JP4695271B2 - Tunnel disaster prevention equipment - Google Patents

Tunnel disaster prevention equipment Download PDF

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Publication number
JP4695271B2
JP4695271B2 JP2001031977A JP2001031977A JP4695271B2 JP 4695271 B2 JP4695271 B2 JP 4695271B2 JP 2001031977 A JP2001031977 A JP 2001031977A JP 2001031977 A JP2001031977 A JP 2001031977A JP 4695271 B2 JP4695271 B2 JP 4695271B2
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Japan
Prior art keywords
automatic valve
disaster prevention
response time
response
tunnel
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JP2001031977A
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Japanese (ja)
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JP2002233589A (en
Inventor
光栄 五十嵐
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Hochiki Corp
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Hochiki Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、防災受信盤からの制御指令信号に基づいて中継器からトンネル内に設置した水噴霧ヘッドに対し設けた自動弁を開閉制御するトンネル防災設備に関する。
【0002】
【従来技術】
従来、自動車専用道路のトンネルに使用される防災設備として、防災受信盤からトンネル内に引き出された伝送路に接続している複数の端末機器にアドレスを割当て、アドレスを指定した各種のコマンドの送信により火災検知器の情報収集による火災監視や、火災を判断した際に自動弁を開制御して水噴霧ヘッドから消火用水を放水させる制御等を行う所謂R型伝送方式をとっている。
【0003】
このようトンネル防災設備の中の水噴霧設備にあっては、防災受信盤にて弁開操作を行うと自動弁に対する開方向の駆動電源がオンして開制御する。自動弁の2次側には圧力スイッチが設置されており、自動弁を開放すると二次圧力を受けて圧力スイッチがオンし、このオン信号を防災受信盤に取り込むことで、自動弁の開放結果を表示している。
【0004】
また防災受信盤にて弁閉操作を行うと自動弁に対する閉方向の駆動電源がオンして閉制御する。この場合は、自動弁の開放による圧力スイッチのオフ信号を防災受信盤に取り込むことで、自動弁の閉鎖結果を表示している。
【0005】
【発明が解決しようとする課題】
ところで、トンネル防災設備の水噴霧制御に使用している自動弁は、経年変化等により劣化すると、自動弁の開閉時間が長くなる。そこで、自動弁開御御してから圧力スイッチのオン信号がリタ−ンするまでの開応答時間と、自動弁を閉制御してから圧力スイッチのオフ信号がリターンするまでの閉応答時間を測定し、この測定時間から自動弁の機能劣化の度合いを判断し、例えば所定時間を超えるような場合には、自動弁の交換修理などのメンテナンスを行っている。
【0006】
しかしながら、R型伝送方式を採用したトンネル防災設備では、自動弁及び圧力スイッチは、伝送機能を備えた中継器に接続され、更に伝送路を介して防災受信盤と接続されており、防災受信盤からの制御指令による開応答時間および閉応答時間の測定には、伝送による遅延時間が含まれてしまい、正しい開閉応答時間が測定できない問題点があった。
【0007】
本発明は、伝送遅延を受けることなく正確に開閉応答時間を計測して適切に自動弁の性能を評価可能とするトンネル防災設備を提供することを目的とする。
【0008】
【課題を解決するための手段】
この目的を達成するため本発明は、次のように構成する。本発明は、トンネル内の区画毎に複数設けられた水噴霧ヘッドに対して放水制御を行う自動弁と、防災受信盤から引き出された伝送路に接続され防災受信盤からの制御指令信号に基づいて自動弁を開閉制御する中継器とを備えたトンネル防災設備であって、中継器に、自動弁の開応答時間と閉応答時間を計測して保持する計測部と、防災受信盤から計測要求指令信号を受信した際に、計測部に保持している開応答時間および閉応答時間を応答送信する応答部とを備えたことを特徴とする。
【0009】
ここで計測部は、防災受信盤からの開制御指令信号を受信した際に自動弁を開制御して圧力スイッチのオン応答が得られるまでの開応答時間を計測し、続いて防災受信盤からの閉制御指令信号を受信した際に自動弁を閉制御して圧力スイッチのオフ応答が得られるまでの閉応答時間を計測する。
【0010】
また中継器に自動弁を開閉動作させる手動スイッチを設け、計測部は、手動スイッチの開操作により自動弁を開制御して圧力スイッチのオン応答が得られるまでの開応答時間を計測し、続いて手動スイッチの閉操作により自動弁を閉制御して圧力スイッチのオフ応答が得られるまでの閉応答時間を計測するようにしてもよい。
【0011】
このように本発明は、中継器に対する防災受信盤からの開閉制御指令と、この制御指令に基づく中継器による自動弁の開閉応答時間の計測を分離することで、自動弁の開閉応答時間の計測値に、防災受信盤と中継器との間の伝送による遅延時間が入らず、自動弁の開応答時間および閉応答時間を正確に計測し、メンテナンスのための自動弁の機能評価を適切に行いことができる。
【0012】
また防災受信盤側で複数の自動弁ついて制御開始から圧力スイッチ応答までの時間計測の管理を行う必要がないため、防災受信盤のプログラム構成やメモリ管理が簡潔なものとなる。
【0013】
【発明の実施の形態】
図1は本発明によるトンネル防災設備の設備構成の説明図である。
【0014】
