Construction site assistance system, information providing method, terminal device, and control method

Abstract

Provided is an information providing method in a construction site assistance system (50) which is connected to a terminal device (30) over a network and includes a database that stores types of illumination fixtures (20) in association with a plurality of first categories based on shape information used in a catalog of the illumination fixtures (20). The information providing method involves: acquiring a captured image of one existing illumination fixture installed in one construction space; using a trained model, which has been trained on the relationship between captured images of a plurality of illumination fixtures (20) and the shapes of the plurality of illumination fixtures (20), to classify the shape of the one existing illumination fixture (20) into an imaged shape category that is one of a prescribed number of categories; selecting, from among a plurality of first categories on the basis of the database, a type of an illumination fixture (20) belonging to a first category corresponding to the shape of the one existing illumination fixture (20) classified into the imaged shape category; and displaying, on the terminal device (30), the illumination fixture (20) of the selected type as an exchange candidate for the existing illumination fixture (20).

Description

Construction site support system, information provision method, terminal device and control method

[0001] The present disclosure relates to a construction site support system, an information providing method, a terminal device, and a control method.

[0002] A technology has been disclosed in which a category to which a product belongs is determined, features are selected based on the obtained category information, and a similarity search is performed (see Patent Document 1).

[0003] Japanese Patent Application Laid-Open No. 2004-171051

[0004] The present disclosure aims to provide a construction site support system, information provision method, and control method that significantly reduces the time required to search for the type of new lighting fixture, prevents errors in writing through digitalization, and overall makes it more efficient to create proposals for recommended new lighting fixtures.

[0005] An information providing method according to one aspect of the present disclosure is an information providing method in a construction site support system that is connected to a terminal device via a network and has a database that stores lighting fixture types corresponding to a plurality of first classifications based on shape information used in a lighting fixture catalog, the information providing method comprising the steps of: acquiring an image of an existing lighting fixture installed in a construction space; classifying the shape of the existing lighting fixture into an imaged shape classification that is one of a predetermined number of classifications using a trained model that has learned the relationship between the imaged images of a plurality of lighting fixtures and the shapes of the plurality of lighting fixtures; selecting, from the plurality of first classifications based on the database, a type of lighting fixture that belongs to a first classification that corresponds to the shape of the existing lighting fixture classified into the imaged shape classification; and displaying the selected type of lighting fixture on the terminal device as a replacement candidate for the existing lighting fixture.

[0006] These comprehensive or specific aspects may be realized as a system, a method, an integrated circuit, a computer program, or a storage medium such as a computer-readable CD-ROM, or may be realized as any combination of a system, a method, an integrated circuit, a computer program, and a storage medium.

[0007] The construction site support system, information provision method, and control method disclosed herein significantly reduce the time required to search for the type of new lighting fixtures, prevent errors in writing through digitalization, and overall make proposal creation more efficient.

[0008] FIG. 1 is a diagram showing a situation in which a construction site support system according to an embodiment is applied. FIG. 2 is a diagram showing an overview of the construction site support system according to an embodiment. FIG. 3 is a block diagram showing the functional configuration of the construction site support system according to an embodiment. FIG. 4 is a diagram showing an example of image shape classification in the construction site support system according to an embodiment. FIG. 5 is a diagram showing examples of first classification and second classification in the construction site support system according to an embodiment. FIG. 6 is a sequence diagram showing the operation of Operation Example 1 of the construction site support system according to an embodiment. FIG. 7 is a flowchart showing the operation of Operation Example 1 of the construction site support system according to an embodiment. FIG. 8 is a diagram showing an example of a screen (in the case of a Fuji-type direct-mount base light) displayed on the display unit of a terminal device during operation of the construction site support system according to an embodiment. FIG. 9 is a diagram showing another example of a screen (in the case of a Fuji-type direct-mount base light) displayed on the display unit of a terminal device during operation of the construction site support system according to an embodiment. FIG. 10 is a diagram showing an example of a screen (in the case of a square-type bracket) displayed on the display unit of a terminal device during operation of the construction site support system according to an embodiment. FIG. 11 is a diagram showing another example of a screen (in the case of a square-type bracket) displayed on the display unit of a terminal device during operation of the construction site support system according to an embodiment. FIG. 12 is a block diagram showing a functional configuration of Variant 1 of the construction site support system according to the embodiment. FIG. 13 is a sequence diagram showing the operation of Variant 1 of the construction site support system according to the embodiment. FIG. 14 is a flowchart showing the operation of Variant 1 of the construction site support system according to the embodiment. FIG. 15 is a block diagram showing a functional configuration of Variant 2 of the construction site support system according to the embodiment. FIG. 16 is a sequence diagram showing the operation of Variant 2 of the construction site support system according to the embodiment. FIG. 17 is a flowchart showing the operation of Variant 2 of the construction site support system according to the embodiment. FIG. 18 is a block diagram showing a functional configuration of Variant 3 of the construction site support system according to the embodiment. FIG. 19 is a sequence diagram showing the operation of Variant 3 of the construction site support system according to the embodiment. FIG. 20 is a flowchart showing the operation of Variant 3 of the construction site support system according to the embodiment.

[0009] (Findings that form the basis of the present disclosure) A considerable number of lighting fixtures are installed in one construction space. Conventionally, when renovating the one construction space, it is necessary to replace the considerable number of existing lighting fixtures with new lighting fixtures. In this case, workers would visually check and identify the type of each existing lighting fixture, and record it by hand by taking notes themselves. Therefore, when creating a proposal for the renovation work (i.e., a proposal for new lighting fixtures recommended for replacement), it was easy for errors to occur because the handwritten information had to be transcribed.

[0010] In addition, there were a considerable number of existing lighting fixtures to be replaced, and they were all similar in shape. Furthermore, if the existing lighting fixtures were installed on the ceiling, they were also some distance from the floor. Therefore, checking each one individually was inefficient, lacked accuracy, and was prone to errors.

[0011] Furthermore, when creating the proposal, it was necessary to provide the product number of the new lighting fixture, but the worker had to manually select the product number from a thick paper catalog. As a result, creating the proposal was inefficient and took a long time.

[0012] Furthermore, Patent Document 1, listed in the "Background Art" section, discloses a technology in which a user first narrows down product searches using a standard keyword search or category search, and then when the user presses a similar product search button, a server determines the product ID of the product corresponding to the pressed button. The server then determines the category to which the product corresponding to the product ID belongs by referring to a product information database, and references the product name, price, category ID, etc., selects features based on the obtained category information, performs a similar search that matches the features, and transmits the search result data to a client. However, Patent Document 1 relates to an improvement in technology used by users when searching for products on online shopping (electronic shopping) sites. Therefore, as described above, when renovating a construction space and replacing a considerable number of existing lighting fixtures with new lighting fixtures, identifying the existing lighting fixtures requires the knowledge and experience of highly specialized workers, making it difficult to apply the technology of online shopping (electronic shopping) sites used by general users without specialized knowledge. In other words, even when using standard keyword search or category search, it is difficult to narrow down the search because the existing lighting fixtures themselves are highly similar to each other.

[0013] Here, lighting fixtures mainly have features related to their shape and features related to their functions, such as lighting color and brightness. Functional features may be changed when replacing an existing lighting fixture with a new one. On the other hand, shape features are generally not changed when replacing an existing lighting fixture with a new one. This is because changing the shape of a lighting fixture requires changing the shape of the wiring hole in the ceiling for the lighting fixture installation, which requires extensive construction work. Furthermore, since the wallpaper has been damaged by lighting caused by the existing lighting fixture, a new lighting fixture with a shape similar to that of the existing lighting fixture is suitable for concealing the damage.

[0014] Therefore, we came up with the idea of ​​identifying existing lighting fixtures to replace by focusing on characteristics related to the shape of the lighting fixtures.

[0015] Specifically, a database is prepared in which types of lighting fixtures are stored in correspondence with a plurality of first classifications based on shape information used in a lighting fixture catalog, and a trained model that has learned the relationship between captured images of a plurality of lighting fixtures and the shapes of the plurality of lighting fixtures is used to classify the shape of the one existing lighting fixture into a second classification, which is one of a predetermined number of classifications, and a type of lighting fixture belonging to the first classification that corresponds to the shape of the one existing lighting fixture classified into the second classification is selected from the plurality of classifications based on the database.

[0016] In other words, an information provision method (Technology 1) according to one aspect of the present disclosure is an information provision method in a construction site support system that is connected to a terminal device via a network and has a database that stores lighting fixture types corresponding to a plurality of first classifications based on shape information used in a lighting fixture catalog, the information provision method comprising: acquiring an image of an existing lighting fixture installed in a construction space; classifying the shape of the existing lighting fixture into an imaged shape classification that is one of a predetermined number of classifications using a trained model that has learned the relationship between the imaged images of a plurality of lighting fixtures and the shapes of the plurality of lighting fixtures; selecting, from the plurality of first classifications based on the database, a type of lighting fixture that belongs to a first classification that corresponds to the shape of the existing lighting fixture classified into the imaged shape classification; and displaying lighting fixtures of the selected type on the terminal device as replacement candidates for the existing lighting fixture.

[0017] This information provision method can present the user with the type of corresponding new lighting fixture based on captured images of the existing lighting fixture. Therefore, even if there are a considerable number of existing lighting fixtures to be replaced and the shapes of the existing lighting fixtures are similar, the user can significantly reduce the time it takes to search for the type of new lighting fixture that corresponds to the shape of the existing lighting fixtures, prevent errors in writing by digitizing the information, and overall improve the efficiency of proposal creation.

[0018] Technology 2 is the information providing method of technology 1, in which the first classification includes any one of a direct-mounted base light, a recessed base light, a down light, a spot light, and a universal down light.

