CN107707640A - A kind of Point-to-Point Data Transmission method and apparatus - Google Patents
A kind of Point-to-Point Data Transmission method and apparatus Download PDFInfo
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- CN107707640A CN107707640A CN201710874796.7A CN201710874796A CN107707640A CN 107707640 A CN107707640 A CN 107707640A CN 201710874796 A CN201710874796 A CN 201710874796A CN 107707640 A CN107707640 A CN 107707640A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
Abstract
The present invention relates to include including a kind of Point-to-Point Data Transmission method and apparatus, its method：Sending node is established to the connecting link of receiving node；When monitoring data to be transmitted bag to be present in task stack team, data to be transmitted bag is split according to default segmentation rule, obtains multiple data blocks；Unique label is set to multiple data blocks, the order that multiple data blocks are split according to data block is numbered；Statistics block number information, amount of capacity information and its label information are generated into message；To send there is provided each data block and message of numbering in the lump into receiving node.The present invention by transmitting again by data to be transmitted bag piecemeal, according to along setting label, effectively raise data transmission efficiency, by data to be transmitted bag piecemeal and the processing mode of numbering, receiving terminal can be easy to quickly to integrate each data block, and when some or multiple transmission of data blocks fail, data block can be retransmitted according to label information, without again retransmitting total data.
Description
Technical field
The present invention relates to technical field of data transmission, more particularly to a kind of Point-to-Point Data Transmission method and apparatus.
Background technology
Under current information society high speed development, as data message constantly increases severely, for the transmission requirement of big data
Also more and more higher, the data integrity and efficiency of transmission that current technology means are transmitted for big data can't be satisfactory,
Especially when there are some loss of datas, search get up it is fairly cumbersome, total data need to be passed once again again, take compared with
More resources, cause time waste and the raising of financial cost.How data transmission efficiency and quick solution transmission data are improved
Loss situation, it is current people's urgent problem to be solved.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of Point-to-Point Data Transmission method and apparatus.
In a first aspect, the embodiments of the invention provide a kind of Point-to-Point Data Transmission method, comprise the following steps：
Sending node is established to the connecting link of receiving node；
When monitoring data to be transmitted bag to be present in task stack team, the data to be transmitted bag is obtained；
The sending node is split the data to be transmitted bag according to default segmentation rule, obtains multiple data
Block；
Unique label is set to the multiple data block, the label includes data block classification information, will be described more
The order that individual data block is split according to data block is numbered, by the label of data block corresponding to the numbering write-in；
The number of sending node statistics label and the data volume size of each data block, and by the number information of statistics,
Data volume size information and its corresponding data block label information generation message；
To send there is provided each data block of numbering and the message to the receiving node.
The present invention by by data to be transmitted bag piecemeal, according to along setting label and numbering, then be transmitted, effectively carry
High data transmission efficiency, by data to be transmitted bag piecemeal and the processing mode of numbering, can be easy to receiving terminal quickly by each number
Integrate according to block, and when some or multiple transmission of data blocks fail, can be retransmitted data block according to label information, and
Total data need not be retransmitted again, because data to be transmitted is coated with block transmission, its occupancy is small will not also to take excessive money
Source, so as to save time cost and financial cost.
Further, described will be sent in the lump to described receive there is provided each data block of numbering and the message is saved
In point, concretely comprise the following steps：First send the message and send each data block successively further according to number order to the receiving node
In.
Above-mentioned further technical scheme, receiving node is set to be preferentially received message, and sequentially receiving node is easy in transmission
Each data block is reintegrated.
Second aspect, present invention also offers a kind of Point-to-Point Data Transmission device, including：
Link connection module, for establishing sending node to the connecting link of receiving node；
Monitoring modular, for when monitoring data to be transmitted bag to be present in task stack team, obtaining the data to be transmitted
Bag, and send into sending node；
The sending node, for being split the data to be transmitted bag according to default segmentation rule, obtain multiple
Data block；
And unique label is set to the multiple data block, the label includes data block classification information, by described in
The order that multiple data blocks are split according to data block is numbered, by the label of data block corresponding to the numbering write-in；
And the number of label and the data volume size of each data block are counted, and by the number information of statistics, data volume size
Information and its corresponding data block label information generation message；
To send there is provided each data block of numbering and the message to the receiving node.
