JPH05274580A - Disaster preventing system - Google Patents
Disaster preventing systemInfo
- Publication number
- JPH05274580A JPH05274580A JP4067948A JP6794892A JPH05274580A JP H05274580 A JPH05274580 A JP H05274580A JP 4067948 A JP4067948 A JP 4067948A JP 6794892 A JP6794892 A JP 6794892A JP H05274580 A JPH05274580 A JP H05274580A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- wireless
- sensor
- receiver
- fire receiver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002265 prevention Effects 0.000 claims description 20
- 230000002950 deficient Effects 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 10
- 238000001514 detection method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000013256 coordination polymer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Alarm Systems (AREA)
- Fire Alarms (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、感知器の発報信号を有
線で中継する有線防災システムと、感知器の発報信号を
無線で中継する無線防災システムの両方に利用可能な防
災システムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disaster prevention system which can be used both as a wired disaster prevention system for relaying a sensor alarm signal by wire and as a wireless disaster prevention system for wirelessly relaying a sensor alarm signal. ..
【０００２】[0002]
【従来の技術】一般に、感知器の発報信号を無線で中継
する無線防災システムでは、有線防災システムにおいて
感知器と中継器を接続するためのいわゆるＬ（ライン）
−Ｃ（コモン）ラインと呼ばれる配線を省略することが
できるので、配設工事を簡略化することができるが、有
線防災システムにおいても無線が一部的に用いられるこ
とがある。2. Description of the Related Art Generally, in a wireless disaster prevention system for wirelessly relaying an alarm signal of a sensor, a so-called L (line) for connecting the sensor and the relay in a wired disaster prevention system.
Since wiring called -C (common) line can be omitted, the installation work can be simplified, but wireless may be partially used in the wired disaster prevention system.
【０００３】図２は、ビルに配設された一般的な有線防
災システムを示す。ビルの各階の監視エリア毎に１また
は複数の感知器１が配設され、１つの監視エリアには、
１または複数の感知器１からの発報信号を火災受信機３
に中継するための中継器２が配設される。この中継器２
は例えば機器収納箱や消火栓ボックス等内に配設され、
この中継器２からＬ−Ｃラインが引き出されてそのエリ
アの感知器１に接続される。そして、中継器２から感知
器１に対して電圧がこのＬ−Ｃラインを介して印加さ
れ、感知器１は、火災を検出するとこの印加電圧をオン
にすることにより発報信号を中継器２に送出する。各エ
リアの中継器２はまた、並列に火災受信機３に接続さ
れ、したがって、この中継器２により中継された発報信
号により、火災受信機３の場所においてどのエリアに火
災が発生したかを知得することができる。FIG. 2 shows a general wired disaster prevention system installed in a building. One or a plurality of sensors 1 are arranged in each monitoring area on each floor of the building, and one monitoring area is
The fire alarm signal from the alarm signal from one or more detectors 3
A repeater 2 for relaying to is provided. This repeater 2
Is installed in, for example, a device storage box or a fire hydrant box,
The L-C line is extracted from the repeater 2 and connected to the sensor 1 in the area. Then, a voltage is applied from the repeater 2 to the detector 1 through the L-C line, and when the detector 1 detects a fire, the detector 1 turns on the applied voltage to send an alarm signal to the repeater 2 To send to. The relays 2 in each area are also connected in parallel to the fire receiver 3, so that the warning signal relayed by this relay 2 determines in which area the fire occurred at the location of the fire receiver 3. You can learn.
