Monitoring and control system

Details Monitoring and control system Monitoring and control system

1981-09-14

1984-05-01

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

340310CP, 340538, 34082514, H04Q 900, H04M 1104

Patent

active

044464584

ABSTRACT:
A carrier current security monitoring and control system utilizes the alternating current power distribution system for residential, commercial, and industrial applications employs a synchronously gated, stable radio frequency carrier. A continuously supervised remote monitoring system comprising a central module and a plurality of remote modules, operating in a full duplex transmission mode for maximum reliability and integrity in a hostile transmission environment is provided.

REFERENCES:
patent: 3962547 (1976-06-01), Pattantyus-Abraham
patent: 4040046 (1977-08-01), Long et al.
patent: 4101834 (1978-07-01), Stutt et al.
patent: 4148021 (1979-04-01), Watanabe
patent: 4262283 (1981-04-01), Chamberlain et al.
patent: 4316179 (1982-02-01), Bliss et al.
patent: 4339746 (1982-07-01), Ulicki et al.
patent: 4342985 (1982-08-01), Desjardins
2039402A, Aug. 6, 1980, Great Britain, Kabat et al, Class 340-538 (11 Shts. Dwgs; 24 pp. of Spec.).

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