Abstract:

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.

Key words: pervasive computing；device updating；OSGi；heterogeneity