KR20190130297A - Smart power meter having function for preventing fraudulent use and managing in real time by sending data through wifi and real time power managemnet system - Google Patents

Abstract

The present invention relates to a smart watt-hour meter having Wi-Fi transmission and unfair use prevention functions with real time management and a real time power management system. According to an embodiment of the present invention, the smart watt-hour meter includes: a converter for measuring a current applied to a load; an analog-to-digital (AD) converter for converting analog output from the converter into digital output; an input part for inputting data from the outside; a display part for displaying a power measurement value; a light emitting diode (LED) lamp for displaying state information; a storage part for storing programs and various data; a communication module providing near field communication; and a control part calculating current watt-hours with current data inputted from the AD converter, and performing control to transmit information about whether unfair use occurs through the communication module if the calculated current watt-hours satisfy a preset unfair use condition.

Description

SMART POWER METER HAVING FUNCTION FOR PREVENTING FRAUDULENT USE AND MANAGING IN REAL TIME BY SENDING DATA THROUGH WIFI AND REAL TIME POWER MANAGEMNET SYSTEM}

The present invention relates to a digital meter, and more particularly, to a smart meter and a real-time power management system having a Wi-Fi transmission function and a fraud prevention function capable of real-time management.

The electricity meter installed in each home or company is a device that measures and measures the active power of the connected circuit. The meter value is the amount of power consumed in the circuit between measurement times, and the unit is generally used in kWh.

Recently, digital electricity meters that measure the amount of electricity used digitally have been developed to provide various services of energy management. In addition, it is expected that demand will increase in newly developed cities with the introduction of a remote meter reading system.

On the other hand, the existing digital electricity meter has been a frequent dispute due to the lack of transparency between the meter and the meter in the fee system between the meter and the user. Accordingly, the reliability problem of the meter reading on the digital electricity meter is serious enough to generate new words such as electric charge bombs.

[Document 1] Korean Patent Registration Publication No. 10-1269131 Leakage Current Detection Apparatus Using Smart Multi-Channel Power Meter and Its Method (Samwoo TIC Co., Ltd.) 2013.06.23

Accordingly, an object of the present invention is to allow users to monitor usage history of charges in real time through wireless communication (for example, Wi-Fi transmission) capable of real-time management, as well as through data on past usage. It is to provide a smart meter and real-time power management system with Wi-Fi transmission function and real-time management that can plan the usage fee and prevent fraud.

In addition, an object of the present invention is to embed a system for preventing illegal use in the digital electricity meter to resolve disputes over the usage fee, and the Wi-Fi transmission function and irregularities capable of real-time management that can be quickly identified and replaced in case of failure It is to provide a smart electricity meter and a real-time power management system with an anti-use function.

Smart meter of the present invention for achieving the above object, Current transformer for measuring the current applied to the load; An analog to digital converter for converting the analog output of the current transformer into digital; An input unit for inputting data from the outside; A display unit for displaying the power measurement value; A light emitting diode (LED) lamp for displaying status information; A storage unit for storing a program and various data; A communication module for providing near field communication; And calculating a current power consumption amount using current data input from the AD converter, and transmitting information on whether the illegal use is used to the server through the communication module when the calculated current power consumption amount satisfies a preset misuse condition. And a control unit to control the control unit to control the control unit to control the control unit.

Preferably, the control unit, to control whether to display the illegal use through the LED lamp.

Preferably, the smart power meter further comprises a real time clock (RTC) for providing time information, wherein the control unit is configured to correspond to the time information counted by the RTC to calculate the calculated current power consumption. If it is determined that the power supply is blocked for a predetermined time based on the information stored in the storage unit, the storage unit determines that the illegal use condition is satisfied.

Preferably, the control unit controls to transmit the power consumption information stored in the storage unit to the server at predetermined intervals through the communication module.

Preferably, the communication module is characterized in that for supporting Wi-Fi communication.

Preferably, when receiving the power consumption information request from the manager terminal through the communication module, the control unit controls to transmit the power consumption information stored in the storage to the manager terminal through the communication module.

Preferably, the current transformer is formed in the form of a hook-on core, characterized in that the vertical contact portion of the hook-on core is less than 1μ.

