Wire earth leakage checking and warning system of apartment complex and building

Abstract

A system for warning guidance on electrical leakage inspection of electrical lines in multi-unit dwellings and buildings is provided, comprising: at least one IoT device equipped for each electrical line of the multi-unit dwelling and building; a leakage inspection device that monitors electrical leakage in the electrical line from at least one IoT device and outputs a signal when leakage occurs; a manager terminal that extracts the location of the multi-unit dwelling or building where leakage occurred and the unique identification code of the IoT device, and transmits an inspection request to a technician in charge of the location; a storage unit that maps and stores the location of at least one IoT device and its unique identification code; a monitoring unit that enables monitoring data monitored by at least one IoT device to be output from the manager terminal; a leakage guidance unit that transmits a signal to the manager terminal when a signal is output from the leakage inspection device; and an inspection management unit that enables the technician terminal to upload inspection results when an inspection request is transmitted from the manager terminal to the technician.

Description

Technology Field

[0001] The present invention relates to a warning guidance system for electrical line leakage inspection in multi-unit housing and buildings, and provides a system capable of inspecting whether insulation is being maintained in electrical lines of multi-unit housing and buildings and providing a warning in the event of a leakage. Background Technology

[0002] Owners or occupants of electrical facilities in multi-unit dwellings and buildings must appoint an electrical safety manager to perform electrical safety management duties in accordance with Article 22 of the Electrical Safety Management Act. Furthermore, the electrical safety manager is required to conduct annual inspections of electrical facilities within individual units of multi-unit dwellings in accordance with Article 30, Paragraph 2 of the Enforcement Rule of the Electrical Safety Management Act and Article 3, Paragraph 4 of the Notification on the Duties of Electrical Safety Managers. In this process, to inspect for leakage current in the lines, equipment that may affect or be damaged during insulation measurement must be disconnected prior to measurement, in accordance with the insulation performance of lines under Article 52 of the Technical Standards for Electrical Installations. If disconnection is difficult, the test voltage may be lowered to 250V DC for measurement. Additionally, in accordance with Article 132 of the Korean Electrical Equipment Regulations (KEC), if insulation resistance measurement is difficult, the insulation performance of the circuit is deemed compliant if the leakage current of the resistive component is 1mA or less.

[0003] At this time, methods for performing integrated electrical safety management of multi-unit housing or searching for and providing guidance on the location of electrical leakage have been researched and developed. In this regard, prior art Korean Registered Patent No. 10-2561624 (published July 31, 2023) and Korean Registered Patent No. 10-0995672 (published November 19, 2010) respectively disclose a configuration capable of monitoring underground power distribution lines of multi-unit housing to prevent and suppress electrical leakage and short circuits caused by line accidents in the early stages, and a configuration capable of generating a signal sound to identify wire connection points with poor insulation conditions by measuring insulation resistance values ​​and comparing them with reference resistance values.

[0004] However, while the former is described as preventing leakage and short circuits in underground wiring of multi-unit dwellings, its actual configuration is merely a mechanical shape and structure designed to prevent leakage and short circuits, and it does not provide a warning alarm after performing a leakage inspection. In the case of the latter, if the line is measured manually, it only provides guidance on whether a leakage is occurring after comparing the reference resistance value with the insulation resistance value; it does not disclose a configuration that automatically measures and provides guidance on leakage. Currently in Korea, to prevent electrical disasters, inspectors visit electrical facilities in person to conduct inspections. They check the seven major items of periodic inspection, including insulation resistance, service entrance wiring, leakage circuit breakers, switches, circuit breakers, indoor and outdoor wiring, grounding status, and other items. However, since the condition of electrical facilities at the time of inspection is not maintained, it is difficult to predict precursors to accidents. Therefore, research and development of a system is required to enable remote leakage inspections of electrical lines in multi-unit dwellings and buildings, and to provide warning guidance based on the inspection results. The problem to be solved

