JP2000041962A - Heartbeat signal processing instrument - Google Patents

Heartbeat signal processing instrument

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Publication number
JP2000041962A
JP2000041962A JP10212413A JP21241398A JP2000041962A JP 2000041962 A JP2000041962 A JP 2000041962A JP 10212413 A JP10212413 A JP 10212413A JP 21241398 A JP21241398 A JP 21241398A JP 2000041962 A JP2000041962 A JP 2000041962A
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JP
Japan
Prior art keywords
electrodes
electrode
signal
type frame
wearer
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Withdrawn
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JP10212413A
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Japanese (ja)
Inventor
Shogo Fukushima
省吾 福島
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Matsushita Electric Works Ltd
松下電工株式会社
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Application filed by Matsushita Electric Works Ltd, 松下電工株式会社 filed Critical Matsushita Electric Works Ltd
Priority to JP10212413A priority Critical patent/JP2000041962A/en
Publication of JP2000041962A publication Critical patent/JP2000041962A/en
Application status is Withdrawn legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To simplify mounting and equip with a heartbeat sensor that does not involve any feeling of incompatibility and the inconvenience of mounting by providing a signal processing means extracting a heartbeat waveform in accordance with electrical signals detected from electrodes provided in two places of the ear contact portions or the nose contact portion of a eyeglass type frame. SOLUTION: Electrodes 1 and 2 are attached to the ear contact portions of right and left earpieces 4 and 5 provided on an eyeglass type frame 6. And a voltage signal as an electrical signal detected from the electrodes 1 and 2, is sent to a signal processing means 10 from signal wires 7 and 8. At this time, the electrode 1 attached to the right or left earpiece 4, 5 of the eyeglass type frame 6 is made a reference electrode and the electrode 2 is made a signal electrode. When this eyeglass type frame 6 is worn, the electrodes 1 and 2 contact the right and left ears of a wearer and a potential difference between the right and left ears produced in association with the pulsation of blood of the wearer appears in the electrodes 1 and 2. By detecting this potential difference, the device can know a pulse of the heat, that is, a heartbeat.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、人体の心拍波形を抽出する心拍信号処理装置に関するものである。 BACKGROUND OF THE INVENTION The present invention relates to heartbeat signal processing apparatus for extracting human heartbeat waveform.

【0002】 [0002]

【従来の技術】従来、心拍や脈拍などを検出する方法としては、特開昭55−78934号に記載されているように、光源と光電素子とで耳たぶを挟みこむように構成され、光源から耳たぶを透過し光電素子に入射する脈波に対応する信号から検出するものや、発光部からの光を反射させてその反射光を受光部で受光し心拍を検出する反射型受発光素子を用いた額接触型センサを用いるものがあった。 As a method of detecting the like Conventionally, heart or pulse rate, as described in JP-A-55-78934, is configured to sandwich the ear lobe between the light source and the photoelectric element, earlobe from the light source and detects the transmitted signal corresponding to the pulse wave incident on the photoelectric element, a reflective optical element for detecting the received light heart and the reflected light by the light receiving unit used by reflecting light from the light emitting portion there is one using a forehead contact sensor.

【0003】 [0003]

【発明が解決しようとする課題】しかし、従来の耳たぶに装着するタイプのセンサは装着中の煩わしさがあり、 [0008] However, the sensor of the type to be mounted on a conventional earlobe there is a hassle during wear,
装着者に違和感を与えていた。 It had given a sense of discomfort to the wearer. また、額に接触させるタイプのセンサは装着方法が煩雑であるために装着者に負担を強いるという問題があった。 Also, the type of sensor to be in contact with the forehead has a problem that imposes a burden on the wearer for attachment method is complicated.

【0004】本発明は上記事由に鑑みて為されたものであり、その目的は装着を簡便にし、装着中の違和感や装着の煩わしさのない心拍センサを備えた心拍信号処理装置を提供することにある。 [0004] The present invention has been made in view of the above circumstances, that the aim is to simplify the mounting, to provide a heartbeat signal processing apparatus having a heartbeat sensors without hassle of discomfort and mounted in mounting It is in.

