LOCATION ESTIMATION SYSTEM USING DIRECTION ANGLE IN SENSOR NETWORK AND METHOD THEREOF

PURPOSE: An intruder location estimating system and method are provided to precisely detect and trace an intruder by giving a feedback of target location information to a sensor node after estimating the location of the intruder based on a directional angle transmitted from the sensor node. CONSTITUTION: A plurality of sensor nodes(100) calculates vibration signal detecting time difference of other vibration sensor about a reference sensor. The plurality of sensor nodes estimates a directional angle for trespassing location of an intruder using the calculated vibration signal detecting time difference and propagation speed of a vibration signal. A central server estimates the location of the intruder using location information of each sensor node received from the each node through network, arrangement angle information, and the directional information of the intruder.