KR102569633B1 - LED display board - Google Patents

Abstract

The present invention relates to an LED electronic display board having an automatic switching function when a failure occurs, and more specifically, to an LED electronic display board having an automatic switching function when a failure occurs, in which after a plurality of image signals and power signals supplied to an LED module are detected, when an output error occurs, preliminary image signals and preliminary power signals are output to the LED module, from which the output error has occurred, through a preliminary channel so that the LED module can normally display an image. To this end, provided is an LED display board having an automatic switching function when a failure occurs, the LED display board comprising: an image signal source operation unit for managing an image signal source for supplying an image signal to the LED display board; a sanding module unit for receiving the image signal source transmitted from the image signal source operation unit to convert the image signal source according to the resolution of the LED display board and transmit the converted image signal data; a main power supply unit for supplying main power necessary for the LED display board; a power distribution unit for distributing the power supplied from the main power supply unit; and a cabinet module unit for receiving the image signal transmitted from the sanding module unit and the power signal supplied from the power distribution unit to distribute and output the image signal and the power signal to each LED module, detecting an output error for at least one distribution signal of the image signal and the power signal distributed and output to each LED module, matching and generating a preliminary signal corresponding to the distribution signal from which the output error is detected to supply a normal matching preliminary signal to the LED module from which the output error is detected.

Description

LED display board with built-in automatic switching function in case of failure {LED display board}

The present invention relates to an LED display board with a built-in automatic switching function when a failure occurs, and more particularly, when an output failure error occurs after detecting a plurality of video signals and power signals supplied to an LED module, an output failure through a spare channel. It relates to an LED display board with an automatic switching function built-in in the event of a failure so that the LED module normally displays an image by switching and outputting a preliminary video signal and a preliminary power signal to the LED module in which the error occurred.

In order to normally drive the LED module of the LED display board, a video signal output from the receiving card to the LED module and a power signal output from the SMPS to the LED module are required. At this time, the receiving card divides and allocates the video signal to be transmitted to each LED module and transmits the divided and allocated video signal to the matched LED module, and the SMPS power signal is distributed and supplied to each LED module. When video signals are output from the receiving card to each LED module, a connection cable is usually used. As an example, in the case of contact failure or disconnection of the connection cable, the video signal is transmitted to the corresponding LED module as a failure of the video output channel of the receiving card. A problem occurs that cannot be supplied normally. Similarly, even in the case of SMPS power signals, there is a problem in that the corresponding LED module cannot display normal images if normal power supply is not made, such as poor cable contact or disconnection.

10-2266979

Therefore, the present invention was created to solve the above-described problems, detecting the current flow of the dividedly allocated video signal output from the revising card to each LED module, and the power signal output from the SMPS to each LED module. To provide an invention that enables normal image display in the LED module by supplying a preliminary video signal and a preliminary power signal to the LED module in which the output failure occurs through a spare channel when an output failure occurs by detecting the current flow of the LED module. There is a purpose.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the description below.

An object of the present invention described above is to receive a video signal source transmitted from a video signal source operation unit that manages a video signal source for supplying video signals to an LED display board and a video signal source operation unit, and convert the signal to match the resolution of the LED display board. , The sanding module part that transmits the converted video signal data, the main power supply part that supplies the main power required for the LED display board, the power distribution part that distributes the power supplied from the main power supply part, the video signal and power transmitted from the sanding module part Receives the power signal supplied from the distribution unit, distributes and outputs the video signal and power signal to each LED module, and detects an output error for at least one distribution signal among the video signal and power signal distributed and output to each LED module and a cabinet module unit for matching and generating a preliminary signal corresponding to the distribution signal in which an output error is detected, and supplying a normal matching preliminary signal to the LED module in which an output error is detected. This can be achieved by providing a possible LED display board.

In addition, the cabinet module unit,

The receiving module unit receives the video signal transmitted from the sanding module unit, allocates and distributes the video signal to be transmitted to each LED module, and matches and generates a preliminary video signal corresponding to the video signal for which an output error is detected. Receives the transmitted allocated and distributed video signals and preliminary video signals, distributes and transmits the signals to LED modules matched with the video signals and preliminary video signals, and transmits at least one of the video and power distribution signals distributed and output to each LED module. A signal and power output unit that detects output errors for distribution signals, a power supply module unit that supplies power to each LED module by redistributing the power supplied from the power distribution unit and supplying it to the signal and power output units, and a power distribution unit The auxiliary power supply module part that allocates the power distributed from the distribution unit as auxiliary power and supplies it to the signal and power output part. In normal mode, it is driven by the video signal and power signal supplied from the signal and power output part. An LED module unit is driven together with a matching preliminary signal corresponding to a distribution signal for which an output error is detected, and each LED module is provided to match the resolution of the LED display board.

