Portable transformer substation current simulation drawing board and use method thereof

Abstract

The invention discloses a portable transformer substation current simulation drawing board and a using method thereof.The drawing board comprises a modular core control board, a touch ink screen, a physical key module, a data transmission module, a data interface module and a power module, and the core control board is connected with the ink screen through a data bus; the physical key module is connected with the core control board through GPIO, the data transmission module is connected with the core control board through a standard communication interface, the data interface module is connected with a USB data port, and the core control board comprises a main control chip, a data recording module and a function module. The data recording module is used for recording acceptance information, transformation ratio polarity test data and current transformer insulation conditions, and the function module comprises a checking function module, a current transformer winding number module, a P1 end position module and a current secondary winding positive and negative connection setting module and supports report export. According to the method, the acceptance form with individuation, high pertinence and sufficient granularity can be provided, and the acceptance efficiency and quality are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of power system monitoring, and in particular relates to a portable substation current simulation chart board and a use method thereof. Background Art

[0002] In the current power industry, incidents of protection devices failing to operate correctly due to abnormal current loops occur frequently. One of the root causes of such incidents is the inadequacy of the inspection links during the acceptance and operation and maintenance stages. Although most companies use localized acceptance forms to record equipment acceptance, the existing acceptance forms have significant limitations in design and implementation, resulting in low efficiency in on-site use and even affecting the authenticity and reliability of the acceptance results.

[0003] At present, many acceptance forms lack flexible and personalized design. The content of the forms is often universal and fixed, which makes it difficult to adapt to the unique needs of various substations and different current loops. For example, the system complexity and acceptance standards of 10kV substations and 220kV booster stations are different, but the forms are not differentiated enough in specific projects, which leads to insufficient adaptability of the forms in different scenarios and the inability to fully cover different equipment states and loop conditions during the acceptance process.

[0004] The lack of pertinence of the acceptance form is mainly reflected in the inability to selectively detect and record according to different equipment types and work scenarios. The existing form design lacks a detailed description of the key parameters of the current loop (such as the number of windings, polarity identification, insulation status, etc. of different types of current transformers). In actual operation, it is not convenient for field engineers to verify the equipment in a targeted manner, which may cause key items to be ignored or not effectively recorded, increasing the potential risk of protection failure during the operation and maintenance stage.

[0005] The inspection items in many acceptance forms are not granular enough, that is, the content of the form is relatively rough and fails to cover specific inspection details. For example, the inspection of the number of windings of the current transformer, the identification of the P1 terminal position, the positive and reverse connection of the secondary winding and other detailed items are not clearly presented in the form. Since the form design lacks detailed inspection requirements, it is difficult for engineers to follow the standard process during on-site acceptance, which is prone to incomplete records or omissions in inspections, affecting the integrity and accuracy of the acceptance results.

[0006] During the acceptance process, filling out forms often becomes a formal task. Especially when the forms are complicated and contain a lot of content, engineers may fill out false data in order to cope with the task, which fails to truly reflect the status of the equipment. This not only deviates from the original intention of the acceptance form to help record and monitor the status of the equipment, but may also cause equipment failures after being put into operation and cannot be detected and corrected in time, directly threatening the safe and stable operation of the system.

[0007] The management and use of acceptance forms in many companies lacks a systematic and standardized process. There are multiple form formats and requirements in different departments or regions, and there is a lack of unified acceptance standards and management specifications. This phenomenon can easily lead to information islands, making it difficult to effectively share and analyze acceptance data across the company, further weakening the management efficiency of the form.

[0008] Therefore, there is an urgent need to improve the design and management of acceptance forms, and enhance their personalization, pertinence and meticulousness to ensure the scientific nature of the acceptance work and the authenticity of the data. Summary of the invention

[0009] The technical problem to be solved by the present invention is to provide a portable substation current simulation chart board and a method of using the same which can enhance personalization, pertinence and meticulousness and ensure the scientific nature of acceptance work and the authenticity of data.

