Method for warning vehicle deviation and estimating driver state

Abstract

The invention provides a method for warning vehicle deviation and estimating driver state. The method includes: establishing a drive state model including a relation among driver mental state, a vehicle movement path and vehicle speed, capturing the speed of a vehicle, vehicle body signals of a direction light and the like and a lane center deviation; utilizing a processor to judge whether the speed of the vehicle exceeds a preset speed or not, whether the direction light is turned on or not, whether the vehicle is on a lane line or not and the like, and if so, recapturing the vehicle body signals and the lane center deviation; otherwise, comparing with a driver state model in a database by the processor according to the lane center deviation and at least one deviation speed, and estimating the mental state of a driver.

Description

technical field [0001] The invention relates to a technology for judging the state of the driver, in particular to a method for warning the vehicle to deviate and estimating the state of the driver. Background technique [0002] With the advancement of technology and affluent life, the penetration rate of vehicles in households has increased significantly. However, with the frequent use of vehicles, traffic accidents have also increased. Among them, traffic accidents caused by poor mental state of the driver accounted for more Most of them, such as fatigue driving or drunk driving, etc., when the mental state is not good, the driver cannot turn the steering wheel in real time when turning, and even straight roads may cause the vehicle to deviate due to the loose steering wheel. [0003] There is a lane departure warning system in the current technology, which can detect whether the vehicle is driving in the middle of the lane, and if the vehicle deviates from the middle of t...

AI Technical Summary

Problems solved by technology

[0002] With the advancement of technology and affluent life, the penetration rate of vehicles in households has increased significantly. However, with the frequent use of vehicles, traffic accidents have also increased. Among them, traffic accidents caused by poor mental state of the driver accounted for more Most of them, such as fatigue driving or drunk driving, etc., when the mental state is not good, the driver cannot turn the steering wheel in real time when turning, and even straight roads may cause the vehicle to deviate due to the loosening of the steering wheel

[0003] There is a lane departure warning system in the current technology, which can detect whether the vehicle is driving in the middle of the lane, and if the vehicle deviates from the middle of the road, a warning message will be issued. The lane departure warning system will remind the driver that the vehicle has drifted, but it will cause the driver to rely too much on this system, so the driver is often tired or inattentive driving, or even get used to the warning sound and easily ignore it, which will increase the danger

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