Automatic test paper sample soaking detection system and detection method

Abstract

The invention discloses an automatic test paper sample soaking detection system and detection method, and the detection system comprises: a mounting base; the paper storage device is used for storing the test paper and discharging the test paper one by one; the water storage tank is used for storing a to-be-detected water sample for infiltration of the detection test paper for reaction; the air drying device is used for carrying out air drying treatment on the detection test paper soaked with the water sample; the visual identification device is used for performing color identification on the detection test paper completing the reaction so as to output a detection result; and the sampling manipulator is used for taking out the test paper from the paper storage device one by one, and sequentially soaking the test paper in a water sample to be detected in the water storage tank, air-drying the test paper at the air-drying device and shooting the test paper at the visual identification device to realize color identification. According to the invention, automatic detection is realized, all test processes are ensured to be consistent, the standardization of the experimental process is realized, the interference of human factors is reduced, and the precision of the detection result is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality detection, and in particular to an automated test paper sample immersion detection system and a detection method. Background Art

[0002] Water quality testing is one of the key links in scenarios such as environmental water monitoring and drinking water quality control. At present, in the micro-sampling scenario for water quality testing, the sample liquid is usually manually sucked through a liquid taking device such as a pipette or dropper and then dripped onto a test paper. The color of the test paper is compared with a colorimetric card to obtain various indicators in the water sample. However, since the overall process basically relies on manual participation, it is difficult to ensure that the operation method of each experimental process is the same, resulting in differences in the results of each test, which affects the accuracy of the test results. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide an automated test paper sample immersion detection system and detection method, which has the advantages of realizing automated detection, being conducive to the standardization of experimental processes, and improving the accuracy of detection results.

[0004] The purpose of the present invention is achieved by the following technical solutions: According to a first aspect of an embodiment of the present disclosure, there is provided an automated test paper sample immersion detection system, comprising: An installation base is provided, around which a sampling station, a sample dipping station, an air drying station, and a photographing station are arranged in sequence; A paper storage device provided at the sampling station, used for storing the test papers and enabling the test papers to be discharged one by one; A water storage tank provided at the sample dipping station is used to store the water sample to be tested for dipping of the test paper for reaction; An air-drying device provided at the air-drying station is used to air-dry the test paper after being soaked in the water sample; A visual recognition device disposed at the shooting station is used to perform color recognition on the test paper that has completed the reaction to output the test result; and The sampling robot carried by the mounting base is used to take out the test papers from the paper storage device one by one, and sequentially immerse the test papers in the water sample to be tested in the water storage tank, air-dry them in the air-drying device, and photograph them in the visual recognition device to realize color recognition.

[0005] To implement the above technical solution, during testing, the paper storage device stores and discharges the test papers one by one, the sampling robot absorbs and takes out a test paper, and transfers the test paper to the sample immersion station to immerse it in the water storage tank, ensuring that the test paper is completely immersed in the water sample to be tested. After the sample immersion is completed, the sampling robot drives the test paper out of the water storage tank and transfers it to the air-drying station, where the air-drying device air-dries the test paper to remove the residual water sample on the test paper. Then the sampling robot transfers the test paper to the shooting station, where the visual recognition device shoots the test paper, performs color recognition based on the acquired image information, and outputs the corresponding test results by comparing with the standard color card, thereby realizing automated testing, ensuring that all test processes are consistent, realizing standardization of the experimental process, reducing interference from human factors, and improving the accuracy of the test results.

[0006] In some exemplary embodiments, the paper storage device comprises: A paper storage cylinder with an opening at the top, the paper storage cylinder is fixed to the mounting base and is used for storing test papers; a supporting plate movably arranged in the paper storage cylinder, on which the test papers are stacked and placed; and The supporting spring disposed between the supporting plate and the paper storage cylinder is used to support the supporting plate so that the test paper located at the top is substantially flush with the opening of the paper storage cylinder.

[0007] To implement the above technical solution, the test papers are stored in a paper storage tube and stacked on a supporting plate. The supporting plate is elastically supported by a supporting spring so that the test paper at the top is basically flush with the opening of the paper storage tube, and the compression of the supporting spring is linearly related to the total gravity of the supporting plate and the test paper. When a piece of test paper is taken out for testing, the pressure on the supporting spring will be reduced accordingly, and the supporting spring will extend a corresponding length to support the next piece of test paper for the next sampling.

[0008] In some exemplary embodiments, the test strips are carried on a base plate and are stacked on the support plate in a direction in which the base plate is located away from the support plate and the test strips are located close to the support plate.

