JPH0428344A - On-bed state monitoring device - Google Patents
On-bed state monitoring deviceInfo
- Publication number
- JPH0428344A JPH0428344A JP2135891A JP13589190A JPH0428344A JP H0428344 A JPH0428344 A JP H0428344A JP 2135891 A JP2135891 A JP 2135891A JP 13589190 A JP13589190 A JP 13589190A JP H0428344 A JPH0428344 A JP H0428344A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- bed
- output signal
- comparison circuit
- display means
- 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.)
- Granted
Links
- 238000012806 monitoring device Methods 0.000 title claims description 15
- 238000004891 communication Methods 0.000 claims abstract description 13
- 230000010354 integration Effects 0.000 claims abstract description 7
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 230000007257 malfunction Effects 0.000 description 7
- 230000029058 respiratory gaseous exchange Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000474 nursing effect Effects 0.000 description 4
- 239000002033 PVDF binder Substances 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 206010038743 Restlessness Diseases 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 206010012289 Dementia Diseases 0.000 description 1
- 206010041347 Somnambulism Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 206010013663 drug dependence Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 208000011117 substance-related disease Diseases 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は同時に多人数の在床状態を一括集中してモニタ
する在床モニタ装置に関するもので、その利用分野とし
ては、病院等の医療施設や高齢者の養護施設等において
は患者および在所者の日常的な行動管理のために使用さ
れるとともに、一般家庭では家族の就寝管理、−入幕し
の高齢者の行動管理等のために使用されるものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a bed monitoring device that centrally monitors the bed status of a large number of people at the same time. It is used in nursing homes for elderly people to manage the daily behavior of patients and residents, and in general households to manage the sleeping habits of family members and the behavior of elderly people entering the nursing home. It is something.
従来の技術
３・ぐ−シ
従来この種の在床モニタ装置は、例えば防犯装置に使用
されている赤外線センサや超音波センサを配設した複数
のベッドと、前記した各々のセンサからの出力信号より
在床状態を判定する判定部と、前記判定部の出力信号を
表示して各々のベッドの在床状態を集中的にモニタする
モニタ部とから構成されていた。上記構成により、各々
のベッド上に存在する人体が動くことにより生じる赤外
線または超音波の変化量をセンサーにより検出し各々の
ベッドの在床状態を判定、表示していた。Conventional technology 3. Conventional bed occupancy monitoring devices of this type include a plurality of beds equipped with infrared sensors or ultrasonic sensors used in security devices, for example, and output signals from each of the above-mentioned sensors. The bed was comprised of a determination unit that determines the bed status of each bed, and a monitor unit that displays the output signal of the determination unit and intensively monitors the bed status of each bed. With the above configuration, the sensor detects the amount of change in infrared rays or ultrasonic waves caused by the movement of a human body present on each bed, and determines and displays the bed status of each bed.
その他、各々のベッドのマツトレス表面に圧力スイッチ
を配設した構成もあり、体重により圧力スイッチがオン
されて在床状態を判定し表示していた。In addition, there is also a configuration in which a pressure switch is placed on the surface of the mattress of each bed, and the pressure switch is turned on depending on the body weight to determine and display the bed status.
発明が解決しようとする課題
しかしながら、上記のような在床モニタ装置の構成では
、人眼して体動がなくなった場合には赤外線または超音
波の変化が生じないので非在床と判定してしまい誤動作
が起こっていた。圧力スイッチによる構成では、実際に
は非在床状態である場合にマツトレス上に重い荷物等を
置いたままにするとスイッチがオンして在床状態である
と判定してしまい誤動作が起こっていた。このように、
従来の在床モニタ装置では誤動作が生じるために同時に
多人数の在床状態を一括集中してモニタすることが国難
であるという課題があった。Problems to be Solved by the Invention However, with the configuration of the bed presence monitoring device as described above, when there is no body movement as seen by the human eye, no change in infrared rays or ultrasonic waves occurs, so it is determined that the bed is not in bed. A malfunction was occurring. In the configuration using a pressure switch, if a heavy item such as a heavy item is left on the pinerest when it is actually not in the bed, the switch turns on and it is determined that the bed is in the bed, causing a malfunction. in this way,
Conventional bed occupancy monitoring devices have the problem that malfunctions occur, making it a national problem to centrally monitor the bed occupancy status of a large number of people at the same time.
