Performance test device and test method

Abstract

The invention provides a performance testing device and method, and the device is at least used for the performance testing of an HUD product, and at least comprises a motion control assembly which is used for moving a testing tool and a visual camera to a testing position, fixing a to-be-tested product through the testing tool, and controlling a projection medium to be at a preset inclination angle; the calibration assembly is used for calibrating the to-be-tested product, the visual camera and the projection medium; and the upper computer is used for testing the first performance of the to-be-tested product so as to output a first performance test result, acquiring a calibration result of the calibration assembly, performing a second performance test on the to-be-tested product according to the calibration result, and outputting a second performance test result. According to the technical scheme, an effective testing scheme is provided for the HUD product, and the automation degree and compatibility of performance testing are effectively improved.

Description

Technical Field

[0001] The present application belongs to the field of automated testing technology, and specifically relates to a performance testing device and a testing method. Background Art

[0002] HUD (Head-Up Display) technology projects vehicle driving information directly onto the windshield in front of the driver's line of sight through optical principles, allowing the driver to obtain important information without lowering his head, thereby reducing the safety hazards caused by the diversion of vision. Based on the above optical principles, the existing technology mainly uses host computers and test equipment to perform HUD function testing. The accuracy of the HUD position, windshield angle, and camera position all determine the accuracy of the image test.

[0003] Currently, most existing testing solutions are to implement HUD functional testing by designing a set of test equipment. However, there are problems such as many functional requirements and large product differences, which lead to poor equipment compatibility, and many devices have a low degree of automation and are not fully automated. Summary of the invention

[0004] In order to solve the above technical problems, the present application proposes a performance testing device and a testing method with high compatibility and high degree of automation.

[0005] Specifically, the present application proposes a performance testing device, comprising:

[0006] The motion control component is used to move the test fixture and the visual camera to the test position, so as to fix the product to be tested through the test fixture, and control the projection medium to have a preset tilt angle.

[0007] The calibration component is used to calibrate the product to be tested, the visual camera and the projection medium.

[0008] And, the host computer is used to test the first performance of the product to be tested to output the first performance test result, and obtain the calibration result of the calibration component, perform a second performance test on the product to be tested according to the calibration result, and output the second performance test result.

[0009] In the above technical solution, during the test of the product to be tested, the motion control component controls the movement of the test fixture, the visual camera and the projection medium, thereby achieving full automation of the test process of the product to be tested. The calibration component calibrates the product to be tested, the visual camera and the projection medium, thereby ensuring the accuracy of the performance test. By performing the first performance test and the second performance test on the product to be tested, the flexibility and compatibility of the performance test device are improved.

[0010] As an implementation manner, the motion control component at least includes: a product control device, a fixture control device and a camera moving device.

[0011] The product control device is used to place the product to be tested on the test fixture and trigger a closing signal to the test fixture to fix the product to be tested; and trigger an opening signal to the test fixture after the test is completed to release the fixation of the product to be tested and remove the product to be tested from the test fixture.

[0012] The fixture control device is used to control the test fixture to move to the test position, and control the test fixture to return to the standby position after the product to be tested is taken out.

[0013] The camera moving device is used to control the visual camera to move to a test position.

[0014] The product control device, the fixture control device and the camera moving device realize the automatic placement and fixation of the product to be tested, which improves the automation level of the performance test process, reduces the occurrence of errors caused by human operation, and improves the stability and accuracy of the performance test. The product control device accurately controls the placement and fixation of the product to be tested, ensuring the accuracy of the test process. The fixture control device controls the position of the test fixture to ensure the consistency of the test environment and the actual vehicle environment. The camera moving device moves the position of the visual camera, so that the test process meets the requirements of all test points of the product to be tested for left-hand and right-hand steering.

[0015] Furthermore, the test fixture is provided with at least a fixing device and a connecting device;

[0016] The fixing device is used to fix or release the product to be tested according to the closing signal or opening signal triggered by the product control device. The connecting device is used to connect the product to be tested.

