WO2021115142A1 - Serial data encoding method and apparatus, and embedded device and communication system - Google Patents

Abstract

A serial data encoding method and apparatus, and an embedded device and a communication system. The serial data encoding method comprises: acquiring serial data, the serial data comprising at least one message format section (S10); converting serial data of a target message format section into serial encoded data of a preset system (S20); determining whether the serial encoded data is less than or equal to a first preset numerical value of the preset system (S30); if so, summating the serial encoded data and a second preset numerical value of the preset system to obtain encoded transmission data such that the encoded transmission data does not include character type data (S40); and if not, splitting the serial encoded data into first split data and second split data that are less than or equal to the first preset numerical value, and summating the first split data and the second preset numerical value of the preset system and summating the second split data and the second preset numerical value of the preset system respectively to obtain first split encoded transmission data and second split encoded transmission data such that the first split encoded transmission data and the second split encoded transmission data do not include character type data (S50). The method improves the reliability of device communication.

Description

Serial data coding method, device, embedded equipment and communication system Technical field

The present invention relates to the field of coding communication, in particular to a serial data coding method, device, embedded device and communication system.

Background technique

When the serial port data sent by the source device is communication data, its content includes Linux debugging command messages. This part of the message will be intercepted by the bottom layer of the destination device, making the serial port data reaching the application layer of the destination device incomplete, resulting in abnormal device communication.

Summary of the invention

The embodiments of the present invention aim to provide a serial port data encoding method, device, embedded device, and communication system, which can improve the reliability of device communication.

To solve the above technical problems, the embodiments of the present invention provide the following technical solutions:

In the first aspect, an embodiment of the present invention provides a serial port data encoding method, including:

Acquiring serial port data, where the serial port data includes at least one message format segment;

Convert the serial port data of the target message format segment to the preset serial port code data;

Judging whether the serial port coded data is less than or equal to the first preset value of the preset base;

If yes, add the serial port coded data to the second preset value of the preset base to obtain coded transmission data, so that the coded transmission data does not include character data;

If not, split the serial port coded data into first split data and second split data, and both the first split data and the second split data are less than or equal to the first preset Values, respectively adding the first split data and the second split data to the second preset value of the preset number to obtain the first split coded transmission data and the second split coded transmission data, Therefore, neither the first split-coded transmission data and the second split-coded transmission data include character data.

In some embodiments, when the preset base is hexadecimal, the converting the serial port data of the target message format segment into the serial encoded data of the preset base includes:

Use the BCD code to encode the serial port data in the target message format section;

The encoded serial port coded data is converted into hexadecimal serial port coded data.

In some embodiments, the message format segment includes a frame header segment, a message instruction segment, a source device segment, a destination device segment, a frame sequence number segment, a content length segment, a content segment, and a check code segment; the target message The format segment includes a message instruction segment, a source device segment, a destination device segment, a frame sequence number segment, a content length segment, a content segment, and a check code segment.

In some embodiments, the first preset value is 0x9999, and the second preset value is 0x30.

In some embodiments, adding the serial port coded data to the second preset value of the preset base to obtain the coded transmission data, so that the coded transmission data does not include character data, includes:

Each byte of the serial port coded data is respectively added with hexadecimal 0x30 to obtain coded transmission data, so that the coded transmission data does not include character data.

In some embodiments, the method further includes:

The encoded transmission data is sent through the serial port.

In some embodiments, the first splitting data and the second splitting data are respectively added to the second preset value of the preset base to obtain the first splitting coded transmission data and the second splitting data. Split-encoded transmission data so that neither the first split-coded transmission data nor the second split-coded transmission data contains character-type data, including:

Add hexadecimal 0x30 to each byte of the first split data and the second split data to obtain the first split coded transmission data and the second split coded transmission data, so that the Neither the first split-coded transmission data nor the second split-coded transmission data contains character data.

In some embodiments, the method further includes:

The first split-coded transmission data and the second split-coded transmission data are sent through a serial port.