[0005] One embodiment of the present invention provides a system for warning guidance on electrical leakage inspection of electrical lines in multi-unit housing and buildings, which performs an electrical leakage inspection of electrical lines in multi-unit housing and buildings based on IoT, provides the inspection results to a remote administrator terminal, provides a warning notice to the administrator terminal if the inspection results deviate from a preset normal range, assigns the task to a technician terminal to dispatch a technician to the location where the inspection was conducted, and is designed to accumulate power using an energy harvesting method when power is not constantly supplied to IoT devices, and builds the remote inspection data into big data to detect abnormal signs of electrical leakage in the lines, and predicts electrical leakage in advance by learning, verifying, and testing the abnormal signs. However, the technical problem that this embodiment aims to solve is not limited to the technical problem described above, and other technical problems may exist. means of solving the problem

[0006] As a technical means for achieving the aforementioned technical problem, one embodiment of the present invention comprises: a leakage current inspection device that includes at least one IoT device provided for each electrical line of a multi-unit dwelling or building, monitors leakage current in the electrical line from at least one IoT device, and outputs a signal when leakage current occurs; a manager terminal that extracts the location of the multi-unit dwelling or building where leakage current has occurred and the unique identification code of the IoT device, and transmits an inspection request to a technician in charge of the location; a storage unit that maps and stores the unique identification code of at least one IoT device and the location; a monitoring unit that enables monitoring data monitored by at least one IoT device to be output from the manager terminal; a leakage current guidance unit that transmits a signal to the manager terminal when a signal is output from the leakage current inspection device; and an inspection management unit that enables the technician terminal to upload inspection results when an inspection request is transmitted from the manager terminal to the technician. Effects of the invention

[0007] According to any one of the means for solving the problem of the present invention described above, after conducting a leakage current inspection of electrical lines in multi-unit housing and buildings based on IoT, the results of the leakage current inspection are provided to a remote administrator terminal; if the results of the leakage current inspection deviate from a preset normal range, a warning notice is provided to the administrator terminal; the administrator terminal assigns the task to a technician terminal to dispatch a technician to the location where the leakage current inspection was conducted; and if power is not constantly supplied to the IoT device, the system is designed to accumulate power using an energy harvesting method; after building the remote inspection data into big data, abnormal signs indicating leakage in the electrical lines are detected; and by learning, verifying, and testing these abnormal signs, leakage in the electrical lines is predicted in advance; and ultimately, by stipulating matters necessary for the prevention of electrical disasters and the safety management of electrical facilities, the lives and property of the people can be protected and public safety can be secured. Brief explanation of the drawing

[0008] FIG. 1 is a drawing for explaining a warning guidance system for electrical line leakage inspection of multi-unit housing and buildings according to one embodiment of the present invention. Figure 2 is a block diagram for explaining a leakage current inspection device included in the system of Figure 1. FIGS. 3 and 4 are drawings for explaining an embodiment in which a leakage current inspection warning guidance service according to an embodiment of the present invention is implemented. FIG. 5 is an operation flowchart illustrating a method for providing a leakage current inspection warning guidance service according to an embodiment of the present invention. Specific details for implementing the invention

[0009] Embodiments of the present invention are described below with reference to the attached drawings so that those skilled in the art can easily implement the invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. Furthermore, in order to clearly explain the present invention in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification are denoted by similar reference numerals.

[0010] Throughout the specification, when a part is described as being "connected" to another part, this includes not only cases where they are "directly connected" but also cases where they are "electrically connected" with other elements interposed between them. Furthermore, when a part is described as "including" a component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components, and it should be understood that this does not preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0011] Terms such as “about,” “substantially,” etc., used throughout the specification, are used to mean at or near the stated value when inherent manufacturing and material tolerances are presented in the stated meaning, and are used to prevent unscrupulous infringers from unfairly exploiting the disclosure in which precise or absolute values ​​are mentioned to aid in understanding the invention. Terms such as “step” or “step of” used throughout the specification of the invention do not mean “step for”.

[0012] In this specification, the term "part" includes a unit realized by hardware, a unit realized by software, and a unit realized using both. Additionally, one unit may be realized using two or more pieces of hardware, and two or more units may be realized by one piece of hardware. Meanwhile, "part" is not limited to software or hardware, and "part" may be configured to reside in an addressable storage medium or configured to run on one or more processors. Accordingly, as an example, "part" includes components such as software components, object-oriented software components, class components, and task components, as well as processes, functions, attributes, procedures, subroutines, segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, and variables. The functions provided within the components and "parts" may be combined into a smaller number of components and "parts" or further separated into additional components and "parts." In addition, the components and '~parts' may be implemented to play one or more CPUs within the device or secure multimedia card.

