Electric energy metering method and system applied to charging station

Abstract

The present invention provides an electric energy metering method and system applied to a charging station, which belongs to the field of data processing technology and is used to determine a corresponding charging strategy according to actual conditions to meet actual needs. The charging station is controlled by an electronic device, and the method includes: for M charged objects that are charged in the charging station within a preset time, the electronic device determines the electric energy metering curves of the M charged objects in the charging station, M is an integer greater than 2, i is an integer traversing from 1 to M, and for the i-th charged object among the M charged objects, the electric energy metering curve of the i-th charged object is used to describe the metering relationship between the electric energy and time of the i-th charged object during charging in the electric energy metering coordinate system; the electronic device determines multiple charging strategies of the charging station according to the electric energy metering curves of the M charged objects, and the charging efficiency of any two of the multiple charging strategies is different.

Description

Technical Field

[0001] The present invention relates to the technical field of data processing, and in particular to an electric energy metering method and system applied to a charging station. Background Art

[0002] With the global emphasis on environmental protection and sustainable development, new energy technology has become the focus of research and development in various countries. Among them, charging pile technology, as an important part of the new energy field, has attracted much attention. Charging piles are mainly used to charge various new energy equipment such as electric vehicles and electric bicycles, and are one of the key facilities for realizing the utilization of new energy.

[0003] At present, charging pile technology has realized a variety of charging modes, including fast charging and slow charging. The fast charging mode can charge a large amount of power to the device in a short time, greatly shortening the charging time of the device and improving the charging efficiency. The slow charging mode can slowly charge the device over a longer period of time, which is conducive to protecting the battery life of the device and extending the service life of the battery. The core function of charging pile technology is to provide power for electric vehicles or other new energy devices. These devices usually use lithium-ion batteries or other types of batteries and need to be charged regularly to keep running. Charging piles are usually installed in public places such as shopping malls, parks, office buildings, etc., and can also be installed at home. One of the main challenges of charging pile technology is how to improve charging efficiency. Fast charging can charge a large amount of power to the device in a short time, but it may damage the battery. Therefore, researchers are looking for a balance so that battery life can be protected while charging quickly. Summary of the invention

[0004] The embodiments of the present invention provide an electric energy metering method and system applied to a charging station, so as to determine a corresponding charging strategy according to actual conditions to meet actual needs.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme:

[0006] In a first aspect, a method for electric energy metering applied to a charging station is provided, which is applied to an electronic device, wherein the charging station is controlled by the electronic device, and the method comprises: for M charged objects charged in the charging station within a preset time, the electronic device determines respective electric energy metering curves of the M charged objects in the charging station, where M is an integer greater than 2, and i is an integer traversing from 1 to M, and for the i-th charged object among the M charged objects, the electric energy metering curve of the i-th charged object is used to describe the metering relationship between electric energy and time of the i-th charged object during charging in an electric energy metering coordinate system; the electronic device determines multiple charging strategies of the charging station according to the respective electric energy metering curves of the M charged objects, and the charging efficiency of any two of the multiple charging strategies is different.

[0007] Optionally, the electronic device determines the power metering curves of the M charged objects in the charging station, including: for the ith charged object, the electronic device obtains the power metering curve of the ith charged object from the charging pile that charges the ith charged object in the charging station.

[0008] Optionally, the electronic device obtains the electric energy metering curve of the i-th charged object from the charging pile that charges the i-th charged object in the charging station, including: within a preset time, the electronic device receives charging indication information sent by the charging pile, the charging indication information is used to indicate that the charging pile is currently charging the i-th charged object; the electronic device sends electric energy metering indication information to the charging pile according to the charging indication information, the electric energy metering indication information is used to instruct the charging pile to record the electric energy metering curve of the i-th charged object; when the charging of the i-th charged object is completed, the electronic device receives the electric energy metering curve of the i-th charged object returned by the charging pile according to the electric energy metering indication information.

[0009] Optionally, the electronic device determines multiple charging strategies of the charging station according to the respective electric energy metering curves of the M charged objects, including: for the ith charged object, the electronic device determines the metering change feature point from the electric energy metering curve of the ith charged object to obtain a metering change feature point set of the ith charged object, the metering change feature point set of the ith charged object includes Ki metering change feature points, Ki is an integer greater than or equal to 0, and when i traverses from 1 to M, a total of M metering change feature point sets are obtained; the electronic device determines the multiple charging strategies of the charging station according to the M metering change feature point sets.

[0010] Optionally, the electronic device determines a metering change characteristic point from the electric energy metering curve of the i-th charged object to obtain a metering change characteristic point set of the i-th charged object, including: the electronic device determines whether there is at least one curve segment in the electric energy metering curve of the i-th charged object whose slope change value exceeds the change threshold; if there is at least one curve segment in the electric energy metering curve of the i-th charged object whose slope change value exceeds the change threshold, the electronic device determines a point on the at least one curve segment corresponding to an intermediate value of the slope change value, and determines at least one point in total, and the at least one point constitutes the metering change characteristic point set of the i-th charged object.

[0011] Optionally, the multiple charging strategies of the charging station include a first charging strategy of the charging station, and the electronic device determines the multiple charging strategies of the charging station according to the M metering change feature point sets, including: the electronic device determines a first metering change feature point from the M metering change feature point sets, the first metering change feature point being the metering change feature point with the earliest time and the smallest electric energy in the electric energy metering coordinate system; the electronic device determines a second metering change feature point from the M metering change feature point sets according to the position of the first metering change feature point in the electric energy metering coordinate system;

[0012] Among them: the time of the first metering change characteristic point in the electric energy metering coordinate system is t1, if the first target metering change characteristic point does not exist in the set of M metering change characteristic points, then the second metering change characteristic point is the second target metering change characteristic point; if the first target metering change characteristic point exists in the set of M metering change characteristic points, then the second metering change characteristic point is the first target metering change characteristic point; if there are multiple first target metering change characteristic points in the set of M metering change characteristic points, then the second metering change characteristic point is the metering change characteristic point with the largest difference in electric energy between the multiple first target metering change characteristic points and the first metering change characteristic point; wherein the first target metering change characteristic point is the time within the preset time length t1+Δt1 after t1 , and the metering change feature point with electric energy greater than that of the first metering change feature point, the second target metering change feature point is a metering change feature point in the set of M metering change feature points with electric energy greater than that of the first metering change feature point, and with the smallest time interval with the first metering change feature point; and so on, until the xth metering change feature point in the set of M metering change feature points, x is an integer greater than 2, if there is no metering change feature point in the set of M metering change feature points with electric energy greater than that of the xth metering change feature point, then the electronic device determines to end the traversal, and a total of x metering change feature points are determined; the electronic device fits the x metering change feature points according to their respective positions in the electric energy metering coordinate system, and obtains the first charging strategy of the charging station.

[0013] Optionally, the multiple charging strategies of the charging station include a second charging strategy of the charging station, and the electronic device determines the multiple charging strategies of the charging station according to the M metering change feature point sets, including: the electronic device determines the first metering change feature point from the M metering change feature point sets, and the first metering change feature point is the metering change feature point with the earliest time and the smallest electric energy in the electric energy metering coordinate system; the electronic device determines the second metering change feature point from the M metering change feature point set according to the position of the first metering change feature point in the electric energy metering coordinate system; wherein: the time of the first metering change feature point in the electric energy metering coordinate system is t1, if the first target metering change feature point does not exist in the M metering change feature point set, then the second metering change feature point is the second target metering change feature point; if the first target metering change feature point exists in the M metering change feature point set, then the second metering change feature point is the first target metering change feature point; if there are multiple first target metering change feature points in the M metering change feature point set, then the The two metering change feature points are the metering change feature points whose electric energy difference with the first metering change feature point is the largest among the multiple first target metering change feature points; wherein, the first target metering change feature point is a metering change feature point whose time is within the preset time length t1+Δt2 after t1 and whose electric energy is greater than that of the first metering change feature point, and the second target metering change feature point is a metering change feature point whose electric energy is greater than that of the first metering change feature point in the set of M metering change feature points and whose time interval with the first metering change feature point is the smallest; and so on, until the xth metering change feature point in the set of M metering change feature points, x is an integer greater than 2, if there is no metering change feature point whose electric energy is greater than that of the xth metering change feature point in the set of M metering change feature points, then the electronic device determines to end the traversal and determines a total of x metering change feature points; the electronic device fits the x metering change feature points according to their respective positions in the electric energy metering coordinate system to obtain the second charging strategy of the charging station.

