CN114778976A - Battery charging and discharging equipment precision and line sequence calibration tool system - Google Patents
Battery charging and discharging equipment precision and line sequence calibration tool system Download PDFInfo
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- CN114778976A CN114778976A CN202210395566.3A CN202210395566A CN114778976A CN 114778976 A CN114778976 A CN 114778976A CN 202210395566 A CN202210395566 A CN 202210395566A CN 114778976 A CN114778976 A CN 114778976A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
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Abstract
The invention discloses a battery charging and discharging equipment precision and line sequence calibration tool system which comprises a structure main body, wherein the structure main body comprises a needle bed and a tool, the structure main body further comprises a battery charging and discharging calibration tool system, the battery charging and discharging calibration tool system comprises an upper computer PC, a switch, a middle computer, a power cabinet, a calibration tool, a universal meter, a power cabinet and a needle bed, and the battery charging and discharging calibration tool system further comprises a tool main control board, tool switching and trimming logic, a current crimping probe, a tool crimping copper platform, a voltage transfer board, needle bed control, a current line switching row, a current line, sampling switching and trimming logic and channel control logic.
Description
Technical Field
The invention relates to the field of battery charging and discharging, in particular to a tool system for calibrating the precision and the line sequence of battery charging and discharging equipment.
Background
With the rapid development of electric vehicles, more and more vehicle enterprises are added to the new energy vehicle market, and meanwhile, under the support of policies, new energy vehicles are greatly increased, so that the lithium ion power battery is promoted to enter a rapid development period. In the production process of the battery, the battery needs to be charged and discharged by adopting battery charging and discharging equipment, so that the battery is activated by realizing the capacity of the components of the battery. At present, in order to ensure that the precision of the voltage and the current of battery charging and discharging equipment meets the requirements, the battery charging and discharging equipment needs to be calibrated regularly;
the existing calibration for battery charging and discharging generally accesses a channel on battery charging and discharging equipment needing to be calibrated, namely the channel on the battery charging and discharging equipment for connecting a battery with a calibration tool, consumes electric energy on the calibration channel as a load through an external resistance box so as to obtain current and voltage of the calibration channel, and adjusts output voltage through the battery charging and discharging equipment to realize calibration on the voltage and the current on the calibration channel when the current and the voltage on the calibration channel do not meet requirements. This mode needs external resistance box, causes the bulky and loss resource of calibration frock of battery charging and discharging equipment big easily, increases the correction cost of battery charging and discharging equipment, consequently, prior art needs to be improved and developed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a tool system for calibrating the precision and the line sequence of battery charging and discharging equipment.
The technical scheme adopted by the invention for solving the technical problem is as follows: a battery charging and discharging equipment precision and line sequence calibration tool system comprises a structure main body, wherein the structure main body comprises a needle bed and a tool, the structure main body further comprises a battery charging and discharging calibration tool system, the battery charging and discharging calibration tool system comprises an upper computer PC, a switch, a middle computer, a power cabinet, a calibration tool, a universal meter, a power cabinet and a needle bed, and the battery charging and discharging calibration tool system further comprises a tool main control board, tool switching and trimming logic, a current crimping probe, a tool crimping copper platform, a voltage adapter board, needle bed control, a current line switching row, a current line, sampling switching and trimming logic and channel control logic;
the tool main control board comprises an RS232 communication module, an RS485 communication module and a WAN network communication module, and the tool main control board is connected with the tool switching and trimming logic so as to control the function switching of the whole tool;
