Temat: safe ship - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Development of Solution for Safe Ship Considering Seakeeping PERformance
Autorzy:: Yoon, H.K.
Nguyen, V.M.
Nguyen, T.T.
Tematy:: seakeeping
seakeeping performance
safe ship
safe ship considering
optimal weather routing
container ship
Dynamic Programming (DP)
Changwon National University (CWNU); Pokaż więcej
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Powiązania:: https://bibliotekanauki.pl/articles/116617.pdf Link otwiera się w nowym oknie
Opis:: In recent years, safety of a ships has become one important issues needed to solved as soon as possible in ship navigation. Optimal weather routing is one of best solution for ensuring safe operation of a ship with a with short passage time or minimum energy to avoid a certain excessive motion. This paper introduced the development of solution for safety and optimal weather routing a ship considering seakeeping performance based on model test result. This study introduced how to apply A* algorithm based on result of the seakeeping model test for determining the optimal ship routes. Seakeeping model test of 8600 TEU container ship was carried out in Changwon National University's seakeeping basin and its RAOs at various frequencies were used to predict the RMS motion values in irregular waves. The specially modelled path-cost function and the safety constraints were proposed for finding the optimal path of the ship. The comparison of ship performances estimated by great circle’s path and estimated optimal route during the voyage of the ship was investigated.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Analysis of Methods of Determining the Safe Ship Trajectory
Autorzy:: Lisowski, J.
Tematy:: ship route
Safe Ship Trajectory
route planning
Determining the Safe Ship Trajectory
ship trajectory
Artificial Neural Network (ANN)
game theory
computer simulation; Pokaż więcej
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Powiązania:: https://bibliotekanauki.pl/articles/116647.pdf Link otwiera się w nowym oknie
Opis:: The paper describes six methods of optimal and game theory and artificial neural network for synthesis of safe control in collision situations at sea. The application of optimal and game control algorithms to determine the own ship safe trajectory during the passing of other encountered ships in good and restricted visibility at sea is presented. The comparison of the safe ship control in collision situation: multi-step matrix non-cooperative and cooperative games, multi-stage positional non-cooperative and cooperative games have been introduced. The considerations have been illustrated with examples of computer simulation of the algorithms to determine safe of own ship trajectories in a navigational situation during passing of eight met ships.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Measuring system for parallel moving ships
Autorzy:: Waszkiel, A.
Tematy:: vision system
relative ship position determination
safe ship control
computer simulation; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/259094.pdf Link otwiera się w nowym oknie
Opis:: The paper introduces algorithm for determining the relative positions of two ships manoeuvring as a pair. This algorithm also takes into account determination of angle ă, which is difference between present approaching vessel and guidance vessel course. Relative positioning system is a vision system based on three colours LEDs matrix and rotating CCD camera. There are presented ways of distance calculation based on photogrammetric methods from the known distance between the characteristic points of the real. Several possible cases are taken into account. The considerations have been illustrated on the basis of model of the system. These results confirm the correctness of the operation of the algorithm that is used by the designed measuring system.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The Comparison of Safe Control Methods in Marine Navigation in Congested Waters
Autorzy:: Lisowski, J.