The present invention by by data to be transmitted bag piecemeal, according to along setting label and numbering, then be transmitted, effectively carry
High data transmission efficiency, by data to be transmitted bag piecemeal and the processing mode of numbering, can be easy to receiving terminal quickly by each number
Integrate according to block, and when some or multiple transmission of data blocks fail, can be retransmitted data block according to label information, and
Total data need not be retransmitted again, because data to be transmitted is coated with block transmission, its occupancy is small will not also to take excessive money
Source, so as to save time cost and financial cost.
Further, the sending node is specifically used for, and the message is first sent further according to volume according to the transmission instruction
Number order sends each data block into the receiving node successively.
Above-mentioned further technical scheme, receiving node is set to be preferentially received message, and sequentially receiving node is easy in transmission
Each data block is reintegrated.
Brief description of the drawings
Fig. 1 is the method flow diagram for the Point-to-Point Data Transmission method that one embodiment of the invention provides；
Fig. 2 is the method flow diagram for the Point-to-Point Data Transmission method that one embodiment of the invention provides；
Fig. 3 is the method flow diagram for the Retransmission timeout mechanism that another embodiment of the present invention provides；
Fig. 4 is the method flow diagram for the Retransmission timeout mechanism that another embodiment of the present invention provides；
Fig. 5 is the module frame chart for the Point-to-Point Data Transmission device that one embodiment of the invention provides.
In accompanying drawing, the list of parts representated by each label is as follows：
01st, sending node, 02, receiving node.
Embodiment
In describing below, in order to illustrate rather than in order to limit, it is proposed that such as particular system structure, interface, technology it
The detail of class, understand the present invention to cut thoroughly.However, it will be clear to one skilled in the art that there is no these specific
The present invention can also be realized in the other embodiments of details.In other situations, omit to well-known system, circuit with
And the detailed description of method, in case unnecessary details hinders description of the invention.
Fig. 1 is the method flow diagram for the Point-to-Point Data Transmission method that one embodiment of the invention provides；
As shown in figure 1, the embodiments of the invention provide a kind of Point-to-Point Data Transmission method, comprise the following steps：
Step S01：Sending node is established to the connecting link of receiving node；
Step S02：When monitoring data to be transmitted bag to be present in task stack team, the data to be transmitted bag is obtained；
Step S03：The sending node is split the data to be transmitted bag according to default segmentation rule, is obtained
Multiple data blocks；
Step S04：Unique label is set to the multiple data block, the label includes data block classification information,
The order that the multiple data block is split according to data block is numbered, by the mark of data block corresponding to the numbering write-in
In label；
In this step, numbering is set for each data block, so that receiving node is received after each data block according to the volume
Number reintegrated；
Step S05：The number and each data block amount of capacity of sending node statistics label, and by the number of statistics
Information, amount of capacity information and its corresponding data block label information generation message；
Step S06：To send there is provided each data block of numbering and the message to the receiving node.
In above-described embodiment, by setting label and numbering by data to be transmitted bag piecemeal, according to suitable, then it is transmitted, has
Effect improves data transmission efficiency, by data to be transmitted bag piecemeal and the processing mode of numbering, receiving terminal can be easy to quick
Each data block is integrated, and when some or multiple transmission of data blocks fail, data block can be subjected to weight according to label information
Pass, without again retransmitting total data, because data to be transmitted is coated with block transmission, its occupancy is small will not also to be taken
More resource, so as to save time cost and financial cost.
It is described to send there is provided each data block of numbering and the message to described specifically, in above-described embodiment
Receiving node, concretely comprise the following steps：First send the message and send each data block successively further according to number order to the reception
In node.
Receiving node can be made to be preferentially received message, and sequentially transmission is easy to receiving node to carry out each data block
Reintegrate.
