Monitoring system and method based on electric power metering intelligent laboratory

Abstract

The invention relates to the technical field of electric power management, in particular to a monitoring system and method based on an electric power metering smart laboratory, and the system comprises a selection module which is used for calculating the performance value of each mutual inductor in mutual inductors produced in batches by using the operation parameters of mutual inductor production equipment corresponding to each mutual inductor, and determining the performance value of each mutual inductor; selecting sample mutual inductors of a plurality of detection targets according to the performance values of the mutual inductors; the detection module is used for obtaining a secondary side current or voltage value of the sample mutual inductor of each detection target; the judgment module is used for judging whether the secondary side current or voltage value of the sample mutual inductor of each detection target meets the threshold value of the secondary side current or voltage; the evaluation module is used for evaluating the quality of the batch-produced mutual inductors of the batch where the sample mutual inductor of the detection target is located; efficient quality control can be achieved in the mass production process of mutual inductors, and the consistency and reliability of product quality are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of power management, and in particular to a monitoring system and method based on a power metering smart laboratory. Background Art

[0002] In the field of power systems, with the rapid development of new power grid links such as smart grids, distributed power sources, new energy, and microgrids, power metering and testing work is gradually moving towards large-scale, high-speed, and refined directions. As a key basic support and quality assurance link for power systems, power metering and testing work plays a role in quantitative evaluation and quality monitoring in power systems.

[0003] As the core platform for power metering management, the Power Metering Smart Laboratory carries multiple businesses such as inspection, testing, verification and calibration, and provides measurement standard value transfer and measurement quality supervision services for enterprises and society. By conducting quality inspection and performance evaluation on measuring instruments and their detection devices, ensuring the reliability and accuracy of measuring instruments and their detection devices, and timely discovering potential problems and failure trends of measuring instruments and their detection devices, it is of great significance to the safe and reliable operation of the entire power system.

[0004] In the prior art, Chinese patent publication number CN115754880A discloses an intelligent current transformer quality detection system, which is characterized by comprising: a data acquisition module for recording a standard current transformer and generating a standard output waveform; a test module for testing the current transformer to be tested and generating an output waveform to be tested; a comparison module for comparing the standard output waveform with the output waveform to be tested and generating a comparison result; a calibration module for calibrating the current transformer to be tested based on the comparison result and generating a calibration result; and an early warning module for early warning the current transformer to be tested based on the calibration result. Although the system realizes quality detection of current transformers by comparing current transformer data, in the process of transformer mass production, due to the large number of transformers produced in batches, it is difficult to meet the high-throughput requirements of transformer mass production by detecting each transformer one by one, resulting in a significant reduction in the production efficiency of transformer mass production and affecting the product quality consistency of transformer mass production.

[0005] In order to eliminate the problem that the production efficiency of transformer batch production is reduced and the quality consistency of transformer batch production cannot be ensured due to the detection method being unable to meet the high-throughput requirements of batch production, technical personnel in this field have been seeking effective monitoring methods for power metering smart laboratories so as to achieve efficient quality control in the process of transformer batch production and ensure the consistency and reliability of product quality. Summary of the invention

[0006] The purpose of the present invention is to provide a monitoring system and method based on an electric power metering smart laboratory, which solves the technical problems raised in the above-mentioned background technology.

[0007] The monitoring system based on the power metering smart laboratory designed by the present invention to achieve one of the above purposes is special in that it includes:

[0008] A selection module is used to calculate the performance value of each transformer in the batch-produced transformers by using the operating parameters of the transformer production equipment corresponding to each transformer, and select sample transformers of multiple detection targets according to the performance value of each transformer;

[0009] A detection module, used to install the sample transformer of each detection target into a test circuit with a primary side current or voltage conversion requirement to obtain the secondary side current or voltage value of the sample transformer of each detection target;

[0010] A determination module, used to determine whether the secondary-side current or voltage value of the sample transformer of each detection target meets the threshold value of the secondary-side current or voltage, and when the threshold value of the secondary-side current or voltage is met, the sample transformer corresponding to the detection target is determined to be a sample transformer of the detection target with qualified quality;

[0011] The evaluation module is used to evaluate the quality of the batch of mass-produced transformers in which the sample transformers of the detection target belong according to the ratio of the number of sample transformers of the detection target with qualified quality to the number of mass-produced transformers.

