CN109934271A

CN109934271A - Charging behavior recognition methods, device, terminal device and storage medium

Info

Publication number: CN109934271A
Application number: CN201910151373.1A
Authority: CN
Inventors: 卢露
Original assignee: Shenzhen Zhi Chain Physical Technology Co Ltd
Current assignee: Guizhou Taten Electric System Co ltd
Priority date: 2019-02-28
Filing date: 2019-02-28
Publication date: 2019-06-25
Anticipated expiration: 2039-02-28
Also published as: CN109934271B

Abstract

The embodiment of the present application is suitable for vehicle technology field, disclose a kind of charging behavior recognition methods, device, terminal device and computer readable storage medium, wherein, method includes: the charge data for obtaining the electric vehicle that charging pile uploads, and charge data includes charging current data；Judge whether charging current data meets preset condition, preset condition is and to advance to the charge data of the first predetermined time from the initial time of period and finish time from the period is belonging respectively to different charge types to the charge data of the second predetermined time backward in charging initial time and there are the periods that electric current is continuously default value between the end time；When charging current data meets preset condition, the behavior for existing in charging process and being changed trains is determined.The embodiment of the present application can identify in charging process with the presence or absence of the charging behavior changed trains.

Description

Charging behavior recognition methods, device, terminal device and storage medium

Technical field

The application belong to vehicle technology field more particularly to a kind of charging behavior recognition methods, device, terminal device and Computer readable storage medium.

Background technique

With the continuous development of science and technology, the application of electric vehicle is also more and more extensive.

Currently, when car owner is charged using charging station for electric vehicle, after completing corresponding charging order and paying, charging pile Respective socket be electrically energized, then, electric vehicle can be connected to charging pile by the adapter of electric vehicle, charging cable by car owner Respective socket, to charge to electric vehicle.

In electric vehicle charging process, need to ensure the interests of car owner, to guarantee the charging experience of user.If charging The case where occurring electric vehicle plug in the process to be pulled up by other people, changing another electric vehicle charging into, will lead to the benefit of charge user Benefit is impaired, reduces the charging experience of user.And the charging behavior for being changed trains in charging process, there is presently no effective Recognition methods.

Summary of the invention

In view of this, the embodiment of the present application provides a kind of charging behavior recognition methods, device, terminal device and computer Readable storage medium storing program for executing whether there is the behavior changed trains to solve not identifying in the prior art in electric vehicle charging process, from And the problem of reducing user's charging experience.

The first aspect of the embodiment of the present application provides a kind of charging behavior recognition methods, comprising:

The charge data for the electric vehicle that charging pile uploads is obtained, the charge data includes charging current data；

Judge whether the charging current data meets preset condition, the preset condition is in charging initial time and knot There are the periods that electric current is continuously default value between the beam time, and advance to first in advance from the initial time of the period If the charge data at moment and the finish time from the period are belonging respectively to the charge data of the second predetermined time backward Different charge types；

When the charging current data meets the preset condition, the behavior for existing in charging process and being changed trains is determined.

With reference to first aspect, described to judge whether the charging current data meets in a kind of feasible implementation Preset condition, comprising:

According to the charging current data, charging current curve is generated；

Charging curve samples pictures are converted by the charging current curve；

By charging curve samples pictures input neural network model trained in advance, the charging current curve is obtained Corresponding charge mode；

When the charge mode is preset charged mode, the charging current data meets the preset condition, described Preset charged mode is to be configured to two times upper non-conterminous fisrt feature or two times upper non-conterminous second spy substantially The corresponding charge mode of the charging current curve of sign, the fisrt feature is the first stage in three stage charging system curve, described Second feature is the second stage in three stage charging system curve；

When the charge mode is non-default charge mode, the charging current data does not meet the preset condition.

With reference to first aspect, in a kind of feasible implementation, the neural network model be include input layer, first The neural network based on the sparse coding certainly of stacking of hidden layer, the second hidden layer, more classification layers and output layer；

The neural network model that charging curve samples pictures input is trained in advance, obtains the charging current The corresponding charge mode of curve, comprising:

The charging curve samples pictures are obtained by the input layer；

The charging curve samples pictures are inputted into first hidden layer, so that first hidden layer is to the charging Curve samples pictures carry out feature extraction operation, export the first current curve feature；

The first current curve feature is inputted into second hidden layer, so that second hidden layer is to described first Current curve feature carries out feature extraction operation, exports the second current curve feature, the precision of the second current curve feature Higher than the first current curve feature；

By the second current curve feature input layers of classifying, so that more classification layer identifications second electricity more Flow curve feature obtains charge mode classification results according to the corresponding relationship of current curve feature and charge mode；

The charge mode classification results are inputted into the output layer, so that the output layer exports the charge mode.

By charging current data input Random Forest model trained in advance, it is corresponding to obtain the charging current data Charge mode；

When the charge mode is preset charged mode, the charging current data meets the preset condition, described Preset charged mode is to be configured to two times upper non-conterminous fisrt feature or two times upper non-conterminous second spy substantially The corresponding mode of the charging current curve of sign, the fisrt feature be three stage charging system curve in first stage, described second Feature is the second stage in three stage charging system curve；

With reference to first aspect, in a kind of feasible implementation, the Random Forest model be include n decision tree Model, n are the positive integer greater than zero；

The Random Forest model that charge data input is trained in advance, it is corresponding to obtain the charging current data Charge mode, comprising:

Classified by the n decision tree to the charging current data, obtains n classification results；

Determine final classification as a result, using the final classification result as the charging mould from the n classification results Formula, the final classification result are the classification results that quantity is more than or equal to n/2 in the n classification results.

With reference to first aspect, in a kind of feasible implementation, judge whether the charging current data accords with described Before conjunction preset condition, further includes:

According to the charging voltage data in the charge data, whether the charging station where judging the charging pile stands The case where point spread of voltage；

When the charging station does not occur the case where website spread of voltage, it is into the subsequent judgement charging current data No the step of meeting preset condition.

With reference to first aspect, in a kind of feasible implementation, exist in the determining charging process and changed trains After behavior, further includes:

Generate prompt information；

The prompt information is presented to charge user by user terminal, to prompt in the charge user charging process In the presence of the behavior of changing trains.

The second aspect of the embodiment of the present application provides a kind of charging behavior identification device, comprising:

Charge data obtains module, the charge data of the electric vehicle for obtaining charging pile upload, the charge data packet Include charging current data；

Judgment module, for judging whether the charging current data meets preset condition, the preset condition is to fill There are the periods that electric current is continuously default value between electrical initiation time and end time, and from when the starting of the period Carve the charge data for advancing to the first predetermined time and finish time from the period filling to the second predetermined time backward Electric data are belonging respectively to different charge types；

Identification module, for determining in charging process and existing when the charging current data meets the preset condition The behavior changed trains.