Fig. 2 is the method flow diagram for the Point-to-Point Data Transmission method that one embodiment of the invention provides；
Preferential, the present embodiment is improved on the basis of Fig. 1, as shown in Fig. 2
Step S011：Sending node is established to the connecting link of receiving node；
Step S012：When monitoring data to be transmitted bag to be present in task stack team, the data to be transmitted bag is obtained；
Step S013：The sending node is split the data to be transmitted bag according to default segmentation rule, is obtained
Multiple data blocks；
Step S014：Unique label is set to the multiple data block, and the label includes data block classification letter
Breath, and the order that the multiple data block is split according to data block is numbered, by data block corresponding to the numbering write-in
Label in；
Step S015：Unified safety code is set to each data block, and the safety code is used to judge whether for receiving node
Receive data block；
Specifically, the specific method of safety code is set in above-described embodiment to be：
The numeric string or English words letter string that safety code can be randomly generated, can also be set, such as safety code bag
The data block number and date of shipping of this transmission are included, i.e. 20170810-25,20170810 represent date of shipping, and 25 represent this
The secondary number for sending data block；
In this step, the safety code of setting, the security of data transfer is improved, when receiving node receives data block, really
Determine whether data block includes the safety code, if including receiving, otherwise not receiving；
Step S016：The number of sending node statistics label and the data volume size of each data block, and by statistics
Number information, data volume size information and its corresponding data block label information and safety code generation message；
Step S017：To send there is provided each data block of safety code and the message to the receiving node.
In above-described embodiment, by setting the form of safety code for each data block, prevent viral data from transmitting in the lump to connecing
Node is received, improves the security of data transfer.
Preferably, the present embodiment is improved on the basis of Fig. 1, and the sending node will according to default segmentation rule
The data to be transmitted bag is split, and obtains multiple data blocks and specifically includes：
The capacity such as data to be transmitted bag are split, obtain the equal-sized data block of multiple data volumes；
Or
By data to be transmitted bag random division, multiple unequal data blocks of data volume size are obtained.
In above-described embodiment, if selecting that, by data to be transmitted bag random division, step can also be included, data are set
Threshold value is measured, the data volume size for the data block that random division is obtained is compared with the data-quantity threshold, if random divide
The data volume for the data block for cutting to obtain then carries out random division again more than or equal to the data-quantity threshold, until obtaining small
In the data block of the data-quantity threshold.
In above-described embodiment, the transmission packet for the treatment of that can relatively rationalize is split, and is partitioned into data volume size and fits
When data block, be easy to transmit.
Fig. 3 is the method flow diagram for the Retransmission timeout mechanism that another embodiment of the present invention provides；
Preferably, the present embodiment is improved on the basis of Fig. 1, it is described by there is provided each data block of numbering and
The message is sent to the receiving node, in addition to step：Each data block is judged according to the Retransmission timeout mechanism of setting
Whether transmission is successful；
As shown in figure 3, the Retransmission timeout mechanism includes：
Step A01：It is provided for judging the preset data transmission difference duration t whether the transmission duration of data block is overtime；
Step A02：Obtain duration W used in data volume size, transmission rate and the actual transmissions of each data blockn；
In this step, duration W used in actual transmissionsnAcquisition, time that data BOB(beginning of block) is sent and the data can be passed through
The difference for the time that block end is sent, that is, obtain duration W used in actual transmissionsn；
Step A03：Determine that each data block is sent to reception according to the data volume size and transmission rate of each data block
The estimated duration T of noden；
In this step, it is contemplated that duration TnUtopian transmission duration is referred to, it is certain in transmission rate, and not middle stealpass
In the case of defeated, the transmission duration that calculates, for judging the deviation of transmission of data blocks duration；
Step A04：Calculate duration W used in the actual transmissions of current data blocknWith estimated duration TnAbsolute difference, obtain
To actual transmissions difference duration a；
In this step, for example, duration W used in actual transmissionsnFor 45min, it is contemplated that duration TnFor 20min, calculate | Wn-Tn|
Actual transmissions difference duration a is obtained, | a |=25min；
Step A05：Judge whether the actual transmissions difference duration a of current data block is more than or equal to the data transfer
Difference duration t, if it is, judging that current data block is transmitted as time-out, and step A06 is performed, otherwise perform step A07；
In this step, if data transfer difference duration t is 20min, actual transmissions difference duration a is 25min, is compared
Compared with then actual transmissions difference duration a is more than data transfer difference duration t, then the data block has timeout case；
Step A06：By in the label information writing data blocks time-out report of current data block；
Step A07：When completion all data blocks time-out judges, data block time-out report is sent extremely to receive and saved
Point.
The step A07 is specifically included, and is made whether to complete the judgement of all data block timeout cases, if it is, will
The data block time-out report is sent to receiving node, so that the receiving node is according in data block time-out report
Label information is confirmed whether to receive the data, otherwise continues to judge subsequent data chunk, returns and performs step A04.
