Direct-current support capacitor element metal spraying quality control device and dynamic data analysis method

Abstract

The invention discloses a direct-current support capacitor element metal spraying quality control device and a dynamic data analysis method, and belongs to the technical field of capacitor manufacturing. The device comprises a sensor group which is arranged on each spray gun loop of metal spraying equipment and is used for collecting voltage, current, air pressure and air humidity parameters of each spray gun; the spray gun state detection module is used for collecting a working state signal of each spray gun; the data acquisition module is used for receiving the voltage, current, air pressure and air humidity parameters and the working state signal; the PC end control system is used for dynamically analyzing the voltage, current, air pressure and air humidity parameters when the working state signal of any spray gun is detected to be in an ON state, and judging whether the parameters are abnormal or not according to a preset threshold value range; and the control output module is used for controlling the metal spraying equipment to stop running when the PC end control system judges that the metal spraying equipment is abnormal. The metal spraying device can guarantee the stability of metal spraying quality.

Description

Technical Field

[0001] This invention belongs to the field of capacitor manufacturing technology, specifically relating to a quality control device for gold sputtering of DC-supported capacitor elements and a dynamic data analysis method. Background Technology

[0002] DC-link capacitors, also known as DC-link capacitors, play a crucial role in flexible DC transmission. They are primarily used to absorb high-amplitude pulsating currents drawn from the inverter to the DC-link, preventing the generation of high-amplitude pulsating voltages across the DC-link impedance. This keeps the power supply voltage fluctuations at the inverter end within acceptable limits, while also preventing voltage overshoot and transient overvoltages from the DC-link from affecting the inverter.

[0003] In recent years, with the increasing scale of new energy power generation such as photovoltaics and wind power, flexible DC transmission technology has been increasingly put on the agenda. This technology has advantages such as suppressing harmonics, reducing reactive power compensation capacity, and avoiding commutation failures, making it a major direction for the development of current power transmission and distribution technology. DC support capacitors, with their superior electrical performance, have been widely used in flexible DC transmission projects.

[0004] The gold spraying process in capacitor production mainly uses an electric arc to melt various solder materials and atomize them under high pressure. The pulverized metal particles are then sprayed at high speed into the gaps between the thin film layers of the capacitor element, which are highly sensitive to heat. This creates an equipotential metal electrode surface on the element end face from the inner layer to the outer layer, providing a bridging platform for electrode lead-out.

[0005] The quality of gold plating on capacitor components is closely related to the overall performance of the capacitor. The size of the metal particles on the component's end face and the thickness of the metal layer directly affect the component's equivalent resistance (ESR) and dielectric loss tangent (tanδ). The high uniformity of the gold plating directly affects subsequent processes such as soldering and assembly. Studies have shown that the size of the gold plating particles, the thickness and uniformity of the gold plating end face, the component's ESR, and the dielectric loss tangent (tanδ) are related to parameters such as voltage, current, air pressure, humidity, distance, and plating time during the gold plating process.

[0006] However, existing technologies lack effective means for real-time monitoring and dynamic analysis of various parameters during the gold spraying process, making it impossible to detect parameter anomalies in a timely manner and take corresponding measures. This results in unstable control of gold spraying quality, affecting the overall performance and consistency of capacitor products. Summary of the Invention

[0007] In view of this, the present invention provides a quality control device and dynamic data analysis method for gold plating of DC-supported capacitor components. It can collect real-time data on the voltage, current, air pressure, air humidity, and operating status of each spray gun in the gold plating machine, dynamically analyze relevant data during the operation of each spray gun, set threshold ranges, and issue alarms when abnormalities occur. This allows for the control of relevant parameters during gold plating to ensure the quality of the component gold plating.

