Aerial LED screen and aerial LED display system

Abstract

An aerial LED screen and an aerial LED display system, relating to the technical field of display screens. The aerial LED screen can be applied to a tethered helium balloon, and specifically comprises: a plurality of LED light source groups connected to the surface of the tethered helium balloon by means of connectors, each LED light source group comprising a plurality of LED point light sources; and a main controller (20) and a plurality of sub-controllers (21), wherein in response to a control instruction received by a communication module, the main controller (20) sends a control signal to the sub-controllers (21), so that the sub-controllers (21) control the LED point light sources in connected LED light source groups. The buoyancy provided by the helium balloon can drive an LED screen arranged thereon to rise into the air, thereby breaking through limitations of conventional ground display modes. Moreover, once a power interface is connected to a power supply, a user can control the light-emitting state of the LED dot matrix on the surface of the tethered helium balloon by means of the main controller (20) and the sub-controllers (21), thereby finally achieving omnidirectional, high-quality and stable aerial image display tasks.

Description

An aerial LED screen and aerial LED display system

[0001] This application claims priority to Chinese Patent Application No. 202422722466.4, filed on November 8, 2024, entitled "An Aerial LED Screen and Aerial LED Display System", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application belongs to the field of display technology, and more specifically, relates to an aerial LED screen and an aerial LED display system. Background Technology

[0003] Currently, ground projection technology based on aerial carriers is commonly used to achieve aerial image display tasks. However, projectors are greatly affected by ambient light, and light attenuation occurs during long-distance projection, resulting in poor brightness and clarity of the aerial projected image. Furthermore, in projection schemes using tethered helium balloons as carriers, the balloons may shift due to wind speed and airflow. In such cases, the ground projector cannot track and focus on the balloon's position in real time, leading to inaccurate projection position blending and a blurry projected image. Based on the above, the current aerial display solutions offer poor display quality.

[0004] Therefore, how to achieve high-quality aerial image display has become a technical problem that urgently needs to be solved by those skilled in the art.

[0005] Utility Model Content

[0006] In view of this, the purpose of this application is to provide an aerial LED screen and an aerial LED display system for achieving high-quality aerial video display tasks. The technical solution is as follows:

[0007] The first aspect of this application provides an aerial LED screen for use on a tethered helium balloon, the aerial LED screen comprising:

[0008] The display module includes several LED light source groups, which are connected to the surface of the tethered helium balloon via connectors. Each LED light source group includes multiple LED point light sources, and the LED point light sources in the display module form a spherical LED display dot matrix on the surface of the tethered helium balloon in an inflated state.

[0009] The system includes a main controller and sub-controllers connected to the main controller. The main controller includes a communication module and is configured to: send control signals to the sub-controllers in response to control commands received through the communication module; each output port of the sub-controllers is connected to the plurality of LED light source groups, and the sub-controllers are configured to control the LED point light sources in the connected LED light source groups according to the received control signals.

[0010] The power interfaces of the plurality of LED light source groups, the main controller, and the sub-controllers are used to connect to a power source.

[0011] In one possible implementation, the LED light source group includes a light strip body, on which a plurality of fasteners for fixing the LED point light source are provided, and the LED point light source is mounted on the light strip body through the fasteners.

[0012] In one possible implementation, the LED point light sources in the LED light source group are arranged along the meridian direction of the tethered helium balloon.

[0013] In one possible implementation, the tethered helium balloon is surrounded by a net bag.

[0014] The LED light source group is connected to the surface of the tethered helium balloon via a connector, including:

[0015] The LED light source group is connected to the mesh portion of the net bag that wraps the bladder via a first connector.

[0016] In one possible implementation, each of the sub-controllers is connected to two adjacent groups of LED light sources;

[0017] The sub-controller is connected to the net rope of the opening of the net bag via a second connector; when the opening of the net bag containing the tethered helium balloon is open and the net rope of the opening is fixedly connected to the ground, the net bag node connected to the sub-controller is below the net bag node connected to the LED light source group connected to the sub-controller.

[0018] In one possible implementation, the LED light source assembly is connected to the surface of the tethered helium balloon via a connector, including:

[0019] The light strip body is connected to the tethered helium balloon via a light strip fixing buckle fixedly installed on the surface of the tethered helium balloon. In the buckled state, the light strip fixing buckle can fix the light strip body inside the light strip fixing buckle to the surface of the tethered helium balloon.

