摘要智能交通灯控制系统对交通控制系统的完善有着重要作用，为了更好地控制交通系统，缓解交通压力，本论文基于Arduino设计智能交通信号灯,根据道口检测的交通车流量，实现红绿灯自动切换的功能。基于Arduino的交通信号灯是以型号为ATmega328的AVR单片机作为控制器的主控制芯片。系统可实现以下五种功能：（1）、可以实现数码管倒计时的控制；（2）、能实现信号灯显示的基本功能；（3）、检测车流量调整通行时间，这是通过压力传感器对车流量进行计数，达到一定数值后采用中断延时的程序；（4）、利用红外线传感器与蜂鸣器结合，组成报警电路，对于闯红灯的行人发出安全警报；（5）、利用光敏电阻的特性设计路口违规车辆检测电路，该设计可以更精确的对十字路口的交通进行检测，使交通更加通畅，并对违规行为进行监控。按照本论文设计的功能做出相应的系统试验，设计出了对应的程序代码。在对设计的智能交通灯做测试后，能实现各个方向绿灯25s，黄灯5s，红灯30s的基本计数功能，还实现了报警电路以及违规监测的功能。对于车流量检测的功能还并不能按照设计的那样去实现，这是所做实验的一个缺陷。关键字：智能交通灯Arduino传感器IAbstractIntelligenttrafficcontrolsystemplayanimportantroleinthetrafficcontrolsystem.Inordertobettercontrolthetransportationsystem,alleviatetrafficpressure.ThispaperdesignstheintelligenttrafficlightbasedonArduino,Accordingtothetrafficflowcrossingdetection,trafficlightstoachieveautomaticswitchingfunction.TrafficsignalsystembasedontheArduinouseATmega328microcontrollerasthemaincontrolchipofthecontroller.Thesystemcanachievefivebasicandinnovativefeatures:Firstly,digitaltubecanachievecountdown;Secondly,thedigitallightscandisplay;Thirdly,italsocanrealizetheflowrateoftrafficdetectionandadjustmentofthepassageoftime,itcountthenumberoftheflowrateoftrafficupthroughthepressuresensorfortraffic,whenitcomestoacertainvalue,theinterruptlatencyoftheprogramwillbeexecuted;Fourthly,thisdesignalsocombineswiththeuseofinfraredsensorandthebuzzertobeanalarmcircuit,whentheredlightofthepedestrianissuesasecurityalert.Last,theuseofphotosensitiveresistancecharacteristicdesignofintersectionvehicleviolationdetectioncircuit,thedesigncanbemorepreciseofintersectiontrafficandmakethetrafficmoresmoothly,andtomonitorviolations.IIMakethecorrespondingexperienceaccordingtothefunctionofdesign,designedthecorrespondingprogramcode.Inthedesignofintelligenttrafficlighttestcanrealizeeachdirectionofthegreen25s,yellowlight5S,red30sbasiccountingfunction,butalsotoachievethealarmcircuitandillegalmonitoringfunction.Thetrafficflowdetectionfunctionisnotinaccordancewiththedesignastorealize,thisisalimitationfortherealthing.Keywords:IntelligentTrafficlightArduinoSensorIII目录摘要...................................................................................................................IAbstract................................................................................................................II1绪论..................................................................................................................11.1研究背景................................................................................................11.2研究意义................................................................................................21.3设计内容................................................................................................32总体设计方案...................................................................................................52.1智能交通信号灯的功能..............
