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Effective management of domestic hot water heating using photovoltaics
Talajka, Martin ; Zachariáš, Michal (referee) ; Materna, Zdeněk (advisor)
This work solves the problem of efficient control of water heating using photovoltaic system. To solve the chosen problem, I designed an algorithm and implemented it in the form of integration into the Home Assistant system, which also serves as a central control device. And it provides the integration between the boiler and the PV system. Thanks to this integration, it is possible to automatically and comfortably heat water from the surplus energy of the photovoltaic system, or alternatively from batteries or the distribution network. At the same time, system status monitoring and remote device management are possible. For example, the user can monitor the temperature of the heated water, the status of the overall system, adjust the heating temperature or set the water heating for a specific time, using an app or a web interface. The results of the work show that the proposed system is easy to use and is able to efficiently manage the water heating using the PV system, thus saving energy and gas.
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System of Intelligent Flower Pots for Indoor Plants Growing
Kinc, Michael ; Mrázek, Vojtěch (referee) ; Šimek, Václav (advisor)
Nowadays, when technologies from the world of the Internet of Things are gaining popularity, new possibilities are opening up for the automation of common daily tasks with the help of smart devices. Such a device is also an intelligent flower pot, thanks to which the premature death of the plant can be prevented, as it may be able to warn the grower in time of deteriorating values measured from the soil or the surroundings of the monitored plant. The goal of this work is to create a system of intelligent flower pots for indoor plants growing, which can be controlled through an information system and a web application, in which the user has an overview of his flower pots, the state of the plant and the measured values.
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System for Support of Short-Term Car Rentals Based on Carsharing
Vrtal, Petr ; Bidlo, Michal (referee) ; Šimek, Václav (advisor)
The aim of this thesis is to create a system for the transformation of an ordinary passenger car into a vehicle capable of sharing in the form of short-term loans. Vehicle rentals are completely unattended, which was achieved by implementing service applications in the form of an administration and user tool. The administrative application was created using web technologies, primarily Next.js and React. The customer application was implemented with the goal of high portability, and therefore its development was directed to mobile platforms using the React Native framework and the Expo tool. The vehicle is equipped with its own designed IoT end device in the form of a printed circuit board, capable of permanent wireless connection to the network based on LTE-M technology and MQTT protocol. The purpose of this device is to provide current vehicle data obtained by reading communication on the CAN bus, connecting to a standard OBD-II diagnostic port. An important part of the work was the execution of a series of tests of all sub-aspects of the implemented architecture, focusing mainly on reliability, resulting functionality and user-friendliness. The resulting system was tested in real operation and represents a way of non-invasively transforming a regular passenger car into a car capable of sharing.
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Post-quantum Secure Communication in IoT
Goldshtein, Daniil ; Ricci, Sara (referee) ; Malina, Lukáš (advisor)
Tato práce se zaměřuje na současný stav post-kvantové kryptografie a její využitelnost v omezeném prostředí internetu věcí. V teoretické části stručně popisuje aktuálně známé typy post-kvantových algoritmů a analyzuje jejich nejlepší implementace, buď již doporučené, nebo té, které jsou nejbližší pro další standardizace. Zaměřuje se také na existující výzvy a omezení týkající se Internetu Věcí. Praktická část této práce je věnována srovnání více knihoven z hlediska jejich modularity, účinnosti zdrojů, podpory a výkonu při provozu se standardizovanými post-kvantovými algoritmy. Dále je věnována vývoji funkční implementace řešení poskytující ověření dat pomocí kvantově odolného digitálního podpisu a jejích šifrování. Výsledky všech testů jsou systemizovány v tabulkách. Závěr práce obsahuje závěrečnou analýzu a shrnutí výsledků, dosázených pomoci vyvíjené implementace.
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IoT LoRaWAN soil moisture and temperature sensor
Pánisz, Peter ; Zeman, Václav (referee) ; Škorpil, Vladislav (advisor)
The goal of this bachelor's thesis was to develop software and design a protective cover for a development board that measures soil moisture, air temperature, and humidity. The project addressed the connection to a low-power wireless network for Internet of Things devices, through which the measured data was transmitted. The received data needed to be processed and decoded through various applications, which also require configuration. The measurement results can be graphically visualized in the form of charts on a public website accessible via the internet. For the administrator, a private address with additional information is available. The thesis also describes concepts such as application containerization, the selection of a suitable low-power network, and solving issues related to a dynamic public IPv4 address.
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Extensible Rust Library for the Development of Embedded Sensor Applications on ESP32 Platform
Mikhailov, Kirill ; Tinka, Jan (referee) ; Šimek, Václav (advisor)
Tato práce představuje rozšiřitelnou knihovnu jazyka Rust určenou pro vestavěné senzorové aplikace na platformě ESP32, která řeší potřebu zjednodušeného vývoje reálných vestavěných systémů v prostředí jazyka Rust na této platformě. Významným přínosem této práce je vývoj uživatelsky přívětivého rozhraní pro správu senzorů. Toto rozhraní umožňuje jednoduchou instalaci, aktivaci a monitorování senzorů, což vyhovuje aplikacím, jako jsou inteligentní domy a automatizace, aniž by vyžadovalo hluboké technické znalosti periferií. Architektura knihovny je pečlivě navržena s ohledem na modularitu a rozšiřitelnost a dodržuje zásady bezpečnosti a efektivity Rustu. Projekt je doprovázen rozsáhlou dokumentací a je zveřejněn na platformě GitHub pod open-source licencí Apache, doplněn unit-testy a příklady použití. V závěru práce je zhodnocena funkčnost knihovny a její případná budoucí vylepšení, která ukazují její praktičnost pro vývojáře vestavných systémů.
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Data Concentrator of 3D Printer's Sensors and Devices
Vaculík, Samuel ; Rusnák, František (referee) ; Arm, Jakub (advisor)
The bachelor thesis consists of designing and implementing a system for collecting data related to 3D printing. The aim is to define the variables suitable for measurement, select sensors for the measurements and implement them on the printer. The next point is the design and implementation of data acquisition from the printing firmware Klipper for collecting print data. Then the task is to implement the software for processing data from the individual measurement sources, including data flow analysis in the system.
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Software solution for storing data from robotic 3D printing
Žalud, Štěpán ; Kroupa, Jiří (referee) ; Bražina, Jakub (advisor)
This thesis deals with the design of a software solution for storing data from robotic 3D printing. The assignment is based on problems observed in the Voxell company. The theoretical part presents the issue and puts it in context within modern industry. Additionally, it introduces tools used for creating such services at a basic level. This is followed by a system analysis leading to the design of the solution's architecture. The practical part then discusses the selection of the database, the creation of individual services, and the deployment of the application on the Docker platform. Finally, the work is evaluated and a possible future direction of development is outlined.
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Automated system for domestic chicken farming
Kejík, Pavel ; Šimek, Václav (referee) ; Mrázek, Vojtěch (advisor)
The aim of this thesis was to design and construct devices for automating chicken farming. The devices should be competitive in terms of both price and features compared to those available on the market. The described devices provide wireless connectivity, so they are considered IoT devices. An overview of available IoT protocols is provided in the thesis. Additionally, devices available on the market and their features, which are set as the minimum requirements for the design of the implemented devices, are mentioned. The practical implementation of these devices is divided into descriptions of the mechanical and electronic construction, as well as the software. Specific approaches to control are explained in detail. The devices were developed into fully functional prototypes. Prototype tests were conducted for several weeks in simulated conditions without the presence of chickens to avoid contamination.
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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.
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