KR102332407B1 - Device and method for construction site recognition based on the bim model - Google Patents

Abstract

It relates to a method for recognizing a construction site based on a BIM model using a construction site recognition device. It may include receiving the BIM model information corresponding to one and displaying the received BIM model information as a 3D model.

Description

BIM model-based construction site recognition device and method {DEVICE AND METHOD FOR CONSTRUCTION SITE RECOGNITION BASED ON THE BIM MODEL}

The present application relates to an apparatus and method for recognizing a construction site based on a BIM model.

BIM (Building Information Modeling) uses dedicated software mounted on a computer to model a construction structure (eg, civil structure, building, etc.) As it can be freely converted into 3D and displayed or output, BIM has the advantage of making it very easy to design, create and read drawings of construction structures, and to use and manage other construction information.

However, at the construction site of an actual construction structure, there is a difficulty in that it is difficult to immediately link BIM with the current construction process or construction part. Improvements are required to do so.

The technology that is the background of the present application is disclosed in Korean Patent Application Laid-Open No. 10-2015-0125238.

The present application is to solve the problems of the prior art described above, and to provide a BIM model-based construction site recognition apparatus and method that can provide a three-dimensional model corresponding to the blueprint by linking the blueprint and the BIM model of the construction structure. The purpose.

The present application provides a BIM model-based construction site recognition device and method capable of accurately specifying a location on a three-dimensional model upon user input for maintenance of a construction structure using a three-dimensional model, in order to solve the problems of the prior art described above. intended to provide

The present application is to solve the problems of the prior art described above, to provide a BIM model-based construction site recognition device and method that can recognize the construction structure of the actual construction site and display it in an augmented reality environment together with a three-dimensional model. The purpose.

However, the technical problems to be achieved by the embodiment of the present application are not limited to the technical problems as described above, and other technical problems may exist.

As a technical means for achieving the above technical problem, the BIM model-based construction site recognition method using the construction site recognition device according to an embodiment of the present application is (a) a plurality of drawings corresponding to the construction structures constructed at the site receiving BIM model information corresponding to at least one of the plurality of drawings based on a code identifier associated with at least one of have.

According to an embodiment of the present application, the method for recognizing a construction site based on a BIM model includes the steps of (c) receiving a user input for an area in which the three-dimensional model is displayed, and (d) transmitting the user input result to the outside. Further comprising, the step (c), (c1) the three-dimensional model is rotated three-dimensionally in response to the user input, and (c2) in response to the user input in response to the construction structure on the area It may include a step in which a user indication is made.

According to an embodiment of the present application, a first rotation view is set in step (c1), and a first user display is made two-dimensionally based on the first rotation view in step (c2), and again ( When the second rotation view is set in step c1) and the second user display is made two-dimensionally based on the second rotation view in step (c2), in step (d), the user input result is , information about a three-dimensional intersection position where the two-dimensional position where the first user mark is made in the first rotation view and the two-dimensional position where the second user mark is made in the second rotation view intersect with each other may be included. .

According to an exemplary embodiment of the present application, the three-dimensional intersection position is in the display area in the display area in the screen normal direction in the first rotational view and in the columnarized first area corresponding to the display area in the screen normal direction in the first rotation view. Correspondingly, it may be a common area in which the columnarized second areaized spaces intersect.

According to an embodiment of the present application, the construction site recognition device includes an augmented reality realization unit, and in step (b), the three-dimensional model is to be constructed at the site through the augmented reality realization unit. It may be displayed corresponding to the predetermined position.

According to an embodiment of the present application, in the step (b), (b1) three or more markers arranged in a state in which each three-dimensional position is pre-measured at the construction site based on the position of the augmented reality implementation unit. and (b2) calculating or correcting the position of the augmented reality implementation unit in consideration of the acquired marker position information.

According to an embodiment of the present application, the augmented reality realizing unit includes an azimuth sensor, and in step (b1), the marker position information is detected for each of the three or more markers based on the position of the augmented reality realizing unit. azimuth information, and in the step (b2), the position of the augmented reality implementation unit may be calculated or corrected based on the azimuth information and 3D position information previously measured for each of the three or more markers.

According to an embodiment of the present application, the augmented reality realization unit includes an inclination sensor for detecting an up and down inclination (pitch angle), and in the step (b1), the marker position information is, of the augmented reality realization unit Includes inclination angle information detected for each of the three or more markers based on the position, and in the step (b2), the position of the augmented reality implementation unit is, the inclination angle information and each of the three or more markers It may be calculated or corrected based on pre-measured 3D position information.

