WO2011140739A1

WO2011140739A1 - Method, system and server for sharing remote document

Info

Publication number: WO2011140739A1
Application number: PCT/CN2010/075532
Authority: WO
Inventors: 王强
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-05-13
Filing date: 2010-07-28
Publication date: 2011-11-17
Also published as: CN101834905B; CN101834905A

Abstract

The present invention discloses a method for sharing a remote document. The method includes: a server receives a request message transmitted by a terminal, the message requesting the control right for a shared document; the server transmits the corresponding control right for the shared document to said terminal according to the received request message; the server receives the operation instructions for the shared document, the instructions transmitted by the terminal after the terminal acquires the control right for the shared document; and the server performs operations on the shared document according to said operation instructions, and transmits the operation result to the terminals connected to said server. The present invention also correspondingly discloses a system and server for sharing a remote document. By storing a shared document and allocating control right to each terminal on a server, the present invention enables good synchronization of shared document contents for each terminal in processes of remote conferences.

Description

Remote document sharing method, system, and remote document sharing server

The present invention relates to the field of communications technologies, and in particular, to a remote document sharing method, system, and remote document sharing server. Background technique

With the rapid growth of wireless and cable broadband services, enterprise users represented by business people are increasingly participating in daily office and external communication, thereby enhancing internal cooperation, expanding external publicity, and promoting efficient business activities. To this end, many companies have to increase the number of people on business trips, and even to convene people from different departments and different companies to participate in one thing. These measures have caused a great waste of time and money.

If the company's internal employees or different companies can be free from time and place restrictions, anytime, anywhere, exchanges, seminars, and remote confirmation of objections will greatly improve the efficiency of the meeting and save the company's operating costs. The existing video conferencing and teleconferencing systems have improved the efficiency of communication and saved costs. However, existing video conferences and conference calls can only transmit video signals or voice signals. Because the content that can be delivered is limited, related documents cannot be immediately distributed and modified, so that the efficiency of remote collective office is still not high, although some Instant messaging software can transfer documents in real time, but each terminal has a backup of the document, and the modification of the document on each terminal is also invisible to other terminals, which inevitably makes the modification progress of the document and Modifications are not well synchronized. Summary of the invention

Based on the above problems existing in the prior art, the present invention provides a remote document sharing method, system, and remote document sharing server, which can effectively improve the efficiency of remote collective office. The present invention provides a remote document sharing method, including: a server receiving a request message sent by a terminal to obtain a control message for controlling a shared document; and a server sending a corresponding pair of shared documents to the terminal according to the received request message. The server receives an operation instruction of the terminal to the shared document after obtaining control of the shared document; and operates the shared document according to the operation instruction, and transmits the operation result to the terminal connected to the server.

The present invention further provides a remote document sharing server, comprising: a request message receiving unit, configured to receive a request message sent by the terminal to obtain control of the shared document; and a control right sending unit, configured to receive the unit according to the request message Receiving the request message, and sending the corresponding control right to the shared document to the terminal; the operation instruction receiving unit is configured to receive an operation instruction of the terminal to share the document after obtaining control of the shared document; And a unit, configured to operate the shared document according to the operation instruction, and transmit the operation result to the terminal connected to the server.

The invention also provides a remote document sharing system, comprising:

a server, configured to store a shared document, and receive a request message sent by the terminal to obtain a control message for the shared document, and send a corresponding control right to the shared document to the terminal according to the received request message; Receiving operation content of the shared document after the terminal obtains control of the shared document, and transmitting the operation result of the shared document to other terminals connected to the server;

The terminal, at least two terminals that are connected to the server in a wired or wireless manner, are used to obtain control of the operation of the shared document of the server, and then perform corresponding operations on the shared document.

