JPH07116285A - Sprinkler fire extinguishing system - Google Patents

Abstract

PURPOSE:To execute monitor and control with each of respective plural buildings by constituting the system in such a manner that the monitor panel for each of the respective buildings receive the monitor signals of area valve devices from sprinkler repeaters and transmit control signals to the sprinkler repeaters in accordance with fire signals and that an central monitor panel connected to all the monitor panels monitors and controls the respective monitor panels. CONSTITUTION:Fire detectors 1a1, 1b1, 1c1 are electrically connected via respective common signal lines 5a, 5b, 5c to fire signal receivers 4a, 4b, 4c for respective buildings. These fire signal receivers 4a, 4b, 4c are electrically connected via signal lines 13a, 13b, 13c to the monitor panels 80a, 80b, 80c for each of the respective buildings. The monitor panels 80a to 80c are electrically connected via a common signal line LAN to the central monitor panel CP. Addresses are attached equally in serial numbers to the central monitor panel CP and each of the monitor panels 80a, 80b, 80c for each of the respective buildings so that transmission and reception of call signals and return signals, etc., are executed via the common signal line LAN between the central monitor panel CP and the monitor panels 80a, 80b, 80c for each of the respective buildings.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sprinkler fire extinguishing equipment used in a plurality of buildings such as buildings, and more particularly to a sprinkler fire extinguishing equipment equipped with a dedicated sprinkler repeater and a monitoring panel.

[0002]

2. Description of the Related Art As a sprinkler fire extinguishing equipment used in combination with a fire detector, for example, JP-A-4-276 is known.
The one disclosed in Japanese Patent No. 271 is conventionally known. The conventional sprinkler fire extinguishing equipment disclosed in this publication is opened by a fire signal from a fire detector,
It is equipped with a regional valve device that supplies the fire extinguishing water from the primary side pipe to the sprinkler head via the secondary side pipe.

[0003]

However, since the conventional sprinkler fire extinguishing equipment is not provided with a dedicated sprinkler repeater or monitoring panel, the state of the regional valve device and its state change are remotely monitored at the disaster prevention center. There was a problem that I could not do it. Therefore, in addition to monitoring and controlling (or only monitoring) the state of a regional valve device by a sprinkler repeater, and transmitting and receiving information to and from the sprinkler repeater by a monitoring panel, the present invention is applicable to each of a plurality of buildings. The purpose is to obtain a sprinkler fire extinguishing system that can monitor and control (or only monitor).

[0004]

The invention according to claim 1 is
A sprinkler fire extinguishing facility used in combination with fire detection means, comprising a water supply main extending through a plurality of floors of each of a plurality of buildings such as a building and branching from the water supply main to each of the plurality of floors. Branch pipes that extend in parallel with each other, a large number of sprinkler heads provided on the branch pipes of each floor, and a regional valve that is provided between the water supply main pipe and each of the branch pipes and supplies fire water to the plurality of sprinkler heads. The equipment, the sprinkler repeater electrically connected to each district valve device and monitoring the state and controlling each district valve device, and a signal line common to all the fire detection means and the sprinkler repeater. Connected to each sprinkler repeater to transmit and receive information by coded signal to each building monitoring panel, and connected to all monitoring panels via a common signal line. There is an operation unit that receives an operation input for monitoring and controlling the reticle and a display unit that displays various types of information, and a monitoring panel for each building and a general monitoring panel that transmits and receives information by a coded signal. Be prepared.

According to a fourth aspect of the present invention, there is provided a water supply main extending through a plurality of floors of a plurality of buildings such as a building, and a branch pipe extending from the water supply main while branching into each of the plurality of floors. And a plurality of sprinkler heads provided on the branch pipes of each floor, and a district valve device provided between the main water supply pipe and each branch pipe to supply fire extinguishing water to the plurality of sprinkler heads, and each district A sprinkler repeater that is electrically connected to each of the valve devices and monitors the state of the sprinkler repeater is connected to all the sprinkler repeaters via a common signal line to transmit / receive information in a coded signal to / from each sprinkler repeater. Displays the monitoring panel for each building and the operation panel that is connected to all the monitoring panels through a common signal line and accepts operation inputs for monitoring and controlling the monitoring panel for each building and various information Display The a, the is obtained a comprehensive monitoring panel for transmitting and receiving information by the monitoring panel and the coded signal for each building.

[0006]

According to the first aspect of the invention, the sprinkler repeater provided on each floor of each building of the building monitors the condition of the corresponding regional valve device and controls the corresponding regional valve device,
The monitoring panel provided for each building receives the monitoring signal indicating the status of the corresponding regional valve device from the corresponding sprinkler repeater, and from the fire detection means via the fire receiver or directly from the fire detection means. A control signal is transmitted to the corresponding sprinkler repeater based on the received fire signal, and a general monitoring board connected to all the monitoring boards monitors and controls each monitoring board.

According to the invention of claim 4, the sprinkler repeaters installed on each floor of each building of the building monitor the status of the corresponding area valve device, and the monitoring board installed in each building monitors the corresponding area. A monitor signal indicating the state of the valve device is received from the corresponding sprinkler repeater, and a general monitor board connected to all the monitor boards monitors and controls each monitor board.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to an embodiment shown in the accompanying drawings. FIG. 1 is a schematic configuration diagram showing a main part of an embodiment of a sprinkler fire extinguishing facility according to the present invention. In FIG. 1, a, b, and c represent a plurality of buildings such as buildings, for example, a building, b building, and c building, respectively. Reference numeral 1 denotes a fire detecting means, for example, a fire detector, which is provided in a large number (only one is shown in FIG. 1) on each floor of each building.
a1 and 1a2 represent fire detectors provided on the first and second floors of the a building, respectively, and 1b3 and 1c4 represent b respectively.
Shows the fire detectors installed on the 3rd floor of the building and the 4th floor of the c building.
These fire detectors 1a1 ..., 1b1 ..., 1c1
Are electrically connected to the fire receivers 4a, 4b, 4c for each building via common signal lines 5a, 5b, 5c, respectively. The fire receivers 4a, 4b, 4c are electrically connected to the monitoring boards 80a, 80b, 80c of each building via signal lines 13a, 13b, 13c, respectively. These monitoring boards 80a-80c are electrically connected to the general monitoring board CP via a common signal line LAN.

Although not shown, the common signal line LAN is composed of a pair of signal lines, that is, a main loop signal line for transmitting a signal in one direction and a sub loop signal line for transmitting a signal in the other direction. These are two lines of signal lines connected in a loop. The general monitoring board CP and the monitoring boards 80a, 80b, 80c for each building are serially numbered with equal addresses, and the general monitoring board CP and the monitoring boards 80a, 80b for each building are provided. A call signal, a return signal, and other control signals are transmitted and received between the 80c via a common signal line LAN. In this case, the same signal is sent to the main loop signal line and the sub loop signal line (not shown) of the common signal line LAN to match the received contents. With this configuration, generally, the general monitoring boards CP sequentially and cyclically send out call signals, and the called monitoring boards return status information and the like to the general monitoring boards CP, so that the respective monitoring boards are normally connected. Have confirmed that.

Each of the monitoring boards 80a, 80b, 80c also has sprinkler repeaters 50a1-50a4 ..., 50b1 via common signal lines 12a, 12b, 12c, respectively.
˜50b4 ..., 50c1-50c4 ... Each sprinkler repeater 50a1-5
0a4 ..., 50b1 to 50b4 ..., 50c1
50c4 ... are corresponding regional valve devices 20a1
... 20a4 ..., 20b1-20b4 ..., 20c
1 to 20c4 ... Are electrically connected.

In FIG. 1, each fire receiver 4a, 4a
b and 4c are fire detectors 1a1 to 1a4 ..., 1b1
Although fire signals are received from 1b4 ..., 1c1 to 1c4 ..., even if each fire receiver is omitted and the monitoring panels 80a, 80b, 80c of each building receive fire signals. Alternatively, the general monitoring board CP may receive the fire signal and notify the monitoring boards 80a, 80b, 80c of each building.

FIG. 2 is a schematic configuration diagram showing another main part of an embodiment of the present invention. In FIG. 2, B1F, 1F,
2F, 3F, 4F, ... Represent a plurality of floors of each building, for example, the ground floor, the first floor, the second floor, the third floor, the fourth floor ... First, the automatic fire alarm facility will be described. The fire detector 1 described above is provided in large numbers on each floor of the building. Reference numeral 2 denotes a fire repeater provided for each floor, which is connected to a plurality of fire detectors 1 provided for each floor via a signal line 3. The above-mentioned fire receiver 4 is arranged, for example, in a disaster prevention center (not shown) on the first floor 1F, receives a fire signal from the fire detector 1, and receives the fire signal from the fire repeater 2 on each floor via a common signal line 5. It is connected. In addition, equipment necessary for automatic fire alarm equipment such as district audio equipment is provided, but description thereof is omitted here.

