CN112331133A - Display control method, device, medium and system of LED screen - Google Patents

Display control method, device, medium and system of LED screen Download PDF

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Publication number
CN112331133A
CN112331133A CN202010857835.4A CN202010857835A CN112331133A CN 112331133 A CN112331133 A CN 112331133A CN 202010857835 A CN202010857835 A CN 202010857835A CN 112331133 A CN112331133 A CN 112331133A
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China
Prior art keywords
led box
box body
body unit
display
display data
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CN202010857835.4A
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Chinese (zh)
Inventor
徐执明
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Zhejiang Uniview Technologies Co Ltd
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Zhejiang Uniview Technologies Co Ltd
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Priority to CN202010857835.4A priority Critical patent/CN112331133A/en
Publication of CN112331133A publication Critical patent/CN112331133A/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Multimedia (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)

Abstract

The embodiment of the application discloses a display control method, a display control device, a display control medium and a display control system of an LED screen. The method comprises the following steps: acquiring display data returned by a target LED box body unit corresponding to a echoing network port through the echoing network port; the display data is sent to the target LED box body unit by the original network port; the target LED box body unit is at least one display unit of the LED box body; and determining whether the target LED box body unit fails according to the display data acquired by the echoing network port. By executing the scheme, the purpose of accurately monitoring whether the LED box body unit has faults or not can be achieved.

Description

Display control method, device, medium and system of LED screen
Technical Field
The embodiment of the application relates to the technical field of LED display, in particular to a display control method, a display control device, a display control medium and a display control system of an LED screen.
Background
With the rapid development of science and technology, the display means of information is also increasing. However, most of the current LED screen display technologies are still LED screen display technologies, and the LED display screen usually sends a display signal from a playing device, receives the display signal from a controller of the LED display screen box, and sends the display signal to each LED box unit in the form of display data for displaying.
However, in the prior art, it is impossible to effectively monitor whether each LED box unit has a fault. Although an image acquisition unit is arranged on the opposite side of the display screen to acquire a real-time image of the display screen, a result of whether a fault exists is obtained according to an image identification technology. However, this approach is too environmentally limited and does not have sufficient height to place the image capture unit for high-altitude LED displays. For the LED display screen with lower height, the LED display screen is shielded due to walking of people and the like, so that fault error identification is caused.
Disclosure of Invention
The embodiment of the application provides a display control method, a display control device, a display control medium and a display control system of an LED screen, and the purpose of accurately monitoring whether a fault exists in an LED box body unit can be achieved.
In a first aspect, an embodiment of the present application provides a display control method for an LED screen, where the method includes:
acquiring display data returned by a target LED box body unit corresponding to a echoing network port through the echoing network port; the display data is sent to the target LED box body unit by the original network port; the target LED box body unit is at least one display unit of the LED box body;
and determining whether the target LED box body unit fails according to the display data acquired by the echoing network port.
In a second aspect, an embodiment of the present application provides a display control apparatus for an LED screen, the apparatus including:
the display data read-back module is used for acquiring display data returned by the target LED box body unit corresponding to the display-back net port through the display-back net port; the display data is sent to the target LED box body unit by the original network port; the target LED box body unit is at least one display unit of the LED box body;
the fault judgment module is used for determining whether the target LED box body unit is in fault or not according to the display data acquired by the echoing network port;
and the fault information sending module is used for sending out fault information if the fault judgment module judges that the fault information is positive.
In a third aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a display control method for an LED screen according to the present application.
In a fourth aspect, an embodiment of the present application provides a system, including: the system comprises an LED controller, an LED box body unit, an original net port and a redisplay net port;
the LED controller is connected with the original net port and the redisplay net port, the original net port is connected with an LED box body unit, and the tail end of the LED box body unit is connected with the redisplay net port;
the original network port is used for sending display data to the LED box body unit;
the redisplay net port is used for acquiring display data returned by the LED box body unit corresponding to the redisplay net port;
and the LED controller is used for determining whether the target LED box body unit is in fault or not according to the display data acquired by the echoing network port.
Further, the system further comprises: managing a network port and a remote display end;
the management network port is connected with the LED controller and used for sending fault information to a remote display end through a network;
and the remote display end is connected with the management network port through a network and is used for receiving the fault information and displaying the position of the target LED box body unit with the fault in a differentiated mode.
