Lighting system operation management method

• US 9,326,359 B2
• Filed: 09/02/2015
• Issued: 04/26/2016
• Est. Priority Date: 09/02/2014
• Status: Active Grant

• Current Assignee: Feit Electric Company Incorporated
• Original Assignee: LiFi Labs, Inc. (Buddy Technologies Ltd.)
• Inventors: Bosua, Philip
• Primary Examiner(s): VU, JIMMY T
• Application Number:
  US14/843,855
• Publication Number:
  US 20160066393A1
• Time in Patent Office: 237 Days
• Field of Search: 315/209.R, 315291-297, 315/307, 315/308, 315/312
• US Class Current: 1/1
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 47/175 by remote control

Abstract

A method for automatic lighting system control, including: receiving a first light parameter value selection from a user account associated with the lighting system; controlling lighting elements of the lighting system to meet the first light parameter value; automatically determining a second light parameter value based on the first light parameter value and a user perception profile relating light parameter values with perceived light output values; and incrementally adjusting lighting element operation to meet the second light parameter value over a predetermined time period.

Claims

1. A method for automatic lighting system control, the lighting system including a lighting element, the method comprising:

receiving a first light intensity value from a user account associated with an identifier for the lighting system;

determining a first lighting element control instruction based on the first light intensity value;

controlling the lighting element according to the first lighting element control instruction;

determining lighting system association with a power reduction mode;

within a predetermined time period from first light intensity value receipt, automatically determining a second light intensity value based on the lighting system mode and first light intensity value, the second light intensity value lower than the first light intensity value; and

incrementally adjusting lighting element operation to meet the second light parameter value over a second predetermined time period.

2. The method of claim 1, wherein the second light intensity value is selected based on a user perception profile, the user perception profile relating light intensity values with perceived light output values.

3. The method of claim 2, wherein the user perception profile is for the user account, the method further comprising:

receiving a third light intensity value from the user account, wherein the third light intensity value is between the first and second light intensity values after the first time;

determining a third lighting element control instruction based on the third light intensity value;

controlling the lighting element according to the third lighting element control instruction; and

updating the user perception profile based on the third light intensity value.

4. The method of claim 2, wherein the lighting element operation is incrementally adjusted in response to determination that a user device associated with the user account is located within a predetermined physical region.

5. The method of claim 4, wherein the second light parameter value comprises a second light intensity value, the method further comprising:

determining second user device location within the predetermined physical region, the second user device associated with a second user account;

automatically determining a third light intensity value based on the first light intensity value and a second user perception profile associated with the second user account; and

operating the lighting system based on the second and third light intensity values.

6. The method of claim 5, wherein the lighting system further comprises a second lighting element, the first and second lighting elements mounted to a first and second radial position on the lighting system, wherein operating the lighting system based on the second and third light intensity values comprises:

incrementally adjusting the first lighting element operation to meet the second light intensity value over the predetermined time period; and

incrementally adjusting second lighting element operation to meet the third light intensity value over a second predetermined time period.

7. The method of claim 1, wherein the lighting element is controlled according to the first lighting element control instruction at a first time, and wherein incrementally adjusting lighting element operation to meet the second light parameter value over a second predetermined time period comprises:

determining a plurality of adjustment times after the first time;

determining an intermediary light intensity value for each adjustment time, wherein each intermediary light intensity value is between the first and second light intensity values;

determining an intermediary lighting element control instruction for each intermediary light intensity value; and

at each adjustment time, controlling the lighting element according to the respective lighting element control instruction.

8. The method of claim 7, wherein:

the first lighting element control instruction comprises a first current magnitude corresponding to the first light intensity value; and

the intermediary lighting element control instruction comprises an intermediary current magnitude, different from the first current magnitude, corresponding to the intermediary light intensity value.

9. The method of claim 1, wherein the first light intensity value corresponds to a first perceived light output value, wherein determining the second light intensity value based on the first light intensity value comprises:

determining a second perceived light output value based on the first perceived light output value; and

selecting a light intensity value corresponding to the second perceived light output value as the second light intensity value, based on a user perception profile relating light intensity values with perceived light output values.

10. A method for automatic lighting system control, comprising:

receiving a first light parameter value selection from a user account associated with the lighting system;

controlling lighting elements of the lighting system to meet the first light parameter value;

automatically determining a second light parameter value based on the first light parameter value and a user perception profile relating light parameter values with perceived light output values; and

incrementally adjusting lighting element operation to meet the second light parameter value over a predetermined time period.

11. The method of claim 10, wherein the user perception profile relates luminous flux with perceived luminous flux.

12. The method of claim 11, wherein the first light parameter value comprises a first luminous flux value, wherein controlling the lighting elements to meet the first light parameter value comprises controlling the lighting elements to meet the first luminous flux value.

13. The method of claim 12, wherein the first luminous flux value corresponds to a first perceived luminous flux value, wherein determining the second light parameter value based on the first light parameter value comprises:

determining a second perceived luminous flux value based on the first perceived luminous flux value; and

selecting a second luminous flux value corresponding to the second perceived luminous flux value as the second light parameter value.

14. The method of claim 10, further comprising determining a lighting system mode based on an identifier for the lighting system, wherein the second light parameter value is determined based on the lighting system mode.

15. The method of claim 14, wherein the lighting system mode comprises a power reduction mode, wherein the first light parameter value comprises a first luminous flux value and the second light parameter value comprises a second luminous flux value lower than the first luminous flux value.

16. The method of claim 15, wherein controlling lighting elements to meet the first light intensity value comprises:

determining a current magnitude based on the first light parameter value; and

supplying current at the current magnitude to the lighting elements; and

wherein incrementally adjusting lighting element operation to meet the second light parameter value comprises;

incrementally lowering the magnitude of the current supplied to the lighting elements.

17. The method of claim 15, wherein the first parameter value further comprises a first wavelength, wherein the second parameter value further comprises a second wavelength closer to 550 nm than the first wavelength.

18. The method of claim 10, wherein the user perception profile comprises an equation, wherein determining a second light parameter value comprises calculating the second light parameter value as a predetermined percentage of the first light parameter value, wherein the predetermined percentage is selected based on the first light parameter value.

19. The method of claim 10, wherein the lighting elements are operated to meet the first light parameter value at a first time, wherein incrementally adjusting lighting element operation to meet the second light parameter value over a predetermined time period comprises:

determining a second time separated by the predetermined time period from the first time;

determining a plurality of adjustment times between the first time and the second time;

determining a plurality of intermediary light parameter values between the first light parameter value and the second light parameter value, each intermediary light parameter value associated with an adjustment time; and

in response to occurrence of an adjustment time, controlling the lighting element to meet the respective intermediary light parameter value.

20. The method of claim 10, further comprising:

recording an ambient light parameter value at a third time between the first and second times; and

calculating a new intermediary light parameter value for an adjustment time of the plurality of adjustment times based on the ambient light parameter value, wherein the adjustment time is after the third time.