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Beehive Scale
Žilka, Martin ; Musil, Tomáš (referee) ; Novák, Lukáš (advisor)
The focus of this bachelor‘s thesis is to retrieve available information about possibilities of solution design of a beehive scale, which should be used in the countryside and has the option of remote data sending. The next step is to build a prototype of that scale. The introductory part contains a parameter description of eight types of commercial beehive scales. The next part is focused on principles, positives and negatives of some commercial weight sensors. The following section deals with communication interfaces used in the IoT. In conclusion is made a selection of the most appropriate technologies for remote weighing beehives, based on the previous research. The last part is devoted to the description of prototype construction.
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Current source for the solid-state laser amplifier
Žilka, Martin ; Duz, Aleksei (referee) ; Novák, Lukáš (advisor)
This thesis deals with theoretical design of solid-state laser beam amplifier power supply. The introductory part contains a description of operation principles of some step-down DC/DC converter topologies, including their advantages and disadvantages. The next chapter describes design issues of a DC/DC converter design, including full schematic diagram. The conclusion is focused on practical assembling and testing of the designed device.
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Automatic control of small aggregate on water power plant
Žilka, Martin ; Marada, Tomáš (referee) ; Němec, Zdeněk (advisor)
This thesis try to define concept of automatic control of small aggregate on water power plant. Under consideration circuit of this water power plant is divide to few subcircuits for which are define specific processies which this circuits to do during automatic control. Circuit of turbine is detail defined for specific hydroenergetic source and is designed for using swirl turbine and controled by PLC Simatic S7 224 XP from Siemens.
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GPS locator for IoT network
Šulc, Patrik ; Tomíček, Pavel (referee) ; Žilka, Martin (advisor)
Bachelor thesis is focused on build a GPS locator communicating wirelessly over IoT networks. The GPS locator sends an alert when motion is detected. The device is powered by batteries with minimal maintenance. The goal is to achieve minimum dimensions. The work first focuses on the survey of commercially available equipment. Subsequently, there is a summary of available ways of sensing device movement, accurate device location and sending messages to the Internet of Things using LoRaWAN. After a search of components, the practical design of the device is presented in the work.
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Route trajectory planning for autonomous rovers guided by GPS signal
Rára, Michael ; Žilka, Martin (referee) ; Pavlík, Michal (advisor)
The goal of the thesis is to describe developed algorithms in path planning problems for autonomous rovers. The reader will be introduced with technology of GNSS neccessary for right function of the algorithms. Main part of the text is focused on three different path planning algorithms which can be used for waypoint crossing, field coverage and path planning trajectory in bordered zone with static obstacles.
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Diagnostics unit for train protection system
Dvořák, Michal ; Žilka, Martin (referee) ; Tomíček, Pavel (advisor)
Aim of this work is to design electronic device capable of transfering and saving sent data from a comunication bus. First was introduced importance of such device in context of interstate rail travel. Next, the work introduces all the necessary norms, which must the device in question comply with, and how such norms affecting the design itself. This is followed by introduction of used communication protocols and buses and their implementation. Next, reader is introduced to design of the schematic and design considerations for PCB design. In the last chapter the data rate performance of the modul is evaluated.
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Current source for the solid-state laser amplifier
Žilka, Martin ; Duz, Aleksei (referee) ; Novák, Lukáš (advisor)
This thesis deals with theoretical design of solid-state laser beam amplifier power supply. The introductory part contains a description of operation principles of some step-down DC/DC converter topologies, including their advantages and disadvantages. The next chapter describes design issues of a DC/DC converter design, including full schematic diagram. The conclusion is focused on practical assembling and testing of the designed device.
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Picture, sound and text in art and at school
Žilka, Martin ; Brejcha, Šimon (advisor) ; Sedlák, Michal (referee)
This diploma thesis is based on the assumption, that we live in the speeches of our surroundings. These manifestations and answers environments affect various aspects of our lives. One answer is surely sound. By examining this phenomenon, in the context of expressive subjects at primary school, we can achieve a closer engagement with our environment and understand its functioning. Formation of this feeling of belonging is a basic task of the school. The main aim of this thesis is to introduce a didactic and way of working potential subject at the elementary school, which will combine the expressive target education and deepening environmentality. ŽILKA, Martin: Picture, sound and text in art and at school. [Diploma thesis] Prague 2014 - Charles University in Prague, Faculty of Education, Department of Art Education, 68 pages. Key words: Sound and picture, text and picture, new media, multimedia, music, kontext, environment
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Beehive Scale
Žilka, Martin ; Musil, Tomáš (referee) ; Novák, Lukáš (advisor)
The focus of this bachelor‘s thesis is to retrieve available information about possibilities of solution design of a beehive scale, which should be used in the countryside and has the option of remote data sending. The next step is to build a prototype of that scale. The introductory part contains a parameter description of eight types of commercial beehive scales. The next part is focused on principles, positives and negatives of some commercial weight sensors. The following section deals with communication interfaces used in the IoT. In conclusion is made a selection of the most appropriate technologies for remote weighing beehives, based on the previous research. The last part is devoted to the description of prototype construction.
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Picture, sound and text in art and at school
Žilka, Martin ; Brejcha, Šimon (advisor) ; Sedlák, Michal (referee)
This diploma thesis is based on the assumption, that we live in the speeches of our surroundings. These manifestations and answers environments affect various aspects of our lives. One answer is surely sound. By examining this phenomenon, in the context of expressive subjects at primary school, we can achieve a closer engagement with our environment and understand its functioning. Formation of this feeling of belonging is a basic task of the school. The main aim of this thesis is to introduce a didactic and way of working potential subject at the elementary school, which will combine the expressive target education and deepening environmentality. ŽILKA, Martin: Picture, sound and text in art and at school. [Diploma thesis] Prague 2014 - Charles University in Prague, Faculty of Education, Department of Art Education, 68 pages. Key words: Sound and picture, text and picture, new media, multimedia, music, kontext, environment
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