Pedestrian crosswalk signal light self-adaptive control method and system utilizing video tracking technique

Abstract

The invention provides a pedestrian crosswalk signal light self-adaptive control method and system utilizing a video tracking technique. According to the pedestrian crosswalk signal light self-adaptive control method, through the video tracking detection technique, pedestrians around the pedestrian crosswalk can be continuously tracked; when the pedestrians are detected to cross street and the pedestrian crosswalk signal light is red, whether the time within which a motor vehicle on the motor vehicle road reaches the pedestrian crosswalk exceeds the time within which the pedestrians cross the street or not is detected; if the time within which the motor vehicle on the motor vehicle road reaches the pedestrian crosswalk exceeds the time within which the pedestrians cross the street, green light passing signal is first provided for the pedestrians and when all the pedestrians cross the pedestrian crosswalk, the green light signal is provided for the motor vehicle instantly; the green light signal is provided for the pedestrians and the passing of the motor vehicle is not affected in the process; the green light time is shortened to the largest extent; moreover, through the adoption of the technical scheme, the pedestrians lingering in the street-cross waiting region but not intending to cross the street are reminded to leave the street-cross waiting region so as to prevent the situations that the passing signal is provided for the pedestrians not crossing the street, the green light resource is wasted and the road crossing efficiency of motor vehicle is reduced.

Description

technical field [0001] The invention relates to the field of pedestrian crossing signal control, in particular to an adaptive control method and system for pedestrian crossing signal lights using video tracking technology. Background technique [0002] With the rapid development of social economy and the continuous growth of urban population, the demand for people to walk through intersections continues to increase. In order to improve the efficiency of road vehicles and ensure the safety of pedestrians, large and medium-sized cities at home and abroad generally use pedestrian crossing lights. Control to provide safe passage for pedestrians to cross the street. [0003] Pedestrian crossings are arranged at intersections, and are also arranged on the road section between two intersections, such as figure 1 As shown, the pedestrian crossings set on the road section, the direction of pedestrians is different from the direction of motor vehicles. The signal light control schem...

AI Technical Summary

Problems solved by technology

The signal light control scheme of such intersections generally adopts fixed-period control, that is, the length of the green light of the signal light of the motor vehicle lane and the green light length of the signal light of the pedestrian crossing are all preset, so there will be a problem: the road traffic efficiency is low, when the pedestrian crossing When a person wants to cross the street, the signal light in the direction of the crosswalk is red, but at this time there is a green light on the motorway but there are no motor vehicles or there are motor vehicles but it is far away from the intersection. At this time, pedestrians need to wait patiently at the intersection to the direction of the crosswalk Until the signal light turns green, this kind of pedestrian crossing signal light control method wastes a lot of green light time.

At present, there is another control mode that uses the pedestrian crossing button request mode. The problem with this mode is that many pedestrians do not know to press the request button when crossing the street, which causes the pedestrian crossing lights to remain red all the time, and the effect is not as good as the regular cycle. Changing crosswalk lights

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