JP2022178987A - Mobile terminal device, meter reading system, meter reading method, and program - Google Patents

Abstract

To improve the convenience of managing meter-reading meters.SOLUTION: A mobile terminal device 100 used in a meter reading system St provided with a management server 110 and a mobile terminal device 100 includes an imaging unit 501, an acquisition unit 502, a generation unit 503, and a transmission unit 504. The acquisition unit 502 acquires meter-reading item information indicating a meter-reading item according to the meter-reading meter from the management server 110. The image capturing unit 501 can capture an image of the meter-reading meter. The generation unit 503 generates a meter-reading result based on the image of the meter-reading meter captured by the imaging unit 501 and the meter-reading item information acquired by the acquisition unit 502. The transmission unit 504 transmits the meter-reading result generated by the generation unit 503 to the management server 110.SELECTED DRAWING: Figure 5

Description

The present invention relates to a mobile terminal device, a meter reading system, a meter reading method, and a program.

2. Description of the Related Art Conventionally, in offices, collective housing, and the like, meter reading meters for electricity, water, and the like are installed for each user such as a tenant or a resident. Various charges such as an electricity charge and a water charge are calculated based on the meter reading of the meter for meter reading. Normally, in the monthly public utility bill reading work, the work staff of each business office visits the installation location of the meter reading meter, reads the meter value, and reports it to the business office. Each establishment calculates a fee based on the reported meter reading and bills the user.

As a related technology, the meter reading data corresponding to the meter number to be inspected is received from the server and displayed, the meter reading value is acquired by character recognition from the image of the pointer value of the meter to be inspected, and the image and the meter reading value are obtained. It is disclosed that the received meter reading data is associated with the meter reading data and transmitted to the meter reading server (see, for example, Patent Literature 1).

Japanese Patent No. 6133479

However, in the conventional technology, since meter reading meters of different types cannot be collectively managed, there is a problem that the convenience of managing meter reading meters is low.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to improve the convenience of managing meter reading meters.

In order to solve the above-described problems, a mobile terminal device according to one aspect of the present invention is a mobile terminal device used in a meter reading system including a management device and a mobile terminal device. an acquisition unit that acquires meter reading item information indicating the meter reading item that has been read; an imaging unit capable of imaging the meter for meter reading; an image of the meter for meter reading that is imaged by the imaging unit; a generating unit that generates a meter reading result of the meter for meter reading based on meter reading item information; and a transmitting unit that transmits the meter reading result generated by the generating unit to the management device. It is a mobile terminal device.

In the above configuration, the meter for meter reading is a digital meter that displays numerical values in a plurality of lines, and the meter reading item information includes specific information for specifying a line to be read among the plurality of lines. The generation unit may generate the meter reading result by extracting the numerical value displayed in the line indicated by the specific information from the image of the meter reading meter.

In the above configuration, the meter reading meter is a rotary meter in which the number areas are arranged continuously for each digit, and the number area of each digit rotates according to the use of the meter reading object, and the generating unit includes: When each digit indicated by the image of the meter reading meter includes a digit indicating that the number area is in the middle of switching, one of the numbers is extracted based on the physical quantity determined from the two number areas in the middle of switching. , the meter reading result may be generated.

In the above configuration, a code identifying the meter reading meter is displayed near the meter reading meter, and the obtaining unit obtains the meter reading item information corresponding to the meter reading meter identified by the code. may

In the above configuration, the number of meters for meter reading is installed according to a plurality of users who reside in the building, and a request for transmission of the meter reading item information of each user is sent to the management device for each building. The acquisition unit may acquire the meter reading item information according to the user from among the meter reading item information received from the management device in response to the transmission request.

In order to solve the above-described problems, a meter reading system according to another aspect of the present invention includes a management device and a mobile terminal device, wherein the mobile terminal device responds to a meter reading meter from the management device. an acquisition unit that acquires meter reading item information indicating the meter reading item that has been read; an imaging unit capable of imaging the meter for meter reading; an image of the meter for meter reading that is imaged by the imaging unit; a generation unit that generates a meter reading result of the meter reading meter based on meter reading item information; and a transmission unit that transmits the meter reading result generated by the generation unit to the management device, wherein the management device comprises: and a management unit that manages the meter reading result received from the mobile terminal device.

In order to solve the above-described problems, a meter reading method according to another aspect of the present invention includes an imaging step in which a mobile terminal device used in a meter reading system including a management device and a mobile terminal device captures an image of a meter for meter reading. and based on the image of the meter reading meter captured in the imaging step and the meter reading item information indicating the meter reading item corresponding to the meter reading meter acquired in advance from the management device, the meter reading result of the meter reading meter is obtained. It is a meter-reading method characterized by performing processing including a generation step of generating and a transmission step of transmitting the meter-reading result generated in the generation step to the management device.

In order to solve the above-described problems, a program, which is another aspect of the present invention, causes a computer of a mobile terminal device used in a meter reading system including a management device and a mobile terminal device to capture an image of a meter for meter reading, generating a meter reading result of the meter reading meter based on the image of the meter reading meter and meter reading item information indicating a meter reading item corresponding to the meter reading meter obtained in advance from the management device, and generating the meter reading result; is transmitted to the management device, and the program is characterized by causing the processing to be executed.

ADVANTAGE OF THE INVENTION According to this invention, the convenience regarding management of the meter for meter reading can be improved.

It is a figure which shows an example of the system configuration|structure of meter-reading system St of this embodiment. 2 is an explanatory diagram showing an example of a hardware configuration of the mobile terminal device 100; FIG. 3 is an explanatory diagram showing an example of a hardware configuration of a management server 110; FIG. 4 is an explanatory diagram showing an example of a meter reading item information database DB1 stored by a management server 110; FIG. It is explanatory drawing which shows an example of meter-reading result database DB2 which the management server 110 memorize|stores. It is an explanatory view showing an example of functional composition of meter-reading system St. It is a sequence diagram which shows an example of the meter-reading process which the meter-reading system St performs. 4 is a flowchart showing an example of meter reading result generation processing performed by the mobile terminal device 100. FIG. 4 is a flowchart showing an example of digital meter reading value extraction processing performed by the mobile terminal device 100. FIG. It is an explanatory view showing an example of a digital meter. FIG. 4 is an explanatory diagram showing another example of a digital meter; 4 is a flowchart showing an example of rotary meter reading value extraction processing performed by the mobile terminal device 100. FIG. It is an explanatory view showing an example of a rotary meter.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(System configuration of meter reading system St)
FIG. 1 is a diagram showing an example of the system configuration of the meter reading system St of this embodiment. The meter reading system St includes a plurality of mobile terminal devices 100 and a management server 110 . In the meter-reading system St, a plurality of mobile terminal devices 100 and a management server 110 are connected via a wired or wireless network 120 . The network 120 is, for example, a LAN (Local Area Network), a WAN (Wide Area Network), the Internet, or the like.

