On-site operating unit and fire extinguishing system

Abstract

To improve the degree of freedom of installation of a local control panel.SOLUTION: The fire extinguishing system 1 includes a nozzle unit 4, a local control panel 5, and a portable local operation unit 6. The nozzle unit 4 includes a water discharge part and a sensing part. The local control panel 5 acquires state information of the nozzle unit 4 and controls the nozzle unit 4 in accordance with an operation signal output from the local operation unit 6. The on-site operation unit 6 can be connected to the on-site control panel 5 so as to communicate therewith, and includes a display unit and an operation unit. The local operation unit 6 acquires state information from the local control panel 5 and displays the state information on the display part, and when a user operates the operation part, outputs an operation signal indicating the operation to the local control panel 5.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a fire suppression system. [Background technology]

[0002] Conventionally, sprinkler systems such as water-discharge heads have been known as sprinkler systems installed in high-ceiling areas such as atriums, exhibition halls, etc. For example, Patent Document 1 describes a sprinkler system such as water-discharge heads that includes a plurality of movable heads installed in a protected area, a central control panel that activates the movable heads in response to a fire signal and commands fire source detection and water discharge, and an on-site control panel for manually and remotely operating the movable heads. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-230409 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional on-site control panels have had to be installed in a location where the user can see the movable head they are operating. This is because the user of the on-site control panel needs to operate the panel while looking at the movable head. This has resulted in the problem of limiting the installation location of conventional on-site control panels.

[0005] The present invention has been made in view of the above circumstances, and has as its object to improve the degree of freedom in installing on-site control panels. [Means for solving the problem]

[0006] In order to solve the above problems, the fire extinguishing system of the present invention is a fire extinguishing system comprising a fire extinguishing device, a local control panel for instructing the discharge of water from the fire extinguishing device, and a portable local operation unit that can be freely connected to the local control panel so as to be able to communicate with the local control panel and has a display unit and an operation unit, wherein the local control panel acquires status information of the fire extinguishing device, the local operation unit acquires the status information from the local control panel and displays it on the display unit, and when a user operates the operation unit to control the discharge of water from the fire extinguishing device, the local operation unit outputs an operation signal representing the operation to the local control panel, and the local control panel instructs the discharge of water from the fire extinguishing device in accordance with the output operation signal.

[0007] In a preferred embodiment, the fire extinguishing device further includes a central control panel communicatively connected to the fire extinguishing device, the local operation unit is freely connectable to the central control panel so as to be communicatively connected to the central control panel, and the central control panel performs an operation test on the local operation unit while the local operation unit is connected to the central control panel, and displays the results of the operation test on the display unit of the central control panel.

[0008] In a further preferred embodiment, the central control panel stores area information that associates the fire extinguishing device with the area in which the fire extinguishing device is set, and outputs the area information to the local operation unit and stores it while the local operation unit is connected to the central control panel. [Effects of the Invention]

[0009] According to the present invention, the degree of freedom in installing a control panel on site can be improved. [Brief explanation of the drawings]

[0010] [Figure 1] Block diagram showing the configuration of the fire extinguishing system 1 [Figure 2] A block diagram showing an example of the internal configuration of the central operation panel 3. [Figure 3] An example of an inspection screen [Figure 4] A diagram showing the operation of the nozzle unit 4 in the event of a fire [Figure 5] A block diagram showing an example of the internal configuration of the local control panel 5. [Figure 6] FIG. 1 is a diagram showing an example of the appearance of a local operation unit 6. [Figure 7] A block diagram showing an example of the internal configuration of the local operation unit 6. [Figure 8] FIG. 10 is a diagram showing an example of a nozzle selection screen. [Figure 9] FIG. 10 is a diagram showing an example of a status display screen of the nozzle unit 4. [Figure 10] FIG. 10 is a diagram showing an example of an operation screen. [Figure 11] FIG. 10 is a diagram showing another example of an operation screen. [Figure 12] An example of a recovery screen [Figure 13] A diagram showing an example of a test screen [Figure 14] A diagram showing the first transmission mode [Figure 15] A diagram showing the second transmission mode [Figure 16] Sequence diagram showing automatic fire extinguishing mode [Figure 17] Sequence diagram showing manual fire extinguishing mode [Figure 18] Another sequence diagram showing manual fire suppression mode [Figure 19] Sequence diagram showing water discharge stop and recovery operations [Figure 20] Another sequence diagram showing water discharge stop and recovery operations [Figure 21] FIG. 1 shows the configuration of a fire extinguishing system 10. [Figure 22] A block diagram showing an example of the internal configuration of the sprinkler control panel 14. [Figure 23] FIG. 10 is a diagram showing an example of a display operation panel 143. [Figure 24] A block diagram showing an example of the internal configuration of the on-site control panel 15. [Figure 25] A block diagram showing an example of the internal configuration of the local operation unit 16. [Figure 26] FIG. 10 is a diagram showing an example of a display operation panel 163. [Figure 27] Sequence diagram showing automatic water discharge mode [Figure 28] Sequence diagram showing automatic water discharge mode [Figure 29] Sequence diagram showing manual water discharge mode [Figure 30] Sequence diagram showing manual water discharge mode DETAILED DESCRIPTION OF THE INVENTION

[0011] 1. First embodiment 1-1.Configuration A fire extinguishing system 1 according to a first embodiment of the present invention will be described with reference to the drawings. The fire extinguishing system 1 according to this embodiment is a sprinkler system such as a water-discharging head installed in the high ceiling of a building B. FIG. 1 is a block diagram showing the configuration of this fire extinguishing system 1. The fire extinguishing system 1 shown in the figure includes an automatic fire alarm system 2, a central operation panel 3, a plurality of nozzle units 4, a local control panel 5, and a local operation unit 6. Each component will be described below.

[0012] 1-1-1. Automatic fire alarm system 2 The automatic fire alarm system 2 comprises a number of sensors installed in the high ceiling of building B, and an R-type fire receiver installed in the disaster prevention center of building B (both not shown). The sensors are, for example, smoke detectors or flame detectors, and transmit analog values ​​indicating the measured physical quantities to the fire receiver. When the physical quantity measured by the detector exceeds a predetermined threshold and the duration of this detection exceeds a predetermined time, the fire receiver transmits a detector alarm signal to the central operation panel 3. This detector alarm signal contains information indicating the fire compartment of the detector that triggered the alarm.

[0013] 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. This central operation panel 3 is installed in the disaster prevention center of building B and is connected to the fire receiver via signal line L1. FIG. 2 is a block diagram showing an example of the internal configuration of this central operation panel 3. The central operation panel 3 shown in the figure includes a control unit 31, a memory unit 32, a display unit 33, an operation unit 34, and a communication unit 35.

[0014] The control unit 31 is configured with a processor and memory, and various functions are realized by the processor executing programs stored in the memory. The realized functions include a nozzle control unit 311, a nozzle information management unit 312, a test unit 313, a display control unit 314, a partition information management unit 315, and a partition information synchronization unit 316.

[0015] Of these, the nozzle control section 311 controls the nozzle unit 4 in response to a detector alarm signal transmitted from a fire receiver or in response to an operation by a center staff member.

[0016] The nozzle information management unit 312 acquires and manages nozzle information from each nozzle unit 4 to support operations by center personnel. The nozzle information referred to here specifically includes status information, operating authority information, and local independent information of the nozzle unit 4. Of these, the local independent information is information that indicates 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, in a local independent state). When a nozzle unit 4 in a local independent state is spraying water, the spraying of water from other nozzle units 4 is restricted.

[0017] Next, the test unit 313 periodically performs an operation test on the local operation unit 6 connected to the central operation panel 3. The operation test here refers to a test to check the communication status of the local operation unit 6. The test unit 313 sends a status check command to the local operation unit 6, and determines that the local operation unit 6 is normal if a response is received, and determines that an abnormality exists if no response is received. By periodically performing the operation test in this way, it is possible to prevent a situation in which the local operation unit 6 cannot be used when it is actually needed.