[0012] Furthermore, the selection module includes:

[0013] An identification unit, used to identify the production number of the transformer and determine the production sequence of the transformers produced in batches;

[0014] A collection unit, used for collecting operating parameters of transformer production equipment during the production process of mass-produced transformers;

[0015] The operating parameters of the transformer production equipment include: the operating power of the transformer production equipment and the production frequency of the transformer production equipment;

[0016] The analysis unit is used to determine the operating parameters of the transformer production equipment corresponding to each transformer in the batch-produced transformers according to the number of transformers produced in the batch, as described in the following formula:

[0017]

[0018] Wherein, d represents the time range of the operating parameters of the transformer production equipment corresponding to each transformer, t represents the time range of the operating parameters of the transformer production equipment corresponding to the transformers produced in batches, and m represents the number of transformers produced in batches; the operating parameters of the transformer production equipment corresponding to each transformer are the operating parameters of the transformer production equipment corresponding to each transformer within the time range of the operating parameters of the transformer production equipment corresponding to each transformer;

[0019] The analysis unit is also used to calculate the performance value X of each transformer in the batch-produced transformers by using the operating parameters of the transformer production equipment corresponding to each transformer, and select multiple sample transformers of the detection target according to the performance value of each transformer. The performance value X of each transformer is calculated using the following formula:

[0020]

[0021] Among them, s represents the production frequency of the transformer production equipment, u represents the time range of the operating parameters of the transformer production equipment corresponding to each transformer, and p v It represents the operating power of the transformer production equipment corresponding to each transformer at time v within the time range of the operating parameters, p max Indicates the maximum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer, p min Indicates the minimum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer; the performance value X of each transformer is inversely proportional to the quality of the transformer production environment, and the performance value X of the transformers based on batch production is arranged in descending order, and the preceding transformers that are not greater than one tenth of the number of transformers produced in batches are selected as sample transformers of the detection target.

[0022] Furthermore, the detection module installs the sample transformer of each detection target into a test circuit with a requirement for converting the primary-side current or voltage into the secondary-side current or voltage, and performs a test on the sample transformer of each detection target to convert the large current on the primary side into the small current on the secondary side or the high voltage on the primary side into the low voltage on the secondary side by controlling the number of tests and the conversion ratio of the target current or voltage, so as to obtain the secondary-side current or voltage value of the sample transformer of each detection target.

[0023] Furthermore, the determination module determines whether the secondary side current or voltage value of the sample transformer of each detection target meets the threshold value of the secondary side current or voltage, as described in the following formula:

[0024]

[0025] Among them, η I Indicates that the sample transformer of the detection target is the judgment value of the current transformer, η VIndicates that the sample transformer of the detection target is the judgment value of the voltage transformer, n indicates the number of tests of the sample transformer of the detection target, (I0) i Indicates the primary current value of the sample transformer of the detection target, I i Represents the i-th secondary current value of the sample transformer of the detection target, (V0) i Represents the primary voltage value of the sample transformer of the detection target for the i-th time, V i represents the i-th secondary voltage value of the sample transformer of the detection target, ω1 represents the calculation weight coefficient of the sample transformer of the detection target as a current transformer, and ω2 represents the calculation weight coefficient of the sample transformer of the detection target as a voltage transformer; when the sample transformer of the detection target is a current transformer, based on formula (1), the judgment value η of the sample transformer of the detection target as a current transformer is I If the judgment value meets the threshold value of the secondary current, the sample transformer of the detection target is a current transformer of qualified quality; when the sample transformer of the detection target is a voltage transformer, the judgment value η of the sample transformer of the detection target as a voltage transformer is calculated based on formula (2). V A determination is made, and if the determination value meets the threshold value of the secondary side voltage, the sample transformer of the detection target is a voltage transformer of qualified quality.

[0026] Furthermore, the calculation weight coefficient ω1 when the sample transformer of the detection target is a current transformer and the calculation weight coefficient ω2 when the sample transformer of the detection target is a voltage transformer are calculated using the following formula:

[0027]

[0028] Among them, c i It represents the operating temperature when the current or voltage on the primary side of the sample transformer of the detection target is converted into the current or voltage on the secondary side for the i-th time, and γ represents the adjustment factor.