In conjunction with second aspect, in a kind of feasible implementation, the judgment module includes:

Curve generation unit, for generating charging current curve according to the charging current data；

Conversion unit, for converting charging curve samples pictures for the charging current curve；

First charge mode recognition unit, for the neural network that charging curve samples pictures input is trained in advance Model obtains the corresponding charge mode of the charging current curve；

First determination unit, for when the charge mode is preset charged mode, the charging current data to meet The preset condition, the preset charged mode are to be configured to two times upper non-conterminous fisrt feature or two times substantially The corresponding charge mode of charging current curve of upper non-conterminous second feature, the fisrt feature are in three stage charging system curve First stage, the second feature be three stage charging system curve in second stage；

Second determination unit, for when the charge mode is non-default charge mode, the charging current data to be not Meet the preset condition.

In conjunction with second aspect, in a kind of feasible implementation, the neural network model be include input layer, first The neural network based on the sparse coding certainly of stacking of hidden layer, the second hidden layer, more classification layers and output layer；

The first charge mode recognition unit includes:

Subelement is obtained, for obtaining the charging curve samples pictures by the input layer；

Fisrt feature extracts subelement, for the charging curve samples pictures to be inputted first hidden layer, so that First hidden layer carries out feature extraction operation to the charging curve samples pictures, exports the first current curve feature；

Second feature extracts subelement, for the first current curve feature to be inputted second hidden layer, so that Second hidden layer carries out feature extraction operation to the first current curve feature, exports the second current curve feature, institute The precision for stating the second current curve feature is higher than the first current curve feature；

First classification subelement, for the second current curve feature to be inputted the layers of classifying more, so that described more Classification layer identifies that the second current curve feature is charged according to the corresponding relationship of current curve feature and charge mode Pattern classification result；

Subelement is exported, for the charge mode classification results to be inputted the output layer, so that the output layer is defeated The charge mode out.

Second charge mode recognition unit, for the random forest mould that charging current data input is trained in advance Type obtains the corresponding charge mode of the charging current data；

Third determination unit, for when the charge mode is preset charged mode, the charging current data to meet The preset condition, the preset charged mode are to be configured to two times upper non-conterminous fisrt feature or two times substantially The corresponding mode of charging current curve of upper non-conterminous second feature, the fisrt feature are the in three stage charging system curve One stage, the second feature are the second stage in three stage charging system curve；

4th determination unit, for when the charge mode is non-default charge mode, the charging current data to be not Meet the preset condition.

In conjunction with second aspect, in a kind of feasible implementation, the Random Forest model be include n decision tree Model, n are the positive integer greater than zero；

The second charge mode recognition unit includes:

Second classification subelement obtains n for classifying by the n decision tree to the charging current data A classification results；

Subelement is chosen, for determining final classification as a result, by the final classification result from the n classification results As the charge mode, the final classification result is the classification knot that quantity is more than or equal to n/2 in the n classification results Fruit.

In conjunction with second aspect, in a kind of feasible implementation, further includes:

Website voltage judgment module, for judging the charging pile according to the charging voltage data in the charge data Whether the charging station at place there is the case where website spread of voltage；

Into module, for not occurring the case where website spread of voltage when the charging station, into described in subsequent judgement The step of whether charging current data meets preset condition.

Generation module, for generating prompt information；

Cue module, for the prompt information to be presented to charge user by user terminal, to prompt the charging There is behavior of changing trains in user's charging process.

The third aspect of the embodiment of the present application provides a kind of terminal device, including memory, processor and is stored in institute The computer program that can be run in memory and on the processor is stated, the processor executes real when the computer program Now such as the step of any one of above-mentioned first aspect the method.

The fourth aspect of the embodiment of the present application provides a kind of computer readable storage medium, the computer-readable storage medium Matter is stored with computer program, and the side as described in above-mentioned any one of first aspect is realized when the computer program is executed by processor The step of method.

Existing beneficial effect is the embodiment of the present application compared with prior art:

The embodiment of the present application judges to fill in charging process with the presence or absence of the behavior changed trains by charging current data There is intermediate a period of time electric current and be continuously default value in electric current, and electric current is continuously the charge data point before and after default value Do not belong to different charging class process, then occur the behavior changed trains in charging process, to realize in charging process The identification for the charging behavior changed trains improves user's charging experience.

Detailed description of the invention

It in order to more clearly explain the technical solutions in the embodiments of the present application, below will be to embodiment or description of the prior art Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only some of the application Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these Attached drawing obtains other attached drawings.

Fig. 1 is charging scenarios schematic diagram provided by the embodiments of the present application；

Fig. 2 is a kind of schematic process flow diagram of charging behavior recognition methods provided by the embodiments of the present application；

Fig. 3 is charging curve schematic diagram provided by the embodiments of the present application；

It is that the another of charging behavior recognition methods provided by the embodiments of the present application flows that Fig. 4, which is provided by the embodiments of the present application, Journey schematic block diagram；

Fig. 5 is provided by the embodiments of the present application sparse from the neural network schematic diagram encoded based on stacking；

Fig. 6 is charge mode identification process schematic block diagram provided by the embodiments of the present application；

Fig. 7 is the current curve feature schematic diagram of the first hidden layer provided by the embodiments of the present application output；

Fig. 8 is the current curve feature schematic diagram of the second hidden layer provided by the embodiments of the present application output；

Fig. 9 is another schematic process flow diagram of charging behavior recognition methods provided by the embodiments of the present application；

Figure 10 is Random Forest model schematic diagram provided by the embodiments of the present application；

Figure 11 is the confusion matrix schematic diagram of Random Forest model provided by the embodiments of the present application；

Figure 12 is the structural schematic block diagram of charging behavior identification device provided by the embodiments of the present application；

Figure 13 is the schematic diagram of terminal device provided by the embodiments of the present application.

Specific embodiment

In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed Body details, so as to provide a thorough understanding of the present application embodiment.However, it will be clear to one skilled in the art that there is no these specific The application also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity The detailed description of road and method, so as not to obscure the description of the present application with unnecessary details.

Before introducing the specific technical solution of the embodiment of the present application, the embodiment of the present application may relate to first application Explanation is introduced in scene.

Referring to charging scenarios schematic diagram shown in fig. 1, under the charging scenarios include charging station 1, electric vehicle to be charged 2, Server 3, user terminal 4, interior charging station 1 includes at least one charging pile 11.User terminal can by carrier network with Background server communication, charging station and charging pile can be communicated by the place network in charging station with background server, be used Family terminal can be communicated by internet with charging pile.There is at least one socket on charging pile, charging car owner can be by electronic Electric vehicle to be charged is connected to the socket of charging pile by vehicle adapter, charging cable and plug.When charging car owner passes through user's end After charging order payment is completed at end, background server can control the corresponding socket of charging pile and be powered, and can treat charging electric Motor-car charges.

Wherein, corresponding APP is installed, to realize and the corresponding industry such as backstage interaction, calculating, human-computer interaction in user terminal Business function, which can be specially the intelligent terminals such as mobile phone, plate.Electric vehicle to be charged can be specially electrical salf-walking Vehicle, battery-operated motor cycle or electric car etc..

