CN105929270A - Fault injection method and device - Google Patents
Fault injection method and device Download PDFInfo
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- CN105929270A CN105929270A CN201610248182.3A CN201610248182A CN105929270A CN 105929270 A CN105929270 A CN 105929270A CN 201610248182 A CN201610248182 A CN 201610248182A CN 105929270 A CN105929270 A CN 105929270A
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- frame
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
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- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a fault injection method and device. A CAN frame is received; according to a preset fault matching strategy, the method decides whether to perform fault injection on the CAN frame; and if yes, fault injection is carried out on the CAN frame according to a fault injection sequence contained by a preset fault injection strategy. The fault injection sequence includes at least two fault items. The method and the device can inject a plurality of fault items simultaneously, so that more flexible and comprehensive fault simulation can be conducted.
Description
Technical field
The present invention relates to emulation and technical field of measurement and test, in particular, relate to a kind of direct fault location side
Method and device.
Background technology
Often need in order to the reliability of modern Integrated Electronic System or its internal unit is sufficiently detected
Failure Injection Technique to be used simulates various abnormal situation, as simulate communication line physical layer,
The faults such as electrical layer, link layer, protocol layer, detect the equipment under test process for abnormal conditions with this
Ability.
At present, frequently with Failure Injection Technique be CAN (controller local area network, Controller Area
Network) bus failure injects.CAN Failure Injection Technique can be applicable to high stable, high reliability
The debugging of CAN equipment, test and proof procedure, run by simulation CAN equipment
The exception being likely to occur in journey is to realize fault-tolerance test, fault simulation, fault location and the fault of equipment
Analyze.But, the commonly used single injection of existing CAN direct fault location and the side of discontinuous injection
Formula, the direct fault location of which is when simulating the exception that CAN equipment is likely to occur in running
Excessively retrain, it is impossible to more flexible and more fully carry out fault simulation.
Summary of the invention
In view of this, the invention provides a kind of fault filling method and device, to overcome in prior art
Due to the commonly used single injection of existing CAN direct fault location and the mode of discontinuous injection, the party
The direct fault location of formula simulate CAN equipment be likely to occur in running exception time the most about
Bundle, it is impossible to the more flexible and problem that more fully carries out fault simulation.
For achieving the above object, the present invention provides following technical scheme:
A kind of fault filling method, described method includes:
Receive controller local area network's CAN frame；
Determine whether described CAN frame is carried out direct fault location according to default Trouble Match strategy；
When according to preset Trouble Match strategy determine described CAN frame is carried out direct fault location time, according in advance
If direct fault location strategy in CAN frame described in the direct fault location sequence pair that comprises carry out direct fault location；Wherein,
Described direct fault location sequence comprises at least two fault item.
Preferably, the Trouble Match strategy that described basis is preset determines whether described CAN frame is carried out fault
Inject, including:
Determine the information to be matched of described CAN frame；
By the information to be matched of described CAN frame and mating included in described default Trouble Match strategy
Information is mated；
If the match is successful, it is determined that described CAN frame is carried out direct fault location.
Preferably, the described information to be matched determining described CAN frame, including:
Determine that any one or more in the frame type of described CAN frame, frame ID and data is as treating
Join information.
Preferably, each described fault item separate configurations has the execution moment, according to the direct fault location preset
After CAN frame described in the direct fault location sequence pair comprised in strategy carries out direct fault location, described method is also wrapped
Include:
Each described fault item is performed according to the described sequencing performing the moment.
A kind of fault injection device, described device includes:
Receive unit, be used for receiving controller local area network's CAN frame；
Judging unit, for determining whether to carry out described CAN frame event according to the Trouble Match strategy preset
Barrier injects；
Direct fault location unit, for carrying out described CAN frame when the default Trouble Match strategy of basis determines
During direct fault location, according to CAN frame described in the direct fault location sequence pair comprised in default direct fault location strategy
Carry out direct fault location；Wherein, described direct fault location sequence comprises at least two fault item.
Preferably, described judging unit specifically includes:
Determine subelement, for determining the information to be matched of described CAN frame；
Coupling subelement, for by the information to be matched of described CAN frame and described default Trouble Match plan
Match information included in Lve is mated；
Direct fault location subelement, if for the match is successful, it is determined that described CAN frame is carried out fault note
Enter.
Preferably, described determine subelement specifically for:
Determine that any one or more in the frame type of described CAN frame, frame ID and data is as treating
Join information.
