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Wyszukujesz frazę "Szlapczynski, R." wg kryterium: Autor


Wyświetlanie 1-16 z 16
Tytuł:
Evolutionary approach to ship’s trajectory planning within Traffic Separation Schemes
Autorzy:
Szłapczyński, R.
Powiązania:
https://bibliotekanauki.pl/articles/259049.pdf
Data publikacji:
2012
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
marine navigation
Traffic Separation Schemes
collision avoidance manoeuvres
evolutionary computing
Opis:
The paper presents the continuation of the author’s research on evolutionary approach to ship trajectory planning. While the general problem of the evolutionary trajectory planning has already been solved, no one has yet touched one of its specific aspects: evolutionary trajectory planning within Traffic Separation Schemes. Traffic Separation Scheme (TSS) is a traffic-management route-system complying with rules of the International Maritime Organization. In brief, the ships navigating within a TSS all sail in the direction assigned to a particular traffic lane or they cross at a course angle as close to 90 degrees as possible. This and other TSS rules largely affect the evolutionary method. The paper presents a proposal of the extended evolutionary method, with a focus on changes that have to be made to obey TSS rules, especially the changes in the phases of evaluation and specialised operators of the evolutionary cycle.
Źródło:
Polish Maritime Research; 2012, 1; 11-20
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evolutionary sets of safe ship trajectories with speed reduction manoeuvres within traffic separation schemes
Autorzy:
Szłapczyński, R.
Powiązania:
https://bibliotekanauki.pl/articles/260256.pdf
Data publikacji:
2014
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
collision avoidance manoeuvres
track planning
Traffic Separation Schemes
speed reduction
Opis:
In the previous paper the author presented the evolutionary ship trajectory planning method designed to support Traffic Separation Schemes (TSS). This time the extensions of this method are described which allow to combine evolutionary trajectory planning with speed reduction manoeuvres. On TSS regions with higher than usual density of traffic and smaller distances between ships, the course alterations alone are not always sufficient or effective means of collision avoidance. Therefore they must be supplemented by speed reduction manoeuvres to a larger extent than on open waters. The paper includes a brief description of the optimisation problem, descriptions of the new elements of the method (fitness function, algorithms and the evolutionary cycle) and the examples of how the extended method successfully solves the problems unsolvable without applying speed reduction.
Źródło:
Polish Maritime Research; 2014, 1; 20-27
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evolutionary Ship Track Planning within Traffic Separation Schemes – Evaluation of Individuals
Autorzy:
Szłapczyński, R.
Powiązania:
https://bibliotekanauki.pl/articles/116089.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
collision avoidance
Track Planning
ship trajectory
Opis:
The paper presents an extended version of the author’s Evolutionary Sets of Safe Ship Trajectories method. The method plans safe tracks of all ships involved in an encounter including speed reduction maneuvers, if necessary, and taking into account Rule 10 of COLREGS, which specifies ships’ behavior within Traffic Separation Schemes governed by IMO. The paper focuses on the evaluation phase of the evolutionary process and shows how fitness function is designed to compare various possible tracks as well as to assess the quality of a final solution. The impact of the fitness function on the method’s results is illustrated by examples.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 2; 301-308
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fuzzy Collision Threat Parameters Area (FCTPA) – A New Display Proposal
Autorzy:
Szlapczynski, R.
Powiązania:
https://bibliotekanauki.pl/articles/117503.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
anticollision
Collision Avoidance Manoeuvre
decision support system (DSS)
Collision Threat Area
fuzzy logic
Last Chance Manoeuvre
Risk of Collision
Collision Situatio
Opis:
The paper introduces a visualization method that enables the navigator to estimate an encounter situation and choose collision avoidance manoeuvre if necessary. It is based on the CTPA method and offers new features: fuzzy sectors of forbidden speed and course values and the possibility to use any given ship domain. The method is fast enough to be applied in the real-time decision-support system.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2008, 2, 4; 359-362
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determining the optimal course alteration manoeuvre in a multi-target encounter situation for a given ship domain model
Autorzy:
Szłapczyński, R.
