USN NODE, INFORMATION SERVICE SYSTEM USING NETWORK AND SERVICE SERVER CONNECTABLE TO USN SENSOR THOUGH NETWORK

摘要

An information service system using a USN(Ubiquitous Sensor Network) node and a communication network and a service server connectable to a USN sensor through the communication network are provided to integratedly operate USNs by one service server, thereby reducing a waste of resources as realizing a low-priced installation and operation cost. USN nodes(N1-N7) sense a situation of a jurisdictional area, add self intrinsic codes to the sensed information to wirelessly transmit the information, and wirelessly relay information one another. Gateways add self ID codes to the information received from the USN nodes, and transmit the information to an external network. A service server(S1) is equipped in the external network, receives the information transmitted from the gateways, and perceives the gateways through the ID codes, then perceives the sensed USN nodes to update the sensed information at data tables allocated to the gateways.