[0018] The display control unit 314 generates an operation screen for the central operation panel 3 and displays it on the display unit 33. The displayed screen includes an inspection screen. This inspection screen is a screen that shows the results of an operation test of the local operation unit 6. FIG. 3 is a diagram showing an example of this inspection screen. The inspection screen shown in the same figure shows that the communication status of the local operation unit 6A is normal, and that the communication status of the local operation unit 6B is abnormal.

[0019] The zone information management unit 315 manages zone information to support operations by center personnel. Zone information here refers to information that associates identification information of a protected zone with identification information of the nozzle unit 4 set in that protected zone. This zone information is edited on the surface of the central operation panel 3 or on a PC connected to the central operation panel 3.

[0020] The zone information synchronization unit 316 synchronizes the zone information stored in the local operation unit 6 with the zone information stored in the central operation panel 3. This synchronization process is executed when the central operation panel 3 is started up and when the zone information is updated in the central operation panel 3. This synchronization process makes it possible to keep the zone information stored in the local operation unit 6 up to date.

[0021] 1-1-3.Nozzle unit 4 Next, the nozzle unit 4 will be described. The nozzle unit 4 is a fire extinguishing device installed in the high ceiling of the building B, and specifically, is a movable head. As shown in FIG. 1, the nozzle unit 4 is connected to the central operation panel 3 via a looped wiring L2 so as to be able to communicate with it. The nozzle unit 4 is also connected to the local control panel 5 via a looped wiring L3 so as to be able to communicate with it. The control unit 4 is not individually connected to the central operation panel 3 and the local control panel 5. Therefore, the number of wires connected to the central operation panel 3 and the local control panel 5 is reduced compared to when they are individually connected.

[0022] This nozzle unit 4 comprises a water discharge unit 41, a sensing unit 42, a control unit 43 and a signal relay unit 44 (for the water discharge unit 41 and the sensing unit 42, see Figure 4; for the control unit 43 and the signal relay unit 44, they are not shown).

[0023] The water discharge section 41 is a combined nozzle with three types of heads, namely, long-distance casting, medium-distance casting, and short-distance casting, integrated into one structure.

[0024] The sensing unit 42 comprises an infrared linear sensor 421 and a flame detector 422. Of these, the infrared linear sensor 421 detects hot spots within the alert area and detects their direction. On the other hand, the flame detector 422 is an infrared three-wavelength flame detector, and detects the source of fire in the direction detected by the infrared linear sensor 421.

[0025] The control unit 43 receives signals from the central operation panel 3 and the local control panel 5, and controls the water discharge unit 41 and the sensing unit 42 in accordance with the received signals. In addition, it manages the status information, operating authority information, and local independent information of the nozzle unit 4 in accordance with the received signals. Of this information, the status represented by the status information includes storage, fire source search in progress, fire source confirmed, water discharge, abnormality, and contamination. Of these states, abnormality refers to a power supply abnormality, rotation abnormality, detection abnormality, or communication abnormality. Contamination refers to contamination of the light receiving window of the sensing unit 42.

[0026] The signal relay unit 44 relays signals exchanged between other nozzle units 4 and the central operation panel 3 or the local control panel 5 .

[0027] FIG. 4 is a diagram showing the operation of this nozzle unit 4 in the event of a fire. The nozzle unit 4 is normally stored in a recessed state in the wall (Fig. 4(a)). When an investigation start signal is input from the central operation panel 3 in this state, the nozzle unit 4 is activated, and the water discharge unit 41 and the detection unit 42 start rotating together (Fig. 4(b)). After starting to rotate, the infrared linear sensor 421 searches for hot spots within the alert area and detects their direction (Fig. 4(c)). When the direction of the hot spot is detected, the front of the flame detector 422 is turned toward the detected direction, and the flame detector 422 detects a fire source F in that direction (Fig. 4(d)). When the fire source F is detected, the control unit 43 sends a fire source position signal indicating the rotation angle to the central operation panel 3. After the fire position signal is sent, the nozzle outlet of the water discharge unit 41 is turned toward the detected fire source F, and the nozzle unit 4 enters a standby state in this state (Fig. 4(e)). Thereafter, when a water discharge start signal is sent from the central control panel 3 to the nozzle unit 4, water is discharged from the water discharge unit 41 to the fire source F.

[0028] 1-1-4. Local control panel 5 Next, the on-site control panel 5 will be described. The local control panel 5 is a device for manually and remotely controlling the nozzle unit 4. This local control panel 5 is installed in the protected area where the nozzle unit 4 is installed. A portable local operation unit 6 is detachably connected to this local control panel 5. As will be described later, this local operation unit 6 is equipped with a touch screen 62, and the local control panel 5 is operated using this local operation unit 6. Therefore, the local control panel 5 does not need to be equipped with a display unit and an operation unit. Therefore, the local control panel 5 can be made smaller than conventional local operation panels.

[0029] In addition, the local operation unit 6 is portable and connected to the local control panel 5 via a cable. Therefore, the user of the local operation unit 6 can operate the unit at a location away from the local control panel 5. The control panel can be operated from anywhere on the site. For example, a user can move to a position where the nozzle unit 4 is visible and operate the local control panel 5. Therefore, unlike conventional local operation panels, the local control panel 5 does not need to be installed in a position where the nozzle unit 4 is visible. In other words, the local control panel 5 has a high degree of freedom in installation. Furthermore, since the local control panel 5 can be installed in an inconspicuous position, for example, there is no need to consider manufacturing it to match the color of the wall where it is installed.

[0030] Next, the internal configuration of the on-site control panel 5 will be described. Figure 5 is a block diagram showing an example of the internal configuration of this on-site control panel 5. The on-site control panel 5 shown in the figure includes a control unit 51, a storage unit 52, and a communication unit 53. Of these, the control unit 51 is composed of a processor and memory, and various functions are realized by the processor executing programs stored in the memory. The realized functions include a nozzle information management unit 511, a nozzle information output unit 512, and a nozzle control unit 513.

[0031] To support operations by center personnel, the nozzle information management unit 511 acquires and manages nozzle information from each nozzle unit 4. As described above, the nozzle information here refers to the status information, operation authority information, and local independent information of the nozzle unit 4.

[0032] The nozzle information output unit 512 outputs the nozzle information stored in the local control panel 5 to the local operation unit 6.

[0033] The nozzle control unit 513 controls the nozzle unit 4 in response to an operation signal input from the local operation unit 6 .

[0034] 1-1-5. Local Operation Unit 6 Next, the local operation unit 6 will be described. The local operation unit 6 is a portable information processing device used to operate the local control panel 5. FIG. 6 is a diagram showing an example of the appearance of this local operation unit 6. The local operation unit 6 shown in the figure includes a substantially rectangular parallelepiped housing 61, a touch screen 62 and a call switch 63 arranged on the front of the housing 61, and a jack 64 and a terminal 65 arranged on the bottom of the housing 61. Of these, the call switch 63 is a switch for starting a call with the central operation panel 3. A call with the central operation panel 3 is made via a communication line (not shown) connecting the central operation panel 3 and the local control panel 5. The jack 64 is a socket into which a headset terminal for calls is inserted. The terminal 65 is a device for connecting the local control panel 5 and the central operation panel 3 via a cable (or via a cable and a connector box). The local operation unit 6 is detachably connected to the local control panel 5 and the central operation panel 3 via this terminal 65. The local operation unit 6 is normally connected to the central operation panel 3, and when in use, it is detached from the central operation panel 3, brought to the site, and connected to the local control panel 5.

[0035] 7 is a block diagram showing an example of the internal configuration of the local operation unit 6. The local operation unit 6 shown in the figure includes a touch screen 62, a control unit 66, a storage unit 67, and a communication unit 68. The control unit 66 is composed of a processor and memory, and various functions are realized by the processor executing programs stored in the memory. The realized functions include a nozzle information acquisition unit 661, a display control unit 662, and an operation signal output unit 663.