[0029] Furthermore, the evaluation module performs evaluation based on the ratio of the number of sample transformers of the detection target with qualified quality to the number of transformers produced in batches. When the ratio is greater than 99% or there is only one transformer with unqualified quality, the quality of the batch of transformers produced in the batch where the sample transformer of the detection target is located is qualified; when the judgment result is that the quality of the batch of transformers produced in the batch where the sample transformer of the detection target is located is unqualified, the adjacent transformers in the production sequence of the batch of transformers produced in the batch are selected as the sample transformers of the new detection target, and the determination module is used to determine whether the secondary side current or voltage value of the sample transformer of the new detection target meets the threshold value of the secondary side current or voltage; if it meets the threshold value, the secondary side current or voltage value of the sample transformer of the new detection target is determined by the determination module. If the secondary side current or voltage threshold is met, the sample transformer of the new detection target is a current transformer of qualified quality, and the quality of the batch of mass-produced transformers in that batch is determined based on the comprehensive judgment result; if it does not meet the secondary side current or voltage threshold, the adjacent transformers in the production sequence of the batch of mass-produced transformers in that batch are selected as the sample transformers of the new detection target, and the judgment module is used to judge again whether the secondary side current or voltage value converted by the sample transformer of the new detection target meets the conversion current or voltage threshold, until the judgment module judges that the secondary side current or voltage value of the sample transformer of the new detection target meets the threshold, and the quality of the batch of mass-produced transformers in that batch is determined based on the comprehensive judgment result.

[0030] As a preferred solution, the identification unit, the collection unit and the analysis unit in the selection module perform data transmission via a wireless network; the information of the sample transformer selected by the selection module as the detection target is transmitted to the detection module via a wireless network; the secondary side current or voltage value of the sample transformer of the detection target obtained by the detection module is transmitted to the determination module via a wireless network; the determination information of the determination module is transmitted to the evaluation module via a wireless network.

[0031] The monitoring method based on the power metering smart laboratory designed by the present invention to achieve the second purpose above is special in that it includes the following steps:

[0032] Calculate the performance value of each transformer in the batch-produced transformers by using the operating parameters of the transformer production equipment corresponding to each transformer, and select sample transformers of multiple detection targets according to the performance value of each transformer;

[0033] Installing the sample transformer of each detection target into a test circuit that has a requirement to convert the primary side current or voltage into the secondary side current or voltage, and obtaining the secondary side current or voltage value of the sample transformer of each detection target;

[0034] Determine whether the secondary-side current or voltage value of the sample transformer of each detection target meets the threshold value of the secondary-side current or voltage. When the threshold value of the secondary-side current or voltage is met, determine that the sample transformer of the corresponding detection target is a sample transformer of the detection target with qualified quality;

[0035] According to the ratio of the number of qualified sample transformers of the test target to the number of mass-produced transformers, the quality of the mass-produced transformers in the batch where the sample transformers of the test target belong is evaluated.

[0036] Furthermore, the method of calculating the performance value of each transformer in the batch-produced transformers by using the operating parameters of the transformer production equipment corresponding to each transformer, and selecting a plurality of sample transformers of the detection target according to the performance value of each transformer, includes:

[0037] Identify the production number of the transformer and determine the production sequence of the transformers in batch production

[0038] Collect the operating parameters of the transformer production equipment during the production process of mass-produced transformers

[0039] Among them, the operating parameters of the transformer production equipment include: the operating power of the transformer production equipment and the production frequency of the transformer production equipment

[0040] The operating parameters of the transformer production equipment corresponding to each transformer in the batch production are determined by the number of transformers produced in batches. The performance value X of each transformer in the batch production is calculated using the operating parameters of the transformer production equipment corresponding to each transformer. Sample transformers of multiple detection targets are selected according to the performance value of each transformer.

[0041] A computing device designed by the present invention to achieve the third objective above includes a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface communicate with each other via the communication bus;

[0042] The memory is used to store at least one executable instruction, and the executable instruction enables the processor to execute operations corresponding to the above-mentioned monitoring method based on the power metering smart laboratory.

[0043] According to the technical solution provided by the present invention, in the process of transformer production, the performance value of each transformer in the batch-produced transformers is calculated by using the operating parameters of the transformer production equipment corresponding to each transformer, and a plurality of sample transformers of the detection target are selected according to the performance value of each transformer, and a test is performed to convert the large current on the primary side into the small current on the secondary side or the high voltage on the primary side into the low voltage on the secondary side, so as to obtain the secondary side current or voltage value of the sample transformer of each detection target, and the quality of the batch of batch-produced transformers of the sample transformers of the detection target is evaluated according to the ratio of the number of sample transformers of the detection target with qualified quality to the number of batch-produced transformers, and representative sampling detection of the transformers is adopted to ensure the quality while improving the detection efficiency, and the quality of the batch of batch-produced transformers in which the sample transformers of the detection target are located is evaluated through the quality judgment results of the sample transformers, so as to ensure the consistency and reliability of the overall quality of the product.

