Power-line communication systems AMD methods having location-extendable collector for end-point data

• US 10,270,491 B2
• Filed: 08/31/2017
• Issued: 04/23/2019
• Est. Priority Date: 08/31/2017
• Status: Active Grant

• Current Assignee: Landis+Gyr Inc. (Landis+Gyr Group AG)
• Original Assignee: Landis+Gyr Inc. (Landis+Gyr Group AG)
• Inventors: Haug, Stuart, Bonicatto, Damian, Flen, Rolf, Zeppetelle, Robert
• Primary Examiner(s): Tieu, Janice N
• Application Number:
  US15/692,984
• Publication Number:
  US 20190068243A1
• Time in Patent Office: 600 Days
• CPC Class Codes: H04B 3/542 the information being in digital form
• CPC Class Codes: H04B 3/56 Circuits for coupling, blocking, or by-passing of signals
• CPC Class Codes: H04L 12/00 Data switching networks interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units G06F13/00
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Abstract

Power-line communication (PLC) systems collect information over power lines from end-point devices respectively associated with customer sites, for assessment by a central processing circuit operated on behalf of a power utility company. In the PLC system, each of a number of PLC data-collector circuits includes a plurality of data interface units and PLC end-point device data computation circuit. Typically, one data interface circuit is located proximate, and another is distal, the location of the computation circuit. Each data interface unit includes a transformer circuit for selectively receiving data from a subset of the end-point devices via the power lines, a transformer-coupling circuit for selectively sending data to the subset of the end-point devices via the power lines, and a high-throughput data driver circuit for outputting data in accordance with a data-transfer protocol which is common to the other high throughput driver circuits which operate in accordance with the data-transfer protocol.

Claims

1. A power-line communication (PLC) apparatus for collecting information, for assessment by a power utility company, over power lines connecting to a plurality of customer sites, the apparatus comprising:

a plurality of communication devices respectively and communicatively associated with the plurality of customer sites, each of the plurality of communication devices configured and arranged to operate by power received over the power lines at the associated customer site, and to communicate data over the power lines via a customer-site transformer;

a central processing circuit configured and arranged, on behalf of the power utility company, to collect information derived from the data sent over the power lines from each of the plurality of communication devices, by using a broadband communication network for carrying the collected information; and

a remoteable data-collector circuit including;

a plurality of data interface units, each of the plurality of data interface units including a transformer circuit for selectively receiving data from a subset of the plurality of communication devices via the power lines, including a transformer-coupling circuit for selectively sending data to the subset of the plurality of communication devices via the power lines, and including a high-throughput data driver circuit for outputting data in accordance with a data-transfer protocol, the data-transfer protocol being common to high throughput driver circuits of each of the plurality of data interface units; and

a PLC end-point device data computation circuit including a plurality of high-throughput data reception circuits and configured and arranged to operate at a location that is remote from the plurality of customer sites, to be communicatively coupled to each of the plurality of communication devices over the power lines via the plurality of data interface units, to receive data from each of the plurality of data interface units in parallel via the high-throughput data reception circuits and in accordance with the data-transfer protocol, and to communicate data with and send the collected information to the central processing circuit via the broadband communication network.

2. The PLC apparatus of claim 1, further including a case configured for housing the PLC end-point device data computation circuit along with at least one of the plurality of data interface units, wherein another of the plurality of data interface units is located at least ninety feet from the location of the PLC end-point device data computation circuit.

3. The PLC apparatus of claim 1, wherein respective locations of the plurality of data interface units are configured and used by the central processing circuit to generate and output a report, for or on behalf of the power utility, which identifies one or more respective regions of customer sites associated with a possible power outage event.

4. The PLC apparatus of claim 1, wherein the plurality of data interface units are configured for processing data with at least one of the plurality of data interface units being located away from the location of the PLC end-point device data computation circuit with the data-transfer protocol characterized in that the at least one of the plurality of data interface units transmits data, received or derived from one or more of the subset of the plurality of communication devices via the power lines, to the computation circuit as data which is not decimated for data bit detection, and wherein the computation circuit includes circuitry configured and arranged to provide decimation for data bit detection of the data transmitted from the at least one of the plurality of data interface units.

