CN115623069A - Method and device for multi-screen projection - Google Patents

Abstract

The embodiment of the present application discloses a multi-screen projection method and device, which are applied to a wireless fidelity WiFi transceiver, wherein the method includes: when there is no projection content on the first display device and the second display device, receiving The target data sent by the terminal, wherein the terminal, the first display device, and the second display device have joined the wireless local area network formed by the wireless fidelity WiFi transceiver, and the target data includes the first screen to be projected data and second screen-to-be-projected data, the content of the first screen-to-be-projected data is static graphic content or dynamic video content, and the content of the second screen-to-be-projected data is the dynamic video content; A display device sends the decoded first screen-to-be-projected data, and sends the decoded second screen-to-be-projected data to the second display device. The embodiment of the present application can increase the bandwidth, and improve the resolution and frame rate of video data projection.

Description

Method and device for multi-screen projection

technical field

The present application relates to communication technology, which is applied to the Internet, big data and other fields, and in particular relates to a multi-screen projection method and device.

Background technique

At present, most of the video projection parameters are 4K/30 frames, which makes the projection quality not high, and in the conference and other scenarios, the size of the conference room projection equipment (TV, projector) is also getting larger and larger, and most of them have reached up to 4K resolution. However, when low-resolution and large-size display screens are combined, the picture quality will be degraded twice. In addition, in scenarios such as conferences, users may also need to cast from multiple screens. Therefore, when casting, not only the quality of the screen when there is video to be cast, but also the wireless fidelity WiFi Transceiver power consumption and processing efficiency issues.

Contents of the invention

Embodiments of the present application provide a method and device for multi-screen projection, which can increase the bandwidth and improve the resolution and frame rate of video data projection.

In the first aspect, the embodiment of the present application provides a multi-screen projection method, which is applied to a wireless fidelity WiFi transceiver, including:

In the case that there is no screen-casting content on the first display device and the second display device, the target data sent by the terminal is received, wherein the terminal, the first display device and the second display device add the A wireless local area network formed by a wireless fidelity WiFi transceiver, the target data includes the first data to be projected and the second data to be projected, and the content of the first data to be projected is static graphic content or dynamic video content, The content of the second screen-to-be-projected data is the dynamic video content, and the target data carries the identification number for projecting the first screen-to-be-projected data on the first display device, and carries the The number identification of the second screen-to-be-projected data projected on the second display device;

Sending the decoded first screen-to-be-projected data to the first display device, and sending the decoded second screen-to-be-projected data to the second display device.

In the existing technology, the current projection parameters for video are mostly 4K/30 frames, which makes the projection quality not high, and in scenarios such as conferences, users may also have the requirement of multi-screen projection. This application is aimed at the situation where there is a need for multi-screen projection. When there is no projection content on the first display device and the second display device, the wireless fidelity WiFi transceiver receives the target data sent by the terminal, wherein the target data Including the first data to be projected whose content is static graphic content or dynamic video content, and the second data to be projected whose content is dynamic video content, the target data carries the first data to be projected to the screen The number identification of the first display device, and the number identification carrying the second data to be projected on the second display device; finally, the decoded first data to be projected is sent to the first display device, and Send the decoded second screen-to-be-projected data to the second display device. This solution can improve the resolution and frame rate of video data projection.

In a possible implementation manner, in the case that there is no screen-casting content on the first display device and the second display device, after receiving the target data sent by the terminal, the sending of the decoding information to the first display device Before the first screen-to-be-projected data after decoding, and before sending the decoded second screen-to-be-projected data to the second display device, it also includes:

In the case where the content of the first screen-to-be-projected data and the content of the second screen-to-be-projected data are both the dynamic video content, converting the first screen-to-be-projected data into a protocol format of the USB protocol The first encoded data, and converting the second data to be projected into the second encoded data whose protocol format is the USB protocol;

Decoding the first coded data by using the computer accessory UGA to obtain the decoded first screen-to-be-projected data;

The UGA is used to decode the second coded data to obtain the decoded second screen-to-be-projected data.

In the above method, both the content of the first data to be projected and the content of the second data to be projected are dynamic video contents (for example, the content of the first data to be projected is the video "Design 1", the second When the content of the data to be projected is the video "Design Scheme 2"), the wireless fidelity WiFi transceiver can first convert the first data to be projected (video "Design Scheme 1") into the first data whose protocol format is the USB protocol. One encoded data, and convert the second data to be projected (video "Design Scheme 2") into the second encoded data whose protocol format is the USB protocol; then decode the first encoded data by UGA to obtain the decoded first The data to be projected (video "Design Scheme 1"), and the second encoded data is decoded by UGA to obtain the decoded second data to be projected (video "Design Scheme 2"). This solution decodes the encoded data based on UGA, and can connect multiple display devices through the USB interface of the host computer, and realize the display setting of each display device.

In another possible implementation manner, in the case that there is no screen-casting content on the first display device and the second display device, after receiving the target data sent by the terminal, the sending The decoded first screen-to-be-projected data, and before sending the decoded second screen-to-be-projected data to the second display device, further include:

When the content of the first data to be projected is the static graphic content, and the content of the second data to be projected is dynamic video content, converting the first data to be projected into a protocol The format is the first encoded data of WiFi protocol;

Decoding the first coded data according to a preset decoding method to obtain the decoded first screen-to-be-projected data;

Converting the second screen-to-be-projected data into the second coded data whose protocol format is the USB protocol;

The UGA is used to decode the second coded data to obtain the decoded second screen-to-be-projected data.

In the above method, when the content of the first data to be projected is static graphic content, and the content of the second data to be projected is dynamic video content, the wireless fidelity WiFi transceiver can transfer the first screen to be projected to The data is converted into the first coded data whose protocol format is the WiFi protocol, and then the first coded data is decoded according to a preset decoding method to obtain the decoded first screen-to-be-projected data. Then convert the second screen-to-be-projected data into second coded data whose protocol format is the USB protocol, and decode the second coded data through UGA to obtain decoded second screen-to-be-projected data. This solution uses different methods to specifically encode and decode the first data to be projected and the second data to be projected, which can effectively improve the processing efficiency of video data projection.

In yet another possible implementation manner, it also includes:

In a case where the screen-casting content exists on the first display device and the screen-casting content does not exist on the second display device, determining that the first screen-to-be-projected screen exists on the first display device data;

Detecting whether the first data to be projected needs to be adjusted;

If adjustment is not required, receiving the second screen-to-be-projected data sent by the terminal.

In the above method, when there is screen-casting content on the first display device and no screen-casting content exists on the second display device, if the Wireless Fidelity WiFi transceiver determines that the screen-casting content existing on the first display device is The first data to be projected, the wireless fidelity WiFi transceiver can further detect whether the user has adjusted the first data to be projected on the terminal, if it is detected that the user has not adjusted the first data to be projected on the terminal Adjustment is made, that is, when the first screen-to-be-projected data remains unchanged, the Wi-Fi WiFi transceiver only needs to receive the second screen-to-be-projected data sent by the terminal. In this solution, when there is projection content on the first display device and there is no projection content on the second display device, by detecting whether the projection content on the first display device needs to be adjusted, the wireless fidelity WiFi transceiver It can receive the target data sent by the terminal in a targeted manner, and ultimately improve the processing efficiency of the projection data and effectively save resources.

In yet another possible implementation manner, after sending the decoded first screen-to-be-projected data to the first display device and sending the decoded second screen-to-be-projected data to the second display device, Also includes:

If it is detected that the second screen to be projected data on the second display device is interrupted, a request message is sent to the terminal, where the request message is used to request the terminal to send the second screen to be projected The source address of the data, the source address includes one or more of the name of the second data to be projected and the serial number of the episode;

receiving the source address of the second screen-to-be-projected data sent by the terminal;

downloading the second screen-to-be-projected data according to the source address;

Sending the second screen-to-be-projected data of the source address to the second display device.

In the above method, after the wireless fidelity WiFi transceiver sends the decoded first screen-to-be-projected data to the first display device, and sends the decoded second screen-to-be-projected data to the second display device, it may further Detect whether the second screen-to-be-projected data on the second display device is played normally, and if it is detected that the playback of the second screen-to-be-projected data is interrupted, the terminal may be requested to send the source address of the second screen-to-be-projected data, wherein the source address includes One or more of the name of the second screen data to be projected, the serial number of the episode, and then the wireless fidelity WiFi transceiver can download the data according to one or more of the name of the second data to be screened, the serial number of the drama The second screen-to-be-projected data at the source address, and finally send the second screen-to-be-projected data at the source address to the second display device. This solution can download the second data to be projected according to the source address in time when the playback of the second data to be projected is interrupted due to an abnormal situation, so as to connect the second data to be projected when a preset abnormal situation occurs, and improve video quality. The fluency of playback ensures the user's viewing experience.

In a second aspect, an embodiment of the present application provides a multi-screen projection device, the device includes a receiving unit and a sending unit, and the device is used to implement the method described in the first aspect or any possible implementation manner of the first aspect.

It should be noted that the processor included in the device described in the second aspect above may be a processor specially used to execute these methods (referred to as a dedicated processor for easy distinction), or it may execute these methods by calling a computer program. A handler for a method, such as a generic handler. Optionally, at least one processor may also include both a special-purpose processor and a general-purpose processor.

Optionally, the above computer programs may be stored in memory. Exemplarily, the memory may be a non-transitory (non-transitory) memory, such as a read-only memory (Read Only Memory, ROM), which may be integrated with the processor on the same device, or may be separately disposed on different devices , the embodiment of the present application does not limit the type of the memory and the arrangement of the memory and the processor.

In a possible implementation manner, the at least one storage device is located outside the device.

In yet another possible implementation manner, the at least one storage device is located within the device.

In yet another possible implementation manner, part of the memory of the at least one memory is located inside the device, and another part of the memory is located outside the device.

In this application, the processor and the memory may also be integrated into one device, that is, the processor and the memory may also be integrated together.

In a third aspect, an embodiment of the present application provides a wireless fidelity WiFi transceiver, the wireless fidelity WiFi transceiver includes a processor and a memory; a computer program is stored in the memory; when the processor executes the computer program, the computing device executes The method described in any one of the first aspect or the first aspect.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are run on at least one processor, the aforementioned first to fourth aspects are implemented any of the methods described.

In a fifth aspect, the present application provides a computer program product, the computer program product includes computer instructions, and when the instructions are run on at least one processor, the method described in any one of the aforementioned first to fourth aspects is implemented. The computer program product may be a software installation package, and the computer program product may be downloaded and executed on a computing device if the foregoing method needs to be used.

For the beneficial effects of the technical methods provided in the second to fifth aspects of the present application, reference may be made to the beneficial effects of the technical solution in the first aspect, which will not be repeated here.

Description of drawings

The drawings that need to be used in the description of the embodiments will be briefly introduced below.

FIG. 1 is an application scene diagram of a multi-screen projection provided by an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a multi-screen projection system provided by an embodiment of the present application;

FIG. 3 is a schematic flowchart of a multi-screen projection method provided in an embodiment of the present application;

FIG. 4 is a schematic diagram of a terminal sending target data to a wireless fidelity WiFi transceiver provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a terminal sending second data to be projected to a Wi-Fi transceiver provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a multi-screen projection device 60 provided in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a wireless fidelity WiFi transceiver 70 provided by an embodiment of the present application.

detailed description

Embodiments of the present application are described below with reference to the drawings in the embodiments of the present application.

For ease of understanding, a brief introduction to the technical terms involved in the embodiments of the present application is given first.

1.UGA

UGA is a hardware device that connects to the display interface through the USB interface released by wavlink (Ruiyin) company in the world in 2003. Its full English name is USB Graphic Adapter, referred to as USB display card, or USB external (multi-function )graphics card. UGA adopts USB input, VGA/DVI/HDMI interface output. Through the host USB interface, the audio/video signal is transmitted to the display (VGA/DVI/HDMI and other interfaces). Through UGA, users can connect multiple monitors through the USB interface of the host computer, and realize display settings for each monitor. display), traffic management (single screen is decomposed into multi-screen display), large-screen advertisement (single-screen splicing into large-screen display), game player (power leveling/multi-screen display), personal multi-screen office, drawing and drawing multi-screen splicing display , Build Microsoft Windows Multipoint Server zero-client system, business hall/POS machine and other dual-display occasions, etc.

Please refer to FIG. 1. FIG. 1 schematically shows an application scenario diagram of a multi-screen projection provided by an embodiment of the present application. In FIG. ₁ , when the terminal displays the content of the first data to be projected ( For example, the first screen data to be projected is static graphic content, and the specific display content is: "Project Analysis Report" PPT page ₁ ) is projected to the first display device A1, and the _second screen to be projected is displayed according to the number identification A2 After the content displayed on the screen data (for example, the second data to be projected is dynamic video content, and the specific display content is: video "Design Scheme 1") is projected to the second display device A ₂ , the current first display device A ₁ And the _second display device A2 also correspondingly displays the content of the projected screen on the terminal (that is, the display content on the _first display device A1 is: "Project Analysis Report" PPT page 1; on the _second display device A2 The displayed content is: the video "Design Scheme 1"), that is, the final presented effect is that the content displayed by the terminal, the first display device, and the second display device are consistent. The embodiment of the present application will focus on the scenario of multi-screen projection in the following description.

Please refer to FIG. 2. FIG. 2 is a schematic diagram of the architecture of a multi-screen projection system provided by an embodiment of the present application. The system includes a wireless fidelity WiFi transceiver 201, a terminal 202, a first display device 203, and a second display device 204 .

It should be noted that the terminal 202, the first display device 203 and the second display device 204 have all joined the wireless local area network formed by the WiFi transceiver 201, that is, the WiFi transceiver 201, the terminal 202, and the first display device 203 and the second display device 204 perform data transmission and interaction under the same wireless local area network.

The wireless fidelity WiFi transceiver 201 is a core device of a wireless network card. The wireless network card is used for the terminal 202 to connect to the wireless network, and its function is to send and receive wireless signals for data transmission. The wireless fidelity WiFi transceiver is used for receiving and transmitting wireless signals. The wireless fidelity WiFi transceiver can be a wireless router, or a wireless network card, and a notebook computer can also be used as a wireless fidelity WiFi transceiver. In the embodiment of the present application, when there is no projected screen content on the first display device 203 and the second display device 204, the Wireless Fidelity WiFi transceiver 201 receives the target data sent by the terminal 202, wherein the target data includes The first data to be projected whose content is static graphic content or dynamic video content, and the second data to be projected whose content is dynamic video content, the target data carries the first data to be projected to the second screen A number identification of the display device 203, and carrying the number identification of projecting the second screen-to-be-projected data on the second display device 204; finally sending the decoded first screen-to-be-projected data to the first display device 203 , and the decoded second screen-to-be-projected data. The wireless fidelity WiFi transceiver 201 provides application services for the terminal 202 , the first display device 203 and the second display device 204 .

The terminal 202 is a device having processing capability and data transceiving capability. The terminal 202 may be a computer, a notebook computer, a tablet computer, a handheld computer, a desktop computer, a diagnostic instrument, a mobile phone, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a netbook, a personal digital assistant (Personal Digital Assistant, PDA), etc. In the embodiment of the present application, the terminal 202 is an application program (Application, APP). The terminal 202 is used to send target data to the Wi-Fi transceiver 201 .

The first display device 203 and the second display device 204 may be devices with a display function such as a tablet, a rotatable smart TV, and the like. In this embodiment of the application, the first display device 203 is used to receive the decoded first data to be projected from the wireless fidelity WiFi transceiver 201 and display the first data to be projected, and the second display device 204 is used to Receive the decoded second screen-to-be-projected data sent by the WiFi transceiver 201 and display the second screen-to-be-projected data.

The method in the embodiment of the present application will be described in detail below.

Please refer to FIG. 3 . FIG. 3 is a schematic flowchart of a multi-screen projection method provided by an embodiment of the present application. Optionally, this method may apply the system described in FIG. 2 .

The multi-screen projection method as shown in FIG. 3 includes at least step S301 to step S302.

Step S301: In the case that there is no projected content on the first display device and the second display device, the WiFi transceiver receives the target data sent by the terminal.

Among them, the terminal, the first display device and the second display device have joined the wireless local area network formed by the wireless fidelity WiFi transceiver, and the target data includes the first data to be projected and the second data to be projected, and the first data to be projected The content is static graphic content or dynamic video content, and the content of the second data to be projected is dynamic video content. The second screen-to-be-projected data is projected on the second display device to identify the serial number. It should be noted that the absence of projected content on the first display device and the second display device indicates that the wireless fidelity WiFi transceiver does not detect the existence of dynamic video content or static graphic content on the first display device and the second display device In this case, the target data sent by the terminal can be directly received, and then the target data can be projected onto the first display device and the second display device.

Specifically, there are many sources for the wireless fidelity WiFi transceiver to receive the target data sent by the terminal. For example, the user can send target data to the wireless fidelity WiFi transceiver based on the platform of the terminal, and the platform can be an APP, a cloud platform, or a web page, etc. . After the terminal, the first display device and the second display device join the wireless local area network formed by the Wi-Fi WiFi transceiver, the Wi-Fi WiFi transceiver can first determine whether there is screen projection content on the first display device and the second display device , if it is determined that there is no screen-casting content on the first display device and the second display device, the terminal may be requested to send the first screen-to-be-projected data and the second screen-to-be-projected data, and accordingly, the terminal may determine the first The screen-to-be-projected data and the second screen-to-be-projected data are sent to the Wi-Fi WiFi transceiver, and then the Wi-Fi WiFi transceiver receives the first screen-to-be-projected data and the second screen-to-be-projected data correspondingly. For example, FIG. 4 is a schematic diagram of a terminal sending target data to a Wi-Fi transceiver provided by an embodiment of the present application. As shown in FIG. 4, if the terminal, the first display device, and the second display device join the wireless The wireless LAN "Ming-8826" established by the fidelity WiFi transceiver, under the same LAN, if the wireless fidelity WiFi transceiver determines that there is no projection content on the first display device and the second display device, that is, the first display device When A ₁ and the second display device A ₂ are in an idle state, the requesting terminal sends the first screen-to-be-projected data and the second screen-to-be-projected data to the Wi-Fi transceiver. Correspondingly, the terminal sends to the wireless fidelity WiFi transceiver the _first screen-to-be-projected data with the serial number identified as A1 correspondingly projected on the _first display device A1 (wherein, the content of the first screen-to-be-projected data can be It is the first page of the "Project Analysis Report" PPT, or the video "Design Scheme 1"), and carries the second data to be projected with the serial number identified as A2 corresponding to the _second display device A2 ₍ wherein, the The content of the second screen-to-be-projected data may be the video "Design Scheme 2"). For another example, the user selects the first data to be projected and the second data to be projected from the files stored locally, or downloads the first data to be projected and the second data to be projected from the cloud, or downloads the first data to be projected and the second data to be projected from the cloud, or downloads the data from the database of the platform Select the first data to be projected and the second data to be projected in (such as 666 Movies and Television), and then send the first data to be projected and the second data to be projected to the wireless fidelity WiFi transceiver. Correspondingly, the wireless fidelity WiFi transceiver receives the target data sent by the terminal (that is, the target data is the first data to be projected and the second data to be projected).

Further, after step S301, the Wi-Fi transceiver needs to encode and decode the target data sent by the terminal, so as to obtain decoded first data to be projected and decoded second data to be projected. It should be noted that the content of the first data to be projected in the target data may be static graphic content or dynamic video content, and the content of the second data to be projected may be dynamic video content. Specifically, in the case that there is no projection content on the first display device and the second display device, the wireless fidelity WiFi transceiver can receive the first data to be projected that the content is static graphic content sent by the terminal, and the content It is the second screen-to-be-projected data of the dynamic video content, or the first data to-be-screen-to-be-projected and the second screen-to-be-projected data whose contents are all dynamic video content sent by the receiving terminal. These two situations are described in detail below.

Case 1, when both the content of the first data to be projected and the content of the second data to be projected are dynamic video content (for example, the content of the first data to be projected is the video "Design 1", and the content of the second data to be projected When the content of the screen data is the video "Design Scheme 2"), the wireless fidelity WiFi transceiver can first convert the first screen data to be projected (video "Design Scheme 1") into the first code whose protocol format is the USB protocol data, and convert the second data to be projected (video "Design Scheme 2") into the second encoded data whose protocol format is the USB protocol; then decode the first encoded data by UGA to obtain the first decoded data to be projected screen data (video "Design Scheme 1"), and decode the second encoded data through UGA to obtain the decoded second screen data to be projected (video "Design Scheme 2"). This solution decodes the encoded data based on UGA, and can connect multiple display devices through the USB interface of the host computer, and realize the display setting of each display device.

In the second case, the content of the first data to be projected is static graphic content (for example, the content of the first data to be projected is the first page of the "Project Analysis Report" PPT), and the content of the second data to be projected is In the case of dynamic video content (for example, the content of the second data to be projected is the video "Design Scheme 2"), the wireless fidelity WiFi transceiver can first upload the first data to be projected ("Project Analysis Report" PPT No. 1 page) into the first coded data whose protocol format is the WiFi protocol; then decode the first coded data according to a preset decoding method (wherein, the preset decoding method can be unescape decoding, decode URI or decode URIComponent decoding), and obtain The decoded first screen-to-be-projected data ("Project Analysis Report" PPT page 1); and convert the second screen-to-be-projected data (video "Design Scheme 2") into the second coded data whose protocol format is the USB protocol; Finally, the second encoded data is decoded by UGA to obtain the decoded second data to be projected (video "Design Scheme 2"). In this solution, since the content of the first data to be projected is static graphic content (page 1 of PPT "Project Analysis Report"), and the content of the second data to be projected is dynamic video content (video "Design Scheme 2 "), comparing the two, the frame rate requirements for the video "Design Scheme 2" are higher than the requirements for the PPT of the "Project Analysis Report". When the frame rate is higher, the playback of the video "Design Scheme 2" is faster Smooth, so the wireless fidelity WiFi transceiver can convert the video "Design Scheme 2" into the second encoded data whose protocol format is the USB protocol, and then decode the second encoded data through UGA to obtain the decoded video "Design Scheme 2 ". Since the content of the first data to be projected is static graphic content ("Project Analysis Report" PPT page 1), its frame rate requirement is lower than that of video, so the wireless fidelity WiFi transceiver can Convert the first page of the "Project Analysis Report" PPT into the first coded data whose protocol format is the WiFi protocol, and then decode the first coded data through the preset decoding method to obtain the decoded "Project Analysis Report" PPT No. 1 Page. This solution uses different methods to specifically encode and decode the first data to be projected and the second data to be projected, which can effectively improve the processing efficiency of video data projection.

Step S302: the wireless fidelity WiFi transceiver sends the decoded first screen-to-be-projected data to the first display device, and sends the decoded second screen-to-be-projected data to the second display device.

Specifically, the first display device and the second display device may automatically receive the decoded first screen-to-be-projected data and the decoded second screen-to-be-projected data sent by the Wi-Fi transceiver, or the first display device may The second display device outputs the decoded first screen-to-be-projected data and the decoded second screen-to-be-projected data to the user, and the user can compare the decoded first screen-to-be-projected data and the decoded second screen-to-be-projected data Perform operations, such as confirming the receiving operation, canceling receiving, etc., wherein, if the first display device and the second display device receive the confirming receiving operation input by the user, then receive the decoded first to-be-projected image sent by the Wireless Fidelity WiFi transceiver. screen data and the decoded second screen data to be projected, if the first display device and the second display device receive the cancel receiving operation input by the user, the decoded first screen data to be projected sent by the wireless fidelity WiFi transceiver will not be received. screen data and the decoded second screen data to be projected.

Optionally, after the wireless fidelity WiFi transceiver sends the decoded first screen-to-be-projected data to the first display device, and sends the decoded second screen-to-be-projected data to the second display device, if the second If the second data to be projected on the display device is interrupted, a request message is sent to the terminal, wherein the request message is used to request the terminal to send the source address of the second data to be projected, and the source address includes the name of the second data to be projected, One or more items in the serial number of the episode, and after the terminal sends the source address of the second data to be projected to the wireless fidelity WiFi transceiver, the wireless fidelity WiFi transceiver correspondingly receives the second data to be projected to be sent by the terminal The source address; then download the second screen-to-be-projected data according to the source address; finally send the second screen-to-be-projected data of the source address to the second display device.

Specifically, for example, the wireless fidelity WiFi transceiver sends the decoded first data to be projected to the first display device (video "Design Scheme 1") and sends the decoded second data to be projected to the second display device. After projecting the screen data (video "Design Scheme 2"), it is also possible to detect whether the second screen data to be projected (video "Design Scheme 2") on the second display device is played normally. If the playback of the data to be projected (video "Design 2") is interrupted, the terminal can be requested to send the source address of the second data to be projected (video "Design 2"), and then the wireless fidelity WiFi transceiver can follow the second The name of the data to be projected (video "Design Scheme 2") downloads the second data to be projected from the source address, and finally sends the second data to be projected from the source address to the second display device (video "Design Scheme 2") . This solution can download the second data to be projected according to the source address in time when the playback of the second data to be projected is interrupted due to an abnormal situation, so as to connect the second data to be projected when a preset abnormal situation occurs, and improve video quality. The fluency of playback ensures the user's viewing experience.

Optionally, in the case that there is screen-casting content on the first display device and there is no screen-casting content on the second display device, the wireless fidelity WiFi transceiver determines that there is first screen-to-be-cast data on the first display device Afterwards, it may be detected whether the first screen-to-be-projected data needs to be adjusted; if no adjustment is required, the second screen-to-be-projected data sent by the terminal is received.

Specifically, FIG. 5 is a schematic diagram of a terminal sending the second screen data to be projected to the Wi-Fi transceiver provided by the embodiment of the present application. As shown in FIG. 5, there is screen projection content on the _first display device A1 , and there is no projected content on the _second display device A2, if the Wi-Fi transceiver determines that the projected content on the _first display device A1 is the first data to be projected (such as "Project Analysis Report" PPT page 1), the wireless fidelity WiFi transceiver can further detect whether the user has adjusted the first data to be projected on the terminal (for example, the wireless fidelity WiFi transceiver can detect whether the user has adjusted the project analysis Report" PPT page 1 is switched to another page), if it is detected that the user has not adjusted the first data to be projected on the terminal, that is, the first data to be projected has not been changed, and it is still "Project Analysis Report" 》When the PPT is on page 1, the terminal only needs to send the second data to be projected to the WiFi transceiver. Correspondingly, the WiFi transceiver receives the second data to be projected sent by the terminal (such as the video " Design Scheme 2"). In this solution, when there is projection content on the first display device and there is no projection content on the second display device, by detecting whether the projection content on the first display device needs to be adjusted, the wireless fidelity WiFi transceiver It can receive the target data sent by the terminal in a targeted manner, and ultimately improve the processing efficiency of the projection data and effectively save resources.

Optionally, in the case that there is screen-casting content on both the first display device and the second display device, the wireless fidelity WiFi transceiver may detect the screen-casting content of the first display device and the second display device, for example, The Wi-Fi transceiver determines that the projected content on the first display device is the video "Design 1", and the projected content on the second display device is the video "Design 2". If the Wi-Fi transceiver detects When the playback time stamp of the video "Design Scheme 2" is 11 minutes and 45 seconds, a preset abnormal situation occurs (such as a black screen of the terminal or an event of an incoming call), which blocks the video stream of the video "Design Scheme 2" , the wireless fidelity WiFi transceiver can first send a request message to the terminal, the request message can be displayed on the terminal in a pop-up window and the request message is specifically used to obtain the authorization of the terminal, so that the terminal sends a request message to the wireless fidelity WiFi The transceiver sends the source address of the second data to be projected. If the terminal confirms to send the source address to the Wi-Fi transceiver, the Wi-Fi transceiver receives the source address accordingly and downloads the full-time video according to the source address. "Design Scheme 2", then determine the node where the playback interruption position is the 11th minute and 45 seconds according to the playing time stamp of the video "Design Scheme 2", and then search for the link with the first video "Design Scheme 2" from the downloaded full-length video "Design Scheme 2" The video data corresponding to the node at 11 minutes and 45 seconds is finally sent to the second display device correspondingly to the video data corresponding to the node at 11 minutes and 45 seconds. This solution is based on the fact that when the video stream of the projected screen content existing on the first display device and the second display device is interrupted, the wireless fidelity WiFi transceiver can send corresponding information of the playback interruption position to the first display device and the second display device in time. Video data, so that after the video stream of the screen-casting content existing on the first display device and the second display device is interrupted, the video data of the source address can be connected with the video data of the screen-casting content before the interruption, ensuring that the user When watching the mirrored video, the video can be played smoothly without being disturbed by preset abnormal conditions, which improves the user's viewing experience.

In the existing technology, the current projection parameters for video are mostly 4K/30 frames, which makes the projection quality not high, and in scenarios such as conferences, users may also have the requirement of multi-screen projection. This application is aimed at the situation where there is a need for multi-screen projection. When there is no projection content on the first display device and the second display device, the wireless fidelity WiFi transceiver receives the target data sent by the terminal, wherein the target data Including the first data to be projected whose content is static graphic content or dynamic video content, and the second data to be projected whose content is dynamic video content, the target data carries the first data to be projected to the screen The number identification of the first display device, and the number identification carrying the second data to be projected on the second display device; finally, the decoded first data to be projected is sent to the first display device, and Send the decoded second screen-to-be-projected data to the second display device. This solution can improve the resolution and frame rate of video data projection.

The method of the embodiment of the present application has been described in detail above, and the device of the embodiment of the present application is provided below.

It can be understood that the multiple devices provided in the embodiments of the present application, such as multi-screen projection devices, in order to realize the functions in the above method embodiments, include corresponding hardware structures, software modules, or hardware structures and Combination of software structures, etc.

Those skilled in the art should easily realize that the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software in combination with the example units and algorithm steps described in the embodiments disclosed herein. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different device implementations in different usage scenarios to implement the aforementioned method embodiments, and the different implementations of devices should not be considered beyond the scope of the embodiments of the present application.

In this embodiment of the present application, the device may be divided into functional modules. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one functional module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic, and is only a logical function division, and there may be other division methods in actual implementation.

For example, in the case of dividing each functional module of the device in an integrated manner, the present application exemplifies several possible processing devices.

Please refer to FIG. 6. FIG. 6 is a schematic structural diagram of a multi-screen projection device 60 provided by an embodiment of the present application. The multi-screen projection device 60 can be the wireless fidelity WiFi transceiver shown in FIG. 2 or the wireless A device in a fidelity WiFi transceiver, such as a chip, software module, integrated circuit, etc. The multi-screen projection device 60 is used to implement the aforementioned multi-screen projection method, such as the multi-screen projection method described in FIG. 3 .

In a possible implementation manner, the multi-screen projection device 60 may include a receiving unit 601 and a sending unit 602 .

In the case that there is no screen projection content on the first display device and the second display device, the receiving unit 601 is configured to receive the target data sent by the terminal, wherein the terminal, the first display device and the The second display device has joined the wireless local area network formed by the wireless fidelity WiFi transceiver, the target data includes the first data to be projected and the second data to be projected, and the content of the first data to be projected is static Graphic content or dynamic video content, the content of the second screen-to-be-projected data is the dynamic video content, and the target data carries the information for projecting the first screen-to-be-projected data to the first display device A serial number identification, and carrying the serial number identification for projecting the second screen-to-be-projected data on the second display device;

The sending unit 602 is configured to send the decoded first screen-to-be-projected data to the first display device, and send the decoded second screen-to-be-projected data to the second display device.

In the existing technology, the current projection parameters for video are mostly 4K/30 frames, which makes the projection quality not high, and in scenarios such as conferences, users may also have the requirement of multi-screen projection. This application is aimed at the situation where there is a need for multi-screen projection. When there is no projection content on the first display device and the second display device, the wireless fidelity WiFi transceiver receives the target data sent by the terminal, wherein the target data Including the first data to be projected whose content is static graphic content or dynamic video content, and the second data to be projected whose content is dynamic video content, the target data carries the first data to be projected to the screen The number identification of the first display device, and the number identification carrying the second data to be projected on the second display device; finally, the decoded first data to be projected is sent to the first display device, and The decoded second screen data to be projected. This solution can improve the resolution and frame rate of video data projection.

In another possible implementation manner, a conversion unit and a decoding unit are also included;

In the case where the content of the first screen-to-be-projected data and the second screen-to-be-projected data are both the dynamic video content, the conversion unit is configured to convert the first screen-to-be-projected data It is the first coded data whose protocol format is the USB protocol, and converting the second data to be projected into the second coded data whose protocol format is the USB protocol;

The decoding unit is used to decode the first coded data through the computer accessory UGA to obtain the decoded first data to be projected; it is also used to decode the second coded data through the UGA , to obtain the decoded second data to be projected.

In this embodiment of the application, both the content of the first data to be projected and the content of the second data to be projected are dynamic video contents (for example, the content of the first data to be projected is the video "Design 1", the When the content of the second data to be projected is the video "Design 2"), the wireless fidelity WiFi transceiver can first convert the first data to be projected (video "Design 1") into a USB protocol The first encoded data, and the second data to be projected (video "Design Scheme 2") is converted into the second encoded data whose protocol format is the USB protocol; then the first encoded data is decoded by UGA to obtain the decoded The first screen-to-be-projected data (video "Design Scheme 1"), and the second coded data are decoded by UGA to obtain the decoded second screen-to-be-projected data (video "Design Scheme 2"). This solution decodes the encoded data based on UGA, and can connect multiple display devices through the USB interface of the host computer, and realize the display setting of each display device.

In yet another possible implementation manner, when the content of the first data to be projected is the static graphic content, and the content of the second data to be projected is dynamic video content, the converting The unit is also used to convert the first screen-to-be-projected data into first coded data whose protocol format is the WiFi protocol;

The decoding unit is further configured to decode the first encoded data according to a preset decoding method to obtain decoded first data to be projected.

The converting unit is further configured to convert the second screen-to-be-projected data into second coded data whose protocol format is the USB protocol;

The decoding unit is further configured to decode the second coded data through the UGA to obtain decoded second data to be projected.

In the embodiment of the present application, when the content of the first data to be projected is static graphic content, and the content of the second data to be projected is dynamic video content, the wireless fidelity WiFi transceiver can The projected screen data is converted into the first coded data whose protocol format is the WiFi protocol, and then the first coded data is decoded according to a preset decoding method to obtain the decoded first screen-to-be-projected data. Then convert the second screen-to-be-projected data into second coded data whose protocol format is the USB protocol, and decode the second coded data through UGA to obtain decoded second screen-to-be-projected data. This solution uses different methods to specifically encode and decode the first data to be projected and the second data to be projected, which can effectively improve the processing efficiency of video data projection.

In yet another possible implementation manner, a determination unit and a detection unit are also included;

In the case that the screen-casting content exists on the first display device and the screen-casting content does not exist on the second display device, the determining unit is configured to determine that the screen-casting content exists on the first display device The first screen-to-be-projected data;

The detection unit is configured to detect whether the first data to be projected needs to be adjusted;

If adjustment is not required, the receiving unit 601 is further configured to receive the second screen-to-be-projected data sent by the terminal.

In the embodiment of the present application, in the case that there is screen-casting content on the first display device and there is no screen-casting content on the second display device, if the Wireless Fidelity WiFi transceiver determines that the screen-casting content existing on the first display device If the content is the first data to be projected, the wireless fidelity WiFi transceiver can further detect whether the user has adjusted the first data to be projected on the terminal, if it is detected that the user has not adjusted the first data to be projected on the terminal The screen data is adjusted, that is, when the first screen data to be projected remains unchanged, the WiFi transceiver only needs to receive the second screen data to be projected sent by the terminal. In this solution, when there is projection content on the first display device and there is no projection content on the second display device, by detecting whether the projection content on the first display device needs to be adjusted, the wireless fidelity WiFi transceiver It can receive the target data sent by the terminal in a targeted manner, and ultimately improve the processing efficiency of the projection data and effectively save resources.

In yet another possible implementation manner, a downloading unit is also included;

If it is detected that the second data to be projected on the second display device is interrupted, the sending unit 602 is further configured to send a request message to the terminal, where the request message is used to request the The terminal sends the source address of the second screen-to-be-projected data, where the source address includes one or more of the name of the second screen-to-be-projected data and the sequence number of the episode;

The receiving unit 601 is further configured to receive the source address of the second data to be projected sent by the terminal;

The downloading unit is configured to download the second screen-to-be-projected data according to the source address;

The sending unit 602 is further configured to send the second screen-to-be-projected data of the source address to the second display device.

In this embodiment of the application, after the wireless fidelity WiFi transceiver sends the decoded first screen-to-be-projected data and the decoded second screen-to-be-projected data to the first display device, it can also detect the Whether the second data to be projected is played normally, if it is detected that the playback of the second data to be projected is interrupted, the terminal may be requested to send the source address of the second data to be projected, wherein the source address includes the second data to be projected One or more of the name of the data to be projected, one or more of the serial number of the episode, and then the wireless fidelity WiFi transceiver can download the second waiting data of the source address according to one or more of the name of the second screen data to be projected and the serial number of the episode Screen projection data, and finally send the second data to be screen projection of the source address to the second display device. This solution can download the second data to be projected according to the source address in time when the playback of the second data to be projected is interrupted due to an abnormal situation, so as to connect the second data to be projected when a preset abnormal situation occurs, and improve video quality. The fluency of playback ensures the user's viewing experience.

Please refer to FIG. 7 . FIG. 7 is a schematic structural diagram of a wireless fidelity WiFi transceiver 70 provided by an embodiment of the present application, such as a chip, a software module, an integrated circuit, and the like. The wireless fidelity WiFi transceiver 70 may include at least one processor 701 . Optionally, at least one memory 703 may also be included. Further optionally, the wireless fidelity WiFi transceiver 70 may also include a communication interface 702 . Further optionally, a bus 704 may also be included, wherein the processor 701 , the communication interface 702 and the memory 703 are connected through the bus 704 .

Wherein, the processor 701 is a module for performing arithmetic operations and/or logic operations, and specifically may be a central processing unit (Central Processing Unit, CPU), a picture processor (Graphics Processing Unit, GPU), a microprocessor (Microprocessor Unit, MPU) ), Application Specific Integrated Circuit (ASIC), Field Programmable Logic Gate Array (Field Programmable Gate Array, FPGA), Complex Programmable Logic Device (Complex Programmable Logic Device, CPLD), coprocessor (assisting central processing unit complete corresponding processing and application), micro control unit (Microcontroller Unit, MCU) and other processing modules or a combination of more.

Communication interface 702 may be used to provide information input or output to the at least one processor. And/or, the communication interface 702 can be used to receive data sent from the outside and/or send data to the outside, and can be a wired link interface such as an Ethernet cable, or a wireless link (Wi-Fi, Bluetooth, general wireless transmission, vehicle short-range communication technology and other short-range wireless communication technologies, etc.) interface. Optionally, the communication interface 702 may further include a transmitter (such as a radio frequency transmitter, an antenna, etc.) or a receiver coupled with the interface.

The memory 703 is used to provide a storage space, in which data such as operating systems and computer programs can be stored. Memory 703 can be Random Access Memory (Random Access Memory, RAM), Read-only Memory (Read-only Memory, ROM), Erasable Programmable Read-only Memory (Erasable Programmable Read-onlyMemory, EPROM), or portable read-only memory One or more combinations of memory (Compact Disc Read-only Memory, CD-ROM) and the like.

At least one processor 701 in the wireless fidelity WiFi transceiver 70 is configured to execute the foregoing method, such as the method described in the embodiment shown in FIG. 3 .

Optionally, the processor 701 may be a processor dedicated to executing these methods (referred to as a dedicated processor for convenience), or a processor that executes these methods by invoking computer programs, such as a general-purpose processor. Optionally, at least one processor may also include both a special-purpose processor and a general-purpose processor. Optionally, in the case that the computing device includes at least one processor 701 , the above computer program may be stored in the memory 703 .

Optionally, at least one processor 701 in the wireless fidelity WiFi transceiver 70 is configured to execute calling computer instructions to perform the following operations:

In the case that there is no screen-casting content on the first display device and the second display device, the target data sent by the terminal is received, wherein the terminal, the first display device and the second display device add the A wireless local area network formed by a wireless fidelity WiFi transceiver, the target data includes the first data to be projected and the second data to be projected, and the content of the first data to be projected is static graphic content or dynamic video content, The content of the second screen-to-be-projected data is the dynamic video content, and the target data carries the identification number for projecting the first screen-to-be-projected data on the first display device, and carries the The number identification of the second screen-to-be-projected data projected on the second display device;

Sending the decoded first screen-to-be-projected data to the first display device, and sending the decoded second screen-to-be-projected data to the second display device.

In the existing technology, the current projection parameters for video are mostly 4K/30 frames, which makes the projection quality not high, and in scenarios such as conferences, users may also have the requirement of multi-screen projection. This application is aimed at the situation where there is a need for multi-screen projection. When there is no projection content on the first display device and the second display device, the wireless fidelity WiFi transceiver receives the target data sent by the terminal, wherein the target data Including the first data to be projected whose content is static graphic content or dynamic video content, and the second data to be projected whose content is dynamic video content, the target data carries the first data to be projected to the screen The number identification of the first display device, and the number identification carrying the second data to be projected on the second display device; finally, the decoded first data to be projected is sent to the first display device, and The decoded second screen data to be projected. This solution can improve the resolution and frame rate of video data projection.

Optionally, the processor 701 is further configured to:

In the case where the content of the first screen-to-be-projected data and the content of the second screen-to-be-projected data are both the dynamic video content, converting the first screen-to-be-projected data into a protocol format of the USB protocol The first encoded data, and converting the second data to be projected into the second encoded data whose protocol format is the USB protocol;

Decoding the first coded data by using the computer accessory UGA to obtain the decoded first screen-to-be-projected data;

The UGA is used to decode the second coded data to obtain the decoded second screen-to-be-projected data.

In this embodiment of the application, both the content of the first data to be projected and the content of the second data to be projected are dynamic video contents (for example, the content of the first data to be projected is the video "Design 1", the When the content of the second data to be projected is the video "Design 2"), the wireless fidelity WiFi transceiver can first convert the first data to be projected (video "Design 1") into a USB protocol The first encoded data, and the second data to be projected (video "Design Scheme 2") is converted into the second encoded data whose protocol format is the USB protocol; then the first encoded data is decoded by UGA to obtain the decoded The first screen-to-be-projected data (video "Design Scheme 1"), and the second coded data are decoded by UGA to obtain the decoded second screen-to-be-projected data (video "Design Scheme 2"). This solution decodes the encoded data based on UGA, and can connect multiple display devices through the USB interface of the host computer, and realize the display setting of each display device.

Optionally, the processor 701 is further configured to:

When the content of the first data to be projected is the static graphic content, and the content of the second data to be projected is dynamic video content, converting the first data to be projected into a protocol The format is the first encoded data of WiFi protocol;

Decoding the first coded data according to a preset decoding method to obtain the decoded first screen-to-be-projected data;

Converting the second screen-to-be-projected data into the second coded data whose protocol format is the USB protocol;

The UGA is used to decode the second coded data to obtain the decoded second screen-to-be-projected data.

In the embodiment of the present application, when the content of the first data to be projected is static graphic content, and the content of the second data to be projected is dynamic video content, the wireless fidelity WiFi transceiver can The projected screen data is converted into the first coded data whose protocol format is the WiFi protocol, and then the first coded data is decoded according to a preset decoding method to obtain the decoded first screen-to-be-projected data. Then convert the second screen-to-be-projected data into second coded data whose protocol format is the USB protocol, and decode the second coded data through UGA to obtain decoded second screen-to-be-projected data. This solution uses different methods to specifically encode and decode the first data to be projected and the second data to be projected, which can effectively improve the processing efficiency of video data projection.

Optionally, the processor 701 is further configured to:

In a case where the screen-casting content exists on the first display device and the screen-casting content does not exist on the second display device, determining that the first screen-to-be-projected screen exists on the first display device data;

Detecting whether the first data to be projected needs to be adjusted;

If adjustment is not required, receiving the second screen-to-be-projected data sent by the terminal.

In the embodiment of the present application, in the case that there is screen-casting content on the first display device and there is no screen-casting content on the second display device, if the Wireless Fidelity WiFi transceiver determines that the screen-casting content existing on the first display device If the content is the first data to be projected, the wireless fidelity WiFi transceiver can further detect whether the user has adjusted the first data to be projected on the terminal, if it is detected that the user has not adjusted the first data to be projected on the terminal The screen data is adjusted, that is, when the first screen data to be projected remains unchanged, the WiFi transceiver only needs to receive the second screen data to be projected sent by the terminal. In this solution, when there is projection content on the first display device and there is no projection content on the second display device, by detecting whether the projection content on the first display device needs to be adjusted, the wireless fidelity WiFi transceiver It can receive the target data sent by the terminal in a targeted manner, and ultimately improve the processing efficiency of the projection data and effectively save resources.

Optionally, the processor 701 is further configured to:

If it is detected that the second screen to be projected data on the second display device is interrupted, a request message is sent to the terminal, where the request message is used to request the terminal to send the second screen to be projected The source address of the data, the source address includes one or more of the name of the second data to be projected and the serial number of the episode;

receiving the source address of the second screen-to-be-projected data sent by the terminal;

downloading the second screen-to-be-projected data according to the source address;

Sending the second screen-to-be-projected data of the source address to the second display device.

In this embodiment of the application, after the wireless fidelity WiFi transceiver sends the decoded first screen-to-be-projected data and the decoded second screen-to-be-projected data to the first display device, it can also detect the Whether the second data to be projected is played normally, if it is detected that the playback of the second data to be projected is interrupted, the terminal may be requested to send the source address of the second data to be projected, wherein the source address includes the second data to be projected One or more of the name of the data to be projected, one or more of the serial number of the episode, and then the wireless fidelity WiFi transceiver can download the second waiting data of the source address according to one or more of the name of the second screen data to be projected and the serial number of the episode Screen projection data, and finally send the second data to be screen projection of the source address to the second display device. This solution can download the second data to be projected according to the source address in time when the playback of the second data to be projected is interrupted due to an abnormal situation, so as to connect the second data to be projected when a preset abnormal situation occurs, and improve video quality. The fluency of playback ensures the user's viewing experience.

The present application also provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are run on at least one processor, the aforementioned multi-screen projection method is realized, for example, 3 methods described.

The present application also provides a computer program product, which includes computer instructions, and when executed by a computing device, implements the aforementioned method for multi-screen projection, such as the method described in FIG. 3 .

In the embodiments of the present application, words such as "for example" or "such as" are used as examples, illustrations or descriptions. Any embodiment or design described as "for example" or "such as" in this application shall not be construed as being preferred or more advantageous than other embodiments or designs. Rather, the use of words such as "for example" or "such as" is intended to present related concepts in a concrete manner.

The "at least one" mentioned in the embodiments of the present application refers to one or more, and the "multiple" refers to two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one item (piece) of a, b, or c may represent: a, b, c, (a and b), (a and c), (b and c), or (a and b and c), where a, b, c can be single or multiple. "And/or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B, which may indicate: A exists alone, A and B exist simultaneously, and B exists alone, among which A and B may be singular or plural. The character "/" generally indicates that the contextual objects are an "or" relationship.

And, unless otherwise stated, the embodiments of the present application use ordinal numerals such as "first" and "second" to distinguish multiple objects, and are not used to limit the order, timing, priority or importance of multiple objects degree. For example, the first device and the second device are only for the convenience of description, and do not represent the differences in the structure and importance of the first device and the second device. In some embodiments, the first device and the second device It can also be the same device.

As used in the above embodiments, depending on the context, the term "when" may be interpreted to mean "if..." or "after" or "in response to determining..." or "in response to detecting... ". The above are only optional embodiments of the application, and are not intended to limit the application. Any modifications, equivalent replacements, improvements, etc. made within the concept and principles of the application shall be included in the protection of the application. within range.

Those of ordinary skill in the art can understand that all or part of the steps for implementing the above embodiments can be completed by hardware, and can also be completed by instructing related hardware through a program. The program can be stored in a computer-readable storage medium. The above-mentioned The storage medium mentioned may be a read-only memory, a magnetic disk or an optical disk, and the like.

The above is only a specific embodiment of the application, but the scope of protection of the application is not limited thereto. Any person familiar with the technical field can easily think of various equivalents within the scope of the technology disclosed in the application. Modifications or replacements, these modifications or replacements shall be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (10)

1. A method for multi-screen projection, characterized in that, being applied to a wireless fidelity WiFi transceiver, the method comprises: In the case that there is no screen-casting content on the first display device and the second display device, the target data sent by the terminal is received, wherein the terminal, the first display device and the second display device add the A wireless local area network formed by a wireless fidelity WiFi transceiver, the target data includes the first data to be projected and the second data to be projected, and the content of the first data to be projected is static graphic content or dynamic video content, The content of the second screen-to-be-projected data is the dynamic video content, and the target data carries the identification number for projecting the first screen-to-be-projected data on the first display device, and carries the The number identification of the second screen-to-be-projected data projected on the second display device; Sending the decoded first screen-to-be-projected data to the first display device, and sending the decoded second screen-to-be-projected data to the second display device. 2. The method according to claim 1, characterized in that, after receiving the target data sent by the terminal under the condition that there is no projected screen content on the first display device and the second display device, the Before the first display device sends the decoded first screen-to-be-projected data, and before sending the decoded second screen-to-be-projected data to the second display device, the method further includes: In the case where the content of the first screen-to-be-projected data and the content of the second screen-to-be-projected data are both the dynamic video content, converting the first screen-to-be-projected data into a protocol format of the USB protocol The first encoded data, and converting the second data to be projected into the second encoded data whose protocol format is the USB protocol; Decoding the first coded data by using the computer accessory UGA to obtain the decoded first screen-to-be-projected data; The UGA is used to decode the second coded data to obtain the decoded second screen-to-be-projected data. 3. The method according to claim 1 or 2, characterized in that, after receiving the target data sent by the terminal in the case that there is no screen-casting content on the first display device and the second display device, the Before the first display device sends the decoded first screen-to-be-projected data, and before sending the decoded second screen-to-be-projected data to the second display device, it further includes: When the content of the first data to be projected is the static graphic content, and the content of the second data to be projected is dynamic video content, converting the first data to be projected into a protocol The format is the first encoded data of WiFi protocol; Decoding the first coded data according to a preset decoding method to obtain the decoded first screen-to-be-projected data; Converting the second screen-to-be-projected data into the second coded data whose protocol format is the USB protocol; The UGA is used to decode the second coded data to obtain the decoded second screen-to-be-projected data. 4. The method according to claim 1, further comprising: In a case where the screen-casting content exists on the first display device and the screen-casting content does not exist on the second display device, determining that the first screen-to-be-projected screen exists on the first display device data; Detecting whether the first data to be projected needs to be adjusted; If adjustment is not required, receiving the second screen-to-be-projected data sent by the terminal. 5. The method according to claim 1 or 2, characterized in that, sending the decoded first screen-to-be-projected data to the first display device, and sending the decoded first screen-to-be-projected data to the second display device Second, after the projection data, it also includes: If it is detected that the second screen to be projected data on the second display device is interrupted, a request message is sent to the terminal, where the request message is used to request the terminal to send the second screen to be projected The source address of the data, the source address includes one or more of the name of the second data to be projected and the serial number of the episode; receiving the source address of the second screen-to-be-projected data sent by the terminal; downloading the second screen-to-be-projected data according to the source address; Sending the second screen-to-be-projected data of the source address to the second display device. 6. A multi-screen projection device, characterized in that it includes a receiving unit and a sending unit, wherein: In the case that there is no screen projection content on the first display device and the second display device, the receiving unit is configured to receive the target data sent by the terminal, wherein the terminal, the first display device and the second display device The second display device has joined the wireless local area network formed by the wireless fidelity WiFi transceiver, the target data includes the first data to be projected and the second data to be projected, and the content of the first data to be projected is static graphic content Or dynamic video content, the content of the second screen-to-be-projected data is the dynamic video content, and the target data carries a number identification for projecting the first screen-to-be-projected data to the first display device, And carrying the number identification for projecting the second screen-to-be-projected data on the second display device; The sending unit is configured to send the decoded first screen-to-be-projected data to the first display device, and send the decoded second screen-to-be-projected data to the second display device. 7. The device according to claim 6, further comprising a converting unit and a decoding unit; In the case where the content of the first screen-to-be-projected data and the second screen-to-be-projected data are both the dynamic video content, the conversion unit is configured to convert the first screen-to-be-projected data It is the first coded data whose protocol format is the USB protocol, and converting the second data to be projected into the second coded data whose protocol format is the USB protocol; The decoding unit is used to decode the first coded data through the computer accessory UGA to obtain the decoded first data to be projected; it is also used to decode the second coded data through the UGA , to obtain the decoded second data to be projected. 8. The device according to claim 6 or 7, further comprising a converting unit and a decoding unit; When the content of the first data to be projected is the static graphic content, and the content of the second data to be projected is dynamic video content, the converting unit is configured to convert the first The data to be projected is converted into the first coded data whose protocol format is the WiFi protocol; The decoding unit is configured to decode the first coded data according to a preset decoding method to obtain the decoded first screen-to-be-projected data; The conversion unit is further configured to convert the second screen-to-be-projected data into the second coded data whose protocol format is the USB protocol; The decoding unit is further configured to use the UGA to decode the second coded data to obtain the decoded second screen-to-be-projected data. 9. A wireless fidelity WiFi transceiver, characterized in that the device includes a processor and a memory, the memory is used to store computer instructions, and the processor is used to call the computer instructions to achieve claim 1- The method described in any one of 5. 10. A computer-readable storage medium, characterized in that instructions are stored in the computer-readable storage medium, and when the instructions are run on at least one processor, any one of claims 1-5 is implemented. the method described.

Images