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JP4042751B2 - Fire alarm system - Google Patents
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JP4042751B2 - Fire alarm system - Google Patents

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JP4042751B2
JP4042751B2 JP2005047588A JP2005047588A JP4042751B2 JP 4042751 B2 JP4042751 B2 JP 4042751B2 JP 2005047588 A JP2005047588 A JP 2005047588A JP 2005047588 A JP2005047588 A JP 2005047588A JP 4042751 B2 JP4042751 B2 JP 4042751B2
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alarm
fire
signal
output
interlocking
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JP2006235854A (en
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剛嗣 和田
泰幸 川野
智博 吉鶴
秀晃 高橋
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Description

本発明は、それぞれに火災検知部を有した複数の火災警報器を並列に接続して構成され
た火災警報システムの改良に関する。
The present invention relates to an improvement of a fire alarm system configured by connecting a plurality of fire alarms each having a fire detection unit in parallel.

従来から、それぞれの火災検知部を有した複数の火災警報器を互いに信号線で並列に接続し、いずれかの火災警報器が煙、熱などの火災要因を感知したときには、警報を出力しつつ他の火災警報器に連動警報信号を送信して連動警報を出力させる共に、各火災警報器が連動警報信号の送信を停止可能とする構成の火災警報システムは知られている(例えば、特許文献1)。   Conventionally, multiple fire alarms with their respective fire detectors are connected in parallel with each other via signal lines, and when any fire alarm detects a fire factor such as smoke or heat, it outputs an alarm. A fire alarm system configured to transmit a linked alarm signal to another fire alarm device to output a linked alarm and to enable each fire alarm device to stop transmitting the linked alarm signal is known (for example, patent document) 1).

このようなシステムでは、1台の火災警報器が火災要因を感知したときには直ぐに警報が出力され、かつ他の火災警報器も同時に連動警報を出力する構成となっていた。
実開2003−44955号公報
In such a system, when one fire alarm detects a fire factor, an alarm is immediately output, and other fire alarms simultaneously output a linked alarm.
Japanese Utility Model Publication No. 2003-44955

しかしながら、上記の火災警報システムでは、調理中の煙等による誤報時においてもシステム全体の火災警報器が連動警報を出力することなり、連動警報を出力している火災警報器がある部屋にいる人を不必要に驚かせたり、誤って避難させてしまうという不具合があった。   However, in the above fire alarm system, even if there is a false alarm due to smoke during cooking, the fire alarm of the entire system will output an interlocking alarm, and people in the room with the fire alarm that is outputting the interlocking alarm The problem was that they were surprised unnecessarily, or accidentally evacuated.

そこで、本願発明は、誤報時において火災要因を感知して警報を出力している火災警報器の傍にいる人が、他の火災警報器が連動警報を出力する前に対処して、連動警報の出力を防止することが可能な火災警報システムを提供するものである。   Therefore, the invention of the present application deals with a person in the vicinity of a fire alarm device that detects a fire factor and outputs an alarm at the time of a false alarm, before another fire alarm device outputs an interlock alarm, It is intended to provide a fire alarm system that can prevent the output of.

上記課題を解決するために、本願発明の火災警報システムは、それぞれの火災検知部を有した複数の火災警報器を互いに信号線で並列に接続し、いずれかの火災警報器が煙、熱などの火災要因を感知したときには、警報を出力しつつ他の火災警報器に連動警報信号を送信して連動警報を出力させると共に、各火災警報器が連動警報信号の送信を停止可能とする火災警報システムにおいて、連動警報信号を受信した火災警報器が、所定時間の間に連動警報信号を送信され続けた場合に連動警報の出力を開始することで、火災要因を感知した火災警報器による警報の出力よりも所定時間遅れて連動警報を出力するように成したものである。 In order to solve the above problems, a fire alarm system according to the present invention connects a plurality of fire alarms each having a fire detection unit in parallel with each other via a signal line, and any one of the fire alarms is smoke, heat, etc. When a fire factor is detected, a fire alarm that outputs an interlocking alarm signal to another fire alarm while outputting an alarm to output the interlocking alarm, and each fire alarm can stop transmitting the interlocking alarm signal In the system, when the fire alarm device that has received the interlocking alarm signal continues to transmit the interlocking alarm signal for a predetermined time, it starts the output of the interlocking alarm so that the fire alarm that detects the fire factor The interlocking alarm is output after a predetermined time delay from the output.

