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Draft measures against floods in the basin of a small watercourse Mlýnka
Řeháková, Adéla ; Jaroš,, Lubomí (referee) ; Starý, Miloš (advisor)
This thesis is concerned with protection against flooding in the basin of a small watercourse Mlýnka. The aim is to get information about runoff in the watershed and the proposal dry reservoir as flood measure. The first part of thesis deals with the survey watershed, getting materials, schematisation watershed, constructing rainfall-runoff process. In the second part is designed dry reservoir. Schematisation has been made using ArcGIS, rainfall-runoff process was done in software HYDROG and drawings have been processed by AutoCAD.
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Passive and active safety features in passenger cars
Jahoda, Patrik ; Kučera, Pavel (referee) ; Píštěk, Václav (advisor)
This bachelor thesis deals with safety elements of all kinds in personal vehicles and their general introduction. This elements are divided and broadened and roughly described. My work contains short summary of history of safety elements. Conclusion contains evaluation of individual elements. Video with crash test is inserted in this graduate work.
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Meteorology and measurement techniques
Vaňousová, Jana ; Hammer, Jaromír (referee) ; Jebáček, Ivo (advisor)
This thesis deals with the branch of science called Meteorology. It is connected with measurement techniques, too. Basic terms are defined, structure and classification of atmosphere there are briefly described and furthermore basic meteorologic components are analysed. Finally there is an evaluation of meteorologic data measured unprofessional meteorologic station.
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Meteorological station system
Čada, Jan ; Balík, Miroslav (referee) ; Lattenberg, Ivo (advisor)
This bachelor thesis deals with the design and implementation of a online meteorological station system, which consists of individual weather stations that communicate via the Internet with the server. The first part of the thesis discusses the principles of measuring major meteorological variables and deals with the selection of suitable sensors for measuring temperature, atmospheric pressure, humidity, wind speed and rainfall. In the practical part, one of the weather stations based on Raspberry Pi Zero microcomputer is designed and realized. As a complement to the measured data, the station includes a camera that captures the view from the site where the meteostation is installed. 3D printing is used to realize most of the mechanical parts, it has the advantage of speed, accuracy and easy reproducibility. For the measurement of temperature, pressure and humidity, a combined sensor BME280 from Bosch is used, which is placed in a small Stevenson screen. The wind speed is measured by a cup anemometer whose rotation is sensed by an integrated Hall sensor. The output pulses are then counted using the PCF8583 circuit, which has an I2C interface for reading the values with a Raspberry Pi microcomputer. Special attention is paid to the construction of a custom calibratable tipping bucket rain gauge with a resolution of 0,5 mm, whose mechanical motion is also sensed by a Hall sensor as in the anemometer. The reading of the data from sensors and sending it to the server is handled by a Python script. For storing and presenting data to users, a custom server solution based on LAMP webserver is implemented, its source codes are written in PHP, HTML, JavaScript and CSS. In addition to the web interface, which displays the data in graphs, the measured data can be also presented to the user via an application for mobile devices based on Android. The application was developed in C# using the Xamarin framework in the Microsoft Visual Studio development environment. Among other things, it implements a widget for quick access to the measured values directly from the home screen. In the final part of the thesis, interesting findings obtained by observing the measured values are mentioned.
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Wireless weather station
Filka, Tomáš ; Novotný, Radovan (referee) ; Levek, Vladimír (advisor)
This diploma thesis deals with a draft of wireless weather station, whose task is to measure basic values inside and outside the home. Measured variables are for example temperature, atmospheric pressure, relative humidity, wind speed and direction or concentration of carbon dioxide (CO2). These data will be transmitted to a web server for later processing. Possible technical solutions are described and the outcome is a designed printed circuit boards, which has been assembled and tested. Resulting system was tested in trial operation.
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Flood control measures in the Nectava River basin
Boháč, Ondřej ; Menšík, Pavel (referee) ; Starý, Miloš (advisor)
This bachelor’s thesis deals with the flood control in the basin Nectavy. The aim is to assess the need enhance flood control in the basin. The work is divided into two parts, the first part deals with own description of the basin and the second part with data processing in programs ArcGIS and Hydrog. The description of the basin consists of a personal acquaintance with the basin and its surroundings, interview with residents of communities located along the river and description of geographic factors in the basin. After obtaining all necessary informations will be basin schemed in the program ArcGIS where it will be divided into smaller sub-basins which will require for further work. The output from the previous step is used for processing in the program Hydrog, to work in this program is also needed to calculate the replacement intensity of rains. Simulation in the program Hydrog are obtained critical period of rains and set N-year flows. In the end the obtained values of peak flows are compared with the actual flows and identifying critical points are assessed for possible flow and flood.
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IoT system for gardening
Mlčák, Petr ; Kiac, Martin (referee) ; Caha, Tomáš (advisor)
The thesis deals with the design and creation of a weather station suitable for gardeners. The created device is able to measure temperature, pressure, humidity, amount of precipitation, wind speed and direction, UV index and also temperature and soil moisture at several depths. The weather station is powered by a battery with auxiliary charging from a photovoltaic panel. The thesis is divided into several parts. The theoretical part describes the individual physical principles of measurement of the considered physical quantities. Subsequently, a comparison of available sensors is made and then a final selection is made. The third part deals with the design and implementation of the hardware circuitry including the creation of the PCB. In this section, the holders of each sensor are also designed for printing on a 3D printer, which are then printed. The fourth section deals with software design issues, which is described in more detail. Finally, the whole weather station is assembled, wired and the functionality of all components is verified by sending the measured data to Thingspeak.
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Realistic Model of the Sky
Kussior, Zdeněk ; Bílek, Václav (referee) ; Drahanský, Martin (advisor)
The paper describes a theoretical base and realization of realistic volumetric clouds visualization in an environment of real-time simulator. The first part is concerned with a meteorological background of this problem. I show international classification of ten basic cloud types including a short description and cases of occurence. The following part is concerned with an interaction between cloudiness and simulation core, which is based on the fact, that each cloud acts as a mechanical or an electromagnetic obstacle. This should be considered on some way in simulation. The next part describes technologies and practical implementations of visualization and evaluates their characteristics. Finally, the last chapter describes my implementation and tries to outline project advancement.
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Precipitation Forecast from Weather Radar
Tábi, Matej ; Milička, Martin (referee) ; Burget, Radek (advisor)
The aim of this bachelor thesis is a web application, which solves a short-time precipitation forecast for Czech Republic. The forecast is created for the next one hour and consists of four radar frames with a 15 minutes distance between them. The task is solved in three main steps. In the first step, the actual information from CHMI webpages is obtained. In the second step, the recieved data is processed - precipitation fields are identified and in the last step, movement vectors of these precipitation fields are calculated. The result of the thesis is a fully working web application. The forecast success rate is at the level from 30 to 60%.
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