CN108063820B - Screen projection synchronization method for cloud conference - Google Patents
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- CN108063820B CN108063820B CN201711374049.3A CN201711374049A CN108063820B CN 108063820 B CN108063820 B CN 108063820B CN 201711374049 A CN201711374049 A CN 201711374049A CN 108063820 B CN108063820 B CN 108063820B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/08—Protocols specially adapted for terminal emulation, e.g. Telnet
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3147—Multi-projection systems
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Abstract
The invention provides a screen-casting synchronization method for a cloud conference, which uploads a PPT file to a server and converts the PPT file into a preparation file; the first client, the second client and the browser respectively establish communication channels with the server to realize synchronization of the first client, the second client and the browser; the first client is a mobile terminal and acquires a prepared file and opens the prepared file for display and page switching; and when the first client side is switched to any other pages of the preparation file, simultaneously sending a synchronization instruction to the second client side so as to realize real-time synchronous screen projection of the PPT file projection to the second client side. The screen-casting synchronization method of the cloud conference can enable a speaker to use the mobile terminal to replace traditional hardware equipment to realize switching of conference screens, so that screen-casting operation is simplified, and the effect of real-time screen-casting display is achieved; meanwhile, the method can realize the synchronous screen projection of the conference projection in a long distance and a large range.
Description
Technical Field
The invention relates to the technical field of cloud conferences, in particular to a screen projection synchronization method of a cloud conference.
Background
The cloud conference is an efficient, convenient and low-cost conference form based on a cloud computing technology. In the conference lecture process, a speaker often needs to develop lecture slide contents in a sliding PPT projection mode, and in order to better interact with a live audience, the speaker usually needs to additionally purchase a wireless control device to operate the slide, so that the cost is additionally increased, and the speaker is easy to forget to carry.
In addition, in the prior art, a conference can be often developed by using a screen projection technology, the screen projection technology refers to that a screen of one terminal is mirrored onto another terminal, and most of the existing screen projection technology is realized by adopting a bluetooth mode, an infrared mode or a local area network mode. However, the prior art can only realize the synchronous screen projection effect in a small range, and cannot realize the synchronous screen projection in a long distance or a large range.
Therefore, it is needed to provide a screen-projecting synchronization method for a cloud conference to implement remote and large-scale synchronous screen projection of conference projection and a function of switching the conference projection screen to perform real-time screen projection display.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a screen-projecting synchronization method for a cloud conference, which can enable a speaker to use a mobile terminal to replace the traditional hardware equipment to realize the switching of conference screens so as to simplify screen-projecting operation and achieve the effect of real-time screen-projecting display; meanwhile, the method can realize the synchronous screen projection of the conference projection in a long distance and a large range.
In order to achieve the purpose, the invention is realized by the following technical scheme: a screen projection synchronization method for a cloud conference is characterized by comprising the following steps: uploading a PPT file to a server and converting the PPT file into a preparation file; the first client, the second client and the browser respectively establish communication channels with the server to realize synchronization of the first client, the second client and the browser; the first client is a mobile terminal and acquires a prepared file and opens the prepared file for display and page switching; and when the first client side is switched to any other pages of the preparation file, simultaneously sending a synchronization instruction to the second client side so as to realize real-time synchronous screen projection of the PPT file projection to the second client side.
In the scheme, the speaker uses the mobile terminal to be in butt joint with the computer, and synchronous screen projection and operation of the PPT file on the second client side are achieved through a wireless network cloud synchronization mode. The method can enable the speaker to use the mobile terminal to replace the traditional hardware equipment to realize the switching of the conference screen, so as to simplify the screen-casting operation and achieve the effect of real-time screen-casting display; meanwhile, the method can realize the synchronous screen projection of the conference projection in a long distance and a large range. The method realizes communication butt joint by using a network communication technology, is compatible with the IOS and android system of the mobile terminal, does not need butt joint of Bluetooth and infrared functions and a local area network, and can realize synchronous screen projection control in a long distance and a large range.
Specifically, uploading a PPT file to a server and converting the PPT file into a preparation file; the first client, the second client and the browser respectively establish communication channels with the server to realize synchronization of the first client, the second client and the browser; the first client is a mobile terminal and acquires a prepared file and opens the prepared file for display and page switching; when the first client side is switched to any other pages of the preparation file, a synchronization instruction is sent to the second client side at the same time, so that the PPT file projection is synchronously projected to the second client side in real time, the method comprises the following steps:
firstly, uploading a PPT file to a server through a browser; the server performs format conversion on the PPT file to generate a preparation file with a two-dimensional code, and stores the preparation file;
step two, opening a prepared file on a server through a browser, wherein a first client is a mobile terminal and scans a two-dimensional code of the prepared file on the browser so that the first client logs in to obtain the prepared file and sends a prepared file link; the second client side obtains the prepared file through the link of the prepared file, so that communication channels are respectively established between the first client side, the second client side and the browser and the server through a socket mechanism, and synchronization between the first client side and the second client side is realized;
thirdly, acquiring the prepared file by adopting a first client of the mobile terminal, opening the prepared file for display, and switching the page to any other pages of the prepared file;
and fourthly, when the first client side of the mobile terminal is switched to any other pages of the prepared file, simultaneously sending a synchronization instruction to the second client side through the server so as to realize real-time synchronous screen projection of the PPT file projection to the second client side.
The method comprises the steps that a speaker uploads a PPT file to a cloud server in advance before a lecture, the APP of a mobile terminal is opened, all PPT file contents are presented, and PPT slide contents can be opened in a code scanning and screen projection mode; and the second client remotely opens the PPT file through the link so as to realize the synchronization of the main speaker and the second client. At this time, if the up-down page sliding switching operation is performed on the mobile terminal, the second client side can synchronously switch according to the operation sequence of the main speaker, and the effect of synchronously showing the mobile terminal and the second client side is achieved.
In the second step, the first client is a mobile terminal, and the scanning of the two-dimensional code of the prepared file on the browser by the first client to log in the prepared file means that: the first client is a mobile terminal, the two-dimensional code of the preparation file is scanned on a browser, the mobile terminal generates a request signal according to the two-dimensional code information and sends the request signal to the server, and the server sends the preparation file to the first client.
The third step, acquiring the prepared file and opening the prepared file for display by adopting the first client of the mobile terminal, and switching the page to any other pages of the prepared file means that: the method comprises the steps of acquiring a preparation file by a first client of the mobile terminal, opening the preparation file in a tiled mode to display the content of each page of the preparation file, and switching the page to any other page of the preparation file in a left-right sliding gesture or button clicking mode.
In the third step and the fourth step, the method further comprises the step of recording the audio when the first client displays the prepared file.
The step of recording the audio when the first client displays the prepared file comprises the following steps: the first client is provided with an audio recording module, and the audio recording module extracts the content of the current page number to generate identification information; the speaker uses the first client self-contained voice input port to record audio frequency to the current page number content through the audio frequency recording module.
The method also comprises the following steps of judging whether the audio recording is finished:
judging whether the first client side switches the page to any other pages of the preparation file:
if not, judging that the audio recording of the content of the current page number of the preparation file is not finished, and continuously recording the audio;
if yes, judging that the audio recording of the current page content of the preparation file is finished, and compressing and converting the recorded audio by the audio recording module at a set code rate to generate a compressed audio and storing the compressed audio; the audio recording module sends the compressed audio and the identification information to a server; the server calls out the page content corresponding to the preparation file through the identification information, so that the received compressed audio is matched and associated with the page content corresponding to the preparation file; generating single-page data together by the received compressed audio and the page number content corresponding to the preparation file and storing the single-page data; and the server packages the single-page data in a json format to generate a single-page data package, and then directly sends the single-page data package to the second client so as to realize real-time synchronization of the PPT file projection and the audio to the second client.
The method also comprises the step that the second client analyzes the single-page data package body for the user to watch.
The step of the second client analyzing the single-page data package for the user to watch includes: the second client is provided with a playing module, the playing module analyzes the single-page data packaging body to generate a playing unit, the playing unit comprises audio content and page number content corresponding to the preparation file, and the newly generated playing unit is displayed on a display interface of the second client to be played.
The first client is a mobile phone or a tablet computer; the second client is a mobile phone, a tablet computer or a computer.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the screen-casting synchronization method of the cloud conference can enable a speaker to use the mobile terminal to replace traditional hardware equipment to realize the switching of conference screens, so that screen-casting operation is simplified and the effect of real-time screen-casting display is achieved; meanwhile, the method can realize the synchronous screen projection of the conference projection in a long distance and a large range.
2. The screen projection synchronization method for the cloud conference can be applied to lecture scenes with requirements of PPT projection such as curtain projection, television projection, computer display projection and the like, and can be applied to multi-scene conferences such as school classrooms, product release meetings, company discussion meetings, project summary meetings and the like. The method can meet the functional requirement that a conference speaker controls the projection of a desktop computer screen in a wireless transmission mode, help the speaker and audiences to have more field interaction, and does not need to receive the trouble of equipment transmission distance, and wireless cloud synchronous screen projection operates PPT slides.
Drawings
FIG. 1 is a relationship diagram of a screen-casting synchronization method for a cloud conference according to the present invention;
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Examples
As shown in fig. 1, the screen-casting synchronization method for a cloud conference of the present invention is as follows: uploading a PPT file to a server and converting the PPT file into a preparation file; the first client, the second client and the browser respectively establish communication channels with the server to realize synchronization of the first client, the second client and the browser; the first client is a mobile terminal and acquires a prepared file and opens the prepared file for display and page switching; and when the first client side is switched to any other pages of the preparation file, simultaneously sending a synchronization instruction to the second client side so as to realize real-time synchronous screen projection of the PPT file projection to the second client side. The first client is a mobile terminal such as a mobile phone with an IOS/Android system and a tablet computer; the second client is a mobile terminal or a computer such as a mobile phone with an IOS/Android system, a tablet personal computer and the like.
Specifically, the method comprises the following steps:
firstly, uploading a PPT file to a server through a browser; the server performs format conversion on the PPT file to generate a preparation file with a two-dimensional code, and stores the preparation file;
step two, opening a prepared file on a server through a browser, wherein a first client is a mobile terminal and scans a two-dimensional code of the prepared file on the browser so that the first client logs in to obtain the prepared file and sends a prepared file link; the second client side obtains the prepared file through the link of the prepared file, so that communication channels are respectively established between the first client side, the second client side and the browser and the server through a socket mechanism, and synchronization between the first client side and the second client side is realized;
thirdly, acquiring the prepared file by adopting a first client of the mobile terminal, opening the prepared file for display, and switching the page to any other pages of the prepared file;
and fourthly, when the first client side of the mobile terminal is switched to any other pages of the prepared file, simultaneously sending a synchronization instruction to the second client side through the server so as to realize real-time synchronous screen projection of the PPT file projection to the second client side.
The method comprises the steps that a speaker uploads a PPT file to a cloud server in advance before a lecture, the APP of a mobile terminal is opened, all PPT file contents are presented, and PPT slide contents can be opened in a code scanning and screen projection mode; and the second client remotely opens the PPT file through the link so as to realize the synchronization of the main speaker and the second client. At this time, if the up-down page sliding switching operation is performed on the mobile terminal, the second client side can synchronously switch according to the operation sequence of the main speaker, and the effect of synchronously showing the mobile terminal and the second client side is achieved.
Preferably, the first client is a mobile terminal, and scanning a two-dimensional code of the prepared file on a browser so that the first client logs in to obtain the prepared file refers to: the first client is a mobile terminal, the two-dimensional code of the preparation file is scanned on a browser, the mobile terminal generates a request signal according to the two-dimensional code information and sends the request signal to the server, and the server sends the preparation file to the first client.
Thirdly, acquiring the prepared file by adopting the first client of the mobile terminal, opening the prepared file for display, and switching the page to any other pages of the prepared file means that: the method comprises the steps of acquiring a preparation file by a first client of the mobile terminal, opening the preparation file in a tiled mode to display the content of each page of the preparation file, and switching the page to any other page of the preparation file in a left-right sliding gesture or button clicking mode.
In the third step and the fourth step, the method further comprises the step of recording the audio when the first client displays the prepared file, and the method specifically comprises the following steps: the first client is provided with an audio recording module, and the audio recording module extracts the content of the current page number to generate identification information; the speaker uses the first client self-contained voice input port to record audio frequency to the current page number content through the audio frequency recording module.
The invention also comprises a step of judging whether the audio recording is finished, which specifically comprises the following steps:
judging whether the first client side switches the page to any other pages of the preparation file:
if not, judging that the audio recording of the content of the current page number of the preparation file is not finished, and continuously recording the audio;
if yes, judging that the audio recording of the current page content of the preparation file is finished, and compressing and converting the recorded audio by the audio recording module at a set code rate to generate a compressed audio and storing the compressed audio; the audio recording module sends the compressed audio and the identification information to a server; the server calls out the page content corresponding to the preparation file through the identification information, so that the received compressed audio is matched and associated with the page content corresponding to the preparation file; generating single-page data together by the received compressed audio and the page number content corresponding to the preparation file and storing the single-page data; and the server packages the single-page data in a json format to generate a single-page data package, and then directly sends the single-page data package to the second client so as to realize real-time synchronization of the PPT file projection and the audio to the second client.
The invention also comprises a step that the second client analyzes the single-page data packaging body for being watched by a user, which specifically comprises the following steps: the second client is provided with a playing module, the playing module analyzes the single-page data packaging body to generate a playing unit, the playing unit comprises audio content and page number content corresponding to the preparation file, and the newly generated playing unit is displayed on a display interface of the second client to be played.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (4)
1. A screen projection synchronization method for a cloud conference is characterized by comprising the following steps: uploading a PPT file to a server and converting the PPT file into a preparation file; the first client, the second client and the browser respectively establish communication channels with the server to realize synchronization of the first client, the second client and the browser; the first client is a mobile terminal and acquires a prepared file and opens the prepared file for display and page switching; when the first client side is switched to any other pages of the prepared file, a synchronization instruction is sent to the second client side at the same time, so that the PPT file projection is synchronously projected to the second client side in real time;
the method comprises the following steps:
firstly, uploading a PPT file to a server through a browser; the server performs format conversion on the PPT file to generate a preparation file with a two-dimensional code, and stores the preparation file;
step two, opening a prepared file on a server through a browser, wherein a first client is a mobile terminal and scans a two-dimensional code of the prepared file on the browser so that the first client logs in to obtain the prepared file and sends a prepared file link; the second client side obtains the prepared file through the link of the prepared file, so that communication channels are respectively established between the first client side, the second client side and the browser and the server through a socket mechanism, and synchronization between the first client side and the second client side is realized;
thirdly, acquiring the prepared file by adopting a first client of the mobile terminal, opening the prepared file for display, and switching the page to any other pages of the prepared file;
fourthly, when the first client side of the mobile terminal is switched to any other pages of the prepared file, a synchronization instruction is sent to the second client side through the server at the same time, so that the PPT file projection is synchronously projected to the second client side in real time;
in the second step, the first client is a mobile terminal, and the scanning of the two-dimensional code of the prepared file on the browser by the first client to log in the prepared file means that: the first client is a mobile terminal which scans the two-dimensional code of the prepared file on a browser, the mobile terminal generates a request signal according to the two-dimensional code information and sends the request signal to the server, and the server sends the prepared file to the first client;
