CN109547309A - A kind of controller LAN message wiring method and device based on LabVIEW - Google Patents
A kind of controller LAN message wiring method and device based on LabVIEW Download PDFInfo
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- CN109547309A CN109547309A CN201811119114.2A CN201811119114A CN109547309A CN 109547309 A CN109547309 A CN 109547309A CN 201811119114 A CN201811119114 A CN 201811119114A CN 109547309 A CN109547309 A CN 109547309A
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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
-
- 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]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2212/00—Encapsulation of packets
Abstract
Embodiment of the present invention discloses a kind of controller LAN message wiring method and device based on LabVIEW.Initial configuration is carried out to host computer using the CAN acquired value module in the CAN tool storage room of LabVIEW；Metric write-in data are received, and metric write-in data are converted into hexadecimal according to scheduled message transformation rule；Hexadecimal write-in data are encapsulated as CAN message using the cluster module in the CAN tool storage room of LabVIEW；Using the writing module in the CAN tool storage room of LabVIEW, enables the host computer and the CAN message is written in CAN bus via CAN card.Embodiment of the present invention realizes the write-in of CAN message based on LabVIEW, can directly modify to the physical values of data, easy to learn without grasping the CAPL Programming with Pascal Language knowledge of profession.
Description
Technical field
The present invention relates to automobile technical fields, more particularly, to a kind of controller LAN message based on LabVIEW
Wiring method and device.
Background technique
Have in national newest standards " term and definition of automobile and trailer type " (GB/T 3730.1-2001) to automobile
Such as give a definition: by power drive, the vehicle of the non-track carrying with 4 or 4 or more wheels is mainly used for: carrying personnel
And (or) cargo；Draw the vehicle of carrying personnel and (or) cargo；Specific use.Energy shortage, oil crisis and environmental pollution
It grows in intensity, brings tremendous influence to people's lives, be directly related to the sustainable development of national economy and society.The world is each
State is all in active development new energy technology.
With the development of Hyundai Motor technology, controller LAN (CAN) technology is increasingly wide in vehicle electric field application
It is general.In CAN network arbitrary node can actively other nodes send information on network at any time, and regardless of principal and subordinate.CAN
Node need to only be filtered by the identifier to message can be realized the several ways hair such as point-to-point, point to multi--point and global broadcast
Send and receive data.The data transmission of CAN bus uses frame format.By the difference of frame format, it is divided into containing 11 bit identifiers
Standard frame and extension frame containing 29 bit identifiers.The frame type of CAN bus is divided into data frame, remote frame, erroneous frame and overload
Frame.
Currently, the CAN bus of automobile mainly includes vehicle body CAN bus, instrument CAN bus, charging CAN bus, motor-car CAN
Bus etc..Different CAN bus has different data format and baud rate.
During CAN communication, due to outside causes such as equipment limits, true CAN report cannot be written on CAN line
Text needs to simulate write-in by host computer at this time.Currently used CAN message wiring method is using CAPL script in CANoe
Message is written, this method needs the pre-configured channel CAN, will need the data preparation sent into dbc file and imports
In CANoe, reuses the simulation of CAPL script and send.The write-in of other CAN tool software (such as PCAN-Explorer, USBCAN)
Data method is similar to CANoe, and the data sent need to be converted into hexadecimal and are written.
However, during using the tool software such as CANoe write-in message, it is necessary first to the channel CAN and dbc file into
It goes and configures, and need to be grasped certain CAPL Programming with Pascal Language basis can just be operated, this is with comparable difficulty.In addition,
It needs to convert the data into the laggard row write of hexadecimal using the tool software such as CANoe write-in message to enter, in modification, change data
During, it also needs by calculating, converting, it is complicated for operation.
Summary of the invention
The purpose of the present invention is to propose to a kind of controller LAN message wiring method and device based on LabVIEW, drop
Low operation complexity.