Car owner charge by the two dimensional code on user terminal barcode scanning charging pile, user terminal get two-dimensional barcode information it After jump to corresponding interface；On the surface, charging car owner can carry out the behaviour such as charge mode selection, charging amount of money input Make；After determining charging order information, which can be uploaded to server by charging pile, server by with user terminal Data interaction is carried out, after completing order payment, server is notified that charging pile, charging pile can then control respective socket energization, Then, charging car owner can then start to charge.

During the charging process, charging pile can acquire the charge datas such as charging current, charging voltage, charge power, and will The charge data is uploaded to server.Specifically, charging pile is after collecting the charge data of electric vehicle, to background server Reporting equipment telemetering message, which may include the information such as charging current, voltage, charge power, so that backstage Server can collect the charge data of each electric vehicle to charge on charging pile.After the completion of to be charged, background server It can store when time relevant information of charging order, and the charge data of charge order and charging process is associated storage.

After server receives the charge data that charging pile reports, charging current curve, charging can be correspondingly drawn Voltage curve, power curve etc..Then, server identifies that is reported fills according to data such as charging current curve, voltage curves The corresponding charge mode of electric data.After identifying charge mode, can be determined according to charge mode in charging process whether There are the either unsound charging behaviors of some unusual conditions can pass through in real time if identifying corresponding charging behavior User terminal feeds back to user.

It is to be appreciated that above-mentioned mentioned application scenarios are only exemplary scene, do not cause to the embodiment of the present application The restriction of concrete scene.

It, below will be to skill provided by the embodiments of the present application after having introduced the application scenarios that the embodiment of the present application may relate to Art scheme describes in detail explanation.In order to illustrate technical solution described herein, carried out below by specific embodiment Explanation.

Embodiment one

Fig. 2 is referred to, is a kind of schematic process flow diagram of charging behavior recognition methods provided by the embodiments of the present application, the party Method may comprise steps of:

Step S201, the charge data for the electric vehicle that charging pile uploads is obtained, charge data includes charging current data.

It is to be appreciated that above-mentioned charge data generally comprises charging voltage data, charging current data and charge power number According to.And in electric vehicle charging process, charging voltage and charge power are usually invariable, in some cases it may It is based only on charging current data and carries out corresponding analysis identification, at this point, above-mentioned charge data can only include charging current data.And In other cases, it needs to use charging current data and charging voltage data, at this point, above-mentioned charge data can only include Charging voltage data and charging current data.

The charge data can be the data that charging pile uploads in real time, i.e., passes through power supply adaptor, charging cable in electric vehicle During the socket of connection charging pile is charged, charge data collected is passed through the formal of telemetering message by charging pile Background server is offered, background server parses the telemetering message, according to relevant information entrained by telemetering message, for example, filling Electric unique ID of stake equipment etc., obtains the charge data that each charging pile reports.Certainly, which is also possible to history charging Data, the history charge data are obtained by storing the electric vehicle charge data that charging pile uploads in real time.

Step S202, judge whether charging current data meets preset condition, when charging current data meets preset condition When, S203 is entered step, conversely, entering step S204 when charging current data does not meet preset condition.

Wherein, preset condition be charge initial time and between the end time there are electric current be continuously default value when Between section, and advance to the charge data of the first predetermined time and finish time from the period backward from the initial time of period Charge data to the second predetermined time is belonging respectively to different charge types.

It is to be appreciated that above-mentioned default value can be zero, i.e., during terminating since charging to charging, when centre has one section Between current value be continuously zero；The default value may be other non-zero values, which is typically less than steady section electricity 50% numerical value of flow valuve.

Above-mentioned first predetermined time and the second predetermined time can determine by actual charging current data, this is first pre- If the moment be usually charge initial time, the second predetermined time is usually charging finishing time, at this point, from charging initial time to The charge data being continuously between the initial time of the period of default value belongs to a charging process class, and pre- from being continuously If the finish time of the period of numerical value to the charge data between charging finishing time belongs to another charging process class.Change sentence It talks about, is continuously the charge data before and after the period of default value and belongs to two different charging processes, that is, be continuously default Charging electric vehicle before and after the period of numerical value is different two electric vehicles.

In order to preferably introduce the form of expression for the charging current data for meeting preset condition, shown in Figure 3 fills Electric curve synoptic diagram includes 9 width figures in Fig. 3, is in three rows, three column distribution, this 9 width figure is according to charging voltage data and charging The charge graph that current data is accordingly drawn includes charging current curve and charging voltage curve in every width figure.

Wherein, the horizontal axis in every width figure indicates the time, and left side vertical pivot indicates that electric current, the right vertical pivot indicate voltage, every width figure In it is constant near 220V, continue for some time directly be kept to afterwards zero curve be charging voltage curve, that is, one charge In period, charging voltage keeps 220V constant, and fluctuates little.And another song in every width figure in addition to charging voltage curve Line is charging current curve.

The charge graph shown in Fig. 3 the second row first row as it can be seen that near t=100, be down to suddenly by charging current value Zero, and continue to t=200, it then skyrockets again to certain numerical value.At this point, default value is zero, it is continuously for zero period Initial time between near t=200, to be continuously for zero period near t=100 is near t=100, to be continuously zero Period finish time be t=200 near, and the first predetermined time be t=0, the second predetermined time be t=400.Hold very much Easily find out, the charging curve for being continuously zero front and back is different two charging current curves.The first row first row in Fig. 3, A line third column, the third line first row and the tertial charge graph of the third line and the second row first row described above Charge graph is similar.And from the charge graph of the first row secondary series in Fig. 3 as it can be seen that its default value is not zero, and should Default value is less than the 50% of steady section current value (1.2A or so), similar with the tertial curve graph of the second row in Fig. 3.

In the specific implementation, judging whether the detailed process of preset condition may include: first according to charging to charging current data Current data identifies the corresponding charge mode of the current data, then determines whether the current data accords with according to charge mode It closes and states preset condition.Wherein, the identification of charge mode can be carried out by Random Forest model, at this point, in advance train with Current data, is then input in Random Forest model by machine forest model, and charge mode can be obtained；It can also be first by charging Data conversion is converted to samples pictures at charging curve, then by charging curve, then utilizes neural network model trained in advance Charge mode identification is carried out to the samples pictures, obtains recognition result.It is of course also possible to by being different from above two mode Judgment mode realizes the judgement of charging current data.

The material type of each battery of electric vehicle, all kinds of component contents, battery capacity, residue SOC, cell degradation degree, Charging adapter, generation producer etc. are different, lead to battery during the charging process and will appear the various electric current forms of expression, There can not be identical two electric vehicles of current curve, therefore can be with charging current curve to the current charging shape of battery State, the safety of battery, the degree of aging of battery, safety of user's charging behavior etc. identify and judge.Further Charging Activity recognition is carried out in conjunction with practical charging scenarios and type of service.

In other words, when occurring the behavior changed trains during the charging process, in some cases, it can be possible to need to pull out The charging plug of electric vehicle, plug again an other electric vehicle charging plug movement, in this process, charging current can Zero or some numerical value can be dropped suddenly to, and continue for some time and (may be considered that pull out plug slotting to plugging the duration Direct time interval), and being continuously the charging curve before and after the period of default value is to belong to different charge types.When So, in other cases,

Step S203, there is the behavior changed trains in charging process.

