WO2019182172A1

WO2019182172A1 - Automatic meter reading system, meter reading terminal, and electricity theft detection method using same

Info

Publication number: WO2019182172A1
Application number: PCT/KR2018/003282
Authority: WO
Inventors: 김민수
Original assignee: 누리플렉스 홀딩스 아이엔씨; (주)누리텔레콤
Priority date: 2018-03-21
Filing date: 2018-03-21
Publication date: 2019-09-26
Also published as: KR102040070B1; KR20190110667A

Abstract

Provided are an automatic meter reading system, a meter reading terminal, and an electricity theft detection method using same. An automatic meter reading system according to one embodiment of the present invention comprises: a meter for measuring the amount of power distributed to at least one customer from a transformer; a meter reading terminal for measuring power usage information of a customer; and a head-end system for determining whether electricity theft occurs in at least one meter reading terminal, on the basis of the measurement information of the meter and the power usage information of the meter reading terminal.

Description

Remote meter system, meter terminal and challenge detection method using same

The present invention relates to a remote meter reading system, a meter reading terminal, and a conductive sensing method using the same. More particularly, the present invention relates to a remote meter reading system capable of detecting a challenge or a power failure, and a meter reading terminal.

Instead of the direct metering method in which a meter reading person visits a customer directly and reads electricity consumption, a remote meter reading method that acquires and charges data such as power consumption of a consumer online from a metering server online using a communication network. Pushing the way.

Wireless meter reading through the advanced metering infrastructure (Advanced Metering Infrastructure), the meter reading the water use instructions value, and the computer operating center (eg, repeater, collector, CDMA) through the transmission unit (for example, the remote control) For example, in the present invention, it means a method of automatically transmitting the metered data to the "Head End System (HES)".

In particular, the transmission of the reading data measured by the reading terminal to the reading server uses a mobile communication network or an internet communication network that has already been established as a social infrastructure, and various attempts have been made in the data transmission method.

However, utilizing the existing remote metering system only as a metering system is a limited use of existing industrial technology, and it is necessary to add a function to a new situation according to various situations.

For example, in order to solve the power loss caused by the short circuit or the challenge that occurs frequently in real life, the data collection device receives the reading data of each customer in real time and compares the reading data with the existing data to check the abnormality of the power state. There is a method of judging and monitoring a short circuit or a challenge.

However, it may be difficult to receive data from the data collection device in real time when the power from the probe terminal is cut off. In this case, there is a problem in that the accuracy and reliability of the judgment in the data collection device must be improved.

For example, the technology for determining whether there is a short circuit or a challenge by comparing only the amount of active power supplied from a transformer with the amount of active power collected by a customer is unambiguous about the comparison value due to the difference in meter reading time for each meter There is a problem.

According to one embodiment of the present invention, as to easily determine whether or not the conductivity state of the meter terminal, it is easy to determine whether the conductivity in the data collection device to minimize the power waste that may occur.

According to one aspect of the present invention, a remote meter reading system includes a meter for measuring an amount of power distributed from a transformer to at least one consumer; A meter reading terminal for reading power usage information of the customer; And a head and system for determining whether or not a challenge occurs in at least one meter terminal based on the meter information of the meter and power usage information of the meter terminal.

In addition, the measuring instrument may transmit power failure information to the head and system when a power failure occurs.

In addition, the meter reading terminal, the current measuring unit for measuring a fine current flowing in the meter reading terminal; And a terminal controller transferring state information of the meter reading terminal to the head and system when the microcurrent is less than or equal to a preset threshold.

In addition, the meter reading terminal is capable of delivering the state information of the meter reading terminal to the head and system at least once even when the power of the meter reading terminal is cut off.

The head and system may determine that a challenge has occurred when the minute current measured by the meter terminal is less than or equal to a preset threshold, and the power consumption of the meter terminal is less than the preset threshold.

The head and system may receive power usage information from the meter reading terminal at predetermined time intervals, and determine whether the meter reading terminal has a conductivity from a power usage pattern analyzed from the received power usage information.

The head and system may determine that a challenge has occurred in the meter reading terminal when wireless communication with the meter reading terminal is impossible.