[0013] Some of the operations or functions described herein as being performed by a terminal, device, or device may instead be performed by a server connected to said terminal, device, or device. Likewise, some of the operations or functions described as being performed by a server may also be performed by a terminal, device, or device connected to said server.

[0014] In this specification, some of the operations or functions described as mapping or matching with a terminal may be interpreted as meaning mapping or matching the terminal's unique number or personal identification information, which is the terminal's identifying data.

[0015] The present invention will be described in detail below with reference to the attached drawings.

[0016] FIG. 1 is a drawing for explaining a warning guidance system for electrical line leakage inspection of multi-unit housing and buildings according to an embodiment of the present invention. Referring to FIG. 1, the warning guidance system (1) for electrical line leakage inspection of multi-unit housing and buildings may include at least one administrator terminal (100), an integrated management server (300), a leakage inspection device (400), and at least one technician terminal (500). However, since the warning guidance system (1) for electrical line leakage inspection of multi-unit housing and buildings of FIG. 1 is merely an embodiment of the present invention, the present invention is not to be interpreted as being limited through FIG. 1.

[0017] At this time, each component of FIG. 1 is generally connected through a network (Network, 200). For example, as shown in FIG. 1, at least one manager terminal (100) can be connected to an integrated management server (300) through the network (200). And, the integrated management server (300) can be connected to at least one manager terminal (100), a leakage inspection device (400), and at least one technician terminal (500) through the network (200). Also, the leakage inspection device (400) can be connected to the integrated management server (300) through the network (200). And, at least one technician terminal (500) can be connected to at least one manager terminal (100), the integrated management server (300), and the leakage inspection device (400) through the network (200).

[0018] Here, a network refers to a connection structure capable of exchanging information among individual nodes, such as multiple terminals and servers. Examples of such networks include Local Area Networks (LANs), Wide Area Networks (WANs), the World Wide Web (WWW), wired and wireless data networks, telephone networks, and wired and wireless television networks. Examples of wireless data communication networks include, but are not limited to, 3G, 4G, 5G, 3GPP (3rd Generation Partnership Project), 5GPP (5th Generation Partnership Project), 5G NR (New Radio), 6G (6th Generation of Cellular Networks), LTE (Long Term Evolution), WIMAX (World Interoperability for Microwave Access), Wi-Fi, Internet, LAN (Local Area Network), Wireless LAN (Wireless Local Area Network), WAN (Wide Area Network), PAN (Personal Area Network), RF (Radio Frequency), Bluetooth network, NFC (Near-Field Communication) network, satellite broadcasting network, analog broadcasting network, DMB (Digital Multimedia Broadcasting) network, etc.

[0019] In the following, the term "at least one" is defined as a term including both singular and plural forms, and it will be obvious that even if the term "at least one" does not exist, each component may exist in a singular or plural form and may mean singular or plural. Furthermore, whether each component is provided in a singular or plural form may be changed according to the embodiment.

[0020] At least one administrator terminal (100) may be a terminal of an administrator that outputs monitoring data for a leakage current check using a web page, app page, program, or application related to a leakage current check warning guidance service, and outputs a warning when the leakage current check result deviates from the normal range.

[0021] Here, at least one administrator terminal (100) may be implemented as a computer capable of connecting to a remote server or terminal via a network. Here, the computer may include, for example, a laptop, desktop, or laptop equipped with a navigation system or a web browser. At this time, at least one administrator terminal (100) may be implemented as a terminal capable of connecting to a remote server or terminal via a network. At least one manager terminal (100) may include all kinds of handheld-based wireless communication devices, such as navigation, PCS (Personal Communication System), GSM (Global System for Mobile communications), PDC (Personal Digital Cellular), PHS (Personal Handyphone System), PDA (Personal Digital Assistant), IMT (International Mobile Telecommunication)-2000, CDMA (Code Division Multiple Access)-2000, W-CDMA (W-Code Division Multiple Access), Wibro (Wireless Broadband Internet) terminal, smartphone, smartpad, tablet PC, etc.

