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Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

Networked DGPS via Internet. Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005. Do we need networked DGPS? EuroNav DGPS network software Internet and geodetic data Conclusions.

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Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

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  1. Networked DGPS via Internet Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  2. Do we need networked DGPS? EuroNav DGPS network software Internet and geodetic data Conclusions Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  3. S/A ~ 50-100m  5 – 15m • WADPS  1 – 2 m • - EGNOS (summer 2005) • - ESTB/WAAS (working) • - SISNeT (higher availability) • single base station DGPS  0.5 – 2m • - inhomogeneous or local only coverage http://www.ga.gov.au/nmd/geodesy/argn/saplots/darw_hat.gif Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  4. User requirements for broadcast services • ~ 5 m current car navigation, ... • ~ 1 m lane accuracy in car navigation, ... • ~ 0.5 m forestry, farming, aviation, ... • ~ 0.01 m geodetic users, science, ... • > 5 m absolute GPS • 5 m – 1 m DGPS • ~ 0.50 m networked DGPS • < 0.50 m RTK Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  5. DGPS users not interested in raw position • integration in business processes  solutions • acceptance depends on pricing and savings • market requires reasonable price and easy access • few reference stations • cheap communication (provider and user) • possibly densification with RTK when required Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  6. Do we need networked DGPS? EuroNav DGPS network software Internet and geodetic data Conclusions Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  7. EuroNet GNSS Software • full featured single station GNSS processing software • module for generating network based DGPS • internet support for data acquisition and data export (NTRIP) • raw data management and distribution (together with EuroRef) • source code available, cooperations possible • soon: higher accuracy (networked RTK) Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  8. Hungary – Kaposvar Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  9. Hungary – Kaposvar Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  10. Hungarian test • 5 reference stations enough for whole country • homogeneous coverage • availability depends on redundance (no single point of failure) • „With the help of this sofware reference station networks can be densified with lower budget and single-station failures can be handled without significant performance degradation.“ • Tamás Horváth (FÖMI-SGO) Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  11. WWW based monitoring • display of software states (e.g. data availability) • monitoring positioning • display ionospheric influence (RTCA based) • history for comparisons • monitoring satellite visibility (station shadowing) • remote access • . . . Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  12. Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  13. Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  14. Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  15. Do we need networked DGPS? EuroNav DGPS network software Internet and geodetic data Conclusions Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  16. Internet based (NTRIP) raw data delays are ~ 1-2 seconds Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  17. Why using the Internet for data transfer? • available nearly everywhere • standardized protocols (TCP/IP, RTCM-NTRIP) • cheaper than most other solutions • better availability using redundancy • remote administration • easy monitoring • Why not? • Hacking, viruses  security concept required Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  18. Reference station: NtripS 05 • GNSS receiver drivers • generating RINEX • direct NTRIP upload • WWW administration • special hardware for long maintenance freedom • security enhanced software • automatic updates • developed in cooperation with Internet Media Solutions Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  19. EuroRef Software • flexible UNIX based reference station software • supports lots of receiver types, data types and settings • support for internet based real time data access • minimum hardware requirements (100MHz systems work fine) • export to standard formats (e.g. RINEX) • sold seperately from NtripS 05 as well Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  20. Do we need networked DGPS? EuroNav DGPS network software Internet and geodetic data Conclusions Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  21. Networked DGPS via Internet: • easy, cheap, reliable, homogeneous • cooperations between data sources and service providers • DGPS networking increases accuracy and reliability • many advantages for controling and monitoring • EuroNav provides • EuroRef reference station software • EuroNet DGPS network software • NtripS 05 reference station hardware Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

  22. Thanks for your attention and feel free to ask. http://www. .de/ dirk.stoecker@euronav.de Dipl.-Ing. Dirk Stöcker EuroNav Service GmbH CGSIC/IISC 14-15.03.2005

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