JP5543592B2 - 転倒検出器及び転倒検出方法 - Google Patents
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Description
(i)低電力消費
(ii)360度の方向のエアフローを測定する能力
(iii)低い流量への感度
(iv)防水であることを保証する、装置の筐体のシンプルな設計
本発明の実施形態は、以下に説明される温度の測定結果に基づき、チャネルの中のフローを感知するためのサーマルフローセンサ集積回路に関する。該サーマルフローセンサ集積回路は、流体チャネルに面する当該集積回路の表面に測温体を有する集積回路と、前記集積回路から離れて電気接点を作るための、前記測温体と電気的に結合されるボンドパッドであって、前記集積回路の裏面から接触しやすいように、前記表面から離れる方向を向いて配置される、ボンドパッドと、を有する。
Claims (15)
- ユーザ又は物体に取り付けられ、該ユーザ又は該物体の転倒を検出する転倒検出器であって、
当該転倒検出器の垂直速度及び/又は高さの変化を示す測定結果を提供するためのエアフローセンサを有する、
転倒検出器。 - 当該転倒検出器の加速度を測定するための加速度計
をさらに有する、請求項1に記載の転倒検出器。 - 転倒が生じたかどうかを決定するために前記エアフローセンサと前記加速度計からの測定結果を処理するためのプロセッサ
をさらに有する、請求項2に記載の転倒検出器。 - 前記プロセッサは、前記加速度計からの前記測定結果から当該転倒検出器の向きを推定し、前記エアフローセンサからの前記測定結果から当該転倒検出器の垂直速度のプロファイルを生成するために推定された前記向きを用いるよう構成される、
請求項3に記載の転倒検出器。 - 前記エアフローセンサはサーマルエアフローセンサである、
請求項1乃至4何れか一項に記載の転倒検出器。 - 前記サーマルエアフローセンサはエアガイドチャネルを有し、前記サーマルエアフローセンサは温度の測定結果に基づいて前記エアガイドチャネルの中のエアフローを感知するよう構成される、
請求項5に記載の転倒検出器。 - 前記サーマルエアフローセンサは、
前記前記エアガイドチャネルに面して配置される当該サーマルエアフローセンサの表面の熱電素子と、
当該サーマルエアフローセンサから離れて電気接点を作るための、前記熱電素子と電気的に結合されるボンドパッドであって、当該サーマルエアフローセンサの裏面から接触しやすいように前記表面から離れる方向を向いて配置される、ボンドパッドと、
を有する、請求項6に記載の転倒検出器。 - 前記サーマルエアフローセンサは、前記熱電素子と前記ボンドパッドとの間の電気的接続のための、当該サーマルエアフローセンサの前記表面の導電層をさらに有し、
前記ボンドパッドは前記導電層の裏面を構成する、
請求項7に記載の転倒検出器。 - 前記サーマルエアフローセンサは、前記前記エアガイドチャネルの中の流体から当該サーマルエアフローセンサを電気的に絶縁するための絶縁層をさらに有する、
請求項7又は8に記載の転倒検出器。 - 前記サーマルエアフローセンサは基板をさらに有し、
前記基板は、前記ボンドパッドを露出するための開口部を提供するように形成され、該開口部を通じた前記ボンドパッドとの接触を可能にする、
請求項7乃至9何れか一項に記載の転倒検出器。 - 前記熱電素子は、前記前記エアガイドチャネルに面する前記サーマルエアフローセンサの表面に加熱素子又は温度感知素子を有する、
請求項7乃至10何れか一項に記載の転倒検出器。 - ユーザ又は物体に取り付けられ、該ユーザ又は該物体の転倒を検出する転倒検出器における転倒検出方法であって、
前記転倒検出器の垂直速度及び/又は高さの変化を示す測定結果を提供するためのエアフローセンサを用いるステップ
を有する、転倒検出方法。 - 前記転倒検出器の加速度を測定するステップ
をさらに有する、請求項12に記載の転倒検出方法。 - 転倒が生じたかどうかを決定するために、前記エアフローセンサからの前記測定結果と前記加速度の測定結果とを処理するステップ
をさらに有する、請求項13に記載の転倒検出方法。 - 前記処理するステップは、
前記加速度の測定結果から前記転倒検出器の向きを推定するステップと、
前記エアフローセンサからの前記測定結果から前記転倒検出器の垂直速度のプロファイルを生成するために推定された前記向きを用いるステップと、
を有する、請求項14に記載の転倒検出方法。
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