KR101922850B1 - Method for controlling LED(light emitting diode) display and computer readable record media for performing the method and LED display controller - Google Patents

Abstract

The present invention relates to a method of controlling an LED electric sign board, a computer readable recording medium for performing such a method, and an LED electric sign board controller. In the control method of the LED electric billboard, the LED billboard monitoring apparatus monitors the LED billboard to generate output image information, and the LED billboard monitoring apparatus compares the original image information of the output image information and the output image information to determine whether there is a bad LED lamp The output image information may include output image information obtained by sensing an output image of the LED electronic board, and the original image information may include original image information on the output image information.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of controlling an LED electric billboard, a computer readable recording medium for performing the method, and a LED electric billboard controller,

The present invention relates to a method of controlling an LED electric sign board, a computer readable recording medium for performing such a method, and an LED electric sign board controller. More particularly, the present invention relates to an LED electric billboard control method for more conveniently managing and controlling an installed LED electric billboard, a computer readable recording medium for performing such a method, and an LED electric billboard controller.

In an information society, various types of information are transmitted through a display device in a multimedia environment in which a large amount of information and various information are integrated.

LED (Light Emitting Diode) is an abbreviation of light emitting diodes and is a semiconductor device that converts electrical energy into light energy. The LED has a life span of 50,000 hours and can be used efficiently for a long time compared to conventional lamps. It does not use harmful gas such as mercury and discharge gas and has no harmful wavelength. That is, an LED is an optical device capable of providing environment-friendly / high-efficiency characteristics.

In addition, LEDs have long been used as display components for general household appliances and industrial machines. Recent advances in semiconductor technology have led to the development of high-efficiency, high-performance LED manufacturing technology, which has further expanded the application range of LEDs and is developing various applications. Applications using these LEDs are expected to completely replace existing light sources, and the rapid growth of related markets is supporting this prediction.

The LED display system, which is one of the major LED applications, uses an LED element as a light source instead of a conventional bulb or a neon, so it is safe and light because it is low in heat, and its durability is gradually expanding. Especially, LED display system which is a typical LED-based display system is a system that displays characters using an LED matrix. This system can display various character strings and graphics, so it can be used as an information delivery medium such as advertisement, publicity, It is suitable for use.

Such LED electric signboards are difficult to control because they are installed in places that can not be easily controlled, and it is difficult to judge whether or not the LED electric signboards normally operate after installing the electric signboards.

It is an object of the present invention to solve all the problems described above.

It is another object of the present invention to manage the LED electric signboard by analyzing the failure occurring in the LED electric signboard based on the monitoring of the LED electric signboard.

Another object of the present invention is to more effectively transmit information output by the LED electric sign board.

In order to accomplish the above object, a representative structure of the present invention is as follows.

According to an aspect of the present invention, there is provided a method of controlling an LED (light emitting diode) electric sign board, the method comprising the steps of: monitoring the LED electric signboard to generate output image information; And determining whether there is a defective LED lamp, wherein the output image information includes output image information obtained by sensing an output image of the LED electronic signboard, May include original image information for the output image information.

According to another aspect of the present invention, an LED electric billboard control system for controlling an LED (light emitting diode) electric billboard includes an LED electric billboard monitoring device, wherein the LED billboard monitoring device monitors the LED billboard to generate output image information, Wherein the output image information includes output image information obtained by sensing an output image of the LED display panel, and wherein the output image information includes at least one of image information, The original image information may include original image information on the output image information.

According to the present invention, it is possible to analyze defects occurring in the LED display board based on monitoring of the LED display board. Further, it is possible to more effectively transmit the information output by the LED electric sign board.

