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Multifunction board computer for motorcycles
Netáhlo, Tomáš ; Tošovský, Petr (referee) ; Brančík, Lubomír (advisor)
Master’s thesis deals with a design and a realization of multifunction board computer for motorcycles. The goal of the device is measuring speed, rotation speed of engine, temperature of ambient, temperature of engine, temperature in intake including signalization of overvoltage and hightemperature. The device is completed by above standard function such as measuring titl of motorcycle, climbing of route, route recording and data transmission to the computer. The thesis includes a complete solution of hardware and software part of the device.
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Emulator of 3.5" diskette drive using RS232 and SD memory card
Sedláček, David ; Hanák, Pavel (referee) ; Pavelka, Ondřej (advisor)
This thesis deals with the design of the 3,5" floppy drive emulator with ATMEGA microprocessor unit. The emulator has been designed according to the principles of designing electronic devices, there is also object-control application and firmware for a microcontroller, which supports MFM coding. The thesis also lists all the formats of data stored or transmitted along with some flowcharts.
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Design of measurement unit for analysis of surface materials properties
Kratochvíl, Robert ; Rozsívalová, Zdenka (referee) ; Frk, Martin (advisor)
The thesis deals with the application of laser beams for examination of material properties. The properties being examined are quality of surface finish and transmissivity of materials in the optical portion of the electromagnetic spectrum. A measuring device containing laser diodes as a source of laser beam and photodiodes for evaluation of examined phenomena serves for examination of both properties. Conversion of the signal to digital quantity and its further processing take place in a microcontroller. The data is then sent via a serial bus and a converter to a computer, where it may be saved in a user program and where the user can work with them later. The thesis contains results of reflectivity measurement of a set of metal samples with different surface finish. Transmissivity measurement was applied on a set of optical filters.
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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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Synchronization of the time using the GPS
Švábeník, Petr ; Šmíd, Petr (referee) ; Vyskočil, Pavel (advisor)
This thesis discusses about using the worldwide satellite system GPS for time and frequency synchronization. This thesis presents study about basic principles of the GPS system, its segments and ways of using this system. Some GPS receivers suitable for receiving the time marks (pulses) used for time synchronization are described. Thesis contents designing of the circuit that will receive time marks and it will digitalize and record external signal and send it with precision time information to PC for displaying and post processing. Thesis also discusses about both hardware and software development of the synchronization module and software used in PC.
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Wireless Messaging System
Musil, Tomáš ; Dlouhý, Jiří (referee) ; Sekora, Jiří (advisor)
The aim of thesis is a design of wireless pager, that can be used for short text messages transmission from the sender to a particular recipient. The report is sent from a computer via serial port. The application is based on microcontrollers, which provide data protection, evaluation and display data on the display of the receiver. The wireless transmission is effected via the RF modules, that are powered from batteries.
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The remote-control workplace of sensor technology
Knopp, Daniel ; Vaško, Cyril (referee) ; Adámek, Martin (advisor)
This thesis is focused on a specific virtual laboratory support, which is designed and created as a device capable of data transferring to display and/or computational unit via serial port. Both the device and common PC are generally a corner stone of each virtual laboratory, which can be also accessed via internet. Technique, significant factors with impact of analog disturbances on digital communication and realization of standalone virtual laboratory are described in detail.
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Design of control units for semiautomous convoy
Kolomazník, Vojtěch ; Růžička, Michal (referee) ; Mašek, Petr (advisor)
This bachelor thesis deals with a design of a low level control units for a semiautonomous convoy. A crucial purpose of control units is convoy vehicles control, where the designed unit will be able to control of steering and speed actuators, where PWM signals were used for actuators control. These are based on a high level system commands. Control unit is able to send ultrasonic sonar and battery level data to the high level control unit. The communication between high and low level control systems provides an USART communication interface.
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