JP7173664B2 - Solar cell module installation support device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a solar cell module installation support device that supports installation of solar cell modules on the roof of a building.

Patent Literature 1 describes a photovoltaic power generation system design support device for layout design of photovoltaic modules. This photovoltaic power generation system design support device creates an image of the roof outline from the dimensions of the installation target surface on which the solar cell module is to be installed on a roof made of slate, metal tile rods, roof tiles, or metal horizontal roofing. Then, a bird's-eye view of the roof is created from the image of the outline of the roof.

After that, in Patent Document 1, an installation target area for a solar cell module is set by reflecting an installation prohibited area such as a lighting window or a chimney in a bird's-eye view, and a solar cell module is arranged in the installation target area. A layout drawing of the solar cell modules is created.

Japanese Patent Application Laid-Open No. 2006-301699

Various roof materials such as ALC panels (lightweight cellular concrete panels) are used for roofs of buildings and the like. When a solar cell module is installed on a roof that uses ALC panels as a roofing material, columns are fixed on the ALC panel, and the solar cell modules are mounted on a frame spanning a plurality of columns. In addition, the arrangement of the solar cell modules greatly changes depending on the installation positions and the number of columns.

On the other hand, when the solar cell module receives a wind load, the strut receives a blowing load from the solar cell module. In addition, the ALC panel has a portion with low load resistance against blowing load. For this reason, in a roof using an ALC panel as a roof material, it is necessary to set the installation position of the struts for supporting the solar cell modules in consideration of the uplift load.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a solar cell module installation support device that enables proper installation of solar cell modules on the roof of a building.

A first aspect of a solar cell module installation support device for achieving the above object provides a building having a roof on which a solar cell module is installed. an acquisition unit that acquires building information including azimuth information; a layout diagram generation unit that generates a layout diagram in which the structural members are arranged on the installation target surface of the solar cell module of the roof based on the building information; With respect to a supporting member that is attached to the roof via the structural member and supports the solar cell module that is arranged on the roof, a region in which the supporting member cannot be installed on the structural member in the layout plan based on the attribute information. is set, and within the installation permitted area excluding the installation prohibited area, on the installation target surface based on the orientation information, the attribute information , and the arrangement conditions preset according to the load resistance of the support member an arrangement setting unit for setting an arrangement of the support members for installing the solar cell modules.

In the solar cell module installation support device of the first aspect, the solar cell module is installed on the roof of the building. A roof of a building is formed by arranging structural members, and a plurality of supporting members are attached to the roof via the structural members, and solar cell modules are supported by the supporting members.

The acquisition unit acquires building information including structural materials of the roof, attribute information of the structural materials, roof shape, and orientation information of the building. The layout drawing generation unit generates a layout drawing in which structural members are arranged on the installation target surface of the solar cell module on the roof based on the building information.

Here, for the support members, the arrangement setting unit sets an area where the support members cannot be installed on the structural members in the layout drawing based on the attribute information. In addition, the arrangement setting unit arranges the solar cell modules on the installation target surface based on the orientation information, the attribute information, and the arrangement condition set in advance according to the load resistance of the support member within the installation permitted area excluding the installation prohibited area. Sets the array of support members for installation.

Here, when the solar cell module is installed on the roof, based on the azimuth information, the light-receiving surface is oriented in the direction (azimuth) in which the largest possible amount of power generation can be obtained. In addition to this, the arrangement setting unit sets so that the columns are arranged in the installable area excluding the installable area determined based on the withstand load of the structural material. Accordingly, it is possible to prevent the support member from being attached to a portion of the structural material having a low load resistance.

Further, the arrangement setting unit arranges the support members under a preset arrangement condition so that the support members can withstand the blowing load received from the solar cell modules. As a result, the supporting members can be arranged effectively so that the structural members and the supporting members can withstand the blowing load received from the solar cell modules, and the solar cell modules can be appropriately installed on the roof of the building easily.

A second aspect of the solar cell module installation support device is the first aspect, wherein the structural material is a rectangular flat foamed concrete panel, and both ends in the longitudinal direction of the structural material are set in the non-installable area. ing.

The solar cell module installation support device of the second aspect is applied to support the placement of solar cell modules on a roof whose structure is made of foamed cellular concrete. At this time, both ends of the structural member in the longitudinal direction are set as installation prohibited areas of the supporting member. As a result, it is possible to suppress a decrease in the withstand load of the supporting member and the structural member due to the installation of the solar cell module, and to enable appropriate support of the solar cell module.

A third aspect of the solar cell module installation support device is, in the first or second aspect, wherein the solar cell modules are attached to support rails supported by the support members, and the array setting section comprises: The arrangement of the support members is set so that the total length of is maximized.

In the solar cell module installation support device of the third aspect, the solar cell module is attached to the support rail attached to the support member. At this time, the arrangement setting section sets the arrangement of the support members so that the total length of the support rail is maximized. Thereby, the solar cell module can be installed so as to increase the amount of power generation.

As described above, according to the solar cell module installation support device of the first aspect of the present invention, it is possible to appropriately install the solar cell module on the roof of the building in consideration of the load resistance, and to receive the load from the solar cell module. The advantage is that the support member can be arranged and attached to the structural member so as to withstand the uplift load.

