KR100777373B1 - Methodology Using 4D CAD System for Civil Engineering Project by Integration of 3D Object and Schedule - Google Patents

Abstract

In the present invention, parts and structures of a facility are constructed in a three-dimensional form in a construction work, and the completion state of each work progress schedule is continuously realized in a three-dimensional shape, thereby visualizing the progress of the process, Dimensional construction work process management system and its implementation method.

For this purpose, the present invention has constructed a method of constructing an automatic terrain triangle capable of visualization by color classification according to design part, and in real-time, The morphing technique was developed and implemented in the system.

In addition, the present invention has developed a visual progress management expression technique that expresses the progress management state of the actual progress schedule with respect to the planned construction schedule in three dimensions with different colors according to the site and structure for the delay and excess schedule, Along with 4D implementation, introduces the function to grasp the problem in advance by virtually showing the actual use state such as simulation running in conjunction with the virtual reality (VR) function.

In addition, the present invention constitutes a wireless communication use function for obtaining 4D construction information in the field. In order to realize a comprehensive 4D implementation of a wide area site, a key map capable of selectively implementing 4D on a screen ranging from a wide- ) Function.

In addition, a key map function that can selectively implement 4D on the screen from the wide area to the detailed structure range is constructed for the comprehensive 4D implementation of the wide area field.

Furthermore, in order to perform these functions completed according to the construction schedule, the present invention is configured such that the construction schedule calculation, the three-dimensional configuration for each object, the 4D implementation, and the virtual reality implementation functions are all performed by the built- Integrated management of my information and implementation of related functions at each level.

Description

[0001] The present invention relates to a 4-dimensional construction process management system for a civil engineering facility linked to a three-dimensional object and a schedule,

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram for explaining a 4D CAD process management system for construction work according to the present invention;

FIG. 2 is a view for explaining 3D object display according to the standard construction information classification system creation function and the standard construction information classification system structure according to the present invention by the built-in standard construction information classification system,

FIG. 3 is a view for explaining a function of linking external tools and creating a self-schedule of construction schedule information in 4D CAD according to the present invention;

4 is a diagram for explaining a self-generating function configuration of 3-dimensional information in a 4D CAD according to the present invention,

FIG. 5 is a view for explaining a schedule and a three-dimensional object information association method using a standard construction information classification system according to the present invention as a common medium.

FIG. 6 is a diagram for explaining and comparing the result of applying the generalized morphing technique and the earthwork section 4D model according to the modified morphing technique of the present invention,

FIG. 7 is a view for explaining a three-dimensional shape change expression technique of construction work of earthworks associated with an actual operation of the present invention,

8 is a diagram for explaining a method for constructing a terrain triangular network to which a surface processing attribute of the present invention is added,

9 is a diagram showing before and after the application of the triangular network technique in which the face processing attribute of the present invention is automatically assigned,

10 is a diagram for explaining a state in which basic functions of a 4D CAD system according to the present invention are implemented,

11 is a view for explaining a representation of a 4D implementation according to the standard construction information classification system level according to the present invention,

12 is a diagram for explaining a method of implementing the progress management function of the 4D CAD process management system according to the present invention,

FIG. 13 is a view for explaining a key map implementation method for the overall tool of the present invention and a comprehensive 4D implementation of a wide-area construction site.

Description of the Related Art

1 --- Standard Construction Information Classification System Generator (WBS Generator),

2 --- 3D Modeler,

3 --- Schedule Modeler,

5 --- 4D Planner.

The present invention relates to a four-dimensional construction work process management system and a method for realizing the four-dimensional construction work process management system, The present invention relates to a four-dimensional construction work process management system and an implementation method thereof, which can be utilized as an efficient decision-making tool for construction work management by providing visual information that relies on numerical information utilization.

In the conventional construction work process management system, since the information output using the input information of the construction schedule is composed of the numerical results, such as the planned construction schedule and the plan-to-progress management data, the orderer, the constructor, It is a reality that the utilization of computerized system is very low because it is not utilized as a main decision - making tool.

