File
this under “Great ideas I wish I’d had”: NREL has won an R&D
award
for its “Image-Processing Occupancy Sensor” or IPOS for short.
The
idea is simple: motion-based sensors for lighting are fine when
there’s motion, less good when you’re engaged in brain work, or
other tasks, that don’t require motion. And who has never had the
motion-controlled lights go out on them when they’re in the
bathroom? (Or was that just me?)
So
the idea is to use a camera and image-processing software to
determine when someone is in a space, turning the lights on for them
and off when the space becomes empty. Details are given on the NREL
web page, “NREL
Adds Eyes, Brains to Occupancy Detection”,
which I can barely bring myself to read I’m so jealous.
There
is one question that occurs to me though: when the lights are out,
how does the sensor know to turn them on when someone enters? Unless
it uses IR light to see in the dark, which would rather defeat it’s
energy-saving purpose.
Didn’t
think of that, did you guys!
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