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Design of smart sensor equipped with LoRa technology
Šigut, Štěpán ; Pokorný, Jiří (referee) ; Štůsek, Martin (advisor)
Over the past years few trends have become as profound in the technology industry as yearly increases in battery capacity, transistor density and price drops for computing power. These trends follow a steep curve and drive what has become known as IoT or Internet of Things. Ever increasing number of devices connected to the internet are putting high demands on wireless network technologies. During the last decade several new wireless technologies have emerged and are competing to become the next go-to technologies for applications such as smart cities, smart cars and smart factories. LoRaWAN is one relatively new competitor to the market and is the central topic of this thesis.
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Compact System for Autonomous Meter Reading
Podeszwa, David ; Mrázek, Vojtěch (referee) ; Vašíček, Zdeněk (advisor)
This work solves the problem of the insufficient range of WMBUS meters, which makes their reading still difficult. The developed implementation solves this problem by using a battery-powered device that extends this range by using a LoRaWAN network, where the data received from the meters is sent over this network for further processing. The created device is capable of receiving WMBUS frames and sending them for a minimum period of 9 years. The main benefit of this work is the implementation of such a device on the new STM32WL platform, which is unique due to its integration of a microprocessor and a Sub-GHz receiver inside one chip.
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Software defined radio for LoRaWAN technology
Pospíšil, Ondřej ; Pokorný, Jiří (referee) ; Fujdiak, Radek (advisor)
This master's thesis deals with the description of LPWAN technologies focused on LoRaWAN technology in the theoretical part. The next part deals with description and analyzing of LoRaWAN protocol. In theoretical part also security elements of the LoRaWAN protocol are discussed and LoRaWAN 1.0.2 and 1.1.x versions are compared. The thesis also deals with LoRaWAN tapping and its decryption, both on the physical layer and the MAC protocol layer LoRaWAN. The thesis shows how to use software-defined radio to listen to LoRaWAN communication. Lastly, a replay attack and fake message over the fake session are performed
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Electrification and Control System Integration into the mobile log saw
Pospíšil, Jakub ; Bradáč, Zdeněk (referee) ; Arm, Jakub (advisor)
The semestral thesis deals with electrical system design for mobile bandsaw mill electrification. Includes technical data and parameters of the machine its required properties and functions. Contains detail informations necessary for electrical installation and electrical control design. It provides data for printed circuit board manufacture. The reasons for the each eletrical component use are explained. All the design is made with regard to safety and easy to use. Last part is dedicated to the next software development.
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Localization module for IoT network
Eliáš, Martin ; Kufa, Jan (referee) ; Herceg, Erik (advisor)
This bachelor thesis deals with construction of portable GNSS locator for multiple uses. This locator will be sending measured data via LoRaWAN IoT network. The aim of this bachelor thesis is to create a device with low current consumption and with highest possible operating time on a battery. The device consists of environmental sensors.
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Field sensor network for microclimatological measurements
Juráň, Radovan ; Frýza, Tomáš (referee) ; Povalač, Aleš (advisor)
Tato práce je zaměřena na návrh terénní bezdrátové senzorové sítě pro mikroklimatologická měření, zejména výronů juvenilního oxidu uhličitho v oblasti hydrotermílního krasu, založené na LoRaWAN. V teoretické části práce je předložen přehled cílové oblasti, možností řešení měření, získávání a přenosu dat. Praktická část se pak věnuje kompletnímu návrhu celého systému, to znamená od měřicího zařízení přes koncentrátor a gateway až po backend odesílání dat do cloudového úložiště. Výsledky tohoto komplexního problému jsou prezentovány průběžně a přílohy obsahují detailnější a názornější ukázky.
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The Design of Stratospheric Probe and Flight Simulator
Lindtner, David ; Kopečný, Lukáš (referee) ; Gábrlík, Petr (advisor)
This bachelor thesis deals with the design of the stratospheric probe as a device for measuring the parameters of higher layers of the atmosphere. The influence of different parameters on the resulting flight profile is shown in the simulations. On the base of real meteorological probes flights the model of atmosphere is verified and is used to estimate the landing point of our probe. The work emphasizes the design of key probe components such as communication devices, battery sources and sensors. At the end of the thesis, the data from the real flight of our probe are displayed and evaluated.
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Design of suitable HW and SW components for remote data transmission
Pietrowicz, Daniel ; Marada, Tomáš (referee) ; Němec, Zdeněk (advisor)
This thesis is focused on the design of remote data transmission equipment, without access to mains power. The device will measure the voltage of the gas pipeline and send this information to the operator for processing. Analysis of today's technologies for long-distance transmission and based on the selected technology, the device will be designed. According to selected components, its power supply will be designed with the aim of long-term functionality and continuous operation.
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Virtualized web application for receiving data from sensors
Kharytonov, Oleh ; Fujdiak, Radek (referee) ; Pospíšil, Jan (advisor)
At the beginning of the theoretical part, the bachelor thesis focuses on LPWAN or Low-Power Wide-Area Network technology. Systems that are characterized by low power consumption and wide coverage. Their key features are discussed. Subsequently, attention is paid to the LoRaWAN\texttrademark\ standard,. Initially, LoRa\textsuperscript{\tiny\textregistered} modulation is discussed - the modulation techniques used and the advantages over competitors. The next step discusses LoRaWAN\texttrademark\, - architecture, types of end devices and security. Virtualization - uses in today's world, discusses types of virtualization and its benefits. The practical part introduces the commissioning of open-source LoRaWAN\texttrademark\, ChirpStack server, gateway, endpoint registration and activation. Attention is paid to an application programmed using Flask for device management and data reception. The principle of operation and commissioning of the virtualized web application is explained. Finally, the results and possible ways to improve the application are described.
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Recognition of security issues in LPWA type networks
Shestopalov, Artur ; Pospíšil, Jan (referee) ; Pospíšil, Ondřej (advisor)
The bachelor’s thesis deals with the issue of recognizing security incidents in LPWA (LowPower Wide Area) networks. Thesis contains information about the most used LPWA technologies, examines their security architecture and possible threats. Part of the work is a detailed description of LoRaWAN protocols, including architecture, possible attacks, distinguishing security architecture in the new and old versions. Work contains implementation of two security incident scenarios and their subsequent detection: jamming and gateway disconnection. As part of the detection, was created a web application that is able to detect real-time security incidents based on the average value of RSSI (Received Signal Strength Indicator) and the expected time of message transmission.
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