JP3353460B2 - Monitoring device - Google Patents
Monitoring deviceInfo
- Publication number
- JP3353460B2 JP3353460B2 JP12776194A JP12776194A JP3353460B2 JP 3353460 B2 JP3353460 B2 JP 3353460B2 JP 12776194 A JP12776194 A JP 12776194A JP 12776194 A JP12776194 A JP 12776194A JP 3353460 B2 JP3353460 B2 JP 3353460B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- detecting means
- vibration detecting
- monitoring device
- bedding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は病院や施設の患者、就寝
中の人を監視する監視装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring device for monitoring a patient in a hospital or facility or a sleeping person.
【０００２】[0002]
【従来の技術】発明者らは、先にこの種の監視装置とし
て、図１０に示すように寝具に複数の振動検知手段１７
ａ〜１７ｉを設けて、生体の生命現象によって生じる振
動の出力データを収集して信号変換を行い、収集データ
の周波数成分のうち、生体信号抽出手段では特定周波数
帯でのパワースペクトルに応じて人の心拍数または呼吸
数などの生体信号を抽出する装置を考案していた。2. Description of the Related Art As a monitoring device of this type, the present inventors have previously described a plurality of vibration detecting means 17 on bedding as shown in FIG.
a to 17i are provided to collect the output data of the vibrations caused by the biological phenomena of the living body and perform signal conversion. A device for extracting a biological signal such as a heart rate or a respiratory rate has been devised.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来の技術の監視装置では次のような課題があった。However, the monitoring device of the above-mentioned conventional technology has the following problems.
【０００４】心拍や呼吸による体動信号は、人体と体動
検知手段の接触状況が変化すると、出力信号の形態が非
常によく変化する。例えば、体動検知手段を多点に配設
した場合、肩胛骨から腰にかけての部位など、呼吸によ
る横隔膜の上下運動の振動が伝播しやすい部位からは呼
吸信号が検出されやすいが、肩口、後頭部、踵などから
は、明確な心拍信号は検出されるが、呼吸信号は検出さ
れにくい。また、健常人であれば就寝中一定の姿勢を保
持することはなく、寝返りが生じて寝位置や姿勢は変化
するので、体動検知手段と人体との関係を一定に保つこ
とはできない。また、就寝者の身体特徴（例えば、身
長、体重など）は就寝者によって異なるので、体動検知
手段の位置が一定では異なる身体特徴をもった使用者に
対応できない。このような条件下で振動検知手段の数を
少なくして、この種の監視装置の信号検出の確実性を上
げることは難しく、多数の体動検出手段を用いることで
上記の状況に対応していた。The form of an output signal of a body motion signal due to heartbeat or breathing changes very well when the contact state between the human body and the body motion detecting means changes. For example, when the body movement detecting means is arranged at multiple points, a respiratory signal is easily detected from a portion where vibration of up-and-down motion of the diaphragm due to breathing is easily transmitted, such as a portion from the scapula to the waist, but a shoulder mouth, an occipital region, From a heel or the like, a clear heartbeat signal is detected, but a respiration signal is hardly detected. In addition, a healthy person does not maintain a constant posture during bedtime, but turns over and the sleeping position and posture change, so that the relationship between the body movement detecting means and the human body cannot be kept constant. Further, since the physical characteristics of the sleeping person (for example, height, weight, etc.) differ depending on the sleeping person, it is not possible to cope with users having different physical characteristics if the position of the body movement detecting means is constant. Under such conditions, it is difficult to reduce the number of vibration detecting means to increase the reliability of signal detection of this type of monitoring device, and to cope with the above situation by using a large number of body motion detecting means. Was.
【０００５】また、就寝時以外の生活時間中に寝具の天
地を逆向きにして横になったり、使用者が老人病院など
の痴呆性老人であったりすると寝具の天地を逆に使用し
てしまうことがあったりする。寝具を洗濯や場所移動し
て再設置する際に、天地を逆にしてしまうことも生じ
る。このような状況で、寝具の天地の方向性をもたせた
振動検知手段の配設をすると、信号の検出が不十分なこ
とも生じる。[0005] Further, when the bedside is turned upside down during a life time other than bedtime, or when the user is a dementia elderly person such as a geriatric hospital, the bedside is used upside down. There are things. When washing or moving the bedding and re-installing it, the top and bottom may be reversed. In such a situation, if the vibration detecting means is provided with the directionality of the bedding upside down, the detection of the signal may be insufficient.