In another aspect, a conductive sensing method using a remote meter reading system may include: measuring an amount of power distributed by a meter installed in a transformer to at least one customer; Reading power usage information of the customer; And determining whether a challenge occurs in at least one meter terminal based on the measurement information of the measuring instrument and the power usage information.

The method may further include transmitting power failure information to the head and system when the power failure occurs.

In addition, measuring the fine current flowing in the meter reading terminal; And transmitting the state information of the meter reading terminal to the head and system when the microcurrent is less than or equal to a preset threshold.

The method may further include transferring the state information of the meter reading terminal to the head and system at least once, even when the power of the meter reading terminal is cut off.

The method may further include determining that a challenge has occurred when the fine current measured by the meter reading terminal is less than or equal to a preset threshold and the power consumption of the meter reading terminal is smaller than a preset threshold.

The method may further include receiving power usage information from the meter reading terminal at predetermined time intervals, and determining whether the meter reading terminal has a conductivity from a power usage pattern analyzed from the received power usage information.

The method may further include determining that a challenge has occurred in the meter reading terminal when wireless communication with the meter reading terminal is impossible.

According to another aspect of the present invention, a meter reading terminal includes: a meter for measuring an amount of power distributed from a transformer to at least one customer, and a terminal communication unit performing wireless communication with a head and system for determining whether or not to conduct a challenge; A meter for reading power usage information of the customer; A current measuring unit measuring a fine current; And a terminal controller for transmitting the state information of the meter reading terminal to the head and system when the microcurrent is less than or equal to a preset threshold.

In addition, even when the power of the meter reading terminal, the emergency operation unit for transmitting the state information of the meter reading terminal to the head and system at least once; may further include a.

According to one embodiment of the disclosed invention, it is possible to easily determine whether or not the conductive state of the meter reading terminal.

Therefore, the data collection device can easily determine whether or not a challenge occurs at the consumer side including the probed terminal.

Therefore, it is possible to minimize the power waste that can occur and occur on the consumer side.

1 is a diagram illustrating a relationship between a meter reading terminal, a head end system, and a remote meter reading system including a measuring instrument according to an exemplary embodiment.

2 is an internal block diagram of a remote meter reading system according to an embodiment.

3 is a control block diagram of the measuring instrument.

4 is a control block diagram of a head and system.

5 is a control block diagram of the meter reading terminal.

6 is a schematic diagram illustrating a challenge situation of a meter reading terminal according to an exemplary embodiment.

7 is a diagram for describing a method of operating a meter terminal, a head and system, and a measuring instrument according to an exemplary embodiment.

8A to 8C are diagrams for describing a method of determining a conductivity of the metering head and system.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are presented to sufficiently convey the spirit of the present invention to those skilled in the art. The present invention is not limited to the embodiments presented herein but may be embodied in other forms. The drawings may omit illustrations of parts not related to the description in order to clarify the present invention, and may be exaggerated to some extent in order to facilitate understanding. Hereinafter, a remote meter reading system, a remote meter reading method, and a meter reading terminal including the same will be described with reference to the accompanying drawings.

1 is a head end for obtaining meter reading information of at least one meter terminal 300 included in the remote meter reading system 1 and a meter 100 and a meter terminal 300 installed in a transformer and a meter terminal according to an embodiment. It includes a server constituting the system 200.

The meter reading terminal 300 may communicate with the head and system 200 through a wireless based network. Accordingly, the meter reading terminal 300 may be a high speed network or a low speed network.

In detail, the meter reading terminal 300 may transmit the collected data to the head and system 200 through a wireless based network.

Here, the wireless network refers to a module that supports at least one wireless communication scheme. Here, the wireless communication method is a long-term evolution (LTE), LTE Advance (LTE-A), code division multiple access (CDMA), wideband CDMA (WCDMA), universal mobile telecommunications system (UMTS), and wireless broadband (WiBro). ), And wireless communication methods for transmitting and receiving wireless signals through a base station such as Global System for Mobile Communications (GSM), as well as wireless LAN, wireless personal area network (WPAN), Wi-Fi (Wi-Fi), and Bluetooth ( Bluetooth (Z-wave), Z-wave, Zigbee, Wi-Fi Direct (WFD), Ultrawideband (UWB), Infrared Data Association (IrDA), Bluetooth Low Energy (BLE), Near Field NFC And a method of transmitting / receiving a wireless signal with an external device within a predetermined distance such as.