[0020] In one possible implementation, the plurality of LED light source groups are connected to the surface of the tethered helium balloon by a plurality of steel wire ropes; wherein each steel wire rope is connected end to end and passes through through holes at the same latitude and height on each of the light strip bodies along the latitude direction of the tethered helium balloon.

[0021] In one possible implementation, a connecting hole is provided on the light strip body at a position perpendicular to the through hole. The connecting hole is threaded, and a steel wire rope passing through the through hole is fixed to the through hole by a screw that is screwed into the thread.

[0022] A second aspect of this application provides an aerial LED display system, including a tethered helium balloon and an aerial LED screen as described in any implementation of the first aspect above.

[0023] In one possible implementation, a light strip fixing buckle is provided at a predetermined position on the surface of the tethered helium balloon;

[0024] The preset location includes multiple location groups, and each location group includes multiple location points at the same latitude and altitude; furthermore, any two location points in any two adjacent location groups correspond to different meridians.

[0025] By employing the above technical solution, this application provides an aerial LED screen applied to a tethered helium balloon, specifically comprising: several LED light source groups connected to the surface of the tethered helium balloon via connectors, each LED light source group including multiple LED point light sources; a main controller and a sub-controller, wherein the main controller, in response to control commands received by the communication module, sends control signals to the sub-controllers, enabling the sub-controllers to control the LED point light sources in the connected LED light source groups. Based on this, when the tethered helium balloon is filled with helium, the buoyancy provided by the helium balloon can lift the aerial LED screen mounted on it, thereby breaking through the limitations of traditional ground-based display methods; after the power interfaces of each component are connected to the corresponding power supply, the LED matrix emits light, and the user can control the illumination state of the LED matrix on the surface of the tethered helium balloon through the main controller and sub-controllers, ultimately achieving a comprehensive, high-quality, and stable aerial image display task, helping to provide users with a comprehensive and immersive visual experience. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 is a structural block diagram of an aerial LED screen according to an embodiment of this application;

[0028] Figure 2 illustrates the circuit structure diagram of the aerial LED screen;

[0029] Figure 3 is a structural schematic diagram of an aerial LED screen provided in an embodiment of this application;

[0030] Figure 4 shows a schematic diagram of the display effect of the aerial LED screen provided in this application;

[0031] Figure 5 shows a schematic diagram of the structure of the net bag containing the balloon when the opening is tightened.

[0032] Figure 6 shows a schematic diagram of the structure of the net bag containing the balloon when the opening is open;

[0033] Figure 7 shows a schematic diagram of the LED light source group's placement on the surface of the tethered helium balloon;

[0034] Figure 8 illustrates the setting position of the sub-controller when the net is open at the opening;

[0035] Figure 9 illustrates the setting position of the sub-controller when the net is tightened at the opening;

[0036] Figure 10 shows a schematic diagram of the LED strip fixing buckle;

[0037] Figure 11 shows one of the schematic diagrams of the connection between the light strip body and the steel wire rope;

[0038] Figure 12 shows a second schematic diagram of the connection between the light strip body and the steel wire rope;

[0039] Figure 13 shows a schematic diagram of the connection between the light strip body and the tethered helium balloon;

[0040] Figure 14 shows a front view of an aerial LED screen connected to a tethered helium balloon via a light strip fastener;

[0041] Figure 15 shows a bottom view of an aerial LED screen connected to a tethered helium balloon via a light strip fastener;

[0042] Figure 16 shows a schematic diagram of the installation position of the fixing buckle for the light strip on the surface of the tethered helium balloon. Detailed Implementation

[0043] The embodiments of this application are described below with reference to the accompanying drawings. The terminology used in the implementation section of this application is only for explaining specific embodiments and is not intended to limit the application. Those skilled in the art will recognize that, with technological advancements and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0044] This application provides an aerial LED screen and an aerial LED display system to achieve high-quality aerial image display tasks.

[0045] This application provides an aerial LED screen for use on tethered helium balloons.

