PLC建筑电梯控制系统中英文对照外文翻译文献.docx
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PLC建筑电梯控制系统中英文对照外文翻译文献
(文档含英文原文和中文翻译)
中英文对照外文翻译文献
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,openingandshutdowntheelevatordoorsignalsetc.TheDCpowerwhichisprovidedtoPLCcanbeusedasindicatorlightpower.ThePLCoutputpointscanbedirectlyusedtocontroltransducersforthepurposeofelectricalmotor’spositiveturnandreverse,stopandcontroleachsegmentvelocityandsoon.OMRONcompany’sC200HEseriesPLChasbeenselectedasmajorcontrolconfigurationaccordingtotheinput/outputpointsandthelengthofuser’sprogram.Ontheotherhandwealsoconsiderthatthesystem’sfunctioncanbeexpandedinthefuture.C200HEseriesPLC,whoseperfectfunctionandstrongreliability,canmeetthesedemandsatpresent.
Moreover,inputandoutputdevicesareneededinelevatorcontrolsystem,besidesthePLC,system’smajorcontroldevice.
PartofsignalhookupsoftheelevatorelectriccontrolsystemisshowninFig.2.
Thecontrolcabinetisthecontrolcenter,fromwhichwecansendoutvariouscontrolcommands.Thecontrolcabinetoftenwasinstalledintheelevatorroom.Theelectricdevicesandsignalsystems,forexamplethecontactors,relays,capacitances,resistors,rectifiersandtransformersetc.,arecentralizedinthecontrolcabinet.ThePowerofthecontrolcabinetwasimportedfromthechiefpoweroftheelevatorroom.Thispowerwasalsointroducedintocontrolpanelbysoftcablesandwaslinkedwitheachcontrolbuttons.Thepowerlineswhichwasderivedfromcontrolcabinetwasdeliveredtotowelectricmotors.Otherscontrollinesandsignallineswereseparatelysenttoeachfloorjunction
Ⅳ.Programdesign
Thedesignincludestwoparts:
hardwareandsoftware.Thehardwaredesignisthebaseofsoftware.Consideringthatthecontroldemandsarerelativelycomplex,wedesigntheprogramsseparatelyaccordingtothecontrolfunction.Furthermore,wefollowtheprincipleasfollows:
Whentheelevatorisascending,theascendingdemandsarepriortootherdemands;Whentheelevatorisdescending,thedescendingdemandsarepriortootherdemands.TheSequentialFunctionChart(SFC)isadoptedduringtheboxestoformelevator’sexecutivecircuitrydesign.Itisamethodspeciallyusedinindustrialsequentialcontrol.TheSFCmethodcandescribethesystem’sworkingprocedureingreatdetail.Forexamplethereisathreelayersintelligencebuilding.Asubprogram,thecallingfromthethirdflooraselevatorinthefirstfloor,isshowninFig.3withSFC.
WhenallSFCaredrawnandI/Oaddresslistsarepresented,wecanconverttheSFCtoLadderDiagram(LD).Consideringthestrictdemandsfortimeandforlockedeachother,weintroduceworkingbitstorememberworkingsteps.Weshouldwriteouttheworkingbitscontrolprogram,whichcanlinktogethereachstepandmakethepreviousstepasthenextsteprestrictioncondition.Thustheactualoutputsarethelogiccombinationoftheseworkingsteps.
Ⅴ.Conclusion
Thesystemprogramhasbeendebuggedcompletelyatpresent.Simulatedexperimentenunciatesthatthedesignmethodisviable.ApplicationofPLCintheelevatorcontrolsystemisaneffectivemethod.Itcanmakethepersonneloftheindustrymanagementcentertolong-distancemonitorandcontroltheelevatorincontrolcenter,toconnecttheelevatorcontrolsystemwithintelligencebuildingindustrymanagementsystembyEthernetorspecial-purposenetworksuchasLonWorks.Theelevatorworkingstatecanalsobetimelywatched.Thesenotonlycanrealizescientificcentralizedmanagementoftheelevator,butalsocanlowertheelevatormaintenancecostsetc.Itisoneofthedevelopingdirectionofintelligencebuildingelevatorcontrolsystem.
References
[1]Liangjianqi,Duanzhengang,andHewei.Communication
ImplementationofPLC-BasedElevatorRemoteMonitoringSystem(inChinese)[J]JournalofBeijingTechnologyandBusinessUniversity2003,21
(2):
18-21
[2]MaHongqian,ZhangXin.ApplicationofPLCinHigherBuildingElevatorControlSystem(inChinese)[J]JournalofLiaoningHigherVocationalTechnicalInstitute2002,4(5):
86-88.
[3]CuiGuangyuan.TheApplicationofPLCtoElevatorControl.(inChinese)[J]JournalofDongbeiElectricalPowerTechnology2003,(7):
50-52.
AuthorBiographies
ThefirstauthoriscurrentlyworkingasateacherinTaiyuanUniversityofTechnology.Hercurrentresearchinterestsincludesignalprocessing,intelligencecontroletc.
ThesecondauthoriscurrentlyworkingasateacherinTaiyuanUniversityofscienceandTechnology.Hercurrentresearchinterestsincludetelecommunication,intelligencecontroletc.
附录B外文翻译
PLC在智能建筑电梯控制系统中的应用
摘要:
本文主要讨论了智能建筑系统的一个子系统:
电梯控制系统。
PLC具有强抗干抗能力等优点使得电梯工业一次又一次的将PLC应用于电梯控制系统,以取代传统的使用继电器控制电梯系统。
PLC在电梯控制系统应用,降低了故障率,并有效地提高了电梯运行的可靠性与安全性。
系统的结构简单、紧凑.电梯控制系统的工作原理是:
首先将使用者的输入命令发送到PLC中,然后PLC根据系统的要求,发出控制信号以驱动外围设备,电梯就可以进行相应的动作了。
本文选择omron(欧姆龙)公司的C200HE系列的PLC,介绍了电梯控制系统的外围接线电路,并解释该控制装置的功能。
最后介绍编程,通过模拟实验证明了该方案是切实可行的。
它可以使工业管理中心的工作人员在远距离的控制中心就可以实现对电梯的监测和控制,通过以太网或个人专用网络,如