In addition, according to the solar cell module installation support device of the second aspect, it is possible to suppress a decrease in the withstand load of the foamed cellular concrete panel, and it is possible to appropriately support the solar cell module.

Furthermore, according to the solar cell module installation support device of the third aspect, it is possible to obtain the effect that the solar cell module can be installed so as to increase the amount of power generation.

1 is a functional block diagram of a design support device according to this embodiment; FIG. 1 is a block diagram showing a schematic configuration of a design support device according to this embodiment; FIG. It is a sectional view showing a roof part of a building. 1 is a plan view of a roof of a building; FIG. (A) is a side view of the support metal fitting, and (B) is a plan view of the support metal fitting. (A) and (B) are layout diagrams of the main ALC panel, and (B) shows a state in which the installation prohibited area is set in (A). FIG. 4 is an arrangement diagram of ALC panels showing outlines of support positions between ALC panels of different sizes; (A) and (B) are layout diagrams each showing an outline of the arrangement of the struts. (A) and (B) are layout diagrams showing an outline of the layout of solar cell modules on each arrayed support.

An example of an embodiment of the present invention will be described in detail below with reference to the drawings.
In the present embodiment, a building in which a photovoltaic power generation system using solar cell modules (so-called solar cell panels) is used as power generation means is installed. When installing a solar cell module on a roof, a plurality of struts for supporting the solar cell module are arranged and attached to the roof. In the present embodiment, the installation design of the solar cell modules is supported by assisting the arrangement design of the pillars that support the solar cell modules.

In this embodiment, solar cell modules are installed on the roof of a building using ALC panels (lightweight cellular concrete panels) as roofing materials (structural materials). The target building may be a newly constructed building or an existing building whose roof is to be renovated. Buildings with refurbished roofs include buildings with refurbished roofs for new installation of photovoltaic systems.

First, an example of the structure of the roof of a building will be described. FIG. 3 shows a cross-sectional view of the main part of the roof part 62 of the building 60 according to the present embodiment, and FIG. 4 shows the main part of the roof part 62 in a plan view.

As shown in FIG. 3, the roof portion 62 is a flat roof (flat roof). As shown in FIGS. 3 and 4, the roof section 62 has a structure placed on a beam 64 made of H-shaped steel forming part of the ceiling of the top floor of the building 60 and an upper flange 64A of the beam 64. A plurality of ALC panels 66 as a material (roofing material), a heat insulating material 68 arranged on the ALC panel 66, and a waterproof sheet 70 arranged so as to cover the upper surface of the heat insulating material 68. ing. Note that the heat insulating material 68, the waterproof sheet 70, and the like are omitted in FIG. A known fixing method can be applied to fix the ALC panel 66 to the beams 64 or the like, and a description thereof will be omitted in this embodiment.

The building 60 uses an ALC panel 66 with a width of 500 mm. In addition, the ALC panel 66 is set in a plurality of types with a length dimension (longitudinal dimension) of 500 mm, 1000 mm, 1500 mm, or 2000 mm. The roof portion 62 may use (one type of) ALC panels 66 with the same length dimension, or may use (two or more types of) ALC panels 66 with different length dimensions.

An ALC panel 66 placed on the beam 64 is provided with a support bracket 72 that constitutes a support member. FIG. 5A shows the support metal fitting 72 in a side view, and FIG. 5B shows the support metal fitting 72 in a plan view.

As shown in FIGS. 5A and 5B, the support bracket 72 includes a rectangular flat base plate 74 and a columnar support 76 as a support member. The base plate 74 is formed with rising portions 74B at both ends in the width direction of a rectangular flat substrate 74A, and the rising portions 74B extend in the longitudinal direction of the substrate 74A. Also, an insertion hole 74C is formed in each of the four corners of the substrate 74A.

The column 76 has a cylindrical upper end (one end in the axial direction) closed by a lid portion 76A, and the lid portion 76A is welded and joined to the cylindrical upper end. The support 76 has its lower end (the end opposite to the lid portion 76A in the axial direction) joined to the upper surface of the substrate 74A of the base plate 74 by welding or the like. are superimposed.

In the base plate 74, the distance (center distance) ds between the insertion holes 74C in the longitudinal direction of the substrate 74A is substantially the same as the width dimension of the ALC panel 66. can be installed across the Thereby, the support 76 of the support metal fitting 72 is arranged at the boundary portion (boundary) between the two ALC panels 66 adjacent in the width direction.

A plug anchor 78 as an anchor member and a bolt 80 as a fastener are used to fix the base plate 74 to the ALC panel 66 . The plug anchor 78 has a male thread (not shown) formed on its outer peripheral surface, and a bolt insertion hole (not shown) for accommodating a bolt 80 is formed inside. It is

The strut fitting 72 is fixed to the ALC panel 66 by screwing the bolts 80 inserted into the insertion holes 74C of the base plate 74 into the respective plug anchors 78 fixed to the ALC panel 66 . The plug anchor 78 is fixed to the ALC panel 66 with its diameter expanded radially outward inside the ALC panel 66 by screwing the bolt 80 into the insertion hole, and the base plate 74 is fixed to the ALC panel 66 . The plug anchor 78 has a larger screw thread height dimension of the external thread on the outer peripheral surface compared to general ALC screws, and the plug anchor 78 can widen the contact surface with the ALC panel 66 . Thereby, the support bracket 72 is firmly fixed to the ALC panel 66 by using the plug anchor 78 .

As shown in FIG. 3 , a plurality of support fittings 72 are arranged vertically and horizontally on the roof section 62 (in the gable direction and girder direction of the roof section 62 ), and the supports 76 are arranged vertically and horizontally on the roof section 62 . Mounting frame 82 is attached to column 76. Mounting frame 82 is attached across a plurality of columns 76 arranged vertically and horizontally.

The pedestal 82 includes a metal lower rail 84 and an upper rail 86 each of which is elongated. In the pedestal 82, the upper rail 86 functions as a support rail. The lower rails 84 have a longitudinal direction (or a horizontal direction) of the roof portion 62, and are arranged across the columns 76 adjacent in the vertical direction (or a horizontal direction). or vertically). Each of the lower beams 84 is fixed on the support 76 by a mounting bracket (not shown).

In addition, the upper rail 86 is disposed across two or more lower rails 84 along a direction whose longitudinal direction intersects (perpendicularly) with the longitudinal direction of the lower rail 84 . are fixed to each of them by mounting brackets (not shown). As a result, the pedestal 82 has a lower crosspiece 84 and an upper crosspiece 86 arranged in a substantially grid pattern, and one or more of the pedestals 82 are attached to the roof portion 62 .

A solar cell module 90 is attached to the frame 82 , and the solar cell module 90 is installed on the roof portion 62 via the frame 82 . The solar cell module 90 is configured in a plate shape by integrating a plurality of solar cells. The solar cell module 90 is attached to the mount 82 while being inclined in one direction so that the light receiving surface faces the direction (azimuth) in which the maximum amount of power generation can be obtained. For this reason, the light-receiving surfaces of the roof portion 62 may be oriented in different directions (azimuths) among the plurality of sets of solar cell modules 90 .

The pedestal 82 is attached to the pillar 76 so that the longitudinal direction of the lower beam 84 makes an angle within 45° (-45° to 45°) with respect to the north-south direction. The angle of the lower rail 84 is "+" when the longitudinal direction of the lower rail 84 is inclined to the west with respect to the south direction, and "-" when the longitudinal direction of the lower rail 84 is inclined to the east. The angle indicates an angle on the acute angle side, and the minus sign is omitted.

In addition, two (three or more may be acceptable) upper rails 86A and 86B are used to support one set of solar cell modules 90 in the mount 82 to form a support rail, and the two upper rails 86 (86A , 86B) are positioned between two adjacent struts 76 and attached to the lower rails 84 .

In the solar cell module 90, the support position of the upper rail 86B arranged on the north side is higher than the support position of the upper rail 86A arranged on the south side. Then, the inclined light-receiving surface is directed to the south side, which is the direction in which the maximum amount of power generation can be obtained. Below, the tilt direction of the solar cell module 90 is indicated by an arrow S, and the direction (horizontal direction) intersecting the tilt direction S in the solar cell module 90 is indicated by an arrow H as a non-tilt direction. In addition, in FIG. 4, an example of the tilt direction S and the non-tilt direction H is shown.

On the other hand, in this embodiment, the design support device 10 is used as a solar cell module installation support device. When installing the solar cell module 90 on the roof portion 62, by setting (determining) the arrangement of the struts 76 (strut metal fittings 72) attached to the roof portion 62, the lower beams constituting the pedestal 82 on which the solar cell module 90 is mounted are arranged. The arrangement of 84 and upper rail 86 is determined, and the arrangement of solar cell modules 90 is determined.

From here, the design support device 10 according to the present embodiment assists the arrangement design of the solar cell modules 90 by assisting the arrangement design of the struts 76 . FIG. 1 shows a functional block diagram of the design support device 10, and FIG. 2 shows a schematic configuration (hardware configuration) of the design support device 10 in a block diagram.

As shown in FIG. 2, the design support device 10 includes a personal computer (PC) 12 . The personal computer 12 comprises a CPU 14, a ROM 16, a RAM 18, and an input/output port 20, which are interconnected via a bus 22 such as an address bus, data bus and control bus.

In the personal computer 12, along with input/output devices such as a display 24, a keyboard 26, and a mouse 28, an HDD (which may be a semiconductor memory) 30 as a storage device, a communication interface (communication I/F) 32 as a communication device, etc. are connected to the input/output port 20 . The personal computer 12 may be connected to a printout device (such as a printer, not shown) via the input/output port 20 or the communication I/F 32 .

