JP3863667B2 - Fire alarm system for apartment houses - Google Patents

Fire alarm system for apartment houses Download PDF

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JP3863667B2
JP3863667B2 JP18733898A JP18733898A JP3863667B2 JP 3863667 B2 JP3863667 B2 JP 3863667B2 JP 18733898 A JP18733898 A JP 18733898A JP 18733898 A JP18733898 A JP 18733898A JP 3863667 B2 JP3863667 B2 JP 3863667B2
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signal
fire
receiver
output
test
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JP2000020843A (en
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賢治 池田
清明 小山
真二 中村
和弘 吉田
剛 桑野
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Hochiki Corp
Panasonic Corp
Panasonic Holdings Corp
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Hochiki Corp
Panasonic Corp
Matsushita Electric Industrial Co Ltd
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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、住戸用受信機及び戸外表示器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】
従来の共同住宅用火災報知システムにあっては、住戸内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）から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火災信号が送られる。火災信号を受けた住棟用受信機は、例えば出火階及びその直上階の各住戸の住戸用受信機に地区音響制御信号及び音声警報信号を送り、住戸用受信機やドアホン（戸外表示器）のスピーカを鳴動させる。また同時に住棟用受信機は、出火階及びその直上階に設置されている共用部スピーカを鳴動させて火災発生を報知する。
【０００３】
図５はこのような従来の共同住宅用火災報知システムの一例の構成を示すブロック図である。この図に示す共同住宅用火災報知システムには、住棟用受信機１と中継器３との間に自火報総合盤２が設けられ、自火報総合盤２は警戒区域毎に例えば各階毎に配置される。この自火報総合盤２にはリレーＢＦ，ＢＮ，スピーカ７等が設けられており、リレーＢＦ，ＢＮは住棟用受信機１からの地区音響制御信号Ｅ６で作動する。この場合、リレーＢＮの作動により、リレー接点ｂnが閉じると、自火報総合盤２のスピーカ７に住棟用受信機１からの音声警報信号Ｅ７が供給されるようになる。またリレーＢＦの作動によりリレー接点ｂfが閉じると、住棟用受信機１からの音声警報信号Ｅ７が自火報総合盤２を介して戸外表示器５及び共用部スピーカ６に供給されるようになり、さらに自火報総合盤２、中継器３を介して住戸用受信機４にも供給されるようになる。地区音響制御信号Ｅ６は自火報総合盤２に供給されると共に自火報総合盤２から中継器３を介して住戸用受信機４と戸外表示器５に供給される。
【０００４】
中継器３には、感知器回線１１ａ，１１ｂを介して自己復旧型の火災感知器１０，１０が並列接続されており、この自己復旧型の火災感知器１０，１０は、火災による熱や煙などを検出することで、感知器回線１１ａ，１１ｂ間に発報電流を流す。この発報電流が中継器３に出力されると、中継器３内の受信回路１２の受信リレーＬが作動し、そのリレー接点ｌを閉じて感知器作動信号（以下、単に「作動信号」という）Ｅ１が住戸用受信機４に出力される。また、この受信リレーＬの作動と同時に保持リレー回路１３の保持リレーＭも作動して、そのリレー接点ｍ1，ｍ2を閉じて、火災信号の出力許容状態及び作動信号Ｅ１の保持許容状態が作り出される。
【０００５】
住戸用受信機４では、中継器３より作動信号Ｅ１が入力されると、受信回路１４の受信リレーＲが作動し、例えば１０秒間継続して作動すると、作動信号Ｅ１の受信状態が保持されると共に保持リレーＨが作動し、そのリレー接点ｈが閉じて、中継器３に対し「Ｌ」レベルとなる保持信号Ｅ２が出力される。この保持信号Ｅ２が出力されると、中継器３ではリレー接点ｆ2を介して保持回路１７が作動し、保持リレー回路１３の保持リレーＭを火災感知器１０が復旧しても非作動とならないように保持する。また保持回路１７は、同時に戸外表示器５に対する供給電圧を＋１２Ｖから火災信号Ｅ８となる＋２４Ｖに変化させて火災表示を行わせる。戸外表示器５の検出回路１９は火災信号Ｅ８となる＋２４Ｖを検出して表示灯２０を点滅させる。住戸用受信機４は、中継器３より作動信号Ｅ１を入力することで、自己の音声合成部２７を起動し、火災感知器１０の作動を示すメッセージを合成し、アンプ２８で増幅した後、リレー接点ｄｃを介してスピーカ２６から出力する。
【０００６】
また、住戸用受信機４では、中継器３より作動信号Ｅ１が送られてきた時から２〜５分の範囲内の所定時間の監視が行われる。すなわち、作動信号Ｅ１が入力されると、受信リレーＲが作動すると同時に、２〜５分の遅延時間Ｔ１が設定されているタイマ１５が起動し、このタイマ１５がタイムアップすると、リレー接点ｔ1が開き、有電圧信号が遮断されることで火災確定信号Ｅ３が中継器３に出力される。住戸用受信機４は、火災確定信号Ｅ３を出力する際に、音声合成部２７で火災発生を示すメッセージを合成し、アンプ２８で増幅した後、リレー接点ｄｃを介してスピーカ２６から出力する。住戸用受信機４より火災確定信号Ｅ３が出力されることで有電圧信号が遮断されると、中継器３では、フォトカプラ２１の出力が「Ｌ」レベルから「Ｈ」レベルになり、インバータ２２で「Ｌ」レベルに反転されて出力されることで、この時点で既にリレー接点ｍ2は閉じられて出力許容状態となっていることから、火災確定移報リレーＳに電流が流れ作動する。火災確定移報リレーＳが作動すると、リレー接点ｓ1が閉じて「Ｌ」レベルとなる火災信号Ｅ４が火報信号線２３を介して住棟用受信機１へ出力される。またリレー接点ｓ2が閉じて、住棟用受信機１からの確認信号Ｅ５の受信可能状態が作り出される。
【０００７】
住棟用受信機１では、中継器３からの火災信号Ｅ４を火報信号線２３を介して受けることで、火災代表表示及び地区表示が行われる。また同時に火災代表リレー（図示略）を作動すると共に、対応する地区リレー（図示略）が作動する。火災代表リレーの作動によりそのリレー接点ｆaが閉じ、中継器３に対し確認信号線２４を介して確認信号Ｅ５が出力される。住棟用受信機１より確認信号Ｅ５が出力されると、中継器３ではリレーＦが作動し、そのリレー接点ｆ1を閉じて、既に閉じているリレー接点ｍ1との直列回路により住戸用受信機４に対する作動信号Ｅ１の出力状態が継続保持される。またリレー接点ｆ2が開くことで住戸用受信機４からの保持信号Ｅ２の入力が切り離され、中継器３の保持回路１７の保持動作が住棟用受信機１からの確認信号Ｅ５により行われる。
【０００８】
更に住棟用受信機１にあっては、図示せぬ地区リレーの作動により、近隣住戸、具体的には火災発生階及びその直上階の住戸に対し地区音響制御信号Ｅ６を出力する。この火災発生階及びその直上階の住戸に対する地区音響制御信号Ｅ６は住戸用受信機４及び戸外表示器５に与えられ。この際、出火住戸以外の近隣の住戸用受信機４にあっては、地区音響制御信号Ｅ６によりフォトカプラ２５のフォトトランジスタがオンしてリレーＢが作動し、リレー接点ｂを開くことでリレーＤＣが不作動になり、そのリレー接点ｄｃが音声警報信号線９側に切り換わりスピーカ２６が接続され、音声警報信号線９からの音声警報信号Ｅ７の入力が可能となる。また、出火住戸の戸外表示器５にあっては、検出回路１９で火災信号Ｅ８を検出している状態で、地区音響制御信号Ｅ６を受けることでリレーＪが作動し、このリレーＪの作動でリレー接点ｊ１，ｊ２が切り換わり、スピーカ２９が音声警報信号線９に接続され、音声警報信号Ｅ７の入力が可能となる。
【０００９】
住棟用受信機１では、地区音響制御信号Ｅ６の出力と共に音声合成部３０が起動して生成された音声信号がアンプ３１で増幅された後、音声警報信号線９に音声警報信号Ｅ７として出力される。これにより、住戸での火災の場合、出火階及びその直上階の自火報総合盤２のスピーカ７、共用部スピーカ６、出火階及びその直上階の出火住戸以外の各住戸の住戸用受信機４のスピーカ２６及び出火住戸の戸外表示器５のスピーカ２９に住棟用受信機１からの音声警報信号Ｅ７が供給され、例えば「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。」などの出火場所を含む音声メッセージの警報出力が行われる。
【００１０】
なお、出火住戸の住戸用受信機４にあっては、自住戸での火災であるにも関わらず出火場所を含む音声メッセージをスピーカ２６から出力するのは矛盾することにもなるので、住戸用受信機４では、作動信号Ｅ１を受信することで受信リレーＲが作動するが、その際、地区音響制御信号線８に設けられるリレー接点ｒが開くことで地区音響制御信号Ｅ６の入力を禁止させている。また、出火住戸以外の全ての戸外表示器５にあっては、一斉に音声メッセージが出力されると音声メッセージが逆に聞き取り難く、且つどの住戸が火災なのかが外部から判かり難いことから音声メッセージの出力を禁止している。
【００１１】
【発明が解決しようとする課題】
ところで、近年消防法の規格改正があり、共同住宅用の自動火災報知設備において、居住者が留守の場合を考慮して、住戸外からでも火災感知器の遠隔作動試験ができることが規定された。
図５に示したような従来の共同住宅用の火災報知システムにおいて、住戸外から火災感知器の遠隔作動試験をする構成を適用しようとした場合、住戸外に設置する中継器３に、火災感知器１０を遠隔作動試験するための外部試験器を接続することで、感知器回線１１ａ，１１ｂを外部試験器側に切り換えて、その状態で火災感知器１０に試験信号を送出して火災感知器１０を一個ずつ作動試験させて、外部試験器で試験の結果を確認する方式が考えられる。また、この火災感知器１０の遠隔作動試験の際に、火災感知器１０の作動試験だけでなく、住棟用受信機１との連動試験を含む住戸全体の総合的な点検（住戸点検）をすることが望まれる。
【００１２】
しかしながら、図５に示したような従来の共同住宅用の火災報知システムでこのような住戸点検を適用した場合には、外部試験器による火災感知器１０の遠隔作動試験により、住棟用受信機１が中継器３より火災信号Ｅ４を受信すると、地区音響制御信号Ｅ６及び音声警報信号Ｅ７が出火階とその直上階の住戸に対し送られるため、出火階及び直上階の自火報総合盤２のスピーカ７、共用部スピーカ６、出火階及びその直上階の出火住戸即ち点検住戸以外の住戸用受信機４のスピーカ２６、点検住戸の戸外表示器５のスピーカ２９から、住棟用受信機１より出力された音声警報信号が出力されてしまうことになり、在宅者に無用な動揺をおこさせる問題があった。また、このシステムにあっては、点検住戸の住戸用受信機４のスピーカ２６からは音声警報信号Ｅ７が出力されないようになっているため、外部試験器を接続して点検を行っている住戸の住戸用受信機４に確実に地区音響制御信号Ｅ６及び音声警報信号Ｅ７が届いているのか点検時に確認できないという問題点があった。
【００１３】
本発明は上述した事情に鑑みてなされたもので、在宅者に無用な動揺をおこさせることなく住戸点検を行うことができ、また地区音響制御信号線と音声警報信号線の点検も含めた総合的な点検を同時に行うことが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している。
【００１４】
【課題を解決するための手段】
上記目的達成のため、請求項１記載の発明による共同住宅用火災報知システムは、各住戸毎に、火災感知器と、該火災感知器を感知器回線を介して接続すると共に該火災感知器の遠隔作動試験を含む住戸点検時に外部試験器が接続される中継器と、前記中継器が前記火災感知器の発報を検出した場合に出力する作動信号を受信して自己のスピーカにより音声警報を行うと共に前記作動信号を受けて所定の遅延時間後に火災確定信号を中継器に出力する住戸用受信機と、該住戸用受信機側から送られてくる音声警報信号を出力するスピーカを備えた戸外表示器とを設け、管理人室等の中央に、前記中継器が前記住戸用受信機より火災確定信号を受けた場合に出力する火災信号を受信した際に出火住戸とその近隣住戸に対して地区音響制御信号及び音声警報信号を出力する住棟用受信機、及び共用部に配置され、前記住棟用受信機より出力される音声警報信号を各住戸に送る音声警報信号線に接続される共用部スピーカを設けた共同住宅用火災報知システムにあって、
前記外部試験器に、住戸点検時、試験開始操作を行った場合に前記中継器を介して前記住戸用受信機に試験中信号を出力し、前記火災感知器の試験が正常に終了した場合に前記中継器に試験正常終了信号を出力する回路部を設け、
前記中継器に、前記外部試験器より試験中信号を受けた場合に前記感知器回線を住戸用受信機側から外部試験器側に切換え接続して外部試験器からの前記火災感知器の遠隔作動試験を可能とし、試験正常終了信号を受けた場合に前記住戸用受信機に作動信号を出力し、該作動信号を出力した後前記住戸用受信機より火災確定信号を受けた場合に前記住棟用受信機に火災信号を出力する回路部を設け、前記住戸用受信機に、前記中継器経由で前記外部試験器からの試験中信号を受けることで、自己のスピーカによる音声警報及び前記遅延時間による遅延動作を禁止して、該試験中信号を受けている状態で前記中継器より作動信号を受けた場合に、音声警報を行わず、直ちに前記中継器に火災確定信号を出力するようにし、また、該試験中信号を受けている状態で、前記中継器より作動信号を受信し、且つ、前記住棟用受信機より出力される地区音響制御信号及び音声警報信号を検出することで、自己の音源で生成した音声警報信号を前記戸外表示器のスピーカから出力させる回路部を設け、前記住棟用受信機は、人間には聞こえない又は聞こえ難い疑似音声信号を出力する点検モードを備え、住戸点検時、該点検モードを設定することで前記音声警報信号に代えて該疑似音声信号を出力することにより前記共用スピーカから疑似音声を放音させることを特徴とする。
【００１５】
この構成によれば、外部試験器による火災感知器の遠隔作動試験時に、住棟用受信機が中継器より出力された火災信号を受信すると、地区音響制御信号及び音声警報信号を出火住戸とその近隣の住戸に対して送るが、出火住戸即ち点検住戸の住戸用受信機の回路部は、中継器より既に試験中信号を受けている状態で試験正常終了による作動信号とを受けているので、住棟用受信機より送られてくる地区音響制御信号及び音声警報信号を検出することで、自己の音源で戸外表示器のスピーカからのみ警報を出力させる。また、住棟用受信機を点検モードに設定すると、通常の音声警報信号に代わって人間には聞こえない又は聞こえ難い疑似音声信号が出力される。
【００１６】
したがって、外部試験器による火災感知器の遠隔作動試験時に、点検住戸の火災感知器が正常であれば、その点検住戸の戸外表示器からのみ警報が出力されるので、在宅者に無用な動揺をおこさせることがなく、点検者に住戸点検の結果を報知することができる。
また、住戸用受信機が地区音響制御信号と音声警報信号を検出することで、点検住戸の戸外表示器のスピーカから警報を出力させることから、地区音響制御信号線及び音声警報信号線の点検も含めた総合的なシステム試験も同時に行うことができる。
また、通常の音声警報信号に代わって人間には聞こえない又は聞こえ難い疑似音声信号が出力されるので、音声警報信号を各住戸に送るための音声警報信号線に接続される共用部スピーカの鳴動は聞こえない又は聞こえ難いので、在宅者や廊下等の共用部にいる人に無用な動揺をおこさせることがない。
請求項２記載の発明による共同住宅用火災報知システムは、前記疑似音声信号は、周波数が１０〜１００Ｈｚ程度の低周波又は２０ｋＨｚ程度の高周波であることを特徴とする。
【００１７】
請求項３記載の発明による共同住宅用火災報知システムは、前記住棟用受信機は、住戸点検時に設定する前記中継器から送られる火災信号を保持しない試験復旧モードを備え、住戸点検時に該試験復旧モードが設定されている状態では、前記中継器より火災信号が出力されている時間程度だけ地区音響制御信号及び音声警報信号を出力し、前記外部試験器の回路部は、前記住戸用受信機が地区音響制御信号及び音声警報信号の夫々を検出する第１の検出時間より短い時間で試験正常終了信号を出力し、前記中継器の回路部は、前記外部試験器より試験正常終了信号を受けた場合に、試験正常終了信号の出力時間程度だけ前記住戸用受信機に作動信号を出力し、該作動信号を出力した後前記住戸用受信機より火災確定信号を受けた場合に、該火災確定信号の出力時間程度だけ前記住棟用受信機に火災信号を出力し、前記住戸用受信機の回路部は、前記中継器より試験中信号を受けることで、地区音響制御信号及び音声警報信号の夫々を検出する第１の検出時間を前記外部試験器より出力される試験正常終了信号の出力時間より短い第２の検出時間に変更し、該第２の検出時間への変更後、試験復旧モードが設定された前記住棟用受信機より出力される地区音響制御信号及び音声警報信号を検出することで、自己の音源で生成した音声警報信号を前記戸外表示器のスピーカから出力させることを特徴とする。
【００１８】