【０００４】図３は、同一の監視エリアに配設された複
数の感知器１ａ，１ｂ，・・・の回路構成を示す。感知
器１ａ，１ｂ，・・・はＬ−Ｃラインに並列に接続さ
れ、このＬ−Ｃラインには中継器２から電圧が印加され
るとともに、Ｌ−Ｃラインの終端には終端抵抗Ｒが接続
されている。このような回路構成において感知器１ａ，
１ｂ，・・・の少なくとも１つが火災を感知して回路を
閉じると、発報信号が生成されて中継器２を介して火災
受信機３に送出される。中継器２はまた、終端抵抗Ｒに
対する印加電圧を測定することにより感知器１ａ，１
ｂ，・・・の断線等の障害を検出し、火災受信機３に障
害信号を送出する。FIG. 3 shows a circuit configuration of a plurality of sensors 1a, 1b, ... Arranged in the same monitoring area. The sensors 1a, 1b, ... Are connected in parallel to the L-C line, a voltage is applied to the L-C line from the repeater 2, and a terminating resistor R is provided at the end of the L-C line. It is connected. In such a circuit configuration, the sensor 1a,
When at least one of 1b, ... Detects a fire and closes the circuit, a warning signal is generated and sent to the fire receiver 3 via the repeater 2. The repeater 2 also measures the applied voltage to the terminating resistor R to detect the sensors 1a, 1a.
A failure such as a disconnection of b, ... Is detected and a failure signal is sent to the fire receiver 3.
【０００５】このような有線防災システムにおいて、あ
るエリアにおいて内装工事等が行われる場合であって、
そのエリアの感知器１と中継器２の間のＬ−Ｃラインが
切断される場合には、そのエリアが無警戒エリアとな
る。そこで、感知器１の発報信号を無線で送出する無線
送信機と、この無線送信機からの発報信号を受信して火
災受信機３に中継するための無線受信中継器が用いられ
る。[0005] In such a wired disaster prevention system, when the interior work is performed in a certain area,
When the L-C line between the sensor 1 and the repeater 2 in the area is disconnected, the area becomes a non-warning area. Therefore, a wireless transmitter that wirelessly sends an alarm signal from the sensor 1 and a wireless reception repeater that receives the alarm signal from the wireless transmitter and relays the alarm signal to the fire receiver 3 are used.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記有
線の防災システムでは、Ｌ−Ｃラインの終端に接続され
た終端抵抗Ｒにより断線等の障害を検出しているので、
感知器１の発報信号を火災受信機３に中継するための無
線送信機と無線受信中継器を配設した場合に、感知器１
と無線送信機との間の断線のような障害、例えば無線送
信機が故障し、電波が出力できないような障害を火災受
信機３に送出することができない問題点がある。However, in the above wired disaster prevention system, a failure such as disconnection is detected by the terminating resistor R connected to the end of the LC line.
When a wireless transmitter and a wireless reception repeater for relaying the alarm signal of the detector 1 to the fire receiver 3 are provided, the detector 1
There is a problem that it is not possible to send to the fire receiver 3 a failure such as a disconnection between the wireless receiver and the wireless receiver, for example, a failure that the wireless transmitter fails and radio waves cannot be output.
【０００７】本発明は上記従来の問題点に鑑み、感知器
の発報信号を火災受信機に中継するための無線送信機と
無線受信中継器を配設した場合に、感知器と無線送信機
との間の断線のような障害を火災受信機に送出すること
ができる防災システムを提供することを目的とする。In view of the above-mentioned conventional problems, the present invention provides a sensor and a wireless transmitter when a wireless transmitter and a wireless reception repeater for relaying an alarm signal of the sensor to a fire receiver are provided. It is an object of the present invention to provide a disaster prevention system that can send an obstacle such as a disconnection between a fire receiver and a fire receiver.
