KR101757258B1 - Mobile device with character recognition for the visiting metering and method of visiting metering using thereof - Google Patents

Mobile device with character recognition for the visiting metering and method of visiting metering using thereof Download PDF

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Publication number
KR101757258B1
KR101757258B1 KR1020160003915A KR20160003915A KR101757258B1 KR 101757258 B1 KR101757258 B1 KR 101757258B1 KR 1020160003915 A KR1020160003915 A KR 1020160003915A KR 20160003915 A KR20160003915 A KR 20160003915A KR 101757258 B1 KR101757258 B1 KR 101757258B1
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KR
South Korea
Prior art keywords
meter reading
meter
unit
information
server
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KR1020160003915A
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Korean (ko)
Inventor
김봉수
이남헌
조민진
유재준
김현종
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한전케이디엔주식회사
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
    • G01R22/061—Details of electronic electricity meters
    • G01R22/063—Details of electronic electricity meters related to remote communication
    • G06K9/3258—
    • H04M1/72522—
    • G06K2209/01—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/52—Details of telephonic subscriber devices including functional features of a camera

Abstract

The mobile unit for landing measurement with the built-in character recognition function of the present invention photographs a watt-hour meter installed in a customer, analyzes the photographed meter reading image to recognize the character, extracts and converts the meter information and the meter reading value from the recognized character And a mobile device for transmitting the measurement error message to an external meter reading server, wherein when the mobile device receives the meter reading error message from the meter reading server, it commands the meter reading error correction operation to be performed according to an instruction of the meter reading error message There are technical features.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile device for carrying out a visit and a method for performing a visit using the mobile device,

[0001] The present invention relates to a mobile device for a visit measurement having a built-in character recognition function, and a method of performing a visit meter reading using the same, more particularly, to a watt-hour meter installed in a customer, By using the mobile device that extracts and converts the meter information and meter reading value from the character to send it to the external meter reading server, the meter reader reads the meter through character recognition instead of reading the meter, And to a method for performing a visit metering using the mobile device for a visit and measurement using the same, which can improve customer satisfaction due to accurate billing.

In general, the meter reading task is a visit meter reading method in which a meter reading person directly visits a customer and visually meters the meter, and an remote meter reading method in which meter reading data is transmitted remotely to a meter reading server through a data concentration device (DCU) can do.

 According to the conventional visit inspection method, the metering probe reads the measured amount of the probe, which is confirmed through the meter, in the meter reading field corresponding to each address and the number of the customer based on the database data, The following problems could occur.

First, there is a problem in that the meter reading method mistakenly mistakenly reads a meter reading value or records an erroneous value.

Second, in the conventional visit inspection method, when there are a lot of meter reading tasks to be processed by the meter reading unit, the meter reading value of the meter reading unit is decreased due to the work load on the visual recognition, or due to the moral error of the meter reading units, There is a possibility of inputting the meter reading value.

Third, in the conventional visit inspection method, when a wrong usage fee is added to a customer due to a wrong meter reading value of the checkroom, an increase in customer complaints causes distrust of the meter reading administration, and accordingly, There was a waste problem.

Korean Patent Publication No. 10-2007-0079704

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method and apparatus for capturing a watt-hour meter installed in a customer, analyzing a captured meter image to recognize characters, extracting meter information and meter reading values from recognized characters, By using a mobile device, it is possible to improve meter accuracy and work efficiency by reading the meter by text recognition instead of reading the meter by the naked eye at the time of the meter reading work, and to improve the customer satisfaction due to accurate billing , A mobile device for visiting metering having a built-in character recognition function, and a method for performing a visit metering using the same.

According to an aspect of the present invention, there is provided a mobile device for use in a landing inspection having a built-in character recognition function, the mobile device including a watt-hour meter installed in a customer, And a mobile device that extracts and converts the meter reading value and transmits the meter reading value to an external meter reading server. When the mobile device receives the meter reading error message from the meter reading server, the meter reading error correction operation is performed according to the meter reading error message Quot ;. < / RTI >

According to another aspect of the present invention, there is provided a method for performing a visit metering using a mobile device for a visit measurement having a character recognition function, the method comprising: a first step of photographing a watt hour meter installed in a customer using a mobile device owned by a metering device; A second step of recognizing a character by applying a pattern recognition algorithm to the photographed image of the measurement; A third step of extracting meter information and a meter reading value of the watt hour meter from characters recognized through the second process; A fourth step of converting the format of the meter reading data extracted through the third process; A fifth step of transmitting the metering data converted through the fourth step to an external metering server; And a sixth step of confirming whether or not a meter reading error message transmitted from the meter reading server has been received and indicating an instruction of a meter reading error correcting operation according to an instruction of the meter reading error message according to the reception.

