|
|
Ensuring availability and security in industrial networks
Zatloukal, Zdeněk ; Fujdiak, Radek (referee) ; Holasová, Eva (advisor)
Currently, a key aspect of industrial automation is ensuring a high level of security, reliability, and data availability in industrial communication networks. Given the rising cyber threats, it is essential to develop and implement advanced strategies for protecting industrial infrastructures. This thesis aims to perform a comprehensive analysis and development of security solutions for industrial networks, focusing on the Modbus RTU/TCP and MQTT communication protocols, which are crucial for the effective management of modern industrial operations. The work employs methodological approaches that combine theoretical research with practical experiments. It includes an analysis of existing protocols, the design of communication security through these protocols, and their subsequent testing in a controlled industrial environment to verify security, efficiency, and reliability. The analysis revealed significant deficiencies in the security of existing systems and led to the integration of new security measures into the industrial switchgear, which significantly improved the protection of data and communication infrastructure. The implemented solutions demonstrate significant progress in protecting industrial networks against various types of attacks. This thesis represents a significant contribution to the field of industrial network security. The results of the work provide valuable information for the further development of security technologies in the industry and offer practical guides for engineers and technicians who are working on improving the security status of industrial systems.
|
|
|
A System for On-Line Driving School Trip Recording
Voneš, Jakub ; Bartík, Vladimír (referee) ; Burget, Radek (advisor)
The subject of this thesis is the design and implementation of a client-server applications for collecting GPS data using a smartphone with Android OS. The system is used for real-time monitoring and recording vehicle’s movement on a server, where the data are adapted to the real road. This thesis is a continuation of the project DoAutoškoly.cz . The theoretical part of the thesis deals with GPS, real-time communication problems and the Android platform, including its application interface for GPS. In the next part of the thesis, this knowledge is used to design the whole system. The thesis continues with the implementation of a mobile application, the web module and the corresponding server application. The chapters continue to deal with real-time tracking and route editing. The last part is focused on testing and evaluation of the results.
|
|
|
Information System of a Tutor with the Possibility of Student Examination
Záruba, Ondřej ; Bartík, Vladimír (referee) ; Burget, Radek (advisor)
The main theme of this thesis is the modernization process of the existing system for support of teaching based on the requirements of Mr. Martin Říha. Firstly within the individual chapters we will gradually become acquainted with the basic principes of web application developing. Next We will focus on analysis of the current application and proposed methods and procedures used in its modernization and implementation changes. In more detail we will pay special attention to the chapters dealing with the design of new parts of the application and we will go through the whole process from design to implementation and testing. Attention will also be paid to special parts of the application that will allow teachers and students to interact in real-time communication in an environment similar to interactive whiteboards as we know them from schools and its use to make learning more attractive.
|
|
|
Web Application for Collaborative Schedule Management
Novák, David ; Polčák, Libor (referee) ; Dolejška, Daniel (advisor)
This thesis addresses the development of a web application for collaborative schedule management for universities and other institutions. The application aims to implement a schedule editor that allows users to collaborate in real-time using the WebSocket protocol and automatically evaluates conflicts between lessons. Before creating the application itself, existing solutions in the field of collaborative and scheduling editors were studied. The solution of the company IS4U, with whom this thesis is being realized, was studied in the most detail. A design for its improvement was created using an ER diagram and wireframes. The implementation predominantly utilizes TypeScript. On the server side, Node.js runtime environment and the Express.js framework are utilized. The client is implemented using the Vue.js framework. The thesis also includes user testing of the application and considerations for future improvements.
|
|
|
Integration Paradigms for Ensemble-based Smart Cyber-Physical Systems
Matěna, Vladimír ; Bureš, Tomáš (advisor) ; Carlson, Jan (referee) ; Brada, Přemysl (referee)
Smart Cyber-Physical Systems (sCPS) are complex systems performing smart coordination that often require decentralized and network resilient operation. New development in the fields of the robotic systems, Industry 4.0 and autonomous vehicular system brings challenges that can be tackled with deployment of ensemble based sCPS, but require further refinement in terms of network resilience and data propagation. This thesis maps the use cases of the sCPS in the aforementioned domains, discusses requirements on the ensemble based architecture in terms of network properties, and proposes recommendations and technical means that help to design network aware ensemble based sCPS. The proposed solutions are evaluated by the means of target systems simulation using state of the art realistic network and vehicular simulators.
|
|
|
A System for On-Line Driving School Trip Recording
Voneš, Jakub ; Bartík, Vladimír (referee) ; Burget, Radek (advisor)
The subject of this thesis is the design and implementation of a client-server applications for collecting GPS data using a smartphone with Android OS. The system is used for real-time monitoring and recording vehicle’s movement on a server, where the data are adapted to the real road. This thesis is a continuation of the project DoAutoškoly.cz . The theoretical part of the thesis deals with GPS, real-time communication problems and the Android platform, including its application interface for GPS. In the next part of the thesis, this knowledge is used to design the whole system. The thesis continues with the implementation of a mobile application, the web module and the corresponding server application. The chapters continue to deal with real-time tracking and route editing. The last part is focused on testing and evaluation of the results.
|
|
|
Information System of a Tutor with the Possibility of Student Examination
Záruba, Ondřej ; Bartík, Vladimír (referee) ; Burget, Radek (advisor)
The main theme of this thesis is the modernization process of the existing system for support of teaching based on the requirements of Mr. Martin Říha. Firstly within the individual chapters we will gradually become acquainted with the basic principes of web application developing. Next We will focus on analysis of the current application and proposed methods and procedures used in its modernization and implementation changes. In more detail we will pay special attention to the chapters dealing with the design of new parts of the application and we will go through the whole process from design to implementation and testing. Attention will also be paid to special parts of the application that will allow teachers and students to interact in real-time communication in an environment similar to interactive whiteboards as we know them from schools and its use to make learning more attractive.
|
|
|
Real-time web applications
Procházka, Tomáš ; Mittner, Jan (advisor) ; Pavlíčková, Jarmila (referee)
In my bachelor work I focus on two servers, which allow us to reach the real-time communication between the client and the server. My main goal is to familiarise PHP application programmers with the real-time communication problems on the internet, to point out differences from typical PHP applications programming and chiefly to focus on practical aspects of this issue. To achieve that, I have structured the dissertation work so that the minimum of the required theory would be explained at first and then I will focus on practical demonstrations, which will be properly commented. My main contribution to this issue is primarily a simple pattern for web pages running in Node.js environment that could be used as an initial point of any kind of web presentation.
|
guest ::