The real-time power management system of the present invention for achieving the above object, a smart power meter; And a management server that analyzes power consumption-related data transmitted from the smart electricity meter to determine whether to use fraudulently, and inverts a cumulative time resulting from the fraudulent use to apply to a usage fee when a preset fraudulent use condition is satisfied. The smart wattmeter includes: a current transformer for measuring a current applied to a load; An analog to digital converter for converting the analog output of the current transformer into digital; An input unit for inputting data from the outside; A display unit for displaying the power measurement value; A light emitting diode (LED) lamp for displaying status information; A storage unit for storing a program and various data; A communication module for providing near field communication; And calculating a current power consumption amount using current data input from the AD converter, and when the calculated current power consumption amount satisfies a preset misuse condition, the management server sends information on whether the misuse is used through the communication module. The control unit for controlling to transmit to.

Preferably, the management server, based on the information received from the smart electricity meter, when it is determined that the power supply is cut off for a predetermined time, and determines that the illegal use condition is satisfied.

Preferably, the management server receives the power consumption information from the smart power meter every preset period.

Preferably, when the management server receives a request for power consumption information from a user terminal, the management server transmits the power consumption information to the user terminal.

Preferably, the current transformer is formed in the form of a hook-on core, characterized in that the vertical contact portion of the hook-on core is less than 1μ.

Preferably, the communication module is characterized in that for supporting Wi-Fi communication.

According to the present invention, the Wi-Fi transmission capable of real time management enables the user not only to monitor the usage history of the charge in real time, but also to plan the usage charge through data on past usage.

In addition, according to the present invention, it is possible to solve the dispute over the usage fee by embedding a system for preventing illegal use. For example, according to an exemplary embodiment of the present invention, by checking and inverting an illegal use time point, there is an effect of quickly collecting and coping with an effect of toll collection and a failure state.

In addition. According to the present invention, the risk of a fire can be eliminated by implementing the current transformer of the smart meter in a hookless connection without a terminal. For example, it is possible to prevent the occurrence of fire due to poor contact occurring in the terminal block, to prevent the risk of disconnection due to bolt breakage, and to prevent the deterioration of the contact portion between the terminal and the wire.

In addition, according to the present invention, it is possible to increase the work efficiency of the meter by reducing the meter reading time, and to read the pause value at a time so that the instructions of the meter do not change when the meter is read. Accordingly, in the prior art, it took about 15 minutes during the meter reading and wasted time, but according to the present invention, this can be solved.

In addition, according to the present invention, since the detection device such as the current transformer (CT) can be separated from the main body, there is an advantage that can be immediately confirmed when the detection device failure, easy to replace, improved accuracy.

In addition, according to the present invention, by adopting a digital detection and calculation method it is possible to efficiently implement a variety of necessary functions and display methods and to maximize the convenience for the user by monitoring the real-time power amount from the remote from the smartphone. According to an embodiment of the present invention, the power saving function may be improved by applying an idle mode to the smart electricity meter, and a protection system function may be built in, thereby contributing to the establishment of interest protection and commerce order.

1 is a view showing a smart power meter according to the present invention.
2 is a perspective view illustrating a main body of a smart watt hour meter according to an embodiment of the present invention.
Figure 3 is a block diagram showing the detailed structure of a smart electricity meter according to an embodiment of the present invention.
4 is a graph showing a characteristic curve of a CT according to an embodiment of the present invention.
5 is a diagram illustrating a real-time power monitoring system using a smart power meter according to an embodiment of the present invention.
6 is a signal flow diagram illustrating a real-time power amount monitoring procedure according to an embodiment of the present invention.
7 is a flowchart illustrating a procedure for preventing power fraud using according to an embodiment of the present invention.
8 is a diagram illustrating an analysis result provided by a database server according to an exemplary embodiment of the present invention.
9 is a diagram illustrating a result of analyzing power usage provided by a database server according to an exemplary embodiment of the present invention.
10A and 10B are diagrams illustrating a result of analyzing power usage provided by a user terminal according to an exemplary embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It is to be understood that the various embodiments of the invention are different, but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention with respect to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. Accordingly, the following detailed description is not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used in a sense that can be commonly understood by those skilled in the art. In addition, terms that are defined in a commonly used dictionary are not ideally or excessively interpreted unless they are specifically defined clearly.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention.