図1において、防災受信盤1はトンネル設備の監視室に設置されており、防災受信盤1から上りトンネルに対し上りトンネル伝送路2aが引き出され、また下りトンネルに対し下りトンネル伝送路2bが引き出されており、この実施形態では上りトンネル伝送路2a側を示している。
【0015】
上りトンネル伝送路2aとしては、防災受信盤1より検知器ライン3と中継器ライン4が引き出されている。検知器ライン3には所定間隔で火災検知器5が接続され、また中継器ライン4にはトンネル内の所定区間ごとに複数設けられた水噴霧に対し放水制御を行うための中継器6を接続している。
【0016】
中継器6には後の説明で明らかにするように、水噴霧設備の放水制御を行う自動弁が接続される。更に検知器ライン3及び中継器ライン4に対しては、一定間隔例えば800mの間隔ごとに中継増幅盤7が設けられている。
【0017】
更に防災受信盤1に対してはポンプ制御盤8が設けられ、水噴霧用ヘッドの放水制御の際には、自動弁を開制御し、ポンプ制御盤8より図示しない消火ポンプを運転して、加圧消火用水をトンネル内の水噴霧ヘッドに供給して水噴霧制御を行うようにしている。
【0018】
防災受信盤1と火災検知器5の間、及び防災受信盤1と中継器6及び中継増幅盤7との間の制御指令信号及び応答信号の伝送は、それぞれに固有のアドレスが予め割り当てられており、制御対象または応答先を指定したアドレスを含む制御指令信号または応答信号を検知器ライン3及び中継器ライン4を介して伝送し、受信側にあっては自己アドレスに一致するアドレスの制御指令信号または応答信号を受けて必要な処理を行うようになる。
【0019】
この防災受信盤1と火災検知器5、中継器6、中継増幅盤7との間の伝送は、処理要求が発生した際にアドレスを含む制御指令信号または応答信号を送出する方式以外に、防災受信盤1から一定の時間間隔でポーリングコマンドを端末側に送信し、ポーリングコマンドによる制御とポーリングコマンドに対する応答コマンドによる応答信号の返送を行う方式としてもよい。
【0020】
図2は図1の防災受信盤1の機能構成を中継器ライン4に接続した水噴霧設備系統と共に示したブロック図である。
【0021】
図2において、防災受信盤1には主制御部10が設けられ、主制御部10に対しては伝送制御部11が設けられている。伝送制御部11からはトンネル40に対し検知器ライン3と中継器ライン4が引き出され、この実施形態にあっては中継器ライン4側を示している。
【0022】
トンネル40に引き出された中継器ライン4には、トンネル内の区間毎に複数の水噴霧ヘッド13に対し放水制御を行う自動弁12を制御する中継器6が接続されている。またトンネル40内の中継器ラインの途中には中継増幅盤7が設けられ、防災受信盤1と中継器6との間の伝送信号の中継増幅を行っている。
【0023】
防災受信盤1の主制御部10に対してはバスを介して操作表示制御部14が設けられ、この操作表示制御部14に対しては操作部14a、表示部14b及び音響部14cが接続されている。
【0024】
ここで操作部14aには、トンネル40の中継器6に接続している自動弁12を開閉制御するための開制御スイッチ20と閉制御スイッチ21が設けられている。
【0025】
更に主制御部10に対してはバスを介してプリンタ17が設けられ、防災受信盤1の監視制御に必要な各種のデータをプリントアウトできるようにしている。更にまた主制御部10に対しては通信制御部18を介して外部のCRT19が接続され、防災受信盤1の監視制御に必要な各種の受信情報をCRT19上に表示できるようにしている。
【0026】
主制御部10にはプログラム制御により実現される監視処理部15と自動弁管理部16の機能が設けられている。
【0027】
監視処理部15は図1に示した検知器ライン3に接続している火災検知器5の呼出しで火災を判断すると、火災の警報表示を行う。このような火災表示によってトンネル40内の火災発生区間が特定できることから、操作部14aにより水噴霧制御を行う区間を選択して開制御スイッチ20を操作すると、指定された区間の中継器6のアドレスを指定した自動弁開制御コマンド(自動弁開制御指令信号)が伝送制御部11より中継器ライン4に送出され、自己アドレスが一致した中継器6で受信され、自動弁12を開制御し、消火ポンプから供給されている加圧消火用水を水噴霧ヘッド13に供給して水噴霧制御を行う。
【0028】
主制御部10に設けた自動弁管理部16は、トンネル40内の水噴霧設備、即ち各中継器6により制御する自動弁12の機能管理を行っている。例えば操作部14aのスイッチ操作により自動弁12の機能テストを指示すると、自動弁管理部16が起動し、トンネル40内に設置している各区間の中継器6のアドレスを順次指定して自動弁12の開制御指令コマンドを送出し、所定の時間経過後に自動弁12の閉制御指令コマンドを送信する。
【0029】
更に機能試験のための開閉制御指令コマンドを送出し終わった後、自動弁管理部16は、計測要求指令コマンドを中継器6のアドレスを順次指定して送出し、これによって自動弁12の開閉制御指令コマンドに伴う自動弁12の開閉制御を通じて計測された後に保存されている自動弁開応答時間T1と自動弁閉応答時間T2の計測結果を中継器6から応答受信し、メモリに記憶保存するようにしている。
【0030】
以上の計測要求指令については、開閉制御後順次送出してもよいし、計測表示時に一括して各中継器に送出してもよい。
【0031】
そして全ての中継器6から計測結果の応答が得られたならば、計測された開応答T1または閉応答時間T2を予め定めた閾値時間と比較し、閾値時間を超える開または閉応答時間となる自動弁12については保守点検が必要である旨のメンテナンス情報の出力表示を行う。
【0032】
図3は図2の中継器6の機能構成を自動弁12側と共に示したブロック図である。
【0033】
図3において、防災受信盤1から引き出された中継器ライン4に対し中継器6が接続されている。中継器6には伝送送受信回路22、CPU23、自動弁開閉電源供給回路24、信号受信回路25及び手動操作部26が設けられている。この手動操作部26には中継器6において自動弁12を現場で開閉制御できるように、開制御スイッチ27と閉制御スイッチ28が設けられている。
【0034】
CPU23にはプログラム制御により計測部31と応答部32が設けられている。計測部31は、防災受信盤1から自動弁開制御指令コマンドを受信した際に、自動弁開閉電源供給回路24の作動により開電源を自動弁12の電動弁29に供給する。
【0035】
この自動弁12の開制御と同時にタイマを起動し、自動弁12の2次側に設けている圧力スイッチ30のオン信号を信号受信回路25で受信したときにタイマを停止し、このタイマ時間T1を自動弁開応答時間として保存する。
