Dangerous-overtaking early-warning prompting method and system

Abstract

The invention relates to a dangerous-overtaking early-warning prompting method. The dangerous-overtaking early-warning prompting method comprises the steps that (1) the states of vehicles in front of a vehicle and behind the vehicle are detected, and the state of the vehicle is judged; (2) when the vehicle is in a vehicle following stage, whether a left lane and the position in front of a lathe where the vehicle is located are safe or not is judged, if the lanes are safe, the prompt that safe overtaking can be carried out is given to a driver of the vehicle, and if the lanes are dangerous, the prompt that overtaking cannot be carried out is given to the driver of the vehicle; (3) when the vehicle is in an overtaking state, whether the side direction, the front portion and the rear portion of the vehicle are safe or not is judged, if the positions are safe, the prompt that safe driving can be carried out is given to the driver, and if the positions are dangerous, an alarm is given out; (4) when the vehicle is in a stage that the vehicle will return, whether the lathe where the vehicle is originally located is safe or not is judged, if the lathe is safe, the prompt that safe return can be carried out is given to the driver, and if the lathe is dangerous, the prompt that return cannot be carried out is given to the driver. The invention further discloses a dangerous-overtaking early-warning prompting system. According to the dangerous-overtaking early-warning prompting method and system, real-time detection and prediction can be carried out on the motion state of the vehicle and the motion states of the surrounding vehicles, the alarm can be given to the driver under the condition that dangers and potential dangers exist, traffic accidents are effectively prevented from happening, and the driver can be prompted whether safe overtaking or safe return to the original lathe can be carried out or not under the condition that the potential dangers do not exist.

Description

technical field [0001] The invention relates to the technical field of automobile active safety, in particular to a dangerous overtaking early warning prompting method and system. Background technique [0002] With the increase of car ownership, the occurrence of traffic accidents is also increasing. According to statistics, accidents caused by improper overtaking accounted for 15% of the total number of accidents. Most of these overtaking accidents are due to the rear-end and side collisions caused by the driver's improper estimation of the overtaking sight distance. Therefore, it is necessary to design an overtaking early warning system, not only to give the driver a warning when there is a potential danger in the process of overtaking, so that the driver can make timely adjustments, but also to remind the driver in real time whether to start overtaking and whether to Can return to the original lane. [0003] The application number is 201310005732.5, and the invention p...

AI Technical Summary

Problems solved by technology

[0003] The application number is 201310005732.5, and the invention patent titled "an overtaking early warning control system and control method" uses the fuzzy calculation of the longitudinal distance between the vehicle and the right front vehicle, the status of the steering switch and the amount of external ambient light. Under certain circumstances, flashing far and low beams, honking the horn and other behaviors of the vehicle in front can effectively remind the vehicle in front to avoid the occurrence of traffic accidents. Tracking and detection, did not conduct a comprehensive detection and evaluation of the environment around the lane, and did not take into account the problem of side collisions during overtaking

The application number is 00101549.4, and the invention patent named "Automobile Anti-Collision Alarm Device on Expressway" can accurately display the number of

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