基于CPLD的交通控制系统设计

Traffic Control System Design Based on CPLD

本文介绍了交通路口感应控制的原理、设计思路,利用可编程逻辑器件CPLD,实现基于VHDL语言编写的交通灯控制系统。该系统通过外部输入信号可方便地设定交通灯的延迟时间,使交通灯控制数字电路设计得到了优化,提高了系统的灵活性、可靠性和可扩展性。

This paper introduces the principle and design idea of the induction control of traffic intersection,and realizes the traffic lights control system based on VHDL language writing by using programmable logic device CPLD.This system can set the delay time of traffic lights conveniently through external input signal,and gets optimal design of digital circuit,and so improve the flexibility,realiability and expansibility of the system.