JP2004126935A - Gas circuit breaker - Google Patents

Gas circuit breaker Download PDF

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Publication number
JP2004126935A
JP2004126935A JP2002290093A JP2002290093A JP2004126935A JP 2004126935 A JP2004126935 A JP 2004126935A JP 2002290093 A JP2002290093 A JP 2002290093A JP 2002290093 A JP2002290093 A JP 2002290093A JP 2004126935 A JP2004126935 A JP 2004126935A
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JP
Japan
Prior art keywords
voltage
battery
signal
time
gas
Prior art date
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Pending
Application number
JP2002290093A
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Japanese (ja)
Inventor
Koichi Ueki
植木　浩一
Kaoru Onishi
大西　薫
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Priority to JP2002290093A priority Critical patent/JP2004126935A/en
Publication of JP2004126935A publication Critical patent/JP2004126935A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a gas circuit breaker which decides about voltage abnormality, after confirming battery capacity and a voltage with a battery capacity estimating means, if battery voltage reduction is detected. <P>SOLUTION: The gas shutoff device is constituted, such that the supply voltage of a battery power source means 2 is monitored with a voltage detecting means 10; estimation calculation of the amount of consumption of the battery is performed previously, with a battery capacity estimating means 11, from the driving number of a shutoff means 3 and time elapsed from the start of power source supply, if a signal of or smaller than a predetermined voltage is detected with a voltage detection means, even if the estimated amount of consumption is determined, with the battery capacity estimating means 11, to be within a predetermined range; the voltage detection means 10 is again driven to confirm the voltage of the battery power source means 2 again, if a normal voltage is detected, a voltage reduction signal is not outputted; the voltage detection means 10 is again driven to confirm the battery voltage; and the gas shutoff device comprises a time measuring means 13, which starts to measure concerning predetermined time, if a voltage reduction state is detected with a voltage abnormality deciding means 12, a return means 14 which outputs a signal for returning the shutoff means 3 to a gas supply enabled state, and a return inhibiting means 15 which prohibits return signal input, if a predetermined time has elapsed, according to the time measuring means. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、都市ガスやＬＰガス等を利用するガス器具の使用状態を監視するガス遮断装置において、電池電源の電源容量消耗時の安全性を確保するガス遮断装置に関する。
【０００２】
【従来の技術】
従来のこの種のガス遮断装置は、例えば特許文献１に示されるように図５の構成になっていた。図５は従来のガス遮断装置のブロック図を示す。
【０００３】
図５のガス遮断装置１において、２は電池電源で、ガス遮断装置全体に電源を供給する。３は遮断弁で、流路でのガスの供給を停止したり、供給したりする。
【０００４】
４は電圧低下検出部で、所定の動作保証時間内でガス遮断装置１の動作が可能な電池電源２の容量が残されている消耗状態の電池電圧検知して電圧低下信号Ａを出力する。５は開栓受付部で、電圧低下信号Ａが入力された時から遮断弁の開栓受付を行って、開栓要求（開栓要求スイッチ又は通信による開栓信号の入力）があった時に開栓要求信号を出力する。６はタイマー部で、電圧低下信号Ａが入力された時から所定の動作保証時間をカウントして開栓終了信号Ｄを出力する。
【０００５】
７は開栓機能停止部で、開栓終了信号Ｄが入力されたときに開栓要求信号Ｃによる開栓を停止する閉栓停止信号Ｅを出力する。８はガス遮断制御部で、電池電圧低下信号Ａ又は閉栓停止信号Ｅが入力された時遮断弁３を閉栓動作させ、閉栓停止信号Ｅの入力信号以前に開栓要求信号Ｃが入力された時に遮断弁３を開栓させる。
【０００６】
次に従来例の構成の動作を説明する。電池電源２の消耗度をチェックしている電圧低下検出部４が電池消耗電圧を検出したとき、電圧低下信号Ａを開栓受付部５とタイマー部６とガス遮断制御部８に出力する。電圧低下信号Ａが入力されたガス遮断制御部８は、第一の遮断命令信号Ｂ１を出力して遮断弁３を動作させ、ガス通路の開栓を実行する。タイマー部６は電圧低下信号Ａが入力されるとカウント開始し、このタイマー部６により所定時間のカウント終了する迄の間に、開栓受付部５に開栓要求があり、開栓要求信号Ｃが出力された時には、ガス遮断制御部８は遮断弁３を開栓する。タイマー部６でカウント終了したとき、開栓終了信号Ｄが出力されるので、開栓機能停止部５は閉栓停止信号Ｅを出力して開栓要求の受付を停止する。閉栓停止信号Ｅが入力されたガス遮断装置１は第２の遮断命令信号Ｂ２を出力して遮断弁３を閉栓する。
【０００７】
都市ガス、ＬＰガス等の媒体ガスの流れる流路に取り付けられたガス遮断装置１において、電圧低下検出部４は所定時間間隔毎電池電源２の電圧を測定し電池の消耗度を監視している。予めガス遮断装置１を動作させ得る下限値の電圧を動作保証電圧として設定しておき、ここから所要の日数分逆上った時の電圧値を電池消耗電圧として設定する。電圧低下検出部４は、電池電圧を監視してこの消耗時の電池電圧を検出する。即ち所要日数分だけ電池消耗電圧が検出されてから電池電源２の電圧が動作保証電圧迄低下する期間だけ遮断弁３の開栓が可能としてガス遮断装置１を交換するまでの猶予期間を設けたものである。
【０００８】
【特許文献１】
特開平１０−１０３５４６号公報
【０００９】
【発明が解決しようとする課題】
しかしながら上記従来の構成では下記問題点があった。ガス遮断装置が冬季に入り氷点下等の低温環境となり、更に寒波等による異常低温状態になった時に電池低下検出部４により電池電源手段２の電圧値を検査すると、昼間等の気温の高い時に検査した場合に比較して電圧値が更に低くなる場合があり、電池消費量が少ないのに電圧低下検出部４が所定の消耗状態の電池電圧と誤判定して電圧低下信号Ａを出力しタイマー部６がカウント開始すると共に、ガス遮断制御部８により遮断弁３を駆動しガス供給停止を行うということが想定され、この誤判定の為に例えば需要家がガス器具を使用している場合等、調理中の場合煮炊きが出来ず使い勝手が悪いという問題点がある。
【００１０】
本発明は上記課題を解決するもので、電池電圧の低下状態を検出しても電池消耗による電池低下か、又誤判定による電池低下かを判定し安全を確保しつつ使い勝手を向上させ安全性や信頼性の高いガス遮断装置を提供することを目的としたものである。
【００１１】
【課題を解決するための手段】
この課題を解決するために本発明は、ガス媒体の供給や遮断を行う遮断手段と、電圧検出手段で電源を供給する電池電源手段の供給電圧を監視し、電池容量推定手段で遮断手段の駆動回数及び電源投入時からの経過時間より電池消費量を推定しておき、電池容量推定手段での推定消費容量が所定以内にも係わらず電圧検出手段より所定電圧以下の信号が出力された場合電圧検出手段を駆動し電池電源手段の電圧を再度確認し正常電圧検出時電圧低下信号を出力せず、再度電圧検出手段を駆動し電池電圧を確認し電圧異常判定手段で電圧低下状態を検出時所定時間の計測開始する時間計測手段と、遮断手段をガス供給可能状態に復帰させる信号を出力する復帰手段と、時間計測手段で所定時間経過した場合復帰信号を入力禁止とする復帰禁止手段とからなる構成にしている。
【００１２】
このことにより例えば冬季一時的な異常低温気象等の影響で電圧検出手段により電池電源の供給電圧が所定電圧以下であるのを検出する場合があるが、電池容量の消耗量が小さい期間ならば再度電池確認すると正常電圧が検出されるが、その場合最初に電池電圧検出手段で検出した低下信号は誤信号として電池異常判定手段で時間計測手段に出力しないようにしているので、電池容量が充分ある状態で電池低下と誤判定して時間計測手段で時間計測開始し、又所定時間経過し遮断手段を駆動され遮断状態にしてしまったり、報知手段に誤判定による電池異常表示されることがないので、例えば需要家が煮炊き中に誤判定により時間経過しガス停止されガス使用不可能状態になることはなく使い勝手や信頼性を向上させている。
【００１３】
【発明の実施の形態】
本発明は上記目的を達成するため、電源を供給する電池電源手段と、ガス媒体の供給や遮断を行う遮断手段と、前記電池電源手段の供給電圧を監視し電池電圧を検出する電圧検出手段と、前記遮断手段の駆動回数及び電源供給開始からの経過時間より電池消費量を推定する電池容量推定手段と、前記電池容量推定手段の消費容量が所定以内で前記電圧検出手段より所定電圧以下の信号が出力された場合再度前記電圧検出手段を駆動し低電圧検出時電圧低下信号を出力する電圧異常判定手段と、前記電圧異常判定手段で電圧低下状態を検出時所定時間計測開始し所定時間経過後前記遮断手段に遮断出力する時間計測手段と、前記遮断手段をガス供給可能状態に復帰させる信号を出力する復帰手段と、前記時間計測手段で所定時間経過した場合復帰信号を入力禁止とする復帰禁止手段とからなる。
【００１４】
そして電池消費量が小さくまだ充分電池容量があるのに異常低温気象等の影響で電圧検出手段により電池電源の供給電圧が所定電圧以下であるのを検出された場合、報知手段で異常表示されたり、ガス事業者等に異常通知されるのを防ぐ為に、電池電源手段の電源供給開始後の時間や最も電池容量を消費する遮断手段の遮断・復帰回数等より電池容量推定手段で消費量計算し残電池容量を推定し、所定消費量以内の場合電圧検出手段が電池低下信号を出力しても再度電圧検出手段を駆動しその結果正常電圧検出時、最初の電池低下検出を誤信号と判定し、時間計測手段での時間計測を停止状態に保持し遮断手段を駆動しないようにし、需要家がガスストーブ等を使用し暖房中に誤判定により時間経過しガス停止されガス使用不可能状態になることはなく信頼性が高まり使い勝手が向上している。
【００１５】
更に本発明は上記目的を達成するため、電源を供給する電池電源手段と、ガス媒体の供給や遮断を行う遮断手段と、前記電池電源手段の供給電圧を監視し電池電圧を検出する電圧検出手段と、前記遮断手段の駆動回数及び電源供給開始からの経過時間より電池消費量を推定する電池容量推定手段と、前記電池容量推定手段の消費容量が所定量以内で前記電圧検出手段より所定電圧以下の信号が出力された場合前記電圧検出手段からの電池電圧低下信号を誤信号と判定し電池消費容量が所定量以上の場合電池低下と判定出力する電圧異常判定手段と、前記電圧異常判定手段で電圧低下状態を検出時所定時間計測し所定時間経過後前記遮断手段に遮断出力する時間計測手段と、前記遮断手段をガス供給可能状態に復帰させる信号を出力する復帰手段と、前記時間計測手段で所定時間経過した場合復帰信号を入力禁止とする復帰禁止手段とからなる。
【００１６】
そして電池消費量が小さくまだ充分電池容量があるのに異常低温気象等の影響で電圧検出手段により電池電源の供給電圧が所定電圧以下であるのを検出された場合、報知手段で異常表示されたり、ガス事業者等に異常通知されるのを防ぐ為に、電池電源手段の電源供給開始後の時間や最も電池容量を消費する遮断手段の遮断・復帰回数等より電池容量推定手段で消費量計算し残電池容量を推定し、所定消費量以内の場合電圧検出手段が電池低下信号を出力しても誤信号と判定し、時間計測手段での時間計測を停止状態に保持し遮断手段を駆動しないようにし、需要家がガスストーブ等を使用し暖房中に誤判定により時間経過しガス停止されガス使用不可能状態になることはなく信頼性が高まり使い勝手が向上している。
【００１７】
更に本発明は上記目的を達成するため、電源を供給する電池電源手段と、ガス媒体の供給や遮断を行う遮断手段と、前記電池電源手段の供給電圧を監視し電池電圧を検出する電圧検出手段と、前記遮断手段の駆動回数及び電源投入時からの経過時間より電池消費量を推定する電池容量推定手段と、前記電池容量推定手段の消費容量が所定以内の場合前記電圧検出手段より所定電圧以下の信号が出力されても再度前記電圧検出手段を駆動し正常電圧検出時再度前記電圧検出手段を駆動し低電圧検出時電圧低下信号を出力する電圧異常判定手段と、前記電圧異常判定手段で電圧低下状態と判定時所定時間計測開始する時間計測手段と、前記遮断手段をガス供給可能状態に復帰させる信号を出力する復帰手段と、ガス供給量を計測する流量検出手段と、ガス漏れや地震などの異常状態を検出する外部機器手段と、前記流量検出手段や前記外部機器手段からの信号より異常なガス器具の使用状態かを判定し異常使用と判定時遮断信号を出力する異常判定手段と、前記時間計測手段で時間計測中前記流量検出手段で異常流量を検出したり又前記外部機器手段により異常ガス漏れや所定以上の地震検知した場合前記遮断手段に遮断信号を出力すると共に復帰信号を入力禁止とする復帰禁止手段とからなる。
【００１８】
そして電池電源による電源供給開始からの時間が短くても何らかの原因で、例えば雨水等が浸水してきて電池を消耗することがあるが、このような状況下で異常低温気象等の影響で電圧検出手段により電池電源の供給電圧が所定電圧以下であるのを検出された場合、電池電源手段の電源供給開始後の時間や最も電池容量を消費する遮断手段の遮断・復帰回数等より電池容量推定手段で消費量計算し残電池容量を推定し、所定消費量以内と判定された場合電圧検出手段が電池低下信号を出力しても再度電圧検出手段を駆動しその結果低電圧状態を検出するが、その電圧低下状態により時間計測手段が時間計測開始し所定時間中、異常な流量を検出した時或いはガス漏れや異常に大きい地震等を検出すると遮断手段を駆動しガス供給停止し復帰不可能とし、即ち再度ガス供給不可能とするので、何度も需要家がガスストーブ等を長時間継続使用するような異常な使われ方を繰返しされ電池消耗がすすむのを防止し、結果ガス漏れ異常で遮断条件が成立しているのにガス停止不可能状態になるのを防ぎ、安全性や信頼性が高まり使い勝手が極めて向上する。
【００１９】
更に本発明は上記目的を達成するため、電源を供給する電池電源手段と、ガス媒体の供給や遮断を行う遮断手段と、前記電池電源手段の供給電圧を監視し電池電圧を検出する電圧検出手段と、前記遮断手段の駆動回数及び電源供給開始からの経過時間より電池消費量を推定する電池容量推定手段と、前記電池容量推定手段の消費容量が所定以内で前記電圧検出手段より所定電圧以下の信号が出力された場合再度前記電圧検出手段を駆動する信号を出力すると共低電圧検出時電圧低下信号を出力する電圧異常判定手段と、前記電池異常判定手段で再度前記電圧電圧検出手段を駆動する信号を出力されると所定時間遅延後前記電圧検出手段に駆動信号を出力する時間遅延手段と、前記電圧異常判定手段で電圧低下状態を検出時所定時間計測開始し所定時間経過後前記遮断手段に遮断出力する時間計測手段と、前記遮断手段をガス供給可能状態に復帰させる信号を出力する復帰手段と、前記時間計測手段で所定時間経過した場合復帰信号を入力禁止とする復帰禁止手段とからなる。
【００２０】
そして電池消費量が小さくまだ充分電池容量があるのに異常低温気象等の影響で電圧検出手段により電池電源の供給電圧が所定電圧以下であるのを検出された場合、報知手段で異常表示されたり、ガス事業者等に異常通知されるのを防ぐ為に、電池電源手段の電源供給開始後の時間や最も電池容量を消費する遮断手段の遮断・復帰回数等より電池容量推定手段で消費量計算し残電池容量を推定し、所定消費量以内の場合電圧検出手段が電池低下信号を出力すると、再度電圧検出手段を駆動する信号が出力されるが、その信号で時間遅延手段が作動し一定時間経過後電圧検出手段を駆動するので、電圧低下信号を検出した時間帯よりずれて、電池電圧を検出するので結果電池容量が充分残っている場合正常電池電圧を検出するので、最初の電池低下検出を誤信号と判定し、時間計測手段での時間計測を停止状態に保持し遮断手段を駆動しないようにし、需要家がガスストーブ等を使用し暖房中に誤判定により時間経過しガス停止されガス使用不可能状態になることはなく信頼性が高まり使い勝手が向上している。
【００２１】
更に本発明は上記目的を達成するため、電源を供給する電池電源手段と、ガス媒体の供給や遮断を行う遮断手段と、前記電池電源手段の供給電圧を監視し電池電圧を検出する電圧検出手段と、前記遮断手段の駆動回数及び電源供給開始からの経過時間より電池消費量を推定する電池容量推定手段と、前記電池容量推定手段の消費容量が所定以内で前記電圧検出手段より所定電圧以下の信号が出力された場合再度前記電圧検出手段を駆動する信号を出力すると共低電圧検出時電圧低下信号を出力する電圧異常判定手段と、前記電池異常判定手段で再度前記電圧電圧検出手段を駆動する信号を出力される毎に前記電圧検出手段を駆動する時間を可変しつつ前記電圧検出手段を駆動信号を出力する遅延時間可変手段と、前記電圧異常判定手段で電圧低下状態を検出時所定時間計測開始し所定時間経過後前記遮断手段に遮断出力する時間計測手段と、前記遮断手段をガス供給可能状態に復帰させる信号を出力する復帰手段と、前記時間計測手段で所定時間経過した場合復帰信号を入力禁止とする復帰禁止手段とからなる。
【００２２】
そして電池消費量が小さくまだ充分電池容量があるのに冬季異常低温気象等が継続すると電圧検出手段により電池電源の供給電圧が所定電圧以下であるのを検出された場合、報知手段で異常表示されたり、ガス事業者等に異常通知されるのを防ぐ為に、電池電源手段の電源供給開始後の時間や最も電池容量を消費する遮断手段の遮断・復帰回数等より電池容量推定手段で消費量計算し残電池容量を推定し、所定消費量以内の場合電圧検出手段が電池低下信号を出力すると、再度電圧検出手段を駆動し正確に電池電圧を計測するために、電圧異常判定手段より電圧駆動信号が出力される毎その信号で遅延時間可変手段が作動しそのたび毎に異なった時間帯で電圧検出手段を駆動するので、即ち低下電圧信号が入力される毎遅延時間可変手段が電圧検出手段を駆動する迄の時間を可変して再判定するので電池容量が充分残っている場合１日の平均的な駆動能力のレベルを判定することができ正確に電池電圧を計測でき結果正常電池電圧を検出するので、最初の電池低下検出を誤信号と判定し、時間計測手段での時間計測を停止状態に保持し遮断手段を駆動しないようにし、需要家がガスストーブ等を使用し暖房中に誤判定により時間経過しガス停止されガス使用不可能状態になることはなく信頼性が高まり使い勝手が向上している。
【００２３】
【実施例】
以下、本発明の第１、第２、第３、第４及び第５の実施例を図１、図２、図３、図４、図５及び図６を参照して説明する。図１、図２、図３、図４、図５において、図６と同一機能を有する構成要素に関しては同一番号を付した。
【００２４】
（実施例１）
図１は本発明の第１の実施例のガス遮断装置で、９はガス遮断装置の制御手段で、１０は電圧検出手段で電池電源手段２の電池電圧を計測する。即ち、電池電源手段２の出力電圧を監視し、所定値以上の電圧検出時は正常信号を、又所定値以下に電圧低下しているのを検出すると電圧低下信号を出力する。１１は電池容量推定手段で、電池電源手段２による電源供給開始からの経過時間と予め記憶設定されている制御手段９の平均消費電流とから電池消費量を計算する。又遮断手段３の遮断や復帰の駆動回数と平均消費電流とから消費量を計算し制御手段９での消費量と合算する。１２は電池異常判定手段で、電池容量推定手段１１からの電池容量推定値と電圧検出手段１０からの電圧計測値から電池電圧が正常か、低下状態かを判定し、第１回目の低下と判定時再度電圧検出手段１０を駆動し電池電圧を計測し、再度電池電圧低下状態ならば電圧低下信号を出力し、正常電圧ならば正常信号を出力する。１３は時間計測手段で、電圧低下信号を入力すると時間計測開始し、所定時間経過後遮断手段３を駆動する信号を出力する。即ち、電池電圧低下以降のガス遮断装置の使用可能時間のカウントを開始する。つまりガス器具の使用状態の安全監視を正常な電圧範囲で行える時間のカウントを行う。
【００２５】
１４は復帰手段で、操作されると遮断手段３にガス供給開始するため遮断手段３の復帰信号を出力する。１５は復帰禁止手段で、復帰手段１３からの復帰信号を遮断手段３に出力するか否か判定し、復帰禁止状態でなければ出力し、遮断手段３を開放状態にする。時間計測手段１３は、時間計測手段１８で使用可能時間を計測完了すると、即ち所定時間が経過すると復帰禁止手段１４に復帰手段１３からの復帰指示信号入力を禁止し、遮断手段３が遮断状態のままであるのを維持する。一方、電池電圧低下信号が時間計測手段１８に出力され、時間計測手段１８で所定時間に達する前に、異常判定手段１２より遮断手段３に遮断信号が出力されると共に、復帰禁止手段１４に遮断信号が入力されると復帰禁止手段１４では以降復帰手段１３からの遮断手段３の復帰信号を受け付けず、遮断状態に保持する。１６は報知手段で、電池異常判定手段１２で電池低下異常を検出すると警告表示を行うと共に、時間計測手段１３が所定時間経過し遮断手段３を駆動すると表示（ＬＣＤやＬＥＤ素子等）を行いガス利用者やガス事業者に通知したり、或いは通信回線を用いてガス保安センターなどに通知する。
【００２６】
次に上記構成の動作を説明する。ガス遮断装置が設置されガス需要家のガス器具使用状態を監視する。電池電源手段２が電源供給開始すると電池容量推定手段１１はその経過時間と制御装置９の平均電流とから電池容量の消費量を計算する。
【００２７】
途中遮断手段３が作動すると大電流が流れるので、作動毎消費量に加算していく。このようにして電池容量の消耗量を推定する。一方電圧検出手段１０は定期的に電池電源手段２の電圧監視を行う。所定電圧以下の場合電圧低下信号を電圧異常判定手段１２に出力する。又所定電圧値以上の場合、電池異常判定手段１２に正常信号を出力する。電圧異常判定手段１２は、電池容量推定手段１１からの電池容量消費量と電圧検出手段１０からの電圧信号とから、電圧低下異常状態かどうかを判定する。
【００２８】
冬場の寒波等の異常気象下で電圧検出手段１０が電圧低下状態を検出することがある。電圧検出手段１０は定期的に作動し電池電源手段２の能力を計測するが、時間があいて計測しに行くと前述のことが起きることがある。電圧検出手段１０から電圧低下信号が出力されると、電池異常判定手段１２は電池容量推定手段１１の電池容量が所定値以上消耗しているかを判定する。設置後数年等の場合、即ち電池消耗量が小さい場合電圧検出手段１０を再度駆動する信号を出力する。電圧検出手段１０は、再駆動信号を入力すると電池電圧をチェックする。その結果、正常電圧を検出すると、つまり所定値以上の電圧値を検出すると正常信号が電圧異常判定手段１２出力される。この場合、最初の電圧検出手段１０からの電圧低下信号は誤信号と判定し、一過性の異常気象などに伴う誤判定信号で電圧異常とは判定しない。時間計測手段１３はそのまま停止状態を維持する。
【００２９】
一方、何らかの原因で遮断手段３の作動回数（遮断や復帰の合計回数）、経過時間より電池消費容量が少なくて、雨水などの浸水で電圧低下に至ることがあるが、こうした時電圧検出手段１０が低下信号を検出し電圧異常判定手段１２に出力され、再度電圧検出手段１０を駆動し、電池電圧を確認しても電圧低下信号を再度出力する場合がある。このように２度目の場合、電圧異常判定手段１２は電圧低下状態と判定し、時間計測手段１３に電圧低下状態信号を出力し、時間計測開始する。又復帰禁止手段１５にも通知する。更に報知手段１６に電池電圧低下状態の警告表示を行う（電池低下状態の表示をＬＣＤ素子やＬＥＤ素子等で行う）。
【００３０】
更にガス供給事業者に電話回線などを通じて電池低下異常状態を通報する。時間計測手段１８は電池低下状態を検出すると時間カウントを行い電池電圧低下以降のガス遮断装置の使用可能時間を計測する。所定時間カウントすると復帰禁止手段１４に復帰手段１３からの信号受付を禁止状態にすると共に遮断手段３に遮断出力を行う。このことにより以降ガス供給停止を図ることによりガス遮断装置の安全使用可能時間を経過したことを通知する。この状態で復帰手段１４からの遮断状態からの復帰させようとする復帰信号の受付を禁止し、ガス供給停止状態を維持する。報知手段１６を介して以降ガス遮断装置自体を交換しない限りガス供給できない旨を需要家並びにガス供給事業者に通知する。
【００３１】
ここで、電池電源手段２の電圧を一過性の異常低温等の気象環境下で電圧検出手段１０で電池電圧検出すると、電池容量が充分あるのに電圧低下と誤判定する場合がある。誤判定すると時間計測手段１６を計測開始したり、その間放置して所定時間経過すると遮断手段３に遮断信号が出力され電池電圧低下遮断状態となり復帰禁止となるが、誤信号でこのようになるのを防止する必要がある。電圧異常判定手段１２でいきなり時間計測手段１３を作動開始させずに、再度電圧検出手段１０を駆動し、電池電圧を再度確認することにより、正常値を検出時誤信号と判定し電圧低下異常と誤判定しないようにする。
【００３２】
このようにして電池容量が充分あるのに異常低温などの環境要因によりガス遮断装置の電池電源が電圧検出手段１５により所定値以下として誤検出された場合、再度電池電圧確認を行い防止するので、ガス事業者は不要にガス遮断装置を交換することなく、又不要出動回数を減らすことができ安全性や使い勝手が極めて向上する。
【００３３】
（実施例２）
図２は本発明の第２の実施例のガス遮断装置である。図２において、図１、図３、図４、図５及び図６と同一機能を有する構成要素には同一番号を付し説明は省略する。
【００３４】
図２は本発明の第２の実施例のガス遮断装置で、１２の電圧異常判定手段に、電圧検出手段１０と電池容量推定手段１１との出力が入るように接続され、電圧検出手段１０が電池電圧低下信号を検出しても、電池容量推定手段１１から電池容量が充分残っている状態を示す信号が出力されているならば、電圧検出手段１０からの電圧低下信号は号信号と判定しかつ電池電源手段２の電圧レベルは正常と判定し、時間計測手段１３や、復帰禁止手段１５や、報知手段１６に正常信号を出力し、警告表示等を行わないようにしている。
【００３５】
次に上記構成の動作を説明する。ガス遮断装置が設置されガス需要家のガス器具使用状態を監視する。電池電源手段２が電源供給開始すると電池容量推定手段１１はその経過時間と制御装置９の平均電流とから電池容量の消費量を計算する。
【００３６】
途中遮断手段３が作動すると大電流が流れるので、作動毎電池消費量に加算していく。このようにして常時電池容量の消耗量を推定する。一方電圧検出手段１０は定期的に電池電源手段２の電圧監視を行う。所定電圧以下を検出すると、電圧低下信号を電圧異常判定手段１２に出力する。又所定電圧値以上の場合、電池異常判定手段１２に正常信号を出力する。電圧異常判定手段１２は、電池容量推定手段１１からの電池容量消費量と電圧検出手段１０からの電圧信号とから、電圧低下異常状態かどうかを判定する。
【００３７】
冬季寒波が襲来し異常な低温状態となると、電圧検出手段１は電池電源手段２の一時的な電圧低下レベルを検出することがある。電圧検出手段１０から電圧低下信号が出力されると、電池異常判定手段１２は電池容量推定手段１１の電池容量が所定値以上消耗しているかを判定する。即ち電圧検出手段１０を再度駆動する信号を出力する。電圧検出手段１０は、再駆動信号を入力すると電池電圧を再チェックする。設置後数年等の場合、即ち電池消耗量がまだ小さく、その結果正常電圧を検出すると、つまり所定値以上の電圧値を検出すると正常信号が電圧異常判定手段１２出力される。この場合、最初の電圧検出手段１０からの電圧低下信号は誤信号と判定し、電池電源手段２が一過性の異常気象などに伴う低下による誤判定信号で電圧異常とは判定しない。よって時間計測手段１３はそのまま停止状態を維持する。
【００３８】
一方、何らかの原因で遮断手段３の作動回数（遮断や復帰の合計回数）、経過時間より電池消費容量が少なくて、雨水などの浸水で電圧低下に至ることがあるが、こうした時電圧検出手段１０が低下信号を検出し電圧異常判定手段１２に出力され、再度電圧検出手段１０を駆動し、電池電圧を確認しても電圧低下信号を再度出力する場合がある。このように２度目の場合、電圧異常判定手段１２は電圧低下状態と判定し、時間計測手段１３に電圧低下状態信号を出力し、時間計測開始する。又復帰禁止手段１５にも通知する。更に報知手段１６に電池電圧低下状態の警告表示を行う（電池低下状態の表示をＬＣＤ素子やＬＥＤ素子等で行う）。
【００３９】
更にガス供給事業者に電話回線などを通じて電池低下異常状態を通報する。時間計測手段１８は電池低下状態を検出すると時間カウントを行い電池電圧低下以降のガス遮断装置の使用可能時間を計測する。所定時間カウントすると復帰禁止手段１４に復帰手段１３からの信号受付を禁止状態にすると共に遮断手段３に遮断出力を行う。このことにより以降ガス供給停止を図ることによりガス遮断装置の安全使用可能時間を経過したことを通知する。この状態で復帰手段１４からの遮断状態からの復帰させようとする復帰信号の受付を禁止し、ガス供給停止状態を維持する。報知手段１６を介して以降ガス遮断装置自体を交換しない限りガス供給できない旨を需要家並びにガス供給事業者に通知する。
【００４０】
ここで、電池電源手段２の電圧を一過性の異常低温等の気象環境下で電圧検出手段１０で電池電圧検出すると、電池容量が充分あるのに電圧低下と誤判定する場合がある。誤判定すると時間計測手段１６を計測開始したり、その間放置して所定時間経過すると遮断手段３に遮断信号が出力され電池電圧低下遮断状態となり復帰禁止となるが、誤信号でこのようになるのを防止する必要がある。電圧異常判定手段１２でいきなり時間計測手段１３を作動開始させのではなく、電池容量推定手段１１からの電池容量の推定値を確認することにより、電圧低下信号を誤信号と判定し、かつ電圧低下異常と誤判定しないようにする。
【００４１】
このようにして電池容量が充分あるのに異常低温などの環境要因によりガス遮断装置の電池電源が電圧検出手段１５により所定値以下として誤検出されても、常時電池電源手段２の残容量、即ち過去の消費量より誤信号か否かを判定するので極力無駄に電池電源手段２の容量を消耗することなく、ガス事業者は不要にガス遮断装置を交換することなく、又不要出動回数を減らすことができ安全性や使い勝手が極めて向上する。
【００４２】
（実施例３）
図３は本発明の第３の実施例のガス遮断装置である。図３において、図１、図２、図４、図５及び図６と同一機能を有する構成要素には同一番号を付し説明は省略する。
【００４３】
図３は本発明の第３の実施例のガス遮断装置で、１７は流量検出手段で、ガス需要家でのガス器具のガス使用量を計測する。１８は外部機器手段で、ガス漏れ警報器で検出したガス漏れ検知信号や圧力センサによる圧力低下かどうかを判定信号や、感震器等による地震検知時の信号が出力される。総称して外部機器と述べる。
【００４４】
１９は異常判定手段で、流量検出手段１７で検出したガス流量が異常な流量かどうかを判定したり、又外部機器手段１８で、異常なガス漏れ、ガス圧低下や異常な地震かどうかを判定する。その結果ガス器具の異常な使用（流量等で判断）、或いは外部機器による異常を検出すると遮断手段３にガス供給を停止するために遮断手段３の駆動信号を出力する。
【００４５】
次に上記構成の動作を説明する。ガス遮断装置が設置されガス需要家のガス器具使用状態を監視する。電池電源手段２が電源供給開始すると電池容量推定手段１１はその経過時間と制御装置９の平均電流とから電池容量の消費量を計算する。
【００４６】
途中遮断手段３が作動すると大電流が流れるので、作動毎消費量に加算していく。
【００４７】
このようにして電池容量の消耗量を推定する。一方電圧検出手段１０は定期的に電池電源手段２の電圧監視を行う。所定電圧以下の場合電圧低下信号を電圧異常判定手段１２に出力する。又所定電圧値以上の場合、電池異常判定手段１２に正常信号を出力する。電圧異常判定手段１２は、電池容量推定手段１１からの電池容量消費量と電圧検出手段１０からの電圧信号とから、電圧低下異常状態かどうかを判定する。
【００４８】
冬場の寒波等の異常気象下で電圧検出手段１０が電圧低下状態を検出することがある。電圧検出手段１０から電圧低下信号が出力されると、電池異常判定手段１２は電池容量推定手段１１の電池容量が所定値以上消耗しているかを判定する。
【００４９】
設置後数年等の場合、即ち電池消耗量が小さい場合電圧検出手段１０を再度駆動する信号を出力する。電圧検出手段１０は、再駆動信号を入力すると電池電圧をチェックする。その結果、正常電圧を検出すると、つまり所定値以上の電圧値を検出すると正常信号が電圧異常判定手段１２出力される。この場合、最初の電圧検出手段１０からの電圧低下信号は誤信号と判定し、一過性の異常気象などに伴う誤判定信号で電圧異常とは判定しない。時間計測手段１３はそのまま停止状態を維持する。
【００５０】
一方、何らかの原因で遮断手段３の作動回数（遮断や復帰の合計回数）、経過時間より電池消費容量が少なくて、雨水などの浸水で電圧低下に至ることがあるが、こうした時電圧検出手段１０が低下信号を検出し電圧異常判定手段１２に出力され、再度電圧検出手段１０を駆動し、電池電圧を確認しても電圧低下信号を再度出力する場合がある。このように２度目も電圧低下の場合、電圧異常判定手段１２は電圧低下状態と判定し、時間計測手段１３に電圧低下状態信号を出力し、時間計測開始する。こうした場合、異常な電池を消費する状態が発生した場合、早期にガス供給を停止しガス遮断装置を交換した方が安全である。再度電圧確認により電圧低下状態が検出されたので、以降ガス需要家が繰返しガス器具の異常な使用をされた場合、例えばストーブなどのガス器具を異常に長時間使用することを繰返し行われると、何度も遮断手段３を駆動することになると通常より電流量消費が大きいのに繰返し使用すると電池消耗が加速し、最悪遮断しない場合が想定される。そこで、流量検出手段１７でガス器具の使用状態を監視し、異常なガス流量を検出し、異常判定手段１９で異常レベルに達していると判定すると遮断信号を遮断手段３に出力し、かつ復帰禁止手段１５にも通知する。以後復帰手段１４からの復帰信号を受け付けず、ガス器具を使用できない。こうして早期の異常検出でガス事業者に通知している。
【００５１】
報知手段１６は電池電圧低下状態の警告表示を行う（電池低下状態の表示をＬＣＤ素子やＬＥＤ素子等で行う）。更にガス供給事業者に電話回線などを通じて電池低下異常状態を通報する。ここで異常判定手段１９で異常検知できなかった場合、時間計測手段１８は電池低下状態を検出すると時間カウントを行い電池電圧低下以降のガス遮断装置の使用可能時間を計測する。所定時間カウントすると復帰禁止手段１４に復帰手段１３からの信号受付を禁止状態にすると共に遮断手段３に遮断出力を行う。このことにより以降ガス供給停止を図ることによりガス遮断装置の安全使用可能時間を経過したことを通知する。この状態で復帰手段１４からの遮断状態からの復帰させようとする復帰信号の受付を禁止し、ガス供給停止状態を維持する。報知手段１６を介して以降ガス遮断装置自体を交換しない限りガス供給できない旨を需要家並びにガス供給事業者に通知する。
【００５２】
このように、電池電源手段２の電圧を一過性の異常低温等の気象環境下で電圧検出手段１０で電池電圧検出すると、電池容量が充分あるのに電圧低下と誤判定する場合がある。誤判定すると時間計測手段１６を計測開始したり、その間放置して所定時間経過すると遮断手段３に遮断信号が出力され電池電圧低下遮断状態となり復帰禁止となるが、誤信号でこのようになるのを防止する必要がある。電圧異常判定手段１２でいきなり時間計測手段１３を作動開始させずに、再度電圧検出手段１０を駆動し、電池電圧を再度確認することにより、正常値を検出時誤信号と判定し電圧低下異常と誤判定しないようにする。しかし再度確認することによりガス遮断装置の電池電源が電圧検出手段１５により所定値以下として検出された場合、早期にガス供給停止方法を備えているので、電池電圧の突然の低下により異常時にガス遮断できないということがなく安全性や使い勝手が極めて向上する。
【００５３】
（実施例４）
図４は本発明の第４の実施例のガス遮断装置である。図４において、図１、図２、図３、図５及び図６と同一機能を有する構成要素には同一番号を付し説明は省略する。
【００５４】
図４は本発明の第４の実施例のガス遮断装置で、２０は時間遅延手段で、電圧異常判定手段１２に、電圧検出手段１０と電池容量推定手段１１との出力が入るように接続され、電池容量推定手段１１から電池容量が充分残っている状態を示す信号が出力されている時で、電圧検出手段１０が電池電圧低下信号を検出した場合、再度電池電源手段２の電圧レベル確認の為に、電圧検出手段１０を駆動する信号を出力するが、この時一定時間遅延して電圧検出手段１０を駆動し、電池電源手段２の電圧確認を行う。
【００５５】
次に上記構成の動作を説明する。ガス遮断装置が設置されガス需要家のガス器具使用状態を監視する。電池電源手段２が電源供給開始すると電池容量推定手段１１はその経過時間と制御装置９の平均電流とから電池容量の消費量を計算する。
【００５６】
途中遮断手段３が作動すると大電流が流れるので、遮断手段３の遮断回数や復帰回数と遮断手段の消費電流とから電池容量消耗量を算出し、作動毎電流消費量として計算していく。このようにして電池容量の消耗量を推定する。一方電圧検出手段１０は定期的に電池電源手段２の電圧監視を行う。所定電圧以下の場合電圧低下信号を電圧異常判定手段１２に出力する。又所定電圧値以上の場合、電池異常判定手段１２に正常信号を出力する。電圧異常判定手段１２は、電池容量推定手段１１からの電池容量消費量と電圧検出手段１０からの電圧信号とから、電圧低下異常状態かどうかを判定する。
【００５７】
冬場の寒波等の異常気象下で電圧検出手段１０が電圧低下状態を検出することがある。電圧検出手段１０から電圧低下信号が出力されると、電池異常判定手段１２は電池容量推定手段１１の電池容量が所定値以上消耗しているかを判定する。
【００５８】
設置後数年等の場合、即ち電池消耗量が小さい場合電圧検出手段１０を再度駆動する信号を時間遅延手段２０に出力する。時間遅延手段２０は一定時間遅延して電圧検出手段１０に駆動信号を出力する。電圧検出手段１０を駆動し電圧確認する時間帯を変えてチェックする。異常低温になりやすい時間帯は明け方であり、ガス器具の使用頻度が極めて小さい時間帯であり、最もガス器具を良く使用する時間帯での電池電源手段２の遮断手段３の駆動能力を評価する必要がある。よって一定時間遅延後電圧検出手段１０は、再駆動信号を入力すると電池電圧をチェックする。その結果、正常電圧を検出すると、つまり所定値以上の電圧値を検出すると正常信号が電圧異常判定手段１２出力される。この場合、最初の電圧検出手段１０からの電圧低下信号は誤信号と判定し、一過性の異常気象などに伴う誤判定信号で電圧異常とは判定しない。時間計測手段１３はそのまま停止状態を維持する。
【００５９】
一方、何らかの原因で遮断手段３の作動回数（遮断や復帰の合計回数）、経過時間より電池消費容量が少なくて、雨水などの浸水で電圧低下に至ることがあるが、こうした時電圧検出手段１０が低下信号を検出し電圧異常判定手段１２に出力され、再度電圧検出手段１０を駆動し、電池電圧を確認しても電圧低下信号を再度出力する場合がある。このように２度目の場合、電圧異常判定手段１２は電圧低下状態と判定し、時間計測手段１３に電圧低下状態信号を出力し、時間計測開始する。又復帰禁止手段１５にも通知する。更に報知手段１６に電池電圧低下状態の警告表示を行う（電池低下状態の表示をＬＣＤ素子やＬＥＤ素子等で行う）。
【００６０】
更にガス供給事業者に電話回線などを通じて電池低下異常状態を通報する。時間計測手段１８は電池低下状態を検出すると時間カウントを行い電池電圧低下以降のガス遮断装置の使用可能時間を計測する。所定時間カウントすると復帰禁止手段１４に復帰手段１３からの信号受付を禁止状態にすると共に遮断手段３に遮断出力を行う。このことにより以降ガス供給停止を図ることによりガス遮断装置の安全使用可能時間を経過したことを通知する。この状態で復帰手段１４からの遮断状態からの復帰させようとする復帰信号の受付を禁止し、ガス供給停止状態を維持する。報知手段１６を介して以降ガス遮断装置自体を交換しない限りガス供給できない旨を需要家並びにガス供給事業者に通知する。
【００６１】
このように、電池電源手段２の電圧を一過性の異常低温等の気象環境下で電圧検出手段１０で電池電圧検出すると、電池容量が充分あるのに電圧低下と誤判定する場合がある。誤判定すると時間計測手段１６を計測開始したり、その間放置して所定時間経過すると遮断手段３に遮断信号が出力され電池電圧低下遮断状態となり復帰禁止となるが、誤信号でこのようになるのを防止する必要がある。そこで、今回電圧異常判定手段１２でいきなり時間計測手段１３を作動開始させずに、電圧検出手段１０より低下信号が入力されても、時間遅延手段２０で一定時間おいて再度電圧検出手段１０を駆動し、電池電圧を再度確認することにより本来のガス器具を良く使用する時間帯で、又冬季においても比較的気温の高い時間帯で電池電源手段２の駆動能力がわかり、電池容量が充分ある場合正常電圧値を検出するが、最初の低下信号を誤信号と判定し電圧低下異常と誤判定しないように防止するので、ガス事業者は不要にガス遮断装置を交換することなく、又不要出動回数を減らすことができ安全性や使い勝手が極めて向上する。
【００６２】
（実施例５）
図５は本発明の第５の実施例のガス遮断装置である。図５において、図１、図２、図３、図４及び図６と同一機能を有する構成要素には同一番号を付し説明は省略する。
【００６３】
図５は本発明の第５の実施例のガス遮断装置で、２１は遅延時間可変手段で、電圧異常判定手段１２に、電圧検出手段１０と電池容量推定手段１１との出力が入るように接続され、電池容量推定手段１１から電池容量が充分残っている状態を示す信号が出力されている時で、電圧検出手段１０が電池電圧低下信号を検出した場合、再度電池電源手段２の電圧レベル確認の為に、電圧検出手段１０を再駆動する信号を出力するが、この時遅延する時間を可変して電圧検出手段１０を駆動する。電池容量が充分残っていて電圧検出手段１０が低下信号を検出する場合が冬季長期間に渡り発生しやすいが、そのたび毎に再度電圧検出手段１０を駆動する迄の時間帯をずらして、即ち遅延時間を可変して電圧確認を行う。
【００６４】
次に上記構成の動作を説明する。ガス遮断装置が設置されガス需要家のガス器具使用状態を監視する。電池電源手段２が電源供給開始すると電池容量推定手段１１はその経過時間と制御装置９の平均電流とから電池容量の消費量を計算する。
【００６５】
途中遮断手段３が作動すると大電流が流れるので、遮断手段３の遮断回数や復帰回数と遮断手段の消費電流とから電池容量消耗量を算出し、作動毎電流消費量として計算していく。このようにして電池容量の消耗量を推定する。一方電圧検出手段１０は定期的に電池電源手段２の電圧監視を行う。所定電圧以下の場合電圧低下信号を電圧異常判定手段１２に出力する。又所定電圧値以上の場合、電池異常判定手段１２に正常信号を出力する。電圧異常判定手段１２は、電池容量推定手段１１からの電池容量消費量と電圧検出手段１０からの電圧信号とから、電圧低下異常状態かどうかを判定する。
【００６６】
冬場の寒波等の異常気象下で電圧検出手段１０が電圧低下状態を検出することがある。又冬季何度も寒波が襲来し異常低温が繰返し発生するので、前述のことは繰返し発生することがある。電圧検出手段１０から電圧低下信号が出力される毎と、電池異常判定手段１２は電池容量推定手段１１の電池容量が所定値以上消耗しているかを判定する。ガス遮断装置設置後数年しか経過していない場合通常電池消耗量が小さいが、電圧検出手段１０に再度駆動する信号を遅延時間可変手段２１に出力する。遅延時間可変手段２１は、再度電圧検出手段１０を駆動する信号が発生する毎、例えば一定時間毎遅延時間を可変して電圧検出手段１０に駆動信号を出力する。電圧検出手段１０を駆動し電圧確認する時間帯を変えて駆動能力をチェックする。異常低温になりやすい時間帯は明け方であり、ガス器具の使用頻度が極めて小さい時間帯であるが、最もガス器具を良く使用する時間帯での電池電源手段２の遮断手段３の駆動能力を時間帯をさまざま変えて平均的に評価する必要がある。よって一定時間遅延後電圧検出手段１０は、再駆動信号を入力すると電池電圧をチェックする。その結果、正常電圧を検出すると、つまり所定値以上の電圧値を検出すると正常信号が電圧異常判定手段１２出力される。この場合、最初の電圧検出手段１０からの電圧低下信号は誤信号と判定し、一過性の異常気象などに伴う誤判定信号で電圧異常とは判定しない。時間計測手段１３はそのまま停止状態を維持する。
【００６７】
一方、何らかの原因で遮断手段３の作動回数（遮断や復帰の合計回数）、経過時間より電池消費容量が少なくて、雨水などの浸水で電圧低下に至ることがあるが、こうした時電圧検出手段１０が低下信号を検出し電圧異常判定手段１２に出力され、再度電圧検出手段１０を駆動し、電池電圧を確認しても電圧低下信号を再度出力する場合がある。このように２度目の場合、電圧異常判定手段１２は電圧低下状態と判定し、時間計測手段１３に電圧低下状態信号を出力し、時間計測開始する。又復帰禁止手段１５にも通知する。更に報知手段１６に電池電圧低下状態の警告表示を行う（電池低下状態の表示をＬＣＤ素子やＬＥＤ素子等で行う）。
【００６８】
更にガス供給事業者に電話回線などを通じて電池低下異常状態を通報する。時間計測手段１８は電池低下状態を検出すると時間カウントを行い電池電圧低下以降のガス遮断装置の使用可能時間を計測する。所定時間カウントすると復帰禁止手段１４に復帰手段１３からの信号受付を禁止状態にすると共に遮断手段３に遮断出力を行う。このことにより以降ガス供給停止を図ることによりガス遮断装置の安全使用可能時間を経過したことを通知する。この状態で復帰手段１４からの遮断状態からの復帰させようとする復帰信号の受付を禁止し、ガス供給停止状態を維持する。報知手段１６を介して以降ガス遮断装置自体を交換しない限りガス供給できない旨を需要家並びにガス供給事業者に通知する。
【００６９】
このように、電池電源手段２の電圧を一過性の異常低温等の気象環境下で電圧検出手段１０で電池電圧検出すると、電池容量が充分あるのに電圧低下と誤判定する場合が繰返し発生しやすい。誤判定すると時間計測手段１６を計測開始したり、その間放置して所定時間経過すると遮断手段３に遮断信号が出力され電池電圧低下遮断状態となり復帰禁止となるが、誤信号でこのようになるのを防止する必要がある。そこで、今回電圧異常判定手段１２でいきなり時間計測手段１３を作動開始させずに、又繰返し電圧検出手段１０より低下信号が入力されても、遅延時間可変手段２１でそのたび毎遅延時間を可変して再度電圧検出手段１０を駆動し、電池電圧を再度確認することにより本来のガス器具を良く使用する時間帯での電池電源手段２の平均的な駆動能力がわかり、かつ電池容量が充分ある場合正常電圧値を検出するが、最初の低下信号を誤信号と判定し電圧低下異常と誤判定しないように防止するので、ガス事業者は不要にガス遮断装置を交換することなく、又不要出動回数を減らすことができ安全性や使い勝手が極めて向上する。
【００７０】
【発明の効果】
以上説明したように本発明の請求項１によれば、電源を供給する電池電源手段と、ガス媒体の供給や遮断を行う遮断手段と、前記電池電源手段の供給電圧を監視し電池電圧を検出する電圧検出手段と、前記遮断手段の駆動回数及び電源供給開始からの経過時間より電池消費量を推定する電池容量推定手段と、前記電池容量推定手段の消費容量が所定以内で前記電圧検出手段より所定電圧以下の信号が出力された場合再度前記電圧検出手段を駆動し低電圧検出時電圧低下信号を出力する電圧異常判定手段と、前記電圧異常判定手段で電圧低下状態を検出時所定時間計測開始し所定時間経過後前記遮断手段に遮断出力する時間計測手段と、前記遮断手段をガス供給可能状態に復帰させる信号を出力する復帰手段と、前記時間計測手段で所定時間経過した場合復帰信号を入力禁止とする復帰禁止手段とを設けており、電池消費量が小さくまだ充分電池容量があるのに冬季異常低温気象等の影響で電圧検出手段により電池電源の供給電圧が所定電圧以下であるのを検出された場合、報知手段で異常表示されたり、ガス事業者等に異常通知されるのを防ぐ為に、電池電源手段の電源供給開始後の時間や最も電池容量を消費する遮断手段の遮断・復帰回数等より電池容量推定手段で消費量計算し残電池容量を推定し、所定消費量以内の場合電圧検出手段が電池低下信号を出力しても再度電圧検出手段を駆動しその結果正常電圧検出時、最初の電池低下検出を誤信号と判定し、時間計測手段での時間計測を停止状態に保持し遮断手段を駆動しないようにし、需要家がガスストーブ等を使用し暖房中に誤判定により時間経過しガス停止されガス使用不可能状態になることはなく信頼性が高まり使い勝手が極めて向上する。
【００７１】
又説明したように本発明の請求項２によれば、電源を供給する電池電源手段と、ガス媒体の供給や遮断を行う遮断手段と、前記電池電源手段の供給電圧を監視し電池電圧を検出する電圧検出手段と、前記遮断手段の駆動回数及び電源供給開始からの経過時間より電池消費量を推定する電池容量推定手段と、前記電池容量推定手段の消費容量が所定以内で前記電圧検出手段より所定電圧以下の信号が出力された場合前記電圧検出手段からの電池電圧低下信号を出力停止し電池消費容量が所定以上の場合出力する電圧異常判定手段と、前記電圧異常判定手段で電圧低下状態を検出時所定時間計測し所定時間経過後前記遮断手段に遮断出力する時間計測手段と、前記遮断手段をガス供給可能状態に復帰させる信号を出力する復帰手段と、前記時間計測手段で所定時間経過した場合復帰信号を入力禁止とする復帰禁止手段とを設けることにより、電池消費量が小さくまだ充分電池容量があるのに異常低温気象等の影響で電圧検出手段により電池電源の供給電圧が所定電圧以下であるのを検出された場合、報知手段で異常表示されたり、ガス事業者等に異常通知されるのを防ぐ為に、電池電源手段の電源供給開始後の時間や最も電池容量を消費する遮断手段の遮断・復帰回数等より電池容量推定手段で消費量計算し残電池容量を推定し、所定消費量以内の場合電圧検出手段が電池低下信号を出力しても誤信号と判定し、時間計測手段での時間計測を停止状態に保持し遮断手段を駆動しないようにし、需要家がガスストーブ等を使用し暖房中に誤判定により時間経過しガス停止されガス使用不可能状態になることはなく信頼性が高まり使い勝手が極めて向上する。
【００７２】
又説明したように本発明の請求項３によれば、電源を供給する電池電源手段と、ガス媒体の供給や遮断を行う遮断手段と、前記電池電源手段の供給電圧を監視し電池電圧を検出する電圧検出手段と、前記遮断手段の駆動回数及び電源投入時からの経過時間より電池消費量を推定する電池容量推定手段と、前記電池容量推定手段の消費容量が所定以内の場合前記電圧検出手段より所定電圧以下の信号が出力されても再度前記電圧検出手段を駆動し正常電圧検出時前記時間計測手段を時間計測停止を継続し前記復帰禁止手段へ入力許可状態を保持する電圧異常判定手段と、前記電圧異常判定手段で電圧低下状態を検出時所定時間計測する時間計測手段と、前記遮断手段をガス供給可能状態に復帰させる信号を出力する復帰手段と、ガス供給量を計測する流量検出手段と、ガス漏れや地震などの異常状態を検出する外部機器手段と、前記流量検出手段や前記外部機器手段からの信号より異常なガス器具の使用状態かを判定し異常使用と判定時遮断信号を出力する異常判定手段と、前記時間計測手段で時間計測中前記流量検出手段で異常流量を検出したり又前記外部機器手段により異常ガス漏れや所定以上の地震検知した場合前記遮断手段に遮断信号を出力すると共に復帰信号を入力禁止とする復帰禁止手段とを設けることにより、電池電源による電源供給開始からの時間が短くても何らかの原因で、例えば雨水等が浸水してきて電池を消耗することがあるが、このような状況下で異常低温気象等の影響で電圧検出手段により電池電源の供給電圧が所定電圧以下であるのを検出された場合、電池電源手段の電源供給開始後の時間や最も電池容量を消費する遮断手段の遮断・復帰回数等より電池容量推定手段で消費量計算し残電池容量を推定し、所定消費量以内と判定された場合電圧検出手段が電池低下信号を出力しても再度電圧検出手段を駆動しその結果低電圧状態を検出するが、その電圧低下状態により時間計測手段が時間計測開始し所定時間中、異常な流量を検出した時或いはガス漏れや異常に大きい地震等を検出すると遮断手段を駆動しガス供給停止し復帰不可能とし、即ち再度ガス供給不可能とするので、何度も需要家がガスストーブ等を長時間継続使用するような異常な使われ方を繰返しされ電池消耗がすすむのを防止し、結果ガス漏れ異常で遮断条件が成立しているのにガス停止不可能状態になるのを防ぎ、安全性や信頼性が高まり使い勝手が極めて向上する。
【００７３】
又説明したように本発明の請求項４によれば、電源を供給する電池電源手段と、ガス媒体の供給や遮断を行う遮断手段と、前記電池電源手段の供給電圧を監視し電池電圧を検出する電圧検出手段と、前記遮断手段の駆動回数及び電源供給開始からの経過時間より電池消費量を推定する電池容量推定手段と、前記電池容量推定手段の消費容量が所定以内で前記電圧検出手段より所定電圧以下の信号が出力された場合再度前記電圧検出手段を駆動する信号を出力すると共低電圧検出時電圧低下信号を出力する電圧異常判定手段と、前記電池異常判定手段で再度前記電圧電圧検出手段を駆動する信号を出力されると所定時間遅延後前記電圧検出手段に駆動信号を出力する時間遅延手段と、前記電圧異常判定手段で電圧低下状態を検出時所定時間計測開始し所定時間経過後前記遮断手段に遮断出力する時間計測手段と、前記遮断手段をガス供給可能状態に復帰させる信号を出力する復帰手段と、前記時間計測手段で所定時間経過した場合復帰信号を入力禁止とする復帰禁止手段とを設けており、電池消費量が小さくまだ充分電池容量があるのに異常低温気象等の影響で電圧検出手段により電池電源の供給電圧が所定電圧以下であるのを検出された場合、報知手段で異常表示されたり、ガス事業者等に異常通知されるのを防ぐ為に、電池電源手段の電源供給開始後の時間や最も電池容量を消費する遮断手段の遮断・復帰回数等より電池容量推定手段で消費量計算し残電池容量を推定し、所定消費量以内の場合電圧検出手段が電池低下信号を出力すると、再度電圧検出手段を駆動する信号が出力されるが、その信号で時間遅延手段が作動し一定時間経過後電圧検出手段を駆動するので、電圧低下信号を検出した時間帯よりずれて、良くガス器具を使用する時間帯で電池電圧を検出するので結果電池容量が充分残っている場合正常電池電圧を検出するので、最初の電池低下検出を誤信号と判定し、時間計測手段での時間計測を停止状態に保持し遮断手段を駆動しないようにし、需要家がガスストーブ等を使用し暖房中に誤判定により時間経過しガス停止されガス使用不可能状態になることはなく信頼性が高まり使い勝手が向上している。
【００７４】
又説明したように本発明の請求項５によれば、電源を供給する電池電源手段と、ガス媒体の供給や遮断を行う遮断手段と、前記電池電源手段の供給電圧を監視し電池電圧を検出する電圧検出手段と、前記遮断手段の駆動回数及び電源供給開始からの経過時間より電池消費量を推定する電池容量推定手段と、前記電池容量推定手段の消費容量が所定以内で前記電圧検出手段より所定電圧以下の信号が出力された場合再度前記電圧検出手段を駆動する信号を出力すると共低電圧検出時電圧低下信号を出力する電圧異常判定手段と、前記電池異常判定手段で再度前記電圧電圧検出手段を駆動する信号を出力される毎に前記電圧検出手段を駆動する時間を可変しつつ前記電圧検出手段を駆動信号を出力する遅延時間可変手段と、前記電圧異常判定手段で電圧低下状態を検出時所定時間計測開始し所定時間経過後前記遮断手段に遮断出力する時間計測手段と、前記遮断手段をガス供給可能状態に復帰させる信号を出力する復帰手段と、前記時間計測手段で所定時間経過した場合復帰信号を入力禁止とする復帰禁止手段とを設けており、電池消費量が小さくまだ充分電池容量があるのに異常低温気象等が継続すると電圧検出手段により電池電源の供給電圧が所定電圧以下であるのを検出されることが繰返し発生しやすく、こうしたことで報知手段で異常表示されたり、ガス事業者等に異常通知されるのを防ぐ為に、電池電源手段の電源供給開始後の時間や最も電池容量を消費する遮断手段の遮断・復帰回数等より電池容量推定手段で消費量計算し残電池容量を推定し、所定消費量以内の場合電圧検出手段が電池低下信号を出力すると、再度電圧検出手段を駆動し正確に電池電圧を計測するために、又こうしたことが冬季頻繁に発生しやすくなるために電圧異常判定手段より電圧駆動信号が出力されるとその信号で遅延時間可変手段が作動し発生毎所定時間値を可変して電圧検出手段を駆動するので、電圧低下信号を検出した時間帯より遅延されてさまざまな時間帯で電池電圧を判定することができ、低下電圧信号が入力される毎遅延時間可変手段が電圧検出手段を駆動する迄の時間を可変して再判定するので電池容量が充分残っている場合平均的に正確に電池電圧を計測でき結果正常電池電圧を検出するので、最初の電池低下検出を誤信号と判定し、時間計測手段での時間計測を停止状態に保持し遮断手段を駆動しないようにし、需要家がガスストーブ等を使用し暖房中に誤判定により時間経過しガス停止されガス使用不可能状態になることはなく信頼性が高まり使い勝手が向上している。
【図面の簡単な説明】
【図１】本発明の第１の実施例のガス遮断装置の制御ブロック図
【図２】本発明の第２の実施例のガス遮断装置の制御ブロック図
【図３】本発明の第３の実施例のガス遮断装置の制御ブロック図
【図４】本発明の第４の実施例のガス遮断装置の制御ブロック図
【図５】本発明の第５の実施例のガス遮断装置の制御ブロック図
【図６】従来のガス遮断装置の制御ブロック図
【符号の説明】
２　電池電源手段
３　遮断手段
１０　電圧検出手段
１１　電池容量推定手段
１２　電池異常判定手段
１３　時間計測手段
１４　復帰手段
１５　復帰禁止手段
１６　報知手段
１７　流量検出手段
１８　外部機器手段
１９　異常判定手段
２０　時間遅延手段
２１　遅延時間可変手段[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a gas shut-off device for monitoring the use state of a gas appliance using city gas, LP gas, or the like, and for ensuring safety when the power capacity of a battery power source is consumed.
[0002]
[Prior art]
A conventional gas shut-off device of this type has a configuration shown in FIG. FIG. 5 shows a block diagram of a conventional gas shut-off device.
[0003]
In the gas shut-off device 1 of FIG. 5, reference numeral 2 denotes a battery power source, which supplies power to the entire gas shut-off device. Reference numeral 3 denotes a shutoff valve for stopping or supplying gas in the flow path.
[0004]
Reference numeral 4 denotes a voltage drop detection unit which detects a battery voltage in a consumed state in which the capacity of the battery power supply 2 capable of operating the gas shutoff device 1 within a predetermined operation guarantee time and outputs a voltage drop signal A. Reference numeral 5 denotes an opening accepting portion, which accepts opening of the shut-off valve when the voltage drop signal A is input, and opens when an opening request (input of an opening signal by an opening request switch or communication) is received. A plug request signal is output. Reference numeral 6 denotes a timer section, which counts a predetermined operation guarantee time from when the voltage drop signal A is input, and outputs an opening completion signal D.
[0005]
Reference numeral 7 denotes an opening function stopping unit which outputs a closing stop signal E for stopping the opening by the opening request signal C when the opening completion signal D is inputted. Reference numeral 8 denotes a gas shut-off control unit which closes the shut-off valve 3 when the battery voltage drop signal A or the plug stop signal E is input, and when the open request signal C is input before the input signal of the plug stop signal E. The shutoff valve 3 is opened.
[0006]
Next, the operation of the conventional configuration will be described. When the voltage drop detection unit 4 checking the degree of consumption of the battery power supply 2 detects the battery consumption voltage, it outputs a voltage drop signal A to the opening reception unit 5, the timer unit 6, and the gas cutoff control unit 8. The gas shutoff control unit 8 to which the voltage drop signal A has been input outputs the first shutoff command signal B1 to operate the shutoff valve 3 to open the gas passage. The timer section 6 starts counting when the voltage drop signal A is input, and before the timer section 6 finishes counting for a predetermined time, there is an opening request to the opening reception section 5 and an opening request signal C Is output, the gas shutoff control unit 8 opens the shutoff valve 3. When the counting by the timer section 6 is completed, the opening completion signal D is output, so the opening function stopping section 5 outputs the closing stop signal E and stops accepting the opening request. The gas shut-off device 1 to which the plug stop signal E has been input outputs the second shut-off command signal B2 to close the shut-off valve 3.
[0007]
In the gas shut-off device 1 attached to the flow path of the medium gas such as city gas and LP gas, the voltage drop detection unit 4 measures the voltage of the battery power supply 2 at predetermined time intervals to monitor the degree of battery consumption. . The lower limit voltage at which the gas shut-off device 1 can be operated is set in advance as the operation assurance voltage, and the voltage value when the voltage rises by the required number of days from here is set as the battery consumption voltage. The voltage drop detection unit 4 monitors the battery voltage and detects the battery voltage at the time of this consumption. That is, a grace period is provided until the gas shut-off valve 3 can be opened and the gas shut-off device 1 is replaced only during a period in which the voltage of the battery power supply 2 is reduced to the operation guarantee voltage after the battery consumption voltage is detected for the required number of days. Things.
[0008]
[Patent Document 1]
JP-A-10-103546
[0009]
[Problems to be solved by the invention]
However, the conventional configuration has the following problems. When the gas shut-off device enters a low temperature environment such as below freezing in winter and further becomes abnormally low temperature due to a cold wave, etc., when the voltage value of the battery power supply means 2 is inspected by the battery drop detecting unit 4, the inspection is performed when the temperature is high such as in the daytime. In some cases, the voltage value may be lower than in the case where the battery voltage is low, and although the battery consumption is small, the voltage drop detection unit 4 erroneously determines that the battery voltage is in a predetermined depleted state, and outputs a voltage drop signal A to the timer unit. It is assumed that the counting is started at 6 and the gas shutoff valve 3 is driven by the gas shutoff control unit 8 to stop the gas supply. For this erroneous determination, for example, when a customer uses a gas appliance, During cooking, there is a problem that cooking is not possible and cooking is not easy.
[0010]
The present invention solves the above-described problems, and detects whether the battery voltage is low, detects whether the battery is low due to battery exhaustion, or determines whether the battery is low due to erroneous determination. It is an object of the present invention to provide a highly reliable gas shut-off device.
