Testing device of light sensor

Abstract

The utility model relates to the technical field of light sensors, and provides a testing device of a light sensor, which comprises a rack and a lifting device, a through hole is arranged in the middle of the rack, a photomask is erected above the rack, the photomask is aligned with the through hole, and the photomask is electrically connected to a light source controller; the lifting device comprises a lifting platform aligned to the through hole and a driving assembly for driving the lifting platform to do lifting motion, and the lifting platform is provided with an outline forming a closed space with the inner side surface of the photomask; the lifting platform is provided with at least one fixing part used for fixing a to-be-tested workpiece, a clamping part used for clamping a wiring terminal and an adjusting assembly used for adjusting the position of the clamping part, and the fixing part and the clamping part are arranged on the table top of the lifting platform in a spaced mode. Therefore, the working performance of the light sensor can be automatically tested, the testing efficiency and accuracy are improved, and personal errors are reduced.

Description

Technical Field

[0001] This utility model relates to the field of light sensor technology, and specifically to a testing device for light sensors. Background Technology

[0002] A vehicle's light sensor is a sensor used to detect the intensity of ambient light. It is typically mounted on the windshield. When the external ambient light is insufficient, the light sensor can automatically control the headlights to turn on and can prevent them from remaining on for too long based on the light intensity, thereby ensuring driving safety and reducing energy consumption. Therefore, the accuracy and response speed of the light sensor directly affect the vehicle's automation performance, making the testing of the light sensor's performance particularly important.

[0003] However, existing testing devices usually rely on manual angle adjustment, which is cumbersome and may introduce large errors. They also cannot simulate complex light changes in the driving environment, such as rainy days, as rainwater can affect the working state of the light sensor, resulting in low test accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a testing device for light sensors, which aims to improve the problem of low testing accuracy of existing testing devices.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A testing apparatus for a light sensor, comprising:

[0007] A platform with a through hole in its middle, a photomask mounted on top of the platform, the photomask being aligned with the through hole, and the photomask being electrically connected to a light source controller; and

[0008] The lifting device includes a lifting platform aligned with the through hole and a drive assembly for driving the lifting platform to move up and down. The lifting platform has an outer contour that forms a closed space with the inner side of the light cover.

[0009] The lifting platform is provided with at least one fixing part for fixing the workpiece to be tested, a clamping part for clamping the terminal block, and an adjusting component for adjusting the position of the clamping part. The fixing part and the clamping part are spaced apart on the platform surface of the lifting platform.

[0010] Preferably, it also includes an electrical control module, which includes a communication bus, a control box, an industrial computer, and an operating box. The wiring terminal is electrically connected to the industrial computer through the communication bus. The industrial computer is electrically connected to the light source controller. The control box is electrically connected to the industrial computer, the operating box, and the drive assembly.

[0011] Preferably, the platform is provided with a plurality of support rods for mounting the photomask.

[0012] Preferably, there are three support rods, which are arranged in a triangular pattern on the platform.

[0013] Preferably, a support block is provided at the top of the support rod, and one end of the support block is provided with a strip-shaped slot for clamping the support rod.

[0014] Preferably, the support block is provided with a strip-shaped hole, and a limiting member is slidably disposed in the strip-shaped hole, the limiting member being disposed against the inner sidewall of the photomask.

[0015] Preferably, the adjustment assembly includes two spaced-apart adjustment frames and a first cylinder hinged between the two adjustment frames, and the clamping part is disposed on the drive end of the first cylinder;

[0016] The adjusting frame is provided with at least one arc-shaped sliding groove, and the first cylinder is provided with a convex shaft that slides along the arc-shaped groove.

[0017] Preferably, the fixing part includes a base, a fixing block fixedly disposed on the base, a sliding block slidably disposed on the base, and a second cylinder for driving the sliding block to move closer to or away from the fixing block.

[0018] Preferably, it also includes a transparent cover, which is placed over the lifting platform, and a water inlet pipe is provided on the top of the light cover;

[0019] When the lifting platform and the light cover form the enclosed space, a cavity is formed between the transparent cover, the light cover and the lifting platform, and at least one drain pipe is provided on the platform surface of the lifting platform located at the bottom of the cavity.

[0020] Preferably, the transparent cover and the light cover are hemispherical.

[0021] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0022] 1. This utility model can realize automated testing of the working performance of light sensors, improve testing efficiency and accuracy, and reduce human error.

[0023] 2. This utility model can simulate the test environment of rainy days, thereby testing the accuracy of the light sensor in rainy environments, ensuring the performance stability of the sensor under different weather conditions, and improving the test accuracy. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the lifting device of the light sensor testing apparatus of the present invention descending.