Hereinafter, when it is not necessary to describe the wireless communication method by type, such as a wave, Bluetooth, etc. will be simply referred to as a wireless communication method. In addition, hereinafter, it is simply referred to as a communication module when it is not necessary to distinguish the wireless communication module and the wired communication module.

In particular, a method of transmitting data to the head end system 200 by the meter reading terminal 300 includes a push-type packet that minimizes traffic (amount of data transmitted through a network) and a pull of a server S. There is a redundant data transmission method of circuit using the

The pull method establishes a connection whenever the server S is required for the meter reading terminal 300 and exchanges data, so that only the server S can make a connection request.

On the contrary, the push method is a structure in which the meter terminal 300 may transmit an urgent message to the server S in real time.

For example, the meter reading terminal 300 is controlled to enable at least one communication in the event of power failure or conduction, such as when the power of the meter reading is cut off, so that the status information of the meter reading terminal 300 is pushed. Transmit to head and system 200.

Next, FIG. 2 illustrates a relationship diagram of the remote meter reading system 1 according to an embodiment. Specifically, FIGS. 3 to 5 show the measuring instrument 100 and the head and system constituting the remote meter reading system 1. Detailed internal block diagram of the 200 and the meter reading terminal 300 is shown.

First, as shown in FIG. 2, the remote meter reading system 1 includes a head end for acquiring meter reading information of at least one meter terminal 300, a meter 100 installed in a transformer, a meter terminal 300, and a meter terminal. Including a server constituting the system 200 through the wireless communication between the meter 100 and the head and system 200 can be transmitted to the head and system 200, the metering information, the meter reading terminal 300 Load Profile (LP), power failure, or conductive information may be transmitted to the head and system 200.

A detailed internal block diagram of the specific measuring instrument 100 will be described with reference to FIG. 3, an internal block diagram of the head and system 200, and an internal block diagram of the metering terminal 300 through FIG. 5.

First, the measuring instrument 100 includes a CT control unit 101 and a CT communication unit 102. Such a measuring instrument 100 is installed in a transformer for adjusting the voltage of the high voltage power transmitted from the power plant. That is, the transformer may serve to distribute the voltage to the customer by lowering the voltage of the high voltage power to low pressure.

These transformers regulate the voltage in the transmission and distribution process, and the types of transformers include general column transformers, low loss column transformers, amorphous column transformers, self-diagnosis column transformers, column transformers with built-in protection devices, and high voltage column transformers. .

Meter 100 according to an embodiment is installed in such a transformer, the configuration includes a CT control unit 101, CT communication unit 102, and CT meter 103. Here CT stands for Current Transformer and can measure the power of the transformer.

Specifically, the CT meter 103 may measure the total amount of power provided by the transformer. In addition, the CT meter 103 may generate power failure information when a power failure occurs on the transformer side.

Next, the CT communication unit 102 may transmit power measurement information of the transformer collected by the CT meter 103 to the CT control unit 101 using at least one of a wired communication method and a wireless communication method. In this case, detailed descriptions of the wired communication module and the wireless communication module used by the CT communication unit 102 are the same as described above, and thus will be omitted.

In addition, the CT control unit 101 for controlling the overall operation of the measuring instrument 100 may be provided. The CT control unit 101 may be implemented through a processor, a processing device such as a micro control unit (MCU), and a memory.

In addition, the memory may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), RAM, or the like. Access Memory (RAM), Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM), Magnetic Memory, Magnetic Disk, It may be implemented through at least one type of storage medium of the optical disk. However, the present invention is not limited thereto and may be implemented in any other form known in the art.

The CT control unit 101 may generate a control signal and control the overall operation of the component of the instrument 100 through the generated control signal. For example, the meter 100 is provided with a memory, and the memory may store a control program and control data for controlling the operation of the meter 100. Accordingly, the CT control unit 101 may generate a control signal using data stored in the memory and control the overall operation of the measuring instrument 100 through the generated control signal.

