CN106950948A - A kind of vehicle CAN Communication diagnostic logger and system - Google Patents
A kind of vehicle CAN Communication diagnostic logger and system Download PDFInfo
- Publication number
- CN106950948A CN106950948A CN201710380283.0A CN201710380283A CN106950948A CN 106950948 A CN106950948 A CN 106950948A CN 201710380283 A CN201710380283 A CN 201710380283A CN 106950948 A CN106950948 A CN 106950948A
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- Prior art keywords
- vehicle
- cpu
- communication
- logger
- message data
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0267—Fault communication, e.g. human machine interface [HMI]
Abstract
The invention discloses a kind of vehicle CAN Communication diagnostic logger and system, including onboard diagnostic system OBD connectors, CAN transceiver, CPU, memory and communication module, the OBD interfaces connection of OBD connectors and vehicle；CAN transceiver is connected with OBD connectors and CPU respectively, is sent for receiving the message that vehicle is sent in real time, and message being converted into TTL signal to CPU；CPU is used to receive TTL signal, and TTL signal is converted into message data and preserved to memory, is additionally operable to read message data from memory and sends message data by communication module.The register designs are compact and portable, and the real-time record of message data can be carried out by being inserted on the OBD interfaces of vehicle, provide first-hand data for later vehicle trouble case study, facilitate the lifting of vehicle electric element functional development quality.The system that the present invention is provided has above-mentioned advantage.
Description
Technical field
The present invention relates to car fault diagnosis technical field, more particularly to a kind of vehicle CAN Communication diagnostic logger and
System.
Background technology
With the configuration more and more higher of vehicle, the quantity of controller and electrical appliance is also more and more, in vehicle the examination of road and use
During the use of family, developer or user will often find that some sporadic electrical function failures.It is this sporadic
The functional fault of electric system, due to the sporadic of phenomenon of the failure and not reproducibility, it is difficult to catch problematic phenomenon, for point
Analysis failure cause, it is necessary to be recorded, but lack logical for vehicle network in currently available technology in real time to vehicle network communication
The technology of the real-time record of news.
In order to solve the above technical problems, the main methods of vehicle are to repeat car by developer both at home and abroad at present
To reappear phenomenon of the failure, while connecting using with vehicle OBD (On-Board Diagnostic, onboard diagnostic system) interface
The computer that connects carries out the artificial monitoring of vehicle packet network, to be out of order phenomenon reason according to the message analysis of monitoring.But by
In linear sporadic of failure, can the phenomenon that break down again be unknown, causes substantial amounts of waste of human resource, influence
The lifting of vehicle electric element functional development quality.
Therefore, how to provide a kind of scheme for solving above-mentioned technical problem is that those skilled in the art need solution at present
Problem.
The content of the invention
It is an object of the invention to provide a kind of vehicle CAN Communication diagnostic logger, the idagnostic logout device that the present invention is provided is set
Meter is compact and portable, and the real-time record of message data can be carried out by being inserted on the OBD interfaces of vehicle, be that later vehicle trouble is asked
Topic analysis provides first-hand data, facilitates the lifting of vehicle electric element functional development quality；It is a further object of the present invention to provide one kind
Vehicle CAN Communication diagnostic record system including above-mentioned vehicle CAN Communication diagnostic logger, with the excellent of such as above-mentioned logger
Point.
In order to solve the above technical problems, the invention provides a kind of vehicle CAN Communication diagnostic logger, including OBD
System OBD connectors, CAN transceiver, CPU, memory and communication module, wherein：
The OBD interfaces connection of the OBD connectors and vehicle；
The CAN transceiver is connected with the OBD connectors and the CPU respectively, is sent out in real time for receiving the vehicle
The message sent, and the message is converted into TTL signal sent to the CPU；
The CPU is connected with the memory and the communication module respectively, for receiving the TTL signal, and by institute
State TTL signal to be converted to message data and preserve to the memory, be additionally operable to read the message number from the memory
Sent according to and by the message data by the communication module, so that user is former according to message data analysis failure
Cause.
Preferably, the CPU is additionally operable to preserve monitored object database, and the monitored object database includes monitored object
ID, the process of the reception TTL signal is specially：
Receive TTL signal corresponding with the monitored object ID.
