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OSGi Based Service Infrastructure for Context Aware Connected Homes

Abstract. This paper presents an OSGi based service infrastructure for delivering, managing and developing context aware services in connected homes. An OSGicompliant residential gateway (RG) is deployed in connected homes to bridge the Internet and the ho

OSGi Based Service Infrastructure for Context

Aware Connected Homes

Daqing ZHANG Xiaohang WANG Karianto LEMAN Weimin HUANG Institute for Infocomm Research, 21 Heng Mui Keng Terrace, Singapore 119613

{daqing, xwang, karianto, wmhuang}@i2r.a-star.edu.sg

Abstract. This paper presents an OSGi based service infrastructure for delivering, managing and developing context aware services in connected homes. An OSGi-compliant residential gateway (RG) is deployed in connected homes to bridge the Internet and the home networks and devices. A device access system architecture has been embedded in RG and devices to facilitate device discovery, capability sharing and interoperability. Context information has been acquired, delivered, processed and derived using a novel context aware service architecture on top of the OSGi framework. A prototype has been implemented to verify the feasibility of the new service infrastructure.

Introduction

With the development of Internet broadband access, wireless communication, smart sensors/devices and home networking technologies, smart home has been a hot area for research and development in both academia and industry [1]. A smart home is a networked system of intelligent appliances fitted into the home to meet the different needs of the inhabitants. Smart homes may provide people security, energy saving, convenience and a better lifestyle, they may also provide the aged and disabled people better support for independent living, daily activities and social interaction [2]. For example, you may be notified with an MMS message when your home surveillance system detects that intruders want to enter your house or your grandfather fall down from the armchair, your favorite TV program can be recorded in your PC at the touch of a button, you may talk to your kids through a video IP phone when they are back home for your help, the forgetful grandmother can be warned by a voice message when the water runs for a long time, and the volume of TV and HiFi can be lowered automatically while the phone rings, etc.. Apparently the above mentioned scenarios can be implemented in different ways, but a flexible hardware and software infrastructure for smart home is needed to support system scalability, interoperability and context awareness.

So far, various preliminary smart home solutions have been developed, they can be roughly classified into three categories:

Device-oriented infrastructure: focuses mainly on the device discovery and interoperability in home networks.

Service-oriented infrastructure: focuses on service delivery, management and provisioning from Internet to home network and devices.

Feature-oriented infrastructure: purely proprietary and exploratory, emphasizes on exploring specific features without caring about the whole smart home solution.

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