Airflow control system and airflow control method

Abstract

We provide an airflow control system that enables innovative and groundbreaking visual effects. [Solution] The airflow control system 100 comprises at least four column members 11-14 arranged to surround a certain section, a first beam member 21 connecting adjacent first column member 11 and second column member 12, a second beam member 22 connecting adjacent third column member 13 and fourth column member 14, multiple outlets 31 provided on each column member 11-14 and each beam member 21,22, and a blower 32 that supplies air to the outlets 31. The airflow control system 100 is configured to blow air from multiple outlets 31 in such a way that it generates a lateral rotational flow that rotates around an axis extending in the direction of extension of the first beam member 21 and the second beam member 22.

Description

Technical Field

[0001] The present invention relates to an airflow control system and an airflow control method. Specifically, the present invention relates to a system and method for generating an airflow in a predetermined space by blowing air from a blower device.

Background Art

[0002] Conventionally, an effect system for generating an airflow in a predetermined space to suspend floating objects has been known (Patent Document 1, Patent Document 2). For example, Patent Document 1 discloses a bubble effect system for suspending an aggregate of bubbles by generating an airflow in a clockwise or counterclockwise direction in a plan view within an effect space surrounded by the exhaust ports of a plurality of blowers.

[0003] Further, Patent Document 2 discloses an effect system for suspending floating objects such as balls by generating an airflow in a clockwise or counterclockwise direction in a plan view within an effect space surrounded by the exhaust ports of a plurality of exhaust devices. Also, in the systems described in these patent documents, an intake device is provided above the effect space to generate a tornado-like upward airflow within the effect space.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] Incidentally, the systems described in Patent Documents 1 and 2 both generated rotational flow centered on a vertical axis, that is, rotational flow in a plan view. With only such vertical rotational flow, the movement of floating objects tends to be monotonous, and there are limitations to the diversity of the effects that can be produced.

[0006] Furthermore, with conventional systems, if you wanted to make floating objects rotate with different movements, you had to significantly change the entire system, which resulted in a lack of freedom in staging.

[0007] Therefore, the main objective of the present invention is to provide an airflow control system and an airflow control method that generate a rotational flow in a direction different from conventional systems, enabling novel and innovative effects. [Means for solving the problem]

[0008] The inventors of the present invention diligently studied means to solve the problems of the conventional invention described above, and as a result, discovered that by arranging multiple column members and beam members to surround a three-dimensional section for a performance, and by providing multiple air outlets on each of these column members and beam members, it becomes possible to generate, for example, a lateral rotational flow that rotates around a horizontal axis. Based on this discovery, the inventors realized that the problems of the conventional technology could be solved, and thus completed the present invention. Specifically, the present invention has the following configuration.

[0009] A first aspect of the present invention relates to an airflow control system 100. The airflow control system 100 includes at least four column members 11-14, at least two beam members 21, 22, an outlet 31, and a blower 32. The at least four column members 11-14 include a first column member 11, a second column member 12, a third column member 13, and a fourth column member 14, which are arranged to enclose a certain section. The at least two beam members 21, 22 include a first beam member 21 and a second beam member 22. The first beam member 21 connects adjacent first column members 11 and second column members 12 among the column members 11-14. The second beam member 22 is arranged substantially parallel to the first beam member 21 and connects adjacent third column members 13 and fourth column members 14 among the column members. In this specification, "substantially parallel" means that an inclination of 5° or less with respect to perfectly parallel axes is permitted. Multiple outlets 31 are provided on each of the column members 11-14 and beam members 21 and 22. Preferably, the direction of the airflow (direction of air discharge) of the outlets 31 can be adjusted manually or automatically. The blower 32 supplies air to the outlets 31. There may be only one blower 32 or multiple blowers 32. The airflow control system 100 according to the present invention is configured to blow air from multiple outlets 31 so as to generate a lateral rotational flow that rotates around an axis extending in the direction of extension of the first beam member 21 and the second beam member 22. Preferably, the axis extending in the direction of extension of the first beam member 21 and the second beam member 22 is a horizontal axis, but it does not have to be a perfectly horizontal axis. However, for convenience, in this specification, the axis extending in the direction of extension of the first beam member 21 and the second beam member 22 is also referred to as the "horizontal axis."

[0010] According to the airflow control system 100 of the present invention, it is possible to generate a lateral rotational flow that rotates around an axis extending in the direction of extension of the first beam member 21 and the second beam member 22. Such a lateral rotational flow can impart a completely different movement to floating objects compared to conventional vertical rotational flows. This makes it possible to provide novel performance effects that could not be achieved with conventional technology. Furthermore, the lateral rotational flow can cause floating objects F, for example, to revolve around a horizontal axis, thus providing the audience with a visually fresh and attractive performance.

[0011] The airflow control system 100 according to the present invention preferably further includes a third beam member 23 and a fourth beam member 24. The third beam member 23 is arranged in a direction substantially orthogonal to the first beam member 21 and the second beam member 22, and connects the first column member 11 and the third column member 13. In this specification, "substantially orthogonal" means that it is permissible to be inclined by 5° or less with respect to perfectly orthogonal axes. The fourth beam member 24 is arranged substantially parallel to the third beam member 23, and connects the second column member 12 and the fourth column member 14. Multiple outlets 31 are provided on each of these third beam member 23 and fourth beam member 24. By providing the third beam member 23 and fourth beam member 24 in this way, the area can be enclosed more reliably. This makes it possible to form a more stable lateral rotational flow within the area. In addition, by providing multiple outlets 31 on the third beam member 23 and fourth beam member 24, the number of outlets contributing to the formation of the rotational flow increases, and the accuracy of airflow control is improved.

[0012] In the airflow control system 100 according to the present invention, it is preferable that a plurality of adjacent compartments, each enclosed by at least four column members 11-14, a first beam member 21, and a second beam member 22, are provided in the direction of extension of the first beam member 21 and the second beam member 22 (also referred to as the "horizontal direction"). Note that adjacent compartments may share column members. That is, when two compartments are adjacent, there may be four column members in each compartment, totaling eight, or the two compartments may share column members, resulting in a total of six. By providing these compartments adjacently in multiple locations in the direction of extension of the first beam member 21 and the second beam member 22, a wide performance space can be secured. This makes it possible to rotate the floating object F over a long distance, enabling a larger-scale and more impressive performance. Furthermore, by connecting multiple compartments, a single long horizontal rotational flow can be formed, or independent rotational flows can be formed in each compartment. This significantly increases the freedom of performance.

[0013] The airflow control system 100 according to the present invention may further include a first wall section 41, a second wall section 42, an intake port 51, and an intake device 52. The first wall section 41 is provided in a section (A1) located at one end of the extension direction of the first beam member 21 and the second beam member 22, among a plurality of sections, so as to block the space between the first column member 11 and the third column member 13. The second wall section 42 is provided in a section (A3) located at the opposite end of the extension direction of the first beam member 21 and the second beam member 22, among a plurality of sections, so as to block the space between the second column member 12 and the fourth column member 14. The intake port 51 is provided in each of the first wall section 41 and the second wall section 42. The intake device 52 draws in air through the intake port 51. By providing the first wall section 41 and the second wall section 42 at both ends of the multiple compartments in this manner, it is possible to prevent the airflow within the compartments from flowing out from the ends. This makes it possible to maintain a more stable lateral rotational flow. In addition, air can be drawn in from within the compartments by the intake ports 51 and intake device 52 provided in the first wall section 41 and the second wall section 42. For example, by drawing in air from either the intake port 51 of the first wall section 41 or the intake port 51 of the second wall section 42 and stopping the drawing in from the other intake port 51, the lateral rotational flow can be given directionality. This makes it possible to maintain a more stable rotational flow. Furthermore, the direction of the rotational flow can be easily changed by switching the intake ports 51 that draw in air.