Next, the sprinkler fire extinguishing equipment (hereinafter referred to as NS system) of the present invention will be described.
This NS system uses the above-described automatic fire alarm system and a fast-moving sprinkler head (hereinafter referred to as NS head) that has a high thermal response speed in order to quickly extinguish the fire and minimize water damage due to the fire and fire. It is a new sprinkler system for extinguishing with a small amount of water in the early stages of a fire. In FIG. 2, 6 is a water supply main that extends through a plurality of floors, and 7 is a branch pipe that branches from the water supply main 6 for each floor. Reference numeral 8 denotes a large number of NS heads provided on each branch pipe 7, which has a dramatically faster thermal response speed than a conventional sprinkler head (not shown), and is designed to detect an initial fire and extinguish it. It is a thing. In addition, the idea of increasing the thermal response speed is to improve the heat receiving efficiency and reduce the heat loss, in other words, to reliably capture the heat of the fire without letting it escape to the other. Specifically, the NS head 8 has a standard water discharge pressure of 1 kg /
cm ² , flow rate 50 liters / min, floor area 2.
1 m ² per one installed, also need only installed per floor area 1.3 m ² is for restaurant small compartments, has a wider sprinkling area with less water discharge amount, to reduce the water spray density However, it can exhibit sufficient fire extinguishing ability. Further, a water source (not shown) and a pump unit 9 are provided near the lower end of the main water supply pipe 6.

Reference numeral 20 denotes a regional valve device (hereinafter referred to as an NS valve unit) provided between the main water supply pipe 6 and each branch pipe 7 for supplying fire extinguishing water to a large number of NS heads 8. The details of FIG. 5 will be described later. Reference numeral 50 denotes a sprinkler repeater (hereinafter, referred to as an NS repeater) provided for each NS valve unit 20.
It is connected to the valve unit 20 via the signal line 11, and will be described later in detail with reference to FIG. Reference numeral 80 denotes a monitor panel (hereinafter referred to as an NS monitor panel) arranged in the above-mentioned disaster prevention center, which is connected to all the NS repeaters 50 via the common signal line 12 and the fire receiver 4 And signal line 13
8 and will be described later in detail with reference to FIG.

The NS system of the present invention is configured as described above, and in FIG. 1, a fire, for example, occurs on the second floor of the a building, and therefore at least the fire detectors 1a2 provided on the second floor at least. If one fires and generates a fire signal, this fire signal is transmitted to the fire receiver 4a via the common signal line 5a. Then, the fire receiver 4a transmits the received fire signal to the NS monitoring board 80a via the signal line 13a after performing floor-based fire signal processing.

The NS monitoring board 80a is connected via the common signal line 12a to the NS repeater 50 which is provided on the second floor in this case.
The coded control signal is addressed to and transmitted to a2, and the NS relay 50a2 further transmits the control signal to the corresponding NS valve unit 20a2 via the signal line 11a2, thereby waiting for the NS valve unit 20a2. Put in a state. The standby state of the NS valve unit 20a2 means that the NS valve unit 20a can be immediately sprinkled by opening the NS head 8.
It is to put 2. After that, when the NS head 8 is opened by the heat of the fire, the pressurized fire extinguishing water whose pressure is automatically adjusted to the set pressure starts to be discharged from the NS head 8. Simultaneously with the start of the water discharge, the NS valve unit 20a2 sends the coded running water signal to the N relay unit 50a2 through the N relay unit 50a2.
The data is transmitted to the S monitoring panel 80a and further to the general monitoring panel CP via the common signal line LAN together with its own address, so that the water discharge warning is displayed on the general monitoring panel CP. Further, when the NS head 8 starts discharging water, the pump unit 9 is automatically started so that the fire extinguishing water is supplied from the water source to the pump unit 9.
Water is continuously discharged from the NS head 8 through the water supply main 6, the NS valve unit 20a2, and the branch pipe 7.

FIG. 3 is a diagram showing an example in which the NS repeater 50 in each building is divided into a plurality of groups. In this example, the NS repeater 50-B1 is provided via the signal line 12 common to the NS monitoring board 80.
F to 50-5F are connected, the group G1 is composed of only NS relays 50-B1F, the group G2 is composed of NS relays 50-1F and 50-2F, and the group G3 is N.
S repeaters 50-3F and 50-4F, and group G4 consists only of NS repeaters 50-5F. In this way, the number of groups and the number of NS repeaters in each group can be arbitrarily determined.

The NS monitoring board 80 is an NS repeater 50-B1.
The system polling, point polling, and selecting described later are performed on F to 50-5F to collect predetermined information from a predetermined NS repeater and control a predetermined NS repeater.

Here, the system polling is not polling each of the NS relays 50-B1F to 50-5F, but dividing these NS relays into four groups and polling each group. In this polling, a response timing is given to each group, and a group having an NS repeater that detects a change in the state of the corresponding NS valve unit responds to the NS monitoring board 80 at the response timing. Point polling is polling for each NS repeater within the group only for the group that responds to the NS monitoring panel 80 in system polling. The NS relay that gives a response timing to each NS repeater and detects the state change This is polling in which the repeater responds to the NS monitoring board 80 at the response timing. The selecting means collecting predetermined information from the NS relay responding to the NS monitoring board 80 in point polling, or transmitting a predetermined control signal to the NS relay responding to the NS monitoring board 80 in point polling. It is a thing.

FIG. 4 is a diagram for explaining the operation example of FIG.
The operation proceeds from the upper left to the upper right of FIG. 4, and the operation proceeds from the right end to the left end of the next lower stage, and in this manner, the processing sequentially proceeds. Further, in FIG. 4, the operation above the horizontal line shows the operation of the NS monitoring board 80, and the operation below the horizontal line shows the operation of the NS repeater. Further, in FIG. 4, the broken line frame indicates that no response was made at the response timing, and the bold line frame indicates that the response was made at the response timing. That is, the bold frame indicates the NS repeater that has detected the state change compared to immediately before the response timing (or the group having the NS repeater that has detected the state change).

First, at P1 in FIG. 4, system polling is performed. That is, the NS monitoring board 80 sends the address SPAD indicating the system polling and the status information return command CM1 for returning the status information to the groups G1 to G4, and then sequentially sends the timings for returning the status information to the groups G1 to G4. ,give. Each of the groups G1 to G4 responds by returning a pulse signal to the NS monitoring board 80 at the timing of its own response only when the NS repeater in its own group detects a state change. In the example shown in FIG. 4, since the NS relay 50-2F detects the state change, only the group G2 responds to the NS monitoring board 80. As a result, the NS monitoring board 80 causes the NS repeater 50-1F or 50-2 belonging to the group G2.
It can be understood that F has detected the state change and has the state information to be sent to the NS monitoring board 80.

Next, at P2, point polling is performed. That is, the NS monitoring board 80 sends the address GAD of the group to be polled and the status information return command CM1 to the NS repeater belonging to the group. In the case of the above example, the address GAD (2) and the status information return command CM1 are sent to the NS relays 50-1F and 50-2F. Then, the timings for returning the status information are sequentially given to these NS repeaters. Each NS repeater responds by sending back a pulse signal to the NS monitoring board 80 at the time of its own response only when it detects a state change. Since the NS relay 50-2F detects the state change at the time of the point polling, this N
Only the S repeater 50-2F responds to the NS monitoring board 80.
As a result, the NS monitoring board 80 becomes the NS repeater 50-2F.
Can detect that the NS relay 50-2F has status information to be sent to the NS monitoring board 80.

Next, in P3, selecting is performed. In other words, the NS monitoring panel 80 is the NS that issued the response signal.
The address SAD of the repeater and the status information return command CM1 are transmitted. In the case of the above example, since the response signal is received from the NS relay 50-2F, the NS monitoring board 80 sends out the address SAD (2F) of the NS relay 50-2F and the status information return command CM1. On the other hand, the NS repeater 5
0-2F displays the self address SAD (2F) and the desired data DA (for example, a secondary pressure drop signal) to be sent to the NS monitoring board 80.
Send to.

When the NS monitoring board 80 receives the data DA, the address SAD (2F) and the received data DA are received.
And the NS repeater 50-2F receives the data DA, collates the data DA sent immediately before itself with the data DA received at that time, and when both data match, the data DA It is sent again to the NS monitoring board 80.
If the data DA received at the first time matches the data DA received at the second time, the NS monitoring board 80 determines that the data DA is the data D sent by the NS repeater 50-2F.
Recognize as A. Then, the NS monitoring board 80 performs necessary processing such as display and simple alarm based on the received data DA. After this, the system returns to the normal state and the above system polling is repeated.

In the above example, point polling and selecting are each performed twice, but this is to prevent erroneous transmission due to induction noise or the like.

Next, the operation of inspecting the common signal line 12 for breaks will be described. In P01 of FIG. 4, system polling is performed once, and then NS relay 50-B1F
Selection for inspecting the disconnection of the signal line 12 is performed. That is, the NS monitoring board 80 is the NS relay 50-B1.
F address SAD (B1F) and specific information return command CM
2, the NS relay 50-B1F returns the self address SAD (B1F) and the specific information (type information CL indicating the type of the NS relay) to the NS monitoring board 80. When the NS monitor board 80 receives the type information CL from the NS repeater 50-B1F, the NS monitor board 80 determines that there is no disconnection in the signal line 12 from the NS monitor board 80 to the NS repeater 50-B1F. Then, after performing system polling once and confirming that there is no NS relay that has detected the state change, the same disconnection inspection as described above is performed on the NS relay 50-1F. In this way, for each of the NS repeaters 50, the disconnection inspection of the signal line 12 from the NS monitoring board 80 to the NS repeater 50 is performed, and system polling is executed once during that time. In this system polling, if any group responds, of course, point polling is performed for that group,
Make the necessary selections.

