Charging control method, edge server, charging system and storage medium

Abstract

The invention 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 an edge server, the edge server is configured with an intelligent charging mode, and the method comprises the steps of obtaining charging interaction information sent by a target charging pile, judging whether the intelligent charging mode is started or not, obtaining a first judgment result, judging whether a network between the edge server and a cloud server is normal or not, obtaining a second judgment result, and sending the second judgment result to the target charging pile. 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 one hand, the charging pile can be controlled 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 charging pile can be controlled to perform charging in combination with the starting condition of the intelligent charging mode of the edge server and the network condition. And normal charging of the charging pile is ensured.

Description

Technical Field

[0001] The present invention relates to the field of new energy charging technology, and in particular to a charging control method, an edge server, a charging system and a storage medium. Background Art

[0002] Charging piles are devices used to charge new energy vehicles. With the increasing adoption of new energy vehicles, the demand for charging piles is rapidly increasing. Current charging piles are typically connected to cloud servers via the Internet. These cloud servers are typically deployed by charging pile control service providers and centrally control charging piles, order data, and billing services. However, when the Internet is down, charging piles can be disrupted, or even unable to charge electric vehicles properly. Summary of the Invention

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

[0004] In a first aspect, an embodiment of the present invention provides a charging control method, applied to an edge server, wherein the edge server is configured with a smart charging mode, the method comprising:

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

[0006] Determine whether the smart charging mode is turned on to 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 according to the first judgment result, the second judgment result and the charging interaction information.

[0009] Optionally, the edge server and a plurality of charging piles form a local area network, and 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 turning on the smart charging mode and the second judgment result of the network being normal, the load information of each charging pile in the local area network is obtained, the charging interaction information is screened 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 interaction information related to smart charging, and the second interaction information is interaction information required by the cloud server to complete other functions except smart charging.

[0011] Optionally, the edge server and a plurality of charging piles form a local area network, and 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 turning on the smart charging mode and the second judgment result of the network interruption, the load information of each charging pile in the local area network is obtained, the charging interaction information is filtered to obtain third interaction information and 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 interaction information related to smart charging, and the fourth interaction information is interaction information required by the edge server to complete other functions except smart charging.

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

[0014] 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, the charging interaction information is forwarded to the cloud server.

[0015] Optionally, controlling the charging of the target charging pile according to 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 turned on and the second judgment result of the network interruption, the charging interaction information is screened to obtain fifth interaction information and sixth interaction information, and the charging of the target charging pile is controlled according to the fifth interaction information. The fifth interaction information is interaction information related to ordinary charging, and the sixth interaction information is interaction information required by the edge server to complete other functions besides ordinary charging.

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

[0018] Get the current charging time;

[0019] determining a current charging fee based on the current charging time, the charging start time, and the accumulated charging power;

[0020] Determining whether the target charging pile stops charging;

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

[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 order is uploaded to the cloud server.

[0025] In a second aspect, an embodiment of the present invention provides an edge server comprising a memory and a processor, wherein the memory is connected to the processor, and the processor is configured to execute one or more computer programs stored in the memory. When the processor executes the one or more computer programs, the edge server implements the charging control method as described in the first aspect.

[0026] In a third aspect, an embodiment of the present invention provides a charging system, including:

[0027] A charging station configured to be communicatively connected to the electric vehicle; and

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

[0029] In a fourth aspect, an embodiment of the present invention provides a storage medium storing a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor executes the charging control method as described in the first aspect.

[0030] Compared with the prior art, an embodiment of the present invention provides a charging control method, an edge server, a charging system, and a storage medium. The charging control method is applied to the edge server, and the edge server is configured with an intelligent charging mode. The method includes: obtaining charging interaction information sent by the target charging pile, determining whether the intelligent charging mode is turned on, obtaining a first judgment result, determining whether the network between the edge server and the cloud server is normal, obtaining a second judgment result, and controlling the charging of the target charging pile based on the first judgment result, the second judgment result, and the charging interaction information. Therefore, 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 the intelligent charging mode on the edge server. On the other hand, this embodiment can control the charging of the charging pile in combination with the activation status of the intelligent charging mode of the edge server and the network status, ensuring normal charging of the charging pile even if the network is interrupted. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

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

[0033] Figure 2 A schematic structural diagram of a charging pile provided by an embodiment of the present invention;

