JP2002236711A - Design support system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily discriminate the existence/absence of the interference between additional parts and all piping and parts that have already been arranged in the process of adding the parts in plant product design. SOLUTION: This plant design support system using three-dimensional CAD is provided with a piping ambient area preparing means 5 for preparing a piping ambient space area where any piping and parts do not exist around plant piping in a three-dimensional shape, an intra-area around piping checking means 6 for deciding whether or not parts to be attached to the piping are included in the piping ambient space area for the piping being an object to which the parts are attached, an interference in piping checking means 7 for deciding whether or not the parts to be attached interfere with the piping being the object to which the parts are attached at any place other than an attachment position, and an area around the piping modifying means 8 for modifying the piping ambient space area for the piping to which the parts to be attached on the basis of the dimensions of the parts to be attached.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional CAD system, and more particularly, to attaching a part to a pipe in designing a plant, it is necessary to determine whether or not the attached part interferes with another pipe or part. The present invention relates to a suitable design support system that can be presented in a short time.

[0002]

2. Description of the Related Art In a product design, a three-dimensional CAD that can handle dimension values and the like in three dimensions and can check for interference between parts.
It has become common to proceed efficiently with the help of. However, large plants such as boilers have more than 100,000 parts.
This is impossible in terms of the memory capacity of the AD device and the processing capability of the central processing unit (CPU). Therefore, when adding a component such as a valve or a temperature measuring device to the already registered piping, the user selects the piping to be operated, partially reads out the information, adds the component, and saves the changed portion. The way has been taken.

An example is a three-dimensional CAD system shown in FIG. 14, which is composed of a CAD system 14, a display device 15, and an input device 16. The entire plant database 22 three-dimensionally stores and holds the dimensions and positions of all parts constituting the plant.

[0004] The work part information extraction unit 20 extracts a plurality of pieces of information such as pipes designated by the user and parts added to the pipes from the entire plant database 22 and stores them in the memory device 19. The component display processing unit 17 displays the shapes and positions of the pipes and components stored in the memory device 19 on the display device 15 three-dimensionally. The component input processing unit 18 stores information on the additional component input by the user from the input device 16 in the memory device 19. The work part information storage unit 21 stores the updated information in the memory device 19 in the entire plant database 22 in response to the user's editing end instruction.

When a new component is added to the memory device 19, the component interference check unit 23 interferes three-dimensionally between the added component and other piping and components stored in the memory device 19. It is checked whether or not there is interference. If there is interference, a warning display instruction is output to the component display processing unit 17 so that the user can recognize the interference. The whole interference check unit 24 performs an interference check between all the pipes and parts stored in the whole plant database 22. If there is interference, information of the other party is stored in each part, The user can be notified at the time of the next component reading. The overall interference check unit 24
The inter-component interference check unit 23 is provided to perform an interference check only on components that have been read into the memory device 19 and to check for interference with components that have not been read. A related device of this type is, for example, Japanese Patent Application Publication No. 6-60151.

However, if the user reads out many parts and performs additional work on the parts, the processing waiting time related to the interference check becomes longer, the interactivity is impaired, and not all the added parts are read out. Because it takes time to check for interference with already registered pipes and parts, automatic processing was performed at night, and no consideration was given to the point that a complete interference check could not be obtained immediately.

In Japanese Patent Application Laid-Open Nos. Hei 7-230471 and Hei 8-44777, suitable means for avoiding an interference state are shown. It is necessary to determine the interference between the target component and all other components in the vicinity. JP-A-9-14
Japanese Patent Application Laid-Open No. 7007 discloses one means for obtaining an empty space around a component as a non-interference area. However, when a component or the like is added to an existing pipe, the calculated non-interference space becomes invalid, and The space needs to be recalculated. In the case of a large number of parts such as a plant, no consideration has been given to the fact that it takes time to perform the interference check and recalculation of the non-interference space, and that all parts cannot be read out and processed at the same time.

[0008]

In the above prior art, when adding a part such as a valve or a temperature measuring device to a pipe, the user wants to immediately confirm whether the added part does not interfere with another pipe or part. Therefore, an attempt is made to read out the piping to be worked and its peripheral parts from the entire plant database.

