JP2000207653A - Fire alarm system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire alarm system which properly broadcasts a fire not to broadcast a fire due to an erroneous alarm even at the time of managing plural buildings by one emergency broadcast equipment in a large-scale system. SOLUTION: A fire receiver 1 is provided with a storage means 13 where buildings managed by each of emergency broadcast equipment 2a and 2b are grouped and are stored, a reception means 11 which receives a fire signal, transfer output means 14a and 14b which transfer and output a fire confirmation signal to emergency broadcast equipment 2a and 2b, and a control means 12. When the reception means 11 receives the fire signal, the control means 12 refers to the storage means 13; and if a second or following fire sensor S has been operated in buildings of the same group, the control means 12 transfers and outputs the fire confirmation signal from the transfer and output means 14a and 14b to one of the emergency broadcast equipment 2a and 2b corresponding to this group.

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 configured to broadcast a fire occurrence or evacuation guidance using an emergency broadcast facility connected to a fire receiver.

[0002]

2. Description of the Related Art Conventionally, fire alarm systems have been introduced in buildings and condominiums, and fire receivers have been installed in centralized monitoring rooms, management rooms, etc., and the smoke density and ambient temperature of each room and dwelling units. Monitoring the occurrence of fires based on the data from When a fire detector installed in each room or floor emits an alarm, the fire receiver uses a sound device (such as a bell) set in advance for the fire detector to report the occurrence of a fire. And people in the building can be evacuated quickly. At the same time, the smoke control equipment (fire doors, smoke outlets, etc.) in the vicinity of the fire detector that triggered the alarm is interlocked to prevent the spread of fire and the spread of smoke.

Further, in this type of fire alarm system, an emergency broadcast facility connected to a fire receiver makes it possible to broadcast a fire occurrence or evacuation guidance by a voice message from a speaker installed in a building. I have. Specifically, when one of the fire detectors is activated, "
The fire detector on the floor has been activated. Please be aware of the next broadcast as the staff has confirmed. "Then, when the second fire detector is activated, the following fire detector is activated."It's a fire. It's a fire. A fire has occurred on the floor. Please calm down and evacuate. " Broadcasting (fire broadcasting). In addition, as a result of confirming the operation of the first fire detector and confirming that it was a false alarm, "The operation of the fire detector just before, as a result of the confirmation,
There was no abnormality. Please be assured. "(Non-fire broadcasting).

[0004]

However, the above-mentioned conventional fire alarm system is applied to a large-scale building having a plurality of buildings and a single fire receiver monitors a wide area of the whole building. For each building, even if it is the first operation of each fire detector, two fire detectors are activated in total, so the fire receiver causes the emergency broadcast equipment to broadcast the fire. However, if the ridges are different,
Since each could be a false alarm, there was a problem with the reliability of the system.

[0005] In order to solve such a problem, the present applicant counts the operation of the fire detector for each building when performing fire monitoring in a building including a plurality of buildings.
We have already proposed a system for broadcasting fires.
However, there are places in the building where multiple buildings are adjacent to each other. In such a case, if a fire occurs in one building, there is a risk that the fire may spread to the adjacent building. In some cases, a plurality of buildings are managed by a single emergency broadcast facility, and even in such a case, development of a system for appropriately performing a fire broadcast has been awaited.

The present invention has been made in view of such circumstances, and in a large-scale system, even when a plurality of buildings are managed by one emergency broadcast facility, a fire broadcast is appropriately performed, and a fire due to a false report is performed. The purpose of the present invention is to provide a fire alarm system that prevents broadcasting.

[0007]

In order to achieve the above object, a fire alarm system according to claim 1 of the present invention comprises:
The fire receiver includes, for each emergency broadcast facility, storage means for grouping and storing one or a plurality of buildings managed by the emergency broadcast facility, and a fire signal when one of a plurality of fire detectors is activated. Receiving means for receiving an emergency broadcast facility, a transmission output means for transmitting and outputting a fire confirmation signal in order to perform a fire broadcast from a speaker, and by operating one of the plurality of fire detectors, When the receiving means receives the fire signal, it refers to the storage means, and if the operation of the fire detector is the operation of the second or more fire detectors in a ridge in the same group, it corresponds to the group. And control means for transmitting and outputting a fire confirmation signal from the transmission output means to the emergency broadcast facility.

