KR102432912B1 - System for controlling power meter and Method for operating the same - Google Patents

Abstract

Disclosed is a watt-hour meter control system capable of simplifying a setting procedure of the watt-hour meter. The watt-hour meter control system may include an electronic watt-hour meter and a mobile communication terminal connected to the electronic watt-hour meter through short-range wireless communication to transmit setting information to the watt-hour meter.

Description

Power meter control system and its operating method {System for controlling power meter and Method for operating the same}

The present invention relates to a watt-hour meter, and more particularly, to a watt-hour meter control device for installing an electronic strategic watt-hour meter and setting its operation, and an operating method thereof.

Currently, research is being conducted on a remote meter reading system (AMR: Automatic Meter Reading) that remotely reads the amount of electricity used at home or at work. Such a remote meter reading system (AMR) is possible by replacing the existing mechanical watt-hour meter, that is, an induction watt-hour meter with an electronic watt-hour meter, and represents a service that remotely provides customer remote meter reading data to customers through the web-based Internet.

Through the introduction of such a remote meter reading system (AMR), customer service satisfaction has been greatly improved compared to the previous one, and there is an effect that a more transparent and convenient service is possible from the customer's point of view.

Here, the electronic watt-hour meter is divided into general household and industrial uses that require power consumption, and is installed in the power receiver to measure the amount of power used. In addition, such an electronic watt-hour meter uses an electronic circuit to measure various elements necessary for power measurement, and provides information on the measured values to the remote meter reading system (AMR).

In such an electronic watt-hour meter, the operator carries the electronic watt-hour meter to the installation site and sets the watt-hour meter through the following process.

① Open the upper cover of the watt-hour meter.

② Connect the battery.

③ Turn on the power.

④ Change to LOAD '0' mode.

⑤ Set the date.

⑥ Set the time.

⑦ Set the meter reading date.

⑧ Set the type.

⑨ Set the transmit/receive mode.

Therefore, an error occurs in inventory management when the input/output input of the watt-hour meter is omitted in the sales system. In addition, there is a disadvantage in that the setting procedure of the watt-hour meter is complicated.

In addition, there is a disadvantage in that excessive time is required due to simple repeat setting when the strategic meter is temporarily shipped to group customers (one-room, multi-family, etc.).

In addition, there is a disadvantage that external power must be applied when LOAD '0' is set in the field.

In particular, since such an electronic watt-hour meter has various functions built-in therein, the process of setting (setting) each function is essential before use. The functions of such an electronic watt-hour meter are gradually diversifying, and the setting process is also becoming more complicated, such as a method of inputting a program from the outside through a PC, in addition to the method of setting the internal program by pressing the button of the watt-hour meter.

However, due to the absence of a dedicated system for performing function setting tasks, many problems such as excessive work processing time, serious work inefficiency, and risk of safety accidents occur.

1. Korea Patent Registration No. 10-2013580 (Registration Date: August 19, 2019)

The present invention has been proposed to solve the problems according to the above background art, and an object of the present invention is to provide a watt-hour meter control system capable of simplifying the setting procedure of the watt-hour meter, and an operating method thereof.

Another object of the present invention is to provide a watt-hour meter control system capable of preventing an error in inventory management due to the input/output of the watt-hour meter, and an operating method thereof.

In addition, another object of the present invention is to provide a watt-hour meter control system capable of preventing excessive time due to simple repetitive setting and an operating method thereof.

The present invention provides a watt-hour meter control system that can simplify the setting procedure of the watt-hour meter in order to achieve the above object.

The power meter control system,

electronic watt-hour meter;

and a mobile communication terminal connected to the electronic watt-hour meter through short-range wireless communication to transmit setting information to the watt-hour meter.

In addition, the setting information includes a date that is the installation date of the watt-hour meter, a time that is an installation time, a meter reading date that indicates the date when the meter reading is made, a type that indicates the type of electricity bill, an integration mode that indicates when integration is performed, and a secondary power limit. It is characterized in that it includes a LOAD mode.

In addition, the setting information is characterized in that it is input in the form of an app.

In addition, the short-range wireless communication is characterized in that NFC (Near Field Communication).

