联锁系统简介

InterlockingsystemoverviewInterlockingsystemisasafetycontrolsystemwhichisusedtotrainandtraintrafficcontrolinstationanddepot.Thesystemincludestherealizationoftheinterlockingrelationship,theestablishmentofaccess,controloftheswitchandtheopeningofthesignalmachine,aswellasaccesstounlock,inordertoensuretrafficsafety.Theinterlockingequipmentisdividedintomainlinestationinterlockingequipmentanddepotinterlockingequipment.Interlockingequipmentintheearlyuseofrelayinterlocking,andnowmoreuseofcomputerinterlockingsystem.Electricinterlocking

Computerinterlocking

6502ElectricinterlockingII-TYJLdualmachinehotstandbysystemTR9-TYJLtypethreetaketwofaulttolerantcomputerinterlockingequipmentDS6-11typedoublemachinehotstandbysystemDS6-20typethreetaketwosystem

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ThecompositionofComputerInterlockingSystem

Thecomputerinterlockingsystemiscomposedofhardwareequipmentandsoftwareequipment.Thehardwareincludesman-machineconversation,computerinterlockingcomputer,computersecurityinspection(foroperation,inspectionofthefaultcanbefoundincomputerinterlockingsafetyguide),microcolormonitor,centralizedcontroloftrackcircuitTaiwan,safetyrelayinputandoutputinterface,powersupplycabinetdedicatedcomputerinterlockingscreenandfieldsignalmachine,switchmachine,andotheroutdoorequipment.Thesoftwareisthecorepartofrealizationroute,signalandswitchinterlocklogic,consistsoftwoparts:oneisinvolvedintheinterlockingcomputingstationdatabase;twoistheinterlockinglogicoperation,applicationstocompletetheinterlockfunction.Thestationdatabaseincludesthestationassignmenttable,thestationinterlockingtable,thepushbuttonaccesstable,thestationdisplaydata,etc..Theapplicationiscomposedofapluralityofprogrammodules,systemmanagementmodule,clockinterruptprogrammanagementprogrammodule,saidinformationacquisitionandinformationprocessingmodule,operationcommandinputandanalysisprogrammodule,routingandswitchprogrammodule,signalopenprogrammodule,unlockprogrammoduleandstationcolormonitordisplaymoduleetc..

Characteristicsofcomputerinterlocking

Tofurtherimprovetheinterlockingcontrolfunctions.Thecomputerinterlockingsystemcompletelyoutofnetworkrelayinterlockingsystem,thustechnicallycanuselesshardwareinvestmentandplaytheroleofsoftware,someproblemsaredifficulttosolveeasilyovercomenetworkcircuit.Thecomputersendsoutthecontrolinformationandthescenesendsbacktherepresentationinformation,Savealotoftrunkcable,andmakeuseofopticalfibercabletobecomepossible.DisplaytraywithCRTscreendisplayinsteadofelectriccentralizedcontrolconsole,Canbetransmittedbythetransmissionchannelserial,cangreatlyreducethevolumeofthesection,simplifyingthestructure,easytouse,butalsocanbeusedinaccordancewiththeneedformore.Reliabilityandsafety.Thecomputersystemcanmaximizetheuseofsoftwareandhardwareresources,directlyrelatedtotrafficsafetyinterlocklogicprocessingandexecutionlinkusingredundancyandfault-toleranttechnology,soastoensurethereliabilityofthewholesystem,thesafetyindexishigherthanthatoftherelayinterlockingsystem.Greatflexibility.Thecomputerinterlockingsystembothhardwareandsoftwareareusedmodularstructure,differentsizeandnatureoftheoperationsofthestationorthestation,onlyneedtopreparethestationdata,choosedifferentmodulefunctionwithdifferentnumberandassembled.Whenthestationyardischanged,thecomputerinterlockingsystemusesthemethodofmodifyingthedata,andalmostnoneedtochangetheexistingcircuitandinterlockingprogramtomeettheneed.Facilitatesystemmaintenance.Mostofthecomputerinterlockingsystemiselectronicequipment,theseelectronicdeviceshavenomechanicalwear,sothedailymaintenanceamountissmall.Inaddition,thecomputerinterlockingsystemoftenhasperfectmonitoringphasefaultdiagnosisfunction,whichisconvenientforthemaintenancepersonneltoanalyzeandfindandtimelytroubleshooting.FunctionofcomputerinterlockingInterlockcontrolfunction:routecontrolsignal;openingandclosing;separateoperation,lockingandunlockingswitchDisplayfunction:stationbasicgraphicdisplay;thedisplaystatusofthefieldofsignalequipment;confirmtheattendantpressingaction;theworkingstateandinterlocksystemfaultalarmdisplay;theclockdisplay,Chinesecharactersetc.Recordstorageandfaultdetectionanddiagnosisfunction:thesystemcanbuttonoperation,staffon-siteequipmentandactionofdrivingoperationaccordingtotimesequenceautomaticrecordingandstorageonduty;theimagereproductionfunction;theapproachtoachievestorageandautomaticprocessing;theconcentrationdetectionandalarmfunctionThecombinationoffunctions:theuseofstandardizedcommunicationinterfaceboard,networkinterfaceboard,canbedirectlyconnectedwiththemoderninformationprocessingsystemfordataexchangeBasiccontentsandtechnicalconditionsofinterlockingThebasiccontentsinclude:topreventtheestablishmentofinterlockingwillleadtoconflictsofthelocomotiveandvehicleroute;musttrainortrainshuntingallswitchesarelockedinafteropeningdirectionandapproachconsistentposition;mustmakeroutesignaldisplayandestablished.Thebasictechnicalconditionsfortherealizationofinterlockingareasfollows:

