KR20200041560A - 3D view automatic generating device and method for pipe MC inspection - Google Patents

Abstract

Disclosed are an automatic 3D view generation device for pipe MC inspection and a method thereof. According to one embodiment of the present invention, the automatic 3D view generation device for pipe MC inspection can comprise: an input part receiving information of a pipe MC inspection target; a package relation forming part checking a part corresponding to a package included in the pipe MC inspection target and retrieving a block including the part to form a part-block-package relation; a 3D model loading part checking a storage position of a 3D model for the block in the 3D model DB by using the block and the part, and extracting and loading the 3D model for the part from the storage position; and a 3D view generation part generating a 3D view for the loaded 3D model.

Description

{3D view automatic generating device and method for pipe MC inspection}

The present invention relates to an apparatus and method for automatically generating a 3D view for inspecting a pipe MC.

MC (Mechanical Completion) inspection means verifying and documenting that all equipment, equipment, and system specifications are built according to the project's requirements such as drawings, regulations, and regulations. In particular, the piping MC inspection is a function that verifies whether the piping installation is completed in relation to the production of the offshore plant.

Previously, many two-dimensional drawings had to be outputted and carried for pipe MC inspection, so it was not easy to inspect and compare drawings and actual sites if the inspection work was inconvenient and not an experienced inspector.

Accordingly, recently, three-dimensional models have been used for the design and construction of ships and offshore plants. Therefore, it is necessary to study how to perform pipe MC inspection more conveniently using these three-dimensional models.

It may be possible to generate a 3D view through an existing 3D CAD program. However, since automatic capture is not supported in CAD programs, you need to write a program or macro that works according to the defined logic. In addition, when using a CAD program, there is a disadvantage in that performance limitations of a PC, etc. for using the program are increased.

Korean Patent Publication No. 10-2017-0067023 (Drawing inspection device and method)

The present invention is to provide an apparatus and method for automatically generating a three-dimensional view for pipe MC inspection, which enables an inspector to easily inspect pipe MC when compared to a real site by automatically generating a three-dimensional view based on package configuration information. .

The present invention provides an apparatus and method for automatically generating a 3D view for inspecting a pipe MC that verifies whether a package is configurable through a 3D view verification using fluid information and warns of a package error when there is a change in fluid type or direction. It is to provide.

The present invention is to provide an apparatus and method for automatically generating a 3D view for inspecting a pipe MC that can be verified through a part adjacent surface using a bounding box.

Objects other than the present invention will be easily understood through the following description.

According to an aspect of the present invention, an apparatus for automatically generating a 3D view for inspecting a pipe MC, comprising: an input unit for receiving pipe MC inspection target information; A package relation component configured to identify a part corresponding to a package included in the pipe MC inspection target information, and to query a block containing the part to form a part-block-package relationship; A 3D model loading unit that checks the storage location of the 3D model for the block in the 3D model DB using the block and the part, and extracts and loads the 3D model for the part from the storage location; And a 3D view generator for generating a 3D view of the loaded 3D model.

A verification unit for verifying the package based on the 3D view may be further included.

The verification unit performs verification by using fluid information on two adjacent parts, but the fluid information may include at least one of the type and direction of the fluid.

The verification unit may determine that an error has occurred in the package configuration when the types of fluids are different for two adjacent parts or the fluid flow direction is not the same.

The verification unit performs verification through the inspection of the adjacent parts of the parts, and configures a bounding box for two parts belonging to one package, and a vertex of a bounding box of one part is inside or bound to a bounding box of another part. If it belongs, the two parts can be regarded as adjacent.

The verification unit may determine that it is an adjacent part when it comes within a tolerance by calculating the mesh point distance between the parts secondarily for parts expected to be adjacent through the first judgment.

When there is a part that belongs to one package but does not have a part that overlaps each other, the verification unit may determine that there is an error in the package configuration because there is unconnected piping.

The 3D view generation unit may generate the 3D view by capturing a screen in the ISO view direction for the loaded 3D model.

The 3D view generation unit may write a part name for each part, but calculate a distance between the mesh configuration points constituting the part at the center of the bounding box of each part, and designate a position to be minimized as a fill position.

On the other hand, according to another aspect of the present invention, a method for automatically generating a 3D view for inspecting a pipe MC, comprising: receiving information on a pipe MC inspection target; Checking a part corresponding to a package included in the pipe MC inspection target information; Constructing a part-block-package relationship by querying a block including the part; Confirming a storage location of a 3D model for the block in a 3D model DB using the block and the part; Extracting and loading a 3D model of the part from the storage location; Generating a 3D view for the loaded 3D model; And performing verification on the package based on the 3D view.

Other aspects, features, and advantages than those described above will become apparent from the following drawings, claims, and detailed description of the invention.

According to an embodiment of the present invention, it is possible to automatically generate a three-dimensional view based on the package configuration information, so that the inspector can easily inspect the pipe MC when compared with the actual site.

In addition, there is an effect of verifying whether it is a configurable package through 3D view verification using fluid information and warning a package error when there is a change in fluid type or direction.

In addition, it is possible to verify through the adjacent parts of the part using a bounding box.

1 is a block diagram of an apparatus for automatically generating a 3D view for inspecting a pipe MC according to an embodiment of the present invention;
2 is a flowchart of a method for automatically generating a 3D view for inspecting pipe MC according to an embodiment of the present invention;
3 is a view showing a three-dimensional view in the ISO view direction,
4 is a view showing a part and a bounding box,
5 is a view for explaining a package verification using fluid information,
6 is a view for explaining the package verification through the inspection of the parts adjacent parts.

The present invention can be applied to various changes and may have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

The terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as “include” or “have” are intended to indicate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, and that one or more other features are present. It should be understood that the existence or addition possibilities of fields or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance.

In addition, terms such as “… unit”, “… unit”, “… module”, and “… group” described in the specification mean a unit that processes at least one function or operation, which is hardware or software or hardware and software. It can be implemented as a combination of.

In this specification, the block refers to a unit of intermediate products for the production of ships and offshore plants.

The part is the minimum management unit of the 3D model of the ship, and includes spool, support, valve, and equipment. The parts come together to form a block 3D model.

The package is a unit for pipe MC inspection. It can consist of several spools and valves. It may also be referred to as a test package.

Piping MC inspection is a functional check that piping installation is completed, and can be divided according to the purpose of piping.

FIG. 1 is a block diagram of an apparatus for automatically generating a 3D view for inspecting pipe MC according to an embodiment of the present invention, and FIG. 2 is a method for automatically generating a 3D view for inspecting pipe MC according to an embodiment of the present invention. 3 is a view showing a three-dimensional view in the ISO view direction, FIG. 4 is a view showing parts and a bounding box, FIG. 5 is a view for explaining package verification using fluid information, and FIG. Is a diagram for explaining the package verification through the inspection of the adjacent parts.

The apparatus for automatically generating a 3D view for inspecting a pipe MC according to an embodiment of the present invention 100 automatically generates a 3D view for a package to be inspected for a pipe MC, so that an inspector can perform inspection easily . In addition, verification of a corresponding package may be performed through fluid information or whether the bounding box overlaps.

Referring to FIG. 1, an apparatus for automatically generating a 3D view for inspecting a pipe MC according to the present exemplary embodiment 100 includes an input unit 110, a package relation configuration unit 120, a 3D model loading unit 130, and a 3D model It includes a view generating unit 140. Additionally, the verification unit 150 may be further included.

The input unit 110 receives information on a pipe MC inspection target from a user (inspector) (step S200). The pipe MC inspection target information may include package information that is subject to the pipe MC inspection. The package information may include information about parts belonging to the corresponding package. Alternatively, the part information may be stored in association with the package information in the package information DB to be described later.

The package relation configuration unit 120 analyzes package information input through the input unit 110 to identify parts belonging to the corresponding package. To this end, when the package information includes part information, the package relationship configuration unit 120 may identify parts belonging to the corresponding package by interpreting the package information. Alternatively, the package relation configuration unit 120 may obtain information about parts belonging to a corresponding package by querying a package information DB (not shown) in which various pieces of information related to the package (package name, part information belonging to the package, etc.) are registered. It might be.

