CN105553771A - Message detection method and apparatus - Google Patents
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- CN105553771A CN105553771A CN201510945963.3A CN201510945963A CN105553771A CN 105553771 A CN105553771 A CN 105553771A CN 201510945963 A CN201510945963 A CN 201510945963A CN 105553771 A CN105553771 A CN 105553771A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/18—Protocol analysers
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Abstract
The invention discloses a message detection method and apparatus. The method comprises: acquiring a charging message of interaction between a charging pile and an electric vehicle charged by using the charging pile; acquiring a preset communication protocol standard; and detecting whether the charging message meets content requirements of the preset communication protocol standard. The message detection method and apparatus solve the technical problems of low analysis efficiency and easiness for generating faults, which are caused by a complex manual message analysis process in the related arts.
Description
Technical field
The present invention relates to new-energy automobile field, in particular to a kind of message detecting method and device.
Background technology
Charging infrastructure is that new-energy automobile is promoted and the important foundation of development and support.Under the background that charging pile and electric automobile market open gradually, electric automobile brand and increasing sharply of quantity will propose higher requirement to the charging reliability of electrically-charging equipment service and compatibility.
Electric automobile direct current quick charge interface and CAN communication stipulations thereof design with reference to national standard " GB/T20234.3-2011 electric car conduction chargeable connection device the 3rd part: direct-current charging interface " and " communication protocol between the non-vehicle-mounted conduction-type charger of GB/T27930-2011 electric automobile and battery management system ", and wherein CAN communication stipulations have carried out specification in GB.Because the partial content definition of 2011 editions GBs to CAN communication stipulations is distinct not, lack detailed Control timing sequence figure, different manufacturers is caused all to there are differences on the understanding of CAN communication stipulations implication and Control timing sequence and algorithm realization, cause the unmatched situation of interactive information often occurring charging pile and on-vehicle battery controller BMS in the real process of knee charging, cause and charge unsuccessfully.
Research shows, communication protocol is not inconsistent and causes charging unsuccessfully or abnormal main reason.For the problem that communication failure causes charging incompatible, common car owner and the on-the-spot operation maintenance personnel of charging station are difficult to get rid of by experience, can only carry out analyze and solve by professional by the communication message gathered in CAN.Conventional method is by CAN analyzer collection communication stipulations one by one, is defined and carries out address to collected message and content information is examined, judge sequential relationship simultaneously according to message delivery time by the byte of professional's reference standard stipulations.The resolving of this traditional scheme is numerous and diverse, and analyzing efficiency is low, and easily makes mistakes, simultaneously higher to the competency profiling of professional, is not easy to field failure investigation.
For above-mentioned problem, at present effective solution is not yet proposed.
Summary of the invention
Embodiments provide a kind of message detecting method and device, at least to solve the low and technical problem of easily makeing mistakes of the analyzing efficiency caused because the process of artificial packet parsing is numerous and diverse in correlation technique.
According to an aspect of the embodiment of the present invention, provide a kind of message detecting method, comprising: obtain the charging message that charging pile is mutual with the electric automobile using above-mentioned charging pile to charge; Obtain the communication protocol standard preset; Detect the content requirement whether above-mentioned charging message meets the above-mentioned communication protocol standard preset.
Further, after obtaining the charging pile charging message mutual with the electric automobile using above-mentioned charging pile to charge, said method also comprises: resolve above-mentioned charging message, obtain address information and the content information thereof of above-mentioned charging message, wherein, after the address information obtaining above-mentioned charging message, the communication protocol corresponding with the address information of above-mentioned charging message is searched from the above-mentioned communication protocol standard preset, and whether the content information detecting above-mentioned charging message meets the content requirement of the communication protocol corresponding with the address information of above-mentioned charging message.
Further, the content detecting the whether satisfied communication protocol corresponding with the address information of above-mentioned charging message of content information of above-mentioned charging message requires to include: contrasted by the content information of the content information of above-mentioned charging message with above-mentioned corresponding communication protocol, whether the content detecting above-mentioned charging message lacks; When the content that testing result is above-mentioned charging message does not lack, whether the content detecting above-mentioned charging message is correct; When testing result be the content of above-mentioned charging message correct, whether the transmission cycle detecting above-mentioned charging message correct.
Further, after obtaining the charging pile charging message mutual with the electric automobile using above-mentioned charging pile to charge, said method also comprises: resolve above-mentioned charging message, obtains the delivery time of above-mentioned charging message; The sequential logic of the above-mentioned electric automobile using above-mentioned charging pile to charge is determined according to the delivery time of above-mentioned charging message; Detect the timing requirements whether above-mentioned sequential logic meets the above-mentioned communication protocol standard preset.
Further, after the content detecting above-mentioned charging message and whether meet the above-mentioned communication protocol standard preset requires, said method also comprises: show the testing result whether content that above-mentioned charging message meets the above-mentioned communication protocol standard preset requires.
According to the another aspect of the embodiment of the present invention, additionally provide a kind of packet check device, comprising: the first acquiring unit, for obtaining the charging pile charging message mutual with the electric automobile using above-mentioned charging pile to charge; Second acquisition unit, for obtaining the communication protocol standard preset; Whether the first detecting unit, meet the content requirement of the above-mentioned communication protocol standard preset for detecting above-mentioned charging message.
Further, said apparatus also comprises: resolution unit, for after obtaining the charging pile charging message mutual with the electric automobile using above-mentioned charging pile to charge, resolve above-mentioned charging message, obtain address information and the content information thereof of above-mentioned charging message, wherein, above-mentioned second acquisition unit is also for after the address information obtaining above-mentioned charging message, the communication protocol corresponding with the address information of above-mentioned charging message is searched from the above-mentioned communication protocol standard preset, whether the content information of above-mentioned first detecting unit also for detecting above-mentioned charging message meets the content requirement of the communication protocol corresponding with the address information of above-mentioned charging message.
Further, above-mentioned first detecting unit also comprises: contrast module, and for being contrasted by the content information of the content information of above-mentioned charging message with above-mentioned corresponding communication protocol, whether the content detecting above-mentioned charging message lacks; First detection module, in testing result be the content of above-mentioned charging message do not lack, whether the content detecting above-mentioned charging message correct; Second detection module, the content in testing result being above-mentioned charging message is correct, whether the transmission cycle detecting above-mentioned charging message is correct.
Further, said apparatus also comprises: resolution unit, for after obtaining the charging pile charging message mutual with the electric automobile using above-mentioned charging pile to charge, resolves above-mentioned charging message, obtains the delivery time of above-mentioned charging message; Determining unit, for determining the sequential logic of the above-mentioned electric automobile using above-mentioned charging pile to charge according to the delivery time of above-mentioned charging message; Whether the second detecting unit, meet the timing requirements of the above-mentioned communication protocol standard preset for detecting above-mentioned sequential logic.
Further, said apparatus also comprises: display unit, after requiring in the content detecting above-mentioned charging message and whether meet the above-mentioned communication protocol standard preset, show the testing result whether content that above-mentioned charging message meets the above-mentioned communication protocol standard preset requires.
In embodiments of the present invention, adopt automatic acquisition and detect the mode of the communication message of electric automobile, by obtaining the charging pile charging message mutual with the electric automobile using charging pile to charge; Obtain the communication protocol standard preset; Detect the content requirement whether charging message meets the communication protocol standard preset, reach automatic detection messages and close the object whether required, thus achieve the technique effect simplifying resolving, improve analyzing efficiency and accuracy, and then solve the low and technical problem of easily makeing mistakes of the analyzing efficiency caused because the process of artificial packet parsing is numerous and diverse in correlation technique.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of a kind of optional message detecting method according to the embodiment of the present invention;
Fig. 2 is the schematic diagram of a kind of optional packet check device according to the embodiment of the present invention.
Embodiment
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
It should be noted that, term " first ", " second " etc. in specification of the present invention and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as embodiments of the invention described herein can with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
Embodiment 1
According to the embodiment of the present invention, provide a kind of embodiment of the method for message detecting method, it should be noted that, can perform in the computer system of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing, and, although show logical order in flow charts, in some cases, can be different from the step shown or described by order execution herein.
Fig. 1 is the flow chart of a kind of optional message detecting method according to the embodiment of the present invention, and as shown in Figure 1, the method comprises the steps:
Step S102, obtains the charging message that charging pile is mutual with the electric automobile using charging pile to charge;
Step S104, obtains the communication protocol standard preset;
Step S106, detects the content requirement whether charging message meets the communication protocol standard preset.
During enforcement, the inspection software performing above-mentioned steps is installed on computers, use the collection of CAN analyzer to charge message from the CAN collection between charging pile and the electric automobile using charging pile to charge simultaneously, wherein, between computer with CAN analyzer, adopt standard USB interface to be connected.
Communication protocol standard presets, and it can be general GB communication protocol.Wherein, the content detecting the whether satisfied communication protocol standard preset of charging message requires to comprise the detection of many aspects.Such as, whether the content that can detect charging message meets the content of the communication protocol standard preset, and whether the transmission Control timing sequence detecting charging message meets the sequential etc. of the communication protocol standard preset.
Pass through above-described embodiment, reach automatic detection messages and close the object whether required, thus achieve the technique effect simplifying resolving, improve analyzing efficiency and accuracy, and then solve the low and technical problem of easily makeing mistakes of the analyzing efficiency caused because the process of artificial packet parsing is numerous and diverse in correlation technique.
Alternatively, after obtaining the charging pile charging message mutual with the electric automobile using charging pile to charge, said method also comprises:
S2, resolve charging message, obtain address information and the content information thereof of charging message, wherein, after the address information obtaining charging message, from the communication protocol standard preset, search the communication protocol corresponding with the address information of the message that charges, and whether the content information detecting charging message meets the content requirement of the communication protocol corresponding with the address information of charging message.
Because different charging messages has different address ID and different contents, and the specified standard message in the communication protocol standard preset also has respective address ID and corresponding content, therefore, after collecting charging pile and electronic charging message alternately, parse address ID and the content of this message, can be the communication protocol standard of this ID according to finding in the ID of this message to communication protocol standard with address, and then extract the content of this communication protocol standard, and whether the content comparing this communication protocol standard is consistent with the content of current charging message.
By the embodiment of the present invention, the address information according to each charging message can find the communication protocol standard matched fast, and then improves the detection efficiency of charging message.
Alternatively, the content detecting the whether satisfied communication protocol corresponding with the address information of charging message of content information of charging message requires to include:
S4, contrasts the content information of charging message with the content information of corresponding communication protocol, and whether the content detecting charging message lacks;
S6, when the content that testing result is charging message does not lack, whether the content detecting charging message is correct;
S8, when testing result be charging message content correct, detect charging message the transmission cycle whether correct.
Particularly, 3 tables of data can be created, be respectively: protocol name table, for information such as storage protocol title, agreement ID, agreement accepted standard, agreement producer and specified otherwise; Protocol contents table, for the PGN numbering, SPN numbering, option, essential option, data offset, data resolution, message cycle etc. of storage protocol content and associated agreement ID thereof, agreement; Protocal analysis table, for storing the indication information gone out from each charging packet parsing collected.During use, each index in the agreement in protocol contents table and protocal analysis table is contrasted, judges whether there is index deletion condition in protocal analysis table.If so, then show that current charging message is illegal, namely do not meet the content requirement of communication protocol standard, stop present procedure; If not, then need the content judging current charging message further whether correct, if not, then show that current charging message is illegal, stop present procedure, if so, then need to judge that whether the transmission cycle of current charging message is correct further; If the transmission cycle of current charging message is correct, then show that current charging message is legal, otherwise, show that current charging message is illegal, need terminator.
By the embodiment of the present invention, detect charging message successively and whether lack, content and the cycle of transmission whether correct etc., can clear layer ground, whether detect charging message all sidedly legal.
Alternatively, after obtaining the charging pile charging message mutual with the electric automobile using charging pile to charge, said method also comprises:
S10, resolves charging message, obtains the delivery time of charging message;
S12, determines the sequential logic of the electric automobile using charging pile to charge according to the delivery time of charging message;
S14, detects the timing requirements whether sequential logic meets the communication protocol standard preset.
Pass through the embodiment of the present invention, the sequential logic of the Vehicle Controller of electric automobile can be determined simply according to the delivery time of charging message, and then determine whether this control logic meets the timing requirements of communication protocol standard, when not meeting timing requirements, can advise that the manufacturer of electric automobile adjusts its time sequence control logic, make itself and charging pile compatible.
Alternatively, after the content detecting the whether satisfied communication protocol standard preset of charging message requires, said method also comprises:
S16, the testing result whether content that display charging message meets the communication protocol standard preset requires.
Particularly, corresponding testing result can be shown in the mode of form or curve, like this, common car owner or charging station staff can understand current electric automobile intuitively and whether charging pile is compatible, if incompatible, the reason etc. that charging is failed can be understood further.
Embodiment 2
According to the embodiment of the present invention, provide a kind of device embodiment of packet check device.
Fig. 2 is the schematic diagram of a kind of optional packet check device according to the embodiment of the present invention, and as shown in Figure 2, this device comprises: the first acquiring unit 202, for obtaining the charging pile charging message mutual with the electric automobile using charging pile to charge; Second acquisition unit 204, for obtaining the communication protocol standard preset; Whether the first detecting unit 206, meet the content requirement of the communication protocol standard preset for detecting charging message.
