Personal Fall Detection Device
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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
description
Personal Fall Detection Device. Georgia Institute of Technology School of Electrical and Computer Engineering. Jonathan Annua, Mason Edwards, Matthew Jue, Terry Sharp, Joshua Whittle. October 19-23, 2009. Project Overview. Falls are responsible for 70% of accidental death in persons aged 75+ - PowerPoint PPT Presentation
Transcript of Personal Fall Detection Device
Personal Fall Detection Device
Jonathan Annua, Mason Edwards, Matthew Jue, Terry Sharp, Joshua
Whittle
Georgia Institute of TechnologySchool of Electrical and Computer
Engineering
October 19-23, 20091
Project OverviewFalls 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.
2Presented By: Matthew
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
3Presented By: Matthew
Design Approach - Interface
4Presented By: Jonathan
Design Approach – Component Diagram
Doorbell transmitter
Battery Tilt switch
Doorbell receiver
Pressure switch
PIC Automatic phone dialer
Emergency contact number
5Presented By: Jonathan
Design Approach - States
6Presented By: Jonathan
Project Demonstration
• Demo consists of– Setup– Trial process
7Presented By: Terry
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Setup• In dorm room• Student wears PFDD• Pressure sensor connected to bed• Cell phone receives call• Safety mat for student
Presented By: Terry
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Trial Process
Student in bed
Student off bed
Student in bed Student in bed
Student off bed
Cell phone ring
Student fall
Trial 1 Trial 2
Presented By: Terry
Cost Analysis
10Presented By: Mason
Detecting Bed Pressure
11Presented By: Mason
Platform
Spring
Pushbutton
Adjustable SpacerLED
< 2 in
Platform
Spring
Pushbutton
Adjustable SpacerLED
< 2 in
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
12Presented By: Mason
Chime Output
• Output from chime is AC, needs 2-5V DC for PIC
Possible solution• Full-wave rectifier built with 5 V regulator
13Presented By: Joshua
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
14Presented By: Joshua
Current Status
• Waiting for final parts• Putting parts together• Deciding on pressure sensor
15Presented By: Joshua
30% of elderly persons fall each year.
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