The apparatus for recognizing a construction site based on a BIM model according to an embodiment of the present application corresponds to at least one of the plurality of drawings based on a code identifier associated with at least one of a plurality of drawings corresponding to a construction structure constructed at the site It may include a model information receiver for receiving the BIM model information to be transmitted, and a model information controller for displaying the received BIM model information as a three-dimensional model.

According to an embodiment of the present application, the apparatus for recognizing a construction site based on a BIM model further includes a user input receiving unit for receiving a user input with respect to an area in which the 3D model is displayed, and a communication unit for transmitting the user input result to the outside. and the user input receiving unit rotates the three-dimensional model three-dimensionally in response to a user input, and the model information controller may perform a user display regarding the construction structure on the area in response to the user input .

According to an embodiment of the present application, a first rotation view is set in response to the user input, a first user display is made two-dimensionally based on the first rotation view, and a second rotation view is performed in response to the user input. When a rotation view is set and the second user display is made two-dimensionally based on the second rotation view, the user input result includes a two-dimensional position where the first user display is made in the first rotation view; In the second rotation view, information on a three-dimensional intersection position where the two-dimensional position where the second user mark is made intersect with each other may be included.

According to an exemplary embodiment of the present application, the three-dimensional intersection position is in the display area in the display area in the screen normal direction in the first rotational view and in the columnarized first area corresponding to the display area in the screen normal direction in the first rotation view. Correspondingly, it may be a common area in which the columnarized second areaized spaces intersect.

According to an embodiment of the present application, further comprising an augmented reality implementation unit, the three-dimensional model may be displayed in response to a location at which a construction structure will be constructed at the corresponding site through the augmented reality implementation unit.

According to an embodiment of the present application, the model information control unit, based on the location of the augmented reality realization unit, the three-dimensional location of each of the three-dimensional location of the corresponding construction site is pre-measured for the three or more markers placed in the marker position. It is possible to obtain information and calculate or correct the position of the augmented reality implementation unit in consideration of the acquired marker position information.

According to an embodiment of the present application, the augmented reality implementation unit includes an azimuth sensor, and the marker position information includes azimuth information sensed for each of the three or more markers based on the position of the augmented reality implementation unit, The position of the augmented reality realization unit may be calculated or corrected based on the azimuth information and the three-dimensional position information previously measured for each of the three or more markers.

According to an embodiment of the present application, the augmented reality implementation unit includes an inclination sensor for detecting an up and down inclination (pitch angle), and the marker position information is based on the position of the augmented reality implementation unit. It includes the detected inclination angle information for each of the markers, and the position of the augmented reality implementation unit can be calculated or corrected based on the inclination angle information and the three-dimensional position information previously measured for each of the three or more markers. have.

The above-described problem solving means are merely exemplary, and should not be construed as limiting the present application. In addition to the exemplary embodiments described above, additional embodiments may exist in the drawings and detailed description.

According to the above-described problem solving means of the present application, it is possible to provide an apparatus and method for recognizing a construction site based on a BIM model that can provide a three-dimensional model corresponding to the blueprint by linking the blueprint and the BIM model of the construction structure.

According to the above-described problem solving means of the present application, it is possible to provide an apparatus and method for recognizing a construction site based on a BIM model capable of accurately specifying a location on a three-dimensional model upon user input for maintenance of a construction structure using a three-dimensional model. .

According to the above-described problem solving means of the present application, it is possible to provide an apparatus and method for recognizing a construction site based on a BIM model that can recognize a construction structure in an actual construction site and display it in an augmented reality environment together with a 3D model.

1 is a diagram illustrating the configuration of a BIM model-based construction site recognition system according to an embodiment of the present application.
2A is a diagram illustrating a drawing and code identifier of a construction structure of a BIM model-based construction site recognition apparatus according to an embodiment of the present application.
Figure 2b is a diagram showing an example of the code identifier scan of the apparatus for recognizing a construction site based on a BIM model according to an embodiment of the present application.
3A is a diagram illustrating an example of an issue report flow of a construction site recognition device based on a BIM model according to an embodiment of the present application.
3B is a diagram illustrating an example of an issue report of a BIM model-based construction site recognition device according to an embodiment of the present application.
3c and 3d are diagrams illustrating an example of a dynamic issue of the apparatus for recognizing a construction site based on a BIM model according to an embodiment of the present application.
3e and 3f are diagrams illustrating an example of a static issue of a BIM model-based construction site recognition apparatus according to an embodiment of the present application.
4 is a diagram illustrating an example of a user input to a three-dimensional model of the apparatus for recognizing a construction site based on a BIM model according to an embodiment of the present application.
5 is a view showing an example of the recognition of the location of the construction structure through the augmented reality implementation unit of the BIM model-based construction site recognition device according to an embodiment of the present application.
6A is a diagram illustrating an example of azimuth information of the apparatus for recognizing a construction site based on a BIM model according to an embodiment of the present application.
6B is a diagram illustrating an example of inclination angle information of the apparatus for recognizing a construction site based on a BIM model according to an embodiment of the present application.
7 is a diagram illustrating a flow of a method for recognizing a construction site based on a BIM model according to an embodiment of the present application.

Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art to which the present application pertains can easily implement them. However, the present application may be embodied in several different forms and is not limited to the embodiments described herein. And in order to clearly explain the present application in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout this specification, when a part is said to be "connected" with another part, it includes not only the case where it is "directly connected" but also the case where it is "electrically connected" with another element interposed therebetween. do.

Throughout this specification, when it is said that a member is positioned "on", "on", "on", "under", "under", or "under" another member, this means that a member is positioned on the other member. It includes not only the case where they are in contact, but also the case where another member exists between two members.

Throughout this specification, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

1 is a diagram illustrating the configuration of a BIM model-based construction site recognition system according to an embodiment of the present application.

Referring to FIG. 1 , the BIM model-based construction site recognition system may include a BIM model-based construction site recognition device 100 and a BIM providing server 300 . It may include a model information receiver 110 , a model information controller 120 , a user input receiver 130 , a communicator 140 , and an augmented reality implementation unit 150 . The construction site disclosed herein means a construction site of a comprehensive construction structure constructed in the field of civil engineering such as bridges, dams, and infrastructure. In addition, the BIM model-based construction site recognition device 100 and the BIM providing server 300 may be connected through a network. The network refers to a wired and wireless connection structure capable of exchanging information between each node such as a terminal and a server, and an example of such a network includes a 3rd Generation Partnership Project (3GPP) network, a Long Term Evolution (LTE) network, 5G network, WIMAX (World Interoperability for Microwave Access) network, Internet (Internet), LAN (Local Area Network), Wireless LAN (Wireless Local Area Network), WAN (Wide Area Network), PAN (Personal Area Network), Bluetooth ( Bluetooth) networks, satellite broadcast networks, analog broadcast networks, Digital Multimedia Broadcasting (DMB) networks, and the like.

Figure 2a is a diagram showing a drawing and code identifier of a construction structure of a BIM model-based construction site recognition device according to an embodiment of the present application, Figure 2b is a BIM model-based construction site recognition device according to an embodiment of the present application It is a diagram showing an example of a code identifier scan of

Referring to FIG. 2A , the model information receiving unit 110 BIM model information corresponding to at least one of the plurality of drawings based on a code identifier associated with at least one of a plurality of drawings corresponding to a construction structure constructed on the site. can be transmitted. A plurality of drawings 10 may be utilized for the construction of a construction structure, and each drawing 10 may be provided by including a code identifier 11 associated with a BIM model of a construction structure corresponding to the drawing. The code identifier 11 may be, for example, a QR code, but is not limited thereto. The BIM providing server 300 is a server that provides BIM information of a construction structure, and may provide BIM model information of a corresponding construction structure. Illustratively, the model information receiving unit 110 may scan the code identifier in connection with the camera unit and the code identification program, and based on the scan (identification) of the code identifier, the construction structure of the corresponding drawing from the BIM providing server 300 You can receive BIM model information for FIG. 2B (a) shows a display 12 for outputting BIM model information, and FIG. 2B (b) shows a code scanner 13 that may be provided together with the display 12 . As such, the display 12 and the code scanner 13 are provided together so that the BIM model information received from the BIM providing server 300 can be output immediately based on the scan of the code identifier.

Figure 3a is a diagram showing an example of a BIM model-based construction site recognition issue report flow according to an embodiment of the present application, Figure 3b is an issue report of the BIM model-based construction site recognition device according to an embodiment of the present application It is a drawing showing an example.

According to an embodiment of the present application, when an issue with the construction structure occurs, it is possible to transmit the issue occurrence details to a person concerned with the construction of the construction structure or a manager. Issues occurring in construction structures may include abnormalities in materials or members required for the construction of structures, and abnormalities in members or combinations of materials. The user input receiving unit 130 may receive a user input for displaying a location where an issue occurs in the construction structure on a 3D model based on BIM model information, and the communication unit 140 may transmit the user input to the outside. First, a process when an issue occurs will be described first, and a user input to the 3D model will be described later with reference to FIG. 4 .

