Results 11 to 20 of about 6,421 (163)
Reactive collision avoidance for navigation with dynamic constraints [PDF]
IEEE/RSJ International Conference on Intelligent Robots and System, 2003 We address the problem of applying reactive navigation methods for collision avoidance to systems where the dynamics cannot be neglected: mobile robots with slow dynamic capabilities, or systems working at high speeds. Rather than embedding the motion constraints when designing a navigation method, we propose to introduce the robot dynamic constraints ...
Javier Minguez +2 more
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Journal of Marine Science and Engineering, 2022 In the last few years, autonomous ships have attracted increasing attention in the maritime industry. Autonomous ships with an autonomous collision avoidance capability are the development trend for future ships. In this study, a ship manoeuvring process
Ke Zhang +6 more
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Journal of Marine Science and Engineering, 2022 The problem of ship collision avoidance path planning is one of the key problems in the ship motion control field. Aiming at the high computational time problem of path planning in multi-ship encounter situations and the impact of the target ship’s ...
Jiagen Yu, Zhengjiang Liu, Xianku Zhang
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Trajectory Tracking and Collision Avoidance Switching Control for Multi-UAV Based on DMPC [PDF]
Hangkong bingqi, 2023 Multi-unmanned aerial vehicle (UAV) system often encounters sudden static or dynamic obstacle threats during flight. How to realize obstacle avoidance is one of the key problems that must be solved for multi-UAV system.
Zhao Chaolun, Dai Shaowu, He Yunfeng, Liu Shuai, Zhao Guorong
doaj +1 more source
Multi-ship Coordinated Collision Avoidance Decision Based on Improved Twin Delayed Deep Deterministic Policy Gradient [PDF]
Jisuanji kexue, 2023 At present,most models of collision avoidance algorithms take ships as single agent to make collision avoidance decisions,without considering the coordinated avoidance between ships.In the scenario of multi-ship meeting,it will lead to poor avoidance ...
HUANG Renxian, LUO Liang, YANG Meng, LIU Weiqin
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Collision Avoidance of 3-Dimensional Objects in Dynamic Environments
CoRR, 2022 Achieving collision avoidance between moving objects is an important objective while determining robot trajectories. In performing collision avoidance maneuvers, the relative shapes of the objects play an important role. The literature largely models the shapes of the objects as spheres, and this can make the avoidance maneuvers very conservative ...
Kashish Dhal +2 more
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Nonlinear MPC for Collision Avoidance and Control of UAVs With Dynamic Obstacles [PDF]
IEEE Robotics and Automation Letters, 2020 8 pages, 10 ...
Björn Lindqvist +3 more
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A reactive collision avoidance algorithm for vehicles with underactuated dynamics [PDF]
2017 IEEE 56th Annual Conference on Decision and Control (CDC), 2017 This paper presents a reactive collision avoidance algorithm, which avoids both static and moving obstacles by keeping a constant avoidance angle between the vehicle velocity vector and the obstacle. In particular, we consider marine vehicles with underactuated sway dynamics, which cannot be directly controlled. This gives an underactuated component in
Martin S. Wiig +2 more
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Path Planning of an Unmanned Surface Vessel Based on the Improved A-Star and Dynamic Window Method
Journal of Marine Science and Engineering, 2023 In order to ensure the safe navigation of USVs (unmanned surface vessels) and real-time collision avoidance, this study conducts global and local path planning for USVs in a variable dynamic environment, while local path planning is proposed under the ...
Shunan Hu +3 more
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Dynamic Collision and Deadlock Avoidance for Multiple Robotic Manipulators
IEEE Access, 2022 A flexible operation of multiple robotic manipulators operating in a dynamic environment requires online trajectory planning to ensure collision-free trajectories. In this work, we propose a real-time capable motion control algorithm, based on nonlinear model predictive control, which accounts for static and dynamic obstacles. The proposed algorithm is
Nigora Gafur +3 more
openaire +3 more sources