The traffic light controller design based onsingle chip microcomputerAbstract This design is designed for intersection traffic lights control system, in order to realize the automatic control of the traffic light； System design of 4 kinds of traffic state， and timer displays the time each state。On the basis of the analysis of system function ， choose the with the single chip processor as the core controller to realize the plan. Hardware part includes single chip microcomputer minimum system ， time ， according to traffic status indicator and button control circuit. Each state of the holding time can be set by keyboard. Software adopted the modular design method， distinct， easy to modify.In the Proteus control function of this system are simulated， the simulation using light-emitting diodes simulation when traffic lights ， with two 7 digital display time, the simulation results show that this system has realized the intersection traffic light automatic control function.Key words: traffic lights， microcontroller， display目 录摘 要....................................................................I引 言...............................................................— 1 -第 1 章 绪 论.........................................................- 2 —1。1 本课题讨论的意义及进展趋势.............................— 2 —1.2 课题讨论的意义............................................— 3 —1.3 单片机交通控制系统主要讨论的内容..........................- 3 -第 2 章 系统方案的比较、设计与论证.................................— 4 —2.1 方案的比较................................................— 4 —2。2 电源提供方案...............................................- 5 -2。3 显示界面方案.............................................— 5 —2。4 输入方案.......................................
