Results 21 to 30 of about 2,278 (100)

Robust control method for automatic berthing of unmanned ships based on weight optimal loop shaping

Applied Ocean Research
Automatic berthing is one of the key functions for autonomous navigation of unmanned ships, and it is an important technology that assists and ensures ships complete their voyage tasks.
Kai Feng, Xiaoyuan Wang, Jingheng Wang, Yufeng Liang, Quanzheng Wang, Junyan Han, Longfei Chen, Cheng Shen, Bin Wang   +8 more
doaj   +1 more source

Fuzzy Logic-Based Decision-Making Method for Ultra-Large Ship Berthing Using Pilotage Data

Journal of Marine Science and Engineering
As seafarers are involved in Maritime Autonomous Surface Ships (MASS), except for those in the fourth level of autonomy, the decision making of autonomous berthing should be carried out and be understood by human beings. This paper proposes a fuzzy logic-
Yibo Li, Guobin Song, Tsz-Leung Yip, Gi-Tae Yeo   +3 more
doaj   +1 more source

Shore Construction Detection by Automotive Radar for the Needs of Autonomous Surface Vehicle Navigation

ISPRS International Journal of Geo-Information, 2019
Autonomous surface vehicles (ASVs) are becoming more and more popular for performing hydrographic and navigational tasks. One of the key aspects of autonomous navigation is the need to avoid collisions with other objects, including shore structures ...
Andrzej Stateczny, Witold Kazimierski, Paweł Burdziakowski, Weronika Motyl, Marta Wisniewska   +4 more
doaj   +1 more source

Berthing State Estimation for Autonomous Surface Vessels Using Ship-Based 3D LiDAR

Journal of Marine Science and Engineering
Automated berthing remains a critical challenge for autonomous surface vessels (ASVs), necessitating precise berthing state estimation as a fundamental prerequisite. In this paper, we present a novel berthing state estimation method tailored for ASVs and
Haichao Wang, Yong Yin, Qianfeng Jing, Chen-Liang Zhang   +3 more
doaj   +1 more source

Improved Model Predictive Control Algorithm for the Path Tracking Control of Ship Autonomous Berthing

Journal of Marine Science and Engineering
To address the issues of path tracking accuracy and control stability in autonomous ship berthing, an improved algorithm combining nonlinear model predictive control (NMPC) and convolutional neural networks (CNNs) is proposed in this paper.
Chunyu Song, Xiaomin Guo, Jianghua Sui
doaj   +1 more source

Integrated LiDAR-Based Localization and Navigable Region Detection for Autonomous Berthing of Unmanned Surface Vessels

Journal of Marine Science and Engineering
Autonomous berthing of unmanned surface vehicles (USVs) requires high-precision positioning and accurate detection of navigable region in complex port environments. This paper presents an integrated LiDAR-based approach to address these challenges.
Haichao Wang, Yong Yin, Liangxiong Dong, Helang Lai   +3 more
doaj   +1 more source

A Novel COLREGs-Based Automatic Berthing Scheme for Autonomous Surface Vessels

Journal of Marine Science and Engineering
This paper tackles the highly challenging problem of automatic berthing for autonomous surface vessels (ASVs), encompassing trajectory planning, trajectory tracking, and collision avoidance. Firstly, a novel A* algorithm integrated with a quasi-uniform B-
Shouzheng Yuan, Gongwu Sun, Yunqian He, Yuxin Sun, Simeng Song, Wanyuan Zhang, Huifeng Jiao   +6 more
doaj   +1 more source

Autonomous berthing/unberthing of a Work Attachment Mechanism/Work Attachment Fixture (WAM/WAF) [PDF]

Discussed here is the autonomous berthing of a Work Attachment Mechanism/Work Attachment Fixture (WAM/WAF) developed by NASA for berthing and docking applications in space.
Antrazi, Sami S., Nguyen, Charles C.
core   +1 more source

Research hotspots and tendency of intelligent ship berthing technology

Zhongguo Jianchuan Yanjiu
This paper reviews the research status of intelligent ship berthing technology at home and abroad in recent years. The hotspots and applications of berthing technology are summarized in the three aspects of berthing mode, mathematical model and control ...
Guoshuai LI, Xianku ZHANG, Anchao ZHANG
doaj   +1 more source

Guideline requirements for serviceable spacecraft grasping/berthing/docking interfaces based on simulations and flight experience (survey paper) [PDF]

As space vehicles and structures become larger and more complex, the development of systems to assist humans in assembling, operating, maintaining, and performing space rescue or retrieval of these vehicles and structures becomes increasingly important ...
Thompson, Allen B.
core   +1 more source