[0019] This information providing method can assist the user in identifying the type of lighting fixture if the corresponding newly installed lighting fixture is one of a direct-mount base light, a recessed base light, a downlight, a spotlight, and a universal downlight.

[0020] Technique 3 is the information providing method of technique 1 or 2, wherein the imaged shape classification includes any one of a direct-mounted base light, a recessed base light, a down light, a spot light, and a universal down light.

[0021] This information providing method can assist the user in identifying the type of lighting fixture if the existing lighting fixture is one of a direct-mount base light, recessed base light, downlight, spotlight, and universal downlight.

[0022] Technique 4 is the information providing method according to any one of techniques 1 to 3, wherein the database manages the first classification and the imaging shape classification in association with each other.

[0023] In this information providing method, the first classification and the image capture shape classification are managed in association with each other in a database, so that lighting fixture type candidates can be presented to the user.

[0024] A construction site support system (Technology 5) according to one aspect of the present disclosure is a construction site support system that is connected to a terminal device via a network and includes a database that stores types of lighting fixtures in correspondence with a plurality of first classifications based on shape information used in a lighting fixture catalog, in which a computer in the construction site support system acquires an image of an existing lighting fixture installed in a construction space, classifies the shape of the existing lighting fixture into an imaged shape classification that is one of a predetermined number of classifications using a trained model that has learned the relationship between the imaged images of the plurality of lighting fixtures and the shapes of the plurality of lighting fixtures, selects, from the plurality of first classifications based on the database, a type of lighting fixture that belongs to a first classification that corresponds to the shape of the existing lighting fixture classified into the imaged shape classification, and displays the selected type of lighting fixture on the terminal device as a replacement candidate for the existing lighting fixture.

[0025] This construction site support system can present the user with the type of corresponding new lighting fixture based on captured images of existing lighting fixtures. Therefore, even if there are a considerable number of existing lighting fixtures to be replaced and the shapes of the existing lighting fixtures are similar, the user can significantly reduce the time it takes to search for the type of new lighting fixture that corresponds to the shape of the existing lighting fixtures, prevent errors through digitization, and overall improve the efficiency of proposal creation.

[0026] Technology 6 is a terminal device in the construction site support system of Technology 5 that acquires information about the selected type of lighting fixture from the construction site support system and displays the selected type of lighting fixture on a display as a replacement candidate for the existing lighting fixture.

[0027] Such a terminal device can display the type of the newly installed lighting fixture on the display.

[0028] A control method (Technology 7) according to one aspect of the present disclosure is a control method for a terminal device connected to a construction site support system via a network and including a database storing lighting fixture types corresponding to a plurality of first classifications based on shape information used in a lighting fixture catalog, the control method comprising the steps of: causing a computer of the terminal device to acquire an image of an existing lighting fixture installed in a construction space; transmitting the acquired image to the construction site support system; using a trained model that has learned the relationship between the imaged images of the plurality of lighting fixtures and the shapes of the plurality of lighting fixtures in the construction site support system, classifying the shape of the existing lighting fixture into an imaged shape classification that is one of a predetermined number of classifications; receiving information indicating the imaged shape classification from the construction site support system; selecting, from the plurality of first classifications based on the database, a type of lighting fixture that belongs to a first classification that corresponds to the shape of the existing lighting fixture classified into the imaged shape classification; and displaying lighting fixtures of the selected type on a display of the terminal device as replacement candidates for the existing lighting fixture.

[0029] This control method can present the type of a corresponding new lighting fixture to the user via the terminal device based on a captured image of the existing lighting fixture.

[0030] Technique 8 is a storage medium that stores a program for executing the control method of technique 7.

[0031] Such a storage medium can present the type of a corresponding new lighting fixture to the user via the terminal device based on a captured image of the existing lighting fixture.

[0032] Technique 9 is a program for executing the control method of Technique 7.

[0033] According to such a program, the terminal device can present to the user the type of a corresponding new lighting fixture based on a captured image of the existing lighting fixture.

[0034] An information provision method (Technology 10) according to one aspect of the present disclosure is an information provision method in a construction site support system that is connected to a terminal device via a network and includes a database that stores types of lighting fixtures in correspondence with a plurality of first classifications based on shape information used in a lighting fixture catalog and a plurality of second classifications that are subclassifications of the first classifications and that represent characterization of information related to visual shape, the information provision method comprising the steps of: acquiring an image of an existing lighting fixture installed in a construction space; classifying the shape of the existing lighting fixture into an imaged shape classification that is one of a predetermined number of classifications using a trained model that has learned the relationship between the imaged images of the plurality of lighting fixtures and the shapes of the plurality of lighting fixtures; selecting, from the plurality of second classifications based on the database, a type of lighting fixture that belongs to the second classification that corresponds to the shape of the existing lighting fixture classified into the imaged shape classification; and displaying lighting fixtures of the selected type on the terminal device as replacement candidates for the existing lighting fixture.

[0035] This information providing method can present to the user the type of a corresponding new lighting fixture based on a captured image of the existing lighting fixture.

[0036] Technique 11 is the information providing method of technique 10, in which the first category includes bracketing.

[0037] Such an information providing method can assist the user in identifying the type of lighting fixture when the corresponding newly installed lighting fixture is a bracket.

[0038] Technology 12 is the information provision method of Technology 10 or Technology 11, wherein the second classification includes any one of a line type representing lighting attached to a wall surface and having a long, narrow shape, a square type representing lighting attached to a wall surface and having a rectangular parallelepiped shape when viewed from the front and exposed from the wall surface, and a round type representing lighting attached to a wall surface and having a circular shape when viewed from the front and exposed from the wall surface.

[0039] Such an information providing method can assist the user in identifying the type of lighting fixture when the corresponding newly installed lighting fixture is a bracket.

[0040] Technique 13 is an information providing method according to any one of techniques 10 to 12, in which the first category includes a ceiling light.

[0041] Such an information providing method can assist the user in identifying the type of lighting fixture when the corresponding newly installed lighting fixture is a ceiling light.

[0042] Technology 14 is the information providing method of any of Technology 10 to 13, wherein the second classification includes any one of a line type representing a long and thin lighting attached to a ceiling surface, a square type representing a rectangular parallelepiped lighting exposed from the ceiling surface and attached to the ceiling surface, and a round type representing a circular lighting attached to the ceiling.

[0043] Such an information providing method can assist the user in identifying the type of lighting fixture when the corresponding newly installed lighting fixture is a ceiling light.

[0044] Technology 15 is the information providing method of any one of Technology 10 to Technology 14, wherein the imaging shape classification includes any one of a line type representing an elongated illumination, a square type representing a rectangular parallelepiped illumination, and a round type representing a circular illumination.

[0045] This information providing method can assist the user in identifying the type of lighting fixture when the existing lighting fixture is a bracket or ceiling light.

[0046] Technique 16 is the information providing method according to any one of techniques 10 to 15, wherein the first category includes a direct-mounted base light that is attached directly to a ceiling surface.

[0047] Such an information providing method can assist the user in identifying the type of lighting fixture when the corresponding newly installed lighting fixture is a direct-mount base light.

[0048] Technology 17 is an information provision method according to any one of technologies 10 to 16, wherein the second classification includes a Fuji type that represents lighting attached to the outside of a base with an inverted mountain-shaped side that is attached directly to the ceiling surface, a trough type that represents lighting attached to the outside of a rectangular parallelepiped base that is attached directly to the ceiling surface, a reflector-shade type that is lighting attached to the outside of a rectangular parallelepiped base that is attached directly to the ceiling surface and has a reflective shade, an open-bottom type that represents lighting attached to the inside of a rectangular parallelepiped base that is attached directly to the ceiling surface, and a corner light type that represents lighting attached to the outside of a base with a triangular side that is attached directly to the ceiling surface.

[0049] Such an information providing method can assist the user in identifying the type of lighting fixture when the corresponding newly installed lighting fixture is a direct-mount base light.

[0050] Technology 18 is an information provision method according to any one of technologies 10 to 17, wherein the imaging shape classification includes a Fuji type representing lighting attached to the outside of a base with an inverted mountain-shaped side, a trough type representing lighting attached to the outside of a rectangular parallelepiped base, a reflector-shade type representing lighting attached to the outside of a rectangular parallelepiped base and equipped with a reflective shade, an open-bottom type representing lighting attached to the inside of a rectangular parallelepiped base, and a corner light type representing lighting attached to the outside of a base with triangular sides.

[0051] Such an information providing method can assist the user in identifying the type of lighting fixture when the existing lighting fixture is a direct-mount base light.

[0052] Technique 19 is the information providing method according to any one of techniques 10 to 18, wherein the first category includes a recessed base light that is recessed and attached to a ceiling surface.

[0053] Such an information providing method can assist the user in identifying the type of lighting fixture when the corresponding newly installed lighting fixture is a recessed base light.

[0054] Technology 20 is an information providing method according to any one of technologies 10 to 19, wherein the second classification includes an open-bottom type representing lighting in which a lamp is attached to a fixture embedded in a rectangular recessed hole provided in a ceiling surface, a louvered type representing lighting in which a lamp is attached to a fixture embedded in a rectangular recessed hole provided in a ceiling surface and is equipped with a louver, and a paneled type representing lighting in which a lamp is attached to a fixture embedded in a rectangular recessed hole provided in a ceiling surface and is equipped with a panel.

[0055] Such an information providing method can assist the user in identifying the type of lighting fixture when the corresponding newly installed lighting fixture is a recessed base light.