Tematy:: marine navigation
Congested Waters
Collision Situation
safe ship control
Decision Supporting Algorithm
Dynamic Programming Method
Linear Programming Method
Safe Own Ship's Trajectory; Pokaż więcej
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Powiązania:: https://bibliotekanauki.pl/articles/116043.pdf Link otwiera się w nowym oknie
Opis:: The paper introduces comparison of five methods of safe ship control in collision situation: multi-stage positional non-cooperative and cooperative game, multi-step matrix game, dynamic and kinematics optimisation with neural constrains of state control process. The synthesis of computer navigator decision supporting algorithms with using dual linear programming and dynamic programming methods has been presented. The considerations have been illustrated an examples of a computer simulation the algorithms to determine the safe own ship's trajectory in situation of passing a many of the ships encountered at sea.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The branch-and-bound method and genetic algorithm in avoidance of ships collisions in fuzzy environment
Autorzy:: Mohamed-Seghir, Mostefa
Tematy:: safe ship control
optimal control
safe trajectories
branch and bound method
genetic algorithm
ship control
fuzzy set theory; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/259091.pdf Link otwiera się w nowym oknie
Opis:: Marine navigation consists in continuous observation of the situation at sea, determination the anti-collision manoeuvre. So it necessary to determine ship safe trajectory as a sequence of ship course changing manoeuvres. Each manoeuvre is undertaken on the basis of information obtained from the anti-collision system ARPA. This paper describes a method of safe ship control in the collision situation in a fuzzy environment based on a branch and bound method and a genetic algorithm. The optimal safe ship trajectory in a collision situation is presented as multistage decision-making process.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Optimal and game control algorithms of a ship in collision situations at sea
Autorzy:: Lisowski, J
Tematy:: marine navigation
safety at sea
safe ship control
optimal control
game theory; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Badań Systemowych PAN
Powiązania:: https://bibliotekanauki.pl/articles/205923.pdf Link otwiera się w nowym oknie
Opis:: This paper presents an application of selected methods of optimal and game control theory to determine own ship safe trajectory when passing other ships encountered in good and in restricted visibility at sea. Five algorithms for determining safe trajectory of the own ship in a collision risk situation: non-cooperative positional game, non-cooperative matrix game, cooperative positional game, dynamic optimization, and kinematic optimization are compared. The analysis is illustrated with examples of computer simulations of the algorithms to determine safe and optimal own ship trajectories in the real navigational situations at sea.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Sensitivity of transport object control quality for measuring the inaccuracy of state variables
Autorzy:: Lisowski, Józef
Tematy:: marine navigation
safety at sea
safe ship control
game control
computer simulation; Pokaż więcej
Wydawca:: Uniwersytet Technologiczno-Humanistyczny im. Kazimierza Pułaskiego w Radomiu
Powiązania:: https://bibliotekanauki.pl/articles/59123459.pdf Link otwiera się w nowym oknie
Opis:: This work analyzes the sensitivity functions and optimum control of a transport and logistics process model. It explains the fundamental model of controlling safe ship movement as a differential game, and optimizing control algorithms through multi-matrix game and multi-stage positioning game. The sensitivity features for controlling safe ship in actual collision scenario are described in relation to inaccurate information of process position and variations in its varables, based on the determination of computer simulation algorithms in Matlab/Simulink software.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Conditions of safe ship operation in sea waterway systems
Autorzy:: Gucma, S.
Tematy:: marine traffic engineering
sea waterway systems
traffic control
safe ship operation
algorithm; Pokaż więcej
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Powiązania:: https://bibliotekanauki.pl/articles/359136.pdf Link otwiera się w nowym oknie
Opis:: The article presents an algorithm developed for determining conditions of safe ship operation in a system of sea waterways consisting of three components, or subsystems: waterways, navigation and traffic control. A model of the optimization of sea waterway system parameters is described.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Verification of a deterministic ships safe trajectory planning algorithm from different ships’ perspectives and with changing strategies of target ships
Autorzy:: Lazarowska, A.
Tematy:: safe ship's trajectory
ship's trajectory
collision avoidance module
autonomous navigation system
maritime autonomous surface ships; Pokaż więcej
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Powiązania:: https://bibliotekanauki.pl/articles/2063957.pdf Link otwiera się w nowym oknie
Opis:: The paper presents results of a ship's safe trajectory planning method verification - the Trajectory Base Algorithm, which is a deterministic approach for real-time path-planning with collision avoidance. The paper presents results of the algorithm’s verification from different ships’ perspectives and with changing strategies of target ships. Results prove the applicability of the algorithm in the Collision Avoidance Module of the Autonomous Navigation System for Maritime Autonomous Surface Ships.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Game Strategies of Ship in the Collision Situations
Autorzy:: Lisowski, J.
Tematy:: game theory
Game Ship Control (GSC)
Collision Situation
MATLAB
Safe Ship Trajectory
Simulation Research
Neural Ship’s Domain
Algorithm; Pokaż więcej
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Powiązania:: https://bibliotekanauki.pl/articles/117558.pdf Link otwiera się w nowym oknie
Opis:: The paper introduced the basic model of process of safe ship control in a collision situation using a game model with j objects, which includes non-linear state equations and non-linear, time varying constraints of the state variables as well as the quality game control index in the forms of the game integral payment and the final payment. Approximated model of the process control as the model of multi-step matrix game in the form of dual linear programming problem has been adopted here. The Game Ship Control GSC computer program has been designed in the Matlab/Simulink software in order to determine the own ship’s safe trajectory. These considerations have been illustrated with examples of a computer simulation using an GSC program for determining the safe ship's trajectory in real navigational situation. Simulation research were passed for five sets of strategies of the own ship and met ships.
Dostawca treści:: Biblioteka Nauki

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