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Stopwatch for measuring of sports events
Tajč, Martin ; Petržela, Jiří (referee) ; Hruboš, Zdeněk (advisor)
The aim of this bachelor work is the construction of the electronic stop-watch for measurement at sports events. This stop-watch is primary designed for use at firefighters competitions. The first part of the work is focused on a flowchart of the stop-watch and an analysis of its parts. Some alternative methods, which could be used during the construction, are compared. In the following part, there is an algorithm for the microprocessor applied in it described and features of programming languages are briefly compared. Next in the text, there are a detailed user manual as well as a manual for executing of the display panel. In the supplement, particular electronic schematics and printed wiring boards are included.
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Demonstration Kit for Keeloq Technology
Fujdiak, Radek ; Burda, Karel (referee) ; Strašil, Ivo (advisor)
Bachelor thesis deals with the design and create of simulation environment for KeeLoq security technology in both the hardware and software point of view. In this thesis, there are mentioned actual security methods and a method of Rolling code, specifically KeeLoq technology, is desired.
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Raster Image Data Transfers in FPGA
Musil, Martin ; Kadlček, Filip (referee) ; Zemčík, Pavel (advisor)
This work deals with the design and implementation of high-speed communication interfaces into FPGA chip and their utilizing for image transmission and processing. In the implementation part has been created PCI Express endpoint device, which provides data transfers between the FPGA chip and computer RAM memory. As a source of image data for further processing was connected the Unicam M621 camera throught the Ethernet interface to FPGA chip. The project was implemented on the Xilinx SP605 development board. Using both of the the interfaces were demonstrated on the application of edge detection using Sobel operator. The PCI Express endpoint device driver for the Linux operating system and a simple application interface in C language was also created within this project.
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Current possibilities of data communication via the power network
Jedlička, Tomáš ; Mišurec, Jiří (referee) ; Mlýnek, Petr (advisor)
This thesis is focused on processing, summary information about PLC commnunication and analyzing present issue of data transfer via powerline grids. Teoretic and technical information about PLC communication, advantages, disadvantages, kinds of PLC communication depending on used frequency ranges and also about used modulation techniques are processed in the first part of the thesis. The second part of thesis is focused on analysis information about choice types of modems and companies, which are oriented on PLC technology. Measurements results of broadband PLC communication are evaluated in the third part of thesis with opportunity to extend and modification it. Laboratory measurement of narrowband PLC communication is processed and focused in this part on transmission speed and spectrum of signal. Results of measurement in company ModemTec are summarized in the end of thesis.
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Broadband services over power lines
Svoboda, Jan ; Martinásek, Zdeněk (referee) ; Stančík, Peter (advisor)
The Bachelor´s thesis is intend on assembly of basic informations from area of PLC systems. It envisages the modern problems in area of communication on the energy supply networks. By the aim is provide compact informations about particular areas of usage PLC systems – both in a household, an automatic exercises and in a possibilities of broadband. The first part of thesis includes the theoretical informations about PLC network. The second part considers by testing of basic parameters PLC network. Of all the made measurements are draw conclusions and valorize the usability of metering devices.
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Terminal for testing of data communication of public transport vehicles
Fiala, Michal ; Holek, Radovan (referee) ; Macho, Tomáš (advisor)
This term paper deals with subject of wireless communication of city rail transport cars. In this paper are described individual modules for transmission and receiving of data containing communication between city rail transport cars and measures of siding switches. Then there are discussed possibilities of design of system for testing functionality of transmitting and receiving modules and the system is consequently designed. There are also described communication principles and protocol used for wireless communication and MODBUS protocol used for communication over RS-485 serial line. In the end was the system manufactured, completed and equipped with necessary software.
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Data transmission in mobile networks
Bílek, Petr ; Molnár, Karol (referee) ; Havelka, Dušan (advisor)
The Bachelor’s thesis deals with mapping and usage of mobile networks of data transfers. It describes every particular generation of networks and technologies that they can use. This thesis is divided into two main parts, theological and practical. In the first part, the technologies of the second and third generation currently used for data transfer in mobile networks are described there. This concerns especially GPRS, EDGE and UMTS services. The thesis focuses on modulations used for these technologies, together with the coding and bit rates possible. It compares their advantages and disadvantages and presents their utilization among national operators. It also tries to sketch out the way the data services of mobile networks will proceed. The second part of the thesis is also divided into two parts. The first one is the simulation of the UMTS network with the assistance of the OPNET Modeller 14.5 environment. In this case, the thesis aims at two important characteristics - such as the dependence on the bit rate and distance of the primary station, and dependence on the bit rate and total load of the whole network. Both characteristics are observed mainly because of the bit rate and power characteristics. It describes objects and funcions of the OPNET environment. The next part in the practical section is the factual measurement of the Internet 4G service, provided by T-Mobile operator. The thesis focuses here on the presentation of the outcomes which were accomplished by the practical measurement of that service. The end of this thesis is dedicated to the comparasion of simulated outcomes with the outcomes practically measured, and to the conclusion of the results emerged from them.
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USB communication protocol analysis
Zošiak, Dušan ; Fujcik, Lukáš (referee) ; Šteffan, Pavel (advisor)
Tato práce je zaměřena na zpracování a analýzu USB komunikačního protokolu a implementace jeho jednotlivých částí do FPGA obvodu s využitím programovacího jazyka VHDL. Ve finální podobě by měla práce představovat souhrnný a ucelený dokument popisující principy USB rozhraní a jeho komunikace doplněných praktickým návrhem v jazyce VHDL, který by byl schopen převést data do USB.
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Data transfer in automation production
Konečný, Michael ; Smrž, Jaroslav (referee) ; Lacko, Branislav (advisor)
The aim of this work is to briefly describe main problems of data transfer in automation production and then to descfibe a chosen problematic case and recommend its solution. As the problematic case was chosen the request of Indet Safety Systems, a. s. to come up with a solution that would allow storing and retro-analysis of data measured on produced parts by one of their automatic assembly lines. This case is thoroughly described and a complete solution is proposed.
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