CN110913431A - Data wireless transmission method and device, computer equipment and storage medium - Google Patents
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
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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
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Abstract
The invention provides a data wireless transmission method, a device, computer equipment and a storage medium, wherein the method comprises the following steps: sending a data transmission request to a receiving end; after receiving a response to prepare for receiving data sent by a receiving terminal, fragmenting the data into load data packets with preset sizes according to a fragmentation mechanism, and continuously transmitting the load data packets to the receiving terminal; after the load data packet is sent, sending a transmission completion confirmation request to a receiving end; and receiving the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, finishing data transmission. The invention has the beneficial effects that: the data is fragmented according to a fragmentation mechanism, the limitation of the transmission packet length of hardware can be solved, after the load data packet is sent, a transmission completion confirmation request is sent to a receiving end, whether the receiving end completely receives the load data packet or not can be confirmed, and the problem of packet loss and packet error can be effectively solved.
Description
Technical Field
The present invention relates to a data transmission method, an apparatus, a computer device and a storage medium, and more particularly, to a data wireless transmission method, an apparatus, a computer device and a storage medium.
Background
With the development of science and technology, industrial internet of things gradually deepens into a factory system. The collection system and the control system gradually replace manual work. The new factory area can be reserved with communication lines in advance to solve the problem of reliable data transmission; however, the old factory is equipped with wired lines without conditions, and wireless transmission is inevitable. The wireless transmission is extremely unreliable due to the harsh working environment, electromagnetic interference and building shielding. Data packet loss, error code error and the like seriously threaten the data correctness.
Therefore, there is a need for improvements to existing wireless transmission of data.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a data wireless transmission method, a device, computer equipment and a storage medium are provided to improve the reliability of data wireless transmission.
In order to solve the technical problems, the invention adopts the technical scheme that: a data wireless transmission method comprises the following steps,
s10, sending a data transmission request to a receiving end;
s20, after receiving a response to prepare to receive data sent by the receiving end, segmenting the data into load data packets with preset sizes according to a segmentation mechanism, and continuously transmitting the load data packets to the receiving end;
s30, after the load data packet is sent, sending a transmission completion confirmation request to the receiving end;
and S40, receiving the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, completing data transmission.
Further, the data wireless transmission method further comprises,
in step S40, the transfer response transmitted from the receiving side is received, and if the received transfer response is a retransmission response, the following steps are continued,
s50, retransmitting the load data packet which is not transmitted to the receiver;
s60, after the load data packet is sent again, a transmission completion confirmation request is sent to the receiving end;
and S70, receiving the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, completing data transmission.
Further, the step S50 specifically includes:
and acquiring a packet number list of the data packets needing to be retransmitted from the transmission response, and retransmitting the load data packets which are not transmitted to the receiver according to the sequence of the packet number list.
The invention also provides a data wireless transmission device, which comprises,
the data transmission request module is used for transmitting a data transmission request to a receiving end;
the data transmission module is used for fragmenting the data into load data packets with preset sizes according to a fragmentation mechanism after receiving a response of data to be received sent by the receiving terminal, and continuously transmitting the load data packets to the receiving terminal;
a transmission completion confirmation module, configured to send a transmission completion confirmation request to the receiving end after the load data packet is sent;
and the transmission response receiving module receives the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, the data transmission is completed.
Further, the data wireless transmission device further comprises,
the data retransmission module is used for retransmitting the load data packet which is not transmitted to the receiver;
a retransmission completion confirmation module, configured to send a transmission completion confirmation request to the receiving end after the retransmission of the load data packet is completed;
and the retransmission response receiving module is used for receiving the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, the data transmission is completed.
Further, the data retransmission module is specifically configured to:
and acquiring a packet number list of the data packets needing to be retransmitted from the transmission response, and retransmitting the load data packets which are not transmitted to the receiver according to the sequence of the packet number list.
The invention also provides computer equipment which comprises a memory and a processor, wherein the memory is stored with a computer program, and the processor realizes the wireless data transmission method when executing the computer program.
The present invention also provides a storage medium, wherein the storage medium stores a computer program, and the computer program can realize the wireless data transmission method according to any one of the above items when being executed by a processor.