In addition, when an artificial member such as a wall, a slab, and a pipe is used as the construction work, the work is performed as a vertical repetitive operation. Therefore, when constructing a visualized process management system, 4D implementation by schedule can be simplified. However, 3-D visualization of completion status of horizontally progressing processes that require natural terrain conditions such as civil engineering work should be done in domestic and foreign No attempt has been made.

In particular, it is difficult to implement the progress management function, which is absolutely required for the management of the construction site, because conventional systems merely focus on the basic function of implementing the completed state by the construction schedule originally planned, It was not used as a practical process management tool.

In other words, since conventional visualization tools of the process information have a fragmented and uniform 4D implementation method from the beginning to the completion time, there is no 4D implementation method for centralized management by each construction site and major structure, It is a fact that gender is declining.

Therefore, in the conventional method, the field utilization of the 4D CAD system is remarkably deteriorated, and the virtual reality function for the completion state at a certain time point is not implemented, so that the utilization state of the actual facility for the 4D completion state is virtually implemented It is difficult to grasp problems in using the completed facilities in advance.

In addition, since the linking technology of the wireless communication function is not developed, the 4D input of the site construction information is input through the actual measurement process by the manual operation, which is a factor of lowering the utilization.

Therefore, in recent years, it is absolutely required that information of construction management process management is changed to visualized information by utilizing various information tools of the construction site. In order to visualize the process management tools that depend on conventional numerical information The need for a 4D CAD process management system that continuously implements the completion status by construction schedule in three dimensions is urgently needed.

In addition, the implementation of such a system should have a substitution effect of the process management tool including the functions of the existing numerical process management tool, but the conventional system has only a very fragmented function as described above in the early stage of the related art Implementation of Retention Function There is a need for a new method for improving usability because information configuration and implementation system for 4D implementation are not typified and simplified.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a four-dimensional construction work process management system and method for realizing the visualized process information by improving the problems of the conventional process management system, The purpose is to provide.

In other words, in addition to the basic functions of 4D CAD that continuously integrates finished parts according to construction schedule and schedule in 3-dimensional objects, it can be applied to civil engineering works that include horizontally working works including the earthquake excavation work, The present invention aims at providing a four-dimensional construction work process management system capable of managing management functions, wireless communication linkage functions, and process management by process level, and its implementation method.

According to an aspect of the present invention, there is provided a four-dimensional construction process management system for continuously visualizing and visualizing three-dimensional completion states according to construction schedule according to the present invention includes a standard construction information classification system (WBS) In addition to the built-in structure generator, when the general design specifications such as the plane coordinates, the ending specifications and the crossing specifications are entered in the road design, the three-dimensional objects are automatically generated and automatically constructed by the three-dimensional modeling; When configuring 3D objects The 3D modeling of the 3D object information and the external file linking method, which can construct the 3D object of the desired site according to the WBS level, ; In order to generate the construction schedule information used in 4D CAD, the function that can utilize the result information using the external process management tool without any modification in the system and to use it in conjunction with the system is configured, and the construction schedule information is newly created in the system It has scheduling information generation function that can generate, and it is possible to manage all construction schedule information by WBS code level, so that it is possible to create schedule and process expression as much as level by level, A schedule modeler of schedule information self creation and external file association scheme that enables management; 4D Planner with Virtual Realty (VR) function for virtual reality function and remote site management function by wireless communication information, 4D implementation for specific period / specific area, 4D implementation for each WBS level and visualization of planned process to progress management .

Also, a method for successively implementing the three-dimensional finished state according to the construction schedule by using the four-dimensional construction work process management system according to the present invention includes a method of systematically coding the facility type, structure type, Construction information classification system is constructed in the system, and all the 4D CAD related information such as construction schedule, 3-dimensional object per site, 4D implementation, and virtual reality are selectively configured according to the process detail level of the WBS code.

In addition, a method for successively realizing three-dimensional completion states for each construction schedule by using a four-dimensional construction work process management system according to the present invention includes: 4D information of the completed part and virtual reality (VR) function can be implemented at any time, and the entire construction area and the entire construction area, which are horizontally laid out for the comprehensive process management of the wide area site, And a comprehensive 4D implementation function for an arbitrary area selected from a key map.

