翻譯部分英文原ElevatorPLCof2nine-storeyelevatorscontrolsystemforresidentialbuilding.TheadoptsPLCasusesaparallelconnectionrulebasedwaitingtime"toruninparallelmode.ThepapertheprinciplemethodofthecontrolsysteminIttheladderoftheofsystem.Thesystemperipheralcircuitandthethatitenhancedthereliabilityofelevators.Withoftechnology,thebuildingistallertallerandverticalinbuildings.Theyareresponsibletopassengers,living,workingorvisitingintheefficientlydestinations.Sothesystemisessentialinthesafeoperationofelevator.Ittheintoatfloors,whentoorclosethedoorandifthereasafety-criticalThetraditionalsystemofelevatorsrelay-controlledsystem.Itdisadvantagessuchascircuits,highfaultratiodependability;andgreatlyaffectstheelevator’srunningbyanhavecontrolsystemofarelay-controlledinresidentialbuildingbyusingPLC.Theresultthesystemreliableoperationandformaintenance.andrealizationofPLCcontrolindetail.2.SystemTheofelevatorismanagemovementofanelevatorresponsetouser’srequests.Itmainlycomposedofparts:2.1.ElectricdrivingsystemTheelectricpowerdrivingincludes:theelevatorcar,thetractionmotor,doorrelevantHereweadoptedanewtypeofLCseriesACcontactorstoones,andusedPLC’scontactstheplentyofintermediaterelays.Thecircuitsoftractionarereserved.Thustheoriginalcontrolcabinet’svolumeandhighnoiseefficiently.systemTheelevator’scontrolsignalsaremostlyrealizedbyPLC.Theinputmodes,operationcontrolsignal,etc.AllcontrolfunctionsoftheelevatorsystemarePLCprogram,suchasregistration,displayeliminationofhall-callsorcar-calls,positionjudgmentofcar,chooselayeroftheelevator,etc.ThesignaldiagramofelevatorisinFigure1.1PLCdiagramThegoalofofthecontrolsystemistocontrol2elevatorsinaresidentialForeachisaatcanusesensorstolocateoftheelevatorcar.Thedoorcanclosedadoormotor.Thereare2onthethatcancontrolsystemthedoor’sposition.Thereisanothersensoronthedoorcandetectobjectswhenthedoorisclosing.Theelevatorcar’supdowncontrolledatractionmotor.Everythefirstandfloor,hasaofthatelevatorismovingupdown.Everyfloor,hasLEDtodisplaythelocationoftheThefirststepforofthecontrolistorequirements.Informally,thebehavioris(1)Runningwithsinglehasthreeoperationnormalmode,fire-protectionmodemaintenancemode.Themaintenancemodehashighestpriority.Onlytheiscanothermodesnextfire-protectionelevatortofloororstationimmediatelywhenfireswitchacts.Theshouldtonormaloperationmodefireswitchreset.Undernormalmode,thesystembasictaskistocommandupstartopenandclosedoor.Butishasconstraintsasfollows:elevatorhasasetofonforfloor.Thesetheyandcauseelevatorvisitthecorrespondingfloor.Theilluminationisthecorrespondingfloorvisitedbyfloor,exceptfirstthetopfloor,hastwobuttonsonfloorrequestanup-torequestdown-elevator.Thesebuttonswhentheyiscanceledwhenelevatorvisitsthefloor,thenindirection.Thebuttonsoncarpanelthefloorcontrolusedtocontroltheelevator’smotion.ThecannotpassafloorifapassengertooffThecannotstopatfloorunlesssomeonetooffThecannotchangeuntilithasservedallindirection,hallcallbeservedbyagoinginthedirection.Ifanhasnorequests,itremainsatcurrentwithitsdoorswithtwoInthissituation,thereareelevatorsservethesimultaneously.Itrunsto9amand5pmto7pmeveryWhenelevatorlevel,itwillifthestoprequirednot.Itwillatisrequired.Atsametime,toofstops,theoperationoftwowillfollowacertaindispatchingprinciple.Anelevator’tstopatfloorifanothercarisalreadystopping,orbeenthere.Thenormaloperationofelevatorsisbyofitselectricdrivingsystemlogiccontrol3.Softwaredesigntonatureoftime,calllocationstheofsystematypicalsystem.HerewemethodwithsiemensPLCS7-200CPU226extensionmodules.There46inputoutputinthesystem.TheI/OinTable1OutputAboutmethodtoladderprograms.TheinformationbetweenmodulesisbyintermediateofThewholemainlycomposedofmodules:hall-callanddisplayregistrationdisplaymodule,thesignalhall-callmodule,theelevator-locationmodule,thefloordooropen/closemaintenancemoduletheunderparallelrunningmode.Theoftypicalisdescribedfollows:3.1.Hall-callregistrationandaretwokindsofcallsanelevator:hall-callabuttononthefloorpanel,thewillbewillilluminate.Thishall-callregistration.Whenapressesincar,willberegisteredwithlampiscalledcar-callregistration.Figure2theladderdiagramofupregistrationandself-lockprincipleisguaranteethecalls’continuousdisplay.2uphall-callregistrationdisplay3.2.ThethecallsHererulesareused.AsinM6.1relaysinthesignalof9thfloorrelaydenoteselevatordriver’soperationsignal.Whenthereisainsignaloffloorwilloutput.Whentheisbythedriver,thehall-callswillnotbeserved.Andthecannotpassaflooratwhichapassengerwishesto3.3.ThecancellationofthecallsTheprogramofmoduletheresponsewhichhavethesamedirectionasthecar’sdirection,andwhenahallitsregistrationwillbeladderdiagramofuphall-’cancellationisinFigure4.3ofthe4cancellationofInistheupflagofthecurrentdirectionofelevatorisup,M4.0’scontactsclosed;onthecontrary,whenthecurrentdirectionoftheelevatordown,M4.0’scontactsdenotescar-calls’stoppingsignaloffloor2tofloorprogramhastworesponsewhenitwhenadownisserved,itsWhenelevatormovingup,thefloor’sdownhall-callitbyisnotregistrationisThecancellationofdownhall-callsiswithhall-calls.3.4.Elevator’sdirectionTheelevatorbemovinguporontheofhall-callsfollowinginFig.5illustratesthatwillup.5UpmovingoftheFigure5thatwhenfloorishigherthantheelevator’scurrentlocation,theelevatorwillgoup.Heretherelayusedup-movingtheismovingup-movingilluminated,soon.Whentheup-movinglampofftimerM4.0isdisconnected,thedisplayusedM4.0toreplacewhichcanthecancellation’sreliability.’sfloor-stoppingFigure6showstheladderdiagramtheelevator’sinFigure6,M6.4isflagoffloor-stoppingissentbythedriver.M7.0isthefiresignalbyfireisforcedspeedchangingWheneitherofthesecontactssystemsendoutsignal.4.MinimumwaitingtimeIntrafficofelevatortypesoftaskusually.Theonethebasicfunctiontocommandeachelevatortomoveuporstoporstarttoandcloseothercontrolofofelevators.Theofasystemincalls,shouldbe:toprovideevenfloorinminimizethebyforservice;totimebytomovefromonefloortoanother;toserveaspassengersasingiventime[1].Figure6Theelevator’s-stoppingareforelevator’sgroupNearest-neighborAlgorithm[2],whichtheelevatoralwaystherequestAlgorithm[3]whichbythetrafficofsystemwithfloortotheelevator