JPH11223552A - Human-body detector for inside toilet and its self-diagnosing method - Google Patents
Human-body detector for inside toilet and its self-diagnosing methodInfo
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- JPH11223552A JPH11223552A JP10024326A JP2432698A JPH11223552A JP H11223552 A JPH11223552 A JP H11223552A JP 10024326 A JP10024326 A JP 10024326A JP 2432698 A JP2432698 A JP 2432698A JP H11223552 A JPH11223552 A JP H11223552A
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- Prior art keywords
- human body
- toilet
- body detector
- detector
- light receiving
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- Geophysics And Detection Of Objects (AREA)
- Sanitary Device For Flush Toilet (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
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、病院や老人施設等
のトイレ内における人体の異常の検知や、照明や換気扇
等の機器の制御を行うことができるトイレ内人体検出器
及び人体検出器の自己診断方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a human body detector in a toilet and a human body detector capable of detecting an abnormality of a human body in a toilet such as a hospital or a nursing home and controlling devices such as a lighting and a ventilation fan. It relates to a self-diagnosis method.
【０００２】[0002]
【従来の技術】従来、トイレ内の人体の存在の検知や、
トイレ内での人体の異常時の警報の発生やトイレ内の照
明や換気扇等の機器の制御を行う人体検出器として種々
のものが使用されている。2. Description of the Related Art Conventionally, detection of the presence of a human body in a toilet,
2. Description of the Related Art Various types of human body detectors are used to generate an alarm when a human body is abnormal in a toilet, and to control devices such as lighting and a ventilation fan in the toilet.
【０００３】以下、焦電型赤外線センサを用いてトイレ
内の人体の存在を検知してトイレ内の照明や換気扇等の
機器の制御を行う従来の人体検出器（以下、イ号とい
う）について、図面を用いて説明する。[0003] A conventional human body detector (hereinafter referred to as "A") which detects the presence of a human body in a toilet using a pyroelectric infrared sensor and controls devices such as lighting and a ventilation fan in the toilet will be described below. This will be described with reference to the drawings.
【０００４】図６は焦電型赤外線センサを用いた従来の
人体検出器におけるトイレ内の人体検出を示す説明図で
ある。FIG. 6 is an explanatory diagram showing detection of a human body in a toilet by a conventional human body detector using a pyroelectric infrared sensor.
【０００５】図中、３０はトイレのドア、３１はトイレ
内の照明、３２はトイレ内の換気扇、３３はトイレ内の
便器、３４はトイレのドア３０の手前の天井に設置さ
れ、照明３１及び換気扇３２に接続された人体検出器、
３５は人体検出器３４に内蔵された焦電型赤外線セン
サ、３６は焦電型赤外線センサ３５による検知範囲であ
る。In the figure, reference numeral 30 denotes a toilet door, 31 denotes lighting in the toilet, 32 denotes a ventilation fan in the toilet, 33 denotes a toilet bowl in the toilet, 34 denotes a ceiling light in front of the toilet door 30, and lights 31 and A human body detector connected to the ventilation fan 32,
Reference numeral 35 denotes a pyroelectric infrared sensor built in the human body detector 34, and reference numeral 36 denotes a detection range of the pyroelectric infrared sensor 35.
【０００６】以上のように構成された従来の人体検出器
３４におけるトイレ内の人体検出の動作について説明す
る。The operation of the conventional human body detector 34 configured as above for detecting a human body in a toilet will be described.
【０００７】人体がトイレのドア３０に近づき人体が焦
電型赤外線センサ３５による検知範囲３６にかかると、
人体検出器３４に内蔵された焦電型赤外線センサ３５が
人体の動きを熱変化として検知して電圧を発生させ、発
生した電圧の出力を人体検出器３４内で電気的に処理し
て、照明３１を点灯させるとともに、換気扇３２を回転
させる。あらかじめタイマー設定された時間の経過後、
照明３１が消灯されるとともに、換気扇３２の回転が停
止される。When the human body approaches the toilet door 30 and enters the detection range 36 of the pyroelectric infrared sensor 35,
A pyroelectric infrared sensor 35 incorporated in the human body detector 34 detects the movement of the human body as a heat change to generate a voltage, and the output of the generated voltage is electrically processed in the human body detector 34 for illumination. 31 is turned on and the ventilation fan 32 is rotated. After the elapse of the preset time,
The illumination 31 is turned off and the rotation of the ventilation fan 32 is stopped.
【０００８】次に、特開平１−１２１４２２号公報（以
下、ロ号公報という）に開示された、トイレ内への入室
と退室を検知することによりトイレ内の人体の存在の有
無を検知する焦電型赤外線センサを用いた人体検出器に
ついて、図面を用いて説明する。Next, a method of detecting the presence or absence of a human body in the toilet by detecting entry into and exit from the toilet as disclosed in Japanese Patent Application Laid-Open No. 1-121422 (hereinafter referred to as "B"). A human body detector using an electric infrared sensor will be described with reference to the drawings.
【０００９】図７は焦電型赤外線センサを用いた従来の
人体検出器におけるトイレ内の人体検出を示す説明図で
ある。尚、図６と同様のものには同一の符号を付して説
明を省略する。FIG. 7 is an explanatory view showing detection of a human body in a toilet by a conventional human body detector using a pyroelectric infrared sensor. Note that the same components as those in FIG. 6 are denoted by the same reference numerals and description thereof is omitted.
【００１０】図中、３７はトイレ内の壁面に設置された
人体検出器、３８ａは人体検出器３７に内蔵されトイレ
のドア３０側に向けられた焦電型赤外線センサ、３８ｂ
は人体検出器３７に内蔵され便器３３側に向けられた焦
電型赤外線センサ、３９ａは焦電型赤外線センサ３８ａ
による検知範囲、３９ｂは焦電型赤外線センサ３８ｂに
よる検知範囲である。In the figure, reference numeral 37 denotes a human body detector installed on the wall surface inside the toilet, 38a denotes a pyroelectric infrared sensor built in the human body detector 37 and directed toward the door 30 of the toilet, 38b
Is a pyroelectric infrared sensor built in the human body detector 37 and directed to the toilet 33 side, 39a is a pyroelectric infrared sensor 38a
Is the detection range of the pyroelectric infrared sensor 38b.
【００１１】以上のように構成された従来の人体検出器
３７におけるトイレ内の人体検出の動作について説明す
る。The operation of the conventional human body detector 37 configured as described above for detecting the human body in the toilet will be described.
【００１２】人体がトイレ内に入室して検知範囲３９ａ
に人体がかかると、焦電型赤外線センサ３８ａにより電
圧が出力されるとともに、少なくとも時間差をもって焦
電型赤外線センサ３８ｂによる電圧が出力される。逆に
トイレ内から退室する場合、検知範囲３９ｂに人体がか
かっているため、焦電型赤外線センサ３８ｂにより電圧
が出力されるとともに、少なくとも時間差をもって焦電
型赤外線センサ３８ａにより電圧が出力される。When the human body enters the toilet and the detection area 39a
When a human body is touched, a voltage is output from the pyroelectric infrared sensor 38a and a voltage is output from the pyroelectric infrared sensor 38b at least with a time lag. Conversely, when leaving the toilet, a human body is present in the detection range 39b, so that a voltage is output by the pyroelectric infrared sensor 38b and a voltage is output by the pyroelectric infrared sensor 38a at least with a time lag.
【００１３】以上のように出力される電圧の出力順序を
人体検出器３７で処理することにより、３８ａ→３８ｂ
の順に電圧が出力された場合は入室とみなし、逆に３８
ｂ→３８ａの順に電圧が出力された場合は退室とみな
し、トイレ内の人体の存在の有無を検知する。By processing the output sequence of the voltages output as described above by the human body detector 37, 38a → 38b
If the voltage is output in the order of
If the voltages are output in the order of b → 38a, it is regarded as exit, and the presence or absence of a human body in the toilet is detected.
【００１４】次に、特開昭６２−２１１４３４号公報
（以下、ハ号公報という）に開示された、サーモパイル
を用いてトイレ内の異常を検知する人体検出器につい
て、図面を用いて説明する。Next, a human body detector disclosed in Japanese Patent Application Laid-Open No. 62-21434 (hereinafter referred to as "C") for detecting an abnormality in a toilet using a thermopile will be described with reference to the drawings.
【００１５】図８はサーモパイルを用いた従来の人体検
出器におけるトイレ内の人体検出を示す説明図である。
尚、図６と同様のものには同一の符号を付して説明を省
略する。FIG. 8 is an explanatory view showing detection of a human body in a toilet by a conventional human body detector using a thermopile.
Note that the same components as those in FIG. 6 are denoted by the same reference numerals and description thereof is omitted.
【００１６】図中、４０はトイレ内の天井に埋設された
人体検出器、４１は人体検出器４０に内蔵されたサーモ
パイル、４２はサーモパイル４１による検知範囲であ
り、サーモパイル４１は温度に応じて連続した起電力を
発生する。In the figure, 40 is a human body detector buried in the ceiling in the toilet, 41 is a thermopile built in the human body detector 40, 42 is a detection range by the thermopile 41, and the thermopile 41 is continuous according to temperature. The generated electromotive force is generated.
【００１７】人体検出器４０は以上のように構成されて
いるので、トイレ内に入室して人体がサーモパイル４１
の検知範囲４２にかかると、人体を熱源としてサーモパ
イル４１が連続した起電力を発生するため、検知範囲４
２で検知した平均温度と定常時の温度を比較することに
よりトイレ内の人体の存在の有無を検知する。Since the human body detector 40 is configured as described above, the human body enters the toilet and the human body
In the detection range 42, the thermopile 41 generates a continuous electromotive force using the human body as a heat source.
The presence or absence of a human body in the toilet is detected by comparing the average temperature detected in step 2 with the temperature in a steady state.
