Charging device recommendation method and related apparatus

Abstract

The application provides a charging device recommendation method and related device, and the method comprises the following steps: receiving a charging request carrying target demand information from a client device; determining a first charging device group from a plurality of charging devices according to a target charging time and a target position indicated by the target demand information; determining a second charging device group from the first charging device group, wherein the second charging device group comprises charging devices powered by a commercial power supply and / or charging devices powered by a household storage device and having a residual power greater than a preset power; determining a charging reference fee of each charging device at the target charging time according to a reference electricity price and an additional fee of each charging device at the target charging time in the second charging device group; determining a target charging device from the second charging device group according to the charging reference fee of each charging device; and sending position information of the target charging device to the client device. The application is beneficial to improving the intelligence of charging device recommendation.

Description

Technical Field

[0001] This application relates to the field of electric vehicle charging technology, specifically to a recommended method for charging devices and related devices. Background Technology

[0002] With the promotion of environmental protection concepts, people's demand for clean energy is constantly growing, the application of electric vehicles is becoming more widespread, and electric vehicle charging services are also developing rapidly. Currently, when users need to charge their electric vehicles, they have to find and select suitable charging devices themselves, which is inefficient and difficult. Summary of the Invention

[0003] This application provides a method for recommending charging devices and related apparatus.

[0004] In a first aspect, embodiments of this application provide a method for recommending a charging device, the method comprising:

[0005] Receive a charging request from a client device carrying target demand information, wherein the target demand information is used to indicate the target charging time, target location, and target charging amount;

[0006] Based on the target charging time and the target location, a first charging device group is determined from the plurality of charging devices, wherein the charging devices in the first charging device group are idle during the target charging time, and the distance between the charging devices in the first charging device group and the target location is less than a preset distance.

[0007] A second charging device group is determined from the first charging device group, the second charging device group comprising: a charging device powered by mains power, and / or a charging device powered by a home storage device and the remaining power of the home storage device is greater than a preset power, the preset power being determined based on the target charging amount;

[0008] Based on the reference electricity price and additional charges for each charging device in the second charging device group during the target charging time, the reference charging cost for each charging device during the target charging time is determined, wherein the additional charges include at least one of the following: parking fee and charging service fee.

[0009] Based on the charging reference cost of each charging device, a target charging device is determined from the second group of charging devices;

[0010] The location information of the target charging device is sent to the client device.

[0011] Secondly, embodiments of this application provide a charging device recommendation device, the charging device recommendation device comprising:

[0012] A receiving unit is configured to receive a charging request from a client device carrying target demand information, wherein the target demand information is used to indicate the target charging time, target location, and target charging amount.

[0013] The first determining unit is configured to determine a first charging device group from the plurality of charging devices based on the target charging time and the target location, wherein the charging devices in the first charging device group are idle during the target charging time, and the distance between the charging devices in the first charging device group and the target location is less than a preset distance.

[0014] The second determining unit is configured to determine a second charging device group from the first charging device group, the second charging device group comprising: a charging device powered by mains power, and / or a charging device powered by a home storage device and the remaining power of the home storage device is greater than a preset power, the preset power being determined based on the target charging amount;

[0015] The third determining unit is used to determine the charging reference cost of each charging device during the target charging time based on the reference electricity price and additional costs of each charging device in the second charging device group during the target charging time. The additional costs include at least one of the following: parking fees and charging service fees.

[0016] The fourth determining unit is used to determine the target charging device from the second group of charging devices based on the charging reference cost of each charging device.

[0017] The sending unit is used to send the location information of the target charging device to the client device.

[0018] Thirdly, embodiments of this application provide a management device, the management device comprising:

[0019] One or more processors;

[0020] One or more memories are used to store programs.

[0021] The one or more memories and the program are configured such that the one or more processors control the device to perform the steps of the method as described in the first aspect.

[0022] Fourthly, this application provides a charging device management system, which includes a plurality of charging devices and a management device as described in the first aspect.

[0023] Fifthly, this application provides a computer-readable storage medium storing a computer program for electronic data interchange, wherein the computer program causes a computer to perform some or all of the steps described in the first aspect of the embodiments of this application.

[0024] Sixthly, this application provides a computer program product, wherein the computer program product is operable to cause a computer to perform some or all of the steps described in any method of the first aspect of the embodiments of this application. The computer program product may be a software installation package.

[0025] As can be seen from the embodiments of this application, the management device can automatically determine a first group of charging devices from multiple charging devices based on the target charging time and target location carried in the charging request. Then, it further determines a second group of charging devices from the first group, which is powered by mains electricity and / or by a user storage device with a remaining power of more than a preset power level, where the preset power level is determined based on the target charging amount carried in the charging request. Afterward, the management device filters out suitable target charging devices based on the electricity price and additional charges of the second group of charging devices and pushes the location information of the target charging devices to the client device from which the charging request originated. This helps users quickly determine charging devices that meet their needs and are reasonably priced, and provides users with location information, eliminating the need for users to search for and select charging devices themselves, saving users time and money, and improving the intelligence of charging device recommendations. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1a This is a schematic diagram of the architecture of a charging device management system provided in an embodiment of this application;

[0028] Figure 1b This is a schematic diagram of the architecture of another charging device management system provided in an embodiment of this application;

[0029] Figure 1c This is an application scenario diagram of an energy storage system provided in an embodiment of this application;

[0030] Figure 1d This is a schematic diagram of the structure of a management device provided in an embodiment of this application;

[0031] Figure 2a This is a schematic flowchart of a charging device recommendation method provided in an embodiment of this application;

[0032] Figure 2b This is a schematic diagram of a charging device recommendation interface provided in an embodiment of this application;

[0033] Figure 3a This is a schematic diagram of the composition structure of a recommended charging device provided in an embodiment of this application;

[0034] Figure 3b This is a schematic diagram of the composition structure of another recommended charging device provided in the embodiments of this application. Detailed Implementation

[0035] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0036] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0037] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0038] The client devices involved in the embodiments of this application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem with wireless communication capabilities, as well as various forms of user equipment (UE), mobile station (MS), terminal device, etc. For ease of description, the devices mentioned above are collectively referred to as client devices.

