Test system and test method of ultrasonic sensor

Abstract

The invention discloses a test system of an ultrasonic sensor and a test method of the test system of the ultrasonic sensor, and relates to the technical field of automobile test.The test system of the ultrasonic sensor comprises an anechoic chamber, an ultrasonic sensor mounting table, a moving device, a control device and an upper computer, the test area is provided with a plurality of test sites; the ultrasonic sensor mounting table is arranged in the anechoic chamber and is used for mounting an ultrasonic sensor; the moving device is provided with moving parts capable of reaching the test sites respectively; the control device is used for controlling the moving device to move; the upper computer is used for acquiring test position parameters of the ultrasonic sensor when the moving part moves to different test sites, and determining the performance of the ultrasonic sensor according to the position parameters and the test parameters of the different test sites, so that the test efficiency of the test system of the ultrasonic sensor is improved, and the test cost is reduced. Errors caused by environment and human factors are eliminated, and the reliability of test results is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile testing, and in particular to a testing system and a testing method of an ultrasonic sensor. Background Art

[0002] The principle of ultrasonic ranging is echo detection, that is, the ultrasonic transmitter emits ultrasonic waves in a certain direction and starts timing at the same time. The ultrasonic waves propagate in the air and are immediately reflected back when they encounter obstacles. The timing stops when the reflected wave is received. Due to physical properties, ultrasonic waves are easily affected by the environment, various external sound fields and electromagnetic fields. The traditional ultrasonic sensor FOV manual test method has many disadvantages, which takes a lot of time and manpower, and the test results of different testers vary greatly, and the reliability of the test results cannot be guaranteed. Summary of the invention

[0003] The main purpose of the present invention is to provide a test system and a test method for an ultrasonic sensor, aiming to improve the test efficiency, eliminate errors caused by environmental and human factors, and ensure the reliability of the test results.

[0004] To achieve the above object, the ultrasonic sensor testing system proposed in the present invention comprises:

[0005] An anechoic chamber, the anechoic chamber having a test area, the test area being provided with a plurality of test sites;

[0006] An ultrasonic sensor mounting platform is arranged in the anechoic chamber and is used for mounting the ultrasonic sensor;

[0007] A mobile device having a moving part capable of reaching each of the test sites respectively;

[0008] a control device, electrically connected to the mobile device, for controlling the activities of the mobile device; and

[0009] A host computer is electrically connected to the control device, and the host computer is used to communicate with the ultrasonic sensor to obtain test position parameters of the ultrasonic sensor when the moving part moves to different test positions, and determine the performance of the ultrasonic sensor based on the position parameters of the different test positions and the test parameters.

[0010] In one embodiment, the anechoic chamber is provided with a temperature and humidity regulating system, and the temperature and humidity regulating system is used to control the temperature and humidity in the anechoic chamber.

[0011] In one embodiment, the moving part includes a robotic arm.

[0012] In one embodiment, the plurality of test sites are arranged in an array in the test area, having a plurality of rows and a plurality of columns.

[0013] In one embodiment, a corner point of the test area is set as a coordinate origin;

[0014] The ultrasonic sensor mounting platform is arranged at the coordinate origin.

[0015] In one embodiment, the ultrasonic sensor mounting platform can be horizontally rotatable so that two opposite sides of the ultrasonic sensor mounting platform can face the test area.

[0016] The present invention also provides a testing method for a testing system of an ultrasonic sensor, comprising the following steps:

[0017] Installing an ultrasonic sensor on the ultrasonic sensor mounting platform;

[0018] Controlling the moving part to move to a plurality of different test positions in sequence according to a set trajectory, and correspondingly obtaining a plurality of test position parameters measured by the ultrasonic sensor;

[0019] And the performance of the ultrasonic sensor is determined according to the position parameters of each test site and the test position parameters.

[0020] In one embodiment, the step of determining the performance of the ultrasonic sensor based on the position parameters of each of the test sites and the test position parameters comprises:

[0021] Comparing the position parameters of each of the test sites with the difference between the test position parameters in real time;

[0022] Determine whether the difference exceeds a set threshold;

[0023] If it is less than the set threshold, the test result is determined to be reliable and the test continues;

[0024] If it is greater than the set threshold, the test result is determined to be unreliable and the test is restarted.

