Dynamic zoning based supervisory control for elevators

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1、Proceedingsofthe1999IEEEInternationalConferenceonControlApplicationsWp2-66:OOKohalaCoast-IslandofHawai’i,Hawai’i,USA*August22-21,1999DynamicZoningBasedSupervisoryControlforElevatorsAlbertT.P.SoJansonK.L.YuW.L.ChanCityUniversityofHongKongCityUniversityofHongKongHongKongPolyte

2、chnicUniversityAbstract-Zoningisoneconventionalwaytomakeanscheduled.Staticzoningreferstothepermanentassignmentexistingelevatorsystemadapttodirerenttrafficpatterns.ofagroupofcarstoserviceanumberoffloorsusuallyHowever,zoningisgenerallyeitherfixedpermanentlyoradjacentinthebuild

3、ing.Time-scheduledzoningreferstostaticbasedontimeschedulingwherethefloorsbeingtemporaryzoningofthebuildingduringapre-scheduledgroupedintozonesarepredeterminedduringthedesignperiodoftimeduringtheday.Theperiodusuallycoincidesstage.Inthispaper,anewconceptisintroducedthatcanwith

4、thepeaktrafficsituationorrushhoursandtheprovidethefeatureofdynamiczoningforaelevatorsystemelevatorsserviceallfloorsoutsidethisperiod.basedontherealtimetrafficpatterns.TheobjectivesareThemeritofzoningisnotcontroversial.Actually,ittoachievemuximumhandlingcapacityofthesystemand

5、hasbeenimplementedinlotsofcommercialanddomesticminimumwaiting/travellingtimeforpassengersduringup-buildings.However,theexistingcontrolpatternsofzoningpeakanddown-peaktraf/icconditions.Twonewareeitherpre-deteminedorfixedonatime-scheduleshasis,algorithms.namely“UniformRTT“and“

6、Demandorinotherwords,theyarenotadaptabletotherealtimeMatching’:havebeendevelopedforintelligentcontrol.trafficpatterns.ThisshortfallinitiatesourresearchintotheInformationrelatedtorealtimezoningcanbedeliveredtoideaofdynamiczoning.TheconceptofprimitivedynamicpassengersbyLEDdisp

7、layboardsinstalledateachlandingzoningforup-peakonlyhasbeendeveloped[3]sothatabovethelandingdoors.Acomputersimulationbasedonelevatorsmakelessstopsperroundtripandcarsretumtoasoftwarepackageonmarket,Elevator2.0,hasrevealedlobbyfaster.However,thatsystemwasnotadaptabletothethatth

8、etwonewalgorithmscanimprovethepassengerchangingtrafficflowpatternsandtheass