Step S204, there is no the behaviors changed trains in charging process.

Refer to that the electric vehicle that will currently charge changes another electric vehicle charging into it is appreciated that changing trains.In view of filling It is lower that a possibility that behavior changed trains occurs during the charging process in electric car master, therefore under normal circumstances it is considered that the behavior of changing trains is it What its user executed.That is, the electric vehicle that other car owners are charging has been changed into the electric vehicle of oneself by some users, this Sample, the user do not have to pay i.e. chargeable, but this stealing electricity behavioral implications legitimate interests of charges paid car owner.

The embodiment of the present application is realized in conjunction with practical charging scenarios and type of service to charging according to charging current data In the process by the identification for the behavior of changing trains, and it can timely feedback after identifying this behavior and give charging car owner, to ensure The interests of charging car owner provide charging experience.

It in some embodiments, can also include: that generation mentions after there is the behavior changed trains in determining charging process Show information；It will be prompted to information by user terminal and be presented to charge user, changed trains with prompting to exist in charge user charging process Behavior.Wherein, which refers to the information for behavior of having changed trains in characterization charging process, for example, the prompt information can be " according to charging curve intellectual analysis, suspecting that charging is replaced by other Vehicular chargings on the way ".The prompt information can by mobile phone, The display screen of the user terminals such as plate is presented to the user.

In addition, charging current is influenced by charging station voltage, in order to improve identification accuracy, charging station can be first judged Whether website voltage is stable, then judges whether charging current data meets preset condition again.Therefore in some embodiments, upper It states before judging whether charging current data meets preset condition, can also include: according to the charging voltage number in charge data According to whether the charging station where judging charging pile the case where website spread of voltage occurs；When charging station does not occur website voltage The step of whether charging current data meets preset condition judged into subsequent for unstable situation.

Wherein it is possible to set voltage and fluctuated between 200~240V be it is normal, can according to the collected charging voltage of institute To judge whether website voltage is stable, if phenomena such as high pressure, under-voltage, oscillation occur.If website voltage stabilization, Subsequent charging current judgment step can be entered.Certainly, in some other embodiment, can also not have to carry out website voltage Judgement.

In the present embodiment, judge to fill in charging process with the presence or absence of the behavior changed trains by charging current data There is intermediate a period of time electric current and be continuously default value in electric current, and electric current is continuously the charge data point before and after default value Do not belong to different charging class process, then occur the behavior changed trains in charging process, to realize in charging process The identification for the charging behavior changed trains improves user's charging experience.

Embodiment two

Fig. 4 is referred to, is another schematic process flow diagram of charging behavior recognition methods provided by the embodiments of the present application, it should Method may comprise steps of:

Step S401, the charge data for the electric vehicle that charging pile uploads is obtained, charge data includes charging current data.

Step S402, according to charging current data, charging current curve is generated.

Specifically, according to data such as charging current, voltages, corresponding curve is drawn out in the coordinate system of setting.

It is to be appreciated that under normal circumstances, charge data mainly includes electric current, voltage and power, and the charging of electric vehicle Power be usually it is constant, power curve battery status analysis identification on can play the role of very little, voltage identification mistake Journey is relatively simple, can generally complete before electric current identification.Therefore, in some cases, it is only necessary to current curve or electricity Flow curve and voltage curve.In addition, the material type of battery of electric vehicle, all kinds of component contents, battery capacity, residue SOC, Cell degradation degree, charging adapter, manufacturer etc. are different, lead to battery during the charging process and will appear and is various The electric current form of expression, it is impossible to which there are identical two electric vehicles of current curve, therefore can be with charging current curve to battery Present charge state, the charge safety etc. of behavior of the safety of battery, user identifies and judges.In other words, exist During charge mode identifies, the analysis identification that current curve carries out charge mode is depended on.

Step S403, charging curve samples pictures are converted by charging current curve.

Specifically, current curve is converted to the picture of certain pixel size (such as 128 × 128)；To the picture pixels Gray value is standardized, and obtains charging curve samples pictures.Wherein it is possible to pass through the standardized side of logarithm Logistic Formula handles picture, so that the pixel value of picture is fallen between 0~1.

Step S404, the input of charging curve samples pictures is trained in advance neural network model, obtains charging current song The corresponding charge mode of line.

It is to be appreciated that above-mentioned neural network model can be based on the sparse neural network from coding is stacked, which can To specifically include input layer, two layers of hidden layer, more classification layers and output layer.The neural network model is advanced with including all The current data of charge mode is trained, to obtain suitable network parameter.The neural network model can be from charging curve Extract corresponding current curve feature in samples pictures, and identify the current curve feature, according to the current curve feature and The corresponding relationship of charge mode obtains the corresponding charge mode of the charging curve.

The charging current curve of different electric vehicles be it is different, still, different charge datas but may include certain A little identical features, different feature combinations may be constructed different charge modes.Wherein, current curve feature can refer to table The feature of the curve of certain shapes is levied, i.e., with a certain section of character representation certain curve shape or the curve of certain function.For example, electric Notch feature in flow curve feature, the corresponding one section of current curve in groove shapes of the notch feature, is embodied in electric current After one is persistently slowly drop down to not for 0 numerical value, and then slowly rises to and differed with decline process starting position electric current The position below 0.2A.

In another example charging current curve is usually three-stage, normal three stage charging system curve includes first stage, Two-stage and phase III regard first stage, second stage, phase III corresponding curve as a current curve respectively Feature, that is, first stage feature, second stage feature and phase III feature, wherein first stage character representation is normal The curve of first segment in three stage charging system curve；Under continuing in the normal three stage charging system curve of second stage character representation Section drops, and the time span declined is half an hour；Continue in the normal three stage charging system curve of phase III character representation Charging duration is greater than 1 hour after descending branch, and current value is lower than one section of curve of 0.3A.

The rest may be inferred, shape and other characteristics for current curve, with the different curved section of different character representations. In the present embodiment, charging current curve feature may include 14, be respectively as follows: groove, first stage, second stage, third Stage, the first stage part oscillation, second stage part oscillation, the phase III part oscillation, it is convex, start electric current be less than 0.3A, Intermediate is 0, single ladder, intermediate ladder, full oscillation, multiple lasting ladders.It certainly, can also be as needed in practical application Increase or decrease the classification of current curve feature.

The sequential combination of different curvilinear characteristics can characterize different charge modes, i.e., wrapped according in charging current curve The chronological order that the curvilinear characteristic contained and these curvilinear characteristics occur, corresponding different charge mode.In the present embodiment In, charge mode may include 13, which may include: an only stage, only a two-stage, three stages Entirely, one or three stages, only two or three stages, only more three stages, high current, vehicles of the same order same period fill simultaneously More vehicles of electric, same order different periods charge respectively, the temperature control time is greater than the charging of 2 hours, full oscillation, stop suddenly (extraneous factor) stops (non-extraneous factor) suddenly.Wherein, different charge modes are combined to obtain by different curvilinear characteristics.Example Such as, " an only stage " corresponding charging current curve of charge mode only has " first stage " curvilinear characteristic, that is, charging at this time Current curve only includes the first segment in normal three stage charging system curve.

