KR102037332B1 - Method for verifying 3D design drawings and system therefor - Google Patents

Abstract

The present invention relates to a matching verification method for a 3D design drawing, to verify matching between an installation state of a facility/pipe installed in a site and a 3D design drawing; and to a system for the same. According to one embodiment of the present invention, the method for verifying matching of 3D drawing in a support system for precise construction of a plant comprises the following steps: acquiring facility scan data generated by stereoscopically scanning a facility installed in an actual working space; setting feature coordinates with respect to the facility in the facility scan data; checking a difference between the feature coordinates of the facility previously set in the stored 3D design drawing and the feature coordinates of the facility set in the facility scan data; and correcting the 3D design drawing to change the facility feature coordinates of the 3D design data into the feature coordinates of the facility set in the facility scan data when the difference is greater than a tolerance based on a checking result. Accordingly, the present invention can match an installation state of a facility/pipe installed in a site and a 3D design drawing thereof.

Description

Method for verifying 3D design drawings and system therefor}

The present invention relates to a technology for supporting plant construction, and more particularly, to a consistency verification method and a system for verifying the consistency between the installation state and the three-dimensional design drawings of the equipment / piping installed in the actual site.

Plants such as semiconductor FAB line construction, which requires large-scale investment, are not only concentrated on large-scale technology, but also require many experts to collaborate on plant construction. In order to shorten the plant construction period and perform maintenance on the plant, a system for computerizing the plant construction was developed. The following patent document discloses a 3D piping design support program device applied to a smart plant collaboration system.

The system provides workers in each field with a virtual work space in which the space in which the plant is constructed is virtually implemented, and each worker collaborates to install a facility or piping in charge of the 3D virtual space. Therefore, the simulation of the plant construction (ie, installation of facilities and pipe connection, etc.) is performed first in the virtual space. This simulation minimizes errors that can occur in actual work such as pipe interference and adjusts the schedule for plant construction. In addition, when the construction simulation in the virtual three-dimensional work space is completed, a drawing (aka ISO drawing) for connecting and arranging the simulated equipment and piping is provided to each contractor, and each contractor uses the provided drawings. Carry out plant construction in the actual space.

In general, the system builds a virtual construction space by using previously acquired building information modeling (BIM) data. However, the BIM design data is a drawing for building construction, and there may be a difference between the actual building interior space and the BIM design data. That is, unequal differences may occur between the completed interior space of the building and the BIM design data.

When the virtual construction space is constructed using the BIM design data in which such an error occurs, an error occurs between the space shown in the simulated 3D design drawing and the space in the actual construction site. As an error occurs between the 3D production drawing and the actual construction site, the workers of each company working in the actual site produce a separate drawing separately, and perform pipe connection and installation according to the drawing. In this case, a problem arises in that the production drawing and the drawing used in the actual site are dualized.

In addition, an error may occur between the location of the facility / piping recorded in the three-dimensional manufacturing drawing as well as the location of the facility / piping completed in the actual working environment. In other words, the worker proceeds to install the facility / piping with reference to the 3D design drawing, and in this process, the work is not progressed to the actual 3D design drawing, so the location of the facility / piping described in the 3D design drawing is And an error occurs between the actual work position of the facility / piping.

If the error occurs between the three-dimensional design drawings and the actual completed equipment / piping, there may be a problem in maintaining the plant after the construction of the plant is completed.

Korean Patent Registration No. 10-1860276 (Announcement Date: June 27, 2018)

The present invention has been proposed to solve such a conventional problem, by verifying the consistency of the equipment and piping modeled in the three-dimensional design drawings, the three-dimensional design to match the three-dimensional design drawings with the actual work site according to the verification results An object of the present invention is to provide a method for verifying consistency of a drawing and a system therefor.

In addition, the present invention has another object to correct the BIM design data so that the actual construction space is reflected, and to provide workers with a three-dimensional virtual construction site based on the corrected BIM design data.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

According to a first aspect of the present invention for achieving the above object, a method of verifying the conformity of the three-dimensional drawings in the plant precision construction support system, to obtain the equipment scan data of the three-dimensional scan of the equipment installed in the actual work space step; Setting feature coordinates for a facility in the facility scan data; Identifying a difference between feature coordinates of a facility previously set in the three-dimensional design drawing being stored and feature coordinates of the facility set in the facility scan data; And correcting the three-dimensional design drawing so that the facility feature coordinates of the three-dimensional design drawing are changed to the feature coordinates of the facility set in the facility scan data if the difference is greater than or equal to the tolerance.

The setting of the feature coordinates may include: identifying, in the three-dimensional design drawing, an area in which the facility is disposed; Recognizing, as the facility, points having a shape that matches a shape of the facility more than a critical ratio in the area of the facility scan data matching the identified area; And checking feature coordinate setting information of the facility in a library of a database, and setting feature coordinates in the recognized facility based on the identified setting information.

The method comprises the steps of: acquiring piping scan data three-dimensionally scanned for piping installed in an actual work space; Recognizing a pipe from the pipe scan data and confirming an area in which the pipe is located in the pipe scan data; Confirming a coincidence rate between an area in which the pipe is located in the 3D design drawing and an area of the pipe checked in the pipe scan data; And correcting the position of the pipe shown in the 3D design drawing based on the position of the pipe expressed in the pipe scan data when the checked coincidence ratio is out of the critical range.