[0008] Thus, the operation of the fire detector is counted for each group and the fire is broadcast.
Even when managing multiple buildings with one emergency broadcast facility, it is possible to appropriately perform a fire broadcast. In the fire alarm system according to the second aspect, the storage unit of the fire receiver further stores each of the installation locations of the plurality of fire detectors in the building by classifying them at least by floor for each building, and transfers the location. The signal output means further transmits and outputs a floor-specific signal indicating the building where the fire detector is installed and the floor in order to cause the emergency broadcast equipment to broadcast the operation of the fire detector from the speaker. The control means refers to the storage means when the receiving means receives a fire signal by the operation of one of the plurality of fire detectors, and determines whether the operation of the fire detector is in the same group. When the fire detector is operated for the first time in the inner building, the transmission signal is transmitted and transmitted from the transmission output means to the emergency broadcast equipment corresponding to the group.

In the fire alarm system according to the third aspect,
The fire receiver is further connected to a transmitter installed at an appropriate place in the building, and the receiving means further receives a fire signal when the transmitter operates. When the receiving means receives a fire signal due to the operation of the transmitter, the transmission means refers to the storage means and transmits to the emergency broadcast equipment corresponding to the group to which the building where the transmitter is installed belongs from the transmission output means. , And transfer the fire confirmation signal.

In this fire alarm system, unlike the operation of the fire detector, when the transmitter is operated by a button operation, the emergency broadcast equipment corresponding to the group to which the building in which the transmitter is installed immediately fires. Broadcast. In the fire alarm system according to claim 4, the receiving means of the fire receiver further receives a restoration signal when the fire detector or the transmitter is restored, and the control means comprises a receiving means. When receiving the restoration signal, the transmission output means stops the fire confirming signal or the floor-by-floor signal transmitted to the emergency broadcast facility.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an example of a main configuration of the fire alarm system according to the present invention.
Here, the fire receiver 1 connects all fire detectors, transmitters, and the like with a common multiplex transmission line L1, so-called R
Although the present invention is not limited to this, the present invention is not limited to this. A so-called P-type receiver is used in which each fire detector or transmitter installed on each floor is connected in parallel using a plurality of detector lines. Machine may be used.

In such a fire alarm system, the fire receiver 1 is composed of a CPU or the like, and controls a signal processing unit 10 for controlling the following units; a reception unit 11 for receiving a signal through the multiplex transmission line L1; 10 together with the emergency broadcast equipment 2a, 2b,..., Which constitutes the control means of the present invention, and determines from which group the signal received by the receiving unit 11 is a signal among groups pre-divided in the building.・ ・
Determination unit 1 that determines whether or not to perform transfer output to
2. The storage means of the present invention is constituted, and the installation location of the fire detector in the building is classified by building (1 building, 2 buildings), further by floor (1st basement, 1st floor, 2nd floor), by district. (1 district, 2 districts), a read-out table storage unit 13 classified and stored for each group (group A, group B), constitutes the transmission output means of the present invention, and broadcasts from the emergency broadcast facilities 2a, 2b. Transfer output units 14a and 14b for performing transfer output for
A display unit 15 configured by a CRT, a liquid crystal screen, or the like, for displaying a fire occurrence location, etc., and an operation unit 16 configured by various switches and the like to instruct the fire receiver 1 on various operations.

The emergency broadcast facilities 2a and 2b are provided for each group divided in advance in the building, and are connected to the transfer output units 14a and 14b via transfer output lines La and Lb. The transmission output line La is a fire confirmation signal line (terminal) aE for transmitting and outputting a fire confirmation signal so that the fire receiver 1 causes the emergency broadcast facility 2a to perform a fire broadcast.
F, and floor-specific signal lines (terminals) aEA1 to aEAn for transmitting and outputting floor-specific signals indicating the floor where the fire detector is installed in order to broadcast the operation of the fire detector. .

