Remote sensing method and system for operation state of primary and secondary integrated ring network box

Abstract

The present application relates to the technical field of measuring electric variable, in particular to a kind of primary and secondary fusion integrated ring network box operating state remote sensing method and system, comprising: according to the running data of each moment in the initial time period of primary equipment, determine the interference time period of primary equipment in initial time period;The running data section of secondary equipment is determined in the running data of secondary equipment using the interference time period of primary equipment;According to the data difference of preset target data section and running data section, determine the data recovery delay degree, if it is greater than preset data recovery delay threshold, the time period corresponding to running data section is determined as candidate interference time period;According to the electromagnetic response of each running data in candidate interference time period, determine target interference time period;The running data of primary equipment and secondary equipment in target interference time period is transmitted to primary and secondary fusion integrated ring network box.The present application effectively improves the sensing efficiency of abnormal information.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of measuring electrical variables, and in particular to a method and system for remotely sensing the operating state of a primary and secondary integrated ring network box. BACKGROUND

[0002] The primary and secondary integrated ring network box integrates primary equipment and secondary equipment of a power system, and is a power device that organically integrates high-voltage primary equipment (such as circuit breakers, disconnectors, etc.) and secondary equipment (such as measurement, control, protection, devices, etc.). With the development of technology, the primary and secondary integrated ring network box will develop in the direction of more intelligence, miniaturization and high efficiency. By using sensors as secondary equipment to measure voltage, current and other data, the primary and secondary integrated ring network box is more easily realized to be highly integrated due to the small size, easy installation, and higher sampling accuracy and frequency of the sensors compared to using a mutual inductor for measurement.

[0003] At present, the general process of remotely sensing the operating state of the primary and secondary integrated ring network box is as follows: first, sensing and collecting analog signals of the primary equipment and the secondary equipment, then digitizing the analog signals of the primary equipment and the secondary equipment to form multi-dimensional operating data, secondly, fusing and analyzing the multi-dimensional operating data by the processor and algorithm built-in the primary and secondary integrated ring network box, and driving the terminal to make decisions and execute, and finally, the intelligent terminal uploads all processed data (including raw data, event records, fault recording, analysis results, etc.) to the remote master station or cloud platform through 4G / 5G, optical fiber and other Internet of Things technologies, so that the user located remotely can remotely sense. However, in the process of use, the data volume of the multi-dimensional operating data that needs to be fused and analyzed is extremely large, which makes it difficult for the user located remotely to find abnormal information in the operating data when remotely sensing the operating state of the primary and secondary integrated ring network box. SUMMARY

[0004] In order to solve the technical problem that it is difficult to find abnormal information in the operating data when remotely sensing the operating state of the primary and secondary integrated ring network box, the purpose of the present application is to provide a method for remotely sensing the operating state of the primary and secondary integrated ring network box, and the technical solution adopted is as follows:

[0005] According to the operating data of the primary equipment at each time in the initial time period, the disturbance time period of the primary equipment in the initial time period is determined; wherein the initial time period of the primary equipment is determined according to the opening operation of the primary equipment;

[0006] The operating data segment of the secondary equipment is determined in the operating data of the secondary equipment by using the primary equipment disturbance time period;

[0007] According to the data difference between the preset target data segment and the running data segment of the secondary equipment, a data recovery delay degree is determined; in the case that the data recovery delay degree is greater than a preset data recovery delay threshold, a time segment corresponding to the running data segment of the secondary equipment is determined as a candidate interference time segment of the secondary equipment;

[0008] According to the electromagnetic response of each running data in the candidate interference time segment of the secondary equipment, a target interference time segment of the secondary equipment is determined in the candidate interference time segment of the secondary equipment;

[0009] The running data of the primary equipment and the secondary equipment in the target interference time segment of the secondary equipment is transmitted to a primary-secondary fusion ring network box.

[0010] Preferably, according to the running data of each time in the initial time segment of the primary equipment, the interference time segment of the primary equipment in the initial time segment is determined, comprising:

[0011] For the jth time in the ith initial time segment, according to the current value and voltage value before the jth time in the ith initial time segment and the sequence number of the jth time in the ith initial time segment, the electromagnetic interference duration at the jth time is determined;

[0012] In the case that the electromagnetic interference duration at the jth time is greater than a preset electromagnetic interference duration threshold, the jth time is determined as the interference time segment of the primary equipment.

[0013] Preferably, for the jth time in the ith initial time segment, according to the current value and voltage value before the jth time in the ith initial time segment and the sequence number of the jth time in the ith initial time segment, the electromagnetic interference duration at the jth time is determined, comprising:

[0014] For the jth time in the ith initial time segment, according to the current value and voltage value before the jth time in the ith initial time segment, the current mean value and voltage mean value corresponding to the jth time are determined;

[0015] According to the current mean value and voltage mean value corresponding to the jth time, the electromagnetic interference intensity generated by the primary equipment at the jth time is calculated;

[0016] According to the sequence number of the jth time in the ith initial time segment and the electromagnetic interference intensity generated by the primary equipment at the jth time, the electromagnetic interference duration at the jth time is determined.

