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1、Theoptimizationdesignoftheliftworkingmode1.AbstractionTheaimofthemodelingistodesignaworkingmodefortheliftwiththebestefficiency.Tofulfillit,weshouldfirstestablishanestimatesystem.Throughdiscussion,ourteamdecidetotakethesatisfactiondegreeofindividualsandtheliftrunningefficiencyasthetwomajorfactor
2、s.Ofcourse,thetotalrunningtimecanrepresenttheefficiencyandiseasytomeasure.Thus,howtodefinethesatisfactiondegreeiscrucial.Asweknow,themostannoyingthingistowait.Nobodywantstowastetheirprecioustimejusttowaitforthelift..Thus,wemayconsidertheaveragewaitingtimeforasinglepassengerastheindextoestimatet
3、hesatisfactiondegree.Asforthefirstquestion,wethinkitasadynamicoptimizationofaqueue.Thebasicmethodistodividethe30floorsintoseveralparts,andeachparthasagivennumberoflifttoloadthepassengers.Themostimportantpointishowtodividethefloorsandhowtoarrangetheliftstominimumtherunningtimeoftheliftwiththelea
4、stenergyconsumption.What'smore,wecanregardthesixliftsassixservicestations,andestablishtheasystemwithuncertainservicetime.Takethebothfactorsintoconsideration,wecansetacomprehensiveandreasonableestimatesystemfortheliftworkingmode.Asforthesecondquestion,wecanmakeuseoftheestablishedestimatesystemto
5、evaluatetheprogram-controlworkingmode,figureoutitsefficiency,andfindoutitsadvantagesespeciallyonrushhours.Becausetheup-lifthastofollowthedown-lifttogotothebottom,thebestefficiencycanbereachedwhentheup-liftandthetdown-lift'srisclose.Accordingtothefact,outteamemphasizeourstudyonrushhours,butnorma
6、loccasionsarealsotakenintoconsideration.2.KeywordsThequeuesystem,Theanalytichierarchyprocess(AHP),Divisionaloptimization,MAXMINprinciple,Thearithmeticofdynamicoptimization,Dichotom3.TherestatementoftheproblemTheliftplaysanimportantroleinmodernbuilding,especiallyforskyscrapers.Asweknow,therearet
7、wokindsofliftprevalenttoday.Wecallthemsingleliftcaranddoubleliftcar.Theformeronehasonlyoneliftcarinachannel,whilethelaterhastwo.Theonlywaytoimprovetheefficiencyofthesingleliftcaristoincreasethenumberofchannel.Asamatteroffact,thedo
