JPH08280834A - Method for guiding fire-extinguishing shell - Google Patents

Abstract

PURPOSE: To make the fire fighting safely from a remote point without influence of a rising air stream, smokes, and flames generated by the fire. CONSTITUTION: A helicopter 1 is put hovering in a safe place near the point 3 where a fire is generated, and a camera for maneuvering 2 is set facing the fire point 3. A fire extinguishing shell is thrown in acceleration so that it falls freely in a division s1. In the division s2, the shell is guided into the view field 4 of the camera 2 according to the predetermined program. In the division s3, wired induction of the shell is made through a guide wire 7 while the operator watches the image photographed by the camera 2, and the shell is guided so as to hit the target point.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for guiding a fire extinguishing munition used for extinguishing a fire to a fire occurrence site with high accuracy.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Patent Application Laid-Open No. 48-647.
99 and JP-A-49-9092 disclose a method of extinguishing a fire using a fire extinguisher. In these prior arts, a fire extinguisher filled with a fire extinguisher is fired into a fire occurrence site in place of a so-called rocket explosive to extinguish a fire. By using such a fire extinguisher, a quick fire extinguishing activity can be performed without approaching a dangerous fire spot, and an effective fire extinguishing activity can also be performed for a fire in a high place such as a high-rise building. Furthermore, it is also possible to select a fire extinguisher suitable for the type of fire.

[0003]

As described in the prior art, it is very difficult to hit a fire occurrence site only by firing a fire-extinguishing rocket in a rocket-type manner. In particular,
If the fire extinguisher is to be launched from a safe position as far away from the fire site as possible, the accuracy of the fire extinguisher will be further reduced. Also, if the amount of fire extinguishing agent is increased, the shape and weight of the fire extinguisher will increase, and it is necessary to aim the launching device in consideration of the effect of air resistance and the drop due to gravity, and at the time of initial fire extinguishing urgent It will be very difficult to hit the fire site, the launch equipment will be large, and mobility will be sacrificed.

[0004] If a fire extinguishing munition is dropped from an aircraft such as a helicopter, a large-scale launching device that strikes against the gravity becomes unnecessary, and it is possible to quickly approach the fire occurrence site, thereby effectively extinguishing the fire. The activity is expected to be possible. However, it is very difficult to drop a fire extinguisher while flying at high speed to hit the fire site.If the fire extinguisher misses the surroundings without hitting it, the fire extinguisher falling from the sky may damage the surroundings. I could give it. Also, if the helicopter drops a fire extinguisher while hovering over the fire site, the accuracy of hitting the fire site will be improved, but the visibility will be very poor or rising due to the smoke over the fire site. There is a possibility that airflow or the like may occur, making it extremely difficult to operate the helicopter. In addition, when a fire occurs on the floor in the middle of the skyscraper, rather than on the roof or the top floor, effective fire extinguishing activities cannot be performed simply by dropping fire extinguishers from above.

[0005] A prior art in which a helicopter is used to extinguish a fire in a middle floor of a high-rise building is disclosed in, for example, Japanese Patent Laid-Open No. 5-270.
However, it is very difficult to control the helicopter because the helicopter must be close to the fire site as far as the water can reach, as disclosed in Japanese Patent Application Laid-Open No. 496 and JP-A-6-144381.

An object of the present invention is to provide a fire extinguisher guiding method capable of dropping a fire extinguisher from an aircraft at a safe position away from the fire occurrence site and accurately guiding the fire extinguisher to the fire occurrence site. Is.

[0007]

SUMMARY OF THE INVENTION The present invention is a method for ejecting a fire extinguisher equipped with a steering wing from an aircraft and guiding the fire extinguisher to a fire site, the step of accelerating the fire extinguisher by natural fall, According to a set program, a method of guiding a fire extinguisher comprising: a step of guiding the fire extinguisher into a field of view for controlling from the aircraft; and a step of guiding the fire extinguisher from the aircraft to a fire scene. is there. Further, the present invention is characterized in that a helicopter is used as an aircraft and a fire extinguisher is guided to a fire site by an image of a photographing device mounted on the helicopter. Further, the present invention is characterized in that the fire extinguisher is guided while connecting the fire extinguisher and the aircraft with a signal line for guidance.

