Schramm, P.; Naroska, E.; Resch, P.; Platte, J.; Linde, H.; Stromberg, G.; Sturm, T.;Pervasive Computing, IEEEVolume 3, Issue 1, Jan.-March 2004 Page(s):66 - 74 Digital Object Identifier 10.1109/MPRV.2004.1269133 Report: M9756019 *

OutlineIntroductionThe Shaman conceptThe Shaman alarm system scenarioArchitecture and implementationExperimentsReferences*

IntroductionThe typical approach is to connect sensor actuator devices using classic network infrastructures at a low level.To integrate them into high-level, ad hoc networking communities.For services in heterogeneous environments to be convenient, they must join ad hoc networks and support middleware systems such as Jini or UPnP.*

Whats ad hoc networkAd-Hoc802.11APAccess point (self-organization)*

Whats JiniJavaMiddleware*

Jini(Discovery)(Lookup)(Leasing)(Remote Events)(Transaction)*

Jini*

Jini (cont.)*

Whats UPnP*

UPnP(Device)(Service)(Control Point)*

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UPnP(Addressing)(Discovery)(Descripition)(Control)(Event)(Presentation)*

The Shaman conceptAn extendable java-based service gateway for networked sensor systems.Integrates small network-attached sensor-actuator modules(SAMs) into heterogeneous.High-level networking communities.

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The Shaman concept (cont.)The gateway connects the embedded world to the internet*

Key featuresMultiple service interfacesSmart-driver conceptOne GUI, x interfacesPlug-and-work capabilitiesScalability

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The proxy acts on behalf of the sensor-actuator module(SAM) and uses the gateway hosts resources.*

The Shaman alarm system scenarioHow to apply Shaman technology to a hotel that needs a smart and reliable fire alarm system.Energy efficiencyFault toleranceSensor fusionConfigurabilityHuman-machine interfaces*

The Shaman alarm system scenario (cont.)Handling configuration problemsTemperature monitoringSelf-diagnostic capabilitiesFull-scale alarm procedures*

Architecture and implementationGateway serviceTo overcome the problem of a SAM note being able to handle multiple client connectionsStores client requests in request queueSequentially passes these requests to a SAM proxy*

Architecture and implementation (cont.)The gateway host running several gateway services, and the service manager*

Architecture and implementation (cont.)Client interfaceThe jini interface The applet interfaceHTML interfaceUPnP announcer

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Architecture and implementation (cont.)A gateway service connecting a SAM to three different types of clients*

Architecture and implementation (cont.)Implementing a new serviceSAMSAM proxyGUI module*

ExperimentsThe gateway hostUsed a standard PC with a HotSpot VM from the Java 2 Standard Edition.Some SAMsNative code on DIL/NetPCs.Terminal devices used bluetooth-enabled compaqi iPaqs and the NSICom crEme Personal Java VM.*

ReferencesJiniUPnPResearch Interests/Projectshttp://hccc.ee.ccu.edu.tw/tch_rsrch.htmlAd-Hoc http://taiwan.cnet.com/enterprise/glossary/term/0,2000062921,2000058936,00.htm*

The End.*