JP4458436B2 - 心拍計および心拍波形のノイズ除去方法 - Google Patents
心拍計および心拍波形のノイズ除去方法 Download PDFInfo
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- JP4458436B2 JP4458436B2 JP2007535427A JP2007535427A JP4458436B2 JP 4458436 B2 JP4458436 B2 JP 4458436B2 JP 2007535427 A JP2007535427 A JP 2007535427A JP 2007535427 A JP2007535427 A JP 2007535427A JP 4458436 B2 JP4458436 B2 JP 4458436B2
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- heart rate
- rate change
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- 238000000034 method Methods 0.000 title claims description 12
- 230000008859 change Effects 0.000 claims description 422
- 238000001514 detection method Methods 0.000 claims description 151
- 238000012937 correction Methods 0.000 claims description 66
- 230000007704 transition Effects 0.000 claims description 14
- 238000011156 evaluation Methods 0.000 description 25
- 230000033001 locomotion Effects 0.000 description 24
- 238000012545 processing Methods 0.000 description 23
- 210000004204 blood vessel Anatomy 0.000 description 11
- 238000005259 measurement Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 241001325280 Tricardia watsonii Species 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000017531 blood circulation Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 238000013186 photoplethysmography Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000009532 heart rate measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02405—Determining heart rate variability
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02416—Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
- A61B5/7207—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts
Description
2 心拍センサ
2a 発光素子部
2b 受光素子部
2c 遮光部
2A 触覚センサ
3 検出回路
4 心拍数検出部
5 心拍数変化検出部
5a 心拍数一時記憶部
5b 差分演算部
5c 心拍数変化記憶部
6 心拍数誤検出訂正部
6A 心拍数誤検出部
6B 心拍数誤訂正部
6a 心拍数変化誤検出部
6b 基準心拍数変化パターン記憶部
6c 基準心拍数変化パターン選択部
6d 心拍数変化訂正部
6e 心拍数記憶部
6f 訂正心拍数演算部
6g 書き換え部
7 心拍数計数部
8 心拍報知部
9 発光回路部
10 信号処理部
21 遅延器
22 加算器
23 比較器
24 加算器
25 比較器
30 生体
31 血管
32 振動波
33 生体組織
34 皮膚
パターン1:[E2,E1,E0]=[0,0,0]
パターン2:[E2,E1,E0]=[0,0,+10]
パターン3:[E2,E1,E0]=[0,+10,+20]
パターン4:[E2,E1,E0]=[+10,+20,+10]
パターン5:[E2,E1,E0]=[0,0,-5]
:
パターンn:[E2,E1,E0]=[nn,nn,nn]
とし、E2,E1にそれぞれ±5の判定幅を持たせた場合の心拍数変化誤り検出訂正について示している。
dt=Dt-1+et
の演算を行うことによって、訂正された心拍数dtを算出する(図20(d))(S14)。
Claims (10)
- 生体の心拍数を測定する心拍計において、
心拍波形から求めた心拍数について心拍数の変化を求める心拍数変化検出部と、
前記心拍数変化の推移に基づいて前記心拍数の誤り検出及び心拍数の誤り訂正を行う心拍数誤り検出訂正部と、
を備えることを特徴とする心拍計。 - 前記心拍数誤り検出訂正部は、
前記心拍数変化の推移に基づいて前記心拍数変化の誤りを心拍数の誤りとして検出する心拍数誤り検出部と、
前記心拍数誤り検出に基づいて心拍数の誤りを訂正する心拍数誤り訂正部と、
を備えることを特徴とする、請求項1に記載の心拍計。 - 前記心拍数誤り検出部は、
対象とする心拍数の対象心拍数変化の推移と、基準となる基準心拍数変化の推移とを比較し、当該両心拍数変化の推移の類似度に基づいて対象とする心拍数変化の誤りを検出する心拍数変化誤り検出部と、
心拍数変化の誤りを訂正する心拍数変化誤り訂正部と
を備えることを特徴とする、請求項1又は2に記載の心拍計。 - 前記心拍数変化誤り検出部は、所定時間域において対象心拍数変化が有する複数個の心拍数変化値を心拍数変化の推移とし、
