SURVEILLANCE AND RECONNAISSANCE SENSOR NETWORK SYSTEM AND CONTROLING METHOD THEREOF

PURPOSE: A monitoring sensor network system and a control method are provided to supply a low power operation method and a communication protocol appropriate for a limited number of nodes, a wide arrangement interval between nodes, a requirement for a long operation time, etc. CONSTITUTION: A relay node(200) controls a short-distance wireless frequency state or a long-distance wireless frequency state for data transmission. The relay node receives detection information transmitted from a sensor node. The relay node transmits the received detection information. A C2 terminal(300) receives the detection information transmitted from the relay node. The C2 terminal analyzes the received detection information. The C2 terminal outputs an analyzed result. [Reference numerals] (100) Sensor node; (200) Relay node; (300) C2 terminal;