[0017] The fixing device responds to the closing signal or opening signal triggered by the product control device to automatically perform the fixing operation or releasing operation of the product to be tested, thereby reducing manual intervention, improving the degree of automation of the test process, and making the test process more efficient. The fixing of the product to be tested by the fixing device prevents the product to be tested from moving or shaking during the test, thereby improving the stability and reliability of the test results. The design of the fixing device and the connecting device enables the test fixture to adapt to different types of products to be tested. By adjusting the fixing device and the connecting device, the test device can be compatible with products of various specifications and sizes, thereby enhancing the flexibility and adaptability of the system.

[0018] Furthermore, the motion control component also includes a shielding control device, which controls the opening and closing of the shielding device to build a corresponding lighting environment for the test of the product to be tested.

[0019] By controlling the opening and closing of the shielding device, the consistency of the lighting conditions during the test of the product to be tested is ensured, the interference of the external lighting environment is avoided, and the reliability and accuracy of the test results are ensured, the need for manual adjustment of the lighting is reduced, and the efficiency of the test process is improved.

[0020] Furthermore, the performance testing device also includes a communication component and a printing device.

[0021] The communication component is used to establish communication between the product to be tested and the host computer; after the communication is successfully established, the internal barcode of the product to be tested is read by the host computer and bound. The printing device is used to print the test result label of the product to be tested after the test is completed and the product to be tested is taken out from the test fixture.

[0022] The communication component is used to establish communication between the product to be tested and the host computer. The host computer can directly read the internal barcode of the product to be tested and bind it, which not only improves the data processing efficiency, but also accurately identifies each product to be tested, ensures the correct correspondence between the test data and the product, and ensures the accuracy of the test process. The test result label is printed by the printing device, which provides traversal for subsequent product processing.

[0023] Based on the same inventive concept, the present application also proposes a method for a performance testing device, the method comprising:

[0024] The test fixture and the visual camera are moved to the test position, so as to fix the product to be tested by the test fixture, and control the projection medium to have a preset tilt angle.

[0025] The product to be tested, the visual camera and the projection medium are calibrated to obtain calibration results.

[0026] And, a first performance of the product to be tested is tested to output a first performance test result, and a second performance test is performed on the product to be tested according to the calibration result, and a second performance test result is output.

[0027] In the method of the above-mentioned performance testing device, the test fixture and the visual camera are moved to a predetermined test position, which reduces human operation errors and ensures the consistency of positioning of the product to be tested in each test, thereby improving the test accuracy. By calibrating the product to be tested, the visual camera and the projection medium, accurate calibration results can be obtained. This makes the calibration process faster and more efficient, ensuring that the viewing angle, focal length and other parameters of the visual camera and the projection medium reach the optimal working state during the test, thereby improving the accuracy and stability of the test.

[0028] Furthermore, fixing the product to be tested by the test fixture includes:

[0029] The product to be tested is fixed by closing the fixing device on the test fixture, and the product to be tested is connected by a connecting device.

[0030] By fixing the product to be tested on the test fixture through the fixing device, it can be ensured that the product to be tested will not be displaced or changed during the entire test process. The test error caused by the movement or loosening of the product to be tested is avoided, and the stability and accuracy of the test results are ensured. The fixing device and the connecting device can adapt to products to be tested of different shapes, sizes and types, which makes the entire test device flexible and can handle the testing requirements of various products, improving the versatility and scalability of the system.

[0031] Furthermore, before calibrating the product to be tested, the visual camera and the projection medium, the method further includes:

[0032] Control the product to be tested to enter a preset working state; the preset working state at least includes a preset gear state and a preset backlight brightness state; read the internal barcode of the product to be tested and bind it; control the closing or opening of the shielding device when starting the test to build a corresponding lighting environment for the test of the product to be tested.

[0033] By controlling the product to be tested to enter a preset working state, it is ensured that the product to be tested is in the same working state each time the test is performed. The repeatability and accuracy of the test results are ensured. By reading the barcode inside the product to be tested and binding it, the accurate association between the product and the test data can be achieved. When conducting the test, by controlling the opening or closing of the shielding device, a stable and controllable lighting environment can be created for the product to be tested. The consistency of the lighting environment during the test process is ensured. Through the precise control of the lighting environment, the working state of the product to be tested and the binding of the barcode, external factors or human errors that may affect the test accuracy can be effectively reduced. The efficiency, stability and reliability of the test are improved.

