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Prostředky pro zajištění interoperability Arduino/ESP a ROS2
Fabo, Matúš ; Beran, Jan (referee) ; Janoušek, Vladimír (advisor)
Táto práca skúma integráciu nízkonákladovej rady mikrokontrolérov ESP32 s Robot Oper- ating System 2 (ROS2), populárnym frameworkom v oblasti robotiky. Primárnym cieľom je vyvinúť metódy a nástroje, ktoré uľahčia bezproblémovú integráciu mikrokontrolérov ESP32 do vývojového ekosystému ROS2 s využitím existujúcich middleware riešení posky- tovaných tretími stranami. Zameraním sa na začlenenie projektov ESP-IDF do nástrojov ROS2 sa výskum zameriava na zefektívnenie nasadenia a riadenia systémov založených na ESP32 v robotických aplikáciách. Tento prístup zvyšuje dostupnosť a užitočnosť ROS2, čo umožňuje efektívnejšie využitie mikrokontrolérov ESP32 v rôznych robotických kontextoch.
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Electromechanical door lock with biometric reader and NFC
Tkadlec, Prokop ; Fiedler, Petr (referee) ; Benešl, Tomáš (advisor)
The aim of this thesis is to prototype an electromechanical lock, that will be controlled by a biometric reader and NFC. In this bachelor's thesis all the individual components of designed prototype are presented and described. The next chapter presents selected software and hardware solutions and their implementation into the prepared physical configuration. The designed prototype enables the authentication of stored fingerprints and cards that support the ISO/IEC 15693 standard. Insertion and saving of authorized fingerprints and cards is possible via serial communication.
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Data concentrator
Dvorský, Petr ; Arm, Jakub (referee) ; Fiedler, Petr (advisor)
The topic of this thesis is the design and realization of a modular Data concentrator for various types of measurements in diverse conditions. The device conception, basic principles, design and functionality are described herein. Also, the lightweight protocol design for radio communication, standardized XML format for data storage and cloud usage are described. The electrical design of the device as well as the design of the printed circuit board was made using the Eagle Autodesk electronic design automation software (Eagle Autodesk EDA). The control software written in C/C++ for a target microcontroller (ESP32-WROOM-32) is based on a FreeRTOS platform and ESP-IDF framework. An IDE for managing this software is Visual Studio Code with PlatformIO extension. Selected and used Cloud Platform is ThingSpeak from Mathworks, which uses certain components from Matlab platform.
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Application of NB-IoT technology
Cagáň, Juraj ; Věchet, Stanislav (referee) ; Krejsa, Jiří (advisor)
The initial chapters of master’s thesis focus on NB-IoT technology and its alternatives within the field of Low-Power Wide-Area (LPWA) networks. The research is further enhanced by comparing various commercial IoT platforms, protocols, and wireless networks, that are intended for local communication between sensors and IoT devices. The subsequent section defines the goals of this project and presents the approach taken towards examining the given issue. Based on the research findings, the main parts of the technological demonstrator are outlined in greater detail. The practical section elucidates the selection of appropriate microcontrollers and sensor nodes, while also covers the design of a customized printed circuit board. Additionally, it describes the control algorithm at a higher level of abstraction. The thesis includes the design of communication for collecting sensory data through a commercial cloud platform, as well as the development of a simple user interface. Finally, the thesis concludes with practical testing of NB-IoT network parameters, followed by the implementation of a demonstrative application on a real system.
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Tool for Management of Flash Memory Wear-Leveling on Embedded System Device
Havlík, Martin ; Strnadel, Josef (referee) ; Šimek, Václav (advisor)
Práce se zabývá mechanismem wear leveling nad pamětí typu flash, zejména implementací poskytovanou společností Espressif v rámci IoT Development Framework, a to s cílem vytvořit nástroj pro sledování opotřebení flash paměti způsobené operacemi mazání. Pro účely tohoto nástroje je vytvořena vylepšená verze mechanismu, řešící některé nedostatky a rozšiřující původní wear leveling poskytovaný společností Espressif. Vylepšení zahrnuje možnost sledovat opotřebení paměti s rozlišením jednotlivých sektorů a zavádí pseudonáhodnou složku do mapovacího algoritmu za pomocí šifry zachovávající formát založené na nevyvážené Feistelově síti, vedoucí k rovnoměrnějšímu rozložení operací mazání po paměti. Toto pseudonáhodné mapování je následně otestováno pomocí simulace životnosti paměti ve vybraných zátěžových scénářích, s výsledky vykazujícími až pár procentní vylepšení v rovnoměrnosti opotřebení oproti původnímu algoritmu. Závěrem je vytvořen nástroj pro sledování opotřebení flash paměti, sestávající z vestavěné back-end části a PC front-end GUI vizualizační části.
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Data concentrator
Dvorský, Petr ; Arm, Jakub (referee) ; Fiedler, Petr (advisor)
The topic of this thesis is the design and realization of a modular Data concentrator for various types of measurements in diverse conditions. The device conception, basic principles, design and functionality are described herein. Also, the lightweight protocol design for radio communication, standardized XML format for data storage and cloud usage are described. The electrical design of the device as well as the design of the printed circuit board was made using the Eagle Autodesk electronic design automation software (Eagle Autodesk EDA). The control software written in C/C++ for a target microcontroller (ESP32-WROOM-32) is based on a FreeRTOS platform and ESP-IDF framework. An IDE for managing this software is Visual Studio Code with PlatformIO extension. Selected and used Cloud Platform is ThingSpeak from Mathworks, which uses certain components from Matlab platform.
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Electromechanical door lock with biometric reader and NFC
Tkadlec, Prokop ; Fiedler, Petr (referee) ; Benešl, Tomáš (advisor)
The aim of this thesis is to prototype an electromechanical lock, that will be controlled by a biometric reader and NFC. In this bachelor's thesis all the individual components of designed prototype are presented and described. The next chapter presents selected software and hardware solutions and their implementation into the prepared physical configuration. The designed prototype enables the authentication of stored fingerprints and cards that support the ISO/IEC 15693 standard. Insertion and saving of authorized fingerprints and cards is possible via serial communication.
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