JP2001266275A - Equipment for signaling fire for apartment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly ascertain a fire and to prevent the expansion of the fire even though a line through which a fire decision signal is outputted from a dwelling information board to a repeater is disconnected in fire signaling equipment for an apartment. SOLUTION: This fire signaling equipment 100 for an apartment provided with sensors 50, 50... the repeater 20 and the dwelling information board 30 in a dwelling unit 101 and a residential building receiver 10 connected to the repeater 20 of each dwelling unit, the board 30 transmits the fire decision signal to the repeater 20 through the line L3 in the case of receiving a sensor operation signal transmitted from the repeater 20 in case any of the sensors 50 senses a fire, and the repeater 20 transmits the fire decision signal to the receiver 10 when the repeater 20 received the fire decision signal from the board 30. The repeater 20 is provided with a line disconnection detecting mean 60 for detecting the disconnection of the line L3, when the fire is sensed, the repeater 20 decides that the line L3 is disconnected due because of to the detection by the means 60 and generates a fire decision signal for itself and transmits the fire decision signal to the receiver 10.

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 an apartment house installed in an apartment house such as an apartment.

[0002]

2. Description of the Related Art In recent years, apartment houses and other condominiums are provided with a fire alarm system for monitoring the occurrence of a fire and notifying the operator when a fire has occurred. Such a fire alarm system includes a living building receiver that controls the entire fire alarm system,
It consists of a repeater installed in an open corridor for each house, a house information panel and a fire detector installed in each house. When a fire detector installed in each house detected a fire, a signal to that effect was sent to the housing information panel via a repeater, and the housing information panel that received this signal activated the detector for residents. Notify to the effect. When the resident confirms the fire and operates the confirmation switch on the house information panel, a fire confirmation signal is output from the house information panel via a repeater to the ward receiver, and the resident receiver activates a fire alarm in the apartment house. It is supposed to.

[0003]

However, if the line for outputting the fire determination signal from the house information panel to the repeater is broken, the fire determination signal cannot be transmitted. On the other hand, if the fire confirmation signal is not sent from the house information panel even after a predetermined time has elapsed after the sensor
The repeater itself is configured to transmit a fire determination signal to the living room receiver, and the same applies to the above-described disconnection.
However, since the repeater wait time (the predetermined time) when the repeater itself transmits the fire determination signal is set, if a fire really occurs, the fire spreads during this time. There was a risk that the damage would increase.

[0004] It is an object of the present invention to provide a fire alarm system for a condominium, in which even if a line for outputting a fire confirmation signal from the house information panel to the repeater is disconnected, the fire is quickly confirmed and the spread of the fire is prevented. It is in.

[0005]

Means for Solving the Problems To solve the above problems, the invention described in claim 1 is, for example, shown in FIGS.
As shown in FIG. 2, a fire detector (sensors 50, 50, 50), a relay (20) connected to the fire detector, and a housing information panel (20) connected to the relay are provided in each dwelling unit (101). 30)
And a living building receiver (1) connected to the repeater of each dwelling unit
0), the house information panel, upon receiving a detector activation signal output from the repeater when a fire is detected by the fire detector, notifies the fact to the inside of the dwelling unit and fires according to predetermined conditions. A fire determination signal for determining the occurrence is transmitted to the repeater via a predetermined line (L3). When the fire determination signal is received from the house information panel, the repeater transmits the signal to the housing ridge receiver. In the fire alarm system (fire alarm system 100) for an apartment house, the repeater is provided with a disconnection detecting means (60) for detecting disconnection of the predetermined line, and the repeater detects a fire by a fire detector. When it is determined that the line is disconnected from the result of the detection by the disconnection detecting means when it is sensed, a fire determination signal is generated by itself and transmitted to the living room receiver.

