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Inclinometers and Gyroscopes
Hývnarová, Irena ; Beneš, Petr (referee) ; Havránek, Zdeněk (advisor)
This study deals with tilt sensors. Besides others methods, accelerometers and gyroscopes are also convenient to solve this problem. Tilt sensors which are described in this thesis are working with capacitive, piezoresistive and thermal method. Capacitive accelerometers from producer Analog Devices, STmicro and Freescale, piezoresistive accelerometers from producer Panasonic Matsushita and gyroscope ADXRS300 are tested by practical measurement. Parameters of these accelerometers are found and they are compared with parameters from producer. Measurement reliability in this study is analysed as well. This thesis is divided in chapters theoretically describing principles of particular accelerometers and the chapters containing measured data evaluation.
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Using mobile phone in feedback rehabilitation
Mynařík, Ondřej ; Žalud, Luděk (referee) ; Chromý, Adam (advisor)
The aim of this thesis is to evaluate sensors used in Android mobile phones for measuring inclination and their comparation with precise reference sensor Xsens. Another goal is to create Android application for measuring inclination of balance desk. This application communicates with a computer by Bluetooth. Results indicates that sensors in mobile phones are sufficient enough to replace the precise sensor Xsens for measuring inclination of balance desk. Based on the results mobile application was created. Using a mobile phone with this application can replace Xsens, which results in rapid decrease of the price and the possible use in rehabilitation centers or by patients.
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Design of self-balancing mobile robot
Bartončík, Michal ; Hrabec, Jakub (referee) ; Šolc, František (advisor)
This thesis treatise about design self-balancing wheelframe type of segway. Introduces the principle of segway, the original models and solutions other people. The simulation uses a mathematical model to determinate the characteristics of senzors. Selection the method of measuring the angle and implementation with the help of sensors. Furthermore, deal with engines for moving of model, multifunction I/O card and desktop board for processing signal from sensors. Their connections and attechments on the construction.
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Tetris 3D - made of array LED diode
Paták, Pavel ; Pust, Radim (referee) ; Šebela, Radek (advisor)
This thesis deals with suggestion of device for playing tetris game in 3D. There is used 3D LED display – the ashlar where the LED are situated in its volume. Thesis describes possibilities of display connection with a view to minimal number of control pins. It also describes display mechanical construction. Motion of blocks in the game is controled by tilt of device, thesis describes way of tilt measuring. It also decribes in details possibilities of connection of the microcontroller and the display, comparison of connection ways, sellection of one of these solution and sellection of the microcontroller. There is also noted the structure of control software.
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Proposal control system motorcycle to suppress riding errors leading to accidents
Přibyl, Tomáš ; Liška, Jiří (referee) ; Zuth, Daniel (advisor)
Work tackles the general design systems of automatic control of engine power and braking effects so that avoid any unnecessary dangerous situations and to improve the driving characteristics and suppression causes of accident due to bad decisions of driver. Is required to propose a general system based on the draft sensors and control circuits, their relationships, design control processor, which will be without the knowledge of the driver intervene in driving motorcycle.
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Fast Re-Calibration of PTZ Camera for Traffic Analysis
Dřevo, Aleš ; Juránek, Roman (referee) ; Sochor, Jakub (advisor)
This thesis deals with problematics of PTZ-camera re-calibration during movement. The objective of this work is to keep the camera in calibration mode from default status when the known positions of Vanishing Points are in the image. With their use during movement, which is changing with motion of the camera, their positions are kept with help of two implemented methods. The first method is based on the principle of homography, the second on the principle of cross ratio. The results show that both of these methods work especially for keeping the positions of First Vanishing Points. In the case of the Second Vanishing Points there appear various problems and the results are often quite inaccurate.
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Body part tilt monitoring system
Bilík, Jan ; Valach, Soběslav (referee) ; Macho, Tomáš (advisor)
The goal of my master thesis is to do hardware design and software debug of a battery-powered device, which is able to measure angle change relative to the starting position for three days. When tilting out of adjustable bounds, the device is able to alert via sound and vibrations. Additionally, it is able to save tilt data to its memory and then transmit them to the computer via USB.
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Plan curved pedestrian bridge
Lachová, Alžběta ; Jurík,, Michal (referee) ; Koláček, Jan (advisor)
The subject of this master thesis is the elaboration of a study of a curved footbridge leading over the Svratka River. Two variants were created, from which a suspended structure was selected for subsequent modelling and assessment. The footbridge consists of a monolithic bridge deck made of prestressed concrete. The cross section of the bridge deck is designed as an asymmetrical box girder, suspended on one side by a pylon. The pylon is located on the inner side of the bridge deck at the junction of the apex and the centre of the circle and is anchored by hinges to the subgrade.
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Fast Re-Calibration of PTZ Camera for Traffic Analysis
Dřevo, Aleš ; Juránek, Roman (referee) ; Sochor, Jakub (advisor)
This thesis deals with problematics of PTZ-camera re-calibration during movement. The objective of this work is to keep the camera in calibration mode from default status when the known positions of Vanishing Points are in the image. With their use during movement, which is changing with motion of the camera, their positions are kept with help of two implemented methods. The first method is based on the principle of homography, the second on the principle of cross ratio. The results show that both of these methods work especially for keeping the positions of First Vanishing Points. In the case of the Second Vanishing Points there appear various problems and the results are often quite inaccurate.
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Using mobile phone in feedback rehabilitation
Mynařík, Ondřej ; Žalud, Luděk (referee) ; Chromý, Adam (advisor)
The aim of this thesis is to evaluate sensors used in Android mobile phones for measuring inclination and their comparation with precise reference sensor Xsens. Another goal is to create Android application for measuring inclination of balance desk. This application communicates with a computer by Bluetooth. Results indicates that sensors in mobile phones are sufficient enough to replace the precise sensor Xsens for measuring inclination of balance desk. Based on the results mobile application was created. Using a mobile phone with this application can replace Xsens, which results in rapid decrease of the price and the possible use in rehabilitation centers or by patients.
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