Full-automatic power supply calibration method based on automatic production line

Abstract

The invention relates to a full-automatic power supply calibration method based on an automatic production line, and belongs to the technical field of lithium battery detection, and the method comprises the following steps: S1, a system generates a calibration task; s2, a stacking machine is fed into a tool; s3, the DCS receives the calibration request; s4, a press machine pressing signal is sent; s5, automatically writing a calibration channel gear parameter; s6, checking tool and multimeter network communication; s7, starting a calibration process; s8, generating a calibration report; and S9, the DCS controls the press to bounce off, and the stacking machine takes out the tool. According to the full-automatic power supply calibration method based on the automatic production line, the lithium battery is detected and calibrated by adopting the calibration method, an operator can be effectively prevented from being in direct contact with a tool, the problem of potential safety hazards such as electric shock when the operator operates the tool can be effectively avoided, and meanwhile, the problem that the lithium battery is damaged before calibration is solved. The problem that the communication line needs to be switched manually is solved by using the command of switching the port.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery detection, and in particular to a fully automatic power supply calibration method based on an automated production line. Background Art

[0002] The current battery testing equipment mainly consists of a power supply and a press. When the rectangular battery is divided into capacities, the fixture carrying the battery cell is placed in the press, and the charge and discharge test is started to obtain the charge and discharge data to determine the quality of the battery cell. The stability of the output power is extremely critical. Before the formal test and after continuous long-term operation, the power supply needs to be calibrated to ensure that the power supply can continue to output stably.

[0003] At present, the traditional power supply calibration mainly includes: (1) disconnecting the communication between the battery detection system and the power supply, disassembling the channel current line at the output end of the power supply, and connecting the positive and negative poles to the positive and negative poles of the fake battery cell in the calibration tooling, and at the same time connecting the network cable to ensure that the calibration software of the calibrator communicates normally, and then manually setting the calibration measurement parameters and starting the calibration measurement. (2) The second common method is that there is no need to disassemble the current line at the output end of the power supply. The structure of the calibration tooling is almost the same as that of the ordinary fixture carrying the battery cell. The calibration tooling is a fixture that fixes the fake battery cell and is equipped with a multimeter such as 34461A. The calibration tooling is sent to the equipment press, and the positive and negative poles of the press can be manually pressed to the two ends of the fake battery cell in the tooling. Subsequently, the communication between the battery detection system and the power supply is disconnected, and the computer of the calibrator is connected. The calibration parameters are set, and the parameters such as the channel gear that needs to be calibrated and measured are selected to start the formal calibration.

[0004] In the automated battery cell testing production line, the fixture with the battery cell can be automatically sent to the equipment press by the stacker, automatically pressed and the battery charging and discharging testing process can be started. When the power supply equipment needs to be calibrated and measured, after the fixture is sent to the press, it needs to be manually pressed and clamped, and the communication between the power supply and the battery testing system is disconnected before the calibrator can start the next step of calibration.

[0005] There are several obvious defects in the above-mentioned traditional calibration scheme: 1. The calibration scheme belongs to the semi-automatic mode. During the calibration process, many pre-calibration setting tasks require manual operation by the calibrator, such as manually pressing the clamping fixture, manually setting the multimeter, etc. 2. The calibrator needs a long period of learning and training to understand and be familiar with the calibration process, but during the calibration process, there are reasons such as calibration personnel's mistakes and carelessness, which lead to calibration failure interruption and safety problems. These are mainly due to the cumbersome and insufficient process of the conventional calibration process scheme. 3. Since the one-to-one TCP communication scheme is adopted between the power supply and the battery detection system, before starting the calibration, the communication between the power supply and the battery detection system needs to be disconnected to establish the communication between the power supply and the calibration software, which makes the operation process more cumbersome. 4. Even if the battery cell detection production line is fully automated, the power supply calibration work is still carried out in a semi-automatic way during the power supply calibration process. The main problem is that communication multimeters, tooling and other equipment are required for calibration.

[0006] In summary, the present application proposes a fully automatic power supply calibration method based on an automated production line to solve the above-mentioned problems. Summary of the invention

[0007] In view of the shortcomings of the prior art, the present invention provides a fully automatic power supply calibration method based on an automated production line, which has the advantages of high automation, high safety, high calibration efficiency and low calibration difficulty. It solves the problem that the traditional calibration method requires the operator to go to the press to perform manual operation and manually disconnect the communication between the power supply and the battery detection system, which easily causes safety hazards and affects the calibration efficiency.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A fully automatic power supply calibration method based on an automated production line comprises the following steps:

[0010] S1. System generates calibration task: When the device power needs to be calibrated, the system generates a device power calibration task and waits for task scheduling to execute. The task can be generated manually or periodically. For example, a calibration task is generated after the device has been working for half a year.

[0011] S2. Stacker sends tooling: After the task is generated, the system notifies the stacker to send the calibration tooling to the press of the equipment that needs to be calibrated. After the operation is completed, the system is notified that the tooling has been sent in and is ready;

[0012] S3, DCS receives calibration request: the system sends the calibration request to the DCS host computer, and the DCS receives the calibration task of the corresponding equipment;

[0013] S4. Send the press machine pressing signal: The DCS host computer controls the press machine to press automatically. If the pressing fails, the interface will warn you. After manually troubleshooting the communication problem, press the machine again automatically. If the pressing is successful, proceed to the next step.

[0014] S5. Automatically write calibration channel gear parameters: DCS generates calibration parameters of the channel, range, current, voltage and calibration line sequence that need to be calibrated as needed, and automatically sets them into the calibration program;

[0015] S6. Check the tooling and multimeter network communication: Before formal calibration, it is necessary to ensure that the calibration tooling and the multimeter network communication are normal. The DCS sends a power port switching command to switch the port in normal mode to the calibration mode port, ensuring that the power communication is disconnected from the DCS, so as to communicate normally with the calibration program. If the communication fails, you can wait for communication again. If the number of retries is exceeded, the calibration can be interrupted and the communication problem can be manually checked;

[0016] S7, start calibration process: after parameters and communication are normal, the program starts the calibration process, executes calibration tasks, measures, and writes KB values;

[0017] S8. Generate calibration report: If there are abnormal problems in the calibration, you can choose to recalibrate. After the calibration is completed normally, a calibration report is generated, and the calibration program sends a power port switching command to switch the port in the calibration mode back to the normal mode port. Finally, the DCS is notified that the calibration task is completed;

[0018] S9. DCS controls the press to pop open and the stacker to take out the tooling: After receiving the end signal of the calibration program, DCS controls the press to pop open, automatically reconnects the communication power supply, notifies the system that the calibration task is completed, and the system dispatches the stacker to take out the tooling and put it back to the predetermined position.

[0019] Furthermore, in S1, the system administrator or equipment maintenance personnel can manually adjust the frequency or conditions of task generation, and view and manage the list of calibration tasks to be executed.

[0020] Furthermore, in S2, the stacker operator can monitor the operating status of the stacker and manually intervene or adjust the process of tooling delivery.

[0021] Furthermore, the DCS operator in S3 can view the details of the calibration request, including the requested equipment and calibration parameters, and has the authority to confirm or reject the request.

[0022] Furthermore, in S4, the DCS operator can view the warning information when the pressing fails, and manually adjust the press parameters or resend the pressing signal as needed.

[0023] Furthermore, the DCS operator or system administrator in S5 can view and modify the calibration parameters to ensure they meet the equipment requirements.

[0024] Furthermore, if communication fails in S6, the DCS operator or system administrator can retry communication or manually troubleshoot the communication problem.

[0025] Furthermore, during the calibration process in S7, the system administrator or DCS operator can monitor the calibration progress and manually intervene or stop the calibration if necessary.

[0026] Furthermore, in S8, system administrators or equipment maintenance personnel can view and export calibration reports for equipment maintenance and performance evaluation.

[0027] Furthermore, in S9, the stacker operator can monitor the process of tooling removal and intervene manually when necessary; the system administrator can confirm the end status of the calibration task and schedule the next task.

[0028] Compared with the prior art, the present invention provides a fully automatic power supply calibration method based on an automated production line, which has the following beneficial effects:

[0029] 1. The fully automatic power calibration method based on the automated production line can effectively avoid direct contact between operators and tooling by using the above calibration method to detect and calibrate the lithium battery. This can effectively avoid potential safety hazards such as electric shock when the operator operates the tooling. At the same time, before calibration, the command to switch ports is used to solve the problem of manually switching communication lines. At the same time, a communication retry function can be added to enhance the communication stability of the tooling and multimeter.

[0030] 2. This fully automatic power supply calibration method based on the automated production line, DCS automatically generates the parameter information that needs to be calibrated, which can effectively avoid the problem of incorrect input that is prone to occur during traditional manual settings, and at the same time reduce the difficulty of calibration. The operator only needs to apply for the calibration task in the system, and then wait for the calibration program to be automatically executed. In the middle, it only needs to observe whether there are any communication problems. This greatly reduces the operating threshold for operators. Compared with traditional semi-automatic operations, this technical method is a fully automatic mode, and operators can easily master the process, which is convenient for packaging complex, error-prone, and repetitive tasks and automatically executing them by the program. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The present invention is a calibration flow chart of a fully automatic power supply calibration method based on an automated production line. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1 In this embodiment, a fully automatic power calibration method based on an automated production line includes the following steps:

[0034] S1. System generates calibration task: When the device power needs to be calibrated, the system generates a device power calibration task and waits for task scheduling to execute. The task can be generated manually or periodically. For example, a calibration task is generated after the device has been working for half a year.