[0011]
[Means for Solving the Problems]
In order to solve this problem, the present invention provides a shutoff unit for supplying and shutting off a gas medium, a voltage detection unit for monitoring a supply voltage of a battery power supply unit for supplying power, and a battery capacity estimation unit for driving the shutoff unit. The battery consumption is estimated from the number of times and the elapsed time since the power was turned on. If the signal below the predetermined voltage is output from the voltage detection unit even though the estimated consumption capacity by the battery capacity estimation unit is within the predetermined range, the voltage Driving the detecting means and reconfirming the voltage of the battery power supply means, does not output a voltage drop signal at the time of normal voltage detection, and drives the voltage detecting means again to check the battery voltage and predetermined when the voltage abnormality judging means detects a voltage drop state. Time measurement means for starting time measurement, return means for outputting a signal for returning the shut-off means to the gas supply enabled state, and a return prohibition means for prohibiting the input of the return signal when a predetermined time has elapsed by the time measurement means. And a configuration consisting of a.
[0012]
As a result, the supply voltage of the battery power supply may be detected to be equal to or lower than the predetermined voltage by the voltage detection means due to, for example, temporary abnormal low temperature weather in winter. When the battery is checked, a normal voltage is detected. In this case, the drop signal detected by the battery voltage detecting means is not output to the time measuring means by the battery abnormality determining means as an erroneous signal, so that the battery capacity is sufficient. In this state, the battery is erroneously determined to be low and the time measurement is started by the time measurement means, and the interruption means is not driven to the interruption state after a predetermined time elapses, and the battery abnormality is not displayed on the notification means due to the erroneous determination. For example, the gas is not stopped due to the lapse of time due to an erroneous determination during cooking by the customer, and the gas cannot be used, thereby improving usability and reliability.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
In order to achieve the above object, the present invention provides a battery power supply means for supplying power, a cutoff means for supplying and cutting off a gas medium, and a voltage detection means for monitoring a supply voltage of the battery power supply means and detecting a battery voltage. A battery capacity estimating means for estimating a battery consumption from the number of times of driving of the shut-off means and an elapsed time from the start of power supply; Is output again, the voltage detection means is driven again to output a voltage drop signal at the time of low voltage detection, and a voltage abnormality determination means, and the voltage abnormality determination means starts measuring a predetermined time when a voltage drop state is detected, and after a predetermined time elapses Time measuring means for shutting off and outputting to the shutoff means, return means for outputting a signal for returning the shutoff means to the gas supply enabled state, and resetting when a predetermined time has passed by the time measuring means. Comprising a return inhibition unit to input disable signal.
[0014]
If the voltage detection means detects that the supply voltage of the battery power supply is lower than a predetermined voltage due to abnormal low temperature weather or the like even though the battery consumption is still small and the battery capacity is still sufficient, the notification means may display an error. In order to prevent abnormalities from being notified to gas companies, etc., the battery capacity estimating means calculates the consumption based on the time since the start of power supply of the battery power means and the number of times of shutting off / returning of the shutoff means which consumes the most battery capacity. The remaining battery capacity is estimated, and if the battery consumption is within a predetermined amount, the voltage detection means outputs a low battery signal and drives the voltage detection means again. As a result, when a normal voltage is detected, the first low battery detection is determined to be a false signal. Then, the time measurement by the time measurement means is kept in a stopped state and the shut-off means is not driven, and the customer stops using the gas stove or the like during heating due to erroneous determination during heating and the gas is stopped and the gas cannot be used. Become Reliability is increased ease of use has been improved without the.
[0015]
Further, in order to achieve the above object, the present invention provides a battery power supply means for supplying power, a cutoff means for supplying and shutting off a gas medium, and a voltage detection means for monitoring a supply voltage of the battery power supply means and detecting a battery voltage. A battery capacity estimating means for estimating a battery consumption from the number of times of driving of the shutoff means and an elapsed time from the start of power supply; When the signal is output, the battery voltage drop signal from the voltage detecting means is determined to be an erroneous signal, and when the battery consumption capacity is equal to or more than a predetermined amount, the battery voltage drop determining means is output. A time measuring means for measuring a voltage drop state for a predetermined time upon detection and outputting a cut-off signal to the cut-off means after a lapse of a predetermined time; and a resetting means for outputting a signal for returning the cut-off means to a gas supply enabled state. When, and a return inhibition unit which receives prohibited if return signal a predetermined time has elapsed in the time measuring means.
[0016]
If the voltage detection means detects that the supply voltage of the battery power supply is lower than a predetermined voltage due to abnormal low temperature weather or the like even though the battery consumption is still small and the battery capacity is still sufficient, the notification means may display an error. In order to prevent abnormalities from being notified to gas companies, etc., the battery capacity estimating means calculates the consumption based on the time since the start of power supply of the battery power means and the number of times of shutting off / returning of the shutoff means which consumes the most battery capacity. The remaining battery capacity is estimated, and if the consumption is within a predetermined amount of consumption, the voltage detection means outputs a low battery signal and determines that the signal is an erroneous signal, holds the time measurement by the time measurement means in a stopped state, and does not drive the cutoff means. In this way, a gas stove or the like is used by a consumer to prevent the gas from being stopped due to an erroneous determination during heating due to an erroneous determination, and the gas to be in an unusable state, thereby improving reliability and improving usability.
[0017]
Further, in order to achieve the above object, the present invention provides a battery power supply means for supplying power, a cutoff means for supplying and shutting off a gas medium, and a voltage detection means for monitoring a supply voltage of the battery power supply means and detecting a battery voltage. A battery capacity estimating means for estimating a battery consumption from the number of times of driving of the cutoff means and an elapsed time from power-on, and a voltage not more than a predetermined voltage from the voltage detecting means when the consumed capacity of the battery capacity estimating means is within a predetermined value. Voltage abnormality determining means for driving the voltage detecting means again and outputting the voltage drop signal at the time of normal voltage detection and driving the voltage detecting means again at the time of low voltage detection even when the signal is output. Time measuring means for starting measurement for a predetermined time when the state is determined to be low, returning means for outputting a signal for returning the shut-off means to the gas supply enabled state, and flow detecting means for measuring the gas supply amount , External device means for detecting an abnormal state such as gas leak or earthquake, and a signal from the flow rate detecting means or the external device means to judge whether or not an abnormal gas appliance is in use, and output a shut-off signal when abnormal use is determined. An abnormal determination means for performing an output of a shutoff signal to the shutoff means when an abnormal flow rate is detected by the flow rate detection means during the time measurement by the time measurement means or an abnormal gas leak or a predetermined earthquake is detected by the external device means. And a return prohibiting means for prohibiting the input of the return signal.
[0018]
Even if the time from the start of power supply by the battery power supply is short, for some reason, for example, rainwater or the like may be flooded and the battery may be consumed, but under such circumstances, the voltage detection means is affected by abnormal low temperature weather or the like. When it is detected that the supply voltage of the battery power supply is equal to or lower than the predetermined voltage, the battery capacity estimating means uses the time after the start of power supply of the battery power supply means and the number of times of shutoff / return of the shutoff means that consumes the most battery capacity. The remaining battery capacity is estimated by calculating the consumption amount, and when it is determined that the remaining amount is within the predetermined consumption amount, the voltage detection unit drives the voltage detection unit again even if the voltage detection unit outputs the low battery signal, thereby detecting the low voltage state. The time measuring means starts measuring the time due to the voltage drop, and when an abnormal flow rate is detected during a predetermined time or when a gas leak or an abnormally large earthquake is detected, the shut-off means is driven to stop the gas supply and the recovery is not possible. In other words, since the gas supply cannot be performed again, it is possible to prevent the battery from being consumed by repeating the abnormal usage of the gas stove or the like for a long period of time, thereby resulting in gas leakage. Even if the shut-off condition is satisfied due to an abnormality, it is possible to prevent the gas from being unable to be stopped, so that safety and reliability are enhanced and usability is greatly improved.
[0019]
Further, in order to achieve the above object, the present invention provides a battery power supply means for supplying power, a cutoff means for supplying and shutting off a gas medium, and a voltage detection means for monitoring a supply voltage of the battery power supply means and detecting a battery voltage. A battery capacity estimating means for estimating a battery consumption from the number of times of driving of the shutoff means and an elapsed time from the start of power supply; When a signal is output, a voltage drive signal is output again to output the voltage detection means. A voltage abnormality determination means that outputs a low voltage detection-time voltage drop signal. The battery abnormality determination means drives the voltage / voltage detection means again. When a signal is output, after a predetermined time delay, a time delay means for outputting a drive signal to the voltage detection means, and the voltage abnormality determination means starts measuring a predetermined time when a voltage drop state is detected. Time measuring means for outputting a cut-off signal to the shut-off means after a lapse of a fixed time; return means for outputting a signal for returning the cut-off means to a gas supply enabled state; and input prohibition of a reset signal when a predetermined time has passed by the time measuring means. Return prohibition means.
[0020]
If the voltage detection means detects that the supply voltage of the battery power supply is lower than a predetermined voltage due to abnormal low temperature weather or the like even though the battery consumption is still small and the battery capacity is still sufficient, the notification means may display an error. In order to prevent abnormalities from being notified to gas companies, etc., the battery capacity estimating means calculates the consumption based on the time since the start of power supply of the battery power means and the number of times of shutting off / returning of the shutoff means which consumes the most battery capacity. When the remaining battery capacity is estimated and the voltage detection means outputs a low-battery signal within a predetermined consumption amount, a signal for driving the voltage detection means is output again. Since the voltage detecting means is driven after the lapse of time, the battery voltage is detected at a time lag from the time zone in which the voltage drop signal is detected, and if the battery capacity is sufficient, the normal battery voltage is detected. The lower detection is determined to be an erroneous signal, the time measurement by the time measurement means is kept in a stopped state so that the shutoff means is not driven, and the customer stops using the gas stove etc. As a result, the gas does not become unusable, the reliability is improved, and the usability is improved.
[0021]
Further, in order to achieve the above object, the present invention provides a battery power supply means for supplying power, a cutoff means for supplying and shutting off a gas medium, and a voltage detection means for monitoring a supply voltage of the battery power supply means and detecting a battery voltage. A battery capacity estimating means for estimating a battery consumption from the number of times of driving of the shutoff means and an elapsed time from the start of power supply; When a signal is output, a voltage drive signal is output again to output the voltage detection means. A voltage abnormality determination means that outputs a low voltage detection-time voltage drop signal. The battery abnormality determination means drives the voltage / voltage detection means again. A delay time varying means for outputting a drive signal to the voltage detecting means while varying a time for driving the voltage detecting means every time a signal is output; and A time measuring means for starting measurement of a predetermined time at the time of detecting a lower state and outputting a cut-off to the shut-off means after a predetermined time has elapsed, a return means for outputting a signal for returning the shut-off means to a gas supply enabled state, and the time measuring means A return prohibition unit that prohibits the input of a return signal when a predetermined time has elapsed.
[0022]
If the battery consumption is small and there is still enough battery capacity and abnormal low temperature weather in winter continues, if the supply voltage of the battery power supply is detected by the voltage detection means to be equal to or lower than the predetermined voltage, an abnormality is displayed by the notification means. To prevent the gas company from being notified of abnormalities, the amount of consumption by the battery capacity estimating means based on the time since the start of power supply of the battery power means and the number of times the shut-off means that consumes the most battery capacity have been cut off and returned. After calculating and estimating the remaining battery capacity, if the voltage detection means outputs a low battery signal when the consumption is within a predetermined amount, the voltage driving means is driven again by the voltage abnormality determination means to drive the voltage detection means again and accurately measure the battery voltage. Each time a signal is output, the delay time variable means operates with the signal and drives the voltage detection means in a different time zone each time. Since the time until the detection means is driven is re-determined and re-determined, if the battery capacity is sufficient, the level of the average driving capability per day can be determined and the battery voltage can be measured accurately, and as a result the normal battery Since the voltage is detected, the first battery drop detection is determined to be an erroneous signal, the time measurement by the time measurement means is kept in a stopped state and the cutoff means is not driven, and the customer is using a gas stove or the like to heat the heater. In this case, the gas is not stopped after a lapse of time due to an erroneous determination, and the gas cannot be used. Thus, the reliability is improved and the usability is improved.
[0023]
【Example】
Hereinafter, first, second, third, fourth, and fifth embodiments of the present invention will be described with reference to FIGS. 1, 2, 3, 4, 5, and 6. FIG. 1, 2, 3, 4, and 5, components having the same functions as those in FIG. 6 are denoted by the same reference numerals.
[0024]
(Example 1)
FIG. 1 shows a gas shut-off device according to a first embodiment of the present invention. Numeral 9 denotes control means for the gas shut-off device. Numeral 10 denotes voltage detecting means for measuring the battery voltage of the battery power supply means 2. That is, the output voltage of the battery power supply means 2 is monitored, and a normal signal is output when a voltage higher than a predetermined value is detected, and a voltage lowering signal is output when a voltage lowering is detected below the predetermined value. Numeral 11 denotes a battery capacity estimating means for calculating the battery consumption from the elapsed time from the start of power supply by the battery power supply means 2 and the average current consumption of the control means 9 stored and set in advance. Further, the consumption amount is calculated from the number of times of driving of the cut-off / return of the cut-off means 3 and the average current consumption, and is added to the consumption amount in the control means 9. Reference numeral 12 denotes a battery abnormality determination unit that determines whether the battery voltage is normal or low based on the battery capacity estimation value from the battery capacity estimation unit 11 and the voltage measurement value from the voltage detection unit 10, and determines that the battery voltage has dropped for the first time. At this time, the voltage detecting means 10 is driven again to measure the battery voltage. If the battery voltage is low again, a voltage drop signal is output, and if the voltage is normal, a normal signal is output. Reference numeral 13 denotes a time measuring means, which starts measuring time when a voltage drop signal is input, and outputs a signal for driving the cutoff means 3 after a predetermined time has elapsed. That is, the counting of the usable time of the gas shut-off device after the battery voltage drops is started. That is, the time period during which the safety monitoring of the usage state of the gas appliance can be performed within the normal voltage range is performed.
[0025]
Reference numeral 14 denotes a return means, which outputs a return signal of the shut-off means 3 to start gas supply to the shut-off means 3 when operated. Numeral 15 denotes a return prohibiting means, which determines whether or not to output a return signal from the return means 13 to the shutoff means 3. If the return signal is not in the return prohibition state, the output is made, and the cutoff means 3 is opened. When the measurement of the usable time by the time measuring means 18 is completed, that is, when the predetermined time has elapsed, the time measuring means 13 prohibits the return prohibiting means 14 from inputting the return instruction signal from the returning means 13 and the shut-off means 3 turns off the cut-off state. Keep it as it is. On the other hand, a battery voltage drop signal is output to the time measuring means 18, and before the time measuring means 18 reaches a predetermined time, a shut-off signal is output from the abnormality determining means 12 to the shut-off means 3 and the shut-off signal is output to the return inhibiting means 14. When the signal is input, the return prohibiting means 14 does not receive the return signal of the shutoff means 3 from the return means 13 thereafter, and keeps the cutoff state. Reference numeral 16 denotes a notification unit which displays a warning (LCD, LED element, etc.) when the time measurement unit 13 drives the shut-off unit 3 after a predetermined time has elapsed, when the battery abnormality determination unit 12 detects a low battery abnormality. Notify the user or gas company, or notify the gas security center using a communication line.
[0026]
Next, the operation of the above configuration will be described. A gas shut-off device will be installed to monitor the usage status of gas appliances by gas consumers. When the battery power supply unit 2 starts supplying power, the battery capacity estimating unit 11 calculates the consumption of the battery capacity from the elapsed time and the average current of the control device 9.
[0027]
Since the large current flows when the interruption means 3 is activated halfway, it is added to the consumption per operation. In this way, the consumption of the battery capacity is estimated. On the other hand, the voltage detection means 10 periodically monitors the voltage of the battery power supply means 2. When the voltage is equal to or lower than the predetermined voltage, a voltage drop signal is output to the voltage abnormality determination unit 12. If the voltage is equal to or higher than the predetermined voltage value, a normal signal is output to the battery abnormality determination means 12. The voltage abnormality determining means 12 determines whether or not the battery is in a voltage drop abnormal state from the battery capacity consumption from the battery capacity estimating means 11 and the voltage signal from the voltage detecting means 10.
