A lithium battery testing equipment calibration method and system

Abstract

The present invention provides a lithium battery test equipment calibration method and system in the field of lithium battery test technology, the method comprising: step S1, the host computer obtains the input calibration instruction and verifies it; step S2, the host computer disconnects the output contactor of the lithium battery test equipment based on the calibration instruction and closes the dummy load contactor; step S3, the host computer starts the AC function of the lithium battery test equipment and writes the default calibration factor to the lithium battery test equipment; step S4, the host computer starts the DC function of the lithium battery test equipment, calibrates the voltage value and current value of the lithium battery test equipment based on the default calibration factor, optimizes the default calibration factor during the calibration process to obtain the optimized calibration factor and writes it into the lithium battery test equipment; step S5, the host computer verifies the calibration accuracy of the lithium battery test equipment based on the optimized calibration factor, and turns off the DC function after the verification is completed. The advantages of the present invention are: greatly improving the efficiency and reliability of the calibration of the lithium battery test equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery testing, and in particular to a lithium battery testing equipment calibration method and system. Background Art

[0002] With the rapid development of the new energy industry, lithium batteries are being used more and more widely. To ensure the safety and reliability of lithium batteries, lithium battery testing equipment plays a vital role in the production and use of lithium batteries. However, lithium battery testing equipment may produce deviations due to various reasons during use, affecting the accuracy of the test results. Therefore, lithium battery testing equipment needs to be calibrated to improve the accuracy of the test results.

[0003] For the calibration of lithium battery testing equipment, the traditional method requires a dedicated person to record the values ​​of the lithium battery testing equipment and the voltage and current meter, and perform manual calculations and calibrations. This is time-consuming and labor-intensive, and cannot avoid the disadvantages of human calculation errors.

[0004] Therefore, how to provide a lithium battery testing equipment calibration method and system to improve the efficiency and reliability of lithium battery testing equipment calibration has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a lithium battery testing equipment calibration method and system to improve the efficiency and reliability of lithium battery testing equipment calibration.

[0006] In a first aspect, the present invention provides a lithium battery testing equipment calibration method, comprising the following steps:

[0007] Step S1, the host computer obtains the input calibration instruction and verifies the calibration instruction;

[0008] Step S2, the host computer disconnects the output contactor of the lithium battery testing equipment based on the calibration instruction and closes the dummy load contactor;

[0009] Step S3: The host computer starts the AC function of the lithium battery testing device and writes a preset default calibration factor into the lithium battery testing device;

[0010] Step S4, the host computer starts the DC function of the lithium battery test device, calibrates the voltage value and the current value of the lithium battery test device based on the default calibration factor, optimizes the default calibration factor during the calibration process to obtain an optimized calibration factor, and writes the optimized calibration factor into the lithium battery test device;

[0011] Step S5, the host computer verifies the calibration accuracy of the lithium battery testing equipment based on the optimized calibration factor, and turns off the DC function after the verification is completed;

[0012] Step S6: Record the calibration log of the lithium battery testing equipment in real time, and generate a calibration report based on the calibration log.

[0013] Furthermore, the step S1 is specifically as follows:

[0014] The upper computer obtains an input calibration instruction that at least carries calibration content, a device serial number, a timestamp, and a hash value, where the hash value is obtained by performing a hash calculation on the calibration content, the device serial number, and the timestamp;

[0015] The upper computer parses the received calibration instruction to obtain the calibration content, device serial number, timestamp and hash value. After performing integrity check on the calibration content, device serial number and timestamp through the hash value, a timeliness check is performed through the timestamp, and then the legitimacy of the device serial number is checked through a preset device management table.

[0016] Furthermore, the step S2 is specifically as follows:

[0017] The host computer disconnects the output contactor of the lithium battery testing equipment based on the calibration instruction, and determines whether the output contactor is disconnected within 1S. If so, the dummy load contactor is closed; if not, a fault notification of the contactor fault is displayed.

[0018] Furthermore, the step S3 is specifically as follows:

[0019] The host computer starts the AC function of the lithium battery test equipment and determines whether the DC function is allowed to be started within 20 seconds. If so, the preset default calibration factor is written to the lithium battery test equipment; if not, a fault notification of abnormal AC function startup is displayed.

[0020] Furthermore, the step S4 is specifically as follows:

[0021] The host computer starts the DC function of the lithium battery testing equipment, outputs a first voltage and current setting value to the lithium battery testing equipment based on a preset first calibration point, collects the first voltage and current actual value through the voltage and current meter of the lithium battery testing equipment, obtains the first voltage and current output value output by the lithium battery testing equipment based on the default calibration factor, verifies the first voltage and current output value through the first voltage and current actual value, and if the verification passes, uses the default calibration factor as the optimized calibration factor; if the verification fails, outputs a second voltage and current setting value to the lithium battery testing equipment based on a preset second calibration point, collects the second voltage and current actual value and the second voltage and current output value, optimizes the default calibration factor based on the first voltage and current actual value, the first voltage and current output value, the second voltage and current actual value, and the second voltage and current output value, obtains the optimized calibration factor, and writes the optimized calibration factor into the lithium battery testing equipment.

[0022] In a second aspect, the present invention provides a lithium battery testing equipment calibration system, comprising the following modules:

[0023] The calibration instruction input module is used for the upper computer to obtain the input calibration instruction and verify the calibration instruction;

[0024] A contactor control module, used for the host computer to disconnect the output contactor of the lithium battery testing equipment and close the dummy load contactor based on the calibration instruction;

[0025] AC function start module, used for the host computer to start the AC function of the lithium battery test equipment and write the preset default calibration factor to the lithium battery test equipment;

[0026] A DC function start module, used for the host computer to start the DC function of the lithium battery test device, calibrate the voltage value and current value of the lithium battery test device based on the default calibration factor, optimize the default calibration factor during the calibration process to obtain an optimized calibration factor, and write the optimized calibration factor into the lithium battery test device;

[0027] A calibration accuracy verification module, used for the upper computer to verify the calibration accuracy of the lithium battery testing equipment based on the optimized calibration factor, and turn off the DC function after the verification is completed;

[0028] The calibration log management module is used to record the calibration log of the lithium battery testing equipment in real time and generate a calibration report based on the calibration log.

[0029] Furthermore, the calibration instruction input module is specifically used for:

[0030] The upper computer obtains an input calibration instruction that at least carries calibration content, a device serial number, a timestamp, and a hash value, where the hash value is obtained by performing a hash calculation on the calibration content, the device serial number, and the timestamp;

[0031] The upper computer parses the received calibration instruction to obtain the calibration content, device serial number, timestamp and hash value. After performing integrity check on the calibration content, device serial number and timestamp through the hash value, a timeliness check is performed through the timestamp, and then the legitimacy of the device serial number is checked through a preset device management table.

[0032] Furthermore, the contactor control module is specifically used for:

[0033] The host computer disconnects the output contactor of the lithium battery testing equipment based on the calibration instruction, and determines whether the output contactor is disconnected within 1S. If so, the dummy load contactor is closed; if not, a fault notification of the contactor fault is displayed.

[0034] Furthermore, the AC function startup module is specifically used for:

[0035] The host computer starts the AC function of the lithium battery test equipment and determines whether the DC function is allowed to be started within 20 seconds. If so, the preset default calibration factor is written to the lithium battery test equipment; if not, a fault notification of abnormal AC function startup is displayed.

[0036] Furthermore, the DC function startup module is specifically used for:

[0037] The host computer starts the DC function of the lithium battery testing equipment, outputs a first voltage and current setting value to the lithium battery testing equipment based on a preset first calibration point, collects the first voltage and current actual value through the voltage and current meter of the lithium battery testing equipment, obtains the first voltage and current output value output by the lithium battery testing equipment based on the default calibration factor, verifies the first voltage and current output value through the first voltage and current actual value, and if the verification passes, uses the default calibration factor as the optimized calibration factor; if the verification fails, outputs a second voltage and current setting value to the lithium battery testing equipment based on a preset second calibration point, collects the second voltage and current actual value and the second voltage and current output value, optimizes the default calibration factor based on the first voltage and current actual value, the first voltage and current output value, the second voltage and current actual value, and the second voltage and current output value, obtains the optimized calibration factor, and writes the optimized calibration factor into the lithium battery testing equipment.

[0038] The advantages of the present invention are:

[0039] The input calibration instruction is obtained and verified through the host computer, the output contactor of the lithium battery test equipment is disconnected based on the calibration instruction, the dummy load contactor is closed, and then the AC function of the lithium battery test equipment is started, the preset default calibration factor is written to the lithium battery test equipment, and the DC function is started. The voltage value and current value of the lithium battery test equipment are calibrated based on the default calibration factor. During the calibration process, the default calibration factor is optimized to obtain the optimized calibration factor, and the optimized calibration factor is written into the lithium battery test equipment. Then, the calibration accuracy of the lithium battery test equipment is verified based on the optimized calibration factor. After the verification is completed, the DC function is turned off, and the calibration log of the lithium battery test equipment is recorded in real time, and a calibration report is generated based on the calibration log; that is, the lithium battery test equipment is automatically calibrated through the host computer, and the default calibration factor is also optimized during the calibration process, and the calibration log is automatically recorded and a calibration report is generated. There is no need for manual recording and calculation as traditional methods, and calculation errors are avoided, thereby greatly improving the efficiency and reliability of the lithium battery test equipment calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0041] Figure 1 The present invention is a flow chart of a lithium battery testing equipment calibration method.

[0042] Figure 2 It is a structural schematic diagram of a lithium battery testing equipment calibration system of the present invention.

[0043] Figure 3 It is a schematic diagram of the hardware architecture of the present invention. DETAILED DESCRIPTION

[0044] The overall idea of ​​the technical solution in the embodiments of the present application is as follows: the lithium battery testing equipment is automatically calibrated by the host computer, the default calibration factor is also optimized during the calibration process, the calibration log is automatically recorded and a calibration report is generated, without the need for manual recording and calculation as traditionally, and calculation errors are avoided, so as to improve the efficiency and reliability of the lithium battery testing equipment calibration.

[0045] Please refer to Figures 1 to 3 As shown, a preferred embodiment of a lithium battery testing equipment calibration method of the present invention comprises the following steps:

[0046] Step S1, the host computer obtains the input calibration instruction, verifies the calibration instruction, avoids performing calibration operations based on illegal calibration instructions, and effectively improves calibration security;

[0047] Step S2, the host computer disconnects the output contactor of the lithium battery testing equipment based on the calibration instruction and closes the dummy load contactor;

[0048] Step S3, the host computer starts the AC function of the lithium battery testing device, writes a preset default calibration factor into the lithium battery testing device, and performs preliminary calibration based on the preset default calibration factor, which can effectively improve the calibration efficiency;

[0049] Step S4, the host computer starts the DC function of the lithium battery test device, calibrates the voltage value and the current value of the lithium battery test device based on the default calibration factor, optimizes the default calibration factor during the calibration process to obtain an optimized calibration factor, and writes the optimized calibration factor into the lithium battery test device;

[0050] Step S5, the host computer verifies the calibration accuracy of the lithium battery test equipment based on the optimized calibration factor, and turns off the DC function after the verification is completed; when the calibration accuracy verification action times out, it is determined whether the number of timeouts exceeds 3 times, if not, the default calibration factor is rewritten for calibration; if so, a fault notification of calibration abnormality is displayed;

[0051] Step S6: record the calibration log of the lithium battery testing equipment in real time, generate a calibration report based on the calibration log, encrypt and store the calibration log and calibration report, and back them up to the blockchain for later traceability.

[0052] The encryption of the calibration log and the calibration report is specifically as follows:

[0053] The calibration log and calibration report are encrypted by the RC2 algorithm to obtain first encrypted data, a character string of a specified length is randomly generated, the character string is added to a specified position of the first encrypted data to obtain second encrypted data, the second encrypted data is encrypted by the 3DES algorithm to obtain third encrypted data, the third encrypted data is divided based on a preset division ratio and the order is swapped to obtain fourth encrypted data, and the fourth encrypted data is encrypted by the ECDSA algorithm to obtain encrypted data.

[0054] The step S1 is specifically as follows:

[0055] The upper computer obtains an input calibration instruction that at least carries calibration content, a device serial number, a timestamp, and a hash value, where the hash value is obtained by performing a hash calculation on the calibration content, the device serial number, and the timestamp;

[0056] The upper computer parses the received calibration instruction to obtain the calibration content, device serial number, timestamp and hash value. After performing integrity check on the calibration content, device serial number and timestamp through the hash value, a timeliness check is performed through the timestamp, and then the legitimacy of the device serial number is checked through a preset device management table.

[0057] The step S2 is specifically as follows:

[0058] The host computer disconnects the output contactor of the lithium battery testing equipment based on the calibration instruction, and determines whether the output contactor is disconnected within 1S. If so, the dummy load contactor is closed; if not, a fault notification of the contactor fault is displayed.

[0059] The step S3 is specifically as follows:

[0060] The host computer starts the AC function of the lithium battery test equipment and determines whether the DC function is allowed to be started within 20 seconds. If so, the preset default calibration factor is written to the lithium battery test equipment; if not, a fault notification of abnormal AC function startup is displayed.

[0061] The step S4 is specifically as follows:

[0062] The host computer starts the DC function of the lithium battery testing equipment, outputs a first voltage and current setting value to the lithium battery testing equipment based on a preset first calibration point, collects the first voltage and current actual value through the voltage and current meter of the lithium battery testing equipment, obtains the first voltage and current output value output by the lithium battery testing equipment based on the default calibration factor, verifies the first voltage and current output value through the first voltage and current actual value, and if the verification passes, uses the default calibration factor as the optimized calibration factor; if the verification fails, outputs a second voltage and current setting value to the lithium battery testing equipment based on a preset second calibration point, collects the second voltage and current actual value and the second voltage and current output value, optimizes the default calibration factor based on the first voltage and current actual value, the first voltage and current output value, the second voltage and current actual value, and the second voltage and current output value, obtains the optimized calibration factor, and writes the optimized calibration factor into the lithium battery testing equipment.

[0063] A preferred embodiment of a lithium battery testing equipment calibration system of the present invention includes the following modules:

[0064] The calibration instruction input module is used for the upper computer to obtain the input calibration instruction, verify the calibration instruction, avoid performing calibration operations based on illegal calibration instructions, and effectively improve the calibration security;

[0065] A contactor control module, used for the host computer to disconnect the output contactor of the lithium battery testing equipment and close the dummy load contactor based on the calibration instruction;

[0066] The AC function startup module is used for the host computer to start the AC function of the lithium battery test equipment, write the preset default calibration factor to the lithium battery test equipment, and perform preliminary calibration based on the preset default calibration factor, which can effectively improve the calibration efficiency;

[0067] A DC function start module, used for the host computer to start the DC function of the lithium battery test device, calibrate the voltage value and current value of the lithium battery test device based on the default calibration factor, optimize the default calibration factor during the calibration process to obtain an optimized calibration factor, and write the optimized calibration factor into the lithium battery test device;

[0068] The calibration accuracy verification module is used for the upper computer to verify the calibration accuracy of the lithium battery test equipment based on the optimized calibration factor, and turn off the DC function after the verification is completed; when the calibration accuracy verification action times out, it is determined whether the number of timeouts exceeds 3 times. If not, the default calibration factor is rewritten for calibration; if so, a fault notification of calibration abnormality is displayed;

[0069] The calibration log management module is used to record the calibration log of the lithium battery testing equipment in real time, generate a calibration report based on the calibration log, encrypt and store the calibration log and calibration report, and back them up to the blockchain for later traceability.

[0070] The encryption of the calibration log and the calibration report is specifically as follows:

[0071] The calibration log and calibration report are encrypted by the RC2 algorithm to obtain first encrypted data, a character string of a specified length is randomly generated, the character string is added to a specified position of the first encrypted data to obtain second encrypted data, the second encrypted data is encrypted by the 3DES algorithm to obtain third encrypted data, the third encrypted data is divided based on a preset division ratio and the order is swapped to obtain fourth encrypted data, and the fourth encrypted data is encrypted by the ECDSA algorithm to obtain encrypted data.

[0072] The calibration instruction input module is specifically used for:

[0073] The upper computer obtains an input calibration instruction that at least carries calibration content, a device serial number, a timestamp, and a hash value, where the hash value is obtained by performing a hash calculation on the calibration content, the device serial number, and the timestamp;

[0074] The upper computer parses the received calibration instruction to obtain the calibration content, device serial number, timestamp and hash value. After performing integrity check on the calibration content, device serial number and timestamp through the hash value, a timeliness check is performed through the timestamp, and then the legitimacy of the device serial number is checked through a preset device management table.

[0075] The contactor control module is specifically used for:

[0076] The host computer disconnects the output contactor of the lithium battery testing equipment based on the calibration instruction, and determines whether the output contactor is disconnected within 1S. If so, the dummy load contactor is closed; if not, a fault notification of the contactor fault is displayed.

[0077] The AC function startup module is specifically used for:

[0078] The host computer starts the AC function of the lithium battery test equipment and determines whether the DC function is allowed to be started within 20 seconds. If so, the preset default calibration factor is written to the lithium battery test equipment; if not, a fault notification of abnormal AC function startup is displayed.

[0079] The DC function startup module is specifically used for:

[0080] The host computer starts the DC function of the lithium battery testing equipment, outputs a first voltage and current setting value to the lithium battery testing equipment based on a preset first calibration point, collects the first voltage and current actual value through the voltage and current meter of the lithium battery testing equipment, obtains the first voltage and current output value output by the lithium battery testing equipment based on the default calibration factor, verifies the first voltage and current output value through the first voltage and current actual value, and if the verification passes, uses the default calibration factor as the optimized calibration factor; if the verification fails, outputs a second voltage and current setting value to the lithium battery testing equipment based on a preset second calibration point, collects the second voltage and current actual value and the second voltage and current output value, optimizes the default calibration factor based on the first voltage and current actual value, the first voltage and current output value, the second voltage and current actual value, and the second voltage and current output value, obtains the optimized calibration factor, and writes the optimized calibration factor into the lithium battery testing equipment.

[0081] In summary, the advantages of the present invention are:

[0082] The input calibration instruction is obtained and verified through the host computer, the output contactor of the lithium battery test equipment is disconnected based on the calibration instruction, the dummy load contactor is closed, and then the AC function of the lithium battery test equipment is started, the preset default calibration factor is written to the lithium battery test equipment, and the DC function is started. The voltage value and current value of the lithium battery test equipment are calibrated based on the default calibration factor. During the calibration process, the default calibration factor is optimized to obtain the optimized calibration factor, and the optimized calibration factor is written into the lithium battery test equipment. Then, the calibration accuracy of the lithium battery test equipment is verified based on the optimized calibration factor. After the verification is completed, the DC function is turned off, and the calibration log of the lithium battery test equipment is recorded in real time, and a calibration report is generated based on the calibration log; that is, the lithium battery test equipment is automatically calibrated through the host computer, and the default calibration factor is also optimized during the calibration process, and the calibration log is automatically recorded and a calibration report is generated. There is no need for manual recording and calculation as traditional methods, and calculation errors are avoided, thereby greatly improving the efficiency and reliability of the lithium battery test equipment calibration.

[0083] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A lithium battery testing equipment calibration method, characterized in that: The steps include: Step S1, the host computer obtains the input calibration instruction and verifies the calibration instruction; Step S2, the host computer disconnects the output contactor of the lithium battery testing equipment based on the calibration instruction and closes the dummy load contactor; Step S3: The host computer starts the AC function of the lithium battery testing device and writes a preset default calibration factor into the lithium battery testing device; Step S4, the host computer starts the DC function of the lithium battery test device, calibrates the voltage value and the current value of the lithium battery test device based on the default calibration factor, optimizes the default calibration factor during the calibration process to obtain an optimized calibration factor, and writes the optimized calibration factor into the lithium battery test device; Step S5, the host computer verifies the calibration accuracy of the lithium battery testing equipment based on the optimized calibration factor, and turns off the DC function after the verification is completed; Step S6: Record the calibration log of the lithium battery testing equipment in real time, and generate a calibration report based on the calibration log.

2. A lithium battery testing equipment calibration method as claimed in claim 1, characterized in that: The step S1 is specifically as follows: The upper computer obtains an input calibration instruction that at least carries calibration content, a device serial number, a timestamp, and a hash value, where the hash value is obtained by performing a hash calculation on the calibration content, the device serial number, and the timestamp; The upper computer parses the received calibration instruction to obtain the calibration content, device serial number, timestamp and hash value. After performing integrity check on the calibration content, device serial number and timestamp through the hash value, a timeliness check is performed through the timestamp, and then the legitimacy of the device serial number is checked through a preset device management table.

3. A lithium battery testing equipment calibration method as claimed in claim 1, characterized in that: The step S2 is specifically as follows: The host computer disconnects the output contactor of the lithium battery testing equipment based on the calibration instruction, and determines whether the output contactor is disconnected within 1S. If so, the dummy load contactor is closed; if not, a fault notification of the contactor fault is displayed.

4. A lithium battery testing equipment calibration method as claimed in claim 1, characterized in that: The step S3 is specifically as follows: The host computer starts the AC function of the lithium battery test equipment and determines whether the DC function is allowed to be started within 20 seconds. If so, the preset default calibration factor is written to the lithium battery test equipment; if not, a fault notification of abnormal AC function startup is displayed.

5. A lithium battery testing equipment calibration method as claimed in claim 1, characterized in that: The step S4 is specifically as follows: The host computer starts the DC function of the lithium battery test equipment, outputs a first voltage and current setting value to the lithium battery test equipment based on a preset first calibration point, collects the first voltage and current actual value through the voltage and current meter of the lithium battery test equipment, obtains the first voltage and current output value output by the lithium battery test equipment based on the default calibration factor, verifies the first voltage and current output value through the first voltage and current actual value, and if the verification passes, uses the default calibration factor as the optimized calibration factor; If the verification fails, the second voltage and current setting values ​​are output to the lithium battery testing equipment based on the preset second calibration point, the second voltage and current actual values ​​and the second voltage and current output values ​​are collected, and the default calibration factor is optimized based on the first voltage and current actual values, the first voltage and current output values, the second voltage and current actual values, and the second voltage and current output values ​​to obtain an optimized calibration factor, and the optimized calibration factor is written into the lithium battery testing equipment.

6. A lithium battery testing equipment calibration system, characterized in that: Includes the following modules: The calibration instruction input module is used for the upper computer to obtain the input calibration instruction and verify the calibration instruction; A contactor control module, used for the host computer to disconnect the output contactor of the lithium battery testing equipment and close the dummy load contactor based on the calibration instruction; AC function start module, used for the host computer to start the AC function of the lithium battery test equipment and write the preset default calibration factor to the lithium battery test equipment; A DC function start module, used for the host computer to start the DC function of the lithium battery test device, calibrate the voltage value and current value of the lithium battery test device based on the default calibration factor, optimize the default calibration factor during the calibration process to obtain an optimized calibration factor, and write the optimized calibration factor into the lithium battery test device; A calibration accuracy verification module, used for the upper computer to verify the calibration accuracy of the lithium battery testing equipment based on the optimized calibration factor, and turn off the DC function after the verification is completed; The calibration log management module is used to record the calibration log of the lithium battery testing equipment in real time and generate a calibration report based on the calibration log.

7. A lithium battery testing equipment calibration system as claimed in claim 6, characterized in that: The calibration instruction input module is specifically used for: The upper computer obtains an input calibration instruction that at least carries calibration content, a device serial number, a timestamp, and a hash value, where the hash value is obtained by performing a hash calculation on the calibration content, the device serial number, and the timestamp; The upper computer parses the received calibration instruction to obtain the calibration content, device serial number, timestamp and hash value. After performing integrity check on the calibration content, device serial number and timestamp through the hash value, a timeliness check is performed through the timestamp, and then the legitimacy of the device serial number is checked through a preset device management table.

8. A lithium battery testing equipment calibration system as claimed in claim 6, characterized in that: The contactor control module is specifically used for: The host computer disconnects the output contactor of the lithium battery testing equipment based on the calibration instruction, and determines whether the output contactor is disconnected within 1S. If so, the dummy load contactor is closed; if not, a fault notification of the contactor fault is displayed.

9. A lithium battery testing equipment calibration system as claimed in claim 6, characterized in that: The AC function startup module is specifically used for: The host computer starts the AC function of the lithium battery test equipment and determines whether the DC function is allowed to be started within 20 seconds. If so, the preset default calibration factor is written to the lithium battery test equipment; if not, a fault notification of abnormal AC function startup is displayed.

10. A lithium battery testing equipment calibration system as claimed in claim 6, characterized in that: The DC function startup module is specifically used for: The host computer starts the DC function of the lithium battery test equipment, outputs a first voltage and current setting value to the lithium battery test equipment based on a preset first calibration point, collects the first voltage and current actual value through the voltage and current meter of the lithium battery test equipment, obtains the first voltage and current output value output by the lithium battery test equipment based on the default calibration factor, verifies the first voltage and current output value through the first voltage and current actual value, and if the verification passes, uses the default calibration factor as the optimized calibration factor; If the verification fails, the second voltage and current setting values ​​are output to the lithium battery testing equipment based on the preset second calibration point, the second voltage and current actual values ​​and the second voltage and current output values ​​are collected, and the default calibration factor is optimized based on the first voltage and current actual values, the first voltage and current output values, the second voltage and current actual values, and the second voltage and current output values ​​to obtain an optimized calibration factor, and the optimized calibration factor is written into the lithium battery testing equipment.

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