【０００６】本発明の目的は、少ない振動検知手段を用
いて、簡易な構成にし、就寝位置や、就寝姿勢、就寝者
を限定することなく心拍や呼吸などを含めた体動信号を
確実に検知することが出来る監視装置を提供することに
ある。An object of the present invention is to provide a simple configuration using a small number of vibration detecting means, and to reliably detect a body motion signal including heartbeat and breathing without limiting the sleeping position, sleeping posture and sleeping person. It is an object of the present invention to provide a monitoring device that can perform the monitoring.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
に本発明の監視装置は、寝具の長手方向にわたって点対
称形または線対称形に区分し、この区分した所定の位置
に蛇行させて配設された線状または帯状の複数の振動検
知手段と、前記振動検知手段毎に出力信号を時系列デー
タにする信号変換手段と、前記時系列データの分散値を
算出する演算手段と、前記演算手段の演算結果を比較す
る比較手段と、前記比較手段の比較結果に応じて選択し
た前記時系列データをもとに周波数成分を算出する周波
数算出手段とからなる。 SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a monitoring device according to the present invention comprises a point-to-point monitoring system which extends in the longitudinal direction of the bedding.
Divided into nominal or line-symmetric shapes,
Of multiple linear or belt-like vibrations
Output means for each of the vibration detecting means and the time series data.
Signal conversion means for converting the variance of the time-series data
The calculating means to be calculated is compared with the calculation result of the calculating means.
Selection means according to the comparison result of the comparison means.
Frequency for calculating a frequency component based on the time-series data
And number calculation means.
【０００８】また、振動検知手段は帯状または線状の圧
電素子からなる。The vibration detecting means comprises a band-shaped or linear piezoelectric element.
【０００９】[0009]
【作用】本発明は上記構成によって次のように作用す
る。寝具の長手方向にわたって点対称形または線対称形
に区分し、この区分した所定の位置に蛇行させて配設さ
れた線状または帯状の複数の振動検知手段が、就寝者の
体動信号を検知し、信号変換手段が前記振動検知手段毎
に出力信号を時系列データとし、演算手段によって前記
時系列データの分散値を算出し、比較手段による比較の
結果よりもっとも大きな分散値の時系列データをもとに
周波数算出手段で周波数成分を算出する。 The present invention operates as follows by the above configuration. Point-symmetric or line-symmetric over the length of the bedding
And it is arranged in a meandering position
Multiple linear or band-shaped vibration detection means
A body motion signal is detected, and a signal conversion unit is provided for each of the vibration detection units.
The output signal as time-series data,
Calculate the variance of the time-series data and compare the
Based on the time series data with the largest variance value than the result
The frequency component is calculated by the frequency calculation means.
【００１０】また、振動検知手段は帯状または線状の圧
電素子からなり、これが寝具に配設され、就寝者の微細
な体動信号を検知する。The vibration detecting means comprises a band-shaped or linear piezoelectric element, which is disposed on the bedding, and detects a fine body motion signal of a sleeping person.
【００１１】[0011]
【実施例】以下本発明の実施例を説明する。Embodiments of the present invention will be described below.
