There is a need for lighting in the workplace but to save energy the amounts should be monitored and turned off if no one is occupying workstations.
The workstations could be monitored by activity. But another way would be to fly a sensor equipped drone around the workplace and determine what and where activity is and the amount of light needed. Task lighting can help, but it would be efficient to use sunlight if available, through windows. The drone could monitor light levels and remotely adjust the window shades or lights for best efficiency.
The drone could also monitor temperature in various spots where workers are and adjust the heating or cooling. The efficiency of the HVAC system could be increased by shutting off where no workers are present.
This fits in more with the IIoT, industrial internet of things.
