Žilinská univerzita v Žiline

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Author: search.filters.author.Dianovský, Robert

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    Porovnanie efektívnosti základných koncepcií UAV vzhľadom na prevádzkové podmienky
    (University of Žilina, 2025) Kyrylova, Oleksandra; Dianovský, Robert
    Drones are increasingly being used in various fields to simplify and enhance human work. They are utilized for various purposes such as monitoring, mapping, agriculture, rescue operations, inspections, and many other goals. Their growing popularity has led to the need for selecting the appropriate type of drone for specific missions and operational conditions. The goal of this work was to compare the efficiency of the basic UAV concepts in relation to operational conditions, primarily multirotors and fixed-wing UAVs in various operational scenarios. Based on this analysis, a methodological tool in the form of a "Scoring System" was developed to assist users without technical knowledge in selecting the appropriate UAV. The system was designed as a universal tool and tested on two representative UAV concepts of similar size: the DJI Mavic 3 Enterprise (multicopter) and the senseFly eBee X (fixed-wing UAV). The "Scoring System" provides a simple and clear comparison of these drones based on criteria such as flight time, type of activity, accuracy and availability of RTK/PPK, maneuverability, environment, and operational conditions. Finally, a verification form was created, which was filled out by 16 experienced drone pilots to verify the functionality of the "Scoring System" in real-world conditions. The form contained specific scenarios in which the pilots, based on their experience and knowledge, had to select the appropriate type of drone for each task. This process helped confirm that the system is capable of correctly assessing UAV types and providing effective advice even for users without technical knowledge about drones. The results of this work can serve as a basis for further development of similar systems that will facilitate decision-making when selecting UAVs for the general public.
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    Využitie UAV pre monitorovanie a údržbu letiskovej infraštruktúry
    (University of Žilina, 2025) Levchenko, Vladyslava; Dianovský, Robert
    The aim of this bachelor thesis is to explore the possibility of implementing UAVs (Unmanned Aerial Vehicles) in the inspection and maintenance of airport infrastructure. The thesis focuses on identifying the most suitable areas in airport operations for UAV deployment and compares their advantages over traditional methods. Within this analysis, the technological capabilities of UAVs, their sensor equipment, and legal aspects of operation are examined in detail. Their application in airport operations and evaluation of implementation efficiency and cost-effectiveness are also investigated. In the practical part, a comparative analysis of two inspection approaches and methods for evaluating the effectiveness of UAV implementation into operations was used. For areas with the highest suitability for UAV deployment, a detailed methodology for their implementation was developed. The results of the thesis show that drones can significantly increase efficiency and safety in performing inspections, especially in areas with extensive and time-consuming operations. UAV implementation also brings economic benefits, such as reduced maintenance costs and limited disruption to airport operations. The conclusions of the thesis suggest that the optimal approach to UAV deployment in airport operations lies in their gradual integration in combination with traditional methods, leading to optimal results in terms of efficiency, safety, and costs.
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    Alternatívne metódy navigácie bezpilotných lietajúcich zariadení
    (University of Žilina, 2025) Močková, Chiara; Dianovský, Robert
    This article deals with the analysis and comparison of alternative navigation methods for unmanned aerial vehicles (UAVs). The aim of the article is to evaluate the effectiveness of selected navigation systems in conditions where traditional GPS-based methods may fail. The introduction presents traditional navigation methods and their limitations. The article focuses on alternative solutions such as visual navigation, celestial navigation, radio signal-based positioning, and inertial visual odometry (VIO). In the final part, the practical implementation of a visual navigation system using drone imagery and satellite images is described, along with the evaluation of its reliability at different flight altitudes. The results confirm the high potential of visual navigation as an independent or complementary system for UAV operations.
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    Analýza meteorologických balónov a sondážnych rakiet ako nástrojov na výskum atmosféry
    (University of Žilina, 2025) Malárik, Samuel; Dianovský, Robert
    This paper addresses the utilisation of meteorological balloons and sounding rockets for data collection for meteorological purposes. The first chapter introduces stratospheric balloons, meteorological balloons and sounding rockets. Their properties, components from which they are constructed, and their current applications are described. The second chapter compares the devices from three perspectives. The operational perspective focuses on flight profiles, control systems, possibilities for reusability, and risks associated with operation. The economic perspective concentrates on the costs associated with launches and possibilities for reduction. The legislative perspective examines the existing legislation pertaining to these devices. The third chapter presents a conceptual design for a sounding rocket, based on which approximate costs for its launch are determined. In conclusion are discussed the advantages and disadvantages of weatherballoons and sounding rockets and the potential area of application for sounding rockets in meteorological measurements is identified.
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    Using SDR receivers for UAV detection
    (University of Zilina, 2021) Dianovský, Robert; Novák, Andrej
    As the number of unmanned aerial vehicles (UAV) increases, new dangers arise for airports and other facilities. Because of this, the need for UAV detection and monitoring in areas, that might be endangered by their operation, is becoming an important topic. Introductory chapters are dedicated to the identification of potential risks posed by UAV operations and research of existing monitoring methods. The main goal of the paper, about which is this article, is to research the possibility of UAV detection by using accessible amateur SDR (Software-Defined Radio) for intercepting radio communications between UAV and its control station. Possible radio detection and localization methods were proposed based on the analysis of radio transmissions used in unmanned aerial systems. A simple theoretical design of SDR-based detection and localization system for monitoring unauthorized UAVs was developed by choosing appropriate methods. The principles and methods used in the design were experimentally demonstrated in several laboratory experiments. Successful realization of this design would possibly improve the availability of drone monitoring systems and reduce their production costs.