【摘要】 提出了基于传感器网络环境的上下文感知应用开发中间件原型的体系结构MidCASE,重点阐述了中间件的体系结构设计和软件运行时基于服务的分布式运行架构。讨论了上下文感知过程中的两个关键问题,包括上下文信息建立的方法和感知过程中上下文信息与高层通信的调度模型。最后,以该中间件原型为基础,通过在医疗护理的场景下实现上下文感知应用并证明了其易用性与支撑作用。更多还原

【Abstract】 Architecture of middleware prototype was proposed to support context-awareness development under sensor networks environment,and the design principle of system architecture as well as service-oriented runtime mechanism were emphasized.Then two critical problems were discussed,including method of forming context information and schedule model between context information and high layer in process of awareness.Finally,with the basis of this middleware prototype,the convenience and supporting effect were proved through implementing the specific application which was under healthcare scenarios.更多还原