A method for quickly selecting and operating an LED display screen and an LED display screen display method

Abstract

The present invention relates to the technical field of LED display screens, and specifically discloses a method for quickly selecting and operating an LED display screen and a method for displaying an LED display screen, the method comprising: obtaining the box information of all boxes in the LED display screen, generating and saving box structure data according to a preset data composition strategy and box information; the box information at least includes a box type and selected flag information; obtaining a box type selection instruction, setting the selected flag information in the corresponding box information to a selected state according to the box structure data and the box type in the box type selection instruction, and updating the corresponding box information in the box structure data; sending the selected flag information in the box structure data to the LED display screen. The method for quickly selecting and operating an LED display screen and the method for displaying an LED display screen of the present invention realize the display function of files to be displayed after a box in the LED display screen is quickly selected, and the entire operation process is fast and convenient, and has good operability.

Description

Technical Field

[0001] The invention relates to the technical field of LED display screen correction, and in particular to a method for quickly selecting and operating an LED display screen and an LED display screen display method. Background Art

[0002] In actual application scenarios, LED display screens are composed of multiple cabinets. When the LED screen is working, each cabinet displays a part of the entire image, and the images displayed by multiple cabinets are combined into a complete picture. Therefore, after the video data is transmitted to the cabinet of the LED display screen, each cabinet needs to intercept its own part for display to ensure the normal display of the entire LED display screen.

[0003] In general, when debugging or displaying an LED display, it is usually only necessary to select a single or entire cabinet for related operations to meet the needs. However, with the development of complex application scenarios, more and more cases require the support of operating any combination of multiple cabinets. In order to meet this demand, the most common practice is to set the routing method based on the original operation of a single cabinet, and select the required multiple cabinets one by one through the cabinet cycle method. This simple cycle method not only increases the operation time exponentially, but also has extremely poor operability, and users cannot quickly save or modify the selection of multiple cabinet combinations. Therefore, people in this field are in urgent need of finding a new technical solution to solve the above problems. Summary of the invention

[0004] In view of the technical problems in the prior art, the present invention provides a method for quickly selecting and operating an LED display screen and an LED display screen display method.

[0005] The present invention discloses a method for quickly selecting and operating an LED display screen, comprising the steps of:

[0006] Obtain the cabinet information of all cabinets in the LED display screen, generate and save cabinet structure data according to the preset data composition strategy and cabinet information; the cabinet information at least includes cabinet type and selected flag information;

[0007] Obtain a cabinet type selection instruction, set the selected flag information in the corresponding cabinet information to a selected state according to the cabinet structure data and the cabinet type in the cabinet type selection instruction, and update the corresponding cabinet information in the cabinet structure data;

[0008] Send the selected flag information in the cabinet structure data to the LED display screen.

[0009] Furthermore, the method also includes:

[0010] Get the cabinet type addition instruction, modify or set the cabinet type in the corresponding cabinet information according to the cabinet type in the cabinet type addition instruction and the selected cabinet, and update the cabinet information of the corresponding cabinet in the cabinet structure data.

[0011] Furthermore, in the cabinet information of each cabinet, there is only one cabinet type.

[0012] Further, according to the cabinet type in the cabinet type selection instruction, the selected flag information in the corresponding cabinet information is set to a selected state, including:

[0013] Traverse the cabinet information in the cabinet structure data to determine the cabinet information that is consistent with the cabinet type in the cabinet type selection instruction;

[0014] Set the selected flag information in the cabinet information to the selected state;

[0015] The selected flag information in the cabinet information that is inconsistent with the cabinet type in the cabinet type selection instruction is set to an unselected state.

[0016] Furthermore, the method also includes:

[0017] Generate one-to-one corresponding virtual modules according to the cabinets in the LED display screen;

[0018] The display color of each virtual module is set according to the cabinet type, and the virtual module is displayed in a preset display window according to the installation position of the cabinet in the LED display screen.

[0019] Furthermore, the method also includes:

[0020] Set the existing cabinet types as optional lists and display them;

[0021] Get the cabinet type selection command in the optional list;

[0022] The selected virtual module is highlighted in the display window; in the cabinet information corresponding to the selected virtual module, the selected flag bit information is in the selected state.

[0023] Furthermore, the cabinet information also includes one or more of the sending card serial number, the network port serial number, the cabinet serial number, the offset coordinate X, the offset coordinate Y, the receiving card width, the receiving card height, and the sending card offset coordinate.

[0024] The present invention also discloses a LED display screen display method, comprising the steps of:

[0025] Obtaining selected flag information and the file to be displayed; the selected flag information is generated according to the above-mentioned method for quickly selecting and operating the LED display screen;

[0026] All cabinets save the selected flag information and the files to be displayed;

[0027] Each box displays or does not display the corresponding file to be displayed according to the state of the corresponding selected flag information.

[0028] The present invention also includes a device for quickly selecting and operating an LED display screen, the device including a data composition module, a cabinet selection module and an information sending module, wherein:

[0029] The data composition module is connected to the cabinet selection module. The data composition module is used to obtain cabinet information of all cabinets in the LED display screen, generate cabinet structure data according to the preset data composition strategy and cabinet information, and save it; the cabinet information at least includes cabinet type and selected flag information;

[0030] The cabinet selection module is connected to the data composition module and the information sending module. The cabinet selection module is used to obtain the cabinet type selection instruction, set the selected flag information in the corresponding cabinet information to the selected state according to the cabinet structure data and the cabinet type in the cabinet type selection instruction, and update the corresponding cabinet information in the cabinet structure data;

[0031] The information sending module is connected to the cabinet selection module, and is used to send the selected flag information in the cabinet structure data to the LED display screen.

[0032] The present invention also includes an LED display screen display system, including the above device and an LED display screen, wherein the device is communicatively connected to the LED display screen; wherein:

[0033] The device is also used to send files to be displayed to the LED display screen;

[0034] The LED display screen is used to obtain the selected flag information and the file to be displayed issued by the device; and all cabinets in the LED display screen save the selected flag information and the file to be displayed; and each cabinet displays or does not display the corresponding file to be displayed according to the status of its corresponding selected flag information.

[0035] The method for quickly selecting and operating an LED display screen and the method for displaying an LED display screen of the present invention generate and save cabinet structure data with cabinet types and selected flag information. When selecting a cabinet, it is only necessary to set the selected flag information in the corresponding cabinet information to a selected state according to the cabinet type in the cabinet type selection instruction, thereby realizing a quick selection operation of a cabinet under any cabinet type in the LED display screen. In addition, after the selected flag information in the cabinet structure data is sent to the LED display screen, all cabinets in the LED display screen save the selected flag information, and then each cabinet displays or does not display the corresponding file to be displayed according to the state of its corresponding selected flag information, thereby realizing a display function of the file to be displayed after the cabinet is quickly selected in the LED display screen. The entire operation process is fast and convenient with good operability. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 A flowchart of the method for quickly selecting and operating an LED display screen according to an embodiment of the present invention;

[0038] Figure 2 Schematic diagram of the operation interface for quickly selecting the method for operating the LED display screen according to an embodiment of the present invention (I);

[0039] Figure 3 Schematic diagram of the operation interface for quickly selecting the method for operating the LED display screen according to an embodiment of the present invention (II);

[0040] Figure 4 Schematic diagram of the operation interface for quickly selecting the method for operating the LED display screen according to an embodiment of the present invention (III);

[0041] Figure 5 Schematic diagram of the operation interface of the method for quickly selecting an operation LED display screen according to an embodiment of the present invention (IV);

[0042] Figure 6 Schematic diagram of the operation interface for quickly selecting the method for operating the LED display screen according to an embodiment of the present invention (V);

[0043] Figure 7 A flowchart of the steps of the LED display screen display method according to an embodiment of the present invention;

[0044] Figure 8FIG1 is a structural diagram of a device for quickly selecting and operating an LED display screen according to an embodiment of the present invention;

[0045] Fig. 9 FIG2 is a structural diagram of a device for quickly selecting and operating an LED display screen according to an embodiment of the present invention;

[0046] Fig.10 FIG. 4 is a structural diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0047] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0048] A method for quickly selecting and operating an LED display screen according to an embodiment of the present invention is as follows: Figure 1 As shown, the steps include:

[0049] Step S101: Obtain cabinet information of all cabinets in the LED display screen, generate cabinet structure data according to a preset data composition strategy and cabinet information, and save it.

[0050] In this step of the embodiment of the present invention, the cabinet information includes at least the cabinet type and the selected flag information. The cabinet type can be understood as the naming of the cabinet combination, such as "cabinet type one", "cabinet type two", "first cabinet type", "second cabinet type", "first cabinet combination", "second cabinet combination", etc., which can be set according to the specific implementation situation, and the naming of each cabinet type can be distinguished. Each cabinet type in the embodiment of the present invention contains at least one cabinet, and each cabinet belongs to at least one cabinet type. Preferably, in order to avoid abnormal cabinet selection, the cabinet information of each cabinet has one and only one cabinet type. The selected flag information is information that reflects whether the corresponding cabinet is selected, and is usually represented by "1" and "0" to indicate "selected" and "unselected" respectively.

[0051] In this embodiment, the cabinet information also includes the sending card serial number, network port serial number, cabinet serial number, offset coordinate X, offset coordinate Y, receiving card width, receiving card height, sending card offset coordinate, etc. The cabinet structure data content generated according to the cabinet information is not limited in this embodiment, for example:

[0052] int sendIndex; / / sending card serial number

[0053] int portIndex; / / Network port number

[0054] int rcvIndex; / / Box serial number

[0055] int cabinetType; / / cabinet type

[0056] int offsetX; / / Offset coordinate X

[0057] int offsetY; / / Offset coordinate Y

[0058] int width; / / receiving card width

[0059] int height; / / receiving card height

[0060] int send()offsetx; / / sending card offset coordinate x

[0061] int send()offsety; / / sending card offset coordinate y

[0062] bool bSelected; / / Selected flag information

[0063] Step S102: obtaining a cabinet type selection instruction, setting the selected flag information in the corresponding cabinet information to a selected state according to the cabinet structure data and the cabinet type in the cabinet type selection instruction, and updating the corresponding cabinet information in the cabinet structure data.

[0064] The cabinet type selection instruction includes the cabinet type to be selected. After the cabinet type selection instruction is obtained, the selected flag information in the corresponding cabinet information is set to the selected state according to the cabinet structure data and the cabinet type in the cabinet type selection instruction. Since this step changes the selected flag information in the cabinet information, it is necessary to update the cabinet information in the cabinet structure data after the selected flag information is set.

[0065] Step S103: Send the selected flag information in the box structure data to the LED display screen.

[0066] After completing the cabinet type selection, the selected flag information in the cabinet structure data is sent to the LED display screen, and the LED display screen determines whether it is selected based on the selected flag information. The sending of the selected flag information can be realized by the host computer through broadcasting.

[0067] Specifically, the method of the embodiment of the present invention further includes:

[0068] Step S104: obtaining a cabinet type addition instruction, modifying or setting the cabinet type in the corresponding cabinet information according to the cabinet type in the cabinet type addition instruction and the selected cabinet, and updating the cabinet information of the corresponding cabinet in the cabinet structure data.

[0069] This step is used to add a cabinet type. The cabinet type addition instruction includes the cabinet type to be added and the selected cabinet. If some cabinets have been set with a cabinet type before, the "cabinet type" in the cabinet information of the corresponding cabinet will be modified to the newly added "cabinet type" according to the cabinet type addition instruction. If some cabinets do not belong to any cabinet type before, the newly added "cabinet type" will be set to the "cabinet type" in the cabinet information corresponding to the cabinet according to the cabinet type addition instruction.

[0070] After completing the addition of the cabinet type, the original cabinet structure data needs to be updated.

[0071] In step S102 of the embodiment of the present invention, setting the selected flag information in the corresponding cabinet information to a selected state according to the cabinet type in the cabinet type selection instruction specifically includes:

[0072] Step S1021: traverse the cabinet information in the cabinet structure data, and determine the cabinet information that is consistent with the cabinet type in the cabinet type selection instruction.

