Utility load control management communications protocol

• US 7,702,424 B2
• Filed: 10/30/2007
• Issued: 04/20/2010
• Est. Priority Date: 08/20/2003
• Status: Expired due to Fees

• Current Assignee: Cannon Technologies, Inc. (Eaton Corporation PLC.)
• Original Assignee: Cannon Technologies, Inc. (Eaton Corporation PLC.)
• Inventors: Cox, Robert, Cannon, Joel, Rognli, Roger
• Primary Examiner(s): Shechtman; Sean P
• Application Number:
  US11/978,933
• Publication Number:
  US 20080133065A1
• Time in Patent Office: 903 Days
• Field of Search: 700/9, 700/11, 700/24, 700/276, 700/286, 700/295, 700/296, 702/62, 705/412, 340/539.1
• US Class Current: 700/295
• CPC Class Codes: H04L 12/10 Current supply arrangements
• CPC Class Codes: H04L 12/2818 from a device located outside both the home and the home network access arrangements H04L12/2856; for remote control or remote monitoring of applications H04L67/025; arrangements for transmitting signals characterised by the use of a wireless eletrical link G08C17/00; telephonic communication systems adapted for combination with remote control systems H04M11/007
• CPC Class Codes: H04L 2012/2841 Wireless
• CPC Class Codes: H04L 2012/2843 Mains power line
• CPC Class Codes: H04L 2012/2845 Telephone line
• CPC Class Codes: H04L 2012/285 Generic home appliances, e.g. refrigerators
• CPC Class Codes: H04L 67/125 involving control of end-device applications over a network
• CPC Class Codes: Y04S 40/18 Network protocols supporting networked applications, e.g. including control of end-device applications over a network

Abstract

A load control management protocol, system, and method that address many different customers, individually, in geographic groups, or in other predefined groups to control at least one or more electrical power consuming appliances are disclosed. The computer-implemented protocol provides wired and wireless communication schemes that enable a utility to quickly and efficiently communicate commands and messages to end user devices. Specific electrically powered appliances and certain uses of electricity can therefore be managed by communicating with the controllers of those appliances, providing management of a utility load during peak price and consumption periods to prevent delivery interruptions.

Claims

1. A method for managing a utility load by controlling electrical consumption of electrically powered devices, the method comprising:

selecting at least one target for load control and assigning the at least one target at least one target address;

using a control system of a utility provider to form a single variable length load control message according to a communication protocol, wherein the load control message includes the at least one target address and a plurality of unique concatenated command messages as part of the single variable length load control message, each of the plurality of unique concatenated command messages being selected from the set consisting of a command message having a predetermined message type and a fixed length message defined for the predetermined message type and a command message having a predetermined message type and a variable length message corresponding to values in a command message control flag field defined for the predetermined message type; and

causing the load control message to be transmitted via a communication network to the at least one target for execution of all of the plurality of unique concatenated command messages by the at least one target corresponding to the at least one target address in the load control message.

2. The method of claim 1, wherein the plurality of unique concatenated command messages includes a priority command message.

3. The method of claim 1, wherein causing the load control message to be transmitted via a communication network comprises causing the load control message to be transmitted via a wireless communication network.

4. The method of claim 3, wherein causing the load control message to be transmitted via a wireless communication network comprises causing the load control message to be transmitted via a wireless communication at a radio frequency.

5. The method of claim 1, wherein causing the load control message to be transmitted via a communication network comprises causing the load control message to be transmitted via a wired communication network.

6. The method of claim 5, wherein causing the load control message to be transmitted via a wired communication network comprises causing the load control message to be transmitted via a wired communication network, the wired communication network selected from a group consisting of a power line communication network, a telephone service network and an internet service network.

7. The method of claim 1, further comprising formatting the load control message according to a selected communication interface, the communication interface selected from the group consisting of one-way paging protocols, analog cellular control channel two-way communication protocols, short-message service digital two-way communication protocols, and serial compliant digital network protocols.

8. The method of claim 1, wherein forming a variable length load control message according to a communication protocol comprises forming a variable length load control message according to a binary byte-oriented communication protocol.

9. The method of claim 1, wherein the plurality of unique concatenated command messages are selected from a group consisting of specific load management messages, configuration messages, maintenance messages, data messages, and customizable messages.

