Results 71 to 80 of about 787,118 (191)
Berthing Trajectory Tracking of Underactuated Surface Vehicle Based on NMPC and Position Estimation
In order to realize waypoint-based automatic berthing alongside or astern, a generation algorithm of dynamic virtual ships is proposed to guide the underactuated surface vehicle (USV). In this paper, a nonlinear model predictive control (NMPC) problem is
Zuxin Wu, Baigang Zhao, Xu Han, Di Lu
doaj +1 more source
A Systematic Study On Automatic Berthing Control (1st Report)
An architecture is proposed for an expert system for automatic berthing control. It is designed to consist of a knowledge base and four subsystems, namely, subsystems for planning, plan executing, knowledge management and berthing control. The knowledge base shared by all subsystems contains production rules, most of which are based on the experience ...
Koyam, Takeo, Yan, Jin, Huan, Jin Kui
openaire +2 more sources
This paper proposes an automatic identification system (AIS) data‐driven method for multi‐area continuous berth allocation, utilizing a novel pair barracuda swarm optimisation algorithm to minimize operational costs. The method dynamically incorporates real‐time ship data to address uncertainties and is validated through comprehensive simulations and a
Shi Binghua +5 more
wiley +1 more source
(1) A dynamic decision‐making model for ship berthing is proposed to provide real‐time assistance to shipmasters and pilots. (2) The proposed model considers the kinematic parameters related to ship berthing. (3) The proposed model employs a structured three‐layer fuzzy inference system to derive berthing decision‐making results. ABSTRACT Ship berthing
Diao Han, Yang Wang, Haitong Xu, Bing Wu
wiley +1 more source
ObjectiveThis study addresses the adaptive automatic berthing control problem for underactuated vessels, considering both internal/external uncertainties and false data injection (FDI) attacks.
Chun LI, Guibing ZHU, Qiang ZHANG
doaj +1 more source
Harbor tugs play a crucial role in port operations, including pushing, towing, and assisting the berthing of large cargo vessels. However, autonomous berthing remains a complex and demanding task, as it requires precise control of speed, heading, and ...
Zhilin Dong +3 more
doaj +1 more source
Graph Search-Based Path Planning for Automatic Ship Berthing
Ship berthing is one of the most challenging operations for crews, involving optimal trajectory generation and intricate harbor maneuvering at low speed. In this paper, we present a practical path-planning method that generates smooth trajectories for an
Xiaocheng Liu +3 more
doaj +1 more source
Auto-Berthing Control of Marine Vessels Under Cyber Attacks
This paper studies the automatic berthing control of an unmanned surface vessel under cyber attacks. An adaptive neural-network-based fault-tolerant control method is developed. Unknown vessel dynamics, external disturbances, measurement noise, and cyber
Jianqiang Shi +6 more
doaj +1 more source
Ship Manoeuvring Performance Experiments Using a Free Running Model Ship [PDF]
In this paper, a 3m-class free running model ship will be introduced with its manoeuvring performance experiments. The results of turning circle test and zig-zag test will be explained.
Namkyun Im, Jeong-Ho Seo
doaj
Coastal water accidents have occurred frequently in recent years, and human factors are still the main cause of these accidents. The purpose of this study is to provide a better and safer solution for the symmetry problem of unmanned surface vessels ...
Zaiji Piao +3 more
core +1 more source