The invention has the beneficial effects that: after receiving a response to prepare to receive data sent by a receiving end, the technical scheme fragments the data into load data packets with preset sizes according to a fragmentation mechanism and continuously transmits the load data packets to the receiving end; after the load data packet is sent, sending a transmission completion confirmation request to a receiving end; the data is fragmented according to a fragmentation mechanism, the limitation of the transmission packet length of hardware can be solved, after the load data packet is sent, a transmission completion confirmation request is sent to a receiving end, whether the receiving end completely receives the load data packet or not can be confirmed, and the problem of packet loss and packet error can be effectively solved.
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The following detailed description of the invention refers to the accompanying drawings.
Fig. 1 is a flow chart of a wireless data transmission according to an embodiment of the present invention;
fig. 2 is a diagram of state switching at a transmitting end according to an embodiment of the present invention;
FIG. 3 is a diagram of a data packet format according to an embodiment of the present invention;
FIG. 4 is a schematic block diagram of a computer device in accordance with one embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Referring to fig. 1, the first embodiment of the present invention is: a data wireless transmission method comprises the following steps,
s10, sending a data transmission request to a receiving end;
s20, after receiving a response to prepare to receive data sent by the receiving end, segmenting the data into load data packets with preset sizes according to a segmentation mechanism, and continuously transmitting the load data packets to the receiving end;
s30, after the load data packet is sent, sending a transmission completion confirmation request to the receiving end;
and S40, receiving the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, completing data transmission.
In step S40, the transfer response transmitted from the receiving side is received, and if the received transfer response is a retransmission response, the following steps are continued,
s50, retransmitting the load data packet which is not transmitted to the receiver;
s60, after the load data packet is sent again, a transmission completion confirmation request is sent to the receiving end;
and S70, receiving the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, completing data transmission.
Further, the step S50 specifically includes:
and acquiring a packet number list of the data packets needing to be retransmitted from the transmission response, and retransmitting the load data packets which are not transmitted to the receiver according to the sequence of the packet number list.
In this embodiment, referring to the state switching diagram of the sending end in fig. 2, when the sending end performs data interaction at the receiving end, the sending end enters different states in different time periods, and the data in the technical scheme is fragmented by using a packet fragment retransmission mechanism; the system formed between the sending end and the receiving end has the states of sending transmission request, continuous transmission, transmission confirmation, retransmission, transmission completion and the like. The data transmission process comprises the following steps: the method comprises the following processes of transmitting a request by a transmitter, answering and receiving by a receiver for preparation, continuously transmitting a load data packet by the transmitter, sending a packet transmission completion confirmation, answering retransmission information by the receiver, transmitting the data packet by the transmitter according to the retransmission information, receiving a transmission completion response, and the like; the data is fragmented according to a fragmentation mechanism, the limitation of the transmission packet length of hardware can be solved, after the load data packet is sent, the sending end sends a transmission completion confirmation request to the receiving end to confirm whether the receiving end completely receives the load data packet, if the data packet is not completely received, a retransmission mechanism is started to retransmit the data which is not transmitted, and the problem of packet loss and packet error can be effectively solved.
Referring to fig. 3, the transmission protocol includes: a transmission request format, a receiver ready format, a data packet format, a transmission completion acknowledgement format, a retransmission acknowledgement format, and a transmission completion acknowledgement format. The data transmission system formed by the sending end and the receiving end is very suitable for complex environment transmission, the limitation of the transmission packet length of hardware can be solved by a fragmentation mechanism, and the problem of packet loss and packet error can be solved by a retransmission mechanism.
A transmission request is sent, and the data packet needs to be responded by the receiving party. If the 'receiving is ready' is not received in time-out, the data is retransmitted, and the retransmission has a limit number; the user can set the retransmission limit times reasonably according to the actual use scene.
The transmission completion is confirmed, and the sending end sends an inquiry data packet to the receiving end; this packet requires a reply from the receiving party. If the response is not received after overtime, the sending end can repeatedly send the data packet to the receiving end; the response of the receiving end comprises a retransmission response and a transmission completion response.
And (4) retransmission response: the retransmission acknowledgement carries a packet number list of the data packets to be retransmitted. And the sending end extracts the number list after receiving the retransmission response and transmits the data packet once according to the list sequence. And then returns to the "transfer complete acknowledge" state to ask whether the transfer is complete.
And transmitting a completion response: the transfer is complete. When the transmitting end receives the transmission completion, the transmitting end indicates that the transmitting end has successfully transmitted all the data, and the receiving end completely receives the data packet transmitted by the transmitting end.
The data wireless transmission method can be applied to environments with strong electromagnetic interference and building shielding, and the reliability of data wireless transmission can be improved.
