WO2023123991A1

WO2023123991A1 - Data transmission method and apparatus, electronic device, and storage medium

Info

Publication number: WO2023123991A1
Application number: PCT/CN2022/103672
Authority: WO
Inventors: 周朝四
Original assignee: 深圳市广和通无线股份有限公司
Priority date: 2021-12-29
Filing date: 2022-07-04
Publication date: 2023-07-06
Also published as: CN114500668A

Abstract

A data transmission method. The method comprises: sending a request message to a second terminal, the request message carrying a compression identifier (step 210); receiving a response message returned by the second terminal on the basis of the request message, the response message being used for indicating that the second terminal received the compression identifier (step 220); and performing data transmission message interaction with the second terminal according to the compression identifier, the data transmission message carrying compressed data, and the compressed data being obtained by any one among a first terminal and the second terminal compressing original data (step 230).

Description

Data transmission method, device, electronic device and storage medium

This application claims the priority of the Chinese patent application with the application number 202111641236.X and the title of the invention "data transmission method, device, electronic equipment and storage medium" submitted to the China Patent Office on December 29, 2021, the entire content of which is passed References are incorporated in this application.

technical field

The present application relates to the technical field of data communication, and in particular to a data transmission method, device, electronic equipment and storage medium.

Background technique

With the development of data communication technology, how to ensure the real-time performance of data transmission is becoming more and more important.

At present, when data is transmitted between different terminals, complete data is transmitted through a specific communication protocol. However, when the network resources are seriously occupied or the network bandwidth is low, the problem of high data transmission delay is likely to exist.

Contents of the invention

Based on this, it is necessary to provide a data transmission method, device, electronic device and storage medium capable of improving the real-time performance of data transmission for the above technical problems.

In a first aspect, the present application provides a data transmission method applied to a first terminal, and the method includes:

Send a request message to the second terminal, where the request message carries a compression identifier;

receiving a response message fed back by the second terminal based on the request message, where the response message is used to indicate that the second terminal has received the compression identifier;

According to the compression identifier, interact with the second terminal on the data transmission message, the data transmission message carries compressed data, and the compressed data is obtained by compressing the original data by any one of the first terminal and the second terminal.

In a second aspect, the present application provides a data transmission method, which is applied to a second terminal, and the method includes:

receiving a request message sent by the first terminal, where the request message carries a compression identifier;

Feedback a response message to the first terminal based on the request message, where the response message is used to indicate that the second terminal has received the compressed identifier;

According to the compression identifier, the data transmission message is interacted with the first terminal. The data transmission message carries compressed data, and the compressed data is obtained by compressing the original data by any one of the first terminal and the second terminal.

In a third aspect, the present application provides a data transmission device, which is applied to a first terminal, and the device includes:

The first sending module is configured to send a request message to the second terminal, where the request message carries a compression identifier;

The first receiving module is configured to receive a response message fed back by the second terminal based on the request message, where the response message is used to indicate that the second terminal has received the compressed identifier;

The first data interaction module is configured to interact with the second terminal on the data transmission message according to the compression identifier, the data transmission message carries compressed data, and the compressed data is performed on the original data by any one of the first terminal and the second terminal get compressed.

In a fourth aspect, the present application provides a data transmission device, which is applied to a second terminal, and the device includes:

The second receiving module is configured to receive a request message sent by the first terminal, where the request message carries a compression identifier;

The second sending module is configured to feed back a response message to the first terminal based on the request message, and the response message is used to indicate that the second terminal has received the compressed identifier;

The second data interaction module is configured to interact with the first terminal on the data transmission message according to the compression identifier. The data transmission message carries compressed data, and the compressed data is obtained by compressing the original data by the first terminal or the second terminal.

In a fifth aspect, the present application provides an electronic device, including a memory and one or more processors, the memory stores computer-readable instructions, and the one or more processors execute the computer-readable instructions to implement the steps of the above method.

In a sixth aspect, the present application provides a computer-readable storage medium, on which computer-readable instructions are stored, and when the computer-readable instructions are executed by one or more processors, the steps of the above method are implemented.

In a seventh aspect, the present application provides a computer program product, including computer readable instructions, which implement the steps of the above method when executed by one or more processors.

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features, objects and advantages of the present application will be apparent from the description, drawings and claims.

Description of drawings

In order to better describe and illustrate embodiments and or examples of the inventions disclosed herein, reference is made to one or more of the following drawings. The accompanying specification or examples used to describe the drawings should not be considered limiting of the scope of any of the disclosed inventions, the presently described embodiments and or examples, and the best mode of these inventions currently understood.

