| 摘要 |
PROBLEM TO BE SOLVED: To provide a position specification system for a mobile communication terminal, capable of specifying a position of a mobile terminal when existing communication systems are caused to be in an uncommunicatable state at the time of disaster or the like.SOLUTION: Each of a plurality of electric wave reception devices 30 acquires a distance and an azimuth direction of a mobile communication terminal 40 on the basis of an intensity of an electric field where a transmission electric wave of the mobile communication terminal 40 is received while rotating orientation direction of a directional antenna 32 at a base point detected by a GPS reception part 34 and an initial point detected by an electronic direction compass needle 35. Each of the electric wave reception devices 30 transmits the acquired distance and azimuth direction of the mobile communication terminal 40 from the electric wave reception device 30 to a position analysis server 10. The position analysis server 10 specifies a position of the mobile communication terminal 40 on the basis of the distance and azimuth direction from the mobile communication terminal 40 received from each of the electric wave reception devices 30. |
