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Distributed P2P Data Backup System
Mészáros, István ; Herout, Adam (referee) ; Szőke, Igor (advisor)
Tato diplomová práce představuje model a prototyp kooperativního distributivního systému zálohování dat založeném na P2P komunikační síti. Návrh systému umožňuje uživatelům přispět svým lokálním volným místem na disku do systému výměnou za spolehlivé úložiště jejich dat u jiných uživatelů. Představené řešení se snaží splnit požadavky uživatelů na ukládání dat, zároveň však také řeší, jak se vypořádat s mírou nepředvídatelnosti uživatelů ohledně poskytování volného místa. To je prováděno dvěma způsoby - využitím Reed - Solomon kódů a zároveň také tím, že poskytuje možnost nastavení parametrů dostupnosti. Jedním z těchto parametrů je časový rozvrh, který značí, kdy uživatel může nabídnout předvídatelný přínos do systému. Druhý parametr se týká spolehlivosti konkrétního uživatele v rámci jeho slíbeného časového úseku. Systém je schopen najít synchronizaci ukládaných dat na základě těchto parametrů. Práce se zaměřuje rovněž na řešení zabezpečení systému proti širšímu spektru možných útoků. Hlavním cílem je publikovat koncept a prototyp. Jelikož se jedná o relativně nové řešení, je důležitá také zpětná vazba od široké veřejnosti, která může produkt používat. Právě jejich komentáře a připomínky jsou podnětem pro další vývoj systému.
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Database Archive of Image Medical Data
Sára, Vítězslav ; Chmelař, Petr (referee) ; Kršek, Přemysl (advisor)
This Thesis deals with the problems of medical image data management. It analyzes a metadata extraction problem from medical format DICOM and their efficient saving. System is designed as a client-server application. System provides an interface for DICOM data storing, interface for searching, data editing and exporting. System cooperatives with the collaborative system VCE. Implementation was carried out in C++ and PHP language with support of SQLite and MySQL database.
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INTEGRATED SOLUTION OF DIAGNOSTICS OF PRODUCTION EQUIPMENT IN THE CZECH ENERGY INDUSTRY
Cvešpr, Pavel ; Szabó,, Radek (referee) ; Kratochvíl, Petr (referee) ; Hammer, Miloš (advisor)
This dissertation thesis is concerned with the diagnostics of the main production facilities in Czech power engineering with a focus on its integrating role in the process of gaining, saving and processing information for the purpose of evaluating the technical state of the operated facilities and the plan to manage their lifetime. It is divided into two parts, theoretical and practical. The theoretical part presents the conclusions of examination of the needs of involved workers in the areas of diagnostics, maintenance and expert assessment of technical state of equipment. These conclusions were formulated based on the completed analysis of the current status ("as - is" analysis) of performing diagnostics of systems operated in the technological units of both nuclear and classical power engineering. The monitored equipment involves electrical installations and machinery, steel and building constructions, measuring instruments and vibrodiagnostics. Based on the analysis results, process diagrams are created for the solution of partial tasks. The analysis of the proposed solution for problems in question ("should - be" analysis) includes a design of the fundamental scheme of the data model for a software solution and a design of data flows from the individual data sources. The following part presents an application layer which includes a detailed description of major functionalities. Further, important activities and procedures are described that are necessary to evaluate the technical state of equipment. The practical part deals with the implementation of the LTO suite software product in the environment of power engineering in Czech Republic, specifically within ČEZ, a.s.. The LTO suite functionality is demonstrated in this part of the thesis by screens recorded within the LTO suite individual modules, which work above the actual data. It starts with the initial screen for configuration of displayed data, continues to present examples of the equipment register, planning, processing and saving of information collected through the diagnostic activities over to the module of integration – analytical layer, which is designed for evaluation of the technical state of equipment at the entered date with a reporting output. The thesis also includes the chapters on "Aims of the Study" and "Conclusion". The key chapter presents the "Benefits of the Study", whose overview describes the original results of the research as well as those applicable also outside the power engineering area.
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Battery powered datalogger with CPU
Andrýs, Jiří ; Beran, Jan (referee) ; Bradáč, Zdeněk (advisor)
In this design are mentioned processes of power consumption reduction of battery-powered devices.Execution of a project is software SPI for MMC card and file system FAT16 without extension of VFAT (Virtual File Allocation Table) – LFN (Long File Names). Hardware design consists of boost power supply, linear stabilizer, external RTC (Real Time Clock), IRQ low power modul, interface for MMC (Multi Media Card) and circuits for RS-232, RS-485. There is either a design of analog measuring interface.
