Millimeter Wave Radar Testing System and Method

Abstract

An embodiment of the present invention relates to the technical field of radar testing, and discloses a millimeter-wave radar testing system and method. The system includes: a control device, a radar adjustment device, and a detection device; the control device is electrically connected to the radar adjustment device and the detection device respectively; a millimeter-wave radar is installed on the radar adjustment device, and a corner reflector is installed on the detection device; the control device is used to send a first control signal to the radar adjustment device and a second control signal to the detection device; the radar adjustment device is used to adjust the millimeter-wave radar to a target field of view angle according to the first control signal, so that the millimeter-wave radar emits an electromagnetic wave signal at the target field of view angle; the detection device is used to adjust the corner reflector to a target height according to the second control signal; the control device is further used to calculate the performance parameters of the millimeter-wave radar according to the echo signal received by the millimeter-wave radar. Through the above method, the embodiment of the present invention realizes the automatic testing of the performance parameters of the millimeter-wave radar.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of radar testing, and particularly to a millimeter-wave radar testing system and method. Background Art

[0002] A millimeter-wave radar refers to a radar operating in the millimeter-wave frequency band. Due to the advantages of high detection accuracy and strong anti-interference ability of millimeter-wave radars, they are widely used in the field of intelligent driving.

[0003] In order to test the performance of a millimeter-wave radar, it is necessary to detect the performance parameters of the millimeter-wave radar. After the millimeter-wave radar emits electromagnetic waves, the corner reflector reflects the electromagnetic waves emitted by the millimeter-wave radar to generate an echo signal. The millimeter-wave radar processes the received echo signal to obtain the detection position information of the corner reflector. By comparing the detection position information of the corner reflector obtained by the millimeter-wave radar with the actual position information of the corner reflector, the performance parameters of the millimeter-wave radar can be obtained. However, in the process of implementing the embodiments of the present invention, the inventors found that: when testing the performance of a millimeter-wave radar in related technologies, it is necessary to manually adjust the position of the corner reflector repeatedly, and the test efficiency is relatively low. Summary of the Invention

[0004] In view of the above problems, the embodiments of the present invention provide a millimeter-wave radar testing system and method for solving the problem of relatively low test efficiency of millimeter-wave radars in the prior art.

[0005] According to one aspect of the embodiments of the present invention, a millimeter-wave radar testing system is provided. The system includes: a control device, a radar adjustment device, and a detection device; the control device is electrically connected to the radar adjustment device and the detection device respectively; a millimeter-wave radar is installed on the radar adjustment device, and a corner reflector is installed on the detection device;

[0006] The control device is configured to send a first control signal to the radar adjustment device and a second control signal to the detection device;

[0007] The radar adjustment device is configured to adjust the millimeter-wave radar to a target field of view angle according to the first control signal, so that the millimeter-wave radar emits an electromagnetic wave signal to the corner reflector at the target field of view angle;

[0008] The detection device is configured to adjust the corner reflector to a target height according to the second control signal, so that the corner reflector reflects the electromagnetic wave signal at the target height to generate an echo signal;

[0009] The control device is further configured to calculate the performance parameters of the millimeter-wave radar according to the echo signal received by the millimeter-wave radar.

[0010] In an alternative manner, the performance parameters of the millimeter-wave radar include: ranging performance parameters, angle measurement performance parameters, and altitude measurement performance parameters;

[0011] The control device is configured to:

[0012] According to the echo signal, calculate the detection distance between the corner reflector and the millimeter-wave radar, obtain the actual distance between the corner reflector and the millimeter-wave radar, and calculate the ranging performance parameters of the millimeter-wave radar based on the detection distance and the actual distance;

[0013] According to the echo signal, calculate the detection angle of the corner reflector, and calculate the angle measurement performance parameters of the millimeter-wave radar based on the detection angle and the actual angle of the corner reflector;

[0014] According to the echo signal, calculate the detection altitude of the corner reflector, and calculate the altitude measurement performance parameters of the millimeter-wave radar based on the detection altitude and the actual altitude of the corner reflector.

[0015] In an alternative manner, the field of view angle includes a horizontal field of view angle and a pitch and roll field of view angle;

[0016] The radar adjustment device includes a first base and a rotating body. The bottom end of the rotating body is connected to the first base through a first motor, and the first motor is installed inside the first base;

[0017] The top end of the rotating body is provided with a support crossbeam, the support crossbeam is connected to a second motor, and the millimeter-wave radar is installed on the support crossbeam;

[0018] The first motor is configured to drive the rotating body to rotate relative to the first base according to the first control signal to adjust the horizontal field of view angle of the millimeter-wave radar;

[0019] The second motor is configured to drive the support crossbeam to rotate relative to the rotating body according to the first control signal to adjust the pitch and roll field of view angle of the millimeter-wave radar.