Preferably, the CPU is additionally operable to receive the new ID addresses that host computer is sent, and the new ID addresses are write
In the monitored object database；
Or, the new monitored object database that host computer is sent is received, and the new monitored object database is replaced
Change original monitored object database.
Preferably, the communication module is USB interface or WiFi module.
Preferably, when the CPU is additionally operable to be connected to the sleep frame of the vehicle transmission within the time of continuous preset duration
Into resting state.
Preferably, the CPU is additionally operable to enter monitor state when receiving the wake-up association that the vehicle is sent.
In order to solve the above technical problems, present invention also offers a kind of vehicle CAN Communication diagnostic record system, including as above
Described vehicle CAN Communication diagnostic logger is stated, also including the host computer on computer and the computer, the host computer includes holding
Row module, for being managed according to user instruction to the message data that the computer is obtained from the logger.
Preferably, the performing module includes：
Log-in module, for being just use when receiving the account of user's transmission and password and the account and correct password
Family provides host computer administration authority.
Preferably, the performing module also includes data inquiry module, the query statement for receiving user's transmission, and root
Corresponding message data is searched according to the query statement, the query statement includes date inquiries and instructed and/or ID query statements.
Preferably, the performing module is additionally included in line and writes with a brush dipped in Chinese ink module, for receiving the new ID addresses of user's write-in
Or during object monitor database, correspondingly write with a brush dipped in Chinese ink the new ID addresses or object monitor database into the logger
In.
Patched the invention provides a kind of vehicle CAN Communication diagnostic logger and system, including onboard diagnostic system OBD
The OBD interfaces connection of part, CAN transceiver, CPU, memory and communication module, OBD connectors and vehicle；CAN transceiver is distinguished
Be connected with OBD connectors and CPU, for receiving the message that vehicle is sent in real time, and by message be converted to TTL signal send to
CPU；CPU is connected with memory and communication module respectively, and message data is converted to simultaneously for receiving TTL signal, and by TTL signal
Preserve to memory, be additionally operable to read message data from memory and send message data by communication module, with
Just user is according to message data analyzing failure cause.
It can be seen that, the idagnostic logout device design that the present invention is provided is compact and portable, and being inserted on the OBD interfaces of vehicle to be carried out
The real-time record of message data, provides first-hand data for later vehicle trouble case study, facilitates vehicle electric element functional development
The lifting of quality.
In addition, the vehicle CAN Communication diagnostic record system that the present invention is provided is except including above-mentioned vehicle CAN Communication diagnostic note
Device is recorded, also including host computer, facilitates user to be managed by host computer to obtained message data.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to institute in prior art and embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
A kind of structural representation for vehicle CAN Communication diagnostic logger that Fig. 1 provides for the present invention；
A kind of hardware structure diagram for vehicle CAN Communication diagnostic logger that Fig. 2 provides for the present invention.
Embodiment
The core of the present invention is to provide a kind of vehicle CAN Communication diagnostic logger, and the idagnostic logout device that the present invention is provided is set
Meter is compact and portable, and the real-time record of message data can be carried out by being inserted on the OBD interfaces of vehicle, be that later vehicle trouble is asked
Topic analysis provides first-hand data, facilitates the lifting of vehicle electric element functional development quality；It is a further object of the present invention to provide one kind
Vehicle CAN Communication diagnostic record system including above-mentioned vehicle CAN Communication diagnostic logger, with the excellent of such as above-mentioned logger
Point.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 and Fig. 2 are refer to, wherein, a kind of structure for vehicle CAN Communication diagnostic logger that Fig. 1 provides for the present invention
Schematic diagram, a kind of hardware structure diagram for vehicle CAN Communication diagnostic logger that Fig. 2 provides for the present invention.The logger includes car
Diagnostic system OBD connectors 1, CAN transceiver 2, CPU3, memory 4 and communication module 5 are carried, wherein：
OBD connectors 1 are connected with the OBD interfaces of vehicle；
Specifically, OBD connectors 1 can be directly inserted in the male end on the OBD interfaces of vehicle.Logger passes through vehicle
HS-CAN, MS-CAN of OBD interfaces are come to the logical of vehicle CAN network (including the power CAN and vehicle body CAN communicated for vehicle)
News record is stored.
