KR20160017450A - System and Method for LED Display in the Mid-Air - Google Patents

Abstract

Disclosed are a system and a method for displaying a light-emitting diode (LED) in midair. The system for displaying an LED in midair, comprises: a display frame in which a plurality of LED bars are disposed at regular intervals; at least one unmanned aerial device which carries the display frame at a certain altitude; and a server which transmits contents to be displayed to the LED bars.

Description

[0001] The present invention relates to a system and method for displaying an aerial LED,

The present invention relates to a public LED display system and method. More particularly, the present invention relates to an aerial LED display system and method for displaying large information in the air at outdoor performances and various events.

Conventionally, the spread of large LED electronic signboards has a system in which an LED bar is installed at a regular interval in a tunnel of a subway, and a moving picture is displayed on the window of the train using the afterimage effect of the eyes when the train is moved. In addition, a rotary electric display panel for displaying a moving picture by rotating an LED bar with the same principle has been widely used.

However, the conventional electric signboard has a limitation in the installation space, and since it is installed on the ground in general, there is a limitation that the information transmission can be restricted to the people around the installation location. Therefore, a billboard is required to display the advertisement or publicity contents in various events such as performances and events, so that all the crowd can see it.

The object of the present invention is to provide a method and apparatus for displaying an image by an afterimage effect of a snowball by moving an LED bar in the air by moving it horizontally when reaching a certain altitude by an unmanned aerial vehicle, And to provide a public LED display system and method.

It is also an object of the present invention to provide an aerial LED display system and method in which an LED bar is moved to the air by an unmanned aerial vehicle and operated so that there is no restriction on the installation place,

According to an aspect of the present invention, there is provided an aerial LED display system comprising: a display frame in which a plurality of LED bars (Light Emitting Diode Bar) At least one unmanned aerial vehicle for transporting the display frame at a predetermined altitude; And a server for directly transmitting the displayed contents to the plurality of LEDs.

One or a plurality of the unmanned aerial vehicles may be provided, and when the display frame is transported at a certain altitude and reaches the predetermined altitude, it may be moved in a horizontal direction or in a circular shape having a certain radius.

The display frame may be displayed horizontally with the ground surface by the unmanned aerial vehicle and displayed in a downward direction, or may be vertically disposed with the ground surface by the unmanned aerial vehicle and displayed in both front and rear directions.

A display frame remote controller for controlling brightness and information change of the display frame; And an unmanned aerial vehicle remote controller for controlling the operation of the unmanned aerial vehicle.

Wherein the plurality of LED bars comprise one master LED bar and a plurality of slave LED bars, wherein the master LED bar performs at least one of connection to a server, connection to an LED remote controller, and speed calculation, Can be controlled.

The master LED bar and the plurality of slave LED bars may be connected to at least one of a high-speed data network for content transmission, a real-time sensor network for content synchronization, and a power line.

According to another aspect of the present invention, there is provided a method of displaying an aerial LED according to the present invention, comprising the steps of: transporting a display frame having a plurality of LED bars arranged at predetermined intervals using at least one unmanned aerial vehicle at a predetermined height; Transmitting content displayed from the server directly to the plurality of LEDs; And moving the display frame in a horizontal direction or in a circular shape having a predetermined radius using the unmanned aerial vehicle.

The display frame may be displayed horizontally with the ground surface by the unmanned aerial vehicle and displayed in a downward direction, or may be vertically disposed with the ground surface by the unmanned aerial vehicle and displayed in both front and rear directions.

The method of claim 1, further comprising controlling brightness and information change of the display frame using a display frame remote controller, wherein the step of moving the display frame in a horizontal direction or a circle having a certain radius using the unmanned aerial vehicle The operation of the unmanned aerial vehicle can be controlled by using the device remote controller.

Wherein the plurality of LED bars comprises one master LED bar and a plurality of slave LED bars, and the master LED bar performs at least one of connection to a server, connection with an LED remote controller, and speed calculation to control the plurality of slave LED bars And the master LED bar and the plurality of slave LED bars may be connected to at least one of a high speed data network for content transmission, a real time sensor network for content synchronization, and a power supply line.