[0039] This application provides a charging device recommendation method and related apparatus. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0040] Because the energy we need is highly time- and space-dependent, in order to utilize energy rationally and improve energy efficiency, it is necessary to store one form of energy in the same way or by converting it into another, and then release it in a specific energy form for future applications. Currently, the main way to generate green electricity is to develop green energy sources such as photovoltaics and wind power to replace fossil fuels.

[0041] Currently, the generation of green electricity generally relies on solar, wind, and hydropower. However, wind and solar power are generally characterized by strong intermittency and large fluctuations, which can cause grid instability, insufficient power during peak demand periods, and excessive power during off-peak periods. Unstable voltage can also damage the power grid. Therefore, insufficient electricity demand or insufficient grid capacity may lead to the problem of "wind and solar curtailment." Solving these problems requires energy storage. This involves converting electrical energy into other forms of energy through physical or chemical means and storing it. When needed, this energy can be converted back into electrical energy and released. Simply put, energy storage is like a large "power bank," storing electrical energy when solar and wind power are abundant and releasing the stored electricity when needed.

[0042] Taking electrochemical energy storage as an example, this application provides an energy storage device. The energy storage device is equipped with a set of chemical batteries. It mainly uses the chemical elements in the batteries as energy storage medium. The charging and discharging process is accompanied by the chemical reaction or change of the energy storage medium. Simply put, the electrical energy generated by wind and solar energy is stored in the chemical batteries. When the use of external electrical energy reaches its peak, the stored electricity is released for use, or transferred to places with a shortage of electricity for use.

[0043] Current energy storage applications are quite widespread, including generation-side energy storage, grid-side energy storage, and consumption-side energy storage. The corresponding types of energy storage devices include:

[0044] (1) Large-scale energy storage power stations applied to wind power and photovoltaic power stations can help renewable energy power generation meet grid connection requirements and improve the utilization rate of renewable energy. As a high-quality active / reactive power regulation power source on the power supply side, energy storage power stations can achieve load matching of power in time and space, enhance the absorption capacity of renewable energy, reduce instantaneous power changes, reduce the impact on the power grid, improve the absorption of new energy power generation, and are of great significance in power grid system backup, alleviating peak load power supply pressure and peak regulation and frequency regulation.

[0045] (2) Energy storage containers applied on the grid side mainly function as peak shaving, frequency regulation and relief of grid congestion. In terms of peak shaving, they can realize peak shaving and valley filling of electricity load, that is, charging the energy storage battery when the electricity load is low and releasing the stored electricity during the peak electricity load period, thereby achieving a balance between power production and consumption.

[0046] (3) Small energy storage cabinets applied to the electricity consumption side mainly function as self-consumption of electricity, peak-valley price arbitrage, capacity cost management, and improvement of power supply reliability. Depending on the application scenario, electricity consumption side energy storage can be divided into industrial and commercial energy storage cabinets, household energy storage devices, energy storage charging piles, etc., which are generally used in conjunction with distributed photovoltaics. Industrial and commercial users can use energy storage for peak-valley price arbitrage and capacity cost management. In the electricity market implementing peak-valley pricing, by charging the energy storage system when the electricity price is low and discharging the energy storage system when the electricity price is high, peak-valley price arbitrage can be achieved, reducing electricity costs. In addition, industrial enterprises subject to two-part tariffs can use energy storage systems to store energy during off-peak hours and discharge during peak loads, thereby reducing peak power and the maximum demand declared, achieving the goal of reducing capacity costs. Household photovoltaics with energy storage can improve the level of self-consumption of electricity. Due to high electricity prices and poor power supply stability, the demand for household photovoltaic installations is driven. Given that photovoltaic power generation occurs during the day, while user load is generally higher at night, configuring energy storage can better utilize photovoltaic power, improve self-consumption levels, and reduce electricity costs. Furthermore, energy storage is needed in areas such as communication base stations and data centers for backup power.

[0047] See Figure 1a This application provides a charging device management system 10, which includes a management device 100 and a charging device 200, such as... Figure 1a The communication connection shown by the dashed line indicates that the management device 100 and the charging device 200 are connected. The management device 100 can communicate with the charging device 200 to obtain information such as the location, electricity price, and remaining power of the charging device 200. After receiving a charging request, the management device 100 can recommend a suitable charging device to the user based on the information obtained from the charging device 200.

[0048] Specifically, such as Figure 1aAs shown, the charging device management system 10 may also include a client device 300, which can communicate with the management device 100. The management device 100 can receive charging requests carrying target demand information from the client device 300, and based on the target charging time and target location included in the target demand information, it selects a first group of charging devices from multiple charging devices 200 that is available during the target charging time and is less than a preset distance from the target location. Then, it further selects a second group of charging devices from the first group (including charging devices powered by mains electricity and / or charging devices powered by home storage devices with remaining power greater than a preset power). Then, based on the reference electricity price and additional charges of each charging device in the second group during the target charging time, it determines the reference charging cost for each charging device during the target charging time, and further determines the target charging device from the second group based on the determined reference charging cost. Finally, it sends the location information of the target charging device to the client device 300.

[0049] Specifically, the charging devices included in the first charging device group may be: among multiple charging devices, the charging device that is idle during the target charging time and is less than a preset distance from the target location; the charging devices included in the second charging device group may be: among the first charging devices, the charging device powered by mains power, and / or the charging device powered by a home storage device and the remaining power of the home storage device is greater than a preset power.

[0050] The charging device 200 can be, for example, a charging pile, a charging pile wall box, or a wireless charging device for electric vehicles, such as a ground induction plate; the communication connection between the management device 100 and the charging device 200 can be wired or wireless, and no specific restrictions are imposed here.

[0051] Furthermore, in specific implementations, if the charging devices 200 are categorized by their power source, the multiple charging devices 200 included in the charging device management system 10 can specifically include at least one of the following types: charging devices powered by mains electricity, devices powered by household energy storage devices, and charging devices that can be powered by both mains electricity and household energy storage devices. Specifically, household energy storage devices can be the aforementioned commercial and industrial energy storage cabinets, household energy storage devices, integrated household energy storage units, etc. Physically, the charging devices 200 and household energy storage devices can be integrated, or they can be installed separately; no specific restrictions are placed here. When the charging devices 200 and household energy storage devices are integrated, the charging device 200 can specifically be an energy storage charging pile.