同所定時間域において基準心拍数変化が有する同数の心拍数変化値を基準心拍数変化の推移とし、
前記両推移において、対応する各心拍数変化値の差分を推移の類似度とし、対象とする心拍数変化の誤りを検出することを特徴とする、請求項3に記載の心拍計。 - 異なる組み合わせの心拍数変化値からなる複数の基準心拍数変化パターンを記憶する基準心拍数変化パターン記憶部を備え、
前記心拍数変化誤り検出部は、前記複数の基準心拍数変化パターンから推定した基準心拍数変化パターンと対象心拍数変化とを比較し、
前記両心拍数変化において、対応する各心拍数変化値の差分を推移の類似度とし、対象とする心拍数変化の誤りを検出することを特徴とする、請求項3に記載の心拍計。 - 前記心拍数変化誤り検出部は、運動負荷のタイミングに連動して前記基準心拍数変化パターン記憶部から基準心拍数変化パターンを読み出すことを特徴とする、請求項5に記載の心拍計。
- 前記心拍数変化誤り検出部は、前記差分が設定値を超える対象心拍数変化値の個数に基づいて前記心拍数変化の誤りを検出することを特徴とする、請求項4から6の何れか一つに記載の心拍計。
- 前記心拍数変化誤り訂正部は、
前記心拍数変化誤り検出部が検出した対象心拍数変化の心拍数変化値を、基準心拍数変化の心拍数変化値に訂正することを特徴とする、請求項3から7の何れか一つに記載の心拍計。 - 前記心拍数誤り訂正部は、前記心拍誤り検出部で検出訂正した心拍数変化値に基づいて、対応する心拍数を訂正することを特徴とする、請求項3から8の何れか一つに記載の心拍計。
- 心拍波形から求めた心拍数について心拍数の変化を求める心拍数変化検出工程と、
前記心拍数変化の推移に基づいて心拍数の誤り検出及び心拍数の誤り訂正を行う心拍数誤り検出訂正工程とを備えることを特徴とする心拍波形のノイズ除去方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005268717 | 2005-09-15 | ||
JP2005268717 | 2005-09-15 | ||
PCT/JP2006/317523 WO2007032226A1 (ja) | 2005-09-15 | 2006-09-05 | 心拍計および心拍波形のノイズ除去方法 |
Publications (2)
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JPWO2007032226A1 JPWO2007032226A1 (ja) | 2009-03-19 |
JP4458436B2 true JP4458436B2 (ja) | 2010-04-28 |
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JP2007535427A Expired - Fee Related JP4458436B2 (ja) | 2005-09-15 | 2006-09-05 | 心拍計および心拍波形のノイズ除去方法 |
Country Status (4)
Country | Link |
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US (1) | US8897864B2 (ja) |
JP (1) | JP4458436B2 (ja) |
CN (1) | CN101262815B (ja) |
WO (1) | WO2007032226A1 (ja) |
Families Citing this family (16)
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WO2010087223A1 (ja) * | 2009-01-29 | 2010-08-05 | 株式会社 島津製作所 | 光測定装置 |
US20110301426A1 (en) * | 2010-06-04 | 2011-12-08 | Yongji Fu | Method and device for conditioning display of physiological parameter estimates on conformance with expectations |
WO2012114414A1 (ja) * | 2011-02-21 | 2012-08-30 | パナソニック株式会社 | データ処理装置、データ処理システム及びデータ処理方法 |
EP2755551B1 (en) | 2011-09-16 | 2016-08-17 | Koninklijke Philips N.V. | Device and method for estimating the heart rate during motion |
CN102488512B (zh) * | 2011-12-06 | 2014-07-30 | 中国科学院苏州纳米技术与纳米仿生研究所 | 一种心电监护自动报警系统 |
US10390762B2 (en) * | 2012-01-16 | 2019-08-27 | Valencell, Inc. | Physiological metric estimation rise and fall limiting |
CN107260142B (zh) | 2012-01-16 | 2020-10-20 | 瓦伦赛尔公司 | 利用惯性频率减少生理指标误差 |
WO2014109982A2 (en) | 2013-01-09 | 2014-07-17 | Valencell Inc. | Cadence detection based on inertial harmonics |
US9980657B2 (en) | 2014-05-30 | 2018-05-29 | Microsoft Technology Licensing, Llc | Data recovery for optical heart rate sensors |
US9794653B2 (en) | 2014-09-27 | 2017-10-17 | Valencell, Inc. | Methods and apparatus for improving signal quality in wearable biometric monitoring devices |
