Patent Description:
Conventionally, as a device to perform a predetermined presentation using bubbles, there has been known, for example, a soap bubble illumination device disclosed in Patent Document <NUM> and a bubble projection mapping system disclosed in Patent Document <NUM>.

The soap bubble illumination device of Patent Document <NUM> includes a container that stores a soap liquid, soap bubble generating means for generating soap bubbles by blowing a gas to the soap liquid in the container, and a light source that irradiates the soap bubbles generated in the container with a light. Thus, in Patent Document <NUM>, by lighting the light source to irradiate the soap bubbles with the light, the light is diffused by the soap bubbles and a tender light is emitted, thereby allowing providing a visually beautiful atmosphere as a display.

The bubble projection mapping system of Patent Document <NUM> includes a bubble detecting device that detects at least one of a position and a range where a bubble body is present, and an image projecting device that projects an image on the detected bubble body. In this system, it is proposed to encourage children and the like to earnestly wash their hands by projecting, for example, a message encouraging washing fingers using the bubble body as a projection image.

<CIT> discloses an n array of parallel pipes, each having ports through which jet-like air streams exit, are arranged so that a peripherally directed air curtain is formed. The posts are shielded at both ends, and one end is provided with a chimney along a central axis of the air by which air or fluid is removed. By giving the air curtain a centrifugal force, a negative pressure is produced along a central core, and a spiral flow is produced, creating an artificial tornado.

<CIT> discloses A tornado generating system which includes fans which move air within the building <NUM> to create the tornado. Exhaust fans pull air upwardly through a bell mouth located near the top of the building, and centrally located in front of the viewing platform. The exhaust fans largely create upward vertical air movement, in the area below the bell mouth. Floor level circulating fans on the floor of the building, create circular air movement within the building, adjacent to the floor. Mezzanine level circulation fans similarly provide circular air movement at greater elevations above the floor within the building. Intake fans draw air tangentially into the building through air inlets, in the same counter clockwise direction (when viewed from above) as the air movement induced by the floor circulation fans.

<CIT> discloses a presentation system according to the preamble of claim <NUM>.

Now, the devices disclosed in Patent Document <NUM> and Patent Document <NUM> both assume to project the light and the image in the state where the bubbles are in contact with the container and the human fingers, and the characteristics of the bubble having a light mass and being floatable are not sufficiently utilized. Therefore, it is a main object of the present invention to provide innovative presentation system and presentation method that effectively use characteristics of a float body such as a bubble.

The invention relates to the presentation system of claim <NUM>. The presentation system according to the present invention includes a tornado fan and a supply device of a float body. The tornado fan is a system established to include a plurality of blowers. The tornado fan has a configuration in which each of the plurality of blowers blows air such that a clockwise or counterclockwise vortex air flow is generated in plan view in a presentation space surrounded by exhaust ports of the plurality of blowers. The number of the blowers included in the tornado fan only needs to be two or more, and three or more or four or more is preferable. For example, when the number of the blowers is two, the vortex air flow can be generated in the presentation space by disposing the exhaust ports such that the air discharged from the respective exhaust ports pass each other. For example, when the number of the blowers is four, the vortex air flow can be generated in the presentation space by disposing the exhaust ports of the blowers at four corners of the presentation space to discharge the air clockwise or counterclockwise from each exhaust port. The supply device supplies a float body in the presentation space in which the vortex air flow has been generated as described above. The "float body" is an object that floats on the air flow and has a property (temporariness) of disappearing over time (including becoming invisible to human). While examples of the float body include a bubble, a mist (fog), water vapor, a cloud, and a smoke, the float body is not limited to them. In the present invention, the supply device is especially preferably a bubble pump that supplies bubbles in the presentation space. Thus, in the present invention, a float body (for example, aggregate of bubbles) is formed in the proximity of the center of the presentation space by the vortex air flow. Floating the float body is also allowed.

The presentation system according to the present invention further includes one or a plurality of suction ports in an upper side of the presentation space, and the suction ports suction the air blown by each blower of the tornado fan. Thus, by disposing the suction port in the upper side of the presentation space, a tornado-like rising air flow can be generated in the presentation space. Accordingly, the floating state of the float body can be easily kept.

