JP2017142571A - Fire alarm facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire alarm facility which is automatically restored even if an alarm is false and stopped in the case that the fire alarm facility issues the alarm in the absence of an administrator and the like.SOLUTION: A fire alarm facility 100 includes: a fire sensor 3 for outputting a fire signal; a fire receiver 1 connected to the fire sensor 3 via a sensor line 2 and receiving the fire signal, and notifying the fire. The fire receiver 1 determines that there is a fire, and outputs a restoration signal for restoring the fire alarm facility 100 after the elapse of a predetermined time from a point when the fire is notified. Then, the fire alarm facility is restored once.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fire alarm facility.

  Generally, a fire alarm facility includes a fire detector and a fire receiver connected to the fire detector. When a fire occurs, the fire detector outputs a fire signal to the fire receiver. When the fire receiver receives the fire signal, it fires itself to notify the fire, sounds the district sound, and holds the fire signal to maintain itself.

Disaster prevention center personnel located at disaster prevention centers, etc., when a fire receiver reports a fire, go to check the area where the fire was detected, and if it is non-fire, work to restore the fire alarm equipment . The fire alarm equipment is restored by operating the restoration switch provided on the fire receiver. In other words, when the fire alarm system is restored, it is necessary to operate personnel such as disaster prevention center personnel.
(See Patent Document 1).

JP-A-5-274564

  However, in a small-scale facility or the like, a building manager may manage the fire alarm equipment and the manager may not be resident. If the fire alarm system is activated in the absence of a manager, the fire alarm system cannot be restored, and the local sound will continue to ring until it is restored. For this reason, when the manager is absent, the fire alarm facility may be turned off.

  The present invention has been made to solve such a problem, and even when the fire alarm facility gives an alarm when an administrator or the like is absent, the alarm is automatically recovered when the alarm is in error, and the alarm stops. The purpose is to provide fire alarm equipment.

  The present invention, in a fire alarm facility comprising: a fire detector that outputs a fire signal; and a fire receiver that is connected to the fire detector via a sensor line and receives the fire signal to notify the fire, The fire receiver is characterized by outputting a restoration signal that restores the fire alarm facility after a predetermined time has elapsed since the time when the fire was determined to have been notified and the fire was notified.

  The present invention temporarily restores the fire alarm facility after a predetermined time has elapsed since the fire receiver notified the fire by an alarm, so even if the alarm of the fire alarm facility is a false alarm, it automatically recovers and stops the alarm be able to.

It is the schematic which shows the whole fire alarm equipment 100 which concerns on Embodiment 1 which concerns on this invention. It is the schematic which shows the whole fire alarm equipment 200 which concerns on Embodiment 2 which concerns on this invention. It is the schematic which shows the whole fire alarm equipment 300 which concerns on Embodiment 3 which concerns on this invention.

Embodiment 1
<Configuration of fire alarm system 100>
With reference to FIG. 1, the structure of the fire alarm equipment 100 which concerns on Embodiment 1 of this invention is demonstrated.
The fire alarm system 100 according to the present invention includes a fire receiver 1, a sensor line 2 connected to the fire receiver 1, and a plurality of fire detectors provided on the sensor line 2 and connected to the fire receiver 1. A so-called P-type fire alarm facility. One or a plurality of sensor lines 2 are provided, and a plurality of fire detectors 3 are provided for each. In the present embodiment, the detector line 2 is described as three, that is, three lines of fire alarm equipment 100, but the number of lines is not limited thereto.

  The fire detector 3 detects physical quantities such as heat and smoke, detects a fire based on the physical quantities, and outputs a fire signal to the sensor line 2. Here, the fire signal means that when the fire detector 3 detects a fire, the detector line 2 is short-circuited by a switching operation and maintained in a low impedance state. The low impedance means that the impedance is lower than the impedance of the sensor line 2 in a state where no fire has occurred. The switching operation of the fire detector 3 is a so-called self-holding state in which the state where the fire is detected is maintained.

  When the fire receiver 1 receives a fire signal output to the sensor line 2 and determines that it is a fire, the fire receiver 1 sounds itself by the main sound and also sounds a district sound (not shown) to notify the fire. Hereinafter, the sound of the main sound and the district sound may be described as an alarm.

