交通信号灯控制系统设计 毕业设计 .doc

摘 要 交通控制系统是近现代社会随着物流、出行等交通发展产生的一套独特的公共管理系统。要保证高效安全的交通秩序，除了制定一系列的交通规则，还必须通过一定的科技手段加以实现。本文在对目前交通控制进行深入分析的基础上，运用地磁线圈检测车流量、实时调整智能化控制的实现技术，将地磁线圈监测、单片机监控保护、实时调整车辆通行时间的算法与单片机控制作用相结合，提出了基于单片机的交通控制系统设计方案。 AT89系列单片机的智能交通灯控制系统由AT89C52单片机、交通灯显示、LED倒计时、车流量检测及调整、盲人通行报警提示、紧急处理、时间模式手动设置、看门狗监控保护等模块组成。系统除基本交通灯功能外，还具有通行时间手动设置、可倒计时显示、紧急情况处理、车流量检测及调整、盲人通行提示等相关功能。理论证明该系统能够简单、经济、有效地疏导交通，提高交通路口的通行能力。 本设计主要做了如下几方面的工作：一是确定系统交通控制系统的总体设计，包括，十字路口具体的通行禁行方案设计以及系统应拥有的各项功能，二是进行系统的硬件电路设计和基本功能要求，包括系统硬件的介绍。三是进行系统的软件设计，主要介绍了系统主程序及设计中个别重要模块的程序流程图。本设计是以件和件相结合的方式来实现，文中给出了具体的硬件电路图和软件流程图。Abstract Traffic control system is a modern society with logistics, transportation and other transportation development a unique set of public management system. To ensure the effective safety traffic, except for a series of traffic rules, also must pass a certain scientific and technological means to achieve. Based on current traffic control based on the thorough analysis, application of geomagnetic induction coil detection of traffic flow, real-time adjustment of intelligent control technology, the magnetic coil, single-chip microcomputer monitoring protection monitoring, real-time adjustment of traffic time algorithm and single chip microcomputer to control the effect of the combination, put forward based traffic control system design. AT89 series of intelligent traffic light control system consists of AT89C52 single chip microcomputer, display of traffic lights, LED countdown, vehicle flow detection and adjustment of blind pass, alarm, emergency treatment, the temporal pattern of manual settings, watchdog monitoring and protection module. In addition to the basic traffic function, also has a passage of time, can be manually set the countdown show, emergency handling, vehicle flow detection and adjustment of blind pass, tips and other related functions. Theory shows that the system can simple, economic and effective relieves traffic, improving the traffic capacity of intersection traffic. The design made the following