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Comparison of switching LED drivers
Káňa, Vojtěch ; Šotner, Roman (referee) ; Frýza, Tomáš (advisor)
This bachelor thesis describes switching LED drivers and their features. Is chosen and compared five integrated circuit, that one of them will be included in two different topologies. Especially in Buck-Boost and SEPIC configuration. Their characteristics and features will be simulated and designed in suitable software. Made equipment will be tested and compared their achievements properties. For a both of these drivers is required specified conditions as constant output current, input and output voltage.
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Topological and Attribute Revision of Digital Maps
Dubec, Marek ; Sedláček, Svatopluk (referee) ; Ježek, Jiří (advisor)
The topic of this bachelor’s work is the attribute and topological revision of a digital map. In the work it have described geodetic software’s for attribute and topological revision of a digital information’s, with detailed described each function in each geodetic software. It’ll be created sample drawing of topological errors for testing each software. In the work are summary and evaluation results of the all tests
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FTTB Network Design
Reichert, Pavel ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
The purpose of this master’s thesis is to explain the issues of the FTTx network design. The main idea of this work is to describe to readers the methods of the designing the optical access networks. Especially we will speak about the building technologies and different topologies used in a practice. The different technologies of optical access networks’ building and various parameters, which are necessary to take into account in the designing of these networks, will be introduced. In the theoretical part, methods of measurement, which are like the needed part of each optical access networks’ building, will be described. Two purposes of the FTTB networks with all proprieties will be made and offered. One purpose will be solved by Point to Point topology and the second purpose will be solved by Point to Multipoint topology. Following the confrontation one of these purposes will be chosen and realized. By ITU recommendation, measurements will be performed on the built optical trace. The final protocols will be elaborated from these measurements. The built trace with all final reports will be prepared for assignment to the subscriber.
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New laboratory tasks of the KNX system
Welter, Martin ; Kunc, Josef (referee) ; Bátora, Branislav (advisor)
The bachelor's thesis deals with the design of laboratory tasks for the control of the KNX system electrical installation using devices from the company Hager and Berker. The first part discusses the characteristics of the KNX system, topological arrangement, ETS software, communication media. Furthermore, the remote control of KNX wiring is briefly discussed with subsequent visualization from various companies. The next part is devoted to getting acquainted with the devices that will be used for laboratory tasks with the subsequent creation of laboratory instructions. All functions have been programmed in ETS5 software. Finally, an overall evaluation is made.
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Ambica s.r.o. Company Network Infrastructure Design
Vendl, Jan ; Dušek, Libor (referee) ; Ondrák, Viktor (advisor)
The main goal of this thesis is to make a complex computer network infrastructure desgin of company, determine the best technology and logical placement of individual network elements to provide the best function of the whole system. This thesis is based both on the analysis of company needs and on financial possibilities and is complemented with a tentative costs calculation.
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Lie groups and their physical applications
Kunz, Daniel ; Kureš, Miroslav (referee) ; Tomáš, Jiří (advisor)
In this thesis I describe construction of Lie group and Lie algebra and its following usage for physical problems. To be able to construct Lie groups and Lie algebras we need define basic terms such as topological manifold, tensor algebra and differential geometry. First part of my thesis is aimed on this topic. In second part I am dealing with construction of Lie groups and algebras. Furthermore, I am showing different properties of given structures. Next I am trying to show, that there exists some connection among Lie groups and Lie algebras. In last part of this thesis is used just for showing how this apparat can be used on physical problems. Best known usage is to find physical symmetries to establish conservation laws, all thanks to famous Noether theorem.
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Alternative Ontology: topological Imagination and Topological Materialism
Mrva, Jozef ; Csefalvay,, András (referee) ; Kořínek,, David (referee) ; Cenek, Filip (advisor)
The dissertation Alternative Ontology, subtitled Topological Imagination and Topological Materialism, focuses on the analysis of spatial phenomena and space in the intentions of the mathematical discipline of topology, which is interested in spaces from the point of view of set theory. My goal is to present topology as a tool not only for contemporary philosophy, but also for artistic creation. For the purpose of the dissertation, I formulate two concepts: Topological imagination and Topological materialism. Topological imagination is a tool and method for creating and thinking with the consciousness of space as a dynamic structure, which is not bound only by fixed laws of geometry. This method originated as the name of my long-term artistic practice, which is largely based on the study of space, topology, knot theory and the search for ways of their application in artistic and theoretical work. I propose Topological materialism as a concept that combines the thinking of networks and multi-dimensional spaces with the philosophical currents of the materialist tradition, especially the New Materialism. My basic thesis is that these cannot be perceived separately. Materialism cannot be thought without its spatial dimension, and topology without anchoring in the material world becomes a mere abstraction. The second part of the dissertation is devoted to the analysis of specific spaces: the space we inhabit, which I call phenomenological, infrastructure, logistics space, information space and the space of capital. In addition to individual analyzes, I also focus on their intersections, connections and joint operation.
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Properties of the physical layer of ZigBee
Humpolík, Tomáš ; Frýza, Tomáš (referee) ; Prokopec, Jan (advisor)
The ZigBee standart works on using physical and data link layer of IEEE 802.15.4 standart. Three bands were defined (2.4GHz, 915MHz and 868MHz). There was also number of physical layers defined, each of them using one of the three bands and number of modulation and spreading functions. This thesis is focused first of all on specification 2,4GHz physical layer, which is world-wide used because this band can be used (with observace of the local rules) without license. Thesis is in its first part focused on modulation function, as well on used spreading functions and number of channels for each physical layer. In the second part is paid attention to demonstration kit by ATMEL Corporation, which enables associate a simple network in star topology and using the network for demonstration of simple functions of associated devices, and kit by Radiocrafts corporation, which is used in laboratory work. Laboratory work is focused on characteristics measurement during data transfer.
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System for digital short-range wireless communication
Rébl, Miroslav ; Kolka, Zdeněk (referee) ; Tošovský, Petr (advisor)
This project includes the design of the System for digital short-range wireless communication. The methodology of the communication between net only one device type based system is proposed. The thesis describes system communication rules and used ways for protection of a correct transmission. Furthermore,the project descibes realizasion of the digital wireless communication with selected functions.
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Laboratory exercises explaining network technologies and protocols
Coufal, Tomáš ; Dvořák, Jan (referee) ; Langhammer, Lukáš (advisor)
Diploma thesis deals with creation of laboratory exercises in ns-3 environment. Each one of three exercises consists of theoretical introduction and instructions to carry out the simulation. The first exercise´s topic is routing protocol BGP. The second exercise is focused on transport protocols TCP, UDP, SCTP. In the last exercise, the basic network devices and topologies are simulated. The ARP and RIPv2 protocols are simulated as well.
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