HowStuffWorks "Roomba Navigation" | Diigo - 1 views
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Andrew Drogan on 13 Oct 11When Roomba knocks into something, its bumper retracts, activating mechanical object sensors that tell Roomba it has encountered an obstacle. It then performs (and repeats) the sequential actions of backing up, rotating and moving forward until it finds a clear path.
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Thomas Corcoran on 13 Oct 11I like how this shows all the different types of sensors and where they are, and what path the roomba takes