[0036] The nozzle information acquisition unit 661 acquires nozzle information from the local control panel 5. This nozzle information acquisition is performed when the local operation unit 6 is connected to the local control panel 5 and started up, and when the nozzle information is updated in the local control panel 5.

[0037] The display control unit 662 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 62.

[0038] When an operation is input to the touch screen 62, the operation signal output unit 663 outputs a signal representing the input operation to the local control panel 5.

[0039] Next, an operation screen generated by the display control unit 662 will be described. FIG. 8 is a diagram showing an example of a nozzle selection screen. The nozzle selection screen shown in the figure is a screen for selecting the 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 color-coded. According to this screen, "SR-01" and "SR-06" are in a confirmed fire source state, "SR-03" is in a local isolated state, "SR-10" is spraying water, "SR-14" is in an abnormal or soiled state, and the others are in a stored state. Center personnel refer to this screen to select the nozzle unit 4 to be controlled. This selection operation is performed, for example, by touching the area on the screen where each "nozzle unit 4 name (SR-**)" is displayed.

[0040] 9 is a diagram showing an example of a status display screen for a selected nozzle unit 4. The status display screen shown in the figure includes tabs T1 to T4. Tab T1 is a button for instructing transition to the status display screen, tab T2 is a button for instructing transition to the operation screen, tab T3 is a button for instructing transition to the recovery screen, and tab T4 is a button for instructing transition to the test screen.

[0041] In addition, the status display screen shown in the figure includes an abnormality light Lp1 and a fire light Lp2. Of these, the abnormality light Lp1 lights up when the nozzle unit 4 is in an abnormal state, and the fire light Lp2 lights up when a detector alarm signal is input from the fire receiver. According to the screen, the "SR-06" is not in an abnormal state, and a fire is occurring.

[0042] Additionally, the screen also displays the status of the nozzle, which indicates that the SR-06 is a confirmed source of fire.

[0043] In addition, the screen includes an operation authority indicator light B1 and an operation authority button B2. Of these, the operation authority indicator light B1 lights up when the central operation panel 3 acquires the operation authority, and goes out when the local control panel 5 acquires the operation authority or when the operation authority is released. On the other hand, the operation authority button B2 is a button for causing the local control panel 5 to acquire the operation authority.

[0044] In addition, this screen includes an operation screen button B3 and a nozzle selection screen button B4. The operation screen button B3 is a button for instructing transition to the operation screen, and the nozzle selection screen button B4 is a button for instructing transition to the nozzle selection screen.

[0045] Next, the operation screen will be described. Fig. 10 is a diagram showing an example of an operation screen. The operation screen shown in the figure includes the above-mentioned tabs T1 to T4, the abnormality light Lp1, and the fire light Lp2. In addition, the screen includes a water discharge preparation button B5. This water discharge preparation button B5 is a button for instructing water discharge preparation. On the screen, the water discharge preparation button B5 is in an unselected state.

[0046] Additionally, the screen includes arrow buttons B6 to B9. These arrow buttons B6 to B9 are buttons for instructing the rotation of the water discharge part 41 of the nozzle unit 4. Of these buttons, the arrow button B6 is a button for instructing a low-speed left turn, and the arrow button B9 is a button for instructing a low-speed left turn. The arrow button B7 is a button for instructing a high-speed left turn, the arrow button B8 is a button for instructing a low-speed right turn, and the arrow button B9 is a button for instructing a high-speed right turn. On this screen, the water discharge preparation button B5 has not been selected, and water discharge preparation has not been completed, so these arrow buttons B6 to B9 are grayed out.

[0047] In addition, the screen includes a nozzle image P1. This nozzle image P1 is an image that indicates whether or not the nozzle unit 4 is in the stored state. According to the screen, "SR-06" is in the stored state. By looking at this nozzle image P1, the center staff can know whether or not the nozzle unit 4 is in the stored state.

[0048] In addition, the screen includes an indicator image P2. This indicator image P2 is an image that indicates the rotation angle of the water-discharging section 41 of the nozzle unit 4. On the screen, since "SR-06" is in the stored state, the bar P21 is not displayed.

[0049] In addition, the screen includes a water discharge start button B10 and a water discharge stop button B11. The water discharge start button B10 is a button for instructing the start of water discharge, and the water discharge stop button B11 is a button for instructing the stop of water discharge. On the screen, the water discharge preparation button B5 has not been selected, and water discharge preparation has not been completed, so the water discharge start button B10 is grayed out.

[0050] FIG. 11 is a diagram showing another example of the operation screen. In the operation screen shown in FIG. 11, the water discharge preparation button B5 has been selected, and preparation for water discharge has been completed. Therefore, the arrow buttons B6 to B9 and the water discharge start button B10 are selectable on the screen. In addition, as shown in the nozzle image P1 on the screen, the "SR-06" is in the unretracted state. Therefore, a bar P21 is displayed on the indicator image P2. On the screen, this bar P21 is located in the center, which indicates that the water discharge portion 41 of the nozzle unit 4 is facing forward. Note that this bar P21 moves left when the water discharge portion 41 turns left, and moves right when the water discharge portion 41 turns right.

[0051] Next, the recovery screen will be described. 12 is a diagram showing an example of a recovery screen. The recovery screen shown in the figure includes the above-mentioned tabs T1 to T4, the abnormality light Lp1, the fire light Lp2, and the nozzle selection screen button B4. In addition, the screen includes a recovery button B12 and an execute button B13. The recovery button B12 is a button for instructing the recovery of the nozzle unit 4, and the execute button B13 is a button for instructing the nozzle unit 4 to change to a local standalone state.

[0052] Next, the test screen will be described. 13 is a diagram showing an example of a test screen. The test screen shown in the figure includes the above-mentioned tabs T1 to T4, the abnormality light Lp1, the fire light Lp2, and a nozzle selection screen button B4. In addition, the screen includes an execute button B14. This execute button B14 is a button for instructing a self-check test of the nozzle unit 4.

[0053] 1-2.Operation The following describes the operation of the fire extinguishing system 1. Specifically, the following describes the communication operation, the fire extinguishing operation, and the water discharge stop / recovery operation.

[0054] 1-2-1.Communication operation The central operation panel 3 and the local control panel 5 communicate with each nozzle unit 4 using a polling method. The polling method here refers to a communication method in which a master device periodically inquires of multiple slave devices about whether or not there is a data transmission request. When communicating using this polling method, the first transmission mode and the second transmission mode are alternately switched for each poll. Figure 14 shows the first transmission mode, and Figure 15 shows the second transmission mode. In both figures, the control panel 7 represents the central operation panel 3 and the local control panel 5.

[0055] In the first transmission mode shown in FIG. 14, the control panel 7 transmits a signal along a clockwise route (see arrow A1). In response, each nozzle unit 4 returns a signal along a counterclockwise route (see arrow A2). On the other hand, in the second transmission mode shown in FIG. 15, the control panel 7 transmits a signal along a counterclockwise route (see arrow A3). In response, each nozzle unit 4 returns a signal along a clockwise route (see arrow A4). In this way, by changing the signal transmission route for each polling, communication between the control panel 7 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 7 and nozzle unit 4a is broken, the control panel 7 will not be able to communicate with each nozzle unit 4 in the first transmission mode, but will be able to communicate with each nozzle unit 4 in the second transmission mode.

[0056] When an event such as a search start command or a water discharge command occurs, the control panel 7 stores the event in an event list. If an event exists in the event list, the control panel 7 interrupts the normal polling cycle once every two cycles to poll for the event. On the other hand, if no event exists in the event list, the control panel 7 polls each nozzle unit 4 to check its status. This polling checks the status of each nozzle unit 4 and the location of its operating authority.