After the picture of corresponding charging current curve is input to neural network model, neural network model can be extracted Curvilinear characteristic determines the corresponding charge mode of the charging current curve according to extracted curvilinear characteristic.If for example, some It include first stage, second stage and the phase III in normal three-stage curve in charging current curve, then by the charging Curve picture is input to after neural network model, and neural network model can then extract " first stage " feature, " second-order Section " feature and " phase III " feature, then according to " first stage " feature, " second stage feature " and " phase III " The time of occurrence of feature determines the corresponding charge mode of the charging current curve, if the chronological order of three features is " first stage " feature, " second stage " feature, " phase III " feature, then neural network model can determine the charging current The corresponding charge mode of curve is " three stages are complete ".

In some embodiments, above-mentioned neural network model be include input layer, it is the first hidden layer, the second hidden layer, more The neural network based on the sparse coding certainly of stacking of classification layer and output layer, which can be specifically as shown in Figure 5 Neural network specifically includes input layer Input L₁, hidden layer Layer L₂, hidden layer Layer L₃, output layer Output L₄.Network parameter W, h, f therein can be determined by model training.Layers of classifying are not shown in Fig. 5 more.

At this point, charge mode identification process schematic block diagram shown in Figure 6, above-mentioned to input charging curve samples pictures Trained neural network model, the detailed process for obtaining charge mode recognition result may include: in advance

Step S601, charging curve samples pictures are obtained by input layer.

Step S602, charging curve samples pictures are inputted into the first hidden layer, so that the first hidden layer is to charging curve sample This picture carries out feature extraction operation, exports the first current curve feature.

Step S603, the first current curve feature is inputted into the second hidden layer, so that the second hidden layer is to the first electric current song Line feature carries out feature extraction operation, exports the second current curve feature, and the precision of the second current curve feature is higher than the first electricity Flow curve feature.

Step S604, by the second current curve feature input layers of classifying, so that more classification layer identifications more The second current curve feature obtains charge mode classification knot according to the corresponding relationship of current curve feature and charge mode Fruit.

Step S605, the charge mode classification results are inputted into the output layer, so that described in output layer output Charge mode recognition result.

Specifically, after neural network model gets charging current curve picture, the first hidden layer can be according to picture Data extract the feature of charging current curve, input of the output of the first hidden layer as the second hidden layer, the second hidden layer Extraction further is carried out to the curvilinear characteristic inputted, obtains more accurate curvilinear characteristic, and the curvilinear characteristic is defeated At most classification layer, layers of classifying carry out mode combinations classification according to curvilinear characteristic, then export classification results to output layer more out, Obtain charge mode classification results.

It is to be appreciated that second current curve aspect ratio the first current curve feature is more accurate, the output of the first hidden layer Current curve feature can be as shown in fig. 7, the current curve feature of the second hidden layer output can be as shown in Figure 8.Second hides The precision that the effect of layer can be further improved curvilinear characteristic is extracted accordingly, it can be said that the quantity of hidden layer The precision of curvilinear characteristic is higher, conversely, the quantity of hidden layer is fewer, curvilinear characteristic precision is lower.But hide the increasing of layer number Can mostly will lead to certain features to be submerged, therefore, can according to actual needs, accuracy requirement etc. determine the number of hidden layer Amount.

The corresponding relationship of above-mentioned current curve feature and charge mode refers to preset different charge mode and each Corresponding relationship between curvilinear characteristic, different charge modes can be combined by different current curve features.In order to preferably The relationship between current curve feature, current curve feature and charge mode is introduced, is illustrated below in conjunction with Tables 1 and 2.

1 charging current curve mark sheet of table

Upper table 1 be charging current curve mark sheet, for convenience, when this 14 features are described below, respectively with A~ N capitalization accordingly indicates.In table 1, each feature has corresponding feature description, indicatrix, and indicatrix refers to this The expression of the corresponding curve shape of feature.It is appreciated that in a particular application, can also define as needed different from upper table 1 Shown in curvilinear characteristic.

Different features is combined available different charge mode.14 features in above-mentioned table 1 are carried out Combination, available 13 kinds of small charge modes, 13 kinds of small charge modes can be divided into 4 kinds of big charge modes again, and 4 The big charge mode of kind is respectively to charge normal, abnormal charging, vibrate charging entirely and stop charging suddenly.Physical relationship is as follows Shown in table 2.

2 charge mode table of table

Upper table 2 shows 13 kinds of small charge modes and the corresponding curvilinear characteristic of 13 kinds small charge mode combines, is corresponding Big charge mode.Wherein, the feature of A~N in table 2 in charge mode composition refers to A~N feature shown in above-mentioned table 1.It can To understand, charge mode shown in table 2 is only a kind of example, may include more or fewer charging moulds in concrete application Formula classification.

It is to be appreciated that neural network model exports 13 kinds of small charge modes the result is that in above-mentioned table 2, and filled according to small Power mode and the preset corresponding relationship of big charge mode, the corresponding big charge mode of available each small charge mode. It is of course also possible to preset the corresponding relationship of small charge mode and big charge mode, neural network in neural network model Model can also identify small charge mode and then export big charge mode according to small charge mode.That is, neural network model Output result be also possible to the big charge mode of above-mentioned table 2.Certainly, output result can also simultaneously include small charge mode and Big charge mode.

It is appreciated that above-mentioned neural network model can be what training in advance was completed, and the training of the neural network model Process can specifically include: obtain training sample data collection, training sample data collection be include the corresponding electricity of all charge modes The data set of flow curve samples pictures；Data preprocessing operation is carried out to training sample data collection；According to pretreated training Sample data set is trained the neural network model pre-established.

It is appreciated that above-mentioned training sample data collection includes multiple pictures, it include all charge modes pair in the data set The picture for the charging curve answered.

Wherein, picture can be converted to the picture of a standard by data preprocessing operation.For example, samples pictures are big Small is 128 × 128 pixels, and above-mentioned third presetted pixel size is 8 × 8 pixels, and the first preset quantity is 1000, the second present count Amount is 500,000, and third preset quantity is 30,000.Firstly, converting 128 × 128 for the current data of all charging curve modes Then the picture of pixel size extracts the small of 1000 8 × 8 pixels at random from the picture of each 128 × 128 pixels Picture, and these small pictures are divided into U1, U2 two major classes, the small picture in U1 include current curve and picture background, in U2 Small picture only includes picture background.Then, randomly selected out respectively from U1 data set and U2 data set 50 Wan Zhang little pictures and 3 Wan Zhang little pictures form 530,000 training samples, and press logarithm Logistic to the grey scale pixel value of this 530,000 training samples Mode makees standardization, so that the grey scale pixel value of training sample is fallen between 0~1.By 530,000 after standardization A training sample is denoted as X={ x₁, x₂..., x_n, n=530000.