Preferably, each described fault item separate configurations has execution moment, described device also to include:
Performance element, for according to the direct fault location sequence pair institute comprised in the direct fault location strategy preset
State after CAN frame carries out direct fault location, according to the described sequencing performing the moment perform each described therefore
Barrier item.
Understand via above-mentioned technical scheme, compared with prior art, the invention discloses a kind of fault note
Enter method and device, receive CAN frame；Determine whether described CAN according to default Trouble Match strategy
Frame carries out direct fault location；When determining according to the Trouble Match strategy preset, described CAN frame is carried out fault note
Fashionable, carry out event according to CAN frame described in the direct fault location sequence pair comprised in default direct fault location strategy
Barrier injects；Wherein, described direct fault location sequence comprises at least two fault item.Said method and device,
Can be injected simultaneously into multiple fault item, thus more flexible and comprehensively carry out fault simulation.
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 will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only embodiments of the invention, for those of ordinary skill in the art, not
On the premise of paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
The structural representation of the fault injection system that Fig. 1 provides for the embodiment of the present invention；
The flow chart of a kind of fault filling method that Fig. 2 provides for the embodiment of the present invention；
The schematic diagram of a kind of direct fault location sequence that Fig. 3 provides for the embodiment of the present invention；
The structure chart of a kind of fault injection device that Fig. 4 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
The structural representation of the fault injection system that Fig. 1 provides for the embodiment of the present invention, the embodiment of the present invention
The fault filling method provided can be implemented by this fault injection system.Reference Fig. 1, each CAN passage,
The signal inputted by CAN transceiver has RX Yu TX two, owing to Fault Insertion Equipment is to be concatenated into
In CAN network, therefore Fault Insertion Equipment has two CAN interface, and each CAN interface all has one group
RX and TX, such as RX0 Yu TX0 in Fig. 1, RX1 and TX1.
See Fig. 1, as a example by output module, after receiving the signal in CAN network, pass through
CAN_IGR0 module achieves baud rate, transformation from serial to parallel operation, delivers to CAN_Match0 module and enters
Row failure strategy coupling and direct fault location sequence are arranged, and are sent to by signal according to match condition
CAN_Fault0 module carries out direct fault location, and the signal after injection delivers to CAN_EGR0 module, real
Baud rate, parallel-serial conversion operation are showed.The configuration management of whole system is real by PMC_Interface module
Existing.
Below, the fault filling method provided the embodiment of the present invention is introduced.
Fig. 2 shows the flow chart of the fault filling method that the embodiment of the present invention provides, with reference to Fig. 2, the party
Method may include that
S101, receives controller local area network's CAN frame.
It should be noted that CAN frame herein refers specifically to realize baud rate, transformation from serial to parallel operation
After CAN network on signal.
S102, determines whether described CAN frame is carried out direct fault location according to default Trouble Match strategy,
When according to preset Trouble Match strategy determine described CAN frame is carried out direct fault location time, perform S103,
When according to preset Trouble Match strategy determine described CAN frame is not carried out direct fault location time, perform
S104。
The Trouble Match strategy preset is set with the message needing to carry out direct fault location.In the present embodiment,
After receiving CAN frame, can be by judging whether described CAN frame is default Trouble Match strategy
In the message needing to carry out direct fault location that sets, determine whether described CAN frame is carried out fault
Inject, concrete, it may be determined that the information to be matched of described CAN frame；To be matched by described CAN frame
Information is mated with the match information included in described default Trouble Match strategy；If mated into
Merit, it is determined that described CAN frame is carried out direct fault location.
Based on the form of CAN protocol, the present embodiment may determine that described CAN frame frame type,
Any one or more in frame ID and data is as information to be matched.Accordingly, described default fault
Match information included in matching strategy also comprise in frame type, frame ID and data any one or many
Kind.
It should be noted that can be logical on the basis of the form of CAN protocol in the Trouble Match strategy preset
Cross mask and represent whether match information comprises frame type, frame ID or data.Wherein mask is that 1 expression is chosen
Respective items, mask is to represent when 0 not choose respective items.
The frame type of CAN frame comprises following four kinds:
Normal data frame: RTR=0, IDE=0 (IDE=0, standard frame；RTR=0, Frame)
Standard remote frame: RTR=1, IDE=0 (IDE=0, standard frame；RTR=1, remote frame)
Growth data frame: (IDE=1 extends frame for RTR=0, IDE=1；RTR=0, Frame)
Extension remote frame: (IDE=1 extends frame for RTR=1, IDE=1；RTR=1, remote frame)
The frame type in the match information comprised in default Trouble Match strategy can be represented by 2 masks.