EP3212071A4 (en) * | 2014-10-27 | 2018-08-29 | LifeQ Global Limited | Biologically inspired motion compensation and real-time physiological load estimation using a dynamic heart rate prediction model |
US9949694B2 (en) | 2015-10-05 | 2018-04-24 | Microsoft Technology Licensing, Llc | Heart rate correction |
US11160466B2 (en) | 2015-10-05 | 2021-11-02 | Microsoft Technology Licensing, Llc | Heart rate correction for relative activity strain |
WO2018163371A1 (ja) * | 2017-03-09 | 2018-09-13 | パイオニア株式会社 | 情報処理装置及び方法、コンピュータプログラム並びに記録媒体 |
CN108742538B (zh) * | 2018-06-20 | 2022-04-01 | 大国创新智能科技(东莞)有限公司 | 基于大数据与人工智能的体征测量方法和医疗机器人系统 |
CN109620196A (zh) * | 2019-01-18 | 2019-04-16 | 深圳市沃特沃德股份有限公司 | 纠偏心率的方法、装置及存储介质 |
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JPS57117830A (en) | 1981-01-14 | 1982-07-22 | Matsushita Electric Works Ltd | Pulse detecting circuit |
JPH0357428A (ja) | 1989-07-25 | 1991-03-12 | Seiko Instr Inc | 脈拍計 |
JP2758101B2 (ja) * | 1992-03-16 | 1998-05-28 | 松下電器産業株式会社 | 脈波測定装置 |
US5423325A (en) * | 1993-03-12 | 1995-06-13 | Hewlett-Packard Corporation | Methods for enhancement of HRV and late potentials measurements |
FI100452B (fi) * | 1994-12-29 | 1997-12-15 | Polar Electro Oy | Menetelmä ja laite henkilön sykemittauksen yhteydessä |
DE19681246B4 (de) * | 1995-12-25 | 2004-04-29 | Matsushita Electric Works Ltd., Kadoma-Shi | Vorrichtung zum Bewirken einer Entspannung |
JP3460419B2 (ja) | 1995-12-25 | 2003-10-27 | 松下電工株式会社 | 心拍信号検査用基準値の導出方法 |
JP3666188B2 (ja) | 1997-06-27 | 2005-06-29 | セイコーエプソン株式会社 | 心機能診断装置 |
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JP2001198094A (ja) | 2000-01-19 | 2001-07-24 | Denso Corp | 脈拍数検出装置 |
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DE60102836T2 (de) * | 2000-11-28 | 2005-04-21 | Medtronic Inc | Vorrichtung zur erkennung einer vorhoffibrillation mittels herzkammerdetektion |
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US20050251054A1 (en) * | 2004-05-10 | 2005-11-10 | Medpond, Llc | Method and apparatus for measurement of autonomic nervous system function |
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- 2006-09-05 US US12/066,943 patent/US8897864B2/en not_active Expired - Fee Related
- 2006-09-05 WO PCT/JP2006/317523 patent/WO2007032226A1/ja active Application Filing
- 2006-09-05 CN CN200680033640.6A patent/CN101262815B/zh not_active Expired - Fee Related
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Publication number | Publication date |
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US8897864B2 (en) | 2014-11-25 |
WO2007032226A1 (ja) | 2007-03-22 |
CN101262815B (zh) | 2011-04-13 |
JPWO2007032226A1 (ja) | 2009-03-19 |
US20090112111A1 (en) | 2009-04-30 |
CN101262815A (zh) | 2008-09-10 |
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