<Configuration of fire receiver 1>
In the fire receiver 1, the detection circuit 11, the recovery circuit 14, the main acoustic circuit 12, and the district acoustic control circuit 13 are connected to the control circuit 15.

  The detection circuit 11 is provided for each of a plurality of sensor lines 2 and monitors a fire signal for each sensor line 2. The detection circuit 11 receives the fire signal output from the fire detector 3 and outputs a signal indicating that the fire signal has been received to the control circuit 15. Although the detection circuit 11 is described as being provided for each sensor line 2 in the first embodiment, the detection circuit 11 may be connected to each sensor line in turn. In that case, a recovery circuit 14 described later is also sequentially connected to each sensor line.

  When the detection circuit 11 receives the fire signal, the control circuit 15 outputs a ringing signal to the main acoustic circuit 12 and also outputs a ringing signal to the district acoustic control circuit 13. Further, the detection circuit 11 starts timing after receiving the fire signal, and outputs a recovery command signal to the recovery circuit 14 connected to the sensor line 2 to which the fire signal has been output after a predetermined time has elapsed. Note that the predetermined time is a time until there is no false alarm source such as cigarette smoke or cooking smoke, and is, for example, 5 minutes. In the following description, the elapse of the predetermined time will be described as five minutes after the time when the detection circuit 11 receives the fire signal (that is, the time when the detection circuit 11 determines that a fire has occurred). It is not limited to 5 minutes.

  The main acoustic circuit 12 is a circuit for sounding an alarm sound by the fire receiver 1 itself, and the district acoustic control circuit 13 is a circuit for controlling a district bell or the like for sounding an alarm sound necessary in each district. is there. The board surface of the fire receiver 1 is provided with a main sound stop switch and a district sound stop switch (not shown). By pressing these switches, the main sound and the district sound can be stopped and released.

The restoration circuit 14 is provided for each sensor line 2 and is provided so as to be connected to the detection circuit 11 and the control circuit 15. When the recovery circuit 14 receives the recovery command signal output from the control circuit 15, the recovery circuit 14 outputs a recovery signal, releases the self-holding of the fire detector 3, and performs a recovery operation to stop the fire signal. The recovery command signal output from the control circuit 15 is output by pressing a recovery switch (not shown) provided on the board surface of the fire receiver 1, and as described above, the detection circuit 11 outputs a fire signal. It is also output after a predetermined time (5 minutes) has elapsed since reception.
In the P-type fire alarm system 100, the recovery of the fire receiver 1 refers to the sound and fire indication by deleting the self-holding fire signal after measuring 5 minutes by itself after determining the fire. The recovery of the fire detector 3 means that the recovery circuit 14 stops the movement of the circuit that continues the output of the fire signal by turning off the power of the sensor circuit 2 once. 3 is released.

  The fire receiver 1 has a storage function. The operation of the storage function will be described in detail. First, after the fire receiver 1 receives the first fire signal, the restoration circuit 14 turns off the sensor line 2 to release the self-holding of the fire detector 3. To do. If the fire actually occurs, the fire detector 3 outputs a second fire signal to the fire receiver 1, and the fire receiver 1 determines that there is a fire based on the second fire signal. That is, the fire receiver 1 has a function of judging a fire when it receives a fire signal again within a predetermined accumulation time, for example, 1 minute after receiving the first fire signal output from the fire detector 3. Accumulation function.

<Explanation of manual recovery>
With reference to FIG. 1, an operation will be described in which an administrator or the like confirms a fire site when the fire alarm facility 100 notifies of a fire, and manually restores the fire alarm facility 100 when there is a false alarm. That is, a method for restoring a so-called general fire alarm facility will be described.
When the fire alarm system 100 gives an alarm, the manager or the like heads to the section where the sensor line 2 that outputs the fire signal is provided. Then, when an administrator or the like goes to the site and confirms that there is no fire, the manager returns to the fire receiver 1 and starts the following recovery operation.

  First, if there is other fire prevention equipment (not shown) such as smoke prevention equipment that operates according to the interlocking signal output from the fire receiver 1 or emergency broadcast equipment that operates according to the transfer signal, the interlocking not shown Press the shut-off switch, the transfer shut-off switch, or the collective shut-off switch that shuts off both, shut off the interlock signal and the transfer signal, and then perform other firefighting equipment restoration operations.