The floor-specific signal lines aEA1 to aEAn are provided by the number of floors of the entire building belonging to the group which is divided in advance. Are provided. The transfer output line Lb has the same configuration as that of the transfer output line La, and a description thereof will be omitted. The replacement table storage unit 13
As shown in FIG. 2, it is composed of a non-volatile memory such as an EPROM or an EEPROM, and includes a ridge data table 13A for storing ridge data of a fire detector and a group data table 13B for storing a group to which the ridge belongs. ing.

In the ridge data table 13A, addresses assigned to the fire detectors installed at appropriate places in the building so as not to overlap with each other, and corresponding installation locations (buildings, floors, districts, groups) are indicated. Is set. Note that the address of the transmitter and the installation location are set in the same manner, and "number" data for specifying the installation location may be added to the installation location.

In such a fire alarm system, in the normal monitoring state, the fire receiver 1 performs polling via the multiplex transmission line L1 based on the address information of the fire detector to detect an abnormal operation or disconnection of the line. In such a state, when a fire detector or a transmitter issues an alarm and receives a fire signal by interruption, the following operation is performed.

Upon receiving the fire signal, the fire receiver 1 turns on or blinks an indicator light (not shown) indicating the operation of the fire sensor, and a district window (not shown) corresponding to the installation location of the alerted sensor. Is turned on or blinks, and an alarm sound is output from a built-in acoustic device (not shown). Then, an alarm is output from a district sound device (not shown) which is set in advance for the sensor, and a smoke prevention device (not shown) is operated to form a smoke discharge section. That is, the fire receiver 1 is connected to a smoke elimination device such as a fire door through a smoke elimination line (not shown), and a district sound device such as a bell through a district acoustic line (not shown). When the occurrence of a fire is confirmed, these are controlled in an interlocked manner.

Further, the fire receiver 1 has an emergency broadcast facility 2
a, 2b, the emergency broadcast facilities 2a, 2b
From 2b, a fire broadcast, a sensor operation broadcast, a non-fire broadcast for notifying that a false report has been made, etc. can be made to speakers installed at appropriate places in the building. The present invention
The fire receiver 1 is characterized by an operation when transmitting and outputting a signal to the emergency broadcast facilities 2a and 2b. When the fire detector activates the receiving unit 11 to receive a fire signal, the group discriminating unit 12 operates. After referring to the ridge data table 13A and obtaining ridge data in which the fire detector is set, referring to the group data table 13B, the operation of the fire detector is the first in a ridge in the same group. Is operated, the transmission output units 14a and 14b transfer and output the floor-specific signal of the floor where the sensor is installed to the emergency broadcast facilities 2a and 2b. Further, when the operation of this sensor is the second or more operation in a ridge in the same group, a fire confirmation signal is transmitted and output from the transmission output units 14a and 14b.

More specifically, the emergency broadcast facilities 2a and 2b
When a floor-specific signal is received, the floor is automatically inserted into the voice message, and the message “The fire detector on the ○ floor has just been activated. ”(Broadcast of the sensor operation), for example, by voice of a woman, and then when a fire confirmation signal is received,
A broadcast (fire broadcast) such as "Fire is on fire. A fire has occurred on the floor. Please calm down and evacuate."

Also, after receiving the floor-specific signal, without receiving the fire confirmation signal, the operation of the operation unit 16 is performed by a person or the like who confirms that the operation of the detector is incorrect. When receiving a recovery signal from, a broadcast (non-fire broadcast), such as, "The fire detector just acted, there was no abnormality as a result of confirmation. Please rest assured."

When the receiver 11 receives a fire signal due to the operation of the transmitter, the fire receiver 1 sends a fire confirmation signal to the emergency broadcast facilities 2a and 2b from the transfer output units 14a and 14b. Is transmitted and output. This is different from the fire detector operation, in which a fire signal is received due to human operation. Work to do.