The method includes setting feature coordinates for the recognized pipe in the pipe scan data; And checking the difference between the feature coordinates of the pipe set in advance in the 3D design drawing and the feature coordinates of the pipe set in the pipe scan data, and if the difference is more than the tolerance, the pipe feature coordinates of the 3D design drawing are The method may further include correcting the 3D design drawing to be changed to feature coordinates of the pipe set in the pipe scan data.

According to a second aspect of the present invention for achieving the above object, a plant precision construction support system for verifying the conformity of the three-dimensional drawings, the database for storing the three-dimensional design drawings; A data acquisition unit for acquiring facility scan data three-dimensionally scanning a facility installed in an actual work space; And setting feature coordinates for the facility in the facility scan data, checking a difference between the feature coordinates of the facility previously set in the 3D design drawing and the feature coordinates of the facility set in the facility scan data, and confirming the difference. As a result, if the difference is greater than or equal to a tolerance, a conformity verification unit for correcting the three-dimensional design drawings so that the facility feature coordinates of the three-dimensional design drawings are changed to the feature coordinates of the facility set in the facility scan data.

The present invention verifies the conformity between the three-dimensional scan data and the three-dimensional design drawings, and reflects the installation state of the equipment / piping in the actual site in the pre-fabricated three-dimensional design drawings, the equipment in the three-dimensional design drawings and the actual site It has the advantage of matching the installation condition of piping.

In addition, the present invention has the advantage of facilitating plant maintenance based on the three-dimensional design drawings by matching the installation state of the piping / equipment in the actual site with the three-dimensional design drawings.

In addition, the present invention compares the BIM design data with the data measured by the surveying device to verify the integrity of the BIM design data, and then reflects and corrects the verification results in the BIM design data, thereby realizing spatial information and actual information appearing in the BIM design data. There is an advantage of matching the spatial information of the construction site. In particular, the present invention has the advantage of accurately reflecting the spatial information of the actual construction site in the BIM design data because the verification of the match between the BIM design data and the surveyed data through comparison of the reference point and the structure.

The following drawings attached to this specification are illustrative of the preferred embodiments of the present invention, and together with the specific details for carrying out the invention serve to further understand the technical spirit of the present invention, the present invention described in such drawings It should not be construed as limited to matters.
1 is a diagram illustrating an environment to which a plant precision construction support system is applied according to an embodiment of the present invention.
2 is a view showing a plant precision construction support system according to an embodiment of the present invention.
3 is a flowchart illustrating a general method for performing work support required for plant construction in a plant precision construction support system according to an embodiment of the present invention.
4 is a flowchart illustrating a method of correcting BIM design data in a plant precision construction support system according to an embodiment of the present invention.
5 is a diagram illustrating an error in graphical form between a reference coordinate set in the BIM design data and a reference coordinate included in the reference point survey data.
FIG. 6 is a diagram illustrating an error in graphical form between a structure representative coordinate designed in the BIM design data and a structure representative coordinate set in the structure scan data.
FIG. 7 is a flowchart illustrating a method of verifying and correcting consistency of facilities of a 3D design drawing in a plant precision construction support system according to an embodiment of the present invention.
FIG. 8 illustrates, in graphical form, an error between facility feature coordinates included in a three-dimensional design drawing and facility feature coordinates included in three-dimensional scan data.
FIG. 9 is a flowchart illustrating a method of verifying and correcting a consistency of a pipe of a 3D design drawing in a plant precision construction support system according to an embodiment of the present invention.
FIG. 10 is a diagram illustrating, in graphical form, a state of a pipe included in the 3D design drawing and a pipe included in the 3D scan data.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating an environment to which a plant precision construction support system is applied according to an embodiment of the present invention.

As shown in FIG. 1, the plant precision construction support system 200 according to an exemplary embodiment of the present invention communicates with one or more communication terminals 100 through a network 300. The network 300 may be a private network that is disconnected from the outside. In addition, the network 300 may support short-range wireless communication such as WiFi, Bluetooth, and the like, and may also support wired communication.

The communication terminal 100 may be connected to the plant precision construction support system 200 through the network 300 to obtain a 3D design drawing or to simulate a construction work in a virtual workspace. The communication terminal 100 may be a mobile communication terminal or a personal computer capable of communicating while moving.

The plant precision construction support system 200 provides a virtual three-dimensional workspace where a large number of workers can collaborate and simulate plant construction. In addition, the plant precision construction support system 200 verifies BIM (Building information modeling) data and corrects the BIM design data by reflecting the verification result. The BIM design data represents three-dimensional modeling information of a space in which the plant is installed, and includes coordinates of a point where a structure such as a wall or a column is installed, and the size, height, and width of the structure. One or more reference points are set in the BIM design data according to the present invention.

In addition, the plant precision construction support system 200 verifies the consistency of the three-dimensional modeled three-dimensional design drawings in the virtual work space, and corrects the third design drawing by reflecting the results of the consistency verification.

2 is a view showing a plant precision construction support system according to an embodiment of the present invention.

2, the plant precision construction support system 200 according to an embodiment of the present invention includes a communication unit 210, a spatial information verification unit 220, a data acquisition unit 230, a virtual construction support unit 240, It includes a consistency verification unit 250 and a database 260, these components may be implemented in hardware or software or through a combination of hardware and software.

In addition, the plant precision construction support system 200 may include one or more processors and memory, the spatial information verification unit 220, data acquisition unit 230, virtual construction support unit 240 and consistency verification unit ( 250 may be mounted in the memory in the form of a program executed by the processor.