1 is a conceptual diagram illustrating a control system for an LED electric signboard according to an embodiment of the present invention.
2 is a conceptual diagram illustrating a method of controlling an LED electric signboard according to an embodiment of the present invention.
FIG. 3 is a conceptual diagram illustrating a method for determining whether or not the LED display control apparatus according to an exemplary embodiment of the present invention transmits a repair request message.
4 is a conceptual diagram illustrating a method of adjusting the brightness of the LED electronic signboard according to the embodiment of the present invention.
5 is a conceptual diagram illustrating a method of adjusting light output by an LED electronic signboard according to an embodiment of the present invention.
6 is a conceptual diagram illustrating a method of outputting an image on an LED electric signboard according to an embodiment of the present invention.
7 is a conceptual diagram illustrating a method of controlling a module of an LED electronic signboard according to an embodiment of the present invention.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, the specific shapes, structures, and characteristics described herein may be implemented by changing from one embodiment to another without departing from the spirit and scope of the invention. It should also be understood that the location or arrangement of individual components within each embodiment may be varied without departing from the spirit and scope of the present invention. Therefore, the following detailed description is not to be taken in a limiting sense, and the scope of the present invention should be construed as encompassing the scope of the appended claims and all equivalents thereof. In the drawings, like reference numbers designate the same or similar components throughout the several views.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

Hereinafter, an LED (light emitting diode) electric signboard is illustrated in the embodiment of the present invention, but an electric signboard including various LEDs other than the LED signboard is also included in the scope of the present invention. Hereinafter, in the embodiment of the present invention, the LED display panel may be interpreted as an electric display panel, and the LED device may be interpreted as a light emitting device.

1 is a conceptual diagram illustrating a control system for an LED electric signboard according to an embodiment of the present invention.

Referring to FIG. 1, the LED electric billboard control system may include an LED electric billboard 100, a LED billboard monitoring apparatus 120, and a LED billboard controller (or LED billboard controller) 140.

The LED electric sign board 100 may be implemented to output image information.

For example, the LED display panel 100 may include an LED display, a communication unit, a memory, and a control unit.

The LED display may be implemented with a plurality of LED lamps (or LED elements). A plurality of LED lamps may perform an ON / OFF operation by a control unit, and each of the plurality of LED lamps may emit light of a specific wavelength in an ON state. A specific screen can be output by a combination of a plurality of LED lamps. Each of the LED lamps (LED elements) can be represented by the term pixel, and a plurality of pixels can constitute one module. For example, the module may be implemented as a 16x16 LED lamp. The LED display panel may include a plurality of modules.

The communication unit may be implemented for communication with the LED display control unit 140. For example, the communication unit may receive a control signal for controlling the LED electric sign board 100 from the LED electric sign board control apparatus 100.

The memory may be implemented to store image information and / or control information to be outputted through the LED display board 100. [

The control unit may be implemented to control operation of the LED display, communication unit, and memory.

The LED electric billboard monitoring apparatus 120 may be implemented to monitor the state of the LED electric billboard 100. The LED display panel 100 can be installed in an outdoor environment and provides information to a user over a long distance. Therefore, it is difficult to know the minute fault information generated in the LED electric sign board 100. The LED electric sign board monitoring apparatus 120 may be a device for monitoring the state of the LED electric sign board 100. For example, the LED billboard monitoring apparatus 120 may be configured to capture image information output from the LED billboard 100 and analyze whether a bad LED lamp is generated in the LED billboard 100 based on the captured image information Device.

In the case of the LED display panel 100 having no analysis function for the defective LED lamp, the analysis of the defective LED lamp of the LED display panel 100 may be performed in the LED display panel 100 itself, An analysis on the defective LED lamp can be performed.

The LED electric sign board monitoring device 120 may be included in the LED electric signboard control device 140 and implemented.

The LED electric billboard control device 140 may be implemented to control the LED electric billboard 100.

For example, the LED electric billboard control device 140 may include a communication unit, a control unit, and a display.

The communication unit may be implemented to communicate with the LED display board 100 or the LED display board monitoring apparatus 120.

The control unit may be implemented to control the communication unit and the display.

The display may be implemented to output information related to control of the LED board such as control results for the LED board 100 and status information of the LED board 100. [

Hereinafter, a specific method of controlling a LED electric signboard of an LED electric signboard control system is described in the embodiment of the present invention.

2 is a conceptual diagram illustrating a method of controlling an LED electric signboard according to an embodiment of the present invention.

