Image display system

Abstract

To provide an image display system capable of checking a state of the other side with a fire door as a boundary from one side with the fire door as a boundary.SOLUTION: An image display system 1 includes: projection means 3 that is provided on one side with a fire door 2 as a boundary and provided so as to be able to project an image 5 onto the fire door 2 and / or the vicinity of the fire door 2; and imaging means 4 provided on the other side with the fire door 2 as a boundary and provided so as to be able to capture an image 6 of the other side. The projection means 3 can project the image 6 captured by the imaging means 4 onto the fire door 2 and / or the vicinity of the fire door 2.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an image display system. [Background technology]

[0002] Conventionally, there is a display system that projects a fire alarm and instructions on how to operate the fire door on the other side of the fire door when a fire detector installed in a room on one side of the fire door detects a fire (see, for example, Patent Document 1). This system is equipped with projection means on both sides of the fire door, and in the event of a fire, the projection means projects a fire alarm and other messages toward the fire door. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-138122 Summary of the Invention [Problem to be solved by the invention]

[0004] With conventional display systems, it is possible to recognize that a fire has broken out behind a fire door by visually checking the fire alarm projected on the fire door, but it is not possible to obtain detailed information about the actual condition behind the fire door.

[0005] Therefore, it was difficult to know whether it was better to open the fire door and carry out firefighting activities, or to use the access door behind the fire door to evacuate to the back side.Therefore, the object of the present invention is to provide an image display system that allows the status of one side of the fire door to be confirmed from the other side of the fire door. [Means for solving the problem]

[0006] The present invention is an image display system comprising a projection means provided on one side of a fire door and capable of projecting an image onto the fire door and / or the vicinity thereof, and a photographing means provided on the other side of the fire door and capable of photographing an image of the other side, wherein the image photographed by the photographing means can be projected onto the fire door and / or the vicinity thereof by the projection means.

[0007] The present invention also provides an image display system comprising a portable electronic information terminal that is capable of projecting another image onto an image of the fire door and / or its vicinity displayed on a screen by pointing the terminal at the fire door and / or its vicinity from one side of the fire door, and an imaging means that is provided on the other side of the fire door and is capable of capturing an image of the other side, and that is capable of projecting an image captured by the imaging means onto an image of the fire door and / or its vicinity.

[0008] The present invention also provides an image display system comprising a projection means provided on one side of a fire door and capable of projecting an image onto the fire door and / or the vicinity thereof, and a photographing means provided on the other side of the fire door and capable of photographing an image of the other side, wherein the image photographed by the photographing means can be distributed to a portable electronic information terminal, and information on the source of the image photographed by the photographing means can be projected by the projection means onto the fire door and / or the vicinity thereof.

[0009] The present invention can perform image processing on the image projected by the projection means so that it is clearly recognizable as an image.The present invention can also include a firefighter detection means, which can project the image captured by the imaging means when it detects a firefighter.The present invention can also be configured so that the portable electronic information terminal is provided as a facepiece for the firefighter, and the imaging direction of the imaging means can be controlled in accordance with the posture of the facepiece.

[0010] In the present invention, the image is defined to include a still image and a moving image. [Effects of the Invention]

[0011] The present invention provides an image display system in which a photographing means is provided on the other side of the fire door, and in an emergency, the image photographed by the photographing means or information about the source of the image can be projected onto the fire door and / or the vicinity of the fire door or onto the image thereof, thereby making it possible to provide an image display system in which the condition on the other side of the fire door can be confirmed from one side of the fire door. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a schematic diagram of a first embodiment of the present invention. [Figure 2] FIG. 10 is a schematic diagram of a second embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0013] A first embodiment of the present invention will be described with reference to Fig. 1. Image display system 1 includes projection means 3 provided on one side of fire door 2, and imaging means 4 provided on the other side of fire door 2. In the following description, the side of fire door 2 that a person arrives at first is defined as the "front," and the opposite side as the "back."

[0014] The fire door 2 is provided to close an opening of a building that is normally open in the event of a fire, and is, for example, a fire shutter.

[0015] The projection means 3 is, for example, a projector, and is provided on at least the front side of the fire door 2. The projection means 3 is provided so as to be able to project an image 5 (hereinafter referred to as a projected image 5) onto the fire door 2 or near the fire door 2, for example, onto a wall adjacent to the fire door 2. The projected image 5 is an image that shows the back side of the fire door 2. In this embodiment, the projection means 3 is provided so as to be able to project the projected image 5 captured by the capturing means 4 onto the surface of the fire door 2.

[0016] Specifically, in this embodiment, the projection means 3 is installed on the ceiling surface on the front side of the fire door 2, and projects the projection image 5 onto almost the entire surface of the fire door 2 (depending on the angle of view of the original image 6, almost the entire surface including the fire door 2 and the wall nearby), at the same angle of view as when the image was captured by the imaging means 4.

