内容参考案例ets2vcr

ofPISSystemforPreparedCheckedApprovednedmodificationandIssueSectionsChange概况 概况 缩写定义Abbreviation 采用标准 系统方案设计System 系统概述System 系统原理图SystemSchematic 系统配置SystemConfiguration 列车广播与乘客信息显示系统功能TrainPAandPIDS LCD系统功能LCDMediaSystem LCDLCDMediaSystem 车载系统功能FunctionofTrain-borneCCTV 车载WiFi系统Train-borneWiFi 系统概述System 点播系统组成AVODSystem 点播功能介绍AVODSystemFunction 列车广播系统设备介绍Train-bornePASystemEquipment 广播及控制系统控制主机Train-boardAnnouncementCommunication& Switch 室广播控制盒DriverAudioControl 乘务员区和吧台广播控制盒CrewAudioControl 手持话筒Hand 室扬声器Cab 车厢广播及控制分机PublicAddressControl 客室内扬声器/卫生间扬声器Saloon 客室外扬声器Exterior 乘客紧急器Passenger 车外目的地LED屏SideDestination 客室内LED显示器nternalInformationDis 乘客信息显示器SideInformationDisy&CoachInformationDis 车号显示器CoachInformationDis 列车车载设备介绍Train-borneMediaEquipment 24"壁挂式LCD显示器24"WallHangingTypeLiquidCrystalDis 19"内嵌式LCD显示器19"EmbeddedLiquidCrystalDis 19"顶置式LCD显示器19"TopMountedLiquidCrystalDis 列车车载系统设备介绍Train-borneCCTVSystemEquipmentIntroduction网络服务器 室LCD触摸屏TouchScreen 客室半球机SaloonHemisphere 室机Cabin 客室全景机SaloonPanoramic 室前端机Front 吧台机Bar 后视机RearView 受电弓机Pantograph 车载WiFi系统设备介绍Train-borneWiFiSystemEquipment 室和客室4G路由器Cab4GRouterandSaloon4G AP（含天线）WirelessAccess 4G天线 WIFI天线 FM天线FM GPS天线GPS 车载AVOD点播系统Train-borneAvod AVOD服务器AudioandonDemand VEU控制盒VEUControl VEU显示器VEUDis 乘务室呼叫显示器CrewareaServiceCallDis 吧台呼叫显示器BarServiceCallDis mainlydescribesthefunctionandtechnicaldesignofthetrainpublicaddresssystem,includingPAsystemandautomaticstopannouncementsystem,cabtocab ,emergencyalarmsystem;on-boardpassengerinformationdisysystemandCCTVsurveillancesystem.Themaincontentsinclude:proposalsonsystemstructure,equipmentcomposition,systemfunctions,equipmentspecification,operationinstructionsandotherrespects,whichneedtobedecidedinthedesignandliaisonstage.AbbreviationTable1EnglishdefinitionCloseCircuitElectromagneticElectromagneticLightEmittingHumanMachineOperationControlTrain-bornePublicAddressPassengerInformationPassengerInformationdisymendedStandardmendedStandardEnglishdefinitionTrainControlandManagementPAPublicAddressTable2EquipmentEnglishdefinitionNetwork网络服务Train-boardAnnouncementCommunication&SwitchUnit广播及系统控制主PublicAddressControl车厢广播及系统分TouchScreenLCDCabin室Front室前端RearViewCamera-后视机-左（含外壳RearViewCamera-后视机-右（含外壳SaloonHemisphere客室半球SaloonPanoramic客室全景Bar吧台Pantograph受电弓LiquidCrystalDis24"LCDLiquidCrystalDis19"LCDLiquidCrystalDis19"LCDHandGooseneckEnglishdefinitionDriverAudioControlCrewAudioControlSaloon客室内扬声器/ExteriorCabSideDestinationLEDPassenger乘客紧急InternalInformationDisLEDCoachInformationDisSideInformationDisy&CoachInformationDisyGPSGPS&4GGPS/4GFMFMFMAudioandonDemandServerVEUControlVEUVEUDisVEUServiceCallDisServiceCallDisCab4G4GSaloon4G4GWirelessAccessAP（AP2根Englishdefinition4G 4GWIFI WIFITable3ApplicationStandard1Railwayapplication-electronicequipmentusedonrollingstock2Electronicequipmentforrolling3Electromagneticcompatibility:Apparatusonrolling4IECRailwayapplication-electronicequipmentforrolling5IECRailwayapplication-RollingstockequipmentShockandvibrationtests6IECDegreesofprotectionprovidedbyenclosures(IPem