Collision early warning system and method based on driving state of second vehicle in front

Abstract

The invention discloses a collision early warning system and method based on the driving state of a second vehicle in front, the collision early warning system comprises a sensing layer, a decision-making layer and an execution layer, the output end of the sensing layer is connected with the input end of the decision-making layer, the output end of the decision-making layer is connected with the input end of the execution layer, a millimeter-wave radar and a GPS (Global Positioning System) data receiving and transmitting device are arranged in the sensing layer, an ECU (Electronic Control Unit) is arranged in the decision-making layer, and an electronic brake pedal and a voice prompt module are arranged in the execution layer, and the method comprises the following steps of: 1, arranging the GPS data receiving and transmitting device; 2, arranging a millimeter wave radar; 3, performing algorithm operation; and 4, enabling an executing mechanism to operate. The system and method have the beneficial effects that the occurrence of serial rear-end collision accidents of the main vehicle, the front vehicle and the like, which are easily caused by inattention of the front vehicle or untimely braking due to too small vehicle following distance, is avoided, and the safety of passengers and the road trafficability are improved.

Description

technical field [0001] The invention relates to a collision warning system and method, in particular to a collision warning system and method based on the driving state of the second vehicle ahead. Background technique [0002] At present, along with the development of the national economy, people's living standards are gradually improved, automobiles are widely popularized, and the traffic volume on the road is also increasing day by day. The ensuing traffic safety issues should also arouse our attention. According to the statistics of the traffic department, among all traffic accidents, the proportion of rear-end collision accidents is as high as 50%. It can be seen that preventing the occurrence of rear-end collision accidents is crucial to the life and property safety of the broad masses of the people. [0003] During daily driving, because the distance between the main vehicle and the vehicle in front is too close, or the vehicle in front changes lanes at will, or enc...

AI Technical Summary

Problems solved by technology

However, most of today's technical solutions are researched on the front car as the target vehicle, and less consideration is given to the driving status information of the second car in front, so that the prediction is not sufficient, and it is easy to cause serial rear-end collisions.

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