【0036】
また防災受信盤1から自動弁閉制御コマンドを受信した際には、自動弁開閉電源供給回路24を作動して自動弁開電源を自動弁12の電動弁29に供給して、開制御の際とは逆方向に作動して閉制御を行う。この自動弁開制御の開始と同時に、計測部31にあってはタイマをスタートし、信号受信回路25で自動弁12の2次側に設けている圧力スイッチ30のオフ信号の受信でタイマを停止し、この閉制御の際のタイマ時間T2を自動弁閉応答時間として計測部31は保存する。
【0037】
このように計測部31には、最後に制御された自動弁12の開/閉の応答時間が記録されることになる。
【0038】
応答部32は防災受信盤1より計測要求指令コマンドを受信した際に、計測部31に保存している自動弁12の開応答時間T1と閉応答時間T2を読み出して応答送信する。
【0039】
このように本発明の中継器6にあっては、防災受信盤1からの弁開閉制御指令による自動弁12の開閉制御を通じた開応答時間T1と閉応答時間T2の計測と、計測した開応答時間T1と閉応答時間T2の防災受信盤1への応答を分離していることで、自動弁12の開応答時間T1及び閉応答時間T2の計測に防災受信盤1と中継器6との間の伝送による遅延時間が含まれることを防いでいる。
【0040】
図4は図3の中継器6における制御処理のフローチャートである。図4において、中継器6のCPU23は、ステップS1で圧力スイッチ30による端末信号がオンか否かチェックしており、もし端末信号がオンであればステップS2に進み、防災受信盤1に対し伝送処理を行う。
【0041】
またステップS3で防災受信盤1からの開制御指令の受信の有無をチェックしており、開制御指令を受信すると、ステップS4で自動弁開制御処理を実行する。またステップS5で防災受信盤1からの閉制御指令の有無をチェックしており、閉制御指令があるとステップS6に進み、自動弁閉制御処理を実行する。
【0042】
更にステップS7で防災受信盤1からの計測要求指令の有無をチェックしており、計測要求指令があるとステップS8に進み、ステップS4及びステップS6の自動弁12の開制御処理、自動弁12の閉制御処理を通じて計測されたタイマ値である開応答時間T1と閉応答時間T2の送信処理を行う。
【0043】
図5は図4におけるステップS4の自動弁開制御処理の詳細を示したフローチャートである。図5の自動弁12の開制御処理にあっては、まずステップS1で自動弁12に対し自動弁開閉電源供給回路24より開電源出力を行い、自動弁12に設けている電動弁29を開方向に駆動する。
【0044】
この開電源出力と同時にステップS2でタイマ値T1をT1=0に初期化した後、ステップS3でタイマカウントを開始する。ステップS3のタイマカウント中にあっては、ステップS4で圧力スイッチ30の信号がオンか否かチェックしており、圧力スイッチ信号がオンになると、ステップS5でタイマ値T1を保持し、これを自動弁12の開応答時間とする。
【0045】
図6は図4のステップS6における自動弁閉制御処理の詳細を示したフローチャートである。この自動弁12の閉制御処理にあっては、ステップS1で自動弁12に対し自動弁開閉電源供給回路24より閉電源出力を行い、同時にステップS2でタイマ値T2をT2=0に初期化して、ステップS3でタイマカウントを開始する。
【0046】
このタイマカウント中にあっては、ステップS4で圧力スイッチ30のスイッチ信号がオフとなるか否かチェックしており、圧力スイッチ30がオフになるとステップS5に進んで、そのときのタイマ値T2を閉応答時間として保持する。
【0047】
このような本発明における中継器6に対する自動弁12の開閉応答時間の計測処理は、図2の主制御部10に設けた自動弁管理部16により定期的に行う以外に、係員がトンネル内を点検しながら中継器6において行うこともできる。
【0048】
即ち、手動操作部26の開制御スイッチ27を操作して手動で自動弁12の開制御を行い、開制御を行なった後に閉制御スイッチ28を操作して自動弁12の閉制御を行う。
【0049】
これに伴い計測部30で開制御から圧力スイッチ信号がオンとなるまでの開応答時間T1と自動弁12の閉制御から圧力スイッチ信号がオフとなるまでの閉応答時間T2を計測して保持される。
【0050】
このようにして得られた自動弁12の開及び閉の各応答時間T1,T2は、プリンタ17でプリントアウトしたり、CRT19上に表示できる。更に自動弁管理部16で収集した開及び閉の各応答時間T1,T2を予め定めた閾値時間と比較し、メンテナンスの有無を判断して表示するようにしてもよい。
【0051】
例えば自動弁12の開応答時間T1が20秒を超えた場合、また自動弁12の閉応答時間T2については60秒を超えた場合について、それぞれメンテナンスを必要としてメッセージ表示を行うようにする。
【0052】
なお、上記の実施形態は、自動弁の開制御または閉制御に対する応答信号として自動弁の2次側に設けている圧力スイッチのスイッチ信号のオン,オフを使用しているが、これ以外に自動弁に設けている開閉検出用のリミットスイッチからの信号を用いるようにしてもよい。
【0053】
また本発明はその目的と利点を損なわない適宜の変形を含み、更に上記の実施形態に示した数値による限定は受けない。
【0054】
【発明の効果】
以上説明してきたように本発明によれば、自動弁を開閉制御する中継器に対する防災受信盤からの開閉制御指令と、この開閉制御指令に基づく中継器による自動弁の開閉制御に伴う開応答時間と閉応答時間の計測を分離することで、自動弁の開応答時間と閉応答時間の計測値に防災受信盤と中継器との間の伝送による遅延時間が入らず、自動弁の開応答時間及び閉応答時間を正確に計測することができ、メンテナンスのため自動弁の機能評価を適切に行うことができる。
【0055】
また防災受信盤側で複数の自動弁について開応答時間及び閉応答時間を計測するための制御開始から圧力スイッチ応答までの時間計測の管理を行う必要がないため、防災受信盤のプログラム構成やメモリ管理を簡潔にすることができる。
【図面の簡単な説明】
【図1】本発明によるトンネル防災設備の説明図
【図2 】図1の防災受信盤の機能を水噴霧制御設備系統と共に示したブロック図
【図3】図2の中継器の機能を自動弁と共に示したブロッック図
【図4】図3の中継器制御のフローチャート
【図5】開応答時間の計測を含む図4の自動弁開制御処理のフローチャート
【図6 】閉応答時間の計測を含む図4の自動弁閉開制御処理のフローチャート
【符号の説明】