[0014] Optionally, the multiple charging strategies of the charging station include a third charging strategy of the charging station, and the electronic device determines the multiple charging strategies of the charging station according to the M metering change feature point sets, including: the electronic device determines the first metering change feature point from the M metering change feature point sets, and the first metering change feature point is the metering change feature point with the earliest time and the smallest electric energy in the electric energy metering coordinate system; the electronic device determines the second metering change feature point from the M metering change feature point set according to the position of the first metering change feature point in the electric energy metering coordinate system; wherein: the time of the first metering change feature point in the electric energy metering coordinate system is t1, if the first target metering change feature point does not exist in the M metering change feature point set, then the second metering change feature point is the second target metering change feature point; if the first target metering change feature point exists in the M metering change feature point set, then the second metering change feature point is the first target metering change feature point; if there are multiple first target metering change feature points in the M metering change feature point set, then the The two metering change feature points are the metering change feature points whose electric energy difference with the first metering change feature point is the largest among the multiple first target metering change feature points; wherein, the first target metering change feature point is a metering change feature point whose time is within the preset time length t1+Δt3 after starting from t1 and whose electric energy is greater than that of the first metering change feature point, and the second target metering change feature point is a metering change feature point whose electric energy is greater than that of the first metering change feature point in the set of M metering change feature points and whose time interval with the first metering change feature point is the smallest; and so on, until the xth metering change feature point in the set of M metering change feature points, x is an integer greater than 2, if there is no metering change feature point in the set of M metering change feature points whose electric energy is greater than that of the xth metering change feature point, then the electronic device determines to end the traversal and determines a total of x metering change feature points; the electronic device fits the x metering change feature points according to their respective positions in the electric energy metering coordinate system to obtain the third charging strategy of the charging station.

[0015] Optionally, Δt1 is smaller than Δt2, and Δt is smaller than Δt3.

[0016] In a second aspect, an electric energy metering system for a charging station is provided, the system comprising an electronic device, the system being configured as follows: for M charged objects charged in the charging station within a preset time, the electronic device determines respective electric energy metering curves of the M charged objects in the charging station, M being an integer greater than 2, i being any integer from 1 to M, for the i-th charged object among the M charged objects, the electric energy metering curve of the i-th charged object is used to describe the metering relationship between electric energy and time of the i-th charged object during charging in an electric energy metering coordinate system; the electronic device determines a plurality of charging strategies of the charging station according to the respective electric energy metering curves of the M charged objects, the charging efficiency of any two of the plurality of charging strategies being different.

[0017] Optionally, the electronic device determines the power metering curves of the M charged objects in the charging station, including: for the ith charged object, the electronic device obtains the power metering curve of the ith charged object from the charging pile that charges the ith charged object in the charging station.

[0018] Optionally, the electronic device obtains the electric energy metering curve of the i-th charged object from the charging pile that charges the i-th charged object in the charging station, including: within a preset time, the electronic device receives charging indication information sent by the charging pile, the charging indication information is used to indicate that the charging pile is currently charging the i-th charged object; the electronic device sends electric energy metering indication information to the charging pile according to the charging indication information, the electric energy metering indication information is used to instruct the charging pile to record the electric energy metering curve of the i-th charged object; when the charging of the i-th charged object is completed, the electronic device receives the electric energy metering curve of the i-th charged object returned by the charging pile according to the electric energy metering indication information.

[0019] Optionally, the electronic device determines multiple charging strategies of the charging station according to the respective electric energy metering curves of the M charged objects, including: for the ith charged object, the electronic device determines the metering change feature point from the electric energy metering curve of the ith charged object to obtain a metering change feature point set of the ith charged object, the metering change feature point set of the ith charged object includes Ki metering change feature points, Ki is an integer greater than or equal to 0, and when i traverses from 1 to M, a total of M metering change feature point sets are obtained; the electronic device determines the multiple charging strategies of the charging station according to the M metering change feature point sets.

[0020] Optionally, the electronic device determines a metering change characteristic point from the electric energy metering curve of the i-th charged object to obtain a metering change characteristic point set of the i-th charged object, including: the electronic device determines whether there is at least one curve segment in the electric energy metering curve of the i-th charged object whose slope change value exceeds the change threshold; if there is at least one curve segment in the electric energy metering curve of the i-th charged object whose slope change value exceeds the change threshold, the electronic device determines a point on the at least one curve segment corresponding to an intermediate value of the slope change value, and determines at least one point in total, and the at least one point constitutes the metering change characteristic point set of the i-th charged object.

[0021] Optionally, the multiple charging strategies of the charging station include a first charging strategy of the charging station, and the electronic device determines the multiple charging strategies of the charging station according to the M metering change feature point sets, including: the electronic device determines the first metering change feature point from the M metering change feature point sets, and the first metering change feature point is the metering change feature point with the earliest time and the smallest electric energy in the electric energy metering coordinate system; the electronic device determines the second metering change feature point from the M metering change feature point set according to the position of the first metering change feature point in the electric energy metering coordinate system; wherein: the time of the first metering change feature point in the electric energy metering coordinate system is t1, if there is no time in the M metering change feature point set that is located after t1 If the metering change feature point is within the preset time length t1+Δt1 and the electric energy is greater than the first metering change feature point, then the second metering change feature point is a metering change feature point in the set of M metering change feature points whose electric energy is greater than the first metering change feature point and whose time interval with the first metering change feature point is the smallest. If there is a metering change feature point #1 in the set of M metering change feature points whose time is within the preset time length t1+Δt1 and the electric energy is greater than the first metering change feature point, then the second metering change feature point is a metering change feature point #1. If there are multiple metering change feature points in the set of M metering change feature points whose time is within the preset time length t1+Δt1 and the electric energy is greater than the first metering change feature point, The second metering change feature point is the metering change feature point #1 whose electric energy difference with the first metering change feature point is the largest among the multiple metering change feature points #1; the electronic device determines the third metering change feature point from the set of M metering change feature points according to the position of the second metering change feature point in the electric energy metering coordinate system; wherein: the time of the second metering change feature point in the electric energy metering coordinate system is t2, if there is no metering change feature point in the set of M metering change feature points whose time is within the preset time length t2+Δt1 after t2, and whose electric energy is greater than that of the second metering change feature point, then the third metering change feature point is the metering change feature point whose electric energy is greater than that of the first metering change feature point in the set of M metering change feature points. The second metering change feature point is larger than the second metering change feature point and has the smallest time interval with the second metering change feature point. If there is a metering change feature point #2 in the set of M metering change feature points whose time is within the preset time length t2+Δt1 and whose electric energy is larger than the second metering change feature point, then the third metering change feature point is a metering change feature point #2. If there are multiple metering change feature points #2 in the set of M metering change feature points whose time is within the preset time length t1+Δt1 and whose electric energy is larger than the second metering change feature point, then the third metering change feature point is the metering change feature point #2 whose electric energy difference with the second metering change feature point is the largest among the multiple metering change feature points #2.And so on, until the xth metering change feature point in the set of M metering change feature points, x is an integer greater than 2, if there is no metering change feature point in the set of M metering change feature points whose electric energy is greater than the xth metering change feature point, then the electronic device determines to end the traversal, and a total of x metering change feature points are determined; the electronic device fits the x metering change feature points according to their respective positions in the electric energy metering coordinate system, and obtains the first charging strategy of the charging station. ;