For example, the CT control unit 101 is connected to a transformer and controls to accumulate measured power measurement information.

In addition, the CT control unit 101 controls to build a database by obtaining low pressure measurement information of at least one meter terminal 100 distributed through a transformer in which the measuring instrument 100 is installed.

Specifically, the CT control unit 101 measures the active power, reactive power, and power factor of the transformer into which power is drawn from the consumer side, and generates a transformer load profile supplied to the consumer side.

In addition, the CT control unit 101 internally controls the CT communication unit 102 to communicate with the head and system 200. For example, the CT control unit 101 transmits a wireless communication command to the CT communication unit 102, and the CT communication unit 102 transmits the power measurement information measured by the CT meter 103 according to the wireless communication command. ) And low pressure measurement information may be obtained from the meter reading terminal 300.

That is, both the transformer rod profile and the consumer load profile actually supplied to the consumer side in the transformer can be transmitted to the head and system 200.

Hereinafter, the internal structure of the head and system 200 will be described.

Head and system 200 is a kind of server, the data is read by the meter terminal included in the remote metering infrastructure (Advanced Metering Infrastructure) system, the data automatically read through the transmission unit (for example, repeater, collector, CDMA) It means the computerized operation center receiving the transmission.

That is, the head and system 200 may analyze the usage information based on the data collected from the meter reading terminal or the like, and determine whether there is an abnormality.

As shown in FIG. 4, the head and system 200 according to an exemplary embodiment may include a central controller 201, a central communication unit 202, and a central database 203. At least one of the central control unit 201, the central communication unit 202, and the central database 203 may be integrated in a system on chip embedded in the head and system 200. However, the present invention is not limited to having only one system on chip embedded in the head and system 200, and is not limited to being integrated on one system on chip.

The central communication unit 202 may exchange various data with an external device through at least one of a wired communication method and a wireless communication method, including at least one of a wired communication module and a wireless communication module. For example, the central communication unit 202 may receive various data collected by the meter 100 or the meter terminal 300.

The central database 203 stores data in the form of algorithms and programs that can control the overall operation of the head and system 200. The central control unit 201 uses data stored in the central database 203. The overall operation of the head and system 200 can be controlled.

Meanwhile, algorithms, programs, and various information stored in the central database 203 may be updated through a communication network. At this time, the update period is not limited, such as can be set in advance or set by the user.

The central controller 201 may control the overall operation of the head and system 200. For example, the central controller 201 may be implemented through a processing device such as a processor or an MCU.

As an example, the central control unit 201 may determine whether a power failure occurs from the information of the transformer in which the meter 100 is installed. That is, based on the load profile of the transformer transmitted by the measuring instrument 100 of the transformer may determine whether a power failure occurs in the region in which the transformer is installed.

In addition, the central control unit 201 analyzes meter reading information secured from at least one meter reading terminal 300 supplied with electric power distributed from a transformer provided with the measuring instrument 100.

For example, the central control unit 201 secured from the plurality of meter reading terminals 300 when it is determined that the region in which the transformer is installed does not occur based on the load profile of the transformer transmitted by the measuring instrument 100 of the transformer. Based on the meter reading information, the load profile data of the specific meter reader terminal 300 may determine that a challenge has occurred in the meter reader terminal 300 when the amount of usage varies significantly.

For example, when only the specific meter reading terminal 300 has a load profile usage value of '0', the central control unit 201 may determine that a challenge has occurred in the meter reading terminal 300.

Alternatively, the central controller 201 may determine that the meter reading terminal 300 in which wireless communication is not performed among the plurality of meter reading terminals supplied with the power distributed from the same transformer has a high probability of being a challenge.

At this time, the method of determining whether or not the central controller 201 is challenged based on the metering information and the state information secured from the meter 100 and the metering terminal 300 may be various.

For example, the central control unit 201 may determine whether or not the meter reading terminal 300 is challenged by analyzing the usage pattern transmitted by the specific meter reading terminal 300 at a predetermined time interval. Specifically, when the meter reading terminal 300 transmits the power usage information at a preset time (for example, every 15 minutes), the usage information is accumulated, and when the pattern different from the accumulated pattern is generated, it is determined that a challenge has occurred. Can be.

