Food rapid detection colorimetric analysis device based on color distinguishing function of smart phone

Abstract

The utility model relates to the technical field of food colorimetric analysis equipment, in particular to a food rapid detection colorimetric analysis device based on a smart phone color distinguishing function, which comprises an analysis cassette, a sample placing plate, a lighting unit, a power supply unit, a mobile phone placing frame and a smart phone, the sample placing plate is arranged at the inner bottom of the analysis cassette, a sample to be detected is placed on the sample placing plate, the illumination unit is installed in the analysis cassette to provide illumination conditions required by shooting, and the power supply unit is electrically connected with the illumination unit and supplies power to the illumination unit. A shooting opening is formed in the top of the analysis cassette, and the mobile phone placement frame is mounted at the top of the analysis cassette. The device can replace a spectrophotometer to realize quantitative analysis of chemical harmful substances, is relatively low in manufacturing cost and maintenance cost, has no harsh requirements on the use environment, has relatively low requirements on operators, and is suitable for screening and detection of large-batch samples.

Description

Technical Field

[0001] The present application relates to the technical field of food colorimetric analysis equipment, and in particular to a food rapid colorimetric analysis device based on the color resolution function of a smartphone. Background Art

[0002] The chemical colorimetric analysis technology uses a chemical reaction that quickly produces obvious colors to detect the substance to be tested. It has been widely used in the detection of harmful chemical substances such as anionic synthetic detergents, nitrites, formaldehyde, and sulfur dioxide. This technology is represented by spectrophotometry. Spectrophotometry uses the Lambert-Beer law to use a spectrophotometer to determine the concentration of the substance to be tested in the solution. This method has the advantages of high accuracy and a wide linear range.

[0003] After searching, the Chinese patent with application number: 202122565831.1 discloses a multi-sample food detection spectrophotometer, including a spectrophotometer, wherein the two ends of the cuvette are respectively connected to an injection tube and a discharge tube, and the discharge tube is connected to a micro-metering pump; the inlet of the injection tube is connected to a manifold, and the manifold is connected to a flushing valve and a plurality of injection valves, and the flushing valve is connected to the flushing tank through a flushing tube, and the injection valves are connected to reaction vessels through delivery tubes, and the reaction vessels are all installed on a vibration table.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there are the following technical defects that need to be improved:

[0005] The manufacturing and maintenance costs of spectrophotometers are very high, and they have relatively stringent requirements on the operating environment and operators, which limits their development needs in on-site rapid testing and makes them unsuitable for screening and testing of large quantities of samples. Utility Model Content

[0006] The present application provides a food rapid detection colorimetric analysis device based on the color discrimination function of a smartphone to improve the following technical problems:

[0007] The manufacturing and maintenance costs of spectrophotometers are very high, and they have relatively stringent requirements on the operating environment and operators, which limits their development needs in on-site rapid testing and makes them unsuitable for screening and testing of large quantities of samples.

[0008] The present application provides a food rapid detection colorimetric analysis device based on the color discrimination function of a smartphone, which adopts the following technical solution:

[0009] A food rapid inspection colorimetric analysis device based on the color resolution function of a smart phone, comprising an analysis dark box into which external light cannot enter, a sample placement plate, a lighting unit, a power supply unit, a mobile phone placement stand and a smart phone, wherein the sample placement plate is arranged at the inner bottom of the analysis dark box, the sample placement plate is used to place a sample to be inspected, the lighting unit is installed in the analysis dark box to provide lighting conditions required for shooting, the power supply unit is electrically connected to the lighting unit and supplies power to the lighting unit, a shooting port is arranged on the top of the analysis dark box, the mobile phone placement stand is installed on the top of the analysis dark box, the smart phone is horizontally placed on the mobile phone placement stand, the smart phone is used to take a photo of the sample to be inspected on the sample placement plate from the shooting port, and a color analysis program APP with a color resolution function is loaded in the smart phone.

