Sensor Network Applications Smart Home

ikom-ComNetsVisionsandChallengesofWirelessSensorNetworks6.FachtagungdesITGFachausschusses5.2Kommunikationsnetzeund-systemeAndreasTimm-GielUniversitä[e-mail]-ComNets2Overview
VisionofSensorNetworks
ApplicationExamplesforSensorNetworks
DesignPrinciples
ResearchTopicsinWSN
Conclusion/Outlookikom-ComNets3WhatisaSensorNode?
Sensor+Processing+CommunicationCapability
„Tiny“
LowPrice
LowPowerConsumption
TypicallyIEEE802.15.4/ZigBee
TypicallyTinyOS
ReferenceDevices
BerkeleyMOTES
FraunhofereGRAINin20102x2x4mm³=true:eGRAINCrossbowMoteikom-ComNets4
SmartHome
SmartOffice
EnvironmentalMonitoring
HabitatMonitoring
SmartBridges&Roads
DisasterReliefNetworks
MedicineandHealthCare
Surveillance
VehicularTechnology
…WorkshoponEnergyandMaterials:CriticalIssuesforWirelessSensorNetworks,DublinJune30th,2006
Asaresearchinstrument(“macroscope”)
HabitatMonitoring
EnvironmentMonitoring
Asadiagnosticssystem
Monitoringofbodyfunctions
Asasurveillancesystem
Homemonitoring
MilitaryexplorationEMGECGEEGSpO2ikom-ComNets8ApplicationareasClassificationbysector
Industry
Retail
Logistics
Construction
Agriculture
Medicine,HealthCare
Military
Artsikom-ComNets9ExampleWSNinLogistics
Equipgoods(parcels,containers),vehicleswithsensornodes
intelligentgood,intelligentcontainer,-SFB637:SelbststeuerunginderLogistik:EinParadigmenwechselundseineGrenzenikom-ComNets10Lifeline
IdeaforLifeline:
putsensorsalongthewaywhenenteringthebuilding
relaydatainformationandvoicemessagesfromfirefighterswirelesslytotheincidentcommanderoutsideatthefireengine
collectinformation,e.g.temperature,airqualityandvisibility,andwarnthefiremenifthereturnisblocked.
relayvoicemessagesfromfirefighterbacktoincidentcommanderEmergencyManagementBodyAreaNetworkonFirefighterISTIPwearit@workikom-ComNets11MedicalApplicationikom-ComNets12RecreationalActivities•~jovanov/whrms/ikom-ComNets13TheFantasticVoyage–In-BodySensorsWorkshoponEnergyandMaterials:CriticalIssuesforWirelessSensorNetworks,DublinJune30th,2006
From:IanF.Akyildiz,WeilianSu,YogeshSankarasubramaniam,ErdalCayirci,IEEECommunicationMagazineAugust2002,p.102ff.ikom-ComNets15DesignSpace[4]
Deployment
Manualvs.Random
One-timevs.Iterative
Mobility
Immobilevs.Partlyvs.All
Occasionalvs.Continuous
Activevs.Passive
Cost,size,resources,energy
Brick,matchbox,grain,dust
Heterogeneity
Homogeneousvs.Heterogeneous
Infrastructure
Infrastructurevs.Adhoc
Networktopology
Single-hopvs.Starvs.Treevs.Graph
Connectivity
Connectedvs.Intermittentvs.Sporadic
Coverage
Sparsevs.Densevs.Redundant
Networksize
Tenstothousands
Lifetime
Hourstoyears
OtherQoSrequirements
Real-timeconstraints
Robustness
Tamperresistance
Unobtrusivenessikom-ComNets16OptimisiationGoalsandFigureofMerit
Quality-of-Service
Datarate,delay,jitter,errorrate
EnergyEfficiency
Energypercorrectlyreceivedbit,energyperreportedevent,networklifetime
Scalability
Maintainperformancecharacteristicsirrespectiveofnetworksize
WSNpotentiallythousandsofnodes
Robustness
WSNshouldnotfailbecausefewnodesareoutofpower
NetworkCostsikom-ComNets17DesignPrinciples[1]-1
DistributedOrganization
Self-Organization
Decentralizedapproachresultsdoesnotnecessarilyinanoptimalsolutions,thereforeoftenintroductionofhierarchieswithlocally„elected“clusterheads…
In-NetworkProcessing
Aggregation
Ifonlyaverageoronlydifferencebetweenmaxandmininterestingthannotalldataneedstobetransferredtosink
Considering:
Limitedenergy,limitedcapabilitiesofsensornodes,heterogeneityofnodes,securityikom-ComNets18DesignPrinciples-2
In-networkingProcessing
Distributedsourcecodinganddistributedcompression
Databetweenadjacentnodescanbecorrelated
Distributedandcollaborativesignalprocessing
Mobilecode/Agent-basednetworking
AdaptiveAccuracy
Dependingoncontext(energyscavenged,applicationcontext)thenumberofnodesactiveinmeasurementcanbeadapted
DataCentricity
Addressdatanotnodes
Exploitcontext
locationinformation,activitypatterns
Exploitheterogeneity
Heterogeneoussensornodes,differentbatteries,processingpower,memoryikom-ComNets19ProtocolsandDataAggregationinCRUISE
  
!   
 
WirelessSensorNetworks: