JP2000155044A - Gas safety device - Google Patents
Gas safety deviceInfo
- Publication number
- JP2000155044A JP2000155044A JP32902998A JP32902998A JP2000155044A JP 2000155044 A JP2000155044 A JP 2000155044A JP 32902998 A JP32902998 A JP 32902998A JP 32902998 A JP32902998 A JP 32902998A JP 2000155044 A JP2000155044 A JP 2000155044A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- ultrasonic sensor
- flow rate
- measurement interval
- safety device
- 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
Landscapes
- Measuring Volume Flow (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガス流量を計測
し、異常流量が計測された場合にはガス通路を遮断し、
ガス使用上の安全性を確保するガス保安装置に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention measures a gas flow rate and shuts off a gas passage when an abnormal flow rate is measured.
The present invention relates to a gas safety device for ensuring safety in using gas.
【０００２】[0002]
【従来の技術】近年、ガスの使用量を計測するガスメー
タに、多量の流量が計測された場合や、通常ではありえ
ないほどの長時間使用があった場合には、異常と判定し
てガス通路を遮断し、安全性を確保する保安装置が内蔵
されたものが普及している。2. Description of the Related Art In recent years, when a gas meter for measuring the amount of gas used has measured a large amount of flow or has been used for an unusually long time, it is determined that an abnormality has occurred and the gas passage is determined. The one with a built-in security device that shuts off and ensures safety is widely used.
【０００３】この種のガス保安装置の流量測定方式で
は、所定の時間内にメータを通過した体積より流量を測
定する膜式メータと、所定の時間間隔で超音波センサを
動作させて瞬時流量を測定するメータが一般的である。[0003] In this type of flow rate measurement system for a gas safety device, a membrane-type meter that measures the flow rate from the volume that has passed through the meter within a predetermined time, and an ultrasonic sensor that operates at a predetermined time interval to measure the instantaneous flow rate. Meters for measuring are common.
【０００４】従来の超音波センサを利用したガス保安装
置を図６にもとづき説明する。通常のガス使用量を測定
する場合、制御回路１から所定の時間間隔で超音波セン
サ駆動回路２に動作信号を送り、超音波センサ３を動作
させて流路４を流れているガスの瞬時流量を測定する。
そして、超音波センサ駆動回路２から返信される瞬時流
量データを基に積算ガス使用量を計測している。また、
計測されたガスの使用量が異常かどうかを制御回路１で
判断し、異常と判断した場合は遮断弁駆動回路５に動作
信号を送信して、遮断弁６を閉じてガスを止める。一般
的にこのようなガス遮断装置は設置場所が屋外であるこ
とや、設置の利便性から電源には電池７が使われてい
る。A conventional gas safety device using an ultrasonic sensor will be described with reference to FIG. When measuring the normal gas consumption, an operation signal is sent from the control circuit 1 to the ultrasonic sensor drive circuit 2 at a predetermined time interval, and the ultrasonic sensor 3 is operated so that the instantaneous flow rate of the gas flowing through the flow path 4 is measured. Is measured.
Then, the integrated gas usage is measured based on the instantaneous flow rate data returned from the ultrasonic sensor drive circuit 2. Also,
The control circuit 1 determines whether or not the measured gas usage is abnormal. If the measured usage is abnormal, an operation signal is transmitted to the shut-off valve drive circuit 5 to close the shut-off valve 6 and stop the gas. In general, such a gas shut-off device uses a battery 7 as a power source because the installation place is outdoors and the installation is convenient.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、ガス保
安装置の設置環境の多様化によって、ガス保安装置自体
を小型化する必要があった。However, with the diversification of the installation environment of the gas security device, it has been necessary to reduce the size of the gas security device itself.
【０００６】[0006]
【課題を解決するための手段】本発明のガス保安装置に
おいては、ガスを流すための流路と、ガスの流量を測定
する超音波センサと、この超音波センサを駆動する超音
波センサ駆動回路と、前記超音波センサを動作させる間
隔を任意に変更できる測定間隔設定手段と、異常時にガ
ス通路を遮断する遮断弁と、前記遮断弁を動作させるた
めの遮断弁駆動回路と、前記遮断弁と前記超音波センサ
を制御する制御回路と、遮断弁と超音波センサと制御回
路に電流を供給する電池を備えたものである。In the gas safety device of the present invention, a flow path for flowing gas, an ultrasonic sensor for measuring the flow rate of gas, and an ultrasonic sensor driving circuit for driving the ultrasonic sensor A measurement interval setting unit that can arbitrarily change an interval at which the ultrasonic sensor is operated, a shutoff valve that shuts off a gas passage when an abnormality occurs, a shutoff valve driving circuit for operating the shutoff valve, and the shutoff valve. A control circuit for controlling the ultrasonic sensor, and a battery for supplying a current to the shutoff valve, the ultrasonic sensor, and the control circuit are provided.
【０００７】この本発明によれば、ガスの使用頻度や環
境変化に合わせて超音波センサによる瞬時流量の測定間
隔を変更できるため、超音波センサの動作回数を減らし
て消費電流を少なくし、電池を小型化することによっ
て、ガス保安装置を小型化できる。According to the present invention, since the measurement interval of the instantaneous flow rate by the ultrasonic sensor can be changed in accordance with the frequency of use of the gas and environmental changes, the number of operations of the ultrasonic sensor is reduced, the current consumption is reduced, and the battery is operated. By reducing the size of the gas security device, the size of the gas security device can be reduced.
【０００８】[0008]
【発明の実施の形態】本発明の第１の手段によるガス保
安装置は超音波センサによる流量の測定間隔を変更でき
るため、測定精度の必要性が低い場合の測定間隔を長く
し、超音波センサの消費電流を減少させ、電池を小型化
することによって、ガス保安装置の小型化を実現したも
のである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The gas safety device according to the first means of the present invention can change the measurement interval of the flow rate by the ultrasonic sensor. By reducing the current consumption of the battery and downsizing the battery, the downsizing of the gas safety device is realized.
【０００９】本発明の第２の手段によるガス保安装置
は、設置後に所定の期間を学習期間とし、ガスの使用実
態を基にガスの異常使用時の遮断レベルを設定する遮断
レベル学習手段と、学習期間中は超音波センサによる流
量の測定間隔を細かくして測定精度を向上させる測定間
隔設定手段を備えることによって、学習中に精度の高い
データが得られるため、学習終了後は測定間隔を長くし
ても安全性を損なうことはない。よって通常使用時の測
定間隔を長くし、超音波センサの消費電流を減少させ、
電池を小型化することによって、ガス保安装置の小型化
を実現したものである。The gas safety device according to the second means of the present invention is a cutoff level learning means for setting a predetermined period after the installation as a learning period, and setting a cutoff level when the gas is abnormally used based on the actual use of the gas; During the learning period, by providing a measurement interval setting unit that improves the measurement accuracy by reducing the measurement interval of the flow rate by the ultrasonic sensor, data with high accuracy can be obtained during learning, so the measurement interval is extended after learning is completed. This does not compromise safety. Therefore, the measurement interval in normal use is lengthened, the current consumption of the ultrasonic sensor is reduced,
By reducing the size of the battery, the size of the gas safety device was reduced.
【００１０】本発明の第３の手段によるガス保安装置は
設置後、所定の期間を学習期間とし、ガスの使用実態を
基にガスの異常使用時の遮断レベルを設定する遮断レベ
ル学習手段と、学習期間中の前半は超音波センサによる
流量の測定間隔を細かくして測定精度を向上させ、学習
期間中の後半はガス未使用時や一度学習したガス使用パ
ターンと同じパターンのガス使用時の測定間隔を長くす
る測定間隔設定手段によって、本発明の第２の手段より
さらに学習中の消費電流を減少させ、電池を小型化する
ことによって、ガス保安装置の小型化を実現したもので
ある。[0010] The gas safety device according to the third means of the present invention is a cutoff level learning means for setting a cutoff level at the time of abnormal use of gas based on the actual use of gas, with a predetermined period as a learning period after installation, In the first half of the learning period, the measurement interval of the flow rate by the ultrasonic sensor is made finer to improve the measurement accuracy, and in the second half of the learning period, the measurement is performed when the gas is not used or when the gas using the same pattern as the gas usage pattern learned once is used. The size of the gas safety device is reduced by further reducing the current consumption during learning by the measurement interval setting means for increasing the interval and reducing the size of the battery as compared with the second means of the present invention.
【００１１】本発明の第４の手段によるガス保安装置
は、学習期間中に一日のガスの使用頻度を時間帯ごとに
計算し、ガスの使用頻度に合わせて超音波センサによる
流量の測定間隔を変える測定間隔設定手段を備えること
によって、ガスをほとんど使用しない時間帯の測定間隔
を長くし、超音波センサの消費電流を減らし、電池を小
型化することによって、ガス保安装置の小型化を実現し
たものである。The gas safety device according to the fourth aspect of the present invention calculates the daily gas usage frequency for each time period during the learning period, and measures the flow rate measurement by the ultrasonic sensor in accordance with the gas usage frequency. By providing a measurement interval setting unit that changes the time, the measurement interval in the time when gas is hardly used is extended, the current consumption of the ultrasonic sensor is reduced, and the size of the battery is reduced, thereby realizing a smaller gas safety device. It was done.