[0052] Based on this, see Figure 1b In practical applications, the charging device management system 10 may also include a home storage device 400 and a mains power platform 500. Figure 1b The dashed lines indicate the communication connections between devices, while the solid lines indicate the power loop connections between devices.

[0053] from Figure 1b As can be seen, the management device 100 can directly communicate with the communication module installed inside the charging device 200 to obtain information such as the location and electricity price of the charging device 200. Alternatively, for the charging device 200 powered by mains electricity, the management device 100 can also obtain information such as the electricity price and location of the charging device from the mains electricity platform 500. For the charging device 200 powered by the storage device 400, the management device 100 can also obtain information such as the electricity price, location, and remaining power of the storage device 400 from the storage device 400. Correspondingly, for the charging device 200 that can be powered by both mains electricity and the storage device 400, the management device 100 can obtain information such as the electricity price and location of the charging device 200 when powered by mains electricity from the mains electricity platform 500, and can also obtain information such as the electricity price, location, and remaining power of the storage device 400 when powered by the storage device 400 from the storage device 400.

[0054] As can be seen from the embodiments of this application, the management device can automatically determine a first group of charging devices from multiple charging devices based on the target charging time and target location carried in the charging request. Then, it further determines a second group of charging devices from the first group, which is powered by mains electricity and / or by a user storage device with a remaining power of more than a preset power level, where the preset power level is determined based on the target charging amount carried in the charging request. Afterward, the management device filters out suitable target charging devices based on the electricity price and additional charges of the second group of charging devices and pushes the location information of the target charging devices to the client device from which the charging request originated. This helps users quickly determine charging devices that meet their needs and are reasonably priced, and provides users with location information, eliminating the need for users to search for and select charging devices themselves, saving users time and money, and improving the intelligence of charging device recommendations.

[0055] It should be noted that, in practical applications, the devices in the charging device management system 10 are comparable to... Figure 1a and Figure 1b More or less, no specific limit is set here, for example Figure 1a The number of charging devices 200 can be greater than 3. Furthermore, the communication connection method between the devices in the charging device management system 10 is not limited to... Figure 1a and Figure 1b In the example, any two devices in the charging device management system 10 can communicate with each other.

[0056] Additionally, please see Figure 1c This application provides an energy storage system including a home energy storage device, and the application of the energy storage system in a home energy storage scenario is used as an example for illustration.

[0057] This application provides a residential energy storage system, which includes a power conversion device 2 (photovoltaic panel), a first user load 3 (streetlight), a second user load 4 (e.g., household appliances such as air conditioners), and an energy storage device 1. The energy storage device 1 is a small energy storage box that can be wall-mounted to an outdoor wall. Specifically, the photovoltaic panel converts solar energy into electrical energy during periods of low electricity prices. The energy storage device 1 stores this electrical energy and supplies it to streetlights and household appliances during peak electricity prices, or provides power during power outages. The residential energy storage device 400 in this embodiment can be this energy storage device 1.

[0058] Furthermore, the structure of the management equipment in this application can be as follows: Figure 1d As shown, the management device may include a processor 110, a memory 120, a communication interface 130, and one or more programs 121. The one or more programs 121 are stored in the memory 120 and configured to be executed by the processor 110. The one or more programs 121 include instructions for performing any step of the management device in the above method embodiments. The communication interface 130 is used to support communication between the management device and other devices. In specific implementations, the processor 110 is used to execute any step performed by the management device in the following method embodiments, and when performing data transmission such as sending, the communication interface 130 can be selectively invoked to complete the corresponding operation. It should be noted that the above schematic diagram of the management device is only an example; the actual components included may be more or fewer, and this is not a unique limitation.

[0059] Please see Figure 2a , Figure 2a This is a flowchart illustrating a charging device recommendation method provided in an embodiment of this application. This charging device recommendation method can be applied to, for example... Figure 1a or Figure 1b The charging device management system shown includes the management device and multiple charging devices, such as... Figure 2a As shown, the recommended method for this charging device includes the following steps:

[0060] Step 201: Receive a charging request from the client device carrying target demand information.

[0061] The target demand information is used to indicate the target charging time, target location, and target charging amount.

[0062] The target charging time may include at least one of the following: charging start time, charging duration, and charging end time; the target location is the vehicle charging location desired by the user.

[0063] In practice, the client device can directly receive the target charging time, target location, and target charging amount input or selected by the user, and generate corresponding target demand information to send to the management device. Alternatively, considering that multiple charging needs of the same user may be consistent, the management device can store the association between the user account identifier and the preset demand information. Thus, the target demand information can include the user account identifier. After receiving the user account identifier, the management device can query the association to directly obtain the preset demand information. This preset demand information can be a combination of preset charging time, preset charging location, and preset charging amount. The management device can directly use the preset charging time, preset charging location, and preset charging amount as the target charging time, target location, and target charging amount.

[0064] In the scenario of non-scheduled charging, where the user sends a charging request immediately when they need to charge, the charging start time can be the time when the charging request is received, and the target location can be the actual location of the vehicle when the charging request is received. In the scenario of scheduled charging, the charging start time indicated by the target demand information is the time that has not yet arrived, and the target location may not be the same as the actual location of the vehicle when the request is sent.

[0065] Furthermore, a user account identifier can also be associated with multiple preset demand information. Different preset demand information can correspond to different vehicle identifiers or vehicle models. After receiving a charging request, the management device can determine the target charging time, target location, and target charging amount from multiple preset demand information based on the user account identifier and vehicle identifier (or vehicle model).

[0066] Step 202: Determine the first charging device group from multiple charging devices based on the target charging time and the target location.

[0067] Wherein, the charging device in the first charging device group is idle during the target charging time, and the distance between the charging device in the first charging device group and the target location is less than a preset distance.

[0068] The first charging device group may include multiple charging devices. Specifically, the charging devices included in the first charging device group may be those charging devices that are idle during the target charging time and whose distance from the target location is less than a preset distance. Furthermore, if the management device determines from the multiple charging devices that the number of charging devices that are idle during the target charging time and whose distance from the target location is less than a preset distance is 1, this charging device can be directly used as the target charging device.