[0014] The airflow control system 100 according to the present invention may further include an object detection sensor 60 and a control device 80. The object detection sensor 60 detects spectators or floating objects within the area. The control device 80 can receive detection information from the object detection sensor 60. The control device 80 controls the blower 32 based on the detection information from the object detection sensor 60. For example, the control device 80 controls the ON / OFF status and airflow rate of the blower 32. By providing the object detection sensor 60 and the control device 80 in this way, the position and movement of spectators or floating objects within the area can be detected in real time. The control device 80 can control the blower 32 based on this detection information. For example, if a floating object F moves to a specific location in the area, the airflow rate of the blower 32 can be adjusted to guide the floating object F to the desired location. Also, if there is an uneven distribution of a large number of floating objects F, the airflow rate of the blower 32 may be adjusted so that the distribution of floating objects F becomes uniform. When spectators enter the designated area, the airflow from the ventilation device 32 can be reduced to ensure safety, or conversely, the airflow can be increased to enhance the sense of realism. In this way, appropriate airflow control can be performed according to the situation, improving both the performance effect and safety.

[0015] In the airflow control system 100 according to the present invention, it is preferable that each outlet 31 is configured to allow electronic control of the direction of air discharge. Alternatively, each outlet 31 may also be configured to allow electronic control of the amount of air discharged. By configuring the outlets 31 to allow electronic control of the direction of air discharge, it becomes possible to dynamically change the direction and strength of the swirling flow. For example, by changing the wind direction of the outlet 31, the direction of rotation of a lateral swirling flow can be reversed. Furthermore, by individually controlling the wind direction for each outlet 31, complex airflow patterns can be formed. This allows for more precise control of the movement of the floating object F, significantly improving the freedom of the performance.

[0016] In the airflow control system 100 according to the present invention, the control device 80 may control the direction of air discharge from the outlet 31 based on detection information from the object detection sensor 60. By controlling the direction of air discharge from the outlet 31 based on detection information from the object detection sensor 60 in this way, fine-grained airflow control according to the positions of floating objects F and spectators O becomes possible. For example, the distribution of the numerous floating objects mentioned above can be adjusted more precisely. In addition, when a floating object F moves to a specific position, the optimal wind direction of the outlet 31 can be set according to that position, making the floating object F move along a desired trajectory.

[0017] The airflow control system 100 according to the present invention may be configured such that a section enclosed by at least four column members 11-14, a first beam member 21, and a second beam member 22 is provided adjacent to multiple locations in the direction of extension of the first beam member 21 and the second beam member 22 (X direction), and adjacent to multiple locations in the direction of extension of the third beam member 23 and the fourth beam member 24 (Y direction). As mentioned above, adjacent sections may also share column members. That is, when two sections are adjacent, there may be four column members in each section for a total of eight, or the column members may be shared between the two sections for a total of six. Also, when three sections are adjacent in an L-shape, there may be four column members in each section for a total of twelve, or the column members may be shared between adjacent sections for a total of eight. By creating multiple adjacent compartments in both the extension direction of the first beam member 21 and the second beam member 22 (X direction) and the extension direction of the third beam member 23 and the fourth beam member 24 (Y direction), a planar, expansive performance space can be constructed. This makes it possible to create not only lateral rotational flows in the X direction but also lateral rotational flows in the Y direction. Furthermore, by combining multiple compartments, more complex and large-scale airflow patterns can be formed, greatly expanding the possibilities for performance. For example, by combining rotational flows in the X and Y directions, it is possible to induce complex movements in floating objects F.

[0018] The airflow control system 100 according to the present invention may have multiple sections arranged in a vertical (Z-direction) stack, with each section enclosed by at least four column members 11-14, a first beam member 21, and a second beam member 22. In this case, it is preferable that the airflow control system 100 is configured to switch the direction in which air is blown out from multiple outlets 31 so as to generate clockwise or counterclockwise rotational flow in a plan view. By stacking the sections in a vertical (Z-direction) stack in this way, a three-dimensional performance space can be constructed. In this case, by switching the airflow direction of the outlets 31, it is possible to generate not only horizontal rotational flow but also vertical rotational flow that is clockwise or counterclockwise in a plan view. This makes it possible to perform performances using vertical rotational flow, which was realized in the prior art, and by switching between horizontal and vertical rotational flow, the diversity of performances can be greatly improved. It is also possible to generate different types of rotational flow simultaneously in the upper and lower sections.

[0019] The airflow control system 100 according to the present invention may further include an intake port 51 provided on at least one of the floor surface 91 and the ceiling surface 92 of the compartment, and an intake device 52 that draws in air through the intake port 51. By providing the intake port 51 on at least one of the floor surface 91 and the ceiling surface 92 of the compartment in this way, a vertical rotational flow can be formed more effectively. For example, if the intake port 51 is provided on the floor surface 91, a downward airflow can be formed in combination with a rotational flow in a plan view. Also, if the intake port 51 is provided on the ceiling surface 92, an upward airflow can be formed. This makes it possible to generate a tornado-like airflow, further expanding the range of effects. Furthermore, by providing the intake port 51 on both the floor surface 91 and the ceiling surface 92, it is possible to switch between upward and downward airflows and circulate airflow more efficiently.

[0020] The airflow control system 100 according to the present invention may be configured such that a section enclosed by at least four column members 11-14, a first beam member 21, and a second beam member 22 is provided adjacent to multiple locations in the direction of extension of the first beam member 21 and the second beam member 22 (X direction), and adjacent to multiple locations in the direction of extension of the third beam member 23 and the fourth beam member 24 (Y direction), and is stacked in multiple layers in the vertical direction (Z direction). By arranging multiple sections in the X, Y, and Z directions in this way, a large-scale performance space that extends three-dimensionally can be constructed. This makes it possible to form lateral rotational flows, vertical rotational flows, and complex airflow patterns combining them over a wide spatial range. With this configuration, diverse and large-scale performances can be realized. Furthermore, by controlling multiple sections independently, different performances can be implemented simultaneously for each section or using multiple sections, improving the degree of freedom in performance.

[0021] A second aspect of the present invention relates to an airflow control method. The airflow control method according to the second aspect utilizes the airflow control system 100 according to the first aspect described above. That is, the airflow control method includes the step of blowing air from a plurality of outlets 31 using the airflow control system 100 described above to generate a lateral rotational flow that rotates around an axis extending in the direction of extension of the first beam member 21 and the second beam member 22.

[0022] The airflow control method according to the present invention preferably includes the step of arranging multiple floating objects F in a compartment and causing the floating objects F to rotate within the compartment using the aforementioned lateral rotational flow. By arranging multiple floating objects F in a compartment in this way and causing them to rotate within the compartment using a lateral rotational flow, a visually appealing effect can be achieved. The sight of multiple floating objects F rotating on a lateral rotational flow creates a fresh visual effect that cannot be obtained with conventional vertical rotational flows. In particular, because the floating objects F move at the same height as the audience's line of sight with a lateral rotational flow, it can give the audience a strong sense of immersion and significantly improve the effect of the performance. [Effects of the Invention]

[0023] According to the present invention, a horizontal rotational flow that rotates about a horizontal axis can be generated. As a result, it becomes possible to create a new production effect that could not be achieved with the conventional vertical rotational flow. Further, according to a preferred embodiment of the present invention, it is also possible to switch between the horizontal rotational flow and the vertical rotational flow. Therefore, the diversity of the production can be significantly improved. Furthermore, when a plurality of floating objects are arranged, these floating objects can be rotated in various patterns, providing a visually attractive production for the audience.

Brief Description of the Drawings

[0024] [Figure 1] It is a perspective view schematically showing the basic configuration of an airflow control system according to an embodiment of the present invention. [Figure 2] It is a perspective view schematically showing the blowing direction of air from a blowout port for generating a horizontal rotational flow. [Figure 3] It is a perspective view schematically showing a state in which a horizontal rotational flow is generated. [Figure 4] It is a perspective view schematically showing a state in which a plurality of floating objects and an audience are arranged within a section. [Figure 5] It is a block diagram showing an example of a control system of an airflow control system. [Figure 6] It is a perspective view showing an example of an airflow control system having a 3×3 section in the planar direction. [Figure 7] It is a perspective view schematically showing a configuration for generating a vertical rotational flow. [Figure 8] It is a perspective view schematically showing the blowing direction of air from a blowout port for generating a vertical rotational flow. [Figure 9] It is a perspective view schematically showing a state in which a vertical rotational flow is generated. [Figure 10] It is a perspective view showing an example of an airflow control system having 3×3 sections in each of the upper and lower two stages.