【００１８】また、同様の方法でサーモパイル４１の代
わりに超音波センサを使用した人体検出器もあり、人体
を物体の存在として連続的に検知することによりトイレ
内の人体の存在の有無を検知する。There is also a human body detector using an ultrasonic sensor instead of the thermopile 41 in the same manner, and the presence or absence of a human body in the toilet is detected by continuously detecting the human body as the presence of an object. .
【００１９】次に、イ号やロ号公報における人体検出器
３４，３７自体に異常が生じたかどうかの自己診断を行
う場合の従来の自己診断方法について説明する。Next, a conventional self-diagnosis method for performing a self-diagnosis as to whether or not an abnormality has occurred in the human body detectors 34 and 37 in the publications A and B will be described.
【００２０】人体検出器３４，３７の自己診断を行う場
合、人体検出器３４，３７に内蔵された焦電型赤外線セ
ンサ３５，３８ａ，３８ｂの近傍に発熱体を配設し、発
熱体を発熱させて焦電型赤外線センサ３５，３８ａ，３
８ｂで受熱させ、焦電型赤外線センサ３５，３８ａ，３
８ｂからの出力の発生の有無により人体検出器３４，３
７自体の異常の有無の自己診断を行うことができる。When self-diagnosis of the human body detectors 34, 37 is performed, a heating element is disposed near the pyroelectric infrared sensors 35, 38a, 38b built in the human body detectors 34, 37, and the heating elements are heated. And the pyroelectric infrared sensors 35, 38a, 3
8b to receive heat, and pyroelectric infrared sensors 35, 38a, 3
8b, the human body detectors 34, 3
The self-diagnosis of the presence / absence of an abnormality in 7 itself can be performed.
【００２１】また、特開平７−２２５１５３号公報（以
下、ニ号公報という）に開示された、焦電型赤外線セン
サにチョッパを組み合わせた人体検出器では、チョッパ
より外側の焦電型赤外線センサの光学的検知範囲にヒー
ター線を配設し、ヒーター線を加熱することによりヒー
ター線とチョッパの間に生じた温度差で焦電型赤外線セ
ンサから連続した出力を発生させ、一定以上の出力が得
られるかどうかで人体検出器自体の異常の有無の自己診
断を行っている。Further, in the human body detector disclosed in Japanese Patent Application Laid-Open No. 7-225153 (hereinafter referred to as "D"), a pyroelectric infrared sensor and a chopper are combined, a pyroelectric infrared sensor outside the chopper is used. A heater wire is arranged in the optical detection range, and by heating the heater wire, a continuous output is generated from the pyroelectric infrared sensor based on the temperature difference generated between the heater wire and the chopper, and a certain level of output is obtained. The self-diagnosis of whether the human body detector itself is abnormal or not is performed based on whether it is possible.
【００２２】[0022]
【発明が解決しようとする課題】しかしながら、上記従
来の人体検出器は以下の課題を有していた。However, the above-mentioned conventional human body detector has the following problems.
【００２３】イ号に記載の従来の人体検出器３４では、
タイマーで設定された時間が経過すると自動的に照明３
１の消灯と換気扇３２の停止を行うため、タイマーの設
定時間が長すぎるとトイレ内から人体が出ていった後も
照明３１や換気扇３２が作動したままになり、省電力性
に欠ける。また、逆にタイマーの設定時間が短すぎると
人がトイレ内に存在しても照明３１が消え換気扇３２が
停止してしまうという課題を有していた。更に、人体が
トイレ内に入室した際に照明３１が点灯して換気扇３２
が作動するとともに、設定時間経過後に自動的に照明３
１が消灯され換気扇３２が停止されるため、トイレ内か
らの人体の退室を検知できない。In the conventional human body detector 34 described in No. A,
When the time set by the timer elapses, the lighting automatically turns on.
In order to turn off the light 1 and stop the ventilation fan 32, if the set time of the timer is too long, the lighting 31 and the ventilation fan 32 remain operating even after the human body comes out of the toilet, and power saving is lacking. On the other hand, if the setting time of the timer is too short, there is a problem that the lighting 31 is turned off and the ventilation fan 32 is stopped even if a person is present in the toilet. Further, when the human body enters the toilet, the light 31 is turned on and the ventilation fan 32 is turned on.
Is activated and the lighting 3 is automatically turned on after the set time elapses.
Since 1 is turned off and the ventilation fan 32 is stopped, the exit of the human body from the toilet cannot be detected.
【００２４】ロ号公報に記載の人体検出器３７では、例
えばトイレ内で転倒して倒れる等の動きで３８ｂ→３８
ａの順に出力が発生して人体がトイレ内に存在しながら
も、退出した信号が発生する可能性があり、トイレ内で
の異常を検知する人体検出の検知精度に欠ける。In the human body detector 37 described in Japanese Patent Application Laid-Open Publication No. H08-27, 38b → 38 by a motion such as falling down in a toilet, for example.
Although the output is generated in the order of a and the human body is present in the toilet, a withdrawn signal may be generated, and the detection accuracy of the human body detection for detecting an abnormality in the toilet is lacking.
【００２５】ハ号公報に記載のサーモパイルを用いた人
体検出器４０では、最近トイレで多く使用されている暖
房便座を使用している場合、人体との区別をつけること
ができず、トイレ内の人体の存在の有無を検知できな
い。また、検知範囲を暖房便座からずらしたとしてもサ
ーモパイル４１の感度が小さいため環境の温度変化等に
伴う誤動作が発生し易く、信頼性に欠ける。In the human body detector 40 using a thermopile described in Japanese Patent Application Laid-Open Publication No. H08-27139, when using a heated toilet seat that has been frequently used in toilets recently, it cannot be distinguished from the human body, and the toilet inside the toilet cannot be distinguished. The presence or absence of a human body cannot be detected. Further, even if the detection range is shifted from the heating toilet seat, the sensitivity of the thermopile 41 is small, so that a malfunction due to a change in the temperature of the environment or the like easily occurs and the reliability is lacking.
【００２６】更に、人体検出器にサーモパイル４１の代
わりに超音波センサを使用した場合、超音波センサで便
器より高い位置の空間形状の変化を検知することは容易
であるが、便器より低い位置に人が倒れた場合にこれを
検知することは困難であり、トイレ内での異常を検知す
る人体検出の信頼性に欠ける。Further, when an ultrasonic sensor is used instead of the thermopile 41 for the human body detector, it is easy to detect a change in the spatial shape at a position higher than the toilet with the ultrasonic sensor, but at a position lower than the toilet. It is difficult to detect when a person falls down, and the reliability of the human body detection for detecting an abnormality in the toilet is lacking.
【００２７】また、主にトイレ内における人体の異常を
検知する場合、人命にかかわる等の問題から人体検出器
自体の高い耐久性と、人体検出器自体に異常が生じて正
常な検知ができなくなった場合自ら警報を発する自己診
断機能が要求されるが、ニ号公報に記載の焦電型赤外線
センサにチョッパを組み合わせた人体検出器では、焦電
型赤外線センサ自体の診断はできるもののチョッパが異
常な場合でも正常と判断してしまうという問題があると
ともに、チョッパより外側の受光位置に熱源を配置した
場合、検知範囲に内部熱源が入ってしまい、完全な検知
範囲が確保できず、自己診断結果の信頼性に欠ける。ま
た、チョッパは機構部分が存在するため長期の耐久性に
欠け、人体検出器としての信頼性にも欠ける。In addition, when detecting an abnormality of a human body mainly in a toilet, the human body detector itself has high durability due to a problem such as life-threatening, and an abnormality occurs in the human body detector itself, so that normal detection cannot be performed. If a self-diagnosis function that issues an alarm by itself is required, the human body detector described in Japanese Patent Publication No. If the heat source is located at the light receiving position outside the chopper, the internal heat source will enter the detection range, and a complete detection range cannot be secured. Lacks reliability. Further, the chopper lacks long-term durability due to the presence of a mechanical part, and also lacks reliability as a human body detector.
【００２８】本発明はトイレ内の暖房便座の影響を受け
ず、トイレ内における人体の異常な体勢等を検知するこ
とができるとともに、照明や換気扇等の機器の制御もで
き、構成が簡単で人体検出の精度に優れたトイレ内人体
検出器及び、検知範囲を確実に確保でき耐久性に優れる
とともに、自己診断結果の信頼性に優れた人体検出器の
自己診断方法を提供することを目的とする。The present invention can detect an abnormal posture of a human body in a toilet without being affected by a heated toilet seat in the toilet, and can control devices such as a lighting and a ventilation fan. It is an object of the present invention to provide a human body detector in a toilet with excellent detection accuracy and a self-diagnosis method for a human body detector that reliably secures a detection range, has excellent durability, and has excellent reliability of self-diagnosis results. .
【００２９】[0029]
【課題を解決するための手段】上記従来の課題を解決す
るために本発明におけるトイレ内人体検出器は、内部に
焦電素子を有した焦電型赤外線センサと、前記焦電素子
に配設された少なくとも３以上の独立した受光電極と、
少なくともトイレ内に人体が存在する際に前記焦電素子
に赤外線が受光されるのを断続的に遮るチョッパと、を
有し、各前記受光電極が各々異なった検知範囲を有し、
各前記検知範囲がトイレ内の便座位置を含まない構成を
有している。SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, a human body detector in a toilet according to the present invention is provided with a pyroelectric infrared sensor having a pyroelectric element therein and a pyroelectric element provided on the pyroelectric element. At least three or more independent light receiving electrodes,
A chopper that intermittently blocks infrared rays from being received by the pyroelectric element when a human body is present in at least the toilet, and each of the light-receiving electrodes has a different detection range,
Each of the detection ranges does not include a toilet seat position in the toilet.
【００３０】これにより、３以上の独立した受光電極に
よりトイレ内の人体の有無を検知できるとともに、各受
光電極の検知範囲がトイレ内の便座位置を含まないため
暖房便座の暖房の影響を受けることなくトイレ内の人体
の有無を確実に検出できるという作用を有する。Thus, the presence or absence of a human body in the toilet can be detected by three or more independent light receiving electrodes, and the detection range of each light receiving electrode does not include the position of the toilet seat in the toilet. And the presence or absence of a human body in the toilet can be reliably detected.
