CN114143383A - Method and terminal for converting CAN protocol - Google Patents
Method and terminal for converting CAN protocol Download PDFInfo
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Abstract
The invention discloses a method and a terminal for converting a CAN protocol, which are used for receiving a 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 for receiving a new data ID to be processed; therefore, the corresponding conversion mode is obtained according to the data ID, data of different conversion modes CAN be automatically obtained under the preset programming language environment, and the accuracy and the efficiency of converting the CAN protocol are improved.
Description
Technical Field
The present invention relates to the field of embedded technologies, and in particular, to a method and a terminal for converting a CAN protocol.
Background
A CAN (Controller Area Network) protocol is a serial communication protocol for real-time application, and is mainly used for communication among various different ECUs (Electronic Control units) in an automobile, wherein the CAN protocol includes id, data, a data coding format, and a data parsing method.
According to the traditional mode, when the CAN protocol is converted, a software engineer needs a manufacturer to provide the CAN protocol of each ECU, then each data format to be sent is manually written in the ECU of the software engineer to the ECUs of each part or the data received from each ECU is analyzed, and in the process, incorrect format of the sent data or problems in analysis CAN occur, so that the data needs to be reexamined, time and labor are wasted, and the progress of the whole project is even influenced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method and the terminal for converting the CAN protocol CAN improve the accuracy and efficiency of converting the CAN protocol.
In order to solve the technical problems, the invention adopts the technical scheme that:
a method of converting a CAN protocol, comprising the steps of:
receiving a data ID to be processed;
judging whether the corresponding CAN protocol CAN be found according to the data ID, if so, finding the corresponding conversion mode from the CAN protocol, and obtaining converted data according to the conversion mode in a preset programming language environment;
waiting for the reception of a new pending data ID.
In order to solve the technical problem, the invention adopts another technical scheme as follows:
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 the corresponding CAN protocol CAN be found according to the data ID, if so, finding the corresponding conversion mode from the CAN protocol, and obtaining converted data according to the conversion mode in a preset programming language environment;
waiting for the reception of 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 for receiving a new data ID to be processed; therefore, the corresponding conversion mode is obtained according to the data ID, data of different conversion modes CAN be automatically obtained under the preset programming language environment, and the accuracy and the efficiency of converting the CAN protocol are improved.
Drawings
Fig. 1 is a flowchart of a method for converting a CAN protocol according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a terminal for converting a CAN protocol according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating specific steps of a method for converting a CAN protocol according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating specific steps of a method for converting a CAN protocol according to an embodiment of the present invention;
fig. 5 is a schematic interface diagram of a method for converting a CAN protocol according to an embodiment of the present invention, where a user selects a data ID to be processed;
fig. 6 is a flowchart of obtaining converted data in a C language environment according to a method for converting a CAN protocol of the embodiment of the present invention.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, 3 to 6, an embodiment of the present invention provides a method for converting a CAN protocol, including:
receiving a data ID to be processed;
judging whether the corresponding CAN protocol CAN be found according to the data ID, if so, finding the corresponding conversion mode from the CAN protocol, and obtaining converted data according to the conversion mode in a preset programming language environment;
waiting for the reception of a new pending data ID.
From the above description, the beneficial effects of the present invention are: 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 for receiving a new data ID to be processed; therefore, the corresponding conversion mode is obtained according to the data ID, data of different conversion modes CAN be automatically obtained under the 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:
and judging whether a corresponding conversion mode exists in the CAN protocol, if so, acquiring the conversion mode corresponding to the CAN protocol, and 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 is converted, it is necessary to determine whether a conversion manner corresponding to data exists, and sometimes a manufacturer fails to provide some data analysis manners, so that the CAN protocol corresponding to part of the to-be-processed data ID cannot be converted, and is directly processed in an abnormal manner, thereby ensuring the reliability of protocol conversion.
Further, the obtaining of the converted data according to the conversion manner 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 data to be sent, generating a data sending function, and substituting the conversion mode, parameters and parameter information of the data to be sent into the data sending function to obtain converted data;
and 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 the converted data.
As can be seen from the above description, the decoding type corresponding to the data ID, the parameter and the parameter information in the corresponding data 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 analyzed, a data analysis function is generated; and 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 the converted data, thereby improving the flexibility of protocol conversion.
Further, the substituting the conversion mode, the parameter and the parameter information of the data to be transmitted into the data transmission function to obtain the converted data includes:
dividing each parameter of the data to be sent by the resolution in the corresponding parameter information to obtain data to be bound;
and binding the data to be bound in the data of the preset bytes needing to be sent according to the conversion mode sequence to obtain 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 to the data of the preset bytes according to the conversion mode, so that the converted data is quickly and accurately generated.
Further, substituting the conversion mode, the parameter and the parameter information of the data to be analyzed into the data analysis function to obtain the converted data includes:
performing parameter splitting and numerical analysis on the data to be processed of the preset bytes according to the conversion mode;
and 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.