[0008] The technical solution adopted in this invention is: a quality control device for gold plating of DC-supported capacitor elements, comprising: The sensor array is installed on each spray gun circuit of the gold spraying equipment to collect voltage, current, air pressure and air humidity parameters of each spray gun; The spray gun status detection module is used to collect the working status signal of each spray gun; The data acquisition module is used to receive the voltage, current, air pressure and air humidity parameters, as well as the operating status signal; The PC-based control system is used to dynamically analyze the voltage, current, air pressure, and air humidity parameters when the working status signal of any spray gun is detected to be ON, and to determine whether there is an abnormality based on a preset threshold range. The control output module is used to control the gold spraying equipment to stop operating when the PC-side control system determines that an abnormality has occurred.

[0009] Optionally, the sensor group includes a voltage sensor, a current sensor, a barometric pressure sensor, and an air humidity sensor, each of which has on-site data display function and / or analog signal output function.

[0010] Optionally, the spray gun status detection module obtains the working status signal by drawing out the idle normally open contact signal of the intermediate relay of the spray control output of the spraying equipment.

[0011] Optionally, the gold spraying equipment is a multi-gun gold spraying equipment, and each spray gun circuit is equipped with an independent sensor group.

[0012] Optionally, the PC-based control system includes: a parameter setting module for setting communication parameters and the base values, upper and lower ranges, and operational status of the voltage, current, air pressure, and air humidity of each spray gun; a real-time display module for displaying the instantaneous values ​​and real-time waveforms of the voltage, current, air pressure, and air humidity of each spray gun; a dynamic analysis module for performing dynamic analysis on the voltage, current, air pressure, and air humidity of each spray gun, and calculating the maximum, minimum, and average values; an alarm recording module for recording and displaying alarm time, alarm variables, and alarm values; and a historical data query module for querying and replaying historical data on the voltage, current, air pressure, and air humidity of each spray gun.

[0013] This invention also provides a dynamic data analysis method for gold plating of DC-supported capacitor elements, applied to the aforementioned quality control device for gold plating of DC-supported capacitor elements, comprising: Collect the voltage, current, air pressure, and air humidity parameters of each spray gun in the gold spraying equipment, as well as the working status signal of each spray gun; When the working status signal of any spray gun is detected to be ON, the voltage, current, air pressure and air humidity parameters of the spray gun are collected at a preset frequency, and the collected parameters are stored in the database. The voltage, current, air pressure and air humidity parameters are dynamically analyzed to calculate the maximum value, minimum value and average value of each parameter; and the average value is determined according to the action base value and the upper and lower ranges to determine whether the average value exceeds the threshold range. If an abnormality is detected, the gold spraying equipment will be stopped.

[0014] Optionally, when calculating the mean, the average of the remaining data is calculated after removing the maximum and minimum values. The specific calculation formula is: Q avg =(SUM(List)-Q max -Q min ) / (n-2); where Q avg Q is the mean, SUM(List) is the sum of all elements in the set, and Q is the sum of all elements in the set. max Q is the maximum value in the set. min Let n be the minimum value in the set, and n be the length of the set, where n ≥ 3.

[0015] Optionally, the condition for determining whether the mean value exceeds the threshold range is: when the action state is enabled, and the mean value is less than or equal to the action base value minus the action base value multiplied by the lower range percentage, or the mean value is greater than or equal to the action base value plus the action base value multiplied by the upper range percentage, it is determined to exceed the threshold range.

[0016] Optionally, after detecting that the spray gun's working status signal is ON, a preset time is delayed before starting data analysis to avoid errors caused by unstable parameters in the initial stage.

[0017] Optionally, it also includes: after an alarm signal is output, checking the historical data of the corresponding parameters based on the alarm information to determine whether the data loss or equipment failure is caused by communication abnormality; if it is an equipment failure, repairing the equipment until the fault is eliminated; after the fault is eliminated, performing a reset operation to make the gold spraying equipment run again.

[0018] Optionally, the method is implemented using a multi-task architecture, including a main task and multiple sub-tasks. The main task is used for user interaction operations, and the sub-tasks include data acquisition tasks, data display and storage tasks, historical data viewing tasks, and data analysis tasks. The data analysis tasks further include data analysis sub-tasks for the voltage, current, air pressure, and air humidity of each spray gun.

