建构多样化目的之无线感测网路实测环境.ppt

AdaptiveWirelessSensorNetworkTestbedforMultipleObjectives建構多樣化目的之無線感測網路實測環境 Reporter SunChung YuehHSCCLaboratory NationalCentralUniversity 2 Abstract 建構基於802 15 4協定下之無線感測網路 WirelessSensorNetwork 可以讓使用者透過Web介面 來使用實體感測網路環境 進行線上實驗與驗證 以有線網路為骨幹 經由網路交換器 Switch 連結中央伺服器 控制伺服器與所有節點 所有節點經RS232toTCP IPConverter 交由控制伺服器執行監測與通訊 並將資訊寫回MySQL資料庫 可連接不同感測硬體裝置 MicaMotes Octopus 進行偵測狀態 StatusDetecting 程式更新 Re programming 與資料蒐集與整合 DataCollection Aggregation 等實驗 3 Outline IntroductionMotivationRelatedWorkArchitectureImplementationApplicationExampleConclusionandFutureWork 4 Introduction WirelessSensorNetworkissues FaultToleranceScalabilitySensorCostsHardwareConstraintsTransmissionMediaEnvironmentSensorNetworkTopologyPowerConsumption 5 Introduction cont Theresearcherneed SetuptheWSNbythemselvesmanuallyMonitorandcontroltheWSNinarealtimeObtaininformationfromeachnodeEx energy linkquality neighborsDebugandevaluatenetworkperformanceWecanprovideaexpresswayforthem 6 Introduction What sourtestbed Thisisa3 tierframework Weusethewirenetworkasbackbone TheCentralServer ControlServerandeachSensorNodewithgatewayareconnectingthenetworkviaSwitch 7 Introduction cont Whatdoesourtestbeddo BuildtheWirelessSensorNetwork WSN following802 15 4standard ProvidetheIntegratedWebGUIforresearcherstousetheactualWSNNetworkEnvironment Theycandotheexperimentsandverifytheresultsonline Logtheworkinghistoryandyoucantracethem 8 RelatedWorks Emulab UtahUniversity NetworkEmulationTestbedGivingresearchersawiderangeofenvironmentstodevelop debug andevaluatetheirsystems Emulabisapublicfacility available 9 RelatedWorks cont MoteLab HarvardUniversity Web basedsensornetworktest bedDeployedTmoteSkyconnectedtocentralserverReprogramming datalogging 10 RelatedWorks cont TWIST TechnicalUniversityBerlin TWIST ascalableandreconfigurabletestbedarchitectureforindoordeploymentofwirelesssensornetworks 11 RelatedWorks cont Kansei OhioStateUniversity Kanseiconsistsofstaticnetwork portablenetworkandmobilenetwork anditisauniversaltest bedforhybridsimulation Kanseitest bedisexpensiveandisstillindeveloping 12 RelatedWorks cont But what sdifferent SupportdifferentSensingDevicesMicaMotes Octopusandetc Supportcustomizedfunctions addbyuser StatusDetectingRe programmingDataCollection AggregationDebuggingandTestingAnyyouwant 13 Motivation Weusethetestbedbecauseof Environmentissue Thesimulationresultsarenotequaltoruntimeresults Codingandchangingparameterisagainandagain Theexperimentresultcouldberecordeasily Resourcesissue WithoutenoughHWs SWstobuildaWSN TheyonlycanusespecificWSN CannotusedifferentHW SWforcomparing 14 Architecture Theworkflow 15 Architecture cont Users role TheycanusethebrowsertoconnecttoCentralServer RunexperimentfromUsers PCwiththeGUI Setparameter uploadcode Getthenodestatusandexperimentresult TheCentralServer sroleItcanacceptusers requestandqueuejob ThennotifytheControlServertodothejob 16 Architecture cont TheCentralServer sroleTheControlServerneedstomonitorandcommunicatewithnodes returnthedatarecord andsavetoMySQLDatabase TheWSNNodes roleTheydothejobswhichtheControlServer srequest Thegatewayshelpthesenodesaccesswirenetwork 17 Architecture cont Therealsetup 18 Architecture cont NodesoverEthernet SensorNodesconnecttoP B ProgrammingBoard P BconnecttoRS232toTCP IPConverterTheConverterconnecttotheswitch TheGateway TheControlServercanaccessnodesviaEthernet 19 Architecture cont SensorNodesdeployed 20 Architecture cont SoftwarearchitectureForCentralServerandControlServer 21 Implementation HardwareServer ASUSPCServerGateway UTekUT 620TCP IPConverterSensorNode MicaZ OctopusProgrammingBoard MIB510 OctopusP B3comFastEthernet10 100Switch 22 Implementation cont SoftwareCentralServerOS FreeBSDApache MySQL PHPControlServerOS WindowsXPCygwin TinyOS J2SE MSVB PCommApache MySQL PHPHyperTerminalCLImodeNodesTinyOSwithdeployedfunctions 23 Implementation cont Front endfunctionslisting InformationNewsSystemArchitectureDocumentationPublicationPapersTalksSoftwarePeopleandPhotosUsersandSponsors 24 Implementation cont EnvironmentStatusSystemStatusWorkingStatusNodeStatusOnlineExperimentCode BinaryUploadOnlineComplierNodepicker cluster multiplex UpdateProgram submitjob DumpdataCommandline AdditionfunctionPowerconsumptionWhole SignalHistoryTrackerHistoryrecordDownloaddataUsageStatisticsManagementAccountpermissionUsermanageQuota Broker Backendfunctionslisting 25 Implementation cont Demosite stillunderconstruction http 0v0 tw testbed Account admin Password admin 26 Implementation cont KeyTechnology UsingVBApps PCommLiteAccesstheVirtualComportonPCUsingJ2MEApps cygwinAutomatescriptstocontrolTinyOSUsingApache PHPApps MySQLAppsWebplatformsystemforusers Reditem Theseapplicationsaredevelopedbyourselves 27 ApplicationExample ConfigureCOMport 28 ApplicationExample ChooseNodes Type 29 ApplicationExample ChooseNodestorun 30 ConclusionandFutureWork Themaincontribution userscan Usethesystemanytimeandanywherewithout