CN101079840A - A data transmission system and method - Google Patents
A data transmission system and method Download PDFInfo
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- CN101079840A CN101079840A CN 200710073345 CN200710073345A CN101079840A CN 101079840 A CN101079840 A CN 101079840A CN 200710073345 CN200710073345 CN 200710073345 CN 200710073345 A CN200710073345 A CN 200710073345A CN 101079840 A CN101079840 A CN 101079840A
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Abstract
The invention discloses a data transmitting system and method, which comprises the following parts: multiple connecting units to build different patterns of connection, data transmitting unit to transmit terminal data of executing terminal, wherein the terminal contains starting unit to trigger to build multiple connections for multiple connection building units separately, selecting unit to build one connection from multiple connections built by building unit to transmit data through data transmitting unit. The invention transmits data from optimum connection of multiple connections according to the character of business data and each connection, which improves the communication quality of connection.
Description
Technical field
The present invention relates to the computer communication technology field, more particularly, relate to a kind of data transmission system and method.
Background technology
The network instant communication instrument has become the requisite media of communication of user, and it not only is applied to amusement and recreation at ordinary times, and has also obtained at work using widely.Wherein picture transmission, expression transmission, transmitting/receiving file, look big data quantity transport service such as audio frequency chat and also in JICQ, obtained extensive use.These big data quantity transport services mainly realize by end-to-end transmission means.
The mode that connects between at present end-to-end has a variety of, and for example TCP is direct-connected, UDP is direct-connected, P2P connection, TCP transit server, UDP transit server etc., and the communication quality and the transmission characteristic of each connection have nothing in common with each other.Usually after the successes that connect such as direct-connected between first node and the Section Point or transit server, on this connects, communicate always, disconnect or service ending up to connecting.
Yet aforesaid way can't control effectively to various types of connections in connecting the process of setting up, for example the priority orders of uncontrollable various connections.For different types of service, have different transmission demand usually, therefore for arbitrary business, all there is the connected mode that meets demand most.For example for looking the audio frequency chat service, UDP is direct-connected, and to be better than TCP direct-connected.And existing mode can't select to meet most the connection of demand according to business demand when connecting.
In addition, owing to communicate in the process after connecting foundation, existing system can't be changed the connection of having set up according to the actual state of network, and this has caused following shortcoming: can't create new connection when connecting unusual the disconnection and continue to keep communication; The new connection that can't create better quality when quality of connection is poor replaces existing the connection, for example the direct-connected bandwidth of TCP is very low, file transfer is very slow, can't connect by attempting setting up transit server, to improve file transfer speed by the transit server connected mode.
Summary of the invention
The technical problem to be solved in the present invention is that the problem at selecting and dynamically adjust connected mode in the above-mentioned transfer of data provides a kind of data transmission system and method.
The technical scheme that the present invention solves the problems of the technologies described above is, a kind of data transmission system is provided, be used to realize the transfer of data of terminal-to-terminal service, described terminal comprises a plurality of data transmission units that the connection of setting up dissimilar connections is set up the unit and is used for actuating station opposite end transfer of data that are respectively applied for, and described terminal also includes:
Start unit is used to trigger described a plurality of connection and sets up the unit and begin to set up a plurality of connections respectively;
Selected cell is used for setting up the connection of setting up the unit from described a plurality of connections and selects a connection, for data transmission unit transmission data.
In a kind of data transmission system of the present invention, described selected cell further comprises:
The priority memory cell is used to store the priority of each connection;
Select to carry out subelement, be used for selecting to have the connection of limit priority, and remove all unselected connections according to the connection that the data of described priority memory cell are finished from foundation.
In a kind of data transmission system of the present invention, described a plurality of dissimilar connection comprises that UDP is direct-connected, TCP is direct-connected, UDP transit server and TCP transit server, and the priority of above-mentioned connection is followed successively by from high to low in the described priority memory cell: UDP is direct-connected, TCP is direct-connected, UDP transit server, TCP transit server.
In a kind of data transmission system of the present invention, also comprise memory cell start-up time, be used to store the start-up time of each connection, described start unit starts each connection according to the data-triggered in the start-up time memory cell and sets up the unit.
In a kind of data transmission system of the present invention, also comprise judging unit, whether unusual, and described start unit is triggered connect and set up the unit and connect if being used for judgment data transmission.
