JP7640445B2 - Piping design support device and piping design support method - Google Patents

Description

The present invention relates to a piping design support device and a pipeline design support method.

Patent Document 1 discloses a drawing information management device that uses a computer to manage a piping network such as a water supply pipe network. This drawing information management device is equipped with a functional block that executes a process called pipe division, which divides and represents a pipeline between intersecting connection points that is represented as a single pipe in the piping network into multiple pipes that are actually laid.

Using a piping design support device equipped with such functional blocks, a designer specifies multiple intersections on a road on a map displayed on the display unit, from a start point to an end point, then generates a pipeline that passes through each intersection (the pipeline is called a planned line) and generates a pipe layout diagram that shows the pipeline with multiple pipes.

Japanese Patent Application Publication No. 08-287132

However, design policies regarding pipe division drawings vary from one business entity to another, so designers must proceed with design work in accordance with the policies established by each business entity.
For example, there may be a design that prioritizes the environment so as to reduce the amount of remaining pipe, which is the remainder of the cut pipe, or a design that prioritizes economy so as to minimize costs.

However, carrying out appropriate design work to comply with the different policies of each business entity can be a time-consuming and complicated task even for experienced designers, and depending on the designer's skill level, it may be difficult to design in accordance with the policies.

In view of the above-mentioned problems, the object of the present invention is to provide a piping design support device and a pipeline design support method that can create appropriate pipe layout diagrams in accordance with the policy set by the business entity, regardless of the skill level of the designer.

In order to achieve the above-mentioned object, a first characteristic configuration of a piping design support device according to the present invention is a pipeline design support device that generates an appropriate pipeline by optimizing a receiving-inserting connection mode of a joint part of any of the special shaped pipes that constitute the base pipeline so as to satisfy a predetermined design condition for a base pipeline including special shaped pipes arranged at a plurality of intersections extending from a start point to an end point specified on a map, and straight pipes and necessary cut pipes that connect each of the special shaped pipes, and the pipeline design support device generates an appropriate pipeline by optimizing a receiving-inserting connection mode of a joint part of any of the special shaped pipes that constitute the base pipeline so as to satisfy a predetermined design condition, the application of which is a change object extraction unit that extracts, from among the pipes that constitute the base pipeline, special shaped pipes whose connection mode can be changed to any of receiving-inserting, inserting-receiving, and receiving-receiving , and the intersections associated with the special shaped pipes, and the change object extraction unit that extracts the ... The system includes an evaluation target pipeline generation unit that generates a plurality of piping patterns using non-standard pipes having different connection modes for each of the intersections extracted by the target extraction unit and generates a plurality of evaluation target pipelines corresponding to the base pipeline by combining each piping pattern; an evaluation value calculation unit that calculates an evaluation value corresponding to the predetermined design conditions for each of the evaluation target pipelines generated by the evaluation target pipeline generation unit; an appropriate pipeline generation unit that generates one of the evaluation target pipelines as the appropriate pipeline based on the evaluation value calculated by the evaluation value calculation unit; and a drawing output unit that outputs the appropriate pipeline generated by the appropriate pipeline generation unit as a pipeline design drawing.

A base pipeline is generated by arranging special-shaped pipes at multiple intersections from a start point to an end point specified on a map and connecting each special-shaped pipe with a straight pipe and a necessary cut pipe. Special-shaped pipes whose joint connection mode can be changed to either receive-insertion, insert-receive, or receive-receive so as to satisfy design conditions and intersections associated with the special-shaped pipes are extracted from the base pipeline by a change target extraction unit, multiple piping patterns are generated for each extracted intersection by an evaluation target pipeline generation unit, and multiple evaluation target pipelines are generated by combining the piping patterns for each intersection. An evaluation value for each evaluation target pipeline is calculated by an evaluation value calculation unit, an evaluation target pipeline selected by the appropriate pipeline generation unit based on the evaluation value is generated as an appropriate pipeline, and the appropriate pipeline is output by a drawing output unit.

