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ADAS self-adaption method of civil millimeter-wave radar coverage diagram

A millimeter-wave radar, adaptive technology, applied in the direction of reflection/re-radiation of radio waves, utilization of re-radiation, radio wave measurement system, etc. effect of distance

Pending Publication Date: 2019-03-15
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

A vehicle may be equipped with more than one safety assistance system. When considering the cost of materials, it is a development trend for a single radar to realize a multi-functional solution, but the design of a single radar cannot take into account all functional requirements.
On the basis of hardware conditions, the phase difference of the transmitting antenna is changed through software adjustment. Due to the existence of the phase difference, the signals in the overlapping area interfere with each other, resulting in the change of the radar power map. The change of the radar power map is difficult to communicate with ADAS in time. When the systems are used together, it is easy to cause data response errors, so it is necessary to adapt and cooperate in time

Method used

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  • ADAS self-adaption method of civil millimeter-wave radar coverage diagram
  • ADAS self-adaption method of civil millimeter-wave radar coverage diagram
  • ADAS self-adaption method of civil millimeter-wave radar coverage diagram

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as image 3 As shown, a civilian millimeter-wave radar power map adaptive ADAS method, the specific steps are as follows:

[0026] (1) Adjust the position of the transmitting antenna: adjust the transmitting phases of the two transmitting antennas of the 77GHz millimeter-wave radar 4 on the computer 1 according to the data;

[0027] (2) sending: connect computer 1 and 77GHz millimeter wave radar 4 through CAN communication tool 2 and send information in real time;

[0028] (3) initial scan: before step (1), use microwave anechoic chamber to install 77GHz millimeter-wave radar 4 on the stepper motor and carry out rotational scanning, obtain the initial pattern of 77GHz millimeter-wave radar 4;

[0029] (4) Re-scanning: after the emission phase is adjusted, the microwave anechoic chamber is used to rotate and scan again to obtain the pattern of the 77GHz millimeter-wave radar 4;

[0030] (5) Parameter adjustment: The pattern of all transmitting antennas has changed...

Embodiment 2

[0037] Such as Figure 4 As shown, a civilian millimeter-wave radar power map adaptive ADAS method, the specific steps are as follows:

[0038] (1) Adjust the position of the transmitting antenna: adjust the transmitting phases of the two transmitting antennas of the 77GHz millimeter-wave radar 4 on the computer 1 according to the data;

[0039] (2) sending: connect computer 1 and 77GHz millimeter wave radar 4 through CAN communication tool 2 and send information in real time;

[0040] (3) initial scan: before step (1), use microwave anechoic chamber to install 77GHz millimeter-wave radar 4 on the stepper motor and carry out rotational scanning, obtain the initial pattern of 77GHz millimeter-wave radar 4;

[0041] (4) Re-scanning: after the emission phase is adjusted, the microwave anechoic chamber is used to rotate and scan again to obtain the pattern of the 77GHz millimeter-wave radar 4;

[0042] (5) Parameter adjustment: The pattern of all transmitting antennas has change...

Embodiment 3

[0048] Such as Figure 5 As shown, a civilian millimeter-wave radar power map adaptive ADAS method, the specific steps are as follows:

[0049] (1) Adjust the position of the transmitting antenna: adjust the transmitting phases of the two transmitting antennas of the 77GHz millimeter-wave radar 4 on the computer 1 according to the data;

[0050] (2) sending: connect computer 1 and 77GHz millimeter wave radar 4 through CAN communication tool 2 and send information in real time;

[0051] (3) initial scan: before step (1), use microwave anechoic chamber to install 77GHz millimeter-wave radar 4 on the stepper motor and carry out rotational scanning, obtain the initial pattern of 77GHz millimeter-wave radar 4;

[0052] (4) Re-scanning: after the emission phase is adjusted, the microwave anechoic chamber is used to rotate and scan again to obtain the pattern of the 77GHz millimeter-wave radar 4;

[0053] (5) Parameter adjustment: The pattern of all transmitting antennas has change...

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Abstract

The invention relates to the field of application of civil millimeter-wave radar in ADAS, in particular to an ADAS self-adaption method of a civil millimeter-wave radar coverage diagram. The ADAS self-adaption method comprises the following specific steps of 1 adjustment of transmitting antenna position, 2 transmitting, 3 initial scanning, 4 scanning again, 5 parameter adjustment. When the methodis applied to an ADAS system, at least two transmitting antennas are opened and the phases of the antennas are adjusted to obtain different radar coverage diagrams. According to application scenarios,appropriate phase configurations are selected to dynamically adjust the radar coverage diagrams and increase detection distances.

Description

technical field [0001] The invention relates to the application of civilian millimeter-wave radar in the field of ADAS, in particular to a method for adaptive ADAS of civilian millimeter-wave radar power map. Background technique [0002] With the development of intelligent driving, ADAS systems are becoming more and more popular in cars. A vehicle may be equipped with more than one safety assistance system. When considering the cost of materials, it is a development trend for a single radar to realize a multi-functional solution, but the design of a single radar cannot take into account all functional requirements. On the basis of hardware conditions, the phase difference of the transmitting antenna is changed through software adjustment. Due to the existence of the phase difference, the signals in the overlapping area interfere with each other, resulting in the change of the radar power map. The change of the radar power map is difficult to communicate with ADAS in time. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/93
CPCG01S13/931
Inventor 王征李铮阚永葭桑泽遥杨路路罗畅安
Owner 芜湖易来达雷达科技有限公司