[0010] The technical solution of the present invention is: a portable substation current simulation chart board, including: a modular core control board, an ink screen, a physical key module, a data transmission module, a data interface module and a power module, the modular core control board is connected to the ink screen through a data bus, the physical key module is connected to the modular core control board through a GPIO port, the data transmission module is connected to the modular core control board through a standard communication interface, the Type-C interface of the data interface module is connected to the USB data port of the modular core control board, the power module is respectively connected to the modular core control board, the ink screen and the data transmission module, the modular core control board includes: a main control chip, a data recording module and a functional module, the main The control chip is connected to the data recording module and the functional module respectively, and the data recording module is connected to the functional module. The data recording module includes: an acceptance information recording module, a transformation ratio polarity test data module and a current transformer insulation condition recording module. The functional module includes: a check function module, a current transformer winding number function module, a P1 terminal position function module, a current secondary winding positive and reverse connection function module, a current flow correctness test module and a report export module. The check function module is connected to the ink screen and the physical button module respectively, and the report export module is connected to the detection data of the current transformer winding number function module, the P1 terminal position function module, the current secondary winding positive and reverse connection function module and the current flow correctness test module respectively through the main control chip.

[0011] Furthermore, the main control chip has a built-in modular programming environment that supports Java, C++, and Python programming languages.

[0012] Furthermore, the ink screen is a touch ink screen, and the ink screen is connected to an external device via a Type-C interface.

[0013] Furthermore, the physical button module includes a plurality of custom physical buttons.

[0014] Furthermore, the data transmission module includes: a Bluetooth transmission module and a WiFi module, the Bluetooth transmission module is connected to the main control chip through a serial communication protocol, and the WiFi module is connected to the main control chip through a UART, SPI or I2C standard communication interface.

[0015] Furthermore, the power module includes: a large-capacity lithium battery and a power management chip, the large-capacity lithium battery is connected to the input end of the power management chip, the capacity of the large-capacity lithium battery is not less than 5000mAh, and the output end of the power management chip is respectively connected to the modular core control board, the ink screen and the data transmission module.

[0016] Furthermore, the data recording module also includes a data storage unit, which is respectively connected to the acceptance information recording module, the ratio polarity test data module and the current transformer insulation condition recording module, and the data storage unit is also connected to the report export module.

[0017] Furthermore, the report export module includes a file format conversion unit.

[0018] A method for using a portable substation current simulation board comprises the following steps:

[0019] Step 1: Charging and turning on the device, including the following steps:

[0020] S1. Charging: Use a Type-C data cable to connect the current simulation board to a power adapter or computer to ensure that the device battery is fully charged;

[0021] S2. Power on: Press and hold the power button on the side of the device until the screen lights up, wait for the device to load and enter the main interface. After this process is completed, you can start custom configuration and operation;

[0022] Step 2: Customize settings and input information, including the following steps:

[0023] S3. Enter the settings menu: Find the "Settings" menu on the main interface and click to enter. Select the applicable substation or booster station type according to actual specific usage requirements;

[0024] S4. Adjust parameters: Enter the parameter setting page, select the standard that meets the acceptance requirements, and set the relevant parameters of the equipment to match the specific application scenario according to the acceptance requirements; including: input the required number of windings, select the location of the P1 terminal connection point and the positive and negative connection configuration of the current secondary winding;

[0025] S5. Information input: In the personalized configuration interface, enter the substation name, acceptance date, acceptance personnel name, and equipment name or number;

[0026] Step 3: Select the function module and set the parameters, including the following steps:

[0027] S6. Check function modules: During the acceptance process, the progress and configuration of each acceptance are recorded through the check boxes on the screen;

[0028] S7, set parameters: according to the acceptance requirements, set the key parameters, including: input the number of current transformer windings, select the P1 terminal position connection point, the positive and negative connection of the current secondary winding: check and set the direction of the current secondary winding;

