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Control of heating system for family house
Blecha, Martin ; Zezulka, František (referee) ; Štohl, Radek (advisor)
The aim of the work is design involvement of controls elements and implementation of the control program for control of heating system for family house. The first part deals with the analysis of control principles, sources of heat and radiator elements. It describes measuring control devices from KOBRA company, and software named “Architekt” which serves for environment creation. The second part focuses on the design diagrams, switchboard wiring, its installation and the creation of the application.
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Web interface for a measurement module
Łabudek, Daniel ; Kuběna, Tomáš (referee) ; Zezulka, František (advisor)
The work solve the design and implementation of web application to measure analog inputs, setting and measuring the digital input and output of the measuring module based on microcontrollers ATMEL ATMEGA64. For connecting to internet is use a module LanReach by company Connectone. Measured values are displayed on the website or send via e-mail messages.
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Laboratory model of an machine for printed wiring
Posekaný, Jan ; Kaczmarczyk, Václav (referee) ; Zezulka, František (advisor)
Production of printed circuit boards using three-axis CNC milling machine is suitable for small batch production. Milling machine consists of three axes, which are controlled by stepper motors. Controlled by a PC connected to the control electronics to communicate over the serial line. Input data is exported from the Eagle design software. The core of the control unit´s processor family, the AVR ATmega16, motor drivers for the ATmega8. Transfer between PC and the device is implemented using a virtual person through USB.
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Optimal Control Strategies for Building Energy Consumption
Kaczmarczyk, Václav ; Horák, Bohumil (referee) ; Janeček, Eduard (referee) ; Zezulka, František (advisor)
This thesis discusses the operational coordination of electrical appliances and devices in a smart home. At present, the diminishing volume of fossil fuels and the increasing pressure to use renewable sources of energy necessitate the integration of such volatile sources into electrical grids. This process, however, results in higher energy costs, and the consumers are thus more willing to change their behaviour to either reduce the expenses or maintain them at a reasonable level. One of the relatively few customer-oriented options to optimise energy costs consists in the demand – response principle, which utilises external information to minimise energy consumption during high price periods. Assuming the constantly changing conditions in electrical grids, and thus also the varying demands, it is vital to provide for automatic optimisation excluding the need of user intervention. The thesis presents a method which, after being implemented into the control member, will facilitate the optimal use of appliances and devices within a smart home. As the behaviour considered optimal from the perspective of demand - response is often inconsistent with the consumer‘s requirements for comfortable use of the appliances, the proposed technique offers a compromise through enabling the consumer to select the appropriate strategy. Five universal optimisation models are designed within the thesis; these models facilitate description of common home appliances and local electricity sources. The core of the method lies in formulating and optimising a mixed integer quadratic problem (MIQP). The optimisation task yields an operational schedule for the individual appliances, and this scheme considers the energy costs, the working cycle of the appliance, the user’s demands, the system restrictions and/or other input data. Furthermore, the author extends the above-discussed general technique, enabling it to adopt robust behaviour. The method then secures the preset strategy even during a marked change of the input conditions, and its robustness is a viable precondition for the overall applicability of the technique in the real control member.
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Performance Analysis in IP-Based Industrial Communication Networks
Beran, Jan ; Švéda, Miroslav (referee) ; Hanzálek, Zdeněk (referee) ; Zezulka, František (advisor)
S rostoucím počtem řídicích systémů a jejich distribuovanosti získávájí komunikační sítě na důležitosti a objevují se nové výzkumné trendy. Hlavní problematikou v této oblasti, narozdíl od dřívějších řídicích systémů využívajících dedikovaných komunikačních obvodů, je časově proměnné zpoždění měřicích a řídicích signálů způsobené paketově orientovanými komunikačními prostředky, jako např. Ethernet. Aspekty komunikace v reálném čase byly v těchto sítích již úspěšně vyřešeny. Nicméně, analýzy trendů trhu předpovídají budoucí využití také IP sítí v průmyslové komunikaci pro časově kritickou procesní vyměnu dat. IP komunikace má ovšem pouze omezenou podporu v instrumentaci pro průmyslovou automatizace. Tato výzva byla nedávno technicky vyřešena v rámci projektu Virtual Automation Networks (virtuální automatizační sítě - VAN) zapojením mechanismů kvality služeb (QoS), které jsou schopny zajistit měkkou úroveň komunikace v reálném čase. Předložená dizertační práce se zaměřuje na aspekty výkonnosti reálného času z analytického hlediska a nabízí prostředek pro hodnocení využitelnosti IP komunikace pro budoucí průmyslové aplikace. Hlavním cílem této dizertační práce je vytvoření vhodného modelovacího rámce založeného na network calculus, který pomůže provést worst-case výkonnostní analýzu časového chování IP komunikačních sítí a jejich prvků určených pro budoucí použití v průmyslové automatizaci. V práci byla použita empirická analýza pro určení dominantních faktorů ovlivňujících časového chování síťových zařízení a identifikaci parametrů modelů těchto zařízení. Empirická analýza využívá nástroj TestQoS vyvinutý pro tyto účely. Byla navržena drobná rozšíření rámce network calculus, která byla nutná pro modelování časového chování používaných zařízení. Bylo vytvořeno několik typových modelů zařízení jako výsledek klasifikace různých architektur síťových zařízení a empiricky zjištěných dominantních faktorů. U modelovaných zařízení byla využita nová metoda identifikace parametrů. Práce je zakončena validací časových modelů dvou síťových zařízení (přepínače a směrovače) oproti empirickým pozorováním.
