交通信号灯控制系统的设计摘 要摘要：交通信号灯是城市交通有序、安全、快速运行的重要保障，而保障交通信号灯正常工作就成了保障交通有序、安全、快速运行的关键。为此，设计交通灯控制电路，配以七段共阴极数码管显示时间的显示模块，交通灯显示模块，调时模块，实现根据实际车流量通过设置红、绿灯燃亮时间以及双位数码管显示倒计时，三种颜色灯交替点亮以及紧急情况下的中断处理功能。本系统性价比高，实用性强，操作简单，功能全面。关键词：计数器；交通灯；控制电路Abstract Traffic lights in urban traffic in an orderly, safe and an important guarantee for fast running, and the protection of traffic lights to protect the normal work of the traffic has become orderly, safe, fast running key. To this end, the use of single-chip device designed as the central traffic light control circuit, with a total of cathode seventh time the digital display module, the traffic light display module, transfer module, crystal oscillator circuit, reset circuit and chip set red, green and double-time to kindle a digital countdown display, The turn of the three colors of lights and emergency lighting in case of interruption of processing. The system cost-effective, practical, simple, full-featured.Key words: counter；traffic light；control circuit目录摘 要--------------------------------------------------------------------1ABSTRACT------------------------------------------------------------------2第 1 章 交通信号灯的设计目的以及要求----------------------------------4第 2 章 设计原理分析----------------------------------------------------6第 3 章 主控制器--------------------------------------------------------9第 4 章 计数器------------------------------------------------------24 4.1 计数器的作用-------------------------------------------------244.2 计数器的工作情况----------------------------------------------274.3 控制信号灯的译码电路的真值表 --------------------------------------...
