... ABSTRACT Convention on the International Regulations for Preventing Collisions at Sea,1972(COLREGs) stipulates the vessels’ obligations when they meet, but in the actual navigational environment, the captains don't necessarily believe they have the responsibility to give way according...

... for other surface vehicles. In the last years, even if not required, more and more yachts, boats, and sailing boats have voluntarily installed AIS transmitters and/or receivers. The collision detection is formalised with simple but effective mathematical formulations and provides the primary navigational...

... ABSTRACT In order to ensure the safety of unmanned surface vehicle during navigation in complex and dynamic marine environments, it is necessary for USV to possess real-time obstacle avoidance capability while minimizing deviation from the global planned path. However, in practical...

... ABSTRACT To ensure the safe navigation of Maritime Autonomous Surface Ships (MASS), it is crucial to establish a robust collision avoidance system. In this study, we designed a system for autonomous vessels to avoid collisions with other ships. Utilizing the Decision tree model, a machine...

... sustainability resistance grid sustainable development trimaran resistance social responsibility trimaran residual resistance trimaran navigation proportion variation ship resistance equation efficiency modeling & simulation frictional resistance navigation hull fluctuation...

.... The maneuverability is of significant importance for its economic efficiency, safety, and energy conservation during navigation. Considering the aspect of navigational safety, the International Maritime Organization (IMO) established mandatory maneuverability standards for new ship constructions in the early 21st...

... ABSTRACT Despite the improvement of primary means of navigation, collisions are still taking high share in maritime accidents. Although the emphasis on marine education and training and enhanced sensor use constantly increases, the human factor in collisions prevails. Such consequences can...

... decision of intelligent ships. INTRODUCTION With the prosperous development of the shipping industry, a large number of ship types has increased, their size and sailing speed differ greatly, and the frequency of ship overtaking has been increasing. In order to ensure the navigational safety of ships...

... of autonomous technology in shipping can face numerous challenges from the technology and regulatory perspectives. Adopting onshore operation centers (OOCs) for monitoring and control support is envisaged to alleviate these challenges and assist in obtaining broader acceptance of autonomous navigation from...

... ABSTRACT River navigation has experienced considerable growth in recent years, both for goods transport and tourism. The increase in river traffic, whether in terms of frequency, speed or vessel size, inevitably increases the pressure on the fauna, flora and sediments found along riverbanks...

... ABSTRACT This article considers the factors of ship navigation safety and waterway service level, and creates a port waterway capacity calculation model based on queuing theory, obtaining the waterway capacity at all levels of waterway service level. The safety of ship navigation is ensured...

... ABSTRACT After the rudder steering operation in the submarine's direct navigating state, a certain angle presents between the main hull of the submarine and the current, which is identified as the oblique navigating state of the submarine. The study on the hydrodynamic performance...

... ABSTRACT Based on an existing X-rudder AUV model, this paper verifies the control effect of NISM depth control algorithm and heading control PID algorithm through underwater autonomous navigation experiment. Based on the experimental results, an improved depth and heading control algorithm...

... ABSTRACT The challenge of Arctic sea ice environments is crucial for Arctic shipping. To address this concern, we propose an innovative method for ship path planning to enhance navigation safety and efficiency in Arctic waters. Firstly, a 3D risk grid map for path planning is developed based...

... cover most interferes with navigation, some routes go north of the Novaya Zemlya archipelago. The proportion of the northern route reaches its maximum in May (38%). For most of the year, both the median route and interquartile area (i.e. the area where 50% of all routes are located) of the route...

... waves given by the typical ship loading conditions and navigational and environmental parameters, respectively. (2) Pattern layer. It is used to calculate the Gaussian function value for each of the training and test samples. The Gaussian value is the output value of the node of the layer. The number...

... is designed and the depth control effect diagram is given. Compared with the traditional double closed-loop PD controller, the adaptive fuzzy controller has better control effect. The residual buoyancy observer is added to eliminate the trim angle caused by the imbalance of the submarine's direct navigation...

... ABSTRACT The situation method and its results of NMRI cruising AUVs with a formation control are presented in this paper. The AUV navigation is assumed by a control on leader-follower formation applicable to various underwater measurements. The navigation order is modeled by a graph theory...

... ABSTRACT The fuel consumption of a ship during navigation is closely related to its speed, path and encountered weather. Ship operating companies always tend to choose the appropriate weather route for fuel consumption saving. When completing a voyage mission, the operating ships are always constrained...

... ABSTRACT The continuous melting of Arctic sea ice has attracted increasing interest in the potential of navigation in the Arctic route. Most existing studies use the sea ice concentration (SIC) to evaluate the sea ice condition along the route. Based on the historical sea ice data (including...