Referring to FIG. 3A , when an issue occurs in the construction structure (S301), it is determined whether the issue is an urgent matter (S302), and if it is an emergency issue, it is determined what kind of issue it is (S303), at this time, the urgent issue is If not, the occurrence of a simple issue may be reported to the outside (S304). Thereafter, it is determined whether the urgent issue is currently in progress (S305), and if the occurrence of the ongoing issue is dynamic, the issue is recorded as an image (S306), and if it is not a dynamic issue, the issue can be recorded as an image (S307) . In addition, when the user's hand to record the issue is free (S308), the issue is displayed (S309), otherwise, the issue can be recorded by recording (S310). An image or an image recorded as an image may be transmitted to a common data environment such as a cloud (S311), and an issue may be reported (S312).

Referring to FIG. 3B , when an issue occurs in a construction structure, image data or image data for reporting an issue is generated by focusing on a portion where the issue occurs, and may be reported to a manager or a person in charge of the construction structure through a common data environment.

3c and 3d are diagrams illustrating an example of a dynamic issue of the apparatus for recognizing a construction site based on a BIM model according to an embodiment of the present application.

A dynamic issue that occurs in a construction structure may include interference during construction of the structure. Referring to FIG. 3C , when constructing a bridge, interference with an existing structure or a temporary facility installed during bridge construction may be a dynamic issue in the process of constructing a pylon. In addition, referring to FIG. 3D , there may be dynamic issues such as a case in which interference with a previously constructed structure occurs even during the reinforcement type construction of the bridge.

3e and 3f are diagrams illustrating an example of a static issue of a BIM model-based construction site recognition apparatus according to an embodiment of the present application.

As shown in FIG. 3f , there may be an issue in which a structure is generated inside a manufacturing plant and a barge, or an issue in which cables and reinforcing bars interfere with reference to FIG. 3E .

4 is a diagram illustrating an example of a user input to a three-dimensional model of the apparatus for recognizing a construction site based on a BIM model according to an embodiment of the present application.

4 shows an example of a three-dimensional model based on BIM model information associated with a drawing corresponding to a part of a schematic bridge. The model information control unit 120 may display the received BIM model information as the 3D model 200 . The model information control unit 120 may display the 3D model 200 received from the BIM providing server 300 from various angles and viewpoints, and the switching of the viewpoint at which the 3D model 200 is displayed is based on a user input. can be done by The user input receiving unit 130 may receive a user input with respect to the area in which the 3D model 200 is displayed. Specifically, the user input receiving unit 130 may three-dimensionally rotate the 3D model 200 in response to the user input. The three-dimensional model 200 may be rotated in all directions by a user input. Accordingly, it is possible to provide a view from all angles with respect to the three-dimensional model 200 corresponding to the construction structure. The user input receiving unit 130 may receive a user input from a gesture through a wearable device interworking with the augmented reality implementation unit 150 (eg, a head mounted display (HMD)) to be described later, and a BIM model. A user input may also be received through a touch input to the based construction site recognition device 100 . The model information control unit 120 may rotate and display the BIM model information based on a user input. 3A and 3B , the 3D model 200 may be displayed while being rotated in various directions based on a user input.

In addition, the model information control unit 120 may perform a user display regarding the construction structure on the area in response to a user input. Illustratively, the user input receiving unit 130 is for displaying on the three-dimensional model 200 a part that requires discussion on the construction process of the construction structure, or requires a report on a major part of the construction structure, a design error, etc. A user input may be received, and the model information controller 120 may perform a user display on the 3D model 200 based on the user input for display. In the case of displaying the construction structure on the 2d drawing, it is difficult to clearly understand which part of the three-dimensional construction structure is displayed. can be resolved The communication unit 140 may transmit the user input result to the outside. The communication unit 140 may transmit the user input result to a terminal of a person related to the construction of a construction structure, such as the BIM providing server 300 , a terminal associated with a construction site office, and a terminal of a manager or worker of a construction site.

Referring to FIG. 4 , in order to perform user display on the 3D model 200 , two-dimensional user marks may be combined to perform user display at an accurate location on the 3D model 200 . In other words, when the first user display is made two-dimensionally based on the first rotation view 210 and the second user display is made two-dimensionally based on the second rotation view 220, it is transmitted to the outside The user input result is a three-dimensional intersection in which the two-dimensional position where the first user display is made in the first rotation view 210 and the two-dimensional position where the second user display is made in the second rotation view intersect with each other. Information about the location 230 may be included. Since the user looking at the display inputs a display to the 3D model 200 output to the 2D display, it may be difficult to reflect the exact display position of the 3D model 200 with only one 2D input. . Accordingly, the three-dimensional model 200 may be accurately displayed by identifying the intersection positions of the input regions through at least two two-dimensional inputs. 4 shows an example in which a user wearing the augmented reality realization unit 150 sees the same point in each of the first rotational view 210 and the second rotational view 220 . Although the actual augmented reality implementation unit 150 is displayed as a rotation view adjusted to an angle or position that is easy for a user to view the 3D model, FIG. 4 shows a conceptual example of each rotation view.

