Three-phase guideway surface data acquisition and analysis method and device

Abstract

This application discloses a method and apparatus for data acquisition and analysis of three-phase rail-mounted energy meters, relating to the field of data acquisition and processing of three-phase rail-mounted energy meters. The method includes the following steps: in response to the communication signal of the three-phase rail-mounted energy meter, acquiring the output electrical parameters of the three-phase rail-mounted energy meter; acquiring verification electrical parameters based on the historical data deviation fluctuation relationship of the three-phase rail-mounted energy meter and the output electrical parameters; and outputting the verification result of the three-phase rail-mounted energy meter based on the verification electrical parameters and the comparison result between the output electrical parameters and a preset deviation threshold. The beneficial effects of this application are: rapid and accurate acquisition of current circuit data and determination of whether there are any abnormalities in the current three-phase rail-mounted energy meter, improving efficiency and analysis accuracy.

Description

Technical Field

[0001] This application relates to the field of data acquisition and data processing for three-phase rail-mounted energy meters, and particularly to methods and devices for data acquisition and analysis of three-phase rail-mounted energy meters. Background Technology

[0002] In the field of power metering, the accuracy of data acquisition and verification of three-phase rail meters directly affects the operation monitoring, electricity billing, and energy consumption analysis of power systems. Traditional data acquisition and analysis methods mainly rely on single threshold verification. However, the metering accuracy of three-phase rail meters is affected by environmental interference or equipment aging, which can easily lead to misjudgments or omissions under complex operating conditions, making it difficult to meet the requirements of high precision.

[0003] In related technologies, the circuit is judged to be abnormal only by the output parameters of the three-phase rail meter, while ignoring the metering error of the three-phase rail meter. When the three-phase rail meter experiences sensor drift, transformer aging, or metering chip performance degradation due to long-term operation, its output parameters may still meet the preset threshold range, but the actual metering error has exceeded the allowable range, affecting the fairness of electricity billing and the accuracy of energy consumption analysis.

[0004] Furthermore, since the three-phase rail-mounted energy meter is installed at the metering box, it is difficult to obtain the collected data directly from the three-phase rail-mounted energy meter in practical applications. The data in the three-phase rail-mounted energy meter can only be uploaded through the main station collection method, and operators cannot obtain the collected information in a timely manner.

[0005] The patent "A Rail-Mounted Energy Meter with Display Function," publication number CN120009586A, published on May 16, 2025, specifically discloses a meter comprising a housing and a rail. The housing includes a shell and a cover plate, and further includes a main module disposed within the shell for mounting electrical components. This rail-mounted energy meter with display function can measure and record user electricity consumption information, displaying the electricity consumption data in real time on a screen. It can also communicate with other devices via a CAN communication module and an IoT communication module. However, this solution still requires operators to physically inspect the data collected by the rail-mounted energy meter, resulting in low efficiency, and operators must manually determine the accuracy of the collected data. Summary of the Invention

[0006] This application addresses the problems of low efficiency and poor accuracy in data acquisition and analysis of rail-mounted energy meters, which rely on manual labor. It provides a method and apparatus for data acquisition and analysis of three-phase rail-mounted energy meters. The apparatus remotely acquires data from the three-phase rail-mounted energy meters and verifies the acquired data based on historical data deviation and fluctuation relationships. This allows for rapid and accurate acquisition of current circuit data and determination of any anomalies in the three-phase rail-mounted energy meters without requiring operators to physically reach the meters, thus improving efficiency and analytical accuracy.

[0007] To achieve the above technical objectives, this application provides a technical solution: a three-phase rail gauge data acquisition and analysis method, comprising the following steps: responding to the communication signal of the three-phase rail gauge, acquiring the output electrical parameters of the three-phase rail gauge; acquiring verification electrical parameters based on the historical data deviation fluctuation relationship of the three-phase rail gauge and the output electrical parameters of the three-phase rail gauge; and outputting the verification result of the three-phase rail gauge based on the verification electrical parameters and the comparison result between the output electrical parameters and a preset deviation threshold.

[0008] Furthermore, the method of obtaining verification electrical parameters based on the historical data deviation fluctuation relationship of the three-phase rail meter and the output electrical parameters of the three-phase rail meter also includes: constructing the historical data deviation fluctuation relationship of the three-phase rail meter corresponding to the environmental dimension and the load dimension based on historical environmental data, historical load data, historical full life cycle operation data of the three-phase rail meter, and historical verification data of the three-phase rail meter; and obtaining verification electrical parameters based on the historical data deviation fluctuation relationship of the three-phase rail meter according to the current environmental data, current load data, and the output electrical parameters of the three-phase rail meter.

[0009] Furthermore, the step of outputting the three-phase rail meter verification result based on the comparison results of the verification electrical parameters and the output electrical parameters with the preset deviation threshold includes: obtaining the actual deviation value based on the verification electrical parameters and the output electrical parameters; if the actual deviation value is less than or equal to the preset deviation threshold, the three-phase rail meter verification result is normal; if the actual deviation value is greater than the preset deviation threshold, the three-phase rail meter verification result is abnormal.

[0010] Furthermore, it also includes: outputting the verification result of the collected data based on the verification electrical parameters and the comparison result of the output electrical parameters with the preset abnormal threshold.

[0011] Furthermore, it also includes: if the data collection verification result is abnormal and the three-phase rail meter verification result is abnormal, then a three-phase rail meter abnormality is indicated; if the data collection verification result is abnormal but the three-phase rail meter verification result is normal, then a circuit abnormality is indicated; if the data collection verification result is normal but the three-phase rail meter verification result is abnormal, then a three-phase rail meter abnormality is indicated.

[0012] Another technical solution provided in this application is a three-phase rail gauge data acquisition and analysis device for implementing the above method, comprising: a communication unit for communicating with the three-phase rail gauge and acquiring the output electrical parameters acquired by the three-phase rail gauge; a control unit for acquiring verification electrical parameters based on the historical data deviation fluctuation relationship of the three-phase rail gauge and the output electrical parameters of the three-phase rail gauge, and outputting the verification result of the three-phase rail gauge based on the verification electrical parameters and the comparison result of the output electrical parameters with a preset deviation threshold; and a display unit for displaying the verification electrical parameters, the output electrical parameters, and the verification result of the three-phase rail gauge.

[0013] Furthermore, it also includes: a button unit, connected to the control unit, and the control unit responding to the button unit's action by outputting corresponding electrical parameter information.

[0014] Furthermore, it also includes: an RTC circuit for recording the timing information of the output electrical parameters of the three-phase rail meter; and a power supply unit for providing the power required by the device.

[0015] Furthermore, the power supply unit includes at least a battery section and a conversion section. The battery section is used to install a rechargeable battery, and the conversion section includes at least a power conversion circuit for converting the input power into DC voltage. The battery section is connected to the conversion section, and the conversion section is connected to the control unit and the communication unit.

[0016] Furthermore, it also includes a storage unit, connected to the control unit, for storing historical data of the three-phase rail gauge.

[0017] The beneficial effects of this application are as follows: 1. Dynamic verification data is constructed by using the historical data deviation and fluctuation relationship of the three-phase rail gauge, so that the verification electrical parameters are more in line with the actual operating characteristics. At the same time, by comparing the output electrical parameters of the three-phase rail gauge with the verification electrical parameters, the metering abnormality of the three-phase rail gauge can be quickly identified, realizing real-time early warning of three-phase rail gauge faults. The verification electrical parameters and output electrical parameters are provided for operators to refer to, so that operators can more intuitively discover electrical parameter abnormalities.

[0018] 2. By acquiring historical environmental data, historical load data, historical full life cycle operation data of three-phase rail gauges, and historical calibration data of three-phase rail gauges, we obtain weights for temperature, humidity, electromagnetic interference, load balance, load harmonic content, and load power fluctuation. This allows us to construct the deviation and fluctuation relationship of historical data of three-phase rail gauges. Multi-dimensional correlation analysis is then used to improve the accuracy of the output of calibration electrical parameters, making the calibration electrical parameters closer to the actual state of the equipment. Attached Figure Description

[0019] Figure 1 This is a flowchart illustrating the three-phase guide rail meter data acquisition and analysis method of this application.