In the second aspect, an embodiment of the present invention provides a serial port data encoding device, including:

An acquisition module for acquiring serial port data, where the serial port data includes at least one message format segment;

The conversion module is used to convert the serial port data of the target message format segment into the preset serial port code data;

A judging module, configured to judge whether the serial port coded data is less than or equal to the first preset value of the preset base;

The first encoding module is configured to add the serial port encoding data to the second preset value of the preset base if the serial port encoding data is less than or equal to the first preset value of the preset base Obtain coded transmission data, so that the coded transmission data does not contain character data;

The second encoding module is configured to split the serial port encoding data into the first split data and the second split data if the serial port encoding data is greater than the first preset value of the preset base. The first split data and the second split data are both less than or equal to the first preset value, and the first split data and the second split data are added to the preset value respectively. To obtain the first split-coded transmission data and the second split-coded transmission data, so that the first split-coded transmission data and the second split-coded transmission data do not contain character type data.

In some embodiments, the device further includes:

The first sending module is used to send the encoded transmission data through the serial port.

In some embodiments, the device further includes:

The second sending module sends the first split-coded transmission data and the second split-coded transmission data through the serial port.

In the third aspect, an embodiment of the present invention provides an embedded device, including:

At least one processor; and,

A memory communicatively connected with the at least one processor; wherein,

The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute the method as described above.

In a fourth aspect, an embodiment of the present invention provides a communication system, including:

At least two embedded devices as described above;

The upper computer communicates with the embedded device.

In a fifth aspect, embodiments of the present invention also provide a non-volatile computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the above The method described.

The beneficial effects of the embodiments of the present invention are: different from the prior art, the serial data encoding method, device, embedded device, and communication system provided by the embodiments of the present invention can change the target message format by acquiring the serial port data. The serial port data of the segment is converted into the serial code data of the preset hexadecimal, and it is judged whether the serial code data is less than or equal to the first preset value of the preset hexadecimal. If so, the serial code data is added to the second of the preset hexadecimal The preset value is used to obtain the coded transmission data so that the coded transmission data does not contain character data. If not, the serial port coded data is split into the first split data and the second split data, the first split data and the second split data The split data is less than or equal to the first preset value, and the first split data and the second split data are respectively added to the second preset value of the preset base to obtain the first split coded transmission data and the second split data. Split-coded transmission data, so that neither the first split-coded transmission data nor the second split-coded transmission data contains character-type data. Therefore, in the embodiment of the present invention, the encoded transmission data, the first split-coded transmission data, and the second split-coded transmission data do not contain character data, so that the serial port data reaching the application layer of the target device is complete, and the device communication is improved. Reliability.

In addition, by judging whether the serial port coded data is less than or equal to the first preset value of the preset base, if it is, the serial port coded data is added to the second preset value of the preset base to obtain the encoded transmission data, if not, then Split the serial port encoding data into the first split data and the second split data. The first split data and the second split data are both less than or equal to the first preset value, and the first split data and the second split data are respectively The split data plus the second preset value of the preset hexadecimal number to obtain the first split-coded transmission data and the second split-coded transmission data, thereby limiting the encoded transmission data, the first split-coded transmission data, and the second split-coded transmission data. The size of the encoded transmission data is divided to avoid data overflow, so that the serial port data reaching the application layer of the destination device is correct, and the reliability of device communication is further improved.

Description of the drawings

One or more embodiments are exemplified by the pictures in the corresponding drawings. These exemplified descriptions do not constitute a limitation on the embodiments. The elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the attached drawings do not constitute a scale limitation.

FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present invention;

2 is a schematic flowchart of a serial data encoding method provided by an embodiment of the present invention;

3 is a schematic flowchart of a method for encoding serial port data according to another embodiment of the present invention;

4 is a schematic diagram of a serial data encoding device provided by an embodiment of the present invention;

Fig. 5 is a device schematic diagram of a serial data encoding device provided by another embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

An embodiment of the present invention provides an embedded device that includes at least one processor and a memory communicatively connected to the at least one processor, wherein the memory stores the memory that can be executed by the at least one processor The instructions are executed by the at least one processor, so that the at least one processor can execute the serial data encoding method described in the following method embodiments.

It can be understood that the embedded device refers to a device or device including an embedded system. An embedded system is a special computer system that is embedded in a controlled device and designed for a specific application. It is used to control, monitor or assist equipment, machinery or equipment used in factory operations. Unlike general-purpose computer systems such as personal computers, embedded systems usually perform predefined tasks with specific requirements.