In the presentation system according to the present invention, each of air intake ports of the plurality of blowers is disposed at a peripheral area of the suction port. Thus, by disposing the air intake ports of the blowers at the peripheral area of the suction port in the upper side of the presentation space, approximately the whole amount of the air discharged from the exhaust ports of the blowers can be suctioned from the air intake ports of the blowers. Accordingly, since the air volume supplied in the presentation space is approximately the same as the air volume discharged from the presentation space, the float body is easily remained in the presentation space while keeping the floating state of the float body (for example, aggregate of bubbles).

The presentation system according to the present invention preferably further includes a ceiling fan. The ceiling fan includes an exhaust port disposed in an upper side of the presentation space, and blows the air from the exhaust port toward the suction port. Thus, by disposing the ceiling fan separately from the tornado fan and blowing air toward the suction port, the stability of the tornado-like rising air flow can be broken in the proximity of the suction port. Accordingly, suctioning the float body in the suction port can be suppressed.

The presentation system according to the present invention preferably further includes a floor fan. The floor fan includes an exhaust port in a proximity of a floor surface of the presentation space, and blow the air from the exhaust port in a direction along the floor surface. For example, the exhaust port of the floor fan is preferably disposed at a height within <NUM> from the floor surface. Thus, by disposing the floor fan separately from the tornado fan, grounding of the float body on the floor surface can be suppressed by the wind flowing along the floor surface. Accordingly, the floating state of the float body can be easily kept.

In the presentation system according to the present invention, the supply device may be a mist atomizer that supplies a mist in the presentation space. In this case, the mist can be treated as the float body. The above-described bubble pump and the mist atomizer can be used in combination. In this case, the mist is used to increase the humidity inside the presentation space. That is, by supplying the mist in the presentation space to increase the humidity inside the presentation space, the sustainability of the bubbles supplied from the bubble pump can be enhanced.

The presentation system according to the present invention preferably further includes a sensor and a controller. The sensor senses both or any one of a state of the presentation space and a state of the float body. An example of the sensor is an optical sensor (for example, TOF sensor) and a thermo-hygro sensor. The controller controls an air volume or a wind speed of the tornado fan based on detection information of the sensor. Thus, by perform a feedback control of the air volume or the wind speed of the tornado fan using the detection information of the sensor, the floating state of the float body can be easily kept. In the control of the tornado fan, the air volume or the wind speed of the tornado fan may be controlled by setting a specific condition or a threshold value to the state of the float body, or a known machine learning algorithm, such as a deep learning and a reinforcement learning, can be used.

The presentation system according to the present invention preferably further includes a projector that projects an image light on the float body (for example, bubble and its aggregate). Thus, by projecting the image light on the float body in the proximity of the center in the presentation space in real-time, an innovative video effect can be provided to audience.

The invention also relates to a presentation method according to claim <NUM>. The presentation method according to the present invention includes a step of blowing an air in a constant direction by each of a plurality of blowers such that a clockwise or counterclockwise vortex air flow is generated in plan view in a presentation space surrounded by exhaust ports of the plurality of blowers; and a step of supplying a float body in the presentation space.

According to the present invention, the innovative presentation system and presentation method sufficiently using the characteristics of the float body such as a bubble having a light mass and being floatable can be provided.

The following describes embodiments of the present invention using the drawings. The present invention is not limited to the configurations described below, but includes those appropriately changed from the configurations below by a person skilled in the art within an obvious range. In this application, contents of the present invention will be specifically described with a bubble presentation system as an example of a preferred embodiment of the present invention. However, the range of the present invention widely covers devices configured to supply a float body in a presentation space. An example of the float body is an object having a property (temporariness) of disappearing over time (including becoming invisible to human), such as a bubble, a mist (fog), water vapor, a cloud, and a smoke.