[0022] The integrated management server (300) may be a server that provides a web page, app page, program, or application for a leakage inspection warning guidance service. Additionally, the integrated management server (300) may be a server that outputs monitoring data collected from a leakage inspection device (400) to an administrator terminal (100), outputs a warning to the administrator terminal (100) when the data deviates from the normal range, and distributes tasks to perform on-site inspection by performing scheduling when dispatch work is assigned from the administrator terminal (100) to a technician terminal (500).

[0023] Here, the integrated management server (300) may be implemented as a computer capable of connecting to a remote server or terminal via a network. Here, the computer may include, for example, a laptop, desktop, laptop, etc. equipped with a navigation system and a web browser.

[0024] The leakage current inspection device (400) may be at least one IoT (Internet of Things) device that detects a leakage current and outputs monitoring data using a web page, app page, program, or application related to a leakage current inspection warning guidance service. Additionally, the leakage current inspection device (400) may be a device that outputs a signal when a leakage current is detected.

[0025] Here, the leakage current inspection device (400) can be implemented as a computer capable of connecting to a remote server or terminal via a network. Here, the computer may include, for example, a navigation system, a laptop equipped with a web browser, a desktop, a laptop, etc. At this time, the leakage current inspection device (400) can be implemented as a terminal capable of connecting to a remote server or terminal via a network. The leakage current inspection device (400) may include all kinds of handheld-based wireless communication devices, such as navigation, PCS (Personal Communication System), GSM (Global System for Mobile communications), PDC (Personal Digital Cellular), PHS (Personal Handyphone System), PDA (Personal Digital Assistant), IMT (International Mobile Telecommunication)-2000, CDMA (Code Division Multiple Access)-2000, W-CDMA (W-Code Division Multiple Access), Wibro (Wireless Broadband Internet) terminal, smartphone, smartpad, tablet PC, etc.

[0026] At least one technician terminal (500) may be a terminal of a field technician who is assigned to dispatch for electrical leakage inspection using a web page, app page, program, or application related to the electrical leakage inspection warning guidance service and uploads the results of the field inspection.

[0027] Here, at least one article terminal (500) may be implemented as a computer capable of connecting to a remote server or terminal via a network. Here, the computer may include, for example, a laptop, desktop, or laptop equipped with a navigation system or a web browser. At this time, at least one article terminal (500) may be implemented as a terminal capable of connecting to a remote server or terminal via a network. At least one article terminal (500) may include all kinds of handheld-based wireless communication devices, such as navigation, PCS (Personal Communication System), GSM (Global System for Mobile communications), PDC (Personal Digital Cellular), PHS (Personal Handyphone System), PDA (Personal Digital Assistant), IMT (International Mobile Telecommunication)-2000, CDMA (Code Division Multiple Access)-2000, W-CDMA (W-Code Division Multiple Access), Wibro (Wireless Broadband Internet) terminal, smartphone, smartpad, tablet PC, etc.

[0028] FIG. 2 is a block diagram for explaining a leakage current inspection device included in the system of FIG. 1, and FIG. 3 and FIG. 4 are drawings for explaining an embodiment in which a leakage current inspection warning guidance service according to an embodiment of the present invention is implemented.

[0029] Referring to FIG. 2, the integrated management server (300) may include a storage unit (310), a monitoring unit (320), a leakage guidance unit (330), an inspection management unit (340), a leakage prediction unit (350), and a safety evaluation unit (360).

[0030] When an integrated management server (300) or another server (not shown) operating in conjunction with an embodiment of the present invention transmits a leakage inspection warning guidance service application, program, app page, web page, etc. to at least one administrator terminal (100), a leakage inspection device (400), and at least one technician terminal (500), the at least one administrator terminal (100), the leakage inspection device (400), and the at least one technician terminal (500) may install or open the leakage inspection warning guidance service application, program, app page, web page, etc. Additionally, a service program may be operated on at least one administrator terminal (100), the leakage inspection device (400), and at least one technician terminal (500) using a script executed in a web browser. Here, a web browser refers to a program that enables the use of web (WWW: World Wide Web) services and receives and displays hypertext described in HTML (Hyper Text Mark-up Language), and includes, for example, Chrome, Microsoft Edge, Safari, Firefox, Whale, UC Browser, etc. Additionally, an application refers to an application on a terminal, and includes, for example, an app running on a mobile terminal (smartphone).