FIG. 2 shows a method of controlling the LED electric signboard based on the result of imaging the LED electric signboard at a remote location by the LED electric signboard monitoring device.

Referring to FIG. 2, the LED display panel monitoring apparatus compares the original image information of the output image information and the output image information output from the LED display panel to perform a failure analysis on the LED lamp (LED element) included in the LED display board have.

The monitoring device for the LED electric signboard monitoring the LED electric signboard is a device that monitors the time of the LED signboard after the emission of the LED signboard, in a time period in which the defectiveness of the LED lamp included in the LED signboard can be most clearly judged (for example, The output image information can be generated by capturing an image output from the LED display board.

The LED electric billboard monitoring apparatus can receive original image information corresponding to the output image information from the LED electric billboard control apparatus. The original image information may be information on the original image corresponding to the output image information. The LED board monitoring device can compare the original image information and the output image information. Based on the comparison result, it can be judged whether or not an abnormality occurred in the LED electric signboard (or whether the LED lamp is defective).

In addition, the LED electric billboard monitoring apparatus can receive configuration information for a plurality of LED lamps constituting the LED electric billboard. The LED display panel monitoring apparatus can match a plurality of LED lamps and a lower image output unit of output image information. The plurality of LED lamps and the lower image output unit of the output image information may be matched based on the position information of the plurality of LED lamps and the position information of the lower image output unit of the output image information. For example, each LED lamp of the LED display board implemented with 10000x10000 LED lamps can be matched with each of 10000x10000 lower image output units included in the image of the output image information.

Specifically, the LED display panel monitoring apparatus can determine whether there is a black lower image output unit in the output image information (step S200).

The output unit of the black image in the output image information may be an LED lamp that is OFF in the black state in the original image information, or an LED lamp that maintains the OFF state even though the ON state should be maintained due to the failure.

The LED display panel monitoring device determines whether the LED lamp is defective based on the original image information (step S210).

If the black lower image output unit in the output image information is not black in the original image information, the LED lamp corresponding to the black lower image output unit may be determined as the defective LED lamp 250.

On the other hand, if the output unit of the black image in the output image information is an LED lamp that is OFF in the black state in the actual image information, the corresponding LED lamp may include a corresponding LED lamp A failure analysis can be performed. An LED lamp which can not be judged as bad based on the present output image information can be expressed by the term " unconditionable LED lamp ".

Unable to judge if there is an LED lamp that can not be judged. Can not judge based on other original image information (another original image image) in which the lower image output unit corresponding to the LED lamp is kept in the ON state. Judgment can be performed. For example, when the image output from the LED display board is changed and the non-judgeable LED lamp is turned ON in the screen A, when the LED display board displays a screen A, the LED display board monitor captures the output screen, And it is possible to determine whether the LED lamp is defective by comparing it with the original image information in the above-described manner.

The LED display panel monitoring device can transmit the result of the failure judgment to the LED lamp control panel to the LED display panel control device (step S220).

If the LED lamp corresponding to the black lower image output unit is judged to be defective, the LED display device monitors the identification information of the LED lamp (for example, coordinate information, identification information on the module including the LED lamp) To the LED electric billboard control device.

The LED electric billboard controller may determine whether to send a repair request message to the LED display board to the manager device, and may transmit a repair request message (step S230).

The determination as to whether or not the LED display board control apparatus transmits a repair request message to the LED display board to the manager apparatus can be performed according to the set criteria.

FIG. 3 is a conceptual diagram illustrating a method for determining whether or not the LED display control apparatus according to an exemplary embodiment of the present invention transmits a repair request message.

FIG. 3 illustrates a method for determining whether or not the LED display board controller transmits a repair request message to the manager apparatus when it is determined that the LED lamp of the LED display board is defective.

For example, the LED display panel control device distinguishes the main output area 300 and the additional output area 350 from the LED display panel. When a faulty LED lamp of a threshold number or more occurs in the main output area 300, To the manager device.

