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SR io GRN

SR io GRN. Southern Rio Grande Reference Network. SR io GRN. Gilbert Chavez, PS City Surveyor Public Works – Land Management (505) 528-3118 gchavez@las-cruces.org. SR io GRN. Las Cruces has operated a GPS Continuous Operating Reference Station (CORS) for more than 10 years.

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SR io GRN

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  1. SRioGRN Southern Rio Grande Reference Network

  2. SRioGRN Gilbert Chavez, PS City Surveyor Public Works – Land Management (505) 528-3118 gchavez@las-cruces.org

  3. SRioGRN • Las Cruces has operated a GPS Continuous Operating Reference Station (CORS) for more than 10 years. • July 2006, the City of Las Cruces upgraded its CORS • Trimble NetRS with Zephyr Geodetic Mark II Antenna and GPSNet software

  4. SRioGRN • Speed of this technology is enhanced by linking a base to a rover by cellular communication in lieu of radio • Link by cellular increases range from 5 miles to 50 miles • Accuracy is enhanced by linking reference stations to a CORS and base

  5. Benefits of RTN • Network solutions improvements over longer baselines • If properly implemented will provide consistent, verifiable and rapid results • Solutions are non-proprietary and in industry-standards formatting • Common datum • Different databases will fit together • Sub-centimeter accuracies

  6. Benefit to the City • A service to public as is gas, sewer, water and solid waste services • Cost recovery through Memberships and Subscriptions • Network is not subsidized by tax/rate payers • Extend service area beyond city limits • Common datum

  7. Public and Private RTN • Simple data sharing • Not seen as in competition • Private networks are not typically for profit • Private networks are usually vendors and offer networks as a value-added amenity • Currently working with co-operative data sharing agreements with a private network and partnership participants.

  8. Access to RTN • Membership or Subscriptions • Authentication and Authorization to access FTP servers • Non-proprietary signal • Data files are available for all to download • No Warranties

  9. Practical Example LAN Address: 192.168.1.1 WAN Address: 24.120.216.1 LAN Address LAN Address: 192.168.1.10 GPSBase machine sends back data type being used on Port 9000 through the network and back to rover Cellphone is put into Internet mode with TSCe TSCe now has a Private IP address Request from TSCe is made to connect to 24.120.216.1 on Port 9000 Telco router passes request through the Internet to the office Gateway/Router Gateway/Router passes request using port forwarding to GPSBase machine Rover in the field with cellular modem and TSC2 WAN Address

  10. Future of SRioGRN • Very successful co-operative Washington State Reference Network • DOT Ohio, Michigan, Illinois, North Carolina • Private Texas, Arizona, Colorado, Florida …. • Use as a cluster in a statewide network

  11. Questions?

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