1:防災受信盤
2a:上りトンネル伝送路
2b:下りトンネル伝送路
3:検知器ライン
4:中継器ライン
5:火災検知器
6:中継器
7:中継増幅盤
8:ポンプ制御盤
10:主制御
11:伝送制御部
12:自動弁
13:水噴霧ヘッド
14:操作表示制御部
14a:操作部
14b:表示部
14c:音響部
15:監視処理部
16:自動弁管理部
17:プリンタ
18:通信制御部
19:CRT
20,27:開制御スイッチ
21,28:閉制御スイッチ
22:伝送送受信回路
23:CPU
24:自動弁開閉電源供給回路
25:信号受信回路
26:手動操作部
29:電動弁
30:圧力スイッチ
31:計測部
32:応答部
40:トンネル
40a,40b:区画
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tunnel disaster prevention facility that controls opening and closing of an automatic valve provided for a water spray head installed in a tunnel from a repeater based on a control command signal from a disaster prevention receiving board.
[0002]
[Prior art]
Conventionally, as disaster prevention equipment used for tunnels on automobile roads, addresses are assigned to multiple terminal devices connected to the transmission path drawn from the disaster prevention reception panel into the tunnel, and various commands with designated addresses are sent. The so-called R-type transmission method is employed in which fire monitoring is performed by collecting information from the fire detector, and when the fire is judged, the automatic valve is controlled to open and the fire spray water is discharged from the water spray head.
[0003]
In such a water spray facility in the tunnel disaster prevention facility, when the valve opening operation is performed at the disaster prevention reception panel, the drive power in the opening direction with respect to the automatic valve is turned on and controlled to open. A pressure switch is installed on the secondary side of the automatic valve, and when the automatic valve is opened, the pressure switch is turned on in response to the secondary pressure. Is displayed.
[0004]
When the valve closing operation is performed at the disaster prevention reception board, the driving power in the closing direction with respect to the automatic valve is turned on to perform the closing control. In this case, the result of closing the automatic valve is displayed by taking the pressure switch OFF signal due to the opening of the automatic valve into the disaster prevention receiver.
[0005]
[Problems to be solved by the invention]
By the way, when the automatic valve used for the water spray control of the tunnel disaster prevention equipment deteriorates due to secular change or the like, the open / close time of the automatic valve becomes long. Therefore, the automatic valve after your Hirakigo ON signal of the pressure switch Rita - and opening response time to down, the closing response time of the automatic valve after closing control to off signal of the pressure switch returns Measurement is made, and the degree of functional deterioration of the automatic valve is determined from this measurement time. For example, when a predetermined time is exceeded, maintenance such as replacement and repair of the automatic valve is performed.
