CN107135210A - A kind of simulative automobile communications protocol resolver and its analytic method - Google Patents
A kind of simulative automobile communications protocol resolver and its analytic method Download PDFInfo
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- CN107135210A CN107135210A CN201710274286.6A CN201710274286A CN107135210A CN 107135210 A CN107135210 A CN 107135210A CN 201710274286 A CN201710274286 A CN 201710274286A CN 107135210 A CN107135210 A CN 107135210A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/03—Protocol definition or specification
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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
- H04L12/40013—Details regarding a bus controller
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/02—Protocol performance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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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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Abstract
The invention discloses a kind of simulative automobile communications protocol resolver, including parsing end, diagnose end and diagnosing protocol interface, the form in the protocol data source that the frame sequence form that diagnosis end is used for the request diagnosing protocol for sending the parsing end is read with the diagnosing protocol interface is compared judgement, diagnostic test data are returned to parsing end simultaneously and carry out protocol analysis and visualize to show by the diagnosis end, the data generated after protocol analysis are packed and agreement frame sequential data is sent to diagnosis end in the parsing end, and disclose its analytic method, parsing end sends diagnosing protocol to diagnosis end, and sentence whether parsing end needs to carry out protocol analysis request, diagnose end increases protocol identifier to the different functional module in parsing end, diagnose the specific function identifier that difference in functionality module is read at end, identifier is changed according to the prompt message of difference in functionality module.The automobile resolver of the present invention can quickly collect the fault message of automobile and generate commands in return, substantially reduce the pseudotime.
Description
Technical field
The present invention relates to automotive electronics detection technique field, more particularly to a kind of simulative automobile communications protocol resolver and its solution
Analysis method.
Background technology
Vehicle diagnosis is the essential link of automobile industry, and XML resources and program development mode are to be currently based on PC
Or the main flow development scheme that the system diagnostics instrument such as Android is set, improve constantly, opened with automotive test with the recoverable amount of automobile
The related OBD instrument of hair has also obtained rapidly developing, " onboard diagnostic system：On-Board Diagnostic, abbreviation
For：OBD”.OBD instrument (OBD) can monitor the operation conditions of engine at any time, once find to be possible to cause failure
Situation, can send warning at once, thus the indispensable instrument as light-duty vehicle.Usually, being provided with automobile is used to record
Automobile engine operation conditions and and its each processing system each time segment data OBD interfaces, by using vehicle failure
Diagnostic equipment is connected reading data with the OBD interfaces on automobile, is then connected again by data wire with computer, shows read number
According to.In addition, engineer generally required when to vehicle failure test development by automobile fault diagnostic apparatus and automobile ECU simulator,
Computer and external power supply, which are connected, to be used, as shown in figure 1, topmost workload is in automobile diagnostic software development process
XML resources are filled in, XML resources are the important components of automobile diagnostic software, a small amount of interruption and processing routine code is added
XML resources as inhomogeneity can constitute the diagnostic software for covering thousands of brand vehicles, however, filling in XML resources is again
One time-consuming and troublesome work, fills in that efficiency is too low manually, and research staff is also easy to fatigue, easily error, at the same time, respectively
New manufacturer, the continuous production of new model car, the automobile ECU simulator fault message included of diagnostic equipment will be increasingly
Many, moreover, Ge Xin manufacturers, new model car can there is a situation where incompatible, therefore, failure diagnosis information can take memory space
Will be bigger, more diagnostic equipment memory spaces are wasted, therefore, developing a can automatically generate XML resources and automatic raw
Into auxiliary development instrument-protocol resolver of the resource of simulated automotive ECU software, reach and constantly expand diagnosis development object
Purpose, can greatly shorten the time that XML resources and automobile ECU simulation resource are filled in vehicle diagnosis development process,
Improve efficiency and accuracy.
