CN117022002A - Electric automobile charging system and charging method - Google Patents

Electric automobile charging system and charging method Download PDF

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Publication number
CN117022002A
CN117022002A CN202310855237.7A CN202310855237A CN117022002A CN 117022002 A CN117022002 A CN 117022002A CN 202310855237 A CN202310855237 A CN 202310855237A CN 117022002 A CN117022002 A CN 117022002A
Authority
CN
China
Prior art keywords
charging
service area
robot
mobile
server
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310855237.7A
Other languages
Chinese (zh)
Inventor
冯雅卫
宋圆圆
闫金娣
魏峥
郭冬艳
孙保康
刘宽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Zhengchen Polytron Technologies Co ltd
Original Assignee
Shandong Zhengchen Polytron Technologies Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Zhengchen Polytron Technologies Co ltd filed Critical Shandong Zhengchen Polytron Technologies Co ltd
Priority to CN202310855237.7A priority Critical patent/CN117022002A/en
Publication of CN117022002A publication Critical patent/CN117022002A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/66—Data transfer between charging stations and vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The application provides an electric automobile charging system, comprising: the mobile charging system comprises a server, a user terminal, a charging service area gateway and a mobile charging robot; the server is used for receiving a charging request sent by the user terminal, matching a corresponding charging service area gateway according to the positioning information of the user terminal, and issuing a charging task instruction to the mobile charging robot in the charging service area through the charging service area gateway; the charging service area gateway is used for receiving the charging task instruction sent by the server and forwarding the charging task instruction to the corresponding mobile charging robot; the mobile charging robot receives a charging task instruction issued by the server, moves to a designated position and charges the electric automobile. According to the application, the mobile charging robot can be called to charge the electric automobile, the automobile does not need to be driven to a fixed charging parking space, the binding relation between the current charging pile and the parking space is relieved, and the problem that the charging parking space in the current charging station is easily occupied by the fuel automobile to influence the charging of the electric automobile is solved.

