BI-DIRECTIONAL COMMUNICATIONS ON AN ELECTRICAL SECONDARY NETWORKED DISTRIBUTION SYSTEM

• US 20160164287A1
• Filed: 12/03/2015
• Published: 06/09/2016
• Est. Priority Date: 12/03/2014
• Status: Abandoned Application

• Current Assignee: Dominion Enterprises (Landmark Media Enterprises LLC), TRC Companies Incorporated
• Original Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Inventors: Bernheim, Henrik F.
• Application Number:
  US14/958,385
• Publication Number:
  US 20160164287A1
• Time in Patent Office: Days
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: H02J 3/00 Circuit arrangements for ac mains or ac distribution networks
• CPC Class Codes: H04B 3/54 Systems for transmission via power distribution lines
• CPC Class Codes: H04L 12/6418 Hybrid transport

Abstract

Mechanisms for bi-directional communications on an electrical secondary networked distribution system are disclosed. A first edge node control device (ENCD) receives, via an off-grid communications interface, a message. The first ENCD is communicatively coupled to the secondary networked distribution system, and the secondary networked distribution system provides electricity to a plurality of consuming endpoints. The method further includes retransmitting, in response to receipt of the message, by the first ENCD on the secondary networked distribution system, the message to a plurality of internal node control devices communicatively coupled to the secondary networked distribution system at a plurality of locations.

Claims

1. A method for communicating on a secondary networked distribution system, comprising:

receiving, by a first edge node control device (ENCD) via an off-grid communications interface, a message, the first ENCD communicatively coupled to the secondary networked distribution system, the secondary networked distribution system providing electricity to a plurality of consuming endpoints; and

in response to receiving the message, retransmitting, by the first ENCD on the secondary networked distribution system, the message to a plurality of internal node control devices communicatively coupled to the secondary networked distribution system at a plurality of locations.

2. The method of claim 1, wherein the first ENCD is located at a grid node, the grid node housing an electrical control or monitoring (ECOM) device coupled to the secondary networked distribution system, and wherein the first ENCD is communicatively coupled to the ECOM device and is configured to, in response to receiving the message, send a signal to the ECOM device to cause the ECOM device to alter or monitor an electrical characteristic of the secondary networked distribution system.

3. The method of claim 2, wherein the ECOM device comprises one of a transformer, a switch, a fuse, or a monitoring device.

4. The method of claim 1, wherein receiving, by the first ENCD via the off-grid communications interface, the message, further comprises:

receiving, by a plurality of ENCDs, including the first ENCD, the message substantially concurrently; and

wherein retransmitting, by the first ENCD on the secondary networked distribution system, the message to the plurality of internal node control devices communicatively coupled to the secondary networked distribution system at the plurality of locations further comprises retransmitting, by the plurality of ENCDs on the secondary networked distribution system, the message to the plurality of internal node control devices communicatively coupled to the secondary networked distribution system at the plurality of locations.

5. The method of claim 1, further comprising determining that the plurality of internal node control devices received the message.

6. The method of claim 5, wherein determining that the plurality of internal node control devices received the message comprises receiving a plurality of acknowledgement messages via the secondary networked distribution system, each acknowledgement message being sent by one of the plurality of internal node control devices.

7. The method of claim 6, wherein determining that the plurality of internal node control devices received the message further comprises determining that a negative acknowledgement message has not been received within a predetermined timeframe.

8. The method of claim 1, further comprising receiving, by an internal node control device, the message, and retransmitting the message on the secondary networked distribution system.

9. The method of claim 1, further comprising receiving, by an internal node control device, the message, and transmitting, on the secondary distribution network system an acknowledgement message indicating the internal node control device received the message.

10. The method of claim 1, further comprising:

receiving, by an internal node control device, the message;

determining that the message is directed to the internal node control device;

determining that the message identifies an action to be performed by the internal node control device; and

performing the action.

11. The method of claim 10, further comprising:

determining that the message identifies a future time when the action is to be performed;

waiting until the future time; and

performing the action.

12. The method of claim 10, further comprising:

determining that the message identifies a future event that will trigger the action to be performed;

determining that the future event has occurred; and

performing the action.

13. The method of claim 12, wherein the future event comprises a presence of a tone on the secondary networked distribution system, and further comprising:

listening to the secondary networked distribution system for the presence of the tone;

detecting the presence of the tone on the secondary networked distribution system; and

in response to detecting the presence of the tone on the secondary networked distribution system, performing the action.

14. The method of claim 1, wherein the message is addressed to a first internal node control device of the plurality of internal node control devices and a second internal node control device of the plurality of internal node control devices, and the message identifies an action to be performed at a future time concurrently by the first internal node control device and the second internal node control device.

15. A system for communicating on a secondary networked distribution system, comprising:

an edge node control device comprising;

an on-grid communications interface configured to be communicatively coupled to the secondary networked distribution system, the secondary networked distribution system configured to provide electricity to a plurality of consuming endpoints;

an off-grid communications interface configured to communicate via an off-grid communications technology; and

a first processing device communicatively coupled to the on-grid communications interface and the off-grid communications interface, and configured to;

receive, via the off-grid communications interface, a message; and

in response to receiving the message, retransmit on the secondary networked distribution system the message to a plurality of internal node control devices communicatively coupled to the secondary networked distribution system at a plurality of locations.

16. The system of claim 15, wherein the edge node control device further comprises:

a communications interface configured to communicate with an electrical control or monitoring (ECOM) device configured to be coupled to the second networked distribution system; and

wherein the first processing device is communicatively coupled to the communications interface and is further configured to;

in response receiving the message, send a signal to the ECOM device to cause the ECOM device to alter or monitor an electrical characteristic of the secondary networked distribution system.

17. The system of claim 15 further comprising a plurality of edge node control devices, wherein each edge node control device of the plurality of edge node control devices is configured to:

receive the message substantially concurrently; and

retransmit, on the secondary networked distribution system, the message to the plurality of internal node control devices.

18. The system of claim 15, further comprising:

a computing device comprising;

a communications interface; and

a second processing device communicatively coupled to the communications interface and configured to;

generate the message;

transmit the message to the edge node control device; and

determine that the plurality of internal node control devices received the message.

19. The system of claim 18, wherein to determine that the plurality of internal node control devices received the message the second processing device is further configured to receive a plurality of acknowledgement messages via the secondary networked distribution system, each acknowledgement message being sent by one of the plurality of internal node control devices.