Results 11 to 20 of about 27,418 (200)

CFD Simulation of the Safety of Unmanned Ship Berthing under the Influence of Various Factors

open access: yesApplied Sciences, 2021
The safety of unmanned ship berthing is of paramount importance. In order to explore the influence of wind and wave coupling, a berthing computational fluid dynamics (CFD) model was established, and the characteristics of speed field, pressure field, and
Guoquan Xiao   +5 more
doaj   +3 more sources

A Quantitative Evaluation Method for Obstacle Avoidance Performance of Unmanned Ship

open access: yesJournal of Marine Science and Engineering, 2021
In response to the urgent need for quantitative evaluation of the obstacle avoidance performance of an unmanned ship, a quantitative evaluation model is established to evaluate quantitatively the obstacle perception performance, static obstacle avoidance
Guoquan Xiao   +3 more
doaj   +3 more sources

The path planning of collision avoidance for an unmanned ship navigating in waterways based on an artificial neural network

open access: yesNonlinear Engineering, 2022
Designing a safe, collision-free navigation route is critical for unmanned ships. This article applies the path planning method to the generation of collision avoidance paths for unmanned ships.
Wang Renqiang   +4 more
doaj   +2 more sources

Unmanned Ships: Navigation and More [PDF]

open access: yesGiroskopiya i Navigatsiya, 2021
The paper briefly overviews the development of unmanned surface ship technology over the last 20 years. Main problems of their navigation equipment and algorithms, and their compliance with the International Maritime Organization requirements are discussed.
openaire   +1 more source

The Human Element and Autonomous Ships [PDF]

open access: yesTransNav, 2016
The autonomous ship technology has become a ?hot? topic in the discussion about more efficient, environmentally friendly and safer sea transportation solutions.
Sauli Ahvenjärvi
doaj   +1 more source

A Comparative Assessment of Collision Risk of Manned and Unmanned Vessels

open access: yesJournal of Marine Science and Engineering, 2020
It is expected that the prototypes of unmanned merchant ships will be deployed in the next few years. However, there is no specific research on whether the introduction of unmanned ships will reduce the risk of ship collision accidents in which ...
Qing Wu   +4 more
doaj   +1 more source

Development of a Hybrid Solar and Wind-Powered Long-Range Unmanned Ocean Stereo Exploration Vessel

open access: yesShanghai Jiaotong Daxue xuebao, 2021
Aimed at the problems of unmanned marine exploration vessels, such as the short voyage time and the limited sensing ability caused by sensor failure under complex marine environments, a long-range unmanned ocean-air stereo exploration vessel driven by ...
YAO Tiancheng   +6 more
doaj   +1 more source

The method of comprehensive optimization analysis for catamaran unmanned vehicle [PDF]

open access: yesITM Web of Conferences, 2022
In order to obtain the optimal design of catamaran unmanned vehicle type, based on a USV type, and a mathematical model is created. Use the form of the product of the power exponential function for each performance objective function, and then combine ...
Ding Wei   +4 more
doaj   +1 more source

Importance-based Resilience Assessment and Optimization of Unmanned Ship Swarm System [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences
Based on the unmanned ship swarm system, a resilience model for unmanned ship swarms is proposed by comprehensively considering the preventive indicators, robustness indicators, recoverability indicators, and reconfigurability indicators of the swarm ...
Hongyan Dui, Kailong Zhang, Wanyun Xia
doaj   +1 more source

Conversion Timing of Seafarer's Decision-making for Unmanned Ship Navigation [PDF]

open access: yesTransNav, 2017
The aim of this study is to construct an unmanned ship swarms monitoring model to improve autonomous decision-making efficiency and safety performance of unmanned ship navigation.
Ruolan Zhang, Masao Furusho
doaj   +1 more source

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