[0073] It should be emphasized that the "traversal" in this step is a process for the cabinet structure data, which is completely different from what is said in the background technology: "setting the routing method based on the original operation of a single cabinet, and selecting the required multiple cabinets one by one through the cabinet cycle method." This embodiment is a calculation process for the generated cabinet structure data. The executor of this step is the "host computer", not the calculation process of the relevant data by the "cabinet" in the background technology. Therefore, compared with the background technology, the method of the embodiment of the present invention can save more operation time.

[0074] Through this step, the cabinet information that is consistent with the cabinet type in the cabinet type selection instruction is selected, and then the next step is executed.

[0075] Step S1022: setting the selected flag information in the cabinet information to a selected state.

[0076] Step S1023: setting the selected flag information in the cabinet information that is inconsistent with the cabinet type in the cabinet type selection instruction to an unselected state.

[0077] In order to obtain an accurate selected cabinet each time a cabinet type selection instruction is executed, the embodiment of the present invention can set the selected flag information in the cabinet information with consistent cabinet type to a selected state through step S1022 and step S1023, and set the selected flag information in the cabinet information inconsistent with the cabinet type to an unselected state. Alternatively, after each cabinet type selection instruction is obtained, the selected flag information in all cabinet information is first set to an unselected state, and then the cabinet type selection instruction is executed to set the selected flag information in the cabinet information with consistent cabinet type to a selected state, thereby ensuring that only the selected flag information in the cabinet information consistent with the cabinet type is in a selected state.

[0078] Specifically, the method of the embodiment of the present invention further includes:

[0079] Step S105: Generate one-to-one corresponding virtual modules according to the cabinets in the LED display screen.

[0080] Step S106: setting the display color of each virtual module according to the cabinet type, and displaying the virtual module in a preset display window according to the installation position of the cabinet in the LED display screen.

[0081] like Figure 2 As shown in FIG. 1 , an operation interface is set according to the method. 1-1-1, 1-2-1 and 1-3-1 are three virtual modules, which are generated corresponding to the LED display screen with three cabinets spliced ​​horizontally. Assuming that the cabinet type of cabinet 1-1-1 is "cabinet type 1", and the cabinet types of cabinets 1-2-1 and 1-3-1 are "cabinet type 2", their corresponding colors can be set to "yellow" and "purple", that is, Figure 3 shown.

[0082] Specifically, the method of the embodiment of the present invention further includes:

[0083] Step S107: Set the existing cabinet types as a selectable list and display them.

[0084] like Figure 3 As shown, the existing cabinet types are "cabinet type one" and "cabinet type two", which are displayed in a list.

[0085] Step S108: Obtain a cabinet type selection instruction from the optional list.

[0086] The cabinet type selection instruction can be obtained by clicking the mouse or by touching the touch screen, and the specific method is not limited. After selecting the corresponding cabinet type in the optional list, the cabinet type selection instruction is generated.

[0087] Step S109: highlighting the selected virtual module in the display window; in the cabinet information corresponding to the selected virtual module, the selected flag information is in a selected state.

[0088] After executing the cabinet type selection instruction through the above method, the cabinet information with the selected flag information can be obtained, and the corresponding virtual module is highlighted to indicate that this part of the module has been selected. Figure 3 and Figure 4 As shown in the figure, after selecting "Box Type 1", a "√" is displayed on the virtual module 1-1-1 to indicate that box 1-1-1 is selected, while the two virtual modules 1-2-1 and 1-3-1 are not selected and are not highlighted. Figure 5 and Figure 6 As shown, after selecting "cabinet type 2", "√" is displayed on the two virtual modules 1-2-1 and 1-3-1 to indicate that cabinets 1-2-1 and 1-3-1 are selected, while the virtual module 1-1-1 is not selected, and the "√" displayed in the previous link is no longer displayed after the cabinet type is selected again. Those skilled in the art may also choose other highlighting methods, which will not be listed one by one in this embodiment.

[0089] The quick selection of the cabinet in the embodiment of the present invention can usually be used for cabinet display in a specific display area or for debugging a screen area with abnormal display. For the display of a specific area, the present invention also includes an embodiment of a LED display screen display method, such as Figure 7 As shown, the steps include:

[0090] Step S201: Obtain selected flag information and files to be displayed.

[0091] The selected flag information in this step is generated according to the method for quickly selecting and operating the LED display screen in the above-mentioned embodiment. The file to be displayed is the image file to be displayed by the LED display screen.

