Alarm system

Communications: electrical – Condition responsive indicating system – With particular system function

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340525, 340605, 34028614, G08B 2900

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active

053349709

ABSTRACT:
An alarm system includes alarm monitoring subsystems coupled by communication links to a central alarm processing subsystem. Each alarm processing subsystem includes sensor strings for detecting alarm conditions in a monitored region and means for locating a detected alarm condition along the length of a sensor string. An alarm message including a system identifier, a sensor string identifier and the distance of the alarm condition along the sensor string is communicated to the alarm processing system. The alarm processing system displays a stored representation of the monitored region when an alarm message is received. The system and sensor identifiers and the cable distance data are used to convert the cable distance into the coordinates of the physical location of the alarm condition and a marker of the alarm condition id displayed with the representation of the monitored region.

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