1.Ontherouteofeachsectionofthefree(nocaroccupied)toopenthesignal.Iftherouteofacaroccupied,butitcanopensignal,itwillcauseconflictoftrainandshuntingtrainswiththeoriginalcarstop,thisisabsolutelynotallowed.Therefore,accesstothesignalbeforetheopeningoftheroadmustbechecked.

2.Intheapproach,theswitchcanbeopenedattheprescribedposition.Butifthewayintotheopensignalaboutturnoutopeningpositioniswrong,thenwillcausethetrainandshuntingtrainsintodifferentlinesorsqueezebadswitch,resultingintrafficaccidents.Therefore,therouteofthesignalopeningmustensurethattheaccesspointiscorrect.3.Onceopenthedoorswitchsignal,theroutemustbelockedattherequiredposition,andcannotmove.Whenthesignalisopen,therotationorlooseningofanypointsontheroutewillendangerthesafetyoftrainsandtrainsinoperation.

4.Thehostilesignalisnotclosed,notopendoorroutesignal;doorroutesignalafteropeningitshostilesignalmustbelockedintheclosedstate,cannotopen.Ifthetrainortrainshuntingmaycausecollisions,dangerousdrivingsafety.Therefore,accesstothesignalmustbeopentocheckandensurethattheenemysignalsintheclosedstate.

Computerinterlocking

Basicstructure

hierarchicalstructure

CentralizedcontrolstructureDistributedcontrolstructureRedundantstructureReliabilityredundancystructureSafetyredundancystructureHierarchicalstructureofcomputerinterlockingAcontrolpanel,alargescreendisplayComputerinterlockingoperationandmeasurementandcontrolelectroniccircuitOperationdutyroomOutdoorsceneSignalmachineroomInputandoutputadaptercircuitComputerinterlockingcontrolstructureCentralizedcontrolanddecentralizedcontrolstructure.Thecentralizedcontrolsystemiscomposedoftwoparts,indoorandoutdoor,whichischaracterizedbythatthefunctionsofeachlayerofinterlockingsystemarecompletedbyacomputer.

