JP7415173B2 - Method and program for selecting water heater mounting components, and measurement markers - Google Patents

Description

The present invention relates to a method and program for selecting a mounting member for a water heater, and more specifically, a method for selecting a mounting member for mounting a water heater to a pipe shaft in a house, etc., and a program for executing the method. , and a measurement marker used when carrying out the method.

When installing a water heater on a pipe shaft (also called a pipe space) in an apartment complex, etc., the water heater must be attached to a fixed frame placed inside the pipe shaft via a mounting member called a spacer or bracket. It will be done.

For example, Japanese Unexamined Patent Publication No. 2017-211135 (Patent Document 1) describes a mounting structure for increasing the mounting position of a water heater higher than before, and a bracket (mounting member) used therein.

Japanese Patent Application Publication No. 2017-211135

By attaching the water heater to the pipe shaft via the attachment member, the degree of freedom in terms of the size of the water heater that can be attached is improved. In particular, in the current situation where water heaters are becoming more compact, when replacing a water heater, it is important to compare the water heater before replacement, which is fixed to the pipe shaft via a mounting member, with the The size of water heaters tends to be significantly smaller. Therefore, it is important to appropriately select a mounting member that matches the size of the pipe shaft and water heater (after replacement).

However, in order to obtain the necessary dimensional information to select the appropriate mounting material, manual measurements are required, and the size of both the pipe shaft and the replacement water heater are taken into account to ensure proper installation. There is a concern that the series of work to select components will increase the workload of the constructor.

The present invention has been made in order to solve such problems, and an object of the present invention is to provide a solution for replacing the water heater and the water heater after the replacement, which is attached to the pipe shaft using the mounting member. The object of the present invention is to facilitate the selection of a mounting member suitable for the pipe shaft.

In one aspect of the present invention, there is provided a method for selecting an attachment member for attaching a water heater to a pipe shaft, the method comprising: (1) in a state where the first water heater and the attachment member before replacement are attached to the pipe shaft; (2) obtaining a photographic image of a front view of the pipe shaft in which a reference figure having known dimensions is included in the same image; (3) a composite image of a front view including a photographic image and positions of the plurality of cursors determined by the movement operations; (4) calculating each measurement value of the dimension of at least one part by a surveying operation based on a comparison between the distance between the plurality of cursors on the composite image and the dimension of the reference figure; 5) Receiving input of attribute information of the second water heater after replacement; (6) Calculating a database in which attribute information and tolerance ranges for each dimension are stored in advance for each of the plurality of types of mounting members. and selecting a mounting member suitable for the pipe shaft and the second water heater in the photographic image from a plurality of types of mounting members by referring to the measured values and the input attribute information.

In another aspect of the present invention, the program causes a computer including a processor to execute each step of the above-described method for selecting a mounting member for a water heater.

In still another aspect of the present invention, the measurement marker has a sheet shape on which a reference figure used in the above-described method for selecting a mounting member for a water heater is drawn.

According to the present invention, dimensional measurements can be calculated from an image of the water heater before replacement and the pipe shaft with the mounting member attached, without requiring actual measurements by an operator, and verified against a pre-built database. Accordingly, it is possible to easily select a mounting member suitable for the replaced water heater and the pipe shaft.

It is a figure explaining the attachment structure of the water heater to the pipe shaft of a standard type. It is a figure explaining the attachment structure of the water heater to the pipe shaft of the door installation type. It is a front view for explaining the dimensional information regarding the attachment member for the standard type pipe shaft. FIG. 3 is a front view of a photographic image for obtaining dimensional information of a standard type pipe shaft. It is a front view for explaining the dimensional information regarding the mounting member for the pipe shaft of the door installation type. FIG. 2 is a front view of a photographic image for obtaining dimensional information of a pipe shaft installed in a door. FIG. 1 is a conceptual diagram illustrating a communication system configuration for executing a water heater mounting member selection method according to the present embodiment. 8 is a schematic block diagram illustrating a configuration example of the terminal device shown in FIG. 7. FIG. 8 is a schematic block diagram illustrating a configuration example of the server shown in FIG. 7. FIG. It is a flowchart explaining the processing procedure of the mounting member selection method for a water heater according to the present embodiment. FIG. 2 is a first schematic diagram illustrating an example of a screen display when an application program is executed by a terminal device. FIG. 7 is a second schematic diagram illustrating an example of a screen display when an application program is executed by a terminal device. FIG. 7 is a third schematic diagram illustrating an example of a screen display when an application program is executed by a terminal device. It is a chart explaining an example of the structure of a database of mounting members that are selection targets. It is a schematic diagram explaining the example of a screen display when the pipe shaft of a door installation type is selected. FIG. 3 is a conceptual front view illustrating the position of a measurement marker when photographing a pipe shaft.

Embodiments of the present invention will be described in detail below with reference to the drawings. In the following, the same or corresponding parts in the figures will be denoted by the same reference numerals, and the description thereof will not be repeated in principle.

(Mounting structure of water heater to pipe shaft)
First, a structure for attaching a water heater to a pipe shaft will be explained using FIGS. 1 and 2. In this embodiment, two different types of pipe shafts, a PS standard installation type and a PS in-door installation type, will be described. In addition, "PS standard installation type" and "PS inside door installation type" are based on the "Installation Standards and Practical Guidelines for Gas Appliances (generally referred to as the "Black Book")" published by the Japan Gas Appliance Inspection Association. Defined. Hereinafter, the PS standard installation type will also be simply referred to as the "standard type", and the "PS in-door installation type" will also be simply referred to as the "in-door installation type".