本発明はかかる従来の課題を解消するもので、上記のよ
うな誤動作がなく確実に在床を判定することにより、同
時に多人数の在床状態を一括集中してモニタすることが
可能な実用的な在床モニタ装置を提供することを目的と
する。The present invention solves such conventional problems, and is a practical method that can centrally monitor the bed status of many people at the same time by reliably determining bed presence without the above-mentioned malfunctions. The purpose of this invention is to provide a bed occupancy monitoring device.
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在床モニタ装置は、
マツトレス、ふとん、シーツ等の寝具に配設可能な可撓
性の圧電素子と、前記圧電素子の出力信号のうち所定の
周波数成分のみを通過させるフィルタ回路と、前記フィ
ルタ回路の出力信号を増幅する増幅回路と、前記増幅回
路の出力信号を整流する整流回路と、前記整流回路の出
力信号を積分する積分回路と、前記積分回路からの出力
５契−ジ
信号があらかじめ定められた設定範囲内であれば出力を
行なう比較回路と、前記フィルタ回路、前記増幅回路、
前記整流回路、前記積分回路、前記比較回路、前記圧電
素子を配設した寝具とを各々に具備した複数のベッドと
、通信手段と、前記通信手段を介して前記比較回路の出
力信号をデイスプレィ等に表示する表示手段とを備えた
ものである。Means for Solving the Problems In order to solve the above problems, the bed occupancy monitoring device of the present invention has the following features:
A flexible piezoelectric element that can be placed on bedding such as a pinerest, futon, and sheets; a filter circuit that passes only a predetermined frequency component of the output signal of the piezoelectric element; and amplification of the output signal of the filter circuit. an amplifier circuit, a rectifier circuit that rectifies the output signal of the amplifier circuit, an integrator circuit that integrates the output signal of the rectifier circuit, and an output signal from the integrator circuit that is within a predetermined setting range. a comparison circuit that outputs an output if any; the filter circuit; the amplifier circuit;
A plurality of beds each including the rectifying circuit, the integrating circuit, the comparing circuit, and bedding provided with the piezoelectric element, a communication means, and an output signal of the comparison circuit via the communication means, such as a display, etc. and display means for displaying the information.
作用
本発明は上記の構成によって以下のように作用する。す
なわち、複数の各々のベッドに配設された圧電素子が寝
具上の人体の心拍、呼吸および寝返り等の体動による変
形を受けると、圧電素子から圧電効果による電圧が発生
する。そして発生した電圧出力のうち所定の周波数成分
のみがフィルタ回路により通過させられ、増幅回路によ
り増幅され整流回路により整流された後、積分回路によ
り積分される。そして、比較回路により積分回路からの
出力信号があらかじめ定められた設定範囲内であれば出
力が行なわれる。各々のベッドの比６く−シ
較回路の出力信号は通信手段を介して表示手段のデイス
プレィ等に一括して表示される。Operation The present invention operates as follows with the above configuration. That is, when the piezoelectric elements disposed on each of the plurality of beds undergo deformation due to body movements such as heartbeat, breathing, and turning over of a human body on the bedclothes, a voltage is generated from the piezoelectric elements due to the piezoelectric effect. Only a predetermined frequency component of the generated voltage output is passed through the filter circuit, amplified by the amplifier circuit, rectified by the rectifier circuit, and then integrated by the integration circuit. Then, if the output signal from the integrating circuit is within a predetermined setting range, the comparison circuit outputs the signal. The output signals of the comparison circuits of each bed are collectively displayed on the display of the display means via the communication means.
実施例 以下、本発明の実施例を添付図面に基づいて説明する。Example Embodiments of the present invention will be described below with reference to the accompanying drawings.
この実施例は複数のベッドからなるが、第１図はそのう
ちの代表的なベッド１２を示した斜視図、第２図は同実
施例のブロック図である。This embodiment consists of a plurality of beds, of which FIG. 1 is a perspective view showing a typical bed 12, and FIG. 2 is a block diagram of the same embodiment.
