JP2009050679A - 心電センサー - Google Patents
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- JP2009050679A JP2009050679A JP2008017057A JP2008017057A JP2009050679A JP 2009050679 A JP2009050679 A JP 2009050679A JP 2008017057 A JP2008017057 A JP 2008017057A JP 2008017057 A JP2008017057 A JP 2008017057A JP 2009050679 A JP2009050679 A JP 2009050679A
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Abstract
【解決手段】座席の背もたれ部分に設けられる第1電極及20、第2電極30と、第1電極20及び第2電極30の裏面にそれぞれ設けられ、座席の背もたれ部分に埋設された1段目アンプ部21、31と、座席の座部に設けられるグランド電極40と、座席以外に配され、1段目アンプ部21、31からの出力信号を増幅する2段目アンプ部50と、1段目アンプ部21、31と2段目アンプ部50との間を接続する同軸ケーブル25、35と、グランド電極40と2段目アンプ部50との間を接続するグランド電極用ケーブル45と、からなることを特徴とする。
【選択図】図1
Description
Claims (10)
- 座席部分に搭載され、非侵襲に心電に係る信号を検出する心電センサーであって、
座席に取り付けられる電極と、
該電極の裏面に設けられ、該電極とAC結合されると共に、フィードバック回路を有する座席内に収納された1段目アンプ部と、
座席外に設けられて1段目アンプ部からの出力をさらに増幅する2段目アンプ部と、
該1段目アンプ部と該2段目アンプ部との間を接続する同軸線、とからなることを特徴とする心電センサー。 - 座席周辺部分に搭載され、非侵襲に心電に係る信号を検出する心電センサーであって、
第1電極及び第2電極と、
該第1電極の裏面に設けられ、該第1電極からの出力信号を増幅する第1電極用1段目アンプ部と、
該第2電極の裏面に設けられ、該第2電極からの出力信号を増幅する第2電極用1段目アンプ部と、
グランド電極と、
該第1電極用1段目アンプ部からの出力信号と、該第2電極用1段目アンプ部からの出力信号とを増幅する2段目アンプ部と、
該第1電極用1段目アンプ部と該2段目アンプ部との間を接続する第1電極用同軸ケーブルと、
該第2電極用1段目アンプ部と該2段目アンプ部との間を接続する第2電極用同軸ケーブルと、
該グランド電極と該2段目アンプ部との間を接続するグランド電極用ケーブルと、からなることを特徴とする心電センサー。 - 該第1電極が設けられる座席部分、及び該第2電極が設けられる座席部分には導電性糸が縫い込まれることを特徴とする請求項2に記載の心電センサー。
- 該グランド電極が座席に縫い込まれた導電性糸で構成されることを特徴とする請求項2又は請求項3に記載の心電センサー。
- 該第1電極用1段目アンプ部及び該第2電極用1段目アンプ部には、該第1電極及び該第2電極からの出力信号を増幅する演算増幅器がそれぞれ設けられ、それぞれの該演算増幅器の非反転入力端子と該第1電極及び該第2電極との間はAC結合であることを特徴とする請求項2乃至請求項4のいずれかに記載の心電センサー。
- それぞれの該演算増幅器の入力段には、1GΩ以上の抵抗が設けられることを特徴とする請求項5に記載の心電センサー。
- それぞれの該演算増幅器の非反転入力端子にはコンデンサを介した帰還信号が入力されることを特徴とする請求項5又は請求項6に記載の心電センサー。
- 該2段目アンプ部には、心電波形の周波数以外の周波数の信号を除去するハイパスフィルター及びローパスフィルターが設けられることを特徴とする請求項1乃至請求項7のいずれかに記載の心電センサー。
- 前記座席は自動車、航空機、電気鉄道、電気自動車、船舶の座席であることを特徴とする請求項1乃至請求項8のいずれかに記載の心電センサー。
- 前記座席は自動車の座席であり、
該第1電極はシート背もたれ左側、ハンドル左側、シフトレバー、肘掛け、肘置き、シート座面左側のうちのいずれか1箇所又は複数箇所に搭載され、
該第2電極はシート背もたれ右側、ハンドル右側、シート座面右側、運転席側ドア内側のうちのいずれか1箇所又は複数箇所に搭載されることを特徴とする請求項2乃至請求項8のいずれかに記載の心電センサー。
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JP2012232001A (ja) * | 2011-05-02 | 2012-11-29 | Fujitsu Ltd | 信号処理装置、信号処理方法及び信号処理プログラム |
JP2013212311A (ja) * | 2012-04-03 | 2013-10-17 | Denso Corp | 車両用心電計測装置 |
WO2013157608A1 (ja) | 2012-04-19 | 2013-10-24 | テイ・エス テック株式会社 | 車両用シート |
JP2014030483A (ja) * | 2012-08-01 | 2014-02-20 | Nissan Motor Co Ltd | 生体電気信号計測装置及び車両用シート |
JP2014212970A (ja) * | 2013-04-25 | 2014-11-17 | 株式会社デンソー | 心電波形計測装置 |
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