[0017] Preferably, according to the current mean value and voltage mean value corresponding to the jth time, the electromagnetic interference intensity generated by the primary equipment at the jth time is calculated, comprising:

[0018] determine the electromagnetic interference coefficient according to the variance of the current increment amount before the jth moment and the variance of the voltage increment amount before the jth moment;

[0019] Calculate the electromagnetic interference coefficient, the current mean value corresponding to the jth moment and the voltage mean value corresponding to the jth moment to obtain the electromagnetic interference intensity generated by the next device at the jth moment.

[0020] Preferably, the determination method of the preset target data segment comprises:

[0021] Divide t running data before and after the running data segment of the pth secondary device to obtain the pre-target data segment and the post-target data segment corresponding to the running data segment of the pth secondary device, and determine the pre-target data segment and the post-target data segment as the preset target data segment.

[0022] Preferably, the data recovery delay degree is determined according to the data difference between the preset target data segment and the running data segment of the secondary device, comprising:

[0023] According to the length of the preset target data segment, the running data segment of the pth secondary device is mapped to obtain the mapping data segment of the pth secondary device;

[0024] According to the data difference between the mapping data segment of the pth secondary device and each data in the pre-target data segment, and the data difference between the mapping data segment of the pth secondary device and the post-target data segment, the data recovery delay degree is determined.

[0025] Preferably, according to the length of the preset target data segment, the running data segment of the pth secondary device is mapped to obtain the mapping data segment of the pth secondary device, comprising:

[0026] According to the length of the preset target data segment and the length of the running data segment of the pth secondary device, the data merging times of the running data segment of the pth secondary device are determined;

[0027] The running data segment of the pth secondary device is merged by using the data merging times to obtain the mapping data segment of the pth secondary device.

[0028] Preferably, the running data segment of the pth secondary device is merged by using the data merging times to obtain the mapping data segment of the pth secondary device, comprising:

[0029] Calculate the data difference value between each adjacent data in the running data segment of the pth secondary device, and arrange the data difference value in ascending order to obtain a difference value queue;

[0030] The target difference value is screened out in the difference value queue according to the number of mergings, and the data corresponding to the target difference value is merged to obtain the mapping data segment of the pth secondary device.

[0031] Preferably, the target interference time period of the secondary device is determined in the candidate interference time period of the secondary device according to the electromagnetic response of each operation data in the candidate interference time period of the secondary device, and the target interference time period of the secondary device is determined in the candidate interference time period of the secondary device.

[0032] The unmerged data after the last merged data in the mapping data segment corresponding to the candidate interference time period of the pth secondary device is subjected to mean value calculation to obtain a first mean value;

[0033] The number of unmerged data after each merged data in the mapping data segment of the pth secondary device is subjected to summation operation to obtain a total number;

[0034] The first mean value and the total number are subjected to ratio calculation to obtain the electromagnetic response of the pth secondary device.

[0035] In the case that the electromagnetic response of the pth secondary device is less than a preset electromagnetic response threshold, the candidate interference time period of the pth secondary device is determined as the target interference time period of the secondary device.

[0036] The application further provides a remote sensing system for the operation state of a primary-secondary fusion integrated ring network box, which comprises:

[0037] The first screening module is used to determine the interference time period of the primary device in the initial time period of the primary device according to the operation data of each time in the initial time period of the primary device, wherein the initial time period of the primary device is determined according to the opening operation of the primary device.

[0038] The analysis module is used to determine the operation data segment of the secondary device in the operation data of the secondary device by using the interference time period of the primary device.

[0039] The determination module is used to determine the data recovery delay degree according to the data difference between the preset target data segment and the operation data segment of the secondary device.

[0040] The response module is used to determine the candidate interference time period of the secondary device in the time period corresponding to the operation data segment of the secondary device in the case that the data recovery delay degree is greater than a preset data recovery delay threshold.

[0041] The second screening module is used to determine the target interference time period of the secondary device in the candidate interference time period of the secondary device according to the electromagnetic response of each operation data in the candidate interference time period of the secondary device.

[0042] The transmission module is configured to transmit the operation data of the primary equipment and the secondary equipment within the target interference time period of the secondary equipment to the primary-secondary fusion integrated ring network box.