[0044] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 A module diagram of a monitoring system based on an electric power metering smart laboratory.

[0046] Figure 2 The present invention is a flow chart of a monitoring method based on an electric power metering smart laboratory.

[0047] Figure 3 The figure is a schematic diagram of the structure of a computing device of the present invention. DETAILED DESCRIPTION

[0048] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0049] Figure 1 FIG. 4 shows a module schematic diagram of a monitoring system based on a power metering smart laboratory according to an embodiment of the present invention. Figure 1 As shown, the system includes:

[0050] A selection module is used to calculate the performance value of each transformer in the batch-produced transformers by using the operating parameters of the transformer production equipment corresponding to each transformer, and select sample transformers of multiple detection targets according to the performance value of each transformer;

[0051] A detection module, used to install the sample transformer of each detection target into a test circuit with a primary side current or voltage conversion requirement to obtain the secondary side current or voltage value of the sample transformer of each detection target;

[0052] A determination module, used to determine whether the secondary-side current or voltage value of the sample transformer of each detection target meets the threshold value of the secondary-side current or voltage, and when the threshold value of the secondary-side current or voltage is met, the sample transformer corresponding to the detection target is determined to be a sample transformer of the detection target with qualified quality;

[0053] The evaluation module is used to evaluate the quality of the batch of mass-produced transformers in which the sample transformers of the detection target belong according to the ratio of the number of sample transformers of the detection target with qualified quality to the number of mass-produced transformers.

[0054] Specifically, the selected modules include:

[0055] An identification unit, used to identify the production number of the transformer and determine the production sequence of the transformers produced in batches;

[0056] A collection unit, used for collecting operating parameters of transformer production equipment during the production process of mass-produced transformers;

[0057] The operating parameters of the transformer production equipment include: the operating power of the transformer production equipment and the production frequency of the transformer production equipment;

[0058] The analysis unit is used to determine the operating parameters of the transformer production equipment corresponding to each transformer in the batch-produced transformers according to the number of transformers produced in the batch, as described in the following formula:

[0059]

[0060] Wherein, d represents the time range of the operating parameters of the transformer production equipment corresponding to each transformer, t represents the time range of the operating parameters of the transformer production equipment corresponding to the transformers produced in batches, and m represents the number of transformers produced in batches; the operating parameters of the transformer production equipment corresponding to each transformer are the operating parameters of the transformer production equipment corresponding to each transformer within the time range of the operating parameters of the transformer production equipment corresponding to each transformer;

[0061] The analysis unit is also used to calculate the performance value X of each transformer in the batch-produced transformers by using the operating parameters of the transformer production equipment corresponding to each transformer, and select multiple sample transformers of the detection target according to the performance value of each transformer. The performance value X of each transformer is calculated using the following formula:

[0062]

[0063] Among them, s represents the production frequency of the transformer production equipment, u represents the time range of the operating parameters of the transformer production equipment corresponding to each transformer, and p v It represents the operating power of the transformer production equipment corresponding to each transformer at time v within the time range of the operating parameters, p max Indicates the maximum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer, p min Indicates the minimum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer; the performance value X of each transformer is inversely proportional to the quality of the transformer production environment, and the performance value X of the transformers based on batch production is arranged in descending order. The preceding transformers that are not greater than one-tenth of the number of transformers produced in batches are selected as sample transformers of the detection target, thereby ensuring the representativeness of the sample transformers as the detection target and improving the detection efficiency.

[0064] Specifically, the detection module installs the sample transformer of each detection target into a test circuit with a requirement for converting the primary-side current or voltage into the secondary-side current or voltage; when the sample transformer of the detection target is a current transformer, a test is performed on converting the large current on the primary side into the small current on the secondary side, and the target current conversion is controlled to perform multiple tests at different input current levels, and the large current data of the input primary side and the small current data of the output secondary side are collected; when the sample transformer of the detection target is a voltage transformer, a test is performed on converting the high voltage on the primary side into the low voltage on the secondary side, and the target voltage conversion ratio is controlled to perform multiple tests at different input voltage levels, and the high voltage data of the input primary side and the low voltage data of the output secondary side are collected; and the secondary-side current or voltage value of the sample transformer of each detection target is obtained.

