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FR2418506B1 - - Google Patents

Info

Publication number
FR2418506B1
FR2418506B1 FR7805663A FR7805663A FR2418506B1 FR 2418506 B1 FR2418506 B1 FR 2418506B1 FR 7805663 A FR7805663 A FR 7805663A FR 7805663 A FR7805663 A FR 7805663A FR 2418506 B1 FR2418506 B1 FR 2418506B1
Authority
FR
France
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.)
Expired
Application number
FR7805663A
Other languages
French (fr)
Other versions
FR2418506A1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite SA
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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Priority to FR7805663A priority Critical patent/FR2418506A1/en
Priority to GB7903921A priority patent/GB2015844B/en
Priority to CH119479A priority patent/CH627573A5/en
Priority to BE1/9267A priority patent/BE873985A/en
Priority to IT67319/79A priority patent/IT1118351B/en
Priority to DE19792906841 priority patent/DE2906841A1/en
Priority to NL7901615A priority patent/NL7901615A/en
Publication of FR2418506A1 publication Critical patent/FR2418506A1/en
Application granted granted Critical
Publication of FR2418506B1 publication Critical patent/FR2418506B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/02—Electric devices associated with track, e.g. rail contacts
    • 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
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
FR7805663A 1978-02-28 1978-02-28 DEVICE FOR DETECTING THE PRESENCE OF AN OBJECT ALONG A LINE Granted FR2418506A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7805663A FR2418506A1 (en) 1978-02-28 1978-02-28 DEVICE FOR DETECTING THE PRESENCE OF AN OBJECT ALONG A LINE
GB7903921A GB2015844B (en) 1978-02-28 1979-02-05 Device for detecting the presence of an object
CH119479A CH627573A5 (en) 1978-02-28 1979-02-07 DEVICE FOR DETECTING THE PRESENCE OF AN OBJECT ALONG A LINE.
BE1/9267A BE873985A (en) 1978-02-28 1979-02-07 DEVICE FOR DETECTING THE PRESENCE OF AN OBJECT ALONG A LINE
IT67319/79A IT1118351B (en) 1978-02-28 1979-02-14 DEVICE TO DETECT THE PRESENCE OF AN OBJECT ALONG A LINE, PARTICULARLY ALONG A PROTECTION FENCE
DE19792906841 DE2906841A1 (en) 1978-02-28 1979-02-22 MONITORING DEVICE WITH A FIBER OPTIC
NL7901615A NL7901615A (en) 1978-02-28 1979-02-28 DEVICE FOR DETECTING THE PRESENCE OF AN OBJECT ALONG A LINE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7805663A FR2418506A1 (en) 1978-02-28 1978-02-28 DEVICE FOR DETECTING THE PRESENCE OF AN OBJECT ALONG A LINE

Publications (2)

Publication Number Publication Date
FR2418506A1 FR2418506A1 (en) 1979-09-21
FR2418506B1 true FR2418506B1 (en) 1982-10-29

Family

ID=9205152

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7805663A Granted FR2418506A1 (en) 1978-02-28 1978-02-28 DEVICE FOR DETECTING THE PRESENCE OF AN OBJECT ALONG A LINE

Country Status (7)

