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1、AbstractInwirelesssensornetworks,traditionaldatatransfermethodistodatacollectedbyeachsensornodearesenttothesink-node.Becauseoftheoverlapofthesensornodesandintensivemonitoringofthedistributionoftheregion,willinevitablyleadtothenetworkhasalotofredundantdata.Redun
2、dantdatawillcausenetworkdelayed,channelcongestion,energyconsumptionincrease,etc.,forwhichwehaveintroducedadatafusiontechnologyinwirelesssensornetworks.Datafusiontechnology,isthenumberofdatafusionandtheapplicationinthewirelesssensornetworksistheintermediatenodef
3、romthesourcenodereceivesthenumerousdataaccordingtouserrequirementsanalysisprocessfusion,willtherepetition,lowcredibilityorinvaliddata,eventuallymergeintoasinglehighcredibility,highprecisionofdatainformation,andthensendittothenode.Basedonthis,thisarticleonthewir
4、elesssensornetworks(WSN),aswellassomeexistingdatafusionalgorithmbasedonwirelesssensornetworksroutingprotocol,onthebasisofanalysisandresearchtoTEENprotocolasthebasicmodelofhierarchicalroutingprotocol,proposedanimprovedstepwisedatafusionalgorithmandthedatafusionm
5、odelwasestablished.Themainideaofthestepwisedatafusionalgorithmproposedinthispaperis:Inwirelesssensornetworks,thetransmissionprocessofthesensornodescollecteddatatothesink-nodeisdividedintothreesteps,accordingtothedifferentcharacteristicsofeachladderreceivestrans
6、mitteddata,adoptingdifferentdatafusionalgorithm.Thefirststepofthealgorithmforclustermembernodeswithinthecollectionofdatafusion,isthearithmeticaverageofthedatafusionmethodwhichcanreducetheamountofcommunicationdatafromthedatasource;intheprocessofclustermembernode
7、ssendconvergeddatatotheclusterhead,quotingthemechanismthatbasedonthresholdintervaldatainspection,caneffectivelyimprovethetransferefficiency.Consideringthedifferentlevelsofconfidenceandaccuracyofthemembernodescollected,inthesecondstep,usingadaptiveweightedfusion
8、algorithmcalculatethedataoftheclusterheadnodeobtainedfromclustermembernodes,whichhascombinedeachmembernodedatadifferently.Inthethirdstep,theclusterheadnodesendsconvergeddata