In addition, a method for successively implementing the three-dimensional finished state according to the construction schedule by using the four-dimensional construction work process management system according to the present invention includes: By adding processing attributes, we can automatically classify the shape of object of design part such as cut, fill, and structure, remove plan triangulation based on overlapping part of base triangulation, It is possible to minimize the workload for the 4D implementation by making the two triangles textured as synthesized without synthesizing the terrain triangulation network and the planned triangulation network minimized, In order to realize the sectional shape changing according to the stepwise construction up to the section in detail 4D, By applying the modified morphing technique to the definite three-dimensional completion state representation, the 3D object generated from the cross-sectional difference is automatically segmented by the 3D objects corresponding to the volume change similar to the shape change according to the work schedule progression .

Further, a method for successively implementing the three-dimensional completed state according to the construction schedule by using the four-dimensional construction work process management system according to the present invention is characterized in that, at the time of visualization of the work progress management information in the 4D CAD system Process management method that visualizes the excess and delayed parts as divided color of three-dimensional objects by checking the completion status against the process plan and displays them according to the progress schedule, and receives the progress information of the construction site by using the wireless communication device It is possible to realize continuous 3D objects with complete state of the main process in the main process and to visualize the entire facility area on the screen and then select any part with the mouse The 3D object can be easily linked with the schedule for the selected region.

(Example)

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

The present invention solves the problems of the construction process management and develops a function-specific configuration method of the 4D CAD system that can solve the obstacle factor for constructing the visual process management tool of the civil engineering facility including the building facility, .

1, the 4-dimensional construction work process management system according to the present invention includes a standard construction information classification system generator 1 (WBS Generator 1) having a built-in standard construction information classification system, Schedule Modeler 3 (Schedule Modeler), Schedule Modeler (Scheme Modeler), schedule 4D implementation and WBS level 4D Implementation and Plan Progress / progress of 3D modeler (2; 3D Modeler) And a 4D planner (5; 4D Planner) having a management visualization function.

Hereinafter, the method and system of the 4D CAD system constructed in the present invention will be collectively referred to as a V-CPM (Virtual Construction Project Manager). In order to enhance practical application, V-CPM has developed algorithms for many creative functions, and designed a user-friendly system to simplify the initial information utilization.

1, the conventional system is composed mainly of a 4D planner, which is a representation center of a state of completion of a three-dimensional facility compared to a schedule. In the present invention, however, the external CAD and the process Introduced 3D modeler (2) of external file linking method, scheduling information self-generation and schedule file modeling method of external file linkage (3), self-generation of 3D object information that can organize drawing information and schedule information by itself without management system Respectively.

In addition to the basic 4D CAD function, the VR (Virtual Realty) function for the virtual reality function is added to the 4D planner 5 of FIG. 1, and the remote site management function by wireless communication, that is, . Specific features of the present invention are as follows.

1) A method of setting the center of 4D CAD system information by standard construction information classification system

4D system uses various information such as construction schedule, drawing, cost, and 4D information, which is initial information, and therefore, it is necessary to introduce a role as a central body of utilization information for efficient information management. In the present invention, , 4D (4D) implementation functions are applied to all the functions of the 4D system by applying the information centroid method by the standard construction information classification system (WBS) We have developed a method to be implemented by interworking based on the code of WBS and used it as basic information of 4D system.

In particular, the various process information related to the construction schedule and the drawing information for the 3D object construction are the core information, which is an information-centric code that can systematically manage these information in the 4D DB (Database) The 4D CAD system is designed to be operated at the level of the WBS code so that the related functions can be implemented at the management level as desired. . For this purpose, the WBS code embedded in the database is divided into facility, space, and site within the system, and the WBS code for the new project is selectively constructed on the screen by using the facility. 1 shows that the standard construction information classification system generator generates the WBS information, and the generated WBS has the 4D CAD system information center function. FIG. 2 shows the construction of the WBS according to the project in the built-in WBS .

