Electricity utilization safety monitoring system and method and medium

Abstract

The invention provides an electricity utilization safety monitoring system and method and a medium, the system comprises an online detection device and a control center service terminal, the online detection device is arranged on an electrical circuit and is used for collecting electrical parameter data generated by operation of electrical equipment in real time, and the control center service terminal is used for sending the electrical parameter data to the control center service terminal; the electrical parameter data are transmitted to the control center service terminal; and the control center service terminal is used for obtaining the fault type of the electrical circuit according to the electrical parameter data and giving a solution or giving an alarm according to the fault type. According to the invention, the method achieves the comprehensive analysis of the possible faults of the electrical circuit, solves the potential safety hazards of a circuit breaker in the prior art and the hysteresis quality of fault monitoring, improves the stability and reliability of the electrical circuit, and can reduce the fault rate and fire occurrence rate of the electrical circuit at the same time.

Description

Technical Field

[0001] The present invention relates to the field of safe electricity protection, and in particular to an electricity safety monitoring system, method and medium. Background Art

[0002] As production and living demands increase, the complexity of electricity usage is also increasing. To prevent major safety accidents such as fires caused by faults such as power line overloads and short circuits, it is common practice to install circuit breakers in the power system to achieve timely opening and closing of the current path. However, traditional circuit breakers are only suitable for cutting off the circuit during and after a safety fault occurs, and are not suitable for pre-emptive monitoring and early warning of electrical safety hazards. In addition, circuit breakers may experience faults such as overvoltage, overcurrent, overtemperature, and residual current during use, posing new safety hazards to the power system. Therefore, it is necessary to improve the existing technology for monitoring electricity safety. Summary of the Invention

[0003] In view of the safety hazards of circuit breakers in the prior art and the hysteresis of fault monitoring, the present disclosure aims to provide a power safety monitoring system, method and medium to solve the problems in the related art.

[0004] A first aspect of the present disclosure provides an electricity safety monitoring system, characterized in that it includes: an online detection device and a control center service terminal; the online detection device is arranged on an electrical line, and includes: an acquisition module and a network transmission module; the acquisition module is used to collect electrical parameter data generated by the operation of the electrical equipment in real time; the network transmission module is communicatively connected to the acquisition module and the control center service terminal, respectively, and is used to transmit the electrical parameter data collected by the acquisition module to the control center service terminal; the control center service terminal is used to derive the fault type of the electrical line according to the electrical parameter data, and provide a solution or issue an alarm accordingly.

[0005] In an embodiment of the first aspect, the electrical parameters include one or more combinations of electrical energy, power, voltage, current, residual current, temperature, and arc fault of the electrical circuit.

[0006] In an embodiment of the first aspect, the control center service terminal includes: an analysis module, which is used to calculate and analyze the electrical parameter data to obtain the fault type of the electrical circuit; a decision module, which is preset with solutions to different faults in different environmental characteristics and is connected to the analysis module, and is used to match the fault type obtained by the analysis module with the environmental characteristics of the electrical circuit to obtain a corresponding solution, and to issue an alarm for fault types that exceed the preset fault types of the decision module.

[0007] In an embodiment of the first aspect, the environmental characteristics include: home characteristics, office environment characteristics, factory characteristics, and outdoor characteristics.

[0008] In an embodiment of the first aspect, the analysis module includes: a steady-state analysis unit, configured to calculate an average value of an electrical parameter within a fixed period to analyze the fault type of the electrical circuit within the preset time period; and a transient analysis unit, configured to calculate an instantaneous value of the electrical parameter to evaluate a fault score of the corresponding electrical circuit based on changes in the instantaneous value.

[0009] In an embodiment of the first aspect, the transient analysis unit includes: an instantaneous value calculation subunit, which is used to calculate the instantaneous value of the electrical parameter corresponding to each sampling point in each cycle; a comparative analysis subunit, which fits and compares the change trajectory formed by each of the instantaneous values ​​with a preset scoring curve, and outputs a fitting comparison result; and an evaluation subunit, which is used to evaluate the fault score of the corresponding electrical circuit based on the fitting comparison result between the change trajectory and the preset scoring curve.

