Charging management method and device based on charge point, and edge server

Abstract

The present invention relates to the field of charging, and specifically relates to a charging management method and device based on a charge point, and an edge server. The charging management method based on a charge point comprises: monitoring for an abnormal network signal, wherein the abnormal network signal is a network signal sent to an edge server when a network to which a charging system belongs is experiencing a network abnormality; on the basis of the abnormal network signal, establishing a target local area network in the charging system, the target local area network being based on the edge server; on the basis of the target local area network, receiving a charging request from a charge point; and processing the charging request, and performing charging management on the basis of the charging request. By means of monitoring for an abnormal network signal and establishing an edge-server-based target local area network, the method enables the edge server to receive and process charging requests from charge points during network abnormalities, thereby ensuring uninterrupted provision of charging services, meeting users' charging needs, and improving the resistance of the charging network to single-point failures.

Description

Charging management method and device based on charging pile, and edge server

[0001] The present application claims priority to the Chinese patent application No. 202411115582.8, filed on August 14, 2024, and entitled "Charging management method and device based on charging pile, and edge server", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of charging, in particular to a charging management method and device based on charging pile, and an edge server. BACKGROUND

[0003] With the popularity of electric vehicles, the demand for charging piles is increasing, and effectively managing these charging piles has become an important technical challenge. Currently, most charging pile solutions rely on cloud platforms for charging management, relying on central servers to uniformly schedule and process charging requests to optimize the distribution and use of charging piles.

[0004] However, this charging management method relying on a centralized cloud platform has several major problems. First, when the network connection on which the charging network depends encounters abnormalities or instability, the entire charging service may be interrupted, which directly affects the charging experience of users. In addition, the centralized management mode of the cloud platform may encounter bottlenecks when processing a large number of charging requests, affecting the response speed and processing efficiency of the charging task. Furthermore, the stability and reliability of the cloud platform are crucial to the normal operation of the system, and any systematic failure can cause widespread service interruption. Finally, poor network coverage in some areas also limits the implementation of cloud platform-based charging management solutions, affecting the popularity and convenience of charging services. SUMMARY

[0005] One purpose of an embodiment of the present application is to provide a charging management method and device based on charging pile, and an edge server, to solve the technical problem of charging interruption caused by network instability during charging.

[0006] In a first aspect, an embodiment of the present application provides a charging management method based on a charging pile, applied to an edge server in a charging system, the charging system further comprising a charging pile, the method comprising:

[0007] monitoring an abnormal network signal, the abnormal network signal being a network signal sent to the edge server when a network to which the charging system belongs is in network abnormality;

[0008] establishing a target local area network based on the edge server in the charging system according to the abnormal network signal;

[0009] According to the target local area network, a charging request of the charging pile is received;

[0010] The charging request is processed, and charging management is performed according to the charging request.

[0011] In combination with the first aspect, in a possible implementation manner, the charging system further includes a cloud server and an edge gateway device, and the establishing, according to the abnormal network signal, of the target local area network based on the edge server in the charging system includes: sending a communication connection signal to the charging pile, the cloud server, and the edge gateway device respectively according to the abnormal network signal; and establishing a communication connection with the charging pile, the cloud server, and the edge gateway device respectively according to the communication connection signal, to obtain the target local area network based on the edge server, wherein the devices connected to the target local area network can perform communication transmission.

[0012] It can be seen that in this embodiment, the target local area network based on the edge server can be established when the network is abnormal, the localization processing of the charging request and the optimization scheduling of the charging resource are realized, that is, data processing and management are performed at the local network level, the dependence on the remote cloud server is reduced, and in particular when the central network problem is encountered, the continuity and reliability of the charging service are ensured.

[0013] In combination with the first aspect, in a possible implementation manner, the processing of the charging request and the charging management performed according to the charging request include: analyzing the charging request to obtain charging request information; verifying whether a target charging pile initiating the charging request is in a preset white list according to the charging request information; and if the target charging pile is in the preset white list, performing charging management according to the charging request information.

[0014] It can be seen that in this embodiment, the edge server verifies whether the charging pile is in the white list, ensures that only the pre-authorized charging pile can be used for charging, avoids unauthorized access and possible security threats, improves the security of the edge server, and protects the charging network from potential malicious attacks.

[0015] In combination with the first aspect, in a possible implementation manner, if the target charging pile is in the preset white list, the charging management performed according to the charging request information includes: analyzing the charging request information to determine demand information of the target charging pile; obtaining a load amount in the target local area network; determining a load capacity of the target local area network according to the load amount; and determining whether to initiate a charging instruction to the target charging pile in combination with the demand information and the load capacity.

[0016] It can be seen that the edge server in the embodiment can intelligently process the charging request, ensure that the charging demand of the charging pile is met, and consider the load capacity of the target local area network to improve the charging efficiency and the stability of the power grid.

[0017] In a possible implementation manner of the first aspect, in combination with the demand information and the load capacity, determining whether to initiate a charging instruction to the target charging pile comprises: if the load capacity meets the demand information, initiating the charging instruction to the target charging pile; and if the load capacity does not meet the demand information, terminating the charging request of the target charging pile.

[0018] It can be seen that the edge server in the embodiment can intelligently manage the charging request, ensure that the charging demand of the charging pile is reasonably met, and protect the stability of the target local area network and the charging experience of the user.

[0019] In a possible implementation manner of the first aspect, after the if the load capacity meets the demand information, initiating the charging instruction to the target charging pile, the method further comprises: obtaining charging information of the target charging pile; analyzing the charging information to obtain an importance level of each piece of information in the charging information; when there is target information greater than or equal to a preset importance level in the charging information, storing the target information and deleting charging information other than the target information.

[0020] It can be seen that the edge server in the embodiment can ensure that information that has an important influence on operation and maintenance, safety and customer service and the like is focused on by screening and grading processing of the charging data, and meanwhile, interference of irrelevant data is reduced.

[0021] In a possible implementation manner of the first aspect, after receiving the charging request of the charging pile according to the target local area network, the method further comprises: analyzing the charging request to obtain a request priority of the charging request in the target local area network; and processing the charging request according to the request priority.

[0022] It can be seen that the edge server in the embodiment can reasonably allocate charging resources according to the priority of the charging request, ensure that the charging request with high priority can be preferentially met, and ensure that the request with low priority can be reasonably processed.

[0023] In a possible implementation manner of the first aspect, in combination with the demand information and the load capacity, determining whether to initiate a charging instruction to the target charging pile comprises: if the load capacity meets the demand information, initiating the charging instruction to the target charging pile; and if the load capacity does not meet the demand information, terminating the charging request of the target charging pile.

[0024] The monitoring unit is configured to monitor an abnormal network signal, which is a network signal sent to the edge server when a network to which the charging system belongs is abnormal.

[0025] The establishing unit is configured to establish a target local area network based on the edge server in the charging system according to the abnormal network signal.

[0026] The receiving unit is configured to receive a charging request of the charging pile according to the target local area network.

[0027] The processing unit is configured to process the charging request and perform charging management according to the charging request.

[0028] In a third aspect, an edge server is provided, which 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, and the processor, when executing the one or more computer programs, causes the edge server to implement the charging pile-based charging management method according to the first aspect.

[0029] In a fourth aspect, a computer-readable storage medium is provided, which stores a computer program, the computer program including program instructions, the program instructions, when executed by a processor, causing the processor to execute the charging pile-based charging management method according to the first aspect.

[0030] In the above embodiments of the charging pile-based charging management method and the device and the edge server thereof, the abnormal network signal is monitored first, which is a network signal sent to the edge server when a network to which the charging system belongs is abnormal, then a target local area network based on the edge server is established in the charging system according to the abnormal network signal, then a charging request of the charging pile is received according to the target local area network, and finally the charging request is processed and charging management is performed according to the charging request. In this embodiment, the abnormal network signal is monitored and the edge server is started for charging management, so that the continuity and stability of the charging service can be maintained even when the network to which the charging system belongs is abnormal. Further, when the network is abnormal, the edge server is used to process the charging request, which can reduce the dependence on external networks, so that the charging piles can still cooperate with each other, ensuring the reliability of intelligent scheduling function, and through the target local area network, the charging piles can better adapt to different network environments and conditions in different regions, improving the adaptability of the charging system. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0032] Fig. 1A is a schematic diagram of a charging system in an embodiment of the present application;

[0033] Fig. 1B is a schematic diagram of a network topology in a charging system in an embodiment of the present application;

[0034] Fig. 2 is a schematic diagram of a flow of a charging management method based on charging piles in an embodiment of the present application;

[0035] Fig. 3 is a schematic diagram of a structure of a charging management device based on charging piles in an embodiment of the present application;

[0036] Fig. 4 is a schematic diagram of a structure of an edge server in an embodiment of the present application. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the present application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0038] It should be noted that each feature in the embodiments of the present application can be combined with each other without conflict, and all within the protection scope of the present application. In addition, although the functional modules are divided in the schematic diagram of the device, and the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in different order from the module division in the device or the order in the flowchart. Furthermore, the "first", "second", "third" and the like used in the present application do not limit the data and execution order, and only distinguish the same items or similar items with basically the same function and effect.

[0039] In addition to the problems of the related art pointed out in the background, other related problems are also found:

[0040] 1. With the increasing number of charging piles, its security becomes a big challenge. For example, charging piles can become the target of hacker attacks, stealing user data or controlling charging piles for malicious operations. Security vulnerabilities of charging piles can lead to user information leakage, tampering of charging process, and even cause fire and other serious consequences. 2. Charging piles from different manufacturers may use different communication protocols and standards, which causes obstacles in interconnection and intercommunication between charging piles. Interconnection and intercommunication problems limit the expansibility of the charging network and the user's choice, and unified industry standards and protocols are needed to solve them. 3. Solutions relying on centralized cloud platforms usually require a large number of server resources and maintenance costs, which may eventually be passed on to end users, resulting in rising use costs. In addition, as the scale of the charging system expands, costs may exhibit non-linear growth.

[0041] To solve these problems, the method proposes a charging management method based on charging piles. The embodiment monitors abnormal network signals and starts the edge server for charging management, so that even in the case of abnormal network of the charging system, the continuity and stability of the charging service can still be maintained. Further, when the network is abnormal, using the edge server to process charging requests can reduce the dependence on external networks, so that the charging piles can still cooperate with each other, ensuring the reliability of intelligent scheduling functions, and through the target local area network, the charging piles can better adapt to different network environments and conditions in different regions, improving the adaptability of the charging system.

[0042] Referring to FIG. 1A, FIG. 1A is a schematic diagram of a charging system provided by an embodiment of the present application, wherein the charging system 10 includes an edge gateway device 20, a cloud server 30, an edge server 40, and a charging pile 50.

