Where contemporary robot vacuum cleaners use everything from random motion to laser range finders and ultra sound to navigate, the Dyson builds a floor plan with its camera, knows where it is and where it hasn’t been and uses infra-red for collision avoidance.

http://www.theaustralian.com.au/technology/no-hiding-with-dysons-eye-robot/story-e6frgakx-1227048581948