According to the first aspect of the present invention, when the relay detects that a fire has been detected by the fire detector, the relay determines that the line is in a disconnected state by detection of the disconnection detecting means, and outputs a fire determination signal. Since it is generated by itself and transmitted to the living room receiver, the repeater sends a fire confirmation signal to the living room receiver as soon as it detects a fire at the time of disconnection, without waiting until the predetermined time elapses as in the past. Therefore, it is possible to quickly determine the occurrence of a fire and prevent the spread of the fire.

Here, when "when the fire detector senses a fire, it is determined from the detection result by the disconnection detecting means that the line is in a disconnected state", the fire detection and the disconnection detecting operation by the disconnection detecting means are performed. It does not matter before or after time. If the disconnection is detected before the fire is detected, the information may be stored, or the disconnection detection operation may be always performed after the fire is detected.

[0008] The "predetermined condition" for transmitting a fire determination signal in the house information panel is, for example, the claim 2.
May be configured as in the invention described in (1). That is, according to the second aspect of the present invention, in the fire alarm system for an apartment house according to the first aspect, a resident who knows that the fire has been detected by the fire detector is confirmed on the house information panel. Fire decision switch operated in case (decision switch 44)
And a house information panel timer (timer 41a) for measuring a predetermined time from when the sensor operation signal is received,
The house information panel transmits a fire confirmation signal when the predetermined time has elapsed by operating a fire confirmation switch or by measuring a timer for a house information panel without operating the fire confirmation switch. .

According to the second aspect of the present invention, the first aspect is provided.
In addition to the effects of the invention described in the above, when the predetermined line is not broken, if there is a resident, the fire confirmation switch is operated, and even if there is no resident, the timer of the house information panel timer is timed up, so that it is ensured. A fire confirmation signal is transmitted to

[0010] In the fire alarm system for an apartment house according to the first or second aspect, the disconnection detecting means is configured to distinguish the presence or absence of the disconnection based on a change in a voltage signal as in the invention according to the third aspect. May be. For example, the high potential and the low potential of the output from the comparison circuit are distinguished.

According to a fourth aspect of the present invention, in the fire alarm system for an apartment house according to any one of the first to third aspects, power is supplied to the house information panel from the repeater at least when a power outage occurs in the dwelling unit. It is characterized by.

According to the fourth aspect of the present invention, even if a power failure occurs in the dwelling unit, power is supplied to the house information panel from the repeater, so that operations relating to disaster prevention of the house information panel become possible.
Here, the power supply from the repeater to the house information panel may use a predetermined signal output from the repeater to the house information panel, or only the power supply may be separately output. Also,
Since it is “at least”, power may be supplied other than during a power outage.

According to a fifth aspect of the present invention, in the fire alarm system for an apartment house according to any one of the first to fourth aspects, the relay unit measures a predetermined time from when the sensor activation signal is transmitted. A relay timer is provided, and when the disconnection is not detected by the disconnection detecting means, if the fire determination signal is not transmitted from the house information panel even after a predetermined time measured by the relay timer has elapsed, a fire determination is performed. It is characterized in that it generates a signal by itself and transmits it to the receiver of the house.

According to the invention described in claim 5, according to claim 1 of the present invention,
In addition to the effects of the inventions of (1) to (4), also in the case where the predetermined line is not broken and the fire determination signal is not transmitted from the house information panel due to other reasons, for example, failure, the repeater transmits the fire determination signal. Since it is generated by itself and transmitted to the receiver of the house, it is possible to reliably determine the fire and to report the fire.

In the fire alarm system for an apartment house according to any one of claims 2 to 5, the fire confirmation switch may be a mechanical switch as in the invention according to claim 6.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram showing a configuration of a fire alarm system 100 as an example of a fire alarm system for an apartment house according to the present invention. The fire alarm system 100 includes a living building receiver 10, a repeater 20 installed for each house, a house information panel 30, fire detectors 50, 50, and the like. In an apartment house equipped with the fire alarm system 100, each house has a dwelling unit 10
Repeater, housing information panel, sensor, etc. are installed as in 1,
The repeater of each dwelling unit is connected to the dwelling unit receiver 10, and signals are similarly transmitted and received with the repeaters of all dwelling units. In addition, the house information panel 30 installed in each door of the fire alarm system 100 may be configured to also serve as an intercom connected to a door phone beside the entrance. In addition, the repeater 20 and the house information panel 30 may be provided with a remote test function that enables an external tester to test whether or not various operations upon fire detection are performed normally.

The ward receiver 10 is for supervising the fire alarm system 100 and is installed in an administrator's room or the like of an apartment house, and includes a district circuit 11, a display device 12, and a power supply device 13. The district circuit 11 is a circuit for recognizing and processing various signals output from the repeater of each dwelling unit, with one floor including a plurality of dwelling units as one district. The display device 12 displays the situation inside the fire alarm system 100, and displays a fire occurrence or the like for each district. Power supply 1
3 normally receives power from the regular power supply 14, but has a backup power supply (not shown).
When the power supply is cut off, power is obtained from the backup power supply.

Further, the living building receiver 10 and the repeater 2 of each dwelling unit are provided.
Numeral 0 is connected by a signal line L1 and a power supply line L2, transmits and receives signals via the signal line L1, and is supplied with power from the living room receiver 10 to the repeater 20 via the power supply line L2. You. Power is supplied to the fire detectors 50, 50,... Via the repeater 20, that is, the repeater 20 and the fire detectors 50, 50,.
Is receiving power from As described above, since the power supply device 13 has a backup function at the time of a power failure, the fire monitoring by the living room receiver 10, the repeater 20, the fire detectors 50, 50... It is always done.

The repeater 20 is installed at a location facing the open corridor of the dwelling unit 101, and includes a district circuit 21, a display device 22, a processing circuit 23, a transmission / reception interface 24, a storage unit 25, and a transmission / reception interface 26. . The district circuit 21 is connected to the line L5 to which the fire detectors 50 are connected, and processes a signal (fire detection signal) indicating that a fire has been detected from each of the fire detectors 50. The signal is transmitted to the circuit 23. The display device 22 includes, for example, an LED (light emitting diode), and displays the operation of the fire detector, the detection of disconnection, and the like.

The processing circuit 23 performs various processing operations in response to various signals input to the repeater 20, and sends out predetermined signals to the living building receiver 10 and the housing information panel 30.
For example, in response to a fire detection signal from the fire detector 50, a detector operation signal is transmitted to the house information panel 30, and a fire determination signal output from the house information panel 30 in response to the detector operation signal is transmitted to the house building receiver. Send to 10. The processing circuit 23
Is provided with a timer 23a (repeater timer), and the processing circuit 23 transmits the sensor operation signal to the house information panel 30 and starts the timer, and a predetermined time,
Here, if a fire determination signal is not transmitted from the house information panel 30 side even after 130 seconds have elapsed, a fire determination signal is generated by itself and output to the house building receiver 10.

Further, the processing circuit 23 has a function of monitoring the disconnection of the line L3 to which the fire determination signal from the house information panel 30 is transmitted. Is stored in the storage unit 25. Further, when the line L3 is disconnected, the processing circuit 23
In response to the input of the fire detection signal, a fire determination signal is generated and output to the living room receiver 10 without waiting for a fire determination signal from the house information panel 30. Details of the disconnection detection will be described later.

The transmission / reception interface 24 is an interface for transmitting / receiving a signal to / from the living room receiver 10. The transmission / reception interface 26 is provided with a line L3,
It is connected to L4 and transmits and receives signals to and from the house information panel 30.