The mobile terminal device 100 is a smart phone or a tablet terminal possessed by a work staff member of a business establishment that collects public utility charges such as electricity and water. The mobile terminal device 100 may be the work staff's personal property, or may be lent from the office. The management server 110 is a computer device that manages meter reading results and the like of the meter reading meter 130 installed in the building 140 . Building 140 is, for example, a business facility such as an office or a shopping center. However, the building 140 is not limited to business facilities, and may be residential facilities such as condominiums and apartments.

The meter reading meter 130 is installed, for example, for each user (tenant) in the building 140 . Each meter reading meter 130 is centrally provided at a specific location such as, for example, underground. Moreover, each meter reading meter 130 includes a plurality of types. Specifically, different types of meter reading meters 130 for each user, such as electricity meters, water meters, and gas meters, are centrally provided at a specific location. A user (tenant) is, for example, a store or an office. If the building 140 is a residential facility, the meter reading meter 130 may be provided for each resident near the entrance of each living room.

The meter reading meter 130 includes a digital meter and a rotary meter. The digital meter, which will be described in detail later with reference to FIGS. 9 and 10, is a digitally displayed meter. Digital meters include, for example, those in which numerical values are displayed in one line and those in which numerical values are displayed in a plurality of lines. The details of the rotary meter will be described later with reference to FIG. 12. For example, an analog meter in which a number area is continuously arranged for each digit, and the number area of each digit rotates according to the use of the meter to be read. is. In addition to such a meter, the meter reading meter 130 may be, for example, an analog meter with a rotating needle or an analog meter with a laterally moving needle.

The work staff uses the mobile terminal device 100 to take an image of the meter reading meter 130 . When the captured image of the meter reading meter 130 is obtained, the mobile terminal device 100 analyzes the captured image and detects the value of the meter. The mobile terminal device 100 transmits the meter reading result including the detected value to the management server 110 . When the management server 110 receives the meter reading result of the meter reading meter 130, the management server 110 updates the meter reading result. The management server 110 is an example of a management device.

In addition to the mobile terminal device 100 and the management server 110, the meter-reading system St of the present embodiment is connected to a management device of a provider who provides the system. The management device can access the management server 110, and can change settings of meter reading items for each user (client) and view meter reading results.

The meter-reading system St also includes a viewing terminal (not shown) that can be operated by the user. The viewing terminal is a smartphone, a tablet terminal, a personal computer, or the like. The user can use the viewing terminal to view meter reading results and change settings for meter reading items.

(Hardware Configuration of Mobile Terminal Device 100)
FIG. 2 is an explanatory diagram showing an example of the hardware configuration of the mobile terminal device 100. As shown in FIG. In FIG. 2 , the mobile terminal device 100 includes a CPU (Central Processing Unit) 201 , a ROM (Read Only Memory) 202 , a RAM (Random Access Memory) 203 , a memory 204 , a communication interface (communication I/F) 205 and an operation unit 206 . , a camera 207 , a microphone 208 , a display 209 , a speaker 210 and a GPS (Global Positioning System) unit 211 . Each part is connected by a bus 220 respectively.

The CPU 201 controls the entire mobile terminal device 100 . The ROM 202 records various programs. A RAM 203 is used as a work area for the CPU 201 . That is, the CPU 201 controls the entire mobile terminal device 100 by executing various programs recorded in the ROM 202 and the memory 204 while using the RAM 203 as a work area.

The memory 204 stores various data. A flash memory, for example, is used for the memory. The memory 204 stores various programs such as a meter reading application (application program).
The communication interface 205 is connected to a network and connected to other devices (eg, management server 110) via the network. Communication networks that function as networks include the Internet and mobile phone networks.

The operation unit 206 is a touch panel that displays a plurality of touch keys for inputting characters, numerical values, various instructions, etc., hard keys, and the like.
The camera 207 captures an image of a subject (for example, meter reading meter 130 or two-dimensional code). The camera 207 also reads bar codes and various two-dimensional codes. For the camera 207, for example, a CCD (Charge-Coupled Device) camera can be used.
A microphone 208 inputs the operator's voice.
The display 209 displays icons, cursors, menus, windows, characters, images, codes, and the like.

Speaker 210 outputs sound including voice.
The GPS unit 211 receives radio waves from GPS satellites and outputs information indicating the current position of the mobile terminal device 100 . In addition, the mobile terminal device 100 includes various sensors (eg, a gyro sensor, an acceleration sensor, etc.) not shown, and has a function of detecting various states of the mobile terminal device 100 (eg, inclination of the mobile terminal device 100). .

(Hardware Configuration of Management Server 110)
FIG. 3 is an explanatory diagram showing an example of the hardware configuration of the management server 110. As shown in FIG. 3, the management server 110 has a CPU 301, a ROM 302, a RAM 303, a memory 304, and a communication interface 305. FIG. Each part is connected by a bus 320 respectively.

The CPU 301 controls the entire management server 110 . The ROM 302 records various programs. A RAM 303 is used as a work area for the CPU 301 . That is, the CPU 301 controls the entire management server 110 by executing various programs recorded in the ROM 302 while using the RAM 303 as a work area.

The memory 304 stores various data. A flash memory, for example, is used for the memory. The memory 304 stores various programs such as a meter reading management program.
The communication interface 305 is connected to a network and connected to another device (for example, the mobile terminal device 100) via the network.

(Database stored by management server 110)
Next, the database stored by the management server 110 will be described with reference to FIGS. 4A and 4B.

(Meter reading item information database DB1)
FIG. 4A is an explanatory diagram showing an example of the meter reading item information database DB1 stored by the management server 110. As shown in FIG. In FIG. 4A, the meter reading item information database DB1 includes "meter reading pattern" and "meter reading item". The “meter reading pattern” is a summary of meter reading items, and is shown in the drawing as a building 140 . Note that the “meter reading pattern” is not limited to being summarized by the building 140, and may be summarized by any item. For example, the "meter reading pattern" can be summarized for each user (tenant), or for each meter reading classification such as electricity or water.

The "meter reading pattern (building)" includes items of facility and name.
The facility item indicates the name of the building 140 .
The name item indicates the name of the meter reading object such as electricity, water, and gas.