  Then, after the restoration operation of the other fire fighting equipment is completed, the restoration switch is pushed by the fire receiver 1, and after the fire alarm equipment 100 is restored, the interlock cutoff switch and the transition cutoff switch are pushed again, and the interlocking signal and the bulletin Release the signal block. With these operations, the operation for restoring the fire alarm system 100 is completed.

  In the case of a general fire alarm facility, it cannot be recovered unless the recovery operation as described above is performed. For example, when there is no person who operates the fire receiver 1 without an administrator or the like, The alarm continues and does not stop.

<Description of operation>
With reference to FIG. 1, the operation of the first embodiment in which the fire alarm system 100 is automatically restored when the manager is absent will be described.
First, when the fire detector 3 outputs the first fire signal to the sensor line 2, the fire receiver 1 receives the first fire signal at the detection circuit 11 connected to the sensor line 2. When the detection circuit 11 receives the first fire signal, the control circuit 15 counts a predetermined accumulation time of 1 minute and cancels the self-holding of the fire detector 3 by the recovery circuit 14.

  Next, when a second fire signal is received from the fire detector 3 during a predetermined accumulation time, the control circuit 15 outputs a ringing signal to the main acoustic circuit 12 and the district acoustic control circuit 13 to notify the fire. At the same time, timing of a predetermined time (5 minutes) is started, and a recovery command signal is output to the recovery circuit 14 after a predetermined time of 5 minutes elapses. When the recovery circuit 14 receives the recovery command signal, the recovery circuit 14 outputs the recovery signal, cancels the self-holding of the fire detector 3 and the fire receiver 1, and stops the fire signal.

Finally, after the fire alarm system 100 is temporarily restored, the control circuit 15 stops the storage function of the fire receiver 1.
As a result, when the fire detector 3 outputs a fire signal due to cigarette smoke or the like, that is, when it is a false alarm, a recovery signal is output from the recovery circuit 14 after 5 minutes from the reception of the fire signal by the detection circuit 11. Since it is output, the fire alarm system 100 is automatically restored.

Similarly, when the fire detector 3 outputs a fire signal due to a real fire, a recovery signal is output from the recovery circuit 14 after five minutes have elapsed since the detection circuit 11 received the fire signal. Once the fire alarm system 100 is restored. However, since the storage function of the fire receiver 1 is stopped, the fire detector 3 immediately detects a fire again, and a fire signal is output again. Therefore, the fire alarm system 100 restarts and continues the alarm. become.
Since the operation as described above is performed, even in the case of the fire alarm facility 100 provided in a building where an administrator or the like is absent, the alarm can be continued in the event of a fire, and the alarm can be stopped and recovered in the event of a false alarm.

  In addition, even if the fire alarm system 100 is once recovered, the alarm may be continued without stopping for a certain period of time, more specifically, a period of time necessary until the fire receiver 1 determines that a fire has occurred again. . By doing so, even if the fire alarm system 100 is automatically restored in the event of a fire, the alarm can be continued without interruption until the fire alarm system 100 is sounded again.

  Moreover, although the invention according to Embodiment 1 of the present invention has been described on the assumption that the fire receiver 1 has a storage function, the fire detector 3 may have a storage function. The fire detector 3 having a storage function outputs a fire signal when a fire is detected again within a predetermined storage time from the first fire detection. Once recovered, the accumulation operation is stopped. By doing so, even if the fire alarm system 100 is once recovered in the event of a fire, an alarm can be quickly issued again. In addition, when the fire receiver 1 or the fire detector 3 has a storage function, it is preferable to stop the storage function after the fire alarm system 100 has spread once. The effects of the invention can be obtained.

  In addition, when the fire signal is received from the plurality of sensor lines 2, the control circuit 15 does not need to output the recovery command signal even after a predetermined time (5 minutes) has elapsed since the fire was notified. When a fire signal is output to a plurality of sensor lines 2, the probability of a fire is really high, so the alarm can be continued without being automatically restored. Similarly, in the case of providing a system capable of receiving fire signals individually from two different sensors on the same sensor line 2, the alarm can be continued without recovery by receiving the two fire signals.