[0057] 1-2-2. Fire extinguishing operation Next, the fire extinguishing operation will be explained. Specifically, the automatic fire extinguishing mode and the manual fire extinguishing mode will be explained. Here, the automatic fire extinguishing mode is a fire extinguishing mode in which a series of operations from fire detection to water discharge is carried out automatically. In contrast, the manual fire extinguishing mode is a fire extinguishing mode in which operations from fire detection to selection of the nozzle unit 4 optimal for water discharge are carried out automatically, and water discharge is initiated in response to operation of the central operation panel 3 or the local operation unit 6. These two fire extinguishing modes can be switched by operating the central operation panel 3 on its panel.

[0058] 1-2-2-1. Automatic extinguishing mode FIG. 16 is a sequence diagram showing the automatic fire extinguishing mode. When the central operation panel 3 receives a detector alarm signal from the fire receiver (step Sa1), it identifies the nozzle unit 4 installed within the alert zone of the detector that has activated the alarm (step Sa2). Then, it sends a search start signal to the identified nozzle unit 4 (step Sa3). At this time, if the central operation panel 3 cannot confirm an ACK from the nozzle unit 4, it performs a retry. If confirmation is still not possible after the retry, it continues from the next polling cycle onwards.

[0059] When the nozzle unit 4 receives the search start signal, it starts searching for a fire source (step Sa4). In addition, it updates its own status information from "storage" to "search." Then, when a fire source is detected as a result of the fire source search (step Sa5), it sends a fire source position signal indicating the rotation angle at the time of fire source detection to the central operation panel 3 (step Sa6). In addition, it updates its own status information from "search" to "determined."

[0060] When the central control panel 3 receives fire source position signals from all nozzle units 4 in the fire compartment, or when a predetermined time has elapsed since receiving the first fire source position signal, it selects the nozzle unit 4 that is best suited to spraying water based on the received fire source position signal (step Sa7). The method for selecting the nozzle unit 4 at this time is described, for example, in Japanese Patent Laid-Open No. 2000-093540. . After selecting the nozzle unit 4 that is best suited for water discharge, the central control panel 3 starts the fire pump (not shown) (step Sa8). In addition, it sends a water discharge start signal to the selected nozzle unit 4 (step Sa9). At this time, if the central control panel 3 cannot confirm an ACK from the nozzle unit 4, it will perform a retry. If confirmation is still not possible after the retry, it will continue from the next polling cycle onwards.

[0061] When the nozzle unit 4 receives the water discharge start signal, it transfers the signal to the local control panel 5 (step Sa10). When the local control panel 5 receives this water discharge start signal, it opens the start valve (not shown) corresponding to the nozzle unit 4 (step Sa11). As a result, water is discharged from the nozzle unit 4 toward the fire source.

[0062] After the start valve is opened, when the local control panel 5 receives an ON signal from a pressure switch (not shown) installed on the secondary side of the start valve (step Sa12), it sends a water discharge signal indicating that water discharge has started to the nozzle unit 4 (step Sa13). Upon receiving this water discharge, the nozzle unit 4 updates its own status information from "confirmed" to "water discharge" (step Sa14). This concludes the description of the automatic fire extinguishing mode.

[0063] 1-2-2-2. Manual extinguishing mode 17 is a sequence diagram showing the manual fire extinguishing mode, which is assumed to start water discharge in response to operation of the central operation panel 3.

[0064] After the central control panel 3 selects the nozzle unit 4 best suited for water discharge (step Sa7) as described above, and the center personnel performs an operation to obtain the operation authority (step Sb1), the central control panel 3 sends an operation request signal to the nozzle unit 4 (step Sb2). At that time, if the central control panel 3 cannot confirm an ACK from the nozzle unit 4, it performs a retry. If confirmation is still not possible after the retry, it terminates operation. When the nozzle unit 4 receives the operation request signal, it updates its own operation authority information to the "central control panel" (step Sb3). This update of the operation authority information is also reflected in the operation authority information stored in the central control panel 3 through status confirmation. As a result, the central control panel 3 becomes able to perform the water discharge preparation operation.

[0065] Thereafter, when the central operator performs a water discharge preparation operation (step Sb4), the central operation panel 3 sends a water discharge preparation signal to the nozzle unit 4 (step Sb5). At that time, if the central operation panel 3 cannot confirm an ACK from the nozzle unit 4, it performs a retry. If confirmation is still not possible after the retry, it terminates operation. When the nozzle unit 4 receives the water discharge preparation signal, it updates its own status 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 the status confirmation. As a result, it becomes possible to perform rotation operations and water discharge operations on the central operation panel 3.

[0066] Thereafter, when a rotation operation is performed by the center staff (step Sb7), the central operation panel 3 transmits a rotation signal to the nozzle unit 4 (step Sb8). Upon receiving this rotation signal, the nozzle unit 4 rotates the water-discharging part 41 in the direction indicated by the signal (step Sb9).

[0067] Thereafter, when the central operator performs the water discharge operation (step Sb10), the central operation panel 3 starts the fire pump (step Sb11). In addition, it sends a water discharge start signal to the nozzle unit 4 (step Sb12). At this time, if the central operation panel 3 cannot confirm an ACK from the nozzle unit 4, it performs a retry. If confirmation is still not possible after the retry, the operation is terminated.

[0068] When the nozzle unit 4 receives the water discharge start signal, it 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 start valve corresponding to the nozzle unit 4 (step Sb14). As a result, water is discharged from the nozzle unit 4 toward the fire source.

[0069] After the start valve is opened, when the local control panel 5 receives an ON signal from a pressure switch installed on the secondary side of the start valve (step Sb15), it sends a water discharge signal indicating that water discharge has started to the nozzle unit 4 (step Sb16). When the nozzle unit 4 receives this water discharge signal, it updates its own status information from "confirmed" to "water discharge" (step Sb17). This concludes the description of the manual fire extinguishing mode.

[0070] 18 is another sequence diagram showing the manual fire extinguishing mode. In the manual fire extinguishing mode shown in the figure, it is assumed that water discharge is started in response to the operation of the local operation unit 6 connected to the local control panel 5.

[0071] After the nozzle unit 4 optimal for water spraying is selected on the central operation panel 3 (step Sa7), the center personnel performs an operation to obtain operation authority on the local operation unit 6 (step Sc1), and the local control panel 5 sends an operation request signal to the nozzle unit 4 (step Sc2). At that time, if the local control panel 5 cannot confirm an ACK from the nozzle unit 4, it performs a retry. If confirmation is still not possible after the retry, it terminates operation. When the nozzle unit 4 receives the operation request signal, it updates its own operation authority information to the "local control panel" (step Sc3). This update of the operation authority information is also reflected in the operation authority information stored in the local control panel 5 through status confirmation. As a result, the local operation unit 6 becomes able to perform water spray preparation operations.

[0072] Thereafter, when the center personnel performs a water discharge preparation operation on the local operation unit 6 (step Sc4), the local control panel 5 sends a water discharge preparation signal to the nozzle unit 4 (step Sc5). At that time, if the local control panel 5 cannot confirm an ACK from the nozzle unit 4, it performs a retry. If confirmation is still not possible after the retry, it terminates operation. When the nozzle unit 4 receives the water discharge preparation signal, it updates its own status 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 the status confirmation. As a result, the local operation unit 6 becomes able to perform rotation operations and water discharge operations.

[0073] Thereafter, when the center personnel performs a rotation operation on the local operation unit 6 (step Sc7), the local control panel 5 transmits a rotation signal to the nozzle unit 4 (step Sc8). Upon receiving this rotation signal, the nozzle unit 4 rotates the water discharge unit 41 in the direction indicated by the signal (step Sc9).

[0074] Thereafter, when the center personnel performs a water discharge operation on the local operation unit 6 (step Sc10), the local control panel 5 sends a water discharge request signal to the nozzle unit 4 (step Sc11). At that time, if the local control panel 5 cannot confirm an ACK from the nozzle unit 4, it performs a retry. If confirmation is still not possible after the retry, the operation is terminated.

[0075] When the nozzle unit 4 receives the water discharge 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, it sends a water discharge start signal 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 onto the fire source.

