Circuit and method for prioritization of hazardous condition...

G - Physics – 08 – B

Patent

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G08B 25/00 (2006.01) G08B 27/00 (2006.01)

Patent

CA 2582905

An interface circuit and method for use in interconnected hazardous condition detectors is provided. This circuit and method prioritizes the various hazardous condition alarms to ensure that only the highest priority or greatest threat alarm is sounded when such a condition is detected. In this way a lower priority alarm that may be sounding will be switched to a higher priority alarm so that all interconnected detectors that have the capability will sound the higher priority alarm. This will reduce occupant confusion during a hazardous condition. The circuit and method also provides the ability to silence all interconnected detectors except for those sensing the hazardous condition to allow the occupant to locate the triggering alarm, and there for the location of the sensed hazardous condition.

L'invention concerne un circuit d'interface ainsi qu'un procédé d'utilisation de détecteurs de situations dangereuses interconnectés. Les circuit et procédé établissent les priorités entre les diverses alarmes de situations dangereuses pour garantir que seule la situation de première priorité ou l'alarme de la menace la plus élevée retentisse lorsque qu'une telle situation est détectée. Ainsi, une alarme de situation moins prioritaire pouvant retentir est basculée sur une alarme de première priorité de sorte que l'ensemble des détecteurs interconnectés aptes à le faire fassent retentir l'alarme de première priorité. Ceci permet d'atténuer la confusion chez les occupants des lieux lors d'une situation dangereuse. Par ailleurs, ces circuit et procédé permettent d'éteindre l'ensemble des détecteurs interconnectés exceptés ceux qui détectent les situations dangereuses, de sorte que les occupants puissent localiser l'alarme de déclenchement, et par conséquent, localiser la situation dangereuse.

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