Long exposure shows Roomba cleaning path

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If you have been following my tweets, I am a big Roomba fan. I have been quite fascinated by the way the Roomba seems to get every part of the room, detects corners to spend more time and energy there etc. The user manual that comes with it tries to explain that the seemingly random motion is actually a concerted exercise in discovering, maximizing power use and efficiency. However, it’s easiest to understand if you look at the long-exposure shot taken by signaltheorist.

The above image shows the entire path taken by a Roomba over 30 minutes. I would really like to see how this looks in a bigger room.

[Doobybrain via Gizmodo]