Full-automatic test system for infrared sensor

Abstract

The utility model discloses a full-automatic test system for an infrared sensor. The full-automatic test system comprises a mobile test device for generating infrared radiation; the rotary table device and the mobile testing device are arranged in a spaced mode in the first direction, the rotary table device is provided with an infrared inductor, and the rotary table device is used for obtaining infrared radiation of the mobile testing device at each testing point position and completing infrared induction testing on all the testing point positions based on the infrared radiation; the data processing device is arranged in the rotary table device, is in signal connection with the mobile testing device, is electrically connected with the rotary table device, controls the mobile testing device to move back and forth in the first direction, and controls the rotary table device to rotate in situ; the test point location is determined based on the distance between the mobile test device and the rotary table device and the rotation angle of the rotary table device. According to the invention, through the linear motion of the mobile test device and the rotary motion of the rotary table device, the infrared induction test of a plurality of test points is realized, and the device is suitable for different test sites.

Description

Technical Field

[0001] This application relates to the field of infrared sensing testing, and in particular to a fully automated testing system for infrared sensors. Background Technology

[0002] Infrared sensor testing refers to a series of processes that evaluate the performance, functionality, and reliability of infrared sensors. Infrared sensors are devices that detect and respond to infrared radiation, and are widely used in security monitoring, smart homes, automation control, healthcare, and other fields. Existing infrared sensor testing methods include human testing and enclosure testing. Human testing is affected by individual differences in test results and has lower testing efficiency, while enclosure testing systems require a large testing space.

[0003] Therefore, there is an urgent need to research a fully automated testing system for infrared sensors that can be adapted to various testing sites while ensuring high testing efficiency and accuracy. Utility Model Content

[0004] The purpose of this application is to provide a fully automated testing system for infrared sensors to solve the aforementioned technical problems in the prior art, which can be adapted to various testing sites while ensuring high testing efficiency and accuracy.

[0005] This application provides a fully automated testing system for infrared sensors, which includes:

[0006] A mobile testing device used to generate infrared radiation;

[0007] The turntable device is equipped with an infrared sensor. The fully automatic infrared sensor testing system has multiple test points. The turntable device is used to acquire the infrared radiation of the moving testing device at each test point and complete the infrared sensing test of all test points based on the infrared radiation.

[0008] The data processing device is located inside the turntable device, is signal-connected to the moving test device, and is electrically connected to the turntable device. It is used to control the moving test device and / or the turntable device to move, so as to control the fully automatic infrared sensor test system to complete the infrared sensing test of all test points.

[0009] The mobile testing device and the turntable device are spaced apart along the first direction. The data processing device controls the mobile testing device to move back and forth along the first direction and controls the turntable device to rotate in place. The test point is determined based on the distance between the mobile testing device and the turntable device and the rotation angle of the turntable device.

[0010] Furthermore, the mobile testing device includes a mobile device and a target mounted on the mobile device. The target is used to simulate human or animal temperature and generate infrared radiation. The mobile device is used to drive the target to move back and forth along a first direction.

[0011] Furthermore, the side of the target facing the turntable device is the radiating surface, and the radiating area of ​​the target is 0.25m². 2 .

[0012] Furthermore, the mobile testing device is further equipped with a temperature control device, which is located on the side of the target away from the turntable device, and is used to control the temperature range of the target (36.5℃~37.5℃).

[0013] Furthermore, the target is made of metal and its surface is treated with black paint; the infrared emissivity of the target is 0.95.

[0014] Furthermore, the mobile device includes a body and wheels, with the target positioned on the top side of the body and the wheels positioned on the bottom side of the body. The single movement distance of the mobile device is determined by the number of rotations of the wheels.

[0015] Furthermore, the single movement distance of the mobile device is 1m.

[0016] Furthermore, the data processing device includes a synchronous motor and a processor, the processor being electrically connected to the synchronous motor for outputting rotation signals to control the turntable device to rotate; wherein the turntable device rotates a preset rotation angle based on a single rotation signal.

[0017] Furthermore, the angle between the turntable device and the target ranges from -60° to 60°, with a preset rotation angle of 15°.

