To make it possible to upgrade accuracy of estimating a location of a communication terminal by use of a radio wave to be received by the communication terminal from a plurality of transmission antennas.SOLUTION: A terminal location estimation device comprises: a response acquisition unit 302 that acquires reception magnetic field intensity of a radio wave being received by a reception antenna of a communication terminal and to be transmitted from a plurality of prescribed transmission antennas; and a terminal location estimation unit 303 that estimates a location of the communication terminal, using the reception magnetic field intensity to be acquired by the responce acquisition unit 302. The terminal location estimation unit 303 is configured to, when estimating the location of the communication terminal, estimate a location satisfying an approximate expression by the transmission antennas 31a, 31b, and 31c representing a magnetic intensity distribution by the transmission antennas 31a, 31b, and 31c by two variables of a distance from the transmission antenna to the location of the communication terminal and an angle in a direction where the communication terminal is located with respect to an axis direction of the transmission antenna within a prescribed range as the location of the communication terminal.SELECTED DRAWING: Figure 4
【課題】複数の送信アンテナから通信端末で受信する電波を用いて推定する通信端末の位置の精度をより向上させることを可能にする。【解決手段】通信端末の受信アンテナで受信する、所定の複数の送信アンテナ31a,31b,31cから送信される電波の受信磁界強度を取得する応答取得部302と、応答取得部302で取得する受信磁界強度を用いて、通信端末の位置を推定する端末位置推定部303とを備え、端末位置推定部303は、通信端末の位置を推定する際に、送信アンテナ31a,31b,31c別の磁界強度分布をその送信アンテナから通信端末の位置までの距離とその送信アンテナの軸方向に対して通信端末の位置する方向の角度との二変数で表す送信アンテナ31a,31b,31c別の近似式を所定の範囲内で満たす位置を、通信端末の位置として推定する。【選択図】図4
TERMINAL LOCATION ESTIMATION SYSTEM, TERMINAL LOCATION ESTIMATION DEVICE, TERMINAL LOCATION ESTIMATION METHOD AND CONTROL PROGRAM
端末位置推定システム、端末位置推定装置、端末位置推定方法、及び制御プログラム
2019-12-19
Patent
Electronic Resource
Japanese
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