【0005】 [0005]

【課題を解決するための手段】本発明では、上記目的を達成するために、装着者の耳に接触する眼鏡型フレームの左右の耳接触部と、装着者の鼻に接触する鼻接触部のうちいずれか2個所に設けられた電極と、該電極のそれぞれから検出される電気信号に応じて心拍波形を抽出する信号処理手段とを備えたことを特徴とする。 In the present invention, there is provided a means for solving], in order to achieve the above object, the left and right ears contact portion of the eyeglass type frame in contact with the ear of the wearer, nose contact portion in contact with the wearer's nose of the electrodes provided on one or two positions, characterized in that a signal processing means for extracting the cardiac waveforms in response to an electrical signal detected from each of the electrodes.

【0006】また、装着者の耳に接触する眼鏡型フレームの左右の耳接触部と装着者の鼻に接触する鼻接触部とに設けられた3つの電極と、該電極のいずれか1つを基準電極とし、該基準電極と残りの一方の電極とから検出される信号と、前記基準電極と残りの他方の電極とから検出される信号とを差動増幅処理して心拍波形を抽出する信号処理手段とを備えたことを特徴とする。 Further, the three electrodes provided on the nose contact portion in contact with the wearer's nose and ear contact portions of the right and left eyeglass type frame in contact with the ear of the wearer, one of the electrodes a reference electrode, signal to extract the signal detected from the said reference electrode and the remaining one of the electrodes, the differential amplification process to heartbeat waveform and signal detected from the reference electrode and the remaining other electrode characterized by comprising a processing unit.

【0007】 [0007]

【発明の実施の形態】(実施形態1)図1は眼鏡型フレームに電極が取り付けられる状態を示す斜視図である。 DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) FIG. 1 is a perspective view showing a state in which the electrode is attached to the eyeglasses-type frame.
1、2は眼鏡型フレーム6に設けられた左右のつる4、 1,2 vine 4 right and left provided on the eyeglasses-type frame 6,
5の耳に接触する耳接触部にそれぞれに取り付けられた電極である。 The ear contacting portion in contact with 5 the ear is an electrode attached to each. それぞれの電極1、2から検出される電気信号である電圧信号は、信号線7、8より信号処理手段10に送出される。 Voltage signal is an electrical signal detected from each of the electrodes 1 and 2 is sent to the signal processing unit 10 from the signal line 7, 8.

【0008】このとき、眼鏡型フレーム6の左右それぞれのつるに取り付けられた電極1を基準電極、電極2を信号電極とする。 [0008] At this time, the reference electrode an electrode 1 attached to each of the temples left and right spectacle-type frame 6, the electrode 2 and the signal electrode. この眼鏡型フレーム6を装着すると、 When attaching the eyeglass type frame 6,
それぞれの電極1、2が装着者の左右の耳に接触し、装着者の血液の脈動に伴って発生する左右の耳間の電位差が電極1、2に現れる。 Each of the electrodes 1 and 2 are in contact with the left and right ears of the wearer, the potential difference between the left and right ears generated due to the pulsation of the wearer's blood appears in the electrodes 1, 2. この電位差を検出することで心臓の脈拍、すなわち心拍がわかる。 Pulse of the heart by detecting the potential difference, i.e. the heart rate is known.

【0009】図2は信号処理手段10の内部構成を示すブロック図である。 [0009] FIG. 2 is a block diagram showing the internal configuration of the signal processing means 10. 基準電極である電極1、信号電極である電極2から検出される電位差信号Aは増幅回路20 Electrode 1 which is the reference electrode, the potential difference signal A detected from the electrode 2 is a signal electrode amplifier circuit 20
で増幅され、フィルタ回路21によりノイズとされる周波数帯が除去されて、心拍信号Bが出力される。 In amplified, frequency band is a noise by the filter circuit 21 is removed, the heartbeat signal B is outputted. 心拍信号Bは図3で示す心拍波形として現れ、この波形のパルス間隔に基づいて心拍数が演算される。 Heartbeat signal B appears as cardiac waveform shown in FIG. 3, the heart rate is calculated on the basis of the pulse interval of the waveform.

