|
|
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.
|
|
|
Checking the presence of a letter in the mailbox
Hůževka, Ondřej ; Burian, František (referee) ; Chromý, Adam (advisor)
This thesis contains analysis and development of solutions for checking the presence of a letter in the mailbox. In the theoretical part of the thesis there is an analysis of commercially available solutions on the Czech and foreign markets, followed by an analysis of methods and sensors suitable for letter detection in mailbox. On the basis of the theoretical part, the design concept of the solution and the physical construction of the prototype of the proposed system are described. The work also includes a description of the device's communication with the server and the development of the software. The last part of the text is devoted to the theoretical calculation of power consumption, estimation of the device battery life, testing of the device and suggestions for improvement.
|
|
|
Electronic air rifle range
Šrámek, Dan ; Rusnák, František (referee) ; Baštán, Ondřej (advisor)
The thesis deals with the design of an electronic air rifle range. It analyzes a part of the hardware that already exists, describes the design and creation of its missing part. This design has been created considering the features of the products available in the market. The nRF24L01 module is used for the communication between the target units and the control unit of the air rifle range. The microcontroller controlling each of the target units is ATMega328p, for the control unit ESP32-S3 has been selected. The development of firmware for both mentioned microcontrollers is also described in the paper. The whole developed firing range system is controlled by a touchscreen HMI from Nextion.
|
|
|
Dashboard for Smart Home Status Focused on Low Consumption Installations
Fišer, Tomáš ; Hynek, Jiří (referee) ; John, Petr (advisor)
In the rapidly evolving concept of IoT, or a network consisting of physical devices with electronic and software capabilities to interconnect and collaborate to perform autonomous actions without human intervention, dashboards are an important element for users, providing data visualizations and controls over data. This work deals with the creation of a dashboard that has as main goals low energy consumption compared to traditional solutions, simple control interface and clear data visualization. It tries to meet the parameter of low power consumption by using energy efficient computing hardware, ESP32 microcontroller and by using E-ink display panel which again has low power consumption. The resulting dashboard should be able to run on batteries for long periods of time without the need to replace or recharge the batteries.
|
|
|
Sensor for bars of mallet percussion instruments
Pribol, Sebastián ; Balík, Miroslav (referee) ; Jirásek, Ondřej (advisor)
This thesis addresses the issue of capturing melodic percussion instruments using dynamic sensors that can be attached to a musical instrument. It includes theoretical knowledge, analysis, and selection of appropriate sensing methods, and the actual implementation, which consists of testing, integration with MIDI, manufacturing of the device itself, and final calibration and adjustments for proper functionality. The device uses an ESP32-S3 Dev Kit N8R8 microcontroller, which was programmed in the Arduino IDE for proper operation. The device consists of twelve piezoelectric sensors that capture the dynamics of playing the musical instrument and send MIDI information to a DAW via a Bluetooth module.
|
|
|
Creating a programmable LED glow staff
Majer, Julián ; Chladil, Ladislav (referee) ; Bayer, Robert (advisor)
The thesis offers a solution on the topic of a programmable LED staff suitable for various uses. The device was primarily designed for the purpose of light shows. The thesis describes the selection of appropriate components and materials, then addresses the construction issues of a portable device and PCB design. The device's features allow battery operation and the rendering of more complex effects thanks to the use of an accelerometer. Part of the thesis included the design of software used for testing the device.
|
|
|
Design and developement of autonomous system for monitoring critical paramaters in food industry
Chovan, Hynek ; Formánek, Martin (referee) ; Krejčí, Petr (advisor)
his work focuses on automating the monitoring of temperature and other operational parameters in gastronomic establishments. The designed device allows real-time monitoring of temperature, humidity, and other parameters with remote access capability. It utilizes the ESP32 microcontroller, SHT40 and HX711 sensors, and TP4056 charging circuit with DW01A protection circuit. Data is transmitted to a Gateway device, which displays it through a web interface. Testing demonstrated sufficient communication range and long battery life. The device meets requirements for compactness, reliability, and efficiency. This project represents progress in IoT applications for ensuring food safety and efficiency in handling food in gastronomic establishments.
|
|
|
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.
|
|
|
Stereo ADC and DAC converter for audio
Koiš, Christopher ; Polák, Ladislav (referee) ; Kratochvíl, Tomáš (advisor)
This bachelor's thesis deals with the problem of designing a programmable digital sound processor with its input connected to a device, such as a personal computer or a mobile phone, and an output intended for headphones. One segment of this thesis handles digital filters, specifically FIR and IIR filters. The MATLAB environment was used to design the filters shown in this thesis. Furthermore, the buses SPI, I2C and I2S that are used on the device are described. The parameters of individual functional blocks are summarized, and the designed circuit schematic are displayed in this thesis. In the practical part of this thesis a prototype printed ciruit board was designed and its' electrical parameters were measured and processed. Finally, the last part of this thesis describes the inner workings of the program that the microcontroller executes.
|
|
|
ArtNET and DMX converter
Strouhal, David ; Schimmel, Jiří (referee) ; Krajsa, Ondřej (advisor)
Goals of this thesis is design and realization of Art-net to DMX512 converter. First, a description of the currently used protocols for controlling stage lighting was made. This was followed by a successful proof of concept of the solution and subsequent implementation of the converter including PCB design and programming of the ESP32 processor to convert the protocols.
|
guest ::
