Lighting control
First Claim
Patent Images
1. A method of controlling a light, comprising:
- detecting, by a controller associated with the light, a light adjusting trigger event;
selecting, by the controller, a random delay time;
adjusting by the controller, the light, wherein the light adjustment occurs the random delay time after detecting the light adjusting trigger event, and wherein adjusting the light comprises adjusting a light intensity of the light by an increment step, wherein the incremental step is a fraction of a difference between a present light intensity and a target light intensity;
after adjusting the light, checking a measured light level, if the measured light level is still less than the target light intensity, then further adjusting the light, wherein the further adjusting occurs a new random delay time after a fixed adjustment interval after adjusting the light, and repeating this process until the measured light level approximately reaches the target light intensity.
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Abstract
An apparatus and method of controlling a light are disclosed. One method includes detecting a light adjusting trigger event, selecting a random delay time, and adjusting the light, wherein the light adjustment occurs the random delay time after detecting the light adjusting trigger event.
125 Citations
22 Claims
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1. A method of controlling a light, comprising:
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detecting, by a controller associated with the light, a light adjusting trigger event; selecting, by the controller, a random delay time; adjusting by the controller, the light, wherein the light adjustment occurs the random delay time after detecting the light adjusting trigger event, and wherein adjusting the light comprises adjusting a light intensity of the light by an increment step, wherein the incremental step is a fraction of a difference between a present light intensity and a target light intensity; after adjusting the light, checking a measured light level, if the measured light level is still less than the target light intensity, then further adjusting the light, wherein the further adjusting occurs a new random delay time after a fixed adjustment interval after adjusting the light, and repeating this process until the measured light level approximately reaches the target light intensity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of controlling a light, comprising:
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detecting, by a controller associated with the light, a light adjusting trigger event, comprising sensing a light level change greater than a threshold change; selecting, by the controller, a random delay time; adjusting by the controller, the light, wherein the light adjustment occurs the random delay time after detecting the light adjusting trigger event;
receiving a light profile, wherein at least one light parameter is included within the light profile;wherein the threshold change as either a percentage or an absolute value is based on at least one of the light parameters. - View Dependent Claims (17, 18)
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19. A method of controlling a light, comprising:
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detecting, by a controller associated with the light, a light adjusting trigger event, comprising sensing a light level change greater than a threshold change; selecting, by the controller, a random delay time; adjusting the light, wherein the light adjustment occurs the random delay time after detecting the light adjusting trigger event; wherein adjusting the light comprises adjusting a light intensity of the light by an increment step, wherein the incremental step is a fraction of a difference between a present light intensity and a target light intensity; and
further comprising;if the target light intensity is greater than the present light intensity, then adjusting the light intensity at a faster rate if the present light intensity is below an acceptable level, and at a slower rate if the present light intensity is greater than the acceptable level. - View Dependent Claims (20)
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21. A method of controlling a light, comprising:
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detecting, by a controller associated with the light, a light adjusting trigger event, comprising sensing a light level change greater than a threshold change; selecting, by the controller, a random delay time; adjusting the light, wherein the light adjustment occurs the random delay time after detecting the light adjusting trigger event; wherein the light is within a fixture, and wherein adjusting the light optionally comprises powering off or powering on one or more lights in the fixture; and
further comprising accommodating light ballasts that are inefficient below a certain percentage brightness, wherein adjusting the light intensity below the certain percentage brightness comprises dimming off one or more lights gradually simultaneously with brightening the remaining lights to achieve the desired adjustment.
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22. An independently controllable light, comprising:
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a light; a light sensor; and a controller interfaced with the light and the light sensor, the controller operative to; detect a light adjusting trigger event; select a random delay time; adjust the light, wherein the light adjustment occurs the random delay time after detecting the light adjusting trigger event, and wherein light adjustment includes adjusting a light intensity of the light by an increment step, wherein the incremental step is a fraction of a difference between a present light intensity and a target light intensity; check a measured light level after adjusting the light, wherein if the measured light level is still less than the target light intensity, then further adjust the light, wherein the further adjusting occurs a new random delay time after a fixed adjustment interval after adjusting the light, and repeating this process until the measured light level approximately reaches the target light intensity.
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Specification