In addition, for example, the central controller 201 may determine whether a challenge is generated by analyzing a usage pattern of a plurality of meter terminals that receive power distributed from the same transformer.

The head and system 200 may directly receive the load profile and other usage information of the meter reading terminal 300, and after the instrument 100 first receives the usage information, the head and system 200 again through a communication method. This may finally be delivered.

Hereinafter, the internal structure of the meter reading terminal 300 will be described.

First, as shown in FIG. 5, the meter reading terminal 300 may be internally configured as an emergency operation unit 301, a current sensing unit 302, a terminal control unit 303, and a terminal communication unit 304.

First, the terminal communication unit 304 may exchange various data with an external device through at least one of a wired communication method and a wireless communication method, including at least one of a wired communication module and a wireless communication module. That is, as an example, the terminal communication unit 304 may transmit metering information (use information) of the meter reading terminal 300 to the head and system 200 and the meter 100, and the meter 100 or the head and system 200. You can receive power outages and other information.

Next, the terminal controller 303 collectively controls the meter reading terminal 300. In detail, the meter reading operation of the meter reading terminal 300 may be controlled, and the meter reading terminal controls the operation of the terminal communication unit 304 which transmits the metering information to the head and system 200 or the meter 100, and the meter reading terminal. Control the operation of the micro-current sensor mounted on the 300, it can be controlled to notify the head and system 200 once the usage information when the meter reading terminal 300 or more.

In detail, the current detector 302 detects a minute current flowing in the meter reading terminal 300. The current sensing unit 302 may include a fine current sensor.

Therefore, the current sensing unit 302 constantly measures the minute current flowing through the meter terminal 300 when the meter terminal 300 operates, and if the minute current does not flow (the measured minute current is '0 [A]'). The head and system 200 is notified that no microcurrent is present.

For example, when the micro current does not flow, the meter terminal 300 is in a conductive state, or the area of the meter terminal 300 may be an electrostatic state.

Specifically, FIG. 6 is an exemplary diagram for describing a case in which a fine current does not flow in the meter reading terminal 300.

For example, in the case of the normal meter reading terminal 300 that is not conducting, as shown in FIG. 6, a and b lines operate a meter to accumulate power consumption by flowing current into the meter terminal 300. The case is the operating method of the meter reading terminal 300 in the normal state. On the contrary, when the wire is diverted to the outside of the meter terminal 300 by a 'at the lower line a, or the wire is diverted to the outside of the meter terminal 300 by b', the meter meter that accumulates power consumption is not operated. Can be.

In this case, the current detector 302 does not detect the minute current inside the meter terminal 300. Therefore, the terminal controller 303 may determine that the meter reading terminal 300 or more and cut off the power of the meter reading terminal 300.

However, even if the power is cut off when the micro current is not detected, the terminal controller 303 transmits to the head and system 200 that an abnormality has occurred in the meter reading terminal 300.

At this time, the terminal control unit 303 operates the emergency operation unit 301 to enable communication when the power is cut off due to a power failure or a challenge to the meter reading terminal 300.

The emergency operation unit 301 may enable at least one communication even if power is cut off due to a power failure or a challenge.

Accordingly, the emergency operation unit 301 may transmit the usage information and the state information of the meter reading terminal 300 to the head and system 200 when the power is cut off.

In the above, the operation and control method of each component of the remote meter reading system 1 were demonstrated.

Hereinafter, the operation and control method for each component of the remote meter reading system 1 will be described.

FIG. 7 is a diagram illustrating a method of operating the meter terminal 300, the head and system 200, and the measuring instrument 100, according to an exemplary embodiment. FIGS. 8A to 8C illustrate a determination of the conductivity of the head and system 200. It is a figure for demonstrating a method.

First, as shown in FIG. 7, the meter reading terminal 300 transmits power usage information read by the meter reading terminal 300 to the head and system 200 at predetermined time intervals.

