Vehicle collision preventing method and device

Abstract

The invention provides a vehicle collision preventing method and device. The method comprises the following steps: first relative distances and first relative speeds of vehicles relative to front obstacles detected by a millimeter wave radar, second relative distances and second relative speeds detected by a laser distance measurer and real-time speeds of the vehicles detected by a vehicle speed measurer are received; if the first relative distances are larger than a preset distance threshold, and the first relative speeds are higher than zero, first prewarning instructions are generated according to the first relative distances, the first relative speeds and the real-time vehicle speeds for prewarning of vehicle drivers; if the first relative distances are not larger than the preset distance threshold, and the first relative speeds are higher than zero, smaller values of the first relative distances and the second relative distances are obtained, and second prewarning instructions aregenerated according to the smaller values, the first relative speeds and the real-time vehicle speeds for prewarning of the vehicle drivers. The vehicle collision preventing method and device can effectively reduce the vehicle collision probability, and improve the collision preventing efficiency.

Description

technical field [0001] The present invention relates to the technical field of vehicle safety driving, in particular to a vehicle collision avoidance method and device. Background technique [0002] With the rapid development of my country's economy, vehicles have become the main means of transportation for family travel. The continuous increase in the number of family vehicles has given birth to a large number of novices who lack driving experience, making it easy to cause traffic accidents such as collisions between vehicles and vehicles in front after the vehicle in front decelerates during driving. [0003] At present, during the driving process, the millimeter-wave radar installed on the vehicle is mainly used to avoid collision with the vehicle in front. When the millimeter-wave radar detects that the distance between the vehicle and the vehicle in front is less than the preset safety distance threshold, it determines that there is a collision. Danger, alerting the dr...

AI Technical Summary

Problems solved by technology

[0004] However, in this vehicle collision avoidance method, the millimeter-wave radar performs collision avoidance alarms based on the distance between the vehicle and the vehicle in front. The relative distance detection accuracy of the distance is low, which leads to poor collision avoidance efficiency and cannot effectively reduce vehicle collisions

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