For example, when neural network model is neural network as shown in Figure 5, by training sample X={ x₁, x₂..., x_nBe input to after neural network, hidden layer L₂Extracting obtained current curve feature is Λ_m={ λ₂₁, λ₂₂..., λ_2m, hidden layer L₃To Λ_mFeature extraction is carried out, Λ is obtained_k={ λ₃₁, λ₃₂..., λ_3k, hidden layer L₃By Λ_kThe more classification of input Layer, obtains classification results, then classification results are exported to output layer L₄, obtain output result Y={ y₁, y₂..., y_n}.Meanwhile It can also obtain to obtain input layer L₁With hidden layer L₂Between parameter ω, hidden layer L₂With hidden layer L₃Between parameter h, it is hidden Hide layer L₃With output layer L₄Between parameter f.

After training, obtained training result can be detected, when the training result of output and the charging of setting When difference between mode is in acceptable accuracy rating, then corresponding network parameter can be determined, subsequently into identification rank Section.

After identifying charge mode, charging behavior can be further identified according to charge mode.

Step S405, judge whether charge data is preset charged mode.When charge mode is preset charged mode, into Enter step S406, conversely, entering step S407 when charge mode is non-default charge mode.

Step S406, charging current data meets preset condition, determines the behavior for existing in charging process and being changed trains.It is default Charge mode is to be configured to two times upper non-conterminous fisrt feature or two times upper non-conterminous second feature substantially The corresponding charge mode of charging current curve, fisrt feature are the first stage in three stage charging system curve, second feature three Second stage in segmentation charging curve.

It is appreciated that above-mentioned preset charged mode can refer to the 9th kind of charge mode in above-mentioned table 2.The charge mode Corresponding charging current curve is configured to two B features or two C features substantially, and identical feature not phase in time It is adjacent.When analyzing by neural network model charge data, determine that the different periods of the same charging order there are more vehicle chargings, It may be considered that being to have been changed vehicle in charging process, conversely, not changed trains then.

Step S407, charging current data does not meet preset condition, determines that there is no the behaviors changed trains in charging process.

It can be seen that charge data of the present embodiment based on electric vehicle, by based on the nerve net stacked from sparse coding With the presence or absence of the charging behavior changed trains in network model identification charging process, user's charging experience is improved.

Embodiment three

Fig. 9 is referred to, is another schematic process flow diagram of charging behavior recognition methods provided by the embodiments of the present application, it should Method may comprise steps of:

Step S901, the charge data for the electric vehicle that charging pile uploads is obtained, charge data includes charging current data.

Step S902, charge data input is trained in advance Random Forest model, obtains the corresponding charging of charge data Mode.

It is to be appreciated that Random Forest model can be the model for including n decision tree, n is the positive integer greater than zero, the mould Type can model in the Random Forest model schematic diagram of specific Figure 10, as shown in Figure 10 comprising decision tree Tree1, Tree2 ... Tree (n-1), Tree (n), every decision tree carry out classification processing to corresponding random sample collection, obtain corresponding Classification results Class1, Class1 ... type 2, type 3.At this point, the above-mentioned random forest mould that charge data input is trained in advance Type, the detailed process for obtaining the charge mode of charge data may include: to be divided by n decision tree charging current data Class obtains n classification results；Determine final classification as a result, by final classification result from n classification results by voting mechanism As charge mode, final classification result is the classification results that quantity is more than or equal to n/2 in n classification results.Wherein, random After each decision tree obtains classification results in forest, voting mechanism can use, quantity accounting is reached to 50% or more point Class result is as final classification as a result, the classification results result is the corresponding charge mode recognition result of charge data.For example, As shown in figure 3, being then " class by the final result of ballot when the quantity accounting of classification results " Class1 " reaches 50% or more Type 1 ".

The output result of random forest is usually 13 kinds of small charge modes shown in table 2 in above-described embodiment two, and according to Small charge mode and the preset corresponding relationship of big charge mode, the corresponding big charging mould of available each small charge mode Formula.It is of course also possible to preset the corresponding relationship of small charge mode and big charge mode in Random Forest model, in this way with Machine forest model is obtaining small charge mode and then is exporting big charge mode according to small charge mode, that is, Random Forest model Output result be also possible to the big charge mode of above-mentioned table 2.Certainly, output result can also simultaneously include small charge mode and Big charge mode.

After charging current data is input to Random Forest model, each decision tree in random forest is according to preparatory instruction Experienced model parameter, two Tables 1 and 2, classifies to the charging current data based on the above embodiment, obtains classification knot Fruit, each classification results are pattern classification of each decision tree to the charging current data, finally by each classification results of statistics Quantity, using the classification results of 50% or more quantity accounting as the final output of model, which is Charge mode recognition result.If for example, including normal three sections in the corresponding charging current curve of some charging current data First stage, second stage and phase III in formula curve, after Random Forest model carries out Classification and Identification to the current data, It can determine that the corresponding charge mode of the charging current data is " three stages are complete ".

Wherein, the model parameter of random forest is to be obtained by training in advance, and the training process of random forest is specific It include: to obtain training sample set and corresponding charge mode label；According to training sample set and charge mode label, to random gloomy Woods model is trained.

It is appreciated that constructing the pattern recognition model i.e. random forest mould of charge data based on random forest C4.5 algorithm Type, random forest are a kind of learning algorithms for having supervision, and supervised learning algorithm needs to utilize the sample data area for having label Model is gone on patrol, model is enable to reach desired effectiveness.In the training process, random forest has the selection put back to using random Training sample set simultaneously constructs corresponding decision tree, and each decision tree randomly chooses feature again and classifies.Random forest obtains institute There are the classification results of decision tree, by the result that selects frequency of occurrence most as final output.

Above-mentioned training sample set is the data set for including the corresponding charging current data of all charge modes, voltage data, Corresponding charge mode label refers to that the corresponding charge mode of each charging current data, voltage data, the charge mode are behaved Work calibration.As shown in Figure 10, in training process, random forest extracts one with randomly putting back to from whole training samples concentration Divided data chooses n sample set as sample set altogether, obtains n decision tree, each decision tree m feature of random selection into Row classification, each decision tree obtains corresponding classification results, then by counting to obtain training result to the end.

It include these three hyper parameters of the number of Characteristic Number, the number of decision tree and leaf in Random Forest model.Pass through After enough training samples are trained model, the relevant parameter in model can be determined.It can be right after the completion of training Whether model is tested, met the expected requirements with testing model effect.Referring to obscuring for Random Forest model shown in Figure 11 For matrix schematic diagram it is found that it is to test under the parameter setting of default Random Forest model, the classification for obtaining 32 classes is smart Degree is 84.3%, from Figure 11 it can also be seen that when the classification of training data is more, due to having spy between each charge mode The part for levying overlapping, can have a certain impact to precision, therefore 32 kinds of charge modes in Figure 11 can be merged into table 2 above 13 class charge modes, after merging, nicety of grading be can be improved to 87%.Certainly, in practical application, point of charge mode Class can be set according to actual needs.

After identifying charge mode, charging behavior can further be identified according to the charge mode.