[0034] Figure 3 A schematic flow chart of a charging control method provided by an embodiment of the present invention;

[0035] Figure 4 A schematic structural diagram of a charging control device provided by an embodiment of the present invention;

[0036] Figure 5 A schematic structural diagram of a charging control device provided in another embodiment of the present invention;

[0037] Figure 6 A schematic structural diagram of a charging control device provided in yet another embodiment of the present invention;

[0038] Figure 7 A schematic diagram of the hardware structure of an edge server provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0040] It should be noted that, unless there is a conflict, the various features of the embodiments of the present invention may be combined with each other and are all within the scope of protection of the present invention. In addition, although the functional modules are divided in the device schematics and the logical order is shown in the flow charts, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flow charts. Furthermore, the terms "first," "second," "third," etc. used in the present invention do not limit the data or execution order, but only distinguish between identical or similar items with substantially the same functions and effects.

[0041] The embodiment of the present invention provides an application scenario of a charging system, please refer to Figure 1 , the application scenario includes a power grid 100 , a charging system 200 and an electric vehicle 300 .

[0042] Grid 100 is a power network that transmits utility power via transmission lines to charging system 200 to power electric vehicles 300. Utility power is industrial frequency alternating current (AC), which is typically characterized by voltage, current, and frequency. Typically, the utility power transmitted from grid 100 to charging system 200 is three-phase AC.

[0043] The charging system 200 is a system for charging the electric vehicle 300 to replenish the power of the electric vehicle 300. Its working principle is to receive electric energy from the power grid and then transmit the electric energy to the electric vehicle 300 through the charging line to charge the electric vehicle 300. In some embodiments, Figure 1 As shown, charging system 200 includes charging pile 201. The number of charging piles 201 in charging system 200 can be set according to actual needs and is not limited here. Charging pile 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 integrated AC / DC charging piles.

[0044] The DC charging pile uses DC power to perform DC charging on the power battery of the electric vehicle 300. This charging method is also called "fast charging". The DC charging pile is electrically connected to the power grid 100, and can receive three-phase 380V AC power input from the power grid 100 and convert the AC power into DC power, which is then transmitted to the power battery of the electric vehicle 300 for charging through a standard DC charging plug and charging socket, thereby achieving DC charging. The power supply characteristics of the DC charging pile itself determine that it can output sufficient charging power, and the adjustment range of voltage and current is relatively large, thereby achieving fast charging. The DC charging pile has a charger function, which can monitor and control the working status of the charged power battery in real time, and can also measure the charging power.

[0045] The AC charging pile can use a single or dual 220VAC / 380VAC AC output interface to provide power to the electric vehicle 300 for use by the on-board charger to charge the power battery. This charging method is also called "slow charging". The output power of the AC charging pile is usually 5kW (220VAC) / 20kW (380VAC), but the actual charging power is limited by the on-board charger. Generally, the on-board charging power of small electric vehicles is between 2 and 3kW. The on-board charger of the electric vehicle 300 can convert the AC power into DC power through filtering and rectification, and then store the DC power in the power battery of the electric vehicle 300, thereby charging the electric vehicle 300. This charging method is mainly used for small pure electric vehicles.

[0046] The input voltage of an AC / DC integrated charging station is typically three-phase, four-wire, 380VAC ±15% at a frequency of 50Hz. The integrated AC / DC charging station includes both a DC output port and an AC output port. The DC output port outputs adjustable DC power to charge the power battery of electric vehicle 300, typically with a charging power of 10 to 40kW. The AC output port outputs 220VAC (5kW) / 380VAC (20kW) AC power to power the onboard charger of electric vehicle 300. The integrated AC / DC charging station provides conventional charging via the AC output port and fast charging via the DC output port. Fast charging is used during daytime hours when charging traffic is high, while conventional slow charging is used at night when the charging station is less user-friendly. The integrated AC / DC charging station supports both AC and DC charging simultaneously and interlocked charging. Its modular design facilitates maintenance.

[0047] In some embodiments, the charging station 201 is equipped with one or more charging guns. A charging gun is an interface device that connects the charging station to the electric vehicle 300 and is primarily used to transfer power to the electric vehicle 300 for charging. A charging gun typically has a plug and a cable, one end of which connects to the charging station and the other end plugs into the charging port of the electric vehicle 300. Charging guns can come in different types depending on different charging requirements and technical standards. 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 usually used in fast charging stations. They have a large power output and can quickly charge the vehicle's power battery.