The present invention applies a hook-on core with improved accuracy by using a high-sensitivity historian core to a smart meter, and provides a smart meter and a real-time power management system that can monitor power in real time with an algorithm for preventing fraud. .

1 is a view showing a smart power meter according to the present invention. Referring to FIG. 1, the smart wattmeter according to the embodiment of the present invention may include a digital wattmeter 100 (or a digital wattmeter body) and a hook-on current transformer 110.

The digital power meter main body 100 may convert and store a current measured in real time through the current transformer 110 into a digital value, and transmit the stored data to a designated management server through short-range wireless communication. Detailed functions and structures of the digital wattmeter main body 100 will be described in detail later with reference to FIG. 2.

The hook-on current transformer 110 uses a high-sensitivity historian core, and processes the core of the hook-on current transformer 110 to maintain a surface within 1μ so as to maintain a surface within 1μ. It can be implemented to achieve harmony. Accordingly, the core of the hook-on current transformer 110 may have precision and increase the precision of the electricity meter.

The current transformer 110 and the digital electricity meter main body 100 may be connected by a wire, and the current transformer 110 and the digital electricity meter main body 100 may be detachable. For example, the wires connected to the current transformer 110 are separated, or the wires connected to the digital electricity meter body 100 are separated, so that the current transformer 110 and the digital electricity meter body 100 may be detachable. By implementing in this way, it is possible to immediately check in the case of a detection device failure, there is an advantage that can be replaced easily, the accuracy can be improved.

2 is a perspective view illustrating a main body of a smart watt hour meter according to an embodiment of the present invention. Referring to FIG. 2, the smart electricity meter body 100 according to the embodiment of the present invention may include an LED display 101, LED lamps 102a and 102b, and a reset key 103 on a front surface thereof. It may be configured to include a connection 104.

The LED display unit 101 may digitally display real-time power usage. The LED lamps 102a and 102b may display current power consumption state information based on the result measured by the digital electricity meter. According to an embodiment of the present invention, if it is determined that the fraudulent use is determined through the digital meter, the LED lamps 102a and 102b may light a predetermined color (eg, red) indicating that the fraudulent use is made. have. According to various embodiments of the present disclosure, if it is determined that the illegal use is performed, the LED lamps 102a and 102b may be repeatedly blinked at predetermined time intervals, or a warning sound may be output through a speaker.

The reset key 103 may reset the data of the digital electricity meter by a user inputting from the outside. The connection unit 104 may include a terminal for connecting a wire for supplying power to the digital electricity meter or a communication terminal for wired communication.

As described above with reference to FIG. 1, the current transformer 110 may be separately provided outside the digital wattmeter body 100 or may be included in the digital wattmeter body 100.

Figure 3 is a block diagram showing the detailed structure of a smart electricity meter according to an embodiment of the present invention. Referring to FIG. 3, the smart electricity meter 100 according to an embodiment of the present invention includes a control unit 310, a display unit 320, an input unit 330, an AD converter 340, a storage unit 350, and a communication module ( 360), and a real time clock (RTC) 370.

As described above, the current transformer 110 may be provided separately from the outside of the digital wattmeter body 100, but FIG. 3 illustrates that the current transformer 110 is included in the digital wattmeter body 100 for convenience of description.

Referring to FIG. 3, the current transformer 110 transmits a current corresponding to a current value flowing on a primary side of a power line to a secondary side, and then drops a resistance to detect a current flowing through the power line. The AD converter 304 converts the analog output of the current transformer 110 to digital to provide current data to the controller 310.

The controller 310 executes a program stored in the storage 350 to set time information or control various display functions according to the operation of the input unit 330, and the current data input from the AD converter 340. Measure the amount of power used. The measured power consumption may be stored in the storage 350.

According to various embodiments of the present disclosure, the real-time measured power usage stored in the storage 350 may be transmitted to the management server designated in advance through the communication module 360. In addition, various types of data may be received from the management server through the communication module 360 and stored in the storage 350.