[0029] Step 4: Test data input and recording, including the following steps:

[0030] S8. Input test data: During the test, record the ratio polarity test data and the insulation condition of the current transformer, input the correctness data of the primary and secondary current flow, and ensure the accuracy of all information;

[0031] S9. Data input method: directly input data through the touch screen, or select preset options on the interface;

[0032] S10. Save records: After all data records are completed, the user chooses to save the acceptance report in Word or PDF format. When saving the file, ensure that the file name is clear, including the substation name and acceptance date;

[0033] Step 5: Data management and export, including the following steps:

[0034] S11. Connect to computer: Use Type-C data cable to connect the current simulation board to the computer;

[0035] S12. Data export: After successful connection, follow the device prompts to export data. During the data transmission process, ensure data integrity and accuracy;

[0036] S13, subsequent data processing: after data transmission is completed, the user further analyzes or archives the data on the computer;

[0037] Step 6: Maintenance and troubleshooting, including the following steps:

[0038] S14. Equipment maintenance: Regularly check the battery status of the device and ensure that the charging port and data cable are not damaged;

[0039] S15. Troubleshooting: If the device does not start or respond properly, first check the battery level and charging status, restart the device, or read the troubleshooting section in the user manual for detailed solutions;

[0040] Step 7, safety precautions, including the following steps:

[0041] S16. Environmental protection: During use, ensure that the device is away from humid environments and strong magnetic fields;

[0042] S17. Safe operation: Strictly follow electrical safety regulations and wear appropriate protective equipment during operation.

[0043] Furthermore, step S4 also includes data preprocessing, which includes: denoising, normalization, smoothing and parameter adjustment. The denoising includes: sliding average and median filtering. The smoothing includes: simple moving average, exponential weighted smoothing and Gaussian smoothing. The parameter adjustment is specifically: adjusting the window size and smoothing coefficient parameters according to the acceptance requirements and data characteristics. The expression of the sliding average is:

[0044]

[0045] Among them, y i represents the smoothed data point, x j represents the original data point, k represents the window radius, and i represents the index position of the current data point;

[0046] The expression of the median filter is:

[0047] y i =median(x i-k , x i-k+1 , …, x i+k ),

[0048] Among them, y i represents the filtered data point, x i-k , x i-k+1 , …, x i+k represents the original data point within the window range, k represents the window radius, and i represents the index position of the current data point;

[0049] The expression of the normalization process is:

[0050]

[0051] Among them, x′ represents the normalized data, x represents the original data, and x max Represents the maximum value in the data set, x min Represents the minimum value in the data set;

[0052] The expression of the simple moving average is:

[0053]

[0054] Among them, y i represents the smoothed data point, x j represents the original data point, k represents the window radius, i represents the index position of the current data point, and N represents the window size;

[0055] The expression of the exponential weighted smoothing is:

[0056] y i =αx i +(1-α)y i-1 ,

[0057] Among them, y i Represents the current smoothed data point, x i represents the current original data point, α represents the smoothing coefficient, and y i-1 Represents the last smoothed data point;

[0058] The expression of Gaussian smoothing is:

[0059]

[0060] Among them, y i Represents the current smoothed data point, x j represents the original data point, σ represents the standard deviation, and k represents the window radius.

[0061] Beneficial effects of the present invention:

[0062] 1. Functional modular design enhances device flexibility and adaptability: The present invention adopts a modular core control board, integrates a data recording module and a variety of functional modules, supports personalized settings, and can adapt to different types of substations or booster stations through modular design, meeting the acceptance requirements of different current loops, and enhancing the wide range of application;

[0063] 2. Diversified data input and processing methods to improve data collection accuracy: The present invention supports multi-mode data input of touch ink screen and physical buttons, which is convenient for fast and convenient selection and recording of parameters during the acceptance process. In particular, through data preprocessing (denoising, normalization and smoothing, etc.), noise in the measured data is effectively removed, the accuracy and stability of the data are improved, and a reliable foundation is laid for subsequent data analysis and report generation;

[0064] 3. Built-in programming environment to improve system scalability: The main control chip supports programming environments such as Java, C++ and Python, which is convenient for customization and expansion of functions. Users can write or load specific algorithms and applications according to their needs, so that the device can flexibly respond to different application scenarios;

[0065] 4. Convenient wireless data transmission and improved data management efficiency: The data transmission module includes Bluetooth and Wi-Fi, which supports wireless communication with external devices to achieve efficient data transmission and sharing. Users can remotely view, analyze and manage acceptance data, simplifying the data archiving and report generation process and improving acceptance and data management efficiency;

[0066] 5. Customized physical buttons and touch screen design to improve operational convenience: The present invention supports customized physical buttons, combined with touch ink screen operation, to achieve more intuitive and quick parameter settings and function selection, effectively reducing the complexity of operation and improving user experience;

[0067] 6. Automatic report export to simplify data archiving process: Through the report export module, the device can generate an acceptance report in Word or PDF format, and the file name automatically includes the substation name and acceptance date.

[0068] It is convenient for subsequent archiving and review, reducing human operation errors;

[0069] In summary, the portable substation current simulation board and its use method of the present invention improve the efficiency of equipment use, the accuracy and safety of data collection, and simplify the data recording and management process in the acceptance process, improve the personalization, pertinence and granularity of the acceptance form, thereby improving the acceptance efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 The present invention is a schematic diagram of the module structure of a portable substation current simulation board.

[0071] Figure 2 The present invention provides a method for using a portable substation current simulation board. DETAILED DESCRIPTION

[0072] like Figure 1-2As shown, a portable substation current simulation chart board includes: a modular core control board, an ink screen, a physical key module, a data transmission module, a data interface module and a power module. The modular core control board is connected to the ink screen through a data bus, the physical key module is connected to the modular core control board through a GPIO port, the data transmission module is connected to the modular core control board through a standard communication interface, the Type-C interface of the data interface module is connected to the USB data port of the modular core control board, the power module is respectively connected to the modular core control board, the ink screen and the data transmission module, the modular core control board includes: a main control chip, a data recording module and a functional module, the main control chip The chips are respectively connected to the data recording module and the functional module, the data recording module is connected to the functional module, the data recording module includes: an acceptance information recording module, a transformation ratio polarity test data module and a current transformer insulation condition recording module, the functional module includes: a check function module, a current transformer winding number function module, a P1 terminal position function module, a current secondary winding positive and reverse connection function module, a current flow correctness test module and a report export module, the check function module is respectively connected to the ink screen and the physical button module, and the report export module is respectively connected to the detection data of the current transformer winding number function module, the P1 terminal position function module, the current secondary winding positive and reverse connection function module and the current flow correctness test module through the main control chip.

[0073] Preferably, the main control chip has a built-in modular programming environment that supports Java, C++, and Python programming languages.

[0074] Preferably, the ink screen is a touch ink screen, and the ink screen is connected to an external device via a Type-C interface.

[0075] Preferably, the physical button module includes a plurality of custom physical buttons.

[0076] Preferably, the data transmission module includes: a Bluetooth transmission module and a WiFi module, the Bluetooth transmission module is connected to the main control chip via a serial communication protocol, and the WiFi module is connected to the main control chip via a UART, SPI or I2C standard communication interface.

[0077] Preferably, the power module includes: a large-capacity lithium battery and a power management chip, the large-capacity lithium battery is connected to the input end of the power management chip, the capacity of the large-capacity lithium battery is not less than 5000mAh, and the output end of the power management chip is respectively connected to the modular core control board, the ink screen and the data transmission module.

[0078] Preferably, the data recording module also includes a data storage unit, which is respectively connected to the acceptance information recording module, the transformation ratio polarity test data module and the current transformer insulation condition recording module, and the data storage unit is also connected to the report export module.

[0079] Preferably, the report export module includes a file format conversion unit.

[0080] A method for using a portable substation current simulation board comprises the following steps:

[0081] Step 1: Charging and turning on the device, including the following steps:

[0082] S1. Charging: Use a Type-C data cable to connect the current simulation board to a power adapter or computer to ensure that the device battery is fully charged;

[0083] S2. Power on: Press and hold the power button on the side of the device until the screen lights up, wait for the device to load and enter the main interface. After this process is completed, you can start custom configuration and operation;

[0084] Step 2: Customize settings and input information, including the following steps:

[0085] S3. Enter the settings menu: Find the "Settings" menu on the main interface and click to enter. Select the applicable substation or booster station type according to actual specific usage requirements;

[0086] S4. Adjust parameters: Enter the parameter setting page, select the standard that meets the acceptance requirements, and set the relevant parameters of the equipment to match the specific application scenario according to the acceptance requirements; including: input the required number of windings, select the location of the P1 terminal connection point and the positive and negative connection configuration of the current secondary winding;

[0087] S5. Information input: In the personalized configuration interface, enter the substation name, acceptance date, acceptance personnel name, and equipment name or number;

[0088] Step 3: Select the function module and set the parameters, including the following steps:

[0089] S6. Check function modules: During the acceptance process, the progress and configuration of each acceptance are recorded through the check boxes on the screen;

[0090] S7, set parameters: according to the acceptance requirements, set the key parameters, including: input the number of current transformer windings, select the P1 terminal position connection point, the positive and negative connection of the current secondary winding: check and set the direction of the current secondary winding;

[0091] Step 4: Test data input and recording, including the following steps:

[0092] S8. Input test data: During the test, record the ratio polarity test data and the insulation condition of the current transformer, input the correctness data of the primary and secondary current flow, and ensure the accuracy of all information;

[0093] S9. Data input method: directly input data through the touch screen, or select preset options on the interface;

[0094] S10. Save records: After all data records are completed, the user chooses to save the acceptance report in Word or PDF format. When saving the file, ensure that the file name is clear, including the substation name and acceptance date;

[0095] Step 5: Data management and export, including the following steps:

[0096] S11. Connect to computer: Use Type-C data cable to connect the current simulation board to the computer;

[0097] S12. Data export: After successful connection, follow the device prompts to export data. During the data transmission process, ensure data integrity and accuracy;

[0098] S13, subsequent data processing: after data transmission is completed, the user further analyzes or archives the data on the computer;

[0099] Step 6: Maintenance and troubleshooting, including the following steps:

[0100] S14. Equipment maintenance: Regularly check the battery status of the device and ensure that the charging port and data cable are not damaged;

[0101] S15. Troubleshooting: If the device does not start or respond properly, first check the battery level and charging status, restart the device, or read the troubleshooting section in the user manual for detailed solutions;

[0102] Step 7, safety precautions, including the following steps:

[0103] S16. Environmental protection: During use, ensure that the device is away from humid environments and strong magnetic fields;

[0104] S17. Safe operation: Strictly follow electrical safety regulations and wear appropriate protective equipment during operation.

[0105] Preferably, step S4 further includes data preprocessing, which includes: denoising, normalization, smoothing and parameter adjustment. The denoising includes: sliding average and median filtering. The smoothing includes: simple moving average, exponential weighted smoothing and Gaussian smoothing. The parameter adjustment specifically includes: adjusting the window size and smoothing coefficient parameters according to the acceptance requirements and data characteristics. The expression of the sliding average is:

[0106]

[0107] Among them, y i represents the smoothed data point, x j represents the original data point, k represents the window radius, and i represents the index position of the current data point;

[0108] The expression of the median filter is:

[0109] y i =median(x i-k , x i-k+1 , …, x i+k ),

[0110] Among them, y i represents the filtered data point, x i-k , x i-k+1 , …, x i+k represents the original data point within the window range, k represents the window radius, and i represents the index position of the current data point;

