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Laser Projector
Svoboda, Pavel ; Burian, František (referee) ; Žalud, Luděk (advisor)
The aim of this thesis is to create a system, which draws the graphics with the help of a set laser project and eventually is able to synthetize several coloured rays and thus realise a multicolour drawing. The whole system is controlled by a Raspberry PI microcomputer and the data is sent to it from a PC via an Ethernet cable. The transmission of the projector device was identified and possible ways of improving the device were suggested. The results of this thesis allow creation of a multi-coloured vector picture, transferring it into the device and depiction on the project desktop. The whole device can therefore be used for example for the purpose of a presentation.
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JavaME communication client
Svoboda, Pavel ; Mácha, Tomáš (referee) ; Číka, Petr (advisor)
This diploma thesis deals with developing multimedia applications on Java Micro Edition platform. The aim of this work is to design and implement the application which could establish a call between two users. The first part of the work describes J2ME platform, its two configurations and profiles. Next part is focused on Session Initiation Protocol and Real-time Transport Protocol. The application design consists of choosing the suitable virtual machine JVM, SIP and RTP libraries. The main part of this work describes application structure, graphic user interface and installation packages creating. It also shows a way of customizing the media stack - Java Media Framework, version Cross Platform.
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Wideband methods of data transmission over power networks
Svoboda, Pavel ; Mišurec, Jiří (referee) ; Zeman, Václav (advisor)
The aim of this work was to peruse and desribe the high-speed data technology communicating over energy network. In this work was investigated broadband system communicating over low power distribution network. The laboratory network was designed for measuring parametres of this communication and performed set of tests. Lended devices were described, properties of technology specification and methods of connection and management were introduced. Management, configuration and measuring over web interface on the NMS device was described and simple dividision into corresponding functional blocks corresponding to structure of web bookmaks was made. Metodology of individual tests, grounded on documentation “recomandation” RFC and on introduced works, was elaboratly described. Used tools, their properties and managements were described. The transmission speed on application and physical layer were followed primarily, frequency dependencies on signal noise ratio and bits per carrier were followed secondary. Measured results from individuals tests were compared among each other and evaulated. This observation leaded into decision on needed criteria for varius application. The suitaibility for integration into communication network for maintaining corresponding QoS was appreised. Testing and chosen types of tests in this project were standardized and integrated into ITU standard. Individual tests are able to compare from the view of their testify charactestic.
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Materials for IV. generation power plants
Hovorka, Martin ; Svoboda, Pavel (referee) ; Šnajdárek, Ladislav (advisor)
The aim of this thesis is to describe material needs of chosen Generation IV nuclear reactors – VHTR, SCWR, and MSR with the emphasis on the VHTR. It describes the main principle and a constructional arrangement of VHTR components with its material demands. SCWR and MSR reactors are described in terms of its material requirements. The middle part of this thesis is dedicated to the available material candidate analysis. Main material properties are discussed and at the end of this part the suitability of chosen materials for a flange joint in VHTR heat exchanger is assessed. The last chapter (the practical part) is focused on an experimental proposal of changeability of older materials by the new ones using the electron beam welding method.
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Test pressurizing equipment for U-pipes
Hrdlička, Milan ; Šnajdárek, Ladislav (referee) ; Svoboda, Pavel (advisor)
In this bachelor thesis I would like to introduce you to exchangers which use U-tubes and creating a functional pressurizing product. The product has to securely attach the tube and perform the pressure test of the medium. Its control has to be simple and easy. In the thesis I also focused on their constructional solution and possible improvements.
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Design of fuel flow meter
Krejčí, Martin ; Svoboda, Pavel (referee) ; Dvořáček, Jiří (advisor)
This thesis deals with the structural design of flow meter for fuel at petrol stations. Begin of work deals with the theory of flow measurement. The brief overview of different types of flow meters is shown here. Coriolis flow meter is described in more detail. Another part includes the design options of the flow meter. One of them is selected for further processing.
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Design of universal wire bending machine
Nezval, Jan ; Svoboda, Pavel (referee) ; Brandejs, Jan (advisor)
This bachelor’s degree thesis deals with the specification, design and subsequent construction of a CNC wire bending machine for use with aluminium alloys. The machine is designed for bending suspension hooks and tension springs for use in anodizing processes. This thesis also briefly describes the anodizing process, outlines specifics of the suspension parts, the current state of the wire bending machine market and the solution design. Finally there is a breakdown of the individual parts.
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