[0009] To implement the above technical solution, since the test paper is usually soft, a base plate can be provided to provide a basic adsorption surface so that the sampling robot can adsorb and grab the test paper.

[0010] In some exemplary embodiments, a sealing cover is further provided on the paper storage cylinder, and a cover opening mechanism is further provided on the mounting base at one side of the sampling station, wherein the cover opening mechanism is used to open or close the sealing cover.

[0011] To implement the above technical solution, a sealing cover is provided to seal the paper storage tube when no sampling is performed, thereby preventing external moisture from entering and causing the test paper to fail. The sealing cover is opened by an opening mechanism when sampling is required, and after sampling is completed, the paper storage tube is closed by the opening mechanism to achieve sealing again.

[0012] In some exemplary embodiments, the cover opening mechanism includes: Support; a lateral servo unit carried by the support; a longitudinal servo unit carried on the power output end of the lateral servo unit; and, The capping head is carried on the power output end of the longitudinal servo unit, and can be driven by the transverse servo unit and the longitudinal servo unit to move above the paper storage tube, and cooperate with the sealing cover to clamp the sealing cover to open or close the cover.

[0013] To implement the above technical solution, when it is necessary to open the cover, the transverse servo unit first drives the cover opening head to move to the top of the paper storage tube, and then the longitudinal servo unit drives the cover opening head to move downward to cooperate with the sealing cover and clamp the sealing cover, and then the longitudinal servo unit moves upward and resets. During the upward movement, the sealing cover can be opened by the cover opening head, and then the transverse servo unit drives the cover opening head to reset and move it to one side of the paper storage tube, so as not to affect the normal sampling of the sampling robot. After the sampling is completed, the sealing cover can be closed by the cover opening mechanism.

[0014] In some exemplary embodiments, the power output end of the sampling manipulator is connected to a suction cup via an adsorption tube, and the suction cup is used to adsorb and grasp the test paper.

[0015] To implement the above technical solution, the adsorption tube is connected to an external negative pressure device, thereby forming a negative pressure at the suction cup, and the suction cup can stably adsorb and grasp the test paper through the negative pressure.

[0016] In some exemplary embodiments, a drain pipe is connected to the bottom of the water storage tank, and a liquid outlet control valve is connected to the drain pipe.

[0017] By implementing the above technical solution, the water sample in the water storage tank can be easily discharged through the drain pipe and the liquid outlet control valve, so as to replace different water samples for testing.

[0018] In some exemplary embodiments, the air-drying device includes: a liquid collecting box, and a hair dryer disposed in the liquid collecting box for blowing air on the test paper to achieve air drying.

[0019] To implement the above technical solution, when the hair dryer blows air on the test paper, the water sample remaining on the test paper can be blown into the liquid collection box. The air-dried test paper will not cause the water sample to drip, ensuring that the subsequent shooting process will not be affected by water stains.

[0020] In some exemplary embodiments, an inclined mounting plate is provided on one side of the bottom of the liquid collecting box, a vent is provided on the mounting plate, and the hair dryer is installed at the vent.

[0021] To implement the above technical solution, the test paper can be subjected to both horizontal and vertical wind forces at the same time by means of an inclined setting, thereby accelerating the air-drying efficiency.

[0022] In some exemplary embodiments, a drainage groove is formed between the assembly plate and the liquid collecting box, and a drainage pipe is connected to the bottom of the drainage groove.

[0023] By implementing the above technical solution, water samples thrown out during the air-drying process can be accumulated through the drainage groove and discharged through the drainage pipe.

[0024] In some exemplary embodiments, the visual recognition device includes: A shooting seat carried by the mounting base is used to place the test strip that has completed the reaction, and the shooting seat is provided with a shooting port corresponding to the test strip; The camera module carried on the mounting base and corresponding to the shooting port is used for performing shooting processing to realize color recognition.

[0025] To implement the above technical solution, after the air-drying process is completed, the test paper is placed on the shooting seat and located at the shooting port. The shooting port can limit the test paper, so that the shooting position of the camera module is relatively fixed. The test paper is then photographed by the camera module, and color recognition can be performed through the acquired image information.

[0026] In some exemplary embodiments, a calibration sheet is further provided on the photographing seat at one side of the photographing port, which is used as a colorimetric standard for the visual recognition device to identify so as to compare with the test paper and output a test result.

[0027] To implement the above technical solution, since the light intensity of ambient light and fill light will vary slightly over time, by collecting image information of the test paper and the calibration piece under basically the same lighting conditions, the results of colorimetric comparison are more accurate, thereby improving the accuracy of the test results.

