CN114051006A

CN114051006A - Data transmission method, data transmission device, computer equipment and storage medium

Info

Publication number: CN114051006A
Application number: CN202111304124.5A
Authority: CN
Inventors: 夏春秋
Original assignee: Shenzhen Vision Technology Co Ltd
Current assignee: Shenzhen Vision Technology Co Ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-02-15

Abstract

The embodiment of the application belongs to the field of data processing, and relates to a data sending method, which comprises the following steps: acquiring preset data and a preset source trace signal; polynomial coding preset data and a preset source trace signal to obtain a plurality of groups of coded data; splitting preset data into a plurality of messages; merging each message and each corresponding coded data to obtain multi-combination data; acquiring preset header data; combining the synthesized data and preset header data to obtain data to be encrypted; encrypting data to be encrypted to obtain encrypted data; coding the encrypted data according to a preset rule and a preset sequence to obtain data to be spread; modulating the spread spectrum data to obtain a pulse signal; and sending a pulse signal to send preset data. The application also provides a data sending device, computer equipment and a storage medium. The safety of data transmission is improved.

Description

Data transmission method, data transmission device, computer equipment and storage medium

Technical Field

The present application relates to the field of signal processing, and in particular, to a data transmission method, an apparatus, a computer device, and a storage medium.

Background

The Link16 data chain was developed by the united states and equips troops' cross-platform data chains. The current communication carrier of Link16 is Joint Tactical Distribution System (JTIDS). JTIDS is divided into a plurality of different terminals, each of which includes a data processing unit, an interface unit, a data security unit, a transmitter receiver, a power amplifier unit, an antenna, etc. Link16 consists of the TDMA protocol, Link16 waveform and TADILJ message standard. And there are networking modes such as single network, stacked network, multi-network, independent multi-network, and the like. In LINK16, a message packaging system with better confidentiality is not provided.

Disclosure of Invention

An embodiment of the present application aims to provide a data transmission method, an apparatus, a computer device, and a storage medium, which improve security of data transmission.

In order to solve the above technical problem, an embodiment of the present application provides a data transmission method, which adopts the following technical solutions:

acquiring preset data and a preset source trace signal;

polynomial coding the preset data and the preset source trace signal to obtain a plurality of groups of coded data;

splitting the preset data into a plurality of messages;

combining each message and each corresponding coded data to obtain multiple groups of synthetic data;

acquiring preset header data;

combining the synthetic data and the preset header data to obtain data to be encrypted;

encrypting the data to be encrypted to obtain encrypted data;

coding the encrypted data according to a preset rule and a preset sequence to obtain data to be spread;

modulating the data with spread spectrum to obtain a pulse signal;

and sending the pulse signal to send the preset data.

Further, the preset header data at least includes: type code, packing structure, data bit size, RS code, and message type.

Further, the preset data is composed of at least one message word, and the message word at least includes: an initial word, an extended word, and a continuation word.

Further, after the step of sending the pulse signal to send the preset data, the method further includes:

and sending message data, wherein the message data at least comprises at least one of a fixed format message, a variable format message, a free text message and a round-trip format message.

Further, before the step of sending the message data, the step of sending the message data at least including at least one of a fixed format message, a variable format message, a free text message, and a round-trip format message further includes:

and adding coarse synchronization head data and fine synchronization head data between the message data and the header data.

after the pulse signal is sent, returning a 32-bit 2-system number;

if the ith bit is 1, determining that the (i + 1) th sending step is normal, wherein i is an integer which is more than or equal to 0 and less than 32;

if the ith bit is 0, determining that the (i + 1) th sending step has abnormality.

and if the transmission fails, combining error information, transmission information and the 2-system digit according to a preset format to generate a notification.

In order to solve the above technical problem, an embodiment of the present application further provides a data sending apparatus, which adopts the following technical solutions:

the acquisition module is used for acquiring preset data and a preset source trace signal;

the first coding module is used for polynomial coding the preset data and the preset source track signal to obtain a plurality of groups of coded data;

the splitting module is used for splitting the preset data into a plurality of messages;

the message merging module is used for merging each message and each corresponding coded data to obtain multi-combination data;

the header data acquisition module is used for acquiring preset header data;

the data merging module is used for merging the synthetic data and the preset header data to obtain data to be encrypted;

the encryption module is used for encrypting the data to be encrypted to obtain encrypted data;

the second coding module is used for coding the encrypted data according to a preset rule and a preset sequence to obtain data to be spread;

the modulation module is used for modulating the data with spread spectrum to obtain a pulse signal;

and the sending module is used for sending the pulse signal so as to send the preset data.

Further, the transformation module is further configured to:

by passing

Calculating the plurality of wavelet coefficients, wherein f (t) is a time series,

and b is a scale factor and a translation factor of the wave base.

Further, the signal transmission device further includes a message module, and the message module is further configured to:

Further, the signal transmission device further includes a step module, and the step module is further configured to:

Further, the signal sending apparatus further includes a detection module, and the detection module is further configured to:

after the pulse signal is sent, returning a 32-bit 2-system number;

and if the transmission fails, combining error information, transmission information and the 2-golden index according to a preset format to generate a notification.

In order to solve the above technical problem, an embodiment of the present application further provides a computer device, which adopts the following technical solutions:

a computer device comprising at least one coupled processor, a memory, and an input/output unit, wherein the memory is configured to store computer-readable instructions, and the processor is configured to call the computer-readable instructions in the memory to perform the steps of the data transmission method.

In order to solve the above technical problem, an embodiment of the present application further provides a computer-readable storage medium, which adopts the following technical solutions:

a computer readable storage medium having computer readable instructions stored thereon which, when executed by a processor, implement the steps of the data transmission method described above.

Compared with the prior art, the embodiment of the application mainly has the following beneficial effects:

the data security is increased through multiple encoding and encryption, and the header data and the message data are used for indicating the content of the related information, so that the data transmission security is further improved.

Drawings

In order to more clearly illustrate the solution of the present application, a brief description will be given below of the drawings required for use in the description of the embodiments of the present application, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.

FIG. 1 is an exemplary system architecture diagram in which the present application may be applied;

FIG. 2-1 is a flow diagram of one embodiment of a method of data transmission according to the present application;

fig. 2-2 is a schematic diagram of a header trailer according to an embodiment of a data transmission method of the present application;

FIGS. 2-3 are schematic diagrams of a double pulse of one embodiment of a data transmission method according to the present application;

FIGS. 2-4 are data transmission diagrams according to one embodiment of a data transmission method of the present application;

FIG. 3 is a schematic block diagram of one embodiment of a data transmission apparatus according to the present application;

FIG. 4 is a schematic block diagram of one embodiment of a computer device according to the present application.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

As shown in fig. 1, the system architecture 100 may include

terminal devices

101, 102, 103, a network 104, and a server 105. The network 104 is used to provide a medium for communication links between the

terminal devices

101, 102, 103 and the server 105. Network 104 may include various connection types, such as wired, wireless communication links, or fiber optic cables, to name a few.

The user may use the

terminal devices

101, 102, 103 to interact with the server 105 via the network 104 to receive or send messages or the like. The

terminal devices

101, 102, 103 may have various communication client applications installed thereon, such as a web browser application, a shopping application, a search application, an instant messaging tool, a mailbox client, social platform software, and the like.

The

terminal devices

101, 102, 103 may be various electronic devices having a display screen and supporting web browsing, including but not limited to smart phones, tablet computers, e-book readers, MP3 players (Moving Picture Experts Group Audio Layer III, motion Picture Experts compression standard Audio Layer 3), MP4 players (Moving Picture Experts Group Audio Layer IV, motion Picture Experts compression standard Audio Layer 4), laptop portable computers, desktop computers, and the like.

The server 105 may be a server providing various services, such as a background server providing support for pages displayed on the

terminal devices

101, 102, 103.