SystemPassengerinformationsystemofMalaysiaETS22Projectisacomprehensiveinformationsystembasedontechniquessuchascomputernetwork,communicationtechnology,multimediatechnologyandsoon,centeringoncomputersystemandtakingvehicleterminalasthemedium,whichisusedtoprovideaudioandinformationtopassengersandincludestrain-bornepublicaddresssystemandLEDpassengerinformationdisysystem,LCDmediabroadcastssystem,CCTVPIDS、AVODisLinuxsystemandthePAsystemistheembeddedsystem.Thecorecontrolequipmentofcabinsandsaloonsadoptmodulardesignandplug-infunctionboardandmoduleareintegratedinthe19inch3Ustandardbox.Trainbusofthissystemadoptsdoublebus:oneisPAbusoftrain-bornepublicaddresssystem,andtheotheris1000MEthernetbus.ThePAbusofthissystemisequippedwithdoublepublicaddressaudiobus, audiobus,anddoublecommunicationcontrolbus(CANBUS),totransmitspeechsignalfrominternalpublicaddressand ,etc.andcontrolsignalofwholepublicaddresssystem.Thissystemadopts1000MEthernetbusandeachsaloonisequippedwithaswitchforthetransmissionofthedigitalmediaprogramsandthemonitoringTheequipmentofPISsystem（PA/CCTV/PIDS/AVOD）ofMalaysiaETS2projectineachcompartmentispoweredonindependently.Andwhenpoweroff,thePAandCCTVsystemwillbepoweredbythestoragebattery.Andtherelatedfunctionwillbeprovidedundertheemergencycircumstances.WhenthePAsystemispoweronthesystemwillbeenabledautomaticallyandafter10seconds,thecommunicationsbetweeneachequipmentwouldbenormal.ThecommunicationindicatorsofACSU、PACU、DACU、CACUlightup.Throughthepaticswitchtoturnonoroffthetrain.Whenthetrainispoweredoff,theequipmentofPISwillturnoffinstantly.WhentheCCTVsystemispoweron,thesystemwillbeenabledautomatically.TheTLCDispoweronforabout1minutetocompletethebootanddisythecamera.Itturnoffinstantlywhenpower pletethebootaftertheNVRispoweredonforabout2minutesandstartthe poweroff,theinternalsupercapacitorofNVRwillprovidepowersupply.aftershutdowntheharddriver'sreadandwritefunctionnormallywithin1minute.,theNVRwillshutdown.Thecamerastarttoworkwithin20secondsafterpoweron.PassengerinformationsystemiscomposedofthefollowingPublicaddress Passengerinformationdisysystemc）CCTVsurveillancesystemWifi2.2SystemSchematicTopologyoftheFigure1 SystemConfiguration1）MainhardwareconfigurationoftheTable4Equipmentofthe112CommunicationSwitch112ControlUnit1111116TouchScreen112Cabin112Front112RearViewCamera-112RearViewCamera-112SaloonHemisphere222222SaloonPanoramic222222Bar11Pantograph11224"LiquidCrystal121221919"LiquidCrystal111319"LiquidCrystal233333Hand1113112DriverAudioControl112CrewAudioControl1113SaloonExterior222222Cab112SideDestination222222232332InformationDisy222222CoachInformation244442SideDisy&CoachInformationDisy224GPS&4G112FM112AudioandonDemandServer1111VEUControl11VEUDisServiceCallDis11ServiceCallDis112Cab4G112Saloon4G11114222222 11114 112Call TrainPAandPIDSOneACSUissetineachcabin,asthemaincontrolequipmentoftrain-bornepublicaddresssystemandpassengerinformationdisysystem.TwoACSUaresynchronousclockredundancysystems,andinctivebackup.Ingeneral,theACSUincabinatoneendismainengine,andtheACSUincabinattheotherendissparemachine,mainengineistocompleteallfunctionsforthesystemoperation.Whenthemainenginefails,sparemachinecantakeovercontrolthesystemautomaticallyand ethemainengine,tofinishallworkoftheoriginalmainengine,soasnottoaffectthefunctionoftrain-bornepublicaddresssystemandpassengerinformationdisysystem.OneDACUissetonthedrivingtformineachcabin,whichisdirectlylinkedtothePABus,toprovideahuman-machineinterfacefortrain-bornepublicaddresssystem.ThedrivercanoperateavarietyofcommunicationsystemsbyDACU,suchasmanualPAtopassengersinsaloons,cabin etc..Human-machineinterfaceincludesindicatorbutton,LCDdisyunitandmicrophoneincabin.DACUisinstalledontheconsoleincabins,andthereisdata/voiceinterfacebetweenDACUandACSU,thedriver’scontrolinstructionsandvoiceinformationcanbetransmittedtotheACSUforprocessingthroughtheinterface.WhenACSUattwoendsfails,becauseDACUislinkedtothePAbus,thesystemcanstillguaranteethebasicfunctionssuchasmanualPAandcabin ,etc.throughthePACU,andmaintainhighredundancyofthesystem.OnePACUissetineachsaloon,ascontrolterminalofsaloonPAandpassengerinformationdisysystemineachsaloon.PACUislinkedtothePABus,soifPACUinonesalonfails,PACUintheothersaloonscanstillkeepnormaloperationwithoutBetweentheThedrivercan inowncabinwiththedriverintheothercabinwithpressingthebuttonCCinDACU.Thedriverinowncabinisspeakingwiththebutton“CC”onwhiletheotherislistening.WhenthedriverreleasesthebuttonCCandthebuttonlightgoesoff,thecabtocab isover.The betweenthetwodriversisindependentfromthePAsystemandthe willnotbetransmittedtoanypassenger.ThedriverscanlistentoandseethecallofeachotherthroughtheloudspeakerandLEDindicator.4cabs iftwotrainsareThisfunctionisnotrestrictedbythekeysignalinthe2.4.2PAfromtheDriverToThedrivercanmakePAtopassengersthroughtheDACUwithpressingthebutton“PA”,afterpressingthebutton“PA”,ifthereisnotoccupiedbyhigherpriorityfunction,manualPAfunctionwillbeactivatedforthedriver,andtheSaloonLoudspeakerandCabLoudspeakeratbothendswouldring“DingDong”forreminderonce.Namely,thedriverbroadcaststothepassengersthroughthemicrophone,thebroadcastingcanbeheardinthesaloonandtheothercab,butitismuteinthecabwhichbroadcasts.Onlythemaincabcanbroadcasttoallthesaloonswhentwotrainsare2.4.3PAfromtheDriverToAtthecrewareaandthebar,thecrewcanbroadcasttothesaloonthroughthemicrophone.Thecrewcanbroadcasttothetwotrainsatthesametimewhentwotrainsarecoupled.BetweentheDriversandtheThecrew withthecabsatbothThecrew with4cabswhenthetwotrainsare2passengeremergency s（PEI）areinstalledineachsaloonand1ineachtoiletfor betweendriverandpassengersincaseofemergency.ThereisamicrophoneandaloudspeakersetinthePEI,andpanelhas3LEDindicators,usedtoindicatetheworkingstateofPEI.Incaseofanemergency,passengerscan withthedriverthroughPEI.Whenthedrivercommunicateswiththepassengergivinganalarm,onlyactivatedcabloudspeakerandtriggeredPEIcanlistentothecall.Alarmand canbeestablishedandbroadcastedsimultaneously,thatis,whenbroadcasting, betweenthecabtocabandcabtosalooncanberealizedatthesametime.WhenmanyPEIsalarmatthesametime,thesystemcanstorealarmsignalsfromdifferentsaloons.Analarmfromonesaloonisturnedon,thealarmfromtheothersaloonswouldbeinthequeuestatus.Hanginguponealarm,thenextalarmwhichhasbeenstoredwillautomaticallyaccesswiththebuzzhummingandtheTLCDdisyingthesaloonnumber.WhenmanyPEIsaccesssimultaneously,thedrivercangetthroughanyofthemaccordingtothesituation.Aftereveryalarmisend,thedrivercouldresetPEIremoyintheWhenthepassengersendsanalarmtospeaktothedriver,thereshouldbealightsignalshowingthesendingofthealarmandasoundandlightsignalshowingthearrivalofthealarminthecabandcrewarea.AtthesametimethelocationoftheactivatedPEIisshownontheTLCD.Theemergency canbepausedtemporarilyifthereisarequestofahigherpriority.The canbemadewhentwotrainsareUploadthePEIstatustoTCMSthroughMVB,theHMIindicatorofcontroldeskincabwilldisytheworkingstatusofeachPEI.Figure2EmergencyDigitalvoiceannouncement/closing-doorThesystemcanythepre-recordeddigitalspeechfilethroughtheinternalloudspeakers.ThePAsupportsdifferentlanguagesandthebroadcastcontentisprovidedbytheowners,includingtrainstopnotification,informationservice,serviceexpressionPA,alarmsound,closing-doortipsandsoon.Userscanupdatethepre-recordedspeechfilesstoredinthestoragemediumofsystembyconnectingthedouble-endUSBtotheCAPUmodule.DigitalspeechPAhastwokindsofmodesincludingautomaticandmanual,whichcanbeswitchedbythedriver.AutomaticdigitalPAInthismode,train-bornepublicaddresssystemreceivesthetriggersignalreal-timelyfromtheGPS,toautomaticallybroadcastpre-recordeddigitalvoicefile.Defaultbusstopannouncementmodeofthesystemisautomaticannouncement.Inthismode,train-bornepublicaddresssystemtriggersallbroadcastcontentsthroughthespeedandpositionsignalsentbyGPStobroadcastautomaticallyanddisysthestationsimultaneously.Beforechoosingautomaticannouncement,thesystemshouldconfirmthevehicleinformationsuchasuplinkordownlink,terminal/startingstationinformationandskipstopinformation.ManualdigitalBasedontheautomaticannouncement,thedrivercanselectmanualdigitalannouncementontheTLCDattheactivatedendandthenselectthebroadcastinginformation,stationcodeandthenextstationtobroadcast.Thedrivercanalsoselecttheemergencyandserviceinformationtobroadcast.Thesemi-automaticannouncementcanbroadcastthedigitalannouncementsuchasstation,serviceandemergencyinformation.Figure TLCDManualDigitalBroadcastThedrivercanbroadcastthenextstopandtherelatedinformationtothesaloonsinadvancethroughthemicrophoneofPAsysteminthecab.StoragecardstoringbroadcastcontentsusesgenericSDcard(8GB),anditsstoragecapacitycanbeallowedtobroadcastabove100stations,60secondsforeachstationatleast,thespeechisnotlessthan240minutesintotal(calculatedthroughcompressionsamplingMP3inaccordancewiththeCDquality,128Kbps16KHzbandwidth),andthecapacitycanbeexpandedaccordingtoactualrequirements.TheformofSDcardispluggable,interfaceissetonthechassisforSDcard,SDcardcanberemovedwithoutopeningthechassis.Meanwhile,thecabcontrolhostunitalsoprovidesUSBinterfaceforcustomerstoreviseanddisythecontentsofthebroadcast.Thesystemprovidestherouteselectionandediting.ThesystempresETS29routesfromwhichthedrivercanselectanyone.Ifnecessary,thedrivercaneditnewroute.TheaboveoperationiscompletedontheTLCD.Figure4TLCDrouteWhenthedigitalannouncementistriggered,thecabroomatbothendsandtheSaloonLoudspeakerbroadcastthecorrespondingaudio.AndtheSideDestinationIndicator,InternalInformationDisy,SideInformationDisy&CoachInformationDisy(SID),24"WallHangingLCD,19"EmbeddedLCD,19"TopmountedLCDwilldisythecorrespondingstationinformationsimultaneously.SideDestinationSDIisusedtoshowthedestination,coachnumberandotherinformation.Thecontentsaresynchronizedwiththesemi-automaticandmanualdigitalannouncementandthecontentsandtherulescanbeeditedthroughTLCDandPTU.ThecandetectthestateandfailureofeachdisTheSDIcandisyselectedinformationalmessages,intandemwiththeSID.MessageswillbedbyKTMB,inadditiontothefollowing:SPECIALTRAIN,NOTINSERVICE,TODEPOT,UNOERTESTING.Thedisydisystheinformation/name(exceptthecoachnumber)inascrollingway.Figure5SideDestinationSideInformationDisy&CoachInformationDisFour(4)SIDpanelsareprovidedforeachtrainandeachpanelismadeupofthreeLEDmatrixinformationlinesThefirstlineisseparatedintotwocolumns–theoneontheleftdisys6-charactertrainnumber,whiletheoneontheright(CID)disys2-charactercoachnumber.Afixedlabelidentifieseachcolumn.Thesecondlinedisysthedestinationofthetrain(atleast10characters);thethirdlinedisystheinformationprovidedbyKTMBoraspecialtrain.SPECIALTRAIN,NOTINSERVICE,TODEPOT,UNDERTESTING;thedisdisystheinformation/name(exceptthecoachnumber)inascrollingThedisycontentsandrulescanbeeditedthroughTLCDandPTU.Thesystemcandetectthestateandfailureofeachdisy.Figure6SideInformationDisy&CoachCoachInformationDisTheCIDcoachnumbersaresetmanuallythroughtherouteselectionsoftware.candetectthestateandfailureofeachdisy.TheLEDisArialinfontandamberin7Figure