The database 260 is a storage means such as a disk device, and stores BIM design data, three-dimensional design drawings, and the like. The three-dimensional design drawing is a three-dimensional data that is installed and connected to the facility, the pipe, and includes the installation area information of the facility / pipe, attribute information of the facility / piping, connection information of the facility / piping. Here, the equipment is a device that operates independently, such as a gas supply device, an electric control device, a fuel supply device, and the like. Piping forms a passage through which gas, fluid, and the like are supplied and discharged, and is connected to the facility.

In addition, the database 260 stores modeling information of each facility and modeling information of each pipe. The facility modeling information includes a type of facility, model information of a facility, an attribute of a facility, a shape, a volume, a point of connection (POC), a diameter of the POC, and the like. In addition, the pipe modeling information includes pipe model information, pipe type, pipe model information, pipe property, shape, volume, POC, POC diameter, and the like. The piping modeling information and the modeling information of the facility are stored in a database in the form of a library. The library of the database 260 includes setting information on feature coordinates of each facility, and also includes setting information on feature coordinates of each pipe. The feature coordinates are represented as coordinates for points that may represent representative features of the facility / pipe, and the facility / pipe may have a plurality of feature coordinates set. In addition, the database 260 stores setting information on the representative coordinates of each structure. The representative coordinates of the structure are coordinates representing the shape of the corresponding structure. For example, when the structure is a rectangular column, four corners at the bottom may be set as the representative coordinates and stored in the database 260. As another example, when the structure is a side wall, four corners may be set as representative coordinates and stored in the database 260.

The communication unit 210 performs a function of communicating with one or more communication terminals 100 or a server through the network 300.

The data acquirer 230 performs a function of acquiring one or more of BIM design data, reference point survey data, structure scan data, and 3D scan data. The data acquisition unit 230 may receive one or more of the BIM design data, reference point survey data, structure scan data, and 3D scan data by communicating with the communication terminal 100 of the manager through the network 300. have. Alternatively, the data acquirer 230 may acquire the BIM design data, reference point survey data, structure scan data, or 3D scan data stored in an external storage device through an external interface such as a USB port.

Here, the reference point survey data is data surveyed using a surveying device such as a total station, and includes survey coordinates for one or more preset reference points. In addition, the structure scan data is survey data about a structure such as a pillar, a wall, and the like formed in a building space, and has a point cloud form that is a collection of three-dimensional points. That is, the structure scan data is a three-dimensional representation of a plurality of point coordinates representing the shape of the structure.

The 3D scan data is data obtained through a 3D scanner and has a point cloud behavior that is a set of points similar to the structure scan data. However, the three-dimensional scan data has three-dimensional points representing equipment / piping. In other words, the structure scan data is the data measured for the structure in the building before the equipment and pipes are installed in the building, and the three-dimensional scan data is measured in the internal space where only the equipment is installed or in the internal space where the equipment and pipes are installed and connected. One spatial data.

The data acquirer 230 stores the obtained data in the database 260. The data acquisition unit 230 may convert the BIM design data into a preset standard and then store the data in the database 260.

The spatial information verification unit 220 compares one or more of the reference point survey data and the structure scan data with the BIM design data to verify the conformity, and selectively corrects the BIM design data according to the matching verification result.

Specifically, the spatial information verification unit 220 compares the reference point coordinates included in the reference point survey data and the reference point coordinates included in the BIM design data to verify the consistency of the BIM design data. In other words, the BIM design data that is initially acquired and stored in the database 260 may generate spatial information and errors. That is, the initial BIM design data received from the construction company may be different from the actual completed spatial information, and the spatial information verification unit 220 compares and analyzes the reference point measurement data and the BIM design data actually measured in the space, Validate the consistency between the BIM design data and the actual building space. Here, the reference point may be marked in the building to be visually identified to a specific point in the building, and may be set in plurality. The reference point is set in the BIM design data, and the manager can measure coordinates corresponding to the reference point in real space using measurement equipment such as a total station. The spatial information verification unit 220 changes the reference point coordinates of the BIM design data to the reference point coordinates of the reference point survey data when an error occurs between the reference point coordinates of the BIM design data and the reference point coordinates of the reference point survey data. Correct the BIM design data.

In addition, when the structure scan data surveyed through the data acquisition unit 230 is obtained, the spatial information verification unit 220 compares the BIM design data of the database 260 with the structure scan data to additionally match the BIM design data. Verify. The spatial information verification unit 220 superimposes the structure scan data and the three-dimensional modeled building drawing according to the BIM design data and outputs them on the screen, and the structure scan data (that is, the point cloud) through the overlapped screen. Representative coordinates of each structure can be requested by the manager and inputted. When the spatial information verification unit 220 receives the representative coordinates of the structure from the manager, the representative coordinates of the structure scan data and the representative coordinates of the BIM design data are compared with each other to further verify the integrity of the BIM design data.

As another embodiment, the spatial information verification unit 220 automatically sets the representative coordinates of each structure through image analysis in the structure scan data, and the representative coordinates of each structure and the structure of the BIM design data that are automatically set in this way. Representative coordinates can be compared based on the same structure to verify the consistency between the BIM design data and the structure scan data. The spatial information verification unit 220 compares a point set image (ie, a point cloud image) with the shape of the structure modeled in the BIM design data and the structure scan data, and automatically recognizes the structure from the structure scan data. Representative coordinates can be set automatically from recognized structures. Preferably, the spatial information verification unit 220 confirms in advance the area in which the structure is located in the BIM design data, and matches the shape of the structure with a critical ratio or more from the shape of the checked area and the points located around the area. The points representing the shape can be recognized as a structure, and representative coordinates can be automatically set among the points forming the structure.

