MyRoomMateFall Detection System

Overview for GrandCare Systems Webinar

March 26, 2009Mike Dempsey(978) 337-0864

miked@IndependenceLabs.com

Confidential© 2009 Independence Labs &

Caduceus Wireless, Inc.www.IndependenceLabs.com2

The Problem• In the community, one-in-three people over 65 will fall this

year• This results in 1.8M emergency room visits, 433,000

hospitalizations and almost 15,000 deaths• These falls cost almost $40B annually• In addition, 50 to 75% of nursing home residents fall each

year resulting in 1800 deaths• One injurious fall increases nursing home costs by

$5325/yr• Over half of the elders who fall are unable to get up

without assistance and after a fall “longer times spent helpless…were associated with the person’s being found dead or being transported to the hospital, being admitted, and being discharged to other care rather than to independent living.”

Confidential© 2009 Independence Labs &

Caduceus Wireless, Inc.www.IndependenceLabs.com3

Solution Objectives• Detect falls without the elder having to do

anything, wear anything, push any buttons• Should be as reliable as a smoke detector• Assumed elders are living alone with no technical

help and little money• Low cost – probably offered using a leasing

model with PERS• Very simple - installed by elder• Integrates into existing PERS infrastructure• False negatives are worse than false positives

Confidential© 2009 Independence Labs &

Caduceus Wireless, Inc.www.IndependenceLabs.com4

System Overview

Fall Sensors(one per room)

Console withTwo-Way Voice Response

Center

PhoneLine

WirelessLinks

Confidential© 2009 Independence Labs &

Caduceus Wireless, Inc.www.IndependenceLabs.com5

Sensor Overview

Two sensor “heads” with unique optical and mechanical configurations

On board electronics sense, digitize and filter signals – then a custom algorithm looks for unique “fall signatures”

Fall alarms and motion data sent via wired or wireless link

Confidential© 2009 Independence Labs &

Caduceus Wireless, Inc.www.IndependenceLabs.com6

Reception Patterns

~3 ft

~9 ft

~ 25 ftSide View of Room

~3 ft

~9 ft

~ 25 ftSide View of Room

~3 ft

~9 ft

~ 25 ftSide View of Room

~3 ft

~9 ft

~ 25 ftSide View of Room

Confidential© 2009 Independence Labs &

Caduceus Wireless, Inc.www.IndependenceLabs.com7

Simple Algorithmic Concept

A “true” fall is fast and uncontrolled motion toward the floor. A large amount of IR energy moves from the top field into the bottom field relatively quickly. The signals should be well correlated in time. The activity in the top and bottom fields sensed before and after the fall should be consistent with the circumstances expected during a fall.

Confidential© 2009 Independence Labs &

Caduceus Wireless, Inc.www.IndependenceLabs.com8

• Multiple people walking in room (1)• Single person walking randomly in room (44)• Dog playing in room (2)• One person in room, bends over to pet dog (3)• Sit in chair, bend over to pet dog (4)• Crawl on floor between 10 and 20 feet (20)• Sit in chair at 15 feet, bend over to tie shoes

(23)• Sit in chair at 10 feet, bend over to tie shoes

(37)• Sit in chair at 25 feet, bend over to tie shoes

(38)• Get down on one knee to pick something up on

floor (24)• Down on hands-and-knees, as if looking for

something on floor (25)• Sit on edge of bed, then lie down, at 15 feet

(26)• “Flop” onto bed from standing position at 15 feet

(27)• Child and adult both walking randomly in room

(29)• Child crawling on floor with adult in room (30)• Child falling to floor with adult in room (31)• Bend over from walking to pet dog (32)• Get down on one knee to pet dog (33)• Dog jumping off of couch (45)

