A Passive Navigation Planning Algorithm for Collision-free Control of Mobile Robots
@article{Tiseo2020APN, title={A Passive Navigation Planning Algorithm for Collision-free Control of Mobile Robots}, author={Carlo Tiseo and Vladimir Ivan and Wolfgang Xaver Merkt and Ioannis Havoutis and Michael N. Mistry and Sethu Vijayakumar}, journal={2021 IEEE International Conference on Robotics and Automation (ICRA)}, year={2020}, pages={8223-8229} }
Path planning and collision avoidance are challenging in complex and highly variable environments due to the limited horizon of events. In literature, there are multiple model- and learning-based approaches that require significant computational resources to be effectively deployed and they may have limited generality. We propose a planning algorithm based on a globally stable passive controller that can plan smooth trajectories using limited computational resources in challenging environmental…
9 Citations
Robust and Dexterous Dual-arm Tele-Cooperation using Fractal Impedance Control
- EngineeringArXiv
- 2021
The results confirmed that the proposed method can enhance the robustness significantly and allow switching tasks freely between manipulation, human-robot cooperation and teleoperation without the need of extensive re-tuning of the controllers.
Geometrical postural optimisation of 7-DoF limb-like manipulators
- BiologyEngineering Research Express
- 2022
A geometrical solution to the postural optimisation of 7-DoF limbs-like mechanisms, which are robust to singularities and computationally efficient and can find application in developing efficient and robust interaction controllers that could be applied in computational neuroscience and robotics.
Harmonic Passive Motion Paradigm
- BiologybioRxiv
- 2021
This work presents a hierarchical architecture of semi-autonomous controllers that can control the redundant kinematics of the limbs during dynamic interaction, even with delays comparable to the nervous system, and indicates that the architecture can generalise the motor strategies to different environmental conditions.
Robust Impedance Control for Dexterous Interaction Using Fractal Impedance Controller with IK-Optimisation
- Computer Science2022 International Conference on Robotics and Automation (ICRA)
- 2022
This work proposed a hierarchical control architecture for robot manipulators and provided capabilities of reproducing human-like motions during unknown interaction dynamics, showing that the reproduced end-effector trajectories can preserve the main characteristics of the initial human motion recorded via a motion capture system, and are robust against external perturbations.
Fine Manipulation and Dynamic Interaction in Haptic Teleoperation
- EngineeringArXiv
- 2021
The proposed work improves the performances of teleoperation architecture based on Fractal Impedance Controller, by integrating the most recent manipulation architecture in the haptic teleoperation pipeline, and improves dynamic interactions during fine manipulation without renouncing the robustness of the FIC controller.
Theoretical Evidence Supporting Harmonic Reaching Trajectories
- Biology2021 10th International IEEE/EMBS Conference on Neural Engineering (NER)
- 2021
It is observed that even under ideal conditions (i.e., absence of delays and noise) the executed trajectories are similar to a minimum jerk trajectory; thus, supporting the thesis that the human brain might plan harmonic trajectories.
Exploiting Spherical Projections To Generate Human-Like Wrist Pointing Movements
- Biology2021 43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)
- 2021
The results demonstrate how the path-independent behaviour observed for the wrist pointing task can be explained by spherical projections of the planar tasks, and the combination of the projections with the fractal impedance controller eliminates the nonlinear inverse problem, which reduces the computational cost compared to previous methodologies.
Geometric Fabrics: Generalizing Classical Mechanics to Capture the Physics of Behavior
- Computer ScienceIEEE Robotics and Automation Letters
- 2022
This work develops the theory of fabrics and presents both a collection of controlled experiments examining their theoretical properties and a set of robot system experiments showing improved performance over a well-engineered and hardened implementation of RMPs, the current state-of-the-art in controller design.