[0025] Figure 2 This is a schematic diagram of the lifting device of the light sensor testing apparatus of the present invention when it is raised;

[0026] Figure 3 This is a partial structural schematic diagram of the testing device for the light sensor described in this utility model;

[0027] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;

[0028] Figure 5 This is a schematic diagram of another embodiment of the testing device for the light sensor described in this utility model;

[0029] Figure 6 This is a partial cross-sectional view of another embodiment of the testing device for the light sensor described in this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Stand; 10. Through hole; 11. Support rod; 111. Support block; 1111. Strip slot;

[0032] 1112, Slotted hole; 11121, Limiting component;

[0033] 2. Photomask; 20. Water inlet pipe;

[0034] 3. Lifting device; 30. Lifting platform; 301. Fixing part; 3011. Base;

[0035] 3012, Fixed clamping block; 3013, Sliding clamping block; 3014, Second cylinder; 302, Clamping part;

[0036] 303, Adjustment assembly; 3031, Adjustment bracket; 30311, Arc-shaped slide groove; 3032, First cylinder;

[0037] 304, drain pipe; 31, drive assembly;

[0038] 4. The workpiece to be tested;

[0039] 5. Wiring terminals;

[0040] 6. Transparent cover; 60. Cavity. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0042] Additionally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are all based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element of this utility model must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0044] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] Example 1

[0046] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment provides a testing device for a light sensor, including a stand 1 and a lifting device 3. A through hole 10 is provided in the middle of the stand 1, and a photomask 2 is mounted on the top of the stand 1. The photomask 2 is aligned with the through hole 10 and is electrically connected to a light source controller (not shown in the figure). The lifting device 3 includes a lifting platform 30 aligned with the through hole 10 and a drive assembly 31 for driving the lifting platform 30 to move up and down. The lifting platform 30 has an outer contour that forms a closed space with the inner side of the photomask 2. The lifting platform 30 is provided with at least one fixing part 301 for fixing the workpiece 4 to be tested, a clamping part 302 for clamping the terminal block 5, and an adjustment assembly 303 for adjusting the position of the clamping part 302. The fixing part 301 and the clamping part 302 are spaced apart on the platform surface of the lifting platform 30.

[0047] Specifically, the light sensor to be tested is fixedly placed on the fixing part 301, and the terminal 5 is clamped and fixed by the clamping part 302. The position of the clamping part 302 can be adjusted by the adjusting component 303 (for example, the angle of the clamping part 302 and the distance from the fixing part 301 can be adjusted), so that the terminal 5 is precisely connected to the workpiece 4 to be tested, ensuring stable signal transmission during the test.

[0048] In actual testing, the workpiece 4 to be tested is placed manually on the fixing part 301, and the clamping part 302 is adjusted by the adjusting component 303 to ensure that the wiring terminal 5 is precisely connected with the workpiece 4 to be tested. Then, the lifting platform 30 is driven to rise by the driving component 31 until the lifting platform 30 and the photomask 2 are tightly fitted to form a closed space. The light source controller is activated, and the light is evenly irradiated by the light source on the photomask 2. Different light intensities can be adjusted to simulate light conditions in different environments, ensuring that the light sensor can be accurately tested in different environments.

[0049] This allows for automated testing of the performance of light sensors, improving testing efficiency and accuracy while reducing human error.

[0050] In this embodiment, an electrical control module is also included. The electrical control module includes a communication bus, a control box, an industrial computer, and an operating box. Terminal 5 is electrically connected to the industrial computer via the communication bus. The industrial computer is electrically connected to the light source controller. The control box is electrically connected to the industrial computer, the operating box, and the drive assembly 31. Specifically, the communication bus is used to communicate with the workpiece 4 under test and to read and write data. The control box can be a PLC (Programmable Logic Controller). The industrial computer is responsible for reading and writing data to the product. The operating box includes a touchscreen, buttons, and indicator lights for operators to monitor and control the testing process in real time.

[0051] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, the platform 1 is provided with several support rods 11 for mounting the photomask 2. There are three support rods 11, which are arranged in a triangular pattern on the platform 1, thereby providing a stable support effect for the photomask 2.

[0052] Furthermore, a support block 111 is provided at the top of the support rod 11, and one end of the support block 111 has a strip-shaped slot 1111 for clamping the support rod 11. A strip-shaped hole 1112 is provided on the support block 111, and a limiting member 11121 is slidably disposed within the strip-shaped hole 1112, abutting against the inner wall of the photomask 2. The support block 111 is clamped onto the support rod 11 through the strip-shaped slot 1111, and its position can be adjusted along the strip-shaped slot 1111 to accommodate photomasks 2 of different sizes. The limiting member 11121 always abuts against the inner wall of the photomask 2, thereby fixing the position of the photomask 2 and ensuring that the photomask 2 will not shift. The limiting member 11121 can also slide within the strip-shaped hole 1112 to allow for fine-tuning according to different sizes of photomasks 2, ensuring that the photomask 2 is securely mounted on the support rod 11.

[0053] like Figure 3 As shown, in this embodiment, the adjustment assembly 303 includes two spaced adjustment frames 3031 and a first cylinder 3032 hinged between the two adjustment frames 3031. The clamping part 302 is disposed on the driving end of the first cylinder 3032. At least one arc-shaped groove 30311 is provided on the adjustment frame 3031, and a convex shaft (not shown in the figure) that slides along the arc-shaped groove is provided on the first cylinder 3032.

