JPH1021478A - Fire alarming system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire alarming system in which the generation of ringing can be prevented from being largely delayed by repeatedly executing an operation for forcedly stopping the generation of ringing. SOLUTION: This fire alarming system is provided with a sensor 2 which detects fire, a receiving part 11 which receives a detection signal outputted from the sensor 2, identifies the sensor 2 which outputs the pertinent detection signal, and outputs a reception signal, ringing part 14 which rings according to a signal from the pertinent receiving part, a ringing stopping part 15 which forcedly stops the aforesaid ringing, and a ringing controlling part 13 which allows the ringing part 14 to ring again when the sensor 2 continuously outputs the detection signal after the lapse of a prescribed time since the ringing was stopped by the ringing stopping part 15. This system is also provided with a display part 16, and the fire situation from the sensor 2 is displayed and each time the ringing is forcedly stopped, the aforesaid prescribed time is successively shortened by the ringing controlling part 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire alarm system for notifying fire information from a fire detector.

[0002]

2. Description of the Related Art Conventionally, in a fire alarm system, when a fire is detected by a sensor, a buzzer, a siren or the like generates a sound, and the danger caused by the fire is monitored centrally at a fire site, around a fire site, or a fire. Notify the center. Also,
The fire control device is driven and controlled based on the signal obtained from the sensor to promptly extinguish the fire. As a result, fire can be dealt with promptly and fire suppression processing can be performed.

[0003] At this time, in order to secure time for confirming whether the information from the sensor is correct or not, a fire manager or the like is provided with a stop unit for forcibly stopping the generated sound once a certain time has elapsed since the stop. The ringing may occur again later.

[0004]

However, if the time from the stop of the ringing to the occurrence of the next ringing is constant, the fire manager repeats the stop operation again by the time the next ringing occurs, thereby repeating the ringing. It is possible to delay the occurrence forever, which is extremely dangerous when assuming an actual fire site.

[0005] The present invention has been made in view of the above points, and an object of the present invention is to greatly reduce the number of forcibly stopping the sound even though a fire is progressing. An object of the present invention is to provide a fire alarm system that does not delay the generation of a sound.

[0006]

According to the first aspect of the present invention,
Detecting a fire detector and a detector that has received a detection signal output from the detector and has output the detection signal,
A receiving unit that outputs a reception signal, a sounding unit that sounds by a signal from the receiving unit, a sound stopping unit that forcibly stops the sound, and a predetermined time after the sound is stopped by the sound stopping unit, In a fire alarm system having a sound control unit that re-sounds the sound unit when the sensor is still outputting a detection signal, the sound control unit sequentially shortens the predetermined time each time sound is forcibly stopped. It is characterized by having been made to do.

According to a second aspect of the present invention, in the fire alarm system according to the first aspect, a detector for detecting a physical quantity related to a fire phenomenon and outputting a detection signal, and judging a fire situation based on a signal level of the detection signal. In addition, a fire discriminating unit for determining whether to generate a sound is added.

According to a third aspect of the present invention, in the fire alarm system according to the second aspect, a plurality of the sounding units are provided, and an appropriate sounding unit is selected from the sounding units according to a detection signal level of the sensor. Is selected, and an interlocking information discriminating unit that makes the selected sounding unit sound is added.

According to a fourth aspect of the present invention, in the fire alarm system according to the third aspect, when the signal level reaches a predetermined level, all the sounding units are sounded by the interlocking information discriminating unit. It is characterized by having done.

According to a fifth aspect of the present invention, in the fire alarm system according to the third or fourth aspect, when a predetermined time has elapsed from the first fire detection or when a sensor different from the sensor that has output the detection signal is provided, The present invention is characterized in that, when any one of a detection signal is output or an oscillator is issued, all the sounding units are sounded in the interlocked information discriminating unit.

According to a sixth aspect of the present invention, in the fire alarm system according to any one of the first to fifth aspects, a display unit for displaying a detection state of the sensor is provided.