10. The method of claim 1, wherein the plurality of unique concatenated command messages are selected from a group consisting of:

frequency synchronize the at least one target device

time synchronize the at least one target device with the control center;

set priority of the plurality of concatenated command messages;

test signal reception of the at least one target device;

initiate control of the at least one target device for a period of time;

cancel control of the at least one target device;

provide under-frequency control of the at least one target device;

provide under-voltage control of the at least one target device;

cycle the at least one target device off for a cycle period;

modify a thermostat temperature set-point of the at least one target device;

set a thermostat limit temperature of the at least one target device;

configure a thermostat state of the at least one target device;

set a thermostat price tier level of the at least one target device;

send data to the at least one target device;

request data from the at least one target device;

log data from the at least one target device;

configure the at least one target device;

perform internal maintenance of the at least one target device;

permanently deactivate the at least one target device;

activate the at least one target device;

temporarily deactivate the at least one target device;

temporarily activate the at least one target device; and

send control information to a capacitor bank controller.

11. The method of claim 1, wherein the at least one target comprises a plurality of end user devices defined as at least one group and the at least one target address comprises at least one group-level address.

12. The method of claim 11, wherein the at least one group comprises at least one load-level group.

13. The method of claim 11, wherein the at least one group comprises at least one geographic area.

14. The method of claim 13, wherein the at least one geographic area is defined by a postal code.

15. The method of claim 13, wherein the geographic area is defined by a service provider identifier.

16. The method of claim 1, wherein the command messages having a predetermined message type and a fixed length message are selected from a group consisting of:

a command message having a hexadecimal message type code 01 and a one-byte length message for frequency synchronizing the at least one target device;

a command message having hexadecimal message type code 03 and a one-byte length message for setting priority of the plurality of concatenated command messages;

a command message having a hexadecimal type code 05 and a one-byte length message for testing signal reception of the at least one target device;

a command message having a hexadecimal type code 0E and a one-byte length message for setting a thermostat price tier level of the at least one target device;

a command message having hexadecimal type code 14 and a five-byte length message for performing internal maintenance of the at least one target device;

a command message having hexadecimal type code 15 and a one-byte message field for permanently deactivating the at least one target device; and

a command message having hexadecimal type code 15 and a one-byte message field for permanently activating the at least one target device.

17. The method of claim 1, wherein the command messages having a predetermined message type and a variable length message are selected from the group consisting of:

a command message having a hexadecimal type code 02 and a variable-length message for time synchronizing the at least one target device with a control center;

a command message having a hexadecimal type code 08 and a variable-length message for initiating control of the at least one target device for a period of time;

a command message having a hexadecimal type code 09 and a variable-length message for cancelling control of the at least one target device;

a command message having a hexadecimal type code 0A and a variable-length message for cycling the at least one target device off for a cycle period;

a command message having a hexadecimal type code 0B and a variable-length message for modifying a thermostat temperature set-point of the at least one target device;

a command message having a hexadecimal type code 0C and a variable-length message for cycling the at least one target device off for a cycle period depending on temperature limits;

a command message having a hexadecimal type code 0D and a variable-length message for configuring a thermostat state of the at least one target device;

a command message having a hexadecimal type code 10 and a variable-length message for sending configuration data to the at least one target device;

a command message having a hexadecimal type code 16 and a variable-length message for temporarily deactivating the at least one target device;

a command message having a hexadecimal type code 1D and a variable-length message for sending a block of data to the at least one target device;

a command message having a hexadecimal type code 20 and a variable-length message for sending control information to a capacitor bank controller;

a command message having a hexadecimal type code 2C and a variable-length message for requesting a reply from the at least one target device; and

a command message having a hexadecimal type code 2D and a variable-length message for requesting a reply receipt from the at least one target device.

18. A method for managing electrical consumption of electrically powered device in communication with a control system of a utility provider, the method comprising:

receiving at a controller of an electrically powered device in communication with a control system of a utility provider a single variable length load control message, the load control message including an address of the controller and a plurality of unique concatenated command messages as part of the single variable length load control message, each of the plurality of unique concatenated command messages being selected from the set consisting of a command message having a predetermined message type and a fixed length message defined for the predetermined message type and a command message having a predetermined message type and a variable length message corresponding to values in a command message control flag field defined for the predetermined message type;

decoding the load control message into the plurality of unique command messages; and

controlling the device with the controller so as to execute of all of the plurality of unique command messages, thereby managing consumption of electricity of the electrically powered device.

19. The method of claim 18, further comprising transmitting data from the controller to the utility.

20. The method of claim 18, wherein the plurality of unique concatenated command messages includes a priority command message.

21. The method of claim 18, wherein receiving at a controller a single variable length load control message comprises receiving at a controller a single variable length load control message over a wireless network.

22. The method of claim 21, wherein receiving at a controller a single variable length load control message over a wireless network comprises receiving at a controller a single variable length load control message over a wireless network operating at a radio frequency.

