene

[0255] 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.

[0256] 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.

[0257] 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).

[0258] 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.

[0259] 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.

[0260] 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).

[0261] 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.

[0262] (1.3) Local Camera + Dynamic Scene

[0263] 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.

[0264] 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.

[0265] 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).

[0266] 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.

[0267] (1.4) Local Camera + Static Scene

[0268] 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.

[0269] 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.

[0270] 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).

[0271] 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.

[0272] 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.

[0273] 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.

[0274] 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.

[0275] 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.

[0276] 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.

[0277] (2.1) Global Camera + Dynamic Scene

[0278] 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.

[0279] 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.

[0280] (2.2) Global Camera + Static Scene

[0281] 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.

[0282] 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.

[0283] 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.

[0284] (2.3) Local Camera + Dynamic Scene

[0285] 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.

[0286] 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.

[0287] (2.4) Local Camera + Static Scene

[0288] 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.

[0289] 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.

[0290] 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.

[0291] 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.

[0292] 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.

[0293] 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.

[0294] 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.

[0295] 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:

[0296] 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;

[0297] 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;

[0298] 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.

[0299] In some embodiments, K is 1, 2, 3, 4, 5 or 6, etc.

[0300] The following further explains how to generate and match the actual color curve in real time based on specific scenarios.

[0301] (3.1) Global Camera + Dynamic Scene

[0302] 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.

[0303] 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.

[0304] (3.2) Global Camera + Static Scene

[0305] 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.

[0306] 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.

[0307] (3.3) Local Camera + Dynamic Scene

[0308] 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.

[0309] 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.

[0310] (3.4) Local Camera + Static Scene

[0311] 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.

[0312] 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.

[0313] 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.

[0314] 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.

[0315] 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.

[0316] 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.

[0317] When calculating the test results, processor 70 can calculate the test results for the test item corresponding to target color block 99 based on the actual color of target color block 99 at different times and multiple sets of standard colors. Each set of standard colors is pre-established to correspond to the standard test results for the test item corresponding to target color block 99 and includes at least two standard colors at different reaction times. Specifically, for each of the multiple standard test results for the test item corresponding to target color block 99, a biological sample with the corresponding standard test result is added to target color block 99 and reacted, thereby forming standard colors at different reaction times during the reaction process. The standard colors at different reaction times during the reaction process corresponding to the same standard test result form a set of standard colors. In other words, each set of standard colors includes standard colors at multiple different reaction times during the reaction process corresponding to a corresponding standard test result. When presented in a discrete form, a set of standard colors can be a standard color group; when presented in a continuous form, a set of standard colors can be a standard color curve, as further described below.

[0318] 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 moments, and compares 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; determines the detection results of the test items corresponding to the target color block 99 based on the comparison results, for example, determines 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 as the detection result of the test items corresponding to the target color block 99.

[0319] 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 to correspond 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 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 considered as a discretized representation of a continuous reaction curve.

[0320] 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.

[0321] 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.

[0322] 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).

[0323] 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.

[0324] Referring to FIG. 6 , the dry chemical detection method of some embodiments includes the following steps:

[0325] 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.

[0326] In some embodiments, the biological sample to be tested includes a urine sample, a body fluid sample, and / or a vaginal secretion.

[0327] 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.

[0328] 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.

[0329] 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.

[0330] 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.

[0331] 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.

[0332] Therefore, referring to FIG. 7 , 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:

[0333] 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.

[0334] Step 1230: Determine a second image, where the second image is captured before the first image.

[0335] 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.

[0336] In some embodiments, in the global camera + dynamic scene, please refer to Figure 8, 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.

[0337] 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.

[0338] In some embodiments, referring to FIG. 9( a ), in combination with the scene defined in step 1010 , step 1210 may determine the first image as follows:

[0339] 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.

[0340] 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.

[0341] 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).

[0342] 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.

[0343] In some embodiments, referring to FIG. 9( b ), in a global camera + static scene, step 1210 may determine the first image as follows:

[0344] Step 1213: Acquire the test paper area 20 where the first dry chemical test paper 91 is located.

