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Laboratory development kit for wireless networks
Marák, Jiří ; Caha, Tomáš (referee) ; Krajsa, Ondřej (advisor)
The aim of this work is to design and implement a laboratory development kit for teaching wireless networks based on IEEE 802.15, IEEE 802.15.1, IEEE 802.11 standards and similar technologies. First are described WPAN and WLAN wireless technologies. In the next part, the work deals with the overall concept of the development kit and the subsequent selection of suitable components, and finally the design of its own development kit and the design of the printed circuit board in the program Autodesk Eagle.
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Low-power sensor networks
Frank, Jan ; Šimek, Milan (referee) ; Hynčica, Ondřej (advisor)
This work deals with measuring and optimization of power consumption of nodes in sensor network. It suggests and compares different methods of power saving for sensor network nodes, defines mathematical model of power consumption of node and implements it into Matlab. This work also includes a measure of power consumption of module Zigbit MNZB-900-B0. This module communicates in IEEE 802.15.4 standard. Measurement is used to verify accuracy of mathematical model. This work also presents basics of energy harvesting and development of system, which is using this method.
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Wireless electronic security and surveilance system
Vichta, Michal ; Frýza, Tomáš (referee) ; Prokopec, Jan (advisor)
This bachelor thesis is engaged in proposal and implementation of wire less safeguarding system. The proposal is consisting from study of single components wire less safeguarding system like for example: detectors, central, GSM communicator and mobile station. The bechelor is engaged familiarization of technologies for formation sensing element networks and proposal (principal) diagram wire less systém of familly house. For realization wire less network is exploit standart IEEE 802.15.4 ZigBee on a frequence 2,4 GHz and radio outside on a work frequence 868,3MHz. Beside terminal arrangement and near co-ordinator is exploiting Zigbee program units from Meschnetics company too. Next to radio outsider is exploiting wire less base extension station from Satel company. Both of wire less are connected with a central of wire less safeguarding system and conseguently connected with GSM communicator from Satel company, whitch on is concernig abouth sendings of messages abouth loom of wire less safeguarding system towards to user on mobile station.
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HW and SW for Ethernet-to-IEEE802.15.4 bridge
Růžička, Tomáš ; Štohl, Radek (referee) ; Fiedler, Petr (advisor)
The present work includes theoretical information about network protocols, Ethernet (TCP/IP) and IEEE 802.15.4.Work also includes design of the converter realiyed using the development kit RCM 3365 from the Rabbit Semiconductor company. The converter works with the UDP, which can be converted to packets of wireless standard, or from a wireless packet can create a UDP packet. The wireless part was replaced with a serial interface RS-232, after which the packets travel in wireless standard IEEE 802.15.4. To create and monitor data on the Ethernet and RS-232 three external programs are used.
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Packet Analyser for Wireless Sensor Networks with Ethernet Interface
Leixner, Martin ; Šimek, Milan (referee) ; Mráz, Ľubomír (advisor)
The aim of this work is study the standard IEEE 802.15.4. Implement a packet analyzer for the frequency band 2.4GHz and sub-gigahertz band. The analyzer will provide accu- rate time stamp to the received packets. It will operate remotely and controlled by a web page. Implemented analyzer will work with the inspection software Wireshark. Finally, evaluate the parameters of the proposed packet analyzer.
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Application for Zigbee Device Configuration
Brož, Kamil ; Morávek, Patrik (referee) ; Šimek, Milan (advisor)
The diploma thesis includes the ZigBee networks and compares them with other PAN IEEE 802.15.4 networks. It describes the formation of ZigBee networks. It describes physical, MAC, network and application layer in the form of Bitcloud. Thesis includes practical implementation in the form of ZigBee application BeeCon which allows set network parameters on Iris modules.
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Multimedia Support for Sensor Network Education
Martínek, Radim ; Očenášek, Pavel (referee) ; Trchalík, Roman (advisor)
The aim of this bachelor's thesis is to support development of applications, which are suitable for operations in a sector of a sensor network. It provides for theoretical and practical knowledge of a wireless sensor network, so that any student of information technology can be easily acquainted with its advantages and disadvantages. It uses technology ZiGbee, built on standard IEEE 802.15.4 as the main platform. This technology is thoroughly analysed in the text. An essential component of the thesis is also a website, which includes all the important information mentioned within the scope of this work.
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Modern wireless technologies - ZigBee
Krajíček, Tomáš ; Koutný, Martin (referee) ; Skořepa, Michal (advisor)
This bachelor work tells about wireless security of house – ZigBee. It is introducing problems of wireless technology based on standard IEEE 802.15.4, comparing to another wireless technologies and presenting potentionalities of it’s use and areas of it’s excercise. The work is related to creation of simulated model in OPNET Modeler environment, which simulates a field of sensors. The purpose of the whole effort is to state time-delay of information transfer, specify reliability of the transfer and lay down energy intensity of the process runned over the area of sensors.
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Analysis of ZigBee standard in the NS-2 simulation tool
Stračár, Ivan ; Šimek, Milan (referee) ; Botta, Miroslav (advisor)
The semestral project deals with the simulation of wireless sensor networks based on ZigBee standard in Network Simulator 2. Project is divided into two parts - theoretical and practical. The theoretical part consists of a description of standard ZigBee, communication protocols and communication used by this standard. The practical part describes the simulation tool, configuration of wireless networks in this tool, the actual simulation and evaluation of throughput, delay, loss rates and energy consumption using network metrics. Two topologies were simulated defined by the ZigBee standard. It was the STAR and the MESH. Changes were observed in the parameters of the network TCP and UDP transmission in these topologies. Evaluated metrics are calculated for changes in parameters of the framework (BO, SO). The changes were most expressed in the consumption of the energy by the network by the combination BO, SO. During the simulation, the data rate of the network automatically changed until the loss rates of the network was smaller than 1 %. In order to achieve optimal network throughput. Direct difference between TCP and UDP transmission could not be compared because the simulation results were generated by different data rate nevertheless influence of parameters on the properties of super network framework were confirmed.
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Sensor Modules for ZigBee Wireless Network
Ochmann, Tomáš ; Slaný, Karel (referee) ; Šimek, Václav (advisor)
The aim of this thesis is to design and implement modules for wireless sensor network ZigBee. These modules could communicate together and share information about measured values. The network will be managed by coordinator of network, which will process data from sensor modules and will decide about next steps around the network.
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