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AMCOM Digital Archive

AMCOM Digital Archive. Design Review - Week 5. Engineering Challenge. Propulsion and Structures Directorate Improve test data collection Improve test data storage and organization Project Contact Information George Arkoosh – Main Contact Dr. Jay Lilley – Program Director

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AMCOM Digital Archive

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  1. AMCOM Digital Archive Design Review - Week 5

  2. Engineering Challenge • Propulsion and Structures Directorate • Improve test data collection • Improve test data storage and organization • Project Contact Information • George Arkoosh – Main Contact • Dr. Jay Lilley – Program Director • Leah Irrang – Graphic Systems Designer

  3. External/Context Diagram

  4. Current System – Data Collection • Data Collection Systems • High Speed Camera • Various data sensors (pressure, thrust, etc) that produce ASCII files of numeric data • Four DV cameras that output standard NTSC signals that is collected on four DV decks • The DV data is then ripped from the four individual DV tapes with Adobe Premier

  5. Testing Facility Testing Facility Testing Facility Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Camcorder Current Data Collection Control Room Computer Various Data Sensors DV Deck AVI File Video Switch DV Deck AVI File DV Deck AVI File Component Video 4 Streams (1/Camera) DV Deck AVI File

  6. Current System – Data Storage • Data Storage System • No organized system • DV tapes are stored various places • Data files (Video and ASCII) are stored on various computers but in no organized manner

  7. Current System - Data Storage • Current System Data Video Black Hole

  8. Improvement to Data Collection

  9. Testing Facility Testing Facility Testing Facility Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Camcorder Video Architecture - Proposed DV Decks Backup Component Video 4 Streams (1/Camera) Computer w/ 4 Stream Capture Card Video Switch AVI File All video feeds will be captured and simultaneously encoded into an AVI file. Multiple Testing facilities

  10. NTSC • National Television System Committee • Devised in 1953 • The “basic television signal” • Used primarily in the United States and Canada • Pros • At 30 (29.97) frames/second flicker is minimized • Less inherent picture noise • Almost all video equipment achieves better SNR that compared to PAL • Cons • Lower number of scan lines resulting in reduced clarity • Susceptibility to Hue Fluctuation • Lower Gamma Ratio results in pictures with less contrast

  11. NTSC technical

  12. MPEG • MPEG (Moving Picture Experts Group) • MPEG1. Used in digital cameras and camcorders to capture small, easily transferable motion video clips, and is also the compression format for creating video CDs. • MPEG2. Commercially produced DVD movies, home-recorded DVD discs, and digital satellite TV broadcasts all employ MPEG2 video compression to deliver their high-quality picture. MPEG2 can rival, or even slightly outperform, the DV format when it comes to picture. The MPEG2 codec allows for selectable amounts of compression to be applied, this allows a range of recording "speeds." • MPEG4. This newer, very flexible MPEG codec is used for both streaming and downloadable Web content, and is also the video format employed by a growing number of portable video recorders.

  13. More Video Formats • DV (Digital Video) • DV is the format used by most digital camcorders for capturing crisp, colorful movies and CD-quality sound, usually on Mini DV cassettes • AVI (Audio/Video Interleaved) • AVI is a "container format," meaning that it specifies how the data will be organized, but it is not itself a form of audio or video compression • Motion JPEG (Joint Photographic Experts Group) • With Motion JPEG, each frame of video is captured separately and reduced in size using JPEG compression

  14. Proposed Solutions – Video Cards

  15. Improvement to Data Storage

  16. Functional Hierarchy To record propulsion tests To manage test media To capture A/V data To capture sensor data To control & process data To encode video & sound To record video & sound To archive data To store & retrieve data

  17. Physical Hierarchy Missile Test Data System V.E.N.O.M. System Analog Cameras Sensors Software Package Encoding Station DV Tape Decks Data Backup System Data Storage System

  18. Other Project News • Received MS SQL Server and Windows 2003 Server • Test data structure is still being formulated • Acquired hardware for solution development

  19. Discussion / Questions

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