[0020] Figure 2This is a schematic diagram of the three-phase guide rail meter data acquisition and analysis device of this application. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description of this application is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely one preferred embodiment of this application and are only used to explain this application. They do not limit the scope of protection of this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] like Figure 1 As shown in the first embodiment of this application, the three-phase rail gauge data acquisition and analysis method includes the following steps: in response to the communication signal of the three-phase rail gauge, the output electrical parameters of the three-phase rail gauge are acquired; based on the historical data deviation fluctuation relationship of the three-phase rail gauge and the output electrical parameters of the three-phase rail gauge, the verification electrical parameters are acquired; and the verification result of the three-phase rail gauge is output according to the verification electrical parameters and the comparison result of the output electrical parameters with the preset deviation threshold.

[0023] In this embodiment, dynamic verification data is constructed by using the historical data deviation and fluctuation relationship of the three-phase rail gauge, making the verification electrical parameters more consistent with the actual operating characteristics. At the same time, by comparing the output electrical parameters of the three-phase rail gauge with the verification electrical parameters, it is possible to quickly identify whether there is a metering abnormality in the three-phase rail gauge, realize real-time early warning of three-phase rail gauge faults, and provide verification electrical parameters and output electrical parameters for operators to refer to, so that operators can more intuitively discover electrical parameter abnormalities.

[0024] Specifically, the verification electrical parameters obtained based on the historical data deviation fluctuation relationship of the three-phase rail gauge and the output electrical parameters of the three-phase rail gauge also include: Based on historical environmental data, historical load data, historical full life cycle operation data of three-phase rail meters, and historical calibration data of three-phase rail meters, the deviation and fluctuation relationship of historical data of three-phase rail meters corresponding to the environmental dimension and the load dimension is constructed. Based on the current environmental data, current load data, and the output electrical parameters of the three-phase rail gauge, the calibration electrical parameters are obtained according to the deviation and fluctuation relationship of the historical data of the three-phase rail gauge.

[0025] Historical data for three-phase rail meters includes at least historical environmental data, historical load data, historical full-lifecycle operational data, and historical calibration data. Historical environmental data includes at least historical ambient temperature, humidity, and electromagnetic interference. Historical load data includes at least historical load balance, harmonic content, and power fluctuation. In some cases, the historical full-lifecycle operational data includes data collected from installation to disposal of similar three-phase rail meters at the same location. In other cases where similar three-phase rail meters are not installed at the same location, the historical full-lifecycle operational data includes data collected from installation to the current timeline of the current three-phase rail meter. Historical calibration data includes manual calibration records corresponding to the entire historical lifecycle of the three-phase rail meter.

[0026] Based on historical environmental data, historical load data, historical full lifecycle operation data of three-phase rail gauges, and historical calibration data of three-phase rail gauges, the historical data deviation and fluctuation relationship of three-phase rail gauges corresponding to the environmental and load dimensions is constructed as follows: Y=(ω1*T em +ω2*H um +ω3*E le +ω4*L bd +ω5*L THD +ω6*L pf )*X; ω1+ω2+ω3+ω4+ω5+ω6=1; Where Y represents the check value, ω1 represents the temperature weight, and T em ω2 represents the temperature value, ω2 represents the humidity weight, and H represents the humidity value. um The value represents humidity, ω3 represents electromagnetic interference weight, and E le Indicates the electromagnetic interference value, ω4 represents the load balance weight, and L bd Indicates load balance, ω5 represents the load harmonic content weight, L THD Indicates the load harmonic content, ω6 represents the load power fluctuation weight, and L pf This represents the load power fluctuation value, and X represents the value collected by the three-phase rail meter.

[0027] By acquiring historical environmental data, historical load data, historical full life cycle operation data of three-phase rail gauges, and historical calibration data of three-phase rail gauges, we obtain weights for temperature, humidity, electromagnetic interference, load balance, load harmonic content, and load power fluctuation. This allows us to construct the deviation and fluctuation relationship of historical data of three-phase rail gauges. Multi-dimensional correlation analysis is then used to improve the accuracy of the output of calibration electrical parameters, making the calibration electrical parameters closer to the actual state of the equipment.

[0028] In other cases, constructing the historical data deviation fluctuation relationship of three-phase rail gauges corresponding to the environmental and load dimensions based on historical environmental data, historical load data, historical full life cycle operation data of three-phase rail gauges, and historical calibration data of three-phase rail gauges also includes: Based on the operating sequence and the maintenance sequence of the three-phase guide rail meter, the historical data deviation fluctuation superposition relationship of the three-phase guide rail meter is obtained based on the aging and wear of the equipment. Based on the superposition relationship of deviation fluctuations in the historical data of the three-phase guide rail meter, the superimposed values ​​of the historical verification data of the three-phase guide rail meter under each time series are filtered out. Based on the historical calibration data, historical environmental data, historical load data, and historical full life cycle operation data of the three-phase rail gauges after screening, a deviation and fluctuation relationship of the historical data of the three-phase rail gauges corresponding to the environmental and load dimensions is constructed.

[0029] In this scenario, since wear and tear caused by equipment aging persists long-term without maintenance, the resulting deviations also persist. Therefore, the intermediate time sequence between two maintenance operations (or the intermediate time sequence from the initial operation of the equipment to the first dimension) is used as the calculation time sequence for the historical data deviation fluctuation superposition relationship of the three-phase guide rail meter. Equipment aging wear is usually related to equipment temperature and humidity; equipment is more prone to wear in high temperature and high humidity environments. The deviation caused by equipment aging wear is obtained based on the deviation values ​​under the same environmental factors before and after maintenance. The relationship between equipment aging wear and temperature and humidity is obtained based on the time sequence length caused by changes in temperature and humidity during a calculation time sequence. This allows the construction of the historical data deviation fluctuation superposition relationship of the three-phase guide rail meter. Thus, when constructing the historical data deviation fluctuation relationship of the three-phase guide rail meter, the deviation caused by equipment aging is eliminated, ensuring that the historical data deviation fluctuation relationship of the three-phase guide rail meter reflects the deviation fluctuations caused by environmental and load dimensions.

[0030] Furthermore, obtaining the verification electrical parameters based on the deviation and fluctuation relationship of the three-phase rail meter output electrical parameters, according to the current environmental data, current load data, and the three-phase rail meter output electrical parameters, also includes: Based on the current three-phase guide rail meter historical data deviation fluctuation superposition relationship, calculate the corresponding time sequence three-phase guide rail meter historical data deviation fluctuation superposition relationship to obtain the current deviation superposition value; Based on the current environmental data, current load data, and the output electrical parameters of the three-phase rail meter, the current theoretical deviation fluctuation is obtained according to the deviation fluctuation relationship of the historical data of the three-phase rail meter. The verification electrical parameters are obtained based on the current cumulative deviation value and the current theoretical deviation fluctuation.

[0031] By compensating for the impact of equipment aging through the superposition of historical data deviation fluctuations in three-phase guide rail meters, the accuracy of calibration is improved, the precision of abnormal fault diagnosis is enhanced, and the false judgment rate is reduced.

[0032] Based on the comparison results of the verified electrical parameters and the output electrical parameters with the preset deviation threshold, the three-phase guide rail gauge verification results are output, including: The actual deviation value is obtained based on the verification electrical parameters and the output electrical parameters; If the actual deviation value is less than or equal to the preset deviation threshold, the three-phase guide rail gauge calibration result is normal. If the actual deviation value is greater than the preset deviation threshold, the three-phase guide rail gauge calibration result is abnormal.

