状态自动机支持的环境感知应用框架研究

Study on Context Awareness Application Framework Based on State Machine

环境感知是普及计算中一个重要的研究领域。为了便于开发环境感知应用程序,许多研究者已经提出了一些环境感知应用框架。然而,目前的一些环境感知应用框架侧重于让应用程序直接订阅或查询相关的环境信息,使得开发者需要关注众多的环境信息且要定义许多相似的规则来区分众多不同的操作,造成了开发和修改环境感知的应用程序仍存在着较多的困难。为解决这些问题,本文在研究环境感知应用框架的基础上,引入了信息空间环境状态的概念,提出了一种基于状态自动机的环境感知改进框架BS-CTK,并设计和实现了相应的组件以支持基于状态自动机的环境感知应用开发。

Context awareness is one of important research areas in the pervasive computing research. Many researchers have proposed some context awareness application frameworks in order to facilitate the development of context awareness applications. However, many context awareness application frameworks tend to let application subscribe or query related context information directly. Developers should try to pay attention to many kinds of context information and relationship among them and define many similar rules to identify different actions. Aiming at solving these problems, a concept of environmental state in the information space is introduced and a kind of improved context awareness application framework based on state machine is presented on the base of frameworks research. Also, some components are designed to support context awareness application development based on state machine.