System and method for antenna failure detection

Details System and method for antenna failure detection System and method for antenna failure detection

1998-06-03

2000-09-05

Pope, Daryl

Communications: electrical

Condition responsive indicating system

With particular coupling link

340506, 340511, 34028602, 340292, 455 674, G08B 108

Patent

active

061149551

ABSTRACT:
In a wireless security system, the system controller includes one or more antennas for reception of signals from remote sensor-transmitter units. To detect antenna failure, the system controller generates a test signal with a known parameter and transmits this test signal via a first antenna. The system controller then measures the parameter of the corresponding test signal received, if any, via a second antenna, and compares the parameter of the corresponding test signal received to a predetermined threshold parameter. When the parameter of the test signal received via the second antenna differs from the threshold by a predetermined amount, or predetermined margin for error, an antenna failure message is generated.

REFERENCES:
patent: 3618083 (1971-11-01), Burley et al.
patent: 4554410 (1985-11-01), Furumoto
patent: 4603325 (1986-07-01), Marino et al.
patent: 5160915 (1992-11-01), Kiss
patent: 5294934 (1994-03-01), Matsumoto

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