Description

Electric automobile charging system and charging method
Technical Field
The application relates to the technical field of electric automobile charging, in particular to an electric automobile charging system and a charging method.
Background
Along with the continuous enhancement of environmental awareness, the automobile industry is undergoing great revolution, and electric automobile walks into people's life gradually, and electric automobile is a green, environment-friendly vehicle, can reduce harmful gas and pollutant such as fine particulate matter that traditional fuel automobile discharged by a wide margin, can effectively improve the atmospheric environment, simultaneously, electric automobile can also effectively reduce the fuel that traditional fuel automobile consumed, also has important meaning to the protection and the sustainable development of energy.
In recent years, more and more consumers choose to purchase new energy automobiles, the new energy automobiles occupy larger proportion in traffic, but have factors which restrict development of the electric automobiles, the biggest obstacle is that the endurance mileage of the batteries of the electric automobiles is limited, and in order to meet the daily requirements of the new energy automobiles, electric automobile charging stations are arranged in public places in many cities, and the number of basic charging facilities is increased so as to solve the problem of difficult electric automobile charging.
At present, an electric vehicle charging station adopts an open type design and an unmanned management mode, a charging parking space in the charging station is fixed, a fuel vehicle and an electric vehicle can freely enter and exit, so that the charging special parking space is often occupied by the fuel vehicle for a long time, the electric vehicle cannot be charged in time, and the normal use of the electric vehicle and the driving experience of an electric vehicle user are seriously influenced.
Disclosure of Invention
The application provides an electric vehicle charging system and a charging method, which aim to solve the problem that an electric vehicle cannot be charged in time due to the fact that a special parking space for charging in the existing electric vehicle charging station is frequently occupied by a fuel vehicle.
In a first aspect, the present application provides an electric vehicle charging system, comprising: the mobile charging system comprises a server, a user terminal in communication connection with the server, a charging service area gateway in communication connection with the server and a mobile charging robot in communication connection with the charging service area gateway;
the signal coverage area of the charging service area gateway is a charging service area, and a plurality of mobile charging robots are arranged in the charging service area;
the user terminal is used for sending a charging request to the server;
the server is used for receiving a charging request sent by the user terminal, matching a corresponding charging service area gateway according to the positioning information of the user terminal, and issuing a charging task instruction to the mobile charging robot in the charging service area through the charging service area gateway;
the charging service area gateway is used for receiving the charging task instruction sent by the server and forwarding the charging task instruction to the corresponding mobile charging robot;
the mobile charging robot is used for receiving a charging task instruction issued by the server through a charging service area gateway corresponding to the mobile charging robot, moving to a designated position and charging the electric automobile.
Preferably, each mobile charging robot is provided with a charging terminal corresponding to the mobile charging robot;
the charging terminal is used for charging the mobile charging robot stopped on the charging terminal, and the mobile charging robot enters an available state when the mobile charging robot is electrically connected with the charging terminal and the residual electric quantity is larger than a preset electric quantity threshold value;
the charging service area gateway is further used for sending the positioning information of the mobile charging robots in the available state to the server, and the server only sends a charging task instruction to the mobile charging robots in the available state.
Preferably, the server further stores an electronic map of each charging service area, and the server matches the corresponding gateway of the charging service area according to the positioning information of the user terminal, then selects the mobile charging robot closest to the user and in a usable state as the target charging robot for executing the charging task according to the electronic map of the charging service area, the positioning information of the mobile charging robot and the positioning information of the user terminal for sending the charging request.
Preferably, the server is further configured to generate a charging task instruction according to the electronic map of the charging service area, the positioning information of the user terminal, and the positioning information of the mobile charging robot executing the charging task, and send the charging task instruction to the designated mobile charging robot through the corresponding charging service area gateway.
In a second aspect, the present application further provides an electric vehicle charging method, where the method is applied to the electric vehicle charging system, and the method includes:
s1: the server receives a charging request sent by a user terminal;
s2: the server matches the corresponding charging service area gateway according to the positioning information of the user terminal;
s3: the server determines a mobile charging robot executing the charging task and issues a charging task instruction to the mobile charging robot;
s4: and the mobile charging robot executes the charging task according to the charging task instruction.
Preferably, step S2 further comprises:
step S21: the server acquires positioning information of the user terminal;
step S22: the server judges whether the user terminal is positioned in the signal coverage range of the service area gateway according to the positioning information;
step S23: if the user terminal is located in the signal coverage range of the service area gateway, the service area gateway is matched with the user terminal, otherwise, prompt information which is not located in the charging service area is returned to the user terminal.
Preferably, step S3 further comprises:
step S31: the server acquires positioning information of all mobile charging robots in an available state in a service area gateway signal coverage area matched with the user terminal;