CAN transceiver 2 is connected with OBD connectors 1 and CPU3 respectively, for receiving the message that vehicle is sent in real time, and will
Message is converted to TTL signal and sent to CPU3；
Specifically, after the logger in the application is plugged on vehicle OBD interfaces, the message of vehicle CAN network can be with difference
Sub-signal form enters CAN transceiver 2 via OBD interfaces, and the TTL that message is converted to CPU3 and can recognized by CAN transceiver 2 believes
Number and send CPU3 to.
CPU3 is connected with memory 4 and communication module 5 respectively, and report is converted to for receiving TTL signal, and by TTL signal
Literary data are simultaneously preserved to memory 4, be additionally operable to read message data from memory 4 and message data is passed through into communication module 5
Send, so that user is according to message data analyzing failure cause.
Specifically, TTL signal can be converted to message data and be stored in memory 4 by CPU3 when receiving TTL signal
In, and the logger can also be by setting up communication connection, and the acquisition report from memory 4 between communication module 5 and host computer
Literary data send message data to host computer, so that user carries out accident analysis according to message data.
As a kind of preferred embodiment, CPU3 is additionally operable to preserve monitored object database, and monitored object database includes
Monitored object ID, receive TTL signal process be specially：
Receive TTL signal corresponding with monitored object ID.
Specifically, because CAN transceiver 2 can send all messages in vehicle CAN network to CPU3, but CPU3 is not
These messages can be all stored to memory 4, on the one hand, there are some useless messages in these messages, on the other hand, reduced
The occupancy of memory 4.Therefore, CPU3 can only receive the message that monitored object sends or received in monitored object database.
As a kind of preferred embodiment, CPU3 is additionally operable to receive the new ID addresses that host computer is sent, and by new ID
In address write-in monitored object database；
Or, the new monitored object database that host computer is sent is received, and new monitored object database is replaced
Original monitored object database.
In view of in practical application, on the one hand, the controllers of different automobile types is different, namely monitored object ID be it is different,
In order to suitable for various vehicles, it is necessary to realize the scalability of monitored object database；On the other hand, different vapour
When car production firm records the vehicle CAN communication information that it is produced using this logger, due to each main engine plants' CAN communication square
Battle array belongs to core business secret, it is also desirable to which independent development monitors the monitored object database of message, is write with a brush dipped in Chinese ink by host computer into note
Record in device, the vehicle produced to it is monitored, therefore needs also exist for realizing the scalability of monitored object database.
, for the convenience of the user can be according to actual needs to monitored object database entirety or monitored object data based on this
Part monitored object ID in storehouse is updated, and the CPU3 in the application also has writes with a brush dipped in Chinese ink function online, and specifically, CPU3 can
The ID addresses for the new monitored object that host computer is sent are received, and new ID addresses are write in monitored object database；Or,
The new monitored object database that host computer is sent is received, and new monitored object database is replaced into original monitored object number
According to storehouse.
As a kind of preferred embodiment, communication module 5 is USB interface or WiFi module.
When communication module 5 be USB interface when, logger can be plugged on notebook computer by USB interface, CPU3 from
Message data is recalled in memory 4 and the host computer of notebook computer is sent to by USB interface, can be preserved via host computer
Into EXCEL forms.In addition, during the logger expanding monitoring object database, database file can be entered by USB interface brush
CPU3。
Certainly, communication module 5 here can also be other kinds of communication module 5, and the present invention does not do special herein
Limit.
As a kind of preferred embodiment, CPU3 is additionally operable to be connected to stopping for vehicle transmission within the time of continuous preset duration
Enter resting state during dormancy frame.
To reduce the electrical loss of logger, the CPU3 of logger is connected to vehicle transmission within the time of continuous preset duration
During sleep frame, then into resting state.
In addition, continuous preset duration here can be 10s, it is, of course, also possible to be other numerical value, according to actual conditions come
It is fixed.
As a kind of preferred embodiment, CPU3 is additionally operable to enter monitoring shape when receiving the wake-up association of vehicle transmission
State.