According to the technical scheme provided by the embodiment of the application, display data returned by the target LED box body unit corresponding to the echoing net port are obtained through the echoing net port; the display data is sent to the target LED box body unit by the original network port; the target LED box body unit is at least one display unit of the LED box body; and determining whether the target LED box body unit fails according to the display data acquired by the echoing network port. According to the technical scheme, whether the LED box body unit has faults or not can be accurately monitored through the echoing.
Drawings
FIG. 1 is a flowchart of a display control method of an LED screen provided in an embodiment of the present application;
FIG. 2 is a flow chart of an LED box structure provided by the embodiment of the present application;
FIG. 3 is a schematic diagram of a failure of an LED panel provided by an embodiment of the present application;
FIG. 4 is a flowchart of a display control method of an LED screen provided in an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a display control device of an LED screen provided in an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a display control system of an LED screen provided by an embodiment of the present application;
FIG. 7 is a schematic structural diagram of an LED box unit provided in the embodiment of the present application;
FIG. 8 is a schematic structural diagram of another display control system of an LED screen provided by an embodiment of the present application;
fig. 9 is a schematic information flow diagram of a display control system of an LED screen according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures.
Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the steps as a sequential process, many of the steps can be performed in parallel, concurrently or simultaneously. In addition, the order of the steps may be rearranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Fig. 1 is a flowchart of a display control method of an LED screen according to an embodiment of the present disclosure, where the present disclosure is applicable to monitoring an operating condition of an LED screen, and the method may be executed by a display control apparatus of an LED screen according to an embodiment of the present disclosure, where the apparatus may be implemented by software and/or hardware, and may be integrated in an electronic device with corresponding operation capability.
As shown in fig. 1, the display control method of the LED screen includes:
s110, display data returned by the target LED box body unit corresponding to the echoing net port are obtained through the echoing net port; the display data is sent to the target LED box body unit by the original network port; the target LED box body unit is at least one display unit of the LED box body.
The echoing network port may be disposed inside an LED (Light Emitting Diode) box. The LED box body can be an integrated display device with one side provided with an LED box body unit, namely a light emitting diode, and the inside of the box body is provided with a circuit for driving the LED box body unit to operate, a controller and other structures. It can be understood that in practical use, the LED box can be stacked by a plurality of LED boxes to form a larger LED display screen. Only one LED box body can be used as a display screen.
The LED housing units may be arranged in a matrix form. For example, 96 rows and 48 columns of LED box units can be arranged on one LED box, and more or fewer LED box units can be arranged on the LED box, which can be determined according to the arrangement requirements of the LED box units during production.
In this embodiment, this is optional. The LED box body unit cascaded between the original network port and the redisplay network port forms a data display loop; the cascaded LED box units are a row of LED box units in the LED box.
Taking the example that each column of LED box units is individually controlled, the original net port may be the lowest or the uppermost LED box unit connected to the column of LED box units, then all the LED box units in the column are connected in series in sequence, and finally, the lowest or the uppermost LED box unit is connected to the redisplay net port. Therefore, a series circuit from the original net port to each LED box body unit and then to the echo net port can be obtained.
After the series circuit is determined, display data can be sent to the target LED box body unit through the original network port. Wherein, the display data can be the contents that the LED box units in the column need to display. Because the contents to be displayed by each LED box unit are not necessarily the same, a rule for reading data by each LED box unit may be preset, for example, after the data is transmitted from the original network port to the first LED box unit for displaying, the LED box unit only reads the data to be displayed, the contents of the display data are not changed, and then the data are transmitted to the second LED box unit, and are sequentially read and transmitted until the display data are read through the display network port.
At one end of the echoing network port, whether the line of data is normally displayed can be determined by reading the display data.
The executing main body of the scheme can be an LED controller, and the controller can be arranged inside the LED box body or arranged outside the LED box body, such as an intelligent terminal for controlling the LED box body to display contents.
In this embodiment, optionally, the process of sending the display data from the original network port to the target LED box unit includes:
the original network port sends display data to the first-stage LED box body unit, and the first-stage LED box body unit determines the display data of the first-stage LED box body unit from the display data according to the configuration coordinate data information; and transmitted to the next stage;
and the next-stage LED box body unit determines the display data of the LED box body unit from the display data according to the configuration coordinate data information, and continuously transmits the display data until the display data are transmitted to the last-stage LED box body unit, and the display data are transmitted to the redisplay net port by the last-stage LED box body unit.
Fig. 2 is a flowchart of an LED box structure provided in an embodiment of the present application. As shown in fig. 2, the original network interface sends display data to the first LED box unit, the first LED box unit automatically obtains the required data from the display data stream according to the configuration coordinate data information, and then transfers the data to the next LED box unit 01 without changing, and the LED box unit 01 transfers the data to the LED box unit 0X, and finally reaches the display-back receiving network interface through the LED box unit 0N; if the LED box body unit has faults, the LED data information can not be received at the redisplay network port. It may be determined that there is a failure.
And S120, determining whether the target LED box body unit is in fault or not according to the display data acquired by the echoing network port.
The method includes the steps of obtaining display data, comparing the obtained display data with display data sent by an original network port, determining whether difference or deficiency exists or not, and if yes, determining that the target LED box body unit has a fault.
It is understood that in the above examples, one column of LED box units may be used as the target LED box unit, and one LED box may contain a plurality of target LED box units. And only under the condition that all target LED box body units can work normally, the LED box body can be determined to operate normally.
In this scheme, optionally, determining whether the target LED box unit fails according to the display data acquired by the echoing network port includes:
if the echoing network port obtains display data, determining that the target LED box body unit has no fault;
and if the display data is not acquired by the echoing network port, determining that the target LED box body unit has a fault.
If the redisplay net port can acquire the display data, it indicates that the target LED box unit corresponding to the redisplay net port is not faulty, and in this case, the display data can be transmitted back. And if the redisplay net port cannot acquire the display data, the target LED box body unit corresponding to the redisplay net port has a fault. The reason for the fault may be that one or more LED box units are damaged, data to be displayed cannot be read normally and the data to be displayed cannot be transmitted, or the connection between the LED box units has a fault.
In the case of a fault, a fault message may be issued. Specifically, the failure information may include location information of a target LED box unit with a failure, such as XX box XX column box unit with a failure. Besides sending out fault information in the form of data, the fault position of the LED box body unit can be determined by framing the data obtained by each echoing net port to obtain image frames spliced by each echoing net port.
Fig. 3 is a schematic diagram of a failure of an LED panel provided in an embodiment of the present application. As shown in FIG. 3, the left side is a normal LED screen playback image, where A, B, C and D can be represented as four target LED box units. And the right side is a fault LED screen redisplay image, wherein a fault exists in a target LED box body unit of the B column, and characters can be added in a fault area in the process of displaying the image frames again so that a worker can more intuitively determine the position where the image is abnormal.
In the scheme, the sent fault information can be displayed by a remote display terminal or can be displayed locally.
Specifically, determining whether the target LED box unit is faulty according to the display data acquired by the redisplay portal includes:
the display data acquired by the redisplay network interface is output to a local redisplay display end through a video output interface;
if the fault is detected, framing an image according to the position of the target LED box body unit with the fault;
and the image framing result is locally displayed back to the display end through the output value of the video output interface so as to display the position of the failed target LED box body unit in a differentiation manner.
The position of the target LED box unit can be determined according to the positions of all the redisplay net ports in the whole LED box, so that the position information can be obtained. If the redisplay net port is the fourth of the 10 redisplay net ports, the target LED box unit corresponding to the redisplay net port is the fourth LED box unit of the whole LED box in the 10 LED box units.
The image framing can be performed by combining and splicing the display data received by the redisplay net ports to form a frame of image, and the display data of a row of LED box units corresponding to the redisplay net ports can not be improved in the process of splicing the image by the redisplay net ports which do not receive the display data, so that the faults existing in the LED box bodies can be directly displayed.
In addition, in the process of image framing, each target LED box body unit can be framed at the position of the target LED box body unit on the LED box body, so that the position of the fault can be obtained more intuitively. After framing is finished, the display end can be locally displayed through the output value of the video output interface so as to display the position of the target LED box body unit with the fault in a differentiated mode. The local display end can be an intelligent terminal connected with the LED box body, such as a computer, a mobile phone and the like directly connected with the LED box body.
On the basis of the above scheme, optionally, determining whether the target LED box unit is faulty according to the display data acquired by the redisplay portal, includes:
sending the display data acquired by the echoing network port to a remote display end through a management network port;
if the fault is detected, framing an image according to the position of the target LED box body unit with the fault;
and coding and compressing the image framing result, and sending the processed network data to a remote display end through a management network port so as to enable the remote display end to display the position of the failed target LED box body unit in a differentiation manner.
The image framing result can be processed in a coding compression mode to obtain video stream data, and the video stream data is packaged and sent to the management network port, so that the management network port transmits a packaged file of the video stream data to a remote display end through a network for decoding and displaying.
The LED display screen has the advantages that whether the LED display screen has faults or not can be displayed on the remote display end, and convenience is brought to fault maintenance; the far-end echo display is displayed, because the far end is transmitted through a network port, the video data is large, and the video is compressed by a coding compression module and then transmitted to a far-end computer through a network for display.
On the basis of the technical schemes, image framing is carried out according to the position of the target LED box body unit with faults, and the method comprises the following steps:
the echoing network port acquires the display position information in the display data and all the predetermined display positions, determines the fault position information of the display data which is not acquired,
and framing the image according to the display position information and the fault position information.
Each echoing network port can normally display in the framing process according to the received position information of the display data, and the position information of the display data corresponding to the echoing network port cannot be read if the echoing network port of the display data cannot be acquired, so that black and white display or direct display as a fault can be realized in the framing process. Therefore, in the process of framing again, the fault position information and the display position information can be treated in a differentiation mode, and a framing result of the position with the fault in a protruding mode is obtained.
According to the technical scheme provided by the embodiment of the application, display data returned by the target LED box body unit corresponding to the echoing net port are obtained through the echoing net port; the display data is sent to the target LED box body unit by the original network port; the target LED box body unit is at least one display unit of the LED box body; determining whether the target LED box body unit fails according to display data acquired by the echoing network port; if yes, sending out fault information. The technical scheme that this application provided can realize having the purpose that whether trouble exists to LED box unit and carry out accuracy monitoring.
Fig. 4 is a flowchart of a display control method of an LED screen according to an embodiment of the present application. On the basis of the technical scheme, the technical scheme is further optimized, and specifically optimized as follows: the method further comprises the following steps: sending heartbeat data packets to each target LED box body unit through the original network port; the heartbeat package comprises identity information of each target LED box body unit; receiving a heartbeat reply packet returned by each target LED box body unit aiming at the heartbeat data packet through the original network port; and determining the target LED box body unit with the fault in each target LED box body unit according to the identity information contained in the heartbeat reply packet.
As shown in fig. 4, the method includes:
s410, sending heartbeat data packets to each target LED box body unit through the original network port; the heartbeat package comprises identity information of each target LED box body unit.
It is understood that the original network port may send the heartbeat packet once every fixed time duration. The heartbeat data packet may be sent by the LED controller for heartbeat interaction with each target LED box unit. Since one original network port can be connected with a plurality of LED box units in series, the ID of each LED box unit can be included in the heartbeat data packet, so that the heartbeat data packet aiming at each LED box unit can be ensured to be correctly responded.
And S420, receiving a heartbeat reply packet returned by each target LED box unit aiming at the heartbeat data packet through the original network port.
In this scheme, after the original network port sends the heartbeat data packet, the original network port receives the heartbeat reply packet. The received heartbeat reply packet can be returned by each target LED box unit aiming at the heartbeat data packet.
And S430, determining the target LED box body unit with the fault in each target LED box body unit according to the identity information contained in the heartbeat reply packet.
Whether the failed target LED box unit exists can be determined according to the identity information contained in each heartbeat reply packet, namely the ID of each target LED box unit.
Specifically, if the position of the fault box needs to be accurately positioned and displayed, the LED box unit can support an interactive command besides receiving LED video data, can respond to a specific network PING packet, specifically, an LED sending network port sends a specific roll calling packet periodically (1 second), the box unit sends a response packet (one ID for each box unit) with an ID to the network port in the direction of the LED data flow in response, and when the response packet is sent to the LED sending network port, the LED sending network port periodically (once calculated in 10 seconds) calculates the ID number N of the response packetpAnd the number N of the configured boxesxIn contrast, if the same, then normal, if less than the number of the configured boxes, then at Np+1The box body is connected with the fault, and at the moment, the specific fault position can be accurately displayed on the fault display screen, so that the maintenance personnel can be further facilitated.