[0018] Furthermore, the data processing device further includes a load lamp and a current detection circuit. The current detection circuit is electrically connected to the load lamp, the processor, and the infrared sensor. The current detection circuit is used to acquire the current signal converted by the infrared sensor. The load lamp lights up based on the current signal, and the processor determines the test point based on the current signal to complete the infrared sensing test. There is a preset time interval between the infrared sensing test of the first test point and the second test point, and the load lamp turns off within the preset time.

[0019] Unlike existing technologies, the fully automatic infrared sensor testing system of this application includes a moving testing device, a turntable device, and a data processing device. The moving testing device and the turntable device are spaced apart along a straight line. The data processing device is located inside the turntable device, electrically connected to the turntable device, and signal-connected to the moving testing device. The moving testing device generates infrared radiation as a signal source, and the data processing device controls the moving testing device to move back and forth along a first direction and controls the turntable device to rotate in place, thereby automatically adjusting the test points of the fully automatic infrared sensor testing system. At the same time, it automatically completes infrared sensing tests using infrared sensors. The fully automatic infrared sensor testing system of this application has advantages such as low testing site requirements, high testing efficiency, high testing accuracy, and the ability to detect blind spots.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this application. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of an embodiment of the fully automated infrared sensor testing system of this application;

[0023] Figure 2 This is a circuit diagram of the data processing device of this application;

[0024] Figure 3 This is a circuit diagram of the temperature control device of this application;

[0025] Figure 4 This is a schematic diagram of the test points of the fully automated infrared sensor test system of this application;

[0026] Icon labels:

[0027] 1-Fully automatic infrared sensor testing system; 10-Mobile testing device; 11-Mobile device; 111-Body; 112-Wheels; 12-Target; 13-Temperature control device; 20-Turntable device; 30-Data processing device; 31-Processor; 32-Synchronous motor; 33-Load lamp; 34-Current detection circuit; 40-Infrared sensor. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions of this application, the fully automated infrared sensor testing system provided by this application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It is understood that the described embodiments are merely some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] The terms "first," "second," etc., used in this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0030] Because existing infrared sensor testing methods suffer from low testing efficiency and require large testing spaces, this application provides a fully automated infrared sensor testing system. This fully automated infrared sensor testing system has advantages such as low testing space requirements, high testing efficiency, high testing accuracy, and the ability to detect blind spots.

[0031] Please see Figures 1-4 , Figure 1 This is a schematic diagram of an embodiment of the fully automated infrared sensor testing system of this application; Figure 2 This is a circuit diagram of the data processing device of this application; Figure 3 This is a circuit diagram of the temperature control device of this application; Figure 4 This is a schematic diagram of the test points of the fully automated infrared sensor testing system of this application.

[0032] like Figure 1 As shown, the fully automatic testing system 1 for infrared sensors 40 of this application includes a moving testing device 10, a turntable device 20, a data processing device 30, and an infrared sensor 40, wherein the data processing device 30 is disposed inside the turntable device 20. Figure 1 Not shown in the image.

[0033] Specifically, the mobile testing device 10 of this application is used to generate infrared radiation, the turntable device 20 is equipped with an infrared sensor 40, and the fully automatic infrared sensor 40 testing system 1 is set with multiple test points. The turntable device 20 is used to acquire the infrared radiation of the mobile testing device 10 at each test point, and complete the infrared sensing test of all test points based on the infrared radiation. The data processing device 30 is signal-connected to the mobile testing device 10 and electrically connected to the turntable device 20, and is used to control the movement of the mobile testing device 10 and / or the turntable device 20, so as to control the fully automatic infrared sensor 40 testing system 1 to complete the infrared sensing test of all test points.

[0034] The mobile testing device 10 and the turntable device 20 are spaced apart along the first direction. The data processing device 30 controls the mobile testing device 10 to move back and forth along the first direction and controls the turntable device 20 to rotate in place. The test point is determined based on the distance between the mobile testing device 10 and the turntable device 20 and the rotation angle of the turntable device 20.

[0035] Optionally, the first direction in this embodiment can be a straight line, which can be determined according to the test site. For example, when the test site is a long and narrow area, the first direction can be the direction of the side with the longer distance in the test site, such as the longitudinal direction or the transverse direction.

