2021 10th European Conference on Mobile Robots, ECMR 2021 - Proceedings
Augmenting GRIPS with heuristic sampling for planning feasible trajectories of a car-like robot
Publication type: Proceedings Article
Publication date: 2021-08-01
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Abstract
Kinodynamic motion planning for non-holomonic mobile robots is a challenging problem that is lacking a universal solution. One of the computationally efficient ways to solve it is to build a geometric path first and then transform this path into a kinematically feasible one. Gradient-informed Path Smoothing (GRIPS) [1] is a recently introduced method for such transformation. GRIPS iteratively deforms the path and adds/deletes the waypoints while trying to connect each consecutive pair of them via the provided steering function that respects the kinematic constraints. The algorithm is relatively fast but, unfortunately, does not provide any guarantees that it will succeed. In practice, it often fails to produce feasible trajectories for car-like robots with large turning radius. In this work, we introduce a range of modifications that are aimed at increasing the success rate of GRIPS for car-like robots. The main enhancement is adding an additional step that heuristically samples the waypoints along the bottleneck parts of the geometric paths (such as sharp turns). The results of the experimental evaluation provide a clear evidence that the success rate of the suggested algorithm is up to 40% higher compared to the original GRIPS and hits the bar of 90%, while its runtime is lower.
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Angulo B., Radionov I., Yakovlev K. Augmenting GRIPS with heuristic sampling for planning feasible trajectories of a car-like robot // 2021 10th European Conference on Mobile Robots, ECMR 2021 - Proceedings. 2021.
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Angulo B., Radionov I., Yakovlev K. Augmenting GRIPS with heuristic sampling for planning feasible trajectories of a car-like robot // 2021 10th European Conference on Mobile Robots, ECMR 2021 - Proceedings. 2021.
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TY - CPAPER
DO - 10.1109/ECMR50962.2021.9568818
UR - https://doi.org/10.1109%2FECMR50962.2021.9568818
TI - Augmenting GRIPS with heuristic sampling for planning feasible trajectories of a car-like robot
T2 - 2021 10th European Conference on Mobile Robots, ECMR 2021 - Proceedings
AU - Angulo, Brian
AU - Radionov, Ivan
AU - Yakovlev, Konstantin
PY - 2021
DA - 2021/08/01 00:00:00
ER -
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@inproceedings{2021_Angulo,
author = {Brian Angulo and Ivan Radionov and Konstantin Yakovlev},
title = {Augmenting GRIPS with heuristic sampling for planning feasible trajectories of a car-like robot},
year = {2021},
month = {aug}
}
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