本願発明の火災警報システムにおいては、連動警報信号を受信した火災警報器が、火災要因を感知した火災警報器による警報の出力よりも所定時間遅れて連動警報を出力するように成しているので、誤報時において火災要因を感知して警報を出力している火災警報器の傍にいる人が、他の火災警報器が連動警報を出力する前に対処して、連動警報の出力を防止することができるものである。   In the fire alarm system of the present invention, the fire alarm device that has received the interlock alarm signal outputs the interlock alarm with a delay of a predetermined time from the alarm output by the fire alarm device that has detected the fire factor. In the event of a false alarm, a person at the side of the fire alarm that detects the cause of the fire and outputs an alarm responds before another fire alarm outputs an interlocking alarm to prevent the output of the interlocking alarm. It is something that can be done.

図1は、本願発明の請求項1および2に対応した実施形態の火災警報システム5の概略構成図を、図2は図1の火災警報器1のシステム構成図を、図3は図2の制御電圧出力部11の回路図を、図4は図1の火災警報器1の動作を説明するフローチャート図を、図5は図1の火災警報器1の動作を説明するタイムチャート図を、示している。この実施形態で用いる火災警報システム5は、それぞれの火災検知部を有した複数の火災警報器1を互いに信号線Lで並列に接続し、いずれかの火災警報器1が煙、熱などの火災要因を感知したときには、警報を出力しつつ他の火災警報器1に連動警報信号を送信して連動警報を出力させると共に、各火災警報器1が連動警報信号の送信を停止可能とする火災警報システム5において、連動警報信号を受信した火災警報器1が、火災要因を感知した火災警報器1による警報の出力よりも所定時間T遅れて連動警報を出力するように成したものである。   FIG. 1 is a schematic configuration diagram of a fire alarm system 5 according to an embodiment corresponding to claims 1 and 2 of the present invention, FIG. 2 is a system configuration diagram of the fire alarm device 1 of FIG. 1, and FIG. 4 is a circuit diagram of the control voltage output unit 11, FIG. 4 is a flowchart for explaining the operation of the fire alarm device 1 of FIG. 1, and FIG. 5 is a time chart for explaining the operation of the fire alarm device 1 of FIG. ing. The fire alarm system 5 used in this embodiment connects a plurality of fire alarms 1 having respective fire detection units in parallel with each other by signal lines L, and any one of the fire alarms 1 fires such as smoke or heat. When a factor is detected, a fire alarm that outputs an interlocking alarm signal to another fire alarm 1 while outputting an alarm to output the interlocking alarm, and enables each fire alarm 1 to stop transmitting the interlocking alarm signal In the system 5, the fire alarm device 1 that has received the interlock alarm signal outputs the interlock alarm with a delay of a predetermined time T from the output of the alarm by the fire alarm device 1 that has detected the fire factor.

又、この実施形態の火災警報システム5は、連動警報を受信した火災警報器1が、前記所定時間Tを計時するタイマ12Aを備えたものである。   In the fire alarm system 5 of this embodiment, the fire alarm device 1 that has received the interlocking alarm includes a timer 12A that measures the predetermined time T.

以下、この実施形態の火災警報システム5を、より具体的に説明する。この火災警報システム5は、商用電源で作動する火災警報器1を、信号線Lに対して、複数個、並列に接続することにより構成されているものである。そして、各々の火災警報器1は、煙、熱などの火災要因を検出する機能を備えて、各々の火災警報器1が火災要因を検知したときには、この火災警報器1は警報音等の警報を出力する。これとともに、信号線Lに対して、連動警報信号を出力して、他のすべての火災警報器1が連動警報を出力させるものである。そして、この連動警報の出力も、火災警報出力と同じように警報音等を出力するものである。   Hereinafter, the fire alarm system 5 of this embodiment will be described more specifically. This fire alarm system 5 is configured by connecting a plurality of fire alarms 1 that are operated by a commercial power source, in parallel to a signal line L. Each fire alarm 1 has a function of detecting a fire factor such as smoke and heat, and when each fire alarm 1 detects a fire factor, the fire alarm 1 detects an alarm such as an alarm sound. Is output. At the same time, an interlocking alarm signal is output to the signal line L, and all other fire alarm devices 1 output interlocking alarms. And the output of this interlocking alarm outputs alarm sound etc. similarly to the fire alarm output.