この構成によれば、住戸用受信機の回路部は、外部試験器より試験中信号を受けることで、地区音響制御信号と音声警報信号の夫々を検出するための第１の検出時間を、火災感知器の試験が正常に終わった時に外部試験器より出力される試験正常終了信号の出力時間より短い第２の検出時間に変更するので、試験復旧モードが設定された住棟用受信機より試験正常終了信号の出力時間と略同じ時間だけ地区音響制御信号及び音声警報信号が出力されても、これらを検出することができる。
したがって、点検住戸の住戸用受信機の回路部は、地区音響制御信号及び音声警報信号を検出できるため、自己の音源で戸外表示器のスピーカからのみ警報を出力する。
【００１９】
請求項４記載の発明による共同住宅用火災報知システムは、点検住戸近隣の住戸の前記住戸用受信機の回路部は、前記中継器経由で前記外部試験器からの試験中信号を受けておらず第１の検出時間であることから、住戸点検時試験復旧モードが設定された前記住棟用受信機より出力される地区音響制御信号及び音声警報信号を検出できないことを特徴とする。
この構成によれば、住戸用受信機の回路部は、外部試験器より試験中信号を受けていなければ、地区音響制御信号と音声警報信号の夫々を検出するための第１の検出時間が通常時のまま即ち試験正常終了信号の出力時間より長くなっているので、住棟用受信機より地区音響制御信号及び音声警報信号が出力されてもこれらを検出することができない。
したがって、点検住戸以外の近隣住戸の住戸用受信機の回路部は、地区音響制御信号及び音声警報信号を検出できないため、自己のスピーカからも戸外表示器のスピーカからも警報を出力しない。
【００２２】
請求項５記載の発明による共同住宅用火災報知システムは、管理人室等の中央に設けられる、火災信号を受信することで該火災信号を保持し、保持している間のみ出火住戸とその近隣住戸に対して地区音響制御信号及び音声警報信号を出力する住棟用受信機と、各住戸毎に設けられる、火災感知器と、該火災感知器を感知器回線を介して接続し、火災確定信号を受けた場合に前記住棟用受信機に火災信号を出力する中継器と、前記中継器が前記火災感知器の発報を検出した場合に出力する作動信号を受信した場合には、自己のスピーカにより音声警報を行うと共に前記作動信号を受けて所定の遅延時間後に火災確定信号を中継器に出力し、また前記中継器より出力される作動信号を受信していない状態で前記住棟用受信機より出力される地区音響制御信号及び音声警報信号の夫々を予め設定された第１の検出時間を超えることで検出した場合には、前記住棟用受信機より出力される音声警報信号を自己のスピーカから出力する住戸用受信機と、該住戸用受信機側から送られてくる音声警報信号を出力するスピーカを備えた戸外表示器とを備えた共同用住宅用火災報知システムにあって、前記火災感知器の遠隔作動試験を含む住戸点検時に前記中継器に接続し、試験開始操作を行った場合に前記中継器を介して前記住戸用受信機に試験中信号を出力し、前記火災感知器の試験が正常に終了した場合に前記中継器に試験正常終了信号を前記住戸用受信機が地区音響制御信号及び音声警報信号の夫々を検出する第１の検出時間より短い時間で出力する回路部を設けた外部試験器を有し、前記中継器に、前記外部試験器より試験中信号を受けた場合に前記感知器回線を住戸用受信機側から外部試験器側に切換え接続して外部試験器からの前記火災感知器の遠隔作動試験を可能とし、試験正常終了信号を受けた場合に、試験正常終了信号の出力時間程度だけ前記住戸用受信機に作動信号を出力し、該作動信号を出力した後前記住戸用受信機より火災確定信号を受けた場合に、該火災確定信号の出力時間程度だけ前記住棟用受信機に火災信号を出力する回路部を設け、前記住棟用受信機は、前記中継器から送られる火災信号を保持しない試験復旧モードと人間には聞こえない又は聞こえ難い疑似音声信号を出力する点検モードを備え、住戸点検時に該試験復旧モードと点検モードが設定されている状態では、前記中継器より火災信号が出力されている時間程度だけ地区音響制御信号及び音声警報信号に代えて疑似音声信号を出力し、前記住戸用受信機に、前記中継器経由で前記外部試験器からの試験中信号を受けることで、地区音響制御信号及び音声警報信号の夫々を検出する第１の検出時間を前記外部試験器より出力される試験正常終了信号の出力時間より短い第２の検出時間に変更、自己のスピーカによる音声警報及び前記遅延時間による遅延動作を禁止して、該試験中信号を受けている状態で前記中継器より作動信号を受けた場合に、音声警報を行わず、直ちに前記中継器に火災確定信号を作動信号の出力時間程度だけ出力するようにし、前記第２の検出時間への変更後、試験復旧モード及び点検モードが設定された前記住棟用受信機より出力される地区音響制御信号及び疑似音声信号を検出することで、自己の音源で生成した音声警報信号を前記戸外表示器のスピーカから出力させる回路部を設けたことを特徴とする。
【００２３】
この構成によれば、
外部試験器による火災感知器の遠隔作動試験時に、点検住戸以外の近隣住戸では、住戸用受信機のスピーカ及び戸外表示器のスピーカのいずれからも警報が出力されず、点検住戸の戸外表示器のスピーカからのみ警報が出力されるので、在宅者に無用な動揺をおこさせることがなく、点検者に住戸点検の結果を報知することができる。また、点検住戸の住戸用受信機が地区音響制御信号と音声警報信号を検出することで、点検住戸の戸外表示器のスピーカから警報を出力させることから、地区音響制御信号線及び音声警報信号線の点検も含めた総合的なシステム試験も同時に行うことができる。また、火災感知器の遠隔作動試験時に、住棟用受信機を点検モードに設定することで、住棟用受信機からは通常の音声警報信号に代わって人間には聞こえない又は聞こえ難い疑似音声信号を出力するので、音声警報信号線に共用部スピーカを接続していても、該共用部スピーカの鳴動は聞こえない又は聞こえ難いので、在宅者や廊下等の共用部にいる人に無用な動揺をおこさせることがない。
【００２４】
【発明の実施の形態】
以下、本発明の実施の形態を図面例と共に説明する。
図１は本発明に係る共同住宅用火災報知システムの実施の形態の構成を示すブロック図、図２はその詳細な構成を示すブロック図、図３は中継器と住戸用受信機と戸外表示器の更に詳細な構成を示すブロック図、図４は実施の形態の共同住宅用火災報知システムの動作の要点を示す図である。なお、図１〜図３において、前述した図５と共通する部分には同一の符号を付けている。
この実施の形態の共同住宅用火災報知システムは、外部試験器４０による火災感知器１０の遠隔作動試験（住戸点検）時に中継器５０より火災信号Ｅ４が出力され、これによって住棟用受信機６０より出力される地区音響制御信号と音声警報信号を検出した場合、点検住戸の戸外表示器８０のみ住戸用受信機７０の制御によって表示灯２０を点滅させると共に住戸用受信機７０の音源によってスピーカ２９から警報を出力させるものである。
【００２５】
住戸用受信機７０は、中継器５０に外部試験器４０が接続されて、中継器５０経由で試験中信号Ｅ９が出力されると、試験中と判断し、この試験中信号を受けている状態で、火災感知器１０の遠隔作動試験が正常に終わることにより、外部試験器４０から出力される試験正常終了信号を受けることで中継器５０から出力される作動信号Ｅ１を受け、火災確定信号Ｅ３を出力後、住棟用受信機６０より地区音響制御信号と音声警報信号とが送られてくることを検出した場合、戸外表示器８０の表示灯２０を点滅駆動させると共に自己の音源で戸外表示器８０のスピーカ２９を鳴動させる。また、この外部試験器４０による火災感知器１０の遠隔作動試験（住戸点検）時に、住棟用受信機６０に点検モードを設定しておくことで、住棟用受信機６０より人間には聞こえない又は聞こえ難い音声信号（以下疑似音声信号という）を出力させる。この疑似音声信号としては、例えば１０〜１００Ｈｚの低周波又は２０ｋＨｚ程度の高周波で、波形は正弦波、三角波、矩形波等が好適である。この疑似音声信号を用いることで、共用部スピーカ６からは人間には聞こえない又は聞こえ難い音声が出力される。
【００２６】
したがって、外部試験器４０による火災感知器１０の遠隔作動試験（住戸点検）時には、点検住戸の戸外表示器８０のスピーカ２９からのみ警報が出力されるので、在宅者に無用な動揺をおこさせることがなく、点検者に住戸点検の結果を報知することができる。また、点検住戸の住戸用受信機７０が地区音響制御信号と音声警報信号を検出することにより、点検住戸の戸外表示器８０のスピーカ２９から警報を出力させることから、地区音響制御信号線ＥＡと音声警報信号線ＫＰ−ＫＰＣの点検も含めて、システムの総合的な点検を行うことができる（即ち火災感知器１０、中継器５０、住棟用受信機６０、住戸用受信機７０、戸外表示器８０のうちの一つでも異常であれば戸外表示器８０のスピーカ２９は鳴動しない）。また、この際、音声警報信号線ＫＰ−ＫＰCに直接共用部スピーカ６が接続されてあって、住棟用受信機６０に点検モードを設定しておくことにより、共用部スピーカ６からは疑似音声信号が出力されるので、共用部スピーカ６の鳴動は聞こえない又は聞こえ難いため、在宅者や廊下等の共用部にいる人に無用な動揺をおこさせることがない。
なお、この実施の形態の共同住宅用火災報知システムでは、図５に示した自火報総合盤２を有していないが、自火報総合盤２を設けた場合でもそのスピーカ７（図５参照）からは擬似音声信号が出力されることは言うまでもない。
【００２７】
以下、図２及び図３を参照して共同住宅用火災報知システムの構成及び動作について説明する。
（Ｉ）共同住宅用火災報知システムの構成
（ａ）中継器５０の構成
図２において、中継器５０は、遠隔作動試験機能付き火災感知器１０の発報を検出する発報検出回路９０と、この発報検出回路９０と火災感知器１０との間に介挿され、外部試験器４０による火災感知器１０の遠隔作動試験（住戸点検）時に、感知器回線１１ａ，１１ｂを外部試験器４０側へ切り換える接点ｓt1と、閉状態とすることで住戸用受信機７０へ試験中信号Ｅ９を出力する接点ｓt2と、住戸用受信機７０からの火災確定信号Ｅ３を検出する火災確定検出回路９３と、火災感知器１０の発報検出時及び外部試験器４０から所定の短い時間例えば２秒間出力される試験正常終了を示すｏｋ信号の検出時に閉状態とする接点９４と、この接点９４に直列に介挿される発報抵抗９５と、発報検出かつ火災確定信号検出時に閉状態とする接点９６と、この接点９６に直列に介挿される住棟発報抵抗９７と、接点９６と住棟発報抵抗９７の直列回路に並列接続される住棟終端抵抗９８と、発報検出回路９０、火災確定検出回路９３及び外部試験器４０からの試験正常終了を示すｏｋ信号（試験正常終了信号）の監視や接点９４，９６の開閉制御等中継器全体の監視制御を行うＣＰＵ回路９９と、２４Ｖ脈流の地区音響制御信号を平滑して１２Ｖの定電圧を生成しＦＶ信号として出力するＦＶ信号出力回路１００と、住棟用受信機６０より供給される２４Ｖを１４Ｖと３．２Ｖの定電圧に降圧する定電圧回路１０１と、外部試験器４０からの試験中信号Ｅ９により作動する接点ｓt1、ｓt2を備えるリレーＳＴとを備えて構成されている。尚、ＦＶ信号は、住棟用受信機６０から出力される２４Ｖ脈流の地区音響制御信号を平滑して１２Ｖレベルに変換しただけのものであり、都合上ＦＶ信号としているが、地区音響制御信号である。
【００２８】
（ｂ）住棟用受信機６０の構成
住棟用受信機６０は、２４Ｖ定電圧を生成し、中継器５０、火災感知器１０へ供給する２４Ｖ定電圧回路１１０と、中継器５０からの火災信号Ｅ４を受信し、対応する制御を行う火災受信制御回路１１１と、地区音響鳴動時に閉状態となる接点１１２と、地区音響を鳴動させる地区に対応して閉状態となる複数個の接点１１３1，１１３2，… ，１１３n（この図では接点１１３1のみ示している）と、火災受信制御回路１１１からの移報信号に基づいて音声警報信号を出力する音声警報ユニット１１４と、点検時に操作設定する試験復旧スイッチ１１５ａなど各種操作を行うためのスイッチを備える操作部１１５と、音声警報ユニット１１４に点検モードを設定するための点検モードスイッチ１１６とを備えて構成されている。
【００２９】
住戸点検時に、試験復旧スイッチ１１５ａをオンすることで、火災受信制御回路１１１は火災信号Ｅ４を保持しない試験復旧モードを設定し、火災信号Ｅ４を受信している間のみ対応する制御出力等を行う。また、点検モードスイッチ１１６をオンすると、音声警報ユニット１１４は点検モードに移行し、火災受信制御回路１１１にて火災信号Ｅ４が受信された時に出力される移報信号に基づいて音声警報ユニット１１４は疑似音声信号を出力する。複数個の区分鳴動用の接点１１３1，１１３2，… ，１１３nは、共同住宅の各階に対応して設けられており、それぞれから各階に向けて地区音響制御信号線ＥＡ1，ＥＡ2，…，ＥＡnが引き出されて各階の中継器５０に接続されている。なお、この場合、各階を一区分とするものであるが、各階を例えば二区分とすると、各階毎に２個の接点１１３を対応させることになる。
【００３０】
図２に示す接点１１３1からは、１階用の地区音響制御信号線ＥＡ1が引き出されており、その地区音響制御信号線ＥＡ1に１階の各住戸に設けられる各中継器５０が接続されている。因みに接点１１３2からは２階用の地区音響制御信号線ＥＡ2が引き出されており、その地区音響制御信号線ＥＡ2に２階の各住戸に設けられる各中継器５０が接続されている。そして、例えば１階で火災が発生した時には、接点１１２及び出火階である１階とその直上階である２階に対応する接点１１３1，１１３2が閉状態となるように制御され、１階と２階の各住戸の中継器５０に地区音響制御信号線ＥＡ1，ＥＡ2を介して地区音響制御信号が送られる。音声警報ユニット１１４からも地区音響制御信号線ＥＡ1，ＥＡ2，… ，ＥＡnと同様に各階向けて音声警報信号線ＫＰ1−ＫＰＣ1，ＫＰ2−ＫＰＣ2，… ，ＫＰn−ＫＰＣnが引き出されて各階の中継器５０に接続されている。図２に示す音声警報信号線ＫＰ1−ＫＰＣ1には１階の各戸に設けられる各中継器５０が接続されている。因みにＫＰ2−ＫＰＣ2には２階の各住戸に設けられる各中継器５０が接続されている。そして、例えば１階で火災が発生した時には１階と２階の各住戸の中継器５０に音声警報信号が送られる。
【００３１】
（ｃ）住戸用受信機７０の構成
住戸用受信機７０は、火災確定時に開状態にして火災確定信号Ｅ３を中継器５０に送るための接点１２０と、中継器５０からの作動信号Ｅ１を受信する火災受信部１２１と、中継器５０を介して外部試験器４０から出力される試験中信号Ｅ９を検出する試験中信号検出部１２２と、中継器５０からの地区音響制御信号となるＦＶ信号を検出するＦＶ信号検出部１２３と、音声警報信号を出力する音声信号出力回路１２５と、住棟用受信機６０からの音声警報信号を検出する音声信号検出回路１２６と、音声信号出力回路１２５からの音声警報信号と住棟用受信機６０からの音声警報信号との切り換えを行う接点１２７と、スピーカ２６と、戸外表示器２０の表示灯２０を点滅させる表示灯制御回路１２８（図３参照）とを備えて構成されている。上記火災受信部１２１、試験中信号検出部１２２及びＦＶ信号検出部１２３は、図３に示すようにマイコン１３０によって実現されている。また、この住戸用受信機７０では、ＦＶ信号検出部１２３と音声信号検出回路１２６の検出時間が通常時と住戸点検時とで変更できるようになっている。ＦＶ信号検出部１２３では、通常時に例えば４秒（第１の検出時間）に設定され、住戸点検時に例えば０．１秒（第２の検出時間）に設定される。音声信号検出回路１２６では、通常時に例えば３秒（第１の検出時間）に設定され、住戸点検時に例えば０．１秒（第２の検出時間）に設定される。
【００３２】
ここで、図３を参照して住戸用受信機７０の構成の詳細について説明する。
住戸用受信機７０内部のＦＶ信号経路上に直列に接点１３１が介挿されており、またこの接点１３１より出力側にはリレーＲＹ１３２が並列に介挿されている。またリレーＲＹ１３２より出力側には戸外表示器８０の表示灯２０を駆動する表示灯制御回路１２８が設けられている。リレーＲＹ１３１は、通電時、住戸用受信機７０に電源が供給されることで作動し、停電等で電源が供給されなくなると不作動となる。したがって、その接点１３１はリレーＲＹ１３１の作動状態でａ点側にあり、ＦＶ信号経路を開状態、不作動状態でｂ点側に切り換わり、ＦＶ信号経路を閉状態とする。
【００３３】
一方、住戸用受信機７０内部の音声警報信号経路上には、直列にかつ信号線側と接地線側の双方に切替式のリレーＲＹ１３２の接点１３２1，１３２2が介挿されており、これら接点１３２1，１３２2は、リレーＲＹ１３２が不作動の間、
即ち通電時、ｂ点側にあり、戸外表示器８０のスピーカ２９を住戸用受信機７０の音声信号出力回路１２５に接続し、リレーＲＹ１３１の不作動によりその接点１３１がｂ点側に切り換わるとＦＶ信号によりリレーＲＹ１３２が作動すると、ａ点側に切り換わり、戸外表示器８０のスピーカ２９を音声警報信号線ＫＰ−ＫＰＣに接続する。住戸用受信機７０内のスピーカ２６は、切換え式のリレーＲＹ１２７の接点１２７1，１２７2によって音声信号出力回路１２５又は音声警報信号線ＫＰ−ＫＰＣのいずれか一方に接続される。
【００３４】
リレーＲＹ１２７は、通常時住戸用受信機７０に電源が供給されることで作動するため、その接点１２７1，１２７2はａ点側にあり、スピーカ２６を音声信号出力回路１２５に接続する。音声信号出力回路１２５は、マイコン１３０からの起動信号、音声警報信号を出力するスピーカ２６、２９を選択する出力ポート選択信号を受けることで、起動して所定のメッセージを合成して、選択された出力ポート、即ちスピーカへ出力する。音声信号検出回路１２６は音声警報信号線ＫＰ−ＫＰＣ上の音声信号の検出を行うもので、音声信号を検出するとその旨をマイコン１３０に通知する。表示灯制御回路１２８は、通常時は戸外表示器８０の表示灯２０を点灯し、実際に火災が発生した時や外部試験器４０による戸外点検時にマイコン１３０からの指令によって点滅させる。
【００３５】
（Ｉ）共同住宅用火災報知システムの動作
以下、本実施の形態の共同住宅用火災報知システムの動作について説明する。なお、図４は本実施の形態の共同住宅用火災報知システムの動作の要点を示す図である。
（イ）火災時
（ａ）出火住戸での動作
