|
|
Wide area tracking system based on LoRa devices
Holík, David ; Arm, Jakub
The work deals with wireless communication using LoRa (Long Range) technology categorized as LPWAN (Low Power Wide Area Network). The technoloy enables wireless data transmission over long distances more than 5 kilometers in urban or rural areas. The technology is used as the communication between ESP32-based devices providing their GPS data and time synchronization. The system also consists Raspberry Pi which provides the central LoRa station for near area. The communication between central and peripheral devices was established using open-source libraries. The central device might need to receive packets from surrounding devices concurrently, whichi is not possible using the designed device, thus a protocol needs to be established as discussed. Moreover, the communication with the public TTN network has been tested. Regarding the communication testing, test scenarios were designed.
|
|
|
Hardware Design of Mobile Probe for Validating 5G-IoT Technologies
Paluřík, Pavel ; Dvořák, Radim
The evolution of 5G-IoT systems (5G - Internet of Things) has had a significant impact on how modern IoT devices are viewed and has opened numerous new use-cases for such technologies. As the new technologies become widely available, more IoT-technology-driven devices are being adopted in many branches of the industry and more of the bussiness subjects opt for the new IoT-enabled devices over the standard devices. For some businesses, choosing the correct technology may proove challenging as their knowledge in the particular topic may be limited. In this paper we present the hardware design and initial test cases of a modular Mobile Probe for validating 5G-IoT technologies. The probe is intended to help bussinesses to make informed decisions for the particular use-case based on the autonomous measurements of various 5G-IoT technologies parameters. Due to it’s simplicity the probe could also serve as an educational platform for students. After the description of the hardware design, initial testing results for NB-IoT and LTE Cat-M technologies are presented and discussed in terms of the probe capabilities and compatibility with given technologies.
|
|
|
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.
|
|
| |
|
|
Smart Cover Control Module for Home Assistant
Juštik, Matúš ; Dolejška, Daniel (referee) ; Pluskal, Jan (advisor)
The aim of this work is the study and implementation of external blinds control for the Home Assistant of home automation platform. The main goal is to design and implement a module capable of controlling blinds that do not have feedback, using only up, down and stop commands. The designed module must at least comply with automation, such as shading and illumination of the interior according to the position of the sun with maximum use of the day light, adequate response of blinds to protect against possible weather conditions and other automations. The module will then be published to the appropriate channels to reach the Home Assistant users' community. This work brings a better and more efficient solution for controlling blinds within the Home Assistant.
|
|
|
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.
|
|
|
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.
|
|
|
Identifying Network Devices from Network Traffic
Kvasnica, Ondrej ; Homoliak, Ivan (referee) ; Očenášek, Pavel (advisor)
This thesis deals with the identification of devices from network traffic. The goal is to design and implement a system capable of identifying network devices. The system mainly focuses on the identification of IoT devices. The thesis contains a description of the information from which a device fingerprint can be created. Furthermore, possible existing methods for device identification are presented. Finally, a system is proposed that uses a convolutional neural network to create a fingerprint. Fingerprint is created from the bytes of flows coming from a device. Devices are then identified by comparing the generated fingerprints. The model is tested on a test set that contains the same devices as the training set. It is then evaluated on network data from completely different devices. Lastly, it is also evaluated in a scenario where the test set contains data from both known and unknown devices.
|
|
|
Visual Programming of IoT devices
Podvojský, Lukáš ; John, Petr (referee) ; Hynek, Jiří (advisor)
This thesis aims to provide end-users with a visual programming tool to simplify the process of creating programs for Internet of Things (IoT) devices. There are a lot of different types of IoT devices that use various communication protocols. The lack of standardization for these devices forces companies to create customized solutions. Users are then presented with a predefined functionality that can be only slightly altered. One of the solutions for this lack of ability for end users to customize device behaviour is to give them more freedom through the concept called visual programming. This thesis results in a new library implementing a visual programming language and a visual editor whose output is a serialized program form that can then be transformed into the language of the target devices. The resulting library is created using web technologies and can be integrated into existing solutions.
|
|
|
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.
|
guest ::
