KR102569261B1 - Method For Restore Controller Trouble Of LED Display Board System - Google Patents

Abstract

The present invention relates to a method for recovering a controller failure in an LED signboard system, and more particularly, having a plurality of controllers and capable of continuously outputting image information without replacing a physical controller when a failure occurs in a specific controller. It relates to a method for recovering a controller failure in an LED signboard system.

Description

How to recover controller failure in LED display board system {Method For Restore Controller Trouble Of LED Display Board System}

The present invention relates to a method for recovering a controller failure in an LED signboard system, and more particularly, having a plurality of controllers and capable of continuously outputting image information without replacing a physical controller when a failure occurs in a specific controller. It relates to a method for recovering a controller failure in an LED signboard system.

A general large LED display system is a kind of large display means that is installed in a place where there is a lot of traffic and people, such as roadsides or shopping malls, and provides various information such as traffic, weather, and publicity. Therefore, large-sized LED signage systems are installed and used in various places, and are particularly used as a means of providing traffic information.

Such a large-sized LED display board system connects a plurality of LED pixel panels in a plane to form an LED light emitting unit, and each LED pixel panel is a system in which light emission is controlled by a driving driver module, and provides higher brightness than other large display means. By doing so, it provides sufficient discernment even during the daytime, has significantly higher durability compared to other large display means, and is easy to maintain.

LED pixel defects that can occur in LED display boards can actually be used without replacement if 1 or 2 are partially defective, but LED controller defects require immediate replacement as the entire panel does not operate properly. Currently, the reliability and lifespan of LED products are increasing, and the controller defect rate is increasing more than the LED pixel defect. Unlike LED Pixel, controllers can be easily replaced with other products because products with the same specifications show almost the same level of performance. Existing displays have a problem in that a maintenance/repair period of the display may increase when the controller is out of order.

On the other hand, in the large LED display board system, a plurality of LED pixel panels are connected in a plane to form an LED light emitting unit, so that a part of the LED light emitting unit screen is not output at all or is output abnormally due to an error in the LED pixel panel or the driving driver module. there is a problem.

When a problem occurs in the screen of the LED light emitting part, the function of providing information, which is the purpose of the large-scale LED display system, is incomplete, resulting in a problem that the original function of the large-size LED display system cannot be performed. There is a problem of spoiling the aesthetics due to the incomplete screen output of the large LED signage system installed in the place where there is a lot of problems and traffic of vehicles and people.

In the prior art, there is a problem in that the large LED signboard system does not perform its original function while there is only an effect of checking the failure of the large LED signage system from a remote location, and maintenance for the failure is not performed. Even if it is recognized, there is a problem in that image information cannot be completely provided while maintenance is not performed as considerable time is required for maintenance.

Patent Document 1 below discloses an LED display board system having an emergency output unit and actively responding to an output screen automatic control function and the surrounding environment. It has the advantage of determining the output abnormality of the LED signboard from the externally visible part, but it is not possible to solve the problem of hardware such as pixels and controllers inside, and accordingly, the problem that the operator has to take action directly there is

Patent Publication 10-2020-0022597 (Active large-size LED display system that actively responds to output screen automatic control function and surrounding environment)

An object of the present invention is to restore a controller failure in an LED signboard system that has a plurality of controllers and enables continuous output of image information without replacing a physical controller when a failure occurs in a specific controller.

In order to solve the above problems, the present invention includes a plurality of controllers, a plurality of display panels, and a switching module for receiving input signals from the plurality of controllers and an output module for transmitting output signals to the plurality of display panels. A method for restoring a controller failure in an LED signboard system including a switch module comprising: a failure determination step of determining whether the plurality of controllers are defective in the switching module; an input selection step of selecting, in the switching module, one or more non-defective controllers from among the plurality of controllers determined in the defect determination step; an input switching step of switching an input to transmit, in the switching module, the divided image information received from the controller selected in the input selection step to the output module; an image information distribution step of transmitting, in the output module, the divided image information received in the input conversion step to the plurality of display panels; and an image information output step of outputting the divided image information received in the image information distribution step from the plurality of display panels to implement a matched image in the plurality of display panels. do.

In one embodiment of the present invention, in the defective determination step, a controller to which divided image information is not input may be determined to be defective among the plurality of controllers.

In one embodiment of the present invention, in the defective determination step, a controller to which split image information is not input according to a preset cycle may be determined to be defective among the plurality of controllers.

In one embodiment of the present invention, the plurality of controllers transmit split image information corresponding to a predetermined frame rate per second to the switching module, and the split image information includes a plurality of detailed image information corresponding to a plurality of display panels. And, in the defect determination step, a controller that transmits divided image information whose frame rate per second does not match the predetermined frame rate per second among the plurality of detailed image information may be determined to be defective.

In one embodiment of the present invention, the LED sign board system may further include a PC terminal connected to the plurality of controllers and capable of transmitting entire image information.

In one embodiment of the present invention, the plurality of display panels, a plurality of display panels may be connected in series or parallel.

In one embodiment of the present invention, a switch module including a plurality of controllers, a plurality of display panels, and a switching module for receiving input signals from the plurality of controllers and an output module for transmitting output signals to the plurality of display panels An LED sign board system comprising: a defect determination step of determining whether or not the plurality of controllers are defective in the switching module; an input selection step of selecting one or more non-defective controllers from among the plurality of controllers determined in the defect determination step; and an input switching step of switching an input to transmit the divided image information received from the controller selected in the input selection step to the output module, wherein the output module transmits the divided image information received in the input switching step to the output module. Distributing image information transmitted to a plurality of display panels; and an image information output step of outputting the divided image information received in the image information distribution step from the plurality of display panels to realize matched images in the plurality of display panels.

According to one embodiment of the present invention, it is possible to exert an effect of extending the life of the display panel by taking measures against the controller failure by itself.

According to an embodiment of the present invention, it is possible to achieve an effect of continuously outputting image information as a result of self-determination of a controller failure and taking measures.

According to one embodiment of the present invention, it is possible to exert an effect capable of preparing for frequently occurring controller failures by having a redundant controller.

According to one embodiment of the present invention, when the frame rate per second preset in the controller and the frame rate per second displayed on the plurality of display panels are different, it is possible to switch to an extra controller to solve the defect.

1 schematically illustrates the structure of an LED sign board system according to an embodiment of the present invention.
2 schematically shows a process of taking measures against defects in the LED signboard system according to an embodiment of the present invention.
3 schematically shows an LED signboard system including a switch module according to an embodiment of the present invention.
4 schematically illustrates divided image information and detailed image information according to an embodiment of the present invention.
5 schematically shows display panels having different frame rates per second in the LED signboard system according to an embodiment of the present invention.

In the following, various embodiments and/or aspects are disclosed with reference now to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth in order to facilitate a general understanding of one or more aspects. However, it will also be appreciated by those skilled in the art that such aspect(s) may be practiced without these specific details. The following description and accompanying drawings describe in detail certain illustrative aspects of one or more aspects. However, these aspects are exemplary and some of the various methods in principle of the various aspects may be used, and the described descriptions are intended to include all such aspects and their equivalents.

Moreover, various aspects and features will be presented by a system that may include a number of devices, components and/or modules, and the like. It should also be noted that various systems may include additional devices, components and/or modules, and/or may not include all of the devices, components, modules, etc. discussed in connection with the figures. It must be understood and recognized.

"Example", "example", "aspect", "exemplary", etc., used herein should not be construed as preferring or advantageous to any aspect or design being described over other aspects or designs. . The terms '~unit', 'component', 'module', 'system', 'interface', etc. used below generally mean a computer-related entity, and for example, hardware, hardware It may mean a combination of and software, software.

The '~ unit' or '~ module' used in this specification may be implemented through one or more physical members, one or more hardware, a combination of one or more hardware and software, or one or more software. In addition, when there are a plurality of '~units' or '~modules', a plurality of '~units' or '~modules' means a plurality of one or more physical members, one or more hardware, a combination of one or more hardware and software, or It may be implemented by one or more software, but is not limited thereto, and in implementing a plurality of '~units' or '~modules', one or more hardware that is applied redundantly, a combination of one or more hardware and software, or one or more There may be software. For example, if there are first hardware, second hardware, and first software, and there are parts A, part B, part C, and part D, part A is implemented by a combination of the first hardware and first software, and part B is implemented by a combination of the first hardware and the first software. It may be implemented by a combination of first hardware and second software, part C may be implemented by second hardware, and part D may be implemented by first software.

Also, the terms "comprises" and/or "comprising" mean that the feature and/or element is present, but excludes the presence or addition of one or more other features, elements and/or groups thereof. It should be understood that it does not.

In addition, terms including ordinal numbers, such as first and second, may be used to describe various components, but the components are not limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.

In addition, terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "include" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

In addition, in the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, are generally understood by those of ordinary skill in the art to which the present invention belongs. has the same meaning as Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the embodiments of the present invention, an ideal or excessively formal meaning not be interpreted as

1 schematically illustrates the structure of an LED sign board system according to an embodiment of the present invention.

The LED signboard system according to an embodiment of the present invention includes a plurality of controllers 100, a plurality of display panels 200, a switching module 310 receiving input signals from the plurality of controllers 100, and the plurality of It may include a switch module 300 including an output module 320 for transmitting an output signal to the display panel 200 of the.

The PC terminal 400 corresponds to a terminal capable of being connected to the plurality of controllers 100 and storing, transmitting, and reproducing entire image information. Preferably, the PC terminal 400 can be applied in the form of all media capable of storing image information, including wired connection, network connection, and portable storage.

In the switching module 310, a defect determination step (S10) of determining whether or not the plurality of controllers 100 are defective; an input selection step (S20) of selecting one or more non-defective controllers 100 from among the plurality of controllers 100 determined in the defect determination step (S10); and an input switching step (S30) of switching an input to transmit the divided image information received from the controller 100 selected in the input selection step (S20) to the output module 320.

The output module 320 may perform an image information distribution step (S40) of transmitting the divided image information received in the input switching step (S30) to the plurality of display panels 200.

In the plurality of display panels 200, a video information output step (S50) of outputting the divided image information received in the image information distribution step (S40) to implement a matched image in the plurality of display panels (200); can be performed.

In addition, the switch module 300 includes an input terminal 330 corresponding to a connection member to which the plurality of controllers 100 and the switching module 310 are connected, and the plurality of display panels 200 and the output The module 320 may further include a plurality of output terminals 340 corresponding to connection members to which images are transmitted.

The plurality of display panels 200 may be arranged in a matrix form having a structure of a plurality of rows and a plurality of columns.

In the LED signboard system, when maintenance is required, a worker can separate the connection lines of the plurality of controllers 100 from the input terminal 330 to replace the plurality of controllers 100, and the plurality of display panels The plurality of display panels 200 can be replaced by separating the connection line of 200 from the output terminal 340 .

The LED signboard system according to an embodiment of the present invention may further include a PC terminal 400 capable of transmitting entire image information by being connected to the plurality of controllers 100 .

The controller 100 receives the entire image information transmitted from the PC terminal 400 and divides the plurality of display panels 200 into detailed image information capable of outputting suitable images, respectively, to obtain divided image information. can play a role in creating Thereafter, the split image information may be transmitted to the switching module 310 through the input terminal 330 . That is, the controller 100 may divide and process image information into the divided image information so that the entire image information can be displayed on the plurality of display panels 200 .

Thereafter, the split image information may be input to the output module 320, the plurality of output terminals 340, and the plurality of display panels 200 in the order of the switching module 310. The divided image information may output detailed image information from the plurality of display panels 200 . Accordingly, the plurality of display panels 200 can output matched image information so that a user can view one image.

In a conventional LED display panel system, the plurality of display panels 200 are connected in series to the output terminal 340, and one output terminal 340 transmits an image and transmits divided image information.

On the other hand, in the LED signboard system according to an embodiment of the present invention, the plurality of display panels 200 are connected in parallel at the plurality of output terminals 340, and split image information is transmitted at the plurality of output terminals 340. It can be distributed and transmitted to the plurality of output terminals 340 .

2 schematically shows a process of taking measures against defects in the LED signboard system according to an embodiment of the present invention.

As a method for recovering a failure of the controller 100 in an LED sign board system according to an embodiment of the present invention, in the switching module 310, determining whether the plurality of controllers 100 are defective (S10) ); In the switching module 310, an input selection step (S20) of selecting at least one controller 100 that is not defective from among the plurality of controllers 100 determined in the failure determination step (S10); an input conversion step (S30) of switching an input in the switching module 310 to transmit the divided image information received from the controller 100 selected in the input selection step (S20) to the output module 320; an image information distribution step (S40) of transmitting the divided image information received in the input switching step (S30) to the plurality of display panels (200) in the output module (320); and an image information output step (S50) of outputting the divided image information received in the image information distribution step (S40) from the plurality of display panels (200) to realize a matched image in the plurality of display panels (200). ; can be included.

The switching module 310 determines problems occurring in the plurality of controllers 100 by itself and determines whether the plurality of controllers 100 are defective in the defect determination step (S10). can

In the defect determination step S10 according to an embodiment of the present invention, the controller 100 to which split image information is not input among the plurality of controllers 100 may be determined to be defective. Also, among the plurality of controllers 100, the controller 100 to which split image information is not input according to a predetermined cycle may be determined to be defective.

The predetermined period may be set in units of hours, minutes, or seconds, and the split image information provided by the controller 100 by checking input of image information according to the predetermined period in the switching module 310. It is determined whether or not is input, and if image information is not input, it is determined that the controller 100 is defective, and the switching module 310 can switch the connection to another redundant controller 100.

The plurality of controllers 100 according to an embodiment of the present invention transmits split image information corresponding to a predetermined frame rate per second to the switching module 310, and the split image information is transmitted to the plurality of display panels 200. It includes a plurality of detailed image information corresponding to, and in the defect determination step (S10), the controller for transmitting split image information whose frame rate per second does not match the preset frame rate per second among the plurality of detailed image information ( 100) can be judged as defective.

The predetermined frame rate per second may be 60 frames per second (fps) corresponding to a generally used frame rate. That is, in the case of 60 fps, it corresponds to a frame rate of displaying 60 frames per second. Preferably, the plurality of display panels 200 can output at the same frame rate per second at a specific value including 29.97 fps and 24 fps depending on the refresh rate of the monitor and the type of image.

That is, as the controller 100 itself takes measures against defects, the life span of the display panel 200 can be extended.

3 schematically shows an LED signboard including a switch module 300 according to an embodiment of the present invention.

As shown in (A) of FIG. 3, in the conventional LED sign board system, one controller 100 is mounted, and the plurality of display panels 200 can be connected in parallel, and divided image information can be processed and sent. Preferably, the plurality of display panels 200 according to an embodiment of the present invention, the plurality of display panels 200 may be connected in series or parallel.

As described above, in the conventional LED signboard system, the plurality of display panels 200 are serially connected to the output terminal 340, and one output terminal 340 transmits an image to divide image information. can deliver. On the other hand, in the LED signboard system according to an embodiment of the present invention, the plurality of display panels 200 are connected in parallel at the plurality of output terminals 340, and split image information is transmitted at the plurality of output terminals 340. It can be distributed and transmitted to the plurality of output terminals 340 .

As described above, the plurality of display panels 200 connected in series have complicated wiring because the direction of the wiring is changed for each column based on the output terminal 340 to which the divided image information is input. On the other hand, the plurality of display panels 200 connected in parallel are connected in the same direction with respect to the output terminal 340, and may have a simple wiring structure.

The split image information is input to the output terminal 340, and each display panel 200 takes and transmits detailed image information corresponding to each position. In addition, wiring from the output terminal 340 to the display panel 200 located at the most end may be shorter when connected in parallel than when connected in series. That is, the plurality of display panels 200 according to an embodiment of the present invention are connected in parallel so that split image information can be synced more appropriately than serially.

As shown in (B) of FIG. 3, the LED signboard system according to an embodiment of the present invention includes the switch module 300 between the plurality of controllers 100 and the plurality of display panels 200. can be applied. Accordingly, failure of the plurality of controllers 100 can be prepared.

In other words, as the controller 100 is redundant, it is possible to prepare for failures of the controller 100 that frequently occur.

4 schematically illustrates divided image information and detailed image information according to an embodiment of the present invention.

As shown in FIG. 4 , the image information that can be displayed on the plurality of display panels 200 corresponds to divided image information, and the image information that can be displayed on the plurality of display panels 200 corresponds to detailed image information. applicable That is, the plurality of detailed image information divided by the plurality of controllers 100 are aligned into one divided image information, and the plurality of display panels 200 pass through the switching module 310 and the output module 320. Matched image information can be output according to being displayed on .

Accordingly, the plurality of display panels 200 can view matched image information such as entire image information from the viewer's point of view on the plurality of display panels.

5 schematically shows display panels 200 having different frame rates per second in the LED signboard system according to an embodiment of the present invention.

As described above, the plurality of controllers 100 according to an embodiment of the present invention transmits split image information corresponding to a predetermined frame rate per second to the switching module 310, and the split image information is Split image information including a plurality of detailed image information corresponding to the display panel 200, and in the defect determination step (S10), the frame rate per second among the plurality of detailed image information does not match the preset frame rate per second It is possible to determine that the controller 100 that transmits is defective.

Illustratively, as shown in FIG. 5, the plurality of display panels 200 output split image information at 60 fps corresponding to a frame rate per second preset in the plurality of controllers 100, and 5 times, 10 As display panels No. 1 and No. 15 output detailed image information at 30 fps, it may be determined that the frame rate per second of some of the detailed image information among the divided image information does not match the preset frame rate per second. Accordingly, if the controller currently processing split image information is controller 1, the switching module 310 determines that controller 1 is defective in the defect determination step, and connects to controller 2 to receive split image information. By switching, it is possible to solve the frame rate problem per second occurring in the plurality of display panels 200 .