[0046] Optionally, the tethered helium balloon can be a dual-bladder structure, specifically composed of a helium bladder and an air bladder. The helium bladder is constant in pressure, and the air bladder is equipped with an automatic pressure-regulating device to ensure that the tethered helium balloon is always fully inflated. Furthermore, the tethered helium balloon can be made of materials such as modified polyurethane and Victoren fabric. Based on this, the fully inflated tethered helium balloon can have a rigid effect, providing support for the LED screen mounted on it, thus ensuring the display stability of the LED screen. It should be noted that, to ensure the levitation and aerial display effect of the LED screen, the size of the tethered helium balloon can be determined based on the total weight of the helium balloon with the aerial LED screen and the buoyancy of the helium balloon. For example, the diameter of the tethered helium balloon can be no less than 15 meters.

[0047] Figure 1 is a structural block diagram of an aerial LED screen according to an embodiment of this application. As shown in Figure 1, the aerial LED screen may include a display module 1 and a control module 2.

[0048] Specifically, the display module 1 may include several LED light source groups, which are connected to the surface of the tethered helium balloon via connectors; the LED light source groups may include multiple LED point light sources.

[0049] The LED point light sources in display module 1 form a spherical LED display dot matrix on the surface of the inflated helium balloon. Based on this, the helium balloon can serve as a support structure, providing stable support for the LED point light sources on its surface. Furthermore, the smaller the distance between adjacent LED point light sources, i.e., the denser the LED point light source arrangement, the better the display effect. The number of LED point light sources in display module 1 can be positively correlated with the diameter of the helium balloon to ensure the display effect of the LED screen.

[0050] The control module 2 may include a main controller 20 and a sub-controller 21 connected to the main controller 20.

[0051] The main controller 20 includes a communication module, which can be used to send control signals to the sub-controllers 21 in response to control commands received through the communication module. Optionally, the control commands received by the main controller can be commands sent through an application software (APP) running on a user terminal (such as a mobile phone) for remotely controlling the display of screen content. It should be noted that, to meet the control requirements of each LED light source group, the total number of output channels of the sub-controllers is at least the number of LED light source groups; since the output channel number of a single controller is prioritized, the above-mentioned sub-controllers can be multiple sub-controllers. Based on this, in one possible implementation, the main controller can be connected to each sub-controller separately via a network cable; in another possible implementation, the main controller and each sub-controller can be interconnected in a chain-like connection manner. In this case, the sub-controllers can receive control signals directly from the main controller or from other sub-controllers via a network cable.

[0052] Each output port of the sub-controller 21 is connected to one of the plurality of LED light source groups, and the output port connected to an LED light source group corresponds one-to-one with the plurality of LED light source groups. Based on this, the sub-controller can be used to control the LED point light sources in the connected LED light source groups according to the received control signals.

[0053] In addition, the power interfaces of the plurality of LED light source groups, the sub-controllers and the main controller are used to connect to a power source so as to supply power to the LED light source groups, the sub-controllers and the main controller.

[0054] In one possible implementation, the aerial LED screen may further include a power transformer 3.

[0055] The output port of the power transformer is electrically connected to the power interface of the LED light source group. The power transformer is used to convert the input voltage into the LED power supply voltage to power the LED light source group; therefore, the power transformer can also be called an LED driver power supply. It should be noted that, since the number of output ports of a single power transformer is limited, multiple power transformers can be used to meet the power supply needs of each LED light source group.

[0056] Optionally, the power transformer mentioned above can be a DC24V-1000W LED power supply, such as a rainproof LED power supply with filtering and a semi-potting process.

[0057] Figure 2 shows a schematic diagram of the circuit structure of the aerial LED screen. As shown in Figure 2, the power transformer 3, the sub-controller 21, and the main controller 20 are electrically connected to a 220V power supply, using 4 square millimeter wires (i.e., wires with a cross-sectional area of ​​4 square millimeters). Multiple LED light source groups corresponding to the sub-controller 21 are electrically connected to the power transformer 3, using 2.5 square millimeter wires (i.e., wires with a cross-sectional area of ​​2.5 square millimeters). The multiple LED light source groups corresponding to the sub-controller 21 are LED light source groups connected to the output ports of the sub-controller 21, and this connection can refer to the connection via 2.5 square millimeter wires. Furthermore, the main controller 20 and the sub-controller 21 can be connected via a network cable to achieve control signal transmission between the controllers.