[0069] In practice, the management device can first identify charging devices whose distance to the target location is less than a preset distance from a pool of charging devices. Then, from these charging devices, it can identify those that are idle during the target charging time and group them into the first charging device group. This approach helps reduce data processing volume when a large number of charging devices in the charging device management system are scattered across different locations. Alternatively, the management device can first identify charging devices that are idle during the target charging time from a pool of charging devices. Then, from these idle charging devices, it can identify those whose distance to the target location is less than a preset distance and group them into the first charging device group. This approach helps reduce data processing volume when the proportion of idle charging devices in the charging device management system is relatively small. The specific order can be determined as needed and is not specifically limited here.

[0070] Furthermore, the charging device management system can pre-group multiple charging devices according to their location. Each group is further divided into master devices and slave devices. Master devices can communicate with slave devices to obtain their information. When communicating with multiple charging devices, the management device can simultaneously obtain information from multiple slave devices by communicating with the master devices in each group, reducing the communication load on the management device. When determining the first charging device group, the management device can also decide whether to prioritize filtering idle charging devices or those within a preset distance based on the number of groups or master devices. For example, if the number of groups or master devices is greater than a preset amount, charging devices within a preset distance can be filtered first.

[0071] Furthermore, if none of the multiple charging devices are available during the target charging time and are less than a preset distance from the target location, the management device can also identify a specific number of available charging devices that are closest to the target location as the first group of charging devices. Alternatively, the target demand information can also indicate the remaining battery power of the target vehicle and the vehicle's actual location during the target charging time. The management device can then determine, based on the target vehicle's remaining battery power, actual location, and charging device locations, the charging devices that the target vehicle can reach before its battery runs out, and designate them as the first group of charging devices.

[0072] It is understandable that the charging devices in the first charging device group are matched with the vehicles that need to be charged. The target demand information can also indicate at least one type of the target vehicle that needs to be charged, such as the vehicle type (e.g., electric vehicle, electric bicycle, or electric motorcycle), vehicle model, charging interface, charging protocol, etc. Before determining the first charging device group based on the target charging time and target location, candidate charging devices that can provide charging services to the target vehicle are first screened based on this information, and then the first charging device group is determined from the candidate charging devices, thereby reducing unnecessary consumption of equipment resources.

[0073] Step 203: Determine the second charging device group from the first charging device group.

[0074] The second charging device group includes: a charging device powered by mains power, and / or a charging device powered by a home storage device and whose remaining power is greater than a preset power, wherein the preset power is determined based on the target charging amount.

[0075] Specifically, the charging devices in the second charging device group can be: charging devices powered by mains electricity from the first charging device group, and / or charging devices powered by a home storage device whose remaining power is greater than a preset power level. In other words, the first charging device group includes this second charging device group, and the charging devices in the second charging device group are actually selected from the charging devices in the first charging device group.

[0076] Among them, the charging device powered by mains power can include a charging device powered only by mains power, and a charging device that can be powered by both mains power and can switch to be powered by a home storage device.

[0077] In non-scheduled charging scenarios, the remaining power of the home charging device can be the actual remaining power obtained when a charging request is received. In scheduled charging scenarios, the remaining power can be an estimated amount determined based on the actual remaining power obtained when a charging request is received and the time period during which the charging device is scheduled before the start time of the target charging time. The calculation of the estimated remaining power can be performed directly by the management device, or it can be performed by the charging device or the corresponding home charging device. The management device can then obtain this information directly through communication with the charging device or the home charging device.

[0078] Step 204: Determine the reference charging cost for each charging device during the target charging time based on the reference electricity price and additional charges for each charging device in the second charging device group during the target charging time.

[0079] The additional fees include at least one of the following: parking fees and charging service fees.

[0080] In specific implementation, if the management device determines from the first charging device group that the number of charging devices powered by mains electricity and / or powered by a user storage device with a remaining power greater than a preset power is one, it can directly designate that charging device as the target charging device. Of course, in other embodiments, if the number of charging devices determined in the first charging device group to be powered by mains electricity and / or powered by a user storage device with a remaining power greater than a preset power is one, step 204 can also be executed, but step 205 is not executed. Therefore, when sending the location information of the target charging device to the client device, the charging reference fee of the target charging device can also be sent to the client device, increasing the richness of the push information.

[0081] For charging devices that can be powered by either mains electricity or by a user storage device, the reference electricity price can include two parts: the mains electricity price and the user storage electricity price. If the remaining power of the user storage device is not less than the preset power, the management equipment can calculate the price of the charging device using only mains electricity and the price of the charging device using only the user storage device, and determine the lower price as the charging reference cost. If the remaining power of the user storage device is less than the preset power, the management equipment can calculate the price of the charging device using only mains electricity and the price of the charging device using all the remaining power of the user storage device and continuing to use mains electricity, and select the lower price as the charging reference cost.

[0082] Step 205: Determine the target charging device from the second group of charging devices based on the charging reference cost of each charging device.

[0083] The management equipment can sort the second charging device groups according to the charging reference cost, and determine one or more second charging device groups with the lowest charging reference cost as target charging devices. For example, if multiple charging devices have the same and lowest reference cost, the charging device closest to the target location among the multiple charging devices with the same and lowest reference cost can be determined as the target charging device, or all of the multiple charging devices with the same and lowest reference cost can be used as target charging devices.

[0084] Step 206: Send the location information of the target charging device to the client device.

[0085] In practice, after receiving confirmation from the user regarding a target charging device, the management device can update the reserved time slot for that target charging device based on the target charging time. Specifically, when there are multiple target charging devices, the confirmation information can carry the device identifier of the target charging device selected by the user. The management device can then determine which target charging device's reserved time slot to update based on the device identifier.

[0086] In specific implementation, the management device may send interface data for displaying a recommended charging device interface to the client device. The location information of the target charging device may be included in this interface data, wherein, referring to Figure 2b The charging device recommendation interface can display the addresses of one or more target charging devices, their distance from the target location, estimated charging costs, images of the charging device environment, power supply type, charging power, and other information. It also displays a confirmation button. When the user clicks the button corresponding to a charging device, if it's not a scheduled charge, they will be directly redirected to the navigation interface for the selected charging device; if it's a scheduled charge, they will be redirected to the order interface, which displays the confirmed target charging time and the location of the selected charging device. This is understandable. Figure 2b The charging device recommendation interface shown in the image is for illustrative purposes only. In actual applications, the content displayed on the charging device recommendation interface may differ from the actual interface. Figure 2b The options differ; for example, environmental images can be omitted, and basic environmental information can be described in text or video instead. Alternatively, the charging reference cost can be further broken down into electricity price and additional charges. No specific restrictions are imposed here.

