IMPROVEMENT OF THE METHOD FOR FORMATION OF A SAFE OPTIMAL ROUTE FOR VESSEL PASSAGE TAKING INTO ACCOUNT THE FORECAST OF WEATHER CONDITIONS, OPTIMAL DURING TRAFFIC TIME

Abstract

Management of the movement of sea vessels using automatic systems that allow to significantly improve quality indicators and ensure navigation safety is an integral part of shipping in modern conditions. New ways of improving automatic traffic control systems are implemented due to the wide application of advanced computer technologies. At the moment, one of the advanced concepts for creating automatic traffic control systems is the concept of e-Navigation and e-Voyage, as part of it. Modern ships can sail in difficult weather conditions, but wind, waves, currents and other hydrometeorological factors affect the speed and route of ships, and as a result, the efficiency of the passage. The movement of the ship taking into account the weather conditions requires the development of an optimal passage route based on weather forecasts, sea conditions and individual characteristics of the ship for specific conditions of the navigational situation. Within defined limits of weather and sea conditions, the term optimum is used to denote maximum crew safety and comfort, minimum fuel consumption, minimum underway time, or any desired combination of these factors. In the work, the method of forming a safe optimal route of the passage of ships taking into account the forecast of weather conditions, optimal in terms of movement time, has been improved, which allows to increase the efficiency of the passage time of the vessel taking into account the forecast of weather conditions when forming a safe route in the e-Navigation system. In the improved method, the combined application and mathematical apparatus of fuzzy sets and fuzzy logic is implemented to determine the possibilities of the ship's movement in accordance with the influence of hydrometeorological conditions. The proposed approach uses a hexagonal grid to approximate the swimming area and a system of production rules to determine the transition function between them.