CN111246428A - Network reliable communication method, system, device and storage medium - Google Patents
Network reliable communication method, system, device and storage medium Download PDFInfo
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- CN111246428A CN111246428A CN201911228147.5A CN201911228147A CN111246428A CN 111246428 A CN111246428 A CN 111246428A CN 201911228147 A CN201911228147 A CN 201911228147A CN 111246428 A CN111246428 A CN 111246428A
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- 238000004891 communication Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000005540 biological transmission Effects 0.000 claims abstract description 34
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000012795 verification Methods 0.000 claims description 23
- 238000012790 confirmation Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 6
- 230000006798 recombination Effects 0.000 claims description 6
- 238000005215 recombination Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/42—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for mass transport vehicles, e.g. buses, trains or aircraft
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
Abstract
The invention discloses a network reliable communication method, a system, a device and a storage medium, wherein the method comprises the steps of dividing transmission data into a plurality of data blocks with the same data size, and numbering the data blocks; processing the transmission data and each data block through a hash algorithm to generate corresponding check codes; and sending each data block to a receiving end so that the receiving end carries out checksum reconstruction on each data block. The invention divides the transmission data into blocks by the sending end and generates the check code, so that the receiving end can check and recombine the data blocks, thereby effectively avoiding the situation of packet loss during communication, obviously improving the communication quality and greatly reducing the influence on the communication quality when the network signal is not good. The invention can be widely applied to the communication field.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, a system, an apparatus, and a storage medium for network reliable communication.
Background
With the rapid development of high-speed railways, high-speed rail wireless communication systems are receiving more and more attention from people. And with the continuous increase of the user service demand, the service quality requirement of the high-speed rail wireless communication system is higher and higher. In the process of high-speed rail wireless communication, packet loss is often encountered, and the influence on the real-time communication quality is large.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a network reliable communication method, system, apparatus and storage medium capable of improving communication quality.
In a first aspect, an embodiment of the present invention provides a network reliable communication method, including the following steps:
dividing transmission data into a plurality of data blocks with equal data size, and numbering each data block;
processing the transmission data and each data block through a hash algorithm to generate corresponding check codes;
and sending each data block to a receiving end so that the receiving end carries out checksum reconstruction on each data block.
As a further improvement of the network reliable communication method, the data block includes a total number of the data blocks, a number of the data block, data corresponding to the data block, and a check code corresponding to the data block, and both the first data block and the last data block further include the check code of the transmitted data.
As a further improvement of the network reliable communication method, the method further comprises the following steps:
and acquiring a retransmission request instruction sent by the receiving end, and retransmitting the corresponding data block to the receiving end according to the retransmission request instruction.
As a further improvement of the network reliable communication method, the method further comprises the following steps:
and when the data block is confirmed to be detected to exceed the preset time threshold value and a confirmation instruction of the data block sent by the receiving end is not received, the data block is sent to the receiving end again.
In a second aspect, an embodiment of the present invention provides a network reliable communication method, including the following steps:
receiving each data block sent by a sending end;
verifying the data block according to the check code in the data block and a preset hash algorithm, and sending a confirmation instruction of the data block to a sending end when the verification is confirmed to pass; when the verification is not passed, the retransmission request instruction of the data block is sent to the sending end;
and carrying out recombination processing on each data block passing the verification to obtain complete transmission data.
As a further improvement of the network reliable communication method, the step of performing reassembly on each verified data block to obtain complete transmission data specifically includes:
according to the total number and the number of the data blocks, carrying out missing detection on the data blocks, and sending a retransmission request instruction corresponding to the missing data blocks to a sending end;
and after the data block passes the missing detection, recombining all the data blocks according to the serial numbers of the data blocks to obtain complete transmission data.
In a third aspect, an embodiment of the present invention provides a network reliable communication system, including:
the dividing unit is used for dividing the transmission data into a plurality of data blocks with the same data size and numbering the data blocks;
the generating unit is used for processing the transmission data and each data block through a hash algorithm to generate a corresponding check code;
and the sending unit is used for sending each data block to a receiving end so that the receiving end can check and recombine each data block.
In a fourth aspect, an embodiment of the present invention provides a network reliable communication system, including:
the receiving unit is used for receiving each data block sent by the sending end;
the verification unit is used for verifying the data block according to the verification code in the data block and a preset hash algorithm, and sending a confirmation instruction of the data block to the sending end when the verification is confirmed to pass; when the verification is not passed, the retransmission request instruction of the data block is sent to the sending end;
and the recombination unit is used for recombining each verified data block to obtain complete transmission data.
In a fifth aspect, an embodiment of the present invention provides a network reliable communication apparatus, including:
at least one processor;
at least one memory for storing at least one program;
when executed by the at least one processor, causes the at least one processor to implement the method for network reliable communication.