[0010] In an achievable technical solution of the present application, the analysis dark box includes a rectangular box body and a reflective lining, the rectangular box body is formed by connecting a plurality of black opaque plates, and the reflective lining is bonded to the inner surface of the opaque plates.

[0011] In a feasible technical solution of the present application, the opaque plate is made of ABS material, and the reflective lining is white paper.

[0012] In an achievable technical solution of the present application, the sample placement plate is made of polystyrene or ceramic material, and 5-50 sample slots are arranged on the upper surface of the sample placement plate, with adjacent sample slots being arranged at intervals.

[0013] In an achievable technical solution of the present application, the shooting port is a square structure, and the side length of the shooting port is between 3-5 centimeters.

[0014] In a feasible technical solution of the present application, the lighting unit includes a plurality of light strips, and the light strips are horizontally fixed to the middle part of the inner wall of the analysis dark box.

[0015] In an achievable technical solution of the present application, the power supply unit includes a rechargeable mobile power supply and an electric wire, the rechargeable mobile power supply is fixed to the outer side wall of the analysis dark box, the electric wire is connected between the rechargeable mobile power supply and the lighting unit, the electric wire is adhered to the inner and outer surfaces of the analysis dark box, and the electric wire penetrates into the interior of the analysis dark box from the shooting port.

[0016] In an achievable technical solution of the present application, the mobile phone placement stand has a height adjustment function and includes multiple threaded rods, multiple nuts and a support ring. The middle through hole of the support ring is arranged opposite to the shooting port. The threaded rod is vertically fixed to the upper surface of the analysis dark box, and multiple threaded rods are arranged at intervals around the shooting port. The nut is threadedly assembled on the threaded rod, and the nut and the threaded rod are arranged one-to-one. The support ring is vertically slidably assembled on the threaded rod, and the nut is supported on the lower surface of the support ring. The smart phone is placed on the support ring.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] The use of an analytical dark box can reduce interference from environmental factors such as stray light sources. The camera of a smartphone itself is a very good optical detector that can capture clear images of samples to be tested. Information can be extracted and analyzed through the color analysis program APP on the smartphone, that is, the RGB value of the image is extracted using the color analysis program APP on the smartphone. Quantitative analysis of samples can be achieved through a certain algorithm, and the spectrophotometer can be replaced to achieve quantitative analysis of hazardous chemical substances, thereby achieving rapid on-site detection of pollutants. Moreover, the manufacturing and maintenance costs of the entire device are relatively low, the use environment is no longer demanding, and the requirements for operators are relatively low, making it suitable for screening and testing of large quantities of samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a structural schematic diagram of a food rapid detection colorimetric analysis device based on the color discrimination function of a smartphone according to an embodiment of the present application.

[0021] Description of reference numerals:

[0022] 1. Analysis cassette; 11. Rectangular box body; 12. Reflective lining; 100. Shooting port;

[0023] 2. Sample placement plate; 21. Sample slot;

[0024] 3. Lighting unit;

[0025] 4. Power supply unit; 41. Rechargeable mobile power source; 42. Electric wire;

[0026] 5. Mobile phone stand; 51. Threaded rod; 52. Nut; 53. Support ring;

[0027] 6. Smartphone. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] The following is combined with Figure 1 This application is described in further detail.

[0033] The present application embodiment discloses a food rapid detection colorimetric analysis device based on the color discrimination function of a smart phone. Figure 1The food rapid detection colorimetric analysis device based on the color discrimination function of a smartphone includes an analysis dark box 1 into which external light cannot enter, a sample placement plate 2, a lighting unit 3, a power supply unit 4, a mobile phone placement stand 5 and a smart phone 6. The sample placement plate 2 is arranged at the inner bottom of the analysis dark box 1, and the sample placement plate 2 is used to place the sample to be tested. The lighting unit 3 is installed in the analysis dark box 1 to provide the lighting conditions required for shooting. The power supply unit 4 is electrically connected to the lighting unit 3 and supplies power to the lighting unit 3. A shooting port 100 is arranged on the top of the analysis dark box 1. The mobile phone placement stand 5 is installed on the top of the analysis dark box 1. The smart phone 6 is horizontally placed on the mobile phone placement stand 5. The smart phone 6 is used to take a photo of the sample to be tested on the sample placement plate 2 from the shooting port 100. The smart phone 6 is loaded with a color analysis program APP with a color discrimination function.