The spatial information verification unit 220 is a structure representative data included in the BIM design data when the error occurs more than the tolerance between the representative coordinates of the structure scan data and the representative coordinates of the BIM design data, as a result of the matching verification The BIM design data is further corrected to change to structure representative coordinates of the structure scan data.

Based on the final corrected BIM design data, the virtual construction support unit 240 provides workers with a three-dimensional virtual space that reproduces the inside of the site where the plant is constructed, and allows the workers to simulate the construction in the three-dimensional virtual space. Induce it to proceed. In this case, the workers may proceed with the construction work in the three-dimensional virtual space by using their communication terminal 100, and can check in advance the situation that interferes with the work of other workers. The virtual construction support unit 240 provides the facility modeling information and the pipe modeling information included in the database 260 to the workers, and the workers select the facility or the pipe using the facility selection (or the pipe selection) menu, and the designated location. By installing and connecting the facilities or pipes in the 3D virtual space can be simulated construction. In addition, the virtual construction support unit 240 notifies the workers to resolve the collision or interference when an error situation occurs, such as a duplicate installation of equipment in a specific place or a collision of the piping path during the work of a plurality of workers can do.

The virtual construction support unit 240 when the simulated construction of each worker is completed, and generates a three-dimensional design drawing representing the installation and connection of each facility and piping and stores in the database 260. At this time, the virtual construction support 240 may schedule the plant construction, and store the construction schedule and the three-dimensional design drawings to be completed in the construction schedule in the database 260. For example, the virtual construction support unit 240 may schedule plant construction in order of FAB design, low FAB design, facility layout, pipe connection (Hook UP design), etc., and should be completed in each construction schedule. The 3D design drawings may be classified and stored in the database 260.

The consistency verification unit 250 compares the 3D scan data and the 3D design drawing to verify the consistency of the 3D design drawing, and selectively corrects the 3D design drawing based on the verification result. The consistency verification unit 250 outputs a screen in which 3D scan data and the 3D design drawing are superimposed, and feature coordinates of each facility and piping in the 3D scan data (ie, point cloud) through the superimposed screen. You can request the setting from the administrator and receive it from the administrator. When the feature coordinates are input by the manager in the 3D scan data, the consistency verification unit 250 compares and analyzes the feature coordinates of the 3D scan data and the feature coordinates of the 3D design drawing, and thus the 3D design drawing and the 3D scan. You can verify the consistency between the data. As described above, setting information about the feature coordinates of the facility and the feature coordinates of the pipe is stored in a library of the database 260. For example, when the facility is equipment related to providing gas, as the feature coordinates of the facility, the corner coordinates of the lower front face, the corner coordinates of the upper front face, the POC coordinates, etc. may be set as the feature coordinates and stored in the library. In addition, the pipe may be stored in the library by setting the POC coordinates, the coordinates of the pipe center point as the representative coordinates as the feature coordinates.

As another embodiment, the consistency verification unit 250 automatically sets the feature coordinates of each facility / piping through image analysis on the 3D scan data, and sets the feature coordinates of each facility / piping that are automatically set as described above. Feature coordinates of the dimensional design drawings may be compared based on the same facility (or piping) to verify the conformity between the 3D design drawings and the 3D scan data. The consistency verification unit 250 compares a facility (or pipe) shape stored in the database 260 with a point set (ie, point cloud) image of the 3D scan data, and installs the facility (or pipe) in the 3D scan data. After automatically recognizing, feature coordinates can be automatically set in the recognized facility (or pipe). Preferably, the consistency verification unit 250 confirms in advance the area where the facility or the pipe is installed in the 3D design drawing, and the shape and the criticality of the facility (or the pipe) among the checked area and the shapes of the points located around the area. Points showing shapes that match more than a ratio can be recognized as equipment (or piping), and points that are displayed at preset positions among points formed in the equipment can be automatically set as feature coordinates.

When the consistency verification unit 250 generates an error more than the tolerance between the reference point set in the 3D design drawing and the reference point set in the 3D scan data, the reference point coordinates of the 3D design drawing are The 3D design drawing of the database 260 is corrected to be changed to the reference point coordinates of the 3D scan data.

3 is a flowchart illustrating a general method for performing work support required for plant construction in a plant precision construction support system according to an embodiment of the present invention.

Referring to FIG. 3, the data acquisition unit 230 of the plant precision construction support system 200 acquires and stores the BIM design data in the database 260 (S301). The BIM design data may be obtained from a building contractor. The data acquisition unit 230 may convert the BIM design data into a preset standard, and store the converted BIM design data in the database 260.

Next, the spatial information verification unit 220 compares and verifies the BIM design data stored in the database 260 and the reference point survey data to selectively correct the BIM design data, and compares and verifies the BIM design data and the structure scan data to the BIM. Further correct the design data (S303). A detailed process for the correction of the BIM design data will be described in detail with reference to FIG. 4 to be described later.

When the integrity verification of the BIM design data is completed by the spatial information verification unit 220 (that is, when the BIM correction is completed), the virtual construction support unit 240 based on the corrected BIM design data, the interior of the building where the plant is constructed. The 3D virtual space is reproduced as it is and provided to the workers, thereby inducing each worker to proceed with the virtual construction design (S305). In this case, the worker may proceed to the task in charge using the communication terminal 100 in the three-dimensional virtual space, and can check in advance the situation of interference with the work of other workers in the process. When the simulation construction of each worker is completed, the virtual construction support unit 240 generates a 3D design drawing which is a result of the construction of the workers in the 3D virtual space and stores it in the database 260.