[0031] Referring to FIG. 2, the storage unit (310) can store a mapped unique identification code and location of at least one IoT device. To measure the condition of the electric line and transmit data, recently developed IoT communication technologies such as LoRa (Long Range) and NB-IoT (Narrowband Internet of Things) can be used. In addition, since insulation resistance meters used to check the insulation condition of electric lines measure insulation in a de-energized state, it is difficult to find devices or loads with poor insulation, so insulation must be measured in a live state. Therefore, to measure insulation in a live state and check the sound condition of the electric line in real time, a device capable of acquiring and transmitting electrical safety information in a live state can be used for electric line inspection. To check for leakage in the electric line, at least one IoT device for real-time insulation condition monitoring can be designed and installed to measure and manage items such as voltage, current, leakage current, and power.

[0032] Input from the IoT device can be set to instantaneous values, and the data transmission code can be configured to transmit values ​​for normal state, overcurrent, overvoltage, insulation resistance, resistive leakage current, capacitive leakage current, composite leakage current, temperature, power outage, power factor, active power, reactive power, apparent power, etc. As an important item for monitoring the insulation state, leakage current must be measured by distinguishing between resistive and capacitive. To accurately measure leakage current, the IoT device must be designed to prevent errors even when affected by DC voltage components. To this end, by utilizing a low-pass filter and an amplifier to remove harmonics from the IoT device, the measured values ​​are sequentially stored in an array, and the zero-sequence component is removed from the stored values ​​to use instantaneous values ​​of offset voltage that are not affected by DC voltage components. The resistive leakage current calculation can be designed to process the leakage current faster than the operation of the leakage circuit breaker by using voltage and current values ​​stored in the array sequentially to calculate the resistive leakage current value. Additionally, when the resistive leakage current exceeds a preset threshold, the leakage current calculation value can be designed to be transmitted wirelessly as a signal to the leakage current inspection device (400).

[0033] The monitoring unit (320) can enable monitoring data monitored from at least one IoT device to be output to the administrator terminal (100). The leakage current inspection device (400) includes at least one IoT device provided for each electrical line of a multi-unit dwelling or building, monitors the leakage current of the electrical line from at least one IoT device, and can output a signal when a leakage current occurs. At this time, for monitoring, the normal range and abnormal range of the leakage current must be set, and a leakage current vector can be used. When the leakage current inspection device (400) sets a reference vector so that the input voltage is placed on the X-axis of the vector plane (XY), the leakage current vector must be calculated. At this time, the X value of the leakage current vector is equal to the value of the resistive leakage current (Igr) and is related to the electrical energy leaking out during power flow. The Y value of the leakage current vector is equal to the value of the capacitive leakage current (Igc) and is related to the charging energy according to the equipment capacitance, and is related to power outage damage that may occur during a power outage. Therefore, event criteria for Igr and Igo must be set. In this case, Igo is the square root of the sum of the squares of Igr and Igc as in Equation 1.

[0034]

[0035] At this time, the event judgment criteria can be defined as shown in Table 1 below.

[0036] division Pickup conditions Duration repetition condition Overcurrent Load current 125% or more of the circuit breaker's rated current 30 minutes 10 or more times within 30 days leakage current Reflections Leakage current exceeding 20mA or resistive 10mA 15 minutes 5 or more times within 1 day Phase 3 Leakage current exceeding 50mA 15 minutes 5 or more times within 1 day

[0037] For determining overcurrent, one can refer to the method for selecting the allowable conductor current (at least 1.25 times) based on overload current in the Korean Electrical Equipment Regulations (KEC) Handbook and the minimum time of effective operation (60 minutes) among the operating characteristics of overcurrent circuit breakers, and for determining leakage current, one can refer to the relationship between current density and skin condition change according to current duration in KS C IEC TS 60479-1, but is not limited thereto.

[0038] The leakage current guide unit (330) can transmit a signal to the administrator terminal (100) when a signal is output from the leakage current inspection device (400). The administrator terminal (100) can extract the location of the apartment building or structure where the leakage current occurred and the unique identification code of the IoT device, and transmit an inspection request to the technician in charge of the location. At this time, a path optimization algorithm may also be used for on-site inspection scheduling.

[0039] The inspection management unit (340) can enable the technician terminal (500) to upload inspection results when the manager terminal (100) transmits an inspection request to the technician. When the technician terminal (500) uploads the inspection and repair results, the status is updated, and monitoring data is collected again from the leakage current inspection device (400) to check whether there is no leakage current, and if so, whether it is within the normal range, and the technician terminal (500) can be given confirmation regarding movement to the next site.

[0040] The leakage prediction unit (350) can construct a dataset of monitoring data output from an IoT device when a leakage occurs in the leakage inspection device (400), and extract data patterns when a leakage occurs using an anomaly detection algorithm. The anomaly detection algorithm may use, for example, a Local Outlier Factor (LOF) algorithm, but is not limited thereto. Then, a Decision Tree algorithm may be used to analyze the main cause of the data pattern. The LOF algorithm is an outlier detection technique based on density-based clustering rather than distance in multiple dimensions, and is a technique that facilitates non-linear detection of outliers by reflecting the differences in density between clusters of data.

[0041] In summary, the LOF algorithm is an effective technique for identifying data patterns in monitoring data that cause leakage current. Next, rather than simply identifying detected outliers, the Decision Tree algorithm can be utilized to compare and derive the characteristics of situations where leakage current occurs versus those where it does not, focusing on major causes. The Decision Tree algorithm is an analytical technique that establishes decision rules based on classification criteria and goodness of fit, classifying data in a tree-like structure; it is an analytical model that facilitates the systematic and hierarchical interpretation of analysis factors. Consequently, it becomes possible to identify which factors (variables) cause leakage current based on correlations, and by training the model based on this, it becomes possible to predict the occurrence of leakage current when these factors are detected.

[0042] The leakage prediction unit (350) is modeled to learn, verify, and test data patterns extracted by an anomaly detection algorithm in an artificial intelligence algorithm, and can transmit a prediction event predicting a leakage to an administrator terminal (100) when the data pattern is detected by the artificial intelligence algorithm.

[0043] The safety evaluation department (360) can predict the safety grade, degree of deterioration, and remaining lifespan according to the life cycle of the electric line in which the leakage current inspection device (400) is installed. Factors causing electrical disasters can be classified into electrical factors and environmental factors. In the case of electrical factors, inspection items such as visual inspection, insulation resistance measurement, suitability of separation distance, wire connection status, and grounding construction status can be set for electrical equipment such as incoming power lines (overhead power lines, underground power lines), switches, power fuses, circuit breakers, transformers (MOF, etc.), lightning arresters, protective relays, transformers, distribution boards, power capacitors, and emergency backup power generation facilities. In the case of environmental factors, evaluation scores for each item can be derived by dividing them into usage period, load rate, usage location, environmental location, and the impact on safety management by the electrical safety manager. At this time, the safety grade can be calculated after applying different weights to the derived electrical factors and environmental factors, respectively. Furthermore, soundness is an index that represents the condition of electrical equipment and can be evaluated based on diagnostic data; it can be based on the moisture content (%) of the equipment. Additionally, the remaining lifespan of electrical equipment can be predicted by utilizing the soundness index and Condition Based Maintenance (CBM) techniques. Through this, it is possible to propose the appropriate replacement timing for electrical equipment and provide optimized maintenance services by preventing failures in advance.