[0025] In one embodiment, the ultrasonic sensor test system is the ultrasonic sensor test system described above;

[0026] The step of controlling the moving part to move to a plurality of different test positions in sequence according to a set trajectory and correspondingly obtaining a plurality of test position parameters measured by the ultrasonic sensor comprises:

[0027] Passing through the test sites in sequence along each column in the first row;

[0028] The process continues in the next row and passes through the test sites in sequence along each column until all the test sites are passed.

[0029] In one embodiment, the ultrasonic sensor test system is the ultrasonic sensor test system described above;

[0030] After the step of determining the performance of the ultrasonic sensor according to the position parameters of each of the test sites and the test position parameters, the method further includes:

[0031] Controlling the ultrasonic sensor mounting platform to rotate horizontally 180°;

[0032] Once again, the moving part is controlled to move to a plurality of different test positions in sequence according to the set trajectory, and a plurality of test position parameters measured by the ultrasonic sensor are correspondingly obtained;

[0033] And the performance of the ultrasonic sensor is determined according to the position parameters of each test site and the test position parameters.

[0034] In the technical solution of the present invention, an ultrasonic sensor mounting platform is arranged in the anechoic chamber to absorb sound waves and eliminate sound wave reflections, thereby reducing the influence of echoes on test results. The ultrasonic sensor is mounted on the ultrasonic sensor mounting platform. The mobile device has a mobile part that can reach each of the test sites respectively. The control device controls the activity of the mobile device. The ultrasonic sensor performs ultrasonic ranging on the mobile parts that reach each of the test sites respectively. The host computer is electrically connected to the control device, and the host computer is used to communicate with the ultrasonic sensor to obtain the test position parameters of the ultrasonic sensor when the mobile part moves to different test sites, and determine the performance of the ultrasonic sensor according to the position parameters of the different test sites and the test parameters; the sound waves are absorbed and the sound wave reflections are eliminated by the anechoic chamber, thereby reducing the influence of echoes on test results; the ultrasonic sensor performs ultrasonic ranging on the mobile parts that reach each of the test sites respectively, and the host computer obtains the test position parameters of the ultrasonic sensor, and determines the performance of the ultrasonic sensor according to the position parameters of the different test sites and the test parameters, thereby improving the test efficiency, eliminating the errors caused by the environment, external sound field and human factors, and ensuring the reliability of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0036] Figure 1A schematic diagram of the principle of an embodiment of a testing system for an ultrasonic sensor provided by the present invention;

[0037] Figure 2 for Figure 1 Schematic diagram of the principle of the test area of ​​the test system of the ultrasonic sensor;

[0038] Figure 3 for Figure 1 The schematic diagram of the structure of the ultrasonic sensor mounting platform;

[0039] Figure 4 A schematic flow chart of an embodiment of a test method of a test system for an ultrasonic sensor provided by the present invention;

[0040] Figure 5 for Figure 4 A schematic flow chart of the steps of determining the performance of the ultrasonic sensor according to the position parameters of each of the test sites and the test position parameters;

[0041] Figure 6 for Figure 4 A flowchart of another embodiment of the step of determining the performance of the ultrasonic sensor according to the position parameters of each of the test sites and the test position parameters;

[0042] Figure 7 for Figure 4 A flowchart showing the steps of controlling the moving part to move to a plurality of different test positions in sequence according to a set trajectory and correspondingly obtaining parameters of a plurality of test positions measured by the ultrasonic sensor;

[0043] Figure 8 for Figure 4 A flowchart of the steps after determining the performance of the ultrasonic sensor according to the position parameters of each test site and the test position parameters.

[0044] Description of Figure Numbers:

[0045] 100. Test system of ultrasonic sensor; 1. Anechoic chamber; 2. Ultrasonic sensor mounting platform; 3. Moving device; 31. Moving part; 32. Standard rod; 4. Control device; 5. Host computer; 6. Attitude instrument.

[0046] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0047] 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.

[0048] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0049] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0050] The traditional manual FOV testing method of ultrasonic sensors has many disadvantages. It takes a lot of time and manpower, and the test results of different testers vary greatly, and the reliability of the test results cannot be guaranteed.

[0051] To this end, the present invention provides a testing system for an ultrasonic sensor.