In addition, the LOAD mode is characterized in that when the setting information is transmitted, the unlimited LOAD 'X' mode for the secondary power is automatically switched to the LOAD 'O' mode for limiting the secondary power. .

In addition, the installation time is characterized in that it is automatically set to the current time.

In addition, before transmitting the setting information to the electronic watt-hour meter, it is characterized in that the battery is connected to supply power to the components of the watt-hour meter.

On the other hand, another temporary embodiment of the present invention, (a) the electronic watt-hour meter is prepared; (b) generating setting information for setting the electronic watt-hour meter in the mobile communication terminal; (c) connecting the mobile communication terminal to the electronic watt-hour meter through short-range wireless communication; and (d) transmitting, by the mobile communication terminal, the setting information to the watt-hour meter.

In addition, in the step (d), when the setting information is transmitted, the LOAD 'X' mode of the LOAD mode, which is unlimited for the secondary power, is automatically changed to the unlimited LOAD 'O' mode for the secondary power. It is characterized in that it comprises;

In addition, the step (a), before transmitting the setting information to the electronic watt-hour meter, the step of making a connection of a battery to supply power to the components of the watt-hour meter; characterized in that it comprises a.

According to the present invention, the setting procedure of the watt-hour meter can be simplified by using a program installed in the mobile communication terminal.

In addition, as another effect of the present invention, installation time is saved even when the strategic meter is temporarily shipped to group customers (one-room, multi-family, etc.).

In addition, as another effect of the present invention, there is no need to apply an external power when LOAD '0' is set.

1 is a block diagram of a watt-hour meter control system according to an embodiment of the present invention.
FIG. 2 is a detailed configuration block diagram of the watt-hour meter shown in FIG. 1 .
3 is a detailed block diagram of the mobile communication terminal shown in FIG.
4 is a flowchart illustrating an installation process of a watt-hour meter according to an embodiment of the present invention.
5 is an example of a setting screen of a mobile communication terminal for setting a watt-hour meter according to an embodiment of the present invention.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and will be described in detail in the detailed description. However, this is not intended to limit the present invention to a specific embodiment, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

In describing each figure, like reference numerals are used for like elements. The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. The term “and/or” includes a combination of a plurality of related listed items or any of a plurality of related listed items.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. shouldn't

Hereinafter, a power meter control system and an operating method thereof according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a watt-hour meter control system 100 according to an embodiment of the present invention. Referring to FIG. 1 , the watt-hour meter control system 100 may include a watt-hour meter 110 and a mobile communication terminal 120 capable of communicating with the watt-hour meter 110 .

The watt-hour meter 110 is an electronic watt-hour meter, and may be an electronic watt-hour meter such as G-Type or AE-Type. The G-Type electronic watt-hour meter is a low-voltage electronic watt-hour meter that can be used for residential and commercial intelligent metering infrastructure (AMI). It can be a single-phase two-wire system or a three-phase three-wire system. AMI is a power metering infrastructure that enables two-way communication by installing a modem on an existing digital power meter.

The mobile communication terminal 120 is connected to the watt-hour meter 110 through short-range wireless communication and serves to set each function of the watt-hour meter 110 . In this case, NFC (Near Field Communication) may be mainly used as the short-range wireless communication, but is not limited thereto, and Wibro (Wireless Broadband), WiFi (Wireless Fidelity), Bluetooth (bluetooth), etc. may be used.

In addition, the mobile communication terminal 120 is a mobile phone (mobile phone), a smart phone (smart phone), a laptop computer (laptop computer), a digital broadcasting terminal, PDA (Personal Digital Assistants), PMP (Portable Multimedia Player), navigation, note It may be a pad or the like, and it is possible if the device is equipped with a wireless communication means. The wireless communication means may be a communication modem, a wireless LAN card, or the like.

FIG. 2 is a detailed configuration block diagram of the watt-hour meter 110 shown in FIG. 1 . Referring to FIG. 2 , the watt-hour meter 110 is

A current sensing unit 210 for detecting the amount of current flowing in the power supply line, a pulse generating unit 220 for generating a pulse, a power measuring unit 230 for outputting an amount of power value, and the power measuring unit 230 from the A microprocessor 240 that outputs a control signal for transmitting the provided value to an external device, a display 260 that displays information provided from the microprocessor 240 so that a user can recognize it, a mobile communication terminal and/or It may be configured to include a communication unit 280 for wireless communication with an external device.