Among them, an embedded operating system runs on the embedded system. The embedded operating system is a kind of system software with a wide range of uses, which usually includes hardware-related underlying driver software, system kernel, device driver interface, communication protocol, graphical interface, standardized browser, and the like. The embedded operating system is responsible for the allocation of all software and hardware resources of the embedded system, task scheduling, control and coordination of concurrent activities. It must reflect the characteristics of the system where it is located, and be able to achieve the functions required by the embedded system by loading and unloading certain modules. Currently widely used operating systems in the embedded field include: embedded real-time operating systems C/OS-II, embedded Linux, Windows Embedded, VxWorks, etc., as well as Android, iOS, etc., which are used in smart phones and tablet computers.

Wherein, the processor and the memory may be connected by a bus or in other ways.

As a non-volatile computer-readable storage medium, the memory can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as those corresponding to the serial data encoding method in the embodiment of the present invention Program instructions/modules (for example, the various modules shown in Fig. 4 or Fig. 5). The processor executes the serial data encoding method described in the following method embodiments by running non-volatile software programs, instructions, and modules stored in the memory.

The memory may include a storage program area and a storage data area, where the storage program area can store an operating system and an application program required by at least one function; the storage data area can store the use of the serial data encoding device according to the following device embodiments The created data, etc. In addition, the memory may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some embodiments, the memory may optionally include a memory remotely arranged with respect to the processor, and these remote memories may be connected to the serial data encoding device via a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

The one or more modules are stored in the memory, and when executed by the one or more processors, the serial port data encoding method in any of the following method embodiments is executed, for example, the implementation of Figure 2 or Figure The method steps shown in 3 realize the functions of each module and each unit in FIG. 4 or FIG. 5.

The above-mentioned products can execute the methods provided in the embodiments of the present invention, and have corresponding functional modules and beneficial effects for executing the methods. For technical details that are not described in detail in this embodiment, refer to the method provided in the embodiment of the present invention.

The embodiment of the present invention provides an embedded device, which improves the reliability of device communication by executing the serial data encoding method in the following method embodiment.

Please refer to FIG. 1, which is a schematic structural diagram of a communication system according to an embodiment of the present invention. As shown in FIG. 1, the communication system 100 includes at least two embedded devices and a host computer 20 as described above, and the host computer 20 is in communication connection with the embedded device.

Taking two embedded devices as an example, the at least two embedded devices include embedded device A and embedded device B. Wherein, the embedded device A, the embedded device B, and the host computer 20 all include at least one serial port, and the serial port is used for device communication.

Further, taking the embedded device A as the destination device, the embedded device B as the source device, and the host computer 20 as the debugging device as an example, when the embedded device A and the embedded device B perform During data communication, the serial port function of the host computer 20 is prohibited, and the serial port of the embedded device A receives the serial port data sent by the embedded device B; when the host computer 20 debugs the embedded device A , Disable the serial port function of the embedded device B, and the serial port of the embedded device A receives the debugging instruction message sent by the host computer 20.

Specifically, when the embedded device A runs the embedded operating system, it means that the embedded device A starts the data communication function, and the serial port function of the host computer 20 is disabled; when the embedded device A receives all The debugging request of the host computer 20 triggers the prohibition of the serial port function of other embedded devices (the embedded device B), so that the embedded device A receives the debugging instruction message sent by the host computer 20. Therefore, by prohibiting the serial port functions of the other devices when the two devices are performing serial data communication, interference from the other devices is avoided, and the reliability of device communication is improved.

The embodiment of the present invention provides a communication system, which improves the reliability of device communication by running the serial port data encoding method in the following method embodiments in an embedded device.

Refer to Fig. 2, which is a schematic flowchart of a method for encoding serial port data according to an embodiment of the present invention. As shown in Figure 2, the serial data encoding method includes:

S10: Acquire serial port data, where the serial port data includes at least one message format segment.

As mentioned above, the serial data encoding method can be applied to any two embedded devices that communicate with each other. In some embodiments, before the obtaining the serial port data, the method further includes: receiving a communication request; returning a response message according to the communication request to establish a communication connection between the source device and the destination device; receiving a success response message, It is forbidden to receive communication requests from other devices. Therefore, it is ensured that in any communication process, there are only two communication equipment objects, and the interference of other equipment is avoided.

Wherein, the serial port data is the data to be sent from the embedded source device, and the message format segments of the serial port data include frame header segment, message instruction segment, source device segment, destination device segment, frame sequence number segment, content length segment, Content segment and check code segment.

