交通信号灯控制电路设计目录摘要..................................................................................................................................................................I1.绪论.................................................................................................................................................................11.1课题研究..............................................................................................................................................11.1.1研究背景...................................................................................................................................11.1.2研究意义...................................................................................................................................11.2研究现状..............................................................................................................................................11.2.1国内外研究信号灯控制现状...................................................................................................11.2.2交通信号灯控制存在的问题...................................................................................................21.3课题研究内容......................................................................................................................................22.交通信号灯....................................................................................................................................................32.1交通信号..............................................................................................................................................32.2交通信号灯的设计要求......................................................................................................................32.3交通信号灯交通法规..........................................................................................................................42.3.1十字路口交通信号灯交通法规规定：...................................................................................42.3.2道路交通安全法实施条例.......................................................................................................53.交通信号灯控制电路....................................................................................................................................53.1十字路口交通信号灯控制系统具体介绍..........................................................................................53.2交通信号灯控制电路分配..................................................................................................................63.2.1控制电路主程序流程图...........................................................................................................63.2.2交通信号灯工作状态...............................................................................................................63.2.3状态译码器...............................................................................................................................73.2.4状态译码电路组成如图...........................................................................................................83.2.5定时及显示系统.......................................................................................................................93.2.6...