Subsequently, the virtual construction supporter 240 may output the 3D design drawing to each worker (S307). In this case, the virtual construction supporter 240 may output the 3D design drawing by using printing means such as paper, or may provide the 3D design drawing to the communication terminal 100 of the worker. The virtual construction support unit 240 may not provide the entire 3D design drawing to the worker, but may provide only a part of the drawings included in the area in charge of the worker to the worker.

When the three-dimensional design drawings are provided in this way, the actual construction is performed by each worker.

When the construction is completed, the inspection manager measures 3D scan data using a 3D space scanner at a specific point, and the data acquirer 230 obtains the 3D scan data. Subsequently, the consistency verification unit 250 compares the three-dimensional scan data with the three-dimensional design drawing, verifies each of the consistency of the construction of the facility / piping, and corrects the three-dimensional design drawing by reflecting the verification result ( S309). The process for verifying facility integrity and verifying pipe consistency is described in detail with reference to FIGS. 7 and 9 described below.

The facility consistency verification and the pipe consistency verification may be performed through a plurality of steps. In other words, three-dimensional scan data may be continuously measured and acquired in each of the pre-hookup step, facility installation step, and final hookup step. In this case, the consistency verification unit 250 may perform the pre-hookup step, facility installation step, and final. Consistency verification between the 3D scan data and the 3D design drawing may be performed at each hookup step, and the 3D design drawing may be corrected at each step according to the result of the consistency verification.

When the 3D design drawing is corrected by reflecting the consistency results, the corrected 3D design drawing is matched with the actual plant completion site, and the maintenance of the completed plant is completed by using the 3D design drawing consistent with the completion site. It proceeds (S311).

4 is a flowchart illustrating a method of correcting BIM design data in a plant precision construction support system according to an embodiment of the present invention.

Referring to FIG. 4, when the BIM design data is initially stored in the database 260, the manager uses measurement equipment such as a total station to measure coordinates for one or more reference points, which are predetermined points in real space. . Reference points, which are the predetermined points, may be marked inside the building. In this case, the manager may survey the coordinates of each reference point in the actual space by positioning the measuring equipment at a predetermined installation point and then surveying one or more reference points marked on the building.

When the survey for the reference point is completed as described above, the data acquisition unit 230 receives the reference point survey data including the measured reference point coordinates from the manager (S401). Next, the spatial information verification unit 220 compares the coordinates of the reference point included in the reference point survey data with the reference point coordinates included in the BIM design data of the database 260, based on the same reference point, and the BIM design data and the reference point. The consistency between the survey data is verified (S403).

The spatial information verification unit 220 calculates a difference between the reference point coordinates of the BIM design data and the reference point coordinates of the reference point survey data and determines whether the difference is greater than or equal to the tolerance (S405). If the reference point does not exist, step S409 is performed without performing correction of the BIM design data.

On the other hand, the spatial information verification unit 220 is a database 260 to change the reference point coordinates of the BIM design data to the reference point coordinates of the reference point survey data if there is a reference point that the difference is greater than the tolerance, as a result of the determination The BIM design data is corrected (S407).

5 is a diagram illustrating an error in graphical form between a reference coordinate set in the BIM design data and a reference coordinate included in the reference point survey data.

In FIG. 5, coordinates of red color represent reference point coordinates included in the BIM design data, and coordinates of blue color represent reference point coordinates included in the reference point survey data. 5 shows the difference between the reference point coordinates of the BIM design data and the reference point coordinates of the reference point survey data.

As shown in FIG. 5, an error occurs between the reference point coordinates of the BIM design data and the reference point coordinates measured by the surveying instrument. In order to solve the error, the database 260 is referred to by referring to the coordinates included in the reference point survey data. The BIM design data is corrected.

Referring back to FIG. 4, the data acquirer 230 receives structure scan data from the manager in operation S409. In other words, the administrator places the 3D space scanner at a preset point, proceeds with a 3D scan at that point, and generates structure scan data, which is a set of points representing spatial information (ie, a point cloud), The data acquirer 230 receives the structure scan data from the manager. In this case, the 3D space scanner may be installed at each of a plurality of points to scan a space at different locations, and then merge the plurality of scanned data into one to generate structure scan data.

The spatial information verification unit 220 analyzes the structure scan data to recognize each structure such as a column and a wall in the structure scan data, and sets representative coordinates to each of the recognized structures (S411). The spatial information verification unit 220 checks the area where the structure is disposed in the BIM design data, and matches the shape of the structure with a critical ratio or more among points of the structure scan data displayed in the area matching the identified area. Recognize points with a structure. The spatial information verification unit 220 checks the setting information on the coordinates (that is, the representative coordinates) representing the recognized structure in the database 260 and recalls the representative coordinates of the recognized structure based on the setting information. Set from the structure scan data.

Next, the spatial information verification unit 220 compares the difference between the representative coordinates of the scan data of the structure and the representative coordinates of the BIM design data on the basis of the same structure, so that the representative coordinates in which the difference occurs beyond the tolerance It is determined whether there exists (S413, S415).

If the difference between the representative coordinates of the structure scan data and the representative coordinates of the BIM design data is less than the tolerance, the spatial information verification unit 220 does not perform correction of the BIM design data.