[0043] The edge gateway device 20 is a key component in the charging system, which is located near the charging pile and is responsible for local processing of charging requests and management of charging processes in the case of network disconnection or network instability. The edge gateway device 20, as a physical connection point, supports data communication between the charging pile 50 and the edge server 40 or directly with the cloud server 30, performs security verification, generation and sending of charging instructions, and preliminary processing of charging data. It acts as a bridge between the cloud server 30 and the charging pile 50, ensuring that charging services can be continuously and reliably performed even in the case of unreliable network connection. The edge gateway device 20 can also transmit data of the charging pile 50 to the edge server 40 or the cloud server 30, realizing data exchange and sharing.

[0044] The cloud server 30 is the remote control center of the charging system, processes and stores a large amount of data from the entire charging network, performs complex computing tasks such as user authentication, predicts charging costs, generates pre-deduction orders, and provides analysis services for users and operators, etc. It is also responsible for receiving charging requests and sending pre-deduction information. That is, the cloud server 30 plays a central management role in the charging system, ensuring the overall coordination and optimization of the charging system.

[0045] The edge server 40 is located at the edge of the charging network, close to the charging pile. It serves as an intermediary between the cloud server and the charging pile, and can perform data preprocessing, temporary storage, and local decision-making tasks. The edge server 40 has certain data processing capacity and storage space, and can locally perform intelligent scheduling and management of the charging pile. When the network connection is unstable or disconnected, the edge server can temporarily replace the cloud server to maintain the basic operation of the charging station.

[0046] Specifically, the edge server 40 not only serves as a disaster recovery backup for the charging system, but also as an intelligent emergency replacement solution. When the main communication equipment of the charging system (such as the router) loses connection with the public network, the edge server will automatically take over its functions and intelligently replace part or all of the functions of the charging station management system (CSMS) to ensure the continuous operation of the charging network and the provision of intelligent scheduling services. The edge server has the ability of intelligent scheduling, which can flexibly adjust the charging strategy according to the charging demand, network status and charging pile load, etc., to optimize the utilization efficiency of the charging source.

[0047] Referring to FIG. 1B, FIG. 1B is a network topology diagram of the charging system, which shows the introduction of a new role, the edge server, in the original charging network topology without invasion. The edge server not only serves as a disaster recovery backup for the charging system, but also as an intelligent emergency replacement solution. The cloud server is connected to the switch through the router, and multiple charging points are connected to the network through the switch. When the router loses connection with the public network, the edge server will automatically take over its functions and intelligently replace part or all of the functions of the cloud server to ensure the continuous operation of the charging network and the provision of intelligent scheduling services.

[0048] The charging pile 50 is the actual device that provides charging services, which can be a charging station installed in public places or private places. The charging pile 50 is directly connected with the edge gateway device 20, receives charging instructions from the edge gateway, executes the charging process, and generates charging data. The charging pile 50 can also authenticate with the edge gateway device 20 to ensure that only authorized users can use the charging service. The charging pile 50 can also communicate with the edge server 40 or the cloud server 30 to realize charging management and control.

[0049] The OCPP protocol and the MQTT protocol exist in the charging system.

[0050] Specifically, the charging system adopts the OCPP protocol to realize communication and control with the charging pile. The OCPP protocol (Open Charge Point Protocol) is an open protocol specially designed for communication between electric vehicle charging stations (EV Charging Stations) and charging piles (Charge Points). It is promoted by the International Electric Vehicle Charging Network Association (Open Charge Alliance), aiming to realize standardized communication between charging equipment and charging station management systems, thereby promoting the compatibility, interoperability and flexibility of charging infrastructure. That is, the OCPP protocol provides cross-vendor, cross-device charging pile management and control functions to ensure interoperability between charging piles.

[0051] The following introduces the specific application of the OCPP protocol in the charging system:

[0052] 1. In the charging system, the cloud server is the location of part or all functions of the charging system. It is the key point of the OCPP protocol, used to receive and process OCPP messages from the charging pile, such as starting charging, charging status update, ending charging, etc., and send control instructions to the charging pile.

[0053] 2. Since the edge server has part or all of the charging system functions similar to the cloud server. Further indicates that the edge server can also run the OCPP protocol, directly communicate with the charging pile, and realize charging management and scheduling. In the case of unstable or complete disconnection of network connection, the edge server can ensure the continuity of charging service.

[0054] 3. The charging pile is the other end of the OCPP protocol, which communicates with the cloud server or edge server according to the OCPP protocol. The charging pile receives control instructions (such as starting charging, stopping charging, adjusting charging power, etc.) through the OCPP protocol and reports its status (such as charging progress, fault information, etc.) to the management system.

[0055] Specifically, the charging system adopts the MQTT (Message Queuing Telemetry Transport) protocol as the communication protocol to realize communication and data exchange between the charging pile, the edge server and the cloud platform. The MQTT protocol supports different QoS levels, including 0, 1 and 2. The system will select the appropriate QoS level to publish messages according to the importance and real-time requirements of the messages.

[0056] The following introduces the specific application of the MQTT protocol in the charging system:

[0057] 1. Edge gateway devices act as a bridge connecting charging piles and upper-layer systems (edge ​​servers or cloud servers), and can efficiently transmit data using the MQTT protocol. Edge gateways publish charging pile status updates, fault reports, and other messages via MQTT, while also subscribing to control commands from the server.

[0058] 2. The cloud server can subscribe to messages published by the edge gateway or charging piles via MQTT, and process and respond to these messages. For example, the cloud server can receive status updates from the charging piles via the MQTT protocol and update the user's charging records accordingly, or analyze fault information for remote diagnosis.

[0059] 3. When the edge server undertakes some or all of the functions of the charging system, using the MQTT protocol can further reduce the system's response time and communication burden. The edge server subscribes to the status information of the charging piles through MQTT and issues control commands, making the management of the charging piles more localized and faster.

[0060] 4. Charging piles can send their status information, charging progress, alarm information, etc., to the edge gateway or directly to the edge server / cloud server via the MQTT protocol. They can also receive control commands from the upper-layer system, such as starting charging and stopping charging. The use of MQTT can improve the reliability and efficiency of data transmission, especially under less than ideal network conditions.

[0061] In view of this, this application proposes a charging management method based on charging piles to solve the above problems. The details are described below.

[0062] Please refer to Figure 2, which is a flowchart illustrating a charging management method based on charging piles provided in an embodiment of the present invention. This method is applied to an edge server in a charging system, which also includes charging piles. The method includes the following steps:

[0063] S10. Monitor abnormal network signals, wherein the abnormal network signal is a network signal sent to the edge server when the network to which the charging system belongs is in a network abnormality.

[0064] The aforementioned network anomalies may include, but are not limited to, complete loss of network connection, excessively high network latency, excessively low network bandwidth, and a network packet loss rate exceeding a threshold. Excessively high network latency can lead to communication timeouts; excessively low network bandwidth will affect data transmission speed.

[0065] The aforementioned abnormal network signal refers to any signal that indicates an anomaly in the network to which the charging system belongs (such as disconnection, packet loss, no response, etc.). Abnormal network signals can be generated by network hardware (such as routers and switches) or software (such as network monitoring services).

[0066] Specifically, the abnormal network signal can contain information about the network status, such as error codes, network diagnostic results, affected charging pile numbers, etc., which helps the edge server to assess the situation and respond appropriately.

[0067] The abnormal network signal is used to inform the edge server that the current network status is not good, so that the edge server can take appropriate measures, such as starting a localized charging management strategy, to maintain the continuity of charging services.

[0068] In specific implementation, when the charging system detects an abnormal network signal, it will attempt to send a warning or notification to the edge server in the charging system through a local network or a backup communication path. This action is automatic and aims to ensure that critical functions of the charging system are preserved even when the main network connection fails.

[0069] The edge server is a computing device located at the edge of the charging site or charging network, which can independently process data and make decisions without relying on the central cloud platform. Therefore, it becomes a disaster recovery backup for handling charging requests when the main network connection is interrupted, and also an intelligent emergency alternative. That is, when the main communication device of the charging system (such as a router) loses connection with the public network, the edge server will automatically take over its functions and intelligently replace part or all of the functions of the charging station management system (CSMS) to ensure the continuous operation of the charging network and the provision of intelligent scheduling services.

[0070] Further, monitoring abnormal network signals can be real-time monitoring, which enhances the stability of the charging system, allows the system to quickly respond to network changes, reduces service interruption time, and improves the reliability of charging services.

[0071] As can be seen, in this embodiment, by monitoring abnormal network signals and implementing autonomous processing mechanisms based on edge servers, the charging management method greatly improves the reliability of edge servers in the face of unstable or disconnected networks, ensuring that electric vehicle users' charging experience is not affected by network problems.

[0072] S20, according to the abnormal network signal, a target local area network based on the edge server is established in the charging system.

[0073] The establishment process of the target local area network can be that after the edge server identifies the network abnormal signal, it connects the charging piles and necessary management system devices through the built-in network function or the edge gateway device connected thereto to form an independent local area network. The independent local area network is the target local area network, which can continue to operate when the cloud server is unavailable.

[0074] In the target local area network, the edge server takes over part of the functions of the cloud server, such as scheduling of charging piles, allocation of charging tasks, state monitoring, and security management. It communicates with each charging pile through the target local area network to ensure the normal operation of the charging operation.

[0075] Further, when the original network connection is restored, the edge server synchronizes the data generated and collected in the target local area network to the central cloud server, ensuring data consistency and integrity, and gradually returns the management authority of the charging system to the cloud server.

[0076] It can be seen that, in the embodiment, by establishing a target local area network based on an edge server in the charging system, the charging system can continue to operate in the case of unstable network, reduce the dependence on the central network, ensure the continuity of the charging service, and improve the user experience.

[0077] S30, according to the target local area network, receiving the charging request of the charging pile.

[0078] The charging request can include but is not limited to state information of the charging pile, identification information (such as charging pile ID, user authentication information, etc.), charging parameters (such as current, voltage, power, etc.), and charging demand of the user.

[0079] The charging request is transmitted to the target server or the charging system through the network protocol (such as MQTT, OCPP, etc.) in the local area network.

[0080] S40, processing the charging request and performing charging management according to the charging request.

[0081] After receiving the charging request, the edge server analyzes and processes the request. During the analysis process, the edge server extracts the ID of the charging pile, user information, charging parameters (such as current, voltage, power, etc.), charging duration, and expected end time, etc.

[0082] Further, the charging request can be verified. The edge server verifies the charging request to ensure that the request comes from a legal charging pile and the request parameters meet the preset standards. The verification process can include user identity verification, charging pile state check, charging parameter compliance verification, etc.

[0083] Further, according to the analysis result of the charging request, the edge server determines a charging strategy, which considers factors such as the load of the charging pile, the power grid load, the usage history data of the charging pile, and the charging habits of the user.

[0084] Further, the edge server can allocate charging resources according to the charging strategy. During the allocation process, the edge server gives priority to the preset charging priority to ensure that high-priority charging requests are met.

[0085] Further, the edge server generates charging instructions based on the charging strategy and the allocation of charging resources. The charging instructions guide the charging piles to perform specific charging operations, such as starting charging, adjusting charging parameters, pausing charging, etc.