Modes for Carrying Out the Invention

[0025] The following describes embodiments for carrying out the present invention with reference to the drawings. The present invention is not limited to the embodiments described below, but also includes modifications made to the embodiments described below within the scope that would be obvious to those skilled in the art.

[0026] Figure 1 is a perspective view showing the basic configuration of an airflow control system 100 according to one embodiment of the present invention. The airflow control system 100 according to this embodiment can generate a lateral rotational flow that rotates around a horizontally extending axis in a performance space basically set up indoors. This lateral rotational flow makes it possible to rotate multiple floating objects F placed within the area around the horizontal axis. This provides a novel performance effect that could not be achieved with conventional vertical rotational flows. It is also possible to install the airflow control system 100 outdoors, although this is not suitable due to the influence of wind.

[0027] In the example shown in Figure 1, the airflow control system 100 has three sections A1, A2, and A3. These sections A1, A2, and A3 are arranged adjacent to each other along the extension direction of the first beam member 21 and the second beam member 22 (hereinafter also referred to as the "X direction"). Each section A1, A2, and A3 is a three-dimensional space defined by being enclosed by multiple column members and multiple beam members. In the example shown in Figure 1, four column members 11 to 14 are provided for each section to form it. In the example shown in Figure 1, since column members are not shared between adjacent sections, a total of 12 column members are used to construct the three sections A1, A2, and A3. However, it is also possible to configure the system so that column members are shared between adjacent sections. For example, if column members are shared between section A1 and section A2, the number of column members required to construct the three sections A1, A2, and A3 can be reduced to 10.

[0028] In the example shown in Figure 1, each section A1, A2, and A3 is demarcated by four column members, and therefore exhibits a rectangular shape in plan view. In particular, in this embodiment, each section A1, A2, and A3 is square in plan view. However, the number of column members forming the section is not limited to four. For example, the number of column members surrounding the section can be five, six, seven, or more. In this case, the shape of the section can be a pentagon, hexagon, heptagon, or more polygons in plan view. Thus, the shape of the section and the number of column members can be appropriately changed according to the purpose of the performance and the constraints of the installation location.

[0029] The size of each section A1, A2, and A3 can be appropriately set according to the scale of the performance and the installation location. For example, the width, depth, and height of one section can be 1m to 5m, preferably 1.5m to 3m, and particularly preferably around 2m. In the example shown in Figure 1, each section A1, A2, and A3 is square in plan view, and their width and depth are approximately the same. The height of each section A1, A2, and A3 is also approximately the same as the width and depth, and each section forms a cubic space. However, the shape of the sections is not limited to cubes; they can also be rectangular prisms or other shapes.

[0030] The following will provide a detailed explanation of each element constituting the airflow control system 100, with reference to Figure 1.

[0031] The airflow control system 100 comprises a plurality of column members. The column members are arranged to extend vertically so as to surround a section. In the example shown in Figure 1, section A1 is surrounded by the first column member 11(A1), the second column member 12(A1), the third column member 13(A1), and the fourth column member 14(A1). Similarly, section A2 is surrounded by the first column member 11(A2), the second column member 12(A2), the third column member 13(A2), and the fourth column member 14(A2). Section A3 is surrounded by the first column member 11(A3), the second column member 12(A3), the third column member 13(A3), and the fourth column member 14(A3). Thus, in this embodiment, four column members are provided for each section. Furthermore, adjacent column members in adjacent sections should be arranged in close contact without any gaps.

[0032] Each column member 11-14 is positioned at the four corners of the section. Specifically, the first column member 11 and the second column member 12 are positioned adjacent to each other with a certain distance between them, and the third column member 13 and the fourth column member 14 are also positioned adjacent to each other with a certain distance between them. Furthermore, the first column member 11 and the third column member 13 are positioned adjacent to each other with a certain distance between them, and the second column member 12 and the fourth column member 14 are also positioned adjacent to each other with a certain distance between them. In addition, the first column member 11 and the fourth column member 14 are located diagonally opposite each other, and the second column member 12 and the third column member 13 are also located diagonally opposite each other. In the example shown in Figure 1, the first column member 11 and the second column member 12 are positioned towards the front of the drawing, and the third column member 13 and the fourth column member 14 are positioned towards the back of the drawing.

[0033] Furthermore, in this embodiment, each column member 11 to 14 is formed in the shape of a rectangular prism. That is, the cross-sectional shape of each column member 11 to 14 can be a square or a rectangle. The length of one side of each column member 11 to 14 is, for example, 10 cm to 50 cm, preferably 20 cm to 40 cm. The height of each column member 11 to 14 is approximately the same as the height of the compartment, and can be, for example, 1 m to 5 m. Each column member 11 to 14 can be formed from metal, wood, resin, or a combination thereof. The interior of each column member 11 to 14 may be hollow or solid. Multiple air outlets 31, which will be described later, are provided on the surface of each column member 11 to 14.

[0034] The airflow control system 100 comprises a plurality of beam members. The beam members are arranged to extend horizontally so as to connect adjacent column members. In this embodiment, the beam members include a first beam member 21, a second beam member 22, a third beam member 23, and a fourth beam member 24 for each section. The first beam member 21 and the second beam member 22 are arranged substantially parallel to each other. The third beam member 23 and the fourth beam member 24 are also arranged substantially parallel to each other. Furthermore, the first beam member 21 and the second beam member 22 are arranged in a direction substantially perpendicular to the third beam member 23 and the fourth beam member 24.

[0035] The first beam member 21 connects adjacent first column members 11 and second column members 12. In the example shown in Figure 1, section A1 has the first beam member 21(A1), section A2 has the first beam member 21(A2), and section A3 has the first beam member 21(A3). The second beam member 22 is positioned substantially parallel to the first beam member 21 and connects adjacent third column members 13 and fourth column members 14. In the example shown in Figure 1, section A1 has the second beam member 22(A1), section A2 has the second beam member 22(A2), and section A3 has the second beam member 22(A3). The first beam member 21 is positioned towards the viewer in the drawing, and the second beam member 22 is positioned towards the viewer in the drawing. The direction of extension of the first beam member 21 and the second beam member 22 is also referred to as the X direction in this specification. In the example shown in Figure 1, the airflow control system 100 can generate a lateral rotational flow that rotates around an axis extending in the direction of extension (X direction) of the first beam member 21 and the second beam member 22.

[0036] The third beam member 23 is positioned substantially perpendicular to the first beam member 21 and the second beam member 22, connecting the adjacent first column member 11 and the third column member 13. In the example shown in Figure 1, the third beam member 23(A1) is provided in section A1, the third beam member 23(A2) is provided in section A2, and the third beam member 23(A3) is provided in section A3. The fourth beam member 24 is positioned substantially parallel to the third beam member 23, connecting the adjacent second column member 12 and the fourth column member 14. In the example shown in Figure 1, the fourth beam member 24(A1) is provided in section A1, the fourth beam member 24(A2) is provided in section A2, and the fourth beam member 24(A3) is provided in section A3. The extending direction of the third beam member 23 and the fourth beam member 24 is also referred to as the Y direction in this specification.

[0037] Each beam member 21-24 is formed in a rectangular prism shape, similar to the column members 11-14. The cross-sectional shape of each beam member 21-24 can be square or rectangular. The length of one side of each beam member 21-24 can be, for example, 10cm to 50cm, preferably 20cm to 40cm. The length of each beam member 21-24 is approximately the same as the width or depth of the compartment, for example, 1m to 5m. The beam members 21-24 can be made of metal, wood, resin, or a combination thereof. The interior of each beam member 21-24 may be hollow or solid. Multiple air outlets 31, described later, are provided on the surface of each beam member 21-24.