[0345] 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.

[0346] 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.

[0347] 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).

[0348] 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.

[0349] 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.

[0350] In some embodiments, in the local camera + dynamic scene, please refer to Figure 10, 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.

[0351] In some embodiments, referring to FIG. 11( a ), in combination with the scene defined in step 1011 , step 1210 may determine the first image as follows:

[0352] 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.

[0353] 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.

[0354] 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.

[0355] 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).

[0356] 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.

[0357] In some embodiments, referring to FIG. 11( b ), in a local camera + static scene, step 1210 may determine the first image as follows:

[0358] Step 1219: Obtain the test paper area 20 where the first dry chemical test paper 91 is located.

[0359] 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.

[0360] 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.

[0361] 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).

[0362] 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.

[0363] 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.

[0364] 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.

[0365] Therefore, in some embodiments, referring to FIG. 12 , 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:

[0366] 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.

[0367] 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.

[0368] Step 1260: Determine a second image, where the second image is captured before the first image.

[0369] 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.

[0370] In some embodiments, referring to FIG. 13( 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:

[0371] 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.

[0372] Step 1272 : Obtain the position of the target color block 99 on the first dry chemical test paper 91 .

[0373] 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 .

[0374] 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.

[0375] In some embodiments, referring to FIG. 13( 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:

[0376] Step 1274 : Obtain the test paper area 20 where the first dry chemical test paper 91 is located.

[0377] 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.

[0378] Step 1276 : Obtain the position of the target color block 99 on the first dry chemical test paper 91 .

[0379] 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 .

[0380] 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.

[0381] 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.

[0382] In some embodiments, referring to FIG. 13( 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:

[0383] 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.

[0384] 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 .

[0385] 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.

[0386] 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 .

[0387] 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.

[0388] In some embodiments, referring to FIG. 13( 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:

[0389] Step 1282: Obtain the test paper area 20 where the first dry chemical test paper 91 is located.

[0390] 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.

[0391] 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.

[0392] 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 .

[0393] Similarly, step 1270 determines the second color block information of the target color block 99 from the second image, including: obtaining the image captured by the target local camera 53 at the time of capturing 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.

[0394] 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 involved in steps 1240 and 1270 can be performed as follows, as shown in FIG. 14 :

[0395] 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.

[0396] 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 .

[0397] 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.

[0398] 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.

[0399] Therefore, in some embodiments, referring to FIG. 15 , 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:

[0400] 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.

[0401] In some embodiments, K is 1, 2, 3, 4, 5 or 6, etc.

[0402] 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;

[0403] 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.

[0404] 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.

[0405] 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.

[0406] 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.

[0407] 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.

[0408] 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.

[0409] 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.

[0410] 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.

[0411] The color block information may be related information representing the color. Therefore, referring to FIG. 16 , the dry chemical detection method of some embodiments includes the following steps:

[0412] 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 .

[0413] 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 .

[0414] 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.

[0415] 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.

[0416] 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.

[0417] 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.

[0418] Step 1340: Calculate the test results for the test item corresponding to the target color block 99 based on the actual color of the target color block 99 at different times and multiple sets of standard colors. Each set of standard colors is pre-established to correspond to the standard test results for the test item corresponding to the target color block, and includes at least two standard colors at different reaction times.

[0419] When calculating the test results, step 1340 can calculate the test results for the test item corresponding to target color block 99 based on the actual color of target color block 99 at different times and multiple sets of standard colors. Each set of standard colors is pre-established to correspond to the standard test results for the test item corresponding to target color block 99 and includes at least two standard colors at different reaction times. Specifically, for each of the multiple standard test results for the test item corresponding to target color block 99, a biological sample with the corresponding standard test result is added to target color block 99 and reacted, thereby forming standard colors at different reaction times during the reaction process. The standard colors at different reaction times during the reaction process corresponding to the same standard test result form a set of standard colors. In other words, each set of standard colors includes standard colors at multiple different reaction times during the reaction process corresponding to a single standard test result. When presented in a discrete form, a set of standard colors can be a standard color group; when presented in a continuous form, a set of standard colors can be a standard color curve, as further described below.

