iBOT Weight Sensor

1
iBOT Weight Sensor

• BME 401 Design
• Mentor Dr. David Gray
• Group Members
• James Hubenschmidt, Vijay Jayaraman, and Girish
  Murthy

2
Background Information

• What is the iBOT?
• 5 main functions
• Standard
• 4 Wheel Drive
• Stair Climbing
• Balance
• Remote Control
• Calibrating the iBOT to each person and other
  features of the iBOT

3
What Is The iBOT
4
iBOT Specifications
5
Problem Statement

• Limitations of iBOT
• Need for a weight sensor to detect if maximum
  weight capacity has been exceeded
• Importance of Weight Sensor in Balance Mode

6
Exploration of Existing Solutions

• Fold-up Portable Wheelchair Scale

7
Exploration of Existing Solutions (Contd)

• Quick-Medical QM3300 Wheelchair Scale Weighing
  Beams

8
Exploration of Existing Solutions (Contd)

• Weighing Wheelchair System

9
Patent and Literature Search
10
Preliminary Analysis

• Set of metrics to analyze possible solutions
• 9 metric categories defining all desirable and
  essential traits

11
Metrics

• Cost
• Time Required
• Feasibility
• Accuracy
• Weight

• Aesthetics
• Reliability
• Durability
• Interface

12
Overview of Essential Metrics

• Cost - 500
• Time - 2 Months
• Reliability - As reliable as iBOT itself
• Power
• Endure Shocks
• Interface - Communicate quickly and effectively
  overload

13
Responsibilities

• Girish
• Patent and Literature Searches
• Contacting Engineers, Vendors
• Vijay
• Web Design
• Background Information
• Patent and Literature Searches
• James
• CAD Drawings
• Mechanical Design Aspects

14
Timeline
15
Questions