【００１２】[0012]
【実施例】以下、本発明の実施例について図面を用いて
説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１３】（実施例１）図１は本発明の第１の手段に
よるガス保安装置を示す構成図である。基本的な構成は
従来例の説明と同じで、本実施例と従来例との差異は超
音波センサによる流量測定間隔を任意の間隔に変更でき
る測定間隔設定手段８を追加したことである。本発明の
測定間隔設定手段ではガスを使用しない場合や、使用流
量に変化が無い場合など、測定精度があまり必要ない場
合に、測定間隔を長くできる。これによって、超音波セ
ンサ３の動作回数が少なくなり、消費電流が減少するた
め、電池７を小型化できる。(Embodiment 1) FIG. 1 is a configuration diagram showing a gas safety device according to the first means of the present invention. The basic configuration is the same as that of the conventional example. The difference between the present embodiment and the conventional example is that a measurement interval setting means 8 capable of changing the flow rate measurement interval by the ultrasonic sensor to an arbitrary interval is added. The measurement interval setting means of the present invention can lengthen the measurement interval when the measurement accuracy is not very necessary, for example, when no gas is used or when the used flow rate does not change. As a result, the number of operations of the ultrasonic sensor 3 is reduced, and the current consumption is reduced, so that the size of the battery 7 can be reduced.
【００１４】（実施例２）図２は本発明の第２の手段に
よるガス保安装置を示す構成図である。基本的な構成は
従来例の説明と同じで、本実施例と従来例との差異は超
音波センサによる流量測定間隔を任意の間隔に変更でき
る測定間隔設定手段８と、ガスの異常使用時の遮断レベ
ルを設定する遮断レベル学習手段９を追加したことであ
る。遮断レベル学習手段９は従来からよく使われている
手段である。本発明の新規性は、学習中と学習終了後で
超音波センサによる流量の測定間隔を変えることにあ
る。図３は本発明の第２の手段によるガス流量を測定す
るための超音波センサの動作間隔を示したものである。
図のように遮断レベルを設定するための学習期間では測
定間隔を細かくし、測定精度を向上させる。また、学習
終了後は測定間隔を図のように長くし、超音波センサの
動作回数を少なくし、消費電流を減少させることができ
る。(Embodiment 2) FIG. 2 is a structural view showing a gas safety apparatus according to the second means of the present invention. The basic configuration is the same as that of the description of the conventional example. The difference between this embodiment and the conventional example is that the measurement interval setting means 8 that can change the flow measurement interval by the ultrasonic sensor to an arbitrary interval, That is, an interruption level learning means 9 for setting an interruption level is added. The cutoff level learning means 9 is a means that has been frequently used. The novelty of the present invention is to change the measurement interval of the flow rate by the ultrasonic sensor during and after learning. FIG. 3 shows the operation intervals of the ultrasonic sensor for measuring the gas flow rate according to the second means of the present invention.
In the learning period for setting the cutoff level as shown in the figure, the measurement interval is made fine, and the measurement accuracy is improved. After the learning is completed, the measurement interval can be increased as shown in the figure, the number of times of operation of the ultrasonic sensor can be reduced, and the current consumption can be reduced.
【００１５】（実施例３）図４は本発明の第３の手段に
よるガス流量を測定するための超音波センサの動作間隔
を示したものである。本手段では第２の手段で示した学
習期間を二分し、図のように前半では第２の手段と同様
に測定間隔を細かくし、後半ではガス未使用時や一度学
習したガス使用パターンと同じパターンの時の測定間隔
を長くすることによって、第２の手段より消費電流を減
らすことができる。(Embodiment 3) FIG. 4 shows operation intervals of an ultrasonic sensor for measuring a gas flow rate according to the third means of the present invention. In this means, the learning period shown in the second means is divided into two, as shown in the figure, in the first half, the measurement interval is made finer as in the second means, and in the latter half, the same as when the gas is not used or the gas use pattern once learned is used. By increasing the measurement interval at the time of the pattern, the current consumption can be reduced as compared with the second means.
