Vehicle anti-collision routing method based on VANETs

Abstract

The invention relates to a vehicle anti-collision routing method based on VANETs. The method comprises the following steps of classifying according to the driving state of a vehicle and a traffic signal state, and determining a possible collision set through comparing the time when the vehicle arrives at an intersection with the remaining time of traffic light; under the determined collision set,preferentially selecting a next hop vehicle according to the driving state function among the vehicles to obtain collision set driving information; and calculating a vehicle collision time differenceaccording to the vehicle driving information and the collision set driving information, using the collision time difference to determine whether there is a collision risk among the vehicles, and if there is the collision risk, emitting early warning information. In the invention, the vehicle collision risk can be perceived in advance and guarantee is provided for a driver to adopt safety measures.

Description

technical field [0001] The invention relates to the technical field of vehicle anti-collision, in particular to a vehicle anti-collision routing method based on VANETs. Background technique [0002] With the development of the economy and the continuous improvement of personal living standards, the continuous increase in the number of cars has made the urban traffic situation worse and worse, which has brought many traffic accidents, especially vehicle collisions. The reason is mostly due to driver fatigue. In addition, there is a more important reason that the vehicle cannot perceive the existence of danger in advance and send an early warning to the driver, so that the driver cannot take early warning. risk measures. Therefore, using vehicle ad hoc network routing technology to obtain vehicle information and perceive the existence of collision danger provides a reliable basis for vehicle collision warning, which has become the focus of vehicle anti-collision research at t...

AI Technical Summary

Problems solved by technology

[0002] With the development of the economy and the continuous improvement of personal living standards, the continuous increase in the number of cars has made the urban traffic situation worse and worse, which has brought many traffic accidents, especially vehicle collision accidents. Most of the reasons are due to driver fatigue. In addition, there is a more important reason that the vehicle cannot perceive the existence of danger in advance and issue an early warning to the driver, so that the driver cannot take early warning. risky measures

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