【００１２】図１に本発明の第１の実施例のブロック図
を、図２にその外観図を示す。図２において、１はベッ
ド、２はベッドパッド、３は線状に連続的に設けられた
振動検知手段である。線状の振動検知手段３はここでは
テープ状に整形された圧電素子が用いられ寝具、ベッド
パッドの人体上半身部の支持部となる部位に蛇行させて
配設してある。この実施例では横向きの蛇行であるが、
縦向きや斜め、また、円形や多角形などの形に配設して
上半身支持部となる範囲を包括するようにしてあればよ
い。図１において、４は信号変換手段、５は周波数成分
算出手段、６は通報手段である。７は信号処理ユニット
で、ベッド１の側部や背面に取り付けておくようになっ
ており、この中に、信号変換手段４、周波数算出手段５
を内蔵している。信号変換手段４には、帯域増幅部８、
Ａ／Ｄ変換部９、計時部１０、データ一時記憶部１１が
設けてあり、周波数算出手段５には、フィルタ部１２、
波形整形部１３、ＦＦＴ算出部１４が含まれる。FIG. 1 is a block diagram of a first embodiment of the present invention, and FIG. 2 is an external view thereof. In FIG. 2, 1 is a bed, 2 is a bed pad, and 3 is a vibration detecting means provided continuously in a linear manner. Here, the linear vibration detecting means 3 uses a piezoelectric element shaped like a tape, and is arranged in a meandering manner at a portion of the bedding and the bed pad that serves as a support portion of the upper body of the human body. In this embodiment, it is meandering sideways,
What is necessary is just to arrange vertically, diagonally, circular, polygonal, etc. so that the range which becomes an upper body support part may be included. In FIG. 1, reference numeral 4 denotes signal conversion means, 5 denotes frequency component calculation means, and 6 denotes notification means. Reference numeral 7 denotes a signal processing unit, which is attached to the side or the back of the bed 1. The signal processing unit 7 includes a signal conversion unit 4 and a frequency calculation unit 5.
Built-in. The signal conversion unit 4 includes a band amplification unit 8,
An A / D converter 9, a timer 10, and a data temporary storage 11 are provided. The frequency calculator 5 includes a filter 12,
A waveform shaping unit 13 and an FFT calculation unit 14 are included.
【００１３】上記構成による作用を以下に示す。振動検
知手段３には、線状または、帯状に成形された圧電素子
を用いる。ここで用いた圧電素子は、ポリフッ化ビニリ
デン（ＰＶＤＦ）等の高分子圧電材料を薄膜状にし両面
に可とう性の電極膜を付着させテープ状に成形されたも
ので、人がベッドパッド２上に横たわると入床時の体動
や寝返り、心臓の拍動や呼吸による身体の細かな体動等
によって生じた振動で圧電素子が変形をうけ圧電効果に
より電圧が発生し、信号を出力する。ここで検知された
信号は、信号処理ユニット７に納められた信号変換手段
４におくられる。ここで、帯域増幅部８をとおり、計時
部１０で計時される単位時間毎にＡ／Ｄ変換部９によっ
て、デジタル信号に変換され、データ一時記憶部１１に
保持される。データ保持量が一定の量になると、周波数
算出手段５へおくられる。ここで、フィルタ部１２は心
拍、呼吸の各々の信号抽出にふさわしい帯域のフィルタ
を持っており、各々のフィルタを通り、波形整形手段１
３によって基本周波数を強調するための包絡線処理など
をおこない、ＦＦＴ算出部１４において、パワースペク
トルを算出する。この演算結果例えば１分間当りの心拍
数、呼吸数等が通報手段６へ送られる。そして例えば病
院などで使用される場合にはナースセンターなどへ、ま
た患者などが在宅でこの装置を使用する場合には医者な
どの監視者に通報される。The operation of the above configuration will be described below. As the vibration detecting means 3, a linear or band-shaped piezoelectric element is used. The piezoelectric element used here is a thin film made of a polymer piezoelectric material such as polyvinylidene fluoride (PVDF), and a flexible electrode film is adhered to both surfaces thereof, and is formed into a tape shape. When the user lays down, the piezoelectric element undergoes deformation due to vibrations caused by body movements or turning over when entering the bed, or minute body movements of the body due to heartbeats or breathing, and a voltage is generated by the piezoelectric effect, and a signal is output. The signal detected here is sent to the signal conversion means 4 contained in the signal processing unit 7. Here, the signal passes through the band amplification unit 8, is converted into a digital signal by the A / D conversion unit 9 for each unit time measured by the clock unit 10, and is stored in the data temporary storage unit 11. When the data holding amount reaches a certain amount, it is sent to the frequency calculating means 5. Here, the filter unit 12 has a filter having a band suitable for extracting each signal of heartbeat and respiration, passes through each filter, and passes through the waveform shaping unit 1.