Powiązania:
https://bibliotekanauki.pl/articles/320909.pdf
Data publikacji:
2007
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
manewr kursem
złożona sytuacja
zapobieganie zderzeniom
course manoeuvre
multi-target situation
collision avoidance
Opis:
The paper introduces a new numerical deterministic method of finding the necessary course alteration manoeuvre in a multi-target encounter situation for a given ship domain model. Its simplicity, flexibility and low computational complexity make this algorithm a useful component for real-time systems, where processing time is of importance. The algorithm is presented explicitly, so that it could be directly applied in any on-board collision avoidance system or VTS system. Example results of its use are also provided.
Źródło:
Annual of Navigation; 2007, 12; 75-85
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new method for searching optimal path on a raster plane including cost of direction changes
Autorzy:
Szłapczyński, R.
Powiązania:
https://bibliotekanauki.pl/articles/259541.pdf
Data publikacji:
2005
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
navigation
optimal route
turn penalties
Lee's algorithm
vave propagation
raster charts
Opis:
The article introduces a new algorithm for finding optimal routes on raster planes. This method takes advantage of the new data structure and results in minimizing the number of direction changes within a route. It has linear time and space complexities and is sufficiently fast to perform real-time routing on the raster grids. Both the algorithm and its data structure are presented in detail in the paper. Possible applications of this method are also discussed.
Źródło:
Polish Maritime Research; 2005, 3; 27-31
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Customized crossover in evolutionary sets of safe ship trajectories
Autorzy:
Szłapczyński, R.
Szłapczyńska, J.
Powiązania:
https://bibliotekanauki.pl/articles/331257.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
algorytm ewolucyjny
unikanie kolizji statków
system wspomagania decyzji
evolutionary algorithms
ship collision avoidance
decision support systems
Opis:
The paper presents selected aspects of evolutionary sets of safe ship trajectories-a method which applies evolutionary algorithms and some of the assumptions of game theory to solving ship encounter situations. For given positions and motion parameters of the ships, the method finds a near optimal set of safe trajectories of all ships involved in an encounter. The method works in real time and the solutions must be returned within one minute, which enforces speeding up the optimisation process. During the development of the method the authors tested various problem-dedicated crossover operators to obtain the best performance. The results of that research are given here. The paper includes a detailed description of these operators as well as statistical simulation results and examples of experiment results.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2012, 22, 4; 999-1009
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-objective weather routing of sailing vessels
Autorzy:
Życzkowski, M.
Szłapczyński, R.
Powiązania:
https://bibliotekanauki.pl/articles/258742.pdf
Data publikacji:
2017
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
sailing vessels
weather routing
weather forecast
comfort
penalty
Opis:
The paper presents a multi-objective deterministic method of weather routing for sailing vessels. Depending on a particular purpose of sailboat weather routing, the presented method makes it possible to customize the criteria and constraints so as to fit a particular user’s needs. Apart from a typical shortest time criterion, safety and comfort can also be taken into account. Additionally, the method supports dynamic weather data: in its present version short-term, mid-term and long-term term weather forecasts are used during optimization process. In the paper the multi-objective optimization problem is first defined and analysed. Following this, the proposed method solving this problem is described in detail. The method has been implemented as an online SailAssistance application. Some representative examples solutions are presented, emphasizing the effects of applying different criteria or different values of customized parameters.
Źródło:
Polish Maritime Research; 2017, 4; 10-17
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evolutionary sets of cooperating ship trajectories : COLREGS compliance
Autorzy:
Szłapczyńska, J.
Szłapczyński, R.