<FIG> is a perspective view illustrating an outline of a bubble presentation system <NUM>, and mainly illustrates an arrangement of devices each arranged in the vicinity of a ceiling (ceiling level) of a room in which the system is installed. It is not necessarily required to align all heights from a floor surface of the respective devices positioned at the ceiling level, and there is no problem even when the height positions are shifted up and down. <FIG> is a plan view illustrating the outline of the bubble presentation system <NUM>, and mainly illustrates the arrangement of the devices, and air discharge directions of respective fans. <FIG> is an exemplary configuration of a tornado fan <NUM> in the bubble presentation system <NUM>. The tornado fan <NUM> illustrated in <FIG> is basically disposed above the ceiling level illustrated in <FIG> and <FIG>, and therefore, not illustrated in <FIG> and <FIG>. The block diagram illustrated in <FIG> indicates the devices each included in the bubble presentation system <NUM> like a list. <FIG> illustrates an actual state where an aggregate of bubbles generated by the bubble presentation system <NUM> is floating in a presentation space.

The bubble presentation system <NUM> according to the present invention is basically configured to float the aggregate of bubbles in an indoor presentation space. The bubble presentation system <NUM> controls an air flow inside the presentation space by various kinds of fans such as the tornado fan <NUM>. It is preferred that the air flow inside the space is restricted by a wall, a partition, or an air shower, which are not illustrated, so as to avoid an air other than the air supplied by the various kinds of fans included in the bubble presentation system <NUM> from flowing in the presentation space. The presentation space has a degree of volume (lateral width, depth, and height) that allows a human to enter there. For example, the lateral width, the depth, and the height of the presentation space are each preferably at least <NUM> to <NUM> or more, and the volume larger than it also can be ensured.

As illustrated in <FIG>, in this embodiment, the presentation space is assumed to be a planar rectangular shape (especially, planar square shape), and air pillars <NUM> as pillars for discharging air are disposed upright at four corners in the presentation space. The four air pillars <NUM> include respective exhaust ports <NUM> of blowers <NUM> included in the tornado fan <NUM>, and the air blown by the blowers <NUM> is discharged from the exhaust ports <NUM> disposed at the air pillars <NUM>. As illustrated in <FIG>, four exhaust ports <NUM>(a) to <NUM>(d) disposed at the respective four air pillars <NUM> have the air discharge directions of the respective exhaust ports <NUM>(a) to <NUM>(d) set so as to generate a clockwise or clockwise vortex air flow in the presentation space in plan view. Specifically, in the example illustrated in <FIG>, the first exhaust port <NUM>(a) discharges the air in a direction toward the second exhaust port <NUM>(b), the second exhaust port <NUM>(b) discharges the air in a direction toward the third exhaust port <NUM>(c), the third exhaust port <NUM>(c) discharges the air in a direction toward the fourth exhaust port <NUM>(d), and the fourth exhaust port <NUM>(d) discharges the air in a direction toward the first exhaust port <NUM>(a). Obviously, the discharge directions of the respective exhaust ports <NUM>(a) to <NUM>(d) can be set to opposite directions of the directions illustrated in <FIG>. Thus, by setting the air discharge directions of the respective exhaust ports <NUM>(a) to <NUM>(d), the vortex air flow is generated in the presentation space.

A suction port <NUM> that suctions the air discharged from each exhaust port <NUM> is disposed above near the center of the presentation space. The suction port <NUM> is disposed in the proximity of the ceiling of the presentation space, and for example, only needs to have a height from the floor surface to the suction port <NUM> of <NUM> to <NUM>. As illustrated in <FIG>, in this embodiment, the exhaust ports <NUM> are disposed at middle portions of the respective air pillars <NUM>. For example, the heights from the floor surface to the respective exhaust ports <NUM> are <NUM> to <NUM> or more, and the positions are set to be lower than the above-described suction port <NUM> by <NUM> to <NUM> or more. Therefore, when the air discharged from each exhaust port <NUM> is suctioned by the suction port <NUM>, a tornado-like rising air flow can be generated in the presentation space surrounded by the exhaust ports <NUM>.