In a sixth aspect, an embodiment of the present invention provides a storage medium having stored therein processor-executable instructions, where the processor-executable instructions are configured to perform the network reliable communication method when executed by a processor.
The invention has the beneficial effects that:
the network reliable communication method, the system, the device and the storage medium divide the transmission data into blocks through the sending end and generate the check code, so that the receiving end can check and recombine the data blocks, the condition of packet loss during communication can be effectively avoided, the communication quality is obviously improved, and the influence on the communication quality when the network signal is not good is greatly reduced.
Drawings
FIG. 1 is a flow chart illustrating the steps of one embodiment of a method for reliable communication over a network;
FIG. 2 is a flow chart illustrating steps of another embodiment of a method for network reliable communication in accordance with the present invention;
FIG. 3 is a block diagram of one embodiment of a network reliable communication system of the present invention;
fig. 4 is a block diagram of another embodiment of a network-reliable communication system of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
referring to fig. 1, an embodiment of the present invention provides a network reliable communication method, including the following steps:
s101, dividing transmission data into a plurality of data blocks with equal data size, and numbering the data blocks.
In this embodiment, before the sending end sends the transmission data, the sending end divides the transmission data into a plurality of data blocks and numbers the data blocks at the same time, so that even if the data needs to be retransmitted in the subsequent verification, only the corresponding data block needs to be retransmitted, and the whole transmission data does not need to be retransmitted.
And S102, processing the transmission data and each data block through a hash algorithm to generate a corresponding check code.
S103, sending each data block to a receiving end so that the receiving end can check and recombine each data block.
In this embodiment, the data block includes the total number of the data blocks, the number of the data block, the data corresponding to the data block, and the check code corresponding to the data block, and the first data block and the last data block also include the check code for transmitting the data.
In this embodiment, after the sending end sends the data block to the receiving end, the receiving end may check the data block according to the total number, the serial number, the check code, and the like of the packet in the data block, detect whether any data block is missing or failed in the check, and if so, notify the sending end to retransmit the data block, thereby ensuring the integrity of the transmission data, effectively avoiding the situation of packet loss during communication, significantly improving the communication quality, and greatly reducing the influence on the communication quality when the network signal is not good.
Further, as a preferred embodiment of this embodiment, the method further includes the following steps:
and acquiring a retransmission request instruction sent by the receiving end, and retransmitting the corresponding data block to the receiving end according to the retransmission request instruction.
When the receiving end detects that the data block is missing, a retransmission request instruction is sent to the sending end, so that the sending end can resend the data block with the problem according to the retransmission request instruction.
Further, as a preferred embodiment of this embodiment, the method further includes the following steps:
and when the data block is confirmed to be detected to exceed the preset time threshold value and a confirmation instruction of the data block sent by the receiving end is not received, the data block is sent to the receiving end again.
Referring to fig. 2, an embodiment of the present invention provides a network reliable communication method, including the following steps:
s201, receiving each data block sent by a sending end.
S202, verifying the data block according to a check code in the data block and a preset hash algorithm, and sending a confirmation instruction of the data block to a sending end when the verification is confirmed to pass; and when the confirmation check fails, sending a retransmission request instruction of the data block to the sending end.
In this embodiment, only when the check is passed, the confirmation instruction of the data block is sent to the sending end, and if the sending end detects that neither the confirmation instruction nor the retransmission request instruction is received after a certain time, it indicates that the data block is in a problem, and the sending end also resends the data block to the receiving end.
S202, carrying out recombination processing on each data block passing the verification to obtain complete transmission data.
In this embodiment, if there is no data block that passes the verification or a missing data block is found, the sending end needs to be notified to resend the data block, and the data block is reassembled until all the data blocks pass the verification, so as to obtain complete transmission data.
As a preferred implementation manner of this embodiment, the reconstructing each verified data block to obtain complete transmission data specifically includes:
s2021, according to the total number and the serial number of the data blocks, carrying out missing detection on the data blocks, and sending a retransmission request instruction corresponding to the missing data blocks to a sending end;
and S2022, after the missing detection is carried out, recombining all the data blocks according to the serial numbers of the data blocks to obtain complete transmission data.
Referring to fig. 3, an embodiment of the present invention provides a network reliable communication system, including:
the dividing unit is used for dividing the transmission data into a plurality of data blocks with the same data size and numbering the data blocks;
the generating unit is used for processing the transmission data and each data block through a hash algorithm to generate a corresponding check code;
and the sending unit is used for sending each data block to a receiving end so that the receiving end can check and recombine each data block.
It can be seen that the contents in the foregoing method embodiments are all applicable to this system embodiment, the functions specifically implemented by this system embodiment are the same as those in the foregoing method embodiment, and the advantageous effects achieved by this system embodiment are also the same as those achieved by the foregoing method embodiment.
Referring to fig. 4, an embodiment of the present invention provides a network reliable communication system, including:
and the receiving unit is used for receiving each data block sent by the sending end.