step S32: the server selects the mobile charging robot closest to the user terminal to perform the task;
step S33: the server generates a charging control instruction and issues the charging control instruction to the corresponding mobile charging robot.
Preferably, step S4 further comprises:
step S41: the mobile charging robot moves to the position where the positioning information of the user terminal is located according to the charging task instruction;
step S42: the mobile charging robot obtains the operation of a user to charge the electric automobile;
step S43: and after the charging task is finished, the mobile charging robot returns to the charging terminal corresponding to the mobile charging robot for charging.
The application has the advantages that the electric automobile can be charged through the mobile charging robot, the binding relation between the current charging pile and the parking space is relieved, an electric automobile owner does not need to drive the automobile to a fixed charging parking space, the electric automobile cannot be charged because the charging parking space is occupied by the fuel automobile, the normal use of the electric automobile is influenced, and the problem that the charging of the electric automobile is influenced because the charging parking space is easy to be occupied by the fuel automobile in the current charging station is solved.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an electric vehicle charging system.
Fig. 2 is a schematic diagram of a charging method of an electric vehicle.
Detailed Description
The application provides an electric vehicle charging system, which aims to solve the problem that a charging parking space is easily occupied by a fuel vehicle and the charging of the electric vehicle is influenced in the current charging station.
The system can be used in various occasions, such as a district parking lot, an expressway service area and the like, and based on the system, a charging station completely based on a mobile charging robot can be designed to prevent the problem that a fuel vehicle influences the charging of the electric vehicle, and the system can also be applied to the existing charging station to serve as a standby charging measure when the electric vehicle occupies a charging parking space by the fuel vehicle.
The terms "comprising" or "including" as used in various embodiments of the present application in an electric vehicle charging system indicate the presence of the disclosed functions, operations or elements, and are not limited to the addition of one or more functions, operations or elements. Furthermore, as used in various embodiments of the present disclosure, the terms "comprises," "comprising," and their cognate terms are intended to refer to a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be interpreted as first excluding the existence of or increasing likelihood of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
As shown in fig. 1, the present application provides an electric vehicle charging system, comprising: server, user terminal, charging service area gateway and mobile charging robot.
The signal coverage area of the charging service area gateway is one charging service area, and the number of the charging service area gateways can be 1, 2, 3 or more, which is not limited in the application.
The charging service area is internally provided with a plurality of mobile charging robots, each mobile charging robot is provided with a charging terminal corresponding to the mobile charging robots, and the number of the mobile charging robots can be determined according to the actual situation of the charging station, so that the application is not limited to the situation.
In order to ensure that the residual electric quantity of the mobile charging robot for executing the charging task can meet the charging requirement of the electric automobile, in the embodiment, when the mobile charging robot does not execute the charging task or after the last charging task is executed, the mobile charging robot can automatically stop to a charging terminal corresponding to the mobile charging robot for charging, and only the mobile charging robot is electrically connected with the charging terminal and can enter a usable state when the residual electric quantity is larger than a preset electric quantity threshold value, and only the mobile charging robot in the usable state can receive a charging task instruction of a server to execute the charging task, and the server can acquire information of the mobile charging robot in the usable state in the charging service area through a charging service area gateway in real time.
In this embodiment, the user terminal is configured to send a charging request to the server, where the user terminal may be a smart phone, a tablet computer, or a computer client, and an electric vehicle owner may send the charging request to the server by operating a related web page, APP, or a WeChat applet on the user terminal.
The server can obtain the positioning information of the user terminal at the same time when receiving the charging request sent by the user terminal, and matches the corresponding charging service area gateway according to the positioning information of the user terminal, and after matching the corresponding charging service area gateway, according to the prestored electronic map of the charging service area, the mobile charging robot positioning information and the positioning information of the user terminal sending the charging request, selects the mobile charging robot which is closest to the user and is in a usable state as the target charging robot for executing the charging task, and generates a charging task instruction according to the electronic map of the charging service area, the positioning information of the user terminal and the positioning information of the mobile charging robot for executing the charging task, and sends the charging task instruction to the corresponding charging service area gateway, the mobile charging robot forwards the charging task instruction to the appointed mobile charging robot, and the electric vehicle owner can charge the electric vehicle through the mobile charging robot.
According to the electric vehicle charging method, the electric vehicle can be charged through the mobile charging robot, so that the binding relation between the current charging pile and the parking space is relieved, an electric vehicle owner does not need to drive the vehicle to a fixed charging parking space, the electric vehicle cannot be charged because the charging parking space is occupied by the fuel vehicle, normal use of the electric vehicle is affected, and the problem that the charging of the electric vehicle is affected because the charging parking space is easily occupied by the fuel vehicle in the current charging station is solved.
