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Analýza a návrh systému pro řízení dopravní společnostiBeránek, Jan January 2008 (has links)
No description available.
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Implementace standardu IEEE 802.11ah pro přenos M2M dat / Implementation of the Standard IEEE 802.11ah for Transmitting M2M DataMasár, Marek January 2015 (has links)
This diploma thesis deals with the implementation of standard IEEE 802.11ah into network simulator NS-3. The first part of the diploma thesis describes M2M communication for which the standard IEEE 802.11ah would be suitable. M2M communication is being more and more used in the society, that is why there is an effort to develop a new standard for this type of communication. The thesis contains a description of this standard based on technical specifications brought out by the Task Group ah (TGah). Some changes have been made in NS-3 for the purpose of this thesis in order to support this standard. In the next part there is a created scenario with basic topology in NS-3 with usage of standard IEEE 802.11ah, in which the functionality of the standard is tested. The result of this diploma thesis is a description of the changes which have been made and analysis of the output files from the simulation.
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Redundance v datových sítích / Redundancy in data networksŠoun, Jan January 2010 (has links)
This thesis focuses on redundancy in data networks and on technologies which are used to achieve high availability in network infrastructure. This thesis is based on industry standards published by well-known standardization authorities. One proprietary technology which can effectively replace these standards and simplify the whole network is also presented in more detail. The theoretical part individually describes all such technologies and standards. The practical part deals with an appropriate combination of these technologies and their application in a specific product environment. This work is meant to describe the whole concept of high availability in network infrastructure and should be instrumental in understanding how these technologies are deployed in practice.
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Modelování L2 protokolů zajišťujících bezsmyčkovost / Modelling of L2 Loop-Preventing ProtocolsHrnčiřík, Matej January 2012 (has links)
This thesis informs about currently used technologies, which provide loop protection on data link layer of computer networks. It clarifies issues of Ethernet networks. Chosen protocols are then closely described. There are presented advantages and disadvantages of chosen protocols and they are compared to other technologies. Practical section describes the initial implementation of IS-IS in OMNeT++ environment, which serves as the basic building block of TRILL protocol. An important issue is to verify correctness of implementation.
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Financování dopravní obslužnosti / Financing of transport servicesKUČEROVÁ, Petra January 2017 (has links)
This thesis is occupying with transport services and it's financing. Main goal is appraisal of financial resources for transport services in South Bohemia region. At the beginning, work charakterize transport. It's talking about what role is transport playing in national economy, what is it's meaning and how it's influencing society. Then it's talking about regulation and controlling sphere of transport by transport government policy and shortly describing it's basic strategic documents. Definition of transport services and factors and meanings, which are influencing it, is necessary. In the end theoretical part describing three methods of financing transport services and talking about terms like compensation or provable loss, which are closely related to financing. Practical part is focused on South Bohemia region. It is describing transport services and analyzing financial resources. Public bus transport and regional train transport are solved separately. For analyze were used chosen statistic methods. In the end work is occupying with secondary goal of research, which is suggestion of yet unused method of financing transport services.
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Implementace ethernetového komunikačního rozhraní do obvodu FPGA / Implementation of ethernet communication inteface into FPGA chipSkibik, Petr January 2011 (has links)
The thesis deals with the implementation of Ethernet-based network communication interface into FPGA chip. VHDL programming language is used for description of the hardware. The interface includes the implementation of link-layer Ethernet protocol and network protocols such as IPv4, ARP, ICMP and UDP. The final design allows bi-directional communication on the transport-layer level of TCP/IP model. The designed interface was implemented into Virtex5 FPGA chip on development board ML506 by Xilinx.
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Vliv přenosových parametrů na spotřebu elektrické energie Zigbee zařízení / Impact of Communication Parameters on Energy Consumption of Zigbee DevicesPopelka, Jan January 2013 (has links)
This thesis deals with the energy research and design a simple wireless sensor networks. The data modules with ZigBee wireless communication technology. The main feature of wireless sensor networks is the minimal energy devices at low cost and maximum data reliability. Furthermore, the work describes firmware for communicating nodes with the ability to change parameters of data transmission and thus affect the energy consumption node. Calculations of energy consumption, compared with measured results and discharge characteristics of the battery packs are included in the final chapters of this work.
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Modul digitálního signálového procesoru pro ruční RFID čtečku / Digital Signal Processor for Handheld RFID ReaderBenetka, Miroslav January 2008 (has links)
This diploma thesis deals with design and realization of a module for a digital signal procesor, for handheld RFID reader working in UHF band. It utilises a special chip EM4298 for RFID signals processing. Module is controlled by the microcontroller ATmega32L, which communicates with the PC through USB bus. Settings in EM4298 is made by a service program which processes received identifying data obtained from tags. Source codes for microcontroller are created in AVR Studio 4.13 program. Source codes for microcontroller are created in C++ Builder 6.0 program. Further thing is Desing and realization of analog interface and a UHF transceiver for wireless communication with tags. A Webench program was used for the analog interface design, which is freely available on the internet. For verification of parameters of the analog interface it was used PSpice 10.0 program. The UHF transceiver is build-up with a MAX2903 chip (transmitter) and AD8347 (receiver) and transmitting and receiving antennae.
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Vliv přenosových parametrů na spotřebu elektrické energie Zigbee zařízení / Impact of Communication Parameters on Energy Consumption of Zigbee DevicesPopelka, Jan January 2013 (has links)
This thesis deals with the energy research and design a simple wireless sensor networks. The data modules with ZigBee wireless communication technology. The main feature of wireless sensor networks is the minimal energy devices at low cost and maximum data reliability. Furthermore, the work describes firmware for communicating nodes with the ability to change parameters of data transmission and thus affect the energy consumption node. Calculations of energy consumption, compared with the measured results, the discharge characteristics of the battery packs and lifetime broadcasting node is contained in the final chapters of this work.
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