Fig. 1 is a schematic diagram of an application environment of a data transmission method in an embodiment;

Fig. 2 is a schematic flow chart of a data transmission method in an embodiment;

Fig. 3 is a schematic diagram of the packet format of the connection request of the MQTT protocol in an embodiment;

Fig. 4 is a schematic diagram of the communication flow of the MQTT protocol in an embodiment;

FIG. 5 is a schematic flow diagram of a data transmission method in another embodiment;

Fig. 6 is a schematic flow chart of a data transmission method in another embodiment;

FIG. 7 is a schematic structural diagram of a data transmission device in an embodiment;

FIG. 8 is a schematic structural diagram of a data transmission device in an embodiment;

Fig. 9 is a schematic diagram of the internal structure of an electronic device in one embodiment.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

Referring to FIG. 1 , FIG. 1 is a schematic diagram of an application environment of a data transmission method in an embodiment. The data transmission method provided in the embodiment of the present application may be applied in the application environment shown in FIG. 1 . Wherein, the first terminal 110 and the second terminal 120 perform data transmission through a specific communication protocol.

Exemplarily, the first terminal 110 and the second terminal 120 are transmitted through MQTT (Message Queuing Telemetry Transport) protocol. MQTT is a client-server based message publish/subscribe transport protocol. The MQTT protocol is lightweight, simple, open and easy to implement. These characteristics make it widely applicable. In many cases, including constrained environments such as machine-to-machine (M2M) communication and the Internet of Things (IoT). It is used extensively in sensors communicating via satellite links, medical devices that occasionally dial, smart homes, and some miniaturized devices. In the case that the first terminal 110 and the second terminal 120 transmit data through the MQTT protocol, the party that sends the data from the first terminal 110 and the second terminal 120 fills the data into the PUBLISH (release) message and sends it. It can be understood that the publish message A message may be an implementation of a data transmission message. The PUBLISH message filled with data is sent to the party receiving the data from the first terminal 110 and the second terminal 120 .

It should be noted that, when the first terminal 110 and the second terminal 120 are connected through the MQTT protocol, the first terminal 110 may be regarded as a device end, and the second terminal 120 may be regarded as a server end.

Among them, the first terminal 110 and the second terminal 120 can be, but not limited to, personal computers, notebook computers, smart phones, tablet computers, Internet of Things devices and portable wearable devices, and the Internet of Things devices can be smart speakers, smart TVs, smart air conditioners , Smart vehicle equipment, etc. Portable wearable devices can be smart watches, smart bracelets, head-mounted devices, and the like.

Referring to FIG. 2 , FIG. 2 is a schematic flowchart of a data transmission method in an embodiment. In one embodiment, as shown in FIG. 2 , a data transmission method is provided. The method is applied to the first terminal in FIG. 1 as an example for illustration, including steps 210 to 230 .

Step 210: Send a request message to the second terminal, where the request message carries a compression identifier.

Wherein, the request message is sent by the first terminal to the second terminal. The compression identifier refers to the identifier carried in the request message, and the compression identifier is used to indicate that the subsequent data transmission messages that the second terminal interacts with the first terminal carry compressed data.

In some embodiments, the data transfer message may be a publication message.

Step 220: Receive a response message fed back by the second terminal based on the request message, where the response message is used to indicate that the second terminal has received the compressed identifier.

Wherein, the response message refers to that generated by the second terminal based on the request message. In this embodiment, the first terminal receives the response message fed back by the second terminal based on the request message, and the response message is used to indicate that the second terminal has received the compressed identifier, so that the first terminal can ensure that the second terminal receives to the compression flag, and then interact with the compressed data.

Step 230: According to the compression identifier, interact with the second terminal on the data transmission message, the data transmission message carries compressed data, and the compressed data is obtained by compressing the original data by any one of the first terminal and the second terminal .

In this embodiment, the interaction between the first terminal and the second terminal for data transmission messages may be that the first terminal sends a data transmission message to the second terminal, or that the first terminal receives a data transmission message sent by the second terminal. The message is determined by the result of interaction with the actual message, which is not limited in this embodiment. Specifically, if the first terminal sends a data transmission message to the second terminal, the compressed data is obtained by compressing the original data by the first terminal; if the first terminal receives the data transmission message sent by the second terminal. Then the compressed data is obtained by compressing the original data by the second terminal. In this embodiment, the data transmission message carries compressed data, so the data size of the data transmission message is lower.

In the technical solution of this embodiment, after the first terminal sends a request message to the second terminal, in the subsequent data transmission message exchanged between the first terminal and the second terminal, the data carried in the data transmission message is all compressed data, and The data size of the compressed data must be lower. Therefore, even if the network resources are seriously occupied or the network bandwidth is low, the data can be transmitted in a timely manner, avoiding the problem of excessive data transmission delay. , realizing the technical effect of improving the real-time performance of data transmission. In addition, after the first terminal sends a request message to the second terminal, the subsequent data exchange between the first terminal and the second terminal is a data transmission message carrying compressed data, that is, sending a request message once can realize the communication between the first terminal and the second terminal. The second terminals all perform the exchange of compressed data, and do not need to send a request message every time the compressed data is compressed, which improves the efficiency and simplicity of compressed data transmission.