The content of the invention
It is an object of the invention to provide a kind of simulative automobile communications protocol resolver and its analytic method, according to the present invention
Analog communication protocol resolver can greatly shorten XML resources and automobile ECU mould are filled in vehicle diagnosis development process
Intend the time of resource, improve efficiency and accuracy, to achieve these goals, the present invention uses following technique effect：
A kind of simulative automobile communications protocol resolver is provided according to an aspect of the present invention, it is characterised in that：Including solution
End, diagnosis end and diagnosing protocol interface are analysed, the diagnosis end is used for the frame sequence for the request diagnosing protocol for sending the parsing end
The form in the protocol data source that column format is read with the diagnosing protocol interface is compared judgement, then by the knot of multilevel iudge
Fruit is tested and generates diagnostic test data, and diagnostic test data are returned to the parsing end simultaneously and assisted by the diagnosis end
View parsing and visualization display, the data generated after protocol analysis are packed at the parsing end, and are used as protocol frame sequence number
End is diagnosed according to being sent to.
It is preferred that, the parsing end include XML generation modules, sending module, agreement sorting module, response processing module,
Receiving module, sending module, flag of frame module and clock module, the receiving module are used for reception diagnosis end and send request diagnosis
Diagnostic test data cached and pre-processed and sent to response processing module, the response processing module be used for receive
To response frame parsed and judged according to the form of frame, and analysis result is subjected to visualization display and is sent to described
Agreement sorting module carries out agreement verification, and the agreement sorting module carries out whether just agreement verifies the response frame to analysis result
Really and output protocol check results, the XML generation modules be used for test protocol sorting module export agreement check results with
The flag of frame position of flag of frame module output, and judge whether correct per frame data, judge further according to every flag of frame position per frame data
Legitimacy, what the protocol data that XML generation modules are tested was packed and produced according to clock module by the sending module
Clock source timing sends agreement frame sequence to diagnosis end.
It is preferred that, the diagnosing protocol interface is OBD communication interface agreements.
It is preferred that, the diagnosis end includes agreement memory module and is in communication with each other the vapour being connected with agreement memory module
Car ECU simulators, agreement storage mould physical layer respectively with parsing end transmitting-receiving port, automobile ECU simulator protocol interface
Realize drive control.
According to another aspect of the present invention there is provided a kind of analytic method of simulative automobile communications protocol resolver, including
Following steps：
Step one：Parsing end sends diagnosing protocol to diagnosis end, and sentences whether parsing end needs to carry out protocol analysis request,
If there is analysis request, the protocol data result of parsing is shown by visualization interface, and agreement is increased by visualization interface
The protocol identifier of frame sequence, then solves protocol data according to protocol identifier；
Step 2：Diagnose end increases protocol identifier to the different functional module in parsing end, judges each work(parsed
Whether energy module will increase specific function identifier and solve protocol data file, direct if specific function identifier is not added with
Carry out protocol identifier and solve protocol data file, if having added specific function identifier, the reading of specific identification symbol is set
Mode is taken, protocol data file is solved further according to specific identification symbol；
Step 3：The specific function identifier of difference in functionality module is read, is repaiied according to the prompt message of difference in functionality module
Change identifier, otherwise return to step two according to the general markup language of the structural generation of parsing and exports resolution file；
It is preferred that, protocol data file is solved in the step 2 to be included：
The protocol data file that b1, parsing end are received is sentenced with the default protocol characteristic of agreement memory module in diagnosis end
Whether break has the agreement of matching, the agreement memory module text of data standard containing various protocols；
If b2, having match protocol, agreement is carried out according to the protocol specification text corresponding to the default protocol characteristic
Parsing；Otherwise, the protocol specification text Run Script that is provided according to the parsing end simultaneously automatically generates XML resources, and by institute
The XML resource conservations of generation are stated into the agreement memory module.
It is preferred that, the XML resources contain the title of data flow, protocol conversion calculation formula, data display mode, aobvious
Show unit and corresponding order data.
Present invention employs above-mentioned technical proposal, the present invention has following technique effect：
(1), simulative automobile communications protocol resolver of the invention can quickly collect the fault message of automobile, and can be automatic
Simulated automotive ECU communication protocol commands reply test, automatically generate simulated automotive ECU commands in return, substantially reduce automobile ECU
Simulated time, improves the efficiency and accuracy rate of vehicle diagnosis, with good use value.It can reach and constantly expand diagnosis pair
The purpose of elephant, can greatly shorten the time that XML resources are filled in vehicle diagnosis development process, improves efficiency and standard
True property, reduces development cost and debugging cost, shortens the construction cycle.