[0033] In this embodiment, the verified electrical parameters include at least voltage verification values, current verification values, frequency verification values, and power verification values. The output electrical parameters include at least voltage output values, current output values, and power output values. The actual deviation values ​​include at least voltage deviation values, current deviation values, frequency output values, and power deviation values. The preset deviation thresholds include at least voltage preset deviation thresholds, current preset deviation thresholds, frequency preset deviation thresholds, and power preset deviation thresholds. When any of the actual deviation values ​​exceeds a preset deviation threshold, the current three-phase rail meter is considered to be abnormal, improving the efficiency of abnormal identification of the three-phase rail meter and facilitating timely intervention by operators.

[0034] The data acquisition and analysis methods for three-phase guide rail meters also include: The verification results of the collected data are output based on the verification electrical parameters and the comparison results between the output electrical parameters and the preset abnormal threshold.

[0035] In this embodiment, if either the verification electrical parameter or the output electrical parameter exceeds the range of a preset abnormal threshold, the collected data is considered abnormal, and the operator is reminded to investigate the abnormality.

[0036] In other embodiments, the three-phase rail gauge data acquisition and analysis method further includes: If the data collection verification result is abnormal and the three-phase guide rail meter verification result is abnormal, then the three-phase guide rail meter will be indicated as abnormal. If the data collection verification result is abnormal but the three-phase rail meter verification result is normal, then a circuit abnormality is indicated. If the data collection verification result is normal but the three-phase guide rail meter verification result is abnormal, then the three-phase guide rail meter is abnormal.

[0037] By collecting data verification results and comparing them with the three-phase guide rail meter verification results, the source of the fault can be accurately located, reducing misjudgments, improving fault diagnosis efficiency, and enhancing system stability.

[0038] In some cases, if both the collected data verification result and the three-phase rail gauge verification result are abnormal, the system will further determine whether the abnormality lies with the three-phase rail gauge or the circuit, based on whether both the verified and output electrical parameters exceed preset abnormality thresholds. If both the verified and output electrical parameters exceed the preset abnormality thresholds, the circuit is identified as abnormal; otherwise, the three-phase rail gauge is identified as abnormal. It is understandable that circuit abnormality investigation has a higher priority than three-phase rail gauge abnormality investigation. Therefore, if both the verified and output electrical parameters exceed the preset abnormality thresholds, the circuit is identified as abnormal, prompting operators to prioritize troubleshooting circuit abnormalities.

[0039] It is understandable that the preset deviation threshold can be set according to the required accuracy, and the preset abnormal threshold can be set according to the normal operation data of the power grid. Furthermore, the abnormalities of the three-phase rail meter described in this embodiment do not only include damage or wear of the three-phase rail meter, but also environmental abnormalities. If the environmental factors cause errors in the data collected by the three-phase rail meter, timely intervention by the operator is necessary to avoid any gaps in the monitoring of the power grid status.

[0040] As a second embodiment of this application, a three-phase rail gauge data acquisition and analysis device includes: The communication unit is used to communicate with the three-phase rail meter to obtain the output electrical parameters collected by the three-phase rail meter; The control unit is used to obtain the verification electrical parameters based on the historical data deviation fluctuation relationship of the three-phase rail gauge and the output electrical parameters of the three-phase rail gauge, and output the verification result of the three-phase rail gauge based on the verification electrical parameters and the comparison result of the output electrical parameters with the preset deviation threshold; the display unit is used to display the verification electrical parameters, the output electrical parameters and the verification result of the three-phase rail gauge.

[0041] The communication unit is connected to the control unit, and the control unit is connected to the display unit. The communication unit includes at least an RS485 communication unit, and the display unit is an LCD liquid crystal display.

[0042] In some cases, the three-phase rail gauge data acquisition and analysis device also includes: The button unit is connected to the control unit, and the control unit responds to the button unit's action by executing the corresponding control action.

[0043] The button unit includes at least a communication button, a voltage button, a current button, a frequency button, and a power button. The control unit, in response to the button unit's actions, executes corresponding control actions, including: In response to the action of the communication button, the control unit controls the communication unit to establish communication with the three-phase rail meter and obtains the output electrical parameters of the three-phase rail meter. In response to the voltage button press, the control unit controls the display unit to display the voltage verification value and the voltage output value; In response to the action of the current button, the control unit controls the display unit to display the current verification value and the current output value; In response to the frequency button press, the control unit controls the display unit to display the frequency verification value and the frequency output value; In response to the power button press, the control unit controls the display unit to display the power verification value and the power output value.

