MONITORING SYSTEM, MONITORING DEVICE, AND MONITORING METHOD

Title:

MONITORING SYSTEM, MONITORING DEVICE, AND MONITORING METHOD

Document Type and Number:

WIPO Patent Application WO/2021/176581

Kind Code:

A1

Abstract:

This monitoring system comprises: an optical fiber (10) for detecting an ambient environmental state; a monitor terminal (40); a reception unit (20) for receiving, from the optical fiber (10), an optical signal including information indicating the environmental state; a detection unit (32) for detecting at least one from among an accident and an event on the basis of the information indicating the environmental state that is included in the optical signal; and a notification unit (33) for notifying the monitor terminal (40) that an accident or event has occurred if the detection unit (32) determines that an accident or event has occurred.

Inventors:

KITAHARA YOSHINORI (JP)
AONO YOSHIAKI (JP)
SAKURAI YUUSUKE (JP)
IWANO TADAYUKI (JP)

Application Number:

PCT/JP2020/009053

Publication Date:

September 10, 2021

Filing Date:

March 04, 2020

Export Citation:

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Assignee:

NEC CORP (JP)

International Classes:

G01H9/00; G08B17/00; G08B21/24

Foreign References:

JP2017134673A	2017-08-03
JP2019537721A	2019-12-26
JP2016040685A	2016-03-24
JP2009037438A	2009-02-19