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The Smart Home Concept : our immediate future

1 LTI Avenue des Facultés le Bailly 80000 Amiens (France). 2 EDF R&D 1 Avenue Charles de Gaule 92141 Clamart (France). 3 LaRIA 33 rue Saint Leu 80000 Amiens (France). The Smart Home Concept : our immediate future.

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The Smart Home Concept : our immediate future

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  1. 1LTI Avenue des Facultés le Bailly 80000 Amiens (France) 2EDF R&D 1 Avenue Charles de Gaule 92141 Clamart (France) 3LaRIA 33 rue Saint Leu 80000 Amiens (France) The Smart Home Concept : our immediate future Vincent Ricquebourg1,2, David Menga2, David Durand3, Bruno Marhic1, Laurent Delahoche1, Christophe Logé3 LTI

  2. Summary • Introduction • What is a Smart Home ? • The service concept • How to perceive the context ? • The OSGi framework • Architecture for context perception • Architecture implementation • Future works and conclusion

  3. 1 Introduction • What is a Smart Home? • The service concept • How to perceive the context ? • The OSGi framework • Architecture for context perpception • Architecture implementation • Future works and conclusion

  4. 1. Introduction • EDF is the french electricity provider • The EDF Group manages all aspects of the electricity business. The Group has a strong footing in Europe, with a total of 40.2 million customers worldwide. • The only one in this market for now • Opening of the electricity market to the competition • Customers have the right to choose energy providers • EDF has to provide new services to keep its customers and to attract new customers • In our case, we want to provide services to inhabitants EDF : Electricité De France (Electricity of France) http://www.edf.fr/259i/Homefr.html

  5. 2 • Introduction • The service concept • How to perceive the context ? • The OSGi framework • Architecture for context perpception • Architecture implementation • Future works and conclusion What is a Smart Home ?

  6. 2. What is a Smart Home ? • Has an access to world through an Internet connection • Has Smart Objects : • Smart Refrigerator, Smart TV, Smart Heating, … • It’s a comfortable house : • Heating, air-conditioning, lighting,… An economic house A house which simplifies the daily (back to the house, go out, relaxation and leisures,…) A sure house (safety of the objects, safety of the persons) An autonomous house (supervision, reactivity) A Smart Home has to provide services to inhabitants

  7. What is a Smart Home ?

  8. WANs MANs LANs PANs BANs Telecom Available Technologies • WANs (Wide Area Networks) : • Satellites or antennas installed on towers or on buildings (3G, EDGE, GPRS,…) • MANs (Metropolitan Area Networks) : • WIMAX • LANs (Local Area Network) : • Wifi and HyperLan (Wireless) • Ethernet (Wire) • PANs (Personal Area Networks) : • Bluetooth, RFID, Zigbee, UWB (Wireless) • CEBus, Convergence, emNET, HAVi™, HomePNA™, HomePlug™, HomeRF™, Jini™ technology, LonWorks, X10, UPnP, VESA, USB, serial link (Wire). • BANs (Body Area networks) : • BodyLAN (use the skin to transmit data)

  9. 3 • Introduction • What is a Smart Home ? • How to perceive the context ? • The OSGi framework • Architecture for context perpception • Architecture implementation • Future works and conclusion The service concept

  10. 3. The service concept • Services to the inhabitants (non-exhaustive) • Detection of health problems • We have to analyze : • Physiological information • To detect heart attack,… • People behavior • To detect the fall of an elderly person • Detection of house problems • We have to analyze : • Water level • To detect water leakage • Temperature level • To detect the fire in a room

  11. 3. The service concept • Providing services in the house • To provide services, • the house needs to interact (environment and people) • Smart Home

  12. Services to inhabitants : Examples • I am going out, the Smart Home chooses the economic mode (Switch off the lights, lowers heating, lowers shutters) • I come back at home, lights switch on, my emails are diffused on my TV... • The indoor lighting adapts itself according to the outdoor luminosity • The Smart Home has to perceive the context • The Smart Home has to be context-awareness in order to provide the more adapted service according to an actual context • The Smart Home provides contextualized service

  13. 4 • Introduction • What is a Smart Home? • The service concept • The OSGi framework • Architecture for context perpception • Architecture implementation • Future works and conclusion How to perceive context?