[0087] As can be seen from the embodiments of this application, the management device can automatically determine a first group of charging devices from multiple charging devices based on the target charging time and target location carried in the charging request. Then, it further determines a second group of charging devices from the first group, which is powered by mains electricity and / or by a user storage device with a remaining power of more than a preset power level, where the preset power level is determined based on the target charging amount carried in the charging request. Afterward, the management device filters out suitable target charging devices based on the electricity price and additional charges of the second group of charging devices and pushes the location information of the target charging devices to the client device from which the charging request originated. This helps users quickly determine charging devices that meet their needs and are reasonably priced, and provides users with location information, eliminating the need for users to search for and select charging devices themselves, saving users time and money, and improving the intelligence of charging device recommendations.

[0088] In one possible example, the target charging time includes: a target start time and a target charging duration. Determining the charging reference fee for each charging device during the target charging time based on the reference electricity price and the additional charges for each charging device includes: obtaining a target user identifier corresponding to the charging request; determining whether the target user identifier has an associated charging history; if not, determining the charging reference fee based on the reference electricity price, the additional charges, and the target charging duration; if yes, obtaining the charging history associated with the target user identifier, the charging history including: the time difference between the charging completion time and the charging device reset time; determining a first reference fee based on the reference electricity price, the additional charges, and the target charging duration; determining a second reference fee based on the additional charges and the time difference; and determining the charging reference fee based on the first reference fee and the second reference fee.

[0089] The charging device reset time could be, for example, the time it takes for the charging gun to return to its original position or the time it takes for the vehicle to leave the charging parking space. The charging reference fee could be the sum of a first reference fee and a second reference fee.

[0090] In practice, the management device can first obtain the charging history associated with the user identifier, and then filter out the charging history associated with the target vehicle. For example, the management device can use the time difference in the most recent charging history as the time difference for calculating the second reference fee, or it can use the average of the time differences in the most recent third preset number of charging history as the time difference for calculating the second reference fee, or it can use the time difference with the largest value in the most recent fourth preset number of charging history as the time difference for calculating the second reference fee.

[0091] As can be seen, in this example, the management device can obtain the user's target associated charging history, and calculate the second reference cost of the charging device for the target charging time based on the time difference between the charging completion time and the charging device reset time in the charging history and the additional cost of the charging device. Then, it calculates the first reference cost of the charging device for the target charging time based on the reference electricity price, the additional cost, and the target charging duration. Finally, it determines the charging reference cost of the charging device based on the first and second reference costs, which helps to improve the matching degree between the determined charging device cost and the user's actual habits and improve the accuracy of the charging device recommendation.

[0092] In one possible example, the additional charges include parking fees, charging service fees, and demurrage fees; determining the first reference fee based on the reference electricity price, the additional charges, and the target charging duration includes: determining the first reference fee based on the reference electricity price, the parking fees, the charging service fees, and the target charging duration; determining the second reference fee based on the additional charges and the time difference includes: determining the second reference fee based on the parking fees, the demurrage fees, and the time difference.

[0093] Specifically, the demurrage fee refers to an additional charge levied by the charging station operator when a vehicle is not retrieved within the stipulated time after charging, thus preventing other users from using the charging station and affecting its normal operation. This demurrage fee is typically related to the length of time the vehicle remains unclaimed after charging. For example, the charging station operator can set a demurrage fee unit price per unit time, and the management equipment can then determine the total overdue demurrage fee based on the time difference and this unit price.

[0094] Furthermore, the management equipment can determine the total electricity price based on the reference electricity price and the target charging duration, and the total parking fee based on the target charging duration and parking fee. Then, the sum of the total electricity price, total parking fee, and charging service fee is calculated to obtain the first reference fee. An overtime parking fee can be determined based on the time difference and parking fee, and a total overtime demurrage fee can be determined based on the time difference and demurrage fee. Finally, the sum of the overtime parking fee and the total overtime demurrage fee is calculated to obtain the second reference fee.

[0095] When calculating the total electricity price, if the target charging duration includes multiple time periods with different reference electricity prices, the total electricity price for each time period can be determined based on the reference electricity price for each time period, and the sum of the multiple total electricity prices for each time period can be calculated to obtain the total electricity price.

[0096] As can be seen, in this example, the management device determines the first reference fee based on the reference electricity price, parking fee, and charging service fee, and determines the second reference fee based on the time difference, parking fee, and demurrage fee, which helps to improve the accuracy of the charging reference fee.

[0097] In one possible example, the preset power level is determined as follows: A first number of mains-powered charging devices in the first charging device group is obtained; a second number of charging devices in the first charging device group are powered by home storage devices and have a remaining power level greater than the target charging level is obtained; it is determined whether the sum of the first number and the second number is greater than a first preset number; if yes, the target charging level is determined to be the preset power level; if no, the target charging level is adjusted according to a preset ratio to obtain the preset power level, where the preset ratio is less than 1.

[0098] Specifically, if the preset ratio is less than 1, the preset charge amount is set to be less than the target charge amount when the sum of the first quantity and the second quantity is not greater than the first preset quantity. For example, if the target charge amount is 100 units of electricity, and the preset ratio is 0.9, then the preset charge amount could be 90 units of electricity.

[0099] In this possible example, the target demand information is also used to indicate the remaining battery power of the target vehicle, and the preset ratio is determined based on the remaining battery power of the target vehicle. The lower the remaining battery power of the target vehicle, the higher the preset ratio.

[0100] Specifically, the remaining battery power of the target vehicle can be the ratio of the vehicle's remaining battery capacity to its total battery capacity. The management device can preset multiple ranges of these ratios and their corresponding relationships. By querying this relationship, the preset ratio corresponding to the target vehicle's remaining battery power can be obtained. Alternatively, the remaining battery power of the target vehicle can be directly the vehicle's remaining battery capacity. The management device can also preset multiple ranges of these remaining battery capacity and their corresponding relationships. By querying this relationship, the preset ratio corresponding to the target vehicle's remaining battery power can be obtained.

[0101] In addition, in other examples, the value of the preset ratio can also be a value obtained from user input or selection by the client device.

[0102] As can be seen, in this example, the management device obtains the first number of mains-powered charging devices in the first charging device group and the second number of charging devices powered by household storage devices in the first charging device group and whose remaining power is greater than the target charging amount. When the sum is greater than the first preset number, the target charging amount is determined as the preset power. When the sum is not greater than the first preset number, the target charging amount is adjusted according to a preset ratio less than 1 to obtain the preset power. This helps to improve the flexibility of determining the preset power.

[0103] In one possible example, determining the first charging device group from the plurality of charging devices includes: determining a third charging device group from the first charging device group that is available during the target charging time and is less than the preset distance from the target location; determining whether a fourth charging device group exists in the third charging device group based on the positions of the charging devices in the third charging device group, the target location, and the target charging time, the fourth charging device group including: charging devices whose traffic routes to the target location are more congested than a preset congestion level during the target charging time; if yes, determining the charging devices in the third charging device group other than the fourth charging device group as the second charging device group; if no, determining the third charging device group as the first charging device group.

[0104] The third and fourth charging device groups may each include one or more charging devices. Specifically, the third charging device group may include: among the multiple charging devices, the charging device that is idle during the target charging time and is less than a preset distance from the target location. The fourth charging device group may include: among the third charging devices, the charging device whose traffic route to the target location is more congested than a preset congestion level during the target charging time.

[0105] The number of charging devices in the third charging device group is equal to the sum of the number of charging devices in the fourth charging device group and the number of charging devices in the first charging device group. In other words, when determining the first charging device group, charging devices that are available during the target charging time and are less than a preset distance from the target location are first selected from multiple charging devices to form the third charging device group. Then, charging devices in the third charging device group whose traffic flow to the target location is more congested than a preset level during the target charging time (i.e., the fourth charging device group) are further eliminated. The remaining charging devices in the third charging device group can then be used as the first charging device group.

[0106] In specific implementation, if the number of charging devices in the third charging device group is 1, then one charging device in the third charging device group can be directly identified as the target charging device. Only when the number of charging devices in the third charging device group is greater than 1, the first charging device group is further identified from the third charging device group. In addition, if all charging devices in the third charging device group are identified as the fourth charging device group, a specific number of charging devices with the lowest congestion level in the fourth charging device group can be identified as the first charging device group, or all charging devices in the third charging device group can be directly identified as the first charging device group.

[0107] The level of congestion can be determined based on information obtained from service platforms such as traffic management platforms or navigation platforms. For example, the management device can obtain traffic congestion marker information reported by the vehicle route within a recent preset time period, coinciding with the target charging time, from the navigation platform. If the number of traffic congestion markers uploaded to a certain vehicle route within the target charging time period exceeds a preset number, the congestion level can be determined to be higher than the preset congestion level. Alternatively, in other examples, the congestion marker information recorded by the service platform includes a congestion level determined based on the vehicle speed of the road segment per unit time, with lower speeds indicating higher congestion levels. Therefore, if the traffic congestion marker information includes more than a sixth preset number of markers with congestion levels higher than the preset level, the congestion level can also be determined to be higher than the preset congestion level.

[0108] In addition, in practical applications, the management device can also obtain the building category of the buildings in the area where the target location is located. The building category may include, for example, residential buildings, schools, industrial parks, etc. The management device can determine whether it is necessary to select a fourth charging device group from the third charging device group based on the building category and the target charging time. For example, if the building category of the target location is an industrial park and the charging start time of the target time is 8:30 am, which is the peak traffic period for this type of building, the management device can perform the step of determining whether there is a fourth charging device group in the third charging device group based on the location of the third charging device group, the target location, and the target charging time. Otherwise, the third charging device group can be directly identified as the first charging device group.

[0109] In this example, the management device first identifies a third charging device group from the first charging device group that is idle during the target charging time and is less than a preset distance from the target location. Then, based on the location of the third charging device group, the target location, and the target charging time, it determines whether a fourth charging device group exists in the third charging device group whose congestion level on the vehicle route to the target location is higher than a preset congestion level during the target charging time. If such a fourth charging device group exists, the charging devices in the third charging device group other than the fourth charging device group are designated as the second charging device group. Otherwise, the third charging device group is designated as the second charging device group. Since the time periods when congestion may occur in different locations are relatively fixed, the management device further filters the charging devices based on the congestion level of the vehicle route. For example, in cases where users need to charge their vehicles during the morning rush hour, this helps to avoid congestion affecting user charging and further improves the intelligence of the charging device recommendation.

[0110] In this possible example, the target demand information also includes the target vehicle type, which includes: electric vehicle, electric bicycle, or electric motorcycle. Determining whether a fourth charging device group exists in the third charging device group based on the location of the charging devices in the third charging device group, the target location, and the target charging time includes: when the target vehicle type is an electric vehicle, determining whether a fourth charging device group exists in the third charging device group based on the location of the charging devices in the third charging device group, the target location, and the target charging time; when the target vehicle type is an electric bicycle or electric motorcycle, determining whether the number of charging devices in the third charging device group is greater than a second preset number; if yes, determining that the third charging device group is the first charging device group; if no, determining whether a fourth charging device group exists in the third charging device group based on the location of the charging devices in the third charging device group, the target location, and the target charging time.

[0111] In practice, considering that road congestion has a relatively small impact on the traffic efficiency of electric bicycles or electric motorcycles, the management equipment can distinguish between electric vehicles and electric bicycles or electric motorcycles. When the number of charging devices for electric bicycles or electric motorcycles in the third charging device group is large, the congestion level of the vehicle route will no longer be assessed, thereby reducing the amount of data processing.

[0112] As can be seen in this example, when the target vehicle type is an electric vehicle, the management device determines whether there is a fourth charging device group in the third charging device group based on the location of the third charging device group, the target location, and the target charging time; when the target vehicle type is an electric bicycle or an electric motorcycle, it determines whether the number of charging devices in the third charging device group is greater than the second preset number; if so, the third charging device group is determined to be the second charging device group; if not, it determines whether there is a fourth charging device group in the third charging device group based on the location of the charging devices in the third charging device group, the target location, and the target charging time. This helps to improve the flexibility of charging device recommendation.

