Multiple alarm detector monitoring and command system

Details Multiple alarm detector monitoring and command system Multiple alarm detector monitoring and command system

1980-09-15

1982-10-26

Caldwell, Sr., John W.

Communications: electrical

Condition responsive indicating system

With particular system function

340506, 340508, 340511, 340510, G08B 1900

Patent

active

043564763

ABSTRACT:
A plurality of fire, smoke, security or other detectors of the type which respond to the existence of a predetermined condition are each connected to an input module which monitors the state of the detectors. The input module is connected to an alarm module and when a predetermined number of detectors simultaneously detect the existence of fire, smoke or a breach in security or the like, the alarm module provides a suitable pre-selected command to sound an alarm, commence an interlock and/or activate a predetermined management decision to activate other devices for fire or security protection, such as the automatic discharge of an extinguishing agent, etc. The alarm module may provide different commands depending upon the number of detectors which are simultaneously triggered. In addition, certain preselected detectors may cause the alarm module to provide a command signal regardless of the number of detectors which are simultaneously triggered.

REFERENCES:
patent: 3599195 (1971-08-01), Boyko
patent: 4103293 (1978-07-01), La Forge
patent: 4195286 (1980-03-01), Galvin
patent: 4204201 (1980-05-01), Williams et al.

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