[0028] In some exemplary embodiments, a shooting bracket is provided on the mounting base, a position adjustment mechanism is provided on the shooting bracket, the camera module is carried by the position adjustment mechanism, and the position adjustment mechanism is used to drive the camera module to reciprocate between the shooting port and the calibration plate.

[0029] By implementing the above technical solution, the position of the camera module can be adjusted through the position adjustment mechanism to adapt to different lighting conditions. At the same time, the calibration sheet and the test paper can also be photographed in sequence, so that the shooting accuracy is higher.

[0030] In some exemplary embodiments, a waste box is also provided on the mounting frame, and the sampling robot is further used to transfer the photographed test strips to the waste box.

[0031] By implementing the above technical solution, the test paper can be easily recycled through the waste discharge box.

[0032] According to a second aspect of an embodiment of the present disclosure, an automated test paper sample immersion detection method is provided, the method being based on the detection system as described in the first aspect, comprising: The sampling robot takes out a test paper from the paper storage device and keeps the test surface of the test paper facing downward; The test paper is completely immersed in the water sample to be tested for 3-5 seconds to perform a detection reaction, and after the immersion is completed, it is air-dried to remove excess water sample; The air-dried test paper is transferred to the visual recognition device for photographing to achieve color recognition and output the test results; After the shooting process is completed, take out the test paper and wait for the next test.

[0033] By implementing the above technical solution, automated testing is achieved through the above process, and all test processes are guaranteed to remain consistent, standardization of the experimental process is achieved, interference from human factors is reduced, and the accuracy of the test results is improved.

[0034] In some exemplary embodiments, before the sampling robot takes out the test paper from the paper storage container, it also opens the sealing cover through the cover opening mechanism; after the sampling robot takes out the test paper from the paper storage container, it also closes the sealing cover through the cover opening mechanism.

[0035] To implement the above technical solution, a sealing cover is provided to seal the paper storage tube when no sampling is performed, thereby preventing external moisture from entering and causing the test paper to become invalid. The sealing cover is opened by an opening mechanism when sampling is required, and after sampling is completed, the paper storage tube is closed by the opening mechanism to achieve sealing again.

[0036] In some exemplary embodiments, during the photographing process, a position adjustment mechanism drives the camera module to move to the corresponding positions of the calibration sheet and the photographing port in sequence, and photographs the calibration sheet as a colorimetric standard.

[0037] To implement the above technical solution, since the light intensity of ambient light and fill light will vary slightly over time, by collecting image information of the test paper and the calibration piece under basically the same lighting conditions, the results of colorimetric comparison are more accurate, thereby improving the accuracy of the test results.

[0038] In summary, compared with the prior art, the present invention has the following beneficial effects: The embodiment of the present invention provides an automated test paper immersion detection system and a detection method. During detection, a paper storage device stores and discharges test papers one by one, a sampling robot absorbs and takes out a test paper, and transfers the test paper to a sample immersion station to immerse it in a water storage tank, ensuring that the test paper is completely immersed in the water sample to be tested. After the sample immersion is completed, the sampling robot drives the test paper out of the water storage tank and transfers it to an air-drying station, where an air-drying device performs air-drying on the test paper to remove the residual water sample on the test paper. Subsequently, the sampling robot transfers the test paper to a shooting station, where a visual recognition device shoots the test paper, performs color recognition based on the acquired image information, and outputs the corresponding test result by comparing it with a standard color card, thereby realizing automated detection, ensuring that all test processes are consistent, achieving standardization of the experimental process, reducing interference from human factors, and improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The figure is a schematic diagram of the structure of the automated test paper sample immersion detection system in the first embodiment of the present invention.

[0040] Figure 2 It is a schematic diagram of the structure of the paper storage device in the first embodiment of the present invention.

[0041] Figure 3 This is a schematic diagram of the connection structure between the test strip and the base plate in the first embodiment of the present invention.

[0042] Figure 4 It is a schematic structural diagram of a water storage tank in Embodiment 1 of the present invention.

[0043] Figure 5 It is a schematic diagram of the structure of the air-drying device in the first embodiment of the present invention.

[0044] Figure 6 For the present invention Figure 1 The enlarged view of part A in the figure is used to show the structure of the visual recognition device.

[0045] Figure 7It is a schematic diagram of the structure of the automated test paper sample immersion detection system in the second embodiment of the present invention.

[0046] Figure 8 It is a structural schematic diagram of the cover opening mechanism in the second embodiment of the present invention.