In addition, the signal and power output unit,

A signal and power detection unit that detects an output error of at least one distribution signal among video signals and power signals distributed from the signal and power output unit and distributed and output to each LED module, output generated and output by the signal and power detection unit When an error detection signal is received, at least one of the video signal and the power signal is transmitted from the power switchover unit and the receiving module unit to generate a transfer control signal for switching to a preliminary signal corresponding to the output error detection signal. Receives the allocated and distributed video signals and preliminary video signals, distributes and transmits the signals to each LED module matched with the video signals and preliminary video signals, and redistributes and supplies power from the power supply module unit and spares allocated from the auxiliary power supply module unit. It includes a signal and power conversion unit for matching and distributing power to each LED module.

In addition, the signal and power conversion unit,

Based on the switching control signal, it receives a preliminary video signal from the receiving module unit and a preliminary power signal from the preliminary power supply module unit, and converts and supplies normal preliminary video signals and preliminary power signals to the LED module in which an output error is detected.

In addition, the signal and power transfer unit,

By transmitting the transfer control signal to the receiving module unit, the receiving module unit matches and generates a preliminary video signal corresponding to the video signal for which the output error is detected. The preliminary video signal and the preliminary power signal corresponding to the distribution signal are converted and supplied to the LED module in which the output error is detected.

In addition, the signal and power conversion unit,

A plurality of signal and power conversion units that receive the allocated and distributed video signals transmitted from the receiving module unit and the power redistributed and supplied from the power supply module unit and distribute and transmit them to each matched LED module, and a standby unit transmitted from the receiving module unit A signal and power reserve conversion unit for receiving the video signal and the preliminary power signal supplied from the auxiliary power supply module unit and converting and supplying the normal preliminary video signal and preliminary power signal to the LED module in which an output error is detected.

In addition, the signal and power reserve conversion unit,

A switching control unit that selects and controls the video signal and power signal to be switched based on the transfer control signal, and outputs the corresponding preliminary video signal and standby power signal instead of the video signal and power signal to be switched according to the control of the switching control unit. and a switching module unit for switching and supplying a signal to be supplied to the LED module.

In addition, the receiving module unit,

The transfer signal input unit receives the transfer control signal from the signal and power transfer unit, the video signal input unit receives the video signal from the sanding module unit, and the video signal is allocated and distributed to transmit the video signal received from the video signal input unit to each LED module. and a video signal allocation output unit that outputs the allocated and distributed video signals to the signal and power switching unit, and a preliminary video signal corresponding to the video signal for which an output error is detected based on the switching control signal of the switching signal input unit is transmitted to the video signal input unit. A preliminary video signal output unit for regenerating and allocating the signal based on the signal and outputting it to the signal and power conversion unit is included.

According to the present invention as described above, the current flow of the split-allocated video signal output from the revising card to each LED module is detected, and the current flow of the power signal output from the SMPS to each LED module is detected, resulting in output failure. In this case, by supplying a preliminary video signal and a preliminary power signal to the LED module in which the output failure has occurred through a preliminary channel, there is an effect of enabling the LED module to display a normal image.

The following drawings attached to this specification illustrate a preferred embodiment of the present invention, and together with the detailed description of the present invention serve to further understand the technical idea of the present invention, the present invention is limited to those described in the drawings. It should not be construed as limiting.
1 is a diagram schematically showing the configuration of an LED display board capable of switching between a preliminary video signal and a preliminary power source according to an embodiment of the present invention;
2 is a diagram schematically showing the configuration of a cabinet module unit according to an embodiment of the present invention;
3 is a diagram schematically showing the configuration of a power supply module unit and a signal and power reserve conversion unit according to an embodiment of the present invention;
4 is a diagram schematically showing the configuration of a first signal and power conversion unit and a switching module unit according to a first embodiment of the present invention;
5 is a diagram schematically showing the configuration of a first signal and power conversion unit and a switching module unit according to a second embodiment of the present invention;
6 is a diagram schematically showing the configuration of a signal and power detection unit according to an embodiment of the present invention;
7 is a diagram schematically illustrating the configuration of a receiving module unit according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. In addition, the embodiment described below does not unduly limit the contents of the present invention described in the claims, and the entire configuration described in the present embodiment cannot be said to be essential as a solution to the present invention. In addition, descriptions of matters obvious to prior art and those skilled in the art may be omitted, and descriptions of these omitted components (methods) and functions may be sufficiently referred to within the scope not departing from the technical spirit of the present invention.

According to an embodiment of the present invention, the LED display board having an automatic switching function when a failure occurs is a video signal transmitted from the receiving module unit 100 to the LED module unit 500 and a power supply module unit 300 to the LED module. When an output failure (referred to as an output error in the present invention) occurs in the power signal supplied to the unit 500, a preliminary video signal and a preliminary power signal corresponding to the video signal and power signal in which the output failure occurs are generated to prevent the output failure. It is an LED signboard device capable of switching redundancy so that signals can be normally switched and supplied to the generated LED module. As an example of an output failure, there may be a contact failure of a cable plugged into the receiving module unit 100 or a failure of an output channel, and also a failure of power output from the power supply module unit 300. . In the present invention, by detecting an output error of a video signal and an output error of a power supply due to a cable defect or a defect of an output channel, and switching and supplying the power to a spare channel, a normal signal is supplied to the LED module in which an output error occurs so that normal output is achieved. can do. Hereinafter, with reference to the accompanying drawings, a detailed description will be given of an LED display board having a built-in automatic switching function in case of failure according to an embodiment of the present invention.

As shown in FIG. 1, the video signal source management unit 10 according to an embodiment of the present invention stores and manages video signal sources to be displayed in the LED module. Accordingly, the video signal source management unit 10 may be embodied as a computer and a monitor as an example. The video signal source management unit 10 transmits the video signal source to be displayed on the LED module to the sanding module unit 20 to be described later.

The sanding module unit 20 according to an embodiment of the present invention converts the video signal source provided by the video signal source operation unit 10 into a signal suitable for the screen resolution of the LED display board, and converts the converted video signal data into a receiving module. Send to unit 100. The sanding module unit 20 may perform data buffering and scaling of a video signal source by an embedded video processor. The sanding module unit 20 may be called a so-called main controller unit and may include a sanding card and a function card. However, the description of the specific function of the sanding module unit 20 described in the present invention may be referenced within the scope that does not deviate from the technical spirit of the present invention.

The main power supply unit 40 according to an embodiment of the present invention supplies overall power for driving the LED display board. Power supplied from the main power supply unit 40 is supplied to the sanding module unit 20, the power supply module unit 300, and the auxiliary power supply module unit 400.

The power distribution unit 50 according to an embodiment of the present invention distributes the power supplied from the above-described main power supply unit 40 to the sanding module unit 20, the power supply module unit 300, and the auxiliary power supply module unit. 400, respectively, are distributed and supplied.

The plurality of cabinet module units 31, 32, and 33 according to an embodiment of the present invention include a frame-in cabinet, a receiving module unit 100 module mounted in the cabinet, a signal and power output unit 200, and a power supply module. unit 300, the auxiliary power supply module unit 400 and the LED module unit 500 are individually included. Each of the cabinet module units 31 , 32 , and 33 receives a video signal and a power signal supplied from the sanding module unit 20 and the power distribution unit 50 , respectively.

The first cabinet module unit 31 receives an image signal to be displayed on the LED module mounted in the first cabinet from the sanding module unit 20, and the second cabinet module unit 32 receives a video signal to be displayed on the LED module mounted in the first cabinet. The image signal to be displayed on the LED module is supplied from the sanding module unit 20, and the third cabinet module unit 33 supplies the image signal to be displayed on the LED module mounted in the third cabinet from the sanding module unit 20. receive

Meanwhile, taking the first cabinet module unit 31 as an example, the first cabinet module unit 31 transmits the video signal transmitted from the sanding module unit 20 and the power signal supplied from the power distribution unit 50. It receives and distributes and outputs video signals and power signals to each LED module, and detects an output error of at least one distribution signal among the video signals and power signals distributed and output to each LED module, and the distribution signal in which the output error is detected A preliminary video signal and a preliminary power signal, which are preliminary signals corresponding to , are matched and generated, and a normal matching preliminary signal is supplied to the LED module in which an output error is detected. That is, if there is a problem with at least one of the plurality of video signals and power signals output from the first cabinet module unit 31 to the LED module, a normal image is displayed in the LED module directly connected to the output error signal. can't Therefore, in the present invention, it detects that a problem has occurred in at least one of the output video signal and power signal, and generates the same video signal and power signal as the video signal in which the problem occurred and transmits them through a spare channel. Make sure that the image is displayed normally in the LED module. Meanwhile, descriptions of the second cabinet module unit 32 and the n-th cabinet module unit 33 will be replaced with the description of the first cabinet module unit 31, and hereinafter, the first cabinet module unit 31 will be used as an example. listen and explain

As shown in FIG. 2, the cabinet module unit 31 according to an embodiment of the present invention includes a receiving module unit 100, a signal and power output unit 200, a power supply module unit 300, and a backup power supply. It may be provided including the supply module unit 400 and the LED module unit 500 .

The receiving module unit 100 according to an embodiment of the present invention receives a signal related to an image to be displayed on the LED module from the sanding module unit 20, allocates and distributes the video signal to be transmitted to each LED module, and output error A preliminary video signal corresponding to the detected video signal is matched and generated. That is, the receiving module unit 100 outputs the allocated and distributed video signals to the first signal and power switching unit 231 and the n-th signal and power switching unit 233, and converts the preliminary video signals to the signal and power preliminary switching. output to unit 234. The first signal and power conversion unit 231 supplies the first video signal and power signal allocated to the first LED module unit 510, and the n-th signal and power switching unit 233 supplies the n-th LED module unit ( 530) to supply the allocated n-th video signal and power signal. Several LED modules are disposed in each of the LED module units 510 , 520 , and 530 according to the resolution, and the LED modules are appropriately disposed in the cabinet module unit 31 according to the total resolution of the LED display board.

The preliminary video signal and the preliminary power signal, which are preliminary signals supplied through the preliminary channel, are supplied to the signal and power preliminary conversion unit 234. The signal and power preliminary switching unit 234 is switched so that a preliminary signal is supplied to the corresponding LED module instead of the video signal and the power signal in which an output error is detected.

As shown in FIG. 2, the power supply module unit 300 according to an embodiment of the present invention supplies power to the first signal and power conversion unit 231 and the n-th signal and power conversion unit 233, respectively. . The auxiliary power supply module unit 400 according to an embodiment of the present invention supplies auxiliary power to the signal and power preliminary conversion unit 234 .

Meanwhile, as shown in FIG. 7, the receiving module unit 100 includes a switching signal input unit 110, a video signal input unit 120, a video signal allocation output unit 130, a preliminary video signal output unit 140, A receiving signal controller 150 is included.

The transfer signal input unit 110 according to an embodiment of the present invention receives a transfer control signal from the signal and power transfer unit 220 . That is, when an output error occurs in the video signal and the power signal supplied from the signal and power switching unit 220, the signal and power switching unit 220 generates a switching control signal accordingly, and the switching signal input unit 110 A transfer control signal recognizing that an output error has occurred is received from the signal and power transfer unit 220 .

The video signal input/output unit 120 according to an embodiment of the present invention receives a video signal to be output to the LED module from the sanding module unit 20 . In addition, the video signal input/output unit 120 outputs the same video signal as the video signal in which the output error occurred to the preliminary video signal output unit 140 at the request of the preliminary video signal output unit 140 to be described later. However, the preliminary video signal output unit 140 may request the same video signal as the video signal in which the output error has occurred from the video signal input/output unit 120, and if necessary, the video signal allocation output unit for which the video signal has already been allocated ( In step 130), the same video signal as the video signal in which the output error occurred may be requested. Therefore, the functions of the video signal input/output unit 120 and the video signal allocation output unit 130 may be integrated as needed.

In addition, the preliminary video signal request message output from the preliminary video signal output unit 140 to the video signal input/output unit 120 or the video signal allocation output unit 130 may include information about the video signal in which an output error has occurred. As an example, as shown in FIG. 4 , when a problem occurs in the video signal and the power signal supplied to the first LED module unit 510, the preliminary video signal request message includes the video supplied to the first LED module unit 510. Information that can be identified as a signal is included. According to the preliminary video signal request message, the video signal input/output unit 120 or the video signal allocation output unit 130 transmits the same video signal as the video signal supplied to the first LED module unit 510 to the preliminary video signal output unit 140. ) is sent in response.

The video signal allocation output unit 130 according to an embodiment of the present invention allocates and distributes the video signals to transmit the video signals input from the video signal input/output unit 120 to each LED module, and outputs the allocated and distributed video signals. The first signal and power switching unit 231, the second signal and power switching unit 232, and the n-th signal and power switching unit 233 are respectively supplied.

The preliminary video signal output unit 140 according to an embodiment of the present invention transmits a preliminary video signal corresponding to the video signal in which an output error is detected based on the switching control signal of the switching signal input unit 110 to the video signal input/output unit 120. ) Based on the video signal of regeneration and allocation, output to the signal and power preliminary switching unit 234, or receive a preliminary video signal corresponding to the video signal for which the output error is detected and output from the video signal allocation output unit 130 It can be output to the signal and power reserve conversion unit 234. Since the switching control signal includes information on the video signal in which an output error has occurred, a corresponding preliminary video signal can be obtained from the video signal input/output unit 120 or the video signal allocation output unit 130 .

The receiving signal control unit 150 according to an embodiment of the present invention resizes the size of the video signal received from the sanding module unit 20 and generates an RGB signal, a clock signal, and a control signal for the size of the signal. can Also, overall control of the receiving module unit 100 is performed. Meanwhile, the receiving module unit 100 may be embodied as a receiving card, and a functional description of a receiving card not described in the present invention may be referred to within the creative scope of the technical idea of the present invention.

The signal and power output unit 200 according to an embodiment of the present invention receives the allocated and distributed video signals and preliminary video signals transmitted from the receiving module unit 100 and is an LED module matched with the video signals and preliminary video signals. The signal is distributed and transmitted to each LED module, and an output error of at least one distribution signal among video and power distribution signals distributed and output to each LED module is detected. To this end, the signal and power output unit 200 includes a signal and power detection unit 210, a signal and power switching unit 220, and a signal and power switching unit 230, as shown in FIG.

As shown in FIG. 6, the signal and power detection unit 210 according to an embodiment of the present invention is distributed in the signal and power conversion unit 230 and distributed and outputted to each LED module. At least one of the video signal and the power signal Detect output errors for one distribution signal. To this end, the signal and power detector 210 includes a video signal detector 211 and a power current detector 212 . The video signal detector 211 includes first,... In the .,n signal and power conversion units 231 and 233, the first,... .,n Detects an output error of the video signal output to the LED module units 510 and 530. In addition, the power supply current sensor 212 includes first,... In the .,n signal and power conversion units 231 and 233, the first,... .,n Detects an output error of the power signal output to the LED module units 510 and 530. As an example, as shown in FIG. 4 , it is detected that there is a problem with the video signal and the power signal output from the first signal and power conversion unit 231 to the first LED module unit 510 .

The signal and power switching unit 220 according to an embodiment of the present invention receives the output error detection signal generated and output by the signal and power detection unit 210 and outputs at least one of a video signal and a power signal as an error. A switching control signal for switching through a preliminary channel is generated with a preliminary signal corresponding to the detection signal.

As an example, as shown in FIG. 4, the switching control signal includes a switching control signal for switching a spare channel, a first signal, and a video signal and a power signal output from the power switching unit 231 to the first LED module unit 510. It may include output error information indicating that there is a problem with The generated transfer control signal is transferred to the transfer signal input unit 110 of the receiving module unit 100, first, ... .,n are output to the signal and power conversion units 231, 232, and 233 and the signal and power reserve conversion unit 234, respectively. However, the first... It is preferable that the .,n signal and the transfer control signal output to the power conversion units 231, 232, and 233 are output only to the signal and the power conversion unit where an output error has occurred.

The signal and power switching unit 230 according to an embodiment of the present invention has a normal mode and a preliminary switching mode, and as shown in FIG. 2, the video signal allocation output unit 130 of the receiving module unit 100 Receives the allocated and distributed video signal transmitted from and the preliminary video signal transmitted from the preliminary video signal output unit 140 and distributes and transmits the signal to each LED module matched with the video signal and preliminary video signal, and the power supply module unit ( The power redistributed in 300 and the auxiliary power allocated in the auxiliary power supply module unit 400 are matched, distributed, and transmitted to each LED module. In the normal mode, the first, . . . , . .,n This is a mode in which video signals and power signals are supplied to the LED module only through the signal and power conversion units 231, 232, and 233. In contrast, the preliminary switching mode is a mode for switching and outputting a preliminary signal identical to at least one of a video signal and a power signal in which an output error has occurred to a corresponding LED module through a preliminary channel. As an example, as shown in FIG. 4, when an output error of the first video signal and the first power signal output from the first signal and power conversion unit 231 to the first LED module unit 510 occurs, the normal mode is converted to the preliminary switching mode. The control mode is changed to , and the preliminary video signal and the preliminary power signal corresponding to the first video signal and the first power signal are supplied to the first LED module unit 510 through the preliminary channel. On the other hand, other video signals and power signals in which no output error has occurred are the same as before without switching the signals, respectively, in the second, ... Through the .,n signal and the power conversion units 232 and 233, respectively, the second,... .,n is output to the LED module units 520 and 530.

The signal and power conversion unit 230 includes first,... .,n includes signal and power conversion units 231, 232, and 233 and a signal and power reserve conversion unit 234.

The first signal and power conversion unit 231 according to an embodiment of the present invention provides the first video signal allocated and distributed in the video signal allocation output unit 130 of the receiving module unit 100 and the power supply module unit 300. ) receives the first power signal redistributed from the first power supply module unit 310 and supplies the first image signal and the first power signal to the matched first LED module unit 510 . The second signal and power conversion unit 232 transmits the second video signal allocated and distributed by the video signal allocation output unit 130 of the receiving module unit 100 and the second power supply module unit of the power supply module unit 300. The second image signal and the second power signal are supplied to the matched second LED module unit 520 by receiving the second power signal redistributed and supplied in 320 . The n-th signal and power conversion unit 233 allocates and distributes the n-th video signal from the video signal allocation output unit 130 of the receiving module unit 100 and the n-th power supply module unit of the power supply module unit 300. The nth image signal and the nth power signal are supplied to the matched nth LED module unit 530 by receiving the nth power signal redistributed and supplied in 330 .

As an example, as shown in FIG. 4 , when an output error between the first video signal and the first power signal occurs, the first signal and power switching unit 231 according to the switching control signal of the signal and power switching unit 220 The switch of is switched to be 'open'. When the switch of the first signal and power conversion unit 231 is opened, a preliminary signal is supplied to the first LED module unit 510 through a preliminary channel.

The signal and power preliminary switching unit 234 according to an embodiment of the present invention is a spare channel, and the preliminary video signal transmitted from the preliminary video signal output unit 140 of the receiving module unit 100 and the preliminary power supply module unit. It receives the preliminary power signal supplied from 400 and converts and supplies a normal preliminary video signal and preliminary power signal to the LED module in which an output error is detected.

At this time, as shown in FIG. 4, the signal and power preliminary switching unit 234 as a first embodiment of the signal and power preliminary switching unit 234 includes a switching control unit 234a and a switching module unit 234b.

The switching control unit 234a according to the first embodiment controls switching so that the preliminary signal is output through the preliminary channel based on the signal and the switching control signal output from the power switching unit 220 . As an example, as shown in FIG. 4 , the switching control unit 234a replaces the first video signal and the first power signal in which an output error occurs when a switching control signal is received, and the switching input unit 234b- of the switching module unit 234b Transfer and control the switch of 1). Accordingly, the preliminary signal switched through the switching module unit 234b may be supplied to the first LED module unit 510 . On the other hand, the switch described in the present invention may be a physical switch that is transferred according to an electrical signal as an example.

According to the control of the switching control unit 234a, the switching module unit 234b according to the first embodiment outputs a preliminary video signal and a preliminary power signal corresponding thereto instead of the video signal and power signal in which the output error occurred, to the LED in which the error was detected. Switch the signal to supply to the module. To this end, the switching module unit 234b includes a switching input unit 234b-1 and a switching output unit 234b-2. The switching input unit 234b-1 receives a preliminary video signal corresponding to an output error from the preliminary video signal output unit 140 of the receiving module unit 100, and receives a preliminary power signal from the preliminary power supply module unit 400. receive input For example, if the first video signal has a problem, the same preliminary video signal as the first video signal is received, and if the second video signal has a problem, the same preliminary video signal as the second video signal is received. Meanwhile, the switching input unit 234b-1 changes the switch to supply the inputted preliminary video signal and preliminary power signal to the LED module in which the output error occurs under the control of the switching controller 234a. In FIG. 4 , the switch of the switching input unit 234b - 1 is changed to supply a preliminary video signal and a preliminary power signal to the first LED module unit 510 . The switching output unit 234b-2 outputs and supplies a preliminary video signal and a preliminary power signal output according to the switching of the switching input unit 234b-1 to the corresponding LED module unit. To this end, the plurality of switching output units 234b-2 may be electrically 1:1 connected to the plurality of LED module units.

Meanwhile, as shown in FIG. 5, as a second embodiment of the signal and power preliminary switching unit 234, the signal and power preliminary switching unit 234 includes a switching control unit 234a and a switching module unit 234b. .

The switching control unit 234a according to the second embodiment controls switching so that the preliminary signal is output through the preliminary channel based on the signal and the switching control signal output from the power switching unit 220 . As an example, as shown in FIG. 5 , when the switching control signal is received, the switching control unit 234a switches the switching module unit 234b so that the first video signal and the first power signal in which an output error occurs are replaced and output. control cut-off Accordingly, the preliminary signals (the first video signal and the first power signal) switched through the switching module unit 234b as a preliminary channel may be supplied to the first LED module unit 510 . Before the preliminary channel operates, as shown in FIG. 5 , it is preferable to ensure that the switch of the switching module unit 234b is not switched and electrically connected to each of the LED module units 510 , 520 , and 530 .

According to the control of the switching control unit 234a, the switching module unit 234b according to the second embodiment outputs a preliminary video signal and a preliminary power signal corresponding thereto instead of the video signal and power signal in which the output error occurred, to the LED in which the error was detected. Switch the signal to supply to the module.

To this end, the switching module unit 234b includes a switching input unit 234b-1 and a switching output unit 234b-2. The input terminal of the switching module unit 234b has two input port terminals, and the first input port terminal receives a preliminary video signal corresponding to an output error from the preliminary video signal output unit 140 of the receiving module unit 100. and the second input port terminal receives the preliminary power signal from the auxiliary power supply module unit 400 . For example, if the first video signal has a problem, the same preliminary video signal as the first video signal is received, and if the second video signal has a problem, the same preliminary video signal as the second video signal is received.

Meanwhile, the output port of the switching module unit 234b may be composed of four output port terminals as an example, and as shown in FIG. 5, the first and second output port terminals are connected to the LED module unit when the preliminary channel does not operate. It is a port for electrically disconnecting the connection, and the third and fourth output port terminals are port terminals for electrically connecting and connecting the LED module unit when the preliminary channel is operated. The third and fourth output port terminals are electrically connected to the first, second and n LED module units 510 , 520 and 530 .