in the third step and the fourth step, the method also comprises the step of recording the audio when the first client displays the prepared file; the step of recording the audio when the first client displays the prepared file comprises the following steps: the first client is provided with an audio recording module, and the audio recording module extracts the content of the current page number to generate identification information; the speaker uses the voice input port of the first client to record the audio frequency of the current page content through the audio recording module;
the method also comprises the following steps of judging whether the audio recording is finished:
judging whether the first client side switches the page to any other pages of the preparation file:
if not, judging that the audio recording of the content of the current page number of the preparation file is not finished, and continuously recording the audio; if yes, judging that the audio recording of the current page content of the preparation file is finished, and compressing and converting the recorded audio by the audio recording module at a set code rate to generate a compressed audio and storing the compressed audio; the audio recording module sends the compressed audio and the identification information to a server; the server calls out the page content corresponding to the preparation file through the identification information, so that the received compressed audio is matched and associated with the page content corresponding to the preparation file; generating single-page data together by the received compressed audio and the page number content corresponding to the preparation file and storing the single-page data; the server packages the single-page data in a json format to generate a single-page data package, and then directly sends the single-page data package to the second client, so that the PPT file projection and the audio are synchronized to the second client in real time;
the third step, acquiring the prepared file and opening the prepared file for display by adopting the first client of the mobile terminal, and switching the page to any other pages of the prepared file means that: the method comprises the steps of acquiring a preparation file by a first client of the mobile terminal, opening the preparation file in a tiled mode to display the content of each page of the preparation file, and switching the page to any other page of the preparation file in a left-right sliding gesture or button clicking mode.
2. The screen-projection synchronization method for the cloud conference as claimed in claim 1, wherein: the method also comprises the step that the second client analyzes the single-page data package body for the user to watch.
3. The screen-projection synchronization method for the cloud conference as claimed in claim 2, wherein: the step of the second client analyzing the single-page data package for the user to watch includes: the second client is provided with a playing module, the playing module analyzes the single-page data packaging body to generate a playing unit, the playing unit comprises audio content and page number content corresponding to the preparation file, and the newly generated playing unit is displayed on a display interface of the second client to be played.
4. The screen-projection synchronization method for the cloud conference as claimed in claim 1, wherein: the first client is a mobile phone or a tablet computer; the second client is a mobile phone, a tablet computer or a computer.
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| CN109379332A (en) * | 2018-09-08 | 2019-02-22 | 北京爱视界科技有限公司 | Multi-screen interactive display methods |
| CN111240614B (en) * | 2018-11-28 | 2023-06-20 | 阿里巴巴集团控股有限公司 | Screen projection processing method, device and equipment |
| CN111726660A (en) * | 2019-03-19 | 2020-09-29 | 北京金山办公软件股份有限公司 | Method, system, terminal and storage medium for projecting document to television |
| CN110457496A (en) * | 2019-06-18 | 2019-11-15 | 北京世纪超星信息技术发展有限责任公司 | A method of passing through cloud server sharing media content |
| CN110430228A (en) * | 2019-06-18 | 2019-11-08 | 北京世纪超星信息技术发展有限责任公司 | A method of it is operated by mobile terminal to equipment is calculated |
| CN110297917B (en) * | 2019-06-28 | 2023-05-23 | 腾讯科技（深圳）有限公司 | Live broadcast method and device, electronic equipment and storage medium |
| CN111723558A (en) * | 2020-07-17 | 2020-09-29 | 腾讯科技（深圳）有限公司 | Document display method and device, electronic equipment and storage medium |
| CN114915834A (en) * | 2021-02-08 | 2022-08-16 | 华为技术有限公司 | Screen projection method and electronic equipment |
| CN113206970A (en) * | 2021-04-16 | 2021-08-03 | 广州朗国电子科技有限公司 | Wireless screen projection method and device for video communication and storage medium |
| CN113792229A (en) * | 2021-08-19 | 2021-12-14 | 江苏欧帝电子科技有限公司 | Intelligent blackboard sidebar file uploading method, device and system |
| CN113938704B (en) * | 2021-10-15 | 2023-03-21 | 北京小度互娱科技有限公司 | Screen projection method, screen projection end, screen projected end, cloud server and screen projection system |
| CN114143596B (en) * | 2021-11-29 | 2024-03-19 | 惠州Tcl移动通信有限公司 | Screen projection control method and device, terminal equipment and storage medium |
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