Robot system

Data processing: vehicles – navigation – and relative location – Navigation – Employing position determining equipment

Reexamination Certificate

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Details

C700S258000, C356S003050, C356S005110, C340S988000

Reexamination Certificate

active

07421338

ABSTRACT:
A robot system including a beacon provided with a transmitting part to transmit a light for location determination, and a mobile robot provided with a receiving part to receive the light. The robot system further includes a rotation driving part to rotate the transmitting part about a predetermined axis; an encoder to add phase information regarding how much the transmitting part is rotated by the rotation driving part with respect to a reference direction to the light; and a location determiner to determine a location of the mobile robot based on the phase information of the light received by the receiving part. Accordingly, a robot system is provided, which can precisely determine a location of a mobile robot regardless of external environmental conditions, distance, and reduction of cost by using a few transmitters.

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J. Borenstein, H.R. Everett, L. Feng, “Where am I? Sensors and Methods for Mobile Robot Positioning”, 1996 by University of Michigan, Chapter 6.
European search report for application 04250985, 1-2206, Nov. 8, 2004, 5 pp.

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