Configuration over power distribution lines

• US 9,276,634 B1
• Filed: 04/27/2015
• Issued: 03/01/2016
• Est. Priority Date: 12/22/2011
• Status: Active Grant

• Current Assignee: Landis+Gyr Inc. (Landis+Gyr Group AG)
• Original Assignee: Landis+Gyr Inc. (Landis+Gyr Group AG)
• Inventors: Duff, John F., Flen, Rolf, Christiansen, Scott H.
• Primary Examiner(s): Bayard, Emmanuel
• Application Number:
  US14/697,193
• Time in Patent Office: 309 Days
• Field of Search: 375/257, 375/259
• US Class Current: 1/1
• CPC Class Codes: G01D 4/002 Remote reading of utility meters
• CPC Class Codes: G01D 4/004 Remote reading of utility meters to a fixed location
• CPC Class Codes: H04B 2203/5433 Remote metering
• CPC Class Codes: H04B 3/542 the information being in digital form
• CPC Class Codes: H04B 3/544 Setting up communications; Call and signalling arrangements
• CPC Class Codes: H04L 41/0816 the condition being an adaptation, e.g. in response to network events
• CPC Class Codes: H04L 41/0823 characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability for optimising operational conditions of wireless networks H04W24/02
• CPC Class Codes: H04L 65/611 for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 69/28 Timers or timing mechanisms used in protocols
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y04S 20/30 Smart metering, e.g. specially adapted for remote reading

Abstract

Aspects of the present disclosure are directed toward the use of broadcast transmissions to multiple endpoint devices. These broadcast transmissions can be particularly useful for reducing the communication bandwidth used during transmission of configuration data to the endpoint devices. In order to implement the broadcast communications, the present disclosure describes a mechanism for configuring targeted endpoint devices to be responsive to the broadcast communications. For instance, a configuration command can be sent to each of the targeted endpoint devices. The configuration command can include a virtual ID. The targeted endpoint devices can configure themselves to listen for subsequent broadcast messages addressed to the virtual ID. Configuration data can then be sent using the virtual ID and associated broadcast messages.

Claims

1. A method for providing configuration data while conserving bandwidth of communications over power distribution lines carrying alternating current (AC) power, where bandwidth is shared between a plurality of endpoint devices that are configured to provide utility usage data over the power distribution lines, the method comprising:

identifying a group of endpoint devices, each including circuitry, from the plurality of endpoint devices, that are targeted for changes to stored configuration data;

developing a communication plan by selecting between group identifications (IDs) for subsets of the plurality of endpoint devices, the subsets of the plurality of endpoint devices including less than all the plurality of endpoint devices;

communicating, over the power distribution lines, a configuration request according to the communication plan and by broadcasting the request to the selected group ID(s);

communicating, over power distribution lines, configuration commands to endpoint devices of one of the subsets using broadcast messages that reduce the data bandwidth over power distribution lines;

communicating, over power distribution lines, utility usage data interspersed with confirmation data indicating that the configuration commands were received by the endpoint devices of said one of the subsets; and

for another of the subsets, adjusting the communication plan in response to the confirmation data and in response, communicating over power distribution lines configuration commands to the endpoint devices of the other of the subsets using broadcast messages, wherein at least some of the configuration commands are broadcast based upon an indication of available bandwidth on the power distribution lines.

2. The method of claim 1, wherein the step of developing the communication plan includes selecting a transmission rate for the broadcast messages as a function of the shared bandwidth, and wherein the respective steps of communicating over power distribution lines configuration commands including broadcasting respective configuration commands based on different assessments of available bandwidth on the power distribution lines.

3. The method of claim 1, wherein the step of developing the communication plan includes developing a tiered grouping of the group of endpoint devices according to stored communication metrics representing data transmission fidelity of the group of endpoint devices.

4. The method of claim 1, wherein the configuration request indicates what types of configuration commands will be sent and wherein the step of communicating confirmation data is responsive to a comparison between the indicated types of configuration commands and those configuration commands actually received.

5. The method of claim 1, wherein the step of adjusting the communication plan in response to the confirmation data includes grouping endpoints based upon their progress toward receiving the configuration commands.

6. The method of claim 1, further including a step of communicating, over power distribution lines, configuration cancel commands to at least one endpoint of the group of endpoint devices.

7. The method of claim 1, wherein said one of the subsets and said other of the subsets are assigned based upon corresponding and different configuration data of the endpoint devices.

8. The method of claim 1, further including sending data over the power distribution lines to provide the indication of available bandwidth.

9. The method of claim 1, wherein the indication of available bandwidth is generated in circuitry communicatively coupled to the endpoint devices via the power distribution lines, and further including transmitting to the endpoint devices data that indicates an allocation of available bandwidth for each of the endpoint devices.

10. The method of claim 1, wherein the indication of available bandwidth is generated in circuitry communicatively coupled to the endpoint devices via the power distribution lines, and further including:

transmitting to the endpoint devices data that indicates an allocation of available bandwidth for each of the endpoint devices; and

determining an allocation of available bandwidth for each of the endpoint devices by using a channel allocation technique.

11. The method of claim 1, wherein the indication of available bandwidth is generated in circuitry communicatively coupled to the endpoint devices via the power distribution lines by using a channel allocation technique that is based on a tiered communication plan configured to lessen an adverse impact of a subset of the endpoint devices by allowing communication over the power distribution lines with other ones of the endpoint devices while providing a communication plan that allows the subset of the endpoint devices to advance at a slower rate.