the upper computer is in communication connection with the middle computer, the middle computer is in communication connection with the power cabinet through a WAN network communication module, the middle computer is in communication connection with the calibration tool through an RS485 communication module, the middle computer is in communication connection with the needle bed through an RS485 communication module, and the tool main control board is connected with the universal meter through a WAN network communication module;
the current crimping probe is crimped with the tooling crimping copper platform, and the current crimping probe is crimped with the tooling crimping copper platform to complete the linkage of the needle bed and the tooling;
the tool is provided with a plurality of anode channels and cathode channels, each channel is provided with an independent isolation MOS drive switch, the channel control logic is in control connection with the isolation MOS drive switches, and meanwhile, the channel control logic is in control transmission with a tool main control board through mutual insertion connection;
the needle bed is provided with a plurality of current probe modules, each current probe module is provided with three sampling lines which are respectively a current line, a voltage sampling line and a main voltage sampling line, the current line is used for connecting the anode and the cathode of a probe and the power output part of a power cabinet power supply case, the voltage sampling line and the main voltage sampling line are mainly used for sampling the output voltage of the probe part and collecting the voltage mode trimming data of charging and discharging equipment, the voltage sampling line is used for connecting the anode and the cathode of a battery cell, the voltage output of the anode and the cathode of the target sampling battery equipment can be used for the calibration and trimming work of the battery equipment and the detection work of a cable of the battery needle bed equipment, the sampling points of the main voltage sampling line and the voltage sampling line are the same place and are used for collecting port voltage so as to facilitate the uploading of data and greatly help the calibration work of the battery equipment;
the voltage adapter plate is connected with the voltage sampling line and the double voltage sampling lines, and the voltage adapter plate is directly connected to the power supply case after performing one switching on the voltage sampling line and the double voltage sampling lines on each channel.
Preferably, the upper computer PC is connected with the switch, and the middle computer PC is connected with the switch.
Preferably, the power cabinet is further provided with a pneumatic control unit, and the central computer is in communication connection with the pneumatic control unit.
Preferably, the current line is connected to a current line switching bar, and the current line switching bar is connected to the power supply chassis.
Preferably, the central computer is connected with the tool main control board.
Compared with the prior art, the invention has the beneficial effects that:
a switch is arranged between each port and the adjustable power supply, the butt joint ports are used for being connected with battery charging and discharging channels on charging and discharging equipment of the battery, and the universal meter feeds back numerical values fed back by the current sampling module and numerical values acquired by the universal meter to the central computer; the middle computer receives a current value and a voltage value uploaded by a universal meter on the tooling equipment, the current value and the voltage value are uploaded to the upper computer, the current and the voltage on the charging and discharging equipment collected by the upper computer are compared with a numerical value fed back by the universal meter to generate a calibration parameter to be fed back to the battery charging and discharging equipment, when the current or the voltage is calibrated, the current and the voltage on a current calibration channel on the battery charging and discharging equipment sequentially flow to an uncalibrated channel on the battery charging and discharging equipment through a butt joint port, a current sampling module and a butt joint port, or the current and the voltage on the uncalibrated channel on the battery charging and discharging equipment sequentially flow to the current calibration channel on the battery charging and discharging equipment through the butt joint port, the current sampling module and the butt joint port.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic connection diagram of the present invention;
FIG. 3 is a flow chart of the trimming control logic of the power calibration and line sequence detection tool system of the present invention;
FIG. 4 is a flow chart of the power calibration and line sequence detection logic of the line sequence detection tooling system of the present invention;
FIG. 5 is a flow chart of the current calibration of the power calibration and line sequence detection tool system of the present invention;
fig. 6 is a flow chart of the voltage calibration of the power calibration and line sequence detection tool system according to the present invention.