The present invention also provides a kind of data transmission method, is used to realize the transfer of data of terminal-to-terminal service, may further comprise the steps:
(a) first starting terminal is set up a plurality of dissimilar connections, and described connection is used for data are sent to second terminal from first terminal;
(b) use one in described a plurality of connections to carry out transfer of data, and stop other connection.
In a kind of data transmission method of the present invention, (a) further comprises before in described step: judge whether the current transmission rate that is used to transmit the connection of data is lower than the set rate threshold value, and when transmission rate is lower than the set rate threshold value execution in step (a).
In a kind of data transmission method of the present invention, described a plurality of dissimilar connections are started to set up or start at interval by first terminal simultaneously sets up.
In a kind of data transmission method of the present invention, described a plurality of dissimilar connection comprises that UDP is direct-connected, TCP is direct-connected, UDP transit server and TCP transit server, wherein UDP is direct-connected, TCP is direct-connected starts simultaneously, the UDP transit server is direct-connected at UDP, start in the scheduled time after the direct-connected startup of TCP, and the TCP transit server is direct-connected at UDP, TCP is direct-connected, the UDP transit server is all failed, and the back starts.
In a kind of data transmission method of the present invention, described a plurality of dissimilar connections have different priority, and described step (b) further comprises:
(b1) when first connection is finished, judge described first priority that connects,, then use described first connection to transmit data and execution in step (b2) if described first connection has first priority; If described first connection does not have first priority, then execution in step (b3);
(b2) stop to set up other connection;
(b3) continue to set up other connection, and execution in step (b4);
(b4) when next connection is finished, judge the priority of described next connection,, then use this connection to carry out transfer of data if described next connection has first priority, and execution in step (b2), if described next connection does not have the first priority execution in step (b3).
A kind of data transmission system of the present invention and method according to business datum and each connection characteristics, are selected optimum connection to carry out transfer of data from a plurality of connections, thereby have been improved the communication quality that connects.In addition, by priority configuration, can effectively reduce the communication pressure of server to transit server.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of a kind of data transmission system first embodiment of the present invention;
Fig. 2 is the structural representation of selected cell among Fig. 1;
Fig. 3 is the structural representation of a kind of data transmission system second embodiment of the present invention;
Fig. 4 is the flow chart of a kind of data transmission method first embodiment of the present invention;
Fig. 5 is a detail flowchart of selecting Connection Step among Fig. 4;
Fig. 6 is the flow chart of a kind of data transmission method second embodiment of the present invention.
Embodiment
The present invention is when carrying out end-to-end transmission data, according to business datum (for example video data, instant session data, real-time voice data etc.) and each connection characteristics, two stages after connecting foundation and setting up are to being configured each start-up time that is connected and priority, connect the process of setting up thereby effectively controlled, the present invention also connects by dynamically switching, and has kept stability of data transmission.
As shown in Figure 1, in first embodiment of a kind of data transmission system of the present invention, the terminal that is used to transmit data includes start unit 11, selected cell 13, data transmission unit 14 and a plurality of connection and sets up unit 12, and wherein above-mentioned a plurality of connections are set up unit 12 and are respectively applied for and set up dissimilar connections.
In embodiment one, each connection is set up unit 12 and is used to set up one type connection, and for example UDP is direct-connected, TCP is direct-connected, UDP transit server and TCP transit server etc.Each connection is set up unit 12 and is followed type separately respectively and connect the rule of setting up and connect, and for example adopts " three-way handshake " to finish the direct-connected foundation of TCP.
Data transmission unit 14 is used for setting up the company that sets up unit 12 according to connection to be built, and business datum is encoded to follows the packet that respectively connects transmission standard, and the packet after will encoding sends to receiving terminal.
Start unit 11 is used for triggering a plurality of connections and sets up unit 12 and begin to set up a plurality of connections respectively when receiving data transfer instruction.In the present embodiment, start unit 11 comprise one start-up time the memory cell (not shown), be used to store the start-up time of each connection, set up unit 12 thereby start unit 11 can start each connection according to the data-triggered in the start-up time memory cell.For example when connect set up unit 12 include set up that UDP is direct-connected, TCP is direct-connected, when UDP transit server and TCP transit server, its each to connect the start-up time of setting up unit 12 as shown in table 1:
| Title connects | Start-up time (second) |
| UDP is direct-connected | 0 |
| TCP is direct-connected | 0 |
| The UDP transit server | 4 |
| The TCP transit server | 0xFFFFFFF |
Table 1: each connects the time list of setting up the unit
In table 1, be meant that setting up the corresponding connection that connects sets up the time that unit 12 is activated unit 11 triggering startups start-up time.Wherein when receiving data transfer instruction, triggers expression start unit 11 startup start-up time 0 immediately; After waiting for 4 seconds, expression start-up times 4 starts; Start-up time, 0xFFFFFFF represented to start when all other connections are all failed.
Selected cell 13 is used for setting up unit 12 from a plurality of connections and sets up connection of connection selection of finishing, makes the connection transmitting data of data transmission unit 14 in this selection.In the present embodiment, selected cell 13 is according to the characteristics of business datum, selects the connection of suitable these data to carry out transfer of data.When specific implementation, selected cell 13 is at first selected to set up the data of finishing at first and is transmitted, when the connection of finishing when follow-up foundation is more suitable in service data transmission, select the connection of follow-up foundation to replace former connection to carry out transfer of data, and remove the connection of previous transmission data.
As shown in Figure 2, be the detailed structure schematic diagram of selected cell 13 among Fig. 1.Selected cell 13 comprises priority storing sub-units 131 and selects to carry out subelement 132.
Priority memory cell 131 is used to store the priority of each connection.For different business datums, the priority difference of each connection, for example as shown in table 2 for the priority of looking the audio transmission business datum.
| Connection name | Connection priority |
| UDP is direct-connected | 4 |
| TCP is direct-connected | 3 |
| The UDP transit server | 2 |
| The TCP transit server | 1 |
Table 2: the priority list of each connection that selected cell is selected
Select to carry out subelement 132 and be used for from the connection that foundation is finished, selecting to have the connection of limit priority (as the priority in the table 2 4), and remove arbitrary unselected connection according to the priority data of priority memory cell 131.When specific implementation, select to carry out subelement 132 a certain connection set up unit 12 finish connect set up after, judge whether the priority of the connection of setting up is higher than the connection of current transmission data, if then use this newly-established connection transmission data, and remove the connection of current transmission data and stop unfounded and low or more identical connection than the connection priority of this foundation.
Data shown in table 1 and the table 2 only are example, can different start-up times and priority be set according to type of service in concrete the application.Usually can be provided with and restart transit server after direct-connected elder generation starts a period of time, if direct-connected successful connection before transit server connects startup then can stop the transit server connection immediately, reduce the communication pressure of server like this.
As shown in Figure 3, in second embodiment of a kind of data transmission system of the present invention, the terminal that is used to transmit data includes start unit 31, selected cell 33, data transmission unit 34 and a plurality of connection equally and sets up unit 32.Different with first embodiment is also to comprise judging unit 35 in the present embodiment.
Judging unit 35 is used for judging in the business data transmission process whether the performance index of current transmission data are lower than pre-set threshold, and when the performance index of current transmission data are lower than preset threshold value, make start unit 31 trigger the startup connection and set up unit 32, make connection set up unit 32 and rebulid connection.Selected cell 33 is set up unit 32 from connection and is set up and select only connection to replace current connection to carry out transfer of data the connection of finishing.Thereby realized the dynamic adjustment that connects in the communication process, guaranteed communication quality.
In the present embodiment, for same type service data, each priority and start-up time that connects in the transmission start stage, with priority and start-up time of dynamically adjusting each connection when being connected in the communication process can be inequality.
As shown in Figure 4, be the first embodiment schematic diagram of a kind of data transmission method of the present invention.Method in the present embodiment is used to realize the transfer of data of terminal-to-terminal service, and it specifically may further comprise the steps:
Step S41: first terminal (being transmit leg) starts sets up a plurality of dissimilar connections, and these connections are respectively applied for data are sent to second terminal from first terminal.In the present embodiment, first terminal starts and connects receiving business data transmission when instruction, for example sets up session connection or video jukebox software in application programs such as JICQs and clicks and play the video file that is positioned at server etc.
