1. Low-Vision Audio Planner
Mid Semester Presentation
Senior Design I
March 5th, 2015

2. TEAM MEMBERS Nandita Gupta Electrical Engineering Team Lead
Donna Jaison
Electrical Engineering
Hunter Groeneveld
Electrical Engineering
Sean Densford
Electrical Engineering
Cory Hofsass
Electrical Engineering

3. WHAT DO YOU SEE?

4. FACULTY ADVISER DR. BRYAN JONES
Academic/Research and Fields of Interest:
Robotics
Real-time control system implementation
Rapid prototyping for real-time systems
Modeling and analysis of mechatronic systems
Office(s): Simrall Engineering Building Room: 231 Phone:

5. Research and Training Associate
The National Research & Training Center on Blindness & Low Vision (NRTC)
The NRTC is the only U.S. Department of Education-funded center focused on employment outcomes of persons with blindness or low vision.
We plan to utilize data and information from NRTC to support the Low-Vision Audio Planner.
Kendra Farrow
Research and Training Associate

6. PROJECT OUTLINE Problem Solution System Overview Constraints Technical
Practical
Progress
Timeline
Questions/Comments
Chris

7. PROBLEM
Visually impaired people have problems with organization: grocery lists, to-do lists, daily planner, calendar, etc.
Smart phones can be complicated and expensive.
Current audio recorders and planners are not completely effective.

8. Market solutions The Mini Wilson Olympus VN-722PC
20 Second Recording Memo
Offers two 10 second channels for lists, appointments, and contacts
$10.95
The Mini Wilson
Olympus VN-722PC
LCD screen with different levels of functionality (font size)
$69.95
Stores multiple messages with up to an hour of recording time
$24.95

9. DESIGN SOLUTION Large buttons with distinct textures.
The t-shaped design allows the top and bottom to be easily referenced.

10. ORGANIZATION SOLUTION
Insert/Delete Functions
Multidimensional Folders
Circular List

11. SYSTEM OVERVIEW

12. TECHNICAL CONTRAINTS Bit Resolution 12 bits Sampling Frequency 16 kHz
CONSTRAINT
DETAILS
Bit Resolution
12 bits
Sampling Frequency
16 kHz
Memory
External
Response Time
100 ms

13. BIT RESOLUTION
From
National Instruments

14. PRACTICAL CONSTRAINTS
TYPE
DETAILS
Economic
Price : $80
Sustainability
Operation : 7 hours
Manufacturability
Size : 140mm * 75mm * 20mm
Weight : 200g
Legality
Volume Control
Health and Safety
Must not lead to accidents

15. PROGRESS Microcontroller System overview ADC DAC Amplification
Play through
Filtering
Memory

16. Design Overview and Constraints
TIMELINE
Identify system requirements
Identify system constraints
Design Overview and Constraints
Divide project into different areas
Hardware team, software team, power management.
Implement solution
Combine and integrate different parts
Testing
JANUARY FEBRUARY –TO MID-MARCH MARCH - APRIL

17. QUESTIONS/ COMMENTS?