LOW-VISION AUDIO PLANNER

MID SEMESTER PRESENTATION

SENIOR DESIGN I

MARCH 5TH, 2015

TEAM MEMBERS

Donna JaisonElectrical Engineering

Sean DensfordElectrical Engineering

Cory HofsassElectrical Engineering

Hunter GroeneveldElectrical Engineering

Nandita GuptaElectrical EngineeringTeam Lead

WHAT DO YOU SEE?

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 BuildingRoom: 231Phone: 662-325-3149

THE NATIONAL RESEARCH & TRAINING CENTER ON BLINDNESS & LOW VISION (NRTC)

Kendra FarrowResearch and Training Associate

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.

PROJECT OUTLINE PROBLEM

SOLUTION

SYSTEM OVERVIEW

CONSTRAINTS

TECHNICAL

PRACTICAL

PROGRESS

TIMELINE

QUESTIONS/COMMENTS

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.

MARKET SOLUTIONS

20 Second Recording

MemoOffers 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

DESIGN SOLUTION

LARGE BUTTONS WITH DISTINCT TEXTURES.

THE T-SHAPED DESIGN ALLOWS THE TOP AND BOTTOM TO BE EASILY REFERENCED.

ORGANIZATION SOLUTION

INSERT/DELETE FUNCTIONS

MULTIDIMENSIONAL FOLDERS

CIRCULAR LIST

SYSTEM OVERVIEW

TECHNICAL CONTRAINTS

CONSTRAINT DETAILS

Bit Resolution 12 bits

Sampling Frequency 16 kHz

Memory External

Response Time 100 ms

BIT RESOLUTION

FromNational Instruments

PRACTICAL CONSTRAINTSTYPE 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

PROGRESS

MICROCONTROLLER

SYSTEM OVERVIEW

ADC

DAC

AMPLIFICATION

PLAY THROUGH

FILTERING

MEMORY

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

•TestingTesting

JANUARY FEBRUARY –TO MID-MARCH MARCH - APRIL

QUESTIONS/ COMMENTS?