[0420] 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, where the multiple standard color curves are pre-established corresponding to the standard test results of the test items corresponding to the target color block 99; 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.

[0421] 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 vary over time during the reaction process of the added biological sample to be tested, and can also be 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 vary 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 considered as a discretized representation of a continuous reaction curve.

[0422] 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.

[0423] 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.

[0424] 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).

[0425] 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.

[0426] In the above embodiments, all or part of the embodiments may be implemented through software, hardware, firmware, or any combination thereof. Furthermore, as will be appreciated by those skilled in the art, the principles herein 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 can generate a device that implements a specified function. These computer program instructions may also be stored in a computer-readable memory, which can 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 can form an article of manufacture, including an implementation device that implements a specified function. The computer program instructions may also be loaded onto a computer or other programmable data processing device, causing the computer or other programmable device to execute a series of operational steps to generate a computer-implemented process, such that the instructions executed on the computer or other programmable device can provide the steps for implementing the specified function.

[0427] 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.

[0428] The foregoing detailed description has been described with reference to various embodiments. However, those skilled in the art will recognize that various modifications and variations may be made without departing from the scope of this disclosure. Therefore, this disclosure is to be considered in an illustrative, rather than a restrictive, sense, and all such modifications are intended to be included within its scope. Similarly, advantages, other advantages, and solutions to problems associated with various embodiments have been described above. However, none of the benefits, advantages, solutions to problems, or any elements that contribute to or enhance these solutions should be construed as essential, required, or necessary. As used herein, the term "comprising" and any variations thereof are intended to be non-exclusive, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed or not part of the process, method, system, article, or apparatus. Furthermore, as used herein, the term "coupled" and any variations thereof refer to physical, electrical, magnetic, optical, communicative, functional, and / or any other connection. Those skilled in the art will recognize that numerous changes may be made to the details of the foregoing embodiments without departing from the underlying principles of the invention. Therefore, the scope of the present invention should be determined solely by the claims.

Claims

1. A dry chemical detection device, characterized in that: include: Multiple test paper areas, a carrying component, a sample adding component, a driving component, an imaging component and a processor; The plurality of test paper areas include a sample addition area; The carrying component is used to place the dry chemical test paper located in the test paper area, the dry chemical test paper includes a first dry chemical test paper, the first dry chemical test paper has one or more color blocks, each color block corresponds to a test item; The driving component is used to drive the carrying component so that the dry chemical test paper placed on the carrying component is transported along a preset direction among the multiple test paper areas; The sample adding component is used to add the biological sample to be tested to the target color block in the first dry chemical test paper conveyed to the sample adding area; 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 first dry chemical test paper to obtain at least two images of the first dry chemical test paper at different shooting times; and The processor is configured to: obtaining the actual color of the target color block at different times based on at least two images of the first dry chemical test paper taken at different times; The detection results of the test items corresponding to the target color block are calculated based on the actual colors of the target color block at different times and multiple sets of standard colors, wherein each set of standard colors is pre-established with the standard detection results of the test items corresponding to the target color block, and includes at least two standard colors at different reaction times.

2. The dry chemical detection device according to claim 1, characterized in that: The driving component is used to drive the carrying component so that the dry chemical test paper placed on the carrying component is transported in the plurality of test paper areas along a preset direction at a second preset period; The processor obtains the actual color of the target color block at different times based on at least two images of the first dry chemical test paper taken at different times, including: For the image at any one of the at least two images taken at different times, the position of the first dry chemical test paper in the image at any one of the images is determined based on the second preset period, the image at any one of the images and the position of the sample addition area, and based on the position of the image at any one of the images and the position of the target color block on the first dry chemical test paper, the actual color of the target color block in the first dry chemical test paper is obtained from the image at any one of the images taken.

3. The dry chemical detection device according to claim 2, characterized in that: The global camera periodically takes photos at a first preset period; wherein the second preset period is an integer multiple of the first preset period.