【００３１】また、本発明における人体検出器の自己診
断方法は、前記チョッパを回転させるとともに前記発熱
素子を発熱する発熱過程と、前記チョッパの回転を停止
させるとともに前記発熱素子への電源供給を停止する停
止過程と、前記焦電型赤外線センサから発生した出力を
処理して自己診断結果の判定を行う判定過程と、を備え
た構成を有している。Further, in the self-diagnosis method for a human body detector according to the present invention, a heating step of rotating the chopper and generating heat of the heating element, stopping rotation of the chopper and stopping power supply to the heating element are provided. And a determination step of processing the output generated from the pyroelectric infrared sensor to determine the result of the self-diagnosis.
【００３２】これにより、人体検出器の異常の有無を自
己診断することができ、人体検出器の異常を事前に発見
することができ、人体検出器の検知精度の信頼性を向上
できるという作用を有する。Thus, the self-diagnosis of the presence or absence of the abnormality of the human body detector can be performed, the abnormality of the human body detector can be detected in advance, and the reliability of the detection accuracy of the human body detector can be improved. Have.
【００３３】[0033]
【発明の実施の形態】本発明の請求項１に記載のトイレ
内人体検出器は、内部に焦電素子を有した焦電型赤外線
センサと、前記焦電素子に配設された少なくとも３以上
の独立した受光電極と、少なくともトイレ内に人体が存
在する際に前記焦電素子に赤外線が受光されるのを断続
的に遮るチョッパと、を有し、各前記受光電極が各々異
なった検知範囲を有し、各前記検知範囲がトイレ内の便
座位置を含まない構成を有している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A human body detector in a toilet according to claim 1 of the present invention comprises a pyroelectric infrared sensor having a pyroelectric element therein, and at least three or more infrared sensors disposed on the pyroelectric element. Independent light-receiving electrodes, and a chopper that intermittently blocks infrared rays from being received by the pyroelectric element at least when a human body is present in the toilet, and each of the light-receiving electrodes has a different detection range. And each of the detection ranges does not include the toilet seat position in the toilet.
【００３４】この構成により、各々異なった検知範囲を
有した３以上の独立した受光電極によりトイレ内の人体
の有無を検知できるとともに、受光電極の検知範囲がト
イレ内の便座を含まないため、暖房便座の熱の影響を受
けることなくトイレ内の人体の有無の検知ができるとい
う作用を有する。According to this configuration, the presence or absence of a human body in the toilet can be detected by three or more independent light receiving electrodes having different detection ranges, and the detection range of the light receiving electrodes does not include the toilet seat in the toilet. It has the effect that the presence or absence of a human body in the toilet can be detected without being affected by the heat of the toilet seat.
【００３５】また、トイレ内に人体が存在しない待機時
にはチョッパを駆動させず、人体の動きを焦電型赤外線
センサで検知した後にチョッパを駆動させ、かつ、人体
がトイレ内から退室後チョッパを停止することにより、
チョッパの駆動を必要最小限にすることができチョッパ
駆動系の耐久性を向上できるという作用を有する。Further, the chopper is not driven during standby when the human body does not exist in the toilet, the chopper is driven after the movement of the human body is detected by the pyroelectric infrared sensor, and the chopper is stopped after the human body leaves the toilet. By doing
There is an effect that the driving of the chopper can be minimized and the durability of the chopper driving system can be improved.
【００３６】本発明の請求項２に記載のトイレ内人体検
出器は、請求項１に記載の発明において、前記焦電型赤
外線センサが前記便座に着座した人体の後頭部上方に設
置され、かつ、前記受光電極の１つが主に人体の正常体
勢時を検知する前記検知範囲を有し、前記受光電極の他
の２つが主に人体の異常体勢時を検知する前記検知範囲
を有し、更に、各前記受光電極が各々対になった補償電
極を備えた構成を有している。According to a second aspect of the present invention, there is provided the human body detector in the toilet according to the first aspect of the present invention, wherein the pyroelectric infrared sensor is installed above a back of a human body sitting on the toilet seat; One of the light receiving electrodes has the detection range for mainly detecting the normal posture of the human body, and the other two of the light receiving electrodes have the detection range for mainly detecting the abnormal posture of the human body, Each of the light receiving electrodes has a pair of compensating electrodes.
【００３７】この構成により、必要最小限の構成で暖房
便座の暖房の影響を受けることなく、人体の存在や体勢
をリアルタイムに検知することができるという作用を有
する。また、補償電極を備えているため、振動や温度変
化等の受光以外の要素による出力の発生を防止し、該人
体検出器の誤動作を防止できるという作用を有する。According to this configuration, the existence and posture of the human body can be detected in real time with the minimum required configuration without being affected by the heating of the heating toilet seat. In addition, the provision of the compensation electrode prevents the output from being generated by factors other than light reception, such as vibration and temperature change, and has the effect of preventing malfunction of the human body detector.
【００３８】本発明の請求項３に記載のトイレ内人体検
出器は、請求項１又は２に記載の発明において、前記焦
電型赤外線センサが信号処理回路基板を介して電気的に
接続された判定用回路基板を有し、前記判定用回路基板
が少なくとも、トイレ内の人体の在室の有無を示す在室
接点出力端子と、設定時間以上のトイレ内の人体の存在
に応じて出力される警報接点出力端子と、該トイレ内人
体検出器の異常を確認して出力される自己診断接点出力
端子と、のいずれか１以上を備えた構成を有している。According to a third aspect of the present invention, in the toilet human body detector according to the first or second aspect, the pyroelectric infrared sensor is electrically connected via a signal processing circuit board. A circuit board for determination, wherein the circuit board for determination is output at least according to the presence contact output terminal indicating presence or absence of a human body in the toilet and the presence of the human body in the toilet for a set time or more. It has a configuration provided with at least one of an alarm contact output terminal and a self-diagnosis contact output terminal that is output after confirming an abnormality of the human body detector in the toilet.
【００３９】この構成により、判定用回路基板の各出力
端子を例えば病院のナースステーション等に接続するこ
とができ、トイレ内の人体の有無やトイレ内での人体の
異常等を検知して外部に知らせる等の広い用途に対応し
て使用できるという作用を有する。With this configuration, each output terminal of the circuit board for determination can be connected to, for example, a nurse station in a hospital, etc., and the presence or absence of a human body in the toilet, the abnormality of the human body in the toilet, and the like are detected and output to the outside. It has the effect that it can be used for a wide variety of uses such as notification.
【００４０】本発明の請求項４に記載のトイレ内人体検
出器は、請求項１乃至３の内いずれか１項に記載の発明
において、前記受光電極から得られる各々の出力の大き
さを比較する比較判定用回路を備えた構成を有してい
る。According to a fourth aspect of the present invention, the human body detector in the toilet according to the first aspect of the present invention compares the magnitude of each output obtained from the light receiving electrodes. And a circuit for comparison and judgment.
【００４１】この構成により、各受光電極から得られる
出力の大きさを比較してトイレ内における人体の体勢を
リアルタイムに判断できるという作用を有する。This configuration has the effect of comparing the magnitude of the output obtained from each light-receiving electrode to determine the posture of the human body in the toilet in real time.
【００４２】本発明の請求項５に記載のトイレ内人体検
出器は、請求項１乃至４の内いずれか１項に記載の発明
において、前記警報接点出力端子に接続された、トイレ
内の人体の在室を検知して動作開始するタイマー回路
と、トイレ内の人体の異常体勢を検知して動作開始する
異常時タイマー回路と、を備えた構成を有している。According to a fifth aspect of the present invention, there is provided a human body detector in a toilet according to any one of the first to fourth aspects, wherein the human body detector in the toilet is connected to the alarm contact output terminal. And a timer circuit for detecting the presence of the person in the toilet and starting operation and an abnormal time timer circuit for detecting the abnormal posture of the human body in the toilet and starting operation.
【００４３】この構成により、タイマー回路又は異常時
タイマー回路により、各タイマーの設定時間を経過して
トイレ内に人体が存在した際に、即座に警報を出すこと
ができるため、トイレ内での人体の異常をより短時間に
検知できるという作用を有する。With this configuration, the timer circuit or the abnormal time timer circuit can immediately issue an alarm when a human body is present in the toilet after the set time of each timer has elapsed. Has the effect of being able to detect abnormalities in a short time.
【００４４】ここで、タイマー回路及び異常時タイマー
回路としては、各々独立した回路で各々の独立してタイ
マー設定時間を調整できるものが用いられる。また、異
常時タイマー回路におけるタイマーの設定時間をタイマ
ー回路におけるタイマーの設定時間より短く設定するの
が好ましい。これにより、より短時間でトイレ内での人
体の異常を検知できるからである。Here, as the timer circuit and the abnormal time timer circuit, those which can adjust the timer setting time independently by using independent circuits are used. Further, it is preferable that the set time of the timer in the abnormal time timer circuit is set shorter than the set time of the timer in the timer circuit. Thereby, abnormality of the human body in the toilet can be detected in a shorter time.
【００４５】本発明の請求項６に記載のトイレ内人体検
出器は、請求項１乃至５の内いずれか１項に記載の発明
において、前記チョッパの近傍でかつ前記受光電極の前
記検知範囲に入らない位置に配設され非接触で前記チョ
ッパを加熱する発熱素子を備えた構成を有している。A human body detector in a toilet according to a sixth aspect of the present invention is the toilet body detector according to any one of the first to fifth aspects, wherein the human body detector is located near the chopper and in the detection range of the light receiving electrode. It has a configuration provided with a heating element that is disposed at a position where it does not enter and that heats the chopper in a non-contact manner.
