Design support system, design support method, and program

Abstract

To appropriately allocate piping members to a piping structure of a design drawing.SOLUTION: A design support system is configured so as to: detect a branch part of an elbows-combined form on a tee branch pipe side in a piping structure of a design drawing; acquire a bore diameter pattern composed of the bore diameter of a tee main pipe and the bore diameter of an elbow in the detected branch part from the design drawing; store a reference table for storing dimensions between the tee and the elbow determined in accordance with the bore diameter pattern being a combination of the bore diameter of the tee main pipe and the bore diameter of the elbow of a piping unit obtained by combining the elbow of a prescribed standard with the tee branch pipe side of a prescribed standard; and perform conversion processing for converting the dimensions between the tee and the elbow of the branch part in the design drawing into dimensions between a tee and an elbow stored in accordance with the same bore diameter pattern as the one acquired from the design drawing.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a design support system, a design support method, and a program. [Background technology]

[0002] BACKGROUND ART There is known a configuration of a design device that is capable of changing the layout of materials and equipment in CAD data that indicates the design contents of a building (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-077200 Summary of the Invention [Problem to be solved by the invention]

[0004] In some cases, a process (piping component allocation process) for allocating piping components whose dimensions are restricted by standards or other factors to branching locations where branches occur in the piping structure shown in the design drawings is required. An object of the present invention is to enable proper allocation of piping members to a piping structure in a design drawing. [Means for solving the problem]

[0005] One aspect of the present invention that solves the above-mentioned problems is a design support system that includes a detection unit that detects a branching portion in a piping structure shown in a design drawing, where an elbow is combined with a branch pipe side of a tee; a diameter pattern acquisition unit that acquires from the design drawing a diameter pattern based on the diameter of the tee main pipe and the diameter of the elbow at the branching portion detected by the detection unit; a reference table storage unit that stores a reference table that stores tee-elbow dimensions that are determined corresponding to the diameter pattern, which is a combination of the diameter of the tee main pipe and the diameter of the elbow of a piping unit that combines an elbow of a specified standard with the branch pipe side of a tee of a specified standard; and a conversion unit that performs a conversion process to convert the tee-elbow dimensions of the branching portion in the design drawing into the tee-elbow dimensions stored in the reference table that correspond to the same diameter pattern acquired by the diameter pattern acquisition unit.

[0006] Another aspect of the present invention is a design support method in a design support system, the design support method including: a detection step of detecting a branch portion in a piping structure shown in a design drawing, in which an elbow is combined with a branch pipe side of a tee; a diameter pattern acquisition step of acquiring from the design drawing a diameter pattern based on the diameter of the tee main pipe and the diameter of the elbow at the branch portion detected in the detection step; and a conversion step of performing a conversion process of converting the tee-elbow dimension of the branch portion in the design drawing into a tee-elbow dimension stored corresponding to the same diameter pattern as acquired in the diameter pattern acquisition step in a reference table stored in a lookup table memory unit that stores tee-elbow dimensions defined corresponding to diameter patterns that are combinations of the diameter of the tee main pipe and the diameter of the elbow of a piping unit in which an elbow of a specified standard is combined with the branch pipe side of a tee of a specified standard.

[0007] Another aspect of the present invention is a program that causes a computer provided in a design support system to function as a detection unit that detects a branch point in a piping structure shown in a design drawing where an elbow is combined with a branch pipe side of a tee, a diameter pattern acquisition unit that acquires from the design drawing a diameter pattern based on the diameter of the tee main pipe and the diameter of the elbow at the branch point detected by the detection unit, and a conversion unit that performs a conversion process to convert the tee-elbow dimension of the branch point in the design drawing into a tee-elbow dimension stored corresponding to the same diameter pattern as acquired by the diameter pattern acquisition unit in a reference table that is stored in a reference table memory unit and stores tee-elbow dimensions defined corresponding to diameter patterns that are combinations of the diameter of the tee main pipe and the diameter of the elbow of a piping unit that combines an elbow of a specified standard with the branch pipe side of a tee of a specified standard. [Effects of the Invention]