The input unit 330 is provided with a setting key, an up key, a down key, etc. so that a user or a meter reader can set various types of data or control the display of the digital meter and process the meter reading.

The display unit 320 displays the real-time power measurement value under the control of the fisherman 310. In this case, the display unit 320 may be implemented as a liquid crystal display (LCD), an organic light emitting display device (OELD), a segment, or the like, and correspondingly includes a display driver (not shown) to operate as a driver of the corresponding display device. can do.

The communication module 360 is connected to the control unit 310 to transmit the real-time power measurement value to the external device by wireless or wired, and receives various setting data from the external device. The RTC 370 provides current time information to the controller 310, and the storage 350 stores various programs and data. In particular, in order to prevent data loss due to a power failure, main data (setting data, measured values, etc.) are stored in EEPROM, which is a nonvolatile storage unit, a program is stored in a ROM, and temporary data required during operation can be stored in RAM. have.

Although not shown in the drawing, a power supply unit for supplying power to each circuit element of the watt-hour meter may be further added, and the power supply unit may be connected to a battery so that the circuit element can operate even during a power failure.

According to an exemplary embodiment of the present disclosure, the controller 310 calculates a current power consumption amount using current data input from the AD converter 340, and when the calculated current power consumption amount satisfies a preset irregular use condition. The communication module 360 may control to transmit information on whether the illegal use is to a predetermined management server. In this case, the controller may control the display unit 320 (eg, an LED lamp) to display whether or not to use irregularly.

More specifically, the controller 310 stores the amount of power consumption measured in real time in the storage unit 350 corresponding to the time information counted by the RTC 370 for providing time information, and stores the storage unit ( If it is determined that the power supply is cut off for a preset time based on the information stored in the 350, it may be determined that the illegal use condition is satisfied.

The controller 310 controls to transmit the power consumption information stored in the storage 350 to the management server at predetermined intervals through the communication module 360. The communication module may support Wi-Fi communication.

According to an exemplary embodiment of the present disclosure, when the controller 310 receives a power consumption information request from an administrator terminal or a user terminal through the communication module 360, the controller 310 receives the power consumption information stored in the storage 350. The control may be controlled to be transmitted to the manager terminal or the user terminal through the communication module 360.

4 is a graph showing a characteristic curve of a CT according to an embodiment of the present invention. Referring to FIG. 4, the hook-on power-saving power meter according to the embodiment of the present invention processes the upper and lower contact portions of the hook-on current transformer using a high sensitivity history core to maintain a surface within 1 μ to provide excellent shielding characteristics and phase shift of the core. Harmonization of the characteristics used can be achieved.

5 is a diagram illustrating a real-time power monitoring system using a smart power meter according to an embodiment of the present invention. Referring to FIG. 5, a system according to an embodiment of the present invention includes a digital power meter 100, a communication network 510, a management server 520, a user terminal 530, and a manager terminal 540. Can be.

According to an embodiment of the present invention, the digital electricity meter 100 converts and stores the current measured in real time through the current transformer 110 into a digital value, and stores the stored data through the communication network 510 through the management server 520. Can be sent to. According to an embodiment of the present invention, when the current power consumption calculated by the digital electricity meter 100 satisfies a preset illegal use condition, the management server 520 receives information on whether the illegal use is used through the communication network 510. Can be sent to. According to an embodiment of the present invention, the digital electricity meter 100 may transmit power consumption information to the management server 520 at predetermined intervals through the communication network 510.

According to an embodiment of the present invention, when the digital power meter 100 receives a power consumption information request from the administrator terminal 540 or the user terminal 530 through the communication network 510, the consumption stored in the storage unit; Power amount information may be transmitted to the manager terminal 540 or the user terminal 530 through the communication network 510. In addition, according to an embodiment of the present invention, when the management server 520 receives various power-related monitoring information requests from the manager terminal 540 or the user terminal 530 through the communication network 510, the requested Power-related monitoring information may be transmitted to the manager terminal 540 or the user terminal 530 through the communication network 510.