However, when parts to be worked over the entire plant, such as long pipes, the number of peripheral pipes and parts becomes enormous, and all of them cannot be read into the memory device. Therefore, the result of the complete interference check must wait for the result of the interference check of the entire plant that is separately executed at night or the like.

Further, even if a large number of pipes and parts can be read out by increasing the capacity of the memory device, it is checked whether or not the input part interferes with other pipes and parts for all nearby parts. There is a problem in that the user has to wait for a long processing time to check for interference, and the work efficiency is reduced.

SUMMARY OF THE INVENTION An object of the present invention is to immediately and completely determine whether or not there is interference between an additional component and all of the already arranged piping and components in the process of adding a component in the design of a plant product having a large number of components. Accordingly, it is an object of the present invention to provide a design support system capable of greatly improving work efficiency.

[0012]

In order to solve the above problems, the present invention employs the following configuration. 3D CAD
In a plant design support system that uses a pipe, a pipe peripheral area creating means for creating a three-dimensional shape of a pipe peripheral space area in which no other pipes or parts exist around the pipe of the plant, and a part to be attached to the pipe are additionally provided. A pipe surrounding area check means for checking whether or not the pipe is included in the pipe surrounding space area of the target pipe; and a pipe interference for checking whether the attached part interferes with the pipe to be attached other than at the attached position. A design support system comprising: a check unit; and a piping peripheral region correcting unit that corrects a piping peripheral space region of the piping to be attached based on dimensions of the attached component.

[0013] In the design support system, the piping peripheral region creating means may provide identification information of another piping or another part constraining the piping peripheral space region to a boundary of the piping peripheral space region. system.

[0014] In the design support system, the part to be attached to the pipe is inspected by the check means in the area around the pipe to be included in the space area around the pipe, and the part to be attached to the pipe is checked by the means for checking interference in the pipe. A design support system for notifying that it is possible to attach a component to a pipe when it is inspected that the component does not interfere with the pipe at a position other than the attachment position.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A design support system according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the overall configuration of the present invention. A design support system using three-dimensional CAD according to the present embodiment is mainly composed of a CAD system 1, a display device 2, and an input device 3. The entire plant database 4 stores and holds three-dimensionally the positions and dimensions of all the parts constituting the plant and the peripheral area of each pipe.

[0016] The piping peripheral area creating unit 5 performs processing on all piping stored in the whole plant database 4.
An empty space shape around each periphery is created as a piping peripheral region, and is stored in the entire plant database 4 as piping attributes. The operation of the pipe peripheral area creating unit 5 follows the procedure shown in FIG.

The procedure shown in FIG.
An example in which a pipe as shown in FIG. 3A is stored will be described. First, the whole plant database 4
From the pipe A (ST1). It is checked whether the peripheral area of the pipe A has already been created as the read attribute of the pipe A (ST2). If it has been created, the process proceeds to ST13. If it has not been created, a sufficiently large space including the pipe A is created as shown in FIG. 3B, and this is set as the initial peripheral area of the pipe A.

Next, of the information stored in the whole plant database 4, the shape information of any pipe or wall other than the pipe A is read from the whole plant database 4 (ST4). If the information read here is the pipe B shown in FIG. 3A, it is checked whether or not the area around the pipe A and the pipe B interfere with each other (ST5). If there is no interference, the process proceeds to ST8. If there is interference, the area around the pipe A is reduced to the area in contact with the pipe B as shown in FIG. 3C (ST6). In addition, B is used as a constraint index on the surface of the reduced boundary area that is in contact with the pipe B in FIG.
The setting is made as shown in (c) (ST7).

Of the information stored in the entire plant database 4, the procedure from ST4 to ST7 is repeated for all the pipes and wall surfaces other than the pipe A (ST4).
8). In this repetition, the area around the pipe A and the pipe C
3C, the final state of the peripheral area of the pipe A is as shown in FIG. 3C. ).