[0038] The airflow control system 100 is equipped with multiple air outlets 31. Multiple air outlets 31 are provided on each of the column members 11-14 and beam members 21-24. Each air outlet 31 is provided on the surface of the column members 11-14 or beam members 21-24 that faces the compartment. For example, the air outlet 31 provided on the first column member 11 is positioned to face inward into the compartment. In Figure 1, the small circles shown as solid lines or dotted lines both represent air outlets 31. Air outlets 31 shown as solid lines are in a visible location, while air outlets 31 shown as dotted lines are in a location that is hidden behind the column member or beam member and cannot be seen.

[0039] More specifically, each air outlet 31 is provided on a surface facing inward towards the compartment so that it can blow air inward towards the compartment. Since compartment A1 is located at the leftmost of the three compartments, the surfaces on which each column member is provided with an air outlet 31 are the right side of the first column member 11 (A1) (facing the second column member 12), the front of the second column member 12 (A1) (facing the fourth column member 14), the right side of the third column member 13 (A1) (facing the fourth column member 14), and the front of the fourth column member 14 (A1) (facing the second column member 12). Furthermore, in section A1, the surfaces on which each beam member is provided with an air outlet 31 are the front of the first beam member 21(A1) (the surface facing the second beam member 22), the front of the second beam member 22(A1) (the surface facing the first beam member 21), the right side of the third beam member 23(A1) (the surface facing the fourth beam member 24), and the bottom surface of the fourth beam member 24(A1) (the surface facing the floor). Furthermore, since section A2 is located in the center, the surfaces on which each column member is provided with an air outlet 31 are the front of the first column member 11(A2) (facing the third column member 13), the front of the second column member 12(A2) (facing the fourth column member 14), the front of the third column member 13(A2) (facing the first column member 11), and the front of the fourth column member 14(A2) (facing the second column member 12). Also, in section A2, the surfaces on which each beam member is provided with an air outlet 31 are the front of the first beam member 21(A2) (facing the second beam member 22), the front of the second beam member 22(A2) (facing the first beam member 21), the bottom surface of the third beam member 23(A2) (facing the floor), and the bottom surface of the fourth beam member 24(A2) (facing the floor). Furthermore, since section A3 is located at the far right, the surfaces on which each column member is provided with an air outlet 31 are the front of the first column member 11 (A3) (the surface facing the third column member 13), the left side of the second column member 12 (A3) (the surface facing the first column member 11), the front of the third column member 13 (A3) (the surface facing the first column member 11), and the left side of the fourth column member 14 (A3) (the surface facing the third column member 13). Furthermore, in section A3, the surfaces on which each beam member is provided with an air outlet 31 are the front of the first beam member 21 (A3) (the surface facing the second beam member 22), the front of the second beam member 22 (A3) (the surface facing the first beam member 21), the bottom surface of the third beam member 23 (A3) (the surface facing the floor), and the left side of the fourth beam member 24 (A3) (the surface facing the third beam member 23).

[0040] The number of air outlets 31 provided on each column member 11-14 and each beam member 21-24 can be appropriately set according to the size of the area and the purpose of the design. For example, 5 to 30 air outlets 31 can be provided on one column member or one beam member, preferably 8 to 20, and particularly preferably 10 to 15. It is preferable that the air outlets 31 are arranged at approximately equal intervals along the longitudinal direction of the column member or beam member. However, the spacing of the air outlets 31 does not need to be uniform, and they can be arranged unevenly as needed.

[0041] In this embodiment, each outlet 31 has a nozzle-type structure. Specifically, a variable-direction nozzle type outlet is preferred for the outlet 31. The opening diameter of the outlet 31 can be, for example, 5 cm to 50 cm, preferably 10 cm to 40 cm, and particularly preferably 20 cm to 30 cm. The outlet 31 is configured to allow electronic control of the airflow direction. Specifically, each outlet 31 is equipped with a variable-direction nozzle, and the airflow direction can be adjusted by changing the orientation of this nozzle using a drive mechanism such as a servo motor. For example, multiple louvers or movable nozzles are provided inside the outlet 31, and by driving these with a servo motor, the airflow direction can be adjusted up, down, left, and right. The adjustment range of the airflow direction by the outlet 31 can be adjusted, for example, within a range of ±30 degrees to ±90 degrees up, down, left, and right with respect to the central axis of the nozzle. The variable-direction nozzle has a structure in which a nozzle body with a circular outlet is supported by a ball joint mechanism or gimbal mechanism so as to be rotatable around multiple axes. By changing the orientation of this nozzle body with a drive mechanism such as a servo motor, the orientation of the entire nozzle can be adjusted up, down, left, and right, and the direction of airflow can be controlled. By driving the motor based on a control signal from the control device 80 described later, the orientation of the nozzle can be precisely controlled, and air can be blown out in the desired direction.

[0042] Furthermore, each outlet 31 may be configured to allow individual control of the amount of air discharged. For example, by providing a damper or electric valve for adjusting the airflow rate corresponding to each outlet 31, it is possible to adjust the airflow rate for each outlet 31. In this way, by individually controlling the airflow direction and airflow rate of each outlet 31, a desired airflow pattern can be formed within the compartment. For example, each outlet 31 may be provided with an exhaust damper 33 (not shown, see Figure 5). The exhaust damper is a movable valve body located in a duct connected to the outlet 31, and the airflow rate from the outlet 31 can be controlled by adjusting the opening degree of the valve body with an electric motor or electric actuator. The opening degree of the exhaust damper 33 is adjusted based on a control signal from the control device 80, which will be described later, making it possible to individually control the airflow rate from each outlet 31.

[0043] The airflow control system 100 includes a blower 32 that supplies air (preferably compressed air) to the outlets 31. The blower 32 is a fan or blower that pressurizes the air it draws in and sends it to each outlet 31. There may be only one blower 32 or there may be multiple blowers 32. For example, one large blower 32 can be provided for multiple outlets 31, and air can be supplied to each outlet 31 via ducts branched from this blower 32. Alternatively, a blower 32 can be provided for each group of outlets 31 (for example, each section), and each blower 32 can be configured to supply air to the outlet 31 it is responsible for. It is also possible to provide an individual blower 32 for each outlet 31.

[0044] The location of the air blower 32 is not particularly limited. For example, the air blower 32 can be installed in the ceiling space of a room including the performance space. Alternatively, the air blower 32 can be installed behind a wall, under a floor, or in a separate room, and supplied to each outlet 31 via a duct. Furthermore, the air blower 32 can be installed inside the column members 11-14 or beam members 21-24. The location of the air blower 32 can be appropriately selected according to the installation space and performance requirements. The air blower 32 and each outlet 31 are connected by a duct. The duct is a metal or resin pipe, and can also be a flexible duct.

[0045] The blower 32 is controlled by a control device 80, which will be described later. The control device 80 can turn the blower 32 on and off, and control the amount of air blown by the blower 32. For example, by using a variable-speed motor in the blower 32, the amount of air blown can be adjusted by changing the rotation speed of the motor. In addition, by individually controlling the amount of air blown from each outlet 31 using the exhaust damper 33, it is possible to adjust the actual amount of air blown from each outlet 31 while keeping the amount of air blown from the blower 32 constant.

[0046] The airflow control system 100 includes a first wall section 41 and a second wall section 42. The first wall section 41 and the second wall section 42 are provided to close both ends of a plurality of compartments when these compartments are provided adjacent to each other in the extending direction (X direction) of the first beam member 21 and the second beam member 22. In the example shown in Figure 1, the first wall section 41 is provided in compartment A1, which is located at one end in the X direction of the three compartments A1, A2, and A3. Specifically, the first wall section 41 is provided in compartment A1 so as to close the space between the first column member 11 (A1) and the third column member 13 (A1). On the other hand, the second wall section 42 is provided in compartment A3, which is located at the opposite end in the X direction of the three compartments A1, A2, and A3. Specifically, the second wall section 42 is provided in section A3 so as to block the space between the second column member 12 (A3) and the fourth column member 14 (A3).

