CN116232798B - Method, system, equipment and terminal for controlling various CAN bus equipment in cross-platform mode - Google Patents
Method, system, equipment and terminal for controlling various CAN bus equipment in cross-platform mode Download PDFInfo
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- CN116232798B CN116232798B CN202310068475.3A CN202310068475A CN116232798B CN 116232798 B CN116232798 B CN 116232798B CN 202310068475 A CN202310068475 A CN 202310068475A CN 116232798 B CN116232798 B CN 116232798B
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- 238000001914 filtration Methods 0.000 claims description 12
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- 238000004458 analytical method Methods 0.000 claims description 8
- 230000006870 function Effects 0.000 claims description 8
- 238000004590 computer program Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40169—Flexible bus arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2212/00—Encapsulation of packets
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention belongs to the technical field of automobile electronic information, and discloses a method, a system, equipment and a terminal for controlling various CAN bus equipment in a cross-platform manner. The specific process comprises the following steps: starting a CAN server; inputting channel parameters; selecting whether to connect to a remote server; calling an API opening device corresponding to the channel parameter; setting a filter; opening a channel to transmit and receive messages; closing the channel. The method disclosed by the invention is compatible with different CAN cards, and the functional interfaces are highly unified, so that the migration cost caused by changing software or scripts caused by different CAN cards is saved, the multiplexing rate is improved, and the labor cost in the development process is saved. In addition, the public problem of equipment is solved by remote calling through a network, the utilization rate of the CAN card is improved, and the cost is saved.
Description
Technical Field
The invention belongs to the technical field of automobile electronic information, and particularly relates to a method, a system, equipment and a terminal for controlling various CAN bus equipment in a cross-platform manner.
Background
At present, with the years of development and application of the CAN bus in the automotive field, the CAN bus has become very mature, embedded hardware is increasingly powerful, and besides the prior German Vector devices, the market also has the brands of HanilPro in Korea, zhou Ligong in China and the like. These new brands are cheaper and therefore popular. But using different devices presents challenges to CAN bus usage, increasing the migration cost of the project. There is thus a need for a method that is compatible with a variety of devices, adding new code commonalities. In addition, the CAN card is applied to equipment such as automobile electronics, so that a special cabinet is required to be matched for use in the HIL test process, the movement is difficult, and the remote test requirement is generated.
Through the above analysis, the problems and defects existing in the prior art are as follows:
(1) The compatible device is single, and the software or API interface of a common manufacturer can only be compatible with the device, so that a barrier is formed.
(2) APIs of various devices differ in order of operation, and thus a large amount of code is changed even if a secondary development uses a different device.
(3) The support language is not rich enough, and the common CAN card API only supports C or Python to call, and CAN not use java or other languages to develop programs.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method, a system, equipment and a terminal for controlling various CAN bus equipment in a cross-platform manner.
The invention is realized in such a way, and a method for controlling various CAN bus devices in a cross-platform way aims to solve the problems that various brands of CAN cards are not universal and are not compatible. The method realizes the call of the CAN cards of all brands to carry out CAN bus communication through the CAN server. The CAN message module CAN realize the functions of receiving and transmitting CAN messages, filtering and the like, and uniformly packages the CAN messages, thereby facilitating the subsequent secondary development, carrying out automatic test, analyzing and developing CAN bus related software.
The method for controlling various CAN bus devices in a cross-platform manner comprises a remote calling mode and a local calling mode;
the remote call mode is to construct a CAN server to remotely call various CAN bus devices by adopting a gRPC server framework, and the CAN server comprises: the CAN module comprises a CAN parameter module, a CAN API module and a CAN message module;
the local calling mode is to directly call the various CAN bus devices.
