自动控制毕业设计外文翻译

毕业设计（论文）外文参考文献及译文英文题目TechnologyFeaturesResearchofJapaneseRailwaySignalSystem中文题目日本铁路信号系统的技术特点探讨学院自动化与电气工程学院专业自动控制姓名学号201000000指导教师2014年5月10日兰州交通大学毕业设计（外文文献）-1-TechnologyFeaturesResearchofJapaneseRailwaySignalSystemThispaperbeginswiththedevelopinghistoryandtechnicalclassificationofrailwaytransportation,introducestherailwaycontrolsystemusedinJapan,analyzesitstechnologyfeaturesrespectivelyfromtheaspectsofelectronic,computerandcommunicationtechnology,andatlastproposesthetechnicaldevelopingdirectionoffuturetraincontrolsystem.1IntroductionIntheearlydaysofrailways,therewasnosignalingsystem.Astationattendantshowedthesignalofgoorstopbygestures.Butpeoplewouldmakesomemistakeswhichcausedaccidents.Signalingsystempreventstheaccidentsefficiently.EarlysignalsysteminJapanwasAutomaticTrafficStop(ATS)devices.Thisdevicecouldautomaticallystopthetrainwhenitreceivedthestopsignal.Evenifthedriverignoredthealarmofthetrain-bornestopdevice,thedeviceonthetrackcouldstopthetrainautomatically.ATS-P(AutomaticTrainStopProtection)wasdevelopedtoraiseefficiency.Usingtherespondertosendorreceivedatasignal,ATS-Psystemtransmitsinformationofthedistanceaboutthenextstoptothetrainviathetrack,andthenthesystemgeneratesatrainspeed-checkingpatternwiththeseinformation.ATC(AutomaticTrainControl)systemisdevelopedtoresolveproblemsofATS-P.InATCsystem,safetyoperationprocedurewillbeactivatedtoguaranteethesafeperformanceofthetrainwhenthetrainwhenthetrainoperatormademistakes.Tomeettheneedsofthemodernmassivehigh-efficienttransportation,newtrafficcontrolsystemsareemergingsuchasATACS(AdvancedTrainAdministrationCommunicationSystem),CBTC(CommunicationBasedTrainControl),etc.Withtheintegrationofrailwaysignalandcommunicationtechnology,trackstructureofnewpatternandadditionaltrain-bornefunctions.ThispaperproposesthefeaturesofthecurrentrailwaycontrolsysteminJapanwiththedevelopmenthistoryoftherailwaysignalsystemasbackground,andthenshowsitskeytechnologyanddevelopmentsinfuture.2RailwaySignalSystemsThefirstrailwaytransportationsystembegantooperatein1830betweenLiverpoolandManchester.Signalsystemwasintroducedtoimprovesafetyandtocopewiththeincreaseoftrafficvolume.In1841,thesignaltechnologywasusedatthetwoendsoftheNorthMidlandtunnelatthe兰州交通大学毕业设计（外文文献）-2-firsttime.Thetrackcircuitforthetraindetectingwasinventedin1872.ThefollowingwillanalyzetypicalrailwaysignalsystemdevelopedbyJapanNationalRailways(JNR)andEastJapanRailway.Forthesesystems,thelevelisdeterminedbyfixedblockormovingblocksystem.Trainpositionlocatingistakenbythetrackcircuitoronboardtrainlocatingdevice.Theinformationistransmittedthroughthetrackcircuitorradio.(ATS-S)system(Kera,2000)isautomatictrainstopdevicewhichwasintroducedintoJNRtopreventtraincollision.Inablocksectionwhereatrainispresent,atrackcircuitdetectsthetrainpositioninformation,andthecontroldeviceturnsthesignalforthesection.Alloftheothertrainsmuststopbeforethesection.Signalsofothersections,intowhichatraincango,areGreenorYellow.Permittedspeedisdeterminedaccordingtothedistancetothesectionwiththeredsignal.Thereisimportantrelationshipbetweenthesignalstatusofasectionandthetrainposition.TheblocksystemusedinATSwhichisconsistedofthetrackcircuitandsignaldeviceisbasedonthefixedblocksection.ATS-PimprovedtocorrectaweaknessofATS-S.Byusingdigitalinformationfromatransponder,ATS-Ptransmitsinformationaboutsignalaspectsandthedistancetothenextstopsignalfromthetracksidetothetrainandusesthisinformationtogeneratethetrainspeedcheckingpattern.Thenthecomputercomparestheactualspeedandthispattern.Iftheactualspeedexceedsthepatternspeed,thebrakingsystemwillstart.DifferentfromATS-S,ATS-Pwon’talarmthedriver.Thesystemengagestheservicebrakeatmaximumpowerautomaticallywhenthespeedpatternapproachesthedangerpattern.D(Decentralized)-ATCisanintelligenton-boardsystem.EverytraincalculatesitsappropriatepermittedspeedaccordingtothestoppositioninformationfromtheATCcentrallogicsystem.Inhightrafficdensitybrakingontimecanberealizedbypatterncontrol.Thecostofgrounddevicesisreducedbyusinggenealinformationequipmentandadecentralizedsystem.Thesystemcontainstheflexibilityofbeabletoshortenthetrainheadwaywithoutchanginggroundequipmentwhenrollingstockperformanceisimproved.Operabilityisimprovedbyindicatingthetrainusageonroutestodrivers.Alongwithinformationtechnologydevelopssorapidly,anewrailwaytrafficcontrolsystemappears.Thesystemcanmaketrainsknowitsownpositioninformationandthedistancewithothers.ThedevelopingsystemiscalledATACS(advancedtrainadministerandcommunicationsystem).ATACSisanewrailcontrolsystembasedoninformationtechnologyandADStechnology.3TechnologyFeaturesofJapaneseRailwaySignalSystem3.1DecentralizedTechnologyFeatureAtfirstATCwasusedforsupportingthesafetysupers-peedsystemoftheJapaneseShinkansen,andthenwasintroducedtotraditionalrailsystemtoshortenthedistancebetweentrains.Butitcan’tworkeffectivelybecauseoftheATCtechnologylimit.Inthisbackground兰州交通大学毕业设计（外文文献）-3-D-ATC(datadecentralizedATC)basedonADS(autonomousanddecentralizedsystem)developedasthelevel2system.InD-ATCsystemeverytrainisallowedtocalculateitsownspeed.JREa