In a possible implementation manner, the data transmission message includes at least one of a first data transmission message and a second data transmission message, and the first data transmission message is a data transmission message sent by the first terminal to the second terminal. The second data transmission message is a data transmission message sent by the second terminal to the first terminal, and the data transmission message interaction with the second terminal includes:

In the case of sending the first data transmission message to the second terminal, the first terminal compresses the first original data to obtain the first compressed data, and fills the first compressed data into the first data transmission message, and sending the filled first data transmission message to the second terminal;

In the case of receiving the second data transmission message sent by the second terminal, the first terminal acquires the second compressed data carried in the second data transmission message, and decompresses the second compressed data to obtain the second original data .

In this embodiment, the first data transmission packet carries the first compressed data. The second data transmission message carries the second compressed data. Specifically, it may be only the first compressed data sent by the first terminal to the second terminal, or it may be the second compressed data sent by the second terminal to the first terminal. Wherein, the first compressed data refers to data obtained after the first terminal compresses the first original data. The first original data refers to data that needs to be sent but has not been compressed. The second compressed data refers to data obtained after the second terminal compresses the second original data. The second original data refers to data that needs to be sent but has not been compressed.

It should be noted that, when the first terminal sends the first data transmission message to the second terminal, the first terminal compresses the first original data to obtain the first compressed data, and fills the first compressed data into the second A data transmission message, so that the first data transmission message carrying the first compressed data is sent to the second terminal. When the first terminal receives the second data transmission message sent by the second terminal, the first terminal extracts the second compressed data from the second data transmission message, and decompresses the second compressed data to obtain the second original data.

Optionally, the first terminal and the second terminal confirm the latest request message each time they send data or receive data, and if the latest request message carries a compression identifier, perform a decompression operation.

In a possible implementation manner, sending the request message to the second terminal includes:

The first terminal confirms whether a preset condition for exchanging compressed data with the second terminal is met;

If the preset condition is met, the request message is sent to the second terminal.

In this embodiment, the first terminal confirms whether the preset condition for exchanging compressed data with the second terminal is met, and if so, compresses the exchanged data, thereby sending a request message to the second terminal, so that the first terminal The data that is subsequently interacted with the second terminal is compressed data, thereby improving the timeliness of data transmission.

In a possible implementation manner, meeting the preset conditions includes at least one of the following:

The first terminal responds to the setting operation of setting the compressed data by the user;

The first terminal transmits data through the SIM card.

In this embodiment, it may be that the user sets the first terminal to the compressed data mode, and the first terminal sends a request message to the second terminal in response to the user's setting operation of setting the compressed data. In addition, generally, the first terminal may transmit data to the second terminal through a WiFi network or a SIM card. However, when the first terminal transmits data through the SIM card, since the usage traffic of the SIM card is limited, when the first terminal prepares to transmit data through the SIM card, it sends a request message to the second terminal, and the subsequent The data transmitted through the SIM card is compressed data, which can reduce the traffic consumption of the SIM card.

In a possible implementation manner, the first terminal and the second terminal perform data interaction through the MQTT protocol. Optionally, the request message is a connection request message sent when the first terminal establishes a connection with the second terminal. In this embodiment, if the request message is a connection request message, the compression identifier is configured in the connection flag field of the connection request.

It should be noted that, if the request packet is a connection request packet, the response packet is a connection response packet.

It can be understood that the request message is a connection request message sent when the first terminal establishes a connection with the second terminal, which is equivalent to that the first terminal sends the compressed identifier to the second terminal during the process of establishing the connection with the second terminal. Then, after the connection between the first terminal and the second terminal is established, the data exchanged are all compressed data.

As shown in FIG. 3 , FIG. 3 is a schematic diagram of a data packet format of a connection request of the MQTT protocol in an embodiment. As shown in Figure 3, the compression flag is configured in the connection flag field (Connect Flags) of the connection request. Generally, since the connection flag field does not have a substantial effect in the connection request, this embodiment uses the connection flag of the multiplex connection request field, there is no need to change the data packet format of the request message, only need to configure the compression field in the connection flag field, which reduces the complexity of sending the request message to the second terminal. Optionally, the compression flag can be "0" or "1". Exemplarily, if the compression flag is "1", then the value of the connection flag field is 0, which means no compression, and the value of the connection flag field, which is 1, means compression.

