ELECTRONIC SUPERVISION SYSTEM AND METHOD THEREOF

An electronic supervision system and a method thereof are provided to calculate the current location of a specific target through location information acquired through a satellite and a BS(Base Station) more accurately, thereby supervising the specific target accurately and easily. An electronic supervision system includes a sticked device(110), a tracking device(120), a monitoring device(130), a PDE(Position Determination Entity)(165), and a server(180). The sticked device is fastened to a specific target. The tracking device can move with the specific target and communicate with the sticked device. The monitoring device can not move with the specific target and communicate with the sticked device. The PDE calculates the current location of the specific target by using location information acquired through at least one of a satellite and a mobile communication network. The server can communicate with the tracking device and the monitoring device and receive information about the current location of the specific target from the PDE. If the sticked device is positioned in a location where the sticked device can communicate with the monitoring device, the sticked device maintains communication with the monitoring device. If not, the sticked device maintains communication with the tracking device.