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Fundamental Anylysis of Selected Stocks
Dvořáček, Martin ; Henešová, Šárka (referee) ; Sojka, Zdeněk (advisor)
This thesis deals with the fundamental analysis of stocks selected Telefónica Czech Republic a.s. This paper contains a theoretical description of the use of fundamental analysis including a description of the specific models use dinfundamental analysis as a tool for determining the intrinsic value of traded shares. In the practical part I apply this analysis to the selected share with the help of publicly available information.
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Investments of the Automotive Industry in Precious Metals as Strategic Materials
Dvořáček, Martin ; Plíhal, Tomáš (referee) ; Rejnuš, Oldřich (advisor)
The subject of the thesis is the investment recommendations of companies operating in the automotive industry to purchase strategic raw materials, such as in particular platinum, palladium and rhodium. Thesis include a theoretical description of the topic, respectively certain forms of hedging, instruments used to hedge and brief characteristics of precious metals. Analytical and proposed section of the thesis contains specific methods, procedures and its own approach used to meet the global target of thesis.
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Control of 3-axis PCB drill
Kresta, Martin ; Dvořáček, Martin (referee) ; Macho, Tomáš (advisor)
This thesis is focused on design and realization of 3-axis PCB drilling machine. Design comes from mechanical construction of inkjet printer and reusing most of original actuators. This thesis is mainly focused on design of control electronic circuits and software equipment. The whole machine is controlled by 8bit AVR microcontroller ATmega64. Machine is also equipped with USB interface for communication with PC application. This feature allows automatic processing of CAM files from PCB design systems.
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Control and visualization of techlologic process via IPC
Buchta, Luděk ; Libor, Matys (referee) ; Dvořáček, Martin (advisor)
The aim of this bachelor’s thesis was to acquaint with techniques and technologies used in the control and visualization of technologic processes. The industrial PC, PLC and Automation Panels from the company B&R was used on control of the technologic process in laboratory E541. Designed and implemented control algorithm contains three discrete controllers. The standard OPC is used for communication. Visualization for control workplace is created in the Program Control Web. Visualizations for operator workstations are created in the program Automation Studio. These visualizations are used to transfer information from the technological process.
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MATLAB/Simulink, Real-Time simulation and control
Malík, Dalibor ; Chomát, Luděk (referee) ; Dvořáček, Martin (advisor)
This bachelor thesis provides information about a possibility of implementing the real-time, a serial line RS-232 and communication with a programmable controller (PLC) by Bernecker &Rainer (B & R) in MATLAB / Simulink evironment. Further, it provides information about options of creating a block in MATLAB / Simulink, modes of operation of the simulink and implementation of blocks to the blockset. In the proper communication with PLC the principle of PVI is described, the terminology connected with PVI is explained and setting and maintaining the communication between a source station and PLC is specified.
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Model of DC motor
Turanský, Luboš ; Dvořáček, Martin (referee) ; Chomát, Luděk (advisor)
In this work is described essential division of electric motors and possibilities of their regulation. In detail is shown how was obtained mathematical model of DC motor and its implementation to Matlab/Simulink. Subsequently is described how was created hardware and firmware of model which is simulating behavior of described DC motor. Final model is connected with PLC. For PLC is created visualization which allows monitoring of regulation process and changing PSD regulator parameters. Last part of the work is model manual and task laboratory exercise for the model.
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Model of electric furnance for heat-resistant material processing
Franek, Lešek ; Malounek, Petr (referee) ; Dvořáček, Martin (advisor)
Content of the document is to create model of kiln, compare result with the real kiln. There is described 3D design in SolidWorks application, creation of a physical model in COMSOL Multiphysics and its export to Simulink. Subsequently is described the Simulink scheme, functions of program parts and visualization in B&R Automation Studio. The obtained results are compared with measured values. There is also described the design of a controller with a off-line identification.
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Comparative study of discrete PSD controllers
Pelikán, Leoš ; Dvořáček, Martin (referee) ; Pivoňka, Petr (advisor)
This bachelor thesis deals with verification of heterogeneous structures of discrete PSD controllers on different process structures. Description of controlling system and various structures of PSD regulators is in theoretic part. The practical part of thesis describes progress testing, particular results and compare with adaptive an adaptive controller of B&R company.
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Comparative study of discrete PSD controllers
Vaňková, Tereza ; Dvořáček, Martin (referee) ; Pivoňka, Petr (advisor)
Bachelor’s thesis is focused on a verification of heterogeneous structures of discrete PSD controller depending on different process structures. The first theoretic part describes a continuous action controller, a transformation from the continuous to the discrete control and a discrete control loop (with issues like a sampling, a quantization, a signal shaping). Further there are described the concrete structures of the discrete PSD controllers – from the classical PSD controller over the variations with filtration in a derivative part to the structures with an elimination of the oscillation and the first overshoot. There are also mentioned two methods of controller parameters´ setting– second Z-N method (based on finding out critical parameters of the system) and a balanced setting of controllers. Second, practical, part of thesis contains particular results, which were found out by measuring on the simulation and real models. Finally achieved results are compared with an adaptive controller of B&R company.
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Comparative study of PID and PSD Controllers
Staněk, Viktor ; Dvořáček, Martin (referee) ; Pivoňka, Petr (advisor)
Description of PID and PSD controllers structures. Verification of function of heterogeneous structures of PSD controllers on typicall transfer functions. Respones to changes of input value. Effect of change of sampling period on PSD cotrollers. Verification of influence of derivative part of PS-D and S-PD controllers.
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