[0028]
The voltage detecting means 10 may detect a voltage drop state under abnormal weather such as a winter cold wave. The voltage detecting means 10 operates periodically to measure the performance of the battery power supply means 2. However, if time is spent and the measurement is performed, the above-mentioned situation may occur. When a voltage drop signal is output from the voltage detecting means 10, the battery abnormality determining means 12 determines whether the battery capacity of the battery capacity estimating means 11 has been consumed by a predetermined value or more. In the case of several years after the installation, that is, when the battery consumption is small, a signal for driving the voltage detecting means 10 again is output. The voltage detecting means 10 checks the battery voltage when the re-drive signal is input. As a result, when a normal voltage is detected, that is, when a voltage value equal to or higher than a predetermined value is detected, a normal signal is output to the voltage abnormality determination unit 12. In this case, the first voltage drop signal from the voltage detecting means 10 is determined to be an erroneous signal, and is not an erroneous determination signal due to transient abnormal weather or the like, and is not determined to be voltage abnormal. The time measuring means 13 maintains the stopped state.
[0029]
On the other hand, for some reason, the battery operation capacity of the shut-off means 3 (total number of times of shut-off and return) and the battery consumption capacity are smaller than the elapsed time, and the voltage may drop due to flooding such as rainwater. May be output to the voltage abnormality determination means 12 and the voltage detection means 10 may be driven again to output the voltage reduction signal even if the battery voltage is confirmed. As described above, in the second case, the voltage abnormality determining unit 12 determines that the voltage is low, outputs a voltage low state signal to the time measuring unit 13, and starts time measurement. It also notifies the return prohibition means 15. Further, a warning display of the low battery voltage state is performed on the notification means 16 (the low battery state display is performed by an LCD element, an LED element, or the like).
[0030]
Further, the gas supply company is notified of the abnormal battery low state through a telephone line or the like. The time measuring means 18 counts the time when detecting the low battery state, and measures the usable time of the gas shut-off device after the low battery voltage. After counting for a predetermined time, the return prohibition means 14 disables the reception of the signal from the return means 13 and outputs a cutoff output to the cutoff means 3. In this way, by stopping the gas supply thereafter, it is notified that the safe use time of the gas shut-off device has elapsed. In this state, the reception of the return signal from the return means 14 to return from the cutoff state is prohibited, and the gas supply stopped state is maintained. The notification means 16 notifies the customer and the gas supply company that gas cannot be supplied unless the gas shut-off device itself is replaced thereafter.
[0031]
Here, when the voltage of the battery power supply means 2 is detected by the voltage detection means 10 in a weather environment such as a transient abnormal low temperature, the voltage may be erroneously determined to be low even though the battery capacity is sufficient. If an erroneous determination is made, measurement of the time measuring means 16 is started, or if the apparatus is left for a predetermined time, a shut-off signal is output to the shut-off means 3 and a battery voltage drop shut-off state is set to disable the return. Need to be prevented. Without immediately starting the operation of the time measuring means 13 by the voltage abnormality determining means 12, the voltage detecting means 10 is driven again and the battery voltage is confirmed again. Avoid misjudgment.
[0032]
In this way, if the battery power of the gas shut-off device is erroneously detected as being equal to or less than the predetermined value by the voltage detecting means 15 due to environmental factors such as abnormal low temperature even though the battery capacity is sufficient, the battery voltage is confirmed again and prevented. The gas company does not need to replace the gas shut-off device unnecessarily, and the number of unnecessary dispatches can be reduced, so that safety and usability are greatly improved.
[0033]
(Example 2)
FIG. 2 shows a gas shut-off device according to a second embodiment of the present invention. 2, components having the same functions as those in FIGS. 1, 3, 4, 5, and 6 are denoted by the same reference numerals, and description thereof is omitted.
[0034]
FIG. 2 shows a gas interrupting device according to a second embodiment of the present invention. The gas interrupting device is connected to the voltage abnormality judging device 12 so that the outputs of the voltage detecting device 10 and the battery capacity estimating device 11 are inputted. Even if the battery voltage drop signal is detected, if a signal indicating that the battery capacity is sufficiently remaining is output from the battery capacity estimation means 11, the voltage drop signal from the voltage detection means 10 is determined to be a signal. In addition, the voltage level of the battery power supply means 2 is determined to be normal, and a normal signal is output to the time measurement means 13, the return prohibition means 15, and the notification means 16, so that a warning display or the like is not performed.
[0035]
Next, the operation of the above configuration will be described. A gas shut-off device will be installed to monitor the usage status of gas appliances by gas consumers. When the battery power supply unit 2 starts supplying power, the battery capacity estimating unit 11 calculates the consumption of the battery capacity from the elapsed time and the average current of the control device 9.
[0036]
Since a large current flows when the interruption means 3 is activated halfway, it is added to the battery consumption for each activation. In this way, the consumption amount of the battery capacity is constantly estimated. On the other hand, the voltage detection means 10 periodically monitors the voltage of the battery power supply means 2. When a voltage lower than a predetermined voltage is detected, a voltage drop signal is output to the voltage abnormality determining means 12. If the voltage is equal to or higher than the predetermined voltage value, a normal signal is output to the battery abnormality determination means 12. The voltage abnormality determining means 12 determines whether or not the battery is in a voltage drop abnormal state from the battery capacity consumption from the battery capacity estimating means 11 and the voltage signal from the voltage detecting means 10.
[0037]
When the winter cold wave comes and the temperature becomes abnormally low, the voltage detecting means 1 may detect a temporary voltage drop level of the battery power supply means 2. When a voltage drop signal is output from the voltage detecting means 10, the battery abnormality determining means 12 determines whether the battery capacity of the battery capacity estimating means 11 has been consumed by a predetermined value or more. That is, a signal for driving the voltage detecting means 10 again is output. When the re-drive signal is input, the voltage detecting means 10 checks the battery voltage again. In the case of several years after the installation, that is, when the battery consumption is still small, and when a normal voltage is detected, that is, when a voltage value equal to or more than a predetermined value is detected, a normal signal is output to the voltage abnormality determination unit 12. In this case, the first voltage drop signal from the voltage detection means 10 is determined to be an erroneous signal, and the battery power supply means 2 is not an erroneous determination signal due to a drop caused by transient abnormal weather and the like, and is not determined to be voltage abnormal. Therefore, the time measuring means 13 maintains the stopped state as it is.
[0038]
On the other hand, for some reason, the battery operation capacity of the shut-off means 3 (total number of times of shut-off and return) and the battery consumption capacity are smaller than the elapsed time, and the voltage may drop due to flooding such as rainwater. May be output to the voltage abnormality determination means 12 and the voltage detection means 10 may be driven again to output the voltage reduction signal even if the battery voltage is confirmed. As described above, in the second case, the voltage abnormality determining unit 12 determines that the voltage is low, outputs a voltage low state signal to the time measuring unit 13, and starts time measurement. It also notifies the return prohibition means 15. Further, a warning display of the low battery voltage state is performed on the notification means 16 (the low battery state display is performed by an LCD element, an LED element, or the like).
[0039]
Further, the gas supply company is notified of the abnormal battery low state through a telephone line or the like. The time measuring means 18 counts the time when detecting the low battery state, and measures the usable time of the gas shut-off device after the low battery voltage. After counting for a predetermined time, the return prohibition means 14 disables the reception of the signal from the return means 13 and outputs a cutoff output to the cutoff means 3. In this way, by stopping the gas supply thereafter, it is notified that the safe use time of the gas shut-off device has elapsed. In this state, the reception of the return signal from the return means 14 to return from the cutoff state is prohibited, and the gas supply stopped state is maintained. The notification means 16 notifies the customer and the gas supply company that gas cannot be supplied unless the gas shut-off device itself is replaced thereafter.
[0040]
Here, when the voltage of the battery power supply means 2 is detected by the voltage detection means 10 in a weather environment such as a transient abnormal low temperature, the voltage may be erroneously determined to be low even though the battery capacity is sufficient. If an erroneous determination is made, measurement of the time measuring means 16 is started, or if the apparatus is left for a predetermined time, a shut-off signal is output to the shut-off means 3 and a battery voltage drop shut-off state is set to disable the return. Need to be prevented. By checking the estimated value of the battery capacity from the battery capacity estimating means 11 instead of immediately starting the operation of the time measuring means 13 by the voltage abnormality determining means 12, the voltage drop signal is determined to be an erroneous signal, and Avoid misjudgment as abnormal.
[0041]
In this way, even if the battery power of the gas shut-off device is erroneously detected as a predetermined value or less by the voltage detection means 15 due to environmental factors such as abnormal low temperature even though the battery capacity is sufficient, the remaining capacity of the battery power supply means 2 at all times, that is, Since it is determined whether the signal is an erroneous signal from the past consumption, the capacity of the battery power supply means 2 is not wasted as much as possible, and the gas company does not needlessly replace the gas shut-off device and reduce the number of unnecessary dispatches. This greatly improves safety and usability.
[0042]
(Example 3)
FIG. 3 shows a gas shut-off device according to a third embodiment of the present invention. 3, components having the same functions as those in FIGS. 1, 2, 4, 5, and 6 are denoted by the same reference numerals, and description thereof is omitted.
[0043]
FIG. 3 shows a gas shut-off device according to a third embodiment of the present invention. Numeral 17 denotes a flow rate detecting means for measuring the amount of gas used by a gas appliance at a gas consumer. Reference numeral 18 denotes an external device, which outputs a gas leak detection signal detected by a gas leak alarm, a determination signal as to whether or not the pressure is reduced by a pressure sensor, and a signal when an earthquake is detected by a seismic sensor or the like. Collectively referred to as external devices.
[0044]
19 is an abnormality determining means for determining whether the gas flow rate detected by the flow rate detecting means 17 is an abnormal flow rate, or an external device means 18 for determining whether an abnormal gas leak, a decrease in gas pressure, or an abnormal earthquake. I do. As a result, when an abnormal use of the gas appliance (determined by a flow rate or the like) or an abnormality caused by an external device is detected, a drive signal of the shut-off unit 3 is output to the shut-off unit 3 to stop gas supply.
[0045]
Next, the operation of the above configuration will be described. A gas shut-off device will be installed to monitor the usage status of gas appliances by gas consumers. When the battery power supply unit 2 starts supplying power, the battery capacity estimating unit 11 calculates the consumption of the battery capacity from the elapsed time and the average current of the control device 9.
[0046]
Since the large current flows when the interruption means 3 is activated halfway, it is added to the consumption per operation.
[0047]
In this way, the consumption of the battery capacity is estimated. On the other hand, the voltage detection means 10 periodically monitors the voltage of the battery power supply means 2. When the voltage is equal to or lower than the predetermined voltage, a voltage drop signal is output to the voltage abnormality determination unit 12. If the voltage is equal to or higher than the predetermined voltage value, a normal signal is output to the battery abnormality determination means 12. The voltage abnormality determining means 12 determines whether or not the battery is in a voltage drop abnormal state from the battery capacity consumption from the battery capacity estimating means 11 and the voltage signal from the voltage detecting means 10.
[0048]
The voltage detecting means 10 may detect a voltage drop state under abnormal weather such as a winter cold wave. When a voltage drop signal is output from the voltage detecting means 10, the battery abnormality determining means 12 determines whether the battery capacity of the battery capacity estimating means 11 has been consumed by a predetermined value or more.
[0049]
In the case of several years after the installation, that is, when the battery consumption is small, a signal for driving the voltage detecting means 10 again is output. The voltage detecting means 10 checks the battery voltage when the re-drive signal is input. As a result, when a normal voltage is detected, that is, when a voltage value equal to or higher than a predetermined value is detected, a normal signal is output to the voltage abnormality determination unit 12. In this case, the first voltage drop signal from the voltage detecting means 10 is determined to be an erroneous signal, and is not an erroneous determination signal due to transient abnormal weather or the like, and is not determined to be voltage abnormal. The time measuring means 13 maintains the stopped state.
[0050]
On the other hand, for some reason, the battery operation capacity of the shut-off means 3 (total number of times of shut-off and return) and the battery consumption capacity are smaller than the elapsed time, and the voltage may drop due to flooding such as rainwater. May be output to the voltage abnormality determination means 12 and the voltage detection means 10 may be driven again to output the voltage reduction signal even if the battery voltage is confirmed. When the voltage drops again for the second time as described above, the voltage abnormality determining unit 12 determines that the voltage is low, outputs a voltage low state signal to the time measuring unit 13, and starts time measurement. In such a case, if an abnormal battery consumption occurs, it is safer to stop the gas supply early and replace the gas shut-off device. Since the voltage drop state was detected again by the voltage check, if the gas consumer repeatedly uses the gas appliance abnormally thereafter, for example, if the gas appliance such as a stove is repeatedly used for an abnormally long time, If the cutoff means 3 is driven many times, the current consumption is larger than usual, but if it is used repeatedly, the battery consumption will be accelerated and the worst case will be when the cutoff is not performed. Therefore, the use state of the gas appliance is monitored by the flow rate detecting means 17, an abnormal gas flow rate is detected, and if it is determined that the abnormal level has been reached by the abnormality determining means 19, a shutoff signal is output to the shutoff means 3 and return. The prohibition means 15 is also notified. Thereafter, the return signal from the return means 14 is not received, and the gas appliance cannot be used. In this way, the gas company is notified by early abnormality detection.
[0051]
The notifying unit 16 performs a warning display of the low battery voltage state (displays the low battery state using an LCD element, an LED element, or the like). Further, the gas supply company is notified of the abnormal battery low state through a telephone line or the like. Here, if the abnormality determination unit 19 fails to detect the abnormality, the time measurement unit 18 detects the low battery state, counts the time, and measures the usable time of the gas shut-off device after the low battery voltage. After counting for a predetermined time, the return prohibition means 14 disables the reception of the signal from the return means 13 and outputs a cutoff output to the cutoff means 3. In this way, by stopping the gas supply thereafter, it is notified that the safe use time of the gas shut-off device has elapsed. In this state, the reception of the return signal from the return means 14 to return from the cutoff state is prohibited, and the gas supply stopped state is maintained. The notification means 16 notifies the customer and the gas supply company that gas cannot be supplied unless the gas shut-off device itself is replaced thereafter.
[0052]
As described above, when the voltage of the battery power supply unit 2 is detected by the voltage detection unit 10 in a weather environment such as a transient abnormal low temperature, the voltage may be erroneously determined to be low even though the battery capacity is sufficient. If an erroneous determination is made, measurement of the time measuring means 16 is started, or if the apparatus is left for a predetermined time, a shut-off signal is output to the shut-off means 3 and a battery voltage drop shut-off state is set to disable the return. Need to be prevented. Without immediately starting the operation of the time measuring means 13 by the voltage abnormality determining means 12, the voltage detecting means 10 is driven again and the battery voltage is confirmed again. Avoid misjudgment. However, if the battery power of the gas shut-off device is detected below the predetermined value by the voltage detecting means 15 by reconfirming, a gas supply stop method is provided at an early stage. Safety and usability are greatly improved without being impossible.
[0053]
(Example 4)
FIG. 4 shows a gas shut-off device according to a fourth embodiment of the present invention. 4, components having the same functions as those in FIGS. 1, 2, 3, 5, and 6 are denoted by the same reference numerals, and description thereof is omitted.
[0054]
FIG. 4 shows a gas shut-off device according to a fourth embodiment of the present invention. Reference numeral 20 denotes a time delay unit, which is connected to the voltage abnormality determination unit 12 so that outputs of the voltage detection unit 10 and the battery capacity estimation unit 11 are input. When the signal indicating that the battery capacity is sufficiently remaining is output from the battery capacity estimating means 11 and the voltage detecting means 10 detects the battery voltage drop signal, the voltage level of the battery power means 2 is checked again. For this purpose, a signal for driving the voltage detecting means 10 is output. At this time, the voltage detecting means 10 is driven with a certain time delay, and the voltage of the battery power supply means 2 is checked.
[0055]
Next, the operation of the above configuration will be described. A gas shut-off device will be installed to monitor the usage status of gas appliances by gas consumers. When the battery power supply unit 2 starts supplying power, the battery capacity estimating unit 11 calculates the consumption of the battery capacity from the elapsed time and the average current of the control device 9.
[0056]
Since a large current flows when the shut-off means 3 is activated halfway, the battery capacity consumption is calculated from the number of cut-offs and return times of the cut-off means 3 and the current consumption of the cut-off means, and is calculated as the current consumption per operation. In this way, the consumption of the battery capacity is estimated. On the other hand, the voltage detection means 10 periodically monitors the voltage of the battery power supply means 2. When the voltage is equal to or lower than the predetermined voltage, a voltage drop signal is output to the voltage abnormality determination unit 12. If the voltage is equal to or higher than the predetermined voltage value, a normal signal is output to the battery abnormality determination means 12. The voltage abnormality determining means 12 determines whether or not the battery is in a voltage drop abnormal state from the battery capacity consumption from the battery capacity estimating means 11 and the voltage signal from the voltage detecting means 10.