自住戸で火災が発生して火災感知器１０が発報すると、その発報が中継器５０の発報検出回路９０で検出され、ＣＰＵ回路９９に通知される。ＣＰＵ回路９９は火災感知器１０が発報した通知を受けると、接点９４を閉じて作動信号Ｅ１を住戸用受信機７０に出力する。中継器５０より出力された作動信号Ｅ１を住戸用受信機７０のマイコン１３０の火災受信部１２１が受けると、表示灯制御回路１２８を制御させて戸外表示器８０の表示灯２０を点滅させると共に、音声信号出力回路１２５を動作させて住戸用受信機７０のスピーカ２６から火災感知器作動メッセージを出力させる。
【００３６】
また、火災受信部１２１は作動信号Ｅ１を受けることで、火災確認をするための時間例えば２〜５分が設定された遅延タイマ（図示略）を起動させる。そして、この遅延タイマの起動後の２〜５分の間に復旧スイッチ（図示略）が操作されたか否かの判定が行われ、この間に復旧スイッチが操作されなければ、遅延タイマはタイムアップされ、接点１２０を開いて中継器５０に火災確定信号Ｅ３を出力する。また同時に音声信号出力回路１２５を動作させて住戸用受信機７０のスピーカ２６から火災作動メッセージを出力させると共に、戸外表示器８０のスピーカ２９からも火災作動メッセージを出力させる。なお、この場合、住戸用受信機７０のリレーＲＹ１２７は電源投入時に作動するので、電源投入時にその接点１２７1，１２７2はａ点側に切り換わり、スピーカ２６が音声信号出力回路１２５に接続された状態になる。また、住戸用受信機７０のリレーＲＹ１３１も電源投入時に作動するため、その接点１３１はａ点側に切り換わってＦＶ信号経路を開いた状態になる。
【００３７】
住戸用受信機７０より出力された火災確定信号Ｅ３を中継器５０の火災確定検出回路９３が受けると、その旨をＣＰＵ回路９９に通知する。ＣＰＵ回路９９は発報検出回路９０から火災感知器１０の発報通知を受けている状態で火災確定信号Ｅ３を受信した旨の通知を受けると、接点９６を閉じて火災信号Ｅ４を住棟用受信機６０に出力する。そして、中継器５０からの火災信号Ｅ４を住棟用受信機６０の火災受信制御回路１１１が検出すると、火災信号を保持し、更に地区音響鳴動用の接点１１２を閉じると共に、例えば出火階である１階とその直上階である２階に対応する接点１１３1，１１３2を閉じて地区音響制御信号線ＥＡ1，ＥＡ2に地区音響制御信号を出力する。また火災受信制御回路１１１は音声警報ユニット１１４に火災代表信号、火災地区信号、地区音響鳴動代表信号で構成される移報信号を出力する。
【００３８】
音声警報ユニット１１４は、この移報信号を受けることで、出火階である１階とその直上階である２階に対応する音声警報信号線ＫＰ1−ＫＰＣ1，ＫＰ2−ＫＰＣ2に音声警報信号を出力する。そして、住棟用受信機６０より出力された地区音響制御信号（２４Ｖの脈流）は中継器５０のＦＶ信号出力回路１００でＦＶ信号（１２Ｖの直流）に変換されて住戸用受信機７０に出力される。住戸用受信機７０に出力された地区音響制御信号であるＦＶ信号は、住戸用受信機７０のマイコン１３０のＦＶ信号検出部１２３で検出される。また、音声警報信号は、音声検出回路２６で検出される。この際、マイコン１３０は既に作動信号Ｅ１を受けているので、ＦＶ信号及び音声警報信号を検出しても何もしない。すなわち、住戸用受信機７０のスピーカ２６及び戸外表示器８０のスピーカ２９から継続して火災作動メッセージを出力すると共に、戸外表示器８０の表示灯２０を継続して点滅させる。
【００３９】
（ｂ）近隣住戸（出火住戸以外の出火階住戸及び直上階住戸）での動作
上述したように、出火住戸の住戸用受信機７０では、マイコン１３０の火災受信部１２１は中継器５０より作動信号Ｅ１を受けているので、音声警報信号及びＦＶ信号が送られてきても何もしない。これに対して、近隣住戸の住戸用受信機７０では、マイコン１３０の火災受信部１２１は中継器５０より作動信号Ｅ１を受けないので、音声警報信号及び地区音響制御信号が変換されたＦＶ信号が送られてきて、そのうちの音声警報信号が音声検出回路１２６で検出され、ＦＶ信号がＦＶ信号検出部１２３で検出されると、リレーＲＹ１２７を不作動にしてその接点１２７1，１２７2をｂ点側に切り換え、スピーカ２６を音声警報信号線ＫＰ−ＫＰＣに接続する。これにより、住棟用受信機６０から出力された音声警報信号が近隣住戸の住戸用受信機７０のスピーカ２６から出力される。この際、出火住戸が１階の住戸であれば、１階に布設された音声警報信号線ＫＰ1−ＫＰＣ1と２階に布設された音声警報信号線ＫＰ2−ＫＰＣ2に音声警報信号が出力され、１階の出火住戸以外の各住戸と２階の各住戸の住戸用受信機７０のスピーカ２６から音声警報が出力される。またこの際、マイコン１３０は音声信号出力回路１２５を動作させないので、戸外表示器８０のスピーカ２９からは警報は出力されない。尚、通常時にあっては、ＦＶ信号検出部１２３及び音声信号検出回路１２６の検出時間は第１の検出時間、例えば４秒及び３秒が設定されているが、住棟用受信機６０は火災信号を自己保持し、第１の検出時間よりも長い時間、地区音響制御信号及び音声警報信号を出力するため、両信号は検出される。
【００４０】
（ロ）住戸点検時（外部試験器４０による火災感知器１０の遠隔作動試験を含めたシステム的な総合点検）
点検者は、住戸点検する前に予め以下の設定を行う。
▲１▼住棟用受信機６０の点検モードスイッチ１１６をオン操作して音声警報ユニット１１４を点検モードに設定する。即ち、疑似音声信号を出力するようにする。
▲２▼住棟用受信機６０の試験復旧スイッチ１１５ａをオン操作して火災信号Ｅ４を保持しない試験復旧モードを設定する。即ち、住棟用受信機６０に火災信号Ｅ４が出力されたときのみ地区音響鳴動用の接点１１２と区分鳴動用の接点１１３1，１１３2，… ，１１３nの制御及び音声警報ユニット１１４の制御を行うようにする。
【００４１】
（ａ）点検住戸での動作
上記設定を行った後、外部試験器４０を中継器５０に接続して試験開始操作を行うと、外部試験器４０は、中継器５０に試験中信号Ｅ９を出力して中継器５０のリレーＳＴを作動させる。中継器５０のリレーＳＴが作動すると、その接点ｓt1が外部試験器４０側に切り換わり、感知器回線１１ａ，１１ｂが外部試験器４０に接続され、外部試験器４０からの火災感知器１０の遠隔作動試験を可能とする。またリレーＳＴが作動することで接点ｓt2が閉じて試験中信号Ｅ９が住戸用受信機７０に出力される。試験中信号Ｅ９は住戸用受信機７０のマイコン１３０の試験中信号検出部１２２にて検出され、マイコン１３０は試験中信号Ｅ９を検出すると、▲１▼スピーカ２６での警報禁止、▲２▼試験を早く終わらせるために２〜５分の遅延タイマの起動禁止、▲３▼ＦＶ信号検出部１２３のＦＶ信号検出時間と音声信号検出回路１２６の音声警報信号検出時間の短縮を設定する。ＦＶ信号検出時間と音声警報信号検出時間とは、ＦＶ信号、音声警報信号が送られてきたことを確定するための時間であり、この時間を超えて地区音響制御信号であるＦＶ信号、音声警報信号が送られてくると、ＦＶ信号検出部１２３はＦＶ信号を検出し、音声信号検出回路１２６は音声警報信号を検出する。この場合、ＦＶ信号検出時間は通常時には例えば４秒（第１の検出時間）に設定され、住戸点検時には例えば０．１秒（第２の検出時間）に短縮して設定される。また音声警報信号検出時間は通常時には例えば３秒（第１の検出時間）に設定され、住戸点検時には例えば０．１秒（第２の検出時間）に短縮して設定される。
【００４２】
外部試験器４０は、中継器５０に試験中信号Ｅ９を出力した後、感知器回線１１ａ，１１ｂを介して火災感知器１０に試験信号を出力し、その際の疑似発報状態から試験状態を確認する。この場合、各火災感知器１０に対してアドレス指定を行って一つずつ試験信号を出力して全てについて試験状態を確認する。そして、全ての火災感知器１０について試験が正常に終了したと判断すると、外部試験器４０は中継器５０に試験正常終了を示すｏｋ信号を送出する。ｏｋ信号は例えば２秒間出力される。ｏｋ信号の出力時間は、住戸用受信機７０が作動信号Ｅ１を自己保持しない時間等を考慮して設定される。中継器５０のＣＰＵ回路９９がｏｋ信号を取り込むと、その時間だけ、即ち２秒間程度だけ接点９４を閉じて住戸用受信機７０に作動信号Ｅ１を出力する。そして、この作動信号Ｅ１を住戸用受信機７０の火災受信部１２１が取り込むとマイコン１３０は、直ちに接点１２０を開いて火災確定信号Ｅ３を中継器５０に出力する。火災確定信号Ｅ３は、作動信号Ｅ１を受信している時間だけ、即ち、２秒間程度だけ出力される。火災確定信号Ｅ３を中継器５０の火災確定検出回路９３が検出すると、その旨をＣＰＵ回路９９に通知する。ＣＰＵ回路９９は火災確定信号Ｅ３が検出された旨の通知を受けると、接点９６を閉じて住棟用受信機６０に火災信号Ｅ４を送出する。火災信号Ｅ４は、火災確定信号Ｅ３の出力時間２秒間程度だけ、即ち、ｏｋ信号の送出時間と略同じ時間送出される。
【００４３】
中継器５０より送出された火災信号Ｅ４を住棟用受信機６０の火災受信制御回路１１１が取り込むと、地区音響鳴動用の代表接点１１２を閉じると共に、例えば出火階である１階とその直上階である２階に対応する接点１１３1，１１３2を閉じて地区音響制御信号線ＥＡ1，ＥＡ2に地区音響制御信号を出力する。また火災受信制御回路１１１は音声警報ユニット１１４に火災地区信号等の移報信号を出力する。音声警報ユニット１１４は、この移報信号を受けることで、出火階である１階とその直上階である２階に対応する音声警報信号線ＫＰ1−ＫＰＣ1，ＫＰ2−ＫＰＣ2に疑似音声信号を出力する。この際、住棟用受信機６０は、試験復旧モードを設定していることから、火災信号Ｅ４が送出される時間例えば２秒間程度だけ地区音響制御信号及び疑似音声信号を出力することになる。
【００４４】
住棟用受信機６０より出力された地区音響制御信号即ち２４Ｖの脈流は、中継器５０のＦＶ信号出力回路１００でＦＶ信号即ち１２Ｖ直流に変換されて住戸用受信機７０に出力される。また住棟用受信機６０より出力された音声警報信号は中継器５０を介して住戸用受信機７０に出力される。この場合、外部試験器４０のｏｋ信号の出力期間が上述したように２秒間であるので、ＦＶ信号も略同じ２秒間出力されることになる。この際、住戸用受信機７０のマイコン１３０のＦＶ信号検出部１２３のＦＶ信号検出時間は０．１秒（第２の検出時間）に設定されていることから、ＦＶ信号検出部１２３は地区音響制御信号であるＦＶ信号を検出する。また、音声警報信号も略２秒間出力され、そして住戸用受信機７０の音声信号検出回路１２６の音声警報信号検出時間も０．１秒（第２の検出時間）に設定されていることから、音声信号検出回路１２６は疑似音声信号を検出する。
【００４５】
マイコン１３０は、試験中信号Ｅ９を受けている状態で、作動信号Ｅ１を受信し、且つＦＶ信号検出部１２３でＦＶ信号が検出され、音声信号検出回路１２６で音声警報信号が検出されると、自己の音源である音声信号出力回路１２５を起動させて戸外表示器８０のスピーカ２９のみ選択して音声警報を出力させると共に、表示灯制御回路１２８を制御して戸外表示器８０の表示灯２０を点滅させる。点検者は、スピーカ２９から出力される音声警報を聞くことで、地区音響制御信号及び音声警報信号線の点検も含めた総合的なシステム試験が正常に終了したことが確認することができる。また、この場合、疑似音声信号を出力することで、図１に示すように、共用部スピーカ６が音声警報信号線ＫＰ−ＫＰＣに接続してあっても、住戸点検時に共用部スピーカ６からは人間には聞こえない又は聞こえ難い警報が出力されるので、在宅者や廊下等の共用部にいる人に無用な迷惑をかけることなく住戸点検を行うことができる。
尚、第２の検出時間、例えば０．１秒は、地区音響制御信号及び音声警報信号の出力時間、例えば２秒より十分短いことから、システム間で両信号の出力時間が短くなるようなことがあっても確実に検出することができる。
【００４６】
（ｂ）近隣住戸（出火住戸以外の出火階住戸及び直上階住戸）での動作
近隣住戸の住戸用受信機６０のマイコン１３０は、中継器５０より試験中信号Ｅ９を受けていないので、ＦＶ信号検出部１２３のＦＶ検出時間と音声信号検出回路１２６の音声警報信号検出時間の変更を行っておらず、ＦＶ検出時間は４秒（第１の検出時間）に設定されたままであり、また音声警報信号検出時間は３秒（第１の検出時間）に設定されたままである。このため、ＦＶ信号検出部１２３は２秒間程度しか送られて来ないＦＶ信号を検出することができず、また音声信号検出回路１２６も２秒間程度しか送られて来ない音声警報信号を検出することができない。したがって、マイコン１３０は何もしない。すなわち、近隣住戸の住戸用受信機７０のスピーカ２６からも戸外表示器８０のスピーカ２９からも警報は出力されない。勿論、戸外表示器８０の表示灯２０は点滅しない。したがって、近隣住戸の在宅者に無用な迷惑をかけることがない。
【００４７】
このように、この実施の形態では、外部試験器４０による火災感知器１０の遠隔作動試験時に、中継器５０経由で試験中信号Ｅ９が出力されると、住戸用受信機７０は試験中と判断し、スピーカ２６での警報を行わず、また２〜５分の遅延タイマの起動を禁止し、更に地区音響制御信号となるＦＶ信号の検出時間を通常時の４秒（第１の検出時間）から住戸点検時の０．１秒（第２の検出時間）に変更すると共に、音声警報信号検出時間を通常時の３秒（第１の検出時間）から住戸点検時の０．１秒（第２の検出時間）に変更する。その後、火災感知器１０の遠隔作動試験が正常に終わって外部試験器４０から試験正常終了を示すｏｋ信号が約２秒間出力されると、中継器５０から作動信号Ｅ１が出力され、この作動信号Ｅ１を住戸用受信機７０が取り込むと、直ちに火災確定信号Ｅ３を出力する。
【００４８】
そして、この火災確定信号Ｅ３を中継器５０が取り込むことで火災信号Ｅ４が出力され、そしてこの火災信号Ｅ４を試験復旧モードが設定された住棟用受信機６０が取り込むことで、ｏｋ信号出力時間と同じ時間（約２秒）だけ地区音響制御信号と音声警報信号とが出力される。点検住戸の住戸用受信機７０はＦＶ信号検出時間と音声警報信号検出時間とを０．１秒（第２の検出時間）に設定しているので、住棟用受信機６０からの地区音響制御信号と音声警報信号とを受けることができる。すなわち、住戸用受信機７０は、試験中信号Ｅ９、作動信号Ｅ１、地区音響制御信号及び音声警報信号の４つの要素を検出することを条件に、これにより戸外表示器８０の表示灯２０を点滅させると共に自己の音源により戸外表示器８０のスピーカ２９を鳴動させる。
【００４９】
点検住戸即ち疑似出火住戸以外の出火階住戸及びその直上階住戸の住戸用受信機７０は、当然ながら試験中信号Ｅ９が来ないので、ＦＶ信号検出時間は通常時の４秒（第１の検出時間）に設定されたままであり、また音声警報信号検出時間は通常時の３秒（第１の検出時間）に設定されたままである。このため、住戸用受信機７０は、住棟用受信機６０より地区音響制御信号と音声警報信号とが出力されても、これらの出力時間がｏｋ信号と同じ約２秒間であるので、ＦＶ信号と音声警報信号とを検出することができず、戸外表示器８０の表示灯２０を点滅させることも戸外表示器８０のスピーカ２９を鳴動させることもしない。
また、外部試験器４０による火災感知器１０の遠隔作動試験時には、住棟用受信機６０を点検モードに設定することから、住棟用受信機６０は、火災信号Ｅ４を取り込むことで、通常の音声警報信号に代わって人間には聞こえない又は聞こえ難い疑似音声信号を出力させる。
【００５０】
したがって、外部試験器４０による火災感知器１０の遠隔作動試験時に、点検住戸以外の近隣住戸では、住戸用受信機７０のスピーカ２６及び戸外表示器８０のスピーカ２９のいずれからも警報は出力されず、点検住戸の戸外表示器８０のスピーカ２９からのみ音声警報が出力されるので、在宅者に無用な動揺をおこさせることがなく、点検者は点検結果を確認することができる。また、住戸用受信機７０が地区音響制御信号と音声警報信号を検出することにより、点検住戸の戸外表示器８０のスピーカ２９から警報を出力させることから、地区音響制御信号線ＥＡと音声警報信号線ＫＰ−ＫＰＣの点検も含めて、システムの総合的な点検を行うことができる（即ち火災感知器１０、中継器５０、住棟用受信機６０、住戸用受信機７０、戸外表示器８０のうちの一つでも異常であれば戸外表示器８０のスピーカ２９は鳴動しない）。また、この際、音声警報信号線ＫＰ−ＫＰCに直接共用部スピーカ６を接続してあっても、住棟用受信機６０に点検モードを設定しておくことにより、疑似音声信号が出力されるので、共用部スピーカ６の鳴動は、聞こえない又は聞こえ難いので、在宅者や廊下等の共用部にいる人に無用な動揺をおこさせることがない。
【００５１】
尚、この実施の形態では、図５に示した自火報総合盤２を有していないが、自火報総合盤２を設けた場合でもそのスピーカ７（図５参照）からは擬似音声信号が出力されることは言うまでもない。
また、この実施の形態では、住棟用受信機６０からの地区音響制御信号を中継器５０のＦＶ信号出力回路１００で平滑定電圧化してＦＶ信号として出力したが、そのまま地区音響制御信号を出力しても良い。
【００５２】
【発明の効果】
以上説明したように本発明によれば、外部試験器による火災感知器の遠隔作動試験時に、点検住戸以外の近隣住戸では、住戸用受信機のスピーカ及び戸外表示器のスピーカのいずれからも警報が出力されず、点検住戸の戸外表示器のスピーカからのみ警報が出力されるので、在宅者に無用な動揺をおこさせることがない。また、点検住戸の住戸用受信機が地区音響制御信号と音声警報信号を検出することで、自己の音源により戸外表示器のスピーカから警報を出力させることから、点検者は地区音響制御信号線及び音声警報信号線の点検も含めた総合的なシステム試験の結果を確認することができる。また、火災感知器の遠隔作動試験時に、住棟用受信機を点検モードに設定することで、住棟用受信機からは通常の音声警報信号に代わって人間には聞こえない又は聞こえ難い疑似音声信号を出力するので、音声警報信号線に共用部スピーカを接続してあっても、該共用部スピーカの鳴動は、聞こえない又は聞こえ難いので、在宅者や廊下等の共用部にいる人に無用な動揺をおこさせることがない。
【図面の簡単な説明】
【図１】本発明に係る共同住宅用火災報知システムの実施の形態の構成を示すブロック図である。
【図２】実施の形態の共同住宅用火災報知システムの詳細な構成を示すブロック図である。
【図３】実施の形態の共同住宅用火災報知システムの住戸用受信機の詳細な構成を示すブロック図である。
【図４】実施の形態の共同住宅用火災報知システムの動作の要点を示す図である。
【図５】従来の共同住宅用火災報知システムの構成を示すブロック図である。
【符号の説明】
６ 共用部スピーカ
１０ 火災感知器
２０ 表示灯
