Jordan Garth ELSYS Co-op II

Georgia Tech Research Institute

Projects

� Balance study in conjunction with Georgia Tech using ballerinas and novices

�  ISSS working on patient status monitor

Project 1: Ballerinas

�  In this study: �  The subject wears markers that reflect from

LED infrared lights to show position in space � GTRI provides accelerometer to find

orientation of the dancer and acceleration in the body frame

� Current contribution: �  Installation of sensors, data collection,

troubleshooting, and general support

Project 1: Ballerinas cont.

�  Future contribution: data analysis � Goal from the data is to get the overall body

acceleration from the body frame angular rate and body frame angular acceleration

Using the laws of motion in a rotating reference frame

Project 2: ISSS PSM Beginning

�  Three main watch comparisons

Basis Mio Alpha Adidas MiCoach

Project 2: ISSS PSM Feedback �  Wearable devices on the wrist are popular (solar watches) �  Charging strips are limited on deployment (lasting up to

days at a time), and therefore power could make some solutions impractical

�  Adidas was through to be uncomfortable due to its wide form factor

�  Overall, it was decided that preferences would lean towards a BASIS functionality in a Mio profile with a Mio band.

�  Some concern exists that larger watch faces will snag of cuff buttons and be difficult to access

�  Gloved operation was not an issue, although the BASIS was preferred because one could be less precise.

Project 2: ISSS PSM Testing �  Basis versus Mio Alpha compared on pulse oximeter �  Resting HR Procedure:

�  Put both on approx at same time, Wait 1 min, Record �  Elevated HR procedure:

�  20 jumping jacks, Wait 15 seconds, Record

Project 2: ISSS PSM Testing

� Same procedure compared to ECG

Project 2: ISSS PSM conclusion 1

� Mio Alpha based on its superior accuracy is the best watch � Now onto additional testing and redesigns

Final testing: Mio Alpha

�  Test that simulates soldier conditions: � Resting HR for 30 minutes �  50% HR (for 20-30 year olds, this is between

100-130 bpm) �  80% HR (for 20-30 year olds, this is between

150-180)

Resting Heart Rate

0

10

20

30

40

50

60

70

80

90

100

10:3

6:51

10

:37:

41

10:3

9:11

10

:40:

01

10:4

1:21

10

:42:

51

10:4

4:01

10

:45:

21

10:4

6:31

10

:47:

51

10:4

9:11

10

:50:

21

10:5

1:31

10

:52:

21

10:5

4:41

10

:56:

21

10:5

7:51

10

:59:

11

11:0

0:01

11

:01:

31

11:0

2:51

11

:04:

41

11:0

6:01

11

:07:

01

Mio HR

GE HR

Kyle Land Resting HR

Average Error:  4.992092  

0

10

20

30

40

50

60

70

80

90

100

14:4

4:43

14

:46:

03

14:4

7:03

14

:48:

13

14:4

9:03

14

:49:

53

14:5

1:03

14

:52:

13

14:5

3:13

14

:54:

23

14:5

5:13

14

:56:

23

14:5

7:33

14

:58:

33

15:0

0:04

15

:01:

03

15:0

2:13

15

:03:

13

15:0

4:04

15

:05:

33

15:0

6:33

15

:07:

34

15:0

8:33

15

:09:

33

15:1

0:33

15

:12:

23

15:1

3:14

15

:14:

13

15:1

5:13

John McClure Resting HR

mio ge

Average Error   4.621705  

50% Heart Rate

0

20

40

60

80

100

120

140

11:1

2:59

11

:13:

39

11:1

3:59

11

:14:

29

11:1

4:49

11

:15:

09

11:1

5:29

11

:15:

49

11:1

6:09

11

:16:

49

11:1

7:19

11

:17:

39

11:1

7:59

11

:18:

19

11:1

8:39

11

:19:

09

11:1

9:29

11

:19:

49

11:2

0:19

11

:20:

39

11:2

0:59

11

:21:

29

11:2

1:49

11

:22:

09

11:2

2:29

11

:22:

59

Kyle Land Medium HR

mio ge

Average percent error: 1.418672  

0

20

40

60

80

100

120

140

160

John McClure HR

Mio GE

2.139142  Average percent error:

80% Heart Rate

0

20

40

60

80

100

120

140

160

180

11:2

6:04

11

:26:

24

11:2

6:34

11

:26:

44

11:2

7:34

11

:27:

44

11:2

7:54

11

:28:

43

11:2

9:04

11

:29:

14

11:2

9:34

11

:29:

44

11:2

9:53

11

:30:

04

11:3

0:14

11

:30:

24

11:3

0:44

11

:30:

54

11:3

1:03

11

:31:

14

Kyle Land

MIO GE

Average percent error: 1.971294  

0

20

40

60

80

100

120

140

160

180

200

11:0

0:47

11

:00:

57

11:0

1:06

11

:01:

17

11:0

1:27

11

:01:

36

11:0

1:57

11

:02:

06

11:0

2:37

11

:02:

46

11:0

3:07

11

:03:

16

11:0

3:26

11

:03:

37

11:0

3:47

11

:03:

56

11:0

4:26

11

:04:

36

11:0

4:47

11

:04:

57

11:0

5:06

11

:05:

17

11:0

5:27

11

:05:

36

11:0

5:46

John McClure

Average percent error: 2.692379  

Redesign 1: Basic

Redesign 2: Hildago

Redesign 3: Stella

Solidworks of Hildago

Future designs and contributions

� May consider other designs after thinking about the logistics

�  Incorporating better battery life � Smaller fuel cell � Soldier feedback

Questions?