Ota automated test equipment

Abstract

The utility model provides a kind of OTA automation testing device, it is related to communication test technical field, the device includes: mechanical arm, pedestal, motion slide rail, test fixture, equipment under test turntable, microwave darkroom and measuring antenna;Wherein, mechanical arm is installed on pedestal, for grabbing and placing equipment under test wireless device;Pedestal is used to carry mechanical arm, and moves along motion slide rail;Motion slide rail is laid on the ground of test scene, carries pedestal;Test fixture is set on equipment under test turntable, for clamping equipment under test wireless device, equipment under test wireless device is fixed on equipment under test turntable in the process of testing;Equipment under test turntable is set inside microwave darkroom, carries and rotates equipment under test wireless device;Measuring antenna is set inside microwave darkroom, for measuring the OTA performance of equipment under test wireless device.

Description

Technical Field

[0001] This utility model relates to the field of communication testing technology, and more particularly to an OTA automated testing device. Background Technology

[0002] This section is intended to provide background or context for embodiments of the present invention. The description herein does not imply acceptance that it is prior art simply because it is included in this section.

[0003] OTA testing is characterized by long testing times for single channels and frequency bands. According to current standardized testing methods, single-channel TIS testing for cellular wireless communication typically takes about 2 hours, while single-channel TIS testing for network-assisted satellite navigation generally takes no less than 4 hours. Since such testing requires a lot of time and manpower, unattended automated testing of wireless communication devices under test has become an inevitable requirement for industry development.

[0004] Currently, there is no mature automated testing solution in the industry, and traditional testing methods still rely on manual operation, resulting in low testing efficiency, high costs, and susceptibility to human factors. In response to this situation, developing an efficient and accurate automated OTA testing system to improve testing efficiency and reduce reliance on manual labor has become an urgent need in the field of wireless communication equipment testing. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model proposes an automated OTA testing device, which includes: a robotic arm, a base, a motion slide rail, a test fixture, a turntable for the device under test, a microwave anechoic chamber, and a measuring antenna; wherein,

[0006] The robotic arm is mounted on the base and is used to grasp and place the wireless device to be tested;

[0007] The base is used to support the robotic arm and move along the motion slide rail;

[0008] The motion slide rail is laid on the ground of the test scene and supports the base;

[0009] The test fixture is set on the device under test turntable and is used to hold the wireless device under test and fix the wireless device under test on the device under test turntable during the test.

[0010] The device under test turntable is located inside the microwave anechoic chamber, and carries and rotates the wireless device under test.

[0011] The measuring antenna is installed inside the microwave anechoic chamber and is used to measure the OTA performance of the wireless device under test.

[0012] In one embodiment of this utility model, the robotic arm is equipped with a force-controlled servo gripper for grasping and placing the wireless device under test.

[0013] In one embodiment of this utility model, a 3D vision camera is installed on the robotic arm to identify the wireless device under test and the placement coordinates on the turntable of the device under test.

[0014] In one embodiment of this utility model, the base is equipped with a first motor and a second motor, and a guide wheel is provided at the bottom; the first motor is used to control the movement of the robotic arm, and the second motor is used to control the guide wheel to rotate on the motion slide rail, thereby moving the base to the inside or outside of the microwave anechoic chamber.

[0015] In one embodiment of this utility model, the motion slide rail is laid along the interior of the microwave anechoic chamber to the exterior of the microwave anechoic chamber.

[0016] In one embodiment of this utility model, the test fixture 140 clamps the wireless device under test, fixes the screen and back panel area of ​​the wireless device under test, and exposes the top, bottom and frame of the wireless device under test to free space.

[0017] In one embodiment of this utility model, the device further includes: a control console;

[0018] The control console connects the robotic arm, base, device under test turntable, and measuring antenna, and is used to control the working status of the robotic arm, base, device under test turntable, and measuring antenna.

[0019] In one embodiment of this utility model, the microwave anechoic chamber is provided with microwave absorbing material.

[0020] The OTA automated testing device proposed in this utility model can realize the full automation of the process of automatic grabbing, placement and performance testing of the device under test, significantly improving the accuracy and efficiency of OTA performance testing, and effectively improving the reliability of testing. Attached Figure Description

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

[0022] Figure 1 This is a schematic diagram of the architecture of an OTA automated testing device according to an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the console architecture of an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 110, robotic arm;

[0026] 120, base;

[0027] 130, motion slide rail;

[0028] 140, Test fixture;

[0029] 150, the turntable of the device under test;

[0030] 160, microwave anechoic chamber;

[0031] 170, measuring antenna;

[0032] 180, microwave absorbing material;

[0033] 190, Force-controlled servo gripper;

[0034] 200, Console. Detailed Implementation

[0035] The principles and spirit of this invention will now be described with reference to several exemplary embodiments. It should be understood that these embodiments are provided merely to enable those skilled in the art to better understand and implement this invention, and are not intended to limit the scope of this invention in any way. Rather, these embodiments are provided to make this disclosure more thorough and complete, and to fully convey the scope of this disclosure to those skilled in the art.

