Planning drawing production support system

Abstract

To provide a plan drawing creation support system capable of achieving efficient work by an accurate and appropriate plan drawing to suppress work cost and occurrence of an unexpected load.SOLUTION: A plan drawing creation support system includes: a three-dimensional plan drawing information generation unit 240 for generating three-dimensional plan drawing information by referring to two-dimensional plan drawing information; a three-dimensional current state drawing information generation unit 260 for generating three-dimensional current state drawing information by referring to reference point survey information, three-dimensional point group data information, and surface data information; and a three-dimensional virtual design drawing information generation unit 260 for generating three-dimensional virtual design drawing information by referring to three-dimensional current state drawing information and the three-dimensional plan drawing information.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a plan drawing creation support system that can obtain accurate construction quantities in construction plans such as civil engineering by converting two-dimensional plan data into three-dimensional data, which is useful for implementation management.

Background Art

[0002] Conventionally, for example, in civil engineering construction, when starting construction based on a construction plan drawn on paper and a contradiction occurs with the plan during the process, the construction plan is reviewed each time and the work process is changed accordingly. As a result, the number of processes, including rework, has increased significantly, leading to a situation where unexpected loads, including construction costs, have increased.

[0003] Moreover, the work of reviewing the construction plan requires a great deal of labor and time. Even when using 2D CAD or 3D CAD, the amount of data to be input is large, imposing a great load.

[0004] Patent Document 1 discloses an architectural drawing data conversion program and an architectural drawing data conversion device that can create data capable of three-dimensionally displaying a building represented by the architectural drawing data from the architectural drawing data drawn by 2D CAD or the like.

[0005] Patent Document 2 discloses a drawing projection system capable of projecting drawing information in accordance with the position and scale in the real space. This eliminates the need for the conventional complicated tracing work, and also improves work efficiency by superimposing the actual construction situation and the design drawings in the inspection and completion check processes after construction.

[0006] Patent Document 3 discloses a surveying method that can accurately create a true plan drawing according to the current situation and can significantly shorten the working time without requiring proficiency in creating the current situation drawing.

Prior Art Documents

Patent Documents

[0007] [Patent Document 1] Patent No. 4341980 [Patent Document 2] Patent No. 6438995 [Patent Document 3] Japanese Patent Publication No. 2020-30152 [Overview of the project] [Problems that the invention aims to solve]

[0008] Ideally, a plan that accurately reflects the current situation should be created before construction begins. For example, accurately converting a 2D plan into a 3D plan is highly desirable to enable accurate estimation of construction quantities, reduction and minimization of staking work, and sharing of a clear image of the completed project. However, currently, no solution exists that can meet these requirements.

[0009] Furthermore, considering the recent trend towards SDGs (Sustainable Development Goals), the disposal of unexpected work, unplanned cuts and fills, or excavated soil is by no means desirable.

[0010] The method disclosed in Patent Document 1 is a method for converting architectural drawing data that enables the creation of data capable of displaying buildings three-dimensionally from architectural drawing data drawn with 2D CAD, etc., and does not satisfy the above requirements.

[0011] The invention disclosed in Patent Document 2 eliminates the need for conventional marking-out work by enabling the projection of drawing information to match the position and scale in real space, and therefore does not satisfy the above requirements.

[0012] The method disclosed in Patent Document 3 allows for the creation of 3D image data based on existing conditions drawings and plan drawings, but it does not satisfy all of the above requirements.

[0013] This invention has been made in consideration of the above circumstances, and aims to provide a planning drawing creation support system that enables the early detection of inconsistencies in plans through accurate and appropriate planning drawings, reduces and minimizes the need for revisions and rework, and suppresses unnecessary work processes, work costs, and unexpected burdens. Furthermore, the present invention aims to provide a planning drawing creation support system that enables accurate prior identification of excavated soil, fill, or other excavated materials, as well as the appropriate prior identification of various materials required for construction. Furthermore, the present invention aims to provide a planning drawing creation support system that enables the reduction and minimization of staking work and the sharing of an image of the completed construction project. [Means for solving the problem]

[0014] The present invention is characterized by having the following configuration in order to achieve the above objective.

[0015] (1) A two-dimensional plan information storage means that stores two-dimensional plan information consisting of a plan view information having X-axis coordinate information and Y-axis coordinate information of an object on a desk, as well as a side view information, a cross-sectional view information or a transverse view information; a three-dimensional plan information generation means that generates three-dimensional plan information having X-axis coordinate information, Y-axis coordinate information and Z-axis coordinate information of an object on a desk by referring to the two-dimensional plan information stored in the two-dimensional plan information storage means; a comparison means that compares the three-dimensional plan information generated by the three-dimensional plan information generation means with a set standard information; a correction means that performs a correction process on information that is outside the threshold of the standard information by the comparison means; and a control point survey that is performed in the real space where the object is located at the same coordinate points as the X-axis coordinate information and Y-axis coordinate information in the plan view information of the object. The system is characterized by comprising: a control point surveying information generation means for generating information; a 3D point cloud data information acquisition and generation means for measuring the real space by referring to the control point information generated by the control point surveying information generation means and acquiring and generating 3D point cloud data information of the current situation; a conversion means for converting the 3D point cloud data information acquired and generated by the 3D point cloud data information acquisition and generation means into surface data information of the current situation; a 3D current situation map information generation means for generating 3D current situation map information by referring to the surface data information converted by the conversion means and the control point information; and a 3D virtual design map information generation means for generating 3D virtual design map information by referring to the 3D current situation map information generated by the 3D current situation map information generation means and the 3D plan information or 3D plan information corrected by the correction means.