[0047] The numbers and letters in the figure represent the corresponding component names: 10. Mounting base; 20. Paper storage container; 21. Paper storage cylinder; 22. Test paper; 23. Support plate; 24. Support spring; 25. Bottom plate; 26. Sealing cover; 30. Water storage tank; 31. Drain pipe; 32. Liquid outlet control valve; 40. Air drying device; 41. Liquid collecting box; 42. Blower; 43. Assembly plate; 44. Ventilation port; 45. Drain trough; 46. Drain pipe; 50. Visual recognition device; 51. Shooting seat; 52. Shooting port; 53. Camera module; 54. Calibration sheet; 55. Shooting bracket; 56. Position adjustment mechanism; 60. Sampling manipulator; 61. Adsorption tube; 62. Suction cup; 70. Cover opening mechanism; 71. Support; 72. Horizontal servo unit; 73. Longitudinal servo unit; 74. Cover opening head; 80. Waste box. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Embodiment 1 like Figures 1 to 6 As shown, the first aspect of the embodiment of the present invention provides an automated test paper immersion detection system, comprising: an installation base 10, around which a sampling station, a sample immersion station, an air drying station, and a shooting station are sequentially arranged; a paper storage device 20 arranged at the sampling station, used to store the test paper 22 and enable the test paper 22 to be discharged one by one; a water storage tank 30 arranged at the sample immersion station, used to store the water sample to be tested for the test paper 22 to be infiltrated for reaction; an air drying device 40 arranged at the air drying station, used to immerse the test paper 22 in the water; The test paper 22 is air-dried after being moistened with the water sample; the visual recognition device 50 is arranged at the shooting station, which is used to perform color recognition on the test paper 22 that has completed the reaction to output the test result; and the sampling robot 60 carried by the mounting base 10 is used to take out the test paper 22 one by one from the paper storage 20, and sequentially soak the test paper 22 in the water tank 30 for the water sample to be tested, store it in the air-drying device 40 for air-drying, and shoot it at the visual recognition device 50 to achieve color recognition.

[0050] Specifically, a circular working platform is provided on the mounting base 10, and the sampling station, sample immersion station, air drying station, and photographing station are arranged around the circular working platform and close to its outer edge. Of course, in some embodiments, the mounting base 10 may also be composed of a plurality of separately arranged brackets, and each bracket corresponds to a work station.

[0051] The paper storage device 20 includes: a paper storage cylinder 21 with an opening at the top, which is fixed to the mounting base 10 and is used to store the test paper 22; a supporting plate 23 movably arranged in the paper storage cylinder 21, and the test paper 22 is stacked and placed on the supporting plate 23; and a supporting spring 24 arranged between the supporting plate 23 and the paper storage cylinder 21, which is used to lift the supporting plate 23 so that the test paper 22 located at the top is basically flush with the opening of the paper storage cylinder 21.

[0052] The paper storage cylinder 21 is cylindrical in shape as a whole, and the test paper 22 is carried on a bottom plate 25, for example, it is fixed on the bottom plate 25 by bonding, and is stacked on the supporting plate 23 in sequence in the direction that the bottom plate 25 is located on the side away from the supporting plate 23 and the test paper 22 is located on the side close to the supporting plate 23. Since the test paper 22 is usually soft, a basic adsorption surface can be provided by setting the bottom plate 25, so that the sampling robot 60 can adsorb and grab the test paper 22; the outer edge of the supporting plate 23 is basically close to the inner wall of the paper storage cylinder 21, so that the supporting plate 23 will not shake violently during the upward sliding process, one end of the supporting spring 24 is fixed to the bottom of the paper storage cylinder 21, and the other end is fixed to the bottom of the supporting plate 23, and the elastic force of the supporting spring 24 can be reasonably set according to Hooke's law, so that after taking out a bottom plate 25 and the test paper 22, the rising distance of the supporting plate 23 is basically the same as the total height of the test paper 22 and the bottom plate 25.

[0053] In some embodiments, a sealing cover 26 is further provided on the paper storage tube 21. The sealing cover 26 can be sealed to the paper storage tube 21 by direct covering or threaded connection. By providing the sealing cover 26, the paper storage tube 21 is sealed when no sampling is taken, thereby preventing external moisture from entering and causing the test paper 22 to fail.

[0054] The test papers 22 are stored in the paper storage tube 21 and stacked on the supporting plate 23. The supporting plate 23 is elastically supported by the supporting spring 24 so that the test paper 22 at the top is basically flush with the opening of the paper storage tube 21, and the compression of the supporting spring 24 is linearly related to the total gravity of the supporting plate 23 and the test paper 22. When a piece of test paper 22 is taken out for testing, the pressure on the supporting spring 24 will be reduced accordingly, and the supporting spring 24 will extend the corresponding length to support the next piece of test paper 22 for the next sampling.

