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Innovative Control Systém for Water Supply Management at a Farm
Doležal, Aleš
The thesis deals with the implementation of an innovative control system for the management and supply of water to the farm. The innovation focuses on all areas of the control system such as hardware part as well as software part. In the hardware part, it is mainly about the communication between the PLC and the pumps in the boreholes Where contact switching has been replaced by fiber optic communication. Furthermore, the non-compliant components were replaced by components that are more suitable for this placation. In the software area, tools have been used to simplify both the programming and the actual operation of the control system. The use of structures, the use of equations, and, more efficient sampling of measured data. A PLC from Unitronics was selected to control the entire application. The program for the PLC was written in the UniLogic programming environment from Unitronics.
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An Innovative Control System for Water Supply Management at a Farm
Doležal, Aleš ; Sýkora, Tomáš (referee) ; Jirgl, Miroslav (advisor)
The thesis deals with the implementation of an innovative control system for the management and supply of water to the farm. For the innovation, fiber optic communication between the main switchboard and the poles at the wells was chosen. Furthermore, the thesis deals with the selection of components and sensors for the implementation of the system. The program that controls the whole application is written in ladder language in a development environment from Unitronics, from which the control PLC is also supplied.
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Computer Network Design for Elementary School Building
Dzurdzíková, Kristína ; Jordán, Vilém (referee) ; Ondrák, Viktor (advisor)
This bachelor thesis deals with the issue of a complete computer network design for elementary school, which consists of two buildings. The basis is an analysis of the current situation, which is based on a consultation with the local network administrator. The subject of the thesis will be to propose a complete computer network solution for both school buildings. For a better understanding of the whole issue, the theoretical background is elaborated. The proposed solution is in compliance with Czech technical standards and at the same time it follows the requirements of the investor.
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Optical fiber polarization sensor optimalization for detection of fast and small temperature changes in military objects
Sergeev, Roman ; Grenar, David (referee) ; Filka, Miloslav (advisor)
This bachelor thesis deals with the design of an optical fiber thermal (temperature) sensor suitable for application in a military building. The thermal sensor detects even slight temperature changes based on the change in the polarization state of the light. The thesis describes the basic theory, which serves as a source for understanding the principle of operation of the fiber optic sensor. In the practical part, the basic quantities describing the polarization state of light were measured. The measured values were plotted in graphs to illustrate the dependence. This thesis aims to measure the designed variants of the sensor connection and select the most suitable for temperature measurement.
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Coaxial cables in communication networks
Hotárek, Lukáš ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
The semestral thesis is focused on coaxial cables, its development and current utilization. In the prologue of this paper, the history and origin of the cable is described with mentioning important dates and events in its development. Since the coaxial cable is type of metallic cable, part of the paper deals with the theory, parameters and characteristics of metallic cables. The theory of all basic types of metallic cables is described, that implies twisted pair, structured cabling and coaxial cable, to which is dedicated most space. The next chapter presents brief description, basic division and utilization of fiber optic to enable comparison with coaxial cable. It presents main advantages and disadvantages as well as reasoning for prevalence of use of optic fibers. The current use of coaxial cable is presented. Aside from cable television, computer and telephone networks, the coaxial cables are also used as feeder lines for transmitting and receiving aerials and as television aerial lead. Due to great possibility of utilization of coaxial cables exists a broad spectrum of cables with different parameters and properties. Therefore a separate chapter focuses on particular types of cabling, describes its significant parameters and practical utilization. The last part of the paper presents parameters of coaxial cables that can be verified and that bear great importance in praxis. The methods of proper measurement are mentioned. Aforesaid parameters include impedance, cable loss and distance-to-fault. Described are also modern analyzers that are most commonly used for measuring said parameters of coaxial cables and aerials.
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Optical fiber polarization sensor optimalization for detection of fast and small temperature changes in military objects
Sergeev, Roman ; Grenar, David (referee) ; Filka, Miloslav (advisor)
This bachelor thesis deals with the design of an optical fiber thermal (temperature) sensor suitable for application in a military building. The thermal sensor detects even slight temperature changes based on the change in the polarization state of the light. The thesis describes the basic theory, which serves as a source for understanding the principle of operation of the fiber optic sensor. In the practical part, the basic quantities describing the polarization state of light were measured. The measured values were plotted in graphs to illustrate the dependence. This thesis aims to measure the designed variants of the sensor connection and select the most suitable for temperature measurement.
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Computer Network Design for Elementary School Building
Dzurdzíková, Kristína ; Jordán, Vilém (referee) ; Ondrák, Viktor (advisor)
This bachelor thesis deals with the issue of a complete computer network design for elementary school, which consists of two buildings. The basis is an analysis of the current situation, which is based on a consultation with the local network administrator. The subject of the thesis will be to propose a complete computer network solution for both school buildings. For a better understanding of the whole issue, the theoretical background is elaborated. The proposed solution is in compliance with Czech technical standards and at the same time it follows the requirements of the investor.
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Coaxial cables in communication networks
Hotárek, Lukáš ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
The semestral thesis is focused on coaxial cables, its development and current utilization. In the prologue of this paper, the history and origin of the cable is described with mentioning important dates and events in its development. Since the coaxial cable is type of metallic cable, part of the paper deals with the theory, parameters and characteristics of metallic cables. The theory of all basic types of metallic cables is described, that implies twisted pair, structured cabling and coaxial cable, to which is dedicated most space. The next chapter presents brief description, basic division and utilization of fiber optic to enable comparison with coaxial cable. It presents main advantages and disadvantages as well as reasoning for prevalence of use of optic fibers. The current use of coaxial cable is presented. Aside from cable television, computer and telephone networks, the coaxial cables are also used as feeder lines for transmitting and receiving aerials and as television aerial lead. Due to great possibility of utilization of coaxial cables exists a broad spectrum of cables with different parameters and properties. Therefore a separate chapter focuses on particular types of cabling, describes its significant parameters and practical utilization. The last part of the paper presents parameters of coaxial cables that can be verified and that bear great importance in praxis. The methods of proper measurement are mentioned. Aforesaid parameters include impedance, cable loss and distance-to-fault. Described are also modern analyzers that are most commonly used for measuring said parameters of coaxial cables and aerials.
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