第１図、第２図において、１は可撓性のある圧電素子で
、ここで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撓性の電極膜を付着さ
せたものをテープ状に成型したもので、製造コストが比
較的安く大量に生産できるものである。圧電素子１はマ
ツトレス１１の表面に接着等により固定される。２は圧
電素子９の出力信号で所定の周波数成分のみを通過させ
るフィルタ回路で、チエビシエフ回路等から構成される
。８はフィルタ回路２の出力信号を増幅す・る増幅回路
、４は増幅回路３の出力信号を整流する整流回路、５は
整流回路４の出力信号を積分する積分回路、６は積分回
路からの出力信号があらか７・ぐ一つ７
しめ定められた設定範囲内であれば出力を行なう比較回
路、７はフィルタ回路２、増幅回路３、整流回路４、積
分回路５、比較回路６を内蔵した回路ユニット、８は通
信ケーブル、９はデイスプレィ１０を有した表示手段で
ある。In Figures 1 and 2, 1 is a flexible piezoelectric element, in which a thin film made of a polymeric piezoelectric material such as polyvinylidene fluoride (PVDF) is attached to both sides with flexible electrode films. It is made by molding something into a tape shape, and the manufacturing cost is relatively low and it can be produced in large quantities. The piezoelectric element 1 is fixed to the surface of the pinerest 11 by adhesive or the like. Reference numeral 2 denotes a filter circuit that allows only a predetermined frequency component of the output signal of the piezoelectric element 9 to pass through, and is composed of a Thievishev circuit or the like. 8 is an amplifier circuit that amplifies the output signal of the filter circuit 2; 4 is a rectifier circuit that rectifies the output signal of the amplifier circuit 3; 5 is an integrator circuit that integrates the output signal of the rectifier circuit 4; Comparator circuit that outputs output if the output signal is within a predetermined setting range. 8 is a communication cable, and 9 is a display means having a display 10.
上記構成において、各々のベッドにおいてマツトレス１
１に配設された圧電素子１がマツトレス上の生体の心拍
、呼吸および寝返り等の体動による変形を受けると、圧
電素子１から圧電効果による電圧が発生する。そして発
生した電圧出力のうち所定の周波数成分のみがフィルタ
回路２により通過させられ、増幅回路３により増幅され
た後、整流回路４により整流され、積分回路５により積
分される。ここで、フィルタ回路の帯域設定は約１〜約
Ｉ Ｑ Ｈｚとする。実際の状況における増幅回路３の
出力信号を第３図ａ、ｂに、積分回路の出力信号を第４
図に示す。第３図すは第３図ａの図中Ｓの部分を拡大し
たものである。図中Ｔ１の部分はベッド上に人体が存在
している場合、′ｒ２の部分は人体が離床して存在しな
い場合である。In the above configuration, each bed has 1 pine tress.
When the piezoelectric element 1 disposed on the mattress is deformed by body movements such as heartbeat, breathing, and turning over of a living body on the mattress, a voltage is generated from the piezoelectric element 1 due to the piezoelectric effect. Only a predetermined frequency component of the generated voltage output is passed through the filter circuit 2, amplified by the amplifier circuit 3, rectified by the rectifier circuit 4, and integrated by the integration circuit 5. Here, the band setting of the filter circuit is approximately 1 to approximately IQ Hz. The output signals of the amplifier circuit 3 in the actual situation are shown in Figures 3a and 3b, and the output signals of the integrating circuit are shown in Figure 4.
As shown in the figure. FIG. 3 is an enlarged view of the portion S in FIG. 3a. In the figure, the portion T1 is when the human body is present on the bed, and the portion 'r2 is when the human body has left the bed and is not present.