[0111] The expression of the normalization process is:

[0112]

[0113] Among them, x′ represents the normalized data, x represents the original data, and x max Represents the maximum value in the data set, x min Represents the minimum value in the data set;

[0114] The expression of the simple moving average is:

[0115]

[0116] Among them, y i represents the smoothed data point, x j represents the original data point, k represents the window radius, i represents the index position of the current data point, and N represents the window size;

[0117] The expression of the exponential weighted smoothing is:

[0118] y i =αxi +(1-α)y i-1 ,

[0119] Among them, y i Represents the current smoothed data point, x i represents the current original data point, α represents the smoothing coefficient, and y i-1 Represents the last smoothed data point;

[0120] The expression of Gaussian smoothing is:

[0121]

[0122] Among them, y i Represents the current smoothed data point, x j represents the original data point, σ represents the standard deviation, and k represents the window radius.

[0123] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A portable substation current simulation board, characterized in that: include: A modular core control board, an ink screen, a physical key module, a data transmission module, a data interface module and a power module. The modular core control board is connected to the ink screen through a data bus, the physical key module is connected to the modular core control board through a GPIO port, the data transmission module is connected to the modular core control board through a standard communication interface, the Type-C interface of the data interface module is connected to the USB data port of the modular core control board, the power module is respectively connected to the modular core control board, the ink screen and the data transmission module, the modular core control board includes: a main control chip, a data recording module and a functional module, the main control chip is respectively connected to the data recording module and The function module is connected, the data recording module is connected with the function module, the data recording module includes: an acceptance information recording module, a transformation ratio polarity test data module and a current transformer insulation condition recording module, the function module includes: a check function module, a current transformer winding number function module, a P1 terminal position function module, a current secondary winding positive and reverse connection function module, a current flow correctness test module and a report export module, the check function module is respectively connected with the ink screen and the physical button module, and the report export module is respectively connected with the detection data of the current transformer winding number function module, the P1 terminal position function module, the current secondary winding positive and reverse connection function module and the current flow correctness test module through the main control chip.

2. A portable substation current simulation board according to claim 1, characterized in that: The main control chip has a built-in modular programming environment that supports Java, C++, and Python programming languages.

3. A portable substation current simulation board according to claim 1, characterized in that: The ink screen is a touch ink screen, and the ink screen is connected to an external device via a Type-C interface.

4. A portable substation current simulation board according to claim 1, characterized in that: The physical button module includes a plurality of customized physical buttons.

5. A portable substation current simulation board according to claim 1, characterized in that: The data transmission module includes: a Bluetooth transmission module and a WiFi module. The Bluetooth transmission module is connected to the main control chip through a serial communication protocol, and the WiFi module is connected to the main control chip through a UART, SPI or I2C standard communication interface.

6. A portable substation current simulation board according to claim 1, characterized in that: The power module includes: a large-capacity lithium battery and a power management chip. The large-capacity lithium battery is connected to the input end of the power management chip. The capacity of the large-capacity lithium battery is not less than 5000mAh. The output end of the power management chip is respectively connected to the modular core control board, the ink screen and the data transmission module.

7. A portable substation current simulation board according to claim 1, characterized in that: The data recording module also includes a data storage unit, which is respectively connected to the acceptance information recording module, the ratio polarity test data module and the current transformer insulation condition recording module, and is also connected to the report export module.

8. A portable substation current simulation board according to claim 1, characterized in that: The report export module includes a file format conversion unit.

9. A method for using the portable substation current simulation board according to claim 1, characterized in that: The following steps are involved: Step 1: Charging and turning on the device, including the following steps: S1. Charging: Use a Type-C data cable to connect the current simulation board to a power adapter or computer to ensure that the device battery is fully charged; S2. Power on: Press and hold the power button on the side of the device until the screen lights up, wait for the device to load and enter the main interface. After this process is completed, you can start custom configuration and operation; Step 2: Customize settings and input information, including the following steps: S3. Enter the settings menu: Find the "Settings" menu on the main interface and click to enter. Select the appropriate substation or booster station type according to actual specific usage requirements; S4. Adjust parameters: Enter the parameter setting page, select the standard that meets the acceptance requirements, and set the relevant parameters of the equipment to match the specific application scenario according to the acceptance requirements; including: input the required number of windings, select the location of the P1 terminal connection point and the positive and negative connection configuration of the current secondary winding; S5. Information input: In the personalized configuration interface, enter the substation name, acceptance date, acceptance personnel name, and equipment name or number; Step 3: Function module selection and parameter setting, including the following steps: S6. Check function modules: During the acceptance process, the progress and configuration of each acceptance are recorded through the check boxes on the screen; S7, set parameters: according to the acceptance requirements, set the key parameters, including: input the number of current transformer windings, select the P1 terminal position connection point, the positive and negative connection of the current secondary winding: check and set the direction of the current secondary winding; Step 4: Test data input and recording, including the following steps: S8. Input test data: During the test, record the ratio polarity test data and the insulation condition of the current transformer, input the correctness data of the primary and secondary current flow, and ensure the accuracy of all information; S9. Data input method: directly input data through the touch screen, or select preset options on the interface; S10. Save records: After all data records are completed, the user chooses to save the acceptance report in Word or PDF format. When saving the file, ensure that the file name is clear, including the substation name and acceptance date; Step 5: Data management and export, including the following steps: S11. Connect to computer: Use Type-C data cable to connect the current simulation board to the computer; S12. Data export: After successful connection, follow the device prompts to export data. During the data transmission process, ensure data integrity and accuracy; S13, subsequent data processing: after data transmission is completed, the user further analyzes or archives the data on the computer; Step 6: Maintenance and troubleshooting, including the following steps: S14. Equipment maintenance: Regularly check the battery status of the device and ensure that the charging port and data cable are not damaged; S15. Troubleshooting: If the device does not start or respond properly, first check the battery level and charging status, restart the device, or read the troubleshooting section in the user manual for detailed solutions; Step 7, safety precautions, including the following steps: S16. Environmental protection: During use, ensure that the device is away from humid environments and strong magnetic fields; S17. Safe operation: Strictly follow electrical safety regulations and wear appropriate protective equipment during operation.

10. The method for using a portable substation current simulation board according to claim 9, characterized in that: The step S4 also includes data preprocessing, which includes: denoising, normalization, smoothing and parameter adjustment. The denoising includes: sliding average and median filtering. The smoothing includes: simple moving average, exponential weighted smoothing and Gaussian smoothing. The parameter adjustment is specifically: adjusting the window size and smoothing coefficient parameters according to the acceptance requirements and data characteristics. The expression of the sliding average is: Among them, y i represents the smoothed data point, x j represents the original data point, k represents the window radius, and i represents the index position of the current data point; The expression of the median filter is: y i =median(x i-k ,x i-k+1 ,...,x i+k ), Among them, y i represents the filtered data point, x i-k , x i-k+1 , ..., x i+k represents the original data point within the window range, k represents the window radius, and i represents the index position of the current data point; The expression of the normalization process is: Among them, x′ represents the normalized data, x represents the original data, and x max Represents the maximum value in the data set, x min Represents the minimum value in the data set; The expression of the simple moving average is: Among them, yi represents the smoothed data point, x j represents the original data point, k represents the window radius, i represents the index position of the current data point, and N represents the window size; The expression of the exponential weighted smoothing is: y i =αx i +(1-α)y i-1 , Among them, y i Represents the current smoothed data point, x i represents the current original data point, α represents the smoothing coefficient, and y i-1 Represents the last smoothed data point; The expression of Gaussian smoothing is: Among them, yi represents the current smoothed data point, x j represents the original data point, σ represents the standard deviation, and k represents the window radius.

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