Further, the CAN parameter module is used for transferring parameters when the bus equipment is called; setting a bus type to distinguish the type of the device currently using the bus, and setting the ip address of the server and the port number of the CAN device by the bus of the CAN server when the remote call mode is adopted, wherein specific parameters are as follows according to different setting parameters of the bus type:
further, the CAN API module is used for collecting APIs of various devices, generating a unified API interface, customizing a device number, generating APIs according to the number, and calling APIs of corresponding devices according to the device number;
the CAN API module calls different bus subclasses according to the bus type, and uses different API interfaces to initialize equipment in the subclasses, wherein the API interfaces comprise an equipment handle application, parameter setting, channel handle acquisition and channel opening.
Further, the CAN message module is used for carrying out abstract analysis on the CAN card, carrying out message receiving, message sending and message filtering, analyzing the message format and packaging the message format into a unified message format; meanwhile, a filter is also arranged for filtering the message receiving and sending information, and the operation of receiving and sending the message is triggered by script or software.
Further, the specific process of the method for controlling the plurality of CAN bus devices in a cross-platform manner comprises the following steps:
starting the CAN server and initializing a CAN API module; inputting relevant channel parameters according to requirements, and transmitting the relevant channel parameters to a CAN parameter module for initialization; selecting whether to connect a remote server or not, selecting local call to directly call local CAN equipment, and selecting to connect the remote server to remotely call an API through network service; calling corresponding API opening equipment in the CAN API module according to parameters in the CAN parameter module; setting filters in the CAN message module, and setting different filters according to different requirements; opening a channel, and calling a CAN message module to transmit and receive messages according to parameters in the CAN parameter module; closing the channel.
Further, when the remote server is connected, parameters in the input channel parameters are transmitted to the CAN parameter module, the CAN API module and the CAN message module of the server, and corresponding API opening equipment is called for message receiving and transmitting.
Another object of the present invention is to provide a system for cross-platform manipulation of a plurality of CAN bus devices, which implements the method for cross-platform manipulation of a plurality of CAN bus devices, the system for cross-platform manipulation of a plurality of CAN bus devices comprising:
the parameter setting module is used for inputting channel parameters; when CAN equipment is called, various parameters are required to be input to carry out different control operations on different CAN equipment, and the module uniformly sets the parameters, so that the user CAN conveniently input, edit and change the parameters. When the user sets the parameters, the format of the parameters is confirmed, if the format of the parameters is correct, the parameters are saved, and if the format of the parameters is wrong, the user is prompted to input the parameters again.
The CAN server is used for remotely or directly calling various CAN bus devices; it comprises the following steps: CAN parameter module, CAN API module, CAN message module. The CAN parameter module is used for transferring parameters when the bus equipment is called. The CAN API module is used for collecting APIs of various devices, generating a unified API interface, customizing the number of the devices, generating APIs according to the number, and calling APIs of the corresponding devices according to the number of the devices. The CAN message module is used for carrying out abstract analysis on the CAN card and carrying out the functions of message receiving, message sending, message filtering and the like.
And the equipment control module is used for opening equipment according to the API corresponding to the channel parameters and carrying out message transceiving. According to the channel parameters, matching the APIs of corresponding equipment in a CAN API module of a CAN server, opening the corresponding equipment according to the successfully matched APIs, and carrying out message receiving and transmitting in a broadcast mode in a CAN message module according to the corresponding parameters.
It is a further object of the present invention to provide a computer device comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of the method of handling a plurality of CAN bus devices across platforms.
It is a further object of the present invention to provide a computer readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of the method of handling a plurality of CAN bus devices across platforms.
The invention further aims to provide an information data processing terminal which is used for realizing the system for controlling various CAN bus devices in a cross-platform mode.