"Meter reading item" indicates items such as user, identification number, meter reading classification, code information, meter type, number of decimal places, rounding, and reading line.
A user is a tenant or a resident who resides in the building 140, and specifically includes a store name, an office name, a name, and the like. A meter reading meter 130 is installed in the building 140 for each user.
The identification number is identification information for identifying the meter reading meter 130 .
The meter reading classification indicates a meter reading target, and specifically, it is a classification such as electricity, water, and gas.
The code information indicates information for uniquely identifying the meter reading item of each meter reading meter 130 . Code information is represented by a bar code or a two-dimensional code. In this embodiment, the code information is represented by a two-dimensional code, which is pasted by a sticker or the like near the display of the meter reading meter 130 .
The meter type indicates the type of meter reading meter 130, and specifically indicates either a rotary meter or a digital meter.
The number of decimal places indicates the number of decimal places of the meter reading value obtained as the meter reading result. The number of decimal places is, for example, the number of digits to be entered in a form (daily report, monthly report, etc.).
The rounding indicates, for example, the rounding of the meter reading value of the analog meter, and specifically indicates rounding down, rounding up, or rounding off. Note that the number of decimal places and fraction processing can be arbitrarily set for each user.
In a digital meter capable of displaying numerical values in a plurality of lines, the reading line indicates the line in which the numerical value to be read is displayed among the plurality of lines. Specifically, 1, 2 , 3, and so on. A read line is an example of specific information.

(Meter reading result database DB2)
FIG. 4B is an explanatory diagram showing an example of the meter reading result database DB2 stored by the management server 110. As shown in FIG. In FIG. 4B, the meter reading result database DB2 includes items of result number, meter reading date, identification number, meter reading value, and image data.
The result number is identification information that identifies the meter reading result.
The meter reading date indicates the date when meter reading was performed.
The identification number is identification information for identifying the meter reading meter 130 .
The meter reading value indicates a value extracted from the image data according to the number of decimal places, rounding, and reading line in the "meter reading item".
The image data indicates image data of the meter reading meter 130 imaged by the mobile terminal device 100 .
Meter reading results corresponding to such result numbers are stored for several months or years in the past.

(Functional configuration of meter reading system St)
FIG. 5 is an explanatory diagram showing an example of a functional configuration of the meter reading system St. In meter-reading system St shown in FIG. The storage unit 511 stores the meter reading item information database DB1 shown in FIG. 4A and the meter reading result database DB2 shown in FIG. 4B. The communication unit 512 communicates with the mobile terminal device 100 . The management unit 513 manages the meter reading item information database DB1 and the meter reading result database DB2.

Note that the storage unit 511 is realized by the memory 304, for example. The communication unit 512 is implemented by the communication interface 305 . Management unit 513 is implemented by CPU 201 . That is, the CPU 301 implements the functions of the management unit 513 by executing the meter reading management program stored in the memory 204 .

The mobile terminal device 100 includes an imaging unit 501 , an acquisition unit 502 , a generation unit 503 , a transmission unit 504 and a request unit 505 . The imaging unit 501 is implemented by the camera 207 . Transmission section 504 is implemented by communication interface 205 . Acquisition unit 502 , generation unit 503 , and request unit 505 are realized by CPU 201 . That is, the CPU 201 executes the meter reading application stored in the memory 204 to implement the function of each unit.

The imaging unit 501 images the meter reading meter 130 . The acquisition unit 502 acquires meter reading item information (see FIG. 4A ) indicating meter reading items according to the meter reading meter 130 from the management server 110 . The generating unit 503 generates the meter reading result of the meter reading meter 130 based on the image of the meter reading meter 130 captured by the imaging unit 501 and the meter reading item information obtained by the obtaining unit 502 .

Specifically, the generation unit 503 analyzes the image of the meter reading meter 130 and extracts the meter value. If the meter reading meter 130 is a digital meter, the generation unit 503 extracts the value of the reading line indicated by the meter reading item, and sets the extracted value to the number of decimal places indicated by the meter reading item to obtain the meter reading result. In this embodiment, part of the processing related to image extraction by the generation unit 503 is performed by machine learning.

The transmission unit 504 transmits the meter reading result generated by the generation unit to the management server 110 . The communication unit 512 of the management server 110 receives the meter reading result from the mobile terminal device 100 . The management unit 513 updates the meter reading result of the meter reading result database DB2 stored in the storage unit 511 based on the meter reading result received by the communication unit 512 .

In addition, when each digit indicated by the image of the rotary meter includes a digit indicating that the number area is in the middle of switching, the generating unit 503 generates a Extract that number to generate a meter reading result. Although the details will be described later with reference to FIG. 12, in this embodiment, the physical quantity is the distance (distances 1231 and 1232) from the central axis of each of the two numeric regions indicating the middle of switching. In addition, the generating unit 503 generates the meter reading result by extracting the shorter distance. Note that the physical quantity may be the area of each of the two number regions indicating the middle of switching. In this case, the generating unit 503 may generate the meter reading result by extracting the larger area.

(About reading two-dimensional codes)
The acquiring unit 502 identifies the meter reading meter 130 (user) that performs the meter reading by reading the two-dimensional code, and acquires the meter reading item information corresponding to the meter reading meter 130 . The two-dimensional code is displayed near the meter of the meter reading meter 130 and indicates information (code information) for identifying the meter reading meter 130 . The mobile terminal device 100 can read the two-dimensional code using the function of the imaging unit 501 (camera 207). Note that the mobile terminal device 100 is not limited to this, and the mobile terminal device 100 may be provided with a code reader, and the two-dimensional code may be read by the function of the code reader.

The reading of the two-dimensional code is performed at the same time when the meter reading meter 130 is imaged. In other words, the acquisition unit 502 extracts the image of the two-dimensional code from the image of the meter reading meter 130 and the image of the two-dimensional code captured by the imaging unit 501, and based on the image of the two-dimensional code, Get meter reading item information. When reading the two-dimensional code, the mobile terminal device 100 receives in advance whether or not to read the two-dimensional code. When reading the two-dimensional code is accepted, the acquisition unit 502 extracts the two-dimensional code from the captured image and acquires meter reading item information.

Note that the reading of the two-dimensional code and the imaging of the meter reading meter 130 may be performed by separate operations. In addition, the acquisition unit 502 is not limited to specifying the meter reading meter 130 (user) that performs meter reading by reading the two-dimensional code. For example, the acquisition unit 502 may identify the meter reading meter 130 (user) that performs the meter reading according to the operational input (operation for identifying the user) by the work staff.

