CN114143383B - Method and terminal for converting CAN protocol - Google Patents
Method and terminal for converting CAN protocol Download PDFInfo
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- CN114143383B CN114143383B CN202111450793.3A CN202111450793A CN114143383B CN 114143383 B CN114143383 B CN 114143383B CN 202111450793 A CN202111450793 A CN 202111450793A CN 114143383 B CN114143383 B CN 114143383B
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- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
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Abstract
The invention discloses a method and a terminal for converting CAN protocol, which are used for receiving data ID to be processed, judging whether a corresponding CAN protocol CAN be found according to the data ID, if so, searching a corresponding conversion mode from the CAN protocol, and obtaining converted data according to the conversion mode in a preset programming language environment; waiting to receive a new data ID to be processed; therefore, the corresponding conversion modes are obtained according to the data ID, the data of different conversion modes CAN be automatically obtained in a preset programming language environment, and the accuracy and the efficiency of converting the CAN protocol are improved.
Description
Technical Field
The invention relates to the technical field of embedded technology, in particular to a method and a terminal for converting CAN protocol.
Background
The CAN (Controller Area Network, controller area network bus) protocol is a serial communication protocol for real-time application, and is mainly used for communication among various ECUs (Electronic Control Unit, electronic control units) in automobiles, wherein the CAN protocol comprises id, data, a data coding format and a data analysis mode.
In a conventional manner, when converting the CAN protocol, a software engineer needs to provide the CAN protocol of each ECU by a manufacturer, then manually write each data format to be transmitted to each part of ECU or analyze the data received from each ECU in the own ECU, and in this process, the problem that the format of the transmitted data is incorrect or the analysis has problems may occur, so that the re-investigation is required, which is time-consuming and laborious and even affects the progress of the whole project.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the CAN protocol conversion method and the terminal CAN improve the accuracy and efficiency of CAN protocol conversion.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method of converting CAN protocol, comprising the steps of:
receiving a data ID to be processed;
judging whether a corresponding CAN protocol CAN be found according to the data ID, if so, finding a corresponding conversion mode from the CAN protocol, and obtaining converted data according to the conversion mode in a preset programming language environment;
waiting to receive a new pending data ID.
In order to solve the technical problems, the invention adopts another technical scheme that:
a terminal for converting CAN protocol, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
receiving a data ID to be processed;
judging whether a corresponding CAN protocol CAN be found according to the data ID, if so, finding a corresponding conversion mode from the CAN protocol, and obtaining converted data according to the conversion mode in a preset programming language environment;
waiting to receive a new pending data ID.
The invention has the beneficial effects that: receiving a data ID to be processed, judging whether a corresponding CAN protocol CAN be found according to the data ID, if so, finding a corresponding conversion mode from the CAN protocol, and obtaining converted data according to the conversion mode in a preset programming language environment; waiting to receive a new data ID to be processed; therefore, the corresponding conversion modes are obtained according to the data ID, the data of different conversion modes CAN be automatically obtained in a preset programming language environment, and the accuracy and the efficiency of converting the CAN protocol are improved.
Drawings
FIG. 1 is a flow chart of a method of converting CAN protocol according to an embodiment of the invention;
fig. 2 is a schematic diagram of a terminal for converting CAN protocol according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating steps of a method for converting CAN protocol according to an embodiment of the invention;
FIG. 4 is a flowchart illustrating steps of a method for converting CAN protocol according to an embodiment of the invention;
FIG. 5 is a schematic diagram of an interface for selecting a data ID to be processed by a user in a method for converting CAN protocol according to an embodiment of the invention;
fig. 6 is a flowchart of a method for converting CAN protocol according to an embodiment of the present invention, in which converted data is obtained in a C language environment.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 and fig. 3 to fig. 6, an embodiment of the present invention provides a method for converting a CAN protocol, including the steps of:
receiving a data ID to be processed;
judging whether a corresponding CAN protocol CAN be found according to the data ID, if so, finding a corresponding conversion mode from the CAN protocol, and obtaining converted data according to the conversion mode in a preset programming language environment;
waiting to receive a new pending data ID.
