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Low-code / No-code rule based engine nad pozičními daty
Vychodilová, Natálie ; Bohačík, Antonín (oponent) ; Juráň, Radovan (vedoucí práce)
Tato práce se zabývá návrhem a implementací softwarového systému určeného k eliminaci programování pro vybrané procesní problémy. Navrhovaný systém umožňuje uživateli vytvářet a spravovat pravidla nad pozičními daty. Práce se věnuje návrhu databáze, návrhu serverové a klientské části aplikace a uživatelského rozhraní vytvořeného pomocí no-code / low-code implementace. Návrh systému určeného pro vykonávání pravidel nad pozičními daty vychází ze znalostí technologie UWB a RTLS systémů.
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Smart hydroponic system
Seč, Filip ; Juráň, Radovan (oponent) ; Benešl, Lukáš (vedoucí práce)
This bachelor thesis focuses on the implementation of a smart hydroponic system with the capability of remote control and monitoring via a web interface. The main objective of the work is to design and implement hardware and software components for this system. Within the scope of the work, it is important to familiarize oneself with the issues of hydroponics and explore various types of hydroponic systems and their usage. Focus will also be given to the analysis of the advantages and disadvantages of individual types of hydroponics. The next step involves getting acquainted with microcontrollers and sensors that will be used within the hydroponic system. Based on this, we will design a schematic connection and a printed circuit board (PCB) for the system. After designing the hardware, the implementation follows, along with bringing the de- signed modules to life. At this stage, it is necessary to program the individual modules so that they are able to communicate and process data. An important step is the design of communication with the web interface, which will enable data reading and system control. In this way, it will be possible to monitor the hydroponic system remotely. At the conclusion of the work, we verify the overall functionality of the system and compare it with existing commercial solutions available on the marke
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Secured transfer of digital messages
Horký, Matyáš ; Juráň, Radovan (oponent) ; Tomašov, Adrián (vedoucí práce)
The Master thesis examines alternative approaches to e-mail. While it is the most common and universal approach to communicate with nearly anyone online, be it a person or an organization, it suffers from both technical and practical insufficiencies like the lack of reliability and privacy. The thesis evaluates the e-mail ecosystem and the current state of cryptography. It proposes a new protocol and file format that could replace the e-mail nearly transparently. The protocol is built on mTLS and PKI; it defines specific messages that can be used to negotiate data transfer between clients and servers. The file format is a linearly parseable custom binary format structured in a header–length–data manner. The result is evaluated on new ideas and new drawbacks, along with general thoughts about e-mail’s place on today’s internet.
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Experimental Platform for Sensor Fusion Positioning Methods Evaluation
Juran, Radovan
Position and context awareness is becoming greater in importance as one of the key enablers of the Industry 4.0 concept, with impact on analysis and optimizing production processes, their direct control, increasing and ensuring the safety of personnel and technology, as well as enabling traceability of products. There are many approaches to achieve a real-time location system (RTLS) capable of providing positioning data, yet each approach usually has its limits given by the physical principles of technology which it is primarily based on; mostly a wireless signal transmission where the performance boundaries lay in non-line-of-sight (nLoS) scenarios. Current literature already presents various approaches capable of dealing with these shortcomings and presents various combinations of sensors based on different phenomena, the drawbacks of which are mutually compensated, known as sensor fusion. This work presents practical design of a compact platform, which utilizes Ultra-WideBand (UWB) as one of the predominant wireless technologies for wireless positioning with with IEEE 802.15.4z compliant radio integrated circuits in cooperation with a 9-axis absolute orientation sensor, expandable with add-on boards.
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Firmware měřicí stanice pro bezdrátový sběr dat přes LoRaWAN
Jánoš, Vít ; Možný, Radek (oponent) ; Juráň, Radovan (vedoucí práce)
Tato práce se zabývá vývojem software s mikrokontrolérem STM32WL55-JC1. Vývojový kit byl zvolen především kvůli jeho LPWAN možnostem. Výsledný prototyp komunikuje prostřednictvím protokolu LoRaWAN, na aplikační server odesílá přes veřejnou síť The Things Network měřená data, jimiž jsou koncentrace oxidu uhličitého, teplota a tok oxidu uhličitého z půdy. Data jsou také společně s časovou značkou zálohována lokálně na SD kartu. Software byl navržen s ohledem na použití komorové měřící metody, která je v textu také popsána.