【００４６】この構成により、チョッパの近傍に配設し
た発熱素子で発熱素子の熱を非接触でチョッパに伝える
ことにより、チョッパと背景との温度差で強制的に焦電
型赤外線センサの出力を得ることができ、定常時の検知
範囲を損なうことなく焦電型赤外線センサ及びチョッパ
の自己診断ができるという作用を有する。According to this configuration, the heat of the heating element is transmitted to the chopper in a non-contact manner by the heating element disposed near the chopper, so that the output of the pyroelectric infrared sensor is forcibly determined by the temperature difference between the chopper and the background. And the self-diagnosis of the pyroelectric infrared sensor and the chopper can be performed without impairing the detection range in a steady state.
【００４７】本発明の請求項７に記載のトイレ内人体検
出器は、請求項１乃至６の内いずれか１項に記載の発明
において、前記発熱素子が、電流に応じて抵抗値を変化
させて電流を自己制御する抵抗素子からなる構成を有し
ている。According to a seventh aspect of the present invention, in the toilet human body detector according to any one of the first to sixth aspects, the heating element changes a resistance value according to an electric current. And a resistance element for self-controlling the current.
【００４８】この構成により、発熱素子の発熱のしすぎ
による機器の発火等を防ぐことができるという作用を有
する。With this configuration, there is an effect that it is possible to prevent the device from being ignited due to excessive heating of the heating element.
【００４９】ここで、発熱素子としては、レイケム社製
のポリスイッチが好適に用いられる。該トイレ内人体検
出器の小型化を図ることができるとともに、低コスト化
を図ることができる。Here, a polyswitch manufactured by Raychem Corporation is preferably used as the heating element. The size of the human body detector in the toilet can be reduced, and the cost can be reduced.
【００５０】本発明の請求項８に記載のトイレ内人体検
出器は、請求項１乃至７の内いずれか１項に記載の発明
において、前記チョッパを回転させるとともに前記発熱
素子を発熱する発熱過程と、前記チョッパの回転を停止
させるとともに前記発熱素子への電源供給を停止する停
止過程と、前記焦電型赤外線センサから発生した出力を
処理して自己診断結果の判定を行う判定過程と、を備え
た構成を有している。The human body detector in the toilet according to the eighth aspect of the present invention is the invention according to any one of the first to seventh aspects, wherein the chopper is rotated and the heating element generates heat. A stopping step of stopping the rotation of the chopper and stopping power supply to the heating element, and a determining step of processing an output generated from the pyroelectric infrared sensor to determine a self-diagnosis result. It has a configuration provided.
【００５１】この構成により、人体検出器の異常の有無
を自己診断することができ、人体検出器の異常を事前に
発見することができ、人体検出器の検知精度の信頼性を
向上できるという作用を有する。With this configuration, it is possible to perform a self-diagnosis of the presence or absence of an abnormality in the human body detector, detect an abnormality in the human body detector in advance, and improve the reliability of the detection accuracy of the human body detector. Having.
【００５２】（実施の形態）以下、本発明におけるトイ
レ内人体検出器の実施の形態について、図面を用いて説
明する。(Embodiment) An embodiment of a human body detector in a toilet according to the present invention will be described below with reference to the drawings.
【００５３】図１は実施の形態におけるトイレ内人体検
出器の要部分解斜視図である。図中、１は実施の形態に
おけるトイレ内人体検出器、２は内部に焦電セラミック
からなる焦電素子が配設された焦電型赤外線センサ、３
は焦電型赤外線センサ２が固定され焦電型赤外線センサ
２の出力の増幅及びバンドパスフィルターによるノイズ
の除去及びＡ／Ｄ変換回路が組み込まれた信号処理回路
基板、４は信号処理回路基板３に電気的かつ機械的に接
続され、信号出力の比較判定を行うマイクロコンピュー
タ回路からなる比較判定用回路，トイレ内の人体の存在
を検知して動作開始するタイマー回路，トイレ内の人体
の異常体勢を検知して動作開始する異常時タイマー回
路，自己診断用タイマー回路，接点出力を駆動する回
路，電源回路等が組み込まれた判定用回路基板、５は判
定用回路基板４に接続されトイレ内に人体が在室してい
る間連続的に接点がＯＮとなる在室接点出力端子、６は
判定用回路基板４に接続され判定用回路基板４上のタイ
マー回路又は異常時タイマー回路で設定した時間以上ト
イレ内に人体が存在又は人体の異常な体勢が継続した際
に接点がＯＮとなる警報接点出力端子、７は判定用回路
基板４に接続されトイレ内人体検出器１自体の異常を確
認した際に接点がＯＮとなる自己診断接点出力端子、８
は判定用回路基板４の下方に接続されたフォトインタラ
プタ、９は判定用回路基板４に固定され内部に焦電型赤
外線センサ２が固定され焦電型赤外線センサ２の対向面
に開口部を有したセンサホルダー、１０は焦電型赤外線
センサ２を固定したセンサホルダー９の下方に配設され
フォトインタラプタ８で回転の制御を行う回転チョッ
パ、１０ａは回転チョッパ１０の円周の半分に立設され
焦電素子に赤外線が受光されるのを断続的に遮る遮蔽
部、１０ｂは回転チョッパ１０の円周の半分に形成され
た開口部、１０ｃは回転チョッパ１０の遮蔽部１０ａ側
の底面に形成されフォトインタラプタ８の透過用ギャッ
プを通過するつば、１１は回転面が回転チョッパ１０の
下面に接着されドライバ回路が判定用回路基板４に組み
込まれたブラシレスモータ、１２ａはセンサホルダー９
に覆設されセンサホルダー９の開口部と対向した面にレ
ンズ用孔を有した前面側シャーシ、１２ｂはブラシレス
モータ１１が取り付けられる底面側シャーシ、１２ｃは
底面側シャーシ１２ｂの両縁部に立設されセンサホルダ
ー９の側面を覆う側面側シャーシ、１３は前面側シャー
シ１２ａのレンズ用孔に固定され表面に反射防止処理が
施された赤外線透過レンズ、１４は側面側シャーシ１２
ｃの内側に回転チョッパ１０の遮蔽部１０ａと対向して
配設された発熱素子である。FIG. 1 is an exploded perspective view of a main part of the human body detector in the toilet according to the embodiment. In the drawing, reference numeral 1 denotes a human body detector in the toilet according to the embodiment, 2 denotes a pyroelectric infrared sensor in which a pyroelectric element made of pyroelectric ceramic is disposed, 3
Is a signal processing circuit board in which the pyroelectric infrared sensor 2 is fixed, the output of the pyroelectric infrared sensor 2 is amplified, noise is removed by a band-pass filter, and an A / D conversion circuit is incorporated. Circuit, which is electrically and mechanically connected to the computer and performs a comparison and determination of signal output, a comparison and determination circuit, a timer circuit for detecting the presence of a human body in the toilet and starting operation, and an abnormal posture of the human body in the toilet An abnormality timer circuit, a timer circuit for self-diagnosis, a circuit for driving a contact output, a circuit circuit for driving a power supply, etc., which detects an abnormality and starts operation. The occupancy contact output terminal 6 whose contact is continuously turned on while the human body is occupied is connected to the circuit board 4 for judgment and a timer circuit or a timer for abnormalities on the circuit board 4 for judgment. An alarm contact output terminal that turns on a contact when a human body is present in the toilet or when an abnormal posture of the human body continues for an amount of time set by the alarm circuit, 7 is connected to the circuit board 4 for determination and a human body detector 1 in the toilet A self-diagnosis contact output terminal that turns on the contact when an abnormality is confirmed.
Is a photointerrupter connected below the circuit board 4 for determination, 9 is fixed to the circuit board 4 for determination, and the pyroelectric infrared sensor 2 is fixed inside and has an opening on the surface facing the pyroelectric infrared sensor 2. The sensor holder 10 is disposed below the sensor holder 9 to which the pyroelectric infrared sensor 2 is fixed, and the rotating chopper 10a for controlling the rotation by the photo-interrupter 8 is provided upright on half of the circumference of the rotating chopper 10. A shielding portion for intermittently blocking infrared rays from being received by the pyroelectric element, an opening portion formed at half of the circumference of the rotary chopper 10, and a shielding portion 10 c formed on the bottom surface of the rotary chopper 10 on the shielding portion 10 a side. A brimless module 11 having a rotating surface adhered to the lower surface of the rotating chopper 10 and a driver circuit incorporated in the circuit board 4 for determination is provided. Data, 12a sensor holder 9
The front chassis 12b has a lens hole on the surface facing the opening of the sensor holder 9, 12b is a bottom chassis to which the brushless motor 11 is attached, and 12c is provided on both edges of the bottom chassis 12b. A side chassis 13 that covers the side of the sensor holder 9, an infrared transmission lens 13 fixed to a lens hole of the front chassis 12 a and having an antireflection treatment on the surface, and 14 a chassis 12
This is a heating element disposed inside c, facing the shielding portion 10a of the rotary chopper 10.
【００５４】ここで、判定用回路基板４に組み込まれた
タイマー回路と異常時タイマー回路は各々独立してお
り、各々任意に時間の設定ができる。また、赤外線透過
レンズ１３は単結晶シリコンで形成されている。Here, the timer circuit incorporated in the determination circuit board 4 and the abnormal-time timer circuit are independent of each other, and the time can be arbitrarily set. Further, the infrared transmission lens 13 is formed of single crystal silicon.
【００５５】また、発熱素子１４と回転チョッパ１０の
距離は０．３ｍｍで形成されており、発熱素子として
は、過剰な電流が流れると自己発熱して抵抗値を増大し
て電流を制御し、加える電圧に依らず約１２０℃に保持
できるものが好適に用いられ、例えばレイケム社製のポ
リスイッチ等が用いられる。The distance between the heating element 14 and the rotary chopper 10 is 0.3 mm. When an excessive current flows, the heating element self-heats to increase the resistance value and control the current. Those capable of maintaining the temperature at about 120 ° C. irrespective of the applied voltage are preferably used. For example, a polyswitch manufactured by Raychem Corporation is used.