[0017] When projecting the projected image 5 onto almost the entire surface of the fire door 2, wall, etc., if the image captured by the photographing means 4 is simply projected onto the fire door 2, the image may be mistaken for a fire on the front side of the fire door 2 because the image is relatively clear. Therefore, the projected image 5 is subjected to image processing so that it can be clearly recognized as an image.

[0018] In this embodiment, grayscaling or black and white binarization is used as the image processing, and a black and white image is projected onto the fire door 2. However, the image processing is not limited to grayscaling or black and white binarization, and color inversion or other image processing can be appropriately used as long as the projected image 5 is clearly recognized as an image.

[0019] The photographing means 4 is, for example, a photographing camera, and is provided at least on the rear side of the fire door 2. The photographing means 4 is provided so as to be able to photograph an image 6 of the rear side of the fire door 2 (hereinafter referred to as the original image 6). The photographing means 4 is provided so as to be able to transmit the photographed original image 6 to the projection means 3 directly or indirectly by wired or wireless communication. Note that although it is possible to make the original image 6 a still image and transmit the original image 6 intermittently, from the viewpoint of grasping the state of the rear side of the fire door 2 in real time, it is preferable to make the original image 6 a moving image and transmit it continuously.

[0020] In this embodiment, the image capturing means 4 is installed on the ceiling or wall behind the fire door 2, and is configured to start capturing the original image 6 when a fire breaks out. The occurrence of a fire can be determined by providing the image capturing means 4 to be able to communicate with disaster prevention equipment (not shown) such as an automatic fire alarm system or a fire detector (not shown), and receiving a fire signal from the fire prevention equipment, etc. Alternatively, the image capturing means 4 may be provided with a fire sensor (not shown), so that the image capturing means 4 can make the determination itself.

[0021] When a fire breaks out, the photographing means 4 starts photographing an original image 6 and transmits the original image 6 to the projection means 3. Based on the transmitted original image 6, the projection means 3 projects a projection image 5 onto the fire door 2. In the image display system 1 of this embodiment, by checking the projection image 5 projected onto the fire door 2, it is possible to check the state of the back side, which is the other side of the fire door 2, even from the front side, which is one side of the fire door 2, in the event of a fire.

[0022] It is also possible to provide a photographing means 4 on one side of the fire door 2 and a projection means 3 on the other side of the fire door 2, so that the state behind the fire door 2 can be confirmed from either side.

[0023] Although the present embodiment has been described above based on the above embodiment, the present invention is not limited to the above embodiment and can be modified as appropriate within the scope of the invention.

[0024] (1) In the first embodiment, the projection means 3 was used to project the projection image 5 onto the fire door 2, etc. However, when projecting the projection image 5 onto the fire door 2, it is also possible to apply technology such as augmented reality (AR), as in the second embodiment of the present invention (see Figure 2; components represented by the same symbols as in the first embodiment are the same as in the first embodiment).

[0025] In this case, the image display system 1 is equipped with a portable electronic information terminal 7 (hereinafter abbreviated as information terminal 7), such as a smartphone, tablet, smart glasses, etc., instead of the projection means 3, and the information terminal 7 is configured to be able to project another image onto an image 8 of the fire door 2 and / or the vicinity of the fire door 2 (hereinafter referred to as projected image 8) captured by a camera provided in the information terminal 7 and displayed on the screen by pointing the information terminal 7 toward the fire door 2 and / or the vicinity of the fire door 2 from one side of the fire door 2. In addition, the photographing means 4 further includes communication means (not shown) configured to be able to transmit the original image 6 directly or indirectly to the portable electronic information terminal 7.

[0026] In an emergency, when the information terminal 7 is turned toward the fire door 2 or a location near the fire door 2 from one side of the fire door 2, the original image 6 transmitted to the information terminal 7 is projected onto the projected image 8 on the screen of the information terminal 7, and the projected image 8 and the projected image 5 are displayed on the screen so that they overlap. This allows the user to check the situation behind the fire door 2 through the screen. The same effects as those of the first embodiment can be achieved. The application required for this projection may be run on the information terminal 7 or on an external device accessible to the information terminal 7. The information terminal 7 and the image capturing unit 4 may be linked, and the image capturing direction of the image capturing unit 4 may be controlled according to the direction in which the information terminal 7 is facing.

[0027] It is also possible to combine the first and second embodiments and project the projection image 5 onto the fire door 2 or near the fire door 2 by the projection means 3, and also onto the projected image 8 on the screen of the information terminal 7.

[0028] (2) In the first embodiment, the projection means 3 projects the projection image 5 onto the fire door 2 and / or in the vicinity of the fire door 2. However, instead of projecting the projection image 5, in the event of a fire, the original image 6 or an image created from the original image 6 (hereinafter referred to as a distributed image) can be distributed via the photographing means 4, the projection means 3 or other accessible equipment (e.g., a server, etc.), and the projection means 3 can project information (not shown) about the source of the distributed image, for example, a two-dimensional code containing a URL for accessing the image, onto the fire door 2 and / or in the vicinity of the fire door 2.

