Wide-area chamberless point smoke detector

Wide-area chamberless point smoke detector

Open-chamber smoke detector and detection method. An elecromagnetic emitter emits radiation, a sensor receives the signal after it has travelled through the monitored area and analyses it to determine whether smoke is present by comparison with a reference signal representative of a smoke plume. An...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Harris, Peter R, Schatz, Paul, Vidulich, Joseph Anthony, Zribi, Anis, Zhang, Yan
Format: Patent
Sprache:eng
Schlagworte:
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Beschreibung
Zusammenfassung:Open-chamber smoke detector and detection method. An elecromagnetic emitter emits radiation, a sensor receives the signal after it has travelled through the monitored area and analyses it to determine whether smoke is present by comparison with a reference signal representative of a smoke plume. An alarm condition is signaled when an evolution in the obtained data corresponds to the reference profile within a threshold amount.