Water discharge type fire-extinguishing facility

Abstract

To enable an operator of an on-site operation section to visually recognize an actual water discharge state from a water discharge section toward a fire source position accurately and facilitate an adjustment operation of the water discharge section by the on-site operation section.SOLUTION: A water discharge type fire-extinguishing facility comprises: a water cannon device that discharges fire-extinguishing water to a predetermined protected area; a scanning-type fire detector that detects a fire occurring in the protected area and a fire source position indicating a fire occurrence location in the protected area; an on-site operation section that performs an operation to direct the water cannon device to the fire source position detected by the scanning-type fire detector and discharge fire-extinguishing water; a surveillance camera that captures an image of the protected area; an operation section display 90 provided integrally with the on-site operation section; and a display control section that causes the operation section display 90 to display a water discharge image 102 indicating the fire source position detected by the scanning-type fire detector in a surveillance image captured by the surveillance camera when a fire occurs in the protected area.SELECTED DRAWING: Figure 13

Description

[Technical Field]

[0001] The present invention relates to a water-discharge type fire extinguishing system that, when a fire breaks out in a protected area, discharges fire-extinguishing water from a water-discharge section to extinguish and suppress the fire. [Background technology]

[0002] Conventionally, facilities (buildings) with large spaces such as ballparks and exhibition halls, and facilities (buildings) with high ceilings such as stores and warehouses have been legally required to install sprinkler systems (water-discharge fire extinguishing systems) equipped with water-discharge heads, and these are categorized by law into water-discharge fire extinguishing systems with movable heads and water-discharge fire extinguishing systems with fixed heads. Of these, a representative example of water-discharge fire extinguishing systems with movable heads is a system that combines a scanning fire detector with a water-discharge gun device (water-discharge unit) (Patent Document 1).

[0003] Water-cannon fire extinguishing equipment using water cannons is equipped with a water cannon that discharges fire-extinguishing water into the protected area (area to be extinguished) of a facility, etc., an on-site control unit that controls the water cannon's operations such as water discharge and horizontal rotation, and an on-site operation unit that performs operations to instruct these operations.In addition, a disaster prevention center or the like located away from the protected area is equipped with a central monitoring unit that manages and monitors all on-site control units, and a central operation unit that can selectively operate all the water cannons.

[0004] In the event of a fire occurring in a protected area, the location of the fire source (place where the fire started) is identified based on information from the scanning fire detector, and fire-extinguishing operations are carried out by spraying water from the corresponding water cannon device toward the fire source, either automatically controlled by the central monitoring unit or manually operated by the local control unit or central control unit.

[0005] Here, the water cannon device can be operated from the local control unit and the central control unit, but in the event of a fire, firefighting activities are basically carried out after the fire is confirmed on site (protected area), so the local control unit is more likely to be used in the event of a fire than the central control unit. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-223436 [Patent Document 2] Japanese Patent Application Publication No. 5-1948 Summary of the Invention [Problem to be solved by the invention]

[0007] However, in conventional water-cannon fire extinguishing equipment, when a fire breaks out and an attendant operates the on-site control unit to spray fire-extinguishing water from the water cannon device, the on-site control unit is not necessarily installed in a position that overlooks the entire protected area, or the protected area is a large space and the fire source is far from the on-site control unit.As a result, even if an attendant visually checks the protected area from the on-site control unit, depending on the location of the fire source, it may be difficult to confirm whether the fire-extinguishing water being sprayed from the water cannon device is reaching the fire source correctly, which means that it takes time to contain and extinguish the fire.

[0008] Furthermore, when a water cannon device is installed in an outdoor facility such as a ball field, the longer the water cannon distance, the more susceptible it will be to the effects of wind. Even if the water cannon device's water cannon axis is correctly aimed at the fire source, the water that is actually sprayed will be affected by the wind and may deviate from the fire source. In this case as well, it is difficult to determine whether the water that is sprayed has deviated from the fire source, and it takes time to contain and extinguish the fire.

[0009] The present invention aims to provide a water-discharge type fire extinguishing system that allows an operator of an on-site operation unit to visually correctly recognize the actual water discharge situation from the water discharge unit toward the fire source location and easily adjust the water discharge unit using the on-site operation unit. [Means for solving the problem]

[0010] (Water spray type fire extinguishing equipment) The present invention provides a water discharge unit that discharges fire extinguishing water into a predetermined protection area; a fire detector for detecting a fire occurring in the protected area as well as a fire source position indicating the location of the fire occurring in the protected area; an on-site operation unit that directs the water discharge unit to the fire source position detected by the fire detector and discharges fire extinguishing water; A water discharge type fire extinguishing system comprising: Furthermore, an imaging device that images the protection area; an image display device provided at a position where it can be seen when operating the local operation unit; a display control unit that, when a fire occurs in the protection area, causes an image display device to display a water discharge image showing the location of the fire source detected by the fire detector on an image captured by the imaging device; The present invention is characterized by the following.

[0011] (Display of water discharge image and floor plan) In addition to the water discharge image, the display control unit causes the image display device to display a plan view of the protected area, showing the water discharge unit, the fire source position, and the water discharge axis representing the water discharge direction and water discharge distance of the water discharge unit.

[0012] (Display of water discharge axis and target water discharge axis) The plan layout diagram shows the target water discharge axis connecting the water discharge section and the fire source location in addition to the water discharge axis.

[0013] (Parallel or alternate display of water discharge image and floor plan) The display control unit causes the image display device to display the water discharge image and the floor plan layout diagram side by side or to switch between them.

[0014] (Water discharge direction adjustment control and water discharge distance adjustment control) The local operation department a water discharge direction adjustment operation unit for adjusting the water discharge direction of the water discharge unit; a water discharge distance adjustment operation unit for adjusting the water discharge distance to the fire source position; Equipped with.

[0015] (Arrangement of the imaging device that captures a side view of the water being discharged from the water discharge section) The imaging device is installed in a position where the imaging axis is at a predetermined angle with respect to the water discharge axis of the water discharge section when the protection area is viewed in a plan view, and where an image of the water discharged from the water discharge section can be captured from the side. [Effects of the Invention]

[0016] (Effect of water discharge type fire extinguishing equipment) The present invention is a water-discharge type fire extinguishing system comprising: a water-discharge unit that discharges fire extinguishing water into a specified protected area; a fire detector that detects a fire that has occurred in the protected area as well as the location of the fire source in the protected area, and an on-site operation unit that operates the water-discharge unit to direct the water-discharge unit to the fire source location detected by the fire detector, and further comprises an imaging device that images the protected area; an image display device that is located in a position that is visible when operating the on-site operation unit; and a display control unit that causes the image display device to display, when a fire has occurred in the protected area, a water-discharge image that indicates the location of the fire source detected by the fire detector in an image captured by the imaging device.Therefore, when a fire has occurred in the protected area and control is performed to discharge fire extinguishing water from the water-discharge unit toward the fire source location by operating the on-site operation unit, a water-discharge image that indicates the location of the fire source in an image captured by the imaging device is displayed on the image display device that is located in a position that is visible from the on-site operation unit that is performing the water-discharge operation, and it is possible to correctly recognize the actual water-discharge situation from the image display device. Furthermore, if the operator notices that the water discharge position is off from the water discharge image, they can adjust the water discharge direction toward the fire source while checking the water discharge image, allowing them to efficiently discharge fire extinguishing water toward the fire source and suppress and extinguish the fire with a small amount of water discharged.