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Intelligent wattmeter with network communication options (Ethernet / WiFi)
Haluška, Daniel ; Juráň, Radovan (oponent) ; Rusz, Martin (vedoucí práce)
The goal of the Bachelor Thesis is the implementation of a measuring device for measuring alternating voltage, current and calculating of power consumption. A voltage divider with one-way offset is used for voltage measurement, and the ACS712 integrated circuit with a Hall sensor provides electric current measurement. The Arduino singleboard computer, for which the OLED display is suitable, takes care of the representation and calculation of the electrical power. Furthermore, this device allows communication with the Internet and through the server allows a simple graphical display of measured data. The manufactured measuring device allows measuring power regular outlet up to 3680 W.
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Automatizovaný tester UWB rádiových lokátorů
Charvát, Jan ; Juráň, Radovan (oponent) ; Mlýnek, Petr (vedoucí práce)
Tato diplomová práce se zabývá procesem automatizace testování bezdrátových lokátorů. Tyto zařízení využívají systém UWB, který je představen v teoretické části této práce. Dále je zde rozebrána problematika testovacího procesu a možností jeho automatizace. Praktická část této práce je věnována návrh a zhotovení automatického testovací přípravku pro UWB lokátory, a to jak hardwarové, tak softwarové části.
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Universal Multi-Rat Tester For Mmtc Applications
Juráň, Radovan ; Možný, Radek
While the IoT has made significant progress along the lines of supporting its individualapplications, there are many massive Machine-Type Communication (mMTC) scenarios in which theperformance offered by any single Radio Access Technology (RAT) available today might be insufficient.To address these use cases, we introduce the concept of multi-RAT tester, which implies theavailability and utilization of several RATs within a single IoT device. We begin by offering insightsinto which use cases could be beneficial and what the key challenges for mMTC implementation are.We continue by discussing the potential technical solutions and employing our own prototype of amulti-RAT device capable of using different Low-Power Wide-Area (LPWA) communication technologies.It is assumed that use of multiple radios simultaneously will lead to overall improvementof communication parameters by leveraging the synergy between RATs. The novel vision enabledby the multi-RAT concept in this work could be impactful across multiple fields and calls for crosscommunityresearch efforts in order to adequately design, implement, and deploy future multi-RATmMTC solutions.
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Implementace komunikačních technologií IoT v simulačním nástroji NS-3
Rehberger, Marek ; Mašek, Pavel (oponent) ; Juráň, Radovan (vedoucí práce)
Bakalářská práce se ve své teoretické části zabývá LPWA komunikačními technologiemi v licenčním frekvenčním spektru, konkrétně technologiemi LTE Cat-M1 a NB-IoT. V teoretické části jsou shrnuty pojmy tykající se LPWAN (Low Power Wide Area Network), licenční a bezlicenční technologie, chytré sítě, NB-IoT a LTE Cat-M1. Je popsáno využití LPWA technologií v oblasti chytrých sítí a pro práci je využita myšlenka chytrých odečtů v budovách. Následně je v praktické části pro technologii LTE Cat-M1 provedena implementace komunikačních scénářů pro přenos dat v rámci chytrých sítí s využitím nástroje Network Simulator 3 (NS-3) a modulu LENA. Výsledky simulací jsou přehledně zpracovány formou grafů a tabulek.
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Field sensor network for microclimatological measurements
Juráň, Radovan ; Frýza, Tomáš (oponent) ; Povalač, Aleš (vedoucí práce)
This work is focused on the design of a field wireless sensor network for microclimatological measurements, especially juvenile carbon dioxide emissions in the area of hydrothermal karst, based on LoRaWAN. The theoretical part of the thesis presents an overview of the target location, possible solutions for measuring, obtaining and transmitting data. The practical part is then devoted to the complete design of the entire system -- from the measuring device through the concentrator and gateway to the backend of sending data to the cloud storage. The results of this complex problem are presented continuously and the appendices contain more detailed and illustrative examples.
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