CN100414877C - System and method for implementing webcast slide presentation files - Google Patents

Abstract

The invention relates to a system and method for realizing webcast slide presentation files. The core of the present invention is to connect all members to the network server, and set a slide presentation file conversion function on the network server, so that the corresponding slide files can be converted into files that can be flexibly recognized by the client and sent to the client. Therefore, the present invention solves the problem of using a slide presentation as an expression medium, even if each member is not in the same physical location, the content information of the slide presentation file of other members can also be obtained in real time. Moreover, in the present invention, a webcasting method is adopted to transmit slideshow files between the network server and the client, which reduces the burden on the network. At the same time, the realization of the present invention makes it unnecessary for the client of the webcast slideshow file to install corresponding slideshow software, which simplifies the realization process of the webcast slideshow file.

Description

System and method for implementing webcast slide presentation files

technical field

The invention relates to the technical field of network communication, in particular to a system and method for realizing webcast slide presentation files.

Background technique

The basic purpose of the slide presentation file is to provide a platform for all members to express their opinions or post comments. The slide presentation file can be used as a variety of expression media, and can collect discussions, training information, etc. of multiple parties.

When the members of all parties are in the same physical location, each member can conveniently obtain the corresponding slide presentation file, and can publish opinions and add comments, so that the above functions of the slide presentation file will be well reflected .

However, in a practical application process, there may be such a situation: all members cannot give speeches at the same physical location, but each member still hopes to share the opinions and comments made by all members in real time. In this case, it is almost impossible to use the slideshow as a presentation tool. However, the current application requirements hope that there can be an implementation mechanism that enables everyone to comment on the corresponding slide presentation file in real time and share the corresponding slide presentation file with other members.

At present, in order to meet the above requirements, the slide presentation file can be sent to each network meeting member manually. For each member, as long as the corresponding slide application software is installed on his terminal device, he can open the received slide presentation, so that he can see the opinions or comment information sent by other members through the slide file.

It is not difficult to see that the above solution has the following disadvantages:

(1) Because when sending information to other web conference members, the commenter (that is, a certain member) who needs to send an updated slide presentation file will be completely cut off from other members. Until the reviewer completes the process of commenting on and expressing the slide presentation according to his own wishes, the contact with other members cannot be resumed. Therefore, the above solution cannot send the reviewer's comment information to other members in real time, so that the opinions or comments expressed by the reviewer cannot have an impact in real time.

(2) In the above solution, the slideshow file needs to be transmitted to each member independently, so multiple independent slideshow files need to be generated for transmission. For example, if there are N members, N independent slideshow files will be generated respectively Files are transferred across the network, which will increase the burden on the network.

(3) In the above solution, all members need to install the application software of the slideshow file on their terminal devices to open the slideshow file, thus increasing the complexity of implementation.

At present, another solution is provided, which is to allow the members of the network meeting to watch the slide presentation through the video conference, so that each member of the network meeting can obtain the opinions expressed by other members in real time.

However, the video conferencing solution needs more hardware support, so the implementation cost is very high; moreover, the video conferencing solution also needs high bandwidth to ensure that the video stream is transmitted across different networks. It will inevitably occupy a large amount of network resources, thereby increasing the burden on the network and further increasing the corresponding operating costs.

Contents of the invention

In view of the above-mentioned problems in the prior art, the object of the present invention is to provide a system and method for implementing webcast slide presentation files, so that the client can conveniently watch slide presentation files without installing application software.

The purpose of the present invention is achieved through the following technical solutions:

The invention provides a system for webcasting slide presentation files, comprising:

Client: respectively connected to the web server, used to obtain the slide presentation file in the corresponding format from the web server;

Network server: used to obtain the slide presentation file, and send the slide presentation file to the slide presentation file converter, also receive the converted slide presentation file from the slide presentation converter, and send the converted slide presentation file Files are sent to each client in real time;

Slideshow file converter: used to convert the slideshow file sent by the web server into a slideshow file in a predetermined format, and return it to the web server.

The client is also connected to the network server through the firewall.

The present invention also provides a method for webcasting slide presentation files, including:

A. Each client establishes a connection with the network server;

B. The web server converts the slide presentation file to be sent to the client into a slide presentation file in a predetermined format through the slide file converter;

C. The network server sends the converted slide presentation file to the client in real time through the connection with the client.

Described step B comprises:

The slideshow file converter converts the slideshow file into a slideshow file in a predetermined format and encapsulates it into an HTML page.

One slide of the slide presentation file corresponds to one HTML page.

Described step B comprises:

B1. The client uploads the edited slide presentation file to the network server;

B2. The web server converts the received slide presentation file into a slide presentation file in a predetermined format through a slide file converter.

Described step B1 comprises:

When scheduling a web conference or during the web conference, the client as the chairperson of the conference needs to upload the corresponding slide presentation file.

Described step B comprises:

When the web server receives the command to obtain the corresponding slide from the client, it encapsulates the corresponding slide in an HTML page and sends it to the client.

Described step B comprises:

On the client operation page, the playback of each slide is guided by any slide.

Described step B specifically comprises:

During the online conference, as the client of the conference chairman, perform the slide presentation operation;

The network server converts the corresponding slides and sends them to each client according to the presentation operation of the conference chairman.

It can be seen from the above-mentioned technical solution provided by the present invention that the present invention can realize that whenever a slide presentation will be shared by a group of members in different locations, the opinions put forward by any client through the slide file can be effectively adopted in real time.

And, in the present invention, adopt the mode of webcasting to carry out the transmission of the slide file of predetermined format between network server and client, because network server only sends the page that the chairman of the meeting demonstrates to client; And, after the page is updated, only send In the updated page, the entire file is no longer sent as in the implementation solution provided by the prior art, so the load on the network can be effectively reduced.

At the same time, the realization of the present invention makes it unnecessary for the client of the webcast slideshow file to install corresponding slideshow software, which simplifies the realization process of the webcast slideshow file.

Description of drawings

Fig. 1 is the structural representation of the system of the present invention;

Fig. 2 is the flowchart of the method of the present invention;

Fig. 3 is a schematic diagram of a graphical user interface in the present invention.

Detailed ways

The core of the present invention is to connect all members to the network server, and set the slide presentation file conversion function on the network server side, so that the corresponding slide presentation files can be converted into files that can be flexibly recognized by the user terminal (i.e., the client), and sent to the client. Therefore, the present invention solves the problem of using a slide presentation as an expression medium, even if each member is not in the same physical location, the content information of other members' slide presentation files can also be obtained in real time.

The system of the present invention is as shown in Figure 1, specifically includes:

Client: usually includes multiple member clients, which are respectively connected to the web server, can upload slide presentation files (referred to as slide presentation files) to the web server, and can receive slide presentation files from other users from the web server;

Slideshow file converter: used to convert the slideshow file uploaded by the client into a file of a predetermined format, and encapsulate the converted file in an HTML (Hypertext Link Markup Language) page and send it to the corresponding client through the web server ;

Web server: used to obtain and save the HTTP-encapsulated slide presentation file uploaded by the client, and decode it to obtain the corresponding slide presentation file. Afterwards, the file is sent to the slide presentation file converter. The slideshow file converted and processed by the slideshow file converter is sent to the corresponding client in the form of broadcast (i.e. webcast);

The above-mentioned webcasting (Webcasting) is an emerging service that uses the Internet to deliver content to users, and its delivery method is sometimes very similar to traditional communication services such as broadcasting.

In the specific application process of the system of the present invention, in order to ensure the security of the system, each client needs to be connected to the network server through a firewall, so as to filter illegally accessed clients.

The concrete implementation of the method of the present invention is as shown in Figure 2, specifically includes:

Step 21: Establish connections with the web server on all member clients;

Through the established connection, the client can upload information to the web server, and can receive the information sent by it from the web server;

As a client, you can upload the slide presentation files with comments or comments.

Step 22: After the client edits the corresponding slideshow file, the file can be uploaded to the network server device, so that the network server can send it to other clients;

In the present invention, the client is allowed to upload the slideshow file that has been edited and processed. After the client determines to upload the corresponding slideshow file, the slideshow file is uploaded to the device of the network server. The slideshow file is based on HTTP encapsulation and transmission to the web server;

Usually, the slide presentation file is uploaded to the web server when the meeting is scheduled, and the slide presentation file can also be uploaded during the meeting; no matter what time, as long as the slide presentation file is uploaded to the web server, the web server will perform subsequent steps corresponding conversion processing.

Step 23: After the web server receives the encapsulated file uploaded by the client, it performs corresponding decoding processing on the web server side to obtain the slideshow file uploaded by the client;

Step 24: The network server converts the slideshow file uploaded by the client through a slideshow file converter to convert it into a file in a predetermined format, and the file in the predetermined format needs to be a file that the client can usually recognize;

That is to say, on the web server, the slideshow file uploaded by the client will be converted into an appropriate format, such as GIF or JPEG format, and encapsulated in an HTML page, and each slideshow corresponds to an HTML page.