FIG. 1 shows a structure for attaching a water heater to a standard type pipe shaft, and FIG. 1(a) is a front view of the water heater attached to a standard type pipe shaft. FIG. 1(b) is a conceptual perspective view for explaining the relationship between the pipe shaft, the mounting member, and the water heater.

Referring to FIGS. 1A and 1B, the water heater 10 is attached to a fixed frame 30 of a pipe shaft via a mounting member 20 serving as an adapter and a mounting member 21 serving as a cover.

The mounting member 20 is provided with screw holes 21a, 21b and 22a, 22b corresponding to the screw holes 31a, 31b and 32a, 32b provided in the fixed frame 30 (pipe shaft), respectively. The mounting member 20 is screwed to the pipe shaft (fixed frame 30) by fixing the screw holes 31a, 31b, 32a, 32b and the screw holes 21a, 21b, 22a, 22b with screws, respectively. Ru. Furthermore, the water heater 10 is screwed to the mounting member 20 at multiple locations, and the mounting member 21 is screwed to the mounting member 20 at multiple locations. Thereby, the water heater 10 is attached to the pipe shaft via the attachment member 20.

When replacing the mounting members 20 and 21 when updating the water heater 10, it is necessary to fix the new mounting member 20 with screws using the screw holes 31a, 31b and 32a, 32b. That is, it is understood that the selection of a new mounting member 20 requires dimensional information regarding the fixed frame 30, including the positional relationship between the screw holes 31a, 31b and 32a, 32b.

FIG. 2 shows a structure for attaching a water heater to a pipe shaft that is installed inside a door. FIG. 2(a) is a front view of the pipe shaft with the door closed, and FIG. 2(b) is a front view of the pipe shaft with the door opened. Furthermore, FIG. 2(c) is a conceptual perspective view for explaining the relationship between the pipe shaft, the mounting member, and the water heater.

Referring to FIG. 2(a), when the door 31 is closed, the exhaust pipe 11 of the water heater 10 projects outward from the opening 32 provided in the door 31. On the other hand, the main body of the water heater 10 is stored inside the door 31. When the door 31 is open as shown in FIG. 2(b), the main body of the water heater 10 attached to the pipe shaft via the attachment member 20 is visible from the outside.

Referring to FIG. 2(c), the mounting member 20 serving as the case inside the door has screw holes 23 corresponding to the screw holes 33, 34a, 34b and 35a, 35b provided in the fixed frame 30, respectively. , 24a, 24b, and 25a, 25b are provided. By fixing the screw holes 33, 34a, 34b, 35a, 35b and the screw holes 23, 24a, 24b, 25a, 25b with screws, the mounting member 20 can be attached to the pipe shaft (fixed frame 30). screwed down. Furthermore, the water heater 10 is screwed to the mounting member 20 at a plurality of locations, so that the water heater 10 is attached to the pipe shaft via the mounting member 20.

When replacing the mounting member 20 when updating the water heater 10, it is necessary to fix the new mounting member with screws using the screw holes 33, 34a, 34b, and 35a, 35b. It is understood that dimensional information regarding the fixed frame 30, including the positional relationship of the screw holes 33, 34a, 34b, and 35a, 35b, is required to select a new mounting member.

FIG. 3 is a front view for explaining dimensional information regarding a standard type pipe shaft mounting member. FIG. 3 shows a front view of the mounting member 20 shown in FIG. 1(b).

Referring to FIG. 3, the positional relationship between the screw holes 21a, 21b, 22a, and 22b of the mounting member 20 is as follows. , 31b, 32a, and 32b.

Regarding the fixed frame 30 of a standard type pipe shaft, a dimension LA indicating the width of the fixed frame 30 can be measured from the outer frame width of the mounting member 20. Further, from the distance between the screw holes 21a, 21b and 22a, 22b of the mounting member 20, to the fixed frame 30 (pipe shaft), which corresponds to the distance between the screw holes 31a, 31b and 32a, 32b of the fixed frame 30. A dimension LB indicating the mounting pitch of the mounting member 20 in the height direction can be measured. Also, the mounting member 20 is installed in the width direction with respect to the fixed frame 30 (pipe shaft), which corresponds to the distance between the screw holes 32a and 32b of the fixed frame 30 from the distance between the screw holes 22a and 22b of the mounting member 20. A dimension LC indicating the pitch can be measured. In this way, dimensions LA to LC regarding the fixed frame 30 of a standard type pipe shaft can be measured from the appearance of the mounting member 20 attached to the pipe shaft. The dimensions LA to LC are necessary as dimensional information for selecting the mounting member 20 that can be attached to the fixed frame 30 of a standard type pipe shaft.

FIG. 4 shows a front view of a photographic image for obtaining dimension information of a standard type pipe shaft in the water heater mounting member selection method according to the present embodiment.

FIG. 4 is a front view similar to FIG. 1(a), but a photographic image for acquiring dimension information is taken so that the measurement marker 50 is included in the photographic image. A reference figure 51 of known dimensions is drawn on the measurement marker 50. For example, the reference figure can be an equilateral triangle with one side of 4 (cm).

Referring to FIG. 4, in the image shown in FIG. 4, a front view of the mounting member 20 attached to the fixed frame 30, specifically, the outer frame shape of the mounting member 20 and the screw holes are shown. From the positions of 21a, 21b, 22a, and 22b, the dimensions LA to LC regarding the fixed frame 30 described in FIG. 3 can be measured.

