Vehicle lane change detection method based on radar and video linkage

Abstract

The invention relates to a vehicle detection technology in traffic safety, in particular to a vehicle lane change detection method based on radar and video linkage. The method comprises the followingsteps of: when radar detects that a target vehicle is A meters away from a lane line, judging that the vehicle presses the line, and sending a line pressing trigger signal to a video detector; capturing a line pressing picture of the target vehicle by a video detector; when the radar detects that the target vehicle runs from an initial lane to another lane, namely the target vehicle exceeds the lane line for B meters, judging that the vehicle changes the lane completely, and sending a complete lane changing trigger signal by the radar to the video detector; capturing a complete lane changing picture by the video detector; performing snapshot by the video detector when receiving the complete lane changing trigger signal to form a second picture of the lane changing process, and sending thesecond picture to a platform; and detecting that the lane changing vehicle arrives at the position of a virtual coil by the radar, namely, when the radar detects that the same target vehicle which hastriggered the line pressing and lane change runs to a detection coil, sending a coil triggering signal to the video detector.

Description

technical field [0001] The invention relates to vehicle detection technology in traffic safety, in particular to a vehicle lane change detection method based on radar and video linkage. Background technique [0002] There is a great traffic hidden danger in changing lanes not according to the rules on the expressway, which is one of the important reasons for causing traffic accidents, and has attracted more and more attention from all walks of life. Therefore, how to effectively detect and identify illegal lane changes of vehicles, and prevent and reduce losses caused by traffic accidents has become an urgent task to be solved by traffic management departments today. [0003] The traditional vehicle lane change detection method is through on-site observation by traffic police or manual interpretation of surveillance video. At present, there is also a lane change detection method based on the linkage between the loop coil and the video detector. This method needs to bury two...

AI Technical Summary

Problems solved by technology

[0004] However, the traditional vehicle lane change detection method is time-consuming and labor-intensive. The length of the loop coil vehicle detector is generally only 2 meters, which cannot realize long-distance, multi-lane full lane change detection, and the laying of the loop coil needs to be buried in the road surface, which will damage the road surface. Sexuality, which will reduce the service life of the road

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