The frame ID of CAN frame is divided into standard frame ID and extension frame ID, and standard frame ID takies 11bit, extension
Frame ID takies 29bit.The corresponding mask of each bit of frame ID, represents default event by mask
Frame ID in the match information comprised in barrier matching strategy, and mate the scope of this frame ID.
The Data Matching of CAN frame is carried out in units of byte, most 8 bytes, each byte correspondence one
Individual mask.
S103, enters according to CAN frame described in the direct fault location sequence pair comprised in default direct fault location strategy
Row direct fault location；Wherein, described direct fault location sequence comprises at least two fault item.
Fig. 3 is the schematic diagram of a kind of direct fault location sequence that the embodiment of the present invention is given, this direct fault location sequence
Arrange for a CAN passage of an equipment, including N number of fault item (shown in figure for action 1,
Action 2 ... action N).It should be noted that the number of action by user according to concrete application scenarios
Determine, N >=1, there is no the upper limit.Fault item parameter configuration under different actions is independent, each fault item
Parameter needs independent configuration to perform the moment, and the configuration of each fault item can not conflict, it is necessary to be can be same
The fault type of Shi Zhihang.
S104, terminates.
Need further exist for explanation, according to the direct fault location sequence comprised in the direct fault location strategy preset
After row carry out direct fault location to described CAN frame, it is also possible to hold according to the described sequencing performing the moment
The each described fault item of row.
Present embodiment discloses a kind of fault filling method, receive CAN frame；According to default Trouble Match
Strategy determines whether described CAN frame is carried out direct fault location；When determining according to the Trouble Match strategy preset
When described CAN frame is carried out direct fault location, according to the direct fault location comprised in default direct fault location strategy
Described in sequence pair, CAN frame carries out direct fault location；Wherein, described direct fault location sequence comprises at least two event
Barrier item.Said method, it is possible to be injected simultaneously into multiple fault item, thus more flexible and comprehensively carry out fault
Simulation.
Fig. 4 shows the structure chart of the fault injection device that the embodiment of the present invention provides, with reference to Fig. 4, this dress
Put and include:
Receive unit 11, be used for receiving controller local area network's CAN frame；
Judging unit 12, for determining whether to carry out described CAN frame according to the Trouble Match strategy preset
Direct fault location；
Direct fault location unit 13, for when determining to enter described CAN frame according to the Trouble Match strategy preset
During row direct fault location, according to CAN described in the direct fault location sequence pair comprised in default direct fault location strategy
Frame carries out direct fault location；Wherein, described direct fault location sequence comprises at least two fault item.
Described judging unit specifically includes:
Determine subelement, for determining the information to be matched of described CAN frame；
Coupling subelement, for by the information to be matched of described CAN frame and described default Trouble Match plan
Match information included in Lve is mated；
Direct fault location subelement, if for the match is successful, it is determined that described CAN frame is carried out fault note
Enter.
Described determine subelement specifically for:
Determine that any one or more in the frame type of described CAN frame, frame ID and data is as treating
Join information.
It should be noted that each described fault item separate configurations has execution moment, described device also to include:
Performance element, for according to the direct fault location sequence pair institute comprised in the direct fault location strategy preset
State after CAN frame carries out direct fault location, according to the described sequencing performing the moment perform each described therefore
Barrier item.
Needing further exist for explanation, the concrete function of above-mentioned unit and subelement realizes by side
Method embodiment describes in detail, and the present embodiment repeats no more, and specifically refers to the associated description of embodiment of the method.
In this specification, each embodiment uses the mode gone forward one by one to describe, and each embodiment stresses
Being the difference with other embodiments, between each embodiment, identical similar portion sees mutually.
For device disclosed in embodiment, owing to it corresponds to the method disclosed in Example, so describing
Fairly simple, relevant part sees method part and illustrates.
Professional further appreciates that, respectively shows in conjunction with what the embodiments described herein described
The unit of example and algorithm steps, it is possible to electronic hardware, computer software or the two be implemented in combination in,
In order to clearly demonstrate the interchangeability of hardware and software, the most general according to function
Describe composition and the step of each example.These functions perform with hardware or software mode actually,
Depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can be to each specific
Should be used for use different methods to realize described function, but this realization is it is not considered that beyond this
The scope of invention.
