JP3757003B2

JP3757003B2 - Fire alarm system for apartment houses

Info

Publication number: JP3757003B2
Application number: JP24751296A
Authority: JP
Inventors: 好章不破; 諭小泉; 清明小山
Original assignee: Hochiki Corp
Current assignee: Hochiki Corp
Priority date: 1996-02-19
Filing date: 1996-09-19
Publication date: 2006-03-22
Anticipated expiration: 2016-09-19
Also published as: JPH09288783A

Description

【０００１】
【発明の属する技術分野】
本発明は、住戸毎に火災感知器、中継器、住戸用受信機、及びインターホン設備を設けて個別監視し、中央の管理人室等に住棟用受信機を設けて集中監視する共同住宅用火災報知システムに関する。
【０００２】
【従来の技術】
従来の共同住宅用の火災報知システムにあっては、住戸に設けられた火災感知器が発報すると、住戸内に設置している住宅情報盤（住戸用受信機）やドアホンで警報報知が行われる。同時に住宅情報盤やドアホンを介し直ちに管理人室等の中央に設置された防災情報を集中監視する住棟用受信機に発報信号が送られる。発報信号を受けた住棟用受信機は、例えば出火階及び直上階に設置されている地区ベルを鳴動して火災発生を報知する。
【０００３】
また、最近にあっては、地区ベルに代えて音声による警報システムが求められるようになって来ている。例えば特開平４−３５０８００号のシステムにあっては、火災発生時に管理人室等に設置した住棟用受信機からの発報移報信号の送出による制御で、出火階及び直上階等の警報報知を必要とする住戸に対し、玄関先に設置しているドアホン子器のスピーカを住棟用受信機からの音声警報用の信号線に切り替え「ウーウー、火災が発生しました」等の音声警報を出させている。
【０００４】
同時に住棟用受信機は、警報報知を必要とする各住戸内に設置している住宅情報盤に対しても発報移報信号を送り、住戸内でも警報報知を行わせる。
【０００５】
【発明が解決しようとする課題】
しかしながら、このような従来の共同住宅用火災報知システムにあっては、火災感知器が誤って発報した場合においても、発報移報信号は直ちに中央の住棟用受信機に送られ、警報を必要とする例えば出火階及び直上階の住戸の住宅情報盤での警報報知及びドアホン子器からの音声警報が行われることになるため、周辺の住戸の居住者や関係者等に多大な迷惑をかける可能性がある。
【０００６】
また、通常の住宅情報盤は、各住戸の電源で動作しているため、火災感知器が住宅情報盤に接続され電源を供給されて動作するようなシステムにあっては、住戸が空きになっている等で住戸の電源が切られている場合には、住宅情報盤及び火災感知器は電源の供給を受けることができず、その住戸での火災は全く監視できないという問題があった。
【０００７】
本発明は、このような従来の問題点に鑑みてなされたもので、火災感知器が誤って発報した場合の周辺住戸に対する警報報知を未然に防止すると共に、住戸側で電源が切られていても確実に火災が監視できる共同住宅用火災報知システム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。まず本発明は、各住戸に、少なくとも火災感知器、中継器及び住戸用受信機を設けると共に、管理人室等の中央に住棟用受信機を設け、火災感知器の火災発報を中継器で受信した際に、発報移報信号を住戸用受信機及び住棟用受信機の各々に送出して警報報知させる共同住宅用火災報知システムを対象とする。
【０００９】
このような共同住宅用火災報知システムにつき本発明にあっては、各住戸の住戸用受信機を各住戸それぞれの電源供給により動作するように接続すると共に各住戸の火災感知器及び中継器を住棟用受信機からの電源供給により動作するように、火災感知器を中継器を介して住棟用受信機に接続したことを特徴とする。このため住戸用受信機への電源供給が停止されていても、火災感知器及び中継器は住棟用受信機からの電源供給で動作しているため、住戸が空きとなって電源を切られていても、その住戸の火災を確実に監視できる。
【００１０】
また各住戸側に、火災感知器が発報した際に予め定めた一定時間発報状態が継続するか否かを判断する蓄積処理を行い、一定時間を越える発報状態の継続を判断した場合に住棟用受信機に発報移報信号を送る蓄積処理部を設けたことを特徴とする。このため、火災感知器が誤って発報しても、蓄積中に火災感知器が復旧するか又は復旧スイッチが操作されると、住棟用受信機に対する発報移報信号の送出は行われず、住棟用受信機からの制御による住戸用受信機での警報報知やドアホン子器からの音声警報が誤って行われることを未然に防止でき、誤報による混乱を防止できる。
【００１１】
更に具体的には、蓄積処理部を各住戸の住戸用受信機に設け、中継器から発報移報信号を受信した際に蓄積処理部の蓄積動作を開始し、一定時間を越える発報状態の継続を判断した場合、中継器を経由して住棟用受信機に発報移報信号を送る。
また蓄積処理部を各住戸の中継器に設けてもよく、この場合は、中継器で火災感知器の発報を受信した際に蓄積処理部の蓄積動作を開始し、一定時間を越える火災状態の継続を判断した場合、住棟用受信機に発報移報信号を送る。
【００１２】
蓄積処理部は、蓄積処理中に住戸用受信機に設けた復旧スイッチの操作による復旧信号を受けた場合には、蓄積処理をリセットする。また蓄積処理部は、住戸用受信機に設けた火災断定スイッチの操作による火災断定信号を受けた場合には、蓄積処理に関係なく直ちに住棟用受信機に発報移報信号を送る。
住戸用受信機に対する電源供給が行われていない場合の蓄積解除処理のため、住戸用受信機に蓄積処理部を設けている場合には、住戸からの電源供給停止状態で中継器に対する蓄積出力信号を有効状態とする蓄積出力部を住戸用受信機に設ける。このため、中継器は、火災感知器の発報により住戸用受信機に発報移報信号の送出を行った際に、住戸用受信機に電源供給が行われずに蓄積出力部からの蓄積出力信号の有効状態を検出した場合は、直ちに住棟用受信機に発報移報信号を送る。
【００１３】
一方、中継器に蓄積処理部を設けている場合には、住戸用受信機に、住戸からの電源供給停止状態で中継器に対する蓄積解除信号を有効とする蓄積解除出力部を設ける。このため中継器の蓄積処理部は、火災感知器の発報により住戸用受信機に発報検出信号の送出を行った際に、住戸用受信機に電源供給が行われずに蓄積解除出力部からの蓄積解除信号の有効状態を検出した場合は、蓄積処理を禁止して直ちに住棟用受信機に発報移報信号を送る。
【００１４】
また中継器に対しスプリンクラー消火設備に設けた流水検知装置の動作でオンする圧力スイッチを接続している場合には、この圧力スイッチのオンによる流水検知信号を受信した際に、住棟用受信機に対し蓄積を行うことなく、直ちに発報移報信号を送る。即ち、スプリンクラー消火設備が動作した場合は、火災に間違いないことから、直ちに発報移報信号を送る。
【００１５】
本発明の共同住宅用火災報知システムは、更に、各住戸に、インターホン親器とドアホン子器を組み合わせたインターホン設備を設けている。この場合、中継器は、火災感知器の発報検出時にドアホン子器に発報移報信号を送り、この発報移報信号を受けたドアホン子器は、住棟用受信機との信号線接続による電源供給を受けている自己の火災表示灯を点灯又は点滅させる。
【００１６】
本発明の蓄積処理部は、火災感知器が自己復旧型か自己保持型かで異なる。火災感知器が、火災状態が解消された場合に発報状態を自分自身で解除する自己復旧型火災感知器の場合、蓄積処理部は、火災感知器の発報検出時に蓄積タイマを起動し、蓄積タイマの動作中に火災感知器の発報停止があった場合にはリセットし、リセットが行われずに発報状態が一定時間継続した場合には蓄積出力を行わせる。
【００１７】
これに対し火災感知器が発報状態を保持する自己保持型火災感知器の場合、蓄積処理部は、火災感知器の発報検出時に蓄積タイマを起動すると共に火災感知器に対する電源供給を一旦遮断して復旧させた後に再度電源を投入し、電源再投入後の予め定めた一定時間以内に２回目の発報がなかった場合にはリセットし、あった場合には蓄積出力を行う。
【００１８】
また住戸用受信機は、中継器からの発報移報信号の受信後、所定時間経過してから音声警報等で警報報知する制御部を設ける。
本発明の共同住宅用火災報知システムの別の形態にあっては、住戸用受信機に設けた蓄積出力部から、住戸の電源供給状態で中継器に有電圧信号を出力し、住戸の電源供給の停止状態及び中継器に対する蓄積出力信号の送出時に有電圧信号を遮断する。このため中継器は、火災感知器の発報受信がない定常監視状態で、有電圧信号が遮断した場合は、住戸用受信機側の停電等による障害と判断することになる。
【００１９】
中継器は、火災感知器の発報を受信した時に、住戸用受信機からの有電圧信号が遮断している場合は、直ちに住棟用受信機に発報移報信号を送り、一方、火災感知器の発報を受信した時に、有電圧信号が供給されている場合は、住戸用受信機に発報移報信号を送出し、その後、有電圧信号の遮断を検出した場合には、住棟用受信機に発報移報信号を送ることになる。
【００２０】
この有電圧信号の具体例としては、住戸用受信機の蓄積出力部は、信号線を介して中継器に設けたフォトカプラの発光素子に有電圧信号を出力して発光駆動し、蓄積出力信号の送出時には有電圧信号の信号線に挿入接続したリレー接点を開放して有電圧信号を遮断し、中継器は前記フォトカプラの受光素子の受光出力がなくなった時に有電圧信号の遮断を検出する。
【００２１】
また蓄積処理部は、住戸用受信機に設けた火災断定スイッチの操作による火災断定信号を受けた際にも中継器に出力している有電圧信号を遮断する。
また蓄積処理部は、火災感知器の発報による中継器からの発報移報信号を受信していない状態で、住戸用受信機に設けた火災断定スイッチの操作を検出した際には、この操作検出信号を一定時間保持し、一定時間内に中継器から発報移報信号を受信した場合は、中継器に出力している有電圧信号を遮断し、一定時間内に中継器から発報移報信号を受信できない場合は、操作検出信号の保持を解除する。
【００２２】
更に蓄積処理部は、住戸用受信機と中継器を接続する他の信号線の断線を検出した際にも、中継器に出力している有電圧信号を遮断する。このような住戸用受信機から中継器への有電圧信号の伝送により、中継器側で住戸用受信機の停電や信号線の断線を確実に検出することができる。
このように本発明は中継器側で住戸用受信機の停電や断線等の障害が検出できることで、次のような中継器と住戸用受信機に蓄積機能を分散させた蓄積処理ができる。
【００２３】
この分散蓄積処理は、中継器に第１蓄積時間Ｔ１を設定した第１蓄積処理部（第１蓄積タイマ）を設け、住戸用受信機に第２蓄積時間Ｔ２を設定した第２蓄積処理部（第２蓄積タイマ）を設ける。中継器の第１蓄積処理部は、火災感知器の発報を受信した際に、蓄積動作を開始して第１蓄積時間Ｔ１に亘り発報状態が継続した時に住戸用受信機に発報移報信号を送出する。
【００２４】
このとき住戸用受信機の第２蓄積処理部は、中継器からの発報移報信号を受信した際に蓄積動作を開始し、第２蓄積時間Ｔ２に亘り発報状態が継続した場合に、中継器を経由して住棟用受信機に発報移報信号を送る。このため火災感知器が誤って発報しても、中継器で第１段階の蓄積が行われるため、住戸用受信機での誤報を未然に防止できる。
【００２５】
また中継器の第１処理部は、火災感知器の発報を受信した際に、有電圧信号が遮断している場合は、直ちに住棟用受信機に発報移報信号を送出する。
分散蓄積処理の別の形態にあっては、中継器の第１蓄積処理部は、火災感知器の発報を受信した際に、住戸用受信機からの有電圧信号が得られている場合（正常時）は、蓄積処理を行わずに直ちに住戸用受信機に発報移報信号を送出し、有電圧信号が遮断している場合は、蓄積動作を開始して第１蓄積時間Ｔ１に亘り発報状態が継続した時に、住棟用受信機に発報移報信号を送出する。
【００２６】
この場合、住戸用受信機の第２蓄積処理部は、最初の形態と同様に、中継器からの発報移報信号を受信した際に蓄積動作を開始し、第２蓄積時間Ｔ２に亘り発報状態が継続した時に有電圧信号を遮断し、中継器を経由して住棟用受信機に発報移報信号を送る。
この形態では、住戸用受信機に停電や断線等の障害があっても、火災感知器の発報受信に対し中継器で蓄積を行った後に、住棟用受信機に発報移報信号を送出するため、火災感知器の誤動作によって住棟用受信機で誤警報が出されてしまうことを確実に防止できる。
【００２７】
ここで中継器の第１蓄積時間Ｔ１は、住戸用受信機の第２蓄積時間Ｔ２に対し十分に短い時間とする。
【００２８】
【発明の実施の形態】
図１は本発明の共同住宅用火災報知システムのシステム構成図である。
図１において、共同住宅の各住戸には、例えば住戸１Ａに代表して示すように、インターホン親器２、住戸用受信機３、ドアホン子器４、中継器５及び火災感知器６が設けられる。インターホン親器２とドアホン子器４はインターホン設備であり、インターホン親器２は住戸用受信機３と隣接して又は同一筐体内に設けられている。
【００２９】
またドアホン子器４は住戸の玄関先に設置されており、呼出釦を押すことでインターホン親器２との間で通話ができる。火災感知器６は中継器５からの電源兼用信号線に接続されており、火災を検出して発報すると、この発報が中継器５で受信され、住戸用受信機３に発報移報信号が送られて、火災の音声警報と警報表示が行われる。
【００３０】
また住戸用受信機３には、この実施形態にあってはスピーカが設けらており、音声合成により火災発生を音声警報することができる。このような住戸１Ａ，１Ｂ側のユニットに対し、管理人室などの中央側には各住戸を集中監視するための住棟用受信機７が設置されている。住棟用受信機７からは、住戸１Ａ，１Ｂ側に対し火報用信号回線９、制御用信号回線１０及び音声警報用信号回線１１が引き出されている。火報用信号回線９に対しては、住戸１Ａ，１Ｂの中継器５が接続される。また制御用信号回線１０には各住戸のドアホン子器４が接続される。更に音声警報用信号回線１１には同じく各住戸のドアホン子器４が接続される。また住棟用受信機７からの火報用信号回線９、制御用信号回線１０及び音声警報用信号回線１１に対しては、総合盤８が接続される。総合盤８には火災発信機、音声警報用のスピーカ及び表示灯が設けられている。
【００３１】
このような共同住宅用火災報知システムにおいて、本発明にあっては、住棟用受信機７の電源部から火報用信号回線９によって住戸１Ａ，１Ｂに設けている中継器５及び、中継器５に接続した火災感知器６に対し、電源供給を行っている。更に、住戸１Ａ，１Ｂに設けているドアホン子器４の火災表示部に対しても、住棟用受信機７側から電源供給を行っている。これに対しインターホン親器２、住戸用受信機３及びドアホン子器４の火災表示部以外の部分に対しては、住戸１Ａ，１Ｂのそれぞれにおいて電源供給が行われている。
【００３２】
更に住戸１Ａ，１Ｂ側の住戸用受信機３または中継器５には、蓄積処理部が設けられている。このため火災感知器６が発報しても直ちに住棟用受信機７に発報移報信号が送られず、予め定めた一定の蓄積時間継続して発報状態が続いたときに初めて、住棟用受信機７に対し発報移報信号が送られることになる。
図２は図１のシステム構成における本発明の第１実施形態であり、蓄積処理部を住戸用受信機３側に設けたことを特徴とする。
【００３３】
図２において、まず中継器５には受信部１２が設けられ、受信部１２から引き出された感知器回線に火災感知器６を接続しており、感知器回線の終端には終端抵抗Ｒを接続している。火災感知器６は、この実施形態にあっては、発報後に火災状態がなくなると復旧する自己復帰型の火災感知器を使用している。また中継器５には制御部１４が設けられる。
【００３４】
制御部１４に対しては、トランジスタＱ１により動作する受信リレーＬ１が接続され、またトランジスタＱ２により動作する移報リレーＬ２が接続されている。受信リレーＬ１はリレー接点ｌ１を有し、このリレー接点ｌ１は住戸用受信機３側に接続される。
移報リレーＬ２はリレー接点ｌ２を有し、リレー接点ｌ２は住棟用受信機７側に接続される。即ち、リレー接点Ｌ１は、その接点を閉じることにより住戸用受信機３に発報移報信号を出力する。またリレー接点ｌ２は、接点を閉じることにより住棟用受信機７に対し発報移報信号を出力する。
【００３５】
制御部１４は、受信部１２で火災感知器６の発報を受信したときの発報検出信号を受けると、トランジスタＱ１のオンにより受信リレーＬ１を作動してリレー接点ｌ１を閉じることにより、住戸用受信機３に対し発報移報信号を送出する。同時に制御部１４はドアホン子器４側に発報移報信号Ｅ３を送出して火災表示を行わせる。
【００３６】
また制御部１４は火災感知器６の発報を検出した後に、住戸用受信機３における蓄積処理に基づいた蓄積出力信号Ｅ１を受けたときに、トランジスタＱ２のオンにより移報リレーＬ２を動作し、リレー接点ｌ２を閉じることで住棟用受信機７に対し蓄積処理に基づいた発報移報信号を送出する。また住戸用受信機３側から火災断定信号Ｅ４を受けると、強制的に移報リレーＬ２を作動させ直ちに住棟用受信機７に対し発報移報信号を送出する。
【００３７】
住戸用受信機３には制御部１５が設けられ、制御部１５には蓄積処理部として機能する蓄積タイマ１６が内蔵されている。制御部１５に対しては、火災灯１７、復旧スイッチ１８、火災断定スイッチ１９が接続される。更に制御用のリレーとしてトランジスタＱ３，Ｑ４，Ｑ５によりオンオフされるスピーカ切替リレーＭ、蓄積出力リレーＮ、及び火災断定リレーＡを接続している。
【００３８】
蓄積出力リレーＮは、切替リレー接点ｎを有し、トランジスタＱ４と共に蓄積出力回路を構成する。蓄積出力リレーＮは、住戸用受信機３が住戸のブレーカ等からＡＣ１００Ｖの供給を受けた動作状態におけるトランジスタＱ４のオンにより作動状態に置かれている。蓄積出力リレーＮの切替リレー接点ｎは、中継器５に設けた受信リレーＬ１のリレー接点ｌ１を切替接片に接続し、切替端子ａ側を制御部１５に接続し、切替端子ｂ側を中継器５の制御部１４に対する蓄積出力信号Ｅ１の信号ラインとして接続している。
【００３９】
蓄積出力リレーＮは、住戸用受信機３に対するＡＣ１００Ｖの電源が切られている場合には、蓄積タイマ１６のタイムアップによる蓄積出力時と同様、非作動状態となって切替リレー接点ｎをｂ側に切り替え、蓄積出力信号Ｅ１の有効状態を作り出している。このため住戸用受信機３の電源が切られている場合、中継器５の制御部１４は、受信リレーＬ１のリレー接点ｌ１を閉じると、直ちに蓄積出力信号Ｅ１を受けたと同じ動作状態となる。
【００４０】
蓄積出力リレーＮは、電源が正常に供給された定常監視状態において、トランジスタＱ４のオンにより作動状態にあることから、切替リレー接点ｎを図示のようにａ側に切り替え、中継器５のリレー接点ｌ１を制御部１５に接続している。このため中継器５において火災感知器６の発報検出による受信リレーＬ１の動作が行われると、リレー接点ｌ１が閉じることで切替リレー接点ａを介して住戸用受信機３の制御部１５に発報移報信号が送られる。
【００４１】
具体的には、リレー接点ｌ１が閉じることで制御部１５のポートは、切替リレー接点ｎ，リレー接点ｌを介してＬレベルに引き込まれ、これによって制御部１５は中継器５からの発報移報信号を受信する。制御部１５は中継器５からの発報移報信号を受信すると、蓄積タイマ１６を起動する。蓄積タイマ１６には、例えば２〜５分の範囲について予め一定の蓄積時間が設定されている。
【００４２】
一度起動した蓄積タイマ１６は、蓄積中に中継器５からの発報移報信号が断たれると、即ち受信リレーＬ１が復旧してリレー接点ｌ１が開くと、蓄積動作を停止してタイマリセットとなる。蓄積中の蓄積タイマ１６のリセットは、制御部１５に接続している復旧スイッチ１８をオン操作した場合、火災断定スイッチ１９をオン操作した場合にも同様に行われる。
【００４３】
制御部１５は、蓄積タイマ１６の起動後に、予め設定した蓄積時間を超えて発報移報信号の入力が続くと、蓄積時間に達したときに蓄積タイマ１６がタイムアップし、トランジスタＱ４をオフすることで蓄積出力リレーＮを復旧させる。この蓄積出力リレーＮの復旧により、切替リレー接点ｎはｂ側に切り替わる。このとき中継器５のリレー接点ｌ１は閉じていることから、制御部１４の蓄積出力信号Ｅ１の入力ポートは、切替リレー接点ｎ、リレー接点ｌ１を通って接地されることでＬレベルに引き込まれ、中継器５の制御部１４は蓄積出力信号Ｅ１の出力を認識する。
【００４４】
火災断定リレーＡは、蓄積タイマ１６の蓄積に関係なく住戸用受信機３で火災断定スイッチ１９がオン操作された場合にトランジスタＱ５のオンにより作動され、リレー接点ａ１を閉じて中継器５の制御部１４に対する火災断定信号Ｅ４の信号ラインをＬレベルに引き込むことで、制御部１４に火災断定を認識させる。制御部１４は、火災断定信号Ｅ４を認識すると、直ちに移報リレーＬ２を作動して住棟用受信機７に対し発報移報信号を送ることになる。
【００４５】
また住戸用受信機３で復旧スイッチ１８をオン操作した場合には、制御部１５は、蓄積タイマ１６のリセット、蓄積出力リレーＮの作動を含む定常監視状態への復旧処理を行わせる。
更に住戸用受信機３には、音声警報を行うために音声合成部２０、アンプ２１、トランス２２及びスピーカ２３が設けられている。スピーカ２３は、スピーカ切替リレーＭの切替リレー接点ｍ１，ｍ２により住戸側と住棟用受信機７側との各音声信号回線に対し選択的に切替接続される。即ち、定常監視状態にあっては、トランジスタＱ３のオフによりスピーカ切替リレーＭは非作動状態にあり、その切替リレー接点ｍ１，ｍ２は図示のように住棟用受信機７からの音声信号回線となるａ側に切り替わっている。
【００４６】
制御部１５で中継器５から発報移報信号を受信すると、トランジスタＱ３のオンによりスピーカ切替リレーＭが作動し、切替リレー接点ｍ１，ｍ２がｂ側に切り替わり、トランス２２からの音声信号回線にスピーカ２３を接続する。この切替接続により、音声合成部２０の起動で出力された音声信号がアンプ２１及びトランス２２を介してスピーカ２３に供給され、音声メッセージ警報を出すことができる。
【００４７】
スピーカ切替リレーＭは、更に切替リレー接点ｍ３，ｍ４を有する。この切替リレー接点ｍ３，ｍ４は、発報移報信号の受信時にドアホン子器４をインターホン親器２から切り離し、音声合成部２０からの音声信号をドアホン子器４に設けているスピーカ３０に送って、音声メッセージ警報をドアホン子器４から出せるようにしている。更に住戸用受信機３には電源部２４が設けられ、ＡＣ１００Ｖの供給を受けて規定の直流電源電圧Ｖｃを各回路部に供給している。
【００４８】
ドアホン子器４は、表示回路２５とドアホン回路２７を有する。表示回路２５は火災灯２６を点灯して警報表示するもので、住棟用受信機７からの火報用信号回線９の電源線である２４Ｖ電源線とコモン線Ｃを接続している。更に中継器５の制御部１４からの発報移報信号Ｅ３の出力ラインを接続している。このため、中継器５の制御部１４での発報検出に基づく発報移報信号Ｅ３を受けると表示回路２５で火災灯２６を点灯又は点滅して警報表示する。
【００４９】
ドアホン回路２７には、呼出スイッチ２８、マイク２９及びスピーカ３０が接続される。スピーカ３０は、ドアホン子器４に設けている音声入力制御リレーＫの切替リレー接点ｋ３，ｋ４によりドアホン回路２７側と住棟用受信機７側とに切り替えられる。
住棟用受信機７からの音声警報用信号回線１１の接続ラインには、音声入力制御リレーＫのリレー接点ｋ１，ｋ２が挿入接続されている。リレー接点ｋ１，ｋ２の二次側にはトランス３１が接続され、トランス３１の一次側より分岐した音声警報用信号回線を住戸用受信機３のスピーカ２３側に接続している。トランス３１の二次側は切替リレー接点ｋ３，ｋ４のｂ側に接続される。
【００５０】
音声入力制御リレーＫは、住棟用受信機７で中継器５から発報移報信号を受けたときの制御で選択的にオンされる。音声入力制御リレーＫがオンするとリレー接点ｋ１，ｋ２が閉じ、住棟用受信機７からの音声信号を入力することができる。同時に切替リレー接点ｋ３，ｋ４は図示のａ側からｂ側に切り替わり、ドアホン子器４のスピーカ３０をドアホン回路２７から切り離してトランス３１の二次側に接続し、住棟用受信機７からの音声信号による音声メッセージ警報の出力可能状態となる。
【００５１】
次に住棟用受信機７を説明する。住棟用受信機７には受信部３２が設けられ、住戸側の中継器５からの蓄積処理に基づいた発報移報信号、即ち移報リレーＬ２の作動によるリレー接点ｌ２のオンによる発報移報信号を受信して、制御部３３に受信出力を生ずる。ここで住棟用受信機７の受信部３２は、図示の住戸の中継器５に対応した１つを示しているが、例えば階別に複数の受信部３２が設けられ、各受信部３２から引き出された回線にその階の住戸の中継器５が複数接続される。このため制御部３３は受信部３２の受信出力により、どの階の住戸から発報移報信号が送られてきたかを判別することができる。
【００５２】
制御部３３には、住棟用受信機７で監視している監視区域の数、例えば階別監視の場合は階数ｎに対応して、制御リレーＴ１，Ｔ２，・・・，ＴｎがトランジスタＱ11，Ｑ12，・・・，Ｑ1nによりオン、オフできるように設けている。この制御リレーＴ１〜Ｔｎに対応して必要な住戸に対し住棟用受信機７から音声警報を行わせるため、マトリクス回路３６を設けている。
【００５３】
マトリクス回路３６は、階数ｎに対応して階別の制御線Ｂ１，Ｂ２，・・・，Ｂｎを備えた制御用信号回線１０と接続され、制御線Ｂ１〜ＢｎごとにダイオードＤ１〜Ｄｎと制御リレーＴ１〜Ｔｎのリレー接点ｔ１〜ｔn の直列回路を備えている。このため住戸のいずれかで火災感知器６が発報して住棟用受信機７でその発報移報信号が受信されると、制御部３３で対応する制御リレー、例えば１階で発報があったと判別した場合には、制御リレーＴ１をオンし、マトリクス回路３６のリレー接点ｔ１を閉じ、ダイオードＤ１を介して制御線Ｂ１により制御電圧を１階の全住戸のドアホン子器４の音声入力制御リレーＫに供給して作動させる。
【００５４】
更にマトリクス回路３６にあっては、例えば火災発生階の直上階に対応した制御線Ｂ２に対し、リレー接点ｔ１の出力側をダイオードＤ12を介して接続している。これによってリレー接点ｔ１のオンにより発報した１階に加え、その直上階となる２階の制御線Ｂ２に対しても制御電圧を出力して、２階の全住戸に設けているドアホン子器４の音声入力制御リレーＫを作動することができる。
【００５５】
更に住棟用受信機７には、音声合成部３４及びパワーアンプ３５が設けられる。音声合成部３４は、制御部３３で住戸側から発報移報信号の受信出力が得られたときに起動され、例えば１階で火災が発生した旨の音声メッセージを合成し、パワーアンプ３５により音声信号を増幅して音声警報用信号回線１１を介して住戸側に音声信号を送る。このとき住戸側のマトリスク回路３６を介して制御線により制御電圧を受けたドアホン子器４にあっては、音声入力制御リレーＫの作動でリレー接点ｋ１，ｋ２が閉じており、また切替リレー接点ｋ３，ｋ４がｂ側に切り替わっているため、住棟用受信機７からの音声信号はドアホン子器のスピーカ３０と住戸用受信機３のスピーカ２３のそれぞれに供給され、音声メッセージ警報を出すことができる。
【００５６】
更に住棟用受信機７には電源部３７が設けられ、ＡＣ１００Ｖから規定の直流電源電圧Ｖｃを作り出している。この電源電圧Ｖｃに基づき、住棟用受信機７から引き出された火報用信号回線９の＋２４Ｖ電源線とコモン線Ｃによって住戸側の中継器５に対する電源供給が行われている。即ち、中継器５の受信部１２を介して火災感知器６が住棟用受信機７からの電源ラインに接続され、住棟用受信機７からの電源供給で動作する。
【００５７】
もちろん、中継器５に設けている受信部１２、制御部１４やトランジスタＱ１，Ｑ２、更にはリレーＬ１，Ｌ２についても同様に、住棟用受信機７からの電源供給で動作する。更にドアホン子器４に設けている表示回路２５、火災灯２６及びリレーＫについても、住棟用受信機７からの電源供給で動作する。
廊下等の共用部に設けられる総合盤８にはリレーＶが設けられており、マトリクス回路３６におけるリレー接点ｔ１のオンにより電源供給を受けて動作し、トランス３９を介して接続しているスピーカ３８に対しリレー接点ｖ１，ｖ２をオンすることで、住棟用受信機７の音声合成部３４より出力された音声信号を供給して、総合盤８からも音声メッセージ警報ができるようにしている。
【００５８】
次に図２の実施形態の動作を説明する。例えば１階の住戸に設けてある火災感知器６が発報すると、中継器５の受信部１２で発報が検出され、発報検出信号が制御部１４に出力される。発報検出信号を受けた制御部１４は、受信リレーＬ１を駆動してリレー接点ｌ１を閉じ、発報移報信号を住戸用受信機３の制御部１５に送る。このとき制御部１４はドアホン子器４の表示回路２５に対しても発報移報信号Ｅ３を出力し、ドアホン子器４に設けている火災灯２６を点灯又は点滅させる。
【００５９】
住戸用受信機３の制御部１５は、中継器５からの発報移報信号を受けると火災灯１７を点灯し、スピーカ切替リレーＭを作動して切替リレー接点ｍ１，ｍ２をｂ側としてスピーカ２３を住戸用受信機３側に切り替え、また切替リレー接点ｍ３，ｍ４をｂ側に切り替えて、ドアホン子器４のスピーカ３０を住戸用受信機３側に切り替える。
【００６０】
そして音声合成部２０を起動し、音声メッセージとして例えば「感知器が発報しました。確認してください。誤報の場合は復旧スイッチを押してください。」を住戸用受信機３のスピーカ２３とドアホン子器４のスピーカ３０から出力させる。更に制御部１５は、中継器５からの発報移報信号を受けた際に蓄積タイマ１６をスタートさせる。
【００６１】
蓄積タイマ１６の動作中、即ちカウント中に火災感知器６が復旧した場合、即ち受信リレーＬ１の駆動が停止されてリレー接点ｌ１が開いた場合、または復旧スイッチ１８が操作された場合には、復旧処理を行う。この復旧処理は、住戸用受信機３の火災灯１７を消灯し、スピーカ切替リレーＭを非作動として復旧させ、更に音声合成部２０による動作を停止させ、更にまた蓄積タイマ１６のタイマリセットを行う。
【００６２】
蓄積タイマ１６がタイムアップすると、制御部１５は定常監視状態で作動状態にある蓄積出力リレーＮの作動を停止し、その切替リレー接点ｎをｂ側に切り替える。切替リレー接点ｎがｂ側に切り替わると、中継器５の制御部１４に対する蓄積出力信号Ｅ１がＬレベルに引き込まれて有効となり、この蓄積出力信号Ｅ１が供給されるポートのＨレベルからＬレベルへの切替わりを制御部１４が検出すると、移報リレーＬ２を作動してリレー接点ｌ２を閉じる。リレー接点ｌ２が閉じると、住棟用受信機７から引き出された火報用信号回線９のＬ，Ｃ間が短絡状態となり、発報移報信号が住棟用受信機７に送られる。
【００６３】
住棟用受信機７の受信部３２は、中継器５からの発報移報信号を受けて制御部３３に出力する。制御部３３は発報移報信号を受けた受信部３２の回線から出火住戸の属する出火階を判別し、必要箇所、例えば出火階及び直上階に対して警報を行うために、例えば出火階が１階であった場合には１階と２階の住戸に対し警報を行うため、制御リレーＴ１を作動する。
【００６４】
このためマトリクス回路３６のリレー接点ｔ１が閉じ、１階の制御線Ｂ１と２階の制御線Ｂ２に制御電圧が供給されることで、ドアホン子器４に設けている音声入力制御リレーＫが作動し、リレー接点ｋ１，ｋ２が閉じると同時に切替リレー接点ｋ３，ｋ４がｂ側に切り替わり、ドアホン子器４のスピーカ３０が住棟用受信機７からの音声警報用信号回線１１に接続される。
【００６５】
ここで火災感知器６が発報していない住戸にあっては、住戸用受信機３のスピーカ切替リレーＭは非作動であることから、切替リレー接点ｍ１，ｍ２は図示のように住棟用受信機７側に切り替わっている。また火災感知器６が発報した住戸にあっては、スピーカ切替リレーＭの作動で切替リレー接点ｍ１，ｍ２はスピーカ２３を住戸用受信機３側に切り替えているが、マトリクス回路３６により音声入力制御リレーＫが作動されると、ドアホン子器４のスピーカ３０は住棟用受信機７側に切り替わる。
【００６６】
このため住棟用受信機７の制御部３３が音声合成部３４を起動し、出火階例えば１階で火災が発生した旨の音声メッセージを合成し、パワーアンプ３５を介して出力すると、１，２階の出火住戸を除く各住戸の住戸用受信機３のスピーカ２３と火災発生住戸を含む１，２階の全住戸のドアホン子器４のスピーカ３０のそれぞれに対し住棟用受信機７からの音声信号が供給され、音声メッセージ「ウーウー、火事です。火事です。１階で火災が発生しました。安全を確認して避難してください。」が警報報知される。また１，２階の共用部に設けられる総合盤８のスピーカ３８からも同様に音声メッセージ警報が出されるようになる。
【００６７】
次に住戸用受信機３にＡＣ１００Ｖの電源が供給されていない場合の動作を説明する。住戸用受信機３にＡＣ１００Ｖの電源が供給されていない場合には、住戸用受信機３の全回路は停止状態となり、蓄積出力リレーＮの切替リレー接点ｎは非作動状態でｂ側に切り替わり、火災感知器６の発報時の中継器５の受信リレーＬ１によるリレー接点ｌ１のオンで制御部１４に対する蓄積出力信号Ｅ１をＬレベルに引き込み可能としている。
【００６８】
このため火災感知器６が発報すると中継器５のリレー接点ｌ１が閉じ、このとき切替リレー接点ｎはｂ側に切り替わっていることから、制御部１４に対する蓄積出力信号Ｅ１は蓄積出力を示すＬレベルとなり、制御部１４は住戸用受信機３における蓄積終了後の蓄積出力状態と判断し、移報リレーＬ２を作動してリレー接点ｌ２を閉じることで、住棟用受信機７に対し発報移報信号を送出する。
【００６９】
即ち、火災感知器６が発報すると中継器５は直ちに発報移報信号を住棟用受信機７に送ることができ、必要箇所、例えば火災発生階及び直上階に対する音声警報を行うことができる。このため住戸が空となって住戸用受信機３に対するＡＣ１００Ｖの電源が断たれていても、その住戸での火災を確実に監視することができる。
【００７０】
また火災感知器６が発報した住戸のドアホン子器４の火災灯２０は、住棟用受信機７からの電源供給を受けているため、発報移報信号Ｅ３を受けると点灯又は点滅する。従って、発報があった住戸を外部から確認することができる。
図３は本発明の共同住宅用火災報知システムの第２実施形態であり、この第２実施形態にあっては、住戸の中継器５に蓄積処理部を設けたことを特徴とする。
【００７１】
図３において、中継器５の制御部１４には蓄積処理部として機能する蓄積タイマ４０が設けられる。蓄積タイマ４０は、火災感知器６の発報による受信部１２からの発報検出信号を受けた時にスタートし、予め定めた一定時間継続して発報検出信号が維持されるとタイムアップし、移報リレーＬ２を作動し、リレー接点ｌ２を閉じて、住棟用受信機７に対し発報移報信号を送るようにしている。
【００７２】
中継器５の制御部１４に蓄積タイマ４０を設けたことに伴い、住戸用受信機３にはトランジスタＱ６により駆動される復旧リレーＢが新たに設けられる。復旧リレーＢはリレー接点ｂ１を有し、中継器５の制御部１４に対し復旧信号Ｅ５を出力する。復旧リレーＢは住戸用受信機３の制御部１５に設けている復旧スイッチ１８をオンした時に作動してリレー接点ｂ１を閉じ、制御部１４からの復旧信号ラインをＬレベルに引き込むことで、復旧信号Ｅ５の出力状態を作り出す。
【００７３】
復旧信号Ｅ５を受けた制御部１４は、受信リレーＬ１の作動停止、蓄積タイマ４０のクリア、ドアホン子器４の火災灯２６の消灯制御を行う。
更に、住戸用受信機３の火災断定スイッチ１９を操作した場合には、火災断定リレーＡがオンしてリレー接点ａ１が閉じ、蓄積タイマ４０の蓄積動作に関わらず移報リレーＬ２を作動し、リレー接点ｌ２をオンして住棟用受信機７に発報移報信号を送ることになる。このとき蓄積中にあっては、蓄積タイマ４０のリセットを行うようにしてもよい。
【００７４】
更に住戸用受信機３にＡＣ１００Ｖの電源が供給されていない場合には、リレーＮの非作動により切替リレー接点ｎがｂ側に閉じ、中継器５の制御部１４の蓄積タイマ４０に対する蓄積解除信号Ｅ６の出力を可能とする。この状態で火災感知器６が発報してリレー接点ｌ１が閉じると、制御部１４に対する蓄積解除信号Ｅ６の信号ラインはＬレベルに引き込まれ、これにより蓄積タイマ４０の蓄積機能が解除され、直ちに移報リレーＬ２の作動でリレー接点ｌ２を閉じ、住棟用受信機７に対し発報移報信号を送ることができる。
【００７５】
即ち、住戸用受信機３のトランジタスＱ４、リレーＮ、切替リレー接点ｎによって、ＡＣ１００Ｖが断たれたときに中継器５に対する蓄積解除信号Ｅ６の信号状態を有効とする蓄積解除出力回路が構成される。それ以外の構成及び動作は、図２の第１実施形態と同じである。
図４は本発明による共同住宅火災報知システムの第３実施形態であり、この実施形態にあっては図２，図３の中継器５からの感知器回線に設けている火災感知器６の代わりに、スプリンクラー消火設備の流水検知装置に設けている圧力スイッチ４６を接続したことを特徴とする。
【００７６】
図４において、中継器５の受信部１２からの感知器回線には、スプリンクラー消火設備の給水管４１に設けている流水検知装置４２に対し設けられた流水検出を検知する圧力スイッチ４５が接続される。流水検知装置４２の二次側の給水管には閉鎖型スプリンクラーヘッド４４が接続され、定常監視状態で規定の管内圧力となる消火用水が充満している。
【００７７】
火災により閉鎖型スプリンクラーヘッド４４が作動して消火用水が噴出すると、流水検知装置４２の二次側の圧力低下に伴って弁開放が行われ、この弁開放に伴う流水を圧力スイッチ４５で検知する。圧力スイッチ４５には、流水検知装置４２の作動でａ側からｂ側に切り替わるリミットスイッチ４６が設けられている。中継器５からの感知器回線はリミットスイッチ４６のコモン側と切替え端子ｂ側に接続され、切替端子ａ，ｂ間に終端抵抗４７を接続している。
【００７８】
リミットスイッチ４６がａ側に閉じている流水検知装置４２の非作動状態にあっては、終端抵抗４７で決まる微弱な電流が受信部１２に流れている。閉鎖型スプリンクラーヘッド４４の作動で流水検知装置４２が動作して圧力スイッチ４５のリミットスイッチ４６がｂ側に切り替わると、終端抵抗４７をバイパスすることで短絡電流が受信部１２に流れ、流水検知装置４２の作動による受信出力が制御部１４に与えられる。これにより制御部１４は、受信リレーＬ１を作動してリレー接点ｌ１を閉じることになる。
【００７９】
このようにスプリンクラー消火設備の流水検知装置４２における圧力スイッチ４５を中継器５からの感知器回線に接続した場合には、住戸用受信機３に設けている蓄積タイマ１６による蓄積機能は不要となる。これはスプリンクラーヘッドが作動している状態というのは、火災がかなり拡大している状態であることから、直ちに住棟用受信機７に対し発報移報信号を送り、必要住戸に対し警報報知をしなければならないためである。
【００８０】
そこで、中継器５のリレー接点ｌ１の住戸用受信機３の切替リレー接点ｎに対する信号線端子と、住戸用受信機３からの蓄積出力信号Ｅ１の信号線端子を、ジャンパ線４８によってバイパス接続し、蓄積出力信号Ｅ１の有効状態を固定的に作り出す。
このジャンパ線４８によるバイパス接続により、リレー接点ｌ１が閉じると、住戸用受信機３側の動作と無関係に制御部１４に対する蓄積出力信号Ｅ１がＬレベルに引き込まれ、したがって制御部１４は移報リレーＬ２を作動してリレー接点ｌ２を閉じることで、直ちに住棟用受信機７に対し発報移報信号を送ることができる。これ以外の構成及び動作は、図２の実施形態と同じである。
【００８１】
また図３の実施形態にも、中継器５のリレー接点ｌ１の信号線端子と蓄積解除信号Ｅ６の信号線端子をジャンパ線４８によってバイパス接続することでも、同様に適用できる。
図５は本発明による共同住宅用火災報知システムの第４実施形態であり、中継器側で住戸用受信機の停電や断線等を検出することができ、更に蓄積機能を住戸用受信機と中継器に分散して設けるようにしたことを特徴とする。
【００８２】
図５の実施形態において、中継器５で住戸用受信機３での未入居、停電等による電源供給停止状態を検出できるようにするため、住戸用受信機３から中継器５に対し住戸からの電源供給状態で常時、有電圧信号を出力するように構成している。即ち、住戸用受信機３の制御部１５から中継器５の制御部１４に対し信号回線５０を引き出している。
【００８３】
信号回線５０の中継器５側にはフォトカプラ５２を接続し、信号回線５０の一方を電源電圧にプルアップし、通常時、有電圧信号Ｖｃを住戸用受信機３から中継器５に供給している。フォトカプラ５２は発光素子５４とフォトトランジスタ５６を備え、住戸用受信機３から正常に有電圧信号Ｖｃが供給されていれば発光素子５４が発光駆動され、フォトトランジスタ５６から制御部１４に対し受光入力が得られる。
【００８４】
有電圧信号Ｖｃを送る信号回線５０の一方のラインには、住戸用受信機３に設けた蓄積出力リレーＮのリレー接点ｎと、火災断定リレーＡのリレー接点ａが直列的に挿入接続されている。リレー接点ｎ，ａは共に常閉接点であり、蓄積出力または火災断定スイッチ１９のオン操作による火災断定出力が行われないときは図示のように閉じている。
【００８５】
制御部１５の蓄積出力による蓄積出力リレーＮの作動でリレー接点ｎが開くと、中継器５に対する有電圧信号Ｖｃが遮断される。同様にして、火災断定スイッチ１９の操作による火災断定リレーＡの作動でリレー接点ａが開いた場合にも、中継器５に対する有電圧信号Ｖｃが遮断される。更に中継器５に対する有電圧信号Ｖｃは、住戸用受信機３に対する住戸の共用電源ＡＣ１００Ｖが断たれる停電時等の電源供給停止状態でも遮断される。
【００８６】
このため、火災感知器６の発報受信がない定常監視状態で、停電によって住戸用受信機３からの有電圧信号Ｖｃが遮断してフォトカプラ５２からの入力が断たれると、中継器５の制御部１４はフォトカプラ５２からの入力が断たれることで住戸用受信機３側の停電を認識することができる。
次に住戸用受信機３から中継器５に有電圧信号を通常時、送出させている第４実施形態の動作を説明する。通常時、信号回線５０の蓄積出力用の常閉リレー接点ｎ及び火災断定用の常閉リレー接点ａは閉じており、住戸用受信機３からは中継器５へ有電圧信号Ｖｃが出力されている。中継器５の制御部１４では、この有電圧信号Ｖｃをフォトカプラ５２を介して入力し、監視している。
【００８７】
火災感知器６が発報すると、中継器５の制御部１４は、受信部１２からの発報受信に基づいてリレーＬ１を作動し、リレー接点ｌ１を閉じて電源電圧＋Ｖｃにプルアップされた信号線５８を接地接続してＬレベルに引き込み、これによって発報移報信号を住戸用受信機３に出力する。
住戸用受信機３の制御部１５は、中継器５から発報移報信号を受けると、蓄積タイマ１６をスタートさせ、タイムアップすると蓄積出力リレーＮを作動させる。蓄積出力リレーＮを作動させるとリレー接点ｎが開くので、中継器５に対する有電圧信号Ｖｃが遮断される。この有電圧信号Ｖｃの遮断を、中継器５の制御部１４はフォトカプラ５２からの入力がなくなることで認識し、且つ、火災感知器６の発報受信状態であることで蓄積終了と判断し、リレーＬ２を作動してリレー接点ｌ２を閉じ、住棟用受信機７へ発報移報信号を送信する。
【００８８】
また住戸用受信機３の蓄積タイマ１６の蓄積中に火災断定スイッチ１９が操作された場合には、制御部１５は蓄積タイマ１６の蓄積動作に関係なく火災断定リレーＡを作動させる。火災断定リレーＡの作動によりリレー接点ａが開くことで、中継器５に対する有電圧信号Ｖｃが遮断して停止する。この有電圧信号Ｖｃの遮断を、中継器の制御部１５は、フォトカプラ５２からの入力がなくなることで認識し、且つ火災感知器６の発報受信状態であることで、蓄積終了と判断し、リレーＬ２を作動してリレー接点ｌ２を閉じ、住棟用受信機７への発報移報信号を送信する。
【００８９】
更に住戸用受信機３に対する住戸からのＡＣ１００Ｖの電源供給が断たれている場合には、有電圧信号Ｖｃは遮断状態に置かれて出力されないことから、中継器５の制御部１４はフォトカプラ５２からの入力がなくなることで、住戸用受信機３に対するＡＣ１００Ｖの電源供給が断たれていることを判別できる。この状態で制御部１４が火災感知器６の発報を検出した場合は直ちにリレーＬ２を作動し、リレー接点ｌ２を閉じて発報移報信号を住棟用受信機７に送信する。
【００９０】
図５の実施形態にあっては、火災断定リレーＡと蓄積出力リレーＮを個別に設けて、それぞれのリレー接点ａ，ｎを、有電圧信号を送る信号回線５０に直列接続で挿入しているが、火災断定リレーＡと蓄積出力リレーＮを１つのリレーで共用化し、信号回線５０に１つのリレー接点を設けるだけでもよい。
この場合には、制御部１５におけるソフト処理により蓄積タイマ１６のタイムアップ時または火災断定スイッチ１９の操作時に、共通化したリレーを作動し、そのリレー接点を開いて有電圧信号の遮断による出力停止を行えばよい。
【００９１】
更に住戸用受信機３の制御部１５にあっては、有電圧信号Ｖｃを出力している信号回線５０を電圧または電流により常時あるいは定期的に監視することで、信号回線５０の断線をチェックすることができる。また制御部１５に対し中継器５から発報移報信号を送る信号回線５８についても、終端抵抗Ｒを中継器５側の端子に接続し、監視電流を流して電圧または電流による常時あるいは定期的に監視することで、同様に信号線５８の断線を監視するようにしてもよい。
【００９２】
信号回線５８の断線監視において、制御部１５が断線を検出した場合には、中継器５に対する信号回線５０の有電圧信号Ｖｃを遮断して、中継器５に断線による障害を知らせることができる。
このため中継器５は、火災感知器６が発報していない定常監視状態でフォトカプラ５２からの入力がなくなった場合には、住戸用受信機３におけるＡＣ１００Ｖの停電あるいは信号回線５０，５８の断線による障害の発生と判断し、この障害状態で火災感知器６が発報した場合には、直ちにリレーＬ２を作動してリレー接点ｌ２を閉じることで、住棟用受信機７に発報移報信号を送信する。
【００９３】
また図５の実施形態にあっては、住戸用受信機３の火災断定スイッチ１９を操作した場合に、既に中継器５で火災感知器６の発報が受信されている状態でなければ、住棟用受信機７には発報移報信号は送信されない。しかし、住民が火災を火災感知器６の発報よりも早く発見して火災断定スイッチ１９を操作する場合が考えられるので、火災断定スイッチ１９の操作を検出して一定時間保持し、この一定時間内に火災感知器６の発報があった場合にも、直ちに住棟用受信機７に発報移報信号を送信するようにしても良い。
【００９４】
この場合には、住戸用受信機３の制御部１５は、中継器５から火災感知器６の発報受信による発報移報信号を受信していない状態で、火災断定スイッチ１９の操作を検出すると、一定時間（例えば１分間）、この操作検出信号を保持する。この操作検出信号を保持している一定時間内に、中継器５から火災感知器６の発報受信による発報移報信号を受けると、蓄積動作に関係なく、火災断定リレーＡを作動し、リレー接点ａを開くことで、中継器５に対する有電圧信号Ｖｃを遮断する。
【００９５】
中継器５の制御部１４は、フォトカプラ５２からの入力がなくなることを検出すると共に、火災感知器６の発報受信状態であることで蓄積終了と判断し、住棟用受信機７へ発報移報信号を送信する。また、住戸用受信機３の制御部１５は、一定時間内に中継器５からの発報移報信号を受けない場合は、操作検出信号の保持を解除して通常監視状態とする。
【００９６】
また、火災断定スイッチ１９の操作による一定時間の保持を中継器５で行ってもよい。この場合、住戸用受信機３の制御部１５は、火災断定スイッチ１９の操作を検出すると、検出している短い時間、火災断定リレーＡを作動し、リレー接点ａを開くことで、中継器５に対する有電圧信号Ｖｃを遮断する。
中継器５の制御部１４は、フォトカプラ５２からの入力が短い時間なくなることを検出し、一定時間（例えば１分間）、この操作検出信号を保持し、この一定時間内に火災感知器６の発報を検出すると、住棟用受信機７へ発報移報信号を送信する。この場合も、一定時間内に火災感知器６の発報を検出できない場合は、操作検出信号の保持を解除して通常監視状態とする。
【００９７】
次に図５の実施形態において、中継器５側と住戸用受信機３側のそれぞれに蓄積処理機能を設けて蓄積処理を分散させた場合の実施形態を説明する。即ち、中継器５の制御部１４には第１蓄積時間Ｔ１を設定した第１蓄積タイマ６０が新たに設けられており、これに対し住戸用受信機３の制御部１５に既に設けられている蓄積タイマ１６は、第２蓄積時間Ｔ２を設定した第２蓄積タイマとしての機能をもつ。
【００９８】
中継器５の制御部１４に設けた第１蓄積タイマ６０の第１蓄積時間Ｔ１は例えばＴ１＝６０秒とし、住戸用受信機３の制御部１５に設けた第２蓄積タイマ１６の第２蓄積時間は例えばＴ２＝１〜４分とする。即ち第１蓄積タイマ６０の蓄積時間Ｔ１は、第２蓄積タイマ１６の蓄積時間Ｔ２に対し十分短く設定される。
図６のフローチャートは、制御部１４に第１蓄積タイマ６０を設けた中継器５の制御処理のフローチャートである。ステップＳ１で、火災感知器６の発報による発報受信を監視しており、発報受信を判別するとステップＳ２に進み、住戸用受信機３からの有電圧信号の有無による住戸用受信機３の異常、即ち住戸用受信機３の停電または断線等の障害をチェックする。
【００９９】
ここでフォトカプラ５２を介して住戸用受信機３より正常に有電圧信号Ｖｃが得られている場合には、ステップＳ３に進み、第１蓄積タイマ６０を起動する。第１蓄積タイマの蓄積時間Ｔ１は例えばＴ１＝６０秒であり、ステップＳ４で蓄積時間Ｔ１の経過をチェックし、タイムアップするとステップＳ５に進み、住戸用受信機３に対しリレーＬ１の作動によるリレー接点ｌ１の閉成により発報移報信号を送出する。
【０１００】
このため住戸用受信機３の第２蓄積タイマ１６は、火災感知器６の発報受信から蓄積時間Ｔ１後に発報移報信号を受けて蓄積動作を開始する。第２蓄積タイマ１６が蓄積時間Ｔ２でタイムアップすると、蓄積出力リレーＮを作動してリレー接点ｎを開くことによって有電圧信号Ｖｃを遮断する。
中継器５の制御部１４は、有電圧信号Ｖｃの遮断によりフォトカプラ５２の入力がなくなることで、ステップＳ６で蓄積出力があったことを判断し、ステップＳ７でリレーＬ２を作動してリレー接点ｌ２を閉じ、住棟用受信機７に対し発報移報信号を送出する。ここでステップＳ４の第１蓄積タイマ６０の蓄積時間Ｔ１に亘る蓄積動作中に火災感知器６の発報受信がなくなると、その時点で第１蓄積タイマ６０はリセットされ、蓄積解除により定常監視状態に戻る。
【０１０１】
またステップＳ２で住戸用受信機３の障害が検出された場合には、蓄積処理を行わず、ステツプＳ７へ進み、住棟用受信機７に対し発報移報信号を送出する。
このような図６の中継器５における第１蓄積タイマ６０の蓄積機能を用いた処理により、火災感知器６の誤発報があっても、中継器５に設けた第１蓄積タイマ６０の蓄積処理により住戸用受信機３に対する発報移報信号の送出は行われず、住戸用受信機３で誤警報が出されてしまうことを確実に防止できる。
【０１０２】
図７のフローチャートは、図５の実施形態において中継器５に第１蓄積タイマ６０を設け、住戸用受信機３に第２蓄積タイマ１６を設けた場合の他の実施形態であり、住戸用受信機３の停電や断線による障害状態で火災感知器６が誤発報した場合に、住棟用受信機７に対する発報移報信号の送出で誤警報が出されてしまうのを防止するようにしたことを特徴とする。
【０１０３】
この図７の蓄積処理のため、例えば中継器５の制御部１４の第１蓄積タイマ６０の第１蓄積時間Ｔ１は例えばＴ１＝６０秒とし、これに対し住戸用受信機３に設けた制御部１５の第２蓄積タイマ１６の蓄積時間Ｔ２は例えばＴ２＝２〜５分とする。このように第１蓄積タイマ６０の蓄積時間Ｔ１を第２蓄積タイマ１６の蓄積時間Ｔ２に比べ十分短く設定した点は、図６の蓄積処理の場合と同じである。
【０１０４】
図７の蓄積処理にあっては、ステップＳ１で火災感知器６の発報を受信した場合、ステップＳ２で、図６の場合と同様、住戸用受信機３の停電または断線等の障害を有電圧信号Ｖｃによりチェックし、有電圧信号が正常に得られていればステップＳ３に進み、蓄積処理を行わず直ちに住戸用受信機３に対し発報移報信号を送出し、住戸用受信機３側の第２蓄積タイマ１６を起動する。
【０１０５】
そして第２蓄積タイマ１６が、蓄積時間Ｔ２に亘る蓄積処理を終了すると、蓄積出力リレーＮの作動によりリレー接点ｎが開かれて、有電圧信号Ｖｃが遮断されると、中継器５の制御部１４はステップＳ４で有電圧信号Ｖｃが遮断から蓄積出力ありを判別し、ステップＳ５でリレーＬ２の作動によりリレー接点ｌ２を閉じ、住棟用受信機７に対し発報移報信号を送出する。
【０１０６】
このような蓄積処理は、図２の第１実施形態と基本的に同じである。これに対し図７の蓄積処理にあっては、住戸用受信機３側で停電や断線等の障害が起き、ステップＳ２で住戸用受信機３からの有電圧信号Ｖｃの遮断を認識すると、ステップＳ６に進み、第１蓄積タイマ６０を起動する。そして蓄積時間Ｔ１に亘って継続的に発報受信が得られてステップＳ７でタイムアップしたならば、ステップＳ５に進み、リレーＬ２を作動してリレー接点ｌ２を閉じることにより、住棟用受信機７に対し発報移報信号を送出する。
【０１０７】
このため住戸用受信機３側の障害により有電圧信号Ｖｃが遮断された状態で火災感知器６が誤発報しても、第１蓄積タイマ６０による蓄積後に住棟用受信機７に対する発報移報信号の送出が行われ、火災感知器６の誤発報に対し誤って発報移報信号が住棟用受信機７に送出されてしまうことがなく、住棟用受信機７の誤警報を確実に防止することができる。
【０１０８】
ここで図５の第４実施形態にあっては、住戸用受信機３から有電圧信号Ｖｃを中継器５に常時送っている信号回線５０に蓄積出力用のリレー接点ｎと火災断定用のリレー接点ａを直列に挿入しているが、リレー接点ｎとリレー接点ａごとに有電圧信号用の信号回線を別々に設けるようにしてもよい。
即ち図５の実施形態にあっては、火災感知器６が発報していない定常監視状態で、信号回線５０の有電圧信号Ｖｃが遮断された場合、住戸用受信機３側のＡＣ１００Ｖの停電と判断している。このため火災感知器６が発報する前に火災断定スイッチ１９を操作してリレー接点ａを開き、有電圧信号Ｖｃを遮断しても、中継器５の制御部１４は火災断定出力とは判断せず、住戸用受信機３の停電と判断してしまう。
【０１０９】
このため図５の実施形態にあっては、火災感知器６が発報している時にのみ火災断定スイッチ１９による火災断定出力が有効となる。そこで火災断定リレーＡのリレー接点ａを専用の有電圧電圧信号の信号回線に設けることで、火災感知器６の発報状態の如何に関わらず、火災断定スイッチ１９の操作による火災断定リレーＡの作動でリレー接点ａを開いて有電圧信号を遮断し、これによって中継器５の制御部１４に火災断定出力を判断させ、強制的に住棟用受信機７に対し発報移報信号を送出できるようにしてもよい。
【０１１０】
尚、上記の実施形態にあっては、住戸の中継器５と住棟用受信機７との間の回線により階別などの場所を判別しているが、各住戸、例えば中継器に固有にアドレスを設定して発報移報信号を住戸アドレスと共に伝送路によって住棟用受信機７に送ることで、住棟用受信機７において出火住戸を特定することもできる。また、出火住戸を特定することで、例えば「３階３０１号室で火災が発生しました。」のように、きめ細かな音声警報を行うことができる。
【０１１１】
また図２、図３の実施形態にあっては、住戸用受信機３において中継器５から発報移報信号を受信した際に直ちに警報表示及び音声警報を行っているが、少なくとも音声メッセージ警報については、発報移報信号の受信後、所定時間例えば３０秒経過してから出力するようにしてもよい。
このように音声警報を遅延させることで、もし火災感知器６が誤って発報した場合であっても３０秒間は音声メッセージ警報が行われないため、この間に火災感知器６が復旧すれば、音声メッセージ警報に従って住戸の居住者に復旧処理を行わせる等の必要がなく、不要な混乱を未然に防止できる。
【０１１２】
更に上記の実施形態にあっては、火災感知器６として自己復旧型の火災感知器を使用したが、発報時に発報状態を保持する自己保持型の火災感知器を使用してもよい。この自己保持型の火災感知器６を図２の第１実施形態で使用した場合には、中継器５は火災感知器６からの発報信号を受信して住戸用受信機３に対し発報移報信号を出力すると共に、火災感知器６に対する電源供給を一旦遮断して復旧し、この電源復旧後に再び発報信号を受信したら、同様にして発報移報信号を住戸用受信機３に出力する。
【０１１３】
住戸用受信機３にあっては、中継器５からの最初の発報移報信号を受けると、蓄積タイマ１６による蓄積処理を開始し、蓄積中に再度発報移報信号を受けると蓄積処理を終了して火災と判断し、中継器５に対し蓄積出力信号Ｅ１を出力するようにすればよい。
また図３の第２実施形態について自己保持型の火災感知器６を使用した場合には、中継器５において火災感知器６の発報信号を受信したら住戸用受信機３に発報移報信号を出力して蓄積タイマ４０による蓄積処理を開始し、次に火災感知器６への電源供給を一旦遮断しして復旧する。この電源復旧後、蓄積中に再び発報信号を受信したならば蓄積終了と判断し、住棟用受信機７に対し発報移報信号を送るようにすればよい。
【０１１４】
更に、上記の実施形態にあっては、中継器５は独立に設けてあったが、ドアホン子器４や住戸用受信機３の筐体内に収納されても良い。
【０１１５】
【発明の効果】
以上説明してきたように本発明によれば、各住戸の火災感知器及び中継器を住棟用受信機からの電源供給により動作するようにしたため、住戸が空き等となっていることで住戸用受信機への電源供給が断たれていても、その住戸の火災を確実に監視することができる。
【０１１６】
また火災感知器が誤って発報しても住棟用受信機に対し直ちに発報移報信号が送られずに住戸側で蓄積処理が行われ、蓄積中に火災感知器が復旧するかあるいは復旧スイッチが操作されると、蓄積処理がリセットされることで住棟用受信機に対する発報移報信号の送出は行われず、火災感知器の誤発報で住棟用受信機からの制御により周辺住戸での警報が行われることを防止し、誤報による混乱をなくすことができる。
【０１１７】
また住戸用受信機から中継器へ有電圧信号を送ることにより、有電圧信号の遮断から中継器側で住戸用受信機の停電や断線等の障害を確実に検出することができる。
また中継器に第１蓄積処理部を設け、住戸用受信機に第２蓄積処理部を設け、火災感知器が誤って発報しても中継器で第１段階の蓄積を行うようにしたため、住戸用受信機での誤報を未然に防止できる。
【０１１８】
更に、住戸用受信機に停電や断線等の障害があった場合、火災感知器の発報受信に対し中継器で蓄積を行った後に、住棟用受信機に発報移報信号を送るようにしたため、火災感知器に誤発報があっても、住棟用受信機から誤警報が出されてしまうことを確実に防止できる。
【図面の簡単な説明】
【図１】本発明のシステム構成図
【図２】住戸用受信機に蓄積タイマを設けた本発明の第１実施形態の回路ブロック図
【図３】中継器に蓄積タイマを設けた本発明の第２実施形態の回路ブロック図
【図４】火災感知器に代えてスプリンクラー消火設備の流水検出用の圧力スイッチを接続した本発明の第３実施形態の回路ブロック図
【図５】住戸用受信機から中継器に有電圧信号を送り、各々に蓄積タイマを設けた本発明の第４実施形態の回路ブロック図
【図６】図５で中継器と住戸用受信機に蓄積タイマを設けた場合の蓄積処理のフローチャート
【図７】図５で中継器と住戸用受信機に蓄積タイマを設けた場合の他の蓄積処理のフローチャート
【符号の説明】
１Ａ，１Ｂ：住戸
２：インターホン親器
３：住戸用受信機（住宅情報盤）
４：ドアホン子器
５：中継器
６：火災感知器
７：住棟用受信機
８：総合盤
９：火報用電源兼用信号回線
１０：制御用信号回線
１１：音声警報用信号回線
１２：，３２：受信部
１４，１５，３３：制御部
１６，４０：蓄積タイマ
１７，２６：火災灯
１８：復旧スイッチ
１９：火災断定スイッチ
２０，３４：音声合成部
２１：アンプ
２２，３２，３９：トランス
２３，３０，３８：スピーカ
２４，３７：電源部
２５：表示回路
３６：マトリクス回路
４２：流水検知装置
４４：閉鎖型スプリンクラーヘッド
４５：圧力スイッチ
５０：信号回線
６０：第１蓄積タイマ
Ｌ１：受信リレー
Ｌ２：移報リレー
Ａ：火災断定リレー
Ｂ：復旧リレー
Ｍ：スピーカ切替リレー
Ｎ：蓄積出力リレー
Ｋ：音声入力切替リレー[0001]
BACKGROUND OF THE INVENTION
The present invention provides a fire detector, a repeater, a dwelling unit receiver, and an intercom facility for each residence unit to be individually monitored, and a central building management room is provided with a dwelling unit receiver for centralized monitoring. It relates to a fire alarm system.
[0002]
[Prior art]
In conventional fire alarm systems for apartment buildings, when a fire detector is installed in a dwelling unit, a warning is issued by a housing information panel (dwelling unit receiver) or door phone installed in the dwelling unit. Is called. At the same time, a notification signal is sent to a receiver for a residential building that centrally monitors disaster prevention information installed in the center of a manager's room or the like via a house information panel or door phone. The receiver for the residential building that has received the notification signal, for example, rings the district bells installed on the fire floor and directly above the floor to notify the occurrence of a fire.
[0003]
Recently, a voice alarm system has been required instead of the district bell. For example, in the system disclosed in Japanese Patent Laid-Open No. 4-350800, alarms such as the fire floor and the directly above floor are controlled by sending a notification transfer signal from a receiver for a residential building installed in a manager's room in the event of a fire. For residential units that require notifications, switch the speaker of the doorphone unit installed at the entrance to the signal line for the voice alarm from the receiver for the residential building, such as "Woooo, a fire has occurred" Has been issued.
[0004]
At the same time, the receiver for the residential building also sends a notification transfer signal to the housing information panel installed in each dwelling unit that requires alarm notification, so that the alarm notification is also performed in the dwelling unit.
[0005]
[Problems to be solved by the invention]
However, in such a conventional fire alarm system for an apartment house, even if the fire detector makes a false alarm, the alarm report signal is immediately sent to the central residential receiver, For example, alarm notifications on housing information panels and fire alarms from doorphone handsets will be performed on the fire floor and directly above floors. There is a possibility of applying.
[0006]
In addition, since a normal housing information panel is operated by the power supply of each dwelling unit, in a system in which a fire detector is connected to the housing information panel and operated by power supply, the dwelling unit becomes empty. When the power of the dwelling unit is turned off, the housing information panel and the fire detector cannot receive power supply, and the fire at the dwelling unit cannot be monitored at all.
[0007]
The present invention has been made in view of the above-described conventional problems, and prevents alarm notifications for neighboring dwelling units when a fire detector makes a mistake, and the power is turned off on the dwelling unit side. However, it aims at providing the fire alarm system for apartment houses which can surely monitor a fire.
[0008]
[Means for Solving the Problems]
In order to achieve this object, the present invention is configured as follows. First, the present invention provides at least a fire detector, a repeater, and a dwelling unit receiver in each dwelling unit, and a dwelling unit receiver in the center of a management room, etc. The fire alarm system for apartment houses that sends a warning signal to each of the receiver for dwelling units and the receiver for the dwelling unit to issue an alarm when it is received at the target.
