基于CPLD器件的智能交通灯控制系统设计

Design of Intelligent Traffic Light Control System Based on CPLD

针对目前车辆流量的不断增加,交通灯指挥控制系统设置不合理引起的交通堵塞日益严重的现象,提出了一种基于复杂可编程逻辑器件(Complex programmable logic device,CPLD)的智能型交通灯控制系统,该系统能实现四方向减法计数显示和红绿黄灯指示,还引入射频识别(Radio frequency identification,RFID)技术来优化交通灯控制系统,使系统能根据车流量变化及时调整通行时间。经实验验证设计结果符合要求。

In this paper, in view of the increasing of vehicle traffic, traffic jams caused by traffic lights un- reasonable set are growing, we Offer a superior performance, powerful and reliable work of intelligent traffic light control system based on CPLD device. The system can achieve： four directions subtraction counting dis- play and the red, green and yellow lights indicate, traffic stop time can be adjusted easily, left turn, right turn, indicating a sidewalk, voice IC tips at red light, direct access mode and night mode of movement. Also intro- duced in the text of radio frequency identification （RFID） technology to optimize the traffic light control sys- tem, enabling the system to adjust hours of programmes based on traffic volume changes in a timely manner. Experimental verification of design results meet the requirements.