Step 25: After the slideshow file is converted into a file of a predetermined format and encapsulated in an HTML page, the web server can send the HTML page to each member (ie client), so that each client can real-time Know the updated slideshow file, so that the slideshow file edited by any client can be shared by all clients;

As can be seen, in the present invention, when the slide show on the network server starts, all members will obtain the corresponding slide show shown, so that each client can obtain the slide show played (webcast) by the network server in real time document;

Simultaneously, in the present invention, the client that does not install slideshow software on the terminal device can watch the slideshow sent (that is to play) by the network server equally, promptly the present invention does not require each client that shares slideshow file to install slideshow software, so that the realization of the webcast slide file is simpler and more convenient; certainly, in the present invention, for the client who wishes to edit the slide file, it is necessary to install the corresponding slide show software, so that the corresponding slide file can be edited and processed , and upload said file.

In the present invention, on the client side, corresponding control can be performed on the slide show: when the client sends out an order for the next or previous slide show, the web server will choose to jump to the corresponding slide show, and the corresponding slide show can be Use Microsoft's slideshow software to play. That is to say, as shown in FIG. 3 , a slide show can be guided by any slide, and by playing the corresponding HTML page containing the slide, the slide show processing of all members can be updated in real time. Moreover, the implementation of the present invention does not require all clients to be in the same physical location.

That is to say, after the network conference starts, when the client as the conference chairperson performs a slide presentation operation, the web server will convert the slideshow of the corresponding content of the presentation according to the conference chairperson's presentation operation and send it to each client. The demonstration operation may include: a page-back operation, a page-forward operation, a jump to a certain page operation, and so on.

In summary, in the present invention, the client can upload the edited slide file to the web server, and the web server side converts the slide file into an appropriate format, and generates a corresponding HTML page, and then displays it to the web server. All clients connected to the network server; therefore, in the present invention, each member client can also watch slide shows without installing application software on the terminal equipment.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (10)

1. A system for webcast slide presentation files, characterized in that it comprises: Client: respectively connected to the web server, used to obtain the slide presentation file in the corresponding format from the web server; Network server: used to obtain the slide presentation file, and send the slide presentation file to the slide presentation file converter, also receive the converted slide presentation file from the slide presentation converter, and send the converted slide presentation file Files are sent to each client in real time; Slideshow file converter: used to convert the slideshow file sent by the web server into a slideshow file in a predetermined format, and return it to the web server. 2. the system of webcast slide presentation file according to claim 1, is characterized in that, described client is also connected with network server by firewall. 3. A method for webcast slide presentation files, characterized in that, comprising: A. Each client establishes a connection with the network server; B. The web server converts the slide presentation file to be sent to the client into a slide presentation file in a predetermined format through the slide file converter; C. The network server sends the converted slide presentation file to the client in real time through the connection with the client. 4. the method for webcast slide presentation file according to claim 3, is characterized in that, described step B comprises: The slideshow file converter converts the slideshow file into a slideshow file in a predetermined format and encapsulates it into an HTML page. 5. the method for webcast slideshow file according to claim 4, is characterized in that, a slide of described slideshow file corresponds to an HTML page. 6. according to the method for webcasting slide presentation file described in claim 3,4 or 5, it is characterized in that, described step B comprises: B1. The client uploads the edited slide presentation file to the network server; B2. The web server converts the received slide presentation file into a slide presentation file in a predetermined format through a slide file converter. 7. the method for webcast slide presentation file according to claim 6, is characterized in that, described step B1 comprises: When scheduling a web conference or during the web conference, the client as the chairperson of the conference needs to upload the corresponding slide presentation file. 8. the method for webcast slide presentation file according to claim 6, is characterized in that, described step B comprises: When the web server receives the command to obtain the corresponding slide from the client, it encapsulates the corresponding slide in an HTML page and sends it to the client. 9. the method for webcast slide presentation file according to claim 6, is characterized in that, described step B comprises: On the client operation page, the playback of each slide is guided by any slide. 10. the method for webcast slide presentation file according to claim 9, is characterized in that, described step B specifically comprises: During the online conference, as the client of the conference chairman, perform the slide presentation operation; The network server converts the corresponding slides and sends them to each client according to the presentation operation of the conference chairman.

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