;andrule,whichanelevatoronlyoddotheronlytheevenfloor.TheAlgorithmminimizesthelengthoftheelevator’semptymovetonextrequest.itusuallyhasverysmallindividualcanbecomequitelarge[2].TheAlgorithmusuallyusedinbuildingswhichhastraffictheofficebuildingatlunchtime.toshoppingmall,trafficflowofresidentialbuildingsrelativelyloweveninfloor.Secondly,peopleusuallythinkofpurelyfunctionaltheexperienceofridingelevatorisformostofexistimmensetoallConsideringalloftheminimumtime”algorithmtorealizethe2elevators’parallelrunning[4].4.1.EvaluationfunctionThegoalofthe“minimumwaitingtime”algorithmistotheeachelevator’sresponsetimeaccordingtoallthewhichhasshortesttoWhenasystemoutfunctionofeachaccordingthefunctionJ(*)=Min[J(1),J(2),…,J(n)]

(1)(2)J(i)isevaluationindexofeachelevator;Tr(i)denotesthetimeofmovingtocorrespondingthecallfromfloor;To(i)denotesaccelerationanddecelerationtimeoffloor-stoptheelevator;Td(i)denotestheaveragetimeoftheelevator;andKistheofhall-callsandwhenahall-callasameKcalculatedonetime.ofminimumInequation(2),Kisvalue,ToTdcanbebymeansofTtheaveragetimeofpassingbythefloorsoftheelevatorfromfloorhall-callfloor.IntocalculatetheLvalue,wethe2elevatorsABrespectively;YA,YBdenotesthecurrentfloorofAandBisthekeyvaluewhenahall-callbuttonispressed,andH=floorofWedefined4tablesforthePLChall-callregistrationtable,downhall-callregistrationregistrationofAregistrationtableofB.Whenacertainbuttonfloorvalueisincorrespondingtable.HerewetakeelevatorAasanexample.First,definethevariableMA,MBMW.WhereMA,MBdenotesextremevaluecar-callswithsamedirectionofAorB’sWhenelevatorAMAisthemaximumincar-callregistrationA;whenAisdown-moving,setMAisequaltominimumvaluecar-calltableMWvalueofhall-callswithsamedirectionofA’sWhenAup-movingup-hall-call≥YA,setMW=0;otherwise,setistheminimuminup-hall-callA.WhenelevatorAisup-hall-callvalue≤YA,setMW=0;otherwise,setequalmaximumindown-hall-callregistrationdetermineLtoYA,H,MA3Whenthehall-call’sdirectionisoppositetovatorA’smovement:L=|YA-MA|+|MA-H|(3)Whenthecall’sdirectionsameaselevatorA’smovementandisinthefrontofelevatorA:(3)Whenthehall-call’sdirectionissameastheelevator’smovementandisintheofA:L=|YA-MA|+|MA-MW|+|H-MW|(5)Soi-floor’sminimumwaitingtimecanbefollows:Time(i)=TL(i)+KTd(i)+KTo(i)i=1,2,...,n(6)Whenthecallschangeofelevators,thecalculatestheminimumofelevator.Thenitallocatesthecurrenttothewhichhastheelevatorhasvalue,thenthepriortoA.Whenelevatorornotinservice,thecanexitthedispatchingtoasingleelevatormode.withsinglemode,theparallelmodeismainlydifferentatprocessingabouthall-calls.Theusescollectivemethod,andthelatterusesdispatchrulewithcontrolHereistobuilding,sowechoosetwoS7-200PLCs(CPU226)andModulesthebyusingPPIProtocoltothecommunicationbetweenThePPIcommunicationmode,soAelevatorBthecommunicationprogram,the2canexchangethemassagesuchthecurrentorcar-callsbyusing“minimumwaitingtime”algorithm,thesystemrealizestheoperationelevators.Figure7ladderofcar-callsvaluecalculationofA.InFigure7,VB121istheregisterofelevatorA’sfloor,Q3.1isup-movingofthecar-callsextremeinVB120.

