JP7391006B2 - fire extinguishing system - Google Patents

Description

FIELD OF THE INVENTION The present invention relates to fire extinguishing systems.

Conventionally, sprinkler equipment such as a water-discharging head is known as a sprinkler equipment installed in a high ceiling area such as an atrium or an exhibition hall. For example, Patent Document 1 describes a plurality of movable heads installed in a protected area, a central control panel that activates the movable heads in conjunction with a fire signal and instructs fire source search and water spray, and a movable Sprinkler equipment such as a water-discharging head that is equipped with an on-site control panel for manually and remotely controlling the head is described.

Japanese Patent Application Publication No. 2013-230409

Conventionally, there is a limit to the number of movable heads that can be connected to one central operation panel. However, there has long been a need to manage more movable heads with one central control panel.

The present invention has been made in view of the above circumstances, and an object of the present invention is to increase the number of fire extinguishing devices that can be managed by one central operation panel.

In order to solve the above problems, a fire extinguishing system according to the present invention includes a central control panel that is communicatively connected to a first group of fire extinguishing devices and includes a display section, and is communicably connected to the central control panel. and a relay board communicatively connected to a second group of fire extinguishing devices, wherein the central operation panel acquires status information of the first group, and the relay board includes: The status information of the second group is acquired and the acquired status information is transmitted to the central operation panel, and the central operation panel transmits the status information of the first group and the status information of the second group to the Display it on the display.

In a preferred embodiment, the central operation panel has a function of selecting a fire extinguishing device to be sprayed from among the first group and the second group, while the relay panel has a function of selecting a fire extinguishing device to be sprayed from among the first group and the second group. Therefore, there is no function to select the fire extinguishing device to be sprayed with water.

According to the present invention, the number of fire extinguishing devices that can be managed by one central operation panel can be increased.

Block diagram showing the configuration of fire extinguishing system 1 Block diagram showing an example of the internal configuration of the central operation panel 3 Diagram showing an example of an address map screen Diagram showing an example of the first main screen Diagram showing another example of the first main screen Diagram showing an example of the second main screen Diagram showing an example of the third main screen Diagram showing an example of an operation screen Diagram showing another example of the operation screen Diagram showing another example of the operation screen Diagram showing an example of an inspection screen Diagram showing the operation of nozzle unit 4 when a fire occurs Block diagram showing an example of the internal configuration of the local control panel 5 Block diagram showing an example of the internal configuration of the local operation unit 6 Diagram showing an example of a nozzle selection screen A diagram showing an example of a status display screen of the nozzle unit 4 Diagram showing an example of an operation screen Diagram showing another example of the operation screen Diagram showing an example of a recovery screen Diagram showing an example of the test screen A block diagram showing an example of the internal configuration of the relay board 7 Diagram showing the first transmission mode Diagram showing the second transmission mode Sequence diagram showing automatic extinguishing mode Sequence diagram showing manual extinguishing mode Another sequence diagram showing manual extinguishing mode Sequence diagram showing water discharge stop/recovery operations Another sequence diagram showing water discharge stop/recovery operation

1. Embodiment 1-1. Configuration A fire extinguishing system 1 according to an embodiment of the present invention will be described with reference to the drawings.
The fire extinguishing system 1 according to this embodiment is sprinkler equipment such as a water discharge type head. This fire extinguishing system 1 is particularly intended to be installed in a large building having multiple high ceiling sections. FIG. 1 is a block diagram showing the configuration of this fire extinguishing system 1. As shown in FIG. The fire extinguishing system 1 shown in the figure includes an automatic fire alarm facility 2, a central operation panel 3, a nozzle unit 4, a local control panel 5, a local operation unit 6, and a relay panel 7.

In this fire extinguishing system 1, the central operation panel 3 is communicably connected to the automatic fire alarm equipment 2 via a signal line L1. Moreover, this central operation panel 3 is communicably connected to a group of nozzle units 4 via a loop-shaped wiring L2. The nozzle unit 4 connected to the central operation panel 3 is installed in a first high ceiling part of the plurality of high ceiling parts that the building B has. The nozzle unit 4 is also communicably connected to the local control panel 5 via a loop-shaped wiring L3.

The central operation panel 3 is further communicably connected to each relay panel 7 via a communication line L4.
The communication line L4 connecting this central operation panel 3 and each relay panel 7 is an Ethernet (registered trademark) cable. The central operation panel 3 performs TCP/IP communication with each relay panel 7 via this communication line L4.

Each relay board 7 to which this central operation panel 3 is connected is communicably connected to the automatic fire alarm equipment 2 via a signal line L1. Further, each relay board 7 is communicably connected to a group of nozzle units 4 via a loop-shaped wiring L2. The nozzle units 4 connected to each relay board 7 are installed in a second high ceiling part and a third high ceiling part, respectively, among the plurality of high ceiling parts that the building B has. Further, the nozzle units 4 connected to each relay board 7 are also communicably connected to the local control board 5 via loop-shaped wiring L3.

A portable on-site operation unit 6 can be detachably connected to the on-site control panel 5 to which each nozzle unit 4 is connected.
Each component will be explained below.

1-1-1. Automatic fire alarm equipment 2
The automatic fire alarm equipment 2 includes a plurality of detectors installed in the high ceiling of building B and an R-shaped fire receiver installed in the disaster prevention center of building B (both not shown). Among these, the detector is, for example, a smoke detector or a flame detector, and transmits an analog value indicating the measured physical quantity to the fire receiver. The fire receiver transmits a sensor alarm signal to the central operation panel 3 or the relay board 7 when the physical quantity measured by the sensor exceeds a predetermined threshold value and its duration exceeds a predetermined time. This sensor alarm signal includes information indicating the fire section of the sensor that has triggered the alarm.

1-1-2. Central control panel 3
The central operation panel 3 is a device for automatically or manually remotely controlling the nozzle unit 4 installed in the building B. This central operation panel 3 is installed in the disaster prevention center of building B. FIG. 2 is a block diagram showing an example of the internal configuration of the central operation panel 3. As shown in FIG. The central operation panel 3 shown in the figure includes a control section 31, a storage section 32, a touch screen 33, and a communication section 34.

Among these, the control unit 31 is composed of a processor and a memory, and various functions are realized by the processor executing programs stored in the memory. The realized functions include a nozzle control section 311, a nozzle information management section 312, a test section 313, an event information management section 314, a display control section 315, a section information management section 316, and a section information synchronization section 317.

Of these, the nozzle control section 311 controls the nozzle unit 4 in response to a sensor alarm signal transmitted from a fire receiver or in response to an operation by center personnel.

The nozzle information management section 312 acquires and manages nozzle information from each nozzle unit 4 in order to support operations by center personnel. At this time, the nozzle information management section 312 directly acquires nozzle information from the nozzle unit 4 connected to the central operation panel 3 . On the other hand, regarding the nozzle unit 4 connected to the relay board 7, nozzle information is acquired from the relay board 7 to which the nozzle unit 4 is connected. Specifically, the nozzle information acquired in this manner is state information of the nozzle unit 4, operating authority information, and local individual information. Among these, the local-only information is information indicating whether the local control panel 5 is in a state where it does not accept control from the central operation panel 3 (in other words, a local-only state). When the nozzle unit 4 that is alone on site is discharging water, the water discharging of other nozzle units 4 is restricted.

The test section 313 periodically performs an operation test of the local operation unit 6 connected to the central operation panel 3. The operation test referred to here is a test for checking the communication state of the local operation unit 6. The test section 313 transmits a status confirmation command to the local operation unit 6, and if a response can be received, it is determined to be normal, and if a response cannot be received, it is determined to be abnormal. By periodically performing operation tests in this manner, it is possible to prevent a situation where the local operation unit 6 cannot be used when it is actually used.