[0034] The analysis dark box 1 includes a rectangular box body 11 and a reflective lining 12. The rectangular box body 11 is connected by a plurality of black opaque plates. The reflective lining 12 is bonded to the inner surface of the opaque plates. The opaque plates are made of ABS material, and the reflective lining 12 is white paper.

[0035] The sample placement plate 2 is made of polystyrene or ceramic material. 5-50 sample slots 21 are arranged on the upper surface of the sample placement plate 2 , and adjacent sample slots 21 are arranged at intervals.

[0036] In this embodiment, the shooting port 100 is a square structure, and the side length of the shooting port 100 is between 3-5 centimeters. Preferably, the side length of the shooting port 100 is 4 centimeters.

[0037] The lighting unit 3 includes a plurality of light strips (specifically 4 light strips), which are horizontally bonded and fixed to the middle of the inner wall of the analysis dark box 1 .

[0038] The power supply unit 4 includes a rechargeable mobile power supply 41 and a wire 42. The rechargeable mobile power supply 41 is fixed to the outer wall of the analysis dark box 1. The wire 42 is connected between the rechargeable mobile power supply 41 and the lighting unit 3. The wire 42 is attached to the inner and outer surfaces of the analysis dark box 1. The wire 42 penetrates into the interior of the analysis dark box 1 from the shooting port 100.

[0039] In order to facilitate the adjustment of the height difference between the smart phone 6 and the sample placement plate 2, the mobile phone placement stand 5 has a height adjustment function and includes multiple threaded rods 51, multiple nuts 52 and a support ring 53. The middle through hole of the support ring 53 is arranged opposite to the shooting port 100. The threaded rod 51 is vertically fixed to the upper surface of the analysis dark box 1, and the multiple threaded rods 51 are arranged at intervals around the shooting port 100. The nut 52 is threadedly assembled on the threaded rod 51, and the nut 52 and the threaded rod 51 are arranged one by one. The support ring 53 is vertically slidably assembled on the threaded rod 51, and the nut 52 is supported on the lower surface of the support ring 53. The smart phone 6 is placed on the support ring 53.

[0040] When in use, the sample placement plate 2 containing the sample to be tested is placed into the analysis dark box 1, the upper cover of the analysis dark box 1 is closed, the smart phone 6 is placed on the mobile phone placement stand 5, the lens of the smart phone 6 is aimed at the shooting port 100, and then the power supply unit 4 is used to power the lighting unit 3, so that the lighting unit 3 lights up, and the surface of the sample to be tested reflects light of a certain color, and then the smart phone 6 is used to capture the image and the color analysis program APP is used to extract the RGB value of the image. Different colors represent different concentrations of targets, and the target can be quantitatively analyzed based on the RGB value.

[0041] The beneficial technical effects of the food rapid detection colorimetric analysis device based on the color discrimination function of a smartphone in the embodiment of the present application are as follows:

[0042] The use of the analysis dark box 1 can reduce the interference of environmental factors such as stray light sources. The camera of the smart phone 6 itself is a good optical detector, which can take clear images of the samples to be tested. The information can be extracted and analyzed through the color analysis program APP on the smart phone 6, that is, the RGB value of the image is extracted by using the color analysis program APP of the smart phone 6. The quantitative analysis of the sample can be achieved through a certain algorithm. It can replace the spectrophotometer to achieve quantitative analysis of chemical harmful substances, thereby quickly detecting pollutants on site. In addition, the manufacturing cost and maintenance cost of the entire device are relatively low, the use environment is no longer demanding, and the requirements for operators are relatively low. It is suitable for screening and testing of large quantities of samples.