Next, any constraint index information X set in the peripheral area of the completed pipe A is extracted (S
T9). If X is not a pipe, proceed to ST12 (STl
O). If X is a pipe, the area around the pipe X is re-created according to this procedure (ST11). ST9 to ST11 are repeated for all the constraint indexes set in the peripheral area of the pipe A (ST12). From ST9 to S
The process of T12 is a procedure for updating a registered peripheral area when a new pipe is added in a state where some pipes and their peripheral areas are already registered.

In ST13, the procedure from ST1 is repeated until all the pipes stored in the whole plant database 4 have been processed. When the processing is completed for all the pipes, similar to the area around the pipe A, FIG.
Are obtained in the entire plant database 4 as attribute information of each pipe.

The work part information extracting unit 9 reads out the piping designated by the user and the surrounding area from the whole plant database 4 and stores them in the memory device 10. The part / peripheral area display processing unit 12 determines the shapes and positions of the pipes and the peripheral areas stored in the memory device 10 in FIG.
The three-dimensional image is displayed on the display device 2 as shown in FIG.

Also, the pipe peripheral area check section 6 and the pipe interference check section 7 (the check for interference between parts attached to the pipe and the pipe, details of which will be described later with reference to FIG. 9). The result of the component placement possibility check is also displayed on the screen. When the user defines a new part using the input device 3 and instructs the addition to the pipe, the part input processing unit 13 stores the shape and the position of the additional part in the memory device 10. At the same time, the component input processing unit 13 sends a command for instructing whether the additional component can be arranged without interfering with other piping or components to the piping peripheral area checking unit 6, and thereby the piping peripheral area checking unit 6. , The in-pipe interference check unit 7 and the pipe peripheral area correction unit 8 sequentially execute processing, and details of these operations are shown in FIG.
This will be described using an example in which a component D is added.

The piping peripheral area check section 6 checks whether or not a component to be added to a pipe is in a peripheral area owned by the pipe based on the component placement possibility check command sent by the component input processing section 13. The detailed procedure is shown in FIG.

First, a basic shape D 'completely including the part D is created from the representative dimensions of the part D (ST1). Next, it is checked whether the created basic shape D 'is completely included in the peripheral area of the pipe B (ST2). As a result, FIG.
When the basic shape D ′ is completely included in the peripheral area of the pipe B as in the above, it is guaranteed that the part D does not interfere with other pipes and parts. In this case, an instruction to execute an interference check is sent to the in-pipe interference check unit 7 (ST3).

When the basic shape D 'is not completely included in the peripheral area of the pipe B as shown in FIG. 8B, the part D interferes with other pipes and parts, so that the A warning display instruction is sent to the area display processing unit 13 so as to display a message indicating that interference is occurring (ST4), and a series of checks as to whether or not the component D can be arranged ends with the arrangement impossible.

Next, the procedure shown in FIG. 9 is executed based on the interference check execution instruction command sent from the pipe peripheral area check section 6 to the pipe interference check section 7. At this time, the part D does not interfere with the pipes and parts other than the pipe B, but may interfere with the pipe 8 itself at a position other than the mounting position. Therefore, it is checked whether or not the basic shape D 'of the part D created by the in-pipe surrounding area check section 6 and the pipe B themselves interfere at positions other than the mounting position (ST1).

As a result, as shown in FIG. 10A, when the basic shape D 'and the pipe B interfere with each other at a position other than the mounting position,
A warning display instruction is sent to display a message indicating that interference is occurring in the part / peripheral area display processing unit 13 (ST
3), a series of checks as to whether or not the component D can be arranged ends as being unplaceable. As a result of the ST1 interference check, if the positional relationship between the pipe B and the basic shape D ′ does not interfere at positions other than the mounting position as shown in FIG. An interference-free display command is transmitted to the unit 12 (ST2), and the user is notified that the component D can be arranged as a result of checking whether the component D can be arranged. Further, a pipe peripheral area correction command is sent to the pipe peripheral area correction unit 8 (ST).
4) Yes. At this point, the user has complete results on whether or not the entered component interferes with all other components and piping.

As described above, the interference check between the input part and all the other peripheral parts, which has been conventionally performed, becomes unnecessary, and whether the additional part is included in the peripheral area of the piping to be mounted or whether the additional part is located other than the mounting position. It is only necessary to check whether or not there is interference with the pipe to be attached, so that the result can be presented in a short time on the fly.