[0010] In an embodiment of the first aspect, the transient analysis unit further includes: a characteristic parameter output subunit, configured to obtain and output a characteristic parameter formed by processing the instantaneous value of the electrical parameter and the introduced phase angle when the fault score evaluated by the evaluation subunit is lower than an evaluation threshold.

[0011] In an embodiment of the first aspect, it also includes: a support service terminal, which is communicatively connected to the decision module, and is used to receive a warning issued by the decision module and provide a solution based on the content of the warning.

[0012] A second aspect of the present disclosure provides a method for monitoring electricity safety, which is applied to an online detection device as described in any one of the first aspects, and the method includes: collecting electrical parameter data generated by the operation of electrical equipment; transmitting the electrical parameter data to a control center service terminal, so that the control center service terminal can derive the fault type of the electrical circuit based on the electrical parameter data and provide a solution accordingly.

[0013] A third aspect of the present disclosure provides a method for monitoring electricity safety, which is applied to a control center service terminal as described in any one of the first aspects, and the method includes: receiving electrical parameters generated by the operation of electrical equipment collected by online detection equipment; analyzing the electrical parameter data to obtain the fault type of the electrical line status; and providing a corresponding solution based on the fault type.

[0014] A fourth aspect of the present disclosure is a computer-readable storage medium, characterized in that program instructions are stored therein, and the program instructions are executed to perform the method described in the third or fourth aspect.

[0015] As described above, the disclosed embodiments provide an electricity safety monitoring system, method, and medium. These systems utilize online detection equipment and a control center service terminal to collect electrical circuit parameters in real time, combine them with algorithms for precise analysis, and then match the analysis results with the solutions provided by the decision-making module. This enables monitoring and alarming for both gradual and sudden faults in power lines under various operating environments, reducing the incidence of electrical faults and improving electricity safety. Furthermore, a support service terminal is designed to send fault types beyond the system's stored information to experts for individual analysis, improving the accuracy of fault diagnosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of an electricity safety monitoring system in one embodiment of the present disclosure is shown.

[0017] Figure 2 A schematic diagram showing the structure of a control center service terminal in one embodiment of the present disclosure is shown.

[0018] Figure 3 A schematic diagram showing the structure of a control center service terminal in another embodiment of the present disclosure is shown.

[0019] Figure 4 A schematic structural diagram of a transient analysis unit in an embodiment of the present disclosure is shown.

[0020] Figure 5 A schematic structural diagram of an electricity safety monitoring system in another embodiment of the present disclosure is shown.

[0021] Figure 6 A flow chart showing a method for monitoring power safety in one embodiment of the present disclosure is provided.

[0022] Figure 7 A flow chart showing a method for monitoring electricity safety in another embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0023] The following describes the embodiments of the present disclosure through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present disclosure from the information disclosed in this disclosure. The present disclosure can also be implemented or applied through different specific embodiments. The details of the present disclosure can also be modified or changed according to different viewpoints and application modules without departing from the spirit of the present disclosure. It should be noted that the embodiments and features in the embodiments of the present disclosure can be combined with each other unless there is a conflict.

[0024] The following is a detailed description of the embodiments of the present disclosure with reference to the accompanying drawings so that those skilled in the art can easily implement the present disclosure. The present disclosure can be embodied in many different forms and is not limited to the embodiments described herein.

[0025] Throughout the present disclosure, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present disclosure. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or a group of embodiments or examples. Furthermore, those skilled in the art may combine and integrate different embodiments or examples, and features of different embodiments or examples, as described in the present disclosure, without conflicting requirements.

[0026] The technical terms used herein are intended only to refer to specific embodiments and are not intended to limit the present disclosure. The singular form used herein also includes the plural form, unless the statement explicitly indicates otherwise. The term "comprising" as used in this specification specifies specific features, regions, integers, steps, operations, elements, and / or components, and does not exclude the presence or addition of other features, regions, integers, steps, operations, elements, and / or components.

