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Wireless security facility
Gargulák, Lukáš ; Morský, Ondřej (referee) ; Zeman, Václav (advisor)
The content of this thesis is the design, construction and programming of wireless security device. This wireless security system consists of two units. Personal unit and sensor unit. This thesis compares two ISM bands 433 MHz and 868 MHz. The thesis presents a selection of parts for construction wireless security device. The work also deals with the structure of transmitted frames on the link layer. Marginally are discussed ways to reduce consuption AtmelAVR microcontrollers and also two ways of charging Li-Ion battery. It also outlined the firmware of both units. Its complete source code is included on the DVD.
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Stepper motor driver equipped with industrial communication
Nepivoda, Tomáš ; Baštán, Ondřej (referee) ; Arm, Jakub (advisor)
The main goal of this bachelor thesis is to design and realize driver for stepper motor, which could be controlled by supervising system using modern industrial communication network. The basis od this thesis is theoretical study on the subject of stepper motor drivers and industrial communication in the field of embedded systems. This theoretical study is then used for selecting the proper communication network and creating concept od the stepper motor. Thesis further describes design procedure and realization of hardware components and subsequent implementation of frimware. Last part of the thesis is dedicated to the creation of simple master device, which would be used for driver testing.
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Universal monitoring and diagnostic probe for serial communication
Dvořák, Ondřej ; Povalač, Aleš (referee) ; Záplata, Filip (advisor)
The thesis deals with design of a device for communication analysis in standardized serial interfaces, with differing parameters. The goal of the thesis is a complete design of a device including wiring diagrams, PCB, get PCB alive and design complete device firmware. The device will be able to process and analyze data on selected interfaces. The user controls the device with the use of USB interface, connecting the device with a PC or other computing devices. Communication is done by a simple protocol in ASCII, its design is included in this thesis. The device can analyze errors in the interface and inform the user about them. Firmware should be flexible, to allow the addition of more interfaces and protocols.
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Biometrical security system
Tříska, Martin ; Kučera, Pavel (referee) ; Macho, Tomáš (advisor)
This bachelor’s thesis deals with coplete design and implementation of access control system.using biometrical data. System is applicable in smaller applications. The first part contains an small introduction to fingerprint acquiring/processing and also describe selection of a communication interface between terminals and host system including possible ways of embedding into devices. The next part is covered in the practical implementation in terms of both hardware and software.
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Arterial Puncture Simulator
Martincová, Kateřina ; Szabó, Zoltán (referee) ; Friedl, Martin (advisor)
The topic of this smestral thesis is to design arterial puncture simulator, which could be used as a device for teaching first aid. At first there are presented and described simulators available on the market. Followed by the analysis of individual components that were selected for the construction of the simulator. The control unit, which switches the bistable valve is realized by Arduino. Liquid jetting is facilitated by expansion container. The result of this thesis is design and testing of components of prototype arterial puncture simulator.
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Service device for automatic sanitary equipment
Kudláček, Martin ; Levek, Vladimír (referee) ; Šteffan, Pavel (advisor)
The aim of this thesis is to inform readers about the basic principle of electronics for which the service module for the automatic sanitary technique will be designed, as well as design and describe the most important parts of the module theoretically. Likewise, the thesis deals with the most common mistakes in the design of printed circuits boards with respect to the resistance of the resulting device against interference. The implementation itself includes both module design and a communication algorithm for connecting multiple service modules and their remote control using the Raspberry Pi minicomputer. The thesis also contains a design of algorithm for verification of data transmission by the transmission system.
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Stopwatch for measuring of sports events
Tajč, Martin ; Petržela, Jiří (referee) ; Hruboš, Zdeněk (advisor)
The aim of this bachelor work is the construction of the electronic stop-watch for measurement at sports events. This stop-watch is primary designed for use at firefighters competitions. The first part of the work is focused on a flowchart of the stop-watch and an analysis of its parts. Some alternative methods, which could be used during the construction, are compared. In the following part, there is an algorithm for the microprocessor applied in it described and features of programming languages are briefly compared. Next in the text, there are a detailed user manual as well as a manual for executing of the display panel. In the supplement, particular electronic schematics and printed wiring boards are included.
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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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Theremin: Touchless Musical Instrument
Baštýř, Lukáš ; Šimek, Václav (referee) ; Strnadel, Josef (advisor)
This bachelor thesis deals with the design and implementation of a digital touchless musical instrument theremin. In the first part, the theremin, its features and existing solutions are first documented. The second part focuses on the documentation and testing of the software and hardware that can be used to solve this thesis. The penultimate part focuses on the actual implementation of the instrument and the creation of a working prototype. The final section tests functionality of the final prototype instrument.
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Audio D/A converter with external control using microcontroller
Špaček, Jan ; Stifter,, Jiří (referee) ; Kratochvíl, Tomáš (advisor)
This diploma thesis deals with the design of a laboratory measurement tool with ADC converter for audio and low frequency signals. In the introduction part a theoretical background of the ADC and DAC conversions are outlined. In the next chapters the technical solution of the laboratory converter is presented, including DAC with integrated circuit AD1852 and completed with digital audio receiver CS8416. This circuit secures compatibility with external audio devices with digital interfaces, like SPDIF or AES3. The digital receiver and audio DAC are added with serial communication interface for setup of the most audio and input parameters. This setup is operated by external microcontroller ATmega32 and original firmware. The thesis contains block diagram and schematic layout of the laboratory converter, including complete technical documentation for the construction and design.
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