[0056] Technology 21 is the information providing method of any of Technologies 10 to 20, wherein the imaging shape classification includes an open-bottom type representing a lighting fixture with a lamp attached to a fixture embedded in a recessed hole, a louvered type representing a lighting fixture with a lamp attached to a fixture embedded in a recessed hole and equipped with a louver, and a paneled type representing a lighting fixture with a lamp attached to a fixture embedded in a recessed hole and equipped with a panel.

[0057] Such an information providing method can assist the user in identifying the type of lighting fixture when the existing lighting fixture is a recessed base light.

[0058] Technique 22 is an information providing method according to any one of techniques 10 to 21, in which the first category includes downlights.

[0059] Such an information providing method can assist the user in identifying the type of lighting fixture when the corresponding newly installed lighting fixture is a downlight.

[0060] Technology 23 is an information providing method according to any one of Technologies 10 to 22, wherein the second classification includes an open-bottom circular type representing lighting in which a round lamp is attached to a fixture embedded in a circular recessed hole provided in a ceiling surface, a panel-equipped circular type representing lighting in which a round lamp is attached to a fixture embedded in a circular recessed hole provided in a ceiling surface and the lighting is equipped with a panel, an open-bottom square type representing lighting in which a round lamp is attached to a fixture embedded in a square recessed hole provided in a ceiling surface, an open-bottom type for sloped ceilings representing lighting in which a round lamp is attached to a fixture embedded in a circular recessed hole provided in a sloped ceiling surface, and a multiple type representing lighting in which multiple round lamps are attached to a circular recessed hole provided in a ceiling surface.

[0061] Such an information providing method can assist the user in identifying the type of lighting fixture when the corresponding newly installed lighting fixture is a downlight.

[0062] Technology 24 is an information providing method according to any one of technologies 10 to 23, wherein the imaging shape classification includes an open-bottom circular type representing a lighting fixture with a round lamp attached to a fixture embedded in a circular recessed hole, a panel-equipped circular type representing a lighting fixture with a round lamp attached to a fixture embedded in a circular recessed hole and equipped with a panel, an open-bottom square type representing a lighting fixture with a round lamp attached to a fixture embedded in a square recessed hole, and a multiple type representing a lighting fixture with multiple round lamps attached to a circular recessed hole.

[0063] Such an information providing method can assist the user in identifying the type of lighting fixture when the existing lighting fixture is a downlight.

[0064] Technique 25 is an information providing method according to any one of techniques 10 to 24, in which the first category includes a universal downlight.

[0065] Such an information providing method can assist the user in identifying the type of the corresponding newly installed lighting fixture when the lighting fixture is a universal downlight.

[0066] Technology 26 is an information provision method according to any one of technologies 10 to 25, wherein the second classification includes a circular swivel type that represents lighting in which a round movable lamp is attached to a fixture embedded in a circular recessed hole provided in a ceiling surface, and a square swivel type that represents lighting in which a round movable lamp is attached to a fixture embedded in a square recessed hole provided in a ceiling surface.

[0067] Such an information providing method can assist the user in identifying the type of the corresponding newly installed lighting fixture when the lighting fixture is a universal downlight.

[0068] Technology 27 is the information providing method of any of Technologies 10 to 26, in which the imaging shape classification includes a swivel circular type representing a lighting fixture with a round movable lamp attached to a fixture embedded in a circular recessed hole, and a swivel square type representing a lighting fixture with a round movable lamp attached to a fixture embedded in a square recessed hole.

[0069] Such an information providing method can assist the user in identifying the type of lighting fixture when the existing lighting fixture is a universal downlight.

[0070] Technique 28 is the information providing method of any one of techniques 10 to 27, wherein the database manages the second classification and the imaging shape classification in association with each other.

[0071] In this information providing method, the second classification and the captured shape classification are managed in association with each other in the database, so that lighting fixture type candidates can be presented to the user more efficiently.

[0072] A construction site support system (Technology 29) according to one aspect of the present disclosure is a construction site support system connected to a terminal device via a network and including a database that stores types of lighting fixtures in correspondence with a plurality of first classifications based on shape information used in a lighting fixture catalog and a plurality of second classifications that are subclassifications of the first classifications and that convert information related to visual shape into characters. The computer in the construction site support system acquires an image of an existing lighting fixture installed in a construction space, classifies the shape of the existing lighting fixture into an imaged shape classification that is one of a predetermined number of classifications using a trained model that has learned the relationship between the imaged images of the plurality of lighting fixtures and the shapes of the plurality of lighting fixtures, selects, from the plurality of second classifications based on the database, a type of lighting fixture that belongs to the second classification that corresponds to the shape of the existing lighting fixture classified into the imaged shape classification, and displays the selected type of lighting fixture on the terminal device as a replacement candidate for the existing lighting fixture.

[0073] This construction site support system can present the user with the type of corresponding new lighting fixture based on captured images of existing lighting fixtures. Therefore, even if there are a considerable number of existing lighting fixtures to be replaced and the shapes of the existing lighting fixtures are similar, the user can significantly reduce the time it takes to search for the type of new lighting fixture that corresponds to the shape of the existing lighting fixtures, prevent errors through digitization, and overall improve the efficiency of proposal creation.

[0074] Technology 30 is a terminal device in the construction site support system of Technology 29 that obtains information about the selected type of lighting fixture from the construction site support system and displays the selected type of lighting fixture on a display as a replacement candidate for the existing lighting fixture.

[0075] Such a terminal device can display the type of the newly installed lighting fixture on the display.

[0076] A control method (Technology 31) according to one aspect of the present disclosure is a control method for a terminal device connected to a construction site support system via a network and including a database that stores types of lighting fixtures corresponding to a plurality of first classifications based on shape information used in a lighting fixture catalog and a plurality of second classifications that are subclassifications of the first classifications and that represent characterization of information related to visual shape, the control method comprising the steps of: causing a computer of the terminal device to acquire an image of an existing lighting fixture installed in a construction space; transmitting the acquired image to the construction site support system; using a trained model that has learned the relationship between the imaged images of the plurality of lighting fixtures and the shapes of the plurality of lighting fixtures in the construction site support system, classifying the shape of the existing lighting fixture into an imaged shape classification that is one of a predetermined number of classifications; receiving information indicating the imaged shape classification from the construction site support system; selecting, from the plurality of second classifications based on the database, a type of lighting fixture that belongs to the second classification that corresponds to the shape of the existing lighting fixture classified into the imaged shape classification; and displaying the selected type of lighting fixture on a display of the terminal device as a replacement candidate for the existing lighting fixture.

[0077] According to this control method, the type of a corresponding new lighting fixture can be presented to the user via the terminal device based on a captured image of the existing lighting fixture.

[0078] Technique 32 is a storage medium that stores a program for executing the control method of technique 31.

[0079] Such a storage medium can present the type of a corresponding new lighting fixture to the user via the terminal device based on a captured image of the existing lighting fixture.

[0080] Technique 33 is a program that executes the control method of technique 31.

[0081] According to such a program, the terminal device can present to the user the type of a corresponding new lighting fixture based on a captured image of the existing lighting fixture.

[0082] These comprehensive or specific aspects may be realized as a system, a method, an integrated circuit, a computer program, or a storage medium such as a computer-readable CD-ROM, or may be realized as any combination of a system, a method, an integrated circuit, a computer program, or a storage medium.

[0083] Hereinafter, the embodiments will be specifically described with reference to the drawings.

[0084] The embodiments described below are all comprehensive or specific examples, and the numerical values, shapes, materials, components, arrangement and connection of the components, steps, and order of steps shown in the following embodiments are merely examples and are not intended to limit the present disclosure.

[0085] Furthermore, each figure is a schematic diagram and is not necessarily an exact illustration. Therefore, for example, the scales and the like do not necessarily match in each figure. Furthermore, in each figure, substantially the same configurations are assigned the same reference numerals, and duplicate explanations may be omitted or simplified.

[0086] (Embodiment) Hereinafter, a construction site support system, an information providing method, and a control method according to the present embodiment will be described with reference to Figs.

[0087] FIG. 1 is a diagram illustrating a scenario in which a construction site support system according to an embodiment is applied. Here, the left side of FIG. 1 shows a state in which lighting fixtures 20 to be replaced by a user are installed in a building 100, and the right side of FIG. 1 shows examples of specific shapes belonging to the types of lighting fixtures 20 installed in the building 100. As shown in FIG. 1 , various types of lighting fixtures 20 may be installed in the building 100. (1) is a recessed base light or a direct-mounted base light. A base light is a lighting fixture 20 having a base that is recessed or directly mounted in a ceiling. (2) is a downlight or a universal downlight. A downlight is a lighting fixture 20 having a fixture and a round lamp that is recessed in a ceiling through a circular or rectangular recessed hole. (3) is a bracket. The bracket is a lighting fixture 20 that is attached to a wall and has a cover. (4) is a ceiling light. A ceiling light is a lighting fixture 20 that is attached to a ceiling and has a cover. (5) is a spotlight. 1 are examples of the lighting fixture 20, and there is no limitation on the type of the lighting fixture 20. The lighting fixture 20 may be an emergency light, a sign light, a chandelier, a pendant light, or the like.

[0088] FIG. 2 is a diagram illustrating an overview of a construction site support system 50 according to an embodiment. The diagram illustrates the overall flow of operations and processes performed in the construction site support system 50 until candidate types of replacement lighting fixtures 20 are presented. The user captures an image of the existing lighting fixture 20. The construction site support system 50 then uses the captured image to identify whether the existing lighting fixture 20 falls into one of the imaged shape classifications based on a pre-set imaged shape classification. Next, based on the catalog classification and the category classification-shape classification correspondence table, the system selects category candidates corresponding to the identified imaged shape classification and presents them to the user. In response, when the user selects a category to which the existing lighting fixture 20 falls from the presented category candidates, the construction site support system 50 presents candidate types of the new lighting fixture 20 to the user.

