Results 21 to 30 of about 6,421 (163)

Autonomous Obstacle Avoidance Algorithm for Unmanned Surface Vehicles Based on an Improved Velocity Obstacle Method

open access: yesISPRS International Journal of Geo-Information, 2021
Focusing on the collision avoidance problem for Unmanned Surface Vehicles (USVs) in the scenario of multi-vessel encounters, a USV autonomous obstacle avoidance algorithm based on the improved velocity obstacle method is proposed.
Jia Ren, Jing Zhang, Yani Cui
doaj   +1 more source

Collision avoidance in pedestrian dynamics

open access: yes2015 54th IEEE Conference on Decision and Control (CDC), 2015
There is a lot of experimental evidence that collision avoidance is among the main driving principles in pedestrian dynamics: individuals actively anticipate the future to predict a possible collision time and adjust their velocity accordingly, see [1].
Festa, Adriano, Wolfram, Marie-Therese
openaire   +2 more sources

Intelligent collision avoidance decision-making method for unmanned ships based on driving practice

open access: yesZhongguo Jianchuan Yanjiu, 2021
Objective In order to realize the intelligent navigation and autonomous collision avoidance of unmanned ships in coastal areas, an intelligent collision avoidance decision-making method based on driving practice is proposed.
Zhiguo DING   +4 more
doaj   +1 more source

Collision Avoidance Path Planning for Vehicles Combining MPC and CACC Controllers

open access: yesIEEE Access, 2023
The vehicle collision avoidance system has problems such as poor emergency collision avoidance ability and susceptibility to noise interference. Therefore, this study adopts a vehicle tracking model that integrates dynamic constraints and a two car ...
Qingde Zeng, Bin Liu
doaj   +1 more source

Ship Collision Avoidance Decision Model and Simulation Based on Collision Circle [PDF]

open access: yesTransNav, 2019
In order to give consideration to both comprehensive evaluation and efficient decision-making in collision avoidance decision-making process, a collision avoidance decision-making model based on collision circle is proposed by introducing the concept of ...
Jifeng Zhang, Qinyou Hu, Bingjun Liao
doaj   +1 more source

Collision-Avoidance Decision System for Inland Ships Based on Velocity Obstacle Algorithms

open access: yesJournal 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   +1 more source

Collision avoidance for autonomous ship using deep reinforcement learning and prior-knowledge-based approximate representation

open access: yesFrontiers in Marine Science, 2023
Reinforcement learning (RL) has shown superior performance in solving sequential decision problems. In recent years, RL is gradually being used to solve unmanned driving collision avoidance decision-making problems in complex scenarios.
Chengbo Wang   +6 more
doaj   +1 more source

Collision Avoidance Algorithm for USV Based on Rolling Obstacle Classification and Fuzzy Rules

open access: yesJournal of Marine Science and Engineering, 2021
Dynamic collision avoidance between multiple vessels is a task full of challenges for unmanned surface vehicle (USV) movement, which has high requirements on real-time performance and safety.
Lifei Song   +4 more
doaj   +1 more source

Experimental characterization of collision avoidance in pedestrian dynamics

open access: yesPhysical Review E, 2016
In the present paper, the avoidance behavior of pedestrians was characterized by controlled experiments. Several conflict situations were studied considering different flow rates and group sizes in crossing and head-on configurations. Pedestrians were recorded from above, and individual two-dimensional trajectories of their displacement were recovered ...
Parisi, Daniel Ricardo   +2 more
openaire   +3 more sources

Intelligent Dynamic Collision Avoidance Strategy of Hydrogen Fuel Cell Unmanned Ship via Improved Fusion Dynamic Window Method

open access: yesIEEE Access, 2023
In this study, a novel fusion dynamic window method is proposed. The safety field obstacle model of obstacle ships is explored to improve the obstacle collection of speed obstacle method, so that the collision avoidance process of Hydrogen Fuel Cell ...
Zimin Wang
doaj   +1 more source

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