The second characteristic configuration is that, in addition to the first characteristic configuration described above, the evaluation value calculation unit calculates a normalized value for each design condition as the evaluation value so that a relative evaluation can be performed between different design conditions.

The evaluation value calculated by the evaluation value calculation unit is a value according to the specified design conditions, and if the design conditions differ, the evaluation value will also be different. Even if a high evaluation value is obtained for an evaluated pipeline under specific design conditions, a balanced evaluation cannot be performed unless it is possible to perform a relative evaluation of what the value would be under other design conditions. In such cases, an appropriate relative evaluation can be performed by calculating an evaluation value that has been normalized for each design condition.

The third characteristic configuration is that, in addition to the second characteristic configuration described above, the evaluation value calculation unit calculates the evaluation value by weighting and adding the normalized values for each design condition with a predetermined weighting coefficient so that different design conditions can be combined for evaluation.

When multiple pipelines are evaluated, pipelines evaluated only under specific design conditions are biased in some way, and are not necessarily preferable when other design conditions are taken into account. Therefore, by using a weighted sum of the evaluation values normalized for each design condition and weighted by a specified weighting coefficient as the final evaluation value, it becomes possible to generate a balanced pipeline as the appropriate pipeline.

The fourth characteristic configuration is that, in addition to the first characteristic configuration described above, it further includes a design condition selection unit that selects the predetermined design condition from a plurality of preset design conditions, and calculates an evaluation value corresponding to the design condition selected by the design condition selection unit.

It will be possible to select the design conditions to be evaluated in advance, enabling highly flexible design support.

The fifth characteristic feature is that, in addition to any one of the first to fourth characteristic features described above, the predetermined design conditions include an environmental priority condition that minimizes the remaining pipe length caused by the cutting of pipes required for pipe connection.

If the design conditions to be evaluated are environmentally-friendly conditions that minimize the length of remaining pipes, there will be less remaining pipes and post-processing during construction will be easier.

The sixth characteristic feature of the present invention is that, in addition to any one of the first to fifth characteristic features described above, the predetermined design conditions include an economic priority condition that minimizes the costs required for pipeline construction.

If the design conditions to be evaluated are economically-oriented conditions that minimize the costs required for pipeline construction, construction with excellent economical efficiency will be possible.

A first characteristic configuration of the pipeline design support method according to the present invention is a pipeline design support method that uses a computer to generate an appropriate pipeline by optimizing the connection mode of the receiving-insertion of the joint part of any of the special shaped pipes that constitute the base pipeline so as to satisfy a predetermined design condition for a base pipeline including special shaped pipes arranged at a plurality of intersections from a start point to an end point specified on a map, and straight pipes and necessary cut pipes that connect each of the special shaped pipes, and the method includes a change target extraction process that extracts, from among the pipes that constitute the base pipeline, special shaped pipes whose connection mode can be changed to any of receiving-insertion, inserting-receiving, and receiving-receiving, and the intersections associated with the special shaped pipes, and The computer executes the following processes: an evaluation target pipeline generation process for generating a plurality of piping patterns using non-standard pipes having different connection modes for each of the intersections generated, and generating a plurality of evaluation target pipelines corresponding to the base pipeline by combining each piping pattern; an evaluation value calculation process for calculating an evaluation value corresponding to the specified design conditions for each evaluation target pipeline generated in the evaluation target pipeline generation process; an appropriate pipeline generation process for generating one of the evaluation target pipelines as the appropriate pipeline based on the evaluation value calculated in the evaluation value calculation process; and a drawing output process for outputting the appropriate pipeline generated in the appropriate pipeline generation process as a pipeline design drawing.

As described above, the present invention makes it possible to provide a piping design support device and a pipeline design support method that can create appropriate pipe layout diagrams in accordance with the guidelines set by the business entity, regardless of the skill level of the designer.

