National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
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.
Power-line data communication
Šádek, Michal ; Mlýnek, Petr (referee) ; Mišurec, Jiří (advisor)
This master's thesis describes a principle of the systems for data communication over powerline. The frequency we can divide to narrowband and broadband. Various modulatory techniques with their usage and access method technology according to norms are mentioned. Engineering constraints as are frequency subband and sources disturbance are mentioned. A conception laboratory net is designed, where are effected trial measurement in data communications for systems ModemTec, Homeplug AV a DS2. This demonstration of communication contains display communications spectrum of choice systems and their matching. To comparison is used synthetic created nets LISN (Line Impedance Stabilizing Network) in narrowband transmissions. Long - term metering of systems ModemTec is is effected in laboratory net VUT and in the working condition in Swiss extension companies Daetwyler Rubber where are produced robust rubbery production. System DS2 is measured in home network, where are supposes low disturbance and in industrial environment company Daetwyler Rubber. On the basis report information of phase quality recorder a powerline and measured rate of communication, it is evaluate an influence disturbance on a data transmission and response time. At the close are mentioned principles of usage this communication.
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.
Power-line data communication
Šádek, Michal ; Mlýnek, Petr (referee) ; Mišurec, Jiří (advisor)
This master's thesis describes a principle of the systems for data communication over powerline. The frequency we can divide to narrowband and broadband. Various modulatory techniques with their usage and access method technology according to norms are mentioned. Engineering constraints as are frequency subband and sources disturbance are mentioned. A conception laboratory net is designed, where are effected trial measurement in data communications for systems ModemTec, Homeplug AV a DS2. This demonstration of communication contains display communications spectrum of choice systems and their matching. To comparison is used synthetic created nets LISN (Line Impedance Stabilizing Network) in narrowband transmissions. Long - term metering of systems ModemTec is is effected in laboratory net VUT and in the working condition in Swiss extension companies Daetwyler Rubber where are produced robust rubbery production. System DS2 is measured in home network, where are supposes low disturbance and in industrial environment company Daetwyler Rubber. On the basis report information of phase quality recorder a powerline and measured rate of communication, it is evaluate an influence disturbance on a data transmission and response time. At the close are mentioned principles of usage this communication.

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