２６、２９ スピーカ
４０ 外部試験器
５０ 中継器
６０ 住棟用受信機
７０ 住戸用受信機
８０ 戸外表示器
９０ 発報検出回路
９３ 火災確定検出回路
９４，９６，ｓt1，ｓt2 接点
９９ ＣＰＵ回路
１００ ＦＶ信号出力回路
１１１ 火災受信制御回路
１１４ 音声警報ユニット
１１５ 操作部
１１５ａ 試験復旧スイッチ
１１６ 点検モードスイッチ
１２１ 火災受信部
１２２ 試験中信号検出部
１２３ ＦＶ信号検出部
１２５ 音声信号出力回路
１２６ 音声検出回路
１２８ 表示灯制御回路
１３０ マイコン
ＥＡ 地区音響制御信号線
ＫＰ−ＫＰＣ 音声警報信号線[0001]
BACKGROUND OF THE INVENTION
The present invention provides a fire detector, a repeater, a dwelling unit receiver, and an outdoor display for each dwelling unit for individual monitoring, and a dwelling unit receiver in a central manager's room or the like for centralized monitoring. It relates to a fire alarm system.
[0002]
[Prior art]
In the conventional fire alarm system for apartment houses, when a fire detector is installed in the dwelling unit, the center of the manager's room, etc. from the housing information panel (receiver for dwelling unit) installed in the dwelling unit A fire signal is sent to the receiver for the residential building that centrally monitors disaster prevention information installed in the building. A receiver for a residential building that has received a fire signal sends, for example, a district acoustic control signal and an audio warning signal to the receiver for each residential unit on the fire floor and directly above it, and the receiver for the residential unit and the door phone (outdoor display) Sound the speaker. At the same time, the receiver for the residential building rings the common-use speaker installed on the fire floor and the floor immediately above it to notify the occurrence of a fire.
[0003]
FIG. 5 is a block diagram showing the configuration of an example of such a conventional fire alarm system for apartment houses. In the fire alarm system for apartment houses shown in this figure, a self-report comprehensive board 2 is provided between the receiver 1 for a residential building and the repeater 3, and the self-report comprehensive panel 2 is provided for each warning area, for example, on each floor. Arranged every time. This self-fire report comprehensive board 2 is provided with relays BF and BN, a speaker 7 and the like, and the relays BF and BN are operated by the district acoustic control signal E6 from the receiver 1 for a residential building. In this case, when the relay contact bn is closed due to the operation of the relay BN, the sound alarm signal E7 from the receiver 1 for residential buildings is supplied to the speaker 7 of the self-fire report comprehensive board 2. Further, when the relay contact bf is closed by the operation of the relay BF, the sound alarm signal E7 from the receiver 1 for the residential building is supplied to the outdoor display 5 and the common use speaker 6 through the self-fire report comprehensive board 2. In addition, it is also supplied to the dwelling unit receiver 4 through the self-fire report comprehensive board 2 and the repeater 3. The district acoustic control signal E6 is supplied to the self-report comprehensive board 2 and is also supplied from the self-report comprehensive board 2 to the dwelling unit receiver 4 and the outdoor display 5 via the repeater 3.
[0004]
Self-recovering fire detectors 10 and 10 are connected in parallel to the repeater 3 via sensor lines 11a and 11b. The self-recovering fire detectors 10 and 10 are configured to generate heat and smoke from a fire. And the like, the alarm current is caused to flow between the sensor lines 11a and 11b. When this alarm current is output to the repeater 3, the reception relay L of the reception circuit 12 in the repeater 3 is activated, and the relay contact 1 is closed to detect a sensor activation signal (hereinafter simply referred to as "activation signal"). ) E1 is output to the dwelling unit receiver 4. Simultaneously with the operation of the receiving relay L, the holding relay M of the holding relay circuit 13 is also operated, and the relay contact m1, M2Are closed, and a fire signal output permission state and an operation signal E1 retention permission state are created.
[0005]
In the receiver for dwelling unit 4, when the operation signal E1 is input from the repeater 3, the reception relay R of the reception circuit 14 is operated. For example, when the operation is continued for 10 seconds, the reception state of the operation signal E1 is maintained. At the same time, the holding relay H is actuated, the relay contact h is closed, and the holding signal E <b> 2 that becomes “L” level is output to the repeater 3. When the holding signal E2 is output, the repeater 3 operates the holding circuit 17 through the relay contact f2, so that the holding relay M of the holding relay circuit 13 is not deactivated even when the fire detector 10 is restored. Hold on. At the same time, the holding circuit 17 changes the supply voltage for the outdoor display 5 from +12 V to +24 V, which is the fire signal E8, to display a fire. The detection circuit 19 of the outdoor indicator 5 detects + 24V which becomes the fire signal E8 and blinks the indicator lamp 20. The dwelling unit receiver 4 receives the operation signal E1 from the repeater 3 to activate its own speech synthesis unit 27, synthesizes a message indicating the operation of the fire detector 10, and amplifies it by the amplifier 28. Output from the speaker 26 via the relay contact dc.
[0006]
Moreover, in the receiver 4 for dwelling units, the monitoring for the predetermined time within the range for 2 to 5 minutes from the time the operation signal E1 is sent from the repeater 3 is performed. That is, when the operation signal E1 is input, the reception relay R is activated, and at the same time, the timer 15 having a delay time T1 of 2 to 5 minutes is started. When the timer 15 expires, the relay contact t1Is opened, and the fire determination signal E3 is output to the repeater 3 by cutting off the voltage signal. When outputting the fire confirmation signal E3, the dwelling unit receiver 4 synthesizes a message indicating the occurrence of a fire by the voice synthesizer 27, amplifies it by the amplifier 28, and then outputs it from the speaker 26 via the relay contact dc. When the voltage signal is interrupted by outputting the fire confirmation signal E3 from the receiver 4 for dwelling units, the output of the photocoupler 21 is changed from “L” level to “H” level in the repeater 3, and the inverter 22 Inverted to “L” level and output at this point, the relay contact m2Is closed and is in an output-permitted state, so that a current flows through the fire confirmation relay relay S and operates. When the fire confirmation relay relay S is activated, the relay contact s1The fire signal E4 which becomes “L” level by closing is output to the receiver 1 for residential buildings via the fire signal line 23. Relay contact s2Is closed, and a reception possible state of the confirmation signal E5 from the receiver 1 for a residential building is created.
[0007]
In the residential building receiver 1, the fire representative display and the district display are performed by receiving the fire signal E <b> 4 from the repeater 3 through the fire report signal line 23. At the same time, the fire representative relay (not shown) is activated, and the corresponding district relay (not shown) is activated. The relay contact fa is closed by the operation of the fire representative relay, and the confirmation signal E5 is output to the repeater 3 via the confirmation signal line 24. When the confirmation signal E5 is output from the receiver 1 for the residential building, the relay F is activated in the repeater 3, and the relay contact f1Close the relay contact m that is already closed1The output state of the operation signal E1 for the dwelling unit receiver 4 is continuously held by the series circuit. Relay contact f2Is opened, the input of the holding signal E2 from the dwelling unit receiver 4 is disconnected, and the holding operation of the holding circuit 17 of the repeater 3 is performed by the confirmation signal E5 from the dwelling unit receiver 1.
