Aerial LED screen and aerial LED display system

Abstract

The utility model discloses an air LED screen and an air LED display system, relates to the technical field of display screens, can be applied to a mooring helium balloon, and specifically comprises a plurality of LED light source sets connected to the surface of the mooring helium balloon through connecting pieces, and each LED light source set comprises a plurality of LED point light sources; and the main controller responds to a control instruction received by the communication module and sends a control signal to the sub-controllers, so that the sub-controllers control the LED point light sources in the LED light source groups connected with the sub-controllers. The buoyancy provided by the helium balloon can drive the LED screen arranged on the helium balloon to lift off, so that the limitation of a traditional ground display mode is broken through; moreover, after the power interface is connected with a power supply, a user can control the light-emitting state of the LED dot matrix on the surface of the tethered helium balloon through the main controller and the sub-controller, and finally an all-dimensional, high-quality and stable aerial image display task is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of display screens, and in particular to an aerial LED screen and an aerial LED display system. Background Art

[0002] 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 long-distance projection will cause light attenuation problems, resulting in poor brightness and clarity of the aerial projection images. Moreover, in projection solutions using tethered helium balloons as carriers, the tethered helium balloons may be displaced by wind speed and airflow. In this case, the ground projector cannot track and focus on the position of the floating balloon in real time, resulting in inaccurate projection position fusion of the ground projector and blurred projection images. Based on the above, the display effect of current aerial display solutions is poor.

[0003] Therefore, how to achieve high-quality aerial image display tasks has become a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0004] In view of the above problems, the present application provides an aerial LED screen and an aerial LED display system to achieve high-quality aerial image display tasks.

[0005] The specific plan is as follows:

[0006] In a first aspect, the present application provides an aerial LED screen, which is applied to a tethered helium balloon. The aerial LED screen comprises:

[0007] a display module, the display module comprising a plurality of LED light source groups, the LED light source groups being connected to the surface of the tethered helium balloon via a connector, the LED light source groups comprising a plurality of LED point light sources, the LED point light sources in the display module forming a spherical LED display dot matrix on the surface of the tethered helium balloon in a filled state;

[0008] A main controller and a sub-controller connected to the main controller; the main controller includes a communication module, and the main controller is used to: send a control signal to the sub-controller in response to a control instruction received through the communication module; each output port of the sub-controller is connected to the plurality of LED light source groups, and the sub-controller is used to control the LED point light sources in the connected LED light source groups according to the received control signal;

[0009] Wherein, the power supply interfaces of the plurality of LED light source groups, the main controller and the sub-controllers are used to connect to a power supply.

[0010] In a possible implementation, the LED light source group includes a light strip body, and a plurality of fixing members for fixing the LED point light sources are provided on the light strip body, and the LED point light sources are arranged on the light strip body through the fixing members.

[0011] In a possible implementation, the LED point light sources in the LED light source group are arranged along the meridian direction of the tethered helium balloon.

[0012] In a possible implementation, the exterior of the tethered helium balloon is wrapped with a net bag;

[0013] The LED light source group is connected to the surface of the tethered helium balloon through a connector, and includes:

[0014] The LED light source group is connected to the mesh portion of the net bag that wraps the balloon through a first connecting piece.

[0015] In a possible implementation, the LED light source groups connected to each of the sub-controllers are adjacent to each other;

[0016] The sub-controller is connected to the net rope of the opening part of the net bag through a second connecting piece; when the opening part of the net bag wrapped with the tethered helium balloon is opened and the net rope of the opening part 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.

[0017] In a possible implementation, the LED light source group is connected to the surface of the tethered helium balloon via a connector, including:

[0018] The light strip body is connected to the tethered helium balloon via a light strip fixing buckle fixedly arranged on the surface of the tethered helium balloon. The light strip fixing buckle in the buckled state can fix the light strip body inside the light strip fixing buckle to the surface of the tethered helium balloon.

[0019] In one possible implementation, the plurality of LED light source groups are connected to the surface of the tethered helium balloon via 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 height provided on each of the light strip bodies along the latitude direction of the tethered helium balloon.

[0020] In a possible implementation, a connection hole is provided on the light strip body at a position perpendicular to the through hole, the connection hole is provided with a thread, and the steel wire rope passing through the through hole is fixed to the through hole by a screw screwed to the thread.

[0021] A second aspect of the present application provides an aerial LED display system, comprising a tethered helium balloon and the aerial LED screen described in any implementation of the first aspect.

