A charging control method, an edge server, a charging system, and a storage medium

Abstract

The present application relates to the technical field of new energy charging, in particular to a charging control method, an edge server, a charging system and a storage medium. The charging control method is applied to the edge server, the edge server is configured with an intelligent charging mode, and the method comprises the following steps: obtaining charging interaction information sent by a target charging pile, judging whether the intelligent charging mode is started or not to obtain a first judgment result, judging whether the network between the edge server and a cloud server is normal or not to obtain a second judgment result, and controlling the charging of the target charging pile according to the first judgment result, the second judgment result and the charging interaction information. Therefore, on the one hand, the embodiment can control the charging pile to perform intelligent charging when the cloud server does not support intelligent charging by configuring the intelligent charging mode in the edge server, and on the other hand, the embodiment can control the charging pile to charge in combination with the starting condition and the network condition of the intelligent charging mode of the edge server, so that the charging pile can be ensured to charge normally.

Description

Technical Field

[0001] This invention relates to the field of new energy charging technology, specifically to a charging control method, an edge server, a charging system, and a storage medium. Background Technology

[0002] A charging station is a device used to charge new energy vehicles. With the continuous promotion and application of new energy vehicles, the demand for charging stations is also growing rapidly. Currently, charging stations are typically connected to cloud servers via a network. These cloud servers are usually deployed by charging station control service providers to centrally control charging stations, order data, and billing services. However, when the network is interrupted, the charging of electric vehicles by charging stations will be affected, or even impossible. Summary of the Invention

[0003] One objective of this invention is to provide a charging control method, an edge server, a charging system, and a storage medium to solve the technical problem that charging piles cannot charge electric vehicles normally when the network between the charging pile and the cloud server is interrupted.

[0004] In a first aspect, embodiments of the present invention provide a charging control method applied to an edge server, the edge server being configured with an intelligent charging mode, the method comprising:

[0005] Obtain the charging interaction information sent by the target charging pile;

[0006] Determine whether the intelligent charging mode is enabled, and obtain a first determination result;

[0007] Determine whether the network between the edge server and the cloud server is normal, and obtain a second determination result;

[0008] The charging of the target charging pile is controlled based on the first judgment result, the second judgment result, and the charging interaction information.

[0009] Optionally, the edge server and multiple charging piles form a local area network, and the step of controlling the charging of the target charging pile according to the first judgment result, the second judgment result, and the charging interaction information includes:

[0010] In response to the first judgment result of enabling smart charging mode and the second judgment result of network normality, the load information of each charging pile in the local area network is obtained, the charging interaction information is filtered to obtain the first interaction information and the second interaction information, the charging of the target charging pile is controlled according to the load information and the first interaction information, and the second interaction information is forwarded to the cloud server. The first interaction information is the interaction information related to smart charging, and the second interaction information is the interaction information required by the cloud server to complete other functions besides smart charging.

[0011] Optionally, the edge server and multiple charging piles form a local area network, and the step of controlling the charging of the target charging pile according to the first judgment result, the second judgment result, and the charging interaction information includes:

[0012] In response to the first judgment result of enabling the smart charging mode and the second judgment result of network interruption, the load information of each charging pile in the local area network is obtained, the charging interaction information is filtered to obtain the third interaction information and the fourth interaction information, and the charging of the target charging pile is controlled according to the load information and the third interaction information. The third interaction information is the interaction information related to smart charging, and the fourth interaction information is the interaction information required by the edge server to complete other functions besides smart charging.

[0013] Optionally, controlling the charging of the target charging pile based on the first judgment result, the second judgment result, and the charging interaction information includes:

[0014] In response to the first judgment result that the smart charging mode is not enabled and the second judgment result that the network is normal, the charging interaction information is forwarded to the cloud server.

[0015] Optionally, controlling the charging of the target charging pile based on the first judgment result, the second judgment result, and the charging interaction information includes:

[0016] In response to the first judgment result that the smart charging mode is not enabled and the second judgment result that the network is interrupted, the charging interaction information is filtered to obtain the fifth interaction information and the sixth interaction information. The charging of the target charging pile is controlled according to the fifth interaction information. The fifth interaction information is the interaction information related to normal charging, and the sixth interaction information is the interaction information required by the edge server to complete other functions besides normal charging.

[0017] Optionally, the fourth interactive information and / or the sixth interactive information includes charging start time and cumulative charging power, and the charging control method further includes:

[0018] Get the current charging time;

[0019] The current charging cost is determined based on the current charging time, the charging start time, and the cumulative charging power.

[0020] Determine whether the target charging station has stopped charging;

[0021] If charging is stopped, the current charging cost is obtained, and an offline order is generated based on the current charging cost.

[0022] Optionally, the charging control method further includes:

[0023] Determine whether the network between the edge server and the cloud server has returned to normal;

[0024] If the network returns to normal, the offline orders will be uploaded to the cloud server.

[0025] In a second aspect, embodiments of the present invention provide an edge server, including a memory and a processor, the memory being connected to the processor, the processor being configured to execute one or more computer programs stored in the memory, the processor causing the edge server to implement the charging control method as described in the first aspect when executing the one or more computer programs.

[0026] In a third aspect, embodiments of the present invention provide a charging system, comprising:

[0027] Charging stations are configured to communicate with electric vehicles; and

[0028] As described in the second aspect, the edge server is configured to communicate with the charging pile and the cloud server respectively.

[0029] In a fourth aspect, embodiments of the present invention provide a storage medium storing a computer program, the computer program including program instructions that, when executed by a processor, cause the processor to perform the charging control method as described in the first aspect.

