Operational coordination of load control devices for control of electrical loads

• US 10,019,047 B2
• Filed: 03/11/2013
• Issued: 07/10/2018
• Est. Priority Date: 12/21/2012
• Status: Active Grant

• Current Assignee: Lutron Technology Company LLC
• Original Assignee: Lutron Electronics Company Incorporated (Lutron Electronics)
• Inventors: Bull, John
• Primary Examiner(s): Buhr, M. N. Von
• Application Number:
  US13/793,870
• Publication Number:
  US 20140180487A1
• Time in Patent Office: 1,947 Days
• Field of Search: 700295-296
• CPC Class Codes: G06F 1/26 Power supply means, e.g. regulation thereof for memories G11C
• CPC Class Codes: H04L 12/12 Arrangements for remote connection or disconnection of substations or of equipment thereof
• CPC Class Codes: H04L 12/282 based on user interaction within the home receiver circuitry for displaying additional information being controlled by a remote control apparatus H04N21/42204
• CPC Class Codes: H04L 2012/2841 Wireless
• CPC Class Codes: H04L 2012/285 Generic home appliances, e.g. refrigerators

Abstract

A load control device for controlling the power delivered from an AC power source to an electrical load is able to receive radio-frequency (RF) signals from a Wi-Fi-enabled device, such as a smart phone, via a wireless local area network. The load control device comprises a controllably conductive device, a controller for rendering the controllably conductive device conductive and non-conductive, and a Wi-Fi module operable to receive the RF signals directly from the wireless network. The controller may cooperate with one or more other devices to synchronize in time the adjustments made by one or more load control devices that are operable to control the power delivered to one or more electrical loads. The one or more load control devices may also cooperate with one or more Internet based information providers to provide preconfigured and condition based adjustments of the one or more electrical loads.

Claims

1. A device configured to control an electrical load, the device comprising:

a controller;

a memory configured to store a scene, wherein the scene comprises an intensity setting for the electrical load, and wherein the memory is communicatively coupled with the controller;

a first wireless communication circuit configured to communicate on a first wireless communication network via a first protocol, the first wireless communication circuit communicatively coupled with the controller; and

a second communication circuit configured to communicate on a second communication network via a second protocol, the second communication circuit communicatively coupled with the controller, and wherein the second communication network is different from the first wireless communication network;

the controller configured to;

receive a first signal from the first wireless communication network via the first wireless communication circuit and via the first protocol, the first signal comprising a command to set the electrical load to the scene;

to set the electrical load to the scene;

in response to receiving the first signal, wait to receive a second signal from the second communication network in order to implement the scene;

subsequent to receiving the first signal, receive the second signal from the second communication network via the second communication circuit and via the second protocol; and

in response to receiving the second signal, implement the scene by controlling the power delivered to the electrical load.

2. The device of claim 1, wherein the first protocol comprises a wireless Internet Protocol (IP) based protocol.

3. The device of claim 2, wherein the second communication network comprises a wireless network, and the second protocol comprises a proprietary radio-frequency (RF) protocol.

4. The device of claim 2, wherein the second communication network comprises a wireless network and the second protocol comprises a wireless Internet Protocol (IP) based protocol.

5. The device of claim 1, wherein the controller is further configured to transmit an acknowledgement message in response to receiving the first signal from the first wireless communication network, and wherein a source of the second signal waits to receive the acknowledgement message from the device before transmitting the second signal on the second communication network.

6. The device of claim 5, wherein to transmit the acknowledgement message comprises to transmit the acknowledgement message on the second communication network in response to receiving the first signal from the first wireless communication network.

7. The device of claim 1, wherein the second signal is received as a user datagram protocol multicast message.

8. The device of claim 1, wherein the second communication circuit is configured to communicate via the second protocol on one or more conductors configured to provide line source power to the device.

9. The device of claim 8, wherein the second protocol comprises a power line communication protocol.

10. The device of claim 1, wherein the second communication circuit is configured to communicate via at least one energy pulse on one or more conductors configured to provide line source power to the device.

