Title:
RECEIVING TERMINAL, WIRELESS TRANSMISSION DEVICE, TRANSMITTING AND RECEIVING SYSTEM, RECEIVING METHOD, AND TRANSMITTING AND RECEIVING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/031258
Kind Code:
A1
Abstract:
This receiving terminal accurately performs position estimation for the receiving terminal, even when a wireless transmission device is not installed in the vicinity thereof, or a nearby wireless transmission terminal is out of order. The receiving terminal is provided with: a wireless receiving unit (210) which receives pieces of transfer data from a plurality of wireless transmission devices (100) and measures pieces of receiving power at the time when the pieces of transfer data are received; a transfer data information analysis unit (221) which acquires, from the wireless receiving unit, the pieces of transfer data and the pieces of receiving power, and extracts, from the pieces of transfer data, identification numbers for identifying installation positions of the wireless transmission devices; and a position estimation unit (222) which determines, on the basis of pieces of receiving power equal to or greater than a threshold among a plurality of pieces of receiving power, the number of identification numbers to be used in the position estimation for the receiving terminal from among the plurality of identification numbers that correspond to the plurality of pieces of receiving power, and which estimates the position of the receiving terminal on the basis of the positional relationships among the number of the wireless transmission devices that have transmitted the transfer data including the identification numbers to be used in the position estimation.
Inventors:
NAKATSUMA SAKI (JP)
YAMADA KAZUHIKO (JP)
INABA YUKITOSHI (JP)
YAMADA KAZUHIKO (JP)
INABA YUKITOSHI (JP)
Application Number:
PCT/JP2018/029592
Publication Date:
February 13, 2020
Filing Date:
August 07, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01S1/68; G01S5/02; H04W64/00
Domestic Patent References:
| WO2017085758A1 | 2017-05-26 |
Foreign References:
| JP2017067565A | 2017-04-06 | |||
| JP5792412B1 | 2015-10-14 | |||
| JP2017116389A | 2017-06-29 | |||
| JP2013090135A | 2013-05-13 | |||
| US20130065615A1 | 2013-03-14 |
Attorney, Agent or Firm:
MURAKAMI, Kanako et al. (JP)
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