[0008]
Further, the residential building receiver 1 outputs the district acoustic control signal E6 to the neighboring dwelling units, specifically, to the dwelling unit on the floor where the fire has occurred and directly above it by the operation of a district relay (not shown). The district acoustic control signal E6 for the fire occurrence floor and the dwelling units directly above it is given to the dwelling unit receiver 4 and the outdoor display 5. At this time, in the receivers 4 for neighboring units other than the fire-dwelling unit, the phototransistor 25 of the photocoupler 25 is turned on by the district acoustic control signal E6 to activate the relay B, and the relay DC is opened by opening the relay contact b. Becomes inoperative, the relay contact dc is switched to the sound alarm signal line 9 side, the speaker 26 is connected, and the sound alarm signal E7 from the sound alarm signal line 9 can be input. In addition, in the outdoor display 5 of the fire and dwelling unit, the relay J is activated by receiving the district acoustic control signal E6 in a state where the detection circuit 19 detects the fire signal E8. The relay contacts j1 and j2 are switched, the speaker 29 is connected to the audio alarm signal line 9, and the audio alarm signal E7 can be input.
[0009]
In the residential building receiver 1, the voice signal generated by the voice synthesizer 30 being activated together with the output of the district acoustic control signal E6 is amplified by the amplifier 31, and then output to the voice warning signal line 9 as the voice warning signal E7. Is done. As a result, in the case of a fire at a dwelling unit, the receiver for the dwelling unit of each dwelling unit other than the speaker 7 of the self-reporting panel 2 on the fire floor and the floor directly above it, the common use speaker 6, the fire floor and the fire dwelling unit on the floor immediately above The sound alarm signal E7 from the receiver 1 for the residential building is supplied to the speaker 26 of 4 and the speaker 29 of the outdoor display 5 of the fire and dwelling unit. For example, “Woo, fire, fire. Fire on the first floor. Check the safety and evacuate. An alarm message is output for the voice message including the location of the fire.
[0010]
In addition, in the receiver 4 for a fire-breaking dwelling unit, although it is a fire in a self-dwelling unit, it will be contradictory to output the voice message including a fire place from the speaker 26. In the receiver 4, the reception relay R is activated by receiving the activation signal E1, and at that time, the relay contact r provided in the district acoustic control signal line 8 is opened to prohibit the input of the district acoustic control signal E6. ing. In addition, in all outdoor indicators 5 other than the fire-exiting unit, if a voice message is output all at once, it is difficult to hear the voice message, and it is difficult to understand which dwelling unit is a fire from the outside. Message output is prohibited.
[0011]
[Problems to be solved by the invention]
By the way, in recent years, there has been a revision of the Fire Service Law standard, and it has been stipulated that a remote operation test of a fire detector can be performed from outside the dwelling unit, taking into account the case where the resident is away from the house, in an automatic fire alarm system for apartment buildings.
In the conventional fire alarm system for an apartment house as shown in FIG. 5, when it is intended to apply a configuration for remotely operating the fire detector from outside the dwelling unit, the fire detection is applied to the repeater 3 installed outside the dwelling unit. By connecting an external tester for remote operation test of the detector 10, the detector lines 11a and 11b are switched to the external tester side, and in that state, a test signal is sent to the fire detector 10 to fire detector A method is conceivable in which 10 is tested one by one and the test result is confirmed by an external tester. In addition, in the remote operation test of the fire detector 10, not only the operation test of the fire detector 10, but also the comprehensive inspection (dwelling unit inspection) of the entire dwelling unit including the interlocking test with the receiver 1 for the residential building. It is desirable to do.
[0012]
However, when such a dwelling unit inspection is applied in the conventional fire alarm system for an apartment house as shown in FIG. 5, a receiver for a residential building is obtained by a remote operation test of the fire detector 10 by an external tester. When 1 receives the fire signal E4 from the repeater 3, the district acoustic control signal E6 and the sound alarm signal E7 are sent to the fire floor and the dwelling units directly above it. From the speaker 26 of the common unit, the speaker 26 of the fired unit and the receiver 26 for the dwelling unit other than the inspection unit, and the speaker 29 of the outdoor display 5 of the inspection unit 5 As a result, the voice alarm signal that is output more is output, and there is a problem of causing unnecessary vibrations to the home residents. Moreover, in this system, since the audio alarm signal E7 is not output from the speaker 26 of the dwelling unit receiver 4 of the inspection dwelling unit, the dwelling unit that is inspecting by connecting an external tester is checked. There has been a problem that it cannot be confirmed at the time of inspection whether the district acoustic control signal E6 and the voice alarm signal E7 have surely arrived at the receiver 4 for dwelling units.
[0013]
The present invention has been made in view of the above-described circumstances, and can perform a dwelling inspection without causing unnecessary swaying to a person at home, and also includes a comprehensive check including inspection of a district acoustic control signal line and a voice alarm signal line. The purpose is to provide a fire alarm system for an apartment house that can perform simultaneous inspections.
[0014]
[Means for Solving the Problems]
  In order to achieve the above object, a fire alarm system for an apartment house according to the first aspect of the present invention includes a fire detector connected to each dwelling unit via a sensor line and a fire detector for each unit. A repeater to which an external tester is connected at the time of dwelling inspection including a remote operation test, and an operation signal output when the repeater detects a fire alarm report, and an audio alarm is given by its own speaker. An outdoor unit comprising a receiver for receiving the operation signal and outputting a fire confirmation signal to the repeater after a predetermined delay time, and a speaker for outputting an audio warning signal transmitted from the receiver for the residential unit In the center of a manager's room, etc., when a fire signal is output when the repeater receives a fire confirmation signal from the receiver for dwelling units, District sound control signal and Houses receiver for outputting an audio alarm signal,And a common part speaker connected to the voice warning signal line that is arranged in the common part and sends a voice warning signal output from the receiver for the residential building to each dwelling unit.In the fire alarm system for the apartment house,
  When a test start operation is performed on the external tester during a dwelling unit inspection, a test in-progress signal is output to the dwelling unit receiver via the repeater, and the test of the fire detector is completed normally A circuit unit for outputting a test normal end signal to the repeater is provided,
  Remote operation of the fire detector from the external tester by switching and connecting the sensor line from the receiver side for the dwelling unit to the external tester side when receiving a test signal from the external tester to the repeater When a test is completed and a test normal end signal is received, an operation signal is output to the dwelling unit receiver. After the operation signal is output, a fire confirmation signal is received from the dwelling unit receiver. A circuit unit for outputting a fire signal to the receiver for the building is provided, and the receiver for the dwelling unit receives an in-test signal from the external tester via the repeater, so that the sound alarm and the delay by its own speaker are received. Prohibit delay operation due to time, and when receiving an operation signal from the repeater while receiving the signal under test, immediately output a fire confirmation signal to the repeater without performing an audio alarm. And the signal during the test The sound generated by its own sound source is received by receiving the operation signal from the repeater and detecting the district acoustic control signal and the sound warning signal output from the receiver for the residential building. A circuit unit is provided to output an alarm signal from the speaker of the outdoor display.The dwelling receiver has an inspection mode that outputs a pseudo audio signal that is inaudible or difficult to hear for humans, and when the dwelling unit is inspected, the inspection mode is set to replace the pseudo warning signal. By outputting a sound signal, pseudo sound is emitted from the shared speaker.It is characterized by that.
[0015]
  According to this configuration, when the fire detector output from the repeater is received by the residential building receiver during the remote operation test of the fire detector by an external tester, the district acoustic control signal and the sound alarm signal are sent to the Although it is sent to the neighboring dwelling unit, the circuit unit of the receiving unit of the fire dwelling unit, that is, the inspection dwelling unit has received the operation signal due to the normal completion of the test in the state where the signal is already being tested from the repeater, By detecting the district acoustic control signal and the voice alarm signal sent from the receiver for the residence building, the alarm is output only from the speaker of the outdoor display with its own sound source.In addition, when the receiver for residential buildings is set to the inspection mode, a pseudo voice signal that is inaudible or difficult to hear for humans is output instead of the normal voice warning signal.
[0016]
  Therefore, if the fire detector of the inspection unit is normal during a remote operation test of the fire detector by an external tester, an alarm is output only from the outdoor indicator of the inspection unit. The result of the dwelling unit inspection can be notified to the inspector without making it.
In addition, since the receiver for the dwelling unit detects the district acoustic control signal and the voice alarm signal, an alarm is output from the speaker of the outdoor indicator of the inspection unit, so the inspection of the district acoustic control signal line and the voice alarm signal line can also be performed. Comprehensive system tests can be performed at the same time.
In addition, a pseudo audio signal that is inaudible or difficult to hear for humans is output instead of the normal audio alarm signal. Can not be heard or difficult to hear, so that people who are at home or in common areas such as hallways do not cause unnecessary upset.
  The fire alarm system for apartment houses according to a second aspect of the invention is characterized in that the pseudo audio signal has a low frequency of about 10 to 100 Hz or a high frequency of about 20 kHz.
[0017]
  Claim 3The fire alarm system for apartment houses according to the invention described above, wherein the receiver for the residential building has a test recovery mode that does not hold a fire signal sent from the repeater set at the time of dwelling unit inspection, and the test recovery mode at the time of dwelling unit inspection Is set, the district acoustic control signal and the audio alarm signal are output only for the time when the fire signal is output from the repeater, and the circuit unit of the external tester When the test normal end signal is output in a time shorter than the first detection time for detecting each of the acoustic control signal and the sound alarm signal, and the circuit unit of the repeater receives the test normal end signal from the external tester In addition, when an operation signal is output to the dwelling unit receiver for about the output time of the normal test end signal and the fire determination signal is received from the dwelling unit receiver after outputting the operation signal, the fire determination signal is output. The fire signal is output to the receiver for the residential building only for the output time of, and the circuit unit of the receiver for the dwelling unit receives the signal under test from the repeater, so that the district acoustic control signal and the voice alarm signal The first detection time for detecting each is changed to a second detection time shorter than the output time of the test normal end signal output from the external tester, and after the change to the second detection time, the test recovery mode By detecting the district sound control signal and the sound warning signal output from the receiver for the residential building where is set, the sound warning signal generated by its own sound source is output from the speaker of the outdoor display. Features.
[0018]
According to this configuration, the circuit unit of the dwelling unit receiver receives a signal under test from the external tester, and thereby fires the first detection time for detecting each of the district acoustic control signal and the voice alarm signal, Since the test time is changed to the second detection time that is shorter than the output time of the test normal end signal output from the external tester when the test of the sensor ends normally, the test is performed from the receiver for the residential building where the test recovery mode is set. Even if the district sound control signal and the sound alarm signal are output for substantially the same time as the output time of the normal end signal, they can be detected.
Therefore, since the circuit unit of the receiver for dwelling of the inspection dwelling unit can detect the district acoustic control signal and the sound alarm signal, it outputs the alarm only from the speaker of the outdoor display with its own sound source.
[0019]
  Claim 4In the fire alarm system for apartment houses according to the invention described above, the circuit unit of the receiver for the dwelling unit in the vicinity of the inspected dwelling unit does not receive the in-test signal from the external tester via the repeater. Since it is the detection time, it is not possible to detect the district sound control signal and the sound warning signal output from the receiver for the residential building in which the dwelling unit inspection test recovery mode is set.
  According to this configuration, the first detection time for detecting each of the district acoustic control signal and the audio warning signal is normal when the circuit unit of the receiver for dwelling unit does not receive a signal under test from the external tester. Since it is longer than that, that is, longer than the output time of the test normal end signal, even if the district acoustic control signal and the sound alarm signal are output from the dwelling receiver, they cannot be detected.
  Therefore, the circuit units of the dwelling unit receivers in the neighboring dwelling units other than the inspection dwelling unit cannot detect the district acoustic control signal and the voice alarm signal, and therefore do not output the alarm from the speaker of the own unit or the speaker of the outdoor display.
[0022]
  Claim 5The fire alarm system for apartment houses according to the described invention is provided in the center of a manager's room, etc., holding the fire signal by receiving the fire signal, and only while holding the fire signal to the fire-breaking unit and its neighboring units The residential building receiver that outputs the district acoustic control signal and the voice alarm signal, the fire detector provided for each dwelling unit, and the fire detector are connected via the sensor line to receive the fire confirmation signal. When a relay device that outputs a fire signal to the receiver for the residential building and an operation signal that is output when the relay device detects a fire alarm is received, A sound warning is performed and a fire confirmation signal is output to the repeater after a predetermined delay time after receiving the activation signal, and the reception for the residence building is received without receiving the activation signal output from the repeater. District sound control output from the machine For the dwelling unit that outputs the audio warning signal output from the receiver for the residential building from its own speaker when each of the signal and the audio warning signal is detected by exceeding a preset first detection time. A remote residential fire alarm system comprising: a receiver; and an outdoor indicator equipped with a speaker that outputs a sound alarm signal transmitted from the receiver for the dwelling unit. Connected to the repeater at the time of dwelling inspection including testing, and when a test start operation was performed, a test in-progress signal was output to the receiver for dwelling via the repeater, and the test of the fire detector was completed normally An external tester provided with a circuit unit that outputs a test normal end signal to the repeater in a time shorter than a first detection time in which the dwelling unit receiver detects each of the district acoustic control signal and the voice alarm signal. The repeater When the test signal is received from the external tester, the sensor line is switched from the dwelling unit receiver side to the external tester side to enable the remote operation test of the fire detector from the external tester. When a test normal end signal is received, an operation signal is output to the receiver for the dwelling unit for about the output time of the test normal end signal. A circuit unit for outputting a fire signal to the residential building receiver for about the output time of the fire confirmation signal is provided, and the residential building receiver holds the fire signal sent from the repeater A test recovery mode and an inspection mode that outputs a false audio signal that is inaudible or difficult to hear for humans, and when the test recovery mode and the inspection mode are set during a dwelling unit inspection, a fire signal is output from the repeater. Been By outputting a pseudo audio signal instead of the district acoustic control signal and the voice warning signal for a certain period of time, and receiving the in-test signal from the external tester via the repeater to the dwelling unit receiver, The first detection time for detecting each of the control signal and the sound alarm signal is changed to a second detection time shorter than the output time of the test normal end signal output from the external tester, When a delay operation due to a delay time is prohibited and an operation signal is received from the repeater while receiving the test signal, a fire confirmation signal is immediately sent to the repeater without performing a sound alarm. It outputs only about the output time, and after changing to the second detection time, the district acoustic control signal and the pseudo sound output from the receiver for the residential building in which the test recovery mode and the inspection mode are set By detecting the signal, characterized in that a circuit portion for outputting a sound alarm signal generated by its own sound from the speaker of the outdoor display.
[0023]
According to this configuration,
During the remote operation test of the fire detector by an external tester, in the neighboring dwelling units other than the inspection dwelling unit, no alarm is output from either the speaker of the dwelling unit receiver or the speaker of the outdoor display unit, and the outdoor display unit of the inspection dwelling unit Since the alarm is output only from the speaker, it is possible to notify the inspector of the result of the dwelling unit inspection without causing unnecessary swaying to the person at home. In addition, since the receiver for the dwelling unit of the inspection unit detects the district acoustic control signal and the voice alarm signal, an alarm is output from the speaker of the outdoor indicator of the inspection unit, so the district acoustic control signal line and the voice alarm signal line Comprehensive system tests including inspections can be performed at the same time. In addition, by setting the residential building receiver to the inspection mode during the remote operation test of the fire detector, a pseudo sound that is inaudible or difficult to hear by humans instead of the normal audio warning signal from the residential building receiver. Because a signal is output, even if a shared speaker is connected to the audio warning signal line, the sound of the shared speaker is inaudible or difficult to hear. There is no cause.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing the configuration of an embodiment of a fire alarm system for apartment houses according to the present invention, FIG. 2 is a block diagram showing the detailed configuration thereof, and FIG. 3 is a repeater, a receiver for dwelling units, and an outdoor indicator. FIG. 4 is a diagram showing the main points of the operation of the fire alarm system for apartment houses according to the embodiment. In FIG. 1 to FIG. 3, the same reference numerals are given to the portions common to FIG. 5 described above.
