Patent ID: 8531134

Claim:
A lighting fixture to provide variable occupancy-based lighting, the lighting fixture comprising: a housing; at least one occupancy sensor, disposed in or coupled to the housing, to provide occupancy information; a plurality of light emitting diodes (LEDs) disposed in the housing to provide the variable occupancy-based lighting at a plurality of light levels; a power management module (PMM), disposed in the housing and operatively coupled to the at least one occupancy sensor and the plurality of LEDs, to adjust the variable occupancy-based lighting based at least in part on the occupancy information provided by the at least one occupancy sensor, the power management module including: a memory to store lighting parameters, wherein the lighting parameters include at least an active power output level of the plurality of light levels and an inactive power output level of the plurality of light levels; and a digital light agent controller to implement a state machine to analyze the occupancy information and control the plurality of LEDs based on the lighting parameters in the memory so as to provide the variable occupancy-based lighting at the active power output level of the plurality of light levels or the inactive power output level of the plurality of light levels; and a real-time clock, operatively coupled to the power management module, to generate an output as a unit of time to facilitate tracking time-based operational modes associated with the lighting fixture, wherein the digital light agent controller: (i) records in the memory the occupancy information and related timelines, based on the output of the real-time clock, so as to maintain a database of historic data of lighting usage representing the time-based operational modes associated with the lighting fixture; (ii) predicts future lighting requirements based at least in part on the database of historic data of lighting usage; and (iii) determines at least one adjustment to the variable occupancy-based lighting, based at least in part on the prediction of future lighting requirements, so as to provide at least one of a reduction energy consumption of the lighting fixture and an optimization of at least one process implemented using the PMM.