[0020] In an alternative manner, a radar clamp is provided in the middle of the support crossbeam, and the millimeter-wave radar is connected to the support crossbeam through the radar clamp.

[0021] In an alternative manner, the detection device includes a second base and a corner reflector rod. One end of the corner reflector rod is rotatably installed on the second base;

[0022] The corner reflector is fixedly connected to a slider installed on the corner reflector rod;

[0023] A third motor is installed inside the second base, and the third motor is connected to the slider;

[0024] The third motor is configured to drive the slider to slide up and down along the corner reflector rod according to the second control signal, so as to adjust the height of the corner reflector.

[0025] In an alternative embodiment, a fourth motor is installed inside the second base, and the fourth motor is configured to drive one end of the corner reflector rod to rotate relative to the second base according to a control signal, so that the corner reflector rod can be switched between a lying posture and an upright posture.

[0026] In an alternative embodiment, a foundation pit is provided on the installation plane of the second base;

[0027] When the corner reflector rod is in the lying posture, the corner reflector is received in the foundation pit.

[0028] In an alternative embodiment, the system includes a plurality of detection devices;

[0029] The plurality of detection devices are installed on one side of the radar adjustment device, and the installation positions of the plurality of detection devices are spaced apart by a preset distance in sequence.

[0030] In an alternative embodiment, the control device is configured to:

[0031] Determine a target detection device, where the target detection device is any one of the detection devices;

[0032] Generate a control signal according to the installation position of the target detection device, and send the generated control signal to the detection device to control the corner reflector rod of the target detection device to be in the upright posture, and the corner reflector rods of the detection devices other than the target detection device to be in the lying posture.

[0033] In an alternative embodiment, the third motor is connected to the slider through a traction rope;

[0034] The other end of the corner reflector rod is provided with a roller;

[0035] One end of the traction rope is connected to the third motor, and the other end is connected to the slider through the roller.

[0036] In an alternative embodiment, the control device is electrically connected to the radar adjustment device and the detection device through control cables, and the control cables are laid underground.

[0037] According to another aspect of the embodiments of the present invention, there is provided a method for testing a millimeter-wave radar, characterized in that it is applied to the above-mentioned millimeter-wave radar testing system, and the system includes: a control device, a radar adjustment device, and a detection device; the control device is electrically connected to the radar adjustment device and the detection device respectively; a millimeter-wave radar is installed on the radar adjustment device, and a corner reflector is installed on the detection device;

[0038] The method includes:

[0039] The control device sends a first control signal to the radar adjustment device and a second control signal to the detection device;

[0040] The radar adjustment device adjusts the millimeter-wave radar to a target field of view angle according to the first control signal, so that the millimeter-wave radar emits an electromagnetic wave signal to the corner reflector at the target field of view angle;

[0041] The detection device adjusts the corner reflector to a target height according to the second control signal, so that the corner reflector reflects the electromagnetic wave signal at the target height to generate an echo signal;

[0042] The control device calculates the performance parameters of the millimeter-wave radar according to the echo signal received by the millimeter-wave radar.

[0043] In an optional manner, the performance parameters of the millimeter-wave radar include: ranging performance parameters, angle measurement performance parameters, and height measurement performance parameters, and the method includes:

[0044] The control device calculates the detection distance between the corner reflector and the millimeter-wave radar according to the echo signal, obtains the actual distance between the corner reflector and the millimeter-wave radar, and calculates the ranging performance parameters of the millimeter-wave radar according to the detection distance and the actual distance;

[0045] The control device calculates the detection angle of the corner reflector according to the echo signal, and calculates the angle measurement performance parameters of the millimeter-wave radar according to the detection angle and the actual angle of the corner reflector;

[0046] The control device calculates the detection height of the corner reflector according to the echo signal, and calculates the height measurement performance parameters of the millimeter-wave radar according to the detection height and the actual height of the corner reflector.

[0047] According to another aspect of the embodiments of the present invention, a millimeter-wave radar testing method is provided, which is applied to the control device in the above-mentioned millimeter-wave radar testing system. The system includes: the control device, a radar adjustment device, and a detection device; the control device is electrically connected to the radar adjustment device and the detection device respectively; a millimeter-wave radar is installed on the radar adjustment device, and a corner reflector is installed on the detection device;

[0048] The method includes:

[0049] Sending a first control signal to the radar adjustment device, so that the radar adjustment device adjusts the millimeter-wave radar to a target field of view angle according to the first control signal, and the millimeter-wave radar emits an electromagnetic wave signal to the corner reflector at the target field of view angle;

[0050] Sending a second control signal to the detection device, so that the detection device adjusts the corner reflector to a target height according to the second control signal, and the corner reflector reflects the electromagnetic wave signal at the target height to generate an echo signal;

[0051] Calculating the performance parameters of the millimeter-wave radar according to the echo signal received by the millimeter-wave radar.