図より入床、離床時や寝返り等のように粗体動が起こっ
た場合は大きな出力があり、在床していて安静収態の場
合は人体の心拍や呼吸等に伴う微小な体動によりレベル
の低い出力が得られ、離床していると出力がゼロとなる
。すなわち、就寝時に寝床内に人体が存在する限り少な
くとも上記のような人体の心拍や呼吸等に伴う微小な体
動によりレベルの低い出力が得られる。このことを利用
して、比較回路６では積分回路５の出力信号が第４図中
のＶａとｖｂの範囲内であれば在床状態であるとして出
力を行なう。上記のような人体の心拍や呼吸等に伴う微
小な体動には個人差があるが、被験者実験等によりＶａ
とｖｂを求めることができる。各ベッドの比較回路６か
らの出力信号は通信手段８を介して表示手段９のデイス
プレィ１０に表示される。As shown in the figure, there is a large output when gross body movements occur, such as when entering or leaving bed or turning over, while when the person is in bed and is at rest, there is a large output due to minute body movements associated with the body's heartbeat, breathing, etc. A low-level output is obtained, and the output becomes zero when the patient is out of bed. That is, as long as a human body exists in the bed during sleep, a low-level output can be obtained at least due to minute body movements associated with the human body's heartbeat, breathing, etc. as described above. Utilizing this fact, the comparator circuit 6 outputs an output assuming that the bed is in a state if the output signal of the integrating circuit 5 is within the range of Va and vb in FIG. Although there are individual differences in minute body movements associated with the human body's heartbeat, breathing, etc., as mentioned above, Va
and vb can be obtained. The output signal from the comparison circuit 6 of each bed is displayed on the display 10 of the display means 9 via the communication means 8.
上記作用により、各々のベッドに配設された圧電素子１
により人体の心拍や呼吸等に伴う微小な体動を検出して
在床状態をモニタするので、従来のような赤外センサや
超音波センサを用いた構成９、ぐ−二ノ
による在床モニタ装置にみられたような誤動作は起こる
ことがなく確実に多人数の在床状態を一括集中してモニ
タできる。また、荷物等をマツトレス上に置くといった
場合には圧電素子が変形し電圧を発生するが、荷物のよ
うな無生命の物体には人体の心拍や呼吸等に伴う微小な
動きはないので、荷物を置いても不在と判定される。よ
って、従来のような圧力スイッチを用いた構成による在
床モニタ装置にみられたような誤動作は生じることがな
い。Due to the above action, the piezoelectric element 1 disposed on each bed
Since the in-bed status is monitored by detecting minute body movements associated with the heartbeat and breathing of the human body, the in-bed status monitoring device by Gunino uses a conventional infrared sensor and ultrasonic sensor. This system does not cause malfunctions like those seen in 2009, and the bed status of many people can be reliably monitored at the same time. In addition, when placing luggage, etc. on a pinerest, the piezoelectric element deforms and generates voltage, but inanimate objects such as luggage do not have minute movements associated with the human body's heartbeat or breathing, so Even if you leave it there, it will be judged as absent. Therefore, malfunctions that occur in conventional bed monitoring devices using pressure switches do not occur.
これにより、病院等の医療施設や高齢者の養護施設等で
の患者および在所者の日常的な行動管理や家庭での家族
の就寝管理等が確実でかつ実用的な形で実現可能となる
。特に痴呆性患者、麻薬常習患者、夢遊病患者等の徘徊
管理、患者の就寝管理等を一括して行なえるので、より
きめの細かい治療ができるとともに、管理行為を行なう
側の医師、看護婦の労働量が軽減できるといった効果が
ある。This will make it possible to manage the daily behavior of patients and residents at medical facilities such as hospitals and nursing homes for the elderly, and to manage the sleeping habits of family members at home in a reliable and practical manner. . In particular, since it is possible to manage wandering of patients with dementia, drug addiction, sleepwalking, etc., as well as to manage the patient's sleeping habits, it is possible to provide more detailed treatment and to reduce the burden on doctors and nurses who perform management activities. This has the effect of reducing the amount of labor.
」二記実施例では、各比較回路６と表示手段９と１０く
−ジ
は通信ケーブル８で連絡したが、本発明の第２の実施例
として、回路ユニット７が送信部を有し、表示手段９が
受信部を有する構成として、各比較回路６と表示手段９
とが無線で連絡するようにしてもよく、通信ケーブルを
敷設する手間がかからない一ト、ベッドの移動の際にベ
ッドを自由に移動できるといった効果がある。In the second embodiment, each comparison circuit 6 and the display means 9 and 10 were connected by the communication cable 8, but in the second embodiment of the present invention, the circuit unit 7 has a transmitter and the display means 9 and 10 communicate with each other through the communication cable 8. As a configuration in which the means 9 has a receiving section, each comparison circuit 6 and the display means 9
It is also possible to communicate with each other wirelessly, which has the advantage of eliminating the hassle of laying communication cables and allowing the bed to be moved freely.
