CN111016717B

CN111016717B - Method and device for identifying simultaneous charging of multiple electric vehicles

Info

Publication number: CN111016717B
Application number: CN201911203641.6A
Authority: CN
Inventors: 武雨末
Original assignee: Shenzhen Mengma Electric Technology Co ltd
Current assignee: Shenzhen Mengma Electric Technology Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2021-05-14
Anticipated expiration: 2039-11-29
Also published as: CN111016717A

Abstract

The embodiment of the application discloses a method, a device, terminal equipment and a computer readable storage medium for identifying simultaneous charging of a plurality of electric vehicles, wherein the method comprises the following steps: acquiring charging current data of the electric vehicle uploaded by a charging pile; determining whether the charging current data meets a preset condition; and if the charging current data meet the preset conditions, determining that a behavior of charging the plurality of electric vehicles simultaneously exists in the charging process corresponding to the charging current data. The embodiment of the application can effectively identify the non-standard charging behavior of the simultaneous charging of a plurality of vehicles, reduce the potential safety hazard of the charging process, standardize the charging behavior and improve the safety of the charging process of the electric vehicle.

Description

Method and device for identifying simultaneous charging of multiple electric vehicles

Technical Field

The present application belongs to the field of electric vehicle technology, and in particular, to a method, an apparatus, a terminal device, and a computer-readable storage medium for identifying simultaneous charging of a plurality of electric vehicles.

Background

With the continuous development and progress of society, the application of the electric vehicle is more and more extensive.

In the field of transportation, motorization of vehicles has gradually become a trend. The electric vehicle not only can obviously improve the energy conversion efficiency, but also is beneficial to reducing the emission of greenhouse gases, improving the air quality and reducing the noise pollution. And along with the continuous increase of electric motor car quantity, guarantee electric motor car duration, also more and more for the electric motor car provides the charging station in electric energy and place of charging.

The charging station includes that at least one fills electric pile, and the user can fill the last two-dimensional code of electric pile through the scanning, can use to fill electric pile and charge after paying corresponding expense. Generally, one charging socket corresponds to one electric vehicle. If the charging behavior of the user is not standardized, a situation may occur in which two electric vehicles are charged at one charging socket. At present, no effective method exists for the irregular charging behavior of simultaneously charging a plurality of vehicles, and the manual inspection can only be realized by the staff of the charging station.

Disclosure of Invention

The embodiment of the application provides a method and a device for identifying simultaneous charging of a plurality of electric vehicles, terminal equipment and a computer readable storage medium, so that the non-standard behaviors of the plurality of electric vehicles during simultaneous charging are effectively identified, the potential safety hazard during the charging process is reduced, the charging behavior is standardized, and the safety during the charging process of the electric vehicles is improved.

In a first aspect, an embodiment of the present application provides a method for identifying simultaneous charging of multiple electric vehicles, including:

acquiring charging current data of the electric vehicle uploaded by a charging pile;

determining whether the charging current data meets a preset condition;

and if the charging current data meet the preset conditions, determining that a behavior of simultaneously charging a plurality of electric vehicles exists in the charging process corresponding to the charging current data.

According to the charging method and the charging device, the charging current data uploaded by the charging pile are obtained, and if the charging current data meet the preset conditions, the behavior that a plurality of electric vehicles are charged simultaneously in the charging process corresponding to the charging current data is determined, so that the non-standard charging behavior that the plurality of electric vehicles are charged simultaneously is effectively identified, the potential safety hazard in the charging process is reduced, the charging behavior is standardized, and the safety in the charging process of the electric vehicles is improved.

With reference to the first aspect, in a possible implementation manner, the determining whether the charging current data meets a preset condition includes:

determining whether there is oscillation in the charging current data;

if the charging current data does not have oscillation, detecting whether the charging current data conforms to at least one of the following items: the method comprises the following steps of (1) having no continuous descending section, having a continuous descending section with the length smaller than a preset length, and having a continuous descending section with the descending frequency smaller than a first preset value;

if the charging current data meet at least one item, detecting whether the charging current data meet a first condition, wherein the first condition is that the number of steep dips is equal to a second preset value, the number of steep rises is equal to a third preset value, the starting position of the first steep dip is greater than a preset time point, and the distance between the two steep dips is greater than a first preset length threshold;

and if the charging current data meet the first condition, judging that the charging current data meet the preset condition.