[0058] In one possible implementation, the power interfaces of each component can be connected to a ground power source via tensile cables, allowing the ground power source to supply power to the aerial LED screen. The components may include LED light source groups, a main controller, and sub-controllers, and may also include power transformers.

[0059] In another possible implementation, a power supply battery can be installed on the tethered helium balloon, and the airborne LED screen can be powered by the electrical connection between the power interfaces of each component and the power supply battery.

[0060] Based on the above solution, this implementation provides an aerial LED screen for tethered helium balloons, specifically comprising: several LED light source groups connected to the surface of the tethered helium balloon via connectors, each LED light source group including multiple LED point light sources; a main controller and sub-controllers, the main controller responding to control commands received by the communication module and sending control signals to the sub-controllers, enabling the sub-controllers to control the LED point light sources in the connected LED light source groups. Furthermore, when the tethered helium balloon is filled with helium, the buoyancy provided by the helium balloon can lift the LED screen mounted on it into the air, thereby breaking through the limitations of traditional ground-based display methods; after a power supply is connected to the power interface, the LED matrix emits light, and users can control the illumination state of the LED matrix on the surface of the tethered helium balloon through the main controller and sub-controllers, ultimately achieving a comprehensive, high-quality, and stable aerial image display task, helping to provide users with a comprehensive and immersive visual experience.

[0061] In one or more embodiments provided in this application, the LED light source group may include a light strip body, on which a plurality of fasteners for fixing the LED point light source are provided, and the LED point light source is mounted on the light strip body through the fasteners.

[0062] Based on the above, an LED light strip composed of multiple LED point light sources can serve as an LED light source group. This embodiment, through its modularly designed LED light source group, greatly facilitates the installation and maintenance of the aerial LED screen, reduces its implementation cost and maintenance difficulty, and to some extent improves its lifespan and reliability. In one possible implementation, the LED point light sources can be fastened to the waterproof protective shell via snap-fit ​​connectors, and then connected to the fixing components.

[0063] In one or more embodiments provided in this application, the LED point light sources in the LED light source group are arranged along the meridian direction of the tethered helium balloon.

[0064] Therefore, the connection points between the LED light source group and the surface of the tethered helium balloon can include multiple points arranged along the meridian direction. In schemes where LED point light sources are set along the parallel or other directions, a large number of connectors are required to ensure that the LED point light sources in the same light source group extend in a specified direction on the surface of the tethered helium balloon. This scheme utilizes the gravity of the LED light strip to set the LED light strip along the meridian direction of the tethered helium balloon, which can reduce the number of connectors and help ensure the stable display of the LED dot matrix.

[0065] In one possible implementation, several identical LED light strips can be set at preset intervals, starting from a preset latitude and altitude, along the meridian direction to reduce control complexity to some extent. It should be noted that there can be certain areas at the top and bottom of the tethered helium balloon where no LED point light sources are installed; that is, the LED light strips do not need to start from the apex of the tethered helium balloon.

[0066] In one possible implementation, the fasteners on the LED strip body can be arranged at fixed intervals; in another possible implementation, the fasteners on the LED strip body can also be arranged at variable intervals, wherein the interval between adjacent fasteners can be related to their position on the tethered helium balloon, such as being positively correlated with the latitude of that position, so as to reduce the LED arrangement interval at the equatorial position of the tethered helium balloon.

[0067] For example, Figure 3 is a schematic diagram of an aerial LED screen provided in an embodiment of this application. Several LED light strips are arranged along the meridian direction (i.e., longitudinal direction) of the tethered helium balloon, forming an LED display dot matrix on the surface of the inflated tethered helium balloon. The control module can be set at the bottom of the tethered helium balloon, and the aerial LED screen can be connected to a power source via cables. Based on this, Figure 4 illustrates a schematic diagram of the display effect of the aerial LED screen based on this embodiment. This application sets several LED point light sources and corresponding driving control circuits on the surface of the tethered helium balloon, constructing a spherical screen that can float in the air. Based on this, the luminous state of the evenly distributed LED point light sources on the surface of the balloon is controlled, realizing the aerial image display task. This solves the problem that the LED screens mounted on the exterior of spherical building curtain walls can only provide a semi-spherical screen effect and cannot take off. Furthermore, the aerial image display is achieved through LED luminescence, solving the problems of unclear images and inaccurate positions. Moreover, the size of tethered helium balloons is often large, so whether in a vast square, a large event site, or an outdoor scenic area, the LED spherical screen set on the surface of the tethered helium balloon can bring the audience a comprehensive and immersive visual experience.