[0030] Compared with existing technologies, this invention provides a charging control method, an edge server, a charging system, and a storage medium. The charging control method is applied to an edge server configured with an intelligent charging mode. The method includes: acquiring charging interaction information sent by a target charging pile; determining whether the intelligent charging mode is enabled, obtaining a first determination result; determining whether the network between the edge server and the cloud server is normal, obtaining a second determination result; and controlling the charging of the target charging pile based on the first determination result, the second determination result, and the charging interaction information. Therefore, on the one hand, by configuring an intelligent charging mode on the edge server, this embodiment can control the charging pile to perform intelligent charging even when the cloud server does not support intelligent charging. On the other hand, this embodiment can control the charging pile to charge by combining the enabling status of the intelligent charging mode on the edge server and the network status, ensuring normal charging even if the network is interrupted. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram illustrating an application scenario of a charging system provided by an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of a charging pile provided in an embodiment of the present invention;

[0034] Figure 3 This is a schematic flowchart of a charging control method provided in an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the structure of a charging control device provided in an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of a charging control device according to another embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the structure of a charging control device provided in another embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of the hardware structure of an edge server provided in an embodiment of the present invention. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0040] It should be noted that, unless otherwise specified, the various features in the embodiments of this invention can be combined with each other, all of which are within the protection scope of this invention. Furthermore, although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than the module division in the device or the order in the flowchart. Moreover, the terms "first," "second," and "third" used in this invention do not limit the data or execution order, but only distinguish identical or similar items with essentially the same function and effect.

[0041] This invention provides an application scenario for a charging system. Please refer to [link / reference]. Figure 1 The application scenario includes power grid 100, charging system 200 and electric vehicle 300.

[0042] Power grid 100 is a power network that transmits mains electricity to charging system 200 via transmission lines to supply power to electric vehicle 300. The mains electricity is industrial frequency alternating current (AC), which is typically characterized by voltage, current, and frequency. Generally, the mains electricity transmitted from power grid 100 to charging system 200 is three-phase AC.

[0043] The charging system 200 is a system for charging an electric vehicle 300 to replenish its power. Its working principle is to receive electrical energy from the power grid and then transmit that energy to the electric vehicle 300 via a charging cable to charge it. In some embodiments, such as... Figure 1 As shown, the charging system 200 includes charging piles 201. The number of charging piles 201 in the charging system 200 can be set according to actual needs and is not limited here. The charging piles 201 can be any suitable type of charging pile that can support AC charging, including but not limited to DC charging piles, AC charging piles, and AC / DC integrated charging piles.

[0044] The DC charging station uses direct current (DC) to charge the power battery of electric vehicle 300; this charging method is also known as "fast charging." The DC charging station is electrically connected to the power grid 100, receiving three-phase 380V AC power from the grid and converting it to DC. This DC power is then delivered to the power battery of electric vehicle 300 through a standard DC charging plug and socket, thus achieving DC charging. The power supply characteristics of the DC charging station itself allow it to output sufficient charging power, with a wide range of voltage and current adjustment, enabling rapid charging. The DC charging station also functions as a charger, capable of monitoring and controlling the operating status of the battery being charged in real time, and can also measure the amount of electricity charged.

[0045] AC charging stations can provide power to electric vehicles 300 using single or dual 220VAC / 380VAC AC output interfaces, allowing them to use onboard chargers to charge their power batteries. This charging method is also known as "slow charging." The output power of AC charging stations is typically 5kW (220VAC) / 20kW (380VAC), but the actual charging power is limited by the onboard charger; generally, the onboard charging power for small electric vehicles is between 2 and 3kW. The onboard charger for electric vehicle 300 converts AC power to DC power through filtering and rectification, then stores the DC power in the electric vehicle 300's power battery, thus charging the electric vehicle 300. This charging method is mainly used in small pure electric vehicles.

[0046] The input voltage of an AC / DC integrated charging pile is generally three-phase four-wire 380VAC±15% at a frequency of 50Hz. The charging pile includes a DC output port and an AC output port. The DC output port outputs adjustable DC power to charge the power battery of the electric vehicle 300, with a charging power typically ranging from 10 to 40kW. The AC output port outputs 220VAC (5kW) / 380VAC (20kW) AC power to provide charging power for the on-board charger of the electric vehicle 300. The AC / DC integrated charging pile can provide conventional charging through the AC output port and fast charging through the DC output port. During peak charging hours in the daytime, fast charging is used; at night when there are fewer users, conventional charging can be used for slower charging. The AC / DC integrated charging pile can achieve simultaneous AC and DC charging and interlocked charging. Its modular design facilitates maintenance.

[0047] In some embodiments, the charging pile 201 is configured with one or more charging guns. The charging guns are interface devices connecting the charging pile and the electric vehicle 300, primarily used for charging the electric vehicle 300 by transmitting electrical energy. The charging gun typically has a plug and a connecting cable, one end of which connects to the charging pile, and the other end is inserted into the charging port of the electric vehicle 300. Depending on different charging requirements and technical standards, charging guns can be of different types; in some embodiments, charging guns include fast-charging guns and slow-charging guns.

[0048] Fast charging guns, also known as DC fast charging guns, are typically used at fast charging stations. They have a large power output and can quickly charge the vehicle's power battery.

[0049] Slow charging guns, also known as AC charging guns, are typically used in home charging stations, commercial charging stations, and public charging stations. They have lower power and are suitable for charging with ordinary household power supplies, resulting in a relatively slow charging speed.

[0050] In some embodiments, please refer to Figure 2 The charging pile 201 includes an input filtering circuit 2011, an AC / DC circuit 2012, a DC / DC circuit 2013, an output filtering circuit 2014, an auxiliary power supply 2015, a charging control module 2016, a current detection circuit 2017, a metering module 2018, and a communication module 2019.

[0051] The input filter circuit 2011 is configured to be electrically connected to the power grid 100. The input filter circuit 2011 is used to filter out high-frequency interference signals, thereby reducing conducted interference.