[0055] The sampling robot 60 adopts an existing five-axis or six-axis robot. The sampling robot 60 can be directly fixed to the middle of the mounting base 10, or it can be set to the center position of the mounting base 10 and fixed to the ground. The power output end of the sampling robot 60 is connected to a suction cup 62 through an adsorption tube 61. The suction cup 62 is used to adsorb and grasp the test paper 22. It is connected to an external negative pressure device through the adsorption tube 61, thereby forming a negative pressure at the suction cup 62, and the negative pressure can enable the suction cup 62 to stably adsorb and grasp the test paper 22.

[0056] The water tank 30 can be directly welded and fixed on the mounting base 10, or it can be fastened to the mounting base 10 by bolts. A drain pipe 31 is connected to the bottom of the water tank 30, and a liquid outlet control valve 32 is connected to the drain pipe 31. The liquid outlet control valve 32 can be, for example, a solenoid valve. The water sample in the water tank 30 can be easily discharged through the drain pipe 31 and the liquid outlet control valve 32, so that different water samples can be replaced for testing.

[0057] The air drying device 40 includes: a liquid collecting box 41, and a hair dryer 42 disposed in the liquid collecting box 41 for blowing air on the test paper 22 to achieve air drying. When the hair dryer 42 blows air on the test paper 22, the water sample remaining on the test paper 22 can be blown into the liquid collecting box 41. The test paper 22 after air drying will not cause water sample to drip, ensuring that the subsequent shooting process will not be affected by water stains. Among them, an inclined assembly plate 43 is provided on one side of the bottom of the liquid collecting box 41, and a vent 44 is provided on the assembly plate 43. The hair dryer 42 is installed at the vent 44. The inclined arrangement allows the test paper 22 to be subjected to both horizontal and vertical wind forces at the same time, thereby accelerating the air drying efficiency. In some embodiments, a heating function can also be provided at the air outlet of the hair dryer 42, and the hair is heated at the same time when blowing, so that the blown wind has a certain temperature to further accelerate the air drying efficiency.

[0058] Based on the above-mentioned setting method, a drainage groove 45 is formed between the assembly plate 43 and the liquid collecting box 41. The bottom of the drainage groove 45 is connected to a drainage pipe 46. The drainage pipe 46 can be directly connected to the waste liquid collection box. The water sample thrown out during the air drying process can be accumulated through the drainage groove 45 and discharged through the drainage pipe 46.

[0059] The visual recognition device 50 includes: a shooting seat 51 carried by the mounting base 10, for placing the test paper 22 that has completed the reaction, and a shooting port 52 corresponding to the test paper 22 is provided on the shooting seat 51; a camera module 53 carried by the mounting base 10 and corresponding to the shooting port 52, for performing shooting processing to achieve color recognition; wherein, the shooting port 52 may include a countersunk mouth adapted to the bottom plate 25 and a through port adapted to the test paper 22, the countersunk mouth is used to limit the position of the bottom plate 25, and the through port is used to limit the position of the test paper 22 and can be used for shooting by the camera module 53, the camera module 53 adopts a combination structure of an existing industrial camera and a fill light, it can be understood that the shooting seat 51 can be supported by transparent materials such as glass, and a through port corresponding to the shooting seat 51 is also opened on the mounting base 10, so that the camera module 53 can achieve effective shooting.

[0060] After the air-drying process is completed, the test paper 22 is placed on the shooting seat 51 and located at the shooting port 52. The shooting port 52 can limit the test paper 22, so that the shooting position of the camera module 53 is relatively fixed. The test paper 22 is then photographed by the camera module 53, and color recognition can be performed through the acquired image information.

[0061] Furthermore, a calibration sheet 54 is provided on one side of the shooting port 52 of the shooting base 51, which is used as a colorimetric standard for the visual recognition device 50 to identify so as to output the detection result by comparing it with the test paper 22. The calibration sheet 54 is a standard color card. Since the light intensity of the ambient light and the fill light will vary slightly over time, by collecting image information of the test paper 22 and the calibration sheet 54 under basically the same lighting conditions, the result of colorimetric comparison is more accurate, thereby improving the accuracy of the detection result.

[0062] In some embodiments, the calibration sheet 54 may also include a first calibration sheet and a second calibration sheet. The first calibration sheet is used to calibrate the light intensity of the fill light. In this case, the first calibration sheet needs to be a physical object, and the second calibration sheet is used to identify the test results of the test paper 22 after the reaction is completed. In this case, the second calibration sheet can be a physical object or electronic information stored in the system.