On the other hand, if the difference between the representative coordinates of the structure scan data and the representative coordinates of the BIM design data is more than the tolerance, the spatial information verification unit 220 determines that the representative coordinates of the structure included in the BIM design data The BIM design data of the database 260 is corrected to be changed to the structure representative coordinates of the structure scan data (S417).

FIG. 6 is a diagram illustrating an error in graphical form between a structure representative coordinate designed in the BIM design data and a structure representative coordinate set in the structure scan data.

Referring to FIG. 6, a pillar is illustrated as a structure, and four corners (ie, P1, P2, P3, and P4) of the bottom of the pillar are set as representative coordinates of the pillar structure.

In FIG. 6, red color coordinates represent structure representative coordinates set in the BIM design data, and blue color coordinates represent structure representative coordinates set in the structure scan data. 6 shows the difference between the structure representative coordinates of the BIM design data and the structure representative coordinates of the structure scan data.

As shown in FIG. 6, an error occurs between the structure representative coordinates recorded in the BIM design data and the structure completed in the actual site, and the BIM design data of the database 260 is referenced with reference to the structure scan data to reflect the error. Can be further corrected.

Through the procedure of FIG. 4, the BIM design data provided by the building implementer is not used as it is, and actual internal state of the building is reflected in the BIM design data through analysis of the reference point survey data and the structure scan data.

When the correction of the BIM design data is completed, the virtual construction support unit 240 provides workers with a three-dimensional virtual space that reproduces the inside of the site where the plant is constructed based on the corrected BIM design data, Induce the simulation to proceed. When the work of each worker is completed, the virtual construction support unit 240 generates a 3D design drawing indicating a state in which the facility and the pipe are connected, and stores it in the database 260.

The three-dimensional design drawing stored in the database 260 is corrected by the verification of the consistency verification unit 250.

FIG. 7 is a flowchart illustrating a method of verifying and correcting consistency of facilities of a 3D design drawing in a plant precision construction support system according to an embodiment of the present invention.

The procedure according to FIG. 7 can proceed if each facility is installed in the building.

Referring to FIG. 7, when the facilities are all installed in the building, the administrator places the 3D space scanner at the installation point and proceeds with the 3D scan at the installation point to indicate points representing spatial information (ie, point cloud). The included 3D scan data is generated, and the data acquisition unit 230 receives the 3D scan data from the manager (S701). In this case, the 3D space scanner may be installed at each of a plurality of installation points, scan a space at different locations, and then merge the plurality of scanned data into one to generate the 3D scan data.

Next, the consistency verification unit 250 analyzes the 3D scan data, recognizes the facility in the 3D scan data, and sets feature coordinates in each of the recognized devices (S703). The consistency verification unit 250 checks each area where the facility is arranged in the 3D design drawing of the database 260, and among the points of the 3D scan data located in the area matching the checked area, the shape and the threshold of the facility. Points with shapes that match more than a ratio are recognized as equipment. The consistency verification unit 250 checks the setting information on the recognized feature coordinates of the facility in the library of the database 260, and sets the feature coordinates of the recognized facility on the 3D scan data based on the setting information. do.

Next, the consistency verification unit 250 compares the difference between the feature coordinates of the 3D scan data and the feature coordinates of the facility modeled in the 3D design drawing based on the same facility, and the difference is greater than the tolerance. It is determined whether or not the generated feature coordinates exist (S705 and S707).

If the difference between the facility feature coordinates in the three-dimensional scan data and the facility feature coordinates in the three-dimensional design drawing is less than the tolerance, the spatial information verification unit 220 matches the three-dimensional design drawing and installs the equipment at the designated position. It is determined that is installed, do not perform correction for the three-dimensional design drawing.

On the other hand, if the difference between the facility feature coordinates in the three-dimensional scan data and the facility feature coordinates in the three-dimensional design drawing is greater than the tolerance, the spatial information verification unit 220 installs the facility as the three-dimensional design drawing. In operation S709, the 3D design drawing of the database 260 is corrected such that the feature coordinate of the equipment included in the 3D design drawing is changed to the facility feature coordinate of the 3D scan data. At this time, the spatial information verification unit 220 proceeds to adjust the position of the equipment in which the feature coordinate error occurs in the three-dimensional design drawing, so that the spatial coherence between the equipment modeled in the three-dimensional design drawing and the equipment arranged in the actual site. Match.

Through the procedure of FIG. 7, through the analysis of the three-dimensional scan data, the consistency between the equipment and the equipment of the three-dimensional design drawing stored in the database 260 is verified, and the installation state of the actual equipment is reflected in the three-dimensional design drawing. Is corrected.

FIG. 8 illustrates, in graphical form, an error between facility feature coordinates included in a three-dimensional design drawing and facility feature coordinates included in three-dimensional scan data.

In FIG. 8, lower edge coordinates, upper edge coordinates, POC coordinates, and the like are set as feature coordinates of the facility. In FIG. 8, red color coordinates represent facility feature coordinates included in the 3D design drawing, and blue color coordinates represent facility feature coordinates set in the 3D scan data. The analysis result at the lower right of FIG. 8 shows the difference between the facility feature coordinates of the 3D design drawing and the feature coordinates of the 3D scan data.

As shown in FIG. 8, an error occurs between the facility location included in the 3D design drawing and the facility location surveyed through the 3D scanner, and in order to eliminate the error, the facility feature coordinates recognized in the 3D scan data. The three-dimensional design drawings of the database 260 may be corrected by performing comparative analysis.