[0008] According to the present invention, it is possible to obtain an effect that piping members can be appropriately assigned to the piping structure of the design drawing. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram illustrating an example of the configuration of a design support apparatus according to an embodiment of the present invention. [Figure 2] FIG. 10 is a diagram illustrating an example of a reference table according to the embodiment. [Figure 3] 1A and 1B are diagrams showing an example of a short-pipe type resin piping unit according to the present embodiment. [Figure 4] 1A and 1B are diagrams showing an example of a long-pipe type resin piping unit according to an embodiment of the present invention; [Figure 5] 10 is a flowchart showing an example of a processing procedure executed by the design support device according to the present embodiment in response to allocation of a resin piping unit UN in a piping member allocation process. [Figure 6] 10A and 10B are diagrams illustrating a specific example of allocation of resin piping units according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] 1 shows an example of the configuration of a design support device 100 that corresponds to the design support device system of this embodiment. The design support device 100 of this embodiment executes a piping component allocation process. First, an overview of the piping member allocation process will be described. When designing a building, blueprints are created. The blueprints created include design details of the piping structure corresponding to the drainage and water supply of the building. The format of blueprints supported by the design support device 100 of this embodiment is not particularly limited, but may be, for example, a format in which the building to be designed is three-dimensionally modeled using BIM (Building Information Modeling) technology. The design support device 100 of this embodiment may be capable of creating blueprints by installing, for example, a blueprint creation application. The design of a piping structure in a design drawing is created on the assumption that the piping materials will be steel pipes, for example. However, when constructing the piping on-site, plastic piping materials may be used instead of steel pipes. In this case, it becomes necessary to replace the product numbers, etc. of the piping materials that make up the piping structure in the design drawing from steel pipes to plastic ones. In this way, replacing the piping materials that make up the piping structure in the design drawing from steel pipes with product numbers is piping material allocation. The piping material allocation process is a process performed by the design support device 100 in accordance with the piping material allocation.

[0011] Furthermore, in the case of steel pipes, the length of the piping components can be adjusted by, for example, cutting during construction. Therefore, the length of each part in the piping structure designed in the design drawings is set at the discretion of the designer. On the other hand, when constructing piping on-site, plastic piping components are sometimes used instead of steel pipes. Plastic piping components are manufactured by resin molding. For these reasons, the dimensions of plastic piping components are determined according to pre-set standards for molding, structure, and other factors, and some plastic piping components have limitations on their ability to be cut to any desired length during construction. For this reason, some plastic piping components must be used at their pre-set dimensions during construction. For example, even when a plastic piping unit is constructed by combining specific piping components, including a tee (a piping component having a main pipe and a branch pipe joining the main pipe) and an elbow (a piping component with a 90-degree bend in the flow path), corresponding to a branch point in the piping structure (branch point), the dimensions of the piping components used are fixed, and they cannot be shortened below a minimum dimension. This limits the dimensional changes. Therefore, when allocating piping components, it is required to allocate a plastic piping unit having dimensions that are most suitable for the dimensions of the branching portion designed to correspond to the steel pipe in the design drawing. The design support device 100 of this embodiment is configured to be able to execute the allocation of plastic piping units as described above in the piping component allocation process.

[0012] 1 includes a user interface unit 101, a control unit 102, and a storage unit 103. The functions of the design support device 100 corresponding to the configuration shown in the figure are realized by a computer serving as hardware corresponding to the design support device 100 executing a program.

[0013] The user interface unit 101 includes input devices such as a mouse and a keyboard, a display device, and an output device such as an audio output device, and is a part that realizes the exchange of information between the user and the design support device 100.

[0014] The control unit 102 executes various controls in the design support device 100. The control unit 102 includes a detection unit 121, a diameter pattern acquisition unit 122, and a conversion unit 123 as functional units related to the allocation of resin piping units.

[0015] The detection unit 121 detects branch points from the piping structure in the design drawing in accordance with the allocation of the resin piping units.

[0016] The diameter pattern acquisition unit 122 acquires the diameter pattern set in the design drawing for the branching portion detected by the detection unit 121. A branching portion is a portion in a piping structure where a branch pipe branches off from a main pipe. The diameter pattern acquired by the diameter pattern acquisition unit 122 is a combination of the diameter of the main pipe (main tee pipe) in the tee placed at the branching portion and the diameter of the elbow connected to the branch pipe side of the tee.