[0092] Step S202: All cabinets save the selected flag information and the file to be displayed.

[0093] Step S203: Each box displays or does not display the corresponding file to be displayed according to the state of the corresponding selected flag information.

[0094] If the selected flag information corresponding to the box is in the selected state, the content of the file to be displayed corresponding to the box is displayed; if the selected flag information corresponding to the box is in the unselected state, it is not displayed.

[0095] Specifically, after the selected flag information is sent to the LED display screen, each cabinet saves the selected flag information, and then parses it according to a preset data parsing protocol such as 0x72 frame, and then performs a corresponding selection operation.

[0096] The embodiment of the present invention also includes a device for quickly selecting and operating an LED display screen, such as Figure 8 As shown, the device includes a data composition module 101, a cabinet selection module 102 and an information sending module 103, wherein:

[0097] The data composition module 101 is connected to the cabinet selection module 102. The data composition module 101 is used to obtain cabinet information of all cabinets in the LED display screen, generate cabinet structure data according to the preset data composition strategy and cabinet information, and save it; the cabinet information at least includes cabinet type and selected flag information;

[0098] The cabinet selection module 102 is connected to the data composition module 101 and the information sending module 103. The cabinet selection module 102 is used to obtain a cabinet type selection instruction, set the selected flag information in the corresponding cabinet information to a selected state according to the cabinet structure data and the cabinet type in the cabinet type selection instruction, and update the corresponding cabinet information in the cabinet structure data;

[0099] The information sending module 103 is connected to the cabinet selection module 102, and is used to send the selected flag information in the cabinet structure data to the LED display screen.

[0100] The implementation process of the above device can refer to the explanation of the method in the above embodiment, which will not be repeated here.

[0101] Specifically, Fig. 9 As shown, the device also includes a cabinet type adding module 104, which is connected to the data composition module 101. The cabinet type adding module 104 is used to obtain a cabinet type adding instruction, modify or set the cabinet type in the corresponding cabinet information according to the cabinet type in the cabinet type adding instruction and the selected cabinet, and update the cabinet information of the corresponding cabinet in the cabinet structure data.

[0102] The embodiment of the present invention further includes an electronic device 300, such as Fig.10As shown, it includes: a memory 301 for storing a computer program; a processor 302 for implementing the method for quickly selecting and operating an LED display screen in the above embodiment when executing the computer program. The computer program includes a computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form. The memory can at least include: any entity or device that can carry the computer program code to the camera device / terminal device, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), such as a USB flash drive, a mobile hard disk, a magnetic disk or an optical disk.

[0103] The embodiment of the present invention also includes an LED display screen display system, including the device of the above embodiment, and also including an LED display screen, wherein the device is communicatively connected with the LED display screen; wherein:

[0104] The device is also used to send files to be displayed to the LED display screen;

[0105] The LED display screen is used to obtain the selected flag information and the file to be displayed issued by the device; and all cabinets in the LED display screen save the selected flag information and the file to be displayed; and each cabinet displays or does not display the corresponding file to be displayed according to the status of its corresponding selected flag information.

[0106] The communication method between the device of this embodiment and the LED display screen is not specifically limited. For example, USB communication is used. The device packages the files to be displayed and sends them to the box of the LED display screen via USB.

[0107] The method for quickly selecting and operating an LED display screen and the method for displaying an LED display screen in the embodiments of the present invention generate and save cabinet structure data with cabinet types and selected flag information. When selecting a cabinet, it is only necessary to set the selected flag information in the corresponding cabinet information to a selected state according to the cabinet type in the cabinet type selection instruction, thereby realizing a quick selection operation of a cabinet under any cabinet type in the LED display screen. In addition, after the selected flag information in the cabinet structure data is sent to the LED display screen, all cabinets in the LED display screen save the selected flag information, and then each cabinet displays or does not display the corresponding file to be displayed according to the state of its corresponding selected flag information, thereby realizing the display function of the file to be displayed after the cabinet is quickly selected in the LED display screen. The entire operation process is fast and convenient, and has good operability.

[0108] The present invention is further described above with the aid of specific embodiments. However, it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in the field after reading this specification are all within the scope of protection of the present invention.