FIG. 5 is a front view for explaining the dimensional information regarding the pipe shaft of the type installed in the door. FIG. 5 shows a front view of the mounting member 20 shown in FIG. 2(c).

Referring to FIG. 5, the positional relationship between the screw holes 23, 24a, 24b, 25a, and 25b of the mounting member 20 is determined by the positional relationship between the screw holes 23, 24a, 24b, 25a, and 25b provided in the fixed frame 30 of the pipe shaft of the door installation type, which are screwed to each. This is the same as the positional relationship between the screw holes 33, 34a, 34b, 35a, and 35b.

Regarding the fixed frame 30 of the pipe shaft installed inside the door, from the outer frame shape of the mounting member 20, the dimension L1 indicating the height of the installation space inside the door and the width of the fixed frame 30, that is, the installation space inside the door. A dimension L2 indicating the width can be measured. Furthermore, from the distance between the screw holes 24a, 24b and 25a, 25b of the mounting member 20, the distance between the screw holes 34a, 34b and 35a, 35b of the fixed frame 30 corresponds to the distance between the fixed frame 30 (pipe shaft). A dimension L3 indicating the mounting pitch of the member 20 in the height direction can be measured. Also, the mounting member 20 is mounted in the width direction with respect to the fixed frame 30 (pipe shaft), which corresponds to the distance between the screw holes 34a and 34b of the fixed frame 30 from the distance between the threaded holes 24a and 24b of the mounting member 20. A dimension L4 indicating the pitch can be determined.

FIG. 6 shows a front view of a photographic image for obtaining dimensional information of a pipe shaft installed in a door in the water heater mounting member selection method according to the present embodiment. In FIG. 6, the front view in FIG. 2(b) is photographed, and the photographic image for acquiring dimensional information is photographed so as to include the measurement marker 50 similar to that in FIG. .

Referring to FIG. 6, in the image shown in FIG. 6, a front view of the mounting member 20 attached to the fixed frame 30, specifically, the outer frame shape of the mounting member 20 and the screw hole are shown. From the positions of 24a, 24b, 25a, and 25b, dimensions L1 to L4 regarding the fixed frame 30, which were explained with reference to FIG. 5, can be measured.

Furthermore, a dimension L5 indicating the position of the exhaust pipe 11 with respect to the fixed frame 30 can be determined from the distance between the screw hole 23 of the mounting member 20 and the center of the exhaust pipe 11 of the water heater 10.

In this way, the dimensions L1 to L5 of the fixed frame 30 of the pipe shaft installed in the door can be measured from the appearance of the mounting member 20 attached to the pipe shaft. The dimensions L1 to L5 are necessary as dimensional information for selecting the mounting member 20 that can be attached to the fixed frame 30 of the pipe shaft installed inside the door.

As shown in FIGS. 4 and 6, the measurement marker 50 is photographed in the same image as the front view of the attachment member 20 attached to the pipe shaft. Thereby, the measurement accuracy of dimensions LA to LC (FIG. 4) and dimensions L1 to L5 (FIG. 6) can be improved by comparison with known dimensions of the reference figure 51.

The measurement marker 50 has a magnetic surface, for example, and is configured in a sheet shape that can be attached to iron products. That is, the reference figure 51 is drawn on the front surface (first surface) of the sheet shape, and at least the fixed frame 30, the mounting member 20, and the water heater 10 are drawn on at least the back surface (second surface) by magnetic force. The measurement marker 50 can be configured so that it can be attached to either.

As will be described later, in order to improve the measurement accuracy of the dimensions LA to LC, it is necessary to place the measurement marker 50 on a surface that is the same distance from the fixed frame 30 with respect to the photographing device (camera 103 of the terminal device 100). It is preferable to take a photographic image while the device is placed inside the device.

In the following, we will explain how to attach the water heater 10 after replacement (to be replaced) to the pipe shaft using a captured image of the mounting member 20 attached to the pipe shaft and the water heater 10 (before replacement). A method for selecting a water heater mounting member that extracts candidates for the mounting member 20 will be described. That is, the water heater 10 before replacement corresponds to a "first water heater," and the water heater 10 after replacement corresponds to a "second water heater."

In this embodiment, the mounting member 20 is selected through communication with the server 200 using an image taken by the terminal device 100 by executing an application program installed on the terminal device 100 such as a smartphone or a tablet. Explain.

FIG. 7 is a conceptual diagram illustrating the configuration of a communication system for executing the water heater mounting member selection method according to the present embodiment.

Referring to FIG. 7, a terminal device 100 such as a smartphone or a tablet can be communicatively connected to an external communication network 140 via an interface device 160 or a base station 170. The interface device 160 has a function of communicatively connecting devices existing within a certain range, including the terminal device 100, to the external communication network 140. For example, the interface device 160 can be configured by a so-called wireless LAN (Local Area Network) router. Further, since the external communication network 140 is typically the Internet, the external communication network 140 will also be simply referred to as the Internet 140 below.

The server 200 is connected to the Internet 140 and has management functions related to the water heater 10. The terminal device 100 is communicatively connected to a server 200 that is connected to an external communication network 140 via an interface device 160 or a base station 170. This allows the terminal device 100 to exchange information with the server 200 in both directions.

As a result, the terminal device 100 can download the application program related to the water heater 10 from the server 200 and install the program. Furthermore, data can be sent and received to and from the server 200 when the installed program is executed.