The event information management unit 314 manages event information related to a fire that occurs in building B. Each event information is composed of the content of the event that occurred and the date and time of the event.

The display control unit 315 generates an operation screen for the central operation panel 3 based on nozzle information managed by the nozzle information management unit 312 and event information managed by the event information management unit 314. Then, the generated operation screen is displayed on the touch screen 33.

The compartment information management unit 316 manages compartment information in order to support operations by center personnel. The section information here refers to the identification information of the protected section, the identification information of the central operation panel 3 or relay panel 7 set in the protected section, and the identification information of the nozzle unit 4 set in the protected section. This is information that is associated with. This partition information is edited on the panel surface of the central operation panel 3 or on a PC connected to the central operation panel 3.

The compartment information synchronization unit 317 synchronizes the compartment information stored in the local operation unit 6 with the compartment information stored in the central operation panel 3. This synchronization process is executed when the central operation panel 3 is activated and when the partition information is updated on the central operation panel 3. This synchronization process makes it possible to maintain the partition information stored in the local operation unit 6 in the latest state.

Next, the operation screen generated by the display control unit 315 will be described.
FIG. 3 is a diagram showing an example of an address map screen. The address map screen shown in the figure shows a list of status information of the nozzle units 4 installed in building B. This screen shows status information of the nozzle unit 4 and local information for each panel. For example, according to the same screen, the nozzle unit 4 with nozzle number "1" is connected to the "central operation panel" and is in the stored state. The nozzle unit 4 with nozzle number "15" is connected to the "first relay board" and is in a state where the fire source has been determined. The nozzle unit 4 with nozzle number "38" is connected to the "second relay board" and is alone on site. Note that the status information may be color-coded depending on the status.

The same screen is also a screen for selecting the board to be operated. When any nozzle unit 4 is selected on this screen, the first main screen of the board corresponding to the selected nozzle unit 4 is displayed.

FIG. 4 is a diagram showing an example of the first main screen. The first main screen shown in the figure shows a list of status information of the nozzle unit 4 corresponding to the selected panel. The same screen is also a screen for selecting the nozzle unit 4 to be controlled. This screen shows the name and installation section of each nozzle unit 4. In addition, status information, local individual information, and operating authority information are shown side by side for each nozzle unit 4. Among these pieces of information, the state information is indicated by highlighting a corresponding state among a plurality of states arranged in the horizontal direction. Note that the status information may be color-coded depending on the status.

According to the screen shown in FIG. 4, for example, "SR-01" is in the stored state, not in the on-site alone state, and has no operating authority on either the central operation panel 3 or the on-site control panel 5. "SR-05" is in a state where the fire source has been determined and water is being sprayed, and it is not in a state where it is alone at the site, and the control authority is vested in the local control panel 5. "SR-10" is in a stored state and is alone on-site, with operation authority vested in the on-site control panel 5.

In addition, the screen includes a power light Lp1, a telephone call light Lp2, a panel failure light Lp3, and a switch caution light Lp4. Among these, the power light Lp1 lights up while the central operation panel 3 is activated, and blinks when a power outage signal is input from a UPS (not shown). The telephone ring light Lp2 lights up when the telephone with the local control panel 5 is connected. The panel failure light Lp3 lights up when an abnormality occurs in the central operation panel 3. The switch caution light Lp4 flashes when a field removal button B4 or a sound stop button B5, which will be described later, is pressed.

In addition, the same screen includes a fire light Lp5 and a fire pump operating light Lp6. Of these, the fire light Lp5 lights up when a sensor alarm signal is input from the fire receiver, and the fire pump operating light Lp6 lights up while a fire pump (not shown) is in operation.

In addition, the same screen includes an event display tab T1, an operation guidance display tab T2, and an event display field S1. Among these, the event display tab T1 is a button for instructing the display of the event display field S1, and the operation guidance display tab T2 is a button for instructing the display of the operation guidance display field S2, which will be described later. The event display column S1 is an area in which a history of events occurring in the fire extinguishing system 1 is shown in chronological order. Since the event display tab T1 is selected on the same screen, this event display field S1 is displayed instead of the operation guidance display field S2. By including this event display column S1 on the first main screen, center personnel can simultaneously check the status of each nozzle unit 4 and the event history.
Note that the size and arrangement of the event display field S1 and the operation guidance display field S2 may be changed depending on the number of nozzle units 4 shown on the same screen.

In addition, the screen includes a menu button B1, an automatic water spray button B2, a manual water spray button B3, an on-site removal button B4, a sound stop button B5, a full recovery button B6, and a display other panel button B31. Among these, the menu button B1 is a button for instructing display of a menu list. In this menu list, the main screen to be displayed on the touch screen 33 can be freely selected from among the first to third main screens. Next, the automatic water spray button B2 is a button for switching the fire extinguishing mode of the fire extinguishing system 1 to automatic fire extinguishing mode, and the manual water spray button B3 is a button for switching the fire extinguishing mode of the fire extinguishing system 1 to manual extinguishing mode. . The on-site removal button B4 is a button for instructing the on-site operation unit 6 to stop abnormality detection. The sound stop button B5 is a button for instructing to stop the failure sound and alarm sound of the central operation panel 3. The all recovery button B6 is a button for instructing recovery of all nozzle units 4 installed in the building B. The other disc display button B31 is a button for instructing display of the other disc list. In this other board list, it is possible to freely select another board on which to display the first main screen.

FIG. 5 is a diagram showing another example of the first main screen. On the first main screen shown in the figure, unlike the first main screen shown in FIG. 4, the operation guidance display tab T2 is selected. Therefore, an operation guidance display field S2 is displayed in place of the event display field S1. This operation guidance display field S2 is an area where an explanation and operation method of the first main screen are shown. By including this operation guidance display field S2 in the first main screen, the center personnel can operate the first screen while referring to the operation guidance.

Next, the second main screen will be explained.
FIG. 6 is a diagram showing an example of the second main screen. The second main screen shown in the figure shows a list of status information of the nozzle units 4 installed in building B. The same screen is also a screen for selecting the nozzle unit 4 to be controlled. On this screen, status information of the nozzle unit 4 is presented in a manner different from that on the first main screen described above. Specifically, among the nozzle units 4 connected to the central operation panel 3 or the relay panel 7, status information is presented only for the nozzle unit 4 in which a predetermined event has occurred. More specifically, the name and installation section of the nozzle unit 4 in which the predetermined event occurred are arranged within the frame of the event in which the predetermined event occurred. The color within the frame of each event may be different for each event.

According to the screen shown in Figure 6, "SR-05" is spraying water, "SR-03" and "SR-05" have confirmed the fire source, and "SR-06" and "SR-07" is abnormal or contaminated. According to this screen, it becomes easy to identify the nozzle unit 4 in which the event has occurred.

In addition, the screen includes the power light Lp1, telephone call light Lp2, panel failure light Lp3, switch caution light Lp4, fire light Lp5, and fire pump operating light Lp6. Also included are the above-mentioned menu button B1, automatic water discharge button B2, manual water discharge button B3, on-site removal button B4, sound stop button B5, and full recovery button B6.

Next, the third main screen will be explained.
FIG. 7 is a diagram showing an example of the third main screen. The third main screen shown in the figure shows a list of status information of the nozzle unit 4 corresponding to the selected board. The same screen is also a screen for selecting the nozzle unit 4 to be controlled. This screen presents the status information of the nozzle unit 4 in a manner different from the first main screen and second main screen described above. Specifically, for each nozzle unit 4, status information, local individual information, and operation authority information are shown in two columns. Among these pieces of information, the state information is indicated by highlighting a corresponding state among a plurality of states arranged in two columns. Note that the status information may be color-coded depending on the status.

