基于西门子PLC智能交通灯的设计与实现  

Design and Implementation of Intelligent Traffic Lights Based on Siemens PLC

作　　者：蒋强 李瑞宁 JIANG Qiang;LI Ruining(School of Mechanical and Electrical Engineering Longnan Teachers College,Longnan Gansu 742500)

机构地区：[1]陇南师范高等专科学校机电工程学院,甘肃陇南742500

出　　处：《软件》2022年第12期115-117,共3页Software

摘　　要：目前,人民生活水平不断提高及汽车价格的下降,城市车辆数量逐渐增多,交通拥堵问题日益严峻,极大地增加了事故发生率。而传统固定时间控制模式的交通信号灯时效性差,无法实时适应道路多变复杂的交通流量,往往满足不了现阶段复杂路况。本文介绍了一种基于西门子S7-200 Smart PLC作为核心中央控制器实现的智能化交通灯控制系统,全天候采集动态车流量信息,可远程自动调控交通灯通行时间,进一步升级优化交通控制系统,达到了实时随交通流量对红绿灯信号时间智能化的调节,减少车辆在红绿灯前等待的时间,减少交通拥堵,提高通行效率和城市交通管理能力。At present, with the continuous improvement of people’s living standards and the decline of car prices, the number of urban vehicles is gradually increasing, and the problem of traffic congestion is becoming more and more serious, which has greatly increased the incidence of accidents. The traditional fixed time control mode of traffic lights has poor timeliness, can not adapt to the changeable and complex traffic flow of the road in real time, and often can not meet the complex road conditions at this stage. This paper introduces an intelligent traffic light control system based on Siemens S7-200 Smart PLC as the core central controller, which collects dynamic traffic flow information all day, can remotely and automatically adjust the traffic light travel time, further upgrade and optimize the traffic control system, achieve the intelligent adjustment of traffic light signal time with traffic flow in real time, reduce the waiting time of vehicles in front of traffic lights and reduce traffic congestion, improve traffic efficiency and urban traffic management capacity.

关 键 词：西门子S7-200 Smart PLC 人机界面 智能化 交通信号 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]