Traffic light control method, traffic light control device and traffic light control system

Abstract

The invention discloses a traffic light control method, a traffic light control device and a traffic light control system. The traffic light control method, the traffic light control device and the traffic light control system have advantages of improving road traffic safety and ensuring high traffic efficiency. The traffic light control method comprises the steps of determining an objective group in passengers who enter a crossing when the traffic light at the cross is green, wherein the objective group satisfies a condition that the walking speed of each passenger in the group is lower than a preset speed threshold and/or the body height of the passenger is lower than a preset body height threshold; determining prolongation time of the green light according to the walking speed of the objective group and the traffic flow information of the crossing; and controlling state of the traffic light according to the prolongation time of the green light.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to a control method, device and system for traffic signal lights. Background technique [0002] At intersections, the timing of traffic lights is usually fixed, that is to say, the duration of traffic lights is fixed. In this case, the situation that often occurs is that when pedestrians walk to the middle of the intersection and do not pass through the intersection, the traffic signal light changes from green to red, and the vehicle starts to run, making it impossible for pedestrians to continue to pass, especially those with walking difficulties. For the elderly and children, this timing method of traffic lights is even more dangerous. [0003] At present, the timing adjustment method for traffic lights is mainly to dynamically adjust the timing of traffic lights by detecting the passing time of pedestrians and defining the maximum time that a traffic signal can extend....

AI Technical Summary

Problems solved by technology

[0004] On the one hand, the plan does not take into account the time required for pedestrians, especially the elderly and children with walking disabilities, to pass through the intersection. Therefore, it is still easy for pedestrians to go to the middle of the intersection but fail to pass through the intersection. There are great traffic safety hazards; on the other hand, defining the maximum time that a traffic signal can be extended may reduce the traffic efficiency of the intersection

Images