|
|
Power Line Communication for Home Automation Applications
Hromádka, Michal ; Štohl, Radek (referee) ; Fiedler, Petr (advisor)
This thesis describes the design of a modem for a communication over residential power lines. First part is focused on the history, suitable frequency bands, modulation techniques and mainly on the selection of the optimal modem device. Second section contains the description of the hardware design of the modem itself and clarifies the implementation of the PLC module to be used as a communication interface for a full residential automation solution. Last chapters of this thesis introduce the communication protocol, design of the software for the ATmega32 MCU and present of the final field testing under real conditions.
|
|
|
Design of The Data Communication Between Digital Protection Relays and Monitoring System of Dukovany Nuclear Power Plant
Šula, Vladimír ; Topolánek, David (referee) ; Toman, Petr (advisor)
This thesis describes the provision of the data communication of the new protection relays via 6 kV switch gears to the electro monitoring system at the Dukovany Nuclear Power Station. These protection relays will replace the current analog protection. The replacement process will start in 2015 and will finish in 2018. Given the overall complexity of the project, this thesis deals only with the following 6 kV switch gears 9BB and 9BD. The thesis is divided into a theoretical and a practical part. The theoretical part concerns the actual consumption and output of the Dukovany Nuclear Power Station. The following chapters describe the electro monitoring system and GRAF and LOGA software programs that are closely connected with it and that were used in the practical part. The last chapter of the theoretical part deals with the actual replacement of the protection relays of the 6 kV switch gears. Also, it describes a new optical network, which will be set up at the Dukovany Nuclear Power Station as a part of the process of replacement. The segment of the practical part concerns laboratory verification of the data communication of the new protection relays. Next, it describes actions that had to be taken in order to ensure and verify correct functionality of the data communication. This part is followed up by a closely related practical activity, which describes examination and verification of the protection functions of each of the 9BB and 9BD switch gears protection relays.
|
|
|
Measurement of electric power quality
Šenk, Marek ; Mišurec, Jiří (referee) ; Mlýnek, Petr (advisor)
Bachelor thesis introduction explains the concept of electric power quality and describes the different characteristics of voltage, which determine the electric power quality. Further bachelor thesis is engaged in finding the optimal data communications for the energy data for telecommunications networks, GSM networks and high-voltage networks PLC technology with regard to safety and reliability of data transmission. Subsequently are analyzes the data using Wireshark. Analyzed data was measured meter of power quality PQ monitor MEg 33. According to the types of analyzed data were evaluated possible types of security using CrypTool 2. At the end of this work is analyzed measuring the basic characteristics of power quality and practical measurement is made with quality recorder Fluke VR1710.
|
|
|
Intelligent control of train track model
Prokš, Jiří ; Hégr, Ondřej (referee) ; Pavlík, Michal (advisor)
The aim of this thesis is design of elements intelligent control of train track model. The first part of the thesis is focused on principle of data communication. It explains what it is data communication and how it works out. Practical part of the thesis is focused on designe of communication. Data communication is realized by infrared radiation. Practical part describes the funcional parts of system and their design, such as: control part, receiver and transmitter, switching elements and h-bridge. Properties of elements specialize for model of railway are considered in design. Summary of the design’s parameters, use, advantages and disadvantages are described at the end of this thesis.
|
|
|
The realization of the data communication for application to the mobile networks
Sodomka, Lukáš ; Růčka, Lukáš (referee) ; Jelínek, Mojmír (advisor)
Thesis deals with data technology, which can be used for communication between mobile and IP networks. The aim of the project is to design data communication and the subsequent implementation of the mobile and IP networks. First of all, it made an introduction to telecommunications systems with focus on GSM. Subsequently, the work examines data provided by GSM technology standard with a focus on GPRS, which is in the other chapters discusses in more detail. The resulting communication application protocol is designed in two versions, which is achieved by the creation of an autonomous system. Communication is implemented using JAVA programming language, which created an application client, server and implemented application protocol. Client application is tested on a mobile phone with Internet connection with support for GPRS technology. Server application is installed on a PC workstation, which is assigned a public IP address, it is easily addressable from the Internet.
