1. ECE ILLINOIS Brandon Seiser & Andrew Smykowski
ECE 445 : Senior Design Laboratory
ECE Main Slide

2. Bike Theft Prevention and Recovery System
Brandon Seiser and Andrew Smykowski
Brandon

3. Abstract Solve an issue present on campus and in other communities
Design a product our entire team would want to use
Create a product focused on helping people make their lives easier
Brandon

4. Hardware Block Diagram
Project Overview
Hardware Block Diagram
Software Flowchart
Andrew

5. Requirements and Verifications
GPS
GSM
Micro – Controller
Power
Boost Converter
Antenna
Andrew

6. GPS Requirement Verification Consistent measurements within 30 meters
Cold start takes less than 60 seconds
Warm start takes less than 30 seconds
Brandon

7. GSM Requirement Verification Send SMS messages to user
Receive SMS messages sent from user
Andrew

8. Micro-Controller Requirements Verification Format Sent Messages
Interpret Received Messages
Receive GPS coordinates from SKM53
Brandon

9. Power Requirement Verification
Supply 4.0 volts (+/ V) at a maximum of 2A (+/- 0.2A)
Andrew

10. Boost Converter Requirement Verification
Output 5V (+/- .2V) DC signal given a 4.0V (+/- .5V) DC input to run the SKM 53 (GPS module)
Provide at least 50mA of current to the SKM 53
Brandon

11. Antenna Requirement Verification
Receive and Transmit GSM signals to communicate with user’s cell phone
Andrew

12. Overall Schematic
Brandon

13. Boost Converter Module
Prototype Stage
Boost Converter Module
GSM Module
Brandon

14. Antenna Design Long PCB lead times Quarter-Wavelength Monopole Antenna
Design Steps
Final Antenna
Long PCB lead times
Quarter-Wavelength Monopole Antenna
850 MHz
1900 MHz
36 Ohm impedance
Within 2 VSWR
Andrew

15. Completed Stage (Project on PCB)
Brandon

16. Copper Sheet Under GPS Antenna Shorted Faulty GSM chip Packaging
Resolved Problems
Copper Sheet Under GPS
Antenna Shorted
Faulty GSM chip
Packaging
Andrew (1) -> Antenna + GSM Brandon (2) -> GPS and packaging

17. Final Product

18. Target Market
Students
Outdoor enthusiasts
Parents
Andrew

19. Knowledge Gained Antenna Design Supply Chain Management
Micro-Controllers
GSM
Soldering
Debugging
Electromagnetics
Brandon

20. Ethics Not designed to track people/cars without consent of the person
Designed in a safe manner and tested to not harm user or user’s equipment
Andrew