[0047] Although not shown in Figure 1, walls are also provided between other column members, except for the entrance area where spectators enter and exit. For example, in section A1, walls are provided between the second column member 12(A1) and the fourth column member 14(A1), and between the third column member 13(A1) and the fourth column member 14(A1). Similarly, in section A2, walls are provided between the first column member 11(A2) and the second column member 12(A2), and between the third column member 13(A2) and the fourth column member 14(A2). Furthermore, in section A3, walls are provided between the first column member 11(A3) and the second column member 12(A3), and between the third column member 13(A3) and the fourth column member 14(A3). In practice, to prevent air from leaking from above, a ceiling-like section, specifically a top surface, is also formed between each beam member.

[0048] The wall section, including the first wall section 41 and the second wall section 42, serves to prevent the airflow within the compartment from flowing out from the edges to the outside. This makes it possible to maintain a more stable lateral swirling flow that penetrates multiple compartments A1, A2, and A3. Each wall section is a plate-like member and can be formed from metal, wood, resin, cloth, or a combination thereof. Each wall section does not need to be completely airtight and can be configured to allow a certain degree of air leakage. The size of the first wall section 41 and the second wall section 42 is approximately the same as the cross-section of the compartment, for example, the width and height can be 1m to 5m, respectively.

[0049] The airflow control system 100 is equipped with a plurality of intake ports 51. In the example shown in Figure 1, the intake ports 51 are provided in the first wall section 41 and the second wall section 42, respectively. In the example shown in Figure 1, the first wall section 41 is provided with a plurality of intake ports 51, and the second wall section 42 is also provided with a plurality of intake ports 51. Each intake port 51 opens onto the surface of the wall section, and air from within the compartment can be drawn in through this opening. The shape of the intake port 51 can be circular, rectangular, or other shapes. The opening diameter or opening area of ​​the intake port 51 can be, for example, 20 cm to 100 cm in diameter, or 400 cm in area. 2 ~10,000cm 2 It can be done this way.

[0050] Each intake port 51 can be provided with an intake damper 53 (not shown, see Figure 5). The intake damper 53 is a movable valve body located in a duct connected to the intake port 51, and the amount of air drawn in from the intake port 51 can be controlled by adjusting the opening of the valve body with an electric motor or electric actuator. The opening of the intake damper 53 is adjusted based on a control signal from the control device 80, making it possible to individually control the amount of air drawn in from each intake port 51. For example, when drawing in air from the intake port 51 of the first wall portion 41, the intake damper 53 provided at the intake port 51 of the second wall portion 42 can be closed to stop the drawing in of air from the second wall portion 42.

[0051] A grill or guard may be provided at the intake port 51 to prevent airborne particles F from being sucked in. The grill has a structure in which multiple thin rod-shaped members are combined in a grid pattern and is positioned to cover the opening of the intake port 51. The spacing of the grill's grid is set to be smaller than the size of the airborne particles F, thereby preventing the airborne particles F from passing through the grill and being sucked into the intake port 51. On the other hand, air is drawn into the intake port 51 by passing through the grid of the grill, so the air suction function is maintained. The spacing of the grill's grid can be, for example, 1 cm to 10 cm, preferably 2 cm to 5 cm. Details of the grill are disclosed in, for example, Japanese Patent Application Publication No. 2025-083655. Alternatively, a metal grid-like guard may be attached to the intake port 51 in place of or in addition to the grill. The guard has a coarser grid structure than the grill and is provided to protrude three-dimensionally from the intake port 51. By installing such a guard along with the grille, it is possible to prevent airborne particles F from blocking the holes in the grille and maintain the efficiency of air intake.

[0052] The airflow control system 100 includes an intake device 52 that draws in air through the intake port 51. The intake device 52 is a suction device including a fan or blower that draws in air from the intake port 51 and discharges it to the outside. There may be only one intake device 52 or there may be multiple intake devices. For example, one large intake device 52 can be provided for multiple intake ports 51, and air can be drawn in from each intake port 51 via a duct connected to this intake device 52. Alternatively, separate intake devices 52 can be provided for the intake ports 51 of the first wall section 41 and for the intake ports 51 of the second wall section 42.

[0053] The location of the intake device 52 is not particularly limited, similar to that of the blower device 32. For example, the intake device 52 can be installed in the ceiling space of a room including the performance space, in another room, or under the floor. The intake device 52 and each intake port 51 are connected by a duct. The duct is a metal or resin pipe and can also be a flexible duct. The air drawn in by the intake device 52 may be discharged outdoors via the duct, or it may be sent to the blower device 32 for reuse.

[0054] The intake device 52 is controlled by the control device 80. The control device 80 can turn the intake device 52 on and off, and control the amount of air drawn in by the intake device 52. For example, by using a variable-speed motor in the intake device 52, the amount of air drawn in can be adjusted by changing the rotation speed of the motor. In addition, by individually controlling the amount of air drawn in from each inlet 51 using the intake damper 53 described above, it is possible to adjust the actual amount of air drawn in from each inlet 51 while keeping the amount of air drawn in by the intake device 52 constant. In this way, by individually controlling the amount of air drawn in from the inlet 51 of the first wall section 41 and the inlet 51 of the second wall section 42, it is possible to give direction to the lateral rotating flow or change the direction of the rotating flow.

[0055] Next, with reference to Figure 2, the direction of air discharge from the outlet 31 for generating a lateral rotational flow will be explained. Figure 2 is a perspective view showing section A2, the central section of the three sections A1, A2, and A3. Figure 2 shows the column members 11-14 and beam members 21-24 surrounding section A2, and the outlets 31 provided on them. Also in Figure 2, the direction of air discharged from each outlet 31 is indicated by arrows. The airflow control system 100 according to the present invention can generate a lateral rotational flow that rotates around an axis extending in the extending direction (X direction) of the first beam member 21 and the second beam member 22 by discharging air from each outlet 31 in an appropriate direction.

[0056] In the example shown in Figure 2, air is blown out diagonally upward from the air outlets 31 of the first column member 11, the second column member 12, and the first beam member 21, which are located on the near side of the drawing. Specifically, the air from these air outlets 31 is blown inward and upward towards the inside of section A2. On the other hand, air is blown out diagonally downward from the air outlets 31 of the third column member 13, the fourth column member 14, and the second beam member 22, which are located on the far side of the drawing. Specifically, the air from these air outlets 31 is blown inward and downward towards the inside of section A2. In addition, the air outlets 31 of the third beam member 23 and the fourth beam member 24 are provided on the underside of their respective beam members, and air is blown out diagonally downward from these air outlets 31.

[0057] By setting the direction of airflow from each outlet 31 in this way, a lateral rotational flow is generated within section A2. Specifically, the air blown diagonally upward from the outlet 31 on the near side of the drawing flows through the top of section A2 towards the far side of the drawing. This air merges with the air blown diagonally downward from the outlet 31 on the far side of the drawing and returns to the near side of the drawing through the bottom of section A2. In this way, a lateral rotational flow is formed within section A2, rotating around a horizontal axis extending in the direction of extension (X direction) of the first beam member 21 and the second beam member 22. When viewed in the front-to-back direction (Y direction) of section A2, this lateral rotational flow becomes an airflow that rotates in an elliptical or circular trajectory.

[0058] The air outlet angles from each outlet 31 should be optimized to efficiently generate a lateral rotational flow. For example, the air outlet angle from the outlet 31 on the near side of the drawing is preferably inclined upward in the range of 15 to 60 degrees relative to the horizontal plane, and particularly preferably 30 to 45 degrees. Similarly, the air outlet angle from the outlet 31 on the far side of the drawing is preferably inclined downward in the range of 15 to 60 degrees relative to the horizontal plane, and particularly preferably 30 to 45 degrees. These angles can be adjusted as appropriate depending on the size of the compartment and the characteristics of the floating matter F.