During enforcement, the inspection software performing above-mentioned steps is installed on computers, use the collection of CAN analyzer to charge message from the CAN collection between charging pile and the electric automobile using charging pile to charge simultaneously, wherein, between computer with CAN analyzer, adopt standard USB interface to be connected.
Communication protocol standard presets, and it can be general GB communication protocol.Wherein, the content detecting the whether satisfied communication protocol standard preset of charging message requires to comprise the detection of many aspects.Such as, whether the content that can detect charging message meets the content of the communication protocol standard preset, and whether the transmission Control timing sequence detecting charging message meets the sequential etc. of the communication protocol standard preset.
Pass through above-described embodiment, reach automatic detection messages and close the object whether required, thus achieve the technique effect simplifying resolving, improve analyzing efficiency and accuracy, and then solve the low and technical problem of easily makeing mistakes of the analyzing efficiency caused because the process of artificial packet parsing is numerous and diverse in correlation technique.
Alternatively, said apparatus also comprises: resolution unit, for after obtaining the charging pile charging message mutual with the electric automobile using charging pile to charge, resolve charging message, obtain address information and the content information thereof of charging message, wherein, second acquisition unit is also for after the address information obtaining charging message, the communication protocol corresponding with the address information of the message that charges is searched from the communication protocol standard preset, whether the content information of the first detecting unit also for detecting charging message meets the content requirement of the communication protocol corresponding with the address information of charging message.
Because different charging messages has different address ID and different contents, and the specified standard message in the communication protocol standard preset also has respective address ID and corresponding content, therefore, after collecting charging pile and electronic charging message alternately, parse address ID and the content of this message, can be the communication protocol standard of this ID according to finding in the ID of this message to communication protocol standard with address, and then extract the content of this communication protocol standard, and whether the content comparing this communication protocol standard is consistent with the content of current charging message.
By the embodiment of the present invention, the address information according to each charging message can find the communication protocol standard matched fast, and then improves the detection efficiency of charging message.
Alternatively, above-mentioned first detecting unit also comprises: contrast module, and for being contrasted with the content information of corresponding communication protocol by the content information of charging message, whether the content detecting charging message lacks; First detection module, in testing result be charging message content do not lack, detect charging message content whether correct; Second detection module, the content in testing result being charging message is correct, whether the transmission cycle detecting charging message is correct.
Particularly, 3 tables of data can be created, be respectively: protocol name table, for information such as storage protocol title, agreement ID, agreement accepted standard, agreement producer and specified otherwise; Protocol contents table, for the PGN numbering, SPN numbering, option, essential option, data offset, data resolution, message cycle etc. of storage protocol content and associated agreement ID thereof, agreement; Protocal analysis table, for storing the indication information gone out from each charging packet parsing collected.During use, each index in the agreement in protocol contents table and protocal analysis table is contrasted, judges whether there is index deletion condition in protocal analysis table.If so, then show that current charging message is illegal, namely do not meet the content requirement of communication protocol standard, stop present procedure; If not, then need the content judging current charging message further whether correct, if not, then show that current charging message is illegal, stop present procedure, if so, then need to judge that whether the transmission cycle of current charging message is correct further; If the transmission cycle of current charging message is correct, then show that current charging message is legal, otherwise, show that current charging message is illegal, need terminator.
By the embodiment of the present invention, detect charging message successively and whether lack, content and the cycle of transmission whether correct etc., can clear layer ground, whether detect charging message all sidedly legal.
Alternatively, said apparatus also comprises: resolution unit, for after obtaining the charging pile charging message mutual with the electric automobile using charging pile to charge, resolves charging message, obtains the delivery time of charging message; Determining unit, for determining the sequential logic of the electric automobile using charging pile to charge according to the delivery time of charging message; Whether the second detecting unit, meet the timing requirements of the communication protocol standard preset for detecting sequential logic.
Pass through the embodiment of the present invention, the sequential logic of the Vehicle Controller of electric automobile can be determined simply according to the delivery time of charging message, and then determine whether this control logic meets the timing requirements of communication protocol standard, when not meeting timing requirements, can advise that the manufacturer of electric automobile adjusts its time sequence control logic, make itself and charging pile compatible.
Alternatively, said apparatus also comprises: display unit, after requiring in the content detecting the whether satisfied communication protocol standard preset of charging message, and the testing result whether content that display charging message meets the communication protocol standard preset requires.
