vrs & you chuck hutchins vectors, inc.. technology
TRANSCRIPT
VRS & You
Chuck HutchinsVectors, Inc.
Technology
Technology
Technology
Miniaturization of Components!
User Components of VRS
User Components of VRS
Efficiency!!!
Where are my corrections coming from???
Network Components of VRS
CORS Stations&
Reference Stations
Network Components of VRS
Monumentation
Network Components of VRS
Monumentation Hardware
Network Components of VRS
Communications
Network Components of VRS
Communications Software
How does all of this work???
Infrastructure
The future of the Survey, Mapping and Construction industries.
Infrastructure
Server: Central Data Management
Data Flow
Reference Station data streams back to server through LAN or Internet
Data Flow
Roving receiver sends a NMEA string back to server using cellular modem - VRS position is established
NMEA - GGA
VRS
Data Flow
Server uses VRS position to create corrected observables and broadcasts to rover
RTCM or CMR+VRS
Data Flow
Rover surveys as in normal RTK survey but getting data as if coming from the VRS
VRS
VRS - How does it work?
Network Processes• Integrity monitoring• Geometric correction• Correction for tropospheric errors• Correction for ionospheric errors• Ambiguity resolution• Consistency check• Delivery of VRS corrections to your
mobile location.
Network Multiple Base Station Solution
B1 B2
B3
R
Let B1, B2 B3 be base stations, R be the rover
Four RTK engines run simultaneously:1. (1,2) 2. (2,3)3. (3,1)4. (1,R)+(2,R)+(3,R)
What’s the advantage???
Advantages of VRS
Eliminates dependency on single reference station or base station.
Uses established communications.
Establishes a single coordinate system.
VRS & You
Questions???