【０００８】[0008]
【課題を解決するための手段】本発明は上記目的を達成
するために、感知器の発報信号を無線で送出するととも
に、感知器の障害を検出して障害信号を無線で送出する
無線送信機と、前記無線送信機からの発報信号、障害信
号を受信してそれぞれ発報信号、障害信号を有線で送出
する無線受信中継器と、前記無線受信中継器に電圧を印
加して印加電圧のオンまたはオフにより、前記無線受信
中継器からの発報信号と障害を検出する火災受信機とを
備え、前記無線受信中継器は、前記無線受信機からの発
報信号により前記火災受信機からの印加電圧をオンまた
はオフにすることにより発報信号を前記火災受信機に送
出し、前記印加電圧に対して終端抵抗が接続され、前記
無線送信機からの障害信号を受信した場合に前記終端抵
抗を切り離すことにより障害信号を送出することを特徴
とする。In order to achieve the above-mentioned object, the present invention wirelessly transmits an alarm signal of a sensor and wirelessly transmits a fault signal by detecting a failure of the sensor. Device, a wireless reception repeater for receiving a warning signal and a failure signal from the wireless transmitter and sending a warning signal and a failure signal respectively by wire, and an applied voltage for applying a voltage to the wireless reception repeater. By turning on or off, a fire alarm signal from the wireless reception repeater and a fire receiver for detecting a failure are provided, and the wireless reception relay device is activated from the fire receiver by the warning signal from the wireless receiver. A warning signal is sent to the fire receiver by turning on or off the applied voltage of, and a termination resistor is connected to the applied voltage, and the termination is received when a fault signal from the wireless transmitter is received. Disconnecting the resistor Characterized by delivering a more fault signal.
【０００９】[0009]
【作用】本発明では上記構成により、感知器の発報信号
が無線送信機を介して無線受信中継器に送出され、火災
受信機から印加された電圧が無線受信中継器によりオン
またはオフされ、火災受信機により発報信号が検出され
る。また、感知器と無線送信機の間の断線のような障害
が無線送信機により検出されて障害信号が無線受信中継
器に送出され、終端抵抗が切り離される。したがって、
障害時には有線の防災システムにおいて感知器側におい
て接続された終端抵抗が切り離された場合と等価になる
ので、感知器の発報信号を火災受信機に無線で中継する
ための無線送信機と無線受信中継器を配設した場合に、
感知器と無線送信機との間の断線のような障害を火災受
信機に送出することができる。In the present invention, with the above configuration, the alarm signal of the sensor is sent to the wireless reception repeater via the wireless transmitter, and the voltage applied from the fire receiver is turned on or off by the wireless reception repeater. The alarm signal is detected by the fire receiver. Further, a failure such as a disconnection between the sensor and the wireless transmitter is detected by the wireless transmitter, a failure signal is sent to the wireless reception repeater, and the terminating resistor is disconnected. Therefore,
In the event of a failure, it will be equivalent to disconnecting the terminating resistor connected on the sensor side in a wired disaster prevention system. When a repeater is installed,
A fault, such as a wire break between the sensor and the wireless transmitter, can be delivered to the fire receiver.
【００１０】[0010]
【実施例】以下、図面を参照して本発明の実施例を説明
する。図１は、本発明に係る防災システムの一実施例を
示す回路図であり、図２及び図３に示す構成部材と同一
のものには同一の参照符号を付す。本実施例の無線受信
中継器１０には、火災受信機３に接続されるＬ−Ｃライ
ン用の端子と、障害検出用の端子ΩＬ、ΩＣ等が設けら
れ、障害検出用の端子ΩＬ、ΩＣには、感知器１の発報
信号を無線で中継する場合に障害検出用抵抗Ｒ２が接続
される。なお、火災受信機３は、有線の防災システムと
同様に、上記Ｌ−Ｃラインに所定の電圧を印加し、印加
電圧の変動により感知器１の発報信号と障害信号を検出
する。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a circuit diagram showing an embodiment of a disaster prevention system according to the present invention, and the same components as those shown in FIGS. 2 and 3 are designated by the same reference numerals. The wireless reception repeater 10 of this embodiment is provided with a terminal for the LC line connected to the fire receiver 3 and terminals ΩL, ΩC for failure detection, and terminals ΩL, ΩC for failure detection. A fault detection resistor R2 is connected to the sensor 1 when the alarm signal of the sensor 1 is wirelessly relayed. It should be noted that the fire receiver 3 applies a predetermined voltage to the L-C line and detects a warning signal and a failure signal of the sensor 1 based on the fluctuation of the applied voltage, as in the wired disaster prevention system.
