Fire extinguishing system

Abstract

To provide a fire extinguishing system that assists in ejection of fire extinguishing water targeting at a fire source.SOLUTION: A fire extinguishing system (100) includes: a temperature distribution imaging unit (3) which is provided inside a building and captures a temperature distribution image which visualizes temperature distribution; and a fire extinguishing device (2) for extinguishing fire through manual operations. The fire extinguishing device (2) includes: a nozzle part (1) for ejecting fire extinguishing water; and a display device (10) for displaying a temperature distribution image captured by the temperature distribution imaging unit (3).SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a fire suppression system that assists manual fire suppression. [Background technology]

[0002] When a fire breaks out inside a structure such as a tunnel or a facility building, manual fire extinguishing operations are carried out using fire extinguishing devices installed in various locations within the structure.

[0003] The following fire extinguishing device is available for manually spraying water at the source of a fire during firefighting operations (see, for example, Patent Document 1). The fire extinguishing device disclosed in Patent Document 1 is equipped with a laser light source that irradiates in the same direction as the water discharge nozzle, and the water is discharged after irradiating the laser light and visually checking whether it has reached the source of the fire. This allows water to be sprayed at the source of the fire. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-291923 Summary of the Invention [Problem to be solved by the invention]

[0005] When a fire breaks out inside a structure, smoke can obscure visibility, making it difficult to manually extinguish the fire and spray water at the source.

[0006] When using the fire extinguishing device of Patent Document 1, if the source of the fire can be seen, it is possible to spray water aimed at the fire source by irradiating the fire source with a laser beam. On the other hand, if the fire source cannot be seen due to the presence of smoke, it becomes difficult to determine in which direction to irradiate the laser beam, which makes it difficult to spray water aimed at the fire source.

[0007] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a fire extinguishing system that assists in discharging fire extinguishing water aimed at the fire source. [Means for solving the problem]

[0008] The fire extinguishing system according to the present disclosure comprises a temperature distribution imaging unit installed inside a structure that captures a temperature distribution image, which is an image that visualizes the temperature distribution, and a fire extinguishing device that performs fire extinguishing by manual operation, and the fire extinguishing device comprises a nozzle unit that discharges extinguishing water and a display device that displays the temperature distribution image captured by the temperature distribution imaging unit. [Effects of the Invention]

[0009] The present disclosure provides a fire suppression system that assists in targeting the release of fire suppression water at the source of a fire. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a schematic diagram illustrating a configuration example of a fire extinguishing system and a fire extinguishing state according to a first embodiment of the present disclosure. [Figure 2] FIG. 2 is a side view showing the appearance of the nozzle portion shown in FIG. [Figure 3] FIG. 1 is a block diagram showing the configuration of a fire extinguishing system according to a first embodiment of the present disclosure, and is a diagram showing a communication path leading mainly to displaying a temperature distribution image captured by an infrared camera on a display device. [Figure 4] FIG. 10 is a block diagram showing the configuration of a fire extinguishing system according to a second embodiment of the present disclosure. [Figure 5] 5 is a flowchart showing an example of the operation of the display device shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, preferred embodiments of the fire extinguishing system of the present disclosure will be described with reference to the drawings. The fire extinguishing system disclosed herein has a technical feature that, when a fire occurs inside a structure such as a tunnel or facility building, it notifies firefighters of the location of the fire source using images from an infrared camera installed at the top of the structure.

[0012] Specifically, a display device is provided on the nozzle for spraying water, and an image from an infrared camera is displayed on the display device to notify firefighters of the location of the fire source.

[0013] The images captured by the infrared camera visualize the temperature distribution. Therefore, firefighters can identify the location of the fire source by identifying high-temperature areas from the images. Therefore, even if the structure is filled with smoke and visibility is obstructed, firefighters can adjust the direction of the water spray while checking the image displayed on the display device, and can target the fire source with the water.

[0014] Embodiment 1 FIG. 1 is a schematic diagram illustrating a configuration example and a fire extinguishing state of a fire extinguishing system according to the first embodiment of the present disclosure, with FIG. 1(A) showing a side view and FIG. 1(B) showing a perspective view.

[0015] The fire extinguishing system 100 shown in FIG. 1 is a system for extinguishing a fire when it breaks out inside a tunnel 200, which is a structure.

