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GPS position recording system
Kokeš, Ondřej ; Magát, Martin (referee) ; Kadlec, Jaroslav (advisor)
The system conducting an electronic record of drives employing GPS enables simply track the vehicle running and traffic. As vehicle is running, information is gathered and saved into the memory module, out of which the driver's report book is generated afterwards. The submitted work is involved in brief summary of possibilities that might be used during implementation of the project and furthermore during complete solution of such a system, hardware and software parts included.
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Internet schematic editor
Popelka, Lukáš ; Biolek, Dalibor (referee) ; Kadlec, Jaroslav (advisor)
The diploma thesis deals with creating of electronic schematics in editor using web interface. The editor generates electrical circuit text file according to Spice netlist specification. The program has been created in Java and takes an advantage of object oriented programming language. The editor is a part of a web page and is executable as an applet. The diploma thesis describes a programming language selection, program layout and implementation. Thesis contains programming code examples, window illustration and component drawings. Depth-first search algorithm has been used for nodes number assignment. An OrCAD PSpice reference guide was used for netlist.
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Microposition control device
Chmelík, Jan ; Magát, Martin (referee) ; Kadlec, Jaroslav (advisor)
This thesis deals with control of a micropositioning device. Aim of this study was to design a device that will control the piezzo-shift in three dimensions with adjustable speed and step-size. A further goal was to create a software for which allow to employ a user-defined shift profile to control the device. Actual construction of the device, based on a microcontroler Microchip 18F4550, is described in the practical section of the work.
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Electronic information card
Šafář, Viktor ; Kadlec, Jaroslav (referee) ; Šandera, Josef (advisor)
Tato diplomová práce se zabývá návrhem elektronického informačního štítku, jehož základem je maticový LED displej. V teoretické části jsou probrány použitá rozhraní a periferie mikrokontroléru a PC a diskutuje se nad možnostmi kódování českých znaků. Dále se probírá krok za krokem návrh zařízení. Nejdříve jsou vytyčeny hlavní požadavky a funkcionalita zařízení, následuje výběr vhodných komponent a je navrženo elektrické schéma. Jádrem zařízení je mikrokontrolér Microchip PIC, pro který je dále navržen program. Nakonec je popsána a naprogramována aplikace pro MS Windows, která se se zařízením komunikuje.
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Structural Properties of Ultralight Concrete and its Optimal Application in Structures
Kadlec, Jaroslav ; Bílek,, Vlastimil (referee) ; Adámek, Jiří (referee) ; Terzijski, Ivailo (advisor)
This doctoral thesis deals with design of three variants of ultra lightweight concrete (ULC) and their mechanical properties. The ULC usually has the dry density of 900-1200 kg/m3 and it is possible to use it for load bearing structures. Low density of ULC is achieved by replacing heavy aggregate for lightweight aggregate. The lightweight aggregate is known under the trade name Liapor in the Czech Republic. To achieve density below 1000 kg/m3, an aeration of the paste has to be done. An exchange of heavy aggregate for lightweight aggregate results in a very fragile behavior of ULC. A great attention is paid to bond strength between concrete and reinforcing steel in the thesis. In addition to the standard test of bond strength testing by pull-out, a modified pull-out test is designed, which includes the effect of minimum reinforcement cover. The mentioned test more precisely simulates a real behaviour of the structure exposed to bending moment. The doctoral thesis tries to point out on different parameters between measured data and the applicable standard for the design of load-bearing structures.
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Software tool for conversion circuit design from Spice netlist format to graphical format
Forman, Zdeněk ; Prokop, Roman (referee) ; Kadlec, Jaroslav (advisor)
User interface for conversion of circuit connection, which is registred in SPICE netlist format in appropriate graphic presentation, is very interesting. Not a lot of software packages focused on processing of electrotechnic schemes have this interesting option. Generating of graphic representation of netlist is based on analysis of text account of network and location of parts to drawing cloth. These parts are located on the basis of coveted loops of network. System for dislocation contains undefined parts for faster algorithm of dislocation. This kind of software can be used every time when is necessary to create some graphic representation of tested network.
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