1.Controlconsole2.Interlockingprocessor3.Input/outputinterface4.Thepowersupplyequipment5.ThefieldofsignalequipmentConsoleExpressinformationOperationinformationInterlockingprocessorstatusinformationcontrolcommandInput/outputinterfaceinoutThedistributedcontrolstructureischaracterizedbythatthefunctionofinterlockingsystemisdividedintoseveralfunctionalmodules,whicharerelativelyindependentandconnectedbythestructure,andareprocessedbythecorrespondingcomputer.Becausethedivisionofthefunctionmoduleisnottheonly,sotheconcretestructureformisvariousConsoleMonitorandcontrolmachineInterlockingmachineTargetcontrollerContactwithothersystemsRedundantstructureofthesystemDualcomputerredundantsystemstructureofmonitoringmachineThemanualswitchcontrolissimple,whentheoperatorfoundfault,manualswitch,thestandbymachineputintouse,theautomaticswitchcontrol,faultdetectionmustbeuninterruptedworkmachine,onceafaultisfound,immediatelyswitchtostandbyforup.inputSwitchMonitorhostMonitorandcontrolmachineDoublemachineredundantsystemstructureofinterlockingmachineConsideringthesafetyoftheassemblyoftwosetsoffunctionexactlythesame,buttheindependentversioniscompletelydifferentprogrammingmethodsofinterlockingprogramoneachinterlockingmachine,withasinglesequentialdoubleprocedureandcomparedtheresultsofthetwooperations("and"),thecomparatordeterminesthesame,thatinnormaloperation,canbeusedasasystemoutput.Whenthemachineisnotinlinewiththemachine,themachineisreadytobepoured.inputInterlockinghostInterlockmachineProgramAProgramBProgramAProgramBcomparatorcomparatoroutputSwitchThreemachineredundantsystemstructureofinterlockingmachineThreesetsofinterlockingcomputerperformanceisidenticalandtheimplementationofthesamesetofinterlockingprocedures,theoutputbythevoteofthevote,therearetwosetsofthesameoutput,thevotehasthecorrectoutput,alsoknownasthethreetaketwostructure.Thevotingmachinecannotdetecttheerror,buttheprobabilityisverysmall,onlywhenthetwosetsofcomputershavethesamefaultsandproducethesameoutputinformation.inputoutputInterlockingAmachineInterlockingBmachineInterlockingCmachine

Threelevelcontroloftrainoperation

Thetrainoperationinurbanrailtransitinterlockingsystemadoptsthreelevelsofcontrolmode,thatis,thecentrallevelcontrol(ATSautomaticcontrol),remoteterminalcontrolandstationworkstationlevelcontrol.CenterlevelDegradedModeStationRoutecontroltrainCenterlevelcontrol.Automatictrainmonitoringmode,thetrainroutesettingcommandisissuedbytheautomaticroutesettingsystem,anditsinformationcomesfromthetimetableandautomaticadjustmentsystem.Remoteterminalcontrol.Whenthecommunicationbetweenthecontrolcenterandthecontrolcenterisincommunicationwiththeinferiorequipment,thetraindriverinputthedestinationcode,thetrainsendingsystemsendsoutthetraininformation,andtheremoteterminalgeneratesthecontrolcommand.Stationstationlevelcontrol.Thetrainstationinroutecontrolfordutystationstaff,attendantthroughinterlockingareaisexpectedtoapproachtheinterlockcontrollogicsystemsuchasrouteinspectionisnotoccupied,didnotestablishtheroute,thenautomaticroutesetting.

Multitrainroute

Approachisdividedintosingleandmultipletrainroutetrainroute,thisismainlybecausethesubwayintervals,trafficdensity,trainrouteingoodconditionsbythesafeoperationofATPsystemprotection,soinawaythatmayoccurinmultipletrainsinoperation.AsshowninFigure2,S3-S1forthemultitrainroute,aslongasthemonitoringareaisfree,withtheS1asthestartingendoftheroutecanbedischarged,S1opennormaltrafficlightsignal.MonitoringareaMonitoringareaifthereisatrainoperationintheroute,themanualcancellationoftheroute,onlytocancelthefinalarrangementoftheroutetothelocationoftheroutebeforethetrain,andtherestoftheroutethroughthetrainbeforethenextrelease.Thepremiseofthemanualcancellationofthemultitrainrouteisthatthefirsttrackcircuitsoftheroutemustbefreeoflogic.S5~S7forthetrainroute,train1byTC2,TC3,TC4,the3tracksectionnormaltounlock,then,canbearrangedinsecondroutesofS5~S7,S6opennormalsignallights.Ifthetrain1tocontinuetomoveforward,thenthroughthesectionTC6,TC5,TC7,these3sectionsdonotunlock,onlyafterthetrain2throughthe3sectionstounlock.Ifthesecondroutearrangement,butalsocanceled,thencanonlycancelfromthebeginningoftheendofthesignalmachineS6totrain1betweentheroute,andtherestoftheroutewillfollowthetrain1throughtheautomaticunlocking.TracingapproachTrackingapproachisakindofautomaticroutefunctionofinterlockingsystemitself.Thetrainsignalapproach,occupancytriggering(tr