According to the screen shown in FIG. 7, for example, "SR-01" is in the stored state, not in the on-site alone state, and the control authority is on the central operation panel 3. "SR-03" is in a state where the fire source has been determined and water is being sprayed, and it is not alone in the field, and neither the central operation panel 3 nor the local control panel 5 has operational authority. "SR-06" is in a stored state and is alone on-site, with operation authority vested in the on-site control panel 5.

In addition, the screen includes the power light Lp1, the telephone call light Lp2, the panel failure light Lp3, the switch caution light Lp4, the fire light Lp5, and the fire pump operating light Lp6. The same screen also includes the above-mentioned event display tab T1, operation guidance display tab T2, and event display field S1. Of these, the size and arrangement of the event display field S1 and the operation guidance display field S2 displayed by selecting the operation guidance display tab T2 are changed depending on the number of nozzle units 4 shown on the same screen. Good too.

In addition, the same screen includes the above-mentioned menu button B1, automatic water spraying button B2, manual water spraying button B3, on-site removal button B4, sound stop button B5, all recovery button B6, and other panel display button B31. .

Next, the operation screen displayed when any nozzle unit 4 is selected on the first to third main screens described above will be explained. The selection operation is performed, for example, by touching each "name of nozzle unit 4 (SR-**)" on the first to third main screens described above.
FIG. 8 is a diagram showing an example of an operation screen. The operation screen shown in the figure is a screen for operating the selected nozzle unit 4. The same screen shows nozzle status information. According to the same screen, "SR-01" is in a stored state.

In addition, the screen includes an operation right indicator light B7 and an operation right button B8. Of these, the operation right indicator light B7 lights up when the local control panel 5 acquires the operation right, and goes out when the central operation panel 3 acquires the operation right or the operation right is released. On the other hand, the operation authority button B8 is a button for causing the central operation panel 3 to acquire operation authority.

In addition, the same screen includes a water discharge preparation button B9. This water spray preparation button B9 is a button for instructing water spray preparation. On the same screen, the water discharge preparation button B9 is grayed out because the operation authority button B8 is not selected and the central operation panel 3 has not acquired the operation authority.

In addition, the same screen includes arrow buttons B10 to B13. These arrow buttons B10 to B13 are buttons for instructing the rotation of the water discharge section 41 of the nozzle unit 4. Among these buttons, the arrow button B10 is a button for instructing a low-speed left turn, the arrow button B11 is a button for instructing a high-speed left turn, and the arrow button B12 is a button for instructing a low-speed right turn. The arrow button B13 is a button for instructing a high-speed right turn. On the same screen, since the water spray preparation button B9 is not selected and the water spray preparation is not completed, these arrow buttons B10 to B13 are grayed out.

In addition, the same screen includes a nozzle image P1. This nozzle image P1 is an external appearance image showing the state of the nozzle unit 4, and in particular is an image showing whether or not the nozzle unit 4 is in the stored state. According to the same screen, "SR-01" is in a stored state. By looking at this nozzle image P1, the center personnel can know whether or not the nozzle unit 4 is in the stored state.

In addition, the same screen includes an indicator image P2. This indicator image P2 is an image illustrating the turning angle of the water discharge part 41 of the nozzle unit 4. On the same screen, since "SR-06" is in the stored state, the bar P21 is not displayed.

In addition, the same screen includes a water spray start button B14 and a water spray stop button B15. The water spray start button B14 is a button for instructing to start water spray, and the water spray stop button B15 is a button for instructing to stop water spray. On the same screen, the water spray start button B14 is grayed out because the water spray preparation button B9 is not selected and the water spray preparation is not completed.

In addition, an operation guidance display field S3 is displayed on the same screen. This operation guidance display field S3 is an area where an explanation of the operation screen and an operation method are shown. By including this operation guidance display field S3 on the operation screen, the center personnel can operate the operation screen while referring to the operation guidance.

In addition, the screen includes a close button B16. This close button B16 is a button for instructing transition to the main screen.

FIG. 9 is a diagram showing another example of the operation screen. In the operation screen shown in the same figure, compared to the operation screen shown in FIG. 8, the operation authority button B8 is selected, and the central operation panel 3 has acquired the operation authority. Therefore, on the same screen, the water discharge preparation button 9 is selectable.

FIG. 10 is a diagram showing yet another example of the operation screen. In the operation screen shown in the figure, compared to the operation screen shown in FIG. 9, the water discharge preparation button 9 is selected, and the water discharge preparation is completed. Therefore, on the same screen, arrow buttons B10 to B13 and water spray start button B14 are selectable. In addition, on the same screen, as shown in the nozzle image P1, "SR-01" is in a non-retracted state. Therefore, the bar P21 is displayed on the indicator image P2. In the same screen, this bar P21 is located at the center, which indicates that the water discharge section 41 of the nozzle unit 4 is facing forward. In addition, this bar P21 moves to the left when the water discharge part 41 turns left, and moves to the right when it turns right.

Next, the inspection screen will be explained. This inspection screen is a screen showing the results of an operation test of the local operation unit 6.
FIG. 11 is a diagram showing an example of this inspection screen. The inspection screen shown in the figure shows that the communication state of the local operation unit 6A is normal and the communication state of the local operation unit 6B is abnormal.

1-1-3. Nozzle unit 4
Next, the nozzle unit 4 will be explained.
The nozzle unit 4 is a fire extinguishing device installed in the high ceiling of the building B, and specifically is a movable head. This nozzle unit 4 includes a water spraying section 41, a sensing section 42, a control section 43, and a signal relay section 44 (see FIG. 12 for the water spraying section 41 and the sensing section 42 among them.The control section 43 and the signal relay section 44 is not shown).

The water spraying section 41 is a combination nozzle that has three types of heads: long throw, medium throw, and short throw in an integrated structure.

The sensing unit 42 includes an infrared linear sensor 421 and a flame detector 422. Among these, the infrared linear sensor 421 searches for a hot spot within the warning area and detects its direction. On the other hand, the flame detector 422 is a three-wavelength infrared flame detector, and detects a fire source in the direction detected by the infrared linear sensor 421.

The control unit 43 receives a signal from the central operation panel 3, the local control panel 5, or the relay board 7, and controls the water discharging unit 41 and the sensing unit 42 according to the received signal. In addition, the status information, operating authority information, and local information of the nozzle unit 4 are managed according to the received signal. Among these pieces of information, the status information is information indicating the operating status of the nozzle unit 4. The states represented by this state information include storage, searching for a fire source, determining the fire source, discharging water, abnormality, and contamination. Among these states, the abnormality is a power supply abnormality, a rotation abnormality, a detection abnormality, or a communication abnormality. The contamination is the contamination of the light receiving window of the sensing section 42.

The signal relay section 44 relays signals between other nozzle units 4 and the central operation panel 3, local control panel 5, or relay panel 7.

FIG. 12 is a diagram showing the operation of this nozzle unit 4 when a fire occurs.
The nozzle unit 4 is normally stored embedded in a wall (FIG. 12(a)). In this state, when an exploration start signal is input from the central operation panel 3, the nozzle unit 4 is activated, and the water discharging section 41 and the sensing section 42 start turning as one (FIG. 12(b)). After the start of the turn, the infrared linear sensor 421 searches for a hot spot within the warning area and detects its direction (FIG. 12(c)). When the direction of the hot spot is detected, the front of the flame detector 422 is directed to the detected direction, and the flame detector 422 detects the fire source F in the detected direction (FIG. 12(d)). When the fire source F is detected, the control unit 43 transmits a fire source position signal indicating the turning angle to the central operation panel 3. After transmitting the fire position signal, the nozzle opening of the water spraying section 41 is directed toward the detected fire source F, and in this state, the nozzle unit 4 enters a standby state (FIG. 12(e)). Thereafter, when a water spray start signal is transmitted from the central operation panel 3 to the nozzle unit 4, water is sprayed from the water spray section 41 to the fire source F.