FIG. 1 is an explanatory diagram of a piping design support device according to the present invention. (a) is an explanatory diagram of the route of the main pipe and the branch pipe connecting the specified intersection, and (b) is an explanatory diagram of the pipe division diagram automatically generated by the piping design support device. A flowchart showing a procedure for generating a pipe layout diagram using the piping design support device according to the present invention. Explanation of base pipeline 1A to 1E are explanatory diagrams of piping patterns, and FIG. 1F is an explanatory diagram showing an example of an evaluation target pipeline. Explanation of the cut pipe report Expense summary sheet diagram Weighted evaluation diagram Flowchart showing the procedure of the appropriate pipeline generation process

Hereinafter, a piping design support device according to the present invention will be described with reference to the drawings.
1 shows a functional block configuration of a piping design support device 10. The piping design support device 10 is configured with a laptop computer equipped with a liquid crystal display type display unit 10A and a touch panel type input unit 10B.

The control board housed in the main body is provided with a CPU, a memory unit 18, an input/output circuit, a communication interface circuit, etc., and the function of the piping design support device 10 is realized by executing an application program stored in the memory unit 18 by the CPU.

That is, the piping design support device 10 includes a pipe layout drawing generating unit 11, a storage unit 18, a communication processing unit 19, a display processing unit 20, an input processing unit 21, an output processing unit 22, etc. The communication processing unit 19 is connected to a drawing management server 23 via the Internet, and has an interface function for acquiring existing piping information such as pipe layout drawings, maps, pipe parts, etc., required for piping design from a database managed by the drawing management server 23, and storing newly designed piping information. The display processing unit 20 controls the display of required information via the display unit 10A, the input processing unit 21 controls the processing of information operated via the input unit 10B, and the output processing unit 22 outputs pipe layout drawings, etc. to an output unit 10C such as a printer.

The pipe layout drawing generating unit 11 is a functional block that automatically generates a pipe layout drawing (see FIG. 2(b)) of a pipeline (the pipeline is called a planned line) that connects multiple intersections IP (IP1, IP2, IP3, IP4 in FIG. 2(a)) that are specified via the input unit 10B from a start point to an end point on a road on a map displayed on the display unit 10A, and passes through selectively specified passing instruction points CP (CP in FIG. 2(a)) between each intersection IP.

As shown in FIG. 3, the base pipeline generation unit 12 provided in the pipe layout diagram generation unit 11 displays a road map on a map layer in accordance with the operator's operation (SA1), and sets intersection points IP and necessary passing indicator points CP on the pipeline diagram layer that is superimposed on the map layer (SA2). The passing indicator points CP are specified when laying a pipe so as to draw a gentle curve along the road.

The special-shaped pipes to be placed at each intersection IP are selected from the database in the drawing management server 23 and placed (SA3), and the number of straight pipes and the length of cut pipes to be placed between each intersection IP are calculated and placed (SA4). The number of straight pipes is calculated by dividing the length between adjacent intersections IP by the length of one straight pipe, and the length of the cut pipes is calculated as the remainder. A pipe division diagram is generated by bending and placing straight pipes within a predetermined allowable angle range so that the straight pipes pass through the passing instruction points CP (SA5). In this way, the attributes and installation positions (coordinates) of each pipe to be laid along the planned line are listed and stored in the memory unit 18 together with the pipe division diagram (SA6).

Although not described in detail, in order to allow the operator to easily operate the system, the display unit 10A displays selectable operation commands such as the specification of an intersection point IP, the specification of a passing point CP, and the placement of pipes, and the operator can switch to the specification mode of the intersection point IP or the passing point CP by touching the corresponding display area, and can input the positions of the intersection point IP or the passing point CP by touching a predetermined position on the road map. In addition, when placing an irregular pipe at the intersection point IP, a selection branch for an irregular pipe is displayed, and the operator can specify the irregular pipe to be placed by touching the corresponding display area. The operation interface is constructed so that the operator can automatically generate a pipe division diagram that becomes a base pipeline by selecting an operation command displayed on the display unit 10A.

