WO2018018627A1 - Data transmission method and system, and receiving device - Google Patents

Abstract

Disclosed in embodiments of the present application are a data transmission method and system, and a receiving device. The method comprises: generating a first transmission data packet and a second transmission data packet, wherein the first transmission data packet and the second transmission data packet comprise same data content; sending the first transmission data packet to a receiving device by means of a first transmission channel; and sending the second transmission data packet to the receiving device by means of a second transmission channel. By means of the method, the embodiments of the present application can ensure that a to-be-transmitted data block is transmitted in real time.

Description

Data transmission method, system and receiving device [Technical Field]

The embodiments of the present invention relate to the field of communications technologies, and in particular, to a data transmission method, system, and receiving apparatus.

【Background technique】

With the development of wireless technology, wireless transmission technology applications are increasingly accepted by all walks of life. Nowadays, wireless transmission, such as WIFI, LTE, and DVB, basically transmits data on a fixed frequency channel on a channel of a certain frequency band in the same frequency band. Once the interference is received, the measures taken generally jump to another one. Frequency or use communication protocol to avoid interference. However, in wireless communication using different protocols, if the same channel interference, only frequency hopping can be used to ensure data transmission, but the real-time performance of frequency hopping cannot be guaranteed. Especially in the case of real-time video and audio digital transmission, it will lead to image mosaic, data error and other issues, which have a great impact on the user experience.

In the process of implementing the present application, the applicant finds that the related technology has the following problems: all data is transmitted on the same channel, and once interfered, all data is inaccurate, resulting in data errors, which is not conducive to data transmission.

[Summary of the Invention]

The technical problem to be solved by the embodiments of the present application is to provide a data transmission method, system, and receiving apparatus, which are configured to transmit data packets of the same data on two transmission channels by establishing two transmission channels between the transmitting device and the receiving device. This ensures that the data will not be lost or interfered with during transmission.

To solve the above technical problem, a technical solution adopted by the embodiment of the present application is to provide a data transmission method. The method includes: generating a first transport data packet and a second transport data packet, where the first transport data packet and the second transport data packet include the same data content; and sending, by using the first transport channel, the first transport data packet to the receiving device; Transmitting a second transport packet to the receiving device over the second transport channel.

The first transmission channel and the second transmission channel are located in different frequency bands.

Wherein, the coding manner of the data content in the first transmission data packet is different from the number of the second transmission data packet According to the way the content is encoded.

The data transmission method further includes: the receiving device determines the earliest received data packet among the first transmission data packet and the second transmission data packet; and the receiving device processes the earliest received data packet.

In order to solve the above problem, the present application also adopts a receiving apparatus, which receives a data packet sent by a transmitting apparatus through a first transmission channel or a second transmission channel; parses a data packet, determines whether the data packet is correct; and if the data packet is correct, determines The first received packet; the first received packet is processed.

The receiving device further includes: if the data packet is incorrect, discarding the data packet.

In order to solve the above problem, the present application further provides a data transmission system, including: a generating module, configured to generate a first transport data packet and a second transport data packet, where the first transport data packet and the second transport data packet include The same data content is provided; the sending module is configured to send the first transport data packet to the receiving device by using the first transport channel, and the second transport channel sends the second transport data packet to the receiving device.

The generating module further includes: a copy unit, configured to generate a copy of the transport data block; and a packaging unit, configured to encapsulate the sequence number corresponding to the transport data block and the transport data block into a transport data packet according to a preset encapsulation algorithm.

A receiving device, comprising: a receiving module, configured to receive a data packet sent by a sending device by using a first transport channel or a second transport channel; and a parsing module, configured to parse the first transport data packet or the second transport data packet; And used to determine whether the first transport packet or the second transport packet is correct.

The receiving device further includes: a discarding module, configured to discard the data packet if the first transport data packet or the second transport data packet is incorrect.

The beneficial effects of the embodiments of the present application are: different from the prior art, the transmitting device of the present application sends the first transmission data packet carrying the same data content to the receiving device through the first and second two transmission channels, respectively. Transmitting a data packet, after receiving, by the first and second two transmission channels, the first transmission data packet and the second transmission data packet, according to the earliest arrival of the first transmission data packet and the second transmission data packet Transmitting the data packet for processing is beneficial to ensure the timeliness of the receiving device to obtain the data content, and is well avoided in the single channel transmission, if the transmission data packet has a problem, it needs to be connected. The receiving device and the transmitting device synchronously hop to another transmission channel, and retransmit the transmission data content, causing a serious delay in the data content.

