Configurable lighting system

• US 10,178,746 B2
• Filed: 05/04/2018
• Issued: 01/08/2019
• Est. Priority Date: 02/22/2016
• Status: Active Grant

• Current Assignee: Hubbell Lighting Incorporated (Hubbell, Inc.)
• Original Assignee: Hubbell, Inc.
• Inventors: Yadav, Pritam, Bailey, Chris
• Primary Examiner(s): A, Minh D
• Application Number:
  US15/971,027
• Publication Number:
  US 20180255628A1
• Time in Patent Office: 249 Days
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 47/16 by timing means
• CPC Class Codes: H05B 47/19 via wireless transmission
• CPC Class Codes: H05B 47/195 the transmission using visible or infrared light
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

Apparatus, systems, and methods for controlling light output in a lighting system based on defined light profiles are provided. In one example implementation, a light fixture can include a first light emitting diode (LED) array having one or more LED light sources and a second LED array having one or more LED light sources. The light fixture can include a power circuit configured to provide power to the first LED array and the second LED array according to a power distribution among the first LED array and the second LED array. The light fixture can include one or more control devices configured to control the power circuit to adjust the power distribution among the first LED array and the second LED array based at least in part on a signal indicative of a real time clock and a defined light profile associated with a user identified to be present in a space illuminated by the light fixture.

Claims

1. A light fixture, comprising:

a first light emitting diode (LED) array having one or more LED light sources;

a second LED array having one or more LED light sources;

a power circuit configured to provide power to the first LED array and the second LED array according to a power distribution among the first LED array and the second LED array;

one or more control devices, the one or more control devices configured to control the power circuit to adjust the power distribution among the first LED array and the second LED array based at least in part on a signal indicating presence of the user in or near the space, a signal indicative of a real time clock, and a signal indicative of a defined light profile associated with a user present in or near a space illuminated by the light fixture.

2. The light fixture of claim 1, wherein the defined light profile is obtained from a user device used by the user in the space.

3. The light fixture of claim 1, wherein the defined light profile specifies an adjustment in one or more parameters of a light output of the light fixture as a function of time.

4. The light fixture of claim 3, wherein the one or more parameters of the light output comprises a color temperature of the light output.

5. The light fixture of claim 3, wherein the one or more parameters of the light output comprises an intensity of the light output.

6. The light fixture of claim 3, wherein the defined light profile specifies a decrease in the color temperature of the light output over time from a first color temperature to a second color temperature as the signal indicative of the real time clock transitions from a signal associated with an earlier time in the day-to-night period to a signal associated with a later time in the day-to-night period.

7. The light fixture of claim 6, wherein the defined light profile specifies an increase in the color temperature of the light output when the signal indicative of the real time clock indicates a transition from a day portion of the day-to-night period to a night portion of the day-to-night period.

8. The light fixture of claim 1, wherein the defined light profile specifies an adjustment in the light output over time based on calendar data associated with the user.

9. The light fixture of claim 1, wherein the defined light profile specifies an adjustment in the light output over time based at least in part on health data associated with the user.

10. The light fixture of claim 1, wherein the one or more light sources comprise a first LED array having one or more LED devices associated with a first color temperature and a second LED array having one or more LED devices associated with a second color temperature.

11. The light fixture of claim 1, wherein the light fixture is configured to communicate data associated with the defined light profile to one or more remote light fixtures via a communication interface.

12. The light fixture of claim 1, wherein the signal indicative of the real time clock is obtained from a remote device via the communication interface.

13. A method of controlling the light output of a light fixture, the method comprising:

determining, by one or more control devices, the presence of one or more users in or near a space illuminated by the light fixture based on one or more signals indicative of presence of the one or more users in or near the space;

obtaining, by one or more control devices, data associated with a defined light profile associated with each of the one or more users determined to be in or near the space illuminated by the light fixture;

determining, by the one or more control devices, one or more parameters of a light output from the light fixture based at least in part on the data associated with the defined light profile associated with each of the one or more users; and

adjusting, by the one or more control devices, a power distribution among the a plurality of light sources in the light fixture based at least in part on the one or more parameters of the light output and one or more signals indicating presence of the user(s) in or near the space.

14. The method of claim 13, wherein obtaining, by the one or more control devices, data associated with a defined light profile comprises obtaining data associated with a first defined light profile associated with a first user and data associated with a second defined light profile associated with a second user.

15. The method of claim 14, wherein determining, by the one or more control devices, one or more parameters of a light output comprises:

determining, by the one or more control devices, a priority associated with the first defined light profile and the second defined light profile; and

determining, by the one or more control devices, the one or more parameters based at least in part on the priority.

16. The method of claim 14, wherein determining, by the one or more control devices, one or more parameters of a light output comprises:

determining, by the one or more control devices, a blended light profile based on the first defined light profile and the second defined light profile; and

determining, by the one or more control devices, the one or more parameters based at least in part on the blended light profile.

17. The method of claim 13, wherein the data associated with the defined light profile for each of the one or more users identified to be in the space is obtained from a remote device via a communication interface.

18. The method of claim 13, wherein the method further comprises communicating data associated with the power distribution to one or more other light fixtures in the space via a communications interface.

19. A circuit for powering a plurality of light emitting diode (LED) arrays associated with a light fixture, comprising:

a power circuit;

a communication interface; and

a control device operable to perform operations, the operations comprising;

obtaining a defined light profile associated with a user in or near the space via the communication interface;

obtaining a signal indicative of a real time clock;

determining from the defined light profile a color temperature and an intensity of a light output based at least in part on the signal indicative of the real time clock; and

sending a control signal to the power circuit to control a power distribution among the plurality of LED arrays based at least in part on the determined color temperature and intensity of the light output and one or more signals indicating presence of the user in or near the space.