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Assesment of the meaning of Polarization Mode Dispersion
Červenka, Vladimír ; Rampl, Ivan (referee) ; Kyselák, Martin (advisor)
This thesis describes the most important types of distortions in fibre optics during transmission. They are divided into two main groups, linear and nonlinear. The linear phenomena consist of internal and external attenuation, different kinds of dispersions and negative effect of signal noise. The special attention is focused on polarization mode dispersion. The impact of the nonlinear phenomena on fibre optics in high date rate is discussed as well. Furthermore, the negative effects in fibre optics and their causes are deeply analyzed on results gathered from simulation of some transmission lines. There are presented many methods for counting the meaning of polarization mode dispersion, for example the theoretical model including implementation on physical layer and reducing power looses. Some examples of designing fibre optic lines are introduced along with calculation for them.
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Measurement automation of simple electrical circuit
Gála, Michal ; Čala, Martin (referee) ; Havlíková, Marie (advisor)
Document describe simple electrical circuit from theory and subsequently complex double-port from practical measure. On measurement is using automated measuring system. Document describes the adjustable parameters of measuring devices used in automated measuring system, the reason why they were chosen and the practical implementation of the measurement system. Process control measurement is used on measurement application. Document concerns the choice of program, which is use of programmed measuring application, and also analyze various subtasks in specifically stages of application. Document presented the functionality of measuring applications with a consistent example of measurement. In conclusion of document is contain evaluation of the results that have been achieved during development.
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MES systems
Štrublíková, Iva ; Kantor, Tomáš (referee) ; Simeonov, Simeon (advisor)
The content of the diploma thesis is a description of the functions and features of the production control systems - MES (manufacturing execution systems), an analysis of these systems implemented in The Czech Republic, an elaboration of the system proposal of an intelligent production control system and retrieving new algorithms and functions according to which these systems can by formed. The MES systems analysis is performed by comparing implemented systems to the modules of production control systems conformably to MESA international. In the system suggestion there will be the intelligent component formed by automatic analysis of the effect of the order delay in production - automatic Gantt chart comparison of the plan versus reality. According to the adjusted system parameters it will separately make decisions about production scheduling. Searching new algorithms and functions will proceed in the reagions of artificial intelligence - genetic algorithms, holonic and multiagent systems, experts systems.
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Usage of Modern Methods for Increasing Reliability of Control System Implementations
Szurman, Karel ; Mičulka, Lukáš (referee) ; Kaštil, Jan (advisor)
At avionics control and critical systems is necessary guarantee a minimal level of fault tolerance and their high reliability. On the electronic components in these devices has an undesirable influence environment conditions and mainly cosmic ray. In this paper are described the most common failure types of semiconductor components and devices together with modern methods which can be increased the system fault tolerance and its overall reliability. There are introduced aspects of the avionic systems design due to finally certification and ways to evaluate its safety. This thesis describes design and implementation of the CAN bus control system for the FPGA platform which uses the CANAerospace application protocol. Created system design is improved by the TMR architecture. Fault tolerance of both system version is tested by the SEU framework which allows using the dynamic partial reconfiguration generate an SEU failures into running FPGA design.
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Design of Information System Part for Transport Company
Hovanová, Tatiana ; Dydowicz, Petr (referee) ; Neuwirth, Bernard (advisor)
This bachelor thesis deals with the design and implementation of part of the information system for a small transport company. This leads to increase the efficiency of the dispatcher work. In addition to managing transports, he also deals with administrative activities. Part of the thesis is an analysis of the internal and external environment of the company, a description of the selected processes through EPC and DFD diagrams, and finally is created data, functional and application model.
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Computer modeling of communication systems
Polášek, Jiří ; Vágner, Petr (referee) ; Raida, Zbyněk (advisor)
The thesis will focus on using the program Ansoft Designer, more precisely, its module System Design, during simulation involving communication systems. A few examples show the work with the program on simulating the communication system without coding, and then with coding according to the standard 802.11 (Wi-Fi). The thesis also deals with creating custom blocks communication schemes. Described the creation of blocks and then their test.
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Wireless Messaging System
Machatý, Jiří ; Rozman, Jiří (referee) ; Sekora, Jiří (advisor)
This project proposal describes the involvement of a wireless pager. It describes the possibility of realization, block diagrams of the receiver and transmitter controlprogram for their individual and flowcharts. In the theoretical design are taken intoaccount the ease of use, durability and endurance of the battery function. Was chosenfor the realization of a suitable wireless module, with a sufficient range. The goal is todesign a suitable wireless pager with sufficient range, durability and reasonable price that could be used within a department or a house to call for help.
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Design of an Information System Part
Koch, Michael ; Novák, Lukáš (referee) ; Neuwirth, Bernard (advisor)
Bachelor thesis is solving design and realization of new an individual part of a information system for already existing ZEFIS company which uses questionnaires to find out information about the shortcomings of information systems in companies.. The proposed change focuses primarily on 2 mains problems. The first is the inability to search for answers from questionnaires according to different answers. The second concerns the creation of a module which, on the basis of a metalanguage, the shortcomings of the company will be described, could evaluate on the basis of these rules whether these shortcomings occur in the company or not. The work includes an analysis of the existing system - the method of data storage, data models, etc. and the subsequent processing of the proposed changes.
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Lift unit for paste container
Mimochodek, Martin ; Svoboda, Pavel (referee) ; Dvořáček, Jiří (advisor)
The first part deals with the sorts and a separation of the fillers which are used in the food-processing industry. The second part more deeply describes various construction variants of the lift unit rotary piston filler, especially their properties, sort of the driving mechanism and an used components. Final system design is created in Autodesk Inventor 10.
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