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Meassuring system for building constructions
Vladař, Martin ; Franek, Lešek (referee) ; Bradáč, Zdeněk (advisor)
This thesis deals with the measurement of physical quantities in building using decentralized system for data collecting. The system consists of Raspberry Pi as a master device of the system. There are three branches connected to this master device. Each branch consists of up to 32 modules for data-concentration from sensors of physical quantities. The Raspberry Pi has implemented web interface for displaying measured values and system administration.
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Industrial programmer Atmel AVR microcontrollers
Gryžboň, Jan ; Hanák, Pavel (referee) ; Pavelka, Ondřej (advisor)
The aim of this thesis is to design and implement an industrial programmer AVR microcontrollers from Atmel. The first section provides the theoretical knowledge of the AVR microcontroller. Furthermore, comparison of methods for programming the microcontroller and the selected method is an analysis of the speed of programming. The following is the entire design of industrial programmer which is implemented in the programming environment Eagle. In the penultimate part of the proposal is designed PCB. The final section is devoted to the revival of the programmer and programming.
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Control Unit for Autonomous Vacuum Cleaner
Matějů, Jan ; Kopečný, Lukáš (referee) ; Žalud, Luděk (advisor)
This paper is in introduction focused on review of robotic vacuum cleaning and evaluation of available products qualities. However the main focus of this paper is system design of all subsystems, control systems and PCD design of robot electronics. In this paper is also described a method for evaluating approximate distance of robot from the obstacle. There are also described problems of system design of IR proximity sensors. The last part of this work is development of control software for robot and its testing.
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Autonomous programmer of AVR microprocessors with Ethernet connectivity
Verner, Lukáš ; Daněček, Vít (referee) ; Kravka, Martin (advisor)
he main purpose of this semestral thesis is to get to know programming of Atmel AVR microcontroller, working with SD/MMC cards, working with ethernet (TCP/IP) to create a standalone programmer of AVR microcontroller with ethernet connectivity. The first part deals with the questions of programming theory of memories inside microcontrollers and description of programming algorithm. The most used programming method is called „In System Programming“ - ISP. This method provides easy and fast manipulaton. Concept of this programmer is designed for this ISP method. In this thesis is too explain how to work SD/MMC card and file systém FAT16. This knowledges are necesary to store binary program inside standalone programmer. In final part and in attachments there is hardware design, electrical scheme, bill of materials, printed circuit board.
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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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DDS Based High-frequency circuit analyzer
Priškin, Jiří ; Brno), Tomáš Mádr (DCOM (referee) ; Šebesta, Jiří (advisor)
At first this thesis is dealing with the basic principles of network analyzers and afterwards goes to propose conception of a polyscope, as a special type of the scalar network analyzer, designed for magnitude frequency response measurement of two-port devices. As a result of this part of the thesis is the polyscope's block circuit diagram and also selection of key integrated circuits for sweep generator, logarithmic detector and control circuits. As the following part of the thesis is a design of the all basic analyzer's circuits resulting in their schematics diagrams and printed circuit boards, do assembly of all modules and mechanical construction of the instrument and look of the front panel. Some of the tasks is implementation of the firmware and personal computer application able to download measured data from the circuit analyzer via USB and generate chart in Microsoft Office Excel book.
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Customer proprietary information system
Kojecký, Jan ; Roupec, Jan (referee) ; Heriban, Pavel (advisor)
The work deals with the development of custom business information systems for ISPs. The information system consists of two main modules – the user module, which manages all the necessary data and hardware module, which contains information on technical equipment and network infrastructure of company with links to transmitted data monitors. The information system is running on Linux server.
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Design and implementation of modules for teaching and developing applications with microcontroller Atmel AVR
LANGMAJER, Miroslav
This thesis is based on the design and production of teaching kits with expansion modules which are based on the Atmel AVR microcontroller. Kit consists of a plate containing processes and basic power modules directly on the board and expansion modules "SIMAČ". "SIMAČ" modules are virtual elements that simulate the real elements and they are commonly used in industrial automation. Because of their cost they are integrated in extension kit as programmable modules. It also contains basic theoretical information about working with ATMEL AVR microcontrollers. Expansion modules with module development board and disc which will be loaded all the schemes, programs and technical documentation for individual districts will be attached to the thesis.
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Opensource solution for small ISP
Vomáčko, Vít ; Palovský, Radomír (advisor) ; Pavlíček, Luboš (referee)
Focus of this work is to create a comprehensive look at open source solutions to enable small companies to make up their ISP routing infrastructure. Aims to explore the available alternatives for routing software and related services. Then describe the important features and characteristics which are taken from real operation of such a solution and analyze it in parts. Shows how to modify other standard Linux distribution to offer the necessary functionality. Describes the security mechanisms to prevent its further spread of the complexity of the system and degrade its performance. Outlining how to address the monitoring infrastructure as well as running services it provides to customers. It also tries to show which areas are not sufficiently operational and offers suggestions for further work in developing such a solution. Working mainly draws on the experience gained from long-term effort to launch the best solution, but do not tie the hands of its creators and allow colleagues to avoid various failures and shutdowns.
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Comparison of Czech Internet providers
Dostál, Václav ; Toman, Prokop (advisor) ; Bébr, Richard (referee)
Cílem této práce je popis trhu s vysokorychlostním připojením k internetu v České republice a porovnání nabídek tohoto připojení. V práci jsem se snažím především o stručný přehled jednotlivých technologií používaných k internetovému připojení a následně o porovnání nabídek jednotlivých poskytovatelů na našem trhu, za účelem snazší orientace na trhu. V samotném srovnání nejprve rozděluji jednotlivé poskytovatele dle technologií a poté je porovnávám hlavně na základě rychlosti a ceny, přičemž jsem se snažím vzít v úvahu i ostatní parametry jednotlivých nabídek. Za osobní přínos pro tuto problematiku považuji podání uceleného porovnání služeb poskytovatelů internetu, stejně tak jako vysvětlení problematiky jednotlivých technologií, které toto připojení umožňují.
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