[0089] [Configuration] First, a description will be given of the configuration of the construction site support system 50 according to the embodiment. Fig. 3 is a block diagram showing the functional configuration of the construction site support system 50 according to the embodiment.

[0090] 3 , the construction site support system 50 includes a terminal device 30 and a server 40. The construction site support system 50 is a system that can present the type of lighting fixture 20 to be installed to a user via the terminal device 30. The type of lighting fixture 20 is information unique to each lighting fixture 20 product, such as product number information or model number information.

[0091] The building 100 is a structure in which a plurality of lighting fixtures 20 are installed. The construction site support system 50 is applied to the building 100. The building 100 may be the entire building or a part of the building. Specifically, the building 100 is an office building, a factory, a warehouse, an office floor, a tenant space, or the like. The building 100 is equipped with a wiring fixture 101. The wiring fixture 101 is a fixture for supplying power to the lighting fixtures 20. Note that the lighting fixtures 20 may be installed outside the building 100.

[0092] The lighting fixture 20 is a fixture having a lighting function. Specifically, the lighting fixture 20 includes a light source 21 and a fixture body 22.

[0093] Light source 21 emits light into the indoor space so that lighting device 20 can illuminate the indoor space. Light source 21 is realized by, for example, an LED (Light Emitting Diode) element. Note that light source 21 may also be realized by other light-emitting elements such as a semiconductor laser, an organic EL (Electro Luminescence), or an inorganic EL.

[0094] The fixture body 22 is a structure that holds the light source 21 and has the function of supplying power to the light source 21. The fixture body 22 includes, for example, a socket, an adapter, a circuit board, a structure that holds the circuit board, and a light-projecting cover. The fixture body 22 is connected to the wiring fixture 101.

[0095] The terminal device 30 is, for example, an information terminal device such as a smartphone or tablet terminal used by a user. The user of the terminal device 30 is, for example, a consumer who uses the lighting fixture 20, or a contractor (worker) who changes the lighting fixture 20. The user can use the terminal device 30 to obtain candidate type information for a suitable lighting fixture 20 when changing an existing lighting fixture 20 to a new lighting fixture 20. Specifically, the terminal device 30 includes an imaging unit 31, an information processing unit 32, a display unit 33, a storage unit 34, an operation receiving unit 35, and a communication unit 36.

[0096] In accordance with instructions from the user, the imaging unit 31 captures an image of the existing lighting fixture 20. The imaging unit 31 is realized by, for example, a camera.

[0097] The information processing unit 32 performs information processing to allow the user to use the terminal device 30 to obtain candidate type information for compatible lighting fixtures 20. The information processing unit 32 is realized, for example, by a microcomputer, but may also be realized by a processor or a dedicated circuit. The functions of the information processing unit 32 are realized when the microcomputer or processor constituting the information processing unit 32 executes a computer program stored in the storage unit 34.

[0098] The display unit 33 is a display for presenting an image to the user, for example, displaying an image for the user to select the type of lighting fixture to be newly installed. The display unit 33 is realized by a display panel such as a liquid crystal panel or an organic EL (Electronic Luminescence) panel.

[0099] The storage unit 34 is a storage device that stores computer programs and the like executed by the information processing unit 32. The computer programs stored in the storage unit 34 include a predetermined application program for identifying the type of lighting fixture 20. The storage unit 34 is realized by, for example, a semiconductor memory.

[0100] The operation reception unit 35 receives operations from the user and is realized by, for example, a touch panel.

[0101] The communication unit 36 ​​is a communication circuit (communication module) that enables the terminal device 30 to communicate with the server 40 via a public network 70 such as the Internet. The communication performed by the communication unit 36 ​​is, for example, wireless communication. There are no particular limitations on the communication standard of the communication performed by the communication unit 36.

[0102] Server 40 is a computer device that provides services, and may be, for example, one or more servers located outside building 100. Server 40 stores information about lighting fixtures 20. Server 40 can communicate with terminal device 30 via public network 70. Server 40 specifically includes a communication unit 41, an information processing unit 42, and a storage unit 43.

[0103] The communication unit 41 is a communication circuit (communication module) that enables the server 40 to communicate with the terminal device 30 via the public network 70. The communication performed by the communication unit 41 is, for example, wireless communication. There are no particular limitations on the communication standard of the communication performed by the communication unit 41.

[0104] The information processing unit 42 performs information processing to allow the user to identify the type of lighting device 20. The information processing unit 42 is realized, for example, by a microcomputer, but may also be realized by a processor or a dedicated circuit. The functions of the information processing unit 42 are realized when the microcomputer or processor constituting the information processing unit 42 executes a computer program stored in the storage unit 43. The information processing unit 42 specifically includes an acquisition unit 421, an estimation unit 422, and an output unit 423.

[0105] The acquisition unit 421 communicates with the terminal device 30 via the communication unit 41 and acquires captured images of the existing lighting fixtures 20 and input information such as user selections.

[0106] The estimation unit 422 uses the image classification model 62 stored in the storage unit 43 to estimate the captured shape classification 61 from the shape of the captured lighting device 20 .

[0107] The output unit 423 outputs the output information to the terminal device 30 via the communication unit 41 .

[0108] The storage unit 43 is a storage device that stores the captured shape classification 61, the image classification model 62, the catalog 63, the first classification 64, the second classification 65, and the computer programs executed by the information processing unit 42. The computer programs stored in the storage unit 43 include a predetermined application program for identifying the type of lighting fixture 20. The storage unit 43 is realized by, for example, a semiconductor memory.

[0109] The imaged shape classification 61 is information indicating a shape classification used to classify a captured image of a lighting fixture 20 into a predetermined classification based on the shape of the lighting fixture. Fig. 4 is a diagram showing an example of the imaged shape classification in the construction site support system 50 according to the embodiment. As shown in Fig. 4, the imaged shape classification 61 includes 19 types of shape classifications, such as a direct-mounted base light, a recessed base light, a square, a pendant light, a chandelier, a system ceiling light, a downlight, a universal downlight, a square downlight, a line type, a square type, a round type, a spotlight, an emergency light (LED), an emergency light (fluorescent light), a dedicated emergency light, a street light, a pole type, and a signal light.

[0110] The image capture shape classification 61 may be a character representation of the shape of the lighting fixture 20, or may be a simple symbol or number, as long as it is a classification based on the shape of the lighting fixture 20. When the shape of the lighting fixture 20 is a character representation, the image capture shape classification 61 may include, for example, a "line type" representing a long, thin lighting fixture, a "square type" representing a rectangular parallelepiped lighting fixture, and a "round type" representing a circular lighting fixture. Furthermore, the image capture shape classification 61 may include, for example, a "Fuji type" representing a lighting fixture attached to the outside of a base with an inverted mountain-shaped side, a "trough type" representing a lighting fixture attached to the outside of a rectangular parallelepiped base, a "reflector-shade type" representing a lighting fixture attached to the outside of a rectangular parallelepiped base and equipped with a reflective shade, an "open-bottom type" representing a lighting fixture attached to the inside of a rectangular parallelepiped base, and a "corner light type" representing a lighting fixture attached to the outside of a base with triangular sides. The imaging shape classification 61 includes, for example, an "open-bottom type" that represents a lighting fixture with a lamp attached to a fixture recessed in a recessed hole, a "louvered type" that represents a lighting fixture with a lamp attached to a fixture recessed in a recessed hole and equipped with a louver, and a "panel-mounted type" that represents a lighting fixture with a lamp attached to a fixture recessed in a recessed hole and equipped with a panel. The imaging shape classification 61 also includes, for example, an "open-bottom circular type" that represents a lighting fixture with a round lamp attached to a fixture recessed in a circular recessed hole, a "panel-mounted circular type" that represents a lighting fixture with a round lamp attached to a fixture recessed in a circular recessed hole and equipped with a panel, an "open-bottom square type" that represents a lighting fixture with a round lamp attached to a fixture recessed in a square recessed hole, and a "multi-lamp type" that represents a lighting fixture with multiple round lamps attached to a circular recessed hole. Furthermore, the imaging shape classification 61 includes, for example, a "circular swivel" that indicates a lighting fixture that is embedded in a circular recess and has a round movable lamp attached thereto, and a "square swivel" that indicates a lighting fixture that is embedded in a square recess and has a round movable lamp attached thereto, etc. Furthermore, the imaging shape classification 61 may include all of these, may include some of these, or may include others.

[0111] Image classification model 62 is a machine learning model for image classification that can classify captured images of existing lighting fixtures 20 based on captured shape classification 61. Image classification model 62 is created through machine learning by learning unit 80.

[0112] The catalog 63 is a list of information on the types of lighting fixtures 20. The catalog 63 manages the specifications, functions, shapes, prices, etc. of the lighting fixtures 20 in association with each type of lighting fixture 20.

[0113] The first classification 64 is information indicating a classification based on shape information used in the lighting fixture catalog 63. For example, the first classification 64 includes brackets. The first classification 64 also includes ceiling lights. The first classification 64 also includes direct-mounted base lights that are directly attached to a ceiling surface. The first classification 64 also includes recessed base lights that are recessed into a ceiling surface. The first classification 64 also includes downlights. The first classification 64 also includes universal downlights. Furthermore, the first classification 64 may include all of these, some of them, or others.