<FIG> illustrates a detailed structure of the tornado fan <NUM>. Components of the tornado fan <NUM> are basically arranged above the ceiling level illustrated in <FIG> and <FIG> excluding the above-described exhaust ports <NUM>. As illustrated in <FIG>, the tornado fan <NUM> is configured to include a plurality of blowers <NUM>. In this embodiment, since the air pillars <NUM> as pillars for discharging the air are disposed at four corners of the presentation space as described above, four blowers <NUM> are prepared as well. Flexible air intake duct <NUM> and exhaust duct <NUM> are connected to each blower <NUM>, the air intake duct <NUM> includes an air intake port <NUM>, and the exhaust duct <NUM> includes an exhaust port <NUM>. That is, the air suctioned from the air intake port <NUM> is supplied to the blower <NUM> via the air intake duct <NUM>. The blower <NUM> discharges the air suctioned from the air intake port <NUM> from the exhaust port <NUM> via the exhaust duct <NUM> by a rotation of a motor or the like. In this embodiment, first to fourth blowers <NUM>(a) to <NUM>(d) are configured to discharge the air from the above-described first to fourth exhaust ports <NUM>(a) to <NUM>(d), respectively.

As illustrated in <FIG>, the air intake ducts <NUM> connected to the respective blowers <NUM>(a) to <NUM>(d) include the respective air intake ports <NUM> arranged at a peripheral area of the suction port <NUM> positioned above the center of the presentation space. Therefore, the blowers <NUM> each suction the air, thereby introducing the air inside the presentation space to the suction port <NUM>. That is, the blowers <NUM>(a) to <NUM>(d) are each configured to suction the air from the suction port <NUM> above the center of the presentation space by the air intake port <NUM>, and discharge the air suctioned there from the exhaust port <NUM> to the four corners of the presentation space. Therefore, an amount of the air suctioned from the presentation space by the blowers <NUM>(a) to <NUM>(d) is approximately the same as an amount of the air discharged in the presentation space by the blowers <NUM>(a) to <NUM>(d). Thus, the air in the presentation space is circulated by the air suction function and the air discharge function of the blowers <NUM>. At this time, the tornado-like rising air flow can be generated in the presentation space.

As illustrated in <FIG> and <FIG>, a bubble pump <NUM> is installed at the ceiling level of the room including the presentation space. The bubble pump <NUM> is a device configured to generate a large amount of bubbles using a soap liquid reserved in a liquid reservoir <NUM> (see <FIG>). The liquid reservoir <NUM> may be disposed outside the room. For example, the bubble pump <NUM> generates the bubbles by mixing air in the soap liquid supplied from the liquid reservoir <NUM> and extruding the gas-liquid mixture through a filter with fine mesh, such as a mesh, while applying a pressure to the gas-liquid mixture. The bubble pump <NUM> may be configured to generate the bubbles by stirring the soap liquid by a fan or the like, or another known configuration may be employed. A bubble fan <NUM> configured to blow the large amount of bubbles generated by the bubble pump <NUM> to the presentation space surrounded by the exhaust ports <NUM> of the blowers <NUM> is disposed in or in the proximity of the bubble pump <NUM>. The bubbles generated by the bubble pump <NUM> reach inside the presentation space on the wind blown from the bubble fan <NUM>. Then, the bubbles float on the air flow in the presentation space. By disposing the bubble pump <NUM> at the ceiling level, the bubbles generated by the bubble pump <NUM> falls from the upper side of the presentation space at first. By generating the bubbles in the upper side of the presentation space as described above, the bubbles are easily floated in this space.

A floor fan <NUM> is disposed in the proximity of the floor surface of the room including the presentation space. The floor fan <NUM> includes an exhaust port in the proximity of the floor surface of the presentation space, and blows air from the exhaust port toward the presentation space in a direction along the floor surface. For example, the exhaust port of the floor fan <NUM> is disposed at a wall surface of the room including the presentation space, and the air is blown from the exhaust port to be parallel to the floor surface. The exhaust port of the floor fan <NUM> is preferably disposed, for example, at a height within <NUM> or within <NUM> from the floor surface, and especially preferably at a height within <NUM> or within <NUM>. As illustrated in <FIG> and <FIG>, the exhaust port of the floor fan <NUM> preferably extends horizontally long between the mutually adjacent two air pillars <NUM>. For example, when a distance between the mutually adjacent two air pillars <NUM> is <NUM>%, a length of the exhaust port of the floor fan <NUM> is preferably <NUM>% or more or <NUM>% or more. Thus, by generating the air flow parallel to the floor surface by the floor fan <NUM>, the aggregate of bubbles floating in the presentation space becomes to be less likely to attach to the floor surface. Accordingly, the aggregate of bubbles becomes to be easily pulled up from the floor surface to keep the floating state.

