Implementation method of operating system for wireless sensor nodes easy to perform remote code update

摘要

PURPOSE: An implementation method of an operating system for wireless sensor nodes easy to perform remote code update is provided to save the energy and the time required for updating a code through a wireless network by only transferring an application process image. CONSTITUTION: A remote code update manager transfers an alarm message to remote nodes, and the node confirms process information included in the message. When a process exists, the nodes confirm the update version. If the process is a new process, the nodes confirm the space for loading the process. The nodes receive and store process image data transmitted together with a download message.