The technical solution of embodiment of the present invention is as follows:
A kind of controller area network message wiring method based on LabVIEW, comprising:
Initial configuration is carried out to host computer using the CAN acquired value module in the CAN tool storage room of LabVIEW；
Metric write-in data are received, and are converted to metric write-in data according to scheduled message transformation rule
Hexadecimal；
Hexadecimal write-in data are encapsulated as CAN message using the cluster module in the CAN tool storage room of LabVIEW；
Using the writing module in the CAN tool storage room of LabVIEW, enables the host computer and report the CAN via CAN card
Text is written in CAN bus.
In one embodiment, the CAN bus include vehicle body CAN bus, instrument CAN bus, charging CAN bus or
Power CAN bus.
In one embodiment, the CAN acquired value module in the CAN tool storage room using LabVIEW is to host computer
Carrying out initial configuration includes:
Using the CAN acquired value module in the CAN tool storage room of LabVIEW, the channel CAN is set；
Using the CAN acquired value module in the CAN tool storage room of LabVIEW, baud rate is set；
Using the CAN acquired value module in the CAN tool storage room of LabVIEW, language is set.
In one embodiment, described that metric write-in data are converted to ten according to scheduled message transformation rule
Senary includes:
Calculate Raw Value, in which:
Raw Value=(Physical Value-Offset)/Factor；
Wherein Physical Value is metric write-in data；Factor is dilution of precision；Offset is offset；
Raw Value is hexadecimal write-in data.
In one embodiment, this method further include:
The Raw Value is split as high eight-bit and eight low.
A kind of controller area network message writing station based on LabVIEW, comprising:
Configuration module carries out host computer for the CAN acquired value module in the CAN tool storage room using LabVIEW initial
Change configuration；
Conversion module, for receiving metric write-in data, and will be metric according to scheduled message transformation rule
Write-in data are converted to hexadecimal；
Package module, for being encapsulated hexadecimal write-in data using the cluster module in the CAN tool storage room of LabVIEW
For CAN message；
Writing module, for enabling the host computer via CAN using the writing module in the CAN tool storage room of LabVIEW
The CAN message is written in CAN bus by card.
In one embodiment, the CAN bus include vehicle body CAN bus, instrument CAN bus, charging CAN bus or
Power CAN bus.
In one embodiment, the configuration module, for utilizing the CAN acquired value in the CAN tool storage room of LabVIEW
The channel CAN is arranged in module；Using the CAN acquired value module in the CAN tool storage room of LabVIEW, baud rate is set；Utilize LabVIEW
CAN tool storage room in CAN acquired value module be arranged language.
In one embodiment, the conversion module, for calculating Raw Value, in which:
Raw Value=(Physical Value-Offset)/Factor；
Wherein Physical Value is metric write-in data；Factor is dilution of precision；Offset is offset；
Raw Value is hexadecimal write-in data.
In one embodiment, the conversion module is also used to the Raw Value being split as high eight-bit and low eight
Position.
It can be seen from the above technical proposal that in embodiments of the present invention, using in the CAN tool storage room of LabVIEW
CAN acquired value module carries out initial configuration to host computer；Metric write-in data are received, and are converted according to scheduled message
Metric write-in data are converted to hexadecimal by rule；Using the cluster module in the CAN tool storage room of LabVIEW by 16 into
The write-in data of system are encapsulated as CAN message；Using the writing module in the CAN tool storage room of LabVIEW, enable host computer via
CAN message is written in CAN bus by CAN card.Therefore, after using embodiment of the present invention, user is without grasping profession
CAPL Programming with Pascal Language knowledge can realize the write-in of CAN message based on the block diagram of LabVIEW, significantly reduce realization difficulty.
Moreover, the host computer based on LabVIEW programming can be used directly to data after using embodiment of the present invention
Physical values are modified, and are operated conveniently.
Detailed description of the invention
Only illustratively description and explain the present invention for the following drawings, not delimit the scope of the invention.
