CN114127518A - 光纤感测系统、光纤感测设备和异常判断方法 - Google Patents

光纤感测系统、光纤感测设备和异常判断方法 Download PDF

Info

Publication number
CN114127518A
CN114127518A CN202080050971.0A CN202080050971A CN114127518A CN 114127518 A CN114127518 A CN 114127518A CN 202080050971 A CN202080050971 A CN 202080050971A CN 114127518 A CN114127518 A CN 114127518A
Authority
CN
China
Prior art keywords
vibration
vibration mode
optical fiber
abnormality
optical signal
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.)
Pending
Application number
CN202080050971.0A
Other languages
English (en)
Chinese (zh)
Inventor
依田幸英
小仓直人
青野义明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Publication of CN114127518A publication Critical patent/CN114127518A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
    • G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
CN202080050971.0A 2019-07-17 2020-07-08 光纤感测系统、光纤感测设备和异常判断方法 Pending CN114127518A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019132271 2019-07-17
JP2019-132271 2019-07-17
PCT/JP2020/026687 WO2021010251A1 (ja) 2019-07-17 2020-07-08 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

Publications (1)

Publication Number Publication Date
CN114127518A true CN114127518A (zh) 2022-03-01

Family

ID=74210729

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202080050971.0A Pending CN114127518A (zh) 2019-07-17 2020-07-08 光纤感测系统、光纤感测设备和异常判断方法

Country Status (5)

Country Link
US (1) US12104947B2 (https=)
EP (1) EP4001862A4 (https=)
JP (1) JP7235115B2 (https=)
CN (1) CN114127518A (https=)
WO (1) WO2021010251A1 (https=)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7574913B2 (ja) * 2021-03-04 2024-10-29 日本電気株式会社 検出装置、検出システム及び検出方法
CN114268365B (zh) * 2021-12-02 2023-07-11 国网甘肃省电力公司酒泉供电公司 一种基于可视化技术的通信光缆智能预警方法及系统
JP7671317B2 (ja) * 2023-03-27 2025-05-01 株式会社エステック 埋設物予防保全システム及び埋設物予防保全方法
WO2024252476A1 (ja) * 2023-06-05 2024-12-12 日本電気株式会社 振動監視システム、振動監視装置、及び振動監視方法
JP7525082B1 (ja) * 2023-10-31 2024-07-30 中国電力株式会社 設備監視システム、及び設備監視方法
WO2025109652A1 (ja) * 2023-11-20 2025-05-30 中国電力株式会社 設備監視システム、及び設備監視方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1598494A (zh) * 2004-07-20 2005-03-23 重庆大学 用于长途管线安全监测的光纤干涉型自动监测方法及系统
CN103345808A (zh) * 2013-06-26 2013-10-09 武汉理工光科股份有限公司 光纤光栅周界入侵模式识别方法及系统
CN105841793A (zh) * 2016-04-15 2016-08-10 深圳艾瑞斯通技术有限公司 一种光纤振源识别方法、装置及系统
CN106500821A (zh) * 2016-09-30 2017-03-15 上海复旦智能监控成套设备有限公司 一种分布式光纤燃气管道安全监控方法及系统
CN206988826U (zh) * 2017-05-05 2018-02-09 南京朗坤自动化有限公司 地下综合管廊管网振动监测预警系统
CN107862821A (zh) * 2017-12-12 2018-03-30 上海师范大学 一种周界安防系统
WO2019022084A1 (ja) * 2017-07-28 2019-01-31 長野計器株式会社 下水道モニタリングシステム及びその施工方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3127934B2 (ja) * 1991-12-27 2001-01-29 住友電気工業株式会社 電力ケーブルの外傷予知方法
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
JP2001311749A (ja) 2000-04-28 2001-11-09 Toshiba Corp 異常信号監視装置
JP2011203116A (ja) * 2010-03-25 2011-10-13 Toyota Motor Corp 車両用異常予測装置及び方法
GB201502025D0 (en) 2015-02-06 2015-03-25 Optasence Holdings Ltd Optical fibre sensing
GB2539254A (en) 2015-06-12 2016-12-14 Pimon Gmbh Method and apparatus for monitoring pipeline
JP2017142153A (ja) * 2016-02-10 2017-08-17 セイコーエプソン株式会社 寿命予測方法、寿命予測装置、および寿命予測システム
JP6637583B2 (ja) 2018-12-21 2020-01-29 アイリスオーヤマ株式会社 送風機

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1598494A (zh) * 2004-07-20 2005-03-23 重庆大学 用于长途管线安全监测的光纤干涉型自动监测方法及系统
CN103345808A (zh) * 2013-06-26 2013-10-09 武汉理工光科股份有限公司 光纤光栅周界入侵模式识别方法及系统
CN105841793A (zh) * 2016-04-15 2016-08-10 深圳艾瑞斯通技术有限公司 一种光纤振源识别方法、装置及系统
CN106500821A (zh) * 2016-09-30 2017-03-15 上海复旦智能监控成套设备有限公司 一种分布式光纤燃气管道安全监控方法及系统
CN206988826U (zh) * 2017-05-05 2018-02-09 南京朗坤自动化有限公司 地下综合管廊管网振动监测预警系统
WO2019022084A1 (ja) * 2017-07-28 2019-01-31 長野計器株式会社 下水道モニタリングシステム及びその施工方法
CN107862821A (zh) * 2017-12-12 2018-03-30 上海师范大学 一种周界安防系统

Also Published As

Publication number Publication date
WO2021010251A1 (ja) 2021-01-21
US20220276089A1 (en) 2022-09-01
JP7235115B2 (ja) 2023-03-08
EP4001862A1 (en) 2022-05-25
EP4001862A4 (en) 2022-08-17
US12104947B2 (en) 2024-10-01
JPWO2021010251A1 (https=) 2021-01-21

Similar Documents

Publication Publication Date Title
CN114127518A (zh) 光纤感测系统、光纤感测设备和异常判断方法
US12092514B2 (en) Optical fiber sensing system, optical fiber sensing device, and method for detecting pipe deterioration
JP7124875B2 (ja) 電柱位置特定システム、電柱位置特定装置、電柱位置特定方法、及びプログラム
JP7124876B2 (ja) 状態特定システム、状態特定装置、状態特定方法、及びプログラム
JP7616265B2 (ja) 電柱劣化検出システム、電柱劣化検出装置、電柱劣化検出方法、及びプログラム
WO2020116030A1 (ja) 道路監視システム、道路監視装置、道路監視方法、及び非一時的なコンピュータ可読媒体
WO2024004119A1 (ja) 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
JP2023039986A (ja) 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、及び停電検出方法
JP7533566B2 (ja) 監視システム、監視装置、及び監視方法
JPWO2020246131A1 (ja) ワイヤロープ検査システムおよびワイヤロープ検査方法
US20210372828A1 (en) Civil engineering structure monitoring system, civil engineering structure monitoring apparatus, civil engineering structure monitoring method, and non-transitory computer-readable medium
US20230081172A1 (en) Power failure detection system, power failure detection device, and power failure detection method
US20230070029A1 (en) Detection system, detection device, and detection method
US20240361178A1 (en) Monitoring system, monitoring apparatus, and monitoring method
JP7616402B2 (ja) 検出システム、検出装置、及び検出方法
US12146786B2 (en) Optical fiber sensing system and monitoring method including an abnormality detector
US12072232B2 (en) Optical fiber sensing system, optical fiber sensing apparatus, and reservoir monitoring method
CN120636055A (zh) 一种结合声源监测的光缆防外力破坏监测方法和系统

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20220301

WD01 Invention patent application deemed withdrawn after publication