The present invention has the technical effect of improving the accuracy of metering and work efficiency by reading the meter through character recognition instead of reading the meter with the naked eye, and improving the customer satisfaction due to accurate billing .

FIG. 1 is a schematic diagram showing a relationship between a watt hour meter and a meter reading server when performing a visiting meter reading using a mobile device according to the present invention.
FIG. 2 is a detailed view of the configuration of a mobile device using character recognition in conducting visit metering according to the present invention.
FIG. 3 is a flowchart illustrating a method of performing a visit metering using a mobile device according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic diagram showing a relationship between a watt hour meter and a meter reading server when conducting a visit using a mobile device according to the present invention.

Referring to FIG. 1, the present invention takes a watt-hour meter 10 using a mobile device 100 with a built-in character recognition function, and analyzes the photographed image to calculate the meter information and the meter value of the watt- Etc., and transmits the recognized meter reading data to the meter reading server 20 to improve the efficiency of the meter reading operation.

In this case, the watt hour meter 10 is a device for measuring the amount of electric power installed on the customer side, and can be classified into a mechanical watt hour meter, a mechanical time spot, and an electronic watt hour meter, depending on the type of the device. E-Type, Advanced E-Type, and G-Type.

The mobile device 100 is a mobile terminal possessed by a metering probe at the time of a visit. In particular, according to the present invention, software capable of recognizing a character through a photographed image is built in. In this case, PDAs, tablet PCs (e.g., iPad, Galaxy Tab, etc.).

The meter reading server 20 recognizes the meter reading data transmitted from the mobile device 100 and stores the meter reading data in the meter reading database. After collecting, analyzing and processing the stored meter reading data, calculates the electricity usage fee of the consumer, do.

FIG. 2 is a detailed view of the configuration of a mobile device using character recognition in conducting visit metering according to the present invention.

Referring to FIG. 2, the mobile device 100 using character recognition in performing the visit metering according to the present invention includes an input unit 110, a photographing unit 120, a communication unit 130, a storage unit 140, A meter reading unit 170, a display unit 180, and a control unit 190. The meter reading unit 150, the meter reading error checking unit 160, the meter position inquiry unit 170,

The input unit 110 may be a keyboard, a mouse, a touch screen, or a touch pad. The input unit 110 may input various commands through a predetermined input unit.

The photographing unit 120 photographs the instrument number of the watt-hour meter 10 installed in the customer using a camera module built in a smartphone or the like possessed by the meter reading unit.

In this case, the camera module incorporates a digital CMOS or CCD chip, receives light received through the lens, and generates a RAW data signal of an RGB signal. The RAW data signal is transmitted to the controller 190, And implements the image processing of the photographed image through the meter reading data processing unit 150 under the control of the control unit 190.

The communication unit 130 provides an interface to enable communication with an external meter reading server 20 such as Zigbee, RF, WiFi, 3G, 4G, LTE, LTE-A (Wireless Broadband Internet), or the Internet, or a Social Network Service (SNS). However, the present invention is not limited thereto.

The storage unit 140 stores the meter reading data processed by the meter reading data processing unit 150 and various data processed by the controller 190 and may use a nonvolatile memory such as a flash memory as the storage medium.

The meter reading data processing unit 150 includes a character recognition module 151, a data recognition module 152, and a data conversion module 153, which is a part where the embedded character recognition software is operated.

The character recognition module 151 performs character recognition on the image of the instrument number acquired through the photographing unit 120 through an image processing process using a predetermined pattern recognition algorithm.

In this case, the pattern recognition algorithm can be applied to a numerical recognition algorithm through pattern comparison, for example, converting a photographed gray scale image into a binary image, taking only a portion where a number exists, A method of tracking outlines of existing models and storing them, removing noise existing in the search region of binary images, and selecting a model to be recognized among the models.

