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Modeling and simulation of PLC in Network Simulator-3 for Smart Metering
Petrůj, Jakub ; Sláčik, Ján (referee) ; Mlýnek, Petr (advisor)
The diploma thesis deals with analysis and modeling of power line communication using NS-3. The introduction part summarizes basic information about PLC technology, distribution grids, and broadband standards. This is followed by the analysis of the transmission line and modulation method. Furthermore, the simulation tool and possibilities of its extension are described. The influence of different cross-section and type of line on channel capacity is examined in the practical part of this paper. The influence of repeaters on bitrate is examined as well. The medium-voltage line was implemented and further scenarios dealing with bitrate or optimal level of noise. The focus of the last part is to find the repeaters on the path and to determine the capacity and bitrate on the path of the large topology.
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High Data Rate Narrowband PLC Communication based on OFDM
Csiba, Patrik ; Herencsár, Norbert (referee) ; Mlýnek, Petr (advisor)
This bachelor project is about narrowband PLC communication. In this project is described history, principle of narrowband communication and description of four available narrowband standards (PRIME, G3-PLC, G.hnem, IEEE P1901.2) with their comparisons. In the next part are described the experimental measurements, that are performed in home environment with use of the TMDSPLCKIT modems from the Texas Instruments company, MT39-L1-ver.R modems from the ModemTec company and EVALKITST7580-1 modems from the STMicroelectronics company.
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Computer modelling of data transfer over power lines
Křivka, Petr ; Mlýnek, Petr (referee) ; Mišurec, Jiří (advisor)
The master‘s thesis is focused on data transfer over power lines. The influence of connected devices on data signal is studied. In this thesis, you can find the descriptions of PLC technology characteristics, sources of signal interruption and, mainly, the method of modelling the PLC channels as a multipath signal propagation environment is thoroughly discussed. There are models of PLC channels using this method projected in Simulink. The analysis of the influence of connected devices to bit error rate of a signal is processed. The devices are modelled by connected impedance.
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Smart modul integrated in power plug
Rusz, Martin ; Musil, Petr (referee) ; Mlýnek, Petr (advisor)
The aim of this work is focus on Powerline Communication technology and select a suitable type of broadband integrated circuit for the integration of a broadband communication module into an electrical installation box. In the introduction of this work, the Powerline Communication technology, the principle of communication, individual types of technology, factors influencing the quality of transmission, current possibilities and setting goals necessary for the design of the module are analyzed in detail. The result is a miniaturized functional prototype of a fully integrated broadband PLC modem in a wiring box.
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Narrowband PLC communication for Smart Metering
Kubů, Jiří ; Blažek, Petr (referee) ; Mlýnek, Petr (advisor)
This bachelor project is about narrowband PLC communications. The work describes the basic principle, division of PLC communication, history, technology, utilized communication standards and interference affecting the data communication technology. In this work we also performed experimental measurements in real environments with modems from Texas Instruments C2000 and C2000 TMDSPLCKITV4 PLC PLC TMDSPLCKIT-V3. The results of the measurements are real transmission rate. Moreover application was created for remote data collection along with PLC modems C2000 PLC TMDSPLCKIT-V3, the aime was to edit PLC modem firmware and create applications for receiving data from the terminal.
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Modelling of Power Line Communication for data transmission
Kadlček, Václav ; Mišurec, Jiří (referee) ; Mlýnek, Petr (advisor)
Thesis deals with problems PLC (Power Line Communication) communication. It is aimed at drawing up a suitable model for testing power network PLC communication. The reader is aware of at the beginning of work with the basic principles of PLC systems, distribution and use in communication networks. Another part of the work deals with different types of interference, which occur in power networks and ways to defend against such interference. For example, an appropriate choice of modulation and coding relevant. As a source of interference in the proposed model is used AWGN channel (Additive White Gaussian Noise). Conclusion of work is dedicated to design and build a model for PLC communication. There are three models designed with different OFDM technology. Models therefore vary between different levels of key mapping in OFDM (QPSK, 16-QAM, 64-QAM). It made a detailed description of a set of blocks that were used to build models. The behavior and functionality of the proposed models for broadband PLC communication was verified in the simulation program Matlab Simulink. Finally, it is shown the comparison and evaluation of results of each modulation.
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Measuring unit of electric power quality
Teplan, Miroslav ; Mrákava, Petr (referee) ; Mlýnek, Petr (advisor)
This thesis describes the parameters of electrical energy with a focus on low voltage characteristics and their measurement with respect to the parameters required by standards. In addition, one chapter deals with monitoring of the quality electric energy. Measurement organizations, calculation of power quality and the data collection for its calculation is referred here. For the illustration, the example of a distributed monitoring system from practice is described. The second part deals with the design and implementation of a module for measuring power quality , namely by measuring the voltage characteristics. It describes the selection of the chosen solution, hardware part and firmware for the MCU. To display the measured data, application was created by the Java programming language. The application allows the visualization of the voltage measured Low voltage grid with single phase voltage RMS value 230.
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Computer support for data distribution design - design laboratory
Benešová, Lucie ; Mlýnek, Petr (referee) ; Mišurec, Jiří (advisor)
This thesis is concerned with data wiring infractructure. In the theoretical part the basic technology of the LAN networks is described as well as its parts, such as HUB and switch. Various types of transfer paths used in data wiring are briefly mentioned. They included coaxial cable, which were then replaced by shielded twisted pair and in future the fibre optics cables will be used instead. The shielded twisted pair operates on structured cabelling, which is guided by central principles in designing, which then can guarantee 15 years of good service. The most used cables 5e and 6 are described. The next chapter describes the endings of cables and connectors as well as the principles of patch pannels and patch cables. The following parts focus on the fibre optics networks, because they are the networks of the future. The types of fibre optics cables are described together with networks standards, the minimal fibre radius and innovations such as WDM or micropipes. There is also a resume of the ČSN norms, which are important for this thesis, concerning issues of the ways how to lay cables, placing of the communications etc. In the practical part, the various softwares for designing data wiring infractructure are studied and compared. As the most convinient for student proposals the AutoCAD Electrical 2011 has been chosen. This design software is studied from the point of view of its user interface and basic rules of behaviour. The functions of the menus and pripary settings are described. In the last part of the thesis the lesson is provided. The lesson should give students basic information and opportunity to design a basic data wiring infrastructure for a building.
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Optimization of data communication over high-voltage lines
Minárik, Peter ; Krajsa, Ondřej (referee) ; Mlýnek, Petr (advisor)
The thesis deals with analysis of the PLC (Power Line Communication) system for data communications through powerlines. In the introduction describes the technology of data transmission through the energy network and is divided into categories corresponding with the explanation of the various specifications and features. Different types of coding, affecting the transmitted signal interference and modulation techniques used in a PLC are also described. The practical part is made up of telecommunications network model with transmission channel realized as additive white noise. The model can setup different types of modulation and coding in relate with the signal to noise ratio and bit error rates. The individual blocks settings are described in detail. The model was simulated. The results of simulation are displayed and evaluated at the end of work.
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