11. The device of claim 1, wherein a source of the first signal is different from a source of the second signal.

12. The device of claim 1, wherein the controller is further configured to:

subsequent to implementing the scene, receive another command to control the power delivered to the electrical load;

determine that a time interval between implementing the scene and receiving the another command is less than a predetermined amount of time; and

based at least in part on determining that the time interval between implementing the scene and receiving the another command is less than the predetermined amount of time, not control the power delivered to the electrical load as instructed by the another command.

13. A method performed by a device configured to control an electrical load, the device comprising a controller, a first wireless communication circuit, a second communication circuit, and a memory, the controller communicatively coupled with first wireless communication circuit, the second communication circuit, and the memory, and wherein the memory has stored thereon a scene, wherein the scene comprises an intensity setting for the electrical load, the method comprising:

receiving by the controller a first signal from a first wireless communication network via the first wireless communication circuit and via a first protocol, the first signal comprising a command to set the electrical load to the scene;

in response to receiving the first signal, waiting by the controller to receive a second signal from a second communication network in order to implement the scene, wherein the second communication network is different from the first wireless communication network;

subsequent to receiving the first signal, receiving by the controller the second signal from the second communication network via the second communication circuit and via a second protocol; and

in response to receiving the second signal, implementing by the controller the scene by controlling the power delivered to the electrical load.

14. The method of claim 13, wherein the first protocol comprises a wireless Internet Protocol (IP) based protocol.

15. The method of claim 14, wherein the second communication network comprises a wireless network, and the second protocol comprises a proprietary radio-frequency (RF) protocol.

16. The method of claim 14, wherein the second communication network comprises a wireless network and the second protocol comprises a wireless Internet Protocol (IP) based protocol.

17. The method of claim 13, further comprising transmitting an acknowledgement message in response to receiving the first signal from the first wireless communication network, wherein a source of the second signal waits to receive the acknowledgement message from the device before transmitting the second signal on the second communication network.

18. The method of claim 17,

wherein transmitting the acknowledge message comprises transmitting the acknowledgement message on the second communication network in response to receiving the first signal from the first wireless communication network.

19. The method of claim 13, wherein the second signal is received as a user datagram protocol multicast message.

20. The method of claim 13, wherein the

second communication circuit is configured to communicate via the second protocol on one or more conductors providing line source power to the device.

21. The method of claim 20, wherein the second protocol comprises a power line communication protocol.

22. The method of claim 13, wherein the second communication circuit is configured to communicate via at least one energy pulse on one or more conductors providing line source power to the device.

23. The method of claim 13, wherein a source of the first signal is different from a source of the second signal.

24. The method of claim 13, further comprising:

subsequent to implementing the scene, receiving another command to control the power delivered to the electrical load;

determining that a time interval between implementing the scene and receiving the another command is less than a predetermined amount of time; and

based at least in part on determining that the time interval between implementing the scene and receiving the another command is less than the predetermined amount of time, not controlling the power delivered to the electrical load as instructed by the another command.

25. A method for controlling power delivered to a plurality of electrical loads, the method comprising:

receiving from a first communication network via a first communication circuit a command to adjust a respective amount of power to be delivered to each of the plurality of electrical loads, the command comprising the respective amount of power adjustment, wherein each of a plurality of load control devices is configured to adjust for at least one of the plurality of electrical loads the respective amount of power to be delivered to the electrical load, and wherein each of the plurality of load control devices is further configured to receive the command and to wait to receive a synchronization message in order to adjust the respective amount of power delivered to the plurality of electrical loads; and

transmitting onto a second communication network via a second communication circuit one or more synchronization messages to the plurality of load control devices, wherein the second communication network is different from the first wireless communication network, and

wherein the plurality of load control devices are further configured to adjust the respective amount of power delivered to the plurality of electrical loads in response to receiving the one or more synchronization messages.

