JP7225148B2 - PIPE ROUTING DEVICE AND METHOD AND PROGRAM THEREOF - Google Patents

Description

The present disclosure relates to a pipe routing device, its method, and a program.

For example, at the stage of designing plant equipment, an operation called routing is required to determine the routes of a large number of pipes arranged in the plant equipment. In routing, it is necessary to consider a piping route that weaves through many structural steel frames and equipment in a three-dimensional space, that is, a piping route that does not interfere with obstacles for piping. are collected as much as possible to determine a piping route in a short distance.

As a method of such routing, for example, in Patent Document 1, a region is divided into meshes, and attribute information (upper and lower floor surfaces and the degree of congestion around the mesh) to select a route with good workability.

Further, in Patent Document 2, the space in the plant is regarded as a rectangular parallelepiped model, and this rectangular parallelepiped model is divided into a plurality of divided areas to generate divided areas. A method is disclosed for generating a piping route by defining areas or interference areas and connecting vertices of non-interference areas.

JP-A-2002-288250 Japanese Unexamined Patent Application Publication No. 2007-219988

For example, the routing for each pipe can be relatively easily performed by a designer. However, in one plant facility, the number of pipes that must be routed is enormous, and the diameters of the pipes are also various. For this reason, conventionally, even when a computer is used, it takes a very long time and processing work based on repetitive calculations based on trial and error to route all pipes used in a plant.

Further, as shown in Patent Documents 1 and 2, methods for automatically performing routing have been proposed, and the use of these methods reduces the designer's labor and work hours. However, for example, the conventional method of discretizing a three-dimensional space as a cubic model or rectangular parallelepiped model and simultaneously searching three axial directions while performing interference judgment does not provide the required width (m unit) and accuracy (millimeter unit) for plant design. It is difficult to satisfy both the unit) and the processing load of the computer is also large.

The present disclosure has been made in view of such circumstances, and an object of the present disclosure is to provide a pipe routing device, a method thereof, and a program that can reduce the processing load executed by a pipe routing computer.

A first aspect of the present disclosure is a pipe routing device for setting pipe routes of a plurality of pipes in plant equipment, wherein the pipes are arranged in parallel based on information on the start and end of the plurality of pipes. and a group creation unit for grouping the pipes, and for the parallelization, setting a common route that a plurality of the pipes belonging to the same group pass in common, and using the common route, pipes of the pipes belonging to the same group a parallel pipe route setting unit that determines a route, the group creation unit includes a region setting unit that sets a spatial region based on information on the beginning and end of the pipe, and the spatial region for the plurality of pipes. a pipe selection unit that selects the pipes to be parallelized based on an overlap index that evaluates the degree of overlap of the pipes, and the overlap index is the length of each side in the overlapping area of the space area of the plurality of pipes It is a pipe routing device which is a value calculated using the sum of the axial lengths obtained by adding the lengths.
A second aspect of the present disclosure is a pipe routing device for setting pipe routes of a plurality of pipes in plant equipment, wherein the pipes are arranged in parallel based on information on the beginning and end of the plurality of pipes. and a group creation unit for grouping, in parallelization, setting a common route that a plurality of the pipes belonging to the same group pass in common, and using the common route, the pipe route of each pipe belonging to the same group and a parallel pipe route setting unit that determines the above, and the group creation unit includes a region setting unit that sets a spatial region based on information on the beginning and end of the pipe, and the spatial region for the plurality of pipes. and a pipe selection unit that selects the pipes to be parallelized based on an overlap index that evaluates the degree of overlap, and the group creation unit groups combinations of pipes whose overlap index is equal to or greater than a predetermined threshold. It is a piping routing device that selects and groups.
A third aspect of the present disclosure is a pipe routing device for setting pipe routes of a plurality of pipes in plant equipment, wherein the pipes are arranged in parallel based on information on the beginning and end of the plurality of pipes. and a group creation unit for grouping, in parallelization, setting a common route that a plurality of the pipes belonging to the same group pass in common, and using the common route, the pipe route of each pipe belonging to the same group and a parallel pipe route setting unit that determines the above, and the group creation unit includes a region setting unit that sets a spatial region based on information on the beginning and end of the pipe, and the spatial region for the plurality of pipes. a pipe selection unit that selects the pipes to be parallelized based on a duplication index that evaluates the degree of overlap, wherein the parallel pipe route setting unit represents one of the pipes belonging to the same group. A representative pipe selection unit that selects a pipe, a preceding route setting unit that sets the route of the representative pipe as a preceding route, and the preceding route and the starting and ending positions of pipes other than the representative pipe belong to the same group. a common route setting unit that sets the common route by adjusting the starting and ending ends and the route width of the preceding route based on the diameter of each of the pipes and the distance between the pipes arranged in parallel; and a pipe route setting unit that sets routes of pipes belonging to the same group using a common route.
A fourth aspect of the present disclosure is a pipe routing device for setting pipe routes of a plurality of pipes in plant equipment, wherein the pipes are arranged in parallel based on information on the beginning and end of the plurality of pipes. and a group creation unit for grouping, in parallelization, setting a common route that a plurality of the pipes belonging to the same group pass in common, and using the common route, the pipe route of each pipe belonging to the same group A parallel piping route setting unit that determines a route, a search plane setting unit that sets a plurality of horizontal route search planes for route search in the virtual space of plant equipment, and interference with obstacles on the route search plane Horizontal routing for performing routing in the horizontal direction while avoiding, and horizontal routing for the plurality of route search planes while avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. a piping route setting unit that performs vertical routing that connects horizontal routes set by each other and sets a three-dimensional piping route, wherein the piping route setting unit includes A space in which the pipe can be arranged in the vertical direction is specified in a virtual plane obtained by projecting obstacles existing between the route search planes onto a common horizontal plane, and the vertical routing is performed so as to pass through the space. It is a device.
A fifth aspect of the present disclosure is a pipe routing device for setting pipe routes of a plurality of pipes in plant equipment, wherein the pipes are arranged in parallel based on information on the beginning and end of the plurality of pipes. and a group creation unit for grouping, in parallelization, setting a common route that a plurality of the pipes belonging to the same group pass in common, and using the common route, the pipe route of each pipe belonging to the same group A parallel piping route setting unit that determines a route, a search plane setting unit that sets a plurality of horizontal route search planes for route search in the virtual space of plant equipment, and interference with obstacles on the route search plane Horizontal routing for performing routing in the horizontal direction while avoiding, and horizontal routing for the plurality of route search planes while avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. a piping route setting unit that performs vertical routing that connects the horizontal routes set by In the steel frame model of the facility, the height range in the vertical direction where the pipe can be arranged is specified on the steel frame upper surface and the steel frame lower surface, and according to the occupancy rate of interfering objects within the specified height range, within the height range is a piping routing device that sets the route search plane to
A sixth aspect of the present disclosure is a pipe routing device for setting pipe routes of a plurality of pipes in plant equipment, wherein the pipes are arranged in parallel based on information on the beginning and end of the plurality of pipes. and a group creation unit for grouping, in parallelization, setting a common route that a plurality of the pipes belonging to the same group pass in common, and using the common route, the pipe route of each pipe belonging to the same group A parallel piping route setting unit that determines a route, a search plane setting unit that sets a plurality of horizontal route search planes for route search in the virtual space of plant equipment, and interference with obstacles on the route search plane Horizontal routing for performing routing in the horizontal direction while avoiding, and horizontal routing for the plurality of route search planes while avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. a piping route setting unit that performs vertical routing that connects the horizontal routes set by In the piping routing device, the width and height of the section of the piping route can be changed.
A seventh aspect of the present disclosure is a pipe routing device for setting pipe routes of a plurality of pipes in plant equipment, wherein the pipes are arranged in parallel based on information on the beginning and end of the plurality of pipes. and a group creation unit for grouping, in parallelization, setting a common route that a plurality of the pipes belonging to the same group pass in common, and using the common route, the pipe route of each pipe belonging to the same group A parallel piping route setting unit that determines a route, a search plane setting unit that sets a plurality of horizontal route search planes for route search in the virtual space of plant equipment, and interference with obstacles on the route search plane Horizontal routing for performing routing in the horizontal direction while avoiding, and horizontal routing for the plurality of route search planes while avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. a piping route setting unit that performs vertical routing that connects the horizontal routes set by A condition for limiting the bending direction of the pipe route is given based on the relationship between and, and the pipe route setting unit is a pipe routing device that transitions between the vertical routing and the horizontal routing according to the condition. .
An eighth aspect of the present disclosure is a pipe routing device for setting pipe routes of a plurality of pipes in plant equipment, wherein the pipes are arranged in parallel based on information on the beginning and end of the plurality of pipes. and a group creation unit for grouping, in parallelization, setting a common route that a plurality of the pipes belonging to the same group pass in common, and using the common route, the pipe route of each pipe belonging to the same group A parallel piping route setting unit that determines a route, a search plane setting unit that sets a plurality of horizontal route search planes for route search in the virtual space of plant equipment, and interference with obstacles on the route search plane a piping route setting unit that sets horizontal routing in which routing is performed in a horizontal direction while avoiding obstacles, wherein the piping route setting unit runs straight in a direction from a starting end to a terminal end in the horizontal routing, thereby colliding with an obstacle. Then, if a loop is detected, it is most likely to reach the end of the detected loop. The pipe routing device repeats a step of identifying a nearby bend point as a relay point, and using the identified relay point as a new starting point to move straight toward the terminal end.
A ninth aspect of the present disclosure is a pipe routing device for setting pipe routes of a plurality of pipes in plant equipment, wherein the pipes are arranged in parallel based on information on the beginning and end of the plurality of pipes. and a group creation unit for grouping, in parallelization, setting a common route that a plurality of the pipes belonging to the same group pass in common, and using the common route, the pipe route of each pipe belonging to the same group A parallel piping route setting unit that determines a route, a search plane setting unit that sets a plurality of horizontal route search planes for route search in the virtual space of plant equipment, and interference with obstacles on the route search plane a piping route setting unit that sets horizontal routing in which routing is performed in a horizontal direction while avoiding obstacles, wherein the piping route setting unit runs straight in a direction from a starting end to a terminal end in the horizontal routing, thereby colliding with an obstacle. As a result, when there are a plurality of bending points, the non-adjacent bending points It is a piping routing device that creates a connecting bypass route.