[Description of the Drawings]

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings to be used in the embodiments of the present application will be briefly described below. Obviously, the drawings described below are only some embodiments of the present application, and other drawings may be obtained from those skilled in the art without departing from the drawings.

1 is a flow chart of a first embodiment of a data transmission method according to the present application;

2 is a flow chart of a second embodiment of a data transmission method according to the present application;

3 is a flow chart of a third embodiment of a data transmission method according to the present application.

4 is a schematic diagram of an embodiment of a data transmission system of the present application;

FIG. 5 is a schematic diagram of a first embodiment of an electronic device according to a data transmission method of the present application; FIG.

6 is a schematic diagram of an embodiment of a receiving device of the present application;

FIG. 7 is a schematic diagram of a second embodiment of an electronic device according to a data transmission method of the present application.

【detailed description】

Referring to FIG. 1, an embodiment of a data transmission method of the present application includes:

Step 101: Generate a first transport data packet and a second transport data packet, where the first transport data packet and the second transport data packet include the same data content;

Although the first transport data packet and the second transport data packet contain the same data content, in order to adapt the first transport data packet and the second transport data packet to different transport channels, the data in the first transport data packet The encoding manner of the content may be different from the encoding manner of the data content in the second transport data packet. For example, the first and second preset encapsulation algorithms may be set, and the first preset encapsulation algorithm is corresponding to the first transmission. Channel, the second preset encapsulation algorithm is corresponding to the second transmission channel, and the data content is encapsulated into the second transmission data packet according to the second preset encapsulation algorithm, and the data content is encapsulated to the first according to the first preset encapsulation algorithm The data packet is transmitted. Of course, in order to facilitate judging whether the first transport data packet and the second transport data packet contain the same data content, the data content may also be numbered and the number is encapsulated into the transport data packet.

Further, in order to facilitate the generation of two transport packets containing the same data content, A copy of the data content is generated, and then a first transport packet is generated according to the data content, and a second transport packet is generated according to the copy of the data content.

Step 102: Send a first transport data packet to the receiving device by using the first transport channel.

Step 103: Send a second transmission data packet to the receiving device by using a second transmission channel.

It should be noted that steps 101 to 103 are all performed by the transmitting device, and the first transmission channel and the second transmission channel refer to a data channel established between the transmitting device and the receiving device. In this embodiment, the first transmission The channel and the second transmission channel are located in different frequency bands, for example, the first transmission channel is 2.4G, and the second transmission channel is 900M. The transmitting device sends the generated first data packet and the second data packet respectively from the first transport channel and the second transport channel, and since the first transport channel and the second transport channel are independent, the first transport packet and the first The two transport packets are not affected by each other.

In the embodiment of the present application, the transmitting apparatus ensures the independence of the first transport data packet and the second transport data packet by transmitting the same data content through the first transport channel and the second transport channel, even if one of the transport data is transmitted. When there is a problem in the process of transmission, the receiving device can use another transmission data packet for processing, ensuring the timeliness of data transmission, and well avoiding the need for receiving the device when there is a problem in the transmission of the data packet in the single channel transmission. Synchronously hopping with the transmitting device to another transport channel, retransmitting the transmitted data content, and the data content is seriously delayed. Of course, in other alternative embodiments, the transmitting device may also generate three, four or more transport packets carrying the same data content, and each transport packet corresponds to a transport channel for transmission.

Since the first transport data packet and the second transport data packet carry the same data content, in order to prevent the receiving device from repeatedly using the same data content, the receiving device may first arrive according to the first one of the first transport data packet and the second transport data packet. To transfer the packet for processing, please refer to Figure 2. The method also includes:

Step 201: The receiving device determines an earliest received data packet among the first transport data packet and the second transport data packet;

The receiving device processes according to the earliest received data packet, which is beneficial to ensure the timeliness of the receiving device to obtain the data content. Especially in the online streaming media transmission, the real-time performance of the data content is very important, and the extension of the data content is likely to cause the cardon.