It should be noted that the data transmission method provided in the embodiments of the present application is generally executed by a server/terminal device, and accordingly, the data transmission apparatus is generally disposed in the server/terminal device.

It should be understood that the number of terminal devices, networks, and servers in fig. 1 is merely illustrative. There may be any number of terminal devices, networks, and servers, as desired for implementation.

With continued reference to FIG. 2-1, a flow diagram for one embodiment of a method of data transmission is shown, in accordance with the present application. The data sending method comprises the following steps:

step 201, acquiring preset data and a preset source trace signal.

In this embodiment, the preset data may be 210-bit data selected from the buffer, and the preset source trace signal is 15-bit data.

Step 202, polynomial coding the preset data and the preset source trace signal to obtain a plurality of groups of coded data.

In this embodiment, the data is combined with a 15bit source track number and then encoded with a (237, 235) polynomial. The 12-bit data generated by coding is evenly divided into 3 groups according to sequence, and a spare bit is added behind each group of data, so that each group contains 5 bits. The 5-bit code value consists of a 1-bit start word and a 4-bit check word. Resulting in 3 sets of encoded data. The polynomial code is calculated by using code elements with specified lengths, and a CRC code is formed after a check code is obtained and added to an original information code. After receiving the message, the receiving end separates the information code from the check code and calculates the check code again. And verifying the correctness of the received information code by comparing the new check code with the received verification code. The computation of the check code generator polynomial in the SLEW signal is accomplished using a feedback shift register, and after encoding as in fig. 2-2, the header and data segments are expanded to 45 bits and 60 bits, respectively.

Step 203, splitting the preset data into a plurality of messages.

In this embodiment, the data is composed of 3 sets of 70bit Link16 message words.

And 204, merging each message and each corresponding coded data to obtain multi-combination data.

In this embodiment, a 70bit message word and a 5bit block of encoded data are combined into 75bit data.

In step 205, preset header data is obtained.

In the present embodiment, the header data is 35-bit data. Bits 4-18 of the 35bit header are 15 bits of tracking number.

And step 206, combining the synthetic data and the preset header data to obtain data to be encrypted.

In the present embodiment, the data includes 35+75x3 ═ 260 bit.

And step 207, encrypting the data to be encrypted to obtain encrypted data.

In this embodiment, any encryption algorithm may be adopted, and may be a DES algorithm, a 3DES algorithm, and a DESX algorithm, which are not limited in this application.

And 208, coding the encrypted data according to a preset rule and a preset sequence to obtain data to be spread.

In this embodiment, every 5 bits are mapped into an integer symbol in the data transmission order for RS encoding, the data in the header portion is (16, 7) RS encoded, and 9 symbols are added to the header data after encoding. The message part is RS encoded (31, 15) and 16 symbols will be supplemented after each message segment after the encoding is completed. A frame of data now contains 109 symbols. And transmitting the transmission data after disordering the transmission data according to a specific rule. It is also possible to add a fine time synchronization and a coarse time synchronization, wherein the fine synchronization and the coarse synchronization consist of 16 symbols and 4 symbols, respectively.

Step 209, modulate the spread spectrum data to obtain a pulse signal.

In the present embodiment, CCSK spread spectrum processing. A new sequence of transmit chips is obtained by cyclically shifting the spreading chips, where the number of cyclically shifted bits is controlled by the integer symbols. And performing bitwise XOR on a pseudo-random chip with the length of 32 bits and the CCSK chip to finish the code word encryption.

And step 210, sending the pulse signal to send the preset data.

In this embodiment, the chips obtained after spreading are GMSK modulated to obtain a pulse signal. And moving the baseband signal to a target frequency point, wherein the frequency point is not fixed, and the transmission of the encryption key and the network number jointly determine the frequency hopping frequency. Finally, the data is transmitted from the antenna in the form of double pulses, which are shown in fig. 2-3.

In this embodiment, as shown in fig. 2 to 4, the security of data is increased by encoding and encrypting for multiple times, and the header data and the message data are used to indicate the content of the related information, so as to further improve the security of data transmission.

In some optional implementations, the preset header data includes at least: type code, packing structure, data bit size, RS encoding, and message type.

In the above embodiment, the header data is composed of 16 double-pulse characters. The function is to tell the receiving system the format and parsing method of the message, which is the specification of the message. The packing method used by the transmitted message can be analyzed through the header, so that the subsequent correct analysis can be carried out. The format of the header word is shown in the tables, and the meaning represented by each field and the description of the header field are shown in the tables below.

In some optional implementations, the preset data is composed of at least one message word, and the message word at least includes: an initial word, an extended word, and a continuation word.

In the above-described embodiments of the present invention,

in some optional implementations, the step of sending the pulse signal to send the preset data further includes, after the step of sending the pulse signal, that:

In the above embodiment, the transmitted message is composed of a single or several message words, and the message words can be divided into three formats, i.e. initial word, extended word and continuation word. The original word format contains 75 bits of data in total, and the last 5 bits perform the parity check function, with the 70 th bit being the spare bit. The 10 th to 12 th bit data are used to define the number of message words (excluding the initial word) contained in the message, and since this field consists of only 3 bits, the transmitted message can contain 8 message words at most. The function of this message is jointly determined by the 2 nd to 6 th Link16 identifiers and the 7 th to 9 th Link16 sub identifiers. The Link16 sub-identifier and the Link16 sub-identifier respectively occupy 5 bits and 3 bits, the binary data of 5 bits and 3 bits are converted into decimal numbers which are respectively marked as m (0-31) and n (0-7), then (m, n) are randomly combined to obtain 256 results, and the message is marked as Jn.m to be used as the message identifier.

The transmission of the extended word is a sequential transmission mode. For example, the system sends 3 extension words, the serial numbers of the extension words are extension word number 1, extension word number 2 and extension word number 3, wherein the priority of the extension word number 1 is the highest, the priority of the extension word number 2 is the second, and the priority of the extension word number 3 is the lowest, and the sending sequence is 1-2-3. If extension word No. 1 is not sent, then extension word No. 2 and extension word No. 3 need wait, and only extension word No. 3 can be sent repeatedly. The word format of the extended word is '10', and is recorded as 'E', the x-th currently sent extended word is marked by a letter x, and then the extended word of the message can be recorded as Jn.

And the continuous word is sent after the sending of the extension word is finished, so that the sending of the supplementary message is realized. The first two bits are used as word format, the last 5 bits are used as parity check, the 2 nd bit to the 6 th bit are used as identification mark of continuous word as identification field, the length is 5 bits, 32 results can be defined, therefore, a message can define 0-32 continuous words. The transmission mode of the continuation word may be in-order transmission or out-of-order transmission, and is specifically defined by the system. The word format of the continuation word is "01", which is denoted as "C", and the x-th continuation word currently sent is identified by the letter x, so that the continuation word of the message can be denoted as jn.

In some optional implementations, the sending the message data, where the message data at least includes at least one of a fixed format message, a variable format message, a free text message, and a round-trip format message further includes:

In the above embodiment, the coarse synchronization header includes 16 double-pulse characters, and each character is also modulated by a 32-bit pseudo-random sequence, so that the pulse of each character consists of 32 chips. It is necessary to select a suitable pseudo-random sequence according to the application, the requirement for the sequence in the synchronization signal is low, and for a 32-bit binary number, 232 different values coexist, but not every value can be used as the pseudo-random sequence. Some of them should be selected for use. As pseudo-random sequences several requirements need to be fulfilled, the most important of which is that the cross-correlation between the sequence sets needs to be strong. The selected pseudo-random signals are sent to the SDU module for encryption when being sent, and the non-interception performance of the pseudo-random signals is guaranteed. Each NPG has a unique sequence corresponding to it, and only terminals with the same NPG can use the correct pseudo-random sequence for decoding to obtain the correct message. Devices between different NPGs cannot decode the original information due to sequence inconsistency. The fine synchronization header consists of 4 dipulse characters, modulated with a 32-bit cyclic shift (CCSK) pseudorandom sequence 01111100111010010000101011101100.

after the pulse signal is sent, returning a 32-bit 2-system number;

In the above embodiment, for example, the 0 th bit of the 2 nd digit represents whether the first transmission step is successful. After the whole process is executed, returning a 32-bit 2-system number to indicate the execution state of each step, if the 0 th bit is 1, the translation of the first step is successful, if the 0 th bit is 0, the first step is failed, and judging whether each step is successfully transmitted or not by the method

In the above embodiment, if the transmission fails, the notification is generated by combining the error information, the transmission information, and the 2-ary number in a preset format. The preset format is used for indicating the format of the abnormal notification; when the exception step is determined, an exception notification may be generated based on the exception step, the exception information, and the exception data to notify the developer based on the exception notification. For example, if the script detects that the code line number 110 has an undefined A variable, the variable flag information is 32768, and if the fixed format is error X flag information, namely X exception information exists in the X line code line number, the exception information reminds that the error 32768 exists, namely the undefined A variable in the 110 line is undefined.

The block chain referred by the application is a novel application mode of computer technologies such as distributed data storage, point-to-point transmission, a consensus mechanism, an encryption algorithm and the like. A block chain (Blockchain), which is essentially a decentralized database, is a series of data blocks associated by using a cryptographic method, and each data block contains information of a batch of network transactions, which is used for verifying the validity (anti-counterfeiting) of the information and generating a next block. The blockchain may include a blockchain underlying platform, a platform product service layer, an application service layer, and the like.

It will be understood by those skilled in the art that all or part of the processes for implementing the methods of the embodiments described above may be implemented by associated hardware as instructions of computer readable instructions, which may be stored in a computer readable storage medium, and when executed, may include processes of the embodiments of the methods described above. The storage medium may be a non-volatile storage medium such as a magnetic disk, an optical disk, a Read-Only Memory (ROM), or a Random Access Memory (RAM).

It should be understood that, although the steps in the flowcharts of the figures are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or in turns with other steps or at least a portion of the sub-steps or stages of other steps.

With further reference to fig. 3, as an implementation of the method shown in fig. 2-1, the present application provides an embodiment of a data transmission apparatus, which corresponds to the method embodiment shown in fig. 2, and which can be applied to various electronic devices.

As shown in fig. 3, the data transmission device 300 according to the present embodiment includes: an acquiring module 301, a first encoding module 302, a splitting module 303, a message merging module 304, a header data acquiring module 305, a data merging module 306, an encrypting module 307, a second encoding module 308, a modulating module 309 and a sending module 310. Wherein:

an obtaining module 301, configured to obtain preset data and a preset source trace signal;

a first encoding module 302, configured to polynomial encode the preset data and the preset source trace signal to obtain multiple groups of encoded data;

a splitting module 303, configured to split the preset data into multiple messages;

a message merging module 304, configured to merge each message and each corresponding encoded data to obtain multiple combined data;

a header data acquiring module 305 for acquiring preset header data;

a data merging module 306, configured to merge the synthesized data and the preset header data to obtain data to be encrypted;

an encrypting module 307, configured to encrypt the data to be encrypted to obtain encrypted data;

a second encoding module 308, configured to encode the encrypted data according to a preset rule and a preset sequence to obtain data to be spread;

a modulation module 309, configured to modulate the data with spread spectrum to obtain a pulse signal;

a sending module 310, configured to send the pulse signal to send the preset data.

Further, the transformation module is further configured to:

by passing

and b is a scale factor and a translation factor of the wave base.

after the pulse signal is sent, returning a 32-bit 2-system number;

In order to solve the technical problem, an embodiment of the present application further provides a computer device. Referring to fig. 4, fig. 4 is a block diagram of a basic structure of a computer device according to the present embodiment.