[0008]

According to the present invention, a fire extinguisher with a steering wing is discharged from an aircraft and guided to a fire site. Accelerate fire extinguishers by freefall until they reach the speed required for guidance.
The accelerated fire ammunition reaches a speed at which the steering wings effectively function and is guided from the aircraft into the field of view for control according to a preset program. The fire-extinguishing bomb guided into the field of view is further guided to the fire site, and can accurately hit the fire occurrence site.

Further, according to the present invention, a helicopter is used as an aircraft, and a fire extinguisher is guided to a fire site by an image of a photographing device mounted on the helicopter. Since the helicopter is used, it is possible to quickly move to a position facing the fire occurrence site and hover and stop at a safe position away from the fire occurrence site. When guiding the fire extinguisher to the fire outbreak site, the image of the shooting device is used, so it is possible to effectively enlarge it by appropriately expanding it according to the distance between the fire extinguisher and the fire outbreak site. .

Further, according to the present invention, since the fire extinguishing munition is guided while connecting the fire extinguishing munition and the aircraft with the signal line for guidance, reliable guidance is possible by wired induction. Especially in urban areas, various radio waves are mixed and it is very difficult to guide wirelessly, but the guidance can surely guide the fire extinguisher to the fire site and hit it.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a schematic structure of an embodiment of the present invention. A helicopter 1 that is an aircraft includes a control camera 2. When the control camera 2 is pointed at the fire occurrence point 3,
The fire occurrence point 3 can be captured in the field of view 4. The helicopter 1 drops a fire-extinguishing bomb 6 at a position separated by ΔD from the ground surface 5 directly below to the fire occurrence point 3. There is an altitude difference ΔH from the altitude of the helicopter 1 to the target position where the fire should be extinguished at the fire occurrence point 3. The dropped fire bullet 6 accelerates by free fall during the section s1. When the speed of the fire-extinguishing bomb 6 increases due to the acceleration of gravity and the steering blades provided for the fire-extinguishing bomb 6 become effective, in the section s2, the fire-extinguishing bomb 6 is raised from a falling state to a substantially horizontal state by program guidance.

The fire-extinguishing bomb 6 is provided with a guide wire 7 for steering.
And continue to fly while leaving between the helicopter 1 and the mother machine. Program guidance in section s2
It is set from the geometrical relationship between the helicopter 1 and the field of view 4 of the control camera 2. The fire extinguisher 6 flies according to a set program in accordance with a signal transmitted through the guide wire 7. As a result, if the fire extinguisher 6 enters the field of view 4, the helicopter 1 can manually guide the fire extinguisher 6 while observing the image of the control camera 2 to hit the fire extinguishing spot 3 with high accuracy.

The method for guiding the fire extinguishing munitions 6 described above is, for example, about 15 kg filled with a fire extinguishing agent and the total weight is about 15 kg.
The kg fire extinguisher 6 is realized under the condition that the altitude difference ΔH is 300 m or more and the distance ΔD is 1 km at the maximum. Guiding wire 7
In this case, a very thin conductive wire or optical fiber is preferably used.

FIG. 2 shows a configuration related to the helicopter 1 of FIG. The launchers 10 of the fire extinguisher 6 are mounted on both sides of the helicopter 1. A maneuvering camera 2 is provided at the tip of the launcher 10 and is attached to, for example, a gimbal unit whose posture is stabilized by a three-axis gyro device, enabling stable photographing without being affected by vibration of the helicopter 1 or the like. is there. One firearm 10 can be equipped with three fire-extinguishing bombs 6. After the fire bomb 6 is fired,
It is performed by a signal from the transmitter 11. A signal is given to the transmitter 11 from the control device 12 for controlling based on the image from the control camera 2.

The method of guiding the fire extinguisher 6 according to this embodiment is summarized as follows. The helicopter 1 is hovered at a safe place near the fire occurrence point 3. Point the control camera 2 at the fire occurrence point 3. The fire-extinguishing bomb 6 is dropped, and acceleration by free fall is performed in the section s1. In the section s2, the fire extinguisher 6 is driven by the program guidance to the control camera 2
In the field of view 4 of the vehicle. In the section s3, the fire-extinguishing bomb 6 is guided by a wire through the guide wire 7 while watching the image captured by the control camera 2, and guided to the target point of the fire occurrence point 3 to hit.

