Функціональні модулі та алгоритми синтезу цифрового зорового образу динамічної морської ситуації в прецизійній геоінформаційній системі реального часу

• Date: 2025
• Main Author: Kasim, Anisa
• Format: Article
• Language: Ukrainian
• Published: V.M. Glushkov Institute of Cybernetics of NAS of Ukraine 2025
• Subjects: прецизійна геоінформаційна система; картографічний фон; ідентифікаційний символ рухомого об’єкта; цифрова обробка фонограм; морська обстановка; цифровий зоровий образ; супутникова система навігації; маршрут; обробка GPS-даних у реальному часі; керованість; інформативність; точність; об’єктно-орієнтована база даних; функціональний модуль; інформаційна панель
• Online Access: https://jais.net.ua/index.php/files/article/view/433
• Journal Title: Problems of Control and Informatics

The key task of real-time precision geographic information systems is the synchronized display on an interactive cartographic background the identification images of recognized moving objects according to the input flow of navigation data with a given accuracy, detail, spatial and temporal scale. Systems of this class are suitable for wide application in aviation, precision agriculture, maritime navigation, defense, space satelliteʼs control, etc. The purpose of the work is to develop algorithms and functional modules for the synthesis of a digital visual image of the marine situation, which ensure the improvement of the quality of decision-making by each user of the system by increasing the accuracy and speed of processing input data and providing a highly accurate final result in the form of an objective, adequate reality, and a holistic picture of the situation. For this purpose, the study proposes a number of algorithms, in particular, an algorithm for synthesizing the cartographic background in the format of digital terrain models in accordance with a given information scale, an algorithm for assigning coordinates to nodal points of a given trajectory of the vesselʼs movement taking into account the selected scale, an algorithm for frame-by-frame display of the movement of a controlled marine object on a section of the trajectory between two neighboring nodes with a smooth display of the vesselʼs turn at the nodal point of the trajectory. Each of the algorithms is implemented in the corresponding interlinked software modules, which include: a module for interactive work with the map, a module for determining corrections to the coordinates of the vesselʼs center of gravity based on satellite data on the current coordinates of the receiving antenna, a module for integrating GPS data with information layers of cartographic objects. A diagram of the interaction of the functional modules of a real-time precision geoinformation system during the synthesis of a visual image of a dynamic situation is presented. The developed algorithms and software modules facilitate the interpretation of the image formed in real time and, as a result, increase the level of perception of the real situation by the human operator, which, in turn, leads to an improvement in the relevance of the decisions made by him for the accurate and safe control of the vesselʼs movement.