InternalInformationDisTheIIDisusedtodisythearrivalstation,thenextstation,thedestination,time,temperatureofasinglecoach,occupancystateofthetoilet,coachnumber,trainnumber,speedandotherinformation.TheindicatordisystheinformationinrollingThecoachnumberisamberincolorandredininformationdisFigure8InternalInformationDisSaloon1loudspeakerissetinthecaband1inthecrewarea;10loudspeakersaresetinthesaloonand1inthetoiletfortheon-boardPAtobroadcasttothesaloons.Exterior2loudspeakersaresetineachsaloonfortheon-boardPAtobroadcasttothestation.ThePAaudiocanbeselectedintheconsoleorthecrewareatobetransmittedthroughtheinteriorspeakerortheexteriorspeakerorbothatthesameFMSwitchingBroadcastWhenthemulti-mediacontentsaredisyedonthePIDSequipment,thePAsystemcanreceivetheFMfromthelocalFMradio.ThroughthePAinterfaceofTLCDscreentoentertheFMsettinginterface,clickthe“FMon”toturnontheFMbroadcast,andadjustFMradiofrequencythroughFigure9FMPriorityDifferentPAshavedifferentprioritiesandtheycanbeadjustedthroughthesoftware.ThePAwithhigherprioritycaninterruptthelowerpriorityandtheemergencyPAanddigitalPAwillnotrecoverafterinterruptedbythehigherpriority.ThesystemdefaultsthePApriorityasfollows（fromhighleveltolowPAtopassengersfromthePAtopassengersfromtheEmergencyDigital panying levelbetweenthe betweenthepassengerandthebetweenthecrewandtheSincethe audiobusandthepublicaddressbusseparatefromeachother,theirprioritylevelsarealsoindependent.The betweenthedrivers,thepassengerandthedriverorthecrewandthedrivercanbeconductedwhileTrainWhentwotrainsarecoupled,thefollowingfunctionsneedtobeAutomaticandmanualPAtothesaloonfromthedriverorthe betweenthepassengerandthedriverortheMulti-mediadisPISfunctionssuchasCCTVsurveillanceandybackarerealizedatthemaincontrolend;OnlineThesystemsupportstheonlineupdateofallthedevicesandmodules.Itcanupdatethesoftwareofapieceofequipment,equipmentofthewholecarorthewholetrainoneithersideofACSUwithoutremovingtheequipment.Figure PTUonlineupdateErrorASCUineachcabhasthefunctionofrealtimesystemdetectionwhichcanbeuploadedtoTCMS.Meanwhile,fortheconvenienceofdetection,thePTUofthesystemcanachieverealtimedetectionandrecordtheworkingsatusofthesystemFigure11PTUerrordetectionPowerFailureAfterthepowersupplyisrecoveredfortrain-bornepublicaddresssystemandpassengerinformationdisysystem,thesystemwillstarttoworkautomatically.LEDdisyunitsupportsthefunctionofpowerinterruptionrecovery.Whentheauxiliaryinverterisinproblemandcan’tpowerup,thePAsystemwouldbepoweredbytheemergencypowersupplysystemwhichisthestorage LCDMediaSystemTheon-boardLCDdisymediasystemincludesMPS,switch,MPDandLCD2.5.1LCDMediaSystems(6)of19inchesLEDLCDaresetontheceilingofeachsaloonto,butnotlimitedto,disythelocaladvertisement,publicinformation,movies,informationandadvertisement.ThedisyimageshouldbesynchronizedwiththepublicBothendsofthetrainareequippedwithamediacontrollerwiththesamefunctionandtheykeepredundancythroughtheon-boardswitch.Generally,onlythecontrolleratthemaincontrolendworks.Whenthecontrollerfails,theotherwilltakeovertokeepredundancyandimprovethereliabilityoftheequipment.ThemediacontrollerhasthefollowingDisythelocalinformationontheharddiskoftheLCDmediaDefinetheremainingalarmspaceofthediskandthesystemcanalarmautomaticallyaccordingtotheactualuseofthediskspace.OneLCDscreenwhichcandisyautomation,pictureandTheon-boardLCDcontrollercanoutputaudio,synchronizedwiththeLCDcandisyinmulti-screens.Thedisycontentsincludes,butnotlimitedto:time,thenextstation,theterminal,speed,temperature,runningroute,trainposition,mediainformation,advertisementsandoperablevehicleinformation.f）fileformatstobesupportedbythesystemshallincludeasaminimum,thefollowingcontainerformats:AVI,MPEG,MPG,MP4.