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Wyszukujesz frazę "Ship Domain" wg kryterium: Temat


Tytuł:
Modeling of Ship Collision Risk Index Based on Complex Plane and Its Realization
Autorzy:
Xu, X.
Geng, X.
Wen, Y.
Powiązania:
https://bibliotekanauki.pl/articles/116223.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
risk
risk calculation
ship collision risk index
risk index
ships domain
Decision Support System (DSS)
modeling of ship collision risk index
ARPA
Opis:
Ship collision risk index is the basic and important concept in the domain of ship collision avoidance. In this paper, the advantages and deficiencies of the various calculation methods of ship collision risk index are pointed out. Then the ship collision risk model based on complex plane, which can well make up for the deficiencies of the widely-used evaluation model proposed by Kearon.J and Liu ruru is proposed. On this basis, the calculation method of collision risk index under the encountering situation of multi-ships is constructed, then the three-dimensional image and spatial curve of the risk index are figured out. Finally, single chip microcomputer is used to realize the model. And attaching this single chip microcomputer to ARPA is helpful to the decision-making of the marine navigators.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 2; 251-256
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 Clustering Analysis for Identifying Areas of Collision Risk in Restricted Waters
Autorzy:
Xiang, Z.
Hu, Q.
Shi, C.
Powiązania:
https://bibliotekanauki.pl/articles/116062.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
anticollision
restricted waters
ship domain
Opis:
The identification of areas of collision risk in restricted waters could play an important role in VTS services. Based on the concept of ship domain, this paper introduces a model for identifying collision risk between vessels in restricted waters, then puts forward an improved DBSCAN clustering algorithm for identifying areas of high collision risk, finally, the visualization algorithm is presented. The experimental results in this paper show the algorithm is capable of identifying and rendering areas of collision risk in restricted waters.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 1; 101-105
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intelligent autonomous ship navigation using multi-sensor modalities
Autorzy:
Wright, R.G.
Powiązania:
https://bibliotekanauki.pl/articles/117337.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
maritime autonomous surface ships (MASS)
artificial intelligence (AI)
intelligent autonomous ship navigation
autonomous ship
autonomous ships navigation
multiSensor modalities
unmanned ship
maritime domain awareness (MDA)
Opis:
This paper explores the use of machine learning and deep learning artificial intelligence (AI) techniques as a means to integrate multiple sensor modalities into a cohesive approach to navigation for autonomous ships. Considered is the case of a fully autonomous ship capable of making decisions and determining actions by itself without active supervision on the part of onboard crew or remote human operators. These techniques, when combined with advanced sensor capabilities, have been touted as a means to overcome existing technical and human limitations as unmanned and autonomous ships become operational presently and in upcoming years. Promises of the extraordinary capabilities of these technologies that may even exceed those of crewmembers for decision making under comparable conditions must be tempered with realistic expectations as to their ultimate technical potential, their use in the maritime domain, vulnerabilities that may preclude their safe operation; and methods for development, integration and test. The results of research performed by the author in specific applications of machine learning and AI to shipping are presented citing key factors that must be achieved for certification of these technologies as being suitable for their intended purpose. Recommendations are made for strategies to surmount present limitations in the development, evaluation and deployment of intelligent maritime systems that may accommodate future technological advances. Lessons learned that may be applied to improve safety of navigation for conventional shipping are also provided.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 3; 503-510
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prognozowany zasięg pola sztormowego cyklonu tropikalnego jako domena rozmyta cyklonu
Forecasted Storm Field Range of Tropical Cyclone as a Cyclone Fuzzy Domain
Autorzy:
Wiśniewski, B.
Medyna, P.
Powiązania:
https://bibliotekanauki.pl/articles/359767.pdf
Data publikacji:
2004
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
cyklon tropikalny
prognoza
domena rozmyta
EXPLO-SHIP 2004
tropical cyclone
forecast
fuzzy domain
Opis:
Podjęto próbę opisania zasięgu strefy sztormowej cyklonu z wiatrami przekraczają-cymi 34 w jako domenę rozmytą cyklonu na przykładzie prognoz +36 h dla Północnego Atlantyku.