To guarantee timely to enter monitor state, CPU3 can also be rapid when receiving the wake-up association of vehicle transmission
Into monitor state.
Specifically, in the logger provided using the application, the OBD interfaces of logger can be plugged into vehicle OBD
Interface, sets up with vehicle CAN network and communicates.Electricity can monitor vehicle message after initialization on logger, if vehicle CAN
No signal if vehicle CAN network remains unchanged is received after sleep frame 10s after net dormancy 10s, then logger enters automatically
Enter resting state, otherwise continue to record；When the logger for entering resting state receives the wake-up frame signal of vehicle CAN network
It can then be waken up in time to be monitored vehicle CAN network.
When needing to read data in logger, logger is removed, can be with by after USB plug and notebook computer grafting
Data storage therein is read out by host computer and EXCEL forms are stored into notebook computer, facilitates exploit person
Member is analyzed；In addition, the CPU3 into logger can be write with a brush dipped in Chinese ink expansible monitored object database by host computer, from
And realize logger and be directed to the applicability of different automobile types.
Received the invention provides a kind of vehicle CAN Communication diagnostic logger, including onboard diagnostic system OBD connectors, CAN
Send out device, CPU, memory and communication module, the OBD interfaces connection of OBD connectors and vehicle；CAN transceiver is patched with OBD respectively
Part and CPU connections, send to CPU for receiving the message that vehicle is sent in real time, and message being converted into TTL signal；CPU distinguishes
It is connected with memory and communication module, for receiving TTL signal, and TTL signal is converted into message data and preserved to storage
Device, is additionally operable to read message data from memory and sends message data by communication module, so as to user's foundation
Message data analyzing failure cause.
It can be seen that, the idagnostic logout device design that the present invention is provided is compact and portable, and being inserted on the OBD interfaces of vehicle to be carried out
The real-time record of message data, provides first-hand data for later vehicle trouble case study, facilitates vehicle electric element functional development
The lifting of quality.
Present invention also offers a kind of vehicle CAN Communication diagnostic record system, the system is logical including vehicle CAN described above
Idagnostic logout device is interrogated, also including the host computer on computer and computer, host computer includes performing module, for according to user instruction pair
The message data that computer is obtained from logger is managed.
Specifically, the message data that staff can be recorded by host computer to logger is managed, with to vehicle
Failure analyzed.
As a kind of preferred embodiment, performing module includes：
Log-in module, for just being carried when receiving the account of user's transmission and password and account and correct password for user
For host computer administration authority.
In order to improve the security performance of the system, the system is also provided with log-in module, if it is desired to obtain logger
Message data, it is necessary to login the account and password of oneself, and when account and correct password, message data could be managed
Reason.
As a kind of preferred embodiment, performing module also includes data inquiry module, for receiving looking into for user's transmission
Instruction is ask, and corresponding message data is searched according to query statement, query statement includes date inquiries instruction and/or ID inquiries refer to
Order.
Specifically, because record the message data of all monitored object in the memory of logger, and CPU is being received
The time of these message datas can will be recorded during these message datas, can when user wants to obtain a certain specific message data
Screened with passage time and/or monitored object ID.
As a kind of preferred embodiment, performing module is additionally included in line and writes with a brush dipped in Chinese ink module, for receiving user's write-in
When new ID addresses or object monitor database, correspondingly new ID addresses or object monitor database are write with a brush dipped in Chinese ink into record
In device.
When user monitors to the part in monitored object database entirety or monitored object database according to actual needs
, can be by writing with a brush dipped in Chinese ink the new ID addresses of module write-in or object monitor database online when object ID is updated, these are new
ID addresses or object monitor database can be sent by communication module to CPU, CPU can be supervised to new ID addresses or object
Control database is updated.
In addition, the vehicle CAN Communication diagnostic logger in the vehicle CAN Communication diagnostic record system provided for the present invention
Introduction refer to above-described embodiment, the present invention will not be repeated here.
The vehicle CAN Communication diagnostic record system that the present invention is provided except including above-mentioned vehicle CAN Communication diagnostic logger,
Also include host computer, facilitate user to be managed by host computer to obtained message data.
