Method and device for realizing self-adaption of traffic light

Abstract

The invention relates to a method and a device for realizing self-adaption of a traffic light. The method comprises the following steps of: acquiring traffic flow information in a predetermined range in each direction of an intersection by shooting in real time; and controlling the traffic light in a traffic light conversion period according to the traffic flow information, history traffic light information stored in a traffic light information database and preset pass matching modes. Based on the acquired real-time traffic flow information in different directions of the intersection, calculating history pass data under the same condition are calculated according to the mutex relationship among pass directions of the intersection and all preset pass matching modes calculated according to the mutex relationship so as to obtain optimal pass time of the intersection; and an appropriate pass scheme can be provided for the intersection in each traffic light conversion period in a step-by-step iteration mode, so that average vehicle waiting time is reduced, optimal pass control of the intersection is realized, intelligent self-adaption effect of the traffic light is achieved and road resource is utilized more fully.

Description

technical field [0001] The invention relates to the field of traffic signal control, in particular to a method and device for realizing self-adaptation of traffic lights. Background technique [0002] In the existing traffic light control system, the control of traffic lights is basically not intelligent, and the parameters such as the switching sequence and switching time of the traffic lights are manually fixed, and there is no active adaptation according to the real-time road conditions. [0003] At present, there are also traffic light systems that can automatically adjust the control parameters according to the traffic flow, such as the Chinese patent application number 200810112910.3. The purpose of this patent is to automatically adjust the traffic light control parameters according to the traffic flow changes in different directions and the traffic conditions of the entire area. , in order to improve the traffic efficiency of the intersection and realize the traffic ...

AI Technical Summary

Problems solved by technology

[0004] However, this patented technology has the following deficiencies: although it provides some adjustment principles for traffic light control parameters, it mainly solves the problem of setting traffic light control parameters according to the distance of vehicles stopping and queuing at intersections, so it cannot provide a relatively accurate parameter for traffic light control

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