[0052] The AC / DC circuit 2012 is electrically connected to the input filter circuit 2011 and is used to convert the AC power from the power grid 200 into DC power. The AC / DC circuit 2012 can be any circuit used to convert AC power into DC power, including but not limited to a three-phase active PFC (Power Factor Correction) circuit, a three-phase neutral-less Vienna circuit, etc.

[0053] The DC / DC circuit 2013 is electrically connected to the AC / DC circuit 2012 and is used to convert the DC power output from the AC / DC circuit 2012 into a voltage waveform that conforms to the battery charging strategy. The DC / DC circuit 2013 can be any circuit used to convert the DC power output from the AC / DC circuit 2012 into a voltage waveform that conforms to the battery charging strategy, including but not limited to LLC resonant circuits, three-phase interleaved LLC resonant circuits, DAB (dual active bridge converter), bidirectional full-bridge CLLC resonant circuits, three-phase interleaved CLLC resonant circuits, phase-shifted full-bridge circuits, etc.

[0054] The output filter circuit 2014 is electrically connected to the DC / DC circuit 2013 and the electric vehicle 300 respectively. The output filter circuit 2014 is used to filter out the electromagnetic interference generated by the charging pile 201 during operation, to ensure stable communication between the charging pile 201 and the electric vehicle 300, and to avoid charging errors or safety problems caused by interference.

[0055] The auxiliary power supply 2015 is electrically connected to the AC / DC circuit 2012 and is used to convert the DC power output by the AC / DC circuit 2012 into a power supply, which is used to power the charging control module 2016.

[0056] The charging control module 2016 is electrically connected to the AC / DC circuit 2012, the DC / DC circuit 2013 and the auxiliary power supply 2015 respectively, and is used to operate under the power supply of the auxiliary power supply 2015 and control the voltage conversion of the AC / DC circuit 2012 and the DC / DC circuit 2013.

[0057] The current detection circuit 2017 is electrically connected to the output terminal of the DC / DC circuit 2013 to detect the output current of the DC / DC circuit 2013, so as to adjust and control the charging current according to the output current.

[0058] The metering module 2018 is electrically connected to the charging control module 2016. It includes metering, monitoring, and management functions. The metering function is responsible for accurately measuring parameters such as power, voltage, and current during the charging process and feeding the data back to the charging control module 2016 to ensure accurate metering of charging power. The monitoring function is responsible for monitoring the operation of the charging pile 201 in real time, including power, time, and cost, to ensure the normal operation of the charging pile 201. The management function is responsible for managing the charging pile 201, such as setting charging prices, and calculating charging volume and cost, providing data support and business basis for operators.

[0059] The communication module 2019 is electrically connected to the charging control module 2016 and the electric vehicle 300 respectively, and is used to establish communication between the charging control module 2016 and the electric vehicle 300. Based on the established communication, the charging pile 201 can interact with the electric vehicle 300. When the charging pile 201 interacts with the electric vehicle 300, the charging pile 201 and the electric vehicle 300 can send and receive various interactive information.

[0060] In some embodiments, please continue reading Figure 1 The charging system 200 also includes an edge server 202.

[0061] The edge server 202 is communicatively connected to each charging pile 201 of the charging system 200. This communication connection includes both wireless and wired connections. Wireless communication connections include 5G, 4G, 3G, 2G, Wi-Fi, CDMA, CDMA2000, ZigBee, NFC, Bluetooth, RFID, GSM, Infrared (IR), ISM, WiMAX, UWB, or UMTS / 3GPPw / HSDPA, etc. Wired communication connections include various communication connections that transmit information using tangible media such as metal wires and optical fibers. In some embodiments, the edge server 202 communicates with each charging pile 201 via WebSocket. WebSocket is a protocol for full-duplex communication over a single TCP (Transmission Control Protocol) connection. WebSocket simplifies data exchange between the client and server, allowing the server to proactively push data to the client. The edge server 202 can also establish a persistent connection with each charging pile 201 of the charging system 200 for bidirectional data transmission.

[0062] Edge server 202 is a hardware or software system deployed close to the data source (such as a charging station), possessing data storage, computing, and processing capabilities. The role of edge server 202 is to process data and provide services at the network edge, without relying entirely on remote cloud servers. In some embodiments, edge server 202 provides OCPP (Open ChargePoint Protocol) support. OCPP is an open protocol specifically designed for communication between electric vehicle charging stations and charging piles. Promoted by the International Electric Vehicle Charging Network Association, its purpose is to achieve standardized communication between charging piles and charging station management systems, thereby promoting the compatibility, interoperability, and flexibility of charging infrastructure. OCPP can provide cross-vendor, cross-device charging pile management and control functions, ensuring interoperability between charging piles. In some embodiments, edge server 202 is configured with various functions of CSMS (Charging Station Management System), including but not limited to intelligent charging modes, local authentication, order management, and access control.

[0063] In some embodiments, such as Figure 1 As shown, the charging system 200 also includes a cloud server 203.

[0064] The cloud server 203 communicates with the edge server 202 to centrally manage the charging of the charging piles 201 in the charging system 200, including charging control, order data or billing services, etc.

[0065] In some embodiments, the cloud server 203 is configured with various functions of CSMS (Charging Station Management System), including but not limited to intelligent charging mode, cloud authentication, order management, access control, etc.

[0066] In some embodiments, the cloud server 203 and the edge server 202 are connected via WebSocket communication. When the network is normal, that is, when the cloud server 203 and the edge server 202 maintain a WebSocket communication connection, the edge server 202 can act as a data forwarder in the charging system 200. That is, when the charging pile 201 is charging the electric vehicle 300, the edge server 202 obtains various interactive information during the charging process from the charging pile 201 and forwards the various interactive information to the cloud server 203, so that the cloud server 203 can implement various functions of the CSMS (Charging Station Management System) based on the interactive information. When the network is interrupted, that is, when the WebSocket communication connection between the cloud server 203 and the edge server 202 is broken, the edge server 202 can act as a substitute for the cloud server 203 in controlling the charging pile 201 in the charging system 200. That is, when the charging pile 201 is charging the electric vehicle 300, the edge server 202 obtains various interactive information during the charging process from the charging pile 201 and implements various functions of the CSMS based on the various interactive information.

