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RTK GPS on a Smartphone and Mobile
Table Platforms
Stacey Lyle, Associate ProfessorTexas A&M University Corpus Christi
TexasConrad Blucher Institute for Surveying
And Science
Texas A&M UniversityCorpus Christi
The Island University
Office of Research and Graduate Studies
N
DdDD
Conrad Blucher Institute for Surveying and Science
Texas A&M UniversityCorpus Christi
The Island University
Operations
Collecting real-time and long term ocean coastal observationsManaging coastal observing systems for navigation and transportation
Texas A&M UniversityCorpus Christi
The Island University
Office of Research and Graduate Studies
NPhysical Oceanographic Real-Time System (PORTS®)
• Houston/Galveston• Sabine-Neches• Gulfport• Pascagoula• Mobile Bay• Lake Charles
DdDD
Conrad Blucher Institute for Surveying and Science
Texas A&M UniversityCorpus Christi
The Island University
Texas A&M UniversityCorpus Christi
The Island University
Office of Research and Graduate Studies
• NASA– Columbia Recovery (Lyle
and Smith, 2003)– Geospatial Authentication
(NASA, 2009)– Aerial Vediography Direct
Georeference Rocket Payloads (NASA, 2009)
• NOAA/NGS– Spacebased RTK (Lyle and
Mulcare, 2005) – Airborne Gravity (Prouty
and Lyle, et al., 2007)– GPS Quality (Lyle and
Wood, 2002)
6/19/2012 DRAFT 4
NResearch
Texas A&M UniversityCorpus Christi
The Island University
Office of Research and Graduate Studies
NNPS and TxGLO UAS
DdDD
Conrad Blucher Institute for Surveying and Science
Texas A&M UniversityCorpus Christi
The Island University
• RS 16• 16’ wing spread• 13,000’ ceiling • 16 hour flight time• 25 pound load
• Photogrammetry Payload• Direct GeoReferencing
Texas A&M UniversityCorpus Christi
The Island University
Office of Research and Graduate Studies
6/19/2012 DRAFT 6
RTN GPS:VRS or RTCM Server
2G/3G/4G
Local Wi-Fi Network
Real Time Map
NSmartphone RTK
Texas A&M UniversityCorpus Christi
The Island University
Office of Research and Graduate Studies
NUSDA: Low Cost Machine Control
DdDD
Conrad Blucher Institute for Surveying and Science
Texas A&M UniversityCorpus Christi
The Island University
• Low Cost RTK GPS• Space-based RTK • CORS Connection
Texas A&M UniversityCorpus Christi
The Island University
Office of Research and Graduate Studies
N
6/19/2012 DRAFT 8
-0.04
-0.03
-0.02
-0.01
0
0.01
0.02
0.03
-0.03 -0.02 -0.01 0 0.01 0.02 0.03
L1 RTK Horizontal
Texas A&M UniversityCorpus Christi
The Island University
Office of Research and Graduate Studies
N
6/19/2012 DRAFT 9
-0.08
-0.06
-0.04
-0.02
0
0.02
0.04
0.06
0.08
0.1
0 500 1000 1500 2000 2500 3000 3500 4000
L1 RTK Vertical
Texas A&M UniversityCorpus Christi
The Island University
Office of Research and Graduate Studies
• QWERTY keyboard• Kick-out keyboards• Touch screen• Smaller data collectors
in existence• User adaptations
NConsiderations
Texas A&M UniversityCorpus Christi
The Island University
Office of Research and Graduate Studies
• iPhone 4:– 3G – 6 hours– Wi-Fi – 10 hours– Standby – 300 hours– Bluetooth – worse
• Android and Windows –similar
NPhone Considerations
Texas A&M UniversityCorpus Christi
The Island University
Office of Research and Graduate Studies
1. App starts- Settings2. Post Processing vs. RTK3. Start Job4. Smart phone gets corrections5. Surveying started with selected
accuracy6. GNSS configured to output7. Real Time Mapping and/or
Control8. App closed
NApplication Steps
Texas A&M UniversityCorpus Christi
The Island University
Office of Research and Graduate Studies Product
• Open Source• Work in progress• Will be found in:
– Markets– Websites– Software application management software
NAvailability
Texas A&M UniversityCorpus Christi
The Island University
Office of Research and Graduate Studies
N
Conrad Blucher Institute for Surveying and Science6300 Ocean Drive Corpus Christi, Texas [email protected]
Thank You