(2) simulation of automobile communication, is formed between simulative automobile communications protocol resolver and automobile ECU of the present invention
Signal, it is to avoid could to complete to communicate by connection between substantial amounts of wire harness and the extra diagnostic equipment of exploitation and automobile ECU
The problem of diagnosis, the use of wire harness is reduced, improve parsing and diagnostic test efficiency.
Brief description of the drawings
Fig. 1 is existing simulated automotive fault diagnosis principle structure chart；
Fig. 2 is a kind of schematic diagram of simulative automobile communications protocol resolver of the present invention；
Fig. 3 is a kind of analytic method flow chart of simulative automobile communications protocol resolver of the present invention；
Embodiment
For the objects, technical solutions and advantages of the present invention are more clearly understood, referring to the drawings and preferred reality is enumerated
Example is applied, the present invention is described in more detail.However, it is necessary to which many details listed in explanation, specification are only to be
Reader is set to have a thorough explanation to the one or more aspects of the present invention, even without these specific details can also
Realize the aspects of the invention.
As shown in Fig. 2 there is provided a kind of simulative automobile communications protocol resolver, including solution according to an aspect of the present invention
End, diagnosis end and diagnosing protocol interface are analysed, the diagnosing protocol interface is OBD communication interface agreements, and the diagnosis end is used for will
The protocol data source that the frame sequence form for the request diagnosing protocol that the parsing end is sent is read with the diagnosing protocol interface
Form is compared judgement, then tests the result of multilevel iudge and generates diagnostic test data, the diagnosis end will compare
Tested after the result generation data message relatively judged, then test result is generated into diagnostic test data, the diagnosis end is simultaneously
Diagnostic test data are returned into the parsing end and carry out protocol analysis and visualization display, the parsing end will be raw after protocol analysis
Into data packed, and using the data of packing as agreement frame sequential data be sent to diagnosis end.
In the present invention, as shown in Fig. 2 the parsing end include XML generation modules, sending module, agreement sorting module,
Response processing module, receiving module, sending module, flag of frame module and clock module, the receiving module, which is used to receive, to be diagnosed
The diagnostic test data that end sends request diagnosis are cached and pre-processed and sent to response processing module, the response processing
Module is used to the response frame received is parsed and judged according to the form of frame, and analysis result progress visualization is shown
And the agreement sorting module progress agreement verification is sent to, the agreement sorting module carries out agreement verification institute to analysis result
The whether correct simultaneously output protocol check results of response frame are stated, the XML generation modules are used for what test protocol sorting module was exported
The flag of frame position that agreement check results are exported with flag of frame module, and judge whether correct per frame data, further according to every flag of frame
Position judge per frame data legitimacy, the sending module by the protocol data that XML generation modules are tested packed and according to
The clock source timing that clock module is produced sends agreement frame sequence to diagnosis end；Agreement sorting module will can all be carried out per frame data
Check test correctness, the agreement sorting module can according to actual conditions every frame ordinal number according to or frame sequential data flag of frame
Increase specific identification symbol decision before position, and judge whether each specific identification symbol is legitimacy, and wherein specific identification symbol refers to
With read failure code, DTC, reading data flow are removed, element test function will perform specific identification symbol test.