[0034] Furthermore, the step of calibrating the product to be tested, the visual camera and the projection medium and obtaining the calibration result further includes:

[0035] Determine whether the visual camera is perpendicular to the calibration component, whether the product to be tested enters a preset working state, and whether the projection medium is at a preset tilt angle; if so, calibrate the product to be tested, the visual camera, and the projection medium to obtain a calibration result; otherwise, adjust the visual camera, the working state of the product to be tested, and the tilt angle of the projection medium.

[0036] By judging whether the visual camera is perpendicular to the calibration component, the acquisition angle of the visual camera is ensured to be consistent with the angle of the calibration component. If the visual camera is not perpendicular, it may cause image distortion or measurement error, thereby affecting the accuracy of the calibration result. By judging whether the product to be tested is in a preset state, the consistency and controllability of the product to be tested are ensured, thereby improving the accuracy of the calibration result. The calibration operation will only be performed when the states of the visual camera, the product to be tested and the projection medium meet the requirements. Inaccurate calibration caused by the equipment not being in the correct position or state is avoided, ensuring the reliability and consistency of the calibration result.

[0037] Further, after obtaining the first performance test result and the second performance test result, the method further includes:

[0038] Disconnect the communication connection between the product to be tested and the host computer; and print the test result label of the product to be tested.

[0039] The fixing device on the test fixture is controlled to open to release the fixing of the product to be tested, the connection with the product to be tested is disconnected through the connecting device, and the product to be tested is taken out; the test fixture is controlled to move to a standby position.

[0040] After the test is completed, by disconnecting the communication connection with the product to be tested, unnecessary data transmission or control signal interference can be avoided in the later stage of the test or at the end of the test, ensuring the stability of the system and the integrity of the test results. By disconnecting the connection device from the product to be tested, it is ensured that the product to be tested can be smoothly removed from the test fixture. The workload of the operator is reduced, physical operation errors are reduced, and the efficiency and accuracy of the test are improved.

[0041] Compared with the prior art, this application has at least the following beneficial effects:

[0042] The performance testing device proposed in this application provides an effective solution for the automated performance testing of the product to be tested in the actual application process. During the test process, the motion control component controls the movement of the test fixture, the visual camera, and the projection medium, thereby achieving full automation of the test process of the product to be tested. The calibration component calibrates the product to be tested, the visual camera, and the projection medium, thereby ensuring the accuracy of the performance test. By performing the first and second performance tests on the product to be tested, the flexibility and compatibility of the performance testing device are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of a performance testing device shown in an embodiment of the present application.

[0044] Figure 2 It is a flow chart of the performance testing method shown in the embodiment of the present application. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or server that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0047] Embodiment 1:

[0048] Please refer to Figure 1 , the performance testing device at least comprises:

[0049] The motion control component is used to move the test fixture and the visual camera to the test position, so as to fix the product to be tested through the test fixture, and control the projection medium to be at a preset tilt angle. Among them, the projection medium can mainly be a car windshield, and the product to be tested can be a HUD product, for example, C-WHUD (Cluster-Wide Head-Up Display), W-HUD (Windshield Head-Up Display), AR-HUD (Augmented Reality Head-Up Display). The windshield can be controlled to rotate to the preset tilt angle by controlling the rotation of the two windshield motors, thereby avoiding the problem of inconsistent heights at both ends of the windshield. After the windshield rotates to the preset tilt angle, the windshield is fixed. The preset tilt angle can be adjusted according to actual needs. For example, the preset tilt angle can be set to 60 degrees or 65 degrees.

[0050] The calibration component is used to calibrate the product to be tested, the visual camera and the projection medium. The calibration of the product to be tested mainly calibrates the working state of the product to be tested to ensure that the working state of the product to be tested is the preset working state, such as the working gear and backlight brightness of the product to be tested. The calibration of the visual camera mainly calibrates the position of the visual camera to ensure that the position of the visual camera is perpendicular to the calibration component. The calibration of the projection medium mainly calibrates the inclination angle of the projection medium to ensure the consistency of the inclination angle of the projection medium.