The battery 201 performs a function of supplying spare power. In particular, it performs a function of supplying power for setting when the power strategy example 110 is installed. The battery 201 may be a secondary battery, a dry cell, or the like.

The current sensing unit 210 supplies a current to the power measuring unit 230 to determine the most important error characteristic in the watt-hour meter 110 .

The pulse generator 220 performs a function of recognizing a signal provided through the power supply line and generating a pulse.

The power measuring unit 230 lowers the input voltage to the resistance voltage dividing circuit and converts the current signal to convert the current signal and the input voltage from the current detection circuit to the power consumption through an integrated circuit (IC). It serves to generate a proportional electrical signal and transmit it to the microprocessor 240 . In addition, the measurement load is corrected with a variable resistor and the reference voltage of the signal processing unit is adjusted. That is, the power measuring unit 230 performs a function of converting the amount of current detected through the current sensing unit 210 and the pulse provided from the pulse generating unit 220 .

The microprocessor 240 accumulates power meter reading information of several generations at the same time when voltage signals sensed from each meter reading unit (not shown) sensing the power consumption of each household are respectively applied. As for the amount of power information, a digital type of metering number is displayed on the screen of the display 260 by a control signal of the microprocessor 240 .

When the pulse signal is applied from the power measuring unit 230 in the microprocessor 240, it is compared, determined, and controlled. When the user inputs an amount of electricity and any one of water, hot water, gas, and cooling/heating, a meter reading value thereof may be simultaneously displayed on the display 260 .

The power supply unit 250 performs a function of providing stable power to the circuit configured in the watt-hour meter 110 . That is, commercial AC power is supplied from a power supply line (POWER LINE) and converted into DC power to supply power to the components of the watt-hour meter 110 . To this end, the power supply unit 250 may include a rectifier circuit, a switching circuit, a converter, and the like.

The display 260 performs a function of displaying information processed by the watt-hour meter 110 , menu information for setting, input information input by a user, and the like. The display 260 may be a liquid crystal display (LCD), a light emitting diode (LED) display, an organic LED (OLED) display, a touch screen, a flexible display, or the like. When the display 260 is a touch screen, it may be used as an input means. Of course, the input means may be a speaker for voice input or a button for inputting a user's motion.

The pulse output unit 270 performs a function of outputting two LED signals for testing and two signals (a valid signal and an invalid signal) for use by an external user through optical insulation.

The communication unit 280 is connected to the mobile communication terminal 120 through wireless communication and performs a function of receiving installation information from the mobile communication terminal 120 . Of course, the communication unit 280 may perform wired communication as well as wireless communication. That is, a power line communication method that transmits using a frequency shift keying method or a dedicated line communication method using RS-485, RS-232, and RS-482 lines is possible. To this end, a wired modem, a power modem, or the like may be configured.

The communication unit 280 may be connected to a transmission control unit (TCU) (not shown). This TCU can be a component from which the home system is constructed.

The storage unit 290 performs a function of storing programs, software, data, etc. necessary for the operation of the microprocessor 240 . In addition, it performs a function of storing data processed by the microprocessor 240 .

The storage unit 290 includes a flash memory type, a hard disk type, a multimedia card micro type, and a card type memory (eg, Secure Digital (SD) or XD). (eXtreme Digital) memory, etc.), RAM (Random Access Memory, RAM), SRAM (Static Random Access Memory), ROM (Read Only Memory, ROM), EEPROM (Electrically Erasable Programmable Read Only Memory), PROM (Programmable Read Only Memory) ), a magnetic memory, a magnetic disk, and an optical disk may include at least one type of storage medium.

3 is a detailed block diagram of the mobile communication terminal 120 shown in FIG. Referring to FIG. 3 , the mobile communication terminal 120 may include a control unit 310 , a communication unit 320 , a memory unit 330 , a power supply unit 340 , an input unit 350 , an output unit 360 , and the like. can

The control unit 310 is a unit that executes various software or instruction sets to perform various functions for the mobile communication terminal 120 and process data. The control unit 310 may be implemented by a microprocessor or the like.

The communication unit 320 is a unit that converts an electrical signal into an electromagnetic wave or converts an electromagnetic wave into an electrical signal, and performs a communication function with the watt-hour meter 110 using the electromagnetic wave. The communication unit 320 is connected to the control unit 310 . The communication unit 320 may use various communication protocols for wireless communication and the like.

The memory unit 330 is a unit for storing software, an instruction set, or data for operating the mobile communication terminal 120 . The memory unit 340 is connected to the control unit 310 . The memory unit 330 includes a random access memory (RAM), a magnetic disk, a flash memory, a static random access memory (SRAM), and a read only memory (ROM). , EEPROM (Electrically Erasable Programmable Read Only Memory), PROM (Programmable Read Only Memory), etc., but is not limited thereto.

The power supply unit 340 performs a function of providing stable power to the watt-hour meter circuit. i.e. power

The input unit 350 is connected to the control unit 310 . The input unit 360 is a unit for receiving information from the user of the mobile communication terminal 120 using visual, auditory, tactile, or the like. The input unit 350 includes a touch sensor unit that receives information using a touch sensor, a button that receives input by pressing one key, a keyboard that receives input by pressing a plurality of keys, a microphone that receives sound, and receives information by taking a picture or image. It may include a camera that receives an input, but is not limited thereto. The touch sensor unit may be connected to a display unit which is one of the output units 360 to form a touch screen. The touchscreen may detect one or more touchpoints on the touchscreen based on any phenomenon that can be measured capacitively, resistively, optically, acoustically, inductively, mechanically, or chemically.

The output unit 360 is a unit for providing information to the user of the mobile communication terminal 120 using visual, auditory, tactile, or the like. The output unit 360 may include a display unit or light unit that provides visual information, a vibrator unit that provides tactile information, and a speaker that provides auditory information, but is limited thereto. it's not going to be The display unit displays information on the screen.

The display unit is implemented with various display panels, for example, a liquid crystal display (LCD), an organic light emitting diode (OLED), and a thin film transistor liquid crystal display (TFT-LCD). may be, but is not limited thereto. The light unit includes a light emitting body. The light unit may change color or provide information by blinking.

4 is a flowchart illustrating an installation process of a watt-hour meter according to an embodiment of the present invention. Referring to FIG. 4 , when the watt-hour meter 110 is installed in a specific place, the operator opens the upper cover of the watt-hour meter and connects the battery (steps S410 and S420 ).

Thereafter, a program is set in the mobile communication terminal 120 (step S430). In other words, the date, time, meter reading date, type, mode, etc. are input using the app installed in the mobile communication terminal 120 . Of course, the time may be automatically set to the current time.

Thereafter, the mobile communication terminal 120 is brought close to the power meter 110 (step S440). When the mobile communication terminal 120 is brought close to the watt-hour meter 110, input information is directly transmitted to the watt-hour meter 110, and the microprocessor 240 of the watt-hour meter 110 determines the date, time, meter reading date, and type of the watt-hour meter 110. , change the program according to the integration mode, etc. The date is the installation date, the time is the installation time, the meter reading date is the date when the meter reading is made, the type is the type of electricity bill, and the integration mode is a transmission/reception mode having both transmission and reception modes. Types of electricity rates include residential (low voltage), residential (high voltage), general (A) I, agricultural (A), agricultural (B), and industrial (A). The power transmission mode means that the power consumption is integrated only during transmission, the power reception mode means that the power usage is integrated only during the reception, and the transmission/reception mode means that the power usage is integrated for both the transmission mode and the reception mode. do.

Thereafter, the mobile communication terminal 120 is disconnected from the watt-hour meter 110 , and a power line is connected to the watt-hour meter 110 to supply power (step S450 ).

