CN104601678A - High concurrence white board remote real-time synchronization method - Google Patents
High concurrence white board remote real-time synchronization method Download PDFInfo
- Publication number
- CN104601678A CN104601678A CN201410852518.8A CN201410852518A CN104601678A CN 104601678 A CN104601678 A CN 104601678A CN 201410852518 A CN201410852518 A CN 201410852518A CN 104601678 A CN104601678 A CN 104601678A
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- CN
- China
- Prior art keywords
- mirror image
- server
- synchronization message
- subscription
- message
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/401—Support for services or applications wherein the services involve a main real-time session and one or more additional parallel real-time or time sensitive sessions, e.g. white board sharing or spawning of a subconference
- H04L65/4015—Support for services or applications wherein the services involve a main real-time session and one or more additional parallel real-time or time sensitive sessions, e.g. white board sharing or spawning of a subconference where at least one of the additional parallel sessions is real time or time sensitive, e.g. white board sharing, collaboration or spawning of a subconference
-
- 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
Abstract
The invention discloses a high concurrence white board remote real-time synchronization method, including the step that a server end establishes subscription for a sending end and a receiving end, and establishes an image for a current white board. The image content is updated regularly by a timer, the sending end returns the latest image and subscription identification when logging in, and the receiving end returns the latest image, the subscription identification and a synchronous message after the latest image when logging in. The sending end generates the synchronous message and sending the synchronous message together with the subscription identification to a server when operating the white board, the server stores the synchronous message and sends the synchronous message to the receiving end according to the subscription identification, and the receiving end analyzes the synchronous message to complete operation. The high concurrence white board remote real-time synchronization method is extremely low in time delay, capable of adding the receiving end at any time by subscription, and furthermore, the generated image can be used for quickly restoring the white board state.
Description
Technical field
The present invention relates to a kind of data method, particularly relate to a kind of large concurrent blank remote real-time synchronous method.
Background technology
Blank is exactly that one piece of white electronic writing board is shared on computers by Faculty and Students, and conventional whiteboard data synchronous method generally has two kinds, and one is that transmitting terminal directly sends to receiving terminal, and another kind is forwarded by server.A kind of front method to receiving terminal limited amount system, cannot support large and give synchronous.Rear one is general all fairly simple, and server only provides the service of forwarding, easily causes loss.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of large concurrent blank remote real-time synchronous method, solve the whiteboard data stationary problem concurrent greatly between online large lectures teachers and students.
Technical scheme of the present invention is such: a kind of large concurrent blank remote real-time synchronous method, comprises the following steps:
1) server end is that the transmitting terminal of shared same blank and receiving terminal user set up a subscription, generates subscription identity;
2) server end is that current whiteboard makes first mirror image, and start timer, when the appointed interval time arrives, according to a upper mirror image and the synchronization message that occurs within the time interval of timer, make a new mirror image, after new mirror image completes, the upper mirror image of deletion and the interior synchronization message occurred of Timer interval, reset timer circulation and make mirror image;
3) when transmitting terminal logon server, subscription identity and up-to-date mirror image are sent to receiving terminal as returning by server;
4) when receiving terminal logon server, subscription identity, up-to-date mirror image and the synchronization message that occurs after having made up-to-date mirror image are sent to receiving terminal as returning by server;
5) when transmitting terminal user operation blank, produce a synchronizing white message, this synchronization message and subscription identity are sent to server by transmitting terminal;
6), when server end receives synchronization message and subscription identity, store synchronization message, search the recipient with identical subscription identity, synchronization message is sent to recipient successively;
7) recipient resolves message after receiving synchronization message, performs and operates accordingly.
Technical scheme provided by the present invention has following beneficial effect:
A) support that the user of 100,000 grades is synchronous, time delay is extremely low.
B) there is very strong retractility, as long as simple subscription operation just can increase transmitting terminal and receiving terminal fast, namely increase simultaneous user.
C) there is image feature, can quick-recovery blank state soon when the abnormal conditions such as net drop occur.
Accompanying drawing explanation
Fig. 1 is the synchronous schematic flow sheet of the present invention.
Embodiment
Below in conjunction with embodiment, the invention will be further described, but not as a limitation of the invention.
Incorporated by reference to Fig. 1, the blank program that the present embodiment relates to, between transmitting terminal and receiving terminal, synchronizing process is as follows:
1) server end is that the transmitting terminal of shared same blank and receiving terminal user set up a subscription, generates subscription identity (ID);
2) server end is that current whiteboard makes first mirror image, and start timer, when the appointed interval time arrives, according to a upper mirror image and the synchronization message that occurs within the time interval of timer, make a new mirror image, after new mirror image completes, the upper mirror image of deletion and the interior synchronization message occurred of Timer interval, reset timer circulation and make mirror image;
3) when transmitting terminal logon server, subscription identity (ID) and up-to-date mirror image are sent to receiving terminal as returning by server;
4) when receiving terminal logon server, subscription identity (ID), up-to-date mirror image and the synchronization message that occurs after having made up-to-date mirror image are sent to receiving terminal as returning by server;
5) when transmitting terminal user operation blank, produce a synchronizing white message, this synchronization message and subscription identity (ID) are sent to server by transmitting terminal;
6), when server end receives synchronization message and subscription identity (ID), store synchronization message, search the recipient with identical subscription identity (ID), synchronization message is sent to recipient successively;
7) recipient resolves message after receiving synchronization message, performs and operates accordingly.
Concrete synchronization message comprises following content: type of message, operation code, message content, sender ID.Wherein type of message is divided into person's handwriting operation, graphic operation, document function; Operation code is the character string of four 0-9 numerals; Message content is the target of operation, such as pixel-matrix, the document page number, figure number etc.; Sender ID is the unique identification that operation is initiated.
Claims (1)
1. a large concurrent blank remote real-time synchronous method, is characterized in that, comprise the following steps:
1) server end is that the transmitting terminal of shared same blank and receiving terminal user set up a subscription, generates subscription identity;
2) server end is that current whiteboard makes first mirror image, and start timer, when the appointed interval time arrives, according to a upper mirror image and the synchronization message that occurs within the time interval of timer, make a new mirror image, after new mirror image completes, the upper mirror image of deletion and the interior synchronization message occurred of Timer interval, reset timer circulation and make mirror image;
3) when transmitting terminal logon server, subscription identity and up-to-date mirror image are sent to receiving terminal as returning by server;
4) when receiving terminal logon server, subscription identity, up-to-date mirror image and the synchronization message that occurs after having made up-to-date mirror image are sent to receiving terminal as returning by server;
5) when transmitting terminal user operation blank, produce a synchronizing white message, this synchronization message and subscription identity are sent to server by transmitting terminal;
6), when server end receives synchronization message and subscription identity, store synchronization message, search the recipient with identical subscription identity, synchronization message is sent to recipient successively;
7) recipient resolves message after receiving synchronization message, performs and operates accordingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852518.8A CN104601678B (en) | 2014-12-31 | 2014-12-31 | A kind of big concurrent blank remote real-time synchronous method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852518.8A CN104601678B (en) | 2014-12-31 | 2014-12-31 | A kind of big concurrent blank remote real-time synchronous method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104601678A true CN104601678A (en) | 2015-05-06 |
| CN104601678B CN104601678B (en) | 2018-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410852518.8A Active CN104601678B (en) | 2014-12-31 | 2014-12-31 | A kind of big concurrent blank remote real-time synchronous method |
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| CN (1) | CN104601678B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111355700A (en) * | 2019-06-27 | 2020-06-30 | 鸿合科技股份有限公司 | Network whiteboard sharing method and system and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494820A (en) * | 2008-01-22 | 2009-07-29 | 三星电子株式会社 | System and method for profile synchronization |
| CN102195980A (en) * | 2011-04-26 | 2011-09-21 | 苏州阔地网络科技有限公司 | Webpage-based electronic whiteboard secure synchronization method and system |
| US20130229333A1 (en) * | 2012-03-05 | 2013-09-05 | Edward L. Schwartz | Automatic ending of interactive whiteboard sessions |
| CN103491055A (en) * | 2012-06-12 | 2014-01-01 | 中兴通讯股份有限公司 | Method for synchronizing information among clients, clients and server |
| CN103929320A (en) * | 2013-01-15 | 2014-07-16 | 中国银联股份有限公司 | Integration platform for IT system disaster recovery |
-
2014
- 2014-12-31 CN CN201410852518.8A patent/CN104601678B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494820A (en) * | 2008-01-22 | 2009-07-29 | 三星电子株式会社 | System and method for profile synchronization |
| CN102195980A (en) * | 2011-04-26 | 2011-09-21 | 苏州阔地网络科技有限公司 | Webpage-based electronic whiteboard secure synchronization method and system |
| US20130229333A1 (en) * | 2012-03-05 | 2013-09-05 | Edward L. Schwartz | Automatic ending of interactive whiteboard sessions |
| CN103491055A (en) * | 2012-06-12 | 2014-01-01 | 中兴通讯股份有限公司 | Method for synchronizing information among clients, clients and server |
| CN103929320A (en) * | 2013-01-15 | 2014-07-16 | 中国银联股份有限公司 | Integration platform for IT system disaster recovery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111355700A (en) * | 2019-06-27 | 2020-06-30 | 鸿合科技股份有限公司 | Network whiteboard sharing method and system and electronic equipment |
| CN111355700B (en) * | 2019-06-27 | 2023-04-07 | 鸿合科技股份有限公司 | Network whiteboard sharing method and system and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104601678B (en) | 2018-10-09 |
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