[0059] Figure 3 is a schematic perspective view showing a state in which a lateral rotational flow has been generated. In Figure 3, the lateral rotational flow formed to penetrate the three sections A1, A2, and A3 is indicated by a curved arrow. As mentioned above, by blowing air in the appropriate direction from each outlet 31, a lateral rotational flow that rotates around a horizontal axis extending in the direction of extension (X direction) of the first beam member 21 and the second beam member 22 can be generated. In the example shown in Figure 3, the suction from the intake port 51 of the first wall section 41 is stopped, and air is drawn in from the intake port 51 of the second wall section 42. As a result, the lateral rotational flow is formed with a directionality from section A1 to section A3. In other words, the suction from the intake port 51 of the second wall section 42 causes the entire rotational flow to move from section A1 to section A3 (along the X direction). Therefore, the rotational flow passes through sections A1, A2, and A3 sequentially while drawing a spiral trajectory. Conversely, by drawing air in from the intake port 51 of the first wall section 41 and stopping the suction from the intake port 51 of the second wall section 42, the direction of the rotating flow can be reversed, creating a flow from section A3 to section A1. Furthermore, by drawing air equally from the intake ports 51 of both the first wall section 41 and the second wall section 42, it is also possible to keep the lateral rotating flow in place.

[0060] The rotational speed and movement speed of the lateral rotating flow can be controlled by adjusting the airflow from each outlet 31 and the suction volume from each inlet 51. For example, increasing the airflow from each outlet 31 can increase the rotational speed of the rotating flow. Also, increasing the suction volume from the inlet 51 of the second wall 42 can increase the movement speed of the rotating flow. The rotational speed and movement speed of the rotating flow can be set appropriately according to the size and weight of the floating object F and the purpose of the performance.

[0061] Figure 4 is a schematic perspective view showing a state in which multiple floating objects F and spectators O are arranged in three sections A1, A2, and A3. As shown in Figure 4, multiple floating objects F are arranged in each section, and these floating objects F rotate within the section on the aforementioned lateral rotational flow. Spectators O can enter the sections and experience the floating objects F rotating around them up close. In this way, the airflow control system 100 according to the present invention can provide an experiential performance in which spectators O can enter the performance space together with the floating objects F. For example, due to the lateral rotational flow, the floating objects F rotate horizontally at around the eye level of the spectators O, so the spectators O can observe the movement of the floating objects F up close. Also, since the floating objects F are lightweight, it is safe even if spectators O touch them.

[0062] The floating object F is a lightweight object capable of floating in the air. In this embodiment, the floating object F has a spherical structure and is configured so that gas is enclosed by a flexible outer membrane. The outer membrane of the floating object F is formed of a thin film-like material, which can be made of, for example, polyethylene, polypropylene, polyester, nylon, or a combination thereof. In particular, in this embodiment, the outer membrane of the floating object F is formed of a silver film with a reflective surface. This allows it to reflect light from the lighting device 70, which will be described later, and create a visually attractive effect.

[0063] The floating object F is filled with a mixture of helium and air. The ratio of helium to air is adjusted so that the floating object F has neutral buoyancy in the air. Neutral buoyancy means that the floating object F does not rise or fall in the air, but remains in place. For example, the ratio of helium to air can be 60% to 80% helium and 20% to 40% air, preferably 65% ​​to 75% helium and 25% to 35% air. This ratio is adjusted as appropriate depending on the weight of the outer membrane and the size of the floating object F. The floating object F, having neutral buoyancy, can easily rotate by riding a lateral swirling flow.

[0064] The size of the floating objects F can be set appropriately according to the purpose of the performance and the size of the section. For example, the diameter of the floating objects F can be 10 cm to 2 m, preferably 20 cm to 1 m, and particularly preferably 30 cm to 60 cm. The number of floating objects F placed in each section can also be set appropriately according to the purpose of the performance. For example, 5 to 100 floating objects F can be placed in one section, and the number is not particularly limited. By placing multiple floating objects F, the audience O can be shown the appearance of them swirling together on a lateral rotational current.

[0065] While an example of using a spherical object as the floating object F has been shown, the shape of the floating object F is not limited to this. For example, floating objects F can be of various shapes, such as cubes, polyhedra, ellipsoids, discs, rings, stars, or shapes that resemble animals or plants. Furthermore, the material and size of the floating object F can be appropriately changed according to the purpose of the performance. In addition, it is possible to incorporate lighting fixtures such as LEDs and speakers inside the floating object F to combine it with light and sound effects.

[0066] The airflow control system 100 further includes object detection sensors 60 for detecting spectators O or floating objects F within the area. As shown in Figure 4, the object detection sensors 60 are positioned at appropriate locations around the area, such as near the top, near the column members 11-14, or near the walls. Examples of object detection sensors 60 include optical sensors and image sensors. As optical sensors, it is particularly preferable to use TOF (Time Of Flight) sensors. TOF sensors emit pulsed laser light, such as infrared light, from a light-emitting element and measure the time it takes for this laser light to reflect off an object (spectator O or floating object F) and return to the light-receiving element. This allows for the acquisition of the distance from the sensor to the object and the coordinate information of the object within the performance space. Image sensors can capture images of the area using a camera and detect the position and movement of spectators O or floating objects F through image analysis. Object detection sensors 60 may be provided one per area, or multiple sensors may be provided per area.

[0067] The detection information obtained by the object detection sensor 60 is transmitted to the control device 80, which will be described later. Based on the detection information from the object detection sensor 60, the control device 80 can determine the position, movement, and distribution of spectators O or floating objects F within the area. Based on this detection information, the control device 80 can control the airflow direction of the blower 32, intake 52, and outlet 31, as well as the exhaust damper 33 and intake damper 53. For example, if floating objects F are unevenly distributed in a specific location within the area, the control device 80 can adjust the airflow of the blower 32 and the airflow direction of the outlet 31 to ensure a uniform distribution of floating objects F. Furthermore, when spectators O enter the area, the control device 80 can reduce the airflow of the blower 32 to ensure safety, or conversely, increase the airflow to enhance the sense of realism.

[0068] Figure 5 is a block diagram showing the configuration of the control system of the airflow control system 100. As shown in Figure 5, the airflow control system 100 has a configuration in which various devices are connected to a control device 80. For example, the control device 80 controls the blower 32, intake device 52, exhaust damper 33, intake damper 53, outlet 31 (variable airflow nozzle), and lighting device 70. The control device 80 also receives detection information from the object detection sensor 60 and can control each element based on this detection information.

[0069] The control device 80 can be configured as a known computer equipped with a processing unit (CPU), memory, input / output interfaces, etc. The memory of the control device 80 stores a control program for controlling the airflow control system 100. The processing unit of the control device 80 analyzes the detection information from the object detection sensor 60 by executing this control program and generates control signals for each device. The control device 80 is connected to each device via a wired or wireless communication line. The control device 80 may be configured as a single computer or as a distributed processing system combining multiple computers.

[0070] The control device 80 performs normal operation control to generate a lateral or longitudinal rotatable flow based on a preset control pattern. The control for generating a lateral rotatable flow is as described above. Furthermore, when generating a longitudinal rotatable flow, as described later, the control device 80 changes the airflow direction of each outlet 31 to control the system so that a clockwise or counterclockwise airflow is generated in a plan view. In this way, the control device 80 can switch the operation of each device according to the type of rotatable flow to be generated.

[0071] Based on detection information received from the object detection sensor 60, the control device 80 can grasp the position, movement, and distribution of spectators O or floating objects F within the area in real time. Based on this information, the control device 80 controls each device to ensure that the lateral rotational flow is properly maintained. For example, the control device 80 sends on / off commands and airflow adjustment commands to the blower 32. The control device 80 also sends on / off commands and suction volume adjustment commands to the intake device 52. Furthermore, the control device 80 sends airflow direction adjustment commands to the variable-direction nozzles provided at each outlet 31, individually controlling the direction of airflow from each outlet 31. Similarly, the control device 80 sends opening adjustment commands to the exhaust damper 33 and intake damper 53, individually controlling the airflow from each outlet 31 and the suction volume from each inlet 51.

[0072] Next, an example of a control method by the control device 80 will be described. The control device 80 monitors the distribution of floating objects F based on detection information from the object detection sensor 60. If the floating objects F are unevenly distributed in a particular location within the compartment, the control device 80 adjusts the airflow direction and volume of a specific outlet 31 so that the distribution of floating objects F becomes uniform. For example, if the floating objects F are concentrated in the upper part of the compartment, the airflow volume from the outlet 31 at the back of the diagram can be increased to move the floating objects F downwards. Also, if the floating objects F are unevenly distributed towards the front of the compartment, the airflow volume from the outlet 31 at the front of the diagram can be decreased, or the airflow volume from the outlet 31 at the back of the diagram can be increased to move the floating objects F to the vicinity of the center of the compartment.

