CN117676211A - Screen projection method, screen projection system and storage medium - Google Patents

Screen projection method, screen projection system and storage medium Download PDF

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Publication number
CN117676211A
CN117676211A CN202311440960.5A CN202311440960A CN117676211A CN 117676211 A CN117676211 A CN 117676211A CN 202311440960 A CN202311440960 A CN 202311440960A CN 117676211 A CN117676211 A CN 117676211A
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China
Prior art keywords
screen
screen projection
projector
projection
throwing
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CN202311440960.5A
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Chinese (zh)
Inventor
李少鹏
王奎
时冲
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Shenzhen Kaihong Digital Industry Development Co Ltd
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Shenzhen Kaihong Digital Industry Development Co Ltd
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Priority to CN202311440960.5A priority Critical patent/CN117676211A/en
Publication of CN117676211A publication Critical patent/CN117676211A/en
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Abstract

The application provides a screen projection method, a screen projection system and a storage medium, and aims to solve the problem that the existing wireless screen projection method is complicated in use steps and simultaneously limits more sexualization operations of a user in the screen projection process. The method is applied to a projector of a screen projection system, the screen projection system comprises a plurality of screen projection terminals, a projector and a screen, the projector and the screen projection terminals are connected through a distributed soft bus, and the projector is used for projecting the screen to be projected. The method comprises the steps of obtaining screen projection request information sent by a plurality of screen projection terminals, wherein the screen projection request information comprises screen projection pictures; arranging a plurality of screen throwing pictures to generate a screen throwing interface; and (3) screen-casting the screen-casting interface to the screen to finish screen-casting the screen. And the projector is used for distributing a plurality of screen projection pictures to generate corresponding screen projection interfaces to project the screen, so that wireless screen projection of a plurality of screen projection terminals can be realized, and more personalized operations of a user in the screen projection process are supported while the wireless screen projection steps are simplified.

Description

Screen projection method, screen projection system and storage medium
Technical Field
The application relates to the field of distributed technology application, in particular to a screen projection method, a screen projection system and a storage medium.
Background
At present, a projector is used for projecting a picture of a screen projecting terminal onto a screen, and the screen projecting terminal is widely applied to scenes such as conference offices, video entertainment, network education, advertisement popularization and the like. The conventional apparatus requires an external computer, and the projector and the computer are connected by an HDMI (High Definition Multimedia Interface, high-definition multimedia interface) line, so that the method of transmitting the computer image to the projector is not ideal in terms of convenience and user experience.
With the development of communication technology, wireless screen-throwing technology is widely used, and the wireless screen-throwing technology is to throw and display various media information or real-time operation pictures of one device on a screen. When the screen projection equipment is inconsistent with the operating system carried by the projector, the conventional wireless screen projection method realizes the transmission of screen projection data by downloading an application program supporting data interaction between specific operating systems, and more personalized operations of a user in the screen projection process are limited while the using steps are complicated.
Disclosure of Invention
The application provides a screen projection method, a screen projection system and a storage medium, and aims to solve the problem that when a screen projection device is inconsistent with an operating system carried by a projector, the conventional wireless screen projection method realizes the transmission of screen projection data by downloading an application program supporting data interaction between specific operating systems, and the problem that more sexualization operations of a user in the screen projection process are limited while the using steps are complicated.
In a first aspect, the present application provides a screen projection method, which is applied to a projector of a screen projection system, where the screen projection system includes a plurality of screen projection terminals, a projector and a screen, the projector and the screen projection terminals are connected through a distributed soft bus, and the projector is used for projecting a screen to be projected onto the screen; the method comprises the following steps:
acquiring screen projection request information sent by a plurality of screen projection terminals, wherein the screen projection request information comprises screen projection pictures;
arranging a plurality of screen throwing pictures to generate a screen throwing interface;
and the screen-throwing interface is used for throwing the screen to the screen, so that the screen throwing of the screen is completed.
In some embodiments, the screen projection request information further includes a timestamp of the screen projection request information sent by the screen projection terminal to the projector; arranging a plurality of screen throwing pictures, comprising: arranging the screen throwing pictures according to the time stamps corresponding to the screen throwing pictures; the preset rule is to prioritize the screen projection pictures with the time stamps in front.
In some embodiments, the projector and the projection terminal are onboard an operating system; the screen throwing request information also comprises level information of an operating system carried by the screen throwing terminal, wherein the level information at least comprises a first level and a second level, and the first level is higher than the second level; the step of arranging the plurality of screen projection pictures to generate a screen projection interface comprises the following steps: generating a plurality of screen throwing areas, wherein the screen throwing areas comprise a first screen throwing area and a second screen throwing area, and the area of the first screen throwing area is larger than that of the second screen throwing area; adding a screen projection picture corresponding to the level information of the first level in the first screen projection area, and adding a screen projection picture corresponding to the level information of the second level in the second screen projection area; and generating the screen projection interface according to the first screen projection area and the second screen projection area after the screen projection picture is added.
In some embodiments, the screen-casting request information further includes audio information of the screen-casting screen; the screen projection interface is projected to the screen, the screen projection of the screen is completed, and the screen projection method comprises the following steps: and the screen projection interface is projected to the screen, and the audio information corresponding to the level information of the first level is played, so that the screen projection of the screen is completed.
In some embodiments, the arranging the plurality of screen shots to generate the screen shot interface includes: and arranging the screen projection pictures corresponding to the level information of the first level to generate a screen projection interface.
In some embodiments, the projection screen system further comprises a sub-projector and a sub-screen corresponding to the sub-projector, wherein the projector and the sub-projector are connected through a distributed soft bus; the method further comprises the steps of: and sending the screen projection interface to the sub projector so that the sub projector projects the screen projection interface to the sub screen to finish the screen projection of the sub screen.
In some embodiments, the screen projection request information further includes location information of the screen projection terminal; the screen projection interface comprises a first screen projection interface and a second screen projection interface, wherein the first screen projection interface is used for projecting a screen to the screen, and the second screen projection interface is used for projecting a screen to the sub-screen; the step of arranging the plurality of screen projection pictures to generate a screen projection interface comprises the following steps: acquiring position information of the sub-projector sent by the sub-projector; acquiring position information of the projector; calculating a first distance between the projector and the screen projection terminal according to the position information of the projector and the position information of the screen projection terminal; calculating a second distance between the projector and the screen projection terminal according to the position information of the sub-projector and the position information of the screen projection terminal; generating the first screen projection interface according to the screen projection picture of which the first distance is smaller than or equal to the second distance; and generating the second screen projection interface according to the screen projection picture of which the second distance is smaller than the first distance.
In some embodiments, the projector stores a preset projection terminal information base; the method further comprises the steps of: when the distance between the screen projection terminal and the screen projection terminal is detected to be smaller than a preset distance, acquiring identification information of the screen projection terminal; and verifying the identification information based on the preset screen-throwing terminal information base, and connecting the screen-throwing terminal with the screen-throwing terminal through a distributed soft bus after the verification is passed, so that the screen of the screen-throwing picture of the screen-throwing terminal can be thrown to the screen.
In some embodiments, after the screen is projected onto the screen by the projection screen interface, the method includes obtaining clock information of the projector; acquiring clock information of the screen-throwing terminal; generating correction information according to the clock information of the projector and the clock information of the screen projection terminal; and correcting the time stamp of the screen projection picture corresponding to the screen projection terminal according to the correction information.
In a second aspect, the present application provides a screen projection system, including a plurality of screen projection terminals, a projector, and a screen, where the projector and the screen projection terminals are connected through a distributed soft bus, and the projector is used for projecting a screen to be projected onto the screen; the projector further comprises a processor, a memory, and a computer program stored on the memory and executable by the processor, wherein the memory stores a policy model, and the computer program realizes the steps of the screen projection method provided by any embodiment of the application when the computer program is executed by the processor.
In a third aspect, embodiments of the present application provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, causes the processor to implement the steps of a method of screening as provided by any of the embodiments of the present application.
The application provides a screen projection method, a screen projection system and a storage medium, wherein the method is applied to a projector of the screen projection system, the screen projection system comprises a plurality of screen projection terminals, a projector and a screen, the projector and the screen projection terminals are connected through a distributed soft bus, and the projector is used for projecting the screen to be projected. The method comprises the steps of obtaining screen projection request information sent by a plurality of screen projection terminals, wherein the screen projection request information comprises screen projection pictures; arranging a plurality of screen throwing pictures to generate a screen throwing interface; and the screen-throwing interface is used for throwing the screen to the screen, so that the screen throwing of the screen is completed. And the projector is used for distributing a plurality of screen projection pictures to generate corresponding screen projection interfaces to project the screen, so that wireless screen projection of a plurality of screen projection terminals can be realized, and more personalized operations of a user in the screen projection process are supported while the wireless screen projection steps are simplified.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic block diagram of a distributed soft bus provided by an embodiment of the present application;
FIG. 2 is a schematic block diagram of a screen projection system provided in an embodiment of the present application;
FIG. 3 is a schematic flowchart of steps of a screen projection method according to an embodiment of the present application;
fig. 4 is a networking schematic diagram of a projector and a screen terminal according to an embodiment of the present application;
FIG. 5 is a schematic flowchart of steps of a distributed soft bus connection method according to an embodiment of the present application;
fig. 6 is a schematic view of a multi-screen terminal according to an embodiment of the present application;
FIG. 7 is a schematic flow chart of steps of a clock correction method according to an embodiment of the present application
Fig. 8 is a schematic block diagram of a projector according to an embodiment of the present application.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The flow diagrams depicted in the figures are merely illustrative and not necessarily all of the elements and operations/steps are included or performed in the order described. For example, some operations/steps may be further divided, combined, or partially combined, so that the order of actual execution may be changed according to actual situations.
It is to be understood that the terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same item or similar items having substantially the same function and effect. For example, the first screen-throwing device and the second screen-throwing device are only used for distinguishing different screen-throwing devices, and the sequence of the first screen-throwing device and the second screen-throwing device is not limited. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In order to facilitate understanding of the embodiments of the present application, some of the words referred to in the embodiments of the present application are briefly described below.
1. Distributed soft bus: as shown in fig. 1, fig. 1 is a schematic block diagram of a distributed soft bus provided in an embodiment of the present application. A distributed soft bus is a virtual, "intangible" bus. All system equipment developed based on Kai hongOS system in a local area network can be connected, and the system equipment has the characteristics of self discovery, self networking, high bandwidth, low time delay and the like. In addition to connecting hardware devices in the same network protocol, the soft bus technology also supports networking heterogeneous networks of different protocols.
The open source hong Monte system is a brand new system oriented to the universal interconnection era, and provides brand new distributed comprehensive capability on the basis of the capability of the traditional single-equipment system so as to better adapt to the next generation application scenes of multiple equipment, multiple tasks and multiple data.
Distributed soft bus: the distributed soft bus provides discovery and connection functions among devices based on the synergy of the Ethernet, WI FI and Bluetooth; after the devices find each other and connect, the distributed soft bus re-manages the ad hoc network and topology relationship between the devices. The distributed soft bus realizes unified distributed communication management capability among near field devices, provides discovery connection, networking and transmission capability among devices without distinguishing links, and has the main functions as follows:
1) Connection is found: device discovery connection capability based on WI FI, bluetooth, etc. communication modes is provided.
2) Equipment networking: unified device networking and topology management capabilities are provided, and networking device information is provided for data transmission.
3) Data transmission: and providing a data transmission channel, and supporting the capabilities of message, byte data transmission and the like.
Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
At present, a projector is used for projecting a picture of a screen projecting terminal onto a screen, and the screen projecting terminal is widely applied to scenes such as conference offices, video entertainment, network education, advertisement popularization and the like. The conventional projector needs an external computer, and the projector and the computer are connected by an HDMI (High Definition Multimedia Interface, high-definition multimedia interface) line, so that the method of transmitting the computer image to the projector is not ideal in terms of convenience and user experience.
With the development of communication technology, wireless screen-throwing technology is widely used, and the wireless screen-throwing technology is to throw and display various media information or real-time operation pictures of one device on a screen. When the screen-throwing equipment is inconsistent with the operating system carried by the projector, the conventional wireless screen-throwing method realizes the transmission of screen-throwing data by downloading an application program supporting data interaction between specific operating systems, and limits more personalized operations of a user in the screen-throwing process while complicating the use steps
In order to solve the above-mentioned problems, referring to fig. 2, fig. 2 is a schematic block diagram of a screen projection system 10 according to an embodiment of the present application. In fig. 2, a screen projection system 10 is provided that includes a plurality of screen projection terminals 11, a projector 12, and a screen 13, the projector 12 and the screen projection terminals 11 being connected by a distributed soft bus. Wherein projector 12 is used to implement the steps of the screen projection method provided in any of the embodiments of the present application.
Specifically, the projector 12 is connected with the projection screen terminal 11 through a distributed soft bus, so that the projector 12 can perform self-discovery, connection and data transmission on the projection screen terminal 11 at high speed and stably. The projector 12 automatically discovers the projection screen terminal 11 through a distributed soft bus, thereby constructing a heterogeneous network networking and solving the problem of interaction of different protocols among devices. When projector 12 approaches to projector terminal 11, projector 12 is found by projector terminal 11 and automatically forms a network for some necessary information interactions (e.g. device identification, supported communication medium Wi-Fi, bluetooth or ethernet, etc.).
In some embodiments, projector 12 is loaded with a first level of operating system. The operating system may be any operating system, for example, the operating system may be HarmonyOS, and the operating system may also be KaihongOS. The present application is presented with respect to Kaihong OS.
In some embodiments, the screen terminal 11 carries a kaihong os. In some embodiments, the cast screen terminal 11 is not equipped with a kaihong os. Through the screen projection system 10 provided in the embodiment of the present application, the screen projection method provided in the embodiment of the present application can be implemented by the screen projection terminal 11 with or without the kaihong os, so the embodiment of the present application does not limit the type of the operating system carried by the screen projection terminal 11.
The Kaihong OS divides the devices into 6 classes, L 0 To L 5 Wherein L is 5 At the highest level, L 0 For the lowest-level, i.e., lightweight system, the level in the kaihong os mounted on the projector 12 is higher than or equal toThe level in the kaihong os carried by the screen terminal 11 can enable the constructed screen projection system 10 to implement the screen projection method provided in any embodiment of the present application.
When the level of the kaihong os mounted on the screen terminal 11 is higher than the level of the kaihong os mounted on the projector 12, the screen terminal 11 can control the screen projected by the projector 12.
The screen projection terminal 11 may be a notebook computer, the screen projection terminal 11 may be a mobile phone, and the screen projection terminal 11 may be a tablet computer.
In some embodiments, projector 12 is connected to projection terminal 11 via the MQTT protocol. In some embodiments, projector 12 is connected to projection terminal 11 via the bluetooth protocol. In some embodiments, projector 12 is connected to projection terminal 11 via a WIFI protocol. The projector 12 and the screen projection terminal 11 can complete data interaction between the projector 12 and the screen projection terminal 11 across the operating system only by connecting the projector 12 and the screen projection terminal 11 through a connection protocol adapted by the screen projection terminal 11, so the connection protocol types of the projector 12 and the screen projection terminal 11 are not limited in the embodiment of the application.
The embodiment of the application provides a screen projection system, which comprises a screen projection terminal and a projector, wherein the screen projection terminal is connected with the projector through a distributed soft bus. Therefore, through the screen projection system provided by the embodiment of the application, wireless screen projection of a plurality of screen projection terminals can be realized.
Referring to fig. 3, fig. 3 is a schematic flowchart illustrating steps of a screen projection method according to an embodiment of the present application. The screen projection method is applied to the screen projection system provided by any embodiment of the application.
As shown in fig. 3, the provided screen projection method includes steps S101 to S103.
S101, screen projection request information sent by a plurality of screen projection terminals is obtained, and the screen projection request information comprises screen projection pictures.
Specifically, after the projector and the plurality of screen projection terminals realize the self discovery of the equipment based on the distributed soft bus, the heterogeneous network networking can be constructed based on the distributed soft bus, so that the problem of interaction of different protocols among the equipment is solved. When the projector approaches to the screen projection terminal, the projector will find the screen projection terminal and automatically form a network, as shown in fig. 4, and fig. 4 is a schematic diagram of the networking of the projector and the screen projection terminal. And the screen projection terminal can send screen projection request information comprising the screen projection picture to the projector.
In some embodiments, the projector stores a library of preset projection terminal information. Referring to fig. 5, fig. 5 is a schematic flowchart illustrating steps of a distributed soft bus connection method according to an embodiment of the present application.
As shown in fig. 5, the provided distributed soft bus connection method includes steps S201 to S202.
S201, when the distance between the screen projection terminal and the screen projection terminal is detected to be smaller than a preset distance, acquiring identification information of the screen projection terminal.
S202, verifying the identification information based on a preset screen-throwing terminal information base, and connecting the screen-throwing terminal with the screen-throwing terminal through a distributed soft bus after the identification information passes so as to throw the screen of the screen-throwing terminal to the screen.
When the distance between the projector and the screen projection terminal is smaller than the preset distance, for example, when the preset distance is 10m, the distance between the projector and the screen projection terminal is 5m. The projector can find the screen projection terminal and automatically form a network, so that information interaction between the screen projection terminal and the screen projection equipment is realized, for example, screen projection request information is sent to the projector.
In some embodiments, after the projector connects with the plurality of projection terminals based on the distributed soft bus, the provided method further comprises: and acquiring screen projection request information sent by a screen projection terminal, wherein the screen projection request information comprises media stream information. The screen-throwing request information is used for requesting to throw the media stream information into a screen.
S102, arranging a plurality of screen projection pictures to generate a screen projection interface.
Specifically, as shown in fig. 6, fig. 6 is a schematic view of a multi-screen terminal according to an embodiment of the present application. As shown in fig. 6, when two devices are present to throw a screen, a screen throwing picture of 2 devices needs to be thrown into the screen, and at this time, the projector can intelligently arrange the pictures, so that synchronous screen throwing of a plurality of screen throwing devices is realized.
S103, screen projection is carried out on the screen projection interface to the screen, and screen projection on the screen is completed.
Specifically, the projector is used for arranging a plurality of screen projection pictures to generate corresponding screen projection interfaces to project the screen, so that wireless screen projection of a plurality of screen projection terminals can be realized, and more personalized operations of a user in the screen projection process are supported while the wireless screen projection step is simplified.
In some embodiments, the screen projection request information further includes a timestamp of the screen projection request information sent by the screen projection terminal to the projector; arranging a plurality of screen throwing pictures, comprising: arranging the screen throwing pictures according to the time stamps corresponding to the screen throwing pictures; the preset rule is to prioritize the screen projection pictures with the time stamps in front.
The sequence of the screen projection terminal sending the screen projection request information to the projector is determined according to the time stamp corresponding to the screen projection picture, so that the projector is ensured to be capable of normally sequencing the screen projection picture.
In some embodiments, the projector and the projection terminal are onboard an operating system; the screen throwing request information also comprises level information of an operating system carried by the screen throwing terminal, wherein the level information at least comprises a first level and a second level, and the first level is higher than the second level; the step of arranging the plurality of screen projection pictures to generate a screen projection interface comprises the following steps: generating a plurality of screen throwing areas, wherein the screen throwing areas comprise a first screen throwing area and a second screen throwing area, and the area of the first screen throwing area is larger than that of the second screen throwing area; adding a screen projection picture corresponding to the level information of the first level in the first screen projection area, and adding a screen projection picture corresponding to the level information of the second level in the second screen projection area; and generating the screen projection interface according to the first screen projection area and the second screen projection area after the screen projection picture is added.
When projector and projection screen terminalWhen the terminal is loaded with an operating system, such as Kaihong OS, the terminal uses the level information, such as L, of the screen terminal in the Kaihong OS 0 To L 5 And the screen of the screen-throwing terminal of the higher level is preferentially thrown. The screen projection process of the high-authority user can be ensured not to be influenced.
Illustratively, the screen-casting request information further includes audio information of the screen-casting screen; the screen projection interface is projected to the screen, the screen projection of the screen is completed, and the screen projection method comprises the following steps: and the screen projection interface is projected to the screen, and the audio information corresponding to the level information of the first level is played, so that the screen projection of the screen is completed.
If the audio information of a plurality of screen projection pictures is played simultaneously, the screen projection effect is poor, so that the projector can ensure that the method provided by the application can smoothly run in the screen projection process of the multi-screen projection terminal by preferentially playing the audio information of the high-level screen projection terminal.
Exemplary, the arranging the plurality of screen projection pictures to generate a screen projection interface includes: and arranging the screen projection pictures corresponding to the level information of the first level to generate a screen projection interface.
When the screen-throwing terminal with higher level is in existence for screen throwing, the screen-throwing method can be adopted to preferentially throw the screen of the picture corresponding to the screen-throwing terminal with higher level, so that important content can be displayed by the screen throwing.
In some embodiments, the projection screen system further comprises a sub-projector and a sub-screen corresponding to the sub-projector, wherein the projector and the sub-projector are connected through a distributed soft bus; the method further comprises the steps of: and sending the screen projection interface to the sub projector so that the sub projector projects the screen projection interface to the sub screen to finish the screen projection of the sub screen.
When the method provided by the application is applied to a large-scale meeting place, the meeting place can comprise a plurality of sub-projectors and corresponding display screens, so that screen projection of a screen projection interface can be controlled to be finished on the projectors, and the screen projection range of the method is improved.
The screen projection request information further comprises position information of the screen projection terminal; the screen projection interface comprises a first screen projection interface and a second screen projection interface, wherein the first screen projection interface is used for projecting a screen to the screen, and the second screen projection interface is used for projecting a screen to the sub-screen; the step of arranging the plurality of screen projection pictures to generate a screen projection interface comprises the following steps: acquiring position information of the sub-projector sent by the sub-projector; acquiring position information of the projector; calculating a first distance between the projector and the screen projection terminal according to the position information of the projector and the position information of the screen projection terminal; calculating a second distance between the projector and the screen projection terminal according to the position information of the sub-projector and the position information of the screen projection terminal; generating the first screen projection interface according to the screen projection picture of which the first distance is smaller than or equal to the second distance; and generating the second screen projection interface according to the screen projection picture of which the second distance is smaller than the first distance.
In the screen projection method provided by the application, after receiving the screen projection picture sent by the screen projection terminal, the projector can also intelligently sense the sub-projector closest to the screen projection terminal, so that the user corresponding to the screen projection terminal can see the screen projection content more clearly. Improving the applicability of the provided method.
In some embodiments, after the screen is projected onto the screen by the screen projection interface, please refer to fig. 7, fig. 7 is a schematic flowchart of a clock correction method according to an embodiment of the present application.
As shown in fig. 7, the provided clock correction method includes steps S301 to S304.
S301, acquiring clock information of the projector.
S302, clock information of the screen-throwing terminal is obtained.
S303, generating correction information according to the clock information of the projector and the clock information of the screen projection terminal.
S304, correcting the time stamp of the screen projection picture corresponding to the screen projection terminal according to the correction information
The projector can correct clock information of each first screen terminal based on a distributed soft clock technology according to the clock of the projector as a standard clock, and time synchronization of the screen terminal and the projector is accurately controlled, so that the precision of the distributed soft clock can reach 1ms. And based on the cooperation of the distributed soft clock algorithm and the transmission layer, the precision of the distributed soft clock can reach 500us, and based on the cooperation of the distributed soft clock algorithm, the transmission layer and the physical layer, the precision of the distributed soft clock is smaller than 300us, so that the screen is rendered and played according to the time stamp of the video frame image after receiving the screen-throwing interface sent by the projector. Because the screen projection terminal is synchronous with the projector clock, a plurality of screen projection terminals can simultaneously display images of the same frame picture. Avoiding the phenomenon of asynchronous picture.
The screen projection method is adopted to arrange a plurality of screen projection pictures through the projector, a corresponding screen projection interface screen projection is generated to the screen, wireless screen projection of a plurality of screen projection terminals can be achieved, and a user is supported to achieve more personalized operation in the screen projection process while the wireless screen projection step is simplified.
The application provides a projector. As shown in fig. 8, fig. 8 is a schematic block diagram of a projector according to an embodiment of the present application.
The projector may include a processor, a memory, and a network interface, among others. The processor, memory and network interface are connected by a system bus, such as an I2C (Inter-integrated Circuit) bus.
Specifically, the processor may be a Micro-controller Unit (MCU), a central processing Unit (Central Processing Unit, CPU), a digital signal processor (Digital Signal Processor, DSP), or the like.
Specifically, the Memory may be a Flash chip, a Read-Only Memory (ROM) disk, an optical disk, a U-disk, a removable hard disk, or the like.
The network interface is used for network communication such as transmitting assigned tasks and the like. It will be appreciated by those skilled in the art that the structure shown in fig. 8 is merely a block diagram of a portion of the structure associated with the present application and is not limiting of the controller to which the present application is applied, and that a particular projector may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
The processor is configured to run a computer program stored in the memory, and implement corresponding steps in any one of the screen projection methods provided in the embodiments of the present application when the computer program is executed.
An exemplary provided screen terminal is for the steps of:
and acquiring screen projection request information sent by a plurality of screen projection terminals, wherein the screen projection request information comprises screen projection pictures.
And arranging a plurality of screen throwing pictures to generate a screen throwing interface.
And the screen-throwing interface is used for throwing the screen to the screen, so that the screen throwing of the screen is completed.
In some embodiments, the screen projection request information further includes a timestamp of the screen projection request information sent by the screen projection terminal to the projector; arranging a plurality of screen throwing pictures, comprising: arranging the screen throwing pictures according to the time stamps corresponding to the screen throwing pictures; the preset rule is to prioritize the screen projection pictures with the time stamps in front.
In some embodiments, the projector and the projection terminal are onboard an operating system; the screen throwing request information also comprises level information of an operating system carried by the screen throwing terminal, wherein the level information at least comprises a first level and a second level, and the first level is higher than the second level; the step of arranging the plurality of screen projection pictures to generate a screen projection interface comprises the following steps: generating a plurality of screen throwing areas, wherein the screen throwing areas comprise a first screen throwing area and a second screen throwing area, and the area of the first screen throwing area is larger than that of the second screen throwing area; adding a screen projection picture corresponding to the level information of the first level in the first screen projection area, and adding a screen projection picture corresponding to the level information of the second level in the second screen projection area; and generating the screen projection interface according to the first screen projection area and the second screen projection area after the screen projection picture is added.
In some embodiments, the screen-casting request information further includes audio information of the screen-casting screen; the screen projection interface is projected to the screen, the screen projection of the screen is completed, and the screen projection method comprises the following steps: and the screen projection interface is projected to the screen, and the audio information corresponding to the level information of the first level is played, so that the screen projection of the screen is completed.
In some embodiments, the arranging the plurality of screen shots to generate the screen shot interface includes: and arranging the screen projection pictures corresponding to the level information of the first level to generate a screen projection interface.
In some embodiments, the projection screen system further comprises a sub-projector and a sub-screen corresponding to the sub-projector, wherein the projector and the sub-projector are connected through a distributed soft bus; the method further comprises the steps of: and sending the screen projection interface to the sub projector so that the sub projector projects the screen projection interface to the sub screen to finish the screen projection of the sub screen.
In some embodiments, the screen projection request information further includes location information of the screen projection terminal; the screen projection interface comprises a first screen projection interface and a second screen projection interface, wherein the first screen projection interface is used for projecting a screen to the screen, and the second screen projection interface is used for projecting a screen to the sub-screen; the step of arranging the plurality of screen projection pictures to generate a screen projection interface comprises the following steps: acquiring position information of the sub-projector sent by the sub-projector; acquiring position information of the projector; calculating a first distance between the projector and the screen projection terminal according to the position information of the projector and the position information of the screen projection terminal; calculating a second distance between the projector and the screen projection terminal according to the position information of the sub-projector and the position information of the screen projection terminal; generating the first screen projection interface according to the screen projection picture of which the first distance is smaller than or equal to the second distance; and generating the second screen projection interface according to the screen projection picture of which the second distance is smaller than the first distance.
In some embodiments, the projector stores a preset projection terminal information base; the method further comprises the steps of: when the distance between the screen projection terminal and the screen projection terminal is detected to be smaller than a preset distance, acquiring identification information of the screen projection terminal; and verifying the identification information based on the preset screen-throwing terminal information base, and connecting the screen-throwing terminal with the screen-throwing terminal through a distributed soft bus after the verification is passed, so that the screen of the screen-throwing picture of the screen-throwing terminal can be thrown to the screen.
In some embodiments, after the screen is projected onto the screen by the projection screen interface, the method includes obtaining clock information of the projector; acquiring clock information of the screen-throwing terminal; generating correction information according to the clock information of the projector and the clock information of the screen projection terminal; and correcting the time stamp of the screen projection picture corresponding to the screen projection terminal according to the correction information.
It should be noted that, for convenience and brevity of description, specific working processes of the above-described computer device may refer to corresponding processes in the foregoing distributed screen projection method, which are not described herein again.
The embodiment of the application also provides a computer readable storage medium, the computer readable storage medium stores a computer program, the computer program includes program instructions, and a processor executes the program instructions to implement the steps of the screen projection method provided in the above embodiment. For example, the computer program is loaded by a processor, the following steps may be performed:
and acquiring screen projection request information sent by a plurality of screen projection terminals, wherein the screen projection request information comprises screen projection pictures.
And arranging a plurality of screen throwing pictures to generate a screen throwing interface.
And the screen-throwing interface is used for throwing the screen to the screen, so that the screen throwing of the screen is completed.
The specific implementation of each operation above may be referred to the previous embodiments, and will not be described herein.
The computer readable storage medium may be an internal storage unit of the computer device of the foregoing embodiment, for example, a hard disk or a memory of the computer device. The computer readable storage medium may also be an external storage device of a computer device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), etc. provided on the computer device.
Because the computer program stored in the computer readable storage medium can execute any screen projection method provided in the embodiments of the present application, the beneficial effects that any screen projection method provided in the embodiments of the present application can be achieved, and detailed descriptions of the previous embodiments are omitted herein.
The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments. The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any equivalent modifications or substitutions will be apparent to those skilled in the art within the scope of the present application, and these modifications or substitutions should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (11)

1. The screen projection method is characterized by being applied to a projector of a screen projection system, wherein the screen projection system comprises a plurality of screen projection terminals, a projector and a screen, the projector and the screen projection terminals are connected through a distributed soft bus, and the projector is used for projecting a screen to be projected; the method comprises the following steps:
acquiring screen projection request information sent by a plurality of screen projection terminals, wherein the screen projection request information comprises screen projection pictures;
arranging a plurality of screen throwing pictures to generate a screen throwing interface;
and the screen-throwing interface is used for throwing the screen to the screen, so that the screen throwing of the screen is completed.