4. The dry chemical detection device according to claim 1, wherein: The first dry chemical test paper has a test paper mark; The processor obtains the actual color of the target color block at different times based on at least two images of the first dry chemical test paper taken at different times, including: For an image at any one of the at least two images taken at different times, determining, based on the test paper identifier of the first dry chemical test paper, a position of the first dry chemical test paper in the image at any one of the images taken at the time; 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 any shooting moment and the position of the target color block on the first dry chemical test paper, the actual color of the target color block in the first dry chemical test paper is obtained from the image at any shooting moment.

5. The dry chemical detection device according to claim 1, wherein: The processor calculates the detection results of the test items corresponding to the target color block according to the actual colors of the target color block at different times and multiple sets of standard colors, including: The actual color of the target color block at different moments is compared with a plurality of standard color groups, each of which includes the standard color corresponding to the reaction moment at the different moments; each standard color group is pre-established with the standard test result of the test item 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.

6. The dry chemical detection device according to claim 1, wherein: The processor calculates the detection results of the test items corresponding to the target color block according to the actual colors of the target color block at different times and multiple sets of standard colors, including: Calculating an actual color curve of the target color block over time based on the actual color of the target color block at different times; 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.

7. The dry chemical detection device according to claim 1, characterized in that: 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; Among the at least two images of the first dry chemical test paper taken at different times, there is an image taken at a target time, and the image taken at the target time includes the first dry chemical test paper and the second dry chemical test paper; the global camera is further configured to capture an image at another time different from the target time, and the image includes the second dry chemical test paper; The processor is also used to obtain the actual color of a color block of the second dry chemical test paper at different times based on the image taken at the target moment and the image taken at the other moment, and calculate the detection result of the test item corresponding to the color block based on the actual color of the color block at different times.

8. A dry chemical detection device, characterized in that: include: Carrying components, sample loading components, imaging components and processors; The carrying component is used to place dry chemical test paper, and the dry chemical test paper includes a first dry chemical test paper, and the first 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 first dry chemical test paper; The imaging component is configured to photograph the first dry chemical test paper after the sample adding component adds the biological sample to the target color block of the first dry chemical test paper, so as to obtain a plurality of images; wherein the plurality of images include at least a first image and a second image, and the first image and the second image are photographed at different times; The processor is configured to: acquiring the first image and the second image; 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.

9. The dry chemical detection device according to claim 8, 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.

10. The dry chemical detection device according to claim 9, characterized in that: Before the processor determines 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, the processor further includes: Obtaining the test paper type of the first dry chemical test paper; The preset first area and the preset second area are acquired according to the test paper type of the first dry chemical test paper.

11. The dry chemical detection device according to claim 8, characterized in that: The imaging component is further configured to photograph the first dry chemical test paper to obtain a third image before the sample adding component adds the biological sample to the target color block of the first dry chemical test paper; The processor is also used to perform an abnormality judgment on the first dry chemical test paper based on the third image, and 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 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.

12. The dry chemical detection device according to claim 8, 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.

13. The dry chemical detection device according to claim 12, wherein: The dry chemical detection device also includes a plurality of test paper areas for placing dry chemical test papers; as well as, 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.

14. The dry chemical detection device according to claim 13, 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 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.

15. The dry chemical detection device according to claim 14, characterized in that: The global camera is used to photograph the dry chemical test paper located in the at least two test paper areas, including: The global camera periodically photographs the dry chemical test paper located in the at least two test paper areas at a first preset period; wherein the second preset period is an integer multiple of the first preset period.

16. The dry chemical detection device according to claim 13, 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.

17. The dry chemical detection device according to claim 13, wherein: 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.

18. The dry chemical detection device according to claim 12, 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.

19. The dry chemical detection device according to claim 18, wherein: 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 photographing moment, determining the test paper area where the first dry chemical test paper is located at the any photographing moment based on the second preset period, the any photographing 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: Second color block information of the target color block is determined from the second image according to the position of the target color block on the first dry chemical test paper.

