Communication system for a power distribution line

Details Communication system for a power distribution line Communication system for a power distribution line

1993-07-19

1996-12-03

Swarthout, Brent A.

Communications: electrical

Systems

Selsyn type

34031001, 340642, 340953, H04M 1104

Patent

active

055812295

ABSTRACT:
The invention provides a layered modulation data communication systems characterized by numerous, asynchronous data transmitters operating on a power line. Data is modulated onto relatively low frequency subcarriers. Subcarriers are used to modulate carriers centered on a common frequency. The subcarriers are frequency division multiplexed. Data is recovered by demodulating the subcarriers from the carriers and subsequently demodulating the data from the subcarriers.

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Remote Meter Reading, Load Control and Distribution System Automation Utilizing SWD Technology, Feb. 1994.

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