Robot calibration apparatus for calibrating a robot arm
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United States of America Patent
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Nov 24, 2015
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app pub date -
Oct 15, 2014
filing date -
Oct 15, 2014
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Abstract
An encoded calibrating plate is fixed on the working environment of the robot arm and has a chessboard pattern with each square in the chessboard pattern being an encoding. The encoding indicates direction or position on the encoded calibration plate. A visual system of the robot arm captures an image of the encoded calibrating plate, calculates the coordinates encoding of the encoded calibration plate, and positions the visual system to calibrate a positioning error of the robot arm and the visual system.
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