基于单片机的交通灯设计毕业设计论文.doc

摘要 本科毕业设计 基于单片机的交通灯设计 摘要 摘要 Ⅰ 摘 要 随着人们生活水平越来越高，家家也都买起了车，交通问题也越来突出。交通系统随着这些情况的产生也发生了巨大的变化 。目前人类技术科学，尤其是电子科技技术的发展能比原来更好的的解决在系统中各方面要求的难题。现如今，人类的生活水平提高，家家几乎都有了车，随之而来的交通问题也日渐紧张，由于需求的增多，交通控制也随之得到了快速的发展。道路，交通等方面的问题需要我们利用有限的资源来使更多的车辆有序快速的到达目的地，而不至于造成交通阻塞和交通问题。还有因为交通线路的问题来实现多车道的适时调整和多线路的分流。 我国交通方面的发展基本只是从1949年新中国成立以后才开始的，虽然部分技术水平正在位于世界前端但是在整体规模和层次上跟其他的发达国家比如美国还是有很大差距的。本毕业设计设计的是具有车流量检测的交通灯系统的设计，它比传统的交通灯多了些功能，比如它可以根据车辆的多少调节通行的时间，车辆多，通行时间多，车辆少，通行时间少。由红外线检测装置检测计数车流量，通过STC89C51单片机计数然后输出给显示器，数码管让它增加或者减少通行时间，我的这个毕业设计还带有特种车辆紧急通行按钮，只要特种车经过就可以触发，让所有道路的车辆给它让行。我的毕业设计中具有软件和硬件设计，还有硬件电路和软件框图，所有模块的小电路图和流程框图还具有各个模块的源代码。 关键词： 交通控制；STC89C51；LED数码管 Ⅱ Abstract As people living standard is higher and higher, and every family to buy the car, the traffic problem is to highlight.Transport system as the creation of these cases are also great changes have taken place.Modern human science and technology, especially the development of electronic technology and mature better hardware and software requirements in the system to build a technology difficult problem.Development goal of traffic control research in human traffic due to the increasing demand for increasingly heavy.The lack of road construction and the rapid growth of the transportation make more road vehicle safety and efficient use of limited resources to avoid due to uncontrolled reasons such as disorderly and controlling for unnecessary obstruction and even paralysis.Also for the entire transit vehicles in many real-time adjustment and transfer of more than the split line is very necessary.In the field of traffic development in our country starts late, the basic from after the founding of new China, although the overall size and level also has the very big disparity with the developed countries in the world, but the parts technology is in the world.In this paper, we study the traffic light control system based on AT89C51 single chip microcomputer controller, the system is equipped with a special