In above-described embodiment, sending node passes through the data volume size of each data block, transmission rate and actual transmissions institute
With duration, to calculate the estimated duration of transmission of data blocks, obtain actual transmissions difference duration, then with default poor data transmission
Value duration is compared, and can actively find out which data block there is a situation where to send time-out, and is reported to receiving node,
Data block time-out report is sent, receiving node determines whether data block receives success according to the report of data block time-out, therefore
Improve the success rate of data receiver.
Fig. 4 is the method flow diagram for the Retransmission timeout mechanism that another embodiment of the present invention provides；
Preferably, the present embodiment is improved on the basis of Fig. 3, as shown in figure 4, the Retransmission timeout mechanism includes：
Step A01：It is provided for judging the preset data transmission difference duration t whether the transmission duration of data block is overtime；
Step A02：Obtain duration W used in data volume size, transmission rate and the actual transmissions of each data blockn；
Step A03：Determine that each data block is sent to reception according to the data volume size and transmission rate of each data block
The estimated duration T of noden；
Step A04：Calculate duration W used in the actual transmissions of current data blocknWith estimated duration TnAbsolute difference, obtain
To actual transmissions difference duration a；In this step, for example, duration W used in actual transmissionsnFor 45min, it is contemplated that duration TnFor
20min, calculate | Wn-Tn| actual transmissions difference duration a is obtained, | a |=25 min；
Step A05：Judge whether the actual transmissions difference duration a of current data block is more than or equal to the data transfer
Difference duration t, if it is, judging that current data block is transmitted as time-out, and step A06 is performed, otherwise perform step A07；Example
Such as, if data transfer difference duration t is 20min, actual transmissions difference duration a is 25min, is compared, then actual transmissions are poor
Value duration a is more than data transfer difference duration t, then the data block has timeout case；
Step A06：By in the label information writing data blocks time-out report of current data block；
Step A07：Whether complete the judgement of all data block timeout cases, if it is, perform step A08, otherwise after
It is continuous that subsequent data chunk is judged, return and perform step A04；
Step A08：Data block time-out report is sent to receiving node, so that the receiving node is according to
Label information in data block time-out report is confirmed whether to receive the data block；
Sending node is by duration used in the data volume size, transmission rate and actual transmissions of each data block, to calculate
Taking for transmission of data blocks, obtains actual transmissions difference duration, then compared with default data transfer difference duration, energy
Enough which data blocks that actively finds out there is a situation where to send time-out, and be reported to receiving node, that is, send data block time-out report
Accuse；
Also include, receiving node determines whether data block receives successful step according to the report of data block time-out：
Step A09：The data block time-out for receiving the receiving node feedback determines report, and the data block time-out determines
Report includes the data block label information of each reception failure, and searches whether weight be present from the data block label information
Acknowledgement indicator is sent out, if there is corresponding to the then numbering lookup in the repeating transmission acknowledgement indicator and data block label information
Data block, by the data block retransmissions found into the receiving node, wherein, the repeating transmission acknowledgement indicator is by described
Receiving node is written into the data block label information for the data block that need to be retransmitted.
Specifically, when the receiving node receives the data block time-out report of sending node transmission, institute is confirmed one by one
Whether each data block stated in data block time-out report receives success, in the data block of the data block if not receiving successfully
Write-in, which is retransmitted, in label information confirms mark, and generates data block time-out and determine that report is sent into sending node, the transmission
Node is connected to the data block time-out and determined after reporting, repeating transmission is searched from data block label information and confirms mark, according to repeating transmission
Confirm that mark determines to be retransmitted corresponding data block；
The repeating transmission acknowledgement indicator can be written form, such as " it is determined that repeating transmission ", will be corresponding to " it is determined that repeating transmission " write
In data block label information, then when sending node receives data block time-out determination report, report is determined from data block time-out
Read block label information in announcement, and from the mark of data block label information lookup " it is determined that repeating transmission ", and according to " it is determined that weight
Corresponding data block is re-transmitted in receiving node by hair "；Or the repeating transmission acknowledgement indicator can also be numeral or word
Female form, such as " 1 ", " 2 ", " A ", " B ", agreement 1 represent to need to retransmit, and 2 represent to retransmit, and agreement A represents to need
Retransmit, B represents to retransmit；Or the acknowledgement indicator of retransmitting can also be digital or letter form, such as
" △ ", "○", agreement △ represent to need to retransmit, and zero represents to retransmit.
In the above-mentioned embodiment for data block retransmissions, sending node can be by transmitting terminal active detecting with the presence or absence of number
The possibility of failure is sent according to block time-out, and data block time-out report is sent into receiving node, and is determined by receiving node
Data block sends success or not, and receiving node is searched corresponding according to the data block label information recorded in data block time-out report
Data block whether be properly received, if be not successfully received, by retransmit acknowledgement indicator write in the data block label information,
Data block time-out report is fed back into sending node again, sending node retransmits the hair again according to corresponding to retransmitting acknowledgement indicator
The data block of failure is sent, there is the quick data block searched and send failure, improve efficiency of transmission.
Fig. 5 is the module frame chart for the Point-to-Point Data Transmission device that one embodiment of the invention provides；
As shown in figure 5, a kind of Point-to-Point Data Transmission device, including：
Link connection module, for establishing sending node 01 to the connecting link of receiving node 02；
Monitoring modular, for when monitoring data to be transmitted bag to be present in task stack team, obtaining the data to be transmitted
Bag, and send into sending node 01；
The sending node 02, for being split the data to be transmitted bag according to default segmentation rule, obtain more
Individual data block；
And unique label is set to the multiple data block, the label includes data block classification information, by described in
The order that multiple data blocks are split according to data block is numbered, by the label of data block corresponding to the numbering write-in；
And the number of label and the data volume size of each data block are counted, and by the number information of statistics, data volume size
Information and its corresponding data block label information generation message；
To send there is provided each data block of numbering and the message to the receiving node 02.
The present invention by by data to be transmitted bag piecemeal, according to along setting label and numbering, then be transmitted, effectively carry
High data transmission efficiency, by data to be transmitted bag piecemeal and the processing mode of numbering, can be easy to receiving terminal quickly by each number
Integrate according to block, and when some or multiple transmission of data blocks fail, can be retransmitted data block according to label information, and
Total data need not be retransmitted again, because data to be transmitted is coated with block transmission, its occupancy is small will not also to take excessive money
Source, so as to save time cost and financial cost.
Preferably, the sending node is specifically used for, and the message is first sent further according to numbering according to the transmission instruction
Order sends each data block into the receiving node successively.
Receiving node can be made to be preferentially received message, and sequentially transmission is easy to receiving node to carry out each data block
Reintegrate.
Preferably, the present embodiment is improved to sending node, and the sending node is also particularly useful for each data block
Unified safety code is set, and the safety code is used to judge whether to receive data block for receiving node, so that receiving node receives
During data block, determine whether data block includes the safety code, if including receiving, otherwise not receiving.
Specifically, described safety code specific method is：The numeric string or English that safety code can be randomly generated
Alphabetic string, it can also be set, such as safety code includes data block number and date of shipping, i.e. 20170810-25,
20170810 represent date of shipping, and 25 represent this number for sending data block.
In above-described embodiment, by setting the form of safety code for each data block, prevent viral data from transmitting in the lump to connecing
Node is received, improves the security of data transfer.
Preferably, the present embodiment is improved to sending node, and the default segmentation rule in the sending node includes：
The capacity such as data to be transmitted bag are split, obtain the equal-sized data block of multiple data volumes；
Or
By data to be transmitted bag random division, multiple unequal data blocks of data volume size are obtained.
In above-described embodiment, if selecting that, by data to be transmitted bag random division, step can also be included, data are set
Threshold value is measured, the data volume size for the data block that random division is obtained is compared with the data-quantity threshold, if random divide
The data volume for the data block for cutting to obtain then carries out random division again more than or equal to the data-quantity threshold, until obtaining small
In the data block of the data-quantity threshold.
In above-described embodiment, the transmission packet for the treatment of that can relatively rationalize is split, and is partitioned into data volume size and fits
When data block, be easy to transmit.
