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What is IOTA-VTI

The IOTA-VTI, presented by Tony Barry and Dave Gault, is a USB-powered astronomical device with GPS, data assurance system, and almanac management. It timestamp videos accurately for research and refinement in the field.

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What is IOTA-VTI

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  1. What isIOTA-VTI by Tony Barry and Dave Gault presented at (1) The 5th Trans-Tasman Symposium on Occultations 26th -27th May 2011 (2) The IOTA AGM 23rd-25th July 2011

  2. Tony and Daveinitial conspirators on project IOTA-VTI TTSO5 notes…We regret we can’t attend this 5th Trans-Tasman Symposium on Occultations and present IOTA-VTI to the occultation community and would hitherto wish to thank Dave Herald and Stephen Russell for stepping up to present the device on our behalf, and I’m sure both gentlemen will do a splendid job and aid in the continuing refinement of IOTA-VTI. IOTA AGM notes…We regret we can’t attend this IOTA Annual General Meeting and present IOTA-VTI to the occultation community and would hitherto wish to thank Sandy Bumgarner and Walter Morgan for turning the project into a saleable item. Tony and Dave

  3. IOTA-VTIKey Features • Powered by USB or 12vDC (centre positive) • CCIR (PAL) or EIA (NTSC) compatible • Will work without a camera connected • LED to confirm that a camera is connected. • Internal sensitive GPS • Characters have a drop-shadow – viewable against say, the lunar bright limb • Comprehensive Data Quality Assurance system • GPS Almanac Management System • Licensed to IOTA to prevent untimely withdrawl • Price us$249 + shipping ect… • Can be ordered now!

  4. Block Diagram

  5. Prototype #1 to Demo #1 to Productionin less than 8 months Author and Contributors Tony Barry, Dave Gault, Walter Morgan Sandy Bumgarner, Stephen Russell, Dave Herald and David Dunham

  6. QA Tests – Comparison with Existing Devices • Test equipment; • KIWI-PC and Trimble SV6 GPS • KIWI-OSD and Garmin 18x LVC GPS • IOTA-VTI and USglobalSAT EM406A GPS • Result; IOTA-VTI can timestamp video fields • and frames consistent with the other two • devices • More Independent tests regimes underway

  7. Position Screen

  8. Time ScreenFull screen mode – NTSC 8 Satellite fix

  9. Full Screen and TVsafe Modes Full Screen mode on a digital monitor

  10. GPS Almanac Management System (GPS-AMS)

  11. IOTA-VTI Data Quality Assurance (DQA)“Live” On Timer Screen • IOTA-VTI samples the serial data and the 1pps from the GPS every second • 5 tests every second + 1 test sequentially over an hour • Overall policy is to ‘squawk’ loudly on error • Reports on status of satellite fix

  12. Questions…?

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