[0017] Specifically, the conversion unit 123 performs a process (conversion process) to convert the tee-to-elbow dimension (the dimension corresponding to the tee to the elbow) of the branching section designed on the assumption of a steel pipe in the design drawing into the tee-to-elbow dimension of the plastic piping unit as an allocation of the plastic piping unit.

[0018] The storage unit 103 stores information corresponding to the design support device 100. The storage unit 103 includes a piping component master storage unit 131, a reference table storage unit 132, and a design drawing storage unit 133.

[0019] The piping component master storage unit 131 stores information indicating the dimensional specifications according to the standards of each resin piping component to be assigned to a design drawing. The piping component master storage unit 131 may also include information indicating the dimensional specifications of a piping unit (resin piping unit) configured with tee and elbows of a predetermined standard.

[0020] The reference table storage unit 132 stores a reference table. The reference table is information used when the conversion unit 123 performs conversion processing. The reference table indicates dimensions according to the specifications of each resin piping unit.

[0021] The design drawing storage unit 133 stores design drawing data. The design drawing storage unit 133 may store design drawing data acquired via a data interface or communication over a network. Alternatively, if an application having a design drawing creation function is installed in the design support device 100 and the design support device 100 itself has a design drawing creation function, the design drawing storage unit 133 may store design drawing data created by the design support device 100.

[0022] 2 shows an example of a reference table stored in the reference table storage unit 132. The reference table stores a short dimension (an example of a first dimension) and a long dimension (an example of a second dimension) corresponding to each diameter pattern of a resin piping unit. The specifications of a plastic piping unit are determined by the combination pattern of the diameter of the tee main pipe and the diameter of the elbow (end), shown as the diameter pattern, and the dimension between the tee and elbow.For each diameter pattern of a plastic piping unit, two dimensions are defined as the dimension between the tee main pipe and the elbow (tee and elbow dimension): tee and elbow dimension m1 (an example of the first dimension) and tee and elbow dimension m2. In other words, the plastic piping unit of this embodiment has two types of specifications for one diameter pattern: a short pipe type with a tee-to-elbow dimension m1 and a long pipe type with a tee-to-elbow dimension m2.

[0023] The short-pipe type plastic piping unit UN-S and the long-pipe type plastic piping unit UN-L will be described with reference to Figures 3 and 4. In the following description, when there is no particular distinction between the plastic piping unit UN-S and the plastic piping unit UN-L, they will be referred to as the plastic piping unit UN.

[0024] Figure 3 shows a short-pipe type plastic piping unit UN-S that corresponds to a certain diameter pattern. The diameter pattern in the specifications of the plastic piping unit UN is determined by the combination (T × L) of the diameter T of the main pipe in the tee TE and the diameter L of the elbow EB. The short-pipe type plastic piping unit UN-S is composed of a combination of piping components: tee TE (including tee branch pipe TEb), elbow EB, straight pipe ST2, and joint male thread JT, as shown in the figure. The above-mentioned tee TE (including the tee branch pipe TEb), elbow EB, straight pipe ST2, and joint male thread JT each have specific dimensions determined according to the bore pattern. In this way, the dimensions of each of the piping components that make up the short-pipe type plastic piping unit UN-S are fixed. Therefore, a single dimension is also determined for the tee-elbow distance m1 of the plastic piping unit UN-S.

[0025] Figure 4 shows the long-pipe type plastic piping unit UN-L, which has the same bore pattern as the plastic piping unit UN-S in Figure 3. The long-pipe type plastic piping unit UN-L is composed of a combination of piping components: tee TE (including tee branch pipe TEb), socket SK, straight pipe ST12, elbow EB, straight pipe ST13, and joint male thread JT, as shown in the figure. In the long-pipe type plastic piping unit UN-L, the straight pipe ST12 between the tee TE and elbow EB can be replaced with a longer one. For this reason, there is no upper limit to the length of the tee-elbow dimension m2 (long dimension) of the long-pipe type plastic piping unit UN-L. However, the length of the socket SK is fixed, and for the straight pipe ST12, a minimum usable length is specified. Therefore, a minimum length is specified for the tee-to-elbow dimension m2 of the long-pipe type plastic piping unit UN-L. The minimum length of the tee-to-elbow dimension m2 is longer than the tee-to-elbow dimension m1 specified for the short-pipe type plastic piping unit UN-S.

[0026] As an example, for a plastic piping unit with the diameter pattern (T20 x L20) in the first row of the reference table in Figure 2, the dimension m1 between the tee and elbow for the short pipe type is 130 mm, and the dimension m2 between the tee and elbow for the long pipe type is 237 mm or more.

[0027] An example of a processing procedure that the design support device 100 of this embodiment executes in response to the allocation of a resin piping unit UN in the piping component allocation process will be described with reference to the flowchart of FIG.

[0028] Step S100: In the design support device 100, the detection unit 121 extracts the design content of the piping structure from the design drawing data stored in the design drawing storage unit 133.

[0029] Step S102: The detection unit 121 performs line segmentation so that the piping structure extracted in step S100 is represented by connecting line segments.

[0030] Step S104: The detection unit 121 detects one branch point from the segmented piping structure (the segmented piping structure) as a processing target. The branch point detected in step S104 is a line segment corresponding to a structural portion in the piping structure where an elbow EB is connected to a tee TE and a branch pipe extending from the tee. Step S106: The diameter pattern acquisition unit 122 acquires, from the design drawing, the diameter pattern (the diameter of the tee main pipe and the diameter of the elbow) set in the design drawing corresponding to the branch portion to be processed.

[0031] Step S108: The conversion unit 123 determines whether or not there is a resin piping unit UN in the reference table that has the same diameter pattern as that acquired in step S106.

[0032] Step S110: If it is determined that there is a plastic piping unit UN with the same diameter pattern, the conversion unit 123 calculates the tee-elbow dimension m3 of the branch portion to be processed in the design drawing. The conversion unit 123 obtains the tee-to-elbow dimension m2 of the long-pipe type plastic piping unit UN-L associated with the same diameter pattern as the branch portion to be processed from the reference table. The conversion unit 123 determines whether the tee-to-elbow dimension m3 of the branch portion obtained by calculation is less than the obtained tee-to-elbow dimension m2.

[0033] Step S112: If it is determined that the tee-to-elbow dimension of the branch location obtained by calculation in step S110 is less than the acquired tee-to-elbow dimension m2, the conversion unit 123 obtains from the reference table the tee-to-elbow dimension m1 of a short-pipe type plastic piping unit UN-S associated with the same diameter pattern as the branch location being processed. The conversion unit 123 converts the tee-to-elbow dimension m3 of the branch location being processed in the design drawing to the acquired tee-to-elbow dimension m1. This conversion of the tee-to-elbow dimension is equivalent to assigning a short-pipe type plastic piping unit UN-S with the same diameter pattern as shown in the design drawing to the branch location being processed in the design drawing.

[0034] Furthermore, when changing the tee-to-elbow dimension m3 of the branch portion to be processed to the tee-to-elbow dimension m1 in step S112, the conversion unit 123 may fix the position of the tee and move the position of the elbow EB. By moving the position of the elbow EB in this way, the center line of the moved elbow EB does not coincide with the center line of the piping connected to the elbow EB and becomes displaced. At this stage, the conversion unit 123 may, for example, separate the assigned short-pipe type plastic piping unit UN-S from the piping downstream of the joint male thread JT at the end of the joint male thread JT. The disconnected portion may be reconnected to the resin piping unit UN-S and the piping by, for example, changing the piping downstream of the joint male thread JT in a subsequent revision of the design drawings. Alternatively, the piping may not be changed in the design drawings, and the resin piping unit UN-S and the piping may be connected using a flexible piping member during construction.

[0035] Step S114: The conversion unit 112 assigns a short-pipe type plastic piping unit UN-S having the same diameter pattern as that acquired in step S106 to the branch portion to be processed in the design drawing. At this time, the conversion unit 112 may acquire a piping component ID indicating the plastic piping unit UN-S to be registered from the piping component master stored in the piping component master storage unit 131, for example, and associate the acquired piping component ID with the branch portion to be processed in the design drawing.

[0036] Step S116: If it is determined in step S110 that the tee-elbow dimension m3 is equal to or greater than the tee-elbow dimension m2, the conversion unit 123 assigns to the branching portion to be processed in the design drawing a long-pipe type plastic piping unit UN-L that has the same caliber pattern as that obtained in step S106 and has the tee-elbow dimension m3 that was set at the branching portion to be processed in the design drawing.

[0037] Step S118: If it is determined in step S108 that there is no diameter pattern in the reference table that matches the diameter pattern acquired in step S106, the conversion unit 123 assigns a resin piping component that corresponds to the diameter pattern acquired in step S106 from among the resin piping components stored in the piping component master storage unit 131 to the branch portion to be processed in the design drawing. Specifically, the conversion unit 123 may assign a resin tee and elbow whose specifications have the same diameters as the diameter pattern (diameter of the tee main pipe and diameter of the elbow) acquired in step S106 to the branch portion to be processed.

[0038] Step S120: After the processing of steps S114, S116, and S118, the conversion unit 123 determines whether or not the allocation of resin piping units to all branch locations in the design drawing has been completed. If there are still branch locations that have not been assigned resin piping units, the process returns to step S104, and the process of assigning resin piping units to the next branch location is performed. Then, when it is determined that the allocation of resin piping units to all branch locations has been completed, the process in the same figure ends.

[0039] With reference to Fig. 6, a specific example of allocation of resin piping units according to the processing procedure of the flowchart in Fig. 5 will be described. In the following description, the case where the resin piping units UN are those shown in the reference table in Fig. 2 will be taken as an example. The figure shows six branching points BR (BR1 to BR6) among the branching points included in the piping structure segmented in step S102. In the figure, the diameter pattern of the branching point BR is expressed as T20 x L20 when the diameter of the main tee pipe is 20 mm and the diameter of the elbow is 20 mm.

[0040] Steel pipe piping units MUN (MUN1 to MUN6) are shown corresponding to each branch portion BR (BR1 to BR6). The steel pipe piping units MUN1 to MUN6 are steel pipe piping units that are assigned to the corresponding positions of the branch portions BR1 to BR6 in the piping structure of the design drawing. The replacement piping unit is composed of piping members that are steel pipes. The steel pipe piping units MUN1 to MUN6 may be composed of a tee, an elbow, and a straight pipe. In this case, the straight pipes of the steel pipe piping units MUN5 and MUN6 in the figure are hidden by the joints. Alternatively, of the steel pipe piping units MUN1 to MUN6, the steel pipe piping units MUN1 to MUN4 may be composed of a tee, an elbow, and a straight pipe, and the steel pipe piping units MUN5 and MUN6 may be composed of an elbow connected to a tee without a straight pipe.

[0041] In the figure, the tee-to-elbow dimension m3 of the corresponding branch point BR for each steel pipe piping unit MUN is shown. Of the steel pipe piping units MUN, steel pipe piping units MUN1 to MUN4 have the same diameter pattern of T20 x L20, but the tee-to-elbow dimension m3 differs at 100 mm, 150 mm, 200 mm, and 250 mm, while steel pipe piping units MUN5 and MUN6 have the same diameter pattern of T100 x L100, but the tee-to-elbow dimension differs at 200 mm and 250 mm.

[0042] 6 is detected in step S104, it is determined in step S108 that there is a resin piping unit UN in the look-up table that has the same diameter pattern as that acquired in step S106. Specifically, in the look-up table, the resin piping unit UN that has the same diameter pattern as that acquired in step S106 is the resin piping unit UN with the diameter pattern (20×20) in the first row of FIG. In this case, if the branch site detected in step S104 is any one of branch sites BR1 to BR3, it is determined in step S110 that the tee-to-elbow dimension m3 of the branch site is less than the tee-to-elbow dimension m2 obtained from the lookup table. Specifically, the tee-to-elbow dimension m3 of the branch site in this case is 100 mm, 150 mm, or 200 mm, and the tee-to-elbow dimension m2 is 237 mm. In this case, the plastic piping units UN are assigned in steps S112 and S114. That is, to each of the branching portions BR1 to BR3, a short-pipe type plastic piping unit UN1 having a diameter pattern of T2×L20 and a tee-elbow distance m1 of 130 mm is assigned, as shown in Fig. 6.

