摘要城市的不断发展,社会的的进步,也导致了城市的交通的要求也越来越高。现在,机动车不断增多,十字路口的交通也显得尤为重要,影响人们正常生活。社会发展以来,很多科学工作者设计交通方面的科技,发明了很多有利于交通发展的工具。目前,十字路口都采用信号灯来控制交通,因为信号灯不仅自动控制,而且易于维护。好多信号灯正朝着更精确,更多样,方便交通的管理。十字路口车辆人流都特别多,人们要控制交通,考的就是交通灯的自动控制。控制交通灯的方法很多,我们的系统采用的是单片机AT89S52设计的,实现了控制交通灯亮灭的功能。系统实用,操作容易,拓展方向多。68858
毕业论文关键词:AT89S52单片机 时间显示 倒计时 交通灯
The traffic light design based on single chip microcomputer
Abstract The continuous development of city, the progress of the society, also led to the demand of urban traffic is becoming more and more high. Now, the motor vehicle, intersection traffic also is particularly important, influence people normal life. Since the social development, many scientific workers design traffic technology, invented many conducive to the development of traffic tools. At present, the intersection signal is used to control traffic, because light automatic control not only, and easy to maintain. A lot of light is moving toward a more accurate, more persity, convenient traffic management. Crossroads vehicle flow is much more special, people to control the traffic, take an examination of is the traffic light automatic control. Method to control the traffic light a lot, our system USES a single chip microcomputer AT89S52 devices design, realized the function of controlling traffic lights out.
Key Words: AT89S52 single chip microcomputer Traffic lights Countdown. Time to show
目录
摘 要 III
Abstract IV
目录 V
1 绪论 1
1.2 当前社会城市交通灯的现状 2
1.3单片机概述 2
1.4 方案的简要介绍 3
2 系统硬件设计 3
2.1.总体的设计 3
2.2. 单片机的选择 4
2.3 单片机的基本结构和功能 5
2.4.单片机外围电路设计 6
1复位电路设计 6
2外部晶振时钟电路 6
3 显示模块LED灯管设计 7
3 交通信号灯控制系统的设计 7
3.1 十字路口交通信号灯的具体显示方法 7
3.2十字路口交通信号灯示意图 7
4 交通信号灯控制系统程序编制 8
4.1 软件设计应用环境 8
4.2 软件设计流程 8
4.3交通灯定时器模块 9
5 结论 10
谢辞 11
参考文献 12
1 绪论