With reference to the first aspect, in a possible implementation manner, the determining whether the charging current data meets a preset condition further includes:

if the charging current data has a continuous descending section, the length of the continuous descending section is greater than or equal to the preset length, and the descending frequency is greater than or equal to the first preset value, whether the charging current data meets a second condition is detected, and the second condition is that the current descending difference of the continuous descending section is greater than a first preset current threshold value, the descending frequency is greater than or equal to the first preset value, and whether the difference value between the current ascending end point and the current descending end point is greater than or equal to a second preset current threshold value;

if the charging current data meets the first condition, detecting whether the last continuous descending section in the charging current data meets the second condition;

and if the last continuous descending section in the charging current data meets the second condition, judging that the charging current data meets the preset condition.

if the last continuous descending section in the charging current data does not meet the second condition, detecting whether the charging current data meets a third condition, wherein the third condition is that at least two continuous descending sections exist, the interval between the continuous descending sections is greater than or equal to a first preset length threshold, the median current of the starting position of the target continuous descending section is greater than a third preset current threshold, the descending times of the target continuous descending section is greater than a fourth preset value, and the current descending difference of the target descending section is greater than the first preset current threshold; wherein the target continuous descending section is a continuous descending section other than the first continuous descending section;

if the charging current data meet the third condition, detecting whether the starting position of the first continuous descending section in the charging current data is smaller than a preset time point or whether the difference value of the median currents of the starting positions of the two continuous descending sections is larger than a fourth preset current threshold value;

and if so, judging that the charging current meets the preset condition.

and if the charging current data has oscillation, the charging current data does not meet the first condition, the charging current data does not meet the second condition, the charging current data does not meet the third condition, or the difference value of the starting position of the first continuous descending section in the charging current data is greater than or equal to the median current of the preset time point and the starting positions of the two continuous descending sections is less than or equal to a fourth preset current threshold value, judging that the charging current data does not meet the preset condition.

With reference to the first aspect, in a possible implementation manner, after determining that a behavior of simultaneously charging a plurality of electric vehicles exists in a charging process corresponding to the charging current data, the method further includes:

generating prompt information and/or suggestion information;

and sending the prompt information and/or the suggestion information to a terminal device of a user of the electric vehicle to instruct the terminal device to present the prompt information and/or the suggestion information to the user of the electric vehicle.

With reference to the first aspect, in a possible implementation manner, before the acquiring charging current data of the electric vehicle, the method further includes:

acquiring charging order data of a user of the electric vehicle;

detecting whether the electric vehicle has been analyzed according to the charging order data;

and if not, entering the step of acquiring the charging current data of the electric vehicle uploaded by the charging pile.

In a second aspect, an embodiment of the present application provides an apparatus for identifying simultaneous charging of a plurality of electric vehicles, including:

the acquisition module is used for acquiring charging current data of the electric vehicle uploaded by the charging pile;

the first determination module is used for determining whether the charging current data meet a preset condition or not;

and the second determining module is used for determining that a behavior of simultaneously charging a plurality of electric vehicles exists in the charging process corresponding to the charging current data if the charging current data meets the preset condition.

In a third aspect, an embodiment of the present application provides a terminal device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor, when executing the computer program, implements the method according to any one of the above first aspects.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the method according to any one of the above first aspects.

In a fifth aspect, embodiments of the present application provide a computer program product, which, when run on a terminal device, causes the terminal device to perform the method of any one of the first aspect.

It is understood that the beneficial effects of the second aspect to the fifth aspect can be referred to the related description of the first aspect, and are not described herein again.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic block diagram of a structure of an electric vehicle charging system provided in an embodiment of the present application;

fig. 2 is a schematic diagram of an "intermediate stepped" charging curve provided in an embodiment of the present application;

FIG. 3 is a graphical illustration of an intermediate stage provided by an embodiment of the present application;

FIG. 4 is a schematic block flow diagram illustrating a method for identifying simultaneous charging of a plurality of electric vehicles according to an embodiment of the present disclosure;

fig. 5 is a schematic specific flowchart of step S402 according to an embodiment of the present application;

FIG. 6 is another schematic block flow diagram of a method for identifying simultaneous charging of multiple vehicles according to an embodiment of the present disclosure;

fig. 7 is a block diagram illustrating a structure of an apparatus for identifying simultaneous charging of a plurality of electric vehicles according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application.

The system architecture according to the embodiments of the present application will be described first.

Referring to fig. 1, a schematic block diagram of a structure of an electric vehicle charging system provided in an embodiment of the present application includes a charging station 11, an electric vehicle 12, a user terminal device 13, and a server 14, where the charging station includes a plurality of charging piles, and each charging pile includes a plurality of charging sockets. Corresponding APP can be installed in the user terminal equipment to realize corresponding functions in the charging process, such as code scanning payment, charging order generation, charging order uploading and the like. The user terminal device may be, but is not limited to, a mobile phone, a smart wearable device, a tablet computer, or the like. The electric vehicle may be any type of electric vehicle, for example, an electric two-wheeled vehicle or an electric four-wheeled vehicle.

The electric vehicle charging process based on the system can comprise the following steps: after a user drives the electric vehicle to arrive at a charging station, scanning the two-dimensional code on the charging pile through a mobile phone to generate a charging order; after the corresponding socket of the charging pile supplies power, a user can connect the electric vehicle to the charging pile through the plug and the power adapter to start charging the electric vehicle; when the charging time reaches the preset charging time, the charging fee reaches the prepayment fee or the electric vehicle is full, the charging plug can be unplugged, and a charging process is completed.

In the charging process of the electric vehicle, the charging pile can record the charging data of the electric vehicle in real time, report the charging data to the charging pile management platform, and store the charging data to the database. The charging data generally includes charging current data, charging voltage data, charging power data, and the like. In addition, the charging order data of the user can be uploaded to the server for storage.

Based on the system architecture of fig. 1, the server may analyze charging data corresponding to a certain charging order of a certain user through the recorded data, and determine whether the charging behavior of the user is normal, for example, whether there is a charging behavior of charging multiple vehicles simultaneously. If the analysis shows that the user has an irregular charging behavior, then the user is prompted through the user terminal so that the user can know the irregular charging behavior in time, the potential safety hazard of the charging process is reduced, and the safety of the charging process is improved.

In this embodiment of the application, the charging current curve of the charging current data that meets the preset condition may be defined as a "middle step" curve, that is, if it is determined that the curve of the charging current data is the "middle step" curve, it may be determined that there is a behavior of charging multiple vehicles at the same time.

Specifically, by analyzing a large amount of charging data and corresponding charging current curves in advance, it is found that if a charging behavior occurs in which a plurality of electric vehicles are charged simultaneously during charging, the second stage of the charging current curve exhibits the same characteristics. In order to express the common characteristics of the charging current curves corresponding to the simultaneous charging of a plurality of electric vehicles, the charging current curve with the common characteristics is defined as an intermediate step type curve. Therefore, whether the charging current curve is an intermediate step type curve or not can be determined by judging whether the charging current curve shows the common characteristics or not, and whether the charging behavior of simultaneously charging a plurality of vehicles exists in the corresponding charging process or not is finally determined.

See fig. 2 for a "middle step" charging profile and fig. 3 for an intermediate stage. As shown in FIG. 2, the horizontal axis represents time, the left vertical axis represents current in the range of 0-2A, and the right vertical axis represents voltage in the range of 0-250V. The figure comprises a charging voltage curve and a charging current curve corresponding to a certain charging order, wherein the charging voltage curve and the charging current curve are always kept near 220V, and the curve which is finally directly reduced to 0 is a charging voltage curve, and the other curve is a charging current curve.

The complete charging process includes a first phase, a second phase, and a third phase. Wherein, the first stage is the steady charging of current and voltage; the second stage is the descending charging with unchanged voltage and reduced current; the third stage is trickle charging in which the voltage is not changed and the current is reduced until the current voltage is zero. Accordingly, the charging current profile includes a first phase, a second phase, and a third phase. In FIG. 2, the range of the first stage is approximately 0 to 100 (t), and the range of the second stage is approximately 100 to 300 (t).

The influence of the simultaneous charging of a plurality of electric vehicles on the first and third phases of the charging curve is small, i.e. for a "middle step" charging curve, the first and third phases are generally unchanged. Based on this, the embodiments of the present application may focus mainly on the second stage without focusing on the first stage and the third stage. Generally, the normal second stage is only one continuous descending stage, that is, one charging order corresponds to one vehicle charging. If there are multiple continuous descending segments in the second stage of the charging current curve, there may be a situation where multiple vehicles are charged simultaneously, i.e. one charging order corresponds to multiple vehicles being charged simultaneously. Fig. 3 is a schematic diagram of a second phase of the charging current curve in fig. 2, which includes 2 successive descending segments 31, and a step-like transition segment (or plateau) 32 between the two successive descending segments.

The related flow of the server side will be described below.

Referring to fig. 4, a schematic block diagram of a flow of a method for identifying simultaneous charging of a plurality of electric vehicles according to an embodiment of the present application, where the method is specifically applied to a server, may include the following steps:

and S401, acquiring charging current data of the electric vehicle uploaded by the charging pile.

It should be noted that the charging current data generally refers to current data of an electric vehicle during a charging process. The primary charging process refers to a process corresponding to one charging order, that is, the charging current data is the charging current data corresponding to one charging order.

In the specific application, the telemetering data uploaded by the corresponding charging pile can be acquired through charging order data of an electric vehicle user, wherein the telemetering data comprises charging current data, charging voltage data, charging power data and the like. The charging order data comprises information such as a unique user identifier, charging start time, charging end time, a charging pile number and the like.

After a user finishes a charging order, the server searches telemetering data reported by a corresponding charging pile from a database according to information such as a user unique identifier, charging start time, charging end time, a charging pile number and the like in the charging order, and then searches charging current data corresponding to the user unique identifier, the charging start time, the charging end time and the like from the telemetering data so as to obtain charging current data corresponding to the user charging order.

And step S402, determining whether the charging current data meets a preset condition.

Step S403, if the charging current data meets the preset condition, determining that a behavior of charging multiple electric vehicles simultaneously exists in the charging process corresponding to the charging current data.

It should be noted that the preset condition may be an "intermediate step" curve, that is, it is determined whether the charging curve of the charging current data is the "intermediate step" curve; the charging current data may also be determined as the charging curve characteristic corresponding to the "intermediate step type" curve, that is, whether the charging current data has the charging curve characteristic corresponding to the "intermediate step type" curve.

In some embodiments, referring to the specific flowchart of step S402 shown in fig. 5, a specific process of determining whether the charging current data satisfies the preset condition may include the following steps:

step S501, determining whether the charging current data has oscillation. If there is no oscillation, the process proceeds to step S502, otherwise, the process proceeds to step S509.

It should be noted that the oscillation means that the current value fluctuates up and down within a certain period of time. In the embodiment of the present application, the oscillation is defined as: the current rises more than 4 times and falls less than 4 times. If the current rise amplitude is larger than 0.49, the current rise is considered to rise once, and if the current fall amplitude is larger than 0.49, the current fall is considered to fall once. Of course, both the rise and fall need to meet certain time characteristics before oscillation can be considered.

Step S502, detecting whether the charging current data conforms to at least one of the following items: the method comprises the following steps of having no continuous descending section, having a continuous descending section with the length smaller than a preset length, and having a continuous descending section with the descending frequency smaller than a first preset value.

If at least one item is met, that is, at least one item is met among no continuous descending segment, continuous descending segments with the length smaller than the preset length, continuous descending segments with the descending times smaller than the first preset value, the process proceeds to step S503.

Otherwise, if the charging current data does not conform to at least one item, that is, if the charging current data has a continuous descending section, the length of the continuous descending section is greater than or equal to the preset length, and the descending number is greater than or equal to the first preset value, step S505 is performed.

It should be noted that the continuous descending section refers to a continuous descending process in which the current is always descending and there is no current ascending stage in between. For example, the intermediate stage in fig. 3 comprises two successive descending segments 31.

The length of the continuous descending segment refers to the time length of the continuous descending segment, namely the duration of the continuous descending segment, and the length of the continuous descending segment can be calculated by the starting time and the ending time of the continuous descending segment. The number of drops refers to the number of drops in current in successive drop segments.

The preset length and the first preset numerical value can be set according to actual needs. For example, the preset length is 20T, T is a charging current data reporting interval period, and T =90 s. The first predetermined value is 3.

Step S503, detecting whether the charging current data meets a first condition, where the first condition is that the number of steep dips is equal to a second preset value, the number of steep rises is equal to a third preset value, the starting position of the first steep drop is greater than a preset time point, and the distance between two steep drops is greater than a first preset length threshold. If the charging current data satisfies the first condition, the process proceeds to step S504. On the contrary, if the charging current data does not satisfy the first condition, the process proceeds to step S509.

It should be noted that steep means that the current is straight up and down, and steep drop means that the current is straight down, that is, the value of the current value decrease at a certain time point is greater than a preset value. Correspondingly, the steep rise means that the current is straight upward, that is, the current value increases by a value greater than a preset value at a certain time point. The increase or decrease is greater than a predetermined value in order to distinguish from a current drop in a continuously falling segment. The distance between two steep dips refers to the length of the time interval between two steep dips.

The steep drop or rise is for the plateau (or transition) in the second phase, i.e. the number of steep drops and the number of steep rises are counted for the current value in the plateau. The stable section is positioned between the two continuous descending sections and divides the two continuous descending sections.

In an embodiment of the present invention, the second predetermined value may be 2, the third predetermined value is 0, and the predetermined time point is 39T. The first preset length threshold is 59T.

And step S504, judging that the charging current data meet the preset conditions.

Step S505, detecting whether the charging current data satisfies a second condition, where the second condition is that a current drop difference of the continuous drop section is greater than a first preset current threshold, a drop frequency is greater than or equal to a first preset value, and a difference between a current rise end point and a current drop end point is greater than or equal to a second preset current threshold. If the charging current data satisfies the second condition, the process proceeds to step S506. If the charging current data does not satisfy the second condition, the process proceeds to step S509.

The current drop difference in the continuous drop section is a difference between a current value at the start point and a current value at the end point of the continuous drop section. The number of drops is the number of drops in current in the sustained drop segment. The first preset value may be, but is not limited to, 3.

The first preset current threshold may be, but is not limited to, 0.49A, and the second preset current threshold may be, but is not limited to, 0.21A.

And step S506, detecting whether the last continuous descending section in the charging current data meets a second condition.

If the last continuous descending segment in the charging current data meets the second condition, or the last continuous descending segment meets the second condition and the descending number is less than the first preset value, the step S504 is returned. If the last continuous descending segment in the charging current data does not satisfy the second condition, or the second last continuous descending segment does not satisfy the second condition and/or the descending number is greater than or equal to the first preset value, the process proceeds to step S507.

It will be appreciated that the second phase of the charging current data comprises a plurality of successive falling segments.

The first preset value may be, but is not limited to, 3.

The reason why step S505 is performed and then step S506 is performed is to prevent step S505 from occurring even when a single vehicle is charged due to an unknown factor. In other words, in some cases, a single vehicle is actually charged, but the current characteristics of charging current data corresponding to charging of the single vehicle when the multiple vehicles are charged due to unknown factors are verified, and the misjudgment can be avoided by verifying the last continuous descending section or the penultimate continuous descending section after verifying whether all the continuous descending sections meet the second condition.

Step S507, detecting whether the charging current data meets a third condition, wherein the third condition is that at least two continuous descending sections exist, the interval between the continuous descending sections is larger than or equal to a first preset length threshold, the median current of the starting position of the target continuous descending section is larger than a third preset current threshold, the descending times of the target continuous descending section is larger than a fourth preset numerical value, and the current descending difference of the target descending section is larger than the first preset current threshold; wherein the target continuous descending section is a continuous descending section other than the first continuous descending section.

If the charging current data satisfies the third condition, the process proceeds to step S508. On the contrary, if the charging current data does not satisfy the third condition, the process proceeds to step S509.

It should be noted that the interval between the successive descending segments can be calculated by the ending point of the previous successive descending segment and the starting point of the next successive descending segment. The above-mentioned target continuous descending section means a continuous descending section other than the first continuous descending section.

The current drop difference is the difference between the current at the start position and the current at the end position of the successive drop segments.

In the embodiment of the present application, the third preset current threshold may be, but is not limited to, 0.79A, and the fourth preset value may be, but is not limited to, 3.

Step S508, detecting whether the starting position of the first continuous descending segment in the charging current data is smaller than a preset time point, or whether the difference value of the median currents at the starting positions of two continuous descending segments is larger than a fourth preset current threshold.

If yes, that is, the starting position of the first continuous descending segment in the charging current data is smaller than the preset time point, or the difference value of the median currents of the starting positions of the two continuous descending segments is larger than the fourth preset current threshold, and the step S504 is returned.

If not, that is, the starting position of the first continuous descending segment in the charging current data is greater than or equal to the preset time point and the difference value of the median currents of the starting positions of the two continuous descending segments is less than or equal to the fourth preset current threshold, the process proceeds to step S509.

It should be noted that two successive descending sections refer to two successive descending sections in chronological order, and the two successive descending sections are generally two adjacent successive descending sections.

In the embodiment of the present application, the preset time point may be, but is not limited to, 10T, and the fourth preset current threshold may be, but is not limited to, 0.79A.

And step S509, judging that the charging current does not meet the preset condition.

It should be noted that, by defining the characteristics of the "middle step type" curve in advance and then directly calculating the charging current data according to the definition, the identification accuracy of the charging curve can be improved.

According to the charging method and the charging device, the charging current data uploaded by the charging pile are obtained, if the charging current data meet the preset conditions, the behavior that a plurality of electric vehicles are charged simultaneously in the charging process corresponding to the charging current data is determined, so that the nonstandard charging behavior that the plurality of vehicles are charged simultaneously is effectively identified, the potential safety hazard of the charging process is reduced, the charging behavior is standardized, and the safety of the charging process of the electric vehicles is improved.

After the behavior that a plurality of vehicles are charged simultaneously is identified, a user can be informed to prompt so as to standardize the charging behavior of the user and improve the charging safety.

Referring to fig. 6, another schematic flow diagram of a method for identifying simultaneous charging of multiple vehicles according to an embodiment of the present application may include:

step S601, charging order data of a user of the electric vehicle are obtained.

Specifically, after a user generates a charging order through a mobile phone or other terminal equipment, the user terminal equipment uploads the charging order to the server. The charging order data comprises but is not limited to information such as a user ID, an order electric quantity, a user mobile phone number, an order duration, an equipment ID of a charging pile, a socket serial number of the charging pile, an order ending reason code, an equipment type of the charging pile, an order starting time, an order ending time, a site ID of the charging pile, a site name of the charging pile, a box delivery number of the charging pile and the like.

Step S602, detecting whether the electric vehicle is analyzed according to the charging order data; if not, the process proceeds to step S603.

Specifically, after receiving the charging order data of the user, the server determines whether the electric vehicle of the user has been subjected to intelligent process charging curve analysis or not based on unique identification information such as a user ID of the charging order data, and if the electric vehicle of the user has been analyzed, generates prompt information according to a previous analysis result, and sends the prompt information to the user terminal device. And if the order is not analyzed, acquiring the charging data corresponding to the order for intelligent analysis.

And S603, acquiring charging current data of the electric vehicle uploaded by the charging pile.

And step S604, determining whether the charging current data meets a preset condition.

Step S605, if the charging current data meet the preset conditions, determining that a behavior of charging a plurality of electric vehicles simultaneously exists in the charging process corresponding to the charging current data.

It should be noted that steps S603 to S605 are the same as steps S401 to S403, and the related description refers to the above corresponding contents, which are not repeated herein.

And step S606, generating prompt information and/or suggestion information.

And step S607, transmitting the prompt information and/or the suggestion information to the terminal equipment of the user of the electric vehicle so as to instruct the terminal equipment to present the prompt information and/or the suggestion information to the user of the electric vehicle.

