JPWO2021070222A5 - - Google Patents
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- Publication number
- JPWO2021070222A5 JPWO2021070222A5 JP2021550955A JP2021550955A JPWO2021070222A5 JP WO2021070222 A5 JPWO2021070222 A5 JP WO2021070222A5 JP 2021550955 A JP2021550955 A JP 2021550955A JP 2021550955 A JP2021550955 A JP 2021550955A JP WO2021070222 A5 JPWO2021070222 A5 JP WO2021070222A5
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- sensing information
- optical signal
- receiving unit
- sensing
- 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 24
- 230000003287 optical effect Effects 0.000 claims 23
- 238000012544 monitoring process Methods 0.000 claims 11
- 239000000835 fiber Substances 0.000 claims 2
- 238000000034 method Methods 0.000 claims 2
- 238000001914 filtration Methods 0.000 claims 1
Images
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2019/039486 WO2021070222A1 (ja) | 2019-10-07 | 2019-10-07 | 光ファイバセンシングシステム、光ファイバセンシング方法、及び光ファイバセンシング装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPWO2021070222A1 JPWO2021070222A1 (https=) | 2021-04-15 |
| JPWO2021070222A5 true JPWO2021070222A5 (https=) | 2022-05-25 |
| JP7315014B2 JP7315014B2 (ja) | 2023-07-26 |
Family
ID=75437036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021550955A Active JP7315014B2 (ja) | 2019-10-07 | 2019-10-07 | 光ファイバセンシングシステム、光ファイバセンシング方法、及び光ファイバセンシング装置 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US12117336B2 (https=) |
| JP (1) | JP7315014B2 (https=) |
| WO (1) | WO2021070222A1 (https=) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12467822B2 (en) * | 2020-08-31 | 2025-11-11 | Nec Corporation | Utility pole deterioration discrimination device and method |
| US11733070B2 (en) * | 2021-03-03 | 2023-08-22 | Nec Corporation | Street light operating status monitoring using distributed optical fiber sensing |
| US12078528B2 (en) * | 2021-07-22 | 2024-09-03 | Nec Corporation | Fiber sensing using supervisory path of submarine cables |
| US11676465B1 (en) * | 2021-08-04 | 2023-06-13 | The United States Of America As Represented By The Secretary Of The Navy | Fire detection and conflagration event monitoring and diagnosis system |
| WO2023021598A1 (ja) * | 2021-08-18 | 2023-02-23 | 日本電気株式会社 | 情報処理装置、情報処理方法、コンピュータ可読媒体、及び点検システム |
| US20240427912A1 (en) * | 2021-09-28 | 2024-12-26 | Nec Corporation | Data providing system, data providing apparatus, and data providing method |
| WO2023073914A1 (ja) * | 2021-10-29 | 2023-05-04 | 日本電気株式会社 | 光ファイバセンシングシステム、光ファイバセンシング機器、及び光ファイバセンシング方法 |
| US20240411911A1 (en) * | 2021-11-08 | 2024-12-12 | Nec Corporation | Data providing system, data providing apparatus, and data providing method |
| WO2023209758A1 (ja) * | 2022-04-25 | 2023-11-02 | 日本電気株式会社 | センシングシステム、センシング機器、及びセンシング方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0620177A (ja) * | 1992-07-03 | 1994-01-28 | Mitsubishi Electric Corp | 繰り返し操作機構の異常検出装置 |
| JP2002269656A (ja) | 2001-03-12 | 2002-09-20 | Foundation Of River & Basin Integrated Communications Japan | 河川情報提供システム |
| JP4027107B2 (ja) * | 2002-02-06 | 2007-12-26 | 沖電気工業株式会社 | 土砂異常検出装置、土砂異常検出システム、及び土砂異常検出方法 |
| US20050082467A1 (en) * | 2003-10-21 | 2005-04-21 | Guy Mossman | Optical fiber based sensor system suitable for monitoring remote aqueous infiltration |
-
2019
- 2019-10-07 US US17/765,074 patent/US12117336B2/en active Active
- 2019-10-07 WO PCT/JP2019/039486 patent/WO2021070222A1/ja not_active Ceased
- 2019-10-07 JP JP2021550955A patent/JP7315014B2/ja active Active
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