[0052] The millimeter-wave radar testing system according to the embodiments of the present invention includes a control device, a radar adjustment device, and a detection device. The control device is electrically connected to the radar adjustment device and the detection device respectively. A millimeter-wave radar is installed on the radar adjustment device, and a corner reflector is installed on the detection device. The control device is used to send a first control signal to the radar adjustment device, so that the radar adjustment device adjusts the millimeter-wave radar to a target field of view angle according to the first control signal, and the millimeter-wave radar emits an electromagnetic wave signal at the target field of view angle. The control device is also used to send a second control signal to the detection device, so that the detection device adjusts the corner reflector to a target height according to the second control signal. The control device calculates the performance parameters of the millimeter-wave radar according to the echo signal received by the millimeter-wave radar. It can be seen that during the testing process, the field of view angle of the millimeter-wave radar can be automatically adjusted through the first control signal sent by the control device, and the height of the corner reflector can be automatically adjusted through the second control signal sent by the control device. The testing process does not require manual intervention, which can improve the testing efficiency of the millimeter-wave radar.

[0053] The above description is only an overview of the technical solutions of the embodiments of the present invention. In order to be able to understand the technical means of the embodiments of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features, and advantages of the embodiments of the present invention more obvious and understandable, the following specifically describes the embodiments of the present invention. Brief Description of the Drawings

[0054] The accompanying drawings are only used to illustrate the embodiments and are not considered as limiting the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0055] Figure 1 Shows a schematic structural diagram of a millimeter-wave radar test system provided by an embodiment of the present invention;

[0056] Figure 2 Shows a schematic structural diagram of a radar adjustment device provided by an embodiment of the present invention;

[0057] Figure 3 Shows a schematic structural diagram of a detection device provided by an embodiment of the present invention;

[0058] Figure 4 Shows an enlarged schematic diagram of a partial structure of a detection device provided by an embodiment of the present invention;

[0059] Figure 5 Shows a schematic structural diagram of a millimeter-wave radar test system provided by another embodiment of the present invention;

[0060] Figure 6 Shows a schematic flowchart of a millimeter-wave radar test method provided by an embodiment of this aspect;

[0061] Figure 7 Shows a schematic flowchart of a millimeter-wave radar test method provided by another embodiment of the present invention. Detailed Embodiments

[0062] Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein.

[0063] Figure 1 Shows a schematic structural diagram of a millimeter-wave radar test system according to an embodiment of the present invention. As Figure 1 shown, the millimeter-wave radar test system includes: a control device 100, a radar adjustment device 200, and a detection device 300.

[0064] Among them, the control device 100 is electrically connected to the radar adjustment device 200 and the detection device 300 respectively. The control device 100 includes a control device, which can be an intelligent hardware device such as a tablet device, a mobile phone device, or a desktop computer device. An application software can be installed and run on the control device, and the application software includes a control interface. A millimeter-wave radar 230 is installed on the radar adjustment device 200. The millimeter-wave radar 230 is a radar with a working frequency band in the millimeter-wave band, and has advantages such as high detection accuracy and strong anti-interference ability. A corner reflector 330 is installed on the detection device 300. The corner reflector 330 can amplify the received electromagnetic wave signal and generate an echo signal.

[0065] Among them, the control device 100 is used to send a first control signal to the radar adjustment device 200 and a second control signal to the detection device 300. For example, the control device 100 can send the first control signal to the radar adjustment device 200 and the second control signal to the detection device 300 respectively through the application software installed on the control device. The radar adjustment device 200 is used to adjust the millimeter-wave radar 230 to a target field of view angle according to the first control signal, so that the millimeter-wave radar 230 emits an electromagnetic wave signal to the corner reflector 330 at the target field of view angle. The detection device 300 is used to adjust the corner reflector 330 to a target height according to the second control signal, so that the corner reflector 330 reflects the electromagnetic wave signal at the target height to generate an echo signal. The control device 100 is also used to calculate the performance parameters of the millimeter-wave radar 230 according to the echo signal received by the millimeter-wave radar 230.

[0066] In an alternative manner, the performance parameters of the millimeter-wave radar 230 include ranging performance parameters, angle measurement performance parameters, and height measurement performance parameters. The ranging performance parameters are used to characterize the accuracy of the detection distance of the millimeter-wave radar 230, the angle measurement performance parameters are used to characterize the accuracy of the detection angle of the millimeter-wave radar 230, and the height measurement performance parameters are used to characterize the accuracy of the detection height of the millimeter-wave radar 230.

