Ring main unit operation state monitoring system based on Internet of Things

Abstract

The invention provides a ring main unit running state monitoring system based on the Internet of Things. The ring main unit running state monitoring system comprises an acquisition unit, an edge processing unit, a cloud computing unit and an interaction unit. The collection unit is used for collecting operation parameters and environment parameters and comprises an assembling assembly and a collection assembly. The edge processing unit is used for receiving the operation parameters and the environment parameters, carrying out preprocessing and edge calculation according to the operation parameters and the environment parameters, and generating a preliminary state score. And the cloud computing unit is used for receiving and storing the preprocessed operation parameters, the preprocessed environment parameters and the initial state score, and generating a final state score. And the interaction unit is used for receiving the final state score and generating corresponding prompt information. According to the ring main unit operation state monitoring system based on the Internet of Things, the routing inspection workload of the ring main unit can be reduced, and the operation state monitoring precision of the ring main unit is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of detection systems, and in particular relates to a ring main unit operation status monitoring system based on the Internet of Things. Background Art

[0002] Ring main unit (RMU) is a key electrical equipment in the distribution network. Its core part uses electrical components such as load switches and fuses. It has the advantages of simple structure, low cost and safe power supply. Therefore, it is widely used in distribution stations and box-type substations in load centers such as urban residential areas, high-rise buildings, large public buildings, factories and enterprises.

[0003] To ensure the normal operation of the ring main unit (RMU) during use and to promptly detect potential failure risks of its electrical components, personnel must regularly inspect the RMU. However, due to the compact arrangement of electrical components within the RMU and the fluctuations in their actual operating status due to environmental conditions, manual inspections cannot promptly detect potential risks and increase the workload of personnel, thus failing to meet actual usage requirements. Summary of the Invention

[0004] In view of this, the present invention aims to propose a ring main unit operation status monitoring system based on the Internet of Things to solve the above technical problems.

[0005] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0006] A ring main unit (RMU) operating status monitoring system based on the Internet of Things (IoT) comprises: a collection unit, an edge processing unit, a cloud computing unit, and an interaction unit; the collection unit is configured to collect operating parameters of electrical components in the RMU and environmental parameters within the RMU, and the collection unit comprises an assembly component and a collection component, the assembly component being detachably mounted on the electrical components in the RMU, the collection component being mounted on the assembly component, and the assembly component being further provided with a power supply for powering the collection component; the edge processing unit is configured to receive the operating parameters and environmental parameters, perform preprocessing and edge computing based on the operating parameters and environmental parameters, generate a preliminary status score, and, when the preliminary status score is greater than a preset score threshold, transmit the processed operating parameters, preprocessed environmental parameters, and preliminary status score to the cloud computing unit; the cloud computing unit is configured to receive and store the preprocessed operating parameters, preprocessed environmental parameters, and preliminary status score, and perform big data analysis on the preprocessed operating parameters, preprocessed environmental parameters, and preliminary judgment results to generate a final status score; and the interaction unit is configured to receive the final status score and generate corresponding prompt information based on a comparison result between the final status score and a preset score interval.

[0007] Furthermore, the assembly component includes a mounting frame and a supporting plate, and the collection component includes a target sensor for collecting operating parameters and an environmental sensor for collecting environmental parameters; the mounting frame is provided with a slidable connecting seat, and the connecting seat is detachably connected to the electrical components in the ring network cabinet; the supporting plate is slidably arranged on the mounting frame, and the sliding direction of the supporting plate is perpendicular to the sliding direction of the connecting seat; a first mounting groove for accommodating a power supply and a second mounting groove for accommodating a target sensor are provided on the supporting plate, and a detection cutout for accommodating a detection end of the target sensor is provided on the bottom surface of the second mounting groove; a fixing seat is also provided on the side wall of the supporting plate, and a mounting cutout for accommodating the environmental sensor is provided on the fixing seat.

[0008] Furthermore, a plurality of heat dissipation holes are provided on the bottom surface of the first mounting groove.

[0009] Furthermore, the environmental sensor includes a temperature and humidity sensor;

[0010] The target sensor includes at least one of the following:

[0011] Temperature sensors for detecting the temperature of electrical components;

[0012] Partial discharge sensors for detecting partial discharge signals from electrical components;

[0013] Voltage sensors used to detect the voltage of electrical components;

[0014] Current sensor used to detect the current of electrical components.

[0015] Furthermore, the collection unit also includes a heat dissipation fan, which is detachably mounted on the assembly component, and an air inlet end of the heat dissipation fan is in contact with the power supply.

[0016] Furthermore, the edge processing unit includes: a communication module, a preprocessing module and an edge computing module; the communication module is used to realize the communication connection between the acquisition unit and the preprocessing module, and realize the communication connection between the edge computing module and the cloud computing unit; the preprocessing module is used to preprocess the operating parameters and environmental parameters by filtering and compressing, and generate preprocessed operating parameters and preprocessed environmental parameters; the edge computing module is used to perform preliminary analysis on the preprocessed operating parameters and preprocessed environmental parameters, generate a preliminary status score, and compare the preliminary status score with a preset score threshold.

[0017] Furthermore, the cloud computing unit includes a cloud storage module and a cloud computing module. The cloud storage module is used to store preprocessed operating parameters, preprocessed environmental parameters and preliminary status scores. The cloud computing module is used to analyze the preprocessed operating parameters, preprocessed environmental parameters and preliminary status scores through the XGB-LSTM-AE model to generate a final status score.

[0018] Furthermore, the prompt information includes: normal prompt information, warning prompt information and alarm prompt information;

[0019] The interaction unit generates a normal prompt message when the final status score is less than the lower limit of the preset score range;

[0020] The interactive unit generates a warning prompt message when the final status score is between the lower limit and the upper limit of the preset score interval;

[0021] The interactive unit generates an alarm prompt message when the final status score is greater than an upper limit value of a preset score interval.

[0022] Compared with the existing technology, the ring main unit operation status monitoring system based on the Internet of Things created by the present invention has the following advantages:

[0023] (1) The present invention creates a ring network cabinet operation status monitoring system based on the Internet of Things, which can collect operation parameters and environmental parameters through the collection unit and generate a preliminary status score through the edge processing unit. When the preliminary status score is greater than the preset score threshold, the edge processing unit can send the pre-processed operation parameters and environmental parameters and the preliminary status score to the cloud computing unit, thereby reducing the information transmission load of the cloud computing unit. At the same time, the final status score can also be generated by the cloud computing unit, and finally a corresponding prompt message is issued through the interactive unit, so as to reduce the number of ring network cabinet inspections by staff and timely judge whether there is a potential risk based on the actual operation status of the ring network cabinet.

[0024] (2) The present invention creates a ring network cabinet operation status monitoring system based on the Internet of Things, in which a slidable connecting seat is provided on the mounting frame in the assembly component, and a supporting plate is slidably arranged on the mounting frame. When installing the assembly component and the electrical component, the staff can adapt to different installation positions by sliding the connecting seat and the supporting plate, so that the acquisition component can collect parameters. At the same time, a heat dissipation fan is also provided on the acquisition unit. Therefore, when the system is running, the heat dissipation fan can reduce the heat of the power supply, thereby preventing the parameter collection accuracy of the acquisition component from being improperly affected by the heat of the power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the structure of the ring main unit operation status monitoring system based on the Internet of Things according to an embodiment of the present invention;

[0027] Figure 2 A schematic structural diagram of the assembly components and the heat dissipation fan according to an embodiment of the present invention;

[0028] Figure 3 An exploded view of the assembly components and the heat dissipation fan according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic structural diagram of the carrier plate described in an embodiment of the present invention.

[0030] Description of reference numerals:

[0031] 1-power supply; 21-target sensor; 22-environmental sensor; 3-mounting bracket; 31-connecting seat; 4-carrying plate; 41-first mounting slot; 411-heat dissipation hole; 42-second mounting slot; 421-detection cutout; 5-fixing seat; 51-mounting cutout; 6-heat dissipation fan. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined as "first", "second" and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0035] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0036] This embodiment provides a ring main unit operation status monitoring system based on the Internet of Things. Figure 1 As shown, the IoT-based ring main unit (RMU) operating status monitoring system includes: a collection unit, an edge processing unit, a cloud computing unit, and an interaction unit. The collection unit is used to collect the operating parameters of electrical components in the RMU and the environmental parameters within the RMU. The edge processing unit is used to receive the operating parameters and environmental parameters, perform preprocessing and edge computing based on the operating parameters and environmental parameters, generate a preliminary status score, and, when the preliminary status score exceeds a preset score threshold, send the processed operating parameters, preprocessed environmental parameters, and preliminary status score to the cloud computing unit. The cloud computing unit is used to receive and store the preprocessed operating parameters, preprocessed environmental parameters, and preliminary status score, and perform big data analysis on the preprocessed operating parameters, preprocessed environmental parameters, and preliminary judgment results to generate a final status score. The interaction unit is used to receive the final status score and generate corresponding prompt information based on the comparison result of the final status score with the preset score range.