From the above description, the beneficial effects of the invention are as follows: receiving a data ID to be processed, judging whether a corresponding CAN protocol CAN be found according to the data ID, if so, finding a corresponding conversion mode from the CAN protocol, and obtaining converted data according to the conversion mode in a preset programming language environment; waiting to receive a new data ID to be processed; therefore, the corresponding conversion modes are obtained according to the data ID, the data of different conversion modes CAN be automatically obtained in a preset programming language environment, and the accuracy and the efficiency of converting the CAN protocol are improved.
Further, searching for a corresponding conversion mode from the CAN protocol includes:
judging whether a corresponding conversion mode exists in the CAN protocol, if so, acquiring the conversion mode corresponding to the CAN protocol, otherwise, performing data exception processing on the CAN protocol corresponding to the data ID.
As CAN be seen from the above description, before the CAN protocol conversion, it is required to confirm whether the conversion mode corresponding to the data exists, sometimes, because the manufacturer fails to provide some analysis modes of the data, the CAN protocol corresponding to the data ID to be processed cannot be converted, and is directly processed in an abnormal manner, so as to ensure the reliability of the protocol conversion.
Further, the obtaining the converted data according to the conversion mode in the preset programming language environment includes:
identifying a decoding type corresponding to the data ID in a preset programming language environment, and identifying parameters and parameter information in data corresponding to the data ID;
if the data to be processed is the data to be transmitted, generating a data transmission function, and substituting the conversion mode, the parameters and the parameter information of the data to be transmitted into the data transmission function to obtain converted data;
if the data to be processed is the data to be analyzed, a data analysis function is generated, and the conversion mode, the parameters and the parameter information of the data to be analyzed are substituted into the data analysis function to obtain converted data.
As can be seen from the above description, the decoding type corresponding to the data ID, the parameters in the corresponding data, and the parameter information are identified in the preset programming language environment, when the data to be processed is the data to be transmitted, a data transmission function is generated, and when the data to be processed is the data to be parsed, a data parsing function is generated; substituting the conversion mode, parameters and parameter information of the data to be transmitted into the data transmission function or the data analysis function to obtain converted data, thereby improving the flexibility of protocol conversion.
Further, substituting the conversion mode, the parameters and the parameter information of the data to be sent into the data sending function to obtain converted data includes:
dividing each parameter of the data to be transmitted by the resolution in the corresponding parameter information to obtain data to be bound;
binding the data to be bound in the data of the preset bytes to be transmitted according to the conversion mode sequence, and obtaining the converted encoded data.
As can be seen from the above description, each parameter of the data to be transmitted is divided by the corresponding resolution, and the processed data is sequentially bound in the data of the preset byte according to the conversion mode, thereby quickly and accurately generating the converted data.
Further, substituting the conversion mode, the parameters and the parameter information of the data to be analyzed into the data analysis function to obtain converted data includes:
according to the conversion mode, carrying out parameter splitting and numerical analysis on the data to be processed of the preset bytes;
multiplying the parameter value obtained by analysis by the resolution in the parameter information corresponding to the data to be analyzed to obtain the converted analyzed data.
As can be seen from the above description, splitting and numerical analysis are performed on the data of the preset byte, and the data obtained by the analysis is multiplied by the resolution in the parameter information corresponding to the data to be analyzed, so that the converted data can be quickly and accurately generated.
Referring to fig. 2, another embodiment of the present invention provides a terminal for converting CAN protocol, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the following steps when executing the computer program:
receiving a data ID to be processed;
judging whether a corresponding CAN protocol CAN be found according to the data ID, if so, finding a corresponding conversion mode from the CAN protocol, and obtaining converted data according to the conversion mode in a preset programming language environment;
waiting to receive a new pending data ID.
From the above description, it CAN be seen that, the data ID to be processed is received, whether a corresponding CAN protocol CAN be found according to the data ID is determined, if so, a corresponding conversion mode is found from the CAN protocol, and converted data is obtained according to the conversion mode in a preset programming language environment; waiting to receive a new data ID to be processed; therefore, the corresponding conversion modes are obtained according to the data ID, the data of different conversion modes CAN be automatically obtained in a preset programming language environment, and the accuracy and the efficiency of converting the CAN protocol are improved.
Further, searching for a corresponding conversion mode from the CAN protocol includes:
judging whether a corresponding conversion mode exists in the CAN protocol, if so, acquiring the conversion mode corresponding to the CAN protocol, otherwise, performing data exception processing on the CAN protocol corresponding to the data ID.
