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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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Pump Control System
Streit, Jakub ; Šťastný, Ladislav (referee) ; Bradáč, Zdeněk (advisor)
The goal of this thesis is design of universal system for motor control. This device must be able to control at least 4 motors, stepper motors or DC motors. Wired, or wireless communication, using IEEE 802.15.4, is mandatory. The System is based on modular concept. The Basic modules are Control module, Communication module, Connection module and Power module. The system was tested in the control of fertilizer dosing pumps in the greenhouse
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ZigBee Protocol for Wireless Sensor Networks
Bartek, Lukáš ; Nagy, Jan (referee) ; Zbořil, František (advisor)
The aim of this work is to analyze ZigBee standard - its characteristic, potential use and testing its implementation in simulators. This work is consists of four sections. The first section analyses the structure of IEEE 802.15.4 and ZigBee protocol stack means of communications, security and development of this standard. The second section describes features of available simulators. The third section is the manual for creating simulation environment in the selected simulator. The final section shows practical preparation, process and result interpretation. The goal of this project is evaluation of tested simulator for education and development.
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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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Tracking Air Pollutants by Using Wireless Sensor Network
Válek, Tomáš ; Šimek, Václav (referee) ; Tříska, Vít (advisor)
This thesis discusses design and production of a prototype of a device and implementation of a firmware for this device. Its function is to wirelessly monitor a concentration of pollutants like carbon monoxide and propane-butane in an atmosphere. Motivation is to allow parking of vehicles with engine gaseous fuels in underground collective garages for public use according to ČSN 73 6058 standard. The prototype of the device has been designed so that it could be used not only in collective garages but also in garages of family houses. The device was successfully designed, produced and programmed so that it can be deployed in real-world conditions.
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Wireless Voting System Based on IEEE 802.15.4/Zigbee
Albrecht, Pavel ; Šimek, Václav (referee) ; Strnadel, Josef (advisor)
In the work, a detail description of the wireless IEEE 802.15.4/ZigBee protocol is presented along with the architectural design of the wireless voting system based on the mentioned technology. The voting system proposed in the work is based on the Freescale's 1321xNSK development kit. The problems related to the design and implementation of the system by means of the kit as well as the problems related to the record-management scheme using the application server, the data backup method and web-export functions including the views are described in the work. At the end of the work, the proposed system is analyzed from several points of view and its main characteristics are summarized.
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Node Location in the ZigBee Network
Capalini, Richard ; Očenášek, Pavel (referee) ; Trchalík, Roman (advisor)
The master thesis is concerned with problem of localization of nodes in wireless sensor network WSN implemented by ZigBee technology. The thesis provide description of ZigBee architecture involving signal description. The method of evaluating coordinates basically do not depend on used measuring methods. The method of fingerprinting is included in separated category based on only statistical processing of RSSI data. Determination of coordinates of mobile node always needs finding out range, signal time of arrival (ToA) or angle of arrival (AoA) in respect to anchors node given dimension magnitude. The author found out three possible solutions for range measuring and one solution for angle of arrival measuring useable in context of ZigBee wireless sensor network. Finally the author discuss possibilities and constraints of ZigBee network with used measuring type.
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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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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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