[0043] The present application has the following advantages:

[0044] According to the operation data of the primary equipment at each time in the initial time period, the interference time period of the primary equipment in the initial time period is determined; wherein, the initial time period of the primary equipment is determined according to the opening operation of the primary equipment; the operation data segment of the secondary equipment is determined in the operation data of the secondary equipment by using the interference time period of the primary equipment; according to the data difference between the preset target data segment and the operation data segment of the secondary equipment, the data recovery delay degree is determined; in the case that the data recovery delay degree is greater than the preset data recovery delay threshold, the time period corresponding to the operation data segment of the secondary equipment is determined as the candidate interference time period of the secondary equipment; according to the electromagnetic response of each operation data in the candidate interference time period of the secondary equipment, the target interference time period of the secondary equipment is determined in the candidate interference time period of the secondary equipment; the operation data of the primary equipment and the secondary equipment within the target interference time period of the secondary equipment is transmitted to the primary-secondary fusion integrated ring network box. As can be seen, by analyzing the electromagnetic response of the operation data of the secondary equipment to the electromagnetic interference caused by the opening operation, the target interference time period of the secondary equipment is determined, so that the operation data of the abnormal time period (i.e. the target interference time period) is screened out and uploaded to the primary-secondary fusion integrated ring network box, the accuracy of abnormal information extraction is improved, and the perception efficiency of abnormal information is improved. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art and the advantages thereof, a brief introduction will be given to the drawings needed in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0046] Figure 1 The method flow chart of the operation state remote perception method of the primary-secondary fusion integrated ring network box provided by an embodiment of the present application;

[0047] Figure 2 The specific flowchart of step S110 in the operation state remote perception method of the primary-secondary fusion integrated ring network box provided by an embodiment of the present application;

[0048] Figure 3 The specific flowchart of step S130 in the operation state remote perception method of the primary-secondary fusion integrated ring network box provided by an embodiment of the present application;

[0049] Figure 4 This is a schematic diagram of a remote sensing system for the operating status of a primary and secondary integrated ring network box, provided in one embodiment of the present invention. Detailed Implementation

[0050] To further illustrate the technical means and effects adopted by the present invention to achieve its intended purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation, structure, features, and effects of a remote sensing method and system for the operation status of a primary and secondary integrated ring network enclosure proposed according to the present invention. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0052] The following description, in conjunction with the accompanying drawings, details the specific scheme of the remote sensing method and system for the operation status of a primary and secondary integrated ring network box provided by the present invention.

[0053] Please see Figure 1 This document illustrates a flowchart of a method for remotely sensing the operational status of a primary and secondary integrated ring network enclosure according to an embodiment of the present invention. In an exemplary embodiment, a method for remotely sensing the operational status of a primary and secondary integrated ring network enclosure is provided, comprising:

[0054] S110. Based on the operating data of each moment in the initial time period of the primary equipment, determine the interference time period of the primary equipment in the initial time period; wherein, the initial time period of the primary equipment is determined based on the tripping operation of the primary equipment;

[0055] S120. Utilize the interference time period of the primary equipment to determine the operating data segment of the secondary equipment in the operating data of the secondary equipment;

[0056] S130. Determine the data recovery delay level based on the data difference between the preset target data segment and the operating data segment of the secondary equipment;

[0057] S140. When the data recovery delay exceeds the preset data recovery delay threshold, the time period corresponding to the operating data segment of the secondary equipment is determined as the alternative interference time period of the secondary equipment.

[0058] S150. Based on the electromagnetic response of each operating data in the alternative interference time period of the secondary equipment, determine the target interference time period of the secondary equipment in the alternative interference time period of the secondary equipment.

[0059] S160, transmit the running data of the primary equipment and the secondary equipment in the target interference time period of the secondary equipment to the primary and secondary fusion integrated ring network box.

[0060] In step S110, the running data is stored in the data storage library built in the primary and secondary fusion integrated ring network box. Specifically, the running data of the primary equipment in multiple dimensions (such as current, voltage data, etc.) is recorded from the data storage library built in the primary and secondary fusion integrated ring network box at a frequency of 1 time per second, and the running data of the secondary equipment in multiple dimensions (such as active power, reactive power, power factor, etc.).

[0061] The data of the opening and closing operation is marked in the database. The opening and closing operation includes opening the gate and closing the gate. Specifically, the time point of the primary equipment when performing the opening and closing operation each time is taken as a boundary point, and the time period of the recorded data according to the boundary point is divided to obtain a plurality of initial time periods. That is, each opening and closing operation corresponds to an initial time period. The primary equipment interference time period refers to the time period during which the primary equipment generates obvious electromagnetic interference energy after each opening and closing operation.

[0062] The electromagnetic transient process generated by the primary equipment when performing the opening and closing operation in the primary and secondary fusion integrated ring network box forms strong electromagnetic interference, but since the actual mechanical operation, i.e., the opening and closing operation, has been completed (opening the gate and closing the gate), the strong electromagnetic interference does not affect the actual physical position of the gate, and the electrical energy expression information of the primary equipment itself has been truly changed. In addition, the current and voltage monitored by the primary equipment itself are strong main circuit energy. Even if the electromagnetic interference energy is large, it is still very small compared to the main circuit energy (the core task of the primary equipment is energy transmission, and its running data is a macroscopic physical phenomenon, which naturally has high resistance to electronic interference). In summary, the electromagnetic interference formed by the opening and closing of the primary equipment does not significantly interfere with the running data detected by the primary equipment in various dimensions.

