CN103763380A - Method and system for demonstrating data synchronously - Google Patents
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Abstract
The invention provides a method and system for demonstrating data synchronously. The system comprises a demonstration client, a watching client and a data server. The method includes the steps that S1, the demonstration client sends demonstration data and identification information of the demonstration data to the data server; S2, the data server compares the identification information of the received demonstration data with identification information of demonstration data stored currently, and if the identification information of the received demonstration data is not the same as the identification information of the demonstration data stored currently, the received demonstration data and the identification information of the received demonstration data are utilized to update the demonstration data stored currently and the identification information of the demonstration data stored currently; S3, the data server receives demonstration requests sent by the watching client and compares identification information of demonstration data received ultimately by the watching client in the demonstration requests with the identification information of the demonstration data stored currently, and if the identification information of the demonstration data received ultimately by the watching client is not the same as the identification information of the demonstration data stored currently, the demonstration data stored currently and the identification information of the demonstration data stored currently are sent to the watching client. Occupation of network bandwidths is reduced, and good data synchronism can also be maintained between the demonstration client and the watching client under narrow bandwidths.
Description
Technical field
The present invention relates to data synchronization technology, more particularly, relate to a kind of method and system of synchronous demonstrating data.
Background technology
Based on existing data synchronization technology, a plurality of clients that the data contents such as document are networked by network are more and more shared.In the system of existing synchronous demonstrating data, based on document sharing mode or Streaming Media processing mode in the demonstration client of networking with watch synchronous demonstrating data between client.
As shown in Figure 5, system 500 comprises server 510 and a plurality of client 520 to the existing system 500 that realizes synchronous demonstrating data based on document sharing mode, and server 510 is connected by network 530 with a plurality of clients 520.Server end provides signaling service and document sharing service, and according to actual conditions, signaling service and document sharing service can be deployed in identical or different servers.A plurality of clients 520 comprise demonstration client and watch client, demonstration client uploads onto the server 510 by demonstration data, when watching user end to server 510 request demonstration data, server 510 is pushed to demonstration data to watch client, client to be watched completes after the download of all demonstration datas, demonstrates operation.
In the existing system 500 that realizes synchronous demonstrating data based on document sharing mode, watch client demonstration data must be carried out to just Demonstration available operation after full dose download, when the bandwidth of network 530 is narrower, full dose download demonstration data need to spend the longer time, and user need to just can demonstrate operation after client waits as long for.In addition, also cannot shield the content of not wanting demonstration in demonstration data.Moreover the mode of initiatively carrying out full dose propelling movement by service end will cause network congestion in the situation that of narrow bandwidth, make to demonstrate client and watch the content of client asynchronous.
As shown in Figure 6, system 600 comprises server 610 and a plurality of client 620 to the existing system 600 that realizes synchronous demonstrating data based on Streaming Media processing mode, and server 610 is connected by network with a plurality of clients 620.Server end provides signaling service and data flow service, and same, according to actual conditions, signaling service and data flow service can be deployed in identical or different servers.A plurality of clients 620 comprise demonstration client and watch client, demonstration client uploads onto the server 610 by demonstration data, when watching user end to server 610 request demonstration data, server 610 adopts the mode of Streaming Media (UDP) to be pushed to demonstration data and watches client, watches client in download demonstration data, to demonstrate operation.
In the existing system 600 that realizes synchronous demonstrating data based on Streaming Media processing mode, although demonstration data has adopted the mode real-time Transmission of Streaming Media, but because the data volume of demo content is large, the in the situation that of narrow bandwidth, because network delay is unintelligible or occur the situation of mosaic by causing demonstrating picture, affect user and experience, and the mode of service end active push will cause network congestion in the situation that of narrow bandwidth, and make to demonstrate client and watch the content of client asynchronous.
Summary of the invention
System for existing synchronous demonstrating data, the demonstration data amount of service end active push is large, when the bandwidth of network is narrower, cause network congestion, the nonsynchronous defect of demo content that makes to demonstrate client and watch client, a kind of method and system of synchronous demonstrating data is provided, the data volume that reduces server and watch the demonstration data transmitting between client, the bandwidth occupancy of reduction system, make to demonstrate client and watch between client in the situation that the network bandwidth is narrower, also can realize the synchronism that demonstration data is good.
