Charging pile test device, test system and test method

Abstract

The invention discloses a charging pile testing device, a testing system and a testing method. The charging pile testing device comprises a main control module and a plurality of testing modules, the main control module is electrically connected with each test module; each test module comprises an analog interface; the analog interface is matched with a charging gun in the charging pile; the main control module is used for sending a setting message to the charging pile through the test module when the analog interface is electrically connected with the charging pile, receiving feedback data fed back by the charging pile according to the setting message, and determining the performance state of the charging pile according to the feedback data. According to the charging pile testing device, the testing system and the testing method, the size is small, the weight is light, carrying is convenient, performance testing can be carried out on multiple charging piles at the same time, the testing efficiency is improved, and the labor cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of power electronics technology, and in particular to a charging pile testing device, a testing system and a testing method. Background Art

[0002] New energy vehicles have the characteristics of low pollution, low economic cost and high performance, and will become the mainstream of the future development of the automotive industry. The development of new energy vehicles promotes the development of its charging facilities. It is predicted that a large number of charging piles will be put into use in the future.

[0003] In order to cope with the challenges brought by the increasing popularity of charging piles, as the number of users increases, the aging and damage of charging piles are also increasing. In order to timely discover potential safety hazards and perform necessary maintenance, a variety of charging pile function and communication protocol consistency test systems have been launched on the market. However, these systems generally have the disadvantages of being bulky and inconvenient to carry, and usually can only test one charging pile during the test process. Summary of the invention

[0004] The present invention provides a charging pile testing device, a testing system and a testing method, which are small in size, light in weight and easy to carry, and can also perform performance tests on multiple charging piles at the same time, thereby improving testing efficiency and reducing labor costs.

[0005] According to one aspect of the present invention, a charging pile testing device is provided, the charging pile testing device comprising: a main control module and a plurality of testing modules; the main control module is electrically connected to each of the testing modules;

[0006] Each of the test modules includes an analog interface; the analog interface matches the charging gun in the charging pile;

[0007] The main control module is used to send a setting message to the charging pile through the test module when the analog interface is electrically connected to the charging pile, receive feedback data fed back by the charging pile according to the setting message, and determine the performance status of the charging pile according to the feedback data.

[0008] Optionally, the setting message includes a communication consistency test message;

[0009] The communication consistency test message includes a power-on and charging handshake message, a charging parameter configuration message, a charging message and a charging termination message.

[0010] Optionally, the main control module is further used to determine the communication protocol consistency test result of the charging pile according to the feedback data when the set message is the communication consistency test message.

[0011] Optionally, the setting message also includes a fault detection message.

[0012] Optionally, the test module further includes a DC boost unit, a power supply unit, a CAN box and an interface unit;

[0013] The CAN box is electrically connected to the main control module through the interface unit;

[0014] The power supply unit is electrically connected to the DC boost unit and the CAN box, and the power supply unit is used to supply power to the DC boost unit and the CAN box;

[0015] The CAN box is electrically connected to the DC boost unit; the DC boost unit is also electrically connected to the analog interface; the CAN box is used to receive the setting message sent by the main control module and the feedback data fed back by the charging pile, and is also used to control the DC boost unit to supply power to the analog interface according to the feedback data.

[0016] Optionally, the test module further includes a one-key receiving unit;

[0017] The one-key receiving unit is used to send a test instruction to the main control module when receiving a work instruction;

[0018] The main control module is further configured to send the setting message to the charging pile through the test module when receiving the test instruction.

[0019] Optionally, the main control module includes a display unit and a main control unit;

[0020] The main control unit is electrically connected to the display unit and each of the test modules;

[0021] The main control unit is used to send a setting message to the charging pile through the test module when the analog interface is electrically connected to the charging pile, receive feedback data fed back by the charging pile according to the setting message, and determine the performance status of the charging pile according to the feedback data;

[0022] The display unit is used to display the interaction data between each of the test modules and the charging pile.

[0023] Optionally, the charging pile testing device provided in this embodiment further includes a storage module;

[0024] The storage module is used to store the interaction data between each of the test modules and the charging pile.

[0025] According to another aspect of the present invention, a charging pile testing system is provided. The charging pile testing system includes a plurality of charging piles and the charging pile testing device provided by any embodiment of the present invention.

[0026] According to another aspect of the present invention, a charging pile testing method is provided, and the charging pile testing method is applied to the charging pile testing device provided in any embodiment of the present invention;

[0027] The test method includes:

[0028] The main control module sends a setting message to the charging pile through the test module when the analog interface is electrically connected to the charging pile;

[0029] The main control module receives feedback data fed back by the charging pile according to the setting message, and determines the performance status of the charging pile according to the feedback data.

[0030] An embodiment of the present invention provides a charging pile test device, which includes a main control module and multiple test modules, each of which includes an analog interface, and the analog interface is used to be electrically connected to a charging gun in a charging pile. The main control module is electrically connected to multiple test modules, so that multiple charging piles can be tested at the same time. The main control module is used to send a setting message to the charging pile through the test module, and receive feedback data fed back by the charging pile according to the setting message, and determine the performance status of the charging pile according to the feedback data. The setting message can be set according to actual test requirements. The main control module and the multiple test modules are all modularly designed, so that the charging pile test device is miniaturized, the volume and weight of the charging pile test device are reduced, and it is convenient for operation and maintenance personnel to carry it, which significantly improves the convenience and efficiency of on-site testing. In summary, the charging pile test device provided in this embodiment is small in size, light in weight, easy to carry, and can also perform performance tests on multiple charging piles at the same time, improve test efficiency, and reduce labor costs.

[0031] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 is a structural schematic diagram of a charging pile testing device provided according to an embodiment of the present invention;

[0034] Figure 2 is a structural schematic diagram of a test module provided according to an embodiment of the present invention;

[0035] Figure 3 is a structural schematic diagram of another test module provided according to an embodiment of the present invention;

[0036] Figure 4 is a structural schematic diagram of another charging pile testing device provided according to an embodiment of the present invention;

[0037] Figure 5 It is a message representation intent in the process of interaction between a charging pile test device and a charging pile provided by an embodiment of the present invention;

[0038] Figure 6 is a flow chart of a charging pile testing method provided according to an embodiment of the present invention;

[0039] Figure 7 It is a flowchart of another charging pile testing method provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0041] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0042] Figure 1 is a schematic diagram of the structure of a charging pile test device provided according to an embodiment of the present invention, with reference to Figure 1The charging pile test device 100 provided in this embodiment includes: a main control module 110 and multiple test modules 120; the main control module 110 is electrically connected to each test module 120; each test module 120 includes an analog interface 121; the analog interface 121 matches the charging gun in the charging pile 200; the main control module 110 is used to send a setting message to the charging pile 200 through the test module 120 when the analog interface 121 is electrically connected to the charging pile 200, and receive feedback data fed back by the charging pile 200 according to the setting message, and determine the performance status of the charging pile 200 according to the feedback data.

[0043] Specifically, the main control module 110 can be a laptop or an industrial computer, etc. The main control module 110 is easy to move and can be applied to a variety of operating environments, which greatly improves the application scope and flexibility of the charging pile test device 100. The main control module 110 can be detachably connected to the test module 120. Exemplarily, the main control module 110 can be electrically connected to the test module 120 through a USB interface. The charging pile 200 can be a DC charging pile. The DC charging pile has the advantages of high efficiency and fast charging, and is adapted to today's fast-paced life. The charging pile test device 100 provided in this embodiment can test the DC charging pile. The simulation interface 121 is an interface that simulates the connection with the charging pile 200 in the electric vehicle. The simulation interface 121 can be a charging gun socket, which matches the charging gun in the charging pile 200. The electrical connection between the simulation interface 121 and the charging pile 200 can be the electrical connection between the simulation interface 121 and the charging gun in the charging pile 200.

[0044] One main control module 110 can be electrically connected to multiple test modules 120 at the same time. For example, one main control module 110 is electrically connected to four test modules 120 at the same time. One main control module 110 can send setting messages to multiple test modules 120 at the same time, so that performance tests can be performed on multiple charging piles 200 at the same time, thereby improving test efficiency. In addition, the charging pile test device 100 provided in this embodiment can also be connected to an electric vehicle for communication to achieve information interaction with the electric vehicle.

[0045] The setting message can be set according to the actual test requirements. For example, the setting message can include a communication consistency test message. Sending a communication consistency test message to the charging pile 200 can enable the test device 100 to perform a protocol consistency test on the charging pile 200. The protocol consistency test refers to the verification of the implementation of the communication protocol between the electric vehicle and the charging pile 200 to ensure that it complies with relevant standards and specifications. The purpose of this test is to verify whether the communication between the charging pile 200 and the electric vehicle is carried out in accordance with the relevant standard protocol, thereby ensuring the safety, stability and compatibility of the electric vehicle charging process. The setting message can also include a fault detection message, which is a message that simulates a fault of a variety of electric vehicles, so as to realize the charging pile test device 100 to test and verify the fault response capability of the charging pile 200 when the electric vehicle fails. The setting message can also be determined according to different brands and models of electric vehicles, so that the charging pile test device 100 can test the charging pile 200 of different brands and models of electric vehicles, verify their compatibility and interoperability, and provide strong technical support for the realization of cross-brand charging of electric vehicles.

[0046] After receiving the setting message, the charging pile 200 will make corresponding feedback according to the setting message and transmit the feedback data to the corresponding test module 120. The test module 120 can process the data and then transmit it to the main control module 110. The main control module 110 determines the performance status of the charging pile 200 based on the feedback data, that is, whether the feedback after the charging pile 200 receives the setting message complies with the GB27930-2015 standard, and whether the charging pile 200 can make an appropriate response according to the actual situation of the electric vehicle.

[0047] The present embodiment provides a charging pile test device, which includes a main control module and multiple test modules, each of which includes an analog interface, and the analog interface is used to be electrically connected to the charging gun in the charging pile. The main control module is electrically connected to multiple test modules, so that multiple charging piles can be tested at the same time. The main control module is used to send a setting message to the charging pile through the test module, and receive feedback data fed back by the charging pile according to the setting message, and determine the performance status of the charging pile according to the feedback data. The setting message can be set according to actual test requirements. The main control module and the multiple test modules are all modularly designed, so that the charging pile test device is miniaturized, the volume and weight of the charging pile test device are reduced, and it is convenient for operation and maintenance personnel to carry it, which significantly improves the convenience and efficiency of on-site testing. In summary, the charging pile test device provided in this embodiment is small in size, light in weight, easy to carry, and can also perform performance tests on multiple charging piles at the same time, improve test efficiency, and reduce labor costs.

[0048] Optionally, the setting message includes a communication consistency test message; the communication consistency test message includes a power-on and charging handshake message, a charging parameter configuration message, a charging message and a charging termination message.

[0049] Specifically, the main control module sends power-on and charging handshake messages to the charging pile to test the performance status of the charging pile in the low-voltage auxiliary power-on and charging handshake stage. The main control module sends charging parameter configuration messages to the charging pile to test the performance status of the charging pile in the charging parameter configuration stage. The main control module sends charging messages to the charging pile to test the performance status of the charging pile in the charging stage. The main control module sends charging termination messages to the charging pile to test the performance status of the charging pile at the end of charging.

[0050] Protocol conformance testing can include the following aspects:

[0051] 1. Communication protocol verification: Test whether the communication between the charging pile and the electric vehicle complies with the standard protocol. This includes verification of the communication startup, data exchange, error handling and other processes. The standard protocol can be GB / T27930, IEC 61851, ISO 15118, etc.

[0052] 2. Functional verification: Confirm whether the charging pile can correctly perform the corresponding functions in different working states, such as charging start, charging, and charging end.

[0053] 3. Abnormal situation handling: Test whether the charging pile’s response meets the standards when abnormal situations occur during the communication process, such as communication interruption and error message.

[0054] Protocol consistency testing ensures that charging piles and electric vehicles can work together seamlessly in actual use, thereby improving the overall reliability of the charging network.

[0055] The charging pile testing device provided in this embodiment sends a communication consistency test message to the charging pile, and can perform protocol consistency tests on the charging piles installed on the market. It can test the consistency of the message cycle, content, fault handling, etc. of the charging pile during the low-voltage auxiliary power-on and charging handshake stage, the charging parameter configuration stage, the charging stage, and the charging end stage. It can also test whether the feedback data of the charging pile complies with the GB27930-2015 standard, and can comprehensively evaluate the overall operation of the charging pile, thereby improving the reliability and safety of the charging system.

[0056] Optionally, the main control module is further used to determine the communication protocol consistency test result of the charging pile according to the feedback data when the message is set to a communication consistency test message.

[0057] Specifically, after the charging pile is subjected to a protocol consistency test, the main control module will perform data analysis based on the feedback data to determine whether the charging pile has passed the consistency test based on the feedback data. When the communication between the charging pile and the test device fails, the main control module will output abnormal data that has failed so that the staff can check the fault condition.

[0058] Optionally, the setting message also includes a fault detection message.

[0059] Specifically, the simulation interface includes multiple interfaces and leads. When the test module receives the fault detection message, it can control the connection and disconnection of each interface with the charging pile to realize the safety inspection of the charging pile. The fault detection message can also simulate the fault condition of the battery module in the electric vehicle, so as to test the response state of the charging pile when the battery module fails. The main control module sends a fault detection message to the charging pile, which can simulate the functions of various electric vehicle error messages, thereby testing and verifying the fault response capability of the charging pile, and ensuring the safety and stability of the charging pile in actual application.

[0060] Optional, Figure 2 is a schematic diagram of a test module according to an embodiment of the present invention, with reference to Figure 2 The test module 120 provided in this embodiment also includes a DC boost unit 122, a power supply unit 123, a CAN box 124 and an interface unit 125; the CAN box 124 is electrically connected to the main control module through the interface unit 125, the power supply unit 123 is electrically connected to the DC boost unit 122 and the CAN box 124, and the power supply unit 123 is used to supply power to the DC boost unit 122 and the CAN box 123; the CAN box 124 is electrically connected to the DC boost unit 122; the DC boost unit 122 is also electrically connected to the analog interface 121; the CAN box 124 is used to receive the setting message sent by the main control module and the feedback data fed back by the charging pile, and the CAN box 124 is also used to control the DC boost unit 122 to supply power to the analog interface 121 according to the feedback data.

[0061] Specifically, the analog interface 121 includes two DC interfaces DC+, DC-, and two communication interfaces S+, S-. The DC boost unit 122 also includes a DC boost subunit, a monitoring board, an optical fiber to 485 subunit, and a 485 relay. The monitoring board monitors the charging pile and can control the 485 relay to turn on after feeding back data to the main control module. After the 485 relay is turned on, the DC boost unit 122 can supply power to the analog interface 121. Figure 3 is a schematic diagram of the structure of another test module provided according to an embodiment of the present invention, referring to Figure 3 The test module 120 also includes a switch unit 126. After the switch unit 126 is turned off, the power supply unit 123 is used to supply power to the DC boost subunit, the monitoring board, the fiber-to-485 subunit and the 485 relay.

[0062] The main control module and the test module 120 can also be connected via an optical fiber communication line, which can greatly improve the stability of data transmission. The exchange information between the main control module and the charging pile is received and sent via the CAN box 124.

[0063] Optionally, the test module also includes a one-key receiving unit; the one-key receiving unit is used to send a test instruction to the main control module when a work instruction is received; the main control module is also used to send a setting message to the charging pile through the test module when a test instruction is received.

[0064] Specifically, the one-key receiving unit may be a button, and the test instruction may be sent by the user. The user pressing the one-key receiving unit may indicate sending the test instruction to the one-key receiving unit. It can be seen that the charging pile test device provided in this embodiment also provides a one-key sending function. After the user presses the one-key receiving unit, the test device can automatically perform protocol consistency tests and fault response capability tests on multiple charging piles, thereby further improving the test efficiency.

[0065] The setting message may also include a battery status simulation message. The battery status simulation message includes the performance data of the battery in different states to test the response of the charging pile when the battery component is in different states. Exemplarily, the battery status simulation message includes the performance data of the battery component in the following states: 1DP3005 within 10 minutes, 2DP3005 outside 10 minutes, power battery current state, single cell temperature state, battery insulation state, battery connector state, BMS fault termination, BMS normal termination and charger active termination DP3007, etc.

[0066] Optional, Figure 4 is a schematic diagram of the structure of another charging pile testing device provided according to an embodiment of the present invention, with reference to Figure 4 The main control module 110 includes a display unit 111 and a main control unit 112; the main control unit 112 is electrically connected to the display unit 111 and each test module 120; the main control unit 112 is used to send a setting message to the charging pile through the test module 120 when the analog interface 121 is electrically connected to the charging pile, and receive feedback data fed back by the charging pile according to the setting message, and determine the performance status of the charging pile according to the feedback data; the display unit 111 is used to display the interaction data between each test module 120 and the charging pile.

[0067] Specifically, the display unit 111 can display the interaction page between each test module 120 and the charging pile, so that the staff can check the test status of the charging pile in time.

[0068] Optionally, the charging pile testing device provided in this embodiment further includes a storage module; the storage module is used to store interaction data between each testing module and the charging pile.

[0069] Specifically, after the test module and the charging pile have completed their interaction, all data will be automatically saved in the storage module. These data can be used for subsequent analysis and diagnosis, providing comprehensive data support for operation and maintenance personnel. The interaction data can be stored in Excel files. Figure 5 This is a message representation diagram of the process of interaction between a charging pile test device and a charging pile provided by an embodiment of the present invention, reference Figure 5 The message table includes sequence number, time, frame ID (interaction address) and data (which can be a message).

[0070] This embodiment also provides a charging pile testing system, which includes a plurality of charging piles and the charging pile testing device provided by any embodiment of the present invention.

[0071] The charging pile testing system provided in this embodiment can test multiple charging piles at the same time, thereby improving testing efficiency and reducing labor costs.

[0072] This embodiment also provides a charging pile testing method, which is applied to the charging pile testing device provided in any embodiment of the present invention. Figure 6 is a flow chart of a charging pile testing method provided according to an embodiment of the present invention, with reference to Figure 6 The charging pile testing method provided in this embodiment includes the following steps:

[0073] S110 , when the analog interface is electrically connected to the charging pile, the main control module sends a setting message to the charging pile through the test module.

[0074] S120. The main control module receives feedback data from the charging pile according to the setting message, and determines the performance status of the charging pile according to the feedback data.

[0075] This embodiment provides a charging pile testing method, which can perform performance tests on multiple charging piles at the same time, improve testing efficiency, and reduce labor costs.

[0076] Figure 7 is a flow chart of another charging pile testing method provided according to an embodiment of the present invention, referring to Figure 7 The charging pile testing method provided in this embodiment includes the following steps:

[0077] S210, the main control module controls the startup of multiple test modules, and controls the test modules to communicate with corresponding charging piles.

[0078] S220. The main control module sends the power-on and charging handshake message to the charging pile corresponding to the test module through the test module during the low-voltage auxiliary power-on and charging handshake stage.

[0079] S230. During the charging parameter configuration phase, the main control module sends the charging parameter configuration message to the charging pile corresponding to the test module through the test module.

[0080] S240. During the charging phase, the main control module sends the charging message to the charging pile corresponding to the test module through the test module.

[0081] S250. During the fault testing phase, the main control module sends the fault detection message to the charging pile corresponding to the test module through the test module.

[0082] This embodiment also provides a charging pile testing method, which is applied to the charging pile testing device provided in any embodiment of the present invention. The charging pile testing method will be described in detail below, and the specific process is as follows:

[0083] 1. First, connect multiple test modules to the main control module. The main control module initializes each test module and then starts sending power-on and charging handshake messages. The actual data physical layer interaction sends the power-on and charging handshake messages to the charging pile through the above connection method and starts interaction.

[0084] 2. During the interaction process, the setting message sent by the charging pile test device reaches the charging pile. If it does, the monitoring board will send a relay opening command to the optical fiber to 485 subunit through the optical fiber, and then send the data to the 485 relay. Then the DC boost subunit will start and give the voltage to the charging gun socket. The charging pile will test whether the voltage meets the standard during this process, and will enter the next interaction process only after the test is completed.

[0085] 3. After the charging pile test device and the charging pile have exchanged power-on and charging handshake messages, they begin to enter the charging parameter configuration stage and the charging stage until the charging is completed. During the charging stage, the main control module can simulate the fault stage messages (DP.3007CST, DP.3006BST, DP.3005BSM, DP.3003BSM) of the electric vehicle through the operation interface, thereby realizing the fault simulation function of the test charging pile.

[0086] 4. After the interaction is completed, all interaction data will be automatically saved in an Excel file for subsequent analysis and recording.

[0087] The charging pile testing method provided in this embodiment has corresponding beneficial effects with the charging pile testing device provided in any embodiment of the present invention. For technical details not elaborated in this embodiment, please refer to the charging pile testing device provided in any embodiment of the present invention.

[0088] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0089] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A charging pile testing device, characterized in that: include: A main control module and a plurality of test modules; the main control module is electrically connected to each of the test modules; Each of the test modules includes an analog interface; the analog interface matches the charging gun in the charging pile; The main control module is used to send a setting message to the charging pile through the test module when the analog interface is electrically connected to the charging pile, receive feedback data fed back by the charging pile according to the setting message, and determine the performance status of the charging pile according to the feedback data.

2. The charging pile testing device according to claim 1, characterized in that: The setting message includes a communication consistency test message; The communication consistency test message includes a power-on and charging handshake message, a charging parameter configuration message, a charging message and a charging termination message.

3. The charging pile testing device according to claim 2, characterized in that: The main control module is also used to determine the communication protocol consistency test result of the charging pile according to the feedback data when the set message is the communication consistency test message.

4. The charging pile testing device according to claim 2, characterized in that: The setting message also includes a fault detection message.

5. The charging pile testing device according to claim 1, characterized in that: The test module also includes a DC boost unit, a power supply unit, a CAN box and an interface unit; The CAN box is electrically connected to the main control module through the interface unit; The power supply unit is electrically connected to the DC boost unit and the CAN box, and the power supply unit is used to supply power to the DC boost unit and the CAN box; The CAN box is electrically connected to the DC boost unit; the DC boost unit is also electrically connected to the analog interface; the CAN box is used to receive the setting message sent by the main control module and the feedback data fed back by the charging pile, and is also used to control the DC boost unit to supply power to the analog interface according to the feedback data.

6. The charging pile testing device according to claim 5, characterized in that: The test module also includes a one-key receiving unit; The one-key receiving unit is used to send a test instruction to the main control module when receiving a work instruction; The main control module is further configured to send the setting message to the charging pile through the test module when receiving the test instruction.

7. The charging pile testing device according to claim 1, characterized in that: The main control module includes a display unit and a main control unit; The main control unit is electrically connected to the display unit and each of the test modules; The main control unit is used to send a setting message to the charging pile through the test module when the analog interface is electrically connected to the charging pile, receive feedback data fed back by the charging pile according to the setting message, and determine the performance status of the charging pile according to the feedback data; The display unit is used to display the interaction data between each of the test modules and the charging pile.

8. The charging pile testing device according to any one of claims 1 to 7, characterized in that: Also included is a storage module; The storage module is used to store the interaction data between each of the test modules and the charging pile.

9. A charging pile testing system, characterized in that: The invention comprises a plurality of charging piles and a charging pile testing device according to any one of claims 1 to 8.

10. A charging pile testing method, characterized in that: The test method is applied to the charging pile test device according to any one of claims 1 to 8; The test method includes: The main control module sends a setting message to the charging pile through the test module when the analog interface is electrically connected to the charging pile; The main control module receives feedback data fed back by the charging pile according to the setting message, and determines the performance status of the charging pile according to the feedback data.

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