【００１１】Ｌ−Ｃライン用の端子には、火災受信機３
に対して感知器１の発報信号を送出するためのリレー接
点ｆａ及び抵抗Ｒ１の直列回路が接続され、抵抗Ｒ１の
値は、感知器１の発報時におけるインピーダンスと同一
になる値に設定されている。また、ラインＬ側の端子
は、火災受信機３に対して障害信号を送出するためのリ
レー接点ｔａの一端に接続され、リレー接点ｔａの他端
は、障害検出用の端子ΩＬに接続されている。また、コ
モンＣ側の端子は障害検出用の端子ΩＣに短絡されてい
る。The terminal for the LC line has a fire receiver 3
Is connected to a series circuit of a relay contact fa and a resistor R1 for sending out the alarm signal of the sensor 1, and the value of the resistor R1 is set to the same value as the impedance at the time of alarm of the sensor 1. Has been done. The terminal on the line L side is connected to one end of a relay contact ta for sending a failure signal to the fire receiver 3, and the other end of the relay contact ta is connected to a failure detection terminal ΩL. There is. The terminal on the common C side is short-circuited to the failure detection terminal ΩC.
【００１２】そして、感知器１の発報信号を無線で中継
する無線送信機２１と無線受信機２２が配設された場合
には、感知器１が火災を検出すると無線送信機２１がこ
の発報信号を送出し、無線受信機２２がこの無線信号を
受信して中継器１０のＣＰＵ１１に対して発報信号を有
線で送出する。無線送信機２１はまた、感知器１との接
続状態や、例えば２時間に１回のように正常状態を示す
定期情報を送信し、無線受信機２２はこの定期情報を受
信すると有線でＣＰＵ１１に通知する。When a wireless transmitter 21 and a wireless receiver 22 which wirelessly relay the alarm signal of the sensor 1 are provided, when the sensor 1 detects a fire, the wireless transmitter 21 sends this alarm. The wireless receiver 22 receives the wireless signal and sends the alarm signal to the CPU 11 of the repeater 10 by wire. The wireless transmitter 21 also transmits regular information indicating a connection state with the sensor 1 or a normal state, for example, once every two hours, and when the wireless receiver 22 receives this regular information, the wireless receiver 22 is wired to the CPU 11. Notice.
【００１３】ＣＰＵ１１は、例えばトランジスタのよう
なスイッチＳＷ１、ＳＷ２を制御してそれぞれリレーコ
イルＦＡ、ＴＡに通電することにより、リレー接点ｆ
ａ、ｔａを短絡または開放する。なお、図示省略されて
いるが、中継器１０の電源は、ＡＣ電源と補助バッテリ
から供給され、ＣＰＵ１１はまた、補助バッテリの電圧
を監視している。無線送信機２１は当然に、バッテリに
より駆動される。The CPU 11 controls the switches SW1 and SW2 such as transistors to energize the relay coils FA and TA, respectively, so that the relay contact f
Short or open a and ta. Although not shown, the power of the relay 10 is supplied from an AC power source and an auxiliary battery, and the CPU 11 also monitors the voltage of the auxiliary battery. The wireless transmitter 21 is naturally driven by a battery.