Fig. 1 is the controller area network message wiring method flow chart according to the present invention based on LabVIEW.
Fig. 2 is according to embodiment of the present invention initial configuration schematic diagram.
Fig. 3 is the message transition diagram according to embodiment of the present invention.
Fig. 4 is to encapsulate and be written schematic diagram according to the message of embodiment of the present invention.
Fig. 5 is the controller area network message writing station structure chart according to the present invention based on LabVIEW.
Specific embodiment
In order to which the technical features, objects and effects of invention are more clearly understood, the Detailed description of the invention present invention is now compareed
Specific embodiment, identical label indicates identical part in the various figures.
It is succinct and intuitive in order to what is described, hereafter by describing several representative embodiments come to side of the invention
Case is illustrated.A large amount of details is only used for helping to understand the solution of the present invention in embodiment.However, it will be apparent that of the invention
Technical solution can be not limited to these details when realizing.In order to avoid unnecessarily having obscured the solution of the present invention, Yi Xieshi
It applies mode not described meticulously, but only gives frame.Hereinafter, " comprising " refers to " including but not limited to ", " root
According to ... " refer to " according at least to ..., but be not limited to according only to ... ".Due to the speech habits of Chinese, hereinafter without spy
When not pointing out the quantity of an ingredient, it is meant that the ingredient is either one or more, or can be regarded as at least one.
LabVIEW is a kind of programming development environment developed by American National instrument (NI) company, using graphical
Author language G writes program, and the program of generation is the form of block diagram.The significant difference of LabVIEW and other computer languages are:
Other computer languages are all to generate code using text based language, and LabVIEW uses graphical author language G
Write program.LabVIEW software is the core of NI design platform, and exploitation measures or the ideal chose of control system.
LabVIEW develops environment integrated engineer and scientist's rapid build is various using required multiple types of tools.
It is found by the applicant that: during using the tool software write-in CAN message such as CANoe, it is necessary first to the channel CAN and
Dbc file is configured, and is needed to be grasped certain CAPL Programming with Pascal Language basis and can just be operated.In addition, using CANoe
Equal tool software write-in message needs to convert the data into the laggard row write of hexadecimal and enters, during modification, change data,
It also needs by calculating, converting, it is troublesome in poeration.
Applicant have also found that LabVIEW graphical language can be used and realize programming, letter for CAN message is written
It is single easy to learn, the intuitive intention for reflecting operator.Further, it is possible to use the direct logarithm of host computer based on LabVIEW programming
According to physical values modify, easy to operate, simple, intuitive.
Fig. 1 is the controller area network message wiring method flow chart according to the present invention based on LabVIEW.
As shown in Figure 1, this method comprises:
Step 101: using CAN acquired value (CAN Get Value) module in the CAN tool storage room of LabVIEW to upper
Machine carries out initial configuration.
Step 102: receiving metric write-in data, and according to scheduled message transformation rule by metric write-in number
According to being converted to hexadecimal.
Step 103；Hexadecimal write-in data are encapsulated as CAN report with the cluster module in the CAN tool storage room of LabVIEW
Text.
Step 104: using the writing module in the CAN tool storage room of LabVIEW, enabling host computer will be described via CAN card
CAN message is written in CAN bus.
In one embodiment, CAN bus includes vehicle body CAN bus, instrument CAN bus, charging CAN bus or power
CAN bus.
In one embodiment, host computer is carried out using the CAN acquired value module in the CAN tool storage room of LabVIEW
Initial configuration includes: the CAN acquired value module setting channel CAN in the CAN tool storage room using LabVIEW；Utilize LabVIEW
CAN tool storage room in CAN acquired value module be arranged baud rate；Utilize the CAN acquired value mould in the CAN tool storage room of LabVIEW
Language, etc. is arranged in block.
In one embodiment, according to scheduled message transformation rule by metric write-in data be converted to 16 into
System includes:
Calculate Raw Value, in which:
Raw Value=(Physical Value-Offset)/Factor；
Wherein Physical Value is metric write-in data；Factor is dilution of precision；Offset is offset；
Raw Value is hexadecimal write-in data.
In one embodiment, this method further include: Raw Value is split as high eight-bit and eight low.
Fig. 2 is according to embodiment of the present invention initial configuration schematic diagram.
As shown in Fig. 2, LabVIEW software programming interface can be opened, using its included CAN tool storage room to entire upper
Machine carries out initial configuration, including channel, baud rate, language etc., which can be real by " CAN Get Value " module in library
It is existing.Herein, the demand (for example, data format and baud rate) based on the CAN bus of message destination determines the first of host computer
Beginningization configuration parameter.
Fig. 3 is the message transition diagram according to embodiment of the present invention.
Herein, can turn according to message transformation rule Physical Value=Raw Value*Factor+Offset
Change write-in data.Due to host computer interface incoming message format be 10 systems, i.e. Physical Value, and pass through the channel CAN
Incoming message format is 16 systems, i.e. Raw Value, it is therefore desirable to be converted in a program, to guarantee in the process of running
It directly modifies to the physical values of message, wherein Factor is dilution of precision；Offset is offset.
Herein, it first by the subtracter of Physical Value and Offset tablet pattern, exports as (Physical
Value-Offset).Then, defeated by the divider of (Physical Value-Offset) and the common tablet pattern of Offset
It is out (Physical Value-Offset)/Offset, which is 16 system numbers.Again by patterned splitter, by 16
(Physical Value-Offset)/Offset of system is split as high eight-bit and eight low, thus before message encapsulation i.e.
It can get high eight-bit data and low eight bit data, encapsulated convenient for subsequent CAN message.
Fig. 4 is to encapsulate and be written schematic diagram according to the message of embodiment of the present invention.
Herein, message is written in CAN Write module in the CAN tool storage room carried using LabVIEW, before write-in
Data are written according to the ID of message, type, length, data using " cluster " module in LabVIEW.Then, host computer
Connect CAN tool, that is, writable message.It after the completion of host computer is write, needs to be connected by CAN tool with CAN line, thus real
The write-in and modification of existing message.
Herein, first using " cluster " module in LabVIEW, based on graphic interface by high eight-bit data and eight low
Data are encapsulated as CAN message, wherein increaseing accordingly the data such as message ID, type, length.Then, CAN card is connected, CAN is passed through
CAN message is written toward bus according to the host computer initial configuration being arranged in step 101 based on graphic interface in Write module.
Preferably, CAN card includes CAN controller and CAN transceiver.CAN bus data transmit-receive is complete by CAN controller and CAN transceiver
At.CAN card is used to collect each nodal information in CAN bus and be transmitted to host computer, and host computer order and data are transmitted to
Each node and completion are to the monitoring of custom system part and management work in CAN bus.
Based on foregoing description, embodiment of the present invention also proposed a kind of controller area network report based on LabVIEW
Literary writing station.
Fig. 5 is the controller area network message writing station structure chart according to the present invention based on LabVIEW.
As shown in figure 5, the device includes:
Configuration module 501 carries out just host computer for the CAN acquired value module in the CAN tool storage room using LabVIEW
Beginningization configuration；
Conversion module 502, for receiving metric write-in data, and according to scheduled message transformation rule by the decimal system
Write-in data be converted to hexadecimal；
Package module 503, for using the cluster module in the CAN tool storage room of LabVIEW by hexadecimal write-in data
It is encapsulated as CAN message；
Writing module 504, for enabling host computer via CAN using the writing module in the CAN tool storage room of LabVIEW
The CAN message is written in CAN bus by card.
In one embodiment, CAN bus includes vehicle body CAN bus, instrument CAN bus, charging CAN bus or power
CAN bus, etc..