In combination with the technical scheme and the technical problems to be solved, the technical scheme to be protected has the following advantages and positive effects:
first, aiming at the technical problems in the prior art and the difficulty in solving the problems, the technical problems solved by the technical proposal of the invention are analyzed in detail and deeply by tightly combining the technical proposal to be protected, the results and data in the research and development process, and the like, and some technical effects brought after the problems are solved have creative technical effects. The specific description is as follows:
the method for controlling various CAN bus devices in a cross-platform manner CAN call a remote server or different local CAN cards to complete a test function, and solves the problem that a matched cabinet is required to be used in the test process. Meanwhile, the CAN message module CAN be used for carrying out message transmission, message analysis, message filtering and message receiving on different CAN cards, and the unified message format is packaged when the message format is analyzed so as to achieve the function of receiving and transmitting messages of different compatible devices. Meanwhile, the effect of testing different devices or different languages CAN be achieved by only changing the parameter calling device in the CAN parameter module and using the unified CAN API interface module.
Secondly, the technical scheme is regarded as a whole or from the perspective of products, and the technical scheme to be protected has the following technical effects and advantages:
the method disclosed by the invention is compatible with different CAN cards, and the functional interfaces are highly unified, so that the migration cost caused by changing software or scripts caused by different CAN cards is saved, the multiplexing rate is improved, and the labor cost in the development process is saved. In addition, the public problem of equipment is solved by remote calling through a network, the utilization rate of the CAN card is improved, and the cost is saved.
Thirdly, as inventive supplementary evidence of the claims of the present invention, the following important aspects are also presented:
(1) The expected benefits and commercial values after the technical scheme of the invention is converted are as follows:
the conversion of the method for controlling various CAN bus devices in a cross-platform manner CAN be compatible with different CAN cards, solves the problem that different CAN cards need different testing tools and testing software, and reduces the high cost brought by the testing tools and the testing software. Meanwhile, the public problem of equipment is solved through a network remote call model, the CAN card utilization rate is improved, and the enterprise cost is reduced through renting public servers and simultaneously great commercial value is brought to a test platform.
(2) Whether the technical scheme of the invention solves the technical problems that people want to solve all the time but fail to obtain success all the time is solved:
the invention provides a method for calling CAN cards of various brands to carry out CAN bus communication, which aims to solve the technical problems that the CAN cards of various brands are not universal and compatible at present and CAN realize the functions of receiving and transmitting CAN messages, filtering and the like. In addition, the CAN message is uniformly packaged, so that the subsequent secondary development is facilitated, the automatic test and analysis are performed, and the CAN bus related software is developed.
Drawings
Fig. 1 is a flowchart of a method for controlling multiple CAN bus devices in a cross-platform manner according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In order to fully understand how the invention may be embodied by those skilled in the art, this section is an illustrative embodiment in which the claims are presented for purposes of illustration.
The method for controlling various CAN bus devices in a cross-platform manner comprises a remote calling mode and a local calling mode, wherein the remote calling mode is to construct a CAN server by adopting a gRPC server frame to remotely call the various CAN bus devices; and the local calling mode directly calls the CAN bus equipment.
Further, the CAN server includes: the CAN module comprises a CAN parameter module, a CAN API module and a CAN message module;
the CAN parameter module is used for transferring parameters when the bus equipment is called. The bus type needs to be set to distinguish what kind of device is currently used, if the bus is in a remote call mode, the bus of the CAN server needs to use the ip address of the set server and the port number of the CAN device, and some special parameters are set according to different needs of the bus. In addition, important parameters such as channel handles and the like are used as attributes of classes for subsequent message receiving and sending functions.
The CAN API module is used for collecting APIs of various devices, generating a unified API interface, customizing a device number, generating APIs according to the number, and calling APIs of corresponding devices according to the device number. When the CAN API module is instantiated, different bus subclasses are called according to the bus types, and equipment is initialized in the subclasses by using API interfaces provided by different manufacturers, such as equipment handle application, parameter setting, channel handle acquisition, channel opening and the like.
The CAN message module is used for carrying out abstract analysis on the CAN card, summarizing and arranging three most basic functions of the CAN card, namely, message receiving, message sending and message filtering, analyzing the message format and packaging the message format into a unified message format. Meanwhile, a filter is designed to filter the message receiving and sending information, and the message receiving and sending operation can be triggered by script or software.