Embodiment 2
With reference to FIG. 2, a fire alarm facility 200 according to Embodiment 2 of the present invention will be described. In the second embodiment, the difference from the fire alarm facility 100 of the first embodiment will be mainly described, and the configuration corresponding to the first embodiment will be described with the same reference numerals. Omitted.

<Configuration of fire alarm system 200>
The fire alarm system 200 is connected to the fire receiver 1a through the fire receiver 1a, the sensor line 2 connected to the fire receiver 1a, the repeater 5 provided in the sensor line 2, and the repeater 5. It is what is called a P-type fire alarm equipment provided with a plurality of fire detectors 3.

<Configuration of fire receiver 1a>
In the fire receiver 1a, a detection circuit 11a, a main acoustic circuit 12, and a district acoustic control circuit 13 are connected to a control circuit 15.
The detection circuit 11 a is a circuit that is provided for each repeater 5 provided for each of the plurality of sensor lines 2 and monitors a fire signal for each sensor line 2 via the repeater 5. The detection circuit 11a receives the fire signal output from the fire detector 3 via the repeater 5, and outputs a signal indicating that the fire signal has been received to the control circuit 15a.
When the detection circuit 11 a receives the fire signal, the control circuit 15 a outputs a ringing signal to the main acoustic circuit 12 and also outputs a ringing signal to the district acoustic control circuit 13.

<Configuration of repeater 5>
The repeater 5 is installed so that a plurality of sensor lines 2 are interposed in the sensor line 2. The repeater 5 includes a control circuit 21, a detection circuit 22, a recovery circuit 23, and an output circuit 24. It is connected.

  The detection circuit 22 is connected to the sensor line 2 and monitors a fire signal for each sensor line 2. The detection circuit 22 receives a fire signal output from the fire detector 3 via the subsequent sensor line 2 and outputs a signal indicating that the fire signal has been received to the control circuit 21. In the sensor line 2, the fire receiver 1a side is referred to as a front stage, and the terminal side where a terminal resistor (not shown) is provided is referred to as a rear stage.

  When the detection circuit 22 receives the fire signal, the control circuit 21 causes the output circuit 24 to perform a switching operation so as to output the fire signal to the detection circuit 11a of the fire receiver 1a and start timing, for example, for a predetermined time (for example, After 5 minutes), a recovery command signal is output to the recovery circuit 23 connected to the sensor line 2 from which the fire signal has been output.

The recovery circuit 23 is provided so as to be connected to the detection circuit 22 and the control circuit 21. When the recovery circuit 23 receives the recovery command signal output from the control circuit 21, the recovery circuit 23 outputs a recovery signal, releases the self-holding of the fire detector 3, and performs a recovery operation to stop the fire signal. Here, the restoration of the fire detector 3 means that the restoration circuit 23 stops the movement of the circuit that continues the output of the fire signal by turning off the power of the sensor line 2 once, and the self-holding is released. is there.
The repeater 5 also has a storage function, and it is determined that a fire has occurred when a fire signal is received again within a predetermined storage time after receiving the first fire signal output from the fire detector 3. .

<Description of operation>
With reference to FIG. 2, the operation of the present embodiment in which the fire alarm system 200 is automatically restored when the manager is absent will be described.
First, when the fire detector 3 outputs the first fire signal to the sensor line 2, the repeater 5 receives the first fire signal at the detection circuit 22 connected to the subsequent sensor line 2. When the detection circuit 22 receives the first fire signal, the control circuit 21 measures a predetermined accumulation time (for example, 1 minute) and cancels the self-holding of the fire detector 3 by the recovery circuit 23.

  Next, when a second fire signal is received from the fire detector 3 during a predetermined accumulation time, the control circuit 21 transmits a fire detection signal to the output circuit 24 to operate, and the switching operation of the output circuit 24 is performed. The fire signal is output to the sensor line 2 in the previous stage. When the fire signal output from the output circuit 24 is received by the detection circuit 11a of the fire receiver 1a, the fire receiver 1a sounds the main sound and notifies the fire.

