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Zastosowanie zbiorów rozmytych do sterowania ruchem statku w sytuacjach kolizyjnych

Mohamed-Seghir M.

Zeszyty Naukowe Akademii Morskiej w Gdyni

2006

nr 55

96-105

W artykule przedstawiono model procesu sterowania statkiem w sytuacjach kolizyjnych jako wieloetapowego procesu podejmowania decyzji w rozmytym otoczeniu. W pracy zawarto badania symulacyjne algorytmu wyznaczania optymalnej trajektorii bezpiecznej statku w sytuacjach kolizyjnych oraz badania wrażliwości modelu procesu bezpiecznego sterowania statkiem w sytuacjach kolizyjnych w rozmytym otoczeniu na zmiany parametrów modelu procesu i niedokładności danych uzyskanych z urządzeń nawigacyjnych.

In this paper a safe ship trajectory in collision situation is presented as a multistage decision-making in a fuzzy environment, to determine optimal safety trajectory, according to the international Rules of the Road at Sea, it is used an algorithm of a branch and bound method. To prove application of the proposed conception, computer simulations are presented in a graphical form.

The problems of Collision Avoidance at Sea in the Formulation of Complex Motion Principles

Żak B.

International Journal of Applied Mathematics and Computer Science

2004

Vol. 14, no 4

503-514

The paper presents a mathematical model of a collision situation for objects afloat based on the rules of a multiple complex motion. It also contains an analysis of the presented model and draws some conclusions from it. The method used to determine the minimum-time control of ships in a situation of colliding with other objects afloat is presented for a mathematical model of a collision situation. It also includes the results of a simulation study conducted by means of this method. A parallel approach of a ship to an encountered object was studied, i.e., a situation generating a critical case which is the collision of two ships.

Optimization of ship's trajectory in collision situation

Żak B.

Journal of Technical Physics

2002

Vol. 43, no 1

69-79

The paper presents a method used to determine the minimum-time control of ships in a situation of collision with other objects afloat. It also includes the results of simulation study conducted by means of this method. Parallel approaching of a ship to an encountered object was studied, i.e. a situation generating a critical case - collision of two ships.

Collision situation of objects afloat as multiple complex motion

Żak B.

Journal of Technical Physics

2002

Vol. 43, no 1

81-90

The paper presents a mathematical model of a collision situation of objects afloat. To describe it, the rules of a multiple complex motion were used. The paper contains also an analysis of the model presented and the conclusions drawn from it.