Please refer to Table 1, which is one of the message formats of serial port data provided in this embodiment. As shown in Table 1, the frame header segment of the serial port data includes 1 byte, and the frame header is the start byte of the serial port data, starting with 0xFD; the message command segment of the serial port data includes 1 byte , The message instruction indicates what this frame of serial port data specifically does; the source device section of the serial port data includes 1 byte, the source device indicates the IP address of the source device of the serial port data; the destination device section of the serial port data Including 1 byte, the destination device indicates the IP address of the destination device of the serial port data; the frame sequence number field of the serial port data includes 1 byte, each time a frame of serial port data is sent, the frame sequence number is increased by 1, and is in 0x00- Circulate between 0xFF; the content length section of the serial port data includes 2 bytes, and the content length indicates the actual length of this frame of serial port data; the content section of the serial port data includes N bytes, where N≥1, the content indicates The data carried by the serial port data; the check code segment of the serial port data includes 1 byte, and the check code represents the checksum of all bytes of the serial port data from the start of the message instruction to the end of the content.

Table 1

It can be understood that the bytes from the message command to the check code are not fixed and are not limited to the specific byte length disclosed in Table 1. The message format of the serial port data is not limited to the specific message format disclosed in this embodiment, and can be changed according to the communication protocol on which the serial port data is based.

S20: Convert the serial port data of the target message format segment into the serial port coded data of the preset hexadecimal system.

When the preset base is hexadecimal, the converting the serial port data of the target message format segment into the serial code data of the preset base includes: using the BCD code to compare the serial port of the target message format segment The data is encoded; the encoded serial port coded data is converted into hexadecimal serial port coded data. The target message format segment includes a message instruction segment, a source device segment, a destination device segment, a frame sequence number segment, a content length segment, a content segment, and a check code segment.

Since the random combination of the message command and the check code may appear the debug message command, for example,'cd','mkdir','*#$&,/', etc., it is necessary to change the message command to the word in the check code. Section encoding, so that the serial data sent through the serial port does not include the character data contained in the debugging message command, so that the normal communication serial data is different from the debugging command message sent by the host computer, and avoiding part of the data in the serial data sent through the serial port. It is intercepted as a debugging command message, causing the problem of incomplete communication data.

S30: Determine whether the serial port coded data is less than or equal to the first preset value of the preset base.

S40: If yes, add the serial port coded data to the second preset value of the preset base to obtain the coded transmission data, so that the coded transmission data does not include character data.

Wherein, the first preset value is 0x9999, and the second preset value is 0x30.

The said adding the serial port coded data to the second preset value of the preset base to obtain the coded transmission data, so that the coded transmission data does not contain character data, includes: adding each part of the serial port coded data One byte is respectively added with hexadecimal 0x30 to obtain the coded transmission data, so that the coded transmission data does not include character data.

It can be understood that 0x00-0x2F in the content of the serial port coded data in hexadecimal notation, the corresponding ASCII code includes symbols such as space, carriage return, line feed,'*#$&,/', these are debugging command messages . If you directly add 0x30 on the basis of the original protocol, you can avoid these symbols, but if the data content is greater than 0xCF, after adding 0x30, it must be greater than 0xFF, causing data overflow and content errors. Therefore, before adding each byte of the serial port coded data to 0x30 in hexadecimal to obtain the coded transmission data, it is necessary to determine whether the serial port coded data is less than or equal to the first value of the preset number. The preset value, if the serial port coded data is less than or equal to the first preset value of the preset base, each byte of the serial port coded data after adding 0x30 in hexadecimal, will not exceed 0xFF, Then the encoded transmission data will not overflow and error, and the serial port data can be completely restored by decoding the encoded transmission data at the destination device.

For data that does not exceed 9999, the corresponding serial port coded data is less than 0x9999, add each byte of the serial port coded data to hexadecimal 0x30 to obtain the coded transmission data, and the range of the coded transmission data changes It becomes 0x30～0xc9c9, which avoids the ASCII code corresponding to data smaller than 0x30 and does not cause data overflow. The encoded transmission data after encoding is shown in Table 2.

Table 2

Please also refer to FIG. 3. In some embodiments, the encoded data is added to the second preset value of the preset base to obtain encoded transmission data, so that the encoded transmission data does not contain characters After the type data, the method further includes:

S60: Send the encoded transmission data through the serial port.

