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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Duomenų perdavimas elektros tinklais / Power line communication

Stanius, Karolis 26 July 2012 (has links)
Duomenų perdavimas elektros tinklais. Magistro baigiamasis darbas elektronikos inžinerijos laipsniui. Vilniaus Gedimino technikos universitetas. Vilnius, 2012, 67 p., 38 iliustr., 15 lent., 27 bibl., 3 priedai. Darbo tikslas – sukurti ir ištirti duomenų perdavimo elektros tinklais sistemos modelį. Darbe išnagrinėti šiuolaikiniai duomenų perdavimo elektros tinklais standartai, ištirti šiuolaikiniai duomenų perdavimo elektros tinklais metodai, atskleisti pagrindiniai šiuolaikinių duomenų perdavimo elektros tinklais metodų trūkumai. Siekiant sumažinti šiuolaikinių sistemų trūkumus sudarytas duomenų perdavimo elektros tinklais sistemos modelis su dirbtiniu neuronų tinklu. Gautieji darbo rezultatai atitiko užduotyje iškeltus reikalavimus. / The goal of this work was to create and analize a power line comunication model. This work analizes up to date power line comunication standards, methods and the main disadvantages of these methods are discussed. To compensate these disadvantages a power line communication system model with an artificial neural network was proposed. The results of this work suits the task. The systems with the artificial neural network model gave positive results.
2

Úzkopásmová PLC komunikace se standardy G3-PLC, PRIME a IEEE-1901.2 / Narrowband PLC communication based on G3-PLC, PRIME and IEEE-1901.2 standards

Skrášek, Tomáš January 2015 (has links)
Diploma thesis is about narrowband PLC communication standards. The theoretical part describes details of all available OFDM standards including G3-PLC, PRIME, IEEE-1901.2 and G.hnem. The practical part deals with PRIME and G3-PLC standards. In this part is also compared OFDM technology with system of single carrier frequency in environment with real interferences. The last part describes developement of two firmwares for PLC modems Texas Instruments TMDSPLCKIT-V3, which allow UART communication and remote data collection. The thesis also includes Windows application developed to display and save collected data.

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