Further, when the receiving unit 11 receives a restoration signal via the multiplex transmission line L1 because the fire detector no longer detects the cause of the fire, the transmitter is restored, or the like. Transmission output unit 1 for emergency broadcast equipment 2a, 2b
The fire confirming signal or the floor-by-floor signal transmitted and output by 4a and 14b is stopped. This also enables emergency broadcast facilities 2
a and 2b can perform the above-mentioned non-fire broadcast indicating that it is a false report.

When the restoration signal is received, the group discriminating unit 12 refers to the group in which the restored fire detectors and transmitters are installed from the replacement table storage unit 13 and performs the following operation. Operates according to recovery conditions. If the source of the recovery signal is a fire detector and this recovery still activates two or more remaining fire detectors in a building in the same group, transfer the fire confirmation signal and the floor signal. Output is continued, and when it becomes one, transmission output of fire confirmation signal is stopped, and when all fire detectors are restored, all transmission output (fire confirmation signal, all floor signals) are output. Stop. On the other hand, when the transmitter is restored, if no other transmitter is operating and two or more fire detectors are not operating in the same group, the transmission output of the fire confirmation signal is stopped.

Next, a specific configuration of such a fire alarm system is shown in FIGS. 3 and 4. FIG. In FIG.
A so-called centralized fire alarm system, in which one fire receiver monitors all fire detectors or transmitters, is shown. The buildings are group A (one building) and group B (two buildings, 3 and 4 buildings) and Group C (5 and 6 buildings)
And a group D (seven buildings), a multiplex transmission line L1 is derived from a fire receiver 1 installed in a centralized monitoring room, a manager's room, or the like (here, located in the management building). L
1 is a detector line L to which a fire detector S and a transmitter P are connected.
s while the receiver 1 transmits the transfer output lines La to L
d are respectively derived, and emergency broadcast facilities 2a to 2d installed corresponding to each of the groups A to D are connected to each of the output lines La to Ld.
d through each of the emergency broadcast lines L2a to L2d,
Speakers SP installed at appropriate places in the building are connected.

On the other hand, FIG. 4 shows a so-called decentralized fire alarm system that can independently monitor a fire detector or a transmitter even when a fire receiver breaks down. Shown, the building is group A
(1, 2, 5, 6) and Group B (3, 4,
Building, 7 buildings). From the fire detector 1 installed in the centralized monitoring room and the management room (here in the management building),
The multiplex transmission line L1 is led out in a so-called loop shape. The transmission line L1 is installed in each building, and the fire detector S and the transmitter P
Are connected in series, while the receiver 1 derives transmission output lines La and Lb, respectively, and each of the output lines La and Lb is provided with an emergency The broadcast facility 2a is connected to the emergency broadcast facility 2b installed corresponding to the group B, and the emergency broadcast facilities 2a and 2b are connected to appropriate places in the building via the emergency broadcast lines L2a and L2b. The installed speaker SP is connected.

Next, the operation of the above fire alarm system when the fire receiver 1 receives a fire signal will be described with reference to the flowcharts (100 to 107) of FIG. Here, the operation of the distributed fire alarm system shown in FIG. 4 is shown. A fire signal counter (Ta for Group A, Tb for Group B) is provided for each group. The signal to be transferred and output is determined based on Ta and Tb.

When the fire signal is received, the fire table S is referred to based on the address in the signal, and the received fire signal is from the fire detector S, and the first fire in the same group is detected. If it is from the sensor S,
If it is from the second or subsequent fire detector S, a fire confirmation signal is transferred and output. If the signal is a fire signal from the transmitter P, a fire confirmation signal is transferred and output irrespective of the counter values Ta and Tb (100 to 107).

[0028]

As can be understood from the above description, in the fire alarm system according to the first aspect of the present invention, when the fire detector operates, the fire detector operates. Only when two or more fire detectors are operating in buildings in the same group, a fire confirmation signal is transmitted and output to emergency broadcast equipment, so multiple buildings can be managed by one emergency broadcast equipment. In this case, a fire report can be appropriately performed to reduce false alarms, and the reliability of the system is improved.