3, an envelope process for emphasizing the fundamental frequency is performed, and the FFT calculation unit 14 calculates a power spectrum. The result of this calculation, for example, the heart rate and respiratory rate per minute, is sent to the notifying means 6. For example, when it is used in a hospital or the like, it is notified to a nurse center or the like, and when a patient or the like uses this device at home, it is notified to a supervisor such as a doctor.
【００１４】上記作用により次のような効果が得られ
る。振動検知手段３が寝具の上半身の支持部となる範囲
を包括するように配設してあるので、就寝者が寝返りを
うって体の位置が左右に変わったり、上下の移動があっ
たり、寝位置や寝姿勢が変化しても、また、寝具を使用
する人が変化する病院などのような場所で、使用者の身
体特徴（身長の高低など）が変わっても、心拍や呼吸等
の微細な体動信号を確実に検知することができる。簡易
な構成なので製作時のコスト、工数も低減でき、装置の
小型化も可能となる。また、身体の一部位があたるだけ
でなく、他部位も同時に同一の振動検知手段にあたるの
で、より強調して信号検出することができる。図３に、
体の各部位から得られた信号が信号変換手段４のＡ／Ｄ
変換部９でＡ／Ｄ変換された後の出力を示す。図３の
（ａ）は肩胛骨下10cmの位置で検知された信号、（ｂ）
は腰部で検知された信号、（ｃ）は踵部で検知された信
号である。また（ｄ）は図１のように蛇行させた振動検
知手段３によって検知された信号、（ｅ）はこの時同時
に計測された心拍パルスと信号、（ｆ）は呼吸信号であ
る。この図３からもわかるように、（ｄ）には心拍信
号、呼吸信号が重畳していることが確認される。このよ
うに１つの振動検知手段３によって信号の特徴をより強
調して検知することができ、周波数算出手段５で算出さ
れる周波数の精度も向上する。The following effects can be obtained by the above operation. Since the vibration detecting means 3 is provided so as to cover the range of the upper body supporting part of the bedding, the sleeping person turns over, the body position changes left and right, the body moves up and down, Even if the position or sleeping posture changes, or if the physical characteristics of the user (such as height) change in places such as hospitals where the people using the bedding change, minute changes in heart rate and breathing may occur. A strong body motion signal can be reliably detected. Since it has a simple configuration, it is possible to reduce costs and man-hours at the time of manufacturing, and it is also possible to reduce the size of the apparatus. In addition, not only one part of the body hits, but also another part simultaneously hits the same vibration detecting means, so that the signal can be more emphasized and detected. In FIG.
The signal obtained from each part of the body is converted by the A / D
The output after A / D conversion by the conversion unit 9 is shown. FIG. 3A shows a signal detected at a position 10 cm below the scapula, and FIG.
Is a signal detected at the waist, and (c) is a signal detected at the heel. (D) is a signal detected by the vibration detecting means 3 meandering as shown in FIG. 1, (e) is a heartbeat pulse and a signal measured simultaneously at this time, and (f) is a respiration signal. As can be seen from FIG. 3, it is confirmed that the heartbeat signal and the respiration signal are superimposed on (d). As described above, the signal characteristic can be emphasized and detected by one vibration detecting unit 3, and the accuracy of the frequency calculated by the frequency calculating unit 5 can be improved.
【００１５】また、このような広範囲にわたっての信号
検出は、２枚の面状の電極を絶縁材の両面に貼付け、生
体の体動信号を静電容量の変化として検知する方式も考
えられるが、この場合、電極の防水加工や、シールド加
工など必要な加工を施すと、寝具として快適な睡眠をと
るための望ましい通気性、通湿性、保温性などの性能を
保つことが出来ない。ところが、本実施例であれば、部
分的に配設してあるので全面的な振動検知手段の配設と
は異なり適度な通気性、通湿性、保温性などの性能を保
つことが出来る。For such a wide range of signal detection, a method in which two planar electrodes are attached to both surfaces of an insulating material and a body movement signal of a living body is detected as a change in capacitance can be considered. In this case, if necessary processing such as waterproofing or shielding of the electrode is performed, desired performance such as air permeability, moisture permeability, and heat retention for sleeping comfortably as bedding cannot be maintained. However, according to the present embodiment, since the vibration detecting means is partially disposed, it is possible to maintain appropriate performance such as air permeability, moisture permeability, and heat retention unlike the arrangement of the vibration detecting means on the entire surface.