20. The dry chemical detection device according to claim 19, characterized in that: 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, including: Each local camera synchronously and periodically photographs the dry chemical test paper on the test paper area corresponding to its own photographing field of view in a first preset period; wherein the second preset period is an integer multiple of the first preset period.

21. The dry chemical detection device according to claim 18, 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.

22. The dry chemical detection device according to claim 8, 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.

23. The dry chemical detection device according to claim 22, characterized in that: The imaging component is used to photograph the first dry chemical test paper after the sample adding component adds the biological sample to the target color block of the first dry chemical test paper to obtain multiple images, including: periodically photographing the first dry chemical test paper at a first preset period to obtain the plurality of images; The set reaction time is the time corresponding to M first preset cycles after the target color block of the first dry chemical test paper is added with the biological sample to be tested; accordingly, the first image is an image of the target color block of the first dry chemical test paper taken after the biological sample to be tested is added and after M first preset cycles, where M is a preset positive integer.

24. The dry chemical detection device according to claim 22, wherein: The dry chemical detection device also includes a plurality of test paper areas for placing dry chemical test papers; as well as, 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.

25. The dry chemical detection device according to claim 24, 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 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.

26. The dry chemical detection device according to claim 25, characterized in that: The global camera is used to photograph the dry chemical test paper located in the at least two test paper areas, including: The global camera periodically photographs the dry chemical test paper located in the at least two test paper areas at a first preset period; wherein the second preset period is an integer multiple of the first preset period.

27. The dry chemical detection device according to claim 24, 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 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.

28. The dry chemical detection device according to claim 24, characterized in that: 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.

29. The dry chemical detection device according to claim 22, 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.

30. The dry chemical detection device according to claim 29, wherein: 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; Second color block information of the target color block is determined from the second image according to the position of the target color block on the first dry chemical test paper.

31. The dry chemical detection device according to claim 30, characterized in that: 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, including: Each local camera synchronously and periodically photographs the dry chemical test paper on the test paper area corresponding to its own photographing field of view in a first preset period; wherein the second preset period is an integer multiple of the first preset period.

32. The dry chemical detection device according to claim 29, 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; Second color block information of the target color block is determined from the second image according to the position of the target color block on the first dry chemical test paper.

33. The dry chemical detection device according to any one of claims 12 to 32, 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.

34. The dry chemical detection device according to claim 33, wherein: The processor determines, according to the comparison result, a detection result of the test item corresponding to the target color block, including: The processor determines a standard detection result corresponding to a standard color curve having the highest similarity to the actual color curve among the plurality of standard color curves as a detection result of the test item corresponding to the target color block.

35. The dry chemical detection device according to claim 8, 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.

36. The dry chemical detection device according to claim 35, characterized in that: The dry chemical detection device also includes a plurality of test paper areas for placing dry chemical test papers; as well as, 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.

37. The dry chemical detection device according to claim 36, characterized in that: The global camera is used to photograph the dry chemical test paper in the at least two test paper areas, including: The global camera periodically photographs the dry chemical test paper located in the at least two test paper areas at a first preset period; wherein the second preset period is an integer multiple of the first preset period.

38. The dry chemical detection device according to claim 35, 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, 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.

39. The dry chemical detection device according to claim 8, characterized in that: The processor calculates the detection result of the test item corresponding to the target color block based on the color block information of the target color block at different times, including: The color block information of the target color block at different times is input into a pre-established machine learning model to obtain the detection results of the test items corresponding to the target color block through the machine learning model.

40. The dry chemical detection device according to claim 8, wherein: The dry chemical detection device also includes a plurality of test paper areas for placing dry chemical test papers; as well as, 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.

41. The dry chemical detection device according to claim 40, characterized in that: 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.

42. The dry chemical detection device according to claim 1 or 8, characterized in that: The biological sample to be tested includes a urine sample, a body fluid sample and / or a vaginal secretion.