• Random walking between 8 and 12 feet, fall at 10 feet (5)• Random walking between 12 and 20 feet, fall at 15 feet (6)• Random walking between 20 and 30 feet, fall at 20 feet (7)• Random walking between 10 and 20 feet, fall at 15 feet, but stay very

still (simulating unconsciousness – 18)• Sit in chair at 10 feet, fall forward off chair (8)• Sit in chair at 15 feet, fall forward off chair (9)• Sit in chair at 20 feet, fall forward off chair (10)• Sit in chair at 30 feet, fall forward off chair (11)• Stand still at 10 feet, fall forward toward sensor (12)• Stand still at 10 feet, fall away from sensor (34)• Stand still at 20 feet, fall forward toward sensor (13)• Stand still at 20 feet, fall away from sensor (35)• Stand still at 30 feet, fall forward toward sensor (14)• Stand still at 30 feet, fall away from sensor (36)• Stand still at 15 feet, fall forward toward sensor (15)• Stand still at 15 feet, fall on-axis but away from sensor (16)• Stand still at 15 feet, fall to left or right of axis of sensor (17)• Walk randomly between 10 and 20 feet, fall at 15 feet, move

randomly on ground simulating pain (19)• Walk randomly between 10 and 20 feet, fall at 15 feet, then crawl on

hands-and-knees (21)• Stand from chair at 15 feet, but stagger and fall forward, then crawl

on hands-and-knees (22)• One child and one adult in room, adult falls at 15 feet (42)• One child and one adult in room, adult falls at 25 feet (43)• Walk randomly, fall at 15 feet, have dog run into room for rescue (46)• Multiple adults in room, one falls at 15 feet (40)• Multiple adults in room, one falls at 25 feet (41) • Fall out of bed at 15 feet (28)• Fall out of bed at 25 feet (39)

No Falls (n=19) With Falls (n=27)

Test Scenarios

Confidential© 2009 Independence Labs &

Caduceus Wireless, Inc.www.IndependenceLabs.com90 5 10 15 20

-300

-200

-100

0

100

200

300

c:\fall\e18_ard\34.csvTrue Fall at approximately 14.2 seconds

Time in Seconds

Blu

e Lo

ng D

ash

is B

otto

m, B

lack

Sho

rt D

ash

is T

op, S

olid

Red

is F

all

The “Perfect” Fall

Confidential© 2009 Independence Labs &

Caduceus Wireless, Inc.www.IndependenceLabs.com10 0 5 10 15 20 25 30

-300

-200

-100

0

100

200

300

c:\fall\e18_ard\5.csvTrue Fall at approximately 24.5 seconds

Time in Seconds

Blu

e Lo

ng D

ash

is B

otto

m, B

lack

Sho

rt D

ash

is T

op, S

olid

Red

is F

all

A More Complicated Fall

Confidential© 2009 Independence Labs &

Caduceus Wireless, Inc.www.IndependenceLabs.com11

Walk, Fall and Crawl

0 5 10 15 20 25 30

-300

-200

-100

0

100

200

300

c:\fall\e18_ard\21.csvTrue Fall at approximately 20 seconds

Time in Seconds

Blu

e Lo

ng D

ash

is B

otto

m, B

lack

Sho

rt D

ash

is T

op, S

olid

Red

is F

all

walk crawl

fall

Confidential© 2009 Independence Labs &

Caduceus Wireless, Inc.www.IndependenceLabs.com12

“Stumble” Fall From a Chair

0 5 10 15 20 25

-300

-200

-100

0

100

200

300

c:\fall\e18_ard\8.csvTrue Fall at approximately 15 seconds

Time in Seconds

Blu

e Lo

ng D

ash

is B

otto

m, B

lack

Sho

rt D

ash

is T

op, S

olid

Red

is F

all

Confidential© 2009 Independence Labs &

Caduceus Wireless, Inc.www.IndependenceLabs.com13

Bending Over to Tie Shoes

0 5 10 15 20 25

-300

-200

-100

0

100

200

300

c:\fall\e18_ard\23.csvNo Real Fall

Time in Seconds

Blu

e Lo

ng D

ash

is B

otto

m, B

lack

Sho

rt D

ash

is T

op, S

olid

Red

is F

all

Confidential© 2009 Independence Labs &

Caduceus Wireless, Inc.www.IndependenceLabs.com14

Development Status

BasicResearch

ProductionPrototype

Proof ofConcept

LabProto 1

FieldTesting

LabProto 2

FieldTesting

We are here – and looking for partners to help test, license or market the solution. We invent things – we don’t market or sell things.