(Regarding bulk download of meter reading item information for each building 140)
The request unit 505 requests the management server 110 to transmit the meter reading item information of each user for each building 140 . Specifically, the request unit 505 receives designation of the building 140 to be read while the meter reading application is running. Upon receiving the designation of the building, the request unit 505 makes the transmission request via the transmission unit 504 .

The timing of making the transmission request is, for example, before the work staff goes to the building 140 to be meter-read. For example, once a month, the mobile terminal device 100 accesses the management server 110 and makes a batch transmission request for meter reading patterns. As a result, the mobile terminal device 100 downloads the meter reading patterns all at once. The transmission request (the download) may be made before the meter reading date or may be made on the meter reading date. When the transmission request is made on the day of meter reading, the transmission request may be made, for example, before the work staff goes to the meter reading, or after the work staff goes to the building 140 where the meter reading is to be performed. good. Also, the transmission request (the download) may be made after the two-dimensional code is read.

After generating the meter reading results of the meter reading meter 130 , the generation unit 503 collects them for each building 140 . Then, the transmission unit 504 transmits the meter reading results compiled for each building 140 to the management server 110 . In addition, the transmitting unit 504 may transmit the meter reading result to the management server 110 for each meter reading result generated by the generating unit 503 .

(Meter reading process performed by meter reading system St)
FIG. 6 is a sequence diagram showing an example of meter reading processing performed by the meter reading system St. In FIG. 6, the mobile terminal device 100 determines whether or not the meter-reading application has started according to the operation of the work staff (step S601). The mobile terminal device 100 waits until the meter reading application is activated (step S601: NO), and when the meter reading application is activated (step S601: YES), the meter reading pattern (for example, the building 140) is designated (step S602). .

In specifying the meter-reading pattern, the mobile terminal device 100 may receive a keyword for search and display candidates. The keywords of the meter reading pattern are, for example, the name of the building 140, the address of the building 140, the name of the user, the meter reading classification, and the like. Upon receiving the designation of the meter reading pattern, the mobile terminal device 100 requests the management server 110 to transmit the meter reading pattern (step S603).

The management server 110 waits until receiving the transmission request (step S604: NO). When the transmission request is received (step S604: YES), the meter reading item information of the building 140 is specified from the meter reading item information database DB1 (step S605).

Then, the management server 110 collectively transmits the specified meter reading item information to the mobile terminal device 100 (step S606). As a result, the mobile terminal device 100 collectively downloads the meter reading item information for the building 140 . Then, the mobile terminal device 100 performs meter reading result generation processing (see FIG. 7) (step S608), and ends the series of processing. When the management server 110 receives the meter reading result from the mobile terminal device 100 through the meter reading result generation process of the mobile terminal device 100, it updates the meter reading result in the meter reading result database DB2 (step S609), and ends the series of processes.

(Meter reading result generation processing performed by mobile terminal device 100)
FIG. 7 is a flowchart showing an example of meter reading result generation processing performed by the mobile terminal device 100 . In FIG. 7, the mobile terminal device 100 determines whether or not to start meter reading of the meter reading meter 130 (step S701). Specifically, in step S701, the mobile terminal device 100 displays a meter reading start button for starting meter reading, and determines whether or not the button has been pressed.

The mobile terminal device 100 waits until the meter reading of the meter reading meter 130 starts (step S701: NO), and when the meter reading of the meter reading meter 130 starts (step S701: YES), the display is displayed near the meter reading meter 130. 9, 10, and 12) is determined (step S702). In step S702, for example, before the start of imaging, a selection button for whether or not the object contains the two-dimensional code QRC is displayed, and when the selection button is pressed, the two-dimensional code QRC is also read. It will be set to be On the other hand, if the selection button is not pressed, imaging is performed assuming that the two-dimensional code QRC is not included.

If it is set to capture the two-dimensional code QRC (step S702: YES), the portable terminal device 100 captures an image including the two-dimensional code QRC in response to button depression by the work staff (step S703). It should be noted that since the image capturing location is assumed to be dark, the mobile terminal device 100 may automatically turn on the light (flash), or may manually receive the lighting of the light. A light may be turned on.

Then, the mobile terminal device 100 identifies the meter reading meter 130 (user) to be read from the read two-dimensional code QRC (step S704). Then, the mobile terminal device 100 sets the meter reading item corresponding to the meter reading meter 130 specified in step S704 from among the meter reading item information received in advance (step S705).

On the other hand, if the two-dimensional code QRC is set not to be imaged in step S702 (step S702: NO), the mobile terminal device 100 accepts manual selection of various meter reading items such as the user name and meter reading classification (step S706). Specifically, for example, the portable terminal device 100 displays the meter reading item information of the meter reading meter 130 to be read from the list of meter reading item information received in advance so that the meter reading item information can be selected.

Then, the portable terminal device 100 captures an image that does not include the two-dimensional code QRC in response to the work staff pressing the button (step S707). Note that even if the two-dimensional code QRC is included in the imaging result in step S707, the mobile terminal device 100 does not recognize it as a code. Then, the mobile terminal device 100 sets the meter reading items accepted in step S706 (step S705).

After the process of step S705, it is determined whether or not the meter reading meter 130 to be read is a digital meter (step S708). It should be noted that the determination of whether or not the meter is a digital meter in step S707 may be made based on the set meter reading item, or may be made based on image analysis of the imaging result.

If the meter reading meter 130 to be read is a digital meter (step S708: YES), the mobile terminal device 100 performs digital meter reading value extraction processing (see FIG. 8) (step S709). On the other hand, if the meter reading meter 130 is not a digital meter (step S708: NO), that is, if the meter reading meter 130 is a rotary meter, the portable terminal device 100 performs the rotary meter meter reading value extraction process (Fig. 11) is performed (step S710).

Then, the mobile terminal device 100 determines whether meter reading has ended (step S711). If the meter reading is not finished (step S711: NO), the mobile terminal device 100 returns to step S701 and waits for the next meter reading of the meter reading meter 130 to start. If the meter reading is finished (step S711: YES), that is, if, for example, pressing of the meter reading end button is received, the mobile terminal device 100 collectively transmits the meter reading results of the building 140 to be meter reading to the management server 110. (step S712), and the series of processing ends.

(Regarding digital meter reading performed by mobile terminal device 100)
Next, digital meter reading performed by the mobile terminal device 100 will be described with reference to FIGS. 8 to 10. FIG. FIG. 8 is a flowchart showing an example of digital meter reading value extraction processing performed by the mobile terminal device 100 . FIG. 9 is an explanatory diagram showing an example of a digital meter. FIG. 10 is an explanatory diagram showing another example of the digital meter.