According to a seventh aspect of the present invention, in the fire alarm system according to the sixth aspect, a detection state of a sensor is displayed on the display unit irrespective of a sound stop operation of the sound stop unit. It is a feature.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram showing a fire alarm system according to an embodiment of the present invention, and shows a state where a plurality of detectors 2 are connected to a fire receiver 1. The fire receiver 1 includes a receiving unit 11, a storage unit 12, a sound control unit 13, a sound unit 14, a sound stop unit 15, and a display unit 16. The sensor 2 detects a fire condition such as heat or smoke, and a plurality of sensors 2 ₁ as shown in FIG.
If to 2 _n is present, the sensor 2 ₁ to 2 _n is adapted to be distinguished by a unique address A ₁ to A _n.

[0014] receiving unit 11, the address A ₁ to identify them if the detection signal and a plurality of sensors 2 ₁ to 2 _n indicating the fire conditions sensed from heat and smoke and the like are present ~A
Receive _n . The storage unit 12 stores various data necessary for controlling the entire system.

The sound control unit 13 receives a detection signal of the sensor 2 received by the receiving unit 11 and sounds a sound unit 14 such as a buzzer or a siren. The ringing stop unit 15 forcibly stops generated ringing. If the detector 2 still outputs the detection signal after a predetermined time has passed since the ringing was stopped by the ringing stop unit 15, it is determined that the fire has not been extinguished, and the ringing control unit 13 restarts the ringing unit. 14
Sound.

Here, the ringing control section 13 controls the ringing section so as to sequentially shorten the time until the next ringing occurs each time the ringing is forcibly stopped by the ringing stop section 15.

The display section 16 displays the fire information obtained from the sensor, the fire spot, the elapsed time from the detection of the fire, and the like using an LED or the like. In addition, the display unit 16 may be provided not only in the fire receiver 1 but also in a plurality of places where the fire notification system performs monitoring, so as to visually notify the fire spot or the surrounding area of the fire.

Next, the operation of this embodiment will be described. Fire
When it occurs, the detector 2 detects fire information such as heat and smoke.
And the detection signal is a fire installed at a disaster prevention center, etc.
The plurality of sensors 2 received by the receiver 11 of the receiver 1₁~
2_nUnique address A of ₁~ A_nAt the same time as the detection signal
Is received. Sounds when the detection signal is received by the receiver 11.
The control section 13 sounds the buzzer, siren, etc.
Move. The generated sound is artificially generated by the sound stop unit 15.
Can be forcibly stopped. And forcibly stop the ringing
Detector 2 still fires after a certain period of time
When detecting, that is, when the fire is not extinguished,
The ringing control unit 13 makes the ringing unit 14 ring again. here
Further, the ringing is forcibly stopped by the ringing stop unit 15, and
When Detector 2 still detects a fire situation
Is controlled by the sound control unit 13 before the predetermined time is reached.
The sounding unit 14 sounds. After that, whether to stop the ringing
The interval between the occurrence of re-ringing and the
Is output by the ringing control unit 13 as long as the
Is set so that the sound is finally stopped by the sound stop unit 15.
The motion cannot be forcibly stopped.

The display section 16 displays the position of the fire spot obtained from the sensor 2, the elapsed time from the detection of the fire, the number of times the sound stop operation is performed, and the like. It should be noted that displaying on the display unit 16 without relying on the ringing stop operation can always visually inform the fire situation, which is useful from the viewpoint of safety.

According to the present embodiment, repetition of the forcible stop operation of the ringing does not significantly stop the re-ringing. In addition, by providing the display unit, it is possible to visually grasp the number of times the ringing stop operation is performed.