FIG. 8 is a schematic block diagram illustrating a configuration example of the terminal device 100 shown in FIG. 7. As shown in FIG. Below, a configuration example in which the terminal device 100 is a smartphone will be described.

Referring to FIG. 8, a terminal device (smartphone) 100 includes a CPU (Central Processing Unit) 101, a touch screen 102, a camera 103 for photographing a subject, a memory 104, buttons for power on/off, etc. section) 105, a communication interface 106 having a communication function via an interface device 160 or a base station 170, a speaker 107 for audio output, a microphone 108 for audio input, and a sensor section 112. CPU 110 corresponds to one embodiment of a "processor".

The sensor unit 112 includes, for example, an acceleration sensor 113 for detecting acceleration applied to the terminal device (smartphone) 100, a geomagnetic sensor 114 for detecting the rotation angle of the terminal device (smartphone) 100, and the like.

The touch screen 102 is configured as a display-integrated input device including a display 110 and a touch panel 111. Furthermore, the touch screen 102 has a viewfinder function that displays images taken by the camera 103 during shooting.

The memory 104 is realized by various types of RAM (Random Access Memory), ROM (Read Only Memory), flash memory, hard disk, and the like. The memory 104 stores various programs executed by the CPU 101 and various data read by the CPU 101. The CPU 101 executes various information processing and the like by executing various programs stored in the memory 104.

FIG. 9 is a schematic block diagram illustrating a configuration example of the server 200 shown in FIG. 7. As shown in FIG. Referring to FIG. 9, server 200 includes a CPU 210 for controlling the entire device, and a communication unit 220 and memory 230 connected to CPU 210. The communication unit 220 has a communication function for communicating via the external communication network 140. CPU 210 corresponds to one embodiment of a "processor".

The memory 230 includes, for example, a ROM 231 which is a memory for storing programs executed by the CPU 210, a RAM 232 which is a memory which serves as a work area when executing a program by the CPU 210, and stores calculated values. It can also be configured to include an HDD (Hard Disk Drive) 233 as an example of a large storage device.

The server 200 can be configured to have functions equivalent to a general computer. The server 200 may further include an operation unit and a display for receiving operation input from an operator.

Regarding the water heater mounting member selection method according to the present embodiment, using the hardware configuration examples illustrated in FIGS. 7 to 9, in the terminal device 100, the CPU 101 executes an application program stored in the memory 104. This can be achieved by The application program is, for example, downloaded from the server 200 and stored in the memory 104 in advance.

FIG. 10 is a flowchart illustrating a procedure for selecting a mounting member for a water heater according to the present embodiment. As shown in FIG. 10, by starting the application program on the terminal device 100, the processes of the terminal device 100 and the server 200 are linked to execute the water heater mounting member selection method. For example, the processing of each step on the terminal device 100 side is executed by the CPU 101, and the processing of each step on the server 200 side is executed by the CPU 210. 11 to 13 show examples of screen displays on the terminal device 100 when the above application program is executed.

Referring to FIG. 10, when an application program for executing the water heater mounting member selection method according to the present embodiment is started, terminal device 100 performs step (hereinafter also simply referred to as "S") The processing from 110 onwards is started.

Referring to FIGS. 10 and 11, for example, when the screen 301 shown in FIG. 11(a) is displayed on the touch screen 102, if you operate to select the "PS member measurement application", The terminal device 100 starts the application program and outputs an installation mode selection screen in S110.

In S110, a message 302a is displayed on the screen 302 shown in FIG. 11(b). In response to the message 302a, the user specifies which of the "standard type pipe shaft (PS standard installation)" and "inside door installation type pipe shaft (PS door installation)" explained in FIG. It is possible to select and input whether to select a mounting member (PS member).

In FIG. 11(b), when a touch input is performed on message 302b after selection input on message 302a, the terminal device 100 selects "standard type pipe shaft" and "indoor installation type pipe shaft" in S120. Read selection input. Further, in S130, the terminal device 100 starts a dimension measurement process corresponding to the mode according to the selection result in S120.

Below, a processing example when "standard type pipe shaft (PS standard installation)" is selected in S120 will be described in detail. As mentioned above, for a standard type pipe shaft, it is necessary to measure the dimensions LA to LC explained in FIGS. 3 and 4.

In S135, the terminal device 100 executes guidance for photographing a front view of the pipe shaft (corresponding to FIG. 1(a)). As a result, a screen 303 shown in FIG. 11(c) is displayed on the touch screen 102. The guidance may include guidance for improving the measurement accuracy of dimensions, as shown on the screen 303. Note that the screen 303 may further display a message reminding the user to take an image including the measurement marker 50 shown in FIGS. 4 and 6.

When the front view of the pipe shaft is photographed according to the guidance in S135, the terminal device 100 acquires a photographic image of the front view in S140 in response to the "load image" button being operated on the screen 303. do. Incidentally, image capturing with the terminal device 100 may be performed by exiting from the series of "PS member measurement applications" and performing camera capturing with another browser. In this way, by displaying guide lines on the camera screen or displaying full-sized markers overlapping each other, it becomes possible to capture a more accurate front view. In this case, after photographing with a camera using another browser, the process returns to the "PS member measurement application" and acquires a photographic image in S140.

