CN215340298U

CN215340298U - Radar testing device

Info

Publication number: CN215340298U
Application number: CN202120613264.XU
Authority: CN
Inventors: 曾春发; 梁仲文; 余鹏
Original assignee: Guangzhou Candid Electronics Co ltd
Current assignee: Guangzhou Candid Electronics Co ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-12-28
Anticipated expiration: 2031-03-25

Abstract

The utility model relates to a radar testing device, which adopts the technical scheme that: the method comprises the following steps: the device comprises a test box, a rotating device for driving a radar to rotate, a radar tester for sending a test signal to the radar, a translation device for driving the rotating device to be close to or far away from the radar tester, and a controller; the radar tester is fixed in the test box; the translation device is arranged at the bottom of the test box; the rotating device is mounted on the translation device; the inner wall of the test box is provided with a wave absorbing device for absorbing microwaves; the radar tester, the rotating device and the translating device are all electrically connected with the controller; this application has the advantage that conveniently tests the microwave radar.

Description

Radar testing device

Technical Field

The utility model relates to the technical field of radar equipment, in particular to a radar testing device.

Background

Microwave range radar is an electronic sensor that senses the distance to an object by transmitting and receiving radio waves. The detection range of the microwave radar is in the direction of an antenna surface and in a fan shape, and the angle and the distance are required to be tested in the finished product test.

The microwave radar is used for detecting blind areas and mainly testing the distance of a moving object at a certain angle. In the past, microwave radar finished product tests adopt a testing device for moving reflectors, and the reflectors are moved according to a fixed path. When the reflector moves to a certain distance, the microwave radar gives out sound and light indication alarm, so that the detection distance of the microwave radar at a certain angle can be tested. For example, when the detection distance of the microwave radar is measured at three angles of-15 degrees, 0 degrees and 15 degrees, a reflector is required to move at a constant speed from 20 meters away from the three angles, and the distance at the time of alarming is recorded.

In the traditional test method, the microwave radar finished product test is to move a tested object at multiple angles, the test takes long time, and only one test can be completed in about 3 minutes. And the requirement for the test site is high, and a vacant space of 10 x 30 meters is required, so that the space for improvement is left.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a radar testing device which has the advantage of conveniently testing a microwave radar.

The technical purpose of the utility model is realized by the following technical scheme: a radar testing apparatus comprising: the device comprises a test box, a rotating device for driving a radar to rotate, a radar tester for sending a test signal to the radar, a translation device for driving the rotating device to be close to or far away from the radar tester, and a controller; the radar tester is fixed in the test box; the translation device is arranged at the bottom of the test box; the rotating device is mounted on the translation device; the inner wall of the test box is provided with a wave absorbing device for absorbing microwaves; the radar tester, the rotating device and the translating device are all electrically connected with the controller.

Optionally, the translation device includes: a rodless cylinder and a mounting seat; the mounting seat is mounted at the output end of the rodless cylinder; the rotating device is arranged on the mounting seat; the rodless cylinder is arranged in the test box; the rodless cylinder is electrically connected with the controller.

Optionally, the rotating device includes: a motor and a turntable; the motor is arranged on the mounting seat; an output shaft of the motor is fixed with the lower end of the rotary table; the motor is electrically connected with the controller.

Optionally, a blocking piece is mounted on the turntable; the mounting seat is provided with a plurality of sensors which are distributed in a sector shape by taking the rotary table as a circle; and the sensors are all electrically connected with the controller.

Optionally, the wave absorbing device is a wave absorbing sponge.

In conclusion, the utility model has the following beneficial effects: the radar tester fixed in the test box can send out microwaves for receiving by the radar, and the rotary table rotates according to different angles so as to test the detection distance of the microwave radar at each angle; during testing, the translation device drives the microwave radar to be close to or far away from the radar tester, the receiving sensitivity of the microwave radar to be tested can be obtained by approaching the radar tester, and the receiving sensitivity of the microwave radar is obtained by taking the microwave radar tested by the traditional method as a reference group; and then, the measured distance of the microwave radar to be measured can be obtained by carrying out a ratio on the receiving sensitivities of the two, and then, the rotary table is rotated, and the operation is repeated, so that the measured distance of the microwave radar to be measured at each angle can be obtained.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view of A in FIG. 1;

FIG. 3 is a schematic cross-sectional structural view of the present invention;

fig. 4 is a circuit block diagram of the present invention.

In the figure: 1. a test box; 2. a rotating device; 21. a motor; 22. a turntable; 3. a radar tester; 4. a translation device; 41. a rodless cylinder; 42. a mounting seat; 5. a controller; 6. a wave absorbing device; 7. a baffle plate; 8. a sensor.

Detailed Description

In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the utility model are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, configuration, and operation, and therefore should not be construed as limiting the present invention.

The utility model is described in detail below with reference to the figures and examples.

The present invention provides a radar testing apparatus, as shown in fig. 1 to 4, including: the device comprises a test box 1, a rotating device 2 used for driving a radar to rotate, a radar tester 3 used for sending a test signal to the radar, a translation device 4 used for driving the rotating device 2 to be close to or far away from the radar tester 3, and a controller 5; the radar tester 3 is fixed in the test box 1; the translation device 4 is arranged at the bottom of the test box 1; the rotating device 2 is mounted on the translation device 4; the inner wall of the test box 1 is provided with a wave absorbing device 6 for absorbing microwaves; the radar tester 3, the rotating device 2 and the translating device 4 are all electrically connected with the controller 5. The radar tester 3 fixed in the test box 1 can send out microwave for receiving by the radar, and the rotary table 22 rotates according to different angles to change the detection distance of each angle of the microwave radar; during testing, the translation device 4 drives the microwave radar to be close to or far away from the radar tester 3, the receiving sensitivity of the microwave radar to be tested can be obtained by approaching the radar tester 3, and the receiving sensitivity of the microwave radar is obtained by taking the microwave radar which is tested by a traditional method as a reference group; then, the ratio of the receiving sensitivities of the two is carried out to obtain the measuring distance of the microwave radar to be measured, and then the rotary table 22 is rotated, and the operation is repeated to obtain the measuring distance of the microwave radar to be measured at each angle.

Further, the translation device 4 comprises: a rodless cylinder 41 and a mount 42; the mounting seat 42 is mounted at the output end of the rodless cylinder 41; the rotating device 2 is arranged on the mounting seat 42; the rodless cylinder 41 is installed in the test box 1; the rodless cylinder 41 is electrically connected to the controller 5. In the test, the rodless cylinder 41 pushes the mounting seat 42 to gradually approach the radar tester 3, and the controller 5 controls the rodless cylinder 41 to move and stop after obtaining the receiving sensitivity of the microwave radar.

Optionally, the rotating device 2 includes: a motor 21 and a turntable 22; the motor 21 is mounted on the mounting seat 42; an output shaft of the motor 21 is fixed with the lower end of the rotary table 22; the motor 21 is electrically connected to the controller 5. During testing, the motor 21 drives the rotary table 22 to rotate, so that the orientation angle of the antenna surface of the microwave radar to be tested can be changed, and the receiving sensitivity of each angle of the microwave radar to be tested is obtained.

Optionally, a baffle 7 is mounted on the turntable 22; the mounting seat 42 is provided with a plurality of sensors 8 which are distributed in a sector shape by taking the rotary table 22 as a circle; a plurality of the sensors 8 are electrically connected to the controller 5. In the embodiment, 3 sensors 8 are arranged, and the included angles of the antenna surfaces of the microwave radar are respectively-15 degrees, 0 degree and 15 degrees; when the rotary table 22 is rotated, the blocking piece 7 rotates along with the rotary table 22 and can block the sensor 8, and after the sensor 8 senses the blocking piece 7, the controller 5 controls the motor 21 to stop rotating, so that the orientation angle of the antenna surface of the microwave radar to be detected is changed.

Further, the wave absorbing device 6 is a wave absorbing sponge. The wave-absorbing sponge can absorb the microwave emitted by the radar tester 3, and the influence of the reflection of the microwave in the test box 1 on the receiving sensitivity of the microwave radar to be tested is avoided.

The radar testing device can conveniently test the microwave radar.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. A radar testing apparatus, comprising: the device comprises a test box, a rotating device for driving a radar to rotate, a radar tester for sending a test signal to the radar, a translation device for driving the rotating device to be close to or far away from the radar tester, and a controller; the radar tester is fixed in the test box; the translation device is arranged at the bottom of the test box; the rotating device is mounted on the translation device; the inner wall of the test box is provided with a wave absorbing device for absorbing microwaves; the radar tester, the rotating device and the translating device are all electrically connected with the controller.

2. The radar testing device of claim 1, wherein the translation device comprises: a rodless cylinder and a mounting seat; the mounting seat is mounted at the output end of the rodless cylinder; the rotating device is arranged on the mounting seat; the rodless cylinder is arranged in the test box; the rodless cylinder is electrically connected with the controller.

3. The radar testing apparatus of claim 2, wherein the rotation means comprises: a motor and a turntable; the motor is arranged on the mounting seat; an output shaft of the motor is fixed with the lower end of the rotary table; the motor is electrically connected with the controller.

4. The radar testing device according to claim 3, wherein a stopper is mounted on the turntable; the mounting seat is provided with a plurality of sensors which are distributed in a sector shape by taking the rotary table as a circle; and the sensors are all electrically connected with the controller.

5. The radar testing device of claim 1, wherein the wave absorbing device is a wave absorbing sponge.