| 摘要 |
PURPOSE: A hierarchical sensor network structure and a resource identifier issue method thereof are provided to hierarchically grant a resource identification system to individually access and control resources of a sensor network. CONSTITUTION: A gateway(20) receives a sensing request. The gateway transmits the received sensing request to a sensor node. The gateway receives and collects sensing information from the sensor node to provide the same. Each of clients(10-10_n) transmits the sensing request to a lower layer of the gateway through the gateway. Each of clients receives the sensing information. [Reference numerals] (10) Client; (10_n) Client (n); (20) Gateway; (30) Sensor node |