【0010】尚、本実施形態では眼鏡型フレーム6の左右の耳接触部のそれぞれに合計2箇所電極を設けたが、 [0010] Although provided respectively on total two places electrodes of the ear contacting portion of the left and right spectacle-type frame 6 in the present embodiment,
装着者の鼻に接触する鼻接触部11と左の耳接触部の2 Nose contact portion 11 and the second left ear contacting portion in contact with the wearer's nose
箇所に電極を設けるなど、鼻接触部と両耳の耳接触部のうちいずれか2箇所に電極を設けて、それぞれから検出される電極の電位差信号から心拍波形を抽出するようにしてもよい。 Such as providing the electrode portion, provided with electrodes in any two places of the ear contacting portion of the nose contacting portion and the ears, it may be extracted cardiac waveform from the potential difference signal electrodes which is detected from each. (実施形態2)図4は本発明の第2の実施形態に対応する眼鏡型フレームに電極を装着する状態を示す斜視図であり、図1と同じものには同じ番号を付し、その説明を省略する。 (Embodiment 2) FIG. 4 is a perspective view showing a state of mounting the electrodes on the eyeglasses-type frame corresponding to the second embodiment of the present invention, given the same numerals to the same thing as FIG. 1, a description thereof will omitted. 図1と異なるところは眼鏡型フレーム6の装着者の鼻に接触する鼻接触部11に新たに電極3が設けられて、信号線9を通じて信号処理手段10へ信号が送られる点である。 Figure 1 differs from the are newly electrodes 3 provided on the nose contact portion 11 that contacts the nose of the wearer of the eyeglasses-type frame 6 is that the signal to the signal processing unit 10 via the signal line 9 is sent.

【0011】この眼鏡型フレーム6を装着すると、電極3が操作者の鼻に接触し、電極1、2が装着者の左右の耳にそれぞれ接触する。 [0011] attaching the eyeglass type frame 6, the electrode 3 is in contact with the nose of the operator, the electrodes 1 and 2 respectively contact the left and right ears of the wearer. このとき、眼鏡型フレーム6の左の耳接触部に取り付けられた電極1を基準電極、右の耳接触部および鼻接触部に取り付けられた電極2、電極3を信号電極とすると、装着者の血液の脈動に伴って基準電極である電極1と信号電極である電極2の間、および基準電極である電極1と信号電極である電極3の間にそれぞれ電位差が生じる。 At this time, the left ear contacting portion relative to the electrode 1 attached to the electrodes of the eyeglasses-type frame 6, the electrode 2 is attached to the ear contacting portion and the nose contact portion of the right, when the electrode 3 and the signal electrodes, the wearer of between the electrode 2 is an electrode 1 and the signal electrode is a reference electrode in accordance with the pulsation of the blood, and each of the potential difference between the electrodes 1 and 3 is a signal electrode is the reference electrode is generated.

【0012】図5は信号処理手段10の内部構成を示すブロック図であり、基準電極である電極1と信号電極である電極2から検出される電位差信号Cは図6(a)に示す波形図となり、基準電極である電極1と信号電極である電極3から検出される電位差信号Dは図6(b)に示す波形図となる。 [0012] Figure 5 is a block diagram showing the internal configuration of the signal processing means 10, the potential difference signal C which is detected from the electrodes 1 and 2 is a signal electrode is the reference electrode is a waveform diagram shown in FIG. 6 (a) next, the potential difference signal D to be detected from the electrode 1 and the electrode 3 which is a signal electrode is a reference electrode has a waveform diagram illustrating in Figure 6 (b). 図6(a)(b)に示すこれらの波形図は正負逆の逆相となり同一周期を有するものである。 These waveform diagram shown in FIG. 6 (a) (b) are those having the same period becomes polarity reversed reversed phase.