According to the description, the data of the preset bytes are split and subjected to numerical analysis, and the data obtained by 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 running on the processor, where the processor executes the computer program to implement the following steps:
receiving a data ID to be processed;
judging whether the corresponding CAN protocol CAN be found according to the data ID, if so, finding the corresponding conversion mode from the CAN protocol, and obtaining converted data according to the conversion mode in a preset programming language environment;
waiting for the reception of a new pending data ID.
As CAN be seen from the above description, the data ID to be processed is received, whether the corresponding CAN protocol CAN be found according to the data ID is judged, if yes, the corresponding conversion mode is found from the CAN protocol, and the converted data is obtained according to the conversion mode in the preset programming language environment; waiting for receiving a new data ID to be processed; therefore, the corresponding conversion mode is obtained according to the data ID, data of different conversion modes CAN be automatically obtained under the 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:
and judging whether a corresponding conversion mode exists in the CAN protocol, if so, acquiring the conversion mode corresponding to the CAN protocol, and 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 is converted, it is necessary to determine whether a conversion manner corresponding to data exists, and sometimes a manufacturer fails to provide some data analysis manners, so that the CAN protocol corresponding to part of the to-be-processed data ID cannot be converted, and is directly processed in an abnormal manner, thereby ensuring the reliability of protocol conversion.
Further, the obtaining of the converted data according to the conversion manner 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 data to be sent, generating a data sending function, and substituting the conversion mode, parameters and parameter information of the data to be sent into the data sending function to obtain converted data;
and 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 the converted data.
As can be seen from the above description, the decoding type corresponding to the data ID, the parameter and the parameter information in the corresponding data 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 analyzed, a data analysis function is generated; and 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 the converted data, thereby improving the flexibility of protocol conversion.
Further, the substituting the conversion mode, the parameter and the parameter information of the data to be transmitted into the data transmission function to obtain the converted data includes:
dividing each parameter of the data to be sent by the resolution in the corresponding parameter information to obtain data to be bound;
and binding the data to be bound in the data of the preset bytes needing to be sent according to the conversion mode sequence to obtain 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 to the data of the preset bytes according to the conversion mode, so that the converted data is quickly and accurately generated.
Further, substituting the conversion mode, the parameter and the parameter information of the data to be analyzed into the data analysis function to obtain the converted data includes:
performing parameter splitting and numerical analysis on the data to be processed of the preset bytes according to the conversion mode;
and 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.
According to the description, the data of the preset bytes are split and subjected to numerical analysis, and the data obtained by 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 a code and directly convert the CAN protocol into the C language, CAN improve the accuracy and efficiency of converting the CAN protocol, and are explained by a specific implementation mode as follows:
example one
Referring to fig. 1, 3 to 6, a method for converting a CAN protocol includes the steps of:
and 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, the state of the system is displayed at the top of the interface, so that a user CAN know the current state of the system, an ID in which a code needs to be generated is selected by the user in the middle of the interface, the user CAN see parameters in each ID through the interface, an execution button is arranged at the bottom of the interface, and the conversion of the CAN protocol CAN be started by pressing the start button as long as the ID is confirmed.
S2, judging whether the corresponding CAN protocol CAN be found according to the data ID, if so, finding the corresponding conversion mode from the CAN protocol, and obtaining the converted data according to the conversion mode in a preset programming language environment.
S21, judging whether the 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 the step S22, and if not, performing data exception processing on the CAN protocol corresponding to the data ID; otherwise, step S25 is executed.
Specifically, if the data ID has a corresponding CAN protocol, it is necessary to determine whether a corresponding conversion mode exists in the CAN protocol, and if the data analysis mode cannot be found, the 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 state of generating the C language function is entered, the function of sending or analyzing the data is generated, if id needs to be converted, the state of searching the CAN protocol is returned, and if no id exists, the state of waiting for confirming the id is directly returned.
And 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 parameters in the data and the type of each parameter are 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 used for analysis, the data is split, then decoding is carried out according to the decoded information, and then the corresponding parameters are obtained.
And 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 the converted data.
Dividing each parameter of the data to be sent by the resolution in the corresponding parameter information to obtain data to be bound;
and binding the data to be bound in the data of the preset bytes needing to be sent according to the conversion mode sequence to obtain the converted encoded data.
Specifically, if the data ID belongs to the transmitted content, a data transmission function is generated, and the parameter to be transmitted is bound to the transmitted data according to the decoding information; the data transmission function firstly divides each parameter by the corresponding resolution, and then binds the parameters divided by the resolution on the transmitted 8 bytes of data according to the sequence of the data coding mode in the conversion mode 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 the converted data.
Performing parameter splitting and numerical analysis on the data to be processed of the preset bytes according to the conversion mode;
and 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 used for parsing, a data parsing function is generated, the data is split into parameters, and then parameter decoding is performed according to a data decoding mode in the conversion mode to obtain corresponding parameters; the data decoding function receives 8 bytes of data at first, then splits the data according to a data decoding mode and analyzes the data into numerical values, and then multiplies the numerical values by resolution to obtain required parameters to obtain converted analyzed data.