5. The PLC apparatus of claim 1, wherein the plurality of data interface units are configured for processing data with at least one of the plurality of data interface units being located away from the location of the PLC end-point device data computation circuit with the data-transfer protocol characterized in that the at least one of the plurality of data interface units transmits data, received or derived from one or more of the subset of the plurality of communication devices via the power lines, to the computation circuit as data which is filtered and decimated for data bit detection, and wherein the computation circuit includes circuitry configured and arranged to detect data bits from the data transmitted from said at least one of the plurality of data interface units.

6. The PLC apparatus of claim 1, wherein the plurality of data interface units are configured for processing data with at least one of the plurality of data interface units being located away from the location of the PLC end-point device data computation circuit with the data-transfer protocol characterized in that the at least one of the plurality of data interface units include circuitry configured and arranged to process the data received via the power lines by filtering, providing signal decimation and in response detect data bits therefrom, and to transmit the detected data bits to the computation circuit.

7. The PLC apparatus of claim 1, wherein the plurality of data interface units are configured for processing data with one of the plurality of data interface units which, when installed at a location away from the location of the PLC end-point device data computation circuit, is configured to transmit specific bits of data to the computation circuit, and another one of the plurality of data interface units is configured to transmit the same specific bits of data to the computation circuit, and wherein the computation circuit is configured and arranged to combine energy corresponding to the specific bits as received from each of said one and said another of the plurality of data interface units, and by combining energy therein improves signal quality of signals represented by the energy for discernment of the specific bits.

8. A method for collecting information, for assessment by a power utility company, over power lines connecting to a plurality of customer sites, the method comprising:

providing power to a plurality of communication devices respectively and communicatively associated with the plurality of customer sites via power lines, and communicating data, by the plurality of communications devices, over the power lines via a customer-site transformer;

carrying and collecting, on behalf of the power utility company and by a central processing circuit, information derived from the data sent over the power lines from each of the plurality of communication devices, using a broadband communication network for carrying the collected information; and

using a remoteable data-collector circuit to;

selectively receive, via a plurality of data interface units of the remoteable data-collector circuit and with each of the plurality of data interface units including a transformer circuit, data from a subset of the plurality of communication devices via the power lines;

selectively send, via a transformer-coupling circuit of the plurality of data interface units, data to the subset of the plurality of communication devices via the power lines;

output, via a high-throughput data driver circuit of the plurality of data interface units, data in accordance with a data-transfer protocol, the data-transfer protocol being common to high throughput data driver circuits of each of the plurality of data interface units; and

receive, via a PLC end-point device data computation circuit of the remoteable data-collector circuit, the PLC end-point device data computation circuit having high-throughput data reception circuits, data from each of the plurality of data interface units in parallel and in accordance with the data-transfer protocol, and communicating data with and sending the collected information to the central processing circuit via the broadband communication network, wherein the PLC end-point device data computation circuit includes a plurality of high-throughput data reception circuits and configured and arranged to operate at a location that is remote from the plurality of customer sites, to be communicatively coupled to each of the plurality of communication devices over the power lines via the plurality of data interface units.

9. The method of claim 8, further including generated and outputting, via the central processing circuit, a report based on respective locations of the plurality of data interface units are configured, which identifies one or more respective regions of customer sites associated with a possible power outage event.

10. The method of claim 8, further including processing data, via the plurality of data interface units, with at least one of the plurality of data interface units being located away from the location of the PLC end-point device data computation circuit with the data-transfer protocol characterized in that the at least one of the plurality of data interface units include circuitry configured and arranged to process the data received via the power lines by filtering, providing signal decimation and in response detect data bits therefrom, and transmitting the detected data bits to the computation circuit.