CN214954053U - Calibration system for millimeter wave radar and vehicle - Google Patents
Calibration system for millimeter wave radar and vehicle Download PDFInfo
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- CN214954053U CN214954053U CN202023170782.3U CN202023170782U CN214954053U CN 214954053 U CN214954053 U CN 214954053U CN 202023170782 U CN202023170782 U CN 202023170782U CN 214954053 U CN214954053 U CN 214954053U
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Abstract
The utility model discloses a calibration system and vehicle to millimeter wave radar in millimeter wave radar field, first power is connected with millimeter wave radar and power conversion module respectively, and power conversion module and laser radar are connected, and the host computer is connected with laser radar and millimeter wave radar communication respectively, is equipped with data display software on the host computer, and first power is used for supplying power for millimeter wave radar; the power supply conversion module is used for converting a power supply output by the first power supply and supplying power to the laser radar; the laser radar and the millimeter wave radar are used for acquiring angle, speed and position information of the target vehicle; the upper computer is used for displaying the angle, the speed and the position information of the target vehicle acquired by the laser radar and the millimeter wave radar, and the accuracy of the millimeter wave radar for detecting the target vehicle is determined by comparing the difference between data by taking the laser radar as a calibration device, so that the cost can be saved, and the calibration complexity can be reduced.
Description
Technical Field
The utility model relates to a millimeter wave radar field especially relates to a calibration system and vehicle to millimeter wave radar.
Background
With the progress of the technology, the intelligent driving technology is mature day by day, and the ADAS advanced driving assistance system has been paid more and more attention by users as the mature intelligent driving technology in the current market. In order to ensure driving safety, in the development process of the vehicle-mounted millimeter wave radar, the function of the millimeter wave radar mounted on a vehicle needs to be correspondingly tested.
The method used for the millimeter wave radar calibration at present is to add a dGPS device on a test vehicle, and the device is many millions of RMB, high in cost and complex in use, and can be operated and used only by specially trained engineering technicians.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect of prior art, the utility model aims at providing a calibration system and vehicle to millimeter wave radar not only can save the cost, can reduce the calibration complexity moreover.
The utility model aims at realizing through the following technical scheme:
the utility model provides a calibration system for millimeter wave radar, which is applied to vehicles, the system comprises a laser radar, a millimeter wave radar, an upper computer, a first power supply and a power supply conversion module, the laser radar, the millimeter wave radar, the first power supply and the power supply conversion module are arranged on the vehicles, the first power supply is respectively connected with the millimeter wave radar and the power supply conversion module, the power supply conversion module is connected with the laser radar, the upper computer is respectively in communication connection with the laser radar and the millimeter wave radar, data display software is arranged on the upper computer,
the first power supply is used for supplying power to the millimeter wave radar;
the power supply conversion module is used for converting the power supply output by the first power supply and supplying power to the laser radar;
the laser radar and the millimeter wave radar are used for acquiring angle, speed and position information of a target vehicle;
and the upper computer is used for displaying the angle, the speed and the position information of the target vehicle, which are acquired by the laser radar and the millimeter wave radar.
In some embodiments, the system further includes an onboard T-BOX,
and the laser radar is in communication connection with the upper computer through the vehicle-mounted T-BOX.
In some embodiments, the system further comprises a CAN bus,
the millimeter wave radar is in communication connection with the vehicle through the CAN bus.
In some embodiments, the system further comprises a universal serial bus,
the millimeter wave radar is in communication connection with the upper computer through the CAN bus to the universal serial bus.
In some embodiments, the upper computer is provided with a universal serial bus interface,
and the upper computer is in communication connection with the laser radar and the millimeter wave radar through the universal serial bus interface.
In some embodiments, the system further comprises a map device, the map device is in communication connection with the upper computer,
the map equipment is used for acquiring the position information of a target vehicle and sending the position information of the target to the upper computer.
The embodiment of the invention also provides a vehicle which comprises the calibration system aiming at the millimeter wave radar.