Referring to FIG. 4 , FIG. 4 is a schematic diagram of a communication flow of the MQTT protocol in an embodiment. As shown in Figure 1, after the first terminal sends a request message to the second terminal, one of the first terminal and the second terminal that sends the PUBLISH message needs to compress the data before sending the PUBLISH message, then The party receiving the PUBLISH message needs to obtain the compressed data from the received PUBLISH message, and then decompress the compressed data.

In a possible implementation manner, performing compression processing on the first original data to obtain the first compressed data includes:

calling a preset compression algorithm by the first terminal;

The first original data is compressed by a preset compression algorithm to obtain the first compressed data.

Wherein, the preset compression algorithm may be a pre-configured compression algorithm. Optionally, there may be one or more preset compression algorithms. In this embodiment, if the first original data to be transmitted needs to be compressed, the first original data is compressed by using a preset compression algorithm.

It should be noted that, if there is one preset compression algorithm, the first terminal compresses the first original data by using a fixed preset compression algorithm. Optionally, the preset compression algorithm may be an LZMA compression algorithm. Advantages of LZMA compression algorithm: high compression ratio; small decompression code: about 5KB; only a small amount of memory is needed for decompression (depending on the dictionary size); the dictionary size can be changed (up to 4GB); compression speed: processing in a 2GHz Running on a server, it can reach a speed of about 1MB per second; decompression speed: running on a 2GHz processor, it can reach a speed of about 10-20MB per second; supports multi-threading, multi-core (multi-processor) and Hyper-Threading of the Pentium 4 processor; the above characteristics make the LZMA algorithm very suitable for embedded system applications.

Correspondingly, in a possible implementation manner, decompressing the second compressed data to obtain the second original data includes:

calling a preset decompression algorithm by the first terminal;

The second original data is obtained by decompressing the second compressed data through a preset decompression algorithm.

Wherein, the preset decompression algorithm may be a pre-configured decompression algorithm. Optionally, there may be one or more preset decompression algorithms. Generally, the number of preset decompression algorithms is the same as the number of preset compression algorithms. In this embodiment, when the received second compressed data needs to be decompressed, the second compressed data is compressed by using a preset decompression algorithm.

It should be noted that, if there is one preset decompression algorithm, the first terminal decompresses the second compressed data by using a fixed preset decompression algorithm. Optionally, the preset decompression algorithm may be an LZMA decompression algorithm.

In a possible implementation manner, there are multiple preset compression algorithms, the request message also carries a compression algorithm identifier, and the preset compression algorithm is called, and the first original data is compressed by the preset compression algorithm to obtain the first compressed data, include:

The first terminal invokes a target compression algorithm corresponding to the compression algorithm identifier, where the target compression algorithm is one of multiple preset compression algorithms;

The first original data is compressed by the target compression algorithm to obtain the first compressed data.

Wherein, the compression algorithm identifier is used to indicate which preset compression algorithm among multiple preset compression algorithms is used for data compression. Optionally, the multiple preset compression algorithms include but are not limited to at least two of LZMA compression algorithm, LZ4 compression algorithm, Huffman compression algorithm, run-length coding algorithm, and the like.

It should be noted that the first terminal sends the request message carrying the compression algorithm identifier to the second terminal, and after receiving the response message, the party that sends data between the first terminal and the second terminal first queries the latest request message file, so that the data is compressed through the target compression algorithm corresponding to the target compression algorithm identifier; wherein, the target compression algorithm identifier is the compression algorithm identifier in the latest request message.

In a possible implementation manner, the compression algorithm identifier is determined according to the data type of the data to be interacted with. Optionally, the data type is used to represent the type of the first original data. Exemplarily, the data type includes but not limited to video data and voice data. The compression algorithm identifier is obtained according to the data type of the first original data. In other words, the compression algorithm identifier corresponds to the data type of the first original data. Exemplarily, assuming that multiple preset compression algorithms include the LZMA compression algorithm and the LZ4 compression algorithm, then in fields other than the field where the compression identifier is located, "0" indicates the LZMA compression algorithm, and "1" indicates the LZ4 compression algorithm.

Optionally, for video data, its data volume is relatively large, so a compression algorithm with a higher compression rate can be used to compress, so as to reduce the data volume of video data as much as possible; for voice data, its data volume Smaller, so the compression algorithm with high compression speed can be used to complete the compression as fast as possible, thereby increasing the compression rate of voice data and further improving the real-time performance of data transmission.

Correspondingly, in a possible implementation manner, there are multiple preset decompression algorithms, and the request message also carries a decompression algorithm identifier, and the preset decompression algorithm is called, and the second compressed data is decompressed by the preset decompression algorithm to obtain the second compressed data. 2. Raw data, including:

The first terminal invokes a target decompression algorithm corresponding to the decompression algorithm identifier, where the target decompression algorithm is one of multiple preset decompression algorithms;

The second compressed data is decompressed by the target decompression algorithm to obtain the second original data.