[0063] A shooting bracket 55 is provided on the mounting base 10, and a position adjustment mechanism 56 is provided on the shooting bracket 55. The camera module 53 is carried by the position adjustment mechanism 56. The position adjustment mechanism 56 is used to drive the camera module 53 to move back and forth between the shooting port 52 and the calibration piece 54. The position adjustment structure adopts the existing servo screw mechanism. The position of the camera module 53 can be adjusted through the position adjustment mechanism 56 to adapt to different lighting conditions. At the same time, it can also realize the calibration piece 54 and the test paper 22 to be photographed respectively in sequence, so that the shooting accuracy is higher.

[0064] In order to facilitate the recovery of the test paper 22 after testing, a waste box 80 is also provided on the mounting frame, and the sampling robot 60 is also used to transfer the test paper 22 after photographing to the waste box 80 .

[0065] During the test, the paper storage 20 stores and discharges the test paper 22 one by one, the sampling manipulator 60 absorbs and takes out a test paper 22, and transfers the test paper 22 to the sample immersion station to immerse it in the water storage tank 30, ensuring that the test paper 22 is completely immersed in the water sample to be tested. After the sample immersion is completed, the sampling manipulator 60 drives the test paper 22 to leave the water storage tank 30 and transfers it to the air-drying station, and the air-drying device 40 air-dries the test paper 22 to remove the residual water sample on the test paper 22. Then the sampling manipulator 60 transfers the test paper 22 to the shooting station, and the visual recognition device 50 shoots the test paper 22, performs color recognition according to the acquired image information, and outputs the corresponding test result by comparing it with the standard color card. Finally, the test paper 22 that has been tested is transferred to the waste box 80, thereby realizing automated testing, ensuring that all test processes are consistent, realizing standardization of the experimental process, reducing interference from human factors, and improving the accuracy of the test results.

[0066] The second aspect of the embodiment of the present invention further provides an automated test paper sample dipping detection method, which is based on the detection system of the first aspect and includes: S100, the sampling robot 60 takes out a test paper 22 from the paper storage 20, and keeps the test surface of the test paper 22 facing downward. In actual use, the test paper 22 is carried on a base plate 25, for example, bonded and fixed on the base plate 25, and is stacked on the supporting plate 23 in sequence with the base plate 25 on top and the test paper 22 on the bottom. Therefore, when the sampling robot 60 grabs the test paper 22, the test surface of the test paper 22 naturally faces downward.

[0067] S200, completely immerse the test paper 22 in the water sample to be tested for 3 to 5 seconds to perform a detection reaction, and air-dry it after the immersion is completed to remove excess water sample. The water storage tank 30 and the air-drying device 40 are arranged adjacent to each other. When the sampling robot 60 moves from the water storage tank 30 to the air-drying device 40, excess water sample can directly drip into the liquid collection box 41 to avoid contaminating the mounting frame.

[0068] S300, transferring the air-dried test paper 22 to the visual recognition device 50 for photographing to realize color recognition and output the test result.

[0069] Specifically, when shooting, a position adjustment mechanism 56 drives the camera module 53 to move to the corresponding positions of the calibration plate 54 and the shooting port 52 in sequence, and shoots the calibration plate 54 as a colorimetric standard. Since the light intensity of the ambient light and the fill light will vary slightly over time, by collecting image information of the test paper 22 and the calibration plate 54 under basically the same lighting conditions, the results of colorimetric comparison are more accurate, thereby improving the accuracy of the test results.

[0070] S400 , after the photographing process is completed, the test paper 22 is taken out and waits for the next test. The test paper 22 taken out by the sampling robot 60 can be directly placed in the waste box 80 .

[0071] Through the above process, automated testing is achieved, and all test processes are guaranteed to be consistent, thus achieving standardization of the experimental process, reducing interference from human factors, and improving the accuracy of test results.

[0072] Embodiment 2 The difference between this embodiment and the first embodiment is that: in this embodiment, Figure 7 and Figure 8 As shown, a cover opening mechanism 70 is also provided on one side of the mounting base 10 located at the sampling station. The cover opening mechanism 70 is used to open or close the sealing cover 26. The sealing cover 26 is opened by the cover opening mechanism 70 when sampling is required, and the paper storage tube 21 is closed by the cover opening mechanism 70 after the sampling is completed to achieve sealing again.

[0073] Specifically, the cover opening mechanism 70 includes: a support 71; a transverse servo unit 72 carried by the support 71; a longitudinal servo unit 73 carried by the power output end of the transverse servo unit 72; and an open cover head 74 carried by the power output end of the longitudinal servo unit 73. The open cover head 74 can be driven by the transverse servo unit 72 and the longitudinal servo unit 73 to move above the paper storage tube 21, and cooperate with the sealing cover 26 to clamp the sealing cover 26 to open or close the cover.