Powiązania:
https://bibliotekanauki.pl/articles/2069662.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
evolutionary algorithms
multi-ship encounters
anti-collision
COLREGS
Opis:
The paper presents a newly designed improvement to the method of solving multi-ship encounter situations. In general, the method combines some of the assumptions of game theory with evolutionary programming and aims to find optimal set of cooperating trajectories of all ships involved in an encounter situation. The improvement presented here is a new way of modelling some of the COLREGS rules. Due to this change, the method is now able to find solutions, which are more compliant with COLREGS, more intuitive and consequently – safer from the navigator’s point of view.
Źródło:
Journal of Polish Safety and Reliability Association; 2010, 1, 1; 231--238
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evolutionary Sets of Safe Ship Trajectories: the methods development and selected research results
Ewolucyjne zbiory bezpiecznych trajektorii statków: opis metody oraz wybrane wyniki badań
Autorzy:
Szlapczyński, R.
Szlapczyńska, J.
Powiązania:
https://bibliotekanauki.pl/articles/224357.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
nawigacja morska
bezpieczeństwo trajektorii statków
unikanie kolizji
marine navigation
collision avoidance
evolutionary algorithms
Opis:
The Evolutionary Sets of Safe Ship Trajectories is a method solving ship encounter situations. The method combines evolutionary approach to planning ship trajectory with some of the assumption of game theory. For given positions and motion parameters the method finds a near optimal set of safe trajectories of all ships involved in an encounter. This paper presents framework of the method and its development. Additionally, selected method's results for two multi-ship encounters are provided.
Metoda ewolucyjnych zbiorów bezpiecznych trajektorii statków służy rozwiązywaniu sytuacji spotkań wielu statków. Metoda ta łączy podejście ewolucyjne w planowaniu trajektorii z częścią założeń pochodzących z teorii gier. Dla znanych pozycji statków oraz ich parametrów ruchu metoda znajduje bliski optymalnemu, zbiór trajektorii dla wszystkich statków biorących udział w spotkaniu. W tym artykule zaprezentowano opis metody i jej rozwoju. Dodatkowo artykuł zawiera wybrane wyniki badań dla złożonych scenariuszy testowych.
Źródło:
Archives of Transport; 2011, 23, 2; 223-238
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Simulative Comparison of Ship Domains and Their Polygonal Approximations
Autorzy:
Szłapczyński, R.
Szłapczyńska, J.
Powiązania:
https://bibliotekanauki.pl/articles/116310.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
safety at sea
Ship Domain
Collision Avoidance
COLREGs
ECDIS
Simulative Comparison
Fuzzy Domain
Simulation Experiment
Opis:
The paper investigates the impact of a precise ship domain shape on the size of collision avoidance manoeuvres. The considered collision avoidance manoeuvres include both course and speed alterations. Various ship domains are compared with their polygonal approximations, which vary in the number of points of a domain contour and placement of these points. The best of all considered approximations is determined in the course of simulation experiments performed for head-on, crossing and overtaking situations. The chosen number and placement of contour points combine precision of domain approximation with reasonable computational time.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 1; 135-141
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Supporting navigator’s decisions by visualizing ship collision risk
Autorzy:
Szłapczyński, R.
Śmierzchalski, R.
Powiązania:
https://bibliotekanauki.pl/articles/258668.pdf
Data publikacji:
2009
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ARPA display
collision avoidance manoeuvres
collision risk
navigation
Opis:
The paper introduces a visualization method that enables the navigator to estimate an encounter situation and choose collision avoidance manoeuvre, if necessary. It is based on the Collision Threat Parameters Area method and offers new features: fuzzy sectors of forbidden speed and course values, the possibility to use any given ship domain and a new formula of collision risk assessment. All these elements result in a method, which enables the navigator to differentiate between varying levels of risk and to point out the direct threats. The method is fast enough to be applied in the real-time decision support system.
Źródło:
Polish Maritime Research; 2009, 1; 83-88
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bridge Ergonomic Design: A Review
Autorzy:
Stopa, M.
Szłapczyński, R.