[0027] Although not defined differently, all terms used herein, including technical and scientific terms, have the same meanings as those generally understood by those skilled in the art to which this disclosure belongs. Terms defined in commonly used dictionaries are additionally interpreted as having meanings consistent with relevant technical literature and the current message. Unless otherwise defined, they should not be overly interpreted as ideal or highly formalized meanings.

[0028] The present invention relates to a technical solution for electricity safety monitoring. One of the main improvements lies in the composition of the monitoring system, which can timely monitor the electricity safety of electrical lines, improve the stability and reliability of the power system, and reduce the failure rate and fire incidence rate of user systems.

[0029] like Figure 1 As shown, a structural diagram of an electricity safety monitoring system in an embodiment of the present disclosure is shown, wherein the electricity safety monitoring system includes an online detection device 100 and a control center service terminal 200, wherein the online detection device 100 includes a collection module 110 and a network transmission module 120.

[0030] Specifically, the online detection device 100 can be installed on the user's home incoming line side according to user needs to monitor all electrical parameters of the entire user system; it can also be installed on an important branch of the user system to perform real-time monitoring of a single branch; or it can be installed on both the main line and the branch to obtain more detailed electrical parameter data.

[0031] The acquisition module 110 is used to collect electrical parameter data generated by the operation of electrical equipment in real time. Specifically, the internal software of the acquisition module 110 has a self-learning function, which can automatically filter out false data and interference signals to ensure the accuracy and precision of signal acquisition.

[0032] In some embodiments, the electrical parameters include one or more combinations of electrical energy, power, voltage, current, residual current, temperature, and arc fault of the electrical circuit.

[0033] The network transmission module 120 is respectively connected to the acquisition module 110 and the control center service terminal 200 for transmitting the electrical parameter data collected by the acquisition module 110 to the control center service terminal 200. Specifically, the communication includes wireless or wired communication connection, wireless communication methods such as WiFi, 2G / 3G / 4G / 5G mobile communication, Zigbee, LoRa, etc., and wired communication methods such as optical fiber, coaxial cable, telephone line, network cable, etc., which are not listed here. Of course, the online detection device 100 and its peer device must have corresponding communication circuits.

[0034] The control center service terminal 200 is used to determine the fault type of the electrical circuit according to the electrical parameter data, and provide a solution or issue an alarm accordingly.

[0035] In some embodiments, as Figure 2 As shown, the control center service terminal 200 includes an analysis module 210 and a decision module 220. The analysis module 210 is used to calculate and analyze the electrical parameter data to determine the fault type of the electrical circuit. The decision module 220 is pre-configured with solutions to different faults in different environmental characteristics and is connected to the analysis module 210. It is used to match the fault type determined by the analysis module 210 with the environmental characteristics of the electrical circuit to a corresponding solution and to issue an alarm for fault types that exceed the pre-configured fault types of the decision module 220.

[0036] In some embodiments, the decision module 220 may be an electrical safety knowledge database that stores possible fault types and solutions for each fault type in different environmental characteristics. Specifically, in some embodiments, the environmental characteristics include: home characteristics, office environment characteristics, factory characteristics, and outdoor characteristics. The home characteristics include appliances such as rice cookers, water heaters, home air conditioners, and refrigerators. These appliances are generally low-power and infrequently used. The office characteristics include electronic devices such as printers, projectors, and commercial air conditioners. Due to office needs, these appliances consume far more power than the electronics in the home characteristics. The factory characteristics include power equipment, motors, and industrial lighting. The outdoor characteristics include photovoltaics, energy storage, inverters, and charging stations. In practical applications, the analysis module 210 first locates the specific user environment based on the characteristics of the electrical parameters. Then, the decision module 220 matches the user environment with the fault type and outputs the corresponding solution from the database. For example, if the overcurrent in the factory characteristics persists for more than 1.5 hours, indicating a high risk of coil damage in the power equipment, the electrical safety knowledge database recommends issuing an alarm work order and shutting down the equipment within 0.5 hours. It is worth noting that the electrical safety knowledge base database has the functions of adding, deleting and changing, continuously optimizes and improves the data during use, and can provide an interface for a network server.

[0037] In some embodiments, as Figure 3 As shown, the analysis module 210 can also be divided into a steady-state analysis unit 211 and a transient analysis unit 212. The steady-state analysis unit 211 and the transient analysis unit 212 analyze different fault types. The steady-state analysis unit 211 is suitable for analyzing faults caused by long-term electrical operation. For example, in a household environment, an electric kettle needs to boil water for a period of time. During this process, the wires may heat up due to excessive power. The steady-state analysis unit 211 can promptly detect this based on the average value of the electrical parameters during this period. The transient analysis unit 212 is suitable for analyzing faults such as short circuits caused by the instantaneous use of electrical equipment. For example, when a kettle boils water, the current signal will change at the moment of power-on. Although humans cannot perceive this change, the transient analysis unit 212 can determine whether the circuit is faulty based on the instantaneous slices of the current signal before and after. The principle is similar. When identifying faults during battery charging, the transient analysis unit can also monitor and analyze the moment the charger is connected to determine whether the electrical circuit is normal or faulty.

[0038] In this embodiment, the steady-state analysis unit 211 and the transient analysis unit 212 cooperate with each other to perform more comprehensive monitoring of the electrical circuit, thereby reducing major accidents caused by untimely fault detection.

[0039] Specifically, the steady-state analysis unit 211 calculates the average value of electrical parameters within a fixed period to analyze the fault type of the electrical circuit within the preset time period. It can analyze the circuit's electrical energy, power, power factor, voltage, current, average residual current, and average temperature by year, month, day, hour, or minute, and present the data to the user in a data report or automatically send it to a user-specified email address. Furthermore, the steady-state analysis unit 211 can obtain the second-by-second average value of voltage, current, and power during the current operating state as a status analysis of the current operating state. For highly sensitive loads such as photovoltaic inverters, energy storage, and medical devices, such as medical equipment and communications equipment, a shorter analysis period is more conducive to monitoring and protecting electrical circuits. When a dangerous or faulty electrical circuit occurs, this can achieve the shortest monitoring time and the fastest protection efficiency. Accordingly, users can set different monitoring periods for the steady-state analysis unit 211 based on their environment and needs to ensure monitoring quality while reducing power consumption.

[0040] The transient analysis unit 212 is configured to calculate the instantaneous value of the electrical parameter, so as to evaluate the fault score of the corresponding electrical circuit according to the change of the instantaneous value.

[0041] In some embodiments, the transient analysis unit 212 includes an instantaneous value calculation subunit 2121, a comparative analysis subunit 2112, and an evaluation subunit 2113. The instantaneous value calculation subunit 2121 is configured to calculate the instantaneous value of the electrical parameter corresponding to each sampling point in each cycle; the comparative analysis subunit 2122 is configured to fit and compare the change trajectory formed by each instantaneous value with a preset scoring curve and output the fitting comparison result; and the evaluation subunit 2123 is configured to evaluate the fault score of the corresponding electrical circuit based on the fitting comparison result between the change trajectory and the preset scoring curve.

[0042] Furthermore, Figure 4 As shown, based on the previous embodiment, the transient analysis unit 212 also includes: a characteristic parameter output subunit 2124, which is used to obtain and output characteristic parameters formed by the instantaneous value of the electrical parameter and the introduced phase angle processing when the fault score evaluated by the evaluation unit is lower than the evaluation threshold.

[0043] In order to better illustrate the working principles of each subunit of the transient analysis unit 212, an example is given below.