[0049] Slow charging guns are also called AC charging guns. They are usually used in home charging piles, commercial charging piles and public charging piles. They have low power and are suitable for charging using ordinary household power supplies. The charging speed is relatively slow.

[0050] In some embodiments, see Figure 2 The charging pile 201 includes an input filter circuit 2011, an AC / DC circuit 2012, a DC / DC circuit 2013, an output filter 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] AC / DC circuit 2012 is electrically connected to input filter circuit 2011 and is configured to convert AC power from grid 200 into DC power. AC / DC circuit 2012 is any circuit configured to convert AC power into DC power, including but not limited to a three-phase active PFC (Power Factor Correction) circuit and a three-phase neutral-free Vienna circuit.

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

[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, ensure stable communication between the charging pile 201 and the electric vehicle 300, and 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 direct current 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 configured 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 end of the DC / DC circuit 2013 and is used to detect the output end current of the DC / DC circuit 2013 so as to subsequently adjust and control the charging current according to the output end current.

[0058] The metering module 2018 is electrically connected to the charging control module 2016, and includes metering, monitoring and management functions. The metering function is responsible for accurately measuring parameters such as power, voltage, current, etc. during the charging process, and feeding back the data to the charging control module 2016 to ensure accurate measurement of the charging power. The monitoring function is responsible for real-time monitoring of the operation of the charging pile 201, including power, time, cost, etc., 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, counting charging volume and costs, etc., to provide 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, various interactive information can be sent and received between the charging pile 201 and the electric vehicle 300.

[0060] In some embodiments, please refer to Figure 1 , the charging system 200 also includes an edge server 202 .

[0061] The edge server 202 is in communication with each charging station 201 of the charging system 200. The communication connection includes wireless communication and wired communication. Wireless communication includes 5G communication, 4G communication, 3G communication, 2G communication, wireless broadband (Wi-Fi), CDMA, CDMA2000, ZigBee, near-field communication (NFC), Bluetooth, RFID, GSM, infrared (IR), ISM, WiMAX, ultra-wideband (UWB), or UMTS / 3GPPw / HSDPA, etc. Wired communication includes 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 station 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 actively push data to the client. The edge server 202 can also establish a persistent connection with each charging station 201 of the charging system 200 for bidirectional data transmission.

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

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

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

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

[0066] In some embodiments, the cloud server 203 is connected to the edge server 202 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 forwarding role in the charging system 200, that is, when the charging pile 201 charges the electric vehicle 300, the edge server 202 obtains various interactive information of 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 disconnected, the edge server 202 can act as a role in the charging system 200 to control the charging pile 201 instead of the cloud server 203, that is, when the charging pile 201 charges the electric vehicle 300, the edge server 202 obtains various interactive information of the charging process from the charging pile 201 and implements various functions of the CSMS based on the various interactive information.

[0067] In general, the edge server 202 can act as a proxy in the charging system 200 to control the charging of the charging pile 201 on behalf of the cloud server 203.

[0068] In some embodiments, the cloud server 203 supports the OCPP protocol and can obtain various 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, and the smart charging mode 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 turning on or off of the smart charging mode according to the instructions. For example, the receiving module is a switch button. When the switch button is pressed, the edge server 202 can receive a button press signal and turn on the smart charging mode according to the button press signal. For another example, the receiving module is a wireless receiving module or a wired receiving module. The edge server 202 is connected to the external electronic device through the wireless receiving module or the wired receiving module. The user can operate the external electronic device to send an on instruction or a off instruction to the edge server 202 via a wireless connection or a wired connection. The edge server 202 controls the turning on or off of the smart charging mode according to the on instruction or the off instruction.

[0070] It can be understood that if the cloud server 203 supports the smart charging mode and the smart charging mode of the edge server 202 is turned off, then when the network is normal, since the cloud server 203 can control the charging pile 201 to perform smart charging, it can meet the smart charging needs of the charging pile 201; if the cloud server 203 does not support the smart charging mode, and the smart charging mode of the edge server 202 is turned on, regardless of whether the network is normal, the edge server 202 can control the charging pile 201 to perform smart charging, so even when the cloud server 203 does not support the smart charging mode, it can meet the smart charging needs of the charging pile 201.

