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  5. Development of model and method of identification of navigation situations to increase efficiency of management in herogatic systems

Development of model and method of identification of navigation situations to increase efficiency of management in herogatic systems

I. Masik
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Description: The article deals with the development of a model and identification of navigation situations for increasing the efficiency of management in erratic systems. The traffic control in the areas of intensive shipping is implemented by specialized enterprises. Their main task is to prevent dangerous situations, in particular, to prevent dangerous convergence of ships. The information base of modern vessel traffic control systems is radar stations of the round-the-clock survey, supplemented by means of satellite navigation - an automatic identification system. But the intensity of navigation along the routes of traffic with each passing year is increasing. Therefore, new safety requirements are put forward when navigating, especially in water areas with difficult (constrained) conditions. The decision of the task of operational control of a ship in the conditions of intensive shipping occupies an important place in the general complex of decisions of tasks of management of a ship through direct influence on the level of general safety of navigation at the location of the vessel. For efficient operational control of a ship in the conditions of intensive navigation, it is necessary to apply situational control models. An assessment of the situation is one of the first steps in the decision-making process. That is why, when recognizing the situation, it is necessary to analyze the data of the parameters and evaluate the factors for making the optimal decisions. The paper presents a model for determining the navigation situation in the interaction of two ergatic systems depending on the state of the ship by the degree of safety (danger) for monitoring the parameters of the movement of ships in the event of their safety, or the choice of trajectories of vessel divergence in the event of their real or potential danger. Improved fuzzy mathematical model for determining the degree of danger of the external environment to the erratic system, which allows to formalize the capabilities of the decision makeron the solution of the situation. The developed method for recognizing the dangerous approach of vessels in an area with intensive navigation, characterized by a certain number of levels of danger of navigation situations, is calculated using fuzzy logic output. The developed method is the basis for building a decision support system for boatmasters and operators of the coastal vessel traffic management system for the development of adequate solutions in situations with different levels of danger.


Keywords: navigation, dangerous convergence, fuzzy sets, collision of ships, decision-making, assessment of the situation

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Reference:
 Masik, I.P. (2019), “Rozrobka modeli i metodu identyfikatsii navihatsiinykh sytuatsii dlia pidvyshchennia efektyvnosti upravlinnia v erhatychnykh systemakh” [Development of model and method of identification of navigation situations to increase efficiency of management in herogatic systems], Systems of Arms and Military Equipment, No. 1(57), pp. 98-106. https://doi.org/10.30748/soivt.2019.57.14.