JPH0444997B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a so-called R-type smoke prevention integrated fire alarm system.

[Background technology] Conventionally, when a fire alarm system was activated, a district bell would ring, which would ring the district bells in the area where the alarm was issued and the areas directly above it, and issue an evacuation warning. However, if the administrator went to the scene of the alarm and determined that there was no fire, the district had no means of de-ringing the district bell, so he had to go back to the receiver and de-ring it. It was hot. In this case, before investigating the non-fire cause, the manager had to rush back to the receiver location to prevent panic among those who heard the ringing of the district bell.
Additionally, if the district bell was stopped at the receiver side as a countermeasure, it had the fatal drawback of not being able to alert you in the event of an actual fire.

[Object of the Invention] The present invention has been made in view of the above-mentioned problems, and its purpose is to quickly stop the ringing of the district bell using a repeater at the confirmed location when a non-fire is confirmed; To provide a self-fire alarm system capable of preventing panic situations from occurring.

[Disclosure of the Invention] The present invention provides a sensor with an address that is connected to a receiver via a signal transmission line, exchanges information with the receiver through multiplex transmission, and is connected via a sensor line; A repeater that detects alarms from general sensors and exchanges information with addressable sensors through multiplex transmission is installed at a designated location in the building, and each repeater is equipped with at least a corresponding repeater. In a self-fire alarm system that is connected to a district bell that rings when there is a fire alarm, when it is turned on when a non-fire is confirmed, the fire alarm system is linked to the district bell connected to the repeater that set off the alarm and the repeater that set off the alarm. Each repeater shall be equipped with a non-fire switch that stops the ringing of district bells connected to other repeaters, and the non-fire switch shall be installed in a location where it is not easy to operate, such as inside the repeater. This is a characteristic feature.

The present invention will be explained below with reference to Examples. Figure 1 shows the overall configuration of the self-fire alarm system using this embodiment. Signal transmission for multiplex transmission is performed between the receiver 1 and the repeater 2 installed on each floor of the building where it is installed. Line 3 and telephone line 4 for intercom
and are connected through. The repeater 2 is connected to a sensor line 5, a smoke prevention equipment control line 6, and a district bell control line 7. The sensor line 5 has a general sensor 8 that changes the line signal level of the sensor line 5 when it detects that the level of fire-generating elements such as smoke or heat has exceeded a certain level, and a separate address. It is connected to a sensor 9 with an address that issues an alarm by changing the line signal level in the same way as the general sensor 8, and also transmits alarm information by multiplex transmission.
1 is connected.

