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Wireless Signal Transmission of DMX512 Interface
Polóni, Pavol ; Jaroš, Jiří (referee) ; Šimek, Václav (advisor)
Master's thesis deals with design and implementation of a system for wireless transmission of DMX signal 512, which is primarily designed for the management of lighting effects. Its electrical specification is based on the EIA485 standard. Text of the work describes the design stage. First is the issue of implied actual protocol DMX 512 or EIA485. Next sign on selecting a suitable architecture for wireless transmission, management and compilation of the block diagrams. Describes the operation of the component selection and circuit implementation of the scheme, which is using the DPS Eagle compiled. In conclusion, this work is to evaluate the results of the proposed system and showing the way to its further development so that it can be realistically implemented in practice.
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Microelectronic Wireless Networks for Telemetry and Buildings Automation
Šulc, Vladimír ; Sýkora, Jiří (referee) ; Zeman, Václav (referee) ; Kuchta, Radek (advisor)
The thesis deals with a microelectronic wireless networks for telemetry and building automation in terms of energy consumption related to the communication in wireless networks. Assumption, mesh topology is optimal topology for wireless networks for telemetry and building automation, was proven and relation between energy consumption and devices management was shown and functional abstraction related to the energy consumption was described. Several advanced techniques and solutions on physical and network layers were proposed to increase network reliability and decrease power consumption. Proposed techniques can be easily implemented.
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Java Sun SPOT sensor nodes
Malina, Karel ; Komosný, Dan (referee) ; Holešinský, Pavel (advisor)
This thesis deals with the use of Java Sun SPOT sensor nodes for multipoint wireless temperature monitoring and regulation through these nodes. The theoretical part is the description, composition and operation of sensor nodes Sun Spot Java. In the practical part there are description of programmed applications in the NetBeans IDE for a wireless temperature monitoring, battery capacity and their views on a host computer in the form of a graph. In the second part of the practical section is described how temperature can be regulated using Sun SPOT nodes.
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Data acquisition by Zigbee wireless technology
Kubíček, Lukáš ; Šilhavý, Pavel (referee) ; Koutný, Martin (advisor)
The bachelor thesis deals with a ZigBee wireless technology and focuses on the potential use in the sensor networks. This thesis addresses both the structure and basic properties of ZigBee standard and possible use of this application in practice. The main part of this work is implementation of the sensor networks using ZigBee development kit of Jennic company. As an example of the practical use of ZigBee technology this network is connected to a computer in which data is collected from each sensor using the database and then through a PHP script presented on the Internet. Problem solving in this thesis focuses primarily on the simplicity and universality of the resulting applications.
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The utilization of wireless modules for data acquisition
Machů, Petr ; Mácha, Tomáš (referee) ; Martinásek, Zdeněk (advisor)
In the bachelor‘s thesis I deal with modern methods of wireless data transmission in decentralized wastewater treatment. I suggested three different architectures and various types of wireless modems related to them. Then I design the experimental workplace with the convenient architecture for an autonomous network. For data collection I use PLC (Programmable Logic Controller) Foxtrot series with the central unit of CP-1005 and I use two modems Conel CDL 800 operating in the unlicensed band 869 MHz for wireless transfer. In the Mosaic I design a program for reading inputs from wastewater treatment plant and maintenance of serial channel, in Radwin program I configure wireless modems for the point-point transfer. I present Hyperterminal configuration and delivered date are displayed in it. Finally, I design applications in PHP language that converts data into a graphic form. In conclusion, I present opportunities for further development and improvement of the network.
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System for digital short-range wireless communication
Rébl, Miroslav ; Kolka, Zdeněk (referee) ; Tošovský, Petr (advisor)
This project includes the design of the System for digital short-range wireless communication. The methodology of the communication between net only one device type based system is proposed. The thesis describes system communication rules and used ways for protection of a correct transmission. Furthermore,the project descibes realizasion of the digital wireless communication with selected functions.
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The monitoring system for smart concrete construction condition
Brouček, Jan ; Šteffan, Pavel (referee) ; Macháň, Ladislav (advisor)
This thesis describes designing of a wireless system which allows to transmit measured data of sensors made of smart concrete. Measured data are transmitted from measuring points to the collecting unit, which stores them, and pass them to the server which is connected in the Internet network. The design of the system is focused to achieve low power consumption of all used components to provide the longest possible operation time, when using primary lithium cell. The design should be also able to provide possibility of easy modification of the measuring points.
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Unit for wireless transmission of electrical energy
Jelínek, Aleš ; Kopečný, Lukáš (referee) ; Žalud, Luděk (advisor)
The aim of this work is to prove the practical applicability of the concept of contactless energy transfer using induction coils. The first part deals with the mathematical model and theoretical proof of the concept being able to work in practice and describes the process of detecting resonance of receiver circuit on transmitter side. Next chapter describes hardware solution of the experimental prototype. The last part contains measurement results of a coupling coefficient of coils and discusses performance and notable features of the prototype.
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