Specifically, the LED display board control apparatus can separate the object and the background from the image information output on the LED display board. In addition, the LED electric billboard control apparatus sets a set of the lower image output units for outputting the object less than the threshold number of times to the additional output region 350, and sets a set of the lower image output units for outputting the objects exceeding the threshold number, Area 300 as shown in FIG.

Or important information of the text information and the image information can be selected from the image output from the LED board by the manager device and the area where the important information selected by the manager device is output can be set as the main output area 300. [

When the LED display panel control device generates a faulty LED with a threshold number or more in the area for outputting the object among the information output from the electric signboard, it sends a repair request message to the manager device, thereby managing the LED electric signboard Can be requested. That is, when a defective LED having a threshold number of times or more is generated for a part transmitting the main information in the image, it is determined that the LED electric signboard needs to be repaired and the management of the LED electric signboard can be requested.

A threshold number for distinguishing the additional output area 350 and the main output area 300, and a critical number of defective LED lamps for transmitting a repair request message can be set by the manager device.

4 is a conceptual diagram illustrating a method of adjusting the brightness of the LED electronic signboard according to the embodiment of the present invention.

4 illustrates a method for reducing the power consumption by adjusting the brightness of the LED display panel in consideration of the surrounding environment in which the LED display panel is installed, and improving the information transmission effect of the LED display panel.

Referring to FIG. 4, the position where the LED electric sign board is installed and the installed direction may be different.

For example, when the LED electric signboard is installed in a dark place (mountain, building high-rise, etc.), information can be easily transmitted through the LED electric signboard even if the brightness of the LED signboard is set relatively low. Conversely, when the LED signboard is installed in a bright city center (under a bus stop or a streetlight), the LED signboard can be set to sense the surrounding environment and output the optimum brightness.

Accordingly, the illuminance sensor 400 for sensing the ambient brightness can be installed on the LED display panel, and the brightness information of the surrounding environment generated by the illuminance sensor 400 can be transmitted to the LED display control device.

The controller of the LED electric billboard can adaptively adjust the luminance of the LED electric billboard in consideration of the brightness information.

Also. When there are a plurality of LED electric billboards managed by the LED billboard controller, the plurality of LED electric billboards may be divided into a plurality of management groups according to the received brightness information, and a multicast signal may be transmitted for each management group to adjust the brightness of the LED billboards.

For example, a plurality of ranges are set based on the surrounding brightness information according to time, and each of the plurality of LED electric signboards included in each of the plurality of ranges is grouped, and the brightness adjustment for the LED signboards is performed in units of grouped LED electric signboard groups .

5 is a conceptual diagram illustrating a method of adjusting light output by an LED electronic signboard according to an embodiment of the present invention.

5, a method for adaptively adjusting the color of the LED display panel in consideration of the color information around the LED display panel is disclosed.

Referring to FIG. 5, the LED display panel monitoring device acquires color information around the LED display panel 500, and the LED display panel control device adaptively adjusts the color information output from the LED display panel 500.

Specifically, the LED electronic billboard monitoring apparatus searches the surrounding color of the LED electronic signboard 500 and determines the most effective LED color based on the surrounding color. The color of the light emitted from the LED display panel 500 (for example, the surrounding LED display panel 550 when surrounded by another LED display panel) is determined through the LED display panel monitoring unit to determine the color of the LED display panel .

For example, when the periphery of the LED display board 500 is red, the color of the LED display board 500 is adaptively adjusted with a color (for example, green, white, etc.) Can be changed. In order to adaptively change the color of the LED electronic sign 500, the object and the background are separated, the color of the background part is set in consideration of the surrounding color information, and the color of the object part can be adjusted in consideration of the color set in the background part have.

6 is a conceptual diagram illustrating a method of outputting an image on an LED electric signboard according to an embodiment of the present invention.

6, an image processing method considering the size of the LED electric sign board is disclosed.

Referring to FIG. 6, when the same image is output from LED display boards having different sizes, a re-operation for the image can be adaptively performed according to the size of the LED display board.

