A millimeter wave radar testing device

Abstract

This utility model discloses a millimeter-wave radar testing device, including a frame. A first slide block is slidably arranged on the frame along its length, and a second slide block is slidably arranged on the first slide block along its vertical direction. A corner reflector is fixedly installed on the second slide block. A servo motor is fixedly installed at one end of the frame. The output shaft of the servo motor is driven by a rotating shaft through a coupling. A top plate is fixedly connected to the top of the rotating shaft, and several millimeter-wave radar bodies are detachably connected to the top plate. In this utility model, a servo mechanism is set to allow the millimeter-wave radar to rotate horizontally, and two sets of ball screw transmission mechanisms are set to allow the corner reflector to move horizontally towards the millimeter-wave radar and simultaneously move up and down. This automatically completes the performance testing of the millimeter-wave radar, solving the problem of low testing efficiency caused by repeated manual adjustment of the corner reflector position in current millimeter-wave radar testing techniques.

Description

Technical Field

[0001] This utility model relates to the field of millimeter-wave radar technology, and in particular to a millimeter-wave radar testing device. Background Technology

[0002] Millimeter waves refer to electromagnetic waves with wavelengths between 1 and 10 mm. They have advantages such as large RF bandwidth, high resolution, small antenna size, and strong adaptability to harsh environments. Therefore, millimeter wave radar has the characteristics of small size, light weight, strong penetration, all-weather operation, and high spatial resolution. With the rapid development of the millimeter wave radar market and the increasing variety of types, test engineers urgently need efficient test solutions to evaluate its performance.

[0003] Currently, radio frequency (RF) testing methods are mainly used, relying on traditional instruments: a spectrum analyzer is used to collect and analyze signals when testing transmitter performance; when testing receiver performance, a standard signal is sent through a signal source to measure parameters such as radar gain and sensitivity. However, in the current testing process, the position of the corner reflector still needs to be manually adjusted repeatedly, which is cumbersome, inefficient, and affects the overall testing progress and accuracy. Utility Model Content

[0004] The purpose of this utility model is to provide a millimeter-wave radar testing device in order to solve the technical problems mentioned in the background art.

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

[0006] A millimeter-wave radar testing device includes a frame, on which a first slide block is slidably arranged along its length, and on which a second slide block is slidably arranged along its vertical direction. A corner reflector is fixedly installed on the second slide block. A servo motor is fixedly installed at one end of the frame. The output shaft of the servo motor is driven to a rotating shaft through a coupling. A top plate is fixedly connected to the top of the rotating shaft. Several millimeter-wave radar bodies are detachably connected to the top plate. A control device for controlling the overall device is fixedly installed on the frame.

[0007] As a further description of the above technical solution:

[0008] The top plate is fixedly connected to corner plates around its perimeter, and clamping plates are elastically connected to the vertical ends of the corner plates. The millimeter-wave radar body is clamped between the two sets of clamping plates.

[0009] As a further description of the above technical solution:

[0010] A guide rod passing through the corner plate is fixedly connected to the clamp plate, and a compression spring is sleeved on the guide rod. The two ends of the compression spring are fixedly connected to the corner plate and the clamp plate, respectively.

[0011] As a further description of the above technical solution:

[0012] The frame is fixedly connected to the two sides of the first slide rail, and the bottom of the first slide block is fixedly connected to the two sides of the first slide block, which slides in cooperation with the first slide rail. The frame is rotatably mounted with a first lead screw, and the frame is fixedly mounted with a drive motor that is connected to the first lead screw. The bottom of the first slide block is fixedly connected with a first ball nut assembled on the first lead screw.

[0013] As a further description of the above technical solution:

[0014] The first slide block is fixedly connected to the second slide rail on both sides, and the second slide block is fixedly connected to the second slide rail on both sides for sliding cooperation. The first slide block is rotatably mounted on the second lead screw, and the first slide block is fixedly mounted on the second slide block for transmission connection with the second lead screw. The second slide block is fixedly mounted on the second lead screw for assembly of the second ball nut.

[0015] As a further description of the above technical solution:

[0016] The control device controls the entire device through an industrial control computer, and the test results fed back by the radar under test are stored in the storage component of the industrial control computer.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] 1. In this utility model, a servo mechanism is set to enable the millimeter-wave radar to rotate horizontally, and two sets of ball screw mechanisms are set to enable the corner reflector to move horizontally towards the millimeter-wave radar, while also being able to move up and down. This automatically completes the performance testing of the millimeter-wave radar, solving the current technical problem that the position of the corner reflector needs to be repeatedly adjusted manually, resulting in low testing efficiency.