[0067] Among them, the control device 100 is respectively used for: calculating the detection distance between the corner reflector 330 and the millimeter-wave radar 230 according to the echo signal, obtaining the actual distance between the corner reflector 330 and the millimeter-wave radar 230, and calculating the ranging performance parameters of the millimeter-wave radar 230 according to the detection distance and the actual distance; calculating the detection angle of the corner reflector 330 according to the echo signal, and calculating the angle measurement performance parameters of the millimeter-wave radar 230 according to the detection angle and the actual angle of the corner reflector 330; calculating the detection height of the corner reflector 330 according to the echo signal, and calculating the height measurement performance parameters of the millimeter-wave radar 230 according to the detection height and the actual height of the corner reflector 330. The control device of the control device 100 can obtain the actual distance between the corner reflector 330 and the millimeter-wave radar 230, the actual angle of the corner reflector 330, and the actual height of the corner reflector 330 in real time.

[0068] The millimeter-wave radar test system according to the embodiment of the present invention includes a control device, a radar adjustment device, and a detection device. The control device is electrically connected to the radar adjustment device and the detection device respectively. A millimeter-wave radar is installed on the radar adjustment device, and a corner reflector is installed on the detection device; the control device is used to send a first control signal to the radar adjustment device, so that the radar adjustment device adjusts the millimeter-wave radar to the target field of view angle according to the first control signal, and the millimeter-wave radar emits an electromagnetic wave signal at the target field of view angle; the control device is further used to send a second control signal to the detection device, so that the detection device adjusts the corner reflector to the target height according to the second control signal; the control device calculates the performance parameters of the millimeter-wave radar according to the echo signal received by the millimeter-wave radar. It can be seen that during the test, the field of view angle of the millimeter-wave radar can be automatically adjusted through the first control signal sent by the control device, and the height of the corner reflector can be automatically adjusted through the second control signal sent by the control device. The test process does not require manual intervention, which can improve the test efficiency of the millimeter-wave radar.

[0069] Figure 2 The structural schematic diagram of the radar adjustment device according to the embodiment of the present invention is shown. As Figure 2 shown, the radar adjustment device 200 includes a first base 210 and a rotating body 220. The rotating body 220 is installed on the first base 210.

[0070] Among them, the bottom end of the rotating body 220 is connected to the first base 210 through the first motor 211, and the first motor 211 is installed inside the first base 210. A support crossbeam 221 is installed at the top end of the rotating body 220, the support crossbeam 221 is connected to the second motor 222, and the millimeter-wave radar 230 is installed on the support crossbeam 221. The field of view angle of the millimeter-wave radar 230 includes the horizontal field of view angle and the pitch and roll field of view angles. The first motor 211 is used to drive the rotating body 220 to rotate relative to the first base 210 according to the first control signal to adjust the horizontal field of view angle of the millimeter-wave radar 230. The second motor 222 is used to drive the support crossbeam 221 to rotate relative to the rotating body 220 according to the first control signal to adjust the pitch and roll field of view angles of the millimeter-wave radar 230. The second motor 222 can be installed at one end of the support crossbeam 221.

[0071] In an optional manner, a radar fixture 223 is provided in the middle of the support crossbeam 221, and the millimeter-wave radar 230 is connected to the support crossbeam 221 through the radar fixture 223. A groove is provided on the radar fixture 223, and the millimeter-wave radar 230 can be arranged in the groove of the radar fixture 223.

[0072] Figure 3 The structural schematic diagram of the detection device according to the embodiment of the present invention is shown. Figure 4 The enlarged schematic diagram of the detection device according to the embodiment of the present invention at A is shown. As Figure 3 、 Figure 4 shown, the detection device 300 includes a second base 310 and a corner reflector rod 320.

[0073] Among them, one end of the corner reflector rod 320 is rotatably installed on the second base 310, and the corner reflector 330 is fixedly connected to the slider 321 installed on the corner reflector rod 320. Further, bolt holes can be respectively provided on the corner reflector 330 and the slider 321, and the corner reflector 330 and the slider 321 are connected by bolts. The slider 321 can slide up and down along the corner reflector rod 320, thereby driving the corner reflector 330 to move and changing the height of the corner reflector 330. A third motor 311 is installed inside the second base 310, and the third motor 311 is connected to the slider 321, so that the third motor 311 can drive the slider 321 to slide up and down along the corner reflector rod 320 when rotating. The third motor 311 drives the slider 321 to slide up and down along the corner reflector rod 320 according to the second control signal to adjust the height of the corner reflector 330.

[0074] In an optional manner, a fourth motor 312 is installed inside the second base 310, and the fourth motor 312 is used to drive one end of the corner reflector rod 320 to rotate relative to the second base 310 according to the control signal, so that the corner reflector rod 320 can be switched between the lying posture and the upright posture.

[0075] In an alternative manner, a foundation pit 340 is provided on the installation plane of the second base 310. When the corner reflector rod 320 is in a lying-down posture, the corner reflector 330 is received in the foundation pit 340.