The type information CL includes information indicating a pump unit repeater, an auxiliary sprinkler repeater, etc., which will not be described in detail except for the NS repeater. Thus, if the NS monitoring board 80 collects the type information as the specific information, the type of the NS relay 50 is changed at the same time as the presence or absence of the connection of the NS relay 50 on the side of the NS monitoring board 80. Can be known from the NS monitoring board 80. In the above example,
Since the disconnection discrimination selecting is executed every time the system polling is performed once, the NS repeater 50-B
To monitor all 1F to 50-5F, it is necessary to perform system polling 16 times. The disconnection determination may be performed every time system polling is performed a predetermined number of times.
The disconnection determination may be performed every predetermined time, and
The disconnection discrimination selecting of a plurality of NS repeaters 50 may be performed at one time. In addition, for the same NS repeater 50,
Performing disconnection discrimination selection twice in succession can prevent erroneous discrimination due to induced noise. Further, the specific information may be information other than the type information, for example, a specific code.

FIG. 5 shows the N used in one embodiment of the present invention.
It is a schematic block diagram which shows the S valve unit 20. This N
The S valve unit 20 is an automatic valve having two types of functions of a pre-operation type automatic alarm valve and an automatic valve with a secondary pressure adjusting function, and is installed on each floor of the building as described above. In FIG. 5, reference numeral 21 is an NS valve, the primary side 22 of which is through the primary side pipe 23 and the water supply main pipe 6 described above.
Further, the secondary side 24 thereof is connected to the NS head 8 via the secondary side pipe 25 and the branch pipe 7 described above. Normally closed, but fire detector 1 (Fig. 2)
In response to the fire signal from the NS valve 21, which can be opened by the control signal from the NS monitoring panel 80,
An electric remote test valve 26 and a manual test valve 27 for testing water passage to the secondary side pipe 25 and pressurized fire extinguishing water in the primary side pipe 23 are adjusted to a predetermined pressure by adjusting the opening degree of the NS valve 21. A pressure-adjusting pilot valve 28 for adjusting the decompression and supplying it to the secondary side pipe 25, and an electrically-operated start valve 29 for constantly shutting off the pressurization and opening of the NS valve 21 to perform the transition operation to the above-mentioned openable state. Manual start valve 31 connected in parallel with this
And an exhaust pressure valve 32 for exhausting the abnormal pressurization of the secondary pipe 25.

The NS valve 21 includes a primary side 22 and a secondary side 2
The valve seat 33 that separates the valve 4 from the valve 4 is closed by a valve element 35 that is biased by a spring 34, and a piston 36 and a valve box 37 that are integral with the valve element 35 form a cylinder 38, which is activated. It is connected to the pressure regulating pilot valve 28 via a valve 29 or a manual start valve 31. The start valve 29
Is opened and closed by an electric section 29a such as a motor or an electromagnetic solenoid connected to the terminal block 39 by an electric path indicated by a broken line.

The pressure adjusting pilot valve 28 is connected to the secondary side pipe 25.
Secondary pressure is introduced into the operation chamber 28a through the pipe 25a, the primary pressure is taken from the primary side 22 of the NS valve 21 through the strainer (dust collector) 41 and the pipe 22a, and the pressure regulating action of the flam 28b and the spring 28c. By valve body 2
Adjust the opening of 8d, and connect the NS valve 2 through the pipe 22b.
The primary pressure is introduced into the No. 1 cylinder 38.

This pressure adjusting pilot valve 28 is designed to be N
It has a function of opening the S valve 21. That is, when the secondary pressure in the secondary pipe 25 introduced into the operation chamber 28a by the pipe 25a is lower than a predetermined pressure, the valve body 28d is opened by the pressure regulating action of the flam 28b and the spring 28c, The primary pressure is gradually introduced into the cylinder 38 via the opening valves 22a and 22b and the open starting valve 29 or the manual starting valve 31, the piston 36 is pushed up (to the left in the drawing), and the interlocking valve element 35 is moved. The fire extinguishing water flows from the primary side 22 to the secondary side 24. On the contrary, when the secondary pressure is higher than the predetermined pressure, the flam 28b
And the valve 28d is closed by the pressure regulating action of the spring 28c,
The inflow amount of the primary pressure is reduced, the pressure in the cylinder 38 is reduced, the piston 36 is lowered (to the right in the drawing), and the interlocking valve element 35 is closed, so that the primary side 22 to the secondary side 24 is closed. The inflow of fire extinguishing water is reduced, and this operation is repeated until the valve body 3
5 maintains a predetermined opening.

In this way, the opening degree of the NS valve 21 is adjusted, and the secondary pressure is adjusted to a predetermined pressure suitable for the fire extinguishing operation, for example, 3.5 kg / cm ² near the secondary side 24. The operation chamber 28a of the pressure regulating pilot valve 28 is connected to the secondary side pipe 25 by a pipe 25a through a small hole 28e in the piston portion of the valve body 28d that is opened for pressure regulation. As a result, the pressure in the secondary side pipe 25 is increased when the pressure regulating pilot valve 28 is opened, so that the pressure is regulated by the pressure regulating pilot valve 28 so that the pressure is constantly maintained at a predetermined pressure.
A small amount of primary pressure is replenished at the time of pressure drop due to temperature change of 5. At this time, the NS valve 21 is not opened, and thus the open signal (flowing water signal) is not generated. At the same time, the pressure flows into the back surface through the piston 36, and the sliding of the valve element 35 becomes slow, so that there is an effect that the pressure adjusting action is easily performed.

Therefore, when a fire occurs and the NS head 8 (FIG. 2) is opened, it is possible to immediately discharge water at a predetermined pressure suitable for fire extinguishing activities.
Due to the pressure regulating action of the pressure regulating pilot valve 28, the NS valve 2
1 is opened and the opening degree of the valve element 35 is adjusted, so that the secondary side pipe 25 is supplied with fire extinguishing water of a predetermined pressure suitable for fire extinguishing activities.

The remote test valve 26 and the manual test valve 27 are NS
The secondary side 24 of the valve 21 and the drain pipe 42 are connected in parallel with each other. The remote test valve 26 is opened / closed by an electric part 26a such as a motor or an electromagnetic solenoid connected to the terminal block 39 by an electric path shown by a broken line, and the same amount of fire extinguishing water as one NS head 8 is drained by the opening operation. The size of the opening is set so that The size of the opening of the manual test valve 27 is set so that the same amount of fire extinguishing water as that of at least one of the NS heads 8 is drained by the opening operation of the manual test valve 27.
It is confirmed whether the water pressure in the secondary side pipe 25 at the time of the drainage test is maintained at a predetermined pressure by the pointer of the pressure gauge 43 provided at.

The discharge pressure valve 32 discharges the fire extinguishing water to the drain pipe 42 when the fire extinguishing water introduced into the inside from the secondary side 24 exceeds the allowable pressure (a value slightly higher than a predetermined pressure), and the secondary side piping The pressure in 25 is maintained at a predetermined pressure. As described above, the secondary pressure is measured by the pressure gauge 43, but the primary pressure of the fire extinguishing water in the primary side pipe 23 is measured by the pressure gauge 44 connected to the strainer 41.

The pressure switch 45 for detecting the opening of the NS valve 21 is formed in the valve seat 33 of the NS valve 21 and is a pipe from the running water detection chamber 46 which is closed by the valve body 35 when the valve body 35 is closed. 22c, and a running water signal is supplied to the terminal block 39 by an electric path indicated by a broken line. The pipe 22c is connected to the drain pipe 42 through an orifice 47, and when the NS valve 21 is closed, the fire extinguishing water that operates the pressure switch 45 is gradually discharged. The pressure switch 48 for detecting a large decompression due to damage of the secondary side piping system is the pipe 25a.
And a secondary pressure drop signal is supplied to the terminal block 39 by an electric path indicated by a broken line. Therefore, this pressure switch 4
Numeral 8 detects a pressure drop in the secondary pipe 25 when the NS head 8 is opened for some reason other than a fire, for example, and supplies a secondary pressure drop signal to the terminal block 39. Eight malfunctions can be warned.

Next, the operation of the NS valve unit 20 will be described in detail. As described above, the control signal given from the NS monitoring panel 80 and by extension the NS relay 50 via the terminal block 39 of the corresponding NS valve unit 20 operates the electric part 29a to open the start valve 29 as described above. The standby state of the NS valve 21 can be confirmed by operating a limit switch (not shown) provided in the starting valve 29 and closed at the fully open position, and the primary side 22 from the water supply main pipe 6 through the primary side pipe 23 of the NS valve 21. The fire extinguishing water that had been introduced to the secondary side 24 due to the opening of the NS head 8 (Fig. 2).
After the pressure is adjusted by the pressure adjusting pilot valve 28 according to the pressure reduction of the
8 and therefore the piston 36 moves the valve body 35 into the valve seat 33.
The fire extinguishing water on the primary side 22 is gradually introduced into the secondary side 24, and thus the secondary side pipe 25.
The rise of the water pressure in the pipe 22c causes the pressure switch 45 to operate to notify the terminal block 39 that the NS valve 21 has been opened. After that, the introduction of the fire-extinguishing water into the secondary pipe 25 is controlled by the pressure-regulating action of the pressure-regulating pilot valve 28 described above, and the fire-extinguishing water is decompressed and adjusted to a predetermined pressure.

After that, when the water discharge from the NS head 8 (FIG. 2) continues, this large amount of water discharge is detected by a pressure air tank or the like (not shown), and the pump unit 9 (FIG. 2) is activated to supply water. From the main pipe 6 (Fig. 2) to the NS valve 2
The high-pressure fire extinguishing water is replenished to the primary side piping 23 of 1. As described above, since the secondary side pipe 25 to the NS head 8 and the like is filled with the fire extinguishing water of a predetermined pressure, the fire extinguishing water is released at the same time when the NS head 8 is opened, and there is no delay in the fire extinguishing operation.

