Title:
POSITION ESTIMATION DEVICE, POSITION ESTIMATION METHOD, AND POSITION ESTIMATION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2021/106677
Kind Code:
A1
Abstract:
In the present invention, a position information server (10) comprises: an acquisition unit (101) that acquires, from each of a plurality of receivers (3), the reception signal strength of a wireless signal transmitted from a transmitter (2); an estimation unit (102) that estimates the position of the transmitter (2) on the basis of the top first through third reception signal strengths, from among the acquired reception signal strengths; and a correction unit (103) that corrects the estimated transmitter position on the basis of a fourth-from-the-top reception signal strength, if the difference between a reception signal strength based on at least one of the top first through third reception signal strengths and the fourth-from-the-top reception signal strength is less than a prescribed value.
Inventors:
MIYAKE FUMIAKI (JP)
Application Number:
PCT/JP2020/042757
Publication Date:
June 03, 2021
Filing Date:
November 17, 2020
Export Citation:
Assignee:
JVCKENWOOD CORP (JP)
International Classes:
G01S5/14
Domestic Patent References:
| WO2006132003A1 | 2006-12-14 |
Foreign References:
| JP2009281793A | 2009-12-03 | |||
| JP2006071516A | 2006-03-16 | |||
| JP2016048205A | 2016-04-07 | |||
| EP2192421A1 | 2010-06-02 | |||
| KR101650077B1 | 2016-08-23 | |||
| JP2012202747A | 2012-10-22 | |||
| JP2018136209A | 2018-08-30 |
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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