[0017] Furthermore, even if the water discharge axis of the water discharge unit is correctly directed toward the fire source position, the water discharge position may deviate from the fire source position due to the influence of wind, etc. In this case, the actual water discharge situation can be correctly recognized from the image display device, and the deviation of the water discharge position can be confirmed from the water discharge image displayed on the image display device, and adjustment operations can be performed to direct the water toward the fire source position, making it possible to efficiently discharge fire-extinguishing water toward the fire source even when affected by wind, etc.

[0018] (Effect of displaying water discharge images and floor plan diagrams) Furthermore, the display control unit causes the image display device to display, in addition to the water discharge image, a plan layout diagram showing the water discharge unit, the fire source position, and the water discharge axis representing the water discharge direction and water discharge distance of the water discharge unit on the plan view of the protected area. Therefore, in addition to the water discharge image showing the actual water discharge situation, the image display device displays a plan layout diagram showing the water discharge unit, the fire source position, and the water discharge axis of the water discharge unit on the plan view of the protected area, making it possible to easily compare and determine the current water discharge control status based on the plan layout diagram with the actual water discharge situation based on the water discharge image, and to adjust the water discharge unit so as to eliminate any discrepancy in the water discharge position.

[0019] (Effect of displaying the water discharge axis and target water discharge axis) Furthermore, the plan layout diagram displays the target water discharge axis connecting the water discharge unit and the fire source position in addition to the water discharge axis. Therefore, if the operator finds that the water discharge position is off from the fire source position, he or she can simply adjust the water discharge axis so that it overlaps with the target water discharge axis, enabling adjustment operations that are quick, easy, and accurate.

[0020] (Effect of displaying water discharge images and floor plan diagrams side by side or switching between them) In addition, the display control unit is configured to display the water discharge image and the floor plan diagram side by side or switch between them on the image display device, making it easy to compare the water discharge image and the floor plan diagram when displayed side by side, and making it possible to display either the water discharge image or the floor plan diagram larger when displayed switchably, and making it possible to accurately and easily adjust the water discharge position regardless of the display.

[0021] (Effects of the water discharge direction adjustment control and water discharge distance adjustment control) In addition, the on-site operation unit is equipped with a water discharge direction adjustment operation unit that adjusts the water discharge direction of the water discharge unit, and a water discharge distance adjustment operation unit that adjusts the water discharge distance to the fire source location, making it possible to adjust the water discharge direction and water discharge distance of the water discharge unit while viewing the water discharge image.

[0022] (Effect of the placement of the imaging device that captures a side view of the water being discharged from the water discharge section) Furthermore, the imaging device is installed in a position where the imaging axis is at a predetermined angle with respect to the water discharge axis of the water discharge unit when the protected area is viewed in a plan view, and where it can capture an image of the water being discharged from the water discharge unit from the side. This allows the operator to see the water discharge from an angle different from the way the water is discharged as seen from the water discharge image, and the water discharge image makes it easy to see how the fire-extinguishing water discharged from the water discharge unit reaches the fire source position. If the water discharge position is deviated from the fire source position, it is easy to adjust the water discharge position so that the fire-extinguishing water reaches the fire source. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is an explanatory diagram showing the overall configuration of a mobile water-discharge type fire extinguishing system. [Figure 2] FIG. 1 is an explanatory diagram showing a plan view of a ball game field in which a water-discharge type fire extinguishing system is installed. [Figure 3] This is an explanatory diagram showing a cross section of the location where a water cannon device and a surveillance camera are installed in a ball game field. [Figure 4] FIG. 1 is an explanatory diagram showing locations where scanning fire detectors are installed in a ballpark. [Figure 5] 3 is an explanatory diagram showing a bird's-eye view of the protection area divided into protection zones in FIG. 2 as seen from a monitoring camera. [Figure 6] FIG. 10 is an explanatory diagram showing a water discharge image of a protection area captured by a surveillance camera. [Figure 7] FIG. 1 is an explanatory diagram showing a water cannon device. [Figure 8] FIG. 1 is an explanatory diagram showing the functional configuration of the entire water-discharge type fire extinguishing system. [Figure 9] FIG. 2 is an explanatory diagram showing the functional configuration of a local operation console. [Figure 10] FIG. 10 is an explanatory diagram showing an LUT that converts position coordinates detected by a scanning fire detector into water discharge position coordinates of a water cannon device and position coordinates of a monitoring image. [Figure 11] FIG. 2 is an explanatory diagram showing the appearance of a local operation console. [Figure 12] FIG. 10 is an explanatory diagram showing the display screen of the operation unit display during a turning operation. [Figure 13]FIG. 10 is an explanatory diagram showing the display screen of the operation unit display while water is being sprayed. DETAILED DESCRIPTION OF THE INVENTION

[0024] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a water-discharge type fire extinguishing system according to the present invention will be described with reference to the accompanying drawings. However, the present invention is not limited to the following embodiments.

[0025] [Basic concept of the embodiment] First, a basic concept of the embodiment will be described. The embodiment generally relates to a water-discharge type fire extinguishing system that extinguishes and suppresses a fire by discharging extinguishing water from a water-discharge unit to a predetermined protection area.

[0026] Here, in the embodiment, the "water-discharge type fire extinguishing equipment" is described as a water-discharge type fire extinguishing equipment using a movable head that is installed in facilities (buildings) with large spaces such as stadiums and exhibition halls, and facilities with high ceilings such as stores and warehouses, and includes the concept of a "water-discharge type fire extinguishing system."

[0027] In addition, the "protected area" is the area in the target facility, etc. that is protected by suppressing and extinguishing a fire using water-spraying fire extinguishing equipment, i.e., the area within the water spray range of the water spraying unit, and includes concepts such as protected section, fire-extinguishing area, and fire-extinguishing target section.

[0028] In addition, "suppressing and extinguishing a fire" combines the concepts of suppressing a fire and extinguishing a fire. For example, "suppressing a fire" is the concept of suppressing the spread of a fire, the speed at which a fire burns, or the scale of a fire, while "extinguishing a fire" is the concept of putting out the fire. In addition, "suppressing and extinguishing a fire" can refer to either "suppression" or "extinguishing."

[0029] In a water-discharge type fire extinguishing system, a water-discharge unit, a fire detector, and an on-site operation unit are provided for a protected area (on-site), and a plurality of water-discharge units, fire detectors, and on-site operation units may be provided.

[0030] The "water discharge unit" is a device that discharges fire-extinguishing water into a protected area, and is a concept that includes a "movable head" that can change the water discharge range. The "movable head" is a concept that includes a "water cannon device" that horizontally scans a water cannon fixed at a predetermined elevation angle and can switch the water discharge distance, for example, to at least a predetermined short distance, medium distance, or long distance.

[0031] The "fire detector" not only detects a fire that has occurred in the protected area, but also detects the location of the fire source, which indicates where the fire started.Therefore, in a water-spraying fire extinguishing system, the water-spraying section can be directed toward the fire source location based on the fire source location detected by the fire detector, and water can be sprayed.

[0032] The "local operation unit" is an operation unit for directing the water discharge unit to the location of the fire source detected by the fire detector and discharging fire water on-site. For example, if the water discharge unit is a water cannon device, operations of the water discharge unit by the local operation unit include horizontally rotating the water cannon so that it faces the direction of the fire source, selecting the water discharge distance from a predetermined short, medium, or long distance depending on the distance to the fire source (selecting the water discharge pressure corresponding to the short, medium, or long distance), and starting the water discharge to discharge fire water from the water discharge unit.

[0033] The water-discharge type fire extinguishing system of the embodiment is further characterized by including an "imaging device," an "image display device," and a "display control unit."

[0034] Here, an "imaging device" is a device that is installed on the side of a protected area and captures images of the installed protected area, and includes television cameras that capture video, such as ITV cameras, and includes the concept of a surveillance camera.