The reference numbers in the figures:
the device comprises an upper computer PC1, a middle position machine 2, a voltage adapter plate 3, a needle bed 4, a current line 5, a voltage sampling line 6, a main voltage sampling line 7, a current crimping probe 8, a tooling crimping copper table 9, an isolation MOS drive switch 10, tooling switching and trimming logic 12, channel control logic 13, a tooling main control plate 14, an Agilent multimeter 15, a power supply cabinet 16 and a power supply cabinet 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
As shown in fig. 1-6, the present invention provides a battery charging and discharging equipment precision and line sequence calibration tooling system, which comprises a main structure body, the structure main body comprises a needle bed 4 and a tool, the tool is mainly used for the precision calibration of the voltage and the current of the battery equipment and the line sequence detection of the equipment cable, the structure main body also comprises a battery charging and discharging calibration tool system, the battery charging and discharging calibration tool system comprises an upper computer PC1, a switch, a middle computer 2, a power cabinet 17, a calibration tool, a universal meter, a power cabinet 16 and a needle bed 4, the battery charging and discharging calibration tool system further comprises a tool main control board 14, tool switching and trimming logic 12, a current crimping probe 8, a tool crimping copper table 9, a voltage adapter plate 3, a needle bed control, a current line switching row, a current line 5, sampling switching and trimming logic and channel control logic 13;
the sampling switching trimming logic designs a trimming mode in the tool according to the requirements of a trimming scheme, switches required channels and loops to complete trimming and calibration work of the battery equipment, the trimming logic module uses a surface mounted MOS to control a current type switch, and the sampling switching part uses an optocoupler switch to switch;
the channel control logic 13 is used for outputting a channel control signal to control the switch of the isolation MOS drive module, the extension part uses two 74 series chips, one is a displacement buffer with 8-bit serial input and parallel output, the other is a transparent latch with eight paths of output, the output is a tristate gate which is a high-performance silicon gate CMOS device, and the 8 channel Darlington current driver is used for a logic level digital circuit, so that the channel control module is opened and closed by independent output;
the tool main control board 14 comprises an RS232 communication module, an RS485 communication module and a WAN network communication module, the tool main control board 14 is connected with the tool switching and trimming logic 12 to realize the function switching of the whole tool, the tool main control board 14 is a main tool control center, a selected chip is a high-density ARM 32-bit microcontroller, and the tool main control board 14 further comprises a key display module and a sampling switching module;
the upper computer is in communication connection with the middle computer 2, the middle computer 2 is in communication connection with the power cabinet 17 through a WAN network communication module, the middle computer 2 is in communication connection with the calibration tool through an RS485 communication module, the middle computer 2 is in communication connection with the needle bed 4 through an RS485 communication module, the tool main control board 14 is connected with a universal meter through a WAN network communication module, the universal meter is an Agilent universal meter 15, the Agilent universal meter 15 is a six-digit semi-digital voltmeter and used for displaying and transmitting voltage and current data of charge-discharge battery equipment, the equipment is in communication with a main board through a WAN, and the equipment is provided with sampling interfaces in the front and back directions and various types of data sampling;
an upper computer module is arranged in the upper computer, the upper computer module controls the tool switching channel by issuing instructions, the upper computer module is a general command center of the system, and all the instructions are issued by the upper computer;
a middle computer module is arranged in the middle computer 2, the middle computer module is connected with the upper computer and the needle bed 4, the middle computer module is communicated with the tool, and the middle computer module is used for data transmission through an RS485 communication module;
the current crimping probe 8 is crimped with the tooling crimping copper platform 9, and the current crimping probe 8 is crimped with the tooling crimping copper platform 9 to complete the linkage of the needle bed 4 and the tooling;
the tool is provided with a plurality of anode channels and cathode channels, each channel is provided with an independent isolation MOS drive switch 10, the channel control logic 13 is in control connection with the isolation MOS drive switch 10, and meanwhile, the channel control logic 13 is in control transmission with a tool main control board 14 through mutual insertion connection;
the needle bed 4 is provided with a plurality of current probe modules, each current probe module is provided with three sampling lines, namely a current line 5, a voltage sampling line 6 and a main voltage sampling line 7, the current line 5 is used for transmitting the output of the power supply module, and the voltage sampling line 6 and the main voltage sampling line 7 are used for collecting voltage mode trimming data of the charging and discharging equipment by mainly sampling probe part output voltage;
the voltage adapter plate 3 is connected with the voltage sampling lines 6 and the double voltage sampling lines, the voltage adapter plate 3 is directly connected to the power supply case 16 after performing one switching on the voltage sampling lines 6 and the double voltage sampling lines on each channel, the voltage adapter plate 3 is mainly used for performing the switching on the voltage sampling lines 6 of the positive electrode and the negative electrode of the battery cell and the auxiliary voltage sampling lines 6, the voltage of the current sampling lines is inconvenient to be directly connected to the power supply case 17 through the compression connection of a lug part because the number of the battery cell sampling lines is too large, and the number of cables reduced by using the voltage adapter module is also convenient to wire;
the needle bed control mainly comprises pneumatic control, power taking connection and communication connection of the whole equipment;
the upper computer PC1 is connected with the switch, and the middle computer 2 is connected with the switch.
