Calibration method for battery charge and discharge detection device

Abstract

The application provides a calibration method of a battery charging and discharging detection device, which comprises the following steps: opening calibration software, and editing calibration configuration parameters; the calibration software is connected with a plurality of lower computers and displayed on a man-machine interface, a lower computer to be calibrated is selected, and a start button is clicked; the calibration software is connected with an ammeter and a voltmeter according to ammeter configuration parameters and voltmeter configuration parameters; a calibration channel represented by an index is used, the calibration software sends a start calibration instruction to the calibration channel; calibration segment parameters represented by the index are used, a calibration step is executed according to the calibration segment parameters, and calibration data is recorded; after calibration, calibration report information is displayed on the man-machine interface of the calibration software in real time, and the calibration report is sent to a LIMS system; the application can make calibration more convenient, effectively reduce cost, and improve efficiency; periodic calibration of the calibration software can effectively correct deviation, and ensure the accuracy and consistency of channel output values.

Description

Technical Field

[0001] This invention relates to the field of battery testing equipment technology, and more particularly to a calibration method for battery charge and discharge testing equipment. Background Technology

[0002] When calibrating or adjusting channel voltage / current in battery testing equipment, a current source or voltage source is required as both input and output. Traditionally, calibration is performed automatically using calibration fixtures and software. However, some battery testing equipment is high-current and inherently supports acting as a voltage or current source for input / output. Manufacturing high-current calibration fixtures using the traditional method would be prohibitively expensive and hinder promotion and sales. Therefore, enabling automatic calibration using the equipment's own channels as voltage / current sources for input / output, in conjunction with calibration software, is a problem urgently needing to be solved by those in the field.

[0003] Chinese patent CN117590307A discloses a calibration method for a battery charge-discharge testing device, comprising: providing a standard power supply and a control terminal for simulating the load of the battery charge-discharge testing device; the control terminal being communicatively connected to the standard power supply and the testing device via a communication network; the control terminal reading the standard electrical parameters output by the standard power supply and the test electrical parameters output by the testing device, and comparing the standard electrical parameters and the test electrical parameters to obtain a calibration coefficient; transmitting the calibration coefficient to the testing device so that the testing device can perform calibration based on the calibration coefficient, thereby solving the problem of automatic calibration of the charge-discharge testing device, having a standardized operating procedure, high calibration stability and accuracy, avoiding calibration accidents caused by operational and calculation errors that may occur during manual calibration; enabling unattended operation, reducing the calibration cost of the charge-discharge testing device while improving calibration efficiency, making battery testing and final shipment output and expectations controllable, and achieving fast and orderly production while ensuring product quality. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned technical problems by providing a novel calibration method for battery charge and discharge testing equipment, which makes calibration more convenient, effectively reduces costs, and improves efficiency; periodic calibration of the calibration software can effectively correct deviations and ensure the accuracy and consistency of channel output values; and the LIMS system allows for convenient later querying of calibration reports and troubleshooting.

[0005] This invention is achieved through the following technical solution:

[0006] A calibration method for a battery charge / discharge testing device includes the following steps:

[0007] S1: Open the calibration software and edit the calibration configuration parameters, including source channel settings. Each calibration section parameter, multimeter configuration parameter, and ammeter configuration parameter;

[0008] S2: The calibration software connects to several lower-level machines and displays them on the human-machine interface. Select the lower-level machine to be calibrated and click "Start." The calibration software connects to the ammeter and voltmeter respectively according to their configuration parameters. The calibration software retrieves the target lower-level machine from among the several lower-level machines based on the device number of the source lower-level machine; this is the source lower-level machine. The lower-level machines to be calibrated include... Each channel, also referred to as a calibration channel, is used in conjunction with... Indicates, using This indicates the index of the calibration channel. The initial value is 1;

[0009] S3: Judgment Is it greater than If yes, generate a calibration report and proceed to step S8; otherwise, proceed to step S4.

[0010] S4: use Indicates index The calibration channel consists of several channels in the source lower-level machine. The calibration software automatically obtains the source channel from these channels based on the correspondence parameters between the source channel and the calibration channel. The calibration software then performs calibration on the calibration channel. Send start calibration command, calibration channel Enter calibration mode. Each calibration segment parameter is used Indicates, using This indicates the index of the calibration segment parameter. The initial value is 1;

[0011] S5: Judgment Is it greater than If so, the calibration software will calibrate the channel. Send calibration end command, calibration channel Exit calibration mode, for Increment by 1 and proceed to step S3; otherwise, proceed to step S6.

[0012] S6: Use Indicates index The calibration segment parameters are used by the calibration software. Perform calibration steps, which include: A: The calibration software performs calibration based on the calibration segment parameters. The calibration type and value type are used to calculate the low-point setting value, which is then used... Indicates; B: The calibration software is based on the calibration section parameters. The calibration type and source channel settings parameters are used to send charge / discharge commands to the source channel; C: The calibration software sends charge / discharge commands to the source channel based on the calibration segment parameters. Calibration type and For calibration channel Send charge / discharge commands; D: The calibration software adjusts the calibration parameters accordingly. Calibration type for calibration channel Send the corresponding sampling command to obtain the low-point sample value and use it. E indicates that the calibration software uses calibration segment parameters. The calibration type sends a sampling command to the multimeter or ammeter, obtains the low-point sampled value of the standard, and uses it for calibration. Indicates; F: The calibration software is based on the calibration section parameters. The calibration type and value type are used to calculate the high-point setting value, which is then used... Indicates; H: The calibration software is based on the calibration section parameters. Calibration type and For calibration channel Send charge / discharge commands; I: The calibration software adjusts the calibration parameters accordingly. Calibration type for calibration channel Send the corresponding sampling command to obtain the high-point sampled values ​​and use them. J indicates that the calibration software uses calibration section parameters. The calibration type sends a sampling command to the multimeter or ammeter, obtains the high-point sampled value of the standard, and uses it for calibration. Indicates; calculate calibration channel The K value of D / A is calculated using the following formula: ,in Indicates the K value of D / A; calculates the calibration channel. The B value of D / A is calculated using the following formula: ,in Indicates the B value of D / A; calculates the calibration channel. The K value of A / D is calculated using the following formula: ,in Indicates the K value of the A / D converter; calculates the calibration channel. The B value of A / D is calculated using the following formula: ,in B value represents the A / D converter; L: calibration channel for the calibration software. Send a command to set calibration parameters for a specified range. This command includes calibration segment parameters. Calibration type, calibration segment parameters Range index, K value of D / A, B value of D / A, K value of A / D, B value of A / D;

[0013] S7: Record calibration data, for Add 1 and proceed to step S5;

[0014] S8: Calibration is complete. The calibration software's human-machine interface displays the calibration report information in real time and sends the calibration report to the LIMS system.

[0015] As a further step, the calibration software is based on the calibration segment parameters. The calibration type and value type are used to calculate the low-point setting value, which is then used... Instructions: ① When the value type is percentage, first obtain the target range value according to the calibration type, then multiply by... The percentage of the lowest value is the final result. If the calibration type is charging voltage, the target range value is equal to the calibration channel value. The range index for several charging voltage ranges is: The range index specifies the charging voltage range; if the calibration type is discharge voltage, the target range value is equal to the calibration channel. The range index is among the several discharge voltage ranges. The range index specifies the discharge voltage range; if the calibration type is charging current, the target range value is equal to the calibration channel. The range index for several charging voltage ranges is: The range index specifies the charging current range; if the calibration type is discharge current, the target range value is equal to the calibration channel. The range index is among the several discharge current ranges. ① The discharge current range index; ② When the value type is set to numerical value. Equal to calibration segment parameters The low end value.

[0016] As a further step, the calibration software is based on the calibration segment parameters. The calibration type and source channel setting parameters are used to send charge / discharge commands to the source channel: ① If the calibration type is charging voltage, first find the source channel output parameter with the output mode of discharge current from several source channel output parameters, which is the target source channel output parameter; then obtain the source channel setting value and use it... This indicates that when the output value type of the target source channel output parameter is percentage, It equals the maximum discharge current range of the source channel multiplied by the output ratio of the target source channel output parameter. This applies when the output value type of the target source channel output parameter is numerical. The output value is equal to the target source channel output parameter; finally, the calibration software sends the source channel current as follows: ① The discharge current command; ② If the calibration type is discharge voltage, first find the source channel output parameter with the output mode of charging current from several source channel output parameters, which is the target source channel output parameter; then obtain the source channel setting value and use it. This indicates that when the output value type of the target source channel output parameter is percentage, This equals the maximum charging current range of the source channel multiplied by the output ratio of the target source channel output parameter. This applies when the output value type of the target source channel output parameter is numerical. The output value is equal to the target source channel output parameter; finally, the calibration software sends the source channel current as follows: ③ If the calibration type is charging current, first find the source channel output parameter with the output mode of discharge voltage from several source channel output parameters, which is the target source channel output parameter; then obtain the source channel setting value and use it. This indicates that when the output value type of the target source channel output parameter is percentage, This equals the maximum discharge voltage range of the source channel multiplied by the output ratio of the target source channel output parameter. This applies when the target source channel output parameter's output value type is numerical. The output value is equal to the target source channel output parameter; finally, the calibration software sends the source channel current as follows: The discharge voltage command; ④ If the calibration type is discharge current, first find the source channel output parameter with the output mode of charging voltage from several source channel output parameters, which is the target source channel output parameter; then obtain the source channel setting value and use it. This indicates that when the output value type of the target source channel output parameter is percentage, This equals the maximum charging voltage range of the source channel multiplied by the output ratio of the target source channel output parameter. This applies when the target source channel output parameter's output value type is numerical. The output value is equal to the target source channel output parameter; finally, the calibration software sends the source channel current as follows: The charging voltage command.

[0017] As a further step, the calibration software is based on the calibration segment parameters. Calibration type and For calibration channel Send charge / discharge commands: ① If the calibration type is charging voltage, the calibration software will send a calibration channel. Transmit voltage is ① Charging voltage command; ② If the calibration type is discharge voltage, the calibration software will adjust the calibration channel. Transmit voltage is The discharge voltage command; ③ If the calibration type is charging current, the calibration software will adjust the calibration channel. The transmitted current is ④ If the calibration type is discharge current, the calibration software will adjust the calibration channel accordingly. The transmitted current is The discharge current command; the calibration software based on the calibration segment parameters. Calibration type for calibration channel Send the corresponding sampling command to obtain the low-point sample value and use it. Indicates: ① If the calibration type is charging voltage or discharging voltage, the calibration software will adjust the calibration channel. Send voltage sampling command, Equal to the voltage sample value; ② If the calibration type is charging current or discharging current, the calibration software will adjust the calibration channel. Send current sampling command, Equal to the current sampling value; the calibration software is based on the calibration segment parameters. The calibration type sends a sampling command to the multimeter or ammeter, obtains the low-point sampled value of the standard, and uses it for calibration. Indicates: ① If the calibration type is charging voltage or discharging voltage, send a sampling command to the multimeter. ① The voltage sample value is equal to that of the multimeter; ② If the calibration type is charging current or discharging current, a sampling command is sent to the ammeter. It equals the current sample value of the ammeter.

[0018] As a further step, the calibration software is based on the calibration segment parameters. The calibration type and value type are used to calculate the high-point setting value, which is then used... Instructions: ① When the value type is percentage, first obtain the target range value according to the calibration type, then multiply by... The percentage of high-end values, the final result is If the calibration type is charging voltage, the target range value is equal to the calibration channel value. The range index for several charging voltage ranges is: The range index specifies the charging voltage range; if the calibration type is discharge voltage, the target range value is equal to the calibration channel. The range index is among the several discharge voltage ranges. The range index specifies the discharge voltage range; if the calibration type is charging current, the target range value is equal to the calibration channel. The range index for several charging voltage ranges is: The range index specifies the charging current range; if the calibration type is discharge current, the target range value is equal to the calibration channel. The range index is among the several discharge current ranges. ① The discharge current range index; ② When the value type is set to numerical value. Equal to calibration segment parameters High-end value.

[0019] As a further step, the calibration software is based on the calibration segment parameters. Calibration type and For calibration channel Send charge / discharge commands: ① If the calibration type is charging voltage, the calibration software will send a calibration channel. Transmit voltage is ① Charging voltage command; ② If the calibration type is discharge voltage, the calibration software will adjust the calibration channel. Transmit voltage is The discharge voltage command; ③ If the calibration type is charging current, the calibration software will adjust the calibration channel. The transmitted current is ④ If the calibration type is discharge current, the calibration software will adjust the calibration channel accordingly. The transmitted current is The discharge current command; the calibration software based on the calibration segment parameters. Calibration type for calibration channel Send the corresponding sampling command to obtain the high-point sampled values ​​and use them. Indicates: ① If the calibration type is charging voltage or discharging voltage, the calibration software will adjust the calibration channel. Send voltage sampling command, Equal to the voltage sample value; ② If the calibration type is charging current or discharging current, the calibration software will adjust the calibration channel. Send current sampling command, Equal to the current sampling value; the calibration software is based on the calibration segment parameters. The calibration type sends a sampling command to the multimeter or ammeter, obtains the high-point sampled value of the standard, and uses it for calibration. Indicates: ① If the calibration type is charging voltage or discharging voltage, send a sampling command to the multimeter. ① The voltage sample value is equal to that of the multimeter; ② If the calibration type is charging current or discharging current, a sampling command is sent to the ammeter. It equals the current sample value of the ammeter.

[0020] As a further step, the calibration report includes equipment information and several calibration data points; the calibration data includes calibration channel, calibration type, range index, low point setting value, high point setting value, low point sampling value, high point sampling value, standard low point sampling value, standard high point sampling value, D / A K value, D / A B value, A / D K value, A / D B value, calibration start time, and calibration end time.

[0021] Furthermore, the source channel setting parameters include the device number of the source slave device, several source channel output parameters, and the correspondence parameters between the source channel and the calibration channel. The source channel output parameters include output mode, output value type, output value, and output ratio. The output mode includes charging voltage, discharging voltage, charging current, and discharging current. The output value type includes proportional and numerical values. The calibration segment parameters include calibration type, segment number, range index, value type, low-end value percentage, high-end value percentage, low-end value, and high-end value. The calibration type includes charging voltage, discharging voltage, charging current, and discharging current. The value type includes proportional and numerical values. The multimeter configuration parameters include network communication parameters, and the ammeter configuration parameters include communication method, network communication parameters, and serial communication parameters. The network communication parameters of the multimeter configuration parameters and the network communication parameters of the current configuration parameters have the same data structure, both including IP address and port number. The communication method includes network communication and serial communication. The serial communication parameters include serial port number and baud rate.

[0022] Furthermore, the correspondence parameters between the source channel and the calibration channel include odd-even correspondence or custom correspondence. Odd-even correspondence means that when the channel number of the calibration channel is odd, the source channel is the channel with channel number 2 in the source slave device, and when the channel number of the calibration channel is even, the source channel is the channel with channel number 1 in the source slave device. Custom correspondence means that the channel number of the calibration channel and the channel number of the source channel are set customly. When obtaining the source channel, the target channel number of the source channel is first obtained according to the channel number of the calibration channel, and then the channel with the target channel number is obtained from the source slave device, which is the source channel.

[0023] As a further step, the device information includes the product code of the multimeter and the product code of the ammeter.

[0024] The advantages of this invention are: it makes calibration more convenient, effectively reduces costs, and improves efficiency; regular calibration of the calibration software can effectively correct deviations and ensure the accuracy and consistency of channel output values; and the LIMS system facilitates the later querying of calibration reports and troubleshooting. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the calibration method for the battery charge / discharge testing equipment of the present invention. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] For reference Figure 1 As shown, a calibration method for a battery charge / discharge testing device includes the following steps:

[0030] S1: Open the calibration software and edit the calibration configuration parameters, including source channel settings. Each calibration section parameter, multimeter configuration parameter, and ammeter configuration parameter;

[0031] S2: The calibration software connects to several lower-level machines and displays them on the human-machine interface. Select the lower-level machine to be calibrated and click "Start." The calibration software connects to the ammeter and voltmeter respectively according to their configuration parameters. The calibration software retrieves the target lower-level machine from among the several lower-level machines based on the device number of the source lower-level machine; this is the source lower-level machine. The lower-level machines to be calibrated include... Each channel, also referred to as a calibration channel, is used in conjunction with... Indicates, using This indicates the index of the calibration channel. The initial value is 1;

[0032] S3: Judgment Is it greater than If yes, generate a calibration report and proceed to step S8; otherwise, proceed to step S4.

[0033] S4: use Indicates index The calibration channel consists of several channels in the source lower-level machine. The calibration software automatically obtains the source channel from these channels based on the correspondence parameters between the source channel and the calibration channel. The calibration software then performs calibration on the calibration channel. Send start calibration command, calibration channel Enter calibration mode. Each calibration segment parameter is used Indicates, using This indicates the index of the calibration segment parameter. The initial value is 1;

[0034] S5: Judgment Is it greater than If so, the calibration software will calibrate the channel. Send calibration end command, calibration channel Exit calibration mode, for Increment by 1 and proceed to step S3; otherwise, proceed to step S6.

[0035] S6: Use Indicates index The calibration segment parameters are used by the calibration software. Perform the calibration steps, which include: A: The calibration software performs the calibration based on the calibration segment parameters. The calibration type and value type are used to calculate the low-point setting value, which is then used... Indicates; B: The calibration software is based on the calibration section parameters. The calibration type and source channel settings parameters are used to send charge / discharge commands to the source channel; C: The calibration software sends charge / discharge commands to the source channel based on the calibration segment parameters. Calibration type and For calibration channel Send charge / discharge commands; D: The calibration software adjusts the calibration parameters accordingly. Calibration type for calibration channel Send the corresponding sampling command to obtain the low-point sample value and use it. E indicates that the calibration software uses calibration segment parameters. The calibration type sends a sampling command to the multimeter or ammeter, obtains the low-point sampled value of the standard, and uses it for calibration. Indicates; F: The calibration software is based on the calibration section parameters. The calibration type and value type are used to calculate the high-point setting value, which is then used... Indicates; H: The calibration software is based on the calibration section parameters. Calibration type and For calibration channel Send charge / discharge commands; I: The calibration software adjusts the calibration parameters accordingly. Calibration type for calibration channel Send the corresponding sampling command to obtain the high-point sampled values ​​and use them. J indicates that the calibration software uses calibration section parameters. The calibration type sends a sampling command to the multimeter or ammeter, obtains the high-point sampled value of the standard, and uses it for calibration. Indicates; calculate calibration channel The K value of D / A is calculated using the following formula: ,in Indicates the K value of D / A; calculates the calibration channel. The B value of D / A is calculated using the following formula: ,in Indicates the B value of D / A; calculates the calibration channel. The K value of A / D is calculated using the following formula: ,in Indicates the K value of the A / D converter; calculates the calibration channel. The B value of A / D is calculated using the following formula: ,in B value represents the A / D converter; L: calibration channel for the calibration software. Send a command to set calibration parameters for a specified range. This command includes calibration segment parameters. Calibration type, calibration segment parameters Range index, K value of D / A, B value of D / A, K value of A / D, B value of A / D;

[0036] S7: Record calibration data, for Add 1 and proceed to step S5;

[0037] S8: Calibration is complete. The calibration software's human-machine interface displays the calibration report information in real time and sends the calibration report to the LIMS system.

[0038] Preferably, the calibration software is based on calibration segment parameters. The calibration type and value type are used to calculate the low-point setting value, which is then used... Instructions: ① When the value type is percentage, first obtain the target range value according to the calibration type, then multiply by... The percentage of the lowest value is the final result. If the calibration type is charging voltage, the target range value is equal to the calibration channel value. The range index for several charging voltage ranges is: The range index specifies the charging voltage range; if the calibration type is discharge voltage, the target range value is equal to the calibration channel. The range index is among the several discharge voltage ranges. The range index specifies the discharge voltage range; if the calibration type is charging current, the target range value is equal to the calibration channel. The range index for several charging voltage ranges is: The range index specifies the charging current range; if the calibration type is discharge current, the target range value is equal to the calibration channel. The range index is among the several discharge current ranges. ① The discharge current range index; ② When the value type is set to numerical value. Equal to calibration segment parameters The low end value.

[0039] Preferably, the calibration software is based on calibration segment parameters. The calibration type and source channel setting parameters are used to send charge / discharge commands to the source channel: ① If the calibration type is charging voltage, first find the source channel output parameter with the output mode of discharge current from several source channel output parameters, which is the target source channel output parameter; then obtain the source channel setting value and use it... This indicates that when the output value type of the target source channel output parameter is percentage, It equals the maximum discharge current range of the source channel multiplied by the output ratio of the target source channel output parameter. This applies when the output value type of the target source channel output parameter is numerical. The output value is equal to the target source channel output parameter; finally, the calibration software sends the source channel current as follows: ① The discharge current command; ② If the calibration type is discharge voltage, first find the source channel output parameter with the output mode of charging current from several source channel output parameters, which is the target source channel output parameter; then obtain the source channel setting value and use it. This indicates that when the output value type of the target source channel output parameter is percentage, This equals the maximum charging current range of the source channel multiplied by the output ratio of the target source channel output parameter. This applies when the output value type of the target source channel output parameter is numerical. The output value is equal to the target source channel output parameter; finally, the calibration software sends the source channel current as follows: ③ If the calibration type is charging current, first find the source channel output parameter with the output mode of discharge voltage from several source channel output parameters, which is the target source channel output parameter; then obtain the source channel setting value and use it. This indicates that when the output value type of the target source channel output parameter is percentage, This equals the maximum discharge voltage range of the source channel multiplied by the output ratio of the target source channel output parameter. This applies when the target source channel output parameter's output value type is numerical. The output value is equal to the target source channel output parameter; finally, the calibration software sends the source channel current as follows: The discharge voltage command; ④ If the calibration type is discharge current, first find the source channel output parameter with the output mode of charging voltage from several source channel output parameters, which is the target source channel output parameter; then obtain the source channel setting value and use it. This indicates that when the output value type of the target source channel output parameter is percentage, This equals the maximum charging voltage range of the source channel multiplied by the output ratio of the target source channel output parameter. This applies when the target source channel output parameter's output value type is numerical. The output value is equal to the target source channel output parameter; finally, the calibration software sends the source channel current as follows: The charging voltage command.

[0040] Preferably, the calibration software is based on calibration segment parameters. Calibration type and For calibration channel Send charge / discharge commands: ① If the calibration type is charging voltage, the calibration software will send a calibration channel. Transmit voltage is ① Charging voltage command; ② If the calibration type is discharge voltage, the calibration software will adjust the calibration channel. Transmit voltage is The discharge voltage command; ③ If the calibration type is charging current, the calibration software will adjust the calibration channel. The transmitted current is ④ If the calibration type is discharge current, the calibration software will adjust the calibration channel accordingly. The transmitted current is The discharge current command; the calibration software based on the calibration segment parameters. Calibration type for calibration channel Send the corresponding sampling command to obtain the low-point sample value and use it. Indicates: ① If the calibration type is charging voltage or discharging voltage, the calibration software will adjust the calibration channel. Send voltage sampling command, Equal to the voltage sample value; ② If the calibration type is charging current or discharging current, the calibration software will adjust the calibration channel. Send current sampling command, Equal to the current sampling value; the calibration software is based on the calibration segment parameters. The calibration type sends a sampling command to the multimeter or ammeter, obtains the low-point sampled value of the standard, and uses it for calibration. Indicates: ① If the calibration type is charging voltage or discharging voltage, send a sampling command to the multimeter. ① The voltage sample value is equal to that of the multimeter; ② If the calibration type is charging current or discharging current, a sampling command is sent to the ammeter. It equals the current sample value of the ammeter.

[0041] Preferably, the calibration software is based on calibration segment parameters. The calibration type and value type are used to calculate the high-point setting value, which is then used... Instructions: ① When the value type is percentage, first obtain the target range value according to the calibration type, then multiply by... The percentage of high-end values, the final result is If the calibration type is charging voltage, the target range value is equal to the calibration channel value. The range index for several charging voltage ranges is: The range index specifies the charging voltage range; if the calibration type is discharge voltage, the target range value is equal to the calibration channel. The range index is among the several discharge voltage ranges. The range index specifies the discharge voltage range; if the calibration type is charging current, the target range value is equal to the calibration channel. The range index for several charging voltage ranges is: The range index specifies the charging current range; if the calibration type is discharge current, the target range value is equal to the calibration channel. The range index is among the several discharge current ranges. ① The discharge current range index; ② When the value type is set to numerical value. Equal to calibration segment parameters High-end value.

[0042] Preferably, the calibration software is based on calibration segment parameters. Calibration type and For calibration channel Send charge / discharge commands: ① If the calibration type is charging voltage, the calibration software will send a calibration channel. Transmit voltage is ① Charging voltage command; ② If the calibration type is discharge voltage, the calibration software will adjust the calibration channel. Transmit voltage is The discharge voltage command; ③ If the calibration type is charging current, the calibration software will adjust the calibration channel. The transmitted current is ④ If the calibration type is discharge current, the calibration software will adjust the calibration channel accordingly. The transmitted current is The discharge current command; the calibration software based on the calibration segment parameters. Calibration type for calibration channel Send the corresponding sampling command to obtain the high-point sampled values ​​and use them. Indicates: ① If the calibration type is charging voltage or discharging voltage, the calibration software will adjust the calibration channel. Send voltage sampling command, Equal to the voltage sample value; ② If the calibration type is charging current or discharging current, the calibration software will adjust the calibration channel. Send current sampling command, Equal to the current sampling value; the calibration software is based on the calibration segment parameters. The calibration type sends a sampling command to the multimeter or ammeter, obtains the high-point sampled value of the standard, and uses it for calibration. Indicates: ① If the calibration type is charging voltage or discharging voltage, send a sampling command to the multimeter. ① The voltage sample value is equal to that of the multimeter; ② If the calibration type is charging current or discharging current, a sampling command is sent to the ammeter. It equals the current sample value of the ammeter.

[0043] Preferably, the calibration report includes equipment information and several calibration data points; the calibration data includes calibration channel, calibration type, range index, low point setting value, high point setting value, low point sampling value, high point sampling value, standard low point sampling value, standard high point sampling value, D / A K value, D / A B value, A / D K value, A / D B value, calibration start time, and calibration end time.

[0044] Preferably, the source channel setting parameters include the device number of the source slave device, several source channel output parameters, and the correspondence parameters between the source channel and the calibration channel. The source channel output parameters include output mode, output value type, output value, and output ratio. The output mode includes charging voltage, discharging voltage, charging current, and discharging current. The output value type includes proportional and numerical values. The calibration segment parameters include calibration type, segment number, range index, value type, low-end value percentage, high-end value percentage, low-end value, and high-end value. The calibration type includes charging voltage, discharging voltage, charging current, and discharging current. The value type includes proportional and numerical values. The multimeter configuration parameters include network communication parameters, and the ammeter configuration parameters include communication method, network communication parameters, and serial communication parameters. The network communication parameters of the multimeter configuration parameters and the network communication parameters of the current configuration parameters have the same data structure, both including IP address and port number. The communication method includes network communication and serial communication. The serial communication parameters include serial port number and baud rate.

[0045] Preferably, the correspondence parameter between the source channel and the calibration channel includes odd-even correspondence or custom correspondence. Odd-even correspondence means that when the channel number of the calibration channel is odd, the source channel is the channel with channel number 2 in the source slave device, and when the channel number of the calibration channel is even, the source channel is the channel with channel number 1 in the source slave device. Custom correspondence means that the channel number of the calibration channel and the channel number of the source channel are set customly. When obtaining the source channel, the target channel number of the source channel is first obtained according to the channel number of the calibration channel, and then the channel with the target channel number is obtained from the source slave device, which is the source channel.

[0046] Preferably, the device information includes the product code of the multimeter and the product code of the ammeter.

[0047] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A calibration method for a battery charge / discharge testing device, characterized in that, Includes the following steps: S1: Open the calibration software and edit the calibration configuration parameters, including source channel settings. Each calibration section parameter, multimeter configuration parameter, and ammeter configuration parameter; S2: The calibration software connects to several lower-level machines and displays them on the human-machine interface. Select the lower-level machine to be calibrated and click "Start." The calibration software connects to the ammeter and voltmeter respectively according to their configuration parameters. The calibration software retrieves the target lower-level machine from among the several lower-level machines based on the device number of the source lower-level machine; this is the source lower-level machine. The lower-level machines to be calibrated include... Each channel, also referred to as a calibration channel, is used in conjunction with... Indicates, using This indicates the index of the calibration channel. The initial value is 1; S3: Judgment Is it greater than If yes, generate a calibration report and proceed to step S8; otherwise, proceed to step S4. S4: use Indicates index The calibration channel consists of several channels in the source lower-level machine. The calibration software automatically obtains the source channel from these channels based on the correspondence parameters between the source channel and the calibration channel. The calibration software then performs calibration on the calibration channel. Send start calibration command, calibration channel Enter calibration mode. Each calibration segment parameter is used Indicates, using This indicates the index of the calibration segment parameter. The initial value is 1; S5: Judgment Is it greater than If so, the calibration software will calibrate the channel. Send calibration end command, calibration channel Exit calibration mode, for Increment by 1 and proceed to step S3; otherwise, proceed to step S6. S6: Use Indicates index The calibration segment parameters are used by the calibration software. Perform the calibration steps, which include: A: The calibration software performs the calibration based on the calibration segment parameters. The calibration type and value type are used to calculate the low-point setting value, which is then used... Indicates; B: The calibration software is based on the calibration section parameters. The calibration type and source channel settings parameters are used to send charge / discharge commands to the source channel; C: The calibration software sends charge / discharge commands to the source channel based on the calibration segment parameters. Calibration type and For calibration channel Send charge / discharge commands; D: The calibration software adjusts the calibration parameters accordingly. Calibration type for calibration channel Send the corresponding sampling command to obtain the low-point sample value and use it. E indicates that the calibration software uses calibration segment parameters. The calibration type sends a sampling command to the multimeter or ammeter, obtains the low-point sampled value of the standard, and uses it for calibration. Indicates; F: The calibration software is based on the calibration section parameters. The calibration type and value type are used to calculate the high-point setting value, which is then used... Indicates; H: The calibration software is based on the calibration section parameters. Calibration type and For calibration channel Send charge / discharge commands; I: The calibration software adjusts the calibration parameters accordingly. Calibration type for calibration channel Send the corresponding sampling command to obtain the high-point sampled values ​​and use them. J indicates that the calibration software uses calibration section parameters. The calibration type sends a sampling command to the multimeter or ammeter, obtains the high-point sampled value of the standard, and uses it for calibration. Indicates; calculate calibration channel The K value of D / A is calculated using the following formula: ,in Indicates the K value of D / A; calculates the calibration channel. The B value of D / A is calculated using the following formula: ,in Indicates the B value of D / A; calculates the calibration channel. The K value of A / D is calculated using the following formula: ,in Indicates the K value of the A / D converter; calculates the calibration channel. The B value of A / D is calculated using the following formula: ,in B value represents the A / D converter; L: calibration channel for the calibration software. Send a command to set calibration parameters for a specified range. This command includes calibration segment parameters. Calibration type, calibration segment parameters Range index, K value of D / A, B value of D / A, K value of A / D, B value of A / D; S7: Record calibration data, for Add 1 and proceed to step S5; S8: Calibration is complete. The calibration software's human-machine interface displays the calibration report information in real time and sends the calibration report to the LIMS system.

2. The calibration method for the battery charge / discharge testing equipment according to claim 1, characterized in that: The calibration software is based on calibration segment parameters. The calibration type and value type are used to calculate the low-point setting value, which is then used... Instructions: ① When the value type is percentage, first obtain the target range value according to the calibration type, then multiply by... The percentage of the lowest value is the final result. If the calibration type is charging voltage, the target range value is equal to the calibration channel value. The range index for several charging voltage ranges is: The range index specifies the charging voltage range; if the calibration type is discharge voltage, the target range value is equal to the calibration channel. The range index is among the several discharge voltage ranges. The range index specifies the discharge voltage range; if the calibration type is charging current, the target range value is equal to the calibration channel. The range index for several charging voltage ranges is: The range index indicates the charging current range. If the calibration type is discharge current, the target range value is equal to the calibration channel. The range index is one of the several discharge current ranges. ① The discharge current range index; ② When the value type is set to numerical value. Equal to calibration segment parameters The low end value.

3. The calibration method for the battery charge / discharge testing equipment according to claim 1, characterized in that: The calibration software is based on calibration segment parameters. The calibration type and source channel setting parameters are used to send charge / discharge commands to the source channel: ① If the calibration type is charging voltage, first find the source channel output parameter with the output mode of discharge current from several source channel output parameters, which is the target source channel output parameter; then obtain the source channel setting value and use it... This indicates that when the output value type of the target source channel output parameter is percentage, It equals the maximum discharge current range of the source channel multiplied by the output ratio of the target source channel output parameter. This applies when the output value type of the target source channel output parameter is numerical. The output value equals the output parameter of the target source channel. Finally, the calibration software sends a current to the source channel. ① The discharge current command; ② If the calibration type is discharge voltage, first find the source channel output parameter with the output mode of charging current from several source channel output parameters, which is the target source channel output parameter; then obtain the source channel setting value and use it. This indicates that when the output value type of the target source channel output parameter is percentage, This equals the maximum charging current range of the source channel multiplied by the output ratio of the target source channel output parameter. This applies when the output value type of the target source channel output parameter is numerical. The output value equals the output parameter of the target source channel. Finally, the calibration software sends a current to the source channel. ③ If the calibration type is charging current, first find the source channel output parameter with the output mode of discharge voltage from several source channel output parameters, which is the target source channel output parameter; then obtain the source channel setting value and use it. This indicates that when the output value type of the target source channel output parameter is percentage, This equals the maximum discharge voltage range of the source channel multiplied by the output ratio of the target source channel output parameter. This applies when the target source channel output parameter's output value type is numerical. The output value equals the output parameter of the target source channel. Finally, the calibration software sends a current to the source channel. The discharge voltage command; ④ If the calibration type is discharge current, first find the source channel output parameter with the output mode of charging voltage from several source channel output parameters, which is the target source channel output parameter; then obtain the source channel setting value and use it. This indicates that when the output value type of the target source channel output parameter is percentage, This equals the maximum charging voltage range of the source channel multiplied by the output ratio of the target source channel output parameter. This applies when the target source channel output parameter's output value type is numerical. The output value equals the output parameter of the target source channel. Finally, the calibration software sends a current to the source channel. The charging voltage command.

4. The calibration method for the battery charge / discharge testing equipment according to claim 1, characterized in that: The calibration software is based on calibration segment parameters. Calibration type and For calibration channel Send charge / discharge commands: ① If the calibration type is charging voltage, the calibration software will send a calibration channel. Transmit voltage is ① Charging voltage command; ② If the calibration type is discharge voltage, the calibration software will adjust the calibration channel. Transmit voltage is The discharge voltage command; ③ If the calibration type is charging current, the calibration software will adjust the calibration channel. The transmitted current is ④ If the calibration type is discharge current, the calibration software will adjust the calibration channel accordingly. The transmitted current is The discharge current command; the calibration software based on the calibration segment parameters. Calibration type for calibration channel Send the corresponding sampling command to obtain the low-point sample value and use it. Indicates: ① If the calibration type is charging voltage or discharging voltage, the calibration software will adjust the calibration channel. Send voltage sampling command, Equal to the voltage sample value; ② If the calibration type is charging current or discharging current, the calibration software will adjust the calibration channel. Send current sampling command, Equal to the current sampling value; the calibration software is based on the calibration segment parameters. The calibration type sends a sampling command to the multimeter or ammeter, obtains the low-point sampled value of the standard, and uses it for calibration. Indicates: ① If the calibration type is charging voltage or discharging voltage, send a sampling command to the multimeter. ① The voltage sample value is equal to that of the multimeter; ② If the calibration type is charging current or discharging current, a sampling command is sent to the ammeter. It equals the current sample value of the ammeter.

5. The calibration method for the battery charge / discharge testing equipment according to claim 1, characterized in that: The calibration software is based on calibration segment parameters. The calibration type and value type are used to calculate the high-point setting value, which is then used... Instructions: ① When the value type is percentage, first obtain the target range value according to the calibration type, then multiply by... The percentage of high-end values, the final result is If the calibration type is charging voltage, the target range value is equal to the calibration channel value. The range index for several charging voltage ranges is: The range index specifies the charging voltage range; if the calibration type is discharge voltage, the target range value is equal to the calibration channel. The range index is among the several discharge voltage ranges. The range index specifies the discharge voltage range; if the calibration type is charging current, the target range value is equal to the calibration channel. The range index for several charging voltage ranges is: The range index indicates the charging current range. If the calibration type is discharge current, the target range value is equal to the calibration channel. The range index is one of the several discharge current ranges. ① The discharge current range index; ② When the value type is set to numerical value. Equal to calibration segment parameters High-end value.

6. The calibration method for the battery charge / discharge testing equipment according to claim 1, characterized in that: The calibration software is based on calibration segment parameters. Calibration type and For calibration channel Send charge / discharge commands: ① If the calibration type is charging voltage, the calibration software will send a calibration channel. Transmit voltage is ① Charging voltage command; ② If the calibration type is discharge voltage, the calibration software will adjust the calibration channel. Transmit voltage is The discharge voltage command; ③ If the calibration type is charging current, the calibration software will adjust the calibration channel. The transmitted current is ④ If the calibration type is discharge current, the calibration software will adjust the calibration channel accordingly. The transmitted current is The discharge current command; the calibration software based on the calibration segment parameters. Calibration type for calibration channel Send the corresponding sampling command to obtain the high-point sampled values ​​and use them. Indicates: ① If the calibration type is charging voltage or discharging voltage, the calibration software will adjust the calibration channel. Send voltage sampling command, Equal to the voltage sample value; ② If the calibration type is charging current or discharging current, the calibration software will adjust the calibration channel. Send current sampling command, Equal to the current sampling value; the calibration software is based on the calibration segment parameters. The calibration type sends a sampling command to the multimeter or ammeter, obtains the high-point sampled value of the standard, and uses it for calibration. Indicates: ① If the calibration type is charging voltage or discharging voltage, send a sampling command to the multimeter. ① The voltage sample value is equal to that of the multimeter; ② If the calibration type is charging current or discharging current, a sampling command is sent to the ammeter. It equals the current sample value of the ammeter.

7. The calibration method for the battery charge / discharge testing equipment according to claim 1, characterized in that: The calibration report includes equipment information and several calibration data points; the calibration data includes calibration channel, calibration type, range index, low point setting value, high point setting value, low point sampling value, high point sampling value, standard low point sampling value, standard high point sampling value, D / A K value, D / A B value, A / D K value, A / D B value, calibration start time, and calibration end time.

8. The calibration method for the battery charge / discharge testing equipment according to claim 1, characterized in that: The source channel setting parameters include the device number of the source slave device, several source channel output parameters, and the correspondence parameters between the source channel and the calibration channel. The source channel output parameters include output mode, output value type, output value, and output ratio. The output mode includes charging voltage, discharging voltage, charging current, and discharging current. The output value type includes proportional and numerical values. The calibration segment parameters include calibration type, segment number, range index, value type, low-end value percentage, high-end value percentage, low-end value, and high-end value. The calibration type includes charging voltage, discharging voltage, charging current, and discharging current. The value type includes proportional and numerical values. The multimeter configuration parameters include network communication parameters. The ammeter configuration parameters include communication method, network communication parameters, and serial communication parameters. The network communication parameters of the multimeter configuration parameters and the network communication parameters of the current configuration parameters have the same data structure, both including IP address and port number. The communication method includes network communication and serial communication. The serial communication parameters include serial port number and baud rate.

9. The calibration method for the battery charge / discharge testing equipment according to claim 1, characterized in that: The correspondence parameters between the source channel and the calibration channel include odd-even correspondence or custom correspondence. Odd-even correspondence means that when the calibration channel number is odd, the source channel is the channel with channel number 2 in the source slave device, and when the calibration channel number is even, the source channel is the channel with channel number 1 in the source slave device. Custom correspondence means that the calibration channel number and the source channel number are set customly. When obtaining the source channel, the target channel number of the source channel is first obtained according to the calibration channel number, and then the channel with the target channel number is obtained from the source slave device.

10. The calibration method for the battery charge / discharge testing equipment according to claim 7, characterized in that: The device information includes the product code of the multimeter and the product code of the ammeter.

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