43. A dry chemical detection method, characterized in that include: The driving component drives the carrying component so that the dry chemical test paper placed on the carrying component is transported along a preset direction among multiple test paper areas; wherein the multiple test paper areas include a sample addition area, and the dry chemical test paper includes a first dry chemical test paper, the first dry chemical test paper having one or more color blocks, each color block corresponding to a test item; adding the biological sample to be tested to the target color block in the first dry chemical test paper transported to the sample adding area by a sample adding component; photographing the first dry chemical test paper using a global camera after the sample adding component adds the biological sample to the target color block of the first dry chemical test paper, so as to obtain at least two images of the first dry chemical test paper at different photographing times; obtaining the actual color of the target color block at different times based on at least two images of the first dry chemical test paper taken at different times; Calculate the detection results of the test items corresponding to the target color block according to the actual colors of the target color block at different times and multiple sets of standard colors.

44. The dry chemical detection method according to claim 43, wherein: The driving component is used to drive the carrying component so that the dry chemical test paper placed on the carrying component is transported in the plurality of test paper areas along a preset direction at a second preset period; The step of obtaining the actual color of the target color block at different times based on at least two images of the first dry chemical test paper taken at different times includes: For the image at any one of the at least two images taken at different times, the position of the first dry chemical test paper in the image at any one of the images is determined based on the second preset period, the image at any one of the images and the position of the sample addition area, and based on the position of the image at any one of the images and the position of the target color block on the first dry chemical test paper, the actual color of the target color block in the first dry chemical test paper is obtained from the image at any one of the images taken.

45. The dry chemical detection method according to claim 43, wherein: 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; Among the at least two images of the first dry chemical test paper taken at different times, there is an image taken at a target time, and the image taken at the target time includes the first dry chemical test paper and the second dry chemical test paper; the global camera is further configured to capture an image at another time different from the target time, and the image includes the second dry chemical test paper; The dry chemical detection method also includes: obtaining the actual color of a color block of the second dry chemical test paper at different times based on the image taken at the target time and the image taken at the other time, and calculating the detection result of the test item corresponding to the color block based on the actual color of the color block at different times.

46. ​​A dry chemical detection method, characterized in that include: Adding a biological sample to be tested to a color block of a dry chemical test paper located in the test paper area by a sample adding component, wherein 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; After the sample adding component adds the biological sample to the target color block of the first dry chemical test paper, the first dry chemical test paper is photographed by an imaging component to obtain a plurality of images; wherein the plurality of images include at least a first image and a second image, wherein the first image and the second image are photographed at different times; 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.

47. The dry chemical detection method according to claim 46, 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.

48. The dry chemical detection method according to claim 46, 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.

49. The dry chemical detection method according to claim 48, wherein There are multiple test paper areas; 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 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.

50. The dry chemical detection method according to claim 48, wherein There are multiple test paper areas; 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 of the first image includes: For any photographing moment, determining the test paper area where the first dry chemical test paper is located at the any photographing moment based on the second preset period, the any photographing 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: Second color block information of the target color block is determined from the second image according to the position of the target color block on the first dry chemical test paper.

51. The dry chemical detection method according to claim 46, 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.

52. The dry chemical detection method according to claim 51, wherein: The imaging component photographs the first dry chemical test paper after the sample adding component adds the biological sample to the target color block of the first dry chemical test paper to obtain a plurality of images, including: periodically photographing the first dry chemical test paper at a first preset period by the imaging component to obtain the plurality of images; The set reaction time is the time corresponding to M first preset cycles after the target color block of the first dry chemical test paper is added with the biological sample to be tested; accordingly, the first image is an image of the target color block of the first dry chemical test paper taken after the biological sample to be tested is added and after M first preset cycles, where M is a preset positive integer.

53. The dry chemical detection method according to claim 51, wherein: There are multiple test paper areas; 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.

54. The dry chemical detection method according to claim 51, wherein There are multiple test paper areas; 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.

55. The dry chemical detection method according to any one of claims 48 to 54, characterized in that 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.

56. The dry chemical detection method according to claim 46, wherein: There are multiple test paper areas; 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.

57. The dry chemical detection method according to claim 43 or 46, wherein: The biological sample to be tested includes a urine sample, a body fluid sample and / or a vaginal secretion.

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