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Pujana P.
Asst. Prof. Dr. Chakarida Nukoolkit
Asst. Prof. Dr. Pornchai Mongkolnam
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Office Workers Syndrome is a group of symptoms commonly
found in office workers caused by unhealthy work habits.
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Diseases: musculoskeletal pain, headaches, insomnia, abnormal
glucose
metabolism, obesity, type-II diabetes, metabolic syndrome,
cardiovascular
disease and cancer.
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Proper Sitting Posture S it t ing upright with the head and neck
vert ically in- l ine with the torso.
Dynamic sitting Allows or encourages the seated occupant to
move.
Micro-breaks Avoid extended periods of cont inuous tasks by
taking short breaks
Left :
http://www.ergohealthy.com/ergonomics-in-the-office/Center :
http://www.buero-forum.de/en/ergonomics/sitting-and-standing/dynamic-sitting/Right
: http://www.samsill.com/ergonomic-micro-break-tips
It is not easy for computer users to be aware of their sitting
while
concentrating on their work.
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Prolonged Sitting Detection Posture Detection
Report & Alert
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Prolonged Sitting Detection
Data Mining Classification
Training Data Set & Model Building
Class: Still vs. Move
Body Joints: Head, Elbow Left, Elbow Right
Accuracy: 98.04%
10s VDO Clip
Still
Move
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Paliyawan, P., Nukoolkit, C., and Mongkoknam, P., 2014,
Prolonged Sitting Detection for Office Workers Syndrome Prevention
Using
Kinect,Proceedings of the International Conference on Electrical
Engineering/Electronics, Computer, Telecommunications and
InformationTechnology 2014 (ECTI-CON 2014), Nakhon Ratchasima,
Thailand, May 1417, pp. 1-6.
(Previous Study)
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Posture Detection
Posture Detection
Head Pitch Detection
Twisted Posture Detection
Sit-Stand Detection
Break Detection
Base Posture = Initial Posture
Relative Change in the users postures= Current posture - Initial
posture
Improper Postures
Micro-breaks
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1. Pitch Detection
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2. Twisted Posture Detection
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4. Break Detection
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3. Sit-Stand Detection
BaseCur ren t
1 Meters
Away From Keyboard
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Report & Alert
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Health Risk Level
Three levels of health risk are introduced
Lv0 or Green : healthy state
Lv1 or Yellow : caution state
Lv2 or Red : unhealthy state
Applied to:
Prolonged Sitting
Pitch
Twisted Posture
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How Health Risk Leveling System work?
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2400 40 60
Prolonged Sitting+1 / 30s , -12 / 30s
0 20 m 30 m 120 m
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2400 40 60
Prolonged Sitting
0 20 m 30 m 120 m
1200 12 36
0 1 m 3 m 20 m
+1 / 30s , -12 / 30s
Pitch+1 / 5s , -5 / 5s
1200 12 36
0 1 m 3 m 20 m
Twisted Posture+1 / 5s , -5 / 5s
Total Risk Score
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Total Health Risk Level
22Sample Data
Total Health Risk Level
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** Total Health Risk Level is represented by color, not
numeric.
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1. Monitor Screen and In-App Alarm
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1. Detailed Summary
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2. Short Summary
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3. Short Summary
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3. Posture Summary
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4. Health Trend Summary
31 32Contact : Pujana P., [email protected]