[0043] In this embodiment, when allocating the plastic piping unit UN1 to correspond to the branching points BR1 to BR3 (steel pipe piping units MUN1 to MUN3) as described above, in the design drawing, the tee in the plastic piping unit UN1 is fixed without moving from the corresponding line segment in the corresponding branching point BR1 to BR3, and the elbow is moved in accordance with changes in the tee-elbow distance. On the other hand, if the branch portion detected in step S104 is branch portion BR4, it is determined in step S110 that the tee-to-elbow dimension m3 is equal to or greater than the tee-to-elbow dimension m2. In this case, a plastic piping unit is assigned in step S116. That is, as shown in FIG. 6, a long-pipe type plastic piping unit UN4 is assigned to branch portion BR4, with a diameter pattern of T20 x L20 and a tee-to-elbow dimension m2 of 250 mm, the same as the tee-to-elbow dimension m3 of branch portion BR4.

[0044] 6 is detected in step S104, it is determined in step S108 that the lookup table does not contain a plastic piping unit UN having the same diameter pattern as that obtained in step S106. In this case, none of the plastic piping units shown in the lookup table can be assigned to the branching portion BR5 or BR6. Therefore, the conversion unit 123 allocates a resin piping unit in step S118. In this case, the conversion unit 123 selects, from the piping component master, a piping component that can form a resin piping unit whose diameter pattern and the tee-elbow distance dimension match. Furthermore, there may be a case where the piping component master does not contain a resin piping unit whose diameter pattern and tee-elbow dimension match those of the branch portion BR5 or BR6. In this case, the conversion unit 123 selects, for example, a piping component that can form a resin piping unit whose dimensions are similar to those of the branch portion BR5 or BR6. Specifically, the conversion unit 123 may set a diameter that is larger than and closest to the diameter of the branch portion BR5 or BR6 from among the diameters defined for the resin piping components. The conversion unit 123 may determine whether there is a resin piping unit UN corresponding to the diameter set in step S108. The conversion unit 123 allocates a resin piping unit using the piping member selected as described above. Specifically, if the branching portion BR5 is detected in step S104, the conversion unit 123 may assign the resin piping unit UN5 to the branching portion BR5 using two piping components: a tee pipe with a diameter of T100 in the main tee pipe and an elbow with a diameter of L100, as shown in Fig. 6 for the resin piping unit UN5. However, in this example, the dimension between the tee pipe and the elbow exceeds 200 mm in the combination of the above piping components. In this case, the conversion unit 123 assigns the resin piping unit UN5 as if it were made of the above two piping components and with a dimension between the elbows of 200 mm on the design drawing.

[0045] Also, if the branching portion BR6 is detected in step S104, the conversion unit 123 assigns the resin piping unit UN6, which is composed of two piping components, a tee with a diameter of T100 in the main tee pipe and an elbow with a diameter of L100, to the branching portion BR6, as shown as the resin piping unit UN6 in Figure 6.

[0046] 5, the branching portion is detected by dividing the piping structure in the design drawing into lines in step S102. Instead of this process, the design support device 100 may identify the location where the joint is located based on the information on the piping structure in the design drawing, and assign a plastic piping unit that corresponds to the diameter pattern and the tee-elbow dimension of the identified joint location. In addition, the piping components that can be assigned to the design drawings are not limited to those made of resin, but can be any piping components that have dimensional specifications according to standards and have restrictions on adjusting the length by cutting, etc.

[0047] In this embodiment, the design support system including the allocation of resin piping units may be configured as a system including a server on a network and a terminal communicably connected to the server. In this case, the terminal accesses the server using a design support application or a web browser and uploads design drawing data or data extracted from the design drawing of the piping structure (which may be line-divided data) to the server. The server has functions equivalent to those of the control unit 102 and memory unit 103 in FIG. 1.

[0048] Note that a program for implementing the functions of the design support device 100 may be recorded on a computer-readable recording medium, and the program may be loaded into a computer system and executed to perform the processing of the design support device 100. Here, "loading a program recorded on a recording medium into a computer system and executing it" includes installing the program on a computer system. The term "computer system" here includes hardware such as an operating system and peripheral devices. The term "computer system" may also include multiple computer devices connected via a network, including the Internet, a WAN, a LAN, a dedicated line, or other communication lines. The term "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, as well as storage devices such as hard disks built into a computer system. Thus, a recording medium storing a program may be a non-transitory recording medium such as a CD-ROM. The term "recording medium" also includes internal or external recording media accessible from a distribution server for distributing the program. The program code stored on the distribution server's recording medium may be different from the program code executable on a terminal device. In other words, the format in which the program is stored on the distribution server does not matter as long as it can be downloaded from the distribution server and installed in a form that is executable on the terminal device. The program may be divided into multiple parts, each of which may be downloaded at different times and then combined on the terminal device, or each of the divided programs may be distributed by a different distribution server. Furthermore, the term "computer-readable recording medium" also includes a storage medium that stores a program for a certain period of time, such as volatile memory (RAM) within a computer system that serves as a server or client when a program is transmitted over a network. The program may also be a program that realizes part of the above-described functions. Furthermore, the program may be a so-called differential file (differential program) that can realize the above-described functions in combination with a program already stored in the computer system. [Explanation of symbols]

