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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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Proposal of wireless sensor network for indoor monitoring of people and objects
Záděra, Zdeněk ; Mráz, Ľubomír (referee) ; Morávek, Patrik (advisor)
This thesis describes the design of wireless sensor network (WSN) for monitoring of people and objects in a building. The work deals with issues of localization and tracking in sensor networks and algorithm implementation to sensor nodes. It also contains a description of the aplication requirements. These requirements form the basis for the proposal. The hardware part of the network consists of sensor nodes IRIS from Crossbow company. The work describes the properties of these nodes. Next part deals with of propagation model and design of the localization algorithm. The paper also describes the communication in the network. The thesis also includes a practical realization of the proposed network, the localization system and its testing. In the work is included a CD with the building schematic in AutoCAD and with source code of created applications.
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Solar irrigation
Straňák, Rastislav ; Jaššo, Kamil (referee) ; Jandová, Kristýna (advisor)
This bachelor thesis deals with the issue of solar irrigation system together with the design and manufacture of the owner´s solution. The beginning of the thesis deals with the analysis of commercial equipment, determining its possible innovations. It continues with the analysis and selection of individual components for author´s solution. Newly designed device has a microcontroller that evaluates data from the relevant components, thus controlling the system processes. Thanks to the protection against self-destruction caused by running out of water or clogged hoses, the protection of plants against overwatering and the additive function of fertilization, i tis a compact solar irrigation system. The last part deals with the testing of the created equipment and the analysis of the achieved results.
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Generation of Cryptographic Key from Eye Biometric Features
Semerád, Lukáš ; Hájek, Josef (referee) ; Drahanský, Martin (advisor)
The main topic of the thesis is creation of formulas for the amount of information entropy in biometric characteristics of iris and retina. This field of science in biometrics named above is unstudied yet, so the thesis tries to initiate research in this direction. The thesis also discusses the historical context of security and identification fields according to biometric characteristics of a human being with an overlap for potential usage in biometrics of iris and retina. The Daugman’s algorithm for converting iris image into the binary code which can be used as a cryptographic key is discussed in detail. An application implementing this conversion is also a part of the thesis.
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Usage of Intelligent Agents in Wireless Sensor Networks
Žídek, Petr ; Janoušek, Vladimír (referee) ; Zbořil, František (advisor)
This thesis is focused on wireless sensor networks and implementation tools for creation and simulation of applications. It describes WSnageNt project, which is intended to support agents in wireless sensor networks. The main objective of this thesis is to extend the WSageNt project with new features that will allow to create agents with more capabilities. These features will be then used to extend the WSageNt project with network node movement tracking capability.
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Research into GPS system used for Wireless Sensor Node Localization
Juračka, Jan ; Číž, Radim (referee) ; Šimek, Milan (advisor)
Theme of the thesis is research and possibility of using GPS system from localization in wireless sensor network. Paper deals with the accuracy and energy consumption of GPS localization. Thesis also solve using of localization in local anchor system. Theoretical part describes IEEE 802.15.4 standard, capability of used nodes and describe ways how to use RSSI value to resolve location
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Person identification by iris
Čermák, Peter ; Petyovský, Petr (referee) ; Janáková, Ilona (advisor)
This work deals with biometric methods, with close aiming to identification men by the iris. It describes origins of biometric and its application in present days. It contains overview of the most used and also less known biometric methods and systems. Next aim of this work is proposal of hardware sensor of iris and simple practice of image processing
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Pupil and iris center detection
Prosser, Jan ; Chmelík, Jiří (referee) ; Kolář, Radim (advisor)
This thesis is aimed at image processing to obtain informations about the center of pupil and iris,the pupillar and limbic boundary from grayscale images of the eye. An introduction describes general research in topic of pupil, iris and changes in size of pupil. There are mentioned articles dealing with the detection of the center of pupil and iris. These articles were used as an inspiration for proposal of detection methods used in this work. The introduction ends with description of designed approaches of detection of parameters of pupil and iris in images of CASIA-Iris-Interval database. The second, practical part of this work, is dedicated to description of acquisition system, which was compiled to obtain proper images of eye. Individual analysis of methods used to obtain parameters of pupil and iris follows after that. There are two methods of detection of center of pupil and pupillar boundary, one method determines center of iris and limbic boundary. Last method detects centers and boundaries of pupil and iris at one time. The end of this work is dedicated to analysis of results of designed methods. Analysis includes score of successfulness of detection, statistical analysis, discussion of changes in pupillary diameter depending on the light conditions and changes in position of center of pupil during constriction and dilatation of pupil.
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