The house information panel 30 is installed in the room of the dwelling unit 101, and includes a fire alarm circuit section 40, a display device 32,
And a power supply circuit 33. The power supply circuit 33 supplies power from a regular power supply 34 in the dwelling unit to the house information panel 30. In the housing information panel 30, the track L
The sensor activation signal from the repeater 20 is also transmitted via the line L6 branched from the power supply 4, and the power supply circuit 33 can use the voltage of this signal as a drive voltage when the commercial power supply 34 fails. That is, at the time of a power failure, the repeater 20 is connected to the house information panel 3.
It can be said that an emergency power supply is supplied to 0.

The fire alarm circuit section 40 includes a processing circuit 41, a district circuit 42, a display circuit 43, a decision switch 44, and a transmission / reception interface 45. The transmission / reception interface 45 is connected to the lines L3 and L4,
It transmits and receives signals to and from 0.

When the sensor operation signal is input via the transmission / reception interface 45, the processing circuit 41 outputs the signal to the district circuit 42 and starts a timer (a house information panel timer) 41a provided in the circuit. When a sensor activation signal is input to the district circuit 42, the display device 32 performs a display indicating that the sensor has been activated and an audio warning under the control of the display circuit 43. When the resident confirms the fire and operates the confirmation switch 44 in response to the display or the sound warning, the processing circuit 4
1 outputs a fire determination signal. The processing circuit 41 sends out a fire determination signal by itself if the determination switch 44 is not operated within a predetermined time after the timer 41a is started. Note that the timer 41
The “predetermined time” measured by the timer 23 of the repeater 20 is
a is set shorter than the time-up of a.
Set to seconds.

The fire detectors 50 are, for example, on / off type heat detectors, and are connected to the repeater 2 via a line L5.
0, and transmits a fire detection signal to the repeater 20 when a fire is detected. In addition, a terminator 51 composed of a capacitor or the like is connected to an end of the line L5 for disconnection monitoring.

In the fire alarm system 100 having the above configuration, when any one of the plurality of fire detectors 50 detects a fire, it outputs a fire detection signal to the repeater 20 via the line L5. When a fire detection signal is input, repeater 2
The processing circuit 23 transmits a sensor operation signal to the house information panel 30 via the transmission / reception interface 26,
3a starts time measurement.

In the house information panel 30, when a sensor operation signal is input, the display device 3 is controlled under the control of the display circuit 43.
2 performs a predetermined display operation to notify the resident, and the timer 41a of the processing circuit 41 starts measuring time. When the resident confirms the fire and operates the confirmation switch 44, and when the timer 41a times out without operating the confirmation switch 44, the processing circuit 41 transmits the fire confirmation signal via the transmission / reception interface 45 to the repeater. 20. The repeater 20 outputs the fire determination signal to the living building receiver 10, and the living building receiver 10 issues a fire alarm or the like based on the signal. When the timer 23a has timed out without a fire determination signal being input from the house information panel 30, the repeater 20 outputs the fire determination signal to the living room receiver 10 by itself.

The repeater 20 is provided with a disconnection detecting means for detecting a disconnection of the line L3. FIG. 2 shows the disconnection detecting means 60. In FIG. 2, reference numeral 20a denotes the repeater 20.
Of the processing circuit 23.
And a circuit related to disconnection detection of the transmission / reception interface 26. Reference numeral 30a denotes a circuit constituting a part of the house information panel 30, specifically, a circuit related to disconnection detection of the processing circuit 41 and the transmission / reception interface 45. In FIG. 1, only the lines L3 and L4 are shown as lines connecting the transmission / reception interface 26 and the transmission / reception interface 45.
3, a common line common to L4 is connected. FIG. 2 shows a line L3 and a common line C as lines connecting the repeater 20 and the house information panel 30.