【0013】これらの電位差信号C、Dが差動増幅回路30で差動増幅され、フィルタ回路31によりノイズとされる周波数帯が除去されて、心拍信号Eが出力される。 [0013] These potential signals C, D are differentially amplified by the differential amplifier circuit 30, a frequency band that is a noise by the filter circuit 31 is removed, the heartbeat signal E is output. 心拍信号は図7で示す心拍波形として現れ、この波形のパルス間隔に基づいて心拍数が演算される。 Heartbeat signal appears as cardiac waveform shown in Figure 7, the heart rate is calculated on the basis of the pulse interval of the waveform.

【0014】このとき、それぞれの電位差信号C、Dは逆相の電圧信号となるため、差動増幅回路31により差動増幅された差動信号に対応する図7に示す波形は、図3で示す波形に比べて鋭くなり信号の抽出精度が向上すると共に、差動増幅の段階で同相性のノイズが除去されSN比が向上する。 [0014] At this time, each potential difference signal C, since D is a voltage signal of opposite phase, the waveform shown in FIG. 7 corresponding to the differential signal obtained through the differential amplification by the differential amplifier circuit 31, in FIG. 3 thereby improving the accuracy of extracting sharp becomes signal as compared to the waveform shown, the same compatibility noise removal at the stage of the differential amplifier is improved SN ratio.

【0015】また、本実施形態では、眼鏡型フレーム6 Further, in this embodiment, the spectacle-type frame 6
の左の耳接触部に取り付けられた電極1を基準電極、右の耳接触部および鼻接触部に取り付けられた電極2、電極3を信号電極としたが、基準電極を右の耳接触部に取り付けられた電極2とし、残りの電極1、3をそれぞれ信号電極とするように、電極の取り方を変えてもよい。 Left reference electrode an electrode 1 attached to the ear contacting portion of the electrode 2 is attached to the ear contacting portion and the nose contact portion of the right, the electrode 3 is set to the signal electrode, the reference electrode to the ear contacting portion of the right and attached electrodes 2, so that the respective signal electrodes remaining electrodes 1,3 may change the way of taking the electrode.

【0016】 [0016]

【発明の効果】本発明の請求項1の発明においては、装着者の耳に接触する眼鏡型フレームの左右の耳接触部と、装着者の鼻に接触する鼻接触部のうちいずれか2個所に設けられた電極と、該電極のそれぞれから検出される電気信号に応じて心拍波形を抽出するようにしたので、眼鏡型のフレームを装着するだけで心拍信号の抽出が可能となり、装着したときの違和感や装着の煩わしさを排除できる。 In the invention of claim 1 of the present invention, any two points of the nose contacting portion for contacting with the left and right ears contact portion of the eyeglass type frame in contact with the ear of the wearer, the wearer's nose an electrode provided on, since to extract the heartbeat waveform in response to an electrical signal detected from each of the electrodes, it is possible to extract the heartbeat signal by simply wearing the glasses-type frame, when mounted the discomfort and hassle of mounting can be eliminated.

【0017】また本発明の請求項2の発明においては、 [0017] In the invention of claim 2 of the present invention,
装着者の耳に接触する眼鏡型フレームの左右の耳接触部と装着者の鼻に接触する鼻接触部とに設けられた3つの電極と、該電極のいずれか1つを基準電極とし、該基準電極と残りの一方の電極とから検出される信号と、前記基準電極と残りの他方の電極とから検出される信号とを差動増幅して心拍波形を抽出する信号処理手段とを備えたので、増幅の段階で同相性の雑音を除去することができSN比が向上する。 And three electrodes provided on the nose contact portion in contact with the wearer's nose and ear contact portions of the right and left eyeglass type frame in contact with the ear of the wearer, one of the electrodes as a reference electrode, said a signal detected from the reference electrode and the remaining one electrode, and a signal processing means for extracting the cardiac waveform and a signal detected from the reference electrode and the remaining other electrode to the differential amplifier since, SN ratio can remove noise of the compatibility at the stage of amplification is improved.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の第1の実施形態に対応する眼鏡型フレームに電極が取り付けられる状態を示す斜視図である。 1 is a perspective view showing a state in which the electrode is attached to the eyeglasses-type frame corresponding to the first embodiment of the present invention.

