普适计算环境下的设备动态更新机制

摘要

Devices are the key of the pervasive computing applications to acquire the context changing and also take the responding actions. Since device updating happens occasionally in a running pervasive application, it is necessary to study how to minimize the cost of renewal to popularize the application. Based on our former work, which is an adaptive and scalable context-aware architecture for pervasive computing and its prototype is implemented based on OSGi/R-OSGi, this paper proposes a dynamic updating mechanism of devices to solve the problem related with the device heterogeneity. With this mechanism the developers of the application need not to be involved in device updating.%普适计算应用中的设备是情境感知的载体和情境感知行为的执行者,起着关键性的作用.在一个持续运行的普适计算系统中,设备的损坏和更新是时有发生的,如何让用户以最小的代价完成设备的更新是该系统得以广泛应用的基础.本文在前期给出的基于OSGi/R-OSGi的普适计算框架基础上,提出了一种不需要系统开发人员介入的设备动态更新机制,以解决设备更新时存在的异构性问题.