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Software for assuming control over the computer
Kostelník, Jan ; Kouřil, Jiří (referee) ; Polívka, Michal (advisor)
The introduction of this Master’s thesis describes a historical and technological evolution of the terminal application, including its advantages and disadvantages. In the following part, a general description of the services and their understanding are mentioned. The benefits and general advantages of the terminal services are described. For the each type of the terminal service, all the functions, options, exact advantages and disadvantages are described. Consequently, the study of the suitability of the compression is presented. On the demo application, the impact of an excessive (voluntary) loss of information is demonstrated. In the next part, the thesis deals with the most frequently used remote-control applications. The tests and comparisons are made as well. The fifth chapter is the fundamental part of this work. The design approach of the workbench is presented there. Consequently, the design approach and system implementation intended for the supervision and control is described. This system makes the user possible to observe other user’s activities and also to control their workstations. The supervising user can also access their drives and other memory devices, which are located in the monitored workstation. The communication is compressed and encrypted. The symmetric and asymmetric encryption algorithms are used there. In the following part, there are two supplementary applications mentioned – application for the key generating and network file manager. In the end of my work, the results of the performance test and also the design of other improvements are presented.
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The new side channels in cryptography
Machů, Petr ; Stančík, Peter (referee) ; Martinásek, Zdeněk (advisor)
This thesis is focused on the side-channels in the cryptology. The main attention is paid to the side-channels, which allow an attack on a computer keyboard. Especially the acoustic side-channel is focused on. Through this channel are demonstrated two attacks on the keyboard. At first, the method of recognizing is described. The neural network was used for the recognition. Then, the demonstration attacks on the keyboard are described. The first demonstration is an attack in laboratory conditions and the other in terms of household conditions. The thesis describes two attacks from the record, through data recognition by neural networks to evaluate the actual demonstration of attack. The following describes the recommendations for disabling attack. The results are supplemented by graphs and discussed.
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Using Cell Phone As Wireless Mouse
Eliáš, Martin ; Jaroš, Jiří (referee) ; Pospíchal, Petr (advisor)
This bachelor's thesis describes the design and implementation of an application that allows to use a mobile device running the Google Android operating system as a wireless touchpad and keyboard to control a computer running the Linux operating system. It works on the standard client-server network model. The mobile device connects to the computer network via a wireless WiFi network interface. For the development of the individual components were used Java and C++ programming languages. The thesis also deals with the testing of the application and possibilities for its further development.
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Graphical user interface for embedded applications
Bránecký, Peter ; Richter, Miloslav (referee) ; Petyovský, Petr (advisor)
The bachelor work deals with the design and implementation of a graphical user interface for the Raspberry Pi Pico Kit development board. This board is built around the Raspberry Pi Pico platform. Furthermore, the work deals with the processing of user input from keyboard and mouse via the USB interface, generation of image output for the VGA interface on the development board and usage of microSD card for loading and storing data.
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Retrofitting Industrial Computer for Kiosk Application
Bužga, Petr ; Šoustek, Petr (referee) ; Dobrovský, Ladislav (advisor)
Industrial computers are designed to last for many years. This paper deals with the case where a computer was discarded from the laboratory as non-functional and it is desirable to try to revive at least some parts. The thesis first analyzes the possibilities of rebuilding the original Lauer VS386 computer. The use of RaspberryPi is proposed in the thesis. Then thesis proposes a driver for the original matrix keyboard embedded in the front panel of the computer as well as a kiosk application for managing employee attendance to verify the functionality of the rebuild computer.
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Influence of Motor Stereotypes on the Quality of Musical Performance and Musculoskeletal Disorders in Keyboard Players
LECHNER, Jan
Music has long been associated with human society. The positive benefits of performing music on human beings have long been known. Increased attention has been paid to its risks recently. The negative effects of a sedentary lifestyle on the human locomotor system are discussed a lot. Nevertheless, most musicians play sitting while they can stand. The aim of this bachelor thesis was to describe the influence of motor stereotypes on the quality of music performance and development of musculoskeletal pain, and to compare the motor stereotypes of keyboard players during standing and sitting. In the theoretical part the basic knowledge about this topic is summarized. Functional description of the human locomotor system and the influence of music is provided. Both motor stereotypes that can lead to playing-related musculoskeletal disorders and physiological motor patterns are described. Music physiology and musician's medicine are also presented. The practical part of the bachelor's thesis consists of combined research consisting mainly of recording the electromyographic activity of selected muscles during performance in standing and sitting positions. The activity of the following muscles was measured bilaterally: extensor carpi radialis, trapezius descendens, pars lumbalis erectoris spinae and obliquus abdominis externus. The performance quality was evaluated both subjectively and the software analysis of audio recordings was performed. Furthermore, kinesiological examinations were performed on the probands. In addition, an online questionnaire survey was included. Mainly the results of electromyographic measurements favorize slightly the standing position for playing instruments. This work can be used in the clinical practice of physiotherapists and in the musician's medicine. It can also serve music educators and musicians themselves
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Google Android Graffiti
Sipták, Daniel ; Bojar, Ondřej (advisor) ; Spousta, Miroslav (referee)
The present study is dedicated to the design, analysis and implementation of software keyboard on Android OS. The keyboard will use customizable single-stroke letters to represnet input characters. In this paper we analyze possible solutions and propose various algorithms to recognize the stroke and we also test them for their accuracy.
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Google Android Graffiti
Sipták, Daniel ; Bojar, Ondřej (advisor) ; Spousta, Miroslav (referee)
The present study is dedicated to the design, analysis and implementation of software keyboard on Android OS. The keyboard will use customizable single-stroke letters to represnet input characters. In this paper we analyze possible solutions and propose various algorithms to recognize the stroke and we also test them for their accuracy.
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Laboratory tutorials for MC9S08LH microcontrollers
Zedník, Josef ; Petyovský, Petr (referee) ; Macho, Tomáš (advisor)
This work contains basic information about microcontroller MC9S08LH64 and development board TWR-S08LH64. Main task of work was design and implement at least 5 laboratory tasks for microcontroller MC9S08LH64 and development board TWR-S08LH64. This laboratory tasks allow students to learn with this microcontroller from start. Part of this work are solved programs for the tasks.
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Double digitally controllable DC power supply
Kotol, Martin ; Petržela, Jiří (referee) ; Šotner, Roman (advisor)
The award of the thesis is an analysis of the involvement of power supplies in OrCAD.Based on this analysis, the best are selected, power supplies, which are modified on the performance of 2x 0-30V / 0-3A. The connection of power supplies are tested incomputer simulations and proposed the concept of digital control. Digital control power supply is designed by digital potentiometers that are controlled by a microprocessor. The microprocessor is also connected to the measuring unit for measuring the output voltage and current. The power supply is advantageously possibleto connect a keyboard and display for convenient communication. Based on the above proposal is to prototype and test a methodology for resources.Applying the methodology of testing a prototype power source are obtainedmeasurement results are compared with parameters on a computer simulation and verified by digital control.
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