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Intern Exit Presentation May 06, 2009

Intern Exit Presentation May 06, 2009. Victoria Kaiser Mentor: Robert Hirsh JSC Spacecraft Software Engineering Branch/ER6. Agenda. Biography Projects Attitude and Heading Indicator Joystick/TRICK/EDGE Interface High Resolution Lunar DEMs Acquired Skills Future Plans Questions.

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Intern Exit Presentation May 06, 2009

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  1. Intern Exit PresentationMay 06, 2009 Victoria KaiserMentor: Robert Hirsh JSC Spacecraft Software Engineering Branch/ER6

  2. Agenda Biography Projects Attitude and Heading Indicator Joystick/TRICK/EDGE Interface High Resolution Lunar DEMs Acquired Skills Future Plans Questions

  3. Hometown: Clarence Center, New York College: University at Buffalo, May 2008 Major: Electrical Engineering Minor: Mathematics Teaching Assistant Technician: Intelligent Microsystems Summer Research Assistantship (2006, 2007): Microcontroller Lab Summer 2008 Internship: Fisher Price HQ, East Aurora NY Graduate School: Rutgers University, December 2011 Major: Electrical Engineering Research Assistant, Teaching Assistant, Lab Assistant Spring 2009 Internship: NASA Johnson Space Center, Houston TX Biography

  4. Projects Developing an attitude and heading indicator instrument overlay for the Altair simulation. Creating an interface for human-input control with a joystick via the Trick variable server Generating high-resolution lunar Digital Elevation Map(DEMs) for the projected terrain under the final 1000m descent using DEMMaker.

  5. Attitude and Heading Indicator

  6. The overlays designed for the simulator were written in a language called Tcl/Tk and graphically implemented in EDGE - a software package that supports the DOUG real-time graphics rendering tool. • The various gauges and views can be turned on/off via the joystick buttons. (GUI Changes) • The joystick axis interrupts are taken into the Trick variable server and used as inputs to change the model (in this case setting roll, pitch and yaw). Attitude and Heading Indicator

  7. Human Input Interface

  8. Human Input Interface ALHAT FlowchartALHAT software system flowchart, including Human Systems Interface (HSI) controls, and the Hardware-in-the-loop ALHAT Systems Testbed (HAST) components and data flow.

  9. Human Input Interface Demonstration

  10. High Resolution Lunar DEMs 2D Lunar Terrain DEM Latitude -89.8, Longitude 0, Area 6.1KM x 6.1KM, Resolution 4.4 meters per pixel. 3D SRM generated from the 2D Lunar Terrain DEM on the left.

  11. DEMMaker: developed by APL at JHU • Hosts database of known larger craters, and positions • Randomly generates smaller craters, and rocks for realistic terrain • DEMs of increasing resolution, and decreasing area were generated over the terrain viewable during the final 1000 meter descent to the target lunar landing site. High Resolution Lunar DEMs

  12. Deorbit maneuver 100 km Transfer Orbit Phase (coast) Powered Descent Initiation (PDI) Powered Descent Phase ~1 hr Braking Phase (TRN) 1.5 – 3 min Efficiently reduce velocity from orbital speeds Pitch-up Maneuver Hazard Detection Short pitch-up and throttle-down maneuver Human Interaction Hazard Avoidance Approach Phase (HDA, HRN) View landing site while approaching at a low throttle and relatively constant attitude ~15 km Terminal Descent Phase ~30 m Vertical descent to surface Touchdown NOTE – Not to scale 300-600 km (8-10 min) Range of Lunar DEMs High Resolution Lunar DEMs Approx. 1200 m

  13. The required visible area could be limited to the area of the pre-existing fuel circles. • The fuel circles are the maximum distance limits viable for the craft to land in, conditional of the altitude and fuel reserves. High Resolution Lunar DEMs Fuel Circles

  14. High Resolution Lunar DEMs DEMs generated to cover 1000m descent to target lunar landing site Composite Size Representation The respective areas of generated DEMs Specific DEMs were determined based on the calculated maximum allowable area without crossing the south pole, given position and altitude.

  15. High Resolution Lunar DEMs Shaded Rendering 3D Rendering

  16. Specific Software • EDGE/DOUG • TRICK • DEMMaker • Tcl/Tk • C • Linux • UNIX • Software Design and Integration • Hardware/Software Integration Acquired Skills

  17. Thank You Questions

  18. Involvement Volunteering: Habitat for Humanity AIAA Lecture Series CAS (College Aerospace Scholars) Mentor Yuri’s Night Setup/Teardown Promoting NASA: MCC Education Web-tivity Co-op Coordinator ReelNASA Video Project DLN Videoconference to Clarence High School

  19. Involvement

  20. Future Plans

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