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International Journal of Web Service Research, January-March 2008

Constructing Home Network System and Integrated Services Using Legacy Home Appliances and Web Services. International Journal of Web Service Research, January-March 2008. Outline. Introduction Preliminaries Adapting legacy home appliances to hns Implementation: Naist-hns conclusion.

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International Journal of Web Service Research, January-March 2008

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  1. Constructing Home Network System and Integrated Services Using Legacy Home Appliances and Web Services International Journal of Web Service Research, January-March 2008

  2. Outline • Introduction • Preliminaries • Adapting legacy home appliances to hns • Implementation: Naist-hns • conclusion

  3. Introduction • Home Network System(HNS) • HNS Integrated Services • Networked Appliance • Networked Appliance Not Spread • Adapts Legacy Appliances to HNS • Smart Adaptor

  4. Home Network System (HNS) • TVs, DVD players, lights, ventilators, refrigerators, air conditioners, blinds and curtains, to be connected with a local area network at home • A system consisting of such networked appliances

  5. HNS Integrated Services • DVD theater service • lights become dark • curtain is closed • 5.1ch speakers are selected • sound volume is adjusted • contents are played with the DVD player

  6. Networked Appliance • Equipped with smart embedded devices • A processor and storage • A network interface • In order to provide and execute the appliance features required for various HNS application and services

  7. Networked Appliances Not Spread • The network appliance are still quite expensive • Types of available appliance are limited • Lack of programmatic interoperability • Users want to keep using the legacy appliances

  8. Adapts Legacy Appliances to HNS • Legacy appliances with the conventional infrared remote controllers (IrRC) • Smart adapter on a PC • Web service layer • Service layer • IR device layer • Service-oriented architecture(SOA)

  9. Smart Adaptor • Web service layer • Services are deployed in the HNS as Web services • Service layer • Aggregates multiple Ir-API call within self-contained services • IR device layer • Ir-APIs : PC can send any infrared signals to appliances

  10. PRELIMINARIES • Home Network System(HNS) • Home Server • Service-Oriented Framework for HNS • Software Controller for Legacy Appliances

  11. Home Network System(HNS) • One or more networked appliances connected to LAN at home • Each network appliances has a set of control APIs • The user or software agents can control the appliance via the network

  12. Home Network System

  13. Home Server • An application server which manages various value-added services • Plays a role of the gateway to the external network

  14. SOA for HNS • Service layer • Export the features to the network as the self-contained services with open interface • Aggregates the control APIs according to the logical features of the device • Device layer • Hardware • control APIs

  15. Architecture of Networked Appliance Based on SOA Service with open interface Logic feature

  16. Software Controller • user can control legacy appliances from a PC or a handheld device

  17. Soft-controller for a legacy TV UI : user interface IrRC : Infrared Remote Controller for home appliances IrRC I/F : IrRC interface

  18. Software Controller Use Case • user controls a single appliance at a time • Not supposed to be invoked by other applications • To be orchestrated by other appliances via the network • The same controller cannot be used directly for other appliances

  19. ADAPTING LEGACY HOME APPLIANCES TO HNS • Requirements • Proposed Architecture • IR Device Layer • Service layer • Supplementary Service • Web Service Layer • HNS Integrated Services

  20. Requirements • Achieve easy creation of HNS integrated service • Using generic PCs and IrRC devices • Applicable to a wide range of types and vendors of the appliances

  21. Proposed Architecture for Adapting Legacy Appliances

  22. IR Device Layer • Ir-APIs on the top of the IrRC driver • A set of generic interfaces • Relatively low-level but generic APIs • Typical Ir-APIs must include • Initialize IrRC • Set signal type • Send signal • Start sending burst signal • Stop sending burst signal

  23. Conventional HNS Architecture

  24. Proposed HNS Architecture

  25. Service Layer • The service layer aggregates several Ir-API calls within a service method • Every service method must be self-contained

  26. Service Method Condition • Method is executable by itself, independent of the context of other services or appliances • Method achieves by itself a consistent logical feature of the appliance

  27. Service Method ON() for TVA

  28. Service Method setVolume() for TVA

  29. Supplementary Service • Stores the current state of the appliance according to the history of service execution • Every appliance have a database(state DB) • When a service method is executed updated in the state DB • Return the current state upon the request from the external applications

  30. Web Service Layer • Standard SOA framework • The interface definition by WSDL • An external application first interprets the interface definition and invokes a Web-API via network

  31. HNS Integrated Services • The legacy appliances is Distributed components • A client application consisting of invocations of the Web-APIs and a control flow among the APIs

  32. Integrated Service (DVD theater)

  33. IMPLEMENTATION: NAIST-HNS • Legacy Appliances Used • Implementation of Legacy Adapter • NAIST-HNS Integrated Services • User Interfaces

  34. Legacy Appliances Used • Plasma display: NEC PX-50XM2 • DVD/HDD recorder: Toshiba RF-XS46 • Wireless LCD TV: Sony KLV-17WS1 • Ceiling light: Panasonic HHFZ5310 • Curtains with actuator: NAVIO Powertrack • Air cleaner: Hitachi EP-V12 • Air circulator: MORITA MCF-257NR • Power plug with IrRC: HORIBA IS-100 • Climate monitor (sensor): IT Watchdogs WxGoods-1

  35. Implementation of Legacy Adapter • PC:Celeron, 512MB, 80GB, WinXP Pro • IrRC I/F: Sugiyama Electron – Crossam2+USB • IrRC Driver: Serial COM library for Crossam2+USB • Ir-API: Java Native Interface(JNI)Wrapper • Service Layer: J2SE 5.0 • Web Service Layer: Apache AXIS 1.3

  36. NAIST-HNS Implementation States Log Ir-APIs Crossam Serial COM Library Crossam Programmable Remote Controllers

  37. NAIST-HNS Integrated Services • DVD Theater • Air Cleaning • Wakeup Support • Auto illumination

  38. HNS Experimental Room

  39. User Interfaces for NAIST HNS

  40. Response Time of Integrated Services STR: service response time DRT: device response time

  41. CONCLUSION • A framework that adapts the legacy home appliances to the emerging home network system • Features of the legacy appliances are exposed as self-contained Web-APIs with Web service • Future work includes the security issues and the feature interaction management

  42. END • 謝謝大家!!

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