JPWO2020255358A1 - - Google Patents
Info
- Publication number
- JPWO2020255358A1 JPWO2020255358A1 JP2021528583A JP2021528583A JPWO2020255358A1 JP WO2020255358 A1 JPWO2020255358 A1 JP WO2020255358A1 JP 2021528583 A JP2021528583 A JP 2021528583A JP 2021528583 A JP2021528583 A JP 2021528583A JP WO2020255358 A1 JPWO2020255358 A1 JP WO2020255358A1
- Authority
- JP
- Japan
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/18—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic or infrasonic waves
- G01S5/20—Position of source determined by a plurality of spaced direction-finders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/18—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic or infrasonic waves
- G01S5/22—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Alarm Systems (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2019/024599 WO2020255358A1 (ja) | 2019-06-20 | 2019-06-20 | 光ファイバセンシングシステム及び音源位置特定方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPWO2020255358A1 true JPWO2020255358A1 (https=) | 2020-12-24 |
| JPWO2020255358A5 JPWO2020255358A5 (https=) | 2022-03-08 |
| JP7318706B2 JP7318706B2 (ja) | 2023-08-01 |
Family
ID=74040290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021528583A Active JP7318706B2 (ja) | 2019-06-20 | 2019-06-20 | 光ファイバセンシングシステム及び音源位置特定方法 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20220357421A1 (https=) |
| JP (1) | JP7318706B2 (https=) |
| WO (1) | WO2020255358A1 (https=) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| JP7491464B2 (ja) * | 2021-03-29 | 2024-05-28 | 日本電気株式会社 | 空間センシング装置、空間センシングシステム及び空間センシング方法 |
| CN113702908B (zh) * | 2021-09-01 | 2023-06-09 | 哈尔滨工程大学 | 一种基于pdh解调技术的高精度三维声源定位系统 |
| JP7662045B2 (ja) * | 2021-10-25 | 2025-04-15 | 日本電気株式会社 | 監視システム、監視方法 |
| WO2023089692A1 (ja) * | 2021-11-17 | 2023-05-25 | 日本電気株式会社 | 異常判定方法、異常判定装置、異常判定システム及び非一時的なコンピュータ可読媒体 |
| US20250130075A1 (en) * | 2022-02-16 | 2025-04-24 | Nec Corporation | Processing apparatus, distributed acoustic sensing system, distributed acoustic sensing method, and non-transitory computer readable medium storing program |
| WO2025062510A1 (ja) * | 2023-09-20 | 2025-03-27 | 日本電信電話株式会社 | 漏水検知システム |
| WO2025062509A1 (ja) * | 2023-09-20 | 2025-03-27 | 日本電信電話株式会社 | 漏水検知システム |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3903221B2 (ja) * | 2005-06-24 | 2007-04-11 | オプテックス株式会社 | 防犯センサ |
| JP3920742B2 (ja) * | 2002-08-28 | 2007-05-30 | トヨタ自動車株式会社 | 異常音の音源探査方法及び音源探査装置 |
| US20120226452A1 (en) * | 2009-11-13 | 2012-09-06 | Optasense Holdings Limited | Improvements in Distributed Fibre Optic Sensing |
| WO2013051196A1 (ja) * | 2011-10-05 | 2013-04-11 | ニューブレクス株式会社 | 分布型光ファイバ音波検出装置 |
| JP5294925B2 (ja) * | 2009-03-02 | 2013-09-18 | 株式会社熊谷組 | 音源の推定方法とその装置 |
| JP5473888B2 (ja) * | 2010-12-22 | 2014-04-16 | 三菱重工業株式会社 | 漏洩検出システム |
| US20180332389A1 (en) * | 2016-06-03 | 2018-11-15 | Faraday&Future Inc. | Method and apparatus to detect and isolate audio in a vehicle using multiple microphones |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8121442B2 (en) * | 2008-12-24 | 2012-02-21 | At&T Intellectual Property I, L.P. | Optical fiber surveillance topology |
| GB201109372D0 (en) * | 2011-06-06 | 2011-07-20 | Silixa Ltd | Method for locating an acoustic source |
| GB201201727D0 (en) * | 2012-02-01 | 2012-03-14 | Qinetiq Ltd | Indicating locations |
-
2019
- 2019-06-20 US US17/619,885 patent/US20220357421A1/en not_active Abandoned
- 2019-06-20 JP JP2021528583A patent/JP7318706B2/ja active Active
- 2019-06-20 WO PCT/JP2019/024599 patent/WO2020255358A1/ja not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3920742B2 (ja) * | 2002-08-28 | 2007-05-30 | トヨタ自動車株式会社 | 異常音の音源探査方法及び音源探査装置 |
| JP3903221B2 (ja) * | 2005-06-24 | 2007-04-11 | オプテックス株式会社 | 防犯センサ |
| JP5294925B2 (ja) * | 2009-03-02 | 2013-09-18 | 株式会社熊谷組 | 音源の推定方法とその装置 |
| US20120226452A1 (en) * | 2009-11-13 | 2012-09-06 | Optasense Holdings Limited | Improvements in Distributed Fibre Optic Sensing |
| JP5473888B2 (ja) * | 2010-12-22 | 2014-04-16 | 三菱重工業株式会社 | 漏洩検出システム |
| WO2013051196A1 (ja) * | 2011-10-05 | 2013-04-11 | ニューブレクス株式会社 | 分布型光ファイバ音波検出装置 |
| US20180332389A1 (en) * | 2016-06-03 | 2018-11-15 | Faraday&Future Inc. | Method and apparatus to detect and isolate audio in a vehicle using multiple microphones |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7318706B2 (ja) | 2023-08-01 |
| WO2020255358A1 (ja) | 2020-12-24 |
| US20220357421A1 (en) | 2022-11-10 |
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