Data Backup and Data Storages

This diploma thesis is about data backup and following data archiving in real environment of concrete IT company engaged in software development. Theoretical knowledge concerning the area of data backup and data storages is described here. It also describes the current situation of data backup and problems with the current solution. There are suggestions for improving the current situation, including economic evaluation, to achieve efficient and most importantly secure data backup

Model train controlled by microcomputer

The paper focuses on the controlling model trains by the camera. The paper deals with the analysis, design, and implementation of the embedded system for modeling track management. The main part is image processing in real-time with the following evaluation. Designed and realized product contains model railroad with sensor-controlled by an open-source platform called Arduino Mega 2560 and microcomputer Raspberry Pi 3 Model B. Programming language Wiring and scripting language Python are used for final system development. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.Univerzita Tomáše Bati ve Zlíně: IGA/FAI/2022/00

Data Backup and Data Storages

This diploma thesis is about data backup and following data archiving in real environment of concrete IT company engaged in software development. Theoretical knowledge concerning the area of data backup and data storages is described here. It also describes the current situation of data backup and problems with the current solution. There are suggestions for improving the current situation, including economic evaluation, to achieve efficient and most importantly secure data backup

Model Train Controlled by Microcomputer

Tato práce se zabývá řízením modelového kolejiště pomocí kamery. Věnuje se analýze, návrhu a realizaci vestavěného systému. Jedná se o zpracování obrazu v reálném čase a jeho následného vyhodnocení. Navržený a realizovaný produkt tvoří kolejiště se senzorem, k jejichž řízení je použita open-source platforma Arduino Mega 2560 a mikropočítač Raspberry Pi 3 model B. Výsledný systém byl implementován v programovacím jazyku Wiring a ve skriptovacím jazyce Python.This bachelor thesis is about controlling model trains by camera. It deals with the analysis, design and implementation of the embedded system for modeling track management. The main part is image processing in real-time and following evaluation. Designed and realized product contains model railroad with sensor, which are controlled by open-source platform called Arduino Mega 2560 and microcomputer Rapsberry Pi 3 model B. Final system was implemented in programming language Wiring and scripting language Python.

Electromagnetic noise as entropy source for cryptographic system

This paper presents a system for gathering electromagnetic noise to extract surrounding entropy at 430 MHz. The uniqueness of electromagnetic noise depends on geographical location, time, used technology, and a plethora of other variables. The proposed system consisting of telescopic whip antenna and software defined radio HackRF One takes advantage of the said fact to extract entropy and transform it into a random number which could be then used in cryptography. Said system is supposed to be low-cost and made from generally available equipment to ensure usability for the general population. Three experiments were devised to transform received noise into random numbers. The first experiment extracts entropy from the time domain by averaging the magnitude of the signal and comparing it to magnitude. The second experiment uses Fast Fourier Transformation to obtain the frequency composition of the received signal and extracts entropy out of magnitude of different frequencies. The last experiment combines the two through logical operation XOR to gain the random number. Obtained random numbers are then tested for randomness by checking entropy, monobit test from NIST standard, and proportion of logic ones and zeroes in the sequence. © 2022 IEEE.Univerzita Tomáše Bati ve Zlíně: IGA/FAI/2022/00

Przegląd zastosowań nanoanten

Currently, nanoantennas represent significant potential for the future, and the scientific community is putting a lot of effort into developing these devices. Many publications deal with different types such as plasmonic, dielectric, or hybrid, and structures of nanoantennas such as dipole, Yagi-Uda, and others; therefore, the idea arose to create an article summarizing the possibilities of using these devices in the last five years. The paper focuses on a brief description of currently investigated types of antennas, especially in the scientific field, and lists the most common applications of nanoantennas. © 2023 Wydawnictwo SIGMA-NOT. All rights reserved

Metal-coated building blocks as a tool for creating electromagnetic shielding

Electromagnetic compatibility has become an integral part of the development process of any electronic or electrical product; however, maintaining a balance between radiation and susceptibility is not a simple task. When solving problems with EMC, financial and time costs arise, i.e., undesirable phenomena that EMC Risk-based management tries to prevent. This article focuses on a specific type of 3D shielding that can protect and envelop a product. Creating a shielding enclosure can be complex, especially considering atypical user requirements, such as material transparency and roundness. These requirements lead to unique shapes of electromagnetic enclosures, for which no specific procedures exist. Therefore, an idea was born based on simple cubes that could be assembled into arbitrary shapes with the help of metaheuristic algorithms and thereby help developers in their efforts. The principle is based on simply joining cubes of predefined form into the desired structure. To make the process more efficient, the application of artificial intelligence is expected, which will be able to propose a solution for a user-defined design based on experience and habits. © 2023 IEEE

Evolutionary algorithms as a tool for shielding design

The paper deals with the shielding enclosure design using evolutionary algorithms without predetermined conditions. The designed shield consists of an array of elements that rep-resent conductive or non-conductive parts. The expected output is to design a shield with sufficient balance between shielding effectiveness and transparency in systems that need an optical line of sight. The wide frequency transparent shielding design is a complex task that researchers so far mostly solved by composite polymers. The authors use a different approach using traditional conductive material and element folding technology. Element assembly is performed by an evolutionary algorithm that decides the properties of the material used and creates the optimal structure to achieve the desired results. The paper describes the design concept for planar shielding with metaheuristics and the preliminary results. © 2022 IEEE.CZ.02.2.69/0.0/0.0/16028/0006243; Univerzita Tomáše Bati ve Zlíně: IGA/CebiaTech/2022/004, IGA/FAI/2022/00