FIG. 6 shows N used in an embodiment of the present invention.
It is a wiring diagram which shows a part of S repeater 50 by a block diagram. The NS repeater 50 is a transmission terminal of the NS monitoring board 80, and is electrically connected to the NS valve unit 20 which is an input / output device of the NS system and is also electrically connected to the NS monitoring board 80. . The NS repeater 50 further includes
When the state of the NS valve unit 20 is detected and the detected state is transmitted as a coded information signal to the NS monitoring panel 80 together with its own address, and when a coded control signal is transmitted to and received from the NS monitoring panel 80, the address is detected. After determining whether the command is for itself, the control signal is analyzed and the NS valve unit 20 is controlled (started and returned).

The NS repeater 50 comprises a control circuit 51, which is the control center of the microprocessor M.
PU1, memory ROM1 in which the program is stored,
Memory RAM1 for storing signals and data, interfaces IF11 and IF12 with each unit in the NS repeater 50
And IF13.

The transmission circuit 52 in the NS repeater 50 is I
It is connected to the F13 and transmits / receives to / from the NS monitoring board 80 by serial transmission between signal lines S + and S− which will be described later, and is composed of an A / D converter, a D / A converter and the like not shown. The address setting unit 53 is a unit that individually sets an address for distinguishing each NS relay 50 when transmitting and receiving with the NS monitoring board 80, and the address is set by, for example, a dip switch (not shown). The power supply circuit 54 converts a power supply voltage of, for example, DC 24V from power supply lines PVC and PV described later into a predetermined voltage, for example, 20V, and mainly supplies it to a relay and a response circuit described later. The constant voltage circuit 55 converts the voltage extracted between the signal lines S + and S− into a constant voltage of 3V and supplies it to the control circuit 51 as its power supply voltage. The voltage monitoring circuit 56 monitors the voltage of 20V supplied from the power supply circuit 54, and the power supply lines PVC, P
When a voltage drop due to a poor V connection or the like is detected, the MPU 1 is notified via the IF 12.

The relay O is the NS valve unit 2 of FIG.
The opening valve 29 is controlled to open when the voltage is 0, and the voltage from the power line PVC is switched from contact point o1 to contact point k1 to be described later by switching the contact points o1 and o2 when excited.
-Terminal B and B-Contact 29d described later-Electric part 29a-
Diode 29c-terminal b and low contact k2-contact o2
-Starting valve 29 is opened as it is applied via ground PV. The contact point 29d is a limit switch, which is mechanically switched when the electric part 29a is operated to the full open position to prevent unnecessary voltage application. However, when the relay O is demagnetized, the state shown in FIGS. 6 and 7 is restored, and the power supply voltage is applied in the opposite direction. Therefore, the start valve 29 is closed, and when the relay O is fully opened, as shown in FIG. Then, the reverse voltage is prevented from being applied. These contacts 29d and 29e are switched at the time of fully opening or fully closing, but are switched to the opposite by a little movement. Similarly, the relay T controls the opening of the remote test valve 26 in the NS valve unit 20, and the similar contacts 26d and 26e are switched depending on the state.

The response circuit 57 is a circuit for detecting ON / OFF of contacts by the operation of each part of the NS valve unit 20, such as a fully open / closed start valve 29, a fully open / closed remote test valve 26, etc., by a photocoupler or the like. Is. For example, when the starting valve 29 is fully opened, the PVC-o1-k1-a and the a-contact 29
d (fully open) -terminal C and response circuit 57-ground PV
Accordingly, the response circuit 57 detects the full opening of the starting valve 29. The relay K has a self-holding function, and when it is excited by the voltage of the backup power supply line PKC, which will be described later, when the NS system is in the backup operation mode due to the operation of the secondary pressure lowering pressure switch 48. Contact point k1
And k2 are switched so that the start valve 29 is opened by PKC-k1-a and a-29d-29a-29c-b and ro-k2-ground PK.

FIG. 8 shows N used in an embodiment of the present invention.
6 is a block diagram showing an S monitoring board 80. FIG. This NS monitoring panel 80 controls the startup of the NS valve unit 20 via the NS relay 50 by a fire signal from the fire receiver 4, displays an alarm when the NS head 8 is opened, and sends it to the general monitoring panel CP. Transmission processing relating to the operating status of. For the auxiliary sprinkler (not shown), an alarm is displayed by ANDing the signal of the fire hydrant valve opening and the signal of the main alarm valve (not shown) in the pump unit 9 (FIG. 2). NS monitoring panel 8
0 has a status monitoring function and constantly monitors each part of the system. When the localization is removed by opening and closing the NS valve 21 for maintenance and inspection, the common signal line L to the general monitoring panel CP is used.
Information is transmitted via the AN, and an abnormal state portion is displayed and an alarm is issued on the board. The remote automatic test function of the NS monitoring board 80 sequentially performs a remote operation test for all NS valves 21 based on the programmed sequence, checks the operation function, and displays the cause when there is an abnormality. , Print out and issue a test error alarm. In addition, automatic disconnection monitoring of the NS monitoring circuit can also be performed.
The operation test and the preliminary power supply test can be easily performed. NS
The monitoring panel 80 has an NS independent operation mode in addition to the normal self-fire alarm interlocking mode so that the NS system can function during a failure of the fire / fire receiver 4 and during a test inspection. When operated alone, water discharge can be started by lowering the secondary pressure of the NS valve. In addition, when the NS system has a failure, it has a backup operation mode to prevent the function of the fire extinguishing equipment from being downed, and the backup operation mode can ensure a minimum water discharge function.

The NS monitoring board 80 is provided with a control circuit 81, and the control circuit 81 is a microprocessor M which is a control center.
PU2, memory ROM2 in which the program is stored,
A memory RAM 2 for storing signals and data, an interface IF21, IF22 with each part of the NS monitoring board 80,
It has IF23 and IF24.

The transmission circuit 82 in the NS monitoring board 80 is I
F22 is connected to each of the NS repeaters 50 by serial transmission between the signal lines S + and S-,
It is controlled by a one-chip microcomputer (not shown). The alarm device 83 is, for example, a buzzer connected to the IF 24. The power supply circuit 84 is a circuit that converts a commercial power supply voltage of AC100V into a constant voltage of DC24V, for example, and supplies it to a required location, and supplies power lines PVC to each NS relay 50 and an input IF unit and an output IF unit described later.
Power supply for operation is supplied by PV, and a standby power supply 84a for commercial power supply down is provided. The display control circuit 86 is provided as necessary, and the IF 21
The liquid crystal display LCD, which is similar to the general monitoring panel CP described later, displays various light emitting diodes LED, and monitors the input of the switch SW. This part may be separately configured as a maintenance device, and the IF 21 may be provided with a connection terminal for the device. The backup power supply circuit 87 is
With a backup input from a switch SW on the panel of the general monitoring panel CP, a commercial power supply voltage of AC100V, for example, DC
Converted to a constant voltage of 24V and connected to each NS repeater 50 with power line P
It is a circuit that supplies backup power by KC and PK, and has a backup backup power supply 87a. The transmission circuit 88 is used by the NS monitoring board 80 to send and receive information to and from the general monitoring board CP via the signal line LAN.
It is connected to F23. When the information of each part of the NS monitoring board 80 is sent from the general monitoring board CP with its own address, it is sent, and when the command from the general monitoring board CP is received and its own address is designated. ,Run. Input IF unit 90 and output IF unit 10
Reference numeral 0 is a unit for transmitting and receiving parallel signals (on / off signals) between the NS monitoring panel 80 and the fire receiver 4, as will be described later. Each unit has a microcomputer (not shown) and transmits / receives input / output information to / from the transmission circuit 82 by serial transmission. Therefore, each unit is the NS repeater 5
It has an address equal to 0, and transmits / receives signals in the same manner as the transmission circuit 82 transmits / receives signals to / from each NS repeater 50.

FIG. 9 shows the input IF in the NS monitoring board 80 of FIG.
It is a detailed block diagram of the unit 90. This input IF
The unit 90 is a unit for the NS monitoring board 80 to send and receive signals to and from the fire receiver 4.
Parallel signals are input / output so that the type of is not specified.

The input IF unit 90 is provided with a control circuit 91. The control circuit 91 is a microprocessor MPU3 as a control center and a memory RO in which a program is stored.
M3, memory RAM3 in which signals and data are stored, interface IF3 with each unit in the input IF unit 90
1, IF32 and IF33.

The transmission circuit 92 in the input IF unit 90
Is connected to the IF 32 and transmits / receives to / from the transmission circuit 82 of the NS monitoring board 80 by serial transmission between the signal lines S + and S−, and is configured by an A / D converter, a D / A converter or the like not shown. Has been done. The address setting unit 93 is NS
Each input I when transmitting / receiving with the transmission circuit 82 of the monitoring board 80
This is a part for individually setting an address for distinguishing the F unit 90, and the address is set by, for example, a dip switch (not shown). The power supply circuit 94 converts a power supply voltage of, for example, DC 24V from the power supply lines PVC, PV into a predetermined voltage, for example, 20V, and mainly supplies it to a response circuit described later. The constant voltage circuit 95 converts the voltage extracted between the signal lines S + and S− into a constant voltage of 3V, and the control circuit 9
1 as its power supply voltage. The response circuit 97 is a circuit that detects ON / OFF between each of the signal lines L1 to L16 from the fire receiver 4 and the common line C by a photo coupler or the like (not shown). For example, four response circuits 97 are provided in one input IF unit 90, four signal lines are connected to each response circuit 97, and ON / OFF of each of the four signal lines is detected to detect 1 The unit can input ON / OFF of 16 signal lines.

