外文文献和翻译.docx

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1、中国石油大学胜利学院本科毕业设计论文文献翻译本科生毕业设计（论文）外文文献翻译译文题目：基于MCGS的交通灯控制系统的设计学生姓名：刘家兴学号：0院系：机械与控制工程学院专业年级：2012级自动化专业指导教师：张晓玲2016年4月20日15中国石油大学胜利学院本科毕业设计论文文献翻译DesignoftrafficlightcontrolsystembasedonMCGSAbstract:Onekindoftrafficlightcontrolsystemusingprogrammablelogiccontroller(PLC),viasoftwarecontrol

2、trafficlightsrunautomatically.Inthesystem,theoriginallineistheprograminsteadoftherelay,programmablelogiccontroller(PLC)systemhardwareandsoftwareresourcestobefairuse.NormaloperationandemergencytransportforadetaileddescriptionandfromtheEastandWestemergenciescanbemutuallylinked.Trafficsi

3、gnalsystemsandtwoseven-segmentdigitaldisplayinthecountdownorder;alsodiscussedindetailthewiringofthehardwareandPLCladder.TrafficlightsatthecrossroadsoftheremotemonitoringsystemdesignconfigurationsoftwareMCGS,real-timemonitoringoftrafficlights,greatlyimprovingthereliabilityofdatatransmi

4、ssion.Atthesametime,wecanconfigurethetrafficlightstochangethestatusofphotographs.Keywords:switchingpower,supplyprotection,circuitsystemdesignSignalcontrolisanecessarymeasuretomaintainthequalityandsafetyoftrafficcirculation.Furtherdevelopmentofpresentsignalcontrolhasgreatpotentialtored

5、ucetraveltimes,vehicleandaccidentcosts,andvehicleemissions.Thedevelopmentofdetectionandcomputertechnologyhaschangedtrafficsignalcontrolfromfixed-timeopen-loopregulationtoadaptivefeedbackcontrol.Presentadaptivecontrolmethods,liketheBritishMOVA,SwedishSOS(isolatedsignals)andBritishSCOOT

6、(area-widecontrol),usemathematicaloptimizationandsimulationtechniquestoadjustthesignaltimingtotheobservedfluctuationsoftrafficflowinrealtime.Theoptimizationisdonebychangingthegreentimeandcyclelengthsofthesignals.Inarea-widecontroltheoffsetsbetweenintersectionsarealsochanged.Severalmet

7、hodshavebeendevelopedfordeterminingtheoptimalcyclelengthandtheminimumdelayatanintersectionbut,basedonuncertaintyandrigidnatureoftrafficsignalcontrol,theglobaloptimumisnotpossibletofindout.Inadaptivetrafficsignalcontroltheincreaseinflexibilityincreasesthenumberofoverlappinggreenphasesi

8、nthec