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Application of Slepian sequences for Spectral Analysis
Šimeček, Vít ; Jirgl, Miroslav (referee) ; Mihálik, Ondrej (advisor)
This thesis is focused on the Digital signal processing using the Slepian transform, which is a option of gaining a signal spectrum. The signal is transformed to the Slepian orthogonal base, which can be generated in Matlab by the function "DPSS". Furthermore, this spectrum is in the thesis compared with classic Fourier spectrum and cosine spectrum. Further, a data compression is computed and bases are compared to each other. By the Slepian base, a simple signal is extrapolated.
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Approximation of Human Behaviour in Case of Double Integrator System Control Using McRuer Models
Vácha, Jan ; Mihálik, Ondrej (referee) ; Jirgl, Miroslav (advisor)
In this bachelor's thesis, the basics of modeling human-machine systems using McRuer's theory for single-input systems are described. The main goal of the work is to verify the validity of McRuer's theory on a wider range of measured subjects for two different controlled systems. The thesis describes the creation of a scheme for measuring the responses of a human operator in the form of a system controller, and also describes the function and principle of scripts used to simplify the evaluation of measured data. Subsequently, the data are processed and an evaluation of McRuer's theory is carried out.
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Model of hot water exchanger station
Major, Martin ; Jirgl, Miroslav (referee) ; Sýkora, Tomáš (advisor)
This thesis focuses on a custom-built heat exchanger station for teaching in the laboratories of the Institute of Automation and Measurement Technology. It deals with the identification of the already installed components in the station model, the wiring of the electrical switchboard, and the programming of the system for its control. A heat exchange station is a device that is used to safely transfer heat energy between heat transfer fluids. The entire station and the heat exchange process are controlled by a PLC from Siemens and operated via an operator panel. The control program and the visualization of the operator panel were created in the Tiaportal development environment from Siemens. The programming language used is FBD and SCL.
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Electromagnetic recoil system for simulated weapons
Vladík, Jakub ; Jirgl, Miroslav (referee) ; Baštán, Ondřej (advisor)
Main goal of this work is to analyze the feasibility of an electromagnetic recoil simulator on weapon replicas. The thesis explains the basic function of self-loading firearms based on the HK 416 weapon and then the concept of recoil and its meaning. Lists today's recoil compensation options. It then defines possible electromagnetic solutions as a replacement for the existing pneumatic recoil system. Some posibble solutions mentions DC motor, solenoid, linear motor and railgun as possible. The thesis lists DC motor, solenoid, linear motor and railgun as possible solutions. The best solution is a tubular linear motor combined with a power supply containing Li-pol batteries.
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Comparison of Image Enhancement Techniques in Scanning Electron Microscopy
Macejka, Radoslav ; Jirgl, Miroslav (referee) ; Mihálik, Ondrej (advisor)
The thesis contains an analysis of the scanning electron microscope image scanning method. It proposes a method of improving the output image by adding filtering which is subsequently tested and evaluated. It discusses the possibilities of implementing the proposed changes and possible further improvements arising from the results of the experiment. Creates custom software tools for testing filtering methods. It also investigates the possibility of adapting histogram equalization as a universal luminance transform for scanning electron microscopy applications.
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A System Control Using Simulink PLC Coder Tool
Musil, Viktor ; Benešl, Tomáš (referee) ; Jirgl, Miroslav (advisor)
The thesis deals with the introduction to the tool for automatic generation of PLC code in MATLAB environment and the platform for simulation of dynamic systems. The work includes the installation and revival of the platform and then simulation on the platform. It also deals with connecting the simulator to the PLC and creating a regulation loop. The work also includes the design of the controller with subsequent generation of PLC code. The result of the work is the control of the second order system on the PLC using the generated code and PLC library functions.
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The library for working with sensors allowing distributed processing in FORTH language
Kudela, Kryštof ; Valach, Soběslav (referee) ; Jirgl, Miroslav (advisor)
This semestral work is about programming language Forth, variation of operating systems, analysis of microcontroller unit, definition of intelligent sensors and distributed systems and distributed computing. The purpose of this work is introduce the reader to entire Forth development platform, where first chapter is learning how to program in Forth, then there are informations about the FlashForth and AmForth operating systems. The MCU chapter describes the microcontroller unit, where they are used and its division. Next chapters are about definition of smart sensors and theoretical introduction to distributed systems and distributed computing, which contain also a multitasking solution in Forth. A network is created in Forth that allows remote control using a wireless module.
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Fuzzy Models of Driver Behaviour
Fišer, Michal ; Mihálik, Ondrej (referee) ; Jirgl, Miroslav (advisor)
The master's thesis is concerned with finding a suitable fuzzy model for approximating data series representing driver's control interventions during lane changes. Firstly, the theoretical part presents an introduction to driver modelling and human-machine systems, the basics of fuzzy logic, fuzzy systems and controllers, optimization methods and a vehicle driving simulator. The thesis focuses mainly on McRuer models of human operator behaviour in~the area of driver behaviour modelling and genetic algorithms in~the area of optimisation methods. Based on this theory, individual linear models of driver behaviour are subsequently developed. The data were collected on a vehicle driving simulator. On this simulator, several experiments were conducted to measure the driver's response to a step change. Subsequently, the individual driver models were identified from the measured data using the System Identification Toolbox in Matlab. Furthermore, the design of a suitable fuzzy model structure is described. This is followed by~a~description of the genetic algorithm used to identify the fuzzy model and finally the~linear and fuzzy models are compared.
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