Step S903, judge whether charge mode is preset charged mode, when charge mode is preset charged mode, into Enter step S904, conversely, entering step S905.

Step S904, charging current data meets preset condition, determines the behavior for existing in charging process and being changed trains.Its In, preset charged mode is to be configured to two times upper non-conterminous fisrt feature or two times upper non-conterminous second substantially The corresponding mode of the charging current curve of feature, fisrt feature are the first stage in three stage charging system curve, and second feature is Second stage in three stage charging system curve.

Step S905, charging current data does not meet preset condition, determines that there is no the behaviors changed trains in charging process.

It can be seen that charge data of the present embodiment based on electric vehicle, identified in charging process by Random Forest model With the presence or absence of the charging behavior changed trains, user's charging experience is improved.

It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present application constitutes any limit It is fixed.

Example IV

Referring to Figure 12, it is a kind of structural schematic block diagram of charging behavior identification device provided by the embodiments of the present application, it should Device may include:

Charge data obtains module 121, the charge data of the electric vehicle for obtaining charging pile upload, and charge data includes Charging current data；

Judgment module 122, for judging whether charging current data meets preset condition, preset condition is to originate in charging There are the periods that electric current is continuously default value between time and end time, and advance to from the initial time of period The charge data of one predetermined time and finish time from the period are belonging respectively to the charge data of the second predetermined time backward Different charge types；

Identification module 123 is changed trains for when charging current data meets preset condition, determining to exist in charging process Behavior.

In a kind of feasible implementation, above-mentioned judgment module includes:

Curve generation unit, for generating charging current curve according to charging current data；

Conversion unit, for converting charging curve samples pictures for charging current curve；

First charge mode recognition unit, for the neural network mould that the input of charging curve samples pictures is trained in advance Type obtains the corresponding charge mode of charging current curve；

First determination unit is used for when charge mode is preset charged mode, and charging current data meets preset condition, Preset charged mode is to be configured to two times upper non-conterminous fisrt feature or two times upper non-conterminous second spy substantially The corresponding charge mode of the charging current curve of sign, fisrt feature are the first stage in three stage charging system curve, second feature For the second stage in three stage charging system curve；

Second determination unit, for when charge mode is non-default charge mode, charging current data not to meet default Condition.

In a kind of feasible implementation, neural network model be include input layer, the first hidden layer, second hide The neural network based on the sparse coding certainly of stacking of layer, more classification layers and output layer；

Above-mentioned first charge mode recognition unit includes:

Subelement is obtained, for obtaining charging curve samples pictures by input layer；

Fisrt feature extracts subelement, for charging curve samples pictures to be inputted the first hidden layer, so that first hides Layer carries out feature extraction operation to charging curve samples pictures, exports the first current curve feature；

Second feature extracts subelement, for the first current curve feature to be inputted the second hidden layer, so that second hides Layer carries out feature extraction operation to the first current curve feature, exports the second current curve feature, the second current curve feature Precision is higher than the first current curve feature；

First classification subelement, for the second current curve feature to be inputted layers of classifying more, so that mostly classification layer identification the Two current curve features obtain charge mode classification results according to the corresponding relationship of current curve feature and charge mode；

Subelement is exported, is used for charge mode classification results input and output layer, so that output layer exports charge mode.

In a kind of feasible implementation, above-mentioned judgment module includes:

Second charge mode recognition unit is obtained for the Random Forest model that charging current data input is trained in advance To the corresponding charge mode of charging current data；

Third determination unit is used for when charge mode is preset charged mode, and charging current data meets preset condition, Preset charged mode is to be configured to two times upper non-conterminous fisrt feature or two times upper non-conterminous second spy substantially The corresponding mode of the charging current curve of sign, fisrt feature are the first stage in three stage charging system curve, second feature three Second stage in segmentation charging curve；

4th determination unit, for when charge mode is non-default charge mode, charging current data not to meet default Condition.

In a kind of feasible implementation, Random Forest model is the model for including n decision tree, and n is greater than zero Positive integer；

Above-mentioned second charge mode recognition unit includes:

Second classification subelement obtains n classification knot for classifying by n decision tree to charging current data Fruit；

Subelement is chosen, for determining final classification from n classification results as a result, using final classification result as charging Mode, final classification result are the classification results that quantity is more than or equal to n/2 in n classification results.

In a kind of feasible implementation, above-mentioned apparatus further include:

Website voltage judgment module, for according to the charging voltage data in charge data, judging filling where charging pile Whether power station there is the case where website spread of voltage；

Into module, for not occurring the case where website spread of voltage when charging station, into subsequent judgement charging current The step of whether data meet preset condition.

Generation module, for generating prompt information；

Cue module is presented to charge user for will be prompted to information by user terminal, to prompt charge user to charge There is behavior of changing trains in the process.

Embodiment five

Figure 13 is the schematic diagram for the terminal device that one embodiment of the application provides.As shown in figure 13, the terminal of the embodiment Equipment 13 includes: processor 130, memory 131 and is stored in the memory 131 and can be on the processor 130 The computer program 132 of operation.The processor 130 realizes above-mentioned each charging behavior when executing the computer program 132 Step in recognition methods embodiment, such as step S201 to S203 shown in Fig. 2.Alternatively, the processor 130 execute it is described Realize each module or the function of unit in above-mentioned each Installation practice when computer program 132, for example, module 121 shown in Figure 12 to 123 function.

Illustratively, the computer program 132 can be divided into one or more modules or unit, it is one or The multiple modules of person or unit are stored in the memory 131, and are executed by the processor 130, to complete the application. One or more of modules or unit can be the series of computation machine program instruction section that can complete specific function, the instruction Section is for describing implementation procedure of the computer program 132 in the terminal device 13.For example, the computer program 132 can be divided into charge data obtain module, judgment module and identification module, each module concrete function it is as follows:

Charge data obtains module, and the charge data of the electric vehicle for obtaining charging pile upload, charge data includes filling Electric current data；Judgment module, for judging whether charging current data meets preset condition, preset condition is to originate in charging There are the periods that electric current is continuously default value between time and end time, and advance to from the initial time of period The charge data of one predetermined time and finish time from the period are belonging respectively to the charge data of the second predetermined time backward Different charge types；Identification module is changed for when charging current data meets preset condition, determining to exist in charging process The behavior of vehicle.

The terminal device 13 is server.The terminal device may include, but be not limited only to, processor 130, storage Device 131.It will be understood by those skilled in the art that Figure 13 is only the example of terminal device 13, do not constitute to terminal device 13 Restriction, may include perhaps combining certain components or different components, such as institute than illustrating more or fewer components Stating terminal device can also include input-output equipment, network access equipment, bus etc..

Alleged processor 130 can be central processing unit (Central Processing Unit, CPU), can also be Other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field- Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic, Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor Deng.