The computer device 4 comprises a memory 41, a processor 42, a network interface 43 communicatively connected to each other via a system bus. It is noted that only computer device 4 having components 41-43 is shown, but it is understood that not all of the shown components are required to be implemented, and that more or fewer components may be implemented instead. As will be understood by those skilled in the art, the computer device is a device capable of automatically performing numerical calculation and/or information processing according to instructions set or stored in advance, and the hardware includes, but is not limited to, a microprocessor, an Application Specific Integrated Circuit (ASIC), a Programmable Gate Array (FPGA), a Digital Signal Processor (DSP), an embedded device, and the like.

The computer device can be a desktop computer, a notebook, a palm computer, a cloud server and other computing devices. The computer equipment can carry out man-machine interaction with a user through a keyboard, a mouse, a remote controller, a touch panel or voice control equipment and the like.

The memory 41 includes at least one type of readable storage medium including a flash memory, a hard disk, a multimedia card, a card type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a Read Only Memory (ROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a Programmable Read Only Memory (PROM), a magnetic memory, a magnetic disk, an optical disk, etc. In some embodiments, the memory 41 may be an internal storage unit of the computer device 4, such as a hard disk or a memory of the computer device 4. In other embodiments, the memory 41 may also be an external storage device of the computer device 4, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, provided on the computer device 6. Of course, the memory 41 may also include both internal and external storage devices of the computer device 4. In this embodiment, the memory 41 is generally used for storing an operating system and various application software installed on the computer device 4, such as computer readable instructions of a data transmission method. Further, the memory 41 may also be used to temporarily store various types of data that have been output or are to be output.

The processor 42 may be a Central Processing Unit (CPU), controller, microcontroller, microprocessor, or other data Processing chip in some embodiments. The processor 42 is typically used to control the overall operation of the computer device 4. In this embodiment, the processor 42 is configured to execute computer readable instructions stored in the memory 41 or process data, for example, execute computer readable instructions of the data transmission method.

The network interface 43 may comprise a wireless network interface or a wired network interface, and the network interface 43 is generally used for establishing communication connection between the computer device 4 and other electronic devices.

The present application further provides another embodiment, which is to provide a computer-readable storage medium storing computer-readable instructions executable by at least one processor to cause the at least one processor to perform the steps of the data transmission method as described above.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that the present application may be practiced without these specific details or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims

1. A data transmission method, comprising the steps of:

acquiring preset data and a preset source trace signal;

splitting the preset data into a plurality of messages;

merging each message and each corresponding coded data to obtain multi-combination data;

acquiring preset header data;

encrypting the data to be encrypted to obtain encrypted data;

modulating the data with spread spectrum to obtain a pulse signal;

and sending the pulse signal to send the preset data.

2. The data transmission method according to claim 1, wherein the preset header data at least comprises: type code, packing structure, data bit size, RS encoding, and message type.

3. The data transmission method according to claim 1, wherein the preset data is composed of at least one message word, and the message word at least includes: an initial word, an extended word, and a continuation word.

4. The data transmission method according to claim 1, wherein the step of transmitting the pulse signal to transmit the preset data further comprises:

5. The data transmission method according to claim 4, wherein the step of transmitting the message data, the message data at least comprising at least one of a fixed format message, a variable format message, a free body message, and a round-trip format message is preceded by the step of:

6. The data transmission method according to any one of claims 1 to 5, wherein the step of transmitting the pulse signal to transmit the preset data further comprises:

after the pulse signal is sent, returning a 32-bit 2-system number;

7. The method according to claim 6, wherein the step of sending the pulse signal to send the preset data further comprises:

and if the transmission fails, combining error information, transmission information and the 2-system number according to a preset format to generate a notification.

8. A data transmission apparatus, comprising:

the first encoding module is used for polynomial encoding the preset data and the preset source trace signal to obtain a plurality of groups of encoded data;

the header data acquisition module is used for acquiring preset header data;

9. A computer device comprising a memory having computer readable instructions stored therein and a processor which when executed implements the steps of the data transmission method of any one of claims 1 to 7.

10. A computer-readable storage medium, having computer-readable instructions stored thereon, which, when executed by a processor, implement the steps of the data transmission method according to any one of claims 1 to 7.