Now, FIGS. 2 and 3 show the surface of the receiver 1 and the surface of the repeater 2, respectively.
A district display section 15 that displays the fire occurrence location of the alarm using text characters, the number of alarms from the detectors 9 with addresses on the same line, and the presence or absence of interlocking occurrences on the same line, and a representative display that displays the fire and interlocking. A display unit 16, an alert area display unit 17 that displays alert areas on other lines on the same floor (same repeater), an indicator light 40 that lights up when there are too many area displays, and displays that are sent at this time. Forward switch SW ₁₀ and alarm area display section 18 that displays alarm areas on other floors
, an indicator light 41 that lights up when the floor display of the alarm area display section 18 is excessive, a display advance switch SW ₁ that advances the display at this time, and a general sensor or address transmitter 11 that displays the alarm. Display section 19;
Display unit 20 that displays the number of controls for smoke prevention equipment 13
, a display section 21 that displays the number of smoke prevention and exhaust devices 13 activated by smoke prevention control, a fire determination switch SW ₂ that is turned on when an actual fire is confirmed, and a printer 23 that records alarms, operations, etc. and an intercom 22 for communicating with each repeater 2.
It is equipped with The intercom 22 has a display section 24 that displays the building number and floor number of the repeater 2 to which the call is being made.
, a call light 25 that lights up when there is a call from the repeater 2, and a call light 2 that indicates that a call is in progress.
6, a call switch SW ₃ that is operated at the start and end of a call, and a forwarding switch SW ₄ for sending the display contents of the display section 24. The operation/display unit 10 is used for displaying a power supply display, etc., and for performing operations such as restoration, stopping of the district bell 12, the main bell 14, etc. On the other hand, the repeater 2 includes a representative indicator light 27 that displays the occurrence of a fire, a district display section 28 that displays the location of the fire in characters, and an excessive display light 29 that displays this when there is a fire alarm in two or more districts. , an interlocking indicator light 30 that indicates whether or not the display area is interlocked, a transmitter light 31 that indicates the operation of the general transmitter or addressable transmitter 11 of the repeater 2, and a transmitter light 31 that indicates the operation of the general transmitter or addressable transmitter 11 of the relay 2, and when a real fire occurs or when a real fire is discovered. Operate the fire switch SW ₅ to forcibly cancel the interlocking of the district bell and smoke control that have already been stopped.
A low-volume floor station buzzer 35 and an intercom 37 are installed on the upper surface panel to sound when information indicating that an alarm has been issued by the repeater 2 or another repeater 2 is received. 4
2, the internal panel is exposed to the outside when the fire alarm is activated, and includes a non-fire switch SW ₆ that stops the ringing of the district bell 12 when there is a non-fire alarm, and a fire line indicator light 32 that individually displays the fire alarm line. and an operation unit 33 that individually operates the connected smoke prevention equipment 13.
, a display section 34 that individually displays the operation of the smoke prevention equipment 13, a release switch SW ₇ that stops the sound of the floor station buzzer 35, and other repeaters 2.
A floor fire indicator light 36 that lights up when information indicating that an alarm has been issued at Switch SW ₈ and
The display contents of the fire line indicator light 32 are displayed in the district display section 28.
A display advance switch SW ₉ is provided to send the display on the district display section 28 in the order in which the alarms are issued. The intercom 37 has a call button 38 and a call light 3.
9.

Next, the operation of this self-fire alarm system in the alarm processing will be explained.

First, the receiver 1 sequentially calls each repeater 2 by multiplex transmission, and information is exchanged between the receiver 1 and the called repeater 2, and the repeater 2 changes the signal level of each sensor line 5. Along with monitoring, the addressable sensors 9 are sequentially called by multiplex transmission to exchange information.

When the signal level of the sensor line 5 changes and an alarm is detected, the repeater 2 first interrupts the boring by multiplex transmission with the receiver 1.
Then, the number of the sensor line 5 that issued the alarm and if the sensor is a sensor 9 with an address, the address of the sensor is stored. The repeater 2 displays the occurrence of a fire on the representative indicator light 27, displays the building, floor number, and district number of the corresponding building from the alarm line in numbers on the district display section 28, and at the same time sends a control signal to ring the district bell 12. occurs. When line interlocking is set, a control signal for operating the corresponding smoke prevention equipment 13 is output. Also, the floor station buzzer 35 provided in the repeater 2 is made to sound.

On the other hand, on the receiver 1 side, the address of the repeater 2 that made the interrupt request is indexed and the repeater 2 of that address is
call. The called repeater 2 returns information such as the number of the alarm line and the address of the alarm sensor, as well as interlock operation information if there is an interlock setting. In the receiver 1, based on the returned information, the representative display section 16 displays the fire indication and whether or not there is an interlock, and the district display section 15 displays the location where the alarm was issued. In addition, when detecting that interlocking is set, receiver 1 indexes the interlocking table (other than alarm repeaters) and transmits a smoke prevention and exhaust control command for interlocking between repeaters to target repeater 2 by multiplex transmission. At the same time, a control command to ring the floor station buzzer 35 is transmitted to repeaters 2 other than the relevant repeater 2 by multiplex transmission, and a control command to ring the district bell 12 is multiplexed to the repeater 2 on the floor immediately above the alarm point. Transmit by transmission. When a fire alarm is confirmed and the fire determination switch SW ₂ is turned on, the main bell 14 will ring, and if the ringing of the district bell 12 is stopped or the smoke prevention interlocking stop is activated, this signal will be forcibly canceled. is transmitted to each repeater 2 by multiplex transmission.

In addition, when a general transmitter or a transmitter with an address 11 generates an alarm, processing operations similar to those for a sensor alarm are performed, and the receiver 1 side displays a fire display and the location of the alarm on the alarm area display section 17. indicate.