In this step, reach the default boot sequence while or set up a plurality of connections successively according to different traffic data type, for example set up dissimilar connections: comprise in the connection of start setting up that UDP is direct-connected, TCP is direct-connected, when UDP transit server and TCP transit server according to the sequence starting shown in the table 1, UDP is direct-connected, TCP is direct-connected starts simultaneously, the UDP transit server is direct-connected at UDP, start in the scheduled time after the direct-connected startup of TCP, and the TCP transit server is direct-connected at UDP, TCP is direct-connected, the UDP transit server is all failed, and the back starts.
Step S42: of use setting up in a plurality of connections of finishing of first terminal carries out transfer of data, and removes or stop unselected connection.In the present embodiment, first terminal is according to the characteristics of business datum, selects the connection of suitable these data to carry out transfer of data.When specific implementation, first terminal is at first selected to set up at first the data of finishing and is transmitted, when the connection of finishing when follow-up foundation is more suitable in service data transmission, select the connection of follow-up foundation to replace former connection to carry out transfer of data, and remove the connection of previous transmission data.
As shown in Figure 5, be to select among Fig. 4 to connect the detail flowchart that carries out data transmission step S42, it specifically comprises:.
Step S51: when first connection of foundation is at first finished, judge this first priority that connects,, then use this first connection to transmit data and execution in step S52 if this first connection has limit priority; If this first connection does not have limit priority, then execution in step S53;
Step S52: stop to set up all unfounded connections;
Step S53: continue to set up the connection of not finishing that other priority is greater than or equal to current transmission connection that data are used, and execution in step S54;
Step S54: when next connection is finished, judge the priority of this next connection,, then use this connection to carry out transfer of data, remove the connection and the execution in step S52 of current transmission data if this next connection has limit priority; If this next connection does not have limit priority, then execution in step S53.
As shown in Figure 6, be the first embodiment schematic diagram of a kind of data transmission method of the present invention.Method in the present embodiment is used to realize the transfer of data of terminal-to-terminal service, and it specifically may further comprise the steps:
Step S61: whether the transmission rate of judging the current connection that is used to transmit data fault, promptly whether is lower than the set rate threshold value, and when transmission rate is lower than the set rate threshold value execution in step S63; At transmission rate execution in step S62 during more than or equal to the set rate threshold value.
Step S62: in the enterprising line data transmission of current connection.
Step S63: first starting terminal is set up a plurality of dissimilar connections, and these connections are respectively applied for data are sent to second terminal from first terminal.
Step S64: use to set up a current connection in a plurality of connections of finishing, and remove or stop unselected connection as the transmission data.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1, a kind of data transmission system, be used to realize the transfer of data of terminal-to-terminal service, described terminal comprises a plurality of data transmission units that the connection of setting up dissimilar connections is set up the unit and is used for actuating station opposite end transfer of data that are respectively applied for, and it is characterized in that described terminal also includes:
Start unit is used to trigger described a plurality of connection and sets up the unit and begin to set up a plurality of connections respectively;
Selected cell is used for setting up the connection of setting up the unit from described a plurality of connections and selects a connection, for data transmission unit transmission data.
2, a kind of data transmission system according to claim 1 is characterized in that, described selected cell further comprises:
The priority memory cell is used to store the priority of each connection;
Select to carry out subelement, be used for selecting to have the connection of limit priority, and remove all unselected connections according to the connection that the data of described priority memory cell are finished from foundation.
3, a kind of data transmission system according to claim 2, it is characterized in that, described a plurality of dissimilar connection comprises that UDP is direct-connected, TCP is direct-connected, UDP transit server and TCP transit server, and the priority of above-mentioned connection is followed successively by from high to low in the described priority memory cell: UDP is direct-connected, TCP is direct-connected, UDP transit server, TCP transit server.
4, a kind of data transmission system according to claim 1, it is characterized in that, also comprise memory cell start-up time, be used to store the start-up time of each connection, described start unit starts each connection according to the data-triggered in the start-up time memory cell and sets up the unit.
5, a kind of data transmission system according to claim 1 is characterized in that, also comprises judging unit, and whether be used for judgment data transmission unusual, and described start unit is triggered connect and set up the unit and connect.
6, a kind of data transmission method is used to realize it is characterized in that the transfer of data of terminal-to-terminal service, may further comprise the steps:
(a) first starting terminal is set up a plurality of dissimilar connections, and described connection is used for data are sent to second terminal from first terminal;
(b) use one in described a plurality of connections to carry out transfer of data, and stop other connection.