FIG. 10 shows the output I in the NS monitoring board 80 of FIG.
3 is a detailed block diagram of the F unit 100. FIG. Also in this output IF unit 100, the NS monitoring panel 80 has a fire receiver 4
It is a unit for exchanging signals with and including a control circuit 101. The control circuit 101 includes an MPU4, ROM4, RAM4, IF similar to that shown in FIG.
41, IF 42 and IF 43.

Transmission circuit 1 in the output IF unit 100
Reference numeral 02 is connected to the IF 42, and transmits / receives to / from the transmission circuit 82 of the NS monitoring board 80 by serial transmission between the signal lines S + and S−, and includes an A / D converter and a D / D converter (not shown).
It is composed of an A converter and the like. Address setting unit 103
Is a part for individually setting an address for distinguishing each output IF unit 100 when transmitting / receiving with the transmission circuit 82 of the NS monitoring board 80. For example, the address is set by a dip switch (not shown). Power supply circuit 1
Reference numeral 04 converts a power supply voltage of, for example, DC 24V from the power supply lines PVC, PV into a predetermined voltage, for example, 20V, and supplies it mainly to an output circuit described later. The constant voltage circuit 105 converts the voltage extracted between the signal lines S + and S− into a constant voltage of 3V and supplies it to the control circuit 101 as its power supply voltage. The output circuit 108 uses signal lines M1 to M16 to the fire receiver 4.
Is a circuit for controlling on / off between each of the above and the common line C by a photo coupler, a relay, etc. not shown. One output IF unit 100 is provided with four output circuits 108, four signal lines are connected to each output circuit 108, and four output circuits 108 are provided.
ON / OFF for each signal line of the book is detected and 1 unit
It is possible to control ON / OFF of the six signal lines.

FIG. 11 is a block diagram showing an integrated monitoring board CP used in an embodiment of the present invention. This general monitoring board CP collects information on the NS monitoring boards 80a, 80b, 80c for each building via a common signal line LAN, and sends a control command as necessary. Then, the information of the NS monitoring panel that is monitored and controlled for each building is collectively displayed and alarmed. The general monitoring board CP includes a control circuit 201, and the control circuit 201
Has a microprocessor MPU5 which is a control center, a memory ROM5 in which programs are stored, a memory RAM5 in which signals and data are stored, and interfaces IF51, IF52 and IF53 with respective parts of the general monitoring panel CP.

The transmission circuit 202 in the general monitoring board CP is I
It is connected to the F52 and transmits / receives to / from each NS monitoring board by serial transmission between the signal lines LAN and is controlled by a one-chip microcomputer (not shown). The alarm device 203 is, for example, a buzzer connected to the IF 53.
The power supply circuit 204 is a circuit for converting a commercial power supply voltage of AC100V to a constant voltage and supplying the voltage to necessary parts inside. It also has a standby power supply 204a when the commercial power supply is down. The display control circuit 206 is connected to the IF 51, displays on the liquid crystal display LCD of the board, and various light emitting diodes LE.
Lighting of D and input monitoring of various switches SW such as test input are performed.

Next, the operation of the embodiment of the present invention will be described in detail below. FIG. 12 is a diagram showing a normal monitoring mode and an operation flow at the time of a failure in the normal monitoring mode. (1) Normal monitoring mode When a fire occurs in step S1, the fire detector 1 that detects smoke, heat, etc. of the automatic fire alarm facility operates in step S2, or the person who discovers the fire pushes the transmitter push button. By pressing, the fire receiver 4 receives a fire signal via the fire repeater 2 (not shown in FIG. 12). Then, the fire receiver 4 performs a fire notification operation (fire display) in step S3, determines the fire occurrence position (process by floor), and outputs the notification to the NS monitoring panel 80.

This NS monitoring board 80 sends a fire input display signal to the general monitoring board CP in step S4 and
NS relay 5 that responds to the fire start position with a valve start signal
Send to 0. Upon receiving the start signal, the NS relay unit 50 opens the start valve 29 in the NS valve unit 20 in step S5, and when the start valve 29 is fully opened to enter the standby state, the NS valve unit 20 moves to the NS relay unit 50. The open signal of the starting valve 29 is sent to the NS monitoring board 80 via the.
The NS monitoring board 80 which has received the opening signal of the starting valve 29 sends the fact that the starting valve 29 of the floor concerned is opened to the general monitoring board CP in step S6, and displays it on the general monitoring board CP.

Following the standby state of the NS valve 21 in step S7, when the NS head 8 is opened in step S8 and the secondary pressure in the secondary side pipe 25 decreases,
When the NS valve 21 is opened and the pressure switch 45 detects running water in step S9, the NS relay 50 sends a running water signal to the NS monitoring board 80. N in step S10
Since the S monitoring board 80 sends the water discharge area to the general monitoring board CP to display it and perform an alarm operation and also outputs the notification to the fire receiver 4, the fire receiver 4 in step S11 Display and alarm similar to CP.

Thereafter, in step S12, the NS head 8 is
Discharges pressure-controlled fire extinguishing water, and therefore step S13
When the pressure of the pressure air tank (not shown) is lowered and the pressure switch (not shown) is activated at step S14, the pump unit 9 is automatically started at step S14. This is N
The general monitoring board CP in step S15 by the S relay device 50
And is displayed on the fire receiver 4 in step S16. Then, in step S17, the NS valve 2
1 supplies the regulated fire extinguishing water, and the fire is extinguished in step S18. As a result, the NS monitoring panel 80 sends a stop signal for restoring the NS valve 21 and stopping water discharge to the NS valve unit 20 via the NS relay 50 in step S19 in response to a signal from the general monitoring panel CP. The water discharge is stopped by closing the start valve 29 in S20. In addition, the NS monitoring panel 80 is step S2.
At 1, the display / warning on the fire receiver 4 is restored.

(2) Operation at the time of failure in normal monitoring mode When the NS repeater 50 detects the open / closed state of the valves around the NS valve and the decrease in the secondary pressure in step S31, the NS repeater 50 sends a signal indicating the abnormal state to the NS. It is sent to the monitoring board 80. The NS monitoring board 80 sends a status abnormality to the general monitoring board CP for display / warning according to the content of the signal received in step S32, and also outputs a notification to the fire receiver 4. The fire receiver 4 displays the same display as the NS monitoring panel 80 in step S33.
Give an alarm. Further, in the case of the failure of the NS system itself, it is sent to the general monitoring panel CP in steps S34 and S35 as in steps S32 and S33. If there is a failure in the automatic fire alarm system (self-fire alarm) in step S36, the fire receiver 4 notifies the NS monitor panel 80 of this, and the NS monitor panel 80 automatically switches the operation mode in step S37. Alternatively, the individual operation mode is sent to the general monitoring panel CP and displayed.

(3) Single operation mode FIG. 13 is a diagram showing an operation flow in the single operation mode. This single operation mode is a mode used when the fire receiver 4 is in the transfer stop state for inspection or the like. A fire occurs in step S41, and the heat causes the NS head 8 to open in step S42.
When the pressure switch 48 for lowering the secondary pressure detects that the pressure in the secondary pipe 25 of the NS valve 21 has dropped at 3, the NS relay 50 sends a secondary pressure drop signal to the NS monitoring panel 80.
Send to. The NS monitoring board 80 recognizes the received secondary pressure drop signal as a fire signal, and sends it to the general monitoring board CP to display a fire and sends an NS valve activation signal to the NS repeater 50 in step S44. To do. Upon receiving the start signal, the NS relay unit 50 opens the start valve 29 in the NS valve unit 20 in step S45, and when the start valve 29 is fully opened to enter the standby state, the NS valve unit 20 receives the NS relay unit 50. The open signal of the starting valve 29 is sent to the NS monitoring board 80 via the. The NS monitoring board 80 which has received the opening signal of the starting valve 29 sends the fact that the starting valve 29 of the floor concerned is opened to the general monitoring board CP in step S46.

Since the NS head 8 is opened in step S42, the NS valve 21 is opened in step S47, and when the pressure switch 45 detects running water, the NS relay 50 sends a running water signal to the NS monitoring panel 80. Send to. In step S48, the NS monitoring board 80 sends it to the general monitoring board CP to display the water discharge area and to perform an alarm operation.

Thereafter, in step S49, the NS head 8 is
Discharges pressure-controlled fire extinguishing water, and therefore step S50
When the pressure of the pressure air tank (not shown) is lowered and the pressure switch (not shown) is activated at step S51, the pump unit 9 is automatically started at step S51. This is N
The S monitoring board 80 causes the general monitoring board CP in step S52.
Is displayed in. Then, in step S53, the NS valve 21 discharges the regulated fire extinguishing water, and in step S54, the fire is extinguished.

(4) Backup Operation Mode FIG. 14 is a diagram showing an operation flow in the backup operation mode. Switch SW of the general monitoring board CP (Fig. 1
When 1) is operated to input the backup operation to the backup power supply circuit 87 of the NS monitoring board 80 via the signal line LAN, the backup power supply lines PKC and PK are turned on, and the NS monitoring board 80 is turned on in step S60. Stop the control function of.