Upon acquiring the photographic image (S140), the terminal device 100 outputs cursor operation guidance for specifying a measurement site on the photographic image to the user in S150. For example, in S150, in addition to a photographic image of the pipe shaft, a cursor as illustrated in FIGS. 12(a) to 12(c) and guidance for operating the cursor are displayed on the touch screen 102.

FIG. 12(a) shows a screen 311 for measuring the dimension LA. On the screen 311, cursors 311a and 311b for measuring the dimension LA indicating the width of the fixed frame 30 and messages related to the operation of the cursors 311a and 311b are output.

The cursors 311a and 311b can be moved in the left and right directions on the screen by the user's touch and slide operations. Furthermore, a guidance message for moving the cursors 311a and 311b to positions corresponding to both ends of the dimension LA shown in FIGS. 3 and 4 is output on the screen 311. When the "OK" button is touched on the screen 311, the positions of the cursors 311a and 311b at that time are stored.

When the "OK" button is operated on the screen 311 in FIG. 12(a), a screen 312 for measuring the dimension LB shown in FIG. 12(b) is then displayed on the touch screen 102. Referring to FIG. 12(b), cursors 312a and 312b for measuring the dimension LB indicating the mounting pitch in the height direction and messages related to the operation of the cursors 312a and 312b are output on the screen 312. .

The cursors 312a and 312b can be moved up and down on the screen by touch and slide operations by the user. Furthermore, a guidance message for moving the cursors 312a, 312b to positions corresponding to both ends of the dimension LB shown in FIGS. 3 and 4 is output on the screen 312. When the "OK" button is touched on the screen 312, the positions of the cursors 312a and 312b at that time are stored.

When the "OK" button is operated on the screen 312 in FIG. 12(b), a screen 313 for measuring the dimension LC shown in FIG. 12(c) is then displayed on the touch screen 102. Referring to FIG. 12C, cursors 313a and 313b for measuring the dimension LC indicating the mounting pitch in the width direction and messages related to the operation of the cursors 313a and 313b are output on the screen 313.

The cursors 313a and 313b can be moved in the left and right directions on the screen by the user's touch and slide operations. Furthermore, a guidance message for moving the cursors 313a, 313b to positions corresponding to both ends of the dimension LC shown in FIGS. 3 and 4 is output on the screen 313. When the "OK" button is touched on the screen 313, the positions of the cursors 313a and 313b at that time are stored.

When the "OK" button is operated on the screen 313 of FIG. 12(c), the specification of the cursor position for measuring the dimensions LA to LC is completed. At this stage, a user confirmation screen shown in screen 314 shown in FIG. 12(d) can be displayed on the touch screen 102. On the screen 314, the currently stored positions of the cursors 311a, 311b, 312a, 312b, 313a, and 313b are displayed superimposed on the photographic image of the pipe shaft. When the "back" button is operated on the screen 314, the cursor position can be corrected by returning to any of the screens 311 to 313.

When the "OK" button is operated on the screen 314, the terminal device 100 acquires a composite image in which the cursor position after the user's operation is added to the photographic image in S160. Furthermore, the image data of the composite image is transmitted to the server 200.

When the server 200 receives the data of the composite image from the terminal device 100 in S200, the server 200 measures the dimensions of the part specified by the cursor on the received composite image in S210, thereby measuring the dimensions of the pipe shaft (fixed frame 30). Calculate the measured values of dimensions LA to L3. Specifically, the distance between cursors 311a and 311b, the distance between cursors 312a and 312b, and the distance between cursors 313a and 312b are determined based on the cursor position specified on the composite image and the reference figure 51 within the same image. By comparing each of the distances between 313b and the dimensions of the reference figure 51, the measured values of the dimensions LA to LC can be calculated. For example, the dimensions LA to LC can be calculated from the composite image sent from the terminal device 100 using a survey calculation process similar to that of a dimension measurement application (application program) from a photographic image commonly used on smartphones, etc. can.

Incidentally, in S210, if the measured values of the dimensions LA to LC are not within a predetermined range, a reasonableness check can also be executed to output a "measurement error". Furthermore, even when the reference figure 51 is unclear in the received image, it can be treated as a "measurement error".

In S220, the server 200 transmits the calculation result in S210 to the terminal device 100. Thereby, the terminal device 100 can receive the dimension calculation results (presence or absence of measurement errors and measured values of dimensions LA to LC) for the composite image transmitted in S160.

In S165, the terminal device 100 receives the calculation result from the server 200, and displays part or all of the calculation result on the touch screen 102 as necessary. If the measured values of dimensions LA to LC cannot be automatically obtained in S210 due to a measurement error, an input screen for manually measuring the actual measured values of dimensions LA to LC may be started in conjunction with S165. It is possible. By inputting actual measured values in accordance with the input screen, even if an error occurs in the dimension calculation results for the composite image, the measured values of the dimensions LA to LC are acquired and the process proceeds to S170 and thereafter. becomes possible.

Subsequently, in S170, the terminal device 100 receives an input of the user's selection of the model type of the water heater 10 (product) after replacement. Further, in S175, the terminal device 100 receives an input for selecting the size type of the water heater 10 (product) after replacement.

In S170, a screen 321 shown in FIG. 13(a) is output to the touch screen 102. Further, in S175, a screen 322 shown in FIG. 13(b) is output to the touch screen 102.

As shown in FIG. 13A, on the screen 321, a simple model type that is roughly assigned according to the function of the water heater 10 is selectively input. The model types are A type (water heater with hot water heating function and bath reheating function) / B type (water heater with bath reheating function) / C type (water heater with bath hot water filling function) / D type (hot water heating function) and type E (single function water heater), etc. Similarly, in FIG. 13(b), the size type of the water heater 10, which is classified in advance into multiple types (for example, standard size/compact/slim), is selectively input. In this way, in S170 and S175, the general classification of the water heater 10 after replacement (scheduled for replacement) is performed without inputting detailed numerical information regarding the model and size of the water heater 10 after replacement. Attribute information is input.

Referring again to FIG. 10, in S180, the terminal device 100 transmits the attribute information related to the replaced water heater 19 (product) inputted on the screen 321 (S170) and the screen 322 (S175) to the server 200. Send to.

When the server 200 receives the attribute information of the replaced water heater 10 from the terminal device 100 in S230, in S240, the server 200 obtains the pipe shaft dimension measurement value ( LA to LC) and the attribute information (model and size type) of the water heater after replacement. For example, the server 200 has a database of attachment members constructed in advance, as illustrated in FIG. 14 . The data group constituting the database is stored in the ROM 231 while being updated by the server 200.

Referring to FIG. 14, the mounting member database includes attributes (model type and size type) of the corresponding water heater 10 and tolerances for each of the dimensions LA to LC for each of the plurality of types of mounting members 20. A range LAmax, LAmin to LCmax, LCmin is stored.

In S240 of FIG. 10, the mounting member 20 that matches the model type and size type of the water heater 10 after replacement received in S230 is extracted as the attribute condition (i) of the water heater 10 after replacement. Furthermore, (ii) as a dimension condition, the mounting member 20 satisfies all of LAmin≦LA≦LAmax, LBmin≦LB≦LBmax, and LCmin≦LC≦LCmax for the dimensions LA to LC calculated in S210. Extracted. Finally, a mounting member 20 satisfying both the (i) attribute condition and (ii) dimension condition is extracted from the plurality of types of mounting members 20 registered in advance in the database.

Referring again to FIG. 10, in S250, the server 200 selects a mounting member for attaching the replaced water heater 10 to the photographed pipe shaft based on the presence or absence of the mounting member 20 extracted by the selection process in S240. 20 is applicable or not.

If a mounting member satisfying both the (i) attribute condition and (ii) dimension condition is not extracted in S240, the server 200 makes a NO determination in S250. In this case, "no target member" is determined as the selection result in S270. On the other hand, if a mounting member satisfying both the (i) attribute condition and (ii) dimension condition is extracted in S240, the server 200 makes a YES determination in S250, and in S260, the server 200 selects the extracted mounting member 20. The data specifying the (target member) is determined as the selection result. Further, in S280, the server 200 transmits the selection result determined in S260 or S270 to the terminal device 100.

When the terminal device 100 receives the selection result transmitted from the server 200 in S190, it outputs a message indicating the selection result to the user. When the terminal device 100 receives the selection result in S260, for example, a screen 323a shown in FIG. 13(c) is displayed on the touch screen 102. The screen 323a includes a display that notifies information (model number, etc.) for specifying the mounting member 20 that satisfies both (i) the attribute condition and (ii) the dimension condition.

On the other hand, when the terminal device 100 receives the selection result in S270, the screen 323b shown in FIG. 13(d) is displayed on the touch screen 102, for example. The screen 323b includes a display notifying that there is no attachment member 20 matching (i) attribute conditions and (ii) dimensional conditions in the database (FIG. 14).

As described above, according to the water heater mounting member selection method according to the present embodiment, the operator can perform actual measurements using photographed images of the water heater 10 before replacement and the pipe shaft to which the mounting member 20 is attached. A dimension measurement value can be calculated from the photographed image without any need, and an appropriate mounting member can be automatically extracted from a database constructed in advance. Thereby, it is possible to facilitate the selection of a mounting member suitable for the replaced water heater and the pipe shaft.

Although not shown in FIG. 14, for each of the plurality of registered mounting members 20, the dimensions L1 to L5 of the pipe shaft of the type installed inside the door are also listed in the database as permissible ranges L1max, L1min to L1min. L5max and L5min are stored.

Then, on the screen 302 (FIG. 11(b)), "Pipe shaft of the door installation type (PS door installation)" is selected and input, and in S120 of FIG. 10, "Pipe shaft of the door installation type" is selected. If the selection has been read, the content of the cursor operation guidance in S150 is different from the example in FIG. 12. Specifically, a guidance message is output to direct the cursor to specify a portion corresponding to the dimensions L1 to L5 described in FIG. 6.

FIG. 15 shows, as an example, a screen 315 when "pipe shaft for installation inside door" is selected. Screen 315 is a user confirmation screen that is displayed when an in-door installation type pipe shaft is selected, in place of screen 314 (FIG. 12(d)) when a standard type pipe shaft is selected.

Referring to FIG. 15, when the pipe shaft of the door installation type is selected, cursors 321a to 325a, 321b to 325b are displayed on the photographic image of the pipe shaft taken according to the guidance in S140. They are displayed in the same way as the cursors 311a to 313a and 311b to 313b described above. That is, each cursor can be moved up and down or left and right on the screen by the user's touch and slide operations, and at the stage of FIG. 15, the position has been determined by the user's operation.

The cursors 321a and 321b specify positions corresponding to both ends of the dimension L1, which indicates the height of the arrangement space inside the door, shown in FIGS. 5 and 6. The cursors 322a and 322b specify positions corresponding to both ends of the dimension L2 indicating the width of the fixed frame 30 shown in FIGS. 5 and 6.

