Title:
ABNORMALITY SENSING SYSTEM, ABNORMALITY SENSING DEVICE, AND ABNORMALITY SENSING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/200747
Kind Code:
A1
Abstract:
The abnormality sensing system according to the present invention comprises: an optical fiber (10) for sensing the state of a metal wire (20) subjected to the effect of a magnetic force produced between a guideway (50) and a vehicle (60) of a maglev railway; a reception unit (30) for receiving, from the optical fiber (10), an optical signal including information indicating the effect of the magnetic force to which the metal wire (20) has been subjected; and a sensing unit (42) for sensing any abnormality in the vehicle (60) or the guideway (50) on the basis of the information, included in the optical signal, that indicates the effect of the magnetic force to which the metal wire (20) has been subjected.
Inventors:
KOBAYASHI AYUMI (JP)
Application Number:
PCT/JP2021/013108
Publication Date:
October 07, 2021
Filing Date:
March 26, 2021
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G01H9/00; B60L13/04
Foreign References:
| JPH07203605A | 1995-08-04 | |||
| JP2011211833A | 2011-10-20 | |||
| JP2018504603A | 2018-02-15 | |||
| JPH06217421A | 1994-08-05 | |||
| US20060202860A1 | 2006-09-14 |
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
Download PDF: