WO2024065449A1 - Procédé d'affichage de partage de données et système d'affichage intelligent - Google Patents

Procédé d'affichage de partage de données et système d'affichage intelligent Download PDF

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Publication number
WO2024065449A1
WO2024065449A1 PCT/CN2022/122798 CN2022122798W WO2024065449A1 WO 2024065449 A1 WO2024065449 A1 WO 2024065449A1 CN 2022122798 W CN2022122798 W CN 2022122798W WO 2024065449 A1 WO2024065449 A1 WO 2024065449A1
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WIPO (PCT)
Prior art keywords
display device
data
display
handwriting
instruction
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PCT/CN2022/122798
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English (en)
Chinese (zh)
Inventor
张继哲
汪然
赵丽菲
张阳阳
Original Assignee
京东方科技集团股份有限公司
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Priority to PCT/CN2022/122798 priority Critical patent/WO2024065449A1/fr
Publication of WO2024065449A1 publication Critical patent/WO2024065449A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems

Definitions

  • the present disclosure relates to the technical field of data interaction, and in particular to a data sharing display method and an intelligent display system.
  • the present disclosure provides a data sharing display method and an intelligent display system, which are used to enable multiple display devices to share and display the same data, and use multiple display devices to provide users with a richer display experience.
  • an embodiment of the present disclosure provides an intelligent display system, including a first display device and a second display device; the first display device and the second display device are connected in communication;
  • the first display device includes a first display and a first processor, wherein the first processor is configured to execute: receiving a sharing instruction triggered by a user, determining first handwriting data corresponding to the sharing instruction, and sending the first handwriting data to a second display device; wherein the first handwriting data is handwriting data currently displayed by the first display device;
  • the second display device includes a second display and a second processor, and the second processor is configured to execute: receiving the first handwriting data and controlling the second display to display the first handwriting data.
  • an embodiment of the present disclosure provides a display device, including a display and a processor, wherein:
  • the display is used to display content
  • the processor is configured to perform:
  • Receive a sharing instruction triggered by a user determine first handwriting data corresponding to the sharing instruction, and send the first handwriting data to a second display device so that the second display device receives the first handwriting data and displays the first handwriting data; wherein the first handwriting data is the handwriting data currently displayed by the first display device.
  • an embodiment of the present disclosure provides a method for sharing and displaying data, the method comprising:
  • the first display device receives a sharing instruction triggered by a user, determines first handwriting data corresponding to the sharing instruction, and sends the first handwriting data to the second display device; wherein the first handwriting data is the handwriting data currently displayed by the first display device;
  • the second display device receives the first handwriting data and displays the first handwriting data.
  • an embodiment of the present disclosure provides a method for sharing and displaying data, the method comprising:
  • the first display device receives a sharing instruction triggered by a user, and determines first data corresponding to the sharing instruction, wherein the first data represents file data to be shared by the first display device;
  • the first display device sends the first data to a second display device; wherein the second display device and the first display device are connected to the same network;
  • the second display device displays the first data.
  • an embodiment of the present disclosure provides an intelligent display system, comprising a first display device and a second display device, wherein:
  • the first display device receives a sharing instruction triggered by a user, and determines first data corresponding to the sharing instruction, wherein the first data represents file data to be shared by the first display device;
  • the first display device sends the first data to a second display device; wherein the second display device and the first display device are connected to the same network;
  • the second display device displays the first data.
  • an embodiment of the present disclosure provides an intelligent display device, comprising a processor and a memory, wherein the memory is used to store programs executable by the processor, and the processor is used to read the programs in the memory and execute the steps of the method described in the third aspect or the fourth aspect above.
  • an embodiment of the present disclosure further provides a computer storage medium on which a computer program is stored, and when the program is executed by a processor, it is used to implement the steps of the method described in the third aspect or the fourth aspect above.
  • FIG1 is a specific implementation flow chart of a method for data sharing and display provided by an embodiment of the present disclosure
  • FIG2 is a schematic diagram of an intelligent display system provided by an embodiment of the present disclosure.
  • FIG3 is a flow chart of displaying data exchange provided by an embodiment of the present disclosure.
  • FIG4 is a detailed flow chart of a data exchange provided by an embodiment of the present disclosure.
  • FIG5 is a flow chart of displaying synchronization data provided by an embodiment of the present disclosure.
  • FIG6 is a detailed flow chart of data synchronization provided by an embodiment of the present disclosure.
  • FIG7 is a flowchart of a multi-device video synchronous playback method provided by an embodiment of the present disclosure
  • FIG8 is a flow chart of establishing a UDP connection between display devices provided by an embodiment of the present disclosure
  • FIG9 is a flow chart of establishing a UDP connection between display devices provided by an embodiment of the present disclosure.
  • 10A-10B are schematic diagrams of a displacement display of first data provided by an embodiment of the present disclosure.
  • 11A-11G are schematic diagrams of a display effect provided by an embodiment of the present disclosure.
  • FIG12A is a schematic diagram of a method of failing to display first data provided by an embodiment of the present disclosure
  • FIG12B is a schematic diagram of zooming and displaying first data provided by an embodiment of the present disclosure.
  • FIG13 is a flowchart of an execution of text file import provided by an embodiment of the present disclosure.
  • FIG14 is a schematic diagram of a display device provided by an embodiment of the present disclosure.
  • FIG15 is a flowchart of a method for implementing data sharing and display provided in an embodiment of the present disclosure
  • FIG. 16 is a schematic diagram of an intelligent display system provided in an embodiment of the present disclosure.
  • the term "and/or” describes the association relationship of associated objects, indicating that three relationships may exist.
  • a and/or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/" generally indicates that the associated objects before and after are in an "or” relationship.
  • the embodiments of the present disclosure provide a method for data sharing and display, in which a first display device and at least one second display device share first data, and the same data is displayed on different display devices, thereby utilizing multiple display devices to achieve multi-angle and all-round display effects, so that in a large conference room or large classroom, the same display content can be presented more clearly to users in various locations, thereby improving the user's viewing experience.
  • the display device in this embodiment refers to a large-size (generally more than 50 inches) intelligent interactive display device with a touch handwriting function.
  • a writing program such as an electronic whiteboard is installed on the intelligent interactive display device.
  • the user can use fingers, active pens or passive pens to write on the display device, and the writing handwriting is displayed in real time.
  • the display device in this embodiment may include a liquid crystal display (LCD), an organic light-emitting semiconductor (OLED), an electronic ink and other display modules, which can display the writing handwriting in real time.
  • the display device in this embodiment receives the writing trajectory data and the user's touch command through the configured touch component. This embodiment does not impose too many restrictions on how to specifically obtain the writing trajectory data.
  • the installation positions and installation angles of the multiple display devices (including the first display device and the second display device) in this embodiment can be determined according to the spatial layout of the installation site, and this embodiment does not impose too many restrictions on this.
  • the intelligent display system in this embodiment does not impose too many restrictions on the number of first display devices and second display devices.
  • the intelligent display system in this embodiment includes one or more first display devices and one or more second display devices, wherein the first display device and the second display device can be different display devices or the same display devices, and this embodiment does not impose too many restrictions on this.
  • the first display device in this disclosure uses an 86-inch screen with a resolution of 1920 ⁇ 1080, and one or more second display devices use a 63-inch screen with a resolution of 1200 ⁇ 900.
  • Different display devices in this embodiment may also be configured with disks of different sizes, memories of different sizes, etc. This disclosure does not impose too many restrictions on this.
  • Step 100 A first display device receives a sharing instruction triggered by a user, and determines first data corresponding to the sharing instruction, wherein the first data represents file data to be shared by the first display device;
  • the sharing instructions in this embodiment include any one or more of the following:
  • exchange instruction wherein the exchange instruction is used to instruct the first display device and the second display device to exchange data
  • the first data displayed on the first display device is sent to a second display device for display, and the second data displayed on the second display device is sent to the first display device for display, thereby realizing the exchange of data displayed on the two display devices.
  • the synchronization instruction includes a first synchronization instruction for text file synchronization and/or a second synchronization instruction for video file synchronization.
  • the text file represents data in text format
  • the video file represents data in video format.
  • the first data displayed on the first display device is synchronized and displayed on at least one second display device. If the user triggers the first synchronization instruction on the electronic whiteboard program on the first display device, the first data displayed on the current electronic whiteboard program is synchronized and displayed on the whiteboard program on at least one second display device.
  • a sharing instruction wherein the sharing instruction is used to instruct to share the first data to the at least one second display device.
  • the first data in this embodiment includes at least one of a text file, handwriting data, a video file, and an audio file.
  • this embodiment may determine different first data based on different sharing instructions, specifically including any one or more of the following methods:
  • the first display device receives a sharing instruction triggered by a user on an electronic whiteboard interface, and determines that the first data corresponding to the sharing instruction is a text file displayed on the electronic whiteboard interface;
  • the first data may be a text file displayed on the electronic whiteboard interface, wherein the text file may include handwriting data of a user, may include printed text, or may include any document, and this embodiment does not impose too many restrictions on this.
  • Mode b The first display device receives a sharing instruction triggered by a user in a video menu interface, and determines that the first data corresponding to the sharing instruction is a video file in the video menu.
  • the first data may be a video file.
  • the sharing instruction triggered by the user is a synchronization instruction
  • the video file can be played synchronously on different display devices (including a first display device and at least one second display device), thereby achieving synchronous playback of multiple display devices.
  • Step 101 The first display device sends the first data to a second display device; wherein the second display device and the first display device are connected to the same network;
  • the first display device sends the first data to one or more second display devices.
  • Step 102 The second display device displays the first data.
  • the first display device can send the first data to one second display device or to multiple second display devices, and the user can specify the second display device and send the first data to the specified second display device, wherein the second display device specified by the user can be one or more.
  • each display device in this embodiment is configured with an Android system and is installed with a writing program such as an electronic whiteboard.
  • a writing program such as an electronic whiteboard.
  • the display device in this embodiment can be a first display device or a second display device, and the "first" and “second” in this embodiment are only used to distinguish different display devices.
  • the second display device and the first display device are connected to the same network, which specifically refers to using devices such as routers and switches to connect each display device to the same network environment through wired, Bluetooth or WIFI.
  • the first display device and at least one second display device in the present embodiment are connected to the same local area network, and a menu interface of all connected display devices in the same local area network can be provided on any display device.
  • the user can specify one or more other display devices from the menu interface displayed on any display device, thereby establishing a communication connection between the multiple display devices; or randomly select one or more display devices from the menu interface to establish a communication connection between the multiple display devices.
  • the user before triggering the sharing instruction, the user may first determine one or more second display devices connected to the first display device, so that after triggering the sharing instruction, the first data is sent to the second display devices connected thereto.
  • the above method is applied to an intelligent display system, where the first data includes first handwritten data.
  • the intelligent display system includes a first display device 200 and a second display device 201; the first display device 200 and the second display device 201 are connected in communication;
  • the first display device 200 includes a first display and a first processor, wherein the first processor is configured to execute: receiving a sharing instruction triggered by a user, determining first handwriting data corresponding to the sharing instruction, and sending the first handwriting data to the second display device 201; wherein the first handwriting data is the handwriting data currently displayed by the first display device 200;
  • the second display device 201 includes a second display and a second processor, and the second processor is configured to execute: receiving the first handwriting data and controlling the second display to display the first handwriting data.
  • the first processor in this embodiment is installed with an operating system, including but not limited to Android, Windows and other operating systems.
  • the first handwriting data in this embodiment is handwriting data generated by the user writing on the first display device 200 with a finger or a writing pen, and is displayed in real time on the first display device.
  • the handwriting data includes but is not limited to handwriting vector data, touch track point coordinates and other data.
  • the second display device can render the handwriting data according to the handwriting vector data or the touch track point coordinates, and display the final rendered handwriting data on the second display.
  • this embodiment executes different sharing strategies based on different sharing instructions, including any one or more of the following:
  • the first strategy when the sharing instruction is an exchange instruction, the first display device and the designated second display device exchange the data displayed by each of them;
  • the designated second display device displays the first data
  • the first display device displays the second data
  • the second data is the data displayed by the designated second display device before the exchange.
  • the first display device when the sharing instruction is an interchange instruction, sends the sharing instruction to the designated second display device; the designated second display device determines the second data corresponding to the sharing instruction and sends the second data to the first display device; the first display device displays the received second data.
  • the intelligent display system is further configured to execute:
  • the first display device and the second display device exchange handwritten data displayed by each of them;
  • the second display device displays the first handwritten data, and the first display device displays the second handwritten data; wherein the second handwritten data is the handwritten data displayed by the second display device before the exchange.
  • the second handwriting data is handwriting data generated by the user writing on the second display device 201 using a finger or a writing pen, and is displayed on the second display in real time.
  • the first display device sends the sharing instruction to the second display device; the second display device determines the second handwriting data corresponding to the sharing instruction, and sends the second handwriting data to the first display device; the first display device displays the received second handwriting data.
  • the sharing instruction is an exchange instruction
  • the first handwriting data displayed on the first display device and the second handwriting data displayed on the second display device may be displayed exchangeably.
  • this embodiment provides a display process of interchange data, which is specifically as follows:
  • Step 300 "Written content A” is displayed on the electronic whiteboard of the first display device, and “Written content B” is displayed on the electronic whiteboard of the second display device;
  • Step 301 The first display device or the second display device receives an exchange instruction triggered by a user
  • Step 302 The first display device and the second display device exchange the data displayed by each other;
  • Step 303 "Written content B" is displayed on the electronic whiteboard of the first display device, and "Written content A” is displayed on the electronic whiteboard of the second display device.
  • Step 304 The exchange is completed.
  • the first data corresponding to the sharing instruction in this embodiment may be the data displayed on the display interface of the electronic whiteboard when the first display device receives the sharing instruction.
  • the second data corresponding to the sharing instruction may be the data displayed on the display interface of the electronic whiteboard when the second display device receives the sharing instruction.
  • this embodiment further provides a method for preventing data loss caused by user misoperation during data exchange, and the specific methods are any one or more of the following:
  • Mode (1) When a first condition is met, the first display device displays a prompt for loading data, and/or stops receiving operations performed by the user, wherein the first condition includes that the first display device has not completed displaying the second data; or
  • the first display device displays a prompt for loading data, and/or stops receiving operations performed by the user, wherein the second condition includes that the second display device has not completed displaying the first data;
  • the first display device displays a prompt for loading data and/or stops receiving operations performed by the user.
  • the first display device displays a prompt for loading data and/or stops receiving operations performed by the user, wherein the first condition includes that the first display device has not completed displaying the second handwritten data;
  • the first display device displays a prompt for loading data and/or stops receiving operations performed by the user, wherein the second condition includes that the second display device has not completed the display of the first handwritten data.
  • the method further includes:
  • the second display device displays a prompt for loading data and/or stops receiving operations performed by the user, wherein the second condition includes that the second display device has not completed displaying the first data.
  • the designated second display device displays a prompt for loading data and/or stops receiving operations performed by the user.
  • the second display device displays a prompt for loading data and/or stops receiving operations performed by the user, wherein the second condition includes that the second display device has not completed displaying the first handwritten data.
  • a loading ring may be displayed on the display interface of the first display device while the first display device is loading the second data and the second display device is loading the first data, thereby preventing the user from operating the display interface, resulting in data exchange failure and data loss.
  • the first display device before the first display device and the designated second display device exchange the data displayed by each other, the first display device stores the first data, and the designated second display device stores the second data.
  • the first display device stores the first data on its own disk
  • the second display device stores the second data on its own disk
  • the first display device or the designated second display device receives a user-triggered instruction to end the exchange; the first display device displays the stored first data, and/or the designated second display device updates the currently displayed first data to the stored second data.
  • the first display device and the second display device of this embodiment exchange the handwritten data displayed by each other, the first display device or the second display device receives an instruction triggered by the user to end the exchange; the first display device displays the stored first handwritten data, and/or the second display device updates the displayed first handwritten data to the stored second handwritten data.
  • the user can trigger the end swap command on any display device that executes the swap command, and the swapped display device will restore the displayed content to the content before the swap.
  • the first display device keeps the current content unchanged, and the second display device restores the currently displayed content to the content before the swap, or after receiving the end swap command, the second display device keeps the current content unchanged, and the first display device restores the currently displayed content to the content before the swap.
  • the first display device When the first display device receives the end-exchange instruction triggered by the user, it sends the end-exchange instruction to the designated second display device, and the first display device and the second display device each restore the data stored on the disk before the exchange.
  • this embodiment further provides a detailed process of data exchange, wherein the devices for data exchange include a first display device and a second display device, and the first display device and the second display device are both pre-installed with an electronic whiteboard program.
  • the specific implementation process is as follows:
  • Step 400 first data is displayed on the electronic whiteboard of the first display device, and second data is displayed on the electronic whiteboard of the second display device;
  • the first data and the second data may be handwriting data of the user or a text document, and this embodiment does not impose too many restrictions on this.
  • Step 401 The first display device receives an exchange instruction triggered by a user, and sends the exchange instruction to the second display device;
  • the first display device may display a "Swap” virtual button, and the user may click the “Swap” virtual button to trigger the execution of the swap instruction.
  • the "Swap” virtual button may also be displayed on the second display device, and the user may click the "Swap” virtual button on any display device that is about to perform the swap, thereby executing the swap instruction.
  • Step 402 both the first display device and the second display device display a prompt for loading data
  • the first display device and the second display device are in an interchange state at the same time.
  • a "loading ring" can be displayed on the display interface of the first display device and the second display device to prompt the user not to operate the interface.
  • Step 403 the first display device stores the first data, and the second display device stores the second data;
  • the first display device and the second display device respectively save their displayed data to their own disks, such as sdcard.
  • Step 404 The first display device sends the first data to the second display device, and the second display device sends the second data to the first display device;
  • the first smart device can download the file data of the second smart device to the local disk
  • the second smart device can download the file data of the first smart device to the local disk through the TFTP protocol.
  • TFTP is a simple protocol for transmitting files, which is implemented based on the UDP protocol. It is a protocol for simple file transfer between the client and the server, providing a simple and low-cost file transfer service.
  • Step 405 the first display device imports the second data, and the second display device imports the first data
  • Step 406 After the import is completed on the second display device, an import completion notification is sent to the first display device;
  • Step 407 After the first display device determines that it has completed importing the second data, it sends an end-of-exchange instruction to the second display device;
  • Step 408 The first display device and the second display device hide the loading data prompt, and the exchange ends.
  • the execution of the swap instruction requires the determination of a designated second display device.
  • the present disclosure provides any one or more of the following methods for determining the designated second display device:
  • Mode 1a determining any one of the at least one second display device that establishes a UDP connection with the first display device as the designated second display device;
  • any two display devices among the multiple display devices that have established UDP connections can be selected from multiple first display devices connected to the same local area network to perform data exchange. In this manner, no additional operation by the user is required.
  • the first display device will randomly select a display device that has established a UDP connection with itself, or it can pre-store a preset display device for data exchange. If the preset display device establishes a UDP connection with it, the preset display device will serve as the designated second display device.
  • the first display device displays a list of devices to establish a UDP connection, receives a designated instruction triggered by a user to a second display device in the device list, and determines the second display device corresponding to the designated instruction as the designated second display device.
  • the first display device will provide the retrieved results to the user in the form of a device list based on all display devices currently searched to establish a UDP connection with itself.
  • the user can specify a display device to exchange data with the first display device according to actual needs.
  • the second strategy when the sharing instruction is a synchronization instruction, the first display device and the second display device synchronously display the same data;
  • the same handwritten data includes the first display device and the second display device, data displayed by the first display device or the second display device before synchronization, or data received by the first display device or the second display device after synchronization.
  • the first display device when the sharing instruction is a synchronization instruction, sends the sharing instruction to the second display device; and the second display device synchronously displays the received first data.
  • At least two display devices may synchronously display the same data, for example, synchronously display the same handwriting information or text file, or simultaneously play the same video, which is not limited in this embodiment.
  • each display device synchronously displays the first data, thereby realizing synchronous display of the first data.
  • the sharing instruction when the first data is first handwritten data, the sharing instruction includes a synchronization instruction; the first display device and the second display device synchronously display the same handwritten data;
  • the same handwriting data includes the first display device and the second display device, the handwriting data displayed by the first display device or the second display device before synchronization, or the handwriting data received by the first display device or the second display device after synchronization.
  • the first display device when the sharing instruction includes a synchronization instruction, sends the sharing instruction to the second display device; and the second display device displays the received first handwritten data.
  • this embodiment further provides an operation of displaying loading data to remind the user to avoid operating the current interface, specifically including any one or more of the following methods:
  • the first display device displays loading data and/or stops receiving operations performed by the user before determining that each second display device has completed displaying the first data;
  • any second display device Before any second display device determines that it and other second display devices except itself have completed displaying the first data, any second display device displays loading data and/or stops receiving operations performed by the user.
  • a loading ring can be displayed on the display interface of the first display device and each second display device during the process of loading the first data on each second display device, so as to avoid the problem of data exchange failure and data loss caused by user operation of the display interface. When all the second display devices have loaded the first data, the loading ring is hidden.
  • the first display device before the first display device and the at least one second display device synchronously display the same data, the first display device stores the first data and the at least one second display device stores the second data.
  • the first display device and the second display device each store data in their own disks for subsequent data recovery after synchronization is completed.
  • the first display device or any one of the second display devices can also receive handwriting data written by the user; and display the handwriting data on each display device that displays synchronously.
  • any display device when multiple display devices are in a synchronous display scenario, after any display device receives handwriting data written by the user, it will be synchronously displayed on all synchronized display devices, and the synchronous display function will continue to be executed.
  • the first display device or the second display device receives handwriting data written by the user; and synchronously displays the handwriting data on the first display device and the second display device that display synchronously.
  • the first display device or any one of the second display devices may also receive an operation instruction triggered by a user; and perform an operation corresponding to the operation instruction on each display device synchronously displaying the same data.
  • the first display device or the second display device receives an operation instruction triggered by the user; and synchronously executes the operation corresponding to the operation instruction on the first display device and the second display device that display synchronously.
  • all synchronized display devices execute the operation corresponding to the operation instruction, where the operation instructions in this embodiment include but are not limited to at least one of deletion, modification, addition, and marking.
  • the following steps may also be performed:
  • Any display device for synchronous display receives a synchronization end instruction triggered by a user
  • the any one of the display devices sends the end synchronization instruction to other synchronous display devices except the any one of the display devices;
  • the other synchronous display devices update their respective displayed data to the data stored before the synchronous display.
  • any one of the synchronous display devices receives an end synchronization instruction triggered by the user; the display device sends the end synchronization instruction to other display devices among the synchronous display devices except the display device; the other display devices update the handwriting data displayed to the handwriting data stored before the synchronous display.
  • the first display device before the first display device and the second display device synchronously display the same handwritten data, the first display device stores the first handwritten data, and the second display device stores the second handwritten data.
  • this embodiment further provides a display process of synchronization data, and the specific implementation steps of the process are as follows:
  • Step 500 first data is displayed on the electronic whiteboard of the first display device, and second data is displayed on the electronic whiteboard of the second display device;
  • the first data and the second data may be handwriting data of the user or a text document, and this embodiment does not impose too many restrictions on this.
  • Step 501 The first display device receives a synchronization instruction triggered by a user, and sends the synchronization instruction to the second display device;
  • the first display device can display a "Sync” virtual button, and the user clicks the "Sync” virtual button to trigger the execution of the exchange instruction.
  • the "Sync” virtual button can also be displayed on the second display device, and the user can click the "Sync” virtual button on any display device that is about to perform synchronization to execute the synchronization instruction.
  • Step 502 The first display device and the second display device synchronously display the first data
  • Step 503 The user receives the handwriting data written by the user on any display device, and displays it on the display device for synchronous display;
  • Step 504 The first display device receives a synchronization end instruction triggered by the user
  • Step 505 The first display device continues to display the first data and handwriting data, and the second display device displays the second data.
  • this embodiment further provides a detailed process of data synchronization, wherein the devices for data synchronization include a first display device and a second display device, and the first display device and the second display device are both pre-installed with an electronic whiteboard program.
  • the specific implementation process is as follows:
  • Step 600 Display first data on the electronic whiteboard of the first display device, and display second data on the electronic whiteboard of the second display device;
  • Step 601 The first display device receives a synchronization instruction triggered by a user, and sends the synchronization instruction to the second display device;
  • the UDP or UDT protocol may be used to send the synchronization instruction to the second display device.
  • Step 602 a loading data prompt is displayed on both the first display device and the second display device;
  • the first display device and the second display device are in synchronization state at the same time.
  • a "loading ring" can be displayed on the display interface of the first display device and the second display device to prompt the user not to operate the interface.
  • Step 603 The first display device stores the first data, and the second display device stores the second data;
  • the first display device and the second display device respectively save their displayed data to their own disks, such as sdcard.
  • Step 604 The second display device downloads the first data of the first display device
  • the second display device may download the first data of the first display device to a local disk through the TFTP protocol.
  • Step 605 The second display device imports the first data
  • the second display device obtains the first data according to the TFTP protocol.
  • Step 606 After the import is completed on the second display device, an import completion notification is sent to the first display device;
  • Step 607 The first display device determines that synchronization is complete, and notifies the second display device to start synchronization mode;
  • Step 608 The first display device and the second display device hide the loading data prompt.
  • Step 609 any one of the display devices receives the handwriting data written by the user and displays it on the first display device and the second display device;
  • Step 610 The first display device receives the end synchronization instruction triggered by the user and sends it to the second display device;
  • Step 611 The second display device loads the stored second data for update display
  • Step 612 End synchronization.
  • the first display device and the at least one second display device synchronously play the same video file.
  • synchronous video playback means that after playing a video on a first display device (such as 86 inches), the same video is played simultaneously on at least one second display device (such as 63 inches), and the playback progress is kept the same, so as to achieve the effect of synchronous video playback on multiple screens.
  • the present disclosure provides at least two playback modes, as follows:
  • the first display device After receiving the synchronization instruction triggered by the user, the first display device determines the video file corresponding to the synchronization instruction; sends the identification data of the video file to at least one second display device; at least one second display device loads the video file for playback according to the identification data.
  • the identification data includes at least one of a file storage path, a file playback address, and a file name.
  • the video file is also stored in the second display device, so that the video file is played according to the file playback address of the video file in the local disk, that is, the second display device receives the file playback address of the video file sent by the first display device, and obtains the corresponding video file from the local disk for playback.
  • the first display device After receiving the synchronization instruction triggered by the user, the first display device determines the video file corresponding to the synchronization instruction; sends the video file to at least one second display device; and the at least one second display device plays the video file after receiving it.
  • the following steps may also be performed:
  • the first display device calculates the playback progress of the video file according to a set period, and sends the playback progress to each second display device; each second display device adjusts the playback progress of the video file played by itself according to the playback progress.
  • the first display device when the first data of the first display device is a video file and the sharing instruction is a synchronization instruction, the first display device sends the identification data of the first data to at least one second display device; the at least one second display device obtains the first data and plays it according to the identification data.
  • the video file can be obtained according to the identification data of the video file based on the TFTP protocol.
  • this embodiment provides a process for synchronously playing videos on multiple devices, wherein the synchronously playing devices include a first display device and at least one second display device, and video playing software is pre-installed on both the first display device and the at least one second display device.
  • the specific implementation steps are as follows:
  • Step 700 both the first display device and at least one second display device start a video player
  • Step 701 A first display device receives a user's synchronization instruction for any video file, and sends identification data of the video file to at least one second display device;
  • Step 702 The first display device and at least one second display device start playing the video file
  • Step 703 The first display device records the system timestamp T1 when the video file starts playing
  • Step 704 Execute steps 705 to 708 once every set time period of playing the video file
  • the multi-device video playback synchronization process will be executed once, that is, step 705 to step 708;
  • Step 705 The first display device obtains the current system timestamp T2;
  • Step 706 The first display device calculates the playback progress T3 of the video file and sends it to at least one second display device;
  • T3 T2-T1
  • the playback progress is sent to each second display device via the UDP protocol
  • Step 707 at least one second display device adjusts the playback progress of the video file being played by itself according to T3;
  • At least one second display device calls a related method of the player according to the playback progress and jumps to a specified playback progress T3 of the video file.
  • Step 708 The synchronous playback progress is completed.
  • Step 709 After the video file is played, the synchronous playback ends.
  • a third strategy when the sharing instruction is a share instruction, the first data is sent to the at least one second display device and displayed on the at least one second display device.
  • the first display device when the sharing instruction is a sharing instruction, sends the identification data of the first data to the at least one second display device; the at least one second display device obtains the first data according to the identification data and displays it.
  • the sharing instruction includes an instruction triggered by sliding with three fingers.
  • the first display device When the first display device receives a sharing instruction triggered by the user, it records the system timestamp TimeBegin when the pressing event occurs for the first time;
  • TimeEnd–TimeBegin ⁇ T and the relative movement of the three fingers is greater than L (i.e.
  • T is the preset time threshold
  • L is the preset sliding distance threshold
  • the identification data is transmitted based on the UDP protocol; and/or the first data is obtained according to the identification data based on the TFTP protocol.
  • the first display device and the at least one second display device establish a UDP (User Datagram Protocol) connection; and transmit control data through the UDP connection channel.
  • UDP User Datagram Protocol
  • control data includes at least one of the shared signaling, identification data of the first data, and interactive data;
  • identification data includes at least one of a file saving path, a file playback address, and a file name.
  • the display devices in this embodiment may select a wired network, a wireless network, a Bluetooth or other communication line.
  • the UDT protocol is used as a transport layer protocol for transmitting control data.
  • a UDT connection is established between at least one second display device in this embodiment and the first display device, and control data including but not limited to sharing instructions and/or identification data is transmitted through the UDT.
  • UDT UDP-based Data Transfer Protocol
  • TCP Transmission Control Protocol
  • UDT is built on top of UDP and introduces new congestion control and data reliability control mechanisms.
  • UDT is a connection-oriented, bidirectional application layer protocol that supports both reliable data stream transmission and partially reliable datagram transmission. Since UDT is fully implemented on UDP, UDT can also be used in other application areas besides high-speed data transmission, such as point-to-point technology (P2P), firewall penetration, multimedia data transmission, etc.
  • P2P point-to-point technology
  • the display devices in this embodiment are all configured with the Android system.
  • the application layer of the first display device and the at least one second display device establishes a UDP (or UDT) connection; or, the application framework layer of the first display device and the at least one second display device establishes a UDP (or UDT) connection.
  • the Android platform uses the UDT protocol, which can be placed in the application layer (Application). If there is system customization development, it can also be placed in the application framework layer (Application Framework).
  • the first display device and the second display device before the first display device sends the first handwritten data to the second display device, the first display device and the second display device establish a UDP connection; and transmit the sharing instruction through the UDP connection channel.
  • Step 1 The first display device sends a UDP broadcast message, where the UDP broadcast message carries a first IP address of the first display device;
  • the first display device since the first display device cannot obtain data such as the second IP address of other second display devices when data is shared between multiple display devices, the first display device that receives the sharing instruction triggered by the user needs to first broadcast its own first IP address in the global area network through UDP broadcast, that is, broadcast in the same network;
  • Step 2 After the second display device scans the UDP broadcast message, it prompts the user on the display interface whether to establish a connection;
  • the present invention provides a user confirmation method, which prompts the user on the display interface whether to establish a connection, and the user confirms whether to establish a connection based on the IP address or device identifier of the display interface.
  • Step 3 The second display device receives an instruction from the user to confirm establishing a connection, and sends a UDP message to the first display device, where the UDP message carries the second IP address of the second display device;
  • the first IP address is carried in a UDP broadcast message.
  • the second display device sends a UDP message including its own second IP address to the first IP address, wherein the UDP message may also include data such as the device identification of the second display device.
  • Step 4 The first display device and the second display device establish a UDP connection according to the first IP address and the second IP address.
  • the first display device After the first display device receives the second IP address, it establishes a UDP connection with its own first IP address. After the second display device receives the first IP address, it establishes a UDP connection with its own second IP address, thereby realizing the interconnection between any two display devices, and sending control data such as sharing instructions through the UDP connection channel.
  • this embodiment provides a process for establishing a UDP connection between display devices, which is specifically as follows:
  • Step 800 The first display device sends a UDP broadcast message carrying its own first IP address
  • Step 801 After the second display device scans the UDP broadcast message, it prompts the user on the display interface whether to establish a connection;
  • Step 802 The second display device receives the user's instruction to confirm the establishment of the connection, and sends a UDP message to the first display device, carrying its own second IP address and device identification;
  • Step 803 Establish a UDP connection between the first display device and the second display device.
  • Step 804 Send control data through the UDP connection channel.
  • the timing for initiating UDP broadcasting includes any one or more of the following:
  • the first display device When the first display device receives a sharing instruction triggered by the user, it sends a UDP broadcast message;
  • any display device sends a UDP broadcast message, it can directly establish connections with other display devices in pairs. For example, when there are 3 display devices in the same network that form a set of display device environment, including a first display device and two second display devices, a UDP broadcast message is sent to the first display device, and each second display device receives the UDP broadcast message and establishes a UDP connection with the first display device.
  • a second display device can also obtain the second IP address of another display device, thereby establishing UDP connections between the two devices to achieve the interconnection of the three display devices.
  • multiple display device environments can be formed. The user can confirm whether to establish a connection and select each display device to establish a connection, thereby avoiding the situation where connections exist between different display device environments.
  • this embodiment provides a UDP connection establishment process between display devices, which is specifically as follows:
  • Step 900 each display device starts the electronic whiteboard program
  • Step 901 The first display device displays a "scan device button” and receives a user's click instruction on the "scan device button”;
  • Step 902 The first display device displays its own IP address and sends a UDP broadcast message carrying its own first IP address;
  • Step 903 The two second display devices both display a connection request list and a "Confirm Connection” button; wherein each connection request in the connection request list displays the first IP address of the first display device;
  • Step 904 receiving a user's click instruction on a "Confirm Connection” button, and the two second display devices send their respective second IP addresses and device identifiers to the first display device;
  • Step 905 The first display device completes the UDP connection
  • Step 906 The first display device sends a list of devices connected to itself to the two second display devices respectively;
  • Step 907 Each second display device obtains the IP data of the other two display devices, and the display devices are interconnected.
  • each display device provides a connection interface for the connected device and displays a button for canceling the connection to avoid user misoperation.
  • the first display device and the at least one second display device in this embodiment can also use TFTP (Trivial File Transfer Protocol) to transfer file data between the display devices that have established the UDP connection, wherein the file data includes at least one of a text file, a video file, and an audio file.
  • TFTP Trivial File Transfer Protocol
  • the specific implementation process of this embodiment using TFTP to transmit the file data is as follows:
  • the sending end starts the TFTP server program and sends the file storage path of the file data to the receiving end via UDP;
  • the sending end represents the display device that sends file data among the display devices that establish a UDP connection
  • the receiving end represents the display device that receives the file data
  • the sending end can be the first display device or the second display device
  • the receiving end can be the first display device or the second display device.
  • the sending end and the receiving end are determined based on the actual business situation, and this embodiment does not impose too many restrictions on this.
  • the receiving end starts the TFTP client program, sends a download request to the TFTP server program, and downloads the file data according to the file storage path;
  • the file data may be sent and received using the TFTP protocol.
  • the transmission process is described as follows:
  • the first display device starts the TFTP server program, sends the file saving path of the file data to the second display device through UDP, and the second display device starts the TFTP client program, sends a download request to the TFTP server program according to the TFTP protocol process, actively downloads the corresponding file data according to the file saving path, and stores the downloaded file data in the local disk.
  • the file saving address can be determined according to the file saving path, so that the corresponding file data is actively downloaded to the local disk based on the saving address.
  • the TFTP protocol may be used to implement the reception and transmission of the first data.
  • the handwriting data is transmitted using TFTP between the display devices that have established the UDP connection.
  • the first display device and the second display device transmit handwritten data in the following manner:
  • the sending end starts the TFTP server program and sends the file saving path of the handwriting data to the receiving end through UDP; wherein the sending end represents the display device that sends the handwriting data among the display devices that establish a UDP connection, and the receiving end represents the display device that receives the handwriting data; the receiving end starts the TFTP client program and downloads the handwriting data according to the file saving path.
  • the display parameters of the first display device and the at least one second display device in this embodiment are different; wherein the display parameters represent at least one indicator of size and resolution when the file data is displayed in full screen.
  • the first data sent by the first display device to the second display device includes display parameters of the first display device, wherein the first data may be saved in the form of a binary file; and whether the display parameters of the first display device and the at least one second display device are the same is determined in the following manner:
  • the second display device After receiving the first data, the second display device deserializes the first data into a Java object and parses it to obtain the display parameters of the first display device in the first data; the second display device determines whether its own display parameters are the same as the display parameters obtained by parsing.
  • the first data is a text file saved in the local disk by the electronic whiteboard program
  • the first data is saved as a binary file
  • the electronic whiteboard loads the binary file into the memory through the IO stream, deserializes the binary file into a Java object through the Protobuf protocol, and parses the display parameters of the first display device in the first data.
  • stream is an abstract concept, which means the unstructured transmission of data. Input and output are performed in the form of streams. Data is treated as an unstructured byte sequence or character sequence. IO stream is input and output in the form of streams.
  • the first data displayed by the first display device is processed in the following manner, and the processed first data is displayed on the at least one second display device:
  • the at least one second display device performs correction processing on the first data and displays the corrected first data; wherein the correction processing includes displacement and/or scaling.
  • the correction process in this embodiment includes any one or more of the following methods:
  • Mode a when the display parameter of the first display device is less than or equal to the display parameter of the second display device, the first data is shifted and the shifted first data is displayed;
  • Mode b when any indicator in the display parameters of the first display device is greater than the corresponding indicator in the display parameters of the second display device, the first data is scaled and the scaled first data is displayed.
  • the display parameter of the first display device is a first size
  • the display parameter of the second display device is a second size
  • the first size includes a first width and a first height
  • the second size includes a second width and a second height
  • the first size may be a display parameter written into a text file when the first data displayed on the electronic whiteboard is saved as a text file
  • the second size may be the width and height of the writing display area in the electronic whiteboard being run by the second display device.
  • Mode a1) when the first width is less than or equal to the second width, and the first height is less than or equal to the second height, the first data is shifted and the shifted first data is displayed;
  • the present embodiment provides a schematic diagram of a displacement display of first data, wherein the first width carried in the first data is equal to the second height, and the first height is equal to the second height, that is, the second size of the full-screen display of the electronic whiteboard in the second display device is the same as the first size of the full-screen display of the electronic whiteboard in the first display device.
  • the display effect will not change. Therefore, the first data may not be displaced, and the second display device may directly display the first data. For example, if both the first display device and the second display device are 63-inch screens, the first data may be directly imported into the second display device for display, and no correction processing is required for the first data.
  • the present embodiment provides a schematic diagram of a displacement display of first data, wherein the first width is smaller than the second width and the first height is smaller than the second height, that is, the first size of the full-screen display of the electronic whiteboard in the first display device is smaller than the second size of the full-screen display of the electronic whiteboard in the second display device; if the first data is not displaced, it is displayed in the upper left corner of the electronic whiteboard of the second display device by default.
  • the first data when the first data is a text file saved in the electronic whiteboard and the first data is the track information written by the user, the first data includes the coordinates of each track point in the track information, and the first data can be shifted in any of the following ways:
  • the display effect is shown in FIG11A , wherein X represents the horizontal coordinate of the trajectory point in the first data after displacement, Y represents the vertical coordinate of the trajectory point in the first data after displacement, FX represents the horizontal coordinate of the trajectory point in the first data before displacement, and FY represents the vertical coordinate of the trajectory point in the first data before displacement.
  • Mode 4b Displaying the first data at the upper middle position of the second display device by using the following formula
  • the display effect is shown in FIG11B , wherein X represents the horizontal coordinate of the trajectory point in the first data after displacement, Y represents the vertical coordinate of the trajectory point in the first data after displacement, FX represents the horizontal coordinate of the trajectory point in the first data before displacement, and FY represents the vertical coordinate of the trajectory point in the first data before displacement; CW represents the second width in the second size of the second display device, and FW represents the first width in the first size of the first display device.
  • the display effect is shown in FIG11C , wherein X represents the horizontal coordinate of the trajectory point in the first data after displacement, Y represents the vertical coordinate of the trajectory point in the first data after displacement, FX represents the horizontal coordinate of the trajectory point in the first data before displacement, and FY represents the vertical coordinate of the trajectory point in the first data before displacement; CW represents the second width in the second size of the second display device, and FW represents the first width in the first size of the first display device.
  • the display effect is shown in FIG11D , wherein X represents the horizontal coordinate of the trajectory point in the first data after displacement, Y represents the vertical coordinate of the trajectory point in the first data after displacement, FX represents the horizontal coordinate of the trajectory point in the first data before displacement, and FY represents the vertical coordinate of the trajectory point in the first data before displacement; CH represents the second height in the second size of the second display device, and FW represents the first width in the first size of the first display device.
  • X represents the horizontal coordinate of the trajectory point in the first data after displacement
  • Y represents the vertical coordinate of the trajectory point in the first data after displacement
  • FX represents the horizontal coordinate of the trajectory point in the first data before displacement
  • FY represents the vertical coordinate of the trajectory point in the first data before displacement
  • CW represents the second width in the second size of the second display device
  • CH represents the second height in the second size of the second display device
  • FW represents the first width in the first size of the first display device.
  • X represents the horizontal coordinate of the trajectory point in the first data after displacement
  • Y represents the vertical coordinate of the trajectory point in the first data after displacement
  • FX represents the horizontal coordinate of the trajectory point in the first data before displacement
  • FY represents the vertical coordinate of the trajectory point in the first data before displacement
  • CW represents the second width in the second size of the second display device
  • CH represents the second height in the second size of the second display device
  • FW represents the first width in the first size of the first display device.
  • Mode 4g Displaying the first data at the center of the second display device by using the following formula
  • the display effect is shown in FIG11G , wherein X represents the horizontal coordinate of the trajectory point in the first data after displacement, Y represents the vertical coordinate of the trajectory point in the first data after displacement, FX represents the horizontal coordinate of the trajectory point in the first data before displacement, and FY represents the vertical coordinate of the trajectory point in the first data before displacement;
  • CW represents the second width in the second size of the second display device, CH represents the second height in the second size of the second display device, and FW represents the first width in the first size of the first display device.
  • this embodiment provides a schematic diagram in which the first data cannot be displayed.
  • the first width is greater than the second width and the first height is greater than the second height, that is, the first size carried in the first data is greater than the second size, the part of the first data that exceeds the display capacity of the second display device cannot be displayed. Therefore, the first data can be scaled and displayed.
  • this embodiment provides a schematic diagram of scaling and displaying first data.
  • the first width is greater than the second width and the first height is greater than the second height, that is, the first size carried in the first data is greater than the second size
  • the first data is scaled so that the size of the scaled first data can adapt to the second size, and the scaled first data is displayed.
  • Scale represents the scaling factor
  • ScaleX represents the scaling value of the X-axis
  • ScaleY represents the scaling value of the Y-axis
  • Math.max(ScaleX, ScaleY) represents taking the maximum value of ScaleX and ScaleY
  • CW represents the second width in the second size of the second display device
  • CH represents the second height in the second size of the second display device
  • FW represents the first width in the first size of the first display device
  • FH represents the first height in the first size of the first display device.
  • X represents the horizontal coordinate of the trajectory point in the first data after scaling
  • Y represents the vertical coordinate of the trajectory point in the first data after scaling
  • FX represents the horizontal coordinate of the trajectory point in the first data before scaling
  • FY represents the vertical coordinate of the trajectory point in the first data before scaling
  • Scale represents the scaling factor.
  • this embodiment further provides an execution flow of importing a text file, taking the first data as a text file and the display parameter as a size as an example, wherein the size includes width and height, the display parameter of the first display device is a first size, the display parameter of the second display device is a second size, the first size includes a first width and a first height, and the second size includes a second width and a second height; the first size represents the width and height of the text file displayed on the electronic whiteboard of the first display device, and the second size represents the width and height of the text file displayed on the electronic whiteboard of the second display device; the specific implementation flow is as follows:
  • Step 1300 The first display device sends first data to the second display device
  • Step 1301 The second display device receives first data, and parses the first data to obtain a first width and a first height carried in the first data;
  • Step 1302 The second display device determines its own second width and second height
  • Step 1303 when the first width is less than or equal to the second width and the first height is less than or equal to the second height, the second display device shifts the first data and displays the shifted first data;
  • Step 1304 When the first width ⁇ the second width and the first height > the second height, or the first width > the second width and the first height ⁇ the second height, or the first width > the second width and the first height > the second height, the second display device scales the first data and displays the scaled first data.
  • this embodiment further provides a storage strategy, specifically any one or more of the following methods:
  • the first display device receives first data written by a user and stores the data in a local disk, wherein the first data includes handwriting data written by the user;
  • the second display device receives the second data written by the user and stores it in a local disk; sends the second data to the first display device, and the first display device stores the second data in the local disk.
  • the second display device and the first display device both store the same data, they can directly read the data stored in their respective local disks during synchronous display, thus saving data transmission time and improving synchronization efficiency.
  • this embodiment also provides a method for opening file data, which is specifically as follows:
  • the first display device displays a file list, wherein the file list includes at least one file data
  • the candidate device list includes the first display device and the at least one second display device
  • the first display device sends the target file data to the target display device, and the target display device displays the target file data.
  • an embodiment of the present disclosure further provides a display device, which can execute the implementation steps of any display device in a data sharing display method in this embodiment.
  • the display device can be a first display device in an intelligent display system provided in this embodiment, as shown in FIG. 14 , including a display 1400 and a processor 1401, wherein:
  • the display 1400 is used to display content
  • the processor 1401 is configured to execute:
  • Receive a sharing instruction triggered by a user determine first handwriting data corresponding to the sharing instruction, and send the first handwriting data to a second display device so that the second display device receives the first handwriting data and displays the first handwriting data; wherein the first handwriting data is the handwriting data currently displayed by the first display device.
  • the sharing instruction includes an exchange instruction; the processor 1401 is further configured to execute:
  • the display device and the second display device exchange handwritten data displayed by each of them;
  • the second display device displays the first handwritten data, and the display device displays the second handwritten data
  • the second handwriting data is the handwriting data displayed by the display device before the exchange.
  • the processor 1401 is specifically configured to execute:
  • the display device sends the sharing instruction to the second display device, so that the second display device determines the second handwritten data corresponding to the sharing instruction and sends the second handwritten data to the first display device;
  • the first display device receives the second handwriting data and displays the second handwriting data.
  • the sharing instruction includes a synchronization instruction; the processor 1401 is further configured to execute:
  • the display device and the second display device synchronously display the same handwritten data
  • the same handwriting data includes the handwriting data displayed by the display device or the second display device before synchronization, or the handwriting data received by the display device or the second display device after synchronization.
  • the embodiment of the present disclosure also provides a method for data sharing and display, which is applied to an intelligent display system, as shown in FIG15 .
  • the specific implementation process of the method is as follows:
  • Step 1500 The first display device receives a sharing instruction triggered by a user, determines first handwriting data corresponding to the sharing instruction, and sends the first handwriting data to the second display device; wherein the first handwriting data is the handwriting data currently displayed by the first display device;
  • Step 1501 The second display device receives the first handwriting data and displays the first handwriting data.
  • the embodiment of the present disclosure also provides a system for data sharing and display. Since the system is the system in the method in the embodiment of the present disclosure, and the principle of solving the problem by the system is similar to that of the method, the implementation of the system can refer to the implementation of the method, and the repeated parts will not be repeated.
  • the system includes a first display device 1600 and a second display device 1601, wherein:
  • the first display device 1600 receives a sharing instruction triggered by a user, and determines first data corresponding to the sharing instruction, wherein the first data represents file data to be shared by the first display device;
  • the first display device 1600 sends the first data to the second display device 1601; wherein the second display device 1601 and the first display device 1600 are connected to the same network;
  • the second display device 1601 displays the first data.
  • an embodiment of the present disclosure also provides an intelligent display device, which includes a processor and a memory, wherein the memory is used to store programs executable by the processor, and the processor is used to read the programs in the memory and can execute the implementation steps of any display device in a data sharing display method in this embodiment.
  • an embodiment of the present disclosure further provides a computer storage medium on which a computer program is stored, and when the program is executed by a processor, the steps of the above-mentioned data sharing and display method are implemented.
  • the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program codes.
  • These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
  • These computer program instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

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  • User Interface Of Digital Computer (AREA)

Abstract

La présente divulgation concerne un procédé d'affichage de partage de données et un système d'affichage intelligent, qui sont utilisés pour permettre à une pluralité de dispositifs d'affichage de partager et d'afficher les mêmes données, ce qui permet de diversifier l'expérience d'affichage pour les utilisateurs. Le système comprend un premier dispositif d'affichage et un second dispositif d'affichage, et le premier dispositif d'affichage et le second dispositif d'affichage sont en liaison de communication. Le premier dispositif d'affichage comprend un premier écran et un premier processeur. Le premier processeur est configuré pour : recevoir une instruction de partage déclenchée par un utilisateur, déterminer des premières données manuscrites correspondant à l'instruction de partage et envoyer au second dispositif d'affichage les premières données manuscrites, les premières données manuscrites étant les données manuscrites en cours d'affichage sur le premier dispositif d'affichage. Le second dispositif d'affichage comprend un second écran et un second processeur, et le second processeur est configuré pour : recevoir les premières données manuscrites et amener le second écran à afficher les premières données manuscrites.
PCT/CN2022/122798 2022-09-29 2022-09-29 Procédé d'affichage de partage de données et système d'affichage intelligent WO2024065449A1 (fr)

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CN114442969A (zh) * 2020-10-30 2022-05-06 华为技术有限公司 一种设备间屏幕协同方法及设备
CN114647390A (zh) * 2020-12-21 2022-06-21 华为技术有限公司 一种增强的屏幕共享方法和系统、电子设备
CN114760347A (zh) * 2020-12-29 2022-07-15 中兴通讯股份有限公司 一种桌面共享的方法、终端及计算机可读存储介质
CN115016697A (zh) * 2021-09-08 2022-09-06 荣耀终端有限公司 投屏方法、计算机设备、可读存储介质和程序产品
US20220300239A1 (en) * 2021-03-16 2022-09-22 Daiki NAKAMURA Screen sharing system, screen sharing method, and display apparatus

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CN110609654A (zh) * 2019-08-14 2019-12-24 广州视源电子科技股份有限公司 数据同步显示方法、装置、设备以及远程会议系统
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