As CAN be seen from the above description, before the CAN protocol conversion, it is required to confirm whether the conversion mode corresponding to the data exists, sometimes, because the manufacturer fails to provide some analysis modes of the data, the CAN protocol corresponding to the data ID to be processed cannot be converted, and is directly processed in an abnormal manner, so as to ensure the reliability of the protocol conversion.
Further, the obtaining the converted data according to the conversion mode in the preset programming language environment includes:
identifying a decoding type corresponding to the data ID in a preset programming language environment, and identifying parameters and parameter information in data corresponding to the data ID;
if the data to be processed is the data to be transmitted, generating a data transmission function, and substituting the conversion mode, the parameters and the parameter information of the data to be transmitted into the data transmission function to obtain converted data;
if the data to be processed is the data to be analyzed, a data analysis function is generated, and the conversion mode, the parameters and the parameter information of the data to be analyzed are substituted into the data analysis function to obtain converted data.
As can be seen from the above description, the decoding type corresponding to the data ID, the parameters in the corresponding data, and the parameter information are identified in the preset programming language environment, when the data to be processed is the data to be transmitted, a data transmission function is generated, and when the data to be processed is the data to be parsed, a data parsing function is generated; substituting the conversion mode, parameters and parameter information of the data to be transmitted into the data transmission function or the data analysis function to obtain converted data, thereby improving the flexibility of protocol conversion.
Further, substituting the conversion mode, the parameters and the parameter information of the data to be sent into the data sending function to obtain converted data includes:
dividing each parameter of the data to be transmitted by the resolution in the corresponding parameter information to obtain data to be bound;
binding the data to be bound in the data of the preset bytes to be transmitted according to the conversion mode sequence, and obtaining the converted encoded data.
As can be seen from the above description, each parameter of the data to be transmitted is divided by the corresponding resolution, and the processed data is sequentially bound in the data of the preset byte according to the conversion mode, thereby quickly and accurately generating the converted data.
Further, substituting the conversion mode, the parameters and the parameter information of the data to be analyzed into the data analysis function to obtain converted data includes:
according to the conversion mode, carrying out parameter splitting and numerical analysis on the data to be processed of the preset bytes;
multiplying the parameter value obtained by analysis by the resolution in the parameter information corresponding to the data to be analyzed to obtain the converted analyzed data.
As can be seen from the above description, splitting and numerical analysis are performed on the data of the preset byte, and the data obtained by the analysis is multiplied by the resolution in the parameter information corresponding to the data to be analyzed, so that the converted data can be quickly and accurately generated.
The method and the terminal for converting the CAN protocol are suitable for assisting a software engineer to transplant the CAN protocol to codes, and CAN directly convert the CAN protocol into a C language, so that the accuracy and the efficiency of converting the CAN protocol CAN be improved, and the method and the terminal are described by specific implementation modes:
example 1
Referring to fig. 1, 3 to 6, a method for converting CAN protocol includes the steps of:
s1, receiving the data ID to be processed.
Specifically, referring to fig. 5, an ID corresponding to data to be processed selected by a user on a user interface is received, and the uppermost part of the interface is a state of a display system, so that the user CAN know what state the system is in at present, the middle of the interface is for the user to select an ID needing to generate a code, the user CAN see parameters in each ID through the interface, an execution button is arranged at the lowest part of the interface, and the conversion of the CAN protocol CAN be started by pressing a start button as long as the ID is confirmed.
S2, judging whether a corresponding CAN protocol CAN be found according to the data ID, if so, finding a corresponding conversion mode from the CAN protocol, and obtaining converted data according to the conversion mode in a preset programming language environment.
S21, judging whether a corresponding CAN protocol CAN be found according to the data ID, if so, judging whether a corresponding conversion mode exists in the CAN protocol, if so, acquiring the conversion mode corresponding to the CAN protocol, executing step S22, and if not, performing data exception processing on the CAN protocol corresponding to the data ID; otherwise, step S25 is performed.
