JPWO2021193807A5 - - Google Patents
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- Publication number
- JPWO2021193807A5 JPWO2021193807A5 JP2022510651A JP2022510651A JPWO2021193807A5 JP WO2021193807 A5 JPWO2021193807 A5 JP WO2021193807A5 JP 2022510651 A JP2022510651 A JP 2022510651A JP 2022510651 A JP2022510651 A JP 2022510651A JP WO2021193807 A5 JPWO2021193807 A5 JP WO2021193807A5
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- identifying
- sagging
- detecting
- pulsed light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000013307 optical fiber Substances 0.000 claims 18
- 230000007613 environmental effect Effects 0.000 claims 8
- 238000007665 sagging Methods 0.000 claims 6
- 238000001514 detection method Methods 0.000 claims 5
- 239000000835 fiber Substances 0.000 claims 3
- 238000000034 method Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 230000002123 temporal effect Effects 0.000 claims 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023112806A JP7517555B2 (ja) | 2020-03-26 | 2023-07-10 | 特定システム、特定装置および特定方法 |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020055613 | 2020-03-26 | ||
| JP2020055613 | 2020-03-26 | ||
| PCT/JP2021/012488 WO2021193807A1 (ja) | 2020-03-26 | 2021-03-25 | 特定システム、特定装置および特定方法 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023112806A Division JP7517555B2 (ja) | 2020-03-26 | 2023-07-10 | 特定システム、特定装置および特定方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPWO2021193807A1 JPWO2021193807A1 (https=) | 2021-09-30 |
| JPWO2021193807A5 true JPWO2021193807A5 (https=) | 2022-10-12 |
| JP7343043B2 JP7343043B2 (ja) | 2023-09-12 |
Family
ID=77891876
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022510651A Active JP7343043B2 (ja) | 2020-03-26 | 2021-03-25 | 特定システム、特定装置および特定方法 |
| JP2023112806A Active JP7517555B2 (ja) | 2020-03-26 | 2023-07-10 | 特定システム、特定装置および特定方法 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023112806A Active JP7517555B2 (ja) | 2020-03-26 | 2023-07-10 | 特定システム、特定装置および特定方法 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20230078369A1 (https=) |
| JP (2) | JP7343043B2 (https=) |
| WO (1) | WO2021193807A1 (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117830915A (zh) * | 2022-09-29 | 2024-04-05 | 华为技术有限公司 | 一种光缆下垂识别方法和装置 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02187641A (ja) * | 1989-01-17 | 1990-07-23 | Fujikura Ltd | 光ファイバ線路状態の監視方法 |
| JP3222046B2 (ja) * | 1995-10-09 | 2001-10-22 | 株式会社フジクラ | 光ファイバ歪測定装置 |
| JP2006145465A (ja) * | 2004-11-24 | 2006-06-08 | Japan Atomic Energy Agency | マルチ情報計測用光ファイバ |
| US20080011514A1 (en) * | 2006-07-14 | 2008-01-17 | Tenvera, Inc. | Optical Fiber Distribution Apparatus and Method |
| JP4819165B2 (ja) * | 2010-01-13 | 2011-11-24 | 株式会社日立製作所 | 光通信システム及びその監視方法 |
| JP6277141B2 (ja) * | 2015-02-02 | 2018-02-07 | 日本電信電話株式会社 | 分岐を有する長距離光ファイバの試験方法、及び装置 |
| US10205552B2 (en) * | 2017-01-20 | 2019-02-12 | Cox Communications, Inc. | Optical communications module link, systems, and methods |
| US10571509B2 (en) * | 2017-10-17 | 2020-02-25 | Facebook, Inc. | Systems and methods for distributed sensing of a powerline conductor |
| US11512584B2 (en) * | 2020-01-31 | 2022-11-29 | Halliburton Energy Services, Inc. | Fiber optic distributed temperature sensing of annular cement curing using a cement plug deployment system |
-
2021
- 2021-03-25 JP JP2022510651A patent/JP7343043B2/ja active Active
- 2021-03-25 WO PCT/JP2021/012488 patent/WO2021193807A1/ja not_active Ceased
- 2021-03-25 US US17/802,260 patent/US20230078369A1/en not_active Abandoned
-
2023
- 2023-07-10 JP JP2023112806A patent/JP7517555B2/ja active Active
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