The invention provides a remote document sharing method, a system and a remote document sharing server. By storing a shared document on a server and assigning control rights to each terminal, the shared document server can be good for each terminal in the remote conference process. Synchronize shared documents DRAWINGS

1 is a schematic flowchart of a remote document sharing method according to Embodiment 1 of the present invention; FIG. 2 is a schematic diagram of a remote document sharing system constructed by using Android as a server and a client application platform;

FIG. 3 is a schematic flowchart of a remote document sharing method according to Embodiment 2 of the present invention; FIG. 4 is a schematic flowchart of a remote document sharing method according to Embodiment 3 of the present invention; FIG. FIG. 6 is a schematic structural diagram of a remote document sharing system according to Embodiment 5 of the present invention; FIG. 7 is a display interface on a terminal of a remote document sharing system provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS Embodiment 1 of the present invention provides a remote document sharing method, and a flowchart thereof is shown in FIG. 1. The method includes the following steps:

S101: The server receives a request sent by the terminal to obtain a request message for operating the shared document. S102: The server sends a corresponding control right to the shared document to the terminal according to the received request message.

S103: The server receives an operation instruction of the terminal to share the document after obtaining control of the shared document.

S104: The server operates the shared document according to the operation instruction, and transmits the operation result to all terminals connected to the server.

For convenience of explanation, the following takes an Android as a server and a client application platform as an example to illustrate how to implement remote document sharing under such a system architecture. FIG. 2 is a remote document sharing system composed of Android as a server and a client application platform. Schematic, as shown in FIG. 2, first, the server and client software system implementing the present invention can be configured as follows:

Step 1: Add the following protocol modules to the server library layer (Android Libraries): Real-time control protocol RTCP to provide distributed data feedback, flow control and congestion Control, in this system for multimedia conference video, audio two-way transmission control; real-time transmission protocol RTP, providing standard data for transmitting audio and video, used in this system for multimedia conference video, audio two-way transmission;

Real-time streaming protocol RTSP, establishes document content transmission between server and client; Simple object access protocol SOAP, based on application layer-based access protocol, can penetrate most firewalls, used for document collaboration and conference permissions in this system Management transfer of commands;

Session creation protocol SIP, which is used in the system to initiate a conference startup and shutdown process based on the TCP/IP protocol;

Extensible Markup Language XML, which is used to compose commands, video and audio information, document information, user rights information, etc. into a cross-platform data stream.

In this solution, SIP will be a very important process, mainly completing the establishment, release and control process of related IP packet sessions. The complete SIP consists of four parts: SIP user agent, SIP registration server, SIP proxy server and SIP redirection. Server, our system belongs to the SIP user agent, and the other three servers of SIP can use the Internet ready-made service or can be established independently.

Step 2: Add the business logic layer to the application framework Application Framework, including the six business logics:

The XML data encapsulation/decapsulation controls the XmlPackage segment. The process encapsulates the multimedia and document information of user A in XML format and transmits it to user B through the distribution server. User B decapsulates through the program segment, and the layer belongs to the application. Layer, you need to define the port number Port Number;

The SOAP command encapsulates/decapsulates the SoapPackage section, and the process transmits the command sent by the user to the distribution server and determines it;

The SIP session controls the SipControl segment, and the process is packaged into a completed SIP session process through user interaction of the UI. The session command can be a standard SIP process or a IMS/NGN definition process. The RTP/RTCP control transmits the RTPTransmit segment for receiving/transmitting multimedia information in two directions, and the information data is handed over to the XmlPackage segment for processing, and presented to the user through the UI Application;

RTSP transmits an RTSPDocument segment for transmitting XmlPackage document information to the server in one direction, and receiving distribution information from the server;

The Datalnformation section, used to obtain video, audio information, or content information from a database document from the Android Driver layer, is the source of data for XmlPacage.

Step 3: Android Application is the user UI interface and operation layer. All user interactions are handled by the ConferenceSys process, using Linux window mechanism or browser technology. The core is Android graphics image library.

The client needs to be configured on the mobile terminal or the ordinary wired terminal. The main steps are as follows:

Step 1: The mobile terminal or the ordinary wired terminal uses the virtual private network VPN to log in to the Android server, and performs related authentication. The terminal that authenticates the terminal starts the client or the browser to log in to the remote document sharing server, and records and configures the state information. The IP protocol packet is recorded in the server user account. The IP protocol packet information includes: document ownership, terminal operation authority, and terminal conference status.

Step 2: The remote document sharing server establishes an independent user interval for each user to save the information to which it belongs, and controls related actions in user operations and real-time information forwarding. The server is in a multi-process state, and the main process includes the following Child process:

User information control sub-process Userlnfo, used to modify and audit user control rights and status information; Document information receiving sub-process DocRec, used to receive user review process information from control document review, including document modification, screen scrolling, etc.

The document control signaling receiving sub-process DocCon is configured to receive a control request command from different users, and the main process determines, according to the decision algorithm, whether to allow the control right to change or in what case. Change

The document information sending sub-process DocInfoSend is used to forward the document change information to the authorized users, so that they can participate in the review discussion in real time by listening, speaking, and watching;

User access/exit control sub-process UserAccept, which is used to control user access rights.

The system, whether it is the terminal or the server, involves the Linux driver layer, the middle layer abstraction layer, the business logic framework layer, the protocol interception resolution layer and the UI user interaction layer, and is implemented in a multi-process concurrent manner.

All users are in the virtual network composed of VPNs, and their IP addresses are internal subnet addresses. Therefore, calls and information transmission between each other are secure and reliable, and can be directly performed through IP addresses. Application on the client and server side The bidirectional RTCP/RTP/RSTP flow control mechanism ensures that the client document information changes can be collected in real time, and the change information is continuously distributed to the receiving end, so that a high signal quality can always be obtained under a certain bandwidth.

All client/browser information is configurable, and the control information for specific documents is adjusted by the server according to the authorization of the document owner. The basic protocols include: RTP, RTCP, IP/TCP, etc., and the master process The way to create threads is to complete different types of request packet packaging.

Because the mobile communication terminal can access the Internet, the whole system needs the participation of 3G modules. Under the Linux system, the 3G module will be connected by USB and PCIE, and at least two AT and Data TTYs devices need to be established. They are used to synchronize the AT commands communicated with the 3G module and the IP control commands and document information communicated with the server. In addition, related voice and video information can also be transmitted separately through the new TTYs channel.

According to the correspondingly configured servers and clients described above, the contents of the present invention will be described below in conjunction with specific embodiments.

Embodiment 2 of the present invention provides a remote document sharing method. The remote shared document described in the present invention is stored in a server for common review by multiple users. FIG. 3 is a second embodiment of the present invention. A schematic diagram of a remote document sharing method is proposed, as shown in FIG. As shown in the remote document sharing process, the method includes the following steps:

S201: Terminal A and terminal B access the server through VPN access authentication.

S202: After receiving the request message of the terminal A, the server sends the control right of the shared document to the terminal A.

S203: After obtaining the operation right of the shared document, the terminal A obtains the control right of the shared document, and has one or more of the control rights of adding, deleting, modifying, flipping, printing, projecting, saving, etc. of the document. Item, the corresponding operation can be performed on the document; terminal A proposes an operation on sharing the document.

S204: After receiving the operation request submitted by the terminal A, the server determines whether the terminal A has the control right to perform the operation.

S205: After the server determines that A has the control to perform the operation, terminal A may upload the content of the operation to be performed to the server; and the server operates the shared document stored in itself according to the received operation content. At the same time, in this step, it is possible to apply for controlling the authorization scope of the shared document, that is, it can request that some terminals can read the operation result of the shared document, and control the permissions of some terminals, so that the operation result of the shared document by the terminal A cannot be obtained. .

In this step, the local audio and video content can also be uploaded to the server through the multimedia session control, and the server forwards to other terminals connected to the server by using the real-time transmission protocol.

S206: After determining that the terminal B has the right to receive the shared document, the server sends the operation result of the shared document obtained according to the operation content of the shared document uploaded by the terminal A to the terminal B, and the other connection to the server and has Permission of the terminal. The process of transmitting the operation result to the terminal B may be performed by the document information transmission sub-process and transmitted according to the real-time streaming protocol.

In the process of performing the shared file in the foregoing embodiment, the actual server includes the voice signal and/or the video signal uploaded by each terminal connected to the terminal to be synchronized to other terminals connected to the user, thereby forming a form of the video conference. And each time the user who gains control has shared the text When the file is operated (including: add, delete, flip, modify, print, project, save, etc.), the operation instructions issued by the user are recorded on the server side for later query or for recovery of the shared document.

The third embodiment of the present invention provides a flow of the remote document sharing method in the third embodiment of the present invention. The third embodiment of the present invention provides a specific flow of control of the shared document in the case where the control right of the shared document has been issued. As shown in FIG. 4, the terminal currently connected to the server includes terminal A and terminal B, and terminal A has obtained control of operating the shared document. At this time, terminal B wants to obtain the shared document. Control of the operation includes the following steps:

S301: The terminal B issues a control right conversion request, and obtains control of the shared document, so as to be able to perform corresponding operations on the shared document.

S302: Since the control right of the shared document is exclusive, it can only be obtained by one terminal, and the current terminal A has obtained the control of the shared document, so the server needs to send a control right conversion request to the terminal A.

S303: The user of the terminal A needs to operate the shared document according to whether it still needs to operate the shared document, or according to the priority level of another terminal that initiates the application, whether it can agree to the change of the control right, and sends a rejection control right change message or agrees to the control right. Change message.

S304: After receiving the message that the terminal A sends the consent control change, the server reclaims the control right of the shared document, and sends the control right of the shared document to the terminal B according to the request of the terminal B.

S305: After obtaining the control of the operation of the shared document, the terminal B operates the shared document and uploads the operation result to the server.

S306: The server determines that the other terminal has the right to receive the modified result of the shared document, and sends the modified result of the shared document by the terminal B to the corresponding terminal.

FIG. 5 is a schematic structural diagram of a remote document sharing server according to Embodiment 4 of the present invention. As shown in FIG. 5, the remote document sharing server includes: The request message receiving unit 41 is configured to receive a request message sent by the terminal to obtain control of the shared document;

The control authority issuance unit 42 is configured to send a corresponding control right to the shared document to the terminal according to the request message received by the request message receiving unit 41;

An operation instruction receiving unit 43 is configured to receive an operation instruction of the terminal to share the document after obtaining control of the shared document;

The operation result synchronization unit 44 is configured to operate the shared document according to the operation instruction received by the operation instruction receiving unit, and transmit the operation result to the terminal connected to the server.

Preferably, the remote document sharing server further includes:

The control right recovery unit 45 is configured to: after the request message receiving unit 41 receives the request message, query whether the control right of the related shared document has been delivered, and if it has been delivered, send a message requesting the reclaiming permission to the terminal having the control right. And receiving the message of returning the control right sent by the terminal having the control right after releasing the control right, and notifying the control authority issuing unit,

The control right issuing unit is further configured to send a corresponding control right to the shared document to the terminal after receiving the notification of the control right recovery unit.

Preferably, the remote document sharing server may further include:

The signal transmission unit 46 is configured to synchronously output the voice signal and/or the video signal uploaded by the terminal connected to itself to other terminals connected to the server.

The operation instruction recording unit 47 is configured to record an operation instruction of the terminal for sharing the shared document with the control right of the shared document.