The plurality of 2D inputs may be user inputs in different rotational views of the 3D model 200, for example, the first rotational view 210 and the second rotational view 220 shown in FIG. 4, respectively. The intersection position may be determined from user inputs in various rotation views without being limited to the first rotation view 210 and the second rotation view 220 . Referring to FIG. 4 , looking at an example in which the first user display is made two-dimensionally in the first rotation view 220, when a user input to the three-dimensional model is made through a touch such as a finger touch or a pen touch on the two-dimensional monitor, , the model information control unit 120 may display a zoning space 211 (referred to as a first zoning space) in which the corresponding two-dimensional region is columnarized in a plane normal direction. In addition, even when the augmented reality implementation unit 150 is worn and the user input is performed through the wearable device, the area columnar in the screen normal direction on the screen view viewed by the user from the user input based on the recognition of the finger by the wearable device An image space may be displayed. In addition, when a user input is also made in the second rotation view 220 , the model information control unit 120 converts the corresponding two-dimensional area into a columnarized area 221 (referred to as a second area) in a plane normal direction. ) may be displayed.

Referring to FIG. 4 , the three-dimensional intersection position is the screen in the first and second rotational views 220 and 211 columnarized to correspond to the display area in the screen normal direction in the first rotation view 210 . It may be a common area 230 in which the columnar second areaized spaces 221 corresponding to the display areas in the normal direction intersect. Since the more accurate the common area 230 can converge as the number of zoning spaces according to the user input in the various rotation views is, it is possible to accurately and easily grasp the details of the construction structure.

5 is a view showing an example of the recognition of the location of the construction structure through the augmented reality implementation unit of the BIM model-based construction site recognition device according to an embodiment of the present application.

The three-dimensional model may be displayed through the augmented reality realization unit 150 in response to a location at which a construction structure will be constructed at a corresponding site. 5 shows a part of a site for constructing a bridge. Illustratively, the augmented reality implementation unit 150 may display the 3D model by matching the image of the actual construction structure of the 3D model (the image of the actual construction structure output through the augmented reality implementation unit) with the 3D model. , by matching and displaying the 3D model at the construction scheduled location of the actual construction structure corresponding to the 3D model, it is possible to provide the 3D model of the construction structure to be constructed at the construction scheduled location in an augmented reality environment.

In order to match the 3D model to the location where the construction structure will be constructed at the site, it is important to recognize the site and accurately grasp the planned location. For example, the augmented reality implementation unit 150 may determine a position at which the 3D model is to be matched with the position of the construction structure at the site through a marker for recognizing the construction structure provided at the construction site. The model information control unit 120 is a marker for three or more markers (12, 13, 14) arranged in a state in which each three-dimensional position is measured in advance at the construction site based on the position of the augmented reality realization unit 150 Location information can be obtained. Referring to FIG. 5 , a plurality of markers 12 , 13 , and 14 may be provided at a construction site around a construction structure. Each of the markers 12 , 13 , and 14 may be provided in various shapes and colors that can be distinguished from a construction machine, a structure, a construction material, and the like at a construction site. In addition, the three-dimensional position of each of the markers 12 , 13 , and 14 may be exemplarily expressed as a three-dimensional coordinate value, and may be stored in advance in the BIM model-based construction site recognition apparatus 100 .

In addition, the marker may be provided not only on the construction site, but also on some construction structures under construction. For example, the marker may be provided in three different areas of the construction structure under construction, and the model information controller 120 may recognize the marker provided in the construction structure. The model information control unit 120 may generate a location identifier associated with information on the location of the augmented reality implementation unit 150 for matching the three-dimensional model and the construction structure based on the recognition of the three-point marker. The model information control unit 120 may measure the distance from the generated location identifier to the three-point marker provided in the construction structure for each of the markers. Information on the distance from the location identifier to the three-point marker and the conceptual distance (distance in the augmented reality environment) from the location identifier to the 3D model may be provided. In this case, the distance to the three-dimensional model may be a distance to three points of the three-dimensional model corresponding to the three-point marker. The model information control unit 120 is based on the distance from the location identifier to the three-point marker and the distance from the location identifier to three points of the three-dimensional model of the augmented reality implementation unit 150 for matching the three-dimensional model and the construction structure. The position can be calculated or corrected. Calculation or correction of the position of the augmented reality implementation unit 150 may be made based on a known distance measurement and correction technique.