[0006]
However, in the tunnel disaster prevention equipment adopting the R-type transmission system, the automatic valve and the pressure switch are connected to a repeater having a transmission function, and further connected to the disaster prevention reception board via the transmission path. The measurement of the open response time and the close response time according to the control command from the transmission includes a delay time due to transmission, and there is a problem that a correct switching response time cannot be measured.
[0007]
An object of this invention is to provide the tunnel disaster prevention equipment which can measure the opening-and-closing response time correctly, and can evaluate the performance of an automatic valve appropriately, without receiving a transmission delay.
[0008]
[Means for Solving the Problems]
In order to achieve this object, the present invention is configured as follows. The present invention is based on an automatic valve for performing water discharge control on a plurality of water spray heads provided for each section in a tunnel, and a control command signal from a disaster prevention receiving board connected to a transmission line drawn from the disaster prevention receiving board. A tunnel disaster prevention facility equipped with a repeater that controls the opening and closing of the automatic valve, and a measurement unit that measures and holds the open response time and the close response time of the automatic valve on the repeater, and a measurement request from the disaster prevention reception board And a response unit that transmits an open response time and a closed response time held in the measurement unit when a command signal is received.
[0009]
Here, the measurement unit measures the open response time until the ON response of the pressure switch is obtained by opening the automatic valve when receiving the open control command signal from the disaster prevention reception board, and then from the disaster prevention reception board When the closing control command signal is received, the automatic valve is closed to measure the closing response time until the pressure switch OFF response is obtained.
[0010]
In addition, a manual switch that opens and closes the automatic valve is provided in the repeater, and the measuring unit measures the open response time until the ON response of the pressure switch is obtained by opening the automatic valve by opening the manual switch. Then, the close response time from when the automatic valve is controlled to be closed by the closing operation of the manual switch until the OFF response of the pressure switch is obtained may be measured.
[0011]
As described above, the present invention separates the opening / closing control command from the disaster prevention reception panel for the repeater and the measurement of the opening / closing response time of the automatic valve by the repeater based on this control command, thereby measuring the opening / closing response time of the automatic valve. The value does not include the delay time due to the transmission between the disaster prevention receiver and the repeater, and the automatic valve open and close response times are accurately measured, and the automatic valve function evaluation for maintenance is performed appropriately. be able to.
[0012]
Since there is no need to manage the time measurement from the control start with a plurality of automatic valve in disaster prevention receiving platen side to a pressure switch response, the program configuration and memory management disaster reception plate becomes concise.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is an explanatory diagram of the equipment configuration of a tunnel disaster prevention equipment according to the present invention.
[0014]
In FIG. 1, a disaster prevention reception board 1 is installed in a monitoring room of a tunnel facility, and an upstream tunnel transmission path 2a is drawn out from the disaster prevention reception board 1 to the upstream tunnel, and a downstream tunnel transmission path 2b is extracted from the downstream tunnel. In this embodiment, the upstream tunnel transmission path 2a side is shown.
[0015]
As the upstream tunnel transmission line 2 a, the detector line 3 and the repeater line 4 are drawn from the disaster prevention receiving board 1. Fire detectors 5 are connected to the detector line 3 at predetermined intervals, and relay devices 6 are connected to the relay device line 4 to perform water discharge control for a plurality of water sprays provided for each predetermined section in the tunnel. is doing.
[0016]
As will be clarified in the following description, the relay 6 is connected to an automatic valve for performing water discharge control of the water spray facility. Further, for the detector line 3 and the repeater line 4, a relay amplifier board 7 is provided at regular intervals, for example, every 800 m.
[0017]
Further, a pump control panel 8 is provided for the disaster prevention receiving board 1, and when the water spraying control of the water spray head is performed, an automatic valve is opened and a fire pump (not shown) is operated from the pump control panel 8. Water spray control is performed by supplying pressurized fire-fighting water to a water spray head in the tunnel.
[0018]
The transmission of the control command signal and the response signal between the disaster prevention receiving board 1 and the fire detector 5 and between the disaster prevention receiving board 1 and the repeater 6 and the relay amplification board 7 is assigned a unique address in advance. A control command signal or response signal including an address designating a control target or a response destination is transmitted via the detector line 3 and the repeater line 4, and on the receiving side, a control command of an address matching the self address is transmitted. Upon receiving the signal or the response signal, necessary processing is performed.
[0019]
The transmission between the disaster prevention receiving board 1 and the fire detector 5, the repeater 6, and the relay amplification board 7 is not limited to a method of sending a control command signal or a response signal including an address when a processing request occurs. A method may be used in which a polling command is transmitted from the receiving board 1 to the terminal side at regular time intervals, and a response signal is returned by a control command by the polling command and a response command to the polling command.
[0020]
FIG. 2 is a block diagram showing the functional configuration of the disaster prevention reception board 1 of FIG. 1 together with the water spray equipment system connected to the repeater line 4.
[0021]
In FIG. 2, the disaster prevention receiver 1 is provided with a main control unit 10, and a transmission control unit 11 is provided for the main control unit 10. The detector line 3 and the repeater line 4 are drawn out from the transmission control unit 11 to the tunnel 40, and in this embodiment, the repeater line 4 side is shown.