[0022] Optionally, the multiple charging strategies of the charging station include a second charging strategy of the charging station, and the electronic device determines the multiple charging strategies of the charging station according to the M metering change feature point sets, including: the electronic device determines the first metering change feature point from the M metering change feature point sets, and the first metering change feature point is the metering change feature point with the earliest time and the smallest electric energy in the electric energy metering coordinate system; the electronic device determines the second metering change feature point from the M metering change feature point set according to the position of the first metering change feature point in the electric energy metering coordinate system; wherein: the time of the first metering change feature point in the electric energy metering coordinate system is t1, if there is no time in the M metering change feature point set that is located after t1 If the metering change feature point is within the preset time length t1+Δt2 and the electric energy is greater than the first metering change feature point, then the second metering change feature point is a metering change feature point in the set of M metering change feature points whose electric energy is greater than the first metering change feature point and whose time interval with the first metering change feature point is the smallest. If there is a metering change feature point #1 in the set of M metering change feature points whose time is within the preset time length t1+Δt2 and the electric energy is greater than the first metering change feature point, then the second metering change feature point is a metering change feature point #1. If there are multiple metering change feature points in the set of M metering change feature points whose time is within the preset time length t1+Δt2 and the electric energy is greater than the first metering change feature point, The second metering change feature point is the metering change feature point #1 whose electric energy difference with the first metering change feature point is the second largest among the multiple metering change feature points #1; the electronic device determines the third metering change feature point from the set of M metering change feature points according to the position of the second metering change feature point in the electric energy metering coordinate system; wherein: the time of the second metering change feature point in the electric energy metering coordinate system is t2, if there is no metering change feature point in the set of M metering change feature points whose time is within the preset time length t2+Δt2 after t2, and whose electric energy is larger than that of the second metering change feature point, then the third metering change feature point is the metering change feature point whose electric energy is larger than that of the first metering change feature point in the set of M metering change feature points. The second metering change feature point is larger than the second metering change feature point and has the smallest time interval with the second metering change feature point. If there is a metering change feature point #2 in the set of M metering change feature points whose time is within the preset time length t2+Δt2 and whose electric energy is larger than the second metering change feature point, then the third metering change feature point is a metering change feature point #2. If there are multiple metering change feature points #2 in the set of M metering change feature points whose time is within the preset time length t1+Δt2 and whose electric energy is larger than the second metering change feature point, then the third metering change feature point is the metering change feature point #2 with the second largest electric energy difference between the multiple metering change feature points #2 and the second metering change feature point.And so on, until the xth metering change feature point in the set of M metering change feature points, x is an integer greater than 2, if there is no metering change feature point in the set of M metering change feature points whose electric energy is greater than the xth metering change feature point, then the electronic device determines to end the traversal, and a total of x metering change feature points are determined; the electronic device fits the x metering change feature points according to their respective positions in the electric energy metering coordinate system, and obtains the second charging strategy of the charging station. ;

[0023] Optionally, the multiple charging strategies of the charging station include a third charging strategy of the charging station, and the electronic device determines the multiple charging strategies of the charging station according to the M metering change feature point sets, including: the electronic device determines the first metering change feature point from the M metering change feature point sets, and the first metering change feature point is the metering change feature point with the earliest time and the smallest electric energy in the electric energy metering coordinate system; the electronic device determines the second metering change feature point from the M metering change feature point set according to the position of the first metering change feature point in the electric energy metering coordinate system; wherein: the time of the first metering change feature point in the electric energy metering coordinate system is t1, if there is no time in the M metering change feature point set that is located after t1 If the metering change feature point is within the preset time length t1+Δt3 and the electric energy is greater than the first metering change feature point, then the second metering change feature point is a metering change feature point in the set of M metering change feature points whose electric energy is greater than the first metering change feature point and whose time interval with the first metering change feature point is the smallest. If there is a metering change feature point #1 in the set of M metering change feature points whose time is within the preset time length t1+Δt3 and the electric energy is greater than the first metering change feature point, then the second metering change feature point is a metering change feature point #1. If there are multiple metering change feature points in the set of M metering change feature points whose time is within the preset time length t1+Δt3 and the electric energy is greater than the first metering change feature point, The second metering change feature point is the metering change feature point #1 whose electric energy difference with the first metering change feature point is the smallest among the multiple metering change feature points #1; the electronic device determines the third metering change feature point from the set of M metering change feature points according to the position of the second metering change feature point in the electric energy metering coordinate system; wherein: the time of the second metering change feature point in the electric energy metering coordinate system is t2, if there is no metering change feature point in the set of M metering change feature points whose time is within the preset time length t2+Δt3 after t2, and whose electric energy is greater than that of the second metering change feature point, then the third metering change feature point is the metering change feature point in the set of M metering change feature points whose electric energy is greater than that of the first metering change feature point. The second metering change feature point is larger than the second metering change feature point and has the smallest time interval with the second metering change feature point. If there is a metering change feature point #2 in the set of M metering change feature points whose time is within the preset time length t2+Δt3 and whose electric energy is larger than the second metering change feature point, then the third metering change feature point is a metering change feature point #2. If there are multiple metering change feature points #2 in the set of M metering change feature points whose time is within the preset time length t1+Δt3 and whose electric energy is larger than the second metering change feature point, then the third metering change feature point is the metering change feature point #2 with the smallest electric energy difference between the electric energy of the multiple metering change feature points #2 and the electric energy of the second metering change feature point.And so on, until the xth metering change feature point in the set of M metering change feature points, x is an integer greater than 2, if there is no metering change feature point in the set of M metering change feature points whose electric energy is greater than the xth metering change feature point, then the electronic device determines to end the traversal, and a total of x metering change feature points are determined; the electronic device fits the x metering change feature points according to their respective positions in the electric energy metering coordinate system, and obtains the third charging strategy of the charging station. ;

[0024] Optionally, Δt1 is smaller than Δt2, and Δt is smaller than Δt3.

[0025] In a third aspect, an electronic device is provided, comprising: a processor and a memory; the memory is used to store a computer program, and when the processor executes the computer program, the electronic device executes the method described in the first aspect.

[0026] In a possible design solution, the electronic device described in the third aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be used for the electronic device described in the third aspect to communicate with other electronic devices.

[0027] In an embodiment of the present invention, the electronic device described in the third aspect may be a terminal, or a chip (system) or other parts or components that may be arranged in the terminal, or a system including the terminal.

[0028] In a fourth aspect, a computer-readable storage medium is provided, comprising: a computer program or instructions; when the computer program or instructions are executed on a computer, the computer is caused to execute the method described in the first aspect.

[0029] In summary, the above method and system have the following technical effects:

[0030] By collecting the respective power metering curves of M charged objects that are charged in a charging station within a preset time, the electronic device can determine multiple charging strategies of the charging station according to the respective power metering curves of the M charged objects, so that the multiple charging strategies of the charging station can be matched with the actual charging conditions of the charged objects, that is, the corresponding charging strategy is determined according to the actual situation to meet the actual needs, such as selecting a suitable charging strategy from multiple charging strategies according to the actual device situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the architecture of an electric energy metering system applied to a charging station provided by an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of a flow chart of an electric energy metering method applied to a charging station provided by an embodiment of the present invention;

[0033] Figures 3 to 6 An application scenario diagram of the electric energy metering method applied to a charging station provided by an embodiment of the present invention;

[0034] Figure 7 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described below in conjunction with the accompanying drawings.

[0036] In the embodiment of the present invention, "indication" may include direct indication and indirect indication, and may also include explicit indication and implicit indication. The information indicated by a certain information is called information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association relationship between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved by means of the arrangement order of each information agreed in advance (for example, specified by the protocol), thereby reducing the indication overhead to a certain extent. At the same time, the common parts of each information can also be identified and indicated uniformly to reduce the indication overhead caused by indicating the same information separately.

[0037] In addition, the specific indication method may also be various existing indication methods, such as but not limited to the above-mentioned indication methods and various combinations thereof. The specific details of the various indication methods can refer to the prior art and will not be repeated herein. As can be seen from the above, for example, when it is necessary to indicate multiple information of the same type, different indication methods may be used for different information. In the specific implementation process, the desired indication method can be selected according to specific needs. The embodiment of the present invention does not limit the selected indication method. In this way, the indication method involved in the embodiment of the present invention should be understood to cover various methods that can enable the party to be indicated to obtain the information to be indicated.

[0038] It should be understood that the information to be indicated can be sent as a whole or divided into multiple sub-information and sent separately, and the sending period and / or sending time of these sub-information can be the same or different. The specific sending method is not limited in the embodiment of the present invention. Among them, the sending period and / or sending time of these sub-information can be pre-defined, for example, pre-defined according to a protocol, or can be configured by the sending end device by sending configuration information to the receiving end device.

[0039] "Pre-definition" or "pre-configuration" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in the device, and the embodiments of the present invention do not limit the specific implementation method. Among them, "saving" can mean saving in one or more memories. The one or more memories can be set separately or integrated in an encoder or decoder, a processor, or an electronic device. The one or more memories can also be partially set separately and partially integrated in a decoder, a processor, or an electronic device. The type of memory can be any form of storage medium, which is not limited by the embodiments of the present invention.

[0040] The "protocol" involved in the embodiments of the present invention may refer to a protocol family in the communication field, a standard protocol with a similar protocol family frame structure, or a related protocol applied in future systems, and the embodiments of the present invention do not specifically limit this.

[0041] In the embodiments of the present invention, descriptions such as "when...", "in the case of...", "if" and "if" all mean that the device will perform corresponding processing under certain objective circumstances, but do not limit the time, nor do they require the device to perform judgment actions when implementing, nor do they mean the existence of other limitations.

[0042] In the description of the embodiments of the present invention, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship, for example, A / B can represent A or B; "and / or" in the embodiments of the present invention is only a kind of association relationship describing the associated objects, indicating that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In addition, in the description of the embodiments of the present invention, unless otherwise specified, "multiple" refers to two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple. In addition, in order to facilitate the clear description of the technical solution of the embodiments of the present invention, in the embodiments of the present invention, the words "first" and "second" are used to distinguish the same or similar items with basically the same functions and effects. Those skilled in the art will appreciate that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit the difference. At the same time, in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way for easy understanding.

[0043] The network architecture and business scenarios described in the embodiments of the present invention are intended to more clearly illustrate the technical solutions of the embodiments of the present invention, and do not constitute a limitation on the technical solutions provided by the embodiments of the present invention. A person of ordinary skill in the art can appreciate that with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present invention are equally applicable to similar technical problems.

[0044] To facilitate understanding of the embodiments of the present invention, first Figure 1 Taking the electric energy metering system applied to the charging station as an example, Figure 1 A schematic diagram of the architecture of an electric energy metering system applied to a charging station applicable to the electric energy metering method applied to a charging station provided in an embodiment of the present invention.

[0045] like Figure 1 As shown, the electric energy metering system applied to the charging station may include: electronic equipment and a charging pile.

[0046] The electronic device can be a terminal, and specifically can also be user equipment (UE), access terminal, subscriber unit, user station, mobile station (MS), mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal in the embodiments of the present application can be a mobile phone, a cellular phone, a smartphone, a tablet computer, a wireless data card, a personal digital assistant (PDA), a wireless modem, a handset, a laptop computer, a machine type communication (MTC) terminal, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a vehicle-mounted terminal, a road side unit (RSU) with terminal function, etc. The terminal of the present application may also be a vehicle-mounted module, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit built into a vehicle as one or more components or units. Alternatively, the terminal may also be customer-premises equipment (CPE).

[0047] The charging pile can be any type of charging pile, and there is no restriction on the specific device model. The charging pile can establish a communication connection with the electronic device so that the charging pile can be controlled by the electronic device.

[0048] Figure 2 This is a flow chart of a method provided by an embodiment of the present invention. The electric energy metering method applied to a charging station is applicable to the electric energy metering system applied to a charging station, and involves the interaction between an electronic device and a charging pile. The specific process is as follows:

[0049] S201 , for M charged objects that are charged in a charging station within a preset time, the electronic device determines respective electric energy metering curves of the M charged objects in the charging station.

[0050] M is an integer greater than 2, i is an integer ranging from 1 to M, and for the i-th charged object among the M charged objects, the electric energy metering curve of the i-th charged object is used to describe the metering relationship between the electric energy and time of the i-th charged object during charging in the electric energy metering coordinate system. That is, in the electric energy metering coordinate system, the x-axis can be time, and the y-axis can be electric energy, which can be specifically as follows: Figure 3 As shown. For the i-th charged object, the electronic device obtains the electric energy metering curve of the i-th charged object from the charging pile that charges the i-th charged object in the charging station. For example, within the preset time, the electronic device receives the charging indication information sent by the charging pile, and the charging indication information is used to indicate that the charging pile is currently charging the i-th charged object; the electronic device sends the electric energy metering indication information to the charging pile according to the charging indication information, and the electric energy metering indication information is used to instruct the charging pile to record the electric energy metering curve of the i-th charged object; when the charging of the i-th charged object is completed, the electronic device receives the electric energy metering curve of the i-th charged object returned by the charging pile according to the electric energy metering indication information. Among them, the preset time can be a specified time period, or a periodic time period, such as 9:00 to 18:00 every day, or any other possible time period, without limitation.

[0051] S202: The electronic device determines multiple charging strategies of the charging station according to the electric energy metering curves of the M charged objects, wherein any two of the multiple charging strategies have different charging efficiencies.

[0052] For the i-th charged object, the electronic device determines a metering change feature point from the electric energy metering curve of the i-th charged object to obtain a metering change feature point set of the i-th charged object, the metering change feature point set of the i-th charged object includes Ki metering change feature points, Ki is an integer greater than or equal to 0, and when i traverses from 1 to M, a total of M metering change feature point sets are obtained.

[0053] For example, the electronic device may determine whether there is at least one curve segment in the electric energy metering curve of the i-th charged object whose slope change value exceeds the change threshold. Figure 3The electronic device determines the middle value of the slope change value corresponding to the point on at least one curve segment, and determines at least one point in total. The at least one point constitutes the metering change feature point set of the i-th charged object. That is, for a curve segment, its slope changes from small to large or from large to small, such as from k1 to k2, the point where the slope of |k1-k2| / 2 is located is the metering change feature point, such as Figure 3 O1 and O2 in .

[0054] The electronic device determines multiple charging strategies of the charging station according to the M sets of measurement change feature points.

[0055] Case 1: the multiple charging strategies of the charging station include a first charging strategy of the charging station. The first charging strategy is determined as follows.

[0056] The electronic device determines the first metering change feature point from the set of M metering change feature points. The first metering change feature point is the metering change feature point with the earliest time and the smallest electric energy in the electric energy metering coordinate system, such as Figure 4 The black dot corresponding to t1 is the first measurement change characteristic point.

[0057] The electronic device determines the second metering change feature point from the set of M metering change feature points according to the position of the first metering change feature point in the electric energy metering coordinate system.

[0058] Wherein: the time of the first metering change characteristic point in the electric energy metering coordinate system is t1, if there is no metering change characteristic point in the set of M metering change characteristic points whose time is within the preset time length t1+Δt1 after t1 and whose electric energy is greater than that of the first metering change characteristic point, that is, the first target metering change characteristic point, then the second metering change characteristic point is a metering change characteristic point in the set of M metering change characteristic points whose electric energy is greater than that of the first metering change characteristic point and whose time interval with the first metering change characteristic point is the smallest, that is, the second target metering change characteristic point, if there are M metering change characteristic points If there is a metering change feature point #1 in the set of change feature points whose time is within the preset time length t1+Δt1 and whose electric energy is greater than that of the first metering change feature point, then the second metering change feature point is a metering change feature point #1. If there are multiple metering change feature points #1 in the set of M metering change feature points whose time is within the preset time length t1+Δt1 and whose electric energy is greater than that of the first metering change feature point, then the second metering change feature point is the metering change feature point #1 with the largest difference in electric energy between the multiple metering change feature points #1 and the first metering change feature point. For example, Figure 4 The black dot corresponding to t2 is the second measurement change characteristic point.

[0059] The electronic device determines the third metering change feature point from the set of M metering change feature points according to the position of the second metering change feature point in the electric energy metering coordinate system.

[0060] Wherein: the time of the second metering change feature point in the electric energy metering coordinate system is t2. If there is no metering change feature point in the set of M metering change feature points whose time is within the preset time length t2+Δt1 after t2 and whose electric energy is larger than that of the second metering change feature point, then the third metering change feature point is a metering change feature point in the set of M metering change feature points whose electric energy is larger than that of the second metering change feature point and whose time interval with the second metering change feature point is the smallest. If there is a metering change feature point in the set of M metering change feature points whose time is within the preset time length t2+Δt1 after t2 and whose electric energy is larger than that of the second metering change feature point, then the third metering change feature point is a metering change feature point in the set of M metering change feature points whose electric energy is larger than that of the second metering change feature point and whose time interval with the second metering change feature point is the smallest. If there is a metering change feature point #2 within the preset time length t2+Δt1 and the electric energy is greater than the second metering change feature point, then the third metering change feature point is a metering change feature point #2. If there are multiple metering change feature points #2 in the set of M metering change feature points, and the time is within the preset time length t1+Δt1 and the electric energy is greater than the second metering change feature point, then the third metering change feature point is the metering change feature point #2 with the largest difference in electric energy between the electric energy and the second metering change feature point among the multiple metering change feature points #2. For example, Figure 4 The black dot corresponding to t3 is the second measurement change characteristic point.

[0061] This is repeated until the xth metering change feature point in the M metering change feature point set, where x is an integer greater than 2. If there is no metering change feature point in the M metering change feature point set with a larger electric energy than the xth metering change feature point, the electronic device determines to end the traversal and determines a total of x metering change feature points. Figure 4 The black dot corresponding to t5 is the fifth measurement change characteristic point.

[0062] The electronic device fits the x measurement change feature points according to their respective positions in the electric energy measurement coordinate system to obtain the first charging strategy of the charging station. The fitting can adopt existing fitting algorithms, such as the least square method, Hough transform, and RANSAC (random sample consensus algorithm), etc. The following is similar and will not be repeated. After fitting, the first charging strategy of the charging station can be as follows Figure 4 As shown, this is a strategy that prioritizes energy charging efficiency.

[0063] Case 2: The multiple charging strategies of the charging station include a second charging strategy of the charging station, and the second charging strategy is determined as follows.