[0054] Specifically, the first cylinder 3032 is electrically connected to the control box. The control box drives the first cylinder 3032 to extend or retract, causing the clamping part 302 to move closer to or further away from the fixed part 301. The first cylinder 3032 can also rotate along the trajectory of the arc-shaped slide groove 30311, thereby adjusting the angle of the clamping part 302, making the connection between the terminal 5 and the workpiece 4 under test more precise, and ensuring the accuracy of the test data.

[0055] like Figure 4 As shown, in this embodiment, the fixing part 301 includes a base 3011, a fixing clamp 3012 fixedly disposed on the base 3011, a sliding clamp 3013 slidably disposed on the base 3011, and a second cylinder 3014 for driving the sliding clamp 3013 to move closer to or away from the fixing clamp 3012. The second cylinder 3014 is electrically connected to the control box. After the workpiece 4 to be tested is placed, the control box drives the second cylinder 3014 to move the sliding clamp 3013, which firmly clamps the workpiece 4 to be tested with the fixing clamp 3012, ensuring that it remains stable during the test.

[0056] Example 2

[0057] like Figure 5 and Figure 6As shown, in another alternative embodiment, the light sensor testing device described in Embodiment 1 also includes a transparent cover 6, which is mounted on the lifting platform 30. A water inlet pipe 20 is provided on the top of the light cover 2. When the lifting platform 30 and the light cover 2 form a closed space, a cavity 60 is formed between the transparent cover 6, the light cover 2, and the lifting platform 30. At least one drain pipe 304 is provided on the platform surface of the lifting platform 30 located at the bottom of the cavity 60. The water inlet pipe 20 is connected to an external water source. When the lifting platform 30 and the light cover 2 form a closed space, water flows in from the water inlet pipe 20 and slowly flows down the outer wall of the transparent cover 6 to simulate a rainy day testing environment. Different light intensities are created by the light cover 2 to test the accuracy of the light sensor in a rainy environment, ensuring the performance stability of the sensor under different weather conditions and improving testing accuracy. A drain pipe 304 is also provided at the bottom of the cavity 60 to collect accumulated water after testing. The accumulated water is discharged through the drain pipe 304 to avoid affecting the test results and to allow for recycling.

[0058] In this embodiment, the transparent cover 6 and the light cover 2 are hemispherical to allow water to flow smoothly down, simulating the state of the windshield in a real rainy environment.

[0059] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A testing device for a light sensor, characterized in that, include: A platform with a through hole in its middle, a photomask mounted on top of the platform, the photomask being aligned with the through hole, and the photomask being electrically connected to a light source controller; and The lifting device includes a lifting platform aligned with the through hole and a drive assembly for driving the lifting platform to move up and down. The lifting platform has an outer contour that forms a closed space with the inner side of the light cover. The lifting platform is provided with at least one fixing part for fixing the workpiece to be tested, a clamping part for clamping the terminal block, and an adjusting component for adjusting the position of the clamping part. The fixing part and the clamping part are spaced apart on the platform surface of the lifting platform.

2. The testing apparatus for a light sensor according to claim 1, characterized in that: It also includes an electrical control module, which includes a communication bus, a control box, an industrial computer, and an operating box. The wiring terminal is electrically connected to the industrial computer through the communication bus. The industrial computer is electrically connected to the light source controller. The control box is electrically connected to the industrial computer, the operating box, and the drive assembly.

3. The testing apparatus for a light sensor according to claim 1, characterized in that: The platform is equipped with several support rods for mounting the photomask.

4. The testing apparatus for a light sensor according to claim 3, characterized in that: There are three support rods, which are arranged in a triangular pattern on the platform.

5. The testing apparatus for a light sensor according to claim 3, characterized in that: A support block is provided at the top of the support rod, and a strip-shaped slot for clamping the support rod is provided at one end of the support block.

6. The testing apparatus for a light sensor according to claim 4, characterized in that: The support block is provided with a strip-shaped hole, and a limiting member is slidably disposed in the strip-shaped hole. The limiting member is disposed against the inner side wall of the photomask.

7. The testing apparatus for a light sensor according to claim 1, characterized in that: The adjustment assembly includes two spaced-apart adjustment frames and a first cylinder hinged between the two adjustment frames, with the clamping part disposed on the drive end of the first cylinder; The adjusting frame is provided with at least one arc-shaped sliding groove, and the first cylinder is provided with a convex shaft that slides along the arc-shaped groove.

8. The testing apparatus for a light sensor according to claim 1, characterized in that: The fixing part includes a base, a fixing clamp fixedly disposed on the base, a sliding clamp slidably disposed on the base, and a second cylinder for driving the sliding clamp to move closer to or away from the fixing clamp.

9. The testing apparatus for a light sensor according to claim 1, characterized in that: It also includes a transparent cover, which is placed over the lifting platform, and a water inlet pipe is provided on the top of the light cover; When the lifting platform and the light cover form the enclosed space, a cavity is formed between the transparent cover, the light cover and the lifting platform, and at least one drain pipe is provided on the platform surface of the lifting platform located at the bottom of the cavity.

10. The testing apparatus for a light sensor according to claim 7, characterized in that: The transparent cover and the light cover are hemispherical.

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