[0037] Specifically, the data collection unit in this embodiment includes an assembly component and a data collection component. The assembly component is detachably mounted on an electrical component within the ring main unit, providing a mounting base for the other components of the data collection unit. The data collection component is mounted on the assembly component to collect operating and environmental parameters. Furthermore, a power supply 1 is provided on the assembly component to power the data collection component, and the data collection component is electrically connected to the power supply 1 via wires.

[0038] like Figure 2 、 Figure 3 and Figure 4As shown, the assembly component may include a mounting frame 3 and a supporting plate 4, and the collection component may include a target sensor 21 for collecting operating parameters and an environmental sensor 22 for collecting environmental parameters. The mounting frame 3 is provided with a slidable connecting seat 31, and the supporting plate 4 is slidably arranged on the mounting frame 3, and the sliding direction of the supporting plate 4 is perpendicular to the sliding direction of the connecting seat 31. The supporting plate 4 is provided with a first mounting groove 41 for accommodating the power supply 1 and a second mounting groove 42 for accommodating the target sensor 21, and a detection cutout 421 for accommodating the detection end of the target sensor 21 is provided on the bottom surface of the second mounting groove 42. A fixing seat 5 may also be provided on the side wall of the supporting plate 4, and a mounting cutout 51 for accommodating the environmental sensor 22 is provided on the fixing seat 5.

[0039] During assembly, the staff can first install the connecting seat 31 to the side of the electrical component in the ring network cabinet through existing detachable connecting structures such as connecting bolts, magnetic clips or negative pressure adsorption clips, so that the mounting frame 3 is fixed above the electrical component. Next, the target sensor 21 is moved to the corresponding detection area of ​​the electrical component by sliding the supporting plate 4, so that the target sensor 21 can collect the operating parameters of the electrical component. Finally, the detachable connecting structure on the connecting seat 31 is tightened to prevent the mounting frame 3 and the supporting plate 4 from moving abnormally during use. Since the connecting seat 31 and the supporting plate 4 both have the ability to slide, the staff can flexibly adjust the position of the connecting seat 31 and the supporting plate 4 according to the actual situation around the electrical component, so as to adapt to the small and crowded available space in the ring network cabinet, facilitate the installation of the assembly components, and ensure that the collection components can smoothly carry out the subsequent parameter collection work.

[0040] It should be noted that the environmental sensor 22 in this embodiment may include a temperature and humidity sensor. When in use, the temperature and humidity sensor can detect the ambient temperature and humidity, and use the ambient temperature and humidity as environmental parameters to facilitate the determination of the actual internal environment of the ring main unit. The target sensor 21 may include at least one of a temperature sensor, a partial discharge sensor, a voltage sensor, and a current sensor. When in use, the temperature sensor can detect the temperature of an electrical component to facilitate the determination of whether the electrical component is overheating. The partial discharge sensor can detect partial discharge signals to determine whether the electrical component has insulation defects. The voltage sensor and current sensor can respectively detect the voltage and current of the electrical component during actual operation to determine whether the electrical component is overloaded or overcurrent.

[0041] In actual use, since both electrical components and power supply 1 generate heat during operation, the data collection unit in this embodiment may also include a heat dissipation fan 6 to prevent the operating status of the electrical components from being affected and to prevent the power supply 1 from becoming dangerous due to overheating. Specifically, heat dissipation fan 6 is detachably mounted on the assembly, with the air inlet of heat dissipation fan 6 in contact with power supply 1. When heat dissipation fan 6 is activated, air around power supply 1 begins to flow, thereby reducing the temperature around power supply 1 and preventing the operating status of the electrical components from being unduly affected by the heat generated by power supply 1.

[0042] In addition, a plurality of heat dissipation holes 411 may be further provided on the bottom surface of the first mounting groove 41 , thereby improving the air circulation effect around the power supply 1 by means of the heat dissipation holes 411 .

[0043] In this embodiment, the edge processing unit may include: a communication module, a preprocessing module, and an edge computing module. The communication module is used to establish communication connections between the acquisition unit and the preprocessing module, and between the edge computing module and the cloud computing unit. The communication module may utilize existing LoRa or LoRaWAN communication technologies, or may utilize Bluetooth, 4G, 5G, NB-IoT, or other existing communication technologies to implement the aforementioned data communication functions. The preprocessing module is used to preprocess operating parameters and environmental parameters by filtering and compressing them, generating preprocessed operating parameters and preprocessed environmental parameters to facilitate subsequent processing by the edge computing module and the cloud computing unit. The edge computing module is used to perform preliminary analysis of the preprocessed operating parameters and preprocessed environmental parameters, generate a preliminary status score, and compare the preliminary status score with a preset score threshold. The edge computing module may utilize a common industrial-grade embedded computer in the prior art. In use, the edge computing module aggregates data collected by various sensors in the acquisition component and runs a lightweight AI model to analyze the aggregated data to derive a preliminary status score for the ring main unit's operating status. When the preliminary status score is less than or equal to the preset score threshold, it proves that the current operation status of the ring main unit is relatively stable. At this time, data can be omitted from the cloud computing unit, thereby reducing the information transmission load and computing power requirements of the cloud computing unit. When the preliminary status score is greater than the preset score threshold, it proves that the current operation status of the ring main unit is at a high risk. At this time, data should be sent to the cloud computing unit so that the cloud computing unit with more powerful computing power can accurately determine the actual operation status of the ring main unit.

[0044] To accurately determine the actual operating status of the ring main unit (RMU) and facilitate data tracing by personnel, the cloud computing unit in this embodiment includes a cloud storage module and a cloud computing module. The cloud storage module is used to store preprocessed operating parameters, preprocessed environmental parameters, and preliminary status scores, while the cloud computing module is used to analyze these preprocessed operating parameters, preprocessed environmental parameters, and preliminary status scores using the XGB-LSTM-AE model to generate a final status score.

[0045] It should be noted that the XGB-LSTM-AE model described in this embodiment is a common hybrid diagnostic model in the prior art. The XGB layer is used for feature fusion analysis, the LSTM layer is used to predict trend changes, and the AE layer is used for anomaly detection. The specific structure of the XGB-LSTM-AE model is well known and does not constitute the core invention of this application, so it will not be detailed here.

[0046] As an optional implementation of this embodiment, the prompt information of the interactive unit may include: normal prompt information, early warning prompt information and alarm prompt information. When the final status score is less than the lower limit of the preset score interval, it proves that the current ring network cabinet is in normal operating state and no additional inspection is required. At this time, the interactive unit should generate normal prompt information. When the final status score is between the lower limit and the upper limit of the preset score interval, it proves that there is a risk of failure in the operating state of the current ring network cabinet. At this time, the interactive unit should generate early warning prompt information to remind the staff to conduct timely inspections. When the final status score is greater than the upper limit of the preset score interval, it proves that the current ring network cabinet has an operational failure. At this time, the interactive unit should generate an alarm prompt information to remind the staff to perform emergency repairs in a timely manner.

[0047] The following describes the effects of the above scheme:

[0048] This embodiment provides a ring network cabinet operation status monitoring system based on the Internet of Things, which can automatically complete the operation status monitoring of the ring network cabinet through the cooperation of the acquisition unit, the edge processing unit, the cloud computing unit and the interactive unit, thereby reducing the inspection workload of the staff. Secondly, the system can generate a preliminary status score based on the edge processing unit, and send the relevant data to the cloud computing unit when the preliminary status score is higher than the preset score threshold. It can not only improve the accuracy of the judgment of the operation status of the ring network cabinet, but also reduce the information transmission load and computing power requirements of the cloud computing unit when the ring network cabinet is running smoothly. In addition, the system can also install the acquisition component by assembling the components, so as to adapt to the narrow operating space inside the ring network cabinet.

[0049] It should be noted that the various types of sensors described in this embodiment are all existing products. Those skilled in the art can accurately know the specific structure, working principle and application method of the above products through existing technology, and the above content does not belong to the core invention of this application, so it will not be repeated.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A ring main unit operation status monitoring system based on the Internet of Things, characterized in that: include: A collection unit, an edge processing unit, a cloud computing unit and an interaction unit; the collection unit is used to collect operating parameters of electrical components in a ring network cabinet and environmental parameters inside the ring network cabinet, the collection unit includes an assembly component and a collection component, the assembly component is detachably arranged on the electrical components in the ring network cabinet, the collection component is installed on the assembly component, and a power supply (1) for powering the collection component is also provided on the assembly component; the edge processing unit is used to receive operating parameters and environmental parameters, perform preprocessing and edge computing based on the operating parameters and environmental parameters, generate a preliminary status score, and when the preliminary status score is greater than a preset score threshold, send the processed operating parameters, preprocessed environmental parameters and preliminary status score to the cloud computing unit; the cloud computing unit is used to receive and store the preprocessed operating parameters, preprocessed environmental parameters and preliminary status score, and perform big data analysis on the preprocessed operating parameters, preprocessed environmental parameters and preliminary judgment results to generate a final status score; the interaction unit is used to receive the final status score and generate corresponding prompt information based on the comparison result between the final status score and the preset score interval.

2. The ring main unit operation status monitoring system based on the Internet of Things according to claim 1 is characterized in that: The assembly component comprises a mounting frame (3) and a bearing plate (4), and the collection component comprises a target sensor (21) for collecting operating parameters and an environmental sensor (22) for collecting environmental parameters; a slidable connecting seat (31) is provided on the mounting frame (3), and the connecting seat (31) is detachably connected to an electrical component in a ring network cabinet; the bearing plate (4) is slidably arranged on the mounting frame (3), and the sliding direction of the bearing plate (4) is perpendicular to the sliding direction of the connecting seat (31); a first mounting groove (41) for accommodating a power supply (1) and a second mounting groove (42) for accommodating a target sensor (21) are provided on the bearing plate (4), and a detection notch (421) for accommodating a detection end of the target sensor (21) is provided on the bottom surface of the second mounting groove (42); a fixing seat (5) is further provided on the side wall of the bearing plate (4), and a mounting notch (51) for accommodating the environmental sensor (22) is provided on the fixing seat (5).

3. The ring main unit operation status monitoring system based on the Internet of Things according to claim 2 is characterized in that: A plurality of heat dissipation holes (411) are provided on the bottom surface of the first mounting groove (41).

4. The ring main unit operation status monitoring system based on the Internet of Things according to claim 1 is characterized in that: The environmental sensor (22) includes a temperature and humidity sensor; The target sensor (21) includes at least one of the following: Temperature sensors for detecting the temperature of electrical components; Partial discharge sensors for detecting partial discharge signals from electrical components; Voltage sensors used to detect the voltage of electrical components; Current sensor used to detect the current of electrical components.

5. The ring main unit operation status monitoring system based on the Internet of Things according to claim 1 is characterized in that: The collection unit further comprises a heat dissipation fan (6), which is detachably mounted on the assembly component, and an air inlet end of the heat dissipation fan (6) is in contact with the power source (1).

6. The ring main unit operation status monitoring system based on the Internet of Things according to claim 1 is characterized in that: The edge processing unit includes: a communication module, a preprocessing module and an edge computing module; the communication module is used to realize the communication connection between the acquisition unit and the preprocessing module, and realize the communication connection between the edge computing module and the cloud computing unit; the preprocessing module is used to preprocess the operating parameters and environmental parameters by filtering and compressing, and generate preprocessed operating parameters and preprocessed environmental parameters; the edge computing module is used to perform preliminary analysis on the preprocessed operating parameters and preprocessed environmental parameters, generate a preliminary status score, and compare the preliminary status score with a preset score threshold.

7. The ring main unit operation status monitoring system based on the Internet of Things according to claim 1 is characterized in that: The cloud computing unit includes a cloud storage module and a cloud computing module. The cloud storage module is used to store preprocessed operating parameters, preprocessed environmental parameters and preliminary status scores. The cloud computing module is used to analyze the preprocessed operating parameters, preprocessed environmental parameters and preliminary status scores through the XGB-LSTM-AE model to generate a final status score.

8. The ring main unit operation status monitoring system based on the Internet of Things according to claim 1 is characterized in that: The prompt information includes: normal prompt information, early warning prompt information and alarm prompt information; The interaction unit generates a normal prompt message when the final status score is less than the lower limit of the preset score range; The interactive unit generates a warning prompt message when the final status score is between the lower limit and the upper limit of the preset score interval; The interactive unit generates an alarm prompt message when the final status score is greater than an upper limit value of a preset score interval.

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