[0065] Specifically, the determination module determines whether the secondary side current or voltage value of the sample transformer of each detection target meets the threshold value of the secondary side current or voltage, as described in the following formula:

[0066]

[0067] Among them, η I Indicates that the sample transformer of the detection target is the judgment value of the current transformer, η V Indicates that the sample transformer of the detection target is the judgment value of the voltage transformer, n indicates the number of tests of the sample transformer of the detection target, (I0) i Indicates the primary current value of the sample transformer of the detection target, I i Represents the i-th secondary current value of the sample transformer of the detection target, (V0) i Represents the primary voltage value of the sample transformer of the detection target for the i-th time, V irepresents the u-th secondary voltage value of the sample transformer of the detection target, ω1 represents the calculation weight coefficient of the sample transformer of the detection target as a current transformer, and ω2 represents the calculation weight coefficient of the sample transformer of the detection target as a voltage transformer; when the sample transformer of the detection target is a current transformer, based on formula (1), the judgment value η of the sample transformer of the detection target as a current transformer is I If the judgment value meets the threshold value of the secondary current, the sample transformer of the detection target is a current transformer of qualified quality; when the sample transformer of the detection target is a voltage transformer, the judgment value η of the sample transformer of the detection target as a voltage transformer is calculated based on formula (2). V A judgment is made. If the judgment value meets the threshold value of the secondary side voltage, the sample transformer of the detection target is a voltage transformer of qualified quality, thereby achieving the judgment of the current transformer and the voltage transformer separately, ensuring the accuracy and comprehensiveness of the judgment result.

[0068] Specifically, the calculation weight coefficient ω1 when the sample transformer of the detection target is a current transformer and the calculation weight coefficient ω2 when the sample transformer of the detection target is a voltage transformer are calculated using the following formula:

[0069]

[0070] Among them, c i represents the operating temperature when the current or voltage on the primary side of the sample transformer of the detection target is converted to the current or voltage on the secondary side for the i-th time, and γ represents the adjustment factor; when the sample transformer of the detection target is a current transformer, the value of the adjustment factor γ is 0.505; when the sample transformer of the detection target is a voltage transformer, the value of the adjustment factor γ is 0.495, thereby achieving the determination results of standardized current transformers and voltage transformers.

[0071] Specifically, the evaluation module evaluates the ratio of the number of sample transformers of the detection target with qualified quality to the number of transformers produced in batches. When the ratio is greater than 99% or there is only one transformer with unqualified quality, the quality of the batch of transformers produced in the batch where the sample transformer of the detection target is located is qualified; when the judgment result is that the quality of the batch of transformers produced in the batch where the sample transformer of the detection target is located is unqualified, the adjacent transformers in the production sequence of the batch of transformers produced in the batch are selected as the sample transformers of the new detection target, and the judgment module is used to judge whether the secondary side current or voltage value of the sample transformer of the new detection target meets the threshold value of the secondary side current or voltage; if it meets the threshold value of the secondary side current or voltage, the new detection target is The target sample transformer is a current transformer of qualified quality. The quality of the batch of mass-produced transformers is determined based on the comprehensive judgment result. If it does not meet the threshold of secondary current or voltage, the adjacent transformers in the production sequence of the batch of mass-produced transformers are selected as the new sample transformers for detection. The judgment module is used to judge again whether the secondary current or voltage value converted by the new sample transformer of the detection target meets the threshold of the conversion current or voltage, until the judgment module judges that the secondary current or voltage value of the new sample transformer of the detection target meets the threshold. The quality of the batch of mass-produced transformers is determined based on the comprehensive judgment result, thereby realizing effective management of mass-produced transformers and ensuring the consistency and reliability of product quality.

[0072] Optionally, the identification unit, the collection unit and the analysis unit in the selection module transmit data via a wireless network; the information of the sample transformer selected as the detection target by the selection module is transmitted to the detection module via a wireless network; the secondary side current or voltage value of the sample transformer of the detection target obtained by the detection module is transmitted to the determination module via a wireless network; the determination information of the determination module is transmitted to the evaluation module via a wireless network.