1-1-4. Local control panel 5
Next, the local control panel 5 will be explained.
The local control panel 5 is a device for manually and remotely controlling the nozzle unit 4 connected to the panel. This local control panel 5 is installed within the protected area where the nozzle unit 4 is installed. A portable on-site operation unit 6 can be detachably connected to this on-site control panel 5. FIG. 13 is a block diagram showing an example of the internal configuration of this local control panel 5. As shown in FIG. The local control panel 5 shown in the figure includes a control section 51, a storage section 52, and a communication section 53. Among these, the control unit 51 is constituted by a processor and a memory, and various functions are realized by the processor executing a program stored in the memory. The functions realized include a nozzle information management section 511, a nozzle information output section 512, and a nozzle control section 513.

The nozzle information management unit 511 acquires and manages nozzle information from the nozzle unit 4 connected to the local control panel 5 in order to support operations by center personnel. As mentioned above, the nozzle information referred to here includes the status information of the nozzle unit 4, the operating authority information, and the individual local information.

The nozzle information output unit 512 outputs nozzle information stored in the on-site control panel 5 to the on-site operation unit 6.

The nozzle control section 513 controls the nozzle unit 4 connected to the on-site control panel 5 according to the operation signal input from the on-site operation unit 6.

1-1-5. Local operation unit 6
Next, the local operation unit 6 will be explained.
The local operation unit 6 is a portable information processing device used to operate the local control panel 5. The local operation unit 6 includes terminals for connecting to the local control panel 5 and the central operation panel 3 via cables. This local operation unit 6 is normally connected to the central operation panel 3, and when used, it is removed from the central operation panel 3, brought to the site, and connected to the local control panel 5.

FIG. 14 is a block diagram showing an example of the internal configuration of the on-site operation unit 6. As shown in FIG. The on-site operation unit 6 shown in the figure includes a control section 61, a storage section 62, a touch screen 63, and a communication section 64. Among these, the control unit 61 is composed of a processor and a memory, and various functions are realized by the processor executing programs stored in the memory. The functions realized include a nozzle information acquisition section 611, a display control section 612, and an operation signal output section 613.

The nozzle information acquisition unit 611 acquires nozzle information from the local control panel 5. This nozzle information is acquired when the on-site operation unit 6 is connected to the on-site control panel 5 and activated, and when the nozzle information is updated on the on-site control panel 5.

The display control unit 612 generates an operation screen for the local control panel 5 based on the nozzle information acquired by the nozzle information acquisition unit 661 and the section information stored in the storage unit 67. Then, the generated operation screen is displayed on the touch screen 63.

When an operation is input to the touch screen 63, the operation signal output unit 613 outputs a signal representing the input operation to the local control panel 5.

Next, the operation screen generated by the display control unit 612 will be explained.
FIG. 15 is a diagram showing an example of a nozzle selection screen. The nozzle selection screen shown in the figure is a screen for selecting a nozzle unit 4 to be controlled. This screen shows the name and installation section of each nozzle unit 4 connected to the local control panel 5. In addition, the status of each nozzle unit 4 is shown in different colors. According to the same screen, "SR-01" and "SR-06" are in a state where the fire source has been determined, "SR-03" is alone on the spot, "SR-10" is in the process of spraying water, and "SR-03" is in a state where the fire source has been determined. -14'' indicates an abnormal or contaminated state, and the others are stored states. The center personnel refers to this screen and selects the nozzle unit 4 to be controlled. The selection operation is performed, for example, by touching each "name of nozzle unit 4 (SR-**)" on the screen.

FIG. 16 is a diagram showing an example of the status display screen of the selected nozzle unit 4. The status display screen shown in the figure includes tabs T3 to T6. Tab T3 is a button for instructing a transition to a status display screen, tab T4 is a button for instructing a transition to an operation screen, and tab T5 is a button for instructing a transition to a recovery screen. The tab T6 is a button for instructing a transition to the test screen.

In addition, the status display screen shown in the figure includes an abnormality light Lp7 and a fire light Lp8. Among these, the abnormality light Lp7 lights up when the nozzle unit 4 is in an abnormal state, and the fire light Lp8 lights up when a sensor alarm signal is input from the fire receiver. According to the same screen, "SR-06" is not in an abnormal state, but a fire is occurring.

In addition, the same screen shows nozzle status information. According to the same screen, "SR-06" is in a state where the fire source has been determined.

In addition, the same screen includes an operation right indicator light B17 and an operation right button B18. Among these, the operation right indicator light B17 lights up when the central operation panel 3 acquires the operation right, and goes out when the local control panel 5 acquires the operation right or the operation right is released. On the other hand, the operation authority button B18 is a button for causing the local control panel 5 to acquire operation authority.

In addition, the same screen includes an operation screen button B19 and a nozzle selection screen button B20. The operation screen button B19 is a button for instructing transition to the operation screen, and the nozzle selection screen button B20 is a button for instructing transition to the nozzle selection screen.

Next, the operation screen will be explained.
FIG. 17 is a diagram showing an example of an operation screen. The operation screen shown in the figure includes the above-mentioned tabs T3 to T6, an abnormality light Lp7, and a fire light Lp8. In addition, the same screen includes a water discharge preparation button B21. This water spray preparation button B21 is a button for instructing water spray preparation. On the same screen, this water discharge preparation button B21 is in an unselected state.

In addition, the same screen includes arrow buttons B22 to B25. These arrow buttons B22 to B25 are buttons for instructing the rotation of the water discharge section 41 of the nozzle unit 4. Among these buttons, arrow button B22 is a button for instructing a low-speed left turn, arrow button B23 is a button for instructing a high-speed left turn, and arrow button B24 is a button for instructing a low-speed right turn. The arrow button B25 is a button for instructing a high-speed right turn. On the same screen, these arrow buttons B22 to B25 are grayed out because the water spray preparation button B21 is not selected and the water spray preparation is not completed.

In addition, the same screen includes a nozzle image P3. This nozzle image P3 is an external appearance image showing the state of the nozzle unit 4, and in particular is an image showing whether the nozzle unit 4 is in the stored state. According to the same screen, "SR-06" is in a stored state. By looking at this nozzle image P3, the center personnel can know whether or not the nozzle unit 4 is in the stored state.

In addition, the same screen includes an indicator image P4. This indicator image P4 is an image illustrating the turning angle of the water discharge part 41 of the nozzle unit 4. On the same screen, since "SR-06" is in the stored state, the bar P41 is not displayed.

In addition, the same screen includes a water spray start button B26 and a water spray stop button B27. The water spray start button B26 is a button for instructing to start water spray, and the water spray stop button B27 is a button for instructing to stop water spray. On the same screen, the water spray start button B26 is grayed out because the water spray preparation button B21 is not selected and the water spray preparation is not completed.

FIG. 18 is a diagram showing another example of the operation screen. In the operation screen shown in the figure, the water spray preparation button B21 is selected, and the water spray preparation is completed. Therefore, on the same screen, arrow buttons B22 to B25 and water spray start button B26 are selectable. In addition, on the same screen, as shown in nozzle image P3, "SR-06" is in a non-retracted state. Therefore, a bar P41 is displayed on the indicator image P4. In the same screen, this bar P41 is located at the center, which indicates that the water discharge section 41 of the nozzle unit 4 is facing forward. In addition, this bar P21 moves to the left when the water discharge part 41 turns left, and moves to the right when it turns right.