Preferably, in addition to retransmission module, the retransmission module be used for when by each data block send to receiving node it
Afterwards, judge whether each data block sends success according to the Retransmission timeout mechanism of setting；
The Retransmission timeout mechanism includes：
It is provided for judging the preset data transmission difference duration t whether the transmission duration of data block is overtime；
And obtain duration W used in data volume size, transmission rate and the actual transmissions of each data blockn；
It is pre- to receiving node to determine that each data block is sent according to the data volume size and transmission rate of each data block
The long T of timingn；
Calculate duration W used in the actual transmissions of current data blocknWith estimated duration TnAbsolute difference, obtain actual biography
Measurement shoutage value duration a, and judge whether the actual transmissions difference duration a is more than or equal to the data transfer difference duration t,
If it is, judging that current data block is transmitted as time-out, and the label information writing data blocks time-out of current data block is reported
In；
For example, duration W used in actual transmissionsnFor 45min, it is contemplated that duration TnFor 20min, calculate | Wn-Tn| obtain reality
Difference duration a is transmitted, | a |=25min；If data transfer difference duration t is 20min, actual transmissions difference duration a is
25min, it is compared, then actual transmissions difference duration a is more than data transfer difference duration t, then the data block has overtime feelings
Condition；
When completion all data blocks time-out judges, data block time-out report is sent to receiving node, with toilet
Label information of the receiving node in data block time-out report is stated to be confirmed whether to receive the data block.
Preferably, the present embodiment is improved on the basis of Fig. 5, and the Retransmission timeout mechanism also includes：
The overtime report of data block of the receiving node feedback is received, the data block time-out report of feedback is included respectively
The data block label information of individual reception failure, and search whether to exist from the data block label information and retransmit acknowledgement indicator,
If there is data block corresponding to the then numbering lookup in the repeating transmission acknowledgement indicator and data block label information, will look into
The data block retransmissions found into the receiving node, wherein, it is described repeating transmission acknowledgement indicator by the receiving node by its
Write in the data block label information for the data block that need to be retransmitted.
Specifically, when the receiving node receives the data block time-out report of sending node transmission, institute is confirmed one by one
Whether each data block stated in data block time-out report receives success, in the data block of the data block if not receiving successfully
Write-in, which is retransmitted, in label information confirms mark, and generates data block time-out and determine that report is sent into sending node, the transmission
Node receives the data block time-out and determined after reporting, repeating transmission is searched from data block label information and confirms mark, according to heavy
Hair confirms that mark is retransmitted corresponding data block；
The repeating transmission acknowledgement indicator can be written form, such as " it is determined that repeating transmission ", will be corresponding to " it is determined that repeating transmission " write
In data block label information, then when sending node receives data block time-out determination report, report is determined from data block time-out
Read block label information in announcement, and from the mark of data block label information lookup " it is determined that repeating transmission ", and according to " it is determined that weight
Corresponding data block is re-transmitted in receiving node by hair "；Or the repeating transmission acknowledgement indicator can also be numeral or word
Female form, such as " 1 ", " 2 ", " A ", " B ", agreement 1 represent to need to retransmit, and 2 represent to retransmit, and agreement A represents to need
Retransmit, B represents to retransmit；Or the acknowledgement indicator of retransmitting can also be digital or letter form, such as
" △ ", "○", agreement △ represent to need to retransmit, and zero represents to retransmit.
In the above-mentioned embodiment for data block retransmissions, sending node can be by transmitting terminal active detecting with the presence or absence of number
The possibility of failure is sent according to block time-out, and data block time-out report is sent into receiving node, and is determined by receiving node
Data block sends success or not, and receiving node is searched corresponding according to the data block label information recorded in data block time-out report
Data block whether be properly received, if be not successfully received, by retransmit acknowledgement indicator write in the data block label information,
Data block time-out report is fed back into sending node again, sending node retransmits the hair again according to corresponding to retransmitting acknowledgement indicator
The data block of failure is sent, there is the quick data block searched and send failure, improve efficiency of transmission.
Main advantages of the present invention are：
1st, by by data to be transmitted bag piecemeal, according to along setting label and numbering, then be transmitted, effectively raise
Data transmission efficiency, by data to be transmitted bag piecemeal and the processing mode of numbering, it can be easy to receiving terminal quickly by each data block
Integrate, and when some or multiple transmission of data blocks fail, can be retransmitted data block according to label information, without
Total data is retransmitted again, because data to be transmitted is coated with block transmission, its occupancy is small will not also to take excessive resource,
So as to save time cost and financial cost；
2nd, by setting the form of safety code for each data block, prevent viral data from transmitting in the lump to receiving node, improve
The security of data transfer
3rd, the possibility of failure can be sent with the presence or absence of data block time-out by transmitting terminal active detecting, and by data block
Time-out report transmitting and receiving terminal, and determine that data block sends success or not by receiving terminal, if it is determined that failure is sent, then
Again the data block of transmission failure is retransmitted, there is the quick data block searched and send failure, improve efficiency of transmission.