[0009]
In the present invention for such an apartment fire alarm system, While connecting the dwelling unit receiver of each dwelling unit so that it operates by the power supply of each dwelling unit, The fire detector and the relay device of each dwelling unit are connected to the receiver for the residential building via the relay device so that the fire detector and the relay device are operated by the power supply from the receiver for the residential building. For this reason, even if the power supply to the receiver for the dwelling unit is stopped, the fire detector and repeater operate with the power supply from the receiver for the dwelling unit. Even if it is, the fire of the dwelling unit can be reliably monitored.
[0010]
In addition, when a fire alarm is triggered on each dwelling unit, a storage process is performed to determine whether or not the alerting state continues for a predetermined time, and it is judged that the alerting state continues for a certain period of time. Is provided with a storage processing section for sending a notification transfer signal to the receiver for the residential building. For this reason, even if a fire detector reports an error, if the fire detector recovers during storage or the recovery switch is operated, the alarm transmission signal will not be sent to the receiver for residential buildings. In addition, it is possible to prevent the alarm notification from the dwelling unit receiver by the control from the dwelling unit receiver and the voice alarm from the door phone slave unit from being erroneously performed, and to prevent confusion due to the misinformation.
[0011]
More specifically, the storage processing unit is installed in the dwelling unit receiver of each unit, and when the alert transmission signal is received from the repeater, the accumulation operation of the accumulation processing unit is started and the alerting state exceeds a certain time. If it is determined that the continuation is to be continued, a notification transmission signal is sent to the receiver for the residence building via the repeater.
In addition, a storage processing unit may be installed in each repeater. In this case, when the fire detector receives a fire alarm from the repeater, the storage processing unit starts the storage operation, and the fire condition exceeds a certain time. If it is determined that the continuation will be continued, a notification transmission signal is sent to the receiver for the residential building.
[0012]
The storage processing unit resets the storage processing when receiving a recovery signal by operating a recovery switch provided in the dwelling unit receiver during the storage processing. Further, when the storage processing unit receives a fire determination signal by operating a fire determination switch provided in the receiver for the dwelling unit, the storage processing unit immediately sends a notification transfer signal to the receiver for the residential building regardless of the storage processing.
For storage cancellation processing when power supply to the dwelling unit receiver is not performed, if the storage processing unit is provided in the dwelling unit receiver, the accumulated output signal to the repeater in the power supply stop state from the dwelling unit A storage output unit is set in the receiver for dwelling units to enable the. For this reason, when the repeater sends an alarm report signal to the dwelling unit receiver by the fire detector, the accumulated output from the accumulation output unit is not supplied to the dwelling unit receiver. When the valid state of the signal is detected, an alarm transmission signal is immediately sent to the receiver for the residential building.
[0013]
On the other hand, when the storage unit is provided in the repeater, the receiver for dwelling unit is provided with a storage cancellation output unit that validates the storage cancellation signal for the repeater when the power supply from the dwelling unit is stopped. For this reason, the storage processing unit of the repeater does not supply power to the dwelling unit receiver when the alarm detection signal is sent to the dwelling unit receiver by the fire detector. When the valid state of the storage cancellation signal is detected, the storage processing is prohibited and an alarm transmission signal is immediately sent to the dwelling receiver.
[0014]
In addition, when a pressure switch that is turned on by the operation of the water flow detection device provided in the sprinkler fire extinguishing equipment is connected to the repeater, when a flow detection signal is received by turning on the pressure switch, For example, a notification transmission signal is sent immediately without accumulating. That is, when the sprinkler fire extinguishing equipment is operated, it is sure that there is a fire, and therefore a notification transfer signal is sent immediately.
[0015]
In the fire alarm system for apartment houses according to the present invention, an interphone facility in which an interphone master unit and a door phone slave unit are combined is provided in each dwelling unit. In this case, the repeater sends a warning transmission signal to the doorphone slave unit when a fire alarm is detected, and the doorphone slave unit that has received this warning notification signal sends a signal line to the receiver for the residential building. Turn on or blink your own fire indicator that is receiving power from the connection.
[0016]
The accumulation processing unit of the present invention differs depending on whether the fire detector is self-recovering or self-holding. If the fire detector is a self-healing fire detector that releases the alert state by itself when the fire condition is resolved, the accumulation processing unit starts the accumulation timer when the fire detector detects the alarm, If the fire detector stops reporting while the accumulation timer is running, it resets. If the alarm is not reset, the alarm output continues for a certain period of time.
[0017]
On the other hand, in the case of a self-holding fire detector in which the fire detector keeps the alarm state, the storage processing unit starts the storage timer when the fire detector detects the alarm and temporarily shuts off the power supply to the fire detector. After the power is restored, the power is turned on again. If there is no second notification within a predetermined time after the power is turned on again, the power is reset.
[0018]
Moreover, the receiver for dwelling units is provided with the control part which alert | reports alert | report by a voice alert etc. after predetermined time passes after receiving the alerting | reporting transmission signal from a repeater.
In another form of the fire alarm system for apartment houses of the present invention, a voltage output signal is output to the repeater in the power supply state of the dwelling unit from the accumulation output unit provided in the receiver for the dwelling unit, and the power supply of the dwelling unit is provided. The voltage signal is cut off when the stored output signal is sent to the repeater and the relay. For this reason, the repeater is determined to be a failure due to a power failure or the like on the receiver side of the dwelling unit when the voltage signal is interrupted in the steady monitoring state where the fire detector does not receive the alarm.
[0019]
When the repeater receives a fire alarm notification and the voltage signal from the dwelling unit receiver is interrupted, it immediately sends a notification transfer signal to the dwelling unit receiver. If a voltage signal is supplied when the sensor notification is received, a notification transmission signal is sent to the receiver for the dwelling unit. An alert / transmission signal will be sent to the receiver for the building.
[0020]
As a specific example of this voltage signal, the storage output unit of the dwelling unit receiver outputs the voltage signal to the light emitting element of the photocoupler provided in the repeater via the signal line to drive the light emission, and the storage output signal When the signal is sent out, the relay contact inserted and connected to the signal line of the voltage signal is opened to cut off the voltage signal, and the relay detects the block of the voltage signal when the light receiving output of the light receiving element of the photocoupler disappears .
[0021]
The storage processing unit also cuts off the voltage signal output to the repeater when receiving a fire determination signal by operating a fire determination switch provided in the receiver for dwelling units.
In addition, the storage processing unit detects this when the operation of the fire determination switch provided on the receiver for the dwelling unit is detected in a state in which it has not received the alarm transmission signal from the repeater due to the alarm from the fire detector. If the operation detection signal is held for a certain period of time, and a notification transmission signal is received from the repeater within a certain period of time, the voltage signal output to the repeater is cut off and the relay repeats within a certain period of time. When the transfer signal cannot be received, the holding of the operation detection signal is canceled.
[0022]
Further, the accumulation processing unit also cuts off the voltage signal output to the repeater when detecting disconnection of another signal line connecting the dwelling unit receiver and the repeater. By transmitting a voltage signal from such a dwelling unit receiver to the repeater, it is possible to reliably detect a power failure of the dwelling unit receiver or disconnection of the signal line on the repeater side.
As described above, the present invention can detect a failure such as a power failure or disconnection of the dwelling unit receiver on the repeater side, and can perform accumulation processing in which the accumulation function is distributed to the following repeater and dwelling unit receiver.
[0023]
In this distributed accumulation processing, a first accumulation processing unit (first accumulation timer) in which a first accumulation time T1 is set in the repeater is provided, and a second accumulation processing unit (in which a second accumulation time T2 is set in the dwelling unit receiver) ( A second accumulation timer) is provided. The first accumulation processing unit of the repeater starts the accumulation operation when receiving the alarm notification from the fire detector, and transfers the alarm to the dwelling unit receiver when the alarm state continues for the first accumulation time T1. Send an information signal.
[0024]
At this time, the second storage processing unit of the receiver for dwelling unit starts the storage operation when receiving the notification transmission signal from the repeater, and when the notification state continues for the second storage time T2, Sends a notification and transfer signal to the receiver for the residence building via the repeater. For this reason, even if the fire detector issues an error, the first stage of accumulation is performed by the repeater, so that it is possible to prevent an erroneous report from being received at the dwelling unit receiver.
[0025]
In addition, when the first signal processing unit of the repeater receives the fire detector notification and the voltage signal is cut off, the first processing unit immediately sends the notification notification signal to the receiver for the residential building.
In another form of the distributed accumulation process, when the first accumulation processing unit of the repeater receives the fire alarm notification, the voltage signal from the dwelling unit receiver is obtained ( When normal), a notification transmission signal is immediately sent to the dwelling unit receiver without performing the accumulation process, and when the voltage signal is cut off, the accumulation operation is started for the first accumulation time T1. When the notification state continues, a notification transfer signal is sent to the receiver for the residential building.
[0026]
In this case, as in the first embodiment, the second accumulation processing unit of the dwelling unit receiver starts the accumulation operation when receiving the alert transmission signal from the repeater, and emits it for the second accumulation time T2. When the reporting state continues, the voltage signal is cut off, and the alarm report signal is sent to the receiver for the residential building via the repeater.
In this mode, even if there is a failure such as a power failure or disconnection in the receiver for the dwelling unit, the alarm transmission signal is sent to the receiver for the residential building after accumulating with the repeater for the alarm reception of the fire detector. Since it sends out, it can prevent reliably that a false alarm will be given by the receiver for residential buildings by the malfunction of a fire detector.
[0027]
Here, the first accumulation time T1 of the repeater is sufficiently shorter than the second accumulation time T2 of the receiver for dwelling units.
[0028]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a system configuration diagram of a fire alarm system for an apartment house according to the present invention.
In FIG. 1, each dwelling unit of the apartment house is provided with an interphone master unit 2, a dwelling unit receiver 3, a doorphone sub unit 4, a repeater 5, and a fire detector 6, for example, as represented by the dwelling unit 1 A. . The interphone master unit 2 and the door phone slave unit 4 are interphone equipment, and the interphone master unit 2 is provided adjacent to the dwelling unit receiver 3 or in the same housing.
[0029]
Further, the door phone sub unit 4 is installed at the entrance of the dwelling unit, and a call can be made with the interphone base unit 2 by pressing a call button. The fire detector 6 is connected to the signal line for power supply from the repeater 5. When a fire is detected and an alarm is issued, the alarm is received by the repeater 5 and sent to the receiver 3 for dwelling units. A signal is sent and a fire alarm and alarm is displayed.
[0030]
Further, in this embodiment, the dwelling unit receiver 3 is provided with a speaker, so that a voice alarm can be given when a fire occurs by voice synthesis. In contrast to such units on the dwelling units 1A and 1B, a dwelling receiver 7 for centrally monitoring each dwelling unit is installed on the central side of the manager room or the like. From the dwelling unit receiver 7, a fire alarm signal line 9, a control signal line 10, and a voice alarm signal line 11 are drawn out to the dwelling units 1 A and 1 B. The repeater 5 of the dwelling units 1A and 1B is connected to the fire alarm signal line 9. The control signal line 10 is connected to the doorphone slave unit 4 of each dwelling unit. Furthermore, the door alarm unit 4 of each dwelling unit is also connected to the voice alarm signal line 11. Further, a comprehensive board 8 is connected to the fire alarm signal line 9, the control signal line 10 and the voice alarm signal line 11 from the receiver 7 for the residential building. The general panel 8 is provided with a fire transmitter, a speaker for sound alarm and an indicator lamp.
