毕业论文（设计）基于单片机的智能交通灯设计（硬件部分）.doc

基于单片机的智能交通灯设计(硬件部分)
摘要:因为经济的飞速发展,汽车数量的快速增加,导致道路交通堵塞越来越严重,于是智能交通灯诞生了。目前世界上智能交通系统存在的问题是:超大型的系统结构、管理困难,持续投资大。为了改善现有的交通状况,并克服智能交通灯现有的缺点,我设计了小型化的城乡交通灯模拟控制智能交通灯。该系统投资少,智能化,易维护,简安装。与其它智能交通系统相比,该系统更适应经济和社会发展,符合科技发展的现状。
智能交通灯结合计算机网络通信技术,传感器技术来管理交通灯,形成一个自动控制系统。城市交通控制系统是用于城市交通数据监测、交通信号灯控制与交通疏导的计算机综合管理系统,它是现代城市交通控制指挥系统中最重要的部分。总之,如何采用合适的控制方法,充分利用高昂费用建成的高速公路,缓解主干道,城市与周边地区的交通拥堵,越来越成为交通运输管理需要解决的主要问题。
为此,此系统使用STC89C52单片机设计交通灯控制器, 实现了能根据实际车流量通过STC89C52芯片的P1口设置红、绿灯燃亮时间的功能;红绿灯循环点亮,倒计时剩5秒时黄灯闪烁警示。该系统不仅操作简单,而且有强大的扩展功能。
关键词:STC89C52单片机交通灯倒计时时间显示

指导老师签名:
Intelligent traffic light design based on single chip puter (hardware section)
Student name : Shi Chao Class:1082022
Supervisor : Wu Guo-Hui
Abstract:With economic development, increased the number of vehicles, road congestion is ing increasingly serious, intelligent traffic lights on the emerged. At present, the world's Intelligent Transportation System will be: a huge structure, management difficulties, such as the maintenance of large inputs. In order to improve the existing traffic conditions, and to e the existing ings of intelligent transportation system I designed analog control traffic lights in urban and rural areas of small-scale smart traffic lights. It has small size, intelligence, maintenance into small, easy to install and so on. And other intelligent transportation pared to the system to adapt to economic and social development, in line with the current status of scientific and technological development.
Intelligent traffic lights are prehensive use munication technology, sensor technology to manage the automatic control system of traffic lights. Urban traffic control system is used for urban traffic data monitoring, traffic signal control and traffic puter system; it is the modern urban traffic control mand and the most ponent. In short, how to use the appropriate control method to maximize the use of costly cities to build high-speed roads, trunk road and the ramp to alleviate urban areas with the neighbori