1 / 16

OZ Human-Centered Flight Displays

OZ Human-Centered Flight Displays. Dave Still & Tom Eskridge IHMC Background and Application. What is OZ?. A unique, human-centered flight instrument Uses biological principles to constrain graphical symbology to pass through ambient vision filters Enables gestalt view of instrument

teagan-rich
Télécharger la présentation

OZ Human-Centered Flight Displays

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. OZ Human-Centered Flight Displays Dave Still & Tom Eskridge IHMC Background and Application

  2. What is OZ? • A unique, human-centered flight instrument • Uses biological principles to constrain graphical symbology to pass through ambient vision filters • Enables gestalt view of instrument • Enables acquisition of multiple data points for each gaze • Takes advantage of visual perception features • Popout • Figure-ground separation • Chunking • Effortless discrimination • Structure from motion • Uses human-centered computing principles to provide functional relevance • Combine multiple data streams • Uses common frame of reference

  3. Motivations for the OZ design • Keep up with the aircraft • Decrease spatial disorientation / inner ear • Decrease pilot workload, improve stress tolerance • No memorization V speeds, power settings • Decrease training • Add Capability and Performance • Consolidated frame of reference • Agile adaptation to change/emergency Our hypothesis is that reducing the cognitive workload associated with understanding the flight attitude and environmental situation of the aircraft will enable pilots to fly and land more precisely, and have the reserve cognitive bandwidth available to make safety- and mission-critical decisions.

  4. Versions of OZ • Fixed-wing OZ • Rotary-wing/VTOL OZ • Design principles behind OZ have been used to create interfaces for • Anesthesiologists • Network Security Analysts • Air Operations Center Commanders

  5. Fixed-wing OZ

  6. Starfield Metaphor Vertical Columns show headings Horizontal Rows show altitudes

  7. Aircraft Performance Total Drag Parasitic Drag Induced Drag

  8. OZ for Helicopter/VTOL • Flight model changes • Starfield remains • Dynamics reflect VTOL flight

  9. Barriers to VTOL Flight • Understanding what the aircraft is doing • Poor visual feedback • Out the window • Reduced visual environment • Ambiguous cues • Training Display • Pulsing the controls • Prevents control feedback • Quick small pressure • Control input reversals • Positive control

  10. Why OZ works • There are three external inputs to pilot • Vision • Vestibular System • Instrument Symbology • Vision during vertical flight is ambiguous • Relative motion moving towards A/C indicates: • Vertical Motion • Forward Motion • Pitch Up • G-load on vestibular system is small • Symbology provides most accurate information

  11. Why OZ works • Internal inputs to pilot are • Perception • Mental model of flight • Experience • OZ uses ambient vision to enhance perception over wide angle field of view • OZ directly encodes a normative model of flight, relating • A/C performance • A/C capabilities • Environment • Studies have shown training with OZ leads to increased capabilities earlier in flight career

  12. Why OZ works • Separates ambiguous visual inputs into separate force components • Pitch • Roll • Yaw • Fore/Aft • Up/Down • Left/Right

  13. Unambiguous Cues YAW ROLL PITCH LEFT/RIGHT UP/ DOWN FORE/ AFT

  14. Ascending Green Beyond Yellow Tick Torque greater than required for IGE Hover Vertical Speed Ring 5 degrees above Horizon 250 fpm Horizon above Ground Dots by 35 feet

  15. Forward Motion Pitch Line Pitch Ladder 5 degrees Feathers Feathers Horizon Line

  16. Drifting to right Lateral Displacement Lateral Speed

More Related