Bicycle Energy Measurement System

1
Bicycle Energy Measurement System

• Exigo Technologies
• Denis Dmitriev
• Mimi Wu

2
Overview

• Introduction
• Purpose
• BEMS
• Market
• Timeline Budget
• Conclusion

3
Introduction

• Exigo Technologies
• CEO COO
• Denis Dmitriev
• CFO
• Mimi Wu

4
Purpose

• Problem
• Want to know how much calories you burned while
  riding your bike, but dont want to be confined
  indoors?
• Current Solutions
• Expensive, complex systems
• Our Solution
• The Bicycle Energy Measurement System (BEMS)

5
What is BEMS

• BEMS is a simple, user friendly product that
  measures and computes the energy expended by the
  cyclist

BEMS
6
Features

• User-friendly interface
• Easy to enter personal information
• Eg. Weight of cyclist bike
• Display
• Velocity (km/h or mph)
• Distance (km or miles)
• Power (W or kCal/h)
• Energy (kJ or kCal)
• Trip duration
• Average velocity/power

7
How does it work?

• Sensor package measures
• Speed
• Inclination
• Display unit
• Inputs personal info
• Outputs energy expended

8
Operation concept
System Overview

• Cyclist enters weight using the display unit
• Start pedaling
• Energy spent displayed on LCD screen

9
Sensor package

• Houses
• main power supply
• optical encoder
• accelerometer
• signal conditioning
• circuitry
• Attaches to the fork of the bike

10
Display unit

• Mounts on the handlebars
• Processes data from the sensor unit
• Main point of communication with the user

11
Market

• Recreational Cyclists
• Monitoring physical output is part of a healthy
  lifestyle
• Fact
• 33 billion dollars are spent annually in the
  United States on weight-loss products and
  services

12
Current products

• Polar Electro, Power Tap SRM
• Cost
• Expensive
• Usability
• Complex Installation
• Calibration Required

13
BEMS

• Cost
• Can be sold for under 100
• Usability
• Easy to install
• Snap on, Snap off
• No previous experience required

14
Timeline comparison

• Milestone
• Hardware Design Finalized
• All components received
• Hardware Ready and Working
• Firmware provides desired level of functionality
• Demo

Proposed Actual Oct 05 Oct 05 Oct
14 Nov 15 Nov 07 Dec 18 Nov 20 Jan 11 Dec
10 Jan 13
15
Budget comparison

• Proposed Budget
• 300
• Actual Spending
• 140
• Funding
• 110

16
Future development

• Extensive Testing and Calibration of the BEMS
• Further research and implementations of velocity
  measurement
• Improvements of display options and user
  interface
• User Manual

17
Conclusion

• Interesting Project
• Basic functions of the system works
• Could always use more time

18

• Questions Comments?