ATE554372T1 - Fehlertolerante verteilte faseroptische eindringungserkennung - Google Patents

Fehlertolerante verteilte faseroptische eindringungserkennung

Info

Publication number
ATE554372T1
ATE554372T1 AT07858777T AT07858777T ATE554372T1 AT E554372 T1 ATE554372 T1 AT E554372T1 AT 07858777 T AT07858777 T AT 07858777T AT 07858777 T AT07858777 T AT 07858777T AT E554372 T1 ATE554372 T1 AT E554372T1
Authority
AT
Austria
Prior art keywords
break
premises
optical fiber
processing circuitry
signal processing
Prior art date
Application number
AT07858777T
Other languages
English (en)
Inventor
Andrew Strong
Arthur H Hartog
Original Assignee
Prad Res & Dev Ltd
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 Prad Res & Dev Ltd filed Critical Prad Res & Dev Ltd
Application granted granted Critical
Publication of ATE554372T1 publication Critical patent/ATE554372T1/de

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
    • 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 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Materials For Medical Uses (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Geophysics And Detection Of Objects (AREA)
AT07858777T 2006-12-29 2007-12-06 Fehlertolerante verteilte faseroptische eindringungserkennung ATE554372T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0625850A GB2445364B (en) 2006-12-29 2006-12-29 Fault-tolerant distributed fiber optic intrusion detection
PCT/GB2007/004673 WO2008081157A1 (en) 2006-12-29 2007-12-06 Fault-tolerant distributed fiber optic intrusion detection

Publications (1)

Publication Number Publication Date
ATE554372T1 true ATE554372T1 (de) 2012-05-15

Family

ID=37759004

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07858777T ATE554372T1 (de) 2006-12-29 2007-12-06 Fehlertolerante verteilte faseroptische eindringungserkennung

Country Status (9)

Country Link
US (1) US8947232B2 (de)
EP (1) EP2097880B1 (de)
JP (1) JP5226006B2 (de)
CN (1) CN101573738A (de)
AT (1) ATE554372T1 (de)
BR (1) BRPI0720881A2 (de)
GB (1) GB2445364B (de)
RU (1) RU2446476C2 (de)
WO (1) WO2008081157A1 (de)

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Also Published As

Publication number Publication date
CN101573738A (zh) 2009-11-04
EP2097880B1 (de) 2012-04-18
RU2009129150A (ru) 2011-02-10
US20100117830A1 (en) 2010-05-13
US8947232B2 (en) 2015-02-03
GB2445364A (en) 2008-07-09
JP5226006B2 (ja) 2013-07-03
BRPI0720881A2 (pt) 2014-03-18
EP2097880A1 (de) 2009-09-09
GB0625850D0 (en) 2007-02-07
WO2008081157A1 (en) 2008-07-10
GB2445364B (en) 2010-02-17
RU2446476C2 (ru) 2012-03-27
JP2010515094A (ja) 2010-05-06

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