FIG. 4 illustrates a part of the base pipeline thus generated. In this example, three intersections IPn, IPn+1, and IPn+2 are set in sequence from the base end side, and curved pipes or joint rings, which are deformed pipes, are placed at each intersection. The direction of the joints is determined in the construction order, straight pipes are placed to connect the deformed pipes, and if a cut pipe is required, the cut pipe is placed just before the deformed pipe. In FIG. 4, the cut pipe is shown in bold. In FIG. 4, the white arrow indicates the direction of the joint, with the base end side being the insertion port and the tip side being the socket. Note that there are also cases where the base end side is the socket and the tip side is the insertion port.

As shown in FIG. 1, the pipe layout diagram generating unit 11 further includes functional blocks such as a change target extraction unit 13, an evaluation target pipe generating unit 14, an evaluation value calculation unit 15, an appropriate pipe generating unit 16, and a drawing output unit 17, in order to provide design support for generating an appropriate pipe by optimizing the connection mode of any of the pipes that make up the base pipe, for the base pipe generated by the base pipe generating unit 12, so as to satisfy specified design conditions. The processing executed by each functional block is described in detail below.

The change target extraction unit 13 extracts pipes whose connection mode can be changed and intersections associated with the pipes from among the pipes that make up the base pipeline. A pipe whose connection mode can be changed is a pipe whose joint's receiving-insertion mode can be changed, more specifically, a special-shaped pipe whose receiving-insertion, insert-receiving, and receiving-receiving mode can be changed. Specifically, this applies to pipes whose connection mode can be changed, such as 45° bent pipes, 22.5° bent pipes, and gate valves. Among these pipes, pipes whose front and rear cut pipes can be changed and their intersections are extracted. "Pipes whose front and rear cut pipes can be changed" refers to pipes that can be connected even if they are changed to either the first cut pipe or the second cut pipe. The change target extraction unit 13 extracts all 45° bent pipes, 22.5° bent pipes, and gate valves included in the base pipeline, and intersections associated with the pipes. In the base pipeline shown in FIG. 4, the pipes whose connection mode can be changed are only the 45° bent pipes located at intersections IPn, IPn+1, and IPn+2.

The evaluation target pipeline generating unit 14 generates a plurality of piping patterns having different connection modes for each intersection extracted by the change target extracting unit 13, and generates a plurality of evaluation target pipelines corresponding to the base pipelines by combining the respective piping patterns.
In the case where a special-shaped pipe has a "receiving and inserting" and a "double receiving", if "receiving and inserting" is adopted, the A-cut pipe is adopted on the insertion side , and there is a choice of a pipe other than the B-cut pipe or a B-cut pipe on the receiving side, and if "double receiving" is adopted, there is a choice of connecting the B-cut pipe to both receiving ports or connecting the B-cut pipe to one of them. The state of this case is shown in Figure 5.

Figure 5(a) shows a pattern in which the O-cut pipe OP is placed upstream in the construction direction for both receiving pipes C, Figure 5(b) shows a pattern in which the receiving opening of the A-cut pipe KP is placed upstream in the construction direction for the receiving-inserted pipe C, Figure 5(c) shows a pattern in which the O-cut pipe OP is placed upstream and downstream in the construction direction for both receiving pipes C, Figure 5(d) shows a pattern in which the receiving opening of the A-cut pipe KP is placed upstream in the construction direction for the receiving-inserted pipe C and the O-cut pipe OP is placed downstream, and Figure 5(e) shows a pattern in which the O-cut pipe OP is placed upstream in the construction direction for the receiving-inserted pipe C and the receiving opening of the A-cut pipe KP is placed downstream. In the figures, the symbol SP indicates a straight pipe, and the thick line indicates a cut pipe.

In this example, the patterns shown in Figures 5(a) and 5(b) are mutually convertible and any of them can be adopted, and the patterns shown in Figures 5(c), 5(d), and 5(e) are mutually convertible and any of them can be adopted.
Fig. 5(f) shows a base pipeline corresponding to Fig. 4. In this example, only three intersections IPn, IPn+1, and IPn+2 are extracted by the change target extraction unit 13. The evaluation target pipeline generation unit 14 generates a plurality of evaluation target pipelines by combining adoptable piping patterns for the intersections IPn, IPn+1, and IPn+2.

