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Yuyang Huang, Wei Li, Jun Ning and Zhihui Li
This paper investigates the cooperative formation trajectory tracking problem for heterogeneous unmanned aerial vehicle (UAV) and multiple unmanned surface vessel (USV) systems with collision avoidance performance. Firstly, a formation control protocol b...
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Shunan Hu, Shenpeng Tian, Jiansen Zhao and Ruiqi Shen
In order to ensure the safe navigation of USVs (unmanned surface vessels) and real-time collision avoidance, this study conducts global and local path planning for USVs in a variable dynamic environment, while local path planning is proposed under the co...
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Jin-Gu Kang, Moon-Chan Kim and Yong-Jin Shin
This study is a parametric investigation of the application of a compact type of pre-swirl duct for a slender aft-body 158k crude oil carrier. The International Maritime Organization (IMO) has created the Energy Efficiency Design Index (EEDI), which is a...
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Shubin Zhong, Yuanqiao Wen, Yamin Huang, Xiaodong Cheng and Liang Huang
Formal expression of ship behavior is the basis for developing autonomous navigation systems, which supports the scene recognition, the intention inference, and the rule-compliant actions of the systems. The Convention on the International Regulations fo...
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Zhongxian Zhu, Hongguang Lyu, Jundong Zhang and Yong Yin
A novel collision avoidance (CA) algorithm was proposed based on the modified artificial potential field (APF) method, to construct a practical ship automatic CA system. Considering the constraints of both the International Regulations for Preventing Col...
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Ting Sun, Cheng Liu, Shuang Xu, Qizhi Hu and Cheng Li
In crowded waters, the incidence of collision accidents of multiple vessels has increased significantly, most of which can be ascribed to human factors, particularly, human decision-making failures and inobservance with International Regulations for Prev...
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Zhiyuan Sun, Hanbing Sun, Ping Li and Jin Zou
A self-organizing cooperation strategy for multiple unmanned surface vessels (USVs) to pursue intelligent evaders in the case of a dynamic obstacle vessel is proposed. Firstly, a self-organizing cooperative hunting strategy is proposed to form an Apollon...
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Diju Gao, Peng Zhou, Weifeng Shi, Tianzhen Wang and Yide Wang
A new method is proposed for the dynamic obstacle avoidance problem of unmanned surface vehicles (USVs) under the international regulations for preventing collisions at sea (COLREGs), which applies the particle swarm optimization algorithm (PSO) to the d...
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Hyo-Gon Kim, Sung-Jo Yun, Young-Ho Choi, Jae-Kwan Ryu and Jin-Ho Suh
Recently, unmanned surface vehicles (USV) are being actively developed. For USVs to be put to practical use, it is necessary to secure safety by preventing collisions with general ships. To this end, USVs must avoid opposing vessels based on internationa...
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Liang Zhang, Junmin Mou, Pengfei Chen and Mengxia Li
In this research, a hybrid approach for path planning of autonomous ships that generates both global and local paths, respectively, is proposed. The global path is obtained via an improved artificial potential field (APF) method, which makes up for the s...
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Maurizio Righetti, Carlos Maximiliano Giorgio Bort, Michele Bottazzi, Andrea Menapace and Ariele Zanfei
Many efforts have been made in recent decades to formulate strategies for improving the efficiency of water distribution systems (WDS), led by the socio-demographic evolution of modern society and the climate change scenario. The improvement of WDS manag...
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James Robert McIntosh, Peter Newman, Roman Trubka, Jeff Kenworthy
Many car-dependent cities have major transit projects stuck in financial and economic assessment due to inadequate links between land use, transport, and funding. This has left most urban transport networks underfunded and requiring significant governmen...
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Naifeng Wen, Yundong Long, Rubo Zhang, Guanqun Liu, Wenjie Wan and Dian Jiao
This research introduces a two-stage deep reinforcement learning approach for the cooperative path planning of unmanned surface vehicles (USVs). The method is designed to address cooperative collision-avoidance path planning while adhering to the Interna...
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Jiyu Yao and Longhui Gang
Ship path planning is one of the key technologies for ship automation. Establishing a cooperative collision avoidance (CA) path for multi-ship encounters is of great value to maritime intelligent transportation. This study aims to solve the problem of mu...
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Yang Qu and Lilong Cai
This paper presents a real-time emergency collision-avoidance method for unmanned surface vehicles (USVs) with the International Regulations for Preventing Collisions at Sea (COLREGS) flexibly obeyed. The pivotal issue is that some traffic vessels may vi...
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Michel Nöding, Martin Schuermann, Lothar Bertsch, Marc Koch, Martin Plohr, Robert Jaron and Jeffrey J. Berton
The German Aerospace Center has launched an internal project to assess the noise impact associated with supersonic transport aircraft during approach and departure. A dedicated simulation process is established to cover all relevant disciplines, i.e., ai...
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Erasmo Purificato, Sabine Wehnert and Ernesto William De Luca
In the age of digital information, where the internet and social networks, as well as personalised systems, have become an integral part of everyone?s life, it is often challenging to be aware of the amount of data produced daily and, unfortunately, of t...
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Bing Wang, Yixiong He, Weixuan Hu, Junmin Mou, Liling Li, Ke Zhang and Liwen Huang
A great number of collision accidents can be attributed to incongruous collision-avoidance actions between the give-way vessel and the stand-on vessel in a crossing or overtaking situation. If the give-way vessel does not take appropriate collision-avoid...
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Nicolás Molina-Padrón, Francisco Cabrera-Almeida, Víctor Araña-Pulido and Beatriz Tovar
Every year, more than 1500 containers are lost around the world. These accidents are increasingly more common due to the boom of the shipping industry, presenting serious consequences for marine ecosystems and maritime navigation. This problem has alerte...
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