Results 11 to 20 of about 883,519 (260)

Automatic collision avoidance of ships [PDF]

open access: yesProceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment, 2008
One of the key elements in automatic simulation of ship manoeuvring in confined waterways is route finding and collision avoidance. This paper presents a new practical method of automatic trajectory planning and collision avoidance based on an artificial
Lee, B.S., Han, D., Xue, Y.
core   +8 more sources

Multi-ship Coordinated Collision Avoidance Decision Based on Improved Twin Delayed Deep Deterministic Policy Gradient [PDF]

open access: yesJisuanji 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
doaj   +2 more sources

A Construction Method of a Sequential Decision Chain for Unmanned-Ship Autonomous Collision Avoidance Based on Human-Like Thinking

open access: yesJournal of Marine Science and Engineering, 2023
As one of the key technologies restricting the development of intelligent ships, autonomous collision avoidance has attracted the attention of many scholars all over the world.
Xiaoyuan Wang   +6 more
doaj   +2 more sources

Step-by-Step Multi-Ship Collision Avoidance Navigation Path Planning Based on Particle Swarm Optimization

open access: yesJournal of Control Science and Engineering, 2022
In order to solve the problem that it is difficult to combine path planning with navigation rules in the process of multi-ship collision avoidance in wide waters, a step-by-step multi-ship collision avoidance path planning algorithm is proposed in this ...
Canglong Zhao
doaj   +2 more sources

Early Warning Method and Model of Inland Ship Collision Risk Based on Coordinated Collision-Avoidance Actions

open access: yesJournal of Advanced Transportation, 2020
To reduce the occurrence of ship collisions, immediate danger, and close-quarters situations in narrow inland waterways, a step-by-step early warning system for ship collision-avoidance actions was developed, along with an early warning method and model ...
Zhiyou Cheng, Yaling Li, Bing Wu
doaj   +2 more sources

Multi-Ship Collision Avoidance Decision-Making Based on Collision Risk Index

open access: yesJournal of Marine Science and Engineering, 2020
Most maritime accidents are caused by human errors or failures. Providing early warning and decision support to the officer on watch (OOW) is one of the primary issues to reduce such errors and failures. In this paper, a quantitative real-time multi-ship
Yingjun Hu   +4 more
doaj   +2 more sources

Ship collision avoidance route planning using CRI-based A* algorithm

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2023
This study presents a novel ship route planning algorithm that takes into account both operational economy and safety by integrating the A * algorithm with a collision avoidance algorithm that evaluates the Collision Risk Index (CRI) between the own ship
Chanhee Seo   +5 more
semanticscholar   +2 more sources

DCA-Based Collision Avoidance Path Planning for Marine Vehicles in Presence of the Multi-Ship Encounter Situation

open access: yesJournal 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
doaj   +2 more sources

Determination of Ship Collision Avoidance Timing Using Machine Learning Method [PDF]

open access: yesSustainability
The accurate timing for collision avoidance actions is crucial for preventing maritime collisions. Traditional methods often rely on collision risk assessments, using quantitative indicators like the Distance to the Closest Point of Approach (DCPA) and ...
Yu Zhou   +6 more
semanticscholar   +2 more sources

A ship collision avoidance system for human-machine cooperation during collision avoidance

open access: yesOcean Engineering, 2020
Maritime Autonomous Surface Ships (MASS) attract increasing attention in recent years. Researchers aim at developing fully autonomous systems that replace the role of human operators.
Huang, Y. (author)   +7 more
core   +4 more sources

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