In the fire alarm system for an apartment house of this embodiment, the fire signal E4 is output from the repeater 50 during the remote operation test (dwelling unit inspection) of the fire detector 10 by the external tester 40. When the district sound control signal and the sound warning signal output from the unit are detected, only the outdoor indicator 80 of the inspection dwelling unit causes the indicator lamp 20 to blink by the control of the dwelling unit receiver 70 and the sound source of the dwelling unit receiver 70 to emit the speaker 29. The alarm is output from.
[0025]
When the external tester 40 is connected to the repeater 50 and the in-test signal E9 is output via the repeater 50, the dwelling unit receiver 70 determines that the test is in progress and receives the in-test signal. When the remote operation test of the fire detector 10 is normally completed, the test normal end signal output from the external tester 40 is received to receive the operation signal E1 output from the repeater 50, and the fire confirmation signal E3. Is output, and when it is detected that the district acoustic control signal and the voice alarm signal are sent from the dwelling receiver 60, the indicator lamp 20 of the outdoor indicator 80 is driven to blink and the outdoor sound source is displayed with its own sound source. The speaker 29 of the device 80 is sounded. In addition, when a remote operation test (dwelling unit inspection) of the fire detector 10 by the external tester 40 is performed, an inspection mode is set in the residence building receiver 60 so that a human can hear from the residence building receiver 60. An audio signal that is not or difficult to hear (hereinafter referred to as a pseudo audio signal) is output. As this pseudo audio signal, for example, a low frequency of 10 to 100 Hz or a high frequency of about 20 kHz, and a waveform is preferably a sine wave, a triangular wave, a rectangular wave, or the like. By using this pseudo audio signal, a voice that is inaudible or difficult to hear for humans is output from the shared speaker 6.
[0026]
Therefore, when a remote operation test (dwelling unit inspection) of the fire detector 10 is performed by the external tester 40, an alarm is output only from the speaker 29 of the outdoor display unit 80 of the inspecting unit, so that an unintentional shake is caused to home residents. The result of the dwelling unit inspection can be notified to the inspector. Further, since the receiver for dwelling unit 70 of the inspection dwelling unit detects the district acoustic control signal and the voice alarm signal, an alarm is output from the speaker 29 of the outdoor indicator 80 of the inspection dwelling unit, so that the district acoustic control signal line EA and Comprehensive inspection of the system can be performed, including inspection of the audio warning signal line KP-KPC (ie, fire detector 10, relay 50, dwelling receiver 60, dwelling receiver 70, outdoor display) If any one of the devices 80 is abnormal, the speaker 29 of the outdoor display device 80 does not ring). At this time, the common part speaker 6 is directly connected to the sound warning signal line KP-KPC, and the inspection mode is set in the receiver 60 for the residential building, so that the common part speaker 6 generates a pseudo sound. Since the signal is output, the ringing of the common use speaker 6 cannot be heard or is difficult to hear, so that a person in the common use such as a home person or a corridor does not cause unnecessary shaking.
In addition, in the fire alarm system for apartment houses of this embodiment, it does not have the self-report comprehensive board 2 shown in FIG. 5, but even when the self-report comprehensive panel 2 is provided, the speaker 7 (FIG. 5). Needless to say, a pseudo audio signal is output from (see FIG. 4).
[0027]
Hereinafter, with reference to FIG.2 and FIG.3, the structure and operation | movement of the fire alarm system for apartment houses are demonstrated.
(I) Configuration of fire alarm system for apartment houses
(A) Configuration of repeater 50
In FIG. 2, the repeater 50 is inserted between the alarm detection circuit 90 for detecting the alarm of the fire detector 10 with a remote operation test function, and between the alarm detection circuit 90 and the fire detector 10. Contact point s for switching the sensor lines 11a and 11b to the external tester 40 side during a remote operation test (dwelling unit inspection) of the fire detector 10 by the external tester 40t1And a contact point s that outputs a signal E9 under test to the dwelling unit receiver 70 by closing.t2And a fire confirmation detection circuit 93 that detects a fire confirmation signal E3 from the dwelling unit receiver 70, and when the alarm detection of the fire detector 10 is detected and the test is output from the external tester 40 for a predetermined short time, for example, 2 seconds. A contact 94 that is closed when an ok signal indicating the end is detected, a reporting resistor 95 that is inserted in series with the contact 94, a contact 96 that is closed when a notification is detected and a fire confirmation signal is detected, and this contact 96, a residential building alarm resistor 97 inserted in series with the contact 96, a residential building terminal resistor 98 connected in parallel with the series circuit of the contact 96 and the residential building alarm resistor 97, an alarm detection circuit 90, and a fire confirmation detection circuit 93. And a CPU circuit 99 for monitoring and controlling the entire repeater such as monitoring of an ok signal (test normal end signal) indicating the normal end of the test from the external tester 40 and switching control of the contacts 94 and 96, and a district sound of 24V pulsating current Smooth the control signal FV signal output circuit 100 that generates a constant voltage of 12V and outputs it as an FV signal, a constant voltage circuit 101 that steps down 24V supplied from the residential building receiver 60 to constant voltages of 14V and 3.2V, and an external test Contact s activated by a test signal E9 from the vessel 40t1, St2The relay ST is provided with. The FV signal is a smoothed 24V pulsating district acoustic control signal output from the residential building receiver 60 and converted to a 12V level. For convenience, the FV signal is an FV signal. Signal.
[0028]
(B) Configuration of receiver 60 for residential building
The receiver 60 for residential buildings receives the 24V constant voltage circuit 110 which produces | generates 24V constant voltage and supplies it to the repeater 50 and the fire detector 10, and the fire signal E4 from the repeater 50, and performs corresponding control. A fire reception control circuit 111, a contact 112 that is closed when the district sound is ringed, and a plurality of contacts 113 that are closed corresponding to the district where the district sound is ringed1, 1132, ..., 113n(In this figure, contact 113 is1Switch for performing various operations such as a sound alarm unit 114 that outputs a sound alarm signal based on a transfer signal from the fire reception control circuit 111 and a test recovery switch 115a that is set for operation during inspection. The operation unit 115 is provided, and an inspection mode switch 116 for setting an inspection mode in the voice alarm unit 114 is provided.
[0029]
By turning on the test restoration switch 115a at the time of dwelling inspection, the fire reception control circuit 111 sets a test restoration mode that does not hold the fire signal E4, and performs a corresponding control output or the like only while receiving the fire signal E4. . When the inspection mode switch 116 is turned on, the audio alarm unit 114 shifts to the inspection mode, and the audio alarm unit 114 is activated based on the transfer signal output when the fire reception control circuit 111 receives the fire signal E4. A pseudo audio signal is output. Multiple contact points 113 for ringing1, 1132, ..., 113nIs provided corresponding to each floor of the apartment building, and the district acoustic control signal line EA from each floor to each floor1, EA2, ..., EAnIs pulled out and connected to the repeater 50 on each floor. In this case, each floor is divided into one section. However, if each floor is divided into two sections, for example, two contacts 113 are associated with each floor.
[0030]
Contact 113 shown in FIG.1From the district acoustic control signal line EA for the first floor1Is drawn out, and the district acoustic control signal line EA1Each repeater 50 provided in each dwelling unit on the first floor is connected. Incidentally, contact 1132From the district acoustic control signal line EA for the second floor2Is drawn out, and the district acoustic control signal line EA2Each repeater 50 provided in each dwelling unit on the second floor is connected. For example, when a fire occurs on the first floor, the contact 112 and the contact 113 corresponding to the first floor that is the fire floor and the second floor that is directly above the first floor.1, 1132Is controlled to be closed, and the district acoustic control signal line EA is connected to the repeater 50 of each dwelling unit on the first floor and the second floor.1, EA2The district acoustic control signal is sent via The sound control signal line EA from the voice alarm unit 1141, EA2,, EAnVoice warning signal line KP for each floor in the same way as1-KPC1, KP2-KPC2, ..., KPn-KPCnIs pulled out and connected to the repeater 50 on each floor. Voice alert signal line KP shown in FIG.1-KPC1Is connected to each repeater 50 provided in each door on the first floor. Incidentally KP2-KPC2Is connected to each repeater 50 provided in each dwelling unit on the second floor. For example, when a fire occurs on the first floor, an audio warning signal is sent to the repeater 50 of each dwelling unit on the first and second floors.
[0031]
(C) Configuration of receiver 70 for dwelling unit
The dwelling unit receiver 70 is in an open state when a fire is confirmed, a contact 120 for sending a fire confirmation signal E3 to the repeater 50, a fire receiving unit 121 for receiving the operation signal E1 from the repeater 50, and the repeater 50 A test signal detector 122 that detects a test signal E9 output from the external tester 40 via the FV signal, an FV signal detector 123 that detects an FV signal serving as a district acoustic control signal from the repeater 50, and audio An audio signal output circuit 125 that outputs an alarm signal, an audio signal detection circuit 126 that detects an audio alarm signal from the receiver 60 for a residential building, an audio alarm signal from the audio signal output circuit 125, and a receiver 60 for a residential building Is configured to include a contact 127 for switching to a sound alarm signal from the speaker, a speaker 26, and an indicator lamp control circuit 128 (see FIG. 3) for blinking the indicator lamp 20 of the outdoor indicator 20. . The fire receiving unit 121, the in-test signal detecting unit 122, and the FV signal detecting unit 123 are realized by a microcomputer 130 as shown in FIG. In the dwelling unit receiver 70, the detection times of the FV signal detection unit 123 and the audio signal detection circuit 126 can be changed between a normal time and a dwelling unit inspection time. In the FV signal detection unit 123, the normal time is set to 4 seconds (first detection time), for example, and the dwell unit inspection is set to 0.1 seconds (second detection time), for example. In the audio signal detection circuit 126, for example, the normal time is set to 3 seconds (first detection time), and the dwell unit inspection is set to 0.1 seconds (second detection time), for example.
[0032]
Here, with reference to FIG. 3, the detail of a structure of the receiver 70 for dwelling units is demonstrated.
A contact 131 is inserted in series on the FV signal path inside the dwelling unit receiver 70, and a relay RY 132 is inserted in parallel from the contact 131 to the output side. Further, an indicator lamp control circuit 128 for driving the indicator lamp 20 of the outdoor indicator 80 is provided on the output side of the relay RY132. The relay RY131 is activated when power is supplied to the dwelling unit receiver 70 when energized, and is deactivated when power is not supplied due to a power failure or the like. Therefore, the contact 131 is on the point a side when the relay RY131 is in the operating state, and the FV signal path is switched to the open side, and when the relay RY 131 is inactive, the point b is switched to close the FV signal path.
[0033]
On the other hand, on the audio alarm signal path inside the dwelling unit receiver 70, the contact 132 of the relay RY132 that is switchable in series and on both the signal line side and the ground line side.1, 1322Are inserted, and these contact points 132 are inserted.1, 1322While the relay RY132 is inactive,
In other words, when energized, when the speaker 29 of the outdoor display 80 is connected to the audio signal output circuit 125 of the dwelling unit receiver 70 and the contact 131 is switched to the b point side due to the inactivation of the relay RY131. When the relay RY132 is actuated by the FV signal, the relay RY132 is switched to the point a, and the speaker 29 of the outdoor display 80 is connected to the sound alarm signal line KP-KPC. The speaker 26 in the dwelling unit receiver 70 is connected to a contact 127 of a switching relay RY127.1, 1272Is connected to either the audio signal output circuit 125 or the audio alarm signal line KP-KPC.
[0034]
Since the relay RY127 is activated when power is supplied to the receiver 70 for dwelling units at normal time, the contact 127 thereof.1, 1272Is on the point a side and connects the speaker 26 to the audio signal output circuit 125. The audio signal output circuit 125 is activated by receiving an activation signal from the microcomputer 130 and an output port selection signal for selecting the speakers 26 and 29 for outputting the audio alarm signal, and is selected by synthesizing a predetermined message. Output to an output port, that is, a speaker. The audio signal detection circuit 126 detects an audio signal on the audio alarm signal line KP-KPC, and notifies the microcomputer 130 when the audio signal is detected. The indicator lamp control circuit 128 normally lights the indicator lamp 20 of the outdoor indicator 80 and blinks according to a command from the microcomputer 130 when an actual fire occurs or when an external tester 40 performs an outdoor inspection.
[0035]
(I) Operation of fire alarm system for apartment houses
Hereinafter, the operation of the fire alarm system for apartment houses according to the present embodiment will be described. In addition, FIG. 4 is a figure which shows the principal point of operation | movement of the fire alerting | reporting system for apartment houses of this Embodiment.
(I) In case of fire
(A) Operation at a fire-breaking unit
When a fire occurs in the self-dwelling unit and the fire detector 10 issues a notification, the notification is detected by the notification detection circuit 90 of the repeater 50 and notified to the CPU circuit 99. When the CPU circuit 99 receives the notification issued by the fire detector 10, the CPU circuit 99 closes the contact 94 and outputs the operation signal E1 to the dwelling unit receiver 70. When the fire receiver 121 of the microcomputer 130 of the dwelling unit receiver 70 receives the operation signal E1 output from the repeater 50, the indicator lamp control circuit 128 is controlled to blink the indicator lamp 20 of the outdoor indicator 80, and The sound signal output circuit 125 is operated to output a fire detector operation message from the speaker 26 of the dwelling unit receiver 70.
[0036]
In addition, the fire receiving unit 121 receives the operation signal E1, and starts a delay timer (not shown) in which a time for confirming the fire, for example, 2 to 5 minutes is set. Then, it is determined whether or not the recovery switch (not shown) has been operated for 2 to 5 minutes after the start of the delay timer. If the recovery switch is not operated during this period, the delay timer is timed up. Then, the contact 120 is opened and the fire confirmation signal E3 is output to the repeater 50. At the same time, the audio signal output circuit 125 is operated to output a fire operation message from the speaker 26 of the dwelling unit receiver 70 and also output a fire operation message from the speaker 29 of the outdoor display 80. In this case, the relay RY127 of the dwelling unit receiver 70 is activated when the power is turned on, so that the contact 127 thereof is turned on when the power is turned on.1, 1272Switches to the point a side, and the speaker 26 is connected to the audio signal output circuit 125. Moreover, since the relay RY131 of the dwelling unit receiver 70 is also activated when the power is turned on, the contact 131 is switched to the point a side to open the FV signal path.
[0037]
When the fire confirmation signal E3 output from the dwelling unit receiver 70 is received by the fire confirmation detection circuit 93 of the repeater 50, the CPU circuit 99 is notified accordingly. When the CPU circuit 99 receives the notification that the fire detection signal E3 has been received while receiving the notification of the fire detector 10 from the notification detection circuit 90, the CPU circuit 99 closes the contact 96 and uses the fire signal E4 for the residential building. Output to the receiver 60. When the fire signal E4 from the repeater 50 is detected by the fire reception control circuit 111 of the residential building receiver 60, the fire signal is held, and the district sound ringing contact 112 is closed and, for example, a fire floor. Contact 113 corresponding to the first floor and the second floor immediately above it1, 1132Close the district acoustic control signal line EA1, EA2To output the district sound control signal. In addition, the fire reception control circuit 111 outputs a warning signal including a fire representative signal, a fire district signal, and a district acoustic ringing representative signal to the voice alarm unit 114.