Fig. 5 is a schematic structural diagram of a display control device of an LED screen according to an embodiment of the present application. As shown in fig. 5, the display control device of the LED panel includes:
the display data read-back module 510 is configured to obtain, through a redisplay net port, display data returned by a target LED box unit corresponding to the redisplay net port; the display data is sent to the target LED box body unit by the original network port; the target LED box body unit is at least one display unit of the LED box body;
and a fault judgment module 520, configured to determine whether the target LED box unit is faulty according to the display data acquired by the redisplay portal.
The product can execute the method provided by the embodiment of the application, and has the corresponding functional modules and beneficial effects of the execution method.
Embodiments of the present application also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a method for controlling a display of an LED screen, the method including:
acquiring display data returned by a target LED box body unit corresponding to a echoing network port through the echoing network port; the display data is sent to the target LED box body unit by the original network port; the target LED box body unit is at least one display unit of the LED box body;
and determining whether the target LED box body unit fails according to the display data acquired by the echoing network port.
Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in the computer system in which the program is executed, or may be located in a different second computer system connected to the computer system through a network (such as the internet). The second computer system may provide the program instructions to the computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations, such as in different computer systems that are connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium provided in the embodiments of the present application contains computer-executable instructions, and the computer-executable instructions are not limited to the display control operation of the LED screen described above, and may also perform related operations in the display control method of the LED screen provided in any embodiment of the present application.
Fig. 6 is a schematic structural diagram of a display control system of an LED screen according to an embodiment of the present application. As shown in fig. 6, the display control system of the LED screen includes:
an LED controller 610, an LED box body unit 620, an original net port 630 and a display-back net port 640;
the LED controller 610 is connected with the original net port 630 and the reproduction net port 640, the original net port 630 is connected with an LED box unit 620, and the tail end of the LED box unit 620 is connected with the reproduction net port 640;
the original network port 630 is configured to send display data to the LED box unit 620;
the echoing network port 640 is configured to obtain display data returned by the LED box unit 620 corresponding to the echoing network port 640;
the LED controller 610 is configured to determine whether the LED box unit 620 fails according to the display data acquired by the display return network interface 640.
Further, the system further comprises: a management portal 650 and a remote display 660;
the management network port 650 is connected to the LED controller 610, and is configured to send fault information to a remote display end 660 through a network;
the remote display end 660 is connected to the management network port 650 through a network, and is configured to receive the fault information and perform differential display on the position of the faulty LED box unit 620.
Fig. 7 is a schematic structural diagram of an LED box unit provided in an embodiment of the present application. As shown in fig. 7, the LED box unit includes: the device comprises a signal receiving unit, a signal processing unit and a signal forwarding unit.
Fig. 8 is a schematic structural diagram of another display control system of an LED screen according to an embodiment of the present application. As shown in fig. 8, the LED controller converts a received video signal (HDMI DVI DP) into a network signal that can be recognized by the LED box unit, generally, a single network port of the LED controller corresponds to a group of LED box units, the last unit is not connected back to the controller network port under the normal service display condition, but when a loop backup is needed, two network ports using the controller correspond to a string of box units, the network line connection of the LED controller and the box unit in the upper drawing is the same, but the two network ports both output LED display data, and the LED controller in the industry does not see the application of dual network ports for display back at present.
Fig. 9 is a schematic information flow diagram of a display control system of an LED screen according to an embodiment of the present application. As shown in fig. 9, the LED controller can implement one-way LED screen playback application by using two network ports, specifically, one of the two network ports is used for sending LED data, and the other is used for receiving LED data, an LED box unit is connected in series between the two network ports, the sending network port sends data to the first LED box unit, the LED box unit automatically obtains the data needed by itself from the data stream according to the configuration coordinate data information, and then transmits the data to the next level without changing, and finally achieves the playback receiving network port; if the LED box body unit fails, the LED data information cannot be received at the redisplay network port, the LED receiving module reports the signal loss warning information, the data to the corresponding LED screen in the image framing module is displayed as black, and meanwhile, the prompt of the LED screen failure is displayed on the black screen.