[0031]
In such a fire alarm system for apartment houses, in the present invention, the relay unit 5 and the relay unit provided in the dwelling units 1A and 1B from the power source of the residential building receiver 7 through the fire alarm signal line 9 Power is supplied to the fire detector 6 connected to 5. Furthermore, power is supplied from the side of the residential building receiver 7 to the fire display portion of the door phone sub unit 4 provided in the dwelling units 1A and 1B. On the other hand, the power supply is performed in each of the dwelling units 1 A and 1 B to the parts other than the fire display portion of the intercom master unit 2, the dwelling unit receiver 3, and the doorphone sub unit 4.
[0032]
Further, the dwelling unit receiver 3 or the repeater 5 on the dwelling units 1A and 1B side is provided with an accumulation processing unit. For this reason, only when the fire detector 6 issues a warning, the warning signal is not sent immediately to the receiver 7 for the building, and when the warning state continues for a certain predetermined accumulation time, A notification transfer signal is sent to the receiver 7 for the residential building.
FIG. 2 is a first embodiment of the present invention in the system configuration of FIG. 1, and is characterized in that a storage processing unit is provided on the side of the dwelling unit receiver 3.
[0033]
In FIG. 2, first, the repeater 5 is provided with a receiving unit 12, and a fire sensor 6 is connected to the sensor line drawn from the receiving unit 12, and a termination resistor R is connected to the end of the sensor line. is doing. In this embodiment, the fire detector 6 uses a self-returning fire detector that recovers when the fire condition disappears after the alarm is issued. The repeater 5 is provided with a control unit 14.
[0034]
The control unit 14 is connected to a reception relay L1 that is operated by the transistor Q1, and is connected to a transfer relay L2 that is operated by the transistor Q2. The reception relay L1 has a relay contact l1, and this relay contact l1 is connected to the dwelling unit receiver 3 side.
The relay relay L2 has a relay contact l2, and the relay contact l2 is connected to the residential building receiver 7 side. That is, the relay contact L1 outputs an alarm transmission signal to the dwelling unit receiver 3 by closing the contact. Further, the relay contact l2 outputs a notification transfer signal to the dwelling receiver 7 by closing the contact.
[0035]
When the control unit 14 receives the notification detection signal when the reception unit 12 receives the notification of the fire detector 6, the control unit 14 operates the reception relay L1 by closing the transistor Q1 to close the relay contact l1, thereby A notification transmission signal is transmitted to the receiver 3 for use. At the same time, the control unit 14 sends out a notification transfer signal E3 to the door phone sub unit 4 to display a fire.
[0036]
Further, the control unit 14 operates the transfer relay L2 by turning on the transistor Q2 when receiving the accumulated output signal E1 based on the accumulation process in the receiver 3 for the dwelling unit after detecting the alarm of the fire detector 6. Then, by closing the relay contact l2, a warning transmission signal based on the accumulation process is sent to the receiver 7 for the house building. Further, when receiving the fire determination signal E4 from the dwelling unit receiver 3 side, the transmission relay L2 is forcibly operated to immediately send out a notification transmission signal to the dwelling unit receiver 7.
[0037]
The dwelling unit receiver 3 is provided with a control unit 15, and the control unit 15 incorporates an accumulation timer 16 that functions as an accumulation processing unit. A fire lamp 17, a recovery switch 18, and a fire determination switch 19 are connected to the control unit 15. Further, a speaker switching relay M, an accumulation output relay N, and a fire determination relay A that are turned on and off by transistors Q3, Q4, and Q5 are connected as control relays.
[0038]
The accumulation output relay N has a switching relay contact n and constitutes an accumulation output circuit together with the transistor Q4. The storage output relay N is placed in an operating state by turning on the transistor Q4 in an operating state in which the receiver 3 for dwelling unit is supplied with AC 100V from a breaker of the dwelling unit. The switching relay contact n of the accumulation output relay N connects the relay contact l1 of the reception relay L1 provided in the relay 5 to the switching contact piece, connects the switching terminal a side to the control unit 15, and relays the switching terminal b side. It is connected as a signal line of the accumulated output signal E1 to the control unit 14 of the device 5.
[0039]
When the AC 100V power supply to the dwelling unit receiver 3 is turned off, the accumulation output relay N becomes inactive and the switching relay contact n is set to the b side as in the accumulation output due to the time-up of the accumulation timer 16. And the effective state of the accumulated output signal E1 is created. For this reason, when the power supply of the dwelling unit receiver 3 is turned off, the control unit 14 of the repeater 5 immediately enters the same operation state as when the storage output signal E1 is received when the relay contact 11 of the reception relay L1 is closed.
[0040]
Since the accumulation output relay N is in an operating state by turning on the transistor Q4 in a steady monitoring state where power is normally supplied, the switching relay contact n is switched to the a side as shown in the figure, and the relay contact of the repeater 5 is switched. 11 is connected to the control unit 15. For this reason, when the operation of the reception relay L1 is performed in the repeater 5 by the detection detection of the fire detector 6, the relay contact l1 is closed, so that the control unit 15 of the dwelling unit receiver 3 is notified via the switching relay contact a. An information transfer signal is sent.
[0041]
Specifically, when the relay contact l1 is closed, the port of the control unit 15 is pulled to the L level via the switching relay contact n and the relay contact l. Receives an information signal. When the control unit 15 receives the alert transmission signal from the repeater 5, it starts the accumulation timer 16. In the accumulation timer 16, for example, a certain accumulation time is set in advance for a range of 2 to 5 minutes.
[0042]
Once the accumulation timer 16 is activated, the accumulation operation is stopped and the timer reset is performed when the alert transmission signal from the repeater 5 is interrupted during accumulation, that is, when the reception relay L1 is restored and the relay contact l1 is opened. It becomes. The accumulation timer 16 during accumulation is reset in the same manner when the recovery switch 18 connected to the control unit 15 is turned on or the fire determination switch 19 is turned on.
[0043]
When the accumulation timer 16 is started and the input of the alert transmission signal continues beyond the preset accumulation time, the accumulation timer 16 times up when the accumulation time is reached and the transistor Q4 is turned off. By doing so, the accumulation output relay N is restored. When the storage output relay N is restored, the switching relay contact n is switched to the b side. At this time, since the relay contact 11 of the repeater 5 is closed, the input port of the accumulated output signal E1 of the control unit 14 is pulled to the L level by being grounded through the switching relay contact n and the relay contact 11. The controller 14 of the repeater 5 recognizes the output of the accumulated output signal E1.
[0044]
The fire determination relay A is activated when the transistor Q5 is turned on when the fire determination switch 19 is turned on in the dwelling unit receiver 3 regardless of the accumulation of the accumulation timer 16, and the relay contact a1 is closed to control the repeater 5. By drawing the signal line of the fire determination signal E4 for the unit 14 to the L level, the control unit 14 is made to recognize the fire determination. When the control unit 14 recognizes the fire determination signal E4, the control relay 14 immediately operates the transmission relay L2 and sends a notification transmission signal to the dwelling receiver 7.
[0045]
Further, when the recovery switch 18 is turned on in the dwelling unit receiver 3, the control unit 15 performs the recovery process to the steady monitoring state including the reset of the accumulation timer 16 and the operation of the accumulation output relay N.
Furthermore, the receiver 3 for dwelling units is provided with a voice synthesizer 20, an amplifier 21, a transformer 22 and a speaker 23 to perform a voice alarm. The speaker 23 is selectively switched and connected to each audio signal line on the dwelling unit side and the dwelling unit receiver 7 side by switching relay contacts m1 and m2 of the speaker switching relay M. That is, in the steady monitoring state, the speaker switching relay M is inactive due to the transistor Q3 being turned off, and the switching relay contacts m1 and m2 are connected to the audio signal line from the residential building receiver 7 as shown in the figure. It is switched to the a side.
[0046]
When the control unit 15 receives the alert transmission signal from the repeater 5, the speaker switching relay M is activated by turning on the transistor Q3, the switching relay contacts m1 and m2 are switched to the b side, and the voice signal line from the transformer 22 is connected. The speaker 23 is connected. With this switching connection, the audio signal output upon activation of the voice synthesizer 20 is supplied to the speaker 23 via the amplifier 21 and the transformer 22, and a voice message alarm can be issued.
[0047]
The speaker switching relay M further includes switching relay contacts m3 and m4. The switching relay contacts m3 and m4 disconnect the doorphone slave unit 4 from the interphone master unit 2 and receive the audio signal from the voice synthesizer 20 to the speaker 30 provided in the doorphone slave unit 4 when receiving the alert transmission signal. Thus, a voice message alarm can be issued from the doorphone slave unit 4. Furthermore, the dwelling unit receiver 3 is provided with a power supply unit 24, which receives a supply of AC 100V and supplies a specified DC power supply voltage Vc to each circuit unit.
[0048]
The door phone sub unit 4 includes a display circuit 25 and a door phone circuit 27. The display circuit 25 lights up the fire lamp 26 and displays an alarm. The display circuit 25 connects the 24 V power line, which is the power line of the fire alarm signal line 9 from the receiver 7 for the residential building, and the common line C. Furthermore, the output line of the alert transmission signal E3 from the control part 14 of the repeater 5 is connected. For this reason, when receiving the alert transmission signal E3 based on the alert detection in the controller 14 of the repeater 5, the display circuit 25 lights or blinks the fire lamp 26 to display an alarm.
[0049]
A call switch 28, a microphone 29, and a speaker 30 are connected to the door phone circuit 27. The speaker 30 is switched to the door phone circuit 27 side and the residential building receiver 7 side by switching relay contacts k3 and k4 of the voice input control relay K provided in the door phone slave unit 4.
Relay contacts k1 and k2 of the voice input control relay K are inserted and connected to the connection line of the voice alarm signal line 11 from the receiver 7 for the residential building. A transformer 31 is connected to the secondary side of the relay contacts k1 and k2, and an audio warning signal line branched from the primary side of the transformer 31 is connected to the speaker 23 side of the dwelling unit receiver 3. The secondary side of the transformer 31 is connected to the b side of the switching relay contacts k3, k4.
[0050]
The voice input control relay K is selectively turned on by the control when the housing building receiver 7 receives the alert transmission signal from the repeater 5. When the voice input control relay K is turned on, the relay contacts k1 and k2 are closed, and a voice signal from the dwelling receiver 7 can be input. At the same time, the switching relay contacts k3 and k4 are switched from the a side to the b side in the figure, the speaker 30 of the doorphone slave unit 4 is disconnected from the doorphone circuit 27 and connected to the secondary side of the transformer 31, The voice message alarm can be output by the voice signal.
[0051]
Next, the receiver 7 for residential buildings will be described. A receiver 32 is provided in the dwelling unit receiver 7, and a notification transmission signal based on the accumulation processing from the dwelling unit side repeater 5, that is, a notification when the relay contact l2 is turned on by the operation of the transmission relay L2. A transfer signal is received, and a reception output is generated in the control unit 33. Here, the receiving unit 32 of the dwelling unit receiver 7 shows one corresponding to the relay unit 5 of the dwelling unit shown in the figure. For example, a plurality of receiving units 32 are provided for each floor, and are drawn from each receiving unit 32. A plurality of relay units 5 of the dwelling unit on the floor are connected to the connected line. For this reason, the control part 33 can discriminate | determine from which dwelling unit the alert transmission signal was sent from the receiving output of the receiving part 32.
[0052]
The control relay 33 includes control relays T1, T2,..., Tn corresponding to the number of monitoring areas monitored by the receiver 7 for residential buildings, for example, in the case of floor monitoring, the transistors Q11. , Q12,..., Q1n can be turned on and off. A matrix circuit 36 is provided in order to cause the dwelling unit 7 to issue a sound alarm to the necessary dwelling units corresponding to the control relays T1 to Tn.
[0053]
The matrix circuit 36 is connected to the control signal line 10 having the control lines B1, B2,..., Bn corresponding to the rank n, and controls the diodes D1 to Dn for each of the control lines B1 to Bn. A series circuit of relay contacts t1 to tn of the relays T1 to Tn is provided. For this reason, when the fire detector 6 issues a notification in one of the dwelling units and the notification transmission signal is received by the residential building receiver 7, the control unit 33 issues a notification in the corresponding control relay, for example, the first floor. If the control relay T1 is turned on, the relay contact t1 of the matrix circuit 36 is closed, and the control voltage is applied by the control line B1 via the diode D1. Supply to the input control relay K and operate.