The paper describes a tropical cyclone storm field range (winds exceeding 34 knots) as a tropical cyclone fuzzy domain, giving an example of 36H prognosis for the North Atlantic.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2004, 2 (74); 419-430
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Declarative ship domains in restricted areas
Autorzy:
Wielgosz, M.
Powiązania:
https://bibliotekanauki.pl/articles/135372.pdf
Data publikacji:
2016
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
ship domain
restricted area
questionnaire research
safety
declarative research
safety zone
Opis:
This paper presents the research results on declarative ship domains in restricted areas. The research was conducted for vessels of different sizes and speed relations. In order to determine the declarative ship domain, data were collected in the form of questionnaires. The influence of ship length and speed on the size and shape of its domain were analyzed. The detailed processes of data development and further approximation are shown. Declarative domains for ships of different sizes and speed relations are compared. As a result of the research, a mathematical model of a declarative ship domain showing the elliptical shape of the domain is presented. The intermediate and summary research results are presented and conclusions drawn.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 46 (118); 217-222
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efektywna domena statku na akwenie ograniczonym i jej zastosowanie w systemach statkowych
Effective ship domain in restricted area and its use in ship systems
Autorzy:
Wielgosz, M.
Powiązania:
https://bibliotekanauki.pl/articles/253937.pdf
Data publikacji:
2015
Wydawca:
Instytut Naukowo-Wydawniczy TTS
Tematy:
domena efektywna
statek
akwen ograniczony
ECDIS
effective domain
ship
restricted area
Opis:
W artykule przedstawiono wyniki badań nad domeną efektywną statku na akwenie ograniczonym. Badania prowadzono dla statków określonych wielkości. Dane zbierano z rejestrowanych zapisów symulacji prowadzonych w laboratorium systemów ECDIS. Analizowano kształt i wielkość domeny statków określonej wielkości i prędkości. Dokonano porównania domen bezwzględnych i względnych w celu ustalenia wzajemnych zależności oraz wpływu wielkości i prędkości jednostek na kształt i wielkość domeny. Przedstawiono wyniki w poszczególnych fazach badań, wybrane wyniki końcowe oraz sformułowano wnioski.
This paper presents the research results on effective ship domain in restricted area. The research was conducted for the vessels of different sizes and speed relations. The data has been collected from the records of predefined scenarios performed in ECDIS simulator. The influence of ship length and speed on size and shape of its domain were analyzed. Absolute and relative domains were compared. The intermediate and summary results were presented and conclusions were drawn.
Źródło:
TTS Technika Transportu Szynowego; 2015, 12; 1635-1642, CD
1232-3829
2543-5728
Pojawia się w:
TTS Technika Transportu Szynowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ship domain in open sea areas and restricted waters: an analysis of influence of the available maneuvering area
Autorzy:
Wielgosz, M.
Powiązania:
https://bibliotekanauki.pl/articles/117213.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
ship domain
open sea areas
restricted waters
available maneuvering area
Electronic Chart Display and Information System (ECDIS)
navigational safety assessment
safety at sea
simulation method
Opis:
A ship domain is nowadays an important navigational safety assessment criterion. Its shape and size depend on many factors. The available maneuvering area seems to be one of the most important of them. This article examines the influence of the available manoeuvring area on the shape and size of ship domain in the open sea and restricted waters. The research was conducted using a simulation method. Expert navigators participated in simulations using the ECDIS system. The domains of ship passages in open sea area and restricted area have been compared.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 1; 99-104
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ship domain in the restricted area – analysis of the influence of ship speed on the shape and size of the domain
Domena statku na akwenie ograniczonym – analiza wpływu szybkości statku na kształt i rozmiar domeny
Autorzy:
Wielgosz, M.
Pietrzykowski, Z.
