Power management unit with power source arbitration

摘要

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.

主权项

1. A method of lighting an environment with variable lighting, the method comprising:
A) storing, in a memory, (i) at least one rule for lighting the environment based at least in part on energy demand information associated with powering a plurality of light emitting diodes (LEDs) with electrical power so as to produce a luminous flux and (ii) a model of a luminous efficacy of the plurality of LEDs, wherein the model of the luminous efficacy represents a ratio of the luminous flux to the electrical power; B) performing a comparison of the energy demand information with energy consumption information related to consuming the electrical power from each of a plurality of power sources according to the at least one rule; C) selecting at least one of an intensity of the variable lighting and a power source from among the plurality of power sources for powering the plurality of LEDs according to the comparison performed in B) and the model of the luminous efficacy of the plurality of LEDs; D) performing an analysis of at least one of the energy demand information, the energy consumption information, and a weather forecast; and E) generating a change to the at least one rule based on the analysis of the at least one of the energy demand information, the energy consumption information, and the weather forecast.