Further, the personal computer 12 is connected to a scanner 34 as image acquisition means via the input/output port 20 or the communication I/F 32 . The personal computer 12 can acquire image data of these images from drawings (architectural drawings) and images (photographed images) via the scanner 34 . A card reader/writer (card R/W) 36 is connected to the input/output port 20 of the personal computer 12 . In the personal computer 12, a memory card 38A such as a flash memory (portable storage medium) in which a photographed image photographed by a camera 38 as an imaging means is recorded is attached to the card R/W 36, so that the photographed image and the like can be obtained. Image data can be acquired.

The personal computer 12 may be connected to a CAD system via the communication I/F 32 so that input/output of data created by the CAD system or the like may be possible. A disk drive may be connected to the input/output port 20 of the personal computer 12, and various data may be input via a disk as a portable recording medium attached to the disk drive.

In the personal computer 12, the CPU 14 reads programs stored in the ROM 16 and the HDD 30, and executes various processes while using the RAM 18 as a working memory. In the ROM 16 and HDD 30 of the personal computer 12, various programs (design support program ) is stored.

The personal computer 12 functions as the design support apparatus 10 by the CPU 14 reading and executing the design support program stored in the ROM 16 and HDD 30 . The program may be acquired via a network to which the communication I/F 32 is connected, or may be acquired via a memory card 38A or a USB memory as a semiconductor storage medium, a disk as a portable recording medium, or the like, and stored in the HDD 30. may be stored in

As shown in FIG. 1 , the design support device 10 is provided with an acquisition unit 40 , a storage unit 42 , a layout drawing creation unit 44 , a column arrangement setting unit 46 , an arrangement setting unit 48 and an output unit 50 . Further, the support column arrangement setting unit 46 of the design support device 10 includes an orientation specifying unit 52 , an installation area setting unit 54 , and a support column setting unit 56 .

In the design support device 10 , the storage unit 42 is implemented by the HDD 30 , and various data are stored in the storage unit 42 in advance, and various information (data) acquired by the acquisition unit 40 is stored. The storage unit 42 also presets and stores arrangement conditions (including arrangement prohibition conditions) for arranging the pillars 76 on the roof section 62 .

The acquisition unit 40 in the design support apparatus 10 is realized by the display 24, the keyboard 26, and the mouse 28, and information is obtained by operating the keyboard 26 and the mouse 28 based on a predetermined user interface (UI) displayed on the display 24. is entered. The acquisition unit 40 is realized by the input/output port 20 and the communication I/F 32, and is configured to receive data input via the memory card 38A attached to the card R/W 36 connected to the input/output port 20, and the communication I/F. Data obtained from the scanner 34 or the like connected to the /F 32 may be acquired. Note that the camera 38 may be connected via the communication I/F 32 (wireless communication or wired communication).

Here, the acquisition unit 40 acquires building information (data). In this embodiment, the building information includes information with which a plan view or development view of the roof section 62 on which the solar cell modules 90 are arranged can be created and information with which the arrangement of the ALC panels 66 of the roof section 62 can be specified. . For example, the building information includes CAD data of the building 60, a bird's eye view or a bird's eye image (bird's eye view or bird's eye image) of the roof 62 of the building 60, and a plan view of the roof 62 such as a roof plan of the roof 62 of the building 60. (exploded view) and other information is included.

In addition, the building information includes position information that enables specification of the installation position (latitude, longitude, altitude, etc.) of the building 60, and direction information that enables specification of the direction (orientation) of the building 60, and the like.

Further, the building information includes structural materials of the roof section 62 (roof materials such as the ALC panel 66) and attribute information of the structural materials. The attribute information of the structural material includes information specifying the installation prohibited area set as the installation prohibited portion of the column 76, which is set in consideration of the load bearing capacity of the structural material. Such structural materials of the roof section 62 and attribute information of the structural materials may be input in advance and stored in the storage section 42 . As a result, in the storage unit 42, the attribute information for each of the plurality of types of structural materials applied to the roof part 62 is stored as the arrangement prohibition condition among the arrangement conditions that define the attachment and arrangement of the pillars 76 to the roof part 62. remembered.

The layout drawing creation unit 44 creates a layout drawing of the ALC panels 66 on the roof 62 based on the building information about the building 60 stored in the storage unit 42 . Further, the column arrangement setting unit 46 sets the arrangement (arrangement pattern) of the columns 76 (column fittings 72) that support the pedestals 82 of the solar cell modules 90 on the layout drawing.

At this time, in the pillar array setting unit 46, the direction specifying unit 52 sets (reflects) the direction (for example, the north direction) on the layout map based on the building information. The installation area setting unit 54 selects a low-strength area (preset area where it is determined that strength cannot be obtained) is set as an installation prohibited area for the support fitting 72 (support 76). As a result, the installation area setting unit 54 extracts the installation prohibited area, and sets the area excluding the installation prohibited area as the installation possible area on the layout drawing.

The strut arrangement determination unit 56 sets the arrangement pattern of the strut metal fittings 72 based on the orientation and arrangement conditions. When a plurality of arrangement patterns are set, the pillar arrangement determination unit 56 selects an arrangement pattern based on preset selection conditions, and determines the arrangement pattern of the pillars 76 with respect to the roof section 62 . Thereby, the column arrangement setting unit 46 sets the position of each of the plurality of columns 76 on the layout diagram of the roof section 62 .

The arrangement setting unit 48 sets the arrangement of each of the lower beams 84 and the upper beams 86 (86A, 86B) of the mount 82 based on the set (determined) arrangement pattern of the struts 76, and the arrangement of the solar cell modules 90. Set a pattern (array pattern). The output unit 50 outputs information that can identify the arrangement pattern of the support columns 76 , attachment of the mounts 82 to the support supports 76 , and the arrangement of the solar cell modules 90 on the mounts 82 (for example, installation diagrams of each). This output unit 50 can be implemented by the display 24 . The output unit 50 can also be realized by a print output device such as a printer connected via the input/output port 20 or the communication I/F 32, and can also be realized by various information processing terminals connected via the communication I/F 32. Realized.

Next, the support processing of the design support device 10 will be described with reference to FIGS. 6 to 9 as the operation of the present embodiment.
The layout drawing creation unit 44 of the design support device 10 creates a layout drawing of the ALC panels 66 on the roof 62 based on the building information of the building 60 acquired by the acquisition unit 40 . FIG. 6A shows an example of the layout 100. FIG. It should be noted that each figure shown below shows the arrangement of the ALC panel 66 on a part of the roof portion 62 .

In this embodiment, the roof portion 62 is a flat roof, and the layout drawing creation portion 44 creates a bird's-eye view (plan view) of the roof portion 62, and arranges and arranges the ALC panels 66 on the created bird's-eye view. A diagram (planar layout diagram) 100 is created. In addition, if the roof is a sloped roof or a mixed roof with a sloped roof and a flat roof, etc., create a development plan by cutting each part that is slanted or non-sloped (flat) in the same direction, and on the developed plan A layout drawing may be created by arranging the structural members (ALC panels 66) in the same direction.

When CAD data is acquired as architectural information, such a layout drawing 100 is created by creating (extracting) a plan view of the roof section 62 from the CAD data and arranging the ALC panels 66 . If there is a design drawing (architectural drawing) of the roof section 62 of the building 60, building information is input based on the design drawing, and the layout drawing creation unit 44 generates A plan view of the roof section 62 is created, and the ALC panels 66 are arranged on the plan view.

On the other hand, if the building 60 already exists and there are no CAD data, design drawings, etc., the design support device 10 photographs the roof portion 62 of the building 60 (the building 60 including the roof portion 62) as the building information of the building 60. A bird's-eye view image (captured image) can be used. In this case, as the bird's-eye view image acquired by the acquisition unit 40, captured images of the entire circumference of the roof part 62 captured from a plurality of directions (preferably a plurality of directions in each of the four directions and the upper direction) are used, and the captured images are video images. There may be. In addition to the bird's-eye view image of the building 60, the building information includes information that can specify the position (latitude, longitude, altitude, etc.) of the building 60 and the shooting date and time.

A radio-controlled unmanned aerial vehicle (for example, a multirotor helicopter or the like) equipped with a camera 38 can be used to capture such a bird's-eye view image. The building 60 may be photographed while the personal computer 12 specifies the photographing position (the direction and height with respect to the building 60) by wirelessly controlling the unmanned airplane.

At this time, it is more preferable that the personal computer 12 acquires position information and shooting date/time information of the radio-controlled unmanned airplane. This facilitates creation of the layout 100 of the ALC panels 66 on the roof portion 62 of the existing building 60, and the direction information of the building 60 can be obtained from each of the photographing position information, date and time information, and photographed image (bird's-eye view image). can be obtained. That is, the direction and height of the sun with respect to the building can be specified from the position information and the date and time information, and the direction and length of the shadow on the bird's-eye view image can be obtained by image processing on the bird's-eye view image. information can be obtained.

The bird's-eye image that has been printed is read by the scanner 34 and is acquired by the acquiring unit 40 as image data. Moreover, when the bird's-eye view image is image data recorded in the memory card 38A, the image data is read from the memory card 38A and acquired by the acquisition unit 40 by attaching the memory card 38A to the card R/W 36 .

The layout drawing creation unit 44 performs image analysis processing such as image synthesis processing and image extraction processing on a plurality of bird's-eye images (image data) to generate three-dimensional image data of the roof section 62. A plan view of the roof portion 62 is created from the three-dimensional image data. In addition, the layout drawing creation unit 44 drops the ALC panel 66 as a structural member onto the plan view based on a plurality of bird's eye images. Accordingly, the layout drawing 100 can be created from a plurality of bird's-eye images of the roof portion 62 of the building 60 .

Next, the orientation identifying unit 52 sets information for identifying the orientation in the layout drawing 100 based on the orientation information included in the building information. As the information specifying the direction, for example, information indicating the south direction or the north direction on the layout drawing 100 is applied. This makes it possible to specify the north-south direction in the layout drawing 100 and the south side of the building 60 (roof section 62).

The installation area setting unit 54 sets an installation prohibited area 102 for the support bracket 72 on the layout drawing 100 based on the attribute information of the structural material. FIG. 6B shows a layout drawing 100A in which installation prohibited areas 102 are set.

