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Solver of Mathematical Equations for Android
Janičko, Adam ; Herout, Adam (referee) ; Zachariáš, Michal (advisor)
This thesis aims at creating equation solver application for Android platform. The thesis includes graphical user interface (GUI), save and edit options for equations, the actual equation solving and widget for quickly evaluating already stored equations. When creating equations, user is able to use selected mathematical functions, constants and custom variables that user can define right before evaluation. The equation in the standard infix notation inappropriate for further processing is transferred to the prefix notation using modified Shunting Yard algorithm. Final expression is put together once. That means the evaluation is faster, when the values of user-defined variables changes.
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Estimation of pitch period
Matuštík, Daniel ; Tučková, Jana (referee) ; Sigmund, Milan (advisor)
This diploma thesis with estimation of pitch period of the human voice. The paper listed some of the methods for Estimation of pitch period and method for preprocessing and final processing of the signal after application of functions to determine the frequency of the pitch period in graphical user interface.
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Kinetic analysis of signals from gait laboratory.
Benešovská, Veronika ; Mézl, Martin (referee) ; Svozilová, Veronika (advisor)
Gait analysis has an irreplaceable meaning in many various fields. Thanks to the Vicon system, which is used in gait laboratory, the movement of individual body parts can be captured. The purpose of this work is to process data records from gait laboratory, and kinetic analysis in Matlab program. The main target of the bachelor thesis is to compare detected values, which were evaluated by kinetic analysis of the data obtained from tested subject during performing the exercise and creating GUI.
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Software library of basic symmetric and asymmetric primitives of modern cryptography on embedded platforms
Miška, Matěj ; Mlýnek, Petr (referee) ; Lieskovan, Tomáš (advisor)
This master thesis deals with a search of cryptographic primitives for embedded systems, which are tested on Raspberry Pi platforms and the results compared in the subsequent practical part. The content of the research is an explanation of the use of cryptography in information systems, an example of a protocol using cryptography in the energy sector, the selection of cryptographic primitives based on recommendations from security institutions, a description of Raspberry Pi embedded platforms and an introduction of cryptographic libraries providing tools to perform cryptographic operations. The theoretical part of the thesis results in an overview of the information needed to create a test tool. The subsequent practical part deals with the theoretical design of the required tool, the determination of the functions that the tool must have and the way of performing the testing. This is followed by a description of the choice of the programming language and development environment suitable for this work, together with a description of the internal structure of the developed application. The testing parameters are mainly the computational, memory and time requirements of the cryptographic primitives on the system. The paper concludes with methods of running and controlling the application, possible presentation of the measured results, the actual results of testing the selected embedded platforms and a discussion of these results.
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Vibrodiagnostics of electrical machines
Boháček, Daniel ; Vítek, Ondřej (referee) ; Janda, Marcel (advisor)
This thesis deals with methods of vibration analysis in electric rotating machines. From the beginning, it is necessary to explain the basic concepts and introduce the issue of vibration. Next time, the work is focused on sources of vibration in electrical machines. Defects on electric rotating machines causing vibrations are described. Sensing is performed using sensors of deflection, speed and acceleration. The measured signal needs to be adjusted and filters, approximations and sampling will cover this in the next chapter. The main objective is the methods of analysis, which include the best known in the field of frequency analysis (FFT) and the envelope method in the time domain. This includes other methods such as Kurtosis factor, Crest factor, etc. There is also a basic block diagram for measuring vibrations. This block diagram is programmed and has a graphical user interface. The last part is an evaluation of the measured data of the engines.
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ECG Signal Compression Based on Wavelet Transform
Ondra, Josef ; Hrubeš, Jan (referee) ; Kozumplík, Jiří (advisor)
Signal compression is daily-used tool for memory capacities reduction and for fast data communication. Methods based on wavelet transform seem to be very effective nowadays. Signal decomposition with a suitable bank filters following with coefficients quantization represents one of the available technique. After packing quantized coefficients into one sequence, run length coding together with Huffman coding are implemented. This thesis focuses on compression effectiveness for the different wavelet transform and quantization settings.
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Vibrodiagnostics of electrical machines
Boháček, Daniel ; Vítek, Ondřej (referee) ; Janda, Marcel (advisor)
This thesis deals with methods of vibration analysis in electric rotating machines. From the beginning, it is necessary to explain the basic concepts and introduce the issue of vibration. Next time, the work is focused on sources of vibration in electrical machines. Defects on electric rotating machines causing vibrations are described. Sensing is performed using sensors of deflection, speed and acceleration. The measured signal needs to be adjusted and filters, approximations and sampling will cover this in the next chapter. The main objective is the methods of analysis, which include the best known in the field of frequency analysis (FFT) and the envelope method in the time domain. This includes other methods such as Kurtosis factor, Crest factor, etc. There is also a basic block diagram for measuring vibrations. This block diagram is programmed and has a graphical user interface. The last part is an evaluation of the measured data of the engines.
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Software library of basic symmetric and asymmetric primitives of modern cryptography on embedded platforms
Miška, Matěj ; Mlýnek, Petr (referee) ; Lieskovan, Tomáš (advisor)
This master thesis deals with a search of cryptographic primitives for embedded systems, which are tested on Raspberry Pi platforms and the results compared in the subsequent practical part. The content of the research is an explanation of the use of cryptography in information systems, an example of a protocol using cryptography in the energy sector, the selection of cryptographic primitives based on recommendations from security institutions, a description of Raspberry Pi embedded platforms and an introduction of cryptographic libraries providing tools to perform cryptographic operations. The theoretical part of the thesis results in an overview of the information needed to create a test tool. The subsequent practical part deals with the theoretical design of the required tool, the determination of the functions that the tool must have and the way of performing the testing. This is followed by a description of the choice of the programming language and development environment suitable for this work, together with a description of the internal structure of the developed application. The testing parameters are mainly the computational, memory and time requirements of the cryptographic primitives on the system. The paper concludes with methods of running and controlling the application, possible presentation of the measured results, the actual results of testing the selected embedded platforms and a discussion of these results.
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Kinetic analysis of signals from gait laboratory.
Benešovská, Veronika ; Mézl, Martin (referee) ; Svozilová, Veronika (advisor)
Gait analysis has an irreplaceable meaning in many various fields. Thanks to the Vicon system, which is used in gait laboratory, the movement of individual body parts can be captured. The purpose of this work is to process data records from gait laboratory, and kinetic analysis in Matlab program. The main target of the bachelor thesis is to compare detected values, which were evaluated by kinetic analysis of the data obtained from tested subject during performing the exercise and creating GUI.
|
|
|
Solver of Mathematical Equations for Android
Janičko, Adam ; Herout, Adam (referee) ; Zachariáš, Michal (advisor)
This thesis aims at creating equation solver application for Android platform. The thesis includes graphical user interface (GUI), save and edit options for equations, the actual equation solving and widget for quickly evaluating already stored equations. When creating equations, user is able to use selected mathematical functions, constants and custom variables that user can define right before evaluation. The equation in the standard infix notation inappropriate for further processing is transferred to the prefix notation using modified Shunting Yard algorithm. Final expression is put together once. That means the evaluation is faster, when the values of user-defined variables changes.
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