The data recognition module 152 extracts various meter information and a meter reading value from the recognized character through the character recognition module 151. [

In this case, the meter information refers to the information provided by the various watt-hour meters 10 in relation to the meter reading job, for example, the type of the watt-hour meter, the display contents, the display order number, the time zone discrimination and the instrument position information.

Table 1 below shows the type, display contents, display order number and time zone classification information of the low-pressure electronic watt-hour meter.

Figure 112016003458573-pat00001

As shown in Table 1, the low-pressure electronic watt-hour meter is divided into one type and two types. In the case of one type, ) Information.

On the other hand, in the case of the two types, information is provided for each item of display order numbers 01 to 12, for example, 01 (current date) to 12 (metering category / regular meter reading date).

The data conversion module 153 converts various types of meter information recognized by the data recognition module 152 and a data format of the meter reading value so that the meter reading server 20 can recognize the data type.

When the meter reading server 20 determines that the meter reading data transmitted from the mobile device 100 is invalid, the meter reading error checking unit 160 receives the meter reading error message from the meter reading server 20 to check the contents of the meter reading error, It allows the meter reader to correct the error according to the meter reading error indicated.

In this case, the meter reading error message may be, for example, when the meter reading value is blank and the contents can not be accurately recognized, or when there is a missing item among the low-voltage electronic meter reading items such as the missing meter reading error A message such as " Please shoot the third digit for effective watt hour meter recognition "is output to the display unit 180 so that the meter reading unit can immediately perform the meter reading error correction operation.

The gauge position inquiry unit 170 can search the position of the watt hour meter 10 to be inspected by the meter reading unit and grasp the optimum order information in a plurality of watt hour meter readings. In this case, (E.g., a Google map, etc.) along with an icon or the like.

In this case, the instrument position information means information stored in the database 20 before the meter reading operation, and the meter reading unit 20 searches the instrument position through the instrument position inquiry unit 170, And provides the meter position information to the mobile device 100 carried by the meter probe.

In addition, the instrument position information may include information on the watt-hour meter considering distance, traffic situation, and meter reading priority based on the current position of the meter probe.

The display unit 180 outputs a result of various commands processed by the controller 190 to a display device. The display unit 180 may be a display device such as an LED (Ligit Emitting Diode), an LCD Crystal Display), but the present invention is not limited thereto.

The control unit 190 includes an input unit 110, a photographing unit 120, a communication unit 130, a storage unit 140, a meter reading data processing unit 150, a meter reading error checking unit 160, a meter position inquiry unit 170, And controls the display unit 180.

FIG. 3 is a flowchart illustrating a method of performing a visit metering using a mobile device according to the present invention.

Hereinafter, a method of performing a visit metering utilizing the mobile device 100 according to the present invention will be described with reference to FIGS. 1 to 3. FIG.

First, there is a first step (S10) of photographing the instrument number of the watt hour meter 10 installed in the customer using the mobile device 100 possessed by the probe tip.

Next, a second step S20 of performing character recognition by applying a pattern recognition algorithm to the image of the instrument number photographed using the character recognition module 151 is performed.

Next, a third step (S30) of extracting various meter information and a meter reading value from characters recognized through the character recognition module 151 using the data recognition module 152 is provided.

Next, a fourth step (S40) of converting the data format of various meter information and the meter reading value recognized by the data recognition module 152 using the data conversion module 153 so as to be recognized by the meter reading server 20 ).

Next, a fifth step (S50) of transferring the converted meter information and the meter reading value data through the fourth process (S40) to the meter reading server 20 using the communication unit (130).

Next, a sixth step (S60) of checking whether the meter reading error message is received from the meter reading server 20 using the meter reading error checking unit 160 is provided.

If it is determined in step S60 that the meter reading server 20 has received the meter reading error message (YES), the process returns to the first process S10 to perform the first process S10 for the meter reading error correction operation, To the fifth step (S50).

If it is determined in the sixth step S60 that the meter reading server 20 has not received the meter reading error message (NO), that is, if the meter reading of the watt hour meter 10 of the customer is normally completed, And a seventh step (S70) of searching for the instrument position using the instrument position inquiry unit 170 and then moving the instrument position to the watt-hour meter 10 to be inspected optimally.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention.

