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

Sound cubes that only sighted children could use

How can we modify toys to benefit blind children?

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

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

Circuit Schematic Part 1

___ ABA

B

MOD-16 Counter

NANDGate

Corner Buttons

OR Gates

__A B AB0 0 10 1 11 0 11 1 0

a b a+b0 0 00 1 11 0 11 1 1

OR Gate Logic

NAND Gate Logica

b

a + b

20

21

22

23

D Flip Flops

RESET

Circuit Schematic Part 2

FromDFlip-Flops

DEMUX

Inverter

Demultiplexer (DEMUX)- sends 5 V out onunselected lines

2 AA Batteries (6V)

TO MUSIC CIRCUITS

OpticalIsolators

SelectorLines

20

21

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 (?)

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

Publication http://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/

Acknowledgements

Richard Goldberg Sean Washburn Hugon Karwowski