摘要
概述了基于Rockwell PLC(可编程逻辑控制器)的智能交通信号控制系统的研究和设计方法。通过Rockwell公司的MicroLogix1500 PLC实现道路十字路口东西和南北方向各3个车道的红、黄、绿方向指示灯显示以及相应的倒计时的数字显示;利用采集的车流量信号和模糊控制算法可自动调节交通信号倒计时的初值以适应路口车流量的变化。
The research on and the design method of how to control crossroad＇s traffic light system based on PLC are discussed in this paper. By means of Rockwell Company＇s MicroLogix 1500 Programmable Controller, we implemented the count-down display and the traffic light of north-south three driveways and westeast three driveways in colours of green, yellow and red at the crossroad. Using the amount of vehicle detected by the sensor and the algorithm of illegibility-control, the system can change the initialization of count down display to adapt to the change of the amount of truck crossed.
出处
《信息化研究》
2009年第5期10-13,共4页
INFORMATIZATION RESEARCH