[0051] And, the host computer is used to test the first performance of the product to be tested to output the first performance test result, and obtain the calibration result of the calibration component, perform a second performance test on the product to be tested according to the calibration result, and output the second performance test result. The first performance test can mainly be an electrical performance test, and the second performance test can mainly be an optical performance test. During the test process, software function testing can also be selected according to actual conditions.

[0052] The electrical performance test can mainly include sleep wake-up, input and output signal detection, LCD (Liquid Crystal Display) output image detection, LVDS (Low-Voltage Differential Signaling) image detection, DTC (Diagnostic Trouble Code) code detection, key point voltage detection, maximum power consumption detection, CAN (Controller Area Network) function detection. The optical performance test can mainly include motor calibration, distortion calibration, field of view angle detection, clarity detection, virtual image distance detection, eye box size detection, bottom and left viewing angle detection, backlight uniformity detection, angular resolution detection, virtual image tilt detection, binocular parallax detection, ghosting detection, color temperature detection, etc. The software function test can mainly include verifying whether the HUD software system can realize the established functions, such as information display, automatic brightness adjustment, virtual image height adjustment, etc., to ensure the stability and reliability of the software system.

[0053] The host computer can mainly be a computer, an embedded development platform, a test instrument, and a hardware simulation device, for example, a Linux or Windows embedded system, an oscilloscope, a signal generator, etc.

[0054] In some embodiments, the motion control assembly includes at least: a product control device, a fixture control device, and a camera moving device.

[0055] The product control device is used to place the product to be tested on the test fixture and trigger a closing signal to the test fixture to fix the product to be tested; and trigger an opening signal to the test fixture after the test is completed to release the fixation of the product to be tested and remove the product to be tested from the test fixture.

[0056] The fixture control device is used to control the test fixture to move to the test position, and control the test fixture to return to the standby position after the product to be tested is taken out.

[0057] The camera moving device is used to control the visual camera to move to a test position.

[0058] Among them, the product control device can mainly be a four-axis robot, through which the four-axis robot can realize actions such as grabbing the product to be tested, placing it on the fixture, and removing the test product from the test fixture. The gripper of the four-axis robot can firmly and stably grab the product without scratching or damaging the product. The fixture control device can mainly be a three-axis module, through which the position of the product to be tested can be accurately controlled to ensure the consistency between the test environment and the actual environment. The camera moving device can mainly be a six-axis robot. By reasonably installing the six-axis robot and controlling the movement of the visual camera by the six-axis robot, it can be ensured that the robot's travel meets the requirements of all test points of left-hand rudder products and right-hand rudder products.

[0059] Optionally, the test fixture is provided with at least a fixing device and a connecting device.

[0060] The fixing device is used to fix or release the product to be tested according to the closing signal or opening signal triggered by the product control device. The connecting device is used to connect the product to be tested.

[0061] In a specific test process, after the product to be tested is placed on the test fixture through the product control device, the product control device triggers a closing signal to the test fixture, and the test fixture responds to the closing signal and controls the fixing device to close, thereby realizing automatic fixing of the product to be tested, and automatically docking of the product to be tested is realized by controlling the connection device to work. After the test is completed, the product control device triggers an opening signal, and the test fixture responds to the opening signal and controls the fixing device to open to release the product to be tested, and disconnects from the product to be tested by controlling the connection device.

[0062] Optionally, the motion control component further comprises a shielding control device, through which the shielding device is controlled to be opened and closed, so as to construct a corresponding lighting environment for testing the product to be tested.

[0063] The shielding device can be a rolling door device. When the performance test is performed, the rolling door device is controlled to be closed so that the performance test process meets the requirements of the darkroom environment. The rolling door device uses a material that can absorb scattered and reflected light in the space. When the rolling door device is controlled to be closed during the test, the interference of stray light can be reduced and the influence of external light sources can be reduced.

[0064] Optionally, the performance testing device further includes a communication component and a printing device;

[0065] The communication component is used to establish communication between the product to be tested and the host computer; after the communication is successfully established, the internal barcode of the product to be tested is read by the host computer and bound; the printing device is used to print the test result label of the product to be tested after the test is completed and the product to be tested is taken out from the test fixture.