[0068] The following is an exemplary description of the connection method between the LED light source group and the tethered helium balloon.

[0069] In one or more embodiments provided in this application, the tethered helium balloon is surrounded by a net bag.

[0070] For example, Figure 5 shows a schematic diagram of the net bag containing the balloon when the opening is tightened. The tightened opening corresponds to the state when the tethered helium balloon is suspended in the air. In this case, the net rope at the opening is connected to the hanging ring below the helium balloon. Figure 6 shows a schematic diagram of the net bag containing the balloon when the opening is open. The open opening corresponds to the state when the tethered helium balloon is fixed to the ground. In this case, the net rope at the opening is fixedly connected to a fixing point set on the ground, and the net rope is approximately perpendicular to the ground. Based on this, the LED light source group is connected to the surface of the tethered helium balloon through a connector and may include:

[0071] The LED light source group is connected to the mesh portion of the net bag used to wrap the balloon via a first connector.

[0072] Referring to Figures 5 and 6, a uniformly distributed and stable net is placed over the outer layer of the tethered helium balloon's bladder. The inflated tethered helium balloon adheres to the net. Based on this, an LED light source assembly can be connected to the net via a first connector to achieve the purpose of setting LED point light sources on the surface of the tethered helium balloon. Optionally, the first connector can be a buckle or a strap. It should be noted that, compared to existing tethered helium balloon nets, the lower edge of the mesh portion of the net described in this application is closer to the bottom of the balloon, so that the LED point light sources near the bottom of the helium balloon can be stably connected to the surface of the helium balloon.

[0073] In one possible implementation, the LED light source assembly can be connected to the net via a first connector at the grid nodes of the net.

[0074] Based on the above, Figure 7 shows a schematic diagram of the arrangement of the LED light source group on the surface of the tethered helium balloon. As shown in Figure 7, by setting the LED light source group according to the texture of the net, that is, by setting the fixing parts containing LED point light sources at the nodes of the net, the connection stability between the LED light source group and the net can be improved to a certain extent, thus providing a basis for ensuring the stability of the image display on the surface of the tethered helium balloon.

[0075] In one or more embodiments provided in this application, each of the sub-controllers is connected to an adjacent LED light source group.

[0076] Based on the above, the sub-controller is connected to the net rope of the opening portion of the net bag via a second connector. For example, the second connector can be a zipper. Furthermore, when the opening portion of the net bag containing the tethered helium balloon is open and the net rope of the opening portion is fixedly connected to the ground, the net bag node connected to the sub-controller is below the net bag node connected to the LED light source group connected to the sub-controller, as shown in Figure 8; when the opening of the net bag is closed, the sub-controller is located at or below the bottom of the tethered helium balloon without LED point light sources, as shown in Figure 9.

[0077] Based on the above, the adjacent placement of LED light source groups and sub-controllers with electrical connections simplifies the connection between modules to a certain extent, which helps to save installation and maintenance costs.

[0078] In one or more embodiments provided in this application, the LED light source group is connected to the surface of the tethered helium balloon via a connector, and may include:

[0079] The light strip body is connected to the tethered helium balloon via a light strip fixing buckle fixedly installed on the surface of the tethered helium balloon.

[0080] The light strip fixing buckle has male and female buckles 101 and 102 at its two free ends, and the two free ends are parallel to the latitude direction of the tethered helium balloon. For example, Figure 10 shows a schematic diagram of the light strip fixing buckle. The light strip fixing buckle in the fastened state can fix the light strip body inside the light strip fixing buckle to the surface of the tethered helium balloon. In addition, the width of the first position on the light strip body can be greater than the width of the second position, where the first position is the position where the fixing member is located, and the second position is the position between two adjacent fixing members. Based on this, the light strip body inside the light strip fixing buckle can be the part between two adjacent fixing members on the light strip body. In this case, the inner ring circumference of the light strip fixing buckle in the fastened state can be smaller than the circumference at the first position. In one possible implementation, the inner ring circumference can be the same as or slightly larger than the circumference at the second position.