The power cabinet 17 is further provided with a pneumatic control unit, and the central computer 2 is in communication connection with the pneumatic control unit.
The current line 5 is connected with a current line switching bar, and the current line switching bar is connected with a power supply case 16.
The middle computer 2 is connected with a tool main control board 14.
A switch is arranged between each port and the adjustable power supply, the butt joint ports are used for being connected with battery charging and discharging channels on charging and discharging equipment of the battery, and the universal meter feeds back numerical values fed back by the current sampling module and numerical values acquired by the universal meter to the central computer; the middle computer receives a current value and a voltage value uploaded by a universal meter on the tooling equipment, the current value and the voltage value are uploaded to the upper computer, the current and the voltage on the charging and discharging equipment collected by the upper computer are compared with a numerical value fed back by the universal meter to generate a calibration parameter to be fed back to the battery charging and discharging equipment, when the current or the voltage is calibrated, the current and the voltage on a current calibration channel on the battery charging and discharging equipment sequentially flow to an uncalibrated channel on the battery charging and discharging equipment through a butt joint port, a current sampling module and a butt joint port, or the current and the voltage on the uncalibrated channel on the battery charging and discharging equipment sequentially flow to the current calibration channel on the battery charging and discharging equipment through the butt joint port, the current sampling module and the butt joint port.
The power calibration and line sequence detection tool system trimming control logic is as follows:
the first step is as follows: starting the test;
the second step: the method comprises the following steps that an upper computer issues a channel switching instruction to control a tool to switch a corresponding channel and a corresponding mode, a battery charging and discharging system tests four modes in total, namely a charging voltage mode (CV), a charging current mode (CC), a discharging current mode (DC) and a line sequence detection mode (VC);
the third step: the upper computer controls the power supply cabinet to start a corresponding channel and a corresponding mode;
the fourth step: waiting for the data to be stable;
the fifth step: the upper computer collects data of the power cabinet;
and a sixth step: the upper computer collects multimeter data;
the seventh step: the upper computer stores the power cabinet data and the multimeter data;
eighth step: the upper computer judges whether the trimming points are finished or not;
the ninth step: the upper computer calculates the trimming code through the power cabinet data and the multimeter data;
the tenth step: the upper computer sends a repair and adjustment code to the power cabinet;
the eleventh step: the test is finished;
the power calibration and line sequence detection tool system has the following line sequence detection logics:
the first step is as follows: starting the test;
the second step: the upper computer issues a channel switching instruction to control the tool to switch a corresponding channel and a corresponding mode, and a line sequence detection mode (VC) is adopted to provide voltage;
the third step: waiting for 1S;
the fourth step: the upper computer samples the main voltage, the double voltages and the power line voltage of the power cabinet to store data;
the fifth step: the upper computer judges the wiring conditions of a main voltage sampling line, a double voltage sampling line and a current line according to the data of the main voltage, the double voltage and the power line voltage of the power cabinet;
and a sixth step: judging that the preliminary voltage sampling is normal;
the seventh step: displaying the detection result in the log list, namely displaying PASS;
the eighth step: confirming that all channels are detected, if the detection is finished, returning the process to the second step, sending a channel switching instruction by the upper computer to control the tool to switch the corresponding channel and the corresponding mode, and continuing to execute the operation of 2-7 steps;
the ninth step: displaying that all the channels are detected, and finishing the line sequence detection process;
the voltage calibration mode of the power supply calibration and line sequence detection tool system is as follows:
fig. 5 represents a voltage calibration mode of the tool system, each channel has an independent isolation MOS drive module, one side is an independent channel copper platform, and the other side is connected by copper bars, and the operation is to control the switching of the tool in a trimming mode in cooperation with a power supply cabinet to create an environment for the tool, the voltage mode calibration mode is to add a load resistor to the positive and negative channels for voltage trimming, in the figure, the switch S6 is a normally closed overcurrent protection board switch, and the switches S4 and S5 are voltage mode trimming switches, and the voltage calibration mainly includes connecting the output voltage of the power supply cabinet to the resistor, and the output is stable, and the power supply cabinet collects the voltage on the copper platform, and meanwhile, the six-bit half voltmeter also collects the voltage output on the copper platform. Calculating by sampling of a six-bit half-multimeter and sampling voltage of the power cabinet to obtain calibration data, and returning the calibration data to the power cabinet;
during retest, in the same way, the power cabinet provides voltage output, the power cabinet and the six-bit half multimeter sample simultaneously, and whether the error between the multimeter sampling value and the power cabinet sampling value is within the precision range is compared;