At intersection IPn, the pattern in FIG. 5(a) is used, and therefore it can be replaced with the pattern in FIG. 5(b). At intersection IPn+1, the pattern in FIG. 5(b) is used, and therefore it can be replaced with the pattern in FIG. 5(a). At intersection IPn+2, the pattern in FIG. 5(c) is used, and therefore it can be replaced with the pattern in FIG. 5(d) or FIG. 5(e). In other words, 2 x 2 x 3 = 12 piping patterns of pipelines are generated as pipelines to be evaluated.

The evaluation value calculation unit 15 calculates an evaluation value corresponding to a predetermined design condition for each evaluation target pipeline generated by the evaluation target pipeline generation unit 14. In this embodiment, the predetermined condition is selectable between design conditions that prioritize the environment so as to reduce the amount of remaining cut pipes when laying the pipeline, and design conditions that prioritize economy so as to minimize the costs required for pipeline construction, such as the material costs of the pipeline, or the material costs and laying costs. In other words, the evaluation value calculation unit 15 also functions as a design condition selection unit.

The design conditions are determined by the designer selecting from the design condition selection display field on the display screen. When design conditions that prioritize the environment are selected, the evaluation value calculation unit 15 generates a pipe cut report for each of the pipelines to be evaluated (in the above example, 12 pipelines to be evaluated). When design conditions that prioritize economy are selected, the evaluation value calculation unit 15 generates a cost list for each of the pipelines to be evaluated (in the above example, 12 pipelines to be evaluated).

Figure 6 shows an example of a cut pipe report. The evaluation value calculation unit 15 calculates the length and number of cut pipes required in the entire evaluation target pipeline, that is, cut pipes A and B, for straight pipes of each nominal diameter, in this embodiment, straight pipes with nominal diameters of 200 mm and 250 mm and length of 5000 mm, in order to consider cut pipes occurring in the entire evaluation target pipeline, rather than cut pipes limited to the connection mode of the intersection extracted by the change target extraction unit 13 in the evaluation target pipeline. In order to reduce the number of remaining pipes, the number of cut pipes required is calculated, taking into account the use of spigot rings, P-Links, G-Links, etc. for pipe connections. As a result, the length and number of remaining pipes are calculated, and a cut pipe report is generated that shows the original pipe type, pipe type, effective length, remaining pipe length, and number of cut pipes. The total remaining pipe length for each nominal diameter is calculated as the evaluation value.

Figure 7 shows an example of a cost list. In the cost list, costs are calculated by focusing on the connection mode of the intersections extracted by the change target extraction unit 13 from the pipeline to be evaluated. For example, in the pattern of Figure 5 (a), double bent pipes, a cut pipe (with a convex portion), and a G-Link are required as material costs, and the costs required for G-Link joining work, joining work other than G-Link, and cutting work are recorded as installation work costs, and the total cost is calculated as the evaluation value.

In addition, in the pattern of Figure 5 (a), costs are calculated for both the use of an insertion ring and the use of a P-Link. When an insertion ring is used, the material costs include a curved pipe, a cut pipe, a liner, and an insertion ring, while the installation costs include two joining processes, cutting and groove cutting, and the costs required for the insertion ring installation, and the total cost is calculated. When a P-Link is used, the material costs include a curved pipe, a cut pipe, a liner, and a P-Link, while the installation costs include two joining processes, and the costs required for the P-Link joining and cutting, and the total cost is calculated as the evaluation value.

When design conditions that prioritize the environment are selected, the appropriate pipeline generation unit 16 generates the evaluation pipeline with the highest evaluation value, that is, the evaluation pipeline with the shortest remaining pipe length, as the appropriate pipeline based on the evaluation value of each evaluation pipeline calculated by the evaluation value calculation unit 15. In this case, the remaining pipe length is evaluated as the total remaining pipe length for each nominal diameter. Note that, when there are remaining pipes with different nominal diameters, the evaluation value may be calculated by multiplying each remaining pipe length by a correction coefficient according to the nominal diameter and adding them together. For example, the correction coefficient for a nominal diameter with a high evaluation weight may be made larger than the correction coefficient for a nominal diameter with a low evaluation weight.