[0086] Further, the edge server can monitor the charging process to ensure that the charging piles charge according to the instructions. During the monitoring process, the edge server collects real-time charging status data of the charging piles and adjusts the charging strategy based on the data.

[0087] When the charging is completed, the edge server can record the charging end time, charging power, and other information. The edge server also sends a charging end instruction to the charging pile to notify the charging pile to stop charging.

[0088] Further, the edge server collects all data during the charging process, including charging pile status data, power grid load data, charging strategy execution data, etc. The edge server analyzes the collected data to optimize future charging management.

[0089] As can be seen, in this embodiment, the edge server can effectively handle charging requests and manage charging according to the charging requests, ensuring the continuity and reliability of the charging service, improving charging efficiency, and enhancing user experience.

[0090] This embodiment monitors abnormal network signals and starts the edge server for charging management. Even if the network of the charging system is abnormal, the continuity and stability of the charging service can still be maintained. Further, when the network is abnormal, using the edge server to handle charging requests can reduce dependence on external networks, so that the charging piles can still cooperate with each other, ensuring the reliability of intelligent scheduling functions. Moreover, through the target local area network, the charging piles can better adapt to different network environments and conditions in different regions, improving the adaptability of the charging system.

[0091] In an embodiment, the charging system further includes a cloud server and an edge gateway device. The target local area network based on the edge server is established in the charging system according to the abnormal network signal, including: according to the abnormal network signal, sending a communication connection signal to the charging pile, the cloud server, and the edge gateway device respectively; and establishing a communication connection with the charging pile, the cloud server, and the edge gateway device respectively according to the communication connection signal, to obtain the target local area network based on the edge server, wherein the devices connected to the target local area network can communicate and transmit.

[0092] The communication connection signal is sent by the edge server to the charging pile, the cloud server and the edge gateway device according to the abnormal network signal, and the purpose is to inform other devices that the network state is abnormal and the localized charging management strategy needs to be started.

[0093] The target local area network allows the edge server to continue to manage the operation of the charging pile when the network is abnormal, ensures the continuity of the charging service, and the devices connected to the target local area network can communicate and transmit, realize data exchange and sharing.

[0094] Specifically, in the target local area network, the edge server can process the charging request and schedule the charging resource, and the charging pile can receive the charging instruction from the edge server and perform the charging operation according to the instruction.

[0095] Specifically, the target local area network faces network fluctuations and bandwidth limitations. Since the MQTT protocol is lightweight and suitable for low-bandwidth networks, the MQTT protocol can be selected to obtain stable and reliable communication connection. In addition, the charging pile and the edge server may come from different manufacturers, so the OCPP protocol is adopted as an open standard to support cross-vendor charging pile management, ensuring the compatibility of the system.

[0096] Optionally, the communication in the target local area network should use encryption technologies such as SSL / TLS to ensure that data is not accessed or tampered with by unauthorized users.

[0097] As can be seen, in this embodiment, the target local area network based on the edge server can be established when the network is abnormal, the local processing of the charging request and the optimization of the charging resource can be realized, that is, the data processing and management can be performed at the local network level, the dependence on the remote cloud server is reduced, and especially when the central network problem occurs, the continuity and reliability of the charging service are ensured.

[0098] In an embodiment, the processing of the charging request and the charging management according to the charging request include: analyzing the charging request to obtain charging request information; verifying whether the target charging pile initiating the charging request is in a preset whitelist according to the charging request information; and if the target charging pile is in the preset whitelist, performing charging management according to the charging request information.

[0099] The charging request information can include but is not limited to user ID, charging pile ID, expected charging time, charging power, etc.

[0100] The preset whitelist is a list defined in advance, which contains all charging piles allowed to respond to the charging request. The preset whitelist can be compiled based on the ID, location and operating condition of the charging pile, and is not limited to be unique.

[0101] In a specific implementation, the edge server checks whether the charging pile ID mentioned in the charging request appears in the white list. If the charging pile ID is valid and within the white list, the request enters the next step of processing; if not within the white list, the request can be rejected, and an error or rejection message is sent to the requester.

[0102] After confirming the legitimacy of the charging pile, the edge server allocates resources (e.g., determines charging power and duration) for the charging session, sets charging parameters, and monitors various indicators during the charging process based on the parsed charging request information (such as user demand, charging duration, and power, etc.), ensuring that the charging process is safe and efficient. In addition to basic charging services, charging management also includes providing user interface to display charging status, historical records, billing information, etc., as well as problem diagnosis and customer support services when necessary.

[0103] It can be seen that in the present embodiment, the edge server verifies whether the charging pile is in the white list to ensure that only pre-authorized charging piles can be used for charging, avoiding unauthorized access and potential security threats, improving the security of the edge server, and protecting the charging network from potential malicious attacks.

[0104] In an embodiment, if the target charging pile is in the preset white list, the charging management according to the charging request information includes: parsing the charging request information to determine the demand information of the target charging pile; obtaining the load amount in the target local area network; determining the load capacity of the target local area network according to the load amount; and determining whether to initiate a charging instruction to the target charging pile in combination with the demand information and the load capacity.

[0105] The demand information can include but is not limited to charging pile ID, expected charging time, expected charging amount or power, etc.

[0106] The load amount can be obtained by the edge server collecting load information in the current target local area network, which can include but is not limited to the charging status of other charging piles, the load condition of the power grid, etc.