The technical scheme that the present invention solves its technical problem employing is: a kind of method of synchronous demonstrating data is provided, comprises the following steps:
S1, demonstration client send to data server by demonstration data and identification information thereof;
The identification information of demonstration data that S2, described data server relatively receive and the identification information of the demonstration data of current storage, if both are not identical, the demonstration data that use receives and demonstration data and the identification information thereof of the current storage of update of identification information thereof;
S3, described data server receive the demonstration request of watching client to send, described in comprising, described demonstration request watches the identification information of the demonstration data that client finally receives, and relatively, watch the identification information of demonstration data that client finally receives and the identification information of the demonstration data of current storage, if both are not identical, described in the demonstration data of current storage and identification information thereof being sent to, watch client.
Preferably, described demonstration data comprises basic data and increment operating data corresponding to described basic data, and described identification information comprises the identification information of basic data and the identification information of increment operating data.
Preferably, step S2 comprises following sub-step:
The identification information of basic data that S21, described data server relatively receive and the identification information of the basic data of current storage, if both are the identical sub-step S22 that carries out, if both are the not identical sub-step S23 that carries out;
The identification information of the identification information of the increment operating data that S22, described data server relatively receive and the increment operating data of current storage, if both not identical increment operating datas that use receives and increment operating data and the identification information thereof of the current storage of update of identification information thereof;
The basic data that S23, the use of described data server receive and basic data and identification information and increment operating data and the identification information thereof of identification information and increment operating data and the current storage of update of identification information thereof thereof.
Preferably, sub-step S22 comprises following secondary sub-step:
The identification information of the identification information of the increment operating data that S22, described data server relatively receive and the increment operating data of current storage;
If both are not identical for S23, the increment operating data that described data server use receives and increment operating data and the identification information thereof of the current storage of update of identification information thereof, and the basic data receiving and identification information, increment operating data and identification information thereof are preserved as historical record.
Preferably, step S3 comprises following sub-step:
S31, described data server are watched the identification information of basic data that client finally receives and the identification information of the basic data of current storage described in relatively, if both are the identical sub-step S32 that carries out, if both are the not identical sub-step S33 that carries out;
S32, described data server are watched the identification information of increment operating data that client finally receives and the identification information of the increment operating data of current storage described in relatively, if both are identical, do not watch client described in the increment operating data of current storage and identification information thereof being sent to;
S33, described data server watch client described in the basic data of current storage and identification information, increment operating data and identification information thereof are sent to.
A kind of system of synchronous demonstrating data is provided, comprise demonstration client, watch client and data server, described demonstration client with described in watch client by network, to be connected with described data server respectively; Described data server comprises:
Communication unit, the demonstration data and the identification information thereof that for receiving described demonstration client, send, and the demonstration request that sends of described client, watch the identification information of the demonstration data that client finally receives described in described demonstration request comprises;
The first memory cell, for storing demonstration data and identification information thereof, increment operating data and identification information thereof;
The first comparing unit, for relatively from described demonstration client to the identification information of demonstration data and the identification information of the demonstration data of current storage;
The second comparing unit, for watching the identification information of demonstration data that client finally receives and the identification information of the demonstration data of current storage described in relatively;
Processing unit, be connected with described communication unit, described the first memory cell, described the first comparing unit and described the second comparing unit respectively, for from described demonstration client to the identification information of demonstration data when not identical with the identification information of the demonstration data of current storage, use demonstration data and the identification information thereof of the current storage of the first memory cell described in the demonstration data that receives and update of identification information thereof; Described processing unit is not also for when the described identification information of watching the identification information of demonstration data that client finally receives and the demonstration data of current storage is not identical, obtain demonstration data and the identification information thereof of the current storage of described the first memory cell and by described communication unit, send to described in watch client.
Preferably, described demonstration data comprises basic data and increment operating data corresponding to described basic data, and described identification information comprises the identification information of basic data and the identification information of increment operating data.
Preferably, described the first comparing unit comprises:
The first identification information comparison module, for the identification information of basic data that relatively receives and the identification information of the basic data of the current storage of described the first memory cell;
The second identification information comparison module, for when the identification information of the basic data receiving is identical with the identification information of the basic data of the current storage of described the first memory cell, the identification information of the increment operating data of the identification information of the increment operating data relatively receiving and the current storage of described the first memory cell;
Described processing unit, when the identification information of the identification information of the basic data receiving and the basic data of the current storage of described the first memory cell is not identical, is used basic data and identification information and increment operating data and the identification information thereof of the current storage of the first memory cell described in the basic data that receives and identification information and increment operating data and update of identification information thereof;
Described processing unit, when the identification information of the identification information of the increment operating data receiving and the increment operating data of the current storage of described the first memory cell is not identical, is used increment operating data and the identification information thereof of the current storage of the first memory cell described in the increment operating data that receives and update of identification information thereof.
Preferably, described the second comparing unit comprises:
The 3rd identification information comparison module, for watching the identification information of basic data that client finally receives and the identification information of the basic data of the current storage of described the first memory cell described in relatively;
The 4th identification information comparison module, for when the described identification information of basic data of watching client finally to receive is identical with the identification information of the basic data of the current storage of described the first memory cell, watch the identification information of increment operating data that client finally receives and the identification information of the increment operating data of the current storage of described the first memory cell described in relatively;
Described processing unit when the described identification information of watching the identification information of basic data that client finally receives and the basic data of the current storage of described the first memory cell is not identical, obtain basic data and identification information, increment operating data and the identification information thereof of the current storage of described the first memory cell and by described communication unit, send to described in watch client;
Described processing unit when the described identification information of watching the identification information of increment operating data that client finally receives and the increment operating data of the current storage of described the first memory cell is not identical, obtain increment operating data and the identification information thereof of the current storage of described the first memory cell and by described communication unit, send to described in watch client.
Preferably, the system of synchronous demonstrating data of the present invention also comprises:
The second memory cell, is connected with described processing unit, for storing the demonstration data of described demonstration client transmission and the historical record of identification information thereof.
The method and system of synchronous demonstrating data of the present invention have following beneficial effect: by demonstration client, demonstration data and identification information thereof are submitted to data server, data server is only preserved demonstration data up-to-date in presentation process and identification information thereof, when receiving the demonstration request of watching client, if demonstration data upgrades, the measures of dispersion of demonstration data is sent to and watches client to demonstrate, reduced taking the network bandwidth, when the network bandwidth is narrower, also can guarantee the good synchronization of demonstrating client and watching demonstration data between client.
Accompanying drawing explanation
Fig. 1 is the structural representation of system first embodiment of synchronous demonstrating data of the present invention
Fig. 2 is the logic diagram of data server in system first embodiment of synchronous demonstrating data of the present invention;
Fig. 3 is the logic diagram of data server in system second embodiment of synchronous demonstrating data of the present invention;
Fig. 4 is the flow chart of method first embodiment of synchronous demonstrating data of the present invention;
Fig. 5 is the existing structural representation of realizing the system of synchronous demonstrating data based on document sharing mode;
Fig. 6 is the existing structural representation of realizing the system of synchronous demonstrating data based on Streaming Media processing mode.
Embodiment
Below in conjunction with drawings and Examples the present invention will be further explained explanation.
Fig. 1 is the structural representation of system 100 first embodiment of synchronous demonstrating data of the present invention, as shown in Figure 1, in the present embodiment, the system 100 of synchronous demonstrating data comprises demonstration client 110, watches client 120 and data server 130, demonstrates client 110 and watches client 120 by diverse networks such as internet, local area network (LAN)s, to be connected with data server 130 respectively.
Demonstration client 110 can be the terminal equipment that computer, mobile terminal etc. have network savvy, in demonstration client 110, demonstration applications is installed, when demonstrator demonstrates by demonstration client 110, demonstration applications is obtained demonstration data, create the identification information of demonstration data, and demonstration data and identification information thereof are sent to data server 130.Wherein, demonstration data comprises basic data and increment operating data corresponding to basic data, and identification information comprises the identification information of basic data and the identification information of increment operating data.Increment operating data refers to the data that operation that demonstrator carries out in presentation process in basic data increases, and for example basic data is document, and increment operating data is exactly the notes that increase on document.The identification information of basic data, for unique identification basic data, can comprise sequence number (ID), and sequence number can generate according to the timestamp of this basic data.The identification information of increment operating data, for unique identification increment operating data, can comprise sequence number (ID), and sequence number can generate according to the timestamp of this increment operating data.In the present embodiment, demonstration data can be document files such as word file, PPT, TXT, now basic data is patterned document files, also can be described as demonstration base map, increment operating data is exactly the operating data increasing on demonstration base map in presentation process, and visible basic data and increment operating data have corresponding relation.For example, demonstrator demonstrates PPT in demonstration client 110 by demonstration applications, current demonstration on the PPT of the 2nd page annotated and commented on, demonstration applications is obtained current demonstration base map, and the ID of establishment demonstration base map, obtain annotations and comments, and create the ID of annotations and comments, this demonstration base map and this annotations and comments of acquisition have corresponding relation.Then demonstration applications together sends to data server 130 by demonstration base map and ID, corresponding annotations and comments and ID thereof.
Watching client 120 can be the terminal equipment that computer, mobile terminal etc. have network savvy, watch in client 120 demonstration applications is installed, beholder can play the demonstration data receiving by demonstration applications, the demonstration applications of watching client 120 is also for sending demonstration request to data server 130, and demonstration request comprises the identification information of watching the demonstration data that client 120 finally receives.
In the present embodiment, the logic diagram of data server 130 as shown in Figure 2, communication unit 131, the first memory cell 132, the first comparing unit 133 and the second comparing unit 134 that data server 130 comprises processing unit 135 and is connected with processing unit 135 respectively.Processing unit 135 is carried out corresponding work for controlling each unit of data server 130, communication unit 131 for by network with demonstration client 110 with watch client 120 to carry out information interaction, the first memory cell 132 is for storing demonstration data and identification information thereof, increment operating data and identification information thereof, the identification information of demonstration data that the first comparing unit 133 receives from demonstration client 110 for comparison and the identification information of the demonstration data of current storage, the second comparing unit 134 is for the identification information of demonstration data relatively watching client 120 and finally receive and the identification information of the demonstration data of current storage.
Wherein, the first comparing unit 133 comprises:
The first identification information comparison module 1331, for the identification information of basic data that relatively receives and the identification information of the basic data of the first memory cell 132 current storages;
The second identification information comparison module 1332, for when the identification information of the basic data receiving is identical with the identification information of the basic data of described the first memory cell 132 current storages, the identification information of the increment operating data of the identification information of the increment operating data relatively receiving and the first memory cell 132 current storages.
The second comparing unit 134 comprises:
The 3rd identification information comparison module, for relatively watching the identification information of basic data that client 120 finally receives and the identification information of the basic data of the first memory cell 132 current storages;
The 4th identification information comparison module, for when the identification information of the basic data of watching client 120 finally to receive is identical with the identification information of the basic data of the first memory cell 132 current storages, relatively watch the identification information of increment operating data that client 120 finally receives and the identification information of the increment operating data of the first memory cell 132 current storages.
When communication unit 131 receives demonstration data that demonstration client 110 sends and identification information thereof, processing unit 135 obtains the identification information of the basic data of the first memory cell 132 current storages, and call the first identification information comparison module 1331, the identification information of the basic data of the identification information of the basic data relatively receiving and the first memory cell 132 current storages, the first identification information comparison module 1331 is by comparative result A output processing unit 135, if comparative result A is when to be the identification information of basic data that receives identical with the identification information of the basic data of the first memory cell 132 current storages, processing unit 135 obtains the identification information of the increment operating data of the first memory cell 132 current storages, and call the second identification information comparison module 1332, the identification information of the increment operating data of the identification information of the increment operating data relatively receiving and the first memory cell 132 current storages, the second identification information comparison module 1332 is by comparative result B output processing unit 135.If comparative result A is not when to be the identification information of the identification information of basic data that receives and the basic data of the first memory cell 132 current storages identical, the basic data that processing unit 135 uses receive and basic data and identification information and increment operating data and the identification information thereof of identification information and increment operating data and update of identification information the first memory cell 132 current storages thereof thereof, renewal is herein real in replacing.If comparative result B is when to be the identification information of increment operating data that receives identical with the identification information of the increment operating data of the first memory cell 132 current storages, demonstration data and identification information thereof that processing unit 135 does not send demonstration client 110 do not carry out any operation.If comparative result B is not when to be the identification information of the identification information of increment operating data that receives and the increment operating data of the first memory cell 132 current storages identical, the increment operating data that processing unit 135 uses receive and increment operating data and the identification information thereof of update of identification information the first memory cell 132 current storages thereof, renewal is herein real in replacing.What so, guaranteed in the first memory cell 132 storage is up-to-date demonstration data and identification information thereof.
When communication unit 131 receives the demonstration request of watching client 120 transmissions, processing unit 135 obtains the identification information of the basic data of current storage in the first memory cell 132, and call the 3rd identification information comparison module 1341 and relatively watch the identification information of basic data that client 120 finally receives and the identification information of the basic data of the first memory cell 132 current storages, the 3rd identification information comparison module 1341 is by comparative result C output processing unit 135.If comparative result C is when to be the identification information of basic data of watching client 120 finally to receive identical with the identification information of the basic data of the first memory cell 132 current storages, processing unit 135 obtains the identification information of the increment operating data of the first memory cell 132 current storages, and call the 4th identification information comparison module 1342 and relatively watch the identification information of increment operating data that client 120 finally receives and the identification information of the increment operating data of the first memory cell 132 current storages, the 4th identification information comparison module 1342 is by comparative result D output processing unit 135.If comparative result C is that while watching the identification information of the identification information of basic data that client 120 finally receives and the basic data of the first memory cell 132 current storages not identical, processing unit 135 obtains basic data and identification information, increment operating data and the identification information thereof of the first memory cell 132 current storages and sent to and watched client 120 by communication unit 131.If comparative result D is when to be the identification information of increment operating data of watching client 120 finally to receive identical with the identification information of the increment operating data of the first memory cell 132 current storages, represent not have new demonstration data to need demonstration, now processing unit 135 is left intact.If comparative result D is that while watching the identification information of the identification information of increment operating data that client 120 finally receives and the increment operating data of the first memory cell 132 current storages not identical, processing unit 135 obtains increment operating data and the identification information thereof of the first memory cell 132 current storages and sent to and watched client 120 by communication unit 131.So, data server 130 is only to watching client 120 to return to up-to-date demonstration data, reduced the taking of the network bandwidth, even when the network bandwidth is narrower, also can have guaranteed to demonstrate client 110 and watch the good synchronism of demonstration data between client 120.
In the first embodiment of the system 100 of synchronous demonstrating data of the present invention, demonstration data is divided into basic data and increment operating data according to the upper difference of use, by demonstration client 110, be submitted to data server 130, data server 130 is up-to-date basic data and corresponding increment operating data only preserve presentation process in the first memory cell 132 in, when receiving the demonstration request of watching client 120, if demonstration data upgrades, the measures of dispersion of demonstration data is sent to and watches client 120 to demonstrate, reduced taking the network bandwidth, when the network bandwidth is narrower, also can guarantee the good synchronization of demonstrating client and watching demonstration data between client.
In the second embodiment of the system 100 of synchronous demonstrating data of the present invention, the system 100 of synchronous demonstrating data comprises demonstration client 110, watches client 120 and data server 130, demonstrates client 110 and watches client 120 by network, to be connected with data server 130 respectively.Wherein, the logic diagram of data server 130 as shown in Figure 3, in the present embodiment, data server 130 comprises processing unit 135 and is connected with processing unit 135 respectively communication unit 131, the first memory cell 132, the first comparing unit 133, the second comparing unit 134 and the second memory cell 136.
The difference of the present embodiment and system 100 first embodiment is, data server 130 also comprises that the second memory cell 136, the second memory cell 136 are for the demonstration data storing demonstration client 110 and send and the historical record of identification information thereof.After demonstration finishes, watch client 120 can download from data server 130 historical record of the demonstration data of this demonstration.
Concrete, when communication unit 131 receives demonstration data that demonstration client 110 sends and identification information thereof, whether the identification information that processing unit 135 calls the identification information of basic data that the first identification information comparison module 1331 relatively receives and the basic data of the first memory cell 132 current storages is identical, when the identification information of the basic data receiving is identical with the identification information of the basic data of the first memory cell 132 current storages, processing unit 135 calls the second identification information comparison module 1332, the identification information of the increment operating data of the identification information of the increment operating data relatively receiving and the first memory cell 132 current storages, when if the identification information of two increment operating datas is different, the increment operating data that processing unit 135 uses receive and increment operating data and the identification information thereof of update of identification information the first memory cell 132 current storages thereof, and processing unit 135 is by the basic data and the identification information thereof that receive from demonstration client 110, increment operating data and identification information storage thereof are in the second memory cell 130, as historical record, preserve.
When the identification information of the identification information of the basic data receiving and the basic data of the first memory cell 132 current storages is not identical, processing unit 135 is used the basic data that receives and basic data and identification information and increment operating data and the identification information thereof of identification information and increment operating data and update of identification information the first memory cell 132 current storages thereof thereof, and the basic data receiving and identification information thereof and increment operating data and identification information storage thereof are preserved as historical record to the second memory cell 136.
Fig. 4 is the flow chart of method first embodiment of synchronous demonstrating data of the present invention, as shown in Figure 4, in the present embodiment, the method of synchronous demonstrating data is for demonstrating client 110 and watch synchronous demonstrating data between client 120 in the system 100 of synchronous demonstrating data, and the method for synchronous demonstrating data comprises the following steps:
S1, demonstration client 110 send to data server 130 by demonstration data and identification information thereof;
The identification information of demonstration data that S2, data server 130 relatively receive and the identification information of the demonstration data of current storage, if both are not identical, the demonstration data that use receives and demonstration data and the identification information thereof of the current storage of update of identification information thereof;
S3, data server 130 receive the demonstration request of watching client 120 to send, demonstration request comprises the identification information of watching the demonstration data that client 120 finally receives, and relatively watch the identification information of demonstration data that client 120 finally receives and the identification information of the demonstration data of current storage, if both are not identical, the demonstration data of current storage and identification information thereof are sent to and watch client 120.
In the step S1 of the present embodiment, when demonstrator demonstrates by demonstration client 110, demonstration client 110(passes through demonstration applications) obtain demonstration data, create the identification information of demonstration data, and demonstration data and identification information thereof are sent to data server 130.Wherein, demonstration data comprises basic data and increment operating data corresponding to basic data, and identification information comprises the identification information of basic data and the identification information of increment operating data.Increment operating data refers to the data that operation that demonstrator carries out in presentation process in basic data increases, and for example basic data is document, and increment operating data is exactly the notes that increase on document.The identification information of basic data, for unique identification basic data, can comprise sequence number (ID), and sequence number can generate according to the timestamp of this basic data.The identification information of increment operating data, for unique identification increment operating data, can comprise sequence number (ID), and sequence number can generate according to the timestamp of this increment operating data.In the present embodiment, demonstration data can be document files such as word file, PPT, TXT, now basic data is patterned document files, also can be described as demonstration base map, increment operating data is exactly the operating data increasing on demonstration base map in presentation process, and visible basic data and increment operating data have corresponding relation.For example, demonstrator demonstrates PPT in demonstration client 110 by demonstration applications, current demonstration on the PPT of the 2nd page annotated and commented on, demonstration applications is obtained current demonstration base map, and the ID of establishment demonstration base map, obtain annotations and comments, and create the ID of annotations and comments, this demonstration base map and this annotations and comments of acquisition have corresponding relation.Then demonstrate client 110(and pass through demonstration applications) demonstration base map and ID, corresponding annotations and comments and ID thereof are together sent to data server 130.
Beholder can be by watching the demonstration applications in client 120 to play the demonstration data receiving, in presentation process, the demonstration applications of watching client 120 is also for sending demonstration request to data server 130, and demonstration request comprises the identification information of watching the demonstration data that client 120 finally receives.
The step S2 of the present embodiment comprises the identification information of basic data that following sub-step: S21, data server 130 relatively receive and the identification information of the basic data of current storage, if both are the identical sub-step S22 that carries out, if both are the not identical sub-step S23 that carries out; The identification information of the identification information of the increment operating data that S22, data server 130 relatively receive and the increment operating data of current storage, if both identical end operations, if both not identical increment operating datas that use receives and increment operating data and the identification information thereof of the current storage of update of identification information thereof; The basic data that S23, data server 130 uses receive and basic data and identification information and increment operating data and the identification information thereof of identification information and increment operating data and the current storage of update of identification information thereof thereof, renewal is herein real in replacing.What so, guaranteed in data server 130 storage is up-to-date demonstration data and identification information thereof.
The step S3 of the present embodiment comprises when following sub-step: S31, data server 130 receive the demonstration request of watching client 120 transmissions, relatively watch the identification information of basic data that client 120 finally receives and the identification information of the basic data of current storage, if both are the identical sub-step S32 that carries out, if both are the not identical sub-step S33 that carries out; S32, data server 130 are relatively watched the identification information of increment operating data that client 120 finally receives and the identification information of the increment operating data of current storage, if both are identical does not do further processing, if both are identical, the increment operating data of current storage and identification information thereof are not sent to and watch client 120; S33, data server 130 send to the basic data of current storage and identification information, increment operating data and identification information thereof to watch client 120.So, data server 130 is only to watching client 120 to return to up-to-date demonstration data, reduced the taking of the network bandwidth, even when the network bandwidth is narrower, also can have guaranteed to demonstrate client 110 and watch the good synchronism of demonstration data between client 120.
