Forward vehicle attitude observing device and method thereof

Abstract

The invention discloses a forward vehicle attitude observing device and method thereof. Road information is obtained by a vision sensor mounted in a vehicle; the obtained road information is processedby a data processing unit, a lane line fitting curve and front vehicle front wheel touch point coordinate position pfc are obtained; the driving state of the front vehicle is judged by the shortest distance L from the pfc to the lane line fitting curve; and when the front vehicle is in the unsafe driving state, an early warning indicator installed in the vehicle is adopted to give early warning to a driver of the vehicle. The device is simple, the method is efficient and accurate, the driving attitude of the front vehicle can be quickly recognized, and the traffic rick is reduced.

Description

technical field [0001] The invention relates to the field of automobile driving safety, in particular to a device and method for observing the driving posture of a vehicle in front. Background technique [0002] With the rapid development of our country's economy, the number of cars is increasing year by year, but various accidents occur due to the uneven driving skills and quality of drivers. When the driver is driving on the highway, he needs to be highly concentrated and requires the driver to make a correct response when encountering an emergency, which requires high driving skills, and what the driver needs more is the reaction time, so Vehicle auxiliary early warning system highlights the greater role. [0003] When the driver drives the vehicle at high speed, the risk factor is higher than that at low speed. Therefore, it is necessary for the driver to observe the driving posture of the vehicle ahead in real time in order to make correct driving actions. Avoid dange...

AI Technical Summary

Problems solved by technology

When in a high-speed state, the driving posture of the vehicle in front is sometimes difficult to distinguish because the driver's attention is not concentrated, or because there are few reference objects around the vehicle in front, especially when the vehicle in front slowly deviates from the lane, this misjudgment will cause Bring greater danger to the vehicles behind; the Chinese patent application number 201510364375.0 discloses a method and device for detecting unsafe driving behavior of the driver of the vehicle in front. This technical solution has relatively high application limitations and cannot be applied to vehicles driving on curved roads When the vehicle is driving on the road, it will not keep driving in a straight line. When the heading angle between the vehicle and the vehicle in front changes or the vehicle is driving in a curve, the distance between the vehicle in front and the lane line obtained by this technical solution is not accurate. , and the device installation is more complicated

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