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Atsutoshi Ikeda(1), Yasuyuki Otoda(2), Etsuko Ueda(2), Takayuki Nakamura(3)
and Tsukasa Ogasawara(1)
(1) Nara Institute of Science and Technology(2) National Institute of Technology
(3) Wakayama University
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There is a need to prevent elderly patients from turning over and falling off their beds
When elderly patients try to leave from their beds, there are a lot of chance to get serious physical injuries
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Low-costEasy operationSafety and cleanHigh reliability
Magnetic type sensor Pressure sensor
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We propose low-cost and highly reliable patient monitoring device, MIMAMORI device, that monitors patient state in the bed
Device design concepts- Simple and economical hardware
- Component-oriented software
- Open-source
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(1) Xtion LIVE PRO
(3) Patient status LED
(4) System status LED
(5) Power switch
(6) Start switch
(7) Reset switch
(2) Raspberry Pi
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Open RTM implementation
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2 2 2 2
2 2 2 2 3
N=0
N=2
N=1
Capture depth image
Bed area extraction using the projective transformation matrix
Calculation of HLAC future
State classification by SVM SafeDangerous
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150
MIMAMORI device
60100
Subject: 1(170cm, 60kg)
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Safe state Dangerous state
Lying in the bed
Sitting on the bed
Moving out from the bed
Leaning against the fence
Training: 2003, Variation: 2672
Training: 2004, Variation: 2837
Training: 2005, Variation: 3476
Training: 2004, Variation: 3492
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Safe state Dangerous state
Lying in the bed
Sitting on the bed
Moving out from the bed
Leaning against the fence
Training: 2003, Variation: 2672
Training: 2004, Variation: 2837
Training: 2005, Variation: 3476
Training: 2004, Variation: 3492
Actual state
Safe Dangerous
Result
Safe 93.5% 6.5%
Dangerous 4.8% 95.2%
FNR
FPR
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http://robotics.naist.jp/~atsutoshi-i/mimamori/
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We are proposing low-cost and highly reliable patient monitoring device
Device design concepts - Simple and economical hardware
- Component-oriented software
- Open-source
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