[0113] Please see Figure 3a , Figure 3a This is a schematic diagram of the composition structure of a recommended charging device according to an embodiment of this application, which can be applied to, for example... Figure 1a or Figure 1b The charging device management system shown includes a management device and multiple charging devices. The charging device recommendation device 30 includes:

[0114] The receiving unit 301 is used to receive a charging request from a client device carrying target demand information, wherein the target demand information is used to indicate the target charging time, target location and target charging amount;

[0115] The first determining unit 302 is used to determine a first charging device group from the plurality of charging devices according to the target charging time and the target location, wherein the charging devices in the first charging device group are idle during the target charging time, and the distance between the charging devices in the first charging device group and the target location is less than a preset distance.

[0116] The second determining unit 303 is used to determine a second charging device group from the first charging device group. The second charging device group includes: a charging device powered by mains power, and / or a charging device powered by a home storage device and whose remaining power is greater than a preset power, wherein the preset power is determined based on the target charging amount.

[0117] The third determining unit 304 is used to determine the charging reference cost of each charging device during the target charging time based on the reference electricity price and additional costs of each charging device in the second charging device group during the target charging time. The additional costs include at least one of the following: parking fees and charging service fees.

[0118] The fourth determining unit 305 is used to determine the target charging device from the second group of charging devices based on the charging reference cost of each charging device.

[0119] The sending unit 306 is used to send the location information of the target charging device to the client device.

[0120] In one possible example, the target charging time includes: a target start time and a target charging duration. The fourth determining unit 305 is specifically used to: obtain the target user identifier corresponding to the charging request; determine whether the target user identifier has an associated charging history; if not, determine the charging reference fee based on the reference electricity price, the additional fee, and the target charging duration; if yes, obtain the charging history associated with the target user identifier, the charging history including: the time difference between the charging completion time and the charging device reset time; determine a first reference fee based on the reference electricity price, the additional fee, and the target charging duration; determine a second reference fee based on the additional fee and the time difference; and determine the charging reference fee based on the first reference fee and the second reference fee.

[0121] In one possible example, the additional charges include parking fees, charging service fees, and demurrage fees; regarding the determination of the first reference fee based on the reference electricity price, the additional charges, and the target charging duration, the fourth determining unit 305 is specifically configured to: determine the first reference fee based on the reference electricity price, the parking fees, the charging service fees, and the target charging duration; regarding the determination of the second reference fee based on the additional charges and the time difference, the fourth determining unit 305 is specifically configured to: determine the second reference fee based on the parking fees, the demurrage fees, and the time difference.

[0122] In one possible example, the preset power level is determined as follows: A first number of mains-powered charging devices in the first charging device group is obtained; a second number of charging devices in the first charging device group are powered by home storage devices and have a remaining power level greater than the target charging level is obtained; it is determined whether the sum of the first number and the second number is greater than a first preset number; if yes, the target charging level is determined to be the preset power level; if no, the target charging level is adjusted according to a preset ratio to obtain the preset power level, where the preset ratio is less than 1.

[0123] In one possible example, the target demand information is also used to indicate the remaining battery power of the target vehicle, and the preset ratio is determined based on the remaining battery power of the target vehicle. The lower the remaining battery power of the target vehicle, the higher the preset ratio.

[0124] In one possible example, the first determining unit 302 is specifically configured to: determine from the first charging device group a third charging device group that is idle during the target charging time and whose distance from the target location is less than the preset distance; determine, based on the location of the charging devices in the third charging device group, the target location, and the target charging time, whether there is a fourth charging device group in the third charging device group, the fourth charging device group including: charging devices whose traffic route to the target location is more congested than a preset congestion level during the target charging time; if yes, determine that the charging devices in the third charging device group other than the fourth charging device group are the second charging device group; if no, determine that the third charging device group is the first charging device group.

[0125] In one possible example, the target demand information also includes a target vehicle type, which includes: an electric vehicle, an electric bicycle, or an electric motorcycle. Regarding determining whether a fourth charging device group exists in the third charging device group based on the location of the charging devices in the third charging device group, the target location, and the target charging time, the first determining unit 302 is specifically configured to: when the target vehicle type is an electric vehicle, determine whether a fourth charging device group exists in the third charging device group based on the location of the charging devices in the third charging device group, the target location, and the target charging time; when the target vehicle type is an electric bicycle or an electric motorcycle, determine whether the number of charging devices in the third charging device group is greater than a second preset number; if yes, determine that the third charging device group is the first charging device group; if no, determine whether a fourth charging device group exists in the third charging device group based on the location of the charging devices in the third charging device group, the target location, and the target charging time.

[0126] In the case of using integrated units, a schematic diagram of the composition structure of another recommended charging device provided in the embodiments of this application is shown below. Figure 3b As shown. In Figure 3bThe charging device recommendation device includes a processing module 310 and a communication module 311. The processing module 310 controls and manages the operation of the charging device recommendation device, for example, the steps performed by the receiving unit 301, the first determining unit 302, the second determining unit 303, the third determining unit 304, the fourth determining unit 305, and the sending unit 306, and / or other processes described in this application. The communication module 311 supports interaction between the charging device recommendation device and other devices. Figure 3b As shown, the charging device recommendation device may further include a storage module 312, which is used to store the program code and data of the charging device recommendation device.

[0127] The processing module 310 can be a processor or controller, such as a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an ASIC, an FPGA, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc. The communication module 311 can be a transceiver, RF circuitry, or a communication interface, etc. The storage module 312 can be a memory.

[0128] All relevant content in each scenario involved in the above method embodiments can be referenced from the functional descriptions of the corresponding functional modules, and will not be repeated here. All of the above-mentioned recommended charging devices can perform the above-described... Figure 2a The steps performed by the management device in the recommended method for the charging device shown are as follows.

[0129] This application also provides a computer storage medium storing a computer program for electronic data interchange, which causes a computer to perform some or all of the steps of any of the methods described in the above method embodiments, wherein the computer includes a management device.

[0130] This application also provides a computer program product, which includes a computer program operable to cause a computer to perform some or all of the steps of any of the methods described in the above method embodiments.

[0131] The computer program product may be a software installation package, and the aforementioned computer includes management devices.

[0132] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and units involved are not necessarily essential to this application.

[0133] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0134] In the several embodiments provided in this application, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of the units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical or other forms.

[0135] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of the embodiments of this application, depending on actual needs.

