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Electronics and CNC milling machine control
Tmej, Tomáš ; Zuth, Daniel (referee) ; Marada, Tomáš (advisor)
The diploma thesis focuses on the electronics design of a hobby CNC milling machine. There are analysed and described the individual electronic parts and components related to this problematic. Three electronics suggestions are made, these suggestions are compared. Then, one of these variants is selected and implemented. Next, is created a relevant PLC program to control the CNC milling machine with visualization for easy control.
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MATLAB/Simulink Model Based Design Using C2000 Microcontrollers
Šoupal, Ondřej ; Ctibor, Jiří (referee) ; Pazdera, Ivo (advisor)
The aim of this thesis is to explore possibilities of rapid control prototyping, describe the concept of creating the software application in MATLAB/Simulink environment with use for development kit Texas instruments LaunchPad and create an application for DC and induction motor control in this environment. This work describes the application for unipolar/bipolar control H-Bridge of power converter for DC motor, measurement of output currents, speed and its displaying in real time using serial control interface. This thesis also desribes scalar and vector control of induction motor. All software applications with measurements are created in MATLAB/Simulink and attached to the thesis.
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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.
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Design and realization of odometry sensors for mobile robot with Ackermann steering
Porteš, Petr ; Věchet, Stanislav (referee) ; Hrbáček, Jan (advisor)
Aim of this thesis is to design and construct odometric sensors for a mobile robot with Ackermann steering Bender 2 and to design a mathematical model which would evaluate the the trajectory of the robot using measured data of these sensors. The first part summarizes theoretical knowledge, while the second, the practical part, describes the design of the front axle, the design and the operating software of the front encoders and the odometric models. The last part deals with the processing and evaluation of the measured data.
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Design of the dilatation pad for linear encoder
Moravanský, Richard ; Hadraba, Petr (referee) ; Štěpánek, Vojtěch (advisor)
The bachelor’s thesis deals with the issue of linear length sensors, their dividing, construction, temperature effects and design of an dilatation pad. The aim of the work is a professional search on the topic of linear length sensors, design of variants of the pad and the associated recommendation for practice. The chapter of current knowledge is dedicated to basic knowledge about position sensors, ie. converter sensor connection types. The following chapter is about the description of the basic parts of linear systems, specifically the method of drive and lead in linear systems. After clarifying the concepts, the chapter of linear length sensors will be explained. The chapter deals in more depth with position measurement in linear systems, photoelectric sensing, and a linear encoder from HEIDENHEIN. As the last part of the theory, the analysis of thermal effects is presented. The practical part describes the design of variants of dilatation pad and assembly of elements that allow expansion, their connection and clamping. In the final part, the best variant and recommendation for practice is suggested.
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4K real-time video encoding using NVENC technology
Buchta, Martin ; Přinosil, Jiří (referee) ; Kříž, Petr (advisor)
Diploma thesis is focused on real-time 4K video encoding using NVENC technology. First chapter describes the most used video codecs H.264 and HEVC. There is an explanation of the principle of graphic cards and their programmable units. Analysis of the solution of open source Video Codec SDK is also part of the thesis. The main focus of the thesis is an implementation of an application which can handle 4K video encoding from multiple cameras in real time. Performance and qualitative tests were performed for application. Results of these tests were analyzed and discussed.
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High Voltage Pulse Generator for Electroporation of Cells
Puczok, Václav ; Martiš, Jan (referee) ; Červinka, Dalibor (advisor)
The main goal of this thesis is to design control board for the experimental electroporation device and to develop control firmware. The first chapter of this work focuses on the electroporation phenomenon itself. Behaviour of the cell model in external electrical field is described there as well as simulation and overview of how electroporation affects living tissue. It also explains the main requirements for parameters of the electroporation pulses as well as need for ECG synchronization. Furthermore, some remarks are given about novel high frequency electroporation method, which involves use of nanosecond bipolar high voltage pulse bursts. The second chapter briefly introduces commercial electroporation device called Nanoknife, including control part, power part, and it's limits. The third chapter consists of introduction of the novel experimental electroporation device developed at BUT. Power part of this device is discussed as well. Next chapter focuses on design of the control board for this device and also on description of the particular schematic parts. There is a control algorithm explanation in the fifth chapter of this thesis followed by the brief manual to machine operation.
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Implementation of methods for measurement of rotational speed using cRIO platform
Fábry, Tomáš ; Uher, Miroslav (referee) ; Havlíková, Marie (advisor)
This diploma thesis implements methods for a measurement of rotational speed. It is implemented on the Compact RIO platform from National Instruments. Corresponding SW is implemented using the graphical programming language G in LabView environment. Developed system uses two different sensors – incremental encoder and tacho sensor for measurements of rotational speed. Thesis further analysis and implements a method for an encoder nonlinearity determination and for its on-line correction. For used methods, effects adding errors into the measurements are evaluated and quantified.
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