Results 21 to 30 of about 1,034 (129)

COLREGs-Informed RRT* for Collision Avoidance of Marine Crafts [PDF]

open access: yes2021 IEEE International Conference on Robotics and Automation (ICRA), 2021
The paper proposes novel sampling strategies to compute the optimal path alteration of a surface vessel sailing in close quarters. Such strategy directly encodes the rules for safe navigation at sea, by exploiting the concept of minimal ship domain to determine the compliant region where the path deviation is to be generated.
Thomas Thuesen Enevoldsen   +2 more
openaire   +2 more sources

VORRT-COLREGs: A Hybrid Velocity Obstacles and RRT Based COLREGs-Compliant Path Planner for Autonomous Surface Vessels [PDF]

open access: yesOCEANS 2021: San Diego – Porto, 2021
This paper presents VORRT-COLREGs, a hybrid technique that combines velocity obstacles (VO) and rapidly-exploring random trees (RRT) to generate safe trajectories for autonomous surface vessels (ASVs) while following nautical rules of the road. RRT generates a set of way points and the velocity obstacles method ensures safe travel between way points ...
Rahul Dubey, Sushil J. Louis
openaire   +3 more sources

Generalized Behavior Decision-Making Model for Ship Collision Avoidance via Reinforcement Learning Method

open access: yesJournal of Marine Science and Engineering, 2023
Due to the increasing number of transportation vessels, marine traffic has become more congested. According to the statistics, 89% to 95% of maritime accidents are related to human factors.
Wei Guan   +3 more
doaj   +1 more source

Ship Trajectory Control Optimization in Anti-collision Maneuvering [PDF]

open access: yesTransNav, 2013
A lot of attentions are being paid to ship's intelligent anti-collision by researchers. Several solutions have been introduced to find an optimum trajectory for ship, such as Game Theory, Genetic or Evolutionary Algorithms and so on.
Jinfen Zhang   +3 more
doaj   +1 more source

Trajectory Planning with Negotiation for Maritime Collision Avoidance [PDF]

open access: yesTransNav, 2015
The problem of vessel collisions or near-collision situations on sea, often caused by human error due to incomplete or overwhelming information, is becoming more and more important with rising maritime traffic.
Sascha Hornauer   +3 more
doaj   +1 more source

Collision avoidance planning for unmanned surface vehicle based on eccentric expansion

open access: yesInternational Journal of Advanced Robotic Systems, 2019
The International Regulations for Preventing Collisions at Sea (COLREGS) specify certain navigation rules for ships at risk for collision. Theoretically, the safety of unmanned surface vehicles and traffic boats would be guaranteed when they comply with ...
Lifei Song   +6 more
doaj   +1 more source

The Obligations of Single-Propeller Vessels at the Head-On Situation [PDF]

open access: yesTransNav, 2016
Manoeuvring characteristics of the vessels at the head-on situation are examined in this study. The meetings between the power-driven vessels are considered based on their propellers. These vessels can either have a single propeller or double propellers.
Bekir Sahin
doaj   +1 more source

Graphical Tools to Facilitate the Selection of Manoeuvres to Avoid Collision [PDF]

open access: yesTransNav, 2023
Graphical tools have been proposed to facilitate the selection, evaluation, and correction of anti-collision actions in situations with moving and stationary obstacles, assuming that such situations are not extreme or ordinary with sailing vessels and ...
Leonid Vagushchenko   +1 more
doaj   +1 more source

Development of Evaluation Procedures for Watchkeeping Officers Using Bridge Simulator [PDF]

open access: yesTransNav, 2020
A comprehensive assessment of watchkeeping officers should be considered as a preventive measure in terms of safety of navigation. Watchkeeping officers are assigned after passing exams of state authorities and various evaluation procedures of companies.
Murat Selçuk Solmaz   +3 more
doaj   +1 more source

COLREGS-Compliant Target Following for an Unmanned Surface Vehicle in Dynamic Environments

open access: yes, 2018
This paper presents the autonomous tracking and following of a marine vessel by an Unmanned Surface Vehicle in the presence of dynamic obstacles while following the International Regulations for Preventing Collisions at Sea (COLREGS) rules.
Pranay Agrawal (5399951)   +1 more
core   +1 more source

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