交通灯控制器系统的设计毕业的设计.doc

交通灯控制器系统设计 学生：XXX 指导教师：XXX 内容摘要：随着当今世界经济的迅速发展，嵌入式系统在生活中的应用越来越广泛，也是生活中随处可见的，同时嵌入式系统的发展也带动我国传统控制检测日新月异更新。在实时检测和自动控制的嵌入式应用系统中，嵌入式技术已是一门核心技术，仅嵌入式方面的知识是还不够的，还应该具备硬件结构，以及针对特定对象的软件相结合，加以完善。 十字路口车辆，行人熙攘，车行车道，人行人道，有条不紊。那么靠什么来呢？靠的是交通信号灯的系统。交通信号灯控制方式。本系统采用MSC-51系列单片机Intel8031和可编程并行I/O接口芯片8255A为中心器件来设计交通灯控制器，实现了能根据实际车流量通过8031芯片的P1口设置红、绿灯燃亮时间的功能；显示时间直接通过8255的PA、PB输出；交通灯信号通过PC口输出；交通灯的点亮采用VT双向晶闸管来控制，直接采用220V交流电源驱动，实用性强操作。Traffic light controller system design Abstract: With the rapid development of todays world economy, the increasing application of embedded systems in everyday life, is life everywhere, and the development of embedded systems has also led to the rapid update of Chinas traditional control detection. In real-time detection and automatic control of embedded applications, embedded technology is a core technology embedded knowledge alone is not enough, should also have the hardware structure and software for a specific object to be perfect. Vehicles non-stop shuttle crossroads, pedestrians bustling, car dealers driveway, walkways, and orderly. You rely on to maintain this order? Rely on embedded system design of the traffic lights. Traffic lights control the way a lot. The system uses the MSC-51 series of microcontrollers the Intel8031 and programmable parallel I / O interface chip 8255A-centric devices to design a traffic light controller, based on actual traffic flow through the 8031 chip P1 outlet red, the green light to kindle time function; show directly through the 8255 PA, PB, port output; traffic light signal output port through the PC; traffic lights lit VT bidirectional control directly to a 220V AC power drive systems practical, easy to operate , functional and strong. Keywords: Embedded Traffic Controller Design Achieve.  目 录 前言 1 1 交通灯控制器硬件系统的设计 1 1.1 交通管理的方案论证 1 1.2 系统硬件设计 2 2 系统工作原理 3 2.1 时间初始化 3 2.2 时间控制 3 2.3 时间输出 4 3 交通灯控制器的软件设计 4 3.1 每秒钟的设定 4 3.2 计数器硬件延时 4 3.2.1 计数器初值计算 4 3.2.2 计算公式 4 3.2.3 每1秒的方法 4 3.2.4