Next, the recovery screen will be explained.
FIG. 19 is a diagram showing an example of a recovery screen. The recovery screen shown in the figure includes the above-mentioned tabs T3 to T6, an abnormality light Lp7, a fire light Lp8, and a nozzle selection screen button B20. In addition, the same screen includes a restore button B28 and an execution button B29. The recovery button B28 is a button for instructing to restore the nozzle unit 4, and the execution button B29 is a button for instructing to change the nozzle unit 4 to the on-site independent state.

Next, the test screen will be explained.
FIG. 20 is a diagram showing an example of a test screen. The test screen shown in the figure includes the above-mentioned tabs T3 to T6, an abnormality light Lp7, a fire light Lp8, and a nozzle selection screen button B20. In addition, the same screen includes an execution button B30. This execution button B30 is a button for instructing a self-check test of the nozzle unit 4.

1-1-6. Relay board 7
Next, the relay board 7 will be explained.
The relay board 7 is a device for relaying signals between the central operation panel 3 and the nozzle units 4 connected to the relay board 7. By interposing this relay panel 7 between the central operation panel 3 and the nozzle unit 4, nozzles can be managed from the central operation panel 3 without increasing the number of lines of the nozzle unit 4, which can be directly connected to the central operation panel 3. The number of units 4 can be increased.

FIG. 21 is a block diagram showing an example of the internal configuration of this relay board 7. As shown in FIG. The relay board 7 shown in the figure includes a control section 71, a storage section 72, and a communication section 73. Among these, the control unit 71 is composed of a processor and a memory, and various functions are realized by the processor executing programs stored in the memory. The functions realized include a nozzle information management section 711, a nozzle information transmission section 712, a signal relay section 713, a fire signal transmission section 714, and a communication monitoring section 715.

The nozzle information management section 711 acquires nozzle information from the nozzle unit 4 connected to the relay board 7 and manages the nozzle information. As mentioned above, the nozzle information referred to here includes the status information of the nozzle unit 4, the operating authority information, and the individual local information. Since the nozzle information management unit 711 acquires the nozzle information, the central operation panel 3 does not need to directly acquire the nozzle information for the nozzle units 4 connected to the relay panel 7.

Next, the nozzle information transmitter 712 periodically transmits the nozzle information stored in the relay board 7 to the central operation panel 3.

The signal relay section 713 relays signals between the central operation panel 3 and the nozzle unit 4 connected to the relay panel 7.

When the fire signal transmitter 714 receives a detector alarm signal from the fire receiver connected to the relay panel 7 , the fire signal transmitter 714 transfers the received signal to the central operation panel 3 . When the central operation panel 3 receives this signal, it starts controlling the nozzle unit 4 as described above.

The communication monitoring unit 715 monitors the network connection between the relay panel 7 and the central operation panel 3, and repeatedly attempts reconnection when the network connection is disconnected.

1-2. Operation The operation of the fire extinguishing system 1 will be explained. Specifically, communication operations, fire extinguishing operations, and water discharge stop/recovery operations will be explained.

1-2-1. Communication operation The central operation panel 3, the local control panel 5, and the relay panel 7 communicate with the nozzle unit 4 connected to their own machine using a polling method. The polling method referred to herein is a communication method in which a master device periodically inquires of a plurality of slave devices as to whether or not there is a data transmission request. The central operation panel 3, the local control panel 5, and the relay panel 7 alternately switch between the first transmission mode and the second transmission mode for each polling when performing communication using this polling method. FIG. 22 is a diagram showing the first transmission mode, and FIG. 23 is a diagram showing the second transmission mode. In both figures, the control panel 8 indicates the central operation panel 3, the local control panel 5, and the relay panel 7.

In the first transmission mode shown in FIG. 22, the control panel 8 transmits signals in a clockwise route (see arrow A1). In contrast, each nozzle unit 4 sends back a signal in a counterclockwise direction (see arrow A2). On the other hand, in the second transmission mode shown in FIG. 23, the control panel 8 transmits signals along a counterclockwise route (see arrow A3). In contrast, each nozzle unit 4 sends back signals in a clockwise route (see arrow A4). In this way, by changing the signal transmission route for each polling, communication between the control panel 8 and each nozzle unit 4 is possible even if a communication failure occurs in part of the network. For example, if the wiring between the control panel 8 and the nozzle unit 4a is disconnected, the control panel 8 will not be able to communicate with each nozzle unit 4 in the first transmission mode, but will not be able to communicate with each nozzle unit 4 in the second transmission mode. Can communicate.

When a command such as an exploration start command or a water spray command is generated, the control panel 8 stores the generated command in a command list. If a command exists in the command list, the polling for the command is performed by interrupting the normal polling cycle once every two times. On the other hand, if there is no command in the command list, polling is performed for each nozzle unit 4 to check the status. In this polling, the status of each nozzle unit 4 and the location of the operating authority are confirmed.

1-2-2. Extinguishing operation Next, the extinguishing operation will be explained. Specifically, automatic fire extinguishing mode and manual fire extinguishing mode will be explained. Here, the automatic fire extinguishing mode is a fire extinguishing mode that automatically performs a series of operations from detecting a fire to discharging water. On the other hand, manual fire extinguishing mode automatically performs everything from detecting a fire to selecting the most suitable nozzle unit 4 for water spraying, and for water spraying, fire extinguishing is started according to the operation of the central operation panel 3 or the local operation unit 6. mode. These two fire extinguishing modes can be switched by operating the central operation panel 3.

1-2-2-1. Automatic Extinguishing Mode FIG. 24 is a sequence diagram showing the automatic extinguishing mode. In the sequence diagram shown in the figure, only the processes of the central operation panel 3, nozzle unit 4, and local control panel 5 are shown. However, when the nozzle unit 4 is connected to the central operation panel 3 via the relay board 7, the signals transmitted and received between the nozzle unit 4 and the central operation panel 3 are relayed by the relay panel 7. become. However, in the same sequence diagram and the following related explanation, reference to the relay processing of the relay board 7 will be omitted in order to simplify the explanation. This also applies to FIGS. 25 to 28, which will be described later, and the explanations related to these figures.

In the automatic fire extinguishing mode shown in FIG. 24, when the central control panel 3 receives a detector alarm signal transmitted from the fire receiver (step Sa1), the central control panel 3 sends a nozzle installed in the alert area of the alarm that has triggered the alarm. Unit 4 is identified (step Sa2). Then, a search start signal is transmitted to the identified nozzle unit 4 (step Sa3). At this time, if the central operation panel 3 or the relay panel 7 that relays the search start signal from the central operation panel 3 cannot confirm the ACK from the nozzle unit 4, it retries. If it cannot be confirmed even after retrying, the process continues from the next polling cycle onward.

Upon receiving the search start signal, the nozzle unit 4 starts searching for the fire source (step Sa4). In addition, it updates its own status information from "storage" to "exploration". When a fire source is detected as a result of the fire source search (step Sa5), a fire source position signal indicating the turning angle at the time of detecting the fire source is transmitted to the central operation panel 3 (step Sa6). In addition, the status information of own aircraft is updated from "exploration" to "confirmation".

When the central control panel 3 receives the fire source position signals from all the nozzle units 4 of the fire compartment, or after a predetermined period of time has passed after receiving the first report of the fire source position signal, the central control panel 3 receives the received fire source position signal. The nozzle unit 4 most suitable for water spraying is selected based on the signal (step Sa7). For the method of selecting the nozzle unit 4 at that time, see, for example, Japanese Patent Laid-Open No. 2000-093540.