For example, when a poster for promoting a movie is output from a plurality of LED display boards of different sizes installed at different places, a movie promoting poster may be resized and reproduced by the size of the LED display board have.

Separation of the object on the output image may be performed for output of the re-processed image.

Specifically, the text object 650, the non-text object 600 and the background 620 may be separated on the image.

The text object 650 may include object information which is text included in the output image.

The non-text object 600 may include object information that is not text included in the output image.

The background 620 may be an area other than the text object 650 and the non-text object 600 on the image.

The text object 650, the non-text object 600, and the background 620 may be superimposed in order for reprocessing the image. It is possible to place the background 620 in the lowest layer first and place the non-text object 600 in the upper layer of the background 620 and place the text object 620 in the upper layer of the non- have. An object of a higher layer can be positioned while hiding an object of a lower layer.

At this time, the text object 650 and the non-text object 600 may be adaptively resized according to the size of the LED electronic signboard.

For example, if the size of the original image is the size to be output from the LED display board having a size of 20000x10000, and the size of the installed LED display board is 10000x10000, the vertical size of the test object and the non- It can be outputted without any sense of difference even on the LED display board.

In the case of the background area 620, the area of the space can be filled with the same color as the surrounding background color to fill the area of the space resulting from the size adjustment of the text object 650 and the non-text object 600.

7 is a conceptual diagram illustrating a method of controlling a module of an LED electronic signboard according to an embodiment of the present invention.

In Fig. 7, the operation of each of the plurality of modules constituting the LED electric sign board is started.

Referring to FIG. 7, the LED electronic signboard according to the embodiment of the present invention can be implemented on the basis of a plurality of modules 700, and the plurality of modules 700 can be implemented to be movable in an LED electronic signboard. As described above, each of the plurality of modules 700 may include a plurality of LED lamps.

The user can move the module 700 in the LED display panel to various positions in consideration of the output image information to be output through the LED display board.

Specifically, the LED display panel may be provided with an internal clearance space 720 for moving the module 700 in the LED display panel, and the internal space 720 may be utilized to allow the module 700 to be disposed at various positions in the LED display panel Can be moved.

The power supply unit for supplying electric power to the module 700 for moving the module 700 in the LED electric signboard can be implemented in a detachable form with respect to the module and the power supply unit can be coupled again after moving the module 700, (700). In addition, a module moving unit for moving the module 700 in the LED display board can be separately implemented.

Based on the movement of the module 700 in the LED display panel, LED display boards of various shapes and sizes can be realized, and images of various sizes can be output from the LED display boards according to the purpose. For example, when an image having a ratio of 1: 2 in the horizontal and vertical directions is to be output, the module 700 may be moved so that the LED display panel is implemented so that the ratio of 1: 2 in the horizontal and vertical directions. Or the image having the aspect ratio of 2: 1 is to be output, the module 700 may be moved so as to implement the LED display panel so that the ratio of the width to the length is 2: 1.

In addition, when the LED lamp fails, the module 700 can be moved. For example, a module including a lamp in which a failure has occurred (hereinafter, a failure module) may be included in a main output area located at the center of the LED display board. In this case, the positions of the modules located in the additional output area and the defective module included in the main output area can be exchanged.

That is, the LED electric sign board control device moves the normal module which does not include the defective lamp located in the additional output area to the position of the defective module which is located in the main output area and conversely the defective module which includes the defective lamp located in the main output area, It can be moved to the position of the normal module located in the output area. When this method is used, the information transmitted from the electric bulletin board can be more clearly transmitted by replacing the bad module generated in the main output area where the main object is outputted in the image with the normal module temporarily.

The embodiments of the present invention described above can be implemented in the form of program instructions that can be executed through various computer components and recorded in a computer-readable recording medium. The computer-readable recording medium may include program commands, data files, data structures, and the like, alone or in combination. The program instructions recorded on the computer-readable recording medium may be those specifically designed and configured for the present invention or may be those known and used by those skilled in the computer software arts. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape, optical recording media such as CD-ROM and DVD, magneto-optical media such as floptical disks, medium, 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 generated 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 device may be modified into one or more software modules for performing the processing according to the present invention, 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 embodiments, but, on the contrary, Those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the scope of the present invention.