26. The method of claim 25, further comprising:

subsequent to receiving the command, waiting to receive an acknowledgement message from each of the plurality of load control devices before transmitting the one or more synchronization messages; and

receiving an acknowledge message from each of the plurality of load control devices;

wherein transmitting the one or more synchronization messages to the plurality of load control devices comprises transmitting the one or more synchronization messages in response to receiving the acknowledge messages from each of the plurality of load control devices.

27. The method of claim 26, wherein a source of the command is different from a source of the one or more synchronization messages.

28. The method of claim 25, wherein the second communication circuit is configured to transmit the synchronization message on one or more conductors providing line source power to the plurality of load control devices.

29. The method of claim 25, wherein the second communication circuit is configured to communicate via a power line communication protocol, and wherein the synchronization message is transmitted via the second communication circuit and via the power line communication protocol.

30. The method of claim 25, wherein the first communication circuit comprises a wireless communication circuit and the first communication circuit is configured to communicate via a wireless Internet Protocol (IP) based protocol.

31. The method of claim 30, wherein the wireless IP based protocol comprises a Wi-Fi protocol.

32. The method of claim 30, wherein the second communication circuit comprises a wireless communication circuit and the second communication circuit is configured to communicate via a proprietary radio-frequency (RF) protocol.

33. The method of claim 30, wherein the second communication circuit comprises a wireless communication circuit and the second communication circuit is configured to communicate via a wireless Internet Protocol (IP) based protocol.

34. The method of claim 25, wherein transmitting the synchronization message comprises transmitting the synchronization message as a multicast message receivable by each of the plurality of load control devices.

35. An apparatus, the apparatus configured to communicate with a plurality of load control devices, each of the plurality of load control devices operable to control power delivered to at least one of a plurality of electrical loads, the apparatus comprising:

a controller;

a first wireless communication circuit configured to communicate on a first wireless communication network via a first protocol, the first wireless communication circuit communicatively coupled with the controller; and

a second communication circuit configured to communicate on a second communication network via a second protocol, the second communication circuit communicatively coupled with the controller, and wherein the second communication network is different from the first wireless communication network,

the controller configured to;

receive a first signal from the first wireless communication network via the first wireless communication circuit and via the first protocol, the first signal comprising a power control command that comprises a respective power adjustment for one or more of the plurality of load control devices to control the power delivered to one or more of the plurality of electrical loads, wherein the one or more of the plurality of load control devices are configured to receive the first signal and to wait to receive a second signal in order to implement the respective power adjustment;

identify the one or more of the plurality of load control devices for which the power control command comprises the respective power adjustment; and

transmit onto the second communication network one or more second signals to the identified one or more of the plurality of load control devices via the second communication circuit and via the second protocol,

wherein the identified one or more of the plurality of load control devices are further configured to implement the respective power adjustment in response to receiving the one or more second signals.

36. The apparatus of claim 35, wherein the first wireless communication circuit comprises a first radio configured to communicate via the first protocol.

37. The apparatus of claim 36, wherein the first protocol comprises a wireless Internet Protocol (IP) based protocol.

38. The apparatus of claim 35, wherein the second protocol comprises a reliable radio-frequency (RF) protocol.

39. The apparatus of claim 35, wherein the apparatus is a load control device and the power control command comprises a respective power adjustment for an electrical load of the apparatus.

40. The apparatus of claim 35, wherein the controller is further configured to:

subsequent to receiving the first signal, wait to receive an acknowledgement message from the identified one or more of the plurality of load control devices before transmitting the one or more second signals; and

receive an acknowledge message from the identified one or more of the plurality of load control devices;

wherein to transmit the one or more second signals to the identified one or more of the plurality of load control devices comprises to transmit the one or more second signals in response to receiving the acknowledge messages from the identified one or more of the plurality of load control devices.

41. The apparatus of claim 40, wherein the apparatus does not transmit the first signal to the one or more of the plurality of load control devices.

42. The apparatus of claim 35, wherein to transmit the one or more second signals comprises to transmit the one or more second signals as a multicast message receivable by the identified one or more of the plurality of load control devices.