|
|
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.
|
|
|
Controlling of stepper motor
Semrád, Michal ; Žalud, Luděk (referee) ; Kopečný, Lukáš (advisor)
Bachelor’s thesis discusses about the fundamental issues of stepper motors. The following text provides an overview of different types of stepper motors and explains how they can be controlled. Followed is chosen the stepper motor, which is controlled by using driver A4988 and evaluation kit Primer STM32C. Graphic user interface is created on the LCD display of the evaluation kit.
|
|
|
Differential GPS
Madron, Tomáš ; Veselý, Miloš (referee) ; Žalud, Luděk (advisor)
This master’s thesis is the design of the system of the differential GPS, creation of the software for basic wireless communication between 2 GPS receivers, and practical tests of the designed system. Parameters and characteristics of system were determined and they should inform us better about the appropriateness of the designed system for navigation of a mobile robot in outside conditions.
|
|
|
Quadrocopter - Control Unit and Communiaction
Vomočil, Jan ; Kopečný, Lukáš (referee) ; Žalud, Luděk (advisor)
This thesis deals with design control and communication unit for flying robot known as Quadrocopter. The goal is design and practical implementation unit, which allows measurement of tilt and rotation of the robot in the airspace using inertial sensors. Furthermore, this unit conveys the user information about the flight altitude at which the robot is located. All measured data are transmitted via communication modules to the ground and processed user software.
|
|
|
Mobile robot navigation with obstacle avoidance
Stříteský, Vladimír ; Burian, František (referee) ; Žalud, Luděk (advisor)
Thesis deals with automatic guided mobile robot focused on obstacle avoidance during ride on planned route. There are summaries of usually used obstacle detecting sensors and algorithms used for path finding. Based on this, own solution is designed. It uses waypoints changes to pass obstacle. MATLAB simulation is created for tests of new designed method. This method is implemented to real robot for real world testing. Reached goals and upgrade possibilities are summarized in bottom of thesis.
|
|
|
Autonomous Robotic Gamma Radiation Measurement
Lázna, Tomáš ; Burian, František (referee) ; Žalud, Luděk (advisor)
Tato práce se zaměřuje na autonomní lokalizaci radiologických zdrojů v definované oblasti zájmu. Jejím cílem je vyvinout lokalizační strategie a platformu, na které je bude možné vyzkoušet. Platforma je sestavena z průzkumného robotu Orpheus-X3, scintilačních detektorů a přesného GNSS přijímače. Algoritmus pro vytváření mapy distribuce radiačního pole je rozšířen. Jsou představeny nové metody založené na směrové citlivosti navrhovaného detekčního systému. Počáteční průzkum oblasti zájmu je uskutečněn pomocí kružnicových trajektorií. Všechny algoritmy byly otestována jak simulacemi, tak reálnými experimenty. Dosažená přesnosti lokalizace je v řádu desítek centimetrů. Časová efektivita je použitím nových algoritmů zvýšena přibližně dvakrát až pětkrát. Jedním z~přínosů práce je vývoj modulárního systému, který může být přesunut a uzpůsoben na jiné platformy. Výhodou použitého systému je vysoký stupeň autonomie a bezpečnost pro lidského operátora.
|
|
|
Autonomous Landing System for Quadrocopter
Vomočil, Jan ; Kopečný, Lukáš (referee) ; Žalud, Luděk (advisor)
This thesis describes the design and implementation of systems for automatic landing and stabilization of air vehicle known as Quadrocopter. It focuses on image processing from a camera placed on board of the robot. The aim of image processing is detect landing target and calculate the distance from the desired position. Further is solved vertical stabilization for higher altitudes. For this function is measured atmospheric pressure. Conversely, for low altitude flight is used a ultrasonic range finder. In the conclusion is solved the implementation of the system.
|
|
|
3D display device
Varga, Tomáš ; Žalud, Luděk (referee) ; Burian, František (advisor)
Based on binocular vision the human eye is capable of generating the observed spatial perception of the object. Nowadays 3D imaging of two-dimensional surface is in vogue especially in the cinema industry. However, 3D imaging is gradually getting into other industries especially in other parts of everyday life (advertisements, presentations, entertainment ...). 3D images can be created in various ways, some of which are detailed in this master´s thesis. This thesis deals with the description and the drawing up of a 3D display which provides a three-dimensional image without using auxiliary objects such as glasses. The display unit produces a three-dimensional image at a fundamental level, which consists of providing high-speed rotation of the display and creates the current portion of the object in specified sections.
|
|
|
Electronic Subsystem of a Small Mobile Robot
Podolan, Luděk ; Jílek, Tomáš (referee) ; Žalud, Luděk (advisor)
The topic of this bachelor thesis is design and construction of a mobile robot with wheeled differential platform. The main goal was to design, implement and test an electronic sub-system for a small mobile robot. Each chapter firstly deals with theoretical aspects of relevant topics and after that describe the process of construction. The thesis shows various ways of construction of the robot with the process of selection of the optimal one. The main controlling part of the robot is the AVR microcontroller placed on the EvB4.3 development board. A simple menu was created on an LCD display for communication between the user and the robot. Battery management is controlled by an analogue to digital converter. The last two chapters focus on encoders and communication between the robot and a proximity sensor. Pictures of the robot are enclosed at the end of the thesis.
|
|
|
Position measurement of moving objects using a robotic total station
Horeličan, Tomáš ; Žalud, Luděk (referee) ; Jílek, Tomáš (advisor)
Práca sa zaoberá objavujúcim sa nekonvenčným využitím moderných teodolitov, tiež známych ako Robotické Totálne Stanice (RTS), ako sledovací a navádzací systém, určením presnej pozície dynamicky sa pohybujúceho objektu. To sa týka najmä situácií, kde nie je možné využiť konvenčné polohovacie systémy akým je napríklad GNSS. Kinematicky určená poloha objektu kontinuálne sledujúcou RTS môže byť následne v reálnom čase využitá pre autonómnu navigáciu malých bezpilotných leteckých prostriedkov (UAV) poskytnutím referenčného súradnicového systému a okamžitej polohy v ňom. Podstatná časť práce je venovaná návrhu a realizácii vhodných experimentov, ktoré overia spoľahlivosť určovania presnej polohy objektu v presnom časovom okamžiku. Boli preverené stanice série S7 a S9 od spoločnosti Trimble a stanica S9 HP, ktorá disponuje frekvenciou kontinuálneho merania až do 10 Hz bola napokon využitá pre experimenty. Lokálny čas ovládacieho panelu TSC7, ktorý zabezpečuje komunikáciu so stanicou bol pomocou protokolu PTP synchronizovaný s lokálnym časom mini-počítača Raspberry Pi, ktorý následne poskytoval referenčné meranie skutočnej polohy objektu v čase. V závere sú zhrnuté výsledky experimentov.
|
guest ::
RSS feed.