[0063] The core task of the secondary equipment is information processing, which processes weak signals, and the energy contained therein is not much different from the electromagnetic interference energy, so the running data detected by the secondary equipment in various dimensions is easily affected by electromagnetic interference. The intensity of the electromagnetic interference generated by the primary equipment when performing different opening and closing operations is directly affected by the transmission of electrical energy in the primary equipment, so the primary equipment may generate electromagnetic interference of different intensities when performing different opening and closing operations. These electromagnetic interferences of different intensities will have different degrees of continuous influence on the running data of the secondary equipment, forming different interference ranges. Therefore, the running data of the primary equipment can be analyzed first to determine the interference time period.

[0064] Preferably, as shown in the figure, step S110 comprises: S1110, determining the electromagnetic interference duration at the jth moment in the ith initial time period according to the current value and the voltage value before the jth moment in the ith initial time period and the serial number of the jth moment in the ith initial time period; S1120, determining the jth moment as the interference time period of the device in the case where the electromagnetic interference duration at the jth moment is greater than the preset electromagnetic interference duration threshold. The preset electromagnetic interference duration threshold is set according to the actual situation, which is not limited here. Figure 2

[0065] Exemplarily, the opening and closing operation will cause the contact separation and communication, and the mechanical changes of the two contacts will physically change the current flow path, cause the current to change abruptly and generate an arc. The arc itself as a high-frequency noise source, the unstable process of its extinction will excite high-frequency electromagnetic interference. When the current changes abruptly, it will induce a very high overvoltage (surge) on the system inductance to form a conducted interference, and then generate electromagnetic interference phenomenon. As can be seen, the electromagnetic interference phenomenon and the arc, the magnetic field strength are positively related (positive correlation), in the actual scene, the influence relationship between voltage level and arc energy is positive (positive correlation), the influence relationship between current level and magnetic field strength is positive (positive correlation). Therefore, the electromagnetic interference duration is determined by analyzing the current value and the voltage value.

[0066] Preferably, step S1110 comprises: determining the current average and the voltage average corresponding to the jth moment in the ith initial time period according to the current value and the voltage value before the jth moment in the ith initial time period; calculating the electromagnetic interference intensity generated by the device at the jth moment according to the current average and the voltage average corresponding to the jth moment; determining the electromagnetic interference duration at the jth moment according to the serial number of the jth moment in the ith initial time period and the electromagnetic interference intensity generated by the device at the jth moment.

[0067] Optionally, the electromagnetic interference intensity generated by the device at the jth moment is calculated according to the current average and the voltage average corresponding to the jth moment, comprising: determining the electromagnetic interference coefficient according to the variance of the current increment amount before the jth moment and the variance of the voltage increment amount before the jth moment; calculating the electromagnetic interference coefficient, the current average and the voltage average corresponding to the jth moment to obtain the electromagnetic interference intensity generated by the device at the jth moment.

[0068] ​Specifically, the electromagnetic interference duration degree at each time in the initial time period needs to be calculated to determine whether the time is the interference time period of the primary equipment. In this embodiment, the jth time in the ith initial time period is taken as an example for description. First, the current value of the device on one side before the jth time in the ith initial time period is subjected to mean value calculation to obtain a current mean value, and the voltage value of the device on one side before the jth time in the ith initial time period is subjected to mean value calculation to obtain a voltage mean value. Then, the current increment amount and the voltage increment amount before the adjacent time in the 0th second-jth time are determined, and the obtained current increment amounts are subjected to variance calculation to obtain the variance of the current increment amount, and the obtained voltage increment amounts are subjected to variance calculation to obtain the variance of the voltage increment amount.

[0069] The calculation formula of the electromagnetic interference coefficient is as follows:

[0070]

[0071] wherein, denotes the electromagnetic interference coefficient, denotes the variance of the current increment amount, denotes the variance of the voltage increment amount, and norm denotes a normalization function.

[0072] The calculation formula of the electromagnetic interference strength generated by the primary equipment is as follows:

[0073]

[0074] wherein, denotes the electromagnetic interference strength generated by the primary equipment, denotes the current mean value, denotes the voltage mean value. It should be noted that the greater the electromagnetic interference strength, the greater the overall content of the electric energy before the time, the more obvious the positive change of the electric field and the magnetic field formed by the current and the voltage, the more high-frequency components radiated, and the stronger the electromagnetic intensity at the time.

[0075] The calculation formula of the electromagnetic interference duration degree is as follows:

[0076]

[0077] wherein, denotes the electromagnetic interference duration degree, denotes the serial number of the jth time in the ith initial time period, denotes the number of times contained in the ith initial time period. It should be noted that the greater the electromagnetic interference duration degree, the more electromagnetic interference energy and the longer the duration effect when the primary equipment continuously operates to the time after the corresponding opening and closing operation.