As shown in fig. 1, the specific process of the method for handling multiple CAN bus devices in a cross-platform manner includes:
starting the CAN server and initializing a CAN API module; inputting relevant channel parameters according to requirements, and transmitting the relevant channel parameters to a CAN parameter module for initialization; selecting whether to connect a remote server or not, selecting local call to directly call local CAN equipment, and selecting to connect the remote server to remotely call an API through network service; calling corresponding API opening equipment in the CAN API module according to parameters in the CAN parameter module; setting filters in the CAN message module, and setting different filters according to different requirements; opening a channel, and calling a CAN message module to transmit and receive messages according to parameters in the CAN parameter module; closing the channel.
When the remote server is connected, parameters in the input channel parameters are transmitted to the CAN parameter module, the CAN API module and the CAN message module of the server, and corresponding API opening equipment is called for message receiving and transmitting.
The embodiment of the invention also provides a system for controlling various CAN bus devices in a cross-platform manner, which comprises:
the parameter setting module is used for inputting channel parameters;
the CAN server is used for remotely or directly calling various CAN bus devices;
and the equipment control module is used for opening equipment according to the API corresponding to the channel parameters and carrying out message transceiving.
In order to prove the inventive and technical value of the technical solution of the present invention, this section is an application example on specific products or related technologies of the claim technical solution.
CAN server embodiment:
the CAN server includes: the CAN module comprises a CAN parameter module, a CAN API module and a CAN message module;
the CAN parameter module is used for transferring parameters when the bus equipment is called; and setting a bus type to distinguish the type of the device currently using the bus, wherein when the remote calling mode is adopted, the bus of the CAN server uses the ip address of the set server and the port number of the CAN device, and corresponding parameters are set according to different bus types to operate the CAN device.
The CAN API module is used for collecting APIs of various devices, generating a unified API interface, customizing a device number, generating APIs according to the number, and calling APIs of corresponding devices according to the device number;
the CAN message module is used for carrying out abstract analysis on the CAN card, carrying out message receiving, message sending and message filtering, analyzing the message format and packaging the message format into a unified message format; meanwhile, a filter is also arranged for filtering the message receiving and sending information, and the operation of receiving and sending the message is triggered by script or software.
The method for controlling the various CAN bus devices in the cross-platform mode, which is provided by the application embodiment of the invention, is applied to computer equipment, wherein the computer equipment comprises a memory and a processor, the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method for controlling the various CAN bus devices in the cross-platform mode.
The method for controlling various CAN bus devices in a cross-platform manner, which is provided by the application embodiment of the invention, is applied to an information data processing terminal, wherein the information data processing terminal is used for realizing the system for controlling various CAN bus devices in a cross-platform manner.
The embodiment of the invention has a great advantage in the research and development or use process, and has the following description in combination with data, charts and the like of the test process.
It should be noted that the embodiments of the present invention can be realized in hardware, software, or a combination of software and hardware. The hardware portion may be implemented using dedicated logic; the software portions may be stored in a memory and executed by a suitable instruction execution system, such as a microprocessor or special purpose design hardware. Those of ordinary skill in the art will appreciate that the apparatus and methods described above may be implemented using computer executable instructions and/or embodied in processor control code, such as provided on a carrier medium such as a magnetic disk, CD or DVD-ROM, a programmable memory such as read only memory (firmware), or a data carrier such as an optical or electronic signal carrier. The device of the present invention and its modules may be implemented by hardware circuitry, such as very large scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, etc., or programmable hardware devices such as field programmable gate arrays, programmable logic devices, etc., as well as software executed by various types of processors, or by a combination of the above hardware circuitry and software, such as firmware.
The foregoing is merely illustrative of specific embodiments of the present invention, and the scope of the invention is not limited thereto, but any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present invention will be apparent to those skilled in the art within the scope of the present invention.
