基于plc的智能交通灯控制系统设计毕业论文.doc

智能交通灯设计 I 论文题目智能交通灯设计(英文) the design of intelligent traffic lights 摘要 PLC 可编程序控制器是以微处理器为基础,综合了计算机技术、自动控制技术和通讯技术发展而来的一种新型工业控制装置。它具有结构简单、编程方便、可靠性高等优点,已广泛用于工业过程和位置的自动控制中。据统计,可编程控制器是工业自动化装置中应用最多的一种设备。专家认为,可编程控制器将成为今后工业控制的主要手段和重要的基础设备之一, PLC 、机器人、 CAD/CAM 将成为工业生产的三大支柱。由于 PLC 具有对使用环境适应性强的特性,同时其内部定时器资源十分丰富,可对目前普遍使用的“渐进式”信号灯进行精确控制,特别对多岔路口的控制可方便地实现。因此现在越来越多地将 PLC 应用于交通灯系统中。同时,PLC 本身还具有通讯联网功能,将同一条道路上的信号灯组成一局域网进行统一调度管理,可缩短车辆通行等候时间,实现科学化管理。关键字: 交通灯 PLC 通讯科学管理渐进式智能交通灯设计 II Abstract The programmable preface inPLC controller isakind ofnew industry controls the device,it regard microprocessor asthe foundation, synthesizing the calculator technique, automatic control technique to develop with munication technique .It has the construction simple, the plait distance isconvenient, high etc. independable advantage, already extensive used for the industry process with the automatic control ofthe position tothe covariance, the programmable controller isakind ofequipments that industry automate toequip the inside the application expert thinks, the programmable controller will e the main means that aftertime industry control with the one ofthe important foundation equipmentses, the PLC, robot, CAD/ CAM will e three major ofpillar that industry the PLC has tothe strong characteristic inadaptability inenvironment in usage, its inner part settles atthe same time the machine resources is abundant very, can tocurrent widespread usage of" enter the type gradually" the signal beacon proceeds the precision controls, special the oscular control inamany branch roads can realizes that isapplied the PLC more and more now intransportation light system the same time, PLC still have munication function, constitute the same ofthe signal beacon onthe road athe bureau proceeds tounify toadjust amanagement, can shorten the vehicle gothrough waiting time, realizing scientific management. Keywords: The transportation light ,PLC ,Communicatio