In addition, the receiving device determines that the first received data packet among the first transport data packet and the second transport data packet can be transitioned through the data storage, as follows:

Determining whether the first transmission data packet is correct, if the correct receiving device parses the data packet, discarding the data packet if it is incorrect; and determining whether the data storage space is stored with the first transmission data If the data stored in the packet has the same data content, if the storage space stores data that is not the same as the data content carried by the first transport packet, the data content is stored in the storage space, otherwise the data packet is discarded.

Step 202: The receiving device processes the earliest received data packet.

Further, when receiving the data packet through the first transmission channel and the second transmission channel, the receiving device may further determine the correctness of the data packet, and directly discard the data packet when the data packet is incorrect.

In the embodiment of the present application, the sending device sends the first transport data packet and the second transport data packet carrying the same data content to the receiving device through the first and second two transmission channels, respectively, and the receiving device passes the first, After receiving the first transmission data packet and the second transmission data packet, the second two transmission channels are processed according to the earliest arriving transmission data packet among the first transmission data packet and the second transmission data packet, thereby facilitating acquisition by the receiving device. The timeliness of the data content is well avoided in the single-channel transmission. If there is a problem in the transmission of the data packet, the receiving device and the transmitting device need to be synchronously hopped to another transmission channel, and the transmission data content is retransmitted, resulting in the appearance of the data content. A severe delay.

Referring to FIG. 3, FIG. 3 is a flowchart of a second embodiment of a data transmission method, and a data transmission method, including:

Step 301: Receive, by using the first transport channel and the second transport channel, a data packet sent by the sending device.

The first transmission channel and the second transmission channel are channels for transmitting data between the transmitting device and the receiving device, and when the transmitting device transmits the data content to the receiving device, respectively carrying the data through the first transmission channel and the second transmission channel The data packet of the content, in short, a data content is transmitted to the receiving device twice through the first transmission channel and the second transmission channel, respectively.

Step 302: Parsing the data packet, determining whether the data packet is correct; if yes, proceeding to step 303, otherwise proceeding to step 305;

Parsing the data packet to obtain data content carried by the data packet. In addition, different transport channels may have different formats for transmitting data. Therefore, the first transport channel may correspond to a first preset parsing algorithm, and the second transport channel may correspond to a second preset parsing algorithm to parse the first transmit data. The manner of the packet is also performed according to the first preset parsing algorithm, and the first preset parsing algorithm corresponds to the second preset encapsulation algorithm.

Step 303: If the data packet is correct, determine the data packet received for the first time;

Among them, there are various ways to check whether the data packet is correct, for example, setting a check code in the data packet, checking whether the data packet is correct by using the check code, or by judging whether the data packet includes the first and last ends. The package identifier determines whether the packet is correct.

Step 304: Process the data packet received for the first time;

The method of determining the first received data packet can also be various, for example, recording the receiving time of each data packet, and when it is found that two data packets having the same data content are received, it is determined according to the receiving time which packet is received for the first time. The packet to. In order to reduce the storage amount of data stored by the receiving device, it is also possible to determine whether the data storage space has the same data packet when the data packet is received, and if the data packet is correct, if not, store the data packet to the data. The storage space, if any, discards the data packet, and subsequently processes the data packet, and directly extracts the data packet from the data storage space for processing, thereby effectively avoiding repeated processing of the data. Of course, in other alternative embodiments, the received data block to be transmitted may also be recorded in the form of a record table. When the receiving device finds that the same pending data block has been received from the record table, the data to be transmitted is received. Block is discarded.

Step 305: If the data packet is incorrect, discard the data packet.

The receiving device may also transmit a data retransmission message to the transmitting device when the receiving device determines that there are two data packets containing the same data content in the discarded data packet.

It should be noted that when the transmitting device transmits the data content, the data content may be obtained by dividing the original data, and each data content is set with a sequence number, and the transmission data packet includes a corresponding content in addition to the data content. Sequence number. After receiving the data content and the sequence number, the receiving device restores the original data according to the sequence number and the data content.

In the embodiment of the present application, after receiving, by the first and second two transmission channels, the first transmission data packet and the second transmission data packet, the receiving device is configured according to the earliest among the first transmission data packet and the second transmission data packet. The arrival of the transmitted data packet for processing is beneficial to ensure the timeliness of the receiving device to obtain the data content, and is well avoided in the single channel transmission. If there is a problem in the transmission data packet, the receiving device and the transmitting device need to be synchronously hopped to another A transmission channel retransmits the transmitted data content, causing a serious delay in the data content.

