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US 5,892,430 AGranted
Self-powered powerline sensor
AssigneeFoster-Miller, Inc.
InventorsRichard M. Wiesman, Timothy J. Mason
Life of this patent
Estimating the term…
Abstract
A self-powered powerline sensor includes a core layer for wrapping about an a.c. powerline; a winding layer, including of a plurality of windings to be energized by the a.c. powerline, disposed about the core layer; means for sensing a condition in or about the a.c. powerline; and means, powered by the windings, in communication with the means for sensing, for transmitting a signal representative of the sensed condition over the a.c. powerline.
Claims46
A self-powered powerline sensor, comprising:
- a core layer for wrapping about an a.c. powerline;
- a winding layer, including a plurality of windings to be energized by the a.c. powerline, disposed about said core layer;
- means for sensing a condition in or about the a.c. powerline, said means for sensing located proximate said a.c. powerline;
- and
- means, powered by said windings, in communication with said means for sensing, for transmitting a signal representative of the sensed condition over the a.c. powerline;
- said signal being coupled to the a.c. powerline by non-contacting transformer action.
3 more elements
A self-powered powerline sensor, comprising:
- a core layer for wrapping about an a.c. powerline;
- a winding layer disposed about said core layer;
- said winding layer including a plurality of windings to be energized by the a.c. powerline by non-contacting transformer action;
- means for sensing a condition in or about the a.c. powerline, said means for sensing located proximate said a.c. powerline;
- and
- means, powered by said windings and in communication with said means for sensing, for transmitting a signal representative of the sensed condition over the a.c. powerline;
- said signal being coupled to the a.c. powerline by non-contacting transformer action.
4 more elements
A self-powered powerline sensor, comprising:
- a core layer of high permeability ferromagnetic material for wrapping about an a.c. powerline;
- a winding layer, including a plurality of windings to be energized by said a.c. powerline, disposed about said core layer;
- said windings oriented parallel to said a.c. powerline;
- means for sensing a condition in or about said a.c. powerline, said means for sensing located proximate said a.c. powerline;
- a remote base station;
- and
- controller means, powered by said windings, in communication with said means for sensing, for transmitting a signal representative of said sensed condition over said a.c. powerline to said remote base station and for receiving signals transmitted from said remote base station.
4 more elements
A self-powered powerline sensor, comprising:
- means for sensing a condition in or about an a.c. powerline;
- means, in communication with the means for sensing, for receiving signals representative of the sensed condition and averaging the received signals over a period of time to establish a nominal condition level;
- means, responsive to said means for receiving, for detecting variations of said received signals from said nominal condition level;
- and
- means, responsive to said means for detecting, for transmitting said variations on the a.c. powerline.
2 more elements
A self-powered powerline sensor, comprising:
- a core layer for wrapping about an a.c. powerline;
- a winding layer, including a plurality of windings to be energized by the a.c. powerline, disposed about said core layer;
- means for sensing a condition in or about said a.c. powerline, said means for sensing located proximate said a.c. powerline;
- a remote base station;
- and
- controller means, powered by said windings, in communication with said means for sensing, for transmitting a signal representative of said sensed condition over said a.c. powerline to said remote base station and for receiving signals transmitted from said remote base station.
3 more elements
A self-powered powerline sensor, comprising:
- means for sensing a condition in or about an a.c. powerline;
- means, in communication with said means for sensing, for receiving signals representative of the sensed condition and averaging the received signals over a period of time to establish a nominal condition level;
- and
- means, responsive to said means for receiving, for detecting variations of said received signals from said nominal condition level.
1 more element
Dependencies are inferred from the claim text.