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Possibilities of Using GPS when Analysing Road Accidents
Jokešová, Markéta ; Semela, Marek (referee) ; Panáček, Vladimír (advisor)
Diploma thesis deals with the possibilities of using GPS when analysing road accidents. The history and structure of U.S. global positioning system, Russian GLONASS system and European Galileo system are described. GPS receivers are sorted out by the possibility of use. The thesis deals with the methods of refinement GPS and how the vehicles can be monitored using GPS. In the practical part of this diploma thesis measurements with several types of navigations were made. And a comparison of accuracy of measured data with the real situation where the car was found at the moment of measuring followed and how fast was gone.
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Vehicle Navigation Systems
Mišinger, Lukáš ; Janda, Marcel (referee) ; Hájek, Vítězslav (advisor)
This bachelor thesis consider contemporary navigation systems or systems that will be at work very soon. This work includes main parting of satellite navigation systems and their functions and charakteristics, board units of navigation systems and their usage in vehicles. Next part is about another usage in transportation jointed sevices. Last part is about suggestion for laboratory practise with specialization on navigation systems for lessons of subject BAEB (Vehicle elektrotechnics).
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VSAT Terminal Model
Kudlička, Miroslav ; Ondráš, Radek (referee) ; Baran, Ondřej (advisor)
This work deals with the description of the communication using the VSAT satellite network. A used network topology, frequency bands, satellite orbits and also an access technology are defined. The next part is focused on the VSAT terminal, where the block diagram is shown. A model of the indoor unit IDU is designed in the system background of Ansoft Designer. Individual parts of the system model are analyzed in terms of input variables. The results of the simulation are shown. The curves of BER before Viterbi decoding and after Viterbi decoding are shown too.
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Synchronization of the time using the GPS
Švábeník, Petr ; Šmíd, Petr (referee) ; Vyskočil, Pavel (advisor)
This thesis discusses about using the worldwide satellite system GPS for time and frequency synchronization. This thesis presents study about basic principles of the GPS system, its segments and ways of using this system. Some GPS receivers suitable for receiving the time marks (pulses) used for time synchronization are described. Thesis contents designing of the circuit that will receive time marks and it will digitalize and record external signal and send it with precision time information to PC for displaying and post processing. Thesis also discusses about both hardware and software development of the synchronization module and software used in PC.
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Linear Transponder Model
Pospíšil, Miroslav ; Ondráš, Radek (referee) ; Baran, Ondřej (advisor)
This master’s thesis deals with satellite transponders. Firstly, satellite communication basics, satellite services definitions, frequency bands and satellite orbits are investigated. The second chapter forms the satellite transponders analysis. The transparent transponder and the transponder with on-board processing are described. Finally, a transponder model is designed and simulated in communication chain.
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Folding mechanism for mobile satellite antenna
Buchta, Tomáš ; Koutecký, Tomáš (referee) ; Brandejs, Jan (advisor)
The aim of this bachelor thesis is the design and construction of a manipulating mechanism for a satellite antenna, mainly for use on vehicles that will be able to work even in adverse weather conditions. The design and manufacturing of the device should provide sufficient positioning accuracy and toughness of the structure. Since this is a prototype therefore the design solutions should be chosen with regard to simplicity of production.
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GPS data usability in mobile robot navigation problem
Novák, Pavel ; Věchet, Stanislav (referee) ; Krejsa, Jiří (advisor)
This work is focused on problems of the GPS/DGPS receiver precision used by mobile robot for navigation in outdoor environment. The first part deals with theoretical analysis of GPS, description of it´s functions, errors and their influence on measurements accuracy. Second part deals with practical measurements performed at two locations with different types of obstacles restricting the view to the sky and using the refining methods of measuring the DGPS or so-called differential GPS. The last part of study presents the measured results and its analysis.
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Progressive Fleet tracking systems
Chernutskiy, Stanislav ; Rathouský, Bedřich (advisor) ; Mervart, Michal (referee)
This bachelor thesis is focused on the importance of vehicle tracking as a part of Fleet management for company's success. The theoretical part contains analysis of positioning systems GPS and GLONASS, describes the structure and principles of its functioning. The practical part contains implementation of Fleet management system into Russian company"Cech č. 1", Ltd. Practical part consists of information gained from internal sources of the company.
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Red Hat Enterprise Linux
GARABIK, Bohumil
The paper introduces Red Hat company and its products. Basic concepts, e. g. Linux, distributions, clusters, high availability and several other concepts on this issue are explained. The differences between commercial and non-commercial Linux distributions are described further. Empirical part of the paper deals with the installation, configuration and the use of several key products of Red Hat company. The comparison of certain products and their characteristics with competitive products is also included in the paper.
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Satellite navigation system
Antoš, Vladimír ; Zelený, Lubomír (advisor) ; Těšík, Radek (referee)
Satellite navigation is quickly developing area of industry, which allows usage of navigation services. American GPS is the most popular systém. It consists of 31 satellites on 6 orbits. The emitted signal is effected by physical rules of the Earth. GPS is not the only one systém. Compretion for american system is consists of 3 different system: GLONASS, COMPASS, GALLILEO. There are also non-global systéme in the world. These systems are providing more accurate services or enable to their owner be independent at specific place by using of geostacionary satellites. Next topic is practical usage. Navigation is mostly used in transportation. Fron water up to sky, GPS is irreplaceable in each type of transportation. Beyond positioning and tining GPS can help to save a lot of money in business.
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