また、本発明の第８の実施例として、各比較回＆ｌＦ６
の出力信号を電話回線で表示手段９に伝達するよう回路
ユニット７および表示手段９にそれぞれモデムを有する
構成としてもよく、例えば各家庭における一入幕しの高
齢者等の在床状態をチエツクする等の在宅医療システム
として活用できるといった効果がある。In addition, as an eighth embodiment of the present invention, each comparison time &lF6
The circuit unit 7 and the display means 9 may each have a modem so as to transmit the output signal to the display means 9 via a telephone line, for example, to check the bed status of an elderly person in each household. It has the effect of being able to be used as a home medical care system.
本発明の第４の実施例として、表示手段９が、各比較回
路６の出力信号を記憶する記憶部を有し、前記記憶部の
記憶データを表示する構成としてもよく、例えば各患者
の過去から現在までの時系列データを利用して行動管理
を行なったり、徘徊患者の診断や治療に活用できるとい
った効果があ１１（−ジ
る。As a fourth embodiment of the present invention, the display means 9 may have a storage section that stores the output signals of each comparison circuit 6, and display the stored data of the storage section, for example, the past information of each patient. Time-series data from the present to the present can be used to manage behavior and to diagnose and treat wandering patients.
本発明の第５の実施例として、表示手段９が、各比較回
路６の出力信号があらかじめ定められたある時間以上な
かった場合に警報を発生する警報発生部を有する構成と
してもよく、例えば患者が徘徊したり、ベッド以外の場
所で急病に陥ってベッドに戻れない場合等の緊急事態の
際に迅速な対応が可能になる。As a fifth embodiment of the present invention, the display means 9 may be configured to have an alarm generating part that generates an alarm when the output signal of each comparison circuit 6 is not present for a predetermined period of time or more. This makes it possible to respond quickly in an emergency situation, such as when a person wanders around or suddenly falls ill somewhere other than the bed and is unable to return to the bed.
以上の実施例では各ベッドのマツトレスに圧電素子を配
設したが、敷ふとん、シーツ等に圧電素子を配設して和
風の就寝様式に対応できるような構成としてもよい。In the embodiments described above, piezoelectric elements are provided on the mattresses of each bed, but piezoelectric elements may be provided on mattresses, sheets, etc., to accommodate a Japanese sleeping style.
発明の効果
以上のように本発明の在床モニタ装置によれば次の効果
が得られる。Effects of the Invention As described above, the bed presence monitoring device of the present invention provides the following effects.
すなわち、同時に多人数の在床状態を一括集中して誤動
作なく確実にモニタできるので、病院等の医療施設や高
齢者の養護施設等での患者および在所者の日常的な行動
管理や家庭での家族の就寝管理等が実用的な形で実現可
能となり、従来よりもきめの細かい治療やサービスが可
能になる。さらに、管理行為を行なう側の医師、看護婦
、家族、ヘルパー等の労働量が軽減できるといった効果
もある。In other words, the bed status of many people can be centrally monitored at the same time and reliably monitored without malfunction, making it useful for managing the daily behavior of patients and residents at medical facilities such as hospitals and nursing homes for the elderly, as well as at home. It will become possible to manage the sleeping habits of family members in a practical manner, and it will become possible to provide more detailed treatment and services than before. Furthermore, it has the effect of reducing the amount of labor for doctors, nurses, family members, helpers, etc. who perform management activities.
第１図は本発明の実施例における在床モニタ装置のベッ
ドの斜視図、第２図は同装置のブロック図、第８図ａは
同装置の増幅回路からの出力を示す波形図、第８図すは
第３図ａの拡大波形図、第４図は同装置の積分回路から
の出力を示す波形図である。
１・・・圧電素子、２・・・フィルタ回路、３・・・増
幅回路、４・・・整流回路、５・・・積分回路、６・・
・比較回路、７・・・回路ユニット、８・・・通信ケー
ブル、９・・・表示手段、１０・・・デイスプレィ１１
・・・マツトレス、１２・・・ベッド。FIG. 1 is a perspective view of the bed of a bed monitoring device according to an embodiment of the present invention, FIG. 2 is a block diagram of the device, FIG. 8a is a waveform diagram showing the output from the amplifier circuit of the device, and FIG. The figure is an enlarged waveform diagram of FIG. 3a, and FIG. 4 is a waveform diagram showing the output from the integrating circuit of the same device. DESCRIPTION OF SYMBOLS 1... Piezoelectric element, 2... Filter circuit, 3... Amplifying circuit, 4... Rectifying circuit, 5... Integrating circuit, 6...