In FIG. 8, the mobile terminal device 100 reduces the image (step S801). Specifically, for example, since the image size may differ for each mobile terminal device 100 of the work staff, the image size is unified (reduced) to 300 pixels×300 pixels. Note that the size to be reduced is not limited to 300 pixels×300 pixels, and can be set to any size. Then, the mobile terminal device 100 reads the numerical value (step S802). In step S802, numerical values are read from the captured image by, for example, OCR (Optical Character Recognition).

Here, in FIGS. 9 and 10, the digital meters 900 and 1000 are attached with a two-dimensional code QRC and a user label Lb indicating the user. The work staff images the digital meters 900 and 1000 so that the user label Lb is captured. By managing such captured images (image data), it is possible to leave evidence (evidence) that meter reading has been performed.

Also, in reading the numerical values in step S802, the mobile terminal device 100 reads the numerical values 1001 one by one, as shown in FIG. 10(A). More specifically, in FIG. 10(A), "9", "6", "1", "0", "8", ".", "5" and numerical value 1001 are read one by one. . It should be noted that the mobile terminal device 100 can also discriminate the decimal point. As a result, the mobile terminal device 100 obtains the numerical value area 1002 of "96108.5" shown in FIG. 10B.

Further, when the reading of the numerical value 1001 is completed, the mobile terminal device 100 calculates the average value of the magnitude of the numerical value 1001 in the vertical direction and the horizontal direction. In some cases, the digital meters 900 (see FIG. 9) and 1000 are installed sideways, and in this case, the numerical values may not be read. In this case, the captured image is rotated by 90°, −90°, and 180°, the reading of the numerical values is attempted, and the read numerical values are adopted.

Next, the mobile terminal device 100 performs trimming (step S803). In trimming, the mobile terminal device 100 sets an area 1003 as shown in FIG. 10C. A region 1003 is formed by a horizontal width 1003a and a vertical width 1003b. The width 1003a indicates the length of 3.8 numerical values on the left and right sides of the numerical area 1002 respectively. The length of the width 1003a is obtained based on the average value of the lengths of the numerical values 1001 in the horizontal direction. The vertical width 1003b indicates the length of 2.6 numerical values above and below the numerical value area 1002 respectively. The vertical length of the vertical width 1003 b is obtained based on the average value of the vertical lengths of the numerical values 1001 . The size of the area 1003 (3.8 left and right, 2.6 upper and lower) is the size that enables the numerical value to be recognized with the highest accuracy as a result of extensive studies by the inventor.

After trimming, the mobile terminal device 100 obtains a trimmed image 1004 shown in FIG. 10(D). Then, the mobile terminal device 100 reads numerical values again from the trimmed image 1004 (step S804). In step S803, if there is no space for 3.8 numerical values in the horizontal direction and 2.6 numerical values in the vertical direction, the mobile terminal device 100 does not perform trimming in step S803 and re-reading in step S804. Then, the numerical value read in step S802 is obtained.

Here, machine learning is used in the reading of the numerical value in step S802 and the re-reading in step S804. For example, in the image reduction in step S801, the image size is set to a fixed size. Furthermore, in reading the numerical values in step S802, the display mode of characters to be read and the position of each numerical value identified in the XY coordinate system are identified based on learned data prepared in advance. As a result, it is possible to improve the recognition rate of numerical values from an image of 300 pixels×300 pixels. Similarly, when reading numerical values from the trimmed image 1004 in step S804, the display mode of characters to be read and the position of each numerical value specified by the XY coordinates are learned each time. Thereby, the recognition rate of numerical values from the trimmed image 1004 can be improved.

In this way, by using machine learning, it becomes possible to suitably read numerical values even with different types of digital meters 900 and 1000 . Also, the recognition rate when reading the numerical values of the digital meters 900 and 1000 can be improved.

After the process of step S804, the mobile terminal device 100 refers to the reading results of steps S802 and S804 and determines whether or not the numerical values are displayed in multiple lines (step S805). Specifically, the portable terminal device 100 determines that there are a plurality of rows when the read numerical values are not arranged in a row in the horizontal direction, and determines that the read numerical values are arranged in a row in the horizontal direction. be determined to be A digital meter 900 shown in FIG. 9 indicates that the number of read lines is a plurality of lines (three lines). Specifically, numbers are displayed on the display 910 in the first row 901, the second row 902, and the third row 903, respectively. Also, for example, the digital meter 1000 shown in FIG. 10 indicates that the number of reading lines is one.

In step S805, if there are not multiple lines (step S805: NO), the mobile terminal device 100 proceeds to step S807. On the other hand, when there are a plurality of lines (step S805: YES), the reading line is referred to among the meter reading item information, and the line for meter reading is specified among the plurality of lines (step S806). Even if there are a plurality of lines, if the lines to be read are not set, the designation by the work staff may be accepted.

Next, the mobile terminal device 100 refers to the number of decimal places in the meter reading item information, and displays the meter reading result (step S807). In the meter reading result, in addition to the meter reading value, meter reading items such as the user name, identification number, and meter reading classification are also displayed as input items. Then, in step S807, the mobile terminal device 100 outputs the meter reading result by voice or display, further displays a confirmation button for accepting confirmation of the meter reading result and a correction button for accepting correction of the meter reading result, and confirms. It is determined whether or not it is OK (the confirmation button has been pressed) (step S808).

The work staff visually confirms the meter reading result of the digital meter 1000, and presses a confirmation button if there is no correction in the output meter reading result. That is, if the confirmation is OK (step S808: YES), the mobile terminal device 100 proceeds to step S810. On the other hand, if pressing of the correction button is accepted, that is, if the confirmation is not OK (step S808: NO), the mobile terminal device 100 accepts correction of the meter reading result from the work staff (step S809). In addition, in the correction of the meter reading result, the correction of the meter reading value itself may be accepted, or the retake may be accepted. Further, in the correction of meter reading results, it is possible to correct various items such as the date. Then, the mobile terminal device 100 determines the meter reading result (step S810), and ends the series of processes.

(Regarding meter reading of rotary meter performed by mobile terminal device 100)
Next, reading of the rotary meter performed by the mobile terminal device 100 will be described with reference to FIGS. 11 and 12. FIG. FIG. 11 is a flowchart showing an example of rotary meter reading value extraction processing performed by the mobile terminal device 100 . FIG. 12 is an explanatory diagram showing an example of a rotary meter.