Illustratively, the augmented reality implementation unit 150 may output a criterion for guiding marker recognition. When the user wearing the augmented reality implementation unit 150 positions the marker 14 so that the marker 14 in the visible region corresponds to the reference point, the model information control unit 120 controls the position of the augmented reality implementation unit 150, that is, Angle information for locating the markers may be acquired from the position of the user looking at the markers. The angle information may be obtained for all markers 12, 13, and 14, respectively.

6A is a diagram illustrating an example of azimuth information of the apparatus for recognizing a construction site based on a BIM model according to an embodiment of the present application.

Unlike the above-described example, when the construction structure has not yet been constructed enough to include the marker on the construction structure, the marker may be provided at the construction site adjacent to the construction structure, and the 3D model and the construction structure are also provided through the marker at the construction site. The position calculation or correction of the augmented reality implementation unit 150 for the matching of may be made. Specifically, the marker location information may include information on the azimuth angle sensed for each of the three or more markers based on the location of the augmented reality implementation unit. For example, the augmented reality implementation unit 150 may include an azimuth sensor. The model information controller 120 may receive an azimuth from the center to the marker on a virtual horizontal reference line for the marker measured through the azimuth sensor, and generate azimuth information for each marker based on the received azimuth. The reference line for measuring the azimuth may be output together with the reference ruler 151 described with reference to FIG. 5B . Referring to FIG. 6A , the azimuth sensor may measure the first azimuth 22 of the first marker 12 , and the second azimuth 23 of the second marker 13 and the second azimuth of the third marker 14 . Each of the three azimuth angles 24 may be measured, and azimuth information for each marker may be generated through the measured azimuth angles.

The model information control unit 120 may calculate or correct the position of the augmented reality implementation unit 150 in consideration of the acquired marker position information. Specifically, the position of the augmented reality realization unit 150 may be calculated or corrected based on azimuth information and 3D position information previously measured for each of the three or more markers. The model information control unit 120 calculates or corrects the position of the augmented reality implementation unit 150 through a known triangulation technique, etc., based on the three-dimensional position of each marker and the azimuth information of each marker through the marker position information. can As the relative position of the augmented reality implementation unit 150 with respect to the construction structure is determined, the 3D model displayed through the augmented reality implementation unit 150 and the construction structure can be accurately matched.

6B is a diagram illustrating an example of inclination angle information of the apparatus for recognizing a construction site based on a BIM model according to an embodiment of the present application.

Illustratively, the augmented reality implementation unit 150 may include a tilt sensor that detects an up and down tilt. The model information control unit 120 further considers the above-described azimuth as well as the position of the up and down concept of the augmented reality implementation unit, that is, the inclination angle (pitch angle), for a more accurate location determination of the augmented reality implementation unit 150, augmented reality. The location of the implementation unit 150 may be calculated or corrected. The model information control unit 120 may receive the pitch angle from the center to the marker on a virtual vertical reference line for the marker measured through the inclination sensor, and generate inclination angle information for each marker based on this. . The reference line for measuring the pitch angle may be output together with the reference ruler 151 described with reference to FIG. 5B . Referring to FIG. 6B , the tilt sensor may measure the first pitch angle 32 of the first marker 12 , and the second pitch angle 33 and the third marker 14 of the second marker 13 . Each of the third pitch angles 34 may be measured, and inclination angle information for each of the markers may be generated through the measured pitch angles.

In addition, the position of the augmented reality implementation unit 150 may be calculated or corrected based on the inclination angle information and the three-dimensional position information previously measured for each of the three or more markers. The model information control unit 120 calculates the position of the augmented reality implementation unit 150 through a known triangulation technique, etc., based on the three-dimensional position of each marker and the inclination angle information of each marker through the marker position information, or can be corrected

For example, the model information control unit 120 may provide a simulation of the next process performed on the building structure under construction through the augmented reality implementation unit 150 . For example, a simulation in which a construction process (installation process) of a building material to be built on a building structure built so far is implemented in augmented reality may be displayed through the augmented reality implementation unit 150 . In addition, the building materials to be built for the next process may be implemented in augmented reality in the image of the actual construction structure, and simulation may be made. In other words, the next process may be simulated by matching the augmented reality-based image for the next process to the real image.

7 is a diagram illustrating a flow of a method for recognizing a construction site based on a BIM model according to an embodiment of the present application.

The method for recognizing a construction site based on a BIM model according to an embodiment of the present application shown in FIG. 7 may be performed by the apparatus for recognizing a construction site based on the BIM model described with reference to FIGS. 1 to 6B above. Therefore, even if omitted below, the contents described with respect to the apparatus for recognizing a construction site based on a BIM model according to an embodiment of the present application through FIGS. 1 to 6B may be equally applied to FIG. 7 .