A tenth aspect of the present disclosure is a piping routing method for setting piping routes of a plurality of pipes in plant equipment, wherein the piping that parallelizes the piping route is selected based on information on the start and end of the plurality of pipes. In the group creation step for grouping and the parallelization, a common route through which a plurality of the pipes belonging to the same group commonly pass is set, and the common route is used to route the pipes belonging to the same group. The computer executes a parallel piping route setting step of determining the parallel piping route setting step, and the group creating step includes an area setting step of setting a spatial area based on information on the beginning and end of the piping, and the space for the plurality of piping and a pipe selection step of selecting the pipes to be parallelized based on an overlap index for evaluating the degree of overlapping of the regions, wherein the overlap index is the length of each side of the plurality of pipes in the overlap region of the spatial region. It is a pipe routing method that is a value calculated using the sum of the axial lengths that are the sum of the lengths.
An eleventh aspect of the present disclosure is a pipe routing method for setting pipe routes of a plurality of pipes in plant equipment, wherein the pipe routes are parallelized based on information on the start and end of the plurality of pipes. A group creation step of grouping pipes, and in the parallelization, setting a common route through which a plurality of the pipes belonging to the same group commonly pass, and using the common route, pipes of each pipe belonging to the same group. A parallel piping route setting step of determining a route is executed by a computer, and the group creation step includes an area setting step of setting a spatial area based on information on the beginning and end of the pipe, and a plurality of the pipes. a pipe selection step of selecting the pipes to be parallelized based on an overlap index that evaluates the degree of overlapping of spatial regions, and the group creation step selects a combination of pipes whose overlap index is equal to or greater than a predetermined threshold. This is a piping routing method for selecting and grouping as a group.
A twelfth aspect of the present disclosure is a pipe routing method for setting pipe routes of a plurality of pipes in plant equipment, wherein the pipe routes are parallelized based on information on the start and end of the plurality of pipes. A group creation step of grouping pipes, and in the parallelization, setting a common route through which a plurality of the pipes belonging to the same group commonly pass, and using the common route, pipes of each pipe belonging to the same group. A parallel piping route setting step of determining a route is executed by a computer, and the group creation step includes an area setting step of setting a spatial area based on information on the beginning and end of the pipe, and a plurality of the pipes. a pipe selection step of selecting the pipes to be arranged in parallel based on an overlap index that evaluates the degree of overlapping of spatial regions, and the parallel pipe route setting step selects one of the pipes belonging to the same group. as a representative pipe, a preceding route setting step of setting the route of the representative pipe as a preceding route, the preceding route, the start and end positions of pipes other than the representative pipe, and the same group and a common route setting step of setting the common route by adjusting the starting end and the terminal end and the route width of the preceding route based on the diameter of each of the pipes belonging to and the distance between the pipes arranged in parallel. and a pipe route setting step of setting a route for each pipe belonging to the same group using the common route.
A thirteenth aspect of the present disclosure is a pipe routing method for setting pipe routes of a plurality of pipes in plant equipment, wherein the pipe routes are parallelized based on information on the start and end of the plurality of pipes. A group creation step of grouping pipes, and in the parallelization, setting a common route through which a plurality of the pipes belonging to the same group commonly pass, and using the common route, pipes of each pipe belonging to the same group. A parallel piping route setting process for determining a route, a search plane setting process for setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment, and interference with obstacles on the route search plane. and horizontal routing on a plurality of route search planes while avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. a pipe route setting step of setting a three-dimensional pipe route by performing vertical routing for connecting horizontal routes set by routing, and the pipe route setting step is performed by a computer; specifying a space in which the pipe can be arranged in a vertical direction within a virtual plane obtained by projecting obstacles existing between the plurality of route search planes onto a common horizontal plane, and performing the vertical routing so as to pass through the space; It is a piping routing method to do.
A fourteenth aspect of the present disclosure is a pipe routing method for setting pipe routes of a plurality of pipes in plant equipment, wherein the pipe routes are parallelized based on information on the start and end of the plurality of pipes. A group creation step of grouping pipes, and in the parallelization, setting a common route through which a plurality of the pipes belonging to the same group commonly pass, and using the common route, pipes of each pipe belonging to the same group. A parallel piping route setting process for determining a route, a search plane setting process for setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment, and interference with obstacles on the route search plane. and horizontal routing on a plurality of route search planes while avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. a pipe route setting step of setting a three-dimensional pipe route by performing vertical routing for connecting horizontal routes set by routing, and the search plane setting step is performed by a computer; , in the steel frame model of the plant equipment, a height range in the vertical direction in which the pipe can be arranged on the upper surface of the steel frame and the lower surface of the steel frame is specified, and the height is In the piping routing method, the route search plane is set within a wide range.
A fifteenth aspect of the present disclosure is a pipe routing method for setting pipe routes of a plurality of pipes in plant equipment, wherein the pipe routes are parallelized based on information on the start and end of the plurality of pipes. A group creation step of grouping pipes, and in the parallelization, setting a common route through which a plurality of the pipes belonging to the same group commonly pass, and using the common route, pipes of each pipe belonging to the same group. A parallel piping route setting process for determining a route, a search plane setting process for setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment, and interference with obstacles on the route search plane. and horizontal routing on a plurality of route search planes while avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. a pipe route setting step of setting a three-dimensional pipe route by performing vertical routing for connecting the horizontal routes set by the routing, and performing the pipe route setting step; The width and height of the cross section of the piping route to be set is a piping routing method that can be changed.
A sixteenth aspect of the present disclosure is a piping routing method for setting piping routes of a plurality of pipes in plant equipment, wherein the piping routes are parallelized based on information on the start and end of the plurality of pipes. A group creation step of grouping pipes, and in the parallelization, setting a common route through which a plurality of the pipes belonging to the same group commonly pass, and using the common route, pipes of each pipe belonging to the same group. A parallel piping route setting process for determining a route, a search plane setting process for setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment, and interference with obstacles on the route search plane. and horizontal routing on a plurality of route search planes while avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. a pipe route setting step of setting a three-dimensional pipe route by performing vertical routing for connecting the horizontal routes set by the routing to each other; Based on the relationship between the lateral width and the height, a condition for limiting the bending direction of the pipe route is given, and the pipe route setting step is a pipe routing that transitions between the vertical routing and the horizontal routing according to the condition. The method.
A seventeenth aspect of the present disclosure is a pipe routing method for setting pipe routes of a plurality of pipes in plant equipment, wherein the pipe routes are parallelized based on information on the start and end of the plurality of pipes. A group creation step of grouping pipes, and in the parallelization, setting a common route through which a plurality of the pipes belonging to the same group commonly pass, and using the common route, pipes of each pipe belonging to the same group. A parallel piping route setting process for determining a route, a search plane setting process for setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment, and interference with obstacles on the route search plane. A computer executes a piping route setting step of setting horizontal routing in which routing is performed in the horizontal direction while avoiding obstacles by going straight in the direction from the start end to the end in the horizontal routing When it hits an object, it advances by the right method in which the right side contacts the obstacle or the left method in which the left side contacts the obstacle, and as a result, when a loop is detected, the detected loop is This is a pipe routing method that repeats a step of identifying a bend point closest to an end as a relay point, and using the identified relay point as a new starting point to move straight toward the end.
An eighteenth aspect of the present disclosure is a pipe routing method for setting pipe routes of a plurality of pipes in plant equipment, wherein the pipe routes are parallelized based on information on the start and end of the plurality of pipes. A group creation step of grouping pipes, and in the parallelization, setting a common route through which a plurality of the pipes belonging to the same group commonly pass, and using the common route, pipes of each pipe belonging to the same group. A parallel piping route setting process for determining a route, a search plane setting process for setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment, and interference with obstacles on the route search plane. A computer executes a piping route setting step of setting horizontal routing in which routing is performed in the horizontal direction while avoiding obstacles by going straight in the direction from the start end to the end in the horizontal routing Upon hitting an object, it proceeds in a right handed manner with the right hand touching the obstacle or a left handed hand with the left hand touching the obstacle, so that when there are multiple turning points, the non-adjacent turns are A piping routing method that creates a bypass route that connects points.

A nineteenth aspect of the present disclosure is a program for causing a computer to function as the pipe routing device.

Advantageous Effects of Invention According to the present disclosure, it is possible to reduce the processing load executed by a computer in piping routing.

