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GPS tracker with GSM communication using SMS protokol
Remeš, Adam ; Drexler, Petr (referee) ; Szabó, Zoltán (advisor)
The objective of this semestal thesis is the design and implement moduls device for GPS location and temperature with GSM transmission, which is used to determine the position of the object at the request of users using SMS messages. It is designed for watch vehicle and foremost locations already stolen vehicle. Part of this work is the design of the main module GPS location, source module and a module lcd for displaying the data.
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Voltage regulator module for graphic card repair
Kožuch, Matúš ; Steinbauer, Miloslav (referee) ; Szabó, Zoltán (advisor)
The topic of this thesis is the design and implementation of multi-phase switching power supply of low voltage and high current which will be used for graphics card repair. Specifications of the power supply feature a minimal output current of 150A, an output voltage ranging from 0,9 up to 1,5V that is adjustable using PWM VID or set to a constant level and fully passive cooling. The thesis also covers the methods used for overcurrent and overvoltage protection followed by the basic topologies of dc-dc converters, their design and component selection. The designed external regulator is equipped with eight phase integrated controller, which senses the output voltage and current of each phase and balances them, while also providing an overcurrent and short circuit protection.
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Flight path planning for drone swarms
Procházka, Martin ; Szabó, Zoltán (referee) ; Janoušek, Jiří (advisor)
This bachelor's thesis addresses the issue of planning flight paths for drone swarms with specified safety constrains and with the emphasis on the feasibility of real-world usage. Along with the design of the planning algorithm itself, this thesis also implements an add-on for the 3D environment Blender, which can be used to design a flight mission, verify safety constrains and export the mission itself.
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Logging station for humid environments
Pavlík, Jan ; Roubal, Zdeněk (referee) ; Szabó, Zoltán (advisor)
This thesis is about the design of a meteorological station deployed in a wet environment and its construction. The station will be used for measuring meteorological instrumentation in caves, because of that the station was designed to minimize its power consumption. Firmware was designed, to allow remote control of the station. A major part of the thesis is concerned with selection and description of the sensors and components used. Near the end of the thesis the control algorithm, communication interface and construction of the device is described.
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New electronics for laser harp
Takács, Peter ; Kříž, Tomáš (referee) ; Szabó, Zoltán (advisor)
The aim of this thesis is to describe in detail the design of the electronics of a laser harp. This thesis does research on the history of digital musical instruments designed since the very beginning of electronic music. Furthermore, this paper debates over the advantages and disadvantages of the laser harp designs. This thesis lists the most common types of sound synthesis and includes the design of a power amplifier circuit. It writes about the output types this digital device has. The design of the power supply circuit and other necessary circuits, such as voltage converters, which are responsible for providing the correct voltages for all the various circuits and devices are also thoroughly detailed. The paper reviews the advantages and disadvantages of several optical sensors with different characteristics. This thesis also describes the steps of designing a High-Pass filter to filter out the unwanted ambient light. This documentation also describes a simple mist generator system, which distributes water vapor into the air. Moreover, it also describes the role of the microcontroller in this circuit and how it controls the individual elements. The thesis describes how to operate the device.
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Design of a new ion counter for the nature environment
Roubal, Šimon ; Szabó, Zoltán (referee) ; Roubal, Zdeněk (advisor)
Subject of this bachelors thesis is an realization of new control board for iontmeter that is developed at UTEE. Iontmeter must be capable of fully autonomous measure in outside contitions. That means it has to be able to run on batery for a long time and has to be to resist outside weather conditions. Measured data will be saved on an SD card and also sent using GSM network to the IoT server.
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Laboratory electronic load 400 W
Horna, Aleš ; Szabó, Zoltán (referee) ; Steinbauer, Miloslav (advisor)
This thesis deals with the construction of a laboratory electronic load purpose of which is to test various sources of electric energy, for instance electronic power supplies or accumulators. The thesis states possible designs of electronic circuits forming such an electronic load, it mentions factory manufactured devices, it describes the way of designing parts of the device, choice of components, conduction of circuit simulations for function verification of designed circuits and mechanical construction.
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SMD Rework station
Szabó, Michal ; Roubal, Zdeněk (referee) ; Szabó, Zoltán (advisor)
This thesis describes the theory of solder joint and conditions under which it is formed correctly. Further, methods of hand soldering are discussed, and possibilities of temperature regulation of soldering tip are analyzed. Methods of creating a soldering station and its key features are depicted. In practical part, the solution of how to create a soldering station with soldering iron, desolder gun and heatgun is given and is constructed. While testing a defect is found that prevents the power portion of soldering station to function properly and prevents completion.
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Digitally controlled laboratory power supply
Spáčil, Petr ; Drexler, Petr (referee) ; Szabó, Zoltán (advisor)
This bachelor thesis deals with the divison and research of DC voltage sources. It also describes how linear and switch mode power supply works. The 8-bit ATmega16 microcontroller from the ATMEL family of AVR microcontrollers is further described. Part of this bachelor thesis is the desing of the laboratory power supply source 30V / 3A, which is in the topology of switched pre-regulation. The ATmega 16 microcontroller provides measurement and displaying values on the display.
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