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Industry 4.0 Asset Administration Shell design
Tkadlec, Prokop ; Jirsa, Jan (referee) ; Kaczmarczyk, Václav (advisor)
The aim of this work is to create a simulation model that will correspond to the real TestBed Barman network, with the help of AAS data model devices. The simulation model will be created using the OMNeT++ simulator. The thesis describes the concepts of Industry 4.0, especially AAS and the individual cells of TesBed Barman. Afterwards the AAS models of production cells and intelligent products created by using the AASX Package Explorer program are described. The practical part describes the created TestBed simulation model and its individual modules that were created. Two simple simulation scenarios are then described for the simulation model together with the variables to be monitored.
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Efficient solid fuel boiler control by PLC
Pirochta, Josef ; Radil, Lukáš (referee) ; Bátora, Branislav (advisor)
This thesis focuses on the efficient control of a solid fuel boiler using a programmable logic controller (PLC). The objective is to develop and optimize a control system that will enable safe, reliable and efficient operation of the boiler. The thesis includes a theoretical analysis of the safety requirements, a description of the parameters of the VERNER A251 boiler and the design of the regulation using PID controllers. The output is a complex software program designed in Mosaic environment, which simulates the boiler operation in multiple scenarios and allows its adjustment and analysis. The simulations have been designed to accurately represent the various boiler states from ignition to fault conditions, providing a comprehensive view of the entire control process.
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Design and implementation of a platform for control LLC-type inverter with a wide input supply voltage range using a FPGA circuit
Pokorný, Ondřej ; Levek, Vladimír (referee) ; Prokop, Roman (advisor)
This master’s thesis deals with the emulation of LLC converter control with a wide input voltage range using a created emulation platform. The first part of this work is focused on the design of resonant converters with a wide input voltage range. Based on theoretical knowledge, an adjustment of the emulation LLC converter is made. The converter modification is concluded with a simulation, where the correctness of the design and the fulfillment of the ZVS parameter in the entire input voltage range are verified. In the next part of the work, an analysis of the control issues of resonant converters, more precisely LLC type resonant converters, is carried out. The acquired knowledge is used for the design of a new emulation platform, which will serve for the emulation of LLC converter control with a wide input voltage range. The last part of the work is the creation of an emulation program for FPGA in SystemVerilog language. The work is concluded by verifying the functionality of the emulation on physical hardware.
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Modeling of temperature phenomena in Li-Ion cells
Grézl, Vojtěch ; Sedlařík, Marek (referee) ; Vyroubal, Petr (advisor)
This thesis deals with the issue of heat generation in Li-ion batteries, which can have a negative impact on the battery properties and functionality. The thesis can be divided into two main parts. The theoretical part focuses on the theoretical description of Li-ion batteries, heat generation, thermal effects, ideal operating temperatures, modelling of these situations, the occurrence of different types of abuse and the consequences that can arise from incorrect or inadequate thermal management. The practical part focuses on the analysis of the results from the discharge temperature measurements for different load values C and the initiation of the effect known as thermal runaway for 18650 Li-ion cell, and then on how to simulate these behavior in the Ansys Fluent.
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Household consumption diagram model
Bočan, Tomáš ; Brettschneider,, Zbyněk (referee) ; Radil, Lukáš (advisor)
The thesis deals with the creation of a model of the household consumption diagram. Firstly, the thesis outlines an analysis of current approaches to creating household consumption diagrams with their evaluation. The thesis then describes the input data, the procedure for creating the model itself, and in the last section, a simulation of household consumption is performed and an evaluation of the accuracy of its prediction, based on reference data.
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Wireless charger based on the NFC Forum WLC 2.0 standard
Rada, Vojtěch ; Junasová, Veronika (referee) ; Šteffan, Pavel (advisor)
This diploma thesis is focused on wireless charging technology according to the Wireless Charing 2.0 standard by the NFC Forum and the design of an ASIC circuit of a device functioning as a listener, where the primary emphasis is placed on the digital design of this circuit. In the beginning the work deals with a general theory, gradually discussing all the standards from the NFC Forum that are necessary for the control protocol design according to the Wireless Charging 2.0. Subsequently, the analysis of a real communication in the development kit for this standard is conducted, based on which the system design of the digital circuit is made. The designed circuit is described by VHDL language and verified by running the basic simulations to check the functionality of the designed parts of the circuit. In the final part of the thesis, a prototype module with the proposed system is fabricated, implemented in an FPGA with a connected battery charger circuit and its functionality is tested in practice.
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The Monte Carlo Stochastic Method for Price Simulation
MÜLLEROVÁ, Sindy
This bachelor thesis focuses on predicting gold prices using the Monte Carlo model and utilizes data obtained from Yahoo Finance. The data used for the simulation covers the period from 2000 to 2023. Based on this data, values for the next 3 years are simulated. The prediction model provides optimistic, neutral, and pessimistic scenarios of future price development, represented by the upper quartile, median, and lower quartile. The findings show that in the optimistic scenario (upper quartile), gold prices continue to rise, indicating a consistently strong market trend. In contrast, the pessimistic scenario (lower quartile) indicates only a slight decline in prices, suggesting price stability. The neutral scenario (median) shows a slightly rising trend, ensuring that the value of the initial investment is preserved. The analysis carried out in this paper assesses the profitability of gold investment mainly due to the positive and stable price trend and offers valuable insights for investment decision-making.
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Improving material flow by using a logistics train
Grepl, Radovan ; Urbanovský, Jan (referee) ; Zeizinger, Lukáš (advisor)
The main content of this master´s thesis is the analysis of the current state and the proposal an internal supply of assembly lines in the company Koyo Bearings s. r. o. This company specializes in the production of bearings mainly for the automotive industry. The supply of the lines operates on the principle of Mikl-run. The practical part focuses on creating a simulation model using the Plant Simulation simulation software from Siemens PLM Software. Based on the created model, several variants were proposed to optimize the loading of the packaging material. These variants were analyzed and evaluated.
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Low-frequency active threshold-less voltage detectors
Litovska, Anna ; Theumer, Radek (referee) ; Šotner, Roman (advisor)
This bachelor thesis deals with various solutions of the active topology of voltage detectors and rectifiers that do not use diodes. Specifically, it focuses on discrete detectors with multipliers and voltage-to-current converters, a discrete peak detector with transconductors, and an integrated RMS detector with an AD734 multiplier. This thesis includes theoretical design of parameters of circuits for required features as well as verification by computer analysis (PSpice) and experimental measurement. This work includes documentation for construction of the product, including the block arrangement and the design of the printed circuit board.
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Paint shop Process Improvement through Predictive Simulation
Machačová, Simona ; Hromková, Ivana (referee) ; Videcká, Zdeňka (advisor)
This thesis focuses on the use of simulation to optimise processes in a paint shop. The aim of the thesis is to analyse the existing production processes and suggest improvements using simulation. In the analytical part of the thesis, the processes in the paint shop are described in detail and Petri nets are used to describe the logic of the processes in the paint shop. In the design part of the thesis, the problem and objectives are formulated, and the design of the simulation model is presented. The design describes the elements and methods used in the Plant Simulation software in which the model is created. Furthermore, different scenarios are simulated to optimize the painting process and the deposition areas. The simulation results are compared with the actual state of the paint shop. Finally, the results are discussed and recommendations are proposed to optimize the paint shop processes using simulation. This work presents new approaches to process optimization in industrial manufacturing.
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