[0076] Figure 5 The structural schematic diagram of a millimeter-wave radar test system provided by another embodiment of the present invention is shown. As Figure 5 shown, the millimeter-wave radar test system according to the embodiment of the present invention may include a plurality of detection devices 300. The plurality of detection devices 300 are installed on one side of the radar adjustment device 200, and the installation positions of the plurality of detection devices 300 are sequentially spaced apart by a preset distance, so that there are different distances between each detection device 300 and the radar adjustment device 200, and there are different actual distances between the corner reflector 330 on each detection device 300 and the millimeter-wave radar 230 on the radar adjustment device 200. According to different test requirements, different detection devices 300 can be selected from the plurality of detection devices 300.

[0077] In an alternative manner, the control device 100 is used to determine a target detection device, and the target detection device is any one of the detection devices 300. A control signal is generated according to the installation position of the target detection device, and the generated control signal is sent to all the detection devices 300 to control the corner reflector rod 320 of the target detection device to be in an upright posture, and the corner reflector rods 320 of the detection devices 300 other than the target detection device to be in a lying-down posture, thereby avoiding interference of the detection devices 300 other than the target detection device with the electromagnetic waves of the millimeter-wave radar 230 and making the test results more accurate.

[0078] In an alternative manner, the third motor 311 is connected to the slider 321 through a traction rope 323, and a roller 322 is provided at the other end of the corner reflector rod 320; one end of the traction rope 323 is connected to the third motor 311, and the other end is connected to the slider 321 through the roller 322.

[0079] In an alternative manner, the control device 100 is electrically connected to the radar adjustment device 200 and the detection device 300 respectively through a control cable 400, and the control cable 400 is laid underground. The control cable 400 can supply power to the radar adjustment device 200 and the detection device 300, and send a first control signal and a second control signal to the radar adjustment device 200 and the detection device 300 respectively.

[0080] The millimeter-wave radar test system according to an embodiment of the present invention includes a control device, a radar adjustment device, and a detection device. The control device is electrically connected to the radar adjustment device and the detection device respectively. A millimeter-wave radar is installed on the radar adjustment device, and a corner reflector is installed on the detection device. The control device is configured to send a first control signal to the radar adjustment device, so that the radar adjustment device adjusts the millimeter-wave radar to a target field of view angle according to the first control signal, and the millimeter-wave radar emits an electromagnetic wave signal at the target field of view angle. The control device is further configured to send a second control signal to the detection device, so that the detection device adjusts the corner reflector to a target height according to the second control signal. The control device calculates the performance parameters of the millimeter-wave radar according to the echo signal received by the millimeter-wave radar. It can be seen that during the test, the field of view angle of the millimeter-wave radar can be automatically adjusted by the first control signal sent by the control device, and the height of the corner reflector can be automatically adjusted by the second control signal sent by the control device. The test process does not require manual intervention, which can improve the test efficiency of the millimeter-wave radar.

[0081] Figure 6 The flowchart of the millimeter-wave radar test method according to an embodiment of the present invention is shown. This method is applied to the millimeter-wave radar test system in any of the foregoing embodiments. The millimeter-wave radar test system includes: a control device, a radar adjustment device, and a detection device. The control device is electrically connected to the radar adjustment device and the detection device respectively. A millimeter-wave radar is installed on the radar adjustment device, and a corner reflector is installed on the detection device. As Figure 6 shown, the millimeter-wave radar test method according to an embodiment of the present invention includes:

[0082] Step 501: The control device sends a first control signal to the radar adjustment device and a second control signal to the detection device.

[0083] Among them, the control device may include a control device, and an application software may be installed and run on the control device. The control device may generate a first control signal and a second control signal through the application software, send the first control signal to the radar adjustment device, and send the second control signal to the detection device.

[0084] Step 502: The radar adjustment device adjusts the millimeter-wave radar to a target field of view angle according to the first control signal, so that the millimeter-wave radar emits an electromagnetic wave signal at the target field of view angle to the corner reflector.

[0085] Among them, the first control signal contains command information for adjusting the field of view angle of the millimeter-wave radar. After receiving the first control signal, the radar adjustment device can adjust the millimeter-wave radar to the target field of view angle according to the first control signal, so that the millimeter-wave radar emits an electromagnetic wave signal to the corner reflector at the target field of view angle. The first control signal may also contain command information for powering on and off the millimeter-wave radar. The radar adjustment device can also power on and off the millimeter-wave radar according to the first control signal.

[0086] Step 503: The detection device adjusts the corner reflector to the target height according to the second control signal, so that the corner reflector reflects the electromagnetic wave signal at the target height to generate an echo signal.

[0087] Among them, the second control signal contains command information for adjusting the height of the corner reflector. After receiving the second control signal, the detection device can adjust the corner reflector to the target height according to the second control signal, so that the corner reflector reflects the electromagnetic wave signal at the target height and generates an echo signal.

[0088] Step 504: The control device calculates the performance parameters of the millimeter-wave radar according to the echo signal received by the millimeter-wave radar.

[0089] Among them, the millimeter-wave radar can receive the echo signal generated by the corner reflector and send the received echo signal to the control device. The control device further calculates the performance parameters of the millimeter-wave radar according to the echo signal received by the millimeter-wave radar.