【００１４】３１は復旧信号検出回路で、コンデンサＣ
１，抵抗Ｒ３，Ｒ４，Ｒ５、トランジスタＴｒ、復旧出
力端子ＣＴとで構成される。コンデンサＣ１はノイズ吸
収用コンデンサ、抵抗Ｒ３はトランジスタＴｒのベース
にベース電流を供給する抵抗、更に抵抗Ｒ５は保護抵
抗、抵抗Ｒ４は負荷抵抗である。ここでトランジスタＴ
ｒは、通常状態はＬＣ間の電圧を受けＯＮ状態にあり、
復旧出力端子ＣＴはＬｏ信号をＣＰＵ１１の割り込みポ
ート（図示せず）に出力している。火災受信機３からの
復旧信号、例えばＬＣラインを断線状態にすると、トラ
ンジスタＴｒがＯＦＦになり、復旧出力端子ＣＴからＨ
ｉ信号がＣＰＵ１１の割り込みポートに出力され、ＣＰ
Ｕ１１は復旧処理を行う。ＣＰＵ１１の復旧処理は、リ
レーコイルＦＡ，ＴＡの復旧や、無線受信機２２の鳴動
部や表示部（図示せず）等の復旧を行う。Reference numeral 31 is a restoration signal detection circuit, which is a capacitor C
1, a resistor R3, R4, R5, a transistor Tr, and a recovery output terminal CT. The capacitor C1 is a noise absorbing capacitor, the resistor R3 is a resistor that supplies a base current to the base of the transistor Tr, the resistor R5 is a protective resistor, and the resistor R4 is a load resistor. Where transistor T
In the normal state, r receives the voltage between LC and is in the ON state,
The recovery output terminal CT outputs the Lo signal to the interrupt port (not shown) of the CPU 11. When the recovery signal from the fire receiver 3, for example, the LC line is disconnected, the transistor Tr is turned off and the recovery output terminal CT changes to H level.
i signal is output to the interrupt port of CPU11, and CP
U11 performs recovery processing. The recovery process of the CPU 11 performs recovery of the relay coils FA and TA, and recovery of the ringing section and the display section (not shown) of the wireless receiver 22.
【００１５】つぎに、上記実施例の動作を説明する。通
常の状態では図１に示すように、リレー接点ｆａが開放
し、リレー接点ｔａが短絡するように制御され、したが
って、火災受信機３は終端抵抗Ｒ２を介して接続されて
いる。この状態において無線受信機２２が無線送信機２
１からの発報信号を受信してＣＰＵ１１に通知し、ＣＰ
Ｕ１１がリレー接点ｆａを短絡すると、Ｌ−Ｃライン用
の端子間の電圧が有線防災システムにおける感知器１の
発報時と同一になる。したがって、この無線受信中継器
１０において発報信号が生成され、火災受信機３におい
てどのエリアに火災が発生したかを知得することができ
る。Next, the operation of the above embodiment will be described. In a normal state, as shown in FIG. 1, the relay contact fa is controlled to open and the relay contact ta is controlled to be short-circuited. Therefore, the fire receiver 3 is connected via the terminating resistor R2. In this state, the wireless receiver 22 becomes the wireless transmitter 2
The alert signal from 1 is received and notified to the CPU 11, and the CP
When U11 short-circuits the relay contact fa, the voltage between the terminals for the L-C line becomes the same as when the sensor 1 in the wired disaster prevention system is issued. Therefore, an alarm signal is generated in the wireless reception repeater 10, and it is possible to know in which area in the fire receiver 3 the fire has occurred.
【００１６】また、通常の状態において無線送信機２１
の故障などにより無線受信機２２が無線送信機２１から
の例えば２時間に１回の定期情報を受信しない場合や、
感知器１との接続状態が不良の信号を受信した場合や、
ＣＰＵ１１が補助バッテリの電圧低下を検出した場合に
はＣＰＵ１１がリレー接点ｔａを開放する。したがっ
て、終端抵抗Ｒ２がＬ−Ｃラインから切り離されるの
で、火災受信機３にとって断線状態になり、火災受信機
３が障害を検出することができる。In the normal state, the wireless transmitter 21
When the wireless receiver 22 does not receive the periodical information from the wireless transmitter 21 once every two hours, for example,
If you receive a signal that the connection with the sensor 1 is bad,
When the CPU 11 detects the voltage drop of the auxiliary battery, the CPU 11 opens the relay contact ta. Therefore, since the terminating resistor R2 is disconnected from the L-C line, the fire receiver 3 is disconnected and the fire receiver 3 can detect the failure.
