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Synchronization of Generator by Applied Synchro-check Relay in Feeder Terminal
Gregr, Tomáš ; Novotný, Jan (referee) ; Orságová, Jaroslava (advisor)
The aim of this work is a theoretical analysis of the parallel operation problems of electrical networks, as well as of the connecting the synchronous alternators to the electric power system. The knowledge of the present methods of connecting the synchronous alternators to the common network, of the historical evolution of this set of problems, of the phase conditions, their permitted deviations, as well as of the actual use of the modern phase automatic equipment, thereafter we to concentrate exclusively on the function of the synchro-check feeder terminal REF 543 produced by the ABB company. A part of this work is the analysis of the transient phenomena, that of accurate phasing, as well as that of phasing during a voltage, frequency and phase shift. Thereafter our goal is to get acquainted with the configuration program CAP 505, to carry out the communication of the REF 543 with PC, creating a new project, its configurating and then transmitting it to the REF 543 terminal. Further we occupy ourselves with the project to adjust the synchronous function synchro-check to phasing. The main task of this work is the proposal and the following testing of the connexion with the aim to test the synchronous function of the REF 543 terminal in cooperation with the output circuit breaker simulated on the test panel from the ABB company. Using the 6-phase generator from the UNIMA-KS company, this will simulate the voltage of the alternator. The network voltage is induced by means of the three-phase autotransformer from the Křižík n.p. company. We end this work up with a detailed description of connecting the terminal to the computer, with its following configuration, with setting up the required values, as well as with connecting the apparatus on order to test the conditions for the correct connection of the whole device.
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Synchronization of DNS Records between LDAP Database and DNS Server
Bašti, Martin ; Matoušek, Petr (referee) ; Čejka, Rudolf (advisor)
Cílem této práce je prozkoumat možnosti uložení DNS dat v LDAP databázi a jejich oboustranné synchronizace s DNS serverem s využitím standardních technologií, paralelizace a jednoduché rozšiřitelnosti o podporu různých DNS a LDAP serverů s různými DNS schématy. Práce dále popisuje různa schémata pro uložení dat v LDAP databázi a analyzuje problémy spojené se synchronizací a navrhuje jejich řešení. Výsledkem je prototyp synchronizační aplikace s doporučenými nastaveními pro DNS server a LDAP databázi, která je schopna efektivně synchronizovat DNS data.
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Interactive Web Editor of Slides and Video Synchronization
Řídký, Josef ; Beran, Vítězslav (referee) ; Szőke, Igor (advisor)
The aim of this work is to create interactive web application which can be used to synchronize slides used during the presentation with video recording from the presentation itself. This document contains a description of the problem, analysis of implementation tools which are necessary for application development, implementation description, a list of functional skills of application, user interface description, the method and the results of testing and comparing the resulting application with the previously used tool for synchronization created by Bc. Zdeněk Coufal.
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VGA image generation with microcontroller
Polášek, Jan ; Šebesta, Jiří (referee) ; Fedra, Zbyněk (advisor)
This bachelor’s thesis is concerned with generating image in VGA format using microcontroller. It’s aimed at microcontrollers series AVR from producer Atmel. Project contains VGA interface description, solves its connection to microcontroller’s output ports, further it contains connection diagram of image generation device with microcontroller Atmel ATmega324P, that I constructed during work on this project.. In project are analyzed fundamentals of image generating in microcontroller, synchronization of image using microcontroller’s internal counter, creating of simple graphic images and text and principles of generating colour images. Generation of text is analyzed in details, including source code for microcontroller. The result of this bachelor‘s thesis is functional image generator device.
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Application for Controlled Access to Remote Documents for GNU/Linux
Bernard, Jan ; Burget, Radek (referee) ; Rychlý, Marek (advisor)
The aim of this thesis is synchronization and life cycle of files downloaded to user's computer from validated data storage. Based on market analysis there is large selection of applications in market but there are relatively large differences along them. Application was designed and implemented for GNU/Linux according to requirements and given validated data storage communication. The application was tested on two selected Linux distributions with Mock Server represententing remote storage.
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The system for multimedia data managing and their distribution
Paulech, Michal ; Krajsa, Ondřej (referee) ; Koutný, Martin (advisor)
This thesis is about description and design of system for media files management and their distribution. System allows users to upload media files in different formats. Media files are distributed to devices on which they are played. The system creates an overview of the playback based on records that the device sent to the system. The thesis describes the technology used to create the system. Furthermore, the work is a description of the structure of the system, its functions and a description of system implementation.
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A tool for simultaneous playback of multiple composition interpretations
Švejcar, Michael ; Ištvánek, Matěj (referee) ; Miklánek, Štěpán (advisor)
The purpose of this Bachelor’s thesis was to create a piece of software which enables the user to simultaneously play back multiple interpretations of a musical piece and switch between them instantaneously. This was achieved using the App Designer in the MATLAB environment, which is intended for developing applications with graphical user interface. The key to the development of the application was especially the use of available toolboxes and algorithms for computing chromagrams and multiscale dynamic time warping. The final IntSwitcher player enables the user to load two recordings of interpretations of one song. Chromagrams which characterize the individual recordings in terms of tonal development over time are first calculated from the input files. After that, the multiscale dynamic time warping method is applied on the chromagrams, which outputs the warping path. The warping path in this case is a matrix, in which musically corresponding samples of loaded audio files are assigned together with the resolution of 50 ms. From this, the corresponding time position of currently inactive track is computed along with its slider position. If the user switches the currently played recording, the second track starts playing in the same part of composition, even if that part is at a different time in each of the individual recordings. The final software is an appropriate tool for studying differences between various interpretations of the same musical piece.
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Modernization of the master clock for slave clocks controlling
Pokorný, Jiří ; Číž, Radim (referee) ; Krajsa, Ondřej (advisor)
This diploma thesis describes modernization of the master clock HN 50 created by company ELEKON, s.r.o. Master clock can be used for controlling of analog or digital slave clock or for switching school bells. Exact differences between old and new version of the clock are described and ways of synchronization and controlling of slave clock are explained. Main goal of modernization is applying the SMT technology for automation of production. Another problems and shortcomings of previous version are developed, such as new power supply structure, selection of a new microcontroller and usage of several different displays. Every problem is developed and new solutions are chosen. Last part of the document describes the software which is clarified on several flowcharts. Outputs of the thesis are complete schematics, printed circuit boards and 3D models of the modernized device.
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Shared Bookmarks in KDE
Korčák, Ján ; Částek, Petr (referee) ; Burget, Radek (advisor)
The work deals with a problem of storing and sharing internet bookmarks what means the possibility to access them from any place. it is not concerning only the modern graphic user interface KDE, which is frequently used in the UNIX type operating systems but the solutions for it are not that universal. The application which I am analyzing in the text is working independently on the installed graphical user interface and it does not require installing many libraries. All the work is maintained by the program itself. The work is also studying various problems involved with the process of creation and development of such a system.
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