[0073] It is also possible to use artificial intelligence technology to train the control device to learn the optimal control pattern through machine learning. For example, the control device 80 can perform control processing using machine learning such as artificial neural networks (deep learning, etc.) or reinforcement learning. Specifically, deep learning can be performed using a dataset of control parameters such as the airflow rate and direction from each outlet 31 and the suction amount from each inlet 51, along with the changes in the behavior of the floating objects F due to that control, as training data, and the resulting trained model can be used for control processing. Furthermore, when implementing reinforcement learning, optimal control can be achieved by rewarding environments where the floating objects F are appropriately distributed and punishing environments where the floating objects F are attached to the floor or ceiling or are extremely unevenly distributed. In this way, the behavior of the floating objects F can be efficiently optimized by utilizing machine learning.

[0074] The control device 80 also controls the lighting device 70. The lighting device 70 is a device for illuminating floating objects F and spectators O within the area. Examples of lighting devices 70 include LED lights, spotlights, and moving lights. The control device 80 transmits commands to the lighting device 70 to control the on / off state, light intensity, light color, and irradiation direction. The control device 80 may also control the irradiation direction of the lighting device 70 according to the position of the floating objects F based on detection information from the object detection sensor 60. For example, by constantly illuminating moving floating objects F, a visually appealing effect can be provided.

[0075] Figure 6 is a perspective view showing an example of an airflow control system 100 having a 3x3 grid in the planar direction. A plan view is also shown in the upper left of Figure 6 for easier understanding. As shown in Figure 6, three grids are arranged in the extending direction (X direction) of the first beam member 21 and the second beam member 22, and three grids are also arranged in the extending direction (Y direction) of the third beam member 23 and the fourth beam member 24. As a result, a total of nine grids A1, A2, A3, A4, A5, A6, A7, A8, and A9 are arranged in the planar direction. Each grid is surrounded by four column members and four beam members, as described in Figure 1 above.

[0076] In the configuration shown in Figure 6, multiple lateral rotational flows extending in the X direction can be formed. For example, a first lateral rotational flow can be formed that penetrates sections A1, A2, and A3. Similarly, a second lateral rotational flow can be formed that penetrates sections A4, A5, and A6, and a third lateral rotational flow can be formed that penetrates sections A7, A8, and A9. These rotational flows can be controlled independently or synchronously.

[0077] Furthermore, in the configuration shown in Figure 6, it is also possible to form a lateral rotational flow extending in the Y direction. For example, a lateral rotational flow can be formed that penetrates sections A1, A4, and A7. In this case, a lateral rotational flow is formed that rotates around an axis extending in the direction of extension (Y direction) of the third beam member 23 and the fourth beam member 24. Similarly, it is also possible to form a rotational flow that penetrates sections A2, A5, and A8, or a rotational flow that penetrates sections A3, A6, and A9. In this way, the ability to form lateral rotational flows in both the X and Y directions greatly improves the versatility of the performance.

[0078] Figure 6 also shows the entrances for spectators to enter and exit. In this embodiment, the entrances are located in section A1. Through these entrances, spectators O can enter the performance space. Figure 6 also shows the first wall section 41, the second wall section 42, the third wall section 43, and the fourth wall section 44. As mentioned above, the first wall section 41 and the second wall section 42 are located in the sections at both ends in the X direction. Similarly, the third wall section 43 and the fourth wall section 44 are located in the sections at both ends in the Y direction. These walls prevent airflow within the sections from leaking to the outside and allow for more stable maintenance of the lateral rotational flow. Each wall section is provided with the aforementioned intake ports 51. The intake ports 51 of the first wall section 41 and the second wall section 42 are used to form a lateral rotational flow extending in the X direction. Similarly, the intake ports 51 of the third wall section 43 and the fourth wall section 44 are used to form a lateral rotational flow extending in the Y direction. By controlling the amount of suction from these suction ports 51, the direction and strength of the rotating flow can be adjusted.

[0079] Figure 7 is a schematic perspective view showing a configuration for generating a vertical rotational flow. As shown in Figure 7, in this embodiment, the compartments are arranged in two layers in the vertical direction (Z direction). The first layer (lower layer) is indicated by the symbol A, and the second layer (upper layer) is indicated by the symbol B. Figure 7 shows, as an example, the first layer compartment A2 and the second layer compartment B2. By arranging the compartments in multiple layers in the vertical direction in this way, it becomes possible to generate not only a horizontal rotational flow but also a vertical rotational flow that rotates clockwise or counterclockwise in a plan view.

[0080] In the configuration shown in Figure 7, the first-level compartment A2 has a floor surface 91, and the second-level compartment B2 has a top surface 92. The floor surface 91 is located at the bottom of the first-level compartment A2, and the top surface 92 is located at the top of the second-level compartment B2. There is no partition between the top surface of the first-level compartment A2 and the bottom surface of the second-level compartment B2, and the upper and lower compartments are in communication. Therefore, the airflow generated in the first-level compartment A2 can flow directly into the second-level compartment B2. The floor surface 91 and the top surface 92 can be formed from plate-like members, and can be made from metal, wood, resin, or a combination thereof.

[0081] When generating a vertical rotational flow, an intake port 51 is provided on at least one of the floor surface 91 and the top surface 92. In the example shown in Figure 7, intake ports 51 are provided on both the floor surface 91 of the first-stage compartment A2 and the top surface 92 of the second-stage compartment B2. These intake ports 51 have the same structure as the intake ports 51 provided on the first wall portion 41, etc., as described above, and are connected to the intake device 52. In particular, by drawing air in from the intake port 51 on the top surface 92, a tornado-shaped upward airflow can be formed within the compartment. This upward airflow starts from the first-stage compartment A2, flows continuously through the connecting section between the upper and lower compartments to the second-stage compartment B2, and is finally drawn into the intake port 51 on the top surface 92. In this way, because the upper and lower compartments are connected, a long tornado-shaped upward airflow spanning multiple stages can be formed.

[0082] Figure 8 is a schematic perspective view showing the direction of airflow from the outlets 31 to generate a vertical rotational flow. When generating a vertical rotational flow, the airflow direction of each outlet 31 is set to a different direction from that of the horizontal rotational flow. Specifically, as shown in Figure 8, the airflow direction of each outlet 31 is adjusted so that an airflow clockwise or counterclockwise is generated from the outlets 31 provided on the column members 11-14 and beam members 21-24 in a plan view. By switching the airflow direction of the outlets 31 in this way, horizontal and vertical rotational flows can be selectively generated in the same airflow control system 100.

[0083] Figure 8 shows section A2 as an example. As shown in Figure 8, when generating a vertical rotational flow, the direction of air discharge from each outlet 31 is set so that a clockwise or counterclockwise airflow is formed in a plan view. Specifically, in the case of a clockwise flow, air is discharged from the outlet 31 of the first column member 11 toward the third column member 13, from the outlet 31 of the second column member 12 toward the first column member 11, from the outlet 31 of the third column member 13 toward the fourth column member 14, and from the outlet 31 of the fourth column member 14 toward the second column member 12. In addition, air is discharged from the outlets 31 of the beam members 21 to 24 so as to form a rotational flow in a plan view. For example, air is blown out from the outlet 31 of the first beam member 21 toward the third beam member 23, and air is blown out from the outlet 31 of the second beam member 22 toward the fourth beam member 24. Similarly, air is blown out from the outlets 31 of the third beam member 23 and the fourth beam member 24 in a manner that contributes to the formation of a swirling flow. By adjusting the direction of the airflow from each outlet 31 in this way, a swirling airflow can be formed within the compartment in a clockwise or counterclockwise direction in plan view. In the case of a counterclockwise flow, the direction should be reversed.

[0084] Figure 9 is a schematic perspective view showing a state in which a vertical rotational flow is generated. Figure 9 shows how a vertical rotational flow is formed in two compartments. As shown in Figure 9, a vortex-shaped airflow that rotates in a plan view is formed within each compartment. At the same time, an updraft is generated within the compartment by drawing air in from the intake port 51 on the top surface 92. As a result, a vertical rotational flow accompanied by a tornado-like updraft is formed within the compartment. Due to this vertical rotational flow, the floating object F rises while rotating around a vertical axis.