The present application also provides an embodiment of a data transmission system. Referring to FIG. 4, the data transmission system 400 includes a transmitting device 401 and a receiving device 402. The transmitting device 401 includes a generating module 4011 and a transmitting module 4012. The receiving device 402 includes a determining module 4021 and a processing module 4022. The generating module 4011 is configured to generate a first transport data packet and a second transport data packet, where the first transport data packet and the second transport data packet include the same data content. a sending module 4012, configured to send, by using a first transport channel, a first transport data packet to a receiving device, where the second transport channel sends a second data to the receiving device Transfer packets. The determining module 4021 is configured to determine, by the receiving device, the earliest received data packet among the first transport data packet and the second transport data packet. The processing module 4022 is configured to, by the receiving device, process the earliest received data packet. The generating module 4011, the sending module 4012, the determining module 4021, and the processing module 4022 may each be a processor, and the processor executes various functional applications and data processing by running, that is, a processing method for implementing data transmission.

Specifically, the generating module 4011 may copy the data content to generate a copy of the data content, and the two data contents generate two data packets, which are respectively transmitted on the first transport channel and the second transport channel. In order to adapt the first transport data packet and the second transport data packet to different transport channels, the encoding manner of the data content in the first transport data packet may be different from the encoding manner of the data content in the second transport data packet. For example, the first and second preset encapsulation algorithms may be set, the first preset encapsulation algorithm is corresponding to the first transmission channel, and the second preset encapsulation algorithm is corresponding to the second transmission channel, according to the second preset encapsulation algorithm. Encapsulating the data content into the second transport data packet, and encapsulating the data content into the first transport data packet according to the first preset encapsulation algorithm, of course, for convenience, determining whether the first transport data packet and the second transport data packet include The same data content can also be used to number the data content and encapsulate the number into the transport data packet.

In the embodiment of the present application, the transmitting apparatus ensures the independence of the first transport data packet and the second transport data packet by transmitting the same data content through the first transport channel and the second transport channel, even if one of the transmissions is transmitted. When there is a problem in the transmission process of the data packet, the receiving device can use another transmission data packet for processing, ensuring the timeliness of the data transmission, and well avoiding the single channel transmission, if the transmission data packet has a problem, it needs to be received. The device and the transmitting device synchronously hop to another transmission channel, retransmitting the transmitted data content, and the data content is seriously delayed.

The present application further provides an embodiment of a non-volatile computer storage medium storing computer-executable instructions that can perform the data transfer method of any of the above-described embodiments.

Please refer to FIG. 5. FIG. 5 is a schematic diagram of a first embodiment of an electronic device for performing the data transmission method of the present application. The electronic device 500 includes a processor 501, a memory 503, a communication adapter 502, and a bus. The processor 501, the memory 503, the communication adapter 502, and the bus are connected. In Fig. 5, a bus connection is taken as an example.

The memory 503 is used as a non-volatile computer readable storage medium for storing non-volatile software programs, non-volatile computer-executable programs, and modules, such as data transmission in the embodiments of the present application. The program instructions/modules (generation module 401, transmission module 402, determination module 403, and processing module 404) corresponding to the input method. The processor 501 executes various functional applications and data processing of the server by executing non-volatile software programs, instructions, and modules stored in the memory 503, that is, a processing method for implementing data transmission of the above method embodiments. The memory 503 may include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to use of the processing device of the data transmission, and the like. Further, the memory 503 may include a high speed random access memory, and may also include a nonvolatile memory such as at least one magnetic disk storage device, flash memory device, or other nonvolatile solid state storage device. In some embodiments, the memory 503 can optionally include memory remotely located relative to the processor 501 that can be connected to the processing device of the data transfer over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The one or more modules are stored in the memory 503, and when executed by the one or more processors 501, perform a processing method of data transmission in any of the above method embodiments.

The electronic device of the embodiment of the present application exists in various forms, including but not limited to:

(1) Mobile communication devices: These devices are characterized by mobile communication functions and are mainly aimed at providing voice and data communication. Such terminals include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.