[0038]
The voice alarm unit 114 receives the transfer signal, and thereby the voice alarm signal line KP corresponding to the first floor which is the fire floor and the second floor which is immediately above the fire floor.1-KPC1, KP2-KPC2An audio warning signal is output to. Then, the district acoustic control signal (24V pulsating flow) output from the residential building receiver 60 is converted into an FV signal (12V DC) by the FV signal output circuit 100 of the repeater 50, and is sent to the residential receiver 70. Is output. The FV signal that is the district sound control signal output to the dwelling unit receiver 70 is detected by the FV signal detection unit 123 of the microcomputer 130 of the dwelling unit receiver 70. The voice alarm signal is detected by the voice detection circuit 26. At this time, since the microcomputer 130 has already received the operation signal E1, nothing is done even if the FV signal and the voice alarm signal are detected. That is, the fire operation message is continuously output from the speaker 26 of the dwelling unit receiver 70 and the speaker 29 of the outdoor display 80, and the indicator lamp 20 of the outdoor display 80 is continuously blinked.
[0039]
(B) Operation in neighboring dwelling units (fired units other than fired units and directly above units)
As described above, since the fire receiver 121 of the microcomputer 130 receives the operation signal E1 from the repeater 50 in the receiver 70 for the fire and dwelling unit, nothing is received even if the voice alarm signal and the FV signal are sent. do not do. On the other hand, in the dwelling unit receiver 70 of the neighboring dwelling unit, the fire receiving unit 121 of the microcomputer 130 does not receive the operation signal E1 from the repeater 50, so that the FV signal obtained by converting the voice alarm signal and the district acoustic control signal is When the voice alarm signal is detected by the voice detection circuit 126 and the FV signal is detected by the FV signal detection unit 123, the relay RY127 is deactivated and the contact 127 thereof.1, 1272Is switched to the point b side, and the speaker 26 is connected to the audio warning signal line KP-KPC. Thereby, the audio | voice warning signal output from the receiver 60 for dwellings is output from the speaker 26 of the receiver 70 for dwelling units of a neighboring dwelling unit. At this time, if the fire-breaking unit is on the first floor, the voice warning signal line KP laid on the first floor1-KPC1And voice warning signal line KP laid on the second floor2-KPC2An audio alarm signal is output to the speaker 26 of the dwelling unit receiver 70 of each dwelling unit other than the first-floor fired unit and each dwelling unit on the second floor. At this time, since the microcomputer 130 does not operate the audio signal output circuit 125, no alarm is output from the speaker 29 of the outdoor display 80. In normal times, the detection time of the FV signal detection unit 123 and the audio signal detection circuit 126 is set to the first detection time, for example, 4 seconds and 3 seconds. Both signals are detected to self-hold the signal and output the district acoustic control signal and the audio warning signal for a time longer than the first detection time.
[0040]
(B) At the time of dwelling unit inspection (systemic comprehensive inspection including remote operation test of fire detector 10 by external tester 40)
The inspector makes the following settings before inspecting the dwelling unit.
(1) The inspection mode switch 116 of the receiver 60 for residential buildings is turned on to set the voice alarm unit 114 to the inspection mode. That is, a pseudo audio signal is output.
(2) The test recovery switch 115a of the residential building receiver 60 is turned on to set the test recovery mode in which the fire signal E4 is not held. That is, only when the fire signal E4 is output to the residential building receiver 60, the district sound ring contact 112 and the segment ring contact 113 are provided.1, 1132, ..., 113nAnd control of the voice alarm unit 114 are performed.
[0041]
(A) Operation at the inspection dwelling unit
After performing the above setting, when the external tester 40 is connected to the repeater 50 and a test start operation is performed, the external tester 40 outputs a test E9 signal to the repeater 50 and relays ST of the repeater 50. Is activated. When the relay ST of the repeater 50 is activated, its contact st1Is switched to the external tester 40 side, and the sensor lines 11a and 11b are connected to the external tester 40, thereby enabling a remote operation test of the fire detector 10 from the external tester 40. Also, the contact s is activated by the relay ST being activated.t2Is closed and the in-test signal E9 is output to the dwelling unit receiver 70. The in-test signal E9 is detected by the in-test signal detector 122 of the microcomputer 130 of the dwelling unit receiver 70. When the microcomputer 130 detects the in-test signal E9, (1) alarm prohibition at the speaker 26, (2) test In order to finish the process quickly, the delay timer start prohibition of 2 to 5 minutes, (3) the FV signal detection time of the FV signal detection unit 123 and the shortening of the voice alarm signal detection time of the voice signal detection circuit 126 are set. The FV signal detection time and the voice warning signal detection time are times for determining that the FV signal and the voice warning signal have been sent. The FV signal and the voice warning that are the district acoustic control signals exceeding this time. When the signal is sent, the FV signal detection unit 123 detects the FV signal, and the audio signal detection circuit 126 detects the audio alarm signal. In this case, the FV signal detection time is normally set to, for example, 4 seconds (first detection time), and is shortened to, for example, 0.1 seconds (second detection time) during dwelling inspection. The voice alarm signal detection time is set to 3 seconds (first detection time), for example, during normal times, and is shortened to, for example, 0.1 seconds (second detection time) at the time of dwelling unit inspection.
[0042]
The external tester 40 outputs a test signal E9 to the repeater 50, and then outputs a test signal to the fire detector 10 via the sensor lines 11a and 11b. Check. In this case, each fire detector 10 is addressed and a test signal is output one by one to check the test state for all. When it is determined that the tests have been normally completed for all the fire detectors 10, the external tester 40 sends an ok signal indicating the normal completion of the test to the repeater 50. The ok signal is output for 2 seconds, for example. The output time of the ok signal is set in consideration of the time during which the dwelling unit receiver 70 does not hold the operation signal E1. When the CPU circuit 99 of the repeater 50 takes in the ok signal, the contact 94 is closed only for that time, that is, for about 2 seconds, and the operation signal E1 is output to the dwelling unit receiver 70. Then, when the fire receiving unit 121 of the dwelling unit receiver 70 captures the operation signal E1, the microcomputer 130 immediately opens the contact 120 and outputs the fire confirmation signal E3 to the repeater 50. The fire confirmation signal E3 is output only for the time during which the operation signal E1 is received, that is, for about 2 seconds. When the fire confirmation signal E3 is detected by the fire confirmation detection circuit 93 of the repeater 50, the CPU circuit 99 is notified accordingly. When the CPU circuit 99 receives notification that the fire confirmation signal E3 has been detected, the CPU circuit 99 closes the contact 96 and sends a fire signal E4 to the receiver 60 for residential buildings. The fire signal E4 is sent out for about 2 seconds, ie, approximately the same time as the sending time of the ok signal, for the fire confirmation signal E3.
[0043]
When the fire reception control circuit 111 of the residential building receiver 60 receives the fire signal E4 sent from the repeater 50, the district acoustic ringing representative contact 112 is closed and, for example, the first floor that is the fire floor and the floor directly above it. The contact 113 corresponding to the second floor1, 1132Close the district acoustic control signal line EA1, EA2To output the district sound control signal. The fire reception control circuit 111 outputs a warning signal such as a fire district signal to the voice alarm unit 114. The voice alarm unit 114 receives the transfer signal, and thereby the voice alarm signal line KP corresponding to the first floor which is the fire floor and the second floor which is immediately above the fire floor.1-KPC1, KP2-KPC2Output a pseudo audio signal. At this time, since the receiver 60 for residential buildings has set the test recovery mode, the district acoustic control signal and the pseudo audio signal are output only during the time when the fire signal E4 is transmitted, for example, about 2 seconds.
[0044]
The district acoustic control signal output from the residential building receiver 60, that is, the pulsating flow of 24V, is converted into an FV signal, that is, 12V direct current by the FV signal output circuit 100 of the repeater 50, and is output to the receiver 70 for residential units. The sound alarm signal output from the dwelling unit receiver 60 is output to the dwelling unit receiver 70 via the repeater 50. In this case, since the output period of the ok signal of the external tester 40 is 2 seconds as described above, the FV signal is also output for approximately the same 2 seconds. At this time, since the FV signal detection time of the FV signal detection unit 123 of the microcomputer 130 of the dwelling unit receiver 70 is set to 0.1 second (second detection time), the FV signal detection unit 123 uses the district sound. An FV signal that is a control signal is detected. In addition, since the audio warning signal is also output for approximately 2 seconds, and the audio alarm signal detection time of the audio signal detection circuit 126 of the dwelling unit receiver 70 is also set to 0.1 second (second detection time), The audio signal detection circuit 126 detects a pseudo audio signal.
[0045]
When the microcomputer 130 receives the operation signal E1 while receiving the signal E9 under test, the FV signal detection unit 123 detects the FV signal, and the audio signal detection circuit 126 detects the audio alarm signal, The sound signal output circuit 125, which is its own sound source, is activated and only the speaker 29 of the outdoor indicator 80 is selected to output a sound alarm, and the indicator light 20 of the outdoor indicator 80 is controlled by controlling the indicator light control circuit 128. Blink. The inspector can confirm that the comprehensive system test including the inspection of the district acoustic control signal and the audio alarm signal line has been completed normally by listening to the audio alarm output from the speaker 29. Further, in this case, by outputting a pseudo sound signal, as shown in FIG. 1, even if the common use speaker 6 is connected to the sound alarm signal line KP-KPC, the common use speaker 6 Since an alarm that is inaudible or difficult to hear for humans is output, it is possible to check the dwelling unit without causing unnecessary inconvenience to people at home or in common areas such as corridors.
Note that the second detection time, for example, 0.1 seconds is sufficiently shorter than the output time of the district sound control signal and the audio warning signal, for example, 2 seconds, so that the output time of both signals between the systems is shortened. Even if there is, it can be reliably detected.
[0046]
(B) Operation in neighboring dwelling units (fired units other than fired units and directly above units)
Since the microcomputer 130 of the dwelling unit receiver 60 of the neighboring dwelling unit has not received the in-test signal E9 from the repeater 50, the FV detection time of the FV signal detection unit 123 and the change of the audio warning signal detection time of the audio signal detection circuit 126 are changed. The FV detection time remains set at 4 seconds (first detection time), and the voice alarm signal detection time remains set at 3 seconds (first detection time). Therefore, the FV signal detection unit 123 cannot detect an FV signal that is sent only for about 2 seconds, and the audio signal detection circuit 126 also detects a voice alarm signal that is sent for only about 2 seconds. I can't. Therefore, the microcomputer 130 does nothing. That is, no alarm is output from the speaker 26 of the dwelling unit receiver 70 of the neighboring dwelling unit or the speaker 29 of the outdoor display 80. Of course, the indicator lamp 20 of the outdoor indicator 80 does not blink. Therefore, unnecessary inconvenience is not caused to the residents in the neighboring dwelling units.
[0047]
Thus, in this embodiment, when the test in-progress signal E9 is output via the repeater 50 during the remote operation test of the fire detector 10 by the external tester 40, the dwelling unit receiver 70 determines that the test is in progress. However, the alarm on the speaker 26 is not performed, the activation of the delay timer of 2 to 5 minutes is prohibited, and the detection time of the FV signal that becomes the district sound control signal is set to 4 seconds (the first detection time) at the normal time. To 0.1 second (second detection time) at the time of dwelling unit inspection, and the sound alarm signal detection time is changed from 3 seconds (first detection time) at normal time to 0.1 second (first detection time) at dwelling unit inspection 2 detection time). After that, when the remote operation test of the fire detector 10 ends normally and the ok signal indicating the normal end of the test is output from the external tester 40 for about 2 seconds, the operation signal E1 is output from the repeater 50, and this operation signal As soon as the dwelling unit receiver 70 captures E1, a fire confirmation signal E3 is output.
[0048]
When the repeater 50 captures the fire confirmation signal E3, the fire signal E4 is output, and the fire signal E4 is captured by the residential building receiver 60 in which the test recovery mode is set. The district acoustic control signal and the sound warning signal are output for the same time (approximately 2 seconds). Since the dwelling unit receiver 70 of the inspection dwelling unit sets the FV signal detection time and the voice alarm signal detection time to 0.1 second (second detection time), the district acoustic control from the dwelling unit receiver 60 is performed. Signals and audio alert signals can be received. In other words, the dwelling unit receiver 70 blinks the indicator light 20 of the outdoor display 80 on condition that four elements of the test signal E9, the operation signal E1, the district sound control signal, and the sound alarm signal are detected. At the same time, the speaker 29 of the outdoor display 80 is caused to ring by its own sound source.
[0049]
Of course, the receiver 70 for the fire floor other than the inspection unit, that is, the pseudo-fire unit and the receiver 70 for the unit directly above the unit, does not receive the in-test signal E9, so the FV signal detection time is 4 seconds (the first detection) Time) and the voice alarm signal detection time remains set to 3 seconds (first detection time) in normal times. For this reason, even if the residential acoustic receiver 70 outputs the district acoustic control signal and the voice alarm signal from the residential building receiver 60, the output time is about 2 seconds, which is the same as the ok signal. And the sound alarm signal cannot be detected, and the indicator lamp 20 of the outdoor display 80 is not blinked and the speaker 29 of the outdoor display 80 is not sounded.
Further, during the remote operation test of the fire detector 10 by the external tester 40, the residential building receiver 60 is set to the inspection mode. Therefore, the residential building receiver 60 captures the fire signal E4, so that a normal operation is performed. Instead of the audio warning signal, a pseudo audio signal that is inaudible or difficult to hear for humans is output.
[0050]
Therefore, during the remote operation test of the fire detector 10 by the external tester 40, no alarm is output from any of the speaker 26 of the dwelling unit receiver 70 and the speaker 29 of the outdoor display 80 in the neighboring dwelling units other than the inspection dwelling unit. Since the sound alarm is output only from the speaker 29 of the outdoor indicator 80 of the inspection dwelling unit, the inspector can confirm the inspection result without causing unnecessary swaying to the person at home. Further, since the dwelling unit receiver 70 detects the district acoustic control signal and the voice alarm signal, an alarm is output from the speaker 29 of the outdoor display unit 80 of the inspection dwelling unit. Therefore, the district acoustic control signal line EA and the voice warning signal are output. Comprehensive system inspection can be performed, including inspection of the line KP-KPC (i.e., fire detector 10, repeater 50, dwelling receiver 60, dwelling receiver 70, outdoor display 80 If any one of them is abnormal, the speaker 29 of the outdoor display 80 does not ring). At this time, even if the common use speaker 6 is directly connected to the audio warning signal line KP-KPC, a pseudo audio signal is output by setting the inspection mode in the receiver 60 for residential buildings. Therefore, since the ringing of the shared section speaker 6 is inaudible or difficult to hear, it does not cause unnecessary shaking to a person in the shared section such as a home person or a corridor.
[0051]
In this embodiment, the self-fire report comprehensive board 2 shown in FIG. 5 is not provided. However, even when the self-fire report comprehensive board 2 is provided, a pseudo audio signal is output from the speaker 7 (see FIG. 5). Needless to say, is output.
In this embodiment, the district acoustic control signal from the residential building receiver 60 is smoothed and voltage-converted by the FV signal output circuit 100 of the repeater 50 and output as an FV signal, but the district acoustic control signal is output as it is. You may do it.
[0052]
【The invention's effect】
As described above, according to the present invention, in the remote operation test of the fire detector by the external tester, in the neighboring dwelling units other than the inspection dwelling unit, an alarm is issued from both the speaker of the receiver for the dwelling unit and the speaker of the outdoor display unit. Since it is not output and an alarm is output only from the speaker of the outdoor display of the inspection dwelling unit, the home-staying person is not caused to be disturbed unnecessarily. In addition, since the receiver for the dwelling unit of the inspection dwelling unit detects the district acoustic control signal and the voice alarm signal, the inspector can output the alarm from the speaker of the outdoor display by his own sound source. The result of the comprehensive system test including the inspection of the voice alarm signal line can be confirmed. In addition, by setting the residential building receiver to the inspection mode during the remote operation test of the fire detector, a pseudo sound that is inaudible or difficult to hear by humans instead of the normal audio warning signal from the residential building receiver. Because it outputs a signal, even if a shared speaker is connected to the audio warning signal line, the sound of the shared speaker is inaudible or difficult to hear. There is no upset.
[Brief description of the drawings]
FIG. 1 is a block diagram showing the configuration of an embodiment of a fire alarm system for apartment houses according to the present invention.
FIG. 2 is a block diagram showing a detailed configuration of the fire alarm system for apartment houses according to the embodiment.