The diagnosis end includes agreement memory module and the automobile ECU mould being connected is in communication with each other with agreement memory module
Intend device, the physical layer of agreement storage mould is realized and driven with parsing the transmitting-receiving port at end, the protocol interface of automobile ECU simulator respectively
Control, physical layer is responsible for protocol data tissue framing, and completes the form in protocol data source and be compared judgement, then will compare
Relatively judge result tested and generate diagnostic test data, Internet to receiving the diagnostic test data from physical layer,
And the transmission path of corresponding protocol data information is parsed, data transfer layer is each one frame mark of protocol data information bandage
Application layer is sent to behind will position to be stored.Sending module by the protocol data that XML generation modules are tested packed and according to
The clock source timing that clock module is produced sends agreement frame sequence to diagnosis end, according to the request of agreement and by protocol data tissue
After packed, top from agreement memory module is successively transmitted downwards, respectively through application layer, data transfer layer, Internet,
Physical layer carries out successively packing encapsulation, finally reaches physical layer and realizes that agreement request is transmitted.After application layer data is packaged, often
Protocol data is handed to last layer by layer by regulation frame, when reaching application layer, final protocol data information is taken out, so
With regard to having carried out bed-by-bed analysis and parsing to physical layer, Internet, data transfer layer and application layer respectively, whole parsing is also completed
Process.
As shown in figure 3, there is provided a kind of parsing of simulative automobile communications protocol resolver according to another aspect of the present invention
Method, comprises the following steps：
Step one：Parsing end sends diagnosing protocol to diagnosis end, and sentences whether parsing end needs to carry out protocol analysis request,
If there is analysis request, the protocol data result of parsing is shown by visualization interface, and agreement is increased by visualization interface
The protocol identifier of frame sequence, then solves protocol data according to protocol identifier；
Step 2：Diagnose end increases protocol identifier to the different functional module in parsing end, judges each work(parsed
Whether energy module will increase specific function identifier and solve protocol data file, direct if specific function identifier is not added with
Carry out protocol identifier and solve protocol data file, if having added specific function identifier, the reading of specific identification symbol is set
Mode is taken, protocol data file is solved further according to specific identification symbol；
Step 3：The specific function identifier that difference in functionality module is read at end is diagnosed, according to the prompting of difference in functionality module
Information changes identifier, and otherwise return to step two according to the general markup language of the structural generation of parsing and exports resolution file；
In the present invention, protocol data file is solved in the step 2 includes：
The protocol data file that b1, parsing end are received is sentenced with the default protocol characteristic of agreement memory module in diagnosis end
Whether break has the agreement of matching, the agreement memory module text of data standard containing various protocols, including standard CAN protocol
The version of an agreement such as text, extension CAN protocol text, KWP2000 version of an agreement；
If b2, having match protocol, agreement is carried out according to the protocol specification text corresponding to the default protocol characteristic
Parsing；Otherwise, the protocol specification text Run Script that is provided according to the parsing end simultaneously automatically generates XML resources, and by institute
The XML resource conservations of generation are stated into the agreement memory module, the XML resources contain the title of data flow, agreement and turned
Change calculation formula, data display mode, the unit of display and corresponding order data.
The corresponding order data of generation that the resolver of the present invention can be changed stream name according to XML format,
XML resource formats are completed after conversion, and the test module of resolver will perform transformation result storage, storage according to file format
Mode is that XML resource formats are stored, because order data generation is generated according to form, to meet OBD communications association
View interface realize that external device is read out, therefore, if there is provided the form of file destination, resolver just can according to about
Fixed communications protocol carries out generation XML resource formats to destination file format, during protocol analysis, it is only necessary to by agreement
The work for by certain form arrange and follow-up call format is changed, the form of generation would is that unification, agreement solution
Analyse code reliability high, it is possible to reduce high-volume repetitive work, can very big lifting operating efficiency, agreement arranges process
It is the order addition specific identification symbol to data flow (per frame ordinal number according to or frame sequential data), then to data flow name, current
Added before value, key bytes, protocol conversion calculation formula, data display mode, the unit of display and corresponding order data special
Different mark, so far, form collator just finishes, and resolver can be generated order according to specific format, then parse data
Title is flowed, resolver can be matched specific identification symbol and corresponding title, then according to the corresponding key bytes of data flow
With correspondence order, the address of corresponding order and key bytes is generated, sets diagnosis end to send diagnosing protocol data, and sentence solution solution
Whether analysis end is needed to carry out protocol analysis, and the protocol data of parsing is shown by visualization interface.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of simulative automobile communications protocol resolver, it is characterised in that：Including parsing end, diagnosis end and diagnosing protocol interface,
The frame sequence form that the diagnosis end is used for the request diagnosing protocol for sending the parsing end is read with the diagnosing protocol interface
The form in the protocol data source taken is compared judgement, then tests the result of multilevel iudge and generates diagnostic test number
According to diagnostic test data are returned to the parsing end simultaneously and carry out protocol analysis and visualization display, the parsing by the diagnosis end
The data generated after protocol analysis are packed and agreement frame sequential data is sent to diagnosis end in end.