各々の火災警報器1は、図2に示すような内部構成をしている。すなわち、商用電源を受け、作動電源を生成する電源回路10と、通常監視信号または連動警報信号のいずれかを電圧として出力する制御電圧出力部と、タイマ12Aを有してこの火災警報器1を制御する制御部12と、煙、熱などの火災要因を検出する火災検知部13と、信号線Lを監視して、その電圧レベルを判別する制御電圧監視部14と、制御部12による制御により警報音などによる警報または連動警報の出力を行う警報回路15と、警報停止釦16Aを有し、この火災警報器1の警報の出力及び連動警報信号の送信を停止させるための警報停止回路16と、を備えているものである。   Each fire alarm 1 has an internal configuration as shown in FIG. That is, a power supply circuit 10 that receives a commercial power supply and generates an operating power supply, a control voltage output unit that outputs either a normal monitoring signal or an interlocking alarm signal as a voltage, and a timer 12A, the fire alarm 1 is provided. The control unit 12 for controlling, the fire detection unit 13 for detecting fire factors such as smoke and heat, the control voltage monitoring unit 14 for monitoring the signal line L and determining the voltage level, and the control by the control unit 12 An alarm circuit 15 for outputting an alarm by an alarm sound or an interlocking alarm, and an alarm stop circuit 16 having an alarm stop button 16A for stopping the alarm output of the fire alarm device 1 and the transmission of the interlocking alarm signal; , Is provided.

図3は、制御電圧出力部11の具体的な構成例を示している。   FIG. 3 shows a specific configuration example of the control voltage output unit 11.

この制御電圧出力部11では、電源回路10で生成された電源電圧Vを抵抗器RとダイオードDとで整流した電圧を、以下の処理により変圧し、その変圧電圧を、通常監視信号の電圧V1、連動警報信号の電圧V2として端子T1,2に出力する。すなわち、制御部12より連動警報信号の出力指示(連動警報信号の出力指示)により作動するスイッチング回路Trは、ツエナーダイオードZD1,2の双方のツエナー電圧により、端子T1,2間の電圧を低下させ、端子T1,2間の電位差をV2とする。これにより、信号線Lには、連動警報信号の電圧V2が出力されることとなる。   In this control voltage output unit 11, a voltage obtained by rectifying the power supply voltage V generated by the power supply circuit 10 using the resistor R and the diode D is transformed by the following processing, and the transformed voltage is converted into the voltage V1 of the normal monitoring signal. , Output to the terminals T1, 2 as the voltage V2 of the interlocking alarm signal. In other words, the switching circuit Tr that operates in response to the interlock alarm signal output instruction (interlock alarm signal output instruction) from the control unit 12 reduces the voltage between the terminals T1 and T2 by the Zener voltage of both Zener diodes ZD1 and ZD2. The potential difference between the terminals T1 and T2 is V2. As a result, the voltage V2 of the interlocking alarm signal is output to the signal line L.

次に、このような構成の特徴的な処理について、図4のフローチャート図とともに説明す
る。すなわち、火災警報器1は、火災要因を検出すれば、自身で警報を出力し、他の火災警報器1に連動警報信号を送信する(100〜102)。その後、警報停止釦16Aの操作がなされたなら、警報を停止し、他の火災警報器1に通常監視信号を送信するように動作する(103〜105)。
Next, characteristic processing of such a configuration will be described with reference to the flowchart of FIG. That is, if the fire alarm device 1 detects a fire factor, the fire alarm device 1 outputs an alarm by itself and transmits an interlocking alarm signal to other fire alarm devices 1 (100 to 102). Thereafter, if the operation of the alarm stop button 16A is performed, the alarm is stopped and an operation is performed to transmit a normal monitoring signal to the other fire alarm devices 1 (103 to 105).

一方、自身が火災要因を検出していないときで、他の火災警報器1から連動警報信号が出力されているのを判別したときには(106)、以下のように動作する。   On the other hand, when it is determined that the fire alarm is not detected and it is determined that the interlock alarm signal is output from the other fire alarm device 1 (106), the following operation is performed.

すなわち、制御部12のタイマ12Aを10秒から30秒程度の間の所定時間T起動させ、その所定時間Tの間に連動警報信号が送信され続けることを監視する(107〜109)。そして、連動警報信号が送信され続けられた場合には、連動警報の出力を開始し(110)、ステップ100に移行する。また、連動警報信号が送信され続けられなかった場合には、警報停止釦16Aの操作がなされたと判断して連動警報の出力を開始することなく、ステップ100に移行する。なお、このとき自身が連動警報の出力を行っている場合には、連動警報を停止して(111)から、ステップ100に移行するものとなっている。   That is, the timer 12A of the control unit 12 is started for a predetermined time T between about 10 seconds and about 30 seconds, and it is monitored that the interlocking alarm signal is continuously transmitted during the predetermined time T (107 to 109). If the interlock alarm signal continues to be transmitted, output of the interlock alarm is started (110), and the process proceeds to step 100. If the interlock alarm signal is not continuously transmitted, it is determined that the alarm stop button 16A has been operated, and the process proceeds to step 100 without starting the output of the interlock alarm. At this time, if the device itself outputs the interlocking alarm, the interlocking alarm is stopped (111), and the process proceeds to step 100.