[0107] In a specific implementation, sensors and meters such as smart meters, flow sensors, etc. can be installed to monitor and record key parameters such as current, voltage, etc. of each node (e.g. charging pile, power distribution equipment, etc.) in real time, and periodically or in real time send the collected data to the edge server; in the edge server, the data received from each node is summarized and analyzed to calculate the current total load, which involves data cleaning, correction and calculation to ensure the accuracy of the load, and using historical data and analysis models to predict the load trend in the future period, so as to prepare in advance and avoid the impact of load surge on the network. Among them, for charging piles with communication function, their current power usage can be set to be directly sent to the edge server as a direct data source for determining the load. In addition, according to historical data and daily operation characteristics, standard load models are established for various devices and time periods. For example, the evening and morning household charging peak, or the different use patterns of weekdays and weekends, in the absence of real-time data updates, the preset model is used to evaluate the load in a certain period. Or get the load information of the entire power grid from the power company or grid operator, which helps to understand the relative position and influence of the local area network load in the entire system. The above specific implementations can be used alone or in combination to improve the accuracy of load determination.

[0108] wherein the load capacity refers to the maximum capacity of the target local area network to provide charging services for multiple charging piles simultaneously without affecting the stability and safety of the power grid.

[0109] wherein the load capacity is usually obtained by analyzing the network usage in the current local area network, the power supply capacity of the power grid, and historical data.

[0110] wherein the edge server will make a decision on whether to send a charging instruction to the target charging pile based on the demand information of the charging pile and the load capacity of the local area network. If the edge server decides to send a charging instruction to the target charging pile, it will send the corresponding charging parameters to the charging pile through the edge server or other communication devices.

[0111] As can be seen, the edge server in this embodiment can intelligently process charging requests to ensure that the charging needs of the charging pile are met, while considering the load capacity of the target local area network to improve charging efficiency and the stability of the power grid.

[0112] In an embodiment, the combination of the demand information and the load capacity to determine whether to initiate a charging instruction to the target charging pile includes: if the load capacity meets the demand information, initiating a charging instruction to the target charging pile; if the load capacity does not meet the demand information, terminating the charging request of the target charging pile.

[0113] When the load capacity is greater than or equal to the charging demand specified in the demand information (such as the required charging current, voltage, charging duration, etc.), it indicates that the target local area network can provide charging services for multiple charging piles simultaneously under the current state, that is, it can bear the additional charging load without causing overload or other safety problems; the edge server sends a charging initiation instruction to the target charging pile, which will start charging the electric vehicle according to the specified parameters in the demand information.

[0114] In this case, the current load capacity cannot meet the charging demand in the demand information, and the edge server will terminate the charging request of the target charging pile. This situation may be because the load of the target local area network has reached the upper limit and cannot provide services for new charging requests, or in order to prevent the power grid from being overloaded, therefore, terminating the charging request of the target charging pile is to prevent power interruption or equipment damage caused by overload.

[0115] Optionally, after terminating the charging request of the target charging pile, the edge server sends a notification to the user, informing the reason for terminating the charging request, so that the user can get clear feedback and understand the reason why the charging request cannot continue, and may be advised to wait for a period of time or choose other charging stations.

[0116] In specific implementation, the load capacity can be determined by the following steps: obtaining the charging pile parameters, including its maximum output power (kW), maximum output current (A), etc.; considering the type and characteristics of the power grid connected to the charging pile, including whether it is connected to the main power grid, whether there is a backup power supply, etc., and determining the power supply capacity of the power grid and the load condition of the power grid at the charging pile connection point; the specific installation location of the charging pile also affects its load capacity, including whether it is exposed to extreme weather conditions, whether it has sufficient cooling conditions, etc.; real-time monitoring and dynamic adjustment, installing necessary sensors and monitoring equipment to track the working state of the charging pile in real time, including input / output power, current voltage, temperature, etc., by analyzing these real-time data and the charging pile itself parameters and power grid characteristics, the actual load capacity of the charging pile can be more accurately evaluated.

[0117] As can be seen, the edge server in this embodiment can intelligently manage charging requests to ensure that the charging demand of the charging pile is reasonably met, while protecting the stability of the target local area network and the charging experience of the user.

[0118] In an embodiment, after the load capacity meets the demand information, the method further comprises: obtaining charging information of the target charging pile; analyzing the charging information to obtain an importance level of each piece of information in the charging information; when there is target information in the charging information that is greater than or equal to a preset importance level, storing the target information and deleting charging information other than the target information.

[0119] The charging information can include, but is not limited to, real-time data collected from the target charging pile during the charging process, including charging status, charging power, battery status, charging rate, charging duration, etc.

[0120] The process of obtaining the charging information can be obtained by sensors and monitoring devices built into the charging pile, and then transmitted to the edge server through wired or wireless networks.

[0121] The importance level can be predefined, such as setting different levels from "general" to "very important", or based on the real-time nature of the information, the degree of influence on the charging process, etc. The specific definition can be set by humans or according to industry standards, which is not limited here.

[0122] For example, if an information directly relates to charging efficiency, such as charging power fluctuation, power conversion efficiency, etc., it may be assigned a higher importance level; relatively, if the information only involves a general description of the charging process and does not directly contribute to improving charging efficiency, its importance level may be lower.

[0123] Alternatively, information related to charging safety, such as overload warning, temperature anomaly, etc., is usually considered very important because it directly relates to the safe operation of the system; information that does not directly affect system safety may be assigned a lower importance level.

[0124] The target information can include key charging status data such as charging start time, end time, charging power, etc., which is not limited here.

[0125] Optionally, in storing the target information, the edge server regularly manages and analyzes the stored charging information to optimize future charging management strategies, for example, by analyzing historical charging data, the server can predict future charging demand and adjust the allocation of charging resources.

