Team ThumbStart - PowerPoint PPT Presentation

robert rebich brandon aldecoa anas hussain n.
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  1. Robert Rebich Brandon Aldecoa Anas Hussain Sponsored by: Team ThumbStart

  2. New cars use keyless entry Bring bikes up with that trend Remove the need for keys, cards... etc. Biometrics are getting cheaper Fingerprints are the most reliable Project Background

  3. Implement fingerprint scanner to be used for ignition of a motorcycle Train multiple users Reliability Ability to withstand road conditions Security Project Definition

  4. Project Costs • Design Budget: ~$2000 • Keep total system cost under $150

  5. Top Level Block Diagram

  6. Training Systems Flow Chart

  7. Trained User Flow Diagram

  8. Stand alone scanner vs. embedded scanner • Various types • Optical • Thermal • Capacitive • Electric field Various Scanners

  9. Thermal Scanner 3.3 V power input Scanner operative range (-40 to 85⁰C) Module operating range (0 to 70⁰C) Store 1900 Unique Finger Prints SFM3010-FC

  10. Currently working with ATmega48 AVR series very similar: code easily ported Flexibility with memory, I/O, cost Operating voltage range (2.7V – 5.5V) ATMEL AVR

  11. Voltage Regulation • Possible options • Zener diode voltage regulation • Off the shelf regulator

  12. Interfaces between AVR and scanner DSP • Toggling GPIO pins (on DSP) • Serial communication • RS422 or RS485 • Commands • Send (AVR to DSP) • Enroll • Identify • Delete • Receive (DSP to AVR) • Succeed • Fail Communication Suprema DSP Success, Failure Enroll, Identify, Delete ATMEL AVR

  13. Use RF • Engage relay • Start the bike • Ease installation • Replace starter relay • Wirless: no problem because cable too short • Possible back up system • Downside: Cost • Linx modules cost $8 to $10 per receiver and $5 to $7 per transmitter Radio Frequency Ignition Control

  14. Back-up Systems

  15. Unique code with every unit • inputs code using the keypad • begin the enroll process • User trained: system ready for use • New user: repeat enrolling Training

  16. Early stage • Decision about choice of AVR chip • Number of I/O ports • Size of final program • Placing • Under seat • Keypad over the rest of the electronics • Possibly removable • Packaged • Survive harsh environmental conditions • Easy to mount • Hidden scanner • Small size Packaging and Positioning

  17. Length of the ribbon cable • Currently Suprema only has a two inch cable • Would like to extend length to about 1ft • Suprema doesn’t have longer cable • Longer cable not recommend • Communication issues with extended length • Heat tolerance of Suprema DSP chip • Atmel AVR chips and scanner have industrial temp. ratings, Suprema DSP doesn’t On Going Issues

  18. QUESTIONS OR COMMENTS? Thank You