Also, based on the pipe peripheral area correction command sent from the pipe interference check section 7 to the pipe peripheral area correction section 8, the pipe peripheral area correction section 8 uses the newly added components to control the peripheral area of each pipe. Execute the process of reducing the area. The procedure is shown in FIG.

First, an arbitrary constraint index set in the peripheral area of the pipe B is obtained (ST1). Let X be the constraint index acquired here. In the explanation example, the pipe A or the pipe C is obtained as X as shown in FIG. The peripheral area of X is read from the memory device 10 or the entire plant database 4 (ST2). Next, a surface Y in which the constraint index indicates the pipe B is taken out of the peripheral area of X (ST3). Here, if X is the pipe C, the target surface is the surface 1 or the surface 2 shown in FIG. 12A from the constraint index information in FIG. It is checked whether or not the obtained surface Y and the basic shape D ′ of the additional component interfere (ST4). If not, the process proceeds to ST6.

In the case of interference as shown in FIG. 12A, the area of the pipe C is reduced by moving the face 1 as shown in FIG. 12B (ST5). ST3 to ST5 are repeated for all surfaces Y (ST6). Here, the surface 2 in FIG. 12A is also processed, and the season does not interfere with the basic shape D ′, so that the surface 2 is not changed. The new peripheral area thus obtained is stored in the memory device 10 or the entire plant database 4.
(ST7). ST1 to ST7 are similarly executed for all the constraint indexes set in the peripheral area of the pipe B (ST8). Here, there are a plurality of surfaces where the constraint index indicates the pipe B also in the peripheral area of the pipe A,
Since there is no interference with the basic shape D 'of the mounting part, no change occurs in the peripheral area of the pipe A.

Next, as shown in FIG. 13, the area around the pipe B to which components are to be added is reduced so as to exclude the basic shape D '(ST9). As described above, when a new component is added, the pipe peripheral area correction unit 8 reduces the peripheral area of each pipe, thereby maintaining the consistency of the peripheral area between each pipe.

The work part information storage unit 11 stores the information of the additional parts and the updated information in the memory device 10 in the entire plant database 22 in response to the user's instruction to end the stripe collection.

Here, each unit and the operation thereof described in the embodiment of the present invention can be realized by a computer including an arithmetic unit, a read-only memory, a readable / writable memory, a program, and the like.

As described above, the embodiment of the present invention includes the one having the following configuration, function, or operation. That is, for all the pipes, information on a space area (peripheral area) where no other pipes or parts exist around the pipes is provided, and information on other pipes or wall surfaces that restrict the peripheral area is used as an index. Means for creating a pipe peripheral area to be added to the peripheral area, means for checking whether the part to be added to the pipe is completely included in the peripheral area of the pipe to be added, and means for checking the peripheral area of the pipe to be added. If it is completely included in the pipe, check the inside of the pipe to check whether it interferes with the pipe to be added except at the installation position. And a pipe peripheral area correcting means.

When adding a component to a pipe, a check is performed as to whether or not the component to be added is inside the peripheral area of the pipe to be added by a pipe peripheral area check unit. If the result of the check indicates that the part is in the peripheral area, it is further checked by the in-pipe interference checking means whether the part to be added interferes with the pipe to be added except at the mounting position. Here, if there is no interference at a position other than the mounting position, there is no interference with other pipes and components, and it can be determined that mounting is possible.

Therefore, the interference check only needs to check the presence or absence of interference at a position other than the added position of the part to be added and the pipe to be added, and it is not necessary to check for interference with a plurality of surrounding pipes and parts. Processing waiting time for interference check can be greatly reduced.

The information to be called into the memory device of the CAD system needs at least information on the position and shape of the pipe to which a part is to be added and the peripheral area of the pipe. In this case, even if other components cannot be read due to insufficient memory capacity, no waiting time is required to know whether or not there is interference.

Since the peripheral area of the pipe has an area overlapping with the peripheral area of another pipe located around the pipe, when a part is added to the pipe or part, the peripheral area of another pipe or part located around the pipe or part is added. However, it is necessary to correct the boundary relating to the additional parts, but the information on the pipes adjacent to the peripheral area of the pipe is provided in the peripheral area with each other as an index.