FIGS. 3 and 4 show the structure of the fire extinguisher 6. 3 is a side view with a part cut away, and FIG. 3 is a rear view. A container 20 is attached to the front of the fire extinguisher 6 and is filled with a fire extinguisher 21. At the rear of the container 20, wings 22 are arranged. A steering wing 23 is attached to the rear end of the wing 22, and can be swingably displaced by a steering device 24. The wing 22 is expanded in an X shape, and the steering wing 23 is oscillatingly displaced, so that the wing 22 can change its direction to some extent during flight. A wire bobbin 25 for feeding the guide wire 7 shown in FIG. 1 is attached to the base of the blade 22.
The container 20 and the wings 22 are detachable, and the type of the fire extinguishing agent 21 can be selected according to the type and nature of the fire.
For example, a powder fire extinguisher 21 is used for an electric fire.

The extinguishing agent 21 in the container 20 is sprayed by the pressure of the gas generated from the gas generator 26, not by the explosion of explosives. The fire extinguisher 21 and the gas generator 26 are basically the same as those of a normal fire extinguisher. A collision detection sensor 27 is provided at the tip of the container 20, and detects that the fire-extinguishing bomb 6 collides with a window, a wall, a floor, or the like. Since the fire extinguisher 6 penetrates into the room by breaking through the window glass and the like, rather than spraying the extinguishing agent 21 immediately when the collision detection sensor 27 detects the collision, the fire extinguisher 6 surely enters the room after a certain period of time. It is more effective to spray the extinguishing agent 21. Such adjustment at the time of spraying the extinguishing agent 21 is
This can be achieved by delaying the time for operating the gas generator 26 by the signal from the collision detection sensor 27 to some extent. Further, a signal for operating the gas generator 26 may be transmitted from the helicopter 1 of FIG. 1 via the guide wire 7. The guide wire 7 is a very thin conductive wire or optical fiber.
May break when it breaks the window glass and enters the room, so that the fire extinguishing agent 21
It is more reliable to adjust the time of spraying.

FIG. 5 shows an electrical configuration for guiding the fire-extinguishing bomb 6. A receiver 28 is mounted on the fire extinguisher 6, receives a steering signal via the guide wire 7, and controls the steering device 24 based on the signal. The signal from the collision detection sensor 27 provided at the tip of the fire extinguisher
At 9, the gas generator 26 is operated after a certain time delay. In a case where a fire is generated from the inside of the building, the collision detection sensor 27 detects the collision when the window glass or the like is broken, but if the fire extinguishing agent 21 is sprayed from that moment, it is also sprayed on the outer wall of the building. As a result, the rate of effective spraying to the fire area is reduced. In order to ensure that the fire extinguishing munitions 6 rush inside only, the gas generator 26 is activated to spray the fire extinguishing agent 21 by the pressure of the expanding gas in order to surely spray the fire only inside the room.

A control signal is transmitted from the transmitter 11 installed in the helicopter 1 to the guide wire 7. This signal is generated from the pilot 12 that operates while watching the image captured by the steering camera 2. A computer is mounted in the pilot 12, and after the fire extinguisher 6 is fired from the launcher 10 and dropped, the above-mentioned free fall and program steering are performed.

FIG. 6 shows the configuration of another embodiment of the present invention. In this embodiment, a plurality of fire extinguishing bullets 6 can be emitted from the launcher 30 to be operated. The helicopter 31 has a launcher 30 mounted on the rear portion of the fuselage, and sends a guidance signal from a controller 32 to the fire extinguisher 6 launched from the launcher 30. The image from the control camera 2 is displayed on the pilot 32, and the pilot controls the flight path of the fire-extinguishing bomb 6 while watching the video to perform the control. The remaining fire extinguishing munitions 6 are housed in the helicopter 21. FIG. 7 is a simplified plan sectional view of the helicopter 21 of FIG. 6, and FIG. 8 is a simplified side sectional view thereof. When the fire-extinguishing bomb 6 is fired from such a helicopter 21, the fire-extinguishing bomb 6 can be quickly approached to a fire occurrence site that is not easily approached from the ground, and the fire-extinguishing bomb 6 is reliably fired from a relatively distant and safe position. You can hit the spot. For example, even when a fire occurs in a skyscraper in a city, it is possible to quickly dispatch without being affected by traffic congestion on the ground and perform an effective fire fighting activity. In addition, when ground traffic is difficult or impossible at the time of a major disaster, or in the event of a fire on a marine vessel, fire extinguishing activities can be performed quickly. Furthermore, if an infrared camera is used as the control camera 2, it is easy to guide at night.