[0067] Overall, the edge server 202 can act as a proxy in the charging system 200, acting as a proxy for the cloud server 203 to control the charging of the charging pile 201.

[0068] In some embodiments, the cloud server 203 supports the OCPP protocol. The cloud server 203 can obtain various types of data sent by the edge server 202 based on the OCPP protocol, such as offline orders.

[0069] In some embodiments, the edge server 202 supports a smart charging mode, which can be turned on or off by the user. The edge server 202 can be configured with any receiving module to receive user instructions and control the smart charging mode to be turned on or off according to the instructions. For example, the receiving module can be a power button; when the power button is pressed, the edge server 202 can receive the button press signal and turn on the smart charging mode accordingly. Alternatively, the receiving module can be a wireless or wired receiving module. The edge server 202 can communicate with external electronic devices via a wireless or wired receiving module, allowing the user to operate the external electronic device to send on or off commands to the edge server 202 via a wireless or wired connection. The edge server 202 then controls the smart charging mode to be turned on or off according to the on or off commands.

[0070] Understandably, if cloud server 203 supports smart charging mode while edge server 202's smart charging mode is disabled, then when the network is normal, cloud server 203 can control charging pile 201 to perform smart charging, thus meeting the smart charging needs of charging pile 201. If cloud server 203 does not support smart charging mode while edge server 202's smart charging mode is enabled, then regardless of network conditions, edge server 202 can control charging pile 201 to perform smart charging, thus meeting the smart charging needs of charging pile 201 even when cloud server 203 does not support smart charging mode.

[0071] In some embodiments, the edge server 202 and each charging pile 201 of the charging system 200 can form a local area network (LAN). A LAN is a network system that connects computer devices located in different physical locations over a range of several kilometers, enabling them to communicate and share resources with each other with the support of network software. The edge server 202 and each charging pile 201 can transmit data to each other via the LAN. The edge server 202 can obtain load information such as the charging power of each charging pile 201 currently charging in the charging system 200 via the LAN. This allows the edge server 202 to operate in intelligent charging mode based on the load information when its intelligent charging mode is activated, and to control the charging piles 201 to perform intelligent charging according to the intelligent charging mode.

[0072] The electric vehicle 300 is communicatively connected to the charging pile 201. The electric vehicle 300 can receive AC or DC power from the charging pile 201. When the electric vehicle 300 receives DC power, it can store the DC power in its power battery to charge the battery. When the electric vehicle 300 receives AC power, it can perform voltage conversion, filtering, and rectification on the AC power to obtain DC power, and then store the DC power in its power battery to charge the battery.

[0073] The electric vehicle 300 can interact with the charging pile 201 during the charging process. During the interaction, the electric vehicle 300 and the charging pile 201 can send and receive various interactive information. In some embodiments, the charging process of the electric vehicle 300 may include a charging parameter configuration stage and a charging stage.

[0074] After the charging pile 201 is physically connected to the electric vehicle 300 and powered on, and the voltage is checked to be normal, the charging parameter configuration stage begins. During this stage, the interactive information exchanged between the electric vehicle 300 and the charging pile 201 includes handshake messages, authentication messages, charging parameter negotiation messages, and charging preparation messages.

[0075] The handshake message is used to establish a communication connection between the charging pile 201 and the battery management system of the electric vehicle 300. The handshake message includes a handshake request message and a handshake response message. The handshake request message is sent by the charging pile 201 to the battery management system of the electric vehicle 300 to determine whether the handshake between the two parties is normal and to indicate that the charging pile 201 is ready to configure charging parameters. After receiving the handshake request message, the battery management system of the electric vehicle 300 sends a handshake response message to the charging pile 201, indicating that the battery management system of the electric vehicle 300 is ready to accept the charging parameter configuration. If the charging pile 201 receives the handshake response message, the charging pile 201 determines that the handshake between the two parties is normal and establishes a communication connection between them.

[0076] The authentication message is used to verify the identity of the charging pile 201. The authentication message includes an authentication request message and an authentication response message. The authentication request message is sent by the charging pile 201 to the battery management system of the electric vehicle 300. The authentication request message includes the identity information of the charging pile 201. After receiving the authentication request message, the battery management system of the electric vehicle 300 sends an authentication response message to the charging pile 201, indicating that the battery management system of the electric vehicle 300 has verified the identity of the charging pile 201. After receiving the authentication response message, the charging pile 201 completes its identity verification.

[0077] The charging parameter negotiation message is used to negotiate charging parameters. The charging parameter negotiation message includes a charging parameter suggestion message and a charging parameter confirmation message. The charging parameter suggestion message is sent by the charging pile 201 to the battery management system of the electric vehicle 300. The charging parameter suggestion message includes the charging parameters suggested by the charging pile 201, such as maximum charging voltage, maximum charging current, minimum charging voltage, minimum charging current, and charging mode. After receiving the charging parameter suggestion message, the battery management system of the electric vehicle 300 sends a charging parameter confirmation message to the charging pile 201, indicating that the battery management system of the electric vehicle 300 confirms the received charging parameters. After receiving the charging parameter confirmation message, the charging pile 201 completes the charging parameter negotiation.

[0078] The charging preparation message is used to indicate that the charging station 201 is ready. The charging preparation message is sent by the charging station 201 to the battery management system of the electric vehicle 300, indicating that the charging station 201 is ready to start charging.

[0079] During the charging phase, the charging pile 201 adjusts the charging voltage and charging current according to the charging requirements of the electric vehicle 300's battery management system to ensure the normal operation of the charging process. The charging interaction information exchanged between the electric vehicle 300 and the charging pile 201 includes charging control messages, charging data messages, and charging fault messages.