[0076] After the start valve is opened, when the local control panel 5 receives an ON signal from the pressure switch installed on the secondary side of the start valve (step Sc17), it sends a water discharge signal indicating that water discharge has started to the nozzle unit 4 (step Sc18). When the nozzle unit 4 receives this water discharge signal, it updates its own status information from "confirmed" to "water discharge" (step Sc19). This concludes the description of the manual fire extinguishing mode.

[0077] 1-2-3. Water discharge stop and recovery operation Next, the water discharge stop and recovery operations will be explained. Fig. 19 is a sequence diagram showing the water discharge stop and recovery operations. The operations shown in the same figure assume that water discharge is stopped and recovered in response to the operation of the central operation panel 3.

[0078] When the central operator performs a water discharge stop operation (step Sd1), the central operation panel 3 transmits a water discharge stop signal to the nozzle unit 4 (step Sd2). If the production panel 3 cannot confirm an ACK from the nozzle unit 4, it performs a retry. If confirmation is still not possible after the retry, it terminates operation. 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 stops.

[0079] After the start valve is closed, when the local control panel 5 receives an OFF signal from the pressure switch installed on the secondary side of the start valve (step Sd5), it sends a stop signal indicating that water discharge has stopped to the nozzle unit 4 (step Sd6). Upon receiving this stop signal, the nozzle unit 4 updates its own status information from "water discharge" to "confirmed" (step Sd7).

[0080] Thereafter, when a full recovery operation is performed by the center personnel (step Sd8), the central operation panel 3 sends an operation request signal to the nozzle unit 4 (step Sd9). At that time, if the central operation panel 3 cannot confirm an ACK from the nozzle unit 4, it performs a retry. If confirmation is still not possible after the retry, it terminates the operation. When the nozzle unit 4 receives the operation request signal, it updates its own operation authority information to "open" (step Sd10). "Open" here means that the operation authority does not exist in either the central operation panel 3 or the local control panel 5. In addition, the nozzle unit 4 performs a recovery operation (step Sd11), and when the recovery operation is completed, it updates its own status information from "confirmed" to "stored."

[0081] Thereafter, when a center staff member performs a pump stop operation on a fire pump panel (not shown), the central operation panel 3 turns off the display of the fire pump operation (step Sd12). This concludes the explanation of how to stop and restore water discharge.

[0082] Next, Fig. 20 is another sequence diagram showing the water discharge stop and recovery operation. The operation shown in this figure assumes that water discharge is stopped and recovered in response to the operation of the local operation unit 6 connected to the local control panel 5.

[0083] When a water discharge stop operation is performed on the local operation unit 6 by a center staff member (step Se1), the local control panel 5 sends a water discharge stop request signal to the nozzle unit 4 (step Se2). At that time, if the local control panel 5 cannot confirm an ACK from the nozzle unit 4, it performs a retry. If confirmation is still not possible after the retry, it terminates operation. When the nozzle unit 4 receives the water discharge stop request signal, it transfers the signal to the central operation panel 3 (step Se3). When the central operation panel 3 receives this water discharge stop request signal, it transmits a water discharge stop signal to the nozzle unit 4 (step Se4). The nozzle unit 4 acknowledges this water discharge stop When the signal is received, the signal is transferred 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 stops.

[0084] After the start valve is closed, when the local control panel 5 receives an OFF signal from the pressure switch installed on the secondary side of the start valve (step Se7), it sends a stop signal indicating that water discharge has stopped to the nozzle unit 4 (step Se8). When the nozzle unit 4 receives this stop signal, it updates its own status information from "water discharge" to "confirmed" (step Se9).

[0085] Thereafter, when a center staff member performs a recovery operation on the local operation unit 6 (step Se10), the local control panel 5 sends an operation request signal to the nozzle unit 4 (step Se11). At that time, if the local control panel 5 cannot confirm an ACK from the nozzle unit 4, it performs a retry. If confirmation is still not possible after the retry, it terminates the operation. When the nozzle unit 4 receives the operation request signal, it updates its own operation right information to "released" (step Se12). In addition, it executes a recovery operation (step Se13), and when the recovery operation is completed, it updates its own status information from "confirmed" to "stored."

[0086] Thereafter, when the center personnel performs a pump stop operation on the fire pump panel, the central operation panel 3 turns off the display of the fire pump operation (step Se14). This concludes the explanation of how to stop and restore water discharge. In the above-described water discharge stop and recovery operations, the central operation panel 3 outputs a water discharge stop signal, but the nozzle unit 4 may output the water discharge stop signal instead of the central operation panel 3. In this case, the nozzle unit 4 receives a water discharge stop request signal sent from the local control panel 5 and sends a water discharge stop signal to the local control panel 5.

[0087] 2. Modification of the First Embodiment The first embodiment described above may be modified as follows: The following modifications may be combined with each other.

[0088] 2-1. Variation 1 As described above, the sensing section 42 of the nozzle unit 4 is composed of the infrared linear sensor 421 and the flame detector 422. However, this configuration is merely an example. It may be composed of another sensor as long as it is capable of detecting and detecting a fire source.

[0089] 2-2. Variation 2 An auxiliary sensor may be included in the fire extinguishing system 1. The auxiliary sensor here refers to a terminal device equipped with the sensing unit 42, control unit 43, and signal relay unit 44 provided in the nozzle unit 4. In other words, it refers to a nozzle unit 4 without the water discharge unit 41. This auxiliary sensor is installed in the high ceiling part of building B.

[0090] The auxiliary sensor is communicatively connected to the central operation panel 3 via a looped wiring L2, similar to the nozzle unit 4. In addition, the auxiliary sensor is communicatively connected to the local control panel 5 via a looped wiring L3.

[0091] This auxiliary sensor operates in the automatic fire extinguishing mode as follows. First, when the central operation panel 3 receives a detector alarm signal from the fire receiver, it identifies the nozzle units 4 and auxiliary sensors installed within the alert zone of the detector that has triggered the alarm, and then transmits a search start signal to the identified nozzle units 4 and auxiliary sensors.

[0092] When the auxiliary sensor receives this detection start signal, it starts detecting the fire source. If a fire source is detected as a result of the inspection, a fire source position signal indicating the rotation angle at the time the fire source was detected is sent to the central operation panel 3.

[0093] The central control panel 3 receives fire source location signals from all nozzle units 4 and auxiliary sensors in the fire compartment, or when a predetermined time has passed since receiving the first fire source location signal, and selects the nozzle unit 4 best suited to spraying water based on the received fire source location signal. In this way, the fire source location signal sent from the auxiliary sensor is referenced to select the nozzle unit 4 best suited to spraying water.

[0094] 2-3. Variation 3 The local operation unit 6 is equipped with a touch screen 62 as a display unit and an operation unit. In other words, the local operation unit 6 is equipped with a display and a touch panel. Instead of this touch panel, another operation unit such as hard keys may be provided.

[0095] 2-4. Variation 4 The detector of the automatic fire alarm system 2 is not limited to an analog type, but may be a detector with fixed sensitivity. Also, the fire receiver is not limited to an R type, but may be a P type.

[0096] 2-5. Variation 5 The local operation unit 6 may be communicatively connected to the local control panel 5 wirelessly rather than by wire.

[0097] 3. Second embodiment 3-1.Configuration A fire extinguishing system 10 according to a second embodiment of the present invention will be described with reference to the drawings. The fire extinguishing system 10 according to this embodiment is a sprinkler system such as a water-discharging head, similar to the fire extinguishing system 1 according to the first embodiment. However, unlike the first embodiment, a fixed head is used as the fire extinguishing device.

[0098] 21 is a diagram showing the configuration of the fire extinguishing system 10. The fire extinguishing system 10 shown in the figure is installed in a building C having three protected compartments.

