Alarm system receiver supervisor

Details Alarm system receiver supervisor Alarm system receiver supervisor

1996-10-15

2000-04-25

Pope, Daryl

Communications: electrical

Condition responsive indicating system

With particular system function

34082506, 340539, G08B 2900

Patent

active

060549203

ABSTRACT:
A wireless sensor receiver module for an alarm and/or event reporting system having the capability of monitoring the operational integrity of associated wireless receiver circuitry relative to RF sensor transmissions. A receiver module supervisory timer is reset with the receipt of each sensor transmission, whether an event or supervisory transmission. If sensor transmissions are not received within a supervised receiver time period determined as a function of the number of system sensors, the receiver module communicates a receiver failure condition to the system controller. Noise monitoring circuitry separately monitors the transmissions to enhance the confidence in a receiver failure determination or adjust the period of the receiver module supervisory timer.

REFERENCES:
patent: 4772876 (1988-09-01), Laud
patent: 4988989 (1991-01-01), Goto

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