[0019] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention enables real-time acquisition of key parameters such as voltage, current, air pressure, and air humidity by setting up sensor groups on each spray gun circuit of the gold spraying equipment, thus providing a data foundation for gold spraying quality control.

[0020] 2. This invention uses a PC-based control system to dynamically analyze the collected parameters, enabling real-time monitoring of parameter change trends and timely detection of anomalies.

[0021] 3. This invention uses a preset threshold range for judgment. When the parameter exceeds the range, it automatically stops the machine and alarms, effectively preventing gold spraying quality problems caused by abnormal parameters.

[0022] 4. This invention uses the method of calculating the mean after removing the maximum and minimum values, which eliminates the influence of communication abnormalities and external interference factors and improves the accuracy of data analysis.

[0023] 5. This invention adopts a multi-task architecture, which can simultaneously handle multiple tasks such as data acquisition, display, storage and analysis, thereby improving the system's real-time performance and responsiveness. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the sensor arrangement for the quality control device for gold plating of DC-supported capacitor elements provided in Embodiment 1 of the present invention. Figure 2 This is a schematic diagram of the data acquisition and control output of the gold spraying quality control device for DC support capacitor elements provided in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the spray gun working status acquisition of the quality control device for gold spraying of DC support capacitor elements provided in Embodiment 1 of the present invention. Figure 4This is a schematic diagram of the protection output of the quality control device for gold plating of DC support capacitor elements provided in Embodiment 1 of the present invention; Figure 5 This is the main screen for real-time data detection and analysis control of the gold spraying quality control device for DC support capacitor elements provided in Embodiment 1 of the present invention. Figure 6 This is the alarm parameter setting screen of the quality control device for gold plating of DC support capacitor elements provided in Embodiment 1 of the present invention; Figure 7 This is a historical data playback screen of the quality control device for gold plating of DC support capacitor elements provided in Embodiment 1 of the present invention; Figure 8 This is a flowchart of the dynamic data analysis method for gold sputtering of DC support capacitor elements provided in Embodiment 2 of the present invention; Figure 9 This is a task structure diagram of the control system for the quality control device for gold plating of DC support capacitor elements provided in Embodiment 2 of the present invention. Detailed Implementation

[0026] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0027] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0028] It should also be understood that the term “and / or” as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0029] As used in this specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0030] Furthermore, in the description of this invention and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of the invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0032] Example 1 like Figures 1 to 6 As shown in the figure, this embodiment of the invention provides a quality control device for gold spraying of DC-supported capacitor elements. This embodiment uses a four-gun gold spraying equipment as an example for description. The device includes a sensor group, a spray gun status detection module, a data acquisition module, a PC-based control system, and a control output module.

[0033] like Figure 1 As shown, sensor arrays are installed on each spray gun circuit of the gold spraying equipment to collect voltage, current, air pressure, and air humidity parameters for each spray gun. In this embodiment, the gold spraying equipment is a four-gun gold spraying system, with each gun circuit equipped with a voltage sensor, current sensor, air pressure sensor, and air humidity sensor. Each sensor has on-site data display and analog signal output functions, allowing for both on-site viewing of parameter values ​​and outputting analog signals to the data acquisition module for centralized processing.

[0034] like Figure 3 As shown, the spray gun status detection module is connected to the control circuit of the gold spraying equipment to collect the working status signal of each spray gun. Specifically, KA in the figure is the intermediate relay for gold spraying control output. When KA is energized, its normally open contact closes, the corresponding solenoid valve actuates, and gold spraying begins for that gun. The spray gun status detection module obtains the working status signals S1, S2, S3, and S4 of each spray gun by extracting the signal from the idle normally open contact of the intermediate relay for gold spraying control output of the gold spraying equipment.

[0035] like Figure 2 As shown, the data acquisition module is connected to the sensor group and the spray gun status detection module to receive voltage, current, air pressure, and air humidity parameters, as well as operating status signals. All analog signals and digital inputs are fed into the data acquisition module, which is connected to the PC-based control system.