[0078] Further, after determining the electromagnetic interference persistence degree at the jth moment, the electromagnetic interference persistence degree is compared with a preset electromagnetic interference persistence threshold (for example, 0.65). If the electromagnetic interference persistence degree is greater than the preset electromagnetic interference persistence threshold, the jth moment is determined as the interference time period of the primary device. If the electromagnetic interference persistence degree is not greater than the preset electromagnetic interference persistence threshold, the jth moment is determined as the normal time period of the primary device.

[0079] In step S120, exemplarily, the secondary device is a device used to monitor the running state of the primary device, and can capture electromagnetic signals expressed by the primary device, convert data through an electrical signal converter built in the secondary device, and complete display of various data of the secondary device. Therefore, when the primary device is subjected to electromagnetic interference, the various data finally displayed by the secondary device will also be affected by electromagnetic interference energy, so that the various data finally displayed by the secondary device are distorted to a certain extent. Moreover, electromagnetic interference energy generated by the primary device will be coupled into the secondary device through a certain space path, and in this process, part of the electromagnetic interference energy will be wasted, so that the actual interference time period of the secondary device subjected to obvious electromagnetic interference of the primary device is shorter than the interference time period of the primary device subjected to obvious electromagnetic interference. Then, the actual interference time period (i.e., the target interference time period) of the secondary device can be further divided in the interference time period of the primary device by analyzing the coupling absorption amount of the electromagnetic interference energy generated by the primary device by the secondary device. Specifically, the running data corresponding to the interference time period of each primary device is obtained from the running data of the secondary device, and is taken as a running data segment of the secondary device, so that a plurality of running data segments of the secondary device can be obtained.

[0080] In step S130, exemplarily, under normal circumstances, after electromagnetic interference energy of the primary device ends (or energy intensity obviously decays below a certain threshold), the running data of the secondary device after the corresponding time range will usually show a phenomenon of obvious recovery of normal change, but if the secondary device itself has a certain data abnormality, the phenomenon of recovery of normal change will be delayed or even no longer appear. Therefore, by judging the data recovery delay degree of the running data segment of the secondary device, the target interference time period of the secondary device can be determined.

[0081] The preset target data segment determination method includes: dividing t running data before and after the running data segment of the pth secondary device to obtain a preposed target data segment and a postposed target data segment corresponding to the running data segment of the pth secondary device, and determining the preposed target data segment and the postposed target data segment as the preset target data segment.

[0082] Specifically, t is a preset value, t should be less than the length of the running data segment of the secondary device, which is not limited here. The length of the preceding target data segment and the length of the following target data segment are the same. It should be noted that the running data type of the preceding target data segment and the following target data segment is determined. If there are no t running data before the running data segment of the pth secondary device, the running data of the pth secondary device which is the same as the running data type of the preceding target data segment is added to the preceding target data segment. If there are no t running data after the running data segment of the pth secondary device, the running data of the pth secondary device which is the same as the running data type of the following target data segment is added to the following target data segment.

[0083] Preferably, as shown in the figure, step S130 includes: S1310, mapping the running data segment of the pth secondary device according to the length of the preset target data segment to obtain the mapping data segment of the pth secondary device; S1320, determining the data recovery delay degree according to the data difference between each data in the mapping data segment of the pth secondary device and the preceding target data segment, and the data difference between the mapping data segment of the pth secondary device and the following target data segment. Figure 3

[0084] Exemplarily, since there is usually a certain amount of data difference between the running data segment of the secondary device and the normal data expression, in order to more accurately analyze the difference between the running data segment of the secondary device and the normal data change expression state, a certain amount of quantity mapping can be performed on the running data segment of the secondary device, so that the running data segment of the secondary device and the two adjacent preceding target data segment and following target data segment are consistent in data quantity, and the accuracy of the final analysis result is higher.

[0085] Optionally, S1310 includes: determining the data merging times of the running data segment of the pth secondary device according to the length of the preset target data segment and the length of the running data segment of the pth secondary device; and performing merging processing on the running data segment of the pth secondary device by using the data merging times to obtain the mapping data segment of the pth secondary device.

[0086] Exemplarily, the merging processing on the running data segment of the pth secondary device by using the data merging times to obtain the mapping data segment of the pth secondary device includes: calculating the data difference between each adjacent data in the running data segment of the pth secondary device, and arranging the data difference in ascending order to obtain a difference queue; selecting a target difference value in the difference queue according to the merging times, and merging the data corresponding to the target difference value to obtain the mapping data segment of the pth secondary device.