HapFIC: An Adaptive Force/Position Controller for Safe Environment Interaction in Articulated Systems
- EngineeringIEEE Transactions on Neural Systems and Rehabilitation Engineering
- 2021
An adaptive force/position controller is proposed that exploits the fractal impedance controller’s passivity and non-linearity to execute a finite search algorithm using the force feedback signal from the sensor at the end-effector and can robustly control the interaction with objects of different dynamics.
References
SHOWING 1-10 OF 27 REFERENCES
Robust Online Motion Planning with Regions of Finite Time Invariance
- Computer Science, MathematicsWAFR
- 2012
A trajectory library approach is taken by designing controllers that stabilize the nominal trajectories in the library and precomputing regions of finite time invariance (”funnels”) for the resulting closed loop system that leverage sums-of-squares programming in order to efficiently compute funnels which take into account bounded disturbances and uncertainty.
Safe and Compliant Control of Redundant Robots Using a Stack of Passive Task-Space Controllers
- Computer ScienceArXiv
- 2020
This work proposes a compliant control method for redundant manipulators based on a stack of multiple passive task-space controllers that achieves sub-centimeter tracking performance during dynamic demanding tasks with fast-changing references, while remaining safe to interact with and robust to singularities.
Dynamic Obstacle Avoidance Using Bayesian Occupancy Filter and Approximate Inference
- Computer ScienceSensors
- 2013
The goal of this paper is to solve the problem of dynamic obstacle avoidance for a mobile platform by using the stochastic optimal control framework to compute paths that are optimal in terms of…
Robust Real-time UAV Replanning Using Guided Gradient-based Optimization and Topological Paths
- Computer Science2020 IEEE International Conference on Robotics and Automation (ICRA)
- 2020
A replanning method based on GTO addressing the issue of local minima systematically is proposed, which outplays state-of-the-art methods regarding Replanning success rate and optimality.
Online Optimal Impedance Planning for Legged Robots
- Computer Science2019 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
- 2019
An optimization algorithm for online planning of the Cartesian robot impedance to adapt to changes in the task, robot configuration, expected disturbances, external environment and desired performance, without employing any direct force measurements is introduced.
Robust shared autonomy for mobile manipulation with continuous scene monitoring
- Computer Science2017 13th IEEE Conference on Automation Science and Engineering (CASE)
- 2017
This work presents a fully integrated system for reliable grasping and manipulation using dense visual mapping, collision-free motion planning, and shared autonomy that is able to automatically recover from a variety of disturbances and fall back to the operator if stuck or if it cannot otherwise guarantee safety.
Continuous-Time Collision Avoidance for Trajectory Optimization in Dynamic Environments
- Computer Science2019 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
- 2019
This work introduces a computationally inexpensive continuous-time collision avoidance term in presence of static and moving obstacles based on conservative advancement and harmonic potential fields and outperforms discrete collision avoidance based on signed distance constraints resulting in smooth motions with continuous- time safety while planning in discrete time.
An Optimization-Based Locomotion Controller for Quadruped Robots Leveraging Cartesian Impedance Control
- EngineeringFrontiers in Robotics and AI
- 2020
This paper presents a locomotion controller using Cartesian impedance control to coordinate tracking performance and desired compliance, along with Quadratic Programming (QP) to satisfy friction cone constraints, unilateral constraints, and torque limits.
UAV online path planning algorithm in a low altitude dangerous environment
- Computer ScienceIEEE/CAA Journal of Automatica Sinica
- 2015
A novel method to solve the problem of UAV online path-planning in a low altitude dangerous environment with dense obstacles, static threats (STs) and dynamic threats (DTs) based on rapidly-exploring random tree (RRT) to predict the threat of DT.
Towards Shared Autonomy Applications using Whole-body Control Formulations of Locomanipulation
- Computer Science2019 IEEE 15th International Conference on Automation Science and Engineering (CASE)
- 2019
This work introduces a high-performance omnidirectional mobile manipulation platform with integrated whole-body control, real-time collision-free whole- body motion planning, and perception and deploys and evaluates the solution in field trials on an industrial oil and gas training facility on a sensor placement and manipulation task.