【００１６】図４に本発明の第２の実施例のブロック
図、図５にその外観図を示す。図において、振動検知手
段３ａ及び３ｂはベッドパッド２にベッド１の長手方向
に上・下２つに区分し、頭方向と足方向に各々備え付け
られている。信号処理ユニット７には、信号変換手段４
ａ、４ｂと、演算手段１５ａ、１５ｂと比較手段１６
と、周波数算出手段５を内蔵している。６は通信手段で
ある。FIG. 4 is a block diagram of a second embodiment of the present invention, and FIG. 5 is an external view thereof. In the figure, the vibration detecting means 3a and 3b are divided into two upper and lower parts in the longitudinal direction of the bed 1 on the bed pad 2, and are provided in the head direction and the foot direction, respectively. The signal processing unit 7 includes a signal conversion unit 4
a, 4b, computing means 15a, 15b and comparing means 16
And frequency calculation means 5. Reference numeral 6 denotes a communication unit.
【００１７】上記構成による作用を以下に示す。振動検
知手段３ａ、３ｂには、線状または、帯状に成形された
圧電素子を用いる。人がベッドパッド２上に横たわると
入床時の体動や寝返り、心臓の拍動や呼吸による身体の
細かな体動等によって生じた振動で圧電素子が変形をう
け圧電効果により電圧が発生し、信号を出力する。例え
ば、就寝者が振動検知手段３ａの方向へ頭部を向ける
と、振動検知手段３ａには上半身の重心支持部（例え
ば、胸部から腰部にかけての部位）の加重がかかる。振
動検知手段３ｂには、下半身の重心支持部（かかと、ふ
くらはぎ、だいたい部など）の加重がかかる。振動検知
手段３ａは第１の実施例において説明したように、心
拍、呼吸などの体動信号を確実に捕らえることができる
が、振動検知手段３ｂでは、特に呼吸信号について検知
することが不十分となる。しかし、就寝者の頭の方向が
逆になると、振動検知手段３ｂが心拍、呼吸による体動
信号を確実にとらえることができる。このように対称形
に配設した振動検知手段３ａ、３ｂの圧電素子で検知さ
れた信号は、信号処理ユニット７に納められた信号変換
手段４ａ、４ｂに送られる。ここでは第１の実施例と同
様に信号処理が行われるので、その説明は省略する。信
号変換手段４ａ、４ｂにおいて時系列データに変換され
ると、そのデータは各々、演算手段１５ａ、１５ｂにお
いて統計量を演算するのに用いられる。ここでは、平均
値からのばらつき度を示す分散値を算出する。この分散
値は、心拍、呼吸の信号が確実に検知されていればいる
ほど大きな値を示す。よって、比較手段１６において、
演算手段１５ａ、１５ｂ各々の演算結果を比較し、確実
に体動信号を検知している大きな分散値がどの振動検知
手段から得られたデータに対応するものであるかを判断
する。そして、周波数算出手段５においては、比較手段
１６で最も大きな分散値を得られた時系列データを用い
て、第１の実施例と同様に基本周波数の算出を行う。算
出された基本周波数は、通信手段６によって、例えば１
分間当りの心拍数、呼吸数といった数値で第１の実施例
と同様に監視者へ送られる。The operation of the above configuration will be described below. For the vibration detecting means 3a, 3b, a linear or band-shaped piezoelectric element is used. When a person lays on the bed pad 2, the piezoelectric element is deformed by vibrations caused by body movements and turning over when entering the bed, minute body movements of the body due to heart beats and breathing, and a voltage is generated by a piezoelectric effect. And output a signal. For example, when the sleeping person turns his / her head in the direction of the vibration detecting means 3a, the vibration detecting means 3a is loaded with the support of the center of gravity of the upper body (for example, a part from the chest to the waist). The vibration detecting means 3b is weighted by the center of gravity support of the lower body (heel, calf, approximate part, etc.). As described in the first embodiment, the vibration detecting means 3a can surely capture a body motion signal such as a heartbeat and a breath. However, the vibration detecting means 3b cannot detect particularly the respiratory signal. Become. However, when the direction of the head of the sleeping person is reversed, the vibration detecting means 3b can reliably detect a body motion signal due to heartbeat and respiration. The signals detected by the piezoelectric elements of the vibration detecting means 3a, 3b arranged symmetrically in this way are sent to the signal converting means 4a, 4b contained in the signal processing unit 7. Here, signal processing is performed in the same manner as in the first embodiment, and a description thereof will be omitted. When converted into time-series data by the signal conversion means 4a and 4b, the data is used to calculate a statistic in the calculation means 15a and 15b, respectively. Here, a variance value indicating the degree of variation from the average value is calculated. The variance value increases as the heartbeat and respiration signals are detected more reliably. Therefore, in the comparison means 16,
The calculation results of the calculation means 15a and 15b are compared, and it is determined which vibration detection means corresponds to the data obtained from the large variance that reliably detects the body motion signal. Then, the frequency calculating means 5 calculates the fundamental frequency using the time-series data for which the largest variance value is obtained by the comparing means 16 in the same manner as in the first embodiment. The calculated fundamental frequency is, for example, 1
Numerical values such as heart rate and respiratory rate per minute are sent to the monitor in the same manner as in the first embodiment.
