CN106023337A - Controller SD card information reading method and device based on CAN bus communication - Google Patents
Controller SD card information reading method and device based on CAN bus communication Download PDFInfo
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- CN106023337A CN106023337A CN201610390639.4A CN201610390639A CN106023337A CN 106023337 A CN106023337 A CN 106023337A CN 201610390639 A CN201610390639 A CN 201610390639A CN 106023337 A CN106023337 A CN 106023337A
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- Prior art keywords
- card
- controller
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- card information
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Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0629—Configuration or reconfiguration of storage systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
- G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/085—Registering performance data using electronic data carriers
-
- 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]
- H04L12/40—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
- 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
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Communication Control (AREA)
Abstract
The invention provides a controller SD card information reading method and device based on CAN bus communication. The method comprises the steps: receiving an SD card information reading instruction; resolving the SD card information reading instruction; according to the SD card information reading instruction, obtaining data in an SD card; and sending the obtained SD card data to an information receiving device, wherein the controller supports a CAN bus communication way. According to the embodiment of the invention, the SD card information reading instruction is received and resolved, the data in the SD card is obtained according to the SD card information reading instruction, and the obtained SD card data is sent to the information receiving device; in the process of obtaining the controller SD card data, disassembly is not needed, the defects of SD card inconvenient disassembly brought by packaging and installation positions of a conventional controller are avoided, an auto part self CAN network is used, and the data of the controller SD card is convenient and safe to read.
Description
Technical field
The present invention relates to auto parts and components development technique field, be specifically related to a kind of total based on CAN
The controller SD card information read method of line communication and device.
Background technology
Along with the development technique development of auto parts and components, for auto parts and components test also
The strictest, for controller (Electronic Control Unit, ECU) itself or even
The real-time running data of the whole system with controller as core and the analysis of the system failure just seem
Particularly important.
Safe digital card (Secure Digital Memory Card, SD) is a kind of based on partly leading
The memory device of new generation of body fast-flash memory device, size is just as the SD memory card of a stamp, weight
Amount only 2 grams, but have high memory capacity, rapid data transmission rate, move flexibly greatly
Property and well safety；There is the various features such as Large Copacity, high-performance, safety many
Function storage card.
Owing to controller uses the resource problem of chip, it is not enough to support huge data storage.
Prior art adds SD card in the controller, utilizes the Large Copacity data to controller of SD card
Store.But, due to the problem of controller encapsulation itself with installation site, for SD card
Dismounting cause inconvenience, especially for need regular analytical data controller；Control
The dismounting of device needs the consuming time with artificial, and it is right that the regular dismounting of controller simultaneously easily causes
Controller and the damage of vehicle.For the controller that waterproof requirement is high, carry out waterproof sealing process
Rear dismounting SD card, hardly reality.
Summary of the invention
The technical problem to be solved is: the encapsulation of existing controller and installation site
The problem that the SD card brought is inconvenient to dismantle.
For solving above-mentioned technical problem, the present invention proposes a kind of control based on CAN communication
Device SD card information read method processed, should controller SD card information based on CAN communication
Read method includes:
Receive SD card information and read instruction；
Resolve described SD card information and read instruction；
Read instruction according to described SD card information and obtain the data in SD card；
The data of the SD card got are sent to information receiver；
Wherein, CAN communication mode supported by described controller.
Alternatively, the method also includes:
Read instruction according to described SD card information and CAN network baud rate is set.
Alternatively, described reading according to described SD card information instructs the packet obtained in SD card
Include:
Read instruction branch according to described SD card information and obtain the data in SD card, the SD that will obtain
Data in card store to parameter group.
Alternatively, the described data by the SD card got send to information receiver and include:
Data in described parameter group are sent to information receiver.
Alternatively: with described information receiver, described controller supports that SAE-J1939-21 communicates
Agreement.
The invention allows for a kind of controller SD card information based on CAN communication to read
Device, this device includes:
Information reads instruction reception unit, is used for receiving SD card information and reads instruction；
Information reads instruction resolution unit, is used for resolving described SD card information and reads instruction；
Data capture unit, obtains the number in SD card for reading instruction according to described SD card information
According to；
Data transmission unit, the data of the SD card for getting send to information receiver；
Wherein, CAN communication mode supported by described controller.
Alternatively, this device also includes:
Network Configuration of baud rate unit, arranges CAN for reading instruction according to described SD card information
Network baud rate.
