DocumentCode :
2689633
Title :
Minimum uncertainty robot navigation using information-guided POMDP planning
Author :
Candido, Salvatore ; Hutchinson, Seth
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Illinois, Urbana, IL, USA
fYear :
2011
fDate :
9-13 May 2011
Firstpage :
6102
Lastpage :
6108
Abstract :
A ubiquitous problem in robotics is determining policies that move robots with uncertain process and observation models (partially-observed state systems) to a goal configuration while avoiding collision. We propose a new method to solve this minimum uncertainty navigation problem. We use a continuous partially-observable Markov decision process (POMDP) model and optimize an objective function that considers both probability of collision and uncertainty at the goal position. By using information-theoretic heuristics, we are able to find policies that are effective for both minimizing collisions and stopping near the goal configuration. We additionally introduce a filtering algorithm that tracks collision free trajectories and estimates the probability of collision.
Keywords :
Markov processes; collision avoidance; continuous systems; filtering theory; heuristic programming; mobile robots; navigation; observers; probability; uncertain systems; POMDP model; collision avoidance; collision free trajectory; collision probability; continuous partially-observable Markov decision process; filtering algorithm; goal configuration; goal position; information-guided POMDP planning; information-theoretic heuristics; minimum uncertainty navigation problem; objective function; observation models; partially-observed state systems; robotics; ubiquitous problem; uncertainty robot navigation; Aerospace electronics; Approximation algorithms; Approximation methods; Collision avoidance; Robots; Switches; Uncertainty;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Robotics and Automation (ICRA), 2011 IEEE International Conference on
Conference_Location :
Shanghai
ISSN :
1050-4729
Print_ISBN :
978-1-61284-386-5
Type :
conf
DOI :
10.1109/ICRA.2011.5979695
Filename :
5979695
Link To Document :
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