|
|
|
Narroband PLC model
Sekot, Karel ; Krajsa, Ondřej (referee) ; Mišurec, Jiří (advisor)
This thesis is focused on data communication utilizing low-voltage power distribution lines (PLC). It describes interference in narrowband systems commonly used for remote data collecting, for example. Preamble deals with basic priciples of PLC (signal injecting) and describes the measuring workplace, its wiring and used tools. Following sections define different types and possible sources of interference, operation of the equipment in terms of EMC and other characteristics of the transmission path. The text also analyzes practical interference tests, identifies main parameters affecting data transmision and compares teoretical and practical conclusions.
|
|
|
Intelligent control of train track model
Prokš, Jiří ; Hégr, Ondřej (referee) ; Pavlík, Michal (advisor)
The aim of this thesis is design of elements intelligent control of train track model. The first part of the thesis is focused on principle of data communication. It explains what it is data communication and how it works out. Practical part of the thesis is focused on designe of communication. Data communication is realized by infrared radiation. Practical part describes the funcional parts of system and their design, such as: control part, receiver and transmitter, switching elements and h-bridge. Properties of elements specialize for model of railway are considered in design. Summary of the design’s parameters, use, advantages and disadvantages are described at the end of this thesis.
|
|
|
Measurement of electric power quality
Šenk, Marek ; Mišurec, Jiří (referee) ; Mlýnek, Petr (advisor)
Bachelor thesis introduction explains the concept of electric power quality and describes the different characteristics of voltage, which determine the electric power quality. Further bachelor thesis is engaged in finding the optimal data communications for the energy data for telecommunications networks, GSM networks and high-voltage networks PLC technology with regard to safety and reliability of data transmission. Subsequently are analyzes the data using Wireshark. Analyzed data was measured meter of power quality PQ monitor MEg 33. According to the types of analyzed data were evaluated possible types of security using CrypTool 2. At the end of this work is analyzed measuring the basic characteristics of power quality and practical measurement is made with quality recorder Fluke VR1710.
|
|
|
Design of The Data Communication Between Digital Protection Relays and Monitoring System of Dukovany Nuclear Power Plant
Šula, Vladimír ; Topolánek, David (referee) ; Toman, Petr (advisor)
This thesis describes the provision of the data communication of the new protection relays via 6 kV switch gears to the electro monitoring system at the Dukovany Nuclear Power Station. These protection relays will replace the current analog protection. The replacement process will start in 2015 and will finish in 2018. Given the overall complexity of the project, this thesis deals only with the following 6 kV switch gears 9BB and 9BD. The thesis is divided into a theoretical and a practical part. The theoretical part concerns the actual consumption and output of the Dukovany Nuclear Power Station. The following chapters describe the electro monitoring system and GRAF and LOGA software programs that are closely connected with it and that were used in the practical part. The last chapter of the theoretical part deals with the actual replacement of the protection relays of the 6 kV switch gears. Also, it describes a new optical network, which will be set up at the Dukovany Nuclear Power Station as a part of the process of replacement. The segment of the practical part concerns laboratory verification of the data communication of the new protection relays. Next, it describes actions that had to be taken in order to ensure and verify correct functionality of the data communication. This part is followed up by a closely related practical activity, which describes examination and verification of the protection functions of each of the 9BB and 9BD switch gears protection relays.
|
|
|
Power Line Communication for Home Automation Applications
Hromádka, Michal ; Štohl, Radek (referee) ; Fiedler, Petr (advisor)
This thesis describes the design of a modem for a communication over residential power lines. First part is focused on the history, suitable frequency bands, modulation techniques and mainly on the selection of the optimal modem device. Second section contains the description of the hardware design of the modem itself and clarifies the implementation of the PLC module to be used as a communication interface for a full residential automation solution. Last chapters of this thesis introduce the communication protocol, design of the software for the ATmega32 MCU and present of the final field testing under real conditions.
|
guest ::