A second embodiment of the present invention is a data wireless transmission apparatus including,
the data transmission request module is used for transmitting a data transmission request to a receiving end;
the data transmission module is used for fragmenting the data into load data packets with preset sizes according to a fragmentation mechanism after receiving a response of data to be received sent by the receiving terminal, and continuously transmitting the load data packets to the receiving terminal;
a transmission completion confirmation module, configured to send a transmission completion confirmation request to the receiving end after the load data packet is sent;
and the transmission response receiving module receives the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, the data transmission is completed.
Further, the data wireless transmission device further comprises,
the data retransmission module is used for retransmitting the load data packet which is not transmitted to the receiver;
a retransmission completion confirmation module, configured to send a transmission completion confirmation request to the receiving end after the retransmission of the load data packet is completed;
and the retransmission response receiving module is used for receiving the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, the data transmission is completed.
Further, the data retransmission module is specifically configured to:
and acquiring a packet number list of the data packets needing to be retransmitted from the transmission response, and retransmitting the load data packets which are not transmitted to the receiver according to the sequence of the packet number list.
It should be noted that, as can be clearly understood by those skilled in the art, the specific implementation process of the data wireless transmission apparatus and each module may refer to the corresponding description in the foregoing method embodiment, and for convenience and brevity of description, no further description is provided herein.
The above-mentioned data wireless transmission means may be implemented in the form of a computer program which can be run on a computer device as shown in fig. 4.
Referring to fig. 4, a schematic block diagram of a computer device according to an embodiment of the present application is provided. The computer device 500 may be a terminal or a server, where the terminal may be an electronic device with a communication function, such as a smart phone, a tablet computer, a notebook computer, a desktop computer, a personal digital assistant, and a wearable device. The server may be an independent server or a server cluster composed of a plurality of servers.
Referring to fig. 4, the computer device 500 includes a processor 502, memory, and a network interface 505 connected by a system bus 501, where the memory may include a non-volatile storage medium 503 and an internal memory 504.
The non-volatile storage medium 503 may store an operating system 5031 and a computer program 5032. The computer program 5032 comprises program instructions that, when executed, cause the processor 502 to perform a method of wireless transmission of data.
The processor 502 is used to provide computing and control capabilities to support the operation of the overall computer device 500.
The internal memory 504 provides an environment for the operation of the computer program 5032 in the non-volatile storage medium 503, and when the computer program 5032 is executed by the processor 502, the processor 502 can be enabled to execute a data wireless transmission method.
The network interface 505 is used for network communication with other devices. Those skilled in the art will appreciate that the configuration shown in fig. 4 is a block diagram of only a portion of the configuration associated with the present application and does not constitute a limitation of the computer device 500 to which the present application may be applied, and that a particular computer device 500 may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
Wherein the processor 502 is configured to run the computer program 5032 stored in the memory to implement the following steps:
s10, sending a data transmission request to a receiving end;
s20, after receiving a response to prepare to receive data sent by the receiving end, segmenting the data into load data packets with preset sizes according to a segmentation mechanism, and continuously transmitting the load data packets to the receiving end;
s30, after the load data packet is sent, sending a transmission completion confirmation request to the receiving end;
and S40, receiving the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, completing data transmission.
In step S40, the transfer response transmitted from the receiving side is received, and if the received transfer response is a retransmission response, the following steps are continued,
s50, retransmitting the load data packet which is not transmitted to the receiver;
s60, after the load data packet is sent again, a transmission completion confirmation request is sent to the receiving end;
and S70, receiving the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, completing data transmission.
It should be understood that, in the embodiment of the present Application, the Processor 502 may be a Central Processing Unit (CPU), and the Processor 502 may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. Wherein a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It will be understood by those skilled in the art that all or part of the flow of the method implementing the above embodiments may be implemented by a computer program instructing associated hardware. The computer program includes program instructions, and the computer program may be stored in a storage medium, which is a computer-readable storage medium. The program instructions are executed by at least one processor in the computer system to implement the flow steps of the embodiments of the method described above.
Accordingly, the present invention also provides a storage medium. The storage medium may be a computer-readable storage medium. The storage medium stores a computer program, wherein the computer program comprises program instructions. The program instructions, when executed by the processor, cause the processor to perform the steps of:
s10, sending a data transmission request to a receiving end;
s20, after receiving a response to prepare to receive data sent by the receiving end, segmenting the data into load data packets with preset sizes according to a segmentation mechanism, and continuously transmitting the load data packets to the receiving end;
s30, after the load data packet is sent, sending a transmission completion confirmation request to the receiving end;
and S40, receiving the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, completing data transmission.