The control circuit 21 outputs a fire signal from the output circuit 24, measures a predetermined time (5 minutes), and outputs a recovery command signal to the recovery circuit 23 after the predetermined time of 5 minutes has elapsed. When the recovery circuit 23 receives the recovery command signal, the recovery circuit 23 outputs the recovery signal, releases the self-holding of the fire detector 3 and the fire receiver 1a, and stops the fire signal. Thereby, alarms, such as the main sound of the fire receiver 1a, stop. In addition, although it does not explain in detail as a structure which restores the fire receiver 1a with the restoration signal of the repeater 5, for example, if a pressing means for pressing a restoration switch (not shown) of the fire receiver 1a with the restoration signal is provided. good. Further, a signal line may be connected to an input / output detection circuit (not shown) of switches of the fire receiver 1a, and a signal similar to that when the recovery switch is pressed directly may be generated in the fire receiver 1a.
Finally, after the fire alarm facility 200 is temporarily restored, the control circuit 21 stops the accumulation function of the repeater 5. The accumulation function may be provided in the fire detector 3 instead of the repeater 5.

  As described above, by providing the repeater 5 with the configuration for temporarily restoring the fire alarm facility 200, the fire receiver 1a that does not include the recovery circuit 14 and the control circuit 15 like the fire receiver 1 of the first embodiment. However, by connecting the repeater 5, the fire alarm facility 200 can be temporarily restored after the fire alarm. That is, the fire alarm facility equipped with the existing fire receiver 1a can be renewed to the fire alarm facility 200 that is temporarily restored without updating the fire receiver.

Embodiment 3
With reference to FIG. 3, the fire alerting | reporting equipment 300 which concerns on Embodiment 3 of this invention is demonstrated. In the third embodiment, the difference from the fire alarm facility 100 of the first embodiment will be mainly described, and the configuration corresponding to the first embodiment will be described with the same reference numerals. Omitted.

<Configuration of fire alarm system 300>
With reference to FIG. 3, the structure of the fire alarm equipment 300 is demonstrated.
The fire alarm system 300 according to the present invention includes a fire receiver 1b, a repeater 6 connected via the transmission line 7, and a plurality of fire detectors 3 connected via the repeater 6 and the sensor line 2. And so-called R-type fire alarm equipment. The transmission line 7 connected to the fire receiver 1b is common, and each relay line 6 necessary for the transmission line 7 is provided together with other terminal devices (not shown). In the present embodiment, three sensor lines 2 provided via the repeater 6 are described, but the number of sensor lines is not limited thereto.

  The repeater 6 is connected to the fire detector 3 via the sensor line 2 and to the transmission circuit 16 of the fire receiver 1b via the transmission line 7. The repeater 6 receives the fire signal output from the fire detector 3 to the detector line 2 and transmits a transmission signal indicating the fire signal to the fire receiver 1b via the transmission line 7.

<Configuration of fire receiver 1b>
Based on FIG. 2, the structure of the fire receiver 1b of Embodiment 3 is demonstrated.
In the fire receiver 1b, the transmission circuit 16, the main acoustic circuit 12, and the district acoustic control circuit 13 are connected to the control circuit 15b.
One transmission circuit 16 is provided for one set of transmission lines 7 and is connected to the repeater 6 via the transmission lines 7. And it is a circuit which monitors the fire signal output to each sensor line 2 via the repeater 6. The transmission circuit 16 receives the fire signal output from the fire detector 3 as a transmission signal via the repeater 6, and outputs a signal indicating that the transmission signal indicating the fire signal has been received to the control circuit 15b.

When the transmission circuit 16 receives a transmission signal indicating a fire signal, the control circuit 15 b outputs a ringing signal to the main acoustic circuit 12 and also outputs a ringing signal to the district acoustic control circuit 13. Further, the transmission circuit 16 starts timing after receiving a transmission signal indicating a fire signal via the repeater 6, and after a predetermined time (for example, 5 minutes) has elapsed, the fire receiver 1b is restored and the fire signal is restored. The restoration command signal is output to the repeater 6 connected to the sensor line 2 from which is output.
The fire receiver 1b has a storage function. The storage function may be provided not in the fire receiver 1b but in the fire detector 3, or may be provided in the repeater 6 as in the second embodiment.

