OPERATING SYSTEM BASED OSEK AND ITS SOFTWARE UPDATE SYSTEM FOR WIRELESS SENSOR NODES

摘要

PURPOSE: An operating system based on OSEK(Open Systems and their Interfaces for the Electronics in Motor Vehicles) and a software update system thereof for wireless sensor nodes are provided to perform a software update function by using wireless communication with a software update manager. CONSTITUTION: An OS(Operating System) for sensor node observes the standard of an intelligent OS defined in an OSEK. A kernel is classified into the processing levels for an interrupt, a scheduler and a task. A service or object within each level has priority and a size and function depending on CC(Conformance Classes). A high speed ISP(In-System-Programming) module is inserted into the kernel, and an update manage of a GUI(Graphic User Interface) environment is operated in a PC.