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Power Efficient Smart Home IoT Network and Sensors
Chmelařová, Gabriela ; Letavay, Viliam (referee) ; Pluskal, Jan (advisor)
This thesis deals with finding a suitable solution for the construction of energy saving IoT sensors for home network. The solution deals with design and construction of devices operated on batteries in order to ensure their long-term service. The text includes an overview of technologies enabling implementation of power efficient sensors. Furthermore, the thesis describes the design and construction of energy-saving devices and topologies. The last part deals with sensor optimization for energy saving, overview of measured values and comparison of achieved results.
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RGB photo light
Macek, Jan ; Fiedler, Petr (referee) ; Baštán, Ondřej (advisor)
The bachelor thesis is focused on the proposal of effect light forusage in photo studio usage. The analysis of the market is made in this thesis, then the requirements for device are defined and theoretical issue is acquainted. Further, this thesis pursues the proposal of particular components, design solution and software implementation for a selected ESP32 microcontroller. The conclusion of the thesis is devoted to testing and evaluation of the achieved results.
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IoT WiFi soil moisture and temperature sensor
Kostelanská, Alžbeta ; Zeman, Václav (referee) ; Škorpil, Vladislav (advisor)
Bachelor thesis addresses the subject of IoT WiFi soil moisture sensor and temperature sensor based on ESP32 platform. The primary focus of the design is on low power consumption of the device and secure communication. The theoretical part of the thesis describes selected types of sensors which can be used for the designed device. The ESP32 module and some of its features are also introduced. Lastly selected communication protocols which are suitable for IoT applications and can be used with WiFi peripheral are discussed. The practical part of the bachelor thesis deals with hardware design of the sensor device and implementation of this design. Low power consumption is implemented in hardware and in software solution. The focus is on independence of the device and secure communication and data protection. Lastly the concept of webserver used for storing and processing collected data on RaspberryPi platform and concept of sending the measured data to the end-user are introduced.
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Návrh automatizované vyhřívané pece pro testování FDM výtisků
Kodýtek, Jan
This bachelor thesis deals with the analysis, design, construction and optimization of a special furnace for heat treatment and testing of products manufactured by additive 3D printing technology. The first part of the thesis deals with a literature search of currently available industrial and DYI solutions. Based on the conducted research, a custom solution is proposed based on DIY (Do It Yourself) reflow oven projects, which are mainly used in the electronics sector for industrial soldering of components. The control of the furnace is implemented using ESP32 microcontroller and FreeRTOS operating system. All the necessary mechanical components were modelled in SolidWorks software and then manufactured either by 3D printing or conventional machining methods. The work also includes an oven control system that runs on the mentioned microcontroller, runing in access point mode and can therefore be remotely connected to it. The described control system also allows for the creation of custom predefined temperature profiles that can be reused. The proposed solution was subsequently tested with satisfactory results.
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System for Transmitting Diagnostic Data from the Car
Uhliar, Martin ; Vašíček, Zdeněk (referee) ; Goldmann, Tomáš (advisor)
This diploma thesis deals with the design and implementation at the software and hardware level of the device, which is used for communication and acquisition of diagnostic data from the car control unit. The acquired data can be stored on the device and also sent via LoRa technology and TheThingsNetwork to a database on a remote server. NB-IoT technology is used for data that needs to be obtained in real time. The recorded data is presented in the form of a mobile application, which displays the obtained data to the user and can notify him of a problem with the vehicle. The device communicates with the car via the CAN bus using the OBD2 protocol and is controlled by an ARM microcontroller.
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Design of a livestock and property monitoring system
Krček, Roman ; Najman, Jan (referee) ; Formánek, Martin (advisor)
The bachelor thesis deals with the issue of monitoring livestock and property in remote areas. Specifically in areas where the access to the electricity grid is difficult or where it is not possible to build infrastructure for camera systems such as cottages, remote farms, etc. The aim of the work is to create a small reliable camera, powered by a solar panel, whose images could be viewed by the user from an app on a phone or computer. The thesis includes an analysis of available solutions such as camera traps or cameras with 3G/4G connectivity. The second part of the thesis deals with the design of a custom solution that would better meet the needs of the author and the choice of individual camera components.
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Monitoring the living environment in the house
Dlugoš, Daniel ; Ježek, Michal (referee) ; Staněk, Kamil (advisor)
This work, tries to create a small, rechargeable and portable device that senses temperature, humidity, barometric pressure, dust particles, carbon dioxide and VOC concentration. The air quality monitor can reliably measure the physical quantities encountered in every indoor environment, evaluate them and display them to the user. The sensors, data storage module and OLED display are housed on a custom-made PCB board.
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Swimming pool water quality monitoring system
Čada, David ; Chalupa, Jan (referee) ; Krejčí, Petr (advisor)
The goal of my bachelor thesis is to design, create and test a system for sensing the quality of pool water, in conditions close to the real usage. The main purpose of the system is to evaluate acidity of pool water using pH probe, then to send data to the end user through a web application. Frequently measured acidity should lead to keep the optimal pool water quality (together with the user’s interventions). Thesis also includes research of commercial products used for pH measurement as well as different ways to measure water pH. The entire measuring system is realized on ESP32 platform and is powered by solar panel with battery as a buffer – system is standalone.
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PDU with Consumption Metering Function for Single-Board Computers
Ondráček, Roman ; Růžička, Richard (referee) ; Šimek, Václav (advisor)
The aim of this thesis is to design a power distribution unit for single-board computers that can switch its individual outputs and also measure electrical quantities (voltage, current and power) based on the Espressif ESP32 platform and to design a web interface for the management of these power distribution units. This solution will be mainly aimed for the use of power distribution units in the development process of embedded devices built on top of single board computers. The proposed solution consists of a power distribution unit and a management information system, the communication between the different parts is done using the MQTT protocol. The information system can be used to control the individual outputs of the power distribution unit, to view graphs of the measured quantities.
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Autonomous Smart Plant System
Všetečka, Radim ; Šimek, Václav (referee) ; Vašíček, Zdeněk (advisor)
The aim of this thesis was to design and implement a smart pot for plant growth support that can be controlled through the cloud. For this purpose, it was necessary to acquaint with the ESP32 platform, cloud communication, factors affecting the plants and available sensors usable to monitor these properties. Because of the control through the internet, part of this thesis is also dedicated to the implementation of a web application that emphasizes simplicity and includes presets for different plants that can be also created by the community.
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