Use of powerlines for transmission of high frequency signals
First Claim
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1. A method of wireless communication, comprising:
- receiving a wirelessly transmitted radio signal at a powerline adapted for conveying an alternating current power signal wherein the powerline functions as a receiving antenna for the wirelessly transmitted radio signal;
coupling the powerline to an input of a radio receiver using a coupler to communicate the radio signal to the radio receiver;
wherein the coupler provides for blocking the alternating current power signal while limiting radio frequency loss and providing surge protection;
sending a second radio signal from a radio transmitter through the coupler and to the powerline wherein the powerline functions as a sending antenna for the second radio signal.
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Abstract
Communication is provided which includes receiving a transmitted radio signal at a powerline wherein the powerline functions as a receiving antenna for the wirelessly transmitted radio signal. The powerline is coupled to an input of a radio receiver using a coupler to communicate the radio signal to the radio receiver. For calibration purposes a second antenna not coupled to powerline may be used. A method for powerline communication across transformers, open circuit breakers, and other devices is also provided. In addition, a method of monitoring a device connected to a powerline is provided.
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Citations
20 Claims
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1. A method of wireless communication, comprising:
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receiving a wirelessly transmitted radio signal at a powerline adapted for conveying an alternating current power signal wherein the powerline functions as a receiving antenna for the wirelessly transmitted radio signal; coupling the powerline to an input of a radio receiver using a coupler to communicate the radio signal to the radio receiver; wherein the coupler provides for blocking the alternating current power signal while limiting radio frequency loss and providing surge protection;
sending a second radio signal from a radio transmitter through the coupler and to the powerline wherein the powerline functions as a sending antenna for the second radio signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system, comprising:
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a radio receiver having an input; a line coupler electrically connected to the a power line, the power line providing an alternating current line level voltage and wherein the powerline functions as an antenna for the radio receiver; wherein the line coupler provides for blocking the alternating current line level voltage while limiting radio frequency loss and providing surge protection;
wherein the radio receiver further comprises a second input and an antenna electrically connected to the second input of the radio receiver to thereby provide data for use in calibration. - View Dependent Claims (15, 16, 17)
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18. A system, comprising:
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a radio transmitter having an output; a line coupler electrically connected to the transmitter output and to a power line, the power line providing an alternating current line level voltage and wherein the powerline functions as an antenna for the radio transmitter; and wherein the line coupler provides for blocking the alternating current line level voltage while limiting radio frequency loss and providing surge protection;
wherein the radio receiver further comprises a second input and an antenna electrically connected to the second input of the radio receiver to thereby provide data for use in calibration. - View Dependent Claims (19, 20)
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Specification