In this embodiment, the support metal fittings 72 are not installed within a predetermined range (1/4 range of the length L) of both ends in the longitudinal direction of the ALC panel 66 (arrangement prohibition condition), and this information is Included in attribute information. From here, as shown in FIG. 6(B), an installation prohibited area 102 is set for each of the ALC panels 66 .

In addition, in this embodiment, the arrangement condition includes that the support metal fittings 72 are installed across two ALC panels 66 adjacent in the width direction. From here, for the ALC panel 66 (ALC panel 66A in FIG. 6B) at the peripheral edge (eaves side portion) of the roof 62, a portion that is not adjacent to another ALC panel 66 in the width direction is installed. It becomes the impossible area 104 . The installation prohibited area 104 may be included in the installation prohibited area 102 in the layout drawing 100A.

As a result, in the installation area setting unit 54, an area excluding the installation prohibited area 102 (or the installation prohibited area 102 including the installation prohibited area 104) is set as the installation permitted area 106 of the support bracket 72 (support 76), and the installation Diagram 100A is created (updated).

After that, the column arrangement determination unit 56 sets an arrangement pattern in which a plurality of column fittings 72 are arranged within the installation permission area 106 based on the orientation information and the arrangement condition. The arrangement conditions are set in consideration of the withstand load (withstand load of the struts 76 and the ALC panels 66 supporting the struts 76 ) against the blowing load received by the struts 76 from the solar cell modules 90 . In addition to the above, the following conditions (a) to (g) are set as arrangement conditions.

(a) When the angle θ of the width direction W of the ALC panel with respect to the south direction is within 45° (−45°<θ<45°), the tilt direction S is the width direction of the ALC panel 66 .
(b) When the angle θ of the width direction W of the ALC panel with respect to the south direction is 45° or more (θ≦−45° or 45°≦θ), the tilt direction S is the longitudinal direction of the ALC panel 66 .
(c) Let the longitudinal direction of the lower beam 84 be the tilting direction S, and let the longitudinal direction of the upper beam 86 be the non-tilting direction H.
(d) At least two struts 76 are continuous in the direction of inclination S.
(e) The interval (center interval) Da (see FIG. 4) of the support columns 76 along the tilt direction S is set to 1000 mm.
(f) The interval (center interval) Db (see FIG. 4) of the struts 76 along the non-tilt direction H is set to 1000 mm or 1500 mm. However, the distance between the continuous struts 76 is 1000 mm after 1500 mm.
(g) If the position of the struts 76 arranged at intervals Da or Db is not at the longitudinal center position of the ALC panel 66, the non-installable area 102 adjacent to the center position of the struts 76 in each ALC panel 66 The ratio (d/L) of the distance d from the edge to the length L of the ALC panel 66 is made equal.

The pillar arrangement determination unit 56 arranges the pillars 76 so as to satisfy at least each of the arrangement conditions (a) to (g) within the installation permitted area 106 . Note that these arrangement conditions are based on the case where one of the longitudinal direction and the width direction of the ALC panel 66 is along the gable side direction of the building 60 as an example.

Here, arrangement condition (g) will be described with reference to FIG. FIG. 7 shows an example in which the struts 76 are arranged so as to be continuous with the ALC panel 66B with a length L1 of 2000 mm and the ALC panel 66C with a length L2 of 1000 mm. In FIG. 7, 1500 mm is applied as the interval Db between the two struts 76 corresponding to the non-tilting direction.

A distance d1 is set between the center of the support 76 at the boundary between the two ALC panels 66B and the boundary of the non-installable area 102 on the ALC panel 66 adjacent to the support 76 (close to the support 76). Also, the distance d2 between the center of the support 76 at the boundary between the two ALC panels 66C and the boundary of the non-installable area 102 on the ALC panel 66C adjacent to the support 76 (close to the support 76) is set. Next, the distance d1 and the distance d2 are calculated so that the position of each support 76 satisfies d1/L1≈d2/L2 (d1/L1=d2/L2 may also be satisfied).

As a result, in one of the ALC panels 66B and 66C, when the support 76 is arranged at the center position in the longitudinal direction, the strength of the other of the ALC panels 66B and 66C may be reduced. By arranging the ALC panels 66B and 66C, unevenness in strength can be suppressed, and reduction in strength can be suppressed as a whole.

As a result, for example, in the roof portion 62 of the building 60, in a portion where the longitudinal direction of the ALC panel 66 is along the gable side direction and the angle of the gable side direction with respect to the north-south direction is less than 45°, the gable side direction at that portion is inclined. direction S. The struts 76 are arranged at intervals Da in the gable direction along the longitudinal direction of the ALC panel 66 and at intervals Db along the girder direction along the width direction of the ALC panel 66 .

In addition, in the roof portion 62 of the building 60, in the portion where the longitudinal direction of the ALC panel 66 is along the gable side direction and the angle of the gable side direction with respect to the north-south direction is 45° or more, the girder direction at that portion is the inclination direction S. be. The struts 76 are arranged with an interval Da in the girder direction along the width direction of the ALC panel 66 and with an interval Db in the gable direction along the longitudinal direction of the ALC panel 66 .