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Electronic data storage system
Valkovič, Marek ; Lattenberg, Ivo (referee) ; Stančík, Peter (advisor)
The work presents the design and real world implementation of an information system serving as an electronic disk with web based access and administration. The task is being solved using the PHP scripting language and MySQL relational database management system. The study examines PHP and SQL databases, states basic facts and explains how they are connected to create one single complex system. Issues of an internet based payment system are being considered too. The proposed system features complete file management capabilities. Separate access rights can be set for individual users. The administrator of the application can display several interesting statistics. Results of the work are being demonstrated on the final web application.
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Big Data, their storage and options of exploitation
Macek, Jáchym ; Chlapek, Dušan (advisor) ; Kučera, Jan (referee)
The content of this bachelor's thesis is to analyze work with data especially with large-volume unstructured data, thus Big Data. The thesis is retrieval and contents informational survey based on questionnaires and interviews. The aim is to evaluate and approximate Big Data theme, their storage, tools for their management and opportunities of its exploitation to the reader from technological and business point of view. The objective for the practical part is a survey. The thesis is divided in to three parts. The first part defines the concept, gives closer look at the issue and is dedicated to open and linked data. The second part deals with the question of storage and opportunities of subsequent exploitation of stored data, tools and technologies for Big Data management. Further, there is evaluation of the advantages and disadvantages and comparison of the Hadoop technologies. In the third part the survey of Big Data issue is published. I use tools of questionnaires and interviews for acquiring information from students and experts. Furthermore, it describes current trends, problems and offers solution from the field.
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Comparison of system capabilities of Teradata and Oracle
Mimra, Jonáš ; Palovská, Helena (advisor) ; Vedral, Jakub (referee)
In my work, I deal with two database systems, Oracle and Teradata. I compare differences in data storage and database architecture. My work examines the performance of both systems installed on one operating system. The analysis was based on the speed of data import and response on SQL queries such as SELECT, SELECT with JOIN and UPDATE. Based on the results of my measurements recommend which of these two systems suits best OLAP and which OLTP database data storage technology.
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Data security of the fire department of the South Bohemian region
REMIÁŠ, František
The thesis is focused on work with the data and information for the Fire and Rescue Service of South Bohemia Region, and its goal is to determine whether the data and information faced by members and employees of Fire and Rescue Service in their work are treated in accordance with applicable legislation, and whether they are adequately secured and protected against misuse and loss. Based on the organizational structure of qualitative research are mapped in detail the security and protection of data on individual departments and workplaces. These information compile risk areas for different types of data and due to this is prepared the risk map for these areas. Due to the findings the specific measures are designed to mitigate the risks for certain fields of work with data and information. The first part explains the basic concepts and definitions of words data, information and knowledge. The next section discusses the historical context of the mapped datastorage and handling of data in paper and electronic form, including the development of information systemsand technologies. Further are described the possible threats by varius effects on these data. Another chapter focuseson describing the current state ofwork with data and description oftechnologies used to it at the Fire and Rescue Service. Afterwards is elaborated an organizational structure focused on work with data. In following part the risk map is prepared for each area and proposesseveral solutions and particular measures to reducethe greatest of the resultingrisks. The benefit of this work is the implementation of several specific solutions to eliminate and reduce the threat of risks when working with dataat Fire and Rescue Service of South Bohemia Region, and several otherproposal measures and stepsfor additional security and data protection.
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Design of nrmetwork infrastructure, ICT and application platfo for a small company.
Hurych, Tomáš ; Palovský, Radomír (advisor) ; Pinkas, Otakar (referee)
This bachelor work deals with the design of a network infrastructure for a small company. Designing a network infrastructure consists of a link between two workplaces using a wireless connection and a realization of active and passive elements on both places of work. The thesis further looks into a design and realization of an application server in the MS Windows Server environment and a data storage running on a Linux kernel. That was achieved by the analysis of possible solutions of customer requirements, selection and putting the best of them into practice. The main contribution of this work is the design of a secure, functional and an affordable solution for a small company. The work is divided into three logical aggregates. At first it analyzes the current situation of the company and the specification of its requirements. It also discusses theoretical solutions for given requirements and last but not least it includes a suggestion for their solution.
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Data storage systems and supply of their outsourcing services
Staněk, Pavel ; Kacerovský, Jiří (advisor) ; Tlustý, Zdeněk (referee)
Ukládání a správě dat je v současnosti věnována velká pozornost. Práce se pokouší čtenáři podat ucelený přehled o této oblasti informačních technologií ? tedy datových úložištích pro firmy. V úvodu nastiňuje současné nároky kladené na datová úložiště a důvody růstu poptávky po nich. Dále pokračuje popisem technologií využívaných pro ukládání dat a jejich srovnáním nejen z technické ale i z ekonomické stránky. V předposlední kapitole nabízí náhled na situaci na trhu outsourcingu. Dále popisuje formy a služby nabízené v rámci outsourcingu datových úložišť. V závěru nabízí práce pohled na předpokládaný vývoj a prosazení popisovaných technologií s ohledem na konkrétní podnikový sektor.
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