JP5874130B2 - 人の歩行を検出するためのシステムおよび方法 - Google Patents
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Description
− 前記センサによって送出された測定信号を時間窓にわたって処理するための処理手段であって、前記信号における優位周波数を探索するための手段を含む処理手段と、
− 第1の測定軸の信号の優位周波数と第2の測定軸の優位周波数との間、または前記センサによって送信された測定値ベクトルのユークリッドノルムの優位周波数と第2の測定軸の信号の優位周波数との間の比率がほぼ2に等しい場合に、人の歩行を検出するための検出手段と、が含まれる。
− 時間窓にわたって、前記移動センサによって送出された測定信号が処理され、前記処理が、前記信号における優位周波数の探索を含み、
− 第1の測定軸の信号の優位周波数と第2の測定軸の優位周波数との間、または前記センサによって送信された測定値ベクトルのユークリッドノルムの優位周波数と第2の測定軸の信号の優位周波数との間の比率がほぼ2に等しい場合に、前記人の歩行が検出される方法がまた提案される。
Claims (15)
- 2軸もしくは3軸の加速度計(CM)を含むハウジング(BT)を備えた、人の歩行を検出するためのシステムであって、前記ハウジングを、前記人の身体の上部に装着する装着手段を備え、その結果、前記加速度計(CM)の第1の測定軸が、前記身体の前後軸(AP)または垂直軸(VT)を表す測定値を提供するように構成され、前記加速度計(CM)の第2の測定軸が、前記身体の正中側面軸(ML)を表す測定値を提供するように構成され、前記システムがまた、前記加速度計(CM)によって送出された測定値を解析するための解析手段(MA)を備え、前記解析手段(MA)が、
− 前記加速度計(CM)によって送出された測定信号を時間窓にわたって処理するための処理手段(MT)であって、前記信号における優位周波数を探索するための手段(MRFD)を含む処理手段(MT)と、
− 前記第1の測定軸の信号の優位周波数と前記第2の測定軸の信号の優位周波数との間、または前記加速度計(CM)によって送信された測定値ベクトルのユークリッドノルムの優位周波数と前記第2の測定軸の信号の優位周波数との間の比率が1.7〜2.3に等しい場合に、前記人の歩行を検出するための検出手段(MD)と、を含むことを特徴とするシステム。 - 前記時間窓がスライディング窓である、請求項1に記載のシステム。
- 前記加速度計(CM)が3軸であり、前記加速度計(CM)の前記第1の測定軸が、前記身体の前記前後軸(AP)と一致し、前記加速度計(CM)の前記第2の測定軸が、前記身体の前記正中側面軸(ML)と一致し、前記加速度計(CM)の第3の測定軸が、前記身体の前記垂直軸と一致し、前記検出手段(MD)が、前記第1の測定軸の信号の優位周波数と前記第2の測定軸の信号の優位周波数との間、または前記第3の測定軸の信号の優位周波数と前記第2の測定軸の信号の優位周波数との間、または前記加速度計によって送信された測定値ベクトルのユークリッドノルムの優位周波数と前記第2の測定軸の信号の優位周波数との間で、1.7〜2.3に等しい比率を検出する、請求項1に記載のシステム。
- 高域通過フィルタ(FPH)も含む、請求項1に記載のシステム。
- 通過帯域フィルタ(FPB)も含む、請求項1に記載のシステム。
- 前記解析手段(MA)が、前記ハウジング(BT)の内部または外部にあり、前記加速 度計(CM)が、その測定値を前記解析手段(MA)に送信するための有線または無線送信手段(MTR)を含む、請求項1に記載のシステム。
- 前記スライディング時間窓が、5秒間の長さであり、1秒だけオフセットされた2つの連続する窓間の4秒の部分的な重複を伴う、請求項2に記載のシステム。
- 前記加速度計(CM)によって送信された信号用の優位周波数を探索するための前記手段(MRFD)が、スペクトログラムタイプのスペクトル解析によって優位周波数の探索を実行する、請求項1に記載のシステム。
- 優位周波数を探索するための前記手段(MRFD)が、0.25Hz〜1Hz間の周波数において、前記第2の測定軸に沿った優位周波数νMLの探索を制限する、請求項1に記載のシステム。
- 優位周波数を探索するための前記手段(MRFD)が、前記第1の測定軸が前記前後軸と一致する場合には、0.2Hzおよび3Hzだけ増加された、前記第2の測定軸に沿った優位周波数νML間の周波数において、前記第1の測定軸に沿った優位周波数の探索を制限する、請求項1に記載のシステム。
- 優位周波数を探索するための前記手段(MRFD)が、前記第1の測定軸が前記垂直軸と一致する場合には、0.2Hzおよび3Hzだけ増加された、前記第2の測定軸に沿った優位周波数νML間の周波数において、前記第1の測定軸に沿った優位周波数の探索を制限する、請求項1に記載のシステム。
- 優位周波数を探索するための前記手段(MRFD)が、0.2Hzおよび3Hzだけ増加された、前記第2の測定軸に沿った優位周波数νML間の周波数において、前記加速度 計によって送信された測定値ベクトルのユークリッドノルム用の優位周波数の探索を制限する、請求項1に記載のシステム。
- 前記それぞれの信号の電力がまた閾値より高い場合に、前記検出手段(MD)が、前記第1の測定軸の信号の優位周波数と前記第2の測定軸の信号の優位周波数との間、または前記加速度計(CM)によって送信された測定値ベクトルのユークリッドノルムの優位周波数と前記第2の測定軸の信号の優位周波数との間で、比率を、1.7と2.3との間の範囲で、好ましくは、1.9と2.1との間の範囲で、検出する、請求項1に記載のシステム。