FIG. 6 is a schematic structural diagram of a remote document sharing system according to Embodiment 5 of the present invention. As shown in FIG. 6, the remote document sharing system includes:

a server 51, configured to store a shared document, and receive a request message sent by the terminal to obtain a control right of the shared document, and send a corresponding control right to the shared document to the terminal according to the received request message; For receiving the terminal to obtain control of the shared document The content of the operation of the shared document after the right, and the result of the operation of the shared document is transmitted to other terminals connected to the server;

The terminal 52, at least two terminals connected to the server in a wired or wireless manner, are used to obtain control of operation of the shared document of the server, perform corresponding operations on the shared document, and receive information sent by the server.

Preferably, the control rights obtained by the terminal 52 for sharing the document include: adding, deleting, scrolling, modifying, printing, projecting, and saving.

The display interface on the terminal 52 is as shown in FIG. 7, and includes multiple areas, which are:

Area 1 (Add/Remove/Arrange/Video/Voice/Security) can do the following: Operation 1: The user clicks the Add menu to add the document to the right document arrangement area shown in Figure 6, when the document does not enter the server. The other participants cannot see the document, and the color displayed in the document arrangement area is different from other documents. Once the user selects the synchronization in Figure 6, the document enters the server and completes the operation of adding the shared document. Gaining control will allow the document to be manipulated;

Operation 2: The user who owns the file ownership clicks the delete menu to delete the document from the server and document arrangement area, and other participants will no longer have control rights;

Operation 3: The user selects the arrangement menu, and can display multiple documents selected from the document arrangement area on the screen to enter the document review area, which is convenient for the participants to compare;

Operation 4: The user selects the video or voice menu, and can transfer its image or voice to other sites, otherwise the video and audio information will not be transmitted.

Operation 5: The security menu is the only way for users to access the conference. Only users who have passed the security authentication can obtain access review, otherwise they will not be able to enter the conference.

Area 2 (Flip/Modify/Print/Projection/Save/Sync) is implemented as follows:

Operation 1: Only one participant can control the document at a time. Other participants must first select the control area menu in Figure 6 and obtain the text if they are accepted by the controller at the time. File control

Operation 2: Users who gain control by selecting the Flip Menu can read any document at will during the meeting;

Operation 3: Users who gain control by selecting the Modify menu can modify any document at will during the meeting;

Operation 4: Only the document owner can select the print menu and choose to print the output to the printer controlled by that terminal. Other participants cannot perform this operation regardless of whether they have control or not. The purpose is to ensure that the security document is not Properly disseminated;

Operation 5: Each participant can project the terminal content onto the projector by selecting the projection menu, so that all participants in the large conference venue can see the relevant content;

Operation 6: The user who obtains the control can save the modified document to the server by saving it.

Operation 7: Only the document owner can select the synchronization menu, distribute the existing and the documents in the server to a terminal, and thus remain on the terminal, and the operation of the document will be controlled by the document security management; Synchronize with the server and synchronize with the terminal.

Area 3 (Terminal 1/../Terminal M) is implemented as follows:

Operation 1 : By selecting the add button in Figure 6, not only can the document be added, but also the end user can be added, allowing an end user to get the opportunity to enter the conference, and the user name and password can be set, and even the authentication mode can be securely accessed;

Operation 2: By selecting the deletion case in Figure 6, you can not only delete the document, but also forcibly withdraw the terminal user from the conference and have the permission;

Operation 3: Through the voice/video menu in Figure 6, you can selectively transfer video and voice to certain designated end users.

Operation 4: For the convenience of the user, the above operations can be directly performed in the terminal management area on the left side of FIG. 6; Area 4 (document 1/../document N) is implemented as follows:

Operation 1 : The document layout area on the right side of Figure 6 lists all the conference documents, including the uploaded server and also the terminal that has not been uploaded yet.

Operation 2: After the user selects some documents, they can directly operate according to the menu of Figure 6. The area 5 (document review area) is implemented as follows:

Operation 1: The user who obtains the control can perform the operations of scrolling through and modifying the documents displayed in the review area. All operations are synchronized by the server to the parties participating in the conference;

Operation 2: Allow users to manage the review area documents through the Arrange menu, support single document, multiple document display, and also support document display selection terminal, that is, allow those terminals to implement the document.