1 is a schematic configuration diagram showing an example of a hardware configuration of a pipe routing device according to an embodiment of the present disclosure; FIG. 1 is a functional block diagram showing an example of functions possessed by a pipe routing device according to an embodiment of the present disclosure; FIG. FIG. 5 is a diagram for explaining a spatial region in group selection processing executed by a group creation unit according to an embodiment of the present disclosure; FIG. FIG. 11 is a diagram for explaining duplication indexes in group selection processing executed by a group creating unit according to an embodiment of the present disclosure; FIG. FIG. 11 is a diagram for explaining duplication indexes in group selection processing executed by a group creating unit according to an embodiment of the present disclosure; FIG. FIG. 11 is a diagram for explaining duplication indexes in group selection processing executed by a group creating unit according to an embodiment of the present disclosure; FIG. FIG. 11 is a diagram for explaining duplication indexes in group selection processing executed by a group creating unit according to an embodiment of the present disclosure; FIG. 6 is a flowchart showing a processing procedure as an example of pipe selection processing executed by a group creating unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining common route setting processing by a common route setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining common route setting processing by a common route setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining common route setting processing by a common route setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining common route setting processing by a common route setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining common route setting processing by a common route setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining route setting processing for each pipe using a common route by a pipe route setting unit of a parallel pipe route setting unit according to an embodiment of the present disclosure; FIG. 4 is a diagram for explaining a route search plane set by a search plane setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining horizontal routing by a pipe route setting unit of a single pipe route setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining horizontal routing by a pipe route setting unit of a single pipe route setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining horizontal routing by a pipe route setting unit of a single pipe route setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining horizontal routing by a pipe route setting unit of a single pipe route setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining horizontal routing by a pipe route setting unit of a single pipe route setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining horizontal routing by a pipe route setting unit of a single pipe route setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining vertical routing by a pipe route setting unit of a single pipe route setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining vertical routing by a pipe route setting unit of a single pipe route setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining vertical routing by a pipe route setting unit of a single pipe route setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining vertical routing by a pipe route setting unit of a single pipe route setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining vertical routing by a pipe route setting unit of a single pipe route setting unit according to an embodiment of the present disclosure; FIG. 5 is a diagram for explaining vertical routing by a pipe route setting unit of a single pipe route setting unit according to an embodiment of the present disclosure; 4 is a flow chart showing an example of a processing procedure of a piping routing method according to an embodiment of the present disclosure; 6 is a flowchart showing an example of a processing procedure of routing processing for parallel pipes according to an embodiment of the present disclosure; 4 is a flowchart showing an example of a processing procedure of routing processing for a single pipe according to an embodiment of the present disclosure;

A pipe routing device, its method, and a program according to an embodiment of the present disclosure will be described below with reference to the drawings.

A pipe routing device 1 according to an embodiment of the present disclosure is, for example, a device that automatically routes a large number of pipes installed in plant equipment such as a power plant. FIG. 1 is a schematic configuration diagram showing an example of the hardware configuration of a pipe routing device 1 according to this embodiment. As shown in FIG. 1, the pipe routing device 1 functions as, for example, a CPU 11, an auxiliary storage device 12 for storing programs executed by the CPU 11 and data referred to by the programs, and a work area when each program is executed. It includes a main memory device 13 for data processing, a communication interface 14 for connecting to a network, an input section 15, a display section 16, and the like. These units are connected via a bus 18, for example. Examples of the auxiliary storage device 12 include magnetic disks such as HDDs (Hard Disk Drives), magneto-optical disks, and semiconductor memories such as SSDs (Solid State Drives).

A series of processes for realizing various functions to be described later are stored in the auxiliary storage device 12 in the form of a program (for example, a piping routing program), for example, and the CPU 11 reads this program into the main storage device 13. , various functions are realized by executing information processing and arithmetic processing. The program is pre-installed in the auxiliary storage device 12, provided in a state stored in another computer-readable storage medium, or delivered via wired or wireless communication means. etc. may be applied. Computer-readable storage media include magnetic disks, magneto-optical disks, CD-ROMs, DVD-ROMs, semiconductor memories, and the like.

In FIG. 1, a communication interface 14 is connected to a network such as the Internet or a LAN (Local Area Network) and serves as an interface with the network. The input unit 15 is a user interface, such as a keyboard, mouse, touch panel, etc., for the user to perform an input operation on the pipe routing device 1 . The display unit 16 has a display screen configured by, for example, an LCD (Liquid Crystal Display) or the like, and displays results of piping routing and various models received by the communication interface 14 (for example, three-dimensional CAD data of plant equipment, steel frame model, etc.).

FIG. 2 is a functional block diagram showing an example of the functions of the pipe routing device 1 according to this embodiment. As shown in FIG. 2, the pipe routing device 1 includes, for example, a plant database 20, a pipe database 21, a group creating section 30, and a routing section 40.

In the case of piping routing, it is preferable to parallelize the piping because it is possible to standardize the piping support and improve the efficiency of the piping work. Therefore, in the present embodiment, adjacent pipes are arranged in parallel as a common route to route the pipes.
At this time, in the method of adding another pipe in parallel to the single route in order to make it a parallel route later, the route route is already blocked and the parallel route is unlikely to be guaranteed. This is because, when performing efficient routing, the route that passes through the shortest distance tends to follow obstacles, and there are many cases where the piping route that was set as a single route earlier is only open on one side, which is the opposite side of the obstacle. It's for. Therefore, the pipe routing device 1 according to the present embodiment performs routing by a "common route" having a thick cross-sectional dimension in which a plurality of pipes are arranged at predetermined intervals in advance, and then provides a branch point at the end of the common route. A method of determining a single route (branching route) is adopted.

The plant database 20 stores various data relating to various plant facilities to be subjected to piping routing. In this embodiment, a power plant is targeted, for example, three-dimensional CAD data of a power plant, a steel frame model, and the like. Examples of power plants include thermal power plants, geothermal power plants, biomass power plants, power plants that use direct power generation such as fuel cells, and power plants that use renewable energy. It should be noted that the target plant for pipe routing is not limited to a power plant, and may be a chemical plant, an industrial plant, or the like.

The piping database 21 stores information on a large number of piping installed in the power plant. For example, the diameter, heat insulation thickness, wall thickness, material of each pipe, allowance (clearance) provided around the pipe to avoid interference, position information (coordinates) of the start and end in the three-dimensional space of the power plant, pipe Information on the types of media in circulation (eg, steam, fuel, air for general use, water, etc.), information on the state of media (design temperature, design pressure, etc.), etc. are stored in the piping database 21 in association with identification information on the piping. .

That is, the plant database 20 and the piping database 21 store various data necessary for piping routing.
The plant database 20 and the piping database 21 do not necessarily have to be provided in the piping routing device 1, and may be configured so as to be able to obtain such information. For example, it may be provided on another device, server, or cloud connected via a communication medium and shared with a design tool other than a pipe routing device, or may be stored in various recording media such as a USB memory. may be Thus, the data storage method is not particularly limited.

The group creating unit 30 reads out information about a large number of pipes stored in the pipe database 21, and based on the start and end of each pipe, the obstacles interfere with each pipe from the start to the end in a three-dimensional space. Group pipes that parallelize pipe routes without In other words, the group creation unit 30 selects which pipes are to be arranged in parallel among a large number of pipes, and groups them. For example, the group creation unit 30 includes a region setting unit 31 that sets a spatial region based on information on the beginning and end of each pipe, and an overlap index that evaluates the degree of overlapping of the spatial regions for a plurality of pipes. and a pipe selection unit 32 for selecting pipes to be converted. The details of the processing performed by these units will be described later.

The routing unit 40 includes a parallel pipe route setting unit 50 that sets a pipe route for parallel pipes in which a plurality of pipes are arranged in parallel, and a single pipe route setting unit 60 that sets a pipe route for each pipe. Details of these units will be described later.

Next, the group selection process executed by the group creating section 30 will be described below. The following processing is realized, for example, by the CPU 11 reading out a program stored in the auxiliary storage device 12 to the main storage device 13 and executing information processing/arithmetic processing.

For example, as shown in FIG. 3 , the region setting unit 31 sets a rectangular parallelepiped such that the starting end S and the terminal end G of the pipe are each at an angle, and further adds a margin MG to the rectangular parallelepiped to set the rectangular parallelepiped as the spatial region. set. Here, for convenience of explanation, FIG. 3 shows a two-dimensional (plane) space. The margin MG is a permissible range in which even if the pipe regions are slightly separated from each other, they can be brought close to each other and arranged in parallel.

It is conceivable that parallelization of pipes with overlapping regions in the spatial region is possible. Moreover, even among such pipes, the ease of parallelization varies depending on the degree of superimposition of the spatial regions. For example, consider three overlapping patterns as shown in FIGS. In this case, the overlapping area between the spatial areas C and D shown in FIG. 5 is larger than the overlapping area between the spatial areas A and B shown in FIG. It can be seen that the pipes that define the spatial region C and the spatial region D are preferable for parallelization. 5 and the overlap region between the spatial regions E and F shown in FIG. Although it is equivalent to the overlapping region with the spatial region D, the sum of the lengths of the sides of the overlapping region (hereinafter, the sum of the lengths of the sides is referred to as the “sum of axial lengths”) is the overlap of the spatial region E and the spatial region F area is larger. In this case, it can be expected that the longer the sum of axial lengths, the parallelization of longer piping routes. Therefore, it can be said that it is preferable to group pipes to be arranged in parallel by paying attention to the sum of axial lengths.

From the above, the pipe selection unit 32 focuses on the volume of the overlapping region of the spatial regions of the plurality of pipes, or focuses on the sum of the axial lengths of the overlapping regions of the spatial regions, and calculates the overlap index of the combination of each pipe. Select pipes to group. In this embodiment, in order to parallelize a longer piping route, piping to be parallelized is selected by paying attention to the sum of axial lengths of overlapping regions of spatial regions of a plurality of pipes. As a more specific example, the pipe selection unit 32 has the following evaluation formula, calculates a duplication index for each combination of pipes using this evaluation formula, and groups based on the calculated duplication index. Select piping.

Duplication index = AL_Com x OR ^K (1)
Here, K is a constant equal to or greater than 0 for adjusting the balance between the evaluation based on the sum of axial lengths (AL_Com) and the evaluation based on the overlap rate (OR), and is empirically set to an appropriate value. In the case of K=0, only AL_Com (absolute distance) is used for evaluation, but only AL_Com (absolute distance) may be used when the variation in each route length is small or depending on the characteristics of the distribution of start and end coordinates. In some cases, it may be preferable to evaluate using

FIG. 7 is a diagram for explaining each parameter included in the duplication index evaluation formula. Here, a space area A set by the pipe A and a space area B set by the pipe B are illustrated and explained. Also, in FIG. 7, for convenience of explanation, it is shown as two-dimensional (plane), but in reality it is a three-dimensional space where height information (Z-axis direction) is added to this information, so it is expressed as three-dimensional in the evaluation formula. .