- 前記それぞれの信号の電力がまた閾値より高い場合に、前記検出手段(MD)が、前記第1の測定軸の信号の優位周波数と前記第2の測定軸の信号の優位周波数との間、または前記加速度計(CM)によって送信された測定値ベクトルのユークリッドノルムの優位周波数と前記第2の測定軸の信号の優位周波数との間で、1.7〜2.3に等しい比率を検出するものであり、前記閾値が誤検出または検出漏れに関連したリスクを考慮して決定される、請求項1に記載のシステム。
- 2軸または3軸の加速度計によって得られた移動の測定値に基づいて人の歩行を検出する方法であって、前記加速度計(CM)の第1の測定軸に沿った移動の測定値に基づいて、前記人の身体の前後軸(AP)または垂直軸(VT)を表す測定値を提供するように構成され、前記加速度計(CM)の第2の測定軸に沿った移動の測定値に基づいて、前記身体の正中側面軸(ML)を表す測定値を提供するように構成された方法において、
− 時間窓にわたって、前記加速度計(CM)によって送出された測定信号が処理され、前記処理が、前記信号における優位周波数の探索を含むことと、
− 前記第1の測定軸の信号の優位周波数と前記第2の測定軸の信号の優位周波数との間、または前記加速度計によって送信された測定値ベクトルのユークリッドノルムの優位周波数と前記第2の測定軸の信号の優位周波数との間の比率が、1.7〜2.3に等しい場合に、前記人の歩行が検出されることを、特徴とする方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0951212A FR2942388B1 (fr) | 2009-02-26 | 2009-02-26 | Systeme et procede de detection de marche d'une personne |
| FR0951212 | 2009-02-26 | ||
| PCT/EP2010/052368 WO2010097422A1 (fr) | 2009-02-26 | 2010-02-25 | Systeme et procede de detection de marche d'une personne |
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| Publication Number | Publication Date |
|---|---|
| JP2012518506A JP2012518506A (ja) | 2012-08-16 |
| JP5874130B2 true JP5874130B2 (ja) | 2016-03-02 |
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| JP2011551487A Active JP5874130B2 (ja) | 2009-02-26 | 2010-02-25 | 人の歩行を検出するためのシステムおよび方法 |
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|---|---|
| US (1) | US9265448B2 (ja) |
| EP (1) | EP2400889A1 (ja) |
| JP (1) | JP5874130B2 (ja) |
| KR (1) | KR101718555B1 (ja) |
| CN (1) | CN102333483B (ja) |
| FR (1) | FR2942388B1 (ja) |
| WO (1) | WO2010097422A1 (ja) |
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| FR2984511B1 (fr) * | 2011-12-19 | 2014-12-05 | Commissariat Energie Atomique | Systeme et procede de detection d'au moins une phase transitoire dans une activite stationnaire d'un etre anime |
| FR3015072B1 (fr) | 2013-12-18 | 2017-03-17 | Movea | Procede de determination de l'orientation d'un repere capteur lie a un terminal mobile muni d'un ensemble capteur, porte par un utilisateur et comprenant au moins un capteur de mouvement lie en mouvement |
| WO2015183193A1 (en) * | 2014-05-30 | 2015-12-03 | Nitto Denko Corporation | Device and method for classifying the activity and/or counting steps of a user |
| US9877668B1 (en) * | 2014-11-21 | 2018-01-30 | University Of South Florida | Orientation invariant gait matching |