【００１８】上記作用により次のような効果が得られ
る。振動検知手段３ａ、３ｂが頭方向と足方向に対称形
となるようにとりつけてあるため、使用者が天地を逆に
して就寝したり、寝具取り付け時に天地方向を逆にした
としても確実に体動信号を検知することができる。ま
た、使用者側からは、天地方向を気にすることなく使用
できて、また、信号処理ユニット７の取り付け位置など
の向きに関しても方向を気にすることがなく、取り扱い
が簡単になる。The following effects are obtained by the above operation. Since the vibration detecting means 3a and 3b are mounted so as to be symmetrical in the head direction and the foot direction, even if the user goes to bed upside down or goes upside down at the time of attaching the bedding, the body is surely turned upside down. Motion signals can be detected. In addition, the user can use the apparatus without worrying about the top and bottom directions, and does not care about the direction of the mounting position of the signal processing unit 7 and the like, so that the handling is simplified.
【００１９】なお、振動検出手段３の寝具２への配設の
仕方としては、他に次のようなものがある。There are other methods of disposing the vibration detecting means 3 on the bedding 2 as follows.
【００２０】図６に示したものは、寝具の長手方向にわ
たって寝具の位置を２つに区分し、中心線に対して線対
称になるように振動検知手段３ｃ、３ｄ、３ｅの３本を
配設したものである。In the apparatus shown in FIG. 6, the position of the bedding is divided into two along the longitudinal direction of the bedding, and three vibration detecting means 3c, 3d and 3e are arranged so as to be line-symmetric with respect to the center line. It was established.
【００２１】また図７に示したものは、図６と同様に、
寝具の長手方向にわたって寝具の位置を２つに区分し、
中心点に対して点対称になるように振動検知手段３ｆ、
３ｇを配設したものである。The one shown in FIG. 7 is similar to FIG.
Dividing the position of the bedding into two along the longitudinal direction of the bedding,
The vibration detecting means 3f is point-symmetric with respect to the center point,
3 g are provided.
【００２２】また図８に示したものは寝具の長手方向に
わたって寝具の位置を２つに区分して、この２つの場所
に振動検知手段３ｈ、３ｉを同じ形で配設するようにし
たものである。In FIG. 8, the position of the bedding is divided into two along the longitudinal direction of the bedding, and the vibration detecting means 3h and 3i are arranged in the same place in these two places. is there.
【００２３】さらに図９に示したものは、寝具の長手方
向にわたって２つに区分して、２つの区分部分において
各々点対称になるように振動検知手段３ｊ、３ｋ、３
ｌ、３ｍの４本を配設するようにしたものである。FIG. 9 shows the vibration detecting means 3j, 3k and 3k divided into two parts along the longitudinal direction of the bedding so as to be point-symmetrical in each of the two divided parts.
1, 4 meters are arranged.
【００２４】なおここに示した実施例は、いずれも長手
方向に２つに区分しているが、２つに限定するものでは
なく３つ以上に区分することも考えられる。In each of the embodiments shown here, the longitudinal direction is divided into two parts. However, the present invention is not limited to two parts but may be divided into three or more parts.