In FIG. 2, reference numeral 61 denotes an IC (integrated circuit) for detecting disconnection detection and output of a fire determination signal.
Reference numeral 62 denotes a comparator for detecting disconnection, and reference numeral 63 denotes a comparator.
Is a comparator for confirming the output of the fire determination signal. In the circuit shown in FIG. 2, the contacts S and T are connection contacts to the living building receiver 10 side. A predetermined voltage is applied between the contacts S and T so that the potential on the contact S side is always higher. Here, this voltage is set as an initial voltage. A minus terminal of the comparator 62 is supplied with a voltage obtained by dividing the initial voltage by the resistors R9 and R1 and further dividing the initial voltage by the resistors R10 and R16. On the other hand, the positive voltage is applied to the positive terminal by a resistor R.
11 and R14, and further divided by resistors R13 and R17.
Is input, and this is used as a reference voltage. Normally, the reference voltage is set higher than the negative terminal side due to the relationship between the resistance values, and the comparator 62 outputs an H (high) signal to the IC 61.

When the line L3 is disconnected, the resistor R1 is not connected, so that the voltage input to the minus terminal of the comparator 62 becomes higher and becomes higher than the reference voltage side, and the comparator 62 outputs the L (low) signal. IC61
Output to When the comparator 62 outputs the L signal, the IC 61 detects that the line L3 is disconnected.

Next, the fire determination signal will be described. The positive terminal of the comparator 63 is connected to the resistor R
9. The voltage divided by R1 is input via the resistor R15. On the other hand, a voltage determined by the resistor R12 and the zener diode Z1 is input to the minus terminal of the comparator 63, and this voltage is used as a reference voltage. In normal times, the reference voltage is set lower than the plus terminal side, and the comparator 63 outputs an H signal to the IC 61. When the confirmation switch 44 is operated, or when the timer 41a times out without operating the confirmation switch 44, the photocoupler Pc1 is turned on, and the resistor R2 is connected in parallel with the resistor R1. As a result, the value of the current flowing through the line L3 increases, the voltage decreases accordingly, the voltage input to the plus terminal of the comparator 63 decreases, becomes lower than the reference voltage of the minus terminal, and the comparator 63 outputs an L signal. IC61
Is configured to output a fire determination signal when the L signal is output from the comparator 63.

Next, the disconnection detection processing and the fire notification processing in the fire notification equipment 100 will be described with reference to the flowchart of FIG. This process is started, for example, when the power of the repeater 20 is turned on.
, Normal fire monitoring begins. Then, step S
In FIG. 2, it is determined whether or not the line L3 is disconnected.
When the disconnection is detected by the disconnection detecting means 60, the process proceeds to step S3, where the fact that the disconnection is detected is stored in the storage unit 25. If it is determined in step S2 that no disconnection has been detected, and after step S3, step S2 is executed.
Move to 4. In step S4, the fire detector 5
It is determined whether or not any of 0 has been activated, and if the sensor has not been activated, the process returns to step S1. If the sensor has been activated in step S4, the process proceeds to step S5.

In step S5, it is determined whether or not the disconnection is stored in the storage unit 25. If the disconnection is stored in step S3, the process proceeds to step S10. If it is determined in step S5 that the disconnection is not stored, the process proceeds to step S6. In step S6, it is determined whether or not the line L3 is disconnected after the operation of the sensor. If the line L3 is disconnected, the process proceeds to step S10. If no disconnection has been detected in step S6, the process proceeds to step S7. Step S7
Then, it is determined whether or not a fire confirmation signal has been output from the house information panel 30 by either the operation of the confirmation switch 44 or the time-up of the timer 41a. Housing information panel 30
If a fire determination signal has been output from step S10, the process proceeds to step S10.

If it is determined in step S7 that the fire determination signal has not been output, the process proceeds to step S8, where it is determined whether or not the timer 23a of the repeater 20 has timed out. That is, if the timer 23a of the repeater 20 times out without a fire determination signal from the house information panel 30, the process proceeds to step S10. If the timer of the repeater 20 has not expired in step S8, the process proceeds to step S9. In step S9, it is determined whether a predetermined recovery operation has been performed. If the recovery operation has been performed, the process returns to the normal monitoring in step S1. If the recovery operation has not been performed, the process returns to step S5. In step S10, if after step S7, the house information panel 30
Through the repeater 20, or in steps S5 and S5.
6. After S8, a process of outputting a fire determination signal from the repeater 20 to the living building receiver 10 is performed. When this fire determination signal is received, in step S11, the living building receiver 10
More fire alarms are issued. Note that the restoration operation in step S9 is performed by an operation on the house information panel 30.

