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Net for communication in a company
Sychra, Jakub ; Vaněk, Jiří (referee) ; Špinka, Jiří (advisor)
This work deals with accessible communications technologies and their possible usage in firms. It is necessary to have a survey about types and trends of communications technologies at proposal of communications network. It is important to choose the combination that is suitable with its reliability, achievement and price.
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Principles of the Wireless Standards Security
Vokál, Martin ; Ryšavý, Ondřej (referee) ; Očenášek, Pavel (advisor)
Computer networks are in the scope of the IEEE organization normalized by the 802 board which currently comprises six working groups for wireless communications. IEEE 802.11 for wireless local area networks, IEEE 802.15 for wireless personal area networks, IEEE 802.16 for wireless metropolitan area networks, IEEE 802.20 for mobile broadband wireless access, IEEE 802.21 for media independent handover and IEEE 802.22 for wireless regional area networks. This master's thesis focuses on a security analysis of particular standards, describes threats, vulnerabilities, current security measures and mutually compares wireless specifications from a security point of view. The conclusion is devoted to overall evaluation of the project, to its contributions, possible enhancements and continuation in the form of consequential studies.
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Multifunction Sensor
Tománek, Jakub ; Götthans, Tomáš (referee) ; Dřínovský, Jiří (advisor)
The aim of the diploma thesis is to get acquainted with possibilities of realization of a multifunctional sensor for agricultural purposes. The theoretical work deals with the principles of measurement of environmental variables. Subsequently, sensors are selected which can measure the environmental variables. The thesis discusses the possibilities of wireless communication. Attention is paid to the communication modules of the DIGI® manufacturer. The main part describes the physical implementation of the multifunctional sensor. Here is a detailed breakdown of what components are selected for implementation with adherence to general implementation requirements. At the end of the work is described a program serving multifunctional sensor.
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Control circuits of railway lift
Kopecký, Jan ; Lažek, Tomáš (referee) ; Huták, Petr (advisor)
This master thesis deals with the mechanical and electrical design of the drive of the inclined construction lift. Individual components are selected in the design. Furthermore, a theoretical research is carried out regarding wireless modules and logic controllers. The selection of sensors is made and the method of retrieving signals from sensors and converting them into iputs the control circuits is also outlined. A program is written in Arduino IDE that wirelessly controls the motion of a motor via variable frequency drive.
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Realization of the electronic locks control board
Bubák, Martin ; Macháň, Ladislav (referee) ; Čožík, Ondřej (advisor)
The bachelor's thesis deals with design of a control for electrical lock using the RFID technology. In the first part of this project is stated a description of the function of the RFID technology. There are described advantages of the RFID and also its classification. Further, will be described various types of electrical locks which can be used. The second part of the project is describing design of RFID electronics. There is stated specification of control microcontroller and its wiring with the RFID reading part and also with the switching part of the electrical lock. In this part is also listed description of design of circuit boards for control appliance and for RFID module. The last part of the project is dedicated to the software of microcontroller. There are stated block diagrams of created program and description of wireless communication and UART interface.
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Digital room thermostat controlled via internet
Bača, Martin ; Fuchs, Michal (referee) ; Dvořák, Jiří (advisor)
This diploma thesis deals with the ideological design and realization of digital room thermostat and a temperature sensor selection. The device is designed as three units communicating wirelessly. Outdoor unit and control units sensor provide data for the control circuit of microcontroller ATmega16. Microcontroller choose the boiler operation based on senzor data. Thermostat can be remotely controled
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Wireless Communication in Home Automation
Prokop, Michal ; Gutman, Jiří (referee) ; Hynčica, Ondřej (advisor)
This bachelor thesis is about how to make wireless communication network by IQRF technology which is intended for a home automation. It’s created by using DPA custom handler. This network can be made without programming thanks to DPA custom handler. This wireless network is realized by light model that is controlled by coordinator or by a button on a node. After that I measured latency and energy consumption on several various synchronous network and asynchronous network.
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Mobile robot control system
Jiruška, Jiří ; Kříž, Vlastimil (referee) ; Hynčica, Ondřej (advisor)
This thesis deals with wireless mobile robot control. The thesis is divided into two main parts. The first part deals with design and implementation of communication protocol based on IEEE 802.15.4 providing communication between robot and PC. The topic of the second part is mathematical description of DC motor and rpm controller design.
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Wireless Barcode Reader
Novák, Jan ; Vašíček, Zdeněk (referee) ; Strnadel, Josef (advisor)
This bachelor´s thesis is about barcode symbologies and wireless communication. Goal of this work was to design and construct wireless barcode reader. For communication are used OEM modules Aurel Wireless, working in SRD 868 MHz band. Receiver and transmitter are controlled by microcontroller HC908QY4 .
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