[0016] (2) The configuration of (1) above is characterized by being provided with a transmission means that has the function of sending the 3D virtual design information generated by the 3D virtual design information generation means to the outside.

[0017] (3) The configuration of (1) or (2) above is characterized in that a means for assigning association information is provided which has the function of associating construction area information and component information required for the object on the desk with the 3D plan information generated by the 3D plan information generation means.

[0018] (4) In the configuration of (3) above, there is provided a providing means for providing detailed member information recommended by referring to the three-dimensional plan drawing information, the construction site information, and the member information in the three-dimensional virtual design drawing information generated by the three-dimensional virtual design drawing information generating means.

[0019] (5) In the configuration of (1), (2), (3), or (4) above, there are provided a photographing means for photographing the real space where the object to be provided is to be provided, a composite reality information generating means for generating composite reality information by fusing the three-dimensional virtual design drawing information with the photographing information photographed by this photographing means, and an output means for outputting the composite reality information generated by this composite reality information generating means.

[0020] According to the above configuration, it is possible to detect contradictions in the plan at an early stage in advance with accurate and appropriate plan drawings, reduce or eliminate the need for rechecking or redoing work, and suppress the occurrence of unnecessary work processes, work costs, and unexpected loads.

[0021] Also, according to the above configuration, it is possible to accurately grasp in advance the situation of earth cutting, earth filling, or excavation waste soil, etc., and furthermore, it is possible to appropriately grasp various members required for construction in advance, so appropriate construction management can be carried out, and optimal prior preparation can be made in terms of portfolio.

[0022] Furthermore, according to the above configuration, it is possible to reduce or minimize troublesome trowel work, and the finished image after the construction can be shared among all the people involved in the construction without any differences.

[0023] Furthermore, according to the above configuration, it can be realized without introducing new hardware, so it is practical and extremely useful economically.

[0024] Furthermore, according to the above configuration, it is possible to provide a plan drawing creation support system that is also beneficial from the perspective of SDGs.

Advantages of the Invention

[0025] According to the present invention, accurate and appropriate three-dimensional planning drawings enable early detection of inconsistencies in the plan, thereby reducing or eliminating the need for work revisions or rework, and suppressing unnecessary work processes, work costs, and the occurrence of unexpected burdens. Furthermore, according to the present invention, the conditions of cut, fill, or excavated soil can be accurately grasped in advance, and the various materials required for construction can be appropriately determined in advance, enabling efficient and effective construction work. Furthermore, according to the present invention, the amount of staking work can be reduced or decreased, and the same image can be shared after the completion of construction work, thus achieving practical and useful effects. [Brief explanation of the drawing]

[0026] [Figure 1] This diagram schematically shows the overall configuration of a planning drawing creation support system according to one embodiment of the present invention. [Figure 2] This diagram schematically shows the configuration of the planning drawing creation support server in relation to the same embodiment. [Figure 3] This diagram schematically shows the configuration of a client terminal related to the same embodiment. [Figure 4] This diagram schematically shows the overall flow of the planning drawing creation process in relation to the same embodiment. [Figure 5] This figure shows the flow of the 3D plan information generation process related to the same embodiment. [Figure 6] This figure shows the flow of the 3D current situation map information generation process related to the same embodiment. [Figure 7] This figure shows the flow of the 3D virtual design information generation process related to the same embodiment. [Figure 8] This figure shows the flow of mixed reality information generation and display processing related to the same embodiment. [Modes for carrying out the invention]

[0027] One embodiment of the present invention will be described below with reference to the drawings.

[0028] The planning drawing creation support system according to this embodiment consists of a planning drawing creation support server 200 (hereinafter referred to as "server 200") connected to a communication network 100, and a current condition surveying instrument 500, a total station 700 (hereinafter referred to as "TS700"), and a client terminal 800 connected to the server 200 via the communication network 100.

[0029] Server 200 is a server computer and, as shown in Figure 2, is equipped with a central control processing unit 210, an input unit 222, an output unit 224, a read / write memory 230, a 3D plan information generation unit 240, a comparison processing unit 242, a correction processing unit 246, an association information assignment processing unit 248, a 3D current situation information generation unit 250, a conversion processing unit 252, a 3D virtual design information generation unit 260, a detailed component information provision processing unit 262, and a mixed reality information generation unit 270, each connected via a signal line 280.

[0030] The central control processing unit 210 has the function of controlling the entire server 200 by referring to predetermined program information stored in the memory 230.