[0044] Energy Harvesting

[0045] The leakage current inspection device (400) can drive at least one IoT device using energy harvesting when constant power is not supplied to at least one IoT device while monitoring leakage current in at least one IoT device. For this purpose, magnetic energy harvesting (MEH) can be used. In this case, MEH may be composed of a magnetic energy harvester that generates electricity from a magnetic field and a power management circuit that converts the generated electricity and delivers it to a load. The harvester can be installed near places where large AC currents flow, such as substations or high-voltage cables. A strong magnetic field is generated around a conductor carrying AC current according to Ampere's law. Since the direction of the generated magnetic field changes according to the direction of the AC current, magnetic energy harvesting is possible by placing a coil nearby according to the law of electromagnetic induction.

[0046] A harvester device consists of a coil surrounding a magnetic material, such as a ferrite core, and can generate power using the phenomenon of electromagnetic induction. A power management circuit can convert the energy harvested from the harvester device from AC voltage to DC voltage through a rectifier circuit. If the converted DC voltage is not a preset DC voltage, a two-stage conversion process (AC-DC, DC-DC) can be performed using a DC-DC converter to convert it to a preset output voltage. The converted voltage can then be used to operate the power management circuit and drive the load. To efficiently deliver the power produced by the harvester device to the load, the size of the device, the number of turns, and the type of core are important. A larger harvester device typically implies a larger core and a greater number of coil turns, allowing for higher power output; however, having a large core and many coil turns is costly. Therefore, by considering the relationship between the size and power of the harvester element, a harvester element can be designed to generate large power even in a small size. To this end, the harvester element can use a ferrite core that provides small eddy current losses over a wide frequency range.

[0047] Hereinafter, the operation process according to the configuration of the leakage current inspection device of FIG. 2 described above will be explained in detail with reference to FIG. 3 and FIG. 4. However, it is obvious that the embodiment is merely one of the various embodiments of the present invention and is not limited thereto.

[0048] Referring to FIG. 3, (a) the integrated management server (300) maps and stores the address, location, and unique identification code of a leakage current inspection device (400) including at least one IoT device, and outputs monitoring data to allow a leakage current inspection to be performed on the administrator terminal (100) as in (b). Then, as in (c), when a leakage current occurs, the integrated management server (300) outputs a warning to the administrator terminal (100) so that the administrator terminal (100) can assign work to a field technician to perform inspection and repair. Also, as in (d), when the inspection results are uploaded from the field by the technician terminal (500), the integrated management server (300) checks whether the monitoring data of the leakage current inspection device (400) has returned to a normal range and can give the technician confirmation that they may move to the next site. In addition, the integrated management server (300) can extract data patterns in which leakage current occurs from an anomaly detection algorithm as shown in (a) of FIG. 4, and predict leakage current when a new data pattern is input by learning, verifying, and testing a dataset of [data pattern-leakage current] as shown in (b). Furthermore, by providing safety grades, aging levels, and remaining lifespans according to the life cycle of each electrical facility and electrical line, it can prevent accidents and increase the efficiency of maintenance.

[0049] As for the details regarding the method of providing the leakage inspection warning guidance service shown in FIGS. 2 to 4 that are not explained, they are identical to or can be easily inferred from the details regarding the method of providing the leakage inspection warning guidance service shown in FIG. 1, so further explanation will be omitted.

[0050] FIG. 5 is a diagram illustrating the process of transmitting and receiving data between each component included in the electrical line leakage inspection warning guidance system of FIG. 1 for multi-unit housing and buildings according to one embodiment of the present invention. Hereinafter, an example of the process of transmitting and receiving data between each component will be described through FIG. 5, but the present invention is not to be interpreted as being limited to such an embodiment, and it is obvious to those skilled in the art that the process of transmitting and receiving data illustrated in FIG. 5 may be changed according to various embodiments described above.

[0051] Referring to FIG. 5, the integrated management server maps and stores the unique identification code and location of at least one IoT device (S5100), and enables monitoring data monitored from at least one IoT device to be output to an administrator terminal (S5200).

[0052] And, the integrated management server transmits a signal to the administrator terminal when a signal is output from the leakage current inspection device (S5300), and when the administrator terminal transmits an inspection request to the technician, the technician terminal uploads the inspection results (S5400).

[0053] The order of the steps described above (S5100~S5400) is merely an example and is not limited thereto. That is, the order of the steps described above (S5100~S5400) may vary, and some of these steps may be executed simultaneously or deleted.