A fire occurred in step S61, the heat of the fire opened the NS head 8 in step S62, and the secondary pressure 25 in the secondary valve 25 of the NS valve 21 decreased in step S63. When the pressure reduction pressure switch 48 detects, the relay K (emergency operation circuit) in the NS relay 50 is excited, and the voltage of the backup power supply line PKC opens the start valve 29 in the NS valve unit 20 in step S64. Be operated. Since the NS head 8 is opened in step S62, the NS head 8 discharges the regulated fire extinguishing water in step S65, and the pressure in the pressure air tank (not shown) is reduced in step S66. If a pressure switch (not shown) is activated,
At 67, the pump unit 9 is automatically started. afterwards,
The NS valve 21 supplies the regulated fire extinguishing water in step S68, and the fire is extinguished in step S69.

Next, the system maintenance management of the present invention will be described. (1) Remote test sequence Although static system abnormalities are detected by status monitoring, dynamic reliability can be confirmed by conducting remote tests. In this test, running water equivalent to that during operation of the NS head can be remotely controlled to automatically test the control alarm function of the NS valve and the like to confirm the function. NS
The valve 21 has a built-in remote test function corresponding to the terminal test valve provided in the conventional sprinkler fire extinguishing equipment, and by operating the test start button on the general monitoring panel CP,
A test according to a predetermined programmed sequence is performed on the NS valve unit 20 provided on each floor, and N
The control functions of the S valve unit 20 and the NS monitoring panel 80 are confirmed step by step.

FIG. 15 is a diagram showing an operation flow of the remote test sequence. In step S71, when the switch SW of the general monitoring panel CP is operated to input the remote test to the general monitoring panel CP, the general monitoring panel CP displays the remote test and the remote test address in step S72, and also the corresponding NS.
A test start signal is sent to the monitor board 80, and the NS monitor board 80 sends an open signal of the remote test valve 26 to the remote test valve 26 in the NS valve unit 20 via the NS relay 50 in step S73. In step S74, the remote test valve 26
Is opened, and after checking whether a full open signal is returned within 20 seconds, the NS monitoring board 80 sends the opening of the remote test valve 26 to the general monitoring board CP in step S75, and the general monitoring board CP makes a step. It is displayed in S76. After the remote test valve 26 is fully opened (or before the fully open signal), after checking that the secondary pressure drop signal generated in step S77 is returned within 3 minutes, the NS monitoring panel 80 determines in step S78. The decrease of the next pressure is sent to the general monitoring panel CP and displayed (step S79), and the opening signal of the starting valve 29 is sent via the NS relay unit 50 to the NS valve unit 2.
It is sent to the start valve 29 in 0. In step S80, the start valve 29 is fully opened, and after checking that the full open signal is returned within 20 seconds, the NS monitoring board 80 sets the step S81.
In step S82, the opening of the start valve 29 is sent to the general monitoring panel CP, which is displayed in step S82.

After the start valve 29 is fully opened (or before the full open signal), after checking that the running water signal generated in step S83 is returned within 3 minutes, the NS monitoring panel 8
In step S84, 0 sends the opening of the NS valve 21 to the general monitoring panel CP to display it (step S85) and sends a closing signal of the remote test valve 26 to the remote test valve 26 via the NS relay 50. In step S86, the remote test valve 26 is closed, and after checking that the fully closed signal is returned within 20 seconds, the NS monitoring board 80 sets the step S8.
At 7 the closing of the remote test valve 26 is sent to the general monitoring board CP and displayed at step S88. In step S89 during this period, the NS monitoring board 80 sends a closing signal of the starting valve 29 to the starting valve 29 via the NS relay 50. In step S90, the start valve 29 is closed, and after checking that the fully closed signal is returned within 20 seconds, the NS monitoring panel 8
For 0, the closing of the starting valve 29 is sent to the general monitoring panel CP in step S91 and displayed in step S92.

Then, in step S93, the NS valve 2
The water flow signal is stopped by closing 1 and this is displayed in steps S94 and S95, and the secondary pressure drop signal is restored in step S96, and this is displayed in steps S97 and S98. After confirming that the above response falls within 10 seconds, it is displayed in step S99 that the remote test is completed. In addition, at the time of abnormality,
Abnormal NS valve 21 by restoring NS valve 21
No. and abnormal step are displayed. When the end switch is operated or a fire signal is input during the test, the NS valve 21 is restored to return to normal operation.

(2) Remote automatic test The above remote test is performed sequentially from all NS valves 21 or NS valves 21 with a younger address (in the designated range) for each NS monitoring board 80. After the test, if normal, the normal display is shown and the normal monitoring mode is returned. If there is an abnormality during the test, the abnormal place and the cause of the abnormality are printed by a built-in printer (not shown), and after the end, the normal monitoring mode is returned to. (3) Automatic disconnection monitoring The general monitoring panel CP is always and sequentially cyclically monitoring the NS monitoring panel 80.
To constantly monitor the electric circuit between the NS monitoring boards 80,
Similarly, the NS monitoring board 80 constantly monitors the electric path between the NS repeaters 50 and displays an alarm when the wire is disconnected. (4) Operation test This is a test for confirming whether the signal reception and alarm function of the NS monitoring board 80 operates normally. Start by operating the operation test switch of the general monitoring panel CP. (5) Standby power supply test By inputting the test to the general monitoring board CP, the general monitoring board CP
Abnormality of the standby power source in the inside and the standby power sources 84a and 87a in the NS monitoring board 80 is automatically tested collectively or individually.

In the above-mentioned NS system, the fire receiver 4
Discriminates the floor on which the fire has occurred and transfers it to the NS monitoring panel 80, and according to the information, the NS monitoring panel 80 displays the NS repeater 20 on the relevant floor.
Although the activation command is sent to the NS monitoring panel 80, the fire receiver 4 only transfers the information of the operated fire detector 1
It is also possible to discriminate the floor where the fire has occurred and send a start command to the NS repeater 20 on the relevant floor. Therefore, in the above embodiment, the fire detector 1 of the automatic fire alarm system is used as the fire detecting means. However, the present invention is not limited to this, and the NS monitoring such as disposing a fire detector separately is possible. Board 80
Need only be able to determine the location of the fire.

FIG. 16 is a schematic block diagram showing another main part of another embodiment of the present invention. In FIG. 16, the sprinkler head does not have to be a fast-moving type, but may be a normal wet type, so it will be referred to as an SP head hereinafter, reference numeral 8A.
It is represented by. Similarly, the district valve system is referred to as an automatic alarm valve and is designated by reference numeral 20A, the sprinkler repeater is designated as SP repeater and designated by reference numeral 50A, and the monitoring panel is designated as SP monitoring panel and designated by reference numeral 80A. Other configurations are the same as those of the NS system shown in FIG.

Next, a sprinkler fire extinguishing system (hereinafter referred to as an SP system) according to another embodiment of the present invention will be described. In this SP system, a fire in FIG. It is generated and SP heat 8 by the heat
When A (Fig. 16) is opened, it is installed on the 3rd floor and Fig. 17
The pressure in the secondary side pipe 25 and the secondary side 24 of the automatic alarm valve 20A shown in the schematic configuration diagram in FIG. Then, due to the pressure difference generated between the primary side 22 and the secondary side 24 of the automatic alarm valve 20A, the operating valve 49a rotates in the valve opening direction (the direction of the arrow) about the arm shaft 49b. Actuating valve 49a
The valve element 35 provided on the lower surface of the valve separates from the valve seat 33. As a result, fire extinguishing water flows in from the water supply main 6 (FIG. 16) through the primary side 22, and a part of the fire extinguishing water passing through the opening of the valve seat 33 is pressure-switched through the water flow detection chamber 46 and the pipe 22c. Reaching 45. Therefore, this pressure switch 45 operates to send a running water signal to the SP relay 50A provided on the third floor.
, And to the SP monitoring board 80A via the common signal line 12, and further to the general monitoring board CP via the common signal line LAN, this general monitoring board CP displays a water discharge warning on the board. . When the SP head 8A starts discharging water and the pressure of the pressure air tank (not shown) decreases, the pump unit 9 is automatically activated by the signal. Note that 49
Reference numeral c is a main valve provided near the primary side 22 of the automatic alarm valve 20A, and the state detection limit switch 49d is also connected to the SP relay 50A by an electric path.

Such a series of monitoring and control is performed by the SP monitoring board 80A and the general monitoring board CP installed in the disaster prevention center. SP relay 50 corresponding to each automatic alarm valve 20A
A is arranged, each SP repeater 50A and SP monitor board 80A
An information signal is transmitted and received between and by serial transmission.
The SP monitor panel 80A is the fire receiver 4 of the automatic fire alarm system.
Fire signals and water discharge signals will be transmitted and received between and to construct disaster prevention equipment that is integrated with automatic fire alarm equipment. In addition,
SP repeater 50A and SP monitor panel 8 dedicated to the SP system
0A is installed as a separate signal system independent of the signal system of the automatic fire alarm system. The various information signals are collected from the corresponding automatic alarm valve 20A to the SP repeater 50A arranged on each floor, coded here, and then transmitted to the SP monitor panel 80A by the polling / selecting method. The SP monitor panel 80A has an alarm buzzer, an LCD kanji character display section, an operation section, and has a built-in printer.

