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Bicycle Energy Measurement System
Exigo Technologies
Denis Dmitriev
Mimi Wu
Overview
Introduction Purpose BEMS Market Timeline & Budget Conclusion
Introduction
Exigo Technologies CEO & COO
Denis Dmitriev CFO
Mimi Wu
Purpose
Problem Want to know how much calories you burned
while riding your bike, but don’t want to be confined indoors?
Current Solutions Expensive, complex systems
Our Solution The Bicycle Energy Measurement System
(BEMS)
What is BEMS
BEMS is a simple, user friendly product that measures and computes the energy expended by the cyclist
BEMS
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
How does it work?
Sensor package measures Speed Inclination
Display unit Inputs personal info Outputs energy expended
Operation concept
Measures Speed &
Inclination
Calculates data from Sensor
PackageCyclist Pedals
Sensor Package Microprocessor
Display Output
Cyclist enters weight using the display unit Start pedaling Energy spent displayed on LCD screen
System Overview
Sensor package
Houses main power supply optical encoder accelerometer signal conditioning
circuitry
Attaches to the fork of the bike
Display unit
Mounts on the handlebars
Processes data from the sensor unit
Main point of communication with the user
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
Current products
Polar Electro, Power Tap & SRM Cost
Expensive Usability
Complex Installation Calibration Required
BEMS
Cost Can be sold for under $100
Usability Easy to install
Snap on, Snap off No previous experience required
Timeline comparison
MilestoneHardware Design Finalized
All components received
Hardware Ready and Working
Firmware provides desired level of functionality
Demo
Proposed ActualOct 05 Oct 05
Oct 14 Nov 15
Nov 07 Dec 18
Nov 20 Jan 11
Dec 10 Jan 13
Budget comparison
Proposed Budget: $300
Actual Spending: $140
Funding: $110
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
Conclusion
Interesting Project
Basic functions of the system works
Could always use more time
Questions & Comments?