[0022] In a possible implementation, a light strip fixing buckle is provided at a preset position on the surface of the tethered helium balloon;

[0023] The preset positions include a plurality of position groups, each position group includes a plurality of position points at the same latitude and altitude; and any two position points in any two position groups with adjacent latitudes and altitudes correspond to different longitudes.

[0024] By means of the above technical solution, the present application provides an aerial LED screen for use with a tethered helium balloon, specifically comprising: a plurality of LED light source groups connected to the surface of the tethered helium balloon via connectors, each LED light source group including a plurality of LED point light sources; a main controller and a sub-controller, wherein the main controller sends a control signal to the sub-controller in response to a control instruction received by a communication module, so that the sub-controller controls the LED point light sources in the connected LED light source groups. On this basis, when the tethered helium balloon is filled with helium, the buoyancy provided by the helium balloon can drive the aerial LED screen installed thereon into the air, thereby breaking through the limitations of traditional ground-based display methods; after the power supply interfaces of each component are connected to the corresponding power supply, the LED dot matrix emits light, and the user can control the lighting state of the LED dot matrix on the surface of the tethered helium balloon through the main controller and the sub-controller, ultimately achieving a full-scale, high-quality, and stable aerial image display task, helping to provide users with a full-scale, immersive visual experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0026] Figure 1 This is a structural block diagram of an aerial LED screen according to an embodiment of the present application;

[0027] Figure 2 The circuit structure diagram of the aerial LED screen is shown as an example;

[0028] Figure 3 A schematic diagram of the structure of an aerial LED screen provided in an embodiment of the present application;

[0029] Figure 4 A schematic diagram showing the display effect of the aerial LED screen provided by this application is shown;

[0030] Figure 5 A schematic diagram showing the structure of a net bag wrapped with a balloon when the opening portion is tightened;

[0031] Figure 6 A schematic diagram showing the structure of a net bag wrapped with a balloon when the opening portion is opened;

[0032] Figure 7 A schematic diagram showing the placement of the LED light source group on the surface of the tethered helium balloon is shown;

[0033] Figure 8 A schematic diagram illustrating the location of the sub-controller when the net bag is partially opened;

[0034] Figure 9 A schematic diagram illustrating the position of the sub-controller when the opening of the net bag is tightened is shown;

[0035] Figure 10 Shows a schematic structural diagram of the light strip fixing buckle;

[0036] Figure 11 Shows one of the schematic diagrams for connecting the light strip body and the wire rope;

[0037] Figure 12 Shows the second schematic diagram of the connection between the light strip body and the wire rope;

[0038] Figure 13 Shows a schematic diagram of the connection between the light strip body and the tethered helium balloon;

[0039] Figure 14 A front view schematic diagram of an aerial LED screen connected to a tethered helium balloon via a light strip fixing buckle is shown;

[0040] Figure 15 A bottom-up schematic diagram of an aerial LED screen connected to a tethered helium balloon via a light strip fixing buckle is shown;

[0041] Figure 16 A schematic diagram showing the location of the fixing buckles for the light strips on the surface of a tethered helium balloon is shown. DETAILED DESCRIPTION

[0042] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application. The terms used in the implementation methods of the present application are only used to explain the specific embodiments of the present application and are not intended to limit the present application. It is known to those skilled in the art that with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0043] This application provides an aerial LED screen and an aerial LED display system to achieve high-quality aerial image display tasks.

[0044] The present application provides an aerial LED screen, which is applied to a tethered helium balloon.

[0045] Optionally, the tethered helium balloon can be a double-airbag structure, specifically composed of a helium bag and an air bag, wherein the helium bag is constant and the air bag is provided with an automatic constant pressure device so that the tethered helium balloon always remains in a filled state. In addition, the tethered helium balloon can be made of materials such as modified polyurethane and Viktorin fabric. Based on this, the tethered helium balloon in a filled state can have a hard effect to provide support for the LED screen arranged thereon, thereby providing a basis for ensuring the display stability of the LED screen. It should be noted that in order to ensure the suspension effect and aerial display effect of the LED screen in the air, the size of the tethered helium balloon can be determined based on the total weight of the helium balloon provided with the aerial LED screen and the buoyancy of the helium balloon. Exemplarily, the diameter of the tethered helium balloon can be not less than 15 meters.

