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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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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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Data collection by wireless technology ZigBee
Teplan, Miroslav ; Burget, Radim (referee) ; Koutný, Martin (advisor)
This bachelor study deals with communication standard IEEE 802.15.4, wireless technology ZigBee and describes its using in collective data collection area and telemetry. Teoretical part is formed by some chapters which detailing standard IEEE 802.15.4 and ZigBee technology and some chapters which detailing communication unit design from look peripheral solving and implementation firmware. Practical part have to do with itself realization communication unit for data gathering from measuring devices. It is based on circumscribed solving. Further smoothing - out proposal frame system in which the would be used technology ZigBee.
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CCD camera with wirelles interface
Hynčica, Tomáš ; Fiedler, Petr (referee) ; Bradáč, Zdeněk (advisor)
The work is dealing with the problem of wireless transfer of visual information from CCD camera. A circuit board for the camera interface is designed and realized. The wireless communication is based on the IEEE 802.15.4. Software for components of the system is developed.
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Lightening control system with wireless interface
Hrbáček, Jan ; Srb, Jan (referee) ; Bradáč, Zdeněk (advisor)
The goal of the bachelor's thesis is to design a lightening control system with wireless interface intended to be used under conditions not allowing permanent control wiring. The system consists of one coordinator and several end devices communicating in accordance with the IEEE 802.15.4 Standard. The thesis includes background research on the theme and possible solutions, description of the circuit and the mechanical construction and analysis of the devices application firmware. The resulting devices built according to the thesis were continuously improved, so that the design is now fully functional and reliable.
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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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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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Zigbee node for monitoring of electric energy consumption
Štefany, Martin ; Mráz, Ľubomír (referee) ; Šimek, Milan (advisor)
Master's thesis designs a device for monitoring of electric energy consumption with ability to send measured data wirelessly using ZigBee technology. Theoretical part describes basic principles for measuring electric power and energy and also a possibility of digital measurement. Thesis provides short overview of already existing solutions for electric consumption measurement available on the market as well. Further the ZigBee standard is described together with one of its software implementations named BitCloud from Atmel Corporation. Design of the device deals with the selection of suitable integrated circuit for the consumption measurement and optimal voltage and current sensors. Then also its connection with the wireless module named ZigBee using SPI bus, power supply for the entire device and also the design of PCB. There is also a firmware implementation for the designed device based on BitCloud. Description of the firmware together with calibration process implemented is also part of the thesis. Finally, basic device testing and packet analysis of communication between designed device and ZigBee network coordinator is described.
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Analyzer of IEEE 802.15.4 radio channels
Pokorný, Jiří ; Číž, Radim (referee) ; Šimek, Milan (advisor)
The master’s thesis deals with development of the radio channel analyser operating in the unlicensed 2.4 GHz band according to IEEE 802.15.4 standard. The analyzer will contain two basic functions, namely energy detection of channels and analysation of selected channel. Detection of energy will be solved by selection between simple graph and text list on display. Based on information about the occupancy of channels the user can decide which channel would be set up. During the receiving of valid frame the source address, signal strength and signal quality will be stored. At the end the processor will show these data on display. For controlling the device will be installed two LEDs and four buttons.
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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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