交通信号灯迭代学习控制方法  

Traffic Signal Light Iterative Learning Control Method

作　　者：姚斐 宋芳 YAO Fei;SONG Fang(School of Mechanical and Automotive Engineering,Shanghai University of Engineering and Technology,Shanghai 201620,China;Engineering Training Center,Shanghai University of Engineering and Technology,Shanghai 201620,China)

机构地区：[1]上海工程技术大学机械与汽车工程学院,上海201620 [2]上海工程技术大学工程实训中心,上海201620

出　　处：《软件导刊》2020年第8期95-99,共5页Software Guide

摘　　要：由于城市交通信号灯控制存在着非线性动态特性,对其进行控制时很难进行精确的数学建模,同时路口交通流具有重复性特点,呈现明显的周期性特征。为了减少路口车辆等待时间、提高通行效率,利用迭代学习控制方法,对信号灯周期和各个相位有效绿灯时间进行优化,从而对路口绿灯进行最大化利用,保证车辆在路网中能够高效、平稳地通行。仿真结果表明,在迭代次数达到15次之后,排队长度相位差和误差都趋于零,减少了交通拥堵时间。There are nonlinear dynamic characteristics for urban traffic signal control.It is difficult to carry out accurate mathematical modeling when controlling it.At the same time,the traffic flow at the intersection has repetitive characteristics and presents obvious pe⁃riodic characteristics.In order to reduce the waiting time of intersection vehicles,the iterative learning control method is used to opti⁃mize the period of the signal lamp and the effective green time of each phase,so that the green light of the intersection can be maxi⁃mized and the vehicle can be efficiently and smoothly traversed in the road network.After the number of iterations reaches 15 times,the phase difference and error of the queue length go to zero,reducing the time of traffic congestion.

关 键 词：交通信号灯 交通信号控制 迭代学习 有效绿灯时间 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]