It should be noted that in this manual, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of vehicle CAN Communication diagnostic logger, it is characterised in that received and dispatched including onboard diagnostic system OBD connectors, CAN
Device, CPU, memory and communication module, wherein：
The OBD interfaces connection of the OBD connectors and vehicle；
The CAN transceiver is connected with the OBD connectors and the CPU respectively, for receiving what the vehicle was sent in real time
Message, and the message is converted into TTL signal sent to the CPU；
The CPU is connected with the memory and the communication module respectively, for receiving the TTL signal, and by the TTL
Signal is converted to message data and preserved to the memory, is additionally operable to read the message data from the memory and incites somebody to action
The message data is sent by the communication module, so that user is according to the message data analyzing failure cause.
2. vehicle CAN Communication diagnostic logger as claimed in claim 1, it is characterised in that the CPU is additionally operable to preserve monitoring
Object database, the monitored object database includes monitored object ID, and the process of the reception TTL signal is specially：
Receive TTL signal corresponding with the monitored object ID.
3. vehicle CAN Communication diagnostic logger as claimed in claim 2, it is characterised in that the CPU is additionally operable to receive upper
The new ID addresses that machine is sent, and the new ID addresses are write in the monitored object database；
Or, the new monitored object database that host computer is sent is received, and the new monitored object database is replaced
Original monitored object database.
4. vehicle CAN Communication diagnostic logger as claimed in claim 1, it is characterised in that the communication module is USB interface
Or WiFi module.
5. the vehicle CAN Communication diagnostic logger as described in claim any one of 1-4, it is characterised in that the CPU is additionally operable to
Enter resting state when the sleep frame of the vehicle transmission is connected within the time of continuous preset duration.
6. vehicle CAN Communication diagnostic logger as claimed in claim 5, it is characterised in that the CPU is additionally operable to receiving
Enter monitor state during the wake-up association that the vehicle is sent.
7. a kind of vehicle CAN Communication diagnostic record system, it is characterised in that including the car as described in claim any one of 1-6
CAN communication idagnostic logout device, also including the host computer on computer and the computer, the host computer includes performing module, uses
The message data that the computer is obtained from the logger is managed according to user instruction.
8. vehicle CAN Communication diagnostic record system as claimed in claim 7, it is characterised in that the performing module includes：
Log-in module, for just being carried when receiving the account of user's transmission and password and the account and correct password for user
For host computer administration authority.
9. vehicle CAN Communication diagnostic record system as claimed in claim 8, it is characterised in that the performing module also includes
Data inquiry module, the query statement for receiving user's transmission, and corresponding message data is searched according to the query statement,
The query statement includes date inquiries and instructed and/or ID query statements.
10. the vehicle CAN Communication diagnostic record system as described in claim any one of 7-9, it is characterised in that the execution mould
Block is additionally included in line and writes with a brush dipped in Chinese ink module, during for the new ID addresses write in reception user or object monitor database, accordingly
Ground is write with a brush dipped in Chinese ink into the logger by the new ID addresses or object monitor database.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710380283.0A CN106950948A (en) | 2017-05-25 | 2017-05-25 | A kind of vehicle CAN Communication diagnostic logger and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710380283.0A CN106950948A (en) | 2017-05-25 | 2017-05-25 | A kind of vehicle CAN Communication diagnostic logger and system |
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| CN106950948A true CN106950948A (en) | 2017-07-14 |
Family
ID=59480112
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| CN201710380283.0A Pending CN106950948A (en) | 2017-05-25 | 2017-05-25 | A kind of vehicle CAN Communication diagnostic logger and system |
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| CN111383361A (en) * | 2018-12-27 | 2020-07-07 | 朗德软件技术(北京)有限公司 | Vehicle condition information acquisition system for vehicle NVH evaluation and test |
| CN113946149A (en) * | 2021-09-30 | 2022-01-18 | 上汽通用五菱汽车股份有限公司 | Automobile CAN acquisition method and system |
| CN114913621A (en) * | 2022-06-30 | 2022-08-16 | 奇瑞汽车股份有限公司 | Real vehicle network signal acquisition system |
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Application publication date: 20170714 |