masanori ogawara, nippon telegraph and telephone corporation (ntt)
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© 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?
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