[0071] In some embodiments, the edge server 202 and the various charging piles 201 of the charging system 200 can form a local area network (LAN). A LAN is a network system in which computer devices distributed in different physical locations within a few kilometers are connected together and can communicate with each other and share resources with the support of network software. The edge server 202 and each charging pile 201 can transmit data to each other based on the LAN. The edge server 202 can obtain load information such as the charging power of each charging pile 201 being charged in the charging system 200 based on the LAN, so that when the smart charging mode of the edge server 202 is turned on, the edge server 202 can operate in the smart charging mode according to the load information and control the charging pile 201 to perform smart charging according to the smart charging mode.

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

[0073] The electric vehicle 300 can interact with the charging station 201 during the charging process. During the interaction, various interactive information can be sent and received between the electric vehicle 300 and the charging station 201. In some embodiments, the charging process of the electric vehicle 300 can include a charging parameter configuration phase and a charging phase.

[0074] The charging pile 201 is physically connected to the electric vehicle 300 and powered on, and after checking that the voltage is normal, it enters the charging parameter configuration stage. In this stage, the interactive information sent and received between the electric vehicle 300 and the charging pile 201 includes handshake messages, identity 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 indicates that the charging pile 201 is ready to configure the 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 the two parties.

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

[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 charging station 201 to the battery management system of electric vehicle 300. The charging parameter suggestion message includes the charging parameters recommended by charging station 201, including 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 electric vehicle 300 sends a charging parameter confirmation message to charging station 201, indicating that the battery management system of electric vehicle 300 confirms the received charging parameters. After receiving the charging parameter confirmation message, charging station 201 completes the charging parameter negotiation.

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

[0079] During the charging phase, the charging station 201 adjusts the charging voltage and current according to the charging requirements of the battery management system of the electric vehicle 300 to ensure normal charging. The charging interaction information sent and received between the electric vehicle 300 and the charging station 201 includes charging control messages, charging data messages, and charging fault messages.

[0080] Charging control messages are used to control the charging process. They 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 by charging station 201 to the battery management system of electric vehicle 300 to instruct the battery management system of electric vehicle 300 to start charging. The stop charging command message is sent by charging station 201 to the battery management system of electric vehicle 300 to instruct the battery management system of electric vehicle 300 to stop charging. The charging status report message is sent by the battery management system of electric vehicle 300 to charging station 201 to report the charging status of the battery management system of electric vehicle 300.

[0081] Charging data messages are used to transmit charging data. They include charging voltage / current setting messages and battery voltage / current measurement messages. Charging voltage / current setting messages are sent from charging station 201 to the battery management system of electric vehicle 300 to set the charging voltage and current values. Battery voltage / current measurement messages are sent from the battery management system of electric vehicle 300 to charging station 201 to report the battery voltage and current values of 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 charging station 201 to the battery management system of electric vehicle 300 to indicate charging fault information, while battery fault messages are sent from the battery management system of electric vehicle 300 to charging station 201 to indicate battery fault information.

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

[0084] An embodiment of the present invention provides a charging control method, which is applied to the edge server as described above. The edge server is configured with an intelligent charging mode. Figure 3 , the charging control method includes:

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

[0086] In this step, the target charging pile is the charging pile that is being charged, and the charging interaction information is the interaction information sent and received between the target charging pile and the electric vehicle when the target charging pile is charging the electric vehicle. As mentioned above, the charging interaction information may include handshake messages, identity authentication messages, charging parameter negotiation messages, and charging preparation messages in the charging parameter configuration stage, as well as charging control messages, charging data messages, and charging fault messages in the charging stage.

[0087] S32, determining whether the smart charging mode is on, and obtaining a first determination result;

[0088] In this step, the first judgment result may include whether the smart charging mode is enabled or disabled. As previously described, the edge server can receive user instructions based on its own configured receiving module and control the enabling or disabling of the smart charging mode based on the instructions, thereby determining whether the smart charging mode of the edge server is enabled, and thus obtaining the first judgment result.

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

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

[0091] S34. Control charging of the target charging pile according to 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 of the edge server for controlling the charging of the target charging pile. The edge server can control the charging of the target charging pile according to the charging interaction information based on the control strategy determined by the first judgment result and the second judgment result.