[0090] In an optional manner, the performance parameters of the millimeter-wave radar include: ranging performance parameters, angle measurement performance parameters, and height measurement performance parameters. The ranging performance parameters are used to characterize the accuracy of the detection distance of the millimeter-wave radar, the angle measurement performance parameters are used to characterize the accuracy of the detection angle of the millimeter-wave radar, and the height measurement performance parameters are used to characterize the accuracy of the detection height of the millimeter-wave radar.

[0091] Among them, the control device can calculate the detection distance between the corner reflector and the millimeter-wave radar according to the echo signal, obtain the actual distance between the corner reflector and the millimeter-wave radar, and calculate the ranging performance parameters of the millimeter-wave radar according to the detection distance and the actual distance; the control device can calculate the detection angle of the corner reflector according to the echo signal, and calculate the angle measurement performance parameters of the millimeter-wave radar according to the detection angle and the actual angle of the corner reflector; the control device can calculate the detection height of the corner reflector according to the echo signal, and calculate the height measurement performance parameters of the millimeter-wave radar according to the detection height and the actual height of the corner reflector. The control device of the control device can obtain the actual distance between the corner reflector and the millimeter-wave radar, the actual angle of the corner reflector, and the actual height of the corner reflector in real time.

[0092] The millimeter-wave radar test system according to an embodiment of the present invention includes a control device, a radar adjustment device, and a detection device. The control device is electrically connected to the radar adjustment device and the detection device respectively. A millimeter-wave radar is installed on the radar adjustment device, and a corner reflector is installed on the detection device. The control device is configured to send a first control signal to the radar adjustment device, so that the radar adjustment device adjusts the millimeter-wave radar to a target field of view angle according to the first control signal, and the millimeter-wave radar emits an electromagnetic wave signal at the target field of view angle. The control device is further configured to send a second control signal to the detection device, so that the detection device adjusts the corner reflector to a target height according to the second control signal. The control device calculates the performance parameters of the millimeter-wave radar according to the echo signal received by the millimeter-wave radar. It can be seen that during the test, the field of view angle of the millimeter-wave radar can be automatically adjusted by the first control signal sent by the control device, and the height of the corner reflector can be automatically adjusted by the second control signal sent by the control device. The test process does not require manual intervention, which can improve the test efficiency of the millimeter-wave radar.

[0093] Figure 7 FIG. shows a schematic flowchart of a millimeter-wave radar test method according to another embodiment of the present invention. This method is applied to the control device in the millimeter-wave radar test system in any of the foregoing embodiments. The millimeter-wave radar test system includes: a control device, a radar adjustment device, and a detection device. The control device is electrically connected to the radar adjustment device and the detection device respectively; a millimeter-wave radar is installed on the radar adjustment device, and a corner reflector is installed on the detection device. As Figure 7 shown, the millimeter-wave radar test method according to an embodiment of the present invention includes:

[0094] Step 601: Send a first control signal to the radar adjustment device, so that the radar adjustment device adjusts the millimeter-wave radar to a target field of view angle according to the first control signal, and the millimeter-wave radar emits an electromagnetic wave signal at the target field of view angle to the corner reflector.

[0095] Among them, the control device includes a control device, and an application software can be installed and run on the control device. The control device can generate a first control signal through the application software. The first control signal can include instruction information for adjusting the field of view angle of the millimeter-wave radar. The control device can send a first control signal to the radar adjustment device, so that the radar adjustment device adjusts the millimeter-wave radar to a target field of view angle according to the first control signal, and makes the millimeter-wave radar emit an electromagnetic wave signal at the target field of view angle to the corner reflector.

[0096] Step 602: Send a second control signal to the detection device, so that the detection device adjusts the corner reflector to a target height according to the second control signal, and the corner reflector reflects the electromagnetic wave signal at the target height to generate an echo signal.

[0097] Among them, the control device can generate a second control signal through an application software. The second control signal can include instruction information for adjusting the height of the corner reflector. The control device can send the second control signal to the detection device so that the detection device adjusts the corner reflector to the target height according to the second control signal, and enables the corner reflector to reflect the electromagnetic wave signal at the target height and generate an echo signal.

[0098] Step 603: Calculate the performance parameters of the millimeter-wave radar according to the echo signal received by the millimeter-wave radar.

[0099] Among them, the millimeter-wave radar can receive the echo signal generated by the corner reflector and send the received echo signal to the control device. The control device further calculates the performance parameters of the millimeter-wave radar according to the echo signal received by the millimeter-wave radar.

