| 摘要 |
<p>The present invention relates to a ubiquitous sensor network system. The ubiquitous sensor network system comprises: a plurality of sensor nodes sensing an event occurrence in a corresponding installation area; one or more synchronous nodes which collect sensing data transmitted from the sensor nodes and process corresponding information; and a gateway which transmits the data processed in the synchronous nodes into or outside a system, wherein the synchronous nodes are characterized in propagating information on its data processing status to the sensor nodes according to a broadcasting scheme. According to the present invention, high speed data processing is realized, and system efficiency and endurance can be increased by minimizing the loads applied on the sensor nodes and the synchronous nodes. Also, reliability of the ubiquitous sensor network (USN) system can be improved by actively and selectively determining an information transmission path according to the information processing status. In particular, the ubiquitous sensor network system can be optimized for ultra high rise buildings where nodes are tightly arranged.</p> |