[0080] Charging control messages are used to control the charging process. These messages may include a start charging command message, a stop charging command message, and a charging status report message. The start charging command message is sent from the charging pile 201 to the battery management system of the electric vehicle 300 to instruct the battery management system of the electric vehicle 300 to begin charging. The stop charging command message is sent from the charging pile 201 to the battery management system of the electric vehicle 300 to instruct the battery management system of the electric vehicle 300 to stop charging. The charging status report message is sent from the battery management system of the electric vehicle 300 to the charging pile 201 to report the charging status of the battery management system of the electric vehicle 300.

[0081] Charging data messages are used to transmit charging data. These messages include charging voltage / current setting messages and battery voltage / current measurement messages. The charging voltage / current setting message is sent from the charging pile 201 to the battery management system of the electric vehicle 300 to set the charging voltage and charging current values. The battery voltage / current measurement message is sent from the battery management system of the electric vehicle 300 to the charging pile 201 to report the battery voltage and battery current values ​​of the electric vehicle 300.

[0082] Charging fault messages are used to indicate charging-related faults. These messages include charging fault messages and battery fault messages. Charging fault messages are sent from the charging pile 201 to the battery management system of the electric vehicle 300 to indicate charging fault information, while battery fault messages are sent from the battery management system of the electric vehicle 300 to the charging pile 201 to indicate battery fault information.

[0083] Electric vehicles 300 include any vehicle that can be driven by electricity, including but not limited to pure electric vehicles, hybrid electric vehicles, fuel cell vehicles, etc.

[0084] This invention provides a charging control method applied to an edge server as described above. The edge server is configured with an intelligent charging mode. Please refer to [link to relevant documentation]. Figure 3 The charging control methods include:

[0085] S31. Obtain the charging interaction information sent by the target charging pile;

[0086] In this step, the target charging station is a charging station that is currently charging, and the charging interaction information is the interaction information exchanged between the target charging station and the electric vehicle during the charging process. As mentioned above, the charging interaction information may include handshake messages, authentication messages, charging parameter negotiation messages, and charging preparation messages during the charging parameter configuration phase, as well as charging control messages, charging data messages, and charging fault messages during the charging phase.

[0087] S32. Determine whether the smart charging mode is enabled and obtain the first determination result;

[0088] In this step, the first determination result can include whether the smart charging mode is enabled or disabled. As mentioned earlier, the edge server can receive user instructions based on its configured receiving module and control the smart charging mode to be enabled or disabled according to the instructions, thereby determining whether the edge server's smart charging mode is enabled, and thus obtaining the first determination result.

[0089] S33. Determine whether the network between the edge server and the cloud server is normal, and obtain the second judgment result;

[0090] In this step, the second determination result can include whether the network between the edge server and the cloud server is normal or whether the network between the edge server and the cloud server is interrupted. The edge server can use any method to detect whether the network is normal, such as accessing a specified site at preset intervals. If the access is successful, the edge server can determine that the network is normal; if the access fails, the edge server can determine that the network is interrupted.

[0091] S34. Control the charging of the target charging pile based on the first judgment result, the second judgment result and the charging interaction information.

[0092] In this step, the first judgment result and the second judgment result determine the control strategy for the edge server to control the charging of the target charging pile. The edge server can control the charging of the target charging pile based on the control strategy determined by the first judgment result and the second judgment result and according to the charging interaction information.

[0093] In general, on the one hand, this embodiment can control the charging pile to perform intelligent charging even when the cloud server does not support intelligent charging by configuring an intelligent charging mode on the edge server. On the other hand, this embodiment can control the charging pile to charge by combining the activation status of the intelligent charging mode on the edge server and the network status, so as to ensure that the charging pile charges normally.

[0094] In some embodiments, S34 includes: in response to a first judgment result of enabling the smart charging mode and a second judgment result of network normality, obtaining load information of each charging pile in the local area network, filtering the charging interaction information to obtain first interaction information and second interaction information, controlling the charging of the target charging pile according to the load information and the first interaction information, and forwarding the second interaction information to the cloud server. The first interaction information is interaction information related to smart charging, and the second interaction information is interaction information required by the cloud server to complete other functions besides smart charging.

[0095] In this embodiment, the load information can be determined by the charging voltage and current of the charging pile. The load information of each charging pile is crucial for the edge server to achieve intelligent charging, enabling dynamic power allocation and load balancing. The first interaction information may include information such as charging power or charging current. The edge server can determine the target charging power and target charging current of the target charging pile based on the load information, charging power, or charging current of each charging pile, and send the target charging power and target charging current to the target charging pile so that the target charging pile charges the electric vehicle according to the target charging power and target charging current, thereby controlling the charging of the target charging pile. The second interaction information may include, but is not limited to, charging start time, cumulative charging power, authentication information, etc. Other functions of the cloud server besides intelligent charging may include, but are not limited to, cloud authentication, order management, access control, etc. It is understood that the first and second interaction information may include partially overlapping interaction information or completely non-overlapping interaction information. For example, intelligent charging and order management may need to use the same interaction information.

[0096] Therefore, in this embodiment, when the smart charging mode of the edge server is enabled and the network between the edge server and the cloud server is normal, the edge server can directly control the target charging pile to perform smart charging, while the cloud server performs other functions besides smart charging. On the one hand, this can meet the user's local smart charging needs and avoid the problem of not being able to achieve smart charging when the cloud server does not support the smart charging mode. On the other hand, it realizes the functional complementarity between the edge server and the cloud server, so that the target charging pile can enjoy the complete charging service during the charging process and ensure that the target charging pile can complete the entire charging process.