In addition, when design conditions that prioritize economy are selected, the appropriate pipeline generation unit 16 generates the evaluation target pipeline with the highest evaluation value, i.e., the evaluation target pipeline with the lowest cost, as the appropriate pipeline based on the evaluation value of each evaluation target pipeline calculated by the evaluation value calculation unit 15.

The drawing output unit 17 outputs the appropriate pipeline generated by the appropriate pipeline generation unit 16 to the output unit 10C as a pipeline design drawing, or outputs it to the drawing management server 23 via the communication processing unit 19.

In the above explanation, the evaluation value calculated by the evaluation value calculation unit 15 is a value according to the specified design conditions, and if the design conditions are different, the evaluation value will also be different. Even if a high evaluation value is obtained for an evaluated pipeline under specific design conditions, it will be difficult to perform a balanced evaluation unless it is possible to relatively evaluate the value under other design conditions.

In preparation for such a case, it is preferable that the evaluation value calculation unit 15 is configured to calculate a normalized value for each design condition as the evaluation value so that relative evaluation can be performed between different design conditions.

For example, for design conditions that prioritize environmental friendliness, it is preferable to statistically process past design and construction examples, calculate the average remaining pipe length per pipe length of the base pipeline as a reference value, and evaluate the remaining pipe length per pipe length of each evaluated pipeline divided by the reference value as a normalized value. An evaluation value of 1 is equivalent to the past average, and an evaluation value less than 1 can be evaluated as being shorter than the past average and being environmentally friendly.

For example, for design conditions that prioritize economy, it is preferable to statistically process past design and construction examples, calculate the average cost per special-shaped pipe whose piping pattern can be changed as a reference value, and evaluate the average cost per special-shaped pipe whose piping pattern can be changed included in each evaluated pipeline divided by the reference value as a normalized value. An evaluation value of 1 is equivalent to the past average, and an evaluation value less than 1 can be evaluated as being cheaper and more economical than the past average.

In this case, the evaluation value calculation unit 15 needs to calculate evaluation values for both design conditions that prioritize environmental friendliness and design conditions that prioritize economic efficiency, and it becomes possible to objectively determine which design conditions are relatively superior. Figures 8(a) and (b) show the remaining pipe length, which is the evaluation value for environmental friendliness for a combination of piping patterns, and its normalized evaluation value, and the cost, which is the evaluation value for economic efficiency, and its normalized evaluation value. The smaller the normalized evaluation value, the higher the evaluation, and it becomes possible to objectively evaluate both environmental friendliness and economic efficiency.

Furthermore, the evaluation value calculation unit 15 may be configured to calculate an evaluation value by weighting and adding the normalized values for each design condition using a predetermined weighting coefficient so that different design conditions can be combined for evaluation.

For example, for multiple pipelines to be evaluated, an evaluation value V1 based on design conditions that prioritize environmental friendliness and an evaluation value V2 based on design conditions that prioritize economic friendliness can be found, and an overall evaluation value V can be calculated as V = W1 x V1 + W2 x V2. If W1 = W2, an evaluation can be made that gives equal weight to environmental friendliness and economic friendliness, if W1 > W2, an evaluation can be made that places more importance on environmental friendliness, and if W1 < W2, an evaluation can be made that places more importance on economic friendliness. There are no particular restrictions on the values of the weighting coefficients W1 and W2, and they can be set in advance taking into account various conditions such as the construction area and construction budget. By evaluating in this way, a well-balanced pipeline that has high evaluations in both environmental friendliness and economic friendliness can be generated as the appropriate pipeline from among multiple pipelines to be evaluated.