10: Watt hour meter
20: meter reading server
100: Mobile devices
110: input unit
120:
130:
140:
150: meter reading data processing section
151: Character recognition module
152: Data Recognition Module
153: Data conversion module
160: Metering error check section
170:
180:
190:

Claims (6)

And a mobile device for capturing a watt-hour meter installed in a customer, analyzing a photographed image of the meter to recognize a character, extracting and converting meter information and a meter reading value from recognized characters, and transmitting the meter information to an external meter reading server,
When the mobile device receives the meter reading error message from the meter reading server, instructs the meter reading error correction operation to be performed according to an instruction of the meter reading error message,
The mobile device includes:
A photographing unit photographing the watt hour meter using a camera module;
A communication unit for providing an interface so that communication with the meter reading server can be implemented;
A character recognition module for performing character recognition through an image processing process by a pattern recognition algorithm on the image of the instrument number acquired through the photographing section; and a controller for extracting the meter information and the meter reading value from the character recognized through the character recognition module And a data conversion module for converting the data format of the meter information and the meter reading value recognized through the data recognition module so as to be recognized by the meter reading server;
A meter reading error checking unit for checking the meter reading error message transmitted from the meter reading server and instructing the meter reading error correction operation to be performed according to an instruction of the meter reading error message;
A gauge location inquiry unit for searching the location of the watt hour meter and displaying the searched location information in the form of an icon together with a digital map so that the meter reading resource can grasp the optimum order information at the time of reading the plurality of watt hour meters; And
And a controller for controlling the photographing unit, the communication unit, the meter reading data processing unit, the meter reading error checking unit, and the instrument position inquiry unit,
The instrument information includes:
A type of watt-hour meter, a display content, a display order number, a time zone classification, and gauge location information. delete delete A first step of photographing a watt hour meter installed in a customer using a mobile device owned by a meter reading unit;
A second step of recognizing a character by applying a pattern recognition algorithm to the photographed image of the measurement;
A third step of extracting meter information and a meter reading value of the watt hour meter from characters recognized through the second process;
A fourth step of converting the format of the meter reading data extracted through the third process;
A fifth step of transmitting the metering data converted through the fourth step to an external metering server; And
And a sixth step of confirming whether or not a meter reading error message transmitted from the meter reading server has been received and indicating an instruction of a meter reading error correction operation according to an instruction of the meter reading error message,
The mobile device includes:
A photographing unit photographing the watt hour meter using a camera module;
A communication unit for providing an interface so that communication with the meter reading server can be implemented;
A character recognition module for performing character recognition through an image processing process by a pattern recognition algorithm on the image of the instrument number acquired through the photographing section; and a controller for extracting the meter information and the meter reading value from the character recognized through the character recognition module And a data conversion module for converting the data format of the meter information and the meter reading value recognized through the data recognition module so as to be recognized by the meter reading server;
A meter reading error checking unit for checking the meter reading error message transmitted from the meter reading server and instructing the meter reading error correction operation to be performed according to an instruction of the meter reading error message;
A gauge location inquiry unit for searching the location of the watt hour meter and displaying the searched location information in the form of an icon together with a digital map so that the meter reading resource can grasp the optimum order information at the time of reading the plurality of watt hour meters; And
And a control unit for controlling the photographing unit, the communication unit, the meter reading data processing unit, the meter reading error checking unit, and the instrument position inquiry unit,
The instrument information includes:
Wherein the information includes a type of a watt-hour meter, a display content, a display order number, a time zone classification, and gauge location information. 5. The method of claim 4,
And returning to the first step when it is determined that the meter reading error message transmitted from the meter reading server has been received. delete
KR1020160003915A 2016-01-12 2016-01-12 Mobile device with character recognition for the visiting metering and method of visiting metering using thereof KR101757258B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020013369A1 (en) * 2018-07-13 2020-01-16 전자부품연구원 Method for learning electricity measurement text of electricity meter, using vision iot
KR20200019008A (en) * 2018-08-13 2020-02-21 주식회사동우유니온 Dynamic power menagement server and dynamic power management system using the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020013369A1 (en) * 2018-07-13 2020-01-16 전자부품연구원 Method for learning electricity measurement text of electricity meter, using vision iot
KR20200019008A (en) * 2018-08-13 2020-02-21 주식회사동우유니온 Dynamic power menagement server and dynamic power management system using the same
KR102238475B1 (en) * 2018-08-13 2021-04-09 주식회사동우유니온 Dynamic power menagement server and dynamic power management system using the same

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