[0036] like Figure 1 As shown, the infrared sensor 40 of this application is disposed on the top of the turntable device 20, perpendicular to the turntable device 20 and facing the moving test device 10. Optionally, the infrared sensor 40 of this application may be a thermoelectric infrared sensor or a photoelectric infrared sensor, used to convert the detected infrared radiation into an electrical signal, such as a voltage signal or a current signal.

[0037] like Figure 1 As shown, the mobile testing device 10 of this application includes a mobile device 11 and a target 12 disposed on the mobile device 11. The target 12 is used to simulate the temperature of a human or animal and generate infrared radiation. The mobile device 11 is used to drive the target 12 to move back and forth along a first direction.

[0038] The side of target 12 facing the turntable device 20 is the radiating surface, and the radiating area of ​​target 12 is 0.25m². 2 The effective radiation area for a typical adult is 0.6m². 2 Considering only the emitting surface directly facing the infrared sensor, it is approximately half of the surface, which is 0.3m. 2 In this application, the radiation area of ​​the target 12 facing the turntable device 20 is 0.25m². 2 The effective area is roughly the same as that of an adult facing the screen.

[0039] The mobile testing device 10 of this application is further provided with a temperature control device 13. The temperature control device 13 is located on the side of the target 12 away from the turntable device 20, that is, on the back side of the radiating surface, and is used to control the temperature range of the target 12 to (36.5℃~37.5℃). Optionally, the temperature control device 13 in this embodiment may be composed of a temperature controller, a solid-state relay, a drive power supply, and a heating element.

[0040] Specifically, this application uses a temperature controller to control the temperature of the target 12, maintaining it at a constant temperature of 37°C, which is close to the human body's constant temperature of 37°C. A heating element and a thermocouple are attached to the side of the target 12 away from the radiating surface. The heating element is electrically connected to a drive power supply, and the thermocouple is electrically connected to the temperature controller. The temperature controller is set to 37°C ± 0.5°C. When the thermocouple temperature is below 36.5°C, the temperature control device 13 will continue heating; when the thermocouple temperature reaches above 37.5°C, the temperature control device 13 will stop heating to maintain a constant temperature.

[0041] Furthermore, the target 12 is made of metal, and its surface is treated with black paint; the infrared emissivity of the target 12 is 0.95.

[0042] Further, the mobile device 11 includes a body 111 and wheels 112. The target 12 is disposed on the top side of the body 111, and the wheels 112 are disposed on the bottom side of the body 111. The single movement distance of the mobile device 11 is determined by the number of rotations of the wheels 112. Optionally, this application sets the single movement distance of the mobile device 11 to 1m. Optionally, in other embodiments, the single movement distance of the mobile device 11 can also be set according to the size of the actual test site and the requirements of test accuracy.

[0043] like Figure 2 As shown, the data processing device 30 of this application includes a processor 31, a synchronous motor 32, a load lamp 33, and a current detection circuit 34. The processor 31 is electrically connected to the synchronous motor 32 and the load lamp 33; the synchronous motor 32 is electrically connected to the turntable device 20; the load lamp 33 is electrically connected to the current detection circuit 34; and the current detection circuit 34 is electrically connected to the infrared sensor 40.

[0044] Specifically, the processor 31 is electrically connected to the synchronous motor 32 and is used to output a rotation signal to control the turntable device 20 to rotate; wherein the turntable device 20 rotates a preset rotation angle based on a single rotation signal.

[0045] Optionally, the processor 31 may have automatic testing software stored in its memory. It can acquire test signals through a USB to 485 converter module, and then send pulse switching signals to the synchronous motor 32 to drive the synchronous motor 32. The synchronous motor 32 drives the turntable device 20 to rotate to the corresponding angle position.

[0046] In this application, the angle between the turntable device 20 and the target 12 is set to a range of (-60° to 60°), with a preset rotation angle of 15°. Figure 4 As shown, with the turntable device 20 as the origin, the infrared radiation of the target 12 at its current position is measured. Points at the same angle are spaced 1m apart, and adjacent angles are spaced 15° apart. Completing all infrared sensing tests yields the following data: Figure 4 The test point location map.