[0046] Figure 1 This is a structural diagram of an aerial LED screen according to an embodiment of the present application, combined with Figure 1 As shown, the aerial LED screen may include: a display module 1 and a control module 2.

[0047] Specifically, the display module 1 may include several LED light source groups, and the LED light source groups are connected to the surface of the tethered helium balloon through connectors; the LED light source groups may include multiple LED point light sources.

[0048] The LED point light sources in the display module 1 form a spherical LED display matrix on the surface of the filled helium balloon. This allows the balloon to 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, that is, the denser the arrangement of the LED point light sources, the better the display effect. The number of LED point light sources in the display module 1 can be positively correlated with the diameter of the tethered helium balloon to ensure the display quality of the LED screen.

[0049] The control module 2 may include a main controller 20 and a sub-controller 21 connected to the main controller 20 .

[0050] In which, the main controller 20 includes a communication module, and the main controller 20 can be used to: send a control signal to the sub-controller 21 in response to a control instruction received through the communication module. Optionally, the control instruction received by the main controller can be an instruction sent by 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 in order to meet the control requirements of each LED light source group, the total number of output channels of the sub-controller 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-controller can be multiple sub-controllers. Based on this, in one possible implementation, the main controller can be connected to each sub-controller separately through a network cable; in another possible implementation, the main controller and each sub-controller can be interconnected in a chain connection manner. In this case, the sub-controller can receive control signals directly from the main controller through the network cable or receive control signals from other sub-controllers through the network cable.

[0051] Each output port of the sub-controller 21 is connected to the plurality of LED light source groups, and the output ports connected to the LED light source groups correspond 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 control signals received.

[0052] In addition, the power supply 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.

[0053] In a possible implementation, the aerial LED screen may further include: a power transformer 3 .

[0054] 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 an LED power supply voltage that powers the LED light source group. Based on this, the power transformer can also be referred to as an LED driver power supply. It should be noted that due to the limited number of output ports of a single power transformer, to meet the power supply requirements of each LED light source group, the power transformer can be multiple power transformers.

[0055] Optionally, the power transformer may be a DC24V-1000W LED power supply, such as a rainproof LED power supply with filtering and using a semi-potting process.

[0056] Figure 2 The circuit structure diagram of the aerial LED screen is shown. Figure 2As shown, the power supply interfaces of the power transformer 3, the sub-controller 21 and the main controller 20 are electrically connected to a 220V power supply, wherein the wires used for the connection may be 4 square wires; the multiple LED light source groups corresponding to the sub-controller 21 are electrically connected to the power transformer 3, wherein the wires used for the connection may be 2.5 square wires; the multiple LED light source groups corresponding to the sub-controller 21 are LED light source groups connected to the output port of the sub-controller 21, wherein the connection may refer to connection through 2.5 square wires; in addition, the main controller 20 and the sub-controller 21 may be connected via a network cable to realize control signal transmission between the controllers.

[0057] In one possible implementation, the power interfaces of each component can be connected to a ground power source via a tensile cable, which then powers the aerial LED screen. The components can include an LED light source group, a main controller, sub-controllers, and a power transformer.

[0058] In another possible implementation, a power supply battery can be provided on the tethered helium balloon, and the LED screen in the air can be powered by the electrical connection between the power supply interface of each component and the power supply battery.

[0059] Based on the above scheme, this embodiment provides an aerial LED screen for use with a tethered helium balloon, specifically comprising: a plurality of LED light source groups connected to the surface of the tethered helium balloon via connectors, each LED light source group including a plurality of LED point light sources; a main controller and a sub-controller, wherein the main controller responds to control instructions received by the communication module and sends a control signal to the sub-controller, so that the sub-controller controls the LED point light sources in the connected LED light source groups. On this basis, when the tethered helium balloon is filled with helium, the buoyancy provided by the helium balloon can drive the LED screen installed thereon into the air, thereby breaking through the limitations of traditional ground-based display methods; after the power supply interface is connected to the power supply, the LED dot matrix emits light, and the user can control the lighting state of the LED dot matrix on the surface of the tethered helium balloon through the main controller and the sub-controller, ultimately achieving a full-scale, high-quality, and stable aerial image display task, helping to provide users with a full-scale, immersive visual experience.

[0060] In one or more embodiments provided in the present application, the LED light source group may include a light strip body, on which a plurality of fixing members for fixing the LED point light sources are provided, and the LED point light sources are arranged on the light strip body through the fixing members.

