|
|
Complex Insertion of Tutorial System TIMS into Education
Juračka, Jan ; Kacálek, Jan (referee) ; Škorpil, Vladislav (advisor)
This work is getting acquainted with the educational systems Tims in detail from Enoma. It describes basic types of analog and digital modulations, spread spektrum and basics of PCM encoding and decoding. The main emphasis is put on the product TimsBiskit on which is realized the laboratory tasks. Work also include theoretical settings for students, example records and manuals for instructors.
|
|
|
Neural network utilization for etwork traffic predictions
Pavela, Radek ; Mačák, Jaromír (referee) ; Kacálek, Jan (advisor)
In this master’s thesis are discussed static properties of network traffic trace. There are also addressed the possibility of a predication with a focus on neural networks. Specifically, therefore recurrent neural networks. Training data were downloaded from freely accessible on the internet link. This is the captured packej of traffic of LAN network in 2001. They are not the most actual, but it is possible to use them to achieve the objective results of the work. Input data needed to be processed into acceptable form. In the Visual Studio 2005 was created program to aggregate the intensities of these data. The best combining appeared after 100 ms. This was achieved by the input vector, which was divided according to the needs of network training and testing part. The various types of networks operate with the same input data, thereby to make more objective results. In practical terms, it was necessary to verify the two principles. Principle of training and the principle of generalization. The first of the nominated designs require stoking training and verification training by using gradient and mean square error. The second one represents unknown designs application on neural network. It was monitored the response of network to these input data. It can be said that the best model seemed the Layer recurrent neural network (LRN). So, it was a solution developed in this direction, followed by searching the appropriate option of recurrent network and optimal configuration. Found a variant of topology is 10-10-1. It was used the Matlab 7.6, with an extension of Neural Network toolbox 6. The results are processed in the form of graphs and the final appreciation. All successful models and network topologies are on the enclosed CD. However, Neural Network toolbox reported some problems when importing networks. In creating this work wasn’t import of network functions practically used. The network can be imported, but the majority appear to be non-trannin. Unsuccessful models of networks are not presented in this master’s thesis, because it would be make a deterioration of clarity and orientation.
|
|
|
Simple Remote Signalling of PLC Systems
Kacálek, Jan ; Šimek, Václav (referee) ; Tříska, Vít (advisor)
The aim of this thesis is the design and manufacture of hardware and software facilities used for the demonstration of communication with PLC systems. Furthermore, this paper summarizes the possibilities of communication and partially implements the MODBUS protocol via RS485 serial line. The hardware device is fabricated on the PCB and the components commonly available in electronics stores. Includes LCD display and LEDs for status display PLC system. The software application is written in Java and implements the same functionality as the hardware device.
|
|
|
Web communication environment for unregistered users
Švec, Michal ; Kacálek, Jan (referee) ; Polívka, Michal (advisor)
The aim of thesis was to create a functional IM client focused on simplicity of operation without user registration. This thesis deals with different types of IM clients, their development and history. There are also described technologies used for creating web applications. The last part deals with development and creation of web IM client.
|
|
|
Multilayer applications in .NET environment
Palkech, Marek ; Šimek, Milan (referee) ; Kacálek, Jan (advisor)
This thesis represents the Model-View-Controller pattern. It is focused especially at the description of the particular architecture layers principle and its functionality. It deals with the reasons of the three-layer architecture invention and it also deals with the advantages and the disadvantages provided by this pattern. The most frequent implementation of the MVC – the access to the data stored in the database through the web user interface is also described in this chapter. The next part of the thesis is concentrated on .NET Framework platform created from very voluminous, language-neutral library that is basically huge collection of the source codes providing the solution for common programmer’s problems and from the interface used for running up the applications created in .NET environment. The goal of the chapter concering with .NET Framework is to describe its architecture. The thesis also describes the platform invention, various versions of the .NET, the data access technology ADO.NET and the ASP.NET member ObjectDataSource. The chapter describing languages supported by the .NET Framework is focused on the C# language and its versions. The application “Multilayer applications in .NET environment” is the practical implementation of the mentioned technologies and it is described in the last chapter. The application’s architecture with the concentration on the particular Model-View-Controller layers implementation in the form of Microsoft Visual Studio 2005 projects is also described in the thesis. Special attention is paid to each operation over the data stored in the database tables that the application enables the user to execute, as for example data inserting, updating, selecting or deleting. The common business object’s child generation process is also described deep into the details.
|
|
|
Progressive Usage of Neural Networks in Telecommunication
Babnič, Patrik ; Kacálek, Jan (referee) ; Škorpil, Vladislav (advisor)
The main task of the Master Thesis is introduction into network elements in converget networks. Great importance is put on network elements today, that is why priority resolving is crucial. Theorethical part deals with network elements and neuron networks. Neuron networks were analysed from history to present. The main goal was to develop a neuron network topology able to manage a network element. The developed topology consists of four-layered perceptron network with four inputs and one output. The simulation was carried out on MATLAB software. No real data were used in the simulation. All input values were generated by MATLAB software hence it was a simulation.
|
|
|
New technologies for development of web application Web 2.0
Medlín, Dušan ; Kacálek, Jan (referee) ; Kyselý, František (advisor)
The graduate thesis presents an analysis of the Web 2.0 applications developement. It defines the preliminary conditions and describes the technologies used for the creation of these applications, such as the markup languages HTML and XML, style sheet language CSS, tranfortmations language XSLT and scripting language JavaScript. The thesis depicts the security risks and the ways how the application can be protected against the XSS attacks and SQL Injection. Furthermore, it analyses a concept of the system containing features of the Web 2.0 trend, and its implementation in practice. The internet portal enabling all registered users to share information with the others, will be the result. Files can be uploaded, and maps and videos can be inserted into the system.
|
|
|
Network Element with Advanced Control
Zedníček, Petr ; Kacálek, Jan (referee) ; Škorpil, Vladislav (advisor)
The diploma thesis deal with finding and testing neural networks, whose characteristics and parameters suitable for the active management of network element. Solves optimization task priority switching of data units from input to output. Work is focused largely on the use of Hopfield and Kohonen networks and their optimization. Result of this work are two models. The first theory is solved in Matlab, where each comparing the theoretical results of neural networks. The second model is a realistic model of the active element designed in Simulink
|
|
| |
|
|
Temperature scanning with Web site presentation
Svoboda, Vít ; Vyoral, Josef (referee) ; Kacálek, Jan (advisor)
This master’s thesis solves design and realisation of device for temperature value scanning. First chapter introduces reader into basic principles of transmitting data over inetrnet. Next, the conception of whole designed system is described. Third chapter treats about suitable types of hardware to complete the system. Fourth and fifth chapter describes coherent vision of software realisation for values scanning and their storing into database. Last part attends to implement the dynamic web pages.
|
guest ::
RSS feed.