[0052] See also Figure 1In one embodiment of the present invention, the test system of the ultrasonic sensor includes an anechoic chamber 1, an ultrasonic sensor mounting platform 2, a mobile device 3, a control device 4 and a host computer 5: the anechoic chamber 1 has a test area, and the test area is provided with a plurality of test sites; the ultrasonic sensor mounting platform 2 is arranged in the anechoic chamber 1 for the installation of the ultrasonic sensor; the mobile device 3 has a mobile part 31 capable of reaching each of the test sites respectively; the control device 4 is electrically connected to the mobile device 3 to control the movement of the mobile device 3; the host computer 5 is electrically connected to the control device 4, and the host computer 5 is used for communication connection with the ultrasonic sensor, so as to obtain the test position parameters of the ultrasonic sensor when the mobile part 31 moves to different test sites, and determine the performance of the ultrasonic sensor according to the position parameters of the different test sites and the test parameters.

[0053] In the technical solution of the present invention, an ultrasonic sensor mounting platform 2 is arranged in the anechoic chamber 1 to absorb sound waves and eliminate sound wave reflections, thereby reducing the influence of echoes on test results. The ultrasonic sensor is mounted on the ultrasonic sensor mounting platform 2. The mobile device 3 has a mobile part 31 that can reach each of the test sites respectively. The control device 4 controls the activity of the mobile device 3. The ultrasonic sensor performs ultrasonic ranging on the mobile part 31 that reaches each of the test sites respectively. The host computer 5 is electrically connected to the control device 4, and the host computer 5 is used to communicate with the ultrasonic sensor to obtain the ultrasonic when the mobile part 31 moves to different test sites. The test position parameters of the ultrasonic sensor are determined, and the performance of the ultrasonic sensor is determined according to the position parameters of the different test sites and the test parameters; the sound waves are absorbed and the sound wave reflections are eliminated by the anechoic chamber 1, so as to reduce the influence of the echo on the test results; the ultrasonic sensor performs ultrasonic ranging on the mobile part 31 that reaches each test site respectively, and the host computer 5 obtains the test position parameters of the ultrasonic sensor, and determines the performance of the ultrasonic sensor according to the position parameters of the different test sites and the test parameters, thereby improving the test efficiency, eliminating the errors caused by the environment, external sound field and human factors, and ensuring the reliability of the test results.

[0054] Specifically, in one embodiment of the present invention, the host computer 5 also includes a visual interface for real-time display of test results and abnormal displays, and generating test reports, thereby further improving convenience, and timely discovering abnormalities, facilitating timely adjustments, and improving test accuracy.

[0055] It is understandable that the ultrasonic sensor measures distance or detects obstacles by emitting ultrasonic pulses and receiving echoes, and changes in temperature and humidity can affect the propagation speed of ultrasonic waves in the air and the attenuation of sound waves, thereby affecting the detection accuracy and reliability of the sensor. In addition, the electronic testing equipment in the anechoic chamber 1 is very sensitive to changes in temperature and humidity. Excessive humidity may cause electronic components to become damp, while excessively low humidity may cause static electricity to accumulate and damage electronic equipment. For this reason, in one embodiment of the present invention, the anechoic chamber 1 is provided with a temperature and humidity control system, which is used to control the temperature and humidity in the anechoic chamber 1. By controlling the temperature and humidity in the anechoic chamber 1 to be the same as the actual working environment of the ultrasonic sensor, the influence of temperature and humidity on the test results is reduced.

[0056] In addition, in order to better eliminate the influence of echo on the test results, the inner wall of the anechoic chamber 1 is also provided with sound-absorbing material, so as to enhance the absorption of ultrasonic waves, so that the ultrasonic sensor only receives ultrasonic waves reflected from the moving part 31, thereby improving the accuracy of the test results; specifically, the sound-absorbing material can be a wood fiber sound-absorbing board or polyester fiber cotton, and the present invention does not impose any restrictions on this, as long as it can effectively absorb ultrasonic waves.

[0057] In one embodiment of the present invention, the moving part 31 includes a mechanical arm, and a standard rod 32 is fixed on the mechanical arm. The control device 4 controls the mechanical arm to drive the standard rod 32 to each of the test sites. It can be understood that in order to test the accuracy of the ultrasonic sensor, the range of each of the test sites is not large. Therefore, by setting the standard rod 32 to be precisely located in each of the test sites, a known and accurate distance is provided. In addition, the mechanical arm reaches each of the test sites according to the specified route, thereby improving the consistency of the test and improving the test effect. In another embodiment of the present invention, the moving part 31 includes a guide rail and a standard rod 32 slidably set on the guide rail. The guide rail is set through each of the test sites, thereby driving the standard rod 32 to reach each of the test sites, thereby improving the consistency of the test and improving the test effect.