Reader should be understood that in the description of this specification, reference term " one embodiment ", " some embodiments ", " show
The description of example ", " specific example " or " some examples " etc. means to combine the specific features that the embodiment or example describe, tied
Structure, material or feature are contained at least one embodiment or example of the present invention.In this manual, to above-mentioned term
Schematic representation need not be directed to identical embodiment or example.Moreover, description specific features, structure, material or
Feature can combine in an appropriate manner in any one or more embodiments or example.In addition, in not conflicting situation
Under, those skilled in the art by the different embodiments or example described in this specification and different embodiments or can show
The feature of example is combined and combined.
It is apparent to those skilled in the art that for convenience of description and succinctly, the dress of foregoing description
The specific work process with unit is put, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, can pass through
Other modes are realized.For example, device embodiment described above is only schematical, for example, the division of unit, only
Only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can be tied
Another system is closed or is desirably integrated into, or some features can be ignored, or do not perform.
The unit illustrated as separating component can be or may not be physically separate, be shown as unit
Part can be or may not be physical location, you can with positioned at a place, or multiple nets can also be distributed to
On network unit.Some or all of unit therein can be selected to realize scheme of the embodiment of the present invention according to the actual needs
Purpose.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
It is that unit is individually physically present or two or more units are integrated in a unit.It is above-mentioned integrated
Unit can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
If integrated unit realized in the form of SFU software functional unit and as independent production marketing or in use,
It can be stored in a computer read/write memory medium.Based on such understanding, technical scheme substantially or
Person says the part to be contributed to prior art, or all or part of the technical scheme can be in the form of software product
Embody, the computer software product is stored in a storage medium, including some instructions are causing a computer
Equipment (can be personal computer, server, or network equipment etc.) perform each embodiment method of the present invention whole or
Part steps.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory),
Random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with store program codes
Medium.
More than, it is only embodiment of the invention, but protection scope of the present invention is not limited thereto, and it is any ripe
Know those skilled in the art the invention discloses technical scope in, various equivalent modifications can be readily occurred in or replaced
Change, these modifications or substitutions should be all included within the scope of the present invention.Therefore, protection scope of the present invention Ying Yiquan
The protection domain that profit requires is defined.
Claims (10)
- A kind of 1. Point-to-Point Data Transmission method, it is characterised in that comprise the following steps：Sending node is established to the connecting link of receiving node；When monitoring data to be transmitted bag to be present in task stack team, the data to be transmitted bag is obtained；The sending node is split the data to be transmitted bag according to default segmentation rule, obtains multiple data blocks；Unique label is set to the multiple data block, the label includes data block classification information, by the multiple number The order split according to block according to data block is numbered, by the label of data block corresponding to the numbering write-in；The number of sending node statistics label and the data volume size of each data block, and by number information, the data of statistics Measure size information and its corresponding data block label information generation message；To send there is provided each data block of numbering and the message to the receiving node.
- 2. Point-to-Point Data Transmission method according to claim 1, it is characterised in that described by there is provided each of numbering Data block and the message are sent to before the receiving node, in addition to step：Unified safety code is set to each data block, and the safety code is used to judge whether to receive data block for receiving node.
- 3. Point-to-Point Data Transmission method according to claim 1, it is characterised in that the sending node is according to default point Cut rule to be split the data to be transmitted bag, obtain multiple data blocks, including：The capacity such as data to be transmitted bag are split, obtain the equal-sized data block of multiple data volumes；OrBy data to be transmitted bag random division, multiple unequal data blocks of data volume size are obtained；The random division includes setting data-quantity threshold, data volume size and the number of the data block that random division is obtained It is compared according to amount threshold value, will if the data volume for the data block that random division obtains is more than or equal to the data-quantity threshold The data block carries out random division again, until yielding less than the data block of the data-quantity threshold.
- 4. Point-to-Point Data Transmission method according to claim 1, it is characterised in that described by there is provided each of numbering Data block and the message are sent to the receiving node, in addition to step：Judged according to the Retransmission timeout mechanism of setting Whether each data block sends success；The Retransmission timeout mechanism includes：It is provided for judging the preset data transmission difference duration t whether the transmission duration of data block is overtime；And obtain duration W used in data volume size, transmission rate and the actual transmissions of each data blockn；Determine that each data block is sent to the pre- timing of receiving node according to the data volume size and transmission rate of each data block Long Tn；Calculate duration W used in the actual transmissions of current data blocknWith estimated duration TnAbsolute difference, it is poor to obtain actual transmissions It is worth duration a, and judges whether the actual transmissions difference duration a is more than or equal to the data transfer difference duration t, if It is then to judge that current data block is transmitted as time-out, and by the label information writing data blocks time-out report of current data block；When completion all data blocks time-out judges, data block time-out report is sent to receiving node.
