Position estimation system and mobile station

Patent metadata

Field	Value
Publication number	US-12593300-B2
Application number	US-202318196515-A
Country	US
Kind code	B2
Filing date	May 12, 2023
Priority date	Dec 18, 2020
Publication date	Mar 31, 2026
Grant date	Mar 31, 2026

Abstract

A position estimation system includes a beacon transmitter that transmits a beacon signal, a mobile station that receives the beacon signal from the beacon transmitter and transmits positioning data including ID information of the received beacon signal, and a position information server that estimates a position of the mobile station based on the positioning data transmitted from the mobile station, in which the mobile station includes a plurality of transmission means, and switches the transmission means for transmitting the positioning data based on the received beacon signal.

First claim

What is claimed is:

1 . A position estimation system comprising:
a beacon transmitter that transmits a beacon signal including specific ID information; a mobile station that receives the beacon signal (bs 1 ) from the beacon transmitter and transmits positioning data including the ID information of the beacon transmitter included in the received beacon signal (bs 1 ) and information on a received signal strength of the received beacon signal (bs 1 ); and a position estimation apparatus that estimates a position of the mobile station based on the ID information of the beacon transmitter included in the beacon signal (bs 1 ) received by the mobile station and the information on the received signal strength of the beacon signal (bs 1 ) received by the mobile station, which is included in the positioning data transmitted from the mobile station, wherein the mobile station comprises; a beacon receiving unit that receives a beacon signal, a first transmission unit that performs wireless communication using a first communication system, a second transmission unit that performs wireless communication using a second communication system having a shorter communicable distance than that of the first communication system, a storage unit that stores a transmission selection table in which the ID information of the beacon transmitter is associated with information on a transmission means and a transmission destination, and a control unit that generates the positioning data based on the beacon signal (bs 1 ) received by the beacon receiving unit so as to include the ID information of the beacon transmitter included in the received beacon signal (bs 1 ) and the information on the received signal strength of the received beacon signal (bs 1 ), and performs control as to which of the first transmission unit and the second transmission unit transmits the generated positioning data, and the control unit of the mobile station performs control to determine, based on the ID information included in the received beacon signal (bs 1 ), whether a transmission source of the beacon signal (bs 1 ) and the transmission selection table is an outdoor beacon transmitter or an indoor beacon transmitter, transmit the positioning data from the first transmission unit when it is determined that the transmission source of the received beacon signal (bs 1 ) is the outdoor beacon transmitter, and transmit the positioning data from the second transmission unit when it is determined that the transmission source of the received beacon signal (bs 1 ) is the indoor beacon transmitter.

2 . The position estimation system according to claim 1 , further comprising a first receiving apparatus connected to the position estimation apparatus and capable of performing wireless communication using the first communication system and a second receiving apparatus connected to the position estimation apparatus and capable of performing wireless communication using the second communication system,
wherein the mobile station switches, based on the ID information included in the received beacon signal (bs 1 ) and the transmission selection table, a transmission destination of the positioning data to the first receiving apparatus when it is determined that the transmission source of the received beacon signal (bs 1 ) is the outdoor beacon transmitter and switches the transmission destination of the positioning data to the second receiving apparatus when it is determined that the transmission source of the received beacon signal (bs 1 ) is the indoor beacon transmitter.

3 . A mobile station comprising:
a beacon receiving unit that receives a beacon signal (bs 1 ); a first transmission unit that performs wireless communication using a first communication system; a second transmission unit that performs wireless communication using a second communication system having a shorter communicable distance than that of the first communication system; a storage unit that stores a transmission selection table in which ID information of a beacon transmitter is associated with information on a transmission means and a transmission destination, and a control unit that generates positioning data based on the beacon signal (bs 1 ) received by the beacon receiving unit so as to include the ID information of the beacon transmitter included in the received beacon signal (bs 1 ) and information on a received signal strength of the received beacon signal (bs 1 ), and performs control as to which of the first transmission unit and the second transmission unit transmits the generated positioning data, wherein the control unit performs control to determine, based on the ID information included in the received beacon signal (bs 1 ) and the transmission selection table, whether a transmission source of the beacon signal is an outdoor beacon transmitter or an indoor beacon transmitter, transmit the positioning data from the first transmission unit when it is determined that the transmission source of the received beacon signal (bs 1 ) is the outdoor beacon transmitter, and transmit the positioning data from the second transmission unit when it is determined that the transmission source of the received beacon signal (bs 1 ) is the indoor beacon transmitter.

Assignees

• Jvckenwood Corp

Inventors

• MIYAKE Fumiaki
• Hosoya Kiyoshi
• Nakae Satoru

Classifications

• G01S5/0221

  Receivers · CPC title

• G01S5/0036 Primary

  of measured values, i.e. measurement on mobile and position calculation on base station · CPC title

• G01S2205/02

  Indoor · CPC title

• H04W64/00 Primary

  Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management · CPC title

• G01S11/06

  using intensity measurements · CPC title