FIG. 2 is a schematic configuration diagram showing a fire alarm system according to another embodiment of the present invention. In the fire alarm system of FIG. 2, in addition to the configuration of the fire alarm system of FIG.
The fire detection unit 16 is added to the fire receiver 1. Also,
The sensor 2 is an analog sensor that measures a physical quantity such as a smoke quantity and a heat quantity related to a fire phenomenon and outputs the measured physical quantity as a detection signal. The fire determining unit 16 determines whether the physical quantity detected by the sensor 2 has reached a predetermined level, determines that a fire has occurred if the physical quantity exceeds the predetermined level, and sounds the sound by the sound control unit 5. The unit 14 is caused to ring.

Next, the operation of this embodiment will be described. The sensor 2 used here is an analog sensor that detects a fire phenomenon in an analog manner. Receiving unit 1 as in the previous embodiment
1, the addresses A ₁ -A of the plurality of sensors 2 ₁ -2 _n
Continuously detects _n and physical quantities such as heat. Fire discrimination unit 1
In step 6, when the physical quantity exceeds a predetermined level, it is determined that the sensor 2 has detected a fire, and the sound control unit 13 performs sound generation similar to that of the previous embodiment. Note that the sound may be changed in volume or sound quality based on the detected signal level.

The display section 16 may display the level of heat or smoke detected by the sensor in addition to the display contents of the above embodiment.

According to the present embodiment, the use of the analog type sensor for continuously detecting a fire phenomenon as an analog physical quantity allows the sounding unit to be controlled according to the fire condition.

FIG. 3 is a schematic configuration diagram showing a fire alarm system according to another embodiment of the present invention. In the fire alarm system of FIG. 3, in addition to the configuration of the fire alarm system of FIG.
The fire alarm receiver 1 is provided with an interlocking information discriminating unit 18 and a plurality of sounding units 14 are installed at locations where the fire alarm receiver 1 and the fire alarm system monitor. The interlocking information discriminating unit 18 includes a plurality of sounding units 14 ₁ to 14 ₁ according to the detection signal level of the sensor 2.
An appropriate sounding unit 14 is selected from 14 _m . The ringing control unit 13 controls the ringing unit 14 based on the selection of the linked information determination unit 18.
Sound.

Next, the operation of this embodiment will be described. In this embodiment, a plurality of sounding units 14 are provided, and a sounding unit that sounds based on a detection signal from the sensor is linked to the interlocking information discriminating unit 13.
Can be controlled more finely. For example, when a fire occurs in a certain building, the scale of the fire is determined from the detection signal of the sensor 2, and when the fire is small, the fire receiver and the sounding unit 14 at the fire site are sounded, and the time elapses. As the signal level increases, the sounding units 14 in the surrounding area of the fire, such as the floor immediately above and immediately below the fire site, in addition to the previous sounding unit, sound, and finally all sounding units 14 sound. Also,
Depending on the level of the detection signal, all the sounding units 14
May be sounded.

Furthermore, even if a certain period of time has passed since the first fire detection by the sensor 1, the detector 2 still generates a detection signal (the fire has not been extinguished), or a plurality of sensors 1 When a fire is detected, or when an oscillator is issued (a person is notified of a fire), the fire scale is predicted to be considerably large. May be sounded.

The display section 16 may display, in addition to the above information, the position of the ringing section 14 where the ringing is occurring, so that a fire manager or the like can promptly deal with the fire. .

According to the present embodiment, in a fire alarm system having a plurality of sounding units, it is possible to control which sounding unit is sounded according to the scale of the fire and its situation.

[0030]

As described above, according to the first aspect of the present invention, a detector for detecting a fire and a detector for receiving a detection signal output from the detector and outputting the detection signal are identified. A receiving unit that outputs a reception signal, a sounding unit that sounds according to a signal from the receiving unit, a sound stopping unit that forcibly stops the sounding, and a sensor that stops the sounding for a predetermined time after the sounding is stopped by the sounding stopping unit. In a fire alarm system having a sound control unit for re-sounding the sound unit when the detection signal is still output, the time from the forcible stop of the sound to the re-occurrence of the sound is sequentially shortened each time the sound is stopped. As a result, it was possible to provide a fire alarm system in which the time required for false alarm confirmation and the like can be secured to some extent, and the generation of sound does not significantly delay due to the operation of the forced stop. In addition, since the time from the forcible stop of the ringing to the re-ringing becomes shorter each time the operation of the ringing stop is performed, it is possible to recognize to some extent the elapsed time from the detection of the fire by the time the ringing is forcibly stopped. Becomes

In the invention according to claim 2, claim 1 is
In the described invention, the addition of the analog sensor and the fire discrimination unit allows the sounding unit to be finely controlled based on the signal level of the sensor.