The communication network 510 may be, for example, a cellular communication protocol, and may include, for example, at least one of LTE, LTE-A, CDMA, WCDMA, UMTS, WiBro, or GSM. In addition, the communication network 510 may be configured regardless of communication modes such as wired and wireless, and may include a personal area network (PAN), a local area network (LAN), and a metropolitan area network (MAN; It may be configured with various communication networks such as Metropolitan Area Network (WAN), Wide Area Network (WAN). In addition, the communication network 510 may be a well-known World Wide Web (WWW), and may use a wireless transmission technology used for short-range communication such as an infrared data association (IrDA) or Bluetooth. It may be.

The user terminal 530 or the manager terminal 540 according to various embodiments of the present disclosure may be, for example, a smartphone, a tablet personal computer, a mobile phone, a video phone, an electronic book. E-book reader, desktop personal computer, laptop personal computer, netbook computer, workstation, server, personal digital assistant, portable multimedia player, MP3 player, mobile medical device, camera, or wearable device (e.g. smart glasses, head-mounted-device (HMD)), electronic clothing, electronic bracelet, electronic It may include at least one of a necklace, an electronic accessory, an electronic tattoo, a smart mirror, or a smart watch.

6 is a signal flow diagram illustrating a real-time power amount monitoring procedure according to an embodiment of the present invention. Referring to FIG. 6, when the amount of power is measured 601 by the digital wattmeter 100, the measured value is stored 603 in the storage unit.

When a preset reporting period (eg, 1 minute) arrives, the stored data (eg, cumulative measurement values) may be transmitted to the predetermined management server 520. The digital electricity meter 100 may operate 607 in an idle mode until the next data transmission period after the data transmission. The power saving function can be improved according to the idle mode operation.

The management server 520 may store the accumulated measurement values received from the digital electricity meter 100 in a database (609) and automatically generate (611) statistical data. The generated statistical data may be provided to a user or an administrator in the form shown in FIGS. 8 and 9. For example, the statistical data may be provided in a table or a graph of real-time usage for each user. Accordingly, the user or the manager can establish a power management plan based on the statistical data. In addition, according to an embodiment of the present invention, the statistical data may include a blackout time recording, the blackout time recording may be used to determine whether the use of fraud, and if the pre-set irregular use condition is satisfied according to the fraudulent use The cumulative time can be inverted and applied to usage fees.

The user terminal 530 may request 613 power amount information to the management server 520, and the requested information may be provided to the user terminal 530. The user terminal 530 may display 617 information received from the management server 520 on the screen. For example, the user terminal 530 may display power usage related information in the form shown in FIGS. 10A and 10B.

7 is a flowchart illustrating a procedure for preventing power fraud using according to an embodiment of the present invention. Referring to FIG. 7, the digital electricity meter 100 may measure the amount of power 710 and store 720 the measured amount of power.

According to various embodiments of the present disclosure, when it is determined that the supply power cut-off state 730 (eg, the measured current is determined to be 0), the timer may be operated (T ₁ ). After the timer is operated, if the supply power cut-off state exceeds a specified threshold time T _th (for example, 5 minutes) (750), it is determined as illegal use, and the power cut-off time information is transmitted to the management server (760). Can be.

According to various embodiments of the present disclosure, if it is determined that the fraudulent use is made, the user may be alerted by lighting the red LED 770.

The present invention has been described above with the aim of method steps indicative of the performance of certain functions and their relationships. The boundaries and order of these functional components and method steps have been arbitrarily defined herein for convenience of description. Alternative boundaries and orders may be defined so long as the specific functions and relationships are properly performed. Any such alternative boundaries and orders are therefore within the scope and spirit of the claimed invention. In addition, the boundaries of these functional components have been arbitrarily defined for ease of explanation. Alternative boundaries may be defined so long as any important functions are performed properly. Likewise, flowchart blocks may also be arbitrarily defined herein to represent any important functionality. For extended use, the flowchart block boundaries and order may have been defined and still perform some important function. Alternative definitions of both functional components and flowchart blocks and sequences are therefore within the scope and spirit of the claimed invention.

The invention may also be described, at least in part, in terms of one or more embodiments. Embodiments of the invention are used herein to illustrate the invention, aspects thereof, features thereof, concepts thereof, and / or examples thereof. Physical embodiments of apparatus, articles of manufacture, machines, and / or processes embodying the present invention may be described in terms of one or more aspects, features, concepts, examples, etc. described with reference to one or more embodiments described herein. It may include. Moreover, in the entire drawing, embodiments may incorporate the same or similarly named functions, steps, modules, etc. that may use the same or different reference numbers, and as such, the functions, The steps, modules, etc. may be the same or similar functions, steps, modules, etc. or others.

In the present invention as described above has been described by the specific embodiments, such as specific components and limited embodiments and drawings, but this is only provided to help a more general understanding of the present invention, the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations are possible from these descriptions.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and all of the equivalents and equivalents of the claims as well as the claims to be described later belong to the scope of the present invention. .

100: digital electricity meter body 101: LED display unit
102a, 102b: LED lamp 103: Reset key
104: connection 110: current transformer
310: control unit 320: display unit
330: input unit 340: AD converter
350: storage unit 360: communication module
370: RTC 510: communication network
520: management server 530: user terminal
540: manager terminal

Claims (13)

Current transformer for measuring the current applied to the load;
An analog to digital converter for converting the analog output of the current transformer into digital;
An input unit for inputting data from the outside;
A display unit for displaying the power measurement value;
A light emitting diode (LED) lamp for displaying status information;
A storage unit for storing a program and various data;
A communication module for providing near field communication; And
The current power consumption is calculated using the current data input from the AD converter, and if the calculated current power consumption satisfies a preset misuse condition, the controller transmits information on whether the misuse is used to the server through the communication module. And a control unit for controlling the smart power meter.
The method of claim 1, wherein the control unit,
Smart power meter to control whether or not through the LED lamp to indicate whether or not use.
The smart power meter of claim 1, wherein
A real time clock (RTC) for providing time information;
The control unit,
If the calculated current power consumption is stored in the storage unit corresponding to the time information counted by the RTC, and it is determined that the power supply is cut off for a preset time based on the information stored in the storage unit, the illegal use Smart electricity meter which judges to satisfy condition.
The method of claim 1, wherein the control unit,
Smart power meter for controlling to transmit the power consumption information stored in the storage unit to the server at a predetermined period through the communication module.
The method of claim 1, wherein the communication module,
Smart meter, characterized in that supports Wi-Fi communication.
The method of claim 1, wherein the control unit,
And receiving the power consumption information request from the manager terminal through the communication module, and controlling the power consumption information stored in the storage unit to be transmitted to the manager terminal through the communication module.
The method of claim 1, wherein the current transformer,
Is formed in the form of a hook-on core, the upper and lower contact portion of the hook-on core, characterized in that less than 1μ, smart meter.
In a real time power management system,
Smart electricity meter; And
A management server that analyzes power consumption-related data transmitted from the smart electricity meter to determine whether to use fraudulently, and when a predetermined fraudulent use condition is satisfied, a management server that inverts a cumulative time resulting from the fraudulent use and applies it to a usage fee; and ,
The smart power meter,
Current transformer for measuring the current applied to the load;
An analog to digital converter for converting the analog output of the current transformer into digital;
An input unit for inputting data from the outside;
A display unit for displaying the power measurement value;
A light emitting diode (LED) lamp for displaying status information;
A storage unit for storing a program and various data;
A communication module for providing near field communication; And
The current power consumption is calculated using the current data input from the AD converter, and if the calculated current power consumption satisfies a preset misuse condition, information about whether the misuse is used is communicated to the management server through the communication module. And a control unit controlling to transmit the real time power management system.
The method of claim 8, wherein the management server,
On the basis of the information received from the smart electricity meter, if it is determined that the power supply is cut off for a predetermined time, it is determined that the illegal use condition is satisfied, real-time power management system.
The method of claim 8, wherein the management server,
Real-time power management system for receiving power consumption information from the smart electricity meter at predetermined intervals.
The method of claim 8, wherein the management server,
And receiving the power consumption information request from the user terminal, and transmitting the power consumption information to the user terminal.
The method of claim 8, wherein the current transformer,
It is formed in the form of a hook-on core, characterized in that the vertical contact portion of the hook-on core is less than 1μ, real-time power management system.
The method of claim 8, wherein the communication module,
Supporting Wi-Fi communication, real-time power management system.

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