G - Physics – 08 – B
Patent
G - Physics
08
B
G08B 29/14 (2006.01) G08B 17/10 (2006.01) G08C 17/02 (2006.01)
Patent
CA 2427320
A cost effective system for testing smoke detectors and determining and communicating the operating characteristics thereof, advantageously uses existing circuitry components in a secondary communication function. With this arrangement, a low powered RF reporting signal is transmitted from the smoke detector and can be received within several feet of the detector. Preferably the RF signal is produced by a pulsed input signal provided to an existing coil which is part of the circuitry used to produce and/or report alarm signals. A receiving arrangement is also disclosed which can be located in close proximity to a smoke detector which has been activated to report the operating characteristics thereof. These characteristics can then be analyzed to determine whether preventive maintenance is appropriate.
Lennartz Gary
Singleton Scott
Digital Security Controls Ltd.
Smart & Biggar
Tyco Safety Products Canada Ltd./produits de Securite Tyco Canad
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