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Universal switch for security systems
T.Kovács, Matúš ; Fedra, Zbyněk (referee) ; Frýza, Tomáš (advisor)
The aim of this work is to discuss the topic of a secure technology device using an electronic securing system and a camera system. The device is using four cameras, from which each is connected to a motion detector. The device is designed so it allows the recognition of a possible failure to the analyzer, damage or arcing fault of the guidance, the switch of the video signal within the vertical blanking interval, or a malfunction of the SMS sending from a GSM modem. Important parts of the device are the VIDEO MUX, which provides the signal from the camera to the screen, and the PIR HANDLER which detects the states of the PIR detector. The work of these peripheries is monitored by the ATmega128 microcontroller.
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Dynamic reconfiguration with Atmel FPSLIC
Jančík, Martin ; Hanák, Pavel (referee) ; Fedra, Zbyněk (advisor)
This study describes the platform Atmel FPSLIC, which is created by means of the logic arrays FPGA and the micro-sequencer controller AVR. The developmental kit STK594 is described here as well, with its programming possibilities, as for the logic arrays FPGA, as for the micro-sequencers AVR. Also the separate circuit AT94K is described there. This circuit can be programmed by the language VHDL (the field FPGA), or by means of the assembler and language C for the micro-sequencer. All this can be integrated into the one output file by means of program System Designer, comprising a set of software tools for given programming languages and for generation of the whole circuit. Furthermore, the study describes a simple application for the both platform parts. Also the description of the dynamic reconfiguration of the circuit gate part is included.
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Communication & Man-Machine Interface for industrial sensors
Marcoň, Petr ; Fedra, Zbyněk (referee) ; Frýza, Tomáš (advisor)
This thesis describes the possibilities of local and remote sensors configuration. Summary overview of the most common Fieldbus and protocols for remote configuration is performed. The focus is mainly dedicated to the HART protocol that is analyzed from the physical layer to the application layer. Circuit diagram and printed circuit board (PCB) of smart sensor with thermistor probe Pt1000 was designed. The HART protocol allows the smart sensor parameters setting as well. The functionality of remote configuration was tested in HARTWinConf program. The control elements for local sensor configuration, such as buttons, matrix keyboards and touchscreens, are described in the following chapter. Representation of the measurement values on display module is introduced too. The most important parameters and aspect of character LCD, graphics LCD and OLED displays are described in greater details. The DD12864YO-3A OLED display was selected to use with designed temperature smart sensor module. The display shows the loop current, the percentage of current range and the primary value - temperature. As the last step the EMI and EMS tests for all modules were performed.
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GSM alarm for motorcycles
Beníček, Martin ; Fedra, Zbyněk (referee) ; Urban, Josef (advisor)
The main target of this work is to design and to implement unfailable safety appliance for motocycles with use any GSM technology. In my masters’s thesis I applied to individaul fields which I had to knows for realization of this work. The introductory chapter tells the reader about evaluation of former semestral projects and about brief description of the realized mechanism. It is followed by descripctoin of principles of communication between PC and mobile phone. The main part of my work is dedicated to application itself. The applicaton is called motoalarm. The last chapter creates description service of localisation mobil phones which is called Kde je... The conclusion includes evaluation of this master´s project and general description of the realized mechanism.
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Flight statements electronic sensor.
Harant, Josef ; Fedra, Zbyněk (referee) ; Šebesta, Jiří (advisor)
This diploma thesis deals with theoretical analysis, design and practical solution of flight statements electronic sensor. This device is primarily intended for measuring telemetry data during aerobatic flights. Theoretical part contains fundamentals of GPS and inertial navigation systems. Design of the device is divided into three parts - design of block structure, construction and software for the measuring device. The final realization is made with respect to minimal system requirements and to possible future extensibility for wider usage spectrum.
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OFDM implementation in FPGA
Horák, Martin ; Fedra, Zbyněk (referee) ; Maršálek, Roman (advisor)
The thesis is focused on designing OFDM modem, which should be implemented into the FPGA device. The advantages of using OFDM signals in order to provide high baud rates together with high multipath immunity has provoked a mass expansion into media systems such as DSL, DVB, Wi-Fi, WLAN, etc. . Thanks to this technology we can quarantee high modulation rates with minimal negative disturbance eects. The rst part is dedicated to characterise OFDM signals, their generation and the algorithm producing the OFDM which is implemented in DSP devices. For the purpose of using the fastest algorithm, the Fast Fourier Transform using Cooley-Tukey algorithm was shown. Before we can implement OFDM modem into the FPGA device, we have to simulate its correct function. Because there is no OFDM analyser available at our departement, its necessary to prove its correct function by simulations. Therefore a large part of this thesis is focused on simulations using Matlab and ModelSim, in order to show comparison between the theoretical, and simulated results. Between the theoretical and practical simulations there is a part which shows the brief characteristics of available FPGA devices. Detailed view is presented just for the Virtex II device, which the implementation is made for. As a suitable FPGA device, we have chosen Virtex II XC2V1000 which is available for students. In the last part the measured results were shown to prove the corect function of the modem. Programming the FPGA using VHDL language is realized in the software ISE Xilinx (distributed in Xilinx software support). All programmed scrits and data used in this thesis are included on distributed media.
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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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Library for graphic objects for microcontrollers Atmel AVR and graphic displays
Skopal, Miroslav ; Frýza, Tomáš (referee) ; Fedra, Zbyněk (advisor)
This bachelor’s thesis is concerned about the graphic LCD display control by the Atmel´s AVR microprocessors. Toshiba T6963 controller is described in detail. The overall result of my bachelor’s thesis is the modular library written in C language (GCC). It provides a set of functions for simple graphic objects and controls drawing. The library is designed as a multi - layered one. It supports the usage of different LCD display controllers without any extensive program code modification.
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