[0093] In general, on the one hand, this embodiment configures the smart charging mode on the edge server, so that the charging pile can be controlled to perform smart charging even when the cloud server does not support smart charging. On the other hand, this embodiment can control the charging of the charging pile in combination with the activation status of the smart charging mode of the edge server and the network status to ensure normal charging of the charging pile.

[0094] In some embodiments, S34 includes: in response to a first judgment result of turning on the smart charging mode and a second judgment result that the network is normal, obtaining the load information of each charging pile in the local area network, screening 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 for 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 important information for the edge server to realize intelligent charging, and is used to realize dynamic power distribution and load balancing. The first interactive information may include information such as charging power or charging current. The edge server may 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 interactive information may include but is not limited to the charging start time, cumulative charging power, authentication information, etc. In addition to intelligent charging, other functions of the cloud server may include but are not limited to cloud authentication, order management, access control, etc. It is understandable that the first interactive information and the second interactive information may include partially overlapping interactive information, or may include completely non-overlapping interactive information. For example, intelligent charging and order management may need to use the same interactive information.

[0096] Therefore, in this embodiment, when the smart charging mode of the edge server is turned on 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 completes other functions except smart charging. On the one hand, it can meet the user's local smart charging needs and avoid the problem that smart charging cannot be achieved 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 complete charging services during the charging process, ensuring that the target charging pile can complete the entire charging process.

[0097] In some embodiments, S34 includes: in response to the first judgment result of turning on the smart charging mode and the second judgment result of the network interruption, obtaining the load information of each charging pile in the local area network, screening 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, 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.

[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 important information for the edge server to realize intelligent charging, and is used to realize dynamic power distribution and load balancing. The third interactive information may include information such as charging power or charging current. The edge server may 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 interactive information may include but is not limited to the charging start time, cumulative charging power, authentication information, etc. In addition to intelligent charging, other functions of the edge server may include but are not limited to local authentication, order management, access control, etc. It is understandable that the third interactive information and the fourth interactive information may include partially overlapping interactive information, or may include completely non-overlapping interactive information. For example, intelligent charging and order management may need to use the same interactive information.

[0099] Therefore, in this embodiment, when the smart charging mode of the edge server is turned on and the network between the edge server and the cloud server is interrupted, the edge server can seamlessly take over the charging of the target charging pile 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 fails to charge the electric vehicle normally when the network is interrupted, and ensure that the target charging pile can charge normally.

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

[0101] In this embodiment, when the smart charging mode of the edge server is not turned on and the network between the edge server and the cloud server is normal, the edge server acts as a data forwarder, and the cloud server takes over the charging of the target charging pile throughout the entire process, completing various functions in 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 turned on 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 turn on 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, which stores the identifier of each cloud server and the corresponding smart charging mode support status.

[0104] Table 1

[0105] Cloud server logo Whether to support smart charging mode 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 relationship table. If the match is not successful, the target charging pile is controlled to continue normal charging. If the match is successful, it is determined whether the smart charging mode corresponding to the successfully matched identifier supports the smart charging mode or not. If the smart charging mode is supported, the edge server turns on 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 target charging pile is controlled to continue normal charging.

[0107] Therefore, this embodiment can adapt to various cloud servers. When the smart charging mode of the edge server is not turned on and the network between the edge server and the cloud server is normal, it can decide whether to automatically turn on the smart charging mode based on whether the cloud server connected to the edge server supports the smart charging mode. The user does not need to turn on the smart charging mode of the edge server by himself, which is conducive to improving the user experience.

[0108] In some embodiments, S34 includes: in response to the first judgment result that the smart charging mode is not turned on and the second judgment result of the network interruption, screening the charging interaction information to obtain fifth interaction information and sixth interaction information, and controlling the charging of the target charging pile according to the fifth interaction information, the fifth interaction information is interaction information related to ordinary charging, and the sixth interaction information is interaction information required by the edge server to complete other functions besides ordinary charging.

[0109] In this embodiment, the fifth interactive 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 information such as charging power or charging current, 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 interactive information may include but is not limited to charging start time, cumulative charging power, authentication information, etc. In addition to ordinary charging, other functions of the edge server may include but are not limited to local authentication, order control, access control, etc. It is understandable that the fifth interactive information and the sixth interactive information may include partially overlapping interactive information, or may include completely non-overlapping interactive information. For example, ordinary charging and order control may require the use of the same interactive information.

