Anti-collision method and system under different vehicle conditions

Abstract

The invention discloses an anti-collision method and system under different vehicle conditions, and belongs to the technical field of vehicle safety. The method includes the steps that the vehicle conditions are judged according to the vehicle speed and the corresponding safety distance, and the trajectory calculation quantity, the trajectory computing cycle, and the information sending cycle are determined according to the different vehicle conditions, vehicle trajectories are calculated according to the trajectory calculation quantity, the trajectory computing cycle and vehicle running states, the vehicle trajectories are periodically broadcast, anti-collision detection is conducted through the comparison between the vehicle trajectory of one vehicle and the vehicle trajectories of other vehicles, and if it is detected that a collision possible occurs, an early warning signal is output. The anti-collision method and system under the different vehicle conditions can achieve distinguishing of different risk levels of the vehicles through a vehicle condition determination strategy, targeted anti-collision warming for dangerous vehicles can be conducted, information transmission amount can be reduced through scattering the trajectory calculation to each vehicle, the decision making early warning speed test is improved, the occurrence of the vehicle collision is effectively prevented, and traffic accidents are reduced.

Description

technical field [0001] The invention relates to the fields of computers and communications, in particular to a collision avoidance method and system under different vehicle conditions. Background technique [0002] Our country is a country with frequent traffic accidents. The occurrence of traffic accidents will cause huge personal casualties and property losses every year. How to realize the prediction, early warning and effective prevention of traffic accidents has always been a focus of research on related issues. With the continuous development of communication and mapping technology, on the one hand, based on the existing Beidou satellite navigation system, accurate and real-time acquisition of vehicle-related information has become possible; on the other hand, with DSRC (Dedicated Short Range Communications) ), the information interaction between vehicles becomes faster and more convenient. Coupled with the gradual formation of the Internet of Vehicles based on the tw...

AI Technical Summary

Problems solved by technology

Although the transmission and acquisition of information can be fast and accurate, it cannot be timely, targeted and effective

First of all, vehicle safety information does not have the distinction of risk levels, which will lead to the failure of timely delivery of vehicle information that is most likely to cause collisions or safety accidents, delaying early warning of accidents

Secondly, the frequency, content and method of sending and receiving vehicle information under different vehicle conditions cannot be differentiated, making vehicle collision avoidance warnings untargeted

Finally, by sending and receiving information such as relative vehicle distance, vehicle speed and direction to obtain the determination of vehicle collisions and traffic accidents, the amount of calculation is large and not effective enough, and it cannot provide the driver with the most effective and correct decision at the fastest speed. information needed for decision making

Based on the above three points, the existing vehicle anti-collision methods or devices are still unable to achieve real-time, targeted and effective assistance and support for vehicle anti-collision and traffic accident prevention.

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