[0100] The millimeter-wave radar test system according to an embodiment of the present invention includes a control device, a radar adjustment device, and a detection device. The control device is electrically connected to the radar adjustment device and the detection device respectively. A millimeter-wave radar is installed on the radar adjustment device, and a corner reflector is installed on the detection device. The control device is configured to send a first control signal to the radar adjustment device so that the radar adjustment device adjusts the millimeter-wave radar to the target field of view angle according to the first control signal, and the millimeter-wave radar emits an electromagnetic wave signal at the target field of view angle. The control device is further configured to send a second control signal to the detection device so that the detection device adjusts the corner reflector to the target height according to the second control signal. The control device calculates the performance parameters of the millimeter-wave radar according to the echo signal received by the millimeter-wave radar. It can be seen that during the test, the field of view angle of the millimeter-wave radar can be automatically adjusted through the first control signal sent by the control device, and the height of the corner reflector can be automatically adjusted through the second control signal sent by the control device. The test process does not require manual intervention, which can improve the test efficiency of the millimeter-wave radar.

[0101] An embodiment of the present invention provides a millimeter-wave radar test device for performing the above-mentioned millimeter-wave radar test method.

[0102] An embodiment of the present invention provides a computer program, which can be called by a processor to enable a computing device to execute the millimeter-wave radar test method in any of the above method embodiments.

[0103] An embodiment of the present invention provides a computer program product. The computer program product includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions. When the program instructions run on a computer, the computer is enabled to execute the millimeter-wave radar test method in any of the above method embodiments.

[0104] The algorithms or displays provided herein are not inherently related to any particular computer, virtual system, or other device. A variety of general-purpose systems may also be used in conjunction with the teachings provided herein. The structure required to construct such systems will be apparent from the above description. In addition, embodiments of the present invention are not directed to any particular programming language. It should be understood that the teachings of the present invention described herein can be implemented in a variety of programming languages, and the description of a particular language above is for the purpose of disclosing the best mode of the present invention.

[0105] In the specification provided herein, a number of specific details are set forth. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of the present specification.

[0106] Similarly, it should be understood that, in order to streamline the present invention and assist in understanding one or more of the various inventive aspects, in the above description of the exemplary embodiments of the present invention, the various features of the embodiments of the present invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, the disclosed methods should not be construed as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim.

[0107] Those skilled in the art will appreciate that the modules in the devices in the embodiments can be adaptively changed and disposed in one or more devices different from the embodiments. The modules or units or components in the embodiments can be combined into one module or unit or component, and they can be divided into multiple sub-modules or sub-units or sub-components. Except that at least some of such features and / or processes or units are mutually exclusive, any combination can be used to combine all the features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all the processes or units of any method or device so disclosed. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) can be replaced by an alternative feature that provides the same, equivalent, or similar purpose.

[0108] It should be noted that the above embodiments are illustrative of the present invention and not restrictive thereof, and alternative embodiments can be designed by those skilled in the art without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in the claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In the unit claims listing several devices, several of these devices may be embodied by the same item of hardware. The use of the words first, second, and third, etc. does not denote any order. These words can be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be construed as limiting the order of execution.

Claims

1. A millimeter-wave radar test system, characterized in that, the system includes: a control device, a radar adjustment device, and a plurality of detection devices; the control device is electrically connected to the radar adjustment device and the plurality of detection devices respectively; a millimeter-wave radar is installed on the radar adjustment device, and a corner reflector is installed on the detection device; the control device is configured to send a first control signal to the radar adjustment device and a second control signal to the detection device; the radar adjustment device is configured to adjust the millimeter-wave radar to a target field of view angle according to the first control signal, so that the millimeter-wave radar emits an electromagnetic wave signal to the corner reflector at the target field of view angle; the detection device is configured to adjust the corner reflector to a target height according to the second control signal, so that the corner reflector reflects the electromagnetic wave signal at the target height to generate an echo signal; the detection device further includes a second base and a corner reflector rod, and one end of the corner reflector rod is rotatably installed on the second base; a fourth motor is installed inside the second base, and the fourth motor is configured to drive one end of the corner reflector rod to rotate relative to the second base according to a control signal, so that the corner reflector rod switches between a lying posture and an upright posture; the control device is further configured to calculate performance parameters of the millimeter-wave radar according to the echo signal received by the millimeter-wave radar; the control device is further configured to determine a target detection device, where the target detection device is any one of the detection devices, generate a control signal according to the installation position of the target detection device, and send the generated control signal to each of the detection devices to control the corner reflector rod of the target detection device to be in an upright posture and control the corner reflector rods of the detection devices other than the target detection device to be in a lying posture.

2. The system according to claim 1, characterized in that, the performance parameters of the millimeter-wave radar include: ranging performance parameters, angle measurement performance parameters, and height measurement performance parameters; the control device is configured to: calculate the detection distance between the corner reflector and the millimeter-wave radar according to the echo signal, obtain the actual distance between the corner reflector and the millimeter-wave radar, and calculate the ranging performance parameters of the millimeter-wave radar according to the detection distance and the actual distance; calculate the detection angle of the corner reflector according to the echo signal, and calculate the angle measurement performance parameters of the millimeter-wave radar according to the detection angle and the actual angle of the corner reflector; calculate the detection height of the corner reflector according to the echo signal, and calculate the height measurement performance parameters of the millimeter-wave radar according to the detection height and the actual height of the corner reflector.

