victorian update cgsic july 2006 peter ramm [email protected]
TRANSCRIPT
Outline
• Introduction• Current Status• Current Issues• Future
Introduction
Victoria
Area < 3% of Australia
Population 24.9 % of
Australia)
2004 CGSIC Report
• 21 Sep 2004 Long Beach• Issues
– Policy Framework– Location Based Services Project– Implications for Victoria
• Realisation of the datum• Reg 13
Current Status
Policy Framework
• Continues to be important– Provides the policy context for
positioning infrastructure– Within Policy, positioning is becoming
more important• Facilitates other activities• Exposes quality issue in other spatial DB• Coordination of infrastructure
LBS
• Planned to have about 0.5 m accuracy real time solution over Vic– Delivered Dec 2004
Implications For Vic
• For all practical purposes GPSnet is the realisation of the geodetic datum in Vic
• Now have Reg 13 Certificates on 18 Base Stations
Victorian GPS Base Station Network
Comparison
Sep 2004 Jul 2006
Number of Base Stations
19 24(5 more scheduled for installation in
next year)
RTK (single Base) 7 Radio only 19 All Internet7 Radio still
DGPS (Sub Metre) Planned Established and State Wide
Networked RTK (2 cm) None 8
Current Issues
Current Issues
• Networks solutions not quite there– Inter Station Distance too small– Poor understanding of how they work– Low sat numbers a problem at times
• Driving changes in spatial data– Increased spatial accuracy in mapping
• Coordination • Multiple software systems on the one network• Hardware Costs down, but operators still have high
costs• CRC SI• NCRIS
The Future
The Future
• State wide• Real time• 2-3 cm Horiz
Accuracy• 3-5 cm Vertical
Accuracy
Relevant papers (Vic Priorities)
• Denham et al Contemporary Position and Navigation Needs of Precision Agriculture and Victoria’s GPSnet CORS Network
• Gordini et al Testing and Evaluation of a GPS VCORS Network for Real Time Centimetric Positioning – The Victorian GPSnet
• Hale et al validating a Model For CORS Network Management
• Yousufi et al Temporal variations of the Victoria GPSnet Base Stations
• Zhang et al Sparse or Dense: Challenges of Australian Network RTK
• Timeframes a problem
Question?