[0054]
Further, in the matrix circuit 36, for example, the output side of the relay contact t1 is connected via the diode D12 to the control line B2 corresponding to the floor immediately above the fire occurrence floor. As a result, in addition to the first floor that is reported when the relay contact t1 is turned on, a control voltage is also output to the control line B2 on the second floor, which is directly above the first floor, and the door phone sub-unit provided in all the second floor dwelling units 4 voice input control relay K can be activated.
[0055]
Furthermore, the residential building receiver 7 is provided with a voice synthesizer 34 and a power amplifier 35. The voice synthesizing unit 34 is activated when the control unit 33 receives a notification and transmission signal from the dwelling unit. For example, the voice synthesizing unit 34 synthesizes a voice message indicating that a fire has occurred on the first floor. The voice signal is amplified and sent to the dwelling unit via the voice warning signal line 11. At this time, in the door phone sub unit 4 that receives the control voltage from the control line via the matrisk circuit 36 on the dwelling unit side, the relay contacts k1 and k2 are closed by the operation of the voice input control relay K, and the switching relay contact Since k3 and k4 are switched to the b side, the audio signal from the dwelling receiver 7 is supplied to each of the speaker 30 of the door phone slave unit and the speaker 23 of the dwelling unit receiver 3 to issue a voice message alarm. Can do.
[0056]
In addition, the dwelling receiver 7 is provided with a power supply unit 37, which generates a specified DC power supply voltage Vc from AC100V. Based on this power supply voltage Vc, power is supplied to the repeater 5 on the dwelling unit side by the + 24V power supply line and the common line C of the fire alarm signal line 9 drawn from the receiver 7 for residential buildings. That is, the fire detector 6 is connected to the power supply line from the residential building receiver 7 via the receiving unit 12 of the repeater 5 and operates by supplying power from the residential building receiver 7.
[0057]
Of course, the receiving unit 12, the control unit 14, the transistors Q 1 and Q 2, and further the relays L 1 and L 2 provided in the repeater 5 operate similarly by power supply from the receiver 7 for residential buildings. Further, the display circuit 25, the fire light 26 and the relay K provided in the door phone sub unit 4 are also operated by power supply from the receiver 7 for residential buildings.
A relay V is provided in the general panel 8 provided in a common part such as a corridor, and the power is supplied when the relay contact t1 in the matrix circuit 36 is turned on, and the speaker 38 is connected via the transformer 39. On the other hand, when the relay contacts v1 and v2 are turned on, the voice signal output from the voice synthesizer 34 of the dwelling receiver 7 is supplied, so that a voice message alarm can be issued from the general panel 8 as well.
[0058]
Next, the operation of the embodiment of FIG. 2 will be described. For example, when the fire detector 6 provided in the dwelling unit on the first floor issues a notification, the reception unit 12 of the repeater 5 detects the notification and outputs a notification detection signal to the control unit 14. Upon receiving the notification detection signal, the control unit 14 drives the reception relay L1 to close the relay contact l1, and sends the notification transfer signal to the control unit 15 of the dwelling unit receiver 3. At this time, the control unit 14 also outputs a notification transmission signal E3 to the display circuit 25 of the door phone slave unit 4 to turn on or blink the fire lamp 26 provided in the door phone slave unit 4.
[0059]
The control unit 15 of the dwelling unit receiver 3 turns on the fire lamp 17 when receiving the alert transmission signal from the repeater 5, operates the speaker switching relay M, and switches the switching relay contacts m1 and m2 to the b side. 23 is switched to the dwelling unit receiver 3 side, and the switching relay contacts m3 and m4 are switched to the b side to switch the speaker 30 of the door phone sub unit 4 to the dwelling unit receiver 3 side.
[0060]
Then, the voice synthesizer 20 is activated and, for example, a voice message such as “Sensor has triggered. Please check. If there is a false alarm, press the recovery switch.” From the speaker 30 of the device 4. Further, the control unit 15 starts the accumulation timer 16 when receiving the alert transmission signal from the repeater 5.
[0061]
When the fire detector 6 is restored during the operation of the accumulation timer 16, that is, during counting, that is, when the driving of the reception relay L1 is stopped and the relay contact l1 is opened, or when the restoration switch 18 is operated, Perform recovery processing. In this restoration process, the fire light 17 of the dwelling unit receiver 3 is turned off, the speaker switching relay M is restored to inactive, the operation of the speech synthesizer 20 is stopped, and the accumulation timer 16 is reset again. .
[0062]
When the accumulation timer 16 expires, the control unit 15 stops the operation of the accumulation output relay N that is in the operating state in the steady monitoring state, and switches the switching relay contact n to the b side. When the switching relay contact n is switched to the b side, the accumulated output signal E1 for the control unit 14 of the repeater 5 is pulled into the L level and becomes effective, and the port to which the accumulated output signal E1 is supplied changes from the H level to the L level. When the control unit 14 detects this switching, the relay relay L2 is actuated to close the relay contact l2. When the relay contact l2 is closed, the L and C of the fire alarm signal line 9 drawn out from the receiver 7 for housing is short-circuited, and the alarm transmission signal is sent to the receiver 7 for housing.
[0063]
The receiving unit 32 of the dwelling receiver 7 receives the alert transmission signal from the repeater 5 and outputs it to the control unit 33. The control unit 33 discriminates the fire floor to which the fire-dwelling unit belongs from the line of the receiving unit 32 that has received the notification transfer signal, and in order to issue a warning to the necessary location, for example, the fire floor and the directly above floor, In the case of the first floor, the control relay T1 is activated to warn the dwelling units on the first and second floors.
[0064]
For this reason, the relay contact t1 of the matrix circuit 36 is closed, and the control voltage is supplied to the control line B1 on the first floor and the control line B2 on the second floor, so that the voice input control relay K provided in the doorphone slave unit 4 is activated. At the same time as the relay contacts k1 and k2 are closed, the switching relay contacts k3 and k4 are switched to the b side, and the speaker 30 of the door phone slave unit 4 is connected to the audio warning signal line 11 from the receiver 7 for the residential building.
[0065]
Here, in the dwelling unit where the fire detector 6 has not reported, since the speaker switching relay M of the dwelling unit receiver 3 is not activated, the switching relay contacts m1 and m2 are for dwelling as shown in the figure. It has switched to the receiver 7 side. In the dwelling unit that the fire detector 6 has reported, the switching relay contacts m1 and m2 switch the speaker 23 to the dwelling unit receiver 3 side by the operation of the speaker switching relay M. When the control relay K is activated, the speaker 30 of the door phone sub unit 4 is switched to the housing ridge receiver 7 side.
[0066]
For this reason, when the control unit 33 of the receiver 7 for residential buildings activates the voice synthesis unit 34, synthesizes a voice message indicating that a fire has occurred on the fire floor, for example, the first floor, and outputs it via the power amplifier 35, From the dwelling unit receiver 7 for each of the speaker 23 of the dwelling unit receiver 3 of each dwelling unit excluding the fired dwelling unit on the second floor and the speaker 30 of the doorphone sub unit 4 of all dwelling units including the fired dwelling unit The voice signal “Wow, fire. Fire is on fire. Fire on the first floor. Please evacuate after confirming safety.” Is alerted. Similarly, a voice message alarm is issued from the speaker 38 of the general board 8 provided in the shared section on the first and second floors.
[0067]
Next, the operation when the AC 100V power is not supplied to the dwelling unit receiver 3 will be described. When the AC 100V power supply is not supplied to the dwelling unit receiver 3, all the circuits of the dwelling unit receiver 3 are stopped, the switching relay contact n of the storage output relay N is switched to the b side in the non-operating state, The accumulated output signal E1 for the control unit 14 can be pulled to the L level when the relay contact l1 is turned on by the reception relay L1 of the repeater 5 when the fire detector 6 is activated.
[0068]
For this reason, when the fire detector 6 is activated, the relay contact 11 of the repeater 5 is closed, and at this time, the switching relay contact n is switched to the b side, so that the accumulated output signal E1 for the control unit 14 is L indicating the accumulated output. The control unit 14 determines the accumulated output state after the accumulation is completed in the dwelling unit receiver 3 and activates the transfer relay L2 to close the relay contact l2, thereby issuing a notification to the dwelling unit receiver 7. Send a message.
[0069]
In other words, when the fire detector 6 issues a report, the repeater 5 can immediately send a notification transfer signal to the receiver 7 for the residential building, and can give a sound alarm to a necessary location, for example, the fire occurrence floor and the directly above floor. it can. For this reason, even if the dwelling unit becomes empty and the AC100V power supply to the dwelling unit receiver 3 is cut off, the fire in the dwelling unit can be reliably monitored.
[0070]
Further, the fire light 20 of the door intercom unit 4 of the dwelling unit reported by the fire detector 6 is supplied with power from the receiver 7 for the residential building, and therefore lights or blinks when receiving the notification transfer signal E3. . Therefore, it is possible to confirm the dwelling unit for which the report has been issued from the outside.
FIG. 3 shows a second embodiment of the fire alarm system for apartment houses according to the present invention. The second embodiment is characterized in that an accumulation processing unit is provided in the relay 5 of the dwelling unit.
[0071]
In FIG. 3, the control unit 14 of the repeater 5 is provided with an accumulation timer 40 that functions as an accumulation processing unit. The accumulation timer 40 starts when it receives a report detection signal from the receiving unit 12 by a report from the fire detector 6, and times up when the report detection signal is maintained for a predetermined period of time, The transfer relay L2 is activated, the relay contact l2 is closed, and a notification transfer signal is sent to the dwelling receiver 7.
[0072]
Along with the provision of the accumulation timer 40 in the control unit 14 of the repeater 5, the dwelling unit receiver 3 is newly provided with a recovery relay B driven by the transistor Q6. The recovery relay B has a relay contact b1 and outputs a recovery signal E5 to the control unit 14 of the repeater 5. The recovery relay B is activated when the recovery switch 18 provided in the control unit 15 of the dwelling unit receiver 3 is turned on, closes the relay contact b1, and recovers by drawing the recovery signal line from the control unit 14 to the L level. The output state of signal E5 is created.
[0073]
Upon receiving the restoration signal E5, the control unit 14 performs the operation stop of the reception relay L1, the accumulation timer 40 is cleared, and the fire lamp 26 of the doorphone slave unit 4 is turned off.
Further, when the fire determination switch 19 of the dwelling unit receiver 3 is operated, the fire determination relay A is turned on, the relay contact a1 is closed, and the transfer relay L2 is activated regardless of the accumulation operation of the accumulation timer 40, The relay contact l2 is turned on to send a notification and transfer signal to the dwelling receiver 7. At this time, during the accumulation, the accumulation timer 40 may be reset.
[0074]
Further, when AC100V power is not supplied to the dwelling unit receiver 3, the switching relay contact n is closed to the b side by the non-operation of the relay N, and the accumulation cancellation signal for the accumulation timer 40 of the control unit 14 of the repeater 5 Enable output of E6. In this state, when the fire detector 6 is triggered and the relay contact l1 is closed, the signal line of the accumulation cancellation signal E6 for the control unit 14 is pulled to L level, thereby canceling the accumulation function of the accumulation timer 40 and immediately. The relay contact l2 is closed by the operation of the transfer relay L2, and a notification transfer signal can be sent to the receiver 7 for a residential building.
[0075]
That is, the accumulation cancellation output circuit that makes the signal state of the accumulation cancellation signal E6 for the repeater 5 valid when AC100V is cut off is constituted by the transition Q4, the relay N, and the switching relay contact n of the receiver 3 for dwelling units. . Other configurations and operations are the same as those of the first embodiment shown in FIG.
FIG. 4 shows a third embodiment of the apartment house fire alarm system according to the present invention. In this embodiment, instead of the fire detector 6 provided in the sensor line from the repeater 5 in FIGS. Furthermore, the pressure switch 46 provided in the flowing water detection apparatus of the sprinkler fire extinguishing equipment is connected.
[0076]
In FIG. 4, a pressure switch 45 for detecting detection of flowing water provided for the flowing water detection device 42 provided in the water supply pipe 41 of the sprinkler fire extinguishing equipment is connected to the sensor line from the receiving unit 12 of the repeater 5. The A closed-type sprinkler head 44 is connected to the water supply pipe on the secondary side of the water flow detector 42, and is filled with fire-extinguishing water that has a prescribed pipe pressure in a steady monitoring state.
[0077]