[0099] Smoke detectors 11 are installed in each protected section of building C. These smoke detectors 11 are connected via signal lines to a fire receiver 12 installed in the disaster prevention center. When the smoke detectors 11 detect a fire, they transmit a fire signal to the fire receiver 12. Fire receiver 12 is connected via a signal line to a water sprinkler control panel 14 installed in the disaster prevention center, and upon receiving a fire signal, transfers the signal to water sprinkler control panel 14. Water sprinkler control panel 14 is connected via a signal line to a remote control valve 18, and is a device for automatically or manually controlling remote control valve 18.

[0100] Furthermore, a flame detector 13 is installed in each protected section of building C. This flame detector 13 is connected to a sprinkler control panel 14 via a signal line. When this flame detector 13 detects a fire, it sends a fire signal to the sprinkler control panel 14.

[0101] Furthermore, a local control panel 15 is installed in a position overlooking each of the protected areas of Building C. This local control panel 15 is connected to the sprinkler control panel 14 via a signal line. This local control panel 15 is a device for manually controlling the remotely operated valve 18. A portable local operation unit 16 is detachably connected to this local control panel 15. This local operation unit 16 is an information processing device used to operate the local control panel 15.

[0102] In addition, a fixed head 17 is installed in each protected section of building C. The port 17 is connected via piping to the secondary side of a remotely operated valve 18. The primary side of the remotely operated valve 18 is connected via piping to a pressurized water supply device 19 installed in the fire pump room. This pressurized water supply device 19 is controlled by a pump control panel 20, which is connected to the sprinkler control panel 14 via a signal line. The sprinkler control panel 14, the local control panel 15 and the local operation unit 16 will be described in more detail below.

[0103] 3-1-1. Sprinkler control panel 14 22 is a block diagram showing an example of the internal configuration of sprinkler control panel 14. Sprinkler control panel 14 shown in the figure includes control unit 141, storage unit 142, display / operation panel 143, and communication unit 144. Of these components, display / operation panel 143 will be described first.

[0104] Figure 23 is a diagram showing an example of the display / operation panel 143. The display / operation panel 143 shown in the figure is equipped with a fire light Lp3. This fire light Lp3 is an indicator light that turns on when a fire occurs. The display / operation panel 143 also has a district light for each protected section. This district light is an indicator light for indicating the status of a fire, and is composed of three indicator lights: a division light Lp4, a fire alarm light Lp5, and a dedicated fire extinguishing light Lp6.

[0105] The display / operation panel 143 also includes a key switch Sw1. This key switch Sw1 is a switch for switching the water discharge mode between an automatic water discharge mode and a manual water discharge mode. Here, the automatic water discharge mode is a fire extinguishing mode in which a series of operations from fire detection to water discharge are performed automatically, while the manual water discharge mode is a fire extinguishing mode in which fire detection and the issuance of an alarm are performed automatically, with water discharge initiated in response to operation of the water discharge control panel 14 or the local operation unit 16.

[0106] The display / operation panel 143 also includes a water-discharge mode indicator light Lp7. The water-discharge mode indicator light Lp7 is an indicator light for indicating the currently selected water-discharge mode. The display / operation panel 143 also includes an audio stop switch Sw2. The audio stop switch Sw2 is a switch for stopping the sound of the fire alarm of the water-sprinkling control panel 14.

[0107] The display operation panel 143 also has a timer operation light Lp8. This timer operation light Lp8 is an indicator light that flashes after a fire is confirmed until water discharge starts. The display operation panel 143 also has a remaining time indicator D. This remaining time indicator D displays the time remaining until water discharge starts after a fire is confirmed.

[0108] The display / operation panel 143 also has a water-discharge zone selection switch Sw3 for each protected zone. This water-discharge zone selection switch Sw3 is a switch for selecting a water-discharge zone. The display / operation panel 143 also has a water-discharge start switch Sw4, a water-discharge light Lp9, and a water-discharge stop switch Sw5. Of these, the water-discharge start switch Sw4 is a switch for instructing the start of water-discharge, the water-discharge light Lp9 is an indicator light that lights up while water is being discharged, and the water-discharge stop switch Sw5 is a switch for instructing the stop of water-discharge.

[0109] The display operation panel 143 also includes a recovery switch Sw6. The recovery switch Sw6 is a switch for recovering the fire extinguishing system 10.

[0110] Next, the control unit 141 will be described. The control unit 141 is configured with a processor and a memory, and various functions are realized by the processor executing programs stored in the memory. The realized functions include a water discharge control unit 1411, a display control unit 1412, and a signal transmission unit 1413, as shown in Fig. 22.

[0111] Of these, the water discharge control unit 1411 controls the water discharge from the fixed head 17 in response to a fire signal received from the fire receiver 12 and the flame detector 13, or in response to an operation by disaster prevention personnel.

[0112] The display control unit 1412 controls the display on the display operation panel 143 in response to a fire signal received from the fire receiver 12 and the flame detector 13, or in response to an operation by disaster prevention personnel.

[0113] The signal transmitting unit 1413 transmits a display control signal to the local control panel 15 in response to a fire signal received from the fire receiver 12 and the flame detector 13, or in response to an operation by disaster prevention personnel. The transmitted display control signal is a signal for controlling the display on the display operation panel 163 of the local operation unit 16.

[0114] 3-1-2. Local control panel 15 As described above, the portable local operation unit 16 can be detachably connected to the local control panel 15. The portable local operation unit 16 is equipped with a display / operation panel 163, as will be described later, and the local control panel 15 is operated using this display / operation panel 163. Therefore, the local control panel 15 does not need to be equipped with a display / operation panel. Therefore, the local control panel 15 can be made smaller than conventional local operation panels.

[0115] In addition, the local operation unit 16 is portable and connected to the local control panel 15 via a cable. Therefore, a user of the local operation unit 16 can operate the control panel from a location away from the local control panel 15. For example, the user can move to a location where the fixed head 17 is visible and operate the local control panel 15. Therefore, unlike conventional local operation panels, the local control panel 15 does not need to be installed in a location where the fixed head 17 is visible. In other words, the local control panel 15 has a high degree of freedom in installation. Furthermore, since the local control panel 15 can be installed in an inconspicuous location, for example, there is no need to consider manufacturing it to match the color of the wall at the installation location.

[0116] Next, the internal configuration of this on-site control panel 15 will be described. 24 is a block diagram showing an example of the internal configuration of the on-site control panel 15. The on-site control panel 15 shown in the figure includes a control unit 151, a storage unit 152, and a communication unit 153. The control unit 151 is composed of a processor and memory, and various functions are realized by the processor executing programs stored in the memory. The realized functions include a display control information management unit 1511, a display control information output unit 1512, and a signal transmission unit 1513.

[0117] The display control information management unit 1511 manages the display control information in response to a display control signal received from the sprinkler control panel 14. The managed display control information is information for controlling the display of the display operation panel 163 of the local operation unit 16. Specifically, it is a flag indicating the on / off status of each indicator light.

[0118] The display control signal received by the display control information management unit 1511 includes a signal for controlling the water discharge light Lp17, which will be described later. There are two types of signals: a signal to instruct the water discharge light Lp17 to be turned on, and a signal to instruct the water discharge light Lp17 to be turned off. The former signal is transmitted from the water spray control panel 14 when water discharge from the fixed head 17 starts, and the latter signal is transmitted from the water spray control panel 14 when water discharge from the fixed head 17 stops. Therefore, these two signals can be said to be information that represents the water discharge status of the fixed head 17. When the display control information management unit 1511 receives the former signal of these two signals, it sets the water discharge light flag to on, and when it receives the latter signal, it sets the flag to off. This As described above, the flag setting is performed according to the type of signal, and therefore the water discharge light flag can also be said to be information indicating the water discharge status of the fixed head 17.

[0119] The display control information output unit 1512 outputs the display control information stored in the local control panel 15 to the local operation unit 16 .

[0120] The signal transmitting unit 1513 transmits a control signal to the sprinkler control panel 14 in response to an operation signal input from the local operation unit 16.

