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77GHz millimeter wave corner false-alarm inhibiting system for automobile active anticollision radar

An anti-collision radar and millimeter wave technology, applied in signal devices and other directions, can solve the problems of no cost and high technology level, and achieve the effects of reducing measurement time, reducing false alarm probability, and reducing radar size

Inactive Publication Date: 2012-05-02
BEIJING INSTITUTE OF TECHNOLOGYGY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitations of radio frequency technology, high-efficiency and fast digital algorithms, so far, there is no 77GHz automotive anti-collision radar product that is completely suitable for cost, has a high level of technology, and has a stable system.

Method used

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  • 77GHz millimeter wave corner false-alarm inhibiting system for automobile active anticollision radar
  • 77GHz millimeter wave corner false-alarm inhibiting system for automobile active anticollision radar
  • 77GHz millimeter wave corner false-alarm inhibiting system for automobile active anticollision radar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] When the car is in the driving state, the car anti-collision radar detects the target information in front of the car, the GPS receiver obtains the current position information of the car, the geographic information library module provides the geographic information of the current position, and the information comprehensive processing module comprehensively analyzes these information, And the analysis results are displayed graphically on the integrated display.

[0037] In the present embodiment, when the automobile is approaching or traveling on a curve, the integrated information processing module judges that the automobile is approaching or traveling on a curve by synthesizing the information of the GPS receiver and the information of the geographic information library module, and the integrated display The screen provides prompt information to the driver; at the same time, the comprehensive information processing module processes the target information detected by th...

Embodiment 2

[0039] When the car is in a normal driving state, the 77GHz millimeter-wave automotive anti-collision radar detects the target in front, the working distance is 150m, the azimuth angle of the radar beam is 12°, and the pitch angle is 3°. When an obstacle appears within the detection range of the vehicle anti-collision radar, the radar calculates the distance, speed and azimuth of the obstacle relative to the vehicle, and transmits the calculated data to the integrated information processing module; the GPS receiver uses With a refresh rate of 1s, the latitude and longitude data where the car is located is transmitted to the comprehensive information processing module; the comprehensive information processing module extracts geographic information with a radius of 500m centered on the car from the geographic information library module through the acquired latitude and longitude information; the comprehensive information processing module The data transmitted by the vehicle anti-...

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Abstract

The invention relates to a 77GHz millimeter wave corner false-alarm inhibiting system for an automobile active anticollision radar, which belongs to the technical field of radar communication and automobile electron. The system concretely comprises a GPS (Global Positioning System) receiver, an automobile anticollision radar, a geographic information library module, an information comprehensive processing module and a comprehensive display screen, wherein the information processing module is used for carrying out analysis and judgment on data information derived from the GPS receiver, the geographic information library module and the automobile anticollision radar, confirming whether an automobile is close to a corner or is run in the corner or not, obtaining the position information of a potential threatened object and sending an alarm. The 77GHz millimeter wave corner false-alarm inhibiting system for the automobile active anticollision radar has the system working frequency of 77GHz frequency range, small radar size and low false-alarm probability; and an automobile anticollision radar detects or monitors a close object of the turning position and displays the close object on the comprehensive display screen, thereby effectively preventing the automobile from knocking down the object behind the corner.

Description

technical field [0001] The invention relates to a 77GHz millimeter-wave automobile active anti-collision radar curve false alarm suppression system, which belongs to the technical field of radar communication and automobile electronics. Background technique [0002] Automobile active collision avoidance radar can detect vehicles and objects in front of the car, providing guarantee for the safe driving of the car and even the automatic driving of the car. However, the active anti-collision radar of the car can only detect the objects directly in front of the car when it is in use. figure 1 As shown in , the target in front of the radar in the outer area of ​​the road will be considered as a threat to the car, and an alarm will be generated, which may cause the driver to make a wrong operation. [0003] 77GHz millimeter-wave radar Automotive millimeter-wave radar in the 77GHz frequency band is currently a research hotspot in various countries, because the increase in frequenc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60Q9/00B60W40/02
Inventor 卢继华安建平张军卜祥元田黎育李安培邵立伟郑晨姚若晨
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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