Accordingly, the spirit of the present invention should not be construed as being limited to the above-described embodiments, and all ranges that are equivalent to or equivalent to the claims of the present invention as well as the claims .

Claims (11)

A method of controlling a light emitting diode (LED)
Monitoring the LED display panel to generate output image information;
Comparing the output image information with the original image information of the output image information to determine whether there is a defective LED lamp;
Transmitting the information on the defective LED lamp to the LED display device when the defective LED lamp is present; And
Determining whether the LED display controller transmits a repair request message to the defective LED lamp to the manager device,
Wherein the output image information includes output image information obtained by imaging an output image of the LED electronic circuit board,
Wherein the original image information includes original image information for the output image information,
Wherein the information on the defective LED lamp includes information on the position of the defective LED lamp,
Wherein the step of determining whether to transmit the repair request message to the manager device comprises:
Dividing the LED electronic signboard into a main output area and a supplemental output area; And
And transmitting the repair request message to the manager device when the LED display controller includes a critical number of the faulty LED lamp in the main output area,
Wherein the main output area is a set of lower image output units for outputting an object exceeding a threshold number of times,
Wherein the additional output area is a set of lower image output units for outputting the object less than or equal to the threshold number of times.
delete The method of claim 1, wherein the step of determining whether the defective LED lamp is present comprises:
The LED electric sign board monitoring apparatus searches for a black lower-level image output unit in the output image information;
Determining whether the LED lamp corresponding to the lower image output unit of the black color is the defective LED lamp or the non-judgeable LED lamp; And
If the LED lamp is the non-judgeable LED lamp, the LED display device monitors the other output image information and other original image information corresponding to the other output image information to judge whether the judgeable LED lamp is defective ≪ / RTI > 4. The method of claim 3, wherein the step of determining whether the lamp is a defective LED lamp or a non-
Determining that the LED lamp is a defective LED lamp when the LED lamp emits light based on the original image information; And
And determining that the LED lamp is a non-judgeable LED lamp when the LED lamp is to be turned off based on the original image information. delete 1. An LED electric billboard control system for controlling an LED (light emitting diode) electric billboard,
The LED electric billboard control system includes an LED electric billboard monitoring device,
The LED display panel monitoring apparatus monitors the LED display panel to generate output image information, and compares the output image information with the original image information to determine whether there is a defective LED lamp,
Wherein the output image information includes output image information obtained by imaging an output image of the LED electronic circuit board,
Wherein the original image information includes original image information for the output image information,
The LED electric billboard control system further includes an LED electric billboard control device,
Wherein the LED display panel monitoring device is configured to transmit information on the defective LED lamp to the LED display device when the defective LED lamp is present,
The LED display board controller is configured to determine whether to send a repair request message for the defective LED lamp to the manager device,
Wherein the information on the defective LED lamp includes information on the position of the defective LED lamp,
The LED electric billboard control device divides the LED electric billboard into a main output area and a supplementary output area,
When the failure LED lamp includes a critical number in the main output area, the repair request message is transmitted to the manager device,
Wherein the main output area is a set of lower image output units for outputting an object exceeding a threshold number of times,
And the additional output area is a set of lower image output units for outputting the object less than or equal to the threshold number of times.
delete The method according to claim 6,
The LED electric sign board monitoring apparatus searches a black lower image output unit from the output image information,
Determining whether the LED lamp corresponding to the black lower image output unit is the defective LED lamp or the uncontrollable LED lamp,
When the LED lamp is the non-judgment LED lamp, comparing the other output image information with other original image information corresponding to the other output image information, and judging whether the LED lamp is defective or not LED signboard control system. 9. The method of claim 8,
Wherein the LED display panel monitoring device determines the LED lamp as the defective LED lamp when the LED lamp should emit light based on the original image information,
Wherein the controller is configured to determine the LED lamp as the non-judgment LED lamp when the LED lamp should remain off based on the original image information. delete delete

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