Results 21 to 30 of about 883,519 (260)

An Improved VO Method for Collision Avoidance of Ships in Open Sea

Journal of Marine Science and Engineering
In order to effectively deal with collisions in various encounter situations in open water environments, a ship collision avoidance model was established, and multiple constraints were introduced into the velocity obstacle method, a method to determine ...
Mao Zheng, Kehao Zhang, Bing Han, Bowen Lin, Haiming Zhou, Shigan Ding, Tianyue Zou, Yougui Yang   +7 more
doaj   +3 more sources

COLREGs-compliant ship collision avoidance strategy based on proximal policy optimization algorithm

Frontiers in Marine Science
The safe and efficient collision avoidance of multiple ships is essential for maritime navigation and intelligent shipping systems. In this paper, we propose a novel COLREGs-compliant multi-ship collision avoidance strategy based on deep reinforcement ...
Qiaosheng Zhao, Qiaosheng Zhao, Tianyu Yang, Chaoxu Mu, Qiyu Chen, Tao Luo, Mingkai Liu, Xin Wang   +7 more
doaj   +2 more sources

Collision Avoidance for Maritime Autonomous Surface Ships Based on Model Predictive Control Using Intention Data and Quaternion Ship Domain

Journal of Marine Science and Engineering
With the increasing proportion of ships in logistics and the growing prosperity of traffic in maritime, negotiation and cooperative collision avoidance between ships is becoming more and more essential for navigational safety. This paper proposes a Model
Hanxuan Zhang, Yuchi Cao, Qihe Shan, Yukun Sun   +3 more
doaj   +2 more sources

Ship Path Following and Collision Avoidance Based on Vector Field Guidance Law and Model Predictive Control

Shanghai Jiaotong Daxue xuebao
A model predictive control (MPC) method based on the vector field guidance law is proposed to improve the effectiveness of path following and collision avoidance for ships.
HE Yu, OUYANG Zilu, ZOU Lu, CHEN Weimin, ZOU Zaojian
doaj   +2 more sources

Bayesian Inference of Collision Avoidance Intent During Ship Encounters

IEEE Transactions on Automation Science and Engineering
Ship collision accidents frequently cause casualties and significant property losses. These collisions mainly occur by incorrectly interpreting the intents of other ships’ navigators. However, inferring the avoidance intents of other ships is challenging,
Cheng-Feng Jia, Jie Ma, B. de Vries, Wouter M. Kouw   +3 more
semanticscholar   +4 more sources

Study on scenario modeling method for collision avoidance test in inland waterway

Zhongguo Jianchuan Yanjiu, 2023
ObjectivesThe aim of this paper is to obtain test scenarios of autonomous collision avoidance for inland waterway ships by modeling. MethodsStarting with the automatic identification system (AIS) and radar data collection and fusion method, a ship ...
Mao ZHENG, Shigan DING, Jiafen LAN, Xiumin CHU   +3 more
doaj   +1 more source

Collision Avoidance Decision Method for Unmanned Surface Vehicle Based on an Improved Velocity Obstacle Algorithm

Journal of Marine Science and Engineering, 2022
To ensure navigation safety, unmanned surface vehicles (USVs) need to have autonomous collision avoidance capability. A large number of studies on ship collision avoidance are available, and most of these papers assume that the target ships keep straight
Yun Li, Haiyu Zhang
doaj   +1 more source

Ship Collision Avoidance Path Planning Based on Dynamic Domain Potential Field

水下无人系统学报, 2023
In view of the limitations of traditional artificial potential field collision avoidance path planning in terms of collision avoidance distance and collision avoidance opportunity, a dynamic ship collision avoidance path planning method based on an ...
Shuo SUN, Shaolong YANG, Xianbo XIANG, Xue FAN   +3 more
doaj   +1 more source

A conflict cluster-based method for collision avoidance decision-making in multi-ship encounter situations [PDF]

, 2023
During the process of collision avoidance, especially in a multi-ship encounter situation, the dynamic interactions among individual ships impose a significant impact on collision avoidance decision-making.
Liu, K, Xin, X, Yuan, Z, Wu, X, Zhuang, S, Zhou, Y, Yang, X   +6 more
core   +2 more sources

A Novel Decision Support Methodology for Autonomous Collision Avoidance Based on Deduction of Manoeuvring Process

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, Liwen Huang, Xiao Liu, Jiahao Chen, Xingya Zhao, Weiguo Huang, Yixiong He   +6 more
doaj   +1 more source