23. The method of claim 18, wherein receiving at a controller a single variable length load control message comprises receiving at a controller a single variable length load control message over a wired network.

24. The method of claim 19, wherein receiving at a controller a single variable length load control message over a wired network comprises receiving at a controller a single variable length load control message over a wired network, the wired network selected from a group consisting of a power line communication network, a telephone service network and an internet service network.

25. The method of claim 18, wherein the variable length load control message is formatted according to a selected communication interface, the communication interface selected from the group consisting of one-way paging protocols, analog cellular control channel two-way communication protocols, short-message service digital two-way communication protocols, and serial compliant digital network protocols.

26. The method of claim 18, wherein the plurality of unique concatenated command messages are selected from a group consisting of specific load management messages, configuration messages, maintenance messages, data messages, and customizable messages.

27. The method of claim 18, wherein the plurality of unique concatenated command messages are selected from a group consisting of:

frequency synchronize the at least one target device time synchronize the at least one target device with the control center;

set priority of the plurality of concatenated command messages;

test signal reception of the at least one target device;

initiate control of the at least one target device for a period of time;

cancel control of the at least one target device;

provide under-frequency control of the at least one target device;

provide under-voltage control of the at least one target device;

cycle the at least one target device off for a cycle period;

modify a thermostat temperature set-point of the at least one target device;

set a thermostat limit temperature of the at least one target device;

configure a thermostat state of the at least one target device;

set a thermostat price tier level of the at least one target device;

send data to the at least one target device;

request data from the at least one target device;

log data from the at least one target device;

configure the at least one target device;

perform internal maintenance of the at least one target device;

permanently deactivate the at least one target device;

activate the at least one target device;

temporarily deactivate the at least one target device;

temporarily activate the at least one target device; and

send control information to a capacitor bank controller.

28. The method of claim 18, wherein the command messages having a predetermined message type and a fixed length message are selected from a group consisting of:

a command message having a hexadecimal message type code 01 and a one-byte length message for frequency synchronizing the at least one target device;

a command message having hexadecimal message type code 03 and a one-byte length message for setting priority of the plurality of concatenated command messages;

a command message having a hexadecimal type code 05 and a one-byte length message for testing signal reception of the at least one target device;

a command message having a hexadecimal type code 0E and a one-byte length message for setting a thermostat price tier level of the at least one target device;

a command message having hexadecimal type code 14 and a five-byte length message for performing internal maintenance of the at least one target device;

a command message having hexadecimal type code 15 and a one-byte message field for permanently deactivating the at least one target device; and

a command message having hexadecimal type code 15 and a one-byte message field for permanently activating the at least one target device.

29. The method of claim 18, wherein the command messages having a predetermined message type and a variable length message are selected from the group consisting of:

a command message having a hexadecimal type code 02 and a variable-length message for time synchronizing the at least one target device with a control center;

a command message having a hexadecimal type code 08 and a variable-length message for initiating control of the at least one target device for a period of time;

a command message having a hexadecimal type code 09 and a variable-length message for cancelling control of the at least one target device;

a command message having a hexadecimal type code 0A and a variable-length message for cycling the at least one target device off for a cycle period;

a command message having a hexadecimal type code 0B and a variable-length message for modifying a thermostat temperature set-point of the at least one target device;

a command message having a hexadecimal type code 0C and a variable-length message for cycling the at least one target device off for a cycle period depending on temperature limits;

a command message having a hexadecimal type code 0D and a variable-length message for configuring a thermostat state of the at least one target device;

a command message having a hexadecimal type code 10 and a variable-length message for sending configuration data to the at least one target device;

a command message having a hexadecimal type code 16 and a variable-length message for temporarily deactivating the at least one target device;

a command message having a hexadecimal type code 1D and a variable-length message for sending a block of data to the at least one target device;

a command message having a hexadecimal type code 20 and a variable-length message for sending control information to a capacitor bank controller;

a command message having a hexadecimal type code 2C and a variable-length message for requesting a reply from the at least one target device; and

a command message having a hexadecimal type code 2D and a variable-length message for requesting a reply receipt from the at least one target device.

30. A method, comprising:

providing a controller for controlling electrical consumption of an electrically powered device; and

providing instructions on operating the controller in accordance with a communication protocol, wherein the instructions include the steps of;

receiving at the controller in communication with a control system of a utility provider a single variable length load control message, the load control message including at least a plurality of unique concatenated command messages as part of the single variable length load control message, each of the plurality of unique concatenated command messages being selected from the set consisting of a command message having a predetermined message type and a fixed length message defined for the predetermined message type and a command message having a predetermined message type and a variable length message corresponding to values in a command message control flag field defined for the predetermined message type;

decoding the load control message into the plurality of command messages; and

controlling the device with the controller so as to execute of all of the plurality of unique command messages, thereby managing consumption of electricity of the electrically powered device.