[0061] Based on the above, an LED light strip composed of multiple LED point light sources can be used as an LED light source group. This embodiment, through the modular design of the LED light source group, greatly facilitates the installation and maintenance of the aerial LED screen, reduces the implementation cost and maintenance difficulty of the aerial LED screen, and to a certain extent improves the service life and reliability of the aerial LED screen. In one possible implementation, the LED point light sources can be connected to the waterproof protective case using a parent-child buckle, and then connected to the fixing member.

[0062] In one or more embodiments provided in the present application, the LED point light sources in the LED light source group are arranged along the meridian direction of the tethered helium balloon.

[0063] Based on this, the locations where the LED light source group connects to the surface of the tethered helium balloon can include: multiple points arranged along the longitudinal direction. In solutions that arrange LED point light sources along the latitudinal direction or other directions, in order 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, a large number of connectors are required. However, this solution utilizes the gravity of the LED light strip to arrange the LED light strip along the longitudinal direction of the tethered helium balloon, which can reduce the number of connectors and help ensure the stable display of the LED dot matrix.

[0064] In one possible implementation, several identical LED light strips can be arranged along the meridian direction at preset intervals starting from a preset latitude, thereby reducing control complexity to a certain extent. It should be noted that there may 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.

[0065] In one possible implementation, the fixings on a light strip body can be arranged at fixed intervals; in another possible implementation, the fixings on a light strip body can also be arranged at variable intervals, wherein the interval between adjacent fixings can be related to their positions on the tethered helium balloon, such as being positively correlated with the latitude of the position, so as to reduce the LED setting interval at the equatorial position of the tethered helium balloon.

[0066] For example, Figure 3 This is a schematic diagram of the structure of an aerial LED screen provided by an embodiment of the present application. Several LED light strips are arranged along the longitudinal direction (i.e., longitudinal direction) of a tethered helium balloon, forming an LED display matrix on the surface of the filled helium balloon. The control module can be arranged at the bottom of the tethered helium balloon, and the aerial LED screen can be connected to a power source via a cable. On this basis, Figure 4The following is a schematic diagram illustrating the display effect of the aerial LED screen made based on this embodiment. This application sets a number of LED point light sources and corresponding drive control circuits on the surface of a tethered helium balloon to construct a spherical screen that can float in the air. On this basis, the light-emitting state of the LED point light sources evenly distributed on the surface of the balloon is controlled to achieve the aerial image display task, solving the problem that the LED screen mounted on the curtain wall of a spherical building can only provide a large hemispherical screen effect and cannot be lifted into the air. In addition, the aerial image display is achieved through LED light emission, solving the problems of unclear images and inaccurate positions. In addition, the size of tethered helium balloons is often large, so that whether in a vast square, a large event site or an outdoor scenic spot, the LED spherical screen set on the surface of the tethered helium balloon can bring a full-dimensional and immersive visual experience to the audience.

[0067] Next, the connection method between the LED light source group and the tethered helium balloon is exemplified.

[0068] In one or more embodiments provided in the present application, the outside of the tethered helium balloon is wrapped with a net bag.

[0069] For example, Figure 5 A schematic diagram of the structure of a net bag wrapped with a balloon is shown with the opening portion tightened. The tightened opening portion corresponds to the state when the tethered helium balloon is suspended in the air. In this case, the net rope at the opening portion is connected to the ring below the helium balloon. Figure 6 The schematic diagram shows the structure of the net bag containing the balloon with the opening portion open. The opening portion corresponds to the state when the tethered helium balloon is fixed to the ground. In this case, the net rope in the opening portion is fixedly connected to a fixed 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 via a connector, which may include:

[0070] The LED light source group is connected to the mesh portion of the net bag for wrapping the balloon through a first connecting piece.

[0071] Combine Figure 5 and Figure 6 As shown, the outer layer of the tethered helium balloon is covered with a uniformly distributed and stable mesh bag, and the tethered helium balloon in a filled state fits in with the mesh bag on its surface. Based on this, the LED light source group can be connected to the mesh bag through a first connecting member to achieve the purpose of setting LED point light sources on the surface of the tethered helium balloon. Optionally, the first connecting member can be a buckle or a rolled belt. It should be noted that compared with the existing tethered helium balloon mesh bag, the mesh portion of the mesh bag described in this application is closer to the bottom of the balloon, so that the LED point light source near the bottom of the helium balloon can be stably connected to the surface of the helium balloon.