Wherein, the decompression algorithm identifier is also used to indicate which preset decompression algorithm among the multiple preset decompression algorithms performs data decompression. Optionally, the multiple preset decompression algorithms include but are not limited to at least two of LZMA decompression algorithm, LZ4 decompression algorithm, Huffman decompression algorithm, run-length decoding algorithm, and the like.

In a possible implementation manner, the decompression algorithm identifier is determined according to the data type of the data to be interacted with, and corresponds to the compression algorithm identifier.

It should be noted that after the first terminal sends the request message carrying the decompression algorithm identifier to the second terminal, the party receiving the data from the first terminal and the second terminal first queries the latest request message, so as to pass the target decompression algorithm The corresponding target decompression algorithm is identified to decompress the data, wherein the target decompression algorithm identification is the decompression algorithm identification in the latest request message.

In this embodiment, when sending the request message to the second terminal, the first terminal sends the compression algorithm identifier and the decompression algorithm identifier to the second terminal together. In the process of exchanging data between the first terminal and the second terminal, the party that sends data between the first terminal and the second terminal compresses the transmitted data by using a target compression algorithm corresponding to the compression algorithm identifier. The first terminal and the second terminal receiving the data decompress the compressed data by using the target decompression algorithm identified by the decompression algorithm to restore the data. Optionally, the first terminal identifies the data type of the first original data, and obtains the decompression algorithm identification and compression algorithm identification corresponding to the data type, so as to fill the decompression algorithm identification and compression algorithm identification into the request message, so as to carry the The decompression algorithm identification and the request message of the compression algorithm identification are sent to the second terminal.

It can be understood that in this embodiment, when the first terminal sends a request message to the second terminal, the compression algorithm identifier and the decompression algorithm identifier are sent to the second terminal together, and the compression algorithm identifier and the decompression algorithm identifier are based on The data type of the interactive data is determined, so different algorithms may be used for decompression processing according to the data type of the first original data.

Generally, the compression algorithm and the decompression algorithm are corresponding, so the decompression algorithm identification and the compression algorithm identification are an algorithm identification, and the corresponding target compression algorithm or target decompression algorithm can be determined through an algorithm identification.

It can be understood that by using the decompression algorithm identification and the compression algorithm identification as an algorithm identification, when changing the data packet format of the request message, the complexity of changing the data packet format can be reduced, and the number of acquisition target compression algorithms or target decompression algorithms can be reduced. The complexity of the algorithm.

Referring to FIG. 5 , FIG. 5 is a schematic flowchart of a data transmission method in another embodiment. In one embodiment, as shown in FIG. 5 , a data transmission method is provided, which is described by taking the method applied to the second terminal in FIG. 1 as an example, including steps 510 to 530 .

Step 510: Receive a request message sent by the first terminal, where the request message carries a compression identifier.

Step 520: Feedback a response message to the first terminal based on the request message, where the feedback response message is used to indicate that the second terminal has received the compression identifier.

Step 530: According to the compression identifier, interact with the first terminal in the data transmission message, the data transmission message carries compressed data, and the compressed data is obtained by compressing the original data by any one of the second terminals in the first terminal.

In the case of receiving the first data transmission message sent by the first terminal, the second terminal obtains the first compressed data carried in the first data transmission message, and decompresses the first compressed data to obtain the first original data;

In the case of sending the second data transmission message to the first terminal, the second terminal compresses the second original data to obtain the second compressed data, and fills the second compressed data into the second data transmission message, and the sending the filled second data transmission message to the first terminal;

In a possible implementation manner, the step of the second terminal compressing the second original data to be transmitted to obtain the second compressed data includes:

calling a preset compression algorithm by the second terminal;

The second original data is compressed by a preset compression algorithm to obtain second compressed data.

In a possible implementation, there are multiple preset compression algorithms, and the second terminal invokes the preset compression algorithm to compress the second original data through the preset compression algorithm to obtain the second compressed data, including:

The second terminal invokes a target compression algorithm corresponding to the compression algorithm identifier, where the target compression algorithm is one of multiple preset compression algorithms;

The second original data is compressed by using a target compression algorithm to obtain second compressed data.

In a possible implementation manner, the second terminal decompresses the first compressed data to obtain the first original data, including:

The second terminal invokes a preset decompression algorithm;

The first original data is obtained by decompressing the first compressed data through a preset decompression algorithm.

In a possible implementation, there are multiple preset decompression algorithms, and the second terminal invokes the preset decompression algorithm, and decompresses the first compressed data through the preset decompression algorithm to obtain the first original data, including:

The second terminal invokes a target decompression algorithm corresponding to the decompression algorithm identifier, where the target decompression algorithm is one of multiple preset decompression algorithms;

Decompressing the first compressed data by using the target decompression algorithm to obtain the first original data.

Referring to FIG. 6 , FIG. 6 is a schematic flowchart of a data transmission method in another embodiment. In one embodiment, as shown in FIG. 6 , a data transmission method is provided, and the method is applied to the first terminal and the second terminal in FIG. 1 as an example for illustration. The data transmission method in this embodiment includes step 610 to step 650 .

Step 610, the first terminal sends a request message to the second terminal, and the request message carries a compression identifier.

In this embodiment, optionally, the first terminal may send the compression identifier to the second terminal during the process of establishing a connection with the second terminal, and after the connection is established, both the first terminal and the second terminal Interact with compressed data. In this embodiment, the first terminal may send the connection request message to the second terminal as a request message.

Step 620, the second terminal receives the request message sent by the first terminal.

Step 630, the second terminal responds to the request message, generates a response message, and feeds back the response message to the first terminal.

Step 640, the first terminal receives the response message fed back by the second terminal.

In this embodiment, after the first terminal receives the response message fed back by the second terminal, the first terminal may consider that the second terminal has received the compression identifier, and may subsequently interact with compressed data.

Step 650, the first terminal and the second terminal perform data transmission message interaction according to the compression identifier, and the data transmission message carries compressed data.

It should be understood that although the steps in the flow charts involved in the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in the flow charts involved in the above embodiments may include multiple steps or stages, and these steps or stages are not necessarily executed at the same time, but may be executed at different times, The execution order of these steps or stages is not necessarily performed sequentially, but may be executed in turn or alternately with other steps or at least a part of steps or stages in other steps.

Based on the same inventive concept, an embodiment of the present application further provides a data transmission device for implementing the above-mentioned data transmission method. The solution to the problem provided by the device is similar to the implementation described in the above method, so the specific limitations in one or more embodiments of the data transmission device provided below can refer to the definition of the data transmission method above, in This will not be repeated here.

Referring to FIG. 7, FIG. 7 is a schematic structural diagram of a data transmission device in an embodiment. In one embodiment, as shown in FIG. 7 , a data transmission device is provided. The device is applied to the first terminal in FIG. 1 as an example, including a first sending module 710, a first receiving module 720 and The first data interaction module 730, wherein:

The first sending module 710 is configured to send a request message to the second terminal, and the request message carries a compression identifier; the first receiving module 720 is configured to receive a response message fed back by the second terminal based on the request message, and the response message It is used to indicate that the second terminal has received the compressed identifier; the first data interaction module 730 is configured to interact with the second terminal on the data transmission message according to the compressed identifier, the data transmission message carries compressed data, and the compressed data is sent by the first The terminal or the second terminal compresses the original data to obtain it.

In one embodiment, the first sending module 710 is specifically configured to confirm whether a preset condition for exchanging compressed data with the second terminal is met; if the preset condition is met, send a request message to the second terminal.

In one embodiment, meeting the preset conditions includes at least one of the following:

The first terminal responds to the setting operation of setting the compressed data by the user; the first terminal transmits the data through the SIM card.

In one of the embodiments, the compression identifier is configured in the connection flag field of the connection request message.

In one of the embodiments, the data transmission message includes at least one of a first data transmission message and a second data transmission message, and the first data transmission message is a data transmission message sent by the first terminal to the second terminal , the second data transmission message is a data transmission message sent by the second terminal to the first terminal, and the first data interaction module 730 is specifically used for:

In the case of sending the first data transmission message to the second terminal, performing compression processing on the first original data to obtain the first compressed data, filling the first compressed data into the first data transmission message and sending it to the second terminal ; When receiving the second data transmission message sent by the second terminal, obtain the second compressed data carried in the second data transmission message, and decompress the second compressed data to obtain the second original data.

In one of the embodiments, the first data interaction module 730 includes:

A first compression algorithm calling unit, configured to call a preset compression algorithm;

The first compression unit is configured to compress the first original data through a preset compression algorithm to obtain first compressed data.

In one embodiment, there are multiple preset compression algorithms, and the request message also carries a compression algorithm identifier, which is determined according to the data type of the interactive data, and the first compression unit is specifically used to call and compress the algorithm A corresponding target compression algorithm is identified, and the target compression algorithm is one of a plurality of preset compression algorithms; the first original data is compressed by the target compression algorithm to obtain the first compressed data.

In one of the embodiments, the first data interaction module 730 includes:

The first decompression algorithm calling unit is used to call the preset decompression algorithm;

The first decompression unit is configured to decompress the second compressed data through a preset decompression algorithm to obtain second original data.