【図2】本発明の第1の実施形態に対応する信号処理手段の内部構成を示すブロック図である。 2 is a block diagram showing the internal configuration of the corresponding signal processing means to a first embodiment of the present invention.

【図3】本発明の第1の実施形態において抽出される心拍波形を示す波形図である。 3 is a waveform diagram illustrating the heartbeat waveform extracted in the first embodiment of the present invention.

【図4】本発明の第2の実施形態に対応する眼鏡型フレームに電極が取り付けられる状態を示す斜視図である。 4 is a perspective view showing a state in which the electrode is attached to the eyeglasses-type frame corresponding to the second embodiment of the present invention.

【図5】本発明の第2の実施形態に対応する信号処理手段の内部構成を示すブロック図である。 5 is a block diagram showing the internal configuration of the corresponding signal processing means to the second embodiment of the present invention.

【図6】本発明の第2の実施形態における(a)は電極1と電極2の電位差を表す波形図、(b)は電極1と電極3の電位差を表す波形図である。 [6] in the second embodiment of the present invention (a) is a waveform diagram showing the potential difference between the electrodes 1 and 2 is a waveform diagram showing the potential difference (b) is the electrode 1 and the electrode 3.

【図7】本発明の第2の実施形態において抽出される心拍波形を示す波形図である。 7 is a waveform diagram illustrating the heartbeat waveform extracted in the second embodiment of the present invention.

【符号の説明】 DESCRIPTION OF SYMBOLS

1、2 電極 6 眼鏡型フレーム 10 信号処理手段 1,2 electrode 6 eyeglass frame 10 signal processing means

Claims (2)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 装着者の耳に接触する眼鏡型フレームの左右の耳接触部と、装着者の鼻に接触する鼻接触部のうちいずれか2個所に設けられた電極と、該電極のそれぞれから検出される電気信号に応じて心拍波形を抽出する信号処理手段とを備えたことを特徴とする心拍信号処理装置。 1. A left and right ears contact portion of the eyeglass type frame in contact with the ear of the wearer, and an electrode provided on any two points of the nose contact portion in contact with the nose of the wearer, each of said electrodes heartbeat signal processing apparatus characterized by comprising a signal processing means for extracting the cardiac waveforms in response to an electrical signal detected from.
  2. 【請求項2】 装着者の耳に接触する眼鏡型フレームの左右の耳接触部と装着者の鼻に接触する鼻接触部とに設けられた3つの電極と、該電極のいずれか1つを基準電極とし、該基準電極と残りの一方の電極とから検出される信号と、前記基準電極と残りの他方の電極とから検出される信号とを差動増幅処理して心拍波形を抽出する信号処理手段とを備えたことを特徴とする心拍信号処理装置。 2. A right and left ears contact portion with the three provided in the nose contact portion in contact with the wearer's nose electrodes of the eyeglass type frame in contact with the ear of the wearer, one of the electrodes a reference electrode, signal to extract the signal detected from the said reference electrode and the remaining one of the electrodes, the differential amplification process to heartbeat waveform and signal detected from the reference electrode and the remaining other electrode heartbeat signal processing apparatus characterized by comprising a processing unit.
JP10212413A 1998-07-28 1998-07-28 Heartbeat signal processing instrument Withdrawn JP2000041962A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7433718B2 (en) 2002-06-19 2008-10-07 Ntt Docomo, Inc. Mobile terminal capable of measuring a biological signal
US8818498B2 (en) 2009-01-19 2014-08-26 Panasonic Corporation Electroencephalogram interface system
JP2016174642A (en) * 2015-03-18 2016-10-06 Kddi株式会社 Wearable electrocardiographic signal generation apparatus, electrocardiographic signal generation method, and program

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7433718B2 (en) 2002-06-19 2008-10-07 Ntt Docomo, Inc. Mobile terminal capable of measuring a biological signal
US8818498B2 (en) 2009-01-19 2014-08-26 Panasonic Corporation Electroencephalogram interface system
JP2016174642A (en) * 2015-03-18 2016-10-06 Kddi株式会社 Wearable electrocardiographic signal generation apparatus, electrocardiographic signal generation method, and program

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