[0073] Figure 2 FIG. 4 is a flow chart showing a monitoring method based on a power metering smart laboratory according to an embodiment of the present invention. Figure 2 As shown, the method comprises the following steps:

[0074] Step 1: Calculate the performance value of each transformer in the batch-produced transformers using the operating parameters of the transformer production equipment corresponding to each transformer, and select multiple sample transformers of the detection target according to the performance value of each transformer;

[0075] Step 2: Install the sample transformer of each detection target into a test circuit that has a requirement for converting the primary side current or voltage into the secondary side current or voltage, and obtain the secondary side current or voltage value of the sample transformer of each detection target;

[0076] Step 3, determining whether the secondary side current or voltage value of the sample transformer of each detection target meets the threshold value of the secondary side current or voltage. When the threshold value of the secondary side current or voltage is met, the sample transformer corresponding to the detection target is determined to be a sample transformer of the detection target with qualified quality;

[0077] Step 4: based on the ratio of the number of qualified sample transformers of the test target to the number of transformers produced in batches, the quality of the batch of transformers produced in the batch of the sample transformers of the test target is evaluated.

[0078] Specifically, the performance value of each transformer in the batch-produced transformers is calculated by using the operating parameters of the transformer production equipment corresponding to each transformer, and sample transformers of multiple detection targets are selected according to the performance value of each transformer, including:

[0079] Identify the production number of the transformer and determine the production sequence of the transformers in batch production

[0080] Collect the operating parameters of the transformer production equipment during the production process of mass-produced transformers

[0081] Among them, the operating parameters of the transformer production equipment include: the operating power of the transformer production equipment and the production frequency of the transformer production equipment

[0082] The operating parameters of the transformer production equipment corresponding to each transformer in the batch production are determined by the number of transformers produced in batches. The performance value X of each transformer in the batch production is calculated using the operating parameters of the transformer production equipment corresponding to each transformer. Sample transformers of multiple detection targets are selected according to the performance value of each transformer.

[0083] Figure 3 A schematic diagram of the structure of a computing device according to an embodiment of the present invention is shown. The specific embodiment of the present invention does not limit the specific implementation of the computing device.

[0084] like Figure 3 As shown, the computing device may include: a processor, a communication interface, a memory, and a communication bus.

[0085] Wherein: the processor, the communication interface, and the memory communicate with each other via a communication bus.

[0086] Communication interface, used to communicate with other devices such as client or other server network elements.

[0087] The processor is used to execute the program, and specifically can execute the relevant steps in the above-mentioned monitoring method embodiment based on the power metering smart laboratory.

[0088] Specifically, the program may include program codes including computer operation instructions.

[0089] The processor may be a central processing unit (CPU), or a specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention. The one or more processors included in the computing device may be processors of the same type, such as one or more CPUs; or processors of different types, such as one or more CPUs and one or more ASICs.

[0090] The memory is used to store programs. The memory may include a high-speed RAM memory, and may also include a non-volatile memory, such as at least one disk memory.

[0091] The program can be specifically used to enable the processor to execute the monitoring method based on the power metering smart laboratory in any of the above-mentioned method embodiments. The specific implementation of each step in the program can refer to the corresponding descriptions in the corresponding steps and units in the above-mentioned monitoring method embodiment based on the power metering smart laboratory, which will not be repeated here. Technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, the specific working process of the above-described equipment and modules can refer to the corresponding process description in the aforementioned method embodiment, which will not be repeated here.

[0092] The algorithm and display provided herein are not inherently related to any particular computer, virtual system or other device. Various general purpose systems can also be used together with the teachings based on this. According to the above description, it is obvious that the structure required for constructing such systems. In addition, the present invention is not directed to any specific programming language either. It should be understood that various programming languages ​​can be utilized to realize the content of the present invention described herein, and the description of the above specific languages ​​is for disclosing the best mode of the present invention.

[0093] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0094] Similarly, it should be understood that in order to streamline the present disclosure and aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting the intention that the claimed invention requires more features than those expressly recited in each claim. Rather, as reflected in the claims, inventive aspects lie in less than all of the features of the individual embodiments previously disclosed. Therefore, the claims that follow the detailed description are hereby expressly incorporated into the detailed description, with each claim itself serving as a separate embodiment of the present invention.

Claims

1. A monitoring system based on an electric power metering smart laboratory, characterized in that: include: A selection module is used to calculate the performance value of each transformer in the batch-produced transformers by using the operating parameters of the transformer production equipment corresponding to each transformer, and select sample transformers of multiple detection targets according to the performance value of each transformer; A detection module, used to install the sample transformer of each detection target into a test circuit with a primary side current or voltage conversion requirement to obtain the secondary side current or voltage value of the sample transformer of each detection target; A determination module, used to determine whether the secondary-side current or voltage value of the sample transformer of each detection target meets the threshold value of the secondary-side current or voltage, and when the threshold value of the secondary-side current or voltage is met, the sample transformer corresponding to the detection target is determined to be a sample transformer of the detection target with qualified quality; The evaluation module is used to evaluate the quality of the batch of mass-produced transformers in which the sample transformers of the detection target belong according to the ratio of the number of sample transformers of the detection target with qualified quality to the number of mass-produced transformers.

