Auto commissioning of light fixture using optical bursts
First Claim
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1. An auto-commissioning lighting system comprising:
- a light fixture comprising;
a light source;
a receiver; and
a fixture controller electrically coupled with the light source, wherein the controller is configured to modulate the light emitted from the light source to encode a burst pattern that is humanly imperceptible, wherein the burst pattern comprises a light fixture identifier; and
a light sensor configured to be disposed remotely within an architectural space relative to the light fixture, the light sensor comprising;
a photosensor;
a transmitter configured to communicate with the receiver of the light fixture; and
a light sensor controller electronically coupled with the photosensor and the transmitter, the light sensor controller configured to;
receive the burst pattern from the light fixture via the photosensor;
associate the light fixture identifier with the light fixture using the burst pattern;
determine an illuminance adjustment value for the light fixture from the burst pattern; and
send the illuminance adjustment value and the light fixture identifier to the receiver of the light fixture using the transmitter of the light sensor.
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Abstract
Methods and systems herein provide for determining lighting contributions of light fixtures to an environment. In one embodiment, a system includes a light sensor and a controller. The light sensor generates light level data based on measured light levels. The controller determines a nominal light level based on the light level data, and identifies an optical burst pattern in the light level data generated by a light fixture. The controller then determines a lighting contribution of the light fixture based on the optical burst pattern and the nominal light level.
66 Citations
26 Claims
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1. An auto-commissioning lighting system comprising:
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a light fixture comprising; a light source; a receiver; and a fixture controller electrically coupled with the light source, wherein the controller is configured to modulate the light emitted from the light source to encode a burst pattern that is humanly imperceptible, wherein the burst pattern comprises a light fixture identifier; and a light sensor configured to be disposed remotely within an architectural space relative to the light fixture, the light sensor comprising; a photosensor; a transmitter configured to communicate with the receiver of the light fixture; and a light sensor controller electronically coupled with the photosensor and the transmitter, the light sensor controller configured to; receive the burst pattern from the light fixture via the photosensor; associate the light fixture identifier with the light fixture using the burst pattern; determine an illuminance adjustment value for the light fixture from the burst pattern; and send the illuminance adjustment value and the light fixture identifier to the receiver of the light fixture using the transmitter of the light sensor. - View Dependent Claims (2)
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3. A light sensor providing auto-commissioning to an architectural space comprising:
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a photosensor; a communication interface configured to communicate with at least a first light source and second light source; and a controller electronically coupled with the light sensor and the communication interface, the controller configured to; receive a first burst pattern from a first light source from the photosensor, wherein the first burst pattern encodes a first identifier associated with the first light source; associate the first identifier with the first light source; determine a first illuminance adjustment value for the first light source based on the first burst pattern; and send the first illuminance adjustment value to the first light source using the communication interface. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
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11. An auto-commissioning light fixture comprising:
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a light emitting diode emitting light in the visual portion of the light spectrum; and a controller electrically coupled with the light emitting diode, wherein the controller is configured to; modulate the light emitted from the light emitting diode to encode a first burst pattern comprising periods of time when the light emitting diode emits light at a first luminance level and periods of time when the light emitting diode emits light at a second luminance level that is less than the first luminance level, wherein the total amount of time the light emitting diode illuminates light at the second luminance level over a period of 500 microseconds is less than 200 microseconds. - View Dependent Claims (12, 13, 14, 15, 16)
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17. An auto-commissioning light fixture comprising:
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a light emitting diode emitting light in the visual portion of the light spectrum; and a controller electrically coupled with the light emitting diode, wherein the controller is configured to; modulate the light emitted from the light emitting diode to encode a first burst pattern comprising periods of time when the light emitting diode emits light at a first luminance level and periods of time when the light emitting diode emits light at a second luminance level that is less than the first luminance level, wherein the percentage of time when the light emitting diode emits light at the second luminance level versus the first luminance level is less than 20%. - View Dependent Claims (18)
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19. A method for auto commissioning comprising:
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receiving a first burst pattern from a first light source at a light sensor, wherein the first burst pattern comprises periods of time when the first light source is illuminating light at a first luminance level and periods of time when the first light source is illuminating light at a second luminance level that is less than the first luminance level, wherein the periods of time when the first light source illuminates light at the second luminance level light is humanly imperceptible, and wherein the first burst pattern comprises a first light source identifier; associating the first light source identifier with the first light source based on the first burst pattern; determining a first illuminance adjustment value for the first light source based on the first burst pattern; and sending the first illuminance adjustment value to a first light source. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification