Lane deviation early warning and driving recording system and method

Abstract

The embodiment of the invention discloses a lane deviation early warning and driving recording system and a lane deviation early warning and driving recording method. In the system, a near infrared light source is matched with an optical filter to illuminate a lane; because the near infrared is non-visible light, near infrared can be used at night, does not influence the visual field of vehicles and pedestrians on the road surface and can illuminate the lane; lane image information is acquired by an image sensor; lane line information is acquired by an image processing device according to preset lane characteristic parameters; and the current vehicle position information is compared with the lane line information obtained through calculation to judge whether a driving vehicle is deviated from the lane, and an alarm is given when the vehicle is deviated from the lane. The system and the method overcome the defect that a condition that the vehicle is deviated from the correct driving lane cannot be prevented when a driver is fatigue or has blurred vision under insufficient light, particularly at night in the prior art, fulfill the aim of recording the driving state in all weather, can reproduce the process of an accident according to stored image information and is favorable for judging the cause of the accident.

Description

technical field [0001] The present invention relates to the technical field of vehicle control, and more particularly, to a lane departure warning and driving recording system and method. Background technique [0002] At present, as a main means of transportation for people to travel, automobiles are favored by more and more consumers due to their advantages of fastness, convenience, strong autonomy and fashion. In the process of people traveling, it is inevitable to drive at night. Due to the lack of outside light and low visibility at night, it will cause hidden dangers to the safety of people's driving. [0003] In the prior art, the infrared video night vision system illuminates the road through infrared lamps installed in the headlight group, and a camera is installed at the front end of the rear-view mirror of the car to photograph the road conditions at night, and then transmit the photographed road image. On the display screen in the instrument panel, the driver act...

AI Technical Summary

Problems solved by technology

[0004] However, there are at least the following disadvantages in the prior art. Although the infrared video night vision system can achieve the purpose of illuminating the road surface when the light is insufficient or the visibility is low, it cannot prevent the driver from being fatigued or blurred when the light is insufficient. The situation of deviating from the correct driving lane will affect the driving of other vehicles on the uplink or downlink and cause unnecessary traffic accidents; in addition, the road surface shooting function in the prior art can only carry out real-time road surface image transmission and Storage, but when the light is insufficient, especially when accidents or emergencies occur at night, the accident process cannot be restored, which brings difficulties for both parties in the accident to determine the responsibility for the accident or emergency

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