FIG. 18 is a wiring diagram showing a partial block diagram of an SP repeater 50A used in another embodiment of the present invention. The SP relay device 50A is a transmission terminal of the SP monitor panel 80A, and is electrically connected to the automatic alarm valve 20A (or an auxiliary sprinkler state monitoring valve (not shown)) which is an input / output device of the SP system. , SP monitoring board 80A is also electrically connected. The SP repeater 50A further detects the state of the automatic alarm valve 20A and transmits the detected state as an encoded information signal to the SP monitor panel 80A together with its own address, and also encodes it with the SP monitor panel 80A. When the control signal is transmitted and received, it is determined whether or not it is an instruction to itself by the address, and then this control signal is analyzed to control (start and return) the automatic alarm valve 20A.

The SP repeater 50A includes a control circuit 51A, which is a control center of the microprocessor MPU6 and a memory R storing a program.
OM6, memory RAM6, S for storing signals and data
Interface IF6 with each unit in the P repeater 50A
1, IF62 and IF63.

Transmission circuit 52A in SP repeater 50A
Are connected to the IF 63 and are connected to signal lines SA + and SA described later.
-The communication between the SP monitoring board 80A and the device is performed by serial transmission, and is configured by an A / D converter, a D / A converter or the like (not shown). The address setting unit 53A displays S
Each SP repeater 50A when transmitting / receiving with the P monitoring board 80A
The address is set individually by a dip switch (not shown). The power supply circuit 54A has a power supply line P described later.
The power supply voltage of, for example, DC 24V from VCA and PVA is converted into a predetermined voltage, for example, 20V, and is mainly supplied to a response circuit described later. The constant voltage circuit 55A includes signal lines SA + and SA
-The voltage extracted from between is converted into a constant voltage of 3 V, for example, and is supplied to the control circuit 51A as its power supply voltage. The voltage monitoring circuit 56A is supplied from the power supply circuit 54A.
When the voltage of 0V is monitored and a voltage drop due to poor connection of the power supply lines PVCA and PVA is detected, MP is transmitted via IF62.
Notify U6.

The relay U controls the opening of the remote test valve 26 in the automatic alarm valve 20A shown in FIG. 19, and when energized, the contacts u1 and u2 are switched over so that the voltage from the power supply line PVCA is a contact. u1-terminal B and A-contact 26d described later-motor unit 26a-diode 2
6c-terminal B-A and B-contact U2-ground PVA, so that the remote test valve 26 is opened. The contact 26d is a limit switch, which is mechanically switched when the electric part 26a is operated to the full open, thereby preventing unnecessary voltage application. However, when the relay U is demagnetized, the state shown in FIGS. 18 and 19 is restored and the power supply voltage is applied in the opposite direction, so the remote test valve 26 is closed,
As in the case of full opening, the state of FIG. 19 is reached when fully closed, preventing the application of reverse voltage. These contacts 26d and 26e are switched when fully opened or fully closed, but to the opposite, they are switched with a little movement.

The response circuit 57A is a circuit for detecting ON / OFF of each contact of each part of the automatic alarm valve 20A, such as the pressure switch 45 and the limit switch 49d, such as the full closing of the remote test valve 26, by a photocoupler or the like. For example, when the remote test valve 26 is fully opened, the response circuit 57A is connected to the remote test valve 26 by the PVCA-u1-aA and the a-contact 26d (fully open) -terminal cA and cA-response circuit 57A-ground PVA. Detects full opening.

FIG. 20 is a block diagram showing an SP monitor board 80A used in another embodiment of the present invention. This SP
The monitoring board 80A displays an alarm by opening the SP head 8A and performs a process of transferring a water discharge signal to the general monitoring board CP. For the auxiliary sprinkler (not shown), an alarm is displayed by a fire hydrant valve open signal. SP monitoring panel 80A
Has a status monitoring function and is constantly monitoring each part of the system. When the automatic alarm valve 20A and the original valve 49c (Fig. 17) are opened / closed during maintenance and inspection, the general monitoring panel CP is opened. Information is transmitted via the signal line LAN, and an abnormal state portion is displayed and an alarm is issued on the board. The remote automatic test function of the SP monitor panel 80A sequentially performs a remote operation test on the fully automatic alarm valve 20A based on the programmed sequence, checks the operation function, and if there is an abnormality, determines the cause. After displaying and printing out, a test abnormality alarm is issued. In addition, automatic disconnection monitoring of the SP monitoring system electric circuit can be performed, and in addition, an operation test and a standby power supply test can be easily performed.

The SP monitor board 80A is provided with a control circuit 81A, and this control circuit 81A is a microprocessor MPU7 as a control center and a memory R in which a program is stored.
OM7, memory RAM7 for storing signals and data, S
Interface IF71 with each part of the P monitoring board 80A,
It has IF72, IF73 and IF74.

Transmission circuit 82A in SP monitor panel 80A
Is connected to the IF 72 and transmits / receives to / from each SP relay 50A by serial transmission between the signal lines SA + and SA−, and is controlled by a one-chip microcomputer (not shown). The alarm device 83A is, for example, a buzzer connected to the IF 74. Power supply circuit 84A is AC100V
Is a circuit for converting the commercial power supply voltage of the above into a constant voltage of, for example, DC 24 V and supplying it to a required location.
In addition, the power supply lines PVCA, P are connected to the input IF unit 90 and the output IF unit 100 described above with reference to FIGS.
The power supply for operation is supplied by VA, and the backup power supply 84Aa is provided when the commercial power supply is down. The display control circuit 86A is provided as necessary.
71 and the general monitoring board C described above with reference to FIG.
Similar to P, display of the liquid crystal display LCD, lighting of various light emitting diodes LED, and input monitoring of the switch SW are performed. Then, this portion may be separately configured as a maintenance device, and the IF 71 may be provided with the connection terminal of the device. The transmission circuit 88A is for the SP monitor board 80A to transmit and receive information to and from the general monitor board CP via the signal line LAN, and is connected to the IF 73.

Next, system maintenance management of another embodiment of the present invention will be described. (1) Remote test sequence Although static system abnormalities are detected by status monitoring, dynamic reliability can be confirmed by conducting remote tests. In this test, running water equivalent to that during operation of the SP head can be remotely controlled to automatically test the alarm function of the automatic alarm valve 20A and confirm the function. The automatic alarm valve 20A has a built-in remote test function corresponding to the terminal test valve provided in the conventional sprinkler fire extinguishing equipment, and is automatically installed on each floor by operating the test start button on the SP monitor panel 80A. A test according to a predetermined programmed sequence is executed on the alarm valve 20A, and the alarm function is confirmed step by step.

FIG. 21 is a diagram showing an operation flow of the remote test sequence. Comprehensive monitoring board CP in step S101
When a remote test input is made to the general monitoring panel CP by operating the switch SW of, the general monitoring panel CP displays the remote test and the remote test address in step S102 and sends a test start signal to the corresponding SP monitoring panel 80A. Then, in step S103, the SP monitor panel 80A sends an open signal of the remote test valve 26 to the remote test valve 26 in the automatic alarm valve 20A via the SP relay 50A. In step S104, the remote test valve 26 is opened, and after checking whether or not the full open signal is returned within 20 seconds, the SP monitor panel 80A opens the remote test valve 26 in step S105.
It is sent to P and displayed in step S106. After full opening of the remote test valve 26 (or before full open signal), step S
After checking that the water flow signal generated in 107 is returned within 3 minutes, the SP monitor panel 80A opens the automatic alarm valve 20A in step S108 to comprehensive monitor panel CP.
And the closing signal of the remote test valve 26 is sent to the remote test valve 26 via the SP relay 50A. In step S110, the remote test valve 26 is closed, and after checking that the fully closed signal is returned within 20 seconds, the SP monitor panel 80A determines in step S11.
At 1, the closing of the remote test valve 26 is sent to the general monitoring panel CP and displayed at step S112.

Thereafter, in step S113, the automatic warning valve 20A is closed to stop the water flow signal, and this is displayed in steps S114 and S115, and it is confirmed that the above response falls within 10 seconds. Then, in step S116, it is displayed that the remote test is completed. When there is an abnormality, the remote test valve 26 is restored and the number of the abnormal automatic alarm valve 20A and the abnormal step are displayed.
If the end switch is operated or a fire signal is input during the test, the remote test valve 26 is restored to return to the normal operation.

(2) Remote automatic test The above remote test is sequentially performed from all the automatic alarm valves 20A or the automatic alarm valves 20A having a younger address (in the designated range) for each SP monitoring board 80A. After the test, if normal, the normal display is shown and the normal monitoring mode is returned. If there is an abnormality during the test, the abnormal place and the cause of the abnormality are printed by a built-in printer (not shown), and after the end, the normal monitoring mode is returned to. (3) Automatic disconnection monitoring The general monitoring panel CP is always and sequentially SP monitoring panel 80
A is called to constantly monitor the electric path between the SP monitoring boards 80A, and the SP monitoring board 80A also constantly monitors the electric path between the SP repeaters 50A and displays an alarm when the wire is disconnected. (4) Operation test This is a test for confirming whether the signal reception and alarm function of the SP monitor panel 80A operate normally. Start by operating the operation test switch of the comprehensive monitoring. (5) Standby power supply test The SP power supply 84Aa in the SP monitor panel 80A is automatically tested for abnormalities.