【００５６】次に、焦電型赤外線センサ２の内部につい
て、図面を用いて説明する。図２は実施の形態における
トイレ内人体検出器の焦電型赤外線センサに内蔵された
焦電素子上の電極構成を示す正面図である。Next, the inside of the pyroelectric infrared sensor 2 will be described with reference to the drawings. FIG. 2 is a front view showing an electrode configuration on a pyroelectric element incorporated in the pyroelectric infrared sensor of the human body detector in the toilet according to the embodiment.
【００５７】図中、２ａは焦電セラミックからなる焦電
素子、２ｂは焦電素子２ａの受光部分、１５ａは焦電素
子２ａの受光部分２ｂの略中央部に配設された主に正常
な人***置を検知する受光電極、１５ｂは受光電極１５
ａの下方の受光部分２ｂ外の焦電素子２ａ上に配設され
た受光電極１５ａの補償電極、１６ａ，１７ａは受光電
極１５ａの両側の受光部分２ｂに配設された主に異常な
人***置を検知する受光電極、１６ｂ，１７ｂは各々受
光電極１６ａ，１７ａの下方の受光部分２ｂ外の焦電素
子２ａ上に配設された受光電極１６ａ，１７ａの補償電
極である。In the drawing, reference numeral 2a denotes a pyroelectric element made of pyroelectric ceramic, 2b denotes a light receiving portion of the pyroelectric element 2a, and 15a denotes a normally normal light source disposed substantially at the center of the light receiving portion 2b of the pyroelectric element 2a. A light receiving electrode for detecting the position of the human body, 15b is a light receiving electrode 15
The compensation electrode of the light receiving electrode 15a disposed on the pyroelectric element 2a outside the light receiving portion 2b below the light receiving portion 2b, and 16a and 17a are mainly abnormal human body positions disposed on the light receiving portions 2b on both sides of the light receiving electrode 15a. The light receiving electrodes 16b and 17b are compensation electrodes for the light receiving electrodes 16a and 17a disposed on the pyroelectric element 2a outside the light receiving portion 2b below the light receiving electrodes 16a and 17a, respectively.
【００５８】ここで、補償電極１５ｂ，１６ｂ，１７ｂ
は受光電極１５ａ，１６ａ，１７ａが振動や温度変化等
の受光以外の要素で出力を発生するのを防止するための
補償用の電極である。Here, the compensation electrodes 15b, 16b, 17b
Is a compensation electrode for preventing the light receiving electrodes 15a, 16a and 17a from generating an output due to factors other than light reception such as vibration and temperature change.
【００５９】次に、実施の形態におけるトイレ内人体検
出器１の動作について、図面を用いて説明する。Next, the operation of the human body detector 1 in the toilet according to the embodiment will be described with reference to the drawings.
【００６０】図３は実施の形態におけるトイレ内人体検
出器をトイレの壁面に設置した際の人体検知範囲を示す
斜視図であり、図４は実施の形態におけるトイレ内人体
検出器をトイレの壁面に設置した際の人体検知範囲を示
す側面図であり、図５は実施の形態におけるトイレ内人
体検出器をトイレの壁面に設置した際の人体検知範囲を
示す平面図である。FIG. 3 is a perspective view showing a human body detection range when the human body detector in the toilet according to the embodiment is installed on the wall surface of the toilet. FIG. 4 is a diagram showing the human body detector in the toilet according to the embodiment. FIG. 5 is a plan view showing a human body detection range when the human body detector in the toilet according to the embodiment is installed on a wall surface of the toilet.
【００６１】図中、１８はトイレの壁面、１９は壁面１
８の前方に設置されたトイレの便座、２０は焦電型赤外
線センサ２の受光電極１５ａに対応して主にトイレの便
座１９に座った正常な人***置を検知する検知範囲、２
１，２２は焦電型赤外線センサ２の受光電極１６ａ，１
７ａの各々に対応して主にトイレの便座１９からはずれ
た異常な人***置を検知する検知範囲である。In the figure, 18 is the wall surface of the toilet, 19 is the wall surface 1
8, a toilet seat 20 is provided for detecting a normal human body position mainly sitting on the toilet seat 19 corresponding to the light receiving electrode 15a of the pyroelectric infrared sensor 2;
Reference numerals 1 and 22 denote light receiving electrodes 16a and 1 of the pyroelectric infrared sensor 2.
7A is a detection range mainly for detecting an abnormal human body position deviating from the toilet seat 19 corresponding to each of 7a.
【００６２】ここで、トイレ内人体検出器１は床面から
１２０ｃｍの高さのトイレの壁面１８に、図４に示すよ
うに、赤外線透過レンズ１３側の面を下方側に３０°傾
斜させて設置され、受光電極１５ａ，１６ａ，１７ａの
検知範囲２０，２１，２２に便座１９の位置は含まれて
いない。Here, the human body detector 1 in the toilet is provided on the wall surface 18 of the toilet having a height of 120 cm from the floor surface, as shown in FIG. The toilet seat 19 is not included in the detection ranges 20, 21, and 22 of the light receiving electrodes 15a, 16a, and 17a.
【００６３】人体を検知する待機状態では、トイレ内人
体検出器１の回転チョッパ１０の開口部１０ｂが赤外線
透過レンズ１３側を向き、焦電型赤外線センサ２にも電
源が供給されている。In the standby state for detecting a human body, the opening 10 b of the rotary chopper 10 of the human body detector 1 in the toilet faces the infrared transmitting lens 13, and power is also supplied to the pyroelectric infrared sensor 2.
【００６４】ここで、トイレ内に人体が存在しない場
合、回転チョッパ１１と各検知範囲２０，２１，２２の
平均温度との差がほとんどなく、焦電型赤外線センサ２
の出力は極めて微小である。Here, when no human body is present in the toilet, there is almost no difference between the rotating chopper 11 and the average temperatures of the detection ranges 20, 21, 22 and the pyroelectric infrared sensor 2
Is extremely small.
【００６５】次に、人体がトイレ内に入室すると、人体
が検知範囲２０，２１，２２のいずれかに入り、焦電型
赤外線センサ２が検知範囲２０，２１，２２のいずれか
に対応した受光電極１５ａ，１６ａ，１７ａからパルス
的な出力が発生する。発生した出力は信号処理回路基板
３で処理され、判定用回路基板４上のマイクロコンピュ
ータでブラシレスモータ１１のドライバ回路が駆動さ
れ、ブラシレスモータ１１の回転にともない回転チョッ
パ１０の回転が開始される。ついで、人体が便座１９に
座るか、又は便座１９の前に立つと、受光電極１５ａに
対応した検知範囲２０内に確実に人体が入り、焦電型赤
外線センサ２で受光電極１５ａに対応した大きな出力が
得られ、得られた出力を信号処理回路基板３で処理して
判定用回路基板４で人体在室と判定し、在室接点出力端
子５がＯＮになる。Next, when the human body enters the toilet, the human body enters one of the detection ranges 20, 21, 22 and the pyroelectric infrared sensor 2 receives light corresponding to any of the detection ranges 20, 21, 22. A pulse-like output is generated from the electrodes 15a, 16a, 17a. The generated output is processed by the signal processing circuit board 3, the driver circuit of the brushless motor 11 is driven by the microcomputer on the determination circuit board 4, and the rotation of the rotary chopper 10 is started with the rotation of the brushless motor 11. Next, when the human body sits on the toilet seat 19 or stands in front of the toilet seat 19, the human body surely enters the detection range 20 corresponding to the light receiving electrode 15a, and the pyroelectric infrared sensor 2 causes the large size corresponding to the light receiving electrode 15a. An output is obtained, and the obtained output is processed by the signal processing circuit board 3 to determine that the human body is occupied by the determination circuit board 4, and the occupancy contact output terminal 5 is turned on.
【００６６】尚、このとき受光電極１６ａ，１７ａに対
応した検知範囲２１，２２にも人体の一部が入るため、
受光電極１６ａ，１７ａから少なくとも受光電極１５ａ
の出力より明らかに小さい出力が生じる。受光電極１５
ａ，１６ａ，１７ａから得られた出力の大きさが判定用
回路基板４の比較判定用回路で比較され、受光電極１６
ａ，１７ａから得られる出力が受光電極１５ａから得ら
れる出力より小さいため、人体が正常な体勢でトイレ内
に存在すると判定し、判定用回路基板４上のタイマー回
路の動作を開始する。At this time, since a part of the human body also enters the detection ranges 21 and 22 corresponding to the light receiving electrodes 16a and 17a,
From the light receiving electrodes 16a, 17a to at least the light receiving electrode 15a
An output that is clearly smaller than the output of Light receiving electrode 15
a, 16a, and 17a are compared by the comparison / determination circuit of the determination circuit board 4, and the light receiving electrodes 16a, 16a, and 17a are compared.
Since the outputs obtained from a and 17a are smaller than the outputs obtained from the light receiving electrodes 15a, it is determined that the human body is present in the toilet in a normal posture, and the operation of the timer circuit on the determination circuit board 4 is started.
【００６７】また、トイレ内の人体に異常が生じてトイ
レの横壁にもたれかかる、トイレの横床に倒れ込む、ト
イレの前部にずれ落ち横になる、トイレの前床に倒れ込
む等の異常な体勢になった場合、少なくとも人体の一部
が検知範囲２１，２２のうちいずれかに入り、焦電型赤
外線センサ２で検知範囲２１，２２のいずれかに対応し
た受光電極１６ａ，１７ａから大きな出力が発生され、
判定用回路基板４の比較判定用回路で受光電極１６ａ，
１７ａからの出力が受光電極１５ａからの出力より大き
いため、トイレ内の人体が異常な体勢であると判定し、
判定用回路基板４上の異常時タイマー回路の動作を開始
する。In addition, abnormal postures such as abnormalities of the human body in the toilet leaning against the side wall of the toilet, falling down on the floor of the toilet, falling down to the front of the toilet, lying down on the front floor of the toilet, etc. , At least a part of the human body enters one of the detection ranges 21 and 22, and the pyroelectric infrared sensor 2 outputs a large output from the light receiving electrodes 16 a and 17 a corresponding to one of the detection ranges 21 and 22. Generated
The light receiving electrodes 16a,
Since the output from 17a is larger than the output from light receiving electrode 15a, it is determined that the human body in the toilet is in an abnormal posture,
The operation of the abnormal time timer circuit on the determination circuit board 4 is started.
