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Performance of Anchor-Free Localization in Wireless Sensor Network
Nováček, Aleš ; Morávek, Patrik (referee) ; Šimek, Milan (advisor)
Many applications that use senzor data from a wireless senzor network require corresponding node position information as well, information from the senzors is useful only if node location information is also available. There are many ways to get information about location of senzor, but some are expensive and inefficient. My work presents fully decentralized algorithm AFL (anchor-free localization) for localization of wireless sensors. Aim of my master´s thesis is to describe main features and advantages of AFL and to create program that simulates localization process.
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Localization and its influence on other processes in a wireless network
Zemánek, Karel ; Šimek, Milan (referee) ; Morávek, Patrik (advisor)
The masters thesis concerns localization and its influence on other processes in a wireless network. The first part of the thesis is devoted to the study of localization algorithms in wireless sensor networks. The second and third part is devoted to the description of hierarchiacal aggragation and Greedy perimetr stateless rating (GPSR). The fourth part presents implementation of GPSR protokol into the MATLAB simulation tool. It contains the description of specific m-files, that are use for simulation. The fifth part deals with the simulation itself. And the final part presents simulation results.
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Localization protocol for WSN with support of node mobility
Votava, Martin ; Šimek, Milan (referee) ; Holešinský, Pavel (advisor)
Work is focused on wireless sensor networks.The main theme is the mobility and localization in these networks. This work describes different methods and capabilities of mobile and localization schemes. This work describes a new localization protocol for wireless sensor networks. Finally, there is included a new protocol in the simulation at Network Simulator 2 and evaluate the results obtained.
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Research of Localization Algorithms in Wireless Sensor Networks
Holešinský, Pavel ; Morávek, Patrik (referee) ; Šimek, Milan (advisor)
This diploma thesis is focused on research of localization algorithms. Each developed localization algorithms are generally application specific. Because of application requirements diversity, many variants of localization algorithms exist. In case of finding appropriate localization algorithm for concrete application usability, existence of real condition simulation environment is useful. Development of this simulation environment was made simultaneously with both localization algorithms. At first, survey of available localization technic was performed and their summary was listed. Further work was aimed on research of two localization algorithms. Both of them use triangulation mechanism to determine unknown node position. This mechanism is based on measurement of distance to three reference points with known position. It would seem that both algorithms are similar, but simulation shows their difference and presents their suitability for diverse conditions.
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GPS based Localization using the Java ME application
Figurny, Radek ; Morávek, Patrik (referee) ; Růčka, Lukáš (advisor)
The task of the Master's thesis has been to develop the MIDlet, which is able to receive data from an external GPS module via Bluetooth. Data are received in the NMEA 0183 format and are processed to extract longitude, latitude, elevation, velocity, number of visible satellites and measurement accuracy of longitude, latitude and elevation. Users have a possibility to save their actual location with a short description to the cell phone’s memory. The MIDlet is also able to save a user defined way-point and navigate to this way-point. The MIDlet itself was developed in the Netbeans IDE with a software development kit (SDK) made by Nokia company. This kit is designed for the Symbian OS s60 3rd edition FP1, which contains a s60 emulator and a s60 MIDlet for a direct compilation in the cell phone. The MIDlet is made of three main parts. The first part shows a longitude, latitude, elevation, velocity, longitude and latitude measurement accuracy, date and time. The second one shows a direction of north, latitude and longitude. The last one shows a direction to the selected way-point and a distance to this location. In theoretic part of the thesis there are described the GPS navigation system, Bluetooth system, geodetic system WGS 84 and programing language Java and its part Java ME.
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Application of ArcGIS Program in Telecommunication Networks
Štohanzl, Pavel ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
This thesis deals with the issues of locating and marking both metalic and optical transmission network. The choice of an appropriate program for creation and management of map document is discussed. In the following chapter some necessary adjustments to the ArcGIS ArcView program are made so that it is applicable to the field of telecommunication networks. The last chapter addresses the design of documentation options in optical transmission network. For metalic cables the possibilities of attaching transmitter to a cable and locating the induced magnetic field is covered. Among the methods for finding optical cables we list ways of locating through the use of markers, GPS location and added metalic conductors. Fundamentals of markers and their types are thoroughly analysed. In the chapter on GPS we examine how this system works and evaluate its accuracy. The next chapter enumerates requirements that a program should meet. We analyse properties of considered programs and evaluate them with respect to these requirements. For a chosen program the possibilities of enriching it with selected map document are discussed. For these map document, information about their applicability and source is presented. We also quote the cost for these maps wherever possible. The last chapter treats ways of documenting optical networks.
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Localization by SICK range-finder
Zháňal, Jan ; Věchet, Stanislav (referee) ; Marada, Tomáš (advisor)
Motion and localization are basic attributes of mobile robots in the environment. In this thesis we focus on localization and also mapping environment by one robot (named as well SLAM) which will use laser range-finder SICK. There will be stated a lot about activities related to robot movements’ i.e. odometry, maps and their making. There is Kalman Filter and his use in this document. In the end there will be made model of the SLAM method made by Matlab program.
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Basics search for simultaneous localization and mapping.
Gärtner, Jan ; Marada, Tomáš (referee) ; Věchet, Stanislav (advisor)
This work deals with methods of simultaneous localization and mapping using in mobile robotic problems in the world. Main Goal of the work is describe existing and common using methods of simultaneous localization and mapping. The first part of the work deals with parting and description of each subproblems of simultaneous localization and mapping. The second part is note concrete methods of simultaneous localization and mapping. The third part is attending to practical application of simultaneous localization and mapping using in robotic tasks in the world. The last one is devoted to robotic application within the Faculty of Mechaniacal engineering at Brno Technical University and practicability apportionable methods for the applications.
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