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Bus wiring systems for complex building management
Mokrý, Lukáš ; Macháček, Jan (referee) ; Bátora, Branislav (advisor)
The aim of my thesis is to examine current opportunities of bus wiring systems for complex building management, mainly its power and economic evaluation. It can be simply called intelligent electrical installation. I will examine two systems from INELS and ABB company. These systems contain functional components, mainly modules and controllers. By means of other materials, I’ll create a panel. Components will be placed there and electrically connected. After this, systems will be put into operation and programmed by means of their software. The next step is measuring of quatities during the various conditions of systems and consumption, which is one of the main aims of the thesis. Two apparatuses will be used for measuring. This thesis itself will contain theoretical analysis of systems, their description, using the way of operation and main advantages and disadvantages. Single components and complete process of measuring and working in laboratory will be described. An overall evaluation and comparison of the systems from various points of view, including the price, will be put together from results.
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Microprocesor based security system
Machek, Ondřej ; Chomát, Luděk (referee) ; Macho, Tomáš (advisor)
The bachelor thesis resolves a problem of securing buildings through the electrical security system. The work concerns a proposal of a securing device and a proposal of a corresponding software. MACHEK, O. Microprocessor driven secure device. Brno: Brno University of technology, The Faculty of Electrical Engineering and communication , 2009. Supervisor of Bachelor’s thesis Ing. Tomáš Macho, Ph.D.
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Design of optoelectronic sensor for biological tissues
Balík, Zdeněk ; Bartlová, Milada (referee) ; Tománek, Pavel (advisor)
Biological tissues are optically inhomogeneous and absorbent materials. They are comprised of various structures such as cells, cell organelles, and various fiber structures. Due to these structures leads to different interactions with the light and phenomena such as absorption, scattering and polarization of light. Different ultrasonic, electromagnetic, electrical and optical methods are used for meat ageing detection. Muscles are turbid anisotropic media, they exhibit changes in electrical and optical properties according to the direction of the electrical and optical fields in the sample. The diploma work assesses the feasibility of impedance measurements for meat ageing detection and their comparison with optical measurement of scattered polarized light. Two different sample were used: pork chop slices and chicken breasts were used for their relative homogeneity. The electrical method is a promising method due to the possibility of getting much information and realizing cheap and fast enough measurement systems. The proposed optical method allows measure the rotation of polarization plane with meat ageing in the range of 95 degrees within considered period. Through the first promising results obtained in this thesis, a further work has to be provided to determine closer relationship between optical scattering characteristics, electrical anisotropy in ageing-related tissue structural properties.
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The energy independent flow meter with remote reading
Šindelář, Jindřich ; Růžek, Václav (referee) ; Dřínovský, Jiří (advisor)
The thesis is focused on the design of a self-powered sensor for measurement of water flow rate and temperature in water pipelines. The key block of this thesis is the construction of an electric generator powered by excitation with turbulent flow. The generated voltage should power the sensor's circuits and allow water flow rate measurements. Throughout the development, three prototypes of generators powered by turbulent flow were created. Turbulences were not created by an insertion of a bluff body but by inner geometry of the pipeline elements. Maximum power of 10,66 uW was generated at flow rate of 8 m3/h. Afterwards, a prototype of water flow rate and temperature sensor was assembled. Energy self-sufficiency of the device at common flow rates was not achieved using the chosen procedure. The designed flow rate measurement method is suitable for an approximate flow rate estimation.
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Parking Assistant
Mareček, David ; Dluhoš, Ondřej (referee) ; Kubát, David (advisor)
This thesis deals with design and implementation of parking assistant. It introduces the types of sensors for distance measurement and possibilities of using camera system. In implementation there are used ultrasonic sensors, namely rangefinder SRF08 and web cameras. User interface that combines data from individual sensors was designed and implemented. Parking assistant provides function for edge detection, sound and graphics signalization together with automatic night mode.
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Apodization of the fibre Bragg gratings by use of phase mask UV exposition
Burian, Tomáš ; Hejátková, Edita (referee) ; Urban, František (advisor)
This thesis describes the problem of fiber gratings, focusing primarily on the use of Bragg's grids in the sensor. It describes the types of fiber mesh production, especially the method of writing with a phase mask. The next part deals with the possibilities of using apodization in fiber optic systems. It deals with the various functions that can be used to describe apodization. The following part describes the moire principle, especially the method of overlapping two phase masks with a different period.
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Agent-Based Monitoring of Wireless Sensor Networks
Houšť, Marek ; Kočí, Radek (referee) ; Zbořil, František (advisor)
The reader is first introduced with history and possible applications for wireless sensor networks. The thesis then describes the problems of wireless sensor networks and implementation tools for wireless sensor networks. The thesis also presents the system WSageNt and its client web interface. Practical part is based on the design of agent elements. Describes gradual implementation, testing and practical realization of these agent elements in the system WSageNt. The final part discusses the advantages and disadvantages of the project and identifies possible future expansion of the system.
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Control unit of four - legged robot based on microcontroller PIC
Youssef, Daniel ; Lamberský, Vojtěch (referee) ; Grepl, Robert (advisor)
This Bachelor thesis develops “Jaromir“, a four legged robot by adding appropriate sensors to it and designing a new control unit that is able to receive and process the acquired data by the sensors. The functionality of the control unit is tested by implementing a number of simple movements. This testing demonstrates the possibility of using this unit for the developing and testing of complex movement algorithms.
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Home Automation with Third-Party Sensors
Macháč, Matej ; Korček, Pavol (referee) ; Košař, Vlastimil (advisor)
The aim of this work is to evaluate possibilities to integrate wireless devices for home automation in BeeeOn system developed on the Faculty of Information Technology in Brno. This thesis describes USB modules that allow connenction to these devices. It describes the communication protocols that the modules can handle and devices using these protocols. It also deals with FHEM system, its features and possibilities of communication with the BeeeOn system. A reader can also find decription of implementation of every module created to provide support of wireless devices to the gate of BeeeOn system.
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