Powiązania:
https://bibliotekanauki.pl/articles/359684.pdf
Data publikacji:
2012
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
domena statku
akwen ograniczony
badania symulacyjne
prędkość statku
ship domain
restricted area
simulation research
ship's speed
Opis:
The ship domain is one of the criteria proposed for the safety of ships in restricted areas. Its shape is influenced by many factors. The paper presents the results of ship domain determination in a restricted area. The influence of ship speed on the shape and size of the domain was examined. The method of determining ship domain based on ship traces and partial domains was characterized. The results have been presented and conclusions formulated.
Domena statku jest jednym z proponowanych kryteriów bezpieczeństwa statku na akwenie ograniczonym. Na jej kształt ma wpływ wiele czynników. W artykule przedstawiono wyniki badań nad wyznaczaniem domeny statku na obszarze ograniczonym. Rozpatrzono wpływ szybkości statku na kształt i wielkość domeny. Scharakteryzowano metody wyznaczania domeny na podstawie śladów statku i na podstawie domen częściowych. Przedstawiono wyniki i sformułowano wnioski.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2012, 30 (102); 138-142
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The ship safety zones in vessel traffic monitoring and management systems
Autorzy:
Wielgosz, M.
Powiązania:
https://bibliotekanauki.pl/articles/135001.pdf
Data publikacji:
2016
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
navigational danger
safety
safety frame
safety zone
ship domain
traffic monitoring
Opis:
This paper presents the problem of the “know-how” needed by the operators of vessel traffic supervision, monitoring, advisory and safety zone management systems required and maintained by marine navigators on their ships. The problem of the proper and correct interpretation of these systems is raised. Different types of ship safety zones, concerning both anti-collision and navigational purposes are presented, introducing the concept of hydrographic ship domain. Anti-collision and hydrographic domains were compared in order to establish mutual dependence. The factors influencing the two types of ship domains were analysed. The author proposed their merging and replacement with one universal domain, discussing its advantages and disadvantages. The analysis of the factors influencing the shape and size of such ship safety zones in conducted. The results in the different phases of research were presented and conclusions were drawn.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 48 (120); 153-158
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ship domain model for multi-ship collision avoidance decision-making with COLREGs based on artificial potential field
Autorzy:
Wang, T.F.
Yan, X.P.
Wang, Y.
Wu, Q.
Powiązania:
https://bibliotekanauki.pl/articles/116475.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
ship domain
ship domain model
collision avoidance
colregs
Artificial Potential Field (AFP)
decision-making
Predicted Area of Danger (PAD)
Closest Point of Approach (CPA)
Opis:
A multi-ship collision avoidance decision-making and path planning formulation is studied in a distributed way. This paper proposes a complete set of solutions for multi-ship collision avoidance in intelligent navigation, by using a top-to-bottom organization to structure the system. The system is designed with two layers: the collision avoidance decision-making and the path planning. Under the general requirements of the International Regulations for Preventing Collisions at Sea (COLREGs), the performance of distributed path planning decision-making for anti-collision is analyzed for both give-way and stand-on ships situations, including the emergency actions taken by the stand-on ship in case of the give-way ship’s fault of collision avoidance measures. The Artificial Potential Field method(APF) is used for the path planning in details. The developed APF method combined with the model of ship domain takes the target ships’ speed and course in-to account, so that it can judge the moving characteristics of obstacles more accurately. Simulation results indicate that the system proposed can work effectiveness.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 1; 85-92
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kształt i rozmiary stref bezpieczeństwa statku
Shape and Dimension of Ships Safety Zones
Autorzy:
Uriasz, J.