valueis7car-callsvaluecalculationofA5.ConclusionsInthispaper,weantheofnewhasforyear,anditsoperationscenariosareasfollows:(1)Downtrafficconditionconcernspeopleofinbetween7amto9am.–Peakthebuildingbetween5pmto7pm.Itdayfrom0:00thetwoabove.Andinthissituation,thereiselevatorrunning.Theresultsviaanaveragemaximumtime(bothininTables4.maximumwaitingtime(beforetorunningtheaveragewaitingtimewaitingtimeofdownpeaktheuppeakverylongerhaveofthesystem.[1]RicardoGudwin,FernandoGomide,Marcio(1998).FuzzyGroupControllerWithAdaptation”.IEEEWorldonComputationalIntelligence.Vol.12,No.5,pp.481-486.[2]PhilippFriese,JorgRambau(2006).ofsystemswithreoptimizationbasedset-partitioningmodels”.DiscreteApplied[3]ZhengHuiqiao,YeChangming.(2001).“TheonDynamicAlgorithmEvolution”.ComputerEngineeringApplications,No.22,pp.58-61.[4]XiaodongZhu,QingshanZeng(2006).ElevatorGroupControlAlgorithmforMinimumWaitingTimeOnPLC”.JournalofHoistingandConveyingpp.38-40中文譯基于PLC電梯控制統(tǒng)的設(shè)計(jì)本文介紹了二組9層電梯的住宅樓宇控制系統(tǒng)的發(fā)展。該控制系統(tǒng)采用可編程控制器作為控制器并使用根“最低等待時(shí)間并聯(lián)調(diào)度規(guī)則在并行模式下運(yùn)行2臺(tái)電梯。本文給出了PLC控制系統(tǒng)的基本結(jié)構(gòu)，控制原理和實(shí)現(xiàn)方法的細(xì)節(jié)。同時(shí)還介紹了改系統(tǒng)在關(guān)鍵方面的梯形圖。該系統(tǒng)具有簡(jiǎn)單的外圍電路，其運(yùn)算結(jié)果表明它增強(qiáng)了電梯的可靠性和性能。1介紹隨著建筑技術(shù)的發(fā)展建筑物越來(lái)越高電梯已成為在高層建筑物中的重要的垂直運(yùn)輸工具他們負(fù)責(zé)運(yùn)送在高樓里生活工作或者訪問(wèn)的乘客更舒適有效的到他們的目的地因此電梯控制系統(tǒng)是在保證每個(gè)電梯順利和安全的運(yùn)行的必要條件告訴了電梯在打開(kāi)或關(guān)閉門(mén)和如果有一個(gè)安全的關(guān)鍵問(wèn)題是為了什么停留在平層。傳統(tǒng)的電梯電氣控制系統(tǒng)是繼電器控制系統(tǒng)。它的缺點(diǎn)，例如復(fù)雜的電路，高故障率和低可靠性，并大大影響了電梯的運(yùn)行質(zhì)量。因此，由企業(yè)委托，我們已在一住宅樓的電梯使用PLC來(lái)改進(jìn)電氣控制系統(tǒng)。結(jié)果表明，改革了的系統(tǒng)運(yùn)作可靠，易于維修。本文詳細(xì)介紹了的實(shí)現(xiàn)電梯的制系統(tǒng)的基本結(jié)構(gòu)制原則和方法。．系統(tǒng)結(jié)構(gòu)該電梯控制系統(tǒng)的目的是要按用戶的請(qǐng)求去管理電梯的運(yùn)動(dòng)響應(yīng)主要由兩部分構(gòu)：電力驅(qū)動(dòng)系統(tǒng)包括電梯轎廂引電機(jī)門(mén)機(jī)剎車機(jī)制和有關(guān)開(kāi)關(guān)電路。