When the closed sprinkler head 44 is actuated by a fire and fire-extinguishing water is ejected, the valve is opened along with the pressure drop on the secondary side of the flowing water detection device 42, and the flowing water accompanying this valve opening is detected by the pressure switch 45. . The pressure switch 45 is provided with a limit switch 46 that is switched from the a side to the b side by the operation of the flowing water detection device 42. The sensor line from the repeater 5 is connected to the common side of the limit switch 46 and the switching terminal b side, and a termination resistor 47 is connected between the switching terminals a and b.
[0078]
In the non-operating state of the flowing water detection device 42 in which the limit switch 46 is closed to the a side, a weak current determined by the termination resistor 47 flows through the receiving unit 12. When the flowing water detection device 42 is operated by the operation of the closed sprinkler head 44 and the limit switch 46 of the pressure switch 45 is switched to the b side, a short-circuit current flows to the receiving unit 12 by bypassing the termination resistor 47, and the flowing water detection device The reception output by the operation of 42 is given to the control unit 14. As a result, the control unit 14 operates the reception relay L1 and closes the relay contact l1.
[0079]
In this way, when the pressure switch 45 in the water flow detection device 42 of the sprinkler fire extinguishing equipment is connected to the sensor line from the repeater 5, the accumulation function by the accumulation timer 16 provided in the receiver 3 for dwelling units becomes unnecessary. . This is because the sprinkler head is in operation because the fire has spread considerably, so it immediately sends a warning signal to the receiver 7 for the building and alerts the necessary dwelling unit. It is because you have to do.
[0080]
Therefore, the signal line terminal for the switching relay contact n of the dwelling unit receiver 3 at the relay contact l1 of the repeater 5 and the signal line terminal of the accumulated output signal E1 from the dwelling unit receiver 3 are bypass-connected by a jumper line 48. Then, the effective state of the accumulated output signal E1 is fixedly generated.
When the relay contact l1 is closed due to the bypass connection by the jumper wire 48, the accumulated output signal E1 for the control unit 14 is pulled to L level regardless of the operation on the receiver 3 side of the dwelling unit. By actuating L2 and closing the relay contact l2, it is possible to immediately send a notification transfer signal to the receiver 7 for a residential building. Other configurations and operations are the same as those in the embodiment of FIG.
[0081]
Further, the embodiment of FIG. 3 can be similarly applied by bypass-connecting the signal line terminal of the relay contact 11 of the repeater 5 and the signal line terminal of the accumulation release signal E6 by the jumper line 48.
FIG. 5 is a fourth embodiment of a fire alarm system for apartment houses according to the present invention, which can detect a power failure or disconnection of a dwelling unit receiver on the repeater side, and further relays a storage function with the dwelling unit receiver. It is characterized by being distributed in a vessel.
[0082]
In the embodiment of FIG. 5, in order for the repeater 5 to detect a non-occupancy at the dwelling unit receiver 3, a power supply stop state due to a power failure, etc., the dwelling unit receiver 3 receives the repeater 5 from the dwelling unit. It is configured to always output a voltage signal in the power supply state. That is, the signal line 50 is drawn from the control unit 15 of the dwelling unit receiver 3 to the control unit 14 of the repeater 5.
[0083]
A photocoupler 52 is connected to the repeater 5 side of the signal line 50, one of the signal lines 50 is pulled up to the power supply voltage, and the voltage signal Vc is supplied from the dwelling unit receiver 3 to the repeater 5 in normal times. ing. The photocoupler 52 includes a light emitting element 54 and a phototransistor 56. If the voltage signal Vc is normally supplied from the dwelling unit receiver 3, the light emitting element 54 is driven to emit light, and the phototransistor 56 receives light from the control unit 14. Input is obtained.
[0084]
The relay contact n of the storage output relay N provided in the dwelling unit receiver 3 and the relay contact a of the fire determination relay A are inserted and connected in series to one line of the signal line 50 for sending the voltage signal Vc. Yes. The relay contacts n and a are both normally closed contacts and are closed as shown in the figure when the accumulated output or the fire deterministic output by the on operation of the fire determinate switch 19 is not performed.
[0085]
When the relay contact n is opened by the operation of the accumulation output relay N based on the accumulation output of the control unit 15, the voltage signal Vc to the repeater 5 is interrupted. Similarly, when the relay contact a is opened by the operation of the fire determination relay A by the operation of the fire determination switch 19, the voltage signal Vc to the repeater 5 is interrupted. Further, the voltage signal Vc to the repeater 5 is cut off even in a power supply stop state such as at the time of a power failure in which the dwelling unit common power supply AC100V to the dwelling unit receiver 3 is cut off.
[0086]
For this reason, if the voltage signal Vc from the dwelling unit receiver 3 is cut off due to a power failure and the input from the photocoupler 52 is cut off due to a power failure in the steady monitoring state where the fire detector 6 does not receive the alarm, the repeater 5 The control unit 14 can recognize the power failure on the receiver 3 side of the dwelling unit by cutting off the input from the photocoupler 52.
Next, the operation of the fourth embodiment in which a voltage signal is normally sent from the dwelling unit receiver 3 to the repeater 5 will be described. Normally, the normally closed relay contact n for accumulation output and the normally closed relay contact a for fire determination of the signal line 50 are closed, and the voltage signal Vc is outputted from the dwelling unit receiver 3 to the repeater 5. Yes. The controller 14 of the repeater 5 inputs this voltage signal Vc through the photocoupler 52 and monitors it.
[0087]
When the fire detector 6 reports, the control unit 14 of the repeater 5 operates the relay L1 based on the notification received from the receiving unit 12, closes the relay contact l1, and is a signal pulled up to the power supply voltage + Vc. The line 58 is connected to the ground and pulled to the L level, thereby outputting a notification transmission signal to the receiver 3 for dwelling units.
The control unit 15 of the dwelling unit receiver 3 starts the accumulation timer 16 when receiving the alert transmission signal from the repeater 5, and activates the accumulation output relay N when time is up. When the accumulation output relay N is operated, the relay contact n is opened, so that the voltage signal Vc to the repeater 5 is interrupted. The control unit 14 of the repeater 5 recognizes the interruption of the voltage signal Vc when the input from the photocoupler 52 is lost, and determines that the accumulation ends when the fire detector 6 is in the alarm reception state. Then, the relay L2 is actuated to close the relay contact l2, and the alarm transmission signal is transmitted to the dwelling receiver 7.
[0088]
When the fire determination switch 19 is operated during the accumulation of the accumulation timer 16 of the dwelling unit receiver 3, the control unit 15 activates the fire decision relay A regardless of the accumulation operation of the accumulation timer 16. When the relay contact a is opened by the operation of the fire determination relay A, the voltage signal Vc to the repeater 5 is cut off and stopped. The control unit 15 of the repeater recognizes the interruption of the voltage signal Vc when the input from the photocoupler 52 is lost, and determines that the accumulation ends when the fire detector 6 is in the alarm reception state. Then, the relay L2 is actuated to close the relay contact l2, and a notification transmission signal to the residential building receiver 7 is transmitted.
[0089]
Further, when the AC 100V power supply from the dwelling unit to the dwelling unit receiver 3 is cut off, the voltage signal Vc is placed in the cut-off state and is not output. It is possible to determine that the AC 100V power supply to the dwelling unit receiver 3 has been cut off by eliminating the input from. In this state, when the control unit 14 detects the alarm of the fire detector 6, the relay L2 is immediately activated, the relay contact 12 is closed, and the alarm notification signal is transmitted to the dwelling receiver 7.
[0090]
In the embodiment of FIG. 5, the fire determination relay A and the storage output relay N are provided separately, and the respective relay contacts a and n are inserted in series in a signal line 50 for sending a voltage signal. However, the fire determination relay A and the storage output relay N may be shared by one relay, and only one relay contact may be provided on the signal line 50.
In this case, when the accumulation timer 16 is timed up by the software processing in the control unit 15 or the fire determination switch 19 is operated, the common relay is operated, and the relay contact is opened to stop the output by cutting off the voltage signal. Can be done.
[0091]
Further, the control unit 15 of the dwelling unit receiver 3 checks the signal line 50 for disconnection by monitoring the signal line 50 outputting the voltage signal Vc constantly or periodically by voltage or current. be able to. In addition, for the signal line 58 for sending a notification transmission signal from the repeater 5 to the control unit 15, the termination resistor R is connected to the terminal on the repeater 5 side, and a monitoring current is passed to constantly or periodically by voltage or current. Similarly, the disconnection of the signal line 58 may be monitored.
[0092]
In the disconnection monitoring of the signal line 58, when the control unit 15 detects the disconnection, the voltage signal Vc of the signal line 50 to the repeater 5 can be interrupted to notify the repeater 5 of the failure due to the disconnection.
For this reason, when the input from the photocoupler 52 is lost in the normal monitoring state where the fire detector 6 has not triggered the alarm, the repeater 5 has a AC 100V power outage in the dwelling unit receiver 3 or the signal lines 50 and 58. When it is determined that a failure has occurred due to disconnection, and the fire detector 6 reports in this failure state, the relay L2 is immediately activated and the relay contact l2 is closed, so that the notification is transferred to the receiver 7 for the residential building. Send an information signal.
[0093]
In the embodiment of FIG. 5, if the fire determination switch 19 of the dwelling unit receiver 3 is operated and the fire detector 6 is not already received by the repeater 5, No alert / transmission signal is transmitted to the building receiver 7. However, since it is conceivable that the residents detect a fire earlier than the alarm of the fire detector 6 and operate the fire determination switch 19, the operation of the fire determination switch 19 is detected and held for a certain period of time. Even when the fire detector 6 is notified, the notification transmission signal may be immediately transmitted to the receiver 7 for the residential building.
[0094]
In this case, the control unit 15 of the dwelling unit receiver 3 detects the operation of the fire determination switch 19 in a state where it does not receive the alert transmission signal from the repeater 5 due to the alert notification of the fire detector 6. Then, the operation detection signal is held for a certain time (for example, 1 minute). When a notification transmission signal is received from the repeater 5 by receiving a notification from the fire detector 6 within a predetermined time holding the operation detection signal, the fire determination relay A is activated regardless of the accumulation operation. By opening the relay contact a, the voltage signal Vc to the repeater 5 is interrupted.
[0095]
The control unit 14 of the repeater 5 detects that the input from the photocoupler 52 is lost, determines that the accumulation has been completed because the fire detector 6 is in the alarm reception state, and sends it to the receiver 7 for the residential building. Send an information transfer signal. Moreover, the control part 15 of the receiver 3 for dwelling units will cancel | release holding | maintenance of an operation detection signal, and will be in a normal monitoring state, when the alerting | reporting transmission signal from the repeater 5 is not received within a fixed time.
[0096]
Further, the relay 5 may hold the fixed time by operating the fire determination switch 19. In this case, when the control unit 15 of the dwelling unit receiver 3 detects the operation of the fire determination switch 19, the control unit 15 operates the fire determination relay A for a short period of time, and opens the relay contact a to thereby repeat the relay 5. The voltage signal Vc with respect to is cut off.
The control unit 14 of the repeater 5 detects that the input from the photocoupler 52 disappears for a short time, holds this operation detection signal for a certain time (for example, 1 minute), and within the certain time, the fire detector 6 When a notification is detected, a notification transfer signal is transmitted to the dwelling receiver 7. Also in this case, when the fire detector 6 cannot detect the alarm within a certain time, the operation detection signal is released and the normal monitoring state is set.
[0097]
Next, in the embodiment of FIG. 5, an embodiment in which the accumulation processing function is provided on each of the repeater 5 side and the dwelling unit receiver 3 side to distribute the accumulation processing will be described. That is, the control unit 14 of the repeater 5 is newly provided with a first accumulation timer 60 in which the first accumulation time T1 is set, and in contrast to this, the control unit 15 of the dwelling unit receiver 3 is already provided. The accumulation timer 16 has a function as a second accumulation timer in which the second accumulation time T2 is set.
[0098]
The first accumulation time T1 of the first accumulation timer 60 provided in the control unit 14 of the repeater 5 is, for example, T1 = 60 seconds, and the second accumulation of the second accumulation timer 16 provided in the control unit 15 of the receiver 3 for dwelling units. The time is, for example, T2 = 1 to 4 minutes. That is, the accumulation time T1 of the first accumulation timer 60 is set sufficiently shorter than the accumulation time T2 of the second accumulation timer 16.
