Florida Permanent GPS Reference Network

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Florida Permanent GPS Reference Network R. Scott
Harris Florida Department of Transportation Tallah
assee, Florida
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The Anatomy of Our Network

• Station Details
• Planned ( 40)
• Installations prior to 8/04 (40)
• Current spacing at 45 mile radius
• Continuing densification to squeeze spacing down
  to 25 mile radius adding 30 stations.
• Recon (All)

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The Anatomy of Our Network

• Circuit Details
• TCP/IP
• 56/128/T1 Permanent Virtual Circuits on Frame
  Relay
• Near Real-Time (lt100ms)
• Secure
• Redundant

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The Anatomy of Our Network

• Network Operation Center
• Windows based real-time Control and Integrity
  Monitoring software for a large network of
  reference stations.
• Provides real-time statistics on GPS network
  performance and alarming for out of tolerance
  conditions.
• Allows archiving and distribution of data
• Hourly Zipped RINEX files

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The Anatomy of Our Network

• Control and Integrity Monitoring
• Real Time from Software
• Post Processed from Software
• NGS/FSL daily processing

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Primary Applications
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Airborne Kinematic Control
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Static GPS Campaigns
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• 1 second data
• 1 hour RINEX files
• 24/7
• www.myfloridagps.com
• RTK coming soon

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Additional Applications
Water Vapor Analysis
Structural Monitoring
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• Sunshine Skyway Bridge Tampa
• 5 receiver suite
• Other sensors being included
• Installed 6/03

• Dames Point Bridge Jacksonville
• 4 receiver suite
• Other sensors under consideration
• Installation 1/04

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Future Network Enhancements
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Future Network Enhancements Real Time Kinematic
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Real Time Kinematic
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Future Network Enhancements Multi Sensor
Monitoring System
Bridge loading measurements, permanent
deformation measurement, automatic observation of
the bearing pads. Advantage Flexible use of the
total station for measurements with maximum
precision in manual or automatic mode. Most
importantly, the optical systems provide an
independent check of the GPS measurements.
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• Concept-to-Reality
• All sites located.
• Installations complete at 100 of core locations.
• Control Center is fully operational.
• Additional installations in progress.
• RD of future enhancements to continue.
• Inclusion into NGS CORS network.