Figure 9 shows the procedure for generating an appropriate pipeline by weighting calculation in the pipe layout diagram generating unit 11. When the base pipeline generating unit 12 generates a base pipeline (SB1), the change target extracting unit 13 extracts a change target from the base pipeline (SB2), and the evaluation target pipeline generating unit 14 generates multiple piping patterns with different connection modes for the change target, and generates multiple evaluation target pipelines by combining them (SB3).

In the evaluation value calculation unit 15, first, design conditions that prioritize environmental friendliness are selected, and the evaluation values of each pipeline to be evaluated are calculated and normalized (SB4), and then design conditions that prioritize economic efficiency are selected, and the evaluation values of each pipeline to be evaluated are calculated and normalized (SB5).

The appropriate pipeline generation unit 16 calculates an overall evaluation value for each pipeline to be evaluated by weighting the evaluation value prioritizing environmental friendliness and the evaluation value prioritizing economic efficiency using weighting coefficients W1 and W2 (SB6), and the pipeline to be evaluated with the best overall evaluation value is generated as an appropriate pipeline (SB7). The drawing output unit 17 outputs the appropriate pipeline to the drawing management server 23, etc. (SB8).

In the above explanation, the design conditions selectable by the design condition selection unit are a choice between conditions that prioritize environmental friendliness and conditions that prioritize economic efficiency, but the selectable design conditions are not limited to these and may be configured to allow other design conditions to be selected.

For example, the system may be configured to allow the selection of design conditions that prioritize ease of construction, design conditions that minimize construction time, design conditions that minimize the impact on surrounding residents, and design conditions that minimize water outage time.

Design conditions that prioritize constructability and minimize construction time can be achieved by adding design parameters such as excavation depth, joints, and number of cut pipes to the pipe layout design. A shallower excavation depth, fewer joints, and fewer cut pipes will improve constructability and shorten construction time.

As a design condition that minimizes the impact on surrounding residents, a method can be adopted in which a base pipeline is generated by placing joint rings at corresponding intersections so that work around important public facilities such as schools and hospitals can be flexibly postponed or brought forward. As a design condition that minimizes the duration of water outages, a method can be adopted in which a pipe layout diagram that allows work to be done so that the time of the water outage does not overlap with the operating hours of surrounding facilities, and a bypass pipeline can be added.

By combining these multiple design conditions in an evaluation, it becomes possible to generate an appropriate pipeline that meets the purpose.

In other words, the pipeline design support method according to the invention is a pipeline design support method that uses a computer to generate an appropriate pipeline that optimizes the connection mode of any of the pipes that make up the base pipeline, which includes special-shaped pipes arranged at multiple intersections from a start point to an end point specified on a map, and straight pipes and necessary cut pipes that connect each of the special-shaped pipes, so as to satisfy specified design conditions.

The pipeline design support method is configured to execute, on a computer, a change target extraction process that extracts pipes that can change the connection mode and intersections associated with the pipes from among the pipes that make up the base pipeline, an evaluation target pipeline generation process that generates a plurality of piping patterns with different connection modes for each intersection extracted by the change target extraction process and combines each piping pattern to generate a plurality of evaluation target pipelines that correspond to the base pipeline, an evaluation value calculation process that calculates an evaluation value corresponding to a predetermined design condition for each evaluation target pipeline generated by the evaluation target pipeline generation process, an appropriate pipeline generation process that generates one of the evaluation target pipelines as an appropriate pipeline based on the evaluation value calculated by the evaluation value calculation process, and a drawing output process that outputs the appropriate pipeline generated by the appropriate pipeline generation process as a pipeline design drawing.

The piping design support device 10 may be configured as a desktop computer other than a laptop computer, or may be configured as a mobile device such as a smartphone or tablet computer. When configured as a smartphone or tablet computer, the piping design support application program may be installed on a cloud computer such as the drawing management server 23, and the smartphone or tablet computer may be equipped with an API (Application Programming Interface) that works with the cloud computer.

The above-described embodiment shows one aspect of the present invention, and the technical scope of the present invention is not limited based on the description. It goes without saying that the present invention can be modified and designed as appropriate within the scope that achieves the effects of the present invention.