In the formula (1), each parameter is as follows.
AL_Com = Com_dx + Com_dy + Com_dz (2)
OR = AL_Com/AL_max (3)

For example, AL_Com is the sum of axial lengths Com_dx+Com_dy+Com_dz in the overlapping area Com of the plurality of spatial areas A and B, as shown in FIG.
OR is the ratio of axial length sums. Here, AL_max is the maximum value of the sum of the axial lengths of the spatial regions A and B forming the overlapping region Com. For example, comparing the sum of axial lengths AL_A (=A_dx+A_dy+A_dz) in spatial region A with the sum of axial lengths AL_B (=B_dx+B_dy+B_dz) in spatial region B, the larger sum of axial lengths is AL_max. Become. For example, when AL_A>AL_B, AL_A becomes AL_max.

According to the evaluation formula represented by the above formula (1), OR is a value less than 1, so the value OR K of the second term, which is a power of the index K (K≧0) with ^OR as the base, is , 1 or less. On the other hand, since AL_Com is a value that reflects the length as it is, in the evaluation formula (1), the more K is increased to 1, 2, 3, . Thus, the overlap index in the present embodiment is a value that is comprehensively evaluated after adjusting the balance between the ratio (OR) of the sum of axial lengths and the sum of the lengths of the sides of the overlapping region (sum of axial lengths). It is

The pipe selection unit 32 assumes an arbitrary combination of a large number of pipes to be routed, and calculates the duplication index for each combination. Then, for example, when the duplication index is equal to or greater than a predetermined threshold value, the combination of pipes is grouped as a group to be parallelized.
Alternatively, the upper limit of the number of pipes to be arranged in parallel may be determined in advance, and the first arbitrary combination of pipes may be determined based on this number. For example, when 10 pipes are parallelized, 10 pipes are arbitrarily selected from a large number of pipes to be routed, the duplication index is calculated for the selected pipes, and parallelization is performed You may decide whether or not

An example of the pipe selection process executed by the pipe selection unit 32 will be described below with reference to FIG. 8 . FIG. 8 is a flowchart showing a processing procedure as an example of pipe selection processing. In addition, when the pipes which are not parallelized among the pipes to be routed are set in advance, the following processing is performed for all the pipes excluding the pipes which are not parallelized. The following processing is realized, for example, by the CPU 11 reading out a program stored in the auxiliary storage device 12 to the main storage device 13 and executing information processing/arithmetic processing.

First, the maximum number Nmax for parallelization is set (SA1). For example, when parallelizing up to 10 pipes, Nmax=10, and n is set to 10 as the parallel number of pipes for calculating the duplication index.
Next, for all the pipes to be routed stored in the pipe database 21, a combination of n pipes is created in round robin (SA2). In this step, as described above, if pipes that are not to be parallelized are set in advance, those pipes are excluded from candidates for combination in the first place.

As a result, a large number of combinations of 10 pipes are generated. Subsequently, a duplication index is calculated for each combination of pipes (SA3). Next, it is determined whether or not there is a combination in which the calculated duplication index is equal to or greater than a predetermined threshold value T (SA4).

As a result, if there is a combination of overlapping indices equal to or greater than the threshold T (SA4: YES), the combination showing the maximum overlapping index is registered as a parallelization group (SA5). Subsequently, for the pipes that are not registered as a parallelization group, i.e., for all pipes except for the 10 pipes registered in step SA5, a total of n pipe combinations (that is, 10 pipes) It will be created again by chance (SA6). Then, the process proceeds to step SA3, and the duplication index is calculated for each combination of pipes. Subsequently, it is determined whether or not there is a combination whose duplication index is equal to or greater than T (SA4), and if the determination is affirmative (SA4: YES), the processes after step SA5 are repeated in the same manner as described above.

As a result, a combination of n pipes whose duplication index is equal to or greater than the threshold value T is registered as needed. In this way, by repeating the processing of steps SA3 to SA6 several times, in step SA4, when there is no combination of pipes whose overlapping index is equal to or greater than the threshold value T (SA4: NO), the process proceeds to step SA7, and n Set a value that is one less than the current set value. That is, step SA7 is a step of stepwise decreasing the parallel number of pipes for which the duplication index is calculated. As a result, for example, 9 is set to n. Subsequently, it is determined whether or not the newly set n is smaller than the minimum value Nmin of the combined number of pipes (SA8). Here, the minimum value Nmin of the number of combinations is an integer larger than 1, and is a value appropriately set by design. For example, when the minimum value Nmin of the number of combinations is set to 2, it means that up to 2 lines are parallelized.

In step SA8, if n is greater than or equal to Nmin (SA8: NO), move to step SA6, target all pipes not registered as a parallelization group, and combine n pipes (currently 9 pipes) is created by round-robin, and the process returns to step SA3. As a result, the processing of steps SA3 to SA6 is repeatedly performed until there is no combination of nine pipes exhibiting a duplication index equal to or greater than the threshold T for the nine combinations. A combination of pipes is registered at any time (SA5). Then, in step SA4, when there is no combination of nine pipes showing a duplication index equal to or greater than the threshold value T (SA4: NO), the process proceeds to step SA7, and a value one smaller than n (e.g., 8) is set. A combination of n pipes whose overlap index is equal to or greater than the threshold value T is registered as needed (SA5). Then, the above process is repeated until n=Nmin, and if it is determined in step SA8 that n is smaller than Nmin, the process ends.

By performing the above process, for example, as a parallelization group, a combination of 10 (=Nmax) pipes whose overlap index is equal to or greater than the threshold value T, a combination of 9 pipes, . . . 2 (=Nmin) pipes will be registered together with the duplication index.

After the parallelization groups are set in this manner, the parallel piping route setting unit 50 of the routing unit 40 subsequently sets common routes and the like for each parallelization group.
At this time, the parallel pipe route setting unit 50 sets a common route for each group based on the priority determined based on the number of pipes belonging to the same group and the duplication index. More specifically, the higher the number of pipes belonging to the same group (parallel number), the higher the priority, and the higher the duplication index, the higher the priority.
A route search is performed in order from a parallel group with a high priority, and then a single route search is performed. In general, a root group with a large number of parallels tends to occupy a large space area. Also, root groups with higher duplication indices tend to have longer roots and occupy larger spatial regions. Since it is thought that a route that occupies a larger spatial area has a higher probability of encountering an interfering object that should be avoided, it is expected that the probability that routes will not be routed due to interference between routes will be reduced by following the priority order.
The parallel piping route setting process executed by the parallel piping route setting unit 50 will be described below with reference to the drawings shown in FIGS. 9 to 13 . The following processing is realized by the CPU 11 reading and executing a program stored in the auxiliary storage device 12 or the like.

The parallel pipe route setting unit 50 includes a representative pipe selection unit 51, a preceding route setting unit 52, a common route setting unit 53, and a pipe route setting unit 54, as shown in FIG.
The representative pipe selection unit 51 selects one of pipes belonging to the same group as a representative pipe. The representative pipe selection unit 51 selects, for example, the pipe having the shortest sum of axial lengths in the spatial region among the pipes belonging to the same group as the representative pipe. Alternatively, a pipe having the largest diameter may be selected as the representative pipe.

The preceding route setting unit 52 sets the route of the representative pipe as the preceding route. That is, the preceding route setting unit 52 sets a route that connects the leading end and the trailing end of the representative pipe so as not to interfere with obstacles in the plant. For this routing method, for example, the processing of the single pipe route setting unit 60, which will be described later, can be used. Therefore, the details of the routing will be explained in the routing processing by the single pipe route setting unit 60. FIG. It should be noted that the routing process is not limited to the routing process described later, and the preceding route may be set using other known routing process.

The common route setting unit 53 sets the preceding route, which is the route of the representative pipe, the positions of the beginning and end of the pipes other than the representative pipe, the diameter of each pipe belonging to the same group, and the distance between the pipes arranged in parallel. A common route is determined by adjusting the start and end and the width of the preceding route based on and.

Common route setting processing by the common route setting unit 53 will be described below with reference to the drawings shown in FIGS. 9 to 13 . In addition, in the above-described group creation unit 30, the case of creating a group consisting of a maximum of 10 pipes has been exemplified and explained, but for the sake of convenience, the case of parallelizing two pipes will be exemplified here. explain. Even if the number of pipes belonging to the same group is large, a common route can be set according to the same procedure.

In this embodiment, for example, a case in which two pipes (pipe α and pipe β) are parallelized will be described. First, it is assumed that the pipes α and β belong to the same group and the pipe α is selected as the representative pipe. For example, as shown in FIG. 9, it is assumed that the preceding route setting unit 52 sets a preceding route Pr that connects the starting end αs and the terminal end αg of the pipe α. In addition, although FIG. 9 shows the XY plane for convenience of explanation, it is actually a three-dimensional space. That is, the plan views shown in FIGS. 9 to 12 show the arrangement when the leading route Pr of the representative pipe α and the starting end βs and terminal end βg of the pipe β are projected onto a common XY plane.

As shown in FIG. 10, the common route setting unit 53 draws perpendicular lines from the leading end βs and the terminal end βg of the other pipe β to the preceding route Pr. S1'. Subsequently, points S and S' are set at positions shifted by a predetermined distance along the preceding route Pr from the intersections S1 and S1' in the direction in which the preceding route Pr becomes shorter (see FIG. 11). This process is for securing the space required for setting the branch route of each pipe from the start (or end) of the common route to the start (or end) of each pipe. The distance is about 8 to 10 times the diameter of the
Subsequently, the common route setting unit 53 shortens the preceding route Pr from the intersections S1, S1' to the points S, S', as shown in FIG. As a result, the starting point S and the terminal point S' of the common route are determined.

Next, the common route setting unit 53 determines the width of the common route. The width of the common route is the sum of the diameter of each pipe to be arranged in parallel (the diameter considering the insulation thickness for pipes to be insulated) and the interval between the pipes to be arranged in parallel.

Subsequently, the common route setting unit 53 determines the parallel order of pipes on the common route.
The parallel order of the pipes is such that when branching routes are connected from the starting end S and the terminal end S' of the common route to the starting ends of the plurality of pipes belonging to the group, the twist between the branching routes is minimized.
An example of a method for determining the parallel order of pipes will be described below. In the following explanation, for convenience of explanation, a case where pipes A to C are arranged in parallel will be exemplified.