In one embodiment, there are multiple preset decompression algorithms, and the request message also carries a decompression identifier, and the first decompression unit is specifically used to call a target decompression algorithm corresponding to the decompression algorithm identifier, and the target decompression algorithm is multiple preset One of the decompression algorithms; decompressing the second compressed data through the target decompression algorithm to obtain the second original data.

Referring to FIG. 8 , FIG. 8 is a schematic structural diagram of a data transmission device in an embodiment. In one embodiment, as shown in FIG. 8 , a data transmission device is provided. The device is applied to the second terminal in FIG. 1 as an example for illustration, including a second receiving module 810, a second sending module 820 and The second data interaction module 830, wherein:

The second receiving module 810 is configured to receive a request message sent by the first terminal, and the request message carries a compression identifier; the second sending module 820 is configured to feed back a response message to the first terminal based on the request message, and feed back the response message The text is used to indicate that the second terminal has received the compressed identifier; the second data interaction module 830 is configured to interact with the first terminal on the data transmission message according to the compressed identifier, the data transmission message carries compressed data, and the compressed data is sent by the first terminal The first terminal or the second terminal compresses the original data.

In one embodiment, the second data interaction module 830 includes: a second compression algorithm calling unit, configured to call a preset compression algorithm; a second compression unit, configured to compress the second original data through the preset compression algorithm to obtain the first Two compressed data.

In one embodiment, there are multiple preset compression algorithms, and the second compression algorithm unit is specifically used to call a target compression algorithm corresponding to the compression algorithm identifier, and the target compression algorithm is one of multiple preset compression algorithms; The algorithm compresses the second original data to obtain the second compressed data.

In one embodiment, the second data interaction module 830 includes: a second decompression algorithm calling unit, configured to call a preset decompression algorithm; a second decompression unit, configured to decompress the first compressed data through the preset decompression algorithm to obtain first raw data.

In one embodiment, there are multiple preset decompression algorithms, and the second decompression unit is specifically used to call the target decompression algorithm corresponding to the decompression algorithm identification, and the target decompression algorithm is one of the multiple preset decompression algorithms; through the target decompression algorithm Decompressing the first compressed data to obtain the first original data.

Each module in the above-mentioned data transmission device may be fully or partially realized by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of one or more processors in the computer device in the form of hardware, and can also be stored in the memory of the computer device in the form of software, so that one or more processors can call and execute the above The operation corresponding to the module.

In one embodiment, an electronic device is provided, including a memory and one or more processors, computer-readable instructions are stored in the memory, and the above-mentioned methods are implemented when the one or more processors execute the computer-readable instructions steps in the example.

Referring to FIG. 9 , FIG. 9 is a schematic diagram of an internal structure of an electronic device in an embodiment. As shown in FIG. 9, the electronic device includes one or more processors, memory, communication interface, display screen and input device connected through a system bus. Wherein, the processor of the electronic device is used to provide calculation and control capabilities. The memory of the electronic device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and computer readable instructions. The internal memory provides an environment for the execution of the operating system and computer readable instructions in the non-volatile storage medium. The communication interface of the electronic device is used for wired or wireless communication with external electronic devices, and the wireless method can be realized through WIFI, mobile cellular network, NFC (Near Field Communication) or other technologies. The computer readable instructions implement a data transmission method when executed by one or more processors. The display screen of the electronic device may be a liquid crystal display screen or an electronic ink display screen, and the input device of the electronic device may be a touch layer covered on the display screen, or a button, a trackball or a touch pad provided on the housing of the electronic device , and can also be an external keyboard, touchpad, or mouse. Optionally, both the first terminal and the second terminal in this embodiment are electronic devices.

Those skilled in the art can understand that the structure shown in FIG. 9 is only a block diagram of a part of the structure related to the solution of this application, and does not constitute a limitation on the electronic equipment to which the solution of this application is applied. The specific electronic equipment can be More or fewer components than shown in the figures may be included, or some components may be combined, or have a different arrangement of components.

Those skilled in the art can understand that the electronic device can be a wireless communication module, or a smart device including a wireless communication module (such as a smart car, a smart cabinet, a smart meter, etc.), or a communication device such as a mobile phone, a computer, or a tablet. .

In one embodiment, a computer-readable storage medium is provided, on which computer-readable instructions are stored, and when the computer-readable instructions are executed by one or more processors, the steps in the foregoing method embodiments are implemented.

In one embodiment, a data transmission system is also provided, including a first terminal and a second terminal. For the steps performed by the first terminal and the second terminal, reference may be made to the description of any of the foregoing embodiments, and details are not described in this embodiment.