[0121] 3-1-3. Local Operation Unit 16 Local operation unit 16 has a roughly rectangular parallelepiped housing and terminals arranged on the bottom surface of the housing (both not shown). The terminals are devices for establishing a communication connection with local control panel 15 and sprinkler control panel 14 via cables (or via cables and connector boxes). Local operation unit 16 is detachably connected to local control panel 15 and sprinkler control panel 14 via these terminals. Local operation unit 16 is normally connected to sprinkler control panel 14, and when in use, it is removed from sprinkler control panel 14, brought to the site, and connected to local control panel 15.

[0122] 25 is a block diagram showing an example of the internal configuration of the local operation unit 16. The local operation unit 16 shown in the figure includes a control unit 161, a storage unit 162, a display / operation panel 163, and a communication unit 164. Of these components, the display / operation panel 163 will be described first.

[0123] Fig. 26 is a diagram showing an example of the display / operation panel 163. The display / operation panel 163 shown in the figure is provided with a fire light Lp10. This fire light Lp10 is an indicator light that turns on when a fire occurs. The display / operation panel 163 also has a district light for each protected section. This district light is an indicator light that shows the status of a fire, and is composed of three indicator lights: a division light Lp11, a fire alarm light Lp12, and a dedicated fire extinguishing light Lp13.

[0124] The display / operation panel 163 also includes a key switch Sw7. This key switch Sw7 is a switch for selecting whether or not operation on the panel is possible. The display / operation panel 163 also includes an operation possibility indicator light. This operation possibility indicator light is an indicator light for indicating whether or not operation on the panel is possible, and is composed of two indicator lights: an operation possibility light Lp14 and an operation possibility light Lp15.

[0125] The display / operation panel 163 also has a timer operation light Lp16. This timer operation light Lp16 is an indicator light that flashes after a fire is confirmed until water discharge starts. The display / operation panel 163 also has a timer stop switch Sw8. This timer stop switch Sw8 is a switch for stopping the countdown of the water discharge start timer.

[0126] The display / operation panel 163 also has a water-discharge zone selection switch Sw9 for each protected zone. This water-discharge zone selection switch Sw9 is a switch for selecting a water-discharge zone. The display / operation panel 163 also has a water-discharge start switch Sw10, a water-discharge light Lp17, and a water-discharge stop switch Sw11. Of these, the water-discharge start switch Sw10 is a switch for instructing the start of water-discharge, the water-discharge light Lp17 is an indicator light that lights up while water is being discharged, and the water-discharge stop switch Sw11 is a switch for instructing the stop of water-discharge.

[0127] Next, the control unit 161 will be described. The control unit 161 is configured with a processor and a memory, and various functions are realized by the processor executing programs stored in the memory. As shown in FIG. 25, the realized functions include a display control information acquisition unit 1611, a display control unit 1612, and an operation A signal output unit 1613 is included.

[0128] The display control information acquisition unit 1611 acquires the display control information from the local control panel 15. This acquisition of the display control information is performed when the local operation unit 16 is connected to the local control panel 15 and started up, and when the display control information is updated in the local control panel 15.

[0129] The display control unit 1612 controls the display of the display operation panel 163 based on the display control information acquired by the display control information acquisition unit 1611 .

[0130] When the display operation panel 163 is operated, the operation signal output unit 1613 outputs a signal representing the operation to the local control panel 15 .

[0131] 3-2.Operation The fire extinguishing operation of the fire extinguishing system 10 will be described below. Specifically, the automatic water discharge mode and the manual water discharge mode will be described.

[0132] 3-2-1.Automatic water discharge mode 27 and 28 are sequence diagrams showing the automatic water discharge mode. When a fire breaks out in building C and the smoke detector 11 detects the fire, it transmits a fire signal to the fire receiver 12. When the fire receiver 12 receives the fire signal, it transfers it to the sprinkler control panel 14. Upon receiving the transfer (step Sf1), the sprinkler control panel 14 turns on the automatic fire alarm light Lp5 of the protected compartment where the fire has occurred (step Sf2). In addition, it transmits an automatic fire alarm light on signal to the local control panel 15 (step Sf3). Upon receiving the automatic fire alarm light on signal, the local control panel 15 sets the automatic fire alarm flag of the protected compartment where the fire has occurred to on (step Sf4). As a result, when the local operation unit 16 is connected to this local control panel 15, the local operation unit 16 turns on the automatic fire alarm light Lp12 of the protected compartment where the fire has occurred.

[0133] Thereafter, when the flame detector 13 detects the fire, the flame detector 13 transmits a fire signal to the sprinkler control panel 14. Upon receiving the fire signal (step Sf5), the sprinkler control panel 14 turns on the fire extinguishing light Lp6 in the protected compartment where the fire occurred (step Sf6). In addition, the sprinkler control panel 14 transmits a fire extinguishing light turn-on signal to the local control panel 15 (step Sf7). Upon receiving the fire extinguishing light turn-on signal, the local control panel 15 sets the fire extinguishing light flag for the protected compartment where the fire occurred to on (step Sf8). As a result, when the local operation unit 16 is connected to this local control panel 15, the local operation unit 16 turns on the fire extinguishing light Lp13 in the protected compartment where the fire occurred.

[0134] When the sprinkler control panel 14 determines that the smoke detector 11 and the flame detector 13 installed in the same protected area have been activated, it concludes that a fire has occurred (step Sf9). It then turns on the area light Lp4 and the fire light Lp3 for the protected area where the fire has occurred (step Sf10). It also starts the countdown of the water spray start timer (step Sf11), flashes the timer operation light Lp8, and displays the remaining time on the remaining time display D (step Sf12). It then transmits a signal to turn on the area lights, etc. to the local control panel 15 (step Sf13). Upon receiving the signal to turn on the area lights, etc., the local control panel 15 sets the area light flag, fire light flag, timer operation light flag, and operable light flag for the protected area where the fire has occurred to on (step Sf14). As a result, when the local operation unit 16 is connected to this local control panel 15, the local operation unit 16 turns on the compartment light Lp11 of the protected compartment where the fire has occurred, the fire light Lp10, and the operable light Lp14, and flashes the timer operation light Lp16.

[0135] After that, when the countdown of the water discharge start timer ends (step Sf15), the water discharge control panel 14 opens the remote control valve 18 of the protected area where the fire occurred and sends a pump control signal to the pump control panel 20. The local control panel 15 then transmits a pump activation signal (step Sf16). As a result, water is sprayed from the fixed head 17 in the protected area where the fire has occurred. When the water spray control panel 14 receives an ON signal from a pressure switch (not shown) as a result of this water spraying, it turns on the water spray light Lp9 (step Sf17). In addition, it transmits a water spray light turn-on signal to the local control panel 15 (step Sf18). When the local control panel 15 receives the water spray light turn-on signal, it sets the water spray light flag to ON and the timer operation light flag to OFF (step Sf19). As a result, when the local operation unit 16 is connected to this local control panel 15, the local operation unit 16 turns on the water spray light Lp17 and turns off the timer operation light Lp16.

[0136] After that, when the disaster prevention personnel confirm that the fire is extinguished and press the water discharge stop switch Sw5 on the water discharge control panel 14 (step Sf20), the water discharge control panel 14 closes the remotely operated valve 18 that was opened in step Sf16 (step Sf21). As a result, water discharge from the fixed head 17 stops. When the water discharge results in the water discharge and the water discharge control panel 14 receives an OFF signal from the pressure switch, it turns off the water discharge light Lp9 (step Sf22). In addition, it sends a water discharge light turn-off signal to the local control panel 15 (step Sf23). When the local control panel 15 receives the water discharge light turn-off signal, it sets the water discharge light flag to OFF (step Sf24). As a result, when the local operation unit 16 is connected to this local control panel 15, the local operation unit 16 turns off the water discharge light Lp17.