Alternatively, described data capture unit is further used for:
Read instruction branch according to described SD card information and obtain the data in SD card, the SD that will obtain
Data in card store to parameter group.
Alternatively, described data transmission unit is further used for:
Data in described parameter group are sent to information receiver.
Alternatively, with described information receiver, described controller supports that SAE-J1939-21 communicates
Agreement.
The present invention provide controller SD card information read method based on CAN communication and
Device, receives and parses through SD card information and reads instruction, reads instruction according to SD card information and obtains SD
Data in card, and the data of the SD card got are sent to information receiver, obtaining
Without dismounting during controller SD card data, it is to avoid the encapsulation of existing controller and peace
The SD card that holding position brings is inconvenient to the defect dismantled, and utilizes auto parts and components self CAN net
Network, the data of convenient, safe Read Controller SD card.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below
The accompanying drawing used required in embodiment or description of the prior art will be briefly described, aobvious and
Easily insight, the accompanying drawing in describing below is some embodiments of the present invention, common for this area
From the point of view of technical staff, on the premise of not paying creative work, it is also possible to according to these accompanying drawings
Obtain other accompanying drawing.
Fig. 1 is controller SD card based on the CAN communication letter of one embodiment of the invention
The schematic flow sheet of message reading method；
Fig. 2 is controller SD card based on the CAN communication letter of one embodiment of the invention
The structural representation of breath reading device；
Fig. 3 is controller SD card based on the CAN communication letter of one embodiment of the invention
The schematic diagram of breath reading device.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below will knot
Close the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear,
Complete description, it is clear that described embodiment be 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 are not having
Make the every other embodiment obtained under creative work premise, broadly fall into present invention protection
Scope.
Fig. 1 is controller SD card based on the CAN communication letter of one embodiment of the invention
The schematic flow sheet of message reading method.As it is shown in figure 1, this embodiment is logical based on CAN
The controller SD card information read method of news includes:
S11: receive SD card information and read instruction；
S12: resolve described SD card information and read instruction；
S13: read instruction according to described SD card information and obtain the data in SD card；
S14: the data of the SD card got are sent to information receiver；
Wherein, CAN communication mode supported by described controller.
It should be noted that described controller provides information receiver to lead to the mutual of controller
Road, including function passage and physical channel；Function passage realizes acquisition and the stopping of SD card data
The operations such as acquisition；Physical channel sends the data of SD card for controller to information receiver.
The present invention provide controller SD card information read method based on CAN communication and
Device, receives and parses through SD card information and reads instruction, reads instruction according to SD card information and obtains SD
Data in card, and the data of the SD card got are sent to information receiver, obtaining
Without dismounting during controller SD card data, it is to avoid the encapsulation of existing controller and peace
The SD card that holding position brings is inconvenient to the defect dismantled, and utilizes auto parts and components self CAN net
Network, the data of convenient, safe Read Controller SD card.
The embodiment of the present invention one preferred embodiment in, the method also includes:
Read instruction according to described SD card information and CAN network baud rate is set.
It should be noted that function passage resolves SD card information reads instruction, this instruction includes
The information of change network baud rate, function passage and CAN drive layer mutual, at the beginning of CAN driving layer
Reset CAN network baud rate, the speed of SD card data transmission can be controlled according to actual needs.
Further, step S13 in Fig. 1 specifically includes:
Read instruction branch according to described SD card information and obtain the data in SD card, the SD that will obtain
Data in card store to parameter group.
Correspondingly, the described data by the SD card got send to information receiver and include:
Data in described parameter group are sent to information receiver.
In actual applications, controller and information receiver support SAE-J1939-21 communication protocols
View.With the separator that enters a new line, obtain the data in SD card, storage to SAE-J1939-21 communication protocols
In the parameter group of view.Carry out digital independent with line feed separator and be packed with follow-up SD card information
Resolve, save the system resource of controller simultaneously, preferably meet SAE-J1939-21 communication protocols
View.
It should be noted that information receiver can be host computer based on CAN communication, can
Directly resolve reduction SD card data.
