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DGNSS of Korea, South Korea's industrial positioning Leading to the Ministry of Maritime Affairs and Fisheries Satellite Navigation Central Office

NTRIP(Network Transport of RTCM via Internet Protocol)

  • The existing DGPS transmits GPS error correction signal using a medium-wave signal medium, whereas NTRIP transmits the GPS correction signal via the Internet network.
    • RTCM(Radio Technical Committee for Maritime Service)
      • formats the GPS correction signal transmission data
  • Supports real-time GPS data via the Internet
    Application Protocol
  • NTRIP can access the wireless Internet via the HPPT (Hypertext Transfer Protocol)-based mobile IP network.
    • Commercialized as DGPS service in Europe, especially in Germany
  • NTRIP Server
    • An HTTP server transmitting NTRIP source data to NTRIP caster
  • NTRIP Caster
    • Simultaneous distribution of data to up to 1,000 users
  • NTRIP Client
    • Receives DGPS data via a terminal box that can access the Internet
    • Floating IP network is possible as Internet (TCP/IP) is used.

Conceptual Diagram of NTRIP Service

DGPS data → Server → Caster → Internet → Terminal box