[0044] At this time, the communication buttons include RS485 communication buttons.

[0045] The three-phase guide rail meter data acquisition and analysis device also includes: The RTC circuit is used to record the timing information of the output electrical parameters of the three-phase rail gauge. The power supply unit is used to provide the power required by the device.

[0046] In this embodiment, the RTC circuit is connected to the control unit, and the power supply unit is connected to both the control unit and the communication unit. The power supply unit includes at least a battery section and a conversion section. The battery section houses a rechargeable battery, and the conversion section includes at least a power conversion circuit for converting the input power into DC voltage. The battery section is connected to the conversion section, and the conversion section is connected to both the control unit and the communication unit.

[0047] In some other embodiments, the communication unit further includes a Bluetooth communication unit, and correspondingly, the communication button further includes a Bluetooth communication button. The conversion part is connected to the Bluetooth communication unit and the RS485 communication unit respectively, so as to realize independent power supply for the communication unit.

[0048] like Figure 2 As shown, 101 is the device casing, made of PC+10%GF; 102 is the display unit; 103 is the power button; 104 is the power button; 105 is the voltage button; 106 is the current button; 107 is the frequency button; 108 is the scroll button; 109 is the RS485 communication button; 110 is the Bluetooth communication button; 111 is the scroll button; 112 is the power button; 113 is the cancel button; 114 is the confirm button; and 115 is the USB (Type-A) interface.

[0049] In this embodiment, the button unit further includes a power button, an up button, a down button, a power button, a cancel button, and a confirm button.

[0050] The three-phase guide rail meter data acquisition and analysis device also includes: The storage unit, connected to the control unit, is used to store historical data of the three-phase rail gauge.

[0051] Correspondingly, when the power button is pressed, the display unit shows the current total power consumption of the three-phase rail meter; when the up button is pressed, the display unit shows the historical data of the three-phase rail meter, which can be viewed by scrolling up; when the up button is pressed, the display unit shows the historical data of the three-phase rail meter, which can be viewed by scrolling down; when the power button is pressed, the control device is turned on or off; when the cancel button is pressed, the current operation is canceled; when the confirm button is pressed, the current operation is executed.

[0052] In this embodiment, the three-phase rail gauge data acquisition and analysis device is charged by connecting to a charger via a USB (Type-A) interface. When the USB (Type-A) interface is connected to a USB to RS485 communication cable, it is physically connected to the three-phase rail gauge to acquire the data collected by the three-phase rail gauge.

[0053] In this embodiment, the device has a built-in rechargeable battery, is small in size and light in weight, and is easy to carry. It uses low-power technology and can be charged via USB interface. When used in the field, an external USB to RS485 communication cable can be connected to the auxiliary terminal of the guide rail meter to communicate. It can automatically pair and bind via Bluetooth to perform data copying and display, thereby improving the efficiency of three-phase guide rail meter data acquisition and analysis.

[0054] The specific embodiments described above are preferred embodiments of the three-phase guide rail meter data acquisition and analysis method and device of this application, and are not intended to limit the specific implementation scope of this application. The scope of this application includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with the shape and structure of this application are within the protection scope of this application.