[0019] 2. In this utility model, the clamping plate can reliably clamp and fix the radar under the action of spring force, preventing it from shifting or loosening during operation and improving the stability of equipment operation. Attached Figure Description

[0020] Figure 1 A three-dimensional structural schematic diagram of a millimeter-wave radar testing device according to an embodiment of the present invention is shown;

[0021] Figure 2 A schematic diagram of the top plate of a millimeter-wave radar testing device according to an embodiment of the present invention is shown.

[0022] Figure 3 It shows Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4A control block diagram of a control device provided according to an embodiment of the present invention is shown.

[0024] Legend:

[0025] 1. Frame; 2. First slide rail; 3. First slider; 4. Servo motor; 5. Rotating shaft; 6. Top plate; 7. Second slide rail; 8. Second slide block; 9. Corner reflector; 10. First lead screw; 11. Second lead screw; 12. First slide block; 13. Second slider; 14. Drive motor two; 15. Drive motor one; 16. Control device; 17. Corner plate; 18. Millimeter-wave radar body; 19. Clamping plate; 20. Guide rod; 21. Compression spring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-4This utility model provides a technical solution: a millimeter-wave radar testing device, including a frame 1, on which a control device 16 for controlling the overall device is fixedly installed. The control device 16 controls the overall device through an industrial control computer. The test results fed back by the radar under test are stored in the storage component of the industrial control computer. A first slide block 12 is slidably arranged on the frame 1 along its length direction. First slide rails 2 are fixedly connected to both sides of the frame 1. First sliders 3 that slide and cooperate with the first slide rails 2 are fixedly connected to both sides of the bottom of the first slide block 12. A first lead screw 10 is rotatably mounted on the frame 1. A drive motor 15 that is transmitted and connected to the first lead screw 10 is fixedly mounted on the frame 1. The bottom of the first slide block 12... A first ball nut is fixedly connected to the first lead screw 10. When the drive motor 15 is started, the first lead screw 10 rotates. According to the ball screw transmission principle, the first ball nut drives the first slide block 12 to move along the first slide rail 2, adjusting the horizontal position of the corner reflector 9 relative to the millimeter-wave radar body 18. A second slide block 8 is vertically slidably mounted on the first slide block 12. Second slide rails 7 are fixedly connected to both sides of the first slide block 12. Second sliders 13, which slide and engage with the second slide rails 7, are fixedly connected to both sides of the second slide block 8. A second lead screw 11 is rotatably mounted on the first slide block 12. A second drive motor 11, which is connected to the second lead screw 11, is fixedly mounted on the first slide block 12. 4. A second ball nut mounted on the second lead screw 11 is fixedly installed on the second slide block 8. A corner reflector 9 is fixedly installed on the second slide block 8. The drive motor 14 is started to drive the second lead screw 11 to rotate. According to the ball screw transmission principle, the second ball nut drives the second slide block 8 to move along the second slide rail 7, adjusting the vertical position of the corner reflector 9 relative to the millimeter-wave radar body 18. A servo motor 4 is fixedly installed at one end of the frame 1. The output shaft of the servo motor 4 is connected to a rotating shaft 5 through a coupling. A top plate 6 is fixedly connected to the top of the rotating shaft 5. Several millimeter-wave radar bodies 18 are detachably connected to the top plate 6. First, during the test, the servo motor 4 is adjusted... When the radar under test is brought to the standard location, the millimeter-wave radar body 18 is positioned so that it faces the corner reflector 9 directly, or the millimeter-wave radar body 18 is rotated relative to the corner reflector 9. The output data of the millimeter-wave radar body 18 is uploaded to the control device 16. Based on the readings of the millimeter-wave radar body 18, the moving distance of the two sets of slides, and the rotation angle reading of the servo motor 4, the ranging accuracy, vertical angle accuracy, and water surface angle accuracy of the millimeter-wave radar body 18 are determined. Secondly, since four millimeter-wave radar bodies 18 with different faces are installed on the top plate 6, the different millimeter-wave radar bodies 18 can be adjusted for radar performance testing by controlling the servo motor 4 through the control device 16.

[0028] Specifically, such as Figure 2 and Figure 3As shown, corner plates 17 are fixedly connected around the top plate 6. Clamping plates 19 are elastically connected to the vertical ends of the corner plates 17. Guide rods 20 passing through the corner plates 17 are fixedly connected to the clamping plates 19. Compression springs 21 are sleeved on the guide rods 20. The two ends of the compression springs 21 are fixedly connected to the corner plates 17 and the clamping plates 19 respectively. The millimeter-wave radar body 18 is clamped between the two sets of clamping plates 19. Under the action of the spring force, the clamping plates 19 can reliably clamp and fix the radar, preventing it from shifting or loosening during operation and improving the stability of equipment operation.