Specifically, if the data ID has a corresponding CAN protocol, whether the corresponding conversion mode exists in the CAN protocol or not needs to be judged, if the data analysis mode cannot be found, abnormal information is fed back, and then the data analysis mode corresponding to the next ID is searched; if the corresponding data analysis mode is found, the method enters a C language function generating state to generate a function for transmitting or analyzing data, if the id is in need of waiting for conversion, the method returns to a CAN protocol searching state, and if the id is not in need of waiting for confirmation, the method returns to an id waiting state.
S22, identifying the decoding type corresponding to the data ID in a preset programming language environment, and identifying parameters and parameter information in the data corresponding to the data ID.
Specifically, decoding information of the data needs to be identified at first, then which parameters are contained in the data, the type of each parameter is identified, the initial bit and byte length of each parameter in the data are confirmed, and finally the resolution of the parameters is judged.
If the received data is analyzed, the data is split, then the data is decoded according to the decoded information, and then the corresponding parameters are obtained.
S23, if the data to be processed is the data to be transmitted, generating a data transmission function, and substituting the conversion mode, the parameters and the parameter information of the data to be transmitted into the data transmission function to obtain converted data.
Dividing each parameter of the data to be transmitted by the resolution in the corresponding parameter information to obtain the data to be bound;
binding the data to be bound in the data of the preset bytes to be transmitted according to the conversion mode sequence, and obtaining the converted encoded data.
Specifically, if the data ID belongs to the transmitted content, a data transmission function is generated, and parameters to be transmitted are bound to the transmitted data according to decoding information; the data transmission function is to divide each parameter by the corresponding resolution, and then bind the parameter divided by the resolution on the transmitted 8 byte data according to the sequence of the data coding mode in the conversion mode, so as to obtain the converted coded data.
And S24, if the data to be processed is the data to be analyzed, generating a data analysis function, and substituting the conversion mode, the parameters and the parameter information of the data to be analyzed into the data analysis function to obtain converted data.
The method comprises the steps of carrying out parameter splitting and numerical analysis on data to be processed of preset bytes according to a conversion mode;
multiplying the parameter value obtained by analysis by the resolution in the parameter information corresponding to the data to be analyzed to obtain the converted analyzed data.
Specifically, if the data ID is received and then analyzed, a data analysis function is generated, the data is split into parameters, and then the parameters are decoded according to a data decoding mode in a conversion mode, so as to obtain corresponding parameters; the data decoding function initially receives 8 bytes of data, then splits the data according to a data decoding mode, then analyzes the data into numerical values, and then multiplies the numerical values by resolution to obtain required parameters, so as to obtain converted analyzed data.
And S25, if not, carrying out data exception processing on the CAN protocol corresponding to the data ID.
Specifically, if the CAN protocol does not exist, the abnormal state is entered, and corresponding abnormal information is fed back.
S3, waiting to receive a new data ID to be processed.
Therefore, the CAN protocol conversion method in the implementation CAN simultaneously generate a plurality of functions and transmission functions for analyzing different data, thereby ensuring error-free analysis and improving the working efficiency.
Example two
Referring to fig. 2, a terminal for converting CAN protocol includes a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor implements the steps of a data transmission method according to the first embodiment when executing the computer program.
In summary, the method and the terminal for converting the CAN protocol provided by the invention receive the data ID to be processed, judge whether the corresponding CAN protocol CAN be found according to the data ID, if yes, confirm whether the corresponding conversion mode of the data exists before the CAN protocol conversion, if yes, find the corresponding conversion mode from the CAN protocol, obtain the converted data according to the conversion mode in the preset programming language environment, if not, the CAN protocol corresponding to the data ID to be processed cannot be converted, and directly process in an abnormal mode; in a preset programming language environment, identifying a decoding type corresponding to the data ID, parameters and parameter information in corresponding data, generating a data transmission function when the data to be processed is the data to be transmitted, and generating a data analysis function when the data to be processed is the data to be analyzed; substituting the conversion mode, parameters and parameter information of the data to be transmitted into the data transmission function or the data analysis function to obtain converted data, thereby improving the flexibility of protocol conversion; waiting to receive a new data ID to be processed; therefore, the corresponding conversion modes are obtained according to the data ID, the data of different conversion modes CAN be automatically obtained in a preset programming language environment, a plurality of functions or sending functions for analyzing different data CAN be generated at one time, code logic is not required to be written manually, and the accuracy and efficiency of converting the CAN protocol are improved.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (4)
