Title:
光ファイバケーブル監視方法および光ファイバケーブル監視システム
Document Type and Number:
Japanese Patent JP6774451
Kind Code:
B2
Abstract:
An object of the present disclosure is to provide an optical fiber cable monitoring method and an optical fiber cable monitoring system capable of linking information obtained from a measurement result with information stored in a DB and accurately specifying a loss occurrence location on an optical fiber cable. The optical fiber cable monitoring method according to the present disclosure uses two types of optical fiber measurement techniques having different sensitivities. Each of closure locations on the optical fiber cable is acquired with a high-sensitivity measurement technique, and geographical location information and the closure locations on the optical fiber are linked in an arrangement order of the closures. Thus, an operator can recognize an actual location (geographical location information) of a closure that is linked to a location of a point of abnormality on the optical fiber cable when an abnormality in the closure is detected with a low-sensitivity measurement technique.
Inventors:
Koshikiya Yusuke
Atsushi Nakamura
Kazuki Nado
Tetsuya Manabe
Atsushi Nakamura
Kazuki Nado
Tetsuya Manabe
Application Number:
JP2018040117A
Publication Date:
October 21, 2020
Filing Date:
March 06, 2018
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
G01M11/00; H04B10/071
Domestic Patent References:
| JP2003229823A | ||||
| JP2008124573A | ||||
| JP2017203626A |
Foreign References:
| CN106788696A |
Attorney, Agent or Firm:
Kenji Okada
Katsuhiro Imashita
Katsuhiro Imashita