在這里，我們采取了新型系列交流接觸器以取代舊的并且用PLC的接觸器來(lái)代替大量的中間繼電器牽引電機(jī)的電路被保留因此有效的客服了原控制柜的缺點(diǎn)，如大體積和高噪聲。信號(hào)控制電梯的控制信號(hào)主要是通過(guò)PLC實(shí)現(xiàn)的。輸入信號(hào)是：操作模式，操作控制信號(hào)，汽車電話，大廳唱出，安保護(hù)信號(hào)，門(mén)打|關(guān)閉信號(hào)和流平信號(hào)等。所有的電梯系統(tǒng)的控制功能都是由PLC程序?qū)崿F(xiàn)的，如外呼叫和內(nèi)呼叫信號(hào)的登記，顯示和消除，電梯轎廂位置的判斷，選擇電梯的層和方向等PLC的電梯信號(hào)控制系統(tǒng)圖結(jié)果顯示在圖1圖1PLC信號(hào)控制系統(tǒng)圖需求該控制系統(tǒng)的發(fā)展目的是在一個(gè)住宅樓控制2電梯。對(duì)于每一個(gè)電梯在每一個(gè)樓層上都有一個(gè)傳感器我們可以利用這些傳感器來(lái)定位電梯轎廂的當(dāng)前位置電梯轎廂門(mén)可以用門(mén)電機(jī)來(lái)開(kāi)啟或關(guān)閉在門(mén)上有2傳感器可以通知有關(guān)的控制系統(tǒng)門(mén)的位置門(mén)上還有另外一個(gè)傳感器可以當(dāng)門(mén)是關(guān)閉時(shí)去檢測(cè)對(duì)象梯轎廂的向上或向下運(yùn)動(dòng)時(shí)由一個(gè)牽引電機(jī)控制的除了第一層和頂層每層都有一對(duì)表明電梯向上或向下移動(dòng)的方向燈每層樓都有一個(gè)7段LED去顯示電梯轎廂的當(dāng)前位置。電梯控制發(fā)展的第一步是確定基本要求。非正式的，電梯行為的定義如下：1一個(gè)電梯運(yùn)行一般而言，一部電梯運(yùn)行狀態(tài)有三種：正常模式，防火保護(hù)模式和維修式。維護(hù)模式具有最高優(yōu)先級(jí)。只有維護(hù)模式是可以取消其他運(yùn)作模式的實(shí)施。其次是防火保護(hù)模式下當(dāng)防火開(kāi)關(guān)動(dòng)作時(shí)電梯必須立即返回底板或基站當(dāng)火開(kāi)關(guān)復(fù)位時(shí)電梯應(yīng)轉(zhuǎn)向正常運(yùn)作模式在正常經(jīng)營(yíng)模式下控制系統(tǒng)的基本任務(wù)是命令每個(gè)電梯上下移動(dòng)停止或啟動(dòng)并打開(kāi)和關(guān)閉門(mén)但是有一些行為約束如下：每個(gè)電梯在轎廂控制面板上有按鈕每層對(duì)應(yīng)一個(gè)當(dāng)這些按鈕被按下并導(dǎo)致電梯訪問(wèn)相應(yīng)的樓層時(shí)照亮當(dāng)電梯訪問(wèn)了對(duì)應(yīng)的樓層是光照被取消每了除第一層和頂層每層在樓層上的控制面板上都有兩個(gè)按鈕一個(gè)請(qǐng)求電梯上行另一個(gè)請(qǐng)求電梯下行當(dāng)這些按鈕被按下時(shí)照亮當(dāng)電梯訪問(wèn)了對(duì)應(yīng)的樓層是該照明取消然后再按所需的方向動(dòng)作在轎廂的控制面板或樓層的控制面板上的按鈕式用于控制電梯的議案的。如果乘客要出這層電梯，那么電梯無(wú)法直接通過(guò)這個(gè)樓層。如果沒(méi)有人要在這個(gè)樓層出電梯，那么電梯不能停在這個(gè)樓層。電梯直到它已送達(dá)在目前的方向行駛的機(jī)上所有乘客不能改變方向當(dāng)電梯在行駛時(shí)不能響應(yīng)相反方向的呼叫。如果電梯沒(méi)有請(qǐng)求，那么仍保持其在當(dāng)前樓層上并且門(mén)關(guān)閉。2）平行運(yùn)行的兩部電梯在這種情況下，有兩部電梯同時(shí)為大樓服務(wù)。它們每天在上午七時(shí)至上午九時(shí)和下午五時(shí)至晚上七時(shí)運(yùn)行。當(dāng)電梯到達(dá)的平層時(shí)，它將檢測(cè)停止是否被請(qǐng)求。