According to the embodiments of the present invention, when an LED bar is transported to the air by an unmanned aerial vehicle and then moved horizontally when reaching a certain altitude, the image is displayed by the afterimage effect of the snow, A public LED display system and method can be provided.

In addition, it is possible to provide an aerial LED display system and method in which an LED bar is moved to the air by an unmanned aerial vehicle and operated so that there is no restriction on the installation place, and a large amount of information is transmitted.

1 is a diagram illustrating a public LED display system according to an embodiment of the present invention.
2 is a diagram illustrating an example of a public LED display system according to an embodiment of the present invention.
3 is a view illustrating another example of a public LED display system according to an embodiment of the present invention.
4 is a schematic diagram illustrating an aerial LED illumination system in accordance with an embodiment of the present invention.
5 is a view illustrating a display frame according to an embodiment of the present invention.
6 is a diagram illustrating a screen of a public LED display system according to an exemplary embodiment of the present invention.
FIG. 7 is a diagram illustrating a screen of a public LED display system according to an embodiment of the present invention.
8 is a diagram illustrating a screen of a public LED display system according to an embodiment of the present invention.
9 is a flowchart illustrating a method of displaying an aerial LED according to an embodiment of the present invention.
10 is a diagram illustrating an example of operation of an unmanned aerial vehicle according to an embodiment of the present invention.
FIG. 11 is a diagram illustrating a procedure for downloading format information according to an embodiment of the present invention. FIG.
12 is a diagram illustrating an example of screen display of an aerial LED display system according to an embodiment of the present invention.
FIG. 13 is a diagram illustrating a procedure of downloading format information according to an embodiment of the present invention.
FIG. 14 is a diagram illustrating a procedure of downloading format information according to an embodiment of the present invention.
15 is a diagram illustrating an example of a display frame type according to an embodiment of the present invention.
16 is a diagram illustrating an example of a display according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to a system for displaying information in the air while moving an LED (Light Emitting Diode) electric signboard in the air by means of an unmanned aerial vehicle (UAV). For this purpose, an LED electric signboard design and information display system, .

1 is a diagram illustrating a public LED display system according to an embodiment of the present invention.

Referring to Figure 1, a public LED display system may include a display frame 110, an unmanned aerial vehicle 120, and a server.

The display frame 110 may include a plurality of LEDs (Light Emitting Diode Bars) 111 having a predetermined interval. The display frame 110 may be horizontally disposed on the ground surface by the UAV 120 and displayed in a downward direction. In addition, the display frame 110 can be vertically disposed on the ground surface by the UAV 120 and displayed in front and rear directions.

Here, the plurality of LED bars 111 may consist of one master LED bar and a plurality of slave LEDs. The master LED bar may control at least one of the plurality of slave LED bars by performing at least one of connection with the server, connection with the LED remote controller, or speed calculation. In other words, the master LED bar can be connected to the server, connect to the LED remote controller, or calculate the traveling speed.

The unmanned aerial vehicle 120 may be an unmanned aerial vehicle (UAV) such as a drone or the like, and at least one of the UAVs may carry the display frame 110 at a certain height. At this time, one or more unmanned aerial vehicles 120 may be provided. When the unmanned aerial vehicle 120 reaches the predetermined altitude after the display frame 110 is transported at a predetermined altitude, the unmanned aerial vehicle 120 may move the display frame 110 horizontally. In addition, when the unmanned aerial vehicle 120 reaches a predetermined altitude, the display frame 110 can be moved to a circular shape (including an ellipse) having a predetermined radius.

The server may transmit the displayed content to the plurality of LED bars (111). In other words, the server can connect to the master LED of the plurality of LED bars 111 using wireless communication, and transmit the contents to be displayed through the display frame 110.

In addition, a display frame remote controller is further included to control the brightness and information change of the display frame.

