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Title:
DETECTION SYSTEM, DETECTION DEVICE, AND DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/259346
Kind Code:
A1
Abstract:
A detection system according to the present disclosure is provided with an optical fiber (30) that is buried in or near an embankment (20) of a river (10), a communication unit (41) that receives, from the optical fiber (30), an optical signal including a pattern indicating that the optical fiber (30) has been exposed, and a detection unit (51) that detects the collapse of the embankment (20) on the basis of the pattern.

Inventors:
YODA YUKIHIDE (JP)
MORI KOYO (JP)
IWANO TADAYUKI (JP)
Application Number:
PCT/JP2021/021661
Publication Date:
December 15, 2022
Filing Date:
June 08, 2021
Export Citation:
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Assignee:
NEC CORP (JP)
International Classes:
E02B3/00
Domestic Patent References:
WO2021029186A12021-02-18
Foreign References:
JP2007292530A2007-11-08
JP2000046597A2000-02-18
JP2007127534A2007-05-24
JP2007101274A2007-04-19
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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