National Repository of Grey Literature 27 records found  previous11 - 20next  jump to record: Search took 0.01 seconds. 
Modem -repeater for narrow band technology of PLC
Novák, Michal ; Mlýnek, Petr (referee) ; Mišurec, Jiří (advisor)
This semestral thesis focuses on the circuit design of the repeater for PLC communication in order to achieve greater distance in communication. It can also serve as a bridge for a separate modem device power grid. In this work we discuss the involvement of individual assembly parts repeater and proposed method of connection.
Energy meter with PLC communication
Szalbot, Michal ; Mlýnek, Petr (referee) ; Koutný, Martin (advisor)
Our thesis is about development of equipment, which combine two technology. First technology is wattmeter which is used to energy measurement and second is Power line communication. Wattmeter needs two variables for measurement, voltage and current. Voltage measurement is less difficult than measurement of current. Voltage can be reduce and measured by A/D converter. Current has to be transform to voltage and than can be measured same way. To do that we use current transformer. Than we design program for the microcontroller, involvement and PCB. Wattmeter is connect to PLC modem which has been chosen. Fusing this two technology we create wattmeter network. Next step was program which is used to network control and data collecting. This data are used to create charts in web application.
Narrowband PLC modem
Novák, Pavel ; Koton, Jaroslav (referee) ; Mlýnek, Petr (advisor)
The theses is focused on the use of PLC technology. The aim of the thesis is creating device which communicates in a narrowband transmission frequency band. Transmission of communication between plc elements runs through the low voltage distribution network. The frequency and phase modulations are used in order to change the character of data signal. Transmitter and receiver parameters are subjects to the CENELEC standard. The theses gives more attention to the area of hardware build communication element rather than the area of programming.
Broadband over powerline modem
Mahút, Michal ; Šilhavý, Pavel (referee) ; Musil, Petr (advisor)
The aim of the diploma thesis is to look into the issues of Broadband Over Powerline Communication, design and construct a BPL modem. The theoretical part of the thesis covers the division and description of Powerline Communication, its standards, and factors affecting communication over electrical wiring. The practical part includes the design of a printed circuit board for the BPL modem with the selection of necessary components for the modem construction. The output of the thesis is a constructed broadband PLC modem, whose transmission properties and interference resistance are compared with commercially available solutions.
SW for configuration of PLC modems
Tichý, Vojtěch ; Benešl, Tomáš (referee) ; Fiedler, Petr (advisor)
The aim of this bachelor thesis is to design an application for easy configuration of modems, from ModemTec, communicating over power lines. The bachelor's thesis first deals with a brief explanation of the communication over the power line, which will give the reader a general idea of what the application will be used for. Furthermore, to understand the meaning of the individual adjustable parameters of the modem, the serial port is explained, through which the modem will communicate with the parent device that collects data, but also with the computer on which the application will run and with which the modem will be configured. Then, readers are introduced to the design of the user interface and architecture of the application, which includes the basic design principles which the application implementation was based on. The following is a description of the application implementation and the results of ModemTec modem configuration testing. Finally, the achieved results and possibilities for future modification are summarized.
PowerLine Communication for LED unit control
Šebesta, Ondřej ; Janáková, Ilona (referee) ; Honec, Peter (advisor)
This diploma thesis deals with the design and testing of a system for powerline communication, enabling control of LED lights. The work first describes the basic principles of powerline communication, specifies the communication bands and summarizes the basic functional requirements for communication within the system for LED lighting control. It also describes the method of selecting a modem for powerline communication, the design of a test module with this modem and also the method of testing real communication between two test modules, including test results. The most comprehensive part of the work describes the design of hardware and software of the universal PLC module and how to use it. In addition, it referes to the development tools used as an example of implementation in LED lighting. At the end of the work are summarized the results of testing the proposed system.
Power line grid model
Csiba, Patrik ; Sláčik, Ján (referee) ; Mlýnek, Petr (advisor)
This diploma thesis analyzes the PLC communications in various scenarios. The first part of the thesis describes the principle of narrowband and broadband communication and the analysis of electrical lines. The next part describes the NS-3 framework, simulation scenarios for establishment the effect of branches and other parameters on the baud rate. The last part determines the minimum number of repeaters and their location on the extended topology.
Narrowband PLC modem
Novák, Pavel ; Koton, Jaroslav (referee) ; Mlýnek, Petr (advisor)
The theses is focused on the use of PLC technology. The aim of the thesis is creating device which communicates in a narrowband transmission frequency band. Transmission of communication between plc elements runs through the low voltage distribution network. The frequency and phase modulations are used in order to change the character of data signal. Transmitter and receiver parameters are subjects to the CENELEC standard. The theses gives more attention to the area of hardware build communication element rather than the area of programming.
Narrowband PLC communication for Smart Metering
Kubů, Jiří ; Blažek, Petr (referee) ; Mlýnek, Petr (advisor)
This bachelor project is about narrowband PLC communications. The work describes the basic principle, division of PLC communication, history, technology, utilized communication standards and interference affecting the data communication technology. In this work we also performed experimental measurements in real environments with modems from Texas Instruments C2000 and C2000 TMDSPLCKITV4 PLC PLC TMDSPLCKIT-V3. The results of the measurements are real transmission rate. Moreover application was created for remote data collection along with PLC modems C2000 PLC TMDSPLCKIT-V3, the aime was to edit PLC modem firmware and create applications for receiving data from the terminal.
Modem for powerline communication
Sláčik, Ján ; Mlýnek, Petr (referee) ; Kolka, Zdeněk (advisor)
This bachelor thesis is dealing with the standards and usable circuits applications for a powerline communication, which are currently available. Principle of this kind of communication is described for default supply network 230 V/50 Hz. This work is also describing several available modems which can be used for this type of communication. The properties of the standards PRIME and the G3-PLC, which are presently at disposal, are specified, measured and compared with each other in this project. The concentrator based on the G3-PLC standard extended about radio interface was designed. Afterwards this device was tested in various topologies and interference scenarios. The graphical interfaces, which allow the transfer measurements in multiple modes are described is this work as well. The entire measurements were realized in a real conditions for both tested modems. The results of these measurements are validating the purpose of each standard and its configuration.

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