[0058] See also Figure 2 In one embodiment of the present invention, the plurality of test sites are arranged in an array in the test area, with a plurality of rows and a plurality of columns. By such an arrangement, the test sites cover the entire test area, thereby more comprehensively evaluating the ultrasonic sensor.

[0059] In order to more conveniently obtain the position parameters of the different test sites, in one embodiment of the present invention, a corner point of the test area is set as the coordinate origin; the ultrasonic sensor mounting platform 2 is set at the coordinate origin; the horizontal plane of the test area establishes an XOY coordinate system with 10CM as a unit, forming N×M 10×10cm small squares, and each square is named (1-N, 1-M) to obtain a mapping relationship between each square and the coordinate origin, wherein O is the origin of the XOY coordinate system, the ultrasonic sensor mounting platform 2 is set at the coordinate origin, and 1-N is the coordinate origin. 1-M is the coordinate of the small square on the X-axis of the coordinate system, and 1-M is the coordinate of the small square on the Y-axis of the coordinate system; the test path starts from (N, M), moves to (N, M-1), until it moves to (N, 0), and ends the Nth column test; thereafter, it starts from (N-1, M), moves to (N-1, M-1), until it moves to (N-1, 0), and moves in the specified direction until the entire test area is covered. Through such an arrangement, the moving part 31 can quickly pass through all test sites, so that while comprehensively evaluating the ultrasonic sensor, the detection can be completed more quickly.

[0060] See also Figure 3 In one embodiment of the present invention, in order to simulate different working environments, the ultrasonic sensor is set at different positions and angles. For this purpose, the test system of the ultrasonic sensor also includes a posture meter 6, and the posture meter 6 is movably set on the ultrasonic sensor mounting platform 2 for the installation of the ultrasonic sensor; specifically, the movable path of the posture meter 6 on the ultrasonic sensor mounting platform 2 is adapted to the contour of the vehicle bumper, and the posture meter 6 has six degrees of freedom and can be tilted in all directions to adapt to the specific angle of the vehicle bumper, so as to better simulate the actual installation position of the ultrasonic sensor and obtain more accurate test results.

[0061] Further, it can be understood that after the test is completed, in one embodiment of the present invention, the ultrasonic sensor mounting platform 2 can be horizontally rotated so that the two opposite sides of the ultrasonic sensor mounting platform 2 can face the test area, and the two opposite sides of the ultrasonic sensor mounting platform 2 are respectively provided with movable paths for adapting to the contours of the front and rear bumpers of the vehicle. When one side of the ultrasonic sensor mounting platform 2 faces the test area and the ultrasonic sensor detection on one side of the bumper contour is completed, the ultrasonic sensor mounting platform 2 is horizontally rotated 180° so that the other side of the ultrasonic sensor mounting platform 2 faces the test area and completes the ultrasonic sensor detection on the other side of the bumper contour. Through such a setting, the ultrasonic sensor test of the entire vehicle can be completed in one test, thereby improving the convenience of the ultrasonic sensor test system.

[0062] In addition, it is understandable that different cars have different profiles, and the ultrasonic sensor is not limited to use in cars, but can also be used in medical equipment and industrial production. For this reason, the activity path and tilt direction of the attitude indicator 6 can be adjusted according to different uses, and the present invention does not limit this.

[0063] The present invention further provides a testing method for the ultrasonic sensor testing system as described in any one of the above, comprising the following steps:

[0064] Step S10. Installing the ultrasonic sensor on the ultrasonic sensor mounting platform 2;

[0065] Step S20. Control the moving part 31 to move to a plurality of different test positions in sequence according to the set trajectory, and correspondingly obtain a plurality of test position parameters measured by the ultrasonic sensor;

[0066] Step S30. Determine the performance of the ultrasonic sensor according to the position parameters of each of the test sites and the test position parameters.

[0067] In the technical solution of the present invention, by installing the ultrasonic sensor on the ultrasonic sensor mounting platform 2, controlling the moving part 31 to move to multiple different test locations in succession according to the set trajectory, and correspondingly obtaining multiple test position parameters measured by the ultrasonic sensor, the test system of the ultrasonic sensor automatically completes the detection of the ultrasonic sensor, and determines the performance of the ultrasonic sensor according to the position parameters of each test location and the test position parameters. Compared with traditional manual detection, the test efficiency and uniformity are improved, the errors caused by human factors are eliminated, and the reliability of the test results is ensured.

