公开(公告)号：US20190274116A1

公开(公告)日：2019-09-05

申请号：US16418449

申请日：2019-05-21

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenji HAYASHIKOSHI ,  Atsuto KOMODA ,  Shinya HARADA ,  Nobumitsu AMACHI

IPC: H04W64/00 ,  G01S5/14 ,  G01S11/06 ,  G01C21/20

Abstract: A position estimation system (11) includes: a plurality of fixed stations (100a-100d) installed inside a building, the plurality of fixed stations (100a-100d) each measuring the signal strength of a radio signal transmitted from a mobile object (300); and a calculator configured to estimate a position of the mobile object (300) based on the signal strengths measured at the plurality of fixed stations (100a-100d), wherein each of the plurality of fixed stations (100a-100d) is installed in such a position that a distance to a top part of the mobile object (300) is equal to or less than a predetermined distance when the mobile object (300) is directly below the fixed station (100a-100d).