S50: If not, split the serial port coded data into first split data and second split data, and both the first split data and the second split data are less than or equal to the first split data. Preset values, respectively adding the first split data and the second split data to the second preset value of the preset number to obtain the first split coded transmission data and the second split coded transmission Data, so that neither the first split-coded transmission data and the second split-coded transmission data contain character-type data.

Adding the first split data and the second split data to the second preset value of the preset number to obtain the first split coded transmission data and the second split coded transmission data, So that neither the first split-coded transmission data and the second split-coded transmission data include character data, including: dividing each word of the first split data and the second split data Sections are added with hexadecimal 0x30 to obtain the first split-coded transmission data and the second split-coded transmission data, so that neither the first split-coded transmission data nor the second split-coded transmission data contains Character data.

In some embodiments, the first splitting data and the second splitting data are respectively added to the second preset value of the preset base to obtain the first splitting coded transmission data and the second splitting data. After splitting the encoded transmission data so that neither the first splitting encoded transmission data nor the second splitting encoded transmission data contains character data, the method further includes:

S70: Send the first split-coded transmission data and the second split-coded transmission data through the serial port.

It can be understood that after the destination device decodes the first split-coded transmission data and the second split-coded transmission data, the decoded first split-coded transmission data and the second split are combined. By encoding the transmission data, the serial port data can be completely restored.

The embodiment of the present invention provides a method for encoding serial port data. By acquiring serial port data, the serial port data of the target message format segment is converted into serial port encoding data of a preset base, and it is judged whether the serial port encoding data is less than or equal to the preset base. If yes, add the serial code data to the second preset value of the preset hexadecimal to obtain the coded transmission data, so that the coded transmission data does not contain character data, if not, the serial coded data Split into the first split data and the second split data, the first split data and the second split data are both less than or equal to the first preset value, and the first split data and the second split data are added respectively The second preset value of the above preset base is obtained to obtain the first split-coded transmission data and the second split-coded transmission data, so that neither the first split-coded transmission data and the second split-coded transmission data contain character types Therefore, the embodiment of the present invention makes the coded transmission data, the first split-coded transmission data, and the second split-coded transmission data not contain character data, so that the serial port data reaching the application layer of the destination device is complete and improves Reliability of equipment communication.

In addition, by judging whether the serial port coded data is less than or equal to the first preset value of the preset base, if it is, the serial port coded data is added to the second preset value of the preset base to obtain the encoded transmission data, if not, then Split the serial port encoding data into the first split data and the second split data. The first split data and the second split data are both less than or equal to the first preset value, and the first split data and the second split data are respectively divided into the first split data and the second split data. The split data plus the second preset value of the preset hexadecimal number to obtain the first split-coded transmission data and the second split-coded transmission data, thereby limiting the encoded transmission data, the first split-coded transmission data, and the second split-coded transmission data. The size of the encoded transmission data is divided to avoid data overflow, so that the serial port data reaching the application layer of the destination device is correct, and the reliability of device communication is further improved.

Please refer to FIG. 4, which is a schematic diagram of a serial port data encoding device provided by an embodiment of the present invention. As shown in FIG. 4, the serial data encoding device 400 includes an acquisition module 401, a conversion module 402, a judgment module 403, a first encoding module 404, and a second encoding module 405.

The acquiring module 401 is configured to acquire serial port data, and the serial port data includes at least one message format segment.

Wherein, the message format segment includes a frame header segment, a message instruction segment, a source device segment, a destination device segment, a frame sequence number segment, a content length segment, a content segment, and a check code segment.

The conversion module 402 is used to convert the serial port data of the target message format segment into serial port coded data with a preset hexadecimal system.

Wherein, the target message format segment includes a message instruction segment, a source device segment, a destination device segment, a frame sequence number segment, a content length segment, a content segment, and a check code segment.

Please also refer to FIG. 5, when the preset base is hexadecimal, the conversion module 402 includes a first encoding unit 4021 and a conversion unit 4022.

The first encoding unit 4021 is configured to use the BCD code to encode the serial port data in the target message format segment. The conversion unit 4022 is configured to convert the encoded serial port code data into hexadecimal serial port code data.