[0047] Specifically, after all the angles at the distance of the target 12 have been tested, the mobile device 11 drives the target 12 to automatically retreat by 1m, and controls the turntable device 20 to rotate to an angle of -60° with the target 12, and then tests all angles again.

[0048] Furthermore, the current detection circuit 34 of this application is electrically connected to the load lamp 33, the processor 31, and the infrared sensor 40. The current detection circuit 34 is used to acquire the current signal converted by the infrared sensor 40. The load lamp 33 lights up based on the current signal, and the processor 31 determines the test point based on the current signal to complete the infrared sensing test. Optionally, the current detection circuit 34 can also be used to acquire the voltage signal converted by the infrared sensor 40, and then convert the acquired voltage signal into a corresponding current signal.

[0049] The infrared sensing test interval between the first and second test points has a preset time, and the load lamp 33 is turned off within the preset time. Optionally, the preset time can be set to 10 seconds, which is the maximum sensing time of the infrared sensor. If infrared radiation is not detected within the preset time, it proves that the test point is a blind spot of the fully automatic infrared sensor test system 1.

[0050] Specifically, the testing process of the fully automated infrared sensor testing system 1 of this application is as follows:

[0051] 1. System Connection: Successfully connect the turntable device 40 with the software stored in the processor 31.

[0052] 2. Parameter settings: Set parameters such as interval angle, angle range, distance interval, maximum distance, and scanning time in the software.

[0053] 3. Start Test: Click Start. The infrared sensor fully automatic test system 1 will automatically start testing from a point 1m away at a -60° angle. The test scanning time for each point is 10s.

[0054] 4. Result judgment: If infrared radiation generated by target 12 is detected within 10 seconds, load lamp 33 will light up, and current detection circuit 34 will detect current. The software will display a green dot, indicating that the test at that point is successful; otherwise, a red dot will be displayed, indicating that the point is a test blind zone.

[0055] Specifically, if infrared radiation from target 12 is detected within 10 seconds, load lamp 33 will light up, and current detection circuit 34 will detect current. The software will then display a green dot at this point, indicating that the test at this point is successful. If infrared radiation from target 12 is not detected within 10 seconds, load lamp 33 will not light up, and current detection circuit 34 will not detect current. The software will then display a red dot at this point, indicating that the test at this point is NG and is a test blind zone.

[0056] 5. Angle switching: After the first angle point test is completed, the turntable device 20 rotates to the second angle point according to the set interval angle, and the test begins after the load lamp 33 has been off for 10 seconds.

[0057] 6. Distance switching: After completing all angle tests at the current distance, the mobile device 11 with the target 12 fixed on it automatically moves to the next distance point, and the turntable device 20 returns to the initial angle point to start a new round of testing.

[0058] 7. Repeat the test: Test all the set distance and angle points in sequence according to the above process until all tests are completed.

[0059] This application obtains infrared sensing test results through the aforementioned tests. By analyzing the test results, it is possible to determine the sensing performance of the infrared sensor 40 at different distances and angles, and to derive its effective sensing distance and angle range. Secondly, by sequentially performing infrared sensing tests on different test points, this application can identify blind spots that the infrared sensor 40 cannot detect, providing a basis for product improvement and optimization.

[0060] The fully automatic infrared sensor testing system 1 of this application has the advantages of low testing site requirements, high testing efficiency, high testing accuracy, and the ability to detect blind spots.

[0061] The fully automated infrared sensor testing system 1 of this application cleverly divides the moving parts: distance movement occurs at the infrared emitting end, i.e., at the target 12, and angular movement occurs at the infrared sensor receiving end, i.e., at the turntable device 20. Therefore, the testing site only requires a narrow and elongated area, eliminating the need for a large site, and providing high site flexibility to adapt to various spatial environments. In other words, the fully automated infrared sensor testing system 1 does not rely on a fixed site, can be flexibly arranged, and facilitates testing in different locations without requiring large-scale modifications or adjustments to the site.

[0062] The fully automated infrared sensor testing system 1 of this application is software-controlled throughout the entire testing process. After parameter settings, all actions are completed automatically without manual intervention, significantly improving testing efficiency and saving manpower and time costs. Furthermore, the fully automated infrared sensor testing system 1 of this application can simultaneously test multiple distance and angle points, quickly covering the entire testing range, and can complete testing tasks more efficiently compared to traditional methods.

