城市应急物流救援物资运输优化方法-研究

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1、II万方数据ResearchontheOptimizationMethodofReliefSuppliesTransportationinUrbanEmergencyLogisticsAbstractChinaisacountrywithfrequentnaturaldisasterswhichisdeterminedbyChinesegeographicallocation.Naturaldisastershaveagreatimpactoneconomyandpeoplesafety.Weshouldtryou

2、rbesttoreliefsuppliesdistributionworktoreducepost-disasterinfluencewhendisastersoccur,whichrequiresgovernmentdepartmentstodevelopasetofhighlyefficientemergencylogisticssystem.Reliefsuppliestransportoptimizationproblemisthekeytoachieveefficientlogisticssystemth

3、attimesatisfactionisthemostimportantgoal,butinthemeantime,wealsohavetoconsidercostrestrictions,etc.,sothetransportoptimizationofreliefsuppliesisatypicalmulti-objectivecombinatorialoptimizationproblem.Constructionoftheroadnetworkmodelisthepreconditionforthevehi

4、cleroutingoptimization.Consideringthebasiccharacteristicsofurbantransport,thispaperputsforwardasimplifiedstaticnetworkmodel,whichrequiresonlyasmallcollectionofvehicletrafficinformationthatcanbetakenthevarioustimeloss(redlightwaiting,turntime,etc.)intoaccountdu

5、ringvehiclestraveling.Onthebasisofthestaticsimplifiednetworkmodel,thepaperconsiderssyntheticallytheparticularityofdynamicchangeinurbantrafficflownamelytrafficflowsdifferentindifferenttimeperiods,andproposesasimplifieddynamicroadnetworkmodelbasedontimedivision;

6、Thispaperestablishesemergencyreliefsupplieslogisticsmulti-objectivecombinatorialoptimizationmodelandutilizesimprovedgeneticalgorithmtosolvethemodel;Itanalyzesthemulti-objectivecombinatorialoptimizationmodelthroughacaseandverifiestheeffectivenessofthealgorithmb

7、yMatlab7.0software.Thencomparingwiththesimulationresultsofstandardgeneticalgorithm,itanalyzesthesuperiorityoftheimprovedalgorithm.Thedesignofnavigationterminalembeddedsoftware.ThispaperintroducesthestructureframeofAndroidsystem,establishmentonAndroiddevelopmen

8、tenvironmentandapplicationmethodofBaiduMapsAPIKey,whichpavethewayforembeddedsoftwaredevelopment,andexplainsthedesignstepsofeachfunctionmoduleintheIII万方数据沈阳大学硕士学位论文navigationtermina