CN1901509B - Synchronizing method of synchronous data between network nodes - Google Patents
Synchronizing method of synchronous data between network nodes Download PDFInfo
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- CN1901509B CN1901509B CN2006101036383A CN200610103638A CN1901509B CN 1901509 B CN1901509 B CN 1901509B CN 2006101036383 A CN2006101036383 A CN 2006101036383A CN 200610103638 A CN200610103638 A CN 200610103638A CN 1901509 B CN1901509 B CN 1901509B
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Abstract
This invention discloses a synchronization method of synchronous data among network nodes, which inserts new synchronous data into the data flow transmitting data after getting new synchronous data to reduce the time of synchronous delay and further increase the transmission efficiency of data.
Description
Technical field
The present invention relates to a kind of transfer approach of synchronous data between network nodes.
Background technology
During transfer of data between network node, often need each node to have that identical parameter is auxiliary finishes described data transfer, for example coding or encrypt decoding or deciphering etc.Described parameter is exactly synchronization parameter.These synchronization parameters of each node must identical guarantee transfer of data correct.In the reality, these synchronization parameters may change, and therefore need to realize the transmission operation of synchrodata between each node, when especially these synchronization parameters change in data transmission procedure, more need in time to finish the operation of synchrodata segment sync.
Fig. 1 is the structured flowchart of a concrete data transmission system.Among Fig. 1, comprise network 13 and by the interconnected a plurality of terminals 11 of network 13, and also comprise the data transmission device 12,14 that is arranged between described network 13 and the described terminal 11.In this data transmission system, terminal 11 is directly interconnected by network 13 no longer in the conventional mode, but has increased data transmission device 12,14 in the centre.In fact, perhaps directly be connected between terminal 11 and the data transmission device 12,14, perhaps by other network, for example local area network (LAN) connects, and also is like this between data transmission device 12 and the network 13.Among Fig. 1, each data transmission device 12 is all connecting and its relative close terminal 11 in logic or physically, that is to say that terminal 11 need to be passed through data transmission device 12 by network 13 to the data that another terminal 11 sends.And the effect of data transmission device 12 is the data that will transmit are encoded to reduce data volume by network 13 actual transmissions, thereby reach the effect that transfer of data is accelerated, and the data transmission device 12 of receiving terminal correspondingly will be to the decoding data that receives.For this reason, a database that is used for Code And Decode is arranged in each data transmission device 12, be used for memory encoding and decoding parametric, and the content of the database in the different pieces of information transmitting device 12 is identical, otherwise just can't realizes normal Code And Decode.
For realize in each network node data in the database synchronously, in the described system of Fig. 1, also comprise at least one synchronization server 15, be used for the memory contents of synchronous described data transmission device 12,14 database.Synchronous method can have a lot, for example, when the content of the database in any one data transmission device 12 or 14 for example changes owing to study, can be with the content delivery that changes to synchronization server 15, then idle at network or utilize special-purpose channel to be put in order by described synchronization server after the complete synchronous content again to other data transmission device to send the data division that changes and concrete instruction, indicate the content of the corresponding database of corresponding data transmission device adjustment.All right, the data transmission device that database changes sends the database section of broadcast and variation to other data transmission device in the network, point out the database of other (refering in particular to the data transmission device of corresponding receiving terminal) data transmission device to upgrade accordingly, the operations such as the content of broadcasting and safety certification can not finished by synchronization server 15 (for example data transmission device does not carry out the time of transfer of data) when network is idle yet.
Owing to will just can carry out the simultaneous operation of data afterwards in that transfer of data is complete, simultaneous operation and transfer of data are separated, caused larger data synchronizing relay.
Summary of the invention
The technical problem to be solved in the present invention is, the method for synchronous of the less synchronous data between network nodes of a kind of transmission delay is provided.
Specifically, the method for synchronous of synchronous data between network nodes provided by the invention comprises step:
Obtain new synchrodata;
Described new synchrodata is inserted in the data flow that is sending sends:
Described synchrodata is coding or encryption parameter, perhaps, is decoding or deciphering parameter.
Wherein:
The afterbody that described new synchrodata is inserted into the data flow that is sending sends.
Perhaps, described new synchrodata is inserted into the current location transmission of the data flow that is sending.
Perhaps, the front that described new synchrodata is inserted in the data flow that is sending the data division that uses described new synchrodata sends.
In the reality, can will be inserted in the current data stream after the synchrodata packing, for example utilize the data in the described data flow of transmission control protocol or Internet protocol (TCP/IP) packing.
Further, be inserted in the current data stream after can the data compression with packing or in the data flow to be sent, and being packaged as described new synchrodata independently, packet be inserted in the data flow.
The method for synchronous of another kind of synchronous data between network nodes provided by the invention comprises:
Obtain new synchrodata;
Described new synchrodata is inserted in the data flow recently to be sent sends:
Described synchrodata is coding or encryption parameter, perhaps, is decoding or deciphering parameter.
Wherein: the afterbody that described new synchrodata is inserted into the data flow that is sending, perhaps described new synchrodata is inserted into the current location of the data flow that is sending, the front that perhaps described new synchrodata is inserted in the data flow that is sending the data division that uses described new synchrodata sends.
Being packaged as described new synchrodata independently, packet is inserted in the data flow.
The present invention adopt with the data of new synchrodata and data flow alternately send simultaneously scheme, simultaneous operation and transfer of data are merged mutually, thereby in time transmit synchrodata, therefore can reduce the time of synchronizing relay, can further improve the efficient of transfer of data.Further, the packing of described synchrodata and compression can also be improved the efficiency of transmission of synchrodata.
Description of drawings
Fig. 1 is the structured flowchart of a data transmission system;
Fig. 2 is one embodiment of the present of invention flow charts;
Fig. 3 is the data transmission device block diagram that system shown in Figure 1 adopts;
Fig. 4 (1), Fig. 4 (2) are the schematic illustrations of data packet stream.
Embodiment
Below: by reference to the accompanying drawings specific embodiments of the present utility model is further specified.With reference to figure 2, example shown in Figure 2 comprises three steps, at first, has produced new synchrodata (step 21) in data handling procedure, then obtain new synchrodata in step 22, in step 23 described new synchrodata being packed to be inserted in the data flow that is sending sends.Further, be inserted in the described data flow after described new packet adopted the compression of any compression method, perhaps send behind the data stream compression with the data inserting bag.
In different embodiment, the afterbody that new synchrodata can be inserted into the data flow that is sending sends, the current location that also described new synchrodata can be inserted into the data flow that is sending sends, and perhaps described new synchrodata is inserted into the front transmission of the data division that uses described new synchrodata in the data flow that is sending.In the present embodiment, utilize pack data in the described data flow of transmission control protocol or Internet protocol.
In system shown in Figure 1, described data transmission device 12,14 all has similar structure shown in Figure 3.This is a specific embodiment block diagram of data transmission device.The described device of Fig. 3 comprises the first label integrated unit 31, the first database 32, data segment cutting unit 33, data encoding unit 34, data transmission unit 35.The first label integrated unit 31 is used for obtaining the data segment that the first data characteristic of satisfying the market demand field requires, and is that described data segment distributes the corresponding label of quoting, and will describedly quote and deposit the first database 32 in after label and described data segment are bound.The data flow of input with data segment cutting unit 33, from an end of data flow, according to certain principle, intercepts out one or more data segments.If these data segments are identical with the data segment of storage in the first database 32, just can utilize the coding transmission of finishing data with the label of this data segment binding.So, usage data coding unit 34, the Data Segmentation result of data segment cutting unit 33 is inputed to described data encoding unit 34, described data encoding unit 34 is in described the first database 32, search the applying label corresponding to data segment of data segment cutting unit output, lookup result is admitted to data transmission unit 35, quotes the data segment that label replaces the intercepting of data segment cutting unit by it with described, with remaining data assembling in the data flow be that new data flow sends.Yet, the data segment that data segment cutting unit 33 takes out may not exist at the first database 32, and this data segment may have higher recurrence probability, therefore, after the data segment that the first judging unit 76 judgement data segment cutting units 73 are partitioned into has higher recurrence probability, just will each not appear in described the first database 72 and satisfy certain data characteristic requirement like this, the data segment of high recurrence probability for example, all to quote label for described data segment arranges it, and with its binding after be stored in described the first database 72, certainly also to calculate its corresponding hashed value to be stored into corresponding record.Thus, just formed new synchrodata in the first database 72, these new synchrodatas just need to be synchronized in other the data transmission device.
According to the present invention, preferably described new synchrodata being packaged as independently, packet is inserted in the data flow data formation data packet stream.Although can by the data mixing packing of the special marking parameters such as sign and length with new synchrodata and data flow, can increase like this data volume of transmission or consume too much decode time or the complexity of increase data decode.At this moment, the data that data transmission unit 35 is sent namely comprise quotes label or group label, also comprises new synchrodata.Fig. 4 is the schematic illustrations to data transmitting element 35 data packet streams, and among Fig. 4 (1), the packet 42 of synchrodata is at the middle part of data packet stream 41, and among Fig. 4 (2), 42 afterbodys at data packet stream 41 of the packet of synchrodata.
