JP6923319B2 - 転倒検出システム、方法及びコンピュータプログラム - Google Patents
転倒検出システム、方法及びコンピュータプログラム Download PDFInfo
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/1116—Determining posture transitions
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- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
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- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
- G08B21/0407—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis
- G08B21/043—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis detecting an emergency event, e.g. a fall
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
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- G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
- G08B21/0438—Sensor means for detecting
- G08B21/0446—Sensor means for detecting worn on the body to detect changes of posture, e.g. a fall, inclination, acceleration, gait
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
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- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/02—Operational features
- A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/02—Operational features
- A61B2560/0242—Operational features adapted to measure environmental factors, e.g. temperature, pollution
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0219—Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/20—Calibration, including self-calibrating arrangements
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Description
特許文献2(米国特許出願公開第2012/0190949号)は、特定のヒューリスティックルール及び閾値を使用して動きとバイタルサインの双方を処理する警告システムを説明している。特許文献3(国際公開第2010/023604号)及び特許文献4(国際公開第2010/026513号)は、転倒防止システムを説明している。
Claims (14)
- ユーザによる転倒を検出する際に使用するための転倒検出システムであって、当該転倒検出システムは:
前記ユーザ及び/又は前記ユーザが置かれている環境に関するコンテキスト情報を決定し、
前記決定されたコンテキスト情報が、前記ユーザは現在、転倒リスクが増加した状態にあることを示す場合に、ユーザによる転倒を検出するのに使用される転倒検出アルゴリズムの感度を一時的に上昇させることであって、前記感度の一時的な上昇は、前記決定されたコンテキスト情報により前記転倒リスクが増加した状態が示される間に起こり、
前記ユーザ及び/又は前記ユーザが置かれている環境に関する更なるコンテキスト情報を決定し、
前記更なるコンテキスト情報が、前記ユーザはもはや転倒リスクが増加した状態にないことを示す場合、前記転倒検出アルゴリズムの感度をリセットするか又は低下させる、
ように構成される、処理ユニット
を備え、
前記転倒検出アルゴリズムの感度の上昇、及びリセット又は低下は、前記転倒検出アルゴリズムの閾値を変更することにより行われる、
転倒検出システム。 - 前記コンテキスト情報は、前記ユーザが転倒リスク評価テスト又は平衡感覚トレーニングを実行しているかどうかの指示を備え;前記処理ユニットは、前記コンテキスト情報が、前記ユーザが転倒リスク評価テスト又は平衡感覚トレーニングを実行していることを示す場合に、前記ユーザは現在、転倒リスクが増加した状態にあると決定するように構成される、
請求項1に記載の転倒検出システム。 - 前記コンテキスト情報は、前記ユーザが歩いているかどうかの指示を備え、前記処理ユニットは、前記コンテキスト情報が、前記ユーザが歩いていることを示す場合に、前記ユーザは現在、転倒リスクが増加した状態にあると決定するように構成される、
請求項1又は2に記載の転倒検出システム。 - 前記コンテキスト情報は、前記ユーザについての異常な動きパターンが検出されたかどうかの指示を備え、前記処理ユニットは、前記コンテキスト情報が前記異常な動きパターンを示す場合に、前記ユーザは現在、転倒リスクが増加した状態にあると決定するように構成される、