2) Configuration of external file association and self-generation function of construction schedule information in 4D CAD

In the present invention, the function for retrieving the result information using an external process management tool for creating construction schedule information to be used in 4D CAD without any modification in the system is constituted. In addition, A schedule information generation function capable of newly generating schedule information is also configured. This greatly improves the work schedule management function of 4D CAD by enabling both the utilization of the results of the existing tools and the self-generation function of the construction schedule information. In addition, the construction schedule information can be managed according to the WBS code level, enabling the schedule creation and process representation as much as the WBS code level, enabling intensive process management by management level or construction site and major structures. 3 shows the function of generating the construction schedule information.

3) Configuration of external file association and self-generation function of 3-dimensional object information per 4D CAD in construction part

In the 4D CAD, a three-dimensional object structure of the finished part is required for realization of the finished state according to the schedule. In the present invention, the function for simplifying the generation of a linear 3D object such as a road facility is constituted only by inputting basic linear information. In the present invention, a 3D file created by an external CAD tool can be used for importing, and a convenience of constructing a 3D object is provided by introducing a binary method capable of generating 3D information without CAD itself.

Since a civil engineer working in a horizontal direction consumes a lot of time for constructing a coordinate value as a 3D model, a method of automatically generating a 3D model from the 2D information of the structure and the sectional cross section of the section is required, It is necessary to have a method of effectively combining the topographic triangulation calculated from the digital map and the planned triangulation of the planned section. For this purpose, we developed an algorithm that can automatically generate 3D objects based on linear / traverse basis information. In other words, in the road design, when the general design specifications such as the plane coordinate, the ending specification, and the traverse specification are inputted, the three-dimensional object is automatically generated and constructed by the three-dimensional modeling.

Also, when constructing a 3D object, it is possible to organize 3D objects at the desired level according to the level of WBS in the entire facility by configuring the connection between objects and the connection relation to the schedule as a code for WBS rather than a layer (AutoCAD layer) concept. Respectively.

FIG. 4 shows a state in which a 3D CAD system itself generates three-dimensional information including a topographical triangle without CAD.

4) Simplification method of construction schedule information and 3D object information by standard construction information classification system

The linkage between the schedule information and the three-dimensional object information includes a method of linking the information created by the external tool to the 4D CAD system and a method of internally linking each schedule and 3D information generated by the 4D CAD system itself. Both of these methods can be used, and all of these information linkages can be greatly reduced by linking the standard construction information classification system (WBS), which is commonly used in the system, as a key field .

That is, in order to configure the schedule information in the schedule management module, the schedule information is directly generated based on the code and the job name of the WBS provided in advance, and when the drawing information is configured, the corresponding drawing object information . In this method, the schedule information and the drawing object information are all stored based on the same WBS code, so that the 4D implementation is a system in which the automatic interworking is not necessary. The schedule in the construction of the visualized process management system and the method of linking the three-dimensional object information are essential matters, and this method proposed in the present invention is the first attempted method at home and abroad. Fig. 5 shows a linking system using WBS as a common code.

5) Simplified configuration of horizontal object 3D object information

Since civil engineering facilities have horizontally advanced work space, many layer work related to terrain conditions such as contour lines is required for 4D information to be implemented horizontally. In addition, ancillary functions are required to realize the natural terrain conditions such as the mountain area near the facilities to be expressed regardless of the construction schedule and the cutting ground. The present invention includes a 4D implementation of the horizontal work station that facilitates 4D implementation of such civil engineering facilities. That is, the facility shape of the entire construction section including the earthwork section, the bridge, and the tunnel section is horizontally expanded on the screen, and the 4D screen for the selected section is implemented when the user selects the desired section horizontally. This method is very effective for the process control of the facilities that are horizontally operated because of the long extension of construction such as civil engineering work.

6) Development of 4D implementation method of 3-dimensional completed state according to the changing state of natural terrain such as earthworks

Earthworks section is not constructed on a member or site basis, and its cross-sectional shape is changed by stepwise construction from natural topography to planned section. In order to realize the earthwork section by 4D according to the schedule, a new concept implementation method that can overcome the limitation of the existing 3D object creation method is needed. In other words, if the volume corresponding to the difference between the natural terrain and the planned section is created as one 3D object, only the two steps of the original ground and the final completed section can be visually confirmed. Therefore, It becomes impossible.

Therefore, in order to express the detailed process progress, the 3D object generated from the cross-sectional difference should be generated by dividing the 3D object corresponding to the volume change similar to the shape change according to the progress of the work. In the present invention, a modified morphing technique is applied for expressing the three-dimensional finished state of the ground interval.

That is, as shown in FIG. 6 (a), when the earthworking operation is implemented by applying the general morphing concept, the distance between both end points in the vertical direction is divided by n and reaches the final point. do. As shown in FIG. 6 (b), the actual earthwork work progresses stepwise in the form of a horizontal layer perpendicular to the gravity direction. In the present invention, the work progress process is implemented in such a shape. The method of implementing earthworker's 4D information in a similar way is the first attempt at home and abroad. The result of 4D implementation by the modified morphing technique is shown in FIG.

7) Simplification of triangular network configuration method for 4D implementation of natural terrain

In the triangular network configuration method proposed in the present invention, a separate attribute (P1 (x, y, z), P2 (x, y, z) in FIG. 8 for the plane configuration of the triangle is added to each coordinate value used in the existing Delroy triangle configuration method (x, y, z), P3 (x, y, z) and P4 (r). To do this, we added a triangular network configuration attribute to have unique layer attribute values for all objects on the digital map. Separated triangulation by layer attribute can reduce the additional task of attribute change by automating the layer division according to the elements in comparison with existing single triangulation method.

This method can be used as a method to complement the points where it is difficult to distinguish between design objects by expressing structure objects such as earthwork, bridges, and tunnels with the same attributes when using the existing triangular mesh technique. That is, in the proposed method, since the bridge and the tunnel section can be separated from the earthwork section and separated into separate attributes, the visualized object information can be provided in the 4D implementation and the virtual reality application in the present invention. FIG. 9 shows the state before (a) and after (b) of the application of the triangular mesh technique. In the improved state after application, it can be seen that the object classification by the parts such as buried soil, cut soil, and bridge is clear.

8) Synthetic efficiency of topographical triangulation and planned triangulation by texturing

In order to realize the 3D objectization of earthworks section, it is necessary to synthesize the 3D object of the planned section with the 3D object of the ground surface. For this, 3D object synthesis technique for the ground surface and the planned section is required. In the present invention, it is possible to minimize the amount of terrain triangulation work for the 4D implementation by making the two triangles appear to be synthesized without combining the terrain triangulation and the planned triangulation. Method.

In other words, the planned triangulated network generated from the planned section recognizes the boundaries of overlapping parts in the terrain triangulation network, eliminates the overlapping part of the terrain triangulation based on the boundary line, and automatically synthesizes the connection between the triangulation networks based on the boundary line As a method, it is possible to minimize the workload for the 4D implementation by making the two triangles textured as synthesized without synthesizing the terrain triangle network and the planned triangle network.

9) Continuous Implementation of 3-D Completion Status according to the Construction Schedule of Standard Classification System

The basic contents for process management visualization is to visualize the completion status of each part by construction schedule in a visual manner, and it is a key point of process control 4D CAD system. In the present invention, besides the basic 4D implementation function, 4D can be implemented for the tasks that are performed only for a specific period of a project and a specific construction site.

In particular, it is possible to implement 4D only the processes corresponding to the process level on the basis of the code selected in the WBS, and to implement the 4D during the arbitrary period for the WBS selection process, And to act as a decision maker. The visualization of process management information for each management level by the standard construction information classification system is the first attempt at home and abroad.

FIG. 10 shows a state of implementing the basic functions of the 4D CAD system implemented in the present invention, and FIG. 11 shows a state in which schedule information, three-dimensional object information, and 4D information are freely implemented according to the code level of the standard construction information classification system .

10) Expression method of construction progress management function in 4D CAD

In the process management, the progress management function is a function to review the progress of the construction schedule compared to the plan after the construction is actually started. In order to visualize the process management information, it is necessary to visually grasp whether the current progress is over or delayed compared to the plan Is required.