(allencodedinMPEG4AVCThedrivercanselecttheprogramsthroughLCDtouchscreenandadjustvolume,continuetoy/yback,thelastprogram,thenextprogram,y/pause,stop,fastforwardandrewind.Themaintenance nelcanrearrangetheorderforthedisycontentstocontrolthedisyorderofthes.Themoviescanbeupdatedautomaticallythroughwifisystemandtheon-boardwifisystemwhenthetrainentersthedepot.WhenthemanualandautomaticPAscomein,LCD imagewillcontinuetodisyandalltheimagesofthetrainwillkeepsynchronous.2.5.2LCDDynamicRoute2LEDbacklightLCDareinstalledatbothendsofeachsaloon(Installedonthetransparentpartitionare19”LCDandothersare24”LCD)fordisyingtheroutemapandtrainconfigurationinformation.Therouteandconfigurationinformationcanbesetthroughthedriver.Whenclosetothenextstationordestination,thedestination/stationwilldisyontheLCDroutemaptoremindpassengers.Figure12TherouteFigure13Thearrivalreminderoftheroute2.5.3MediaInformationTheybackcontrollerofthetrainwillprestoresomefilesandcontentsofsomeprograms.Thedefaultstorageofybackcontentsisabout4hours.Moreprogramcontentscanbestoredbasedontheredundantdiskcapacity.TheprogramfilesupportstheAVI/MP4format,whichusesthe compressioncodingformatisH.264/25frame,thebitrateis1M;audio:theaudiocompressioncodingformatisMP3withasamplingrateof44.1KHz.ItistheFullHD.Accordingtotheinformationdownloadedfor10hoursaday,itisestimatedthattheminimumamountofinformationtobestoredontheMPSserveris10hours×3600seconds3M/8=13500MB≈13.5Trainycontrollerwouldstoresomeprogramsinadvanceanddefaulttostoretheytimeof4hoursandstoremoreprogramsifthereismorediskcapacity.TheprogramsarefullHDswithH.264code.Ifcalculatedbytheinformationdownloaded10hoursadaytheminimuminformationneedstobestoredinMPSis:2.5.4MediaInformationDisMPSwillytheprogramsaccordingtotheorderoftheylist.Thelocalprestoredprogramsarearrangedintheorderoftheylistandtheyareyedaccordingtotheorder.Whenalltheprogramsareyedintheorder,theywillybackinthecircleagain.ThelocalprogramswillbeinterruptedwhenthefollowingsituationsPISreceivesinstructionstoyemergencyAfterfinishingtheemergencyying,thelocalprogramswillcontinuetoyfromwhereitstopsaccordingtotheorder.2.5.5yWindowThePIDSdisysinfullscreenbydefault(orswitchtothefull-screendisyafterreceivingthetrainoperator’scommand.)Figure14Pictureoffull-screendisUserscangenerateandedittheylistthroughPTU.s,picturesanddisyedinmultiplescreenshaveindependentyWhentheemergencyinformationneedstobeyed,thesystemwillswitchtodisyinsinglescreenwithrollinginformationatthebottom.Therollingdisyinformationshallincludetime,nextdestination,travellingspeed,temperature,etc.Figure15Pictureofrollingdis2.5.6BroadcastInformationArrivalinformationPIDSacquiresthetrainlineinformation(trainlinedirection,uplinkordownlinkandthenextstopinformation)fromPAsystem(throughthecommunicationinterfacetoPAsystem)throughlinkagetoPAsystem.Itwilldisytheprerecordedoreditedcontentsaccordingtothereceivedinformationofthenextstop(eg:door–openingsideandtipsfortransferringline).Meanwhile,itcandisypre-editedcontentsatthestopdisywindow(eg:stopintroduction,informationaboutimportantinstitutionsandshopstreETS2nearby).EmergencyinformationPAsystem(throughthecommunicationinterfacetoPAsystem)cansendinstructionstoPIDSincaseofemergency.Thesystemwillytheprerecordedoreditedcontentswhenreceivinginstructions.However,whenanemergencyneedstobeyed,theoriginalcontents(thelocal