| US10598510B2 (en) * | 2014-11-27 | 2020-03-24 | Razer (Asia-Pacific) Pte. Ltd. | Step counter devices and step counting methods |
| EP3032455A1 (en) | 2014-12-09 | 2016-06-15 | Movea | Device and method for the classification and the reclassification of a user activity |
| WO2016168610A1 (en) | 2015-04-15 | 2016-10-20 | Nike, Inc. | Activity monitoring device with assessment of exercise intensity |
| US10524728B2 (en) * | 2015-05-29 | 2020-01-07 | Nike, Inc. | Activity monitoring device with assessment of exercise intensity |
| JP2017023689A (ja) * | 2015-07-24 | 2017-02-02 | 株式会社東芝 | モニタリングシステム、モニタ方法およびプログラム |
| KR102556924B1 (ko) * | 2016-09-05 | 2023-07-18 | 삼성전자주식회사 | 보행 보조 방법 및 이를 수행하는 장치 |
| WO2018081795A1 (en) | 2016-10-31 | 2018-05-03 | Zipline Medical, Inc. | Systems and methods for monitoring physical therapy of the knee and other joints |
| GB2574074B (en) | 2018-07-27 | 2020-05-20 | Mclaren Applied Tech Ltd | Time synchronisation |
| KR102395937B1 (ko) * | 2019-06-11 | 2022-05-11 | 한국과학기술연구원 | 보행 시간-주파수 분석에 기초한 건강 상태 예측 방법 및 시스템 |
| KR102399672B1 (ko) * | 2019-06-11 | 2022-05-20 | 한국과학기술연구원 | 보행 시간-주파수 분석에 기초한 개인 식별 방법 및 시스템 |
| JP6867448B2 (ja) * | 2019-07-30 | 2021-04-28 | 日東電工株式会社 | ユーザーの活動を分類し及び/又はユーザーの歩数をカウントするデバイス及び方法 |
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| USD1084008S1 (en) | 2021-11-05 | 2025-07-15 | Howmedica Osteonics Corp. | Display screen or portion thereof with graphical user interface |
| USD1053901S1 (en) | 2021-11-05 | 2024-12-10 | Howmedica Osteonics Corp. | Display screen or portion thereof with graphical user interface |
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| KR20090082711A (ko) * | 2008-01-28 | 2009-07-31 | 삼성전자주식회사 | 보행자 항법 시스템에서의 보폭 추정 방법 및 시스템 |
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- 2010-02-25 KR KR1020117022475A patent/KR101718555B1/ko active Active
- 2010-02-25 JP JP2011551487A patent/JP5874130B2/ja active Active
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| FR2942388B1 (fr) | 2012-10-12 |
| US20120041713A1 (en) | 2012-02-16 |
| FR2942388A1 (fr) | 2010-08-27 |
| KR20110125656A (ko) | 2011-11-21 |
| CN102333483B (zh) | 2015-07-22 |
| US9265448B2 (en) | 2016-02-23 |
| CN102333483A (zh) | 2012-01-25 |
| JP2012518506A (ja) | 2012-08-16 |
| EP2400889A1 (fr) | 2012-01-04 |
| KR101718555B1 (ko) | 2017-03-21 |
| WO2010097422A1 (fr) | 2010-09-02 |
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