FIG. 3 is a block diagram showing a detailed configuration of a receiver for dwelling units in the fire alarm system for apartment houses according to the embodiment.
FIG. 4 is a diagram showing the main points of operation of the fire alarm system for apartment houses according to the embodiment.
FIG. 5 is a block diagram showing a configuration of a conventional fire alarm system for an apartment house.
[Explanation of symbols]
6 Common use speaker
10 Fire detector
20 Indicator light
26, 29 Speaker
40 External tester
50 repeater
60 Receiver for residential building
70 Receiver for dwelling unit
80 Outdoor display
90 Alarm detection circuit
93 Fire detection circuit
94, 96, st1, St2  contact
99 CPU circuit
100 FV signal output circuit
111 Fire reception control circuit
114 Voice alarm unit
115 Operation unit
115a Test recovery switch
116 Inspection mode switch
121 Fire receiver
122 Test signal detector
123 FV signal detector
125 audio signal output circuit
126 Voice detection circuit
128 Indicator light control circuit
130 Microcomputer
EA area acoustic control signal line
KP-KPC audio warning signal line

Claims (5)

各住戸毎に、火災感知器と、該火災感知器を感知器回線を介して接続すると共に該火災感知器の遠隔作動試験を含む住戸点検時に外部試験器が接続される中継器と、前記中継器が前記火災感知器の発報を検出した場合に出力する作動信号を受信して自己のスピーカにより音声警報を行うと共に前記作動信号を受けて所定の遅延時間後に火災確定信号を中継器に出力する住戸用受信機と、該住戸用受信機側から送られてくる音声警報信号を出力するスピーカを備えた戸外表示器とを設け、管理人室等の中央に、前記中継器が前記住戸用受信機より火災確定信号を受けた場合に出力する火災信号を受信した際に出火住戸とその近隣住戸に対して地区音響制御信号及び音声警報信号を出力する住棟用受信機、及び共用部に配置され、前記住棟用受信機より出力される音声警報信号を各住戸に送る音声警報信号線に接続される共用部スピーカを設けた共同住宅用火災報知システムにあって、
前記外部試験器に、住戸点検時、試験開始操作を行った場合に前記中継器を介して前記住戸用受信機に試験中信号を出力し、前記火災感知器の試験が正常に終了した場合に前記中継器に試験正常終了信号を出力する回路部を設け、
前記中継器に、前記外部試験器より試験中信号を受けた場合に前記感知器回線を住戸用受信機側から外部試験器側に切換え接続して外部試験器からの前記火災感知器の遠隔作動試験を可能とし、試験正常終了信号を受けた場合に前記住戸用受信機に作動信号を出力し、該作動信号を出力した後前記住戸用受信機より火災確定信号を受けた場合に前記住棟用受信機に火災信号を出力する回路部を設け、前記住戸用受信機に、前記中継器経由で前記外部試験器からの試験中信号を受けることで、自己のスピーカによる音声警報及び前記遅延時間による遅延動作を禁止して、該試験中信号を受けている状態で前記中継器より作動信号を受けた場合に、音声警報を行わず、直ちに前記中継器に火災確定信号を出力するようにし、また、該試験中信号を受けている状態で、前記中継器より作動信号を受信し、且つ、前記住棟用受信機より出力される地区音響制御信号及び音声警報信号を検出することで、自己の音源で生成した音声警報信号を前記戸外表示器のスピーカから出力させる回路部を設け、前記住棟用受信機は、人間には聞こえない又は聞こえ難い疑似音声信号を出力する点検モードを備え、住戸点検時、該点検モードを設定することで前記音声警報信号に代えて該疑似音声信号を出力することにより前記共用スピーカから疑似音声を放音させることを特徴とする共同住宅用火災報知システム。For each dwelling unit, a fire detector, a repeater to which the fire detector is connected via a sensor line and to which an external tester is connected at the time of dwelling inspection including a remote operation test of the fire detector, and the relay When a fire detector detects a fire alarm, it receives an activation signal and issues a sound alarm with its own speaker, and receives the activation signal and outputs a fire confirmation signal to the repeater after a predetermined delay time. A dwelling unit receiver, and an outdoor display provided with a speaker that outputs a sound alarm signal sent from the dwelling unit receiver side, and the repeater is for the dwelling unit in the center of an administrator room or the like Houses receiver for outputting a local sound control signals and voice alarm signal to the fire dwelling and its neighboring dwelling units upon receiving a fire signal to be output when receiving a fire confirmation signal from the receiver, and the shared portion Arranged and received for the residential building In the co-residential fire alarm system in which a common portion speaker connected to the audio alarm signal is more output to the audio warning signal line for sending to each dwelling unit,
When a test start operation is performed on the external tester during a dwelling unit inspection, a test in-progress signal is output to the dwelling unit receiver via the repeater, and the test of the fire detector is completed normally A circuit unit for outputting a test normal end signal to the repeater is provided,
Remote operation of the fire detector from the external tester by switching and connecting the sensor line from the receiver side for the dwelling unit to the external tester side when receiving a test signal from the external tester to the repeater When a test is completed and a test normal end signal is received, an operation signal is output to the dwelling unit receiver. After the operation signal is output, a fire confirmation signal is received from the dwelling unit receiver. A circuit unit for outputting a fire signal to the receiver for the building is provided, and the receiver for the dwelling unit receives an in-test signal from the external tester via the repeater, so that the sound alarm and the delay by its own speaker are received. Prohibit delay operation due to time, and when receiving an operation signal from the repeater while receiving the signal under test, immediately output a fire confirmation signal to the repeater without performing an audio alarm. And the signal during the test The sound generated by its own sound source is received by receiving the operation signal from the repeater and detecting the district acoustic control signal and the sound warning signal output from the receiver for the residential building. A circuit unit that outputs a warning signal from a speaker of the outdoor display is provided , and the receiver for the residential building is provided with an inspection mode that outputs a pseudo audio signal that is inaudible or difficult to hear for humans. A fire alarm system for an apartment house, wherein a pseudo sound is emitted from the shared speaker by outputting the pseudo sound signal instead of the sound warning signal by setting an inspection mode . 前記疑似音声信号は、周波数が１０〜１００Ｈｚ程度の低周波又は２０ｋＨｚ程度の高周波であることを特徴とする請求項１記載の共同住宅用火災報知システム。The fire alarm system for apartment houses according to claim 1 , wherein the pseudo audio signal has a low frequency of about 10 to 100 Hz or a high frequency of about 20 kHz. 前記住棟用受信機は、住戸点検時に設定する前記中継器から送られる火災信号を保持しない試験復旧モードを備え、住戸点検時に該試験復旧モードが設定されている状態では、前記中継器より火災信号が出力されている時間程度だけ地区音響制御信号及び音声警報信号を出力し、
前記外部試験器の回路部は、前記住戸用受信機が地区音響制御信号及び音声警報信号の夫々を検出する第１の検出時間より短い時間で試験正常終了信号を出力し、
前記中継器の回路部は、前記外部試験器より試験正常終了信号を受けた場合に、試験正常終了信号の出力時間程度だけ前記住戸用受信機に作動信号を出力し、該作動信号を出力した後前記住戸用受信機より火災確定信号を受けた場合に、該火災確定信号の出力時間程度だけ前記住棟用受信機に火災信号を出力し、
前記住戸用受信機の回路部は、前記中継器より試験中信号を受けることで、地区音響制御信号及び音声警報信号の夫々を検出する第１の検出時間を前記外部試験器より出力される試験正常終了信号の出力時間より短い第２の検出時間に変更し、該第２の検出時間への変更後、試験復旧モードが設定された前記住棟用受信機より出力される地区音響制御信号及び音声警報信号を検出することで、自己の音源で生成した音声警報信号を前記戸外表示器のスピーカから出力させることを特徴とする請求項１記載の共同住宅用火災報知システム。The dwelling receiver has a test recovery mode that does not hold a fire signal sent from the repeater set at the time of dwelling inspection, and in the state where the test recovery mode is set at the dwelling inspection, than the repeater Output the district sound control signal and sound warning signal only for the time when the fire signal is output,
The circuit unit of the external tester outputs a test normal end signal in a time shorter than a first detection time in which the receiver for dwelling unit detects each of the district acoustic control signal and the sound alarm signal,
When the circuit unit of the repeater receives a test normal end signal from the external tester, it outputs an operation signal to the dwelling unit receiver for about the output time of the test normal end signal, and outputs the operation signal After receiving a fire confirmation signal from the receiver for the dwelling unit, a fire signal is output to the receiver for the residential building only for the output time of the fire confirmation signal,
The test unit in which the circuit unit of the dwelling unit receiver outputs a first detection time for detecting each of the district acoustic control signal and the voice alarm signal by receiving a signal under test from the repeater from the external tester. The district acoustic control signal is output from the receiver for the residential building in which the test recovery mode is set after changing to the second detection time, which is shorter than the output time of the normal end signal. 2. The fire alarm system for an apartment house according to claim 1, wherein an audio alarm signal generated by the sound source is output from a speaker of the outdoor display by detecting the audio alarm signal. 点検住戸近隣の住戸の前記住戸用受信機の回路部は、前記中継器経由で前記外部試験器からの試験中信号を受けておらず第１の検出時間であることから、住戸点検時試験復旧モードが設定された前記住棟用受信機より出力される地区音響制御信号及び音声警報信号を検出できないことを特徴とする請求項３記載の共同住宅用火災報知システム。The circuit unit of the receiver for the dwelling unit in the vicinity of the inspection dwelling unit does not receive the test signal from the external tester via the repeater and is the first detection time. 4. The fire alarm system for an apartment house according to claim 3 , wherein the district acoustic control signal and the sound alarm signal output from the residential building receiver set in the mode cannot be detected. 管理人室等の中央に設けられる、火災信号を受信することで該火災信号を保持し、保持している間のみ出火住戸とその近隣住戸に対して地区音響制御信号及び音声警報信号を出力する住棟用受信機と、
各住戸毎に設けられる、
火災感知器と、
該火災感知器を感知器回線を介して接続し、火災確定信号を受けた場合に前記住棟用受信機に火災信号を出力する中継器と、
前記中継器が前記火災感知器の発報を検出した場合に出力する作動信号を受信した場合には、自己のスピーカにより音声警報を行うと共に前記作動信号を受けて所定の遅延時間後に火災確定信号を中継器に出力し、また前記中継器より出力される作動信号を受信していない状態で前記住棟用受信機より出力される地区音響制御信号及び音声警報信号の夫々を予め設定された第１の検出時間を超えることで検出した場合には、前記住棟用受信機より出力される音声警報信号を自己のスピーカから出力する住戸用受信機と、
該住戸用受信機側から送られてくる音声警報信号を出力するスピーカを備えた戸外表示器とを備えた共同用住宅用火災報知システムにあって、
前記火災感知器の遠隔作動試験を含む住戸点検時に前記中継器に接続し、試験開始操作を行った場合に前記中継器を介して前記住戸用受信機に試験中信号を出力し、前記火災感知器の試験が正常に終了した場合に前記中継器に試験正常終了信号を前記住戸用受信機が地区音響制御信号及び音声警報信号の夫々を検出する第１の検出時間より短い時間で出力する回路部を設けた外部試験器を有し、
前記中継器に、前記外部試験器より試験中信号を受けた場合に前記感知器回線を住戸用受信機側から外部試験器側に切換え接続して外部試験器からの前記火災感知器の遠隔作動試験を可能とし、試験正常終了信号を受けた場合に、試験正常終了信号の出力時間程度だけ前記住戸用受信機に作動信号を出力し、該作動信号を出力した後前記住戸用受信機より火災確定信号を受けた場合に、該火災確定信号の出力時間程度だけ前記住棟用受信機に火災信号を出力する回路部を設け、
前記住棟用受信機は、前記中継器から送られる火災信号を保持しない試験復旧モードと人間には聞こえない又は聞こえ難い疑似音声信号を出力する点検モードを備え、住戸点検時に該試験復旧モードと点検モードが設定されている状態では、前記中継器より火災信号が出力されている時間程度だけ地区音響制御信号及び音声警報信号に代えて疑似音声信号を出力し、
前記住戸用受信機に、前記中継器経由で前記外部試験器からの試験中信号を受けることで、地区音響制御信号及び音声警報信号の夫々を検出する第１の検出時間を前記外部試験器より出力される試験正常終了信号の出力時間より短い第２の検出時間に変更、自己のスピーカによる音声警報及び前記遅延時間による遅延動作を禁止して、
該試験中信号を受けている状態で前記中継器より作動信号を受けた場合に、音声警報を行わず、直ちに前記中継器に火災確定信号を作動信号の出力時間程度だけ出力するようにし、
前記第２の検出時間への変更後、試験復旧モード及び点検モードが設定された前記住棟用受信機より出力される地区音響制御信号及び疑似音声信号を検出することで、自己の音源で生成した音声警報信号を前記戸外表示器のスピーカから出力させる回路部を設けたことを特徴とする共同住宅用火災報知システム。The fire signal is received by receiving the fire signal provided in the center of the manager's room, etc., and the district acoustic control signal and the sound alarm signal are output to the fire-breaking unit and its neighboring units only while the fire signal is held. A receiver for a residential building,
Provided for each dwelling unit,
A fire detector,
A relay that connects the fire detector via a detector line and outputs a fire signal to the receiver for the residential building when a fire confirmation signal is received;
When the repeater receives an activation signal that is output when the fire detector detects a fire alarm, it issues a sound alarm by its own speaker and receives the activation signal and fire confirmation signal after a predetermined delay time. Each of the district sound control signal and the sound alarm signal output from the dwelling receiver in a state where the operation signal output from the repeater is not received is set in advance. When it is detected by exceeding the first detection time, a receiver for dwelling unit that outputs a sound alarm signal output from the receiver for the dwelling unit from its own speaker;
In a fire alarm system for a shared house comprising an outdoor indicator equipped with a speaker that outputs a sound alarm signal sent from the receiver for the dwelling unit,
Connected to the repeater during inspection including a remote operation test of the fire detector, and when a test start operation is performed, outputs a signal under test to the receiver for the dwelling unit via the repeater, and the fire detection A circuit that outputs a test normal end signal to the repeater in a time shorter than a first detection time in which the dwelling unit receiver detects each of the district acoustic control signal and the audio warning signal when the test of the tester is completed normally An external tester with a section,
Remote operation of the fire detector from the external tester by switching and connecting the sensor line from the receiver side for the dwelling unit to the external tester side when receiving a test signal from the external tester to the repeater When a test is possible and a test normal end signal is received, an operation signal is output to the dwelling unit receiver for about the output time of the test normal end signal, and after the operation signal is output, a fire occurs from the dwelling unit receiver When a confirmation signal is received, a circuit unit is provided that outputs a fire signal to the receiver for the residential building only for the output time of the fire confirmation signal,
The residential building receiver has a test recovery mode that does not hold a fire signal sent from the repeater and an inspection mode that outputs a pseudo audio signal that is inaudible or difficult to hear for humans, and the test recovery mode is used when checking a dwelling unit. In the state where the inspection mode is set, a pseudo sound signal is output instead of the district sound control signal and the sound warning signal only for the time when the fire signal is output from the repeater,
A first detection time for detecting each of the district acoustic control signal and the voice alarm signal is received from the external tester by receiving a signal under test from the external tester via the repeater to the receiver for dwelling unit. Change to the second detection time shorter than the output time of the test normal end signal to be output, prohibit the voice alarm by its own speaker and the delay operation by the delay time,
When an operation signal is received from the repeater while receiving the signal during the test, a fire confirmation signal is immediately output to the repeater for about the output time of the operation signal without performing a sound alarm,
After the change to the second detection time, by detecting the district sound control signal and the pseudo sound signal output from the receiver for the residential building in which the test restoration mode and the inspection mode are set, A fire alarm system for an apartment house, comprising a circuit unit for outputting the generated voice alarm signal from a speaker of the outdoor display.
JP18733898A 1998-07-02 1998-07-02 Fire alarm system for apartment houses Expired - Lifetime JP3863667B2 (en)

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