Risk-aware Control for Robots with Non-Gaussian Belief Spaces
Risk-aware Control for Robots with Non-Gaussian Belief Spaces
复制标题
非高斯置信空间机器人的风险感知控制
DOI:
10.48550/arxiv.2309.12857
复制
发表时间:
2023
期刊:
影响因子:
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通讯作者:
Jana Tumova
中科院分区:
文献类型:
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作者:
Matti Vahs;Jana Tumova
This paper addresses the problem of safety-critical control of autonomous robots, considering the ubiquitous uncertainties arising from unmodeled dynamics and noisy sensors. To take into account these uncertainties, probabilistic state estimators are often deployed to obtain a belief over possible states. Namely, Particle Filters (PFs) can handle arbitrary non-Gaussian distributions in the robot's state. In this work, we define the belief state and belief dynamics for continuous-discrete PFs and construct safe sets in the underlying belief space. We design a controller that provably keeps the robot's belief state within this safe set. As a result, we ensure that the risk of the unknown robot's state violating a safety specification, such as avoiding a dangerous area, is bounded. We provide an open-source implementation as a ROS2 package and evaluate the solution in simulations and hardware experiments involving high-dimensional belief spaces.
DOI:
10.23919/acc.2019.8814901
发表时间:
2019
期刊:
American Control Conference (ACC
影响因子:
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作者:
Clark, A.
通讯作者:
Clark, A.
DOI:
--
发表时间:
2021
期刊:
--
影响因子:
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作者:
Barbosa F
通讯作者:
Barbosa F