[0035] Furthermore, an "image display device" is a device that is provided in a position that can be seen when operating the local operation unit, for example, integrated with the local operation unit or in the vicinity of the local operation unit, and that has a screen that displays a predetermined image, and includes devices that have, for example, a liquid crystal display panel, an LED display panel, an organic EL panel (organic electroluminescence panel), etc.

[0036] In addition, the "display control unit" is a device that, in the event of a fire occurring in the protected area, causes the image display device to display a water discharge image showing the location of the fire source detected by the fire detector on the image captured by the imaging device.

[0037] Here, the "water discharge image" is an image captured in real time by an imaging device when a fire breaks out in a protected area, to which information indicating the location of the fire source has been added, and it is an image that allows one to check in real time whether fire extinguishing water is being properly discharged from the water discharge unit toward the fire source. In addition, how the fire source location is indicated in the water discharge image is arbitrary, and includes, for example, displaying a fire source marker or the like at the fire source location in the water discharge image.

[0038] Therefore, when a fire breaks out in the protected area and the local operation unit is operated to control the discharge of fire extinguishing water from the water discharge unit toward the fire source, a water discharge image showing the fire source location is displayed on an image captured by the imaging device on an image display device located in a position visible from the local operation unit performing the water discharge operation, allowing the operator to correctly recognize the actual water discharge situation from the image display unit.In addition, if the operator confirms that the water discharge location is off from the water discharge image, he or she can adjust the water discharge direction toward the fire source location while checking the water discharge image, allowing the fire extinguishing water to be discharged efficiently toward the fire source location and making it possible to suppress and extinguish the fire with a small amount of water discharge.

[0039] Furthermore, even if the water discharge axis of the water discharge unit is correctly directed toward the fire source position, the water discharge position may deviate from the fire source position due to the influence of wind, etc. In this case, the actual water discharge situation can be correctly recognized from the image display device, and the deviation of the water discharge position can be confirmed from the water discharge image displayed on the image display device, and adjustment operations can be performed to direct the water toward the fire source position, making it possible to efficiently discharge fire-extinguishing water toward the fire source even when affected by wind, etc.

[0040] In addition to the water discharge image, the "display control unit" causes the image display device to display a plan view of the protected area, showing the water discharge unit, the fire source position, and the water discharge axis representing the water discharge direction and water discharge distance of the water discharge unit.From this plan view, it is possible to confirm whether the fire extinguishing water is being discharged correctly at the fire source position.

[0041] Furthermore, the "plan layout diagram" displays not only the water discharge axis but also the target water discharge axis connecting the water discharge unit and the fire source location. By displaying the target water discharge axis on the plan layout diagram, if the water discharge position is deviated from the fire source location, adjustments can be made at the on-site operation unit so that the water discharge axis overlaps with the target water discharge axis, improving the speed, ease, and accuracy of adjustment operations.

[0042] In addition, the "display control unit" displays the water discharge image and the floor plan diagram side by side or by switching between them on the image display device. In the case of side by side display, it makes it easy to compare the water discharge image and the floor plan diagram, and in the case of switching between them, it makes it possible to display either the water discharge image or the floor plan diagram larger, and in either case, it makes it possible to accurately and easily adjust the water discharge position.

[0043] The "local operation unit" also includes a water discharge direction adjustment operation unit that adjusts the water discharge direction of the water discharge unit, and a water discharge distance adjustment operation unit that adjusts the water discharge distance to the fire source location.

[0044] The images displayed on the image display device are not limited to the "water discharge image" and "floor layout diagram," but may display other necessary images as appropriate. The same is true for the operation units provided in the "on-site operation unit," which are not limited to the "water discharge direction adjustment operation unit" and the "water discharge distance adjustment operation unit," but may also include other necessary operation units as appropriate.

[0045] Furthermore, the "imaging device" is installed in a position where its imaging axis forms a predetermined angle with respect to the water discharge axis of the water discharge unit when the protected area is viewed in a plan view, and where it can capture an image of the water being discharged from the water discharge unit from the side. Here, the installation location of the imaging device with respect to the protected area is arbitrary, but by installing the imaging device so as to obtain a bird's-eye view of the water being discharged from the water discharge unit from the side, it becomes easy to confirm from the water discharge image captured in real time by the imaging device how the fire-extinguishing water discharged from the water discharge unit reaches the fire source position, i.e., the state of the water discharge point, and if the water discharge point is misaligned from the fire source, it becomes easier to adjust the water discharge direction to eliminate the misalignment.

[0046] Specific embodiments will be described below. In the specific embodiments shown below, the "water discharge unit" is a "water cannon device," the "fire detector" is a "scanning fire detector," the "local operation unit" is a "local operation console," the "imaging device" is a "monitoring camera," and the "image display device" is an "operation unit display integrated into the local operation console."

[0047] [Specific details of the embodiment] We will now explain water discharge type fire extinguishing equipment in more detail. The contents will be explained separately as follows: a. Water type fire extinguishing equipment a1. Overall equipment configuration a2. Surveillance images and water discharge images a3. Water cannon device b. Functional configuration of water discharge type fire extinguishing equipment b1. Functional configuration of the entire facility b2. Functional configuration of the on-site operation console b3. On-site operation console structure and display screen c. Modifications of the present invention

[0048] [a. Water spray type fire extinguishing equipment] This section explains a water cannon fire extinguishing system equipped with a water cannon device as a movable head. In this explanation, reference will be made to Figure 1, which shows the overall configuration of the water cannon fire extinguishing system, Figure 2, which shows a plan view of a ball game field where the water cannon fire extinguishing system is installed, Figure 3, which shows a cross section of the ball game field where the water cannon device and surveillance cameras are installed, and Figure 4, which shows the location of the ball game field where a scanning fire detector is installed.

[0049] (a1. Overall equipment configuration) First, the overall configuration of the water discharge fire extinguishing system will be described. As shown in Fig. 1, in the water discharge fire extinguishing system of the embodiment, a predetermined area of ​​a large space facility such as an indoor ball game stadium, a dome-shaped ball game stadium, or an exhibition hall is set as a protection area (area to be extinguished), and for example, four water cannon devices 10 (10-1) to 10 (10-4), water cannon control panels 16 (16-1) to 16 (16-4), and on-site operation consoles 14 (14-1) to 14 (14-4) are installed on the protection area (on-site) side, and the water cannon devices 10 (10-1) to 10 (10-4) and on-site operation consoles 14 (14-1) to 14 (14-4) are connected to the water cannon control panels 16 (16-1) to 16 (16-4). Also, for example, two scanning fire detectors 50 (50-1) and 50 (50-2) and monitoring cameras 60 (60-1) and 60 (60-2) are installed on the protection area side.

[0050] In addition, the water cannon control panels 16 (16-1) to 16 (16-4), the scanning fire detectors 50 (50-1), 50 (50-2), and the surveillance cameras 60 (60-1), 60 (60-2) are connected to a central monitoring panel 30 installed in the disaster prevention center 28, and a central operation console 32, a monitor device 34, a printer 36, etc. are provided on the central monitoring panel 30.

[0051] In addition, for example, two smoke detectors 54 are installed on the protected area side, and the smoke detectors 54 are connected by a detector line to an automatic fire alarm receiver 40 installed in the disaster prevention center 28, and the automatic fire alarm receiver 40 is connected by a transfer signal line to the central monitoring panel 30. In addition, the automatic fire alarm receiver 40 monitors fires in the protected area using the smoke detectors 54, and outputs a transfer signal to the central monitoring panel 30 when it receives a fire detection signal from the smoke detector 54 that detects a fire.

