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PLC system for Smart Metering
Bijotová, Kateřina ; Sláčik, Ján (referee) ; Mlýnek, Petr (advisor)
This thesis deals with PLC communication, presents pros and cons of this technology. The thesis describes several basic standards of the narrowband communication and broadband HomePlug AV2 standard. It groups the technology according to frequency band. Also, it brings summary of commercial products and development kits which are using PLC technology. The thesis contains the description of network testing to RFC 2544 recommendation and its application onto narrowband Linksys PLEK500 modems using NetBlazer tester which took place in laboratory of Brno University of Technology’s Department of Telecommunications. The same PLC modems are used in a second series of experimental measurements in home environment. This thesis also deals with comparison of narrowband PLC standards PRIME and G3 whilst exposed to different transmission conditions as defined by pre-established measurement scenarios. Said comparison was attained by measurements using Atmel’s multi-carrier PLC kit SAM4CP16C-EK. In the closing section of the thesis the results obtained by said measurements are consulted with conclusions provided by contemporary PLC-oriented publications.
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Influence of physical parameters and age of power lines on PCL/BPL performance and reliability
Janás, Jan ; Mlýnek, Petr (referee) ; Benešl, Lukáš (advisor)
With the increasing demands on data transmission, other ways are being sought than standard data transmission via conventional data cables. One of these ways is communication over power lines - PLC or BPL technology. This method of communication is widely used in households, energy, industry and other fields where it is used for data collection, communication, or control of various devices. Before considering the use of BPL technology, it is first necessary to evaluate the considered power line to see if it is suitable and technically competent for this purpose.
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Intelligent system for remote data collection with PLC
Benešl, Lukáš ; Sláčik, Ján (referee) ; Mlýnek, Petr (advisor)
Bachelor thesis deals with PowerLine Communication (PLC), analyzes its advantages and disadvantages of this technology. Shows the frequency division according to the frequency range in which they work. The work includes a methodology of PLC communications testing according to Request For Comments (RFC) 1242 and RFC 2544 standards. Tests of the individual modems were measured in the household on a real network. All modems measured the same topology, and the results were appropriately processed in the form of well-arranged tables and charts. In conclusion, the individual conclusions from the measurements are always discussed. For the measurement of narrowband PLCs with multiple carriers on PRIME and G3 standards, the SAM4CP16C-EK development kit from Atmel was used. Narrowband modems, with single carrier, are represented by the PLC MT49R model manufactured by ModemTec. For broadband modems, the HomePlug AV2 standard was selected in comparison with HomePlug AV. Within the HomePlug AV2, the I2SE PLC Stamp 1200 micro EVK and Linksys PLEK500 development kit were used. For the lower standard of HomePlug AV, PLC was used by COMFAST.
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Multimedia transmissions in IP networks
Kejík, Tomáš ; Slavíček, Karel (referee) ; Grenar, David (advisor)
The topic of the master’s thesis is "Multimedia transmissions in IP networks". The goal of the thesis was to perform a theoretical analysis of multimedia transmissions in IP networks and to create a basic test set for generating and measuring network traffic. The theoretical part is devoted to the basic types of IP video transmission and the methods of transmitting in IP networks. Furthermore, protocols for controlling or distributing multimedia content are described. The practical part deals with creating the script written in the Bash language. The test script contains a set of functions that are created by different network tools. A Bash installation script has been created to install all the necessary tools automatically and conveniently. In order to generate multimedia and data traffic, the vlc and nc commands were used. The multimedia data editing was handled by the ffmpeg tool and to graphically display the measured data the smag and youplot tools were used. Additionally, the efficiency of the selected compression formats depending on the playback speed of the Raspberry Pi 4B single-board computer was also compared.
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Influence of physical parameters and age of power lines on PCL/BPL performance and reliability
Janás, Jan ; Mlýnek, Petr (referee) ; Benešl, Lukáš (advisor)
With the increasing demands on data transmission, other ways are being sought than standard data transmission via conventional data cables. One of these ways is communication over power lines - PLC or BPL technology. This method of communication is widely used in households, energy, industry and other fields where it is used for data collection, communication, or control of various devices. Before considering the use of BPL technology, it is first necessary to evaluate the considered power line to see if it is suitable and technically competent for this purpose.
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Intelligent system for remote data collection with PLC
Benešl, Lukáš ; Sláčik, Ján (referee) ; Mlýnek, Petr (advisor)
Bachelor thesis deals with PowerLine Communication (PLC), analyzes its advantages and disadvantages of this technology. Shows the frequency division according to the frequency range in which they work. The work includes a methodology of PLC communications testing according to Request For Comments (RFC) 1242 and RFC 2544 standards. Tests of the individual modems were measured in the household on a real network. All modems measured the same topology, and the results were appropriately processed in the form of well-arranged tables and charts. In conclusion, the individual conclusions from the measurements are always discussed. For the measurement of narrowband PLCs with multiple carriers on PRIME and G3 standards, the SAM4CP16C-EK development kit from Atmel was used. Narrowband modems, with single carrier, are represented by the PLC MT49R model manufactured by ModemTec. For broadband modems, the HomePlug AV2 standard was selected in comparison with HomePlug AV. Within the HomePlug AV2, the I2SE PLC Stamp 1200 micro EVK and Linksys PLEK500 development kit were used. For the lower standard of HomePlug AV, PLC was used by COMFAST.
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PLC system for Smart Metering
Bijotová, Kateřina ; Sláčik, Ján (referee) ; Mlýnek, Petr (advisor)
This thesis deals with PLC communication, presents pros and cons of this technology. The thesis describes several basic standards of the narrowband communication and broadband HomePlug AV2 standard. It groups the technology according to frequency band. Also, it brings summary of commercial products and development kits which are using PLC technology. The thesis contains the description of network testing to RFC 2544 recommendation and its application onto narrowband Linksys PLEK500 modems using NetBlazer tester which took place in laboratory of Brno University of Technology’s Department of Telecommunications. The same PLC modems are used in a second series of experimental measurements in home environment. This thesis also deals with comparison of narrowband PLC standards PRIME and G3 whilst exposed to different transmission conditions as defined by pre-established measurement scenarios. Said comparison was attained by measurements using Atmel’s multi-carrier PLC kit SAM4CP16C-EK. In the closing section of the thesis the results obtained by said measurements are consulted with conclusions provided by contemporary PLC-oriented publications.
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Cloud Computing for data storages using mobile devices
Leština, Petr ; Vaněk, Jiří (advisor) ; Zdeněk, Zdeněk (referee)
This thesis deals with the use of Cloud Computing for data storages using mobile devices. It includes theoretical and practical aspects of the problem. The first section describes the theoretical principles of Cloud Computing.
Another practical part deals with the comparison of selected cloud-based applications for non-commercial use and compatible with the operating system Android. Tests are executed using a specific mobile device. Finally, follow the recommendations for users.
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