[0064] The electronic device determines the first metering change feature point from the set of M metering change feature points. The first metering change feature point is the metering change feature point with the earliest time and the smallest electric energy in the electric energy metering coordinate system, such as Figure 5 The black dot corresponding to t1 is the first measurement change characteristic point.

[0065] The electronic device determines a second metering change characteristic point from the set of M metering change characteristic points according to the position of the first metering change characteristic point in the electric energy metering coordinate system;

[0066] Wherein: the time of the first metering change feature point in the electric energy metering coordinate system is t1, if there is no metering change feature point in the set of M metering change feature points whose time is within the preset time length t1+Δt2 after t1 and whose electric energy is greater than that of the first metering change feature point, i.e., the first target metering change feature point, then the second metering change feature point is a metering change feature point in the set of M metering change feature points whose electric energy is greater than that of the first metering change feature point and whose time interval with the first metering change feature point is the smallest, i.e., the second target metering change feature point, if the set of M metering change feature points If there is a metering change feature point #1 whose time is within the preset time length t1+Δt2 and whose electric energy is greater than the first metering change feature point, that is, the first target metering change feature point, then the second metering change feature point is a metering change feature point #1. If there are multiple metering change feature points #1 whose time is within the preset time length t1+Δt2 and whose electric energy is greater than the first metering change feature point in the set of M metering change feature points, then the second metering change feature point is the metering change feature point #1 with the second largest difference between the electric energy of the multiple metering change feature points #1 and the electric energy of the first metering change feature point. For example, Figure 5 The black dot corresponding to t2 is the second measurement change characteristic point.

[0067] The electronic device determines a third metering change characteristic point from the set of M metering change characteristic points according to the position of the second metering change characteristic point in the electric energy metering coordinate system;

[0068] Wherein: the time of the second metering change feature point in the electric energy metering coordinate system is t2. If there is no metering change feature point in the set of M metering change feature points whose time is within the preset time length t2+Δt2 after t2 and whose electric energy is larger than that of the second metering change feature point, then the third metering change feature point is a metering change feature point in the set of M metering change feature points whose electric energy is larger than that of the second metering change feature point and whose time interval with the second metering change feature point is the smallest. If there is a metering change feature point in the set of M metering change feature points whose time is within the preset time length t2+Δt2 after t2 and whose electric energy is larger than that of the second metering change feature point, then the third metering change feature point is a metering change feature point in the set of M metering change feature points whose electric energy is larger than that of the second metering change feature point and whose time interval with the second metering change feature point is the smallest. If there is a metering change feature point #2 that is within the preset time length t2+Δt2 and has a larger electric energy than the second metering change feature point, then the third metering change feature point is a metering change feature point #2. If there are multiple metering change feature points #2 in the set of M metering change feature points that are within the preset time length t1+Δt2 and have a larger electric energy than the second metering change feature point, then the third metering change feature point is the metering change feature point #2 with the second largest difference in electric energy between the multiple metering change feature points #2 and the second metering change feature point. For example, Figure 5 The black dot corresponding to t3 is the third measurement change characteristic point.

[0069] This is repeated until the xth metering change feature point in the M metering change feature point set, where x is an integer greater than 2. If there is no metering change feature point in the M metering change feature point set with a larger electric energy than the xth metering change feature point, the electronic device determines to end the traversal and determines a total of x metering change feature points. Figure 5 The black dot corresponding to t5 is the fifth measurement change characteristic point.

[0070] The electronic device fits the x measurement change characteristic points according to their respective positions in the electric energy measurement coordinate system to obtain the second charging strategy of the charging station. After fitting, the second charging strategy of the charging station can be as follows Figure 5 It can be seen that the second charging strategy of the charging station is smoother than the first charging strategy of the charging station, so as to take into account efficiency and avoid battery loss.

[0071] Case 3: The multiple charging strategies of the charging station include a third charging strategy of the charging station, and the third charging strategy is determined as follows.

[0072] The electronic device determines the first metering change feature point from the set of M metering change feature points. The first metering change feature point is the metering change feature point with the earliest time and the smallest electric energy in the electric energy metering coordinate system, such as Figure 6 The black dot corresponding to t1 is the first measurement change characteristic point.

[0073] The electronic device determines the second metering change feature point from the set of M metering change feature points according to the position of the first metering change feature point in the electric energy metering coordinate system.

[0074] Wherein: the time of the first metering change feature point in the electric energy metering coordinate system is t1, if there is no metering change feature point in the set of M metering change feature points whose time is within the preset time length t1+Δt3 after t1 and whose electric energy is greater than that of the first metering change feature point, i.e., the first target metering change feature point, then the second metering change feature point is a metering change feature point in the set of M metering change feature points whose electric energy is greater than that of the first metering change feature point and whose time interval with the first metering change feature point is the smallest, i.e., the second target metering change feature point, if the set of M metering change feature points If there is a metering change feature point #1 whose time is within the preset time length t1+Δt3 and whose electric energy is greater than the first metering change feature point, that is, the first target metering change feature point, then the second metering change feature point is a metering change feature point #1. If there are multiple metering change feature points #1 whose time is within the preset time length t1+Δt3 and whose electric energy is greater than the first metering change feature point in the set of M metering change feature points, then the second metering change feature point is the metering change feature point #1 whose electric energy difference with the first metering change feature point is the smallest among the multiple metering change feature points #1. For example, Figure 6 The black dot corresponding to t2 is the second measurement change characteristic point.

[0075] The electronic device determines the third metering change feature point from the set of M metering change feature points according to the position of the second metering change feature point in the electric energy metering coordinate system.

[0076] Wherein: the time of the second metering change feature point in the electric energy metering coordinate system is t2. If there is no metering change feature point in the set of M metering change feature points whose time is within the preset time length t2+Δt3 after t2 and whose electric energy is larger than that of the second metering change feature point, then the third metering change feature point is a metering change feature point in the set of M metering change feature points whose electric energy is larger than that of the second metering change feature point and whose time interval with the second metering change feature point is the smallest. If there is a metering change feature point in the set of M metering change feature points whose time is within the preset time length t2+Δt3 after t2 and whose electric energy is larger than that of the second metering change feature point, then the third metering change feature point is a metering change feature point in the set of M metering change feature points whose electric energy is larger than that of the second metering change feature point and whose time interval with the second metering change feature point is the smallest. If there is a metering change feature point #2 within the preset time length t2+Δt3 and the electric energy is greater than the second metering change feature point, then the third metering change feature point is a metering change feature point #2. If there are multiple metering change feature points #2 in the set of M metering change feature points, and the time is within the preset time length t1+Δt3 and the electric energy is greater than the second metering change feature point, then the third metering change feature point is the metering change feature point #2 with the smallest difference in electric energy between the electric energy of the second metering change feature point and the multiple metering change feature points #2. For example, Figure 6The black dot corresponding to t3 is the third measurement change characteristic point.

[0077] This is repeated until the xth metering change feature point in the M metering change feature point set, where x is an integer greater than 2. If there is no metering change feature point in the M metering change feature point set with a larger electric energy than the xth metering change feature point, the electronic device determines to end the traversal and determines a total of x metering change feature points. Figure 6 The black dot corresponding to t7 is the seventh measurement change characteristic point.

[0078] The electronic device fits the x measurement change feature points according to their respective positions in the electric energy measurement coordinate system to obtain the third charging strategy of the charging station. After fitting, the second charging strategy of the charging station can be as follows Figure 6 It can be seen that the third charging strategy of the charging station is smoother than the second charging strategy of the charging station to reduce efficiency and further avoid battery loss.

[0079] Optionally, Δt1 may be less than or equal to Δt2, and Δt2 may be less than or equal to Δt3.

[0080] In summary, by collecting the respective power metering curves of M charged objects that are charged in a charging station within a preset time, the electronic device can determine a plurality of charging strategies of the charging station according to the respective power metering curves of the M charged objects, so that the plurality of charging strategies of the charging station can be matched with the actual charging situation of the charged objects, that is, the corresponding charging strategy is determined according to the actual situation to meet the actual needs, such as selecting a suitable charging strategy from a plurality of charging strategies according to the actual device situation.

[0081] Combination of the above Figure 2 The method provided by the embodiment of the present invention is described in detail. The following is a detailed description of an electric energy metering system applied to a charging station for executing the method provided by the embodiment of the present invention.