它將停在停止被請(qǐng)求的一層。同時(shí)，為了平衡停止次數(shù)，兩個(gè)電梯的運(yùn)作將遵循一定的調(diào)度原則。電梯不停在另一個(gè)電梯正在停在或已經(jīng)停過(guò)的樓層。該電梯的正常運(yùn)行是通郭其電力驅(qū)動(dòng)系統(tǒng)和邏輯控制系統(tǒng)的合作實(shí)施的。3.軟設(shè)計(jì)由于呼叫時(shí)間，呼叫地點(diǎn)和乘客的目的地的隨機(jī)性，電梯控制系統(tǒng)是一個(gè)典型的實(shí)時(shí)隨機(jī)邏輯控制系統(tǒng)在這里我們基于西門(mén)子PLCS7-200CPU226和擴(kuò)展模塊來(lái)通過(guò)集體選擇性控制。該系統(tǒng)有46個(gè)輸入點(diǎn)和46輸出點(diǎn)。該I/O點(diǎn)，呈現(xiàn)于表1和表2表1輸入點(diǎn)描述層行外呼叫層行外呼叫層呼叫層達(dá)傳感器電梯門(mén)開(kāi)按鈕電梯門(mén)關(guān)按鈕電梯門(mén)關(guān)平層按鈕電梯門(mén)開(kāi)平層按鈕上行傳感器下行傳感器防火開(kāi)關(guān)運(yùn)行操作開(kāi)關(guān)觸摸面板開(kāi)關(guān)超載強(qiáng)迫變速開(kāi)關(guān)滿載描述

地址I2.0-I2.7,I3.0I4.2I4.3I4.4I4.5I4.6I4.7I5.0I5.1I5.2I5.3I5.4I5.5表2輸點(diǎn)地址層行外呼叫燈層行外呼叫燈層呼叫燈上行燈下行燈七段LED顯電梯的位置電梯門(mén)開(kāi)電梯門(mén)關(guān)上行下行滿載燈高速運(yùn)行低速運(yùn)行加速開(kāi)始減速制動(dòng)蜂蜜器報(bào)警

Q0.0-Q0.7Q1.0-Q1.7Q2.0-Q2.7,Q3.0Q3.1Q3.2Q3.3-Q3.7Q4.2Q4.3Q4.4Q4.5Q4.6Q4.7Q5.0Q5.1Q5.2-Q5.4Q5.5關(guān)于軟件設(shè)計(jì)，我們采用模塊化方法去寫(xiě)梯形圖程序。該模塊之間的信息傳輸是通過(guò)的中間寄存器實(shí)現(xiàn)的。整個(gè)項(xiàng)目主要由個(gè)模塊組成：外呼叫注冊(cè)和顯示模塊，轎廂內(nèi)呼叫注冊(cè)和顯示模塊信號(hào)組合模塊，外呼叫取消模塊，電梯定位顯示模塊，樓層選擇模塊，運(yùn)動(dòng)方向控制模塊，門(mén)打開(kāi)/閉模塊，維護(hù)操作模塊和在并聯(lián)運(yùn)行模式下的調(diào)度模塊。該典型模塊的設(shè)計(jì)描述如下：3.1外叫與顯示在電梯中有兩種類型的呼叫：外呼叫和轎廂內(nèi)呼叫。當(dāng)有人在電梯的控制面板上按下一個(gè)按鈕時(shí)信號(hào)將被注冊(cè)且相應(yīng)的燈將被照亮就是所謂的外呼叫登記。當(dāng)乘客在電梯轎廂內(nèi)按下一個(gè)按鈕式，該信號(hào)將被注冊(cè)并且相應(yīng)的燈照明。這就是所謂的轎廂內(nèi)呼叫登記。圖2示了外呼叫上行注冊(cè)和顯示的梯形圖自鎖原理是用來(lái)保證了呼叫的連續(xù)顯示。圖外呼上注冊(cè)和顯示3.2呼的體選擇這里是集體選擇控制規(guī)則的使用。如在圖3顯示的，M5.0-M5.7，和都是的輔助繼電器。他們分別表示了一到九層的請(qǐng)求停止的信號(hào)。輔助繼電器6.2表示該電梯運(yùn)行的操作信號(hào)。當(dāng)某層有呼叫時(shí)，相應(yīng)的樓層停止信號(hào)將被輸出當(dāng)電梯由驅(qū)動(dòng)程序操作時(shí)外呼叫將不會(huì)被響應(yīng)并且電梯不能通過(guò)乘客要下的樓層。3.3

呼

叫

的

取

消該模塊方案可以使電梯響應(yīng)與當(dāng)前電梯運(yùn)行方向相同的外呼叫，并且當(dāng)一個(gè)外呼叫被響應(yīng)了，其注冊(cè)將被取消。