[0072] In one possible implementation, the LED light source group can be connected to the net bag at the grid nodes of the net bag through a first connecting member.

[0073] Based on the above, Figure 7 The schematic diagram shows the layout of the LED light source group on the surface of the tethered helium balloon. Figure 7 As shown, by arranging the LED light source group according to the texture of the net bag, that is, arranging the fixing parts containing LED point light sources at the nodes of the net bag, the connection stability between the LED light source group and the net bag can be improved to a certain extent, thereby providing a basis for ensuring the stability of the image display on the surface of the tethered helium balloon.

[0074] In one or more embodiments provided in the present application, the LED light source groups connected to each sub-controller are adjacent to each other.

[0075] On the basis of the above, the sub-controller is connected to the net rope of the opening part of the net bag through a second connecting member. Exemplarily, the second connecting member can be a rolling belt. Moreover, when the opening part of the net bag wrapped with the tethered helium balloon is opened and the net rope of the opening part 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, such as Figure 8 When the opening of the net bag is tightened, the sub-controller is located at the bottom or below the bottom of the tethered helium balloon where the LED point light source is not provided, as shown Figure 9 shown.

[0076] Based on the above, the LED light source groups and sub-controllers that are electrically connected are arranged adjacent to each other, which simplifies the connection relationship between modules to a certain extent and helps save installation and maintenance costs.

[0077] In one or more embodiments provided herein, the LED light source group is connected to the surface of the tethered helium balloon via a connector, and may include:

[0078] The light strip body is connected to the tethered helium balloon via a light strip fixing buckle fixedly arranged on the surface of the tethered helium balloon.

[0079] Among them, the two free ends of a light strip fixing buckle are respectively provided with male and female buckles 101 and 102, and the two free ends are parallel to the latitude direction of the tethered helium balloon. For example, Figure 10A schematic diagram of the structure of a light strip fixing buckle is shown; when the light strip fixing buckle is engaged, the light strip body within the buckle can be fixedly connected to the surface of the tethered helium balloon. Furthermore, the width of the light strip body at a first position can be greater than the width at a second position, where the first position is where the fixing element is located, and the second position is between two adjacent fixing elements. Based on this, the light strip body within the buckle can be the portion between two adjacent fixing elements on the light strip body. In this case, the inner ring circumference of the buckle in the engaged 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.

[0080] In one or more embodiments provided in the present application, the plurality of LED light source groups are connected to the surface of the tethered helium balloon via a plurality of steel ropes.

[0081] Wherein, each steel wire rope is connected end to end and passes through the through holes at the same latitude height provided on each of the light strip bodies along the latitude direction of the tethered helium balloon.

[0082] In other words, the light strip body is provided with a plurality of through-holes, which are through-holes in the latitudinal direction of the tethered helium balloon, i.e., transverse through-holes. The steel wire rope can stably maintain the LED point light sources at the same latitude at the same height, reducing the number of connectors required on the surface of the tethered helium balloon. It should be noted that the length of the closed steel wire rope can be consistent with the target length, where the target length refers to the latitudinal length of the tethered helium balloon at the latitude of the steel wire rope.

[0083] In a possible implementation, a connection hole is provided on the light strip body at a position perpendicular to the through hole, the connection hole is provided with a thread, and the steel wire rope passing through the through hole is fixed to the through hole by a screw screwed to the thread.

[0084] Take the LED point light source composed of two lamp beads as an example, Figure 11 and Figure 12 The diagram shows the connection between the light strip body and the steel wire rope. The through hole 115 provided between the two fixing members 113 on the light strip body 112 can form a T-shaped hole structure with the connecting hole perpendicular to the through hole 115. The screw 114 screwed to the connecting hole can fix the steel wire rope 111 to the through hole 115, thus avoiding the display abnormality caused by the movement of the LED light strip connected in series on the steel wire rope, thereby ensuring the display stability of the aerial LED screen. In addition, Figure 12As shown, the LED point light source 122 can be buckled with the transparent waterproof housing 121 and then disposed in the fixing member 113, and 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 lamp bead, and this application does not limit the composition of the LED point light source.