[0049] 100 Design support device, 101 User interface unit, 102 Control unit, 103 Memory unit, 112 Conversion unit, 121 Detection unit, 122 Diameter pattern acquisition unit, 123 Conversion unit, 131 Piping component master memory unit, 132 Reference table memory unit, 133 Design drawing memory unit

Claims

1. a detection unit for detecting a branch portion in a form in which an elbow is combined with a branch pipe side of a tee in a piping structure shown in a design drawing; a diameter pattern acquisition unit that acquires, from the design drawing, a diameter pattern based on the diameters of the tee main pipe and the elbow at the branching portion detected by the detection unit; a reference table storage unit for storing a reference table that stores tee-to-elbow distances determined in correspondence with diameter patterns that are combinations of diameters of main tee pipes and elbow diameters of piping units in which an elbow of a predetermined standard is combined with a branch pipe side of a tee of a predetermined standard; a conversion unit that performs a conversion process to convert the tee-to-elbow dimension of the branch portion in the design drawing into a tee-to-elbow dimension stored in the reference table corresponding to the same diameter pattern as that acquired by the diameter pattern acquisition unit; A design support system equipped with:

2. The lookup table is storing a first dimension, which is a specific length, and a second dimension, which is a minimum length greater than the first dimension, as a tee-elbow dimension corresponding to each piping unit; The conversion unit The conversion process is performed when the dimension between the tee and the elbow of the branching portion in the design drawing is less than the minimum length of the second dimension. The design support system according to claim 1 .

3. In the conversion process, the conversion unit fixes the position of the tee and the elbow of the piping unit in the design drawing, and moves the position of the elbow according to the converted tee-elbow distance.

3. The design support system according to claim 1.

4. The conversion unit If the same aperture pattern as that acquired by the aperture pattern acquisition unit is not stored in the reference table, the conversion process is not performed. The design support system according to any one of claims 1 to 3.

5. The reference table stores tee-elbow distances determined for each diameter pattern according to the standards of the resin piping members that make up the piping unit. The design support system according to any one of claims 1 to 4.

6. A design support method in a design support system, comprising: a detecting step of detecting a branching portion in a form in which an elbow is combined with a branch pipe side of a tee in a piping structure shown in a design drawing; a diameter pattern acquisition step of acquiring, from the design drawing, a diameter pattern based on the diameters of the tee main pipe and the elbow at the branching portion detected in the detection step; a conversion step of converting the tee-to-elbow dimension of the branching portion in the design drawing into a tee-to-elbow dimension stored in a reference table stored in a reference table storage unit, the reference table storing tee-to-elbow dimensions determined in correspondence with a diameter pattern that is a combination of a diameter of a tee main pipe and a diameter of an elbow of a predetermined standard on the branch pipe side of a tee of a predetermined standard; A design support method including:

7. A computer provided in the design support system, a detection unit for detecting a branching portion in a form in which an elbow is combined with a branch pipe side of a tee in a piping structure shown in a design drawing; a diameter pattern acquisition unit that acquires, from the design drawing, a diameter pattern based on the diameters of the tee main pipe and the elbow at the branching portion detected by the detection unit; a conversion unit that performs a conversion process to convert the tee-to-elbow dimension of the branching portion in the design drawing into a tee-to-elbow dimension stored in a reference table that is stored in a reference table storage unit and stores tee-to-elbow dimensions determined in correspondence with a diameter pattern that is a combination of a diameter of a tee main pipe and a diameter of an elbow of a predetermined standard on the branch pipe side of a tee of a predetermined standard; A program to function as a

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