The cursors 323a and 323b specify positions corresponding to both ends of the dimension L3 indicating the mounting pitch in the height direction shown in FIGS. 5 and 6. The cursors 324a and 324b specify positions corresponding to both ends of the dimension L4 indicating the mounting pitch in the width direction shown in FIGS. 5 and 6. Further, the cursors 325a and 325b specify positions corresponding to both ends of a dimension L5 indicating the position of the exhaust pipe 11 with respect to the fixed frame 30 shown in FIG.

For each of these cursors, a guidance message for specifying the part corresponding to the dimensions L1 to L5 is displayed, similar to that for the cursors 311a to 313a and 311b to 313b in FIGS. 12(a) to 12(c). The position is determined by the user's operation on the displayed screen.

When the "Confirm" button is touched on the screen 315 shown in FIG. 15, the terminal device 100, in step S160, synthesizes the pipe shaft of the door installation type, including the position information of the cursors 321a to 325a and 321b to 325b. Image can be obtained. By transmitting the composite image to the server 200, the server 200 can use the composite image to calculate the measured values of the dimensions L1 to L5 of the pipe shaft of the type installed in the door. In the following, by using the measured values of dimensions L1 to L5 shown in FIG. 6 instead of the measured values of dimensions LA to LC for the standard type pipe shaft, the installation will be performed in the same way as for the standard type pipe shaft. Selection of the member 20 can be carried out.

As described above, in this embodiment, when the pipe shaft is photographed, the measurement marker 50 on which the known reference figure 51 is drawn is included in the image.

FIG. 16 shows a conceptual front view illustrating the position where measurement markers are attached when photographing the pipe shaft.

FIG. 16A shows a state in which a measurement marker 50 having a magnetic surface is attached to a mounting member 20 at approximately the same height as a fixed frame 30 of a pipe shaft installed in a door. According to the photographic image of the pipe shaft taken in the state shown in FIG. 16(a), the measurement surface with dimensions L1 to L5 (or LA to LC) and the surface to which the measurement marker 50 (reference figure 51) is attached are , is at the same distance as the fixed frame 30 with respect to the image capturing device (camera). Therefore, as described above, it is possible to improve the accuracy of measuring the dimensions L1 to L5 (or LA to LC) from the image using the known dimensions of the reference figure 51.

Therefore, in the photography guidance in S135 (FIG. 10), a message is output to the user prompting the user to attach the measurement marker 50 on the same plane as the fixed frame 30 (within the same plane at the same distance from the camera 103). It is preferable to do so.

On the other hand, FIG. 16(b) shows an example in which the measurement marker 50 is attached to the surface of the water heater 10 instead of the fixed frame 30 in a front view of the water heater 10 attached to a standard type pipe shaft. It will be done. When measuring the dimensions LA to LC (or L1 to L5) from the photographic image of the pipe shaft taken in the state shown in FIG. A distance difference (height difference) with respect to the image capturing device (camera) occurs between the measurement planes LA to LC or L1 to L5. There is a concern that this distance difference may cause a measurement error in the calculated values of dimensions LA to LC (or L1 to L5).

Therefore, when transmitting the image data in S160 (FIG. 10), the attachment surface of the measurement marker 50 (reference figure 51) and the measurement surface of the dimensions LA to LC or L1 to L5 (that is, the surface of the fixed frame 30) are Preferably, the height difference ΔL is input by the user. As a result, when the image is taken in the state shown in FIG. 16(a), ΔL=0 is input, while when the image is taken in the state shown in FIG. 16(b), the actual value of ΔL is input. It is possible to input (ΔL>0 or ΔL<0) and send it to the server 200. For example, the server 200 can suppress the above-mentioned measurement error by performing a correction calculation using the height difference ΔL input by the user in the survey calculation processing in S210.

Alternatively, if the measurement marker 50 is to be attached to the water heater 10 instead of the fixed frame 30, and the "standard type (PS standard installation)" is selected in S110 of FIG. , it is possible to perform the above-described correction calculation by fixedly using a preset height difference ΔL (for example, 4 [cm]) without requiring the user to input the height difference ΔL. This is because the height difference between the fixed frame 30 and the outer surface of the water heater 10 is limited to a known value in the PS standard installation.

Further, in this embodiment, an example has been described in which the method for selecting a water heater mounting member according to this embodiment is executed by cooperative operation of the terminal device 100 and the server 200, but the process shown in FIG. Division of labor is just one example. For example, the survey calculation process for calculating the measured value of dimensions in S210 of the server 200 can be executed on the terminal device 100 side. In this case, there is a flow in which the terminal device 100 sends the attribute information (model type and size type) of the replaced water heater (second water heater) to the server 200 as well as the measured value data of the dimensions. can do.

Further, the mounting member selection processing in S240 to S270 of the server 200 can also be executed on the terminal device 100 side by transmitting data equivalent to the database in FIG. 14 from the server 200 to the terminal device 100.

In this way, it is possible to execute one or both of the processing in S210 and the processing in S240 to S270 on the terminal device 100, but by sharing the processing as explained in FIG. It is possible to avoid excessive processing load and storage capacity on the terminal device 100 without increasing the amount of communication between the devices.

Furthermore, the mode of the pipe shaft is not limited to the standard installation type and the door installation type as illustrated, but can be similarly installed by defining the dimensional information necessary for selecting the mounting member 20 in advance. It is possible to easily select members.

