National Repository of Grey Literature 63 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Prediction of future air quality
Roháček, Adam ; Sekora, Jiří (referee) ; Čmiel, Vratislav (advisor)
This thesis explores the prediction of future air quality as a critical aspect of environmental health and sustainable development. With the increasing concerns over air pollution and its detrimental effects on human health and the environment, there is a growing need for accurate forecasting techniques to anticipate and mitigate potential air quality issues. This thesis introduces the reader to the topic of air pollution, describes the usage of prediction algorithms and evaluates quality of the own algorithm.
Design of a compact system for measurement of the indoor environment
Jančík, Josef ; Klimeš, Lubomír (referee) ; Pech, Ondřej (advisor)
The diploma thesis deals with a design of a compact air quality measuring device. Theoretical part of the thesis introduces the reader with air quality measuring, measuring criteria and basic principles of measuring. Next part is dedicated to the design of the device – component selection, model creation and simulation of heat transfer between individual components. This parts also describes the connection between multiple devices and data collection. The following part presents practical testing of the device and the possibilities of its calibration. At the end of the thesis, the final device is evaluated in the terms of function and costliness.
Workplace environment monitoring platform
Lipták, Ivan ; Dvořák, Jan (referee) ; Musil, Petr (advisor)
This work focuses on the design and construction of a platform for measuring air quality in the workplace. The platform will collect data on air conditions and subsequently evaluate this data for further processing into a database or possibly alerting the user. The platform will utilize an ESP32 microcontroller, to which various sensors and a display for real-time data visualization will be connected. The design will emphasize on the highest accuracy, flexibility of the device, and its diverse applications in manufacturing halls, offices, or even homes.
Spatio-temporal distribution of atmospheric aerosol in urban and rural environment
Bendl, Jan
Air quality in Europe remains a significant environmental concern, affecting the health and quality of life of its population. While stationary network ambient air quality monitoring allows for the observation of main trends, it is not fully representative of personal exposure of citizens due to high spatio-temporal variability of atmospheric aerosol. Therefore, highly time-and- space resolved measurements with state-of-the-art instruments and methods are needed to observe the aerosol variability, dynamics, identify hot-spots, and pollution sources, which are necessary for successful targeted mitigation measures. This thesis addresses this gap focusing on the characterization of spatio-temporal distribution of atmospheric aerosol in inhabited environments. Novel mobile measurement systems were developed and employed to investigate diverse environments, including rural, urban and suburban area. Aerosol source-apportionment were conducted, and the toxicological effects associated with these environments were also investigated. A novel mobile measurement system was developed for personal exposure measurements and pollution mapping in urban and rural environments. The system was used to measure air quality in the Munich subway, revealing high aerosol dynamics with significantly higher concentrations of...
Data concentrator for data acquisition and wireless modules
Palacký, Tomáš ; Pásek, Jan (referee) ; Fiedler, Petr (advisor)
This master’s thesis deals with design and construction of a system for repote measurement of air quality in buildings. The first section provides a selection and analysis of used hardware and software components: minicomputer Raspberry Pi, STM32F401 microcontroller, communication module XBee-Pro, CO2 sensor and also communication interfaces IC and USART. The next section includes a design of electrical wiring, circuit board, configuration of the wireless modules and a software implementation for microcontroller and the concentrator.
Design of the methodology of measurement for evaluation of filtration efficiency of portable air cleaners and purifiers
Dvořáková, Michaela ; Bělka, Miloslav (referee) ; Lízal, František (advisor)
This work focuses on the research and comparison of several types of air purifiers. It clarifies the principles of filtration and describes the basic types of air purifiers. Part of this work is designed methodology of measurement for comparison of filtration efficiency and filtration rate. The experimental part of this work contains the measurement and comparison made for two types of air purifiers. Selected purifiers were De’Longhi AC230 with mechanical filters and ionic air purifier Ionic-CARE Triton X6. Within the framework of this work an experimental set-up was constructed in the home environment for the simulation of real conditions for the function of the air purifiers. The measurement results provide information about aerosol number concentration process during the measurements and evaluation of filtration efficiency of air purifiers.
Low-cost sensors for measurement of particulate matter
Dvořáková, Michaela ; Pokorný, Jan (referee) ; Lízal, František (advisor)
This work focuses on the research and comparison of several types of low-cost sensors for measurement of particulate matter. It clarifies the principles of aerosol particles measurement and focuses on the reasons of using low-cost sensors. It provides basic information about the impact of aerosols on human health. The experimental part of this work compares quality of the obtained results considering the price of the respective devices.
Weather station with air quality measurement
Lacina, Jaroslav ; Hájek, Jaroslav (referee) ; Lattenberg, Ivo (advisor)
This bachelor thesis deals with the design and implementation of the wireless weather station with air quality measurement. At the beginning of the theoretical part, meteorology will be analysed. Afterwards, this work describes physical principles and the method of measurement of physical quantities that are measured by the meteostation. Next is the folloving technology described - Internet of things. The weather station is powered by a single battery and operates autonomously without any user intervention. It measures temperature, humidity, atmospheric pressure, CO2 and tVOC. Measured data are saved in to the cloud service ThingSpeak using a GSM signal. Further the work focuses on creation of web applications. The well organized graphs are created from the measured values.
Air Quality Analysis in Office and Residential Areas
Tisovčík, Peter ; Korček, Pavol (referee) ; Kořenek, Jan (advisor)
The goal of the thesis was to study the indoor air quality measurement focusing on the concentration of carbon dioxide. Within the theoretical part, data mining including basic classification methods and approaches to dimensionality reduction was introduced. In addition, the principles of the developed system within IoTCloud project and available possibilities for measurement of necessary quantities were studied. In the practical part, the suitable sensors for given rooms were selected and long-term measurement was performed. Measured data was used to create the system for window opening detection and for the design of appropriate way of air change regulation in a room. The aim of regulation was to improve air quality using natural ventilation.
The technique of smart school buildings
Drábková, Helena ; Mauder, Tomáš (referee) ; Štětina, Josef (advisor)
This bachelor‘s thesis briefly discusses about regulation of energy consumption in buildings with specialization on building intelligent systems and its application at schools. It briefly characterizes regulation of heating, ventilation, air-conditioning and lighting and its integration into centralized control component. Thesis discusses about systems from a few producers, short description of economic operation, a vision of these systems into the future and examples of implemented installations.

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