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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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Wireless weather station
Hrabovský, Michal ; Marcoň, Petr (referee) ; Szabó, Zoltán (advisor)
This bachelor thesis focuses on a plan of a wireless meteostation composed of internal and external unit. Meteostation is supplied by a battery and photovoltaic panel It measures temperature, humidity, pressure, precipitation, speed and direction of wind. Measured data are sent to the internet through wi-fi connection. Internal unit measures temperature and humidity. With the aid of wi-fi connection the internal unit loas data from the internet and then the data show up on display. Measured data can be shown on phone. At the beginning of theoretical part, meteorology will be analysed. Afterwards, this work describes physical principles and the method of measurement of physical quantities which are measured by the meteostation, Internet of Things and cloud services. The second part focuses on the description of meteostation plans. Then it describes hardware and software that was used in the mrtestation. Finally, it describes the schrmr of the device. Third part focuses on construction of the device, 3D printing of its parts.
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The design of an accurate rain gauge with the ability of real-time reading
Jílek, Jiří ; Mašek, Pavel (referee) ; Možný, Radek (advisor)
Rainfall estimation using point-to-point microwave links is a promising way to expand the rain gauge network in the future. However, this opportunistic measurement method is still in the research phase and faces several problems. This paper focuses on one of the problems of this research area, namely the insufficient number of existing rain gauges on the path of the microwave link for the correlation of measured data, by designing a portable rain gauge using data transmission to a remote server using narrowband internet of things (NB-IoT ) technology. To expand its capabilities, the device is also equipped with temperature sensors and a light level sensor. The device is designed with an emphasis on desirable low energy consumption, as it should be able to measure data even without the reach of the electrical network. The outcome of this work is the verification of the functionality of the device in a real environment and the evaluation of its suitability for the intended use case.
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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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Wireless weather station
Hrabovský, Michal ; Marcoň, Petr (referee) ; Szabó, Zoltán (advisor)
This bachelor thesis focuses on a plan of a wireless meteostation composed of internal and external unit. Meteostation is supplied by a battery and photovoltaic panel It measures temperature, humidity, pressure, precipitation, speed and direction of wind. Measured data are sent to the internet through wi-fi connection. Internal unit measures temperature and humidity. With the aid of wi-fi connection the internal unit loas data from the internet and then the data show up on display. Measured data can be shown on phone. At the beginning of theoretical part, meteorology will be analysed. Afterwards, this work describes physical principles and the method of measurement of physical quantities which are measured by the meteostation, Internet of Things and cloud services. The second part focuses on the description of meteostation plans. Then it describes hardware and software that was used in the mrtestation. Finally, it describes the schrmr of the device. Third part focuses on construction of the device, 3D printing of its parts.
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