Only the central operation panel 3 has the function of selecting this nozzle unit 4. The relay board 7 is connected to the nozzle unit 4 like the central operation panel 3, but does not have this function. Therefore, the nozzle unit 4 to be sprayed with water can be centrally determined on the central operation panel 3. In this way, by centrally determining the nozzle units 4 to be sprayed with water, it is possible to prevent water spraying exceeding the water discharge limit set for the building B.

When the central operation panel 3 selects the nozzle unit 4 most suitable for water spraying, it starts the fire pump (step Sa8). In addition, a water discharge start signal is transmitted to the selected nozzle unit 4 (step Sa9). At that time, if the central operation panel 3 or the relay panel 7 that relays the water discharge start signal from the central operation panel 3 cannot confirm the ACK from the nozzle unit 4, it retries. If it cannot be confirmed even after retrying, the process continues from the next polling cycle onward.

When the nozzle unit 4 receives the water spray start signal, it transfers the signal to the local control panel 5 connected to itself (step Sa10). When the local control panel 5 receives this water discharge start signal, it opens the starting valve (not shown) corresponding to the nozzle unit 4 (step Sa11). As a result, water is sprayed from the nozzle unit 4 toward the fire source.

After the starting valve is released, when the local control panel 5 receives an on signal from a pressure switch (not shown) installed on the secondary side of the starting valve (step Sa12), it sends a water discharging signal indicating that water discharging has started. is transmitted to the nozzle unit 4 (step Sa13). When the nozzle unit 4 receives this water spray, it updates its own state information from "confirmed" to "water spray" (step Sa14).
The above is the explanation about the automatic extinguishing mode.

Note that during the operation of the automatic fire extinguishing mode described above, there is a possibility that the network connection between the central operation panel 3 and the relay panel 7 will be disconnected. If the nozzle unit 4 that sprays water is connected to the central operation panel 3 via the relay panel 7, and the network connection between the relay panel 7 and the central operation panel 3 is disconnected, the nozzle Communication between the unit 4 and the central operation panel 3 is interrupted. As a result, the signal transmitted from the central operation panel 3 no longer reaches the nozzle unit 4, and automatic water spraying from the nozzle unit 4 becomes impossible. In that case, the relay board 7 to which the nozzle unit 4 is connected repeatedly tries to reconnect with the central operation panel 3 in order to restore communication between the nozzle unit 4 and the central operation panel 3. On the other hand, the center personnel can manually discharge water from the nozzle unit 4 by operating the local control panel 5 to which the nozzle unit 4 is connected. This manual water spraying method will be described later.

1-2-2-2. Manual Extinguishing Mode FIG. 25 is a sequence diagram showing the manual extinguishing mode. In the manual fire extinguishing mode shown in the figure, it is assumed that water spraying is started in accordance with the operation of the central operation panel 3.

After selecting the nozzle unit 4 most suitable for water discharging as described above (step Sa7), the central operation panel 3 transmits an operation request signal to the nozzle unit 4 when the center personnel performs an operation to obtain operation authority (step Sb1). Step Sb2). At this time, if the central operation panel 3 or the relay panel 7 that relays the operation request signal from the central operation panel 3 cannot confirm the ACK from the nozzle unit 4, it performs a retry. If the confirmation cannot be made even after retrying, the operation is terminated. When the nozzle unit 4 receives the operation request signal, it updates its own operation authority information to "central operation panel" (step Sb3). This update of the operating authority information is also reflected in the operating authority information stored in the central operation panel 3 through status confirmation. Alternatively, this update of the operating authority information is reflected in the operating authority information stored in the relay board 7 through status confirmation. Then, by transmitting the operation authority information of the relay board 7 to the central operation panel 3, the update is also reflected in the operation authority information stored in the central operation panel 3. As a result, the central operation panel 3 enables water discharge preparation operations.

Thereafter, when the center personnel performs a water spray preparation operation (step Sb4), the central operation panel 3 transmits a water spray preparation signal to the nozzle unit 4 (step Sb5). At this time, if the central operation panel 3 or the relay panel 7 that relays the water discharge preparation signal from the central operation panel 3 cannot confirm the ACK from the nozzle unit 4, it retries. If the confirmation cannot be made even after retrying, the operation is terminated. Upon receiving the water discharge preparation signal, the nozzle unit 4 updates its own state information from "confirmed" to "prepared" (step Sb6). This update of the status information is also reflected in the status information stored in the central operation panel 3 through status confirmation. Alternatively, this update of the status information is reflected in the status information stored in the relay board 7 through status confirmation. Then, by transmitting the status information of the relay board 7 to the central operation panel 3, the update is also reflected in the status information stored in the central operation panel 3. As a result, the central operation panel 3 allows turning operations and water spraying operations.

Thereafter, when a turning operation is performed by the center personnel (step Sb7), the central operation panel 3 transmits a turning signal to the nozzle unit 4 (step Sb8). When the nozzle unit 4 receives this turning signal, it turns the water discharge part 41 in the direction indicated by the signal (step Sb9).

Thereafter, when the center personnel performs a water spraying operation (step Sb10), the central operation panel 3 starts the fire pump (step Sb11). In addition, a water spray start signal is transmitted to the nozzle unit 4 (step Sb12). At this time, if the central operation panel 3 or the relay panel 7 that relays the operation request signal from the central operation panel 3 cannot confirm the ACK from the nozzle unit 4, it performs a retry. If the confirmation cannot be made even after retrying, the operation is terminated.

Upon receiving the water spray start signal, the nozzle unit 4 transfers the signal to the local control panel 5 (step Sb13). When the local control panel 5 receives this water discharge start signal, it opens the starting valve corresponding to the nozzle unit 4 (step Sb14). As a result, water is sprayed from the nozzle unit 4 toward the fire source.

After the start valve is released, the local control panel 5 receives an on signal from the pressure switch installed on the secondary side of the start valve (step Sb15), and sends a water discharge signal to the nozzle unit 4 indicating that water discharge has started. (Step Sb16). When the nozzle unit 4 receives this water spray signal, it updates its own state information from "confirmed" to "water spray" (step Sb17).
The above is an explanation of the manual fire extinguishing mode.

Note that during the operation of the manual fire extinguishing mode described above, there is a possibility that the network connection between the central operation panel 3 and the relay panel 7 will be disconnected. If the nozzle unit 4 that sprays water is connected to the central operation panel 3 via the relay panel 7, and the network connection between the relay panel 7 and the central operation panel 3 is disconnected, the nozzle Communication between the unit 4 and the central operation panel 3 is interrupted. As a result, the signal transmitted from the central operation panel 3 no longer reaches the nozzle unit 4, making it impossible to control the nozzle unit 4. In that case, the relay board 7 to which the nozzle unit 4 is connected repeatedly tries to reconnect with the central operation panel 3 in order to restore communication between the nozzle unit 4 and the central operation panel 3. On the other hand, center personnel can control the nozzle unit 4 by operating the local control panel 5 to which the nozzle unit 4 is connected. This manual control method will be described later.

Next, FIG. 26 is another sequence diagram showing the manual extinguishing mode. In the manual fire extinguishing mode shown in the figure, it is assumed that water spraying is started in response to the operation of the local operation unit 6 connected to the local control panel 5.

After the nozzle unit 4 most suitable for water spraying is selected on the central operation panel 3 (step Sa7), when the center personnel performs an operation to obtain operation authority for the local operation unit 6 (step Sc1), the local control panel 5 An operation request signal is transmitted to the nozzle unit 4 (step Sc2). At that time, if the local control panel 5 cannot confirm the ACK from the nozzle unit 4, it performs a retry. If the confirmation cannot be made even after retrying, the operation is terminated. When the nozzle unit 4 receives the operation request signal, it updates its own operation authority information to "local control panel" (step Sc3). This update of the operating authority information is also reflected in the operating authority information stored in the local control panel 5 through status confirmation. As a result, the on-site operation unit 6 can perform water discharge preparation operations.