[0029] In this case, by acquiring the distributed image using a portable electronic information terminal (not shown) based on the information about the distribution source, the distributed image is displayed on the screen of the portable electronic information terminal in the same manner as the projected image 5 in the second embodiment (regardless of whether the portable electronic information terminal is pointed toward the fire door 2 and / or the vicinity of the fire door 2), making it possible to check the state of the back side of the fire door 2 even when standing on the front side of the fire door 2, thereby achieving the same effect as in the first embodiment. It is also possible to add information about the distribution source to the projected image 5, so that the projection means 3 can project the projected image 5 and distribute the distributed image to the portable electronic information terminal at the same time. The information about the distribution source may be attached in advance to the fire door 2 and / or the vicinity of the fire door 2.

[0030] (3) In the first embodiment, the projected image 5 is projected onto almost the entire surface of the fire door 2. However, the projected image 5 may be projected onto a part of the fire door 2, a wall, etc. In this case, the fire door 2 can be recognized, and it is clear that the projected image 5 is an image without image processing, so the image captured by the image capturing means 4 can be projected in color as is.

[0031] (4) When projecting the projected image 5 after processing the colors, such as a black and white image, it is also possible to project an image without processing the colors like a wipe (displaying a reduced image at the edge of the image, such as the upper right) so that the actual colors can be seen. It is also possible to superimpose other information, such as text, on the projected image 5. Such other information may include, for example, the status of the fire, evacuation directions, and the locations of fire extinguishers and hydrants.

[0032] (5) A firefighter detection means (not shown), for example, a short-range communication terminal such as a beacon that is held by a firefighter and is capable of communicating with the projection means 3 and the image capture means 4, may be provided, and when the firefighter detection means detects the firefighter, the projected image 5 may be projected onto the fire door 2 and / or near the fire door 2. By doing this, since the projected image 5 showing a fire is an image that incites fear in the general public, it is possible to prevent the general public from being frightened by having it basically only be viewed by firefighters.

[0033] In this case, the firefighter's facepiece may be configured as a portable electronic information terminal such as smart glasses, and the projected image 5 may be displayed on the facepiece, in which case the projected image 5 may be displayed on the facepiece as in the second embodiment. Furthermore, an attitude detection device may be provided on the facepiece, and the facepiece and the imaging means 4 may be linked to control the imaging direction of the imaging means 4 according to the attitude of the facepiece.

[0034] (6) The image captured by the image capturing means 4 may be transmitted to a computer or the like in a disaster prevention center. This allows the situation of a fire or the like to be grasped more quickly.

[0035] (7) In the above embodiment, a fire is assumed, but the image display system 1 can be adapted to be used not only in the event of a fire but also in the event of an intrusion, disaster, or other emergency. Also, during evacuation drills, etc., the projection means 3 can project a pseudo image for training purposes onto the fire door 2 and / or near the fire door 2. [Explanation of symbols]

[0036] 1 Image display system 2 Fire door 3 Projection means 4. Shooting means 5. Projected image 6. Original image 7 Portable electronic information terminal 8 Projected image

Claims

1. a projection means provided on one side of the fire door and capable of projecting an image onto the fire door and / or near the fire door; and a photographing means provided on the other side of the fire door so as to be able to photograph an image of the other side, An image display system characterized in that the image captured by the imaging means can be projected by the projection means onto the fire door and / or near the fire door.

2. a portable electronic information terminal that is capable of projecting another image onto an image of the fire door and / or the vicinity of the fire door displayed on a screen by pointing the portable electronic information terminal at the fire door and / or the vicinity of the fire door from one side of the fire door; and a photographing means provided on the other side of the fire door so as to be able to photograph an image of the other side, An image display system characterized in that the image captured by the imaging means can be projected onto an image of the fire door and / or the vicinity of the fire door.

3. a projection means provided on one side of the fire door and capable of projecting an image onto the fire door and / or near the fire door; and a photographing means provided on the other side of the fire door so as to be able to photograph an image of the other side, The image captured by the imaging means can be distributed to a portable electronic information terminal. The image display system is characterized in that the projection means is capable of projecting information about a source of an image captured by the imaging means onto the fire door and / or near the fire door.

4. 2. The image display system according to claim 1, wherein the image projected by said projection means is subjected to image processing so that it can be clearly recognized as an image.

5. Further comprising a firefighter detection means, 5. The image display system according to claim 1, wherein the firefighter detection means projects the image captured by the image capture means when the firefighter detection means detects a firefighter.

6. the portable electronic information terminal is provided as a facepiece of the firefighter, 6. The image display system according to claim 5, wherein the imaging direction of the imaging means is controllable in accordance with the attitude of the facepiece.

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