[0057]
The voltage detecting means 10 may detect a voltage drop state under abnormal weather such as a winter cold wave. When a voltage drop signal is output from the voltage detecting means 10, the battery abnormality determining means 12 determines whether the battery capacity of the battery capacity estimating means 11 has been consumed by a predetermined value or more.
[0058]
In the case of several years after the installation, that is, when the battery consumption is small, a signal for driving the voltage detection means 10 again is output to the time delay means 20. The time delay means 20 outputs a drive signal to the voltage detection means 10 with a delay for a predetermined time. The voltage detecting means 10 is driven to check the voltage by changing the time zone for checking the voltage. The time zone in which abnormally low temperatures are likely to occur is early in the morning, and the usage frequency of the gas appliance is extremely low. The driving ability of the battery power supply means 2 in the time zone in which the gas appliance is used most often is evaluated. There is a need. Therefore, after a predetermined time delay, the voltage detection means 10 checks the battery voltage when the re-drive signal is input. As a result, when a normal voltage is detected, that is, when a voltage value equal to or higher than a predetermined value is detected, a normal signal is output to the voltage abnormality determination unit 12. In this case, the first voltage drop signal from the voltage detecting means 10 is determined to be an erroneous signal, and is not an erroneous determination signal due to transient abnormal weather or the like, and is not determined to be voltage abnormal. The time measuring means 13 maintains the stopped state.
[0059]
On the other hand, for some reason, the battery operation capacity of the shut-off means 3 (total number of times of shut-off and return) and the battery consumption capacity are smaller than the elapsed time, and the voltage may drop due to flooding such as rainwater. May be output to the voltage abnormality determination means 12 and the voltage detection means 10 may be driven again to output the voltage reduction signal even if the battery voltage is confirmed. As described above, in the second case, the voltage abnormality determining unit 12 determines that the voltage is low, outputs a voltage low state signal to the time measuring unit 13, and starts time measurement. It also notifies the return prohibition means 15. Further, a warning display of the low battery voltage state is performed on the notification means 16 (the low battery state display is performed by an LCD element, an LED element, or the like).
[0060]
Further, the gas supply company is notified of the abnormal battery low state through a telephone line or the like. The time measuring means 18 counts the time when detecting the low battery state, and measures the usable time of the gas shut-off device after the low battery voltage. After counting for a predetermined time, the return prohibition means 14 disables the reception of the signal from the return means 13 and outputs a cutoff output to the cutoff means 3. In this way, by stopping the gas supply thereafter, it is notified that the safe use time of the gas shut-off device has elapsed. In this state, the reception of the return signal from the return means 14 to return from the cutoff state is prohibited, and the gas supply stopped state is maintained. The notification means 16 notifies the customer and the gas supply company that gas cannot be supplied unless the gas shut-off device itself is replaced thereafter.
[0061]
As described above, when the voltage of the battery power supply unit 2 is detected by the voltage detection unit 10 in a weather environment such as a transient abnormal low temperature, the voltage may be erroneously determined to be low even though the battery capacity is sufficient. If an erroneous determination is made, measurement of the time measuring means 16 is started, or if the apparatus is left for a predetermined time, a shut-off signal is output to the shut-off means 3 and a battery voltage drop shut-off state is set to disable the return. Need to be prevented. Therefore, even if the voltage abnormality determination means 12 does not immediately start the operation of the time measurement means 13 and a drop signal is input from the voltage detection means 10, the time delay means 20 drives the voltage detection means 10 again after a fixed time. When the battery voltage is confirmed again, the driving capability of the battery power supply means 2 can be determined in a time zone in which the original gas appliance is frequently used, and also in a winter time zone in which the temperature is relatively high, and the battery capacity is sufficient. Although the normal voltage value is detected, the first drop signal is determined to be an erroneous signal and is prevented from being erroneously determined to be a voltage drop abnormality, so that the gas company does not need to replace the gas shut-off device unnecessarily and the number of unnecessary dispatches And safety and usability are greatly improved.
[0062]
(Example 5)
FIG. 5 shows a gas shut-off device according to a fifth embodiment of the present invention. 5, components having the same functions as those in FIGS. 1, 2, 3, 4, and 6 are denoted by the same reference numerals, and description thereof is omitted.
[0063]
FIG. 5 shows a gas shut-off device according to a fifth embodiment of the present invention. Reference numeral 21 denotes a delay time varying unit, which is connected to the voltage abnormality determining unit 12 so that the outputs of the voltage detecting unit 10 and the battery capacity estimating unit 11 enter. When the signal indicating that the battery capacity is sufficient is output from the battery capacity estimation means 11 and the voltage detection means 10 detects the battery voltage drop signal, the voltage level of the battery power supply means 2 is checked again. For this purpose, a signal for re-driving the voltage detecting means 10 is output, and the voltage detecting means 10 is driven by varying the delay time. A case where the voltage detection means 10 detects the drop signal when the battery capacity is sufficiently left is likely to occur over a long period of winter, but every time the time period until the voltage detection means 10 is driven again is shifted, that is, Check the voltage by changing the delay time.
[0064]
Next, the operation of the above configuration will be described. A gas shut-off device will be installed to monitor the usage status of gas appliances by gas consumers. When the battery power supply unit 2 starts supplying power, the battery capacity estimating unit 11 calculates the consumption of the battery capacity from the elapsed time and the average current of the control device 9.
[0065]
Since a large current flows when the shut-off means 3 is activated halfway, the battery capacity consumption is calculated from the number of cut-offs and return times of the cut-off means 3 and the current consumption of the cut-off means, and is calculated as the current consumption per operation. In this way, the consumption of the battery capacity is estimated. On the other hand, the voltage detection means 10 periodically monitors the voltage of the battery power supply means 2. When the voltage is equal to or lower than the predetermined voltage, a voltage drop signal is output to the voltage abnormality determination unit 12. If the voltage is equal to or higher than the predetermined voltage value, a normal signal is output to the battery abnormality determination means 12. The voltage abnormality determining means 12 determines whether or not the battery is in a voltage drop abnormal state from the battery capacity consumption from the battery capacity estimating means 11 and the voltage signal from the voltage detecting means 10.
[0066]
The voltage detecting means 10 may detect a voltage drop state under abnormal weather such as a winter cold wave. In addition, since the cold wave hits many times in winter and abnormally low temperature occurs repeatedly, the above-mentioned thing may occur repeatedly. Each time a voltage drop signal is output from the voltage detecting means 10, the battery abnormality determining means 12 determines whether the battery capacity of the battery capacity estimating means 11 has been consumed by a predetermined value or more. If only a few years have passed since the gas shut-off device was installed, the battery consumption is usually small, but a signal for driving the voltage detection means 10 again is output to the delay time variable means 21. The delay time varying means 21 outputs a drive signal to the voltage detecting means 10 by varying the delay time every fixed time, for example, every time a signal for driving the voltage detecting means 10 is generated again. The driving capability is checked by driving the voltage detecting means 10 and changing the time zone for checking the voltage. The time zone in which abnormally low temperatures are likely to occur is early in the morning, and the frequency of use of gas appliances is extremely low. It is necessary to evaluate the average by changing the belt. Therefore, after a predetermined time delay, the voltage detection means 10 checks the battery voltage when the re-drive signal is input. As a result, when a normal voltage is detected, that is, when a voltage value equal to or higher than a predetermined value is detected, a normal signal is output to the voltage abnormality determination unit 12. In this case, the first voltage drop signal from the voltage detecting means 10 is determined to be an erroneous signal, and is not an erroneous determination signal due to transient abnormal weather or the like, and is not determined to be voltage abnormal. The time measuring means 13 maintains the stopped state.
[0067]
On the other hand, for some reason, the battery operation capacity of the shut-off means 3 (total number of times of shut-off and return) and the battery consumption capacity are smaller than the elapsed time, and the voltage may drop due to flooding such as rainwater. May be output to the voltage abnormality determination means 12 and the voltage detection means 10 may be driven again to output the voltage reduction signal even if the battery voltage is confirmed. As described above, in the second case, the voltage abnormality determining unit 12 determines that the voltage is low, outputs a voltage low state signal to the time measuring unit 13, and starts time measurement. It also notifies the return prohibition means 15. Further, a warning display of the low battery voltage state is performed on the notification means 16 (the low battery state display is performed by an LCD element, an LED element, or the like).
[0068]
Further, the gas supply company is notified of the abnormal battery low state through a telephone line or the like. The time measuring means 18 counts the time when detecting the low battery state, and measures the usable time of the gas shut-off device after the low battery voltage. After counting for a predetermined time, the return prohibition means 14 disables the reception of the signal from the return means 13 and outputs a cutoff output to the cutoff means 3. In this way, by stopping the gas supply thereafter, it is notified that the safe use time of the gas shut-off device has elapsed. In this state, the reception of the return signal from the return means 14 to return from the cutoff state is prohibited, and the gas supply stopped state is maintained. The notification means 16 notifies the customer and the gas supply company that gas cannot be supplied unless the gas shut-off device itself is replaced thereafter.
[0069]
As described above, when the voltage of the battery power supply means 2 is detected by the voltage detection means 10 in a weather environment such as a transient abnormal low temperature, the case where the battery capacity is sufficient and the voltage is erroneously determined to be a voltage drop repeatedly occurs. It's easy to do. If an erroneous determination is made, measurement of the time measuring means 16 is started, or if the apparatus is left for a predetermined time, a shut-off signal is output to the shut-off means 3 and a battery voltage drop shut-off state is set to disable the return. Need to be prevented. Therefore, the voltage abnormality judging means 12 does not immediately start the operation of the time measuring means 13 and even if a decrease signal is input from the repetitive voltage detecting means 10, the delay time varying means 21 varies the delay time each time. When the battery driving means 10 is driven again, and the battery voltage is confirmed again, the average driving capability of the battery power supply means 2 during the time period when the original gas appliance is frequently used is known, and the battery capacity is sufficient. Although the normal voltage value is detected, the first drop signal is determined to be an erroneous signal and is prevented from being erroneously determined to be a voltage drop abnormality, so that the gas company does not need to replace the gas shut-off device unnecessarily and the number of unnecessary dispatches And safety and usability are greatly improved.
[0070]
【The invention's effect】
As described above, according to the first aspect of the present invention, a battery power supply means for supplying power, a cutoff means for supplying and shutting off a gas medium, and a supply voltage of the battery power supply means are monitored to detect a battery voltage. Voltage detecting means, a battery capacity estimating means for estimating a battery consumption from the number of times of driving of the shutoff means and an elapsed time from the start of power supply, and a voltage detecting means for consuming the battery capacity estimating means within a predetermined range. A voltage abnormality judging means for driving the voltage detecting means again when a signal lower than a predetermined voltage is output and outputting a voltage drop signal at the time of low voltage detection; and starting a predetermined time measurement when the voltage abnormality judging means detects a voltage drop state A time measuring means for outputting a cut-off signal to the shut-off means after a lapse of a predetermined time; a return means for outputting a signal for returning the cut-off means to a gas supply enabled state; In this case, a return inhibit means is provided to inhibit the input of the return signal.If the battery consumption is small and there is still enough battery capacity, the supply voltage of the battery power supply is determined by the voltage detection means due to the influence of abnormal cold weather in winter. When it is detected that the voltage is lower than the voltage, the time after the power supply of the battery power supply is started or the most battery capacity is consumed in order to prevent the notification means from displaying an error or notifying the gas company etc. The battery capacity estimating means estimates the remaining battery capacity based on the number of times of shutting off / returning of the shutoff means, etc., and estimates the remaining battery capacity. As a result, when a normal voltage is detected, the first battery drop detection is determined to be an erroneous signal, the time measurement by the time measurement means is kept in a stopped state, the cutoff means is not driven, and the customer uses a gas stove or the like. During heating Usability reliability is increased rather than to become a gas stop elapsed time by misjudgment gas unusable state is extremely improved.
[0071]
As described above, according to the second aspect of the present invention, a battery power supply means for supplying power, a cutoff means for supplying and shutting off a gas medium, and a supply voltage of the battery power supply means are monitored to detect a battery voltage. Voltage detecting means, a battery capacity estimating means for estimating a battery consumption from the number of times of driving of the shutoff means and an elapsed time from the start of power supply, and a voltage detecting means for consuming the battery capacity estimating means within a predetermined range. A voltage abnormality determination unit that stops outputting a battery voltage reduction signal from the voltage detection unit when a signal that is equal to or lower than a predetermined voltage is output and outputs a signal when the battery consumption capacity is equal to or greater than a predetermined value. A time measuring means for measuring a predetermined time at the time of detection and outputting a cut-off to the shut-off means after a lapse of a predetermined time; a return means for outputting a signal for returning the shut-off means to a gas supply enabled state; Means for prohibiting the input of a return signal when a predetermined time has elapsed by means of means, the battery power consumption is small due to abnormal low temperature weather, etc. When the supply voltage is detected to be lower than the predetermined voltage, the time after the start of the power supply of the battery power supply unit or the time to prevent the abnormality from being displayed on the notification unit or being notified to the gas company etc. The battery capacity estimating means estimates the remaining battery capacity by estimating the remaining battery capacity from the number of times the shut-off means that consumes the battery capacity have been cut off and returned, etc. , The time measurement by the time measurement means is kept in a stopped state and the shut-off means is not driven, and the customer stops using the gas stove etc. To become a state is easy to use increased reliability is extremely improved without.
[0072]
As described above, according to the third aspect of the present invention, a battery power supply means for supplying power, a shutoff means for supplying and shutting off a gas medium, and a supply voltage of the battery power supply means are monitored to detect a battery voltage. Voltage detecting means for performing battery operation, battery capacity estimating means for estimating battery consumption from the number of times of driving of the interrupting means and elapsed time from power-on, and the voltage detecting means when the battery capacity estimating means has a consumed capacity within a predetermined range. A voltage abnormality determining means for driving the voltage detecting means again even when a signal of a predetermined voltage or less is output and continuing the time measurement stop of the time measuring means at the time of detecting a normal voltage and holding an input permission state to the return inhibiting means; A time measuring means for measuring a predetermined time when the voltage abnormality is detected by the voltage abnormality determining means; a return means for outputting a signal for returning the shutoff means to a gas supply enabled state; Flow rate detecting means, an external device means for detecting an abnormal state such as gas leak or earthquake, and a signal from the flow rate detecting means or the external device means to judge whether an abnormal gas appliance use state and determine abnormal use. Abnormality determination means for outputting a time interruption signal; and, when the time measurement means is measuring time, the flow rate detection means detects an abnormal flow rate, or the external device means detects an abnormal gas leak or an earthquake exceeding a predetermined level. And a return prohibition unit that outputs a cutoff signal and prohibits the input of a return signal, so that even if the time from the start of the power supply by the battery power supply is short, for example, rainwater or the like will be flooded for some reason and the battery will be consumed. In such a situation, if the voltage detection unit detects that the supply voltage of the battery power supply is equal to or lower than a predetermined voltage due to abnormal low temperature weather or the like under such circumstances, The battery capacity estimating means calculates the consumption based on the time after the start of power supply of the battery power supply and the number of times of shutoff / return of the shutoff means that consumes the most battery capacity, estimates the remaining battery capacity, and is determined to be within the predetermined consumption. In this case, even if the voltage detecting means outputs a low battery signal, the voltage detecting means is driven again to detect a low voltage state. When a gas leak is detected, or when a gas leak or abnormally large earthquake is detected, the shut-off means is driven to stop the gas supply and make it impossible to return, that is, the gas supply becomes impossible again. Prevents the battery from being consumed by repeated abnormal use such as continuous use for a long time, and prevents the gas from being unable to be stopped even if the shut-off condition is satisfied due to a gas leak error. Sex and faith Reliability is enhanced and usability is greatly improved.
