Rear-end collision prevention warning system and method based on braking habit of front vehicle driver

Abstract

The invention relates to a rear-end collision prevention early warning system and a method based on the braking habit of a front vehicle driver. The system consists of self-driving system and back-driving system. The self-driving system consists of sensor module, information acquisition unit, driving habit analysis unit, safe vehicle distance real-time calculation unit, early warning and remindingunit and vehicle networking communication unit. The sensor module consists of laser radar sensor and brake switch. The rear vehicle system is composed of an early warning reminder unit, an information processing unit, an information display unit and a vehicle networking communication unit. The information display unit is directly connected to the serial port 1 of the processor, and the vehicle networking communication module is directly connected to the serial port 2 of the processor. The method comprises the following steps: real-time recording the information of the vehicle speed, the engine speed, the brake switch state and the accelerator pedal stroke; After calculating the real-time driving speed v of the rear car; Real-time Calculation of Theoretical Safety Distance between Self-propelled Vehicle and Rear Vehicle; Warn from the vehicle to the rear. The invention can reduce the probability of rear-end collision accident.

Description

technical field [0001] The invention relates to the field of automobile collision early warning control methods, in particular to an anti-rear collision early warning system and method based on the braking habit of the driver of the preceding vehicle. Background technique [0002] Automobile rear-end collision accident is a kind of traffic accident with very high incidence rate and proportion. When the car is running, the own car (the front car) will inevitably brake due to encountering obstacles or other unexpected situations, so a certain braking safety distance must be maintained between the rear car and the own car, otherwise it will easily happen Rear-end traffic accidents bring losses to both car owners. [0003] At present, the existing warning method on the car is that after the driver of the car steps on the brake pedal and the brake light at the rear of the car lights up, the car behind will be warned. The driver of the rear car judges whether the own car has tak...

AI Technical Summary

Problems solved by technology

The driver of the rear car judges whether the own car has taken braking measures according to whether the brake light of the own car is on or not, but cannot know the braking intensity of the driver of the own car, and if the driver of the own car does not step on the brake pedal and only relies on the engine braking Slow down by moving, the brake light will not be lit, and it is difficult for the driver behind to find out that the car is braking in time

[0004] In addition, the driver of the rear vehicle only relies on the naked eye and experience to judge the safe distance from the vehicle when braking, which may easily cause a time lag and a large error in judging the distance, which may easily lead to accidents

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