[0087] ​Specifically, taking the secondary device's operating data segment {1, 14, 17, 23, 16, 8, 4} as an example, the lengths of the preceding and following target data segments are both 4. At this point, the differences between adjacent operating data are 14-1=13, 17-14=3, 23-17=6, 23-16=7, 16-8=8, 8-4=4. Sort these differences in ascending order as follows: 17-14=3, 8-4=4, 23-17=6, 23-16=7, 16-8=8, 14-1=13. However, the lengths of the secondary device's operating data segment differ by 3 from the lengths of the preceding and following target data segments, indicating that the secondary device's operating data segment needs to be merged three times. The first three differences are selected from the difference sorting. The data corresponding to the first three differences are merged. First, 14 and 17 are merged, and the merged value is (17+14) / 2=15.5. Then, 8 and 4 are merged, and the merged value is (8+4) / 2=6. Finally, 23 and 17 are merged. Note that 17 no longer exists after the first merge, so 17 is selected to refer to the merged value of 15.5 for calculation. The merged value is (17+15.5) / 2=16.25. Therefore, the final mapping data segment of the secondary device is {1, 16.25, 16, 6}.

[0088] Furthermore, the data differences between the mapped data segment of the p-th secondary device and each data in the preceding target data segment, as well as the data differences between the mapped data segment of the p-th secondary device and the following target data segment, are summed to obtain the data recovery delay level.

[0089] Specifically, the formula for calculating the data recovery delay is as follows:

[0090]

[0091] in, Indicates the degree of data recovery delay. This indicates the amount of running data contained in the mapping data segment, the preceding target data segment, and the following target data segment of the secondary device (the data lengths of the three segments are the same). The mapping data segment of the secondary device represents the first... One set of running data, Indicates the first segment of the preceding target data segment One set of running data, This indicates the first [number]th [item] in the subsequent target data segment. This refers to the operational data. It should be noted that a greater delay in data recovery indicates a slower recovery speed of data within the operational data segment of the secondary device, reflecting a higher probability that the secondary device itself is malfunctioning after the electromagnetic interference subsides within the corresponding time frame.

[0092] In step S140, the preset data recovery delay threshold is set according to actual conditions, which is not limited herein. For example, the preset data recovery delay threshold is 0.6. Specifically, if the data recovery delay degree is greater than the preset data recovery delay threshold, the time period corresponding to the running data segment of the secondary device is determined as the candidate interference time period of the secondary device; if the data recovery delay degree is not greater than the preset data recovery delay threshold, the running data segment is not processed.

[0093] In step S150, the state change of the secondary device running data may have a critical situation, i.e., the data is temporarily abnormal after the electromagnetic interference disappears and then recovers to normal. The critical situation is easy to blur the real abnormal characteristics, therefore, the candidate interference time period of the secondary device needs to be further judged for electromagnetic response.

[0094] Preferably, step S150 includes: S1510, performing mean value calculation on the uncombined data after the last combined data in the mapping data segment corresponding to the candidate interference time period of the pth secondary device to obtain a first mean value; S1520, performing summation operation on the number of uncombined data after each combined data in the mapping data segment of the pth secondary device to obtain a total number; S1530, performing ratio calculation on the first mean value and the total number to obtain the electromagnetic response of the pth secondary device; S1540, in the case that the electromagnetic response of the pth secondary device is less than a preset electromagnetic response threshold, determining the candidate interference time period of the pth secondary device as the target interference time period of the secondary device. The preset electromagnetic response threshold is set according to actual conditions, which is not limited herein. For example, 0.3.

[0095] Specifically, the calculation formula of the electromagnetic response of the pth secondary device is as follows:

[0096]

[0097] wherein, represents the electromagnetic response, represents the first mean value, represents the total number, represents the total number of uncombined data in the mapping data segment, represents the mth uncombined data.

[0098] Further, the electromagnetic response of the pth secondary device is compared with the preset electromagnetic response threshold, if the electromagnetic response of the pth secondary device is less than the preset electromagnetic response threshold, the candidate interference time period of the pth secondary device is determined as the target interference time period of the secondary device. If the electromagnetic response of the pth secondary device is not less than the preset electromagnetic response threshold, the candidate interference time period of the pth secondary device is not processed.

[0099] In step S160, the running data of the primary equipment and the secondary equipment in each dimension in the target interference time period of the secondary equipment is transmitted to the processor built in the primary and secondary fusion complete ring network box, to help the user at a remote location to find abnormal data, and then the processor and algorithm built in the primary and secondary fusion complete ring network box are used for fusion analysis, and the terminal is driven to make a decision and execute; then the intelligent terminal uploads all the processed data (including original data, event record, fault recording, analysis result, etc.) to the remote host station or cloud platform through 4G / 5G, optical fiber and other Internet of Things technologies, for remote sensing monitoring by the user at a remote location.

[0100] It can be seen that, before the multi-dimensional running data is subjected to data fusion, the electromagnetic response of the running data of the secondary equipment to the electromagnetic interference generated by the opening operation is analyzed, the target interference time period of the secondary equipment is determined, and the running data of the abnormal time period (i.e. the target interference time period) is uploaded to the primary and secondary fusion complete ring network box, thereby reducing the amount of data subjected to data fusion, reducing the data retrieval burden of the remote user when performing remote sensing, improving the accuracy of abnormal information extraction, improving the sensing efficiency of abnormal information, reducing the possibility of triggering false protection signals, and reducing the damage of the primary and secondary fusion complete ring network box.

