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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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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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S-BUS I/O modul as a periphery for PLC Saia
Vaško, Jiří ; Kaczmarczyk, Václav (referee) ; Pásek, Jan (advisor)
The subject of my bachelor’s thesis is a design of I/O module with digital inputs and digital relay outputs. This module is supposed to communicate with SAIA PCD controllers via SAIA S-Bus protocol. The primary purpose of the module is using as a component of intelligent building control system. The former part of the thesis contains S-Bus characteristics. The next passages are focused on a schematic design and a description of the implemented code in the microcontroller.
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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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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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Transient Effect at the Output of a Linear Dynamic System Controlled Pulse-Width Modulation
Petera, M.
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 were 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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Data envelopment analysis and their application in chosen branch
BANDÍK, Tomáš
Data envelopment analysis is one of methods how to compare the efficiency of transformation of the inputs to the outputs among production units. It helps to improve the efficiency and to identify weak points in production systems. The target of DEA is to divide focused subjects to efficiency and non-efficiency groups, comparing the amount of used sources as inputs and the amount of outputs. At first there are described some important conceptions in theory part. Then explanation of principes DEA follow and basic models analysis description too. The desription supposes constant returns to scale and variable returns to scale. There is contain a chapter devoting to description of using software. The practical part of my bachelor thesis is focused on using DEA to compare different countries by HDI ( human developmet index) The solution of this case work with characteristics used by calculating HDI.
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Zadejte název práce
Selep, Ján ; Bartoň, Petr (advisor) ; Bolcha, Peter (referee)
Creative Commons (CC) organization released in 2003 six licenses, which take part of the copyright protection and let other parts fall in the public domain. Consequently, they lower the price of works for future works (inputs) and as an outcome increase creativity and number of works created. On the other hand, CC licenses can serve also as a substitutes to the pure copyright. This thesis examine the impact by analysing United States copyright registration and CC linkback data. The results show insignificance of CC licenses impact on pure copyright licenses. Based on the results I found weak evidence for complementary relationship between the two. Finally, I show that there is no difference between the types of CC licenses as an determinants of number of pure copyright licenses.
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Types of Registration to the Real Estate Cadastre
PANGRATZOVÁ, Jitka
In this diploma thesis I have characterized the Registration into Real Estate Cadastre, which government agents has a competence about Real Estate Cadastre and own proceeding of registration. Shortly I have characterized register of real estate in Germany, as another member state of European Union.
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