【００２５】[0025]
【発明の効果】本発明の監視装置によると、振動検知手
段が蛇行させてあり、寝具のうち就寝者が就寝する部位
と考えられる所定の部位を包括するように配設されてい
るので、寝返りをうって体の位置が変わったり寝位置や
寝姿勢が変化したりしても、身体の一部があたるだけで
なく他部位も一つの振動検知手段のいずれかの位置に同
時に関節的に接触することになるので、信号の特徴をよ
り強調して明確な体動信号を検知出来、さらに、検出さ
れた信号について簡易な信号処理を行うだけで、生体信
号を抽出可能となる。 According to the monitoring device of the present invention, the vibration detecting means
The step is meandering and the part of the bedding where the sleeping person goes to bed
Are arranged so as to cover the predetermined parts considered to be
So, when you turn over, your body position changes,
Even if your sleeping posture changes, just hit a part of your body
And other parts are located at the same position
Sometimes it comes into contact with the joint, so the characteristics of the signal
To detect a clear body motion signal.
Performing simple signal processing on the acquired signal
Issue can be extracted.
【図１】本発明の第１の実施例における監視装置のブロ
ック図FIG. 1 is a block diagram of a monitoring device according to a first embodiment of the present invention.
【図２】同装置の外観斜視図FIG. 2 is an external perspective view of the apparatus.
【図３】同装置の振動検知手段によって身体の各部位か
ら検知した信号出力図FIG. 3 is a signal output diagram detected from each part of the body by the vibration detecting means of the device.
【図４】本発明の第２の実施例における監視装置のブロ
ック図FIG. 4 is a block diagram of a monitoring device according to a second embodiment of the present invention.
【図５】同装置の外観斜視図FIG. 5 is an external perspective view of the apparatus.
【図６】本発明の第３の実施例における監視装置の振動
検知手段の配設を示す平面図FIG. 6 is a plan view showing an arrangement of a vibration detecting means of a monitoring device according to a third embodiment of the present invention.
【図７】本発明の第４の実施例における監視装置の振動
検知手段の配設を示す平面図FIG. 7 is a plan view showing the arrangement of the vibration detecting means of the monitoring device according to the fourth embodiment of the present invention.
【図８】本発明の第５の実施例における監視装置の振動
検知手段の配設を示す平面図FIG. 8 is a plan view showing the arrangement of the vibration detecting means of the monitoring device according to the fifth embodiment of the present invention.
【図９】本発明の第６の実施例における監視装置の振動
検知手段の配設を示す平面図FIG. 9 is a plan view showing the arrangement of the vibration detecting means of the monitoring device according to the sixth embodiment of the present invention.
【図１０】従来の監視装置の振動検知手段の配設を示す
平面図FIG. 10 is a plan view showing the arrangement of vibration detection means of a conventional monitoring device.
３ 振動検知手段 ４ 信号変換手段手段 ５ 周波数算出手段 １５ 演算手段 １６ 比較手段 3 Vibration detection means 4 Signal conversion means 5 Frequency calculation means 15 Calculation means 16 Comparison means
フロントページの続き (56)参考文献 特開 平６−154179（ＪＰ，Ａ) 特開 平６−98863（ＪＰ，Ａ) 特開 平４−272746（ＪＰ，Ａ) 特開 平６−70961（ＪＰ，Ａ) 特開 平４−109960（ＪＰ，Ａ) 特開 昭63−150047（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) A61B 5/00 - 5/22 Continuation of the front page (56) References JP-A-6-154179 (JP, A) JP-A-6-98863 (JP, A) JP-A-4-272746 (JP, A) JP-A-6-70961 (JP) JP-A-4-109960 (JP, A) JP-A-63-150047 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) A61B 5/00-5/22
Claims (2)
は線対称形に区分し、この区分した所定の位置に蛇行さ
せて配設された線状または帯状の複数の振動検知手段
と、前記振動検知手段毎に出力信号を時系列データにす
る信号変換手段と、前記時系列データの分散値を算出す
る演算手段と、前記演算手段の演算結果を比較する比較
手段と、前記比較手段による比較の結果もっとも大きな
分散値の時系列データをもとに周波数成分を算出する周
波数算出手段とからなる監視装置。 1. A point symmetrical shape in the longitudinal direction of the bedding or
Is divided into a line symmetrical shape, and a meandering
A plurality of linear or belt-shaped vibration detecting means
And converting the output signal into time-series data for each of the vibration detecting means.
