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Automatic control for factory building heating
Prudek, Miroslav ; Voldán, Jiří (referee) ; Němec, Zdeněk (advisor)
The graduation thesis is focused on the automatic operating of heating of the production hall of První brněnská strojírnaVelká Bíteš, a.s. The thesis consists of an analysis of present state of the heating technology and solution of the general conception of the automatic operating of the heating. Integrated part of the conception is heat-up of the supply water and drain off of the condensation water from the air heating units. Outcome of this graduation thesis is a design of the algorithm for operating of the regulated system. Remote supervision and control of the regulated system shall be ensured by the visualization setting, which shall be implemented into the station of dispatching centre. The accuracy of the design of the part of regulated system shall be validated as a design of PID regulator with the use of “Matlab” program and it´s module “Simulink”. To set up parameters of the PID regulator, “Ziegler-Nichols” method shall be applied. The objective pay-off period of investments for regulation controlling system is figured out as a part of this thesis as well.
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Innovation design of thermomould machine
Sipták, Petr ; Němec, Zdeněk (referee) ; Lacko, Branislav (advisor)
The aim of the thesis is to propose the innovation of thermomould machine so that the complicated substitution of the distribution plate is eliminated. The diploma thesis documents the application of automatization in a small food processing company and contains a description of problems connected to the use of automatization in small and middle enterprises (SME). The thesis describes the solution of the universality of the distribution plate and its control by means of an operating systém that is implemented with a single-purpose board that is equipped with microelectronic components. The thesis ends with an economic analysis of the suggested solution.
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Contactless measuring in process engineering
Lavický, Jiří ; Hanák, Libor (referee) ; Němec, Zdeněk (advisor)
The objective of my thesis is description of contactless measuring methods, their principle and distribution. There are compiled basic facts about the measurement of laser and ultrasound. In this work is also described non-contact temperature measurement. Part of thesis is non-contact flow measurement on the model.
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Design and realization of a new laboratory exercise with PLC B&R Automation
Cejpek, Zdeněk ; Němec, Zdeněk (referee) ; Lang, Stanislav (advisor)
This bachelor thesis is concerned with designing of a laboratory task primary dedicated for the course „Advanced control methods“, which for the education uses the instruments of company B&R Automation. From possible aproaches chooses modeling of dynamic systems using analog electrical circuits. Those circuits are realized in modular manner, in order to allow building models of various systems. The thesis also includes a desing of proper casing, which simplifies the manipulation by building of the systems. Using designed prototype modules, a model of a separately excited DC motor was built. This model is used for realization of the laboratory task, for which is provided a short manual including some basic program for Automation Studio. The thesis also briefly introduces the company B&R, it´s products and a PLC configuration used in courses „Advanced control methods“.
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Teaching documents creation for work in the development system STEP 7-Micro/WIN
Svoboda, Jakub ; Němec, Zdeněk (referee) ; Marada, Tomáš (advisor)
This document deals with the programmable logic controller Simatic S7-200, which is a part of the equipment in the laboratory of programmable controllers at the Brno University of Technology (Faculty of Mechanical Engineering, Institute of Automation and Computer Science). The purpose was to make self familiar with this controller and development system STEP 7-Micro/WIN at first and create a user guide which could be used as a teaching aid in the next phase. There were also created several sample tasks at different level of difficulty at the same time. Students can use them to prove the theory in practice.
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Measurement and evaluation of laboratory DC drive vibration
Bilý, Michal ; Zuth, Daniel (referee) ; Němec, Zdeněk (advisor)
This thesis encompasses measuring and rating of vibrations in electric machines. The theoretical part begins with a short description of possible causes of vibrations, which is followed by a discussion about what consequences the vibrational effects have on electrical devices. Then there is a description of available vibration sensors. The bigger part is then devoted to analysis of vibratory signal in both time and frequency domains. The practical part is divided into two chapters. The first one describes laboratory demonstration of control drive with DC motor, which is expanded by measurement of vibrations. The second chapter deals with measurement and analysis of said vibrations in the demonstration.
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Design of control circuit for towing dynamometer
Rýznar, Jan ; Němec, Zdeněk (referee) ; Cejpek, Zdeněk (advisor)
This bachelor’s thesis is focused on design of a control circuit for a towing dynamometer. In the introductory part of the thesis is a detailed description of the towing dynamometer, including its main parts, which are necessary for proper operation. The next chapter is devoted to creating a dynamic model of an existing prototype using Simscape. Furthermore, based on the conditions from the dynamic model, a control circuit is designed, which is introduced in the form of a program into the control unit of the towing dynamometer. Based on the measured data from the transient responses, the function of the controller is gradually tuned to a satisfactory result. Finally, the function of the control circuit is evaluated and then measures to improve the stability, quality and accuracy of control are proposed.
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Simulation models EDUmod for PLC in NI LabVIEW
Jančík, Stanislav ; Němec, Zdeněk (referee) ; Marada, Tomáš (advisor)
This diploma thesis discusses the connection trough the programmable automation (PLC) with a personal computer (PC) for the purpose of operating software simulation in NI LabVIEW. Diploma thesis is divided in two main parts. Design and manufacture of the communication unit, which is in charge of communication between PC and PLC and further programming simulation models in software NI LabVIEW.
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Environmental-friendly heating
Čekanová, Adéla ; Tabasová, Andrea (referee) ; Němec, Zdeněk (advisor)
The subject of thesis is environmental-friendly heating. Theoretical part includes overview of possible ways using alternative energy sources, especially solar energy and energy environment - heat pumps. Partical part is devoted to solution of environmental-friendly heating and heating warm water for family house using solar system. The proposal is documented with economic evaluation and calculation of economic return.
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