分布式水质监测预警网络监测点布局优化方法-研究

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1、万方数据浙江大学硕士学位论文AbstractWiththefastdevelopmentofsocietyandeconomy,waterpollutionproblemisincreasinglyserious．ThereisanurgentneedtoestablishaperfectwaterqualitymonitoringandEarly-warningsystem，whichprovidesreal—timewaterqualitymonitoringdataandprotectsthedrinkingwatersafetyofpe

2、ople．Waterdistributionsystemhasalargenumberofnodes，whilethebudgetislimitedbygovernmentfinance，it'snecessarytostudythemonitoringsensornetworklayoutoptimizationproblems，promotingtheworkefficiencyofmonitoringnetwork．Fortheforegoingrequirements，thisarticlefocusesontheproblemofmo

3、nitoringsensornetworklayoutoptimizationforwaterdistributionsystems，theresearchcontentandmaininnovativepointsareasfollows(1)Theproblemofmonitoringsensornetworklayoutoptimizationforwaterdistributionsystemsiskindlydividedintotwotypes，inwhichmodels’accuracyplaysanimportantrote．I

4、nthispaper,weputforwardpopulationcoveragemodel(PCM)andpollutionincidentsdetectingtimeshortestmodel(CDTSD)，forsolvingtheshortagesoftheexistingmodels．Inthepopulationcoveragemodel，waterageratiobetweentwojunctionsandpartialcoverageconceptareusedtocalculatethesimilaritiesbetweene

5、verytwojunctions．AndthismodelissolvedinthesituationofMulti-Demandpattern．Whenitcomestopollutionincidentsdetectingtimeshortestmodel，humanfactorsareexcludedtoensuretheobjectiveaccuracyofmodel；parallelPSOalgorithmbasedonmultithreadmechanismisusedtoincreasethespeedofsolvingthemo

6、del．(2)Consideringthatwaterdistributionsystemsaresimplifiedtreatedinmostmodels，weputforwardamethodbasedonuncertaintytheorytotesttheeffectivenessoflayoutschemeprovidedbylayoutoptimalmodels．TheMonteCarlomethodisusedtosimulatepollutionincidentsinwaterdistributionsystems；damagei

7、ndexofeachpollutionincidentiscalculatedbysimulationprogram．Theprobabilityofdamageindexbelowthreshold九isusedtotesttheeffectivenessoflayoutscheme(3)Atlast，weputforwardaMulti—Objectivemodel，whichcombinespopulationcoverage万方数据浙江大学硕士学位论文Abstractmodel，pollutionincidentsdetectingti

8、meshortestmodelandsomeelsemodels，tomeetdifferentneeds．Differentobjectiveish