[0054] As for the details regarding the method of providing the leakage inspection warning guidance service of Fig. 5 that are not explained, they are identical to or can be easily inferred from the details regarding the method of providing the leakage inspection warning guidance service explained through Figs. 1 to 4 above, so further explanation will be omitted.

[0055] The method for providing a leakage current inspection warning guidance service according to one embodiment described through FIG. 5 may also be implemented in the form of a recording medium containing instructions executable by a computer, such as an application or program module executed by a computer. A computer-readable medium may be any available medium accessible by a computer and includes both volatile and non-volatile media, as well as removable and non-removable media. Additionally, a computer-readable medium may include all computer storage media. Computer storage media include both volatile and non-volatile, removable and non-removable media implemented by any method or technique for storing information such as computer-readable instructions, data structures, program modules, or other data.

[0056] The method for providing a leakage current inspection warning guidance service according to one embodiment of the present invention described above may be executed by an application basically installed on a terminal (which may include a program included in a platform or operating system, etc., basically installed on the terminal), or by an application (i.e., a program) directly installed by a user on a master terminal through an application providing server, such as an application store server, an application, or a web server related to the service. In this sense, the method for providing a leakage current inspection warning guidance service according to one embodiment of the present invention described above may be implemented as an application (i.e., a program) that is basically installed on the terminal or directly installed by a user, and may be recorded on a computer-readable recording medium such as a terminal.

[0057] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will understand that other specific forms can be easily modified without altering the technical spirit or essential features of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single unit may be implemented in a distributed manner, and components described as distributed may likewise be implemented in a combined form.

[0058] The scope of the present invention is defined by the claims set forth below rather than by the detailed description above, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts thereof should be interpreted as being included within the scope of the present invention.

Claims

Claim 1 delete Claim 2 delete Claim 3 A leakage inspection device comprising at least one IoT device provided for each electrical line, which monitors leakage in the electrical line from the at least one IoT device and outputs a signal when leakage occurs; a manager terminal that extracts the location of the multi-unit dwelling or building where leakage occurred and the unique identification code of the IoT device, and transmits an inspection request to a technician in charge of the location; and an integrated management server comprising a storage unit that maps and stores the unique identification code of at least one IoT device and its location, a monitoring unit that enables monitoring data monitored by the at least one IoT device to be output from the manager terminal, a leakage guidance unit that transmits a signal to the manager terminal when a signal is output from the leakage inspection device, and an inspection management unit that enables the technician terminal to upload inspection results when an inspection request is transmitted from the manager terminal to the technician. A system for warning guidance on electrical line leakage inspection of multi-unit housing and buildings, comprising: an integrated management server; wherein, when a leakage occurs in the leakage inspection device, the integrated management server constructs a dataset of monitoring data output from the IoT device, extracts a data pattern when a leakage occurs using an anomaly detection algorithm, models the data pattern extracted by the anomaly detection algorithm to be learned, verified, and tested by an artificial intelligence algorithm, and transmits a prediction event predicting a leakage to the administrator terminal when the data pattern is detected by the artificial intelligence algorithm; the system is further characterized by comprising: a leakage prediction unit. Claim 4 A leakage current inspection device comprising at least one IoT device provided for each electrical line, which monitors leakage current in the electrical line from the at least one IoT device and outputs a signal when leakage current occurs; a manager terminal that extracts the location of the multi-unit dwelling or building where leakage current has occurred and the unique identification code of the IoT device, and transmits an inspection request to a technician in charge of the location; and an integrated management server comprising a storage unit that maps and stores the unique identification code of at least one IoT device and its location, a monitoring unit that causes monitoring data monitored by the at least one IoT device to be output from the manager terminal, a leakage current guidance unit that transmits a signal to the manager terminal when a signal is output from the leakage current inspection device, and an inspection management unit that causes the technician terminal to upload inspection results when an inspection request is transmitted from the manager terminal to the technician; wherein the integrated management server comprises: a safety evaluation unit that predicts a safety grade, degree of deterioration, and remaining lifespan according to the life cycle of the electrical line where the leakage current inspection device is installed; A warning guidance system for electrical line leakage inspection of multi-unit housing and buildings, characterized by further including

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