It is also possible to further include an unmanned aerial vehicle remote controller to control the operation of the unmanned aerial vehicle.

As described above, when the LED bar is transported to the air by the unmanned aerial vehicle and reaches the predetermined altitude, the image can be displayed by the afterimage effect of the snow by moving horizontally.

2 is a diagram illustrating an example of a public LED display system according to an embodiment of the present invention.

Referring to FIG. 2, the public LED display system may include a display frame 210, an unmanned aerial vehicle 220, and a server, and the display frame 210 may be disposed horizontally . 1, the display frame is transported and moved using one unmanned aerial vehicle, but in FIG. 2, the display frame 210 can be more stably transported and moved using the plurality of unmanned aerial vehicles 220 .

The display frame 210 includes the plurality of LED bars 211 and may be displayed in a downward direction so that the contents such as images displayed on the ground surface can be identified.

Here, although not shown, the server may transmit the displayed content to the plurality of LED bars 211.

3 is a view illustrating another example of a public LED display system according to an embodiment of the present invention.

Referring to Figure 3, as in Figures 1 and 2, a public LED display system may include a display frame 310, an unmanned aerial vehicle 320, and a server. In FIG. 1 and FIG. 2, the display frame 310 is disposed in a horizontal direction with respect to the ground surface, but in FIG. 3, the display frame 310 may be disposed in a direction perpendicular to the ground surface. In addition, the display frame 310 may be vertically disposed on the ground surface by the UAV 320 so as to be displayed in both front and rear directions.

4 is a schematic diagram illustrating an aerial LED illumination system in accordance with an embodiment of the present invention.

4, a public LED display system may include a display frame, an unmanned aerial vehicle, a server 430, an unmanned aerial vehicle remote controller 440, and a display frame remote controller 450. In addition, the display frame includes a plurality of LED bars, and may include the master LED bar 410 and the plurality of slave LED bars 420.

Each of the plurality of LED bars may include an LED array, an FPGA, and an MCU. The FPGA of the master LED bar 410 may generate Block_sync and Pixel_sync, and generate a plurality of slave LED bars 420 Synchronized, and the MCU can manage system-wide operation and content.

The master LED bar 410 includes a LAN connection device for downloading the display information from the server, a GPS for position control, a TRX for communication with the remote controller, and an acceleration and direction sensor for measuring the speed of the unmanned aerial vehicle . Accordingly, the master LED bar 410 may be connected to the server or may be connected to the LED remote controller. Also, the master LED bar 410 may calculate the moving speed.

In addition, the master LED bar 410 and the plurality of slave LED bars 420 may be connected to a high-speed data network for content transmission, a real-time sensor network ), And a power line (Power Line).

The server 430 may transmit the displayed content to the master LED bar 410 using wireless communication.

The unmanned aerial vehicle remote controller 440 can control the operation of the unmanned aerial vehicle using wireless communication. At this time, basic operation information of the unmanned aerial vehicle such as altitude, operation pattern, speed, and time can be inputted through the unmanned aerial vehicle remote controller 440.

The display frame remote controller 450 controls the display frame using wireless communication, and can control the brightness and the information change of the display frame, if necessary.

5 is a view illustrating a display frame according to an embodiment of the present invention.

5, the display frame 510 includes a plurality of LED bars 520, each of which includes an LED array 521, a rechargeable battery 522, (523).

Accordingly, when a plurality of LED bars are carried in the air by the unmanned aerial vehicle and the bar reaches a certain altitude, the image can be displayed (displayed) by the afterimage effect of the eyes while moving horizontally.

6 to 8 are views showing a screen of an air LED display system according to an embodiment of the present invention.

6 to 8, an example of a design parameter of a screen of the public LED display system can be expressed as follows.

Interframe spacing = Bar_spacing x i, i = 0, 1, 2, ...