In an embodiment of the present application, according to the above electric vehicle charging system, the present application further constructs an electric vehicle charging method, as shown in fig. 2, including:
step S1: the server receives a charging request sent by a user terminal;
specifically, the server can receive a charging request sent by an electric automobile owner through a user terminal, the user terminal can be a smart phone, a tablet computer or a computer client, and the electric automobile owner can send the charging request to the server through operating a related webpage, an APP or a WeChat applet on the user terminal.
Step S2: and the server matches the corresponding charging service area gateway according to the positioning information of the user terminal.
Specifically, step S2 further includes:
step S21: the server acquires the positioning information of the user terminal.
When an electric car owner needs to use the mobile charging robot to charge, the charging request needs to be sent to the server through the user terminal, and at the moment, positioning information is sent to the server, and the server can acquire the positioning information of the user terminal.
Step S22: and the server judges whether the user terminal is positioned in the signal coverage range of the service area gateway according to the positioning information.
The server extracts longitude and latitude information from the acquired user terminal positioning information, compares the longitude and latitude information with longitude and latitude information of all service area electronic maps stored in the server, and judges that the user terminal is positioned in the signal coverage range of the service area gateway if the longitude and latitude information position in the user terminal positioning information is within the longitude and latitude information range of any service area.
Step S23: if the user terminal is located in the signal coverage range of the service area gateway, the service area gateway is matched with the user terminal, otherwise, prompt information which is not located in the charging service area is returned to the user terminal.
If the server judges that the user terminal is located in the service area according to the positioning information, the service area gateway is matched with the user terminal, and the step S3 is carried out, a mobile charging robot for executing the charging task is determined in the service area, a charging task instruction is issued to the mobile charging robot, and if the server judges that the user terminal is not located in the service area according to the positioning information, prompt information which is not located in the charging service area is returned to the user terminal, so that an electric vehicle owner can be prompted to drive into the service area.
Step S3: the server determines the mobile charging robot executing the charging task and issues a charging task instruction to the mobile charging robot.
Specifically, step S3 specifically includes:
step S31: the server acquires the positioning information of all mobile charging robots in an available state in the coverage range of the gateway signal of the service area matched with the user terminal.
The server can acquire positioning information of the mobile charging robots in the charging service area in an available state in real time through the charging service area gateway, wherein the mobile charging robots in the available state are mobile charging robots which are electrically connected with the charging terminal and have residual electric quantity larger than a preset electric quantity threshold value.
Step S32: the server selects the mobile charging robot closest to the user terminal in the charging service area as the mobile charging robot for executing the task.
And the server calculates the distance information between all the mobile charging robots in the available state and the user terminal according to the electronic map of the charging service area, the positioning information of the user terminal and the positioning information of all the mobile charging robots in the available state in the service area, and selects the mobile charging robot nearest to the user terminal as the mobile charging robot for executing the task.
Step S33: the server generates a charging control instruction and issues the charging control instruction to the corresponding mobile charging robot.
And the server generates a charging control instruction according to the charging service area electronic map, the positioning information of the user terminal and the positioning information of the mobile charging robot executing the task, and issues the charging control instruction to the corresponding mobile charging robot through the service area gateway.
Step S4: and the mobile charging robot executes the charging task according to the charging task instruction.
Specifically, step S4 includes:
step S41: and the mobile charging robot moves to the position where the positioning information of the user terminal is located according to the charging task instruction.
The mobile charging robot receives a charging control instruction issued by the server through the corresponding service area gateway and moves to the position where the positioning information of the user terminal is located according to the charging control instruction.
Step S42: the mobile charging robot obtains operation of a user to charge the electric automobile.
After the mobile charging robot moves to the appointed position, an electric car owner can charge the electric car by operating a charging gun arranged on the mobile charging robot.
Step S43: and after the charging task is finished, the mobile charging robot returns to the charging terminal corresponding to the mobile charging robot for charging.
After the electric automobile owner finishes charging, the charging gun is replaced, and the mobile charging robot returns to the corresponding charging terminal for charging according to the charging task instruction.
Therefore, through the method, the electric vehicle can be charged through the mobile charging robot, when an electric vehicle owner only needs to be located in a charging service area, the mobile charging robot is called through the user terminal, and the electric vehicle can be charged through the charging gun arranged on the mobile charging robot without driving the vehicle to a fixed charging parking space, so that the binding relation between the current charging pile and the parking space is relieved, the electric vehicle cannot be charged because the charging parking space is occupied by the fuel vehicle, the normal use of the electric vehicle is influenced, and the problem that the charging of the electric vehicle is influenced because the charging parking space is easy to be occupied by the fuel vehicle in the current charging station is solved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. An electric vehicle charging system, comprising: the mobile charging system comprises a server, a user terminal in communication connection with the server, a charging service area gateway in communication connection with the server and a mobile charging robot in communication connection with the charging service area gateway;
the signal coverage area of the charging service area gateway is a charging service area, and a plurality of mobile charging robots are arranged in the charging service area;
the user terminal is used for sending a charging request to the server;
the server is used for receiving a charging request sent by the user terminal, matching a corresponding charging service area gateway according to the positioning information of the user terminal, and issuing a charging task instruction to the mobile charging robot in the charging service area through the charging service area gateway;
the charging service area gateway is used for receiving the charging task instruction sent by the server and forwarding the charging task instruction to the corresponding mobile charging robot;
the mobile charging robot is used for receiving a charging task instruction issued by the server through a charging service area gateway corresponding to the mobile charging robot, moving to a designated position and charging the electric automobile.
2. The electric vehicle charging system according to claim 1, wherein each mobile charging robot is provided with a charging terminal corresponding thereto;
the charging terminal is used for charging the mobile charging robot stopped on the charging terminal, and the mobile charging robot enters an available state when the mobile charging robot is electrically connected with the charging terminal and the residual electric quantity is larger than a preset electric quantity threshold value;
the charging service area gateway is further used for sending the positioning information of the mobile charging robots in the available state to the server, and the server only sends a charging task instruction to the mobile charging robots in the available state.
3. The electric vehicle charging system according to claim 2, wherein the server further stores an electronic map of each charging service area, and the server selects a mobile charging robot closest to the user and in a usable state as a target charging robot for executing the present charging task according to the electronic map of the charging service area after matching a corresponding charging service area gateway according to the positioning information of the user terminal, and the positioning information of the mobile charging robot and the positioning information of the user terminal for transmitting the charging request.
4. The electric vehicle charging system according to claim 3, wherein the server is further configured to generate a charging task instruction according to the electronic map of the charging service area, the positioning information of the user terminal, and the positioning information of the mobile charging robot performing the charging task, and send the charging task instruction to the designated mobile charging robot through the corresponding charging service area gateway.
5. A method for charging an electric vehicle, wherein the method employs the electric vehicle charging system according to any one of claims 1 to 4, and the method comprises:
s1: the server receives a charging request sent by a user terminal;
s2: the server matches the corresponding charging service area gateway according to the positioning information of the user terminal;
s3: the server determines a mobile charging robot executing the charging task and issues a charging task instruction to the mobile charging robot;
s4: and the mobile charging robot executes the charging task according to the charging task instruction.
6. The electric vehicle charging method according to claim 5, characterized in that step S2 further includes:
step S21: the server acquires positioning information of the user terminal;
step S22: the server judges whether the user terminal is positioned in the signal coverage range of the service area gateway according to the positioning information;
step S23: if the user terminal is located in the signal coverage range of the service area gateway, the service area gateway is matched with the user terminal, otherwise, prompt information which is not located in the charging service area is returned to the user terminal.
7. The electric vehicle charging method according to claim 5, characterized in that step S3 further includes:
step S31: the server acquires positioning information of all mobile charging robots in an available state in a service area gateway signal coverage area matched with the user terminal;
step S32: the server selects the mobile charging robot closest to the user terminal to perform the task;
step S33: the server generates a charging control instruction and issues the charging control instruction to the corresponding mobile charging robot.
8. The electric vehicle charging method according to claim 5, characterized in that step S4 further includes:
step S41: the mobile charging robot moves to the position where the positioning information of the user terminal is located according to the charging task instruction;
step S42: the mobile charging robot obtains the operation of a user to charge the electric automobile;
step S43: and after the charging task is finished, the mobile charging robot returns to the charging terminal corresponding to the mobile charging robot for charging.
CN202310855237.7A 2023-07-12 2023-07-12 Electric automobile charging system and charging method Pending CN117022002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310855237.7A CN117022002A (en) 2023-07-12 2023-07-12 Electric automobile charging system and charging method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310855237.7A CN117022002A (en) 2023-07-12 2023-07-12 Electric automobile charging system and charging method

Publications (1)

Publication Number Publication Date
CN117022002A true CN117022002A (en) 2023-11-10

Family

ID=88640379

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310855237.7A Pending CN117022002A (en) 2023-07-12 2023-07-12 Electric automobile charging system and charging method

Country Status (1)

Country Link
CN (1) CN117022002A (en)

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