First, the total sum of the axial lengths (hereinafter referred to as the "starting end side total") is calculated, assuming that the starting ends of the pipes A to C and the starting end S of the common route are assumed to be the starting ends. For example, a rectangular parallelepiped is set so that the starting end of the pipe A and the starting end S of the common route are each at an angle, and the sum of the lengths of the sides of the rectangular parallelepiped is the sum of the axial lengths of the starting end of the pipe A. Similarly, for the pipes B and C, the sum of axial lengths on the starting end side is calculated, and the sum of these values is the total starting end side.
Similarly, the total sum of the axial lengths (hereinafter referred to as the "terminus side total") is calculated assuming that the terminal end S' of the common route and the terminal ends of the pipes A to C are assumed to be the starting ends.
Subsequently, the total sum on the starting end side and the total sum on the terminal side are compared, and the end with the smaller value is specified as the target end. Hereinafter, the case where the end S′ is identified as the end of interest because the end-side total is smaller than the starting end-side sum will be described as an example, and subsequent processing will be described with reference to FIG. 12 .

As shown in FIG. 12, the Y-axis is the axis passing through the terminal end S' of the common route and extending in the traveling direction of the common route, the X-axis is the axis passing through the terminal end S' of the shared route and perpendicular to the Y-axis, and the terminal S' The axis passing through and orthogonal to the XY plane (the direction penetrating the plane of the paper) is defined as the Z axis.
Subsequently, in the XYZ coordinate space, a directional vector VA from the terminal end S' (that is, the origin of the XYZ coordinates) to the terminal end Ag of the pipe A, a directional vector VB from the terminal end S' to the terminal end Bg of the pipe B, and the terminal end S' to the end Cg of the pipe C are generated, and the angle of rotation about the Z axis when each direction vector is projected onto the XY plane is calculated. Then, the parallel order is determined in order of the magnitude of the rotation angle. In the case of FIG. 12, the rotation angle θc of the pipe C, the rotation angle θa of the pipe A, and the rotation angle θb of the pipe B are larger in order (θc<θa<θb). From the left side of the paper, the order is pipe B, pipe A, and pipe C so that the torsion of the pipes is minimized.

Subsequently, the common route setting unit 53 repeats routing of the common route connecting the start end S to the end end S' based on the determined common route width. For this routing method, for example, a routing process performed by a single pipe route setting unit 60, which will be described later, can be adopted. Also, other known routing processing may be used. As a result, as shown in FIG. 13, a common route CP connecting the start point S to the end point S' while avoiding obstacles is set. If interference with an obstacle that was not detected on the preceding route Pr is found during routing of the common route, new routing is performed to avoid this obstacle, or the obstacle can be avoided. The positions of the starting point S and the terminal point S' of the common route may be adjusted by searching for the nearest point. Thus, the common route CP is not necessarily the same route as the preceding route Pr.

When the common route CP is set in this way, branch routes from the start S of the common route CP to the start ends αs and βs of the pipes and from the end S′ of the common route CP to the ends αg and βg of the pipes A branch route is set for each, and as shown in FIG. 14, a pipe route is set for each pipe (pipe α, pipe β). The branch routes are created based on the order in which the parallel pipes are arranged, in the same order as the preceding route selection criteria, in ascending order of the sum of axial lengths or in ascending order of pipe diameter.

In this way, when all the piping routes belonging to one parallelized group are set, routing of the common route and branch routes of each piping is performed for the group with the next highest priority. . After the routing is completed for all groups in this manner, the single pipe route setting unit 60 (see FIG. 2) then performs routing for each pipe.

The routing process executed by the single pipe route setting unit 60 will be described below with reference to FIGS. 15 to 26. FIG.

The single pipe route setting unit 60 routes pipes that have not been routed by the parallel pipe route setting unit 50 , that is, routes pipes that have not been selected as a group by the group creating unit 30 .

The single pipe route setting unit 60 includes a search plane setting unit 61 and a pipe route setting unit 62, as shown in FIG.

The search plane setting unit 61 sets a plurality of route search planes, which are two-dimensional horizontal planes for performing a route search in virtual space, in the height direction for a three-dimensional power plant.
In the present embodiment, the search plane setting unit 61 acquires, for example, a steel frame model among the three-dimensional models of the power plant, and sets a plurality of route search planes based on the steel frame model. Specifically, the search plane setting unit 61 identifies a steel frame whose normal vector is in the vertical direction in the steel frame model, sets a virtual horizontal plane at the height position of the surface (upper surface and lower surface) of each identified steel frame, The area distribution of the steel frame on the set virtual horizontal plane is calculated, and a predetermined number of virtual horizontal planes having a large area distribution of the steel frame are extracted.

Subsequently, the height range (vertical range) in which the pipe support device can be installed is specified from the extracted virtual horizontal plane. For example, as shown in FIG. 15, if it is the lower surface of the steel frame, the height range in which the pipe can be supported from the lower surface of the steel frame by a support device such as a hanger (the height range obtained by subtracting Hmin from the height Hmax in FIG. 15, shaded area). In addition, if it is the top surface of the steel frame, the height range where the pipe can be supported from the top surface of the steel frame by a support device such as a support (the height range obtained by subtracting Smin from the height Smax in FIG. 15, and the shaded portion) is specified. .
Then, a virtual horizontal plane is assumed in the specified height range, the occupancy rate of the interfering object on each virtual horizontal plane is calculated, and the virtual horizontal plane with a small occupancy rate of the interfering object is preferentially set as the route search plane. The route search plane consists of the pipe size (pipe diameter, heat insulation thickness for heat-insulated pipes, and the minimum distance between the pipe outer surface (heat-insulating material outer surface for heat-insulated pipes) and an obstacle ( It is set by calculating the occupancy rate of the interfering object as a surface having a thickness in the vertical direction corresponding to the clearance).

In selecting a virtual horizontal plane, a representative three-dimensional model with many horizontal planes is a floor model. Since it is not suitable as a structural member for installation and there is not necessarily a structural member (steel frame) near which a pipe support device can be installed, the floor is used preferentially as a criterion for determining the route search surface. not

After the route search plane is set in this manner, the piping route setting unit 62 performs routing using the route search plane.
The pipe route setting unit 62 performs horizontal routing in which routing is performed while avoiding interference with obstacles in the horizontal direction on the route search plane, and routing in the current route search plane while avoiding interference with obstacles on two adjacent route search planes. Then, vertical routing is performed to perform vertical routing from one to the next route search plane, and a three-dimensional piping route is set.

When routing, as indicated by the arrow in FIG. 16, the outer circumference of the obstacle may be expanded by the radius of the piping to be routed. As a result, routing can be performed without considering the diameter of the pipe.

Horizontal routing is performed by, for example, combining routes in the X-axis direction and the Y-axis direction on the horizontal plane.
For example, as shown in FIG. 17, proceed in the X direction from the starting point S, and when you hit an obstacle, move to the right (proceed so that your right hand contacts the obstacle) or left (proceed so that your left hand contacts the obstacle). advance method).

Also, if the placement of obstacles is complicated, the route may become a loop and the player may not be able to proceed. For this reason, as shown in FIG. 18, when a loop is first detected by the right or left method, a relay point C1, which is the closest turning point (point where the traveling direction changes) to the end G, is specified. Further, as shown in FIG. 19, starting from the relay point C1, the vehicle proceeds straight without changing the direction of travel, and when it hits an obstacle, proceeds by the right method and the left method, thereby creating a plurality of candidate routes.

Further, in the right method and the left method, as shown in FIG. 20, route candidates are created along the perimeter of obstacles. There is a possibility that a bypass route can be created for such a route candidate. For this reason, for example, the turning points F1 to F4 of the route candidate are specified, and a search is made to see if a shorter route candidate connecting the turning points F1 to F4 can be created. For example, in the example shown in FIG. 20, route candidate R1 connecting F1 to F3 is created as a bypass route. In the case shown in FIG. 21, route candidate R2 connecting turning points F1 and F4 is not adopted because it interferes with an obstacle.

In one route search plane, when the route to the end G cannot be searched only by horizontal routing, the piping route setting unit 62 subsequently performs vertical routing for moving to another route search plane. For example, if a plurality of route candidates are found on the route search plane PL1 and they do not reach the terminal G, a plurality of points through which vertical routing should pass are found on the route. On the route search plane PL2, horizontal routing is performed for all cases with these points as starting points, and the optimum one is selected from this group of results. Although the number of combinations is enormous, two-dimensional routing is relatively simple as a computer operation, so results can be obtained quickly. In this embodiment, for example, it is assumed that a horizontal route search plane PL1 and a route search plane PL2 are set at two height positions in a three-dimensional space of a power plant as shown in FIG. .

In vertical routing, as shown in FIG. 23, obstacles present on adjacent route search planes PL1 and PL2 and obstacles present between route search planes PL1 and PL2 are projected onto a common horizontal plane as height positions. A virtual plane PLC is set. In the virtual plane PLC, along the horizontal route set by PL1, a space without obstacles, that is, a space V in which the pipe can be developed in the vertical direction between the route search plane PL1 and the route search plane PL2 is searched and specified. and perform vertical routing so as to pass through the specified space V.
When the vertical routing is performed, horizontal routing is performed with the center point of the pipe in the space V as the starting point on the destination route search plane PL2. The example shown in FIG. 23 shows the case where the route search plane PL2 has the terminal end G, and the piping route to the terminal end G is set by performing horizontal routing from the vertical routing.

Further, as shown in FIG. 24, when shifting from vertical routing to horizontal routing, the bending direction is restricted according to the cross-sectional width of the piping route. In particular, when the width W of the route cross section is larger than the height H, as in the common route of parallelized piping shown in FIG. 25, as shown in FIG. , when transitioning from vertical routing to horizontal routing, the piping is bent in such a direction that the positional relationship of the lateral width W and the height H of the piping cross section with respect to the horizontal plane is always maintained. That is, as shown in FIG. 27, a restriction may be imposed so as not to permit bending of the route that does not maintain the positional relationship between the width W and the height H of the route section on the route search plane.