[0052] The fire pump room 42 is also provided with pump equipment including a pump 44, a pump control panel 46, and a water source tank 48, and the pump control panel 46 is connected to the central monitoring panel 30. The pump 44 is controlled by the pump control panel 46, and its suction side is lowered to the water source tank 48, with the fire extinguishing water piping 24 connected to its discharge side. The fire extinguishing water piping 24 is connected to the water cannon devices 10 (10-1) to 10 (10-4) via simultaneous release valves 18 (18-1) to 18 (18-4) and check valves 20 (20-1) to 20 (20-4), which function as valves for controlling the water discharge pressure.

[0053] A compressor 25 is provided in the fire pump room 42, and the compressor 25 is connected to the water cannon devices 10 (10-1) to 10 (10-4) by air piping 26 via air control valves 22 (22-1) to 22 (22-4).

[0054] Next, the water discharge operation of the water discharge type fire extinguishing system will be described using an example in which a fire is detected by a scanning fire detector 50 (50-1) and water is discharged from the water cannon device 10 (10-1). When the central monitoring panel 30 receives a fire detection signal from the scanning fire detector 50 (50-1) while the central monitoring panel 30 is set to automatic mode, for example, it displays the location of the fire (fire source location) on the central operation console 32 and issues an alarm. It also transmits water discharge setting information, including the horizontal rotation angle and water discharge pressure (target value) corresponding to the fire source location, to the water cannon devices 10 (10-1) to 10 (10-4) corresponding to the fire source location, for example, to the water cannon control panel 16 (16-1) connected to the water cannon device 10 (10-1). The central monitoring panel 30 also outputs a pump start signal to the pump control panel 46 to start the pump 44 and supply pressurized fire extinguishing water to the fire extinguishing water piping 24.

[0055] The water cannon control panel 16 (16-1) rotates the water cannon device 10 (10-1) horizontally to the horizontal rotation angle of the water cannon setting information received from the central monitoring panel 30, and points the water cannon nozzle in the direction of the fire source location. After preparing to discharge water by counting down a predetermined time using a timer, the water cannon control panel 16 (16-1) starts discharging water from the water cannon device 10 (10-1). The water cannon control panel 16 (16-1) adjusts the water cannon pressure by controlling the pressure of the simultaneous release valve 18 (18-1) so that the water cannon pressure becomes the water cannon pressure (target value) of the water cannon setting information received from the central monitoring panel 30.

[0056] In addition, the water cannon control panel 16 (16-1) controls the air control valve 22 (22-1) to open, thereby supplying compressed air from the compressor 25 to the water cannon device 10 (10-1), and the compressed air is sprayed around the fire extinguishing water passing through the water discharge nozzle of the water cannon device 10 (10-1), allowing the water cannon device 10 (10-1) to spray fire extinguishing water over a long distance and a wide range with low water discharge pressure and a small water discharge volume.

[0057] It is also possible to manually operate the local operation console 14 (14-1) connected to the water cannon control panel 16 (16-1) to have the water cannon device 10 (10-1) spray water. In this case, the local operation console 14 (14-1) is operated to obtain operation authority from the central operation console 32. This operation to obtain operation authority cancels the automatic mode of the central monitoring panel 30 and places it in manual mode, allowing manual operation of the water cannon device 10 (10-1) using the local operation console 14 (14-1).

[0058] To manually spray water, the water cannon device 10 (10-1) is rotated horizontally by operating the local operation console 14 (14-1) to point the water cannon nozzle toward the fire source, and the water cannon distance is selected from, for example, long, medium, or short distance, and the water cannon control panel 16 (16-1) controls the pressure of the simultaneous release valve 18 (18-1) to achieve the water cannon pressure (target value) set corresponding to the selected long, medium, or short distance, and also controls the opening of the air control valve 22 (22-1), causing the water cannon device 10 (10-1) to spray fire extinguishing water toward the fire source.

[0059] In addition, the local operation console 14 (14-1) is provided with an image display device such as a liquid crystal display, and when operating the local operation console 14 (14-1), a water discharge image showing the location of the fire source in an image captured by, for example, the surveillance camera 60 (60-1) is displayed in real time on the image display device, and the operator operating the water cannon device 10 (10-1) using the local operation console 14 (14-1) can check the state of water discharge at the fire source from the water discharge image on the image display device of the local operation console 14 (14-1).

[0060] In the manual mode, it is also possible to manually select one of the water cannon devices 10 (10-1) to 10 (10-4) to spray water by operating the central control console 32 after obtaining operating authority at the central control console 32. In this case, too, it is possible to display on the monitor device 34 a water cannon image showing the fire source position in an image captured by the surveillance camera 60 (60-1), for example, and to check on the monitor device 34 how water is being sprayed onto the fire source from the water cannon image.

[0061] Fig. 2 shows a plan view of an example of a ballpark (stadium) where a water-discharge fire extinguishing system is to be installed, Fig. 3 shows a cross section near the water-discharge gun device 10 (10-1) in Fig. 2, and Fig. 4 shows the area near the scanning fire detector 50 (50-1). Note that Fig. 4(A) shows the cross section, and Fig. 4(B) shows the plan view.

[0062] As shown in Figure 2, for example, the central ground area of ​​a ball game stadium is designated as a protected area (area to be extinguished by fire) 56, and four water cannon devices 10 (10-1) to 10 (10-4) are installed surrounding the protected area 56, and on-site operation consoles 14 (14-1) to 14 (14-4) are installed at high positions outside the water cannon devices 10 (10-1) to 10 (10-4), so that the corresponding water cannon devices 10 (10-1) to 10 (10-4) can be manually operated on-site using the on-site operation consoles 14 (14-1) to 14 (14-4).

[0063] In addition, surveillance cameras 60 (60-1) and 60 (60-2) are installed in positions that allow a bird's-eye view of the water being sprayed from the water cannon devices 10 (10-1) to 10 (10-4) toward the fire source position P. For example, in FIG. 3, surveillance camera 60 (60-1) is installed in a high position that allows it to capture the water being sprayed from the water cannon device 10 (10-1) from the back, and the image captured by surveillance camera 60 (60-1) is displayed on the image display device of the on-site operation console 14 (14-1).

[0064] 4, scanning fire detectors 50 (50-1) and 50 (50-2) are installed at high positions that allow a bird's-eye view of the protection area 56 from above outside. Taking the scanning fire detector 50 (50-1) as an example, the scanning fire detector 50 (50-1) uses a horizontal and vertical scanning mechanism to horizontally scan the field of view in predetermined horizontal step scanning angle units, for example, in 1° units, and also performs vertical scanning by rotating the field of view vertically by at least one rotation of the mirror at each horizontal step scanning angle.

[0065] In addition, the scanning fire detector 50 (50-1) detects the vertical scanning angle α and horizontal scanning angle (step scanning angle) β that indicate the position coordinates of the protection area 56 relative to the field of view axis 5010 of the field of view that varies by horizontal and vertical scanning, and can output a signal including the detected position coordinates P(α, β).

[0066] For this reason, when the level of the infrared light reception signal from the fire source 62 exceeds a predetermined fire level during horizontal and vertical scanning of the field of view and the scanning fire detector 50 (50-1) detects a fire, it transmits a fire detection signal including the fire source position coordinates P(αi, βi) indicating the fire source position P, which are the position coordinates of the detected fire, to the central monitoring panel 30. Then, the scanning fire detector 50 (50-1) that detected the fire stops the horizontal scanning at the fire source position P where the fire was detected but continues the vertical scanning, and continues to transmit a fire detection signal including the newly detected fire source position coordinates P(αi, βi) to the central monitoring panel 30.