[0022]
The repeater line 4 drawn out to the tunnel 40 is connected to the repeater 6 that controls the automatic valve 12 that controls the water discharge to the plurality of water spray heads 13 for each section in the tunnel. Also in the middle of the relay line 4 in the tunnel 40 relay amplification Release 7 is provided, it is carried out repeating and amplifying the transmission signals between the disaster prevention receiving plate 1 and the repeater 6.
[0023]
An operation display control unit 14 is provided to the main control unit 10 of the disaster prevention receiving board 1 via a bus, and an operation unit 14a, a display unit 14b, and an acoustic unit 14c are connected to the operation display control unit 14. ing.
[0024]
Here, the operation unit 14 a is provided with an open control switch 20 and a close control switch 21 for opening and closing the automatic valve 12 connected to the repeater 6 of the tunnel 40.
[0025]
Further, a printer 17 is provided for the main control unit 10 via a bus so that various data necessary for monitoring control of the disaster prevention receiving board 1 can be printed out. Furthermore, an external CRT 19 is connected to the main control unit 10 via the communication control unit 18 so that various reception information necessary for monitoring control of the disaster prevention receiving panel 1 can be displayed on the CRT 19.
[0026]
The main control unit 10 is provided with functions of a monitoring processing unit 15 and an automatic valve management unit 16 realized by program control.
[0027]
When the monitoring processing unit 15 determines a fire by calling the fire detector 5 connected to the detector line 3 shown in FIG. 1, it displays a fire alarm. Since the fire occurrence section in the tunnel 40 can be specified by such a fire display, when the section for performing the water spray control is selected by the operation unit 14a and the open control switch 20 is operated, the address of the repeater 6 in the designated section. An automatic valve opening control command (automatic valve opening control command signal) designating is sent to the repeater line 4 from the transmission control unit 11 and received by the repeater 6 having the same self address, and the automatic valve 12 is controlled to open. Water spray control is performed by supplying pressurized water for fire extinguishing supplied from the fire pump to the water spray head 13.
[0028]
The automatic valve management unit 16 provided in the main control unit 10 performs function management of the water spray equipment in the tunnel 40, that is, the automatic valve 12 controlled by each relay unit 6. For example, when the function test of the automatic valve 12 is instructed by operating the switch of the operation unit 14a, the automatic valve management unit 16 is activated, and the addresses of the repeaters 6 installed in the tunnel 40 are sequentially specified to automatically control the automatic valve. 12 open control command commands are sent, and after a predetermined time has passed, a close control command command for the automatic valve 12 is transmitted.
[0029]
Further, after sending the opening / closing control command command for the function test, the automatic valve management unit 16 sends the measurement request command command by sequentially specifying the address of the repeater 6, thereby opening / closing control of the automatic valve 12. The measurement results of the automatic valve opening response time T1 and the automatic valve closing response time T2 stored after being measured through the opening / closing control of the automatic valve 12 in response to the command command are received from the repeater 6 as responses, and stored in the memory. I have to.
[0030]
The above measurement request commands may be sent sequentially after the opening / closing control, or may be sent to each repeater at the same time during measurement display.
[0031]
If responses of measurement results are obtained from all the repeaters 6, the measured open response T1 or close response time T2 is compared with a predetermined threshold time, and the open or closed response time exceeds the threshold time. For the automatic valve 12, the maintenance information indicating that maintenance inspection is required is displayed.
[0032]
FIG. 3 is a block diagram showing the functional configuration of the repeater 6 of FIG. 2 together with the automatic valve 12 side.
[0033]
In FIG. 3, a repeater 6 is connected to a repeater line 4 drawn from the disaster prevention receiving board 1. The repeater 6 includes a transmission / reception circuit 22, a CPU 23, an automatic valve opening / closing power supply circuit 24, a signal reception circuit 25, and a manual operation unit 26. The manual operation unit 26 is provided with an open control switch 27 and a close control switch 28 so that the automatic valve 12 can be controlled to open and close in the relay unit 6 on site.
[0034]
The CPU 23 is provided with a measurement unit 31 and a response unit 32 by program control. When receiving the automatic valve opening control command command from the disaster prevention receiving board 1, the measuring unit 31 supplies the open power to the electric valve 29 of the automatic valve 12 by the operation of the automatic valve opening / closing power supply circuit 24.
[0035]
A timer is started simultaneously with the opening control of the automatic valve 12 , and when the ON signal of the pressure switch 30 provided on the secondary side of the automatic valve 12 is received by the signal receiving circuit 25, the timer is stopped, and this timer time T1 Is stored as the automatic valve opening response time.
[0036]
When the automatic valve closing control command is received from the disaster prevention receiving board 1, the automatic valve opening / closing power supply circuit 24 is operated to supply the automatic valve opening power to the motor-operated valve 29 of the automatic valve 12 for the opening control. Acts in the opposite direction to perform the closing control. Simultaneously with the start of this automatic valve opening control, the measuring unit 31 starts a timer, and the signal receiving circuit 25 stops the timer upon receipt of an OFF signal of the pressure switch 30 provided on the secondary side of the automatic valve 12. Then, the measuring unit 31 stores the timer time T2 in the closing control as the automatic valve closing response time.
[0037]
Thus, the response time of opening / closing of the automatic valve 12 controlled last is recorded in the measuring unit 31 .