[0016] As shown in FIG. 1(A), the fire extinguishing system 100 includes a fire hydrant 2 as a fire extinguishing device, and an infrared camera 3 as a temperature distribution imaging unit.

[0017] The fire hydrant 2 is configured by storing a hose 2A with a nozzle 1 at the tip in a box-shaped container. A person who discovers a fire manually opens the box-shaped container, removes the entire hose 2A, and grasps the nozzle 1 to perform the required water discharge operation. This causes fire extinguishing water to be discharged from the nozzle 1.

[0018] The fire hydrants 2 are installed at intervals of approximately 50 m along the entire length of the tunnel 200. The total length of the hose 2A is set to approximately 20 to 30 m so that no matter where a fire breaks out in the tunnel 200, the fire hydrants 2 can be used to extinguish the fire.

[0019] The infrared cameras 3 are installed at the top of the arched interior of the tunnel 200. The infrared cameras 3 are also installed at regular intervals along the entire length of the tunnel 200 so as to prevent blind spots.

[0020] The infrared camera 3 is provided so as to capture images from above downward, and captures an image of the XY plane that visualizes the temperature distribution. The image captured by this infrared camera 3 is called a temperature distribution image.

[0021] The infrared camera 3 is installed in a position such that, in the event of a fire, both the source of the fire and the firefighters can be captured within the frame of one camera.

[0022] As shown in FIG. 1(B), various control panels such as a disaster prevention receiving panel 4 and a pump control panel 5 are provided in an electrical room 60 provided near the tunnel 200.

[0023] Here, the disaster prevention receiving panel 4 is a control panel that monitors and controls the emergency equipment installed in the tunnel 200 in an integrated manner.

[0024] The disaster prevention receiving panel 4 also transmits and receives signals to and from other externally installed equipment. In the first embodiment, the disaster prevention receiving panel 4 functions as an image control unit that relays and transmits the temperature distribution image to a cloud server 50, which will be described later.

[0025] The pump control panel 5 controls the water supply by controlling a fire pump, an automatic water supply device, and an electric valve, which are not shown.

[0026] FIG. 2 is a side view showing the appearance of the nozzle portion 1 shown in FIG.

[0027] Nozzle portion 1 is a fire hydrant nozzle having a water outlet 12 from which fire extinguishing water is discharged and a grip portion 13 that is held by a fire extinguishing worker. In addition, in the first embodiment, a display device 10 having a display surface 11 is provided on the upper surface of nozzle portion 1.

[0028] The display device 10 displays in real time a temperature distribution image captured by the infrared camera 3 installed at the position closest to the water discharge position. Therefore, firefighters can confirm the location of the fire source, which is a high-temperature area, by visually checking the temperature distribution image displayed on the display device 10. A primary battery, a secondary battery, or the like can be used as the power source for the display device 10. Note that an information terminal such as a tablet terminal or a smartphone may also be used as the display device 10.

[0029] In the first embodiment, the display device 10 is configured to be provided on the upper surface of the nozzle portion 1, but it may also be configured to be provided on the fire hydrant 2. In this case, the power source for the display device 10 can be a primary battery, a secondary battery, or a commercial power source connected to the fire extinguisher.

[0030] The extinguishing water being sprayed is also sensed at the same time and displayed on the temperature distribution video, allowing firefighters to check the origin of the water spray, its direction on the XY plane, and the point where the water has reached.

[0031] The temperature distribution image displayed on the display surface 11 is captured by an infrared camera 3 installed at a fixed point, and is displayed as an image in a fixed direction regardless of the orientation of the nozzle part 1. In contrast, the water discharge trajectory displayed within the temperature distribution image is displayed in a different direction depending on the orientation of the nozzle part.

[0032] Therefore, by visually checking the water discharge trajectory caused by the fire extinguishing work performed by the fire extinguishing worker in the temperature distribution image, the fire extinguishing worker can easily confirm the relative relationship between the high temperature area and the water discharge direction, and can easily grasp the appropriate direction of the nozzle part 1 for discharging water to the high temperature area.

