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1、EfficientApplicationIntegrationinIP-BasedSensorNetworksDoganYazar,AdamDunkelsSwedishInstituteofComputerScience{dogan,adam}@sics.seAbstractIPNetworkSensornetworksareseenasanimportantpartinemergingAutomationServerofficeandbuildingenergymanagementsystem,buttheinte-grationofsensornetworkswithfutureenerg
2、ymanagementsystemsisstillanopenproblem.WepresentanIP-based802.15.4RadioLinkRoutersensornetworksystemwherenodescommunicatetheirin-:SensorformationusingWebservices,allowingdirectintegration:ActuatorWorkstationinmodernITsystems.OursystemusestwomechanismsDatabase:PowerMetertoprovideagoodperformanceand
3、low-poweroperation:a:Radiatorsession-awarepower-savingradioprotocolandtheuseoftheFigure1.Sensors,actuators,andotherenergymanage-HTTPConditionalGETmechanism.Weperformanexten-mentdevicessuchasenergymetersandradiatorsaresiveevaluationofoursystemandshowthatWebservicesarepartofthesameIPnetworkastheauto
4、mationserver,aviablemechanismforuseinlow-powersensornetworks.andthedatabaseserversthatcarrythedataonwhichOurresultsshowthatWebservicerequestscanbecompletedtheautomationsystemoperates.wellbelowonesecondandwithalowpowerconsumption,eveninamulti-hopsetting.CategoriesandSubjectDescriptorsthebenefitofint
5、eroperabilityatthenetworklayer.IPdoesnot,however,automaticallyenableintegrationatthehigherC.2.2[NetworkProtocols]:Applicationslayer.GeneralTermsTointegratesensornetworkswithexistingITsystems,theDesign,Experimentation,Measurement,PerformanceuseofWebserviceshasbeenproposed[9,6,11].Webser-Keywordsvic
6、esareamechanismthatiswidelyusedingeneralpurposeITsystems,suchasbusinesslogicsystemsanddatabases.Sensornetworks,webservices,RESTWebservicesprovideastructuredandinteroperablemech-1Introductionanismfordataacquisition,datastorage,anddatareplica-Sensornetworksareseenasanimportantpartinthetionbothwithin
7、andoutsideofthesensornetwork.AWebemergingfieldsofenergymanagementforhomes,offices,services-basedsensornetworkcanbeintegratedintoofficeandthesmartgrid.Manyexistingsensornetworkdeploy-automationorhomeenergymanagements