[0081] In one or more embodiments provided in this application, the plurality of LED light source groups are connected to the surface of the tethered helium balloon by a plurality of steel wire ropes.

[0082] Each steel wire rope is connected end to end and passes through through holes at the same latitude on each of the light strip bodies along the latitude direction of the tethered helium balloon.

[0083] In other words, the light strip body has several through holes, which are through holes along the latitude direction of the tethered helium balloon, i.e., transverse through holes. The steel wire rope allows LED point light sources at the same latitude to be stably maintained at the same height, reducing the number of connectors needed on the surface of the tethered helium balloon. It should be noted that the length of the closed steel wire rope can be the same as the target length, where the target length refers to the latitude length of the tethered helium balloon at the latitude of the steel wire rope.

[0084] In one possible implementation, a connecting hole is provided on the light strip body at a position perpendicular to the through hole. The connecting hole is threaded, and a steel wire rope passing through the through hole is fixed to the through hole by a screw that is screwed into the thread.

[0085] Taking an LED point light source composed of two LED beads as an example, Figures 11 and 12 show schematic diagrams of the connection between the LED strip body and the steel wire rope. A through hole 115 between two fixing members 113 on the LED strip body 112 can form a T-shaped hole structure with a connecting hole perpendicular to the through hole 115. A screw 114 screwed into the connecting hole can fix the steel wire rope 111 to the through hole 115, preventing display abnormalities caused by movement of the LED strip connected to the steel wire rope, thus ensuring the display stability of the aerial LED screen. Furthermore, as shown in Figure 12, the LED point light source 122 can be fastened to the transparent waterproof shell 121 and then placed inside the fixing member 113. Adjacent LED point light sources are interconnected via wires 123. It should be noted that the LED point light source described in this application may include at least one LED bead; the composition of the LED point light source is not limited in this application.

[0086] Figure 13 shows a schematic diagram of the connection between the LED strip body and the tethered helium balloon. As shown in Figure 13, the tethered helium balloon is equipped with an LED strip fixing buckle 131. The two free ends of the LED strip fixing buckle are wrapped around the position between the two fixing parts on the LED strip body and fastened together. In addition, the steel wire rope 111 passes through the through hole 115 at the same latitude and height on each LED strip body and is connected end to end, so as to finally achieve the purpose of fixing the LED strip to the surface of the helium balloon.

[0087] Based on the above, Figures 14 and 15 show the structural schematic diagrams of the aerial LED screen connected to the tethered helium balloon via LED strip fixing buckles and steel wire ropes from the front and bottom views, respectively. As shown in Figure 14, this connection method can effectively reduce the number of LED strip fixing buckles on the tethered helium balloon. As shown in Figure 15, the main controller 20 can be set at the bottom of the helium balloon, and the power transformer 3 and sub-controllers 21 can be arranged in a ring. The LED light source group connected to each power transformer (or each sub-controller) is located above the component setting position and is adjacent to each other. In addition, for any sub-controller, the controller is connected to the main controller via a network cable, or connected to its adjacent sub-controller via a network cable 151.

[0088] The aerial LED display system provided in the embodiments of this application will be described below.

[0089] This application also provides an aerial LED display system, which includes an aerial LED screen and a tethered helium balloon, wherein the aerial LED screen is applied to the tethered helium balloon.

[0090] The aerial LED screen may include:

[0091] The display module includes several LED light source groups, which are connected to the surface of the tethered helium balloon via connectors. Each LED light source group includes multiple LED point light sources, and the LED point light sources in the display module form a spherical LED display dot matrix on the surface of the tethered helium balloon in an inflated state.

[0092] The system includes a main controller and sub-controllers connected to the main controller. The main controller includes a communication module and is configured to: send control signals to the sub-controllers in response to control commands received through the communication module; each output port of the sub-controllers is connected to the plurality of LED light source groups, and the sub-controllers are configured to control the LED point light sources in the connected LED light source groups according to the received control signals.