[0136] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0137] If the aforementioned integrated units are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage device (CMD). Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned memory includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0138] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage device, which may include: a flash drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0139] The embodiments of this application have been described in detail above. Specific examples have been used in this application to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for recommending a charging device, characterized in that, The method includes: Receive a charging request from a client device carrying target demand information, wherein the target demand information is used to indicate the target charging time, target location, and target charging amount; Based on the target charging time and the target location, a first charging device group is determined from multiple charging devices, wherein the charging devices in the first charging device group are idle during the target charging time, and the distance between the charging devices in the first charging device group and the target location is less than a preset distance. A second charging device group is determined from the first charging device group, the second charging device group comprising: a charging device powered by mains power, and / or a charging device powered by a home storage device and the remaining power of the home storage device is greater than a preset power, the preset power being determined based on the target charging amount; Based on the reference electricity price and additional charges for each charging device in the second charging device group during the target charging time, the reference charging cost for each charging device during the target charging time is determined, wherein the additional charges include at least one of the following: parking fee and charging service fee. Based on the charging reference cost of each charging device, a target charging device is determined from the second group of charging devices; Send the location information of the target charging device to the client device; The preset power level is determined as follows: A first number of mains-powered charging devices in the first charging device group is obtained; a second number of charging devices in the first charging device group are powered by home storage devices and have a remaining power level greater than the target charging level is obtained; it is determined whether the sum of the first number and the second number is greater than a first preset number; if yes, the target charging level is determined to be the preset power level; if no, the target charging level is adjusted according to a preset ratio to obtain the preset power level, where the preset ratio is less than 1.

2. The method according to claim 1, characterized in that, The target charging time includes: a target start time and a target charging duration. Determining the reference charging cost for each charging device during the target charging time, based on the reference electricity price and the additional charges for each charging device, includes: Obtain the target user identifier corresponding to the charging request; Determine whether the target user identifier has an associated charging history; If not, the charging reference fee shall be determined based on the reference electricity price, the additional charges, and the target charging duration; If so, obtain the charging history associated with the target user identifier, the charging history including: the time difference between the charging completion time and the charging device reset time; The first reference fee is determined based on the reference electricity price, the additional charges, and the target charging duration. The second reference cost is determined based on the additional cost and the time difference. The charging reference cost is determined based on the first reference cost and the second reference cost.

3. The method according to claim 2, characterized in that, The additional charges include parking fees, charging service fees, and demurrage fees; determining the first reference fee based on the reference electricity price, the additional charges, and the target charging duration includes: The first reference fee is determined based on the reference electricity price, the parking fee, the charging service fee, and the target charging duration; The determination of the second reference fee based on the additional cost and the time difference includes: The second reference fee is determined based on the parking fee, the demurrage fee, and the time difference.

4. The method according to claim 1, characterized in that, The target demand information is also used to indicate the remaining battery power of the target vehicle. The preset ratio is determined based on the remaining battery power of the target vehicle. The lower the remaining battery power of the target vehicle, the higher the preset ratio.

5. The method according to claim 1, characterized in that, The step of determining the first charging device group from the plurality of charging devices includes: A third charging device group is determined from the plurality of charging devices, the third charging device group comprising: a charging device that is idle during the target charging time and is at a distance less than the preset distance from the target location; Based on the location of the charging device in the third charging device group, the target location, and the target charging time, it is determined whether there is a fourth charging device group in the third charging device group. The fourth charging device group includes: a charging device whose traffic route to the target location is more congested than a preset congestion level at the target charging time. If so, the charging device in the third charging device group other than the fourth charging device group is determined to be the first charging device group; If not, the third charging device group is identified as the first charging device group.

6. The method according to claim 5, characterized in that, The target demand information also includes the target vehicle type, which includes: electric vehicle, electric bicycle, or electric motorcycle. Determining whether a fourth charging device group exists in the third charging device group based on the location of the charging device in the third charging device group, the target location, and the target charging time includes: When the target vehicle type is an electric vehicle, the presence of the fourth charging device group in the third charging device group is determined based on the location of the charging device in the third charging device group, the target location, and the target charging time. When the target vehicle type is an electric bicycle or an electric motorcycle, determine whether the number of charging devices in the third charging device group is greater than the second preset number; If so, the third charging device group is determined to be the first charging device group; If not, determine whether the fourth charging device group exists in the third charging device group based on the position of the charging device in the third charging device group, the target position, and the target charging time.

7. A charging device recommendation device, characterized in that, The recommended charging device includes: A receiving unit is configured to receive a charging request from a client device carrying target demand information, wherein the target demand information is used to indicate the target charging time, target location, and target charging amount. The first determining unit is configured to determine a first charging device group from a plurality of charging devices based on the target charging time and the target location, wherein the charging devices in the first charging device group are idle during the target charging time, and the distance between the charging devices in the first charging device group and the target location is less than a preset distance. The second determining unit is configured to determine a second charging device group from the first charging device group, the second charging device group comprising: a charging device powered by mains power, and / or a charging device powered by a home storage device and the remaining power of the home storage device is greater than a preset power, the preset power being determined based on the target charging amount; The third determining unit is used to determine the charging reference cost of each charging device during the target charging time based on the reference electricity price and additional costs of each charging device in the second charging device group during the target charging time. The additional costs include at least one of the following: parking fees and charging service fees. The fourth determining unit is used to determine the target charging device from the second group of charging devices based on the charging reference cost of each charging device. A sending unit is used to send the location information of the target charging device to the client device; The preset power level is determined as follows: A first number of mains-powered charging devices in the first charging device group is obtained; a second number of charging devices in the first charging device group are powered by home storage devices and have a remaining power level greater than the target charging level is obtained; it is determined whether the sum of the first number and the second number is greater than a first preset number; if yes, the target charging level is determined to be the preset power level; if no, the target charging level is adjusted according to a preset ratio to obtain the preset power level, where the preset ratio is less than 1.

8. A management device, characterized in that, The management device includes: One or more processors; One or more memories are used to store programs. The one or more memories and the program are configured such that the one or more processors control the device to perform the steps of the method as described in any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, in, The computer-readable storage medium stores a computer program for electronic data interchange, wherein the computer program causes a computer to perform the steps of the method as described in any one of claims 1-6.

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