[0067] The central monitoring panel 30 stores a protection area plan view 12 in which the protection area 56 is divided into a matrix of protection sections in a plan view as shown in Fig. 2, corresponding to the position coordinates P(α, β) of the protection area 56 detected by the scanning fire detector 50 (50-1). The protection area 56 is divided into a matrix because the mirror used for vertical scanning by the scanning fire detector 50 (50-1) is a rectangular mirror, and the field of view obtained at each scanning step by rotating the rectangular mirror is a rectangular field of view.

[0068] Here, each protected section is a rectangle of a predetermined length and width determined by a predetermined unit (e.g., 1°) of the vertical scanning angle α of the scanning fire detector 50 (50-1) and a predetermined unit (e.g., 1°) of the horizontal scanning angle β, e.g., a rectangle of about 1 meter in length and width, and divides the protected area into protected sections with high resolution. Note that the length and width of the protected section increases as the distance from the scanning fire detector 50 (50-1) increases, but in this embodiment, the scanning fire detector 50 (50-1) is installed at a high position that allows it to overlook the protected area 56 from above and outside, so that the expansion of the protected section due to the increase in distance from the scanning fire detector 50 (50-1) is suppressed, and the size of the protected section is shown as being approximately constant throughout the entire protected area 56.

[0069] The central monitoring panel 30 stores the unique position coordinates P(α,β) corresponding to each protected area and the water discharge position coordinates P(θ,L) which can be expressed by the horizontal rotation angle θ and the water discharge distance L of the water cannon device 10 (10-1).

[0070] In this embodiment, the water discharge distance L is divided into three stages: short distance L1, medium distance L2, and long distance L3, and therefore, at a predetermined horizontal turning angle θ, the water discharge position coordinates P(θ, L) are set as P(θ, L1), P(θ, L2), and P(θ, L3). Note that the short distance L1, medium distance L2, and long distance L3 are each set as desired, but for example, the short distance L1 is set to 30 m or less, the medium distance L2 is set to 30 to 60 m, and the long distance L3 is set to 60 to 90 m.

[0071] Furthermore, since the water discharge distance L corresponds to the water discharge pressure included in the water discharge setting information sent to the water cannon devices 10 (10-1) to 10 (10-4), the central monitoring panel 30 stores the water discharge distance L in association with the water discharge pressure, and sets water discharge pressure P1 corresponding to short distance L1, water discharge pressure P2 corresponding to medium distance L2, and water discharge pressure P3 corresponding to long distance L3.

[0072] For this reason, the central monitoring panel 30 determines the fire source compartment 64 from the protection compartments divided into a matrix of the protection area 56 shown in Figure 2 based on the fire source position coordinate P(αi, βi) from the scanning fire detector 50, reads out the water discharge position coordinate P(θ, L3), for example, as the water discharge position coordinate P(θ, L) of the water cannon device 10 (10-1) corresponding to the fire source position coordinate P(αi, βi), and transmits water discharge setting information to the water cannon control panel 16 (16-1) including the water discharge pressure P3 (target value) corresponding to the horizontal rotation angle (θ) and the water discharge distance (L3).

[0073] Here, the correspondence between the position coordinates P(α,β) and the water discharge position coordinates P(θ,L) is registered, for example, as an LUT (lookup table). Therefore, when the central monitoring panel 30 receives the position coordinates P(α,β) detected by the scanning fire detector 50 (50-1), it can read the corresponding water discharge position coordinates P(θ,L) of the water cannon device 10 (10-1) based on the LUT. Therefore, the LUT functions as a coordinate conversion unit that converts the position coordinates P(α,β) detected by the scanning fire detector 50 (50-1) into the water discharge position coordinates P(θ,L). Note that while the description has been given of a case where the scanning fire detector 50 (50-1) detects a fire and activates the water cannon device 10 (10-1), the same applies when the scanning fire detector 50 (50-2) detects a fire or when the water cannon devices 10 (10-2) to 10 (10-4) are activated.

[0074] (a2. Surveillance images and water discharge images) Next, the monitoring image and water cannon image captured by the monitoring camera will be explained. In this explanation, reference will be made to Fig. 5, which shows an overhead view of the protection area divided into protection compartments in Fig. 2 as seen from the monitoring camera, and Fig. 6, which shows a water cannon image of the protection area captured by the monitoring camera. Continuing with this explanation, an example will be given in which a fire is detected by the scanning fire detector 50 (50-1) and water is cannoned from the water cannon device 10 (10-1).

[0075] Figure 5 is a protection area overhead view 1210 showing the plan view of the ball game field shown in Figure 2 as seen from the installation position of the surveillance camera 60 (60-1) installed at an elevated position. In the protection area overhead view 1210, the protection zones divided into a matrix are arranged in a matrix as seen from diagonally above, corresponding to the installation position of the surveillance camera 60 (60-1).

[0076] Here, the protection area overhead view 1210 in Fig. 5 corresponds to a surveillance image captured by the surveillance camera 60 (60-1), and the protection areas divided into a matrix in the surveillance image are set with position coordinates P(x, y) that are, for example, the center coordinates of the protection area in the surveillance image, and the central monitoring panel 30 stores the correspondence between the position coordinates P(α, β) detected by the scanning fire detector 50 (50-1), i.e., the unique position coordinates P(α, β) set for each protection area in the protection area plan view 12 in Fig. 2, and the position coordinates P(x, y) set for each protection area in the protection area overhead view 1210 in Fig. 5. When displayed as a water discharge image on an image display device, the protection area may be displayed with lines drawn in a matrix as shown in Fig. 5 so that the protection areas can be recognized on the image.

[0077] Therefore, when the central monitoring panel 30 receives a fire detection signal including the fire source position coordinate P(αi, βi) from the scanning fire detector 50 (50-1), it acquires the fire source position coordinate P(xi, yi) corresponding to the fire source position coordinate P(αi, βi) and transmits the fire source position coordinate P(xi, yi) to the local operation console 14 (14-1) via the water cannon control panel 16 (16-1), thereby making it possible to display, for example, a fire source marker as the fire source position on the water cannon image displayed on the image display device of the local operation console 14 (14-1).

[0078] Here, the central monitoring panel 30 registers the correspondence between the position coordinate P(α,β) and the position coordinate P(x,y) as, for example, an LUT (lookup table). Therefore, when the central monitoring panel 30 receives the position coordinate P(α,β) detected by the scanning fire detector 50 (50-1), it can read out the corresponding position coordinate P(x,y) of the monitoring image based on the LUT, and the LUT functions as a coordinate conversion unit that converts the position coordinate P(α,β) detected by the scanning fire detector 50 (50-1) into the position coordinate P(x,y) of the monitoring image.

[0079] FIG. 6 shows an example of a water discharge image displayed on the image display device, showing a water discharge image 102 displayed on the image display device of the on-site operation console 14 (14-1) when a fire breaks out in the protected area 56 and the surveillance camera 60 (60-1) captures an image of fire extinguishing water being discharged from the water cannon device 10 (10-1) toward the fire source 62.

[0080] The water discharge image 102 shows the fire extinguishing water 126 being sprayed from the water cannon device 14 (14-1) onto the fire source 62, and displays a fire source marker 6210 indicating the position of the fire source 62 at the fire source position coordinate P(xi, yi) corresponding to the fire source position coordinate P(αi, βi) detected by the scanning fire detector 50 (50-1). Here, in the surveillance image captured by the surveillance camera 60 (60-1), the position of the fire source 62 may be hidden by the fire extinguishing water 126 and may be difficult to see, but in the water discharge image 102, the fire source marker 6210 makes it possible to identify the position of the fire source 62.