[0114] The second classification 65 is information indicating a classification obtained by converting the shape information into characters. The second classification 65 includes, for example, a "line type" that represents a long, thin lighting fixture attached to a wall, a "square type" that represents a lighting fixture attached to a wall and exposed from the wall and shaped like a rectangular parallelepiped when viewed from the front, and a "round type" that represents a lighting fixture attached to a wall and exposed from the wall and shaped like a circular parallelepiped when viewed from the front. The second classification 65 also includes, for example, a "line type" that represents a long, thin lighting fixture attached to a ceiling, a "square type" that represents a lighting fixture attached to a ceiling and shaped like a rectangular parallelepiped when viewed from the front, and a "round type" that represents a circular lighting fixture attached to a ceiling. The second category 65 also includes, for example, a "Fuji-type" light fixture attached to the exterior of a base with an inverted mountain-shaped side mounted directly to the ceiling surface, a "trough-type" light fixture attached to the exterior of a rectangular base mounted directly to the ceiling surface, a "reflector-shade-equipped" light fixture attached to the exterior of a rectangular base mounted directly to the ceiling surface and equipped with a reflective shade, an "open-bottom" light fixture attached to the interior of a rectangular base mounted directly to the ceiling surface, and a "corner light" light fixture attached to the exterior of a triangular base mounted directly to the ceiling surface. The second category 65 also includes, for example, an "open-bottom" light fixture with a lamp mounted in a fixture recessed in a rectangular recessed hole in the ceiling surface, a "louver-equipped" light fixture with a lamp mounted in a fixture recessed in a rectangular recessed hole in the ceiling surface and equipped with a louver, and a "panel-equipped" light fixture with a lamp mounted in a fixture recessed in a rectangular recessed hole in the ceiling surface and equipped with a panel. In addition, the second category 65 includes, for example, an "open-bottom circular type" which represents a lighting fixture with a round lamp attached to a fixture recessed in a circular recessed hole in the ceiling surface, a "panel-equipped circular type" which represents a lighting fixture with a round lamp attached to a fixture recessed in a circular recessed hole in the ceiling surface and is equipped with a panel, an "open-bottom square type" which represents a lighting fixture with a round lamp attached to a fixture recessed in a square recessed hole in the ceiling surface, an "open-bottom type for sloped ceilings" which represents a lighting fixture with a round lamp attached to a fixture recessed in a circular recessed hole in a sloped ceiling surface, and a "multiple type" which represents a lighting fixture with multiple round lamps attached to a circular recessed hole in the ceiling surface.The second category 65 includes, for example, a "circular swivel type" that indicates a lighting fixture with a round movable lamp attached to a fixture embedded in a circular recessed hole in the ceiling surface, and a "square swivel type" that indicates a lighting fixture with a round movable lamp attached to a fixture embedded in a square recessed hole in the ceiling surface. Furthermore, the second category 65 may include all of these, some of them, or others.

[0115] Fig. 5 is a diagram showing an example of the first classification 64 and the second classification 65 in the construction site support system 50 according to the embodiment. In Fig. 5, for example, a Fuji-type direct-mount base light is managed as a direct-mount base light in the first classification 64 and as a Fuji-type in the second classification 65. Also, for example, a line-type ceiling light is managed as a ceiling light in the first classification 64 and as a line-type in the second classification 65.

[0116] The learning unit 80 creates an image classification model for classifying images of lighting devices 20 based on captured shape classification, for example, by supervised learning. The learning unit 80 is realized, for example, by a microcomputer, but may also be realized by a processor or a dedicated circuit. The learning unit 80 communicates with the server 40 via the communication unit 41 and can store the created image classification model 62 in the storage unit 43. The learning unit 80 may be included in the server 40.

[0117] [Operation] The operation of the construction site support system 50 according to the embodiment will be described below.

[0118] As described above, the construction site support system 50 according to the embodiment classifies the captured images of existing lighting fixtures 20 based on the captured shape classification 61, thereby identifying the shape of the captured images of existing lighting fixtures 20 and presenting the type of new lighting fixtures 20 to the user.

[0119] The classification based on the captured image shape classification 61 is performed by a trained image classification model 62. For example, the captured image shape classification shown in FIG. 4 is a classification based on the shapes of 19 types of lighting fixtures 20: direct-mounted base light, recessed base light, square, pendant light, chandelier, system ceiling light, downlight, universal downlight, square downlight, line type, square type, round, spotlight, emergency light (LED), emergency light (fluorescent), dedicated emergency light, street light, pole type, and indicator light. The construction site support system 50 classifies the captured image using the trained image classification model 62, thereby being able to identify whether the existing lighting fixture 20 has one of the 19 types of shapes.

[0120] [Creating an Image Classification Model] The method for creating the image classification model 62 is, for example, supervised learning using a training dataset. Specifically, for example, a designer (person) labels each of multiple image data sets of lighting fixtures 20 as training data into one of 19 types: direct-mounted base light, recessed base light, square, pendant light, chandelier, system ceiling light, downlight, universal downlight, square downlight, line type, square type, round, spotlight, emergency light (LED), emergency light (fluorescent), dedicated emergency light, street light, pole type, and indicator light. The number and content of the labeling types are merely examples and are not limited thereto. The learning unit 80 creates the image classification model 62 through machine learning using the input labeled data (image data and its shape type). The created image classification model 62 is stored in the storage unit 43.

[0121] [Operation Example 1] The operation of the construction site support system 50 when the first classification 64 and the second classification 65 are stored in the memory unit 43 of the server 40 will be described as Operation Example 1. Fig. 6 is a sequence diagram showing the operation of Operation Example 1 of the construction site support system 50 according to the embodiment.

[0122] First, the user captures an image of the existing lighting fixture 20 to be replaced using the imaging unit 31 of the terminal device 30. That is, in the terminal device 30, the information processing unit 32 acquires the captured image of the existing lighting fixture 20 (S101).

[0123] The captured image acquired by the information processing unit 32 is transmitted to the server 40 via the communication unit 36, the public network 70, and the communication unit 41 (S102).

[0124] In the server 40, when the acquisition unit 421 acquires an image, the estimation unit 422 uses the image shape classification 61 and image classification model 62 stored in the memory unit 43 to determine which of the image shape classifications 61 the existing lighting fixture 20 shown in the image corresponds to (S103).

[0125] Hereinafter, some operations will differ depending on the imaging shape classification of the existing lighting fixture 20. Therefore, for example, an operation example 1-1 will be described in which the imaging shape classification of the existing lighting fixture 20 is a direct-mount base light, and an operation example 1-2 will be described in which the imaging shape classification is a square bracket.

[0126] [Operation Example 1-1] A case will be described where the existing lighting fixture 20 is, for example, a direct-mount base light. Direct-mount base lights come in various types, such as a Fuji-type direct-mount base light, which is a light that is attached to the outside of a base with an inverted mountain-shaped side, a trough-type direct-mount base light, which is a light that is attached to the outside of a rectangular parallelepiped base, and a reflector-shade-equipped direct-mount base light, which is a light that is attached to the outside of a rectangular parallelepiped base and has a reflective shade.

[0127] Here, the image classification model 62 according to this embodiment can classify the captured image as a "direct-mounted base light" if the existing lighting fixture 20 is a Fuji-type direct-mounted base light, a trough-type direct-mounted base light, or a direct-mounted base light with a reflector cap.

[0128] 6, after the image-captured shape classification is identified as a direct-mount base light, the estimation unit 422 of the server 40 identifies the catalog classification by comparing it with the first classification 64 and the second classification 65 stored in the storage unit 43 (S104). At this time, the catalog classification is identified as a Fuji-type direct-mount base light, a trough-type direct-mount base light, or a reflector-shade-equipped direct-mount base light.

[0129] Next, the output unit 423 of the server 40 outputs the identified catalog classification information to the terminal device 30 via the communication unit 41, the public network 70, and the communication unit 36 ​​(S105). The information processing unit 32 of the terminal device 30 displays the acquired identified catalog classification on the display unit 33 (S106). Next, the operation accepting unit 35 accepts a selection of a catalog classification to which the type of the user's actual existing lighting fixture 20 belongs from the identified catalog classifications displayed on the display unit 33 (S107).

[0130] At this time, a screen such as that shown in Fig. 8 is displayed on the display unit 33. Fig. 8 is a diagram showing an example of a screen (in the case of a Fuji-type direct-mount base light) displayed on the display unit 33 of the terminal device 30 during operation of the construction site support system 50 according to the embodiment. As shown in Fig. 8, the display unit 33 displays a Fuji-type direct-mount base light, a trough-type base light, and a reflector-type direct-mount base light as category candidates for the existing lighting fixture 20. The user selects the Fuji-type direct-mount base light via the operation reception unit 35.

[0131] 6 , when the operation accepting unit 35 accepts a user operation, the information processing unit 32 transmits the selected catalog category to the server 40 via the communication unit 36, the public network 70, and the communication unit 41 (S108). When the acquisition unit 421 of the information processing unit 42 acquires the selected catalog category, the output unit 423 identifies candidate types of the new lighting fixture 20 that correspond to the selected catalog category based on the catalog 63 stored in the storage unit 43 (S109). Next, the output unit 423 transmits information on the identified candidate types of the new lighting fixture 20 to the terminal device 30 via the communication unit 41, the public network 70, and the communication unit 36 ​​(S110).

[0132] Finally, the information processing unit 32 of the terminal device 30 displays the acquired candidate type information for the new lighting fixture 20 on the display unit 33 and accepts the user's selection of the type of the new lighting fixture 20 via the operation acceptance unit 35 (S111). At this time, a screen such as that shown in FIG. 9 is displayed on the display unit 33. FIG. 9 is a diagram showing another example of a screen (in the case of a Fuji-type direct-mount base light) displayed on the display unit 33 of the terminal device 30 during operation of the construction site support system 50 according to the embodiment. As shown in FIG. 9, the display unit 33 displays multiple types of Fuji-type direct-mount base lights as candidates for the new lighting fixture 20. The user selects one of the displayed Fuji-type direct-mount base lights as the new lighting fixture 20 via the operation acceptance unit 35.

[0133] In this way, according to operation example 1-1, if the existing lighting fixture 20 is classified as a Fuji-type direct-mount base light or the like based on the image capture shape classification 61, the category classification of the existing lighting fixture 20 can be identified based on the first classification 64 and the second classification 65, and candidate types of the new lighting fixture 20 can be presented to the user.

[0134] [Operation Example 1-2] A case will be described where the existing lighting fixture 20 is, for example, a square-type bracket. One type of bracket is a square-type bracket, which represents a lighting fixture that is attached to a wall and exposed from the wall, and has a rectangular parallelepiped shape when viewed from the front. Another type of ceiling light is a square-type ceiling light, which represents a lighting fixture that is attached to a ceiling and exposed from the ceiling. Here, the image classification model 62 according to the present embodiment can classify a captured image as "square" when the existing lighting fixture 20 is a square-type bracket or a square-type ceiling light.

[0135] 6, after the image capture shape classification is identified as square, the estimation unit 422 of the server 40 identifies the catalog classification by comparing it with the first classification 64 and the second classification 65 stored in the storage unit 43 (S104). At this time, the catalog classification is identified as a square bracket and a square ceiling light.

[0136] Next, the output unit 423 of the server 40 outputs the identified catalog classification information to the terminal device 30 via the communication unit 41, the public network 70, and the communication unit 36 ​​(S105). The information processing unit 32 of the terminal device 30 displays the acquired identified catalog classification on the display unit 33 (S106). Next, the operation accepting unit 35 accepts a selection of a catalog classification to which the type of the user's actual existing lighting fixture 20 belongs from the identified catalog classifications displayed on the display unit 33 (S107).

[0137] At this time, a screen such as that shown in Fig. 10 is displayed on the display unit 33. Fig. 10 is a diagram showing an example of a screen (in the case of a square bracket) displayed on the display unit 33 of the terminal device 30 during operation of the construction site support system 50 according to the embodiment. As shown in Fig. 10, a square bracket and a square ceiling light are displayed on the display unit 33 as category candidates for the existing lighting fixture 20. The user selects the square bracket via the operation reception unit 35.

[0138] When the operation accepting unit 35 accepts the user's operation, the information processing unit 32 transmits the selected catalog category to the server 40 via the communication unit 36, the public network 70, and the communication unit 41 (S108). When the acquisition unit 421 of the information processing unit 42 acquires the selected catalog category, the output unit 423 identifies candidate types of the new lighting fixture 20 that correspond to the selected catalog category based on the catalog 63 stored in the storage unit 43 (S109). Next, the output unit 423 transmits the identified candidate type information of the new lighting fixture 20 to the terminal device 30 via the communication unit 41, the public network 70, and the communication unit 36 ​​(S110).

[0139] Finally, the information processing unit 32 of the terminal device 30 displays the acquired candidate type information for the new lighting fixture 20 on the display unit 33 and accepts the user's selection of the type of the new lighting fixture 20 via the operation acceptance unit 35 (S111). At this time, a screen such as that shown in FIG. 11 is displayed on the display unit 33. FIG. 11 is a diagram showing another example of a screen (in the case of a square bracket) displayed on the display unit 33 of the terminal device 30 during operation of the construction site support system 50 according to the embodiment. As shown in FIG. 11, the display unit 33 displays multiple types of square brackets as candidates for the new lighting fixture 20. The user selects one of the displayed square brackets as the new lighting fixture 20 via the operation acceptance unit 35.

[0140] In this way, according to operation example 1-2, if the existing lighting fixture 20 is classified as a square bracket or the like based on the imaging shape classification 61, the category classification of the existing lighting fixture 20 can be identified based on the first classification 64 and the second classification 65, and candidate types of the new lighting fixture 20 can be presented to the user.

[0141] [Operations of Terminal Device 30 and Server 40] The operations of Operation Example 1 of the construction site support system 50 according to the embodiment have been described above. Here, the operations of the terminal device 30 and the server 40 in Operation Example 1 of the construction site support system 50 according to the embodiment will be described. FIG. 7 is a flowchart showing the operations of Operation Example 1 of the construction site support system 50 according to the embodiment. (a) of FIG. 7 is a flowchart showing the operations of the terminal device 30 in the construction site support system 50 according to the embodiment, and (b) of FIG. 7 is a flowchart showing the operations of the server 40 in the construction site support system 50 according to the embodiment. The symbols assigned to each step in FIG. 7 are the same as the symbols assigned to the corresponding steps in FIG. 6.

[0142] 7A, terminal device 30 first captures an image of existing lighting fixture 20 (S101) and transmits the captured image to server 40 (S102). Next, terminal device 30 acquires catalog category information (S105), accepts the user's selection of a catalog category (S106-S107), transmits the selected catalog category information to the server (S108), acquires candidate category information from server 40 (S110), and accepts the user's category selection (S111).

[0143] 7B, the server 40 first acquires the captured image (S102), identifies the catalog category (S103-S104), and transmits the identified catalog category information (S105). Next, the server 40 acquires the selected catalog category information (S108), identifies category candidates (S109), and transmits the identified category candidate information (S110).

[0144] Detailed explanation of each step is omitted since it is the same as that explained using FIG.

[0145] As described above, according to Operation Example 1, the server 40 classifies captured images of the existing lighting fixtures 20 based on the captured shape classification 61, identifies the category classification of the existing lighting fixtures 20 based on the first classification 64 and the second classification 65, and presents to the user candidate types of the new lighting fixtures 20. Therefore, the time required to search for the type of the new lighting fixtures 20 can be significantly reduced, digitization can prevent the occurrence of writing errors, and the overall efficiency of proposal creation can be improved.

[0146] Other Embodiments [Modification 1] In the first operational example, the step of identifying the catalog classification from the identified imaging shape classification is executed by the server 40, but may be executed by the terminal device 30.

[0147] The following describes a first modification of the construction site support system 50 according to the embodiment. Fig. 12 is a block diagram showing the functional configuration of the first modification of the construction site support system according to the embodiment. As shown in Fig. 12, a first classification 64 and a second classification 65 are stored in the storage unit 34 of the terminal device 30, and an image shape classification 61, an image classification model 62, and a catalog 63 are stored in the storage unit 43 of the server 40.

[0148] Fig. 13 is a sequence diagram showing the operation of Modified Example 1 of the construction site support system 50 according to the embodiment. Fig. 14 is a flowchart showing the operation of Modified Example 1 of the construction site support system 50 according to the embodiment. (a) of Fig. 14 is a flowchart showing the operation of the terminal device in Modified Example 1 of the construction site support system 50 according to the embodiment. (b) of Fig. 14 is a flowchart showing the operation of the server in Modified Example 1 of the construction site support system 50 according to the embodiment. In Fig. 13, (a) of Fig. 14 and (b) of Fig. 14, substantially the same steps are assigned the same reference numerals, and therefore redundant explanations will be omitted.

[0149] First, the user captures an image of the existing lighting fixture 20 to be replaced using the imaging unit 31 of the terminal device 30. The information processing unit 32 acquires the captured image of the existing lighting fixture 20 (S201).

[0150] The captured image acquired by the information processing unit 32 is transmitted to the server 40 via the communication unit 36, the public network 70, and the communication unit 41 (S202).

[0151] When the acquisition unit 421 of the server 40 acquires the captured image, the estimation unit 422 identifies to which of the captured shape classes 61 the existing lighting fixture 20 shown in the captured image belongs, using the captured shape classes 61 and the image classification model 62 stored in the storage unit 43 (S203). Next, the output unit 423 outputs the identified captured shape class information to the terminal device 30 via the communication unit 41, the public network 70, and the communication unit 36 ​​(S204).

[0152] The information processing unit 32 of the terminal device 30 identifies the catalogue category by comparing it with the first category 64 and the second category 65 stored in the storage unit 34 (S205).

[0153] The information processing unit 32 of the terminal device 30 displays the identified catalog category on the display unit 33 (S206). Next, the operation accepting unit 35 accepts a selection of a catalog category to which the type of the actual existing lighting fixture 20 belongs from the identified catalog categories displayed on the display unit 33 (S207).

[0154] When the operation accepting unit 35 accepts a user operation, the information processing unit 32 transmits the selected catalog category information to the server 40 via the communication unit 36, the public network 70, and the communication unit 41 (S208). When the acquisition unit 421 of the information processing unit 42 acquires the selected catalog category, the output unit 423 identifies candidate types of the new lighting fixture 20 that correspond to the selected catalog category based on the catalog 63 stored in the storage unit 43 (S209). Next, the output unit 423 transmits the identified candidate type information of the new lighting fixture 20 to the terminal device 30 via the communication unit 41, the public network 70, and the communication unit 36 ​​(S210).

[0155] Finally, the information processing unit 32 of the terminal device 30 displays the acquired candidate type information for the new lighting fixture 20 on the display unit 33, and accepts the user's selection of the type of the new lighting fixture 20 via the operation accepting unit 35 (S211).

[0156] As described above, according to the first modification, the server 40 classifies the captured images of the existing lighting fixtures 20 based on the captured image shape classification 61, the terminal device 30 identifies the category classification of the existing lighting fixtures 20 based on the first classification 64 and the second classification 65, and it is possible to present to the user candidate types of the new lighting fixtures 20. Therefore, it is possible to significantly reduce the time required to search for the type of the new lighting fixtures 20, prevent errors in writing by digitizing the data, and overall improve the efficiency of proposal creation.

[0157] [Variation 2] A case will be described in which captured shape classification 61 used in image classification model 62 is a classification associated with first classification 64. In other words, image classification model 62 can classify captured images of existing lighting fixtures 20 based on category classification.