[0097] In some embodiments, S34 includes: in response to a first judgment result of enabling the smart charging mode and a second judgment result of network interruption, obtaining load information of each charging pile in the local area network, filtering the charging interaction information to obtain third interaction information and fourth interaction information, and controlling the charging of the target charging pile according to the load information and the third interaction information, wherein the third interaction information is interaction information related to smart charging and the fourth interaction information is interaction information required by the edge server to complete other functions besides smart charging.

[0098] In this embodiment, the load information can be determined by the charging voltage and current of the charging pile. The load information of each charging pile is crucial for the edge server to achieve intelligent charging, enabling dynamic power allocation and load balancing. The third interaction information may include information such as charging power or charging current. The edge server can determine the target charging power and target charging current of the target charging pile based on the load information, charging power, or charging current of each charging pile, and send the target charging power and target charging current to the target charging pile so that the target charging pile charges the electric vehicle according to the target charging power and target charging current, thereby controlling the charging of the target charging pile. The second interaction information may include, but is not limited to, charging start time, cumulative charging power, authentication information, etc. Other functions of the edge server besides intelligent charging may include, but are not limited to, local authentication, order management, access control, etc. It is understood that the third and fourth interaction information may include partially overlapping interaction information, or may include completely non-overlapping interaction information. For example, intelligent charging and order management may need to use the same interaction information.

[0099] Therefore, this embodiment can seamlessly take over the charging of the target charging pile when the smart charging mode of the edge server is enabled and the network between the edge server and the cloud server is interrupted, and complete various functions in the charging process, including smart charging, local authentication, order management, access control, etc. On the one hand, it can meet the user's local smart charging needs, and on the other hand, it can avoid the problem that the charging pile cannot charge the electric vehicle normally when the network is interrupted, ensuring that the target charging pile can charge normally.

[0100] In some embodiments, S34 includes: in response to a first determination result that the smart charging mode is not enabled and a second determination result that the network is normal, forwarding the charging interaction information to the cloud server.

[0101] In this embodiment, when the smart charging mode of the edge server is not enabled and the network between the edge server and the cloud server is normal, the edge server acts as a data forwarder, while the cloud server takes over the charging of the target charging pile throughout the process and completes various functions during the charging process, including but not limited to smart charging, cloud authentication, order management, access control, etc., to ensure that the target charging pile can charge normally.

[0102] It is understandable that when the smart charging mode of the edge server is not enabled and the network between the edge server and the cloud server is normal, if the cloud server does not support the smart charging mode, the target charging pile cannot achieve smart charging. Therefore, in some embodiments, the edge server can decide whether to automatically enable the smart charging mode based on whether the cloud server supports the smart charging mode.

[0103] In some embodiments, the edge server is configured with a mapping table. As shown in Table 1 below, the mapping table stores the identifier of each cloud server and the corresponding smart charging mode support information.

[0104] Table 1

[0105] ECS1 Not supported ECS2 support ECS3 support ECS4 Not supported ECS5 support …… ……

[0106] In some embodiments, the edge server can obtain the target identifier of the cloud server and match the target identifier with the identifier of the cloud server in the mapping table. If the match is unsuccessful, the edge server controls the target charging pile to continue normal charging. If the match is successful, the edge server determines whether the smart charging mode corresponding to the successfully matched identifier is supported or not. If the smart charging mode is supported, the edge server enables the smart charging mode and controls the target charging pile to switch from normal charging to smart charging. If the smart charging mode is not supported, the edge server controls the target charging pile to continue normal charging.

[0107] Therefore, this embodiment can be adapted to various cloud servers. When the smart charging mode of the edge server is not enabled and the network between the edge server and the cloud server is normal, it can determine whether to automatically enable the smart charging mode based on whether the cloud server connected to the edge server supports the smart charging mode. Users do not need to enable the smart charging mode of the edge server themselves, which is beneficial to improving the user experience.

[0108] In some embodiments, S34 includes: in response to a first determination result that the smart charging mode is not enabled and a second determination result that the network is interrupted, filtering the charging interaction information to obtain a fifth interaction information and a sixth interaction information, controlling the charging of the target charging pile according to the fifth interaction information, wherein the fifth interaction information is interaction information related to normal charging, and the sixth interaction information is interaction information required by the edge server to complete other functions besides normal charging.

[0109] In this embodiment, the fifth interaction information may include information such as charging power or charging current. The edge server can determine the target charging power and target charging current of the target charging pile based on the charging power or charging current information, and send the target charging power and target charging current to the target charging pile so that the target charging pile charges the electric vehicle according to the target charging power and target charging current, thereby controlling the charging of the target charging pile. The sixth interaction information may include, but is not limited to, charging start time, cumulative charging power, authentication information, etc. Other functions of the edge server besides ordinary charging may include, but are not limited to, local authentication, order control, access control, etc. It is understood that the fifth and sixth interaction information may include partially overlapping interaction information, or may include completely non-overlapping interaction information. For example, ordinary charging and order control may need to use the same interaction information.

[0110] In this embodiment, when the smart charging mode of the edge server is not enabled and the network between the edge server and the cloud server is interrupted, the edge server seamlessly takes over the charging of the target charging pile and completes various functions during the charging process, including but not limited to normal charging, local authentication, order management, access control, etc. On the one hand, it can meet the user's local normal charging needs, and on the other hand, it can avoid the problem that the charging pile cannot charge the electric vehicle normally when the network is interrupted, ensuring that the target charging pile can charge normally.

[0111] When the network between the edge server and the cloud server is interrupted, if the charging pile stops charging, the cloud server will be unable to perform online billing and generate orders, which will affect the normal charging of the charging pile. Therefore, in some embodiments, the edge server can perform offline billing and generate orders based on the fourth or sixth interaction information, so as to ensure that the charging pile can still charge normally when the network is interrupted.

[0112] In some embodiments, the fourth and / or sixth interactive information includes the charging start time and the cumulative charging power.