[0085] Figure 13 Shows the connection diagram of the light strip body and the tethered helium balloon, combined with Figure 13 As shown, a light strip fixing buckle 131 is provided on the tethered helium balloon, and the two free ends of the light strip fixing buckle are wrapped around the position between the two fixing parts on the light strip body and buckled, and the steel wire rope 111 passes through the through holes 115 at the same latitude height on each light strip body and is connected end to end, ultimately achieving the purpose of fixing the LED light strip on the surface of the helium balloon.

[0086] Based on the above, Figure 14 and Figure 15 The schematic diagram of the structure of the aerial LED screen connected to the tethered helium balloon through the light strip fixing buckle and steel wire rope is shown from the front and bottom perspectives respectively. Figure 14 As shown, this connection method can effectively reduce the number of light strip fixing buckles set on the tethered helium balloon, such as Figure 15 As shown, the main controller 20 can be set at the bottom of the helium balloon, the power transformer 3 and the sub-controller 21 can be set in a ring shape, and 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 through a network cable, or is connected to its adjacent sub-controller through a network cable 151.

[0087] The following describes the aerial LED display system provided in the embodiment of the present application.

[0088] An embodiment of the present 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.

[0089] The aerial LED screen may include:

[0090] a display module, the display module comprising a plurality of LED light source groups, the LED light source groups being connected to the surface of the tethered helium balloon via a connector, the LED light source groups comprising a plurality of LED point light sources, the LED point light sources in the display module forming a spherical LED display dot matrix on the surface of the tethered helium balloon in a filled state;

[0091] A main controller and a sub-controller connected to the main controller; the main controller includes a communication module, and the main controller is used to: send a control signal to the sub-controller in response to a control instruction received through the communication module; each output port of the sub-controller is connected to the plurality of LED light source groups, and the sub-controller is used to control the LED point light sources in the connected LED light source groups according to the received control signal;

[0092] Wherein, the power supply interfaces of the plurality of LED light source groups, the main controller and the sub-controllers are used to connect to a power supply.

[0093] In one or more embodiments provided in the present application, the LED light source group includes a light strip body, on which a plurality of fixing members for fixing the LED point light sources are provided, and the LED point light sources are provided on the light strip body through the fixing members.

[0094] In one or more embodiments provided in the present application, the LED point light sources in the LED light source group are arranged along the meridian direction of the tethered helium balloon.

[0095] In one or more embodiments provided herein, the tethered helium balloon is wrapped with a net bag on the outside of the balloon;

[0096] The LED light source group is connected to the surface of the tethered helium balloon through a connector, and includes:

[0097] The LED light source group is connected to the mesh portion of the net bag that wraps the balloon via a first connector. In one or more embodiments provided herein, the LED light source groups connected to each sub-controller are adjacent to each other;

[0098] The sub-controller is connected to the net rope of the opening part of the net bag through a second connecting piece; when the opening part of the net bag wrapped with the tethered helium balloon is opened and the net rope of the opening part 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.

[0099] In one or more embodiments provided in the present application, a light strip fixing buckle is provided at a preset position on the surface of the tethered helium balloon;

[0100] The preset positions include a plurality of position groups, each position group includes a plurality of position points at the same latitude and altitude; and any two position points in any two position groups with adjacent latitudes and altitudes correspond to different longitudes.

[0101] For example, Figure 16 Shows the location of the fixed buckle of the light strip on the surface of the tethered helium balloon. Figure 16 As shown, two sets of position points with adjacent latitudes and altitudes are not aligned, while two sets of position points that are one row apart are aligned, i.e., on the same meridian. This arrangement can effectively reduce the number of light strip fixing buckles installed on the surface of the tethered helium balloon.

[0102] On the basis of the above, the LED light source group is connected to the surface of the tethered helium balloon through a connector, including:

[0103] The light strip body is connected to the tethered helium balloon via a light strip fixing buckle fixedly arranged on the surface of the tethered helium balloon. The light strip fixing buckle in the buckled state can fix the light strip body inside the light strip fixing buckle to the surface of the tethered helium balloon.

[0104] In one or more embodiments provided in the present application, the plurality of LED light source groups are connected to the surface of the tethered helium balloon through a plurality of steel ropes; wherein each steel rope is connected end to end and passes through the through holes at the same latitude height provided on each of the light strip bodies along the latitude direction of the tethered helium balloon.

[0105] In one or more embodiments provided in the present application, a connecting hole is provided on the light strip body at a position perpendicular to the through hole, and 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 the steel wire rope passing through the through hole is fixed to the through hole by a screw screwed to the thread.

