用于水電機組狀態(tài)監(jiān)測中無線傳感器網(wǎng)絡協(xié)議的研究.pdf

1、重慶大學碩士學位論文用于水電機組狀態(tài)監(jiān)測中無線傳感器網(wǎng)絡協(xié)議的研究姓名：何莉媛申請學位級別：碩士專業(yè)：電氣工程指導教師：李永明20060401重慶大學碩士論文英文摘要IIABSTRACTWirelesssenswk(WSN)isalatemodelwirelesswkwithnoninfrastructureselfganization.Withthedevelopmentofmicroelectronicsenstechnologyc

2、ommunicationtechnologyWSNdevelopsrapidlyhasmadeagreatprogressrecentyears.What’smeithasbeenusedinsomemilitarycivilianapplicationssuccessfully.WSNhasabrightfuturefitsextensiveuse.Manyactiveroutingprotocolsusedinotherwksare

3、notsuitablefWSNbecauseoftheacteristicsofWSNsuchashardwareresourcelimitationpowercapacitylimitationdatacentralselfganizationmultihoproutingdynamictopologydenselydistributionwithnumerousnodesetc.Sowehavetodesignanapplicati

4、onspecificprotocol.Inthethesiswirelesssenswkapplicationfhydrogeneratconditionmonitingbreakthroughthemodeofwirecentralizedmonitingmodelwhichiswidelyusednow.Theequipmentstatemonitingsystembasedonwirelesssenswkcanbettermeco

5、nvenientlyachieveequipmentconditionmonitingprediagnosislifeevaluationremodelingschedulingprocesstrackreducestoptime.Themaincontentsinthepaperareasfollows:Firstlybrieflyintroducethewirelesssenswk.Secondlystudytheexitingro

6、utingMACprotocolsfwirelesssenswk.Thedesigngoalchallengeofwirelesssenswkprotocolwerediscussedthenanalyzedtheexitingprotocolswhichprovidethebasisffutureresearch.Thirdlythesuperiityofthewirelesssenswkapplicationfhydrogenera

7、tisanalyzed.Thewirelesssenswksystemarchitectureisdesignedthekeytechnologiesarediscussed.Accdingtotheacteristicsofwirelesssenswkapplicationfhydrogeneratconditionmonitingaprotocolisdesigned.Inthepapertheprotocoladoptspecia

8、lrouteoptimizealgithmTDMAtimeslotassigningalgithmmakenodeenterlowconsumptionsleepstateindertoreducetheconsumptionAimingatchoicethemechanismofclusterheadmultihoproutingthemechanismofMACtheexistingLEACHprotocolisimproved.I

9、ntheLEACHNEWprotocolthemainlyimprovementoftheLEACHprotocolexhibitsasfollow:FthesakeofbalancingthewkloadThewkchoosetheclustersbasedontheresidualenergywetakemultihopcommunicationbetweensenssinsteadofsinglehopcommunicationw

10、hichresultsinthereductionofenergyconsumptionofclustersThenewprotocolfindsthepathtotheclusterheadwiththeminimumcostusinganalgithmsimilartofloodingtopropagatethecostinfmationgreedyalgithmtofindthelowestcostlinkThealgithmfa

11、ssigningTDMAtimeslotreducesoveralldelaysofwk.FinallywesimulatedtheprotocolwithNS2.ThenumericalresultsshowthatthenewprotocolhasalongerlifetimemeefficientthantheLEACHprotocol.Keywds:HydrogeneratConditionMonitingWirelessSen