Transcript SLOVENIAN GPS NETWORK : LOVEN A-

SLOVENIAN GPS NETWORK
SIGNAL:
SLOVENIA-GEODESY-NAVIGATIONLOCATION
Dalibor RADOVAN
Geodetic Institute of Slovenia
Ljubljana
? Geodetski Inštitut Slovenije
SIGNAL
National GPS network under construction
Part of geospatial infrastructure
Main user: Geodesy
Main task: Transition to a new coordinate system
Open to other users: Navigation, facilities
management, GIS
www.geod-is.si
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NATIONAL COORDINATE SYSTEM
Bessel ellipsoid
Gauss-Krueger projection
Locally deformed classic triangulation – Datum 1948
Transformation parameters to/from ETRS 89 available
for the entire country and locally
www.geod-is.si
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NEW COORDINATE SYSTEM
National GPS network SIGNAL
+
Homogenized network of points in ETRS 89
(EUREF campaigns & additional points)
+
Classic traingulation in transition time
www.geod-is.si
? Geodetski Inštitut Slovenije
REMINDER
Slovenia:
20.000 km2
2.000.000 inhabitants
www.geod-is.si
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ORGANIZATION
Surveying and Mapping Authority (SMA) - funds and
organization
Geodetic Institute of Slovenia - technical
coordination and management (from 2001 on)
46 SMA branch offices & 150 accredited private
companies - execution of geodetic works on local
level
Faculty for Civil Engineering & Geodesy - research
and consultancy
www.geod-is.si
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CURRENT STATUS OF GPS NETWORK
Activities (re)started as late as 2001
4 permanent stations + 1 private in networked
operation
1 of them included in EUREF-EPN
Trimble VRS/FKP in operation from the end of 2003
GPS service in operation at the Geodetic Institute of
Slovenia
50 users
Permanent education system
www.geod-is.si
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PLANS
Currently 4 stations in bidding process
Outside SIGNAL: 8 private stations existing (single)
15 stations planned
Full network until mid 2006 within public-private
partnership (SMA + Chamber of private surveying
companies)
www.geod-is.si
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SIGNAL NETWORK
www.geod-is.si
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THE OBJECTIVE
•
•
•
•
Geodetic accuracy (cm rank) over the whole national
territory with 15 stations
Average distance 50 to 70 km
Currently: sub-decimeter accuracy with 5 networked
stations
Average distance 70 to 130 km
www.geod-is.si
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2.11
DATA DISTRIBUTION
POST PROCESSING
• Via web server (SMA's home page)
REAL TIME
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SMA's HOME PAGE: GPS SERVICE & DATA
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REAL TIME
Via GSM with GSM modems in the centre
www.geod-is.si
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REAL TIME
Via mobile internet – NTRIP (Networked Transport of
RTCM via Internet Protokol)
www.geod-is.si
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REAL TIME
Via GSM provider
www.geod-is.si
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PERMANENT STATION LJUBLJANA
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SLOVENIA IN EPN
* GSR 1
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PERMANENT STATION BOVEC
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COLLOCATED TIDE GAUGE AND GPS STATION
SMA + Agency for environment (meteorology) + ESEAS
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APOS + SIGNAL
Exchange of data
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GPS SERVICE - CONTACTS
Home page:
Coordination:
Technical:
www.geod-is.si
www.gu-signal.si
[email protected]
[email protected]
? Geodetski Inštitut Slovenije