[0036] The PC-based control system is connected to the data acquisition module to display voltage, current, air pressure, and air humidity parameters and their waveforms in real time. It performs dynamic analysis on these parameters and determines whether there are any abnormalities based on preset threshold ranges.

[0037] like Figures 5 to 7 As shown, the PC-based control system includes a parameter setting module, a real-time display module, a dynamic analysis module, an alarm recording module, and a historical data query module.

[0038] Figure 5 The main screen of the control system shows the following on the left side from top to bottom: communication, gun 1, gun 2, gun 3, gun 4, alarm indicator light, and alarm reset button; the middle shows real-time data and waveforms of voltage, current, air pressure, and humidity; the right side shows the dynamic average data of voltage, current, air pressure, and humidity during gold spraying, as well as alarm records; and the bottom of the screen shows the parameter setting button and the detection start button.

[0039] Figure 6 The system parameter setting screen consists of two parts: the first part is for communication parameter settings, including IP address and port; the second part is for variable action protection value settings, including voltage, current, air pressure, humidity action base values, upper and lower ranges, and whether or not to activate.

[0040] Figure 7 This is the system's historical data query screen, which allows users to query and replay historical data on the voltage, current, air pressure, and air humidity of each spray gun.

[0041] like Figure 4 As shown, the control output module is connected to the PC-based control system and includes a first output terminal and a second output terminal. The first output terminal is connected to the stop control circuit of the gold spraying equipment, and the second output terminal is connected to a buzzer. When the PC-based control system detects an abnormality, it controls the gold spraying equipment to stop operating via the first output terminal and controls the buzzer to sound an alarm via the second output terminal.

[0042] Example 2 like Figure 8 and Figure 9 As shown, this embodiment of the invention provides a dynamic data analysis method for gold plating of DC-supported capacitor elements, applied to the aforementioned quality control device for gold plating of DC-supported capacitor elements, comprising the following steps: S1. Set the operating baseline values, upper and lower ranges, and operating status of the voltage, current, air pressure, and air humidity of each spray gun.

[0043] Specifically, open the system software and enter the main screen as follows: Figure 5 As shown, click the parameter settings button in the lower left corner to enter the parameter settings screen. Figure 6As shown. First, set the communication parameters, namely the IP address and port; then set the alarm parameters, namely the base values, upper and lower ranges, and activation / deactivation status for each alarm unit's voltage, current, air pressure, and humidity. After setting the parameters, return to the main screen and click the "Start Monitoring" button at the bottom. The system will then begin real-time monitoring of each parameter.

[0044] S2. Real-time detection of the working status signals of each spray gun.

[0045] Turn on the gold spraying equipment and start running. The system will monitor the working status of each gun in real time, namely S1, S2, S3, and S4.

[0046] S3. When the working status signal of any spray gun is detected to be ON, the voltage, current, air pressure and air humidity parameters of the spray gun are collected at a preset frequency, and the collected parameters are stored in the database.

[0047] Specifically, once any signal is detected to be in the ON state, the voltage, current, air pressure, and humidity data of the corresponding spray gun will be displayed as waveforms in real time and stored in the database. In this embodiment, the preset frequency is 1 time / second.

[0048] Preferably, after detecting that the working status signal of the spray gun is ON, a preset time (e.g., 1 second) is delayed before data analysis begins to avoid errors caused by unstable parameters in the initial stage.

[0049] S4. Perform dynamic analysis on the collected parameters and calculate the maximum, minimum and mean values ​​of each parameter.

[0050] The following explanation uses the air pressure of the first gun as an example. When the system detects that the signal S1 of the first gun is ON, the gold spraying of the first gun begins. The system immediately collects the voltage, current, air pressure, and humidity data of the first gun, displays the waveform in real time, and stores it in the database.

[0051] Simultaneously, real-time dynamic data analysis also commenced. Before formal data processing, some preparatory work was required, such as establishing initial variables and functions: initial air pressure Q1=0; set List=null; set length n=0; maximum value Q max =0; Minimum value Q min =0; mean Q avg =0; 1 Gun air pressure protection value Q 1S (Set the reading value for the parameter); Air pressure protection upper and lower range D 01 (Set the read value for the parameter); 1 gun protection status value Statu01 (set the read value for the parameter).

