SG11201901980QA - Method and system for distributed acoustic sensing - Google Patents

Method and system for distributed acoustic sensing

Info

Publication number
SG11201901980QA
SG11201901980QA SG11201901980QA SG11201901980QA SG11201901980QA SG 11201901980Q A SG11201901980Q A SG 11201901980QA SG 11201901980Q A SG11201901980Q A SG 11201901980QA SG 11201901980Q A SG11201901980Q A SG 11201901980QA SG 11201901980Q A SG11201901980Q A SG 11201901980QA
Authority
SG
Singapore
Prior art keywords
international
optical fibre
fibre
acoustic
acoustic sensing
Prior art date
Application number
SG11201901980QA
Inventor
Mark Andrew Englund
Original Assignee
Mark Andrew Englund
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
Priority claimed from AU2016903617A external-priority patent/AU2016903617A0/en
Application filed by Mark Andrew Englund filed Critical Mark Andrew Englund
Publication of SG11201901980QA publication Critical patent/SG11201901980QA/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
    • G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
    • G08B13/186—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier using light guides, e.g. optical fibres
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/008—Transducers other than those covered by groups H04R9/00 - H04R21/00 using optical signals for detecting or generating sound
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/20—Calibration, including self-calibrating arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Alarm Systems (AREA)
  • Optical Transform (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Optical Communication System (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property :::` , 11111111111 0 1110101011111 011101 0 01111111E11111 01H01111111011110111111 Organization International Bureau (10) International Publication Number 03 (43) International Publication Date .....•\"\" WO 2018/045433 Al 15 March 2018 (15.03.2018) WI P0 I P C T (51) International Patent Classification: (72) Inventor; and GO1D 5/353 (2006.01) GO8B 13/186 (2006.01) (71) Applicant: ENGLUND, Mark Andrew [AU/AU]; G01N 21/47 (2006.01) G01H 9/00 (2006.01) la/1110 Middle Head Road, Mosmon, New South Wales (21) International Application Number: 2088 (AU). PCT/AU2017/050985 (74) Agent: FPA PATENT ATTORNEYS PTY LTD; ANZ (22) International Filing Date: Tower, 161 Castlereagh Street, Sydney, New South Wales 08 September 2017 (08.09.2017) 2000 (AU). (25) Filing Language: English (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, (26) Publication Language: English AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (30) Priority Data: CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, 2016903617 08 September 2016 (08.09.2016) AU DZ, EC, EE, EG, ES, FL GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, (54) Title: METHOD AND SYSTEM = = =I FOR DISTRIBUTED ACOUSTIC SENSING ..„4 -102 OTDR ,100 I = I = LIGHT SOURCE 104 I 106 I—> 110 — I I , y10 = PHOTODETECTOR 108 105 j110 1110 = ' I ( 410 _ — = PROCESSING UNIT r114 _ = = = = Intensity t = t i - ---......... 112 Intensity t = t 2 116 112 — = 1-1 (57) : Described herein is M involving a dedicated and established fibre optic communications en and system includes the steps of (a) selecting an optical fibre cable installation having a path extending across a selected geographical 71' in area, the optical fibre cable installation including a bundle of optical fibres and forming part of a fibre -optic communications network, > distance FIG. a method and system of distributed distance .. la acoustic sensing, such network including a data centre. In general, the disclosed method as in an urban or metropolitan area 7r (b) determining characteristics associated with the optical fibre and/or the selected optical fibre installation, (c) transmitting outgoing 5 : -. : , :: light in the optical fibre, (d) receiving reflected light back scattered along the optical fibre, and (e) based on the reflected light and GC the determined characteristics, generating an alert signal representative of an acoustic event. The disclosed method and system may be Il © useful in the detection of acoustic events near or within the selected geographical area. N C [Continued on next page] WO 2018/045433 Al MIDEDIMOMOIDEIREEMOOVIMEHINDOMEHOIS SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))
SG11201901980QA 2016-09-08 2017-09-08 Method and system for distributed acoustic sensing SG11201901980QA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2016903617A AU2016903617A0 (en) 2016-09-08 Method and system for distributed acoustic sensing
PCT/AU2017/050985 WO2018045433A1 (en) 2016-09-08 2017-09-08 Method and system for distributed acoustic sensing

Publications (1)

Publication Number Publication Date
SG11201901980QA true SG11201901980QA (en) 2019-04-29

Family

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Family Applications (2)

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SG10202007724SA SG10202007724SA (en) 2016-09-08 2017-09-08 Method and system for distributed acoustic sensing
SG11201901980QA SG11201901980QA (en) 2016-09-08 2017-09-08 Method and system for distributed acoustic sensing

Family Applications Before (1)

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SG10202007724SA SG10202007724SA (en) 2016-09-08 2017-09-08 Method and system for distributed acoustic sensing

Country Status (8)

Country Link
US (4) US10650648B2 (en)
EP (1) EP3510363B1 (en)
JP (2) JP7267918B2 (en)
AU (4) AU2017325116B2 (en)
CA (2) CA3036133C (en)
ES (1) ES2970377T3 (en)
SG (2) SG10202007724SA (en)
WO (1) WO2018045433A1 (en)

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Also Published As

Publication number Publication date
US20220246004A1 (en) 2022-08-04
WO2018045433A1 (en) 2018-03-15
ES2970377T3 (en) 2024-05-28
US20210209908A1 (en) 2021-07-08
US20200202687A1 (en) 2020-06-25
AU2022221467A1 (en) 2022-09-22
US20190197846A1 (en) 2019-06-27
EP3510363C0 (en) 2023-11-01
JP2019529952A (en) 2019-10-17
AU2022221467B2 (en) 2024-02-29
CA3036133A1 (en) 2018-03-15
EP3510363A4 (en) 2020-04-01
AU2017325116A1 (en) 2019-05-02
AU2020204562A1 (en) 2020-07-30
AU2022100039B4 (en) 2022-09-15
AU2017325116B2 (en) 2020-04-09
EP3510363A1 (en) 2019-07-17
US10650648B2 (en) 2020-05-12
US11308774B2 (en) 2022-04-19
US11721184B2 (en) 2023-08-08
CA3116374A1 (en) 2018-03-15
SG10202007724SA (en) 2020-09-29
EP3510363B1 (en) 2023-11-01
JP2023015211A (en) 2023-01-31
JP7267918B2 (en) 2023-05-02
CA3036133C (en) 2021-05-18
US10950102B2 (en) 2021-03-16
AU2022100039A4 (en) 2022-03-31

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