<Configuration of repeater 6>
In the repeater 6, a detection circuit 26, a recovery circuit 27, and a transmission circuit 29 are connected to the control circuit 25.
The detection circuit 26 is connected to each of the plurality of sensor lines 2 and monitors a fire signal for each sensor line 2. The detection circuit 26 receives the fire signal output from the fire detector 3 and outputs a signal indicating that the fire signal has been received to the control circuit 25.

When the detection circuit 26 receives the fire signal, the control circuit 25 uses the transmission circuit 29 to output a transmission signal indicating the fire signal to the transmission circuit 16 of the fire receiver 1b.
The recovery circuit 27 is provided for each sensor line 2 and is connected to the detection circuit 26 and the control circuit 25. When the control circuit 25 receives the restoration command signal output from the transmission circuit 16 by the control circuit 15b of the fire receiver 1b, the restoration circuit 27 outputs the restoration signal, restores the fire detector 3, and stops the fire signal. Perform recovery action.

<Description of operation>
With reference to FIG. 3, the operation of the present embodiment in which the fire alarm system 300 is automatically restored when the manager is absent will be described.
When the fire sensor 3 outputs a fire signal to the sensor line 2, the repeater 6 receives the fire signal and outputs a transmission signal indicating the fire signal from the transmission circuit 29 to the transmission line 7. When the fire receiver 1b receives the second fire signal from the fire detector 3 through the repeater 6 during a predetermined accumulation time, the fire receiver 1b judges that it is a fire and sounds the main sound or the like. The control circuit 15b measures a predetermined time (5 minutes). And after 5 minutes which are predetermined time passes, the fire receiver 1b once recovers itself, the ringing of the main sound, etc. stops, and from the transmission circuit 16 to each terminal device (not shown) including the repeater 6 In response, a recovery command signal is output. Further, the control circuit 15b stops the accumulation function of the fire receiver 1b.

  The repeater 6 that has received the restoration command signal outputs the restoration signal to the sensor line 2 and the fire detector 3 is temporarily restored. That is, the fire receiver 1b restores itself, and the repeater 6 restores the fire detector 3, whereby the fire alarm facility 300 is temporarily restored.

As a result, the fire alarm device 300 is automatically restored in the event of a false alarm, and in the event of a fire, the fire alarm device 300 is temporarily restored, but the storage function of the fire receiver 1b is stopped. 3 detects the fire again, and the fire alarm system 300 can resume the alarm and continue.
Since the operation as described above is performed, even in the case of the fire alarm facility 300 provided in a building where an administrator or the like is absent, the alarm can be continued in the event of a fire, and the alarm can be stopped and recovered in the event of a false alarm.

As described above, according to Embodiments 1 to 3 of the present invention, the present invention has the following configuration.
(1) A fire comprising: a fire detector that outputs a fire signal; and a fire receiver that is connected to the fire detector via a sensor line and that receives the fire signal and notifies the fire. In the notification facility, the fire receiver concludes that a fire has occurred, and after a predetermined time has elapsed since the time when the fire was notified, a recovery signal for restoring the fire notification facility is output, and the recovery is temporarily performed thereby. It is.
(2) Also, in the present invention, in (1), the fire receiver includes a detection circuit that receives the fire signal, and a predetermined time after the detection circuit receives the fire signal and determines that a fire has occurred. A control circuit that outputs a recovery command signal; and a recovery circuit that receives the recovery command signal and outputs a recovery signal that temporarily recovers the fire receiver and the fire detector. .
(3) Further, in the present invention (1) or (2), the fire detector having a storage function for outputting a fire signal when a fire is detected again within a predetermined time from the first fire detection, or The fire receiver has a storage function for determining a fire when a fire signal is received again within a predetermined time after receiving the first fire signal, and the fire alarm facility is temporarily restored. Then, the accumulation operation is canceled.
(4) Further, in the fire alarm facility having a plurality of the sensor lines in (2) according to the present invention, the restoration circuit is connected to each of the sensor lines and is temporarily restored for each of the sensor lines. The fire receiver, when receiving the fire signal from a plurality of the sensor lines, does not output a recovery signal even after a predetermined time has passed since the fire was notified. is there.
(5) Also, in the present invention according to any one of (1) to (4), the fire receiver outputs a restoration signal for restoring the fire alarm facility after a predetermined time has elapsed after notifying the fire by an alarm. Then, the alarm is continued for a predetermined time.
(6) The present invention also includes a fire detector that outputs a fire signal, and a fire receiver that is connected to the fire detector via a sensor line and that receives the fire signal and notifies the fire. In the fire alarm facility, the sensor line includes a repeater, the relay outputs the received fire signal to the fire receiver and measures a predetermined time, and the fire alarm facility is installed after a predetermined time has elapsed. A recovery signal for recovery is output, and the recovery is once performed thereby.
(7) The present invention also includes a fire detector that outputs a fire signal, and a fire receiver that is connected to the fire detector via a sensor line and that receives the fire signal and notifies the fire. In the fire alarm facility, the detector circuit includes a repeater, the repeater outputs the received fire signal to the fire receiver and counts a predetermined time, and after the predetermined time has elapsed, A recovery signal to be recovered is output, and the fire receiver recovers itself after a predetermined time from the time when the fire signal is received and the fire is notified, and is thereby recovered once. .

