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Diagnostic sensors in transportation systems
Tylich, Ladislav ; Arm, Jakub (referee) ; Hynčica, Ondřej (advisor)
The objective of this thesis is to get familiar with wireless networks standards and with standard IEEE 802.15.4. and communication principle in wireless sensor networks in short distances and create overview of RF chips in (300-1000)MHz with their comparrison. To choosen transciever modul create software. Main goal is to create module to measure and logging data from vibration harvester. Assessments based on measurements.
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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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Localization in Wireless PAN
Polok, Zbyszek ; Šimek, Milan (referee) ; Hynčica, Ondřej (advisor)
This bachelor thesis deals with the problem of localization in wireless sensor network. First, ZigBit 900 Modules equipped with chip for wireless communication (AT86RF212) are used to measure the signal strength in the area of Brno University of Technology. The recorded values are then processed using trilateration localization techniques and Euclidean propagation methods. After detecting negative effects on the calculation of the position sought, a filtering method for the calculated values is proposed. In addition, an algorithm determining a sufficient number of reference values for loss rate is also designed to locate all the positions sought. By virtue of these algorithms the trilateration localization method is optimized.
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Wireless Sensor Network with Atmel AVR Microcontrollers.
Mráz, Ľubomír ; Kouřil, Jiří (referee) ; Šimek, Milan (advisor)
This diploma thesis describes the standard IEEE802.15.4 and Zigbee for wireless sensor networks. These norms are described in detail in the first two chapters. The main priority of the wireless sensor networks is to minimize the power of the devices and the price while maximizing the reliability of the data transfer. Minimum consumption is provided by the significantly lowered complexity in comparison to the standard wireless networks. Further, the design of the concept of the complex and universal hardware platform focused on intelligent building is described. Software implementation of those norms is described in the chapters five and six. Finally, comparison of the designed hardware platform and the other commercial platforms is described in the last chapter.
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Technology of Sensor Networks
Koval, Miroslav ; Očenášek, Pavel (referee) ; Trchalík, Roman (advisor)
This diploma thesis deals with sensor networking technology, namely about ZigBee. This work consists of two parts - teoretical and practical. The teoretical part is created by some chapters which describe protocols and standards which compose a bases to ZigBee technology. Some parts of this chapter compare ZigBee network with the other wireless solutions and deals with their features. Practical parts is based on properties of available ZigBee devices and summarize communication among sensor network nodes, own ZigBee application, application gateway design and its implementation for ZigBee network monitoring and control from Internet. The last chapter is devoted to discusion about problems and their solutions alternatively about suggestions of next study and improvement this project.
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Wireless lighting control
Pilmajer, Pavel ; Novotný, Radovan (referee) ; Levek, Vladimír (advisor)
Thesis deals with the issue of lighting technology control using wireless technology. Thesis includes a description of current possibilities of control light technology, methods of digital signal transmission using radio waves and protocols dealing with this issue are described. This thesis also contains a park aimed at the selection of suitable electronic components including the design of individual electronic blocks and printed circuit board. The conclusion of the thesis is the realization of electronic modules, including the creation of module software and measurement of achieved parameters under real conditions.
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Realization of laboratory exercise using the ZigBee system
König, Petr ; Hrabina, Martin (referee) ; Miloš, Jiří (advisor)
The bachelor’s thesis includes ZigBee layer architecture mainly Physical Layer (PHY) and Media Access Controlv Layer (MAC). It demonstrates their parameters in practical realization. Main part of the thesis is a creation of laboratory measurement protocol using development kit of Jennic company. Students will be familiar with ZigBee standard due to this laboratory exercise
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IPv6 for Wireless Sensor Networks
Polak, Martin ; Komosný, Dan (referee) ; Červenka, Vladimír (advisor)
This thesis deals with the issues 6LoWPAN protokolu and implementation of IPv6 on the specied platform. Introduction thesis deals with the explanation of wireless sensor networks. Next it was descibed 6LoWPAN protocol, which maps IPv6 on standard IEEE 802.15.4. The thesis further concentrates to exploration of possible operation systems, that are designed for sensor networks and then followed by comparison of their characteristics and advantages. The fth chapter is focused on he implementation of the operating system to the sensor node Iris, introduction Iris and with the structure of the operating system Contiki OS. At the end of thesis is description of the implementation of this system in the sensor node Iris.
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ZigBee in Building Automation
Liška, Radovan ; Šimek, Milan (referee) ; Honzík, Petr (advisor)
Improvement of wireless technologies is a natural consequence of the progress in the field of science and technology. Usage of wireless networks based on the ZigBee technology, which are capable of indepent operation in present form, providing detailed information about physical environment and process management, brings many advantages. On the other hand, there is a serious issue about commissioning. This Master's Thesis deals with introduction of ZigBee technology and its usage, describes issue about device commissioning and types of commissioning. The main part of the Thesis is my own proposal for solving this problem, proposing algorithm using the Bitcloud stack for Coordinator, End Device and Router and its demonstration at the application. Along with analysing the application there are described possible solutions for creating a new network, adding a new node into the existing network and changing a node. The result is a graphical application and firmware for each device. The result of succesfully associated devices in network is supported by the measurement.
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