【００１６】（実施例４）図５は本発明の第４の手段に
よるガス流量を測定するための超音波センサの動作間隔
を示したものである。本手段では前記学習期間中に図の
ような一日のガスの使用頻度を時間帯ごとに計算し、ガ
ス使用度数データとして記録する。そして前記データに
基づいてガスを使用する可能性のある時間帯の前後に余
裕を加えた時間帯以外の時間をガス未使用時間帯として
設定する。これが図の斜線部に示した部分である。この
斜線部の時間帯の測定間隔を長くし、超音波センサの動
作回数を減らすことによって、消費電流を減らすことが
できる。(Embodiment 4) FIG. 5 shows operation intervals of an ultrasonic sensor for measuring a gas flow rate according to the fourth means of the present invention. In this means, during the learning period, the usage frequency of the gas as shown in the figure is calculated for each time zone and recorded as gas usage frequency data. Then, based on the data, a time other than a time zone in which a margin is added before and after a time zone in which gas may be used is set as a gas unused time zone. This is the portion indicated by the hatched portions in the figure. The current consumption can be reduced by increasing the measurement interval in the hatched time zone and reducing the number of times the ultrasonic sensor operates.
【００１７】[0017]
【発明の効果】以上のように本発明の第１の手段による
ガス保安装置によれば、超音波センサの動作回数を減ら
すことができるため、消費電流を減らして、電池を小型
化することによって、ガス保安装置を小型化できる。As described above, according to the gas safety device according to the first means of the present invention, the number of times of operation of the ultrasonic sensor can be reduced, so that the current consumption is reduced and the size of the battery is reduced. In addition, the size of the gas security device can be reduced.
【００１８】本発明の第２の手段によるガス保安装置に
よれば、第１の手段による効果に加えて、学習期間中の
測定間隔を細かくすることによって、ガスの異常使用時
の遮断レベルの精度を向上させることができ、安全性が
向上する。According to the gas safety device according to the second means of the present invention, in addition to the effect of the first means, by shortening the measurement interval during the learning period, the accuracy of the shutoff level at the time of abnormal use of gas is improved. Can be improved, and safety is improved.
【００１９】本発明の第３の手段によるガス保安装置に
よれば、第２の手段による効果に加えて、さらに消費電
流を減らすことができ、電池が小型化できる。According to the gas safety device of the third means of the present invention, in addition to the effect of the second means, the current consumption can be further reduced and the battery can be downsized.
【００２０】本発明の第４の手段によるガス保安装置に
よれば、一日のガス使用パターンに合わせて超音波セン
サの動作回数を減らすことができるため、第１の手段と
同様の効果が得られる。According to the gas safety device of the fourth means of the present invention, the number of times of operation of the ultrasonic sensor can be reduced in accordance with the daily gas usage pattern, so that the same effect as the first means is obtained. Can be
【図１】本発明の実施例１におけるガス保安装置を示す
構成図FIG. 1 is a configuration diagram illustrating a gas security device according to a first embodiment of the present invention.
【図２】本発明の実施例２におけるガス保安装置を示す
構成図FIG. 2 is a configuration diagram illustrating a gas safety device according to a second embodiment of the present invention.
【図３】同装置の超音波センサの動作間隔を示す図FIG. 3 is a diagram showing operation intervals of an ultrasonic sensor of the apparatus.
【図４】本発明の実施例３におけるガス保安装置の超音
波センサの動作間隔を示す図FIG. 4 is a diagram showing operation intervals of an ultrasonic sensor of a gas security device according to a third embodiment of the present invention.
【図５】本発明の実施例４におけるガス保安装置の超音
波センサの動作間隔を示す図FIG. 5 is a diagram showing operation intervals of an ultrasonic sensor of a gas security device according to a fourth embodiment of the present invention.
【図６】従来のガス保安装置を示す構成図FIG. 6 is a configuration diagram showing a conventional gas safety device.