[0043] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the application should be included in the protection scope of the present application.

Claims

1. A food rapid detection colorimetric analysis device based on the color discrimination function of a smart phone, characterized in that: The invention comprises an analysis dark box (1) into which external light cannot enter, a sample placement plate (2), an illumination unit (3), a power supply unit (4), a mobile phone placement stand (5) and a smart phone (6), wherein the sample placement plate (2) is arranged at the inner bottom of the analysis dark box (1), the sample placement plate (2) is used to place a sample to be tested, the illumination unit (3) is installed in the analysis dark box (1) to provide illumination conditions required for shooting, the power supply unit (4) is electrically connected to the illumination unit (3) and supplies power to the illumination unit (3), a shooting port (100) is arranged at the top of the analysis dark box (1), the mobile phone placement stand (5) is installed at the top of the analysis dark box (1), the smart phone (6) is horizontally placed on the mobile phone placement stand (5), the smart phone (6) is used to take a photo of the sample to be tested on the sample placement plate (2) from the shooting port (100), and the camera of the smart phone (6) is an optical detector capable of taking a clear image of the sample to be tested.

2. The food rapid detection colorimetric analysis device based on the color resolution function of a smart phone according to claim 1 is characterized in that: The analysis dark box (1) comprises a rectangular box body (11) and a reflective lining (12); the rectangular box body (11) is formed by connecting a plurality of black opaque plates; and the reflective lining (12) is bonded to the inner surface of the opaque plates.

3. The food rapid detection colorimetric analysis device based on the color resolution function of a smart phone according to claim 2 is characterized in that: The opaque plate is made of ABS material, and the reflective lining (12) is white paper.

4. The food rapid detection colorimetric analysis device based on the color resolution function of a smart phone according to claim 1, characterized in that: The sample placement plate (2) is made of polystyrene or ceramic material, and 5 to 50 sample slots (21) are arranged on the upper surface of the sample placement plate (2), with adjacent sample slots (21) being arranged at intervals.

5. The food rapid detection colorimetric analysis device based on the color resolution function of a smart phone according to claim 1, characterized in that: The shooting port (100) is a square structure, and the side length of the shooting port (100) is between 3 and 5 centimeters.

6. The food rapid detection colorimetric analysis device based on the color resolution function of a smart phone according to claim 2, characterized in that: The lighting unit (3) comprises a plurality of light strips, which are horizontally fixed to the middle of the inner side wall of the analysis dark box (1).

7. The food rapid detection colorimetric analysis device based on the color resolution function of a smart phone according to claim 1, characterized in that: The power supply unit (4) comprises a rechargeable mobile power source (41) and an electric wire (42), wherein the rechargeable mobile power source (41) is fixed to the outer side wall of the analysis dark box (1), and the electric wire (42) is connected between the rechargeable mobile power source (41) and the lighting unit (3), and the electric wire (42) is attached to the inner and outer surfaces of the analysis dark box (1), and the electric wire (42) penetrates into the interior of the analysis dark box (1) from the shooting port (100).

8. The food rapid detection colorimetric analysis device based on the color resolution function of a smart phone according to claim 1, characterized in that: The mobile phone placement stand (5) has a height adjustment function and comprises a plurality of threaded rods (51), a plurality of nuts (52) and a support ring (53); a middle through hole of the support ring (53) is arranged opposite to the shooting port (100); the threaded rod (51) is vertically fixed to the upper surface of the analysis dark box (1), and a plurality of the threaded rods (51) are arranged at intervals around the shooting port (100); the nut (52) is threadedly assembled on the threaded rod (51); the nut (52) and the threaded rod (51) are arranged one-to-one; the support ring (53) is vertically slidably assembled on the threaded rod (51); the nut (52) is supported on the lower surface of the support ring (53); and the smart phone (6) is placed on the support ring (53).

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