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Meteo weather station
Dvořák, Jiří ; Fajmon, Petr (referee) ; Fedra, Zbyněk (advisor)
The aim of this master‘s thesis is design and construction of home meteo weather station, the choice of applicable temperature, humidity and pressure sensors and characterization of workable device of station. The core of the station is microcontroller ATmega8 used for process data from sensors. Evaluative criteria for choice of sensors will be comunicate interface, accuracy, operating range, current drain and other aspects. Outer transmittin unit measure air temperature and relative humidity. These data are trasmitted by wireless radio module to interior receiving unit, that measure interior temperature and atmospherical pressure and represent measured data to LCD display including dew point. The data are transmitting to the internet and storing in the database. Measured values are available on the web page where you can display the graphs of last measured values.
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Biofeedback and its practical use
Dvořák, Jiří ; Hrozek, Jan (referee) ; Čmiel, Vratislav (advisor)
The aim of this work is describe common methods of biological feedback therapy that is used to treat some psychosomatic diseases. Subsequently, the description is focused on minimal brain dysfunction treatment by the help of EEG biofeedback. Properties and technical requirements for this therapy are concretized. The last part of this thesis is dedicated to the design and realization of practical software tool for EEG biofeedback therapy which is made in LabView 7.1. The M535 acquisition unit and NI USB-6221 measuring device are used for hardware solution.
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A Comparison of Optimization Programmes
Kovářík, Dušan ; Dvořák, Jiří (referee) ; Šeda, Miloš (advisor)
The thesis is focused on various free available software, designed for mathematical optimization. In the first section, the current offerings on the optimization software market are introduced. Further on, the thesis is dealing in details with selected pieces of software products – specifically GAMS, LINGO, QMS web service (Quantitative Methods Software) and Investigator tool, embedded in MS Office Excel application. The closing part, then, is concerned with testing and comparison of above presented software products, employing the performance tests with pre-selected optimization tasks.
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MATLAB/ Global Optimization Toolbox: Solving Optimization Problems
Švihálková, Kateřina ; Dvořák, Jiří (referee) ; Lang, Stanislav (referee) ; Matoušek, Radomil (advisor)
The bachelor thesis deals with basic description of global optimization methods which are implemented in MATLAB environment. First part of this thesis describes two MATLAB's toolboxes -- Optimization Toolbox and Global Optimization Toolbox. This study also describes chosen algorithms from those toolboxes (Genetic Algorithms, Simulated Annealing, Pattern Search and Fminsearch) and describes it's implementation. The last part is focused on the solving of optimization problems. Rosenbrock's function, Rastrigin's function, Traveling Salesman Problem and Stepped Cantilever Beam Design Problem are being solved by methods mentioned above. Reached results of every task are compared to each other and evaluated.
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Searching algorithms
Ďuriš, Martin ; Šeda, Miloš (referee) ; Dvořák, Jiří (advisor)
The thesis describes and analyzes selected searching algorithms for single dimensional array. Algorithms are analyzed mathematically and graphically. Mathematical analysis is based on analysis of average amount of performed comparisons required for the final result and literature review. Graphical analysis is based on multiple examinations of selected searching methods with randomly generated single dimensional arrays. The graphs show dependency of elapsed searching time of successful and unsuccessful searching trial on the size of single dimensional array. The results establish the binary searching algorithm as the fastest one of the selected searching algorithms.
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Sorting algorithms
Schwarz, Jakub ; Smrž, Jaroslav (referee) ; Dvořák, Jiří (advisor)
Enormous volume of data, which has been processed during production operations, requires easy orientation and quick searching. Exact search in real time is essential for success. Correct and quick data-sorting is one of the most important activity during dataprocessing. The goal of this bachelor’s thesis is background research of sorting algorithms. To achieve the goal, basic concepts of sorting theory will be described (determined) and there will be division of sorting algorithms by different criterions. For each algorithm of internal array sorting, sorting principles will be described and analysis of efficiency will be provided. The results will be verified by experimental program.
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Expert systems
Veselovský, Michal ; Konečný, Pavel (referee) ; Dvořák, Jiří (advisor)
Expert systems (ES) are commercially one of the most succesfull use of artificial intelligence (AI) - since eighties of the 20th century. They are often used in medicine, industry, science, trade, banking etc. Expert system is a software using knowledge of human experts for solving very complicated tasks and problems, which would otherwise require participating or consultation of one or more specialists on these issues. This software simulates decision-making of human expert in solving complicated tasks, and tries to reach the most probable result, ideally same as the expert´s opinion. Typical feature of expert systems, differencing it from usual software, is separating of decision making engine (inference engine) and knowledge base – same expert system with different knowledge base may serve for different purposes. This feature is used for creating empty expert systems – shells. Other features, which may not occur at all ES, are ability to make decision with uncertainty, and ability to explain the decision. Goal of this work is to describe basic principles of ES, using freely available information sources, and then describe and analyze resources for creating of these systems, using mainly information from official web sites.
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Control and data structures in programming languages
Janeček, Jan ; Smrž, Jaroslav (referee) ; Dvořák, Jiří (advisor)
The essence of this work is to give basic information about the algorithm development and general pieces of knowledge of the structures in programming languages. These pieces of knowledge are specified for selected programming languages, to comparison is performed and application examples based on specific patterns for corresponding language are presented.
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Manufacturing possibilities of the clamping ring part
Dvořák, Jiří ; Peterková, Eva (referee) ; Císařová, Michaela (advisor)
This bachelor work has been elaborated as a part of my bachelor studies of engineering technology and deals with the problem of choosing an optimal method of producing a particular component part named “Clamping ring”. A fundamental emphasis is placed on the economical aspect of the matter while preserving conditions imposed by the client. The component has originally been manufactured by cutting the intermediate out of a sheet metal using a CO2 laser cutting machine, subsequent lathe work, manual boring and creating a thread. This work offers technological alternatives to the manufacturing of the intermediate as well as the following machining. All options are evaluated with regard to the production expenses and lead to a most economically plausible method of manufacturing the entire component part.
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