In addition, the package relationship configuration unit 120 may search the part information DB (not shown) to search for information on blocks associated with the previously identified parts.

The package relationship construction unit 120 configures the part-block-package relationship by combining information on packages, parts, and blocks (step S205).

Based on the block and part information associated with the package subject to the pipe MC inspection, the 3D model loading unit 130 checks the storage location in the 3D model DB (not shown) (step S210).

In the 3D model DB, the ship 3D model is configured and stored in block units. Therefore, in order to extract the 3D model of the part, it is required to check the position of the block 3D model.

The 3D model loading unit 130 extracts and loads the 3D model (part 3D model) for the part belonging to the package to be inspected from the block 3D model where the storage location is confirmed (step S215).

The 3D view generator 140 captures a screen in the ISO view direction for the loaded 3D model to generate a 3D view (step S220). The ISO view is an isometric view, which is based on three axes whose angles are 120 ㅀ from each other.

Referring to FIG. 3, a 3D view screen-captured in an ISO view direction is illustrated for a 3D model having a shape in which parts belonging to one package are assembled.

Part names are written for each part, so it is possible to check what the corresponding part is.

In this embodiment, when a part name is written in each part, the writing position may be determined according to the following conditions.

The position to be minimized can be designated as the writing position by calculating the distance between the constituent points of the mesh constituting the part at the center of the bounding box of each part. The bounding box is a box having a cuboid structure indicating a range occupied by model shape information for each part.

This is because it is difficult to know exactly which part is indicated when the part has a complicated shape when the part name is written at an arbitrary position.

However, if the center of the bounding box is simply designated as a writing position, a part name is written in the air for a part having a bent shape as shown in FIG. 4. Even in this case, there is a problem that it is difficult to clearly know which part the corresponding part name indicates.

Therefore, it is possible to increase the accuracy of the matching relationship between the parts and the part names by being located at the point closest to the center of the bounding box among the mesh configuration points constituting the shape.

By calculating a straight line distance between all the points constituting the mesh of the part and the center of the bounding box of the part, the point with the shortest distance can be selected as the entry position of the part name.

The verification unit 150 may perform verification according to the pipe MC inspection on the package in which the 3D view is generated (step S225).

For example, package verification according to a 3D view may be performed using fluid information.

Information about the type and direction of the fluid flowing along the pipe can be obtained through the pipe attribute value. The package that is the subject of pipe MC inspection (ie, test package) is a pipe that performs the same function. Therefore, for the same package, the fluid type must be the same and the direction must be constant.

If the fluid type is different for parts belonging to the same package, an error has occurred in the corresponding package configuration, and it can be verified that the package is configured incorrectly.

Also, if the directions of fluid flow in adjacent pipes are not the same and are different, this can be verified as a misconfigured package. Referring to FIG. 5, spool # 1 and spool # 2 are connected to adjacent pipes, but the case where the fluid flow direction is opposite at the connection point is illustrated. In this case, the flow direction of the fluid at the pipe connection point is not the same, and in other cases, it is possible to report and warn that the package configuration has failed.

As another example, the package verification according to the 3D view may be performed by inspecting a part adjacent surface.

It is assumed that there are two parts (A, B) belonging to one package. In this case, the bounding box 10 for the A part and the bounding box 20 for the B part may be configured.

It is possible to primarily determine whether the parts are adjacent to each other by calculating whether the vertices of the A bounding box 10 exist or are inside the construction surface of the B bounding box 20.

In FIG. 6 (a), the vertex P1 of the A bounding box 10 included inside the bounding box of another part (B bounding box 20) is illustrated. (b) shows the vertex P2 of the A bounding box 10 included on one side of the bounding box (B bounding box 20) of the other part.

If the A bounding box 10 does not have a vertex existing inside or on the construction surface of the B bounding box 20 (that is, it does not correspond to (a) or (b) of FIG. 6), the A bounding box 10 ) And the B bounding box 20 do not overlap each other, so it can be seen that the A part and the B part are not adjacent parts.