Claims (8)
1. The method for controlling various CAN bus devices in a cross-platform manner is characterized in that a CAN server is constructed through a gRPC server frame to realize the call of CAN cards of various brands for CAN bus communication, and the CAN server comprises the following components: the CAN module comprises a CAN parameter module, a CAN API module and a CAN message module; the CAN parameter module is used for transferring parameters when the bus equipment is called; the CAN API module is used for collecting APIs of various devices, generating a unified API interface, customizing a device number, generating APIs according to the number, and calling APIs of corresponding devices according to the device number; the CAN message module realizes the functions of receiving and transmitting CAN messages, filtering, analyzing and packaging the CAN message format into a unified message format, carrying out subsequent secondary development, carrying out automatic test, analyzing and developing CAN bus related software;
the CAN parameter module is used for transferring parameters when the bus equipment is called; setting a bus type to distinguish the type of the equipment currently using the bus, wherein when a remote call mode is adopted, the bus of the CAN server uses an ip address of the set server and a port number of the CAN equipment, and different setting parameters are set according to the bus type;
the method for controlling various CAN bus devices in a cross-platform manner comprises a remote calling mode and a local calling mode;
the remote calling mode is to construct a CAN server by adopting a gRPC server framework to remotely call various CAN bus devices;
the local calling mode is to directly call the various CAN bus devices.
2. The method for controlling multiple CAN bus devices in a cross-platform manner according to claim 1, wherein the CAN API module is configured to aggregate APIs of the various devices, generate a unified API interface, customize a device number, generate an API according to the number, and call an API of a corresponding device according to the device number;
the CAN API module calls different bus subclasses according to the bus type, and uses different API interfaces to initialize equipment in the subclasses, wherein the API interfaces comprise an equipment handle application, parameter setting, channel handle acquisition and channel opening.
3. The method for operating multiple CAN bus devices across platforms according to claim 1, wherein the CAN message module is configured to perform abstract analysis on a CAN card, perform message reception, message transmission, message filtering, analyze a message format, and package the message format into a unified message format; meanwhile, a filter is also arranged for filtering the message receiving and sending information, and the operation of receiving and sending the message is triggered by script or software;
the specific process of the method for controlling various CAN bus devices in a cross-platform manner comprises the following steps:
starting the CAN server and initializing a CAN API module; inputting relevant channel parameters according to requirements, and transmitting the relevant channel parameters to a CAN parameter module for initialization; selecting whether to connect a remote server or not, selecting local call to directly call local CAN equipment, and selecting to connect the remote server to remotely call an API through network service; calling corresponding API opening equipment in the CAN API module according to parameters in the CAN parameter module; setting filters in the CAN message module, and setting different filters according to different requirements; opening a channel, and calling a CAN message module to transmit and receive messages according to parameters in the CAN parameter module; closing the channel.
4. The method for cross-platform control of multiple CAN bus devices according to claim 3, wherein when the remote server is connected, parameters in input channel parameters are transferred to the CAN parameter module, the CAN API module and the CAN message module of the server, and corresponding API opening devices are called for message transceiving.
5. A system for cross-platform handling of a plurality of CAN bus devices implementing the method for cross-platform handling of a plurality of CAN bus devices of any one of claims 1-4, the system for cross-platform handling of a plurality of CAN bus devices comprising:
the parameter setting module is used for inputting channel parameters;
the CAN server is used for remotely or directly calling various CAN bus devices;
and the equipment control module is used for opening equipment according to the API corresponding to the channel parameters and carrying out message transceiving.
6. A computer device comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of the method of operating a plurality of CAN bus devices across platforms as claimed in any of claims 1 to 4.
7. A computer readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of the method of handling a plurality of CAN bus devices across platforms as claimed in any of claims 1-4.
8. An information data processing terminal, characterized in that the information data processing terminal is used for realizing the system for controlling various CAN bus devices in a cross-platform manner according to claim 5.
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