[0033] By visually checking the contents displayed on the display device 10 in this way, the firefighter can adjust the water discharge direction, i.e., the elevation angle and horizontal angle of the nozzle unit 1, and perform firefighting operations while checking whether the fire extinguishing water has reached the fire source. Here, the elevation angle refers to the angle in the height direction (Z-axis direction) relative to the XY plane, and includes the depression angle. Furthermore, the horizontal angle refers to the rotation angle in the XY plane centered on the firefighter.

[0034] FIG. 3 is a block diagram showing the configuration of the fire extinguishing system 100, and is a diagram mainly showing the communication path up to when the temperature distribution image captured by the infrared camera 3 is displayed on the display device 10. As shown in FIG.

[0035] In FIG. 3, the display device 10 includes a communication unit 101, a display unit 102, and a control unit 103.

[0036] The communication unit 101 communicates with the cloud server 50 via the Internet 300. The display unit 102 displays an image on the display surface 11. The control unit 103 controls each of the components inside the display device 10 in an integrated manner.

[0037] In the first embodiment, when a fire occurs, the infrared camera 3 transmits the captured temperature distribution video in real time to the disaster prevention receiving panel 4. Upon receiving the temperature distribution video, the disaster prevention receiving panel 4 relays the temperature distribution video to an external server, the cloud server 50, via the Internet 300. At this time, the disaster prevention receiving panel 4 also transmits to the cloud server 50 the identification information of the infrared camera 3 capturing the temperature distribution video.

[0038] The cloud server 50 stores the temperature distribution video for recording and transmits it to the display device 10 via the Internet 300. At this time, the cloud server 50 controls the transmission destination so that the video is transmitted correctly to the display device 10 corresponding to the received identification information of the infrared camera 3.

[0039] The display device 10 receives the temperature distribution image transmitted by the cloud server 50 and displays the received temperature distribution image. At this time, the control unit 103 controls the communication unit 101 and the display unit 102 to cause the display unit 102 to display the temperature distribution image received by the communication unit 101.

[0040] With this configuration, the display device 10 can display in real time a temperature distribution image captured from above by the infrared camera 3. Furthermore, the cloud server 50 can accumulate and store the temperature distribution image.

[0041] According to this aspect of the first embodiment, it is possible to obtain the fire extinguishing system 100 that assists in discharging fire extinguishing water aimed at the fire source.

[0042] Embodiment 2 In the second embodiment, a further aspect of the fire extinguishing system 100 that can guide the direction of the nozzle portion 1 will be described.

[0043] FIG. 4 is a block diagram showing a configuration of a fire extinguishing system 100 according to the second embodiment of the present disclosure.

[0044] Display device 10 in embodiment 2 further includes water pressure gauge 104 and goniometer 105. Water pressure gauge 104 measures the water pressure of the fire-extinguishing water discharged from water outlet 12. Goniometer 105 measures the elevation angle at which nozzle unit 1 is currently facing.

[0045] The display device 10 in the second embodiment calculates the optimum water discharge direction (elevation angle, horizontal angle) of the nozzle unit 1 based on the current water pressure during water discharge and the temperature distribution image captured by the infrared camera 3. Then, the display device 10 displays a guidance image that guides the tip of the nozzle unit 1 to face in the calculated water discharge direction.

[0046] Fig. 5 is a flowchart showing an example of the operation of the display device 10 shown in Fig. 4. The flowchart in Fig. 5 is repeatedly executed.

[0047] In step S101, the control unit 103 acquires a temperature distribution image via the communication unit 101. The temperature distribution image includes both the fire source and the firefighter. Therefore, in step S102, the control unit 103 calculates the distance from the firefighter to the fire source on the XY plane using the temperature distribution image.

[0048] In step S103, the control unit 103 calculates the optimum elevation angle for reaching the fire source with the current water pressure. The elevation angle calculated here is referred to as the optimum elevation angle.

[0049] In step S104, the control unit 103 acquires the actual measurement value of the elevation angle of the nozzle unit 1 from the goniometer 105. Then, the control unit 103 calculates the difference between the optimum elevation angle and the actual measurement value of the elevation angle, and determines whether water should be discharged upward or downward from the current water discharge direction based on the difference.

[0050] In step S105, the control unit 103 obtains the direction of the fire source on the XY plane based on the position of the fire extinguishing worker from the temperature distribution image. Then, the control unit 103 obtains the current water discharge direction displayed in the temperature distribution image. Then, the control unit 103 obtains the difference between the direction of the fire source and the water discharge direction, and based on the difference, determines whether to rotate to the right or left from the current water discharge direction.