Claims

1. A method for quickly selecting and operating an LED display screen, characterized in that: Includes steps: Obtaining the cabinet information of all cabinets in the LED display screen, generating and saving cabinet structure data according to a preset data composition strategy and the cabinet information; the cabinet information at least includes cabinet type and selected flag information; Obtain a cabinet type selection instruction, set the selected flag information in the corresponding cabinet information to a selected state according to the cabinet structure data and the cabinet type in the cabinet type selection instruction, and update the corresponding cabinet information in the cabinet structure data; The selected flag information in the box structure data is sent to the LED display screen.

2. A method for quickly selecting and operating an LED display screen as claimed in claim 1, characterized in that: Also includes: A cabinet type addition instruction is obtained, and the cabinet type in the corresponding cabinet information is modified or set according to the cabinet type in the cabinet type addition instruction and the selected cabinet, and the cabinet information of the corresponding cabinet in the cabinet structure data is updated.

3. A method for quickly selecting and operating an LED display screen as claimed in claim 1, characterized in that: In the cabinet information of each cabinet, there is only one cabinet type.

4. A method for quickly selecting and operating an LED display screen as claimed in claim 1, characterized in that: The step of setting the selected flag information in the corresponding cabinet information to a selected state according to the cabinet type in the cabinet type selection instruction includes: Traversing the cabinet information in the cabinet structure data, and determining cabinet information consistent with the cabinet type in the cabinet type selection instruction; Setting the selected flag information in the cabinet information to a selected state; The selected flag information in the cabinet information that is inconsistent with the cabinet type in the cabinet type selection instruction is set to an unselected state.

5. A method for quickly selecting and operating an LED display screen as claimed in claim 1, characterized in that: Also includes: Generate one-to-one corresponding virtual modules according to the cabinets in the LED display screen; The display color of each virtual module is set according to the cabinet type, and the virtual module is displayed in a preset display window according to the installation position of the cabinet in the LED display screen.

6. A method for quickly selecting and operating an LED display screen as claimed in claim 5, characterized in that: Also includes: Set the existing cabinet types as optional lists and display them; Obtain the cabinet type selection instruction in the optional list; highlighting the selected virtual module in the display window; In the cabinet information corresponding to the selected virtual module, the selected flag bit information is in a selected state.

7. A method for quickly selecting and operating an LED display screen as claimed in claim 1, characterized in that: The cabinet information also includes one or more of the sending card serial number, network port serial number, cabinet serial number, offset coordinate X, offset coordinate Y, receiving card width, receiving card height, and sending card offset coordinate.

8. A method for displaying an LED display screen, characterized in that: Includes steps: Obtaining selected flag information and a file to be displayed; the selected flag information is generated by the method according to any one of claims 1 to 7; All cabinets save the selected flag information and the file to be displayed; Each box displays or does not display the corresponding file to be displayed according to the state of the corresponding selected flag information.

9. A device for quickly selecting and operating an LED display screen, characterized in that: The device includes a data composition module, a box selection module and an information sending module, wherein: The data composition module is connected to the cabinet selection module, and is used to obtain cabinet information of all cabinets in the LED display screen, generate cabinet structure data according to a preset data composition strategy and the cabinet information, and save the data; the cabinet information at least includes cabinet type and selected flag information; The cabinet selection module is connected to the data composition module and the information sending module, and is used to obtain a cabinet type selection instruction, set the selected flag information in the corresponding cabinet information to a selected state according to the cabinet structure data and the cabinet type in the cabinet type selection instruction, and update the corresponding cabinet information in the cabinet structure data; The information sending module is connected to the cabinet selection module, and is used to send the selected flag information in the cabinet structure data to the LED display screen.

10. An LED display screen display system, characterized in that: The device according to claim 9 further comprises an LED display screen, wherein the device is communicatively connected to the LED display screen; wherein: The device is also used to send the file to be displayed to the LED display screen; The LED display screen is used to obtain the selected flag information and the file to be displayed issued by the device; and all boxes in the LED display screen save the selected flag information and the file to be displayed; and each box displays or does not display the corresponding file to be displayed according to the state of its corresponding selected flag information.

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