The method described in conjunction with the embodiments described herein or the step of algorithm can directly use hardware,
The software module that processor performs, or the combination of the two implements.Software module can be placed in and deposit at random
Reservoir (RAM), internal memory, read-only storage (ROM), electrically programmable ROM, electric erasable can
Well known in programming ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field
In any other form of storage medium.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
The present invention.Multiple amendment to these embodiments will be aobvious and easy for those skilled in the art
See, generic principles defined herein can without departing from the spirit or scope of the present invention,
Realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein,
And it is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (8)
1. a fault filling method, it is characterised in that described method includes:
Receive controller local area network's CAN frame；
Determine whether described CAN frame is carried out direct fault location according to default Trouble Match strategy；
When according to preset Trouble Match strategy determine described CAN frame is carried out direct fault location time, according in advance
If direct fault location strategy in CAN frame described in the direct fault location sequence pair that comprises carry out direct fault location；Wherein,
Described direct fault location sequence comprises at least two fault item.
Method the most according to claim 1, it is characterised in that the Trouble Match that described basis is preset
Strategy determines whether described CAN frame is carried out direct fault location, including:
Determine the information to be matched of described CAN frame；
By the information to be matched of described CAN frame and mating included in described default Trouble Match strategy
Information is mated；
If the match is successful, it is determined that described CAN frame is carried out direct fault location.
Method the most according to claim 2, it is characterised in that described determine described CAN frame
Information to be matched, including:
Determine that any one or more in the frame type of described CAN frame, frame ID and data is as treating
Join information.
Method the most according to claim 1, it is characterised in that each described fault item separate configurations
There is the execution moment, according to CAN described in the direct fault location sequence pair comprised in the direct fault location strategy preset
After frame carries out direct fault location, described method also includes:
Each described fault item is performed according to the described sequencing performing the moment.
5. a fault injection device, it is characterised in that described device includes:
Receive unit, be used for receiving controller local area network's CAN frame；
Judging unit, for determining whether to carry out described CAN frame event according to the Trouble Match strategy preset
Barrier injects；
Direct fault location unit, for carrying out described CAN frame when the default Trouble Match strategy of basis determines
During direct fault location, according to CAN frame described in the direct fault location sequence pair comprised in default direct fault location strategy
Carry out direct fault location；Wherein, described direct fault location sequence comprises at least two fault item.
Device the most according to claim 5, it is characterised in that described judging unit specifically includes:
Determine subelement, for determining the information to be matched of described CAN frame；
Coupling subelement, for by the information to be matched of described CAN frame and described default Trouble Match plan
Match information included in Lve is mated；
Direct fault location subelement, if for the match is successful, it is determined that described CAN frame is carried out fault note
Enter.
Device the most according to claim 6, it is characterised in that described determine subelement specifically for:
Determine that any one or more in the frame type of described CAN frame, frame ID and data is as treating
Join information.
Device the most according to claim 5, it is characterised in that each described fault item separate configurations
Execution moment, described device is had also to include:
Performance element, for according to the direct fault location sequence pair institute comprised in the direct fault location strategy preset
State after CAN frame carries out direct fault location, according to the described sequencing performing the moment perform each described therefore
Barrier item.
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| CN201610248182.3A CN105929270A (en) | 2016-04-20 | 2016-04-20 | Fault injection method and device |
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|---|---|---|---|
| CN201610248182.3A CN105929270A (en) | 2016-04-20 | 2016-04-20 | Fault injection method and device |
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Cited By (6)
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| CN106484575A (en) * | 2016-09-29 | 2017-03-08 | 北京润科通用技术有限公司 | A kind of ARINC429 bus failure injected system |
| CN106556769A (en) * | 2016-11-22 | 2017-04-05 | 北京润科通用技术有限公司 | Direct fault location circuit, method and device |
| CN108462616A (en) * | 2018-03-29 | 2018-08-28 | 北京润科通用技术有限公司 | A kind of fault injection device and fault filling method |
| CN108459184A (en) * | 2018-03-23 | 2018-08-28 | 北京润科通用技术有限公司 | A kind of current failure method for implanting and system |
| CN108494599A (en) * | 2018-03-29 | 2018-09-04 | 北京润科通用技术有限公司 | A kind of ARINC664 bus failures injected system and method |
| CN110049312A (en) * | 2019-04-12 | 2019-07-23 | 北京旋极信息技术股份有限公司 | A kind of ARINC818 protocol malfunctions method for implanting and device |
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| CN110049312A (en) * | 2019-04-12 | 2019-07-23 | 北京旋极信息技术股份有限公司 | A kind of ARINC818 protocol malfunctions method for implanting and device |
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Application publication date: 20160907 |