The verification unit is used for verifying the data block according to the verification code in the data block and a preset hash algorithm, and sending a confirmation instruction of the data block to the sending end when the verification is confirmed to pass; and when the confirmation check fails, sending a retransmission request instruction of the data block to the sending end.
And the recombination unit is used for recombining each verified data block to obtain complete transmission data.
It can be seen that the contents in the foregoing method embodiments are all applicable to this system embodiment, the functions specifically implemented by this system embodiment are the same as those in the foregoing method embodiment, and the advantageous effects achieved by this system embodiment are also the same as those achieved by the foregoing method embodiment.
The embodiment of the invention provides a network reliable communication device, which comprises:
at least one processor;
at least one memory for storing at least one program;
when executed by the at least one processor, causes the at least one processor to implement the method for network reliable communication.
It can be seen that the contents in the foregoing method embodiments are all applicable to this apparatus embodiment, the functions specifically implemented by this apparatus embodiment are the same as those in the foregoing method embodiment, and the advantageous effects achieved by this apparatus embodiment are also the same as those achieved by the foregoing method embodiment.
Furthermore, an embodiment of the present invention provides a storage medium having stored therein processor-executable instructions, wherein the processor-executable instructions, when executed by a processor, are configured to perform the network reliable communication method.
From the above, it can be seen that the method, system, device and storage medium for network reliable communication according to the present invention block transmission data by the sending end and generate the check code, so that the receiving end can check and reassemble the data block, thereby effectively avoiding packet loss during communication, significantly improving communication quality, and greatly reducing the influence on communication quality when network signals are not good.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A method for network reliable communication, comprising the steps of:
dividing transmission data into a plurality of data blocks with equal data size, and numbering each data block;
processing the transmission data and each data block through a hash algorithm to generate corresponding check codes;
and sending each data block to a receiving end so that the receiving end carries out checksum reconstruction on each data block.
2. The method of claim 1, wherein: the data blocks comprise the total number of the data blocks, the serial numbers of the data blocks, the data corresponding to the data blocks and the check codes corresponding to the data blocks, and the first data block and the last data block also comprise the check codes for transmitting the data.
3. The method of claim 1, wherein: further comprising the steps of:
and acquiring a retransmission request instruction sent by the receiving end, and retransmitting the corresponding data block to the receiving end according to the retransmission request instruction.
4. The method of claim 1, wherein: further comprising the steps of:
and when the data block is confirmed to be detected to exceed the preset time threshold value and a confirmation instruction of the data block sent by the receiving end is not received, the data block is sent to the receiving end again.
5. A method for network reliable communication, comprising the steps of:
receiving each data block sent by a sending end;
verifying the data block according to the check code in the data block and a preset hash algorithm, and sending a confirmation instruction of the data block to a sending end when the verification is confirmed to pass; when the verification is not passed, the retransmission request instruction of the data block is sent to the sending end;
and carrying out recombination processing on each data block passing the verification to obtain complete transmission data.
6. The method of claim 5, wherein: the step of performing reassembly on each data block passing verification to obtain complete transmission data specifically includes:
according to the total number and the number of the data blocks, carrying out missing detection on the data blocks, and sending a retransmission request instruction corresponding to the missing data blocks to a sending end;
and after the data block passes the missing detection, recombining all the data blocks according to the serial numbers of the data blocks to obtain complete transmission data.
7. A network-reliable communication system, comprising:
the dividing unit is used for dividing the transmission data into a plurality of data blocks with the same data size and numbering the data blocks;
the generating unit is used for processing the transmission data and each data block through a hash algorithm to generate a corresponding check code;
and the sending unit is used for sending each data block to a receiving end so that the receiving end can check and recombine each data block.
8. A network-reliable communication system, comprising:
the receiving unit is used for receiving each data block sent by the sending end;
the verification unit is used for verifying the data block according to the verification code in the data block and a preset hash algorithm, and sending a confirmation instruction of the data block to the sending end when the verification is confirmed to pass; when the verification is not passed, the retransmission request instruction of the data block is sent to the sending end;
and the recombination unit is used for recombining each verified data block to obtain complete transmission data.
9. A network-reliable communications apparatus, comprising:
at least one processor;
at least one memory for storing at least one program;
when executed by the at least one processor, cause the at least one processor to implement a method of network reliable communication as claimed in any one of claims 1-6.
10. A storage medium having stored therein processor-executable instructions, which when executed by a processor, are configured to perform a method for network reliable communication according to any one of claims 1-6.
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| CN201911142510 | 2019-11-20 | ||
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Cited By (2)
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| CN114567485A (en) * | 2022-03-01 | 2022-05-31 | 北京全路通信信号研究设计院集团有限公司 | Data processing method, device, equipment and storage medium |
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Application publication date: 20200605 |