Wildlife Tracker: Complete Design Review

1. Wildlife Tracker: Complete Design Review MSD I Team P14347

2. Team P14347 “Arrow Guys” & Introduction

3. Agenda • Progress Report • Project Background • System Analysis • Mechanical Analysis • Electrical Analysis • Risk Assessment • Test Plan • MSD II Plan • Questions

4. Progress Report • Google Maps API programming has been explored • User Device Module Block Diagram Established (w/ Pin Connections) • Arrow Attachment Deviation Experiment has been conducted • Microcontroller selected • Budget Finalized • BOM refinement is in progress • Received Linx Technology products Previous Questions: • Further FCC regulations, 1W for a transmission of digitally modulated signals in our bandwidth (902-928 MHz) • Using one active antenna on each device, multiple miniature embedded antennas on the arrow attachment

5. Current & Desired State • Injured animals can travel substantial distances, may be difficult to track • Game which has been shot and cannot be found leads to more animal deaths and inefficient hunting • Wildlife Tracker will detach from arrow and remain attached to animal • Handheld device will provide GPS location of animal

6. Stakeholders • Primary Customer: Dr. Eli Saber • Faculty Guide: Art North • End Users: Bow Hunters • Other: Hunting Stores/Distributors, Game Wardens, Environmental Activists, Linx Technologies • MSD Team 14347

7. Project Deliverables • Durable re-attachable tracking device that connects onto an arrow • Handheld user device that monitors the location of the GPS attachment • ‘Second Chance’ retrieval feature (In case shot is not fatal) • Intuitive, easy to understand User Manual • Cellphone GPS application

8. Benchmarking • GameVector Deer Recover System • $399.99 • 45 Grains (2.9 grams) • Battery life of 48-72 hours • Up to two mile range • Tested for bows shooting up to 300 feet per second • Currently sold out

9. Customer Requirements

10. Engineering Requirements

11. Functional Decomposition

12. Morphological Analysis

13. Physical Architecture GPS Satellites iPhone GPS Receiver ActiveAntenna(s) Google Maps GPS Receiver Battery Audio Jack RF Transmitter On/Off Switch Microcontroller Arrow Clip Tx Antenna RF Receiver RX Antenna Hide Hook Arrow Attachment Handheld Device

14. Bow Efficiency vs Arrow Weight Example B.W. Kooi - “On the Mechanics of the Bow and Arrow”

15. Front of Center Optimal F.O.C values were found at Goldtip.com and ArcheryReport.com

16. Arrow Trajectory

17. Form Factors

18. Arrow Flight Test • Test Procedure • Bow sights calibrated for regular arrow • 5 shots fired from 20 meters of each design • X and Y Distances measure from bulls-eye • Calculate mean, median, standard deviation…etc

19. Test Attachments • 400 Grain Carbon Arrows with 125 Grain Field Tips • 65lb Martin “MAG CAT” Compound Bow

20. Testing Photos

21. Arrow Flight Test

22. Other Testing Notes • The attachments ended up being much heavier than expected • Arrow speed was not measured but was visibly slower for all attachments • All attachments except the streamline were very loud when traveling through the air • Experimental Video to display

23. Arrow Attachment Device Electronics

24. User Device Electronics

25. GPS Receiver • Linx Technologies RXM-GPS-RM • Includes evaluation kit • Operating Voltage: 3.0-4.3V (Typically 3.3V) • Supply Current: 12-14mA (Peak of 44mA) • NMEA Output Messages • Embedded Ceramic Antenna (not included)

26. GPS Receiver

27. Linx Technologies TRM-915-R250 • No evaluation kit included, plan to substitute using Raspberry Pi • Operating Voltage: 3.3V • Supply Current: • Receive: 25mA • Transmit: 60-200mA • Frequency: 902-928MHz • Can transmit to distances of up to 4km • Relying on newer model being released this summer RF Transceiver

28. Microcontroller • Made by Microchip Technology • Programmable Intelligent Computer • Low Cost • Widely Used • Serial Programming in C • MPLAB • Free IDE provided by Microchip • Operating Current • 175μA • Operating Voltage • 2.0V – 5.5V

29. TX Antenna: • 66089 Series by Anaren • 915MHz center frequency • SWR <1.7 typical • Gain: 3dBi • Quarter wave • RX Antenna: • ANT-916 by Linx • 916MHz center frequency • SWR <1.9 typical • Gain: 1.8dBi • Quarter wave • GPS Antenna: • W3011A by Pulse Electronics • Ceramic • Gain: 3-3.3dBi • 1.575GHz center frequency • Surface mount Antenna Selection

30. Conceptual Model of User Device

31. Power Consumption

32. Google Maps Integration Handheld Device Application Google Maps Display Phone Location Receive GPS Coordinates Display GPS Coordinate Location Handheld Device Relay GPS Coordinates to Google Maps Store Locations on the Cloud as a “Map” Sends Save Command to Google Maps

33. Google Maps API

34. Risk Assessment A

35. Risk Assessment B

36. Test Plan

37. Bill of Materials

38. Project Plan for MSD II • Prototyping Design • 3D Printing Enclosures • Application Development (for Google Maps Integration) • Integrate the User Device Module • Monitor budget • Test for engineering requirements • Utilize summer for further progress

39. Questions?