文献翻译——无线交通灯控制器

第1页外文文献资料WirelessTrafficLightControllerAbstractWeproposeanewsystemforwirelesstrafficlightcontroller,itmakesatrafficpolicemaneasilyandeffectivecontrolaroadjunctionwithawirelessremotecontrol.Thesystemhastwomodes,ManualandAutomatic.Manualmodeprovidethecontroloftrafficlighttochangemanuallybythetrafficpoliceman,byjustpressthebuttonrelatedtothedirectionofthestreettomakeagreenlightsignal.TheremotewillrespondbycheckingthebearingofthepressedbuttonontheremoteusingHalleffectssensorregardingtothepositionanddirectionoftheremote.Thensendthecontrolsignaltothetrafficlightcontrollerboard.Inautomaticmode,thetrafficlightcontrollerboardwillchangethelightsequenceaccordingtothepresetpatternsandtimedelay,thetrafficpolicemanbeabletochangethepatternatanytimeusingtheremote.Theproposesystemhelpthepolicemantocontrolthejunctionbyhimselfandbeabletochangeconditionsofthetrafficflowdynamically.Keywords:Wirelesscontrol,Trafficlightcontroller,HallEffect,Remotecontrol,RFtransmission第2页1.IntroductionTransportationisthemostimportantthingforcitylife.Itservestheneedofpopulationtomovethemselvestodesiredplaces.Oneofthemostpopulartransportationiscartransportation.Thereincreaseinbothspeedanddensity.However,mismatchonincreasingnumberofvehicletoroadsurfacemakeaseriousproblemtoeverycity,trafficjam.Theregularmethodtohandlethisproblemisusingautomatictrafficlightcontrol.However,automatictrafficlightcontrolrarelytoadapttheirtimesequenceproperlytonumberofcarsonthestreetineveryperiod,sotrafficpoliceneedtohandlethisinrushhours.Thenormaloperationoftrafficpoliceneedstwoofficers,whereoneinthestreetandotherintheboothtocontroltrafficlight.Worsecase,theyturnoffthesystemandcontroltheterribletrafficbythemselves.Itcostthemtheirhealthwithairpollution,stressandtimeconsuming.Italsocostthepolicedepartmentwithtoomuchofficeronstreetduringrushhours.Fig.1Inthisresearch,weusetheHalleffectssensorforajunctiontodemonstratehowthesystemworksasshowinFig.1.Ithelpspoliceofficertocontroltrafficproblemwitheaseandneedonly1officetodothetask.2.SystemDiagram第3页Fig.2TheblockdiagramofthesystemisshowintheFig.2.Thesystemconsistsofthreemainparts.First,fourofthelightcontroltower.EachoftrafficlightcontroltowerhasMCS-51asamaincontrolunitwhichcontrolsthefourlightsand3digits7-segments.Therefourpossiblelight,red,yellow,go-throughgreenandturn-rightgreen.The3digits7-segmentsusetocountdownthetimebeforechangingtothenextpattern.AllofthetowerscancommunicateviathebususingRS-485protocolforalongdistance.Secondly,themaincontrolandreceiver,Itsfunctionistocontrolthepatternofalltowersaccordingtothemodesetting.Finally,thetransmitter,itisthemaininterfacebetweenthesystemandthetrafficofficer.ItreceivesmodeandspecificpatternfromtheofficerandsendingtomaincontrolviaRF.3.RemoteControlRemotecontrolusestosendthecommandfromoperateofficertomaincontrol.Therearetwomodespossible,manualandautomaticmodes.Inmanualmode,therearethreepossiblepatternsoccurasshowinfig3.First,onlygo-throughgreenison.Second,onlyturn-rightgreenison.Finally,bothgo-throughandturn-rightgreenareon.Anyway,therefoursjunction(road)canbeselected.Policeofficerjustpointstheremotecontroltothedirectionofdesireroadaccordingtoitscompass.TheremotecontrolhasHallEffectsensortosensetheworldsmagneticpoleandsendhecommandaccordingtotherealcompassofpointingdirectiontothemain第4页control.Ithelpspoliceofficetoeaseandcomfortforchangingthedesirejunctionsconditionwiththemselves.Fig.3Inautomaticmode,allof7patternswillchangeperiodicallyaspresettimeinterval.Whichmean,userhastosetupthetimebeforesystemchangethepatternwhenthetimereach.Incaseofofficewanttochangethepatternpriortothetimecounting,justpressoneofthe7-patternsandthesystemresetandstartcountingalloveragain.7-patternsarealllistinfig5.Firstly,waynumber2and4arego-through.Secondly,waynumber1and3arego-through.Thirdly,waynumber2canturnrighttowaynumber1andwaynumber4canturnrighttowaynumber3.Then,waynumber2cangopassthroughwaynumber4andalsoturnrighttowaynumber1.Afterthat,waynumber4cangettowaynumber2and3.Then,waynumber3gowithwaynumber1and2.Finally,waynumber1cangotowaynumber4and3.Fig.4第5页Fig.5Nevertheless,thereisonemoremode,Naturalmode.Ifofficerwanttocancelthealltheoperationofthesystem,justpresstheNorcancelbuttontolettheoriginaltrafficcontrolsystemintheofficeboothtocontrolthetowersinsteadofthissystem.4.ConclusionWehaveshowtheoperationofthetrafficcontrolsystem,whichhastwomainmodes,Manualandautomaticmodes.Inmanualmode,userhastochangethepatternthemselvesbypointtheremotetothedesiretower.Themaincontrolwillsendthecommandtochangethelightonspecifictower.Inautomaticmode,thesystemwillchangetopatternperiodicallyaccordingtopresettimeinterval.Iftheofficewantstochangepatterninstantly,justpressoneof7-patternsbutton.Thissystemprovideseaseabilityyetfullcontrolfunctiontoanofficertomanagetheterribletrafficproblem.Givethemcomfortandreducethecostonextraofficeonthestreet.第6页中文翻译稿无线交通灯控制器摘要：我们提出了无线交通灯控制器的新系统，它使一个交通警察容易和有效控制路口有一个无线遥控器。该系统有两种模式，手动和自动。手动模式提供了交通灯的控制由交通警察手动修改，通过只按有关街道的方向，使一个绿色的光信号的按钮。远程将通过检查按下的按钮的关系就到遥控器的位置和方向的远程使用霍尔效应传感器的响应。然后发送控制信号给交通灯控制器电路板。在自动模式下，该交通灯控制器电路板会根据预先设定的模式和延时改变光序列，交通警察可以使用遥控器来改变模式在任何时间。该建议系统帮助警察通过自己控制的路口，并能够动态地改变交通流的条件。关键词：无线控制；交通灯控制器；霍尔效应；遥控器；RF发射第7页1.简介交通是城市生活中最重要的事情。它服务人群的需要移动到自己希望的地方。其中最流行的交通工具是汽车运输。有增加速度和密度。但是，不匹配于提高车辆的数目，以路面使一个严重的问题，以每个城市，交通堵塞。常规的方法来处理这个问题是使用自动交通灯控制。然而，自动交通灯控制很少适当调整自己的时间顺序来车在每一个时期的街道号码，所以交警需要处理这个在高峰时段。交警的正常运行需要两个军官，其中一个在街上和其他的展位，以控制交通灯。更糟糕的情况下，他们关闭系统，并通过自己控制的可怕流量。这令他们失去与空气污染，压力和费时的健康。在繁忙时间，也花费了警察部门与街道太多工作人员。图1在本研究中，我们使用霍尔效应传感器的接线演示系统是如何工作的显示图1所示，它可以帮助警察控制交通问题提供方便，只需要一个办公室做任务就可以了。2.系统框架图2该系统的框图如图2所示，由三个主要部分组成。首先，四光控塔。每个第8页交通灯控制塔有MCS-51，它控制四个指示灯和3个数字7段的主控制单元。有四种可能的光，红色，黄色，去穿绿色和转右绿。在3位数7段使用切换到下一个模式前的时间倒计时。所有的塔都可以通过使用RS-485协议的长距离总线进行通信。其次，主控制和接收器，其功能是控制所有塔根据模式设置的模式。最后，变送器，它是系统和交通员之间的主要接口。它接收模式和特定模式从人员，并通过射频发送到主控制。3.远程控制遥控器使用发送命令从操作人员到主控制。有两种可能的模式，手动模式和自动模式。在手动模式下，有三种可能的模式发生作为显示在图3。首先，只有去穿绿色的