ヘテロコア光ファイバを织り込んだスマート衣服による関节动作モニタリング

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Soka University

電子情報通信学会総合大会2018 創価大学　理工学部　情報システム工学科　助教　小山勇也

創価大学理工学部情報システム工学科助教小山勇也
共生創造理工学科西山道子
共生創造理工学科渡辺一弘
ヘテロコア光ファイバを織り込んだ
スマート衣服による関節動作モニタリング
電子情報通信学会総合大会2018
3月21日

研究背景
無意識?無拘束なセンシング
位置，動作
伝達，注意
医療
スポーツ生活支援
身体動作のモニタリング技術
ウェアラブルセンサ着用物自体に
センシング機能を持たせる

従来研究
MVN モーションキャプチャ
(XSENS .inc)
惯性センサ
Tognetti A et al, Wearable kinesthetic system
for capturing and classifying upper limb gesture
in post-stroke rehabilitation., Journal of
NeuroEngineering Rehabiltation, 2-8, (2005).
導電性繊維
Enzo Pasquale Scilingo et al, "Strain-sensing
fabrics for wearable kinaesthetic-like
systems," in IEEE Sensors Journal, vol. 3, no.
4, pp. 460-467, Aug. 2003.
Zamir Ahmed Abro et al, Development of a smart
garment for monitoring body postures based on FBG and
flex sensing technologies, Sensors and Actuators A:
Physical, Volume 272, 2018
光ファイバを用いた身体動作センシング
光ファイバセンサ
? 柔軟?軽量
? 耐電磁誘導性?電気的接点を持たない

ヘテロコア部 (1~2mm)
クラッド
125μm
コア 9μmコア 5μm
伝送路伝送路
コア 9μm
ヘテロコア光ファイバセンサ
?温度補償が不要
?リアルタイムな計測が可能
0
1
2
3
4
5
0 2 4
Opticalloss[dB]
Displacement [mm]
Displacement

違和感なく衣服の素材そのものにセンサを統合
ヘテロコア光ファイバを応用したスマート織物
?ヘテロコア光ファイバを布と一体化
?スマート織物を衣服に統合
?関節動作検出のデモンストレーション
目的
ヘテロコア光ファイバ
無意識?無拘束なスマートウェア

光ファイバ糸
60 mm
85 mm
手織り機
繊維と共に
織り込む光ファイバ伝送路
スマート織物

スマート織物の構造
ヘテロコア部
断面図
縦糸
横糸(直径1mm)
ヘテロコア光ファイバ
編み込み構造
1.0 (mm)
縦糸(直径1mm)
0.5(mm)
縦糸，横糸には市販の毛糸を使用
光ファイバ

実験構成図
LED/PD
(λ=1.31 μm) 光ファイバ
伝送路
AD コンバータ PC
サンプリング周波数:
20 Hz
スマート織物
スマート織物
背中部分
着用

まとめ
ヘテロコア光ファイバを応用したスマート織物
? ヘテロコア光ファイバを織り込んだスマート織物を作製
? 着衣状態における関節動作に対する応答試験
? 惯性センサとの比較試験
着用物に生じる形状変化で身体動作をリアルタイムにモニタ可能

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ヘテロコア光ファイバを织り込んだスマート衣服による関节动作モニタリング

1. 創価大学理工学部情報システム工学科助教小山勇也共生創造理工学科西山道子共生創造理工学科渡辺一弘ヘテロコア光ファイバを織り込んだスマート衣服による関節動作モニタリング電子情報通信学会総合大会2018 3月21日

2. 研究背景無意識?無拘束なセンシング位置，動作伝達，注意医療スポーツ生活支援身体動作のモニタリング技術ウェアラブルセンサ着用物自体にセンシング機能を持たせる

3. 従来研究 MVN モーションキャプチャ (XSENS .inc) 惯性センサ Tognetti A et al, Wearable kinesthetic system for capturing and classifying upper limb gesture in post-stroke rehabilitation., Journal of NeuroEngineering Rehabiltation, 2-8, (2005). 導電性繊維 Enzo Pasquale Scilingo et al, "Strain-sensing fabrics for wearable kinaesthetic-like systems," in IEEE Sensors Journal, vol. 3, no. 4, pp. 460-467, Aug. 2003. Zamir Ahmed Abro et al, Development of a smart garment for monitoring body postures based on FBG and flex sensing technologies, Sensors and Actuators A: Physical, Volume 272, 2018 光ファイバを用いた身体動作センシング光ファイバセンサ ? 柔軟?軽量 ? 耐電磁誘導性?電気的接点を持たない

4. ヘテロコア部 (1~2mm) クラッド 125μm コア 9μmコア 5μm 伝送路伝送路コア 9μm ヘテロコア光ファイバセンサ ?温度補償が不要 ?リアルタイムな計測が可能 0 1 2 3 4 5 0 2 4 Opticalloss[dB] Displacement [mm] Displacement

5. 違和感なく衣服の素材そのものにセンサを統合ヘテロコア光ファイバを応用したスマート織物 ?ヘテロコア光ファイバを布と一体化 ?スマート織物を衣服に統合 ?関節動作検出のデモンストレーション目的ヘテロコア光ファイバ無意識?無拘束なスマートウェア

6. 光ファイバ糸 60 mm 85 mm 手織り機繊維と共に織り込む光ファイバ伝送路スマート織物

7. スマート織物の構造ヘテロコア部断面図縦糸横糸(直径1mm) ヘテロコア光ファイバ編み込み構造 1.0 (mm) 縦糸(直径1mm) 0.5(mm) 縦糸，横糸には市販の毛糸を使用光ファイバ

8. 実験構成図 LED/PD (λ=1.31 μm) 光ファイバ伝送路 AD コンバータ PC サンプリング周波数: 20 Hz スマート織物スマート織物背中部分着用

11. 実験结果

14. θ

15. まとめヘテロコア光ファイバを応用したスマート織物 ? ヘテロコア光ファイバを織り込んだスマート織物を作製 ? 着衣状態における関節動作に対する応答試験 ? 惯性センサとの比較試験着用物に生じる形状変化で身体動作をリアルタイムにモニタ可能