Adjustable Book Shelf

1
Adjustable Book Shelf

• Team Members
• Vineeth Alva
• Ankit Dhawan
• Shohei Shibata

2
Presentation Outline

• Problem Definition
• Concept Generation
• Concept Evaluation
• Current Progress
• Expected Semester Outcome
• Overall Project Plan

3
The Dorm Desk and Bookshelf
4
Problem Definition

• Bookshelf unit in dorm rooms do not follow the
  guidelines set by ADA (Americans with
  Disabilities Act).
• Height range of 9 to 48 Lowest point of
  current shelf is approximately 50.
• Front reach maximum of 25 The current shelf
  unit is located at exactly 25.
• Goal To design a shelf unit that is within the
  guidelines set by ADA, within the limited space
  available in a dorm room.
• User must not insert more than 5 lb of force to
  access the bookshelf.

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Concepts Generated

• Sliding Down Bookshelf
• Bookshelf will be placed in existing bookshelf in
  dorm, lowered and raised onto desk
• Side of Desk Low
• Bookshelf placed underneath desk, moved in and
  out
• Side of Desk High
• Bookshelf placed on side of desk. Above desk such
  that there is no need for it to move
• Swing Shelf
• Placed underneath desk, swings towards user.

6
Concept Evaluation

• Evaluation was done using decision matrix
• Evaluated each concept against customer
  requirements such as Reachability, Ease of
  Access, Cost.
• Compared each concept with the existing bookshelf
• Side of Desk High, was chosen for its
  reachability and use of space.

7
Current Progress

• Dimensions of shelf unit and platform complete
• Performing force analysis
• Designing moving mechanism and switch

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Current Progress
9
Current Progress
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Force Analysis

• Stress Analysis
• Plywood structure is strong enough for the
  bookshelf
• Weight of motor mechanism to be determined
• Acceleration of shelf
• 0.13 ft/sec2 for movement in 5 seconds
• This number determines force needed by the motor.

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Expected Semester Outcome

• Complete Design
• Finish designing moving mechanism
• Choose materials, parts
• Build Prototype
• Complete as designed
• Test

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Overall Project Plan

• Prototype completed this semester
• Start testing prototype, continue testing in Fall
• Delivery in November, 2004

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• Objective To help students with physical
  disabilities locate the best accessible path
  between campus locations by drawing a map
• Can also be used by visitors

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Group Members
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Last Semester

• Smaller partly working map
• DEMO!!!!
• Able to integrate bigger campus map
• Problems with the path drawing
• Extended the campus coverage

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Semester Goals

• Improve path drawing
• Expand area, and plan improvements
• Resize existing map
• Add turn by turn directions
• Faster map loading using BMP image format

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Web-Interface

• Facilitates channeling of the user input data to
  the best path implementation routine
• Simple and easy to use
• Easy to maintain for future semesters
• Accessible via home computers, not just kiosk

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Nodes in the Map
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Node Database

• Database example
• For GPS coordinates (Latitude, Longitude)

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This Semester

• Accurate Path Drawing Done
• Obtain more GPS coordinates for all of campus
  Done
• Kiosk Ready
• Faster map loading Nearing Completion
• Turn by turn Directions In Development
• Project Delivery End of the Semester

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Coverage Area

• Engineering Mall
• Area surrounding (and including) BRNG, MATH, and
  CL50
• Clock tower area (SC, CS, PSY)
• Chemistry area (WTHR, BRWN, GRIS, HEAV, etc)
• Union Area (PMU, Stewart, HICKS)

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Project Partner

• Updated the Project Partner about the current
  status
• Informed about our semester goals
• Will inform about our delivery plans

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DEMO!!!!!
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Semester Timeline
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Continuity Plan

• Add new buildings to the database
• Add turn by turn directions if possible

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Questions?
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GPS-DVI

• Global Positioning System
• Device for the Visually Impaired

• Team members
• Howard Lityo 5. Sak Mahasuverachai
• Sivanit Ratanadib 6. Abdul Zahid
• Ryan Hicks 7. Michael Alexander
• 4. Bryn Nealis

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Overview

• Introduction
• Previous Semester
• Project partner meeting
• Semester Goal
• Current State
• Demo
• Problems

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Introduction

• GPS-DVI Team project that involves the
  development of a handheld device, incorporating a
  PDA with a GPS receiver which will aid students
  who are visually impaired in navigation around
  the campus.

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Design Objectives

• Input
• Input building name
• Braille overlay
• Output
• Voice
• Turn by turn directions
• Input confirmation
• Assumptions
• Visually Impaired user
• On West Lafayette Campus

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Previous Semester

• Completed shortest path algorithm
• GPS Receiver data
• Not able to update in continuously
• Voice Output
• Research, available options, etc.
• GUI completed
• Modified again this semester

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Semester Goal

• User must only input destination
• Node Number
• Use actual GPS data
• Node-Node navigation
• Not turn-by-turn
• Warn user if off track
• Some voice output
• Input confirmation, off track warning, current
  location
• Assume user within our map coverage area
• Have EVERYTHING integrated and working together

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Current State

• GPS Receiver functioning
• Updating continuously
• Updated GUI
• User off track functionality
• Determination of current node
• Voice output
• GPS coordinates collected

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Gantt Chart
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Project Partner Meeting

• Updated on current status
• Believes that we are on track
• Discussed semester goal

36
Demo Shortest Path
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Demo - Software
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• Questions,
• Comments, Suggestions