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GPS data usability in mobile robot navigation problem
Novák, Pavel ; Věchet, Stanislav (referee) ; Krejsa, Jiří (advisor)
This work is focused on problems of the GPS/DGPS receiver precision used by mobile robot for navigation in outdoor environment. The first part deals with theoretical analysis of GPS, description of it´s functions, errors and their influence on measurements accuracy. Second part deals with practical measurements performed at two locations with different types of obstacles restricting the view to the sky and using the refining methods of measuring the DGPS or so-called differential GPS. The last part of study presents the measured results and its analysis.
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Minidarpa robot - navigation system design
Kuna, Zdeněk ; Žalud, Luděk (referee) ; Kopečný, Lukáš (advisor)
This bachelor’s work is devided into two parts. The first part is theoretical, because it includes the principles of satellite navigation and the metodies of giving precision to position.The second part is aplication part and it describes the navigation subsystem of hardware and software equipment. The result of this bachelor’s work was made a navigation subsystem for robot, designed communication and implemented navigation algorithm into the robot.
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Differential GPS
Madron, Tomáš ; Veselý, Miloš (referee) ; Žalud, Luděk (advisor)
This master’s thesis is the design of the system of the differential GPS, creation of the software for basic wireless communication between 2 GPS receivers, and practical tests of the designed system. Parameters and characteristics of system were determined and they should inform us better about the appropriateness of the designed system for navigation of a mobile robot in outside conditions.
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Sattelite Navigation and Compasss Data Fusion
Maceček, Ivo ; Kopečný, Lukáš (referee) ; Žalud, Luděk (advisor)
Theoretical information about different satellite navigation systems used for determination of position. Special attention is attended to system GPS. There are consulted main principles of the GPS and some error sources. Application of differential GPS for minimization of these errors is discussed. Next part is about examples of basic principles for measuring earth magnetic field. Last chaps are about practical realization of mentioned DGPS, which is applied for outdoor mobile robot navigation. There is described hardware structure, software utilities and application of an aided tool for GPS - electronic compass. Some practical measurements and results are presented.
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System for processing of GPS data from multiple mobile devices
Jurča, Josef ; Červenka, Vladimír (referee) ; Lattenberg, Ivo (advisor)
The aim of this thesis was to create an information system which consists of a mobile application, server and web application. Mobile application is designed for operating system Android and it is used for sending GPS coordinates of mobile devices to the server. These data are later processed by server and stored in database. Web application displays the current location of mobile devices in user group on a map, it also displays location history and statistics. Accuracy of the station location can be enhanced by using DGPS assuming that one of stations in a group does not change its location. The system was designed and then developed using modern web technologies and frameworks including PhoneGap, Ionic, Node.js, Express, MongoDB, Mongoose and AngularJS. Further measurements, that were performed, are supposed to present the effect of DGPS to location accuracy determination.
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Position Improvement Using Differential GPS
Košťál, Jaroslav ; Hrubý, Martin (referee) ; Novotný, Tomáš (advisor)
The bachelor thesis describes techniques of precision of a position using a differential GPS. The theoretical part provides with basic terminology on classical and differential GPS and with a blueprint for implementation of the differential GPS. The aim of the practical part is the implementation of the blueprint per se using two suitable GPS modules with data processing on the station in real time and creation of a graphical interface. The final determining of the position should be more accurate than one using a classical GPS.
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Robot Navigation with Differential GPS
Doležal, Jan ; Rozman, Jaroslav (referee) ; Luža, Radim (advisor)
This bachelor's thesis describes the realisation of method for improving the accuracy of GPS navigation, so-called differential GPS, and its implementation in the form of a package for Robot operating system (ROS). A programming library RTKLIB, which deals with methods of increasing the accuracy of GPS navigation, is used in the package. Created solution was subjected to measurement of precision and accuracy of calculated position. This proved that the differential GPS method provides more accurate position coordinates and makes more sense for use on robots than conventional GPS.
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Vplyv pracovných podmienok stroja na presnosť stanovenia jeho polohy
Petrek, Dávid
The thesis deals with the possibility of fixing the position of the machine through the use of satellite systems for agriculture. It is divided into theoretical and practical part. The theoretical part includes three chapters, which are described most famous satellite navigation systems which include GPS systems GLONAS, Galileo and Beidou. Most attention is paid to the GPS system, the work is described its history, functions, each system accuracy, influences affecting the precision guidance signals and correcting their mistakes. Error correction is divided into DGPS, RTK and VRS RTK systems. This is followed by describing the indicators that affect the accuracy of broadcast signals from space satellites. The last theoretical part describes the benefits of parallel guidance of machinery in agriculture in collaboration with boundary management. The practical part is focused on field trail measure, which described the impact of working conditions stand for precision guidance for land assessment and evaluation of the measurement results.
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System for processing of GPS data from multiple mobile devices
Jurča, Josef ; Červenka, Vladimír (referee) ; Lattenberg, Ivo (advisor)
The aim of this thesis was to create an information system which consists of a mobile application, server and web application. Mobile application is designed for operating system Android and it is used for sending GPS coordinates of mobile devices to the server. These data are later processed by server and stored in database. Web application displays the current location of mobile devices in user group on a map, it also displays location history and statistics. Accuracy of the station location can be enhanced by using DGPS assuming that one of stations in a group does not change its location. The system was designed and then developed using modern web technologies and frameworks including PhoneGap, Ionic, Node.js, Express, MongoDB, Mongoose and AngularJS. Further measurements, that were performed, are supposed to present the effect of DGPS to location accuracy determination.
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Position Improvement Using Differential GPS
Košťál, Jaroslav ; Hrubý, Martin (referee) ; Novotný, Tomáš (advisor)
The bachelor thesis describes techniques of precision of a position using a differential GPS. The theoretical part provides with basic terminology on classical and differential GPS and with a blueprint for implementation of the differential GPS. The aim of the practical part is the implementation of the blueprint per se using two suitable GPS modules with data processing on the station in real time and creation of a graphical interface. The final determining of the position should be more accurate than one using a classical GPS.
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