Specifically, the server may generate a prompt or advice message if it is determined that there is a charging behavior in which multiple vehicles are charged simultaneously. The prompting information is used for prompting a user that a plurality of vehicles are charged simultaneously, and the suggestion information is a countermeasure which can be adopted by the user aiming at the charging behavior. For example, the server generates information including prompt information and advice information, which is specifically "an irregular charging behavior in which you charge a plurality of vehicles at the same time according to the intelligent analysis of the charging curve, and advice you a regular charging behavior", in the current charging process.

It can be understood that, in the prior art, a great part of the safety accidents such as the occurrence of fire in a charging station or the occurrence of spontaneous combustion in the charging process of an electric vehicle are caused by the fact that the charging behavior of an electric vehicle owner is not standardized. According to the embodiment of the application, the charging current data of the electric vehicle reported by the charging pile is intelligently analyzed, whether a charging behavior that a plurality of vehicles are charged simultaneously exists in a user is judged, and if yes, prompt information and/or suggestion information are generated to warn the user, so that the user can timely learn the non-standard charging behavior of the user, potential safety hazards in the charging process of the electric vehicle are reduced or eliminated, and the safety of the charging process of the electric vehicle is improved.

It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Corresponding to the method for identifying simultaneous charging of a plurality of electric vehicles described in the above embodiments, fig. 7 shows a block diagram of an apparatus for identifying simultaneous charging of a plurality of electric vehicles provided in an embodiment of the present application, and for convenience of explanation, only the parts related to the embodiment of the present application are shown.

Referring to fig. 7, the apparatus includes:

the acquisition module 71 is configured to acquire charging current data of the electric vehicle uploaded by the charging pile;

a first determining module 72, configured to determine whether the charging current data satisfies a preset condition;

and the second determining module 73 is configured to determine that a behavior of charging multiple electric vehicles simultaneously exists in a charging process corresponding to the charging current data if the charging current data meets the preset condition.

In a possible implementation manner, the first determining module is specifically configured to:

determining whether the charging current data has oscillation;

if the charging current data has a continuous descending section, the length of the continuous descending section is greater than or equal to a preset length, and the descending frequency is greater than or equal to a first preset value, detecting whether the charging current data meets a second condition, wherein the second condition is that the current descending difference of the continuous descending section is greater than a first preset current threshold value, the descending frequency is greater than or equal to the first preset value, and whether the difference value between the current ascending end point and the current descending end point is greater than or equal to a second preset current threshold value;

if the charging current data meets the first condition, detecting whether the last continuous descending section in the charging current data meets a second condition;

In a possible implementation manner, the first determining module is further specifically configured to:

if the last continuous descending section in the charging current data does not meet the second condition, detecting whether the charging current data meets a third condition, wherein the third condition is that at least two continuous descending sections exist, the interval between the continuous descending sections is greater than or equal to a first preset length threshold, the median current of the starting position of the target continuous descending section is greater than a third preset current threshold, the descending times of the target continuous descending section is greater than a fourth preset value, and the current descending difference of the target descending section is greater than the first preset current threshold; wherein the target continuous descending section is a continuous descending section except for the first continuous descending section;

if the charging current data meet a third condition, detecting whether the starting position of a first continuous descending section in the charging current data is smaller than a preset time point or whether the difference value of median currents of the starting positions of two continuous descending sections is larger than a fourth preset current threshold value;

and if so, judging that the charging current meets the preset condition.

and if the charging current data has oscillation, the charging current data does not meet the first condition, the charging current data does not meet the second condition, the charging current data does not meet the third condition, or the starting position of the first continuous descending section in the charging current data is greater than or equal to the preset time point and the difference value of the median currents of the starting positions of the two continuous descending sections is less than or equal to the fourth preset current threshold value, judging that the charging current data does not meet the preset condition.

In a possible implementation manner, the apparatus may further include:

the generating module is used for generating prompt information and/or suggestion information;

and the prompting module is used for sending the prompting information and/or the suggestion information to the terminal equipment of the user of the electric vehicle so as to instruct the terminal equipment to present the prompting information and/or the suggestion information to the user of the electric vehicle.

In a possible implementation manner, the apparatus may further include:

the system comprises a booking acquisition module, a charging order acquisition module and a charging order processing module, wherein the booking acquisition module is used for acquiring charging order data of a user of the electric vehicle;

the detection module is used for detecting whether the electric vehicle is analyzed or not according to the charging order data; and if not, the step of acquiring the charging current data of the electric vehicle uploaded by the charging pile is carried out.