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Laboratory model of a technological process
Macej, Maroš ; Pásek, Jan (referee) ; Zezulka, František (advisor)
In this thesis, there is implementation of the closed circuit mill model in the program Control Web. The model contains both logical and dynamical elements. There are four systems in the model. Three systems of the firsth degree are regulated by PI - controller, the fourth is regulated by a PSD - controller. The regulators were designed in the program Matlab using sisotool and simulink.
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Interned based measurement system
Dobrovolný, Petr ; Kozák, Tomáš (referee) ; Zezulka, František (advisor)
The work is deal with the measuration and distribution of data using microcontroller ATmega64. The measuring system connect is done by Ethernet controller ENC28J60 in communication networks. Communication protocols TCP / IP are taken advantage of transfer data to user. Data view is dealt with the HTTP protocol through the use of HTML code. Web browser are used for disclosure of information. Web page uploading can be replenish with current analogue and digital values using the tags created for this measuring system.
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Microprocesor based thermostat II
Paděra, Zdeněk ; Fiedler, Petr (referee) ; Zezulka, František (advisor)
Minor thesis is focused on ideological proposal of microcomputer orientated room thermostat, which is used for regulation of room temperature. The thesis concerns total proposal of characteristics and functions of room thermostat, concept of technical implementation and electronic scheme. The thermostat satisfies all the room thermostat requirements and eliminates disadvantages of marketed thermostats. Then algorithms of temperature control was proposed and comparison of these algorithms was realized on thermodynamic model of building. One of these algorithms was tested by the implementation on RABBIT 2000TM TCP/IP DEVELOPMENT KIT. At the close assessment of functionality of the realized algorithm was realized and selection of optimal algorithm for proposed room thermostat followed.
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Microcontroler oriented thermostat
Valíček, Josef ; Hynčica, Ondřej (referee) ; Zezulka, František (advisor)
The aim of the bachelor’s thesis is to design and develop a microcontroller based room thermostat, suitable for controlling the temperature in houses or flats. The proposal of the thermostat takes into consideration the requirements put on today's marketed thermostats and the regulation of house temperature. The result is a detailed circuit blueprint, suitable for assembling the thermostat device. The work is mainly focused on the design of advanced algorithms applicable for the room temperature regulation and comparison of these algorithms based on the room thermodynamic model. The selected algorithm was implemented in the Rabbit2000TM microprocessor development kit and its performance was subsequently verified at the real object. Finally, the thesis gives an evaluation of the results and suggests the most suitable algorithm for the designed thermostat.
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Relay output module for electronic tachograph
Feilhauer, Petr ; Sirka, Martin (referee) ; Zezulka, František (advisor)
This bachelor thesis contains detailed description of function and wiring current Electronic tachograph RE1xx from company UniControls-Tramex. For comparison there is mentioned description of competitor’s products from this branch. The part of this thesis is analysis of measurement actual speed on the train vehicles and analysis of imaging information to staff of vehicle. The base of this finding is making several projects about future way of development of this electronic tachograph. Main programmes of this thesis are design, implementation and verification functions of module relays outputs for Electronic tachograph RE1xx. Practically design must be satisfy with basic technical-law specifications, which refer of this branch for application this device. Thesis contains the description of single parts of scheme, control microcontroller, using of integrated circuits. Further thesis will contain theoretical calculations, design of main software and his implementation to the module. The aim of design and implementation of module relays outputs is evaluation reached outcomes from view technical solutions, functions and price statement of the module.
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