Referring to FIG. 7 , in step S710 , the model information receiving unit 110 corresponds to at least one of the plurality of drawings based on the code identifier associated with at least one of the plurality of drawings corresponding to the construction structure constructed at the site. BIM model information can be transmitted. A plurality of drawings 10 may be utilized for the construction of a construction structure, and each drawing 10 may be provided by including a code identifier 11 associated with a BIM model of a construction structure corresponding to the drawing. The model information receiver 110 may scan the code identifier in connection with the camera unit and the code identification program, and based on the scan (identification) of the code identifier, the BIM model for the construction structure of the corresponding drawing from the BIM providing server 300 information can be transmitted.

In step S720 , the model information control unit 120 may display the received BIM model information as the 3D model 200 . The model information control unit 120 may display the 3D model 200 received from the BIM providing server 300 from various angles and viewpoints, and the switching of the viewpoint at which the 3D model 200 is displayed is based on a user input. can be done by

In step S730, the user input receiving unit 130 may receive a user input with respect to the area in which the 3D model 200 is displayed. Specifically, the user input receiving unit 130 may three-dimensionally rotate the 3D model 200 in response to the user input. The three-dimensional model 200 may be rotated in all directions by a user input. Accordingly, it is possible to provide a view from all angles with respect to the three-dimensional model 200 corresponding to the construction structure.

In addition, the model information control unit 120 may perform a user display regarding the construction structure on the area in response to a user input. Illustratively, the user input receiving unit 130 may display a part that requires discussion of the structure, parts, and coupling state of the construction structure, or that needs to report a major part of the construction structure, design errors, etc. on the three-dimensional model 200 . may receive a user input for displaying on the , and the model information control unit 120 may perform a user display on the 3D model 200 based on the user input for display.

In step S740, the communication unit 140 may transmit the user input result to the outside. The communication unit 140 may transmit the user input result to a terminal of a person related to the construction of a construction structure, such as the BIM providing server 300 , a terminal associated with a construction site office, and a terminal of a manager or worker of a construction site.

In order to perform user display on the 3D model 200 , two-dimensional user marks may be combined to perform user display at an accurate location on the 3D model 200 . In other words, when the first user display is made two-dimensionally based on the first rotation view and the second user display is two-dimensionally performed based on the second rotation view, the user input result transmitted to the outside may include information on a three-dimensional intersection position where the two-dimensional position where the first user mark is made in the first rotation view and the two-dimensional position where the second user mark is made in the second rotation view intersect with each other. At this time, the three-dimensional intersection position is columnarized to correspond to the display area in the screen normal direction in the first rotation view, and the first area space 211 is columnarized to correspond to the display area in the screen normal direction in the second rotation view. The second regionized space 221 may be a common region 230 where they intersect. Since the more accurate the common area 230 can converge as the number of zoning spaces according to the user input in the various rotation views is, it is possible to accurately and easily grasp the details of the construction structure.

In addition, the three-dimensional model may be displayed through the augmented reality realization unit 150 in response to a location at which a construction structure is to be constructed at the corresponding site. Illustratively, the augmented reality implementation unit 150 may display the 3D model by matching the image of the actual construction structure of the 3D model (the image of the actual construction structure output through the augmented reality implementation unit) with the 3D model. , by matching and displaying the 3D model at the construction scheduled location of the actual construction structure corresponding to the 3D model, it is possible to provide the 3D model of the construction structure to be constructed at the construction scheduled location in an augmented reality environment.

In order to match the 3D model to the location where the construction structure will be constructed at the site, it is important to recognize the site and accurately grasp the planned location. For example, the augmented reality implementation unit 150 may determine a position at which the 3D model is to be matched with the position of the construction structure at the site through a marker for recognizing the construction structure provided at the construction site. The model information control unit 120 is a marker for three or more markers (12, 13, 14) arranged in a state in which each three-dimensional position is measured in advance at the construction site based on the position of the augmented reality realization unit 150 Location information can be obtained. Illustratively, the marker position information may include azimuth information sensed for each of the three or more markers based on the position of the augmented reality implementation unit. The augmented reality implementation unit 150 may include an azimuth sensor, and the model information control unit 120 receives the azimuth from the center to the marker on a virtual horizontal reference line for the marker measured through the azimuth sensor, Based on the azimuth angle information for each marker may be generated.

The model information control unit 120 may calculate or correct the position of the augmented reality implementation unit 150 in consideration of the acquired marker position information. Specifically, the position of the augmented reality realization unit 150 may be calculated or corrected based on azimuth information and 3D position information previously measured for each of the three or more markers. The model information control unit 120 calculates or corrects the position of the augmented reality implementation unit 150 through a known triangulation technique, etc., based on the three-dimensional position of each marker and the azimuth information of each marker through the marker position information. can

As another example, the augmented reality implementation unit 150 may include an inclination sensor that detects an up and down tilt. The model information control unit 120 further considers the above-described azimuth as well as the position of the up and down concept of the augmented reality implementation unit, that is, the inclination angle (pitch angle), for a more accurate location determination of the augmented reality implementation unit 150, augmented reality. The location of the implementation unit 150 may be calculated or corrected. In addition, the position of the augmented reality implementation unit 150 may be calculated or corrected based on the inclination angle information and the three-dimensional position information previously measured for each of the three or more markers. The model information control unit 120 calculates the position of the augmented reality implementation unit 150 through a known triangulation technique, etc., based on the three-dimensional position of each marker and the inclination angle information of each marker through the marker position information, or can be corrected.

The BIM model-based construction site recognition method according to an embodiment of the present application may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the present invention, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and carry out program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

The above description of the present application is for illustration, and those of ordinary skill in the art to which the present application pertains will understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present application. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope of the present application is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present application.

10: drawings
11: Code identifier
12, 13, 14: marker
100: BIM model-based construction site recognition device
110: model information receiver
120: model information control unit
130: user input receiving unit
140: communication department
150: augmented reality implementation unit
200: three-dimensional model
300: BIM providing server

Claims (8)

As a construction site recognition method based on a BIM model using a construction site recognition device,
(a) receiving BIM model information corresponding to at least one of the plurality of drawings based on a code identifier associated with at least one of a plurality of drawings corresponding to a construction structure constructed at the site;
(b) displaying the received BIM model information as a three-dimensional model;
(c) receiving a user input with respect to an area in which the 3D model is displayed; and
(d) transmitting the user input result to the outside;
The step (c) is,
(c1) three-dimensionally rotating the three-dimensional model in response to a user input; and
(c2) comprising the step of making a user display about the construction structure on the area in response to a user input,
The first rotation view is set in the step (c1), the first user display is two-dimensionally performed based on the first rotation view in the step (c2), and the first rotation view is again performed in the step (c1) If a second rotation view different from the view is set and the second user display is made two-dimensionally based on the second rotation view in step (c2),
In the step (d), in the result of the user input, the two-dimensional position where the first user display is made in the first rotation view and the two-dimensional position where the second user display is made in the second rotation view are the 3 Information on the three-dimensional intersection position that intersects each other on the dimensional model is included,
The three-dimensional intersecting position is a first zoning space that is columnarized to correspond to the display area in the screen normal direction in the first rotation view and is columnarized to correspond to the display area in the screen normal direction in the second rotation view. A method for recognizing a construction site based on a BIM model, which is a location within a common area where the second zoning space intersects. delete delete According to claim 1,
The construction site recognition device includes an augmented reality implementation unit,
In the step (b), the three-dimensional model is displayed in response to the expected location of the construction structure at the site through the augmented reality implementation unit, BIM model-based construction site recognition method. 5. The method of claim 4,
Step (b) is,
(b1) obtaining marker position information for three or more markers arranged in a state in which each three-dimensional position is pre-measured at the site based on the position of the augmented reality implementation unit; and
(b2) a BIM model-based construction site recognition method comprising the step of calculating or correcting the location of the augmented reality implementation unit in consideration of the acquired marker location information. As a BIM model-based construction site recognition device,
a model information receiver for receiving BIM model information corresponding to at least one of the plurality of drawings based on a code identifier associated with at least one of a plurality of drawings corresponding to a construction structure constructed at the site;
a model information controller configured to display the received BIM model information as a three-dimensional model;
a user input receiving unit for receiving a user input with respect to the area in which the 3D model is displayed; and
and a communication unit for transmitting the user input result to the outside;
The user input receiving unit rotates the three-dimensional model three-dimensionally in response to the user input,
The model information control unit performs a user display regarding the construction structure on the area in response to a user input,
A first rotation view is set in response to the user input, a first user display is made two-dimensionally based on the first rotation view, and a second rotation different from the first rotation view is set in response to the user input When a view is set and the second user display is made two-dimensionally based on the second rotation view, the user input result includes the two-dimensional position where the first user display is made in the first rotation view and the Information on a three-dimensional intersection position where the two-dimensional position where the second user mark is made in the second rotation view intersects each other on the three-dimensional model is included;
The three-dimensional intersecting position is a first zoning space that is columnarized to correspond to the display area in the screen normal direction in the first rotation view and is columnarized to correspond to the display area in the screen normal direction in the second rotation view. A construction site recognition device based on a BIM model, which is a location in a common area where the second zoning space intersects. delete delete

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