To accomplish this, in the present invention, first, the total progress rate by the elapsed time period is automatically calculated when the construction progresses as planned, and the function of successively realizing the three-dimensional completion state in the 4D CAD linked to the progress rate is constituted. Second, After that, a method of automatically comparing the progress rate of the actual construction with the planned one was constructed, and a method of visually expressing the current progress state by dividing the construction part exceeding the schedule and the delayed construction part into the three dimensional color was constructed. This progress management function is also configured so that it can be grasped by WBS level. Fig. 12 shows this progress management function.

11) Virtual reality connection method of 4D implementation result

In the present invention, virtual reality (VR) function is presented to the completed facilities as a result of 4D CAD implementation, and the virtual actual usage state of the completed facilities up to the present time is expressed by an animation technique, And the actual state of the situation is simulated, so that it is possible to preliminarily verify the complement of the design.

12) Comprehensive 4D implementation of wide area construction area

Civil engineers, such as roads and residential development, have a long and extensive site, so it is necessary to have a comprehensive 4D implementation function for the entire site or zone in addition to the 4D implementation for each structure or site.

In order to perform such a function, a key map function is configured to select a desired region in the key map, thereby constructing a comprehensive 4D structure of the immediately selected region. This method is the first attempt at home and abroad, and it is possible to realize 4D implementation of detailed structure and comprehensive 4D implementation of wide area including corresponding structure, so that tool-specific process management can be visualized.

13) 4D system connection method of on-site construction information by wireless mobile communication function

According to the present invention, if process progress information generated on a construction site is transmitted to a 4D system in real time using a PDA or the like in the field, the progress information is used as input information immediately for progress management of the 4D system, And the 4D implementation of real-time progress management becomes possible.

As described above, it is needless to say that the present invention can be variously modified and carried out within the scope not departing from the object and background of the present invention, as well as the above-mentioned embodiments.

As described above, according to the present invention, all the construction sites of various construction projects currently use the process management tools, and the conventional process management tools express the process data by numerical information, , The present invention has the effect of replacing the process management tools of the conventional implementation by continuous implementation and visualization of the three-dimensional completion state for each construction schedule.

In particular, the 4D CAD implementation method by the 3-dimensional complete state continuous representation technique of the natural terrain for the civil engineers including the earthworks in the natural terrain and the 4D representation technique by the construction information classification code etc. This method can be used as a representative tool of construction informatization along with the recent construction of various information tools, and greatly improved the efficiency of computerized construction management by visualized process information expression. .

In addition, there are computerized process management tools at all sites, and these tools are difficult numerical information expressions and the utilization is only about 30%. On the other hand, the method proposed by the present invention and the application of the developed system are computerized As the utilization of tools can be improved up to 90%, it is expected that the efficiency of construction management work will be greatly improved with minimum cost.

In addition, considering the fact that the techniques of construction management are being visualized with the recent promotion of construction informatization, the present invention has a direct effect on the process management technique which requires the most visualization of information, It is expected that this will lead to the breakthrough development of vulnerable domestic construction work process management techniques, and it will have the effect of securing international leading technology considering that the present time is the time of diffusion of related technology internationally.

Claims (5)

delete A method for implementing a four-dimensional construction work process management system for continuously implementing a three-dimensional completed work process information by construction schedule using a four-dimensional construction work process management system, Construction work that continuously realizes 3-dimensional completion status of facilities by construction schedule including earthworks. 4D CAD Work Breakdown Structure (WBS) systematically codes facility type, structure type, , 4D CAD related information such as construction schedule, 3-dimensional and 4-dimensional object implementation for each part can be freely configured according to the process detail level of the WBS code, When the 3D and 4D object information of the earthworker is linked to the WBS code described above, morphing technique modified to 3-dimensional object representation of the earth section is applied from the natural topography to the planned section The 3D object generated from the cross-sectional difference is automatically segmented into 3D objects corresponding to the volume change similar to the shape change according to the work schedule progress. Dimensional object is generated in association with the earthworker's WBS code. delete delete delete

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