JPWO2021176581A5 - - Google Patents
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- JPWO2021176581A5 JPWO2021176581A5 JP2022504830A JP2022504830A JPWO2021176581A5 JP WO2021176581 A5 JPWO2021176581 A5 JP WO2021176581A5 JP 2022504830 A JP2022504830 A JP 2022504830A JP 2022504830 A JP2022504830 A JP 2022504830A JP WO2021176581 A5 JPWO2021176581 A5 JP WO2021176581A5
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- accident
- incident
- occurred
- detection unit
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- 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.)
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- 238000001514 detection method Methods 0.000 claims 21
- 230000007613 environmental effect Effects 0.000 claims 12
- 230000003287 optical effect Effects 0.000 claims 8
- 238000012806 monitoring device Methods 0.000 claims 6
- 239000013307 optical fiber Substances 0.000 claims 4
- 238000012544 monitoring process Methods 0.000 claims 3
- 238000000034 method Methods 0.000 claims 2
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2020/009053 WO2021176581A1 (ja) | 2020-03-04 | 2020-03-04 | 監視システム、監視装置、及び監視方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPWO2021176581A1 JPWO2021176581A1 (https=) | 2021-09-10 |
| JPWO2021176581A5 true JPWO2021176581A5 (https=) | 2022-10-19 |
| JP7533566B2 JP7533566B2 (ja) | 2024-08-14 |
Family
ID=77613229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022504830A Active JP7533566B2 (ja) | 2020-03-04 | 2020-03-04 | 監視システム、監視装置、及び監視方法 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US12009855B2 (https=) |
| JP (1) | JP7533566B2 (https=) |
| WO (1) | WO2021176581A1 (https=) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11777598B2 (en) * | 2021-06-21 | 2023-10-03 | Ciena Corporation | Utilizing polarization characteristics to detect vibrations in optical fibers |
| WO2023157312A1 (ja) * | 2022-02-21 | 2023-08-24 | 日本電気株式会社 | 信号処理装置、システム、方法、及び非一時的なコンピュータ可読媒体 |
| CN118172914B (zh) * | 2024-05-16 | 2024-07-30 | 三峡金沙江川云水电开发有限公司 | 一种排水洞入侵事件监测预警方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002152937A (ja) | 2000-11-13 | 2002-05-24 | Toshiba Corp | 異常信号監視装置 |
| JP5009712B2 (ja) | 2007-08-02 | 2012-08-22 | ホーチキ株式会社 | 防災表示盤及び制御方法 |
| JP2013185922A (ja) | 2012-03-07 | 2013-09-19 | Hitachi Cable Ltd | 光ファイバ振動センサ |
| JP6415895B2 (ja) | 2014-08-12 | 2018-10-31 | ホーチキ株式会社 | 防災受信機 |
| GB201601060D0 (en) * | 2016-01-20 | 2016-03-02 | Fotech Solutions Ltd | Distributed optical fibre sensors |
| JP6630170B2 (ja) | 2016-01-28 | 2020-01-15 | 日本ドライケミカル株式会社 | 火災、侵入、漏水等の検知及び照明手段を備えた検知および報知システム |
| CA3043239A1 (en) | 2016-11-10 | 2018-05-17 | Mark Andrew Englund | Acoustic method and system for providing digital data |
| CN112601937A (zh) * | 2018-08-30 | 2021-04-02 | 日本电气株式会社 | 状态指定系统、状态指定装置、状态指定方法以及非暂时性计算机可读介质 |
| CN114207389A (zh) | 2019-08-13 | 2022-03-18 | 日本电气株式会社 | 光纤传感系统、光纤传感设备和救援请求检测方法 |
-
2020
- 2020-03-04 WO PCT/JP2020/009053 patent/WO2021176581A1/ja not_active Ceased
- 2020-03-04 JP JP2022504830A patent/JP7533566B2/ja active Active
- 2020-03-04 US US17/799,378 patent/US12009855B2/en active Active
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