１ 制御回路 ２ 超音波センサ駆動回路 ３ 超音波センサ ４ 流路 ５ 遮断弁駆動回路 ６ 遮断弁 ７ 電池 ８ 測定間隔設定手段 ９ 遮断レベル学習手段 DESCRIPTION OF SYMBOLS 1 Control circuit 2 Ultrasonic sensor drive circuit 3 Ultrasonic sensor 4 Flow path 5 Shutoff valve drive circuit 6 Shutoff valve 7 Battery 8 Measurement interval setting means 9 Shutdown level learning means
フロントページの続き (72)発明者 新村 紀夫 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 Ｆターム(参考） 2F035 AA06 DA14 Continued on the front page (72) Inventor Norio Shinmura 1006 Kazuma Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. F-term (reference) 2F035 AA06 DA14
Claims (4)
測定する超音波センサと、この超音波センサを駆動する
超音波センサ駆動回路と、前記超音波センサを動作させ
る間隔を任意に変更できる測定間隔設定手段と、異常時
にガス通路を遮断する遮断弁と、前記遮断弁を動作させ
るための遮断弁駆動回路と、前記遮断弁と前記超音波セ
ンサを制御する制御回路と、前記遮断弁と前記超音波セ
ンサと前記制御回路に電流を供給する電池を備えたガス
保安装置。1. A flow path for flowing a gas, an ultrasonic sensor for measuring a flow rate of a gas, an ultrasonic sensor driving circuit for driving the ultrasonic sensor, and an interval for operating the ultrasonic sensor. A changeable measurement interval setting means, a shutoff valve for shutting off a gas passage when an abnormality occurs, a shutoff valve driving circuit for operating the shutoff valve, a control circuit for controlling the shutoff valve and the ultrasonic sensor, and the shutoff A gas safety device comprising a valve, a battery for supplying current to the ultrasonic sensor and the control circuit.
の遮断レベルを設定する遮断レベル学習手段と、所定の
期間を学習期間とし、学習期間中は超音波センサによる
流量の測定間隔を細かくして測定精度を向上させる測定
間隔設定手段を備えた請求項１記載のガス保安装置。2. An interruption level learning means for setting an interruption level at the time of abnormal use of gas based on the actual use of gas, and a predetermined period as a learning period. 2. The gas safety device according to claim 1, further comprising a measurement interval setting means for making the measurement accuracy fine.
の遮断レベルを設定する遮断レベル学習手段と、所定の
期間を学習期間とし、学習期間中の前半は超音波センサ
による流量の測定間隔を細かくして測定精度を向上さ
せ、学習期間中の後半はガス未使用時や一度学習したガ
ス使用パターンと同じパターンのガス使用時の測定間隔
を長くする測定間隔設定手段を備えた請求項１記載のガ
ス保安装置。3. An interruption level learning means for setting an interruption level at the time of abnormal use of gas based on the actual use of gas, and a predetermined period as a learning period, wherein the first half of the learning period measures the flow rate by an ultrasonic sensor. A measurement interval setting means for improving the measurement accuracy by reducing the interval and increasing the measurement interval in the latter half of the learning period when the gas is not used or when using the same pattern as the gas usage pattern learned once. 2. The gas safety device according to 1.
間帯ごとに計算し、ガスを使用する可能性の低い時間帯
に合わせて流量の測定間隔を変える測定間隔設定手段を
備えた請求項１記載のガス保安装置。4. A measuring interval setting means for calculating a daily gas usage frequency for each time zone during a learning period and changing a flow rate measuring interval in accordance with a time zone in which gas is unlikely to be used. The gas safety device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32902998A JP3473458B2 (en) | 1998-11-19 | 1998-11-19 | Gas security equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32902998A JP3473458B2 (en) | 1998-11-19 | 1998-11-19 | Gas security equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000155044A true JP2000155044A (en) | 2000-06-06 |
| JP3473458B2 JP3473458B2 (en) | 2003-12-02 |
Family
ID=18216813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32902998A Expired - Fee Related JP3473458B2 (en) | 1998-11-19 | 1998-11-19 | Gas security equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3473458B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002139363A (en) * | 2000-10-30 | 2002-05-17 | Yazaki Corp | Flow measuring apparatus |
| JP2010261746A (en) * | 2009-04-30 | 2010-11-18 | Panasonic Corp | Gas shut-off device |
| JP2018054512A (en) * | 2016-09-29 | 2018-04-05 | 大阪瓦斯株式会社 | Energy consumption management system |
-
1998
- 1998-11-19 JP JP32902998A patent/JP3473458B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002139363A (en) * | 2000-10-30 | 2002-05-17 | Yazaki Corp | Flow measuring apparatus |
| JP4698014B2 (en) * | 2000-10-30 | 2011-06-08 | 矢崎総業株式会社 | Flow measuring device |
| JP2010261746A (en) * | 2009-04-30 | 2010-11-18 | Panasonic Corp | Gas shut-off device |
| JP2018054512A (en) * | 2016-09-29 | 2018-04-05 | 大阪瓦斯株式会社 | Energy consumption management system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3473458B2 (en) | 2003-12-02 |
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