[0036] According to an embodiment of this utility model, an OTA automated testing device is proposed, relating to the field of communication testing technology.

[0037] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0038] Figure 1 This is a schematic diagram of the architecture of an OTA automated testing device according to an embodiment of this utility model. Figure 1 As shown, the device includes:

[0039] The system includes a robotic arm 110, a base 120, a motion slide rail 130, a test fixture 140, a turntable for the device under test 150, a microwave anechoic chamber 160, and a measuring antenna 170; among these components...

[0040] The robotic arm 110 is mounted on the base 120 and is used to grasp and place the wireless device under test.

[0041] The base 120 is used to support the robotic arm 110 and move along the motion slide rail 130;

[0042] The motion slide rail 130 is laid on the ground of the test scene and supports the base 120;

[0043] The test fixture 140 is disposed on the device under test turntable 150 and is used to hold the wireless device under test and fix the wireless device under test on the device under test turntable 150 during the test.

[0044] The device under test turntable 150 is disposed inside the microwave anechoic chamber 160, and carries and rotates the wireless device under test.

[0045] The measuring antenna 170 is disposed inside the microwave anechoic chamber 160 and is used to measure the OTA performance of the wireless device under test.

[0046] In a real-world testing scenario, during initial test setup, the base 120, carrying the robotic arm 110, is positioned outside the microwave anechoic chamber 160. After successfully grasping the wireless device under test (DUT), the robotic arm 110 and the DUT move collaboratively along the motion rail 130 to a designated position inside the microwave anechoic chamber 160. Once in position, the robotic arm 110 places the DUT on the designated position of the DUT turntable 150 and clamps it using the test fixture 140. The base 120 then moves the robotic arm 110 back outside the microwave anechoic chamber 160, initiating over-the-air (OTA) performance testing via the measurement antenna 170. After the test is completed, the base 120 moves back into the designated position inside the microwave anechoic chamber 160, and the robotic arm 110 re-grabs the DUT and removes it from the microwave anechoic chamber 160. By repeating these steps, the entire process of automatic grasping, visual recognition, placement, and performance testing of the DUT can be automated.

[0047] The OTA automated testing device proposed in this utility model can realize the full automation of the process of automatic grabbing, placement and performance testing of the device under test, significantly improving the accuracy and efficiency of OTA performance testing, and effectively improving the reliability of testing.

[0048] To provide a clearer explanation of the above-mentioned OTA automated testing device, a detailed description is provided below with reference to a specific embodiment.

[0049] The robotic arm 110 is equipped with a force-controlled servo gripper 190 for grasping and placing the wireless device under test.

[0050] The robotic arm 110 is equipped with a 3D vision camera for identifying the wireless device under test and the placement coordinates on the turntable 150 of the device under test.

[0051] The robotic arm 110 is a high-precision robotic arm, and the 3D vision camera installed on it is a high-precision 3D vision camera, which can accurately identify the grasping posture of the wireless device under test and transmit the precise placement coordinates in real time, so as to accurately place the wireless device under test at the designated position on the device under test turntable 150.

[0052] The base 120 is equipped with a first motor and a second motor, and a guide wheel is provided at the bottom. The first motor is used to control the movement of the robotic arm, and the second motor is used to control the guide wheel to rotate on the motion slide rail 130, thereby driving the base 120 to move to the inside or outside of the microwave anechoic chamber 160.

[0053] The motion slide rail 130 is laid along the inside of the microwave anechoic chamber 160 to the outside of the microwave anechoic chamber 160.

[0054] The test fixture 140 clamps the wireless device under test, fixes the screen and back panel area of ​​the wireless device under test, and exposes the top, bottom and frame of the wireless device under test to free space, avoiding the phenomenon of the antenna of the wireless device under test being blocked, thus providing strong hardware support for OTA testing.

[0055] In practical applications, different customized test fixtures can be selected according to the different test items and scenarios.

[0056] Furthermore, for the force-controlled servo gripper 190, different force-controlled servo gripper types can be selected according to the type of test fixture to achieve adaptive adjustment of the gripping force (adjustable from 5 to 40N).

[0057] The microwave anechoic chamber 160 is equipped with microwave absorbing material 180.

[0058] In one embodiment of this utility model, reference is made to Figure 2 This is a schematic diagram of the console architecture according to an embodiment of the present utility model. Figure 2 As shown, the device also includes: a control console 200;

[0059] The control console 200 connects the robotic arm 110, base 120, device under test turntable 150, and measuring antenna 170, and is used to control the working status of the robotic arm 110, base 120, device under test turntable 150, and measuring antenna 170. The connection method can be wired or wireless communication.

