Global ETD Search

21	Ny generation av GPS-transponder / New Generation of GPS-transponder Lind, Hampus, Flenéus, Lukas January 2016 (has links) Detta projekt har utförts på uppdrag av Saab Dynamics. Syftet med projektet var att skapa ett system för att ersätta den befintliga utrustning som fanns för att simulera radar vid testning av vissa vapensystem. Systemet byggdes upp med hjälp av GPRS, GPS och transportprotokollen TCP och UDP. Huvuddelen av arbetet berörde GPS och GPRS. Denna rapport är en redogörelse för systemets framtagning och de verktyg och metoder som användes, samt en fördjupning i ämnena GPS, GPRS och deras olika protokoll. Rapporten tar även kort upp alternativa lösningar till datasamtal. Slutsatsen som kan dras utifrån resultatet av detta projekt är att systemet fungerar och kan vara användbart i framtiden efter vidareutveckling. / This project has been carried out on behalf of Saab Dynamics. The purpose of the project was to create a system to replace the existing equipment for simulating radar when testing certain weapon systems. The system was created using GPRS, GPS and the transport protocols TCP and UDP. GPS and GPRS were used the most. This report is a description of the system's design and the tools and methods used to create it, as well as an in depth look into the subjects of GPS, GPRS and their various protocols. The report also briefly discusses some alternative solutions that could have been used instead of data calls. The conclusion that can be drawn from the results of this project is that the system works and can be useful in the future with further development. gps gprs gsm nmea tcp udp raspberry pi computer communications azimuth elevation c c# at-commands wgs-84 com-ports sirf-binary raspbian gps gprs gsm nmea udp raspberry pi datorkommunikation bäring elevationsvinkel c c# at-kommandon wgs-84 com-portar sirf-binary raspbian Computer Sciences Datavetenskap (datalogi)
22	Real Time Positioning; Construction and implementation of a GPS-Communicator. / Realtidspositionering; Utveckling av en GPS-kommunikator. Darnell, Christian, Wilczoch, Christian January 2002 (has links) The first half of the Masters thesis is the result of a survey made on the behalf of the Swedish company KORDAB International AB. The survey includes an overview of different positioning systems and some wireless communication techniques available on the market today. Positioning systems discussed are GPS, DGPS, AGPS and GSM positioning. Mobile Internet connections through mobile phones and communication through radio modems are mentioned and described as examples of wireless communication techniques. Examples of techniques described are HSCSD, GPRS, UMTS and MOBITEX. KORDAB is in the starting blocks to implement a real time positioning feature into their own technical information system GEOSECMA. This survey will give them a base which will help them to decide on which system to use for this feature. The second half of the thesis includes parts concerning a prototype made to exemplify how KORDAB could implement the real time positioning feature into GEOSECMA. The NMEA 0183 protocol, reference systems and transformation are described to give the necessary background knowledge for the construction and functionality of the prototype. The prototype is a GPS-communicator made as an interface between a GPS-receiver and GEOSECMA and its functionality is also described in this second half of the thesis. Feasible applications are also discussed to show the possibilities real time positioning gives. One application discussed is “Zoom and Auto highlighting”. This application is designed to help user of GEOSECMA to zoom in the map and highlighting the nearest object at current location. Reglerteknik GPS RTK DGPS AGPS GSM-positioning Real Time Positioning TOA TDOA EOTD AOA GSM HSCSD GPRS UMTS Mobitex NMEA 0183 GGA GSV WGS84 SWEREF99 RT90 GPS-Communicator Reglerteknik Automatic control Reglerteknik
23	Real Time Positioning; Construction and implementation of a GPS-Communicator. / Realtidspositionering; Utveckling av en GPS-kommunikator. Darnell, Christian, Wilczoch, Christian January 2002 (has links) <p>The first half of the Masters thesis is the result of a survey made on the behalf of the Swedish company KORDAB International AB. The survey includes an overview of different positioning systems and some wireless communication techniques available on the market today. Positioning systems discussed are GPS, DGPS, AGPS and GSM positioning. Mobile Internet connections through mobile phones and communication through radio modems are mentioned and described as examples of wireless communication techniques. Examples of techniques described are HSCSD, GPRS, UMTS and MOBITEX. KORDAB is in the starting blocks to implement a real time positioning feature into their own technical information system GEOSECMA. This survey will give them a base which will help them to decide on which system to use for this feature. </p><p>The second half of the thesis includes parts concerning a prototype made to exemplify how KORDAB could implement the real time positioning feature into GEOSECMA. The NMEA 0183 protocol, reference systems and transformation are described to give the necessary background knowledge for the construction and functionality of the prototype. The prototype is a GPS-communicator made as an interface between a GPS-receiver and GEOSECMA and its functionality is also described in this second half of the thesis. Feasible applications are also discussed to show the possibilities real time positioning gives. One application discussed is “Zoom and Auto highlighting”. This application is designed to help user of GEOSECMA to zoom in the map and highlighting the nearest object at current location.</p> Reglerteknik GPS RTK DGPS AGPS GSM-positioning Real Time Positioning TOA TDOA EOTD AOA GSM HSCSD GPRS UMTS Mobitex NMEA 0183 GGA GSV WGS84 SWEREF99 RT90 GPS-Communicator Reglerteknik Automatic control Reglerteknik
24	Telemetrie pro formuli Dragon IV / Telemetry for Dragon IV Formula Bezdíček, Jan January 2014 (has links) The aim of this master's thesis was to design and construct complete telemetry system for the student formula Dragon IV constructed for international Formula Student competition. At first, the work deals with the measurement of the physical quantities, telemetry system and automotive sensors of the formula, their mutual communication and communication with the CAN bus. It also describes the procedure of hardware design including choosing right inertial sensors and a GPS module and their using in telemetry system. The work contains materials for production of two-layer printed circuit board extending the microcomputer BeagleBone Black on the inertial sensors and the GPS module. The bigger part of the telemetry system is the firmware for hardware and software for the computer user. Both written in programming language C++ and C# are included in this work as well. This user application serves for wireless receiving data from the hardware and their showing and logging. In addition this user application can be used for wireless hardware configuration. The final product is the complete telemetry system and it is suitable for selling to end customer.
25	Sledování polohy s využitím GPS a PDA / Position Tracking with GPS and PDA Černohorský, Vilém January 2008 (has links) This work presents steps in creation of remote position tracking application. Document introduces history of geographical positioning and navigation, and describes development of navigation from primitive utilities to complex radio navigation systems. Global Positioning System is described in more detail including NMEA protocol used by GPS receivers. This work also presents several current navigation applications. Based on obtained information work presents analysis, object-oriented design and implementation of remote position tracking system.
26	Synchronizace času pomocí GPS / Synchronization of the time using the GPS Švábeník, Petr January 2010 (has links) This thesis discusses about using the worldwide satellite system GPS for time and frequency synchronization. This thesis presents study about basic principles of the GPS system, its segments and ways of using this system. Some GPS receivers suitable for receiving the time marks (pulses) used for time synchronization are described. Thesis contents designing of the circuit that will receive time marks and it will digitalize and record external signal and send it with precision time information to PC for displaying and post processing. Thesis also discusses about both hardware and software development of the synchronization module and software used in PC.

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