毕业论文-基于STC89C51单片机的交通灯控制器设计_精品.doc

毕业论文 基于STC89C51单片机的交通灯控制器设计 姓 名： 所在系部： 机电工程系 班级名称： 12级电气1班 学 号： 指导老师： 2015年 5 月 基于STC89C51单片机的交通灯控制器设计 摘 要 随着社会经济的发展，交通在人们的日常生活中占有重要的地位，城市交通问题越来越引起人们的关注。人、车、路三者关系的协调，已成为交通管理部门需要解决的重要问题之一。所以，如何采用合适的控制方法，最大限度利用好耗费巨资修建的城市高速道路，缓解主干道与匝道、城区同周边地区的交通拥堵状况，越来越成为交通运输管理和城市规划部门亟待解决的主要问题。 本设计根据十字路口南北和东西车流量的实时监控，基于一种实验证明了本系统能够很好地实现本次设计要求的功能，The traffic light controller design Abstract With the development of social economy, the transportation is very important in Peoples Daily life，and the urban transportation problem more and more aroused peoples concern. The relations coordination of People，cars and the road has become one of the important issues that the traffic management department needs to solve. So, it has increasingly become major problems of the traffic transportation management and the urban planning departments to solve that how to take the suitable control method to make the best use of urban freeway which has consumed manpower and material resources, and to relieve traffic congestion of the main road-ramp, and the surrounding areas of urban. According to real-time monitoring crossroads of north-south and east-west traffic, this system design of a traffic light controller based on STC89C51 microcontroller, using digital tube LED and a set of red and green light will consume time function, traffic light cycle light, green light for 5 seconds of the end of the countdown yellow lights Flashing warning, using the button makes the system has a countdown, time Settings, emergency processing, manual control and vehicle violation detection based on the specific situation, and other functions. In the light of the KEIL C software programming, mainly to write the main program, LED digital tube display program, interrupt program delay procedures, etc. Proved by experiments that the system can achieve good functions of this design’s requirements, also has a countdown time increase or decrease, nor