Data communication over power lines
First Claim
1. A system for receiving and processing a plurality of signals received from a plurality of different customer-based endpoints within a three-phase power distribution system, the three-phase power distribution system comprising:
- the plurality of different customer-based endpoints respectively located at customer sites in an area served by at least one power distribution substation, each endpoint of the plurality of different customer-based endpoints including an endpoint transmitter in an electrical communication with power distribution lines within the three-phase power distribution systema three-phase power line coupler;
a substation receiver in the electrical communication with the three-phase power line coupler; and
a substation circuit in the electrical communication with the substation receiver, the substation circuit configured to simultaneously demodulate the plurality of signals concurrently received from the plurality of different customer-based endpoints by separating a channel on the power distribution lines carrying the plurality of signals into respective signal processing signal paths associated with different ones of the plurality of different customer-based endpoints which are configured to be located at the customer sites, each of the respective signal processing signal paths having a different respective bandwidth.
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Accused Products
Abstract
A system for receiving and processing signals received from a plurality of endpoints. Each endpoint includes an endpoint transmitter in electrical communication with a power distribution line within a power distribution system. The system comprises a power line coupler. A substation receiver is in electrical communication with the power line coupler. A substation circuit is in electrical communication with the substation transceiver. The substation circuit is configured to simultaneously demodulate signals received from the plurality of different endpoints.
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Citations
22 Claims
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1. A system for receiving and processing a plurality of signals received from a plurality of different customer-based endpoints within a three-phase power distribution system, the three-phase power distribution system comprising:
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the plurality of different customer-based endpoints respectively located at customer sites in an area served by at least one power distribution substation, each endpoint of the plurality of different customer-based endpoints including an endpoint transmitter in an electrical communication with power distribution lines within the three-phase power distribution system a three-phase power line coupler; a substation receiver in the electrical communication with the three-phase power line coupler; and a substation circuit in the electrical communication with the substation receiver, the substation circuit configured to simultaneously demodulate the plurality of signals concurrently received from the plurality of different customer-based endpoints by separating a channel on the power distribution lines carrying the plurality of signals into respective signal processing signal paths associated with different ones of the plurality of different customer-based endpoints which are configured to be located at the customer sites, each of the respective signal processing signal paths having a different respective bandwidth. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of processing a plurality of signals received from a plurality of different customer-based endpoints, the method comprising:
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respectively locating at customer sites in an area served by at least one power distribution substation, each endpoint including an endpoint transmitter in electrical communication with power distribution lines; concurrently receiving the plurality of signals from a power distribution line of the power distribution lines, each signal of the plurality of signals corresponding to a different frequency bandwidth; and demodulating the plurality of signals by separating a channel on the power distribution lines carrying the plurality of signals into respective signal processing signal paths associated with different ones of the plurality of different customer-based endpoints which are configured to be located at the customer sites, each of the respective signal processing signal paths having a respective different frequency bandwidth. - View Dependent Claims (13, 14, 15, 17, 18, 19)
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16. A system for receiving and processing a plurality of signals received from a plurality of different customer-based endpoints respectively located at customer sites in an area served by at least one power distribution substation, each endpoint including an endpoint transmitter in an electrical communication with power distribution lines within a three-phase power distribution system, the power distribution system comprising:
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a three-phase power line coupler including a three-phase power-line transformer respectively coupling power to a line of the power distribution lines, the line of the power distribution lines having a respective conductor for each of three phases of the three-phase power line coupler; an interface for communicating data with a utility central office; a substation receiver in the electrical communication with the three-phase power line coupler; and a substation circuit in the electrical communication with the substation receiver, the substation circuit configured to simultaneously demodulate the plurality of signals concurrently received from the plurality of different customer-based endpoints by separating a channel on the power distribution lines carrying the plurality of signals into respective signal processing signal paths associated with different ones of the plurality of different customer-based endpoints; and mitigate signal bleed in transmitting of a control signal to the plurality of different customer-based endpoints by transmitting the control signal over each of a plurality of conductors for the three phases of the three-phase power line coupler with a different phase. - View Dependent Claims (20, 21, 22)
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Specification