  1, 1a, 1b Fire receiver, 2 sensor line, 3 fire detector, 5, 6 repeater, 7 transmission line, 11, 11a detection circuit, 12 main acoustic circuit, 13 district acoustic control circuit, 14, 14a Circuit 15, 15, 15a, 15b control circuit, 16 transmission circuit, 21 control circuit, 22 detection circuit, 23 recovery circuit, 24 output circuit, 25 control circuit, 26 detection circuit, 27 recovery circuit, 29 transmission circuit, 100, 200, 300 Fire alarm equipment.

Claims (7)

In a fire alarm facility comprising: a fire detector that outputs a fire signal; and a fire receiver that is connected to the fire detector via a sensor line and that receives the fire signal and notifies a fire;
The fire receiver concludes that a fire has occurred, and after a predetermined time has elapsed since the time when the fire was notified, outputs a restoration signal that restores the fire alarm facility,
A fire alarm facility that is once restored. The fire receiver is
A detection circuit for receiving the fire signal;
A control circuit for outputting a recovery command signal after elapse of a predetermined time after the detection circuit receives the fire signal and determines a fire;
A recovery circuit for receiving the recovery command signal and outputting a recovery signal for temporarily recovering the fire receiver and the fire detector;
The fire alarm equipment according to claim 1, wherein The fire detector having a storage function that outputs a fire signal when a fire is detected again within a predetermined time after the first fire detection, or fire again within a predetermined time after receiving the first fire signal Comprising the fire receiver having a storage function for judging a fire when receiving a signal;
The fire alarm system according to claim 1 or 2, wherein the storage function cancels the storage operation once the fire alarm facility is restored. In the fire alarm facility comprising a plurality of the sensor lines,
The restoration circuit is connected to each sensor line, and temporarily restores each sensor line,
3. The fire receiver according to claim 2, wherein when the fire signal is received from a plurality of the sensor lines, the fire receiver does not output a recovery signal even after a predetermined time has elapsed since the fire was notified. Fire alarm equipment.   5. The fire receiver continues the alarm for a predetermined time after outputting a restoration signal for restoring the fire alarm facility after a predetermined time has elapsed since the fire was notified by an alarm. The fire alarm equipment according to any one of the above. In a fire alarm facility comprising: a fire detector that outputs a fire signal; and a fire receiver that is connected to the fire detector via a sensor line and that receives the fire signal and notifies a fire;
The sensor line is equipped with a repeater,
The repeater outputs the received fire signal to the fire receiver and counts a predetermined time, and outputs a restoration signal that restores the fire alarm facility after a predetermined time has elapsed,
A fire alarm facility that is once restored. In a fire alarm facility comprising: a fire detector that outputs a fire signal; and a fire receiver that is connected to the fire detector via a sensor line and that receives the fire signal and notifies a fire;
The sensor line is equipped with a repeater,
The repeater outputs the received fire signal to the fire receiver and counts a predetermined time, and outputs a recovery signal that restores the fire detector after a predetermined time has elapsed,
The fire receiver recovers itself after elapse of a predetermined time from the time when the fire signal is received and the fire is notified.
A fire alarm facility that is once restored.

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