7, a kind of data transmission method according to claim 6, it is characterized in that, (a) further comprises before in described step: judge whether the current transmission rate that is used to transmit the connection of data is lower than the set rate threshold value, and when transmission rate is lower than the set rate threshold value execution in step (a).
According to claim 6 or 7 described a kind of data transmission methods, it is characterized in that 8, described a plurality of dissimilar connections are started to set up or start at interval by first terminal simultaneously sets up.
9, a kind of data transmission method according to claim 8, it is characterized in that, described a plurality of dissimilar connection comprises that UDP is direct-connected, TCP is direct-connected, UDP transit server and TCP transit server, wherein UDP is direct-connected, TCP is direct-connected starts simultaneously, the UDP transit server is direct-connected at UDP, start in the scheduled time after the direct-connected startup of TCP, and the TCP transit server is direct-connected at UDP, TCP is direct-connected, the UDP transit server is all failed, and the back starts.
According to claim 6 or 7 described a kind of data transmission methods, it is characterized in that 10, described a plurality of dissimilar connections have different priority, described step (b) further comprises:
(b1) when first connection is finished, judge described first priority that connects,, then use described first connection to transmit data and execution in step (b2) if described first connection has first priority; If described first connection does not have first priority, then execution in step (b3);
(b2) stop to set up other connection;
(b3) continue to set up other connection, and execution in step (b4);
(b4) when next connection is finished, judge the priority of described next connection,, then use this connection to carry out transfer of data if described next connection has first priority, and execution in step (b2), if described next connection does not have the first priority execution in step (b3).
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| CN 200710073345 CN101079840A (en) | 2007-02-12 | 2007-02-12 | A data transmission system and method |
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|---|---|---|---|
| CN 200710073345 CN101079840A (en) | 2007-02-12 | 2007-02-12 | A data transmission system and method |
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| CN101841895A (en) * | 2010-03-11 | 2010-09-22 | 华为终端有限公司 | Method and device for carrying out data transmission on terminal services |
| CN102802048A (en) * | 2012-08-24 | 2012-11-28 | 乐视网信息技术（北京）股份有限公司 | Multi-screen interaction system and method |
| CN103546917A (en) * | 2013-11-07 | 2014-01-29 | 华为技术有限公司 | Data transmission method and device |
| CN103763332A (en) * | 2014-02-19 | 2014-04-30 | 广东天波信息技术股份有限公司 | Media flow forwarding mode dynamic switching method and system |
| CN104519022A (en) * | 2013-09-29 | 2015-04-15 | 北京新媒传信科技有限公司 | Method and device for establishing connecting channel |
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| CN101841895B (en) * | 2010-03-11 | 2013-02-13 | 华为终端有限公司 | Method and device for carrying out data transmission on terminal services |
| CN101841895A (en) * | 2010-03-11 | 2010-09-22 | 华为终端有限公司 | Method and device for carrying out data transmission on terminal services |
| CN102802048A (en) * | 2012-08-24 | 2012-11-28 | 乐视网信息技术（北京）股份有限公司 | Multi-screen interaction system and method |
| CN102802048B (en) * | 2012-08-24 | 2015-08-05 | 乐视致新电子科技（天津）有限公司 | A kind of Multi-screen interaction system and method |
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| CN107454178B (en) * | 2017-08-15 | 2020-07-31 | 竞技世界（北京）网络技术有限公司 | Data transmission method and device |
| CN109017757A (en) * | 2018-08-22 | 2018-12-18 | 吉林大学 | In vehicle remote generation, drives method and system |
| CN110198304A (en) * | 2019-04-30 | 2019-09-03 | 视联动力信息技术股份有限公司 | A kind of method and apparatus of controlling terminal |
| CN110581847A (en) * | 2019-08-26 | 2019-12-17 | 杭州城市大数据运营有限公司 | Input foreknowledge system |
| CN113301000A (en) * | 2020-02-24 | 2021-08-24 | 贵州白山云科技股份有限公司 | Data transmission method, device, medium and equipment |
| CN113301000B (en) * | 2020-02-24 | 2023-04-18 | 贵州白山云科技股份有限公司 | Data transmission method, device, medium and equipment |
| CN114615349A (en) * | 2022-02-11 | 2022-06-10 | 深圳市新田科技有限公司 | Cloud VR interaction control data transmission method and device, intelligent terminal and storage medium |
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