12. The method of claim 1, wherein the indication of available bandwidth is generated in circuitry communicatively coupled to the endpoint devices via the power distribution lines by using a channel allocation technique that is based on each of the endpoint devices being assigned a particular channel for communications using Orthogonal Frequency-Division Multiple Access (OFDMA) as a digital modulation scheme.

13. The method of claim 1, wherein the indication of available bandwidth is generated in circuitry communicatively coupled to the endpoint devices via the power distribution lines by using a channel allocation technique that is based on a plurality of collectors receiving data from respective ones of the endpoint devices while storing the data received from the respective ones of the endpoint devices in a local database, and each of the plurality of collectors including circuitry configured to perform activity based on the data received from the endpoint devices which activity includes transmitting information derived from the data received from the endpoint devices, from at least one of the plurality of collectors.

14. The method of claim 1, wherein the communication plan and the group ID(s) are used for data communication in a power line communication network which uses the power distribution lines.

15. The method of claim 1, wherein the communication plan and the group ID(s) are used for data communication in a power line communication network which uses the power distribution lines, and wherein the indication of available bandwidth is generated in circuitry communicatively coupled to the endpoint devices via the power distribution lines by using a channel allocation technique that is based on a plurality of collectors receiving data from respective ones of the endpoint devices while storing the data received from the respective ones of endpoint devices in a local database, and each of the plurality of collectors includes circuitry configured to perform activity based on the data received from the endpoint devices, which activity includes transmitting information derived from the data received from the endpoint devices, from at least one of the plurality of collectors over a communication network, and further including the step of indicating that power usage is significantly higher in a particular portion of a power line communication network than in other portions of the power line communication network, and in response to an indication of increased power usage in the particular portion of the power line communication network, load-balance data is provided for that particular portion of the power line communication network.

16. The method of claim 1, wherein the indication of available bandwidth is generated in circuitry communicatively coupled to the endpoint devices via the power distribution lines, and further including generating the indication of available bandwidth in the circuitry by using a channel allocation technique that is based on operating characteristics of data communications over the power distribution lines and that is in response to data received from the endpoint devices, and yet further including identifying error rates associated with the endpoint devices and grouping the endpoint devices, in the circuitry, according to the error rates.

17. A circuit-based apparatus for communicating data while conserving bandwidth of communications over power distribution lines carrying alternating current (AC) power, where bandwidth is shared between a plurality of endpoint devices that are configured to provide utility usage data over the power distribution lines, the apparatus comprising:

a memory circuit including a database having identification numbers respectively and uniquely assigned to each of the plurality of endpoint devices;

an upstream circuit configured and arranged to access and use the identification numbers in the database by

identifying a group of endpoint devices, from the plurality of endpoint devices, that are targeted for changes to stored configuration data;

developing a communication plan by selecting between group identifications (IDs) for subsets of the plurality of endpoint devices, the subsets of the plurality of endpoint devices including less than all the plurality of endpoint devices;

communicating, over the power distribution lines, a configuration request according to the communication plan and by broadcasting the request to the selected group ID(s);

communicating, over power distribution lines, configuration commands to endpoint devices of one of the subsets using broadcast messages that reduce the data bandwidth over power distribution lines;

communicating, over power distribution lines, utility usage data interspersed with confirmation data indicating that the configuration commands were received by the endpoint devices of said one of the subsets; and

for another of the subsets, adjusting the communication plan in response to the confirmation data and in response, communicating over power distribution lines configuration commands to the endpoint devices of the other of the subsets using broadcast messages, wherein at least some of the configuration commands are broadcast based upon an indication of available bandwidth on the power distribution lines.

18. The circuit-based apparatus of claim 17, wherein the upstream circuit is configured and arranged to include the memory circuit and a processing circuit, the processing circuit being configured and arranged to compare identification information in the configuration request with an identifier and to prevent storing of the data from the configuration request in a memory circuit in response to a failed comparison.

19. The circuit-based apparatus of claim 18, wherein the processing circuit is configured and arranged to detect the absence of a group identifier in the configuration request before preventing the storing of the data.

20. The circuit-based apparatus of claim 18, wherein the upstream circuit further includes a transceiver circuit and wherein the processing circuit is configured and arranged to send a configuration confirmation using the transceiver circuit.

21. The circuit-based apparatus of claim 17, further including circuitry communicatively coupled to the endpoint devices via the power distribution lines, and wherein the indication of available bandwidth is generated in the circuitry communicatively coupled to the endpoint devices via the power distribution lines.

22. The circuit-based apparatus of claim 17, further including circuitry communicatively coupled to the endpoint devices via the power distribution lines, and wherein the indication of available bandwidth is generated in said circuitry communicatively coupled to the endpoint devices, and wherein said circuitry is configured and arranged to transmit to the endpoint devices data that indicates an allocation of available bandwidth for each of the endpoint devices, and to determine an allocation of available bandwidth for each of the endpoint devices by using a channel allocation technique.

23. The circuit-based apparatus of claim 22, wherein said circuitry is further configured and arranged to perform activity based on data received from the endpoint devices which activity includes transmitting information derived from the data received from the endpoint devices, from at least one of a plurality of collectors over a communication network.