[0093] The power interfaces of the plurality of LED light source groups, the main controller, and the sub-controllers are used to connect to a power source.

[0094] In one or more embodiments provided in this application, the LED light source group includes a light strip body, and the light strip body is provided with a plurality of fixing members for fixing the LED point light source, and the LED point light source is mounted on the light strip body through the fixing members.

[0095] In one or more embodiments provided in this application, the LED point light sources in the LED light source group are arranged along the meridian direction of the tethered helium balloon.

[0096] In one or more embodiments provided in this application, the outer part of the tethered helium balloon is wrapped with a net bag;

[0097] The LED light source group is connected to the surface of the tethered helium balloon via a connector, including:

[0098] The LED light source group is connected to the mesh portion of the net bag that wraps the bladder via a first connector. In one or more embodiments provided in this application, the LED light source groups connected to each of the sub-controllers are adjacent to each other.

[0099] The sub-controller is connected to the net rope of the opening of the net bag via a second connector; when the opening of the net bag containing the tethered helium balloon is open and the net rope of the opening is fixedly connected to the ground, the net bag node connected to the sub-controller is below the net bag node connected to the LED light source group connected to the sub-controller.

[0100] In one or more embodiments provided in this application, a light strip fixing buckle is provided at a preset position on the surface of the tethered helium balloon;

[0101] The preset location includes multiple location groups, and each location group includes multiple location points at the same latitude and altitude; furthermore, any two location points in any two adjacent location groups correspond to different meridians.

[0102] For example, Figure 16 shows a schematic diagram of the installation position of the light strip fixing buckles on the surface of a tethered helium balloon. As shown in Figure 16, two sets of position points adjacent in latitude and altitude are not aligned, while two sets of position points separated by one row are aligned, i.e., on the same meridian. This installation method can effectively reduce the number of light strip fixing buckles required on the surface of the tethered helium balloon.

[0103] Based on the above, the LED light source assembly is connected to the surface of the tethered helium balloon via a connector, including:

[0104] The light strip body is connected to the tethered helium balloon via a light strip fixing buckle fixedly installed on the surface of the tethered helium balloon. In the buckled state, the light strip fixing buckle can fix the light strip body inside the light strip fixing buckle to the surface of the tethered helium balloon.

[0105] In one or more embodiments provided in this application, the plurality of LED light source groups are connected to the surface of the tethered helium balloon by a plurality of steel wire ropes; wherein, each steel wire rope is connected end to end and passes through through holes at the same latitude and height provided on each of the light strip bodies along the latitude direction of the tethered helium balloon.

[0106] In one or more embodiments provided in this application, a connecting hole is provided on the light strip body at a position perpendicular to the through hole, the connecting hole is provided with a thread, and a steel wire rope passing through the through hole is fixed to the through hole by a screw screwed to the thread.

[0107] For example, taking a helium balloon with a diameter of 18 meters as an example, the LED screen installed on it may include: 784 LED light strips (i.e., LED light source groups), 1 main controller, 49 sub-controllers with 16 outputs, and 200 power converters.

[0108] The length of a single LED light strip is 22 meters. On a single LED light strip, the spacing between adjacent light points is 6.2 cm, and the spacing between adjacent through-holes is 25 cm. Correspondingly, the spacing between adjacent steel cables along the same meridian of the helium balloon can be a multiple of 25 cm. Along the latitudinal direction, a light strip fixing buckle can be installed every 25 light strips, and the fixing buckles at adjacent latitudes are staggered to ensure that the fixing buckles are evenly distributed on the surface of the balloon in a diamond pattern. Optionally, the spacing between any two fixing buckles can not exceed 2 meters. In this case, the spacing between the light strips at the equator is 7.2 cm, and the spacing increases with increasing latitude until it is almost zero. The distance from the highest end of the light strip to the top of the balloon and the distance from the lowest end of the light strip to the bottom of the balloon can be equal, both being 3.2 meters.

[0109] With the above configuration, the total weight of the helium balloon and the aerial LED screen is approximately 1500 kg. The volume of the 18-meter diameter balloon is 3052 cubic meters. Each cubic meter of helium lifts 1.05 kg of weight, meaning the helium balloon can lift approximately 3 tons at its maximum capacity. Furthermore, by combining this with the double-bladder structure of the tethered helium balloon, it is possible to fill the balloon with approximately 1800 cubic meters of helium, with the remaining space filled with air bladders.

