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Upper limb movement analysis
Toláš, Štěpán ; Sekora, Jiří (referee) ; Kolářová, Jana (advisor)
This master's thesis investigates the use of inertial measurement units (IMUs) for the analysis of upper limb movements with a focus on their use in rehabilitation. Using accelerometers, gyroscopes and magnetometers, IMUs provide comprehensive data on limb orientation and dynamics. A pilot study was conducted to appropriately process the available data, develop a measurement protocol and an application to visualize the movement data.
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Analysis of inertial data from UAV
Žáček, Vítězslav ; Raichl, Petr (referee) ; Janoušek, Jiří (advisor)
This bachelor thesis focuses on the design of an unmanned aerial vehicle (UAV) attitude estimation system using inertial data and its processing in a robotic operating system (ROS2) environment. The theoretical part describes the principle of operation of the inertial measurement unit (IMU), including gyroscope, accelerometer and magnetometer, and their role in UAV stabilization and navigation. The practical part deals with the research and selection of suitable algorithms for attitude and orientation estimation, such as the Extended Kalman Filter (EKF) and the Fourati’s nonlinear attitude estimation.
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Indoor Positioning Based on Inertial Measurement Unit
Coufal, Marek ; Vychodil, Josef (referee) ; Král, Jan (advisor)
This bachelor’s thesis deals with inertial navigation intended for indoor usage. The algorithm for processing accelerometer and gyro data is described along with their position in equations of motion. Various coordinate systems are defined for ease of manipulation of vector quantities, including conversions and rotations between frames. The thesis also addresses the design of the hardware for the inertial unit, including the minimum requirements for fast data recording. Some chapters are dedicated to the design of the printed circuit board and the implementation of the device, followed by the development of firmware and software for data logging and processing.
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Design of a wireless unit for controlling a piano pedal by head movement
Mylbachr, Radovan ; Bastl, Michal (referee) ; Adámek, Roman (advisor)
The bachelor thesis deals with the development of a wireless unit for controlling a piano pedal by head movement serving mainly as an aid for disabled electronic piano players. In the theoretical research, the thesis focuses on existing solutions and on the description of the pedal function that the wireless unit is supposed to replace. The practical part of the thesis deals with the design of the electronics, the construction of the protective case and the programming of this unit's prototype, followed by an analysis of the functionality and user-friendliness.
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Neural Networks in Inertial Navigation Systems
Tejmlová, Lenka ; Ochodnický,, Ján (referee) ; Masopust, Jiří (referee) ; Šebesta, Jiří (advisor)
Disertační práce je zaměřena na oblast inerciálních navigačních systémů a systémů, které pro odhad polohy používají pouze výpočty. Důležitým faktem v dané problematice je vysoká nepřesnost určení polohy při střednědobém a dlouhodobém využívání takového systému díky kumulativní chybě za předpokladu, že inerciální systém není podpořen žádným dalším přídavným systémem. V disertační práci jsou uvedeny možné přístupy k této problematice a návrh na zvýšení přesnosti určování polohy pouze na základě inerciálních senzorů. Základem inerciální měřicí jednotky je systém s 9 stupni volnosti, který umožňuje snímat celkové zrychlení, rychlost rotace a sílu magnetického pole, jednotlivě ve třech osách. Klíčovou myšlenkou je zařazení umělých neuronových sítí do navigačního systému tak, že jsou schopny rozpoznat charakteristické rysy pohybů, a tím zvýšit přesnost určení polohy. Popis navrhovaných metod zahrnuje analytický postup jejich vývoje a tam, kde je to možné, i analytické hodnocení jejich chování. Neuronové sítě jsou navrhovány v prostředí MATLABTM a jsou používány k určení stavu inerciální jednotky. Díky implementaci neuronových sítí lze určit pozici jednotky s řádově vyšší přesností. Aby byl inerciální polohovací systém s možností využití neuronových sítí demonstrativní, byla vyvinuta aplikace v prostředí Qt. Navržený systém a neuronové sítě byly použity při vyhodnocování reálných dat měřených senzory.
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Analysis of AHRS unit robustness
Honkyš, Pavel ; Králík, Jan (referee) ; Spáčil, Tomáš (advisor)
This work deals with the measurement of low cost MEMS sensors and their measurement inaccuracy caused by acceleration, this effect is described as G-sensitivity. The aim was to put the test station into operation, to design electronics containing a microcontroller, which sends the measured information to a computer using a wireless module, here to estimate the angle of rotation of the sensor using a suitable algorithm and to design a compensation algorithm to suppress the effect of acceleration. The measured data were processed using Madgwick's algorithm, where the error of the measured angle of rotation occurred during the action of acceleration.
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Telemetric system for RC airplane with navigation
Orolin, Jakub ; Šteffan, Pavel (referee) ; Háze, Jiří (advisor)
This project is focused on design telemetric system for radio controlled aircraft. The output of the system represents relevant flight data such as velocity, altitude, direction of flight, rotation or geographical position on the map. Furthermore, the system could check all internal board status parameters. All these parameters are displayed in real time at the receiving station, which includes voice navigation for landing. Another part of the receiving station is flight recorder or a database used for registration of particular information and post - flight analysis.
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Development localization board
Szabó, Michal ; Novotný, Radovan (referee) ; Levek, Vladimír (advisor)
This document describes a device capable to determine geographical position thanks to its GNSS module and measure the change of movement with the help of an accelerometer and gyroscope. Outputs of these integrated circuits are combined, data are processed and fused thanks to a numerical integration and mathematical filters. Results are stored on a memory card. The whole development is described from a concept, through the making of the device and software algorithms to the testing of its functions.
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