That is, when the frame rate per second preset in the controller is different from the frame rate per second displayed on the plurality of display panels, it is possible to switch to an extra controller to solve the defect.

According to one embodiment of the present invention, it is possible to exert an effect of extending the life of the display panel by taking measures against the controller failure by itself.

According to an embodiment of the present invention, it is possible to achieve an effect of continuously outputting image information as a result of self-determination of a controller failure and taking measures.

According to one embodiment of the present invention, it is possible to exert an effect capable of preparing for frequently occurring controller failures by having a redundant controller.

According to one embodiment of the present invention, when the frame rate per second preset in the controller and the frame rate per second displayed on the plurality of display panels are different, it is possible to switch to an extra controller to solve the defect.

As described above, although the embodiments have been described with limited examples and drawings, those skilled in the art can make various modifications and variations from the above description. For example, the described techniques may be performed in an order different from the method described, and/or components of the described system, structure, device, circuit, etc. may be combined or combined in a different form than the method described, or other components may be used. Or even if it is replaced or substituted by equivalents, appropriate results can be achieved.

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

Claims (7)

Controller failure in the LED signboard system including a plurality of controllers, a plurality of display panels, and a switch module including a switching module receiving input signals from the plurality of controllers and an output module including an output module transmitting output signals to the plurality of display panels. As a method of recovering,
a defect determination step of determining whether or not the plurality of controllers are defective in the switching module;
an input selection step of selecting one or more non-defective controllers from the plurality of controllers determined in the defect determination step in the switching module;
an input conversion step of switching an input to transmit, in the switching module, the divided image information received from the controller selected in the input selection step to the output module;
an image information distribution step of transmitting, in the output module, the divided image information received in the input switching step to the plurality of display panels; and
In the plurality of display panels, an image information output step of outputting the divided image information received in the image information distribution step to implement a matched image in the plurality of display panels; includes,
The plurality of controllers transmit split image information corresponding to a predetermined frame rate per second to the switching module,
The split image information includes a plurality of detailed image information corresponding to a plurality of display panels,
In the defect determination step, a controller that transmits divided image information whose frame rate per second does not match the predetermined frame rate per second among the plurality of detailed image information is judged to be defective;
The plurality of display panels,
A plurality of display panels are connected in parallel from the output terminal of the output module,
When the plurality of display panels are connected in parallel,
In preparation for the serial connection of the plurality of display panels, the length of the wiring to the display panel located at the most end is short, the sync of the divided image information in each of the plurality of display panels is matched and transmitted, and the output terminal of the output module A method for recovering from a controller failure that has a wiring structure in which the direction of wiring is connected in the same way as a reference.
The method of claim 1,
In the bad judgment step,
A method for recovering a controller failure by determining a controller to which split image information is not input among the plurality of controllers as defective.
The method of claim 1,
In the bad judgment step,
A method for restoring a controller failure by determining a controller to which split image information is not input according to a predetermined cycle among the plurality of controllers as defective.
delete The method of claim 1,
The LED display system,
A method for recovering a controller failure, further comprising a PC terminal connected to the plurality of controllers and capable of transmitting entire image information.
delete An LED signboard system including a plurality of controllers, a plurality of display panels, and a switch module including a switching module that receives input signals from the plurality of controllers and an output module that transmits output signals to the plurality of display panels,
In the switching module,
a defect determination step of determining whether the plurality of controllers are defective;
an input selection step of selecting one or more non-defective controllers from among the plurality of controllers determined in the defect determination step; and
An input switching step of switching an input to transmit split image information received from the controller selected in the input selection step to the output module;
In the output module,
an image information distribution step of transmitting the divided image information received in the input conversion step to the plurality of display panels; and
In the plurality of display panels, an image information output step of outputting the divided image information received in the image information distribution step to implement a matched image in the plurality of display panels;
The plurality of controllers transmit split image information corresponding to a predetermined frame rate per second to the switching module,
The split image information includes a plurality of detailed image information corresponding to a plurality of display panels,
In the defect determination step, a controller that transmits divided image information whose frame rate per second does not match the predetermined frame rate per second among the plurality of detailed image information is judged to be defective;
The plurality of display panels,
A plurality of display panels are connected in parallel from the output terminal of the output module,
When the plurality of display panels are connected in parallel,
In preparation for the serial connection of the plurality of display panels, the length of the wiring to the display panel located at the most end is short, the sinks in each of the plurality of display panels are matched and output, and the wiring is output based on the output terminal of the output module. An LED signboard system with a wiring structure in which the directions are connected in the same way.

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