Frame_horizontal_size: Frame_vertical_size = 16: 9 (Example of HDTV standard)

Size of one screen: Frame_horizontal_size (m) x Frame_vertical_size (m)

Ex) 16m × 9m or 8m × 4.5m

Fusion of one screen: Pixel_horizontal_number × Pixel_vertical_number

Ex.) 1,920 (480) x 1080 (270) pixels

Drone_velocity: m / s or km / h, eg 8 m / s

At this time, the moving speed can be obtained by a speed measuring sensor.

Frame_rate: frames / s, eg 25 frames / s

Number of LED bars: LED_bar_number = Frame_rate

The spacing of the plurality of LED bars:

LED_bar_interval = Frame_horizontal_size / (LED_bar_number-1)

Pixel_vertical_width = Frame_vertical_size / Pixel_vertical_number

Pixel_horizontal_width = Pixel_vertical_width

Pixel_sync = Pixel_horizontal_width / Drone_velocity

9 is a flowchart illustrating a method of displaying an aerial LED according to an embodiment of the present invention.

Referring to FIG. 9, the method of displaying an aerial LED can be represented using the aerial LED display system described in FIGS. 1 to 8. FIG. At this time, the public LED display system may include a display frame, an unmanned aerial vehicle, and a server.

At step 910, at least one UAV may carry a display frame having a plurality of LED bars at regular intervals at a certain height.

In step 920, the content displayed from the server may be directly transmitted to the plurality of LEDs. Here, the plurality of LED bars may consist of one master LED bar and a plurality of slave LED bars. The master LED bar may control at least one of the plurality of slave LED bars by performing at least one of connection with the server, connection with the LED remote controller, and speed calculation. Further, the master LED bar and the plurality of slave LED bars may include a high-speed data network for content transmission, a real-time sensor network for content synchronization, a power line, Can be connected.

In step 930, the display frame may be moved in a horizontal direction or in a circular shape having a predetermined radius using the unmanned aerial vehicle. At this time, the display frame may be horizontally disposed on the ground surface by the unmanned aerial vehicle and displayed in a downward direction. Further, the display frame may be arranged vertically with the ground surface by the unmanned aerial vehicle and displayed in front and rear directions.

In addition, the method may further include controlling the brightness and the information change of the display frame using a display frame remote controller.

The step of moving the display frame in a horizontal direction or in a circular shape having a predetermined radius using the unmanned aerial vehicle may control the operation of the unmanned aerial vehicle using a remote controller of the unmanned aerial vehicle.

10 is a diagram illustrating an example of operation of an unmanned aerial vehicle according to an embodiment of the present invention.

Referring to FIG. 10, the unmanned aerial vehicle can carry the displayed display frame at a certain height, and after reaching a certain altitude, can fly in a circular or elliptical operation pattern having a straight line or a constant radius. After that, you can return to the ground after a certain time (Return to Home).

10 (a), the unmanned aerial vehicle first moves vertically on the ground surface to transport the display frame at a certain altitude, and then moves the display frame horizontally at a constant speed when reaching a certain altitude, It is possible to display the image by the afterimage effect of the image pickup device and return to the original position after a predetermined time.

In FIG. 10 (b), when the unmanned aerial vehicle reaches a certain altitude, the display frame can be moved to a circular or elliptical travel pattern having a certain radius. Although not shown, the operation pattern of the unmanned aerial vehicle is not limited to a straight line and a circular line but may have various operating patterns such as a curve.

FIG. 11 is a diagram illustrating a procedure for downloading format information according to an embodiment of the present invention. FIG.

Referring to FIG. 11, the display information downloading order can store the display information on the master LED bar through the wired or wireless LAN from the server, and the master LED bar can transmit the information directly to the plurality of slave LEDs through the high-speed data network .

In step 1110, initial values of a plurality of LED bars and blocks may be set. Here, one LED bar among the plurality of LED bars may be formed of a plurality of blocks. Therefore, a block represents a position in an LED bar _, and can be expressed as B _{i, j} = B _{Bar, Block} . The initial value of the LED bar can be set to i = 1, and the initial value of the block can be set to j = 1.

