Lane-keeping assistance method and system based on dead zone monitoring

Abstract

The invention relates to the field of automobile control safety, in particular to a lane-keeping assistance method and system based on dead zone monitoring. Alarm threshold values of a vehicle are set, wherein the alarm threshold values include a low alarm threshold value and a high alarm threshold value; traffic information behind the back of the vehicle is acquired, and when the traffic information behind the back of the vehicle indicates that other vehicles behind the back of the vehicle are driven into at high speed, the alarm threshold value of the vehicle is adjusted to the low alarm threshold value; when the traffic information behind the back of the vehicle indicates that no vehicle behind the back of the vehicle is driven into at high speed, the alarm threshold value of the vehicle is adjusted to the high alarm threshold value; a lane deviation state is calculated according to acquired real-time road information, and when the calculated lane deviation state is greater than thecorresponding alarm threshold value, an alarm signal is output. The safety of the vehicle is improved, and the complaints by drivers about frequent alarming are also avoided. The transformation costis lower only by adding a corresponding software module in an existing control unit.

Description

technical field [0001] The invention relates to the field of vehicle control safety, in particular to a lane keeping assist method and system based on blind spot monitoring. Background technique [0002] With the development of advanced driver assistance system (ADAS) technology, more and more models are equipped with active safety functions such as lane keeping. The current lane keeping function only recognizes the front lane line through the front camera, and judges whether to issue an alarm and active control intervention to the vehicle based on the time when the vehicle touches the lane line and the distance between the edge of the vehicle and the lane line. The actual traffic scene is very complex, and most of the existing lane keeping functions only consider the situation in the current lane. When vehicles in adjacent lanes enter from the rear at different speeds, if the lane keeping function fails to call the police and intervene in time at this time, the probability...

AI Technical Summary

Problems solved by technology

If the threshold is set too low, the driver will frequently trigger the alarm or even the intervention function when using this function. On the one hand, it will cause the driver to complain about the system, and on the other hand, it will cause the driver to distrust the system.

On the contrary, if the threshold is set too high, the early warning and intervention functions will be triggered too late, and the driver may not have time to react, so that traffic safety accidents cannot be effectively avoided

[0004] Therefore, the existing lane keeping system is still unable to achieve a balance between avoiding the driver's complaints and avoiding the occurrence of traffic safety accidents, and its customer experience effect is poor

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