[0158] The following describes a second modification of the construction site support system 50 according to this embodiment. Fig. 15 is a block diagram showing the functional configuration of the second modification of the construction site support system 50 according to the embodiment. As shown in Fig. 15, an image shape classification 61, an image classification model 62, a catalog 63, and a first classification 64 are stored in the storage unit 43.

[0159] Fig. 16 is a sequence diagram showing the operation of Modified Example 2 of the construction site support system 50 according to the embodiment. Fig. 17 is a flowchart showing the operation of Modified Example 2 of the construction site support system 50 according to the embodiment. (a) of Fig. 17 is a flowchart showing the operation of the terminal device 30 in Modified Example 2 of the construction site support system 50 according to the embodiment. (b) of Fig. 17 is a flowchart showing the operation of the server 40 in Modified Example 2 of the construction site support system 50 according to the embodiment. In Fig. 16, (a) of Fig. 17 and (b) of Fig. 17, substantially the same steps are denoted by the same reference numerals, and therefore duplicate explanations will be omitted.

[0160] First, the user captures an image of the existing lighting fixture 20 to be replaced using the imaging unit 31 of the terminal device 30. The information processing unit 32 acquires the captured image of the existing lighting fixture 20 (S301).

[0161] The captured image acquired by the information processing unit 32 is transmitted to the server 40 via the communication unit 36, the public network 70, and the communication unit 41 (S302).

[0162] When the acquisition unit 421 of the server 40 acquires the captured image, the estimation unit 422 uses the captured shape classification 61 and the image classification model 62 stored in the storage unit 43 to identify which of the captured shape classifications 61 the existing lighting fixture 20 shown in the captured image belongs to, and identifies the catalog classification using the first classification 64 (S303). Next, the output unit 423 outputs the identified catalog classification information to the terminal device 30 via the communication unit 41, the public network 70, and the communication unit 36 ​​(S304).

[0163] The information processing unit 32 of the terminal device 30 displays the acquired catalog categories on the display unit 33 (S305). Next, the operation accepting unit 35 accepts a selection of a catalog category to which the type of the actual existing lighting fixture 20 belongs from the identified catalog categories displayed on the display unit 33 (S306).

[0164] When the operation accepting unit 35 accepts the user's operation, the information processing unit 32 transmits the selected catalog category information to the server 40 via the communication unit 36, the public network 70, and the communication unit 41 (S307). When the acquisition unit 421 of the information processing unit 42 acquires the selected catalog category, the output unit 423 identifies candidate types of the new lighting fixture 20 that correspond to the selected catalog category based on the catalog 63 stored in the storage unit 43 (S308). Next, the output unit 423 transmits the identified candidate type information of the new lighting fixture 20 to the terminal device 30 via the communication unit 41, the public network 70, and the communication unit 36 ​​(S309).

[0165] Finally, the information processing unit 32 of the terminal device 30 displays the acquired candidate type information for the new lighting fixture 20 on the display unit 33, and accepts the user's selection of the type of the new lighting fixture 20 via the operation accepting unit 35 (S310).

[0166] As described above, according to Modification 2, the captured images of the existing lighting fixtures 20 are classified in the server 40 based on the captured shape classification 61, the category classification of the existing lighting fixtures 20 is identified based on the first classification 64, and candidate types of the new lighting fixtures 20 can be presented to the user. Therefore, the time required to search for the type of the new lighting fixture 20 can be significantly reduced, and digitization can prevent errors in writing, thereby improving the efficiency of proposal creation overall.

[0167] [Modification 3] In Modification 2, the step of identifying the catalog classification from the identified imaging shape classification (catalog classification) is executed by the server 40, but may be executed by the terminal device 30.

[0168] The following describes Variation 3 of the construction site support system 50 according to this embodiment. Fig. 18 is a block diagram showing the functional configuration of Variation 3 of the construction site support system 50 according to the embodiment. As shown in Fig. 18, a first classification 64 is stored in the storage unit 34, and an image shape classification 61, an image classification model 62, and a catalog 63 are stored in the storage unit 43.

[0169] Fig. 19 is a sequence diagram showing the operation of Modified Example 3 of the construction site support system 50 according to the embodiment. Fig. 20 is a flowchart showing the operation of Modified Example 3 of the construction site support system 50 according to the embodiment. (a) of Fig. 20 is a flowchart showing the operation of the terminal device 30 in Modified Example 3 of the construction site support system 50 according to the embodiment. (b) of Fig. 20 is a flowchart showing the operation of the server 40 in Modified Example 3 of the construction site support system 50 according to the embodiment. In Fig. 19, (a) of Fig. 20 and (b) of Fig. 20, substantially the same steps are denoted by the same reference numerals, and therefore duplicate explanations will be omitted.

[0170] First, the user captures an image of the existing lighting fixture 20 to be replaced using the imaging unit 31 of the terminal device 30. The information processing unit 32 acquires the captured image of the existing lighting fixture 20 (S401).

[0171] The captured image acquired by the information processing unit 32 is transmitted to the server 40 via the communication unit 36, the public network 70, and the communication unit 41 (S402).

[0172] When the acquisition unit 421 of the server 40 acquires the captured image, the estimation unit 422 identifies to which of the captured shape classes 61 the existing lighting fixture 20 shown in the captured image belongs, using the captured shape classes 61 and the image classification model 62 stored in the storage unit 43 (S403). Next, the output unit 423 outputs the identified captured shape class information to the terminal device 30 via the communication unit 41, the public network 70, and the communication unit 36 ​​(S404).

[0173] The information processing unit 32 of the terminal device 30 identifies a catalog category from the acquired image-captured shape category information using the first category 64, and displays the identified catalog category on the display unit 33 (S405). Next, the operation accepting unit 35 accepts a selection of a catalog category to which the type of the actual existing lighting fixture 20 belongs from the identified catalog categories displayed on the display unit 33 (S406).

[0174] When the operation accepting unit 35 accepts the user's operation, the information processing unit 32 transmits the selected catalog category information to the server 40 via the communication unit 36, the public network 70, and the communication unit 41 (S407). When the acquisition unit 421 of the information processing unit 42 acquires the selected catalog category, the output unit 423 identifies candidate types of the new lighting fixture 20 that correspond to the selected catalog category based on the catalog 63 stored in the storage unit 43 (S408). Next, the output unit 423 transmits the identified candidate type information of the new lighting fixture 20 to the terminal device 30 via the communication unit 41, the public network 70, and the communication unit 36 ​​(S409).

[0175] Finally, the information processing unit 32 of the terminal device 30 displays the acquired candidate type information for the new lighting fixture 20 on the display unit 33, and accepts the user's selection of the type of the new lighting fixture 20 via the operation accepting unit 35 (S410).

[0176] As described above, according to Modification 3, the server 40 classifies captured images of the existing lighting fixtures 20 based on the captured image shape classification 61, and the terminal device 30 identifies the category classification of the existing lighting fixtures 20 based on the first classification 64, thereby presenting candidate types of the new lighting fixtures 20 to the user. This significantly reduces the time required to search for the type of the new lighting fixtures 20, prevents errors through digitalization, and improves the overall efficiency of proposal creation. [Other] While the construction site support system, information provision method, and control method according to one or more aspects have been described above based on the embodiments and modifications, the present disclosure is not limited to these embodiments and modifications. As long as they do not deviate from the spirit of the present disclosure, various modifications conceivable by those skilled in the art to the present embodiments and modifications, or configurations constructed by combining components of different embodiments and modifications, may also be included within the scope of one or more aspects.

[0177] The present disclosure is applicable to a construction site support system, particularly to a construction site support system related to site inspections of lighting fixtures.

[0178] DESCRIPTION OF SYMBOLS 20 Lighting fixture 21 Light source 22 Fixture body 30 Terminal device 31 Imaging unit 32 Information processing unit 33 Display unit 34 Memory unit 35 Operation reception unit 36 ​​Communication unit 40 Server 41 Communication unit 42 Information processing unit 421 Acquisition unit 422 Estimation unit 423 Output unit 43 Memory unit 50 Construction site support system 61 Imaged shape classification 62 Image classification model 63 Catalog 64 First classification 65 Second classification 70 Public network 80 Learning unit 100 Building 101 Wiring fixture

Claims

1. An information provision method in a construction site support system connected to a terminal device via a network and equipped with a database storing lighting fixture types corresponding to a plurality of first classifications based on shape information used in a lighting fixture catalog, the information provision method comprising the steps of: acquiring an image of an existing lighting fixture installed in a construction space; classifying the shape of the existing lighting fixture into one of a predetermined number of image shape classifications using a trained model that has learned the relationship between the imaged images of a plurality of lighting fixtures and the shapes of the plurality of lighting fixtures; selecting, from the plurality of first classifications based on the database, a type of lighting fixture belonging to a first classification that corresponds to the shape of the existing lighting fixture classified into the image shape classification; and displaying the selected type of lighting fixture on the terminal device as a replacement candidate for the existing lighting fixture.

2. The information providing method according to claim 1, wherein the first classification includes any one of a direct-mount base light, a recessed base light, a downlight, a spotlight, and a universal downlight.

3. The information providing method according to claim 1, wherein the image shape classification includes any one of a direct-mounted base light, a recessed base light, a down light, a spot light, and a universal down light.

4. The information providing method according to claim 1, wherein the database manages the first classification and the imaging shape classification in association with each other.