In FIG. 11, the mobile terminal device 100 reduces the image (step S1101). The reduced size is, for example, 300 pixels×300 pixels. Then, the mobile terminal device 100 reads numerical values from the captured image (step S1102). For example, in rotary meter 1200 shown in FIG. Note that the rotary meter 1200 may be installed sideways, and in this case, the numerical value may not be read. In this case, the captured image is rotated by 90°, −90°, and 180°, the reading of the numerical values is attempted, and the read numerical values are adopted. The mobile terminal device 100 obtains a numeric area 1201 by reading the numeric value.

Next, the mobile terminal device 100 performs trimming (step S1103). In trimming, the mobile terminal device 100 uses the numeric area 1201 . More specifically, as shown in FIG. 12A, a region 1202 is set in the horizontal direction by 1.2 times the numerical value region 1201 and in the vertical direction with the same size as the horizontal direction. After trimming, the mobile terminal device 100 obtains a trimmed image 1203 shown in FIG. 12(B). Then, the mobile terminal device 100 reads numerical values again from the trimmed image 1203 (step S1104).

Here, machine learning is used in reading the numerical values in steps S1102 and S1104. For example, in reading numerical values in steps S1102 and S1104, the display mode of characters to be read and the position of each numerical value specified in the XY coordinate system have been learned in advance. Therefore, in reading in steps S1102 and S1104, the position of the numeric area 1201 and individual numeric values can be obtained at the same time. In reading the numerical value in step S1102, it may be difficult to recognize the first digit, but even in this case, in reading the numerical value in step S1104, it is possible to easily identify the first digit. be.

After the process of step S1104, the portable terminal device 100 determines whether or not the read numerical value includes a numerical value (rotation numerical value 1220) indicating that the number area is in the middle of switching (step S1105). For example, a trimmed image 1203 shown in FIG. 12C includes a non-rotation value 1210 that is not in the middle of switching and a rotation value 1220 that indicates the middle of switching.

The non-rotating numerical values 1210 are displayed with the central axis 1210a of each numerical value positioned in the middle. The rotational numerical value 1220 includes an upper numerical value 1221 (eg, "8") and a lower numerical value 1222 (eg, "7"). The upper numerical value 1221 includes a numerical central axis 1221a. The bottom numerical value 1222 includes a numerical central axis 1222a.

In step S1105, if the numerical value (rotation numerical value 1220) indicating that the number area is in the middle of switching is not included (step S1105: NO), the mobile terminal device 100 proceeds to step S1107. If a numerical value (rotation value 1220) indicating that the number area is in the middle of switching is included (step S1105: YES), the mobile terminal device 100 performs rounding (step S1106). Here, as an example, fraction processing for rounding off will be described in detail.

As shown in FIG. 12(C), the portable terminal device 100 is a non-rotating center axis 1221a from the upper numerical value 1221 to the central axis 1210a of the non-rotating numerical value 1210 and from the central axis 1222a of the lower numerical value 1222. Compare the numerical value 1210 with the distance 1232 to the central axis 1210a. As a result of the comparison, the latter (distance 1232) is shorter, that is, the latter (distance 1232) is closer to the central axis 1210a than the former (distance 1231). Therefore, the mobile terminal device 100 determines the lower numerical value 1222 as the meter reading value of the rotation numerical value 1220 .

If rounding down is performed, for example, the lower numerical value 1222 is determined as the meter reading value of the rotational numerical value 1220 without considering the distance between the respective central axes 1221a and 1222a and the central axis 1210a of the non-rotational numerical value 1210. Just do it. In addition, if the rounding is performed, for example, the upper numerical value 1221 is determined as the meter reading value of the rotational numerical value 1220 without considering the distance between the respective central axes 1221a and 1222a and the central axis 1210a of the non-rotational numerical value 1210. Just do it.

After the process of step S1106, the mobile terminal device 100 refers to the number of decimal places in the meter reading item information, and displays the meter reading result (step S1107). In the meter reading result, in addition to the meter reading value, meter reading items such as the user name, identification number, and meter reading classification are also displayed as input items. Then, in step S1107, the mobile terminal device 100 outputs the meter reading result by voice or display, and further displays a confirmation button for accepting determination of the meter reading result and a correction button for accepting correction of the meter reading result. It is determined whether or not it is OK (the confirmation button has been pressed) (step S1108).

The work staff visually confirms the meter reading result of the rotary meter 1200, and presses a confirmation button if there is no correction in the output meter reading result. That is, if the confirmation is OK (step S1108: YES), the mobile terminal device 100 proceeds to step S1110. On the other hand, if pressing of the correction button is accepted, that is, if the confirmation is not OK (step S1108: NO), the mobile terminal device 100 accepts correction of the meter reading result from the work staff (step S1109). In addition, in the correction of the meter reading result, the correction of the meter reading value itself may be accepted, or the retake may be accepted. Further, in the correction of meter reading results, it is possible to correct various items such as the date. Then, the mobile terminal device 100 confirms the meter reading result (step S1110), and ends the series of processes.

As described above, in the meter reading system St according to the present embodiment, the mobile terminal device 100 generates a meter reading result based on the captured image of the meter reading meter 130 and the meter reading item information corresponding to the meter reading meter 130. and send it to the management server 110. Thereby, the portable terminal device 100 can easily obtain meter reading results of different types of meter reading meters 130 . In addition, the management server 110 can collectively manage different types of meter reading meters 130 . Therefore, the convenience of managing the meter reading meter 130 can be improved.

Further, in the present embodiment, a large number of meter reading meters 130 are concentrated in a specific location such as an underground location. The work load of the work staff can be reduced. In addition, it is possible to suppress meter-reading errors that may occur when reading the meter-reading meter 130, and to suppress mistakes such as erroneously associating the meter-reading meter 130 with the meter reading value. Furthermore, since the captured image of the meter reading meter 130 is recorded as a record required for the meter reading work, the meter reading proof can be left and the user can check it at any time as necessary.

Further, the mobile terminal device 100 according to the present embodiment extracts the numerical value displayed in the line to be read from the image of the meter reading meter 130 and generates the meter reading result. As a result, the management server 110 can collectively manage the meter reading results of the digital meter 900 that displays numerical values on multiple lines. Therefore, the convenience of managing the digital meter 900 can be improved.

In addition, when the image of the meter reading meter 130 includes a numerical value (rotation numerical value 1220 in FIG. 12) indicating that the number area is in the middle of switching, the mobile terminal device 100 according to the present embodiment can display two numbers in the middle of switching. Based on the physical quantity (distances 1231 and 1232 in FIG. 12) determined from the area, one of the rotation values 1220 is extracted to generate the meter reading result. Thereby, the management server 110 can collectively manage the meter reading results of the rotary meter 1200 as well. Therefore, the convenience of managing rotary meter 1200 can be improved.