[0113] In this embodiment, the charging start time is the time when the target charging pile starts charging the electric vehicle, and the cumulative charging power is the total power that the target charging pile has accumulated to charge the vehicle from the time the order started to the current time.

[0114] In some embodiments, the edge server can obtain the current charging time, determine the current charging cost based on the current charging time, charging start time and cumulative charging power, determine whether the target charging pile has stopped charging, and if it has stopped charging, obtain the current charging cost and generate an offline order based on the current charging cost.

[0115] In this embodiment, the edge server subtracts the charging start time from the current charging time to obtain the charging duration, and then multiplies the charging duration by the cumulative charging power to obtain the current charging cost.

[0116] Since edge servers have their own data storage capabilities, after generating offline orders, they can store the offline orders in a preset storage area to avoid order data loss.

[0117] In some embodiments, if the target charging station does not stop charging, the edge server continuously determines the current charging cost based on the current charging time, charging start time, and cumulative charging power.

[0118] The current charging fee is based on the basic information contained in the offline order. In some embodiments, the offline order may also contain other arbitrary information, such as order number, order time, charging start time, charging end time, charging amount, charging speed, order status, etc.

[0119] Therefore, this embodiment can perform offline billing and order generation, and can provide users with complete charging services even when the network is interrupted without relying on cloud servers.

[0120] In some embodiments, the edge server determines whether the network between the edge server and the cloud server has returned to normal. If the network has returned to normal, the offline orders are uploaded to the cloud server.

[0121] In this embodiment, when the network returns to normal, the edge server can retrieve offline orders from the preset storage area and upload them to the cloud server via the OCCP protocol. The cloud server can then record the offline orders under the charging user's name for information synchronization, thereby meeting the billing management requirements.

[0122] It should be noted that in the above embodiments, there is no necessarily a certain order between the steps. Those skilled in the art can understand from the description of the embodiments of the present invention that the above steps may have different execution orders in different embodiments, that is, they may be executed in parallel or in turn, etc.

[0123] As another aspect of this invention, this embodiment provides a charging control device. The charging control device can be a software module, which includes several instructions stored in a memory. A processor can access the memory, call the instructions, and execute them to complete the charging control methods described in the various embodiments above.

[0124] In some embodiments, the charging control device can be constructed from hardware components. For example, the charging control device can be constructed from one or more chips, which can work in coordination to complete the charging control methods described in the various embodiments above. As another example, the charging control device can also be constructed from components such as general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), microcontrollers, ARM (Acorn RISC Machines), programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination of these components.

[0125] In some embodiments, please refer to Figure 4 The charging control device 400 provided in this embodiment of the invention includes a first acquisition module 401, a first judgment module 402, a second judgment module 403, and a control module 404.

[0126] The first acquisition module 401 is used to acquire the charging interaction information sent by the target charging pile. The first judgment module 402 is used to judge whether the smart charging mode is turned on and obtain the first judgment result. The second judgment module 403 is used to judge whether the network between the edge server and the cloud server is normal and obtain the second judgment result. The control module 404 is used to control the charging of the target charging pile according to the first judgment result, the second judgment result and the charging interaction information.

[0127] In some embodiments, the edge server and multiple charging piles form a local area network. The control module 404 is specifically used to: in response to a first judgment result of enabling the smart charging mode and a second judgment result of network normality, obtain the load information of each charging pile in the local area network, filter the charging interaction information to obtain the first interaction information and the second interaction information, control the charging of the target charging pile according to the load information and the first interaction information, and forward the second interaction information to the cloud server. The first interaction information is the interaction information related to smart charging, and the second interaction information is the interaction information required by the cloud server to complete other functions besides smart charging.

[0128] In some embodiments, the edge server and multiple charging piles form a local area network. The control module 404 is specifically used to: in response to a first judgment result of enabling the smart charging mode and a second judgment result of network interruption, obtain the load information of each charging pile in the local area network, filter the charging interaction information to obtain third interaction information and fourth interaction information, and control the charging of the target charging pile according to the load information and the third interaction information. The third interaction information is the interaction information related to smart charging, and the fourth interaction information is the interaction information required by the edge server to complete other functions besides smart charging.

[0129] In some embodiments, the control module 404 is specifically used to: forward charging interaction information to the cloud server in response to a first judgment result that the smart charging mode is not enabled and a second judgment result that the network is normal.

[0130] In some embodiments, the control module 404 is specifically used to: in response to a first judgment result that the smart charging mode is not enabled and a second judgment result that the network is interrupted, filter the charging interaction information to obtain a fifth interaction information and a sixth interaction information, and control the charging of the target charging pile according to the fifth interaction information. The fifth interaction information is interaction information related to normal charging, and the sixth interaction information is interaction information required by the edge server to complete other functions besides normal charging.

[0131] In some embodiments, please refer to Figure 5 The fourth and / or sixth interactive information includes the charging start time and the cumulative charging power. The charging control device 400 also includes a second acquisition module 405, a determination module 406, a third judgment module 407, and a generation module 408.

[0132] The second acquisition module 405 is used to acquire the current charging time, the determination module 406 is used to determine the current charging cost based on the current charging time, the charging start time and the cumulative charging power, the third judgment module 407 is used to determine whether the target charging pile has stopped charging, and the generation module 408 is used to acquire the current charging cost when charging stops and generate an offline order based on the current charging cost.

[0133] In some embodiments, please refer to Figure 6 The charging control device 400 also includes a fourth judgment module 409 and an upload module 410.

[0134] The fourth judgment module 409 is used to determine whether the network between the edge server and the cloud server has returned to normal. The upload module 410 is used to upload the offline orders to the cloud server when the network returns to normal.

[0135] It should be noted that the above-described charging control device can execute the charging control method provided in the embodiments of the present invention, and has the corresponding functional modules and beneficial effects of the method. Technical details not described in detail in the embodiments of the charging control device can be found in the charging control method provided in the embodiments of the present invention.