Compared with the prior art, the beneficial effects of the utility model are that: be different from prior art's condition, the embodiment of the utility model provides an in to millimeter wave radar calibration system and vehicle, including laser radar, millimeter wave radar, host computer, first power and power conversion module, laser radar the millimeter wave radar first power and power conversion module locates on the vehicle, first power respectively with millimeter wave radar with power conversion module connects, power conversion module with laser radar connects, the host computer respectively with laser radar with millimeter wave radar communication connection, be equipped with data display software on the host computer, first power is used for doing the millimeter wave radar power supply, power conversion module is used for right the power of first power output converts and gives the laser radar power supply, laser radar with millimeter wave radar is used for obtaining the angle of target vehicle, The upper computer is used for displaying the angle, the speed and the position information of the target vehicle, which are acquired by the laser radar and the millimeter wave radar, and determining the accuracy of the millimeter wave radar in detecting the target vehicle by comparing the difference between data by taking the laser radar as a calibration device, so that not only can the cost be saved, but also the calibration complexity can be reduced.
Drawings
Fig. 1 is a schematic diagram of the calibration system for millimeter wave radar according to the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, the present invention provides a calibration system for millimeter wave radar, which is applied to a vehicle, wherein the calibration system 1 for millimeter wave radar includes a laser radar 10, a millimeter wave radar 20, an upper computer 30, a first power source 40 and a power conversion module 50. The laser radar 10, the millimeter wave radar 20, the first power source 40 and the power conversion module 50 are all disposed on the vehicle, that is, the laser radar 10, the millimeter wave radar 20, the first power source 40 and the power conversion module 50 are mounted on the vehicle. In particular, the lidar 10 may be fixedly mounted at a rear bumper of the vehicle. The first power supply 40 is connected to the millimeter-wave radar 20 and the power conversion module 50, and specifically, the first power supply 40 is connected to the millimeter-wave radar 20 and the power conversion module 50 through power lines. The power conversion module 50 is connected to the laser radar 10, and specifically, the power conversion module 50 is connected to the laser radar 10 through the power line. Further, the upper computer 30 is in communication connection with the laser radar 10 and the millimeter wave radar 20, respectively.
The first power supply 40 is a vehicle-mounted power supply, for example, a 12V power supply, and the first power supply 40 is used for supplying power to the millimeter wave radar 20. The power conversion module 50 is any device having a power conversion function, such as a DC-DC converter, and the power conversion module 50 is configured to convert the power output by the first power source 40 and supply power to the laser radar 10. Specifically, the power conversion module 50 is configured to convert the first power source 40, i.e., the vehicle-mounted 12V power source, into a direct current power source to supply power to the laser radar.
The laser radar 10 and the millimeter wave radar 20 are configured to acquire angle, speed, and position information of a target vehicle, and send the acquired angle, speed, and position information of the target vehicle to the upper computer 30. It is understood that the information obtained by the lidar 10 and the millimeter wave radar 20 includes, but is not limited to, the angle, speed, and position information of the target vehicle, and may also include other environmental information.
The upper computer 30 may be a computer or a notebook computer, and the like, data display software is installed on the upper computer 30, and the upper computer 30 is configured to display data acquired by the laser radar 10 and the millimeter wave radar 20, that is, angle, speed, and position information of the target vehicle through the data display software. Specifically, the upper computer 30 displays the angle, the speed, and the position information of the target vehicle, which are acquired by the laser radar 10 and the millimeter wave radar 20, on the same interface, so that the detection performance of the millimeter wave radar 20 can be visually evaluated, and the parameter of the millimeter wave radar 20 is adjusted based on the parameter of the data acquired by the laser radar 10, thereby calibrating the millimeter wave radar 20. By using the laser radar as a calibration device and comparing the difference between data, the accuracy of the millimeter wave radar in detecting the target vehicle is determined, so that not only can the cost be saved, but also the calibration complexity can be reduced.
In some embodiments, at least two universal serial bus interfaces (not shown), i.e., USB ports, are disposed on the upper computer 30, and the upper computer 30 is respectively in communication connection with the laser radar 10 and the millimeter wave radar 20 through the universal serial bus interfaces.
In some embodiments, the system 1 further includes an onboard T-BOX60, the onboard T-BOX60 is mounted on the vehicle, and the lidar 10 is communicatively coupled to the host computer 30 via the onboard T-BOX 60. Specifically, the laser radar 10 is in communication connection with the vehicle-mounted T-BOX60 through a communication harness, and the vehicle-mounted T-BOX60 is in communication connection with the serial bus interface through the communication harness, so that the laser radar 10 is in communication connection with the upper computer 30.
In some embodiments, the system 1 further includes a CAN bus, and the vehicle is provided with a CAN bus interface, and the millimeter wave radar 20 is connected to the CAN bus interface through the CAN bus, so that the millimeter wave radar 20 is communicatively connected to the vehicle.