[0137] Thereafter, when the disaster prevention personnel presses the recovery switch Sw6 on the sprinkler control panel 14 (step Sf25), the sprinkler control panel 14 turns off the compartment lights Lp4, the fire alarm lights Lp5, and the fire extinguishing lights Lp6 in all protected compartments (step Sf26). Additionally, the sprinkler control panel 14 transmits a compartment light, etc., turn-off signal to the local control panel 15 (step Sf27). Upon receiving the compartment light, etc., turn-off signal, the local control panel 15 sets the compartment light flags, fire alarm light flags, and fire extinguishing lights flags for all protected compartments to off (step Sf28). As a result, when the local operation unit 16 is connected to this local control panel 15, the local operation unit 16 turns off the compartment lights Lp11, fire alarm lights Lp12, and fire extinguishing lights Lp13 in all protected compartments. This concludes the description of the automatic water discharge mode.

[0138] In the automatic water discharge mode, if disaster prevention personnel conduct an on-site inspection and determine that the alarm is not a fire alarm, the countdown of the water discharge start timer may be stopped. There are two ways to stop the countdown: operating the key switch Sw1 on the water discharge control panel 14 to switch the water discharge mode to the manual water discharge mode, or pressing the timer stop switch Sw8 on the local operation unit 16. In the latter of these two methods, when the timer stop switch Sw8 on the local operation unit 16 is pressed, the local control panel 15 sends a timer stop signal to the water discharge control panel 14. Upon receiving the timer stop signal, the water discharge control panel 14 stops the countdown.

[0139] Furthermore, in the above explanation, the water discharge stop command is given using the water discharge control panel 14, but the water discharge stop command may also be given using the local operation unit 16 instead of the water discharge control panel 14. In this case, the disaster prevention personnel presses the water discharge stop switch Sw11 of the local operation unit 16. In response to this operation, the local control panel 15 sends a water discharge stop signal to the water discharge control panel 14. Upon receiving the water discharge stop signal, the water discharge control panel 14 closes the remotely operated valve 18 that was opened in step Sf16. As a result, the water discharge from the fixed head 17 stops.

[0140] 3-2-2.Manual water discharge mode 29 and 30 are sequence diagrams showing the manual water-discharge mode. Of the steps shown in these figures, steps Sf1 to Sf10 are common to the automatic water-discharge mode, and therefore their description will be omitted.

[0141] After executing step Sf10, the sprinkler control panel 14 transmits a signal to turn on the compartment lights, etc. to the local control panel 15 (step Sg1). When the local control panel 15 receives the signal to turn on the compartment lights, etc., it sets the compartment light flag, fire light flag, and operable light flag of the protected section where the fire occurred to on (step Sg2). As a result, when the local operation unit 16 is connected to this local control panel 15, the local operation unit 16 turns on the compartment light Lp11, fire light Lp10, and operable light Lp14 of the protected section where the fire occurred.

[0142] After that, when disaster prevention personnel confirm the occurrence of a fire by conducting an on-site inspection, they issue a command to manually spray water. Specifically, on the water spray control panel 14, they press the water spray section selection switch Sw3 for the protected section where the fire occurred, and then press the water spray start switch Sw4. When the water spray control panel 14 receives these operations (step Sg3), it opens the remote-operated valve 18 for the selected protected section and sends a pump start signal to the pump control panel 20 (step Sg4). As a result, water is sprayed from the fixed head 17 in the selected protected section. When the water spray control panel 14 receives an ON signal from a pressure switch (not shown) as a result of this water spraying, it turns on the water spray light Lp9 (step Sg5). In addition, it sends a water spray light ON signal to the local control panel 15 (step Sg6). When the local control panel 15 receives the water spray light ON signal, it sets the water spray light flag to ON (step Sg7). As a result, when the local operation unit 16 is connected to this local control panel 15, the local operation unit 16 turns on the water discharge lamp Lp17.

[0143] The subsequent steps Sf20 to Sf28 are common to the automatic water discharge mode, and therefore their explanation will be omitted. This concludes the description of the manual water discharge mode.

[0144] In the above explanation, manual water discharge is commanded using the water sprinkler control panel 14, but manual water discharge may also be commanded using the local operation unit 16 instead of the water sprinkler control panel 14. In this case, the disaster prevention personnel presses the water discharge section selection switch Sw9 of the protected section where the fire has occurred on the local operation unit 16, and then presses the water discharge start switch Sw10. In response to these operations, the local control panel 15 sends a water discharge start signal to the water sprinkler control panel 14. Upon receiving the water discharge start signal, the water sprinkler control panel 14 opens the remote operation valve 18 of the selected protected section and sends a pump start signal to the pump control panel 20. As a result, water is discharged from the fixed head 17 in the selected protected section.

[0145] In the above explanation, manual water discharge is instructed after the fire is confirmed, but if disaster prevention personnel discover a fire before the fire is confirmed, manual water discharge may be instructed before the fire is confirmed. However, if such an instruction is given using the local operation unit 16, it is necessary to operate the key switch Sw7 to enable operation on the panel of the local operation unit 16 before issuing the instruction to manually discharge water.

[0146] 4. Modification of the Second Embodiment The second embodiment described above may be modified as follows: The following modifications may be combined with each other.

[0147] 4-1. Variation 1 The local operation unit 16 includes a display / operation panel 163 as a display section and an operation section. However, instead of the display / operation panel 163, a touch screen may be provided.

[0148] 4-2. Variation 2 The local operation unit 16 may be communicatively connected to the local control panel 15 wirelessly rather than by wire. [Explanation of symbols]

[0149] 1...Fire extinguishing system, 2...Automatic fire alarm equipment, 3...Central operation panel, 4...Nozzle unit, 5...Local control panel, 6...Local operation unit, 7...Control panel, 10...Fire extinguishing system, 11...Smoke detector, 12...Fire receiver, 13...Flame detector, 14...Sprinkler control panel, 15...Local control panel, 16...Local operation unit, 17...Fixed head, 18...Remote control valve, 19...Pressurized water supply device, 20...Pump control panel, 31...Control control unit, 32...storage unit, 33...display unit, 34...operation unit, 35...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...casing, 62...touch screen, 63...call switch, 64...jack, 65...terminal, 66...control unit, 67...storage unit, 68...communication unit, 141...control unit, 142...storage unit, 143...display operation panel 144...communication unit, 151...control unit, 152...storage unit, 153...communication unit, 161...control unit, 162...storage unit, 163...display operation panel, 164...communication unit, 311...nozzle control unit, 312...nozzle information management unit, 313...test unit, 314...display control unit, 315...zone information management unit, 316...zone information synchronization unit, 421...infrared linear sensor, 422...flame detector, 511...nozzle information management unit , 512... nozzle information output unit, 513... nozzle control unit, 661... nozzle information acquisition unit, 662... display control unit, 663... operation signal output unit, 1411... water discharge control unit, 1412... display control unit, 1413... signal transmission unit, 1511... display control information management unit, 1512... display control information output unit, 1513... signal transmission unit, 1611... display control information acquisition unit, 1612... display control unit, 1613... operation signal output unit

Claims

1. a communication unit that communicates with a local control panel for instructing the discharge of water from a fire extinguishing device connected to the central operation panel; a storage unit for storing status information of the fire extinguisher acquired via the communication unit; an operation unit that accepts operation input from a user; a display unit that displays a screen including the status information; a portable housing that houses the communication unit, the operation unit, and the display unit; and The display unit displays a list of fire extinguishing devices connected to the central operation panel, the list including information regarding each fire extinguishing device as to whether the local control panel is in a local independent state in which control from the central operation panel is not accepted. Local operation unit.

2. When the on-site control panel acquires the operation right by the image object, and the user inputs an operation for controlling the discharge of water from the fire extinguisher via the operation unit, the communication unit outputs an operation signal representing the operation to the on-site control panel. The field operation unit according to claim 1 .

3. When one fire extinguisher is selected from the list, the display unit displays the screen related to the selected fire extinguisher. The field operation unit according to claim 1 .

4. The local operation unit according to claim 1 , the on-site control panel; and the fire extinguishing device A fire extinguishing system having:

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