2. The method of claim 1, wherein the screen request information further comprises a timestamp of the screen request information sent by the screen terminal to the projector; arranging a plurality of screen throwing pictures, comprising:
arranging the screen throwing pictures according to the time stamps corresponding to the screen throwing pictures; the preset rule is to prioritize the screen projection pictures with the time stamps in front.
3. The method of claim 1, wherein the projector and the projection terminal are onboard an operating system; the screen throwing request information also comprises level information of an operating system carried by the screen throwing terminal, wherein the level information at least comprises a first level and a second level, and the first level is higher than the second level; the step of arranging the plurality of screen projection pictures to generate a screen projection interface comprises the following steps:
generating a plurality of screen throwing areas, wherein the screen throwing areas comprise a first screen throwing area and a second screen throwing area, and the area of the first screen throwing area is larger than that of the second screen throwing area;
adding a screen projection picture corresponding to the level information of the first level in the first screen projection area, and adding a screen projection picture corresponding to the level information of the second level in the second screen projection area;
and generating the screen projection interface according to the first screen projection area and the second screen projection area after the screen projection picture is added.
4. The method of claim 3, wherein the screen request information further comprises audio information of the screen; the screen projection interface is projected to the screen, the screen projection of the screen is completed, and the screen projection method comprises the following steps:
and the screen projection interface is projected to the screen, and the audio information corresponding to the level information of the first level is played, so that the screen projection of the screen is completed.
5. The method of claim 3, wherein the arranging the plurality of screen shots to generate the screen shot interface includes:
and arranging the screen projection pictures corresponding to the level information of the first level to generate a screen projection interface.
6. The method of claim 1, wherein the projection system further comprises a sub-projector and a sub-screen corresponding to the sub-projector, the projector and the sub-projector being connected by a distributed soft bus; the method further comprises the steps of:
and sending the screen projection interface to the sub projector so that the sub projector projects the screen projection interface to the sub screen to finish the screen projection of the sub screen.
7. The method of claim 6, wherein the screen request information further comprises location information of the screen terminal; the screen projection interface comprises a first screen projection interface and a second screen projection interface, wherein the first screen projection interface is used for projecting a screen to the screen, and the second screen projection interface is used for projecting a screen to the sub-screen; the step of arranging the plurality of screen projection pictures to generate a screen projection interface comprises the following steps:
acquiring position information of the sub-projector sent by the sub-projector;
acquiring position information of the projector;
calculating a first distance between the projector and the screen projection terminal according to the position information of the projector and the position information of the screen projection terminal;
calculating a second distance between the projector and the screen projection terminal according to the position information of the sub-projector and the position information of the screen projection terminal;
generating the first screen projection interface according to the screen projection picture of which the first distance is smaller than or equal to the second distance;
and generating the second screen projection interface according to the screen projection picture of which the second distance is smaller than the first distance.
8. The method of claim 1, wherein the projector stores a preset projection terminal information base; the method further comprises the steps of:
when the distance between the screen projection terminal and the screen projection terminal is detected to be smaller than a preset distance, acquiring identification information of the screen projection terminal;
and verifying the identification information based on the preset screen-throwing terminal information base, and connecting the screen-throwing terminal with the screen-throwing terminal through a distributed soft bus after the verification is passed, so that the screen of the screen-throwing picture of the screen-throwing terminal can be thrown to the screen.
9. The method of claim 1, wherein after the screen-casting of the screen-casting interface to the screen is completed, the method comprises:
acquiring clock information of the projector;
acquiring clock information of the screen-throwing terminal;
generating correction information according to the clock information of the projector and the clock information of the screen projection terminal;
and correcting the time stamp of the screen projection picture corresponding to the screen projection terminal according to the correction information.
10. The screen projection system is characterized by comprising a plurality of screen projection terminals, a projector and a screen, wherein the projector is connected with the screen projection terminals through a distributed soft bus and is used for projecting the screen to be projected;
wherein the projector further comprises a processor, a memory, and a computer program stored on the memory and executable by the processor, the memory storing a policy model, wherein the computer program when executed by the processor implements the steps of the method of projecting screens as claimed in any one of claims 1-8.
11. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, causes the processor to implement the steps of the screen projection method according to any of claims 1-8.
CN202311440960.5A 2023-10-31 2023-10-31 Screen projection method, screen projection system and storage medium Pending CN117676211A (en)

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CN202311440960.5A CN117676211A (en) 2023-10-31 2023-10-31 Screen projection method, screen projection system and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311440960.5A CN117676211A (en) 2023-10-31 2023-10-31 Screen projection method, screen projection system and storage medium

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