In the first embodiment of the method for synchronous demonstrating data of the present invention, demonstration data is divided into basic data and increment operating data according to the upper difference of use, by demonstration client 110, be submitted to data server 130, data server 130 is only preserved basic data up-to-date in presentation process and corresponding increment operating data, when receiving the demonstration request of watching client 120, if demonstration data upgrades, the measures of dispersion of demonstration data is sent to and watches client 120 to demonstrate, reduced taking the network bandwidth, when the network bandwidth is narrower, also can guarantee the good synchronization of demonstrating client and watching demonstration data between client.
In method second embodiment of synchronous demonstrating data of the present invention, be with the difference of method first embodiment of synchronous demonstrating data, the sub-step S22 of step S2 comprises the identification information of the identification information of the increment operating data that following secondary sub-step: S22, data server 130 relatively receive and the increment operating data of current storage; If both are not identical for S23, the increment operating data that data server use receives and increment operating data and the identification information thereof of the current storage of update of identification information thereof, and the basic data receiving and identification information, increment operating data and identification information thereof are preserved as historical record.In the present embodiment, data server 130 is except storing up-to-date demonstration data and identification information thereof, also record the historical record of demonstration data in whole presentation process, watching client 120 to finish, after synchronous demonstrating, can also obtain from data server 130 historical data of this demonstration.All clients 120 of watching not necessarily finish (exiting) synchronous demonstrating simultaneously, so it can download from data server 130 historical data complete or part of this demonstration.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in claim scope of the present invention.
Claims (10)
1. a method for synchronous demonstrating data, is characterized in that, comprises the following steps:
S1, demonstration client (110) send to data server (130) by demonstration data and identification information thereof;
The identification information of demonstration data that S2, described data server (130) relatively receive and the identification information of the demonstration data of current storage, if both are not identical, the demonstration data that use receives and demonstration data and the identification information thereof of the current storage of update of identification information thereof;
S3, described data server (130) receive the demonstration request of watching client (120) to send, described in comprising, described demonstration request watches the identification information of the demonstration data that client (120) finally receives, and relatively, watch the identification information of demonstration data that client (120) finally receives and the identification information of the demonstration data of current storage, if both are not identical, described in the demonstration data of current storage and identification information thereof being sent to, watch client (120).
2. the method for synchronous demonstrating data according to claim 1, it is characterized in that, described demonstration data comprises basic data and increment operating data corresponding to described basic data, and described identification information comprises the identification information of basic data and the identification information of increment operating data.
3. the method for synchronous demonstrating data according to claim 2, is characterized in that, step S2 comprises following sub-step:
The identification information of basic data that S21, described data server (130) relatively receive and the identification information of the basic data of current storage, if both are the identical sub-step S22 that carries out, if both are the not identical sub-step S23 that carries out;
The identification information of increment operating data that S22, described data server (130) relatively receive and the identification information of the increment operating data of current storage, if both not identical increment operating datas that use receives and increment operating data and the identification information thereof of the current storage of update of identification information thereof;
The basic data that S23, described data server (130) use receive and basic data and identification information and increment operating data and the identification information thereof of identification information and increment operating data and the current storage of update of identification information thereof thereof.
4. the method for synchronous demonstrating data according to claim 3, is characterized in that, sub-step S22 comprises following secondary sub-step:
The identification information of increment operating data that S22, described data server (130) relatively receive and the identification information of the increment operating data of current storage;
If both are not identical for S23, the increment operating data that described data server use receives and increment operating data and the identification information thereof of the current storage of update of identification information thereof, and the basic data receiving and identification information, increment operating data and identification information thereof are preserved as historical record.
5. the method for synchronous demonstrating data according to claim 2, is characterized in that, step S3 comprises following sub-step:
S31, described data server (130) are watched the identification information of basic data that client (120) finally receives and the identification information of the basic data of current storage described in relatively, if both are the identical sub-step S32 that carries out, if both are the not identical sub-step S33 that carries out;
S32, described data server (130) are watched the identification information of increment operating data that client (120) finally receives and the identification information of the increment operating data of current storage described in relatively, if both are identical, do not watch client (120) described in the increment operating data of current storage and identification information thereof being sent to;
S33, described data server (130) watch client (120) described in the basic data of current storage and identification information, increment operating data and identification information thereof are sent to.
