Control system for lighting assembly
First Claim
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1. A lighting system comprising:
- a light emitting element operable to emit light at a level between zero and 100 percent;
a light level sensor positioned to detect a total level of light;
a motion detector positioned to detect a motion in a predefined space;
a controller coupled to the light emitting element, the light level sensor, and the motion detector and operable to compare a measured total level of light to a set point and to activate the light emitting element in response to the measured total light level being below the setpoint, the controller further operable to activate the light emitting element in response to the detection of motion within the space;
wherein the controller is operable in a first mode and a second mode;
wherein in the first mode, the controller activates the light emitting elements using a discrete signal;
wherein in the second mode, the controller activates the light emitting elements using an analog signal.
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Abstract
A lighting system includes a light emitting element operable to emit light at a level between zero and 100 percent, a light level sensor positioned to detect a total level of light, and a motion detector positioned to detect a motion in a predefined space. A controller is coupled to the light emitting element, the light level sensor, and the motion detector and is operable to compare a measured total level of light to a set point and to activate the light emitting element in response to the measured total light level being below the setpoint. The controller is further operable to activate the light emitting element in response to the detection of motion within the space.
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Citations
14 Claims
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1. A lighting system comprising:
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a light emitting element operable to emit light at a level between zero and 100 percent; a light level sensor positioned to detect a total level of light; a motion detector positioned to detect a motion in a predefined space; a controller coupled to the light emitting element, the light level sensor, and the motion detector and operable to compare a measured total level of light to a set point and to activate the light emitting element in response to the measured total light level being below the setpoint, the controller further operable to activate the light emitting element in response to the detection of motion within the space; wherein the controller is operable in a first mode and a second mode; wherein in the first mode, the controller activates the light emitting elements using a discrete signal; wherein in the second mode, the controller activates the light emitting elements using an analog signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of controlling a light level within a space, the method comprising:
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sensing a current light level at a predetermined location; storing a first desired light level in a controller operable in a first mode and a second mode; comparing the sensed light level with the first desired light level; adjusting the light output of a plurality of fluorescent lights in response to the comparison of the sensed light level to the first desired light level until the sensed light level is about equal to the first desired light level; remotely adjusting the desired light level to a second desired light level; and adjusting the light output of the plurality of fluorescent lights in response to a comparison of the sensed light level to the second desired light level until the sensed light level is about equal to the second desired light level; wherein in the first mode, the controller adjusts the light output of the plurality of fluorescent lights using a discrete signal; wherein in the second mode, the controller adjusts the light output of the plurality of fluorescent lights using an analog signal. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification