CN115728701A

CN115728701A - Automatic test method for load current and related components

Info

Publication number: CN115728701A
Application number: CN202211449617.2A
Authority: CN
Inventors: 赵国玲
Original assignee: Suzhou Inspur Intelligent Technology Co Ltd
Current assignee: Suzhou Inspur Intelligent Technology Co Ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-03-03

Abstract

The application relates to a method for automatically testing a load current and a related component, wherein the method comprises the following steps: calling power consumption data of the analog power supply rail, establishing a first ammeter, and introducing the first ammeter into the programmable controller; controlling a load instrument to carry out current load test by using a programmable controller, outputting a first voltage value obtained in the current load test process, and generating a first voltmeter; automatically adjusting the load current of the power test load jig by using a programmable controller, so that a second voltage value obtained in the automatic adjustment process is equal to the first voltage value; recording and deriving the current value of the power supply test load-pulling jig when the second voltage value is equal to the first voltage value, and generating a second ammeter; and extracting the current value in the second ammeter and automatically filling the current value into the pull-load test script for automatic test. The automatic calibration can be realized, the test accuracy is improved, the calibration time is saved, and the problems of cost and the like of replacing, maintaining and calibrating the power supply test pulling and carrying jig are solved.

Description

Automatic test method for load current and related components

Technical Field

The present disclosure relates to power supply testing technologies, and in particular, to an automatic test method for a pull-load current and related components.

Background

A power chip in a server, which supplies power to a CPU (central processing unit), needs to respond quickly along with the change of the dynamic load of the CPU, and in order to test the problem that the power chip obtains the dynamic response, i.e., the current precision, a VRTT load-pulling jig Gen5 toe l (a jig simulating the CPU load-pulling, which is called Gen5 toe l and is also called VRTT load-pulling jig) is needed, but it is found in the actual test process that the Gen5 toe l is used for about half a year, and the problem of inaccurate current load-pulling occurs.

The VRTT load-pulling jig Gen5 toe l needs to carry out large-current continuous load-pulling in practical use, the current can reach 550A, and the VRTT load-pulling jig works continuously in daytime and at night for 24h, and precision of a precision resistor and related operational amplifier components and parts can be caused to change after the VRTT load-pulling jig is used for a period of time, so that the phenomenon of inaccurate load-pulling is caused. For example, when 100A current is actually required to be pulled from 100a, gen5to l, the voltage drop of the output voltage is obviously inconsistent with the previous test result, and since spec of the M7 platform is relatively strict, if the current is not pulled correctly, the test result fa i l and the wrong VR FW are debugged.

When the VRTT pulling load fixture Gen5 toe l is used for a period of time and when the current pulling load is inaccurate, the problem that the Gen5 toe l is replaced or the toe l is maintained and calibrated is solved. However, the prior art has the following problems: there is no simple calibration method; the test results are inaccurate and have poor consistency; replacing a new Gen5 tol or repairing and calibrating Gen5 tol requires expensive expenses, and the replacement and maintenance cycle is long, delaying the progress of the test.

Therefore, it is desirable to provide a method and related device for automatically testing a pull-up current capable of automatically calibrating the pull-up current.

Disclosure of Invention

Accordingly, there is a need to provide an automatic testing method for pull-load current and related components thereof, which can improve the testing accuracy and save the testing time.

In one aspect, a method for automatically testing a pull-load current is provided, and the method includes:

step A: the method comprises the steps of calling power consumption data of an analog power supply track, establishing a first ammeter based on the power consumption data, and guiding the first ammeter into a programmable controller;

and B, step B: controlling a load instrument to perform a current load test based on the value of the first ammeter by using the programmable controller, outputting a first voltage value obtained in the current load test process, and generating a first voltmeter;

and C: the load-pulling current of the power supply test load-pulling jig is automatically adjusted by the programmable controller, so that a second voltage value obtained in the automatic adjustment process is equal to the first voltage value;

step D: recording and deriving the current value of the power supply test pull-load fixture when the second voltage value is equal to the first voltage value, and generating a second ammeter;

step E: and extracting the current value in the second ammeter and automatically filling the current value into a pull-load test script for automatic test.

In one embodiment, the method further comprises the following steps: the acquisition process of the first voltage value comprises the following steps: setting a first holding time and a first pause time of a pulling load current value in the current pulling load test process; setting a first acquisition frequency of the first voltage value based on the first holding time and the first dwell time; and collecting the first voltage value according to the first collection frequency.

In one embodiment, the method further comprises the following steps: the acquisition process of the second voltage value comprises the following steps: setting a second holding time and a second pause time of the pulling load current value in the automatic adjustment process; setting a second acquisition frequency of the second voltage value based on the second holding time and a second dwell time; and acquiring the second voltage value according to the second acquisition frequency.

In one embodiment, the method further comprises the following steps: defining the first holding time to be more than or equal to a second holding time, wherein the first pause time is less than or equal to a second pause time, and the first acquisition frequency is more than or equal to a second acquisition frequency.

In one embodiment, the method further comprises the following steps: before the performing, with the programmable controller, a current pull-load test based on the value of the first current meter, the method further comprises: judging whether the load meter triggers over-current protection or not; if the overcurrent protection is not triggered, judging whether the current peak value of the load instrument in a preset period is in a preset range; and if the current is within the preset range, carrying out the current load test.

In one embodiment, the method further comprises the following steps: if the overcurrent protection is triggered, transmitting a current oscillogram to a data terminal, and judging whether the current oscillogram meets a preset standard by a technician; and stopping the flow of the current load test when the current load test does not meet the preset standard.

In one embodiment, the method further comprises the following steps: a load current calibration system applied to a load current automatic test method comprises a programmable controller, a load instrument, a load board, a head adapter, a multimeter and a power supply test load jig;

the programmable controller is connected with the load instrument and the universal meter through a universal interface bus and is connected with the power supply test pull-load jig through a universal serial bus;

the load instrument is arranged on the pull-support plate, one end of the pull-support plate is connected with the power supply test pull-support jig through the head adapter, and the other end of the pull-support plate is connected with the adapter plate through the head adapter.

In another aspect, an automatic test device for a pull-load current is provided, the device including:

the first ammeter construction module is used for calling power consumption data of an analog power supply rail, establishing a first ammeter based on the power consumption data and guiding the first ammeter into the programmable controller;

the first voltmeter generating module is used for controlling the load instrument to carry out current load test based on the value of the first ammeter by utilizing the programmable controller, outputting a first voltage value obtained in the current load test process and generating a first voltmeter;

the automatic adjustment module is used for automatically adjusting the load current of the power supply test load jig by utilizing the programmable controller so that a second voltage value obtained in the automatic adjustment process is equal to the first voltage value;

the second ammeter generation module is used for recording and deriving the current value of the power supply test pull-load fixture when the second voltage value is equal to the first voltage value, and generating a second ammeter;

and the automatic test module is used for extracting the current value in the second ammeter and automatically filling the current value into the pull-load test script for automatic test.

In another aspect, a computer device is provided, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and the processor implements the following steps when executing the computer program:

In yet another aspect, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, performs the steps of:

and B: controlling a load instrument to perform a current load test based on the value of the first ammeter by using the programmable controller, outputting a first voltage value obtained in the current load test process, and generating a first voltmeter;

and C: automatically adjusting the load current of the power test load jig by using the programmable controller, so that a second voltage value obtained in the automatic adjustment process is equal to the first voltage value;

The automatic test method for the load current and the related components comprise the following steps: the method comprises the steps of calling power consumption data of an analog power supply track, establishing a first ammeter based on the power consumption data, and guiding the first ammeter into a programmable controller; controlling a load instrument to perform a current load test based on the value of the first ammeter by using the programmable controller, outputting a first voltage value obtained in the current load test process, and generating a first voltmeter; automatically adjusting the load current of the power test load jig by using the programmable controller, so that a second voltage value obtained in the automatic adjustment process is equal to the first voltage value; recording and deriving the current value of the power supply test pull-load fixture when the second voltage value is equal to the first voltage value, and generating a second ammeter; draw current value in the second ampere meter and automatic filling carry out automated test to pulling in carrying the test script, this application can realize automated calibration, and can be accomplished the disposable calibration of the required pulling load current of the power of being surveyed, save calibration time, different power tests pull load the tool after the calibration, test uniformity function promotes, make things convenient for carry out contrastive analysis between the different projects, and is further, use this power test to pull load the tool automated current calibration system after can solve the test inaccurate, less calibration time that reduces, save the change, maintenance and calibration power test pull load the expense scheduling problem of tool.

Drawings

FIG. 1 is a diagram of an exemplary embodiment of an automated pull-up current testing method;

FIG. 2 is a schematic flow chart illustrating an exemplary method for automated testing of pull-up current;

FIG. 3 is another schematic flow chart diagram illustrating an automated pull-up current testing method according to one embodiment;

FIG. 4 is a block diagram of a system for pull-up current calibration in one embodiment;

FIG. 5 is a device connection diagram of a pull-up current calibration system in one embodiment;

FIG. 6 is a block diagram of an embodiment of an automated device for testing a pull-up current;

FIG. 7 is a diagram of the internal structure of a computer device in one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The automatic test method for the pull-load current can be applied to the application environment shown in fig. 1. The terminal 102 communicates with a data processing platform disposed on the server 104 through a network, wherein the terminal 102 may be, but not limited to, various personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices, and the server 104 may be implemented by an independent server or a server cluster formed by a plurality of servers.

Example 1

In one embodiment, as shown in fig. 2, there is provided an automatic test method for pull-up current, which is described by taking the method as an example for the terminal in fig. 1, and includes the following steps:

s1: the method comprises the steps of calling power consumption data of an analog power supply rail, establishing a first ammeter based on the power consumption data, and guiding the first ammeter into a programmable controller.

It should be noted that the analog power rail is five sets of power ra il (power rails) of a CPU with the same power consumption on one platform, the power consumption data of the analog power rail is an actual current value, a first ammeter is constructed according to the actual current value, and the first ammeter is introduced into the programmable controller.

S2: and controlling a load instrument by using the programmable controller to perform current load test based on the value of the first ammeter, outputting a first voltage value obtained in the current load test process, and generating a first voltmeter.

It is to be noted that the steps specifically include: and extracting the current values in the constructed first ammeter one by one, sequentially carrying out current load-pulling tests on the basis of the extracted current values, outputting a first voltage value obtained by carrying out the load-pulling test on each current value, and compiling into a first voltmeter, wherein the first voltage value obtained in the step is a standard voltage value and can be used for reference comparison voltage in the current load-pulling test process of the load-pulling jig in the subsequent power supply test.

Wherein, the collection process of the first voltage value comprises the following steps:

setting a first holding time and a first pause time of a load current value in the current load test process;

setting a first acquisition frequency of the first voltage value based on the first holding time and the first dwell time;

and acquiring the first voltage value according to the first acquisition frequency.

Further, before the performing, by the programmable controller, a current pull-load test on the load meter based on the value of the first ammeter, the method further includes:

judging whether the load meter triggers over-current protection or not;

if the overcurrent protection is not triggered, judging whether the current peak value of the load instrument in a preset period is in a preset range;

if the current is within the preset range, carrying out the current load test;

if the overcurrent protection is triggered, transmitting a current oscillogram to a data terminal, and judging whether the current oscillogram meets a preset standard by a technician;

and stopping the flow of the current load test when the current load test does not meet the preset standard.

The step is to detect the stability of the current before the test, and when the current is relatively stable, the obtained automatic test result of the load current can be more accurate, so that the test accuracy of the whole system is improved.

S3: and automatically adjusting the load current of the power supply test load jig by using the programmable controller, so that the second voltage value obtained in the automatic adjustment process is equal to the first voltage value.

It should be noted that, the collecting process of the second voltage value includes:

setting a second holding time and a second pause time of the pulling load current value in the automatic adjustment process;

setting a second acquisition frequency of the second voltage value based on the second holding time and a second dwell time;

and acquiring the second voltage value according to the second acquisition frequency.

The first holding time is defined to be greater than or equal to a second holding time, the first pause time is defined to be less than or equal to a second pause time, the first acquisition frequency is greater than or equal to a second acquisition frequency, in order to keep the number of the two voltage values the same, when the first acquisition frequency is greater than the second acquisition frequency, the first voltage values in the preset time range of the same point are averaged, and the method is also adopted under other similar conditions, for example, when the first holding time is greater than the second holding time.

S4: and recording and deriving the current value of the power supply test pull-loading jig when the second voltage value is equal to the first voltage value, and generating a second ammeter.

S5: and extracting the current value in the second ammeter, and automatically filling the current value into a pull-load test script for automatic test.

It should be noted that the second ammeter is a calibration current value table of Gen5 tol (a jig simulating CPU pull load, named Gen5 tol, also called VRTT pull load jig, i.e. power test pull load jig), and is introduced into the pull load test script for subsequent automated test of the power test pull load jig.

In the above automatic test method for pull-load current, the method comprises: the method comprises the steps of calling power consumption data of an analog power supply track, establishing a first ammeter based on the power consumption data, and guiding the first ammeter into a programmable controller; controlling a load instrument to perform a current load test based on the value of the first ammeter by using the programmable controller, outputting a first voltage value obtained in the current load test process, and generating a first voltmeter; automatically adjusting the load current of the power test load jig by using the programmable controller, so that a second voltage value obtained in the automatic adjustment process is equal to the first voltage value; recording and deriving the current value of the power supply test pull-load fixture when the second voltage value is equal to the first voltage value, and generating a second ammeter; draw current value in the second ampere meter and automatic filling carry out automated test to pulling in carrying the test script, this application can realize automated calibration, and can be accomplished the disposable calibration of the required pulling load current of the power of being surveyed, save calibration time, different power tests pull load the tool after the calibration, test uniformity function promotes, make things convenient for carry out contrastive analysis between the different projects, and is further, use this power test to pull load the tool automated current calibration system after can solve the test inaccurate, less calibration time that reduces, save the change, maintenance and calibration power test pull load the expense scheduling problem of tool.

It should be understood that although the various steps in the flow charts of fig. 2-3 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not limited to being performed in the exact order illustrated and, unless explicitly stated herein, may be performed in other orders. Moreover, at least some of the steps in fig. 2-3 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed alternately or alternatingly with other steps or at least some of the sub-steps or stages of other steps.

Example 2

In one embodiment, as shown in fig. 4-5, there is provided a pull-up current calibration system applied to a pull-up current automated testing method, the system comprising: programmable controller, load appearance, draw the support plate, head to connect adapter, multimeter and power test draw and carry the tool, wherein:

the load instrument is arranged on the pull-support plate, one end of the pull-support plate is connected with the power supply test pull-support jig through the head-to-head adapter, and the other end of the pull-support plate is connected with the adapter plate through the head-to-head adapter.

Specifically, as shown in fig. 4-5, the programmable controller (PC control) is connected to the load meter and the multimeter through the USB-GP ib line, and is connected to Gen5 tol through the USB-USB line; the I nterplotter adapter plate is arranged in a main board CPU socket (a CPU slot can be internally provided with a CPU, and can also be internally provided with an I nterplotter), a Load board (a board card which can be pulled and loaded, a pull-loading board for short) is required to be connected to the I nterplotter adapter plate through a head-to-head adapter (a board card of which the upper and lower surfaces are provided with contact pins and can be connected with the I nterplotter, the Load board and Gen5 tol), and then Gen5 tol (a jig which simulates the pulling and loading of the CPU, the name is Gen5 tol, and the name is also called VRTT pull-loading jig) is arranged on the Load board through the head-to-head; the Load line connects the pull Load point of the power to be tested on the Load board with the Load meter.

Wherein, there is the point of carrying that draws of each measured voltage above the Load board, can install on Load line to the Load appearance, can draw the year to actual current through the Load appearance, in addition, the universal meter is connected and is surveyed the voltage measurement point on Gen5too l, wherein, PC controller can automatic control the Load appearance and draw according to first ampere meter and carry, can read the output voltage on the universal meter simultaneously, also can automatic adjustment Gen5too l on draw the year current, and can derive different current value table and voltage value table, and save.

Further, the test flow executed based on the system is as follows: at first, five sets of power ra i l (power supply rails) load ammeters of a CPU with the same power consumption on a platform need to be manufactured, namely a first ammeter, for example, a first ammeter of a 350W + HBM M7 platform; the load instrument is led into a PC controller, the load instrument can set and pull the current value in a first ammeter under the control of the PC controller, meanwhile, the PC controller can monitor the output voltage of the multimeter, finally, a first voltmeter is led out, the PC controller automatically adjusts the pull-load current on Gen5 tol, the output voltage (namely, a second voltage value) is enabled to be equal to the value in the first voltmeter, the current value on Gen5 tol at the moment is recorded, and finally, a Gen5 tol calibration current value table, namely, a second ammeter is led out.

And finally, extracting each calibrated load current value by the PC controller, automatically filling the load current value into a load test script, and carrying out automatic test.

For specific limitations of the pull-up current calibration system, reference may be made to the above limitations of the pull-up current automated testing method, which are not described herein again. The various modules in the pull-up current calibration system described above may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

Example 3

In one embodiment, as shown in fig. 6, there is provided an automatic test device for a pull-up current, comprising: first ampere meter construction module, first voltmeter generation module, automatic adjustment module, second ampere meter generation module and automatic test module, wherein:

the first voltmeter generation module is used for utilizing the programmable controller to control the load instrument to perform current load-pulling test based on the value of the first ammeter, outputting a first voltage value obtained in the current load-pulling test process and generating a first voltmeter;

the automatic adjustment module is used for automatically adjusting the load current of the power supply test load fixture by using the programmable controller so as to enable a second voltage value obtained in the automatic adjustment process to be equal to the first voltage value;

the second ammeter generation module is used for recording and deriving the current value of the power supply test load-pulling jig when the second voltage value is equal to the first voltage value, and generating a second ammeter;

Further, the device further comprises a data acquisition module, wherein the data acquisition module is specifically used for:

setting a first holding time and a first pause time of a pulling load current value in the current pulling load test process;

collecting the first voltage value according to the first collection frequency;

collecting the second voltage value according to the second collection frequency;

wherein the first holding time is defined to be greater than or equal to a second holding time, the first dwell time is defined to be less than or equal to a second dwell time, and the first acquisition frequency is defined to be greater than or equal to a second acquisition frequency.

Furthermore, the device further comprises a current stability testing module, wherein the current stability testing module is specifically used for:

judging whether the load instrument triggers over-current protection or not;

if the overcurrent protection is not triggered, judging whether the current peak value of the load instrument is in a preset range in a preset period;

if the current is within the preset range, carrying out the current load test;

For the specific definition of the pull-load current automatic testing apparatus, reference may be made to the definition of the pull-load current automatic testing method in the foregoing, and details are not described herein again. All or part of each module in the automatic load current testing device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent of a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

Example 4

In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 7. The computer device comprises a processor, a memory, a network interface, a display screen and an input device which are connected through a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program to run on the non-volatile storage medium. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to realize an automatic test method of the load current. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.

Those skilled in the art will appreciate that the architecture shown in fig. 7 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, there is provided a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:

s1: calling power consumption data of an analog power supply rail, establishing a first ammeter based on the power consumption data, and introducing the first ammeter into a programmable controller;

s2: controlling a load instrument to perform a current load test based on the value of the first ammeter by using the programmable controller, outputting a first voltage value obtained in the current load test process, and generating a first voltmeter;

s3: automatically adjusting the load current of the power test load jig by using the programmable controller, so that a second voltage value obtained in the automatic adjustment process is equal to the first voltage value;

s4: recording and deriving the current value of the power supply test pull-loading jig when the second voltage value is equal to the first voltage value, and generating a second ammeter;

s5: and extracting the current value in the second ammeter and automatically filling the current value into a pull-load test script for automatic test.

In one embodiment, the processor when executing the computer program further performs the steps of:

judging whether the load instrument triggers over-current protection or not;

if the current is within the preset range, carrying out the current load test;

and when the current does not meet the preset standard, stopping the flow of the current load test.

Example 5

In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:

s4: recording and deriving the current value of the power supply test pull-load fixture when the second voltage value is equal to the first voltage value, and generating a second ammeter;

In one embodiment, the computer program when executed by the processor further performs the steps of:

and collecting the first voltage value according to the first collection frequency.

judging whether the load instrument triggers over-current protection or not;

if the current is within the preset range, carrying out the current load test;

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), rambus Direct RAM (RDRAM), direct Rambus Dynamic RAM (DRDRAM), and Rambus Dynamic RAM (RDRAM), among others.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.

Claims

1. An automatic test method for a pull-load current, which is characterized by comprising the following steps:

the method comprises the steps of calling power consumption data of an analog power supply track, establishing a first ammeter based on the power consumption data, and guiding the first ammeter into a programmable controller;

controlling a load instrument to perform a current load test based on the value of the first ammeter by using the programmable controller, outputting a first voltage value obtained in the current load test process, and generating a first voltmeter;

automatically adjusting the load current of the power test load jig by using the programmable controller, so that a second voltage value obtained in the automatic adjustment process is equal to the first voltage value;

recording and deriving the current value of the power supply test pull-load fixture when the second voltage value is equal to the first voltage value, and generating a second ammeter;

and extracting the current value in the second ammeter, and automatically filling the current value into a pull-load test script for automatic test.

2. The method for automatically testing the pull-up current according to claim 1, wherein the collecting process of the first voltage value comprises:

3. The method for automatically testing the pull-up current according to claim 1, wherein the collecting process of the second voltage value comprises:

4. The method according to claim 2, wherein the first holding time is greater than or equal to a second holding time, the first pause time is less than or equal to a second pause time, and the first sampling frequency is greater than or equal to a second sampling frequency.

5. The method for automatically testing the pull-up current according to claim 1, wherein before the step of controlling the load meter by the programmable controller to perform the current pull-up test based on the value of the first ammeter, the method further comprises:

judging whether the load instrument triggers over-current protection or not;

and if the current is within the preset range, carrying out the current load test.

6. The method for automatically testing the pull-up current according to claim 5, further comprising:

7. A pull-load current calibration system applied to the pull-load current automatic test method according to claim 1, wherein the system comprises a programmable controller, a load meter, a pull-load board, a head-to-head adapter, a multimeter and a power supply test pull-load fixture;

8. An automated pull-load current testing device, the device comprising:

9. A computer arrangement comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1 to 6 when executing the computer program.

10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.