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Heart rate meter
Šeda, Jan ; Rampl, Ivan (referee) ; Chmelař, Milan (advisor)
The aim of the Bachelor thesis is summary of pulse measurement facilities. Heart pulse has been one of the basic measurable quantity in medical science for thousands of years. The basic quality of the given value is accuracy. The analyse of necessity of accuracy in methods for medical practice and diagnostic is the second point of the thesis. The third and most crucial point is heart pulse meter itself – it will be described in terms of mechanics, electrics and software. System based on optical measurement has been chosen in semestral project. Furthermore, accuracy of designed meter will be tested.
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Electroencephalography
Jarošová, Veronika ; Ronzhina, Marina (referee) ; Chmelař, Milan (advisor)
This semestral paper has its aim to describe the electroencephalography. The beginning of paper is devoted to the history of electroencephalography, then there is both spontaneous and evoked brain activity described. Further, the paper deal with the electroencephalography. At the conclusion of teoretical part is described the methodology and processing of electroencephalography signal. The practical part of the work is focused on the creation of three various exercises on the epilepsy theme, reflexes and memory. Then the exercises were verified practically at fourteen volunteers. Further, in the work there is mentioned the instruction for particular measures, valuation results and its discussion.
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Peristaltic pump control via USB interface
Balogh, Jaroslav ; Chmelař, Milan (referee) ; Čech, Petr (advisor)
The purpose of this bachelor’s thesis is to practical realization of connection between peristaltic pump Rainin Dynamax RP-1 and PC, using USB interface. Integrated circuit device FT232R has been used in USB-RS422 converter, due to modified RS422 interface, which the pump RP-1 uses. There was also developed software for pump’s remote controll. RP-1’s functions can be driven from remote side or eventually automatized with this software. This work is based on semestral thesis and in future can be used in another aplications with RS422 or with RP-1 pump. Department of Biomedical Engineering, attached to FEEC, Brno University of Technology, will use this remote controll in analysis of DNA.
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Infant Movement Monitor
Zahradníčková, Ludmila ; Chmelař, Milan (referee) ; Sekora, Jiří (advisor)
Movement monitor is a detection device for monitoring the frequency of breathing of newborns and infants. It is usually indicated to children under the one year as a support to reduce the risk associated with sleep apnoea and Sudden Death Syndrome. The theoretical part of this bachelor thesis discusses the physiology of respiration, respiratory disorders, methods of monitoring and treatment. The aim of the technical part is to design own monitoring device for detecting and evaluating the frequency of breathing. It includes a block diagram and a wiring scheme of device and a flow chart of program, which is implemented by a microcontroller.
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Fatigue evaluation using electromyography
Mošnerová, Jitka ; Chmelař, Milan (referee) ; Janoušek, Oto (advisor)
The aim of the diploma thesis is the design and implementation of methods for detecting fatigue in electromyogram (EMG). At first is done a literature review on the topic of fatigue detection in electromyography (EMG). Measurement of fatigue-induced changes in the EMG signal is performed on ten subjects using the Biopac ©. Next is in the thesis solved the selection of the optimal methods of evaluating the fatigue-induced changes in EMG recording using statistical testing. In the final part of the thesis is discussion on the results of statistical testing, creation a user interface in Matlab © and comprehensive instructions for laboratory focused on the topic of fatigue in the EMG signal.
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Emergency Button for Seniors
Verbík, Josef ; Chmelař, Milan (referee) ; Strašil, Ivo (advisor)
This Thesis „Emergency Button for Seniors“ is about suggestion of realization of system emergency signalization. The System consists of programmable digital watch with wireless interface and PC with software processing signals. Status signalization is created by phone message and figuration of dialog on monitor. There is used free software for realization. Operation system on PC is Linux (distribution Ubontu 11.04). For graphic transitional plane PC application is used cross-platform framework QT. For watch firmware is used C compiler MSP430-GCC, MSP debug v0,15 and firmware OpenChronos.
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Analysis of the galvanic skin response
Caha, Martin ; Chmelař, Milan (referee) ; Ronzhina, Marina (advisor)
This work deals with the analysis of skin conductance for the study of the psychophysiological state of man, with a focus on the change in the level of arousal. It is important to study microsleep events during driving, where there are the changes in alertness and consequently the changes in skin conductivity. The experimental protocol is proposed. Skin conductance analysis is realized in Matlab. This program allows drowing reaction time and measured conductivities and calculating their parameters. These data are used for determination of vigilance level.
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Methods of radioactive radiation measurement
Šugra, Marián ; Sekora, Jiří (referee) ; Chmelař, Milan (advisor)
This thesis includes a survey of radiation measurement. It describes principle of methodes for it´s measuring with their principle together. Fixates at methods uses on medical workstations. A general nucleus of this thesis is proposition quantimeter with Geiger Muller´s tube. Contains terms at single quires of quantimeter. This equipment is powered by battery and it is assigned for some medical premises. This device will be signalized overrun beforehand adjusted value.
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Indicator of Thunderstorm
Studený, Pavel ; Sekora, Jiří (referee) ; Chmelař, Milan (advisor)
The aim of this Bachelor thesis is a theoretical analysis of thunderstorms, lightning and their detection. The theoretical description then gradually moving towards designing their own detector. The detector will operate so that when a lightning activity captures pulses which generate lightning. Lightning will register using the attached counter. After the storm could be due to information from the counters to evaluate how strong the storm was.
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Cardiotachometer
Máca, Kamil ; Číž, Radim (referee) ; Chmelař, Milan (advisor)
This masters thesis describes possibilities of a heart rate measuring. Several methods of measuring will be discussed. The primary objective of this paper is to design battery powered cardiotachometr with a range of 30-240 beats/min and a low battery indication. Cardiotachometer uses the R waves detector to measure heart rate. This thesis is focused on creation of the block diagram, electrical circuit, printed circuit and calculation of electronic device used in cardiotachometers.
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