[0035] S2. Stacker sends tooling: After the task is generated, the system notifies the stacker to send the calibration tooling to the press of the equipment that needs to be calibrated. After the operation is completed, the system is notified that the tooling has been sent in and is ready;

[0036] S3, DCS receives calibration request: the system sends the calibration request to the DCS host computer, and the DCS receives the calibration task of the corresponding equipment;

[0037] S4. Send the press machine pressing signal: The DCS host computer controls the press machine to press automatically. If the pressing fails, the interface will warn you. After manually troubleshooting the communication problem, press the machine again automatically. If the pressing is successful, proceed to the next step.

[0038] S5. Automatically write calibration channel gear parameters: DCS generates calibration parameters of the channel, range, current, voltage and calibration line sequence that need to be calibrated as needed, and automatically sets them into the calibration program;

[0039] S6. Check the tooling and multimeter network communication: Before formal calibration, it is necessary to ensure that the calibration tooling and the multimeter network communication are normal. The DCS sends a power port switching command to switch the port in normal mode to the calibration mode port, ensuring that the power communication is disconnected from the DCS, so as to communicate normally with the calibration program. If the communication fails, you can wait for communication again. If the number of retries is exceeded, the calibration can be interrupted and the communication problem can be manually checked;

[0040] S7, start calibration process: after parameters and communication are normal, the program starts the calibration process, executes calibration tasks, measures, and writes KB values;

[0041] S8. Generate calibration report: If there are abnormal problems in the calibration, you can choose to recalibrate. After the calibration is completed normally, a calibration report is generated, and the calibration program sends a power port switching command to switch the port in the calibration mode back to the normal mode port. Finally, the DCS is notified that the calibration task is completed;

[0042] S9. DCS controls the press to pop open and the stacker to take out the tooling: After receiving the end signal of the calibration program, DCS controls the press to pop open, automatically reconnects the communication power supply, notifies the system that the calibration task is completed, and the system dispatches the stacker to take out the tooling and put it back to the predetermined position.

[0043] In this embodiment, by adopting the above-mentioned calibration method to detect and calibrate the lithium battery, the operator can be effectively prevented from directly contacting the tooling, and can effectively avoid safety hazards such as electric shock when the operator operates the tooling. At the same time, before calibration, the command of switching ports is used to solve the problem of manually switching the communication line. At the same time, a communication retry function can be added to enhance the communication stability of the tooling and the multimeter.

[0044] In this embodiment, the system administrator or equipment maintenance personnel in S1 can manually adjust the frequency or conditions of task generation, and view and manage the list of calibration tasks to be executed.

[0045] In this embodiment, the stacker operator in S2 can monitor the operating status of the stacker and manually intervene or adjust the process of feeding the tooling.

[0046] In this embodiment, the DCS operator in S3 can view the detailed information of the calibration request, including the requested equipment and calibration parameters, and has the authority to confirm or reject the request.

[0047] In this embodiment, when pressing fails, the DCS operator in S4 can view the warning information and manually adjust the press parameters or resend the pressing signal as needed.

[0048] In this embodiment, the DCS operator or system administrator in S5 can view and modify the calibration parameters to ensure that they meet the equipment requirements.

[0049] In this embodiment, if the communication fails in S6, the DCS operator or system administrator can retry the communication or manually troubleshoot the communication problem.

[0050] In this embodiment, during the calibration process in S7, the system administrator or DCS operator can monitor the calibration progress and manually intervene or stop the calibration when necessary.

[0051] In this embodiment, in S8, the system administrator or equipment maintenance personnel can view and export the calibration report for equipment maintenance and performance evaluation.

[0052] In this embodiment, in S9, the stacker operator can monitor the process of removing the tooling and manually intervene when necessary; the system administrator can confirm the end status of the calibration task and schedule the next task.

[0053] It should be noted that in this technical method, the operator can complete all calibration tasks directly in the central control room where the DCS host computer is located, without the need to frequently move between the central control room and the equipment, and without the need to manually control the stacker, tooling and other operations, to avoid dangerous hazards such as electric shock. At the same time, the operation is simple and easy to use, leaving the complex process to the program to execute. The operator only needs to understand a few simple signal information, truly realizing the full-process fully automated power calibration mode, and as the number of devices increases, the advantages will become more obvious, and the operator can complete the power calibration task without having to remember the exact location of the equipment.

