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Sensor Based Motion Tracking and Recognition in Martial Arts Training
Agojo, Stephan ; Sekora, Jiří (referee) ; Harabiš, Vratislav (advisor)
In various martial arts, competitors are interested in quantifying and categorising techniques which are exercised during training. The implementation of embedded systems into training gear, especially a portable wireless body worn system, based on inertial sensors, facilitates the quantification and categorisation of forces and accelerations involved during the training of martial arts. The scope of this paper is to give a brief overview of contemporary technology and devices, describe key methods that are implemented in such devices and as well to provide a project outline. For this reason a literature research was carried out using search engines and databases. The search yielded that devices are capable of tracking activities of daily life; however only one product was found which can track and recognise techniques applied in martial arts training just for the upper body. The realisation of a sensor based tracking system which can track and classify different exercises is possible with present technology. Even so, different challenges such as implementing a sensor fusion and classifier algorithm need to be overcome. Therefore, the project development has to be viewed as an iterative process.
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Forearm prosthesis
Vařečka, Martin ; Sekora, Jiří (referee) ; Balogh, Jaroslav (advisor)
Bachelor’s thesis is focused on design of active hand prosthesis. This thesis summarizes upper limb anatomy focused on forearm. Then deals with amputations techniques and indication for amputation. Part describing contemporary prosthesis is important to design an active forearm prosthesis, který je popsán v třetí a čtvrté kapitole. The system processes biosignals using instrumentation amplifiers. The signals are evaluated by the Arduino development board, which mediates control of servo motors.
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Statistical Analysis of Anomalies in Sensor Data
Gregorová, Kateřina ; Čmiel, Vratislav (referee) ; Sekora, Jiří (advisor)
This thesis deals with the failure mode detection of aircraft engines. The main approach to the detection is searching for anomalies in the sensor data. In order to get a comprehensive idea of the system and the particular sensors, the description of the whole system, namely the aircraft engine HTF7000 as well as the description of the sensors, are dealt with at the beginning of the thesis. A proposal of the anomaly detection algorithm based on three different detection methods is discussed in the second chapter. The above-mentioned methods are SVM (Support Vector Machine), K-means a ARIMA (Autoregressive Integrated Moving Average). The implementation of the algorithm including graphical user interface proposal are elaborated on in the next part of the thesis. Finally, statistical analysis of the results,the comparison of efficiency particular models and the discussion of outputs of the proposed algorithm can be found at the end of the thesis.
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Expert System for Assessing the Type of Arrhythmia during Catheter Radiofrequency Ablation of Cardiac Arrhythmias
Šromová, Michaela ; Provazník, Ivo (referee) ; Sekora, Jiří (advisor)
The theoretical part of the thesis contains a brief description of the anatomy and electrophysiology of the heart, as well as both, surface and intracardiac electrocardiograms. The thesis also describes the different types of cardiac tachycardias, their differential diagnosis and what is known as The Expert System. The practical section of the thesis notes and outlines the tree diagrams, and additionally describes various software solutions of The Expert System. Further, the thesis includes the classification of the heart rhythm, using The Expert System method with three typical tachycardia cases, and including a list of questions asked by The Expert System to the user. Answers to all questions asked are being assessed in the text, as well as illustrated in submitted examples of intracardiac ECG recordings. The Expert System has been verified during a series of catheterization procedures on 26 patients (where the evaluated cardiac rhythm was 34). The classication of the type of heart rhythm (per The Expert System) when comparing the results with the doctors coincided in 100 % of tested cases.
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LabVIEW based Audio Signal Transmision via Ethernet
Khait, Ranny ; Roleček, Jiří (referee) ; Sekora, Jiří (advisor)
Hlavním tématem předkládané práce je přenos nízkofrekvenčního signálu po síti Ethernet v LabVIEW. Práce obsahuje teoretický úvod, ve kterém jsou popsány typy přenosových protokolů, metody komprese, Ethernet, popis programu LabVIEW a jeho použití a biosignály. Praktická část je zaměřená na realizaci odesílání a přijmu dat po síti Ethernet.
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Wireless Messaging System
Musil, Tomáš ; Dlouhý, Jiří (referee) ; Sekora, Jiří (advisor)
The aim of thesis is a design of wireless pager, that can be used for short text messages transmission from the sender to a particular recipient. The report is sent from a computer via serial port. The application is based on microcontrollers, which provide data protection, evaluation and display data on the display of the receiver. The wireless transmission is effected via the RF modules, that are powered from batteries.
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Monitoring of persons in an enclosed space
Rivolová, Kristýna ; Kolářová, Jana (referee) ; Sekora, Jiří (advisor)
This diploma thesis deals with monitoring of persons in an enclosed space. The goal of this thesis is to get acquainted with the issue of indoor localization and the subsequent creation of own solution using the ultrasound technology. Ultrasound technology should eliminate some deficiency of current technologies. The theoretical part includes the overview of some current methods. Last part of the thesis verifies the function of device.
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Microcontroler based ECG Generator
Ruttkay, Michal ; Bubník, Karel (referee) ; Sekora, Jiří (advisor)
This thesis describes the design and realization of the EKG generator which uses a microcontroller in order to generate the EKG signal. The EKG generator is equipped with one input and two outputs for recording the signal on the oscilloscope. The LCD display shows the heart rate that can be changed by means of buttons. In addition to the design and realization of the EKG generator, the thesis describes cardiac activity for the proper conduct of EKG signal as well as the flowchart of the program for the microcontroller.
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3D dental scanner
Kotek, Lukáš ; Sekora, Jiří (referee) ; Balogh, Jaroslav (advisor)
The general aim of my master´s thesis is to study the actual principles of 3D scanning, the anatomy of human teeth, use of 3D scanning in dentistry and other medical fields. Another part of this thesis is about software and hardware design of 3D scanning system, which enable us to scan dental casts. This design is using webcam, projector and turntable. The principle of scanning is based on the activ triangulation. The output of 3D scanner is a horde of spots, which are used for reconstruction of a surface. The reconstructed surface is finally saved as .stl format.
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