1. TIU Tracking System SponsorIntel AdvisorProf. Robert Daasch TeamDaniel Ferguson Man Hoang Lynh Pham Tri Truong Dung Le Department of Electrical and Computer Engineering

2. Introduction Problem statement Key requirements  Size  Power  Accuracy

3. Agenda System Overview Hardware Firmware Software Deployment Results Conclusions

4. System Overview

5. Agenda System Overview Hardware Firmware Software Deployment Results Conclusions

6. Hardware Devices o Tag o Detector o Proxy Components o RF12 transceiver o ATmega328p MCU o WiFly 802.11b/g transceiver Schematic and layout by Eagle CAD PCB by Sunstone

7. Hardware Tag o RF12 transceiver o ATmega328p MCU o Size: 1” x 1” x 1” o 240mAh coin cell battery Product Layout

8. Hardware Detector o RF12 transceiver o ATmega328p MCU o Status LED o Size: 3.5” x 1” Product Layout

9. Hardware Proxy o RF12 transceiver o ATmega328p MCU o WiFly 802.11b/g transceiver o Breadboard prototype o Ceramic antenna

10. Agenda System Overview Hardware Firmware Software Deployment Results Conclusions

11. Firmware IMAGE

12. Firmware Tag o Mostly in low power state o Periodically wakes up to broadcast Detector o Listen for messages from tags and other detectors o Controlled flooding o Collision avoidance via time division Proxy o Listens for messages from detectors o Forwards messages to Controller Generally o All speak a common message format which includes  Battery Information  Infrastructure for a more sophisticated routing protocol  Fixed length

13. Agenda System Overview Hardware Firmware Software Deployment Results Conclusions

14. Software Controller o Collects data from Proxy o Feed data to Location Engine o Two operating modes  Calibrating  Collects RF signature at calibration points  Stores calibration data in a local database  Locating  Passes calibration data to Location Engine  Collects and sorts data into packets  Feeds the packets to Location Engine  Stores results in MySQL Database

15. Software Location Engine

16. Software Web App o Functionalities  Visualize tags’ and detectors’ locations  Add, modify, and remove tags and detectors  Configure the tracking area o Design Goals  Fast  Simple  Easy to use o Technologies  PHP  HTML5, CSS3, JavaScript o Why Web?

17. Agenda System Overview Hardware Firmware Software Deployment Results Conclusions

18. Deployment Detector placement Calibration density Each tag has a unique ID with respect to other tags Each detector has a unique ID with respect to other detectors Proxy possible configurations o Proxy must have access to LAN o Proxy must create an Ad-Hoc Access point for Controller to connect to

19. Deployment

20. Agenda System Overview Hardware Firmware Software Deployment Results Conclusions

21. Results Size: 1” x 1” x 1”

22. Results Power o 240mAh coin cell battery o 30mA transmit current o 40µA sleep current o 1sec broadcast interval o 3ms transmit window o 0.3% duty cycle

23. Results Accuracy o Average 2m o Less than 1m at calibration points

24. Agenda System Overview Hardware Firmware Software Deployment Results Conclusions

25. Antenna design More testing o Calibration density o Detector placement Improve testability Different algorithms Environment & signal strength

26. Acknowledgement Professor Robert Daasch Alfonso Pereira & Sameer Ruiwale

27. Demo