[0051] In step S106, the control unit 103 creates a guidance image based on the direction determined in steps S104 and S105, and displays this guidance image on the display unit 102. The control unit 103 creates an arrow image indicating the direction in which water should be discharged (up, down, left, and right) as the guidance image, and displays this on the display unit 102. Alternatively, the control unit 103 may display text such as "upward," "downward," "leftward," "rightward," or "maintain status quo" as the guidance image. Alternatively, if the display device 10 is provided with a speaker, guidance may be provided by voice via the speaker.

[0052] After step S106, the control unit 103 immediately returns to step S101 to continue the process, thereby making it possible to display a guidance image in accordance with the current water discharge direction in real time.

[0053] The firefighter can adjust the direction of the nozzle part 1 according to the displayed guidance image, thereby extinguishing the fire by targeting the source of the fire.

[0054] The display device 10 may display only the guidance image, or may display the guidance image together with the temperature distribution image.

[0055] 5 may be performed by the cloud server 50. In this case, the cloud server 50 acquires the actual measured values ​​of the water pressure gauge 104 and the goniometer 105 from the display device 10, and transmits a guidance image to the display device 10 as a calculation result.

[0056] Furthermore, if the water pressure at which water is discharged from the nozzle unit 1 is determined by design, the design value may be used in the calculation. In this case, the configuration may not require the water pressure gauge 104. Furthermore, the goniometer 105 may be one that can measure not only the elevation angle but also the horizontal angle to determine the turning direction.

[0057] In the first and second embodiments, the tunnel 200, which is one of the structures, has been described as an example, but the present invention can also be applied to other structures, for example, facility buildings such as waste incineration plants.

[0058] Furthermore, in the first and second embodiments, it is assumed that one infrared camera 3 captures images that include both the fire source and the firefighters, but depending on the installation location of the infrared camera 3, they may not fit within the frame. In this case, it is also possible to use temperature distribution images captured by adjacent infrared cameras 3, and to use images that expand the area by stitching them together. In this case, it is assumed that the cloud server 50 performs the stitching process, but this may also be performed by the disaster prevention receiving panel 4 or the display device 10.

[0059] Furthermore, the display device 10 may be provided so as to be detachable from the nozzle portion 1. For example, the display device 10 may be attached to the hydrant 2 before use, and may be detached from the hydrant 2 and attached to the nozzle portion 1 when in use. As an example, a magnet may be provided on the surface of the display device 10 opposite the display surface 11, making it detachable by magnetic force.

[0060] In addition, in the first and second embodiments, the temperature distribution image captured by the infrared camera 3 is displayed on the display device 10 via the disaster prevention receiving panel 4 and the cloud server 50. Alternatively, the temperature distribution image may be transmitted directly from the infrared camera 3 to the display device 10. In this case, each infrared camera 3 transmits the image to the display device 10 provided on the nearest fire hydrant 2. Alternatively, each infrared camera 3 may simultaneously transmit the image to the display device 10 provided on the fire hydrant 2 within a 50 m range in front and behind it, in addition to the nearest fire hydrant 2.

[0061] The features of such a fire extinguishing system 100 can be summarized as follows, and the system has the following configuration and can achieve the following effects.

[0062] The fire extinguishing system 100 includes an infrared camera 3 installed inside a structure that captures a temperature distribution image, which is an image that visualizes the temperature distribution, and a fire hydrant 2 that is manually operated to extinguish a fire.

[0063] The fire hydrant 2 includes a nozzle unit 1 that discharges fire extinguishing water, and a display device 10 that displays the temperature distribution image captured by the temperature distribution imaging unit.

[0064] This provides a fire suppression system 100 that assists in targeting the fire source with fire suppression water.

[0065] Furthermore, when a fire breaks out inside a structure, the infrared camera 3 is installed in a position where it can capture an image of the temperature distribution over the fire scene from above. As an example, as illustrated in the first and second embodiments, the infrared camera 3 is installed at the top of the interior of the structure so as to capture an image in a downward direction. This allows firefighters to perform firefighting work using the temperature distribution image over the fire scene from above, and the location of the fire source can be easily determined through the image.