[0066] During the specific implementation process, the communication component can be connected to the host computer by means of a network protocol and an interface to ensure stable and error-free data transmission. After successfully establishing communication, the host computer can bind the product to be tested by reading the internal barcode of the product to be tested. Ensure that the test results can be associated with the corresponding product for each test. It is beneficial for the host computer to accurately track the performance test history and data records of each product after the test is completed. The test result label printed by the printing device may include information such as the unique identification code of the product to be tested, the test performance results, and the test date. Those skilled in the art can select other content that needs to be printed according to actual conditions, and are not limited to this.

[0067] Embodiment 2:

[0068] Please refer to Figure 2 The present application also proposes a testing method using the performance testing device described in Example 1, which mainly includes:

[0069] The test fixture and the visual camera are moved to the test position to fix the product to be tested by the test fixture, and the projection medium is controlled to be at a preset tilt angle. The preset tilt angle can be 60 degrees or 70 degrees. The preset tilt angle can be adjusted by technicians in this field according to actual conditions, and is not limited thereto.

[0070] The product to be tested, the visual camera and the projection medium are calibrated to obtain calibration results. By calibrating the product to be tested, the visual camera and the projection medium, the stability and reliability of the test results can be ensured.

[0071] And, a first performance of the product to be tested is tested to output a first performance test result, and a second performance test is performed on the product to be tested according to the calibration result, and a second performance test result is output.

[0072] The first performance test and the second performance test may mainly include an electrical performance test and an optical performance test. Those skilled in the art may add other performance tests, such as a software performance test, according to actual conditions.

[0073] Optionally, fixing the product to be tested by using the test fixture includes:

[0074] The product to be tested is fixed by closing the fixing device on the test fixture, and the product to be tested is connected by a connecting device.

[0075] Fixing the product to be tested by the fixing device ensures that the product to be tested will not shake during the test process, which may cause errors in the test results. For example, when testing the HUD system of an automobile, the HUD device is accurately fixed on the test fixture to avoid shaking or moving the HUD device during the test, which may cause errors in the test results.

[0076] Optionally, before calibrating the product to be tested, the visual camera and the projection medium, the method further includes:

[0077] Control the product to be tested to enter a preset working state; the preset working state at least includes a preset gear state and a preset backlight brightness state; read the internal barcode of the product to be tested and bind it; control the closing or opening of the shielding device when starting the test to build a corresponding lighting environment for the test of the product to be tested.

[0078] In the actual testing process, the product to be tested may include multiple working gears, so the product to be tested needs to be set to a fixed gear state before calibration. For example, when testing a vehicle-mounted HUD product, the vehicle-mounted HUD product can be set to a first gear working state.

[0079] Optionally, the step of calibrating the product to be tested, the visual camera, and the projection medium and obtaining the calibration result further includes:

[0080] Determine whether the visual camera is perpendicular to the calibration component, whether the product to be tested enters a preset working state, and whether the projection medium is at a preset tilt angle; if so, calibrate the product to be tested, the visual camera, and the projection medium to obtain a calibration result; otherwise, adjust the visual camera, the working state of the product to be tested, and the tilt angle of the projection medium.

[0081] For example, during the calibration process of the product to be tested, the visual camera and the projection medium, if the product to be tested is not in a preset working state, the working state of the product to be tested needs to be adjusted until the product to be tested is in the preset working state.

[0082] Optionally, after obtaining the first performance test result and the second performance test result, the method further includes:

[0083] The communication connection between the product to be tested and the host computer is disconnected, and a test result label of the product to be tested is printed.

[0084] The fixing device on the test fixture is controlled to open to release the fixing of the product to be tested, the connection with the product to be tested is disconnected through the connecting device, the product to be tested is taken out, and the test fixture is controlled to move to the standby position.

[0085] In summary, the performance testing device proposed in this application realizes full automation of the testing process of the product to be tested by controlling the movement of the test fixture, visual camera and projection medium through the motion control component during the testing process, and calibrates the product to be tested, the visual camera and the projection medium through the calibration component to ensure the accuracy of the performance test. By performing the first performance test and the second performance test on the product to be tested, the flexibility and compatibility of the performance testing device are improved.