6. the system of synchronous demonstrating data, comprise demonstration client (110), watch client (120) and data server (130), described demonstration client (110) with described in watch client (120) by network, to be connected with described data server (130) respectively; It is characterized in that, described data server (130) comprising:
Communication unit (131), be used for receiving demonstration data and the identification information thereof that described demonstration client (110) sends, and the demonstration request that sends of described client, described in comprising, described demonstration request watches the identification information of the demonstration data that client (120) finally receives;
The first memory cell (132), for storing demonstration data and identification information thereof, increment operating data and identification information thereof;
The first comparing unit (133), the identification information of demonstration data receiving from described demonstration client (110) for comparison and the identification information of the demonstration data of current storage;
The second comparing unit (134), for watching the identification information of demonstration data that client (120) finally receives and the identification information of the demonstration data of current storage described in relatively;
Processing unit (135), be connected with described communication unit (131), described the first memory cell (132), described the first comparing unit (133) and described the second comparing unit (134) respectively, for when the identification information of the identification information of demonstration data receiving from described demonstration client (110) and the demonstration data of current storage is not identical, use demonstration data and the identification information thereof of the current storage of the first memory cell (132) described in the demonstration data that receives and update of identification information thereof; Described processing unit (135) is not also for when the described identification information of watching the identification information of demonstration data that client (120) finally receives and the demonstration data of current storage is not identical, obtain demonstration data and the identification information thereof of the current storage of described the first memory cell (132) and by described communication unit (131), send to described in watch client (120).
7. the system of synchronous demonstrating data according to claim 6, it is characterized in that, described demonstration data comprises basic data and increment operating data corresponding to described basic data, and described identification information comprises the identification information of basic data and the identification information of increment operating data.
8. the system of synchronous demonstrating data according to claim 7, is characterized in that, described the first comparing unit (133) comprising:
The first identification information comparison module (1331), for the identification information of basic data that relatively receives and the identification information of the basic data of the current storage of described the first memory cell (132);
The second identification information comparison module (1332), for when the identification information of the basic data receiving is identical with the identification information of the basic data of the current storage of described the first memory cell (132), the identification information of the increment operating data of the identification information of the increment operating data relatively receiving and the current storage of described the first memory cell (132);
Described processing unit (135), when the identification information of the identification information of the basic data receiving and the basic data of the current storage of described the first memory cell (132) is not identical, is used basic data and identification information and increment operating data and the identification information thereof of the current storage of the first memory cell (132) described in the basic data that receives and identification information and increment operating data and update of identification information thereof;
Described processing unit (135), when the identification information of the identification information of the increment operating data receiving and the increment operating data of the current storage of described the first memory cell (132) is not identical, is used increment operating data and the identification information thereof of the current storage of the first memory cell (132) described in the increment operating data that receives and update of identification information thereof.
9. the system of synchronous demonstrating data according to claim 8, is characterized in that, described the second comparing unit (134) comprising:
The 3rd identification information comparison module (1341), for watching the identification information of basic data that client (120) finally receives and the identification information of the basic data of the current storage of described the first memory cell (132) described in relatively;
The 4th identification information comparison module (1342), for when the described identification information of basic data of watching client (120) finally to receive is identical with the identification information of the basic data of the current storage of described the first memory cell (132), watch the identification information of increment operating data that client (120) finally receives and the identification information of the increment operating data of the current storage of described the first memory cell (132) described in relatively;
Described processing unit (135) when the described identification information of watching the identification information of basic data that client (120) finally receives and the basic data of the current storage of described the first memory cell (132) is not identical, obtain basic data and identification information, increment operating data and the identification information thereof of the current storage of described the first memory cell (132) and by described communication unit (131), send to described in watch client (120);
Described processing unit (135) when the described identification information of watching the identification information of increment operating data that client (120) finally receives and the increment operating data of the current storage of described the first memory cell (132) is not identical, obtain increment operating data and the identification information thereof of the current storage of described the first memory cell (132) and by described communication unit (131), send to described in watch client (120).
10. the system of synchronous demonstrating data according to claim 6, is characterized in that, also comprises:
The second memory cell (136), is connected with described processing unit (135), for storing the demonstration data of described demonstration client (110) transmission and the historical record of identification information thereof.
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