【００１７】尚、復旧信号検出回路３１は、リレー接点
ｆａが短絡しても、抵抗Ｒ１があることからトランジス
タＴｒはＯＮ状態、即ちＣＰＵ１１の割り込みポートは
Ｌｏ信号のままで復旧は行われない。同様に、リレー接
点ｔａが開放されてもトランジスタＴｒはＯＮ状態でＣ
ＰＵ１１は割り込み処理を行わない。復旧処理は、例え
ば誤報が生じた際、無線中継機１０のリレーコイルＦ
Ａ，ＴＡを復旧させる場合、火災受信機３側でＬＣ線を
断線状態にすることでトランジスタＴｒがＯＦＦになり
復旧出力端子ＣＴからＣＰＵ１１の割り込みポートにＨ
ｉ信号が出力され、ＣＰＵ１１は前述の復旧処理を行
う。In the restoration signal detection circuit 31, even if the relay contact fa is short-circuited, the transistor Tr is in the ON state because the resistor R1 exists, that is, the interrupt port of the CPU 11 remains the Lo signal, and the restoration is not performed. Similarly, even if the relay contact ta is opened, the transistor Tr remains ON and C
PU11 does not perform interrupt processing. The restoration process is performed by the relay coil F of the wireless relay device 10 when, for example, an error report occurs.
When recovering A and TA, the transistor Tr is turned off by disconnecting the LC line on the fire receiver 3 side, and the recovery output terminal CT is set to H to the interrupt port of the CPU 11.
The i signal is output, and the CPU 11 performs the restoration process described above.
【００１８】[0018]
【発明の効果】以上説明したように本発明によれば、感
知器の発報信号が無線送信機を介して無線受信中継器に
送出され、火災受信機から印加された電圧が無線受信中
継器によりオンまたはオフされ、火災受信機により発報
信号が検出される。また、感知器と無線送信機の間の断
線のような障害が無線送信機により検出されて障害信号
が無線受信中継器に送出され、終端抵抗が切り離され
る。したがって、障害時には有線の防災システムにおい
て感知器側において接続された終端抵抗が切り離された
場合と等価になるので、感知器の発報信号を火災受信機
に無線で中継するための無線送信機と無線受信中継器を
配設した場合に、感知器と無線送信機との間の断線のよ
うな障害を火災受信機に送出することができる。As described above, according to the present invention, the alarm signal of the sensor is sent to the wireless reception repeater via the wireless transmitter, and the voltage applied from the fire receiver is received by the wireless reception repeater. The alarm signal is detected by the fire receiver. Further, a failure such as a disconnection between the sensor and the wireless transmitter is detected by the wireless transmitter, a failure signal is sent to the wireless reception repeater, and the terminating resistor is disconnected. Therefore, in the event of a failure, it will be equivalent to the case where the terminating resistor connected on the sensor side is disconnected in the wired disaster prevention system, so a wireless transmitter for wirelessly relaying the alarm signal of the sensor to the fire receiver If a radio reception repeater is provided, a fault such as a wire break between the sensor and the radio transmitter can be delivered to the fire receiver.
【図１】本発明に係る防災システムの一実施例を示す回
路図FIG. 1 is a circuit diagram showing an embodiment of a disaster prevention system according to the present invention.
【図２】一般的な有線防災システムを示す構成図FIG. 2 is a block diagram showing a general wired disaster prevention system.
【図３】図２における終端抵抗の接続状態を示す回路図FIG. 3 is a circuit diagram showing a connection state of terminating resistors in FIG.