Accordingly, as an example, as shown in FIG. 5 , when the first video signal is a problem, the first input port terminal of the switching module unit 234b transmits the same preliminary video signal as the first video signal to the preliminary video signal of the receiving module unit 100. It is input from the signal output unit 140. At this time, the second input port terminal of the switching module unit 234b is always electrically connected to the auxiliary power supply module unit 400 . The first and second output port terminals of the switching module unit 234b are switched to the third and fourth output port terminals according to the control signal of the switching control unit 234a. Accordingly, the first and second input port terminals of the switching module unit 234b are electrically connected to the third and fourth output port terminals, respectively. On the other hand, since the third and fourth output port terminals are electrically connected to the first, second, and n LED module units 510, 520, and 530 in common, the preliminary image signals corresponding to the first image signal in question are both first and second. ,n There is a problem of being output to the LED module units 510, 520, and 530. In order to solve this problem, the first, second, and n LED module units 510, 520, and 530 provide an image signal and a preliminary image based on the signal selection control signal transmitted from the receiving module unit 100 or the signal and power output unit 200. Select one of the signals to express.

As described above, when the first image signal expressed from the first LED module unit 510 becomes a problem, a preliminary image signal is supplied to the first LED module unit 510 through the switching module unit 234b. At this time, the first LED module unit 510 is transmitted through a spare channel instead of the problematic video signal based on the signal selection control signal transmitted from the receiving module unit 100 or the signal and power output unit 200. A preliminary video signal is displayed. In addition, the second, . . . which is not a problem with the rest. .,n LED module units 520, ...., 530 have no problem, respectively, the second, ... .,n The video signal is supplied through the signal and power conversion unit 230, and at the same time, the preliminary video signal related to the first video signal is transmitted doubly through the preliminary channel. At this time, the second, . . . .,n The LED module units 520 and 530 ignore the preliminary video signal transmitted through the preliminary channel based on the signal selection control signal transmitted from the receiving module unit 100 or the signal and power output unit 200, and continuously By the second,… .,n Controls each video signal to be displayed.

The LED module unit 500 according to an embodiment of the present invention includes first,... .,n includes LED module units 510, 520, and 530. The LED module unit 500 is driven by the video signal and power signal supplied from the signal and power output unit 200 in the normal mode, and in the preliminary switching mode, it is driven with a preliminary signal corresponding to the signal detected with an output error. . Each LED module provided in the LED module unit 500 is provided according to the resolution of the LED display board. In addition, each LED module unit in the above-described second embodiment has a spare channel instead of the problematic video signal based on the signal selection control signal transmitted from the receiving module unit 100 or the signal and power output unit 200. Selective control is performed so that the preliminary video signal transmitted through the display is displayed or the video signal in question is ignored and the video signal is continuously displayed.

In describing the present invention, descriptions of matters obvious to those skilled in the art and those skilled in the art may be omitted, and descriptions of these omitted components (methods) and functions will be sufficiently referred to within the scope that does not depart from the technical spirit of the present invention. You will be able to. In addition, the above-described components of the present invention have been described for convenience of description of the present invention, but components not described herein may be added within a range that does not deviate from the technical spirit of the present invention.

The description of the configuration and function of each part described above has been separately described for convenience of explanation, but any one configuration and function may be implemented by integrating into other components or implemented in more subdivided form, if necessary.

Although the above has been described with reference to one embodiment of the present invention, the present invention is not limited thereto, and various modifications and applications are possible. That is, those skilled in the art will easily understand that many modifications are possible without departing from the gist of the present invention. In addition, when it is determined that the detailed description of known functions and their configurations related to the present invention or the coupling relationship of each component of the present invention may unnecessarily obscure the gist of the present invention, it should be noted that the detailed description is omitted. something to do.

10: video signal source operation unit
20: sanding module part
31,... .,33: first,... .,n cabinet module part
40: main power supply
50: power distribution unit
100: receiving module unit
110: transfer signal input unit
120: video signal input and output unit
130: video signal allocation output unit
140: preliminary video signal output unit
150: receiving signal control unit
200: signal and power output unit
210: signal and power detection unit
211: video signal detection unit
212: power current detection unit
220: signal and power switching unit
230: signal and power conversion unit
231: first signal and power conversion unit
232: second signal and power conversion unit
233: nth signal and power conversion unit
234: signal and power reserve conversion unit
234a: switching control unit
234b: switching module unit
234b-1: switching input
234b-2: switching output unit
300: power supply module unit
310,... .,330: first,... .,n power supply module part
400: spare power supply module unit
500: LED module part
510,... .,530: first, ... .,n LED module part

Claims (8)