[0126] For information with lower importance, the edge server will delete the information, which can include redundant, non-critical or outdated data, to save storage space and improve charging efficiency.

[0127] It can be seen that, in the embodiment, the edge server can ensure that important information that has a significant impact on operation and maintenance, safety, customer service, etc. is focused on by screening and classifying the charging data, while reducing the interference of irrelevant data.

[0128] In an embodiment, after receiving the charging request of the charging pile according to the target local area network, the method further comprises: parsing the charging request to obtain a request priority of the charging request in the target local area network; and processing the charging request according to the request priority.

[0129] The charging request further comprises information such as a requested charging amount and an expected charging time, which is not limited herein.

[0130] The request priority is determined according to a preset priority rule, which can be based on factors such as the importance of the charging pile, the urgent needs of the user, and the load of the charging pile, which is not limited herein.

[0131] The edge server can sort the charging requests according to the priority of the charging requests and process the charging requests in turn. For example, high-priority requests can be processed first, while low-priority requests can be delayed if system resources permit.

[0132] Further, according to the priority of the request, the edge server can adjust the charging strategy to ensure that high-priority requests are satisfied first. For example, if there are multiple charging piles in the charging system, the edge server can allocate charging resources to high-priority charging piles first.

[0133] As can be seen, in the embodiment, the edge server can reasonably allocate charging resources according to the priority of the charging request, ensure that high-priority charging requests are satisfied first, and ensure that low-priority requests are processed reasonably.

[0134] It should be noted that in the above various embodiments, the above steps do not necessarily have a certain sequence. Those skilled in the art can understand from the description of the embodiments of the present application that the above steps can have different execution sequences in different embodiments, i.e., they can be executed in parallel, or they can be exchanged and executed, etc.

[0135] As another aspect of the embodiments of the present application, the embodiments of the present application provide a charging management device based on a charging pile. The charging management device based on the charging pile can be a software module, which comprises a plurality of instructions stored in a memory, and a processor can access the memory to call and execute the instructions to complete the charging management method based on the charging pile described in the above various embodiments.

[0136] Referring to FIG. 3, FIG. 3 is a structural schematic diagram of a charging management device based on a charging pile provided in an embodiment of the present application. The charging management device based on a charging pile 300 is applied to an edge server in a charging system, and the charging system further comprises a charging pile. As shown in FIG. 3, the charging management device based on a charging pile 300 comprises:

[0137] a monitoring unit 301 configured to monitor an abnormal network signal, wherein the abnormal network signal is a network signal sent to the edge server when a network to which the charging system belongs is abnormal;

[0138] a establishing unit 302 configured to establish a target local area network based on the edge server in the charging system according to the abnormal network signal;

[0139] a receiving unit 303 configured to receive a charging request of the charging pile according to the target local area network;

[0140] a processing unit 304 configured to process the charging request and perform charging management according to the charging request.

[0141] According to the embodiment, the abnormal network signal is monitored, and the edge server is started to perform charging management, so that the continuity and stability of the charging service can be maintained even when the network to which the charging system belongs is abnormal. Further, when the network is abnormal, the charging request is processed by using the edge server, so that the dependence on an external network can be reduced, the charging piles can still cooperate with each other, the reliability of intelligent scheduling can be ensured, and the charging piles can better adapt to network environments and conditions in different regions by using the target local area network, so that the adaptability of the charging system is improved.

[0142] In an embodiment, the charging system further comprises a cloud server and an edge gateway device, and in the step of establishing a target local area network based on the edge server in the charging system according to the abnormal network signal, the establishing unit 302 is further configured to: send a communication connection signal to the charging pile, the cloud server and the edge gateway device respectively according to the abnormal network signal; and establish a communication connection with the charging pile, the cloud server and the edge gateway device respectively according to the communication connection signal, so as to obtain the target local area network based on the edge server, wherein the devices connected to the target local area network can perform communication transmission.

[0143] In an embodiment, in the step of processing the charging request and performing charging management according to the charging request, the processing unit 304 is further configured to: analyze the charging request to obtain charging request information; verify whether a target charging pile initiating the charging request is in a preset white list according to the charging request information; and perform charging management according to the charging request information if the target charging pile is in the preset white list. In an embodiment, the charging system further comprises a cloud server and an edge gateway device, and in the step of establishing a target local area network based on the edge server in the charging system according to the abnormal network signal, the establishing unit 302 is further configured to: send a communication connection signal to the charging pile, the cloud server and the edge gateway device respectively according to the abnormal network signal; and establish a communication connection with the charging pile, the cloud server and the edge gateway device respectively according to the communication connection signal, so as to obtain the target local area network based on the edge server, wherein the devices connected to the target local area network can perform communication transmission.

[0144] In an embodiment, in the charging management according to the charging request information, if the target charging pile is in the preset white list, the processing unit 304 is further configured to: analyze the charging request information to determine demand information of the target charging pile; acquire a load amount in the target local area network; determine a load capacity of the target local area network according to the load amount; and determine whether to initiate a charging instruction to the target charging pile in combination with the demand information and the load capacity.

[0145] In an embodiment, in the determination of whether to initiate the charging instruction to the target charging pile in combination with the demand information and the load capacity, the processing unit 304 is further configured to: if the load capacity meets the demand information, initiate the charging instruction to the target charging pile; and if the load capacity does not meet the demand information, terminate the charging request of the target charging pile.

[0146] In an embodiment, after the initiation of the charging instruction to the target charging pile if the load capacity meets the demand information, the processing unit 304 is further configured to: acquire charging information of the target charging pile; analyze the charging information to obtain an importance level of each piece of information in the charging information; and when there is target information greater than or equal to a preset importance level in the charging information, store the target information and delete charging information other than the target information.

