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Positioner for Solar Panel with Power Efficiency Optimizing
Kreysa, Karel ; Punčochář, Josef (referee) ; Šebesta, Jiří (advisor)
This thesis is focused on design and prototyping of solar panel position control system for an obtaining of the maxima renewable energy from sun. In this thesis, various ways of solar panel positioning are considered and analyzed. Consequently, a construction arrangement of the positioner is presented. It is mechanically adapted to obtain the maximum efficiency in typical environment corresponding with the Central European geographical latitude. Different methods of sun monitoring are considered and analyzed. On the basis of this analysis, a proper prototype of sun monitor for exact positioning with disturbance filtering has been constructed. Following part of work is devoted to stable, fully automated, control subsystem for reliable functionality of solar system. A suitable microprocessor with a robust firmware has been implemented to this control unit. Finally, system parameters measurement and closing analysis of gained renewable energy and backflow computation is presented in the end of this diploma thesis.
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Image processing algorithms in eight-bit microcontroller
Rébl, Miroslav ; Fajmon, Petr (referee) ; Fedra, Zbyněk (advisor)
The aim of master thesis was to investigate a simple camera and processor Atmel AVR unit implementation. Thesis describes how to get image from C3088 module and management over the bank of camera registers. Work includes limitation draft for this way of processing the information. Thesis also solves an exemplary model for object recognition using this implementation.
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Voltage source controlled by MCU
Požár, Marek ; Vorel, Pavel (referee) ; Friedl, Martin (advisor)
Laboratory source is basic and necessary part of almost every modern electronics laboratories. Development cannot be done without good laboratory resources. It is main function is supply stabilized DC voltage and current. It appears in a simpler version without the continuous regulation of voltage and current, with only predetermined switching voltage. Of course there are also more demanding applications, where stable voltage adjustable fluently and where is continuous of stable voltage for example LCD applications. This term project deals with a connection of microprocessor and stabilizing and regulating circuits for voltage and current of laboratory sources output. That microprocessor controls performance features by DA converter, which provide a stable output voltage which required power.
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Universal Microcontroller Unit
Kulenda, Vít ; Hynčica, Ondřej (referee) ; Kučera, Pavel (advisor)
Master’s thesis contains description parameters of microcontroller ATMEGA644P, also contains differences between older and newer version of microcontrollers ATMEGA644 and ATMEGA644PA. Inside structure of microcontroller, memories and peripherals are described here. The construction of the universal microcontroller unit is main target of this thesis. The unit contains supply, A/D converter, current loop, communication interfaces, temperature sensor, accelerometer and other. The unit collects and saves data, communicates by interfaces and manages other functions. Using devices and circuits are described in this thesis. Development of software for microcontroller(firmware) are positioned to last part of this thesis. This software control functions of all parts positioned on the unit.
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Measuring device connected over USB
Flek, Tomáš ; Strašil, Ivo (referee) ; Krajsa, Ondřej (advisor)
In essence, this master’s thesis focuses on search and project on optimal electrical scheme, which will substitute for digital oscilloscope function. The thesis consist of three parts, first part is about problems associated with oscilloscope signal sampling and data bus descriptions, second part where are selected particular circuits, electrical scheme, eventually shown different options which could be used. Third part consists of software function description developed for controlling microprocessor. In choosing of analog devices, are focused on parameters like maximal input voltage on which the device has most ideal parameters, but also parameters, which are critical for particular block, like for example input impedance, device noise, operating amplifier input voltage and current offset. All devices were chosen with battery supply possibility, so what the lowest possible power consumption. In this thesis is theoretically described each circuit block and reasons for their selection.
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Control System for Small Mobile Robot
Sárközy, Imrich ; Macho, Tomáš (referee) ; Žalud, Luděk (advisor)
The aim of this work was to design a control system based on the XMega microcontroller, for a small mobile robot with an tracked undercarriage. At first, my work was to develop an electrical scheme and circuit boards for the control system. The next step was to connect sensors for non electric quantity and modify the control algorithms for a simple navigation. In the last phase I tuned the user interface and the whole control system for minimal data flow between the mobile platform and the user interface.
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Universal hardware platform supported Linux operation system
Skopal, Miroslav ; Matěj, Zdeněk (referee) ; Fedra, Zbyněk (advisor)
This thesis deals with the development problems and creating of the multi- purpose hardware platform, which supports operating system Linux. It is focused on the microprocessors using ARM architecture with architecture ARM7, ARM9 and ARM11. The scope of the first part of this thesis was searching the sales of available 32 bit ARM microprocessors. The second part is attended to a particular Mini2440 development kit, its animation and the subsequent development of the kernel drivers for OS Linux platform. One of this thesis details was also the development of my own expansive hardware module and a capacity keypad for a usage with Mini2440 developmental kit.
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Microprocessor controlled testing unit
Mejzlík, Vladimír ; Tošovský, Petr (referee) ; Kolouch, Jaromír (advisor)
This project deals with the design of an autonomous microprocessor controlled testing unit for automatic controlling the output of the tested device, depending on the excitation of its inputs. There are possible realizations of testing unit hardware functional blocks described. Possible options are objectively analyzed in accord with the project specification and with regard to the mutual compatibility of individual blocks, availability, price and desired functionality. The most appropriate selected solution is implemented using the specific circuit elements. The output of the project is realized functional testing unit and elaborated product documentation. There was control software for the microprocessor of the unit written. The software implements an interpreter for the test algorithm execution, carries out the test evaluation and stores a record of the test process to the file. There was also the utility for a PC, which allows uploading tests to the testing unit via USB created.
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Communication module for power supplies controlling
Zachar, Jiří ; Šmíd, Petr (referee) ; Dřínovský, Jiří (advisor)
The aim of this work is to design a communication module for laboratory source Manson. This power supply communicates only through a serial RS-232 link. Modern computers usually use for the connection with other peripherals mainly USB. Designed communication module contains converter between the RS-232 and USB. Power supply is used in the automated measurement setup, which is controlled from the Virtual Engineering Environment from the Agilent Technologies. Direct commands for laboratory source Manson are not compatible with the SCPI (Standard Commands for Programmable Instruments) standard commands. So, the communication module converts commands from the SCPI format to Manson supply instructions. The communication with the Manson supply will be obvious for students by using new communication module.
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Contactless measuring ventilator-revolution counter
Pokorný, Aleš ; Trmač, Jiří (referee) ; Michálek, Václav (advisor)
This project is about design of contactless measuring ventilator - revolution counter. The counter serves to measurement of the speed of ventilator. The measurement is based on optical method of receiving the reflected laser beam. To measure and calculate use the revolution counter the microcontroller. This measured value is diplayed on LCD. After design follows experimental measurement.
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