1. Personal Fall Detection Device Jonathan Annua, Mason Edwards, Matthew Jue, Terry Sharp, Joshua Whittle Georgia Institute of Technology School of Electrical and Computer Engineering October 19-23, 2009 1

2. Project Overview Falls are responsible for 70% of accidental death in persons aged 75+ PFDD is automated system of interconnecting devices to detect user falls Primary client elderly people living alone. May need help if they fall Current devices on market require user to press a button to gain help Estimated development cost $150 No monthly fee. 2 Presented By: Matthew

3. Design Goals Transmitter Package – Fits around neck or ankle – Weight: under one pound – Covers average-size house – Battery life of six months Receiver Package – Automatically calls emergency service – Prevents “false falls” – Low maintenance 3 Presented By: Matthew

4. Design Approach - Interface 4 Presented By: Jonathan

5. Design Approach – Component Diagram Doorbell transmitter Battery Tilt switch Doorbell receiver Pressure switch PIC Automatic phone dialer Emergency contact number 5 Presented By: Jonathan

6. Design Approach - States 6 Presented By: Jonathan

7. Project Demonstration Demo consists of – Setup – Trial process 7 Presented By: Terry

8. 8 Setup In dorm room Student wears PFDD Pressure sensor connected to bed Cell phone receives call Safety mat for student Presented By: Terry

9. 9 Trial Process Student in bed Student off bed Student in bed Student off bed Cell phone ring Student fall Trial 1 Trial 2 Presented By: Terry

10. Cost Analysis 10 Presented By: Mason

11. Detecting Bed Pressure 11 Presented By: Mason

12. Transmitter Battery Life Transmitter continuously transmits when in bed Possible solutions Create one-shot circuit for pushbutton and tilt switch Add repeat circuit with one-shot timer Modify power supply 12 Presented By: Mason

13. Chime Output Output from chime is AC, needs 2-5V DC for PIC Possible solution Full-wave rectifier built with 5 V regulator 13 Presented By: Joshua

14. Schedule Getting parts – 10/29/2009 Prototyping – 10/20/2009 Trouble shooting – 11/2/2009 Soldering parts – 11/9/2009 Project demonstration – 11/16/2009 Writing final summary – 11/21/2009 14 Presented By: Joshua

15. Current Status Waiting for final parts Putting parts together Deciding on pressure sensor 15 Presented By: Joshua

16. 30% of elderly persons fall each year. 16 Did you know?