[0074] Both the transverse servo unit 72 and the longitudinal servo unit 73 can adopt a servo screw mechanism. If the sealing cover 26 is threadedly connected to the paper storage tube 21, the opening head 74 can be connected to a servo motor, and the servo motor drives the opening mouth to rotate to open the cover. A rubber pad can also be provided on the inner side of the opening head 74 to increase the friction between the sealing cover 26 and facilitate the opening action.

[0075] When it is necessary to open the cover, the transverse servo unit 72 first drives the cover opening head 74 to move to the top of the paper storage tube 21, and then the longitudinal servo unit 73 drives the cover opening head 74 to move downward to cooperate with the sealing cover 26 and clamp the sealing cover 26, and then the longitudinal servo unit 73 moves upward and resets. During the upward movement, the sealing cover 26 can be opened by the cover opening head 74, and then the transverse servo unit 72 drives the cover opening head 74 to reset and move it to one side of the paper storage tube 21, so as not to affect the normal sampling of the sampling robot 60. After the sampling is completed, the sealing cover 26 can be closed by the cover opening mechanism 70.

[0076] The embodiment of the present invention further provides an automated test paper sample dipping detection method, which is implemented based on the above detection system and includes: S100, the sampling robot 60 takes out a test paper 22 from the paper storage 20, and keeps the test surface of the test paper 22 facing downward. In actual use, the test paper 22 is carried on a base plate 25, for example, bonded and fixed on the base plate 25, and is stacked on the supporting plate 23 in sequence with the base plate 25 on top and the test paper 22 on the bottom. Therefore, when the sampling robot 60 grabs the test paper 22, the test surface of the test paper 22 naturally faces downward.

[0077] Before the sampling robot 60 takes out the test paper 22 from the paper storage container 20, the sealing cover 26 is opened by the cover opening mechanism 70; after the sampling robot 60 takes out the test paper 22 from the paper storage container 20, the sealing cover 26 is closed by the cover opening mechanism 70; the sealing cover 26 is provided to seal the paper storage tube 21 when no sampling is performed, thereby preventing external moisture from entering and causing the test paper 22 to fail. The sealing cover 26 is opened by the cover opening mechanism 70 when sampling is required, and after the sampling is completed, the paper storage tube 21 is closed by the cover opening mechanism 70 to achieve sealing again.

[0078] S200, completely immerse the test paper 22 in the water sample to be tested for 3 to 5 seconds to perform a detection reaction, and air-dry it after the immersion is completed to remove excess water sample. The water storage tank 30 and the air-drying device 40 are arranged adjacent to each other. When the sampling robot 60 moves from the water storage tank 30 to the air-drying device 40, excess water sample can directly drip into the liquid collection box 41 to avoid contaminating the mounting frame.

[0079] S300, transferring the air-dried test paper 22 to the visual recognition device 50 for photographing to realize color recognition and output the test result.

[0080] Specifically, when shooting, a position adjustment mechanism 56 drives the camera module 53 to move to the corresponding positions of the calibration plate 54 and the shooting port 52 in sequence, and shoots the calibration plate 54 as a colorimetric standard. Since the light intensity of the ambient light and the fill light will vary slightly over time, by collecting image information of the test paper 22 and the calibration plate 54 under basically the same lighting conditions, the results of colorimetric comparison are more accurate, thereby improving the accuracy of the test results.

[0081] S400 , after the photographing process is completed, the test paper 22 is taken out and waits for the next test. The test paper 22 taken out by the sampling robot 60 can be directly placed in the waste box 80 .

[0082] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which are equivalent modifications and improvements made to the above embodiments based on the essential technology of the present invention, and all of them belong to the protection scope of the present invention.

Claims

1. An automated test paper sample immersion detection system, characterized in that: include: An installation base is provided, around which a sampling station, a sample dipping station, an air drying station, and a photographing station are arranged in sequence; A paper storage device provided at the sampling station, used for storing the test papers and enabling the test papers to be discharged one by one; A water storage tank provided at the sample dipping station is used to store the water sample to be tested for dipping of the test paper for reaction; An air-drying device provided at the air-drying station is used to air-dry the test paper after being soaked in the water sample; A visual recognition device disposed at the shooting station is used to perform color recognition on the test paper that has completed the reaction to output the test result; as well as, The sampling robot carried by the mounting base is used to take out the test papers from the paper storage device one by one, and sequentially immerse the test papers in the water sample to be tested in the water storage tank, air-dry them in the air-drying device, and photograph them in the visual recognition device to realize color recognition.