andthenextstopinformation)willbestopped.Theemergencyinformationycanonlystopwhenreceivingtheemergencycancelinstruction.Thenthesystemcontinuestoythenextinformation,thereal-timeandlocalWhenyingtheemergencyinformation,thesystemwillswitchtothesinglescreenmodeandLCDwilldisyinsinglescreen.Itwillrecovertotheoriginaldisymodewhentheemergencystateiscanceled.2.5.7TheGPSMapfunctionofThemapfilescorrespondingtoeachrouteareprestoredinPIDSsystem.Inadditiontodepictingthestation,thepicturecanalsodepicttheroutetrack,andthesystemsavesthelocationcoordinatesoftheroutetrack.PIDSsystemcanobtaintherealtimeGPSlocationcoordinate,routeandstationinformationfromtheinformationinterfaceofPAsystem.Thesystemselectsthecorrespondingpicturefileaccordingtotheroute,andaccordingtotherealtimecoordinate,theflashingpointofthecorrespondinglocationoftheroutetrackrepresentsthetrainlocation,thustorealizethefunctionofshowingthemovinglocationofthetraininreality.PictureisshowedasFigure AddedPIDSGPS2.5.8LogSystemhasacompleteloginformationrecordsonapplicationandoperation,forinthesameinterface.ThelogincludesthefollowingtypesofStartingtimeof Endingtimeof UpdatetimeStartingtimeof“arrival”information(XXstation)Endingtime “arrival”informationStartingtimeofemergencyinformationEndingtimeofemergencyinformationStartingtimeofmediaserverbroadcastThesystemhasthefunctionofexporting,backingupanddeletinglogsandcandeleteandcleanthelogsinthepredefinedcycleautomatically.ThesystemsETS2thesameMPSserversattwoendsofthetrainandtheyareinctivebackup.WhentheMPSmoduleatthemainenginefails,thatatthespareenginewillstarttowork,takingoverallthefunctionsofmulti-mediainformation FunctionofTrain-borneCCTVCCTVsurveillancesystemenablesthedrivertomonitorthesaloons,thecabs,thepantographandthebarsinthecab.4camerasaremountedinthesaloonand1inthecab.1cameraismountedinthebartomonitortheemergencyinthesaloonandactivityinthecab.Eachcabisinstalled2rearviewcameratomonitorthetform.1frontcameraissetinthecabtomonitorthetrackand1cameraattheexteriorpantographofMp.TLCDissetinthecabtodisythemonitoringsindoorsandoutdoors.Camerasinthecab/saloonareIPcameras.Thecamerascollectandencodethereal-timesignalandtransmitittothesaloonswitch.Thesignalwillbestoredinvehiclemediaserverthroughtrain-borneEthernetanddisyedonLCDinrealtime.Vehiclemediaserverisusedtostores.LCDdisyinthecabisanintegratedhostengine,thebuilt-inswitchmoduleanddecodemoduleofTLCDwilltransferthedigitalstreamingH.264fromdigitalsignaltoogsignalanddisy.2.6.1AcquisitionandTransmission andAudioInCCTVsurveillancesystem,thecameraisusedtocollect imagedatawithavalidpixelof1.3million.Thesystemstoresinformationsuchastrainlinenumber,imageacquisitiontimeandcameranumberto imagedata,encodes informationH.264compressioncalculationintheformofD1(704×576)andtransmitstothedisyinthetwocabs.Allthesarestoredinthehard2.6.2DigitalThemediaserverwillstoredatatothelocalharddriveafterreceivingalltheandaudiodatatransmittedbyIPcamera.Inordertoensureeasymaintenance,andrealizefunctionssuchasfilequery,ybackanddownload,fastyandrewinddownandsoon,namingsize,storagemechanismoffilemustberegulated.filesfilesarestoredinH.264streamingmediamode.Userscansetthetimelengthforthefile.Evenifthereislossofpower,theswillnotbelost.filestorageUndernormalcircumstances,aftersystemgETS2electricity,internalcameraskeepworking.MSkeepsstoringimagespickedupbycamerasincabsandcarriages.Image