Here, FIGS. 8A and 8B show the arrangement of the struts 76 satisfying the arrangement conditions (a) to (g). In FIGS. 8A and 8B, the direction along the width direction of the ALC panel 66 is indicated by broken lines. In FIG. 8A, the width direction angle θ of the ALC panel 66 with respect to the south direction is 45° or more, and in FIG. 8B, the width direction angle θ of the ALC panel 66 with respect to the south direction is 45°. considered to be less than

As shown in FIG. 8A, when the angle θ in the width direction of the ALC panel 66 with respect to the south direction is 45° or more, the support columns 76 are arranged at intervals Da in the longitudinal direction of the ALC panel 66, and the ALC panel 66 are arranged at intervals Db in the width direction. As the interval Db, 1000 mm (=Db1) or 1500 mm (=Db2) can be applied. First, the array pattern of the struts 76 indicated by the solid line is obtained as the interval Db2. Also, since 1000 mm (=Db1) can be applied as the distance Db, the position of the second strut 76 can be the position indicated by the two-dot chain line, which is the distance Db1. From here, a plurality of patterns are set as the arrangement pattern of the struts 76 .

Further, as shown in FIG. 8B, when the angle θ in the width direction of the ALC panel 66 with respect to the south direction is less than 45°, the support columns 76 are arranged at intervals Da in the width direction of the ALC panel 66, They are arranged at intervals Db in the longitudinal direction of the ALC panel 66 . As the interval Db, an interval Db2 of 1500 mm can be applied, and the arrangement pattern of the struts 76 indicated by the solid line is obtained. However, since the interval Db of the next support 76 is the interval Db1 of 1000 mm, the support 76 enters the installation prohibited area 102 (illustration of the support 76 in this case is omitted).

Here, by shifting the position of the support 76 from the center position in the longitudinal direction of the ALC panel 66, the support 76 can be arranged at the position where the distance Db1 is next to the distance Db2 (see the two-dot chain line). From here, a plurality of patterns are set as the arrangement pattern of the struts 76 .

On the other hand, the support column arrangement determination unit 56 sets the arrangement pattern of the support columns 76 so that the support columns 76 are arranged over the entire surface of the roof portion 62 (the entire installation permitted area 106). At this time, when a plurality of arrangement patterns of the pillars 76 are set, the pillar arrangement determination unit 56 determines one arrangement pattern based on preset selection conditions, and the determined arrangement pattern is applied to the roof of the building 60. The arrangement pattern of the struts 76 when arranging the solar cell modules 90 in the portion 62 is set. When setting the arrangement pattern of the support columns 76 , it is preferable that the solar cell modules 90 are arranged closer to the north side of the roof section 62 .

The selection conditions include an arrangement pattern that minimizes the number of struts 76 and an arrangement pattern that maximizes the total length of the upper rails 86 that serve as support rails. When calculating the total length of the upper crosspiece 86, the two upper crosspieces 86A and 86B may be regarded as one, or the lengths of the upper crosspieces 86A and 86B may be combined. By increasing the length of the upper beam 86, the number of solar cell modules 90 can be increased (the area of the light receiving surface can be increased), and the amount of power generated can be increased. In addition, by minimizing the number of pillars 76, it is possible to suppress the installation cost of the solar cell module 90 and spread the load by widening the intervals between the pillars 76. FIG.

The strut arrangement determining unit 56 selects an arrangement pattern that satisfies at least one (preferably both) of the minimum number of struts 76 and the longest total length of the upper crosspieces 86 to determine the arrangement pattern of the struts 76 .

9(A) and 9(B) show an outline of the installation of the solar cell modules based on the arrangement pattern of the struts 76. FIG. 9A shows a case where the angle θ of the width direction of the ALC panel 66 with respect to the north-south direction is 45° or more (corresponding to FIG. 8A), and FIG. The angle θ of the width direction of the panel 66 with respect to the north-south direction is less than 45° (corresponding to FIG. 8B).

As shown in FIG. 9A, in the roof portion 62, at a portion where the angle θ of the width direction of the ALC panel 66 with respect to the north-south direction is 45° or more, the lower rail straddles the support 76 along the longitudinal direction of the ALC panel 66. 84 is attached. The upper rails 86A and 86B are attached to the lower rail 84 with their longitudinal directions extending along the width direction of the ALC panel 66, and the solar cell modules 90 are attached to the upper rails 86A and 86B. At this time, the light-receiving surface of the ALC panel 66 faces south by setting the upper crosspiece 86A to the south side.

Further, as shown in FIG. 9B, in a portion of the roof portion 62 where the angle θ of the width direction of the ALC panel 66 with respect to the north-south direction is less than 45°, A lower rail 84 is attached. The upper rails 86A and 86B are attached to the lower rail 84 with their longitudinal directions aligned with the longitudinal direction of the ALC panel 66, and the solar cell modules 90 are attached to the upper rails 86A and 86B. At this time, the light-receiving surface of the ALC panel 66 faces south by setting the upper crosspiece 86A to the south side.