[0063] The target 12 in this application simulates real-person infrared radiation, avoiding the influence of individual differences in real people on the response of infrared sensors, making the test results more accurate and reliable.

[0064] The fully automated infrared sensor testing system 1 of this application precisely sets and controls test parameters, such as interval angle, angle range, distance interval, maximum distance, and scanning time, through software, ensuring the consistency and accuracy of test conditions and thus improving the accuracy of test results. Simultaneously, the fully automated infrared sensor testing system 1 automatically detects the infrared radiation sensing at each test point and displays the test results through software, avoiding errors caused by human judgment and recording. Furthermore, the fully automated infrared sensor testing system 1 of this application can not only test the sensing distance and angle range of the infrared sensor 40, but also accurately identify its sensing blind spots, providing important basis for product improvement and optimization, and contributing to improving the overall performance and reliability of the infrared sensor 40.

[0065] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A fully automated testing system for infrared sensors, characterized in that, include: A mobile testing device for generating infrared radiation; A turntable device is provided, which is equipped with an infrared sensor. The fully automatic infrared sensor testing system is set with multiple test points. The turntable device is used to acquire the infrared radiation of the mobile testing device at each test point and complete the infrared sensing test of all test points based on the infrared radiation. A data processing device is disposed inside the turntable device, is signal-connected to the mobile testing device, and is electrically connected to the turntable device. It is used to control the mobile testing device and / or the turntable device to move, so as to control the fully automatic infrared sensor testing system to complete the infrared sensing test of all the test points. The mobile testing device and the turntable device are spaced apart along a first direction. The data processing device controls the mobile testing device to move back and forth along the first direction and controls the turntable device to rotate in place. The test point is determined based on the distance between the mobile testing device and the turntable device and the rotation angle of the turntable device.

2. The fully automatic testing system for infrared sensors according to claim 1, characterized in that, The mobile testing device includes a mobile device and a target mounted on the mobile device. The target is used to simulate the temperature of a human or animal and generate infrared radiation. The mobile device is used to drive the target to move back and forth along the first direction.

3. The fully automated infrared sensor testing system according to claim 2, characterized in that, The side of the target facing the turntable device is the radiating surface, and the radiating area of ​​the target is 0.25m². 2 .

4. The fully automatic testing system for infrared sensors according to claim 2, characterized in that, The mobile testing device is further provided with a temperature control device, which is located on the side of the target away from the turntable device, and is used to control the temperature range of the target to be (36.5℃~37.5℃).

5. The fully automated infrared sensor testing system according to claim 2, characterized in that, The target is made of metal and its surface is treated with black paint; the infrared emissivity of the target is 0.

95.

6. The fully automatic testing system for infrared sensors according to claim 2, characterized in that, The mobile device includes a body and wheels. The target is disposed on the top side of the body, and the wheels are disposed on the bottom side of the body. The single movement distance of the mobile device is determined by the number of rotations of the wheels.

7. The fully automated infrared sensor testing system according to claim 6, characterized in that, The mobile device moves 1m in a single movement.

8. The fully automatic testing system for infrared sensors according to claim 2, characterized in that, The data processing device includes a synchronous motor and a processor. The processor is electrically connected to the synchronous motor and is used to output a rotation signal to control the turntable device to rotate through the synchronous motor. The turntable device rotates a preset rotation angle based on a single rotation signal.

9. The fully automatic testing system for infrared sensors according to claim 8, characterized in that, The angle between the turntable device and the target is in the range of (-60° to 60°), wherein the preset rotation angle is 15°.

10. The fully automatic testing system for infrared sensors according to claim 8, characterized in that, The data processing device further includes a load lamp and a current detection circuit. The current detection circuit is electrically connected to the load lamp, the processor, and the infrared sensor. The current detection circuit is used to acquire a current signal converted by the infrared sensor. The load lamp lights up based on the current signal, and the processor determines the test point based on the current signal to complete the infrared sensing test. The infrared sensing test interval between the first test point and the second test point is preset, and the load lamp turns off within the preset time.

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