[0052] Every second, the system assigns the collected air pressure from one gun to Q1, then stores Q1 in a set List, and calculates Q. max=Max(List), Q min =Min(List).

[0053] To eliminate interference from communication anomalies or other external factors when calculating the mean, the average of the remaining data is calculated after removing the maximum and minimum values. When n ≥ 3, the specific calculation formula is: Q avg =(SUM(List)-Q max -Q min ) / (n-2); where Q avg Q is the mean, SUM(List) is the sum of all elements in the set, and Q is the sum of all elements in the set. max Q is the maximum value in the set. min Let n be the minimum value in the set, and n be the length of the set.

[0054] S5. Determine whether the average value exceeds the threshold range based on the action base value and the upper and lower ranges. If it does, output an alarm signal and control the gold spraying equipment to stop running.

[0055] The condition for determining whether the mean exceeds the threshold range is: when the action status is enabled (Statu01==1), and the mean is less than or equal to the action base value minus the action base value multiplied by the following range percentage (Q). avg ≤Q 1S -Q 1S ×D 01 %), or the mean is greater than or equal to the action base value plus the action base value multiplied by the above range percentage (Q). avg ≥Q 1S +Q 1S ×D 01 When the value is less than 0.5%, it is considered to be outside the threshold range, i.e., an abnormality has occurred.

[0056] When an anomaly is detected, the gold spraying machine stops, and the program writes the current time, alarm variables (such as air pressure 1), and alarm value Q1 into the alarm data list, which is then displayed on the main interface. When S1 turns OFF, the task automatically terminates, the gold spraying machine stops working, and the buzzer outputs an alarm.

[0057] S6. When the working status signal of the spray gun changes to OFF, return to step S2 to continue detection until the gold spraying is completed.

[0058] If no abnormalities occur, the system will continuously monitor the gold spraying signal and then proceed to the data analysis and processing flow until the gold spraying is completed, at which point it will exit the quality inspection system. The analysis of voltage, current, and humidity is similar to that of air pressure, and the analysis approach for each parameter of the four guns is also consistent.

[0059] Furthermore, after an alarm signal is output, the operator can determine the alarm information (such as...) Figure 5 As shown in the bottom right corner), view historical data records (such as...). Figure 7 (As shown), determine whether the data loss is caused by a communication error or equipment malfunction. If it is an equipment malfunction, repair the equipment until the fault is resolved. After the fault is resolved, click the reset button to perform a reset operation and restart the gold spraying equipment.

[0060] like Figure 9 As shown, this system requires processing a large amount of information data in real time, therefore a multi-task architecture is adopted. In addition to the main task (including user interaction), multiple sub-tasks are performed simultaneously, including data acquisition, data display and storage, historical data viewing, and data analysis. The data analysis task further includes sub-tasks analyzing the voltage, current, air pressure, and air humidity of each spray gun. This multi-task architecture enables the simultaneous processing of multiple tasks, improving the system's real-time performance and responsiveness.

[0061] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0062] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0063] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0064] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit its scope of protection. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that after reading the present invention, they can still make various changes, modifications or equivalent substitutions to the specific implementation of the invention, but these changes, modifications or equivalent substitutions are all within the scope of protection of the pending claims of the invention.