[0038]
When the response unit 32 receives the measurement request command command from the disaster prevention receiving board 1, the response unit 32 reads out the open response time T1 and the close response time T2 of the automatic valve 12 stored in the measurement unit 31, and transmits a response.
[0039]
Thus, in the repeater 6 of the present invention, the measurement of the open response time T1 and the close response time T2 through the open / close control of the automatic valve 12 based on the valve open / close control command from the disaster prevention receiving board 1 and the measured open response By separating the response to the disaster prevention receiver 1 of the time T1 and the closing response time T2, between the disaster prevention receiver 1 and the repeater 6 for the measurement of the open response time T1 and the close response time T2 of the automatic valve 12 This prevents the delay time due to transmission of data from being included.
[0040]
FIG. 4 is a flowchart of the control process in the repeater 6 of FIG. In FIG. 4, the CPU 23 of the repeater 6 checks whether or not the terminal signal by the pressure switch 30 is ON in step S <b> 1. If the terminal signal is ON, the process proceeds to step S <b> 2 and is transmitted to the disaster prevention receiver 1. Process.
[0041]
In step S3, it is checked whether or not an open control command is received from the disaster prevention receiving board 1. When the open control command is received, an automatic valve opening control process is executed in step S4. In step S5, the presence / absence of a closing control command from the disaster prevention receiving board 1 is checked. If there is a closing control command, the process proceeds to step S6 to execute an automatic valve closing control process.
[0042]
Furthermore it is checked whether the measurement request command from the disaster prevention receiving board 1 in step S7, when there is a measurement request command proceeds to step S8, the opening control process of the automatic valve 12 in step S4 and step S6, the automatic valve 12 Transmission processing of the open response time T1 and the close response time T2, which are timer values measured through the close control process, is performed.
[0043]
FIG. 5 is a flowchart showing details of the automatic valve opening control process in step S4 in FIG. In the opening control process of the automatic valve 12 in FIG. 5, first, in step S1, an open power supply output is output from the automatic valve opening / closing power supply circuit 24 to the automatic valve 12, and the electric valve 29 provided in the automatic valve 12 is opened. Drive in the direction.
[0044]
Simultaneously with the output of the open power source, the timer value T1 is initialized to T1 = 0 in step S2, and then the timer count is started in step S3. During the timer count in step S3, it is checked in step S4 whether the signal of the pressure switch 30 is on. When the pressure switch signal is turned on, the timer value T1 is held in step S5 and automatically The open response time of the valve 12 is used.
[0045]
FIG. 6 is a flowchart showing details of the automatic valve closing control process in step S6 of FIG. In the closed control process of the automatic valve 12 performs閉電source output from the automatic valve opened and closed power supply circuit 24 to automatic valve 12 in step S1, initializes the timer value T2 to T2 = 0 in step S2 at the same time In step S3, timer counting is started.
[0046]
During the timer count, it is checked in step S4 whether or not the switch signal of the pressure switch 30 is turned off. If the pressure switch 30 is turned off, the process proceeds to step S5, and the timer value T2 at that time is set. Hold as the closed response time.
[0047]
In this invention, the measurement processing of the open / close response time of the automatic valve 12 with respect to the repeater 6 is periodically performed by the automatic valve management unit 16 provided in the main control unit 10 of FIG. It can also be performed in the repeater 6 while checking.
[0048]
That is, the opening control switch 27 of the manual operation unit 26 is operated to manually open the automatic valve 12, and after the opening control is performed, the closing control switch 28 is operated to perform the closing control of the automatic valve 12.
[0049]
Along with this, the measurement unit 30 measures and holds the open response time T1 from the open control to the pressure switch signal being turned on and the close response time T2 from the close control of the automatic valve 12 to the pressure switch signal being turned off. The
[0050]
The response times T1 and T2 for opening and closing the automatic valve 12 thus obtained can be printed out by the printer 17 or displayed on the CRT 19. Furthermore, the response times T1 and T2 of opening and closing collected by the automatic valve management unit 16 may be compared with a predetermined threshold time, and the presence or absence of maintenance may be determined and displayed.
[0051]
For example, when the opening response time T1 of the automatic valve 12 exceeds 20 seconds, and when the closing response time T2 of the automatic valve 12 exceeds 60 seconds, a message is displayed indicating that maintenance is required.
[0052]
In the above embodiment, the ON / OFF of the switch signal of the pressure switch provided on the secondary side of the automatic valve is used as a response signal for the opening control or closing control of the automatic valve. You may make it use the signal from the limit switch for opening / closing detection provided in the valve.
[0053]
The present invention includes appropriate modifications that do not impair the object and advantages thereof, and is not limited by the numerical values shown in the above embodiments.
[0054]
【The invention's effect】
As described above, according to the present invention, the open / close control command from the disaster prevention reception panel for the repeater that controls the open / close of the automatic valve, and the open response time associated with the automatic valve open / close control by the repeater based on the open / close control command By separating the measurement of the response time and the response time of the automatic valve, the measured value of the response time and the response time of the automatic valve does not include the delay time due to the transmission between the disaster prevention receiver and the repeater. In addition, the close response time can be accurately measured, and the function evaluation of the automatic valve can be appropriately performed for maintenance.
