Robotic Assembly Using a Singularity-Free Orientation Representation Based on Quaternions

Summary, in English

New robotic applications often require physical interaction between the robot and its environment. To this purpose, external sensors might be needed, as well as a suitable way to specify the tasks. One complication that might cause problems in the task execution is orientation representation singularities. In this paper quaternions are used as a singularity-free orientation representation within the constraint-based task specification framework. The approach is experimentally verified in a force controlled assembly task. The task chosen contains a redundant degree of freedom that is exploited using the constraint-based task specification framework.

• Author: Andreas Stolt; Magnus Linderoth; Anders Robertsson; Rolf Johansson
• Department/s: Department of Automatic Control; ELLIIT: the Linköping-Lund initiative on IT and mobile communication
• Publishing year: 2012
• Language: English
• Pages: 549-554
• Publication/Series: IFAC Proceedings Volumes
• Volume: 45
• Issue: 22
• Full text: - 763 kB; Download statistics
• Links: http://dx.doi.org/10.3182/20120905-3-HR-2030.00074
• Document type: Conference paper
• Publisher: IFAC
• Topic: Control Engineering
• Conference name: 10th International IFAC Symposium on Robot Control
• Conference date: 2012-09-05
• Conference place: Dubrovnik, Croatia
• Status: Published
• Project: LU Robotics Laboratory; ROSETTA; ProFlexa; LU Robotics Laboratory; ROSETTA; ProFlexa
• Research group: LCCC
• ISBN/ISSN/Other: ISSN: 1474-6670; ISBN: 978-3-902823-11-3