[0054] The working principle of the present invention is:

[0055] After the system creates a calibration task, it will first dispatch the stacker to automatically and accurately deliver the tooling fixture to the equipment press, and then request the DCS to start the calibration task. After the DCS determines that there is a fixture in the press, it starts to control the automatic pressing press, starts the calibration program, writes the configuration information required for calibration, and waits for automatic calibration. The automatic calibration program starts to communicate with the tooling and multimeter, waits for the network connection to be successful, and then switches the communication port of the power supply from normal mode to calibration mode, thereby disconnecting the communication between the power supply and the DCS; after waiting for communication and switching modes to be completed, the calibration program automatically starts calibration, measurement and other operations, automatically generates a report after the measurement is completed, switches back to normal mode, notifies the DCS to end the calibration task and closes the calibration program. Finally, the DCS automatically controls the press to pop up, uploads the calibration results, and requests the system to remove the tooling fixture to complete the calibration task of a power supply device.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic power supply calibration method based on an automated production line, characterized in that: The following steps are involved: S1. System generates calibration task: When the device power needs to be calibrated, the system generates a device power calibration task and waits for task scheduling to execute. The task can be generated manually or periodically. For example, a calibration task is generated after the device has been working for half a year. S2. Stacker sends tooling: After the task is generated, the system notifies the stacker to send the calibration tooling to the press of the equipment that needs to be calibrated. After the operation is completed, the system is notified that the tooling has been sent in and is ready; S3, DCS receives calibration request: the system sends the calibration request to the DCS host computer, and the DCS receives the calibration task of the corresponding equipment; S4. Send the press machine pressing signal: The DCS host computer controls the press machine to press automatically. If the pressing fails, the interface will warn you. After manually troubleshooting the communication problem, press the machine again automatically. If the pressing is successful, proceed to the next step. S5. Automatically write calibration channel gear parameters: DCS generates calibration parameters of the channel, range, current, voltage and calibration line sequence that need to be calibrated as needed, and automatically sets them into the calibration program; S6. Check the tooling and multimeter network communication: Before formal calibration, it is necessary to ensure that the calibration tooling and the multimeter network communication are normal. The DCS sends a power port switching command to switch the port in normal mode to the calibration mode port, ensuring that the power communication is disconnected from the DCS, so as to communicate normally with the calibration program. If the communication fails, you can wait for communication again. If the number of retries is exceeded, the calibration can be interrupted and the communication problem can be manually checked; S7, start calibration process: after parameters and communication are normal, the program starts the calibration process, executes calibration tasks, measures, and writes KB values; S8. Generate calibration report: If there are abnormal problems in the calibration, you can choose to recalibrate. After the calibration is completed normally, a calibration report is generated, and the calibration program sends a power port switching command to switch the port in the calibration mode back to the normal mode port. Finally, the DCS is notified that the calibration task is completed; S9. DCS controls the press to pop open and the stacker to take out the tooling: After receiving the end signal of the calibration program, DCS controls the press to pop open, automatically reconnects the communication power supply, notifies the system that the calibration task is completed, and the system dispatches the stacker to take out the tooling and put it back to the predetermined position.

2. The fully automatic power calibration method based on an automated production line according to claim 1, characterized in that: In S1, system administrators or equipment maintenance personnel can manually adjust the frequency or conditions of task generation, and view and manage the list of calibration tasks to be executed.

3. The fully automatic power calibration method based on an automated production line according to claim 1, characterized in that: In S2, the stacker operator can monitor the operating status of the stacker and manually intervene or adjust the process of tooling delivery.

4. The fully automatic power calibration method based on an automated production line according to claim 1, characterized in that: In S3, the DCS operator can view the details of the calibration request, including the requested equipment and calibration parameters, and has the authority to confirm or reject the request.

5. The fully automatic power calibration method based on an automated production line according to claim 1, characterized in that: In S4, the DCS operator can view the warning information when the pressing fails, and manually adjust the press parameters or resend the pressing signal as needed.

6. The fully automatic power calibration method based on an automated production line according to claim 1, characterized in that: In S5, the DCS operator or system administrator can view and modify calibration parameters to ensure they meet equipment requirements.

7. The fully automatic power calibration method based on an automated production line according to claim 1, characterized in that: If communication fails in S6, the DCS operator or system administrator can retry communication or manually troubleshoot the communication problem.

8. The fully automatic power calibration method based on an automated production line according to claim 1, characterized in that: During the calibration process in S7, the system administrator or DCS operator can monitor the calibration progress and manually intervene or stop the calibration if necessary.

9. The fully automatic power calibration method based on an automated production line according to claim 1, characterized in that: In S8, system administrators or equipment maintenance personnel can view and export calibration reports for equipment maintenance and performance evaluation.

10. The fully automatic power calibration method based on an automated production line according to claim 1, characterized in that: In S9, the stacker operator can monitor the process of tooling removal and intervene manually when necessary; the system administrator can confirm the end status of the calibration task and schedule the next task.

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