１：感知器 ３：火災受信機 １０：無線受信中継器 １１：ＣＰＵ（中央処理装置） ２１：無線送信機 ２２：無線受信機 ３１：復旧信号検出回路 ＦＡ，ＴＡ：リレー ｆａ，ｔａ：リレー接点 ＳＷ１，ＳＷ２：スイッチ ΩＬ，ΩＣ：終端抵抗用端子 Ｒ１〜Ｒ５：抵抗 Ｔｒ：トランジスタ 1: Sensor 3: Fire receiver 10: Wireless reception repeater 11: CPU (central processing unit) 21: Wireless transmitter 22: Wireless receiver 31: Recovery signal detection circuit FA, TA: Relay fa, ta: Relay contact SW1, SW2: Switch ΩL, ΩC: Terminal for termination resistor R1 to R5: Resistor Tr: Transistor
Claims (3)
に、感知器の障害を検出して障害信号を無線で送出する
無線送信機と、 前記無線送信機からの発報信号、障害信号を受信してそ
れぞれ発報信号、障害信号を有線で送出する無線受信中
継器と、 前記無線受信中継器に電圧を印加して印加電圧のオンま
たはオフにより、前記無線受信中継器からの発報信号と
障害を検出する火災受信機とを備え、 前記無線受信中継器は、前記無線受信機からの発報信号
により前記火災受信機からの印加電圧をオンまたはオフ
にすることにより発報信号を前記火災受信機に送出し、
前記印加電圧に対して終端抵抗が接続され、前記無線送
信機からの障害信号を受信した場合に前記終端抵抗を切
り離すことにより障害信号を送出することを特徴とする
防災システム。1. A wireless transmitter for wirelessly transmitting an alarm signal of a sensor, and wirelessly transmitting an error signal by detecting a failure of the sensor, and an alarm signal and an error signal from the wireless transmitter. Wireless reception repeater that receives a warning signal and sends out a failure signal by wire, and a signal is applied from the wireless reception repeater by applying a voltage to the wireless reception repeater to turn on or off the applied voltage. A fire receiver for detecting a signal and a fault, the wireless reception repeater outputs a warning signal by turning on or off an applied voltage from the fire receiver by a warning signal from the wireless receiver. Send to the fire receiver,
A disaster prevention system, wherein a terminating resistor is connected to the applied voltage, and when the fault signal is received from the wireless transmitter, the terminating resistor is disconnected to send the fault signal.
らの発報信号により前記火災受信機からの印加電圧をオ
ンにするための第１のリレーと、前記無線受信機からの
障害信号を受信した場合に前記終端抵抗を切り離すため
の第２のリレーを有することを特徴とする請求項１記載
の防災システム。2. The wireless reception repeater includes a first relay for turning on a voltage applied from the fire receiver in response to a warning signal from the wireless transmitter, and a failure signal from the wireless receiver. The disaster prevention system according to claim 1, further comprising a second relay for disconnecting the terminating resistor when receiving the message.
２のリレーに接続するための端子を有することを特徴と
する請求項１または２記載の防災システム。3. The disaster prevention system according to claim 1, wherein the wireless reception repeater has a terminal for connecting a terminating resistor to the second relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4067948A JP2886726B2 (en) | 1992-03-26 | 1992-03-26 | Disaster prevention system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4067948A JP2886726B2 (en) | 1992-03-26 | 1992-03-26 | Disaster prevention system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05274580A true JPH05274580A (en) | 1993-10-22 |
| JP2886726B2 JP2886726B2 (en) | 1999-04-26 |
Family
ID=13359682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4067948A Expired - Fee Related JP2886726B2 (en) | 1992-03-26 | 1992-03-26 | Disaster prevention system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2886726B2 (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002544635A (en) * | 1999-05-13 | 2002-12-24 | ハネウェル・インコーポレーテッド | Wireless control network with scheduled time slots |
| JP2010067024A (en) * | 2008-09-11 | 2010-03-25 | Hochiki Corp | Relay |
| JP2010114632A (en) * | 2008-11-06 | 2010-05-20 | Hochiki Corp | Wireless disaster prevention node |
| JP2010140390A (en) * | 2008-12-15 | 2010-06-24 | Hochiki Corp | Wireless type alarm |
