The Sign Says "Occupied"

By Alan

Ever feel like you are being watched? Increasingly, this is true, since security cameras, traffic cameras, monitoring systems, and other kinds of video are in more and more locations. But, if you consider the definition of watching being something other than just visual pictures, you have lots of other things observing you. Motion detectors, audio detection, radar systems, all "watch" you to see if you trigger their programming.

We often never really think about the sophistication of designing automatic things that react to you. There are sensors to figure out the proximity of a person, either by infra-red lights, noise, or motion. Lots of ways to determine if a human (or at least an upright, warm, moving body) actually is nearby. Oh, the infra-red sensors know you are there. <click>

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