Archívy autora: Mikuláš Kožlej

LÍŠKOVÁ, Dominika: Solving complex modeling and simulation tasks in mobile robotics – the digital twin concept [Abstract]

The thesis is dedicated to applications in mobile robotics in the context of the concept of creating a digital twin. The thesis includes the design of a methodical procedure for creating a digital twin for a differential drive mobile robot. It deals with mathematical modelling tasks and experimental identification of robot actuators, followed by the design of control structures for selected control objectives. The thesis also involves the creation of a complex library and educational application for creating and verifying a model of a mobile robot, with validation on the laboratory plant ModBot. Last but not least, the thesis deals with developing an application for monitoring detectors for the ALICE experiment at CERN as part of the project „Experiment ALICE on LHC CERN“.

PÁNIK, Michal: Realization of Database Applications Interconnected with SCADA and Embedded Systems [Abstract]

The bachelor thesis deals mainly with the issue of data flow control in database information systems interconnected with SCADA and Embedded systems. The aim of this work is to analyze theoretical methods of design database information systems, to design and implement software product DARMA and, at the last to process scripts for visualization and archiving of data in WinCC OA environment. The purpose of DARMA is to provide access to off-line data of ALICE experiment in CERN laboratory and to improve the quality of internal processes and to simplify the work of scientific and technical staff. The thesis also describes how to integrate SCADA visualization tools with Oracle database information systems. Methodical approach for creation of distributed control systems was used at this thesis.

SEDLÁK, Patrik: Digital twin for a modified mechatronic ball-on-surface platform in MATLAB/Simulink environment [Abstract]

This bachelor thesis focuses on the hardware modernization of a ball on plate (BoP) laboratory platform, the design of a digital twin (DT) methodology, the implementation of selected control algorithms, and the development of a computer vision algorithm. The BoP system was identified as two subsystems: the servomotor subsystem parameters were identified using measured data from the physical laboratory model and a chosen linear structure, while the BoP dynamics subsystem, represented by a mathematical model in the form of a nonlinear differential equation, had its coefficient of restitution further identified. By applying the proposed identification methodology, a grey-box BoP model was obtained, which serves as a digital twin for the laboratory BoP model. Based on the resulting BoP model, which represents a DT for the laboratory model, control algorithms were designed based on the linearized model. The proposed PID and optimal state-space control algorithms (LQI/MPC) were verified through simulations in control structures, and the obtained control results using the DT for various objectives were compared with control results obtained using the physical BoP laboratory model. Furthermore, the thesis addresses software tasks within the international collaboration with the ALICE experiment at CERN, specifically the modernization of the AGRANA monitoring application and the design of the DARMA4 information system.

HANC, Erik: Design of Information System for Remote off-line Access to LHC Data within ALICE Experiment in CERN [Abstract]

Master thesis deals with the design and implementation of the software solution for a remote access to LHC data within ALICE experiment at CERN. In the beginning a main task of the project and the research method, that describes the process of realization of information system is defined, followed by the analysis of the current state. On the basis of analysis, new software solution is designed. The Analysis includes a changes realized in the new solution when compared to its previous version. Chapter of the design includes data models and diagrams of the processes, which are the base for the further process of implementation. Design of the solution also includes interconnection of screens of the graphical user interface. Chapter of the technological resources includes databases, programming languages and used architecture, needed for an implementation of the developed web application. By means of diagrams of the proccesses, data flows within information system are displayed. Set of configurations for a request to LHC data and diagnostics of the information system are recorded in the system database. After data quality analysis and observation tests, the new software solution is ready to use. Last part of the thesis describes the created user interface by means of algorithms and description of particular graphical user interfaces.

PÁNIK, Michal: Implementation of an information system for accessing LHC data within the ALICE-CERN experiment [Abstract]

The diploma thesis deals with the implementation of systems for remote data access in cooperation with the international laboratory CERN in Geneva. The first chapters discuss extensions of the DARMA information system for archive management. The main goal of this work is to design and enhance the system with new functionalities and solve known shortcomings, and thus qualitatively increase the potential of the DARMA system in the context of the ALICE DCS detector control system. The final part of the work deals with the analysis of historical data and the design of a system for the anomaly and failure detection in the infrastructure of high voltage channels within the TRD detector.

KOPECKÝ, Martin: Realization of Information Systems for Database Applications Interconnected with SCADA and Embedded Systems – ALICE CERN [Abstract]

This master’s thesis focuses on the analysis, design, and implementation of modifications to the DARMA information system within the scope of the ALICE CERN experiment. The objective of the study is to analyze the currently deployed version of the DARMA IS, modify and remove the limitations of the existing solution, and implement modification requirements from the ACC DSC group leadership. Among these requirements are improved integration with multiple archival databases, providing support for alert selection, generation of statistical reports, and detection of improperly configured archiving datapoints. An analysis of the current state of the DARMA information system was conducted as part of the thesis, and areas that could be improved were identified. Based on a requirements analysis, a new concept of a modular architecture based on application libraries was proposed, and the relevant modifications to the information system’s functionality were made. The modified DARMA information system was experimentally verified in the laboratory conditions of CMMRaPI at KKUI using a data copy from the ALICE CERN experiment. The thesis also includes a manual for adding additional archival databases. As part of the system modification, we expanded the web interface with contextual help to improve the user experience. The modified DARMA system is a modern, efficient, and easily expandable information system that allows for better processing and analysis of data from various archival databases used in the ALICE CERN experiment.