[0082] The system includes an electronic device, which is configured as follows: for M charged objects that are charged in a charging station within a preset time, the electronic device determines respective electric energy metering curves of the M charged objects in the charging station, where M is an integer greater than 2, and i is any integer from 1 to M. For the i-th charged object among the M charged objects, the electric energy metering curve of the i-th charged object is used to describe the metering relationship between electric energy and time of the i-th charged object during charging in an electric energy metering coordinate system; the electronic device determines multiple charging strategies of the charging station according to the respective electric energy metering curves of the M charged objects, and the charging efficiencies of any two of the multiple charging strategies are different.

[0083] Optionally, the electronic device determines the power metering curves of the M charged objects in the charging station, including: for the ith charged object, the electronic device obtains the power metering curve of the ith charged object from the charging pile that charges the ith charged object in the charging station.

[0084] Optionally, the electronic device obtains the electric energy metering curve of the i-th charged object from the charging pile that charges the i-th charged object in the charging station, including: within a preset time, the electronic device receives charging indication information sent by the charging pile, the charging indication information is used to indicate that the charging pile is currently charging the i-th charged object; the electronic device sends electric energy metering indication information to the charging pile according to the charging indication information, the electric energy metering indication information is used to instruct the charging pile to record the electric energy metering curve of the i-th charged object; when the charging of the i-th charged object is completed, the electronic device receives the electric energy metering curve of the i-th charged object returned by the charging pile according to the electric energy metering indication information.

[0085] Optionally, the electronic device determines multiple charging strategies of the charging station according to the respective electric energy metering curves of the M charged objects, including: for the ith charged object, the electronic device determines the metering change feature point from the electric energy metering curve of the ith charged object to obtain a metering change feature point set of the ith charged object, the metering change feature point set of the ith charged object includes Ki metering change feature points, Ki is an integer greater than or equal to 0, and when i traverses from 1 to M, a total of M metering change feature point sets are obtained; the electronic device determines the multiple charging strategies of the charging station according to the M metering change feature point sets.

[0086] Optionally, the electronic device determines a metering change characteristic point from the electric energy metering curve of the i-th charged object to obtain a metering change characteristic point set of the i-th charged object, including: the electronic device determines whether there is at least one curve segment in the electric energy metering curve of the i-th charged object whose slope change value exceeds the change threshold; if there is at least one curve segment in the electric energy metering curve of the i-th charged object whose slope change value exceeds the change threshold, the electronic device determines a point on the at least one curve segment corresponding to an intermediate value of the slope change value, and determines at least one point in total, and the at least one point constitutes the metering change characteristic point set of the i-th charged object.

[0087] Optionally, the multiple charging strategies of the charging station include a first charging strategy of the charging station, and the electronic device determines the multiple charging strategies of the charging station according to the M metering change feature point sets, including: the electronic device determines the first metering change feature point from the M metering change feature point sets, and the first metering change feature point is the metering change feature point with the earliest time and the smallest electric energy in the electric energy metering coordinate system; the electronic device determines the second metering change feature point from the M metering change feature point set according to the position of the first metering change feature point in the electric energy metering coordinate system; wherein: the time of the first metering change feature point in the electric energy metering coordinate system is t1, if there is no time in the M metering change feature point set that is located after t1 If the metering change feature point is within the preset time length t1+Δt1 and the electric energy is greater than the first metering change feature point, then the second metering change feature point is a metering change feature point in the set of M metering change feature points whose electric energy is greater than the first metering change feature point and whose time interval with the first metering change feature point is the smallest. If there is a metering change feature point #1 in the set of M metering change feature points whose time is within the preset time length t1+Δt1 and the electric energy is greater than the first metering change feature point, then the second metering change feature point is a metering change feature point #1. If there are multiple metering change feature points in the set of M metering change feature points whose time is within the preset time length t1+Δt1 and the electric energy is greater than the first metering change feature point, The second metering change feature point is the metering change feature point #1 whose electric energy difference with the first metering change feature point is the largest among the multiple metering change feature points #1; the electronic device determines the third metering change feature point from the set of M metering change feature points according to the position of the second metering change feature point in the electric energy metering coordinate system; wherein: the time of the second metering change feature point in the electric energy metering coordinate system is t2, if there is no metering change feature point in the set of M metering change feature points whose time is within the preset time length t2+Δt1 after t2, and whose electric energy is greater than that of the second metering change feature point, then the third metering change feature point is the metering change feature point whose electric energy is greater than that of the first metering change feature point in the set of M metering change feature points. The second metering change feature point is larger than the second metering change feature point and has the smallest time interval with the second metering change feature point. If there is a metering change feature point #2 in the set of M metering change feature points whose time is within the preset time length t2+Δt1 and whose electric energy is larger than the second metering change feature point, then the third metering change feature point is a metering change feature point #2. If there are multiple metering change feature points #2 in the set of M metering change feature points whose time is within the preset time length t1+Δt1 and whose electric energy is larger than the second metering change feature point, then the third metering change feature point is the metering change feature point #2 whose electric energy difference with the second metering change feature point is the largest among the multiple metering change feature points #2.And so on, until the xth metering change feature point in the set of M metering change feature points, x is an integer greater than 2, if there is no metering change feature point in the set of M metering change feature points whose electric energy is greater than the xth metering change feature point, then the electronic device determines to end the traversal, and a total of x metering change feature points are determined; the electronic device fits the x metering change feature points according to their respective positions in the electric energy metering coordinate system, and obtains the first charging strategy of the charging station. ;

[0088] Optionally, the multiple charging strategies of the charging station include a second charging strategy of the charging station, and the electronic device determines the multiple charging strategies of the charging station according to the M metering change feature point sets, including: the electronic device determines the first metering change feature point from the M metering change feature point sets, and the first metering change feature point is the metering change feature point with the earliest time and the smallest electric energy in the electric energy metering coordinate system; the electronic device determines the second metering change feature point from the M metering change feature point set according to the position of the first metering change feature point in the electric energy metering coordinate system; wherein: the time of the first metering change feature point in the electric energy metering coordinate system is t1, if there is no time in the M metering change feature point set that is located after t1 If the metering change feature point is within the preset time length t1+Δt2 and the electric energy is greater than the first metering change feature point, then the second metering change feature point is a metering change feature point in the set of M metering change feature points whose electric energy is greater than the first metering change feature point and whose time interval with the first metering change feature point is the smallest. If there is a metering change feature point #1 in the set of M metering change feature points whose time is within the preset time length t1+Δt2 and the electric energy is greater than the first metering change feature point, then the second metering change feature point is a metering change feature point #1. If there are multiple metering change feature points in the set of M metering change feature points whose time is within the preset time length t1+Δt2 and the electric energy is greater than the first metering change feature point, The second metering change feature point is the metering change feature point #1 whose electric energy difference with the first metering change feature point is the second largest among the multiple metering change feature points #1; the electronic device determines the third metering change feature point from the set of M metering change feature points according to the position of the second metering change feature point in the electric energy metering coordinate system; wherein: the time of the second metering change feature point in the electric energy metering coordinate system is t2, if there is no metering change feature point in the set of M metering change feature points whose time is within the preset time length t2+Δt2 after t2, and whose electric energy is larger than that of the second metering change feature point, then the third metering change feature point is the metering change feature point whose electric energy is larger than that of the first metering change feature point in the set of M metering change feature points. The second metering change feature point is larger than the second metering change feature point and has the smallest time interval with the second metering change feature point. If there is a metering change feature point #2 in the set of M metering change feature points whose time is within the preset time length t2+Δt2 and whose electric energy is larger than the second metering change feature point, then the third metering change feature point is a metering change feature point #2. If there are multiple metering change feature points #2 in the set of M metering change feature points whose time is within the preset time length t1+Δt2 and whose electric energy is larger than the second metering change feature point, then the third metering change feature point is the metering change feature point #2 with the second largest electric energy difference between the multiple metering change feature points #2 and the second metering change feature point.And so on, until the xth metering change feature point in the set of M metering change feature points, x is an integer greater than 2, if there is no metering change feature point in the set of M metering change feature points whose electric energy is greater than the xth metering change feature point, then the electronic device determines to end the traversal, and a total of x metering change feature points are determined; the electronic device fits the x metering change feature points according to their respective positions in the electric energy metering coordinate system, and obtains the second charging strategy of the charging station. ;

