JP7343037B2 - メンテナンスハッチの除去を特定するための方法、特定システム、特定装置及びプログラム - Google Patents

メンテナンスハッチの除去を特定するための方法、特定システム、特定装置及びプログラム Download PDF

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JP7343037B2
JP7343037B2 JP2022507243A JP2022507243A JP7343037B2 JP 7343037 B2 JP7343037 B2 JP 7343037B2 JP 2022507243 A JP2022507243 A JP 2022507243A JP 2022507243 A JP2022507243 A JP 2022507243A JP 7343037 B2 JP7343037 B2 JP 7343037B2
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Japan
Prior art keywords
optical fiber
maintenance hatch
backscattered light
maintenance
hatch
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JP2022507243A
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Japanese (ja)
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JPWO2021182507A5 (ja
JPWO2021182507A1 (https=
Inventor
直人 小倉
幸英 依田
洸遥 森
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NEC Corp
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NEC Corp
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/268—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light using optical fibres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
    • G01D5/35338—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using other arrangements than interferometer arrangements
    • G01D5/35354—Sensor working in reflection
    • G01D5/35358—Sensor working in reflection using backscattering to detect the measured quantity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/08—Testing mechanical properties
    • G01M11/083—Testing mechanical properties by using an optical fiber in contact with the device under test [DUT]
    • G01M11/086—Details about the embedment of the optical fiber within the DUT
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G08B13/1481—Mechanical actuation by lifting or attempted removal of hand-portable articles with optical detection
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/12—Thermometers specially adapted for specific purposes combined with sampling devices for measuring temperatures of samples of materials

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Optics & Photonics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Burglar Alarm Systems (AREA)
JP2022507243A 2020-03-13 2021-03-10 メンテナンスハッチの除去を特定するための方法、特定システム、特定装置及びプログラム Active JP7343037B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US16/818,184 US11519758B2 (en) 2020-03-13 2020-03-13 System for identifying removal of maintenance hatch and method of using
US16/818,184 2020-03-13
PCT/JP2021/009513 WO2021182507A1 (ja) 2020-03-13 2021-03-10 メンテナンスハッチの除去を特定するためのシステム及び使用方法

Publications (3)

Publication Number Publication Date
JPWO2021182507A1 JPWO2021182507A1 (https=) 2021-09-16
JPWO2021182507A5 JPWO2021182507A5 (ja) 2022-11-22
JP7343037B2 true JP7343037B2 (ja) 2023-09-12

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JP2022507243A Active JP7343037B2 (ja) 2020-03-13 2021-03-10 メンテナンスハッチの除去を特定するための方法、特定システム、特定装置及びプログラム

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US (1) US11519758B2 (https=)
JP (1) JP7343037B2 (https=)
WO (1) WO2021182507A1 (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3991155A1 (en) * 2019-06-27 2022-05-04 Telefonaktiebolaget Lm Ericsson (Publ) A security system
CN113726426B (zh) 2021-10-19 2022-07-01 国网新疆电力有限公司电力科学研究院 一种具有告警功能的光缆监测系统
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
WO2024053069A1 (ja) * 2022-09-08 2024-03-14 日本電信電話株式会社 堆積物推定システム及び堆積物推定方法
WO2025229290A1 (en) * 2024-05-02 2025-11-06 Lwf Uk Limited Techniques for enhancing detection and alerting for events in fluid pipes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006214844A (ja) 2005-02-03 2006-08-17 Fujikura Ltd 光ファイバを用いた可動体変位検知装置
WO2019189192A1 (ja) 2018-03-27 2019-10-03 日本電気株式会社 光ファイバセンサ及び解析方法
WO2020044660A1 (ja) 2018-08-30 2020-03-05 日本電気株式会社 状態特定システム、状態特定装置、状態特定方法、及び非一時的なコンピュータ可読媒体

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
US20080210852A1 (en) 2003-03-21 2008-09-04 Browning Thomas E Fiber optic security system for sensing the intrusion of secured locations
US7402790B2 (en) * 2003-05-03 2008-07-22 Woven Electronics, Llc Fiber optic security system for sensing the intrusion of secured locations
US20060071770A1 (en) 2004-10-04 2006-04-06 Frank Giotto Fiber optic cable sensor for movable objects
US20110186203A1 (en) 2011-04-08 2011-08-04 Richard Lindner Method and apparatus for determining proper curing of pipe liners using distributed temperature sensing
ITGE20120014U1 (it) 2012-02-23 2013-08-24 Def Di R Doni S P A Dispositivo antifurto per cavi, in particolare cavi elettrici e nei cavidotti o simili
CN104236597B (zh) 2013-06-06 2017-03-15 泰科电子(上海)有限公司 光传感器、光传感器组件和监测装置
EP3474462B1 (en) 2017-10-17 2020-01-29 ADVA Optical Networking SE Remote sensing system
CN109243123A (zh) * 2018-08-31 2019-01-18 北京百世通管道科技有限公司 一种井盖状态实时监测预警系统和方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006214844A (ja) 2005-02-03 2006-08-17 Fujikura Ltd 光ファイバを用いた可動体変位検知装置
WO2019189192A1 (ja) 2018-03-27 2019-10-03 日本電気株式会社 光ファイバセンサ及び解析方法
WO2020044660A1 (ja) 2018-08-30 2020-03-05 日本電気株式会社 状態特定システム、状態特定装置、状態特定方法、及び非一時的なコンピュータ可読媒体

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JPWO2021182507A1 (https=) 2021-09-16
US11519758B2 (en) 2022-12-06
WO2021182507A1 (ja) 2021-09-16
US20210285798A1 (en) 2021-09-16

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