CN115623069A - Multi-screen projection method and device - Google Patents

Multi-screen projection method and device Download PDF

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Publication number
CN115623069A
CN115623069A CN202211124007.5A CN202211124007A CN115623069A CN 115623069 A CN115623069 A CN 115623069A CN 202211124007 A CN202211124007 A CN 202211124007A CN 115623069 A CN115623069 A CN 115623069A
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China
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data
screen
projected
display device
decoded
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CN202211124007.5A
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Chinese (zh)
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金国春
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Shenzhen Xfanic Technology Co Ltd
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Shenzhen Xfanic Technology Co Ltd
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Priority to CN202211124007.5A priority Critical patent/CN115623069A/en
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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
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Abstract

The embodiment of the application discloses a multi-screen projection method and a multi-screen projection device, which are applied to a wireless fidelity WiFi transceiver, wherein the method comprises the following steps: under the condition that screen-casting contents do not exist on first display equipment and second display equipment, receiving target data sent by a terminal, wherein the terminal, the first display equipment and the second display equipment are added into a wireless local area network established by a wireless fidelity (WiFi) transceiver, the target data comprise first to-be-screen-cast data and second to-be-screen-cast data, the contents of the first to-be-screen-cast data are static image-text contents or dynamic video contents, and the contents of the second to-be-screen-cast data are dynamic video contents; and sending the decoded first screen data to be projected to the first display device, and sending the decoded second screen data to be projected to the second display device. According to the embodiment of the application, the bandwidth can be increased, and the resolution and the frame rate of video data during screen projection are improved.

Description

Multi-screen projection method and device
Technical Field
The application relates to a communication technology, which is applied to the fields of internet, big data and the like, in particular to a multi-screen projection method and a multi-screen projection device.
Background
Currently, most of screen projection parameters for videos are 4K/30 frames, so that the screen projection image quality is not high, and in scenes such as a conference, the size of projection equipment (televisions and projectors) in a conference room is larger and larger, and most of the screen projection parameters reach the resolution of 4K. But if the low resolution and large size display pictures are combined, the picture quality is secondarily degraded. In addition, in a scene such as a conference, a user may also have a requirement for screen projection by multiple screens, and therefore, when screen projection is performed, not only the problem of image quality of screen projection when a video needs to be projected is required to be considered, but also the problems of power consumption and processing efficiency of the wireless fidelity WiFi transceiver are required to be considered.
Disclosure of Invention
The embodiment of the application provides a multi-screen projection method and device, which can increase the bandwidth and improve the resolution and frame rate of video data during screen projection.
In a first aspect, an embodiment of the present application provides a multi-screen projection method, which is applied to a WiFi transceiver, and includes:
receiving target data sent by a terminal under the condition that screen projection contents do not exist on first display equipment and second display equipment, wherein the terminal, the first display equipment and the second display equipment are added into a wireless local area network formed by a wireless fidelity WiFi transceiver, the target data comprise first screen data to be projected and second screen data to be projected, the first screen data to be projected are static image-text contents or dynamic video contents, the second screen data to be projected are dynamic video contents, and the target data carry a serial number identifier for projecting the first screen data to be projected on the first display equipment and a serial number identifier for projecting the second screen data to be projected on the second display equipment;
and sending the decoded first screen data to be projected to the first display device, and sending the decoded second screen data to be projected to the second display device.
In the prior art, currently, screen projection parameters for a video are mostly 4K/30 frames, so that the screen projection image quality is not high, and a user may have a multi-screen projection requirement in a scene such as a conference. Aiming at the condition of the requirement of multi-screen projection, under the condition that screen projection contents do not exist on a first display device and a second display device, a wireless fidelity WiFi transceiver receives target data sent by a terminal, wherein the target data comprises first screen data to be projected, the contents of which are static image-text contents or dynamic video contents, and second screen data to be projected, the contents of which are dynamic video contents, and the target data carries a serial number identifier for projecting the first screen data to be projected on the first display device and a serial number identifier for projecting the second screen data to be projected on the second display device; and finally, sending the decoded first to-be-projected-screen data to the first display device, and sending the decoded second to-be-projected-screen data to the second display device. The method and the device can improve the resolution and the frame rate of video data during screen projection.
In a possible implementation manner, after receiving target data sent by a terminal in a case that no screen-casting content exists on a first display device and a second display device, before sending decoded first screen-casting data to the first display device and sending decoded second screen-casting data to the second display device, the method further includes:
under the condition that the content of the first data to be projected and the content of the second data to be projected are both the dynamic video content, converting the first data to be projected into first coded data with a protocol format of a USB protocol, and converting the second data to be projected into second coded data with a protocol format of the USB protocol;
decoding the first coded data through a computer accessory UGA to obtain decoded first to-be-projected-screen data;
and decoding the second coded data through the UGA to obtain the decoded second data to be projected.
In the method, when the content of the first screen data to be projected and the content of the second screen data to be projected are both dynamic video content (for example, the content of the first screen data to be projected is video design 1, and the content of the second screen data to be projected is video design 2), the WiFi transceiver may convert the first screen data to be projected (video design 1) into first encoded data with a protocol format of a USB protocol, and convert the second screen data to be projected (video design 2) into second encoded data with a protocol format of a USB protocol; and then decoding the first coded data through UGA to obtain decoded first data to be projected (video design 1), and decoding the second coded data through UGA to obtain decoded second data to be projected (video design 2). According to the scheme, the encoding data are decoded based on UGA, a plurality of display devices can be externally connected through the USB interface of the host, and display setting of each display device is realized.
In another possible implementation manner, in the case that no screen-casting content exists on the first display device and the second display device, after receiving target data sent by a terminal, before sending decoded first screen-casting data to the first display device and sending decoded second screen-casting data to the second display device, the method further includes:
under the condition that the content of the first data to be projected is the static image-text content and the content of the second data to be projected is the dynamic video content, converting the first data to be projected into the first coding data with a WiFi protocol;
decoding the first coded data according to a preset decoding mode to obtain decoded first to-be-projected-screen data;
converting the second screen data to be projected into the second coded data with a protocol format of a USB protocol;
and decoding the second coded data through the UGA to obtain the decoded second data to be projected.
In the method, under the condition that the content of the first screen data to be projected is static image-text content and the content of the second screen data to be projected is dynamic video content, the wireless fidelity WiFi transceiver can convert the first screen data to be projected into first coded data with a WiFi protocol in a protocol format, and then decode the first coded data according to a preset decoding mode to obtain the decoded first screen data to be projected. And then converting the second data to be projected into second coded data with a protocol format of a USB protocol, and decoding the second coded data through UGA to obtain the decoded second data to be projected. According to the scheme, different modes are adopted to specifically encode and decode the first to-be-projected screen data and the second to-be-projected screen data, and the processing efficiency of video data projection can be effectively improved.
In another possible embodiment, the method further includes:
determining that the first screen to be projected data exists on the first display device under the condition that the screen projection content exists on the first display device and the screen projection content does not exist on the second display device;
detecting whether the first to-be-projected data needs to be adjusted or not;
and if the adjustment is not needed, receiving the second screen to be projected data sent by the terminal.
In the method, under the condition that screen projection content exists on the first display device and screen projection content does not exist on the second display device, if the wireless fidelity WiFi transceiver determines that the screen projection content existing on the first display device is the first screen data to be projected, the wireless fidelity WiFi transceiver may further detect whether the user adjusts the first screen data to be projected on the terminal, and if it is detected that the user does not adjust the first screen data to be projected on the terminal, that is, when the first screen data to be projected is not changed, the wireless fidelity WiFi transceiver only needs to receive the second screen data to be projected sent by the terminal. According to the scheme, under the condition that screen projection content exists on the first display device and screen projection content does not exist on the second display device, whether the screen projection content on the first display device needs to be adjusted or not is detected, so that the wireless fidelity WiFi transceiver can pertinently receive target data sent by the terminal, the processing efficiency of the screen projection data is finally improved, and resources are effectively saved.
In another possible implementation, after sending the decoded first to-be-projected-screen data to the first display device and sending the decoded second to-be-projected-screen data to the second display device, the method further includes:
if the interruption of the second data to be screen-projected on the second display device is detected, sending a request message to the terminal, wherein the request message is used for requesting the terminal to send a source address of the second data to be screen-projected, and the source address comprises one or more of the name of the second data to be screen-projected and an episode serial number;
receiving a source address of the second data to be screened sent by the terminal;
downloading the second data to be screened according to the source address;
and sending second to-be-screened data of the source address to the second display device.
In the method, after the WiFi transceiver sends the decoded first screen data to be projected to the first display device and sends the decoded second screen data to be projected to the second display device, it may also detect whether the second screen data to be projected on the second display device is played normally, if it is detected that the playing of the second screen data to be projected is interrupted, the terminal may be requested to send a source address of the second screen data to be projected, where the source address includes one or more of a name and an episode number of the second screen data to be projected, and then the WiFi transceiver may download the second screen data to be projected of the source address according to one or more of the name and the episode number of the second screen data to be projected, and finally send the second screen data to be projected of the source address to the second display device. According to the scheme, when the abnormal condition occurs and the playing of the second screen data to be projected is interrupted, the second screen data to be projected is downloaded in time according to the source address, so that the second screen data to be projected when the preset abnormal condition occurs are linked, the smoothness of video playing is improved, and the viewing experience of a user is guaranteed.
In a second aspect, an embodiment of the present application provides a multi-screen projection device, where the device includes a receiving unit and a sending unit, and the device is configured to implement the method described in the first aspect or any one of the possible implementation manners of the first aspect.
It should be noted that the processor included in the apparatus described in the second aspect may be a processor dedicated to execute the methods (referred to as a special-purpose processor for convenience), or may be a processor that executes the methods by calling a computer program, for example, a general-purpose processor. Optionally, the at least one processor may also include both special purpose and general purpose processors.
Alternatively, the computer program may be stored in a memory. For example, the Memory may be a non-transitory (non-transitory) Memory, such as a Read Only Memory (ROM), which may be integrated with the processor on the same device or separately disposed on different devices, and the embodiment of the present application is not limited to the type of the Memory and the arrangement manner of the Memory and the processor.
In a possible embodiment, the at least one memory is located outside the apparatus.
In yet another possible embodiment, the at least one memory is located within the apparatus.
In yet another possible embodiment, a part of the at least one memory is located inside the apparatus, and another part of the memory is located outside the apparatus.
In this application, it is also possible that the processor and the memory are integrated in one device, i.e. that the processor and the memory are integrated together.
In a third aspect, embodiments of the present application provide a WiFi transceiver, which includes a processor and a memory; the memory has stored therein a computer program; when the processor executes the computer program, the computing device performs the method described in any of the preceding first or second aspects.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium having stored therein instructions that, when executed on at least one processor, implement the method described in any of the first to fourth aspects.
In a fifth aspect, the present application provides a computer program product comprising computer instructions that, when run on at least one processor, implement the method described in any of the preceding first to fourth aspects. The computer program product may be a software installation package, which may be downloaded and executed on a computing device in case it is desired to use the method as described above.
The advantages of the technical methods provided in the second to fifth aspects of the present application may refer to the advantages of the technical solution of the first aspect, and are not described herein again.
Drawings
The drawings that are required to be used in the description of the embodiments will now be briefly described.
Fig. 1 is an application scene diagram of a multi-screen projection provided by an embodiment of the present application;
FIG. 2 is a block diagram of a multi-screen projection system according to an embodiment of the present disclosure;
fig. 3 is a flowchart illustrating a multi-screen projection method according to an embodiment of the present application;
fig. 4 is a schematic diagram illustrating a terminal sending target data to a WiFi transceiver according to an embodiment of the present application;
fig. 5 is a schematic diagram illustrating a terminal sending second screen projection data to a WiFi transceiver according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a multi-screen projection device 60 according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a WiFi transceiver 70 according to an embodiment of the present disclosure.
Detailed Description
The embodiments of the present application will be described below with reference to the drawings.
For the sake of easy understanding, the technical terms related to the embodiments of the present application will be briefly described.
1.UGA
UGA is a hardware device which is released globally in 2003 by wavlik corporation and is connected with a display interface through a USB interface, and the English name of UGA is USB Graphic Adapter, which is called USB display card for short, or USB external (multifunctional) display card. UGA adopts USB input and VGA/DVI/HDMI interface output. The audio/video signals are transmitted to the display (VGA/DVI/HDMI, etc. interface) through the host USB interface. Through UGA, the user can be through external a plurality of displays of host computer USB interface to realize showing the setting to every display, the range of application involves: the method comprises the steps of large financial statement making, business meeting (projection combination), security monitoring (single screen decomposition is carried out into multi-screen display), traffic management (single screen decomposition is carried out into multi-screen display), large-screen advertisements (single screen splicing is carried out into large-screen display), game players (exercise/multi-screen display), personal multi-screen office, drawing and charting multi-screen splicing display, double-display occasions such as Microsoft Windows Multipoint Server zero client systems, business halls/POS machines and the like are set up.
Referring to fig. 1, fig. 1 is a diagram illustrating an application scenario of multi-screen projection according to an embodiment of the present application, where in fig. 1, when a terminal identifies a terminal according to a serial number a 1 The content displayed by the first screen data to be projected (for example, the first screen data to be projected is static image-text content, and the specific display content is page 1 of item analysis report PPT) is projected to the first display device A 1 And identify A according to the number 2 Projecting the content displayed by the second screen data to be projected (for example, the second screen data to be projected is dynamic video content, and the specific display content is video design scheme 1) to the second display device A 2 After that, the current first display device a 1 Upper and second display devices A 2 Correspondingly displays the content of the screen projected on the terminal (namely the first display device A) 1 The display contents of (1) are: project analysis report PPT page 1; second display device A 2 The display contents of (1) are: video design 1), namely, the final presented effect is that the content displayed by the terminal is consistent with the content correspondingly displayed by the first display device and the second display device. In the embodiment of the present application, a scene in which emphasis is placed on a multi-screen projection screen is explained later.
Referring to fig. 2, fig. 2 is an architecture schematic diagram of a multi-screen projection system provided in an embodiment of the present application, where the system includes a 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 are all added to a wireless local area network formed by the WiFi transceiver 201, that is, the WiFi transceiver 201, the terminal 202, the first display device 203, and the second display device 204 perform data transmission and interaction on the same piece of wireless local area network.
The 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 a wireless network, and is used for receiving and transmitting wireless signals for data transmission. The wireless fidelity WiFi transceiver can be a wireless router or a wireless network card, and the notebook computer can also be used as the wireless fidelity WiFi transceiver. In this embodiment of the application, in the case that no screen-projecting content exists on the first display device 203 and the second display device 204, the WiFi transceiver 201 receives target data sent by the terminal 202, where the target data includes first screen-to-be-projected data whose content is static image-text content or dynamic video content, and second screen-to-be-projected data whose content is dynamic video content, and the target data carries a number identifier for projecting the first screen-to-be-projected data on the first display device 203 and a number identifier for projecting the second screen-to-be-projected data on the second display device 204; and finally, sending the decoded first screen data to be projected and the decoded second screen data to be projected to the first display device 203. The WiFi transceiver 201 provides application services to 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 palmtop Computer, a desktop Computer, a diagnostic device, a mobile phone, an Ultra-mobile Personal Computer (UMPC), a netbook, a Personal Digital Assistant (PDA), and the like. In the embodiment of the present Application, the terminal 202 is an Application (APP). The terminal 202 is used to transmit the target data to the WiFi transceiver 201.
The first display device 203 and the second display device 204 may be a flat panel, a rotatable smart television, or the like having a display function. In this embodiment of the application, the first display device 203 is configured to receive the decoded first screen data to be projected sent by the WiFi transceiver 201 and display the first screen data to be projected, and the second display device 204 is configured to receive the decoded second screen data to be projected sent by the WiFi transceiver 201 and display the second screen data to be projected.
The method of the embodiments of the present application is described in detail below.
Referring to fig. 3, fig. 3 is a flowchart illustrating a multi-screen projection method according to an embodiment of the present disclosure. Alternatively, the method may apply to the system described in fig. 2.
The multi-screen projection method as illustrated in fig. 3 at least includes steps S301 to S302.
Step S301: and under the condition that screen projection content does not exist on the first display device and the second display device, the wireless fidelity WiFi transceiver receives target data sent by the terminal.
The terminal, the first display device and the second display device are added with a wireless local area network formed by a wireless fidelity WiFi transceiver, target data comprise first screen data to be projected and second screen data to be projected, the content of the first screen data to be projected is static image-text content or dynamic video content, the content of the second screen data to be projected is dynamic video content, and the target data carry a serial number identifier for projecting the first screen data to be projected on the first display device and a serial number identifier for projecting the second screen data to be projected on the second display device. It should be noted that, the fact that no screen projection content exists on the first display device and the second display device indicates that the WiFi transceiver can directly receive the target data sent by the terminal when it is not detected that dynamic video content or static image-text content exists on the first display device and the second display device, and then screen-project the target data onto the first display device and the second display device.
Specifically, the source of the target data sent by the WiFi transceiver receiving terminal is various, for example, the user may send the target data to the WiFi transceiver based on the platform of the terminal, and the platform may be an APP, a cloud platform, or a web page. Wireless fidelity WiF is added to the terminal, the first display device and the second display deviceAfter the wireless local area network is established by the i transceiver, the WiFi transceiver may first determine whether screen projection content exists on the first display device and the second display device, and if it is determined that screen projection content does not exist on the first display device and the second display device, the WiFi transceiver may request the terminal to send the first screen data to be projected and the second screen data to be projected. For example, fig. 4 is a schematic diagram of a terminal sending target data to a WiFi transceiver according to an embodiment of the present disclosure, and as shown in fig. 4, if the terminal, a first display device, and a second display device join a wireless local area network "Ming-8826" formed by the WiFi transceiver, then under the same local area network, if the WiFi transceiver determines that no screen projection content exists on the first display device and the second display device, that is, the first display device a is a first display device a 1 And a second display device A 2 And when the terminal is in an idle state, the terminal is requested to send first screen data to be projected and second screen data to be projected to the wireless fidelity WiFi transceiver. Correspondingly, the terminal sends the wireless fidelity WiFi transceiver with the serial number mark A 1 The first screen data to be projected is correspondingly projected on the first display device A 1 (wherein, the content of the first data to be projected can be item analysis report PPT page 1 or video design 1), and a serial number mark A is carried 2 The second screen data to be projected is projected to the second display device A correspondingly 2 (wherein, the content of the second screen data to be projected can be video design 2). For another example, the user selects the first data to be projected and the second data to be projected from a file stored locally, or downloads the first data to be projected and the second data to be projected from a cloud, or selects the first data to be projected and the second data to be projected from a database (such as 666 movies) of the platform, and then sends the first data to be projected and the second data to be projected to the WiFi transceiver. Accordingly, the WiFi transceiver receives the target data transmitted by the terminal (i.e. the target data is the target data)First data to be projected and second data to be projected).
Further, after step S301, the WiFi transceiver needs to encode and decode 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 screen-projected in the target data may be static image-text content or dynamic video content, and the content of the second data to be screen-projected may be dynamic video content. Specifically, under the condition that no screen projection content exists on the first display device and the second display device, the WiFi transceiver may receive first screen data to be projected, which is sent by the terminal and whose content is static image-text content, and second screen data to be projected, which is sent by the terminal and whose content is dynamic video content, or receive first screen data to be projected and second screen data to be projected, which are both dynamic video content. These two cases are explained in detail below.
In the first case, when the content of the first data to be screen-projected and the content of the second data to be screen-projected are both dynamic video content (for example, the content of the first data to be screen-projected is video design 1, and the content of the second data to be screen-projected is video design 2), the WiFi transceiver may convert the first data to be screen-projected (video design 1) into first encoded data with a protocol format of the USB protocol, and convert the second data to be screen-projected (video design 2) into second encoded data with a protocol format of the USB protocol; and then decoding the first coded data through UGA to obtain decoded first data to be projected (video design 1), and decoding the second coded data through UGA to obtain decoded second data to be projected (video design 2). According to the scheme, the encoding data are decoded based on UGA, a plurality of display devices can be externally connected through the USB interface of the host, and display setting of each display device is realized.
Under the second condition, when the content of the first to-be-projected-screen data is static image-text content (for example, the content of the first to-be-projected-screen data is item analysis report PPT page 1), and the content of the second to-be-projected-screen data is dynamic video content (for example, the content of the second to-be-projected-screen data is video design 2), the WiFi transceiver may convert the first to-be-projected-screen data (item analysis report PPT page 1) into first encoded data of which the protocol format is the WiFi protocol; decoding the first coded data according to a preset decoding mode (wherein the preset decoding mode can be unescape decoding, decode URI or decode URI Component decoding) to obtain decoded first screen data to be projected (item analysis report PPT page 1); converting the second data to be projected (video design 2) into second coded data with a protocol format of a USB protocol; and finally, decoding the second coded data through UGA to obtain decoded second data to be projected (video design 2). In the scheme, because the content of the first screen data to be projected is static image-text content (project analysis report PPT page 1) and the content of the second screen data to be projected is dynamic video content (video design scheme 2), compared with the two, the requirement on the frame rate of the video design scheme 2 is higher than that of the project analysis report PPT, and when the frame rate is higher, the video design scheme 2 is more smoothly played, so that the wireless fidelity WiFi transceiver can convert the video design scheme 2 into second coded data with a protocol format of a USB protocol, and then the second coded data is decoded through UGA to obtain the decoded video design scheme 2. Because the content of the first screen data to be projected is static image-text content (item analysis report, PPT page 1), and the requirement for the frame rate is lower than that of the video, the wireless fidelity WiFi transceiver can convert the item analysis report, PPT page 1 into first coded data with a protocol format of WiFi protocol, and decode the first coded data in a preset decoding mode to obtain the decoded item analysis report, PPT page 1. According to the scheme, different modes are adopted to encode and decode the first to-be-projected-screen data and the second to-be-projected-screen data in a targeted manner, and the processing efficiency of video data projection can be effectively improved.
Step S302: the wireless fidelity WiFi transceiver sends the decoded first screen data to be projected to the first display device, and sends the decoded second screen data to be projected to the second display device.
Specifically, the first display device and the second display device may automatically receive the decoded first screen data to be projected and the decoded second screen data to be projected, which are sent by the wireless fidelity WiFi transceiver, and may also output the decoded first screen data to be projected and the decoded second screen data to be projected to the user through the first display device and the second display device, the user may operate the decoded first screen data to be projected and the decoded second screen data to be projected, such as confirm the receiving operation and cancel the receiving operation, where if the first display device and the second display device receive the confirm receiving operation input by the user, the decoded first screen data to be projected and the decoded second screen data to be projected, which are sent by the wireless fidelity WiFi transceiver, are received, and 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 and the decoded second screen data to be projected, which are sent by the wireless fidelity WiFi transceiver, are not received.
Optionally, after the WiFi transceiver sends the decoded first to-be-screen-projected data to the first display device and sends the decoded second to-be-screen-projected data to the second display device, if it is detected that the second to-be-screen-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 a source address of the second to-be-screen-projected data, and the source address includes one or more of a name and an episode number of the second to-be-screen-projected data, and then after the terminal sends the source address of the second to-be-screen-projected data to the WiFi transceiver, the WiFi transceiver correspondingly receives the source address of the second to-be-screen-projected data sent by the terminal; then downloading second data to be screened according to the source address; and finally, sending the second to-be-screened data of the source address to the second display device.
Specifically, for example, after the WiFi transceiver sends the decoded first to-be-screen-projected data (video design 1) to the first display device and sends the decoded second to-be-screen-projected data (video design 2) to the second display device, it may further detect whether the second to-be-screen-projected data (video design 2) on the second display device is normally played, if it is detected that the playing of the second to-be-screen-projected data (video design 2) is interrupted within a preset time period, the WiFi transceiver may request the terminal to send a source address of the second to-be-screen-projected data (video design 2), and then the WiFi transceiver may download the second to-be-screen-projected data of the source address according to the name of the second to-be-screen-projected data (video design 2), and finally send the second to-be-screen-projected data (video design 2) of the source address to the second display device. According to the scheme, when the abnormal condition occurs and the playing of the second screen data to be projected is interrupted, the second screen data to be projected is downloaded in time according to the source address, so that the second screen data to be projected when the preset abnormal condition occurs are linked, the smoothness of video playing is improved, and the viewing experience of a user is guaranteed.
Optionally, under the condition that the screen projection content exists on the first display device and the screen projection content does not exist on the second display device, the WiFi transceiver may detect whether the first screen data to be projected needs to be adjusted after determining that the first screen data to be projected exists on the first display device; and if the adjustment is not needed, receiving second to-be-projected-screen data sent by the terminal.
Specifically, fig. 5 is a schematic diagram that a terminal sends second to-be-projected-screen data to a WiFi transceiver in an embodiment of the present application, and as shown in fig. 5, the second to-be-projected-screen data is displayed on a first display device a 1 Has screen projection content on, and the second display device A 2 If the wireless fidelity WiFi transceiver determines that the first display equipment A does not exist on the screen, the first display equipment A is connected with the wireless fidelity WiFi transceiver 1 If the screen-casting content is the first screen-casting data (e.g., item analysis report, PPT page 1), the WiFi transceiver may further detect whether the user adjusts the first screen-casting data on the terminal (e.g., the WiFi transceiver may detect whether the user switches the item analysis report, PPT page 1 to another page), and if it is detected that the user does not adjust the first screen-casting data on the terminal, that is, the first screen-casting data is not changed and still remains the item analysis report, PPT page 1, at this time, the WiFi transceiver may further detect that the user adjusts the first screen-casting data on the terminalThe terminal only needs to send second data to be screen-projected to the WiFi transceiver, and accordingly, the WiFi transceiver receives the second data to be screen-projected (as in video design 2). According to the scheme, under the condition that screen projection content exists on the first display device and screen projection content does not exist on the second display device, whether the screen projection content on the first display device needs to be adjusted or not is detected, so that the wireless fidelity WiFi transceiver can pertinently receive target data sent by the terminal, the processing efficiency of the screen projection data is finally improved, and resources are effectively saved.
Optionally, in a case that screen projection contents exist on both the first display device and the second display device, the WiFi transceiver may detect the screen projection contents of the first display device and the second display device, for example, the WiFi transceiver determines that the screen projection contents on the first display device are video design 1, and the screen projection contents on the second display device are video design 2, if the WiFi transceiver detects that the video design 2 has a preset abnormal condition (such as a terminal is black or an event of an incoming call) when the play timestamp is 45 seconds, and blocks a video stream of the video design 2, the WiFi transceiver may first send a request message to the terminal, the request message may be displayed on the terminal in a popup window display manner, and the request message is specifically used for obtaining an authorized time duration of the terminal, so that the terminal sends a second to-be-screened data to the WiFi transceiver, if the terminal confirms that the WiFi transceiver sends the video design 2 to the WiFi transceiver, and then receives a source address of the video design 2, and then the WiFi transceiver determines that the video source address of the video design 2 is corresponding to the WiFi transceiver, and then sends a complete interrupt data corresponding to the video source address of the WiFi transceiver in the video design 2 minutes. According to the scheme, when video streams of screen projection contents existing on the first display device and the second display device are interrupted, the wireless fidelity WiFi transceiver can correspondingly send video data of playing interruption positions to the first display device and the second display device in time, so that after the video streams of the screen projection contents existing on the first display device and the second display device are interrupted, the video data of a source address can be linked with the video data of the screen projection contents before interruption, the video can be smoothly played when a user watches the screen projection video, the interference of preset abnormal conditions is avoided, and the watching experience of the user is improved.
In the prior art, currently, screen projection parameters for a video are mostly 4K/30 frames, so that the screen projection image quality is not high, and a user may have a multi-screen projection requirement in a scene such as a conference. Aiming at the condition of the requirement of multi-screen projection, under the condition that screen projection contents do not exist on a first display device and a second display device, a wireless fidelity WiFi transceiver receives target data sent by a terminal, wherein the target data comprises first screen data to be projected, the contents of which are static image-text contents or dynamic video contents, and second screen data to be projected, the contents of which are dynamic video contents, and the target data carries a serial number identifier for projecting the first screen data to be projected on the first display device and a serial number identifier for projecting the second screen data to be projected on the second display device; and finally, sending the decoded first to-be-projected-screen data to the first display device, and sending the decoded second to-be-projected-screen data to the second display device. The method and the device can improve the resolution and the frame rate of video data during screen projection.
The method of the embodiments of the present application is explained in detail above, and the apparatus of the embodiments of the present application is provided below.
It is to be understood that, in order to implement the functions of the foregoing method embodiments, a plurality of devices, for example, a multi-screen projection device, provided in this application embodiment include a hardware structure, a software module, or a combination of a hardware structure and a software structure, which performs the respective functions.
Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. A person skilled in the art may implement the foregoing method embodiments in different usage scenarios by using different device implementations, and the different implementation manners of the device should not be considered as exceeding the scope of the embodiments of the present application.
The embodiment of the application can divide the functional modules of the device. For example, each functional module may be divided in accordance with each function, or two or more functions may be integrated into one functional module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.
For example, in the case where the respective functional blocks of the apparatus are divided in an integrated manner, the present application exemplifies several possible processing apparatuses.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a multi-screen projection device 60 according to an embodiment of the present disclosure, where the multi-screen projection device 60 can be the WiFi transceiver shown in fig. 2 or a device in the WiFi transceiver, such as a chip, a software module, an integrated circuit, and the like. The multi-screen projection apparatus 60 is used to implement the multi-screen projection method, such as the multi-screen projection method described in fig. 3.
In one possible embodiment, the multi-screen projection device 60 can include a receiving unit 601 and a transmitting unit 602.
The receiving unit 601 is configured to receive target data sent by a terminal when screen-casting content does not exist on a first display device and a second display device, where the terminal, the first display device, and the second display device join a wireless local area network established by the WiFi transceiver, the target data includes first data to be screen-cast and second data to be screen-cast, the first data to be screen-cast is static image-text content or dynamic video content, the second data to be screen-cast is dynamic video content, and the target data carries a serial number identifier for screen-casting the first data to be screen-cast on the first display device and a serial number identifier for screen-casting the second data to be screen-cast on the second display device;
the sending unit 602 is configured to send the decoded first to-be-projected-screen data to the first display device, and send the decoded second to-be-projected-screen data to the second display device.
In the prior art, currently, screen projection parameters for a video are mostly 4K/30 frames, so that the screen projection image quality is not high, and a user may have a multi-screen projection requirement in a scene such as a conference. Aiming at the condition of the requirement of multi-screen projection, under the condition that screen projection contents do not exist on a first display device and a second display device, a wireless fidelity WiFi transceiver receives target data sent by a terminal, wherein the target data comprises first screen data to be projected, the contents of which are static image-text contents or dynamic video contents, and second screen data to be projected, the contents of which are dynamic video contents, and the target data carries a serial number identifier for projecting the first screen data to be projected on the first display device and a serial number identifier for projecting the second screen data to be projected on the second display device; and finally, sending the decoded first data to be projected and the decoded second data to be projected to the first display device. According to the scheme, the resolution and the frame rate of the video data during screen projection can be improved.
In another possible implementation, the system further comprises a conversion unit and a decoding unit;
the conversion unit is used for converting the first screen data to be projected into first coded data with a protocol format of a USB protocol and converting the second screen data to be projected into second coded data with a protocol format of the USB protocol under the condition that the content of the first screen data to be projected and the content of the second screen data to be projected are both the dynamic video content;
the decoding unit is used for decoding the first coded data through a computer accessory UGA to obtain decoded first data to be projected; and the UGA is also used for decoding the second coded data to obtain the decoded second data to be projected.
In the embodiment of the application, when both the content of the first data to be screen-projected and the content of the second data to be screen-projected are dynamic video content (for example, the content of the first data to be screen-projected is video design 1, and the content of the second data to be screen-projected is video design 2), the WiFi transceiver may convert the first data to be screen-projected (video design 1) into first encoded data with a protocol format of USB protocol, and convert the second data to be screen-projected (video design 2) into second encoded data with a protocol format of USB protocol; and then decoding the first coded data through UGA to obtain decoded first data to be projected (video design 1), and decoding the second coded data through UGA to obtain decoded second data to be projected (video design 2). According to the scheme, the encoding data are decoded based on UGA, a plurality of display devices can be externally connected through the USB interface of the host, and display setting of each display device is realized.
In another possible implementation manner, in a case that the content of the first to-be-projected-screen data is the static image-text content, and the content of the second to-be-projected-screen data is the dynamic video content, the converting unit is further configured to convert the first to-be-projected-screen data into first encoded data with a WiFi protocol;
the decoding unit is further configured to decode the first encoded data according to a preset decoding mode to obtain decoded first data to be projected.
The conversion unit is also used for converting the second screen data to be projected into second coded data with a protocol format of a USB protocol;
the decoding unit is further configured to decode the second encoded data through the UGA to obtain decoded second data to be projected.
In the embodiment of the application, under the condition that the content of the first to-be-projected-screen data is static image-text content and the content of the second to-be-projected-screen data is dynamic video content, the WiFi transceiver can convert the first to-be-projected-screen data into first coded data with a WiFi protocol, and then decode the first coded data according to a preset decoding mode to obtain the decoded first to-be-projected-screen data. And then converting the second data to be projected into second coded data with a protocol format of a USB protocol, and decoding the second coded data through UGA to obtain the decoded second data to be projected. According to the scheme, different modes are adopted to specifically encode and decode the first to-be-projected screen data and the second to-be-projected screen data, and the processing efficiency of video data projection can be effectively improved.
In another possible implementation, the method further comprises a determining unit and a detecting unit;
the determining unit is used for determining that the first to-be-projected-screen data exists on the first display device under the condition that the projected screen content exists on the first display device and the projected screen content does not exist on the second display device;
the detection unit is used for detecting whether the first screen data to be projected needs to be adjusted or not;
if the adjustment is not needed, the receiving unit 601 is further configured to receive the second to-be-projected-screen data sent by the terminal.
In this embodiment of the application, under the condition that screen projection content exists on the first display device and screen projection content does not exist on the second display device, if the wireless fidelity WiFi transceiver determines that the screen projection content existing on the first display device is the first screen data to be projected, the wireless fidelity WiFi transceiver may further detect whether the user adjusts the first screen data to be projected on the terminal, and if it is detected that the user does not adjust the first screen data to be projected on the terminal, that is, when the first screen data to be projected is not changed, the wireless fidelity WiFi transceiver only needs to receive the second screen data to be projected sent by the terminal. According to the scheme, under the condition that screen projection content exists on the first display device and screen projection content does not exist on the second display device, whether the screen projection content on the first display device needs to be adjusted or not is detected, so that the wireless fidelity WiFi transceiver can pertinently receive target data sent by the terminal, the processing efficiency of the screen projection data is finally improved, and resources are effectively saved.
In another possible implementation, the system further comprises a downloading unit;
if it is detected that the second to-be-screened data 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 terminal to send a source address of the second to-be-screened data, and the source address includes one or more of a name and an episode number of the second to-be-screened data;
the receiving unit 601 is further configured to receive a source address of the second data to be screened, where the source address is sent by the terminal;
the downloading unit is used for downloading the second data to be screened according to the source address;
the sending unit 602 is further configured to send the second to-be-screened data of the source address to the second display device.
In this embodiment of the application, after the WiFi transceiver sends the decoded first to-be-screen-projected data and the decoded second to-be-screen-projected data to the first display device, it may further detect whether the second to-be-screen-projected data on the second display device is played normally, and if it is detected that the playing of the second to-be-screen-projected data is interrupted, the WiFi transceiver may request the terminal to send a source address of the second to-be-screen-projected data, where the source address includes one or more of a name and an episode number of the second to-be-screen-projected data, and then the WiFi transceiver may download the second to-be-screen-projected data of the source address according to one or more of the name and the episode number of the second to-be-screen-projected data, and finally send the second to-be-screen-projected data of the source address to the second display device. According to the scheme, when the abnormal condition occurs and the playing of the second screen data to be projected is interrupted, the second screen data to be projected is downloaded in time according to the source address, so that the second screen data to be projected when the preset abnormal condition occurs are linked, the smoothness of video playing is improved, and the viewing experience of a user is guaranteed.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a WiFi transceiver 70 provided in this embodiment of the present application, such as a chip, a software module, an integrated circuit, and the like. The WiFi transceiver 70 may include at least one processor 701. Optionally, at least one memory 703 may also be included. Further optionally, the WiFi transceiver 70 may also include a communication interface 702. Still further optionally, a bus 704 may be included, wherein the processor 701, the communication interface 702, and the memory 703 are connected via the bus 704.
The processor 701 is a module for performing arithmetic operation and/or logical operation, and may specifically be one or a combination of multiple Processing modules, such as a Central Processing Unit (CPU), a picture Processing Unit (GPU), a Microprocessor (MPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), a Complex Programmable Logic Device (CPLD), a coprocessor (assisting the Central Processing Unit to complete corresponding Processing and Application), and a Micro Control Unit (MCU).
Communication interface 702 may be used to provide information input or output to the at least one processor. And/or, the communication interface 702 may be used to receive and/or transmit data externally, and may be a wired link interface such as an ethernet cable, and may also be a wireless link (Wi-Fi, bluetooth, general wireless transmission, vehicle-mounted short-range communication technology, other short-range wireless communication technologies, etc.) interface. Optionally, the communication interface 702 may also include a transmitter (e.g., a radio frequency transmitter, an antenna, etc.) or a receiver, etc. coupled to the interface.
The memory 703 is used to provide a storage space in which data such as an operating system and computer programs can be stored. The Memory 703 may be one or a combination of Random Access Memory (RAM), read-only Memory (ROM), erasable Programmable Read-only Memory (EPROM), or portable Read-only Memory (CD-ROM), among others.
The at least one processor 701 in the WiFi transceiver 70 is configured to perform the aforementioned method, such as the method described in the embodiment of fig. 3.
Alternatively, the processor 701 may be a processor dedicated to performing the methods (referred to as a special-purpose processor for convenience), or may be a processor that calls a computer program to perform the methods, such as a general-purpose processor. Optionally, the at least one processor may also include both special purpose and general purpose processors. Optionally, in case the computing device comprises at least one processor 701, the computer program described above may be stored in the memory 703.
Optionally, the at least one processor 701 in the WiFi transceiver 70 is configured to execute invoking computer instructions to perform the following operations:
receiving target data sent by a terminal under the condition that screen projection contents do not exist on first display equipment and second display equipment, wherein the terminal, the first display equipment and the second display equipment are added into a wireless local area network formed by a wireless fidelity WiFi transceiver, the target data comprise first screen data to be projected and second screen data to be projected, the first screen data to be projected are static image-text contents or dynamic video contents, the second screen data to be projected are dynamic video contents, and the target data carry a serial number identifier for projecting the first screen data to be projected on the first display equipment and a serial number identifier for projecting the second screen data to be projected on the second display equipment;
and sending the decoded first screen data to be projected to the first display device, and sending the decoded second screen data to be projected to the second display device.
In the prior art, currently, screen projection parameters for a video are mostly 4K/30 frames, so that the screen projection image quality is not high, and a user may have a multi-screen projection requirement in a scene such as a conference. Aiming at the condition of the requirement of multi-screen projection, under the condition that screen projection contents do not exist on a first display device and a second display device, a wireless fidelity WiFi transceiver receives target data sent by a terminal, wherein the target data comprises first screen data to be projected, the contents of which are static image-text contents or dynamic video contents, and second screen data to be projected, the contents of which are dynamic video contents, and the target data carries a serial number identifier for projecting the first screen data to be projected on the first display device and a serial number identifier for projecting the second screen data to be projected on the second display device; and finally, sending the decoded first data to be projected and the decoded second data to be projected to the first display device. The method and the device can improve the resolution and the frame rate of video data during screen projection.
Optionally, the processor 701 is further configured to:
under the condition that the content of the first data to be projected and the content of the second data to be projected are both the dynamic video content, converting the first data to be projected into first coded data with a protocol format of a USB protocol, and converting the second data to be projected into second coded data with a protocol format of the USB protocol;
decoding the first coded data through a computer accessory UGA to obtain decoded first to-be-projected-screen data;
and decoding the second coded data through the UGA to obtain the decoded second data to be projected.
In the embodiment of the application, when the content of the first screen data to be projected and the content of the second screen data to be projected are both dynamic video content (for example, the content of the first screen data to be projected is video design 1, and the content of the second screen data to be projected is video design 2), the WiFi transceiver may convert the first screen data to be projected (video design 1) into first encoded data with a protocol format of a USB protocol, and convert the second screen data to be projected (video design 2) into second encoded data with a protocol format of a USB protocol; and then decoding the first coded data through UGA to obtain decoded first data to be projected (video design 1), and decoding the second coded data through UGA to obtain decoded second data to be projected (video design 2). According to the scheme, the encoding data is decoded based on UGA, a plurality of display devices can be externally connected through the USB interface of the host, and display setting of each display device is realized.
Optionally, the processor 701 is further configured to:
under the condition that the content of the first data to be projected is the static image-text content and the content of the second data to be projected is the dynamic video content, converting the first data to be projected into the first coding data with a WiFi protocol;
decoding the first coded data according to a preset decoding mode to obtain decoded first to-be-projected-screen data;
converting the second screen data to be projected into the second coded data with a protocol format of a USB protocol;
and decoding the second coded data through the UGA to obtain the decoded second data to be projected.
In the embodiment of the application, under the condition that the content of the first screen data to be projected is static image-text content and the content of the second screen data to be projected is dynamic video content, the wireless fidelity WiFi transceiver can convert the first screen data to be projected into first coded data with a WiFi protocol, and then decode the first coded data according to a preset decoding mode to obtain the decoded first screen data to be projected. And then converting the second data to be projected into second coded data with a protocol format of a USB protocol, and decoding the second coded data through UGA to obtain the decoded second data to be projected. According to the scheme, different modes are adopted to encode and decode the first to-be-projected-screen data and the second to-be-projected-screen data in a targeted manner, and the processing efficiency of video data projection can be effectively improved.
Optionally, the processor 701 is further configured to:
determining that the first data to be screen-projected exists on the first display device under the conditions that the screen-projected content exists on the first display device and the screen-projected content does not exist on the second display device;
detecting whether the first screen data to be projected needs to be adjusted or not;
and if the adjustment is not needed, receiving the second to-be-projected-screen data sent by the terminal.
In this embodiment of the application, under the condition that the screen projection content exists on the first display device and the screen projection content does not exist on the second display device, if the wireless fidelity WiFi transceiver determines that the screen projection content existing on the first display device is the first data to be screen projected, the wireless fidelity WiFi transceiver may further detect whether the user adjusts the first data to be screen projected on the terminal, and if it is detected that the user does not adjust the first data to be screen projected on the terminal, that is, when the first data to be screen projected does not change, the wireless fidelity WiFi transceiver only needs to receive the second data to be screen projected sent by the terminal. According to the scheme, under the condition that screen projection content exists on the first display device and screen projection content does not exist on the second display device, whether the screen projection content on the first display device needs to be adjusted or not is detected, so that the wireless fidelity WiFi transceiver can pertinently receive target data sent by the terminal, the processing efficiency of the screen projection data is finally improved, and resources are effectively saved.
Optionally, the processor 701 is further configured to:
if the interruption of the second data to be screened on the second display device is detected, sending a request message to the terminal, wherein the request message is used for requesting the terminal to send a source address of the second data to be screened, and the source address comprises one or more of the name and the episode serial number of the second data to be screened;
receiving a source address of the second data to be screened sent by the terminal;
downloading the second data to be screened according to the source address;
and sending second data to be screened of the source address to the second display equipment.
In this embodiment of the application, after the WiFi transceiver sends the decoded first to-be-screen-projected data and the decoded second to-be-screen-projected data to the first display device, it may further detect whether the second to-be-screen-projected data on the second display device is played normally, and if it is detected that the playing of the second to-be-screen-projected data is interrupted, the WiFi transceiver may request the terminal to send a source address of the second to-be-screen-projected data, where the source address includes one or more of a name and an episode number of the second to-be-screen-projected data, and then the WiFi transceiver may download the second to-be-screen-projected data of the source address according to one or more of the name and the episode number of the second to-be-screen-projected data, and finally send the second to-be-screen-projected data of the source address to the second display device. According to the scheme, when the abnormal condition occurs and the playing of the second screen data to be projected is interrupted, the second screen data to be projected is downloaded in time according to the source address, so that the second screen data to be projected when the preset abnormal condition occurs are linked, the smoothness of video playing is improved, and the viewing experience of a user is guaranteed.
The present application also provides a computer-readable storage medium having instructions stored therein, which when executed on at least one processor, implement a multi-screen projection method as described above, such as the method described in fig. 3.
The present application also provides a computer program product comprising computer instructions that, when executed by a computing device, implement the aforementioned multi-screen projection method, such as the method described in fig. 3.
In the embodiments of the present application, words such as "for example" or "like" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "for example" or "such as" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the words "for example" or "such as" are intended to present relevant concepts in a concrete fashion.
In the present application, the embodiments refer to "at least one" and "a plurality" and two or more. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) 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), wherein a, b and c can be single or multiple. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a alone, both A and B, and B alone, wherein A, B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
And unless stated to the contrary, the ordinal numbers such as "first", "second", etc. are used in the embodiments of the present application to distinguish a plurality of objects and are not used to limit the sequence, timing, priority, or importance of the plurality of objects. For example, a first device and a second device are for convenience of description only and do not indicate a difference in structure, importance, etc. of the first device and the second device, and in some embodiments, the first device and the second device may be the same device.
As used in the above embodiments, the term "when … …" may be interpreted to mean "if … …" or "after … …" or "in response to determination … …" or "in response to detection of … …", depending on the context. The above description is only exemplary of the present application and is not intended to limit the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present application are intended to be included within the scope of the present application.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and those skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A multi-screen projection method is applied to a wireless fidelity (WiFi) transceiver, and comprises the following steps:
under the condition that screen projection contents do not exist on first display equipment and second display equipment, receiving target data sent by a terminal, wherein the terminal, the first display equipment and the second display equipment are added into a wireless local area network formed by a wireless fidelity WiFi transceiver, the target data comprise first to-be-screen-projected data and second to-be-screen-projected data, the first to-be-screen-projected data are static image-text contents or dynamic video contents, the second to-be-screen-projected data are dynamic video contents, and the target data carry a serial number identifier for projecting the first to-be-screen-projected data on the first display equipment and a serial number identifier for projecting the second to-be-screen-projected data on the second display equipment;
and sending the decoded first screen data to be projected to the first display device, and sending the decoded second screen data to be projected to the second display device.
2. The method according to claim 1, wherein in a case that no screen-casting content exists on the first display device and the second display device, after receiving target data sent by a terminal, before sending decoded first screen-casting data to the first display device and sending decoded second screen-casting data to the second display device, the method further comprises:
under the condition that the content of the first data to be projected and the content of the second data to be projected are both the dynamic video content, converting the first data to be projected into first coded data with a protocol format of a USB protocol, and converting the second data to be projected into second coded data with a protocol format of the USB protocol;
decoding the first coded data through a computer accessory UGA to obtain decoded first to-be-projected-screen data;
and decoding the second coded data through the UGA to obtain the decoded second data to be projected.
3. The method according to claim 1 or 2, wherein after receiving target data sent by a terminal in a case that no screen-casting content exists on the first display device and the second display device, before sending the decoded first screen-to-be-cast data to the first display device and sending the decoded second screen-to-be-cast data to the second display device, the method further comprises:
under the condition that the content of the first data to be projected is the static image-text content and the content of the second data to be projected is the dynamic video content, converting the first data to be projected into the first coding data with a WiFi protocol;
decoding the first coded data according to a preset decoding mode to obtain decoded first to-be-projected-screen data;
converting the second screen data to be projected into the second coded data with a protocol format of a USB protocol;
and decoding the second coded data through the UGA to obtain the decoded second data to be projected.
4. The method of claim 1, further comprising:
determining that the first screen to be projected data exists on the first display device under the condition that the screen projection content exists on the first display device and the screen projection content does not exist on the second display device;
detecting whether the first screen data to be projected needs to be adjusted or not;
and if the adjustment is not needed, receiving the second screen to be projected data sent by the terminal.
5. The method according to claim 1 or 2, wherein after sending the decoded first data to be projected to the first display device and sending the decoded second data to be projected to the second display device, further comprising:
if the interruption of the second data to be screened on the second display device is detected, sending a request message to the terminal, wherein the request message is used for requesting the terminal to send a source address of the second data to be screened, and the source address comprises one or more of the name and the episode serial number of the second data to be screened;
receiving a source address of the second data to be screened sent by the terminal;
downloading the second data to be screened according to the source address;
and sending second to-be-screened data of the source address to the second display device.
6. A multi-screen projection device is characterized by comprising a receiving unit and a sending unit, wherein:
the receiving unit is used for receiving target data sent by a terminal under the condition that screen-casting contents do not exist on a first display device and a second display device, wherein the terminal, the first display device and the second display device are added into a wireless local area network established by a wireless fidelity WiFi transceiver, the target data comprise first screen-casting data and second screen-casting data, the first screen-casting data are static image-text contents or dynamic video contents, the second screen-casting data are dynamic video contents, and the target data carry a number identifier for screen-casting the first screen-casting data on the first display device and a number identifier for screen-casting the second screen-casting data on the second display device;
the sending unit is used for sending the decoded first screen data to be projected to the first display device and sending the decoded second screen data to be projected to the second display device.
7. The apparatus of claim 6, further comprising a conversion unit and a decoding unit;
the conversion unit is used for converting the first screen data to be projected into first coded data with a protocol format of a USB protocol and converting the second screen data to be projected into second coded data with a protocol format of the USB protocol under the condition that the content of the first screen data to be projected and the content of the second screen data to be projected are both the dynamic video content;
the decoding unit is used for decoding the first coded data through a computer accessory UGA to obtain the decoded first data to be projected; and the UGA is further used for decoding the second coded data to obtain the decoded second data to be projected.
8. The apparatus according to claim 6 or 7, further comprising a conversion unit and a decoding unit;
the conversion unit is configured to convert the first screen data to be projected into the first encoded data of which the protocol format is a WiFi protocol, when the content of the first screen data to be projected is the static image-text content and the content of the second screen data to be projected is the dynamic video content;
the decoding unit is used for decoding the first coded data according to a preset decoding mode to obtain the decoded first data to be projected;
the conversion unit is further configured to convert the second to-be-projected-screen data into the second encoded data having a protocol format of a USB protocol;
the decoding unit is further configured to decode the second encoded data through the UGA to obtain the decoded second data to be projected.
9. A wireless fidelity (WiFi) transceiver, wherein the device comprises a processor and a memory, the memory storing computer instructions, the processor being configured to invoke the computer instructions to implement the method of any one of claims 1-5.
10. A computer-readable storage medium having stored therein instructions which, when executed on at least one processor, implement the method of any one of claims 1-5.
CN202211124007.5A 2022-09-15 2022-09-15 Multi-screen projection method and device Pending CN115623069A (en)

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CN202211124007.5A CN115623069A (en) 2022-09-15 2022-09-15 Multi-screen projection method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211124007.5A CN115623069A (en) 2022-09-15 2022-09-15 Multi-screen projection method and device

Publications (1)

Publication Number Publication Date
CN115623069A true CN115623069A (en) 2023-01-17

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