| http://www.w3.org/ns/prov#value | - if you have the camera already working, i still think you should just use only the camera. if you have a sign of known shape and size, you can easily calculate the robots exact position with respect to that sign. if you put simple colored leds around the room, the camera can tell which beacon it is looking at.another beacon idea i have, and will probably build sooner or later, is a robot that does
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