masanori ogawara, nippon telegraph and telephone corporation (ntt)

© copyright 2004 by OSGi Alliance All rights reserved.

“Home Service Harmony", Home Service Control Platform based on the OSGi Framework

Masanori Ogawara, NTT Corporation

© copyright 2004 by OSGi Alliance. All rights reserved.

Outline

• Background• Service concept• Home Service Harmony• Prototype system• Summary

© copyright 2004 by OSGi Alliance. All rights reserved.

Background

InternetADSLFTTH

Server

Homegateway

STB

Sensor

DB

Accessnetwork

WAN Home network

Storage

WirelessLAN

Home network model

© copyright 2004 by OSGi Alliance. All rights reserved.

Home service concept

• Present services offered by using several appliances

– Ex. video phone (TV monitor, video camera, microphone, speaker, network bandwidth, phonebook)

• Human-oriented control between different services

– Ex. changing devices, service-styles, etc.

© copyright 2004 by OSGi Alliance. All rights reserved.

Home network service example

Home #1 Home #2

HGW HGW

video

audio

vide

o

audio

Video phone service

Internet

© copyright 2004 by OSGi Alliance. All rights reserved.

Context analysis

1F Living

schedule

Environment Communicationpeer Location Preference

Various contextual information

Age: 40Home: TokyoHobby: AV

profile

© copyright 2004 by OSGi Alliance. All rights reserved.

Context change in multi-service

Phone call Time

Video phoneTV

Baby monitoring

ChangeTV program

Baby crying

Ser

vice

prio

rity

Audio/visualcommunication

service

Phone call

TV

Baby monitoring

© copyright 2004 by OSGi Alliance. All rights reserved.

Situation: While watching TV, video phone rings...

1. Procedures to manually control and change services are complicated and different every time.

2. Desired action depends on contexts.

3. Service mediation, based on network and hardware resources, is not sufficient.

Problems in multi-service

© copyright 2004 by OSGi Alliance. All rights reserved.

Preferable service mediation

Concurrent servicesSingle offer

Exclusive service

(c) Changedevice

(d) Changeservice-style

(a) Pauselower-priority

service(b) Resize

window

Most suitable mediation is not always the same!

© copyright 2004 by OSGi Alliance. All rights reserved.

Home Service Harmony

a home network service composition and mediation platform.

mediates between services for human-oriented control.

© copyright 2004 by OSGi Alliance. All rights reserved.

Requirements of Home Service Harmony

• Service composition, using functions of various appliances

• Reduction in user operation/configuration• Generalized control algorithm enables

addition of new services dynamically• Administration of the appliances in the home

network• Administration of the services in the home

network• ･･･

© copyright 2004 by OSGi Alliance. All rights reserved.

Key technologies

• Administration of resources and services • Modeling of the user's capacity to access

a service

© copyright 2004 by OSGi Alliance. All rights reserved.

Administration technology

Service manager

Service #1 Service #n

Resourcemanager Resource #1 Resource #n

OSGi service platform

monitoring

accessResource allocation

information

Resourceallocation

Realresource

Realresource

© copyright 2004 by OSGi Alliance. All rights reserved.

Resource manager

manages home network resources forces services to keep a resource allocation.

TVA

Resourcemanager

100TELBService n

…

70TVAService 1

TELB

Resource allocation database

Resource Resource

© copyright 2004 by OSGi Alliance. All rights reserved.

Service manager

Controlling resource allocation to services based on information such as:

- resource information- requirement and priority of services - user and environmental contexts

Servicemanager

Service #1 Service #n-1 Service #n

Resource allocation

© copyright 2004 by OSGi Alliance. All rights reserved.

Modeling of user capacities

Watch video TelephoneWatch video

user's ability to access the service,such as hearing, seeing and speaking capacities

Human-oriented control

Introduce new type of resources (user resources)

© copyright 2004 by OSGi Alliance. All rights reserved.

Prototype configuration

HGWHGW

AV controller/video library

Telephone

Internet

RF tag

SW

AV controller

Telephone

Private room

Living room

SW

Private room

Living room

Telephone

Telephone

AVcontroller

AV controller

RF tag

RFIDReceiver

RFIDReceiver

RFIDReceiver

RFIDReceiver

SIPserver

Home #1 Home #2

© copyright 2004 by OSGi Alliance. All rights reserved.

Services in prototype

• TV service• Video on demand service• Video transfer service• Audio service• IP telephone service• Door phone service• Basic home security service

© copyright 2004 by OSGi Alliance. All rights reserved.

Demonstration video

© copyright 2004 by OSGi Alliance. All rights reserved.

Summary

• Home Service Harmony is a home network service composition / mediation platform that mediates between services for a human-oriented control.

– Introduction of user resources– Administration of services and resources

• Next step in Home Service Harmony– Learning and recording user’s actions

© copyright 2004 by OSGi Alliance All rights reserved.

Thank you. Any Question?