The piping route setting unit 62 creates a plurality of route candidates by performing the above horizontal routing and vertical routing, and selects one piping route from among the plurality of route candidates based on predetermined evaluation criteria. In this embodiment, for example, the evaluation criteria for finally selecting one route from a plurality of route candidates are the length of the route, the number of bends, the number of points less than the minimum section length, and the like. The final route is selected by giving the evaluation points in the above and comprehensively judging the total points of the evaluation points. Specifically, the shorter the route, the higher the evaluation, the fewer the number of bends, the higher the evaluation, and the fewer the number of turns less than the minimum section length, the higher the evaluation. Note that the minimum section length is the minimum value of the pipe bending section assuming standard parts such as elbows. The piping route setting unit 62 selects the route candidate with the highest sum of these evaluation points as the piping route. Note that these evaluation points may be weighted according to their importance.

Next, a piping routing method according to this embodiment will be described with reference to FIG. FIG. 28 is a flow chart showing an example of the processing procedure of the piping routing method according to this embodiment. The following processing is realized, for example, by the CPU 11 reading out a program stored in the auxiliary storage device 12 to the main storage device 13 and executing information processing/arithmetic processing.

First, data of many pipes stored in the pipe database 21 are obtained (SB1), and groups of pipes to be parallelized are created (SB2). This group creation process is as described with reference to FIG.
Subsequently, among the created groups, a common route is set in descending order of priority, and parallel pipe routing processing is performed to set the pipe routes of the pipes belonging to the group using the common route. (SB3). Then, when the piping routes for all groups are set in descending order of priority, routing processing for the piping not selected for the group is performed (SB4), and the processing ends.

Next, in the pipe routing method shown in FIG. 28, the parallel pipe routing processing executed at step SB3 will be described with reference to FIG. FIG. 29 is a flow chart showing an example of a processing procedure of routing processing for parallel pipes according to the present embodiment.
First, one of the pipes belonging to the same group is selected as the representative pipe (SC1), and the route of the representative pipe is set as the preceding route (SC2). This preceding route routing method is similar to the routing processing by the single pipe route setting unit 60, for example. Next, perpendicular lines are drawn from the start and end of other pipes belonging to the same group to the preceding route (SC3). The point moved by the distance is set (SC4), and then the preceding route is shortened to the set point (SC5).

Next, based on the positional relationship between the beginning and end of the shortened preceding route and the beginning and end of each pipe belonging to the group, the order of parallel pipes is determined, and the width W (see FIG. 25) of the common route is set. (SC6).

Next, with the set common route width W as a reference, routing of the common route connecting the start end to the end end is performed (SC7). This routing method is similar to the routing process performed by the single-tube route setting unit 60, for example.

Subsequently, the branch route from the start of the common route to the start of each pipe and the branch route from the end of the common route to the end of each pipe are routed, the pipe route of each pipe is set, and the process is completed (SC8 ). The route of each set pipe is stored in a storage unit (not shown).

Next, in the pipe routing method shown in FIG. 28, the single pipe routing processing executed at step SB4 will be described with reference to FIG. FIG. 30 is a flowchart showing an example of a processing procedure for routing processing for an independent pipe according to this embodiment.
First, the width and height of the piping to be routed are set (SD1). Subsequently, a plurality of route search planes for route search are set in the three-dimensional model of the power plant (SD2). A plurality of route candidates are created while performing horizontal routing and vertical routing while avoiding interference with obstacles based on the information on the start and end of the pipe (SD3). In this case, for vertical routing, routing may be performed for all route search planes to create a plurality of candidate routes.
Subsequently, the route with the highest evaluation value is selected from among the plurality of created candidate routes as the piping route (SD4), and the piping route is registered in a predetermined storage area (SD5).

As described above, according to the pipe routing device, its method, and program according to the present embodiment, in a large number of pipes, the group creation unit 30 groups pipes whose pipe routes are to be parallelized, and a plurality of pipes belonging to the same group. and a parallel pipe route setting unit 50 for setting a common route through which pipes commonly pass and using the common route to determine the pipe route of each pipe belonging to the group. In this way, a common route is set for the pipes to be parallelized, and this common route is used to route the pipes belonging to that group. Therefore, it is possible to reduce the processing load.

The pipe routing device, its method, and program described in each of the embodiments described above are grasped, for example, as follows.

A pipe routing device (1) according to the present disclosure is a pipe routing device (1) for setting a pipe route of a plurality of pipes in plant equipment, and based on information on the start and end of the plurality of pipes, A group creation unit (30) for grouping the pipes whose routes are to be parallelized, and for the parallelization, setting a common route through which the plurality of pipes belonging to the same group pass in common, and using the common route, and a parallel pipe route setting unit (50) for determining pipe routes of pipes belonging to the same group.

According to the pipe routing device (1) according to the present disclosure, a common route that is common to pipes to be parallelized is set, and routing of pipes belonging to the group is performed using this common route. It is possible to reduce the processing load executed by the computer as compared with the case where each of the above is performed.

In the pipe routing device (1) according to the present disclosure, the group creation unit (30) includes a region setting unit (31) that sets a spatial region based on information on the beginning and end of the pipe, and a plurality of pipes: a pipe selection unit (32) that selects the pipes to be parallelized based on an overlap index that evaluates the degree of overlap of the spatial regions of the above.

According to the pipe routing device (1) according to the present disclosure, a space area is set based on information on the beginning and end of pipes, and pipes to be parallelized are selected based on an overlap index that evaluates the degree of overlap of these space regions. Therefore, by grouping pipes suitable for parallelization, it is possible to lengthen the common pipe route length.

In the pipe routing device (1) according to the present disclosure, the overlap index is a value calculated using the sum of axial lengths obtained by adding the lengths of the sides of the plurality of pipes in the overlap region of the spatial region. .

According to the pipe routing device (1) according to the present disclosure, the pipes to be grouped are specified using the overlap index calculated using the axial harmony obtained by adding the lengths of the sides in the overlap region of the spatial regions. By grouping pipes that are suitable for parallelization, it is possible to lengthen the common pipe route length.

In the pipe routing device (1) according to the present disclosure, the group creation unit (30) performs grouping by selecting a combination of pipes whose duplication index is equal to or greater than a predetermined threshold as a group.

According to the pipe routing device (1) according to the present disclosure, a combination of pipes whose overlap index is equal to or greater than a predetermined threshold value is selected as a group, so pipes suitable for parallelization can be grouped. As a result, it is possible to lengthen the pipe route length that can be shared.

In the pipe routing device (1) according to the present disclosure, the parallel pipe route setting unit includes a representative pipe selection unit (51) that selects one of the pipes belonging to the same group as a representative pipe; A preceding route setting unit (52) for setting the route of as a preceding route, the preceding route, the starting and ending positions of pipes other than the representative pipe, and the diameter of each of the pipes belonging to the same group are arranged in parallel. A common route setting unit (53) for setting the common route by adjusting the starting end and the terminal end and the route width of the preceding route based on the distance between the pipes to be connected, and using the common route, the same A piping route setting unit (54) for setting a route of each piping belonging to the group.

According to the pipe routing device (1) according to the present disclosure, the representative pipe selection unit (51) selects one of the pipes belonging to the same group as the representative pipe, and the preceding route setting unit (52) selects the representative pipe is set as the preceding route, and the common route setting unit (53) sets the preceding route, the starting and ending positions of pipes other than the representative pipe, the diameter of each pipe belonging to the same group, and the pipes arranged in parallel. A common route is established by adjusting the start and end and the width of the preceding route based on the distance between them. Then, the route of each pipe using the common route is set by the pipe route setting unit (54). This makes it possible to easily set a common route, and furthermore to easily set the route of each pipe.

In the pipe routing device (1) according to the present disclosure, the representative pipe selection unit (51) selects a pipe having the shortest sum of axial lengths or a pipe having the largest diameter in the space area as a representative pipe.

According to the pipe routing device (1) according to the present disclosure, the pipe with the shortest sum of axial lengths in the spatial region or the pipe with the largest diameter is selected as the representative pipe, so that common routes can be created more smoothly and easily. can be done. In addition, the above-mentioned "diameter" is a concept including the heat insulation thickness in the case of the piping to be heat-insulated.

A pipe routing device (1) according to the present disclosure includes a search plane setting unit (61) for setting a plurality of horizontal route search planes for performing a route search in a virtual space of plant equipment, and an obstacle in the route search plane. Horizontal routing for performing routing in the horizontal direction while avoiding interference with objects, and a plurality of route searches while avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. A piping route setting unit (62) for setting a three-dimensional piping route by performing vertical routing for connecting the horizontal routes set by the horizontal routing on the plane.

According to the pipe routing device (1) according to the present disclosure, the search plane setting unit (61) sets a plurality of route search planes, which are horizontal planes for performing a route search in the virtual space of the power plant. A setting unit (62) allows horizontal routing to perform routing while avoiding interference with obstacles in the horizontal direction on the route search plane, and routing from the current route search plane to the next route while avoiding interference with obstacles on the route search plane. Vertical routing for performing vertical routing toward the search surface is performed, and a three-dimensional piping route is set.
In this way, since route search is performed without using random numbers for route search, for example, a unique result can always be obtained under the same conditions. As a result, it is possible to easily reflect the intention of the knower in the search rules and parameters based on the routing result.

In the pipe routing device (1) according to the present disclosure, the pipe route setting unit (62) routes the pipe within a virtual plane obtained by projecting obstacles existing between the plurality of route search planes onto a common horizontal plane. A space that can be arranged in the vertical direction is specified, and the vertical routing is performed so as to pass through the space.

According to the pipe routing device (1) according to the present disclosure, in a virtual plane obtained by projecting obstacles existing on a plurality of route search planes and obstacles existing between a plurality of route search planes onto a common horizontal plane, A space in which the piping can be vertically developed is specified, and vertical routing is performed so as to pass through the specified space. As a result, it is possible to easily set a vertical route for moving on the route search plane in such a manner as to reliably avoid interference with obstacles.

In the pipe routing device (1) according to the present disclosure, the search plane setting unit (61) specifies a vertical height range in which the pipe can be arranged on the steel frame upper surface and the steel frame lower surface in the steel frame model of the plant equipment. Then, the route search plane is set within the height range according to the occupancy rate of the interfering objects within the specified height range.

According to the pipe routing device (1) according to the present disclosure, it is possible to perform routing in consideration of the installation positions of the members that support the pipes, thereby improving the efficiency of pipe work.

In the pipe routing device (1) according to the present disclosure, the width and height of the cross section of the pipe route set by the pipe route setting unit (62) are changeable.

According to the pipe routing device (1) according to the present disclosure, it is configured so that the width and height of the cross section of the pipe route can be changed. It is possible to appropriately set the width and height of the section of the piping route according to the characteristics of the piping.

In the pipe routing device (1) according to the present disclosure, a condition for limiting the bending direction of the pipe route is given based on the relationship between the width and height of the cross section of the pipe route, and the pipe route setting unit (62 ) transitions between said vertical routing and said horizontal routing according to said condition.

According to the pipe routing device (1) according to the present disclosure, it is possible to set the bending of pipes in an appropriate direction.

A pipe routing method according to the present disclosure is a pipe routing method for setting pipe routes for a plurality of pipes in plant equipment, wherein the pipe routes are parallelized based on information on the start and end of the plurality of pipes. In the step of grouping and parallelizing, setting a common route that a plurality of the pipes belonging to the same group pass in common, and using the common route, determine the pipe route of each of the pipes belonging to the same group A computer executes the step of determining.

According to the pipe routing method according to the present disclosure, a common route that is common to pipes to be parallelized is set, and routing of pipes belonging to the group is performed using this common route, so routing is performed for each pipe. It is possible to reduce the processing load executed by the computer as compared with the case.

A pipe routing program according to the present disclosure is a program for causing a computer to function as any of the pipe routing devices described above.

According to the pipe routing program according to the present disclosure, a common route that is common to pipes to be parallelized is set, and routing of pipes belonging to the group is performed using this common route, so each pipe is routed. It is possible to reduce the processing load executed by the computer as compared with the case.

1: Piping routing device 11: CPU
12: Auxiliary storage device 13: Main storage device 14: Communication interface 15: Input unit 16: Display unit 20: Plant database 21: Piping database 30: Group creation unit 31: Area setting unit 32: Piping selection unit 40: Routing unit 50 : Parallel pipe route setting unit 51 : Representative pipe selection unit 52 : Preceding route setting unit 53 : Common route setting unit 60 : Single pipe route setting unit 61 : Search plane setting unit 62 : Pipe route setting unit

Claims (21)

