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The “Crib”….

The “Crib”…. Christa Wheeler Sirin Yaemsiri Vidya Goli. What are we designing?. Orientation game for visually impaired babies and toddlers Sound orientation game helps to encourage movement and exploration. Where did the idea come from?. Goldberg’s students designed sound mat

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The “Crib”….

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  1. The “Crib”…. Christa Wheeler Sirin Yaemsiri Vidya Goli

  2. What are we designing? • Orientation game for visually impaired babies and toddlers • Sound orientation game helps to encourage movement and exploration

  3. Where did the idea come from? • Goldberg’s students designed sound mat • Sound cubes that only sighted children could use • How can we modify toys to benefit blind children?

  4. The Primary Playpen Game • One corner plays a sound • The child must move towards the sound and press a large button signifying that they have reached the corner • Once that button is pressed, another corner, selected at random, begins to play music

  5. What does this toy do? • Encourage a VI child to crawl and move around • Help the child begin to orient themselves using sound • Provide a fun and safe way for the child to play and exercise without excessive parental supervision

  6. Circuit Schematic Part 1 OR Gate Logic aba+b 0 0 0 0 1 1 1 0 1 1 1 1 Corner Buttons MOD-16 Counter OR Gates D Flip Flops NAND Gate ___ AB RESET A 20 21 B 22 a + b a 23 NAND Gate Logic __ ABAB 0 0 1 0 1 1 1 0 1 1 1 0 b

  7. Circuit Schematic Part 2 2 AA Batteries (6V) Selector Lines DEMUX 20 Inverter 21 From D Flip- Flops Demultiplexer (DEMUX)- sends 5 V out on unselected lines Optical Isolators TO MUSIC CIRCUITS

  8. Prototype II • New design for music player • Switches that are easier to use and have less bouncing • Hide circuitry under mat • Moveable speakers and switches • Retractable cords (?) • Infrared (?)

  9. The Future… • Internship - Summer Undergraduate Research Fellowship http://www.unc.edu/depts/our/summer_research.html • Governor Morehead Preschool • National Science Foundation Senior Design Projects Publicationhttp://nsf-pad.bme.uconn.edu/ • RESNA (Rehab Engineering and Assistive Technology Society of N. America) - Conferences in 2003 and 2004 - Competition - http://www.resna.org/

  10. Acknowledgements • Richard Goldberg • Sean Washburn • Hugon Karwowski

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