[0066] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

Claims

1. A direct current supporting capacitor element metallization quality control device, characterized in that: a sensor group is arranged on each spray gun circuit of a metallization equipment to collect voltage, current, air pressure and air humidity parameters of each spray gun; a spray gun state detection module is used to collect working state signals of each spray gun; a data collection module is used to receive the voltage, current, air pressure and air humidity parameters and the working state signals; a PC terminal control system is used to perform dynamic analysis on the voltage, current, air pressure and air humidity parameters when detecting that the working state signal of any spray gun is in an ON state, and to judge whether it is abnormal according to a preset threshold range; and a control output module is used to control the metallization equipment to stop running when the PC terminal control system judges that it is abnormal. The sensor group comprises voltage sensors, current sensors, air pressure sensors and air humidity sensors, each of which has a field data display function and / or an analog signal output function. The spray gun state detection module acquires the working state signals by leading out the free normally open contact signal of the metallization control output intermediate relay of the metallization equipment. The metallization equipment is a multi-gun metallization equipment, and an independent sensor group is arranged on each spray gun circuit. The PC terminal control system comprises: a parameter setting module for setting communication parameters and action base values, upper and lower ranges and whether to act of voltage, current, air pressure and air humidity of each spray gun; 2. A DC support capacitor element plating quality control device according to claim 1, characterized by a real-time display module for displaying instantaneous values and real-time waveform diagrams of voltage, current, air pressure and air humidity of each spray gun; 3. A DC support capacitor element plating quality control device according to claim 1, wherein a dynamic analysis module for performing dynamic analysis on voltage, current, air pressure and air humidity of each spray gun, and calculating maximum value, minimum value and average value; 4. The apparatus for controlling the quality of plating of a DC support capacitor element according to claim 1, wherein an alarm recording module for recording and displaying alarm time, alarm variable and alarm value; 5. The apparatus for controlling the quality of plating of a DC support capacitor element according to claim 1, wherein a historical data query module for querying and playing back historical data of voltage, current, air pressure and air humidity of each spray gun. The method comprises: collecting voltage, current, air pressure and air humidity parameters of each spray gun in the metallization equipment, and working state signals of each spray gun; when detecting that the working state signal of any spray gun is in an ON state, collecting voltage, current, air pressure and air humidity parameters of the spray gun at a preset frequency, and storing the collected parameters into a database to perform dynamic analysis on the voltage, current, air pressure and air humidity parameters, and calculating maximum value, minimum value and average value of each parameter; judging whether the average value exceeds a threshold range according to the action base value and the upper and lower ranges; and controlling the metallization equipment to stop running when judging that it is abnormal.

6. A method of dynamic data analysis for plating of DC support capacitor elements, characterized by, 7. The direct current supporting capacitor element metallization dynamic data analysis method according to claim 6, characterized in that: when calculating the average value, the average value of the remaining data after removing the maximum value and the minimum value is calculated, and the specific calculation formula is: the condition for judging whether the average value exceeds the threshold range is: when the whether to act state is enabled, and the average value is less than or equal to the action base value minus the action base value multiplied by the lower range percentage, or the average value is greater than or equal to the action base value plus the action base value multiplied by the upper range percentage, it is determined that the threshold range is exceeded. ​ ​ ​ Q avg = (SUM(List) - Q max -Q min ) / (n-2); where Q avg is the mean, SUM(List) is the sum of the elements in the set, Q max is the maximum value in the set, Q min is the minimum value in the set, and n is the length of the set, with n > 3.

8. The direct current support capacitor element plating dynamic data analysis method of claim 6, wherein, ​ ​ 9. The direct current support capacitor element plating dynamic data analysis method of claim 6, wherein, After detecting that the working state signal of the spray gun is in the ON state, the data analysis is started after a preset time delay to avoid errors caused by unstable parameters in the initial stage.

10. The direct current support capacitor element plating dynamic data analysis method of claim 6, wherein, Also includes: After outputting the alarm signal, the historical data of the corresponding parameters is checked according to the alarm information to determine whether the data loss or equipment failure is caused by communication abnormality; If it is equipment failure, the equipment is repaired until the failure is eliminated; After the failure is eliminated, a reset operation is performed to make the spray gold equipment run again.

11. The direct current support capacitor element plating dynamic data analysis method of claim 6, wherein, The method is implemented by using a multi-task architecture, including a main task and multiple sub-tasks, the main task is used for user interactive operation, the sub-tasks include a data acquisition task, a data display and storage task, a historical data viewing task and a data analysis task, the data analysis task further includes data analysis sub-tasks of voltage, current, air pressure and air humidity of each spray gun.

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