FIG. 9 is a flowchart illustrating a method of verifying and correcting a consistency of a pipe of a 3D design drawing in a plant precision construction support system according to an embodiment of the present invention.

The procedure according to FIG. 9 may proceed after the step of connecting the pipe between the pipe and the facility (ie the hookup step) is completed.

Referring to FIG. 9, when the pipe and the facility are connected, the manager places the 3D space scanner at the installation point, performs a 3D scan at the corresponding point, and includes points (ie, point clouds) representing spatial information. The generated 3D scan data is generated, and the data obtaining unit 230 receives the 3D scan data from the manager (S901).

Next, the consistency verification unit 250 analyzes the 3D scan data, recognizes a pipe in the 3D scan data, and sets feature coordinates in each of the pipes thus recognized (S903). The consistency verification unit 250 checks each area in which the pipe is disposed in the 3D design drawing of the database 260, and among the points of the 3D scan data located in the area matching the corresponding area, the shape and critical ratio of the pipe By checking the points having the same shape as above, each pipe can be automatically recognized. The consistency verification unit 250 confirms the setting information on the recognized feature coordinates of the pipe in the library of the database 260, and sets the feature coordinates of the recognized pipes in the 3D scan data based on the setting information. do.

Next, the consistency verification unit 250 compares the 3D scan data with the feature coordinates set to the 3D design drawing based on the same pipe, and checks whether there is a pipe that has failed the integrity verification (S905, S907). . At this time, the consistency verification unit 250 compares the difference between the feature coordinates of the 3D scan data and the feature coordinates of the 3D design drawing on the basis of the same presser opening, If the difference between the feature coordinates is greater than the tolerance, the verification of the integrity of the pipe is treated as a failure. In addition, the conformity verification unit 250 checks the area where the pipe under verification is located in the 3D scan data and the 3D design drawing, respectively, and if the coincidence rate of the checked area is outside the preset allowable range, Failure to verify the integrity of the corresponding pipe can be treated as a failure. In addition, the consistency verification unit 250 checks the pipe diameters of the pipes modeled in the 3D design drawing and the pipe diameters recognized in the 3D scan data, respectively, and if the difference between the two diameters is outside the allowable range, the consistency verification fails. can do.

The consistency verification unit 250 determines that the piping is installed according to the three-dimensional design drawing, if the integrity verification of the piping fails as a result of the determination of the consistency, and does not perform correction on the three-dimensional design drawing.

On the other hand, the consistency verification unit 250 determines that the pipe is not installed according to the three-dimensional design drawings, if the verification of the integrity of the pipe fails as a result of the determination of the consistency, the characteristic coordinates of the pipes included in the three-dimensional design drawings The 3D design drawing is corrected to be changed to feature coordinates of the pipe set in the 3D scan data (S909). That is, the consistency verification unit 250 corrects the position of the 3D design drawing based on the position of the pipe expressed in the 3D scan data. In this case, the consistency verification unit 250 proceeds to adjust the overall position of the pipe that failed in the consistency verification in the three-dimensional design drawings, and match the spatial consistency of the piping modeled in the three-dimensional design drawings with the actual pipes arranged in the field.

Through the analysis of the three-dimensional scan data, the consistency between the pipe installed in the actual space and the pipe of the three-dimensional design drawing is verified, and the actual installation state of the pipe is reflected and corrected in the three-dimensional design drawing.

FIG. 10 is a diagram illustrating, in graphical form, a state of a pipe included in the 3D design drawing and a pipe included in the 3D scan data.

Referring to FIG. 10, FIG. 10 (a) shows a comparison of pipe positions, in which red pipes represent pipes modeled in a 3D design drawing, and blue pipes represent pipes recognized from 3D scan data. Indicates.

In addition, (b) of Figure 10 is a comparison of the feature coordinates of the pipe, the red color coordinates represent the feature coordinates of the pipe set in the three-dimensional design drawing, the red color coordinates of the pipe set in the three-dimensional scan data Represents a coordinate.

FIG. 10 (c) is a comparison of pipe diameters, wherein a red pipe diameter represents a pipe diameter modeled in a three-dimensional design drawing, and a blue color pipe diameter represents a pipe diameter recognized from three-dimensional scan data. .

Meanwhile, the consistency verification according to FIG. 9 may be performed through a plurality of steps. For example, the pipe connection may be performed in a pre-hookup step in which the pipe connection is modularized, and may also be additionally performed in the final hookup step, which is performed last after the facility is installed. As another embodiment, the pipe consistency verification process may be integrated with the facility consistency verification process. That is, when the final hookup is completed, three-dimensional scan data scanned by both the facility and the pipe may be collected, and the three-dimensional scan data may be compared with the three-dimensional design drawing to simultaneously verify the integrity of the facility and the integrity of the pipe. .

While this specification contains many features, such features should not be construed as limiting the scope of the invention or the claims. Also, the features described in the individual embodiments herein can be implemented in combination in a single embodiment. Conversely, various features described in a single embodiment herein can be implemented individually in various embodiments or in combination as appropriate.

Although the operations are described in a particular order in the drawings, they should not be understood as being performed in a particular order as shown, or in a sequence of successive orders, or all described actions being performed to obtain a desired result. . Multitasking and parallel processing may be advantageous in certain circumstances. In addition, it should be understood that the division of various system components in the above-described embodiments does not require such division in all embodiments. The program components and systems described above may generally be packaged in a single software product or multiple software products.

