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Optimization of installing methods for textile products with inserted FBG sensors capable of measuring biological information

Research Project

Project/Area Number 21K02072
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 08030:Family and consumer sciences, and culture and living-related
Research InstitutionShinshu University

Principal Investigator

Shouhei Koyama  信州大学, 学術研究院繊維学系, 准教授 (30777818)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsスマートテキスタイル / 生体情報 / FBGセンサ / 最適装着法 / 脈動ひずみ / 脈動ひずみ信号 / 橈骨動脈 / 最適測定点
Outline of Research at the Start

手首の脈は心臓の収縮を生体表面で検知できる部分であるため,脈動をひずみとして検知することで心臓を中心とする循環器による脈拍数・血圧・血糖値を含む生体情報を計測できる.本研究では光ファイバ型のひずみセンサであるFBGセンサを挿入した繊維製品の開発と共に手首の橈骨動脈の脈を打つ部分への最適な装着方法を明確にする.その際,手首の動きと橈骨動脈の脈動点の位置関係,FBGセンサの最適な設置条件や繊維製品への導入方法を検証する.これらを明確にしてカフレスでの血圧計測と非侵襲の血糖値計測を同時かつ連続的に実施可能な新たなスマートテキスタイルの開発を目指す.

Outline of Final Research Achievements

Optimal installing conditions for measuring radial artery strain with a optical fiber type strain sensor were verified. The experimental results showed that when the sensor was installed within ±5 mm in the direction of the radial artery at from the pulsation point a pressure of 10-15 kPa, a pulsation strain signal with a high signal-to-noise ratio was measured. As an installation method of the sensor to the body, a wristband was developed in which an optical fiber sensor was embedded on a ribbon fabric in the form of a wave with a period of 50 mm. This wristband was elastic and could follow the movement of the wrist as it moved. Therefore, the sensor could be always installed at the pulsation point. From these results, the optimal sensor installation point and the development of a textile product to which the sensor can be installed have been achieved.

Academic Significance and Societal Importance of the Research Achievements

生体情報を知るためには生体から発せられる信号を計測する必要があり,生体と常に付着する衣服は生体情報センサとして最も有効である.生体情報であるバイタルサインのうち脈拍数や血圧は循環器の情報であり,血糖値も重要なサインである.そこで,手首の脈動ひずみから循環器の情報を測定するためのセンサ開発として,最適なセンサ設置方法およびセンサを含む繊維製品の開発を進めた.本研究の結果,最適なセンサ設置条件が明確になりセンサを含む繊維製品化が開発されたことから,日々の生体情報を容易に計測することが可能となり,健康寿命延伸に貢献できることが期待される.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (7 results)

All 2023 2022 2021

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (6 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Verification of Optimal Installation Point of FBG Sensor for Pulsation Strain Measurement2023

    • Author(s)
      Koyama Shouhei、Yoda Tatsuya、Yamamoto Masashi、Shiokawa Soushi、Kane Kaito、Martinka Michal
    • Journal Title

      IEEE Sensors Journal

      Volume: 23 Issue: 16 Pages: 18183-18192

    • DOI

      10.1109/jsen.2023.3289966

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] FBG センサを挿入した経編地の巻き付け圧力が脈動ひずみ信号へ及ぼす影響2023

    • Author(s)
      山本勝志,嘉根海人,塩川宗志,児山祥平
    • Organizer
      生体医工学シンポジウム2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] FBG センサによる若年者と高齢者の橈骨動脈脈動モーション変化の検証2023

    • Author(s)
      塩川宗志,嘉根海人,山本勝志,児山祥平
    • Organizer
      生体医工学シンポジウム2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Verification of radial artery strain detection area using by FBG sensor2022

    • Author(s)
      Tatsuya Yoda, Shouhei Koyama
    • Organizer
      Asian Textile Conference 16
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Influence of wrist dorsiflexion angle on the measurement signal of radial artery strain with FBG sensor2022

    • Author(s)
      Shouhei Koyama, Tatsuya Yoda
    • Organizer
      CLEO-PR 2022/ISOM'22/ODF'22
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 手首加圧力の均一化にむけた補助材の圧縮特性の検証2021

    • Author(s)
      寺平大亮,矢野郁也,児山祥平
    • Organizer
      計測自動制御学会中部支部シンポジウム&若手研究発表会2021
    • Related Report
      2021 Research-status Report
  • [Presentation] 光ファイバ型ひずみセンサの設置条件による計測信号波形への影響2021

    • Author(s)
      依田達哉,児山祥平,古田みいこ
    • Organizer
      2021年度繊維学会秋季研究発表会
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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