关键词: 普适计算, 中间件, 上下文质量, 上下文感知, Agent

Abstract:

With the rapid development of information technology, it is inevitable that the distributed mobile computing has been gradually evolving to the pervasive computing, whose final goal is fusing the information space composed of computers with the physical space where the people are working and living. To achieve this objective, one of the problems is how to continuously monitor/capture and interpret the environment related information efficiently so as to assure high context awareness. Many attentions have been paid to the research of the contextaware pervasive applications. However, most of them just use the raw context directly or take just some aspects of the Quality of Context (QoC) into account. Therefore, proposes an agent based contextaware framework that support QoC management in various layers. By this framework, we can use threshold Agent, quality factor configuration Agent, duplicate and inconsistent management Agent to implement control mechanisms for various layers, thus providing contextaware services and application users with efficient and reliable context information.

Key words: pervasive computing;middleware;quality of context;contextaware;agent