(2) Ultra-mobile personal computer equipment: This type of equipment belongs to the category of personal computers, has computing and processing functions, and generally has mobile Internet access. Such terminals include: PDAs, MIDs, and UMPC devices, such as the iPad.

(3) Portable entertainment devices: These devices can display and play multimedia content. Such devices include: audio, video players (such as iPod), handheld game consoles, e-books, and smart toys and portable car navigation devices.

(4) Server: A device that provides computing services. The server consists of a processor, a hard disk, a memory, a system bus, etc. The server is similar to a general-purpose computer architecture, but because of the need to provide highly reliable services, processing power and stability High reliability in terms of reliability, security, scalability, and manageability.

(5) Other electronic devices with data interaction functions.

The device embodiments described above are merely illustrative, wherein the described as separate components The units may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In the embodiment of the present application, the first and second transmission channels between the receiving device and the receiving device are established by using a pre-stored instruction in the processor of the electronic device, and the transmission data block and the preset number are generated into data packets. Sending data packets to the receiving device through the first and second transmission channels respectively, and the receiving device uses the earliest arriving and correct transmission data packet for processing, and when the data packet on one transmission channel has an error, the other device may directly make another The data packet on the transmission channel does not need to be synchronously hopped to another transmission channel when the receiving device and/or the transmitting device finds a transmission error in the transmission channel, and retransmits the transmission data block to ensure the real-time transmission of the transmission data block.

The present application further provides an embodiment of a receiving device. Referring to FIG. 6, the receiving device 600 includes: a receiving module 601, a parsing module 602, a determining module 603, a determining module 604, a processing module 605, and a discarding module 606. The receiving module 601 is configured to receive, by using the first transport channel or the second transport channel, a data packet sent by the sending device. The parsing module 602 is configured to parse the first transport data packet or the second transport data packet. The determining module 603 is configured to determine whether the first transport data packet or the second transport data packet is correct. The determining module 604 is configured to determine the data packet received for the first time if the data packet is correct. The processing module 605 is configured to process the data packet that is first received. The discarding module 606 is configured to discard the data packet if the first transport data packet or the second transport data packet is incorrect. It is worth noting that: determining whether the data storage space stores the same data block as the transport data block carried by the transport data packet is also processed by the judging module. If there is the same data block, the discarding module discards the duplicate data block if If there is no duplication, it is stored in the storage space. The receiving module 601, the parsing module 602, the judging module 603, the determining module 604, the processing module 605, and the discarding module 606 are respectively processors, and the processor executes various functional applications and data processing of the receiving device by running, that is, implementing data. The processing method of the transmission.

In the embodiment of the present application, after receiving, by the first and second two transmission channels, the first transmission data packet and the second transmission data packet, the receiving device first arrives according to the first transmission data packet and the second transmission data packet. The transmission of the data packet is processed to ensure the timeliness of the receiving device to obtain the data content, and the single channel transmission is well avoided. If there is a problem in the transmission data packet, the receiving device and the transmitting device need to be synchronously hopped to another Transport channel, retransmitting the transmitted data content, causing the data content to appear A severe delay.

Please refer to FIG. 7. FIG. 7 is a schematic diagram of a second embodiment of an electronic device for performing the data transmission method of the present application. The electronic device 700 further includes a processor 701, a memory 702, a communication adapter 703, and a bus. The processor 701, the memory 703, the communication adapter 702, and the bus are connected. In Fig. 7, a bus connection is taken as an example. The processor 701, the memory 702, and the communication adapter 703 are all connected to the bus.

The memory 703 is used as a non-volatile computer readable storage medium, and can be used for storing non-volatile software programs, non-volatile computer-executable programs, and modules, as in the processing method of data transmission in the embodiment of the present application. Program instructions/modules (receiving module 601, parsing module 602, judging module 603, determining module 604, processing module 605, and discarding module 606). The processor 701 executes various functional applications and data processing of the server by executing non-volatile software programs, instructions, and modules stored in the memory 703, that is, implementing the data transmission method of the above method embodiment. The memory 703 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to use of the processing device of the data transmission, and the like. Further, the memory 703 may include a high speed random access memory, and may also include a nonvolatile memory such as at least one magnetic disk storage device, a flash memory device, or other nonvolatile solid state storage device. In some embodiments, the memory 703 can optionally include memory remotely located relative to the processor 701 that can be connected to the processing device of the data transfer over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The one or more modules are stored in the memory 703, and when executed by the one or more processors 701, perform a processing method of data transmission in any of the above method embodiments.