[0029] Working principle: During use, the servo motor 4 is controlled by the control device 16 to adjust the millimeter-wave radar body 18 to the standard direction. At this time, the millimeter-wave radar body 18 faces the corner reflector 9. The drive motor 15 is controlled by the control device 16 to run the first ball screw mechanism, so that the corner reflector 9 is stationary at different positions. The millimeter-wave radar body 18 outputs data and uploads it to the control device 16. The ranging accuracy of the millimeter-wave radar body 18 is judged based on the reading of the millimeter-wave radar body 18 and the moving distance reading of the first slide 12.

[0030] The control device 16 controls the servo motor 4 to adjust the millimeter-wave radar body 18 to the standard direction. At this time, the millimeter-wave radar body 18 faces the corner reflector 9. The control device 16 controls the drive motor 15 to run the first ball screw mechanism to keep the corner reflector 9 stationary in a certain position. The control device 16 controls the servo motor 4 to adjust the rotation of the millimeter-wave radar body 18. The output data of the millimeter-wave radar body 18 is uploaded to the control device 16. Based on the readings of the millimeter-wave radar body 18 and the servo motor 4, the horizontal angular accuracy of the millimeter-wave radar body 18 is determined.

[0031] The control device 16 controls the servo motor 4 to adjust the millimeter-wave radar body 18 to the standard direction. At this time, the millimeter-wave radar body 18 faces the corner reflector 9. Keep the millimeter-wave radar body 18 stationary. The control device 16 controls the drive motor 14 to run the second ball screw mechanism, so that the corner reflector 9 moves vertically up and down. The output data of the millimeter-wave radar body 18 is uploaded to the control device 16. Based on the readings of the millimeter-wave radar body 18 and the servo motor 4, the vertical angular accuracy of the millimeter-wave radar body 18 is determined.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A millimeter-wave radar testing device, comprising a frame (1), characterized in that, The frame (1) is provided with a first slide block (12) along its length direction, and a second slide block (8) is provided on the first slide block (12) along the vertical direction. A corner reflector (9) is fixedly installed on the second slide block (8). A servo motor (4) is fixedly installed at one end of the frame (1). The output shaft of the servo motor (4) is connected to a rotating shaft (5) through a coupling. A top plate (6) is fixedly connected to the top of the rotating shaft (5). Several millimeter-wave radar bodies (18) are detachably connected to the top plate (6). A control device (16) for controlling the overall device is fixedly installed on the frame (1).

2. The millimeter-wave radar testing device according to claim 1, characterized in that, The top plate (6) is fixedly connected to corner plates (17) around its perimeter. A clamping plate (19) is elastically connected to the vertical end of the corner plate (17), and the millimeter-wave radar body (18) is clamped between the two sets of clamping plates (19).

3. The millimeter-wave radar testing device according to claim 2, characterized in that, A guide rod (20) passing through the corner plate (17) is fixedly connected to the clamp plate (19). A compression spring (21) is sleeved on the guide rod (20). The two ends of the compression spring (21) are fixedly connected to the corner plate (17) and the clamp plate (19) respectively.

4. The millimeter-wave radar testing device according to claim 3, characterized in that, The frame (1) is fixedly connected to the two sides of the first slide rail (2), and the bottom sides of the first slide block (12) are fixedly connected to the first slide rail (2) and the first slider (3) is slidably engaged with the first slide rail (2). The frame (1) is rotatably mounted with the first lead screw (10), and the frame (1) is fixedly mounted with the first drive motor (15) which is connected to the first lead screw (10). The bottom of the first slide block (12) is fixedly connected with the first ball nut assembled on the first lead screw (10).

5. A millimeter-wave radar testing device according to claim 4, characterized in that, The first slide block (12) is fixedly connected to the second slide rail (7) on both sides, and the second slide block (8) is fixedly connected to the second slide rail (7) on both sides, with the second slider (13) slidingly engaged. The first slide block (12) is rotatably mounted with the second lead screw (11), and the first slide block (12) is fixedly mounted with the second drive motor (14) which is connected to the second lead screw (11). The second slide block (8) is fixedly mounted with the second ball nut assembled on the second lead screw (11).

6. The millimeter-wave radar testing device according to claim 5, characterized in that, The control device (16) controls the overall device through an industrial control computer, and the test results fed back by the radar under test are stored in the storage component of the industrial control computer.

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