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Lyle tamucc 2
Lyle tamucc 2
Lyle tamucc 2
Lyle tamucc 2
Lyle tamucc 2
Lyle tamucc 2
Lyle tamucc 2
Lyle tamucc 2
Lyle tamucc 2
Lyle tamucc 2
Lyle tamucc 2
Lyle tamucc 2
Lyle tamucc 2
Lyle tamucc 2
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Lyle tamucc 2

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  • The downside to this is that in today’s world Land Surveyors are accustomed to harsh environments, however, the mobile phones and tablets are not. The mobile phone has many options that we can evaluate though. There is a Full QWERTY keyboard for quick data entry, but they are often small and difficult to use. Then there are the kick-out style keyboards that offer larger buttons, but they are still considered too tedious. We have then brought out the touch screen keyboards which are popular; however, they lack tactile feedback. The current touch screen data collectors have only 320x320 pixels, while the newer smart phones have the 960x640 pixels screens. Small displays and limited interaction capabilities make it difficult to design and frustrating to use. Users are now more adapted to the newest screens and keyboard interfaces so the frustrations have lessened.
  • We then have to take into consideration the batter power of the smart phone. The iPhone 4 can sustain a 3G internet connect of up to 6 hours, a Wi-Fi of up to 10 hours, and a standby moment up to 300 hours. The Bluetooth drains the battery even faster. The Android and Windows phones have similar battery power configuration. The phones can be operated while being charge, but that takes away from the USB connection method for the GNSS receiver.
  • The steps to the application will be as follows. Step 1: The application starts. Step 2: The user will choose either Post Processing or Real Time. Step 3: After selecting Real time the user will start a Job with the Real Time configuration file for the GNSS. The options that are settings are used. Step 4: While the GNSS is started the Smart Phone logs on to the Real Time provider to obtain a VRS or RTCM correction using the available location to the NTRIP type server. Step 5: Surveying can be started with the current or minimum accuracy that can be configured in settings. Step 6: The GNSS will be configured to output a NEMA string on TCPIP or other communication as selected in the settings. Step 7: The Real Time mapping data is pushed or pulled as selected in the settings. None is also an option. Step 8: When the application is closed the files are closed.
  • A software factory configuration is being established to continue the product development. The product will be provided in markets, websites, and software application management software such as iTunes or Amazon.
  • Transcript

    • 1. RTK GPS on aSmartphone and Mobile Table Platforms Stacey Lyle, Associate ProfessorTexas A&M University Corpus Christi TexasConrad Blucher Institute for Surveying And Science
    • 2. DdD Office ofBlucher Institute Conrad Research and Texas A&M University Texas A&M University Corpus Christi Corpus ChristiD Graduate Studies for Surveying and The Island University The Island University ScienceOperations NCollecting real-time and long term ocean coastalobservationsManaging coastal observing systems for navigationand transportation
    • 3. DdD Office ofBlucher Institute Conrad Research and Texas A&M University Texas A&M University Corpus Christi Corpus ChristiD Graduate Studies for Surveying and The Island University The Island University SciencePhysical Oceanographic Real-Time System N(PORTS®) • Houston/Galveston • Sabine-Neches • Gulfport • Pascagoula • Mobile Bay • Lake Charles
    • 4. Office of Research and Texas A&M University Corpus Christi Graduate Studies The Island UniversityResearch N • 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) 6/29/2012 DRAFT 4
    • 5. DdD Office ofBlucher Institute Conrad Research and Texas A&M University Texas A&M University Corpus Christi Corpus ChristiD Graduate Studies for Surveying and The Island University The Island University ScienceNPS and TxGLO UAS N • RS 16 • 16’ wing spread • 13,000’ ceiling • 16 hour flight time • 25 pound load • Photogrammetry Payload • Direct GeoReferencing
    • 6. Office of Research and Texas A&M University Corpus Christi Graduate Studies The Island UniversitySmartphone RTK N RTN GPS: VRS or RTCM Server Local Wi-Fi Network Real Time Map 2G/3G/4G 6/29/2012 DRAFT 6
    • 7. DdD Office ofBlucher Institute Conrad Research and Texas A&M University Texas A&M University Corpus Christi Corpus ChristiD Graduate Studies for Surveying and The Island University The Island University ScienceUSDA: Low Cost Machine NControl • Low Cost RTK GPS • Space-based RTK • CORS Connection
    • 8. Office of Research and Texas A&M University Corpus Christi Graduate Studies The Island UniversityL1 RTK Horizontal N 0.03 0.02 0.01 0 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 -0.01 -0.02 -0.03 -0.04 6/29/2012 DRAFT 8
    • 9. Office of Research and Texas A&M University Corpus Christi Graduate Studies The Island UniversityL1 RTK Vertical N 0.1 0.08 0.06 0.04 0.02 0 0 500 1000 1500 2000 2500 3000 3500 4000 -0.02 -0.04 -0.06 -0.08 6/29/2012 DRAFT 9
    • 10. Office of Research and Texas A&M University Corpus Christi Graduate Studies The Island UniversityConsiderations N • QWERTY keyboard • Kick-out keyboards • Touch screen • Smaller data collectors in existence • User adaptations
    • 11. Office of Research and Texas A&M University Corpus Christi Graduate Studies The Island UniversityPhone NConsiderations • iPhone 4: – 3G – 6 hours – Wi-Fi – 10 hours – Standby – 300 hours – Bluetooth – worse • Android and Windows – similar
    • 12. Office of Research and Texas A&M University Corpus Christi Graduate Studies The Island UniversityApplication Steps N 1. App starts- Settings 2. Post Processing vs. RTK 3. Start Job 4. Smart phone gets corrections 5. Surveying started with selected accuracy 6. GNSS configured to output 7. Real Time Mapping and/or Control 8. App closed
    • 13. Office of Research and Texas A&M University Graduate Studies Product Corpus Christi The Island UniversityAvailability N • Open Source • Work in progress • Will be found in: – Markets – Websites – Software application management software
    • 14. Office of Research and Texas A&M University Corpus Christi Graduate Studies The Island UniversityThank YouNConrad Blucher Institute forSurveying and Science6300 Ocean DriveCorpus Christi, Texas 78412Stacey.lyle@tamucc.edu361-548-8852

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