Turn-on procedure for a load control system

• US 10,609,788 B2
• Filed: 06/19/2019
• Issued: 03/31/2020
• Est. Priority Date: 11/14/2013
• Status: Active Grant

• Current Assignee: Lutron Technology Company LLC
• Original Assignee: Lutron Technology Company LLC
• Inventors: Knauss, Matthew
• Primary Examiner(s): Tran, Thuy V
• Application Number:
  US16/446,593
• Publication Number:
  US 20190306955A1
• Time in Patent Office: 286 Days
• Field of Search: 315291, 315308, 340541, 340565
• CPC Class Codes: H05B 47/115 by determining the presence or movement of objects or living beings
• CPC Class Codes: H05B 47/13 by using passive infrared detectors
• CPC Class Codes: H05B 47/175 by remote control
• CPC Class Codes: H05B 47/19 via wireless transmission
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

A load regulation device is adapted to control an electrical load. The load regulation device may be in a low power state, a ready state, and/or an on state. The low power state is characterized by the electrical load being unenergized. The ready state is characterized by a load control device and/or the load regulation device using more power than the low power state and the electrical load being unenergized. The on state is characterized by the electrical load being energized. The load regulation device is configured to receive an indication of a user'"'"'s presence when the load regulation device is in the low power state. The load regulation device is configured to change from the low power state to the ready state in response to receiving the indication. The load regulation device is configured to wait in the ready state for a change state instruction.

Claims

1. A load regulation device for controlling an electrical load, the load regulation device comprising:

a load regulation circuit configured to control the electrical load; and

a control circuit configured to control the load regulation circuit to control an amount of power delivered to the electrical load;

wherein the control circuit is configured to;

control the load regulation circuit to not energize the electrical load;

receive an indication of a user'"'"'s presence;

in response to receiving the indication, perform at least one control function to prepare for energizing the electrical load while the electrical load remains unenergized;

wait for a change state instruction;

stop or reverse the performance of the at least one control function if the change state instruction is not received within a first predetermined period of time; and

control the load regulation circuit to energize the electrical load in response to receiving the change state instruction within the first predetermined period of time.

2. The load regulation device of claim 1, wherein the at least one control function comprises one or more of the following:

rendering conductive a controllably conductive device of a load control device, energizing a processor of the load regulation device, charging a power supply of the load regulation device, initializing a communication channel between a load control device and the load regulation device, or preheating one or more filaments of the electrical load.

3. The load regulation device of claim 1, wherein the control circuit is further configured to control the load regulation circuit to stop energizing the electrical load in response to receiving an actuation of an actuator or in response to receiving an indication of a lack of the user'"'"'s presence in a vicinity of the electrical load for a second predetermined period of time.

4. The load regulation device of claim 3, wherein at least one of the first predetermined period of time or the second predetermined period of time is based on at least one of the time of day or the day of the week.

5. The load regulation device of claim 3, wherein the control circuit is configured to receive one or more signals from an external device, and receive an indication of the actuation of the actuator via the one or more signals received from the external device.

6. The load regulation device of claim 1, further comprising a sensor configured to detect the presence of the user, wherein the control circuit is configured to receive the indication of the user'"'"'s presence from the sensor.

7. The load regulation device of claim 6, wherein the control circuit is configured to receive the change state instruction from the sensor.

8. The load regulation device of claim 6, wherein the control circuit is configured to receive the change state instruction from an external device.

9. The load regulation device of claim 8, wherein the external device comprises an actuator configured to actuate the electrical load and the change state instruction is received in response to an actuation of the actuator.

10. The load regulation device of claim 1, further comprising a receiver configured to receive one or more signals from an external device.

11. The load regulation device of claim 10, wherein the control circuit is configured to receive the indication of the user'"'"'s presence via the one or more signals received from the external device.

12. The load regulation device of claim 11, wherein the control circuit is configured to receive the change state instruction via the one or more signals received from the external device.

13. The load regulation device of claim 10, wherein the external device comprises a sensor.

14. The load regulation device of claim 10, wherein the one or more signals comprise at least one digital message.

15. The load regulation device of claim 10, wherein the control circuit is configured to receive the change state instruction from a second external device.

16. The load regulation device of claim 15, wherein the second external device comprises an actuator for controlling the electrical load and the change state instruction is received in response to an actuation of the actuator.

17. The load regulation device of claim 1, wherein the electrical load comprises a lighting load or a motorized window treatment.

18. A method implemented by a load regulation device for controlling an electrical load, the method comprising:

not energizing the electrical load;

receiving an indication of a user'"'"'s presence;

in response to receiving the indication, performing at least one control function to prepare for energizing the electrical load while the electrical load remains unenergized;

waiting for a change state instruction;

stopping or reversing the performance of the at least one control function if the change state instruction is not received within a first predetermined period of time; and

controlling a load regulation circuit to energize the electrical load in response to receiving the change state instruction within the first predetermined period of time.

19. The method of claim 18, further comprising:

controlling the load regulation circuit to stop energizing the electrical load in response to receiving an actuation of an actuator or in response to receiving an indication of a lack of the user'"'"'s presence in a vicinity of the electrical load for a second predetermined period of time.

20. The method of claim 18, wherein the at least one control function comprises one or more of the following:

rendering conductive a controllably conductive device of a load control device, energizing a processor of the load regulation device, charging a power supply of the load regulation device, initializing a communication channel between a load control device and the load regulation device, or preheating one or more filaments of the electrical load.