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Narrowband data transmission over the power lines
Valenta, Jaroslav ; Mišurec, Jiří (referee) ; Mlýnek, Petr (advisor)
This bachelor´s thesis is focused on narrowband data transmission over power lines. At first are described possibilities of narrowband data transmission over power lines, next the type of noises and then thesis deals with parameters of communication channel. In this thesis are described too modulation, error corection and data encryption for reliable communication. In the last part of thesis are realized practical measuring in laboratory workplace. The influence of data communication on primary function of power lines are tested. In the end are realized measuring of noise influence on data communication.
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Power quality measuring system
Valenta, Jaroslav ; Mrákava, Petr (referee) ; Mlýnek, Petr (advisor)
This thesis deals with the measurement of power quality. The evaluating quality parameters, data collection systems and transfer technologies will be discussed. The various type of cryptographic algorithms are also described. Cryptographic algorithms, which ensure to secure data communications from remote collection points of measurement, will be realized. These cryptographic algorithms will be realized in MATLAB and C/C++. The last part is focus on designed and implemented a simulation model to telemetry the power quality.
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