Powiązania:
https://bibliotekanauki.pl/articles/24201335.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
navigational bridge equipment
SOLAS convention
ergonomics criteria for bridge equipment
ergonomics criteria
bridge equipment
bridge instruments
STCW convention
bridge design
Opis:
Human error remains the most common cause of marine incidents and it is worth emphasizing that navigator’s performance is directly affected by ergonomic factors on the bridge. Studies regarding influence of bridge design and work environment on the operator are rare, thus the main purpose of this paper is to fill in this gap. Documents issued by recognized organizations, research publications and additional sources were reviewed to check if navigators obtain enough support in this area and what should be improved. It was found that present ergonomic guidelines for the bridge design require revision and there is a need for making the regulations more meaningful and direct. The main documents that require reworking include Guidelines on Ergonomics Criteria for Bridge Equipment and Layout, International Convention of Standards of Training, Certification and Watchkeeping (STCW) as well as selected parts of SOLAS V/15 regulation.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2022, 16, 4; 701--707
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heuristic Method of Safe Manoeuvre Selection Based on Collision Threat Parameters Areas
Autorzy:
Szlapczynska, J.
Szlapczynski, R.
Powiązania:
https://bibliotekanauki.pl/articles/117077.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
heuristic method
collision risk
collision avoidance
CTPA (Collision Threat Parameters Area)
safe manoeuvre selection
manoeuvring
colregs
pareto optimal
Opis:
This paper is a continuation of papers dedicated to a radar-based CTPA (Collision Threat Parameters Area) display designed to support safe manoeuvre selection. The display visualizes all the ships in an encounter and presents situational overview from the own ship's point of view. It calculates and displays information on unsafe or unrealistic own ship's course & speed allowing a user to select a safe manoeuvre. So far only the manual selection was possible, thus the paper aims at presenting a heuristic approach towards the manoeuvre selection when using the display.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 4; 591-596
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A framework of a ship domain-based near-miss detection method using Mamdani neuro-fuzzy classification
Autorzy:
Niksa-Rynkiewicz, T.
Szłapczyński, R.
Powiązania:
https://bibliotekanauki.pl/articles/260244.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
near-miss
collision risk
ship domain
fuzzy classification
Opis:
Safety analysis of navigation over a given area may cover application of various risk measures for ship collisions. One of them is percentage of the so called near- miss situations (potential collision situations). In this article a method of automatic detection of such situations based on the data from Automatic Identification System (AIS), is proposed. The method utilizes input parameters such as: collision risk measure based on ship’s domain concept, relative speed between ships as well as their course difference. For classification of ships encounters, there is used a neuro-fuzzy network which estimates a degree of collision hazard on the basis of a set of rules. The worked out method makes it possibile to apply an arbitrary ship’s domain as well as to learn the classifier on the basis of opinions of experts interpreting the data from the AIS.
Źródło:
Polish Maritime Research; 2018, S 1; 14-21
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-objective weather routing of sailboats considering wave resistance
Autorzy:
Życzkowski, M.
Krata, P.
Szłapczyński, R.
Powiązania:
https://bibliotekanauki.pl/articles/260441.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
sailing vessels
weather routing
waves
navigation
resistance
Opis:
The article presents a method to determine the route of a sailing vessel with the aid of deterministic algorithms. The method assumes that the area in which the route is to be determined is limited and the basic input data comprise the wind vector and the speed characteristic of the vessel. Compared to previous works of the authors, the present article additionally takes into account the effect of sea waves with the resultant resistance increase on the vessel speed. This approach brings the proposed model closer to real behaviour of a sailing vessel. The result returned by the method is the sailing route, optimised based on the multi-criteria objective function. Along with the time criterion, this function also takes into account comfort of voyage and the number of performed turns. The developed method has been implemented as simulation application SaillingAssistance and experimentally verified.
Źródło:
Polish Maritime Research; 2018, 1; 4-12
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-16 z 16

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