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X-Ray Window: Portable Visualization on the International Space Station

X-Ray Window: Portable Visualization on the International Space Station. William W. White Southern Illinois University Edwardsville, IL 62026-1656 wwhite@siue.edu. ISS Stowage Problems. Locating stowed items Dynamic crew rosters Inconvenient bar-code readers Shortage of space

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X-Ray Window: Portable Visualization on the International Space Station

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  1. X-Ray Window: Portable Visualization on the International Space Station William W. WhiteSouthern Illinois UniversityEdwardsville, IL 62026-1656wwhite@siue.edu

  2. ISS Stowage Problems Locating stowed items • Dynamic crew rosters • Inconvenient bar-code readers Shortage of space • Delays in module implementation

  3. Additional ISS Problems Data retrieval • Remote gauges in various modules • Incompatible international database systems • EVA/docking status

  4. “Magic Window” ISS imagery system • Flat panel/VR headwear • Designed to relieve tedium of long-term confinement • Potential applications: • Exercise bike/treadmill display • Teleconferencing • First aid treatment database

  5. X-Ray Window Enhancement Proposed operation: • ISS team member aims display device • Device determines position/orientation • Calculates ISS objects in line of sight • Provides coherent display

  6. X-Ray Window Challenges Localization • Potential interference with normal ISS operation Dynamic data • Determining objects in designated direction and depth Interactive display • Focusing on relevant objects

  7. Localization Alternatives Acoustic Tracking • Ultrasonic; easy reflection filtering • Affected by environment; requires line-of-sight (LOS) Mechanical Tracking • Direct physical determination • Space-consuming

  8. Localization Alternatives Optical Tracking • Infrared; non-interference w/ISS • Extensive signals & direct LOS required Magnetic Tracking • Simple; LOS not needed • Conductive interference

  9. ISS-Compatible Localization Inertial Tracking • Gyroscopes & accelerometers; recent chip-level advances • Low gravity problems? Radio Tracking • Ultra-wideband transmission • Minimal communication interference? Continuous Waves Coherent UWB Pulses

  10. Data Retrieval Current static database systems • Inventory Management System • Stowage database management tool • Internal Volume Configuration • CAD-based database for stowage compartments

  11. Dynamic Data Retrieval UWB systems may be used for “interior radar” • Mine detection – negligible signal interference • Medical monitoring – minimal human side effects • Cargo container tracking – analogous to ISS stowage

  12. X-Ray Window Interface Requirements include: • Depth selection control • Occlusion handling • Target specification • Object highlighting

  13. Acknowledgements NASA Johnson Space Center • Mihriban Whitmore • Vicky Byrne • James Maida NASA Faculty Fellowship Program • http://asee.org/resources/fellowships/nffp

  14. Image Credits spaceflight.nasa.gov/gallery Shfe.jsc.nasa.gov/docs/Hab2004/Connolly_stowade.pdf Eric Foxlin, Michael Harrington, & George Pfeifer; “Constellation: A Wide-Range Wireless Motion-Tracking System for Augmented Reality and Virtual Set Applications;” Proceedings of SIGGRAPH 98; July 1998; pages 371-378. Greg Welch & Eric Foxlin; “Motion Tracking: No Silver Bullet, but a Respectable Arsenal;” IEEE Computer Graphics and Applications; November/December 2002; pages 24-38. Eugene Paperno, Ichiro Sasada, & Eduard Leonovich; “A New Method for Magnetic Position and Orientation Tracking;” IEEE Transactions on Magnetics; July 2001; pages 1938-1940. www.fakespacelabs.com

  15. Image Credits NASA Generic On-Orbit Stowage Capabilities and Requirements: Pressurized Volume (Revision C); January 2003; http://jsc-sls-sisl6.jsc.nasa.gov/csig/atation/OSCAR_RevC.pdf www.tomheroes.com http://www.analog.com http://www.time-domain.com Xiaojian Xu & Ram N. Narayanan; “Range Sidelobe Suppression Technique for Coherent Ultra Wide-Band Random Noise Radar Imaging;” IEEE Transactions on Antennas and Propagation; December 2001; pages 1836-1842. Robert J. Fontana & Steven J. Gunderson; “Ultra-Wideband Precision Asset Location System;” Proceedings of the 2002 IEEE Conference on Ultra-Wideband Systems and Technologies; May 2002; pages 147-150. Enrico M. Staderini; “UWB Radars in Medicine;” IEEE Aerospace and Electronic Systems Magazine; January 2000; pages 13-18. NASA Inventory Management System Software Users Guide (Revision 4); http://mod.jsc.nasa.gov/do5/iso/

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