Claims

1. A method for acquiring and analyzing data from a three-phase guide rail meter, characterized in that: Includes the following steps: In response to the communication signal of the three-phase rail meter, the output electrical parameters of the three-phase rail meter are acquired. Verification electrical parameters are obtained based on the historical data deviation fluctuation relationship of the three-phase rail meter and its output electrical parameters. This includes constructing the historical data deviation fluctuation relationship of the three-phase rail meter corresponding to the environmental and load dimensions based on historical environmental data, historical load data, historical full-lifecycle operation data of the three-phase rail meter, and historical verification data of the three-phase rail meter. ； ； Where Y represents the check value, Indicates temperature weighting. Indicates the temperature value. Indicates humidity weight. Indicates humidity value. Indicates electromagnetic interference weight. Indicates electromagnetic interference value. Indicates the load balance weight. Indicates the degree of load balance. Indicates the weight of load harmonic content. Indicates the load harmonic content. Indicates the load power fluctuation weight. This represents the load power fluctuation value, and X represents the value collected by the three-phase rail meter. Based on the operating sequence and maintenance sequence of the three-phase rail meter, the historical data deviation fluctuation superposition relationship of the three-phase rail meter is obtained according to the aging and wear of the equipment. The superposition value of the historical verification data of the three-phase rail meter under each time sequence is filtered out based on this relationship. Based on the filtered historical verification data, historical environmental data, historical load data, and historical full life-cycle operating data of the three-phase rail meter, the historical data deviation fluctuation relationship of the three-phase rail meter corresponding to the environmental and load dimensions is constructed. Based on the current historical data deviation fluctuation superposition relationship of the three-phase rail meter, the current deviation superposition value is obtained by calculating the corresponding historical data deviation fluctuation superposition relationship of the three-phase rail meter. Based on the current environmental data, current load data, and the output electrical parameters of the three-phase rail meter, the current theoretical deviation fluctuation is obtained based on the historical data deviation fluctuation relationship of the three-phase rail meter. The verification electrical parameters are obtained based on the current deviation superposition value and the current theoretical deviation fluctuation. Based on the comparison results of the verified electrical parameters and the output electrical parameters with the preset deviation threshold, the three-phase guide rail gauge verification results are output, including: The actual deviation value is obtained based on the verification electrical parameters and the output electrical parameters; If the actual deviation value is less than or equal to the preset deviation threshold, the three-phase rail meter calibration result is normal; if the actual deviation value is greater than the preset deviation threshold, the three-phase rail meter calibration result is abnormal. The collected data calibration result is output based on the comparison between the calibration electrical parameters and the output electrical parameters and the preset abnormal threshold. If both the collected data calibration result and the three-phase rail meter calibration result are abnormal, a three-phase rail meter abnormality is indicated. If the collected data calibration result is abnormal but the three-phase rail meter calibration result is normal, a circuit abnormality is indicated. If the collected data calibration result is normal but the three-phase rail meter calibration result is abnormal, a three-phase rail meter abnormality is indicated.

2. A three-phase guide rail meter data acquisition and analysis device, used to implement the method as described in claim 1, characterized in that: include: The communication unit is used to communicate with the three-phase rail meter to obtain the output electrical parameters collected by the three-phase rail meter; The control unit is used to obtain the verification electrical parameters based on the deviation fluctuation relationship of the historical data of the three-phase rail gauge and the output electrical parameters of the three-phase rail gauge, and to output the verification result of the three-phase rail gauge based on the verification electrical parameters and the comparison result of the output electrical parameters with the preset deviation threshold. The display unit is used to display the verification electrical parameters, output electrical parameters, and the verification results of the three-phase guide rail meter.

3. The three-phase guide rail meter data acquisition and analysis device as described in claim 2, characterized in that: Also includes: The button unit is connected to the control unit, and the control unit responds to the button unit's action by outputting corresponding electrical parameter information.

4. The three-phase guide rail meter data acquisition and analysis device as described in claim 3, characterized in that: Also includes: The RTC circuit is used to record the timing information of the output electrical parameters of the three-phase rail gauge. The power supply unit is used to provide the power required by the device.

5. The three-phase guide rail meter data acquisition and analysis device as described in claim 4, characterized in that: The power supply unit includes at least a battery section and a conversion section. The battery section is used to install a rechargeable battery, and the conversion section includes at least a power conversion circuit for converting the input power into DC voltage. The battery section is connected to the conversion section, and the conversion section is connected to the control unit and the communication unit.

6. The three-phase guide rail meter data acquisition and analysis device as described in claim 5, characterized in that: Also includes: The storage unit, connected to the control unit, is used to store historical data of the three-phase rail gauge.

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