TrackAlert A Short-Range Emergency Tracking System

1. TrackAlertA Short-Range Emergency Tracking System Group 14 Melissa Grenier Carlos Gonzalez Gina McGhee Sainjulien Senatus

2. Project Description • A tracking system that can track a person within at least a 1 mile radius • The person will be wearing a traceable GPS device that communicates with a stationary base station • The device’s location will be available through a web application accessible through a computer and/or handheld internet-enabled device • RFID will be used as an alarm system to alert the base station when the person has left the perimeter (home)

3. Motivation and Purpose • Implementation of GPS, RFID, and different aspects of electrical and computer engineering • Meaningful project that can be useful and beneficial in a real life setting • Idea: To keep people that require around the clock supervision from wandering off from their homes: • Small children and mentally handicapped people • One example, autistic children • 2012 survey: Out of 1,218 children, half of them had wandered off or attempted to wander off at least once after the age of 4 • There are existing products that require a monthly fee (due to the use of cell towers)

4. Goals and Objectives Families with small children or mentally handicapped relatives Daycares Mental Institutions GPS Device Lightweight Low On Power Consumption Easily carried (even by a child) Long battery life RFID System Act as an alarm monitoring system Alert base station when and which GPS device leaves the house Web Application Easy to use user interface Available from any device that has internet connectivity Host multiple users simultaneously Be able to display GPS location on a map Base Station Communicate with more than one GPS device Communicate with device up to a 1 mile distance Receive messages from RFID system Communicate with web app

5. Specifications

6. Overall System

7. Overall System

8. GPS Device

9. GPS Device • LS20031 Module • Embedded Antenna • Up to 66 satellites at time • Build-in battery • 3.3V • 42mA • Operating Temperature • 14g • Dimensions (mm)

10. GPS Device • GPS Module Connection • 1. Power Input • 2. Data Input • 3. Data Output • 4. Ground • 5. Ground • Output

11. GPS Device • Atmega328 • Six Sleep Modes • 23 Programmable I/O lines • Operating Voltage1.8 -5.5V • 5V, 8 MHz, Active: 5.2mA typical, 9mA max • Temperature Range -40C to 85C

12. GPS Device • LCD Character Display • Personal Information • Odometer • High Quality 16x2 • 3.3V Power Supply • 1.5mA • Operating Temperature 0C to 50C • Size: 8.6 x 36 x 80mm

13. GPS Device • Rechargeable Battery • Polymer Lithium Ion Battery • 3.7V at 2000mAh • Temperature • Weight: 36g • Size:5.8x54x60mm

14. GPS Device • Power Supply • LMR62014X • LM3668-2833 • Loads • 5 hours minimum in active mode

15. GPS Device • Schematic

16. Overall System

17. RFID control system

18. Electrical schematic • 12 volts (source) • 3 voltage regulators (LM2574). These voltage regulators will be placed in parallel in order to have the same 12 volts as input. • 3.3 VDC (MCU) • 5 VDC (Reader) • 3.3 VDC (Xbee)

19. Microcontroller: MSP430F2370 • # of pins 40 • Voltage range 1.8-3.6 V • Interfacing parallel/SPI • Frequency 13.56 MHz • USCI mode UART, IrDA • AMC 270 uA AMC: Active Mode Current

20. Reader • # of pins 32 • Voltage range 2.7 V-5.5 V • Protocol ISO 15693 • Interfacing parallel/SPI • Frequency 13.56 MHz • Dimension 5mmx5mm

21. AC/DC Adapter • Input: Voltage 120 VAC Frequency 60 Hz • Output: Voltage 12 VDC Current 500mA

22. Overall System

23. Base Station Overview

24. Flowchart

25. MCU Necessities • UART Connectivity • Baud Rate Variability • TCP/IP Stack Integration • 10/100 Ethernet MAC/PHY

26. MCU Comparison

27. Stellaris LM3S8962 Development Board Code Composer Used In Similar Project 100-pin LQFP  Integrated Ethernet controller

28. Programming Uses Code Composer Preinstalled Examples C/C++ In-Circuit Debugger Interface JTAG Port

29. Wireless Communication Bluetooth Wifi Radio frequency A09-HASM-675-ND

30. Display System • 16x2 character LCD • 3.3V power supply • Yellow LED Backlight • 5x8 dot characters • 11 general I/O pin interface • 1/16 duty cycle • Dimensions: 0.34 x 1.4 x 3.2" (8.6 x 36 x 80mm)

31. Power Supply • 9V AC/DC Adapter • 1A Output Current • TPS6215X /TPS560200 • DC-DC Step Down Converter

32. Base Station Schematic

33. Overall System

34. Database • Looking for: • Scalability • Security • Low Maintenance • Reliability • Low Complexity Level

35. Database • Google App Engine • Cloud • No need to manage server • Python/Java • Web2Py Framework • Python • Data Abstraction Layer • MVC Framework • Built to work with Google App Engine

36. User Interface • Desired Features: • Cross-Platform • Free of Charge • Software Availability HTML5 Web App WINS!

37. User Interface • Backend Platform • Google App Engine • Frontend Framework • JQuery Mobile and Angular.js • APIs • Google Authentication • Google Geo • Twilio Global Text Messaging

38. User Interface • Allows user to: • Add a new device • Check current status: • Battery life • Last known location • Last update time • Delete device • Request update

39. Expenses GPS Device Component Base Station Component RFID Alarm Component

40. Project Distribution

41. Progress Chart

42. Issues and Concerns • Soldering • Programming • Range (possibly, based on research) • GPS boot up time takes a while • PCB Layout

43. Questions?