And S25, otherwise, carrying out data exception processing on the CAN protocol corresponding to the data ID.
Specifically, if the CAN protocol does not exist, the system enters an abnormal state and feeds back corresponding abnormal information.
S3, waiting for receiving a new pending data ID.
Therefore, the method for converting the CAN protocol in the implementation CAN simultaneously generate a plurality of functions for analyzing different data and sending functions, thereby ensuring that no error analysis is carried out and simultaneously 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 executable on the processor, where the processor executes the computer program to implement the steps of a data transmission method according to a first embodiment.
In summary, the method and the terminal for converting the CAN protocol provided by the present invention receive the data ID to be processed, determine whether the corresponding CAN protocol CAN be found according to the data ID, if so, before the CAN protocol is converted, it is necessary to determine whether a conversion manner corresponding to the data exists, if so, find the corresponding conversion manner from the CAN protocol, obtain the converted data according to the conversion manner in a preset programming language environment, and if not, the CAN protocol corresponding to the data ID to be processed cannot be converted, and directly process in an abnormal manner; in a preset programming language environment, identifying a decoding type corresponding to a data ID, parameters and parameter information in corresponding data, generating a data sending function when the data to be processed is the data to be sent, and generating a data analyzing 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 for receiving a new data ID to be processed; therefore, the corresponding conversion mode is obtained according to the data ID, the data of different conversion modes CAN be automatically obtained under the preset programming language environment, a plurality of functions or sending functions for analyzing different data CAN be generated at one time, code logic does not need to be written manually, and the accuracy and the efficiency of converting the CAN protocol are improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (10)
1. A method of converting a CAN protocol, comprising the steps of:
receiving a data ID to be processed;
judging whether the corresponding CAN protocol CAN be found according to the data ID, if so, finding the corresponding conversion mode from the CAN protocol, and obtaining converted data according to the conversion mode in a preset programming language environment;
waiting for the reception of a new pending data ID.
2. The method of claim 1, wherein searching for the corresponding translation from the CAN protocol comprises:
and judging whether a corresponding conversion mode exists in the CAN protocol, if so, acquiring the conversion mode corresponding to the CAN protocol, and otherwise, performing data exception processing on the CAN protocol corresponding to the data ID.
3. The method of claim 1, wherein obtaining the converted data according to the conversion method in the predetermined programming language environment comprises:
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 data to be sent, generating a data sending function, and substituting the conversion mode, parameters and parameter information of the data to be sent into the data sending function to obtain converted data;
and 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 the converted data.
4. The method of claim 3, wherein the step of substituting the conversion mode, parameters and parameter information of the data to be transmitted into the data transmission function to obtain the converted data comprises:
dividing each parameter of the data to be sent by the resolution in the corresponding parameter information to obtain data to be bound;
and binding the data to be bound in the data of the preset bytes needing to be sent according to the conversion mode sequence to obtain the converted encoded data.
5. The method of claim 3, wherein the step of substituting the conversion mode, parameters and parameter information of the data to be analyzed into the data analysis function to obtain the converted data comprises:
performing parameter splitting and numerical analysis on the data to be processed of the preset bytes according to the conversion mode;
and 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.
6. A terminal for converting CAN protocol, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the following steps when executing the computer program:
receiving a data ID to be processed;
judging whether the corresponding CAN protocol CAN be found according to the data ID, if so, finding the corresponding conversion mode from the CAN protocol, and obtaining converted data according to the conversion mode in a preset programming language environment;
waiting for the reception of a new pending data ID.
7. The terminal of claim 6, wherein searching for a corresponding conversion from the CAN protocol comprises:
and judging whether a corresponding conversion mode exists in the CAN protocol, if so, acquiring the conversion mode corresponding to the CAN protocol, and otherwise, performing data exception processing on the CAN protocol corresponding to the data ID.
8. The terminal of claim 6, wherein obtaining the converted data according to the conversion method in the predetermined programming language environment comprises:
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 data to be sent, generating a data sending function, and substituting the conversion mode, parameters and parameter information of the data to be sent into the data sending function to obtain converted data;
and 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 the converted data.
9. The terminal for converting the CAN protocol according to claim 8, wherein the substituting the conversion mode, the parameter and the parameter information of the data to be transmitted into the data transmission function to obtain the converted data comprises:
dividing each parameter of the data to be sent by the resolution in the corresponding parameter information to obtain data to be bound;
and binding the data to be bound in the data of the preset bytes needing to be sent according to the conversion mode sequence to obtain the converted encoded data.
10. The terminal of claim 8, wherein the step of substituting the conversion mode, the parameters and the parameter information of the data to be analyzed into the data analysis function to obtain the converted data comprises:
performing parameter splitting and numerical analysis on the data to be processed of the preset bytes according to the conversion mode;
and 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.
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| US20190132424A1 (en) * | 2017-11-01 | 2019-05-02 | Hyundai Motor Company | Apparatus and method for converting protocol by type of data and vehicle system |
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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 |
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