2. The automated test paper sample immersion detection system according to claim 1, characterized in that: The paper storage device comprises: A paper storage cylinder with an opening at the top, the paper storage cylinder is fixed to the mounting base and is used for storing test papers; a supporting plate movably arranged in the paper storage cylinder, on which the test papers are stacked and placed; and The supporting spring disposed between the supporting plate and the paper storage cylinder is used to support the supporting plate so that the test paper located at the top is substantially flush with the opening of the paper storage cylinder.

3. The automated test paper sample immersion detection system according to claim 2, characterized in that: The test strips are carried on a bottom plate and are stacked on the support plate in sequence in a direction that the bottom plate is located at a side away from the support plate and the test strips are located at a side close to the support plate.

4. The automated test paper sample immersion detection system according to claim 2 or 3, characterized in that: The paper storage cylinder is also provided with a sealing cover, and the mounting base is also provided with a cover opening mechanism on one side of the sampling station, and the cover opening mechanism is used to open or close the sealing cover.

5. The automated test paper sample immersion detection system according to claim 4, characterized in that: The cover opening mechanism comprises: Support; a lateral servo unit carried by the support; a longitudinal servo unit carried on the power output end of the lateral servo unit; and, The capping head is carried on the power output end of the longitudinal servo unit, and can be driven by the transverse servo unit and the longitudinal servo unit to move above the paper storage tube, and cooperate with the sealing cover to clamp the sealing cover to open or close the cover.

6. The automated test paper sample immersion detection system according to claim 1, characterized in that: The power output end of the sampling manipulator is connected with a suction cup through an adsorption tube, and the suction cup is used for adsorbing and grasping the test paper.

7. The automated test paper sample immersion detection system according to claim 1, characterized in that: The bottom of the water storage tank is connected with a liquid discharge pipe, and the liquid discharge pipe is connected with a liquid outlet control valve.

8. The automated test paper sample immersion detection system according to claim 1, characterized in that: The air-drying device comprises: a liquid collecting box, and a hair dryer arranged in the liquid collecting box and used for blowing air on the test paper to achieve air-drying treatment.

9. The automated test paper sample immersion detection system according to claim 8, characterized in that: A slanted mounting plate is provided on one side of the bottom of the liquid collecting box. A vent is provided on the mounting plate. The hair dryer is installed at the vent.

10. The automated test paper sample immersion detection system according to claim 9, characterized in that: A drainage groove is formed between the assembly plate and the liquid collecting box, and a drainage pipe is connected to the bottom of the drainage groove.

11. The automated test paper sample immersion detection system according to claim 1 or 3, characterized in that: The visual recognition device comprises: A shooting seat carried by the mounting base is used to place the test strip that has completed the reaction, and the shooting seat is provided with a shooting port corresponding to the test strip; The camera module carried on the mounting base and corresponding to the shooting port is used for performing shooting processing to realize color recognition.

12. The automated test paper sample immersion detection system according to claim 11, characterized in that: A calibration sheet is also provided on one side of the shooting port of the shooting seat, which is used as a colorimetric standard for the visual recognition device to identify and compare with the test paper to output the test result.

13. The automated test paper sample immersion detection system according to claim 12, characterized in that: The mounting base is provided with a shooting bracket, the shooting bracket is provided with a position adjustment mechanism, the camera module is carried by the position adjustment mechanism, and the position adjustment mechanism is used to drive the camera module to move back and forth between the shooting port and the calibration plate.

14. The automated test paper sample immersion detection system according to claim 9, characterized in that: The mounting frame is also provided with a waste box, and the sampling manipulator is also used to transfer the photographed test paper to the waste box.

15. An automated test paper sample immersion detection method, characterized in that: The method is based on the detection system according to any one of claims 1 to 14, comprising: The sampling robot takes out a test paper from the paper storage device and keeps the test surface of the test paper facing downward; The test paper is completely immersed in the water sample to be tested for 3-5 seconds to perform a detection reaction, and after the immersion is completed, it is air-dried to remove excess water sample; The air-dried test paper is transferred to the visual recognition device for photographing to achieve color recognition and output the test results; After the shooting process is completed, take out the test paper and wait for the next test.

16. The automated test paper sample dipping detection method according to claim 15, characterized in that: Before the sampling robot takes out the test paper from the paper storage container, the sealing cover is opened by the cover opening mechanism; after the sampling robot takes out the test paper from the paper storage container, the sealing cover is closed by the cover opening mechanism.

17. The automated test paper sample dipping detection method according to claim 15, characterized in that: When the shooting process is performed, a position adjustment mechanism drives the camera module to move to the corresponding positions of the calibration sheet and the shooting port in sequence, and shoots the calibration sheet as a colorimetric standard.

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