CN105262974A - Method for realizing wireless screen sharing of multiple users - Google Patents
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Abstract
The invention relates to a method for realizing wireless screen sharing of multiple users. The method comprises the following steps that: video connection between a host and a display screen is established; wireless connection among the host and more than one client sides is established; the host and the client sides operate a video transmission program; the host selects a corresponding display mode according to the number of the connected client sides; and the host receives screen information captured by the client sides and transfers the screen information to the display screen to display. Sharing and screen projection of user screen contents can be completed in a wireless transmission manner; a video line is unnecessary to repetitively plug; therefore, the tedious degree of the screen projection operation for a conference is simplified; screen projection displays of multiple kinds of wireless equipment terminals are compatible; by means of support of multiple kinds of platforms, contents of a mobile phone and a tablet computer also can be projected into a screen to interact; interaction of a large screen and a small screen is supported; and extra white board equipment is unnecessary.
Description
Technical field
The present invention relates to screen display technology field, multimedia conferencing room, be specifically related to a kind of method realizing many people screen wireless sharing.
Background technology
Need during multi-person conference constantly to plug video line; Video line falls short of, and some computer does not have suitable output interface; Need to throw in multiple document to be on one screen analyzed; During session discussing, need to mark, also need to use electronic whiteboard; Find correct throwing screen Macintosh, " Fn+? "
These above-mentioned problems are that we need often to run into when being rendered on screen by notebook computer in a meeting.In meeting room, these large-sized display devices of projecting apparatus, LCDs, mosaic screen are the common devices in meeting-place.In general, these display devices and computer are all wired connections, are to be connected with the USB interface of computer by VGA (DVI/DP/HDMI) video line.Carry out in process in meeting, if need the display information of throwing on screen on other computers, need first to disconnect original connection, then connect other machine interface.And although some Wireless projectors solve mobility, if when relating to the machine source switching projection, or need first original users to be exited and middle connection breaking, new user could access projecting apparatus.
By above-mentioned introduction, we can find out the limitation of current meeting jettison system in application process and shortcoming.General projection or display device inevitably need constantly to plug video line, and the process that this interruption connects again is relatively loaded down with trivial details, also causes puzzlement to user when use.Above-mentioned use scenes is mainly determined by traditional transmission of video images mode.The user computer screen content of participant can be presented on large-screen display by the current this display system transmitted by video line, but the hardware constraints of a corresponding video line of display device, makes the computer desktop content that can only show a road user on screen simultaneously.This mechanism simultaneously only having a road content display, for the application scenarios that many people attend a meeting, well cannot process the problem of many people Screen sharing.Cause the low of enterprise's meeting efficiency to a certain extent, do not meet the requirements of the times of modern society's production results iteratively faster.
Summary of the invention
For the weak point existed in the problems referred to above, the invention provides a kind of method realizing many people screen wireless sharing.
For achieving the above object, the invention provides a kind of method realizing many people screen wireless sharing, the method comprises the following steps:
Step 101: main frame and display screen are set up video and be connected;
Step 102: main frame and more than one client set up wireless connections, described main frame and described client run transmission of video program;
Step 103: main frame selects corresponding display mode according to connected number of clients;
Step 104: main frame receives the screen message that client captures, and described screen message is passed to display screen, for display.
Improve further as the present invention, build-in services Program Screen share service main frame is connected by video line with the screen display device of meeting room, connecting the power supply of service host, starting service host switch, simultaneously service routine also startup optimization.
Improve further as the present invention, PC; One or more in panel computer, mobile phone.
Improve further as the present invention, host analysis connect the number of client; Main frame transfers the display mode of respective number according to described number, and selects.
Improve further as the present invention, when the number of the client that described main frame connects is 1, display mode is single screen display; When the number of the client that described main frame connects is multiple, display mode is multihead display.
Improve further as the present invention, display mode is single screen display, after user clicks the throwing screen button on client-side program, client-side program catches the screen message of wireless terminal, and use H.264 agreement to carry out compressed encoding to picture material, coded data is flowed through 2.4G wireless network transmissions to service host by client-side program, service routine is decoded to the data flow received and is presented and plays up, the image information after having played up of decoding is sent on display device by video line by service routine, the wireless terminal desktop contents of display device display user.
Improve further as the present invention, client-side program is with the screen message of the capture wireless terminal of 30 frames/second.
Improve further as the present invention, display mode is multihead display, clicked the sequencing throwing screen button according to multiple user by serve end program, the screen content carrying out multiple user on the display device shares display, when user throws screen, computer name information in the terminal equipment that service host can show each user on the corresponding desktop picture of display large-screen, for user annotation reciprocal process, user completes screen wireless sharing, client-side program clicks labelled buttons, in the annotation tool hurdle of display, selects live width, shape, color options; User clicks the beginning labelled buttons on client-side program, will on wireless subscriber terminal desktop instant playback marked content, synchronously, client-side program screen interception and coding, carry out decoding and showing transferring data to service host.
Improve further as the present invention, client-side program carries out intercepting and encoding with the speed of 30 frames per second, the data flow transmitted with markup information passes through 2.4G wireless network transmissions to service host, after service routine is decoded to the data flow received and is presented and play up, again image and markup information are sent on display device by video line, the wireless terminal desktop contents of display device simultaneous display user and markup information.
Improve further as the present invention, screen display device can show the desktop screen content of 4 users at most simultaneously.
Beneficial effect of the present invention is: by the shared throwing screen of wireless transmission method completing user screen content, no longer need plug video line repeatedly, simplifies meeting and throws screen complex operation degree; Its maximum four user's screen contents share the mechanism of display, make displaying contents be easy to analyze contrast, improve participant's participation enthusiasm; The throwing screen display of compatible multiclass wireless device terminal shows that the support of multiclass platform makes mobile phone plane plate computer also can be on the screen interaction, without the need to considering device operating system; Carry out image real time transfer with the high frame per second system of 30 frames per second, the audio-visual broadcasting of perfect support, meets the conference key agreement that modern meeting room amusement is shared; The method provides synchronous marking Function, supports the interaction of large-size screen monitors and smaller screen, and meeting can complete mark records while sharing, and does not need extra blank equipment.
Accompanying drawing explanation
Fig. 1 is that the flow process of the method for a kind of many people of realization screen of the present invention wireless sharing is rectified figure;
The FB(flow block) of the conference applications system that Fig. 2 is the method for the wireless sharing shown in Fig. 1;
The single user Screen sharing exchange method that Fig. 3 is the method for the wireless sharing shown in Fig. 1;
Multiple users of the method that Fig. 4 is the wireless sharing shown in Fig. 1 share the display example block diagram one of throwing screen;
Multiple users of the method that Fig. 5 is the wireless sharing shown in Fig. 1 share the display example block diagram two of throwing screen;
The user annotation exchange method block diagram that Fig. 6 is the method for the wireless sharing shown in Fig. 1.
Embodiment
As shown in Figure 1, a kind of method realizing many people screen wireless sharing described in the embodiment of the present invention, the method comprises the following steps: main frame and display screen are set up video and be connected; Main frame and more than one client set up wireless connections, and described main frame and described client run transmission of video program; Main frame selects corresponding display mode according to connected number of clients; Main frame receives the screen message that client captures, and described screen message is passed to display screen, for display.
In multi-user's Screen sharing: the screen content carrying out multiple user on the display device shares display, and client-side program screen interception and coding, service routine is decoded to the data flow received and presented and plays up and be sent on display device.Make full use of existing meeting room screen display device, with the multiple users attended a meeting for core, the desktop contents of the notebook computer of each user and mobile phone, these wireless terminal devices of panel computer is wirelessly presented in large-screen display equipment, thus break away from the video cables of various interface, and the screen sharing method of multiple user is provided, makes conference screen show more content.The method of many people screen wireless sharing, towards the signal apparatus of meeting room, support the shared display of multi-user's screen, and allow each user to switch display mode flexibly according to meeting process, the content of display does eye-catching labeling operation, realizes meeting cooperation and the mutual application experience shared.Market applicability and technological adaptability target in order to achieve the above object, controls deployment architecture in conjunction with general meeting-place, provides the method that can realize many people screen wireless sharing.
The method of many people screen wireless sharing, the step that method comprises realization has: the deployment connection being first Screen sharing service host, the Screen sharing service host of build-in services program is needed to be connected by video line with the screen display device of meeting room, and connect the power supply of service host, start service host switch.Then each user carries out the download of Screen sharing client-side program, then carries out the installation of Screen sharing client-side program, finally starts client-side program, and the operation carrying out Screen sharing client uses.
In order to realize said method, the meeting room display device system related to as shown in Figure 1, in application hardware environment: include large-screen display equipment, Screen sharing service host, notebook computer and cell phone, panel computer equipment etc.
As shown in Figure 2, the application scenarios shown in embodiment one is C/S framework, and Screen sharing service host, as the hardware carrier of service end, focuses on the view data that client-side program sends, and it presented according to display mode.The wireless terminals such as remaining user's notebook computer, cell phone and panel computer all need to install corresponding Screen sharing client-side program, coordinate the process that Screen sharing service host completes instruction transmission, image grabs screen, compressed encoding and transfer of data.
In order to make the object of the invention, technical scheme and advantage clearly, below in conjunction with chart, the present embodiment is described in further detail.As described above, the present embodiment method comprises the step of four aspects: Screen sharing service host connects, Screen sharing client-side program is downloaded, Screen sharing client-side program is installed, Screen sharing client-side program runs.Introduce the concrete interaction flow of each system in different step implementation procedure below respectively.
Screen sharing service host connects:
The inventive method realizes Screen sharing service host and connects, the Screen sharing service host of build-in services program is needed to be connected by video line with the screen display device of meeting room, and connect the power supply of service host, start service host switch, simultaneously service routine also startup optimization.
Screen sharing client-side program is downloaded:
The inventive method is after completing Screen sharing service host and connecting, need to use user by the wireless terminal wireless network that (comprising notebook computer, cell phone, panel computer), Connection Service main frame sent, by browser from download client program installation kit Screen sharing service host.For the wireless terminal device of dissimilar different operating system, Screen sharing service host provides dissimilar Screen sharing client-side program installation kit.
Screen sharing client-side program is installed:
The inventive method, after completing Screen sharing client-side program and downloading, needs to be installed to by client-side program in the wireless terminal device of use user, could normally use.The installation process of client-side program has corresponding prompting interface and guides user to complete installation.
Screen sharing client-side program runs
The inventive method realizes the running of Screen sharing client-side program, and the interaction flow related to is divided into several scene: single user Screen sharing, multi-user's Screen sharing, user annotation are mutual.Interactive relation corresponding to different scenes will be introduced respectively below.
Be illustrated in figure 3 single user Screen sharing exchange method, present unique user and use client-side program, realized the process of unique user Screen sharing by wireless network.
User clicks the throwing screen button on client-side program.
Client-side program is with the screen message of the capture wireless terminal of 30 frames/second.
Client-side program uses H.264 agreement to carry out compressed encoding to picture material.
Coded data is flowed through 2.4G wireless network transmissions to service host by client-side program.
Service routine is decoded to the data flow received and is presented and plays up.
The image information after having played up of decoding is sent on display device by video line by service routine.
The wireless terminal desktop contents of display device display user.
Multi-user's Screen sharing that the inventive method provides, be click by serve end program the sequencing throwing screen button according to multiple user, the screen content carrying out multiple user on the display device shares display.
Be illustrated in figure 4 multiple user and share the display example of throwing screen.
User 1 presses the button, the desktop of screen display user 1;
User 2 presses the button, and screen shows the desktop of user 1 and user 2 side by side;
User 3 presses the button, the DESKTOP INFORMATION of screen display 3 users;
User 4 presses the button, and screen shows the DESKTOP INFORMATION of 4 users according to 4 split screen forms;
Arbitrary user clicks to cancel and throws screen, and screen is according to the DESKTOP INFORMATION of upper pattern display remaining users.As: the situation being in (4) in upper figure, user 3 clicks to cancel and throws screen, and screens switch is the pattern of (3), and the desktop of user 4 is presented at the position of user 3 in (3).
As shown in Figure 5, if existing 4 users throw screen simultaneously, after the 5th user presses control button, the desktop picture of user 5 will only be shown.
In addition, after client-side program normally starts, when unique user throws screen, or when multiple user throws screen simultaneously, computer name information in the terminal equipment that service host can show each user on the corresponding desktop picture of display large-screen.
The user annotation reciprocal process that the inventive method provides, being for using client-side program, being completed the scene of Screen sharing by the mode of wireless transmission.
Be illustrated in figure 6 user annotation exchange method.After user throws screen, select annotation tool on the wireless terminal desktop of oneself, carry out the labeling operation of point, line, frame, these marked content also can synchronously be presented on screen display device.
Relate to concrete process as follows:
User completes screen wireless sharing, and client-side program clicks labelled buttons.Client-side program display annotation tool hurdle.
User selects live width, shape, color options in annotation tool hurdle.User clicks the beginning labelled buttons on client-side program.
Wireless subscriber terminal desktop shows marked content.
Client-side program carries out screen interception and coding with the speed of 30 frames per second, and transmission passes through 2.4G wireless network transmissions to service host with the data flow of markup information.
Service routine is decoded to the data flow received and is presented and plays up.
Service routine by decoding played up after image and markup information be sent on display device by video line.
The wireless terminal desktop contents of display device simultaneous display user and markup information.
Make full use of existing meeting room screen display device, with the multiple users attended a meeting for core, the desktop contents of the notebook computer of each user and mobile phone, these wireless terminal devices of panel computer is wirelessly presented in large-screen display equipment, thus break away from the video cables of various interface, and the screen sharing method of multiple user is provided, makes conference screen show more content.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. realize a method for many people screen wireless sharing, it is characterized in that, the method comprises the following steps:
Step 101: main frame and display screen are set up video and be connected;
Step 102: main frame and more than one client set up wireless connections, described main frame and described client run transmission of video program;
Step 103: main frame selects corresponding display mode according to connected number of clients;
Step 104: main frame receives the screen message that client captures, and described screen message is passed to display screen, for display.
2. the method realizing many people screen wireless sharing according to claim 1, it is characterized in that: in a step 101: build-in services Program Screen share service main frame is connected by video line with the screen display device of meeting room, connecting the power supply of service host, start service host switch, simultaneously service routine also startup optimization.
3. the method realizing many people screen wireless sharing according to claim 1, is characterized in that: in a step 102: PC; One or more in panel computer, mobile phone.
4. the method realizing many people screen wireless sharing according to claim 1, is characterized in that: in step 103: host analysis connect the number of client; Main frame transfers the display mode of respective number according to described number, and selects.
5. the method realizing many people screen wireless sharing according to claim 3 or 4, is characterized in that: at step 104: when the number of the client that described main frame connects is 1, and display mode is single screen display; When the number of the client that described main frame connects is multiple, display mode is multihead display.
6. the method realizing many people screen wireless sharing according to claim 5, it is characterized in that: display mode is single screen display, after user clicks the throwing screen button on client-side program, client-side program catches the screen message of wireless terminal, and use H.264 agreement to carry out compressed encoding to picture material, coded data is flowed through 2.4G wireless network transmissions to service host by client-side program, service routine is decoded to the data flow received and is presented and plays up, the image information after having played up of decoding is sent on display device by video line by service routine, the wireless terminal desktop contents of display device display user.
7. the method realizing many people screen wireless sharing according to claim 6, is characterized in that: client-side program is with the screen message of the capture wireless terminal of 30 frames/second.
8. the method realizing many people screen wireless sharing according to claim 5, it is characterized in that: display mode is multihead display, clicked the sequencing throwing screen button according to multiple user by serve end program, the screen content carrying out multiple user on the display device shares display, when user throws screen, computer name information in the terminal equipment that service host can show each user on the corresponding desktop picture of display large-screen, for user annotation reciprocal process, user completes screen wireless sharing, client-side program clicks labelled buttons, live width is selected in the annotation tool hurdle of display, shape, color options, user clicks the beginning labelled buttons on client-side program, will on wireless subscriber terminal desktop instant playback marked content, synchronously, client-side program screen interception and coding, carry out decoding and showing transferring data to service host.
9. the method realizing many people screen wireless sharing according to claim 8, it is characterized in that: client-side program carries out intercepting and encoding with the speed of 30 frames per second, the data flow transmitted with markup information passes through 2.4G wireless network transmissions to service host, after service routine is decoded to the data flow received and is presented and play up, again image and markup information are sent on display device by video line, the wireless terminal desktop contents of display device simultaneous display user and markup information.
10. the method realizing many people screen wireless sharing according to claim 8, is characterized in that: the desktop screen content that at most simultaneously can show 4 users on screen display device.
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