Country Link
BE (1) BE873985A (en)
CH (1) CH627573A5 (en)
DE (1) DE2906841A1 (en)
FR (1) FR2418506A1 (en)
GB (1) GB2015844B (en)
IT (1) IT1118351B (en)
NL (1) NL7901615A (en)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297684A (en) * 1979-03-26 1981-10-27 Honeywell Inc. Fiber optic intruder alarm system
US4482890A (en) * 1981-01-22 1984-11-13 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Weight responsive intrusion detector using dual optical fibers
ATE34055T1 (en) * 1981-09-11 1988-05-15 Feller Ag ONE OPTICAL FIBER SWITCHING DEVICE.
DE3322046C2 (en) * 1983-06-18 1986-01-23 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Fiber optic pressure and penetration sensor
DE3443949A1 (en) * 1984-12-01 1986-06-05 AEG KABEL AG, 4050 Mönchengladbach Light guide as force sensor
IL78728A (en) * 1986-05-08 1990-07-12 Magal Security Systems Ltd Security fence
DE3628083A1 (en) * 1986-08-19 1988-03-03 Felten & Guilleaume Energie Floor monitoring plate for antitheft protection - has optical conductors in bars linked together and coupled to central station
DE3731428A1 (en) * 1987-09-18 1989-04-06 Bayerische Motoren Werke Ag Device for avoiding parts of the body being pinched when electrically activated windows or sliding roofs close
DE3815152A1 (en) * 1988-05-04 1989-11-23 Strabag Bau Ag Device for monitoring and/or controlling rail-bound traffic
JPH0676172A (en) * 1991-04-16 1994-03-18 Sumitomo Electric Ind Ltd Detector for burglary
IL99773A (en) * 1991-10-17 1995-11-27 Israel State Pressure sensor
NL9201667A (en) * 1992-09-25 1994-04-18 Nl Spoorwegen Nv System for detecting trains.
WO1994018649A1 (en) * 1993-02-13 1994-08-18 Socoa International Holding S.A. Optic fiber security system
JP3528435B2 (en) * 1996-06-27 2004-05-17 トヨタ自動車株式会社 Road object detection device
DE19940549C1 (en) * 1999-08-26 2001-01-18 Siemens Ag Method of monitoring a route for a vehicle on a track, esp. a railway or magnetic levitation vehicle, enables simple, high sensitivity monitoring
DE10003333A1 (en) * 2000-01-27 2001-08-09 Jakob Reuter Monitoring device for determining and reporting the contact point of an object with a glass fiber light transmitter type sensor, due to the momentary loss of light at a sensor, especially intended for use with tennis games
WO2003025524A1 (en) * 2001-09-19 2003-03-27 Gebert Ruediger Heinz Weight sensor
NL1020997C2 (en) * 2002-07-04 2004-01-13 Lightspeed Inv S B V Engaging means for a signal line, signal line and construction element.
GB0322859D0 (en) 2003-09-30 2003-10-29 British Telecomm Communication
US7667849B2 (en) 2003-09-30 2010-02-23 British Telecommunications Public Limited Company Optical sensor with interferometer for sensing external physical disturbance of optical communications link
NL1024456C2 (en) * 2003-10-06 2005-04-07 Lightspeed Inv S B V Signal line, fence and method for manufacturing a fence.
GB0407386D0 (en) 2004-03-31 2004-05-05 British Telecomm Monitoring a communications link
US7848645B2 (en) 2004-09-30 2010-12-07 British Telecommunications Public Limited Company Identifying or locating waveguides
GB0421747D0 (en) 2004-09-30 2004-11-03 British Telecomm Distributed backscattering
GB0427733D0 (en) 2004-12-17 2005-01-19 British Telecomm Optical system
EP1825613B1 (en) 2004-12-17 2011-02-16 BRITISH TELECOMMUNICATIONS public limited company Assessing a network
GB0504579D0 (en) 2005-03-04 2005-04-13 British Telecomm Communications system
ATE434774T1 (en) 2005-03-04 2009-07-15 British Telecomm ACOUSTOPTICAL MODULATOR ARRANGEMENT
EP1708388A1 (en) 2005-03-31 2006-10-04 British Telecommunications Public Limited Company Communicating information
EP1713301A1 (en) 2005-04-14 2006-10-18 BRITISH TELECOMMUNICATIONS public limited company Method and apparatus for communicating sound over an optical link
EP1729096A1 (en) 2005-06-02 2006-12-06 BRITISH TELECOMMUNICATIONS public limited company Method and apparatus for determining the position of a disturbance in an optical fibre
WO2007096579A1 (en) 2006-02-24 2007-08-30 British Telecommunications Public Limited Company Sensing a disturbance
EP1989797B1 (en) 2006-02-24 2011-04-13 BRITISH TELECOMMUNICATIONS public limited company Sensing a disturbance
EP1826924A1 (en) 2006-02-24 2007-08-29 BRITISH TELECOMMUNICATIONS public limited company Sensing a disturbance
WO2007113527A1 (en) 2006-04-03 2007-10-11 British Telecommunications Public Limited Company Evaluating the position of a disturbance
EP2804166A1 (en) 2013-05-13 2014-11-19 PSS Consultancy & Equipment B.V. Sensor cable and system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1497995A (en) * 1976-04-13 1978-01-12 Standard Telephones Cables Ltd Fibre optic acoustic monitoring arrangement
DE2810971C1 (en) * 1978-03-14 1985-12-05 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Light guide for monitoring a room or area

Also Published As

Publication number Publication date
CH627573A5 (en) 1982-01-15
GB2015844B (en) 1982-06-03
NL7901615A (en) 1979-08-30
BE873985A (en) 1979-08-07
DE2906841A1 (en) 1979-09-20
IT1118351B (en) 1986-02-24
GB2015844A (en) 1979-09-12
IT7967319A0 (en) 1979-02-14
DE2906841C2 (en) 1989-08-24
FR2418506A1 (en) 1979-09-21

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Legal Events

Date Code Title Description
ST Notification of lapse