Digital control method and device for multi-module parallel test system

Abstract

The present application relates to the field of charging pile detection technology, and provides a digital control method and device for a multi-module parallel test system, the method comprising responding to a test instruction for testing a charging pile, judging whether there is a charging pile in a charging state; if so, dividing each of the charging piles into a first type of charging pile and a second type of charging pile; wherein the first type of charging pile is a charging pile in an idle state, and the second type of charging pile is a charging pile in a charging state; respectively sending a first test method to a first test module corresponding to each of the first type of charging piles, and respectively sending a second test method to a second test module corresponding to each of the second type of charging piles. The method realizes parallel testing of multiple charging piles, significantly improving the efficiency of charging pile testing.

Description

Technical Field

[0001] The present application relates to the field of charging pile detection technology, and in particular to a digital control method and device for a multi-module parallel test system. Background Art

[0002] With the popularity of electric vehicles, charging piles, as one of the key infrastructures of electric vehicles, have been widely used. The normal operation of charging piles directly affects the charging safety of electric vehicles. Therefore, the testing of charging piles has become an important part of ensuring their normal operation.

[0003] Most existing charging pile testing methods rely on manual regular testing, which is not only time-consuming and inefficient, but also difficult to achieve efficient and rapid testing of a large number of charging piles. Especially in large charging stations or charging networks, the testing capacity of a single test device is limited and it is difficult to meet the needs of actual applications. Summary of the invention

[0004] The present application provides a digital control method and device for a multi-module parallel test system to solve the problems raised by the above background technology.

[0005] In a first aspect, the present application provides a digital control method for a multi-module parallel test system, wherein the multi-module parallel test system is used to test a charging pile, wherein the multi-module parallel test system comprises a plurality of test modules, each of which is connected to a central processing unit in parallel, and each of which is connected to a unique charging pile. The method is used for a central processing unit, and the method comprises: Responding to a test instruction for testing a charging pile, determining whether there is a charging pile in a charging state; If so, each of the charging piles is divided into a first type of charging pile and a second type of charging pile; wherein the first type of charging pile is a charging pile in an idle state, and the second type of charging pile is a charging pile in a charging state; Sending a first test method to each first test module corresponding to each of the first-type charging piles, so that the first test module tests the corresponding first-type charging pile based on the first test method, and sending a second test method to each second test module corresponding to each of the second-type charging piles, so that the second test module tests the corresponding second-type charging pile based on the second test method; Obtaining the test results of each of the first test modules and the test results of each of the second test modules; For the test results of each of the second test modules, if the test result is a fault, the second-class charging pile corresponding to the second test module is controlled to stop charging, and the target first-class charging pile to replace the second-class charging pile corresponding to the second test module is determined based on the test results of each of the first test modules, and an instruction to move to the target first-class charging pile is sent to the target electric vehicle so that the target first-class charging pile charges the target electric vehicle; wherein, the target electric vehicle is the electric vehicle corresponding to the second-class charging pile corresponding to the second test module.

[0006] In a possible implementation, after determining whether there is a charging pile in a charging state, the method further includes: If not present, the first test method is sent to the test modules corresponding to each of the charging piles respectively, so that each of the test modules tests the corresponding charging pile based on the first test method.

[0007] In a possible implementation, determining, based on the test results of each of the first test modules, a target first-category charging pile that replaces the second-category charging pile corresponding to the second test module includes: For the test results of each of the first test modules, if the test result is no fault, determining that the first-category charging pile corresponding to the first test module is a first-category charging pile without fault; Respectively obtaining the distance between each of the first-category charging piles without fault and the second-category charging pile corresponding to the second test module; Determine that the fault-free first-category charging pile corresponding to the minimum distance is the target first-category charging pile.

[0008] In a possible implementation, the method in which the first test module tests the first type of charging pile corresponding to it based on the first test method includes: The first test module obtains historical charging data of the corresponding first-type charging pile, and determines the historical maximum charging power of the corresponding first-type charging pile and the charging time corresponding to the historical maximum charging power based on the historical charging data; The first test module determines whether the historical maximum charging power is greater than the rated charging power of the first type of charging pile corresponding thereto; If it is not greater than, the first test module determines that the corresponding first-type charging pile has no fault; If it is greater than, the first testing module determines whether the charging time is greater than a preset charging time; If it is not greater than, the first test module determines that the corresponding first-type charging pile has no fault; If it is greater, the first test module determines that the corresponding first type charging pile has a fault.

[0009] In a possible implementation, the method in which the second test module tests the corresponding second type of charging pile based on the second test method includes: The second test module controls a preset code scanning device to scan a graphic code on a target electric vehicle to obtain a standard function curve of the charging power of the target electric vehicle versus the battery capacity; wherein the target electric vehicle is an electric vehicle corresponding to the second type of charging pile corresponding to the second test module; The second test module collects the battery capacity data information of the electric vehicle within a preset time period and the charging power data information of the corresponding second type of charging pile at a step length of 0.001 seconds, and draws a target function curve of the charging power of the target electric vehicle within the preset time period as a function of the battery capacity based on the battery capacity data information and the charging power data information; The second testing module determines, on the standard function curve, a curve segment between a minimum battery capacity and a maximum battery capacity corresponding to the target function curve as a target curve segment; The second test module determines whether the corresponding second type charging pile has a fault based on the target function curve and the target curve segment.

[0010] In a possible implementation, the second test module determines whether the corresponding second-type charging pile has a fault based on the target function curve and the target curve segment, including: Segmenting the target function curve based on a preset curve segmentation method to obtain a plurality of first curve segments corresponding to the target function curve; Segment the target curve segment based on the curve segmentation method to obtain a plurality of second curve segments corresponding to the target function curve; For each of the first curve segments, obtaining a similarity between the first curve segment and its corresponding target second curve segment; wherein the battery capacity interval corresponding to the first curve segment is consistent with the battery capacity interval corresponding to the target second curve segment; Comparing each of the similarities with a preset similarity respectively; If any of the similarities is less than the preset similarity, the second test module determines that the corresponding second type of charging pile has a fault; If each of the similarities is not less than the preset similarity, calculating a first integral value corresponding to the target curve segment, and calculating a second integral value corresponding to the target function curve; Calculating an absolute value of a difference between the first integral value and the second integral value, and comparing the absolute value with a preset absolute value; If the absolute value is less than the preset absolute value, the second test module determines that the corresponding second type charging pile has no fault; If the absolute value is not less than the preset absolute value, the second test module determines that the corresponding second type charging pile has a fault.

[0011] In a second aspect, the present application provides a digital control device for a multi-module parallel test system, wherein the multi-module parallel test system is used to test a charging pile, wherein the multi-module parallel test system comprises a plurality of test modules, each of which is connected to a central processing unit in parallel, each of which is connected to a unique charging pile, and the device is used for a central processing unit, and the device comprises: A judgment module, used to respond to a test instruction for testing a charging pile and judge whether there is a charging pile in a charging state; A classification module, for, if there are charging piles in a charging state, classifying each of the charging piles into a first-class charging pile and a second-class charging pile; wherein the first-class charging pile is a charging pile in an idle state, and the second-class charging pile is a charging pile in a charging state; A sending module, configured to send a first test method to each first test module corresponding to each of the first-type charging piles, so that the first test module tests the corresponding first-type charging pile based on the first test method, and to send a second test method to each second test module corresponding to each of the second-type charging piles, so that the second test module tests the corresponding second-type charging pile based on the second test method; An acquisition module, used to acquire the test results of each of the first test modules and the test results of each of the second test modules; An adjustment module is used to control the second-class charging pile corresponding to the second test module to stop charging if the test result of each second test module is a fault, and determine the target first-class charging pile to replace the second-class charging pile corresponding to the second test module based on the test result of each first test module, and send an instruction to the target electric vehicle to move to the target first-class charging pile so that the target first-class charging pile charges the target electric vehicle; wherein, the target electric vehicle is the electric vehicle corresponding to the second-class charging pile corresponding to the second test module.

[0012] The present application provides a digital control method and device for a multi-module parallel test system, the method comprising: the multi-module parallel test system is used to test a charging pile, the multi-module parallel test system comprises a plurality of test modules, each of the test modules is connected to a central processing unit in parallel, each of the test modules is connected to a unique charging pile, the method is used for the central processing unit, the method comprises: responding to a test instruction for testing the charging pile, determining whether there is a charging pile in a charging state; If so, each of the charging piles is divided into a first type of charging pile and a second type of charging pile; wherein the first type of charging pile is a charging pile in an idle state, and the second type of charging pile is a charging pile in a charging state; a first test method is sent to each first test module corresponding to the first type of charging pile, so that the first test module tests the corresponding first type of charging pile based on the first test method, and a second test method is sent to each second test module corresponding to the second type of charging pile, so that the second test module tests the corresponding second type of charging pile based on the second test method; the test results of each first test module and the test results of each second test module are obtained; for the test results of each second test module, if the test result is a fault, the second type of charging pile corresponding to the second test module is controlled to stop charging, and the target first type of charging pile that replaces the second type of charging pile corresponding to the second test module is determined based on the test results of each first test module, and an instruction to move to the target first type of charging pile is sent to the target electric vehicle, so that the target first type of charging pile charges the target electric vehicle; wherein the target electric vehicle is the electric vehicle corresponding to the second type of charging pile corresponding to the second test module. This method, on the one hand, realizes parallel testing of multiple charging piles by adopting a multi-module parallel testing system, which significantly improves the efficiency of charging pile testing. Compared with the traditional manual periodic detection method, this embodiment can complete the testing of multiple charging piles in a shorter time, reduces labor costs, and can effectively reduce the waiting time for charging pile testing. On the other hand, it adopts a digital control method, and uses the central processing unit to intelligently schedule and control the testing method of each test module, which simplifies the operating process, avoids manual intervention, and improves the intelligence level of the testing process. On the other hand, the method provided in this embodiment can effectively cope with the high concurrency requirements in large-scale charging stations or charging networks, and has the ability to efficiently test large-scale charging piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0014] Figure 1 A flow chart of a digital control method for a multi-module parallel test system provided in an embodiment of the present application; Figure 2 A schematic block diagram of the structure of a digital control device for a multi-module parallel test system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are 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 are within the scope of protection of the present invention.

[0016] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0017] It should also be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in this application specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0018] It should be further understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0019] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0020] See also Figure 1 , Figure 1A flow chart of a digital control method for a multi-module parallel test system provided in an embodiment of the present application, wherein the multi-module parallel test system is used to test a charging pile, wherein the multi-module parallel test system comprises a plurality of test modules, each of which is connected to a central processing unit in parallel, each of which is connected to a unique charging pile, and wherein the method is used for a central processing unit, such as Figure 1 As shown, the digital control method of the multi-module parallel test system provided in the embodiment of the present application includes steps S1 to S4.

[0021] Step S1, responding to a test instruction for testing a charging pile, and determining whether there is a charging pile in a charging state.

[0022] Step S2: if any, divide each of the charging piles into a first type of charging pile and a second type of charging pile; wherein the first type of charging pile is a charging pile in an idle state, and the second type of charging pile is a charging pile in a charging state.

[0023] Step S3, sending the first test method to the first test modules corresponding to each of the first-type charging piles, so that the first test modules test the corresponding first-type charging piles based on the first test method, and sending the second test method to the second test modules corresponding to each of the second-type charging piles, so that the second test modules test the corresponding second-type charging piles based on the second test method.

[0024] Step S4: Obtain the test results of each of the first test modules and the test results of each of the second test modules.

[0025] Step S5: for the test results of each of the second test modules, if the test result is a fault, control the second-class charging pile corresponding to the second test module to stop charging, and determine the target first-class charging pile to replace the second-class charging pile corresponding to the second test module based on the test results of each of the first test modules, and send an instruction to the target electric vehicle to move to the target first-class charging pile so that the target first-class charging pile charges the target electric vehicle; wherein, the target electric vehicle is the electric vehicle corresponding to the second-class charging pile corresponding to the second test module.

[0026] In this embodiment, in order to ensure the charging safety of the electric vehicle, the method provided in this embodiment tests each of the charging piles at preset time intervals. Specifically, as described in the above step S1, when the time point for testing each of the charging piles is reached, a test instruction for testing the charging piles is responded to to determine whether there are any charging piles in a charging state; if there are any charging piles in a charging state, in order to ensure the accuracy of the test results of each charging pile, different testing methods are used for the charging piles in a charging state and the charging piles in an idle state. Specifically, as described in the above steps S2 to S3, each of the charging piles is divided into a first type of charging pile and a second type of charging pile, and each charging pile is tested separately. The first test module corresponding to the first type of charging pile sends a first test method, so that the first test module tests the corresponding first type of charging pile based on the first test method, and sends a second test method to the second test modules corresponding to each of the second type of charging piles, so that the second test module tests the corresponding second type of charging pile based on the second test method; to ensure the safety of the target electric vehicles corresponding to each of the second type of charging piles during the charging process, when any of the second type of charging piles fails, the above-mentioned steps S4 to S5 are used to dispatch the charging pile in a safe state to the target electric vehicle corresponding to the faulty second type of charging pile.

[0027] The method provided in this embodiment, on the one hand, realizes parallel testing of multiple charging piles by adopting a multi-module parallel testing system, which significantly improves the efficiency of charging pile testing. Compared with the traditional manual periodic detection method, this embodiment can complete the testing of multiple charging piles in a shorter time, reduces labor costs, and can effectively reduce the waiting time for charging pile testing. On the other hand, it adopts a digital control method, through the central processing unit intelligent scheduling and control of the test method of each test module, simplifies the operation process, avoids manual intervention, and improves the intelligence level of the test process. On the other hand, the method provided in this embodiment can effectively cope with the high concurrency requirements in large charging stations or charging networks, and has the ability to efficiently test large-scale charging piles.

[0028] In some embodiments, after determining whether there is a charging pile in a charging state, the method further includes the following steps: If not present, the first test method is sent to the test modules corresponding to each of the charging piles respectively, so that each of the test modules tests the corresponding charging pile based on the first test method.

[0029] Specifically, the method for each test module to test the corresponding charging pile based on the first test method includes the following steps: The test module obtains historical charging data of the corresponding charging pile, and determines the historical maximum charging power of the corresponding charging pile and the charging time corresponding to the historical maximum charging power based on the historical charging data; The testing module determines whether the historical maximum charging power is greater than the rated charging power of the corresponding charging pile; If it is not greater than, the test module determines that the corresponding charging pile has no fault; If it is greater than, the testing module determines whether the charging time is greater than a preset charging time; If it is not greater than, the test module determines that the corresponding charging pile has no fault; If it is greater, the test module determines that the corresponding charging pile has a fault.

[0030] In some embodiments, determining the target first-type charging pile to replace the second-type charging pile corresponding to the second test module based on the test results of each of the first test modules includes the following steps: For the test results of each of the first test modules, if the test result is no fault, determining that the first-category charging pile corresponding to the first test module is a first-category charging pile without fault; Respectively obtaining the distance between each of the first-category charging piles without fault and the second-category charging pile corresponding to the second test module; Determine that the fault-free first-category charging pile corresponding to the minimum distance is the target first-category charging pile.

[0031] The method provided in this embodiment can ensure that the target electric vehicle moves the shortest distance, thereby improving the user's charging experience.

[0032] In some embodiments, the method in which the first test module tests the first type of charging pile corresponding to it based on the first test method includes the following steps: The first test module obtains historical charging data of the corresponding first-type charging pile, and determines the historical maximum charging power of the corresponding first-type charging pile and the charging time corresponding to the historical maximum charging power based on the historical charging data; The first test module determines whether the historical maximum charging power is greater than the rated charging power of the first type of charging pile corresponding thereto; If it is not greater than, the first test module determines that the corresponding first-type charging pile has no fault; If it is greater than, the first testing module determines whether the charging time is greater than a preset charging time; If it is not greater than, the first test module determines that the corresponding first-type charging pile has no fault; If it is greater, the first test module determines that the corresponding first type charging pile has a fault.

[0033] In some embodiments, the method in which the second test module tests the corresponding second type of charging pile based on the second test method includes: The second test module controls a preset code scanning device to scan the graphic code on the target electric vehicle to obtain a standard function curve of the charging power of the target electric vehicle changing with the battery capacity; wherein the target electric vehicle is an electric vehicle corresponding to the second type of charging pile corresponding to the second test module; wherein the graphic code is any one of a QR code or a bar code.

[0034] The second test module collects the battery capacity data information of the electric vehicle within a preset time period and the charging power data information of the corresponding second type of charging pile at a step length of 0.001 seconds, and draws a target function curve of the charging power of the target electric vehicle within the preset time period as a function of the battery capacity based on the battery capacity data information and the charging power data information; The second testing module determines, on the standard function curve, a curve segment between a minimum battery capacity and a maximum battery capacity corresponding to the target function curve as a target curve segment; The second test module determines whether the corresponding second type charging pile has a fault based on the target function curve and the target curve segment.

[0035] In this embodiment, the second test module determines whether the corresponding second type charging pile has a fault based on the target function curve and the target curve segment, including the following steps: Segmenting the target function curve based on a preset curve segmentation method to obtain a plurality of first curve segments corresponding to the target function curve; Segment the target curve segment based on the curve segmentation method to obtain a plurality of second curve segments corresponding to the target function curve; For each of the first curve segments, obtaining a similarity between the first curve segment and its corresponding target second curve segment; wherein the battery capacity interval corresponding to the first curve segment is consistent with the battery capacity interval corresponding to the target second curve segment; specifically, respectively inputting the first curve segment and the second curve segment into a preset curve feature extraction model to obtain a first feature vector and a second feature vector, and determining a cosine value between the first feature vector and the second feature vector as the similarity; Comparing each of the similarities with a preset similarity respectively; If any of the similarities is less than the preset similarity, the second test module determines that the corresponding second type of charging pile has a fault; If each of the similarities is not less than the preset similarity, calculating a first integral value corresponding to the target curve segment, and calculating a second integral value corresponding to the target function curve; Calculating an absolute value of a difference between the first integral value and the second integral value, and comparing the absolute value with a preset absolute value; If the absolute value is less than the preset absolute value, the second test module determines that the corresponding second type charging pile has no fault; If the absolute value is not less than the preset absolute value, the second test module determines that the corresponding second type charging pile has a fault.

[0036] See also Figure 2 , Figure 2 The digital control device 100 of the multi-module parallel test system provided in the embodiment of the present application is a structural schematic block diagram. The digital control device 100 of the multi-module parallel test system is used to test the charging pile. The multi-module parallel test system includes multiple test modules, each of which is connected to the central processing unit in parallel. Each of the test modules is connected to a unique charging pile. The device is used for the central processing unit, such as Figure 2 As shown, the digital control device 100 of the multi-module parallel test system provided in the embodiment of the present application includes: The judgment module 110 is used to respond to a test instruction for testing a charging pile and judge whether there is a charging pile in a charging state.

[0037] The classification module 120 is used to classify each charging pile into a first-category charging pile and a second-category charging pile if there is a charging pile in a charging state; wherein the first-category charging pile is a charging pile in an idle state, and the second-category charging pile is a charging pile in a charging state.

[0038] The sending module 130 is used to send a first test method to the first test modules corresponding to each of the first-category charging piles, so that the first test modules test the corresponding first-category charging piles based on the first test method, and to send a second test method to the second test modules corresponding to each of the second-category charging piles, so that the second test modules test the corresponding second-category charging piles based on the second test method.

[0039] The acquisition module 140 is used to acquire the test results of each of the first test modules and the test results of each of the second test modules.

[0040] The adjustment module 150 is used to control the second-class charging pile corresponding to the second test module to stop charging if the test result of each second test module is a fault, and determine the target first-class charging pile to replace the second-class charging pile corresponding to the second test module based on the test result of each first test module, and send an instruction to the target electric vehicle to move to the target first-class charging pile so that the target first-class charging pile charges the target electric vehicle; wherein, the target electric vehicle is the electric vehicle corresponding to the second-class charging pile corresponding to the second test module.

[0041] It should be noted that technicians in the relevant technical field can clearly understand that for the convenience and simplicity of description, the specific working process of the above-described device and each module can refer to the process in the aforementioned digital control method embodiment of the multi-module parallel test system, and will not be repeated here.

[0042] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A digital control method for a multi-module parallel test system, characterized in that: The multi-module parallel test system is used to test the charging pile. The multi-module parallel test system includes multiple test modules, each of which is connected to a central processing unit in parallel. Each of the test modules is connected to a unique charging pile. The method is used for the central processing unit, and the method includes: Responding to a test instruction for testing a charging pile, determining whether there is a charging pile in a charging state; If so, each of the charging piles is divided into a first type of charging pile and a second type of charging pile; wherein the first type of charging pile is a charging pile in an idle state, and the second type of charging pile is a charging pile in a charging state; Sending a first test method to each first test module corresponding to each of the first-type charging piles, so that the first test module tests the corresponding first-type charging pile based on the first test method, and sending a second test method to each second test module corresponding to each of the second-type charging piles, so that the second test module tests the corresponding second-type charging pile based on the second test method; Obtaining the test results of each of the first test modules and the test results of each of the second test modules; For the test results of each of the second test modules, if the test result is a fault, the second-class charging pile corresponding to the second test module is controlled to stop charging, and the target first-class charging pile to replace the second-class charging pile corresponding to the second test module is determined based on the test results of each of the first test modules, and an instruction to move to the target first-class charging pile is sent to the target electric vehicle so that the target first-class charging pile charges the target electric vehicle; wherein, the target electric vehicle is the electric vehicle corresponding to the second-class charging pile corresponding to the second test module.

2. The digital control method of the multi-module parallel test system according to claim 1, characterized in that: After determining whether there is a charging pile in a charging state, the method further includes: If not present, the first test method is sent to the test modules corresponding to each of the charging piles respectively, so that each of the test modules tests the corresponding charging pile based on the first test method.

3. The digital control method of the multi-module parallel test system according to claim 1, characterized in that: The step of determining a target first-category charging pile that replaces a second-category charging pile corresponding to the second test module based on the test results of each of the first test modules includes: For the test results of each of the first test modules, if the test result is no fault, determining that the first-category charging pile corresponding to the first test module is a first-category charging pile without fault; Respectively obtaining the distance between each of the first-category charging piles without fault and the second-category charging pile corresponding to the second test module; Determine that the fault-free first-category charging pile corresponding to the minimum distance is the target first-category charging pile.

4. The digital control method of the multi-module parallel test system according to claim 1, characterized in that: The method in which the first test module tests the first type of charging pile corresponding to it based on the first test method includes: The first test module obtains historical charging data of the corresponding first-type charging pile, and determines the historical maximum charging power of the corresponding first-type charging pile and the charging time corresponding to the historical maximum charging power based on the historical charging data; The first test module determines whether the historical maximum charging power is greater than the rated charging power of the first type of charging pile corresponding thereto; If it is not greater than, the first test module determines that the corresponding first-type charging pile has no fault; If it is greater than, the first testing module determines whether the charging time is greater than a preset charging time; If it is not greater than, the first test module determines that the corresponding first-type charging pile has no fault; If it is greater, the first test module determines that the corresponding first type charging pile has a fault.

5. The digital control method of the multi-module parallel test system according to claim 1, characterized in that: The method in which the second test module tests the corresponding second type of charging pile based on the second test method includes: The second test module controls a preset code scanning device to scan a graphic code on a target electric vehicle to obtain a standard function curve of the charging power of the target electric vehicle versus the battery capacity; wherein the target electric vehicle is an electric vehicle corresponding to the second type of charging pile corresponding to the second test module; The second test module collects the battery capacity data information of the electric vehicle within a preset time period and the charging power data information of the corresponding second type of charging pile at a step length of 0.001 seconds, and draws a target function curve of the charging power of the target electric vehicle within the preset time period as a function of the battery capacity based on the battery capacity data information and the charging power data information; The second testing module determines, on the standard function curve, a curve segment between a minimum battery capacity and a maximum battery capacity corresponding to the target function curve as a target curve segment; The second test module determines whether the corresponding second type charging pile has a fault based on the target function curve and the target curve segment.

6. The digital control method of the multi-module parallel test system according to claim 5, characterized in that: The second test module determines whether the corresponding second type charging pile has a fault based on the target function curve and the target curve segment, including: Segmenting the target function curve based on a preset curve segmentation method to obtain a plurality of first curve segments corresponding to the target function curve; Segment the target curve segment based on the curve segmentation method to obtain a plurality of second curve segments corresponding to the target function curve; For each of the first curve segments, obtaining a similarity between the first curve segment and its corresponding target second curve segment; wherein the battery capacity interval corresponding to the first curve segment is consistent with the battery capacity interval corresponding to the target second curve segment; Comparing each of the similarities with a preset similarity respectively; If any of the similarities is less than the preset similarity, the second test module determines that the corresponding second type of charging pile has a fault; If each of the similarities is not less than the preset similarity, calculating a first integral value corresponding to the target curve segment, and calculating a second integral value corresponding to the target function curve; Calculating an absolute value of a difference between the first integral value and the second integral value, and comparing the absolute value with a preset absolute value; If the absolute value is less than the preset absolute value, the second test module determines that the corresponding second type charging pile has no fault; If the absolute value is not less than the preset absolute value, the second test module determines that the corresponding second type charging pile has a fault.

7. A digital control device for a multi-module parallel test system, characterized in that: The multi-module parallel test system is used to test the charging pile. The multi-module parallel test system includes a plurality of test modules, each of which is connected to the central processing unit in parallel. Each of the test modules is connected to a unique charging pile. The device is used for the central processing unit, and the device includes: A judgment module, used to respond to a test instruction for testing a charging pile and judge whether there is a charging pile in a charging state; A classification module, for, if there are charging piles in a charging state, classifying each of the charging piles into a first-class charging pile and a second-class charging pile; wherein the first-class charging pile is a charging pile in an idle state, and the second-class charging pile is a charging pile in a charging state; A sending module, configured to send a first test method to each first test module corresponding to each of the first-type charging piles, so that the first test module tests the corresponding first-type charging pile based on the first test method, and to send a second test method to each second test module corresponding to each of the second-type charging piles, so that the second test module tests the corresponding second-type charging pile based on the second test method; An acquisition module, used to acquire the test results of each of the first test modules and the test results of each of the second test modules; An adjustment module is used to control the second-class charging pile corresponding to the second test module to stop charging if the test result of each second test module is a fault, and determine the target first-class charging pile to replace the second-class charging pile corresponding to the second test module based on the test result of each first test module, and send an instruction to the target electric vehicle to move to the target first-class charging pile so that the target first-class charging pile charges the target electric vehicle; wherein, the target electric vehicle is the electric vehicle corresponding to the second-class charging pile corresponding to the second test module.

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