the method comprises the following specific steps:
voltage trimming: the switches S4 and S5 are closed, and the load resistor is connected;
and (3) carrying out line sequence detection: switches S1 and S2 shown in the figure are closed, a constant voltage output switching power supply V1 is connected between the positive electrode and the negative electrode in series, the channels are singly cut, and when any group of channels are cut through, the voltage of V1 is obtained at the same crimping point;
the current calibration mode of the power supply calibration and line sequence detection tool system is as follows:
fig. 6 represents a current calibration mode of the tool system, each channel has an independent isolation MOS drive module, one side is an independent channel copper platform, and the other side is connected by copper bars, and the operation is to control the switching of the tool in a trimming mode in cooperation with a power supply cabinet to create an environment for the tool, and there are two current mode calibration modes, one is current calibration during charging, the current calibration mode is to perform charging current trimming by directly short-circuiting an anode channel and a cathode channel, the other is discharge current calibration, the current calibration mode is to connect a constant voltage output switch power supply V1 between the anode channel and the cathode channel, in the figure, the S6 switch is a normally closed overcurrent protection board switch, the S1 and S2 are discharge current mode trimming switches, and the S3 is a charging current mode trimming switch;
the current calibration mainly comprises the step of short-circuiting the output of the power cabinet, wherein the output is stable. The power cabinet is through gathering the electric current on the copper platform, and here, six half voltmeter also can gather hall transmission's current output. Calculating sampling current of the six-bit half-multimeter and the power cabinet to obtain calibration data, and returning the calibration data to the power cabinet;
when the power cabinet is rechecked, in the same way, the power cabinet provides current output, the power cabinet and the six-bit half-multimeter sample simultaneously, and whether the error between the sampling value of the multimeter and the sampling value of the power cabinet is within the precision range is compared;
the method comprises the following specific steps:
and (3) modifying the charging current: switch S3 is shown closed with the channel positive shorted to the channel negative;
discharge current trimming: switches S1 and S2 shown in the figure are closed, the constant voltage output switching power supply V1 is connected between the positive electrode and the negative electrode in series, the channels are singly cut, and when the channels are cut through, the voltage of the power supply V1 can be connected to the same crimping point to be repaired.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. The battery charging and discharging equipment precision and line sequence calibration tool system is characterized by comprising a structure body, wherein the structure body comprises a needle bed and a tool, and the structure body further comprises a battery charging and discharging calibration tool system, wherein the battery charging and discharging calibration tool system comprises an upper computer PC, a switch, a middle computer, a power cabinet, a calibration tool, a universal meter, a power cabinet and a needle bed, and further comprises a tool main control board, tool switching and trimming logic, a current crimping probe, a tool crimping copper platform, a voltage adapter plate, needle bed control, a current line switching and connecting row, a current line, sampling switching and trimming logic and channel control logic;
the tool main control board comprises an RS232 communication module, an RS485 communication module and a WAN network communication module, and the tool main control board is connected with the tool switching and trimming logic so as to control the function switching of the whole tool;
the upper computer is in communication connection with the middle computer, the middle computer is in communication connection with the power cabinet through a WAN network communication module, the middle computer is in communication connection with the calibration tool through an RS485 communication module, the middle computer is in communication connection with the needle bed through an RS485 communication module, and the tool main control board is connected with the universal meter through a WAN network communication module;
the current crimping probe is crimped with the tooling crimping copper platform, and the current crimping probe is crimped with the tooling crimping copper platform to complete the linkage of the needle bed and the tooling;
the tool is provided with a plurality of anode channels and cathode channels, each channel is provided with an independent isolation MOS drive switch, the channel control logic is in control connection with the isolation MOS drive switches, and meanwhile, the channel control logic is in control transmission with a tool main control board through mutual insertion connection;
the needle bed is provided with a plurality of current probe modules, each current probe module is provided with three sampling lines which are respectively a current line, a voltage sampling line and a main voltage sampling line, the current line is used for transmitting the output of the power supply module, and the voltage sampling line and the main voltage sampling line mainly sample partial output voltage of the probe and are used for voltage mode trimming data acquisition of the charging and discharging equipment;
the voltage adapter plate is connected with the voltage sampling lines and the double voltage sampling lines, and the voltage adapter plate is directly connected to the power supply case after performing one switching on the voltage sampling lines and the double voltage sampling lines on each channel.
