SG97742A1 - A method and apparatus for preventing the occurence of false responses in optical detection devices - Google Patents

A method and apparatus for preventing the occurence of false responses in optical detection devices

Info

Publication number
SG97742A1
SG97742A1 SG9606075A SG1996006075A SG97742A1 SG 97742 A1 SG97742 A1 SG 97742A1 SG 9606075 A SG9606075 A SG 9606075A SG 1996006075 A SG1996006075 A SG 1996006075A SG 97742 A1 SG97742 A1 SG 97742A1
Authority
SG
Singapore
Prior art keywords
occurence
preventing
optical detection
detection devices
false responses
Prior art date
Application number
SG9606075A
Inventor
William Joseph Senior Hirst
Original Assignee
Shell Int Research
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 Shell Int Research filed Critical Shell Int Research
Publication of SG97742A1 publication Critical patent/SG97742A1/en

Links

Classifications

    • 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

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
SG9606075A 1993-08-31 1994-08-30 A method and apparatus for preventing the occurence of false responses in optical detection devices SG97742A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93306865 1993-08-31

Publications (1)

Publication Number Publication Date
SG97742A1 true SG97742A1 (en) 2003-08-20

Family

ID=8214523

Family Applications (1)

Application Number Title Priority Date Filing Date
SG9606075A SG97742A1 (en) 1993-08-31 1994-08-30 A method and apparatus for preventing the occurence of false responses in optical detection devices

Country Status (8)

Country Link
EP (1) EP0715744B1 (en)
AU (1) AU7537594A (en)
CA (1) CA2170519A1 (en)
DE (1) DE69407190T2 (en)
DK (1) DK0715744T3 (en)
NO (1) NO960783L (en)
SG (1) SG97742A1 (en)
WO (1) WO1995006927A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1236183A2 (en) * 1999-12-10 2002-09-04 Durand Technology Limited Improvements in or relating to applications of fractal and/or chaotic techniques
DE102009048739B3 (en) * 2009-07-14 2012-03-29 Deutsches Zentrum für Luft- und Raumfahrt e.V. Automatic forest fire detection method involves triggering alarm, if fractal dimensions of grey values of current image and cluster surface of binarized image, and respective axis intercept lie within preset value

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001230A1 (en) * 1985-08-22 1987-02-26 Santa Barbara Research Center Fire sensor statistical discriminator
US4866420A (en) * 1988-04-26 1989-09-12 Systron Donner Corp. Method of detecting a fire of open uncontrolled flames
US5051590A (en) * 1989-12-06 1991-09-24 Santa Barbara Research Center Fiber optic flame detection and temperature measurement system having one or more in-line temperature dependent optical filters
EP0506319A2 (en) * 1991-03-28 1992-09-30 Eaton Corporation Chaos sensing arc detection
EP0525592A2 (en) * 1991-07-26 1993-02-03 Hitachi, Ltd. Information processing system using fractal dimension
US5201321A (en) * 1991-02-11 1993-04-13 Fulton Keith W Method and apparatus for diagnosing vulnerability to lethal cardiac arrhythmias

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001230A1 (en) * 1985-08-22 1987-02-26 Santa Barbara Research Center Fire sensor statistical discriminator
US4866420A (en) * 1988-04-26 1989-09-12 Systron Donner Corp. Method of detecting a fire of open uncontrolled flames
US5051590A (en) * 1989-12-06 1991-09-24 Santa Barbara Research Center Fiber optic flame detection and temperature measurement system having one or more in-line temperature dependent optical filters
US5201321A (en) * 1991-02-11 1993-04-13 Fulton Keith W Method and apparatus for diagnosing vulnerability to lethal cardiac arrhythmias
EP0506319A2 (en) * 1991-03-28 1992-09-30 Eaton Corporation Chaos sensing arc detection
EP0525592A2 (en) * 1991-07-26 1993-02-03 Hitachi, Ltd. Information processing system using fractal dimension

Also Published As

Publication number Publication date
CA2170519A1 (en) 1995-03-09
NO960783L (en) 1996-03-12
EP0715744B1 (en) 1997-12-03
DK0715744T3 (en) 1998-08-10
DE69407190D1 (en) 1998-01-15
EP0715744A1 (en) 1996-06-12
AU7537594A (en) 1995-03-22
WO1995006927A1 (en) 1995-03-09
NO960783D0 (en) 1996-02-27
DE69407190T2 (en) 1998-05-20

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