The method for synchronous of another kind of synchronous data between network nodes provided by the invention comprises:
Obtain new synchrodata;
Described new synchrodata is inserted in the data flow recently to be sent sends.
Wherein, described recently data flow to be sent refers to not affect the data flow that described synchrodata is used.For example, data flow A, B, C are arranged in the buffering area, current data stream is data flow X, and the data flow of the synchrodata that produces in data flow X processing procedure behind data flow C used, and therefore, data flow to be sent is data flow A, B recently.
Wherein: the afterbody that described new synchrodata is inserted into the data flow that is sending, perhaps described new synchrodata is inserted into the current location of the data flow that is sending, the front that perhaps described new synchrodata is inserted in the data flow that is sending the data division that uses described new synchrodata sends.
Being packaged as described new synchrodata independently, packet is inserted in the data flow.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. the method for synchronous of a synchronous data between network nodes is characterized in that comprising:
Obtain new synchrodata;
Described new synchrodata is inserted in the data flow that is sending sends:
Described synchrodata is coding or encryption parameter, perhaps, is decoding or deciphering parameter.
2. method for synchronous as claimed in claim 1 is characterized in that: described new synchrodata is inserted into the afterbody transmission of the data flow that is sending.
3. method for synchronous as claimed in claim 1 is characterized in that: described new synchrodata is inserted into the current location transmission of the data flow that is sending.
4. method for synchronous as claimed in claim 1 is characterized in that: the front that described new synchrodata is inserted into the data division that uses described new synchrodata in the data flow that is sending sends.
5. such as claim 1,2,3 or 4 described method for synchronous, it is characterized in that: utilize pack data in the described data flow of transmission control protocol or Internet protocol.
6. method for synchronous as claimed in claim 1, it is characterized in that: being packaged as described new synchrodata independently, packet is inserted in the data flow.
7. method for synchronous as claimed in claim 6 is characterized in that: compress described synchronization packets or comprise the data flow of described synchrodata.
8. the method for synchronous of a synchronous data between network nodes is characterized in that comprising:
Obtain new synchrodata;
Described new synchrodata is inserted in the data flow recently to be sent sends:
Described synchrodata is coding or encryption parameter, perhaps, is decoding or deciphering parameter.
9. method for synchronous as claimed in claim 8, it is characterized in that: the afterbody that described new synchrodata is inserted into the data flow that is sending, perhaps described new synchrodata is inserted into the current location of the data flow that is sending, the front that perhaps described new synchrodata is inserted in the data flow that is sending the data division that uses described new synchrodata sends.
10. method for synchronous as claimed in claim 8 or 9, it is characterized in that: being packaged as described new synchrodata independently, packet is inserted in the data flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101036383A CN1901509B (en) | 2006-07-26 | 2006-07-26 | Synchronizing method of synchronous data between network nodes |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101036383A CN1901509B (en) | 2006-07-26 | 2006-07-26 | Synchronizing method of synchronous data between network nodes |
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| CN1901509A CN1901509A (en) | 2007-01-24 |
| CN1901509B true CN1901509B (en) | 2013-05-29 |
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| CN2006101036383A Expired - Fee Related CN1901509B (en) | 2006-07-26 | 2006-07-26 | Synchronizing method of synchronous data between network nodes |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| FR3007143B1 (en) * | 2013-06-17 | 2015-07-17 | Schneider Electric Ind Sas | SYSTEM FOR CALCULATING AN ELECTRICAL SIZE, TRANSFORMATION STATION COMPRISING SUCH A SYSTEM AND METHOD OF CALCULATING AN ELECTRICAL SIZE WITH SUCH A SYSTEM |
| JP7078633B2 (en) | 2017-03-08 | 2022-05-31 | ヒタチ・エナジー・スウィツァーランド・アクチェンゲゼルシャフト | Methods and devices for maintaining the relative timing and order of data packets in a network |
| CN107148057B (en) * | 2017-06-23 | 2021-01-19 | 哈尔滨海能达科技有限公司 | Link information processing method and system and link machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1133109A (en) * | 1993-10-12 | 1996-10-09 | 艾利森电话股份有限公司 | Synchronizing circuit arrangement |
| CN1489841A (en) * | 2000-05-18 | 2004-04-14 | �������繫˾ | Synchronization of asynchronous networks using media access control (MAC) layer |
-
2006
- 2006-07-26 CN CN2006101036383A patent/CN1901509B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1133109A (en) * | 1993-10-12 | 1996-10-09 | 艾利森电话股份有限公司 | Synchronizing circuit arrangement |
| CN1489841A (en) * | 2000-05-18 | 2004-04-14 | �������繫˾ | Synchronization of asynchronous networks using media access control (MAC) layer |
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| CN1901509A (en) | 2007-01-24 |
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