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9DOF sensor for weapon orientation measurement
Růžička, Jiří ; Richter, Miloslav (referee) ; Šedivá, Soňa (advisor)
This thesis deals with multi-axis position sensors, their nature and individual parts and types of these sensors. It is outlined their historical origin and the most used modern types, such as micro-electro-mechanical sensors. Further, the properties of these sensors, error sources and their compensation are discussed. Output data formats are also discussed here, such as Euler angles, their calculation and applications. The selected sensor is implemented in the simulator electronics, and the graphical application demonstrates its functions.
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Personal Navigation Based on Wireless Networks and Inertial Sensors
Kaňa, Zdeněk ; Raida, Zbyněk (referee) ; Soták,, Miloš (referee) ; Bradáč, Zdeněk (advisor)
Tato práce se zaměřuje na vývoj navigačního algoritmu pro systémy vhodné k lokalizaci osob v budovách a městských prostorech. Vzhledem k požadovaným nízkým nákladům na výsledný navigační systém byla uvažována integrace levných inerciálních senzorů a určování vzdálenosti na základě měření v bezdrátových sítích. Dále bylo předpokládáno, že bezdrátová síť bude určena k jiným účelům (např: měření a regulace), než lokalizace, proto bylo použito měření síly bezdrátového signálu. Kvůli snížení značné nepřesnosti této metody, byla navrhnuta technika mapování ztrát v bezdrátovém kanálu. Nejprve jsou shrnuty různé modely senzorů a prostředí a ty nejvhodnější jsou poté vybrány. Jejich efektivní a nové využití v navigační úloze a vhodná fůze všech dostupných informací jsou hlavní cíle této práce.
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Measurement unit for sports analysis with inertial sensors
Dugas, Martin ; Brablc, Martin (referee) ; Kumpán, Pavel (advisor)
Master's thesis is dealing with desgin of a measuring unit incorporating inertial sensors, used for analysis in canoe sprint. Data from a three-axis accelerometer and a three-axis gyroscope were combined using an extended Kalman filter, yielding speed, roll, pitch and yaw of the boat and stroke rate. Calculated values were verified by a GPS. Furthermore, parameters describing dynamic behaviour of the system were identified, allowing an inclusion of dynamic quantities like force and power into the analysis.
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Construction of a Pen with Hidden Acquisition of Behavioral Signature Samples
Müller, Dominik ; Sakin, Martin (referee) ; Drahanský, Martin (advisor)
This thesis deals with the construction of pen for hidden acquisition of behavioral signature samples. The proposed system provides realtime data acquisition with recording possibility. Signature samples are acquired using inertial sensors and pressure sensor. The custom printed circuit board with pen model have been developed. The special application has been developed for pen control. Received data are further processed for pen movement recognition. Bluetooth Low Energy has been used for communication and data transfer.
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Flight properties of discgolf disc
Valík, Tomáš ; Sekora, Jiří (referee) ; Hanák, Petr (advisor)
Even through the rising popularity of disc golf all around the world, there aren't many solutions on how to compare individual throws, other than by observing. By placing inertial sensors on the bottom plate of the disc, an average rotation frequency was obtained by an algorithm. By comparing six methods of evaluation with reference values measured with the Qualisys system, the best method returns an average percent error of 2,66 %. Based on this result a test comparing two throws, backhand and forehand, was made, with average values of 14,22 and 11,46 revolutions per second. Two sample t-test rejected null hypothesis at the 0,05 significance level with p-value 2,101*10^(-18).
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Flight properties of discgolf disc
Valík, Tomáš ; Sekora, Jiří (referee) ; Hanák, Petr (advisor)
Even through the rising popularity of disc golf all around the world, there aren't many solutions on how to compare individual throws, other than by observing. By placing inertial sensors on the bottom plate of the disc, an average rotation frequency was obtained by an algorithm. By comparing six methods of evaluation with reference values measured with the Qualisys system, the best method returns an average percent error of 2,66 %. Based on this result a test comparing two throws, backhand and forehand, was made, with average values of 14,22 and 11,46 revolutions per second. Two sample t-test rejected null hypothesis at the 0,05 significance level with p-value 2,101*10^(-18).
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Swimming analysis using a SwIMU measuring device
Láznička, Jakub ; Šťastný, Jan (referee) ; Bátorová, Michaela (advisor)
This bachelor thesis deals with the description of the inertial sensor for measuring swimmers.The work contains a description of the possibility of performing swimming performance analyzes. In the practical part, a pilot measurement was performed and a detailed manual was created containing a description of accessories, the measurement process and the methodology of subsequent evaluation. An external database in MS Excel was created to compare the evaluated measurements, used to sort data with the possibility of statistical processing.
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Application of inertial sensors in physiotherapy
Doležalová, Eva ; Sládková, Petra (advisor) ; Oborná, Pavlína (referee)
OF BACHELOR THESIS: Author's first name and surname: Eva Doležalová Bachelor thesis supervizor: MUDr. Bc. Petra Sládková Bachelor thesis consultant: Mgr. Štěpánka Kozlerová Oponent: Title of bachelor thesis: Application of inertial sensors in physiotherapy Key words: inertial sensors, fyzioterapie, accelerometr, gyroskop, functional independence measures, neurorehabilitation Abstract: Inertial sensors are devices that allow monitoring of the movement. They are used also in physiotherapy, where they are applied to analyze walking and to detect falls. My bachelor thesis is focused on the possibility of using inertial sensors for monitoring patients affected by upper extremity. The theoretical part contains an outline of chosen foreign studies that deal with this issue. The second part is about theoretical neurorehabilitation, which is an important part of treatment for patients after brain damage. The practical part is processed in the form of quantitative research. The aim was to obtain and correlate the values obtained before and after the rehabilitation process. It was a total daily activity of upper limbs, which was measured by inertial sensors and the results of functional independence measures (FIM).
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Assessment of motor activity in children with autism by inertial sensors - Method of measurement and its utilization in diagnostic
Nývltová, Lucie ; Komárek, Vladimír (advisor) ; Zounková, Irena (referee)
Autism belongs to developmental pervasive disorders. Primary symptoms of autism include failure in communication, social interaction and imagination. Other symptoms are abnormalities in physical activity manifested by delays in motor development, stereotyped movements, postural instability, impaired in imitation and dyspraxia. These symptoms already come up in the first years of life. The first diagnosis of autism used to be made between 2nd and 3rd year of life, however if the diagnosis could be based on physical symptoms, it would be possible to establish the diagnosis earlier. The work presents a method of measurement by inertial sensors that could be used to assess physical activity of autistic children.
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The influence of sensorimotor intervention on body perception and quality of movement in string musicians.
Kutinová, Eliška ; Mišinová, Klára (advisor) ; Voráčová, Helena (referee)
Playing a musical instrument is a very beautiful, but very physically demanding craft. Many musicians suffer from musculoskeletal pain caused, among other things, by a rigid, unchanging posture and a focus on performance at the expense of comfort. The theoretical part of the thesis deals with the influence of music production on the musculoskeletal system of the musician and the possibilities of therapy aimed at improving sensorimotor skills and kinesthesia. The practical part followed the influence of therapy inspired by the Feldenkrais method and Alexander's technique on the movement of the musician during and outside the performance. The research was conducted on 19 professional string musicians. Testing of probands consisted of measurements with inertial sensors, objective measurements of sensorimotor skills and kinesthesia and a questionnaire survey. The parameter measured by the inertial sensors was a jerk (indicates the smoothness of the movement). The results of the measurements show that, even after a single therapy, the smoothness of the chest movement improved statistically significantly.
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