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    Wyświetlanie 1-3 z 3
    Tytuł:
    Proposal of the prediction algorithm of the object’s position in restricted area
    Autorzy:
    Dramski, M.
    Mąka, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/393878.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Stowarzyszenie Telematyki Transportu
    Tematy:
    prognoza
    obszar zastrzeżony
    nawigacja
    transport
    najkrótsza ścieżka
    prediction
    restricted area
    navigation
    shortest path
    Opis:
    In this paper an algorithm of finding the optimal path of an object in restricted area, focusing on the position prediction, is presented. Moving in the restricted area requires not only the knowledge of this area, but also the current and future position of other objects present in it. These informations let to minimalize the possible collision risk. It’s significant not only due to the safety, but also to the economic factors. This approach is the further development of the investigations in the area of finding the optimal path in restricted area, carried out at the Maritime University of Szczecin. The authors propose the algorithm for the use in the decision support systems in maritime navigation, but it could be also applied in the other areas of transport.
    Źródło:
    Archives of Transport System Telematics; 2015, 8, 2; 13-16
    1899-8208
    Pojawia się w:
    Archives of Transport System Telematics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Clusterization methods in detecting the restricted areas for sea transport
    Autorzy:
    Dramski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/393349.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Stowarzyszenie Telematyki Transportu
    Tematy:
    data mining
    clusterization
    restricted area
    shortest path
    eksploracja danych
    klasteryzacja
    obszar zastrzeżony
    najkrótsza ścieżka
    Opis:
    Clusterization is one of the data mining techniques which is responsible for classifying data. Selection of the proper parameters leads to some desired clusters behavior. Th is fact can be used in detecting the restricted areas for ships and other units. Th e allowed area can be marked as a data cluster and vice versa. Th e other advantage is the fact that each cluster consists of the set of points which can be used to fi nd the shortest path in given area. In this paper the use of clusterization in detecting restricted areas is described. Few methods are analyzed and the conclusions presented.
    Źródło:
    Archives of Transport System Telematics; 2017, 10, 1; 24-27
    1899-8208
    Pojawia się w:
    Archives of Transport System Telematics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimization of LNG terminal parameters for a wide range of gas tanker sizes: the case of the port of Świnoujście
    Autorzy:
    Gucma, Stanisław
    Gucma, Maciej
    Powiązania:
    https://bibliotekanauki.pl/articles/224029.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    LNG terminal
    port waterways
    optimization
    navigational safety
    restricted areas
    terminal LNG
    portowe drogi wodne
    optymalizacja
    bezpieczeństwo nawigacyjne
    obszar zastrzeżony
    Opis:
    LNG terminals are built to handle tankers of specific size, with cargo capacities within a narrow scope. This is related to the differences in cargo, fender and mooring systems used for LNG tanker handling of various sizes. The research problem solved in the article is the development of the method for optimal design of a universal LNG cargo handling facility that enables safe operations of LNG tankers in a wide range of cargo capacity that covers almost entire spectrum of global fleet tanker sizes. The article presents a methodology of optimizing the parameters of LNG cargo terminals to accommodate both small bunker ships with cargo capacity of 500 m3 (50 metres in length) to Q-flex type tankers capable of carrying up to 220 000 m3 (320 m in length). The authors have determined conditions for the safe operation of these tankers in sea LNG terminals and described differences in the construction of cargo, fendering and mooring systems. The optimization of both location and terminal parameters for a wide range of gas tanker sizes as well as approach channels leading to the LNG berths was performed using a specially designed two-stage simulation method of optimization. In the first stage the best location of a universal LNG terminal and its berths in the existing port basin is determined. The second stage defines optimal parameters of approach waterways to the berths of a universal LNG terminal. The optimization criterion at both stages was the minimization of the costs to build and to operate a universal LNG terminal. The developed optimization methodology was actually used in the design of the universal LNG terminal in the outer port of Świnoujście. The tests made use of real time simulation (RTS) and non-autonomous models of ships, in which ship movement is controlled by a human (pilot, captain). Simulation tests were performed on a multi-bridge ship handling Polaris simulator with a 3D projection, from Kongsberg Maritime AS. This full-mission bridge simulator (FMBS) is located at the Marine Traffic Engineering Centre, Maritime University of Szczecin. Two simulation ship movement models were built and verified for testing the manoeuvres of port entry and berthing. These are: Q-flex type tanker (length: 320 m) and an LNG bunker ship, 6,000 m3 capacity, 104 m in length. The test results were used in the design of the universal LNG terminal in the outer port of Świnoujście and approach waterways leading to the berths (now this investment project is in progress).
    Źródło:
    Archives of Transport; 2019, 50, 2; 91-100
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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