A piping routing device for setting piping routes of a plurality of piping in plant equipment,
a group creation unit that groups the pipes for parallelizing pipe routes based on information on the start and end of the plurality of pipes;
In parallelization, a parallel pipe route setting unit that sets a common route that a plurality of pipes belonging to the same group pass in common, and determines a pipe route of each pipe belonging to the same group using the common route. and
and
The group creation unit
an area setting unit that sets a spatial area based on information on the beginning and end of the pipe;
a pipe selection unit that selects the pipes to be parallelized based on an overlap index that evaluates the degree of overlapping of the spatial regions of the plurality of pipes;
and
The pipe routing device, wherein the overlap index is a value calculated using the sum of the axial lengths obtained by adding the lengths of the sides in the overlap region of the spatial regions of the plurality of pipes. The pipe selection unit has an evaluation formula represented by the following formula (1),
Overlap index = AL_Com x OR ^K. (1)
Here, AL_Com is the sum of axial lengths in the overlapping region of the spatial regions of the plurality of pipes, K is a constant of 0 or more, and OR is represented by the following equation (2),
OR=AL_Com/AL_max (2)
In the above formula (2), AL_max is the maximum value of the sum of the spatial region axis lengths obtained by adding the lengths of the sides of each of the plurality of spatial regions constituting the overlapping region,
The pipe routing device according to claim 1, wherein the pipe selection unit calculates the duplication index using the evaluation formula. A piping routing device for setting piping routes of a plurality of piping in plant equipment,
a group creation unit that groups the pipes for parallelizing pipe routes based on information on the start and end of the plurality of pipes;
In parallelization, a parallel pipe route setting unit that sets a common route that a plurality of pipes belonging to the same group pass in common, and determines a pipe route of each pipe belonging to the same group using the common route. and
and
The group creation unit
an area setting unit that sets a spatial area based on information on the beginning and end of the pipe;
a pipe selection unit that selects the pipes to be parallelized based on an overlap index that evaluates the degree of overlapping of the spatial regions of the plurality of pipes;
and
The pipe routing device, wherein the group creation unit performs grouping by selecting a combination of pipes whose duplication index is equal to or greater than a predetermined threshold as a group. A piping routing device for setting piping routes of a plurality of piping in plant equipment,
a group creation unit that groups the pipes for parallelizing pipe routes based on information on the start and end of the plurality of pipes;
In parallelization, a parallel pipe route setting unit that sets a common route that a plurality of pipes belonging to the same group pass in common, and determines a pipe route of each pipe belonging to the same group using the common route. and
and
The group creation unit
an area setting unit that sets a spatial area based on information on the beginning and end of the pipe;
a pipe selection unit that selects the pipes to be parallelized based on an overlap index that evaluates the degree of overlapping of the spatial regions of the plurality of pipes;
and
The parallel piping route setting unit
a representative pipe selection unit that selects one of the pipes belonging to the same group as a representative pipe;
a preceding route setting unit that sets the route of the representative pipe as a preceding route;
Based on the preceding route, the positions of the beginning and end of pipes other than the representative pipe, the diameter of each of the pipes belonging to the same group, and the distance between the pipes arranged in parallel, a common route setting unit that sets the common route by adjusting the end and route width;
a pipe route setting unit that sets routes of pipes belonging to the same group using the common route;
A pipe routing device comprising: 5. The pipe routing device according to claim 4 , wherein the representative pipe selection unit selects, as the representative pipe, a pipe having the shortest sum of axial lengths of the space regions or a pipe having the largest diameter, which is the sum of the lengths of the sides of the space region. . A piping routing device for setting piping routes of a plurality of piping in plant equipment,
a group creation unit that groups the pipes for parallelizing pipe routes based on information on the start and end of the plurality of pipes;
In parallelization, a parallel pipe route setting unit that sets a common route that a plurality of pipes belonging to the same group pass in common, and determines a pipe route of each pipe belonging to the same group using the common route. and,
a search plane setting unit for setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment;
Horizontal routing for performing routing in the horizontal direction while avoiding interference with obstacles on the route search plane, and avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. a piping route setting unit that performs vertical routing that connects horizontal routes set by the horizontal routing on the plurality of route search planes while performing vertical routing to set a three-dimensional piping route;
and
The pipe route setting unit identifies a space in which the pipe can be arranged in a vertical direction in a virtual plane obtained by projecting obstacles existing between the plurality of route search planes onto a common horizontal plane, and passes through the space. A pipe routing device that performs the vertical routing as described above. A piping routing device for setting piping routes of a plurality of piping in plant equipment,
a group creation unit that groups the pipes for parallelizing pipe routes based on information on the start and end of the plurality of pipes;
In parallelization, a parallel pipe route setting unit that sets a common route that a plurality of pipes belonging to the same group pass in common, and determines a pipe route of each pipe belonging to the same group using the common route. and,
a search plane setting unit for setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment;
Horizontal routing for performing routing in the horizontal direction while avoiding interference with obstacles on the route search plane, and avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. a piping route setting unit that performs vertical routing that connects horizontal routes set by the horizontal routing on the plurality of route search planes while performing vertical routing to set a three-dimensional piping route;
and
The search plane setting unit specifies a vertical height range in which the pipe can be arranged on the steel frame upper surface and the steel frame lower surface in the steel frame model of the plant equipment, and the occupation rate of the interfering object within the specified height range a pipe routing device for setting the route search plane within the height range in response to the above. A piping routing device for setting piping routes of a plurality of piping in plant equipment,
a group creation unit that groups the pipes for parallelizing pipe routes based on information on the start and end of the plurality of pipes;
In parallelization, a parallel pipe route setting unit that sets a common route that a plurality of pipes belonging to the same group pass in common, and determines a pipe route of each pipe belonging to the same group using the common route. and,
a search plane setting unit for setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment;
Horizontal routing for performing routing in the horizontal direction while avoiding interference with obstacles on the route search plane, and avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. a piping route setting unit that performs vertical routing that connects horizontal routes set by the horizontal routing on the plurality of route search planes while performing vertical routing to set a three-dimensional piping route;
and
The pipe routing device, wherein the width and height of the cross section of the pipe route set by the pipe route setting unit are changeable. A piping routing device for setting piping routes of a plurality of piping in plant equipment,
a group creation unit that groups the pipes for parallelizing pipe routes based on information on the start and end of the plurality of pipes;
In parallelization, a parallel pipe route setting unit that sets a common route that a plurality of pipes belonging to the same group pass in common, and determines a pipe route of each pipe belonging to the same group using the common route. and,
a search plane setting unit for setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment;
Horizontal routing for performing routing in the horizontal direction while avoiding interference with obstacles on the route search plane, and avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. a piping route setting unit that performs vertical routing that connects horizontal routes set by the horizontal routing on the plurality of route search planes while performing vertical routing to set a three-dimensional piping route;
and
A condition for limiting the bending direction of the piping route is provided based on the relationship between the width and height of the cross section of the piping route,
The pipe routing device, wherein the pipe route setting unit transitions between the vertical routing and the horizontal routing according to the conditions. A piping routing device for setting piping routes of a plurality of piping in plant equipment,
a group creation unit that groups the pipes for parallelizing pipe routes based on information on the start and end of the plurality of pipes;
A parallel pipe route setting unit that sets a common route through which a plurality of pipes belonging to the same group pass in common for the parallelization, and uses the common route to determine a pipe route for each pipe belonging to the same group. and,
a search plane setting unit for setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment;
a piping route setting unit that sets horizontal routing that performs routing in the horizontal direction while avoiding interference with obstacles on the route search plane;
and
In the horizontal routing, the piping route setting unit is configured so that when an obstacle is encountered by traveling straight from the starting end to the terminal end, the right side moves so that the right side comes into contact with the obstacle, or the left side comes into contact with the obstacle. As a result, if a loop is detected, the bend point closest to the end of the detected loop is specified as a relay point, and the specified relay point is used as a new start point to the end. A pipe routing device that repeats the process of going straight in the approaching direction. A piping routing device for setting piping routes of a plurality of piping in plant equipment,
a group creation unit that groups the pipes for parallelizing pipe routes based on information on the start and end of the plurality of pipes;
In parallelization, a parallel pipe route setting unit that sets a common route that a plurality of pipes belonging to the same group pass in common, and determines a pipe route of each pipe belonging to the same group using the common route. and,
a search plane setting unit for setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment;
a piping route setting unit that sets horizontal routing that performs routing in the horizontal direction while avoiding interference with obstacles on the route search plane;
and
In the horizontal routing, the piping route setting unit is configured so that when an obstacle is encountered by traveling straight from the starting end to the terminal end, the right side moves so that the right side comes into contact with the obstacle, or the left side comes into contact with the obstacle. A piping routing device that proceeds with the left method of proceeding to , and as a result, creates a bypass route that connects non-adjacent bending points when there are a plurality of bending points. A piping routing method for setting piping routes for a plurality of piping in plant equipment,
a group creation step of grouping the pipes whose pipe routes are to be parallelized based on information on the beginning and end of the plurality of pipes;
In parallelization, a parallel pipe route setting step of setting a common route through which the plurality of pipes belonging to the same group commonly pass, and using the common route to determine the pipe route of each pipe belonging to the same group. and
is executed by the computer and
The group creation step includes:
a region setting step of setting a spatial region based on information on the beginning and end of the pipe;
a pipe selection step of selecting the pipes to be arranged in parallel based on an overlap index that evaluates the degree of overlapping of the spatial regions of the plurality of pipes;
including
The pipe routing method, wherein the overlapping index is a value calculated using a sum of axial lengths obtained by adding lengths of respective sides in overlapping regions of the spatial regions of the plurality of pipes. A piping routing method for setting piping routes for a plurality of piping in plant equipment,
a group creation step of grouping the pipes whose pipe routes are to be parallelized based on information on the beginning and end of the plurality of pipes;
In parallelization, a parallel pipe route setting step of setting a common route through which the plurality of pipes belonging to the same group commonly pass, and using the common route to determine the pipe route of each pipe belonging to the same group. and
is executed by the computer and
The group creation step includes:
a region setting step of setting a spatial region based on information on the beginning and end of the pipe;
a pipe selection step of selecting the pipes to be arranged in parallel based on an overlap index that evaluates the degree of overlapping of the spatial regions of the plurality of pipes;
including
The group creation step is a pipe routing method in which a combination of pipes whose duplication index is equal to or greater than a predetermined threshold value is selected as a group and grouped. A piping routing method for setting piping routes for a plurality of piping in plant equipment,
a group creation step of grouping the pipes whose pipe routes are to be parallelized based on information on the beginning and end of the plurality of pipes;
In parallelization, a parallel pipe route setting step of setting a common route through which the plurality of pipes belonging to the same group commonly pass, and using the common route to determine the pipe route of each pipe belonging to the same group. and
is executed by the computer and
The group creation step includes:
a region setting step of setting a spatial region based on information on the beginning and end of the pipe;
a pipe selection step of selecting the pipes to be arranged in parallel based on an overlap index that evaluates the degree of overlapping of the spatial regions of the plurality of pipes;
including
The parallel piping route setting step includes:
a representative pipe selection step of selecting one of the pipes belonging to the same group as a representative pipe;
a preceding route setting step of setting the route of the representative pipe as a preceding route;
Based on the preceding route, the positions of the beginning and end of pipes other than the representative pipe, the diameter of each of the pipes belonging to the same group, and the distance between the pipes arranged in parallel, a common route setting step of setting the common route by adjusting the end and route width;
a pipe route setting step of setting a route for each pipe belonging to the same group using the common route;
Piping routing method including. A piping routing method for setting piping routes for a plurality of piping in plant equipment,
a group creation step of grouping the pipes whose pipe routes are to be parallelized based on information on the beginning and end of the plurality of pipes;
In parallelization, a parallel pipe route setting step of setting a common route through which the plurality of pipes belonging to the same group commonly pass, and using the common route to determine the pipe route of each pipe belonging to the same group. and,
a search plane setting step of setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment;
Horizontal routing for performing routing in the horizontal direction while avoiding interference with obstacles on the route search plane, and avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. a piping route setting step of setting a three-dimensional piping route by performing vertical routing that connects the horizontal routes set by the horizontal routing on the plurality of route search planes while performing vertical routing;
is executed by the computer and
The pipe route setting step includes specifying a space in which the pipe can be arranged in the vertical direction in a virtual plane obtained by projecting obstacles existing between the plurality of route search planes onto a common horizontal plane, and passing through the space. A piping routing method for performing the vertical routing as described above. A piping routing method for setting piping routes for a plurality of piping in plant equipment,
a group creation step of grouping the pipes whose pipe routes are to be parallelized based on information on the beginning and end of the plurality of pipes;
In parallelization, a parallel pipe route setting step of setting a common route through which the plurality of pipes belonging to the same group commonly pass, and using the common route to determine the pipe route of each pipe belonging to the same group. and,
a search plane setting step of setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment;
Horizontal routing for performing routing in the horizontal direction while avoiding interference with obstacles on the route search plane, and avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. a piping route setting step of setting a three-dimensional piping route by performing vertical routing that connects the horizontal routes set by the horizontal routing on the plurality of route search planes while performing vertical routing;
is executed by the computer and
In the search plane setting step, in the steel frame model of the plant equipment, a height range in the vertical direction in which the pipe can be arranged is specified on the upper surface of the steel frame and the lower surface of the steel frame, and the occupancy rate of interfering objects within the specified height range setting the route search plane within the height range according to the above. A piping routing method for setting piping routes for a plurality of piping in plant equipment,
a group creation step of grouping the pipes whose pipe routes are to be parallelized based on information on the beginning and end of the plurality of pipes;
In parallelization, a parallel pipe route setting step of setting a common route through which the plurality of pipes belonging to the same group commonly pass, and using the common route to determine the pipe route of each pipe belonging to the same group. and,
a search plane setting step of setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment;
Horizontal routing for performing routing in the horizontal direction while avoiding interference with obstacles on the route search plane, and avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. a piping route setting step of setting a three-dimensional piping route by performing vertical routing that connects the horizontal routes set by the horizontal routing on the plurality of route search planes while performing vertical routing;
is executed by the computer and
The piping routing method, wherein the width and height of the section of the piping route set by the piping route setting step are changeable. A piping routing method for setting piping routes for a plurality of piping in plant equipment,
a group creation step of grouping the pipes whose pipe routes are to be parallelized based on information on the beginning and end of the plurality of pipes;
In parallelization, a parallel pipe route setting step of setting a common route through which the plurality of pipes belonging to the same group commonly pass, and using the common route to determine the pipe route of each pipe belonging to the same group. and,
a search plane setting step of setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment;
Horizontal routing for performing routing in the horizontal direction while avoiding interference with obstacles on the route search plane, and avoiding interference with the obstacles on the route search plane and obstacles existing between the plurality of route search planes. a piping route setting step of setting a three-dimensional piping route by performing vertical routing that connects the horizontal routes set by the horizontal routing on the plurality of route search planes while performing vertical routing;
is executed by the computer and
A condition for limiting the bending direction of the piping route is provided based on the relationship between the width and height of the cross section of the piping route,
In the piping route setting step, the piping routing method transitions between the vertical routing and the horizontal routing according to the conditions. A piping routing method for setting piping routes for a plurality of piping in plant equipment,
a group creation step of grouping the pipes whose pipe routes are to be parallelized based on information on the beginning and end of the plurality of pipes;
In parallelization, a parallel pipe route setting step of setting a common route through which the plurality of pipes belonging to the same group commonly pass, and using the common route to determine the pipe route of each pipe belonging to the same group. and,
a search plane setting step of setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment;
a piping route setting step of setting horizontal routing in which routing is performed in the horizontal direction while avoiding interference with obstacles on the route search plane;
is executed by the computer and
In the horizontal routing, the piping route setting step is performed by moving straight from the starting end to the terminal end, and when an obstacle is encountered, the right side moves so that the right side comes into contact with the obstacle, or the left side comes into contact with the obstacle. As a result, when a loop is detected, the bend point closest to the end of the detected loop is specified as a relay point, and the specified relay point is used as a new start point to the end. A pipe routing method that repeats the process of going straight in the approaching direction. A piping routing method for setting piping routes for a plurality of piping in plant equipment,
a group creation step of grouping the pipes whose pipe routes are to be parallelized based on information on the beginning and end of the plurality of pipes;
In parallelization, a parallel pipe route setting step of setting a common route through which the plurality of pipes belonging to the same group commonly pass, and using the common route to determine the pipe route of each pipe belonging to the same group. and,
a search plane setting step of setting a plurality of horizontal route search planes for route search in the virtual space of plant equipment;
a piping route setting step of setting horizontal routing in which routing is performed in the horizontal direction while avoiding interference with obstacles on the route search plane;
is executed by the computer and
In the horizontal routing, the piping route setting step is performed by moving straight from the starting end to the terminal end, and when an obstacle is encountered, the right side moves so that the right side comes into contact with the obstacle, or the left side comes into contact with the obstacle. A piping routing method that, when proceeding with the left method and, as a result, having a plurality of bending points, creates a bypass route that connects the non-adjacent bending points. A piping routing program for causing a computer to function as the piping routing device according to any one of claims 1 to 11 .

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