The judging module 403 is used to judge whether the serial port coded data is less than or equal to the first preset value of the preset base.

The first encoding module 404 is configured to add the serial code data to the second preset value of the preset base if the serial port encoding data is less than or equal to the first preset value of the preset base. Set the value to obtain the coded transmission data so that the coded transmission data does not contain character data.

Wherein, the first preset value is 0x9999, and the second preset value is 0x30.

The first encoding module 404 includes a second encoding unit 4041. The second encoding unit 4041 is used to add hexadecimal 0x30 to each byte of the serial port encoding data to obtain encoded transmission data, so that all The encoded transmission data does not contain character data.

The second encoding module 405 is configured to split the serial port encoding data into first split data and second split data if the serial port encoding data is greater than the first preset value of the preset base. , The first split data and the second split data are both less than or equal to the first preset value, and the first split data and the second split data are added to the preset value, respectively. Set the second preset value of the base to obtain the first split-coded transmission data and the second split-coded transmission data, so that neither the first split-coded transmission data nor the second split-coded transmission data contains Character data.

The second encoding module 405 includes a splitting unit 4051 and a third encoding unit 4052.

The splitting unit 4051 is configured to split the serial port coded data into first split data and second split data, and both the first split data and the second split data are less than or equal to the The first preset value.

The third encoding unit 4052 is configured to add hexadecimal 0x30 to each byte of the first split data and the second split data to obtain the first split encoded transmission data and the second split data. The transmission data is divided-encoded, so that neither the first divided-coded transmission data nor the second divided-coded transmission data contains character data.

Please refer to FIG. 5 again. The serial data encoding device 500 includes the serial data encoding device 400 described in the foregoing embodiment. For similarities, please refer to the foregoing embodiments, which will not be repeated here. The difference is that the serial data encoding device 500 further includes a first sending module 501 and a second sending module 502.

The first sending module 501 is configured to send the encoded transmission data through a serial port.

The second sending module 502 sends the first split-coded transmission data and the second split-coded transmission data through a serial port.

It is worth noting that the information interaction and execution process between the modules in the above-mentioned device are based on the same concept as the method embodiment of the present invention. For specific content, please refer to the description in the method embodiment of the present invention, and will not be omitted here. Go into details.

The embodiment of the present invention provides a serial port data encoding device. The serial port data is obtained through an acquisition module. The conversion module converts the serial port data of the target message format segment into a preset serial port encoding data. The judgment module determines whether the serial port encoding data is less than or It is equal to the first preset value of the preset base. If the serial port coded data is less than or equal to the first preset value of the preset base, the first encoding module adds the serial port coded data to the second preset of the preset base. Set the value to obtain the coded transmission data so that the coded transmission data does not contain character data. If the serial port coded data is greater than the first preset value of the preset base, the second coding module splits the serial port coded data into the first split data And the second split data, the first split data and the second split data are both less than or equal to the first preset value, and the first split data and the second split data are respectively added to the second The preset value obtains the first split-coded transmission data and the second split-coded transmission data, so that neither the first split-coded transmission data and the second split-coded transmission data contain character data. Therefore, the embodiments of the present invention improve the reliability of device communication.

The embodiment of the present invention provides a non-volatile computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are executed by one or more processors, for example, executing the above The described method steps in Fig. 2 or Fig. 3 realize the functions of the modules and units in Fig. 4 or Fig. 5.

The embodiment of the present invention provides a computer program product, which includes a calculation program stored on a non-volatile computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer, the The computer executes the serial port data encoding method in any of the foregoing method embodiments, for example, executes the method steps in FIG. 2 or FIG. 3 described above to realize the functions of the modules and units in FIG. 4 or FIG. 5.

The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

Through the description of the above implementation manners, those of ordinary skill in the art can clearly understand that each implementation manner can be implemented by means of software plus a general hardware platform, and of course, it can also be implemented by hardware. A person of ordinary skill in the art can understand that all or part of the processes in the methods of the foregoing embodiments can be implemented by instructing relevant hardware through a computer program. The program can be stored in a computer readable storage medium, and the program can be stored in a computer readable storage medium. When executed, it may include the procedures of the above-mentioned method embodiments. Wherein, the storage medium may be a magnetic disk, an optical disc, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM), etc.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; under the idea of the present invention, the technical features of the above embodiments or different embodiments can also be combined. The steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above. For the sake of brevity, they are not provided in the details; although the present invention has been described in detail with reference to the foregoing embodiments, it is common in the art The skilled person should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the implementations of the present invention. Examples of the scope of technical solutions.