[0089] Optionally, the multiple charging strategies of the charging station include a third charging strategy of the charging station, and the electronic device determines the multiple charging strategies of the charging station according to the M metering change feature point sets, including: the electronic device determines the first metering change feature point from the M metering change feature point sets, and the first metering change feature point is the metering change feature point with the earliest time and the smallest electric energy in the electric energy metering coordinate system; the electronic device determines the second metering change feature point from the M metering change feature point set according to the position of the first metering change feature point in the electric energy metering coordinate system; wherein: the time of the first metering change feature point in the electric energy metering coordinate system is t1, if there is no time in the M metering change feature point set that is located after t1 If the metering change feature point is within the preset time length t1+Δt3 and the electric energy is greater than the first metering change feature point, then the second metering change feature point is a metering change feature point in the set of M metering change feature points whose electric energy is greater than the first metering change feature point and whose time interval with the first metering change feature point is the smallest. If there is a metering change feature point #1 in the set of M metering change feature points whose time is within the preset time length t1+Δt3 and the electric energy is greater than the first metering change feature point, then the second metering change feature point is a metering change feature point #1. If there are multiple metering change feature points in the set of M metering change feature points whose time is within the preset time length t1+Δt3 and the electric energy is greater than the first metering change feature point, The second metering change feature point is the metering change feature point #1 whose electric energy difference with the first metering change feature point is the smallest among the multiple metering change feature points #1; the electronic device determines the third metering change feature point from the set of M metering change feature points according to the position of the second metering change feature point in the electric energy metering coordinate system; wherein: the time of the second metering change feature point in the electric energy metering coordinate system is t2, if there is no metering change feature point in the set of M metering change feature points whose time is within the preset time length t2+Δt3 after t2, and whose electric energy is greater than that of the second metering change feature point, then the third metering change feature point is the metering change feature point in the set of M metering change feature points whose electric energy is greater than that of the first metering change feature point. The second metering change feature point is larger than the second metering change feature point and has the smallest time interval with the second metering change feature point. If there is a metering change feature point #2 in the set of M metering change feature points whose time is within the preset time length t2+Δt3 and whose electric energy is larger than the second metering change feature point, then the third metering change feature point is a metering change feature point #2. If there are multiple metering change feature points #2 in the set of M metering change feature points whose time is within the preset time length t1+Δt3 and whose electric energy is larger than the second metering change feature point, then the third metering change feature point is the metering change feature point #2 with the smallest electric energy difference between the electric energy of the multiple metering change feature points #2 and the electric energy of the second metering change feature point.And so on, until the xth metering change feature point in the set of M metering change feature points, x is an integer greater than 2, if there is no metering change feature point in the set of M metering change feature points whose electric energy is greater than the xth metering change feature point, then the electronic device determines to end the traversal, and a total of x metering change feature points are determined; the electronic device fits the x metering change feature points according to their respective positions in the electric energy metering coordinate system, and obtains the third charging strategy of the charging station. ;

[0090] Optionally, Δt1 is smaller than Δt2, and Δt is smaller than Δt3.

[0091] Figure 7 The schematic diagram of the structure of the electronic device provided by the embodiment of the present invention. For example, the electronic device may be a network device, or a chip (system) or other components or assemblies that can be set in the network device. Figure 7 As shown, the electronic device 400 may include a processor 401. Optionally, the electronic device 400 may further include a memory 402 and / or a transceiver 403. The processor 401 is coupled with the memory 402 and the transceiver 403, such as being connected via a communication bus.

[0092] Combine the following Figure 7 The components of the electronic device 400 are described in detail:

[0093] The processor 401 is the control center of the electronic device 400, and may be a processor or a general term for multiple processing elements. For example, the processor 401 is one or more central processing units (CPUs), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention, such as one or more microprocessors (digital signal processors, DSPs), or one or more field programmable gate arrays (FPGAs).

[0094] Optionally, the processor 401 can execute various functions of the electronic device 400 by running or executing the software program stored in the memory 402 and calling the data stored in the memory 402, such as executing the above Figure 2 The electric energy metering method shown is applied to a charging station.

[0095] In a specific implementation, as an embodiment, the processor 401 may include one or more CPUs, such as Figure 7CPU0 and CPU1 are shown in FIG.

[0096] In a specific implementation, as an embodiment, the electronic device 400 may also include multiple processors. Each of these processors may be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). The processor here may refer to one or more devices, circuits, and / or processing cores for processing data (such as computer program instructions).

[0097] The memory 402 is used to store the software program for executing the solution of the present invention, and the execution is controlled by the processor 401. The specific implementation method can refer to the above method embodiment, which will not be repeated here.

[0098] Optionally, the memory 402 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 402 may be integrated with the processor 401, or may exist independently and access the computer through the interface circuit ( Figure 7 The processor 401 is coupled to the processor 401 (not shown), which is not specifically limited in this embodiment of the present invention.

[0099] The transceiver 403 is used for communication with other electronic devices. For example, if the electronic device 400 is a terminal, the transceiver 403 can be used to communicate with a network device, or with another terminal device. For another example, if the electronic device 400 is a network device, the transceiver 403 can be used to communicate with a terminal, or with another network device.

[0100] Optionally, the transceiver 403 may include a receiver and a transmitter ( Figure 7 The receiver is used to implement a receiving function, and the transmitter is used to implement a sending function.

[0101] Optionally, the transceiver 403 may be integrated with the processor 401, or may exist independently and communicate with the electronic device 400 through an interface circuit ( Figure 7 The processor 401 is coupled to the processor 401 (not shown), which is not specifically limited in this embodiment of the present invention.

[0102] Understandably, Figure 7 The structure of the electronic device 400 shown in the figure does not constitute a limitation on the electronic device, and the actual electronic device may include more or fewer components than those shown in the figure, or combine certain components, or arrange the components differently.

[0103] In addition, the technical effects of the electronic device 400 can refer to the technical effects of the methods described in the above method embodiments, which will not be repeated here.

[0104] It should be understood that the processor in the embodiment of the present invention may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0105] It should also be understood that the memory in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0106] The above embodiments can be implemented in whole or in part by software, hardware (such as circuits), firmware or any other combination. When implemented by software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more available media sets. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state hard disk.

[0107] It should be understood that the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship, but it may also indicate an "and / or" relationship. Please refer to the context for specific understanding.

[0108] In the present invention, "at least one" means one or more, and "plurality" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0109] It should be understood that in various embodiments of the present invention, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0110] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0111] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0112] In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0113] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0114] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0115] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program codes.

[0116] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for measuring electric energy applied to a charging station, characterized in that: Applied to an electronic device, the charging station is controlled by the electronic device, and the method includes: For M charged objects that are charged in the charging station within a preset time, the electronic device determines the respective electric energy metering curves of the M charged objects in the charging station, where M is an integer greater than 2, and i is an integer ranging from 1 to M. For the i-th charged object among the M charged objects, the electric energy metering curve of the i-th charged object is used to describe the metering relationship between electric energy and time of the i-th charged object during charging in the electric energy metering coordinate system; The electronic device determines a plurality of charging strategies of the charging station according to the respective electric energy metering curves of the M charged objects, wherein any two of the plurality of charging strategies have different charging efficiencies; The electronic device determines the electric energy metering curves of the M charged objects in the charging station, including: For the i-th charged object, the electronic device obtains an electric energy metering curve of the i-th charged object from a charging pile in the charging station that charges the i-th charged object; The electronic device obtains the electric energy metering curve of the i-th charged object from the charging pile that charges the i-th charged object in the charging station, including: Within the preset time, the electronic device receives charging indication information sent by the charging pile, where the charging indication information is used to indicate that the charging pile is currently charging the i-th charged object; The electronic device sends electric energy metering indication information to the charging pile according to the charging indication information, wherein the electric energy metering indication information is used to instruct the charging pile to record the electric energy metering curve of the i-th charged object; When the charging of the i-th charged object is completed, the electronic device receives the electric energy metering curve of the i-th charged object returned by the charging pile according to the electric energy metering indication information; The electronic device determines multiple charging strategies of the charging station according to the respective electric energy metering curves of the M charged objects, including: For the i-th charged object, the electronic device determines a metering change feature point from the electric energy metering curve of the i-th charged object to obtain a metering change feature point set of the i-th charged object, wherein the metering change feature point set of the i-th charged object includes Ki metering change feature points, where Ki is an integer greater than or equal to 0, and when i traverses from 1 to M, a total of M metering change feature point sets are obtained; The electronic device determines multiple charging strategies of the charging station according to the M sets of measurement change feature points; The electronic device determines a metering change feature point from the electric energy metering curve of the i-th charged object to obtain a metering change feature point set of the i-th charged object, including: The electronic device determines whether there is at least one curve segment in the electric energy metering curve of the i-th charged object whose slope change value exceeds a change threshold; If there is at least one curve segment in the electric energy metering curve of the i-th charged object whose slope change value exceeds the change threshold, the electronic device determines a point on the at least one curve segment corresponding to the middle value of the slope change value, and determines at least one point in total, and the at least one point constitutes a metering change feature point set of the i-th charged object.

