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Designing intelligent data distribution networks
Stojaspal, Martin ; Škorpil, Vladislav (referee) ; Mišurec, Jiří (advisor)
Master thesis on topic Design of intelligent data distribution network is focused on the design of KNX bus system. The theoretical part is focused on problematic of KNX technology and on the rules, regulations and forms which must correct project documentation contain. The practical part is focused on creation of complete design of project documentation KNX bus system. In this thesis is basically shown how project documentation should look like.
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Data network for smart grid energy
Durkoš, Michal ; Šimek, Milan (referee) ; Mišurec, Jiří (advisor)
Electric grid as we now it has been without significant change for a long time. Along with the human population grows demand for electricity, which leads to need to create more energy. Bigger interest is in ecology and use of renewable sources, although these do not have constant output which often stresses the grid. These problems are to be solved by smart grids. Smart grids are capable of adjusting energy generation to immediate demand including renewable sources to compensate energy fluctuations in grid. They provide demand response and other applications interesting for end users. Smart grids are combination of achievements in energy, informatics and communication technology. Communication, which is key part of smart grids, has to met certain requirements and can be executed by various technologies. There are described various communication technologies and a design concept of data communication in this paper.
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Power line transfer function generator
Šenk, Marek ; Mišurec, Jiří (referee) ; Mlýnek, Petr (advisor)
The aim of this thesis is to create a power line transfer function generator in Matlab. Work on introduction explains the concept of power line and describes the different types of topologies and types of cables that power line are the most widely used today. It is also discussed PLC technology, its structure, characteristics of the transmission channel and interferences. The following are approach the types of the modeling of power line. More details are described generally modeling in the frequency (two-port network model), which is used in the created generator. The next section provides a power line model, whose principle is used in the generator. The following is a description of created the generator and comparison with FTW PLC Simulator. In conclusion, the thesis presents the results of simulations the transfer function, which show the magnitude and phase frequency characteristics of different topologies and parameters.
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Smart Simulator of Resistive Sensors for Life-Cycle Tests
Pospíšil, Jakub ; Mišurec, Jiří (referee) ; Číž, Radim (advisor)
The document is made as an operating item at evaluating of life tests for connected equipments. There is set of bookcases, thanks to them we can use the equipment simply. The digital potenciometer is used like a stimulator of resistance sensor in this equipment. The equipment is able to communicate with PC. The mikrocontroler ATmega324p is the most important part of the equipment.
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Power distribution network model
Bradáč, Lubomír ; Mišurec, Jiří (referee) ; Mlýnek, Petr (advisor)
The thesis is focused on PLC technology issues and thus the data transmission over a power-line. This work describes characteristics of the PLC technology, its usage, functional principles and used modulation techniques. The main part of the work describes individual kinds of interferences in the network. The method of necessary steps against these interferences by using the right modulation and relevant coding is also described in the thesis. On the basis of theoretical knowledge, the models of interferences are realized in Matlab/Simulink. The simulative model of power-lines with random parameters is designed and realized for each elected techniques of modulation (BPSK, QPSK, ASK, FSK). The method of PLC channels modeling is chose as a multipath signal spreading for topology with one and two branching and the dependence of their transmission functions are inquired too. The analysis of interference influence on the data transmission is performed via the created models. All acquired results are compared and evaluated in the conclusion of this thesis.
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Using brushless d.c. motor to drive servo-unit with safety function
Rudolf, Ladislav ; Mišurec, Jiří (referee) ; Prajzner, Václav (advisor)
In this work, a proposal for BLDC motor control, which will be used as a drive linear actuator. Control with microcontroller focuses mainly aspects such as motor mode, regenerative mode, measuring rotor position sensors and measuring the motor current, which corresponds to the moment. The result of the work is focused on upgrading the existing Honeywell actuator, where the processor-controlled BLDC motor to replace the existing system and take over the actuator working function and emergency function.
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Cascade model of power lines for PLC
Dziura, Michal ; Mlýnek, Petr (referee) ; Mišurec, Jiří (advisor)
The thesis is dealing with data transmission over the electric network. It describes PLC technology, its properties, and elements used in this type of network. The important part of this thesis is discussion over the mathematical model of distribution network with two-port cascades. Transmission functions created according to mathematical model were compared with each other. Thesis was concluded with observation of the impact of interconnected parts on transmission function of designed branched conductor. Final results were processed by Matlab and compared with each other.
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Intelligent systems of mass data acquisition in power grids
Krejčír, Ľuboš ; Koutný, Martin (referee) ; Mišurec, Jiří (advisor)
This paper is describing the issues of data collection in power distribution networks. It discusses the posibilities of data communication over wide area networks using the communication protocol IEC 60870-5-104, used in power distribution systems for transmission of information over IP networks. Thesis presents 4 technologies, suitable for data collection, with respect to the use of existing infrastructure of the utility. It focuses on design of appropriate data types in correspondence with used IEC 60870-5-104 protocol, and estimates the minimum data requirements for transmission, through proposed hierarchical network, with collecting data concentrators. For verification of given design, simulations are carried out based on proposed data loads with subsequent analysis of network load and transmission delays. Consequently, the results are analyzed and selected parts of network optimized for improvement od selected results, of which causes of formation are discussed in debate.
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Computer modelling of data transfer over power lines
Křivka, Petr ; Mlýnek, Petr (referee) ; Mišurec, Jiří (advisor)
The master‘s thesis is focused on data transfer over power lines. The influence of connected devices on data signal is studied. In this thesis, you can find the descriptions of PLC technology characteristics, sources of signal interruption and, mainly, the method of modelling the PLC channels as a multipath signal propagation environment is thoroughly discussed. There are models of PLC channels using this method projected in Simulink. The analysis of the influence of connected devices to bit error rate of a signal is processed. The devices are modelled by connected impedance.
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Project documentation for the design of data networks
Gajdošík, Ivo ; Mišurec, Jiří (referee) ; Mrákava, Petr (advisor)
This Master’s thesis deals with project of blueprints for installation of data cabling in specific building following regulations. Theoretical part describes basic overview of used regulations and principles of data networks with focus on Ethernet and Wi-Fi standards. Separated chapters cover passive layer of data networks and computer-aided-design. Practical part contains implementational and architectural drawing of data network project in multipurpose building. According to these plans the project could be realized.
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