In some embodiments, the system 1 further includes a universal serial bus, and since the upper computer 30 is not provided with a CAN bus interface, the millimeter wave radar 20 needs to be converted when communicating with the upper computer 30. Specifically, the millimeter wave radar 20 is in communication connection with the upper computer 30 through the CAN bus to the universal serial bus.
In some other embodiments, in order to make the calibration of the millimeter wave radar more accurate, the system 1 further includes a map device (not shown), which may be, for example, a high-precision map device, the map device is disposed on the vehicle, and the map device is in communication with the upper computer, specifically, the map device is in communication with the upper computer through the vehicle-mounted T-BOX. The map equipment is connected with the power supply conversion module, and the power supply conversion module is used for converting the power supply output by the first power supply and supplying power to the map equipment. The map equipment is used for acquiring the position information of a target vehicle, then the position information is sent to the upper computer through the vehicle-mounted T-BOX to be displayed, and the angle, the speed and the position information acquired by the laser radar are combined with the position information acquired by the map equipment to calibrate the millimeter wave radar, so that the calibration is more accurate.
It is understood that, in some other embodiments, a chip for acquiring an angle and a speed may be integrated on the map device, so that the map device may acquire not only the position information of the target vehicle, but also the angle and speed information of the target vehicle.
The utility model provides a calibration system 1 to millimeter wave radar can be applied to various vehicles, for example bus, car etc.. In practical application, the system can be directly installed in a vehicle.
It should be noted that the preferred embodiments of the present invention are described in the specification and the drawings, but the present invention can be realized in many different forms, and is not limited to the embodiments described in the specification, and these embodiments are not provided as additional limitations to the present invention, and are provided for the purpose of making the understanding of the disclosure of the present invention more thorough and complete. Moreover, the above features are combined with each other to form various embodiments not listed above, and all of them are considered as the scope of the present invention described in the specification; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A calibration system for a millimeter wave radar is applied to a vehicle and is characterized by comprising a laser radar, a millimeter wave radar, an upper computer, a first power supply and a power supply conversion module, wherein the laser radar, the millimeter wave radar, the first power supply and the power supply conversion module are arranged on the vehicle, the first power supply is respectively connected with the millimeter wave radar and the power supply conversion module, the power supply conversion module is connected with the laser radar, the upper computer is respectively in communication connection with the laser radar and the millimeter wave radar, data display software is arranged on the upper computer,
the first power supply is used for supplying power to the millimeter wave radar;
the power supply conversion module is used for converting the power supply output by the first power supply and supplying power to the laser radar;
the laser radar and the millimeter wave radar are used for acquiring angle, speed and position information of a target vehicle;
and the upper computer is used for displaying the angle, the speed and the position information of the target vehicle, which are acquired by the laser radar and the millimeter wave radar.
2. The system of claim 1, further comprising an onboard T-BOX,
and the laser radar is in communication connection with the upper computer through the vehicle-mounted T-BOX.
3. The system of claim 1, further comprising a CAN bus,
the millimeter wave radar is in communication connection with the vehicle through the CAN bus.
4. The system of claim 3, further comprising a universal serial bus,
the millimeter wave radar is in communication connection with the upper computer through the CAN bus to the universal serial bus.
5. The system of claim 1, wherein the upper computer is provided with a universal serial bus interface,
and the upper computer is in communication connection with the laser radar and the millimeter wave radar through the universal serial bus interface.
6. The system according to any one of claims 1-5, further comprising a map device, wherein the map device is communicatively connected to the upper computer,
the map equipment is used for acquiring the position information of a target vehicle and sending the position information of the target to the upper computer.
7. A vehicle comprising a calibration system for millimeter wave radar according to any one of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023170782.3U CN214954053U (en) | 2020-12-24 | 2020-12-24 | Calibration system for millimeter wave radar and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023170782.3U CN214954053U (en) | 2020-12-24 | 2020-12-24 | Calibration system for millimeter wave radar and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117129975A (en) * | 2023-08-14 | 2023-11-28 | 深圳承泰科技有限公司 | Automatic radar alarm test method and system based on laser radar true value |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117129975A (en) * | 2023-08-14 | 2023-11-28 | 深圳承泰科技有限公司 | Automatic radar alarm test method and system based on laser radar true value |
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