Power management unit with multi-input arbitration
First Claim
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1. A method of determining a power level for powering a lighting fixture to illuminate an environment, the method comprising:
- A) receiving an occupancy input signal, indicative of an occupancy of the environment, from an occupancy sensor;
B) receiving an ambient light level input signal, indicative of an ambient light level of the environment, from an ambient light sensor;
C) archiving data representative of the occupancy input signal received in A) and the ambient light level input signal received in B);
D) processing previously archived data representative of at least one previous occupancyinput signal and/or at least one previous ambient light level input signal;
E) receiving a control input signal; and
F) arbitrating, based at least in part on the previously archived data processed in D), among the occupancy input signal, the ambient light level input signal, and the control input signal to determine the power level to power the lighting fixture.
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Abstract
In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures.
680 Citations
22 Claims
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1. A method of determining a power level for powering a lighting fixture to illuminate an environment, the method comprising:
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A) receiving an occupancy input signal, indicative of an occupancy of the environment, from an occupancy sensor; B) receiving an ambient light level input signal, indicative of an ambient light level of the environment, from an ambient light sensor; C) archiving data representative of the occupancy input signal received in A) and the ambient light level input signal received in B); D) processing previously archived data representative of at least one previous occupancy input signal and/or at least one previous ambient light level input signal; E) receiving a control input signal; and F) arbitrating, based at least in part on the previously archived data processed in D), among the occupancy input signal, the ambient light level input signal, and the control input signal to determine the power level to power the lighting fixture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A power management module for a lighting fixture, the power management module comprising:
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an interface to receive; (i) an occupancy input signal, indicative of an occupancy of the environment, from an occupancy sensor; (ii) an ambient light level input signal, indicative of an ambient light level of the environment, from an ambient light sensor; and (iii) a control input signal, via a network, from a controller; a memory to archive data representative of the occupancy input signal and the ambient light level input signal; and a processor, operably coupled to the interface and the memory, to process archived data representative of the at least one previous occupancy input signal and/or at least one previous ambient light level input signal and to arbitrate, based at least in part on processing of the archived data, among the occupancy input signal, the ambient light level input signal, and the control input signal to determine a power level to power the lighting fixture. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A system for illuminating an environment, the system comprising:
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a lighting fixture comprising at least one light source to illuminate the environment; an occupancy sensor to provide an occupancy input signal indicative of an occupancy status of the environment; an ambient light sensor to provide an ambient light level input signal indicative of an ambient light level of the environment; and a power management unit, operably coupled to the lighting fixture, the occupancy sensor, and the ambient light sensor, to control a power level of power supplied to the lighting fixture, the power management unit comprising; a network interface to receive a control input signal, via a network, indicative of an operating mode of the lighting fixture and/or a demand response state from an energy provide; a memory to archive data representative of the occupancy input signal and the ambient light level input signal; and a processor, operably coupled to the interface and the memory, to process previously archived data representative of at least one previous occupancy input signal and/or at least one previous ambient light level input signal and to determine the power level based at least in part on the processed data by arbitrating among the occupancy input signal, the ambient light level input signal, and the control input signal. - View Dependent Claims (19, 20, 21, 22)
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Specification