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1、TechnologyFeaturesResearchofJapaneseRailwaySignalSystemThispaperbeginswiththedevelopinghistoryandtechnicalclassificationofrailwaytransportation,introducestherailwaycontrolsystemusedinJapan,analyzesitstechnologyfeaturesrespectivelyfromtheaspectsofelectronic,computerandcommunicationtechnology,an

2、datlastproposesthetechnicaldevelopingdirectionoffuturetraincontrolsystem.1.IntroductionIntheearlydaysofrailways,therewasnosignalingsystem.Astationattendantshowedthesignalofgoorstopbygestures.Butpeoplewouldmakesomemistakeswhichcausedaccidents.Signalingsystempreventstheaccidentsefficiently.Early

3、signalsysteminJapanwasAutomaticTrafficStop(ATS)devices.Thisdevicecouldautomaticallystopthetrainwhenitreceivedthestopsignal.Evenifthedriverignoredthealarmofthetrain-bornestopdevice,thedeviceonthetrackcouldstopthetrainautomatically.ATS-P(AutomaticTrainStopProtection)wasdevelopedtoraiseefficiency

4、.Usingtherespondertosendareceivedatasignal,ATS-Psystemtransmitsinformationofthedistanceaboutthenextstoptothetrainviathetrack,andthenthesystemgeneratesatrainspeed-checkingpatternwiththeseinformation.ATC(AutomaticTrainControl)systemisdevelopedtoresolveproblemsofATS-P.InATCsystem,safetyoperationp

5、rocedurewillbeactivatedtoguaranteethesafeperformanceofthetrainwhenthetrainoperatormademistakes.Tomeettheneedsofthemodernmassivehigh-efficienttransportation,newtrafficcontrolsystemsareemergingsuchasATACS(AdvancedTrainAdministrationCommunicationSystem),CBTC(CommunicationBasedTrainControl),etc.Wi

6、ththeintegrationofrailwaysignalandcommunicationtechnology,trackstructureofnewpatternandadditionaltrain-bornefunctions.ThispaperproposesthefeaturesofthecurrentrailwaycontrolsysteminJapanwiththedevelopmenthistoryoftherailwaysignalsystemasbackground,andthenshowsitskeytechnologyanddevelopmentsinfu

7、ture.2・RailwaySignalSystemsThefirstrailwaytransportationsystembegantooperatein1830betweenLiverpoolandManchester.Signalsystemwasintroducedtoimprovesafetyandtocopewiththeincreaseoftrafficvolume.In1841,thesignaltechnologywasusedatthetwoend