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Control of mobile robot
Vožda, Ondřej ; Skula, David (referee) ; Šembera, Jaroslav (advisor)
This thesis describes questions of developing the system for remote and presence control of a mobile robot (wheelchair). It is concerned with choice of a proper protocol for communications via wireless network, transmission of images from webcam and data from joystick. Next objective of the thesis is recognizing surrounding obstacles using ultrasonic range finders. Thesis describes observation arisen from using this type of sensors. One of the most important points of the thesis is to discuss the safety of usage of the developed system. In conclusion, possibilities for future development are stated.
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Hardware and software for mobile robots
Sárközy, Gabriel ; Skula, David (referee) ; Veselý, Miloš (advisor)
The aim of this work is to modify hardware and software of small mobile robots, so they can be better used in Micromouse and Path Follower challenges. The first part of the project includes debugging and creating of a correct documentation of the existing electric circuits used in the robot called RUBRIK. My work was also to design and realize mechanical, electrical and software upgrades. The second part includes the design and realization of similar modifications of the robot ROBIK. Each robot has an Atmel AVR microcontroller. Robots are programmed in C programming language.
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RFID control
Otava, Lukáš ; Skula, David (referee) ; Šembera, Jaroslav (advisor)
This thesis is about RFID technology about its features and available solutions for long distance identification reading. In the next part there is complete practical design of RFID access control of car park. This solution correspond with requests of safety and security. Output of this system control is control signals for entrance gate. This device uses Atmel AVR microcontroller. As RFID reader is used hybrid module with external antenna. Application for microcontroller is written in C programming language.
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Data-fusion for Rotation Measurement
Skula, David ; Kopečný, Lukáš (referee) ; Žalud, Luděk (advisor)
The goal of this paper is to design and implement a module to determine the rotation around three axes normal to each other. The paper is divided into six parts. The first part deals with the rate sensor - the gyroscope. It is explicated how the gyroscope is used for rotation measurement. The next part of the paper explains the acceleration sensor – the accelerometer, functioning as an inclination sensor. The third part analyses the magnetic field sensor – the magnetometer, functioning as an electronic compass. With each type of sensor, the problems of parasitic influences are discussed. The foregoing parts constitute the basis for the HW of the module design that is explained in the forth parts. It deals especially with components used for processing the sensor signals. The next part is a description of the software of the module. Here, the software of the particular sensors and measurement methods used with them are discussed. The last part describes the software of the control application in the computer. The attention is paid especially to processing data from the sensors and their compensation against parasitic influences.
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Rotation sensors in robotics
Javorček, Martin ; Skula, David (referee) ; Žalud, Luděk (advisor)
The goal of this paper is to suggest suitable method for angle measuring of mobile robot. There are being analyzed 3 different sensors – gyroscope, accelerometer and electronic compass in the prologue. Their advantages and disadvantages in the theoretical way are being explained in this part and also their opportunities of use in the practical way. In the following parts the work is focused on MEMS gyroscopes and their opportunities of use in the practical way with regard to achievable exactness and to the application for development of its exactness. The application of device together with main SW for microcontroller and the valuation of achievable exactness and determined facts are being described in the conclusion part.
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LED driver
Hromádka, Michal ; Skula, David (referee) ; Šembera, Jaroslav (advisor)
This thesis describes the design and implementation module for LED lighting. The module is designed to control brightness of four LED circuits. Control is done via IR remote control or from PC via USB interface. The module has a mode of "learning", which allows control from any controller that uses the RC5 or NEC protocol. The thesis also deals with the description of used IR protocols, analysis of selected components and software developed for the ATmega16 microcontroller and PC.
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Control of mobile robot
Vožda, Ondřej ; Skula, David (referee) ; Šembera, Jaroslav (advisor)
This thesis describes questions of developing the system for remote and presence control of a mobile robot (wheelchair). It is concerned with choice of a proper protocol for communications via wireless network, transmission of images from webcam and data from joystick. Next objective of the thesis is recognizing surrounding obstacles using ultrasonic range finders. Thesis describes observation arisen from using this type of sensors. One of the most important points of the thesis is to discuss the safety of usage of the developed system. In conclusion, possibilities for future development are stated.
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RFID control
Otava, Lukáš ; Skula, David (referee) ; Šembera, Jaroslav (advisor)
This thesis is about RFID technology about its features and available solutions for long distance identification reading. In the next part there is complete practical design of RFID access control of car park. This solution correspond with requests of safety and security. Output of this system control is control signals for entrance gate. This device uses Atmel AVR microcontroller. As RFID reader is used hybrid module with external antenna. Application for microcontroller is written in C programming language.
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