1. A method of converting CAN protocol comprising the steps of:
receiving a data ID to be processed;
judging whether a corresponding CAN protocol CAN be found according to the data ID, if so, finding a corresponding conversion mode from the CAN protocol, and obtaining converted data according to the conversion mode in a preset programming language environment;
the obtaining the converted data according to the conversion mode in the preset programming language environment comprises the following steps:
identifying a decoding type corresponding to the data ID in a preset programming language environment, and identifying parameters and parameter information in data corresponding to the data ID;
if the data to be processed is the data to be transmitted, generating a data transmission function, substituting the conversion mode, the parameters and the parameter information of the data to be transmitted into the data transmission function to obtain converted data: dividing each parameter of the data to be transmitted by the resolution in the corresponding parameter information to obtain data to be bound; binding the data to be bound in the data of the preset bytes to be transmitted according to the conversion mode sequence to obtain converted encoded data;
if the data to be processed is the data to be analyzed, a data analysis function is generated, and the conversion mode, the parameters and the parameter information of the data to be analyzed are substituted into the data analysis function to obtain converted data: according to the conversion mode, carrying out parameter splitting and numerical analysis on the data to be processed of the preset bytes; multiplying the parameter value obtained by analysis by the resolution in the parameter information corresponding to the data to be analyzed to obtain converted analyzed data;
waiting to receive a new pending data ID.
2. The method of converting CAN protocol of claim 1, wherein finding a corresponding conversion pattern from the CAN protocol comprises:
judging whether a corresponding conversion mode exists in the CAN protocol, if so, acquiring the conversion mode corresponding to the CAN protocol, otherwise, performing data exception processing on the CAN protocol corresponding to the data ID.
3. A terminal for converting CAN protocol, comprising a memory, a processor and a computer program stored on said memory and executable on the processor, characterized in that said processor implements the following steps when executing said computer program:
receiving a data ID to be processed;
judging whether a corresponding CAN protocol CAN be found according to the data ID, if so, finding a corresponding conversion mode from the CAN protocol, and obtaining converted data according to the conversion mode in a preset programming language environment;
the obtaining the converted data according to the conversion mode in the preset programming language environment comprises the following steps:
identifying a decoding type corresponding to the data ID in a preset programming language environment, and identifying parameters and parameter information in data corresponding to the data ID;
if the data to be processed is the data to be transmitted, generating a data transmission function, substituting the conversion mode, the parameters and the parameter information of the data to be transmitted into the data transmission function to obtain converted data: dividing each parameter of the data to be transmitted by the resolution in the corresponding parameter information to obtain data to be bound; binding the data to be bound in the data of the preset bytes to be transmitted according to the conversion mode sequence to obtain converted encoded data;
if the data to be processed is the data to be analyzed, a data analysis function is generated, and the conversion mode, the parameters and the parameter information of the data to be analyzed are substituted into the data analysis function to obtain converted data: according to the conversion mode, carrying out parameter splitting and numerical analysis on the data to be processed of the preset bytes; multiplying the parameter value obtained by analysis by the resolution in the parameter information corresponding to the data to be analyzed to obtain converted analyzed data;
waiting to receive a new pending data ID.
4. A terminal for converting CAN protocol according to claim 3, wherein searching for a corresponding conversion mode from the CAN protocol comprises:
judging whether a corresponding conversion mode exists in the CAN protocol, if so, acquiring the conversion mode corresponding to the CAN protocol, otherwise, performing data exception processing on the CAN protocol corresponding to the data ID.
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| CN106603482A (en) * | 2016-05-26 | 2017-04-26 | 欣旺达电子股份有限公司 | Method and device for automatically generating CAN communication protocol code |
| CN107547574A (en) * | 2017-10-31 | 2018-01-05 | 哈尔滨工业大学 | A kind of communication system and method based on puppy parc |
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| KR102360168B1 (en) * | 2017-11-01 | 2022-02-09 | 현대자동차주식회사 | Apparatus and method for converting protocol with type of data |
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| CN106603482A (en) * | 2016-05-26 | 2017-04-26 | 欣旺达电子股份有限公司 | Method and device for automatically generating CAN communication protocol code |
| CN107547574A (en) * | 2017-10-31 | 2018-01-05 | 哈尔滨工业大学 | A kind of communication system and method based on puppy parc |
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