System for tracking location of a user and method of embodying a location tracking device in the same

PURPOSE: A location tracking device is provided to accurately trace the location of the object of protection from the criminal by preventing the exposure of the location tacking device. CONSTITUTION: The global positioning system is installed inside the tooth(100). The location tracking device(110) detects the location of the object of protection through the GPS satellite. The location tracking device transmits the information about the detected location with the terminal. The terminal is composed of the minor including the radio communications ability like the cellular phone and notebook. The location tracking device can be located on the top of the pulp cavity of the tooth. The power supply unit(112) is connected through the wire(114) to the tracking device. According to pressure, the power supply unit is composed of the piezoelectric element.