2. a kind of simulative automobile communications protocol resolver according to claim 1, it is characterised in that：The parsing end includes
XML generation modules, sending module, agreement sorting module, response processing module, receiving module, sending module, flag of frame module and
Clock module, the diagnostic test data that the receiving module sends request diagnosis for receiving diagnosis end are cached and pre-processed
And send to response processing module, the response processing module is used to parse the response frame received according to the form of frame
And judgement, and analysis result is subjected to visualization display and the agreement sorting module progress agreement verification, the association is sent to
Discuss sorting module and the agreement verification response frame whether correct simultaneously output protocol check results, the XML are carried out to analysis result
Generation module is used for agreement check results and the flag of frame position of flag of frame module output that test protocol sorting module is exported, and sentences
It is disconnected whether correct per frame data, judge the legitimacy per frame data further according to every flag of frame position, the sending module generates XML
The clock source timing that the protocol data of module testing is packed and produced according to clock module sends protocol frame sequence to diagnosis end
Row.
3. a kind of simulative automobile communications protocol resolver according to claim 1, it is characterised in that：The diagnosing protocol connects
Mouth is OBD communication interface agreements.
4. a kind of simulative automobile communications protocol resolver according to claim 1, it is characterised in that：The diagnosis end includes
Agreement memory module and the automobile ECU simulator being connected is in communication with each other with agreement memory module, agreement stores the physics of mould
Layer realizes drive control with parsing the transmitting-receiving port at end, the protocol interface of automobile ECU simulator respectively.
5. a kind of analytic method of simulative automobile communications protocol resolver, it is characterised in that：Comprise the following steps：
Step one：Parsing end sends diagnosing protocol to diagnosis end, and sentences whether parsing end needs to carry out protocol analysis request, if having
Analysis request, the protocol data result of parsing is shown by visualization interface, and increases protocol frame sequence by visualization interface
The protocol identifier of row, then solves protocol data according to protocol identifier；
Step 2：Diagnose end increases protocol identifier to the different functional module in parsing end, judges each function mould parsed
Whether block will increase specific function identifier and solve protocol data file, directly be carried out if specific function identifier is not added with
Protocol identifier solves protocol data file, if having added specific function identifier, sets the reading side of specific identification symbol
Formula, protocol data file is solved further according to specific identification symbol；
Step 3：The specific function identifier that difference in functionality module is read at end is diagnosed, according to the prompt message of difference in functionality module
Identifier is changed, otherwise return to step two according to the general markup language of the structural generation of parsing and exports resolution file.
6. a kind of analytic method of simulative automobile communications protocol resolver according to claim 4, it is characterised in that：It is described
Protocol data file is solved in step 2 to be included：
The protocol data file that b1, parsing end are received carries out judgement with the default protocol characteristic of agreement memory module in diagnosis end
The no agreement for having a matching；
If b2, having match protocol, protocol analysis is carried out according to the protocol specification text corresponding to the default protocol characteristic；
Otherwise, the protocol specification text Run Script that is provided according to the parsing end simultaneously automatically generates XML resources, and by the generation
XML resource conservations into the agreement memory module.
7. a kind of analytic method of simulative automobile communications protocol resolver according to claim 6, it is characterised in that：It is described
XML resources contain the title of data flow, protocol conversion calculation formula, data display mode, the unit of display and corresponding life
Make data.
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| CN109474621B (en) * | 2018-12-18 | 2021-03-02 | 四川格物智享科技有限公司 | Module and method for converting communication protocol into visible object label |
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