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Bus wiring systems for complex building management
Mokrý, Lukáš ; Macháček, Jan (referee) ; Bátora, Branislav (advisor)
The aim of my thesis is to examine current opportunities of bus wiring systems for complex building management, mainly its power and economic evaluation. It can be simply called intelligent electrical installation. I will examine two systems from INELS and ABB company. These systems contain functional components, mainly modules and controllers. By means of other materials, I’ll create a panel. Components will be placed there and electrically connected. After this, systems will be put into operation and programmed by means of their software. The next step is measuring of quatities during the various conditions of systems and consumption, which is one of the main aims of the thesis. Two apparatuses will be used for measuring. This thesis itself will contain theoretical analysis of systems, their description, using the way of operation and main advantages and disadvantages. Single components and complete process of measuring and working in laboratory will be described. An overall evaluation and comparison of the systems from various points of view, including the price, will be put together from results.
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The Application of Fuzzy Logic for Rating of Suppliers for the Firm
Tomáš, David ; Oliva, Vladimír (referee) ; Dostál, Petr (advisor)
Tato diplomová práce pojednává o řízení dodavatelů firmy. Odlišné softwary jsou použity pro applikace fuzzy logiky. Nejprve jsou představeni dodavatelé firmy pro asijský region. Dále jsou vybrány hlavní parametry které vztahy s dodavateli ovlivňují a jsou použity jako vstupy pro fuzzy model. Fuzzy model poté na základě nastavených pravidel vyhodnotí vstupy a dává hodnotu na výstupu. Výstup je tedy hodnota, která vyjadřuje rating dodavatele a říká, který by měl být preferován.
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Calculation of heat and force field UniGear ZS1
Mokrý, Lukáš ; ABB, Drahomír Tůma, (referee) ; Dohnal, Petr (advisor)
The aim of my work is to describe high-voltage switchgear type UniGear 500R, which is part of UniGear switchgears family. I will focus on heating issue of one 500R unit and its parts during operation. Maximum values of this heating is limited by standards and can´t be exceed to ensure safe and reliable operation. That is why the heating tests are necessary part of designing and developing switchgears. Calculation will be made by two different ways. First is classic one-pole heating net method and second is numerical simulation in Solidworks flow simulation program. Except the theoretical description there will be presented also used 3D model and explanation of both method, used to calculation and simulation. Last point of this work is measuring of this type of switchgear and getting real data. The main point there is to compare measured values with values calculated and decide if is possible to simulate tests with appropriate accuracy. Then would be also possible to substitute the real test in laboratory, which costs many thousand crowns and takes lots hours of time. This work is collaborated with EJF division of ABB Company, where I am employed. Heating issues in this company is always on process, because of developing and improving of their products. So this work could be helpful in this field. ABB provides all materials needed, especially technical catalogues, 3D model and final values from laboratory measuring. Support from college faculty is mainly in study consultations and proposing of calculations making. In the end of work will be make final comparison and evaluation of achieved results.
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Soldering station
Golian, Dominik ; Baštán, Ondřej (referee) ; Macho, Tomáš (advisor)
The goal of this paper is to create a functional soldering station, which would achieve the quality of commercialy available products. The design itself will not be satisfactory without sufficient knowledge of the field. Thus the introductory chapter focuses on a quick overview of matters concerning soldering The attributes are chosen based on market research. The station is equipped with a microcontroller. This allows implementation of usefull functions of several of the compered soldering stations. The practical part contains the electrical solutions and circuit board design. The program taking care of functionality of the entire product is described next. Control structure regulating the irons temperature was selected based on system identification. The result is a product, which satisfies all the requirements.
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The Study Increase Productivity
Marvanová, Barbora ; MBA, Štěpán Kalita, (referee) ; Jurová, Marie (advisor)
The topic of my bachelor thesis is to increase labour productivity with the focus on development of business, particularly in IFE-CR, a.s. Theoretical part describes particular company and deals with all basic concepts, terms and theoretical methods of solving problems associated with labour productivity. Analytical part discusses method of valuation of labour productivity which is done by IFE-CR, a.s. and analysis of labour productivity from different points of view. Final part includes my own concept of possible solutions with the aim of increasing labour productivity in the company.
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New laboratory practices with bus control system Foxtrot
Matouš, Milan ; Kubec, Jindřich (referee) ; Bátora, Branislav (advisor)
The bachelors thesis deals with laboratory exercises based on wiring system created by Foxtrot Company Teco. In the first part, the work briefly introduces the reader with issues of dealing with intelligent systems for houses, properties, topology and last but not least history of such systems. The following chapter involves a characteristic information regarding the abovementioned Foxtrot system – namely composition, function and communication. In order to ensure that the laboratory exercises are feasible a construction of laboratory boards was carried out and. The next sections of the thesis involve process of construction of such laboratory boards, description of all used components and the entire budget. The laboratory exercises are created in the Mosaic software. How to initially set up the software and certain basic information regarding its properties is contained within another chapter. The uppermost parts of the thesis are two laboratory tasks. The first one solves a programming of blinds, heating, cooling and switching of wireless buttons RFox. The other laboratory task aims to create circuits for switching and dimming channels of RGB LED strips which are controlled via the website.
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Transient effect at the output of a continuous-time LTI second order system controlled pulse-width modulation
Petera, Martin ; Richter, Miloslav (referee) ; Jura, Pavel (advisor)
The aim of this thesis is to determine the size of overshoot produced at the output of a linear continuous second order system controlled by pulse width modulation depending on the period and duty cycle of the modulation and system parameters. This thesis contains analytic calculation of the size of overshoot produced at the output of the second order system with damping ratio > 0, except the damping ratio equals to 1 (i.e. both underdamped and damped system) depending on period and duty cycle of the modulation. This thesis also includes a comparison of partial analytic results to numerical simulation in Matlab program and also with measurement at second order system model.
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Control and visualization of sewage treatment plant
Monček, Matej ; Pásek, Jan (referee) ; Štohl, Radek (advisor)
The theme of this bachelor thesis was to introduce with wastewater treatment plant issue and design adequate control system. There is short historical overview in the introduction and acquaintance with reason of creation the specific issue. Which is wastewater treatment plant. In the next parts is description of water treatment, technological analysis acquaint with technological base and used Technologies and preliminary design of graphical and functional parts of control program SIMATIC S7-300.
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Transient effect at the output of a linear dynamic system controlled pulse-width modulation
Petera, Martin ; Richter, Miloslav (referee) ; Jura, Pavel (advisor)
The goal of this work is to determine the size of overshoot produced at the output of a linear continuous second order system controlled by pulse width modulation. This work contains the calculation of the output signal response of the system in the time domain using the Laplace transform. The calculations of the amplitude of the output signal based on the pulse width modulation and system parameters are performed in this work. Finally the possibilities was given to determine the suitable period of pulse width modulation for required ripple. All the important calculations were compared with the simulations in the MATLAB-SIMULINK program and with the measurement at the real inertia second order cell.
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Analog I/O card with Ethernet
Pelikán, Radek ; Šedivá, Soňa (referee) ; Bradáč, Zdeněk (advisor)
The aim of my master‘s thesis was design of analog measuring card with generator and Ethernet interface, based on RCM3200 Rabbit Core module. I described this module, introduced the conception and the design of the measuring card. In appendix I stated design of schematic, design of board. I tested functionality of the measuring card.
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