A ceiling fan <NUM> is further disposed in the proximity of the ceiling of the room including the presentation space. The ceiling fan <NUM> includes an exhaust port in the upper side of the presentation space, and blows air toward the suction port <NUM>. For example, the exhaust port of the ceiling fan <NUM> is disposed at a wall surface of the room including the presentation space, and the air is blown from the exhaust port along the ceiling surface of the room. Thus, by generating the air flow parallel to the ceiling surface toward the suction port <NUM> by the ceiling fan <NUM>, the tornado-like air flow formed in the presentation space by the air blowing effect of the tornado fan <NUM> can be broken in the proximity of the suction port <NUM>. Accordingly, the bubbles inside the presentation space can avoid being suctioned in the suction port <NUM> on the tornado-like air flow.

A mist atomizer <NUM> is further disposed in the room including the presentation space. The mist atomizer <NUM> atomizes a mist to increase a humidity inside the presentation space. This allows increasing the sustainability of the bubbles floating inside the presentation space. As described below, while a presentation in which the presentation space is internally illuminated by various kinds of illumination devices is performed in this system, supplying the mist in the presentation space can provide a fantastical illumination effect.

The bubble presentation system <NUM> further includes sensors <NUM>, <NUM> for detecting a state of the presentation space and a state of the aggregate of bubbles. In this embodiment, an optical sensor <NUM> and a thermo-hygro sensor <NUM> are employed. As illustrated in <FIG>, detection information obtained by the sensors <NUM>, <NUM> is input to a sensor controller <NUM> configured by a known PC or the like. An exemplary optical sensor <NUM> is a Time Of Flight (TOF) sensor. Specifically, the optical sensor <NUM> performs a pulse emission of a laser light, such as an infrared light, from a light emitting element, and measures a time period until the laser light returns to a light receiving element after being reflected by an object (aggregate of bubbles). The sensor controller <NUM> can calculate a distance from the sensor to the object and a coordinate value of the object in the presentation space based on the time period measured by the optical sensor <NUM>. Thus, by emitting the laser light from the optical sensor <NUM> to the whole aggregate of bubbles, coordinate information on a contour of the aggregate of bubbles in the presentation space can be obtained. Accordingly, the floating state of the bubbles and the volume of the aggregate of bubbles can be estimated. The thermo-hygro sensor <NUM> measures a temperature and/or a humidity inside the room including the presentation section space. Specifically, since the sustainability of the bubbles increases as the humidity inside the room increases, measuring the humidity inside the room is effective for estimating the sustainability of the bubbles.

The detection information of the sensors <NUM>, <NUM> are used for controlling the bubbles. As illustrated in <FIG>, the sensor controller <NUM> transmits the detection information of the sensors <NUM>, <NUM> and information obtained by performing a predetermined arithmetic operation based on the detection information to a bubble controller <NUM> via a main bus. The bubble controller <NUM> is a PC in which a bubble control program is installed, connected to the tornado fan <NUM>, the bubble pump <NUM>, the bubble fan <NUM>, the floor fan <NUM>, the ceiling fan <NUM>, and the mist atomizer <NUM>, and controls each of the devices. Specifically, the bubble controller <NUM> controls air volume or a wind speed (hereinafter referred to as the air volume or the like) for the various kinds of fans <NUM> and <NUM> to <NUM>, controls a bubble generation amount for the bubble pump <NUM>, and controls an amount of atomizing the mist for the mist atomizer <NUM>. The bubble controller <NUM> controls the devices <NUM> to <NUM> based on, for example, the detection information of the optical sensor <NUM> and the thermo-hygro sensor <NUM> such that the aggregate of bubbles continues floating in the presentation space.