2. The method according to claim 1, characterized in that The multiple charging strategies of the charging station include a first charging strategy of the charging station, and the electronic device determines the multiple charging strategies of the charging station according to the M measurement change feature point sets, including: The electronic device determines a first metering change feature point from the M metering change feature point sets, wherein the first metering change feature point is a metering change feature point with the earliest time and the smallest electric energy in the electric energy metering coordinate system; The electronic device determines, according to the position of the first measurement change characteristic point in the electric energy measurement coordinate system, a second measurement change characteristic point from the set of M measurement change characteristic points; Wherein: the time of the first metering change characteristic point in the electric energy metering coordinate system is t1, if the first target metering change characteristic point does not exist in the set of M metering change characteristic points, then the second metering change characteristic point is the second target metering change characteristic point; if the first target metering change characteristic point exists in the set of M metering change characteristic points, then the second metering change characteristic point is the first target metering change characteristic point; if there are multiple first target metering change characteristic points in the set of M metering change characteristic points, then the second metering change characteristic point is the metering change characteristic point with the largest electric energy difference between the electric energy of the multiple first target metering change characteristic points and the electric energy of the first metering change characteristic point; The first target metering change characteristic point is a metering change characteristic point whose time is within a preset time length t1+Δt1 after t1 and whose electric energy is greater than that of the first metering change characteristic point; the second target metering change characteristic point is a metering change characteristic point in the set of M metering change characteristic points whose electric energy is greater than that of the first metering change characteristic point and whose time interval with the first metering change characteristic point is the smallest; And so on, until the xth metering change feature point in the set of M metering change feature points, x is an integer greater than 2, if there is no metering change feature point in the set of M metering change feature points whose electric energy is greater than the xth metering change feature point, then the electronic device determines to end the traversal, and a total of x metering change feature points are determined; The electronic device fits the x measurement change characteristic points according to respective positions of the x measurement change characteristic points in the electric energy measurement coordinate system to obtain a first charging strategy for the charging station.

3. The method according to claim 1, characterized in that The multiple charging strategies of the charging station include a second charging strategy of the charging station, and the electronic device determines the multiple charging strategies of the charging station according to the M sets of measurement change feature points, including: The electronic device determines a first metering change feature point from the M metering change feature point sets, wherein the first metering change feature point is a metering change feature point with the earliest time and the smallest electric energy in the electric energy metering coordinate system; The electronic device determines, according to the position of the first measurement change characteristic point in the electric energy measurement coordinate system, a second measurement change characteristic point from the set of M measurement change characteristic points; Wherein: the time of the first metering change characteristic point in the electric energy metering coordinate system is t1, if the first target metering change characteristic point does not exist in the set of M metering change characteristic points, then the second metering change characteristic point is the second target metering change characteristic point; if the first target metering change characteristic point exists in the set of M metering change characteristic points, then the second metering change characteristic point is the first target metering change characteristic point; if there are multiple first target metering change characteristic points in the set of M metering change characteristic points, then the second metering change characteristic point is the metering change characteristic point with the largest electric energy difference between the electric energy of the multiple first target metering change characteristic points and the electric energy of the first metering change characteristic point; The first target metering change characteristic point is a metering change characteristic point whose time is within a preset time length t1+Δt2 after t1 and whose electric energy is greater than that of the first metering change characteristic point; the second target metering change characteristic point is a metering change characteristic point in the set of M metering change characteristic points whose electric energy is greater than that of the first metering change characteristic point and whose time interval with the first metering change characteristic point is the smallest; And so on, until the xth metering change feature point in the set of M metering change feature points, x is an integer greater than 2, if there is no metering change feature point in the set of M metering change feature points whose electric energy is greater than the xth metering change feature point, then the electronic device determines to end the traversal, and a total of x metering change feature points are determined; The electronic device fits the x measurement change characteristic points according to respective positions of the x measurement change characteristic points in the electric energy measurement coordinate system to obtain a second charging strategy for the charging station.

4. The method according to claim 1, characterized in that: The multiple charging strategies of the charging station include a third charging strategy of the charging station, and the electronic device determines the multiple charging strategies of the charging station according to the M measurement change feature point sets, including: The electronic device determines a first metering change feature point from the M metering change feature point sets, wherein the first metering change feature point is a metering change feature point with the earliest time and the smallest electric energy in the electric energy metering coordinate system; The electronic device determines, according to the position of the first measurement change characteristic point in the electric energy measurement coordinate system, a second measurement change characteristic point from the set of M measurement change characteristic points; Wherein: the time of the first metering change characteristic point in the electric energy metering coordinate system is t1, if the first target metering change characteristic point does not exist in the set of M metering change characteristic points, then the second metering change characteristic point is the second target metering change characteristic point; if the first target metering change characteristic point exists in the set of M metering change characteristic points, then the second metering change characteristic point is the first target metering change characteristic point; if there are multiple first target metering change characteristic points in the set of M metering change characteristic points, then the second metering change characteristic point is the metering change characteristic point with the largest electric energy difference between the electric energy of the multiple first target metering change characteristic points and the electric energy of the first metering change characteristic point; The first target metering change characteristic point is a metering change characteristic point whose time is within a preset time length t1+Δt3 after t1 and whose electric energy is greater than that of the first metering change characteristic point; the second target metering change characteristic point is a metering change characteristic point in the set of M metering change characteristic points whose electric energy is greater than that of the first metering change characteristic point and whose time interval with the first metering change characteristic point is the smallest; And so on, until the xth metering change feature point in the set of M metering change feature points, x is an integer greater than 2, if there is no metering change feature point in the set of M metering change feature points whose electric energy is greater than the xth metering change feature point, then the electronic device determines to end the traversal, and a total of x metering change feature points are determined; The electronic device fits the x measurement change characteristic points according to respective positions of the x measurement change characteristic points in the electric energy measurement coordinate system to obtain a third charging strategy of the charging station.

5. The method according to any one of claims 2 to 4, characterized in that: Δt1 is smaller than Δt2, and Δt2 is smaller than Δt3.

6. An electric energy metering system applied to a charging station, characterized in that: The system comprises an electronic device, wherein the system is configured to: For M charged objects charged in the charging station within a preset time, the electronic device determines the respective electric energy metering curves of the M charged objects in the charging station, where M is an integer greater than 2, and i is any integer from 1 to M. For the i-th charged object among the M charged objects, the electric energy metering curve of the i-th charged object is used to describe the metering relationship between electric energy and time of the i-th charged object during charging in the electric energy metering coordinate system; The electronic device determines a plurality of charging strategies of the charging station according to the respective electric energy metering curves of the M charged objects, wherein any two of the plurality of charging strategies have different charging efficiencies; The electronic device determines the electric energy metering curves of the M charged objects in the charging station, including: For the i-th charged object, the electronic device obtains an electric energy metering curve of the i-th charged object from a charging pile in the charging station that charges the i-th charged object; The electronic device obtains the electric energy metering curve of the i-th charged object from the charging pile that charges the i-th charged object in the charging station, including: Within the preset time, the electronic device receives charging indication information sent by the charging pile, where the charging indication information is used to indicate that the charging pile is currently charging the i-th charged object; The electronic device sends electric energy metering indication information to the charging pile according to the charging indication information, wherein the electric energy metering indication information is used to instruct the charging pile to record the electric energy metering curve of the i-th charged object; When the charging of the i-th charged object is completed, the electronic device receives the electric energy metering curve of the i-th charged object returned by the charging pile according to the electric energy metering indication information; The electronic device determines multiple charging strategies of the charging station according to the respective electric energy metering curves of the M charged objects, including: For the i-th charged object, the electronic device determines a metering change feature point from the electric energy metering curve of the i-th charged object to obtain a metering change feature point set of the i-th charged object, wherein the metering change feature point set of the i-th charged object includes Ki metering change feature points, where Ki is an integer greater than or equal to 0, and when i traverses from 1 to M, a total of M metering change feature point sets are obtained; The electronic device determines multiple charging strategies of the charging station according to the M sets of measurement change feature points; The electronic device determines a metering change feature point from the electric energy metering curve of the i-th charged object to obtain a metering change feature point set of the i-th charged object, including: The electronic device determines whether there is at least one curve segment in the electric energy metering curve of the i-th charged object whose slope change value exceeds a change threshold; If there is at least one curve segment in the electric energy metering curve of the i-th charged object whose slope change value exceeds the change threshold, the electronic device determines a point on the at least one curve segment corresponding to the middle value of the slope change value, and determines at least one point in total, and the at least one point constitutes a metering change feature point set of the i-th charged object.

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