Thereafter, when the center personnel performs a water spray preparation operation on the local operation unit 6 (step Sc4), the local control panel 5 transmits a water spray preparation signal to the nozzle unit 4 (step Sc5). At that time, if the local control panel 5 cannot confirm the ACK from the nozzle unit 4, it performs a retry. If the confirmation cannot be made even after retrying, the operation is terminated. Upon receiving the water discharge preparation signal, the nozzle unit 4 updates its own state information from "confirmed" to "prepared" (step Sc6). This update of the status information is also reflected in the status information stored in the local control panel 5 through status confirmation. As a result, the on-site operation unit 6 becomes capable of turning operations and water spraying operations.

Thereafter, when the center personnel performs a turning operation on the local operation unit 6 (step Sc7), the local control panel 5 transmits a turning signal to the nozzle unit 4 (step Sc8). When the nozzle unit 4 receives this turning signal, it turns the water discharge part 41 in the direction indicated by the signal (step Sc9).

Thereafter, when the center personnel performs a water spraying operation on the local operation unit 6 (step Sc10), the local control panel 5 transmits a water spraying request signal to the nozzle unit 4 (step Sc11). At that time, if the local control panel 5 cannot confirm the ACK from the nozzle unit 4, it performs a retry. If the confirmation cannot be made even after retrying, the operation is terminated.

When the nozzle unit 4 receives the water spray request signal, it transfers the signal to the central operation panel 3 (step Sc12). When the central operation panel 3 receives this water discharge request signal, it starts the fire pump (step Sc13). In addition, a water spray start signal is transmitted to the nozzle unit 4 (step Sc14). When the nozzle unit 4 receives this water discharge start signal, it transfers the signal to the local control panel 5 (step Sc15). When the local control panel 5 receives this water discharge start signal, it opens the start valve corresponding to the nozzle unit 4 (step Sc16). As a result, water is sprayed from the nozzle unit 4 toward the fire source.

After the start valve is released, the local control panel 5 receives an on signal from the pressure switch installed on the secondary side of the start valve (step Sc17), and sends a water discharge signal to the nozzle unit 4 indicating that water discharge has started. (Step Sc18). When the nozzle unit 4 receives this water spray signal, it updates its own state information from "confirmed" to "water spray" (step Sc19).
The above is an explanation of the manual fire extinguishing mode.

Note that during the operation of the manual fire extinguishing mode described above, there is a possibility that the network connection between the central operation panel 3 and the relay panel 7 will be disconnected. If the nozzle unit 4 that sprays water is connected to the central operation panel 3 via the relay panel 7, and the network connection between the relay panel 7 and the central operation panel 3 is disconnected, the nozzle Communication between the unit 4 and the central operation panel 3 is interrupted. As a result, the water spray request signal transmitted from the nozzle unit 4 no longer reaches the central operation panel 3 (see step Sc12). Alternatively, the water spray start signal transmitted from the central operation panel 3 will not reach the nozzle unit 4 (see step Sc14). Therefore, the relay board 7 that has received the water spray request signal from the nozzle unit 4 returns a water spray start signal on behalf of the central operation panel 3 while the network connection with the central operation panel 3 is disconnected. As a result, the nozzle unit 4 becomes able to transfer the water spray start signal to the local control panel 5 (see step Sc15), and the local control panel 5 that receives the water spray start signal corresponds to the nozzle unit 4. The starting valve can be opened (see step Sc16). However, even in that case, if the fire pump is not activated by the central operation panel 3, the center personnel must manually activate the fire pump.

1-2-3. Water discharge stop/recovery operation Next, water discharge stop/recovery operation will be explained. FIG. 27 is a sequence diagram showing the water discharge stop/recovery operation. In the operation shown in the figure, it is assumed that water discharge is stopped and restored in accordance with the operation of the central operation panel 3.

When the center personnel performs a water spray stop operation (step Sd1), the central operation panel 3 transmits a water spray stop signal to the nozzle unit 4 (step Sd2). At that time, if the central operation panel 3 or the relay panel 7 that relays the water discharge stop signal from the central operation panel 3 cannot confirm the ACK from the nozzle unit 4, it retries. If the confirmation cannot be made even after retrying, the operation is terminated. When the nozzle unit 4 receives the water discharge stop signal, it transfers the signal to the local control panel 5 (step Sd3). When the local control panel 5 receives this water discharge stop signal, it closes the start valve corresponding to the nozzle unit 4 (step Sd4). As a result, water discharge from the nozzle unit 4 is stopped.

After the startup valve is closed, when the local control panel 5 receives an off signal from the pressure switch installed on the secondary side of the startup valve (step Sd5), it sends a stop signal to the nozzle unit 4 indicating that water discharge has stopped. Transmit (step Sd6). Upon receiving this stop signal, the nozzle unit 4 updates its own state information from "water spray" to "determined" (step Sd7).

Thereafter, when the center staff performs a full recovery operation (step Sd8), the central operation panel 3 transmits an operation request signal to the nozzle unit 4 (step Sd9). At this time, if the central operation panel 3 or the relay panel 7 that relays the operation request signal from the central operation panel 3 cannot confirm the ACK from the nozzle unit 4, it performs a retry. If the confirmation cannot be made even after retrying, the operation is terminated. Upon receiving the operation request signal, the nozzle unit 4 updates its own operation authority information to "open" (step Sd10). "Open" here means that the operating authority does not exist on either the central operation panel 3 or the local control panel 5. In addition, the nozzle unit 4 executes a recovery operation (step Sd11), and upon completion of the recovery operation, updates its own state information from "determined" to "stored".

Thereafter, when a pump stop operation is performed on a fire pump panel (not shown), the central operation panel 3 turns off the fire pump operating light Lp6 (step Sd12).
The above is an explanation of water discharge stop/recovery operations.

Next, FIG. 28 is another sequence diagram showing the water discharge stop/recovery operation. In the operation shown in the figure, it is assumed that water discharge is stopped and restored in accordance with the operation of the local operation unit 6 connected to the local control panel 5.

When the center personnel performs a water spray stop operation on the local operation unit 6 (step Se1), the local control panel 5 transmits a water spray stop request signal to the nozzle unit 4 (step Se2). At that time, if the local control panel 5 cannot confirm the ACK from the nozzle unit 4, it performs a retry. If the confirmation cannot be made even after retrying, the operation is terminated. When the nozzle unit 4 receives the water spray stop request signal, it transfers the signal to the central operation panel 3 (step Se3). When the central operation panel 3 receives this water spray stop request signal, it transmits a water spray stop signal to the nozzle unit 4 (step Se4). When the nozzle unit 4 receives this water spray stop signal, it transfers the signal to the local control panel 5 (step Se5). When the local control panel 5 receives this water discharge stop signal, it closes the start valve corresponding to the nozzle unit 4 (step Se6). As a result, water discharge from the nozzle unit 4 is stopped.

After the startup valve is closed, when the local control panel 5 receives an off signal from the pressure switch installed on the secondary side of the startup valve (step Se7), it sends a stop signal to the nozzle unit 4 indicating that the water discharge has stopped. Transmit (step Se8). When the nozzle unit 4 receives this stop signal, it updates its own state information from "water spray" to "determined" (step Se9).

