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Digitally controlled filter
Rez, Jan ; Szabó, Zoltán (referee) ; Friedl, Martin (advisor)
This bachelor's thesis deals with design of a functional prototype universal digitally controlled analog frequency filter 2th order. Part of the design is the selection of appropriate filter topology diagram and selection of an integrated circuit. Universal filter will contain lowpass, highpass, bandpass and notch filter. The filter is tuned in cutoff frequency from 100 Hz to 15 kHz. The bachelor's thesis focuses on the circuit analysis of selected concrete structure of universal filter and possibilities of digital control filters. The practical part of this thesis includes PCB design, control software for filter and graphical representation of measured results.
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Alphanumerical external wireless display device for PC
Veverka, Vítězslav ; Prokopec, Jan (referee) ; Beneš, Jan (advisor)
In this work was created the basic description and theoretical design of alphanumeric extern wireless module which could be connected to PC by the USB. This work includes the basic description of some alphanumerical visual modules connectable to PC, the charecterization of general used electrical networks and components, the basic parameters of high frequency modules and wireless transmision. On the basis of theoretical studies are described the oppotrunities of the project of complete alfanumerical extern wireless display and reasons of selected options. Next the creation of circuit diagrams and printed circuit boards. The result of this work is a functional prototype of the equipment including software for microprocessors and computer control. Verification of functionality and usability is part of the project.
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Car power supply for notebooks
Cupák, Pavel ; Šotner, Roman (referee) ; Kubíček, Michal (advisor)
In these days, almost everybody has a laptop. It allows a simple moving of a work space and with a battery capacity of several hours the owner can work almost everywhere. However, the battery has to be recharged from time to time and a socket is not available everywhere. Often you need to recharge when travelling by car and it comes to mind to use the car socket. The bachelor thesis deals with design and implementation of switching power supply for recharging laptops from car socket. The power supply has an easily adjustable output voltage for a simple choice of the right power voltage of a laptop, which is visualized on the display. The power supply is driven by microcontroler ATmega8.
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Industrial state indicator
Růžička, Zdenek ; Štohl, Radek (referee) ; Bradáč, Zdeněk (advisor)
Diploma work deals with industrial display systems, indicators and their proposal. These systems are used everywhere that is necessary to mediate transmission of information. Own proposal of indicator is very specific and depends on given application and used display. In practice there is possible to use a few types of displays but in this diploma work there are used only sedmisegmental and matrix. Common component of proposal is microcontroller. No less significat and important part of the proposal is a choice of interface and communication protocol. The correct choice of hardware that is completed with software we will obtain complete status indicator.
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Multimedia player of non-compressed audio data and images
Sekanina, Viktor ; Šebesta, Jiří (referee) ; Frýza, Tomáš (advisor)
The work deals with hardware and software design of standalone audio player for uncompressed format. Designing device will ensure the connection and operation of the hard drive, browse the directory and files, display bitmap images and play audio records. Next parts of player are also a graphic equalizer and audio power amplifiers for speakers or headphones. A certain complexity of the system is given a relatively high bitrate of uncompressed audio and the need to continuously control of the periphery.
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Car4 vehicle remote control enhancement
Nejedlík, Tomáš ; Lamberský, Vojtěch (referee) ; Vejlupek, Josef (advisor)
This work deals with adding the LCD display to the remote control and its programming. At the introduction, we describe available data that we could get from the on-board sensors. Then we describe in detail how are the data transmitted between vehicle and its remote control, how the data are processed and then displayed. Also the modifications performed on the on-board electronic wiring and battery charging are discussed and described.
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Design of Electric Hand Drill
Burjeta, Josef ; Haltof, Vladimír (referee) ; Zvonek, Miroslav (advisor)
The aim of this bachelor thesis is to design an electric hand drill, respecting the functional, structural, technological and ergonomics requirements with emphasis on the aesthetic value of the proposal. My goal is to improve ergonomics of the device and to facilitate its usage. I would also like to enhance its function using modern technologies and brighten up existing market.
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Solar water heating controller
Kadlíček, Matej ; Levek, Vladimír (referee) ; Šteffan, Pavel (advisor)
This bachelor project deals with the creation of an effective system of regulation solar heating for swimming pool. creation of communication between the system and the server for transmission and processing measured data. The work includes software description of the system and hardware description of the created printed circuit boards. It is needed to think about the way of measurements, switching the load or display visualization. Due to better power consuption is also discussed the optimalization of the project.
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Strength meter
Švancara, Michal ; Kopečný, Lukáš (referee) ; Florián, Tomáš (advisor)
The aim of this project is to improve last version of strength meter, which was designed for presentation purposes. This project describes theory and principles of used elements and contains analysis of function problems and practically solves them. The practical part also describes, how to extend strength meter with external display unit and how to control it. The final part of this project contains design solution of the device.
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