[0136] Please see Figure 7 , Figure 7 This is a schematic diagram of the hardware structure of an edge server provided in an embodiment of the present invention. For example... Figure 7 As shown, the edge server 202 includes one or more processors 2021 and memory 2022. Figure 7 Take a processor from 2021 as an example.

[0137] Processor 2021 is configured to support the computer device in performing the corresponding functions in the methods described in the above method embodiments. Processor 2021 may be a Central Processing Unit (CPU), a Network Processor (NP), a hardware chip, or any combination thereof. The aforementioned hardware chip may be an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The aforementioned PLD may be a Complex Programmable Logic Device (CPLD), a Field-Programmable Gate Array (FPGA), a Generic Array Logic (GAL), or any combination thereof.

[0138] Memory 2022 is used to store program code. Memory 2022 may include volatile memory (VM), such as random access memory (RAM); memory may also include non-volatile memory (NVM), such as read-only memory (ROM), flash memory, hard disk drive (HDD), or solid-state drive (SSD); memory 2022 may also include combinations of the above types of memory.

[0139] The memory 2022 can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as the program instructions / modules corresponding to the charging control method in the embodiments of the present invention. The processor 2021 executes various functional applications and data processing of the charging control method and charging control device by running the non-volatile software programs, instructions, and modules stored in the memory 2022, that is, it realizes the functions of each module or unit of the charging control method and charging control device provided in the above method embodiments.

[0140] The memory 2022 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and applications required for at least one function. The data storage area may store data created based on the use of the charging control device, etc. In some embodiments, the memory 2022 may optionally include memory remotely configured relative to the processor, which can be connected to the charging control device via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0141] The one or more modules are stored in the memory 2022. When executed by the one or more processors 2021, they execute the charging control method in any of the above method embodiments. For example, they execute the method steps described in the above method embodiments to realize the functions of the modules described in the above device embodiments.

[0142] This invention also provides a storage medium storing a computer program, the computer program including program instructions, which, when executed by a computer, cause the computer to perform the method described in the foregoing embodiments.

[0143] It will be understood by those skilled in the art that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc.

[0144] Finally, it should be noted that the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments are not intended to impose additional limitations on the content of the present invention; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of the present invention. Furthermore, within the framework of the present invention, the above-described technical features can be combined with each other, and many other variations of different aspects of the present invention as described above exist, all of which are considered to be within the scope of the present invention specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A charging control method, characterized in that, Applied to an edge server, the edge server is configured with an intelligent charging mode, and the edge server forms a local area network with multiple charging piles. The charging control method includes: Obtain the charging interaction information sent by the target charging pile; Determine whether the intelligent charging mode is enabled, and obtain a first determination result; Determine whether the network between the edge server and the cloud server is normal, and obtain a second determination result; In response to the first judgment result of enabling the smart charging mode and the second judgment result of network interruption, the load information of each charging pile in the local area network is obtained, the charging interaction information is filtered to obtain the third interaction information and the fourth interaction information, and the charging of the target charging pile is controlled according to the load information and the third interaction information. The third interaction information is the interaction information related to smart charging, and the fourth interaction information is the interaction information required by the edge server to complete other functions besides smart charging.

2. The charging control method according to claim 1, characterized in that, The edge server and multiple charging piles form a local area network. Controlling the charging of the target charging pile based on the first judgment result, the second judgment result, and the charging interaction information includes: In response to the first judgment result of enabling smart charging mode and the second judgment result of network normality, the load information of each charging pile in the local area network is obtained, the charging interaction information is filtered to obtain the first interaction information and the second interaction information, the charging of the target charging pile is controlled according to the load information and the first interaction information, and the second interaction information is forwarded to the cloud server. The first interaction information is the interaction information related to smart charging, and the second interaction information is the interaction information required by the cloud server to complete other functions besides smart charging.

3. The charging control method according to claim 1, characterized in that, The step of controlling the charging of the target charging pile based on the first judgment result, the second judgment result, and the charging interaction information includes: In response to the first judgment result that the smart charging mode is not enabled and the second judgment result that the network is normal, the charging interaction information is forwarded to the cloud server.

4. The charging control method according to claim 1, characterized in that, The step of controlling the charging of the target charging pile based on the first judgment result, the second judgment result, and the charging interaction information includes: In response to the first judgment result that the smart charging mode is not enabled and the second judgment result that the network is interrupted, the charging interaction information is filtered to obtain the fifth interaction information and the sixth interaction information. The charging of the target charging pile is controlled according to the fifth interaction information. The fifth interaction information is the interaction information related to normal charging, and the sixth interaction information is the interaction information required by the edge server to complete other functions besides normal charging.

5. The charging control method according to claim 4, characterized in that, The fourth interactive information and / or the sixth interactive information include charging start time and cumulative charging power, and the charging control method further includes: Get the current charging time; The current charging cost is determined based on the current charging time, the charging start time, and the cumulative charging power. Determine whether the target charging station has stopped charging; If charging is stopped, the current charging cost is obtained, and an offline order is generated based on the current charging cost.

6. The charging control method according to claim 5, characterized in that, The charging control method further includes: Determine whether the network between the edge server and the cloud server has returned to normal; If the network returns to normal, the offline orders will be uploaded to the cloud server.

7. An edge server, characterized in that, The device includes a memory and a processor, the memory being connected to the processor, the processor being configured to execute one or more computer programs stored in the memory, the processor causing the edge server to implement the charging control method as described in any one of claims 1 to 6 when executing the one or more computer programs.

8. A charging system, characterized in that, include: Charging stations are configured to communicate with electric vehicles. as well as The edge server as described in claim 7 is configured to communicate with the charging pile and the cloud server respectively.

9. A storage medium, characterized in that, The storage medium stores a computer program, which includes program instructions that, when executed by a processor, cause the processor to perform the charging control method as described in any one of claims 1 to 6.

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