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Published byElwin Bates Modified over 9 years ago
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NTRIP Demo SatRef Launch to Gov’t users 21 June 2006 Kenny CHAN – ALS/G(1)
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Why NTRIP? Using DGPS / RTK Require Real-time Delivery of GPS data & corrections Existing modes of delivery: 1-to-1 connection – GSM/Radio linkage Radio Broadcast – e.g. Kau Yi Chau DGPS Satellites – e.g. WAAS Geo-stationary Satellites SatRef GSM Connection GPRS with customized Pocket PC program
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Why NTRIP? Using Internet NTRIP – “Networked Transport of RTCM in Internet Protocol” RTCM standard since September 2004 Open, generic, non-proprietary application-level protocol Advantage of using Internet Ubiquitous: Anytime, Anywhere, Live! Network independent Wired Internet via Phone/Data Line / Power Line / Cable TV … etc. Wireless Internet via GPRS / EDGE / Wi-Fi / 3G / HSDPA … etc. Device independent PC / Notebook / Tablet PC / PDA / 2G/3G Mobile phones / UMPC…
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Using NTRIP Hardware – Connect to Internet Any PC / PDA / Mobile devices connected to Internet Software – NTRIP Client Demo: “GNSS Internet Radio for Windows” Others: “GNSS Internet Radio for PPC”, “ArcNtrip”, “mobile-ntrip” … etc GPS Receivers DGPS: e.g. Garmin e-Trex Summit receivers … RTK: e.g. Leica GPS System 500 …
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Using NTRIP NTRIP-ready GPS Instrument e.g. Leica GPS System 1200 + GSM/GPRS connection
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NTRIP Client Demo Demo: Get RTK Corrections from a GPS Reference Station in Frankfurt, Germany Procedures: 1. Connect the PC to Internet 2. Download a NTRIP Client software e.g. GNSS Internet Radio by BKG (Freeware) 3. Install and Run the program
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NTRIP Client Demo 4. Enter NTRIPCaster Information Host Name, Port Number (usually 80 / 2101) Username, Password 5. Get and Select Stream from SourceTable Browse the Sources available Worldwide Download the stream 6. Decode the Received Data using RTCM decoder
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DEMO START
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