さらに、自身が火災要因を検出していないときで、他の火災警報器1 から連動警報信号が出力されていないときには、自身が連動警報の出力を行っている場合には連動警報を停止し( 1 1 1 )から、自身が連動警報の出力を行っていない場合にはそのまま、ステップ1 0 0 に移行するものとなっている。 Furthermore, when the fire alarm is not detected by itself and the interlock alarm signal is not output from the other fire alarm 1, the interlock alarm is stopped when the self alarm is output ( If 1 1 1) has not output the interlocking alarm, the process proceeds to step 1 0 0 as it is.

このようなフローチャートの処理における信号線L上の電圧レベル及び警報の出力、連動警報の出力推移を図5(a)(b)に示す。なお、通常状態のおいては、端子T1,2間の電圧は通常監視信号の電圧V1となっているものである。   FIGS. 5A and 5B show the voltage level on the signal line L, the output of the alarm, and the output transition of the interlocking alarm in the processing of such a flowchart. In the normal state, the voltage between the terminals T1 and T2 is the voltage V1 of the normal monitoring signal.

いま、ある火災警報器1 が火災要因を検出したときには、図5 ( a ) に示すように、その火災警報器1 からは、警報が出力されるのとほぼ同時に連動警報信号の電圧V 2 が信号線L に出力されるので、信号線L の電圧値はV 2 となる。そして、この連動警報信号を受信した他の火災警報器1 は、所定時間Tの間信号線L に連動警報信号の電圧V 2 が送信され続けられた後に、連動警報を出力するものなっている。 Now, when a certain fire alarm device 1 detects a fire factor, as shown in FIG. 5 (a), the fire alarm device 1 generates the voltage V 2 of the interlocking alarm signal almost simultaneously with the output of the alarm. Since the signal is output to the signal line L 1, the voltage value of the signal line L 1 is V 2. Then, the another fire alarm device 1 which has received the linked alarm signal, after the voltage V 2 of the linked alarm signal between the signal line L of the predetermined time T has been continued to be transmitted, so as to output the linked alarm Yes.

また、図5 ( b ) に示すように、この所定時間Tの間に警報停止釦1 6 A が操作されて、信号線L の電圧値が監視信号の電圧V 1 に戻った場合には、他の火災警報器1 は連動警報を出力せずに、火災要因および信号線L の電圧値の監視を継続して行うものとなっている。 Further, as shown in FIG. 5B, when the alarm stop button 16 A is operated during the predetermined time T and the voltage value of the signal line L returns to the monitor signal voltage V 1, Other fire alarms 1 continue to monitor fire factors and the voltage value of the signal line L without outputting an interlocking alarm.

以上の構成を備えることにより、この実施形態で用いる火災警報システム5 は、それぞれの火災検知部を有した複数の火災警報器1 を互いに信号線L で並列に接続し、いずれかの火災警報器1 が煙、熱などの火災要因を感知したときには、警報を出力しつつ他の火災警報器1 に連動警報信号を送信して連動警報を出力させると共に、各火災警報器1 が連動警報信号の送信を停止可能とする火災警報システム5 において、連動警報信号を受信した火災警報器1 が、火災要因を感知した火災警報器1 による警報の出力よりも所定時間T遅れて連動警報を出力するように成しているので、誤報時において火災要因を感知した火災警報器の傍にいる人が、他の火災警報器1 が連動警報を出力する前に対処して、連動警報の出力を防止することが可能なものとなっている。
By providing the above configuration, the fire alarm system 5 used in this embodiment connects a plurality of fire alarms 1 having respective fire detection units in parallel with each other through a signal line L 1, and any one of the fire alarm devices When 1 detects a fire factor such as smoke or heat, it sends an interlocking alarm signal to other fire alarms 1 while outputting an alarm to output the interlocking alarm, and each fire alarm 1 In the fire alarm system 5 in which transmission can be stopped, the fire alarm device 1 that has received the interlock alarm signal outputs an interlock alarm after a predetermined time T delay from the alarm output by the fire alarm device 1 that has detected the fire factor. Therefore, the person next to the fire alarm that detected the fire factor at the time of misreporting will take action before the other fire alarm 1 outputs the interlock alarm to prevent the output of the interlock alarm. Can And it has a capacity ones.

