Vehicle collision warning method and device

Abstract

The invention provides a vehicle collision warning method and device. The method comprises the steps that the current position and the current motion state information of a vehicle and an adjacent vehicle are acquired in real time; according to the current position and the current motion state information of the vehicle and the adjacent vehicle, the first driving trajectory of the vehicle and thesecond driving trajectory of the adjacent vehicle during a preset time period are predicted; whether the first driving trajectory and the second driving trajectory intersect is determined; if the first driving trajectory intersects with the second driving trajectory, the time for the vehicle and the adjacent vehicle to come from the current position to the intersection of the first driving trajectory and the second driving trajectory is calculated to acquire a corresponding first time and second time; and if the absolute value of the difference between the first time and the second time is less than a threshold time, an alarm message is issued. According to the scheme, the real-time performance of collision prediction can be improved, and the safety of driving is improved.

Description

technical field [0001] The invention relates to the technical field of automobile safety, in particular to a vehicle collision early warning method and device. Background technique [0002] With the continuous increase in the use of automobiles, the safety of automobiles has been paid more and more attention, and the vehicle collision warning has attracted much attention. In practical applications, reasons such as the driver’s blind spot, inattention, or bad weather and environment may become the danger of vehicle collision. Therefore, it is necessary to give the driver a timely warning prompt to assist the driver to take corrections Measures to prevent vehicle collisions. [0003] The vehicle collision warning in the prior art is mainly based on the motion state of the vehicle and the distance between the vehicle and other vehicles to predict whether it will collide. The real-time prediction is low, which makes the driving safety low. Contents of the invention [0004] ...

AI Technical Summary

Problems solved by technology

[0003] The vehicle collision warning in the prior art is mainly based on the sensor to obtain the motion state of the vehicle and the distance from other vehicles to predict whether it will collide. The real-time prediction is low, which makes the driving safety low.

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