An Application of Context Middleware Based on Fuzzy Logic for Wireless Sensor Networks

Abstract

The research of context-aware computing based on wireless sensor network (WSN) aims at intelligently connecting computers, users, and environment. So its application system should be flexibly adaptable to dynamic changes of context and application requirements and proactively provides the information satisfied with current context for users. The middleware can be very effective to provide the support runtime services for context-aware computing. In this paper we propose middleware architecture for context processing. This architecture is based on fuzzy logic control (FLC) system for context reasoning and sensor fusion. We propose a formal context representation model in which a user's context is described by a set of roles and relations correspond to a context space. A middleware prototype has been developed, which detect tourist' physical context and provide reminding. The experiments prove that the model and approach proposed are feasible.

SensoTrust: Trustworthy Domains in Wireless Sensor Networks

“…Another challenge is the existence of different types of devices and platforms: there is no standardization in this kind of sensors nodes so it is desirable to abstract the hardware features by means of high-level abstract functions. This can be done with an intermediate level, called middleware [2].…”