The electronic device of the embodiment of the present application exists in various forms, including but not limited to:

(1) Mobile communication devices: These devices are characterized by mobile communication functions and are mainly aimed at providing voice and data communication. Such terminals include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.

(2) Ultra-mobile personal computer equipment: This type of equipment belongs to the category of personal computers, has computing and processing functions, and generally has mobile Internet access. Such terminals include: PDAs, MIDs, and UMPC devices, such as the iPad.

(3) Portable entertainment devices: These devices can display and play multimedia content. Such devices include: audio, video players (such as iPod), handheld game consoles, e-books, and smart toys and portable vehicles. Navigation device.

(4) Server: A device that provides computing services. The server consists of a processor, a hard disk, a memory, a system bus, etc. The server is similar to a general-purpose computer architecture, but because of the need to provide highly reliable services, processing power and stability High reliability in terms of reliability, security, scalability, and manageability.

(5) Other electronic devices with data interaction functions.

The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located A place, or it can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

Through the description of the above embodiments, those skilled in the art can clearly understand that the various embodiments can be implemented by means of software plus a general hardware platform, and of course, by hardware. Based on such understanding, the above technical solutions may be embodied in the form of software products in essence or in the form of software products, which may be stored in a computer readable storage medium such as a ROM/RAM or a disk. , an optical disk, etc., includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments or portions of the embodiments.

The electronic device in the embodiment of the present application receives a data packet sent between the first transmission channel and the second transmission channel connected to the transmitting device by using a pre-stored instruction in the processor of the electronic device, and first stores the data according to the number. Whether there is the same data in the space, if not stored, if any, discard, so the data is selected very well, because the same data is transmitted through two transmission channels, even if one of the transmission channels is interfered, It is also possible to obtain data from the second transmission channel, preventing data loss and facilitating the correct transmission of data.

Finally, it should be noted that the above embodiments are only used to explain the technical solutions of the present application, and are not limited thereto; although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced by the equivalents. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (10)

A data transmission method, comprising: Generating a first transport data packet and a second transport data packet, wherein the first transport data packet and the second transport data packet include the same data content; Transmitting, by the first transmission channel, a first transmission data packet to the receiving device; Transmitting a second transport packet to the receiving device over the second transport channel. The method of claim 1 wherein said first transport channel and said second transport channel are in different frequency bands. The method according to claim 1 or 2, wherein the encoding manner of the data content in the first transport data packet is different from the encoding manner of the data content in the second transport data packet. The method according to any one of claims 1 to 3, wherein the method further comprises: The receiving device determines an earliest received data packet among the first transport data packet and the second transport data packet; The receiving device processes the earliest received data packet. A data transmission method, comprising: Receiving, by the first transmission channel and the second transmission channel, a data packet sent by the transmitting device; Parsing the data packet to determine whether the data packet is correct; Determining the data packet received for the first time if the data packet is correct; The data packet received for the first time is processed. The method of claim 5, wherein the receiving device further comprises: If the data packet is incorrect, the data packet is discarded. A data transmission system, comprising: a transmitting device: The sending device includes: a generating module, configured to generate a first transport data packet and a second transport data packet, where the first transport data packet and the second transport data packet include the same data content; And a sending module, configured to send, by using the first transport channel, a first transport data packet to the receiving device, where the second transport channel sends the second transport data packet to the receiving device. The data transmission system according to claim 7, comprising receiving means: The receiving device includes: a determining module, configured to determine, by the receiving device, an earliest received data packet among the first transport data packet and the second transport data packet; And a processing module, configured to: the receiving device processes the first received data packet. A receiving device, further comprising: a receiving module, configured to receive, by using the first transport channel or the second transport channel, a data packet sent by the sending device; a parsing module, configured to parse the first transport data packet or the second transport data packet; a determining module, configured to determine whether the first transport data packet or the second transport data packet is correct; Determining a module, if the data packet is correct, determining the data packet received for the first time; And a processing module, configured to process the data packet received for the first time. The receiving device according to claim 9, further comprising: And discarding the module, if the first transport data packet or the second transport data packet is incorrect, discarding the data packet.

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