The memory 131 can be the internal storage unit of the terminal device 13, such as the hard disk of terminal device 13 Or memory.The memory 131 is also possible to the External memory equipment of the terminal device 13, such as on the terminal device 13 The plug-in type hard disk of outfit, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) block, flash card (Flash Card) etc..Further, the memory 131 can also both include the terminal device 13 Internal storage unit also includes External memory equipment.The memory 131 is for storing the computer program and the end Other programs and data needed for end equipment.The memory 131, which can be also used for temporarily storing, have been exported or will The data of output.

It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each function Can unit, module division progress for example, in practical application, can according to need and by above-mentioned function distribution by different Functional unit, module are completed, i.e., the internal structure of described device is divided into different functional unit or module, more than completing The all or part of function of description.Each functional unit in embodiment, module can integrate in one processing unit, can also To be that each unit physically exists alone, can also be integrated in one unit with two or more units, it is above-mentioned integrated Unit both can take the form of hardware realization, can also realize in the form of software functional units.In addition, each function list Member, the specific name of module are also only for convenience of distinguishing each other, the protection scope being not intended to limit this application.Above system The specific work process of middle unit, module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.

In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment The part of load may refer to the associated description of other embodiments.

Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed Scope of the present application.

In embodiment provided herein, it should be understood that disclosed device, terminal device and method, it can be with It realizes by another way.For example, device described above, terminal device embodiment are only schematical, for example, institute The division of module or unit is stated, only a kind of logical function partition, there may be another division manner in actual implementation, such as Multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.Separately A bit, shown or discussed mutual coupling or direct-coupling or communication connection can be through some interfaces, device Or the INDIRECT COUPLING or communication connection of unit, it can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.

It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list Member both can take the form of hardware realization, can also realize in the form of software functional units.

If the integrated module or unit are realized in the form of SFU software functional unit and sell as independent product Or it in use, can store in a computer readable storage medium.Based on this understanding, the application realizes above-mentioned reality The all or part of the process in a method is applied, relevant hardware can also be instructed to complete by computer program, it is described Computer program can be stored in a computer readable storage medium, the computer program when being executed by processor, it can be achieved that The step of above-mentioned each embodiment of the method.Wherein, the computer program includes computer program code, the computer program Code can be source code form, object identification code form, executable file or certain intermediate forms etc..Computer-readable Jie Matter may include: can carry the computer program code any entity or device, recording medium, USB flash disk, mobile hard disk, Magnetic disk, CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that described The content that computer-readable medium includes can carry out increasing appropriate according to the requirement made laws in jurisdiction with patent practice Subtract, such as does not include electric carrier signal and electricity according to legislation and patent practice, computer-readable medium in certain jurisdictions Believe signal.

Embodiment described above is only to illustrate the technical solution of the application, rather than its limitations；Although referring to aforementioned reality Example is applied the application is described in detail, those skilled in the art should understand that: it still can be to aforementioned each Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified Or replacement, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution should all Comprising within the scope of protection of this application.

Claims

1. a kind of charging behavior recognition methods characterized by comprising

Judge whether the charging current data meets preset condition, the preset condition be charge initial time and at the end of Between between there are the periods that electric current is continuously default value, and from the initial time of the period advance to first it is default when The charge data at quarter and finish time from the period are belonging respectively to difference to the charge data of the second predetermined time backward Charge type；

2. charging behavior recognition methods according to claim 1, which is characterized in that the judgement charging current data Whether preset condition is met, comprising:

According to the charging current data, charging current curve is generated；

Charging curve samples pictures are converted by the charging current curve；

By charging curve samples pictures input neural network model trained in advance, it is corresponding to obtain the charging current curve Charge mode；

When the charge mode is preset charged mode, the charging current data meets the preset condition, described default Charge mode is to be configured to two times upper non-conterminous fisrt feature or two times upper non-conterminous second feature substantially The corresponding charge mode of charging current curve, the fisrt feature be three stage charging system curve in first stage, described second Feature is the second stage in three stage charging system curve；

3. charging behavior recognition methods according to claim 2, which is characterized in that the neural network model be include defeated Enter the sparse from the neural network encoded based on stacking of layer, the first hidden layer, the second hidden layer, more classification layers and output layer；

The neural network model that charging curve samples pictures input is trained in advance, obtains the charging current curve Corresponding charge mode, comprising:

The charging curve samples pictures are obtained by the input layer；

The first current curve feature is inputted into second hidden layer, so that second hidden layer is to first electric current Curvilinear characteristic carries out feature extraction operation, exports the second current curve feature, and the precision of the second current curve feature is higher than The first current curve feature；

By the second current curve feature input layers of classifying, so that more classification layers identify that second electric current is bent more Line feature obtains charge mode classification results according to the corresponding relationship of current curve feature and charge mode；

4. charging behavior recognition methods according to claim 1, which is characterized in that the judgement charging current data Whether preset condition is met, comprising:

By charging current data input Random Forest model trained in advance, obtain that the charging current data is corresponding to be filled Power mode；

When the charge mode is preset charged mode, the charging current data meets the preset condition, described default Charge mode is to be configured to two times upper non-conterminous fisrt feature or two times upper non-conterminous second feature substantially The corresponding mode of charging current curve, the fisrt feature are the first stage in three stage charging system curve, the second feature For the second stage in three stage charging system curve；

5. charging behavior recognition methods according to claim 4, which is characterized in that the Random Forest model be include n The model of decision tree, n are the positive integer greater than zero；

The Random Forest model that charge data input is trained in advance, obtains that the charging current data is corresponding to be filled Power mode, comprising:

Determine final classification as a result, using the final classification result as the charge mode, institute from the n classification results Stating final classification result is the classification results that quantity is more than or equal to n/2 in the n classification results.

6. charging behavior recognition methods according to any one of claims 1 to 5, which is characterized in that described in the judgement Whether charging current data meets before preset condition, further includes:

According to the charging voltage data in the charge data, whether the charging station where judging the charging pile there is website electricity Press unstable situation；

When the charging station does not occur the case where website spread of voltage, judge whether the charging current data accords with into subsequent The step of closing preset condition.

7. charging behavior recognition methods according to any one of claims 1 to 5, which is characterized in that in the determining charging After the behavior that presence is changed trains in the process, further includes:

Generate prompt information；

The prompt information is presented to charge user by user terminal, to prompt to exist in the charge user charging process It changes trains behavior.

8. a kind of charging behavior identification device characterized by comprising

Charge data obtains module, and the charge data of the electric vehicle for obtaining charging pile upload, the charge data includes filling Electric current data；

Judgment module, for judging whether the charging current data meets preset condition, the preset condition is to charge Begin between time and end time there are the period that electric current is continuously default value, and past from the initial time of the period The preceding charge data to the first predetermined time and the finish time from the period are backward to the charging number of the second predetermined time According to being belonging respectively to different charge types；

Identification module is changed for when the charging current data meets the preset condition, determining to exist in charging process The behavior of vehicle.

9. a kind of terminal device, which is characterized in that in the memory and can be in institute including memory, processor and storage The computer program run on processor is stated, the processor realizes such as claim 1 to 7 times when executing the computer program The step of one the method.

10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer journey Sequence is realized when the computer program is executed by processor such as the step of any one of claim 1 to 7 the method.