Learning soft task priorities for control of redundant robots

Valerio Modugno, Gerard Neumann, Elmar Rueckert, Giuseppe Oriolo, Jan Peters, Serena Ivaldi
2016 2016 IEEE International Conference on Robotics and Automation (ICRA)  
One of the key problems in planning and control of redundant robots is the fast generation of controls when multiple tasks and constraints need to be satisfied. In the literature, this problem is classically solved by multi-task prioritized approaches, where the priority of each task is determined by a weight function, describing the task strict/soft priority. In this paper, we propose to leverage machine learning techniques to learn the temporal profiles of the task priorities, represented as
more » ... arametrized weight functions: we automatically determine their parameters through a stochastic optimization procedure. We show the effectiveness of the proposed method on a simulated 7 DOF Kuka LWR and both a simulated and a real Kinova Jaco arm. We compare the performance of our approach to a state-of-the-art method based on soft task prioritization, where the task weights are typically hand-tuned.
doi:10.1109/icra.2016.7487137 dblp:conf/icra/ModugnoNRO0I16 fatcat:vjfipq6hizdvvl4umdusc4gz3e