PLC建筑电梯控制系统中英文对照外文翻译文献Word格式.docx
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ApplicationofPLCintheElevatorControlSystemofIntelligenceBuilding
Abstract:
Thepapermainlydiscussesonesubsystemofintelligencebuildingsystem:
theelevatorcontrolsystem.ThePLCstrongabilityininterferenceandsoonmakestheelevatorindustryoneafteranothertoapplythePLCtotheelevatorcontrolsysteminordertoreplacetherelaybeingusedintraditionalelevatorcontrolsystem.TheApplicationofPLCintheElevatorcontrolsystemreducesthebreakdownrateandefficientlyimprovestheoperatingreliabilityoftheelevatorwithsafety.Thestructureofsystemisalsosimpleandtightlypacked.Theworkingprincipleoftheelevatorcontrolsystemis:
ThespotcontrolinformationissendintothePLCfromthecustomerinputdevicesfirstly,thenthePLCcontrolcabinetisrequiredtosendoutthecontrolsignaltodrivetheequipmentsaccordingtothesystemdemands.Theelevatorcanthenproceedthehomologousactionaccordingtothecontrolrequest.ThepaperselectsOMRONcompany’sC200HEseriesPLC,introducingpartsofsignalhookupoftheelevatorcontrolsystemandexplainingthefunctionofthecontrolcabinet.Lastlytheautomationprogrammingisintroduced.Simulatedexperimentsenunciatesthatthedesignmethodisviable.Itcanmakethepersonneloftheindustrymanagementcentertolong-distancemonitorandcontroltheelevatorincontrolcenter,toconnecttheelevatorcontrolsystemwithintelligencebuildingindustrymanagementsystembyEthernetorspecial-purposenetworksuchasLonWorks.Theelevatorworkingstatecanalsobetimelywatched.Thesenotonlycanrealizescientificcentralizedmanagementoftheelevator,butalsocanlowertheelevatormaintenancecostetc.Itisoneofthedevelopingdirectionofintelligencebuildingelevatorcontrolsystem.
Keywords:
PLC;
intelligencebuilding;
elevatorcontrolsystem;
workingprinciple;
programdesign
Ⅰ.Introduction
In1980sThefirstintelligencemansionhadbeencompletedinAmerica,thenintelligencebuildinghasbeenabroadlytakenattentionsbythewholeworld.Theconceptofintelligencebuildinghasbeenputdifferentmeaningsalongwiththedevelopmentofsociety.Theearlystageintelligencebuildinghadbeenthoughtthatitisequaltotheintelligentmansion,butnowtheintelligencebuildingnotonlyincludestheintelligencemansionsbutalsoinvolvesintelligenceresidentialdistricts.Thispapermainlydiscussesonesubsystemofintelligencebuildingsystem:
theelevatorcontrolsystem.
Inintelligenceresidentialdistrictstheenterprise’sinformationmanagingsystemmainlytakeschargeofthethingswhichrelatedtothedailylife,forexamplesupervisingthedistrictequipments,managingvehicles,disposingcriticalsituationsandsoon.Theelevatorsupervisingandcontrolsystemisalsonecessarytotheintelligenceresidentialdistricts.Howtomakepeoplefeelsafe,stableandcomfortableandhowtosaveenergyresourcesandprotectenvironmentsandsoonarethebasicrequirementstotheelevatorcontrolsystem.
PLCisacommonindustrycontroldevice.Itisaspecialindustrycontrolcomputerwhichhastheperfectfunctionandsimpleframe.ThePLCstrongabilityininterferenceandsoonmakestheelevatorindustryoneafteranothertoapplythePLCtotheelevatorcontrolsystem,inordertoreplacetherelaybeingusedintraditionalelevatorcontrolsystem.TheApplicationofPLCintheelevatorcontrolsystemreducesthebreakdownrateandefficientlyimprovestheoperatingreliabilityoftheelevatorwithsafety.Thispapermainlydiscussestheelevatorcontrolsystem’sworkingprinciples,thesystem’ssoftwareandhardwarerealizationmethodsandsoon.
Ⅱ.TheWorkingPrincipleofElevatorControlSystem
InFig.1theHardwareStructureGraphofElevatorControlSystemispresented.
Fig.1TheHardwareStructureGraphofElevatorControlSystem
TheWorkingPrinciplesofElevatorControlSystemarestatedasfollows:
ThespotcontrolinformationissendintothePLCfromthecustomerinputdevicesfirstly,thenthePLCcontrolcabinetisrequiredtosendoutthecontrolsignaltodrivetheequipmentsaccordingtothesystemdemands.Theelevatorcanthenperformthehomologousactionaccordingtothecontrolrequest.Therearevelocityfeedbackdevicesinsystem,whichadoptmeasurevelocitygeneratorstoprovidetheelevatorvelocitiesandgenerallyareinstalledinthetailoftowmotors.Sothisisafeedbackcontrolsystem,whichcanimprovethesystem’scontrolprecision.
Ⅲ.TheHardwareConfigurationofControlSystem
Itisnotnecessarytodointerfacecircuitintheelevator’sPLCcontrolsystem.WhatweshoulddoistosendthesignalstoPLCdigitalinputterminals.Thesignalsincludeinsideandoutsidecallingsignals,floorlocationinspectingsignals,limitinglocationsignals,openingandshutdowntheelevato