A video signal source operation unit that manages a video signal source for supplying video signals to the LED display board,
A sanding module unit that receives the video signal source transmitted from the video signal source operator, converts the signal according to the resolution of the LED display board, and transmits the converted video signal data;
A main power supply unit supplying main power required for the LED display board;
A power distribution unit for distributing the power supplied from the main power supply unit;
The video signal transmitted from the sanding module unit and the power signal supplied from the power distribution unit are received, the video signal and the power signal are distributed and output to each LED module, and at least of the video signal and power signal distributed and output to each LED module. The cabinet module unit that detects an output error for any one distribution signal, matches and generates a preliminary signal corresponding to the distribution signal for which an output error is detected, and transfers and supplies a normal matching preliminary signal to the LED module where the output error is detected. contains,
The cabinet module unit,
A receiving module unit that receives the video signal transmitted from the sanding module unit, allocates and distributes the video signal to be transmitted to each LED module, and matches and generates a preliminary video signal corresponding to the video signal for which the output error is detected;
Receives the allocated and distributed video signals and preliminary video signals transmitted from the receiving module unit, distributes and transmits the signals to LED modules matched with the video signals and preliminary video signals, and distributes and outputs video and power to each LED module. A signal and power output unit for detecting an output error for at least one distribution signal among distribution signals;
A power supply module unit for supplying power to each LED module by redistributing the power distributed and supplied by the power distribution unit and supplying the power to the signal and power output units;
A spare power supply module unit for allocating the power distributed and supplied from the power distribution unit as standby power and supplying it to the signal and power output unit;
In the normal mode, it is driven by the signal and the video signal and power signal supplied from the power output unit, and in the preliminary conversion mode, it is driven together with the matching preliminary signal corresponding to the distribution signal in which the output error is detected. It includes an LED module unit provided to match the resolution of the LED signboard,
The signal and power output unit,
A signal and power detection unit for detecting an output error of at least one distribution signal of a video signal and a power signal distributed from the signal and power output unit and distributed and output to each LED module;
Upon receiving the output error detection signal generated and output from the signal and power detection unit, at least one of the video signal and the power signal is switched to the preliminary signal corresponding to the output error detection signal. Generating a switching control signal signal and power switch,
Receives the allocated and distributed video signals and preliminary video signals transmitted from the receiving module unit, distributes and transmits the signals to each LED module matched with the video signals and preliminary video signals, and redistributes and supplies power from the power supply module unit. And a signal and power conversion unit for matching, distributing, and transmitting the standby power allocated from the standby power supply module unit to each LED module,
The receiving module unit,
A transfer signal input unit receiving the transfer control signal from the signal and power transfer unit;
A video signal input/output unit for receiving a video signal from the sanding module unit;
A video signal allocation output unit for allocating and distributing the video signals received from the video signal input/output unit to transmit the video signals to each LED module and outputting the allocated and distributed video signals to the signal and power conversion unit;
Based on the switching control signal of the switching signal input unit, a preliminary video signal corresponding to the video signal for which an output error is detected is regenerated and allocated based on the video signal of the video signal input/output unit, and output to the signal and power switching unit or the video signal and a preliminary video signal output unit outputting a preliminary video signal corresponding to the video signal for which the output error is detected among the video signals allocated by the signal allocation output unit to the signal and power conversion unit. LED display board with built-in functions.
delete delete According to claim 1,
The signal and power conversion unit,
Based on the switching control signal, the preliminary video signal from the receiving module unit and the preliminary power signal from the preliminary power supply module unit are input, and a normal preliminary video signal and preliminary power signal are switched and supplied to the LED module in which an output error is detected. An LED display board with a built-in automatic transfer function in the event of a failure, characterized in that.
According to claim 1,
The signal and power switching unit,
By transmitting the switching control signal to the receiving module unit, the receiving module unit matches and generates a preliminary video signal corresponding to the video signal for which the output error is detected;
By transmitting the switching control signal to a signal and power switching unit, the preliminary video signal and the preliminary power signal corresponding to the distribution signal in which the output error is detected are switched and supplied to the LED module in which the output error is detected. LED display board with built-in auto-switching function.
According to claim 1,
The signal and power conversion unit,
A plurality of signal and power conversion units that receive the allocated and distributed video signals transmitted from the receiving module unit and the redistributed power supplied from the power supply module unit and distribute and transmit them to the matched LED modules;
A signal and power reserve that receives the preliminary video signal transmitted from the receiving module unit and the preliminary power signal supplied from the auxiliary power supply module unit and converts and supplies the normal preliminary video signal and preliminary power signal to the LED module in which an output error is detected. An LED display board with a built-in automatic switching function in the event of a failure, characterized in that it includes a conversion unit.
According to claim 6,
The signal and power preliminary conversion unit,
A switching controller for controlling output of a preliminary signal through a preliminary channel based on the switch control signal;
and a switching module unit supplying the corresponding preliminary video signal and preliminary power signal to the LED module in which the output error is detected, instead of the video signal and the power signal, which are preliminary signals in which the output error occurs, according to the control of the switching control unit. LED display board with built-in automatic switching function in case of failure.
delete