毕业设计 具有车流量检测功能的智能交通灯设计.doc

目录 摘要 1 英文摘要 1 1 引言 1 1.1 设计背景 2 1.2 研究现状 2 1.3 研究内容及可行性分析 3 1.3.1 研究内容 3 1.3.2 可行性分析 3 2 系统硬件设计 4 2.1 键盘手动设置电路 4 2.2 单片机电路 6 2.2.1 单片机简介 6 2.2.2 单片机电路 6 2.3 信号灯显示电路 7 2.4 数码显示倒计时电路 7 2.5 车流量检测电路 9 3 系统的软件设计 10 3.1 1秒的方法 10 3.2 人工强制程序设计 10 3.3 车辆检测程序设计 11 4 智能交通灯的硬件制作 11 4.1 智能交通灯仿真 11 4.2 智能交通灯的印刷板制作 12 5 智能交通灯的调试 13 5.1 调试准备 13 5.2 调试 13 5.3 调试结果 13 6 结束语 14 6.1 总结 14 6.2 展望 15 参考文献 16 附录 17 具有车检测功能的智能交通灯设计 ：如今十字路口车辆穿梭，行人熙攘，车行车道，人行人道，有条不紊。那么如何实现车辆和行人通行的井然有序，它靠的就是交通信号灯的指挥系统。 本系统采用MCS-51系列单片机AT89S51芯片为核心，实现红绿灯的切换，红绿灯的倒计时时间的显示，主要通过键盘手动设置红绿灯时间的调整以及东西和南北两个方向的红绿灯的强制切换，还能通过红外发射与接收对车流量进行检测，利用单片机将检测到的流量进行处理，根据处理结果控制红绿灯燃亮时间的调整，最后将所得数据由数码管显示倒计时。智能交通灯具有人性化、智能化，创新化等众多优点关键词：单片机 ；交通灯；红绿灯切换；倒计时；键盘设置 Design of Intelligent Traffic Lights Based on Traffic Flow CHEN Xiao-Ping Instructor： (Engineer) (Vocational and Technical Education, Zhejiang Normal University) Abstract: Today, vehicles are very busy in crossroads, pedestrians bustling , motors drive and one pedestrian are orderly. So how to achieve the passage of vehicles and pedestrians are orderly, It is the traffic lights by the chain of command. This system uses the MCS-51 series microcontroller AT89S51 chip as the core, It can achieve the traffic lights switch, Countdown time display of traffic lights, Primarily through the keyboard to adjust the time manually set the traffic lights and things, and northern and southern lights mandatory switch, also through infrared emission and reception of traffic detection, Mcs will be detected by flow processing, Under the control of traffic lights brighten the results of time to adjust, Finally, the data from the digital display countdown. The design of intelligent traffic lights has many advantages, such as human, intelligent and innovation. So the design of intelligent traffic lights has practical. Key Words: Mcs; Traffic Lights; Traffic Light Switch; Countdown; Keyboard setting 1 引言当今，红绿灯安装在各个十字路口上，已经成为疏导交通车辆以及行人通行的最常见也是最有效的手段。交通灯系统的出现，使得交通得以有效管制，对于疏