Therefore, the pipe peripheral area correcting means can easily perform the processing of correcting the peripheral area of the pipe caused by the addition of the component based on this information, so that the portion requiring correction can be easily processed. The consistency of the peripheral area of each pipe is maintained by this pipe peripheral area correction means, and even if the user sequentially adds parts, the process of interference check at the time of adding each part can be reliably completed in a short time. The waiting time for the interference check can be greatly reduced.

[0042]

As described above, according to the present invention, the following effects can be obtained.

(1) Even in the design of a plant product having a large number of parts, it is possible to immediately know whether or not there is interference between the parts added by the user and all the pipes and parts already placed.
Work efficiency can be improved.

(2) The effect of the above (1) can be obtained even when a CAD device having a smaller memory capacity is used.

[Brief description of the drawings]

FIG. 1 is a diagram showing an overall configuration of a design support system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating an operation of a piping peripheral area creating unit according to the present embodiment.

FIG. 3 is a diagram illustrating an example of creating a surrounding area in a piping surrounding area creating unit according to the present embodiment.

FIG. 4 is a diagram illustrating an example of creating a peripheral area in a piping peripheral area creating unit according to the present embodiment.

FIG. 5 is a diagram illustrating an example of a screen displayed by a component and peripheral area display processing unit according to the embodiment;

FIG. 6 is a diagram illustrating an example of adding components to a pipe for describing a pipe peripheral area check unit, a pipe interference check unit, and a pipe peripheral area correction unit according to the embodiment;

FIG. 7 is an explanatory diagram illustrating an operation of a check unit in a pipe peripheral area according to the present embodiment.

FIG. 8 is a view showing a positional relationship between a basic shape of a fitting part and a peripheral region of a pipe.

FIG. 9 is an explanatory diagram showing the operation of the in-pipe interference check unit of the present embodiment.

FIG. 10 is a diagram illustrating an example of a basic shape of a fitting part and presence / absence of interference of a pipe itself in a pipe interference check unit according to the present embodiment.

FIG. 11 is an explanatory diagram illustrating an operation of a pipe peripheral area correction unit according to the present embodiment.

FIG. 12 is a diagram illustrating an example of peripheral area correction in a pipe peripheral area correction unit of the present embodiment.

FIG. 13 is a diagram showing an example of peripheral area correction in a pipe peripheral area correction unit of the present embodiment.

FIG. 14 is a diagram showing an overall configuration of a conventional design support system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 3D CAD system 2 Display device 3 Input device 4 Whole plant database 5 Piping peripheral area creation part 6 Piping peripheral area check part 7 Piping interference check part 8 Piping peripheral area correction part 9 Work part information extraction part 10 Memory device 11 Work parts information storage unit 12 Parts and peripheral area display processing unit 13 Parts input processing unit

Claims (4)

[Claims] 1. A plant design support system using three-dimensional CAD, comprising: a pipe peripheral area creating means for creating a pipe peripheral space area in a three-dimensional shape in which no other pipes and parts are present around the pipes of the plant. A means for checking whether or not the part to be attached to the pipe is included in the pipe peripheral space area of the pipe to be attached; and a means for checking whether the attached part interferes with the pipe to be attached other than at the attachment position. A design support system, comprising: an in-pipe interference check means for determining whether or not the pipe is attached; and a pipe peripheral area correcting means for correcting a pipe peripheral space area of the pipe to be attached based on the dimensions of the attached part. . 2. The design support system according to claim 1, wherein the piping peripheral area creating means uses identification information of another piping or another component that restricts the piping peripheral space area to a boundary of the piping peripheral space area. A design support system characterized in that the design support system is provided. 3. The design support system according to claim 2, wherein said pipe peripheral area correcting means includes:
A design support system for correcting identification information of another pipe or another part that restricts the pipe peripheral space area. 4. The design support system according to claim 1, wherein said piping peripheral area checking means determines that an attached component to the piping is included in said piping peripheral space area, and said piping interference checking means. A design support system for notifying that it is possible to attach a component to the piping when it is determined that the component to be attached to the piping does not interfere with the piping at a position other than the attachment position.