[0081] Therefore, the operator operating the fire hydrant device 10 (10-1) can easily confirm whether the fire extinguishing water is being sprayed correctly toward the fire source 62 from the spray area of ​​the fire extinguishing water 126 in the water spray image 102 and the position of the fire source marker 6210.If the spray area of ​​the fire extinguishing water 126 is outside the fire source marker 6210, the operator can adjust the horizontal rotation angle and spray distance of the water cannon device 10 (10-1) while watching the image display device on the local operation console 14 (14-1) so that the fire source marker 6210 is within the spray area of ​​the fire extinguishing water 126.

[0082] (a3. Water cannon device) Next, the water cannon device will be described using the water cannon device 10 (10-1) as an example. As shown in Figure 7, the water cannon device 10 (10-1) has a horizontal swivel base 68 mounted on a base 66, and the horizontal swivel base 68 rotates horizontally by being driven by a horizontal rotation motor (step motor) 70.

[0083] The fire extinguishing water pipe 24 from the pump 44 is connected to the bottom of the horizontal swivel base 68 via a stand 66, and the long-distance throw nozzle 76 is fixed at a predetermined elevation angle α0 via a curved nozzle pipe to the top of the horizontal swivel base 68. The elevation angle α0 of the long-distance throw nozzle 76 is arbitrary, but is set to, for example, 15° or 25°.

[0084] An air hose 82 from the air pipe 26 is connected to the base of the long-distance throw nozzle 76, and pressurized air is sent from the air hose 82 to the fire extinguishing water supplied to the long-distance throw nozzle 76, creating an air flow that surrounds the fire extinguishing water sprayed from the long-distance throw nozzle 76, thereby maintaining the fire extinguishing water sprayed from the long-distance throw nozzle 76 in a rod shape, ensuring the water spray distance and preventing the fire extinguishing water from scattering.

[0085] The water discharge distance (range) from the long-distance nozzle 76 is optional, but for example, if the maximum operating pressure is 0.9 MPa and the maximum water discharge rate is 3,500 liters / minute, it will be approximately 90 meters, and pressure control allows water to be discharged in a range of 0 to 90 meters. The water discharge distance in manual mode can be selected from three stages: long, medium, and short, and the water discharge distance for each stage is optional, but as mentioned above, for example, long distance is 60 to 90 meters, medium distance is 30 to 60 meters, and short distance is 30 meters or less. The long-distance nozzle 76 is used at long and medium distances, and the short-distance nozzle 78 is used at short distances.

[0086] The near-throw nozzle 78 is located below the base of the far-throw nozzle 76 and is fitted with a nozzle cover 80, which is removed by spraying water from the near-throw nozzle 78, allowing water to be sprayed toward the fire source. The nozzle cover 80 is connected to the base of the near-throw nozzle 78 by a chain or the like, so that it will not fall off even if it comes off the tip of the near-throw nozzle 78 due to water spraying.

[0087] The horizontal swivel base 68 rotates horizontally in a predetermined number of steps, for example, 0 to 1800 steps, to achieve the horizontal scanning angle set by the horizontal rotation motor 70 and encoder 72, and points the long-distance throw nozzle 76 toward the fire source. The pressure sensor 74 detects the water discharge pressure, and is used by the water cannon control panel 16 (16-1) to control the pressure by opening and closing the simultaneous release valve 18 (18-1) to maintain the set water discharge pressure (target value).

[0088] In addition, the fire extinguishing water sprayed from the long-distance nozzle 76 at a long or medium distance setting is sprayed at a fixed elevation angle α0, for example, 15° or 25°, and then sprayed so that it rains down onto the monitoring area from above, preventing the water from hitting people in the protected area directly.

[0089] [b. Functional configuration of water discharge type fire extinguishing equipment] Next, the functional configuration of the water discharge type fire extinguishing system will be described.

[0090] (b1. Functional configuration of the entire facility) First, the functional configuration of the entire facility will be explained. In this explanation, reference will be made to Fig. 8, which shows the functional configuration of the entire water cannon fire extinguishing facility. Note that Fig. 8 shows the water cannon device 10 (10-1), the on-site operation console 14 (14-1), and the water cannon control panel 16 (16-1) as representatives, and omits the water cannon devices 10 (10-2) to 10 (10-4), the on-site operation consoles 14 (14-2) to 14 (14-4), the water cannon control panels 16 (16-2) to 16 (16-4), and the fire pump room 42.

[0091] As shown in FIG. 8, the central monitoring panel 30 of the disaster prevention center 28 is composed of a computer circuit including, for example, a CPU, memory, and various input / output ports, and by executing a program by the CPU, the function of controlling the discharge of water from the water cannon device 10 (10-1) in automatic mode or manual mode is realized via the water cannon control panel 16 (16-1).

[0092] The water cannon control panel 16 (16-1) is also composed of computer circuits including, for example, a CPU, memory, and various input / output ports, and functions realized by the CPU executing programs include a horizontal rotation control unit and a water discharge pressure control unit. The horizontal rotation control unit controls the horizontal rotation motor 70 and receives detection data such as rotation position and rotation speed from an encoder 72, while the water discharge pressure control unit controls the simultaneous release valve 18 (18-1) and receives detection data such as water discharge pressure from a pressure sensor 74.

[0093] The water cannon control panel 16 (16-1) and the on-site operation console 14 (14-1) are connected by a signal line. A LAN line 140 is installed between the disaster prevention center 28 and the on-site operation console, and the central monitoring panel 30 and the water cannon control panel 16 (16-1) are connected by a known hub.

[0094] (b2. Functional configuration of the on-site operation console) Next, the functional configuration of the local operation console will be explained using the local operation console 14 (14-1) as an example. In this explanation, reference will be made to Fig. 9, which shows the functional configuration of the local operation console, and Fig. 10, which shows an LUT (lookup table) that converts position coordinates detected by a scanning fire detector into water discharge position coordinates of the water cannon device and position coordinates of the monitoring image. The local operation consoles 14 (14-2) to 14 (14-4) are similar to the local operation console 14 (14-1). The central operation console 32 is also basically similar, but is configured to perform operations and displays related to all of the water cannon devices 10 (10-1) to 10 (10-4).

[0095] As shown in FIG. 9, the local operation console 14 (14-1) includes an operation console control unit 86, an input / output circuit unit 88, an operation unit display 90 serving as an image display device, and an operation unit 92.

[0096] The operation unit display 90 includes, for example, an LCD panel, an LED panel, an organic EL panel, or the like of a predetermined screen size, and displays the operation display unit of the water cannon device 10 (10-1), a plan view of the protected area showing predetermined information, and the aforementioned water cannon image, for example, by dividing one screen into three display areas.

[0097] The input / output circuit unit 88 is wired to the water cannon control panel 16 (16-1) via a signal line, and outputs various control signals and inputs various control signals from the water cannon control panel 16 (16-1) under the instructions of the console control unit 86. The input / output circuit unit 88 also inputs data of surveillance images taken by the surveillance cameras 60 (60-1), 60 (60-2) via the central monitoring panel 30 and the water cannon control panel 16 (16-1), and can display a water cannon image based on the surveillance image on the operation unit display 90.

[0098] The console control unit 86 is composed of a computer circuit including a CPU, memory, and various input / output ports, and is provided with the functions of an operation control unit 94 and a display control unit 96 as functions realized by the CPU executing a program.

[0099] The operation control unit 94 issues instructions to the input / output circuit unit 88 based on the operation information performed on the operation unit 92, and displays an operation screen for performing water discharge operations on the water cannon device 10 (10-1) in the display area of ​​the operation display unit allocated within the screen of the operation unit display 90, and updates the operation screen based on the operations performed on the operation unit 92.