Particularly, corresponding testing result can be shown in the mode of form or curve, like this, common car owner or charging station staff can understand current electric automobile intuitively and whether charging pile is compatible, if incompatible, the reason etc. that charging is failed can be understood further.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
In the above embodiment of the present invention, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
In several embodiments that the application provides, should be understood that, disclosed technology contents, the mode by other realizes.Wherein, device embodiment described above is only schematic, the such as division of described unit, can be that a kind of logic function divides, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of unit or module or communication connection can be electrical or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed on multiple unit.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.
If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprises all or part of step of some instructions in order to make a computer equipment (can be personal computer, server or the network equipment etc.) perform method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), portable hard drive, magnetic disc or CD etc. various can be program code stored medium.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a message detecting method, is characterized in that, comprising:
Obtain the charging message that charging pile is mutual with the electric automobile using described charging pile to charge;
Obtain the communication protocol standard preset;
Detect described charging message whether meet described in the content requirement of communication protocol standard that presets.
2. method according to claim 1, is characterized in that, after obtaining the charging pile charging message mutual with the electric automobile using described charging pile to charge, described method also comprises:
Resolve described charging message, obtain address information and the content information thereof of described charging message,
Wherein, after the address information obtaining described charging message, from the described communication protocol standard preset, search the communication protocol corresponding with the address information of described charging message, and whether the content information detecting described charging message meets the content requirement of the communication protocol corresponding with the address information of described charging message.
3. method according to claim 2, is characterized in that, the content detecting the whether satisfied communication protocol corresponding with the address information of described charging message of content information of described charging message requires to include:
Contrasted by the content information of the content information of described charging message with described corresponding communication protocol, whether the content detecting described charging message lacks;
When the content that testing result is described charging message does not lack, whether the content detecting described charging message is correct;
When testing result be the content of described charging message correct, whether the transmission cycle detecting described charging message correct.
4. method according to claim 1, is characterized in that, after obtaining the charging pile charging message mutual with the electric automobile using described charging pile to charge, described method also comprises:
Resolve described charging message, obtain the delivery time of described charging message;
The sequential logic of the electric automobile using described charging pile to charge described in determining according to the delivery time of described charging message;
Detect described sequential logic whether meet described in the timing requirements of communication protocol standard that presets.
5. method according to any one of claim 1 to 4, is characterized in that, after the content of the communication protocol standard preset described in detecting described charging message and whether meeting requires, described method also comprises:
Show described charging message meet described in the testing result that whether requires of the content of communication protocol standard that presets.
6. a packet check device, is characterized in that, comprising:
First acquiring unit, for obtaining the charging pile charging message mutual with the electric automobile using described charging pile to charge;
Second acquisition unit, for obtaining the communication protocol standard preset;
First detecting unit, for detect described charging message whether meet described in the content requirement of communication protocol standard that presets.
7. device according to claim 6, is characterized in that, described device also comprises:
Resolution unit, for after obtaining the charging pile charging message mutual with the electric automobile using described charging pile to charge, resolves described charging message, obtains address information and the content information thereof of described charging message,
Wherein, described second acquisition unit is also for after the address information obtaining described charging message, from the described communication protocol standard preset, search the communication protocol corresponding with the address information of described charging message, whether the content information of described first detecting unit also for detecting described charging message meets the content requirement of the communication protocol corresponding with the address information of described charging message.
8. device according to claim 7, is characterized in that, described first detecting unit also comprises:
Contrast module, for being contrasted by the content information of the content information of described charging message with described corresponding communication protocol, whether the content detecting described charging message lacks;
First detection module, in testing result be the content of described charging message do not lack, whether the content detecting described charging message correct;
Second detection module, the content in testing result being described charging message is correct, whether the transmission cycle detecting described charging message is correct.
9. device according to claim 6, is characterized in that, described device also comprises:
Resolution unit, for after obtaining the charging pile charging message mutual with the electric automobile using described charging pile to charge, resolves described charging message, obtains the delivery time of described charging message;
Determining unit, for the sequential logic of the electric automobile that using described charging pile to charge described in determining according to the delivery time of described charging message;
Second detecting unit, for detect described sequential logic whether meet described in the timing requirements of communication protocol standard that presets.
10. the device according to any one of claim 6 to 9, is characterized in that, described device also comprises:
Display unit, after requiring in the content of the communication protocol standard preset described in detecting described charging message and whether meeting, show described charging message meet described in the testing result that whether requires of the content of communication protocol standard that presets.
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Application publication date: 20160504 |