5 is an example of a setting screen of a mobile communication terminal for setting a watt-hour meter according to an embodiment of the present invention. Referring to FIG. 5 , a screen 500 is displayed on the output unit 360 of the mobile communication terminal 120 , and a watt-hour meter setting program 510 is displayed on the screen 500 . In the watt-hour meter setting program 510, a first input window 520 for inputting a date and time, a second input window 530 for inputting a meter reading date, and a third input for selectively inputting LOAD 'O' or LOAD 'X' A window 540 , an input button 550 for confirming input data, and a cancel button 560 for canceling input data may be configured.

LOAD 'O' is a function to set the LOAD 'X' mode to the LOAD 'O' mode to limit the secondary power supply when the watt-hour meter is delivered. That is, the LOAD 'X' mode is unlimited for the secondary power supply, and the LOAD 'O' mode is limited to the secondary power supply.

100: power meter control system
110: watt-hour meter
120: mobile communication terminal

Claims (13)

Electronic watt-hour meter 110;
and a mobile communication terminal 120 connected to the electronic watt-hour meter 110 through short-range wireless communication to transmit setting information to the watt-hour meter 110;
The setting information includes a date that is an installation date of the watt-hour meter 110, a time that is an installation time, a meter reading date that indicates the date when the meter reading is made, a type that indicates the type of electricity bill, an integration mode that indicates when integration is performed, and a secondary power supply. Includes limiting LOAD mode,
The setting information is entered in the form of an app,
The LOAD mode automatically converts the unlimited LOAD 'X' mode for secondary power to LOAD 'O' mode for limiting the secondary power when the setting information is transmitted,
The mobile communication terminal 120 is a smartphone or note pad,
On the screen 500 of the mobile communication terminal 120, a first input window 520 for inputting a date and time, a second input window 530 for inputting a meter reading date, and LOAD 'O' or LOAD 'X' are selectively selected. The watt-hour meter setting program 510 including a third input window 540 for input is displayed,
The LOAD '0' is a function of setting the LOAD 'X' mode to limit the secondary-side power supply to the LOAD 'O' mode when the watt-hour meter is delivered. delete delete The method of claim 1,
The short-range wireless communication is a watt-hour meter control system, characterized in that NFC (Near Field Communication).
delete The method of claim 1,
The installation time is a power meter control system, characterized in that automatically set to the current time.
The method of claim 1,
The watt-hour meter control system, characterized in that the battery 201 is connected to supply power to the components (240, 260, 280) of the watt-hour meter (110) before transmitting the setting information to the electronic watt-hour meter (110).
(a) the electronic watt-hour meter 110 is prepared;
(b) generating setting information for setting the electronic watt-hour meter 110 in the mobile communication terminal 120;
(c) connecting the mobile communication terminal 120 to the electronic watt-hour meter 110 through short-range wireless communication; and
(d) transmitting, by the mobile communication terminal 120, the setting information to the watt-hour meter 110;
The setting information includes a date that is an installation date of the watt-hour meter 110, a time that is an installation time, a meter reading date that indicates the date when the meter reading is made, a type that indicates the type of electricity bill, an integration mode that indicates when integration is performed, and a secondary power supply. Includes limiting LOAD mode,
The setting information is entered in the form of an app,
In the step (d), when the setting information is transmitted, the LOAD 'X' mode of the LOAD mode, which is unlimited for the secondary power source, is automatically set as a limit for the secondary power supply mode of the LOAD mode. The step of switching to LOAD 'O'mode; further comprising,
The mobile communication terminal 120 is a smartphone or note pad,
On the screen 500 of the mobile communication terminal 120, a first input window 520 for inputting a date and time, a second input window 530 for inputting a meter reading date, and LOAD 'O' or LOAD 'X' are selectively selected. The watt-hour meter setting program 510 including a third input window 540 for input is displayed,
The LOAD '0' is a function of setting the LOAD 'X' mode for limiting the secondary-side power supply to the LOAD 'O' mode when the watt-hour meter is delivered. delete delete 9. The method of claim 8,
The short-range wireless communication is an operating method of the watt-hour meter control system, characterized in that NFC (Near Field Communication).
delete 9. The method of claim 8,
In the step (a), before transmitting the setting information to the electronic watt-hour meter 110, the battery 201 is connected to supply power to the components 240, 260, 280 of the watt-hour meter 110; A method of operating a power meter control system, characterized in that.

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