[0060] The console 200 can be a computer or other type of control base. The control base 120 moves, the robotic arm 110 grips and places the wireless device under test (OTA), the OTA turntable 150 rotates, and the measuring antenna 170 plays test signals, achieving fully automated OTA performance testing and improving testing efficiency and reliability. This invention proposes a solution that improves the hardware portion of OTA testing. However, it does not improve the signal processing and data processing processes of OTA testing; existing OTA testing methods can be used for these processes. The control technology for the robotic arm and base has already been proposed in existing remote control technologies; this application does not improve the specific control technology.

[0061] This invention automates the entire speed measurement process. Through the coordinated operation of a robotic arm, base, motion rails, and control console, it enables automatic grasping, placement, positioning, and testing of the wireless device under test (DUT), eliminating reliance on manual operation. The robotic arm is equipped with a 3D vision camera, accurately identifying the DUT and its placement coordinates. The force-controlled servo gripper supports adjustable gripping force from 5-40N, ensuring stable device grasping while preventing damage. Absorbing materials inside the microwave anechoic chamber reduce external electromagnetic interference and reflected signal interference. When fixing the device, the test fixture only clamps the screen and backplate, exposing the top, bottom, and frame (antenna area) to avoid obstruction affecting test accuracy. The base moves along the motion rails (running through the microwave anechoic chamber) via motors and guide wheels, automating the robotic arm's entry and exit from the chamber. Combined with the rotation function of the DUT's turntable, it meets multi-directional testing requirements. The control console centrally controls the operating status of the robotic arm, base, turntable, and measuring antenna, ensuring efficient and coordinated operation of all components.

[0062] The overall solution improves testing efficiency through automated processes, overcoming the time-consuming nature of traditional manual testing and adapting to the long-running OTA testing scenarios. It reduces manpower input, avoids errors caused by manual operation, and improves the stability and reliability of test results. High-precision robotic arms, 3D vision positioning, and unobstructed fixture design ensure the accuracy of OTA performance measurements, filling the gap in automated testing technology in the field of wireless communication equipment testing. This promotes the development of wireless communication equipment testing towards high efficiency, precision, and unmanned operation, adapting to large-scale mass production testing scenarios.

[0063] The OTA automated testing device proposed in this utility model can realize the full automation of the process of automatic grabbing, placement and performance testing of the device under test, significantly improving the accuracy and efficiency of OTA performance testing, and effectively improving the reliability of testing.

[0064] Finally, it should be noted that the above-described embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An OTA automated testing device, characterized in that, The device includes: a robotic arm (110), a base (120), a motion slide rail (130), a test fixture (140), a turntable for the device under test (150), a microwave anechoic chamber (160), and a measuring antenna (170); among which, The robotic arm (110) is mounted on the base (120) and is used to grasp and place the wireless device under test; The base (120) is used to support the robotic arm (110) and move along the motion slide rail (130); The motion slide rail (130) is laid on the ground of the test scene and supports the base (120); The test fixture (140) is set on the device under test turntable (150) and is used to hold the wireless device under test. During the test, the wireless device under test is fixed on the device under test turntable (150). The device under test turntable (150) is located inside the microwave anechoic chamber (160) to support and rotate the wireless device under test; The measuring antenna (170) is disposed inside the microwave anechoic chamber (160) for measuring the OTA performance of the wireless device under test.

2. The OTA automated testing device according to claim 1, characterized in that, The robotic arm (110) is equipped with a force-controlled servo gripper for grasping and placing the wireless device under test.

3. The OTA automated testing device according to claim 1, characterized in that, The robotic arm (110) is equipped with a 3D vision camera for identifying the wireless device under test and the placement coordinates on the turntable (150) of the device under test.

4. The OTA automated testing device according to claim 1, characterized in that, The base (120) is equipped with a first motor and a second motor, and a guide wheel is provided at the bottom; the first motor is used to control the movement of the robotic arm, and the second motor is used to control the guide wheel to rotate on the motion slide rail (130), thereby driving the base (120) to move to the inside or outside of the microwave anechoic chamber (160).

5. The OTA automated testing device according to claim 1, characterized in that, The motion slide rail (130) is laid along the inside of the microwave anechoic chamber (160) to the outside of the microwave anechoic chamber (160).

6. The OTA automated testing device according to claim 1, characterized in that, The test fixture 140 clamps the wireless device under test, fixes the screen and back panel area of ​​the wireless device under test, and exposes the top, bottom and frame of the wireless device under test to free space.

7. The OTA automated testing device according to claim 1, characterized in that, The device also includes: a control console; The control console connects the robotic arm (110), base (120), device under test turntable (150), and measuring antenna (170) and is used to control the working status of the robotic arm (110), base (120), device under test turntable (150), and measuring antenna (170).

8. The OTA automated testing device according to claim 1, characterized in that, The microwave anechoic chamber (160) is equipped with microwave absorbing material.

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