[0101] Referring to Figure 4 , a schematic diagram of a running state remote sensing system of a primary and secondary fusion complete ring network box is shown, in an example embodiment, a running state remote sensing system of a primary and secondary fusion complete ring network box is provided, comprising:

[0102] The first screening module 410 is configured to determine a primary equipment interference time period in the initial time period of the primary equipment according to the running data at each time in the initial time period of the primary equipment; wherein the initial time period of the primary equipment is determined according to the opening operation of the primary equipment;

[0103] The analysis module 420 is configured to determine a running data segment of the secondary equipment from the running data of the secondary equipment by using the primary equipment interference time period;

[0104] The determination module 430 is configured to determine a data recovery delay degree according to a preset target data segment and a data difference between the running data segment of the secondary equipment;

[0105] The response module 440 is configured to determine a candidate interference time period of the secondary equipment corresponding to the running data segment of the secondary equipment when the data recovery delay degree is greater than a preset data recovery delay threshold;

[0106] The second screening module 450 is configured to determine the target interference time period of the secondary device in the candidate interference time period of the secondary device according to the electromagnetic response of each operation data in the candidate interference time period of the secondary device.

[0107] The transmission module 460 is configured to transmit the operation data of the primary device and the secondary device in the target interference time period of the secondary device to the primary and secondary fusion ring network box.

[0108] In other embodiments, a computer program product is also provided, which, when running on a computer, causes the computer to execute the above-mentioned related steps to implement the operation state remote sensing method and system of the primary and secondary fusion ring network box provided by the above-mentioned embodiments.

[0109] In other embodiments, a computer readable storage medium is also provided, which stores computer program code, and when the computer program code runs on a computer, causes the computer to execute the above-mentioned related method steps to implement the operation state remote sensing method and system of the primary and secondary fusion ring network box provided by the above-mentioned embodiments.

[0110] Among them, the system, device, computer program product, computer readable storage medium provided are used to execute the corresponding method provided above, so the beneficial effects that can be achieved are referred to the beneficial effects of the corresponding method provided above, which will not be repeated here.

[0111] It should be noted that: the above-mentioned sequence of the embodiments of the present application is only for description, not representing the advantages and disadvantages of the embodiments. The processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multi-task processing and parallel processing are also possible or may be advantageous.

[0112] Each embodiment in the specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other. Each embodiment focuses on the difference from other embodiments.

Claims

1. A method for remotely sensing the operating state of a primary-secondary integrated ring network box, characterized in that, The method comprises: According to the operation data of each time in the initial time period of the primary equipment, determine the interference time period of the primary equipment in the initial time period; wherein the initial time period of the primary equipment is determined according to the switching-off operation of the primary equipment; Determine the operation data segment of the secondary equipment in the operation data of the secondary equipment by using the interference time period of the primary equipment; According to the data difference between the preset target data segment and the operation data segment of the secondary equipment, perform merging processing on the operation data segment of the secondary equipment to determine the data recovery delay degree; in the case that the data recovery delay degree is greater than the preset data recovery delay threshold, determine the time period corresponding to the operation data segment of the secondary equipment as the candidate interference time period of the secondary equipment; According to the electromagnetic response of each operation data in the candidate interference time period of the secondary equipment, determine the target interference time period of the secondary equipment in the candidate interference time period of the secondary equipment, specifically comprising: Perform mean value calculation on the unmerged data after the last merged data in the mapping data segment corresponding to the candidate interference time period of the pth secondary equipment to obtain a first mean value; Perform summation operation on the number of unmerged data after each merged data in the mapping data segment of the pth secondary equipment to obtain a total number; Perform ratio calculation on the first mean value and the total number to obtain the electromagnetic response of the pth secondary equipment; In the case that the electromagnetic response of the pth secondary equipment is less than a preset electromagnetic response threshold, determine the candidate interference time period of the pth secondary equipment as the target interference time period of the secondary equipment; Transmit the operation data of the primary equipment and the secondary equipment in the target interference time period of the secondary equipment to a primary and secondary fusion integrated ring network box.

2. The method for remote sensing of the operating state of a primary / secondary hybrid ring network cabinet according to claim 1, characterized in that, According to the operation data of each time in the initial time period of the primary equipment, determine the interference time period of the primary equipment in the initial time period, comprising: For the jth time in the ith initial time period, determine the electromagnetic interference duration at the jth time according to the current value and voltage value before the jth time in the ith initial time period and the serial number of the jth time in the ith initial time period; In the case that the electromagnetic interference duration at the jth time is greater than a preset electromagnetic interference duration threshold, determine the jth time as the interference time period of the primary equipment; wherein i and j are positive integers.

3. The method for remote sensing of the operating state of a primary / secondary integrated ring main unit according to claim 2, characterized in that, For the jth time in the ith initial time period, determine the electromagnetic interference duration at the jth time according to the current value and voltage value before the jth time in the ith initial time period and the serial number of the jth time in the ith initial time period, comprising: For the jth time in the ith initial time period, determine the current mean value and voltage mean value corresponding to the jth time according to the current value and voltage value before the jth time in the ith initial time period; According to the current mean value and voltage mean value corresponding to the jth time, calculate the electromagnetic interference intensity generated by the primary equipment at the jth time; According to the serial number of the jth time in the ith initial time period and the electromagnetic interference intensity generated by the primary equipment at the jth time, determine the electromagnetic interference duration at the jth time.

4. The method for remote sensing of the operating state of a primary / secondary integrated ring main unit according to claim 3, characterized in that, According to the current average and the voltage average corresponding to the jth moment, the electromagnetic interference intensity generated by the next device at the jth moment is calculated, including: According to the variance of the current increment amount before the jth moment and the variance of the voltage increment amount before the jth moment, the electromagnetic interference coefficient is determined; The electromagnetic interference coefficient, the current average and the voltage average corresponding to the jth moment are calculated to obtain the electromagnetic interference intensity generated by the next device at the jth moment.

5. The method for remote sensing of the operating state of a primary / secondary integrated ring main unit according to claim 1, characterized in that, The determination method of the preset target data segment includes: Before and after the running data segment of the pth secondary device, t running data are divided to obtain the pre-target data segment and the post-target data segment corresponding to the running data segment of the pth secondary device, and the pre-target data segment and the post-target data segment are determined as the preset target data segment; wherein p and t are positive integers.

6. The method for remote sensing of the operating state of a primary / secondary integrated ring main unit according to claim 5, characterized in that, According to the data difference between the preset target data segment and the running data segment of the secondary device, the data recovery delay degree is determined, including: According to the length of the preset target data segment, the running data segment of the pth secondary device is mapped to obtain the mapping data segment of the pth secondary device; According to the data difference between the mapping data segment of the pth secondary device and each data in the pre-target data segment, and the data difference between the mapping data segment of the pth secondary device and the post-target data segment, the data recovery delay degree is determined.

7. The method for remote sensing of the operating state of a primary / secondary hybrid ring network cabinet according to claim 6, characterized in that, According to the length of the preset target data segment, the running data segment of the pth secondary device is mapped to obtain the mapping data segment of the pth secondary device, including: According to the length of the preset target data segment and the length of the running data segment of the pth secondary device, the data merging times of the running data segment of the pth secondary device are determined; The running data segment of the pth secondary device is merged by using the data merging times to obtain the mapping data segment of the pth secondary device.

8. The method for remote sensing of the operating state of a primary / secondary hybrid ring network cabinet according to claim 7, characterized in that, The running data segment of the pth secondary device is merged by using the data merging times to obtain the mapping data segment of the pth secondary device, including: The data difference between each adjacent data in the running data segment of the pth secondary device is calculated, and the data difference is arranged in ascending order to obtain a difference queue; According to the merging times, the target difference value is screened out in the difference queue, and the data corresponding to the target difference value is merged to obtain the mapping data segment of the pth secondary device.

9. A remote sensing system for the operating state of a primary-secondary hybrid ring network cabinet, characterized in that The system includes: The first screening module is configured to determine the interference time period of the primary device in the initial time period of the primary device according to the running data of each moment in the initial time period of the primary device; wherein the initial time period of the primary device is determined according to the switching operation of the primary device; The analysis module is configured to determine the running data segment of the secondary device in the running data of the secondary device by using the interference time period of the primary device; The determination module is configured to merge the running data segment of the secondary device according to the data difference between the preset target data segment and the running data segment of the secondary device, and determine the data recovery delay degree; The response module is configured to determine the time period corresponding to the running data segment of the secondary device as the candidate interference time period of the secondary device when the data recovery delay degree is greater than the preset data recovery delay threshold. The second screening module is configured to determine a target interference time period of the secondary equipment from the candidate interference time period of the secondary equipment according to electromagnetic response conditions of each operation data in the candidate interference time period of the secondary equipment; The second screening module is specifically configured to: perform mean value calculation on the uncombined data after the last combined data in the mapping data segment corresponding to the candidate interference time period of the pth secondary equipment to obtain a first mean value; perform summation operation on the number of uncombined data after each combined data in the mapping data segment of the pth secondary equipment to obtain a total number sum; perform ratio calculation on the first mean value and the total number sum to obtain an electromagnetic response condition of the pth secondary equipment; in a case where the electromagnetic response condition of the pth secondary equipment is less than a preset electromagnetic response threshold, determine the candidate interference time period of the pth secondary equipment as the target interference time period of the secondary equipment; The transmission module is configured to transmit the operation data of the primary equipment and the secondary equipment in the target interference time period of the secondary equipment to a primary and secondary fusion integrated ring network box.

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