In addition, the meter reading terminal 300 may transmit the information of the meter reading terminal 300 to the head and system 200, the head and system 200 may transmit the information of the meter reading terminal received again to the measuring instrument.

However, unlike this, the meter reading terminal 300 may directly transmit information of the meter reading terminal to the measuring instrument 100.

In addition, when a power failure occurs in a transformer in which the corresponding instrument is installed, the measurement apparatus 100 may transmit the power failure information to the head and system 200.

At this time, the communication between the meter 100, the head and system 200 and the meter terminal 300 may be performed by wireless communication.

The meter reading terminal 300 continuously measures the microcurrent of the meter reading terminal 300 (701). Specifically, the current sensing unit 302 of the meter reading terminal 300 measures the minute current, and if a minute current exists (Yes of 702), the meter terminal 300 is abnormal because the current flows normally to measure the amount of power. Judging by the absence.

On the contrary, if the micro current is not present (NO of 702) during the micro current measurement, the current sensing unit 302 determines that the electric current or the power failure may occur, and transmits the micro current measurement information to the head and system 200. To pass.

At this time, even when the micro-current does not exist, and the meter terminal 300 cuts off the power, the meter terminal 300 may provide the emergency operation unit 301 capable of communicating with the head and system 200 at least once. Through the fine current measurement information may be delivered to the head and system 200.

Therefore, the head and system 200 is based on the power failure information obtained from the measuring device 100, the fine current measurement information obtained from the metering terminal 300, the power usage information, and the information of the metering terminal based on the corresponding metering terminal ( In step 710, it is determined whether a challenge occurs.

In this case, the method of determining whether the head and system 200 is conductive will be described later with reference to FIGS. 8A to 8C.

First, FIG. 8A is a flowchart illustrating a method of determining as a challenge when there is no load profile (LP) in the meter reading terminal 300, and FIG. 8B illustrates a method of determining a challenge when the pattern is different from the acquired pattern. A flowchart illustrating a method is a flowchart illustrating a method of determining a challenge when wireless communication with a specific meter reading terminal 300 is not performed.

8A through 8C may be viewed as individual embodiments of a method of judging the challenge of the meter reading terminal 300 in parallel, but may be determined as a challenge when at least one of the embodiments of FIGS. 8A through 8C is satisfied. It may be.

For example, the head and system 200 does not have a load history of the specific metering terminal 300, is different from the obtained pattern, and determines that the metering terminal 300 is in a conductive state when the wireless communication is no longer performed. It may be.

First, as shown in FIG. 8A, the head and system 200 checks the load history LP of the metering terminal 300 having a fine current of '0' (810). In this case, when only the load history of the meter reading terminal 300 is '0' (YES in 811), the meter reading terminal 300 may be determined to be in a conductive state.

In this case, when only the load history of the meter reading terminal 300 is '0' (YES in 811), the reading of the meter reading terminal except for the specific meter reading terminal among the plurality of meter reading terminals 300 obtaining power distributed from the same transformer is performed. It means the case where the usage of the load history exists.

Next, as shown in FIG. 8B, the head and system 200 checks the load history LP of the metering terminal 300 having a fine current of '0' (820). At this time, the head and system 200 determines whether the power usage pattern and the current power consumption pattern abnormally obtained from the meter terminal 300 at a predetermined time interval continuously (821). At this time, if a power usage pattern of a different pattern from the acquired pattern is secured, it may be determined that the meter reading terminal 300 is in a conductive state. However, this may correspond to a case in which the power usage pattern has power usage having a difference between the power usage and a preset value or more.

Finally, as shown in FIG. 8C, the head and system 200 checks the load history LP of the metering terminal 300 having a fine current of '0' (830). However, when the head and system 200 does not perform the wireless communication between the head and system 200 and the meter reading terminal 300 smoothly (YES in 831), the meter reading terminal 300 is in a conductive state. You can judge.

In this case, the meter reading terminal 300 may transmit the state information and usage information of the meter reading terminal 300 to the head and system 200 at least once in an emergency state in which wireless communication is not performed smoothly.

Configurations shown in the embodiments and drawings described herein are only exemplary embodiments of the disclosed invention, there may be various modifications that can replace the embodiments and drawings of the present specification at the time of filing of the present application.