| JP2010140389A (en) * | 2008-12-15 | 2010-06-24 | Hochiki Corp | Radio type alarm |
| JP2010160675A (en) * | 2009-01-08 | 2010-07-22 | Hochiki Corp | Wireless alarm |
| JP2010165147A (en) * | 2009-01-15 | 2010-07-29 | Hochiki Corp | Wireless alarm and wireless repeater |
| WO2010113306A1 (en) | 2009-04-02 | 2010-10-07 | ホーチキ株式会社 | Wireless disasters-preventing node and wireless disasters-preventing system |
| JP2010244161A (en) * | 2009-04-02 | 2010-10-28 | Hochiki Corp | Wireless disaster prevention node and wireless disaster prevention system |
| JP2010244160A (en) * | 2009-04-02 | 2010-10-28 | Hochiki Corp | Wireless disaster prevention node and wireless disaster prevention system |
| JP2011087220A (en) * | 2009-10-19 | 2011-04-28 | Hochiki Corp | Radio disaster prevention system, sensor node, radio wave relay node, and radio disaster prevention node |
| JP2011096169A (en) * | 2009-11-02 | 2011-05-12 | Hochiki Corp | Disaster monitoring system |
| JP2012048454A (en) * | 2010-08-26 | 2012-03-08 | Hochiki Corp | Relay |
| JP2013109627A (en) * | 2011-11-22 | 2013-06-06 | Nohmi Bosai Ltd | Fire alarm facility and relay using the same |
| JP2014153810A (en) * | 2013-02-06 | 2014-08-25 | Nohmi Bosai Ltd | Termination device |
| JP2015079545A (en) * | 2015-01-29 | 2015-04-23 | ホーチキ株式会社 | Receiver |
| JP2015166926A (en) * | 2014-03-03 | 2015-09-24 | パナソニックＩｐマネジメント株式会社 | Radio communication apparatus |
-
1992
- 1992-03-26 JP JP4067948A patent/JP2886726B2/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002544635A (en) * | 1999-05-13 | 2002-12-24 | ハネウェル・インコーポレーテッド | Wireless control network with scheduled time slots |
| JP2010067024A (en) * | 2008-09-11 | 2010-03-25 | Hochiki Corp | Relay |
| JP2010114632A (en) * | 2008-11-06 | 2010-05-20 | Hochiki Corp | Wireless disaster prevention node |
| JP2010140390A (en) * | 2008-12-15 | 2010-06-24 | Hochiki Corp | Wireless type alarm |
| JP2010140389A (en) * | 2008-12-15 | 2010-06-24 | Hochiki Corp | Radio type alarm |
| JP2010160675A (en) * | 2009-01-08 | 2010-07-22 | Hochiki Corp | Wireless alarm |
| JP2010165147A (en) * | 2009-01-15 | 2010-07-29 | Hochiki Corp | Wireless alarm and wireless repeater |
| JP2010244161A (en) * | 2009-04-02 | 2010-10-28 | Hochiki Corp | Wireless disaster prevention node and wireless disaster prevention system |
| WO2010113306A1 (en) | 2009-04-02 | 2010-10-07 | ホーチキ株式会社 | Wireless disasters-preventing node and wireless disasters-preventing system |
| JP2010244160A (en) * | 2009-04-02 | 2010-10-28 | Hochiki Corp | Wireless disaster prevention node and wireless disaster prevention system |
| JP2011087220A (en) * | 2009-10-19 | 2011-04-28 | Hochiki Corp | Radio disaster prevention system, sensor node, radio wave relay node, and radio disaster prevention node |
| JP2011096169A (en) * | 2009-11-02 | 2011-05-12 | Hochiki Corp | Disaster monitoring system |
| JP2012048454A (en) * | 2010-08-26 | 2012-03-08 | Hochiki Corp | Relay |
| JP2013109627A (en) * | 2011-11-22 | 2013-06-06 | Nohmi Bosai Ltd | Fire alarm facility and relay using the same |
| JP2014153810A (en) * | 2013-02-06 | 2014-08-25 | Nohmi Bosai Ltd | Termination device |
| JP2015166926A (en) * | 2014-03-03 | 2015-09-24 | パナソニックＩｐマネジメント株式会社 | Radio communication apparatus |
| JP2015079545A (en) * | 2015-01-29 | 2015-04-23 | ホーチキ株式会社 | Receiver |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2886726B2 (en) | 1999-04-26 |
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