Networked vehicle cooperative collision avoidance early warning system and method in non-signal-control intersection environment

Abstract

The invention discloses a networked vehicle cooperative collision avoidance early warning system and method in a signal-control-free intersection environment, and the system obtains the information of vehicles in a radiation range and a vertical lane thereof through a vehicle-to-vehicle communication technology, shares the information of the vehicles, and takes the time when the vehicles arrive at an intersection at the same time as the vehicle-to-vehicle pre-judgment information. If the absolute value of the time difference of the two vehicles arriving at the same intersection is smaller than a set threshold value, and the ratio of the distance between the vehicles and the intersection to the calculated safe distance is smaller than 1.6, the man-machine interaction module gives an early warning to a driver. According to the invention, other vehicles in the surrounding environment can be sensed, so that whether collision occurs can be judged according to the driving state. A driver can take corresponding measures according to the prompt of the collision avoidance early warning system so as to avoid collision, the cooperative intersection collision early warning realized by using the vehicle-vehicle communication technology can effectively reduce the occurrence of collision accidents at the non-signal-control intersection, and the road traffic safety is improved.

Description

technical field [0001] The invention relates to the field of road traffic safety, in particular to a collaborative collision avoidance warning system and method for networked vehicles in an unsigned-controlled intersection environment. Background technique [0002] As an important pillar of the national economy, transportation is of great significance to the development of the country. With the increase of car ownership, the problem of traffic safety has become increasingly prominent. The intelligentization and networking of automobiles has become the development focus of the global automobile industry, and the development of intelligent networked vehicles is considered to be the best way to solve traffic safety problems. [0003] As the gathering place of traffic flow, unsignal-controlled intersection is a frequently-occurring area of ​​traffic accidents. Among them, vertical meeting of cars at intersections is one of the traffic scenes most likely to cause traffic accide...

AI Technical Summary

Problems solved by technology

Among them, vertical meeting of cars at intersections is one of the traffic scenes most likely to cause traffic accidents in daily driving. Traditional sensor-based anti-collision warning technology is mostly used for collisions between front and rear vehicles when two vehicles are very close to each other. The detection range is limited, and it may Due to the occlusion of buildings or surrounding objects, vehicles in blind spots at intersections cannot be detected, and information sharing between vehicles cannot be realized.

It is easy to cause false positives and false negatives of early warning, which increases the risk of intersection collision

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