[0066] In addition, the infrared camera 3 simultaneously captures the high-temperature area and the extinguishing water being sprayed from the nozzle 1 as a temperature distribution image, and the temperature distribution image during water spraying can be displayed in real time on the display device 10. This allows the firefighter to easily visually recognize the relative relationship between the water spray trajectory caused by his or her own firefighting work and the high-temperature area, easily grasp the appropriate direction for the nozzle 1 to spray water on the high-temperature area, and quickly carry out the firefighting work on the high-temperature area.

[0067] Furthermore, the display device 10 is provided so as to be detachable from the nozzle portion 1. This allows the display device 10 to be used separately from the nozzle portion 1, and it is also possible to attach the display device 10 to a position different from the fixed position of the nozzle portion 1. Furthermore, the display device 10 may be configured to be detachable from the fire hydrant 2. If a secondary battery is used as the power source for the display device, the secondary battery may be configured to be charged via a commercial power source connected to the fire extinguisher when attached to the fire extinguisher.

[0068] The fire extinguishing system 100 also includes a disaster prevention receiving panel 4 that relays and transmits the temperature distribution image captured by the infrared camera 3 to the outside, and a cloud server 50 that receives the temperature distribution image transmitted by the disaster prevention receiving panel 4.

[0069] The cloud server 50 transmits the received temperature distribution image to the display device 10, and the display device 10 receives the temperature distribution image transmitted by the cloud server 50 and displays the received temperature distribution image.

[0070] This allows the display device 10 to acquire a temperature distribution image even if data cannot be directly transmitted and received between the infrared camera 3 and the display device 10. Furthermore, the cloud server 50 can also store the temperature distribution image for recording.

[0071] The display device 10 displays a guidance image created based on the temperature distribution image to guide the direction of the nozzle tip. Therefore, by adjusting the direction of the nozzle part 1 according to the content displayed on the display device 10, water can be sprayed more accurately at the source of the fire. [Explanation of symbols]

[0072] 1 Nozzle section, 2 Fire hydrant (fire extinguishing device), 2A hose, 3 Infrared camera (temperature distribution imaging section), 4 Disaster prevention receiving panel (image control section), 10 Display device, 11 Display surface, 12 Water outlet, 13 Grip section, 50 Cloud server (external server), 100 Fire extinguishing system, 101 Communication section, 102 Display section, 103 Control section, 104 Water pressure gauge, 105 Goniometer, 200 Tunnel, 300 Internet.

Claims

1. a temperature distribution imaging unit that is installed inside the structure and captures a temperature distribution image that visualizes the temperature distribution; a manually operated fire extinguishing device; Equipped with The fire extinguishing device is a nozzle portion for discharging fire extinguishing water; a display device that displays the temperature distribution image captured by the temperature distribution imaging unit; and A fire extinguishing system comprising:

2. The temperature distribution imaging unit simultaneously images the fire extinguishing water being sprayed, The display device displays a temperature distribution image captured by the temperature distribution imaging unit during water discharge, making it possible to visually confirm the relative relationship between the high temperature area and the water discharge trajectory. The fire suppression system of claim 1 .

3. the temperature distribution imaging unit is provided at a position where it can capture an image of a temperature distribution image overlooking a fire scene from above when a fire breaks out inside the structure. The fire suppression system of claim 1 .

4. The display device is detachably provided on the nozzle portion. The fire suppression system of claim 1 .

5. an image control unit that relays and transmits the temperature distribution image captured by the temperature distribution image capturing unit to an external device; an external server that receives the temperature distribution image transmitted by the image control unit; Equipped with the external server transmits the received temperature distribution image to the display device; the display device receives the temperature distribution image transmitted by the external server and displays the received temperature distribution image. The fire suppression system of claim 1 .

6. the display device further displays a guidance image for guiding the direction of the nozzle tip, the guidance image being created based on the temperature distribution image. A fire extinguishing system according to any one of claims 1 to 5.

7. a temperature distribution imaging unit that is installed inside the structure and captures a temperature distribution image that visualizes the temperature distribution; a manually operated fire extinguishing device; Equipped with The fire extinguishing device is a nozzle portion for discharging fire extinguishing water; a display device that displays a guidance image for guiding the direction of the nozzle tip, the guidance image being created based on the temperature distribution image; and A fire extinguishing system comprising:

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