Title:
OPTICAL FIBER SENSING SYSTEM, ROAD MONITORING METHOD, AND OPTICAL FIBER SENSING EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2021/038695
Kind Code:
A1
Abstract:
An optical fiber sensing system according to the present disclosure comprises: an optical fiber (10) that is disposed along a road R and that detects vibrations; a detection unit (21) that detects, from optical signals received from the optical fiber (10), the vibration patterns of vibrations arising due to a traffic accident which has occurred on the road R; and an estimation unit (22) that estimates the state of the traffic accident on the basis of the vibration patterns.
Inventors:
TANAKA TOSHIAKI (JP)
MIYAMOTO SHINICHI (JP)
MIYAMOTO SHINICHI (JP)
Application Number:
PCT/JP2019/033368
Publication Date:
March 04, 2021
Filing Date:
August 26, 2019
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G08G1/00
Foreign References:
| JPH1069594A | 1998-03-10 | |||
| JP2004252520A | 2004-09-09 | |||
| JP2009075000A | 2009-04-09 |
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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