3. The system according to claim 1 or 2, characterized in that, the field of view angle includes a horizontal field of view angle and a pitch and yaw field of view angle; the radar adjustment device includes a first base and a rotating body, and the bottom end of the rotating body is connected to the first base through a first motor, and the first motor is installed inside the first base; A support crossbeam is installed at the top of the rotating body. The support crossbeam is connected to the second motor, and the millimeter-wave radar is installed on the support crossbeam. The first motor is configured to drive the rotating body to rotate relative to the first base according to the first control signal, so as to adjust the horizontal field of view angle of the millimeter-wave radar. The second motor is configured to drive the support crossbeam to rotate relative to the rotating body according to the first control signal, so as to adjust the elevation field of view angle of the millimeter-wave radar.

4. The system according to claim 3, wherein, A radar fixture is arranged in the middle of the support crossbeam, and the millimeter-wave radar is connected to the support crossbeam through the radar fixture.

5. The system according to claim 1 or 2, wherein, The corner reflector is fixedly connected to a slider mounted on the corner reflector rod; A third motor is installed inside the second base, and the third motor is connected to the slider; The third motor is configured to drive the slider to slide up and down along the corner reflector rod according to the second control signal, so as to adjust the height of the corner reflector.

6. The system according to claim 1, wherein, A foundation pit is arranged on the installation plane of the second base; When the corner reflector rod is in a lying posture, the corner reflector is received in the foundation pit.

7. The system according to claim 6, wherein, The multiple detection devices are installed on one side of the radar adjustment device, and the installation positions of the multiple detection devices are spaced at preset intervals in sequence.

8. The system according to claim 5, wherein, The third motor is connected to the slider through a traction rope; A roller is arranged at the other end of the corner reflector rod; One end of the traction rope is connected to the third motor, and the other end is connected to the slider through the roller.

9. The system according to claim 1, wherein, The control device is electrically connected to the radar adjustment device and the detection device respectively through control cables, and the control cables are laid underground.

10. A method for testing a millimeter-wave radar, wherein, It is applied to the millimeter-wave radar test system according to any one of claims 1 to 9. The system includes: a control device, a radar adjustment device and a detection device; the control device is electrically connected to the radar adjustment device and the detection device respectively; a millimeter-wave radar is installed on the radar adjustment device, and a corner reflector is installed on the detection device; The method includes: The control device sends a first control signal to the radar adjustment device and a second control signal to the detection device; The radar adjustment device adjusts the millimeter-wave radar to a target field of view angle according to the first control signal, so that the millimeter-wave radar emits an electromagnetic wave signal to the corner reflector at the target field of view angle; The detection device adjusts the corner reflector to a target height according to the second control signal, so that the corner reflector reflects the electromagnetic wave signal at the target height to generate an echo signal; The control device calculates the performance parameters of the millimeter-wave radar according to the echo signal received by the millimeter-wave radar.

11. The method according to claim 10, wherein, the performance parameters of the millimeter-wave radar include: ranging performance parameters, angle measurement performance parameters, and altitude measurement performance parameters, and the method includes: the control device calculates the detection distance between the corner reflector and the millimeter-wave radar according to the echo signal, obtains the actual distance between the corner reflector and the millimeter-wave radar, and calculates the ranging performance parameters of the millimeter-wave radar according to the detection distance and the actual distance; the control device calculates the detection angle of the corner reflector according to the echo signal, and calculates the angle measurement performance parameters of the millimeter-wave radar according to the detection angle and the actual angle of the corner reflector; the control device calculates the detection altitude of the corner reflector according to the echo signal, and calculates the altitude measurement performance parameters of the millimeter-wave radar according to the detection altitude and the actual altitude of the corner reflector.

12. A millimeter-wave radar testing method, wherein, it is applied to the control device in the millimeter-wave radar testing system according to any one of claims 1 to 9, and the system includes: the control device, a radar adjustment device, and a detection device; the control device is electrically connected to the radar adjustment device and the detection device respectively; a millimeter-wave radar is installed on the radar adjustment device, and a corner reflector is installed on the detection device; the method includes: sending a first control signal to the radar adjustment device so that the radar adjustment device adjusts the millimeter-wave radar to a target field of view angle according to the first control signal, and the millimeter-wave radar emits an electromagnetic wave signal to the corner reflector at the target field of view angle; sending a second control signal to the detection device so that the detection device adjusts the corner reflector to a target altitude according to the second control signal, and the corner reflector reflects the electromagnetic wave signal at the target altitude to generate an echo signal; calculating the performance parameters of the millimeter-wave radar according to the echo signal received by the millimeter-wave radar.

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