2. The battery charging and discharging equipment precision and line sequence calibration tool system according to claim 1, characterized in that the upper computer PC is connected with a switch, and the middle computer is connected with the switch.
3. The battery charging and discharging equipment precision and line sequence calibration tool system according to claim 1, characterized in that the power cabinet is further provided with a pneumatic control, and the central computer is in communication connection with the pneumatic control.
4. The battery charging and discharging equipment precision and line sequence calibration tool system according to claim 1, characterized in that the current line is connected with a current line switching bar, and the current line switching bar is connected with a power supply case.
5. The battery charging and discharging equipment precision and line sequence calibration tool system according to claim 1, wherein the central computer is connected with a tool main control board.
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| CN202210395566.3A CN114778976A (en) | 2022-04-15 | 2022-04-15 | Battery charging and discharging equipment precision and line sequence calibration tool system |
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| CN202210395566.3A CN114778976A (en) | 2022-04-15 | 2022-04-15 | Battery charging and discharging equipment precision and line sequence calibration tool system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115267294A (en) * | 2022-07-29 | 2022-11-01 | 广东舜势测控设备有限公司 | Formation equipment calibration system and formation equipment calibration method |
| CN116360377A (en) * | 2023-06-01 | 2023-06-30 | 深圳和润达科技有限公司 | Data processing method for battery cell formation component capacity and distributed control system |
| CN116559758A (en) * | 2023-07-10 | 2023-08-08 | 深圳和润达科技有限公司 | Parameter correction system and method for chemical composition equipment |
| CN117225716A (en) * | 2023-11-13 | 2023-12-15 | 深圳市今天国际软件技术有限公司 | Automatic tool calibration method and device, computer equipment and storage medium |
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2022
- 2022-04-15 CN CN202210395566.3A patent/CN114778976A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115267294A (en) * | 2022-07-29 | 2022-11-01 | 广东舜势测控设备有限公司 | Formation equipment calibration system and formation equipment calibration method |
| CN116360377A (en) * | 2023-06-01 | 2023-06-30 | 深圳和润达科技有限公司 | Data processing method for battery cell formation component capacity and distributed control system |
| CN116360377B (en) * | 2023-06-01 | 2023-08-29 | 深圳和润达科技有限公司 | Data processing method for battery cell formation component capacity and distributed control system |
| CN116559758A (en) * | 2023-07-10 | 2023-08-08 | 深圳和润达科技有限公司 | Parameter correction system and method for chemical composition equipment |
| CN117225716A (en) * | 2023-11-13 | 2023-12-15 | 深圳市今天国际软件技术有限公司 | Automatic tool calibration method and device, computer equipment and storage medium |
| CN117225716B (en) * | 2023-11-13 | 2024-02-06 | 深圳市今天国际软件技术有限公司 | Automatic tool calibration method and device, computer equipment and storage medium |
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