[0110] In addition, multiple sets of fixing ropes can be used to secure the tethered helium balloon through connecting and fixing rings to maintain flight stability. This allows the helium balloon to resist external interference and reduce swaying and deviation during ascent and levitation. Furthermore, the connecting components can control the ascent and descent of the helium balloon through the connecting ropes. Combined with ground-mounted winches and steel cables, precise control of the helium balloon's takeoff and landing can be achieved, ensuring operational safety and accuracy. This provides a foundation for ensuring that the demonstration activities can proceed according to the predetermined plan.

[0111] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used merely to distinguish one entity from another, and do not necessarily require or imply any such actual relationship or order between these entities. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0112] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The various embodiments can be combined as needed, and the same or similar parts can be referred to each other.

[0113] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An aerial LED screen, characterized in that, The aerial LED screen, used on tethered helium balloons, includes: The display module includes several LED light source groups, which are connected to the surface of the tethered helium balloon via connectors. Each LED light source group includes multiple LED point light sources, and the LED point light sources in the display module form a spherical LED display dot matrix on the surface of the tethered helium balloon in an inflated state. The system includes a main controller and sub-controllers connected to the main controller. The main controller includes a communication module and is configured to: send control signals to the sub-controllers in response to control commands received through the communication module; each output port of the sub-controllers is connected to the plurality of LED light source groups, and the sub-controllers are configured to control the LED point light sources in the connected LED light source groups according to the received control signals. The power interfaces of the plurality of LED light source groups, the main controller, and the sub-controllers are used to connect to a power source.

2. The aerial LED screen according to claim 1, characterized in that, The LED light source assembly includes a light strip body, on which a plurality of fasteners for fixing the LED point light source are provided, and the LED point light source is mounted on the light strip body through the fasteners.

3. The aerial LED screen according to claim 2, characterized in that, The LED point light sources in the LED light source group are arranged along the meridian direction of the tethered helium balloon.

4. The aerial LED screen according to claim 3, characterized in that, The tethered helium balloon is surrounded by a net bag. The LED light source group is connected to the surface of the tethered helium balloon via a connector, including: The LED light source group is connected to the mesh portion of the net bag that wraps the bladder via a first connector.

5. The aerial LED screen according to claim 4, characterized in that, Each of the sub-controllers is connected to two adjacent LED light source groups; The sub-controller is connected to the net rope of the opening of the net bag via a second connector; when the opening of the net bag containing the tethered helium balloon is open and the net rope of the opening is fixedly connected to the ground, the net bag node connected to the sub-controller is below the net bag node connected to the LED light source group connected to the sub-controller.

6. The aerial LED screen according to claim 3, characterized in that, The LED light source group is connected to the surface of the tethered helium balloon via a connector, including: The light strip body is connected to the tethered helium balloon via a light strip fixing buckle fixedly installed on the surface of the tethered helium balloon. In the buckled state, the light strip fixing buckle can fix the light strip body inside the light strip fixing buckle to the surface of the tethered helium balloon.

7. The aerial LED screen according to claim 6, characterized in that, The plurality of LED light source groups are connected to the surface of the tethered helium balloon by a plurality of steel wire ropes; wherein each steel wire rope is connected end to end and passes through through holes at the same latitude and height on each of the light strip bodies along the latitude direction of the tethered helium balloon.

8. The aerial LED screen according to claim 7, characterized in that, A connecting hole is provided on the light strip body at a position perpendicular to the through hole. The connecting hole is threaded, and the steel wire rope passing through the through hole is fixed to the through hole by a screw that is screwed to the thread.

9. An aerial LED display system, characterized in that, Including an aerial LED screen as described in any one of claims 1-8, and a tethered helium balloon.

10. The aerial LED display system according to claim 9, characterized in that, A light strip fixing buckle is provided at a preset position on the surface of the tethered helium balloon; The preset location includes multiple location groups, and each location group includes multiple location points at the same latitude and altitude; furthermore, any two location points in any two adjacent location groups correspond to different meridians.

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