Vehicle Active Collision Avoidance Warning System Based on Millimeter Wave Radar

Abstract

The invention discloses an automobile active anti-collision early warning system based on millimeter-wave radars. The automobile active anti-collision early warning system mainly comprises a signal acquiring and processing module I, an automobile information acquiring module II, a judgment recognition module III, a man-machine interaction module IV and an execution system module V. The signal acquiring and processing module I utilizes the millimeter-wave radars I-1 to obtain the speed, a distance and an azimuth angle of a target X relative to an automobile Z and outputs the information processed by a processor I-2. The automobile information acquiring module II utilizes an ABS wheel speed sensor II-1 to obtain the automobile speed and road adhesion coefficient of the automobile Z and outputs the information processed by an auxiliary II-2. The judgment recognition module III judges the type of the target X, transmits the target type to the man-machine interaction module IV and transmits a control strategy to the execution system module V. By taking corresponding avoidance control measures, the automobile active anti-collision early warning system can remind a drive to take the measures so as to ensure safe and comfortable driving in advance of enough time, effectively recognize a dangerous target, remind the driver and improve the system safety.

Description

technical field [0001] The invention relates to the technical field of automobile active safety, in particular to an automobile active anti-collision warning system based on millimeter wave radar. Background technique [0002] With the continuous development of world economy and technology, the automobile industry has developed rapidly since its birth in the late nineteenth century. However, traffic accidents have always been a disadvantage brought about by the development of automobiles. In recent years, the number of traffic accidents and occupant casualties has been high, and it has become one of the important causes of global diseases or accidental deaths. Therefore, traffic safety issues have become a global urgent need. The main problem solved. By analyzing the causes of a large number of traffic accidents, it is concluded that there are mainly three aspects: driver factor, vehicle factor and environmental factor, especially the driver factor is the most prominent. F...

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Problems solved by technology

[0004] At present, the focus of the vehicle active collision avoidance warning system is still on how to identify the moving state information of the target, while ignoring the establishment of the safe vehicle distance model and control strategy, or uniformly establishing the safe vehicle distance model and control strategy, thus reducing the reliability of the system. sex

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