According to the fire alarm system 100 described above, the repeater 20 determines that the line is disconnected by detecting the disconnection detecting means 60 before and after the fire is detected by the sensor 50. Since the fire confirmation signal is generated and transmitted to the living room receiver 10 by itself, there is no need to wait for a predetermined time as in the prior art, and the fire confirmation signal is immediately transmitted to the living room receiver when a fire is detected. It is possible to quickly determine the occurrence of a fire and prevent the spread of the fire. Also,
When the line L3 is not broken, if there is a resident, the decision switch 44 is operated, and even if the resident is not present, the timer 41 is turned on.
Due to the time-up of a, the repeater 2 from the house information panel 30
The fire determination signal is reliably transmitted to 0.

In addition, the repeater 20 is always connected via the line L6.
Since the power is supplied to the house information panel 30 from, the operation related to disaster prevention of the house information panel 30 can be performed even during a power outage. Further, even when the line L3 is not broken and the fire determination signal is not transmitted from the house information panel 30 for other reasons, for example, a failure, the repeater 20 is controlled by the timer 2.
Since the fire determination signal is generated and transmitted to the living room receiver 10 by the time-up of 3a, the fire can be reliably determined and the fire notification can be made.

The present invention is not limited to the above embodiment,
It can be changed as appropriate. For example, in FIG. 2, the switching element is not limited to the photocoupler Pc1, but may be another transistor or a switch including a simple mechanical contact. The use of a mechanical switch also has the following advantages. Power is constantly supplied to the lines L3 and L4 connected to the repeater 20 to which power is constantly supplied from the living building receiver 10. Therefore, if the decision switch is a mechanical switch, such as a photocoupler, which is brought into a conductive state by human work without depending on the power supply in the house information panel, the power supply to the house information panel via the line L6 is not performed. Even if power is not supplied to the house information panel itself at the time of the power failure of the regular power supply 34, the confirmation switch can be operated.

The repeater 20 according to the above-described embodiment is configured so that when a disconnection is detected before the operation of the sensor, the relay unit 20 stores the disconnection in the storage unit 25 and responds to the disconnection only on the repeater side. You may be comprised so that the fact may be previously transmitted to a living-house receiver. In the case of such a configuration, a display indicating that the disconnection has occurred may be performed in the living room receiver. In addition, the timer 23a in the repeater may be configured not to start when the detector activation signal is input when the disconnection of the line L3 is detected.

[0040]

According to the first aspect of the present invention, when the relay detects that a fire has been detected by the fire detector, the repeater determines that the line is disconnected by detecting the disconnection detecting means, and determines that the fire has occurred. Since the signal is generated and sent to the living room receiver, the repeater immediately sends a fire confirmation signal to the living room receiver when it detects a fire when the wire breaks, instead of waiting until a predetermined time elapses as in the past. , It is possible to quickly determine the occurrence of a fire and prevent the spread of the fire.

According to the invention of claim 2, according to claim 1,
In addition to the effects of the invention described in the above, when the predetermined line is not broken, if there is a resident, the fire confirmation switch is operated, and even if there is no resident, the timer of the house information panel timer is timed up, so that it is ensured. A fire confirmation signal is transmitted to

According to the fourth aspect of the present invention, even if a power failure occurs in the dwelling unit, power is supplied to the house information panel from the repeater, so that operations relating to disaster prevention of the house information panel can be performed.