Fig. 2 is the controller SD card information based on CAN communication of one embodiment of the invention
The structural representation of reading device.As in figure 2 it is shown, the device of the embodiment of the present invention includes: information
Read instruction reception unit 21, information reads instruction resolution unit 22, data capture unit 23 and
Data transmission unit 24；Specifically:
Information reads instruction reception unit 21, is used for receiving SD card information and reads instruction；
Information reads instruction resolution unit 22, is used for resolving described SD card information and reads instruction；
Data capture unit 23, obtains in SD card for reading instruction according to described SD card information
Data；
Data transmission unit 24, the data of the SD card for getting send to information to receive and fill
Put；
Wherein, CAN communication mode supported by described controller.
In a preferred embodiment, this device also includes:
Network Configuration of baud rate unit, arranges CAN for reading instruction according to described SD card information
Network baud rate.
Further, data capture unit 23 is further used for:
Read instruction branch according to described SD card information and obtain the data in SD card, the SD that will obtain
Data in card store to parameter group.
Data transmission unit 24 is further used for:
Data in described parameter group are sent to information receiver.
In actual applications, controller and described information receiver support that SAE-J1939-21 leads to
Letter agreement.
Fig. 3 is controller SD card based on the CAN communication letter of one embodiment of the invention
The schematic diagram of breath reading device.As it is shown on figure 3,
Information receiver drives layer to send SD card information by CAN and reads instruction, function passage
Resolving this order, instructing as change baud rate is 500KHz, reads SD card information.First function is led to
Road and CAN drive layer mutual, and CAN drives layer to arrange CAN network baud rate, for example,
500KHz；
SD card, with the separator that enters a new line, reads data in SD card, and storage to SAE-J1939-21 communicates
In the parameter group of agreement；
Physical channel carries out CAN network by SAE-J1939-21 communication protocol and information receiver
Communication, transmits SD card information, and period SD card does not carry out SD card digital independent, it is ensured that in parameter group
Information integrity；
Physical channel receives after this information that information receiver sends is properly received, to SD
Card sends the request reading SD card next line information again, and SD card responds the request of physical channel,
Again read off SD card information, fill the CAN parameter group of physical channel；
After SD card digital independent being detected, send SD card digital independent to function passage complete
Bi Tongzhi；
Function passage sends the SD complete notice of card digital independent to information receiver, exits SD card
Receive capabilities.
After SD card information is obtained by CAN communication mode, information receiver can be according to from figure
Part utilizes the tool design shell script also originals such as MATLAB.
The controller SD card information reading device based on CAN communication of the present embodiment is permissible
For performing said method embodiment, its principle is similar with technique effect, and here is omitted.
The present invention provide controller SD card information read method based on CAN communication and
Device, receives and parses through SD card information and reads instruction, reads instruction according to SD card information and obtains SD
Data in card, and the data of the SD card got are sent to information receiver, obtaining
Without dismounting during controller SD card data, it is to avoid the encapsulation of existing controller and peace
The SD card that holding position brings is inconvenient to the defect dismantled, and utilizes auto parts and components self CAN net
Network, the data of convenient, safe Read Controller SD card.
It should be noted that term " includes ", " comprising " or its any other variant are intended to non-
Comprising of exclusiveness, so that include the process of a series of key element, method, article or set
For not only including those key elements, but also include other key elements being not expressly set out, or
Also include the key element intrinsic for this process, method, article or equipment.The most more
In the case of restriction, statement " including ... " key element limited, it is not excluded that including
The process of described key element, method, article or equipment there is also other identical element.
In the description of the present invention, illustrate a large amount of detail.Although it is understood that,
Embodiments of the invention can be put into practice in the case of not having these details.At some examples
In, it is not shown specifically known method, structure and technology, in order to not fuzzy to this specification
Understanding.Similarly, it will be appreciated that disclose to simplify the present invention and help to understand each
One or more in bright aspect, above in the description of the exemplary embodiment of the present invention,
Each feature of the present invention is sometimes grouped together into single embodiment, figure or retouches it
In stating.But, the method for the disclosure should not explained in reflecting an intention that i.e. required
The application claims of protection is more special than the feature being expressly recited in each claim
Levy.More precisely, as the following claims reflect, inventive aspect is less than front
All features of single embodiment disclosed in face.Therefore, it then follows the right of detailed description of the invention is wanted
Book is asked thus to be expressly incorporated in this detailed description of the invention, the conduct of the most each claim itself
The independent embodiment of the present invention.