又、この実施形態で用いる火災警報システム5は、連動警報を受信した火災警報器1が、前記所定時間Tを計時するタイマ12Aを備えたものであるので、火災要因を感知した火災警報器1が連動警報信号を送信するのを所定時間T待ってから行うときと比較して、火災要因を感知したら直ぐに連動警報信号を送信するので、火災警報器1が感知した履歴を警報監視盤等の外部の装置に残すことができるものとなっている。   In addition, the fire alarm system 5 used in this embodiment includes the timer 12A that measures the predetermined time T because the fire alarm 1 that has received the interlocking alarm includes the fire alarm 1 that senses a fire factor. Compared to when the fire alarm is sent after waiting for a predetermined time T, the interlock alarm signal is sent as soon as a fire factor is detected. It can be left in an external device.

本願発明の実施形態に係る火災警報システムの概略構成図。1 is a schematic configuration diagram of a fire alarm system according to an embodiment of the present invention. 図1の火災警報器のシステム構成図。The system block diagram of the fire alarm of FIG. 図2の制御電圧出力部の回路図。FIG. 3 is a circuit diagram of a control voltage output unit in FIG. 2. 図2の火災警報器の動作を説明するフローチャート図。The flowchart figure explaining operation | movement of the fire alarm of FIG. 図2の火災警報器の動作を説明する(a)警報停止釦の操作有時の(b)警報停止釦の操作無時のタイムチャート図。The operation of the fire alarm device of FIG. 2 is explained. (A) When the alarm stop button is operated (b) Time chart when the alarm stop button is not operated.

符号の説明Explanation of symbols

1 火災警報器
5 火災警報システム
10 電源回路
11 制御電圧出力部
12 制御部
12A タイマ
13 火災検知部
14 制御電圧監視部
15 警報回路
16 警報停止回路
16A 警報停止釦
T 所定時間
L 信号線
DESCRIPTION OF SYMBOLS 1 Fire alarm 5 Fire alarm system 10 Power supply circuit 11 Control voltage output part 12 Control part 12A Timer 13 Fire detection part 14 Control voltage monitoring part 15 Alarm circuit 16 Alarm stop circuit 16A Alarm stop button
T Predetermined time
L signal line

Claims (2)

それぞれの火災検知部を有した複数の火災警報器を互いに信号線で並列に接続し、いずれかの火災警報器が煙、熱などの火災要因を感知したときには、警報を出力しつつ他の火災警報器に連動警報信号を送信して連動警報を出力させると共に、各火災警報器が連動警報信号の送信を停止可能とする火災警報システムにおいて、
連動警報信号を受信した火災警報器が、所定時間の間に連動警報信号を送信され続けた場合に連動警報の出力を開始することで、火災要因を感知した火災警報器による警報の出力よりも所定時間遅れて連動警報を出力するように成したことを特徴とする火災警報システム。
Connect multiple fire alarms with their own fire detectors in parallel with each other via signal lines, and when one of the fire alarms detects a fire factor such as smoke or heat, it outputs another alarm while outputting an alarm. In the fire alarm system that sends the interlock alarm signal to the alarm device and outputs the interlock alarm, and each fire alarm device can stop the transmission of the interlock alarm signal,
When the fire alarm that has received the interlocking alarm signal continues to transmit the interlocking alarm signal for a predetermined time, it starts outputting the interlocking alarm, so that the fire alarm that detects the fire factor will output more than the alarm output. A fire alarm system characterized by outputting an interlocking alarm with a delay of a predetermined time.
複数の火災警報器は、連動警報信号を電圧として前記信号線に出力する制御電圧出力部と、前記信号線の電圧レベルを監視する制御電圧監視部とを備えており、制御電圧監視部において連動警報信号の電圧が出力されているのを判別した火災警報器が、この連動警報信号が所定時間の間送信され続けたことを監視した場合に連動警報を出力するように成したことを特徴とする請求項1記載の火災警報システム。 The plurality of fire alarms includes a control voltage output unit that outputs an interlocking alarm signal as a voltage to the signal line, and a control voltage monitoring unit that monitors the voltage level of the signal line. The fire alarm that has determined that the voltage of the alarm signal has been output is configured to output an interlocking alarm when monitoring that the interlocking alarm signal has been transmitted for a predetermined time. The fire alarm system according to claim 1.
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CN103578216A (en) * 2012-07-26 2014-02-12 能美防灾株式会社 Fire detection system

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JP4821581B2 (en) * 2006-11-27 2011-11-24 パナソニック電工株式会社 Linked alarm type fire alarm
JP5122874B2 (en) * 2007-06-22 2013-01-16 ホーチキ株式会社 Residential fire alarm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103578216A (en) * 2012-07-26 2014-02-12 能美防灾株式会社 Fire detection system
CN103578216B (en) * 2012-07-26 2018-01-02 能美防灾株式会社 Fire detecting system

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