[0110] In this embodiment, when the smart charging mode of the edge server is not turned on 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 in 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 fails to 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 cannot charge online 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 interaction information or the 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 interaction information and / or the sixth interaction information includes the charging start time and the accumulated charging power.

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

[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 accumulated charging power, determine whether the target charging pile stops charging, and if so, 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 accumulated charging power to obtain the current charging fee.

[0116] Since the edge server itself has data storage capabilities, after generating an offline order, the edge server can store the offline order 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 continues to determine the current charging fee based on the current charging time, the charging start time, and the accumulated charging power.

[0118] The current charging fee is the basic information included in the offline order. In some embodiments, the offline order may also include any other 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 without relying on cloud servers even when the network is interrupted.

[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 order is uploaded to the cloud server.

[0121] In this embodiment, when the network returns to normal, the edge server can retrieve the offline order from the preset storage area and upload it to the cloud server through the OCCP protocol. The cloud server can record the offline order under the charging user name and synchronize the information to meet the billing management requirements.

[0122] It should be noted that, in each of the above-mentioned embodiments, there is not necessarily a certain order between the above-mentioned steps. A person of ordinary skill in the art can understand from the description of the embodiments of the present invention that, in different embodiments, the above-mentioned steps may have different execution orders, that is, they may be executed in parallel, may be executed interchangeably, and so on.

[0123] As another aspect of an embodiment of the present invention, an embodiment of the present invention provides a charging control device. The charging control device may be a software module comprising a plurality of instructions stored in a memory. A processor may access the memory and execute the instructions to implement the charging control method described in each of the above embodiments.

[0124] In some embodiments, the charging control device can be constructed from hardware devices. For example, the charging control device can be constructed from one or more chips, and the chips can work in coordination with each other to implement the charging control methods described in the above embodiments. For another example, the charging control device can also be constructed from a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), a single-chip microcomputer, an ARM (Acorn RISC Machine), a programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of these components.

[0125] In some embodiments, see Figure 4 The charging control device 400 provided in the embodiment of the present 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 obtain 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 a 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 a second judgment result, and 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, and the control module 404 is specifically used to: in response to the first judgment result of turning on the smart charging mode and the second judgment result of the network being normal, 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 except smart charging.

[0128] In some embodiments, the edge server and multiple charging piles form a local area network, and the control module 404 is specifically used to: in response to the first judgment result of turning on the smart charging mode and the 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 interaction information related to smart charging, and the fourth interaction information is interaction information required by the edge server to complete other functions except smart charging.

[0129] In some embodiments, the control module 404 is specifically configured to: 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, forward the charging interaction information to the cloud server.

[0130] In some embodiments, the control module 404 is specifically used to: in response to the first judgment result that the smart charging mode is not turned on and the second judgment result of the network interruption, filter the charging interaction information to obtain fifth interaction information and 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 ordinary charging, and the sixth interaction information is interaction information required by the edge server to complete other functions besides ordinary charging.

[0131] In some embodiments, see Figure 5 The fourth interaction information and / or the sixth interaction information include the charging start time and the accumulated charging power. The charging control device 400 further 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 obtain the current charging time, the determination module 406 is used to determine the current charging cost based on the current charging time, charging start time and accumulated charging power, the third judgment module 407 is used to judge whether the target charging pile has stopped charging, and the generation module 408 is used to obtain the current charging cost when charging is stopped, and generate an offline order based on the current charging cost.

[0133] In some embodiments, see Figure 6 The charging control device 400 further includes a fourth determination module 409 and an upload module 410 .

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

[0135] It should be noted that the above-mentioned 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 execution method. For technical details not fully described in the embodiments of the charging control device, please refer to the charging control method provided in the embodiments of the present invention.

[0136] See also Figure 7 , Figure 7 The present invention provides a hardware structure diagram of an edge server. Figure 7 As shown, the edge server 202 includes one or more processors 2021 and a memory 2022. Figure 7 A processor 2021 is taken as an example.

[0137] The processor 2021 is configured to support the computer device in executing the corresponding functions of the method in the above method embodiment. The processor 2021 can be a central processing unit (CPU), a network processor (NP), a hardware chip, or any combination thereof. The above hardware chip can be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The above PLD can 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); non-volatile memory (NVM), such as read-only memory (ROM), flash memory, hard disk drive (HDD), or solid-state drive (SSD); or a combination of the aforementioned types of memory.