Also, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting and / or limiting the disclosed invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. As used herein, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It does not preclude the existence or addition of numbers or steps, operations, components, parts or combinations thereof.

In addition, terms including ordinal numbers such as “first”, “second”, and the like used in the present specification may be used to describe various components, but the components are not limited by the terms, and the terms are It is used only to distinguish one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term “and / or” includes any combination of a plurality of related items or any item of a plurality of related items.

In addition, as used throughout this specification, the terms "unit", "unit", "block", "member", "module" and the like are at least one. It may mean a unit for processing a function or an operation of. For example, it may mean hardware such as software, FPGA, or ASIC. However, "~ part", "~ group", "~ block", "~ member", "~ module" are not limited to software or hardware, and "~ part", "~ group", "~" Blocks "," ~ members "," ~ modules ", etc. may be components stored in an accessible storage medium and performed by one or more processors.

Claims

A meter for measuring the amount of power distributed from the transformer to the at least one consumer;

A meter reading terminal for reading power usage information of the customer;

And a head and system for determining whether or not a challenge occurs in at least one meter terminal based on the meter information of the meter and power usage information of the meter terminal.
The method of claim 1,

The measuring instrument,

A remote meter reading system for delivering power outage information to the head and system in the event of a power outage.
The method of claim 2,

The meter reading terminal,

A current measuring unit measuring a fine current flowing in the meter reading terminal; And

And a terminal controller for transmitting the state information of the meter reading terminal to the head and system when the microcurrent is less than or equal to a preset threshold.
The method of claim 3, wherein

The meter reading terminal,

A remote meter reading system capable of delivering status information of the meter reading terminal to the head and system at least once, even when the power of the meter reading terminal is cut off.
The method of claim 3, wherein

The head and system,

And a small current measured by the meter reading terminal is less than or equal to a preset threshold value, and when the power consumption of the meter reading terminal is smaller than a preset threshold amount, the remote meter reading system determines that a challenge has occurred.
The method of claim 5,

The head and system,

And receiving power usage information from the meter reading terminal at predetermined time intervals, and determining whether or not a challenge occurs in the meter reading terminal from a power usage pattern analyzed from the received power usage information.
The method of claim 6,

The head and system,

When the wireless communication with the meter reading terminal is impossible, the remote meter reading system that determines that a challenge has occurred in the meter reading terminal.
Measuring an amount of power distributed to at least one consumer by a meter installed in the transformer;

Reading power usage information of the customer; And

And determining whether or not a challenge has occurred in at least one meter reading terminal based on the measurement information of the measuring instrument and the power usage information.
The method of claim 8,

And transmitting power failure information to the head and system when the power failure occurs.
The method of claim 9,

Measuring a minute current flowing through the meter terminal; And

And transmitting the state information of the meter reading terminal to the head and system when the microcurrent is less than or equal to a preset threshold.
The method of claim 10,

And transmitting the state information of the meter reading terminal to the head and system at least once, even when the power of the meter reading terminal is cut off.
The method of claim 11,

Determining that a challenge has occurred when the microcurrent measured by the meter reading terminal is less than or equal to a preset threshold value and the power consumption of the meter reading terminal is smaller than a preset threshold usage. Detection method.
The method of claim 12,

Receiving power usage information from the meter reading terminal at predetermined time intervals, and determining whether or not a challenge occurs in the meter reading terminal from a power usage pattern analyzed from the received power usage information; Way.
The method of claim 13,

And determining that a challenge has occurred in the meter reading terminal when wireless communication with the meter reading terminal is impossible.
A terminal communication unit performing wireless communication with a meter for measuring the amount of power distributed from the transformer to the at least one consumer and a head and system for determining whether or not there is a challenge;

A meter for reading power usage information of the customer;

A current measuring unit measuring a fine current; And

A meter controller configured to transmit the state information of the meter terminal to the head and system when the microcurrent is less than or equal to a preset threshold;
The method of claim 15,

And an emergency operation unit for transmitting the state information of the meter reading terminal to the head and system at least once even when the power of the meter reading terminal is cut off.