The method of the present invention as described above may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. Since this process can be easily implemented by those skilled in the art will not be described in more detail.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

100: communication terminal
200: Plant Precision Construction Support System
300: network
210: communication unit
220: spatial information verification unit
230: data acquisition unit
240: virtual construction support unit
250: consistency verification unit
260: database

Claims (11)

As a method of verifying the conformity of three-dimensional drawings in a plant precision construction support system,
Acquiring facility scan data in the form of a point cloud scanning three-dimensionally a facility installed in an actual work space;
Setting feature coordinates for a facility in the facility scan data;
Identifying a difference between feature coordinates of a facility previously set in the three-dimensional design drawing being stored and feature coordinates of the facility set in the facility scan data; And
Correcting the three-dimensional design drawing so that the facility feature coordinates of the three-dimensional design drawing are changed to the feature coordinates of the facility set in the facility scan data when the difference is greater than or equal to the tolerance.
Setting the feature coordinates,
Identifying an area in which the facility is arranged in the three-dimensional design drawing;
Recognizing, as the facility, points having a shape that matches a shape of the facility more than a critical ratio in the area of the facility scan data matching the identified area; And
Confirming feature coordinate setting information of the facility in a library of a database, and setting feature coordinates in the recognized facility based on the identified setting information. delete The method of claim 1,
Acquiring pipe scan data in a point cloud form by scanning a pipe installed in an actual work space in a three-dimensional manner;
Recognizing a pipe from the pipe scan data and confirming an area in which the pipe is located in the pipe scan data;
Confirming a coincidence rate between an area in which the pipe is located in the 3D design drawing and an area of the pipe checked in the pipe scan data; And
And correcting the position of the pipe shown in the three-dimensional design drawing based on the position of the pipe expressed in the pipe scan data when the checked coincidence ratio is out of a critical range. The method of claim 3,
Setting feature coordinates for the recognized pipe from the pipe scan data; And
Check the difference between the feature coordinates of the pipe set in advance in the 3D design drawing and the feature coordinates of the pipe set in the pipe scan data, and if the difference is more than the tolerance, the pipe feature coordinates of the 3D design drawing are the pipes. And correcting the three-dimensional design drawing to be changed to feature coordinates of the pipe set in the scan data. The method of claim 1,
Before acquiring the scan data,
Implement a virtual three-dimensional workspace based on the stored BIM design data, perform a simulation task for the installation of the equipment or piping in the virtual three-dimensional workspace, and based on the completed equipment or piping 3 Producing a dimensional design drawing; Conformity verification method further comprising. The method of claim 5,
Before producing the three-dimensional design drawing,
Receiving survey data including one or more reference point coordinates surveyed in an actual workspace;
Comparing the reference point coordinates included in the reference point survey data with the reference point coordinates included in the BIM design data; And
If the difference between the reference point coordinates of the BIM design data and the reference point coordinates of the reference point survey data is greater than or equal to a tolerance, correcting the BIM design data such that the reference point coordinates of the BIM design data are changed to the reference point coordinates of the reference point survey data. Steps; further comprising the consistency verification method. The method of claim 6,
Receiving structure scan data in the form of a point cloud scanning three-dimensionally a structure arranged in an actual work space;
Setting a representative coordinate for a structure in the structure scan data; And
Check the difference between the representative coordinates of the structure previously set in the BIM design data and the representative coordinates of the structure set in the structure scan data, and if the difference is greater than the tolerance, the representative coordinates of the structure of the BIM design data is the structure scan. And further correcting the BIM design data to be changed to the representative coordinates of the structure set in the data. In the plant precision construction support system for verifying the conformity of three-dimensional drawings,
A database for storing three-dimensional design drawings;
A data acquisition unit for acquiring facility scan data in the form of a point cloud scanning three-dimensionally a facility installed in an actual work space; And
Set the feature coordinates for the facility in the facility scan data, check the difference between the feature coordinates of the facility previously set in the three-dimensional design drawing and the feature coordinates of the facility set in the facility scan data, the result of the confirmation And a consistency verification unit for correcting the three-dimensional design drawing so that the facility feature coordinates of the three-dimensional design drawing are changed to the feature coordinates of the facility set in the facility scan data when the difference is greater than or equal to the tolerance.
The consistency verification unit,
The area in which the facility is arranged is checked in the three-dimensional design drawing, and in the area of the facility scan data matched with the identified area, points having a shape that matches the shape of the facility more than a critical ratio are recognized as the facility. And confirming feature coordinate setting information of the facility in a library of the database and setting feature coordinates in the recognized facility based on the identified setting information. delete The method of claim 8,
The data acquisition unit acquires the pipe scan data in the form of a point cloud that scans the pipe installed in the actual work space in three dimensions,
The consistency verification unit,
After the pipe is recognized from the pipe scan data, the area in which the pipe is located is confirmed in the pipe scan data, and then a matching ratio between the area where the pipe is located in the 3D design drawing and the area of the pipe checked in the pipe scan data is determined. And if the verification result is outside the critical range, correcting the position of the pipe shown in the 3D design drawing based on the position of the pipe expressed in the pipe scan data. . The method of claim 10,
The consistency verification unit,
After setting the feature coordinates for the recognized pipe in the pipe scan data, the difference between the feature coordinates of the pipe set in advance in the 3D design drawing and the feature coordinates of the pipe set in the pipe scan data is checked. And correcting the three-dimensional design drawing such that the pipe characteristic coordinates of the three-dimensional design drawing are changed to the characteristic coordinates of the pipe set in the pipe scan data when the difference is greater than or equal to the tolerance.

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