JP7491458B2 - 電柱位置特定方法及び架空光ファイバケーブルの状態推定方法 - Google Patents

電柱位置特定方法及び架空光ファイバケーブルの状態推定方法 Download PDF

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Publication number
JP7491458B2
JP7491458B2 JP2023500173A JP2023500173A JP7491458B2 JP 7491458 B2 JP7491458 B2 JP 7491458B2 JP 2023500173 A JP2023500173 A JP 2023500173A JP 2023500173 A JP2023500173 A JP 2023500173A JP 7491458 B2 JP7491458 B2 JP 7491458B2
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Japan
Prior art keywords
optical fiber
vibration
fiber cable
utility pole
condition
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JP2023500173A
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Japanese (ja)
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JPWO2022176047A1 (https=
Inventor
達也 岡本
大輔 飯田
優介 古敷谷
奈月 本田
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NTT Inc
NTT Inc USA
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Nippon Telegraph and Telephone Corp
NTT Inc USA
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    • 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
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/48—Overhead installation
    • G02B6/483—Installation of aerial type
    • 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Locating Faults (AREA)
JP2023500173A 2021-02-17 2021-02-17 電柱位置特定方法及び架空光ファイバケーブルの状態推定方法 Active JP7491458B2 (ja)

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PCT/JP2021/005852 WO2022176047A1 (ja) 2021-02-17 2021-02-17 電柱位置特定方法及び架空光ファイバケーブルの状態推定方法

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JPWO2022176047A1 JPWO2022176047A1 (https=) 2022-08-25
JP7491458B2 true JP7491458B2 (ja) 2024-05-28

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US (1) US12553769B2 (https=)
EP (1) EP4296633A4 (https=)
JP (1) JP7491458B2 (https=)
CN (1) CN116917703A (https=)
WO (1) WO2022176047A1 (https=)

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US11881688B2 (en) * 2021-04-12 2024-01-23 Nec Corporation Dynamic anomaly localization of utility pole wires
WO2024057492A1 (ja) * 2022-09-15 2024-03-21 日本電信電話株式会社 振動分布波形から電柱位置を特定する方法
WO2024166295A1 (ja) * 2023-02-09 2024-08-15 日本電信電話株式会社 設備位置解析装置及び設備位置解析方法
WO2025238718A1 (ja) * 2024-05-14 2025-11-20 Ｎｔｔ株式会社 信号処理装置

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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
WO2020044648A1 (ja) 2018-08-30 2020-03-05 日本電気株式会社 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、及び非一時的なコンピュータ可読媒体
CN111442788A (zh) 2020-04-03 2020-07-24 南京晓庄学院 一种架空输电线路健康监测方法及系统
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CN109297662B (zh) * 2018-10-11 2024-04-12 三峡大学 一种架空电缆振动试验装置及试验方法
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US20190284931A1 (en) 2018-03-13 2019-09-19 Helmholtz-Zentrum Potsdam - Deutsches GeoForschungsZentrum GFZ Method and system for monitoring a material and/or a device in a bore hole using a fiber optic measuring cable
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
WO2020044648A1 (ja) 2018-08-30 2020-03-05 日本電気株式会社 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、及び非一時的なコンピュータ可読媒体
JP2020134142A (ja) 2019-02-12 2020-08-31 日本電信電話株式会社 架空光ファイバケーブル検査方法、架空光ファイバケーブル検査装置及びプログラム
US20200370950A1 (en) 2019-05-22 2020-11-26 Nec Laboratories America, Inc Rayleigh fading mitigation via short pulse coherent distributed acoustic sensing with multi-location beating-term combination
CN111442788A (zh) 2020-04-03 2020-07-24 南京晓庄学院 一种架空输电线路健康监测方法及系统

Also Published As

Publication number Publication date
US20240118126A1 (en) 2024-04-11
US12553769B2 (en) 2026-02-17
EP4296633A1 (en) 2023-12-27
CN116917703A (zh) 2023-10-20
WO2022176047A1 (ja) 2022-08-25
EP4296633A4 (en) 2025-01-01
JPWO2022176047A1 (https=) 2022-08-25

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