Multi-radar coordination device in ADAS system and coordination method thereof

A multi-radar and radar technology, applied in measurement devices, radio wave measurement systems, radio wave reflection/re-radiation, etc. Effect

Pending Publication Date: 2019-01-29
芜湖易来达雷达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to functional requirements, the number of radars configured on a vehicle can be as many as 5 or more. How to make full use of the advantages of multiple radars is a very difficult task. Through the cooperation of multiple radars, more abundant data can be obtained. The information is more effective than multiple radars working independently. In the existing technology, the cooperation method of multiple radars still stays at the surface data synthesis, rather than the data transmission cooperation under the same timeline. Narrowness

Method used

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  • Multi-radar coordination device in ADAS system and coordination method thereof

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Experimental program
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Effect test

Embodiment 1

[0024] Such as figure 1 As shown, the multi-radar cooperative device in the ADAS system includes several radars 1, and also includes:

[0025] Clock synchronization line 2, used to connect several radars 1 and transmit the reference clock signal of radars 1;

[0026] The data bus 4 is used for interconnecting several radars 1 on the basis of the clock synchronization line 2 and exchanging data information detected by the several radars 1 .

[0027] The two radars 1 on the left front and the right front of the vehicle through the clock synchronization line 2 are equivalent to extending the length of the measurement baseline, can work in a space diversity mode, and can improve the measurement quality.

[0028] Through a high-speed bus or a dedicated cable, a clock synchronization line 2 and a data bus 4 are established between multiple radars 1. The clock synchronization line 2 can ensure that multiple radars 1 work under the same clock source, thereby ensuring the transmission...

Embodiment 2

[0043] Such as figure 1 As shown, the multi-radar cooperative device in the ADAS system includes several radars 1, and also includes:

[0044] Clock synchronization line 2, used to connect several radars 1 and transmit the reference clock signal of radars 1;

[0045] The data bus 4 is used for interconnecting several radars 1 on the basis of the clock synchronization line 2 and exchanging data information detected by the several radars 1 .

[0046] The two radars 1 on the left front and the right front of the vehicle through the clock synchronization line 2 are equivalent to extending the length of the measurement baseline, can work in a space diversity mode, and can improve the measurement quality.

[0047] Through a high-speed bus or a dedicated cable, a clock synchronization line 2 and a data bus 4 are established between multiple radars 1. The clock synchronization line 2 can ensure that multiple radars 1 work under the same clock source, thereby ensuring the transmission...

Embodiment 3

[0062] Such as figure 1 As shown, the multi-radar cooperative device in the ADAS system includes several radars 1, and also includes:

[0063] Clock synchronization line 2, used to connect several radars 1 and transmit the reference clock signal of radars 1;

[0064] The data bus 4 is used for interconnecting several radars 1 on the basis of the clock synchronization line 2 and exchanging data information detected by the several radars 1 .

[0065] The two radars 1 on the left front and the right front of the vehicle through the clock synchronization line 2 are equivalent to extending the length of the measurement baseline, can work in a space diversity mode, and can improve the measurement quality.

[0066] Through a high-speed bus or a dedicated cable, a clock synchronization line 2 and a data bus 4 are established between multiple radars 1. The clock synchronization line 2 can ensure that multiple radars 1 work under the same clock source, thereby ensuring the transmission...

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Abstract

The invention relates to the vehicle millimeter-wave radar field, and specifically relates to a multi-radar coordination device in ADAS system and a coordination method thereof; the coordination device comprises the following parts: a plurality of radars; a clock synchronization line used for connecting the plurality of radars and transmitting radar reference clock signals; a data bus used for realizing mutual connection of the plurality of radars on the basis of the clock synchronization line and mutual exchange of the data information detected by the radars. The clock synchronization line and the data bus are arranged between the radars via the high speed bus or a special cable; the clock synchronization line can ensure the radars to work under the same clock source, thus ensuring transmitting signals of the radars are coherent, and providing the multi-radar coordination work basis; the data bus provides a channel for the radars to mutually exchange data, thus ensuring the radar detection results to mutually fuse, increasing the target finding speed, and improving the measuring precision and reliability.

Description

technical field [0001] The invention relates to the field of millimeter-wave radar for vehicles, in particular to a multi-radar cooperation device and a cooperation method thereof in an ADAS system. Background technique [0002] With the development of assisted driving and automatic driving, more and more cars are equipped with millimeter-wave radar. As a sensor, the millimeter-wave radar is mainly used to detect obstacles in a certain area around the car body. The radar can detect the distance of the target, Velocity, angle, amplitude information. According to functional requirements, the number of radars configured on a vehicle can be as many as 5 or more. How to make full use of the advantages of multiple radars is a very difficult task. Through the cooperation of multiple radars, more abundant data can be obtained. The information is more effective than multiple radars working independently. In the existing technology, the cooperation method of multiple radars still sta...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G01S13/50G01S13/58G01S13/93
CPCG01S13/50G01S13/58G01S13/93
Inventor王征李铮钱永俊魏志强严鹏罗畅安
Owner芜湖易来达雷达科技有限公司