[0086] In several embodiments provided in the present application, it is understood that each box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, a program segment or a part of a code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved.

[0087] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for enabling an electronic device to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0088] The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only a specific embodiment of the present application and is not intended to limit the scope of protection of the present application. It is particularly pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A performance testing device, at least used for HUD product performance testing, characterized in that: At least: A motion control component, used to move the test fixture and the visual camera to a test position, to fix the product to be tested by the test fixture, and to control the projection medium to have a preset tilt angle; A calibration component, used for calibrating the product to be tested, the visual camera and the projection medium; And, the host computer is used to test the first performance of the product to be tested to output the first performance test result, and obtain the calibration result of the calibration component, perform a second performance test on the product to be tested according to the calibration result, and output the second performance test result.

2. The performance testing device according to claim 1, characterized in that: The motion control assembly at least includes: a product control device, a fixture control device and a camera moving device; The product control device is used to place the product to be tested on the test fixture and trigger a closing signal to the test fixture to fix the product to be tested; and trigger an opening signal to the test fixture after the test is completed to release the fixation of the product to be tested and remove the product to be tested from the test fixture; The fixture control device is used to control the test fixture to move to the test position, and control the test fixture to return to the standby position after the product to be tested is taken out; The camera moving device is used to control the visual camera to move to a test position.

3. The performance testing device according to claim 2, characterized in that: The test fixture is provided with at least a fixing device and a connecting device; The fixing device is used to fix or release the product to be tested according to the closing signal or opening signal triggered by the product control device; The connecting device is used to connect the product to be tested.

4. The performance testing device according to claim 1, characterized in that: The motion control assembly further comprises a shielding control device, through which the shielding device is controlled to be opened and closed, so as to construct a corresponding lighting environment for testing the product to be tested.

5. The performance testing device according to claim 1, characterized in that: The performance testing device also includes a communication component and a printing device; The communication component is used to establish communication between the product to be tested and the host computer; after the communication is successfully established, the internal barcode of the product to be tested is read by the host computer and bound; The printing device is used to print a test result label for the product to be tested after the test is completed and the product to be tested is taken out from the test fixture.

6. A method based on the performance testing device according to any one of claims 1 to 5, characterized in that: include: Moving the test fixture and the visual camera to a test position, fixing the product to be tested by the test fixture, and controlling the projection medium to have a preset tilt angle; Calibrate the product to be tested, the visual camera and the projection medium to obtain calibration results; And, a first performance of the product to be tested is tested to output a first performance test result, and a second performance test is performed on the product to be tested according to the calibration result, and a second performance test result is output.

7. The performance testing method according to claim 6, characterized in that: Fixing the product to be tested by the test fixture includes: The product to be tested is fixed by closing the fixing device on the test fixture, and the product to be tested is connected by a connecting device.

8. The performance testing method according to claim 6, characterized in that: Before calibrating the product to be tested, the visual camera and the projection medium, the method further includes: Controlling the product to be tested to enter a preset working state; the preset working state at least includes a preset gear state and a preset backlight brightness state; Read the internal barcode of the product to be tested and bind it; When the test starts, the shielding device is controlled to be closed or opened, so as to construct a corresponding lighting environment for the test of the product to be tested.

9. The performance testing method according to claim 6, characterized in that: The step of calibrating the product to be tested, the visual camera and the projection medium and obtaining the calibration result further includes: Determine whether the visual camera is perpendicular to the calibration component, whether the product to be tested enters a preset working state, and whether the projection medium is at a preset tilt angle; If yes, calibrate the product to be tested, the visual camera and the projection medium to obtain a calibration result; Otherwise, the visual camera, the working state of the product to be tested and the tilt angle of the projection medium are adjusted.

10. The performance testing method according to claim 6, characterized in that: After obtaining the first performance test result and the second performance test result, the method further includes: Disconnect the communication connection between the product to be tested and the host computer; Printing a test result label for the product to be tested; Controlling the fixing device on the test fixture to open so as to loosen the fixing of the product to be tested, disconnecting the product to be tested through the connecting device, and taking out the product to be tested; Control the test fixture to move to a standby position.

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