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Realization of laboratory exercise using the ZigBee system
König, Petr ; Hrabina, Martin (referee) ; Miloš, Jiří (advisor)
The bachelor’s thesis includes ZigBee layer architecture mainly Physical Layer (PHY) and Media Access Controlv Layer (MAC). It demonstrates their parameters in practical realization. Main part of the thesis is a creation of laboratory measurement protocol using development kit of Jennic company. Students will be familiar with ZigBee standard due to this laboratory exercise
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Photographic prints and forming processes and their relations to another artistic media
Hrabina, Martin ; Wittlich, Petr (advisor) ; Rakušanová, Marie (referee)
This thesis is devided in two related fields. First of them observe photography in the 19th century in a broader context. Is focused on photography which borrow traditional art rules and aspects in aim to get an equal status between fine arts. This first part helped valuate technics of so-called photographic processes in the second part of the thesis. This domain of photography is concentrated not only on technology but also on problems of amateurism or a theory of artistic photography of the time. The last chapter presents the most important Bohemian representatives of this profession and demonstrates a broad scale of artistic posibilites on concrete samples.
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Remote switching of electrical appliances by the mobile phone
Hrabina, Martin ; Boleček, Libor (referee) ; Říčný, Václav (advisor)
The concern of this work is GSM remote control. First part is summary of requirements and possible solutions of given problem, discussing their complexity and tolerance against interference and unauthorized switching. Also, in the first part, there is selected one solution which is discussed in detail. Second part of the work consists of theoretical and circuitry design of GSM remote switch itself. End of this work is dedicated to the construction of whole device and checking its functionality.
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Renovation of tools steels for cold forming
Hrabina, Martin ; Mrňa, Libor (referee) ; Kubíček, Jaroslav (advisor)
Master’s thesis “Revovation of tools steels for cold forming“ characterizes wear resistant welds for tool steels. The thesis is dividend into two main chapters. The first chapter of the thesis is focused on the theory of wear for cold work steels. The theory is combined with an experimental chapter. The experimental part describes particular materials and technology for welding. The conclusion of the thesis is evaluated results of test for mentioned technology and welding conditions.
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Acoustical detection of gunshots in the open
Hrabina, Martin ; Tučková, Jana (referee) ; Sigmund, Milan (advisor)
This work is concerned with gunshot detection and recognition. Contains overview of published works and methods used in this field. Furthermore, it lists several commercial gunshot detectors. Binary gunshot detection and recognition algorithm is proposed which discriminates between gunshot and non-gunshot sounds occuring in nature. Algorithm is tested in Matlab. Proposed algorithm is implemented in TMS320C6713 digital signal processor, achieved results are compared.
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The Delivery of the Mixture Containing Abrasive Particles.
Hrabina, Martin ; Sluše, Jan (referee) ; Štigler, Jaroslav (advisor)
The aim of this bachelor thesis is focused on description of the transport equipment parts used in some industries for delivering of the mixture containing abrasive particles. The thesis is divided into some captures. Each of them deals with the transport issues. The first part of the thesis is focused on the flow of liquid in transport equipment. Second part describes particular parts of pumps and compares various kinds of them, highlighting their advantages. One of the significant topics of the thesis is the characterisation of pipeline using for the above mentioned transport.
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