In one embodiment, a computer program product is also provided, including computer readable instructions, which implement the steps of the above method when executed by one or more processors.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above-mentioned embodiments can be completed by instructing related hardware through computer-readable instructions, and the computer-readable instructions can be stored in a non-volatile computer-readable When the computer-readable instructions are executed, the computer-readable instructions may include the processes of the embodiments of the above-mentioned methods. Wherein, any reference to storage, database or other media used in the various embodiments provided in the present application may include at least one of non-volatile and volatile storage. Non-volatile memory can include read-only memory (Read-Only Memory, ROM), tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive variable memory (ReRAM), magnetic variable memory (Magnetoresistive Random Access Memory, MRAM), Ferroelectric Random Access Memory (FRAM), Phase Change Memory (Phase Change Memory, PCM), graphene memory, etc. The volatile memory may include random access memory (Random Access Memory, RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the various embodiments provided in this application may include at least one of a relational database and a non-relational database. The non-relational database may include a blockchain-based distributed database, etc., but is not limited thereto. The processors involved in the various embodiments provided by this application may be general-purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, compressed data processing logic devices based on quantum computing, etc. limited to this.

The technical features of the above embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be within the range described in this specification.

The above examples only express several implementation modes of the present application, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be determined by the appended claims.

Claims

A data transmission method applied to a first terminal, the method comprising:

sending a request message to the second terminal, the request message carrying a compression identifier;

receiving a response message fed back by the second terminal based on the request message, where the response message is used to indicate that the second terminal has received the compression identifier;

According to the compression identifier, interact with the second terminal in a data transmission message, the data transmission message carries compressed data, and the compressed data is sent by any one of the first terminal and the second terminal obtained by compressing the original data.
According to the method according to claim 1, the interaction of the data transmission message with the second terminal specifically includes:

In the case of sending the first data transmission message to the second terminal, performing compression processing on the first original data to obtain first compressed data, and filling the first compressed data into the first data transmission message sending the filled first data transmission message to the second terminal.
The method according to claim 2, said compressing the first original data to the first compressed data, comprising:

Call the preset compression algorithm;

The first compressed data is obtained by compressing the first original data by using the preset compression algorithm.
According to the method according to claim 3, there are multiple preset compression algorithms, and the request message also carries a compression algorithm identifier,

The calling preset compression algorithm includes:

calling a target compression algorithm corresponding to the compression algorithm identifier from a plurality of preset compression algorithms;

The compressing the first original data through the preset compression algorithm to obtain the first compressed data includes:

Compressing the first original data by using the target compression algorithm to obtain the first compressed data.
According to the method according to claim 1, the interaction of the data transmission message with the second terminal specifically includes:

In the case of receiving the second data transmission message sent by the second terminal, obtain the second compressed data carried in the second data transmission message, and decompress the second compressed data to obtain the second Raw data.
The method according to claim 5,

The decompressing the second compressed data to obtain the second original data includes:

Call the preset decompression algorithm;

Decompressing the second compressed data through the preset decompression algorithm to obtain the second original data.
The method of claim 6,

There are multiple preset decompression algorithms, and the request message also carries a decompression algorithm identifier;

The calling preset decompression algorithm includes:

calling a target decompression algorithm corresponding to the decompression algorithm identifier from a plurality of preset decompression algorithms;

The decompressing the second compressed data through the preset decompression algorithm to obtain the second original data includes:

Decompressing the second compressed data by using the target decompression algorithm to obtain the second original data.
According to the method according to any one of claims 1-7, the request message includes at least one of the following:

A connection request message sent when the first terminal establishes a connection with the second terminal;

A message sent by the first terminal after establishing a connection with the second terminal.
According to the method according to claim 8, the compression identifier is configured in the connection flag field of the connection request message.
A data transmission method applied to a second terminal, the method comprising:

receiving a request message sent by the first terminal, where the request message carries a compression identifier;

Feedback a response message to the first terminal based on the request message, where the response message is used to indicate that the second terminal has received the compression identifier;

According to the compression identifier, interact with the first terminal in a data transmission message, the data transmission message carries compressed data, and the compressed data is sent by any of the first terminal and the second terminal One is obtained by compressing the original data.
A data transmission device applied to a first terminal, the device comprising:

The first sending module is configured to send a request message to the second terminal, the request message carrying a compression identifier;

A first receiving module, configured to receive a response message fed back by the second terminal based on the request message, where the response message is used to indicate that the second terminal has received the compression identifier;

The first data interaction module is configured to interact with the second terminal with a data transmission message according to the compression identifier, the data transmission message carries compressed data, and the compressed data is shared by the first terminal and the second terminal. Any one of the second terminals compresses the original data.
An electronic device comprising a memory and one or more processors, the memory stores computer-readable instructions, and the one or more processors implement any one of claims 1 to 10 when executing the computer-readable instructions The steps of the method described in the item.
One or more computer-readable storage media, on which computer-readable instructions are stored, and when the computer-readable instructions are executed by one or more processors, the steps of the method according to any one of claims 1 to 10 are implemented .