As described above, in each embodiment of the present invention,
As shown in FIG. 1, the general monitoring board CP of the NS system or the SP system is a monitoring board 80a, 80b, 80c for each building.
The information is collected from the same via the common signal line LAN and the control signal is transmitted. For example, as shown in FIG. 22, the signal line L for collecting the information of the fire receivers 4a, 4b, 4c for each building.
The AN may be used to collect the information of the automatic fire alarm facility and the information of the NS system or the SP system at the same time on the general monitoring panel CP. In this case, the monitoring panels 80a, 80 for each building
The information of b and 80c is transferred to the fire receivers 4a, 4b and 4c of each building via the signal lines 13a, 13b and 13c,
Comprehensive monitoring board CP has fire receivers 4a, 4b, 4c for each building
Information can be aggregated by collecting information from. Also, the control signal can be transmitted by the reverse. In addition, as shown in FIG. 23, monitoring boards 80a, 80b, 80c for each building and a fire receiver 4 for each building are provided on the signal line LAN.
a, 4b, 4c may be connected in an equivalent manner, and the general monitoring panel CP may collect information on the automatic fire alarm system and information on the NS system or SP system. In this case, the fire receivers 4a, 4b for each building Based on the fire information of 4c
Sent a fire signal, the monitoring board 80 for each building
A, 80b, 80c can recognize a fire.

Further, a general monitoring panel CP for collecting information of automatic fire alarm equipment and information of NS system or SP system
24 uses the two signal lines LAN1 and LAN2 as shown in FIG. 24, and the monitoring board 8 for each building is connected to the signal line LAN1 as in FIG.
0a, 80b, 80c may be connected, and the fire receivers 4a, 4b, 4c for each building may be connected to the signal line LAN2 as in FIG. By sending out the monitoring boards 80a, 8 for each building.
0b and 80c can recognize the fire. Furthermore, a total monitoring board CP for NS system or SP system
1 and a general monitoring panel CP2 for automatic fire alarm equipment,
Monitoring boards 80a, 80b, 80 for each building on the signal line LAN1
c, and the signal line LAN2 to the fire receiver 4 for each building
Information may be transferred between the integrated monitoring boards CP1 and CP2 via the signal line 13cp by connecting a, 4b and 4c. In this case, the fire signals of the fire receivers 4a, 4b, 4c in each building are collected in the integrated monitoring board CP2 via the signal line LAN2 and transferred to the integrated monitoring board CP1 via the signal line 13pc. By sending a fire signal from the monitoring board CP1 via the signal line LAN1, the monitoring boards 80a, 80 for each building
b, 80c can recognize the fire.

[0087]

The invention according to claim 1 is a sprinkler fire extinguishing facility used in combination with a fire detecting means, the main water supply pipe extending through a plurality of floors of a plurality of buildings such as a building, and Branch pipes branching and extending from the water supply main for each of the plurality of floors, a number of sprinkler heads provided on the branch pipes of each floor, and provided between the water supply main and each branch pipe, District valve devices for supplying fire extinguishing water to the large number of sprinkler heads, a sprinkler repeater electrically connected to each district valve device, monitoring the state of the sprinkler head, and controlling each district valve device, and all of the above. It is connected to the fire detection means and the sprinkler repeater via a common signal line, and each sprinkler repeater transmits / receives information by coded signals. Line connected via, a display unit that displays the operation portion and various information accepting an operation input to monitor and control the monitoring panel for each building,
The invention according to claim 4 has a monitoring panel for each building and an integrated monitoring panel for transmitting and receiving information by a coded signal. Therefore, the invention according to claim 4 penetrates a plurality of floors of a plurality of buildings such as a building. Of the main water supply mains and branch pipes that branch out from the main water supply mains for each of the plurality of floors, a large number of sprinkler heads provided on the branch pipes of each floor, and the main water supply mains and each branch pipe District valve devices that are respectively provided between the plurality of sprinkler heads to supply fire water to the sprinkler heads, sprinkler repeaters that are electrically connected to the respective district valve devices, and that monitor the condition, and all sprinkler repeaters. A monitoring panel for each building that is connected via a common signal line and sends and receives information in coded signals to and from each sprinkler repeater,
All the monitoring panels are connected through a common signal line, and have an operation unit that receives an operation input for monitoring and controlling the monitoring panels of each building and a display unit that displays various types of information, Since each building has a monitoring panel and a comprehensive monitoring panel that transmits and receives information by coded signals, it is possible to monitor and control the sprinkler fire extinguishing equipment for each building and perform inspection work and test operations. The effect is that only the applicable building can be put into the alarm stop state, and the equipment in the other building can be monitored and controlled as usual.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a main part of an embodiment of a sprinkler fire extinguishing facility according to the present invention.

FIG. 2 is a schematic configuration diagram showing another main part of one embodiment of the present invention.

FIG. 3 is a diagram showing an example in which the NS repeaters in each building are divided into a plurality of groups.

FIG. 4 is a diagram illustrating an operation example of FIG.

FIG. 5 is a schematic configuration diagram showing an NS valve unit used in an embodiment of the present invention.

FIG. 6 is a wiring diagram showing a partial block diagram of an NS repeater used in an embodiment of the present invention.

7 is a wiring diagram showing an electrical-related portion of the NS valve unit of FIG.

FIG. 8 is a block diagram showing an NS monitoring board used in an embodiment of the present invention.

9 is a block diagram showing in detail an input IF unit in the NS monitoring board of FIG. 8. FIG.

10 is a block diagram showing in detail an output IF unit in the NS monitoring board of FIG. 8. FIG.

FIG. 11 is a block diagram showing an integrated monitoring board used in an embodiment of the present invention.

FIG. 12 is a diagram showing an operation flow in a normal monitoring mode.

FIG. 13 is a diagram showing an operation flow in a single operation mode.

FIG. 14 is a diagram showing an operation flow in a backup operation mode.

FIG. 15 is a diagram showing an operation flow of a remote test sequence.

FIG. 16 is a schematic configuration diagram showing another main part of another embodiment of the present invention.

FIG. 17 is a schematic configuration diagram showing an automatic alarm valve used in another embodiment of the present invention.

FIG. 18 is a wiring diagram showing a partial block diagram of an SP repeater used in another embodiment of the present invention.

FIG. 19 is a wiring diagram showing an electrical part of the automatic alarm valve of FIG.

FIG. 20 is a block diagram showing an SP monitor board used in another embodiment of the present invention.

FIG. 21 is a diagram showing an operation flow of a wet type remote test sequence.

FIG. 22 is a block diagram in the case where a fire receiver for each building is connected instead of the monitoring panel for each building in FIG. 1.

FIG. 23 is a block diagram in the case where a fire receiver for each building is connected in addition to the monitoring panel for each building in FIG. 1.

FIG. 24 is a block diagram when two signal lines are used.

FIG. 25 is a block diagram when two signal lines and two integrated monitoring boards are used.

[Explanation of symbols]

1a1 to 1a4, 1b1 to 1b4, 1c1 to 1c4, 1
Fire detectors 4a to 4c Fire receivers 6 Water supply mains 7 Branch pipes 8 NS heads 8A SP heads 5a to 5c, 5, 12a to 12c, 12, LAN, LA
N1, LAN2 common signal lines 20a1 to 20a4, 20b1 to 20b4, 20c1
20c4 District valve device 20 NS valve unit 20A Automatic alarm valve 50a1 to 50a4, 50b1 to 50b4, 50c1
50c4 Sprinkler repeater 50 NS repeater 50A SP repeater 80a-80c Monitoring panel for each building 80 NS monitoring panel 80A SP monitoring panel CP, CP1, CP2 Overall monitoring panel

Claims (4)

[Claims] 1. A sprinkler fire extinguishing facility used in combination with fire detection means, comprising a water supply main extending through a plurality of floors of each of a plurality of buildings such as a building, and the water supply main to the plurality of floors. A branch pipe extending in a branch for each of the plurality of sprinkler heads, a plurality of sprinkler heads provided on the branch pipes of each floor, and a plurality of sprinkler heads provided between the water supply main pipe and the branch pipes, respectively. And a sprinkler repeater that is electrically connected to each district valve device and monitors the state of each district valve device and controls each district valve device, and all the fire detection means and sprinkler repeaters. It is connected via a common signal line and is connected to each sprinkler repeater via a common signal line with the monitoring panel of each building that sends and receives information by coded signals. The monitoring panel of each building has an operation unit that receives an operation input for monitoring and controlling the monitoring panel and a display unit that displays various kinds of information. The monitoring panel of each building and information by a coded signal are displayed. A sprinkler fire extinguishing facility, which is equipped with a comprehensive monitoring panel that transmits and receives. 2. The sprinkler fire extinguishing equipment according to claim 1, wherein the monitoring panel for each building receives a fire signal from the fire detecting means. 3. The integrated monitoring board receives a fire signal from the fire detecting means, and transmits the fire signal as a coded signal to the corresponding monitor board of each building. Sprinkler fire extinguishing equipment. 4. A water supply main extending through a plurality of floors of each of a plurality of buildings such as a building, a branch pipe branching from the water supply main into each of the plurality of floors, and a branch pipe of each floor. A plurality of sprinkler heads provided in the main water supply main pipe and each branch pipe, respectively, and a regional valve device for supplying fire extinguishing water to the plurality of sprinkler heads Connected to the sprinkler repeaters for monitoring the status of the sprinkler repeaters and all sprinkler repeaters connected via a common signal line, and a monitor panel for each building that sends and receives information in coded signals to and from each sprinkler repeater. A monitoring panel connected to all the monitoring panels via a common signal line, and has an operating section for receiving operation inputs for monitoring and controlling the monitoring panels for each building and a display section for displaying various information. , Each building Sprinkler fire extinguishing facility for the the overall monitoring panel for transmitting and receiving information by the monitoring panel and the coded signal, comprising the.