By the way, when an alarm is raised, the administrator goes to the location displayed on the district display section 15 to confirm whether the alarm was caused by an actual fire or a non-fire. If the alarm is confirmed to be caused by a non-fire, the manager presses the door button 43 of the nearest repeater 2 to unlock the door 42, opens the door 42, and activates the non-fire switch installed inside.
It is best to operate SW ₆ . Easy non-fire switch by unlocking by operating the door 42 and door button 43.
This prevents SW ₆ from being manipulated. By the way, as shown in Fig. 4, when the repeater 2 receives an alarm, it rings the district bell 12 and sends alarm information, and the receiver 1 transmits the alarm information to the repeater 2 on the floor directly above the district bell 1.
A state in which a control command for making the receiver 1 ring is sent by multiplex transmission, and a check is made to see if the non-fire switch SW ₆ is operated, and a check is made to see if there is a command to stop the ringer from the receiver 1 side. It's getting old. However, when the non-fire switch SW ₆ is operated, it immediately stops ringing the district bell 12, sends operation information to the receiver 1, and causes the district bell 12 on the floor immediately above to ring by multiplex transmission from the receiver 1. Also stop. Then, while maintaining this stop, a state is entered in which it is checked whether there is a fire alarm in the relay 2 or whether a non-fire release command is received from the receiver 1 side. The non-fire release command from the receiver 1 side is provided to prioritize information from the receiver 1 side and ensure safety. It is transmitted in cases such as when When the above-mentioned non-fire cancellation command is received or an alarm is issued within the same repeater 2 while the ringing is stopped, the repeater 2 immediately cancels the ringing stopped state and causes the district bell 12 to ring.

In addition, the receiver 1 operates and stops the ringing of the district bell 12 by receiving the operating information of the non-fire switch SW ₆ .
It is displayed on the display unit 10 and can be confirmed on the receiver 1 side. Also non-fire switch
The operation of SW ₆ only causes the district bell 12 to stop ringing, and the system is restored on the receiver 1 side.

[Effects of the Invention] In the self-fire alarm system configured as described above, the present invention provides a fire alarm system that, when turned on when a non-fire is confirmed, is linked to the district bell connected to the repeater that triggered the alarm and the repeater that triggered the alarm. Each repeater is equipped with a non-fire switch that stops the ringing of district bells connected to other repeaters, so if the manager confirms a non-fire on the scene, he can immediately return to the receiver side. The ringing of the district bell can be stopped by operating the non-fire switch of the repeater on the spot, and non-fire measures can be taken quickly before a panic occurs, and the non-fire switch is installed. Since the location is set in a place where it is difficult to operate, such as inside the repeater, it is possible to prevent the ringing from being erroneously stopped due to easy operation.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram of the entire self-fire alarm system of the present invention, Figs. 2 and 3 are front views of the receiver and repeater of the embodiment of the present invention, and Fig. 4 is an explanation of the main operations of the same. 1 is the receiver, 2 is the flowchart for
is a repeater, 3 is a signal transmission line, 4 is a telephone line, 5 is a sensor line, 8 is a general sensor, 9 is a sensor with an address, 12 is a district bell, 42 is a door, 43 is a door button, SW ₆ is a non-fire switch.

Claims (1)

[Claims] 1. Connected to the receiver via a signal transmission line, exchanging information with the receiver through multiplex transmission, and issuing alarms from addressable sensors or general sensors connected via the sensor line. A repeater is installed at a predetermined location in the building to detect and exchange information with the addressable sensor through multiplex transmission.
In a self-fire alarm system in which each repeater is connected to at least a district bell that rings when the corresponding repeater is activated, the repeater that sounds when activated when a non-fire is detected, etc. Each repeater is equipped with a non-fire switch that stops the ringing of the connected district bell and other district bells connected to other repeaters that ring in conjunction with the repeater that triggered the alarm, and the installation location of the non-fire switch is installed on the repeater. A self-fire alarm system characterized in that it is installed in a place where it is difficult to operate, such as inside a car.