According to the second aspect, the fire receiver transmits a floor signal to the emergency broadcast equipment when the fire detector is operated for the first time in a building in the same group. Since the fire alarm is output, even if two or more fire detectors are operating in the entire building, if only one fire detector is operated in each group, the detector operation broadcast can be performed and false alarm can be prevented.

According to the third aspect, when the fire receiver receives a fire signal due to the operation of the transmitter, the fire receiver sends a fire confirmation signal to the emergency broadcast facility corresponding to the group to which the building in which the transmitter is installed belongs. Since the transfer output, as in the past,
Fire broadcasts can be made immediately to buildings in the group. According to the fourth aspect, even when the fire receiver monitors the operation of the fire detectors for each group and transmits and outputs a fire confirmation signal or a floor-by-layer signal, when a recovery signal is received, the fire receiver outputs these signals. Can be appropriately stopped to stop broadcasting or non-fire broadcasts that indicate false alarms.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of a main configuration of a fire alarm system of the present invention.

FIG. 2 is a diagram illustrating an example of a configuration of a replacement table storage unit.

FIG. 3 is a diagram showing an example of a configuration of a fire alarm system of the present invention.

FIG. 4 is a diagram showing another example of the configuration of the fire alarm system of the present invention.

FIG. 5 is a flowchart showing an example of the operation of the fire alarm system of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Fire receiver 10 ... Signal processing part 11 ... Receiving part 12 ... Group discriminating part 13 ... Reading table storage part 14a, 14b ... Transfer output part 2a, 2b, 2c , 2d ... emergency broadcast equipment La, Lb, Lc, Ld ... transfer output line aEF, bEF ... fire confirmation signal line aEA1 to aEAn, bEA1 to bEAn ... floor-specific signal line L1 ... Detector line L2a, L2b, L2c, L2d: Emergency broadcast line S: Fire detector SP: Speaker P: Transmitter

Claims (4)

[Claims] A fire receiver connected to a plurality of fire detectors installed at appropriate places in a building comprising a plurality of buildings, and a speaker connected to the fire receiver and installed at an appropriate place in the building. In the fire alarm system including one or a plurality of connected emergency broadcast facilities, the fire receiver is provided for each of the emergency broadcast facilities and managed by the emergency broadcast facility.
Or, storage means for grouping and storing a plurality of buildings, receiving means for receiving a fire signal when any of the plurality of fire detectors is activated, and for the emergency broadcast facility, from the speaker Transmission output means for transmitting and outputting a fire confirmation signal in order to perform a fire broadcast; and when the reception means receives a fire signal by operation of one of the plurality of fire detectors, the storage means When the operation of the fire detector is the operation of the second or more fire detectors in a ridge in the same group, the emergency transmission equipment corresponding to the group is transmitted from the transmission output means. And a control means for transmitting and outputting a fire confirmation signal. 2. The fire receiver according to claim 1, wherein the storage unit further classifies at least each floor of the plurality of fire detectors in the building at least by floor. The transmission output means further indicates the building and floor where the fire detector is installed in order to cause the emergency broadcast equipment to broadcast the operation of the fire detector from the speaker. The control means refers to the storage means when the receiving means receives a fire signal by operation of any of the plurality of fire detectors. , The operation of the fire detector,
In a wing in the same group, when the fire detector is operated for the first time, a fire-based signal is transmitted to the emergency broadcast equipment corresponding to the group from the transmission output means. Notification system. 3. The fire receiver according to claim 1 or 2, further comprising a transmitter installed at an appropriate place in the building, wherein the receiving means further comprises: When activated,
When a fire signal is received by the operation of the transmitter, the control means refers to the storage means when the reception means receives the fire signal, and controls the building in which the transmitter is installed. A fire alarm signal transmitted from the transmission output means to an emergency broadcast facility corresponding to the group to which the group belongs. 4. The fire receiver according to claim 1, wherein the receiving means further receives a recovery signal when the fire detector or the transmitter is recovered. The control means, when the receiving means receives the restoration signal, stops the fire confirmation signal or the floor signal which is transmitted and outputted by the transmission output means to the emergency broadcast equipment. A fire alarm system characterized by the following.