Automatic seam tracker and real time error cumulative...

Details Automatic seam tracker and real time error cumulative... Automatic seam tracker and real time error cumulative...

G - Physics

05

B

341/97

G05B 19/42 (2006.01) B23Q 35/128 (2006.01) G05B 19/425 (2006.01)

Patent

CA 1331796

ABSTRACT OF THE DISCLOSURE A control processor in a robotic system treats optically sensed locations along the seam path ahead of the tool, which are classified in relation to elapsed distances and identified in 3-D coordinates and 3-axes tool orienta- tion, to apply in real time and under feedforward a control signal representing the error between anticipated tool position and anticipated sensed location on the path. In the process, the anticipated sensed location is obtained by interpolation between actually sensed locations. A taught path is recovered from the robot. The control processor operation is also based on elapsed distances and related to actual tool position provided by the robot.

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