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Automated area measurement of precipitation intensity via a network of microwave links
Bubniak, Milan ; Pospíšil, Ondřej (referee) ; Musil, Petr (advisor)
Point-to-point microwave links can be utilized as a large sensor network to measure rainfall. This work deals with the application of this procedure in practice. The first part of the thesis deals with atmospheric precipitation in general and standard methods of their measurement; and the propagation of the microwave signal and various causes of its attenuation, focusing on the attenuation caused by rain and the recommendation ITU-R P.838. This is followed by a state of the art summarization of the measurement of rainfall by microwave links. In the second part of the work, a manual procedure for calculating rainfall from microwave link data is performed, taking wet antenna attenuation into account. Then the creation of a support tool in the C# language is being described, which supply the data to the functions of the RAINLINK rainfall calculation library. Several rainfall calculations that are validated by physical rain gauges are performed. Furthermore, the own Telcorain application for rainfall calculation is created in the Python language, based on the pycomlink library. It has a graphical user interface created in PyQt. Several rainfall calculations validated by rain gauges are performed again, and the results are compared with the RAINLINK library.
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Application For An Early Detection Of Transmission Parameters Degradation Of Point-To-Point Microwave Links
Bubniak, Milan
Radio equipment of microwave links operating in an outdoor environment under the influence of weather conditions is at risk of a link failure or device defect occurrence, as well as their indoor units. This paper aims to present the creation of a network monitoring application capable of timely detection of potential failures, based on analyzing trends in monitored device parameters. The architecture is being described, as well as a graphical user interface. Several failure detection methods are covered. Conslusion summarizes the development results and outlines a future of the application.
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Application for early detection of transmission parameters degradation of microwave units
Bubniak, Milan ; Benedikt, Jan (referee) ; Musil, Petr (advisor)
Radio equipment of microwave links operating in an outdoor environment under the influence of weather conditions is at risk of a link failure or device defect occurrence, as well as their indoor units. This bachelor thesis aims to present the creation of a~network monitoring application capable of timely detection of potential failures, based on analyzing trends in monitored device parameters. The theory section deals with basic characteristics of microwave links and the structure of Simple Network Management Protocol. The practical section describes an application design, including core architecture, as well as a graphical user interface. Several failure detection methods are designed and described. In the next section, practice monitoring results are presended. Furthermore, network traffic and data storage requirements are measured. The conclusion summarizes the results of the application development and outlines it's future with new possible features.
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