Above example is merely to illustrate technical scheme, is not intended to limit；Although
With reference to previous embodiment, the present invention is described in detail, those of ordinary skill in the art
It is understood that the technical scheme described in foregoing embodiments still can be modified by it,
Or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a controller SD card information read method based on CAN communication, its feature
It is, including:
Receive SD card information and read instruction；
Resolve described SD card information and read instruction；
Read instruction according to described SD card information and obtain the data in SD card；
The data of the SD card got are sent to information receiver；
Wherein, CAN communication mode supported by described controller.
Controller SD card information based on CAN communication the most according to claim 1 is read
Access method, it is characterised in that also include:
Read instruction according to described SD card information and CAN network baud rate is set.
Controller SD card information based on CAN communication the most according to claim 1 is read
Access method, it is characterised in that described reading according to described SD card information instructs in acquisition SD card
Data include:
Read instruction branch according to described SD card information and obtain the data in SD card, the SD that will obtain
Data in card store to parameter group.
Controller SD card information based on CAN communication the most according to claim 3 is read
Access method, it is characterised in that the described data transmission of the SD card got reception to information fills
Put and include:
Data in described parameter group are sent to information receiver.
Controller SD card information based on CAN communication the most according to claim 1 is read
Access method, it is characterised in that: described controller and described information receiver support
SAE-J1939-21 communication protocol.
6. a controller SD card information read method based on CAN communication, its feature
It is, including:
Information reads instruction reception unit, is used for receiving SD card information and reads instruction；
Information reads instruction resolution unit, is used for resolving described SD card information and reads instruction；
Data capture unit, obtains the number in SD card for reading instruction according to described SD card information
According to；
Data transmission unit, the data of the SD card for getting send to information receiver；
Wherein, CAN communication mode supported by described controller.
Controller SD card information based on CAN communication the most according to claim 6 is read
Fetching is put, it is characterised in that also include:
Network Configuration of baud rate unit, arranges CAN for reading instruction according to described SD card information
Network baud rate.
Controller SD card information based on CAN communication the most according to claim 6 is read
Fetching is put, it is characterised in that described data capture unit is further used for:
Read instruction branch according to described SD card information and obtain the data in SD card, the SD that will obtain
Data in card store to parameter group.
Controller SD card information based on CAN communication the most according to claim 8 is read
Fetching is put, it is characterised in that described data transmission unit is further used for:
Data in described parameter group are sent to information receiver.
Controller SD card information based on CAN communication the most according to claim 6
Reading device, it is characterised in that described controller and described information receiver support
SAE-J1939-21 communication protocol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390639.4A CN106023337A (en) | 2016-06-02 | 2016-06-02 | Controller SD card information reading method and device based on CAN bus communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390639.4A CN106023337A (en) | 2016-06-02 | 2016-06-02 | Controller SD card information reading method and device based on CAN bus communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106023337A true CN106023337A (en) | 2016-10-12 |
Family
ID=57089502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610390639.4A Pending CN106023337A (en) | 2016-06-02 | 2016-06-02 | Controller SD card information reading method and device based on CAN bus communication |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100162090A1 (en) * | 2001-10-20 | 2010-06-24 | Christoph Emde | Method of detecting data transmission errors in a CAN controller, and a CAN controller for carrying out the method |
| CN202159243U (en) * | 2011-03-30 | 2012-03-07 | 北京建筑工程学院 | Monitoring module of engineering machinery monitoring system |
| CN203165045U (en) * | 2013-03-04 | 2013-08-28 | 朱银娟 | Vehicle information collecting device based on CAN (controller area network) communication |
| CN103941625A (en) * | 2014-05-08 | 2014-07-23 | 哈尔滨工业大学 | Can bus data transmission monitoring system |
-
2016
- 2016-06-02 CN CN201610390639.4A patent/CN106023337A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100162090A1 (en) * | 2001-10-20 | 2010-06-24 | Christoph Emde | Method of detecting data transmission errors in a CAN controller, and a CAN controller for carrying out the method |
| CN202159243U (en) * | 2011-03-30 | 2012-03-07 | 北京建筑工程学院 | Monitoring module of engineering machinery monitoring system |
| CN203165045U (en) * | 2013-03-04 | 2013-08-28 | 朱银娟 | Vehicle information collecting device based on CAN (controller area network) communication |
| CN103941625A (en) * | 2014-05-08 | 2014-07-23 | 哈尔滨工业大学 | Can bus data transmission monitoring system |
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Application publication date: 20161012 |
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