Results 11 to 20 of about 142,166 (292)
USV Dynamic Accurate Obstacle Avoidance Based on Improved Velocity Obstacle Method
Electronics, 2022 Unmanned surface vehicle (USV) path planning is a crucial technology for achieving USV autonomous navigation. Under global path planning, dynamic local obstacle avoidance has become the primary focus for safe USV navigation. In this study, a USV autonomous dynamic obstacle avoidance method based on the enhanced velocity obstacle method is proposed in ...
Jia Wang +4 more
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Collision-Avoidance Decision System for Inland Ships Based on Velocity Obstacle Algorithms
Journal of Marine Science and Engineering, 2022 Due to the complex hydrology and narrow channels of inland rivers, ship collision accidents occur frequently. The traditional collision-avoidance algorithms are often aimed at sea areas, and not often at inland rivers. To solve the problem of inland-ship
Guangyu Zhang +4 more
doaj +3 more sources
IEEE Access, 2020 It is challenging for a mobile robot to avoid moving obstacles in dynamic environments. Traditional velocity obstacle methods do not fully consider the obstacles moving with the speeds larger than the maximum speed of the robot.
Tianye Xu +4 more
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AgriEngineering, 2022 Turbulence phenomena created around a greenhouse due to different wind loads are key factors in its structural design and significantly affect the ventilation rates through its side and roof openings.
Georgios Partheniotis +4 more
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Application of Improved Blocked-Off Method to Simulate the Interacting Influences of Obstacle Shape and Wall Velocity on the Turbulent Mixed Convection Flow in a Trapezoidal Cavity [PDF]
International Journal of Advanced Design and Manufacturing Technology, 2022 In the current research, interaction influences of obstacle shape and top wall velocity on the hydrothermal behaviours of the turbulent mixed convection flow in a trapezoidal cavity are numerically simulated.
Meysam Atashafrooz
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Vortex shedding frequency of a moving obstacle in a Bose–Einstein condensate
New Journal of Physics, 2022 We experimentally investigate the periodic vortex shedding dynamics in a highly oblate Bose–Einstein condensate using a moving penetrable Gaussian obstacle.
Younghoon Lim +4 more
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A Velocity Obstacle-Based Real-Time Regional Ship Collision Risk Analysis Method
Journal of Marine Science and Engineering, 2021 Maritime accidents such as ship collisions pose continuous risks to individuals and society with due to their severe consequences on human life, economic and environmental losses, etc.
Pengfei Chen, Mengxia Li, Junmin Mou
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Realtime Multilevel Crowd Tracking Using Reciprocal Velocity Obstacles [PDF]
2014 22nd International Conference on Pattern Recognition, 2014 We present a novel, realtime algorithm to compute the trajectory of each pedestrian in moderately dense crowd scenes. Our formulation is based on an adaptive particle filtering scheme that uses a multi-agent motion model based on velocity-obstacles, and takes into account local interactions as well as physical and personal constraints of each ...
Bera, Aniket, Manocha, Dinesh
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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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Car collision avoidance with velocity obstacle approach [PDF]
, 2019 The obstacle avoidance maneuver is required for an autonomous vehicle. It is essential to define the system's performance by evaluating the minimum reaction times of the vehicle and analyzing the probability of success of the avoiding operation.
Antonelli, Dario +3 more
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