Results 1 to 10 of about 3,384 (183)

Automatic berthing of unmanned surface vessels with predetermined performance [PDF]

Scientific Reports, 2023
To solve the problem of ship automatic berthing control due to unknown time-varying disturbance and dynamic uncertainty of model parameters, an automatic berthing control law based on predefined performance time function is proposed.
Qiwen Wang, Qiang Zhang, Enrui Zhao, Yang Liu, Yan Zhang   +4 more
doaj   +4 more sources

Unsupervised Port Berth Localization from Automatic Identification System Data [PDF]

Sensors
Port berthing sites are regions of high interest for monitoring and optimizing port operations. Data sourced from the Automatic Identification System (AIS) can be superimposed on berths, enabling their real-time monitoring and revealing long-term ...
Andreas Hadjipieris, Neofytos Dimitriou, Ognjen Arandjelović   +2 more
doaj   +4 more sources

Identification and analysis of ship waiting behavior outside the port based on AIS data [PDF]

Scientific Reports, 2023
Port congestion caused by ship detention is an important reason for the obstruction of the shipping supply chain. In this paper, a method of excavating the ship waiting behavior outside the port is proposed based on the automatic identification system ...
Jianwen Ma, Yue Zhou, Zhaoxin Zhu
doaj   +2 more sources

Improved Immune Moth–Flame Optimization Based on Gene Correction for Automatic Reverse Parking [PDF]

Sensors
During the process of reverse parking, it is difficult to achieve the ideal reference trajectory while avoiding collision. In this study, with the aim of establishing reference trajectory optimization for automatic reverse parking that smooths and ...
Gang Liu, Xinli Xu, Longda Wang
doaj   +2 more sources

Development of Automatic Berthing Support Program for Autonomous Ships

Applied Sciences
Research on autonomous ships has primarily focused on developing response technologies for navigation from pilot station to pilot station. This study developed an automatic berthing support program that calculates the necessary thruster output values for
Byung-Sun Kang, Chang-Hyun Jung, Keewon Kim, Hyunwoo Kim, Jin-Soo Kim, Dae-Hae Kim   +5 more
doaj   +2 more sources

Consistently Trained Artificial Neural Network for Automatic Ship Berthing Control [PDF]

TransNav, 2015
In this paper, consistently trained Artificial Neural Network controller for automatic ship berthing is discussed. Minimum time course changing manoeuvre is utilised to ensure such consistency and a new concept named ?virtual window? is introduced.
Yaseen Adnan Ahmed, Kazuhiko Hasegawa
doaj   +2 more sources

Graph Search-Based Path Planning for Automatic Ship Berthing

Journal of Marine Science and Engineering
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, Zhihuan Hu, Ziheng Yang, Weidong Zhang   +3 more
doaj   +2 more sources

State-of-the-Art Review and Future Perspectives on Maneuvering Modeling for Automatic Ship Berthing

Journal of Marine Science and Engineering, 2023
Automatic berthing is at the top level of ship autonomy; it is unwise and hasty to hand over the control initiative to the controller and the algorithm without the foundation of the maneuvering model.
Song Zhang, Qing Wu, Jialun Liu, Yangying He, Shijie Li   +4 more
doaj   +1 more source

Ship Autonomous Berthing Simulation Based on Covariance Matrix Adaptation Evolution Strategy

Journal of Marine Science and Engineering, 2023
Existing research on auto-berthing of ships has mainly focused on the design and implementation of controllers for automatic berthing. For the real automatic docking processes, not only do external environmental perturbations need to be taken into ...
Guoquan Chen, Jian Yin, Shenhua Yang
doaj   +1 more source

Path following algorithm application to automatic berthing control [PDF]

Journal of Marine Science and Technology, 2020
AbstractThis paper aims to verify a new automatic berthing system using a path following algorithm. Berthing operation is one of the most burdensome tasks for crews among several ship operations. The maneuverability of a ship at low speed during berthing operation deteriorates and becomes more vulnerable to disturbances such as wind.
Ryohei Sawada, Koichi Hirata, Yasushi Kitagawa, Eiko Saito, Michio Ueno, Katsuji Tanizawa, Junji Fukuto   +6 more
openaire   +1 more source