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Study of return of heat sources for a family house
Pavlík, Michal ; Lisá, Hana (referee) ; Toman, Filip (advisor)
This bachelor’s thesis focuses on the calculation and selection of the most suitable heat energy source for a selected family house. A brief overview of these heat energy sources serves for a general understanding and clarifies their basic functions. By calculating the heat loss through walls, heated and unheated rooms, functional parts of the building, the ground, and ventilation, the total energy required for heating the house for one year was determined. Additionally, the total energy needed to heat water for 4 people every day throughout the year was also identified. Based on these collected values, four energy sources were selected and subsequently compared with each other in uncluttered graphs. The most suitable heat source was chosen after an economic analysis of return on investment.
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Picture generation using path tracing
Áč, Ondřej ; Dvořák, Vojtěch (referee) ; Pavlík, Michal (advisor)
This thesis deals with the problematics of computer-generated imagery using path tracing. The goal of this work is to create interactive computer program, which allows editing and rendering of photorealistic images of various scenes in real time. The work presents the concept of rendering equation, along with its known solutions, in the theoretical part of the work. Thesis describes in detail the solution using path tracing, based on the Monte Carlo integration technique, along with the benefits, it provides compared to the other techniques. Several hardware and software optimizations are then presented. Practical part of the work focuses on analysis of C++ source code and compiled assembly code whilst using hardware specific SIMD optimizations. Mandatory part of work is also the demonstration of program’s functionality, along with the measurements of achieved performance gains using manual optimizations.
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Analog switch for switched current circuits
Jahn, Michal ; Kledrowetz, Vilém (referee) ; Pavlík, Michal (advisor)
This bachelor’s deals with a design of analog switches using switched current technique and CMOS technology. The design of these switches was implemented and subsequently simulated in the CADENCE environment where the emphasis was on suppression of transient processes. It is a charge injection error and a clock-feedthrough error when charging the capacities of channel during switching on or opening.
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Solar power inverter
Gottwald, Petr ; Boušek, Jaroslav (referee) ; Pavlík, Michal (advisor)
Tato práce se zabývá návrhem výkonového měniče určeného pro použití ve fotovoltaických systémech. Klíčovým je použití programovatelného hradlového pole (FPGA) pro realizaci řídicích funkcí. Do detailu jsou diskutovány aspekty návrhu spínaných měničů a na základě takto získaných poznatků je zkonstruován funkční vzorek měniče.
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Modbus TCP interface
Krotký, Pavel ; Bohrn, Marek (referee) ; Pavlík, Michal (advisor)
Main puropose of this thesis is to design and develop Ethernet to serial interface converter. Ethernet and serial line protocols are briefly described. Appropriate microprocessor and hardware for realisation of each physical layars were choosen. Convertor uses Texas Instrument's TI-RTOS operating system. Convertor's purpose is to pass on communication between physical layers and also fulfill webserver role with configuration possibilities.
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Modular Power Supply for Formula Student
Ščípa, Samuel ; Bohrn, Marek (referee) ; Pavlík, Michal (advisor)
This bachelor thesis is focused on the theoretical analysis and design of switching power supply with galvanic isolation. The implementation of the design is in the form of the power and control part of the modular power supply. The device parameters are suited for the needs and requirements of the development department of the electric student formula. Design configuration achieves a maximum output voltage of 1000 V and a current of 100 mA, which are user-adjustable.
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Supercapacitors energy storage
Kovařík, Jakub ; Pavlík, Michal (referee) ; Boušek, Jaroslav (advisor)
This paper describes the design of DC/DC converters designed for charging supercapacitors and subsequent transformation of voltage to the desired value. In the text are presented decreasing and increasing switched-mode voltage converter including the calculation of the individual components and also the design of converter that combines both types. Using simulation software has been verified the function of each circuits, which can serves as a lower power backup supply.
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Laser projector for advertisement
Krist, Jakub ; Bajer, Arnošt (referee) ; Pavlík, Michal (advisor)
The scope of this work is to design equipment capable of using a single laser source project programmed image or text. Introduction is a summary outlining the basic principles of image projection in laser imaging. This thesis describes the design of a laser projector that is using microcontroller AT MEGA16 together with auxiliary electronics and rotating ring, able to draw the desktop system bitmap graphics.
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Central unit of the wireless sensors network
Ptáček, Zdeněk ; Macháň, Ladislav (referee) ; Pavlík, Michal (advisor)
This work deals with function and control description of wireless communication circuit nRF24L01+ and its possible use for the creation of local wireless sensor network of star topology. Further studies of the function of sensor network and designs the central control unit for measured data collecting. At the same time discusses the possibility of the battery supply and system optimization.
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