In one embodiment, configuration module 501 are used for: utilizing the CAN acquired value in the CAN tool storage room of LabVIEW
The channel CAN is arranged in module；Using the CAN acquired value module in the CAN tool storage room of LabVIEW, baud rate is set；Utilize LabVIEW
CAN tool storage room in CAN acquired value module setting language, etc..
In one embodiment, conversion module 502, for calculating Raw Value, in which:
Raw Value=(Physical Value-Offset)/Factor；
Wherein Physical Value is metric write-in data；Factor is dilution of precision；Offset is offset；
Raw Value is hexadecimal write-in data.
In one embodiment, conversion module 502 are also used to the Raw Value being split as high eight-bit and low eight
Position.
In conclusion it can be seen from the above technical proposal that in embodiments of the present invention, utilizing the CAN work of LabVIEW
The CAN acquired value module having in library carries out initial configuration to host computer；Metric write-in data are received, and according to scheduled
Metric write-in data are converted to hexadecimal by message transformation rule；Utilize the cluster module in the CAN tool storage room of LabVIEW
Hexadecimal write-in data are encapsulated as CAN message；Using the writing module in the CAN tool storage room of LabVIEW, enable upper
CAN message is written in CAN bus by machine via CAN card.Therefore, after using embodiment of the present invention, user is without grasping
The CAPL Programming with Pascal Language knowledge of profession can realize the write-in of CAN message based on the block diagram of LabVIEW, significantly reduce realization
Difficulty.
Moreover, the host computer based on LabVIEW programming can be used directly to data after using embodiment of the present invention
Physical values are modified, and are operated conveniently.
It should be noted that step and module not all in above-mentioned each process and each structure chart be all it is necessary, can
To ignore certain steps or module according to the actual needs.Each step execution sequence be not it is fixed, can according to need into
Row adjustment.The division of each module is intended merely to facilitate the division functionally that description uses, and in actual implementation, a module can
It is realized with point by multiple modules, the function of multiple modules can also be realized by the same module, these modules can be located at same
In a equipment, it can also be located in different equipment.
Hardware module in each embodiment mechanically or can be realized electronically.For example, a hardware module
It may include that the permanent circuit specially designed or logical device (such as application specific processor, such as FPGA or ASIC) are specific for completing
Operation.Hardware module also may include programmable logic device or circuit by software provisional configuration (as included general procedure
Device or other programmable processors) for executing specific operation.Mechanical system is used as specific, or using dedicated permanent
Property circuit, or Lai Shixian hardware module (such as is configured) by software using the circuit of provisional configuration, can according to cost with
Temporal consideration is to determine.
The present invention also provides a kind of machine readable storage mediums, and storage is for executing a machine such as the above method
Instruction.Specifically, system or device equipped with storage medium can be provided, store realize above-mentioned reality on the storage medium
The software program code of the function of any embodiment in example is applied, and makes the computer (or CPU or MPU) of the system or device
Read and execute the program code being stored in a storage medium.Further, it is also possible to make to calculate by the instruction based on program code
Operating system of hands- operation etc. completes partly or completely practical operation.The program that can also will be read from storage medium
The extension list being connected to a computer is write in memory set in the expansion board in insertion computer or write to code
In the memory being arranged in member, then the instruction based on program code makes the CPU etc. being mounted on expansion board or expanding element
Come execution part and whole practical operations, to realize the function of any embodiment in above embodiment.
Storage medium embodiment for providing program code include floppy disk, hard disk, magneto-optic disk, CD (such as CD-ROM,
CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), tape, non-volatile memory card and ROM.Selectively,
It can be by communication network from download program code on server computer or cloud.