【００６８】ここで、判定用回路基板４のトイレ内の人
体の異常な体勢を判定して動作開始する異常時タイマー
回路のタイマーの設定時間は、トイレ内の人体の存在を
判定して動作開始するタイマー回路のタイマーの設定時
間に比べて極めて短い時間で設定される。尚、トイレ内
の人体が異常な体勢であるという判定は、人体の正常な
動きの中でも過渡的に発生する可能性があるため、異常
時タイマー回路のタイマーの設定時間が短すぎるのも好
ましくない。Here, the setting time of the timer of the abnormal time timer circuit for judging the abnormal posture of the human body in the toilet of the circuit board 4 for judgment is determined by determining the presence of the human body in the toilet. This is set in an extremely short time as compared with the set time of the timer of the timer circuit. It should be noted that the determination that the human body in the toilet is in an abnormal posture may occur transiently even during the normal movement of the human body, so it is not preferable that the setting time of the timer of the abnormal time timer circuit is too short. .
【００６９】次に、連続的にトイレ内に人体が存在して
判定用回路基板４のタイマー回路で設定した時間以上経
過した場合、トイレ内での人体の異常な体勢を検知しな
くても、何らかの異常が発生していると判定し、タイマ
ー回路が接続された警報接点出力端子６がＯＮとなる。
また、トイレ内の人体の異常な体勢が継続し、判定用回
路基板４の異常時タイマー回路で設定した時間以上経過
した場合にも、異常時タイマー回路が接続された警報接
点出力端子６がＯＮとなる。尚、タイマー回路又は異常
時タイマー回路で設定された時間のうち早く時間が経過
した方が優先され、警報接点出力端子６がＯＮとなる。Next, when a human body is continuously present in the toilet and the time set by the timer circuit of the circuit board 4 for determination has elapsed, the abnormal posture of the human body in the toilet is not detected. It is determined that some abnormality has occurred, and the alarm contact output terminal 6 to which the timer circuit is connected is turned on.
Also, when the abnormal posture of the human body in the toilet continues and the time set in the abnormal time timer circuit of the circuit board 4 for determination has elapsed, the alarm contact output terminal 6 to which the abnormal time timer circuit is connected is turned on. Becomes Note that the earlier of the time set in the timer circuit or the abnormal time timer circuit, the priority is given, and the alarm contact output terminal 6 is turned on.
【００７０】ここで、警報接点出力端子６を、例えば病
院内のナースコールシステム等のラインに接続すること
により、ナースステーションに警報が発せられる。Here, an alarm is issued to the nurse station by connecting the alarm contact output terminal 6 to a line such as a nurse call system in a hospital.
【００７１】次に、人体がトイレ内から正常に退室した
場合、検知範囲２０，２１，２２のいずれにも人体が検
知されなくなり、在室接点出力端子５がＯＦＦになる。
更に、判定用回路基板４上のマイクロコンピュータが、
フォトインタラプタ８からの回転チョッパ１０の回転位
置信号に基づいて、ブラシレスモータ１１のドライバ回
路にＯＦＦ信号を送り、回転チョッパ１０の開口部１０
ｂを赤外線透過レンズ１３に向けて回転チョッパ１０の
回転を停止し、再び、人体を検知する待機状態になる。Next, when the human body exits normally from the toilet, no human body is detected in any of the detection ranges 20, 21 and 22, and the occupancy contact output terminal 5 is turned off.
Further, the microcomputer on the circuit board 4 for determination
An OFF signal is sent to the driver circuit of the brushless motor 11 based on the rotation position signal of the rotary chopper 10 from the photo interrupter 8, and the opening 10 of the rotary chopper 10 is
The rotation of the rotary chopper 10 is stopped by directing b to the infrared transmitting lens 13 and the apparatus again enters a standby state for detecting a human body.
【００７２】次に、実施の形態におけるトイレ内人体検
出器１の自己診断方法について説明する。Next, a self-diagnosis method for the human body detector 1 in the toilet according to the embodiment will be described.
【００７３】トイレ内人体検出器１の自己診断では、ま
ず、発熱過程において、判定用回路基板４上のマイクロ
コンピュータにより、自己診断用タイマー回路で設定さ
れた一定時間毎にブラシレスモータ１１のドライバ回路
を通じて強制的に回転チョッパ１０を回転させるととも
に、電源回路を通じて発熱素子１４を発熱させる。In the self-diagnosis of the human body detector 1 in the toilet, first, in the heating process, the microcomputer on the circuit board 4 for judgment uses the driver circuit of the brushless motor 11 at regular intervals set by the timer circuit for self-diagnosis. , The rotary chopper 10 is forcibly rotated, and the heat generating element 14 is caused to generate heat through the power supply circuit.
【００７４】発熱過程で発熱素子１４を発熱し３０秒経
過後、停止過程において、回転チョッパ１０の回転を停
止させるとともに、発熱素子１４への電源の供給を停止
する。After 30 seconds elapses after the heating element 14 generates heat in the heating process, in the stopping process, the rotation of the rotary chopper 10 is stopped, and the supply of power to the heating element 14 is stopped.
【００７５】ここで、発熱素子１４は回転チョッパ１０
と近接しているため、発熱素子１４からの輻射及び空気
中の熱伝導により回転チョッパ１０の温度が、室温に対
し経時的に上昇するとともに、検知範囲２０，２１，２
２の平均温度との差が生じ、焦電型赤外線センサ２が経
時的に増大する出力を発生する。Here, the heating element 14 is a rotary chopper 10
, The temperature of the rotary chopper 10 rises with time with respect to room temperature due to radiation from the heating element 14 and heat conduction in the air, and the detection ranges 20, 21, 22
2 and the pyroelectric infrared sensor 2 generates an output that increases with time.
【００７６】次に、判定過程において、焦電型赤外線セ
ンサ２から発生した出力を信号処理回路基板３で処理
し、判定用回路基板４で予め設定されたしきい値と出力
値を比較して自己診断結果の判定を行い、自己診断接点
出力端子７を制御する。Next, in the determination process, the output generated from the pyroelectric infrared sensor 2 is processed by the signal processing circuit board 3, and the output value is compared with a threshold value preset in the determination circuit board 4. The self-diagnosis result is determined, and the self-diagnosis contact output terminal 7 is controlled.
【００７７】ここで、焦電型赤外線センサ２の出力が、
予め設定されたしきい値を越えない場合、自己診断接点
出力端子７がＯＮになり、焦電型赤外線センサ２，回転
チョッパ１０，発熱素子１４のいずれかの故障を示す警
報が出力される。Here, the output of the pyroelectric infrared sensor 2 is
If the threshold value does not exceed the preset threshold value, the self-diagnosis contact output terminal 7 is turned on, and an alarm indicating a failure of any of the pyroelectric infrared sensor 2, the rotary chopper 10, and the heating element 14 is output.
【００７８】尚、トイレ内人体検出器１の自己診断は、
トイレ内への人体の出入りの可能性の低い深夜に行って
もよく、また、必要に応じて任意の時間に自己診断を行
ってもよい。The self-diagnosis of the human body detector 1 in the toilet
It may be performed at midnight when the possibility of the human body entering or leaving the toilet is low, or the self-diagnosis may be performed at any time as needed.
【００７９】以上のように構成された実施の形態におけ
るトイレ内人体検出器及び人体検知器の自己診断方法に
よれば、以下の作用を有する。According to the human body detector in the toilet and the self-diagnosis method of the human body detector in the embodiment configured as described above, the following operations are provided.
【００８０】焦電型赤外線センサに内蔵された焦電素子
上に検知範囲の異なる独立した３つの受光電極を備え、
各々の受光電極の検知範囲がいずれも便座を含んでいな
いため、焦電型赤外線センサで便座の熱による出力が行
われず、暖房便座の暖房の影響をうけずに、トイレ内の
人体の有無を検知できるという作用を有している。Three independent light receiving electrodes having different detection ranges are provided on a pyroelectric element built in the pyroelectric infrared sensor,
Since none of the detection ranges of the respective light-receiving electrodes include the toilet seat, the pyroelectric infrared sensor does not output due to the heat of the toilet seat, and the presence or absence of a human body in the toilet is not affected by the heating of the heating toilet seat. It has the effect of being able to detect.
【００８１】また、３つの受光電極からの出力の大きさ
を比較判定用回路で比較することにより、トイレ内での
人体の体勢を検知できるとともに、トイレ内の人体の存
在を検知して動作開始するタイマー回路とトイレ内での
人体の異常な体勢を検知して動作開始する異常時タイマ
ー回路の設定時間を組み合わせてトイレ内での人体の異
常を検知して警報を発生させているため、短時間で確実
に人体の異常を検知できるという作用を有する。Further, by comparing the magnitudes of the outputs from the three light receiving electrodes by the comparison and determination circuit, the posture of the human body in the toilet can be detected, and the operation is started by detecting the presence of the human body in the toilet. The combination of the timer circuit that activates and the abnormal time setting of the timer circuit that detects the abnormal posture of the human body in the toilet and starts operation combines the time set in the timer circuit to detect abnormalities in the toilet and generates an alarm. It has the effect of being able to reliably detect abnormalities in the human body over time.
【００８２】また、トイレ内への人体の入室を検知し、
トイレ内に人体が存在する場合にだけブラシレスモータ
を駆動して回転チョッパを回転させるため、ブラシレス
モータや回転チョッパを必要以上に作動させるのを防止
することができるという作用を有する。Further, the detection of the entry of the human body into the toilet,
Since the rotary chopper is rotated by driving the brushless motor only when a human body is present in the toilet, it is possible to prevent the brushless motor and the rotary chopper from being operated more than necessary.