The flowchart of FIG. 6 is a flowchart of the control process of the repeater 5 in which the first accumulation timer 60 is provided in the control unit 14. In step S 1, the alarm reception by the alarm of the fire detector 6 is monitored. If the alarm reception is determined, the process proceeds to step S 2, and the dwelling unit receiver 3 based on the presence or absence of a voltage signal from the dwelling unit receiver 3. Check for faults such as power failure or disconnection of the dwelling unit receiver 3.
[0099]
If the voltage signal Vc is normally obtained from the dwelling unit receiver 3 via the photocoupler 52, the process proceeds to step S3, and the first accumulation timer 60 is started. The accumulation time T1 of the first accumulation timer is T1 = 60 seconds, for example. In step S4, the elapse of the accumulation time T1 is checked. When the time is up, the process proceeds to step S5. When the contact l1 is closed, an alarm transmission signal is transmitted.
[0100]
For this reason, the second accumulation timer 16 of the dwelling unit receiver 3 starts the accumulation operation in response to the notification transfer signal after the accumulation time T1 from the notification reception of the fire detector 6. When the second accumulation timer 16 expires at the accumulation time T2, the voltage output signal Vc is cut off by operating the accumulation output relay N to open the relay contact n.
The controller 14 of the repeater 5 determines that there is an accumulated output in step S6 due to the absence of the input of the photocoupler 52 due to interruption of the voltage signal Vc, and operates the relay L2 in step S7 to activate the relay contact. l2 is closed, and a warning transmission signal is sent to the dwelling receiver 7. Here, when the fire detector 6 stops receiving the alarm during the accumulation operation for the accumulation time T1 of the first accumulation timer 60 in step S4, the first accumulation timer 60 is reset at that time, and the normal monitoring state is established by releasing the accumulation. Return to.
[0101]
If a failure in the dwelling unit receiver 3 is detected in step S2, the storage process is not performed, and the process proceeds to step S7, where a notification transfer signal is sent to the dwelling unit receiver 7.
Due to the processing using the accumulation function of the first accumulation timer 60 in the repeater 5 of FIG. 6, accumulation of the first accumulation timer 60 provided in the repeater 5 is possible even if there is a false alarm of the fire detector 6. As a result of the processing, the sending and receiving signal is not transmitted to the dwelling unit receiver 3, and it is possible to reliably prevent the dwelling unit receiver 3 from issuing a false alarm.
[0102]
The flowchart of FIG. 7 is another embodiment in which the first accumulation timer 60 is provided in the repeater 5 and the second accumulation timer 16 is provided in the dwelling unit receiver 3 in the embodiment of FIG. To prevent a false alarm from being sent out when a fire alarm 6 is erroneously reported due to a power failure or disconnection of the machine 3 and a warning signal is sent to the receiver 7 for a residential building. It is characterized by that.
[0103]
For the accumulation process of FIG. 7, for example, the first accumulation time T1 of the first accumulation timer 60 of the control unit 14 of the repeater 5 is T1 = 60 seconds, for example, and the control unit provided in the dwelling unit receiver 3 The accumulation time T2 of the 15 second accumulation timers 16 is, for example, T2 = 2 to 5 minutes. As described above, the accumulation time T1 of the first accumulation timer 60 is set to be sufficiently shorter than the accumulation time T2 of the second accumulation timer 16 as in the accumulation process of FIG.
[0104]
In the accumulation process of FIG. 7, when the alarm of the fire detector 6 is received in step S1, there is a failure such as a power failure or disconnection of the dwelling unit receiver 3 in step S2, as in FIG. If the voltage signal Vc is checked and if the voltage signal is obtained normally, the process proceeds to step S3, and without being accumulated, a notification transfer signal is immediately sent to the receiver 3 for dwelling unit. Side second accumulation timer 16 is started.
[0105]
When the second accumulation timer 16 finishes the accumulation process over the accumulation time T2, the relay contact n is opened by the operation of the accumulation output relay N, and when the voltage signal Vc is cut off, the control unit of the repeater 5 In step S4, it is determined in step S4 that the voltage signal Vc is interrupted and the accumulated output is present, and in step S5, the relay contact L2 is closed by the operation of the relay L2, and a notification transmission signal is sent to the dwelling receiver 7.
[0106]
Such accumulation processing is basically the same as in the first embodiment of FIG. On the other hand, in the storage process of FIG. 7, when a failure such as a power failure or a disconnection occurs on the dwelling unit receiver 3 side and the block of the voltage signal Vc from the dwelling unit receiver 3 is recognized in step S 2, Proceeding to S6, the first accumulation timer 60 is activated. If the notification reception is continuously obtained over the accumulation time T1 and the time is up in step S7, the process proceeds to step S5, where the relay L2 is activated and the relay contact l2 is closed. 7 sends an alert / transmission signal.
[0107]
For this reason, even if the fire detector 6 makes a false alarm when the voltage signal Vc is cut off due to a fault on the receiver 3 side of the dwelling unit, the alarm is issued to the receiver 7 for the residential building after the accumulation by the first accumulation timer 60. The transmission signal is transmitted, and the false alarm signal of the fire detector 6 is not erroneously transmitted to the receiver 7 for the residential building. An alarm can be reliably prevented.
[0108]
Here, in the fourth embodiment of FIG. 5, the relay contact n for storage output and the relay for determining fire are connected to the signal line 50 that constantly sends the voltage signal Vc from the dwelling unit receiver 3 to the repeater 5. Although the contact a is inserted in series, a signal line for a voltage signal may be separately provided for each of the relay contact n and the relay contact a.
That is, in the embodiment of FIG. 5, when the voltage signal Vc of the signal line 50 is interrupted in the steady monitoring state where the fire detector 6 has not triggered the alarm, the AC 100V power failure on the receiver 3 side of the dwelling unit Judging. For this reason, even if the fire determination switch 19 is operated to open the relay contact a before the fire detector 6 issues the alarm and the voltage signal Vc is interrupted, the control unit 14 of the repeater 5 determines that it is a fire determination output. Without it, it will be judged as the power failure of the receiver 3 for dwelling units.
[0109]
Therefore, in the embodiment of FIG. 5, the fire determination output by the fire determination switch 19 is effective only when the fire detector 6 is reporting. Therefore, by providing the relay contact a of the fire determination relay A to the dedicated signal line of the voltage signal, the fire determination relay A can be operated by the operation of the fire determination switch 19 regardless of the alarm state of the fire detector 6. The relay contact a is opened by the operation to cut off the voltage signal, thereby causing the control unit 14 of the repeater 5 to determine the fire deterministic output, and forcibly sending the alerting signal to the receiver 7 for residential buildings. You may be able to do it.
[0110]
In the above embodiment, the location such as the floor is determined by the line between the repeater 5 of the dwelling unit and the receiver 7 for the dwelling unit. By setting an address and sending a notification transfer signal together with the dwelling unit address to the dwelling unit receiver 7 through the transmission path, the dwelling unit can be identified in the dwelling unit receiver 7. In addition, by specifying the fire-breaking unit, a detailed voice alarm can be performed, for example, “A fire has occurred in room 301 on the third floor.”
[0111]
Further, in the embodiment shown in FIGS. 2 and 3, the alarm display and the voice alarm are immediately performed when the alert signal transmission signal is received from the repeater 5 in the receiver 3 for dwelling units. May be output after a predetermined time, for example, 30 seconds elapses after receiving the alert transmission signal.
By delaying the voice alarm in this way, even if the fire detector 6 is inadvertently triggered, the voice message alarm is not performed for 30 seconds, so if the fire detector 6 recovers during this time, There is no need to cause the residents of the dwelling unit to perform recovery processing according to the voice message alarm, and unnecessary confusion can be prevented in advance.
[0112]
Further, in the above-described embodiment, the self-restoring type fire sensor is used as the fire sensor 6, but a self-holding type fire sensor that holds the alerting state at the time of reporting may be used. When this self-holding type fire detector 6 is used in the first embodiment of FIG. 2, the repeater 5 receives a notification signal from the fire detector 6 and notifies the dwelling unit receiver 3 of the notification. When the alarm signal is output and the power supply to the fire detector 6 is cut off and then restored, and the alarm signal is received again after the power is restored, the alarm signal is sent to the dwelling unit receiver 3 in the same manner. Output.
[0113]
In the receiver 3 for dwelling units, when the first alert transmission signal from the repeater 5 is received, the accumulation process by the accumulation timer 16 is started, and when the alert notification signal is received again during accumulation, the accumulation process is started. It is determined that a fire has occurred and the accumulated output signal E1 is output to the repeater 5.
Further, when the self-holding fire detector 6 is used in the second embodiment of FIG. 3, when the alarm signal of the fire detector 6 is received by the repeater 5, the alarm notification signal is sent to the dwelling unit receiver 3. Is output and the accumulation process by the accumulation timer 40 is started, and then the power supply to the fire detector 6 is temporarily cut off to recover. After the power supply is restored, if the alert signal is received again during accumulation, it is determined that the accumulation is completed, and the alert transfer signal may be sent to the receiver 7 for residential buildings.
[0114]
Furthermore, although the repeater 5 is provided independently in the above embodiment, it may be housed in the housing of the door phone slave unit 4 or the dwelling unit receiver 3.
[0115]
【The invention's effect】
As described above, according to the present invention, the fire detectors and repeaters of each dwelling unit are operated by supplying power from the receiver for the dwelling unit. Even if the power supply to the receiver is cut off, the fire of the dwelling unit can be reliably monitored.
[0116]
In addition, even if a fire alarm is triggered in error, the alert processing signal is not sent immediately to the receiver for the residential building, and the accumulation process is performed on the dwelling unit side. When the recovery switch is operated, the accumulation process is reset, so that the alarm transmission signal is not sent to the receiver for the residential building, and it is controlled by the receiver for the residential building due to the false alarm of the fire detector. It is possible to prevent alarms from being made at neighboring dwelling units and to eliminate confusion caused by misinformation.
[0117]
Further, by sending a voltage signal from the dwelling unit receiver to the repeater, it is possible to reliably detect failures such as a power outage or disconnection of the dwelling unit receiver on the repeater side from the interruption of the voltage signal.
In addition, because the first accumulation processing unit is provided in the repeater, the second accumulation processing unit is provided in the receiver for dwelling units, and the first stage of accumulation is performed with the repeater even if the fire detector generates an error, It is possible to prevent false alarms in the receiver for dwelling units.
[0118]
In addition, if there is a failure such as a power failure or disconnection in the receiver for the dwelling unit, it will accumulate the fire detector's alarm reception with the repeater, and then send the alarm notification signal to the receiver for the residential building Therefore, even if there is a false alarm in the fire detector, it is possible to reliably prevent the false alarm from being issued from the receiver for the residential building.
[Brief description of the drawings]
FIG. 1 is a system configuration diagram of the present invention.
FIG. 2 is a circuit block diagram of the first embodiment of the present invention in which an accumulation timer is provided in a receiver for dwelling units.
FIG. 3 is a circuit block diagram of a second embodiment of the present invention in which an accumulation timer is provided in the repeater.
FIG. 4 is a circuit block diagram of a third embodiment of the present invention in which a pressure switch for detecting flowing water of a sprinkler fire extinguishing facility is connected instead of a fire detector.
FIG. 5 is a circuit block diagram of a fourth embodiment of the present invention in which a voltage signal is sent from a dwelling unit receiver to a repeater, and an accumulation timer is provided for each.
FIG. 6 is a flowchart of the accumulation process when an accumulation timer is provided in the repeater and the dwelling unit receiver in FIG.
FIG. 7 is a flowchart of another accumulation process when an accumulation timer is provided in the repeater and the dwelling unit receiver in FIG.
[Explanation of symbols]
1A, 1B: Dwelling unit
2: Intercom master unit
3: Receiver for dwelling unit (house information board)
4: Doorphone handset
5: Repeater
6: Fire detector
7: Receiver for residential building
8: Comprehensive board
9: Fire alarm power signal line
10: Signal line for control
11: Signal line for voice alarm
12 :, 32: Receiver
14, 15, 33: Control unit
16, 40: Accumulation timer
17, 26: Fire lights
18: Recovery switch
19: Fire determination switch
20, 34: Speech synthesis unit
21: Amplifier
22, 32, 39: Transformer
23, 30, 38: Speaker
24, 37: Power supply
25: Display circuit
36: Matrix circuit
42: Flowing water detection device
44: Closed sprinkler head
45: Pressure switch
50: Signal line
60: First accumulation timer
L1: Reception relay
L2: Relay relay
A: Fire determination relay
B: Recovery relay
M: Speaker switching relay
N: Accumulation output relay
K: Voice input switching relay