Claims (14)

1. A serial data encoding method, characterized in that it comprises:

   Acquiring serial port data, where the serial port data includes at least one message format segment;

   Convert the serial port data of the target message format segment to the preset serial port code data;

   Judging whether the serial port coded data is less than or equal to the first preset value of the preset base;

   If yes, add the serial port coded data to the second preset value of the preset base to obtain coded transmission data, so that the coded transmission data does not include character data;

   If not, split the serial port coded data into first split data and second split data, and both the first split data and the second split data are less than or equal to the first preset Values, respectively adding the first split data and the second split data to the second preset value of the preset number to obtain the first split coded transmission data and the second split coded transmission data, Therefore, neither the first split-coded transmission data and the second split-coded transmission data include character data.
2. The method according to claim 1, wherein when the preset base is hexadecimal, the converting serial port data of the target message format segment into serial code data of the preset base includes:

   Use the BCD code to encode the serial port data in the target message format section;

   The encoded serial port coded data is converted into hexadecimal serial port coded data.
3. The method according to claim 1 or 2, wherein the message format segment includes a frame header segment, a message instruction segment, a source device segment, a destination device segment, a frame sequence number segment, a content length segment, a content segment, and a collation. Code verification segment; the target message format segment includes a message instruction segment, a source device segment, a destination device segment, a frame sequence number segment, a content length segment, a content segment, and a verification code segment.
4. The method according to claim 2, wherein the first preset value is 0x9999, and the second preset value is 0x30.
5. The method according to claim 4, wherein the serial coded data is added to the second preset value of the preset base to obtain the coded transmission data, so that the coded transmission data does not contain characters Type data, including:

   Each byte of the serial port coded data is respectively added with hexadecimal 0x30 to obtain coded transmission data, so that the coded transmission data does not include character data.
6. The method according to claim 5, wherein the method further comprises:

   The encoded transmission data is sent through the serial port.
7. The method according to claim 4, wherein the first split data and the second split data are respectively added to the second preset value of the preset number to obtain the first split data. Split-coded transmission data and second split-coded transmission data so that neither the first split-coded transmission data nor the second split-coded transmission data contains character-type data, including:

   Add hexadecimal 0x30 to each byte of the first split data and the second split data to obtain the first split coded transmission data and the second split coded transmission data, so that the Neither the first split-coded transmission data nor the second split-coded transmission data contains character data.
8. The method according to claim 7, wherein the method further comprises:

   The first split-coded transmission data and the second split-coded transmission data are sent through a serial port.
9. A serial data encoding device, which is characterized in that it comprises:

   An acquisition module for acquiring serial port data, where the serial port data includes at least one message format segment;

   The conversion module is used to convert the serial port data of the target message format segment into the preset serial port code data;

   A judging module, configured to judge whether the serial port coded data is less than or equal to the first preset value of the preset base;

   The first encoding module is configured to add the serial port encoding data to the second preset value of the preset base if the serial port encoding data is less than or equal to the first preset value of the preset base Obtain coded transmission data, so that the coded transmission data does not contain character data;

   The second encoding module is configured to split the serial port encoding data into the first split data and the second split data if the serial port encoding data is greater than the first preset value of the preset base. The first split data and the second split data are both less than or equal to the first preset value, and the first split data and the second split data are added to the preset value respectively. To obtain the first split-coded transmission data and the second split-coded transmission data, so that the first split-coded transmission data and the second split-coded transmission data do not contain character type data.
10. The device according to claim 9, wherein the device further comprises:

    The first sending module is used to send the encoded transmission data through the serial port.
11. The device according to claim 9, wherein the device further comprises:

    The second sending module sends the first split-coded transmission data and the second split-coded transmission data through the serial port.
12. An embedded device, characterized in that it comprises:

    At least one processor; and,

    A memory communicatively connected with the at least one processor; wherein,

    The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute any one of claims 1-8 Methods.
13. A communication system, characterized in that it comprises:

    At least two embedded devices according to claim 12;

    The upper computer communicates with the embedded device.
14. A non-volatile computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute any one of claims 1-8. The method described in the item.

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