Implementation of Node Update System using Virtual Area Technique

摘要

Sensor nodes constituting wireless sensor networks are set up at various environments and functions with their own specified purposes. Generally, sensor nodes are installed in the place where maintenance and repair cannot be easily conducted thus it is indispensable to develop a way to manage sensor nodes through wireless communication. The conventional way to renew the entire execution image is not appropriate for low electric consuming and low speed wireless communication circumstances. In this paper, we suggest a new system which allows partial update, not the entire update of execution image.