[0044] The instantaneous value calculation subunit 2121 can be a voltage and current dual-channel waveform register, which samples the current and voltage at 256, 512, or 1024 points per cycle and then uses a transient analysis algorithm to derive the instantaneous voltage, current, and residual current values. The transient analysis algorithm plots the Cartesian coordinate representations of the instantaneous voltage value f(V, t), the instantaneous current value f(I, t), and the instantaneous residual current value f(ΔI, t) using a plane coordinate system related to time t. The comparative analysis subunit 2122 then compares the Cartesian coordinate representations of the instantaneous voltage, current, and residual current values ​​established by the transient analysis algorithm with a standard sine wave, marking the matching portion as qualified and the distorted portion as unqualified. Finally, the evaluation subunit 2123 evaluates the fault score of the line based on the matching results, setting the transient score of the standard sine wave to 100 points and setting an excellent fault score threshold of 95 for the electrical line. If the fault score is 95 or greater, the assessment subunit 2123 outputs a conclusion that the electrical circuit is in excellent condition. If the score is less than 95, the characteristic parameter output subunit 2124 outputs intermediate characteristics of the instantaneous voltage, current, and residual current. These intermediate characteristics include one or more combinations of electrical parameter signal information in the time and frequency domains, a Fourier transform feature array, and load analysis slice probability data. For example, the output content may include: the instantaneous current value analysis result f(ΔI, φ, t) with phase angle φ; the probability of an air conditioner on the line is 25%; the probability of a hair dryer on the line is 10%.

[0045] In the above embodiment, the transient analysis unit is subdivided into an instantaneous value calculation subunit, a comparative analysis subunit, an evaluation subunit, and a characteristic parameter output subunit, thereby improving the reliability and accuracy of the analysis results of the power safety system.

[0046] Since the fault types stored in the decision module 220 are limited and the actual circuit system is highly complex, the electrical parameters collected by the acquisition module 110 may generate fault types that are not yet stored in the decision module 220, and therefore it is not possible to find a solution that is suitable for them. Figure 5 As shown, the electricity safety monitoring system further includes a support service terminal 300 , which is communicatively connected to the decision module 220 and configured to receive warnings issued by the decision module 220 and provide solutions based on the warning content.

[0047] Specifically, when the decision module 220 cannot find a fault type that matches the analysis result, it issues an alarm to the support service terminal 300. The alarm information may include a combination of one or more of the electrical parameter data collected by the acquisition module 110, the Cartesian expression of the electrical parameters obtained by the analysis module 210, and the analysis results containing intermediate features, to request further analysis and judgment. The support service terminal 300 can be controlled by an electrical expert. The support service terminal 300 establishes a communication channel with the control center service terminal 200 to achieve real-time online consultation with technical experts, allowing on-duty personnel to obtain professional guidance in the first place and take corresponding measures as quickly as possible. The support service terminal 300 is preferably a computer, laptop, or mobile terminal, and the mobile terminal includes a smartphone or tablet.

[0048] like Figure 6 As shown, a method for monitoring power safety in an embodiment of the present invention is shown, which can be applied to Figure 1 The online detection device in the embodiment is implemented by a processor reading and running a software program in a memory; the method includes steps S61 to S62:

[0049] S61. Collect electrical parameter data generated by the operation of electrical equipment;

[0050] S62: Transmit the electrical parameter data to a control center service terminal, so that the control center service terminal can determine the fault type of the electrical circuit according to the electrical parameter data and provide a solution accordingly.

[0051] like Figure 7 As shown, a method for monitoring power safety in an embodiment of the present invention is shown, which can be applied to Figure 1 In the control center service terminal of the embodiment, the method includes steps S71 to S73:

[0052] S71. Receive electrical parameters generated by the operation of electrical equipment collected by an online detection device;

[0053] S72. Analyze the electrical parameter data to obtain the fault type of the electrical circuit state;

[0054] S73. Provide corresponding solutions according to the fault type.

[0055] In an embodiment of the present disclosure, a computer-readable storage medium may be provided, wherein program instructions are stored, and the program instructions are executed by running, for example Figure 6 or Figure 7The power safety monitoring method in the embodiment. That is, the method steps in the above embodiment are implemented as software or computer code that can be stored in a recording medium (such as a CD ROM, RAM, floppy disk, hard disk or magneto-optical disk), or as computer code originally stored in a remote recording medium or a non-transitory machine-readable medium downloaded via a network and then stored in a local recording medium, so that the method represented herein can be stored in such software processing on a recording medium using a general-purpose computer, a dedicated processor or programmable or dedicated hardware (such as an ASIC or FPGA).

[0056] In summary, the embodiments of the present disclosure provide an electricity safety monitoring system, method, and medium, which monitor electrical lines in real time through line detection equipment and a control center service terminal. The steady-state analysis unit and the transient analysis unit of the control center service terminal cooperate with each other to perform a comprehensive analysis of possible faults in the electrical lines, thereby solving the safety hazards of circuit breakers in the prior art and the lag in fault monitoring, improving the stability and reliability of the electrical lines, and reducing the failure rate and fire rate of the electrical lines.

[0057] The above embodiments are merely illustrative of the principles and effects of this disclosure and are not intended to limit this disclosure. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this disclosure. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical concepts disclosed herein shall be covered by the claims of this disclosure.

Claims

1. An electricity safety monitoring system, characterized in that: include: Online testing equipment and control center service terminal; The online detection device is arranged on the electrical circuit and comprises: an acquisition module and a network transmission module; The acquisition module is used to collect electrical parameter data generated by the operation of electrical equipment in real time; The network transmission module is respectively connected to the acquisition module and the control center service terminal for transmitting the electrical parameter data collected by the acquisition module to the control center service terminal; The control center service terminal is used to determine the fault type of the electrical circuit according to the electrical parameter data, and to provide a solution or issue an alarm accordingly.

2. The power safety monitoring system according to claim 1, characterized in that: The electrical parameters include one or more combinations of electrical energy, power, voltage, current, residual current, temperature, and arc fault of the electrical circuit.

3. The power safety monitoring system according to claim 1, characterized in that: The control center service terminal includes: An analysis module, configured to calculate and analyze the electrical parameter data to determine the fault type of the electrical circuit; The decision module is pre-set with solutions to different faults in different environmental characteristics and is connected to the analysis module. It is used to match the fault type obtained by the analysis module with the environmental characteristics of the electrical circuit to obtain a corresponding solution, and to issue an alarm for fault types that exceed the preset fault types of the decision module.

4. The power safety monitoring system according to claim 3, characterized in that: The environmental characteristics include: home characteristics, office environment characteristics, factory characteristics, and outdoor characteristics.

5. The power safety monitoring system according to claim 3, characterized in that: The analysis module includes: a steady-state analysis unit, configured to calculate an average value of electrical parameters within a fixed period to analyze a fault type of the electrical circuit within the preset time period; The transient analysis unit is used to calculate the instantaneous value of the electrical parameter to evaluate the fault score of the corresponding electrical line according to the change of the instantaneous value.

6. The power safety monitoring system according to claim 5, characterized in that: The transient analysis unit includes: An instantaneous value calculation subunit, configured to calculate the instantaneous value of the electrical parameter corresponding to each sampling point in each cycle; The comparison and analysis subunit performs fitting comparison on the change trajectory formed by each instantaneous value and a preset scoring curve, and outputs the fitting comparison result; The evaluation subunit is used to evaluate the fault score of the corresponding electrical circuit according to the fitting comparison between the change trajectory and the preset scoring curve.

7. The power safety monitoring system according to claim 6, characterized in that: The transient analysis unit further includes: The characteristic parameter output subunit is configured to obtain and output a characteristic parameter formed by processing the instantaneous value of the electrical parameter and the introduced phase angle when the fault score evaluated by the evaluation subunit is lower than an evaluation threshold.

8. The power safety monitoring system according to claim 5, characterized in that: Also includes: The support service terminal is communicatively connected to the decision module, and is used to receive the warning issued by the decision module and provide a solution according to the content of the warning.

9. A method for monitoring electricity safety, characterized in that: Applied to the online detection device according to claim 1, the method comprises: Collect electrical parameter data generated by the operation of electrical equipment; The electrical parameter data is transmitted to a control center service terminal, so that the control center service terminal can determine the fault type of the electrical circuit according to the electrical parameter data and provide a solution accordingly.

10. A method for monitoring electricity safety, characterized in that: Applied to the control center service terminal according to claim 1, the method comprises: Receiving electrical parameters generated by the operation of electrical equipment collected by online detection equipment; Analyzing the electrical parameter data to obtain a fault type of the electrical circuit state; According to the fault type, provide corresponding solutions.

11. A computer-readable storage medium, characterized in that Program instructions are stored, and the program instructions are executed to perform the method according to claim 9 or 10.

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