【００８３】また、発熱素子と回転チョッパを近接して
非接触で回転チョッパを加熱しているため、発熱素子が
焦電型赤外線センサの検知範囲外にありながら自己診断
用の出力を得ることができ、自己診断時以外の定常時の
検知範囲を損なうことなく確実に自己診断を行うことが
できるという作用を有する。Further, since the rotary chopper is heated in a non-contact manner by bringing the heating element and the rotary chopper close to each other, it is possible to obtain an output for self-diagnosis even when the heating element is out of the detection range of the pyroelectric infrared sensor. This has the effect that the self-diagnosis can be performed reliably without impairing the detection range in a normal state other than the self-diagnosis.
【００８４】また、発熱素子は特定の温度以上上昇する
ことがないため、通常のヒーターを使用したときに予想
される機器の発熱、発煙、発火等を防ぐことができると
いう作用を有する。Further, since the heating element does not rise above a specific temperature, it has an effect that it is possible to prevent heat generation, smoke generation, ignition and the like of the equipment expected when a normal heater is used.
【００８５】更に、判定用回路基板が、在室接点出力端
子，警報接点出力端子，自己診断接点出力端子の３つの
接点出力端子を有しているため、トイレ内での人体の異
常を確実に検知し、警報等の多くの制御を１台の人体検
知器で行うことができるという作用を有する。Further, since the circuit board for determination has three contact output terminals of the occupancy contact output terminal, the alarm contact output terminal, and the self-diagnosis contact output terminal, the abnormality of the human body in the toilet can be reliably detected. There is an effect that many controls such as detection and warning can be performed by one human body detector.
【００８６】[0086]
【発明の効果】以上のように本発明におけるトイレ内人
体検出器及び人体検出器の自己診断方法によれば、以下
の優れた効果を実現できる。As described above, according to the human body detector in the toilet and the self-diagnosis method of the human body detector in the present invention, the following excellent effects can be realized.
【００８７】請求項１に記載の発明によれば、異なる検
知範囲を有した３以上の独立した受光電極によりトイレ
内の人体の有無を確実に検知できるとともに、受光電極
の検知範囲にトイレ内の便座を含んでいないため、暖房
便座の熱の影響を受けることなくトイレ内の人体の有無
の検知ができ、人体検出の信頼性に優れる。According to the first aspect of the present invention, the presence or absence of a human body in the toilet can be reliably detected by three or more independent light-receiving electrodes having different detection ranges, and the detection range of the toilet within the toilet is detected. Since the toilet seat is not included, the presence or absence of a human body in the toilet can be detected without being affected by the heat of the heating toilet seat, and the reliability of the human body detection is excellent.
【００８８】また、トイレ内に人体が存在しない待機時
にはチョッパを駆動させず、人体の動きを焦電型赤外線
センサで検出した後にチョッパを駆動させ、かつ、トイ
レ内からの人体の退室後チョッパを停止することによ
り、必要以上にチョッパを作動させるのを防止すること
ができチョッパ駆動系の耐久性を向上できるとともに、
チョッパ駆動系の長期信頼性を維持することができ、ま
た、省電力化を図ることができる。In a standby state in which no human body is present in the toilet, the chopper is not driven, the chopper is driven after the movement of the human body is detected by the pyroelectric infrared sensor, and the chopper is removed after the human body leaves the toilet. By stopping, it is possible to prevent the chopper from being operated more than necessary, and to improve the durability of the chopper drive system,
Long-term reliability of the chopper drive system can be maintained, and power can be saved.
【００８９】請求項２に記載の発明によれば、請求項１
の効果に加えて、必要最小限の構成で暖房便座の暖房の
影響を受けることなく、人体の存在や体勢をリアルタイ
ムに検知することができ検知結果の信頼性に優れる。ま
た、補償電極を備えているため、振動や温度変化等の受
光以外の要素による出力の発生を防止し、該人体検出器
の誤動作を防止でき、人体検出の信頼性に優れる。According to the invention described in claim 2, according to claim 1
In addition to the above effects, the presence and posture of the human body can be detected in real time with the minimum required configuration without being affected by the heating of the heating toilet seat, and the reliability of the detection result is excellent. In addition, since a compensation electrode is provided, generation of output due to factors other than light reception such as vibration and temperature change can be prevented, malfunction of the human body detector can be prevented, and human body detection reliability is excellent.
【００９０】請求項３に記載の発明によれば、請求項１
又は２の効果に加えて、判定用回路基板の各出力端子を
例えば病院のナースステーション等に接続することによ
り、トイレ内の人体の有無だけでなくトイレ内での人体
の異常等を検知して外部に知らせる等の用途に使用で
き、人体の異常の連絡等を確実に高い信頼性をもって行
うことができるとともに、トイレの照明、換気扇、暖房
便座、消臭器等のリアルタイムの制御も並行して行うこ
とができ、トイレに関する種々の制御を１台の人体検出
器で行うことができ利便性に優れる。また、自己診断接
点出力端子を備えることにより、該人体検出器の故障を
即座に検知でき該人体検出器の性能の信頼性に優れると
ともに、該人体検出器の故障時にも即座に対応すること
ができ、使用性に優れる。According to the third aspect of the present invention, the first aspect
In addition to the effect of 2, in addition to detecting the presence or absence of a human body in the toilet, by connecting each output terminal of the circuit board for determination to, for example, a nurse station in a hospital, the abnormality of the human body in the toilet can be detected. It can be used for the purpose of notifying outside, etc., and it can reliably communicate abnormalities of the human body etc. with high reliability, and also controls real-time control of toilet lighting, ventilation fans, heating toilet seats, deodorizers, etc. Various controls on the toilet can be performed by one human body detector, which is excellent in convenience. In addition, by providing a self-diagnosis contact output terminal, a failure of the human body detector can be detected immediately, and the reliability of the performance of the human body detector is excellent, and it is possible to immediately respond to a failure of the human body detector. It can be used and is excellent in usability.
【００９１】請求項４に記載の発明によれば、請求項１
乃至３の内いずれか１項の効果に加えて、各受光電極か
ら得られる出力の大きさを比較してトイレ内における人
体の体勢をリアルタイムに判断でき、トイレ内での人体
の異常時に迅速に対応できる。According to the invention set forth in claim 4, according to claim 1,
In addition to the effects of any one of (1) to (3), it is possible to judge the posture of the human body in the toilet in real time by comparing the magnitude of the output obtained from each light receiving electrode, and quickly when the human body is abnormal in the toilet. Can respond.
【００９２】請求項５に記載の発明によれば、請求項１
乃至４の内いずれか１項の効果に加えて、タイマー回路
又は異常時タイマー回路により、各タイマーの設定時間
を経過してトイレ内に人体が存在した際に、即座に警報
を出すことができるため、トイレ内での人体の異常をよ
り短時間に検知でき、トイレ内での人体の異常時に迅速
に対応できる。According to the fifth aspect of the present invention, the first aspect is provided.
In addition to the effects of any one of the above items 4, the timer circuit or the abnormal-time timer circuit can immediately issue an alarm when a human body is present in the toilet after the set time of each timer has elapsed. Therefore, the abnormality of the human body in the toilet can be detected in a shorter time, and it is possible to quickly respond to the abnormality of the human body in the toilet.
【００９３】請求項６に記載の発明によれば、請求項１
乃至５の内いずれか１項の効果に加えて、チョッパの近
傍に発熱素子を配設し、発熱素子の熱を非接触でチョッ
パに伝えることにより、チョッパと背景との温度差で強
制的に焦電型赤外線センサの出力を得ることができ、簡
単な構成で定常時の検知範囲を損なうことなく焦電型赤
外線センサ及びチョッパの自己診断ができる。According to the invention described in claim 6, according to claim 1,
In addition to the effect of any one of the above items 5, the heating element is disposed near the chopper and the heat of the heating element is transmitted to the chopper in a non-contact manner, thereby forcibly due to the temperature difference between the chopper and the background. The output of the pyroelectric infrared sensor can be obtained, and self-diagnosis of the pyroelectric infrared sensor and the chopper can be performed with a simple configuration without impairing the detection range in a steady state.
【００９４】請求項７に記載の発明によれば、請求項１
乃至６の内いずれか１項の効果に加えて、発熱素子が特
定の温度以上上昇することがなく、発熱素子の発熱しす
ぎによる機器の発熱、発煙、発火等を防ぐことができ安
全性に優れる。According to the invention of claim 7, according to claim 1,
In addition to the effect of any one of the above items 6 to 6, the heating element does not rise above a specific temperature, and it is possible to prevent heat generation, smoke generation, ignition, etc. of the device due to excessive heating of the heating element, thereby improving safety. Excellent.
【００９５】請求項８に記載の発明によれば、人体検出
器の異常の有無を自己診断することができ、人体検出器
の自己診断精度に優れるとともに、人体検出器の異常を
事前に発見することができ、人体検出器の精度の信頼性
を向上できる。According to the eighth aspect of the present invention, the presence / absence of an abnormality in the human body detector can be self-diagnosed, the self-diagnosis accuracy of the human body detector is excellent, and the abnormality of the human body detector is found in advance. And the reliability of the accuracy of the human body detector can be improved.
【図１】実施の形態におけるトイレ内人体検出器の要部
分解斜視図FIG. 1 is an exploded perspective view of a main part of a human body detector in a toilet according to an embodiment.
【図２】実施の形態におけるトイレ内人体検出器の焦電
型赤外線センサに内蔵された焦電素子上の電極構成を示
す正面図FIG. 2 is a front view showing an electrode configuration on a pyroelectric element incorporated in the pyroelectric infrared sensor of the human body detector in the toilet in the embodiment.
【図３】実施の形態におけるトイレ内人体検出器をトイ
レの壁面に設置した際の人体検知範囲を示す斜視図FIG. 3 is a perspective view showing a human body detection range when the human body detector in the toilet according to the embodiment is installed on a wall surface of the toilet.
【図４】実施の形態におけるトイレ内人体検出器をトイ
レの壁面に設置した際の人体検知範囲を示す側面図FIG. 4 is a side view showing a human body detection range when the human body detector in the toilet according to the embodiment is installed on a wall surface of the toilet.
