Patent ID: 8823584

Claim:
A position detection device comprising: a first position obtaining unit that obtains position information by receiving a GPS (Global Positioning System) signal; a second position obtaining unit that obtains position information based on information obtained from a plurality of peripheral base stations; a position information obtainment determining unit that determines whether or not the first position obtaining unit obtains position information; a movement detection unit that detects a movement of the first position obtaining unit; a first ON and OFF state control unit that controls ON and OFF states of the first position obtaining unit based on a result detected by the movement detection unit or a result determined by the position information obtainment determining unit; a second ON and OFF state control unit that controls ON and OFF states of the second position obtaining unit based on a result determined by the position information obtainment determining unit; a monitor cycle control unit that controls a monitor cycle that the first position obtaining unit obtains position information based on a result detected by the movement detection unit or a result determined by the position information obtainment determining unit; and an output unit that selects and outputs one of two pieces of position information obtained by the first position obtaining unit and the second position obtaining unit.