The embodiments disclosed this time should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims rather than the above description, and it is intended that all changes within the meaning and range equivalent to the claims are included.

10 water heater, 11 exhaust pipe, 20, 21 mounting member, 21a, 21b, 22a, 22b, 23, 24a, 24b, 25a, 25b screw hole (mounting member), 31a, 31b, 32a, 32b, 33, 34a, 34b, 35a, 35b screw hole (fixed frame), 30 fixed frame, 31 door, 32 opening, 50 measurement marker, 51 reference figure, 100 terminal equipment, 101, 210 CPU, 102 touch screen, 103 camera, 104, 230 memory, 106 communication interface, 107 speaker, 108 microphone, 110 display, 111 touch panel, 112 sensor unit, 140 external communication network (Internet), 160 interface device, 170 base station, 200 server, 220 communication unit, 231 ROM, 232 RAM, 301-303, 311-315, 321, 322, 323a, 323b Screen, 302a, 302b Message, 311a-313a, 311b-313b, 321a-325a, 321b-325b Cursor, L1-L5, LA-LC Dimensions.

Claims (11)

A method for selecting a mounting member for mounting a water heater on a pipe shaft, the method comprising:
A photographic image of a front view of the pipe shaft in a state where the first water heater before replacement and the mounting member are attached to the pipe shaft, and a reference figure having known dimensions is included in the same image. Steps to obtain
guiding a movement operation of a plurality of cursors on the photographic image for specifying both ends of a dimension of at least one part predetermined as a measurement target of the pipe shaft;
obtaining a composite image of the front view including the photographic image and the positions of the plurality of cursors determined by the moving operation;
calculating each measurement value of the dimension of the at least one part by a survey calculation based on a comparison between the distance between the plurality of cursors on the composite image and the dimension of the reference figure;
receiving input of attribute information of the second water heater after replacement;
By referring to a database in which the attribute information and each tolerance range of each of the dimensions for each of the plurality of types of the mounting members are stored in advance using the calculated measurement value and the input attribute information, A method for selecting a mounting member for a water heater, comprising the step of selecting the mounting member suitable for the pipe shaft in the photographic image and the second water heater from a plurality of types of mounting members. 2. The method for selecting a mounting member for a water heater according to claim 1, further comprising the step of guiding the user to include the reference figure in the photographic image prior to the step of acquiring the photographic image. In the step of guiding the photographing including the reference figure, the photographic image capturing device is further guided to arrange the reference figure in a plane having the same distance as the pipe shaft. A method for selecting a mounting member for a water heater according to item 2. further comprising the step of receiving input of selection information regarding the aspect of the pipe shaft,
The selection information includes information specifying whether the pipe shaft is a standard installation type or an in-door installation type,
In the step of guiding the user to take a photograph including the reference figure, the step of guiding the user to place the reference figure on the surface of the water heater, and inputting the standard installation type as the selection information; In the step of calculating, the surveying involves a correction calculation for the existence of a preset height difference between the pipe shaft and the surface of the water heater with respect to the photographic image capturing device. The method for selecting a mounting member for a water heater according to claim 2, wherein the measured value is calculated by calculation. further comprising the step of receiving input of selection information regarding the aspect of the pipe shaft,
The part of the pipe shaft to be measured is separately predetermined for each aspect,
3. In accordance with the inputted selection information, different contents regarding the movement operations of the plurality of cursors are guided, and in the step of calculating, measured values of dimensions of different parts are calculated. A method for selecting a mounting member for a water heater according to any one of the above. The selection information includes information specifying whether the pipe shaft is a standard installation type or an in-door installation type,
When the pipe shaft is of the standard installation type, a dimension indicating the width of the pipe shaft and a dimension indicating the mounting pitch in the height direction and width direction of the mounting member with respect to the pipe shaft are measured,
When the pipe shaft is of the door installation type, the dimensions of the space inside the door in the height and width directions, and the dimensions indicating the mounting pitch of the mounting member in the height and width directions with respect to the pipe shaft. 6. The method for selecting a mounting member for a water heater according to claim 5, wherein a dimension indicating a distance between a fixed position of the mounting member and the upper part of the pipe shaft and a center of an exhaust pipe of the water heater is measured. The water heater according to any one of claims 1 to 6, wherein the attribute information specifies a model type defined in advance corresponding to a function of the water heater and a size type classified into a plurality of types. How to select mounting materials. The selection method is executed by the terminal device having the photographic image capturing function and the server holding the database,
The steps of acquiring the photographic image, guiding the movement operation, acquiring the composite image, and receiving input of the attribute information are executed in the terminal device,
The calculating step and the selecting step are performed in the server,
transmitting the composite image from the terminal device to the server;
transmitting the attribute information from the terminal device to the server;
transmitting the selection result from the selecting step from the server to the terminal device;
2. The method for selecting a water heater mounting member according to claim 1, further comprising the step of notifying information related to the selection result received from the server in the terminal device. A program for causing a computer equipped with a processor to execute the method for selecting a mounting member for a water heater according to any one of claims 1 to 8. A measurement marker having a sheet shape on which the reference figure used in the method for selecting a mounting member for a water heater according to any one of claims 1 to 8 is drawn. It has a first surface on which the reference figure is drawn, and a second surface opposite to the first surface,
The measurement marker according to claim 10, wherein the second surface is configured to be attached to at least one of the water heater, the mounting member, and the pipe shaft by magnetic force.

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