KR20200130914A - 3D transforming system and method of setting drawing for shipbuilding - Google Patents

Abstract

Disclosed are a 3D conversion system of a shipbuilding and marine installation drawing and a method thereof. According to one embodiment of the present invention, a system for converting an installation drawing for a shipbuilding and marine model into 3D comprises: a data extraction unit for parsing the shipbuilding and marine model and extracting data; a 3D content generation unit for generating 3D content including production manufacturing information (PMI) information with an intermediate format in the form of a PRC using the data; and a packaging unit for inserting the 3D content into the 3D PDF and packaging the content with related information to generate a 3D PDF installation drawing.

Description

3D transforming system and method of setting drawing for shipbuilding}

The present invention relates to a 3D conversion system and method for shipbuilding and offshore installations.

For offshore structures such as ships and offshore plants, designers basically design 3D models. Then, the installation drawing for production installation is calculated from the 3D model.

In this case, from the point of view of the design, there is a problem that the number of hours of installation is excessively generated, and after the generation of the installation diagram, a large number of touch-up hours occurs.

In addition, since too much information is displayed from the perspective of the production installer, drawings are complicated and the reading time is excessive, and installation errors due to misreading are frequently generated. In addition, drawings to be referenced are plentiful and there are many missing information. In addition, because the drawing size is large, it is inconvenient to view and is difficult to manage, so it is often necessary to replace it.

Korean Patent Registration No. 10-1809382 (Registered on Dec. 08, 2017)-Total management system for shipbuilding and offshore plants

In the present invention, the use of paper drawings is suppressed by converting the installation drawings into 3D PDF format, and intuitive production installation is possible based on the 3D drawings, and production plans are automatically extracted and marked as production manufacturing information (PMI). This possible installation for shipbuilding and offshore is also intended to provide a 3D conversion system and method.

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

According to an aspect of the present invention, there is provided a system for converting an installation drawing of a shipbuilding and marine model into 3D, comprising: a data extraction unit that parses the shipbuilding and marine model and extracts data; A 3D content generation unit for generating 3D content including Production Manufacturing Information (PMI) information in an intermediate format in the form of a PRC using the data; And a packaging unit for inserting the 3D content into 3D PDF and packaging it with related information to generate a 3D PDF installation map.

The 3D content generator may change a tree structure using the data, generate a view, and generate the PRC by generating an attribute, generate rule-based dimensions and labels, and perform position optimization.

When generating the PMI information, the 3D content generator may extract a dimension reference point, dimension and label information, and search for a PMI arrangement area using a spatial query.

In the 3D PDF installation drawing, unnecessary dimensions and labels are excluded as much as possible when marking dimensions and labels, and may be implemented to enable installation with minimal information.

In the case of support, the position value of the nearest frame and longitudinal is read based on the member to which the support is attached, and the dimensions are automatically indicated. Dimensions can be automatically marked on a point near the structure.

According to an embodiment of the present invention, the use of paper drawings is suppressed by converting the installation drawings into 3D PDF format, and intuitive production installation is possible based on 3D drawings, and production is automatically extracted and marked as production manufacturing information (PMI). The plan has the possible effect.

1 is a schematic structural block diagram of a 3D conversion system for shipbuilding and offshore installations according to an embodiment of the present invention;
2 is a flow chart of a method for converting a 3D installation diagram for shipbuilding and offshore according to an embodiment of the present invention,
3 is a diagram showing a 3D conversion process of an installation diagram for a design model for shipbuilding;
4 is a diagram showing an installation diagram 3D conversion process for an offshore design model;
5 is a diagram showing a software development kit and an API for generating a PRC intermediate format;
6 is a diagram showing a Main_CS expression method;
7 is a table of item-specific attributes,
8 is a table of naming rules for each object;
9 is an exemplary view showing a basic screen of a 3D PDF;
10 is an exemplary view showing a method of automatically marking pipe dimensions,
11 is a diagram showing a dimension reference point;
12 is a diagram schematically illustrating the process of generating a dimension/label;
13 is an exemplary diagram of rule-based dimension label notation.

In the present invention, various modifications may be made and various embodiments may be provided, 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 a specific embodiment, it is to be understood to include all changes, equivalents, or substitutes included in the spirit and scope of the present invention.

The terms used in the present 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 "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude 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 by a combination of.

1 is a schematic block diagram of a configuration of a 3D conversion system for shipbuilding and offshore installation according to an embodiment of the present invention, and FIG. 2 is a flowchart of a method for converting 3D installation diagram for shipbuilding and offshore according to an embodiment of the present invention. 3 is a diagram showing the installation diagram 3D conversion process for the shipbuilding design model, FIG. 4 is a diagram showing the installation diagram 3D conversion process for the marine design model, and FIG. 5 is a software development for generating a PRC intermediate format A diagram showing a kit and an API, FIG. 6 is a diagram showing a method of expressing Main_CS, FIG. 7 is a table of item-specific attributes, FIG. 8 is a table of naming rules for each object, and FIG. 9 is an example of a basic screen of a 3D PDF Fig. 10 is an exemplary view showing a method of automatically marking pipe dimensions.