In this manner, the design support device 10 can easily set the placement of the pillars 76 based on the building information, thereby facilitating the layout design of the solar cell modules 90 . At this time, the support column arrangement determination unit 56 sets the support columns 76 to be arranged in the installation permitted area 106 excluding the installation prohibited area 102 set in the ALC panel 66, so that the load capacity of the ALC panel 66 is reduced. can be suppressed.

In addition, the column arrangement determination unit 56 arranges the columns 76 based on preset arrangement conditions. Therefore, it is possible to prevent the arrangement position of the post from overlapping the installation prohibited area 102 . As a result, it is possible to effectively suppress a decrease in the withstand load of the ALC panel 66, and it is possible to more appropriately support the struts 76 on which the solar cell module 90 receives the wind load and the uplift load.

In addition, since the non-installable area 102 includes predetermined areas at both longitudinal ends of the ALC panel 66 where the withstand load (strength) is likely to decrease, the load of the pillars 76 attached to the ALC panel 66 is reduced. You can suppress the decline.

In addition, since the support 76 is arranged across two ALC panels 66 adjacent in the width direction, the load received by the ALC panels 66 can be distributed and the support 76 can be reliably supported. In addition, since two or more struts 76 cannot be attached to one ALC panel 66, the load on one ALC panel 66 can be suppressed, and the struts 76 can be reliably supported.

Furthermore, the column arrangement determination unit 56 can set an arrangement pattern that minimizes the number of columns 76 when arranging the columns 76 over the entire roof portion 62 . As a result, the installation cost of the solar cell module 90 can be suppressed, and the uplift load that the roof portion 62 receives from the solar cell module 90 can be dispersed.

In addition, the strut arrangement determining unit 56 can set the arrangement pattern of the struts 76 so that the total length of the upper rails 86 that serve as the support rails is the longest. As a result, the light-receiving area of the solar cell module 90 installed on the roof portion 62 can be widened, and the power generation amount can be increased, so that the power generation efficiency in the building 60 can be improved.

In the embodiment described above, the arrangement of the support columns 76 is set based on the arrangement of the ALC panels 66, the installation permitted area, the azimuth information, and the like. However, the arrangement of the pillars is set so that the number of solar cell modules (power generation) is maximized, and the ALC panels are arranged so that the arrangement positions of the pillars are within the arrangement permitted area according to the arrangement of the pillars. may be set. As a result, it is possible to improve the installation effect of the solar cell module in a newly constructed building or a building whose roof is refurbished with ALC panels.

In this embodiment, the solar cell module 90 is arranged in the installation prohibited area of the support 76 by arranging the support 76 so as to exclude the installation prohibited area set in the ALC panel 66 . However, when a lighting window or the like is installed on the roof, there may be an area where the solar cell module 90 cannot be arranged. In this case, a predetermined area including the area where the solar cell module cannot be installed may be set as the installation prohibited area of the supporting member. This makes it possible to restrict the placement of the support member so that the solar cell module is not placed in a region where the solar cell module cannot be placed (is not desired to be placed).

Furthermore, in the present embodiment described above, the roof portion 62 using the ALC panel 66 was described as an example. However, the structural material of the roof is not limited to the ALC panel 66, and various roof materials can be applied. At this time, the installation prohibited area is set based on the load bearing capacity of the structural members, and the installation prohibited area for the supporting members on the roof where the structural members are arranged is set. A support member may be attached to the material.

10 Design support device (solar cell module installation support device)
40 acquisition unit 42 storage unit 44 layout drawing creation unit (layout drawing generation unit)
46 strut arrangement setting part (arrangement setting part)
52 Orientation specifying part (arrangement setting part)
54 Installation area setting part (arrangement setting part)
56 strut arrangement determination unit (arrangement setting unit)
60 Building 62 Roof (roof)
66 ALC panel (structural material, foam cellular concrete panel)
72 Support fitting 76 Support 84 Lower crosspiece 86 (86A, 86B) Upper crosspiece (support rail)
90 Solar cell modules 100, 100A Layout 102 (104) Installation prohibited area 106 Installation permitted area

Claims (3)

an acquisition unit that acquires building information including structural materials of the roof, attribute information of the structural materials, roof shape, and orientation information of the building for a building in which a solar cell module is arranged on the roof;
a layout drawing generation unit that generates a layout drawing in which the structural members are arranged on the installation target surface of the solar cell module of the roof based on the building information;
With respect to a plurality of supporting members attached to the roof through the structural members and supporting the solar cell modules arranged on the roof, installation of the supporting members on the structural members in the layout drawing based on the attribute information. A non-installable area is set, and the installation target is set based on the orientation information, the attribute information , and an arrangement condition preset according to the load bearing capacity of the support member within the installation-permitted area excluding the installation-prohibited area. an arrangement setting unit for setting the arrangement of the support members for installing the solar cell modules on the surface;
A solar cell module installation support device comprising: 2. The solar cell module installation support device according to claim 1, wherein the structural member is a rectangular flat foamed concrete panel, and both longitudinal ends of the structural member are set in the non-installable area. The solar cell module is attached to a support rail supported by the support member,
3. The solar cell module installation support device according to claim 1, wherein the arrangement setting unit sets the arrangement of the support members so that the total length of the support rails is maximized.

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