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Microelectronics Time-Space Authentication Techniques
Jaroš, David ; Burda, Karel (referee) ; Sýkora, Jiří (referee) ; Kuchta, Radek (advisor)
This dissertation work focusses on using information about the location of the user during the authentication process on computer networks. With the growth of mobile computer devices over the last two decades the physical location of users is becoming one of the main issues for access management. This work researches existing solutions which are divided in to two groups related to the source of location information (SATNAV systems for example GPS and based on communication with active infrastructure such as GSM, Wi-Fi). This work shows the methodology for evaluating authentication data which use the principle of fuzzy logic. In comparison with binary logic it is possible to evaluate authentication data accurately. As a result of the authentication process the information is of a higher value, which can be taken into account when setting the levels of user privileges. An important aspect of working with location information is that the user is located in the same place and from where they are asking for access to the system. Solving this question could be linking user biometrics for example finger prints. This principle is used in two types of microelectronic authentication terminals which were developed in conjunction with this work. The first type of terminal uses a SATNAV receiver and an ISM wireless communication module as a source of location information. On the first type of authentication terminal newly developed authentication techniques were tested. The users biometrics are checked by finger print sensor with embedded processing. In the second type authentication terminal a Wi-Fi and GSM module were added for location purposes. In the conclusion of this dissertation the testing methodology of the data authorization and evaluation process of the second type of microelectronic authentication terminal is shown. This confirms the practicality of the suggested methodology and the time-space information in the authentication process.
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Preventive system against icing of overhead wires
Jaroš, David ; Omasta, Milan (referee) ; Galas, Radovan (advisor)
This bachelor thesis deals with protection of overhead lines from icing with a focus on chemical treatment. The introductory part of the work focuses on the description of the overhead line and icing. The next part presents methods of prevention against icing on overhead lines. Various anti-icing systems and fluids are described here. The last part focuses on the result of this thesis and analyses the acquired knowledge.
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Wireless sensor of temperature and relative humidity
Chlad, Miloslav ; Jaroš, David (referee) ; Macháň, Ladislav (advisor)
Bachelor thesis deals in general with humidity and possibility of its measurement. As are psychometric method, hygrometric method and dew point method. The next chapter is an overview of sensors available on the Czech market, along with a brief description of their attributes. Furthermore, the thesis deals with hardware and software design of wireless temperature and relative humidity measuring unit.
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Onboard computer for status and functional parameters evaluation of internal-combustion engine
Jaroš, David ; Legát, Pavel (referee) ; Kuchta, Radek (advisor)
This thesis deals with design and realization of the onboard computer for evaluating functional parameters and status of the gas engine. Designed solution is consisted of two main parts. The first part is measuring unit whose obtains actual information on engine especially consumption of fuel, rotate per minutes and temperature of engine head. The second part of the solution is formed by pocket computer with appropriate software. The application for the pocket computer processes data from the measuring unit and from GPS receiver, which is integrated in pocket computer. Wireless bluetooth technology is used for data transfer between measuring unit and pocket computer. The application in pocket computer displays and records each of obtained and computed data.
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Universal module for sensoric data interchange via WiFi
Vitek, Juraj ; Jaroš, David (referee) ; Macháň, Ladislav (advisor)
This work describes the problems of data transmission via wireless networks. We discuss the theoretical background of computer networks, the base transmission protocols and their use. We also describe standards and mechanisms for wireless transmission and described in detail the procedure of data transfer via WiFi network. In practical part we describe prototype and the basic functions of the prototype its components.
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Security system for family house
Sohr, Martin ; Macháň, Ladislav (referee) ; Jaroš, David (advisor)
Family house, security system, wireless communication, IQRF, RSA, central control unit, SPI, I2C, glass break sensors, motion sensors, magnetic contact sensors, graphic displey, LCD displey, microcontroler, SIM900, 24FJ256GB106, EA DOGM106, eDIPTFT43-A.
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New residential building Znojmo, Louka - preparation and organization of construction
Jaroš, David ; Hanzelková, Martina (referee) ; Šlanhof, Jiří (advisor)
This diploma thesis is dealing with the preparation and construction of the apartment building in Znojmo. Thesis includes the technical report, the plan of the building site with some extra descriptions, time and financial plan of the building site, realization sketch of the major technological periods, equipment of the building site, project of the construction machines, timetable, plan of the assurance of the material, technological regulation, controlling and probationary plan of the quality, time and financial collation.
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