The device for identifying the simultaneous charging of the plurality of electric vehicles has the function of realizing the method for identifying the simultaneous charging of the plurality of electric vehicles, the function can be realized by hardware, and can also be realized by hardware executing corresponding software, the hardware or the software comprises one or more modules corresponding to the function, and the modules can be software and/or hardware.

It should be noted that, for the information interaction, execution process, and other contents between the above-mentioned devices/modules, the specific functions and technical effects thereof are based on the same concept as those of the embodiment of the method of the present application, and reference may be made to the part of the embodiment of the method specifically, and details are not described here.

Fig. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application. As shown in fig. 8, the terminal device 8 of this embodiment includes: at least one processor 80, a memory 81, and a computer program 82 stored in the memory 81 and executable on the at least one processor 80, the processor 80 implementing the steps in any of the various method embodiments described above when executing the computer program 82.

The terminal device 8 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device may include, but is not limited to, a processor 80, a memory 81. Those skilled in the art will appreciate that fig. 8 is merely an example of the terminal device 8, and does not constitute a limitation of the terminal device 8, and may include more or less components than those shown, or combine some components, or different components, such as an input-output device, a network access device, and the like.

The Processor 80 may be a Central Processing Unit (CPU), and the Processor 80 may be other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 81 may in some embodiments be an internal storage unit of the terminal device 8, such as a hard disk or a memory of the terminal device 8. In other embodiments, the memory 81 may also be an external storage device of the terminal device 8, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the terminal device 8. Further, the memory 81 may also include both an internal storage unit and an external storage device of the terminal device 8. The memory 81 is used for storing an operating system, an application program, a BootLoader (BootLoader), data, and other programs, such as program codes of the computer program. The memory 81 may also be used to temporarily store data that has been output or is to be output.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

The embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements the steps in the above-mentioned method embodiments.

The embodiments of the present application provide a computer program product, which when running on a terminal device, enables the terminal device to implement the steps in the above method embodiments when executed.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the processes in the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium and can implement the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include at least: any entity or device capable of carrying computer program code to a photographing apparatus/terminal apparatus, a recording medium, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), an electrical carrier signal, a telecommunications signal, and a software distribution medium. Such as a usb-disk, a removable hard disk, a magnetic or optical disk, etc. In certain jurisdictions, computer-readable media may not be an electrical carrier signal or a telecommunications signal in accordance with legislative and patent practice.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims

1. A method of identifying simultaneous charging of a plurality of electric vehicles, comprising:

determining whether the charging current data meets a preset condition;

if the charging current data meet the preset conditions, determining that a behavior of charging a plurality of electric vehicles simultaneously exists in the charging process corresponding to the charging current data;

wherein determining whether the charging current data satisfies a preset condition includes:

determining whether there is oscillation in the charging current data;

2. The method of claim 1, wherein determining whether the charging current data satisfies a preset condition further comprises:

if the charging current data meets the second condition, detecting whether the last continuous descending section in the charging current data meets the second condition;

3. The method of claim 2, wherein determining whether the charging current data satisfies a preset condition further comprises:

and if so, judging that the charging current meets the preset condition.

4. The method of claim 3, wherein determining whether the charging current data satisfies a preset condition further comprises:

5. The method of any of claims 1 to 4, wherein after determining that there is a simultaneous charging behavior of a plurality of electric vehicles during the charging process corresponding to the charging current data, further comprising:

generating prompt information and/or suggestion information;

6. The method of claim 5, prior to said obtaining charging current data for the electric vehicle, further comprising:

acquiring charging order data of a user of the electric vehicle;

7. An apparatus for identifying simultaneous charging of a plurality of electric vehicles, comprising:

the second determining module is used for determining that a behavior of charging a plurality of electric vehicles simultaneously exists in the charging process corresponding to the charging current data if the charging current data meets the preset condition;

the first determining module is specifically configured to:

determining whether there is oscillation in the charging current data;

and if the charging current data meet a first condition, judging that the charging current data meet a preset condition.

8. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the method according to any of claims 1 to 6 when executing the computer program.

9. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 6.