NO982640L - Method and system for monitoring an area - Google Patents

Method and system for monitoring an area

Info

Publication number
NO982640L
NO982640L NO982640A NO982640A NO982640L NO 982640 L NO982640 L NO 982640L NO 982640 A NO982640 A NO 982640A NO 982640 A NO982640 A NO 982640A NO 982640 L NO982640 L NO 982640L
Authority
NO
Norway
Prior art keywords
area
image
monitoring
reference image
forming
Prior art date
Application number
NO982640A
Other languages
Norwegian (no)
Other versions
NO982640D0 (en
Inventor
Hans Olav Nyboe
Tor Onshus
Original Assignee
Nyfotek As
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 Nyfotek As filed Critical Nyfotek As
Priority to NO982640A priority Critical patent/NO982640L/en
Publication of NO982640D0 publication Critical patent/NO982640D0/en
Priority to PCT/NO1999/000175 priority patent/WO1999065005A2/en
Priority to AU57648/99A priority patent/AU5764899A/en
Publication of NO982640L publication Critical patent/NO982640L/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
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
    • G08B17/125—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions by using a video camera to detect fire or smoke

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

Fremgangsmåte og system for overvåking av et område, særlig for gass og/eller røykdeteksjon, omfattende følgende trinn: elektronisk registrering av et valgt område med et fastmontert kamera med en todimensjonal sensormatrise, for dannelse av et referansebilde av området, definisjon av et eller flere referanseområder innenfor referanse- bildet, gjentatt registrering av det valgte området, for dannelse av minst ett påfølgende bilde av området, sammenligning av det påfølgende bildet med referansebilde, og registrering av forskyvninger og/eller diffusering av de nevnte referansepunktene, på bakgrunn av registrerte endringer, utsendelse av et elektroniske eller optisk signal.Method and system for monitoring an area, in particular for gas and / or smoke detection, comprising the following steps: electronically recording a selected area with a fixed camera with a two-dimensional sensor matrix, for forming a reference image of the area, defining one or more reference areas within the reference image, repeating registration of the selected area, for forming at least one subsequent image of the area, comparing the subsequent image with the reference image, and recording offsets and / or diffusing the mentioned reference points, on the basis of registered changes, broadcasting of an electronic or optical signal.

NO982640A 1998-06-08 1998-06-08 Method and system for monitoring an area NO982640L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NO982640A NO982640L (en) 1998-06-08 1998-06-08 Method and system for monitoring an area
PCT/NO1999/000175 WO1999065005A2 (en) 1998-06-08 1999-06-01 Method and system for monitoring an area
AU57648/99A AU5764899A (en) 1998-06-08 1999-06-01 Method and system for monitoring an area

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO982640A NO982640L (en) 1998-06-08 1998-06-08 Method and system for monitoring an area

Publications (2)

Publication Number Publication Date
NO982640D0 NO982640D0 (en) 1998-06-08
NO982640L true NO982640L (en) 1999-12-09

Family

ID=19902133

Family Applications (1)

Application Number Title Priority Date Filing Date
NO982640A NO982640L (en) 1998-06-08 1998-06-08 Method and system for monitoring an area

Country Status (3)

Country Link
AU (1) AU5764899A (en)
NO (1) NO982640L (en)
WO (1) WO1999065005A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9822956D0 (en) * 1998-10-20 1998-12-16 Vsd Limited Smoke detection
AU3201101A (en) 2000-02-07 2001-08-14 Intelligent Security Limited Smoke and flame detection
ATE279762T1 (en) * 2000-03-20 2004-10-15 Sequr S A MONITORING SYSTEM
SE523456C2 (en) * 2001-09-28 2004-04-20 Wespot Ab System, device and method for setting up a monitoring unit
US7302080B2 (en) 2001-09-28 2007-11-27 Secumanagement B.V. System for installation
GB2428472A (en) * 2005-07-18 2007-01-31 Sony Uk Ltd Smoke detection by processing video images

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237308A (en) * 1991-02-18 1993-08-17 Fujitsu Limited Supervisory system using visible ray or infrared ray
US5289275A (en) * 1991-07-12 1994-02-22 Hochiki Kabushiki Kaisha Surveillance monitor system using image processing for monitoring fires and thefts
GB2269506B (en) * 1992-08-07 1996-02-07 Gec Ferranti Defence Syst Integrated-circuit image sensor
GB9609406D0 (en) * 1996-05-03 1996-07-10 Kelly Simon The "Pixxi" televisual surveillance alarm system
CA2275893C (en) * 1996-12-23 2005-11-29 Esco Electronics Corporation Low false alarm rate video security system using object classification

Also Published As

Publication number Publication date
NO982640D0 (en) 1998-06-08
WO1999065005A2 (en) 1999-12-16
AU5764899A (en) 1999-12-30
WO1999065005A3 (en) 2000-03-30

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application