[0106] 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.

[0107] Among them, the length of a single light strip is 22 meters. On an 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 wire ropes on the same longitude of the helium balloon can be a multiple of 25 cm. A light strip fixing buckle can be set every 25 light strips along the latitude direction, and the fixing buckles at adjacent latitudes are staggered so that the light strip fixing buckles are evenly distributed on the balloon surface in a diamond network. Optionally, the distance between any two fixing buckles may not exceed 2 meters. In this case, the spacing between the light strips at the equator is 7.2 cm. The higher the latitude, the denser the spacing between the light strips, until the spacing between the light strips is almost zero. The distance from the highest end of the light strip to the top of the sphere and the distance from the lowest end of the light strip to the bottom of the sphere can be equal, both 3.2 m.

[0108] According to the above configuration, the combined weight of the helium balloon and the aerial LED screen is approximately 1,500 kilograms. The volume of the 18-meter-diameter balloon is 3,052 cubic meters. Each cubic meter of helium lifts 1.05 kilograms, so the balloon can lift approximately 3 tons at its maximum capacity. Based on this, combined with the tethered helium balloon's dual-bladder structure, the helium balloon can be filled with approximately 1,800 cubic meters of helium, with the remaining space filled with air bladders.

[0109] In addition, multiple sets of fixed ropes can be used to fix the tethered helium balloon through connecting rings and fixing rings to maintain flight stability, so that the helium balloon can resist external interference and reduce shaking and deviation during the ascension and suspension process; on this basis, the connecting component can control the lifting and lowering of the helium balloon through the connecting rope. Combined with lifting devices such as winches and steel ropes fixed to the ground, precise control of the takeoff and landing of the helium balloon can be achieved, ensuring the safety and accuracy of the operation, and providing a basis for ensuring that the display activities can proceed as planned.

[0110] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity from another, and do not necessarily require or imply any actual relationship or order between these entities. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that an article or device comprising a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such article or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the article or device comprising the element.

[0111] The various embodiments in this specification are described in a progressive manner, and 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 referenced to each other.

[0112] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An aerial LED screen, characterized in that: Applied to tethered helium balloons, the aerial LED screen includes: a display module, the display module comprising a plurality of LED light source groups, the LED light source groups being connected to the surface of the tethered helium balloon via a connector, the LED light source groups comprising a plurality of LED point light sources, the LED point light sources in the display module forming a spherical LED display dot matrix on the surface of the tethered helium balloon in a filled state; A main controller and a sub-controller connected to the main controller; the main controller includes a communication module, and the main controller is used to: send a control signal to the sub-controller in response to a control instruction received through the communication module; each output port of the sub-controller is connected to the plurality of LED light source groups, and the sub-controller is used to control the LED point light sources in the connected LED light source groups according to the received control signal; Wherein, the power supply interfaces of the plurality of LED light source groups, the main controller and the sub-controllers are used to connect to a power supply.

2. The aerial LED screen according to claim 1, characterized in that: The LED light source group includes a light strip body, and a plurality of fixing members for fixing the LED point light sources are provided on the light strip body. The LED point light sources are arranged on the light strip body through the fixing members.

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 outer portion of the tethered helium balloon is wrapped with a net bag; The LED light source group is connected to the surface of the tethered helium balloon through a connector, and includes: The LED light source group is connected to the mesh portion of the net bag that wraps the balloon through a first connecting piece.

5. The aerial LED screen according to claim 4, characterized in that: The LED light source groups connected to each sub-controller are adjacent to each other; The sub-controller is connected to the net rope of the opening part of the net bag through a second connecting piece; when the opening part of the net bag wrapped with the tethered helium balloon is opened and the net rope of the opening part 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 through a connector, and includes: The light strip body is connected to the tethered helium balloon via a light strip fixing buckle fixedly arranged on the surface of the tethered helium balloon. The light strip fixing buckle in the buckled state 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 via a plurality of steel cables, wherein each steel cable is connected end to end and passes through through holes at the same latitude height provided 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 provided with a thread. The steel wire rope passing through the through hole is fixed to the through hole by a screw screwed to the thread.

9. An aerial LED display system, characterized in that: The invention comprises the aerial LED screen according to any one of claims 1 to 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 positions include a plurality of position groups, each position group includes a plurality of position points at the same latitude and altitude; and any two position points in any two position groups with adjacent latitudes and altitudes correspond to different longitudes.

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