In step 1120, a B _{i, j} block may be downloaded to a plurality of LED bars.

In step 1130, one may be added to the previous value of the Block. That is, j = j + 1, and each B _{i, j} block can be downloaded. This can be repeated as many times as the number of blocks in one LED bar.

In step 1140, one may be added to the previous value of the LED bar (Bar). That is, i = i + 1, and each B _{i, j} block can be downloaded. This can be repeated as many times as the number of LED bars.

12 is a diagram illustrating an example of screen display of an aerial LED display system according to an embodiment of the present invention.

Referring to FIG. 12, for example, two screens can be displayed in an aerial LED display system having four LED bars. At this time, the position of the LED bar can be set to i, and the position of the block can be set to j, so that B _{i, j} = B _{Bar, Block} can be expressed. It is assumed that interframe spacing between frames is an integral multiple of Bar_spacing for convenience of design.

Here, when the size of the blank presentation space between frames is 2 x LED_bar_interval,

B _{i, j} : i = 1, 2, ..., LED_bar_number

  j = 1, 2, ..., LED_bar_number as Block number

In addition, the measurement period of the Drone_velocity (the speed of the unmanned aerial vehicle) is faster than the Pixel_horizontal_width / Drone_velocity, and the speed can be measured at least once per pixel.

In addition, the master LED bar generates a Sync pulse of Block_sync and Pixel_sync to synchronize a plurality of slave LED bars through each line.

Pixel_sync = Pixel_horizontal_width / Drone_velocity

At this time, the most recently updated Drone_velocity can be used.

Block_sync may be generated after Pixel_horizontal_number / LED_bar_number Pixel_sync is generated.

Meanwhile, the velocity measurement period of the unmanned aerial vehicle (drones) can generate Pixel_sync that adapts to the speed when the moving speed of the unmanned aerial vehicle (drone) is variable.

Pixel_sync = Pixel_horizontal_width / Drone_velocity

           = 1.6 cm / 8 m / s = 2 ms

If you measure the speed every 2ms, you can generate Pixel_sync every pixel.

FIG. 13 is a diagram illustrating a procedure of downloading format information according to an embodiment of the present invention, and FIG. 14 is a diagram illustrating a procedure of downloading format information according to an embodiment of the present invention.

Referring to FIG. 13, description of the downloading of the display information is performed. The display information is downloaded from the master LED bar, and then the display information is sequentially downloaded to the plurality of slave LED bars. Here, the server can directly transmit contents (display information) to be displayed using the high-speed data network to the master LED bar and a plurality of slave LEDs.

Referring to FIG. 14, content synchronization can be performed using a real-time sensor network. At this time, the master LED bar can synchronize a plurality of slave LED bars.

15 is a diagram illustrating an example of a display frame type according to an embodiment of the present invention.

As shown in FIG. 15 (a), the public LED display system can move the display frame by at least one unmanned aerial vehicle, and as shown in FIG. 15 (b) M number of LED bars can be moved by M unmanned aerial vehicles. 15 (c), the public LED display system can move 2 x M number of LED bars to 2 x M unmanned aerial vehicles, and Fig. 15 (d) The public LED display system can move the NxM LEDs by the NxM unmanned aerial vehicle.

16 is a diagram illustrating an example of a display according to an embodiment of the present invention.

Referring to FIG. 16, when an LED bar is transported in the air by a drone or the like to reach the predetermined altitude, the image is displayed by the afterimage effect of the eye while moving horizontally, The advertisement or the contents of the advertisement can be displayed in the public to be seen by all the crowd, and there is no restriction of the installation place, and it can be operated only when necessary.

The apparatus described above may be implemented as a hardware component, a software component, and / or a combination of hardware components and software components. For example, the apparatus and components described in the embodiments may be implemented within a computer system, such as, for example, a processor, controller, arithmetic logic unit (ALU), digital signal processor, microcomputer, field programmable array (FPA) A programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For ease of understanding, the processing apparatus may be described as being used singly, but those skilled in the art will recognize that the processing apparatus may have a plurality of processing elements and / As shown in FIG. For example, the processing apparatus may comprise a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as a parallel processor.

