Bidirectional, interactive fire detection system

Details Bidirectional, interactive fire detection system Bidirectional, interactive fire detection system

G - Physics

08

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340/71

G08B 17/00 (2006.01) G08B 25/04 (2006.01) G08B 29/00 (2006.01)

Patent

CA 1178678

81099-BKR BIDIRECTIONAL, INTERACTIVE FIRE DETECTION SYSTEM Abstract of the Disclosure A communication system useful for fire detection which transfers data/commands bi- directionally between a controller and connected transponders on a real time, interactive basis. This system makes possible accurate data recovery, whether a transponder has its output shorted, or although multiple transponders are replying at the same time. The system makes possible the remote determination and constant monitoring of transducer sensitivity, at the controller. The sensitivity can be adjusted remotely at the controller, and different transducers can have different thresholds simultaneously. These thresholds (limits) can be changed collectively or individually to different settings manually or automatically at the controller. The system trans- mits reference data for supervision of system ac- curacy. Compensation for long-term changes is provided for both transponders and transducers in this system.

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