【図５】実施の形態におけるトイレ内人体検出器をトイ
レの壁面に設置した際の人体検知範囲を示す平面図FIG. 5 is a plan view showing a human body detection range when the human body detector in the toilet according to the embodiment is installed on a wall surface of the toilet.
【図６】焦電型赤外線センサを用いた従来の人体検出器
におけるトイレ内の人体検出を示す説明図FIG. 6 is an explanatory diagram showing detection of a human body in a toilet by a conventional human body detector using a pyroelectric infrared sensor.
【図７】焦電型赤外線センサを用いた従来の人体検出器
におけるトイレ内の人体検出を示す説明図FIG. 7 is an explanatory diagram showing detection of a human body in a toilet by a conventional human body detector using a pyroelectric infrared sensor.
【図８】サーモパイルを用いた従来の人体検出器におけ
るトイレ内の人体検出を示す説明図FIG. 8 is an explanatory view showing detection of a human body in a toilet by a conventional human body detector using a thermopile.
１ トイレ内人体検出器 ２ 焦電型赤外線センサ ２ａ 焦電素子 ２ｂ 受光部分 ３ 信号処理回路基板 ４ 判定用回路基板 ５ 在室接点出力端子 ６ 警報接点出力端子 ７ 自己診断接点出力端子 ８ フォトインタラプタ ９ センサホルダー １０ 回転チョッパ １０ａ 遮蔽部 １０ｂ 開口部 １０ｃ つば １１ ブラシレスモータ １２ａ 前面側シャーシ １２ｂ 底面側シャーシ １２ｃ 側面側シャーシ １３ 赤外線透過レンズ １４ 発熱素子 １５ａ，１６ａ，１７ａ 受光電極 １５ｂ，１６ｂ，１７ｂ 補償電極 １８ 壁面 １９ 便座 ２０，２１，２２ 検知範囲 ３０ ドア ３１ 照明 ３２ 換気扇 ３３ 便器 ３４，３７，４０ 人体検出器 ３５，３８ａ，３８ｂ 焦電型赤外線センサ ３６，３９ａ，３９ｂ，４２ 検知範囲 ４１ サーモパイル REFERENCE SIGNS LIST 1 Human body detector in toilet 2 Pyroelectric infrared sensor 2a Pyroelectric element 2b Light receiving portion 3 Signal processing circuit board 4 Judgment circuit board 5 In-room contact output terminal 6 Alarm contact output terminal 7 Self-diagnosis contact output terminal 8 Photo interrupter 9 Sensor holder 10 Rotary chopper 10a Shield 10b Opening 10c Collar 11 Brushless motor 12a Front chassis 12b Bottom chassis 12c Side chassis 13 Infrared transmitting lens 14 Heat generating elements 15a, 16a, 17a Light receiving electrodes 15b, 16b, 17b Compensating electrodes 18 Wall 19 Toilet seat 20, 21, 22 Detection range 30 Door 31 Lighting 32 Ventilation fan 33 Toilet bowl 34, 37, 40 Human body detector 35, 38a, 38b Pyroelectric infrared sensor 36, 39a, 39b, 42 Detection range 41 Thermopile
Claims (8)
サと、前記焦電素子に配設された少なくとも３以上の独
立した受光電極と、少なくともトイレ内に人体が存在す
る際に前記焦電素子に赤外線が受光されるのを断続的に
遮るチョッパと、を有し、各前記受光電極が各々異なっ
た検知範囲を有し、各前記検知範囲がトイレ内の便座位
置を含まないことを特徴とするトイレ内人体検出器。1. A pyroelectric infrared sensor having a pyroelectric element therein, at least three or more independent light-receiving electrodes disposed on the pyroelectric element, and at least when a human body is present in a toilet. A chopper that intermittently blocks infrared rays from being received by the pyroelectric element, wherein each of the light receiving electrodes has a different detection range, and each of the detection ranges does not include a toilet seat position in a toilet. A human body detector in a toilet.
した人体の後頭部上方に設置され、かつ、前記受光電極
の１つが主に人体の正常体勢時を検知する前記検知範囲
を有し、前記受光電極の他の２つが主に人体の異常体勢
時を検知する前記検知範囲を有し、更に、各前記受光電
極が各々対になった補償電極を備えていることを特徴と
する請求項１に記載のトイレ内人体検出器。2. The pyroelectric infrared sensor is installed above the back of the head of a human body sitting on the toilet seat, and one of the light receiving electrodes has the detection range for mainly detecting a normal posture of the human body, The other two of the light receiving electrodes have the detection range for mainly detecting an abnormal posture of a human body, and each of the light receiving electrodes has a pair of compensating electrodes. 2. The human body detector in a toilet according to 1.
板を介して電気的に接続された判定用回路基板を有し、
前記判定用回路基板が少なくとも、トイレ内の人体の在
室の有無を示す在室接点出力端子と、設定時間以上のト
イレ内の人体の存在に応じて出力される警報接点出力端
子と、該トイレ内人体検出器の異常を確認して出力され
る自己診断接点出力端子と、のいずれか１以上を備えて
いることを特徴とする請求項１又は２に記載のトイレ内
人体検出器。3. A determination circuit board electrically connected to said pyroelectric infrared sensor via a signal processing circuit board.
The circuit board for determination is at least an occupancy contact output terminal that indicates the presence or absence of a human body in the toilet, an alarm contact output terminal that is output according to the presence of the human body in the toilet for a set time or more, The human body detector in a toilet according to claim 1 or 2, further comprising at least one of a self-diagnosis contact output terminal that is output after confirming an abnormality of the internal human body detector.
きさを比較する比較判定用回路を備えていることを特徴
とする請求項１乃至３の内いずれか１項に記載のトイレ
内人体検出器。4. The human body in a toilet according to claim 1, further comprising a comparison determination circuit for comparing the magnitude of each output obtained from said light receiving electrode. Detector.
レ内の人体の在室を検知して動作開始するタイマー回路
と、トイレ内の人体の異常体勢を検知して動作開始する
異常時タイマー回路と、を備えていることを特徴とする
請求項１乃至４の内いずれか１項に記載のトイレ内人体
検出器。5. A timer circuit connected to the alarm contact output terminal for detecting the presence of a human body in a toilet and starting operation, and an abnormal time timer for detecting an abnormal posture of the human body in the toilet and starting operation. The human body detector in a toilet according to any one of claims 1 to 4, further comprising a circuit.
前記検知範囲に入らない位置に配設され非接触で前記チ
ョッパを加熱する発熱素子を備えていることを特徴とす
る請求項１乃至５の内いずれか１項に記載のトイレ内人
体検出器。6. A heating element disposed in the vicinity of the chopper and at a position outside the detection range of the light receiving electrode, for heating the chopper in a non-contact manner. The human body detector in the toilet according to any one of the above.
化させて電流を自己制御する抵抗素子からなることを特
徴とする請求項１乃至６の内いずれか１項に記載のトイ
レ内人体検出器。7. The toilet according to claim 1, wherein the heating element comprises a resistance element that changes the resistance value according to the current and controls the current self. Human body detector.
熱素子を発熱する発熱過程と、前記チョッパの回転を停
止させるとともに前記発熱素子への電源供給を停止する
停止過程と、前記焦電型赤外線センサから発生した出力
を処理して自己診断結果の判定を行う判定過程と、を備
えていることを特徴とする人体検出器の自己診断方法。8. A heating process for rotating the chopper and generating heat for the heating element, a stopping process for stopping rotation of the chopper and stopping power supply to the heating element, and a process for stopping the pyroelectric infrared sensor. A self-diagnosis method for a human body detector, comprising: a step of processing a generated output to determine a self-diagnosis result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10024326A JPH11223552A (en) | 1998-02-05 | 1998-02-05 | Human-body detector for inside toilet and its self-diagnosing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10024326A JPH11223552A (en) | 1998-02-05 | 1998-02-05 | Human-body detector for inside toilet and its self-diagnosing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11223552A true JPH11223552A (en) | 1999-08-17 |
Family
ID=12135066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10024326A Pending JPH11223552A (en) | 1998-02-05 | 1998-02-05 | Human-body detector for inside toilet and its self-diagnosing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11223552A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093346A (en) * | 2015-05-19 | 2015-11-25 | 南京信息工程大学 | Infrared detection apparatus and method for detecting stationary human body and moving human body |
| CN111766088A (en) * | 2019-04-01 | 2020-10-13 | 台州市质量技术监督检测研究院 | Intelligent closestool detection device and method |
| KR20210014201A (en) * | 2018-06-29 | 2021-02-08 | 킴벌리-클라크 월드와이드, 인크. | Washroom usage decision system |
| CN114108757A (en) * | 2021-12-13 | 2022-03-01 | 中山东菱威力电器有限公司 | Siphoning type human body infrared automatic induction flushing system for toilet |
-
1998
- 1998-02-05 JP JP10024326A patent/JPH11223552A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093346A (en) * | 2015-05-19 | 2015-11-25 | 南京信息工程大学 | Infrared detection apparatus and method for detecting stationary human body and moving human body |
| KR20210014201A (en) * | 2018-06-29 | 2021-02-08 | 킴벌리-클라크 월드와이드, 인크. | Washroom usage decision system |
| US12008885B2 (en) | 2018-06-29 | 2024-06-11 | Kimberly-Clark Worldwide, Inc. | Washroom use determination system |
| CN111766088A (en) * | 2019-04-01 | 2020-10-13 | 台州市质量技术监督检测研究院 | Intelligent closestool detection device and method |
| CN111766088B (en) * | 2019-04-01 | 2022-02-11 | 台州市质量技术监督检测研究院 | Intelligent closestool detection device and method |
| CN114108757A (en) * | 2021-12-13 | 2022-03-01 | 中山东菱威力电器有限公司 | Siphoning type human body infrared automatic induction flushing system for toilet |
| CN114108757B (en) * | 2021-12-13 | 2024-04-05 | 广东威力电器有限公司 | Siphon type human body infrared automatic induction flushing system for toilet |
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