[0100] The water discharge operation of the water cannon device 10 (10-1) is performed using, for example, switches and dials provided on the operation unit 92. In this embodiment, the operation unit 92 is provided with an operation dial with multiple operation functions, and various operations required for water discharge, such as rotating the operation dial, pushing it in, and tilting it up, down, left, and right, are performed in conjunction with the display on the operation display unit of the operation unit display 90.

[0101] The display control unit 96 controls the display of a water discharge image based on the surveillance images captured by the surveillance cameras 60 (60-1) and 60 (60-2) in an allocated display area on the screen of the operation unit display 90, and in the event of a fire occurring in the protected area, for example, as shown in Figure 6, causes the operation unit display 90 to display in real time a water discharge image in which a fire source marker 6210 indicating the position of the fire source 62 detected by the scanning fire detector 50 (50-1) is displayed on the surveillance image captured by the surveillance camera 60 (60-1).

[0102] The display control unit 96 also controls the display area of ​​the operation unit display 90 to display a plan layout diagram of the area around the water cannon device 10 (10-1) in the protection area plan 12 shown in Figure 2. Here, the plan layout diagram displayed on the operation unit display 90 displays the water discharge axis from the water cannon device 10 (10-1) as well as the target water discharge axis connecting the water cannon device 10 (10-1) and the fire source location. The plan layout diagram displayed on the operation unit display 90 may be viewed from a different direction than the protection area plan 12. For example, while the water cannon device 10 (10-1) is located on the right side in the protection area plan 12 shown in Figure 2, the orientation of the plan layout diagram displayed on the operation unit display 90 may be changed so that the water cannon device 10 (10-1) is located on the lower side.

[0103] 10 receives as input a position coordinate P(α,β) indicating a protected area detected by a scanning fire detector 50 (50-1) and specified by a vertical scanning angle α and a horizontal scanning angle β, and outputs a water discharge position coordinate P(θ,L) specified by the horizontal rotation angle θ of the water cannon device 10 (10-1) for spraying water on that protected area and a water discharge distance L. For this reason, the LUT 130 uses the position coordinate P(α,β) as an address and stores the water discharge position coordinate P(θ,L) corresponding to each position coordinate P(α,β) as data.

[0104] When a fire is detected by the scanning fire detector 50 (50-1), the LUT 130 outputs the water discharge position coordinate P(θ, L) corresponding to the input fire source position coordinate P(αi, βi), thereby making it possible to display the target water discharge axis on the plan layout diagram of the operation unit display 90 based on the water discharge position coordinate P(θ, L).

[0105] 10 receives position coordinates P(α,β) indicating a protected area detected by the scanning fire detector 50 (50-1) and specified by a vertical scanning angle α and a horizontal scanning angle β, and outputs position coordinates P(x,y) in a monitoring image to be displayed on the operation unit display 90. For this reason, the LUT 132 uses the position coordinates P(α,β) as addresses and stores position coordinates P(x,y) corresponding to each position coordinate P(α,β) as data.

[0106] When a fire is detected by the scanning fire detector 50 (50-1), the LUT 132 outputs the fire source position coordinate P(xi, yi) corresponding to the input fire source position coordinate P(αi, βi), thereby making it possible to display a fire source marker 6210 on the water discharge image on the operation unit display 90 based on the fire source position coordinate P(xi, yi).

[0107] Although the LUTs 130 and 132 are collectively provided on the central monitoring panel 30 of the monitoring center 28, they may be provided individually on the local operation consoles 14 (14-1) to 14 (14-4), or on both the central monitoring panel 30 and the local operation consoles 14 (14-1) to 14 (14-4).

[0108] (b3. On-site operation console structure and display screen) Next, the structure and display screen of the local operation console will be explained using the local operation console 14 (14-1) as an example. In this explanation, reference will be made to Fig. 11, which shows the appearance of the local operation console, Fig. 12, which shows the display screen of the operation unit display during rotation operation, and Fig. 13, which shows the display screen of the operation unit display during water spraying. Note that Fig. 11(A) shows the front view of the local operation console with the door open, and Fig. 11(B) shows the side view. The local operation consoles 14 (14-2) to 14 (14-4) are also similar to the local operation console 14 (14-1). The central operation console 32 is also basically similar, but is configured to perform operations and displays related to all of the water cannon devices 10 (10-1) to 10 (10-4).

[0109] The shape of the on-site operation console 14 (14-1) is arbitrary, but for example, as shown in FIG. 11, the upper front of a box-shaped housing 98 is provided with a door 9810 that opens in both directions via a hinge 98a, and the operation unit display 90 and operation unit 92 are arranged at the opening position opened by the door 9810.

[0110] As mentioned above, the screen of the operation unit display 90 is divided into three display areas, and as shown in Fig. 11, for example, a floor plan layout diagram 100, a water discharge image 102, and an operation display unit 104 are allocated to these areas. The operation unit 92 also has an operation dial 106 equipped with a multi-operation function. Note that the operation unit 92 is not limited to having only the operation dial 106, and may also have other components necessary for operating the water cannon device, such as a switch for selecting the water discharge distance, arranged thereon.

[0111] The local operation console 14 (14-1) is activated when it detects the opening of the door 9810 using a door detection switch or the like, and displays an initial image of the operation menu on the operation display unit 104. The operation menu on the operation display unit 104 can be scrolled by, for example, rotating the operation dial 106; turning the operation dial 106 to the right scrolls the operation menu down, turning it to the left scrolls the operation menu up, and pressing the dial to confirm.

[0112] First, when a fire breaks out and the operator operates the water cannon 10 (10-1) on the local operation console 14 (14-1), the operator rotates the operation dial 106 to display the "rotation operation screen" as an operation menu on the operation display unit 104, as shown in FIG. 12.

[0113] On this rotation operation screen, an automatic button 116 and a manual button 118 are displayed corresponding to the rotation mode tag 114. For example, when the manual button 118 is selected by tilting the operation dial 106 and then pressed down on the operation dial 106, the local operation console 14 (14-1) acquires the operating authority for the water cannon device 10 (10-1) and the central monitoring panel 30 sets the device to manual mode.

[0114] The rotation operation screen also displays a rotation meter 120, with a rotation pointer 122 indicating the current rotation position of the water discharge nozzle of the water cannon device 10 (10-1), and a fire source marker 124 indicating the fire source position is displayed at the horizontal rotation angle θ of the water discharge position coordinate P(θ,L) corresponding to the fire source position coordinate P(αi,βi). Therefore, in Figure 12, for example, the operator can turn the operation dial 106 counterclockwise to rotate the water discharge nozzle of the water cannon device 10 (10-1) counterclockwise and align the rotation pointer 122 with the fire source marker 124, thereby correctly pointing the water discharge nozzle at the fire source. The value "900" shown on the rotation pointer 122 of the rotation meter 120 in Figure 12 indicates the number of horizontal scanning steps, with the left limit being "0" and the right limit being "1800."

[0115] At this time, the water discharge axis 108 in the current direction of the water discharge nozzle and the water discharge area 110 when fire-extinguishing water is discharged are displayed in the plan layout diagram 100 on the upper left side of the screen 9010. Here, the distance from the water discharge gun device 10 (10-1) to point Q is the water discharge distance set in the water discharge gun device 10 (10-1), and the length of the water discharge axis 108 and the water discharge area 110 displayed change depending on the water discharge distance selected.

[0116] Furthermore, the plan layout diagram 100 displays a target water-discharge axis 112 that connects the water-discharge gun device 10 (10-1) and the fire source position P. Therefore, when the operator turns the water-discharge nozzle using the operation dial 106, the water-discharge axis 108 moves, and by turning the water-discharge axis 108 to a position where it overlaps with the target water-discharge axis 112, the water-discharge nozzle of the water-discharge gun device 10 (10-1) can be turned to point toward the fire source.