[0073]
As described above, according to the fourth aspect of the present invention, a battery power supply means for supplying power, a cutoff means for supplying and shutting off a gas medium, and a supply voltage of the battery power supply means are monitored to detect a battery voltage. Voltage detecting means, a battery capacity estimating means for estimating a battery consumption from the number of times of driving of the shutoff means and an elapsed time from the start of power supply, and a voltage detecting means for consuming the battery capacity estimating means within a predetermined range. When a signal that is lower than a predetermined voltage is output, a voltage abnormality determination unit that outputs a low voltage detection-time voltage drop signal when a signal for driving the voltage detection unit is output again, and the voltage / voltage detection unit again performs the voltage / voltage detection. A time delay means for outputting a drive signal to the voltage detection means after a predetermined time delay when a signal for driving the means is output, and a predetermined time measurement when a voltage drop state is detected by the voltage abnormality determination means After a predetermined time has elapsed, a time measuring means for shut-off output to the shut-off means, a return means for outputting a signal for returning the shut-off means to the gas supply enabled state, and a reset signal when a predetermined time has elapsed by the time measuring means. There is provided a return prohibiting means for prohibiting input, and it is assumed that the supply voltage of the battery power supply is lower than a predetermined voltage by the voltage detecting means due to abnormal low temperature weather etc. although the battery consumption is small and there is still sufficient battery capacity. If it is detected, the time after the start of power supply of the battery power supply or the shutoff of the shutoff means that consumes the most battery capacity should be prevented in order to prevent the abnormality from being displayed on the notification means or being notified to the gas company etc. The battery capacity estimation means estimates the remaining battery capacity based on the number of times of return, etc., and estimates the remaining battery capacity. If the voltage detection means outputs a low battery signal within the predetermined consumption, a signal for driving the voltage detection means is output again. However, since the signal activates the time delay means and drives the voltage detection means after a lapse of a predetermined time, the battery voltage is detected in a time zone in which the gas appliance is frequently used, shifted from the time zone in which the voltage drop signal is detected. Therefore, if the battery capacity is sufficient, the normal battery voltage is detected.Therefore, the first battery drop detection is determined to be an erroneous signal, the time measurement by the time measurement means is kept in a stopped state, and the cutoff means is not driven. In addition, the time is not elapsed due to an erroneous determination during heating by a consumer using a gas stove or the like, and the gas is not stopped, so that the gas cannot be used. Therefore, the reliability is improved and the usability is improved.
[0074]
According to claim 5 of the present invention, as described above, a battery power supply means for supplying power, a cutoff means for supplying and shutting off a gas medium, and a supply voltage of the battery power supply means are monitored to detect a battery voltage. Voltage detecting means, a battery capacity estimating means for estimating a battery consumption from the number of times of driving of the shutoff means and an elapsed time from the start of power supply, and a voltage detecting means for consuming the battery capacity estimating means within a predetermined range. When a signal that is lower than a predetermined voltage is output, a voltage abnormality determination unit that outputs a low voltage detection-time voltage drop signal when a signal for driving the voltage detection unit is output again, and the voltage / voltage detection unit again performs the voltage / voltage detection. Delay time varying means for outputting a drive signal for the voltage detection means while varying the time for driving the voltage detection means every time a signal for driving the means is output, and the voltage abnormality determination means A time measuring means for starting measurement of a voltage drop state for a predetermined time upon detection and outputting a cut-off signal to the shut-off means after a lapse of a predetermined time; a return means for outputting a signal for returning the cut-off means to a gas supply enabled state; and the time measuring means And a return prohibition means for prohibiting the input of a return signal when a predetermined time has elapsed, and when the abnormal low temperature weather continues even though the battery consumption is small and there is still sufficient battery capacity, the battery power is supplied by the voltage detection means. It is easy to repeatedly detect that the voltage is lower than the predetermined voltage. In order to prevent the abnormal display by the notification means and the notification of the abnormality to the gas company, etc., the power supply of the battery power supply means is required. The battery capacity estimating means calculates the remaining battery capacity based on the time since the start of supply and the number of times the shut-off means that consumes the most battery capacity has been cut off and returned, and estimates the remaining battery capacity. When the output means outputs a low battery signal, a voltage drive signal is output from the voltage abnormality determination means in order to drive the voltage detection means again to accurately measure the battery voltage, and since this is likely to occur frequently in winter. When this occurs, the delay time variable means is activated by the signal and the voltage detection means is driven by varying the predetermined time value each time it occurs, so that the battery voltage is delayed in various time zones by being delayed from the time zone in which the voltage drop signal is detected. The delay time varying means varies the time until the voltage detecting means is driven every time the low voltage signal is inputted, and the determination is made again. Since the voltage can be measured and the normal battery voltage is detected as a result, the first battery drop detection is determined to be an erroneous signal, the time measurement by the time measurement means is kept in a stopped state and the cutoff means is not driven, and However, the use of a gas stove or the like does not prevent the gas from being stopped due to the lapse of time due to an erroneous determination during heating, resulting in a gas unusable state, thereby improving reliability and improving usability.
[Brief description of the drawings]
FIG. 1 is a control block diagram of a gas shutoff device according to a first embodiment of the present invention.
FIG. 2 is a control block diagram of a gas cutoff device according to a second embodiment of the present invention.
FIG. 3 is a control block diagram of a gas cutoff device according to a third embodiment of the present invention.
FIG. 4 is a control block diagram of a gas cutoff device according to a fourth embodiment of the present invention.
FIG. 5 is a control block diagram of a gas cutoff device according to a fifth embodiment of the present invention.
FIG. 6 is a control block diagram of a conventional gas shut-off device.
[Explanation of symbols]
2 Battery power means
3 Blocking means
10 Voltage detection means
11 Battery capacity estimation means
12 Battery abnormality determination means
13 Time measurement means
14 Return means
15 Return prohibition means
16 Notification means
17 Flow rate detecting means
18 External device means
19 Abnormality judgment means
20 time delay means
21 Delay time variable means

Claims (5)

電源を供給する電池電源手段と、ガス媒体の供給や遮断を行う遮断手段と、前記電池電源手段の供給電圧を監視し電池電圧を検出する電圧検出手段と、前記遮断手段の駆動回数及び電源供給開始からの経過時間より電池消費量を推定する電池容量推定手段と、前記電池容量推定手段の消費容量が所定以内で前記電圧検出手段より所定電圧以下の信号が出力された場合再度前記電圧検出手段を駆動し低電圧検出時電圧低下信号を出力する電圧異常判定手段と、前記電圧異常判定手段で電圧低下状態を検出時所定時間計測開始し所定時間経過後前記遮断手段に遮断出力する時間計測手段と、前記遮断手段をガス供給可能状態に復帰させる信号を出力する復帰手段と、前記時間計測手段で所定時間経過した場合復帰信号を入力禁止とする復帰禁止手段とを備えたガス遮断装置。Battery power supply means for supplying power, interruption means for supplying and shutting off a gas medium, voltage detection means for monitoring the supply voltage of the battery power supply means and detecting the battery voltage, the number of times the interruption means is driven and power supply A battery capacity estimating means for estimating a battery consumption amount based on an elapsed time from the start; and a voltage lower than a predetermined voltage is output from the voltage detecting means when the consumed capacity of the battery capacity estimating means is within a predetermined value. A voltage abnormality determining means for outputting a voltage drop signal upon detection of a low voltage, and a time measuring means for starting measurement of a voltage drop state for a predetermined time when the voltage abnormality determination means detects the voltage drop state and outputting a cut-off signal to the cut-off means after a predetermined time has elapsed. Return means for outputting a signal for returning the shut-off means to the gas supply enabled state, and a return prohibition means for prohibiting the input of the return signal when a predetermined time has elapsed by the time measurement means. Gas cutoff apparatus equipped and. 電源を供給する電池電源手段と、ガス媒体の供給や遮断を行う遮断手段と、前記電池電源手段の供給電圧を監視し電池電圧を検出する電圧検出手段と、前記遮断手段の駆動回数及び電源供給開始からの経過時間より電池消費量を推定する電池容量推定手段と、前記電池容量推定手段の消費容量が所定以内で前記電圧検出手段より所定電圧以下の信号が出力された場合前記電圧検出手段からの電池電圧低下信号を出力停止し電池消費容量が所定以上の場合出力する電圧異常判定手段と、前記電圧異常判定手段で電圧低下状態を検出時所定時間計測し所定時間経過後前記遮断手段に遮断出力する時間計測手段と、前記遮断手段をガス供給可能状態に復帰させる信号を出力する復帰手段と、前記時間計測手段で所定時間経過した場合復帰信号を入力禁止とする復帰禁止手段とを備えたガス遮断装置。Battery power supply means for supplying power, interruption means for supplying and shutting off a gas medium, voltage detection means for monitoring the supply voltage of the battery power supply means and detecting the battery voltage, the number of times the interruption means is driven and power supply A battery capacity estimating means for estimating the battery consumption from the elapsed time from the start, and a signal of a predetermined voltage or less output from the voltage detecting means when the consumed capacity of the battery capacity estimating means is within a predetermined value. And a voltage abnormality determining means for outputting when the battery consumption capacity is equal to or greater than a predetermined value, and a voltage reduction state is measured by the voltage abnormality determining means for a predetermined time when the voltage reduction state is detected. A time measuring means for outputting, a return means for outputting a signal for returning the shut-off means to the gas supply enabled state, and a return signal when a predetermined time has elapsed by the time measuring means. Gas cutoff apparatus that includes a return inhibition unit to stop. 電源を供給する電池電源手段と、ガス媒体の供給や遮断を行う遮断手段と、前記電池電源手段の供給電圧を監視し電池電圧を検出する電圧検出手段と、前記遮断手段の駆動回数及び電源供給開始からの経過時間より電池消費量を推定する電池容量推定手段と、前記電池容量推定手段の消費容量が所定以内の場合前記電圧検出手段より所定電圧以下の信号が出力されても再度前記電圧検出手段を駆動し正常電圧検出時前記時間計測手段を時間計測停止を継続し前記復帰禁止手段へ入力許可状態を保持する電圧異常判定手段と、前記電圧異常判定手段で電圧低下状態を検出時所定時間計測し所定時間経過時遮断出力する時間計測手段と、前記遮断手段をガス供給可能状態に復帰させる信号を出力する復帰手段と、ガス供給量を計測する流量検出手段と、ガス漏れや地震などの異常状態を検出する外部機器手段と、前記流量検出手段や前記外部機器手段からの信号より異常なガス器具の使用状態かを判定し異常使用と判定時遮断信号を出力する異常判定手段と、前記時間計測手段で時間計測中前記流量検出手段で異常流量を検出したり又前記外部機器手段により異常ガス漏れや所定以上の地震検知した場合前記遮断手段に遮断信号を出力すると共に復帰信号を入力禁止とする復帰禁止手段とを備えたガス遮断装置。Battery power supply means for supplying power, interruption means for supplying and shutting off a gas medium, voltage detection means for monitoring the supply voltage of the battery power supply means and detecting the battery voltage, the number of times the interruption means is driven and power supply Battery capacity estimating means for estimating the battery consumption from the elapsed time from the start; and when the consumed capacity of the battery capacity estimating means is within a predetermined range, the voltage detecting means detects the voltage again even if a signal of a predetermined voltage or less is output from the voltage detecting means. A voltage abnormality judging means for driving the means and continuing the time measurement stop of the time measuring means at the time of detecting the normal voltage and holding the input permission state to the return inhibiting means; and a predetermined time when the voltage abnormality judging means detects the voltage drop state Time measuring means for measuring and outputting a cut-off signal when a predetermined time has elapsed, return means for outputting a signal for returning the cut-off means to a gas supply enabled state, and a flow detecting means for measuring a gas supply amount And external device means for detecting an abnormal state such as gas leak or earthquake, and a signal from the flow rate detecting means or the external device means for judging whether the gas appliance is in an abnormal use state, and generating an abnormal use and a shut-off signal at the time of the judgment. An abnormality judging means to output, and an abnormal flow rate is detected by the flow rate detecting means during the time measurement by the time measuring means, or an abnormal gas leak or an earthquake signal exceeding a predetermined level is detected by the external device means. A gas shut-off device comprising output prohibition means for outputting and inputting a reset signal. 電源を供給する電池電源手段と、ガス媒体の供給や遮断を行う遮断手段と、前記電池電源手段の供給電圧を監視し電池電圧を検出する電圧検出手段と、前記遮断手段の駆動回数及び電源供給開始からの経過時間より電池消費量を推定する電池容量推定手段と、前記電池容量推定手段の消費容量が所定以内で前記電圧検出手段より所定電圧以下の信号が出力された場合再度前記電圧検出手段を駆動する信号を出力すると共低電圧検出時電圧低下信号を出力する電圧異常判定手段と、前記電池異常判定手段で再度前記電圧電圧検出手段を駆動する信号を出力されると所定時間遅延後前記電圧検出手段に駆動信号を出力する時間遅延手段と、前記電圧異常判定手段で電圧低下状態を検出時所定時間計測開始し所定時間経過後前記遮断手段に遮断出力する時間計測手段と、前記遮断手段をガス供給可能状態に復帰させる信号を出力する復帰手段と、前記時間計測手段で所定時間経過した場合復帰信号を入力禁止とする復帰禁止手段とを備えたガス遮断装置。Battery power supply means for supplying power, interruption means for supplying and shutting off a gas medium, voltage detection means for monitoring the supply voltage of the battery power supply means and detecting the battery voltage, the number of times the interruption means is driven and power supply A battery capacity estimating means for estimating a battery consumption amount based on an elapsed time from the start; and a voltage lower than a predetermined voltage is output from the voltage detecting means when the consumed capacity of the battery capacity estimating means is within a predetermined value. A voltage abnormality determination unit that outputs a low voltage detection-time voltage drop signal when a signal for driving the voltage is output, and a signal that drives the voltage / voltage detection unit is output again by the battery abnormality determination unit. A time delay means for outputting a drive signal to the voltage detection means, a measurement of a predetermined time is started when the voltage abnormality is detected by the voltage abnormality determination means, and a cut-off output to the cut-off means after a predetermined time has elapsed A time measuring means, a return means for outputting a signal for returning the shut-off means to the gas supply enabled state, and a return prohibiting means for prohibiting the input of the return signal when a predetermined time has elapsed by the time measuring means. Shut-off device. 電源を供給する電池電源手段と、ガス媒体の供給や遮断を行う遮断手段と、前記電池電源手段の供給電圧を監視し電池電圧を検出する電圧検出手段と、前記遮断手段の駆動回数及び電源供給開始からの経過時間より電池消費量を推定する電池容量推定手段と、前記電池容量推定手段の消費容量が所定以内で前記電圧検出手段より所定電圧以下の信号が出力された場合再度前記電圧検出手段を駆動する信号を出力すると共低電圧検出時電圧低下信号を出力する電圧異常判定手段と、前記電池異常判定手段で再度前記電圧電圧検出手段を駆動する信号を出力される毎に前記電圧検出手段を駆動する時間を可変しつつ前記電圧検出手段を駆動信号を出力する遅延時間可変手段と、前記電圧異常判定手段で電圧低下状態を検出時所定時間計測開始し所定時間経過後前記遮断手段に遮断出力する時間計測手段と、前記遮断手段をガス供給可能状態に復帰させる信号を出力する復帰手段と、前記時間計測手段で所定時間経過した場合復帰信号を入力禁止とする復帰禁止手段とを備えたガス遮断装置。Battery power supply means for supplying power, interruption means for supplying and shutting off a gas medium, voltage detection means for monitoring the supply voltage of the battery power supply means and detecting the battery voltage, the number of times the interruption means is driven and power supply A battery capacity estimating means for estimating a battery consumption amount based on an elapsed time from the start; and a voltage lower than a predetermined voltage is output from the voltage detecting means when the consumed capacity of the battery capacity estimating means is within a predetermined value. A voltage abnormality determining means for outputting a voltage drop signal upon detection of a low voltage when a signal for driving the voltage is output, and the voltage detecting means each time a signal for driving the voltage / voltage detection means is output again by the battery abnormality determination means. A delay time varying means for outputting a drive signal to the voltage detecting means while varying a driving time of the voltage detecting means; A time measuring means for shut-off output to the shut-off means after a lapse of time, a return means for outputting a signal for returning the shut-off means to a gas supply enabled state, and an input prohibition for a reset signal when a predetermined time has passed by the time measuring means. A gas shut-off device provided with a return prohibition unit that performs a return operation.
JP2002290093A 2002-10-02 2002-10-02 Gas circuit breaker Pending JP2004126935A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008234280A (en) * 2007-03-20 2008-10-02 Matsushita Electric Ind Co Ltd Electronic device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008234280A (en) * 2007-03-20 2008-10-02 Matsushita Electric Ind Co Ltd Electronic device

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