According to the invention, the return display problem under the condition of not adding additional equipment is solved by returning the LED screen signal sent by the LED controller from the LED box body unit; meanwhile, the real-time warning requirement when the LED screen fails can be met.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims (10)

1. A display control method of an LED screen is characterized by comprising the following steps:
acquiring display data returned by a target LED box body unit corresponding to a echoing network port through the echoing network port; the display data is sent to the target LED box body unit by the original network port; the target LED box body unit is at least one display unit of the LED box body;
and determining whether the target LED box body unit fails according to the display data acquired by the echoing network port.
2. The method according to claim 1, wherein the cascaded LED box units between the original net port and the echo net port form a data display loop; the cascaded LED box units are a row of LED box units in the LED box;
correspondingly, the process of sending display data to the target LED box body unit through the original network port comprises the following steps:
the original network port sends display data to the first-stage LED box body unit, and the first-stage LED box body unit determines the display data of the first-stage LED box body unit from the display data according to the configuration coordinate data information; and transmitted to the next stage;
and the next-stage LED box body unit determines the display data of the LED box body unit from the display data according to the configuration coordinate data information, and continuously transmits the display data until the display data are transmitted to the last-stage LED box body unit, and the display data are transmitted to the redisplay net port by the last-stage LED box body unit.
3. The method of claim 1, wherein determining whether the target LED box unit is faulty according to the display data obtained by the echoing portal comprises:
if the echoing network port obtains display data, determining that the target LED box body unit has no fault;
and if the display data is not acquired by the echoing network port, determining that the target LED box body unit has a fault.
4. The method of claim 1, wherein determining whether the target LED box unit is faulty according to the display data obtained by the echoing portal comprises:
the display data acquired by the redisplay network interface is output to a local redisplay display end through a video output interface;
if the fault is detected, framing an image according to the position of the target LED box body unit with the fault;
and the image framing result is locally displayed back to the display end through the output value of the video output interface so as to display the position of the failed target LED box body unit in a differentiation manner.
5. The method of claim 1, wherein determining whether the target LED box unit is faulty according to the display data obtained by the echoing portal comprises:
sending the display data acquired by the echoing network port to a remote display end through a management network port;
if the fault is detected, framing an image according to the position of the target LED box body unit with the fault;
and coding and compressing the image framing result, and sending the processed network data to a remote display end through a management network port so as to enable the remote display end to display the position of the failed target LED box body unit in a differentiation manner.
6. The method of claim 4 or 5, wherein framing the image according to the location of the failed target LED box unit comprises:
the echoing network port acquires the display position information in the display data and all the predetermined display positions, determines the fault position information of the display data which is not acquired,
and framing the image according to the display position information and the fault position information.
7. The method of claim 1, further comprising:
sending heartbeat data packets to each target LED box body unit through the original network port; the heartbeat package comprises identity information of each target LED box body unit;
receiving a heartbeat reply packet returned by each target LED box body unit aiming at the heartbeat data packet through the original network port;
and determining the target LED box body unit with the fault in each target LED box body unit according to the identity information contained in the heartbeat reply packet.
8. A display control device of an LED screen is characterized by comprising:
the display data read-back module is used for acquiring display data returned by the target LED box body unit corresponding to the display-back net port through the display-back net port; the display data is sent to the target LED box body unit by the original network port; the target LED box body unit is at least one display unit of the LED box body;
and the fault judgment module is used for determining whether the target LED box body unit has a fault according to the display data acquired by the echoing network port.
9. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when executed by a processor, implements the display control method of the LED screen according to any one of claims 1 to 7.
10. A display control system of an LED screen is characterized by comprising: the system comprises an LED controller, an LED box body unit, an original net port and a redisplay net port;
the LED controller is connected with the original net port and the redisplay net port, the original net port is connected with an LED box body unit, and the tail end of the LED box body unit is connected with the redisplay net port;
the original network port is used for sending display data to the LED box body unit;
the redisplay net port is used for acquiring display data returned by the LED box body unit corresponding to the redisplay net port;
and the LED controller is used for determining whether the LED box body unit fails or not according to the display data acquired by the echoing network port.
CN202010857835.4A 2020-08-24 2020-08-24 Display control method, device, medium and system of LED screen Pending CN112331133A (en)

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