10: Piping design support device 10A: Display unit 10B: Input unit 10C: Output unit 11: Pipe layout diagram creation device 12: Base pipeline generation unit 13: Change target extraction unit 14: Evaluation target pipeline generation unit 15: Evaluation value calculation unit (design condition selection unit)
16: Appropriate pipeline generating unit 17: Drawing output unit 19: Communication processing unit 20: Display processing unit 21: Input processing unit 22: Output processing unit 23: Drawing management server

Claims (7)

A pipeline design support device that generates an appropriate pipeline by optimizing the connection mode of the receiving-insertion of the joints of any of the special shaped pipes that constitute a base pipeline including special shaped pipes arranged at a plurality of intersections from a start point to an end point specified on a map, and straight pipes and necessary cut pipes that connect each of the special shaped pipes, so as to satisfy a predetermined design condition,
A change target extraction unit that extracts, among the pipes constituting the base pipeline, special pipes whose connection manner can be changed to any one of reception-insertion, insertion-reception, and reception-reception , and the intersections associated with the special pipes;
an evaluation target pipeline generation unit that generates a plurality of piping patterns using non-standard pipes with different connection modes for each of the intersections extracted by the change target extraction unit, and generates a plurality of evaluation target pipelines corresponding to the base pipeline by combining the respective piping patterns;
an evaluation value calculation unit that calculates an evaluation value corresponding to the predetermined design conditions for each of the evaluation target pipelines generated by the evaluation target pipeline generation unit;
an appropriate pipeline generating unit that generates one of the evaluation target pipelines as the appropriate pipeline based on the evaluation value calculated by the evaluation value calculating unit;
a drawing output unit that outputs the appropriate pipeline generated by the appropriate pipeline generation unit as a pipeline design drawing;
A pipeline design support device including: The pipeline design support device according to claim 1, wherein the evaluation value calculation unit calculates a normalized value for each design condition as the evaluation value so that a relative evaluation can be performed between different design conditions. The pipeline design support device according to claim 2, wherein the evaluation value calculation unit calculates the evaluation value by weighting and adding the normalized values for each design condition with a predetermined weighting coefficient so that different design conditions can be combined for evaluation. The pipeline design support device according to claim 1 further comprises a design condition selection unit that selects the predetermined design condition from a plurality of preset design conditions, and calculates an evaluation value corresponding to the design condition selected by the design condition selection unit. The pipeline design support device according to any one of claims 1 to 4, wherein the predetermined design conditions include an environmental priority condition that minimizes the length of remaining pipes caused by cutting pipes required for pipe connection. The pipeline design support device according to any one of claims 1 to 5, wherein the predetermined design conditions include an economic priority condition that minimizes the costs required for pipeline construction. A pipeline design support method for generating an appropriate pipeline by using a computer, the appropriate pipeline being generated for a base pipeline including special shaped pipes arranged at a plurality of intersections from a start point to an end point specified on a map, and straight pipes and necessary cut pipes connecting the special shaped pipes, by optimizing the connection mode of receiving and inserting the joints of any of the special shaped pipes constituting the base pipeline so as to satisfy a predetermined design condition, the method comprising:
A change target extraction process for extracting, among the pipes constituting the base pipeline, special pipes whose connection manner can be changed to any one of reception-insertion, insertion-reception, and reception-reception , and the intersections associated with the special pipes;
an evaluation target pipeline generation process for generating a plurality of piping patterns using deformed pipes with different connection modes for each of the intersections extracted by the change target extraction process, and combining the piping patterns to generate a plurality of evaluation target pipelines corresponding to the base pipeline;
an evaluation value calculation process for calculating an evaluation value corresponding to the predetermined design conditions for each of the evaluation target pipelines generated in the evaluation target pipeline generation process;
an appropriate pipeline generation process for generating one of the evaluation target pipelines as the appropriate pipeline based on the evaluation value calculated in the evaluation value calculation process;
a drawing output process for outputting the appropriate pipeline generated by the appropriate pipeline generation process as a pipeline design drawing;
The pipeline design support method is executed by the computer.

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