Detailed displaying and explanation carried out to the present invention above by attached drawing and preferred embodiment, however the present invention is not limited to
These embodiments having revealed that, base could be aware that with above-mentioned multiple embodiment those skilled in the art, can combine above-mentioned difference
Code audit means in embodiment obtain the more embodiments of the present invention, these embodiments also protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of controller area network message wiring method based on LabVIEW characterized by comprising
Initial configuration is carried out to host computer using the CAN acquired value module in the CAN tool storage room of LabVIEW；
Metric write-in data are received, and metric write-in data are converted to 16 according to scheduled message transformation rule
System；
Hexadecimal write-in data are encapsulated as CAN message using the cluster module in the CAN tool storage room of LabVIEW；
Using the writing module in the CAN tool storage room of LabVIEW, enables the host computer and write the CAN message via CAN card
Enter into CAN bus.
2. the controller LAN message wiring method according to claim 1 based on LabVIEW, which is characterized in that
The CAN bus includes vehicle body CAN bus, instrument CAN bus, charging CAN bus or power CAN bus.
3. the controller LAN message wiring method according to claim 1 based on LabVIEW, which is characterized in that
CAN acquired value module in the CAN tool storage room using LabVIEW carries out initial configuration to host computer and includes:
Using the CAN acquired value module in the CAN tool storage room of LabVIEW, the channel CAN is set；
Using the CAN acquired value module in the CAN tool storage room of LabVIEW, baud rate is set；
Using the CAN acquired value module in the CAN tool storage room of LabVIEW, language is set.
4. the controller LAN message wiring method according to claim 1 based on LabVIEW, which is characterized in that institute
It states and metric write-in data are converted into hexadecimal according to scheduled message transformation rule include:
Calculate Raw Value, in which:
Raw Value=(Physical Value-Offset)/Factor；
Wherein Physical Value is metric write-in data；Factor is dilution of precision；Offset is offset；Raw
Value is hexadecimal write-in data.
5. the controller LAN message wiring method according to claim 4 based on LabVIEW, which is characterized in that should
Method further include:
The Raw Value is split as high eight-bit and eight low.
6. a kind of controller area network message writing station based on LabVIEW characterized by comprising
Configuration module carries out initialization to host computer for the CAN acquired value module in the CAN tool storage room using LabVIEW and matches
It sets；
Conversion module, for receiving metric write-in data, and according to scheduled message transformation rule by metric write-in
Data are converted to hexadecimal；
Hexadecimal write-in data are encapsulated as by package module for the cluster module in the CAN tool storage room using LabVIEW
CAN message；
Writing module, for using the writing module in the CAN tool storage room of LabVIEW, enabling the host computer will via CAN card
The CAN message is written in CAN bus.
7. the controller area network message writing station according to claim 6 based on LabVIEW, which is characterized in that
The CAN bus includes vehicle body CAN bus, instrument CAN bus, charging CAN bus or power CAN bus.
8. the controller area network message writing station according to claim 6 based on LabVIEW, which is characterized in that
The configuration module, for the channel CAN to be arranged using the CAN acquired value module in the CAN tool storage room of LabVIEW；It utilizes
Baud rate is arranged in CAN acquired value module in the CAN tool storage room of LabVIEW；It is obtained using the CAN in the CAN tool storage room of LabVIEW
Language is arranged in value module.
9. the controller area network message writing station according to claim 6 based on LabVIEW, which is characterized in that
The conversion module, for calculating Raw Value, in which:
Raw Value=(Physical Value-Offset)/Factor；
Wherein Physical Value is metric write-in data；Factor is dilution of precision；Offset is offset；Raw
Value is hexadecimal write-in data.
10. the controller area network message writing station according to claim 9 based on LabVIEW, feature exist
In,
The conversion module is also used to for the Raw Value being split as high eight-bit and eight low.
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| CN201811119114.2A CN109547309A (en) | 2018-09-25 | 2018-09-25 | A kind of controller LAN message wiring method and device based on LabVIEW |
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| CN201811119114.2A CN109547309A (en) | 2018-09-25 | 2018-09-25 | A kind of controller LAN message wiring method and device based on LabVIEW |
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| CN111179467A (en) * | 2019-12-28 | 2020-05-19 | 一汽解放汽车有限公司 | Vehicle data display method, device, equipment and storage medium |
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