In step S40, the transfer response transmitted from the receiving side is received, and if the received transfer response is a retransmission response, the following steps are continued,
s50, retransmitting the load data packet which is not transmitted to the receiver;
s60, after the load data packet is sent again, a transmission completion confirmation request is sent to the receiving end;
and S70, receiving the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, completing data transmission.
The storage medium may be a usb disk, a removable hard disk, a Read-Only Memory (ROM), a magnetic disk, or an optical disk, which can store various computer readable storage media.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative. For example, the division of each unit is only one logic function division, and there may be another division manner in actual implementation. For example, various elements or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented.
The steps in the method of the embodiment of the invention can be sequentially adjusted, combined and deleted according to actual needs. The units in the device of the embodiment of the invention can be merged, divided and deleted according to actual needs. In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a storage medium. Based on such understanding, the technical solution of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a terminal, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A method of wireless data transmission, comprising: comprises the following steps of (a) carrying out,
s10, sending a data transmission request to a receiving end;
s20, after receiving a response to prepare to receive data sent by the receiving end, segmenting the data into load data packets with preset sizes according to a segmentation mechanism, and continuously transmitting the load data packets to the receiving end;
s30, after the load data packet is sent, sending a transmission completion confirmation request to the receiving end;
and S40, receiving the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, completing data transmission.
2. The wireless data transmission method according to claim 1, wherein: also comprises the following steps of (1) preparing,
in step S40, the transfer response transmitted from the receiving side is received, and if the received transfer response is a retransmission response, the following steps are continued,
s50, retransmitting the load data packet which is not transmitted to the receiver;
s60, after the load data packet is sent again, a transmission completion confirmation request is sent to the receiving end;
and S70, receiving the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, completing data transmission.
3. The wireless data transmission method according to claim 2, wherein: the step S50 specifically includes:
and acquiring a packet number list of the data packets needing to be retransmitted from the transmission response, and retransmitting the load data packets which are not transmitted to the receiver according to the sequence of the packet number list.
4. A wireless data transmission device, characterized in that: the data wireless transmission device comprises a data wireless transmission device,
the data transmission request module is used for transmitting a data transmission request to a receiving end;
the data transmission module is used for fragmenting the data into load data packets with preset sizes according to a fragmentation mechanism after receiving a response of data to be received sent by the receiving terminal, and continuously transmitting the load data packets to the receiving terminal;
a transmission completion confirmation module, configured to send a transmission completion confirmation request to the receiving end after the load data packet is sent;
and the transmission response receiving module receives the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, the data transmission is completed.
5. The wireless transmission device of data according to claim 4, wherein: also comprises the following steps of (1) preparing,
the data retransmission module is used for retransmitting the load data packet which is not transmitted to the receiver;
a retransmission completion confirmation module, configured to send a transmission completion confirmation request to the receiving end after the retransmission of the load data packet is completed;
and the retransmission response receiving module is used for receiving the transmission response sent from the receiving end, and if the received transmission response is a transmission completion response, the data transmission is completed.
6. The wireless data transmission device according to claim 5, wherein: the data retransmission module is specifically configured to:
and acquiring a packet number list of the data packets needing to be retransmitted from the transmission response, and retransmitting the load data packets which are not transmitted to the receiver according to the sequence of the packet number list.
7. A computer device, characterized in that the computer device comprises a memory and a processor, the memory having stored thereon a computer program which, when executed by the processor, implements the wireless transmission method of data according to any one of claims 1 to 5.
8. A storage medium, characterized in that the storage medium stores a computer program which, when executed by a processor, can implement the wireless transmission method of data according to any one of claims 1 to 5.
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| CN114900488A (en) * | 2022-03-07 | 2022-08-12 | 浙江大华技术股份有限公司 | Data transmission method, computer readable storage medium and device |
| CN117812166A (en) * | 2024-03-01 | 2024-04-02 | 广州市仪美医用家具科技股份有限公司 | UDP-based data transmission method, system, equipment and storage medium |
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| WO2019148504A1 (en) * | 2018-02-05 | 2019-08-08 | Oppo广东移动通信有限公司 | Data transmission method and device, and computer storage medium |
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