  14. Contextualized Services Sensors Contexts 4. How to perceive context? • The Smart Home has to observe the inhabitant and its environnment • Many layers to perceive the context Ref : Coutaz J., Crowley J., Dobson S., Garlan D. - « Context is key » -Commun. ACM, Vol. 48, No. 3. (March 05)

  15. 5 • Introduction • What is a Smart Home ? • The service concept • How to perceive the context ? • Architecture for context perpception • Architecture implementation • Future works and conclusion The OSGi Framework

  16. 5. The OSGi Framework • OSGi technology is Universal Middleware (cars, cellulars, gateways,…) • In a distributed computing system, middleware is defined as the software layer that lies between the operating system and the applications on each site of the system. • OSGi technology provides a service-oriented, component-based environment for developers and offers standardized ways to manage the software lifecycle. • Based on Java™ platform. http://www.osgi.org/

  17. 5. The OSGi Framework • The OSGi Service Platform provides the functions to change the composition dynamically on the device of a variety of networks, without requiring restarts. • To minimize the coupling, the OSGi technology provides a service-oriented architecture (SOA) that enables these components to dynamically discover each other for collaboration. • Many standard component interfaces for common functions like HTTP servers, configuration, logging, security, user administration, XML, Deployment Admin, UPnP Service,…

  18. 5. The OSGi Framework : Example of Deployement

  19. 6 • Introduction • What is a Smart Home ? • The service concept • How to perceive the context ? • The OSGi framework • Architecture implementation • Future works and conclusion Architecture for Context Perception

  20. 6. Architecture for Context Perception • A four layer Architecture • Perception • How to perceive? Using sensors which enable to quantify a physical phenomenon → Contextual data acquisition • Context • How to perceive context ? Using a model of the context with contextual data • Inference • How to define a situation? Using an inference engine (raisoner) • Action • How to act face to a situation? Using actuators which enable to modify a physical phenomenon P Environment C I A

  21. 6. Architecture for Context Perception Perception Context Inference Action Environnement

  22. 6. Architecture for Context Perception • The hardware layer • To perceive a physical phenomenon (sensors) • To modify a physical phenomenon (actuators)

  23. 6. Architecture for Context Perception • The event layer • Allows the sensors/actuators data transmission • Provide a harmonized layer for sensors/actuators data

  24. The event-driven bus • Use of an event-driven bus (publish/subscribe) • Event-driven bus to manage simple events • Format of the emitted events: [Sensor,SensorValue,TimeStamp,SensorUnit,Confidence,SensorID,MsgID] Sensor 1 Bundle 1 Event-driven bus Sensor 2 Bundle 2

  25. The context model • The Ontology • Models the Smart Home • The model is filled with sensors data • Rules • Enable reasoning based on Ontology content • Inference engine

  26. I know this Inference What is the suggestion? I know that The context model • Our context model is based on an ontology that models the Smart Home. • It provides a physical representation of the Smart Home (doors, walls, windows,…), the objects of the Smart Home (furnitures, electric household appliances,…), the inhabitant by modelling some characteristics (localisation, identification,...). • Ontologies are based on the OWL language, from W3C. With OWL, it is possible to represent the meaning of the terms and the relations between them. • With rules, it is possible to make reasoning based on the ontology content to define the best service to provide. Ontology Rules

  27. Ontology for context modeling

  28. The context model Rules : SWRL is a proposal in submission by the W3C, aiming at combining OWL and an inference rules language based on RuleML • Light(?l) Λ Inoccupied_House (?h) Λ IsLocated(?l,?h) → Light_OFF(?l) • Radiator(?r) Λ Inoccupied_House (?h) Λ IsLocated(?r,?h) → Radiator_OFF(?r) • Light(?l) Λ Occupied_room (?r) Λ IsLocated(?l,?r) → Light_ON(?l)

  29. Different services • C/C services • Control/Command (C/C) Services perform basic actions • Basic services • Provide contextual data from one sensor/actuator class • Composite services • Aggregate contextual data sets in order to extract higher-level data. • Ontology service • Listens to data of the event bus, and then fills the contextual model. • Contextual services • Are provided to inhabitants, based on information from the environment.

  30. 7 • Introduction • What is a Smart Home ? • The service concept • How to perceive the context ? • The OSGi framework • Architecture for context perpception • Future works and conclusion Architecture implementation

  31. 7. Architecture implementation • The Follow-me scenario: I move in a room and the system automatically switches on the nearest lights. An actuators network which can switch on and off the lights through X10 material (PLC). A wireless motion sensors network on which we can define detection zones. Problems : X10 material is average With an embedded system (1 Ghz processor, 256 Mo RAM), the execution time of the inference engine is about 5 seconds.

  32. 8 • Introduction • What is a Smart Home ? • The service concept • How to perceive the context ? • The OSGi framework • Architecture for context perpception • Architecture implementation Future works and Conclusion

  33. 8. Future works and conclusion • Adding another sensors (camera, force sensors,…) • Need to test the robustness of the architecture with another sensors • Need to find a more powerful embedded system to be real-time • Our architecture has been validated with a scenario • We integrate lots of technologie : OSGi, sensors, ontology, java, UPnP • Who will write the rules (customer or provider) ??? • This work can be extended to the robotics (sensors, inference,…)

  34. Thanks ! Bruno.marhic@u-picardie.fr Vincent.ricquebourg@u-picardie.fr Q&A

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