[0117] In addition, the water discharge image 102 on the upper right side of the display screen 9010 displays a surveillance image (video) of the protected area 56 captured by, for example, a surveillance camera 60 (60-1) in real time, and in the water discharge image 102, a fire source marker 6210 is displayed at the screen position of the position coordinates P(xi, yi) corresponding to the fire source position coordinates P(αi, βi) detected by the scanning fire detector 50 (50-1), and the position of the fire source 62 present in the protected area 56 is indicated by the fire source marker 6210.

[0118] After the rotation operation of the water cannon device 10 (10-1) is completed on the screen 9010 of Fig. 12, the operator scrolls the operation menu of the operation display unit 104 by, for example, rotating the operation dial 106 to display the water cannon start screen, and then selects and presses the start button by tilting it, causing the water cannon device 10 (10-1) to start discharging extinguishing water. Here, Fig. 13 shows an example of the screen 9010 of the operation unit display 90 when the rotation operation is completed and the water cannon device 10 (10-1) is discharging extinguishing water.

[0119] Next, the operator returns the operation display unit 104 to the rotation operation screen again to enable adjustment of the water discharge direction of the water cannon device 10 (10-1) while the water cannon device 10 (10-1) is discharging extinguishing water. At this time, the water cannon image 102 displays in real time the state in which the fire extinguishing water is being discharged from the water cannon device 10 (10-1) toward the fire source 62, allowing the operator to clearly confirm that the fire extinguishing water is being discharged toward the fire source 62. Depending on the situation, it may be difficult to confirm the fire source 62 in the water cannon image 102, but because a fire source marker 6210 is displayed on the fire source 62, the operator can clearly confirm from the fire source marker 6210 that the fire extinguishing water is being correctly discharged toward the fire source 62.

[0120] Here, the operator can check the need to adjust the water discharge direction on either the floor plan layout diagram 100, the water discharge image 102, or the operation display unit 104, and if it becomes necessary to adjust the water discharge direction, he or she will operate the operation dial 106 to adjust the water discharge direction so as to eliminate any deviation in the water discharge position relative to the fire source position.

[0121] [e. Modifications of the present invention] Modifications of the water discharge type fire extinguishing system according to the present invention will now be described. In addition to the above-described embodiment, the water discharge type fire extinguishing system according to the present invention includes the following modifications.

[0122] (Water cannon device) In the above embodiment, the water cannon device is a large-scale water cannon device equipped with a long-throw nozzle that has a maximum water discharge distance of approximately 90 m, but the water discharge distance is arbitrary and includes a medium-scale water cannon device equipped with a medium-throw nozzle that has a maximum water discharge distance of approximately 70 m, or a small-scale water cannon device equipped with a short-throw nozzle that has a maximum water discharge distance of approximately 40 m.

[0123] (Change of elevation angle) In the above embodiment, the horizontal rotation angle of the water cannon device is changeable and the elevation angle (vertical rotation angle) is fixed, but the elevation angle (vertical rotation angle) may be changeable as needed. A structure for changing the elevation angle of this water cannon device can be, for example, the structure described in JP 2017-221478 A.

[0124] (Operation display) In the above embodiment, the screen of the operation unit display is divided into areas to display the operation display unit, floor plan layout, and water discharge image on one screen, but the display may be switched to display the operation display unit, floor plan layout, and water discharge image. In this case, each image can be displayed larger, making it easier to check the displayed content and operate it.

[0125] (Operation dial) In the above embodiment, an operation dial with multiple operation functions is provided as the operation unit of the on-site operation console, but this is not limited to this. A touch panel may be provided on the operation unit display so that the water cannon device can be operated by operating the screen, or the operation unit may combine screen operation with physical switches and indicator lights.

[0126] (others) Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited to the numerical values ​​shown in the above embodiments. [Explanation of symbols]

[0127] 10(10-1)~10(10-4): Water cannon device 12: Protection area plan 1210:Protection area overhead view 14(14-1)~14(14-4): On-site operation console 16(16-1)~16(16-4): Water cannon control panel 18(18-1)~18(18-4): Simultaneous opening valve 20(20-1)~20(20-4): Check valve 22(22-1)~22(22-4): Air control valve 24: Fire extinguishing water piping 25: Compressor 26: Air piping 28: Disaster Prevention Center 30: Central monitoring board 32: Central control console 34: Monitor device 36: Printer 40: Automatic fire alarm receiver 42: Fire pump room 44: Pump 46: Pump control panel 48: Water source tank 50(50-1)~50(50-2): Scanning fire detector 5010: Field of view axis 54: Smoke detector 56:Protection area 60(60-1)~60(60-2):Surveillance camera 62: Fire source 6210: Fire source marker 64: Fire source compartment 66: Stand 68: Horizontal swivel 70: Horizontal rotation motor 72: Encoder 74: Pressure sensor 76: Long-distance Rizzle 78: Close-throw nozzle 80: Nozzle cover 82: Air hose 86: Control panel control unit 88: Input / output circuit section 90: Operation display 9010: Screen 92:Operation unit 94: Operation control section 96: Display control unit 98: Cabinet 9810: Door 100: Floor plan 102: Water discharge image 104: Operation display section 106: Operation dial 108: Water discharge shaft 110: Water discharge area 112: Target water discharge axis 114: Rotation mode tag 116: Automatic button 118: Manual button 120: Turning meter 122: Turning pointer 124: Fire source marker 126: Fire extinguishing water 130,132:LUT 140: LAN line

Claims

1. a water discharge unit that discharges fire extinguishing water into a predetermined protection area; a fire detector for detecting a fire occurring in the protected area as well as a fire source position indicating the location of the fire occurring in the protected area; an on-site operation unit that directs the water discharge unit to a fire source position detected by the fire detector and discharges the fire extinguishing water; A water discharge type fire extinguishing system comprising: Furthermore, an imaging device that images the protection area; an image display device provided at a position where it can be seen when operating the local operation unit; a display control unit that, when a fire occurs in the protection area, causes the image display device to display a water discharge image showing the location of a fire source detected by the fire detector on the image captured by the imaging device; A water-discharge type fire extinguishing system characterized by the following:

2. The water discharge type fire extinguishing system according to claim 1, The display control unit is characterized in that, in addition to the water discharge image, the image display device displays a plan view of the protected area, which shows the water discharge unit, the fire source position, and a water discharge axis representing the water discharge direction and water discharge distance of the water discharge unit.

3. The water discharge type fire extinguishing system according to claim 2, The water discharge type fire extinguishing equipment is characterized in that the plan layout diagram displays, in addition to the water discharge axis, a target water discharge axis connecting the water discharge unit and the fire source position.

4. The water discharge type fire extinguishing system according to claim 2, The water-discharge type fire extinguishing equipment is characterized in that the display control unit displays the water-discharge image and the floor plan layout diagram side by side or in a switchable manner on the image display device.

5. The water discharge type fire extinguishing system according to claim 1, The local operation unit includes: a water discharge direction adjustment operation unit for adjusting the water discharge direction of the water discharge unit; a water discharge distance adjustment operation unit for adjusting the water discharge distance to the fire source position; A water-discharge type fire extinguishing system characterized by the following:

6. The water discharge type fire extinguishing system according to claim 1, The imaging device is installed in a position where an imaging axis forms a predetermined angle with respect to the water discharge axis of the water discharge unit when the protected area is viewed in a plan view, and where an image of the water discharged from the water discharge unit can be captured from the side.

Images