Claims

Each dwelling unit is provided with at least a fire detector, a repeater, and a dwelling unit receiver, and a dwelling unit receiver is provided in the center of an administrator room, etc., and the fire alarm of the fire detector is received by the repeater. In the case of a fire alarm system for an apartment house which sends a warning signal to each of the receiver for dwelling units and the receiver for dwelling units to give an alarm notification,
Connecting the dwelling unit receiver of each dwelling unit so as to operate by supplying power to each dwelling unit, and operating the fire detector and repeater of each dwelling unit by supplying power from the dwelling unit receiver connection,
A storage process is performed on each of the dwelling units to determine whether or not the fire alarm state continues for a predetermined time when the fire detector issues, and the alarm state exceeding the predetermined time is continued. A fire alarm system for an apartment house, characterized in that an accumulation processing unit is provided for sending a notification transfer signal to the receiver for a residential building when it is judged.

2. The fire alarm system for apartment houses according to claim 1, wherein the accumulation processing unit is provided in a dwelling unit receiver of each dwelling unit, and the accumulation processing unit accumulates when receiving a notification transfer signal from the repeater. When the operation is started and when it is determined that the reporting state continues for a certain period of time, a notification transfer signal is sent to the receiver for the residential building via the repeater. Fire alarm system.

2. The fire alarm system for an apartment house according to claim 1, wherein the accumulation processing unit is provided in a repeater of each dwelling unit, and the accumulation operation of the accumulation processing unit is performed when the fire detector is notified by the repeater. The fire alarm system for apartment houses is characterized in that, when it is determined that continuation of the alarm state exceeding the predetermined time is started, an alarm report signal is transmitted to the receiver for the residential building.

4. The fire alarm system for an apartment house according to claim 2, wherein the accumulation processing unit accumulates when receiving a restoration signal by operating a restoration switch provided in the receiver for the dwelling unit during the accumulation process. A fire alarm system for apartment houses, characterized by resetting the processing.

4. The fire alarm system for apartment houses according to claim 2 or 3, wherein the storage processing unit performs a storage process when receiving a fire determination signal by operating a fire determination switch provided in the receiver for dwelling units. A fire alarm system for an apartment house, characterized by immediately sending a notification and transfer signal to the receiver for the residential building regardless of the above.

In the fire alarm system for apartment houses according to claim 2, the receiver for dwelling units is provided with a storage output unit which makes the stored output signal for the repeater effective in a state where power supply from the dwelling unit is stopped,
The repeater is configured to output the accumulated output from the accumulated output unit without supplying power to the receiver for the dwelling unit when the alarm transmission signal is transmitted to the receiver for the dwelling unit by the fire detector. A fire alarm system for an apartment house, in which when a valid state of a signal is detected, an alarm report signal is immediately sent to the receiver for a residential building.

The fire alarm system for apartment houses according to claim 3, wherein the receiver for dwelling units is provided with a storage cancellation output unit that enables a storage cancellation signal for the repeater in a state where power supply from the dwelling unit is stopped,
The accumulation processing unit of the repeater outputs the accumulation cancellation output without supplying power to the dwelling unit receiver when sending a notification transfer signal to the dwelling unit receiver by issuing a fire detector. When a valid state of the accumulation cancellation signal from the section is detected, the accumulation notification is prohibited and the alarm notification signal is immediately transmitted to the residential building receiver.

In the fire alarm system for apartment houses according to claim 1, when a pressure switch which is turned on by operation of a water flow detection device provided in a sprinkler fire extinguishing equipment is connected to the repeater, a water flow detection signal by turning on the pressure switch. A fire alarm system for an apartment house, which immediately sends a notification / transfer signal to the receiver for a residential building when receiving the message.

The fire alarm system for apartment houses according to claim 1, further comprising an interphone facility that combines an interphone master unit and a door phone slave unit in each dwelling unit, wherein the repeater is configured to detect a fire alarm. The doorphone slave unit that has sent the alarm notification signal to the doorphone slave unit, and the doorphone slave unit that has received the alert notification signal has received its power supply through the signal line connection with the receiver for the residential building. A fire alarm system for an apartment house characterized by lighting or blinking an indicator lamp.

In the fire alarm system for apartment houses in any one of Claims 1 thru | or 9,
If the fire detector is a self-healing fire detector that releases the alert state by itself when the fire condition is resolved,
The accumulation processing unit starts the accumulation timer at the time of detection of the alarm of the fire detector, resets the alarm when the alarm of the fire sensor stops during the operation of the accumulation timer, and the reset is performed. A fire alarm system for an apartment house, in which the accumulated output is performed when the alarm state continues for the predetermined time.

In the fire alarm system for apartment houses in any one of Claims 1 thru | or 9,
If the fire detector is a self-holding fire detector that maintains the alert state,
The accumulation processing unit starts the accumulation timer at the time of detection of the fire detector and shuts off the power supply to the fire detector and restores power, and then turns on the power again. A fire alarm system for an apartment house, which is reset when there is no second report within a predetermined time and performs a stored output when there is a second report.

The fire alarm system for apartment houses according to any one of claims 1 to 3, wherein the receiver for the dwelling unit issues an alarm notification after a predetermined time has elapsed after receiving the alert transmission signal from the repeater. A fire alarm system for apartment houses, characterized in that a control unit is provided.

In the fire alarm system for apartment houses according to claim 2,
The dwelling receiver, and outputs the chromatic voltage signal to the repeater in a power supply state from the dwelling unit, the chromatic voltage signal during transmission of accumulated output signal for the power supply stop state and the relay from dwelling An accumulation output section is provided to shut off,
The repeater determines that there is a failure due to a power failure or the like of the dwelling unit receiver when the voltage signal is interrupted in a state where the fire detector does not receive the alarm notification. system.

In the fire alarm system for apartment houses according to claim 13,
If the voltage signal is interrupted when the repeater receives a fire alarm notification, the repeater immediately sends a notification transfer signal to the residential building receiver, while the fire detector When the voltage signal is supplied when the notification is received, the notification transmission signal is sent to the dwelling unit receiver, and then when the blocking of the voltage signal is detected, A fire alarm system for an apartment house, characterized in that an alarm report signal is sent to the receiver for the residential building.

In the fire alarm system for apartment houses according to claim 13,
The storage output unit of the dwelling unit receiver outputs a voltage signal to a light emitting element of a photocoupler provided in the repeater via a signal line to drive light emission, and when the stored output signal is transmitted, Open the relay contact inserted and connected to the signal line to cut off the voltage signal,
The fire alarm system for apartment houses, wherein the repeater detects the interruption of the voltage signal when the light receiving output of the light receiving element of the photocoupler is lost.

14. The fire alarm system for an apartment house according to claim 13, wherein the accumulation processing unit outputs a voltage to the repeater when detecting an operation of a fire determination switch provided in the dwelling unit receiver. Fire alarm system for apartment houses characterized by blocking the signal.

14. The fire alarm system for an apartment house according to claim 13, wherein the storage processing unit outputs to the repeater when a disconnection of another signal line connecting the receiver for dwelling units and the repeater is detected. A fire alarm system for an apartment house, characterized by shutting off a voltage signal.

In the fire alarm system for apartment houses according to claim 13,
When the accumulation processing unit detects the operation of the fire determination switch provided in the receiver for the dwelling unit in a state where the notification transmission signal from the repeater due to the notification of the fire detector is not received, Holds the operation detection signal for a certain period of time, and when receiving the alert transmission signal from the repeater within the certain period of time, shuts off the voltage signal output to the repeater, and The fire alarm system for an apartment house, wherein the holding of the operation detection signal is canceled when the alarm transmission signal cannot be received from the repeater.

In the fire alarm system for apartment houses in any one of Claims 13 thru | or 18, While providing the 1st accumulation | storage process part which set the 1st accumulation | storage time in the said repeater, it is 2nd accumulation | storage in the said dwelling unit receiver. A second accumulation processing unit that sets the time is provided,
The first accumulation processing unit of the repeater starts the accumulation operation when receiving the notification of the fire detector, and when the notification state continues for the first accumulation time, Send a notification transfer signal,
When the second accumulation processing unit of the receiver for dwelling unit receives the alert transmission signal from the repeater, the accumulating operation is started and the alert state is continued for the second accumulation time. A fire alarm system for an apartment house, wherein an alarm signal is transmitted to the receiver for the residential building via the repeater.

The fire alarm system for apartment houses according to claim 19, wherein when the voltage signal is interrupted when the first processing unit of the repeater receives the alarm of the fire detector, A fire alarm system for an apartment house, which immediately sends a warning signal to the receiver for a residential building.

In the fire alarm system for apartment houses in any one of Claims 13 thru | or 18,
A first accumulation processing unit that sets a first accumulation time is provided in the repeater, and a second accumulation processing unit that sets a second accumulation time is provided in the receiver for dwelling units,
The first accumulation processing unit of the repeater immediately performs the accumulation process without performing the accumulation process when a voltage signal is obtained from the receiver for the dwelling unit when receiving the notification of the fire detector. When a notification transmission signal is sent to the receiver and the voltage signal is cut off, the storage operation is started and the notification state continues for the first storage time. Send a notification and transfer signal to the receiver,
When the second storage processing unit of the receiver for dwelling unit receives the notification transmission signal from the repeater, the second storage processing unit starts the storage operation and the notification state continues for the second storage time. A fire alarm system for an apartment house, which cuts off a voltage signal and sends an alarm report signal to the receiver for the residential building via the repeater.

In the fire alarm system for apartment houses in any one of Claims 19 thru | or 21, the 1st accumulation | storage time of the said repeater was set to the time short enough with respect to the 2nd accumulation | storage time of the said receiver for dwelling units. A fire alarm system for apartment houses.