JPWO2022185469A5 - - Google Patents
Download PDFInfo
- Publication number
- JPWO2022185469A5 JPWO2022185469A5 JP2023503276A JP2023503276A JPWO2022185469A5 JP WO2022185469 A5 JPWO2022185469 A5 JP WO2022185469A5 JP 2023503276 A JP2023503276 A JP 2023503276A JP 2023503276 A JP2023503276 A JP 2023503276A JP WO2022185469 A5 JPWO2022185469 A5 JP WO2022185469A5
- Authority
- JP
- Japan
- Prior art keywords
- construction
- construction detection
- deterioration
- optical signal
- detection device
- 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
- 238000001514 detection method Methods 0.000 claims description 21
- 230000006866 deterioration Effects 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims 19
- 229910000831 Steel Inorganic materials 0.000 claims 6
- 239000013307 optical fiber Substances 0.000 claims 6
- 239000010959 steel Substances 0.000 claims 6
- 238000000034 method Methods 0.000 claims 2
- 238000001228 spectrum Methods 0.000 description 1
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2021/008374 WO2022185469A1 (ja) | 2021-03-04 | 2021-03-04 | 工事検出装置、工事検出システム及び工事検出方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPWO2022185469A1 JPWO2022185469A1 (https=) | 2022-09-09 |
| JPWO2022185469A5 true JPWO2022185469A5 (https=) | 2023-11-02 |
| JP7574913B2 JP7574913B2 (ja) | 2024-10-29 |
Family
ID=83155229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023503276A Active JP7574913B2 (ja) | 2021-03-04 | 2021-03-04 | 検出装置、検出システム及び検出方法 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7574913B2 (https=) |
| WO (1) | WO2022185469A1 (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7799226B2 (ja) * | 2022-09-27 | 2026-01-15 | Ｎｔｔ株式会社 | 推定装置、推定方法及びプログラム |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001059719A (ja) * | 1999-08-24 | 2001-03-06 | Tokyo Gas Co Ltd | 地中構造物損傷予防のための検知装置 |
| JP2002152937A (ja) * | 2000-11-13 | 2002-05-24 | Toshiba Corp | 異常信号監視装置 |
| JP2005241431A (ja) * | 2004-02-26 | 2005-09-08 | Tokyo Gas Co Ltd | 光ファイバ干渉型センサ |
| JP2013072800A (ja) * | 2011-09-28 | 2013-04-22 | Chugoku Electric Power Co Inc:The | 振動検出システム |
| US20220357421A1 (en) * | 2019-06-20 | 2022-11-10 | Nec Corporation | Optical fiber sensing system and sound source position identification method |
| JP7235115B2 (ja) * | 2019-07-17 | 2023-03-08 | 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、及び異常判断方法 |
-
2021
- 2021-03-04 JP JP2023503276A patent/JP7574913B2/ja active Active
- 2021-03-04 WO PCT/JP2021/008374 patent/WO2022185469A1/ja not_active Ceased
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2567551A1 (en) | Fibre optic sensor method and apparatus | |
| CN205746047U (zh) | 一种长输油气管道安全监测系统 | |
| US8923663B2 (en) | Distributed fibre optic sensing | |
| CN103337120B (zh) | 准分布式光纤光栅周界入侵报警系统的定址方法及系统 | |
| CN105261136B (zh) | 一种光纤监测报警系统中屏蔽天气干扰的方法及装置 | |
| CN109374116B (zh) | 地埋式光纤传感振动探测系统的挖掘行为识别方法 | |
| CN109326070B (zh) | 一种周界安防系统及周界安防监测方法 | |
| JP2020186911A (ja) | 下水道モニタリングシステム及びその施工方法 | |
| WO2011103271A4 (en) | Fiber optic personnel safety systems and methods of using the same | |
| WO2008051388A3 (en) | Method and apparatus for fiber optic signature recognition | |
| CN112781711B (zh) | 基于光纤振动传感的地铁上方钻孔设备入侵定位报警方法 | |
| US20190368472A1 (en) | Device and method for recognizing the attachment of ice to a structure of an edifice | |
| US12553769B2 (en) | Positioning method of electric pole and estimating method of the state of overhead optical fiber cable | |
| CN104627205A (zh) | 基于光纤光栅传感器闭环回路的铁路异物侵限监测系统 | |
| WO2014048714A3 (de) | Verfahren zum betreiben eines mobilen gerätes in einem eisenbahnsystem, eisenbahnsystem und mobiles gerät | |
| JPWO2022185469A5 (https=) | ||
| Mahmoud et al. | Elimination of rain-induced nuisance alarms in distributed fiber optic perimeter intrusion detection systems | |
| CN205966442U (zh) | 一种用于标定光纤振动入侵探测系统的振动源 | |
| CN114172567A (zh) | 光纤中故障点的定位方法及装置 | |
| JP2002152937A (ja) | 異常信号監視装置 | |
| CN104833378B (zh) | 光纤周界系统干扰信号识别方法 | |
| JP4665779B2 (ja) | フェンス振動センサ装置 | |
| CN101860866B (zh) | 防入侵系统传感网络的入侵检测与定位方法 | |
| CN114677818A (zh) | 一种隧道外部入侵监测系统及方法 | |
| DE50114445D1 (de) | Verfahren und Vorrichtung zur Früherkennung einer möglichen Überhitzung eines Gegenstandes |