3D conversion system and method for shipbuilding and offshore installation according to an embodiment of the present invention can reduce paper drawing output, exclude unnecessary dimensions and labels, and allow installation with minimal information. It is possible to provide an installation diagram of the converted PDF file.

The shipbuilding and offshore installation drawing 3D conversion system 100 according to the present embodiment extracts data from a shipbuilding (ship) or offshore (plant) design model as a control unit, creates a PRC-type intermediate format, and then creates a 3D PDF. To load. When loading in 3D PDF, PMI information such as dimensions/tags related to installation can be automatically displayed. And the designer can mark additional information and issue it to the field. Since the file provided at the production site is a 3D PDF, it cannot be arbitrarily changed by the installation worker, and various types of information required for installation in the field can be extracted and utilized.

Referring to FIG. 1, a 3D conversion system for shipbuilding and offshore installations 100 includes a data extraction unit 110, a 3D content generation unit 120, and a packaging unit 130.

The data extraction unit 110 parses a model in S3D (Smart3D) (DBX) or AM (AVEVA Marine) (RVM) format to extract data necessary for 3D content generation (step S200).

The 3D content generation unit 120 generates 3D content by using the extracted data (step S210). The 3D content may have a neutral file in the form of a Product Representation Compact (PRC). And it may further include PMI information. During the process of generating 3D content, which is an intermediate format from model parsing data, a graphic file of .DBX (for S3D models) or .RVT (for AM models) may be passed.

The 3D content generation unit 120 may generate a PRC by changing a tree structure, generating a view, and generating a property by using model parsing data. In this case, it is possible to create a rule-based dimension/label and perform position optimization. Also, view information can be reused when revising the model (view import).

When generating PMI information, you can extract the dimension reference point and dimension and label information. You can search the PMI placement area, and in this case, you can use spatial queries.

The packaging unit 130 inserts the generated 3D content into the 3D PDF and packages it with related information (step S220). The PDF template is illustrated in FIG. 9. A 3D main view (①) is provided in the middle area, and an auxiliary view (②) exists. In the left area, a tree window (③), a set view window (④), and a property window (⑤) are provided. In the right area, a standard image (⑥) and a name tag (⑦) can be inserted.

The 3D main view (①) is a main screen for manipulating views or labeling such as dimension/tag information, and frequently used functions may be arranged on the main screen in the form of icons for user convenience.

The tree window (③) defines how to display under the block and allows it to be linked with the main view. The search function can find only the desired object and show it in the form of fit, and can include a Clip By Object function and a Show/No-Show function.

In the final 3D PDF generated according to the present embodiment, unnecessary dimensions and labels are excluded as much as possible when dimensions and labels are marked, and installation is possible with minimal information.

For example, the automatic dimension marking of Support is performed as follows.

The dimension information can be displayed by reading the position values of a frame and Longi close to the member to which the support is attached.

Support is based on grid information in shipbuilding/offshore.

X: Location location dimension from Web Frame (it is unnecessary to place on the member)

Y: Dimensioning in Longi. (It's not necessary to put it on the part)

Z: Deck height h=text

In the case of coaming, in the case of pipe coaming, dimensions are unnecessary, and only the element number is indicated. In the case of deck coaming, X and Y dimensions are indicated based on the corners and ends.

Scupper indicates X and Y dimensions.

For penetration pipes, X, Y dimensions are indicated, and flange height is indicated as Fh=.

The standards for marking the height of the deck above and below are as follows. In the case of decks, the mold is generally top, so the dimensions are defined from the bottom of the deck.

Automatic dimension marking for piping is performed as follows.

Dimensions are indicated at the start and end points of the pipe, Pipe Up/Down, and branch points based on the outside of the block based on a standard close to the structure (see FIG. 10). The dimensions of the components in the connected line are unnecessary.

The criteria for automatic labeling are as follows.

Spool/valve/equipment are marked in the center of the COG value standard. Pipelines can be marked automatically on an outer basis, and manually marked inside.

The conversion process for the S3D type model is shown in FIG. 3, and the conversion process for the AM (RVM) type model is shown in FIG. 4.

First, it will be described focusing on the S3D type model.

Referring to FIG. 3, data is parsed from an S3D model stored in an S3D CDB (Catalog DB) and an S3D MDB (Model DB).

