|
|
The system for administration keys trough the using RFID
Veselý, Aleš ; Šteffan, Pavel (referee) ; Pavelka, Ondřej (advisor)
This thesis dealing with description and system design for administration keys trough the using RFID technology. The main task of this thesis is create a complete controlling algorithms for this system include operating program for platform Windows. Practically output of this thesis is system controlled by microcontroller, which make a decision based on authorisation whether man in question have an accession to the system and which keys he can take.
|
|
|
Laboratory Tasks for Analogue Technology
Pavelka, Ondřej ; Haupt, Jaromír (referee) ; Langerová, Petra (advisor)
Předmět Analogová technika se zabývá základními analogovými funkčními bloky a jejich využití v současných elektronických zařízeních. Skládá se z přednášek a laboratorních cvičení, kde si studenti mohou ověřit nabyté znalosti v praxi. Tato práce obsahuje detailní návody s postupem řešení všech laboratorních úloh, měřených během celého semestru v laboratorních cvičeních. Tato cvičení slouží jako pomůcka pro lepší pochopení problematiky předmětu Analogová technika. Návody se skládají z teorie týkající se probíraného tématu, požadovanými úkoly, které má student splnit, schémat zapojení a pokud to daná úloha vyžaduje, tak i potřebných matematických vzorců k výpočtu požadovaných hodnot. Pro lepší názornost a k ověření správnosti postupů práce se v obvodech využije osciloskop. Návody také obsahují tabulky k vytištění a zapsání vypočítaných hodnot, které jsou výstupem některých úloh. Hlavním cílem této práce je zvýšit úroveň znalostí studentů předmětu Analogová technika a zvýšit efektivitu práce v laboratořích.
|
|
|
Numerical analysis of stiff differential equations
Pavelka, Ondřej ; Zatočilová, Jitka (referee) ; Tomášek, Petr (advisor)
This bachelor's thesis deals with numerical solution of ordinary differential equations. The first part of the thesis introduces and describes the numerical methods for ordinary differential equations. The next part is about stability of numerical methods. The aim of the thesis is to analyze the stiffness of the systems of differential equations, select a suitable numerical method and solve the systems in the MATLAB.
|
|
|
Switched power source 300 V/100 V
Horníček, Evžen ; Lutera, Ondřej (referee) ; Pavelka, Ondřej (advisor)
This thesis deals with design of switching power supply used for supplying of electronical measurement instruments. The project consists of choosing of suitable type of the converter, system design of the converter, design of the pulse transformer and the output coil. For final control of design was designed the convertor with universal control circuit and there were measured its basic parameters. Then, the universal control circuit was replaced by microcontroller.
|
|
|
Learn Application for Internet Environment
Polášek, Jan ; Pavelka, Ondřej (referee) ; Drahanský, Martin (advisor)
The goal of this thesis is to give an overview of current state on the market of online learning systems and design a system for online language learning. In the next step designed system will be implemented using current open source technologies. A direction for the next development will be set, based on the results of testing by users.
|
|
|
Universal CNC machine extensions for additional functions
Pavelka, Ondřej ; Mačák, Martin (referee) ; Jaššo, Kamil (advisor)
Technology of 3D printers, which are regarded as a representative of a CNC machines, are the central point of this diploma thesis. Apart from the history and theory of 3D printers with the emphasis at their functioning principles, firmware, different methods of 3D printing and their respective kinematics, there are chapters concerned with typical CNC machines as well. There is insight into programming of CNC machines and different types of CNC machines regarding their utilization in many industries. The practical part of this diploma thesis is covering conversion of the real VUT FDM 3D printer to a universal modular machine. This conversion was preceded by identification and elimination of a faults, which this 3D printer had and therefore haven’t been capable of becoming functional modular machine. With the aim of increasing the actual value and its utilization there were two switching modules created. One for 3D printing and second for extruding paste like materials.
|
|
|
Controllable source supplied and controlled via USB
Sedláček, Michal ; Číž, Radim (referee) ; Pavelka, Ondřej (advisor)
Master thesis deals with design controllable switching power source. Device is supplied and controlled via USB bus of PC. The required output parameters are specified by user in a computer application. The teoretical part includes method of USB communication and introduction to switching power sources with focus on a Sepic topologii. The practical part describe individual circuit solution which contains of a complete device. Is analyzed in detail the proposal Sepic converter circuit and controling by microcontroller. The work also includes the design of microcontroller and computer applications. The result of this thesis is a functional device on which is the performed measurement.
|
|
|
Portable universal timing facility for sports activities
Jacko, Róbert ; Strašil, Ivo (referee) ; Pavelka, Ondřej (advisor)
Semestral thesis entitled „Universal timekeeping system for sport“ deals with issue of time measurement at sporting events. At this thesis is included basic overview of timekeeping solutions, practically set requirements for timekeeping, comparison of few commercially available time measurement systems and proposal itself. The proposal is divided into few parts. Designed solution is shown by block schemes and functionality of each used block is explained at own part. At first is shown how entire system works then each part of measuring system is explained closely. Based on proposal was constructed prototype of system. Prototype consists of nessesary parts. This thesis deals with design of all parts and describes its functionality.
|
|
|
Web Application for e-Learning
Harajka, Viliam ; Pavelka, Ondřej (referee) ; Drahanský, Martin (advisor)
This bachelor´s thesis is elaborated according to the assignment of Honeywell company, which decided to broaden learning possibilities of foreign languages in their company by e-learning. Employees will have an opportunity to use e-learning system, which will help them to enhance their knowledge beside attending classical lessons. E-learning includes various kinds of exercises and homeworks as well, which are sent to particular lector for checking. E-learning is a web application placed on the Internet and is accessible anywhere, where Internet connection is available. It includes administration interface for lectors and employees, which is only accessible by login and password. The system was created by HTML, PHP, CSS, JavaScript and MySQL technology and certainty nowadays is technology Ajax as well.
|
|
|
Digital AM / FM transmitter
Kováč, Marek ; Strašil, Ivo (referee) ; Pavelka, Ondřej (advisor)
This master thesis is focused on the theoretical description and practical implementation of software defined transmitter. The main aim of this thesis was made the prototype of software defined transmitter in FM band. Theoretical part is determined to description of basic parts of equipment and working principles to understand the basic principle of digital transmitters and define the appropriate component base for construction. Discussed are used types of A/D and D/A converters, blocks of digital signal processing and the roles, which these components performs. The second part is focused practical. Specified are suitable types of components and block diagram is proposed for following electrical connection and printed circuit board in Eagle program as a plug-in modul for developmental platform Arduino. The main point is program, which sets and controls the transmitter. Next important part is impedance match and antenna tuning, which is explain in practical part of thesis. The result is prototype of software defined transmitter compatible with Arduino Uno platform.
|
guest ::
RSS feed.