The software may include a computer program, code, instructions, or a combination of one or more of the foregoing, and may be configured to configure the processing device to operate as desired or to process it collectively or collectively Device can be commanded. The software and / or data may be in the form of any type of machine, component, physical device, virtual equipment, computer storage media, or device , Or may be permanently or temporarily embodied in a transmitted signal wave. The software may be distributed over a networked computer system and stored or executed in a distributed manner. The software and data may be stored on one or more computer readable recording media.

The method according to an embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

110, 210, 310, 510: display frame
111, 211, 520: a plurality of LED bars
120, 220, 320: Unmanned aerial vehicle
410: Master LED bar
420: Multiple slave LED bars
430: Server
440: Unmanned aerial vehicle remote controller
450: Display frame remote controller
521: LED array
522: Rechargeable battery
523:

Claims (10)

In an aerial LED display system,
A display frame in which a plurality of LED bars (Light Emitting Diode Bar) having a predetermined interval are disposed;
At least one unmanned aerial vehicle for transporting the display frame at a predetermined altitude; And
A server that directly transmits the displayed contents to the plurality of LEDs
Wherein the LED display system comprises: The method according to claim 1,
The unmanned aerial vehicle
One or a plurality of the display frames are transported at a certain altitude to move the display frame in a horizontal direction or in a circular shape having a predetermined radius
Wherein the LED illumination system comprises: The method according to claim 1,
The display frame
Being displayed horizontally with the ground surface by the unmanned aerial vehicle and displayed in a downward direction or being arranged vertically with the ground surface by the unmanned aerial vehicle and being displayed in both forward and backward directions
Wherein the LED illumination system comprises: The method according to claim 1,
A display frame remote controller for controlling brightness and information change of the display frame; And
An unmanned aerial vehicle remote controller for controlling the operation of the unmanned aerial vehicle
Further comprising: The method according to claim 1,
The plurality of LED bars
One master LED bar and a plurality of slave LEDs,
The master LED bar controls at least one of the plurality of slave LED bars by performing at least one of connection with the server, connection with the LED remote controller, and speed calculation
Wherein the LED illumination system comprises: 6. The method of claim 5,
The master LED bar and the plurality of slave LED bars
Wherein at least one of a high-speed data network for content transmission, a real-time sensor network for content synchronization, and a power supply line is connected
Wherein the LED illumination system comprises: In an aerial LED display method,
The method comprising: transporting a display frame having a plurality of LED bars having a predetermined interval at a predetermined height using at least one unmanned aerial vehicle;
Transmitting content displayed from the server directly to the plurality of LEDs; And
Moving the display frame in a horizontal direction or in a circular shape having a predetermined radius using the unmanned aerial vehicle
Gt; LED < / RTI > 8. The method of claim 7,
The display frame
Being displayed horizontally with the ground surface by the unmanned aerial vehicle and displayed in a downward direction or being arranged vertically with the ground surface by the unmanned aerial vehicle and being displayed in both forward and backward directions
Wherein the light emitting diode is a light emitting diode. 8. The method of claim 7,
Controlling a brightness and an information change of the display frame using a display frame remote controller
Further comprising:
The step of moving the display frame in a horizontal direction or in a circular shape having a predetermined radius using the unmanned aerial vehicle
Controlling the operation of the unmanned aerial vehicle using a remote controller of the unmanned aerial vehicle
Wherein the light emitting diode is a light emitting diode. 8. The method of claim 7,
The plurality of LED bars
One master LED bar and a plurality of slave LEDs,
Wherein the master LED bar controls at least one of the plurality of slave LED bars by performing at least one of connection to a server, connection with an LED remote controller, and speed calculation, and the master LED bar and the plurality of slave LED bars are connected to a high- At least one of a data network, a real-time sensor network for content synchronization, and a power line is connected
Wherein the light emitting diode is a light emitting diode.

Images