[0068] See also Figure 5 In one embodiment of the present invention, step S30 includes:

[0069] Step S31. Compare the difference between the position parameters of each test site and the test position parameters in real time;

[0070] Step S32: Determine whether the difference exceeds a set threshold;

[0071] Step S33. If it is less than the set threshold, the test result is determined to be reliable and the test is continued;

[0072] Step S34. If it is greater than the set threshold, the test result is determined to be unreliable and the test is restarted;

[0073] In order to better evaluate the performance of the ultrasonic sensor, when the test starts, the position parameters of each test site are compared with the difference between the test position parameters and the preset threshold value. If the difference is less than the set threshold value in real time, it is obvious that there is no problem with the test process and the test result is reliable. The test is continued until the test is completed. If during the test, the difference is greater than the threshold, it means that the test is abnormal and the test result is unreliable. The test system needs to be repaired. If there is no problem with the test, it means that the ultrasonic sensor is unqualified.

[0074] Specifically, in one embodiment of the present invention, the threshold is set to 5 mm to meet the accuracy requirements in actual use. It can be understood that due to different application scenarios and models of different ultrasonic sensors, the required accuracy is also different. The threshold can be adjusted according to demand. The present invention does not limit the specific value of the threshold.

[0075] Furthermore, to prevent misjudgment, please refer to Figure 6 In one embodiment of the present invention, step S34 further includes:

[0076] Step S341. Record the time when the difference is greater than the threshold;

[0077] Step S342 and determining whether the difference is greater than the threshold for a long time;

[0078] Step S343. If the difference is temporarily greater than the threshold, the abnormal value is discarded and the test is continued;

[0079] Step S344: If the difference is greater than the threshold for a long time, stop the test;

[0080] It can be understood that if the difference is only temporarily greater than the threshold, it is an accidental error or an error caused by echoes in the environment, and these abnormal values ​​can be discarded; and when the difference is greater than the threshold for a long time, it means that the ultrasonic sensor is unqualified or the test system fails; by recording the time when the difference is greater than the threshold, it is easier to determine the cause of the abnormality.

[0081] In addition, in one embodiment of the present invention, before starting the test, the movable part 31 can be aligned with the ultrasonic sensor, and the difference at this time can be adjusted to zero, that is, the mapping information of the position parameters of the test site and the position of the ultrasonic sensor is initialized, thereby eliminating the initial installation error and improving the test accuracy.

[0082] See also Figure 7 In one embodiment of the present invention, step S20 includes:

[0083] Step S21. Passing through the test sites in the first row and along each column in turn;

[0084] Step S22. Continue to pass through the test sites in the next row along each column in turn until all the test sites are passed;

[0085] Specifically, a corner point of the test area is set as the coordinate origin; the ultrasonic sensor mounting platform 2 is set at the coordinate origin; the horizontal plane of the test area establishes an XOY coordinate system with 10CM as a unit, forming N×M 10×10cm small squares, and each square is named (1-N, 1-M), and a mapping relationship between each square and the coordinate origin is obtained, wherein O is the origin of the XOY coordinate system, the ultrasonic sensor mounting platform 2 is set at the coordinate origin, 1-N is the coordinate of the small square on the X-axis of the coordinate system, 1-M is the coordinate of the small square on the Y-axis of the coordinate system; the test path starts from (N, M), moves to (N, M-1), until it moves to (N, 0), and ends the Nth column test; thereafter, it starts from (N-1, M), moves to (N-1, M-1), until it moves to (N-1, 0), and moves in the specified direction until the entire test area is covered. Through such an arrangement, the moving part 31 can quickly pass through all test sites, so that the detection can be completed more quickly while comprehensively evaluating the ultrasonic sensor.

[0086] See also Figure 8 In one embodiment of the present invention, the ultrasonic sensor mounting platform 2 is arranged at the coordinate origin and can be horizontally rotated so that both opposite sides of the ultrasonic sensor mounting platform 2 can face the test area. When one side of the ultrasonic sensor mounting platform 2 faces the test area, and after the step of determining the performance of the ultrasonic sensor according to the position parameters of each test site and the test position parameters, the method further includes:

[0087] Step S40 controls the ultrasonic sensor mounting platform 2 to rotate horizontally by 180°;

[0088] Step S50: controlling the moving part 31 to move to a plurality of different test positions in sequence according to the set trajectory again, and correspondingly obtaining a plurality of test position parameters measured by the ultrasonic sensor;

[0089] Step S60 determines the performance of the ultrasonic sensor according to the position parameters of each test site and the test position parameters.