2. The monitoring system based on the power metering smart laboratory according to claim 1 is characterized in that: The selection module comprises: An identification unit, used to identify the production number of the transformer and determine the production sequence of the transformers produced in batches; A collection unit, used for collecting operating parameters of transformer production equipment during the production process of mass-produced transformers; The operating parameters of the transformer production equipment include: the operating power of the transformer production equipment and the production frequency of the transformer production equipment; The analysis unit is used to determine the operating parameters of the transformer production equipment corresponding to each transformer in the batch-produced transformers according to the number of transformers produced in the batch, as described in the following formula: Wherein, d represents the time range of the operating parameters of the transformer production equipment corresponding to each transformer, t represents the time range of the operating parameters of the transformer production equipment corresponding to the transformers produced in batches, and m represents the number of transformers produced in batches; the operating parameters of the transformer production equipment corresponding to each transformer are the operating parameters of the transformer production equipment corresponding to each transformer within the time range of the operating parameters of the transformer production equipment corresponding to each transformer; The analysis unit is also used to calculate the performance value X of each transformer in the batch-produced transformers by using the operating parameters of the transformer production equipment corresponding to each transformer, and select multiple sample transformers of the detection target according to the performance value of each transformer. The performance value X of each transformer is calculated using the following formula: Among them, s represents the production frequency of the transformer production equipment, u represents the time range of the operating parameters of the transformer production equipment corresponding to each transformer, and p v It represents the operating power of the transformer production equipment corresponding to each transformer at time v within the time range of the operating parameters, p max Indicates the maximum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer, p min Indicates the minimum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer; the performance value X of each transformer is inversely proportional to the quality of the transformer production environment, and the performance value X of the transformers based on batch production is arranged in descending order, and the preceding transformers that are not greater than one tenth of the number of transformers produced in batches are selected as sample transformers of the detection target.

3. The monitoring system based on the power metering smart laboratory according to claim 1 is characterized in that: The detection module installs the sample transformer of each detection target into a test circuit with a requirement to convert the primary-side current or voltage into the secondary-side current or voltage, and performs a test on the sample transformer of each detection target to convert the large current on the primary side into the small current on the secondary side or the high voltage on the primary side into the low voltage on the secondary side by controlling the number of tests and the conversion ratio of the target current or voltage, so as to obtain the secondary-side current or voltage value of the sample transformer of each detection target.

4. The monitoring system based on the power metering smart laboratory according to claim 1 is characterized in that: The determination module determines whether the secondary side current or voltage value of the sample transformer of each detection target meets the threshold value of the secondary side current or voltage, as described in the following formula: Among them, η I Indicates that the sample transformer of the detection target is the judgment value of the current transformer, η V Indicates that the sample transformer of the detection target is the judgment value of the voltage transformer, n indicates the number of tests of the sample transformer of the detection target, (I0) i Indicates the primary current value of the sample transformer of the detection target, I i Represents the i-th secondary current value of the sample transformer of the detection target, (V0) i Represents the primary voltage value of the sample transformer of the detection target for the i-th time, V i represents the i-th secondary voltage value of the sample transformer of the detection target, ω1 represents the calculation weight coefficient of the sample transformer of the detection target as a current transformer, and ω2 represents the calculation weight coefficient of the sample transformer of the detection target as a voltage transformer; when the sample transformer of the detection target is a current transformer, based on formula (1), the judgment value η of the sample transformer of the detection target as a current transformer is I If the judgment value meets the threshold value of the secondary current, the sample transformer of the detection target is a current transformer of qualified quality; when the sample transformer of the detection target is a voltage transformer, the judgment value η of the sample transformer of the detection target as a voltage transformer is calculated based on formula (2). V A determination is made, and if the determination value meets the threshold value of the secondary side voltage, the sample transformer of the detection target is a voltage transformer of qualified quality.

