G - Physics – 08 – B
Patent
G - Physics
08
B
340/71
G08B 29/00 (2006.01) G08B 26/00 (2006.01)
Patent
CA 1244107
ABSTRACT OF THE DISCLOSURE An information transmission system for building management of automatic fire detectors, such as smoke and heat detectors, comprises a plurality of detector sensors in a circuit connected to a driving device which supplies power to energize the sensors. The circuit includes a plurality of circuit breakers for breaking at least one part of the circuit to isolate that part from an adjacent part. The circuit incorporates a plurality of stations, the microcomputers of which are arranged periodically to monitor the integrity of those parts of the circuit connected to their stations and to monitor, interpret and store information derived from any sensor incorporated in that station. The microcomputer determines from that information if an event affecting a change in ambience at that station has occurred. Each station has at least one of the circuit breakers controlled by its microcomputer for breaking at least one part of the circuit operationally to isolate that station from an adjacent station. A controller, which incorporates the driving device, is arranged to interrogate all the stations to identify any station at which an event has occurred, to analyse data relating to such event and to generate and send instructing signals to the station microcomputer.
497719
Appleby David
Johnson Duncan M.
Gent Limited
Sim & Mcburney
LandOfFree
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