Patent ID: 7898471

Claim:
A power-saving position tracking device, comprising: a central processing unit; a short-distance wireless communication unit, electrically coupled to the central processing unit, for establishing a wireless connection with a short-distance wireless transceiver, and tracking the position of the power-saving position tracking device; a GPS receiving unit, electrically coupled to the central processing unit, for receiving a satellite signal to position the power-saving position tracking device and output position information; and a mobile communication unit, electrically coupled to the central processing unit, for transmitting the position information to a remote control center; wherein, if a signal intensity of the wireless connection between the power-saving position tracking device and the short-distance wireless transceiver is greater than a threshold, then the central processing unit will drive the GPS receiving unit and the mobile communication unit to enter into a power saving mode; on the other hand, if the signal intensity of the wireless connection between the power-saving position tracking device and the short-distance wireless transceiver is smaller than a threshold, then the central processing unit will drive the short-distance wireless communication unit to enter into a power saving mode.