5. The monitoring system based on the power metering smart laboratory according to claim 4 is characterized in that: The calculation weight coefficient ω1 of the sample mutual inductor of the detection target being a current mutual inductor and the calculation weight coefficient ω2 of the sample mutual inductor of the detection target being a voltage mutual inductor are calculated using the following formula: Among them, c i It represents the operating temperature when the current or voltage on the primary side of the sample transformer of the detection target is converted into the current or voltage on the secondary side for the i-th time, and γ represents the adjustment factor.

6. The monitoring system based on the power metering smart laboratory according to claim 1 is characterized in that: The evaluation module evaluates according to the ratio of the number of sample transformers of the detection target with qualified quality to the number of transformers produced in batches. When the ratio is greater than 99% or there is only one transformer with unqualified quality, the quality of the batch of transformers produced in the batch where the sample transformers of the detection target are located is qualified; when the judgment result is that the quality of the batch of transformers produced in the batch where the sample transformers of the detection target are located is unqualified, the adjacent transformers in the production sequence of the batch of transformers produced in the batch are selected as the sample transformers of the new detection target, and the secondary side current or voltage value of the sample transformer of the new detection target is judged by the judgment module to see whether it meets the threshold value of the secondary side current or voltage; if it meets the threshold value, the secondary side current or voltage value is determined by the judgment module. If the secondary side current or voltage threshold is met, the sample transformer of the new detection target is a current transformer of qualified quality, and the quality of the batch of mass-produced transformers in that batch is determined based on the comprehensive judgment result; if it does not meet the secondary side current or voltage threshold, the adjacent transformers in the production sequence of the batch of mass-produced transformers in that batch are selected as the sample transformers of the new detection target, and the judgment module is used to judge again whether the secondary side current or voltage value converted by the sample transformer of the new detection target meets the conversion current or voltage threshold, until the judgment module judges that the secondary side current or voltage value of the sample transformer of the new detection target meets the threshold, and the quality of the batch of mass-produced transformers in that batch is determined based on the comprehensive judgment result.

7. The monitoring system based on the power metering smart laboratory according to claim 1 is characterized in that: The identification unit, the acquisition unit and the analysis unit in the selection module transmit data via a wireless network; the information of the sample transformer selected by the selection module as the detection target is transmitted to the detection module via a wireless network; the secondary side current or voltage value of the sample transformer of the detection target obtained by the detection module is transmitted to the determination module via a wireless network; the determination information of the determination module is transmitted to the evaluation module via a wireless network.

8. A monitoring method based on an electric power metering smart laboratory, characterized in that: The steps include: Calculate the performance value of each transformer in the batch-produced transformers by using the operating parameters of the transformer production equipment corresponding to each transformer, and select sample transformers of multiple detection targets according to the performance value of each transformer; Install the sample transformer of each detection target into a test circuit that has a requirement to convert the primary side current or voltage into the secondary side current or voltage, and obtain the secondary side current or voltage value of the sample transformer of each detection target; Determine whether the secondary-side current or voltage value of the sample transformer of each detection target meets the threshold value of the secondary-side current or voltage. When the threshold value of the secondary-side current or voltage is met, determine that the sample transformer of the corresponding detection target is a sample transformer of the detection target with qualified quality; According to the ratio of the number of sample transformers of the test target with qualified quality to the number of transformers produced in batches, the quality of the batch of transformers produced in the batch where the sample transformers of the test target belong is evaluated.

9. The monitoring method based on the power metering smart laboratory according to claim 8 is characterized in that: The method of calculating the performance value of each transformer in the batch-produced transformers by using the operating parameters of the transformer production equipment corresponding to each transformer, and selecting a plurality of sample transformers of the detection target according to the performance value of each transformer, comprises: Identify the production number of the transformer and determine the production sequence of the transformers in batch production Collect the operating parameters of the transformer production equipment during the production process of mass-produced transformers Among them, the operating parameters of the transformer production equipment include: the operating power of the transformer production equipment and the production frequency of the transformer production equipment The operating parameters of the transformer production equipment corresponding to each transformer in the batch production are determined by the number of transformers produced in batches. The performance value X of each transformer in the batch production is calculated using the operating parameters of the transformer production equipment corresponding to each transformer. Sample transformers of multiple detection targets are selected according to the performance value of each transformer.

10. A computing device comprising a processor, a memory, a communication interface and a communication bus, characterized in that: The processor, the memory and the communication interface communicate with each other via the communication bus; The memory is used to store at least one executable instruction, and the executable instruction enables the processor to perform operations corresponding to the monitoring method based on the power metering smart laboratory as described in claim 8 or 9.

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