[0090] It can be understood that when one side of the ultrasonic sensor mounting platform 2 faces the test area and completes the ultrasonic sensor detection on one side of the bumper contour, the ultrasonic sensor mounting platform 2 is horizontally rotated 180° so that the other side of the ultrasonic sensor mounting platform 2 faces the test area and completes the ultrasonic sensor detection on the other side of the bumper contour. Through such an arrangement, the ultrasonic sensor test of the entire vehicle can be completed in one test, thereby improving the convenience of the ultrasonic sensor test system.

[0091] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A testing system for an ultrasonic sensor, characterized in that: include: An anechoic chamber, the anechoic chamber having a test area, the test area being provided with a plurality of test sites; An ultrasonic sensor mounting platform is arranged in the anechoic chamber and is used for mounting the ultrasonic sensor; A mobile device having a moving part capable of reaching each of the test sites respectively; A control device, electrically connected to the mobile device, for controlling the activities of the mobile device; as well as, A host computer is electrically connected to the control device, and the host computer is used to communicate with the ultrasonic sensor to obtain test position parameters of the ultrasonic sensor when the moving part moves to different test positions, and determine the performance of the ultrasonic sensor based on the position parameters of the different test positions and the test parameters.

2. The ultrasonic sensor testing system according to claim 1, characterized in that: The anechoic chamber is provided with a temperature and humidity regulating system, and the temperature and humidity regulating system is used to control the temperature and humidity in the anechoic chamber.

3. The ultrasonic sensor testing system according to claim 1, characterized in that: The moving part includes a mechanical arm.

4. The ultrasonic sensor testing system according to claim 1, characterized in that: The plurality of test sites are arranged in an array in the test area, with a plurality of rows and a plurality of columns.

5. The ultrasonic sensor testing system according to claim 4, characterized in that: A corner point of the test area is set as a coordinate origin; The ultrasonic sensor mounting platform is arranged at the coordinate origin.

6. The ultrasonic sensor testing system according to claim 1 or 5, characterized in that: The ultrasonic sensor mounting platform can be horizontally rotatable so that two opposite sides of the ultrasonic sensor mounting platform can face the test area.

7. A method for testing an ultrasonic sensor test system according to any one of claims 1 to 6, characterized in that: The following steps are involved: Installing an ultrasonic sensor on the ultrasonic sensor mounting platform; Controlling the moving part to move to a plurality of different test positions in sequence according to a set trajectory, and correspondingly obtaining a plurality of test position parameters measured by the ultrasonic sensor; And the performance of the ultrasonic sensor is determined according to the position parameters of each test site and the test position parameters.

8. The testing method of the ultrasonic sensor testing system according to claim 7, characterized in that: The step of determining the performance of the ultrasonic sensor according to the position parameters of each of the test sites and the test position parameters comprises: Comparing the position parameters of each of the test sites with the difference between the test position parameters in real time; Determine whether the difference exceeds a set threshold; If it is less than the set threshold, the test result is determined to be reliable and the test continues; If it is greater than the set threshold, the test result is determined to be unreliable and the test is restarted.

9. The testing method of the ultrasonic sensor testing system according to claim 7, characterized in that: The ultrasonic sensor test system is the ultrasonic sensor test system according to claim 4 or 5; The step of controlling the moving part to move to a plurality of different test positions in sequence according to a set trajectory and correspondingly obtaining a plurality of test position parameters measured by the ultrasonic sensor comprises: Passing through the test sites in sequence along each column in the first row; The process continues in the next row and passes through the test sites in sequence along each column until all the test sites are passed.

10. The testing method of the ultrasonic sensor testing system according to claim 7, characterized in that: The ultrasonic sensor test system is the ultrasonic sensor test system according to claim 6; After the step of determining the performance of the ultrasonic sensor according to the position parameters of each of the test sites and the test position parameters, the method further includes: Controlling the ultrasonic sensor mounting platform to rotate horizontally 180°; Once again, the moving part is controlled to move to a plurality of different test positions in sequence according to the set trajectory, and a plurality of test position parameters measured by the ultrasonic sensor are correspondingly obtained; And the performance of the ultrasonic sensor is determined according to the position parameters of each test site and the test position parameters.

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