Patent ID: 7383107
Filing Date: 2008-06-03
Classification: G01C

Abstract:
1. A wheeled device navigation system comprising: a motorized wheeled device; at least one computer having software that performs at least one video camera removably attached to said wheeled device for perceiving visual surroundings of said wheeled device; at least one proximity sensor; at least one rotation sensor; at least one cue sensor removably attached to said wheeled device for sensing surroundings of said wheeled device; at least one cue marker disposable in areas surrounding said wheeled device and configured to output a signal to be sensed by said cue sensor; and an input device including one of a switch and a microphone, wherein said at least one rotation sensor, said at least one cue sensor and said input device are interfaced to said at least one computer which runs the specialized software, and said at least one proximity sensor performs sensing operations during performance of said teaching functions for thereby permitting avoidance of wheeled device collision with obstacles during navigation of said wheeled device through a taught trajectory and allowing for close approach of said wheeled device to solid bodies present during performance of said teaching functions.