[0147] In an embodiment, after the reception of the charging request of the charging pile according to the target local area network, the processing unit 304 is further configured to: analyze the charging request to obtain a request priority of the charging request in the target local area network; and process the charging request according to the request priority.

[0148] It should be noted that the above charging management device based on a charging pile can execute the charging management method based on a charging pile provided by the embodiments of the present application, and has the corresponding function modules and beneficial effects of the execution method. Technical details not described in detail in the embodiments of the charging management device based on a charging pile can be referred to the charging management method based on a charging pile provided by the embodiments of the present application.

[0149] Referring to FIG. 4, FIG. 4 is a structural schematic diagram of an edge server according to an embodiment of the present application. As shown in FIG. 4, the edge server 400 includes a processor 401 and a memory 402. The processor 401 is in communication connection with the memory 402.

[0150] The processor 401 is configured to support the edge server to perform the corresponding functions in the charging pile-based charging management method in the above-mentioned method embodiments. The processor 401 can be a central processing unit (CPU), a network processor (NP), a hardware chip or any combination thereof. The hardware chip can be an application specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof. The PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL) or any combination thereof.

[0151] Specifically, the processor 401 can include a sending card, a receiving card and a driving chip.

[0152] The memory 402 is used to store program codes and the like. The memory 402 can include a volatile memory (VM) such as a random access memory (RAM), and can also include a non-volatile memory (NVM) such as a read-only memory (ROM), a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD), and can further include a combination of the above-mentioned memories.

[0153] The embodiments of the present application also provide a computer readable storage medium storing a computer program, the computer program including program instructions, the program instructions causing a computer to execute the charging pile-based charging management method when executed by the computer.

[0154] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by a computer program instructing related hardware. The program can be stored in a computer readable storage medium, and when the program is executed, the processes of the above-mentioned embodiment methods can be included. The storage medium can be a magnetic disc, an optical disc, a read-only memory (ROM), a random access memory (RAM), or the like.

[0155] The above disclosure is only the preferred embodiment of the present application, and of course cannot limit the scope of the right of the present application, so the equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.

Claims

1. A charging management method based on a charging pile, characterized in that, The edge server is applied to a charging system, and the charging system further comprises a charging pile, and the method comprises the following steps: An abnormal network signal is monitored, wherein the abnormal network signal is a network signal sent to the edge server when a network to which the charging system belongs is abnormal; According to the abnormal network signal, a target local area network based on the edge server is established in the charging system; According to the target local area network, a charging request of the charging pile is received; The charging request is processed, and charging management is performed according to the charging request.

2. The method of claim 1, wherein, The charging system further comprises a cloud server and an edge gateway device, and the step of establishing the target local area network based on the edge server in the charging system according to the abnormal network signal comprises the following steps: According to the abnormal network signal, a communication connection signal is sent to the charging pile, the cloud server and the edge gateway device respectively; According to the communication connection signal, communication connections are established with the charging pile, the cloud server and the edge gateway device respectively, so as to obtain the target local area network based on the edge server, wherein the devices connected to the target local area network can perform communication transmission.

3. The method of claim 1, wherein, The step of processing the charging request and performing charging management according to the charging request comprises the following steps: The charging request is parsed to obtain charging request information; According to the charging request information, it is verified whether a target charging pile initiating the charging request is in a preset white list; If the target charging pile is in the preset white list, charging management is performed according to the charging request information.

4. The method of claim 3, wherein, The step of performing charging management according to the charging request information if the target charging pile is in the preset white list comprises the following steps: The charging request information is parsed to determine demand information of the target charging pile; The load capacity of the target local area network is determined according to the load capacity. The demand information and the load capacity are combined to determine whether to initiate a charging instruction to the target charging pile. The step of combining the demand information and the load capacity to determine whether to initiate the charging instruction to the target charging pile comprises the following steps:

5. The method of claim 4, wherein, If the load capacity meets the demand information, a charging instruction is initiated to the target charging pile; If the load capacity does not meet the demand information, the charging request of the target charging pile is terminated. After the step of initiating the charging instruction to the target charging pile if the load capacity meets the demand information, the method further comprises the following steps:

6. The method of claim 5, wherein, Charging information of the target charging pile is obtained; The charging information is analyzed to obtain an importance level of each piece of information in the charging information; When there is target information greater than or equal to a preset importance level in the charging information, the target information is stored, and charging information other than the target information is deleted. After the step of receiving the charging request of the charging pile according to the target local area network, the method further comprises the following steps:

7. The method of claim 1, wherein, The charging request is parsed to obtain a request priority of the charging request in the target local area network; The charging request is processed according to the request priority. ​ 8. A charging pile-based charging management apparatus applied to an edge server in a charging system, the charging system further comprising a charging pile, the apparatus comprising: a monitoring unit configured to monitor an abnormal network signal, the abnormal network signal being a network signal sent to the edge server when a network to which the charging system belongs is abnormal; a establishing unit configured to establish a target local area network based on the edge server in the charging system according to the abnormal network signal; a receiving unit configured to receive a charging request of the charging pile according to the target local area network; a processing unit configured to process the charging request and perform charging management according to the charging request.

9. An edge server, characterized in that 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, and the processor, when executing the one or more computer programs, causing the edge server to implement the charging pile-based charging management method according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, the computer program comprising program instructions, the program instructions causing the processor to execute the charging pile-based charging management method according to any one of claims 1-7 when executed by the processor.

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