Signal conversion means for calculating a variance value of the time-series data.
Comparing the calculation result of the calculation means with the calculation result of the calculation means.
Means and the largest result of the comparison by the comparing means.
Cycle for calculating frequency component based on variance time-series data
A monitoring device comprising wave number calculating means.
１記載の監視装置。 2. A vibration detecting means comprising a piezoelectric element.
2. The monitoring device according to 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12776194A JP3353460B2 (en) | 1994-06-09 | 1994-06-09 | Monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12776194A JP3353460B2 (en) | 1994-06-09 | 1994-06-09 | Monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07327939A JPH07327939A (en) | 1995-12-19 |
| JP3353460B2 true JP3353460B2 (en) | 2002-12-03 |
Family
ID=14968043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12776194A Expired - Fee Related JP3353460B2 (en) | 1994-06-09 | 1994-06-09 | Monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3353460B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017199943A1 (en) * | 2016-05-17 | 2017-11-23 | ミネベアミツミ株式会社 | Respiration waveform drawing system |
| WO2017199944A1 (en) * | 2016-05-17 | 2017-11-23 | ミネベアミツミ株式会社 | Respiration waveform drawing system and respiration waveform drawing method |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3596212B2 (en) * | 1997-02-20 | 2004-12-02 | 松下電器産業株式会社 | Biological monitoring device |
| US6208250B1 (en) * | 1999-03-05 | 2001-03-27 | Hill-Rom, Inc. | Patient position detection apparatus for a bed |
| JP2000300541A (en) * | 1999-04-21 | 2000-10-31 | Alps Electric Co Ltd | Biosignal detecting apparatus |
| JP3477166B2 (en) | 2000-12-07 | 2003-12-10 | 学校法人慶應義塾 | Monitoring device |
| WO2008007713A1 (en) * | 2006-07-14 | 2008-01-17 | Daikin Industries, Ltd. | Body motion judgment device |
| JP4059298B2 (en) * | 2006-07-14 | 2008-03-12 | ダイキン工業株式会社 | Body movement judgment device |
| JP4886550B2 (en) * | 2007-02-28 | 2012-02-29 | 株式会社タニタ | Biological information acquisition device |
| WO2017018506A1 (en) * | 2015-07-30 | 2017-02-02 | ミネベア株式会社 | Physical condition detecting device, physical condition detecting method and bed system |
| JP6122188B1 (en) | 2015-07-30 | 2017-04-26 | ミネベアミツミ株式会社 | Body condition detection device, body condition detection method, and bed system |
| JP7018621B2 (en) * | 2016-07-12 | 2022-02-14 | 国立大学法人秋田大学 | Biosignal analysis device, biosignal analysis method and biosignal analysis system |
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1994
- 1994-06-09 JP JP12776194A patent/JP3353460B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017199943A1 (en) * | 2016-05-17 | 2017-11-23 | ミネベアミツミ株式会社 | Respiration waveform drawing system |
| WO2017199944A1 (en) * | 2016-05-17 | 2017-11-23 | ミネベアミツミ株式会社 | Respiration waveform drawing system and respiration waveform drawing method |
| JP2017205220A (en) * | 2016-05-17 | 2017-11-24 | ミネベアミツミ株式会社 | Respiratory waveform drawing system and respiratory waveform drawing method |
| JP2017205223A (en) * | 2016-05-17 | 2017-11-24 | ミネベアミツミ株式会社 | Respiratory waveform drawing system |
| US10610430B2 (en) | 2016-05-17 | 2020-04-07 | Minebea Mitsumi Inc. | Respiration waveform drawing system and respiration waveform drawing method |
| US10617326B2 (en) | 2016-05-17 | 2020-04-14 | Minebea Mitsumi Inc. | Respiration waveform drawing system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07327939A (en) | 1995-12-19 |
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