Further, the mobile terminal device 100 according to the present embodiment acquires meter reading item information corresponding to the specified meter reading meter 130 by reading the two-dimensional code QRC from among the meter reading item information received from the management server 110. made it As a result, the mobile terminal device 100 can automatically input each of the meter reading items and the meter reading values by simply capturing the image of the two-dimensional code QRC and the meter reading meter 130 . Therefore, it is possible to further reduce the work load of the work staff.

In addition, the mobile terminal device 100 according to the present embodiment acquires meter reading item information corresponding to the user from among the meter reading item information of each user received from the management server 110 for each building 140 (downloads collectively). ). As a result, before starting the meter reading work, the work staff collectively downloads the meter reading item information (for example, for each tenant of the building they are in charge of) of the plurality of meter reading meters 130 for which the work is scheduled. can be done. Therefore, it is not necessary to communicate with the management server 110 for each meter 130 for meter reading during the meter reading work. Therefore, the meter reading work can be efficiently performed even at the meter reading site where the radio wave condition is poor.

All or part of the functional units (for example, the imaging unit 501, the acquisition unit 502, the generation unit 503, the transmission unit 504, and the request unit 505) included in the mobile terminal device 100 described in the present embodiment are It may be provided in another device different from the mobile terminal device 100 . Specifically, for example, all or part of these functional units may be provided in the management server 110, or may be provided in a computer device other than these.

Similarly for the management server 110, all or part of the functional units (for example, the storage unit 511, the communication unit 512, and the management unit 513) included in the management server 110 are provided in another device different from the management server 110. It may be implemented or implemented. Specifically, for example, all or part of these functional units may be provided in another computer device.

Moreover, the mobile terminal device 100 may function as a so-called thin client that specializes in an input/output interface. That is, the mobile terminal device 100 receives various inputs (operator's operation, detection of imaging, etc.), transmits input information (operation information, captured image, etc.) to, for example, the management server 110, and receives the input information. It may receive processing results (updated screen information, device control information, etc.) of the management server 110 based on the management server 110 and perform various outputs (display on the display 209, device control).

The functions of the mobile terminal device 100 and the management server 110 in the above-described embodiments may be realized by a computer. In that case, a program for realizing this function may be recorded in a computer-readable recording medium, and the program recorded in this recording medium may be read into a computer system and executed. It should be noted that the "computer system" referred to here includes hardware such as an OS and peripheral devices. The term "computer-readable recording medium" refers to portable media such as flexible discs, magneto-optical discs, ROMs and CD-ROMs, and storage devices such as hard discs incorporated in computer systems. Furthermore, "computer-readable recording medium" means a medium that dynamically retains a program for a short period of time, like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. It may also include a device that holds a program for a certain period of time, such as a volatile memory inside a computer system that serves as a server or client in that case. Further, the program may be for realizing part of the functions described above, or may be capable of realizing the functions described above in combination with a program already recorded in the computer system.

While several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, as well as the scope of the invention described in the claims and equivalents thereof.

St... Meter reading system DB1... Meter reading item information database DB2... Meter reading result database QRC... Two-dimensional code 100... Portable terminal device 110... Management server 130... Meter for meter reading 140... Building 201, 301... CPU 202, 302 ROM 203, 303 RAM 204, 304 memory 205, 305 communication interface 207 camera 501 imaging unit 502 acquisition unit 503 generation unit 504 transmission unit , 505... request unit, 511... storage unit, 512... communication unit, 513... management unit, 900, 1000... digital meter, 1200... rotary meter, 1231, 1232... distance

In order to solve the above-described problems, a mobile terminal device that is one aspect of the present invention is a mobile terminal device that is used in a meter reading system that includes a management device and a mobile terminal device. an identification information obtaining unit for obtaining, and meter reading item information including the identification information and indicating a type of meter reading meter for obtaining the meter reading item information based on the identification information obtained by the identification information obtaining unit . An item information acquisition unit, an imaging unit capable of capturing an image of the meter reading meter, and an image analysis of the imaging result of the meter reading meter based on the meter reading item information , thereby obtaining the meter reading indicated by the identification information. a generation unit that generates a meter reading result including a value ; and a transmission unit that transmits the meter reading result generated by the generation unit to the management device, wherein the generation unit is configured such that the meter reading meter is a digital meter. In this case, out of the image area indicated by the imaging result, a first image area based on the size of each of the numerical values constituting the numerical area is cut out, and the meter reading result is obtained by specifying the meter reading value from the first image area. If the meter reading meter is an analog meter, a second image area based on the overall size of the numerical value area is extracted from the image area indicated by the imaging result, and the meter reading value is specified from the second image area. The mobile terminal device is characterized in that the meter reading result is generated by doing .

In the above configuration, the digital meter includes a first meter that displays a plurality of lines including a line indicating a meter reading value and displays a numerical value in each line, and a first meter that displays only the line indicating the meter reading value and displays a numerical value and the meter reading item information includes specific information for specifying a meter reading target line among the plurality of lines, and the generating unit causes the meter reading meter to display the first In the case of a meter, the meter reading result is generated by specifying the numerical value displayed in the line indicated by the specific information from the image of the meter reading meter as the meter reading value , and the meter reading meter is the second meter. In some cases, the meter reading result may be generated by specifying the numerical value displayed in the line of the meter reading value as the meter reading value from the image of the meter reading meter.

In the above configuration, the analog meter includes a rotary meter in which numeric regions are arranged continuously for each digit, and the numeric regions of each digit are rotationally moved according to the use of the meter reading target, and the generator includes the If each digit indicated by the image of the rotary meter includes a digit indicating that the number area is in the middle of switching, one of the numbers is extracted based on the physical quantity determined from the two number areas that are in the middle of switching. , the meter reading result may be generated.

In the above configuration, a code indicating the identification information is displayed in the vicinity of the meter reading meter, the imaging unit images the code, and the identification information acquiring unit performs the identification information imaged by the imaging unit . The identification information may be obtained based on the imaged result of the code.

In the above configuration, the number of meters for meter reading is installed according to a plurality of users who reside in the building, and a request for transmission of the meter reading item information of each user is sent to the management device for each building. The meter reading item information acquisition unit may acquire the meter reading item information according to the user from among the meter reading item information received from the management device in response to the transmission request.