Examples of the control method by the bubble controller <NUM> include preliminarily programing conditions under which the devices <NUM> to <NUM> operate in the bubble controller <NUM> in conjunction with the coordinate value of the aggregate of bubbles, the volume value of the aggregate of bubbles, or the humidity value inside the presentation space. For example, when the coordinate position of the aggregate of bubbles approaches the floor surface, the air volume or the like of the tornado fan <NUM> and/or the floor fan <NUM> is increased to lift the aggregate of bubbles upward. When the coordinate position of the aggregate of bubbles approaches the suction port <NUM>, it is only necessary to decrease the air volume or the like of the tornado fan <NUM> or increase the air volume or the like of the ceiling fan <NUM>, thereby avoiding the bubbles from being suctioned in the suction port <NUM>. When the volume of the aggregate of bubbles is decreased, it is only necessary to increase the bubble generation amount of the bubble fan <NUM>, decrease the air volumes or the like of the fans <NUM> and <NUM> to <NUM> to make the bubbles less likely to be broken by the wind, or increase the amount of atomizing the mist by the mist atomizer <NUM> to increase the sustainability of the bubbles. When the volume of the aggregate of bubbles is excessively increased, the control opposite to the above is performed. Since the decrease of the sustainability of the bubbles is concerned when the humidity inside the presentation space is decreased, it is only necessary to increase the amount of atomizing the mist by the mist atomizer <NUM>.

The control processing by the above-described bubble controller <NUM> can be achieved by using a machine learning such as an artificial neural network (deep learning and the like) and a reinforcement learning. For example, the deep learning is performed using a data set of the operations of the various kinds of devices <NUM> to <NUM> and the behaviors of the bubbles by the operations as teacher data, and a learned model obtained as its result can be used for the control processing by the bubble controller <NUM>. Accordingly, by referring to the learned model, the various kinds of devices <NUM> to <NUM> can be efficiently operated depending on the behavior of the bubbles so as to optimize the volume and the floating state of the bubbles. When the reinforcement learning is performed, it is only necessary to control the various kinds of devices <NUM> to <NUM> so as to maximize a reward or minimize a penalty by giving a reward to an environment in which the volume of the aggregate of bubbles is within an appropriate range and its floating state is kept or giving a penalty to an environment in which the volume of the aggregate of bubbles is out of the appropriate range or the aggregate of bubbles is attached to the floor surface or the ceiling. Thus, by using the machine learning, the behavior of the aggregate of bubbles complicatedly changing depending on the environment inside the presentation space can be efficiently optimized.

The presentation system <NUM> further includes various kinds of lights <NUM> to <NUM> for illuminating the presentation space or the aggregate of bubbles. Ceiling lights <NUM> are disposed near the ceiling (ceiling level) of the room including the presentation space. A moving light <NUM> is disposed above the center of the presentation space, positioned above the suction port <NUM> in the example illustrated in <FIG>, and irradiates the aggregate of bubbles with an illuminating light through the suction port <NUM>. Floor lights <NUM> are disposed on the floor surface of the room including the presentation space. The lights <NUM> to <NUM> are connected to a light controller <NUM> configured by a known PC or the like. The light controller <NUM> controls light amounts (brightness), light colors, and blinking of the illuminating lights of the respective lights <NUM> to <NUM>. Especially, the light controller <NUM> can control the irradiation direction of the light for the moving light <NUM>. Specifically, the light controller <NUM> only needs to receive the coordinate information on the contour of the aggregate of bubbles from the sensor controller <NUM> via the main bus and control the irradiation direction of the moving light <NUM> based on the coordinate information. For example, the irradiation direction of the moving light <NUM> can be controlled so as to irradiate the aggregate of bubbles with the light. Accordingly, even the aggregate of bubbles whose shape and position change in real-time can be appropriately illuminated.

The presentation system <NUM> further includes a speaker <NUM> in the room including the presentation space. Especially, in the example illustrated in <FIG>, the speaker <NUM> is disposed near the ceiling (ceiling level) of the room. The speaker <NUM> is connected to a sound controller <NUM> configured by a known PC or the like. The sound controller <NUM> controls acoustic effects of a BGM, a sound effect, and the like emitted from the speaker <NUM>. The sound controller <NUM> may receive the detection information or the like of the sensors <NUM>, <NUM> from the sensor controller <NUM> via the main bus and control the sound output from the speaker <NUM> based on the detection information. For example, the sound can be changed depending on the position and the volume of the aggregate of bubbles in the presentation space.