Thereafter, when the center personnel performs a recovery operation on the local operation unit 6 (step Se10), the local control panel 5 transmits an operation request signal to the nozzle unit 4 (step Se11). At this time, if the local control panel 5 cannot confirm the ACK from the nozzle unit 4, it performs a retry. If it cannot be confirmed even after retrying, the operation ends. Upon receiving the operation request signal, the nozzle unit 4 updates its own operation authority information to "open" (step Se12). In addition, a recovery operation is executed (step Se13), and when the recovery operation is completed, the state information of the own machine is updated from "determined" to "stored".

Thereafter, when the center personnel performs a pump stop operation on the fire pump panel, the central operation panel 3 turns off the fire pump operating light Lp6 (step Se14).
The above is an explanation of water discharge stop/recovery operations.

In addition, although the central operation panel 3 outputs the water discharge stop signal in the above-mentioned water discharge stop/recovery operation, the nozzle unit 4 may output the water discharge stop signal instead of the central operation panel 3. In that case, the nozzle unit 4 receives a water spray stop request signal sent from the local control panel 5 and transmits a water spray stop signal to the local control panel 5.

2. Modifications The above embodiment may be modified as follows. Note that the following modifications may be combined with each other.

2-1. Modification example 1
As described above, the sensing section 42 of the nozzle unit 4 includes the infrared linear sensor 421 and the flame detector 422. However, this configuration is just an example. Other sensors may be used as long as the search and detection of the fire source is possible.

2-2. Modification example 2
The fire extinguishing system 1 may also include auxiliary sensors. The auxiliary sensor herein refers to a terminal device that includes the sensing section 42, the control section 43, and the signal relay section 44 included in the nozzle unit 4. In other words, it is a nozzle unit 4 that does not include the water discharge section 41. This auxiliary sensor is installed in the high ceiling part of building B.

Similar to the nozzle unit 4, the auxiliary sensor is communicably connected to the central operation panel 3 via a loop-shaped wiring L2. In addition, it is communicably connected to the local control panel 5 via a loop-shaped wiring L3.

This auxiliary sensor operates as follows in the automatic extinguishing mode described above.
First, when the central operation panel 3 receives a sensor alarm signal from the fire receiver, it specifies the nozzle unit 4 and auxiliary sensor installed within the alert area of the alarm that has issued the alarm. Then, an exploration start signal is transmitted to the identified nozzle unit 4 and auxiliary sensor.

When the auxiliary sensor receives this search start signal, it starts searching for the fire source. When a fire source is detected as a result of the fire source search, a fire source position signal indicating the turning angle at the time of detecting the fire source is transmitted to the central operation panel 3.

The central control panel 3 receives the fire source position signals from all the nozzle units 4 and auxiliary sensors in the fire compartment, or when a predetermined period of time has elapsed since receiving the first report of the fire source position signal. The most suitable nozzle unit 4 for water spraying is selected based on the fire source position signal. In this way, the fire source position signal transmitted from the auxiliary sensor is referenced to select the nozzle unit 4 most suitable for water spraying.

2-3. Modification example 3
The central operation panel 3 includes a touch screen 33 as a display section and an operation section. In other words, the central operation panel 3 includes a display and a touch panel. Instead of this touch panel, another operating section such as hard keys may be provided.

2-4. Modification example 4
The second main screen shown in FIG. 7 shows the nozzle unit 4 that is spraying water, determining the fire source, or experiencing an abnormality. However, the second main screen shown in the figure is just an example, and nozzle units 4 in which other events have occurred may also be shown. For example, the nozzle unit 4 that is searching for a fire source may also be shown.

2-5. Modification example 5
The method for selecting the main screen on the central operation panel 3 is not limited to the method using the menu list described above. For example, each of the first to third main screens may be provided with a display switching button, and each time the display switching button is pressed, the main screens may be switched in order.

2-6. Modification example 6
The number of main screens that can be selected on the central operation panel 3 is not limited to three. Only two of the first to third main screens mentioned above may be selected, or another main screen other than these may be additionally selected.

2-7. Modification example 7
In the operation screens shown in FIGS. 10 and 18, the turning angle of the nozzle unit 4 is shown by an indicator, but this turning angle may be shown by another method. For example, the turning angle may be indicated by changing the direction of the nozzle in the nozzle image P1 or P3. Alternatively, the turning angle may be expressed numerically.

2-8. Modification example 8
The on-site operation unit 6 includes a touch screen 63 as a display section and an operation section. In other words, the local operation unit 6 includes a display and a touch panel. Instead of this touch panel, another operating section such as hard keys may be provided.

2-9. Modification 9
The sensor of the automatic fire alarm equipment 2 is not limited to an analog type, and may be a sensor with a fixed sensitivity. Furthermore, the fire receiver is not limited to the R type, but may be of the P type.

2-10. Modification 10
The local operation unit 6 may be connected to the local control panel 5 wirelessly instead of by wire.

2-11. Modification 11
The central operation panel 3 and the relay panel 7 may be connected by a cable other than the Ethernet cable. For example, they may be connected using an RS-485 cable. Alternatively, the central operation panel 3 and the relay panel 7 may be connected wirelessly instead of by wire.

2-12. Modification example 12
Although the fire extinguishing system 1 shown in FIG. 1 includes two relay boards 7, the number of relay boards 7 may be changed depending on the scale of the fire prevention object.

2-13. Modification example 13
The above-described embodiment embodies the technical idea of making it possible to manage nozzle units, which have conventionally been managed by a plurality of central operation panels, with one central operation panel. This technical idea may be applied to sprinkler installations using fixed heads. For example, to explain the fire extinguishing system described in Japanese Patent Application Laid-open No. 2012-75581, a central control panel connected to a plurality of fire extinguishing system control panels is provided, and this central control panel controls water discharge from each fixed head. It may also be possible to check the status and control water discharge from each fixed head.

1... Fire extinguishing system, 2... Automatic fire alarm equipment, 3... Central operation panel, 4... Nozzle unit, 5... Local control panel, 6... Local operating unit, 7... Relay panel, 8... Control panel, 31... Control section, 32...Storage unit, 33...Touch screen, 34...Communication unit, 41...Water discharge unit, 42...Sensing unit, 43...Control unit, 44...Signal relay unit, 51...Control unit, 52...Storage unit, 53...Communication unit , 61... Control unit, 62... Storage unit, 63... Touch screen, 64... Communication unit, 71... Control unit, 72... Storage unit, 73... Communication unit, 311... Nozzle control unit, 312... Nozzle information management unit, 313 ...Testing section, 314...Event information management section, 315...Display control section, 316...Zone information management section, 317...Zone information synchronization section, 421...Infrared linear sensor, 422...Flame detector, 511...Nozzle information management section, 512... Nozzle information output section, 513... Nozzle control section, 611... Nozzle information acquisition section, 612... Display control section, 613... Operation signal output section, 711... Nozzle information management section, 712... Nozzle information transmission section, 713... Signal Relay section, 714...Fire signal transmission section, 715...Communication monitoring section

Claims (2)

a central control panel communicatively connected to the first group of fire extinguishing devices and having a display;
A fire extinguishing system comprising: a relay panel communicatively connected to the central operation panel and communicatively connected to a second group of fire extinguishing devices;
the central operation panel obtains status information of the first group;
The relay panel acquires status information of the second group and transmits the acquired status information to the central operation panel,
The fire extinguishing system is characterized in that the central operation panel causes the display unit to display status information of the first group and status information of the second group. The central operation panel has a function of selecting a fire extinguishing device to be sprayed from among the first group and the second group, while the relay panel has a function of selecting a fire extinguisher to spray water from among the first group and the second group. The fire extinguishing system according to claim 1, characterized in that it does not have a function to select a fire extinguishing device.

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