31. The method of claim 30, wherein the command messages having a predetermined message type and a fixed length message are selected from a group consisting of:

a command message having a hexadecimal message type code 01 and a one-byte length message for frequency synchronizing the at least one target device;

a command message having hexadecimal message type code 03 and a one-byte length message for setting priority of the plurality of concatenated command messages;

a command message having a hexadecimal type code 05 and a one-byte length message for testing signal reception of the at least one target device;

a command message having a hexadecimal type code 0E and a one-byte length message for setting a thermostat price tier level of the at least one target device;

a command message having hexadecimal type code 14 and a five-byte length message for performing internal maintenance of the at least one target device;

a command message having hexadecimal type code 15 and a one-byte message field for permanently deactivating the at least one target device; and

a command message having hexadecimal type code 15 and a one-byte message field for permanently activating the at least one target device.

32. The method of claim 30, wherein the command messages having a predetermined message type and a variable length message are selected from the group consisting of:

a command message having a hexadecimal type code 02 and a variable-length message for time synchronizing the at least one target device with a control center;

a command message having a hexadecimal type code 08 and a variable-length message for initiating control of the at least one target device for a period of time;

a command message having a hexadecimal type code 09 and a variable-length message for cancelling control of the at least one target device;

a command message having a hexadecimal type code 0A and a variable-length message for cycling the at least one target device off for a cycle period;

a command message having a hexadecimal type code 0B and a variable-length message for modifying a thermostat temperature set-point of the at least one target device;

a command message having a hexadecimal type code 0C and a variable-length message for cycling the at least one target device off for a cycle period depending on temperature limits;

a command message having a hexadecimal type code 0D and a variable-length message for configuring a thermostat state of the at least one target device;

a command message having a hexadecimal type code 10 and a variable-length message for sending configuration data to the at least one target device;

a command message having a hexadecimal type code 16 and a variable-length message for temporarily deactivating the at least one target device;

a command message having a hexadecimal type code 1D and a variable-length message for sending a block of data to the at least one target device;

a command message having a hexadecimal type code 20 and a variable-length message for sending control information to a capacitor bank controller;

a command message having a hexadecimal type code 2C and a variable-length message for requesting a reply from the at least one target device; and

a command message having a hexadecimal type code 2D and a variable-length message for requesting a reply receipt from the at least one target device.

33. An apparatus for managing a utility load by controlling electrical consumption of an electrically powered device, comprising:

means for selecting at least one target for load control and for assigning the at least one target at least one target address;

means for forming a variable length load control message, the variable length load control message including;

a start indicator field indicating a start of the variable length load control message;

a variable length address field including a fixed bit-length portion identifying an address level, and a variable bit-length portion identifying a target address corresponding to the at least one electrically powered device;

a plurality of unique concatenated command messages, each of the plurality of unique concatenated command messages being selected from the set consisting of a command message having a predetermined message type field and fixed length message field for a fixed length message defined by the predetermined message type, and a command message having a message type field for a predetermined message type and a variable length message field corresponding to values in a command message control flag field defined for a message type of the message type field; and

a message terminator field indicating a termination of the variable length load control message; and

means for interfacing with a communication network communicatively coupled to the at least one target device, such that the variable length load control message may be transmitted via the communication network to the at least one target device for execution of the plurality of unique command messages.

34. An apparatus for managing a utility load by controlling electrical consumption of an electrically powered device, comprising:

means for receiving a variable length load control message, the variable length load control message including;

a start indicator field indicating a start of the variable length load control message;

a variable length address field including a fixed bit-length portion identifying an address level, and a variable bit-length portion identifying a target address corresponding to the at least one electrically powered device;

a plurality of unique concatenated command messages, each of the plurality of unique concatenated command messages being selected from the set consisting of a command message having a predetermined message type field and fixed length message field for a fixed length message defined by the predetermined message type, and a command message having a message type field for a predetermined message type and a variable length message field corresponding to values in a command message control flag field defined for a message type of the message type field; and

a message terminator field indicating a termination of the variable length load control message;

means for decoding the load control message into the plurality of unique command messages; and

means for controlling the device with the controller so as to execute of all of the plurality of unique command messages, thereby managing consumption of electricity of the electrically powered device.