The presentation system <NUM> further includes projectors <NUM> configured to project image lights on the aggregate of bubbles. In the embodiment illustrated in <FIG> and <FIG>, the two projectors <NUM> are disposed at symmetrical positions across the center of the presentation space. Therefore, the image lights can be projected on the aggregate of bubbles gathering in the proximity of the center in the presentation space from both right and left sides by the two projectors <NUM>. Accordingly, the image lights can be projected on approximately the whole of the aggregate of bubbles. The number of the projectors <NUM> can be appropriately increased/decreased in consideration of, for example, the size of the presentation space and the assumed size of the aggregate of bubbles. As illustrated in <FIG>, each of the projectors <NUM> only need to be disposed in the proximity of the ceiling of the room including the presentation space. Each of the projectors <NUM> is connected to a video controller <NUM> configured by a known PC or the like, and projects the image light on the aggregate of bubbles in accordance with the control by the video controller <NUM>.

The video controller <NUM> controls each of the projectors <NUM> to perform what is called a projection mapping on the aggregate of bubbles. The video controller <NUM> stores a CG video and the like to be projected on the aggregate of bubbles, and projects the video from each of the projectors <NUM>. The video controller <NUM> obtains the coordinate information on the contour of the aggregate of bubbles from the sensor controller <NUM> via the main bus. The video controller <NUM> changes the video projected from each of the projectors <NUM> in real-time, and controls the projection direction of the image light based on the coordinate information of the aggregate of bubbles. For example, the video controller <NUM> may change a content and a light color of the video to be projected on the aggregate depending on the size, the shape, or the floating position of the aggregate of bubbles. Accordingly, an effective projection mapping can be performed on the aggregate of bubbles floating in the presentation space as a projection plane.

<FIG> and <FIG> schematically illustrate one presentation space and one system <NUM> for forming the aggregate of bubbles there. However, a plurality of the presentation spaces may be formed in one room by disposing a plurality of the systems <NUM> arranged in the same room.

<FIG> illustrates a state where an aggregate of bubbles is actually floated in a room and the aggregate is illuminated. As illustrated in <FIG>, according to the bubble presentation system <NUM> of the present invention, since the aggregate of bubbles can be actually floated in the presentation space, a human can enter there. Thus, the bubble easily floats because of its light mass, and has a characteristic of forming an aggregate like a cloud. The system <NUM> according to the present invention can provide an innovative presentation effect effectively using the above-described characteristic of the bubble by artificially generating a tornado-like rising air flow in the presentation space and floating the bubbles on the air flow.

In this application, the embodiments of the present invention have been described above by referring to the drawings to express the contents of the present invention. However, the present invention is not limited to the embodiments described above.

The present invention relates to a bubble presentation system and a bubble presentation method allowing an aggregate of bubbles to float in midair. Accordingly, the present invention can be appropriately applicable to the entertainment industry and the advertising industry.

Claim 1:
A presentation system (<NUM>) comprising:
a tornado fan (<NUM>) that includes a plurality of blowers (<NUM>), wherein the tornado fan (<NUM>) is configured so that each of the plurality of blowers (<NUM>) blows air so as to generate a clockwise or counterclockwise air flow in plan view in a presentation space surrounded by exhaust ports (<NUM>) of the plurality of blowers (<NUM>);
a suction port (<NUM>) suctioning the air blown by the tornado fan (<NUM>) in an upper side of the presentation space; and
a supply device (<NUM>) that supplies a float body in the presentation space,
characterized that the presentation system (<NUM>) further comprise flexible air intake ducts (<NUM>) and flexible exhaust ducts (<NUM>) that are connected to the plurality of blowers (<NUM>), respectively, wherein
the air intake ducts (<NUM>) include air intake ports (<NUM>),
the exhaust ducts (<NUM>) include the exhaust ports (<NUM>),
the air suctioned from the air intake ports (<NUM>) is supplied to the plurality of blowers (<NUM>) via the air intake ducts (<NUM>),
the plurality of blowers (<NUM>) discharge the air suctioned from the air intake ports (<NUM>) from the exhaust ports (<NUM>) via the exhaust ducts (<NUM>), and
the air intake ports (<NUM>) arranged at a peripheral area of the suction port (<NUM>).