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Wyszukujesz frazę "vessel course changes" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
DSSA+: distributed collision avoidance algorithm in an environment where both course and speed changes are allowed
Autorzy:
Hirayama, K.
Miyake, K.
Shiotani, T.
Okimoto, T.
Powiązania:
https://bibliotekanauki.pl/articles/116483.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
collision avoidance
collision avoidance algorithm
vessel course changes
vessel speed changes
Distributed Stochastic Search Algorithm (DSSA)
colregs
ARPA
Distributed Constraint Optimization Problem (DCOP)
Opis:
Distributed Stochastic Search Algorithm (DSSA) is one of state-of-the-art distributed algorithms for the ship collision avoidance problem. In DSSA, whenever a ship encounters with any number of other ships (neighboring ships), she will select her course with a minimum cost after coordinating their decisions with her neighboring ships. The original DSSA assumes that ships can change only their courses while keeping their speed considering kinematic properties of ships in general. However, considering future possibilities to address more complex situations that may cause ship collision or to deal with collision of other vehicles (such as mobile robots or drones), the options of speed changes are necessary for DSSA to make itself more flexible and extensive. In this paper, we present DSSA+, as a generalization of DSSA, in which speed change are naturally incorporated as decision variables in the original DSSA. Experimental evaluations are provided to show how powerful this generalization is.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 1; 117-123
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Graphical tools to facilitate the selection of manoeuvres to avoid collision
Autorzy:
Vagushchenko, L.
Vagushchenko, A.
Powiązania:
https://bibliotekanauki.pl/articles/24201423.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
colregs
collision avoidance
multi-vessel situations
both course and speed changes
evasive maneuver
representative discrete set
enumerating method
color-coded diagrams
Opis:
Graphical tools have been proposed to facilitate the selection, evaluation, and correction of anticollision actions in situations with moving and stationary obstacles, assuming that such situations are not extreme or ordinary with sailing vessels and that the target movement parameters are constant or their upcoming change is known. The choice of evasive combined Z‐manoeuvre (both course and speed change at one point and return to the original values of these parameters at another point) and one combined action (both course and speed alteration at the selected point) were considered. The graphical tools developed contain diagrams, showing eight zones of actions, and special marks of targets at the moment of their closest approach to the own ship. In view of the COLREG and good seamanship, these zones were arranged in order of application priority. The results of the enumeration of a representative discrete set of possible manoeuvre variants were used to construct the diagrams.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 3; 625--633
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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