[0139] 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. Processor 2021 executes the non-volatile software programs, instructions, and modules stored in memory 2022 to execute the various functional applications and data processing of the charging control method and the charging control device, thereby implementing the functions of the charging control method and the various modules or units of the charging control device provided in the above-mentioned method embodiments.

[0140] Memory 2022 may include a program storage area and a data storage area. The program storage area may store the operating system and application programs required for at least one function. The data storage area may store data generated based on the use of the charge control device. In some embodiments, memory 2022 may optionally include memory located remotely from the processor. Such remote memory may be connected to the charge 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, the charging control method in any of the above method embodiments is executed, for example, the method steps described in the above method embodiments are executed to realize the functions of the modules described in the above device embodiments.

[0142] An embodiment of the present invention further provides a storage medium storing a computer program. The computer program includes program instructions. When executed by a computer, the program instructions enable the computer to execute the method described in the above embodiment.

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

[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 be additional limitations on the content of the present invention. The purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. In addition, under the thinking of the present invention, the above-mentioned technical features continue to be combined with each other, and there are many other changes in different aspects of the present invention as described above, all of which are considered to be within the scope of the description of the present invention. Furthermore, it is clear to those skilled in the art that improvements or changes can be made based on the above description, and all such improvements and changes should fall within the scope of protection of the claims appended to the present invention.

Claims

1. A charging control method, characterized in that: Applied to an edge server, the edge server is configured with a smart charging mode, and the charging control method includes: Obtain charging interaction information sent by the target charging pile; Determine whether the smart charging mode is turned on to 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; The charging of the target charging pile is controlled according to the first judgment result, the second judgment result and the charging interaction information.

2. The charging control method according to claim 1, wherein: The edge server and the plurality of charging piles form a local area network, and the controlling the charging of the target charging pile according to the first judgment result, the second judgment result and the charging interaction information includes: In response to the first judgment result of turning on the smart charging mode and the second judgment result of the network being normal, the load information of each charging pile in the local area network is obtained, the charging interaction information is screened 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 interaction information related to smart charging, and the second interaction information is interaction information required by the cloud server to complete other functions except smart charging.

3. The charging control method according to claim 1, wherein: The edge server and the plurality of charging piles form a local area network, and the controlling the charging of the target charging pile according to the first judgment result, the second judgment result and the charging interaction information includes: In response to the first judgment result of turning on the smart charging mode and the second judgment result of the network interruption, the load information of each charging pile in the local area network is obtained, the charging interaction information is filtered to obtain third interaction information and 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 interaction information related to smart charging, and the fourth interaction information is interaction information required by the edge server to complete other functions except smart charging.

4. The charging control method according to claim 1, wherein: The controlling the charging of the target charging pile according to the first judgment result, the second judgment result and the charging interaction information 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, the charging interaction information is forwarded to the cloud server.

5. The charging control method according to claim 1, wherein: The controlling the charging of the target charging pile according to 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 turned on and the second judgment result of the network interruption, the charging interaction information is screened to obtain fifth interaction information and sixth interaction information, and the charging of the target charging pile is controlled according to the fifth interaction information. The fifth interaction information is interaction information related to ordinary charging, and the sixth interaction information is interaction information required by the edge server to complete other functions besides ordinary charging.

6. The charging control method according to claim 3 or 5, characterized in that: The fourth interaction information and / or the sixth interaction information includes a charging start time and a cumulative charging power, and the charging control method further includes: Get the current charging time; determining a current charging fee based on the current charging time, the charging start time, and the accumulated charging power; Determining whether the target charging pile stops charging; If charging is stopped, the current charging fee is obtained and an offline order is generated based on the current charging fee.

7. The charging control method according to claim 6, 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 order is uploaded to the cloud server.

8. An edge server, characterized in that: The device comprises a memory and a processor, wherein the memory is connected to the processor, and the processor is used to execute one or more computer programs stored in the memory. When the processor executes the one or more computer programs, the edge server implements the charging control method according to any one of claims 1 to 7.

9. A charging system, characterized in that: include: A charging pile configured to be communicatively connected with the electric vehicle; as well as The edge server according to claim 8, wherein the edge server is configured to be communicatively connected to the charging pile and the cloud server respectively.

10. A storage medium, characterized in that: The storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor is caused to execute the charging control method according to any one of claims 1 to 7.

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