When the document owner chooses to delete or add the reviewer on the client, the relevant control signaling will be sent to the server through the IP packet. The server will modify the permission status of the relevant user, and will detect when the document information sending process selects the distribution. Database information, and the decision to distribute or not; IP packets of different formats will contain different meanings. Different information will be represented in the first byte field of the body data immediately following the IP header. For example, 00000000 indicates that the IP packet information is The control command, 00000001 indicates that the IP packet information is data information, and the content of the second byte field is a specific control command word.

The invention provides a remote document sharing method and a remote document sharing server. By storing a shared document on a server and assigning control rights to each terminal, the shared document can share the document well with each terminal in the remote conference process. content. The spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of the inventions

Claims

Claim

A remote document sharing method, characterized in that the method comprises:

The server receives a request message sent by the terminal to obtain a control message for the shared document, and sends a corresponding control right to the shared document to the terminal according to the received request message; the server receives the terminal and obtains the sharing After the control of the document, the operation instruction of the shared document is operated according to the operation instruction, and the operation result is transmitted to the terminal connected to the server.

The method according to claim 1, wherein after the server receives the request sent by the terminal to obtain the request message for the operation right of the shared document, the method further includes:

The server queries whether the control right of the shared document has been delivered, and sends a message requesting the reclaiming permission to the terminal having the control right when the server has been delivered;

The server receives the message of the returning control right sent by the terminal having the control right after releasing the control right, and sends the corresponding control right to the shared document to the terminal requesting the control of the shared document.

3. The method according to claim 1, wherein the control of the shared document comprises any combination of the following: adding, deleting, flipping, modifying, printing, projecting, saving.

The method according to claim 1, wherein after the server transmits the operation result to the terminal connected to the server, the method further includes:

The server synchronously outputs the voice signal and/or video signal uploaded by the terminal connected to itself to other terminals connected to itself.

The method according to claim 1, wherein the method further comprises: the server recording an operation instruction of the terminal to obtain the control of the shared document and the shared document.

6. A remote document sharing server, wherein the remote document sharing server comprises:

a request message receiving unit, configured to receive a request sent by the terminal to obtain control of the shared document Request message of rights;

a control delivery unit, configured to send, according to the request message received by the request message receiving unit, the corresponding control right to the shared document to the terminal;

An operation instruction receiving unit, configured to receive an operation instruction of the shared document by the terminal after obtaining control of the shared document;

The operation result synchronization unit is configured to operate the shared document according to the operation instruction received by the operation instruction receiving unit, and transmit the operation result to the terminal connected to the server.

7. The remote document sharing server of claim 6, wherein the remote document sharing server further comprises:

a control right recovery unit, configured to: after the request message receiving unit receives the request message, query whether the control right of the related shared document has been delivered, and when sent, send a message requesting the reclaiming permission to the terminal having the control right; and receiving And sending, by the terminal having the control right, a message for returning the control right after releasing the control right, and notifying the control right issuing unit;

8. The remote document sharing server of claim 6, wherein the remote document sharing server further comprises:

The signal transmission unit is configured to synchronously output the voice signal and/or video signal uploaded by the terminal connected to itself to other terminals connected to the server.

9. The remote document sharing server of claim 6, wherein the remote document sharing server further comprises:

An operation instruction recording unit is configured to record an operation instruction of the terminal to share the document that obtains control of the shared document.

10. A remote document sharing system, the system comprising a server and a terminal; wherein The server is configured to store a shared document, and receive a request message sent by the terminal to obtain a control right of the shared document, and send a corresponding control right to the shared document to the terminal according to the received request message; The method is further configured to receive an operation content of the shared document after the terminal obtains control of the shared document, and transmit the operation result of the shared document to another terminal connected to the server;

The terminal is configured to perform a corresponding operation on the shared document after obtaining control of the operation of the shared document of the server.