外呼叫上行的取消的梯形圖如圖4。圖合的呼叫圖行呼叫的取消在圖4，輔助繼電器M4.0標(biāo)志著電梯向上移動(dòng)。當(dāng)電梯的當(dāng)前運(yùn)行的方向是向上時(shí)M4.0觸頭關(guān)閉相反當(dāng)電梯的當(dāng)前運(yùn)行的方向是向下時(shí)的觸頭打開(kāi)。M0.1至M0.728的內(nèi)呼叫停止信號(hào)。這個(gè)方案有兩個(gè)功能：1當(dāng)電梯下行時(shí)能夠使電梯正常的響應(yīng)外呼叫下行，并且當(dāng)一個(gè)外呼叫被響應(yīng)了，其注冊(cè)能夠被取消。2當(dāng)電梯上行時(shí)所經(jīng)過(guò)的樓層的外呼叫下行信號(hào)不被響應(yīng)并且該信號(hào)能被保存。下行外呼叫和上行外呼叫取消的信號(hào)被取消電梯的方電梯可向上或向下移動(dòng)，這取決于外呼叫和內(nèi)呼叫的組合。下面的中的梯形圖表明電梯將上行。圖5電梯的上行圖5明了當(dāng)相應(yīng)的呼叫樓層高于當(dāng)前的電梯位置時(shí)電梯將上行這里輔助繼電器是用作電梯上行的標(biāo)志。當(dāng)電梯正在上行是，上行的被照亮，所以置一。當(dāng)電梯到達(dá)頂層時(shí)上行燈被關(guān)掉同時(shí)定時(shí)器開(kāi)始計(jì)時(shí)秒以后置零，上行顯示關(guān)閉。這里我們用M4.0代替Q3.1能夠增加取消的可靠性。3.5電樓層止圖6梯形圖顯示了電梯的樓層停職功能。正如圖6明樓層停車信號(hào)的標(biāo)志。派出由驅(qū)動(dòng)程序樓層停止信號(hào)。M是由防火開(kāi)關(guān)發(fā)送防火信號(hào)。M6.7被迫變速信號(hào)。當(dāng)這些接觸器中的一個(gè)動(dòng)作時(shí)，系統(tǒng)將發(fā)送樓層停車信號(hào)。4最低等待時(shí)間算法在電梯交通系統(tǒng)中通常有兩種類型的控制任務(wù)一個(gè)是指揮電梯上下移動(dòng)，停止或啟動(dòng)并打開(kāi)和關(guān)閉門(mén)的基本的控制功能。另一種是控制電梯群組。一個(gè)群組控制系統(tǒng)在服務(wù)中的主要要求是不管在轎廂內(nèi)或轎廂外都應(yīng)該為一個(gè)樓的每個(gè)樓層的提供服務(wù)減少乘客等待電梯花的時(shí)間減少乘客從一層到另一層所花的時(shí)間，在給定的時(shí)間內(nèi)盡可能的為更多的乘客服務(wù)。圖6電梯的層停靠有很多電梯群組控制的調(diào)度算法。如最近鄰算法，該電梯總是服務(wù)于鄰近的隱蔽的需求分區(qū)算法是通過(guò)分析人們要求派遣電梯與樓層不協(xié)調(diào)的電梯交通系統(tǒng)以及奇偶規(guī)則是其中一個(gè)電梯只服務(wù)于奇數(shù)樓層和另一個(gè)只服務(wù)于偶數(shù)樓層。最近鄰算法把該電梯空移動(dòng)到下一個(gè)請(qǐng)求的長(zhǎng)度減小到最小。它通常有很小的平均等待時(shí)間但是個(gè)別的等待時(shí)間會(huì)變得很大分區(qū)算法通常用于有繁忙的情況的建筑如在午餐時(shí)間的辦公樓。相較于辦公樓和商場(chǎng)宅樓的交通流量甚至在每個(gè)樓層都相對(duì)較低，人們通常認(rèn)為電梯是純功能性對(duì)象和大多數(shù)人乘坐電梯的經(jīng)驗(yàn)就是等待的時(shí)間。此外，當(dāng)電梯去試圖滿足所有要求時(shí)就存在著巨大的問(wèn)題。考慮到上述原因，我們采取了“最小的等候時(shí)間”的算法來(lái)實(shí)現(xiàn)了2組電梯的并行運(yùn)行。評(píng)價(jià)函數(shù)而“最小等候時(shí)間算法的目標(biāo)是根據(jù)所有呼叫去預(yù)測(cè)每個(gè)電梯的響應(yīng)時(shí)間，并選擇具有最短響應(yīng)時(shí)間的電梯去服務(wù)。當(dāng)有呼叫時(shí)，系統(tǒng)將計(jì)根據(jù)(1)和式（2）的評(píng)價(jià)函數(shù)去算出每個(gè)電梯的函數(shù)值：JMin[J(1),J(n)]J