Title:
MOVEMENT-DISTANCE MEASUREMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/198441
Kind Code:
A1
Abstract:
Provided is a movement-distance measurement device (10) comprising: an antenna (12) for transmitting radio waves towards a plurality of reflectors (9) disposed at fixed disposition intervals along a movement path of a moving body and receiving reflected waves from the reflectors (9); a phase detection circuit (15) for detecting the phase of the reflected waves received by the antenna (12); a phase change amount calculation circuit (16) for calculating a change amount of the phase on the basis of the phase detected by the phase detection circuit (15); and a movement-distance calculation circuit (17) for calculating a movement distance of the moving body on the basis of the change amount of the phase calculated by the phase change amount calculation circuit (16) and the disposition intervals of the reflectors (9).
Inventors:
TAGUCHI HIROSHI (JP)
SADAMOTO KOTA (JP)
TSUJITA WATARU (JP)
SAWA YOSHITSUGU (JP)
ISHIKAWA MASAHIRO (JP)
SADAMOTO KOTA (JP)
TSUJITA WATARU (JP)
SAWA YOSHITSUGU (JP)
ISHIKAWA MASAHIRO (JP)
Application Number:
PCT/JP2018/000656
Publication Date:
November 01, 2018
Filing Date:
January 12, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01S13/60; B66B3/02
Domestic Patent References:
| WO2013105359A1 | 2013-07-18 |
Foreign References:
| JPS58205876A | 1983-11-30 | |||
| JPH0192680A | 1989-04-11 | |||
| JP2003052105A | 2003-02-21 | |||
| US5534871A | 1996-07-09 |
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
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