According to the invention set forth in claim 5, according to claim 1,
In addition to the effects of the inventions of (1) to (4), also in the case where the predetermined line is not broken and the fire determination signal is not transmitted from the house information panel due to other reasons, for example, failure, the repeater transmits the fire determination signal. Since it is generated by itself and transmitted to the receiver of the house, it is possible to reliably determine the fire and to report the fire.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of a fire alarm system for an apartment house according to the present invention.

FIG. 2 is a circuit diagram showing a disconnection detecting means provided in the fire alarm system of FIG.

FIG. 3 is a flowchart showing a disconnection detection process and a fire notification process performed by the repeater of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Residential building receiver 20 Repeater 21 District circuit 23 Processing circuit 23a Timer (repeater timer) 24 Transmission / reception interface 25 Storage part 26 Transmission / reception interface 30 House information board 40 Fire alarm circuit part 41 Processing circuit 41a Timer (Timer for house information board) ) 42 District circuit 44 Confirmation switch (fire decision switch) 45 Transmission / reception interface 50 Detector (fire detector) 100 Fire alarm system (fire alarm system for apartment house) 101 Dwelling unit L1, L2, L3, L4, L5, L6 Track

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kazuyoshi Sakurai F-term (reference) in Nittan Co., Ltd. 1-11-6 Hatagaya, Shibuya-ku, Tokyo 5C087 AA23 AA37 BB03 BB74 CC02 CC05 CC48 DD04 DD26 FF01 FF03 FF04 FF06 FF10 FF14 FF20 FF24 GG23 GG30 GG40 GG41 GG55 GG56 GG57 GG70 GG72 5G405 AA03 AC01 BA01 CA15 CA19 CA32 CA37 DA07 DA11 DA13 DA17 EA27 EA31

Claims (6)

[Claims] 1. A fire detector, a repeater connected to the fire detector, and a housing information panel connected to the repeater are provided in each dwelling unit. When the fire alarm is detected by the fire detector, the house information panel receives a detector activation signal output from the repeater,
Notifying the fact to the dwelling unit, and transmitting a fire determination signal for determining the occurrence of a fire according to predetermined conditions to the repeater via a predetermined line, and upon receiving the fire determination signal from the housing information panel, the repeater In a fire alarm system for an apartment house configured to transmit a signal to a living building receiver, the repeater is provided with a disconnection detecting means for detecting disconnection of the predetermined track, and the relay is a fire detector. When a fire is detected by
A fire alarm system for an apartment house, wherein the fire alarm system generates a fire confirmation signal by itself and transmits the signal to a receiver of a living building when it is determined from the result of detection by the disconnection detecting means that the line is in a disconnected state. 2. A house information panel includes a fire determination switch which is operated when a resident who knows that a fire has been detected by the fire detector confirms the fire, and a predetermined switch from the time when the detector operation signal is received. A timer for a house information panel that measures time is provided, and the house information panel is operated by operating a fire confirmation switch, or when a predetermined time has elapsed by measurement of the house information panel timer without operating the fire confirmation switch, The fire alarm system according to claim 1, wherein the fire alarm system transmits a fire determination signal. 3. The fire alarm system for an apartment house according to claim 1, wherein the disconnection detecting means determines the presence or absence of the disconnection based on a change in a voltage signal. 4. The power supply is supplied to the house information panel from the repeater at least at the time of a power failure in the dwelling unit.
4. The fire alarm system for an apartment house as described in any one of to 3 above. 5. The repeater is provided with a repeater timer for measuring a predetermined time from the time when the sensor operation signal is transmitted, and the repeater operates when the disconnection is not detected by the disconnection detecting means. If the fire information signal is not sent from the house information panel even after the specified time
The fire alarm system for an apartment house according to any one of claims 1 to 4, wherein the fire alarm system generates the fire determination signal by itself and sends the signal to the receiver of the house. 6. The fire alarm system according to claim 2, wherein the fire determination switch is a mechanical switch.