- Comparison circuit, 7... Circuit unit, 8... Communication cable, 9... Display means, 10... Display 11
...pine tress, 12...bed.
Claims (5)
る可撓性を有する圧電素子と、前記圧電素子の出力信号
のうち所定の周波数成分のみを通過させるフィルタ回路
と、前記フィルタ回路の出力信号を増幅する増幅回路と
、前記増幅回路の出力信号を整流する整流回路と、前記
整流回路の出力信号を積分する積分回路と、前記積分回
路からの出力信号があらかじめ定められた設定範囲内で
あれば出力を行なう比較回路と、前記フィルタ回路、前
記増幅回路、前記整流回路、前記積分回路、前記比較回
路、前記圧電素子を配設した寝具とを各々に具備した複
数のベッドと、通信手段を介して前記比較回路の出力信
号を表示する表示手段からなる在床モニタ装置。(1) A flexible piezoelectric element disposed in bedding such as a mattress, futon, and sheets, a filter circuit that passes only a predetermined frequency component of the output signal of the piezoelectric element, and an output of the filter circuit. an amplifier circuit that amplifies a signal; a rectifier circuit that rectifies the output signal of the amplifier circuit; and an integration circuit that integrates the output signal of the rectification circuit; a plurality of beds each comprising a comparison circuit for outputting an output if any, the filter circuit, the amplification circuit, the rectification circuit, the integration circuit, the comparison circuit, and bedding provided with the piezoelectric element; and a communication means. A bed presence monitoring device comprising display means for displaying the output signal of the comparison circuit via the comparison circuit.
に伝達する請求項１記載の在床モニタ装置。(2) The bed presence monitoring device according to claim 1, wherein the communication means wirelessly transmits the output signal of the comparison circuit to the display means.
手段に伝達する請求項１記載の在床モニタ装置。(3) The bed presence monitoring device according to claim 1, wherein the communication means transmits the output signal of the comparison circuit to the display means via a telephone line.
部を有し、前記記憶部の記憶データを表示する請求項１
、２または３記載の在床モニタ装置。(4) Claim 1, wherein the display means has a storage section that stores the output signal of the comparison circuit, and displays the data stored in the storage section.
, 2 or 3.
められたある時間以上なかった場合に警報を発生する警
報発生部を有した請求項１、２または３記載の在床モニ
タ装置。(5) The bed occupancy monitoring device according to claim 1, 2 or 3, wherein the display means has an alarm generator that issues an alarm when the output signal of the comparison circuit is not present for a predetermined period of time or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2135891A JP2995801B2 (en) | 1990-05-25 | 1990-05-25 | Floor monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2135891A JP2995801B2 (en) | 1990-05-25 | 1990-05-25 | Floor monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0428344A true JPH0428344A (en) | 1992-01-30 |
| JP2995801B2 JP2995801B2 (en) | 1999-12-27 |
Family
ID=15162219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2135891A Expired - Fee Related JP2995801B2 (en) | 1990-05-25 | 1990-05-25 | Floor monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2995801B2 (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05215863A (en) * | 1992-02-07 | 1993-08-27 | Matsushita Electric Ind Co Ltd | Seat monitor |
| JPH05253211A (en) * | 1992-03-13 | 1993-10-05 | Matsushita Electric Ind Co Ltd | Human body sensing device |
| JPH05253212A (en) * | 1992-03-13 | 1993-10-05 | Matsushita Electric Ind Co Ltd | Alarm device |
| JPH05256955A (en) * | 1992-03-13 | 1993-10-08 | Matsushita Electric Ind Co Ltd | Presence detecting apparatus |
| JPH05312966A (en) * | 1992-03-13 | 1993-11-26 | Matsushita Electric Ind Co Ltd | Presence detector and safety controller |