[0085] The vertical rotational flow is similar to the rotational flow used in conventional technology, but the airflow control system 100 according to the present invention can switch between it and the horizontal rotational flow described above. Specifically, the control device 80 controls the variable-direction nozzles of each outlet 31 to change the airflow direction, thereby switching from a horizontal rotational flow to a vertical rotational flow, or from a vertical rotational flow to a horizontal rotational flow. In addition, by adjusting the amount of suction from the intake ports 51 on the floor 91 and the ceiling 92, the strength of the upward airflow can be controlled, and the vertical movement of the airborne objects F can be adjusted. In this way, the airflow control system 100 according to the present invention can generate both horizontal and vertical rotational flows, greatly improving the versatility of the effects.

[0086] Figure 10 is a perspective view showing an example of an airflow control system 100 with two levels, upper and lower, each level having a 3x3 grid of compartments. In Figure 10, the top surface is partially omitted to show the internal structure of the system. As shown in Figure 10, nine compartments A1 to A9 are arranged planarly in the first level (lower level), and nine compartments B1 to B9 are also arranged planarly in the second level (upper level). This creates a large-scale airflow control system 100 with a total of 18 compartments arranged three-dimensionally. The configuration of each level is the same as the 3x3 compartment arrangement shown in Figure 6 above.

[0087] The configuration shown in Figure 10 makes it possible to form lateral rotational flows, longitudinal rotational flows, and complex airflow patterns combining these over a wide spatial range. For example, lateral rotational flows passing through sections A1, A2, and A3 of the first stage and lateral rotational flows passing through sections B1, B2, and B3 of the second stage can be formed simultaneously or independently. Longitudinal rotational flows can also be generated at each stage. Furthermore, it is possible to generate different types of rotational flows simultaneously, such as forming lateral rotational flows in the first stage and longitudinal rotational flows in the second stage.

[0088] By arranging the sections in three dimensions in this way, diverse and large-scale productions can be realized. By controlling multiple sections independently, different productions can be implemented simultaneously in each section. Furthermore, by controlling all sections in coordination, a unified and large-scale production can be achieved. The configuration shown in Figure 10 can provide an immersive visual experience to audiences in large-scale production facilities and theme parks.

[0089] In the above embodiment, an example was shown in which the compartments were arranged in a 3x3 grid in the planar direction and in two rows vertically, but the number and arrangement of compartments are not limited to this. The compartments can also be arranged in a 2x2, 4x4, 5x5, or more grid in the planar direction, or in three, four, or more rows vertically. It is also possible to arrange the compartments in only one column in the planar direction (for example, three in the X direction and one in the Y direction).

[0090] In this specification, embodiments of the present invention have been described with reference to the drawings in order to express the content of the present invention. However, the present invention is not limited to the above embodiments, and includes modifications and improvements that are obvious to those skilled in the art based on the matters described in this specification. [Explanation of Symbols]

[0091] 11...First pillar member 12...Second pillar member 13...Third pillar member 14...Fourth pillar member 21...First beam member 22...Second beam member 23...Third beam member 24...Fourth beam member 31...Air outlet 32...Blower device 33... Exhaust damper 41... First wall section 42...Second wall part 43...Third wall part 44...Fourth wall section 51...Inlet 52... Intake system 53... Intake damper 60...Object detection sensor 70...Lighting device 80...Control device 91...Floor surface 92...Top surface 100...Airflow control system A1-A9... Sections (1st tier) B1-B9... Sections (2nd tier) F...Floating objects O...Spectators

Claims

1. At least four column members, including a first column member (11), a second column member (12), a third column member (13), and a fourth column member (14), are provided to surround a certain section. A first beam member (21) connects adjacent first column members (11) and second column members (12) among the column members, A second beam member (22) is arranged substantially parallel to the first beam member (21) and connects the adjacent third column member (13) and the fourth column member (14) among the column members, Multiple outlets (31) are provided on each of the column member, the first beam member (21), and the second beam member (22), The system includes a blower (32) that supplies air to the outlet (31), The system is configured to allow air to be blown out from multiple outlets (31) in such a manner that it rotates around an axis that extends parallel to the first beam member (21) and the second beam member (22) and crosses the compartment, thereby generating a rotational flow that causes floating objects within the compartment to rotate 360 ​​degrees around the axis. Airflow control system.

2. A third beam member (23) is arranged in a direction substantially perpendicular to the first beam member (21) and the second beam member (22), and connects the first column member (11) and the third column member (13), The system further comprises a fourth beam member (24) which is arranged substantially parallel to the third beam member (23) and connects the second column member (12) and the fourth column member (14), Multiple air outlets (31) are also provided on the third beam member (23) and the fourth beam member (24). The airflow control system according to claim 1.

3. The area enclosed by the at least four column members, the first beam member (21), and the second beam member (22) is provided adjacent to multiple locations in the direction of extension of the first beam member (21) and the second beam member (22). The airflow control system according to claim 1.

4. Among the multiple compartments, a first wall portion (41) is provided in the compartment located at one end of the extending direction of the first beam member (21) and the second beam member (22) so as to close the space between the first column member (11) and the third column member (13), Among the multiple sections, a second wall section (42) is provided in the section located at the opposite ends in the extending direction of the first beam member (21) and the second beam member (22) so as to close the space between the second column member (12) and the fourth column member (14), Multiple suction ports (51) are provided in each of the first wall portion (41) and the second wall portion (42), The system further includes an intake device (52) that draws in air through the aforementioned intake port (51). The airflow control system according to claim 3.

5. An object detection sensor (60) for detecting spectators or floating objects within the aforementioned area, The device (80) further comprises a control device that receives detection information from the object detection sensor, The control device (80) controls the blower (32) based on the detection information. The airflow control system according to claim 1.

6. The aforementioned air outlet (31) is configured to allow electronic control of the direction of air discharge. The airflow control system according to claim 1.

7. An object detection sensor (60) that detects spectators or floating objects within the aforementioned area, The device (80) further comprises a control device that receives detection information from the object detection sensor, The control device (80) controls the direction of air discharge from the outlet (31) based on the detection information. The airflow control system according to claim 1.

8. The section enclosed by the at least four column members, the first beam member (21), and the second beam member (22) is provided adjacent to multiple locations in the direction of extension of the first beam member (21) and the second beam member (22), and is also provided adjacent to multiple locations in the direction of extension of the third beam member (23) and the fourth beam member (24). The airflow control system according to claim 2.

9. The aforementioned air outlet (31) is configured to allow electronic control of the direction of air discharge. The compartments enclosed by the at least four column members, the first beam member (21), and the second beam member (22) are arranged in multiple layers stacked vertically. The system is configured to allow switching the direction in which air is blown out from multiple outlets (31) so as to generate a clockwise or counterclockwise rotational flow in a plan view. The airflow control system according to claim 2.

10. A suction port (51) is provided on at least one of the floor surface (91) and the top surface (92) of the compartment, The system further includes an intake device (52) that draws in air through the aforementioned intake port (51). The airflow control system according to claim 9.

11. The section enclosed by the at least four column members, the first beam member (21), and the second beam member (22) is provided adjacent to multiple locations in the direction of extension of the first beam member (21) and the second beam member (22), and is also provided adjacent to multiple locations in the direction of extension of the third beam member (23) and the fourth beam member (24), and is stacked in multiple layers in the vertical direction. The airflow control system according to claim 2.

12. The airflow control system according to claim 1 includes the step of blowing air from a plurality of outlets (31) such that it rotates around an axis that extends parallel to the first beam member (21) and the second beam member (22) and crosses the compartment, and generates a rotational flow that causes airborne objects in the compartment to rotate 360 ​​degrees around the axis, Airflow control method.

13. The process includes arranging a plurality of floating objects in the aforementioned compartment and causing the floating objects to swirl within the compartment by the rotational flow, The airflow control method according to claim 12.

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