BR0209543A - Método e aparelho de detecção de fogo através de formação de imagem da chama - Google Patents

Método e aparelho de detecção de fogo através de formação de imagem da chama

Info

Publication number
BR0209543A
BR0209543A BR0209543-2A BR0209543A BR0209543A BR 0209543 A BR0209543 A BR 0209543A BR 0209543 A BR0209543 A BR 0209543A BR 0209543 A BR0209543 A BR 0209543A
Authority
BR
Brazil
Prior art keywords
frames
flame
blobs
processes
image
Prior art date
Application number
BR0209543-2A
Other languages
English (en)
Inventor
John D King
Paul M Junck
Original Assignee
Detector Electronics
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 Detector Electronics filed Critical Detector Electronics
Publication of BR0209543A publication Critical patent/BR0209543A/pt

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00Fire alarms; Alarms responsive to explosion
    • G08B17/12Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
    • G08B17/125Actuation 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

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Image Analysis (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

"MéTODO E APARELHO DE DETECçãO DE FOGO ATRAVéS DE FORMAçãO DE IMAGEM DA CHAMA". A invenção refere-se a aparelho e método para realizar primeiro e segundo processos de formação de imagem contemporaneamente, em particular onde um dos processos está detectando incêndios com base em imagens das chamas. O aparelho inclui um sensor de imagem para produzir uma imagem de vídeo, um capturador de quadros para capturar primeiros quadros e segundos quadros, um processador para processar os dados dentro dos quadros e um dispositivo de saída. O aparelho pode incluir também um mecanismo de ajuste para ajustar as regulagens de imagem do sensor de imagem entre regulagens adequadas para formação de imagem de chamas e formação de imagem de não-chamas e um mecanismo de controle para controlar regulagens de imagem do superfície interna. No método pelo menos os primeiros quadros são obtidos e uma pluralidade de segundos quadros são obtidos. Os primeiros e segundos quadros são usados para primeiros e segundos processos. Os primeiros e segundos processos são contemporâneos, de modo que eles são realizados dentro do mesmo período de tempo sem interferir um com o outro. Quando o primeiro processo é detecção de chamas, pares individuais de pixels tendo uma propriedade, tal como intensidade, que satisfaz um primeiro limite, são identificados dentro dos primeiros quadros e são montados em blobs. Propriedades adicionais dos pares de pixels e a totalidade de blobs são avaliadas em relação com limites adicionais. Os blobs ou pixels que não satisfazem os limites são excluídos. Quaisquer blobs restantes após todas as avaliações são considerados incêndios.
BR0209543-2A 2001-05-11 2002-05-09 Método e aparelho de detecção de fogo através de formação de imagem da chama BR0209543A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29041701P 2001-05-11 2001-05-11
PCT/US2002/014609 WO2002093525A1 (en) 2001-05-11 2002-05-10 Method and apparatus of detecting fire by flame imaging

Publications (1)

Publication Number Publication Date
BR0209543A true BR0209543A (pt) 2005-04-26

Family

ID=23115893

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0209543-2A BR0209543A (pt) 2001-05-11 2002-05-09 Método e aparelho de detecção de fogo através de formação de imagem da chama

Country Status (8)

Country Link
US (1) US7155029B2 (pt)
EP (1) EP1397790A1 (pt)
BR (1) BR0209543A (pt)
CA (1) CA2447137A1 (pt)
IL (1) IL158680A0 (pt)
NO (1) NO20034983D0 (pt)
RU (1) RU2003133287A (pt)
WO (1) WO2002093525A1 (pt)

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Also Published As

Publication number Publication date
CA2447137A1 (en) 2002-11-21
NO20034983D0 (no) 2003-11-10
US20030044042A1 (en) 2003-03-06
IL158680A0 (en) 2004-05-12
US7155029B2 (en) 2006-12-26
EP1397790A1 (en) 2004-03-17
WO2002093525A1 (en) 2002-11-21
RU2003133287A (ru) 2005-05-27

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Legal Events

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B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]