| JPH06317675A (en) * | 1993-01-13 | 1994-11-15 | Matsushita Electric Ind Co Ltd | Presence detecting device |
| JPH0880286A (en) * | 1994-09-14 | 1996-03-26 | Matsushita Electric Ind Co Ltd | Sleeping device |
| JP2004216006A (en) * | 2003-01-17 | 2004-08-05 | Kinden Corp | Apparatus for determining status of human using ultrasonic vibration sensor and method of determining status of human using the same |
| US7488293B2 (en) | 2003-04-23 | 2009-02-10 | Zoll Medical Corporation | Processing pulse signal in conjunction with accelerometer signal in cardiac resuscitation |
| US7797043B1 (en) | 2001-05-01 | 2010-09-14 | Zoll Medical Corporation | Pulse sensors |
| US7853117B2 (en) | 2005-04-22 | 2010-12-14 | Sony Corporation | Information processing apparatus and method and computer program |
| JP2013031770A (en) * | 2012-11-20 | 2013-02-14 | Akita Prefectural Univ | Intelligent bed-leaving/bed-leaving predicting sensor system |
| CN103371805A (en) * | 2012-04-19 | 2013-10-30 | 株式会社百利达 | Biological signal processor |
| JP2018087801A (en) * | 2016-11-18 | 2018-06-07 | 株式会社リコー | Sensor and sensor system |
-
1990
- 1990-05-25 JP JP2135891A patent/JP2995801B2/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05215863A (en) * | 1992-02-07 | 1993-08-27 | Matsushita Electric Ind Co Ltd | Seat monitor |
| JPH05253211A (en) * | 1992-03-13 | 1993-10-05 | Matsushita Electric Ind Co Ltd | Human body sensing device |
| JPH05253212A (en) * | 1992-03-13 | 1993-10-05 | Matsushita Electric Ind Co Ltd | Alarm device |
| JPH05256955A (en) * | 1992-03-13 | 1993-10-08 | Matsushita Electric Ind Co Ltd | Presence detecting apparatus |
| JPH05312966A (en) * | 1992-03-13 | 1993-11-26 | Matsushita Electric Ind Co Ltd | Presence detector and safety controller |
| JPH06317675A (en) * | 1993-01-13 | 1994-11-15 | Matsushita Electric Ind Co Ltd | Presence detecting device |
| JPH0880286A (en) * | 1994-09-14 | 1996-03-26 | Matsushita Electric Ind Co Ltd | Sleeping device |
| US8064995B1 (en) | 2001-05-01 | 2011-11-22 | Zoll Medical Corporation | Pulse sensors |
| US7797043B1 (en) | 2001-05-01 | 2010-09-14 | Zoll Medical Corporation | Pulse sensors |
| JP2004216006A (en) * | 2003-01-17 | 2004-08-05 | Kinden Corp | Apparatus for determining status of human using ultrasonic vibration sensor and method of determining status of human using the same |
| US7488293B2 (en) | 2003-04-23 | 2009-02-10 | Zoll Medical Corporation | Processing pulse signal in conjunction with accelerometer signal in cardiac resuscitation |
| USRE44187E1 (en) | 2003-04-23 | 2013-04-30 | Zoll Medical Corporation | Processing pulse signal in conjunction with accelerometer signal in cardiac resuscitation |
| USRE45922E1 (en) | 2003-04-23 | 2016-03-15 | Zoll Medical Corporation | Processing pulse signal in conjunction with accelerometer signal in cardiac resuscitation |
| US7853117B2 (en) | 2005-04-22 | 2010-12-14 | Sony Corporation | Information processing apparatus and method and computer program |
| CN103371805A (en) * | 2012-04-19 | 2013-10-30 | 株式会社百利达 | Biological signal processor |
| US8994542B2 (en) | 2012-04-19 | 2015-03-31 | Tanita Corporation | Biological signal processor |
| JP2013031770A (en) * | 2012-11-20 | 2013-02-14 | Akita Prefectural Univ | Intelligent bed-leaving/bed-leaving predicting sensor system |
| JP2018087801A (en) * | 2016-11-18 | 2018-06-07 | 株式会社リコー | Sensor and sensor system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2995801B2 (en) | 1999-12-27 |
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