Deviations in Robot’s Picking
This section introduces issues related to deviations in robot’s picking.
Symptom:
After the Vision System is delivered to production, the accuracy may decrease, and picking inaccuracy issues may occur. For example:
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The target object can be picked from the front, but deviations occur when the robot picks it from the back.
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The actual pick point deviated greatly from that calculated by the vision system, resulting in picking failure or collision.
The robot picking inaccuracy issue indicates that the picking errors have exceeded the picking accuracy requirements of the project.
Possible Cause:
Picking errors are cumulative errors resulting from various inaccuracies that accumulate throughout the 3D vision-guided robot picking process.
The picking error mainly comes from the following aspects:
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Camera errors
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Robot errors
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Extrinsic parameter errors
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Vision recognition errors
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Other errors (e.g. collisions, instable mounting)
For more information about picking errors, please refer to Overview of Picking Accuracy.
Solution:
Please refer to Troubleshoot Picking Errors to resolve the issues.