The anatomy of a context-aware application
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
The design and applications of a context service
ACM SIGMOBILE Mobile Computing and Communications Review
Aura: an Architectural Framework for User Mobility in Ubiquitous Computing Environments
WICSA 3 Proceedings of the IFIP 17th World Computer Congress - TC2 Stream / 3rd IEEE/IFIP Conference on Software Architecture: System Design, Development and Maintenance
EasyLiving: Technologies for Intelligent Environments
HUC '00 Proceedings of the 2nd international symposium on Handheld and Ubiquitous Computing
Providing Contextual Information to Pervasive Computing Applications
PERCOM '03 Proceedings of the First IEEE International Conference on Pervasive Computing and Communications
An infrastructure for context-awareness based on first order logic
Personal and Ubiquitous Computing
Semantic Space: An Infrastructure for Smart Spaces
IEEE Pervasive Computing
Context-Aware Computing Applications
WMCSA '94 Proceedings of the 1994 First Workshop on Mobile Computing Systems and Applications
Human-Computer Interaction
An infrastructure approach to context-aware computing
Human-Computer Interaction
Human-Computer Interaction
Ubi-UCAM: a unified context-aware application model
CONTEXT'03 Proceedings of the 4th international and interdisciplinary conference on Modeling and using context
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In this paper, we present a unique mechanism that enables seamless interconnection and scalability of the interface between the sensor platform layer and the middleware layer in pervasive computing. The disadvantages of using one-to-one hard coding for various device drivers and firmware for interfacing sensor platform and middleware layers are primarily a lack of flexibility and scalability when the system changes environments. The encapsulation of access point of the sensor platform layer provides developers and designers with an effective way of interconnecting and scaling up with diverse and various kinds of sensors and actuators. In this paper, we define encapsulation of the access point of the sensor platform layer. The module for encapsulating the detected sensor data is called ‘context representer'. The context representer converts detected sensor data to raw context. For interconnecting with the sensor platform layer and the middleware layer, ‘entity manager' module in the middleware layer for each entity of context representer is defined. The entity manager is for transforming the raw context to a general context. Then, the middleware is able to interact with context-aware applications according to the reasoning with context in the middleware layer, upper layer requests and lower layer status, without being influenced by a change of sensor node and sensor platform environments. We present the encapsulation mechanism and entity manager for efficient interfacing and scalability of contextaware applications and compare them with other approaches.