System and method for managing senor node in rfid/usn infrastructure and gateway system used therefor

A gateway system used for interaction between a sensor network and an Internet Protocol (IP) network, comprising:

• a gateway for requesting to a sensor node having a local IDentifier (ID) in the sensor network, node information including the local ID and an ID of a home gateway to which the sensor node initially belongs, and registering the node information about the sensor node to a location information server;
• and
• the location information server for registering and managing node information about sensor nodes within an area of the gateway, wherein the location information server includes a home location information server for registering and managing node information about a sensor node for which the gateway is a home gateway, and a visiting location information server for registering and managing node information about a visiting sensor node which has moved to the gateway, and the location information server generates a global ID using the local ID and the ID of the home gateway, the global ID being recognized as an address of the sensor node by the IP network.

A sensor node management method in a Radio Frequency Identification/Ubiquitous Sensing Network (RFID/USN) infrastructure, comprising:

• performing node information registration by receiving from a sensor node having a local ID in a sensor network node information including the local ID and an ID of a home gateway to which the sensor node initially belongs by a gateway, and registering the node information about the sensor node to a location information server that manages node information about sensor nodes within an area of the gateway by the gateway;
• and
• performing node information management by generating a global ID using the local ID and the ID of the home gateway by the location information server, the global ID being recognized as an address of the sensor node by an Internet Protocol (IP) network.