In the above embodiment, although the structure of the fire extinguisher 6 is simplified and the amount of the extinguishing agent 21 mounted is increased, the fire extinguishing bullet 6 is individually equipped with a camera, and an image for remote control is provided. May be photographed. Although helicopters 1 and 31 are used as aircraft, other types of aircraft may be used. Although relatively low-speed aircraft such as airships and balloons are more advantageous for fire-fighting activities, in order to be able to rush to the scene immediately after a fire, helicopters 1, 31 and other high-speed flight Also possible is an aircraft.

[0022]

As described above, according to the present invention, it is possible to drop a fire extinguisher from an aircraft at a safe position away from a fire occurrence site and guide it safely and accurately without being affected by smoke or flame. it can. Since the fire extinguisher is allowed to fall freely to reach the speed required for steering, there is no need for a propellant or the like to propel the fire extinguishing rocket, and the fire extinguishing agent can be increased in weight to perform efficient fire extinguishing. . Further, since the fire extinguisher may be dropped, the fire extinguisher firing device can be simplified, and the mobility of the aircraft can be effectively utilized.

Further, according to the present invention, the fire extinguisher is dropped from the helicopter and the fire extinguisher is guided to the fire site by the image of the photographing device. Quick and effective fire fighting can be performed.

Further, according to the present invention, the fire extinguishing munition can be reliably steered and guided to the fire spot by the wired guidance.
The use of wireless radio waves makes it easy to be affected by various radio waves such as urban areas and makes it difficult to operate accurately. However, since it is wired, reliable and highly reliable guidance is possible.

[Brief description of drawings]

FIG. 1 is a side view showing a schematic configuration of an embodiment of the present invention.

FIG. 2 is a perspective view showing a helicopter used in the embodiment of FIG. 1 with a part thereof cut away.

FIG. 3 is a side view of the fire extinguisher bomb 6 used in the embodiment of FIG.

4 is a rear view of the fire extinguisher 6 used in the embodiment of FIG.

5 is a block diagram showing a schematic electrical configuration of the embodiment of FIG.

FIG. 6 is a perspective view showing a cutaway part of a helicopter used in another embodiment of the present invention.

FIG. 7 is a simplified plan sectional view of the helicopter of FIG. 6;

8 is a simplified side sectional view of the helicopter of the embodiment of FIG.

[Explanation of symbols]

 Reference Signs List 1,31 Helicopter 2 Control camera 3 Fire spot 4 View 6 Fire extinguisher 7 Guidance wire 10,30 Launcher 12,32 Pilot 20 Container 21 Fire extinguisher 22 Wing 23 Steering wing 24 Steering device 25 Wire bobbin 26 Gas generator 27 Collision Detection sensor

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical display area F41G 7/32 F41G 7/32 F42B 15/00 F42B 15/00 (72) Inventor Kenji Kenji Gifu Prefecture 1 Kawasaki-cho, Kakamigahara-shi Kawasaki Heavy Industries, Ltd. Gifu factory (72) Inventor Yuji Sugano 1 Kawasaki-cho, Kakamigahara-shi, Gifu Kawasaki Heavy Industries Gifu factory

Claims (3)

[Claims] 1. A method of ejecting a fire extinguisher equipped with a steering wing from an aircraft to guide the fire extinguisher to a fire site, the step of accelerating the fire extinguisher by natural fall, and the fire extinguisher according to a preset program. A method of guiding a fire extinguisher, comprising the step of guiding a fire extinguisher into a field of view for control from the aircraft, and a step of guiding the fire extinguisher from the aircraft to a fire site. 2. The method for guiding a fire extinguisher according to claim 1, wherein a helicopter is used as the aircraft, and the fire extinguisher is guided to a fire site by an image of a photographing device mounted on the helicopter. 3. The method for guiding a fire extinguisher according to claim 1 or 2, wherein the fire extinguisher is guided while connecting the fire extinguisher and the aircraft with a signal line for guidance.