In order to solve the above-described problems, a meter reading system according to another aspect of the present invention includes a management device and a mobile terminal device, wherein the mobile terminal device stores identification information for identifying a meter reading meter. an identification information obtaining unit for obtaining, and meter reading item information including the identification information and indicating a type of meter reading meter for obtaining the meter reading item information based on the identification information obtained by the identification information obtaining unit . An item information acquisition unit, an imaging unit capable of capturing an image of the meter reading meter, and an image analysis of the imaging result of the meter reading meter based on the meter reading item information , thereby obtaining the meter reading indicated by the identification information. a generation unit that generates a meter reading result including a value ; and a transmission unit that transmits the meter reading result generated by the generation unit to the management device, wherein the generation unit is configured such that the meter reading meter is a digital meter. In this case, out of the image area indicated by the imaging result, a first image area based on the size of each of the numerical values constituting the numerical area is cut out, and the meter reading result is obtained by specifying the meter reading value from the first image area. If the meter reading meter is an analog meter, a second image area based on the overall size of the numerical value area is extracted from the image area indicated by the imaging result, and the meter reading value is specified from the second image area. The meter-reading system is characterized in that the meter-reading result is generated by doing so, and the management device includes a management unit that manages the meter-reading result received from the mobile terminal device.

In order to solve the above-described problems, a meter reading method according to another aspect of the present invention provides a meter reading system in which a mobile terminal device used in a meter reading system including a management device and a mobile terminal device receives identification information for identifying a meter for meter reading. an identification information obtaining step for obtaining, based on the identification information obtained in the identification information obtaining step, meter reading item information including the identification information and indicating a type of meter reading meter for obtaining the meter reading item information. An item information acquiring step, an imaging step of imaging a meter reading meter, and an image analysis of the imaging result of the meter reading meter based on the meter reading item information , thereby obtaining a meter reading value of the meter reading meter indicated by the identification information. and a transmission step of transmitting the meter reading result generated in the generating step to the management device, wherein the meter reading meter is a digital meter In the case of , out of the image area indicated by the imaging result, the first image area based on the size of each of the numerical parts constituting the numerical area is cut out, and the meter reading value is specified from the first image area. generating a result, and when the meter reading meter is an analog meter, cutting out a second image area based on the overall size of the numerical area from among the image areas indicated by the imaging result, and measuring the meter reading value from the second image area; The meter-reading method is characterized in that the meter-reading result is generated by specifying the .

In order to solve the above-described problem, a program, which is another aspect of the present invention, provides a computer as a portable terminal device used in a meter reading system including a management device and a portable terminal device , and an identifier for identifying a meter for meter reading. an identification information obtaining unit for obtaining information, and based on the identification information obtained by the identification information obtaining unit, the meter reading item information including the identification information and indicating a type of meter reading meter is obtained. A meter reading item information acquisition unit, an imaging unit capable of imaging a meter reading meter, and an image analysis of the imaging result of the meter reading meter based on the meter reading item information to generate a meter reading result including the meter reading value of the meter reading meter. and a transmitting unit that transmits the meter reading result generated by the generating unit to the management device, and the generating unit functions as an image indicated by the imaging result when the meter reading meter is a digital meter. A first image area based on the size of each numerical value portion constituting the numerical area is extracted from the area, and the meter reading result is generated by specifying a meter reading value from the first image area, and the meter reading meter is operated. In the case of an analog meter, the meter reading result is generated by cutting out a second image area based on the overall size of the numerical value area from the image area indicated by the imaging result, and specifying the meter reading value from the second image area. It is a program characterized by

Claims (8)

In a mobile terminal device used in a meter reading system comprising a management device and a mobile terminal device,
an acquisition unit that acquires meter reading item information indicating a meter reading item corresponding to the meter reading meter from the management device;
an imaging unit capable of imaging the meter for meter reading;
a generating unit configured to generate a meter reading result of the meter reading meter based on the image of the meter reading imaged by the imaging unit and the meter reading item information obtained by the obtaining unit;
a transmission unit that transmits the meter reading result generated by the generation unit to the management device;
A mobile terminal device comprising: The meter for meter reading is a digital meter that displays numerical values in a plurality of lines,
The meter reading item information includes specific information for identifying a meter reading target line among the plurality of lines,
The generation unit extracts the numerical value displayed in the row indicated by the specific information from the image of the meter reading meter to generate the meter reading result.
2. The portable terminal device according to claim 1, wherein: The meter for meter reading is a rotary meter in which a number area is continuously arranged for each digit, and the number area of each digit rotates according to the use of the meter to be read,
When each digit indicated by the image of the meter reading meter includes a digit indicating that the number area is in the middle of switching, the generation unit selects one of to generate the meter reading result by extracting the number of
3. The mobile terminal device according to claim 1, wherein: A code identifying the meter reading is displayed near the meter reading meter,
The acquisition unit acquires the meter reading item information corresponding to the meter reading meter specified by the code.
4. The portable terminal device according to any one of claims 1 to 3, characterized by: The meter reading meters are installed in a quantity corresponding to a plurality of users who reside in the building,
a request unit that requests transmission of the meter reading item information of each user to the management device for each building;
The acquisition unit acquires the meter reading item information according to the user from among the meter reading item information received from the management device in response to the transmission request.
5. The portable terminal device according to any one of claims 1 to 4, characterized in that: In a meter reading system comprising a management device and a mobile terminal device,
The mobile terminal device
an acquisition unit that acquires meter reading item information indicating a meter reading item corresponding to the meter reading meter from the management device;
an imaging unit capable of imaging the meter for meter reading;
a generating unit configured to generate a meter reading result of the meter reading meter based on the image of the meter reading imaged by the imaging unit and the meter reading item information obtained by the obtaining unit;
a transmission unit that transmits the meter reading result generated by the generation unit to the management device;
with
The management device includes a management unit that manages the meter reading results received from the mobile terminal device,
A meter reading system characterized by: A mobile terminal device used in a meter reading system comprising a management device and a mobile terminal device,
an imaging step of imaging the meter for meter reading;
A meter reading result of the meter reading meter is generated based on the image of the meter reading meter imaged in the imaging step and meter reading item information indicating meter reading items corresponding to the meter reading meter acquired in advance from the management device. a generating step that
A transmission step of transmitting the meter reading result generated in the generation step to the management device;
A meter reading method characterized by executing a process including. In the computer of the mobile terminal device used in the meter reading system equipped with the management device and the mobile terminal device,
Take an image of the meter for meter reading,
generating a meter reading result of the meter reading meter based on the captured image of the meter reading meter and meter reading item information indicating a meter reading item corresponding to the meter reading meter obtained in advance from the management device;
Sending the generated meter reading result to the management device,
A program characterized by executing processing.

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