[0055]
In addition, it is not necessary to manage the time measurement from the start of control to the pressure switch response for measuring the open response time and the close response time for multiple automatic valves on the disaster prevention receiver side. Management can be simplified.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a tunnel disaster prevention equipment according to the present invention. FIG. 2 is a block diagram showing the function of the disaster prevention reception panel of FIG. 1 together with a water spray control equipment system. FIG. 4 is a block diagram showing the repeater control of FIG. 3. FIG. 5 is a flowchart of the automatic valve opening control process of FIG. 4 including the measurement of the open response time. FIG. 6 is a diagram including the measurement of the close response time. Flowchart of automatic valve closing control processing of No. 4 [Explanation of symbols]
1: Disaster prevention receiving board 2a: Up tunnel transmission path 2b: Down tunnel transmission path 3: Detector line 4: Repeater line 5: Fire detector 6: Repeater 7: Relay amplifier board 8: Pump control panel 10: Main control 11: Transmission control unit 12: Automatic valve 13: Water spray head 14: Operation display control unit 14a: Operation unit 14b: Display unit 14c: Acoustic unit 15: Monitoring processing unit 16: Automatic valve management unit 17: Printer 18: Communication control Part 19: CRT
20, 27: Open control switch 21, 28: Close control switch 22: Transmission transmission / reception circuit 23: CPU
24: Automatic valve opening / closing power supply circuit 25: Signal receiving circuit 26: Manual operation unit 29: Electric valve 30: Pressure switch 31: Measuring unit 32: Response unit 40: Tunnel 40a, 40b: Section

Claims (3)

トンネル内の区画毎に複数設けられた水噴霧ヘッドに対して放水制御を行う自動弁と、防災受信盤から引き出された伝送路に接続され前記防災受信盤からの制御指令信号に基づいて前記自動弁を開閉制御する中継器とを備えたトンネル防災設備において、
前記中継器に、
前記自動弁の開応答時間と閉応答時間を計測して保持する計測部と、
前記防災受信盤から計測要求指令信号を受信した際に、前記計測部に保持している開応答時間および閉応答時間を前記防災受信盤に応答送信する応答部と、
を備えたことを特徴とするトンネル防災設備。
An automatic valve for performing water discharge control on a plurality of water spraying heads provided for each section in the tunnel, and the automatic operation based on a control command signal from the disaster prevention receiving board connected to a transmission line drawn from the disaster prevention receiving board. In a tunnel disaster prevention facility with a repeater that controls opening and closing of valves
In the repeater,
A measurement unit that measures and holds the open response time and the close response time of the automatic valve;
When receiving a measurement request command signal from the disaster prevention receiving board, a response unit that responds to the disaster prevention receiving board with an open response time and a closed response time held in the measurement unit;
Tunnel disaster prevention equipment characterized by comprising.
請求項1記載のトンネル防災設備において、前記計測部は、前記防災受信盤からの開制御指令信号を受信した際に前記自動弁を開制御して圧力スイッチのオン応答が得られるまでの開応答時間を計測し、続いて防災受信盤からの閉制御指令信号を受信した際に前記自動弁を閉制御して圧力スイッチのオフ応答が得られるまでの閉応答時間を計測することを特徴とするトンネル防災設備。2. The tunnel disaster prevention facility according to claim 1, wherein the measuring unit opens the response until an ON response of the pressure switch is obtained by opening the automatic valve when receiving an opening control command signal from the disaster prevention receiving panel. Time is measured, and then, when a closing control command signal is received from the disaster prevention receiving board, the automatic valve is closed to measure the closing response time until an OFF response of the pressure switch is obtained. Tunnel disaster prevention equipment. 請求項1記載のトンネル防災設備において、前記中継器は、前記自動弁を開閉動作させる手動スイッチを備え、前記計測部は、前記手動スイッチの開操作により前記自動弁を開制御して圧力スイッチのオン応答が得られるまでの開応答時間を計測し、続いて前記手動スイッチの閉操作により前記自動弁を閉制御して圧力スイッチのオフ応答が得られるまでの閉応答時間を計測することを特徴とするトンネル防災設備。The tunnel disaster prevention facility according to claim 1, wherein the repeater includes a manual switch that opens and closes the automatic valve, and the measurement unit controls the opening of the automatic valve by opening the manual switch to open a pressure switch. The open response time until an on response is obtained is measured, and then the automatic valve is controlled to be closed by closing the manual switch to measure the close response time until the pressure switch is turned off. Tunnel disaster prevention equipment.
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JPH05172A (en) * 1991-06-21 1993-01-08 Yamatake Honeywell Co Ltd Automatic inspection apparatus for fire extinguishing installation
JPH06223279A (en) * 1993-01-26 1994-08-12 Nohmi Bosai Ltd Tunnel disaster preventing equipment
JPH10201873A (en) * 1997-01-20 1998-08-04 Hochiki Corp Tunnel disaster preventing system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05172A (en) * 1991-06-21 1993-01-08 Yamatake Honeywell Co Ltd Automatic inspection apparatus for fire extinguishing installation
JPH06223279A (en) * 1993-01-26 1994-08-12 Nohmi Bosai Ltd Tunnel disaster preventing equipment
JPH10201873A (en) * 1997-01-20 1998-08-04 Hochiki Corp Tunnel disaster preventing system

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