METHOD FOR AUTOMATICALLY RECALIBRATING A ROBOTIC ARM
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United States of America Patent
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Issued Date -
Apr 28, 2016
app pub date -
Oct 27, 2015
filing date -
Oct 27, 2014
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Abstract
A method for automatically recalibrating a robotic arm is provided. Firstly, the recalibration of a robotic arm is automatically activated at a pre-determined time. Then, an eye-in-hand (EIH) camera of the robotic arm is controlled and moved to one or a plurality of pre-determined orientations to focus and capture an image of an identifiable simple pattern, which is fixed with respect to a body of the robotic arm. Then, the detecting orientation of a movable portion of the robotic arm is calculated according to the captured image, and an error between the detecting orientation and the pre-determined orientation is obtained through comparison. Lastly, the error of the robotic arm is calibrated.
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