Powiązania:
https://bibliotekanauki.pl/articles/360593.pdf
Data publikacji:
2006
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
bezpieczeństwo nawigacji
strefa bezpieczeństwa statku
domena statku
pas ruchu
strefa zabroniona
EXPLO-SHIP 2006
safety of navigation
ship's safety zone
ship domain
traffic lane
forbidden zone
Opis:
Bezpieczne prowadzenie statku wymaga ciągłej identyfikacji i oceny sytuacji nawigacyjnej. Ocena bezpieczeństwa statku własnego sprowadzana jest często do ustalenia i obserwacji stref wokół statku. Pojawienie się obiektów obcych w tych strefach powoduje powstanie zagrożenia bezpieczeństwa nawigacji i wymaga jego oszacowania oraz podjęcia odpowiednich przeciwdziałań. Innym podejściem jest sytuacja, w której zachowanie odpowiedniego poziomu bezpieczeństwa nawigacji wymaga nawigowanie w ramach ustalonej strefy (np. strefa rozgraniczenia ruchu). W artykule przedstawiono różne rodzaje stref bezpieczeństwa statku oraz ich przeznaczenie.
Ship's safety requires continuous identification and assessment of the navigational situation. The assessment of own ship's safety is often reduced to watching the established zones around the ship. The safety level is decreased when another object disturbs the established zones, which requires evaluating the risk and making adequate countermeasures. The situation when we have to maintain an adequate level of safety leads to another approach, i.e. it requires navigating the ship within an established zone (traffic separation scheme). In the paper different kinds of ship's zones and their purpose are presented.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2006, 11 (83); 343-354
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
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:
Multi criteria route selection with custom domain shape
Autorzy:
Szłapczyńska, J.
Powiązania:
https://bibliotekanauki.pl/articles/320871.pdf
Data publikacji:
2006
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
domena statku
unikanie kolizji
ship's domain
anticollision
Opis:
The paper describes a multi criteria vessel route selection system designed to support VTS systems. The system is comprised of three cooperating modules: simulation, collision risk estimation and multi criteria decision making. Given the set of alternative routes, the initial and goal positions and velocities of own and target ships the output of the system is a ranking of all considered routes. This ranking enables the VTS operator to produce a proper route recommendation which is then sent to the navigators. The additional advantage of the system described here is its ability to support custom shape of ship domain.
Źródło:
Annual of Navigation; 2006, 11; 123-136
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determining the best possible speed of the ship in shallow waters estimated based on the adopted model for calculation of the ship’s domain depth
Autorzy:
Rutkowski, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/1573899.pdf
Data publikacji:
2020
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
safe speed
best possible speed
optimal speed
ship’s domain
safety depth
under keel clearance (UKC)
navigational risk factor
ship squat
Opis:
The purpose and scope of this article is to present the best marine practices used to determine the ship’s domain depth (compared to the safety depth parameter in ECDIS) and the safest and best possible speed (also known as optimal speed) of the ship in restricted sea areas limited by the depth of navigation waters. The author also presents a method that can be used to estimate the safe speed of a ship in shallow waters and the so-called navigational risk factor (specified in the range from 0 to 1), using the safety depth parameter specified in ECDIS based on the analysis of a three-dimensional model of the ship’s domain. The essence of the method proposed in this paper is a systematic approach to the operation of a seagoing ship in the aspect of assessing its navigation safety (navigational risk factor) when manoeuvring in restricted sea areas, in particular in shallow waters including navigable canals and fairways.
Źródło:
Polish Maritime Research; 2020, 3; 140-148
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Safety of Shipping when Navigating on the PS Class Container Vessel “Emma Maersk” While Approaching DCT Terminal in Gdańsk Port Północny
Autorzy:
Rutkowski, G.
Powiązania:
https://bibliotekanauki.pl/articles/116571.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
port operations
port of Gdansk
container vessel
Deepwater Container Terminal (DCT) in Gdansk
navigational risk
safety at sea
safety of shipping
ship’s domain
Opis:
In this paper author presents the methods that can be used for estimating the safety of shipping (navigational risk) in the restricted sea areas of the Gulf of Gdansk by means of a three-dimensional model of ship’s domain specified for the PS Class container vessels “Emma Maersk”. The essence of the method suggested in the thesis is the systematic approach to a sea vessel operation in the aspect of estimating its safety while approaching DCT terminal in Gdańsk Port Północny in the divergent exterior conditions.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 3; 481-488
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł

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