The Archimede Rover: A Comparison between Simulations and Experiments

Autor: Matteo Caruso, Marco Giberna, Martin Görner, Paolo Gallina, Stefano Seriani
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Robotics, Vol 12, Iss 5, p 125 (2023)
Druh dokumentu: article
ISSN: 2218-6581
DOI: 10.3390/robotics12050125
Popis: In this paper, we propose an in-depth evaluation of the performance of the Archimede rover while traversing rough terrain with loose soil. In order to better analyze this, the reality gap is evaluated when simulating the behavior with an open-source simulator. To this extent, we implement a full model of the rover in the open-source dynamics simulator Gazebo, along with several types of terrains that replicate the experimental conditions. The rover control system is equipped with a kinematics model that allows for driving in different modes. We implement an odometric system aboard the rover, as well as an external optical absolute tracking system as reference. We estimate the drift occurring during driving in different configurations, two types of soil with corresponding wheel geometries. The results show good adherence of the odometry when the rover drives on planar ground; conversely, as expected, a marked influence of slope is seen on wheel drift. The reality gap between simulations and experimental results is kept comparatively small provided that slopes are not present.
Databáze: Directory of Open Access Journals