According to the third aspect of the present invention, there is provided the second aspect.
In the described invention, since a plurality of sounding units and a sounding control unit for controlling the sounding units are added, it is possible to control such that sounding is performed while selecting some or all of the sounding units.

According to the fourth aspect of the present invention, there is provided the third aspect.
In the described invention, all the sounding parts are made to sound when the detection signal of the sensor reaches a certain level, so that all the sounding parts can be sounded immediately depending on the scale of the fire. .

According to the fifth aspect of the present invention, a third aspect is provided.
Or, in the invention according to claim 4, when a predetermined time has elapsed from the first fire detection, or when a detector different from the sensor that has output the detection signal detects the occurrence of a fire, or there is an oscillator alarm. Since all the sounding parts are caused to sound when one of the times occurs, it is possible to immediately sound all the sounding parts depending on the fire situation.

In the invention according to claim 6, claim 1 is
In the invention according to the fifth to fifth aspects, the detection state of the sensor and the like are displayed on the display unit, so that it is possible to visually recognize the fire situation.

In the invention according to claim 7, claim 6
In the described invention, the detection state and the like of the sensor are displayed regardless of the operation of stopping the sound, so that the operation state and the like of the sensor can always be visually grasped.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a fire alarm system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a fire alarm system according to another embodiment of the present invention.

FIG. 3 is a block diagram showing a fire alarm system according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fire receiver 2 Detector 11 Receiving part 12 Storage part 13 Sound control part 14 Sound part 15 Sound stop part 16 Display part 17 Fire judgment part 18 Interlock information judgment part

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Satoshi Ogage 1048 Odakadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd.

Claims (7)

[Claims] 1. A detector for detecting a fire, a receiver for receiving a detection signal output from the detector, identifying the sensor that has output the detection signal, and outputting a reception signal, and a receiver for receiving the detection signal. A sounding unit that sounds according to a signal from, a sounding stop unit that forcibly stops the sounding, and a case where the sensor still outputs a detection signal after a predetermined time has elapsed since the sounding was stopped by the sounding stopping unit. A fire alarm system comprising: a sound control unit for re-sounding the sound unit; and wherein the sound control unit successively shortens the predetermined time every time the sound is forcibly stopped. Notification system. 2. A sensor for detecting a physical quantity related to a fire phenomenon and outputting a detection signal, and a fire discriminating unit for judging a situation of a fire based on a signal level of the detection signal and determining whether to generate a sound. The fire alarm system according to claim 1, wherein the fire alarm system is added. 3. An interlocking information discriminating unit that includes a plurality of the sounding units, selects an appropriate sounding unit from the sounding units according to a detection signal level of the sensor, and sounds the selected sounding unit. The fire alarm system according to claim 2, wherein 4. The fire alarm system according to claim 3, wherein when the signal level reaches a predetermined level, all the sounding units are sounded by the interlocking information discriminating unit. 5. Either when a certain period of time has passed since the first fire detection, when a sensor different from the sensor that output the detection signal outputs a detection signal, or when an oscillator is issued is issued. The fire alarm system according to claim 3 or 4, wherein when the alarm occurs, all the sounding units are sounded in the interlocking information discriminating unit. 6. The fire alarm system according to claim 1, further comprising a display unit for displaying a detection state of the sensor. 7. The fire alarm system according to claim 6, wherein a detection state of a sensor is displayed on the display unit regardless of a sound stop operation of the sound stop unit.