請求項1乃至3のいずれか一項に記載の転倒検出システム。 - 前記コンテキスト情報は、前記ユーザの現在の位置の指示を備え、前記処理ユニットは、前記ユーザの現在の位置が、前記ユーザが転倒するリスクの高い既知の位置である場合に、前記ユーザは現在、転倒リスクが増加した状態にあると決定するように構成される、
請求項1乃至4のいずれか一項に記載の転倒検出システム。 - 前記ユーザが置かれている環境に関する前記コンテキスト情報は、前記ユーザの位置における環境光の指示、地面がどの程度平らであるか若しくは平らでないかの指示、現在の天気若しくは気温の指示及び/又は環境雑音レベルの指示を備え、前記処理ユニットは、前記環境光が閾値未満である場合、前記地面が平らでない場合、前記天気が湿っているか気温が閾値未満である場合、かつ/又は前記環境雑音レベルが閾値超である場合に、前記ユーザは現在、転倒リスクが増加した状態にあると決定するように構成される、
請求項1乃至5のいずれか一項に記載の転倒検出システム。 - 前記コンテキスト情報は、現在の時間の指示を備え、前記処理ユニットは、前記現在の時間が1つ以上の指定された期間内である場合に、前記ユーザは現在、転倒リスクが増加した状態にあると決定するように構成される、
請求項1乃至6のいずれか一項に記載の転倒検出システム。 - 前記1つ以上の指定された期間は、夜間、並びに/あるいは薬の定期的投与の直前及び/又は後の期間を備える、
請求項7に記載の転倒検出システム。 - 前記コンテキスト情報は、前記ユーザが歩行補助を使用しているかどうかの指示、前記ユーザが眼鏡を装着しているかどうかの指示及び/又は前記ユーザが履いている靴のタイプの指示を備え、前記処理ユニットは、前記ユーザが必要な歩行補助を使用していない場合、前記ユーザが眼鏡を装着していない場合及び/又は前記ユーザが通常の又は正しい靴を履いていない場合に、前記ユーザは現在、転倒リスクが増加した状態にあると決定するように構成される、
請求項1乃至8のいずれか一項に記載の転倒検出システム。 - 前記コンテキスト情報は、前記ユーザの現在の活動レベルの指示を備え、前記処理ユニットは、前記現在の活動レベルが閾値活動レベルよりも高い場合に、前記ユーザは現在、転倒リスクが増加した状態にあると決定するように構成される、
請求項1乃至9のいずれか一項に記載の転倒検出システム。 - 前記処理ユニットは、前記コンテキスト情報が、前記ユーザは転倒リスクが低下した状態である又は転倒リスクが低下した状態であり得ることを示すかどうかを判断し、前記決定されたコンテキスト情報により前記転倒リスクの低下した状態が示される間、前記転倒検出アルゴリズムの感度を低下させるように構成される、
請求項1乃至10のいずれか一項に記載の転倒検出システム。 - ユーザによる転倒を検出するよう転倒検出システムを作動させる方法であって、当該方法は:
前記ユーザ及び/又は前記ユーザが置かれている環境に関するコンテキスト情報を決定するステップと;
前記決定されたコンテキスト情報が、前記ユーザは現在、転倒リスクが増加した状態にあることを示す場合に、前記決定されたコンテキスト情報により前記転倒リスクの増加した状態が示される間、ユーザによる転倒を検出するのに使用される転倒検出アルゴリズムの感度を一時的に上昇させるステップと;
前記ユーザ及び/又は前記ユーザが置かれている環境に関する更なるコンテキスト情報を決定するステップと;
前記更なるコンテキスト情報が、前記ユーザはもはや転倒リスクが増加した状態にないことを示す場合、前記転倒検出アルゴリズムの感度をリセットするか低下させるステップと;
を備え、
前記転倒検出アルゴリズムの感度の上昇、及びリセット又は低下は、前記転倒検出アルゴリズムの閾値を変更することにより行われる、
方法。 - 前記転倒検出システムを、最初に、前記ユーザについての通常の転倒リスクに対応する通常の感度に設定された前記転倒検出アルゴリズムを用いて動作させるステップ;
を更に備え、
前記コンテキスト情報が、前記ユーザは、前記ユーザについての前記通常の転倒リスクに対して転倒リスクが増加した状態にある又は転倒リスクが増加した状態にあり得ることを示すとき、前記転倒検出アルゴリズムの感度を前記通常の感度より上に上げる、
請求項12に記載の方法。 - コンピュータ又は処理ユニットによって実行されると、該コンピュータ又は処理ユニットに請求項12又は13に記載の方法を実行させる、コンピュータプログラム。
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EP13183914.4 | 2013-09-11 | ||
EP13183914 | 2013-09-11 | ||
PCT/EP2014/068209 WO2015036245A1 (en) | 2013-09-11 | 2014-08-28 | Fall detection system and method |
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JP2016529081A JP2016529081A (ja) | 2016-09-23 |
JP2016529081A5 JP2016529081A5 (ja) | 2016-11-04 |
JP6923319B2 true JP6923319B2 (ja) | 2021-08-18 |
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US (1) | US10335059B2 (ja) |
EP (1) | EP3043709B1 (ja) |
JP (1) | JP6923319B2 (ja) |
CN (1) | CN105530865B (ja) |
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