For the parts that are expected to be adjacent through the first judgment, it is judged that the parts are adjacent if they fall within the tolerance (tolerance) through second calculation of the mesh point distance between the parts.

Through the calculation of overlap between the bounding boxes of each part, parts without overlapping parts can be judged as unconnected piping, and this can be viewed as a package configuration error and warned.

The method for automatically generating a 3D view for inspecting the piping MC described above may also be implemented in the form of a recording medium including instructions executable by a computer, such as an application executed by a computer or a program module. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. In addition, computer-readable media may include computer storage media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data.

The method for automatically generating a 3D view for inspecting the piping MC described above may be executed by an application basically installed in a terminal (which may include a program included in a platform or an operating system basically installed in the terminal), and a user It may be executed by an application (ie, a program) installed directly on the master terminal through an application providing server such as an application store server, an application, or a web server related to a corresponding service. In this sense, the above-described method for automatically generating a 3D view for inspecting piping MC is implemented in an application (ie, a program) basically installed in a terminal or directly installed by a user, and recorded in a computer-readable recording medium such as a terminal. Can be.

Although described above with reference to embodiments of the present invention, those skilled in the art variously modify the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. And can be changed.

100: 3D view automatic generation device 110: input unit
120: package relations configuration unit 130: 3D model loading unit
140: 3D view generation unit 150: verification unit
10, 20: bounding box

Claims (10)

As a device that automatically generates a 3D view for inspecting piping MC,
An input unit that receives information on a pipe MC inspection target;
A package relation component configured to identify a part corresponding to a package included in the pipe MC inspection target information, and to query a block containing the part to form a part-block-package relationship;
A 3D model loading unit for confirming a storage location of a 3D model for the block in a 3D model DB using the block and the part, and extracting and loading a 3D model for the part from the storage location; And
Automatic 3D view generation device for pipe MC inspection, including a 3D view generator that generates a 3D view for a loaded 3D model. According to claim 1,
The 3D view automatic generation device for inspecting a pipe MC further comprising a verification unit for verifying the package based on the 3D view. According to claim 2,
The verification unit performs verification by using fluid information on two adjacent parts,
The fluid information is a three-dimensional view automatic generation device for the pipe MC inspection including at least one of the type and direction of the fluid. According to claim 3,
The verification unit is a three-dimensional view automatic generation device for inspecting the piping MC that determines that an error has occurred in the package configuration when the types of fluids for two adjacent parts are different or are not the same in the flow direction of the fluid. According to claim 2,
The verification unit performs verification through the inspection of the adjacent parts of the part,
If two parts belonging to one package are each configured as a bounding box, and if the vertex of the bounding box of one part belongs to the inside or the constitutional surface of the bounding box of the other part, check the pipe MC that the two parts are considered to be adjacent. 3D view automatic generation device. The method of claim 5,
The verification unit automatically generates a three-dimensional view for inspecting pipe MC that determines that it is an adjacent part when it comes within a tolerance by calculating the mesh point distance between the parts secondarily for parts expected to be adjacent through the first judgment. . The method according to claim 5 or 6,
The verification unit is a three-dimensional view automatic generation device for inspecting the pipe MC that determines that an error occurs in the package configuration because there is unconnected piping when there is a part that does not have overlapping parts. According to claim 1,
The 3D view generation unit automatically generates a 3D view for pipe MC inspection by capturing a screen in the ISO view direction for a loaded 3D model to generate the 3D view. According to claim 1,
The 3D view generation unit enters the part name for each part, but calculates the distance between the mesh construction points constituting the part at the center of the bounding box of each part, and inspects the piping MC to designate the minimized position as the fill position 3D view auto-generation device for. As a method of automatically generating a 3D view for pipe MC inspection,
Receiving information on a pipe MC inspection target;
Checking a part corresponding to a package included in the pipe MC inspection target information;
Constructing a part-block-package relationship by querying a block including the part;
Confirming a storage location of a 3D model for the block in a 3D model DB using the block and the part;
Extracting and loading a 3D model of the part from the storage location;
Generating a 3D view for the loaded 3D model; And
A method for automatically generating a 3D view for inspecting a pipe MC, including performing verification on the package based on the 3D view.

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