5. A construction site support system including a computer connected to a terminal device via a network and equipped with a database storing lighting fixture types corresponding to a plurality of first classifications based on shape information used in a lighting fixture catalog, wherein the computer: acquires an image of an existing lighting fixture installed in a construction space; classifies the shape of the existing lighting fixture into one of a predetermined number of image shape classifications using a trained model that has learned the relationship between the imaged images of a plurality of lighting fixtures and the shapes of a plurality of lighting fixtures; selects, from the plurality of first classifications based on the database, a lighting fixture type belonging to a first classification that corresponds to the shape of the existing lighting fixture classified into the image shape classification; and displays the selected type of lighting fixture on the terminal device as a replacement candidate for the existing lighting fixture.

6. A terminal device in a construction site support system as described in claim 5, which obtains information about the selected type of lighting fixture from the construction site support system, and displays the selected type of lighting fixture on a display as a replacement candidate for the existing lighting fixture.

7. A control method for a terminal device connected to a construction site support system via a network and equipped with a database storing lighting fixture types corresponding to a plurality of first classifications based on shape information used in a lighting fixture catalog, the control method comprising: causing a computer of the terminal device to acquire an image of an existing lighting fixture installed in a construction space; transmitting the acquired image to the construction site support system; using a trained model that has learned the relationship between the imaged images of a plurality of lighting fixtures and the shapes of a plurality of lighting fixtures in the construction site support system, classifying the shape of the existing lighting fixture into one of a predetermined number of imaged shape classifications; receiving information indicating the imaged shape classification from the construction site support system; selecting, from the plurality of first classifications based on the database, a type of lighting fixture belonging to a first classification that corresponds to the shape of the existing lighting fixture classified into the imaged shape classification; and displaying the selected type of lighting fixture on a display of the terminal device as a replacement candidate for the existing lighting fixture.

8. A storage medium storing a program for executing the control method according to claim 7.

9. A program for executing the control method according to claim 7.

10. A method of providing information in a construction site support system connected to a terminal device via a network and equipped with a database storing lighting fixture types in correspondence with a plurality of first classifications based on shape information used in lighting fixture catalogs and a plurality of second classifications that are subclassifications of the first classifications and that convert visual shape information into text, the method comprising the steps of: acquiring an image of an existing lighting fixture installed in a construction space; classifying the shape of the existing lighting fixture into one of a predetermined number of image shape classifications using a trained model that has learned the relationship between the imaged images of the plurality of lighting fixtures and the shapes of the plurality of lighting fixtures; selecting a type of lighting fixture that belongs to the second classification that corresponds to the shape of the existing lighting fixture classified into the image shape classification from the plurality of second classifications based on the database; and displaying the selected type of lighting fixture on the terminal device as a replacement candidate for the existing lighting fixture.

11. The information providing method according to claim 10, wherein the first classification includes brackets.

12. The information provision method according to claim 11, wherein the second classification includes any one of a line type representing a long, thin lighting fixture attached to a wall, a square type representing a lighting fixture attached to a wall and having a rectangular shape when viewed from the front and exposed from the wall, and a round type representing a lighting fixture attached to a wall and having a circular shape when viewed from the front and exposed from the wall.

13. The information providing method according to claim 10, wherein the first category includes ceiling lights.

14. The information provision method according to claim 13, wherein the second classification includes one of a line type representing a long, thin lighting fixture attached to a ceiling surface, a square type representing a rectangular lighting fixture exposed from the ceiling surface and attached to the ceiling surface, and a round type representing a circular lighting fixture attached to a ceiling.

15. An information provision method according to claim 12 or claim 14, wherein the imaging shape classification includes one of a line type representing a long and thin illumination, a square type representing a rectangular parallelepiped illumination, and a round type representing a circular illumination.

16. The information providing method according to claim 10, wherein the first category includes direct-mounted base lights that are attached directly to a ceiling surface.

17. The information provision method of claim 16, wherein the second classification includes: a Fuji type, which represents lighting attached to the outside of a base with an inverted mountain-shaped side attached directly to the ceiling surface; a trough type, which represents lighting attached to the outside of a rectangular base attached directly to the ceiling surface; a reflector-shade type, which is lighting attached to the outside of a rectangular base attached directly to the ceiling surface and has a reflective shade; an open-bottom type, which represents lighting attached to the inside of a rectangular base attached directly to the ceiling surface; and a corner light type, which represents lighting attached to the outside of a base with triangular sides attached directly to the ceiling surface.

18. The information provision method of claim 17, wherein the imaging shape classification includes a Fuji type, which represents lighting installed on the outside of a base with an inverted mountain-shaped side, a trough type, which represents lighting installed on the outside of a rectangular base, a reflector-shade type, which is lighting installed on the outside of a rectangular base and has a reflective shade, an open-bottom type, which represents lighting installed on the inside of a rectangular base, and a corner light type, which represents lighting installed on the outside of a base with triangular sides.

19. The information providing method according to claim 10, wherein the first category includes recessed base lights that are recessed and mounted in a ceiling surface.

20. The information provision method according to claim 19, wherein the second classification includes an open-bottom type, which represents lighting in which a lamp is attached to a fixture embedded in a rectangular recessed hole in the ceiling surface, a louvered type, which represents lighting in which a lamp is attached to a fixture embedded in a rectangular recessed hole in the ceiling surface and is equipped with a louver, and a paneled type, which represents lighting in which a lamp is attached to a fixture embedded in a rectangular recessed hole in the ceiling surface and is equipped with a panel.

21. The information provision method according to claim 20, wherein the imaging shape classification includes an open-bottom type representing a lighting fixture with a lamp attached to a fixture recessed in a recessed hole, a louvered type representing a lighting fixture with a lamp attached to a fixture recessed in a recessed hole and equipped with a louver, and a paneled type representing a lighting fixture with a lamp attached to a fixture recessed in a recessed hole and equipped with a panel.

22. The information providing method according to claim 10, wherein the first category includes downlights.

23. The information provision method according to claim 22, wherein the second classification includes: an open-bottom circular type, which represents lighting in which a round lamp is attached to a fixture recessed in a circular recessed hole in the ceiling surface; a panel-equipped circular type, which is lighting in which a round lamp is attached to a fixture recessed in a circular recessed hole in the ceiling surface and is equipped with a panel; an open-bottom square type, which is lighting in which a round lamp is attached to a fixture recessed in a square recessed hole in the ceiling surface; an open-bottom type for sloped ceilings, which represents lighting in which a round lamp is attached to a fixture recessed in a circular recessed hole in a sloped ceiling surface; and a multiple type, which represents lighting in which multiple round lamps are attached to circular recessed holes in the ceiling surface.

24. The information provision method according to claim 23, wherein the imaging shape classification includes: an open-bottom circular type representing a lighting fixture with a round lamp attached to a fixture recessed in a circular recessed hole; a panel-equipped circular type representing a lighting fixture with a round lamp attached to a fixture recessed in a circular recessed hole and equipped with a panel; an open-bottom square type representing a lighting fixture with a round lamp attached to a fixture recessed in a square recessed hole; and a multiple type representing a lighting fixture with multiple round lamps attached to a circular recessed hole.

25. The information providing method of claim 10, wherein the first category includes universal downlights.

26. The information provision method described in claim 25, wherein the second classification includes a circular swivel type, which represents lighting with a round movable lamp attached to a fixture embedded in a circular recessed hole in the ceiling surface, and a square swivel type, which represents lighting with a round movable lamp attached to a fixture embedded in a square recessed hole in the ceiling surface.

27. The information provision method according to claim 26, wherein the imaging shape classification includes a "circular swivel" representing a lighting fixture with a round movable lamp attached to a fixture recessed in a circular recessed hole, and a "square swivel" representing a lighting fixture with a round movable lamp attached to a fixture recessed in a square recessed hole.

28. The information providing method according to claim 10, wherein the database manages the second classification and the imaging shape classification in association with each other.

29. A construction site support system including a computer connected to a terminal device via a network and equipped with a database storing lighting fixture types in correspondence with a plurality of first classifications based on shape information used in a lighting fixture catalog and a plurality of second classifications that are subclassifications of the first classifications and that represent characterization of information related to visual shape, wherein the computer: acquires an image of an existing lighting fixture installed in a construction space; classifies the shape of the existing lighting fixture into one of a predetermined number of image shape classifications using a trained model that has learned the relationship between the imaged images of the plurality of lighting fixtures and the shapes of the plurality of lighting fixtures; selects, from the plurality of second classifications based on the database, a type of lighting fixture belonging to the second classification that corresponds to the shape of the existing lighting fixture classified into the image shape classification; and displays the selected type of lighting fixture on the terminal device as replacement candidates for the existing lighting fixture.

30. A terminal device in a construction site support system as described in claim 29, which obtains information about the selected type of lighting fixture from the construction site support system, and displays the selected type of lighting fixture on a display as a replacement candidate for the existing lighting fixture.

31. A control method for a terminal device connected to a construction site support system via a network and equipped with a database storing lighting fixture types corresponding to a plurality of first classifications based on shape information used in a lighting fixture catalog and a plurality of second classifications that are subclassifications of the first classifications and that convert visual shape information into text, the control method comprising the steps of: causing a computer of the terminal device to acquire an image of an existing lighting fixture installed in a construction space; transmitting the acquired image to the construction site support system; using a trained model that has learned the relationship between the imaged images of a plurality of lighting fixtures and the shapes of a plurality of lighting fixtures in the construction site support system, classifying the shape of the existing lighting fixture into one of a predetermined number of imaged shape classifications; receiving information indicating the imaged shape classification from the construction site support system; selecting a type of lighting fixture belonging to the second classification that corresponds to the shape of the existing lighting fixture classified into the imaged shape classification from the plurality of second classifications based on the database; and displaying the selected type of lighting fixture on the display of the terminal device as a replacement candidate for the existing lighting fixture.

32. A storage medium storing a program for executing the control method according to claim 31.

33. A program for executing the control method according to claim 31.

Images