Dimension reference point is extracted through data parsing. The dimensional reference point may be, for example, an elbow center, a branch center, or a flange face. In addition, PMI information such as label information and dimension information is extracted through data parsing. In addition, spatial queries for relationships such as Nearest, Intersect, and Contains are performed. The extracted PMI information may search for a PMI arrangement area through interworking with the dimension reference point and spatial query data.

The dimensional reference point is a reference position to refer to each object's characteristics when measuring dimensions, and it refers to the dimensional reference point calculated from the elbow, tee, reducer, flange, etc. As shown in Figure 11. Interworking with spatial query data is a logic to determine where PMI information is best viewed from the user's perspective.

By collecting the extracted information, an intermediate format in the form of PRC is created. At this time, tree structure change, view creation, property addition, etc. can be performed. And rule-based dimension/label generation and position optimization can be performed. Also, view information can be reused when revising a model (view import).

A schematic diagram of the dimension/label generation process is as shown in FIG. 12.

The dimensions are extracted through the dimension algorithm, and the dimension area size is calculated in units of bounding boxes. Then, explore the dimension display space. In the case of labels, after extracting the label, the size of the label area is calculated in units of bounding boxes. Then, the label display space is searched. At this time, consider the 3D object and the existing dimensions. Position optimization can be performed by arranging the layout so that the bounding boxes for dimensions and labels do not overlap each other by reflecting the spatial search result.

The intermediate format in the form of PRC is finally packaged as 3D PDF. In this case, a watermark, a print banner, and a basic format template can be applied. The standard diagram is inserted, and standard information (Name Tag) is processed. And custom menus can be created.

Next, the AM (RVM) type model will be described.

4, RVM data is parsed.

Dimension reference point is extracted through data parsing. The dimensional reference point may be, for example, an elbow center, a branch center, or a flange face. In addition, PMI information such as label information and dimension information is extracted through data parsing. In addition, spatial queries for relationships such as Nearest, Intersect, and Contains are performed. In this case, a spatial query may be performed based on the R-Tree obtained by performing spatial indexing. R-Tree refers to spatial data that organizes data by using the characteristics of the smallest rectangle in space.

The extracted PMI information may search for a PMI arrangement area through interworking with the dimension reference point and spatial query data. It can be traced by relation .

By collecting the extracted information, an intermediate format in the form of PRC is created. At this time, tree structure change, view creation, property addition, etc. can be performed. And rule-based dimension/label generation and position optimization can be performed. Also, view information can be reused when revising the model (Import view)..

13 is an example of rule-based dimensional labeling, and is a method of indicating dimensions when a pipe spool and a support are installed at the top and at the bottom of a deck (structural member). It is automatically marked in 3D PDF according to this rule.

And the intermediate format in the form of PRC is finally packaged as 3D PDF. In this case, a watermark, a print banner, and a basic format template can be applied. The standard diagram is inserted, and standard information (Name Tag) is processed. And custom menus can be created.

Referring to FIG. 5, a software development kit (SDK) includes a common module for generating PRC/PMI. Common modules include data on geometry, model structure, views, PMI, and frame/grid information.

PRC API includes S3D PRC API and AM PRC API. The PRC API defines interfaces for PRC transformation, tree structure processing, view information processing, dimension/label processing algorithm, PMI information processing, spatial DB and spatial search.

PDF API also includes S3D PDF API and RVM PDF API. The PDF API defines interfaces for PDF templates, standard image insertion, standard information processing, view printing functions, and view export functions.

Hereinafter, an operation sequence for each CAD tool will be described.

The working process in the S3D model is as follows.

You can define a work section and convert it to PRC by executing the Export Command. You can open the workspace explorer and define the area in which the user will work. Alternatively, an object uploaded in the current session can be converted into a target.

The item to be extracted is all information in the selected assembly (including structure/design). The items to be extracted may include object information, PMI information, and frame information about all objects (structure/pipe/support/device, etc.) currently visible on the screen. The PMI information may include support installation dimensions, installation product tag information, installation information such as fastening, welding information (erection), and the like. As frame information, a designated coordinate system (eg, Main_CS) among several coordinate system systems may be imported.

When Main_CS is read, only K values can be expressed without marking all frames in the X direction in a plan view (see Fig. 6A). The value of K is the case where the type of structural member is a transverse bulkhead. In the Y direction, all Longi (profiles or Longitudinal Bulkheads) can be expressed as LP.11 to LP.15 (11,490 Off C.L) (see Fig. 6(b)).

Tree organization structure and attribute information storage for the data extracted from the S3D model is performed as follows. The structure is expressed in the form of a tree in the assembly. The chairman displays the tree as it is in the assembly. Item-specific attribute representation is the same as the table shown in FIG. 7.

The application of the mold value (member thickness) is as follows. All members have direction and thickness, and bring the following information.

