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Remote car monitoring
Strecker, Zbyněk ; Fiedler, Petr (referee) ; Bradáč, Zdeněk (advisor)
The main goal of this work is to design an efficient and cheap car-alarm with an electricity consumption not exceeding 1mA in the stand-by mode. The first part focuses on the conception of the car-alarm. As the best option - GPS/GSM car-alarm conception is chosen. Then the design of the switching power supply, communication via RS232 with the GSM module, and GPS module, I2C communication with accelerometer and timer IC, and design of the display module are described. Furthermore, the process of how to code/decode sms into the PDU format is also discussed in this part. The second part provides some basic empirical characteristics of the switching power supply (efficiency, switching frequency etc.). Then the owchart of the main loop is explained, followed by an example of the sms which the car-alarm sends in case a car theft. Explanation of how to set up timer, acceleration threshold and the time between the check of the sms commads is the subject of the next section. Fifth part deals with the installation the car-alarm into a car which is illustrated on the Skoda Favorit example. Total costs and also different cost items are listed just before concluding and suggesting some potential improvements of the device.
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Patient data trasfer over GSM
Pavliš, Jaroslav ; Dlouhý, Jiří (referee) ; Švrček, Martin (advisor)
This diploma thesis is concerned with possibilities of patient data transfer from a pacemaker or implantable cardioverter-defibrillator to physician over GSM. Theoretical part describes options of data transfer in GSM networks, data appropriate for sending and a structure of message is proposed. A device, that is able to send medical data in a form of SMS messages is designed and constructed. The device uses a Freescale MC68HC908GP32 microcontroller, character display with a Hitachi HD44780 controller and a cell phone Sony CMD-J70. The program for microcontroller is written in assembler for HC08. For tabular view of received messages, an application software for PC was created.
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Helping tool for AVR microcontrollers programming in C language
Ševčík, Radek ; Dřínovský, Jiří (referee) ; Frýza, Tomáš (advisor)
This article describes AVR Wizard programme that was developed for AVR Studio. This software simpliefies microcontrollers (MCUs) programming in a way of general peripheries settings and registers settings for varied MCUs. AVR Wizard is able to generate C language-based MCU main programme structure with chosen settings. User-friendly handling and no longer detailed studies of MCU datasheets are also main advantage.
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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.
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Battery powered datalogger
Rezek, Petr ; Kučera, Pavel (referee) ; Bradáč, Zdeněk (advisor)
The diploma thesis deals with the questions of battery powering, measuring of analog physical values using microcontroller and recording of data on a memory SD card Bibliographic reference: REZEK, P. Battery powered datalogger. Brno: Brno University of Technology, Faculty of Electrical Engineering and Communication, 2008. 65 p. Supervisor: Ing. Zdeněk Bradáč, Ph.D.
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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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Measurement of the vibrations
Diblík, Jan ; Kolouch, Jaromír (referee) ; Biolková, Viera (advisor)
Diploma thesis is focused on principles of measuring the vibrations using accelerometers and using them for making vibration measuring instrument with focus on modern integrated digital accelerometers. In the first part are described ways to measure acceleration and vibrations with available technical supplies with respecting place and purpose of measuring. In practical part are measured characteristics of used sensor, instrument for measuring vibrations is designed and built and for few experimental object vibrations or acceleration are measured and graphical interpreted.
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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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HC08 Microcontroller Development Kit
Hájek, Ondřej ; Sekora, Jiří (referee) ; Čížek, Martin (advisor)
Presented bachelor degree programme is aimed on design and implementation of a development board for Freescale HC908QB8 microcontroller from HC08 family. The board will allow the user to test a variety of typical microcontroller applications including temperature measurement, intelligent LCD interfacing and I2C bus communication. The development board can be programmed using universal DBG08 serial programmer. Care was taken to minimize the probability of an accidental misconnection causing potential damage to the circuit, which makes the device suitable for educational purposes.
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Microprocessor Controlled Power Measurement System for Frequencies below 10GHz
Klíma, Martin ; Lukeš, Zbyněk (referee) ; Urbanec, Tomáš (advisor)
The aim of this work is to design a microprocessor controlled power measurement system which is based on the logarithmic detector AD8317, then to create a printed circuit board and to test its functioning. The logarithmic detector AD8317 is acceptable for measurement of high frequency signal’s power of the level between approx. –55 dBm and – 3 dBm in the frequency bandwidth of 1 MHz to 10 GHz. Its output provides DC voltage which is corresponding to the decibel-scaled level of the input signal. This is suitable for A/D conversion and digital processing by the microprocessor. The result of the work is a complete measurement system.
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