- 5. Point-to-Point Data Transmission method according to claim 4, it is characterised in that described when completion all data blocks surpass When judging, data block time-out report is sent to receiving node, in addition to：The data block time-out for receiving the receiving node feedback determines report, and the data block time-out determines that report includes each connect The data block label information of failure is received, and searches whether to exist from the data block label information and retransmits acknowledgement indicator, if In the presence of data block corresponding to the then numbering lookup in the repeating transmission acknowledgement indicator and data block label information, by what is found Into the receiving node wherein, the repeating transmission acknowledgement indicator is written into by the receiving node needs weight to the data block retransmissions In the data block label information of the data block of hair.
- A kind of 6. Point-to-Point Data Transmission device, it is characterised in that including：Link connection module, for establishing sending node to the connecting link of receiving node；Monitoring modular, for when monitoring data to be transmitted bag to be present in task stack team, obtaining the data to be transmitted bag, and Send into sending node；The sending node, for being split the data to be transmitted bag according to default segmentation rule, obtain multiple data Block；And unique label is set to the multiple data block, the label includes data block classification information, will be the multiple The order that data block is split according to data block is numbered, by the label of data block corresponding to the numbering write-in；And the number of label and the data volume size of each data block are counted, and by the number information of statistics, data volume size information And its corresponding data block label information generation message；To send there is provided each data block of numbering and the message to the receiving node.
- 7. Point-to-Point Data Transmission device according to claim 6, it is characterised in that the sending module is additionally operable to：Unified safety code is set to each data block, and the safety code is used to judge whether to receive data block for receiving node.
- 8. Point-to-Point Data Transmission device according to claim 6, it is characterised in that default point in the segmentation module Cutting rule includes：The capacity such as data to be transmitted bag are split, obtain the equal-sized data block of multiple data volumes；OrBy data to be transmitted bag random division, multiple unequal data blocks of data volume size are obtained；The random division specifically includes setting data-quantity threshold, the data volume size for the data block that random division is obtained and institute State data-quantity threshold to be compared, if the data volume for the data block that random division obtains is more than or equal to the data-quantity threshold The data block is then subjected to random division again, until yielding less than the data block of the data-quantity threshold.
- 9. Point-to-Point Data Transmission device according to claim 6, it is characterised in that described heavy also including retransmission module Transmission module is used for after each data block is sent to receiving node, judges that each data block is according to the Retransmission timeout mechanism of setting It is no to send successfully；The Retransmission timeout mechanism includes：It is provided for judging the preset data transmission difference duration t whether the transmission duration of data block is overtime；And obtain duration W used in data volume size, transmission rate and the actual transmissions of each data blockn；Determine that each data block is sent to the pre- timing of receiving node according to the data volume size and transmission rate of each data block Long Tn；Calculate duration W used in the actual transmissions of current data blocknWith estimated duration TnAbsolute difference, it is poor to obtain actual transmissions It is worth duration a, and judges whether the actual transmissions difference duration a is more than or equal to the data transfer difference duration t, if It is then to judge that current data block is transmitted as time-out, and by the label information writing data blocks time-out report of current data block；When completion all data blocks time-out judges, data block time-out report is sent to receiving node.
- 10. Point-to-Point Data Transmission device according to claim 9, it is characterised in that the retransmission module also includes,The data block time-out for receiving the receiving node feedback determines report, and the data block time-out determines that report includes each connect The data block label information of failure is received, and searches whether to exist from the data block label information and retransmits acknowledgement indicator, if In the presence of data block corresponding to the then numbering lookup in the repeating transmission acknowledgement indicator and data block label information, by what is found The data block retransmissions into the receiving node, wherein, it is described repeating transmission acknowledgement indicator by the receiving node be written into need In the data block label information of the data block of repeating transmission.
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| CN108881042A (en) * | 2018-04-25 | 2018-11-23 | 郑州易通众联电子科技有限公司 | Data transmission method and data transmission device |
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