In the case of a plate, get the actual thickness from the material tab. Get Thickness Direction information value from Molded Conventions Tab. A member disposed in the X direction may be Inboard/Outboard, a member disposed in the Y direction may be Aft/Fore, and a member disposed in the Z direction may be Upper/Below.

In the case of Profile, Web Thickness is obtained from Cross Section Tab. Get the value of Primary Orientation from Section Orientation Tab. A member disposed in the X direction may be Inboard/Outboard, a member disposed in the Y direction may be Aft/Fore, and a member disposed in the Z direction may be Upper/Below.

Naming convention for each object may be defined as shown in FIG. 8.

The working process in the AM model is as follows.

In the AM model, if you define a work section and execute the project/filter selection/Export command, it is converted to PRC.

The item to be extracted includes all information in the selected assembly (including structure/design) for conversion. Object information, PMI information, and frame information about all objects (structure/pipe/support/device, etc.) may be included. The PMI information may include support installation dimensions, installation product tag information, installation information such as fastening, welding information (erection), and the like. Grid (GRID) information can be obtained as frame information. When creating RVM/RVT, even the grid can be converted together.

Describes the tree organization structure and storage of attribute information.

The tree structure during transformation is as follows. Pipe is composed of SPOOL and FIELD under it.

The application of the mold value (member thickness) is as follows. Depending on the element modeled as a structure, you can enter a thickness value in the following attribute.

In the case of a plate, one of Loheight and Thickn is used for HPLATE, Thickn is used for CPLATE, and the height of the lower PLOO is used for PANE.

In the case of a profile, for H-Beam, Channel, and Angle, the last number separated by'x' of Spref is used. For example, in HB:300x150x6.5x9, 6.5 is the web thickness and 9 is the flange thickness. In CH:100x50x5x7.5, 5 is the web thickness and 7.5 is the flange thickness. EA: In 75x75x9, 9 is thick.

The installation diagram 3D conversion system and method according to the present embodiment can be secured with excellent expandability in an ISO standard format. And it is equipped with data conversion technology, so it is possible to realize 3D model weight reduction and visualization technology. It can be applied to places where multi ISO drawings are required, such as HVAC/waste engines. It is possible to actively respond to 3D PDF requests from ship owners/classification/makers, etc. PMI information extraction technology is installed so that production planning is possible, and a three-dimensional annotation function can be applied. In addition, it is possible to develop an installation/assembly sequence simulation application, and it can be applied to technologies (EVM, IF) regarding information on whether to receive materials and whether to install them.

The above-described installation 3D conversion method may also be implemented in the form of a recording medium including instructions executable by a computer such as an application or program module executed by a computer. 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. Further, the computer-readable medium may include a computer storage medium. 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 above-described installation diagram 3D conversion method can be executed by an application basically installed on the terminal (this may include a program included in a platform or operating system basically mounted on the terminal), and the user can use an application store server, an application, or It may be executed by an application (ie, a program) directly installed on the master terminal through an application providing server such as a web server related to the service. In this sense, the above-described installation 3D conversion method may be implemented as an application (ie, a program) installed basically in a terminal or directly installed by a user, and recorded in a computer-readable recording medium such as a terminal.

Although the above has been described with reference to embodiments of the present invention, those of ordinary skill in the art can variously modify the present invention within the scope not departing from the spirit and scope of the present invention described in the following claims. And it will be appreciated that it can be changed.

100: installation drawing 3D conversion system 110: data extraction unit
120: 3D content generation unit 130: packaging unit

Claims (5)

As a system that converts the installation drawing for shipbuilding and marine models into 3D,
A data extraction unit for parsing the shipbuilding and marine model and extracting data;
A 3D content generator for generating 3D content including Production Manufacturing Information (PMI) information in an intermediate format in the form of a PRC using the data; And
3D conversion system for shipbuilding and marine installations including a packaging unit that inserts the 3D content into 3D PDF and packages it with related information to generate a 3D PDF installation diagram. The method of claim 1,
The 3D content generation unit changes the tree structure using the data, generates a view, generates the PRC by generating properties, generates rule-based dimensions and labels, and performs position optimization 3D Conversion system. The method of claim 2,
The 3D content generation unit extracts dimension reference point, dimension and label information when generating the PMI information, and uses a spatial query to search for a PMI arrangement area for shipbuilding and marine installation 3D conversion system. The method of claim 1,
In the 3D PDF installation drawing, unnecessary dimensions and labels are excluded as much as possible when marking dimensions and labels, and installation 3D conversion system for shipbuilding and marine applications is implemented to enable installation with minimal information. The method of claim 4,
In the case of support, dimensions are automatically marked by reading the position values of the adjacent frame and longi based on the member to which the support is attached.
In the case of piping, a 3D conversion system for shipbuilding and offshore installations that automatically displays dimensions at the starting point and end point of the pipe, and at the branch point, based on the block outline, based on a standard close to the structure.

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