Title
Universal fine interpolation algorithms for accuracy improvements of industrial robots
Abstract
Visual servoing possesses the capability to improve the absolute accuracy of jointed arm robots. In this context, an online closed-loop control of the tool center point movement offers the possibility to realize trajectories fulfilling high accuracy requirements. Thereby a robot independent external control efficiently interoperating with manufacturer specific robot controllers enables multifunctional usability. For a suitable external control, algorithms are needed, by which corrected movement instructions for each interpolation cycle are calculated, being compliant to the dynamic capabilities of different robot types. In the paper, control algorithms for calculating fine interpolation points are introduced, which serve the purpose of compensating positional deviations. The algorithm for compensating deviations on linear path segments is based on a movement orientation point forerunning the actual robots' position. In circular segments the corrective directional changes are limited to achieve smooth movement results. Multiple tests performed at real robot systems prove the effectiveness of the method.
Year
DOI
Venue
2016
10.1109/ICUMT.2016.7765402
2016 8th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)
Keywords
Field
DocType
Absolute accuracy,jointed arm robot,closed-loop control,control algorithms
Control algorithm,Robotic systems,Absolute accuracy,Computer science,Dynamic capabilities,Usability,Interpolation,Algorithm,Visual servoing,Robot
Conference
ISSN
ISBN
Citations 
2157-0221
978-1-4673-8819-1
0
PageRank 
References 
Authors
0.34
5
4
Name
Order
Citations
PageRank
Arnd Buschhaus100.34
Stefan Krusemark200.34
Engin Karlidag300.34
Jörg Franke42620.00