[0031] The input unit 222, under the management of the central control processing unit 210, has the function of receiving information sent from an external source and storing it in a predetermined storage area of ​​the memory 230. For example, it is configured to receive 2D plan information sent from the client terminal 800 and store it in a predetermined storage area of ​​the memory 230 (i.e., the 2D plan information storage area 230c). It is also configured to receive position information of measurement points sent from the current surveying instrument 500 and measurement information of angles and distances sent from the TS700, and store them in a predetermined area of ​​the memory 230.

[0032] Furthermore, the input unit 222 has the function of storing input information received from a keyboard or the like, under the management of the central control processing unit 210, in a predetermined storage area of ​​the memory 230.

[0033] The output unit 224 has output and transmission functions that output and send various types of information to the outside, under the management of the central control processing unit 210. For example, it is configured to send 3D virtual design information, which will be described later, to the client terminal 800 via the communication network 100, and to send specific information to the current condition surveying instrument 500 and TS700 via the communication network 100.

[0034] Furthermore, the output unit 224 has the function of displaying various information on an internally installed display and sending the output information to an externally connected output device, such as an HMD (Head Mounted Display) 400.

[0035] The memory 230 has a work area 230a for performing various tasks and a program information storage area 230b, which is a storage area for storing program information that the central control processing unit 210 refers to in order to perform various control processing and management.

[0036] Furthermore, the memory 230 has the following storage areas, etc. - Two-dimensional plan information storage area 230c that stores two-dimensional plan information consisting of plan view information having X-axis and Y-axis coordinate information of an object on a desk, as well as side view information, cross-sectional view information, or transverse view information. • 3D plan generation information storage area 230d where 3D plan generation program information is stored. • 3D plan information storage area 230e where the generated 3D plan information is stored. • Standard information storage area 230f where program information to be compared with pre-set standard information is stored. • Correction information storage area 230g where correction program information is stored to bring non-standard information into standard form. • A 230h memory area for reference point information where reference point surveying information, etc., transmitted from the current condition surveying instruments 500 and TS700 is stored. • 3D point cloud data information storage area 230i that stores 3D point cloud data information transmitted from the current condition surveying instrument 500. • Surface data information storage area 230j where program information for converting to surface data and converted surface data information are stored. • 3D current situation map information storage area 230k where the 3D current situation map information generation program information and the generated 3D current situation map information are stored. • 3D virtual design information storage area 230m where the program information for generating 3D virtual design information and the generated 3D virtual design information are stored. • An association information storage area 230n stores information on construction locations, component information, and program information that links these together, which are expected to be required for the object being constructed. • Program information for extracting recommended detailed component information from the generated 3D virtual design drawing information, and a detailed component information storage area 230p for storing the extracted detailed component information. • Mixed reality information memory area 230q where mixed reality information is stored, along with mixed reality generation program information that fuses real-world image information with 3D virtual design information.

[0037] The 3D plan information generation unit 240, under the management of the central control processing unit 210, has the function of generating 3D plan information that includes X-axis coordinate information, Y-axis coordinate information, and Z-axis coordinate information on a desk by referring to the 2D plan information stored in the 2D plan information storage area 230c and the 3D plan generation information storage area 230d. This generates 3D data in the same way that an unfolded drawing is assembled from digitized 2D plan information. For example, 3D data is generated from the coordinates of major points and alignment from the plan view information, from the side view information from the longitudinal alignment and planned elevation and gradient, and from the cross view information from the width and cross gradient. The generated 3D plan information is functionally configured to be stored in the 3D plan information storage area 230e.

[0038] The comparison processing unit 242, under the management of the central control processing unit 210, has the function of comparing the 3D plan information generated by the 3D plan information generation unit 240 with pre-set standard information by referring to the standard information storage area 230f. That is, the comparison processing unit 242 has the function of comparing the generated 3D plan information with threshold information related to the X-axis coordinate information, Y-axis coordinate information, and Z-axis coordinate information stored in the memory 230 and the database (DB) 300 externally connected to the server 200.

[0039] The correction processing unit 246, under the management of the central control processing unit 210, has the function of referring to the correction information storage area 230g and performing correction processing on information recognized by the comparison processing unit 242 as being outside the standard information threshold so that it falls within the standard. The information after correction processing is stored in the 3D plan information storage area 230e.

[0040] The association information assignment processing unit 248, under the management of the central control processing unit 210, has the function of referring to the association information storage area 230n and associating construction area information and component information that are expected to be required for the object with the 3D plan information generated by the 3D plan information generation unit 240 or the 3D plan information corrected by the correction processing unit 246.

[0041] This association information links, for example, any construction site (sewer pipes, steel frames on the first floor or flooring on the second floor of a building) to information such as the type and location of each component used in the construction, the area, length, and volume of the construction site. Individual information for each component (type, area, volume, length, etc.) is pre-stored in memory 230 or DB300.

[0042] The 3D current situation map information generation unit 250, under the management of the central control processing unit 210, has the function of generating 3D current situation map information by referencing the 3D current situation map information storage area 230k and combining the control point survey information stored in the control point information storage area 230h and the surface data information stored in the surface data information storage area 230j. The generated 3D current situation map information is functionally configured to be stored in the 3D current situation map information storage area 230k.

[0043] The conversion processing unit 252, under the management of the central control processing unit 210, has the function of converting 3D point cloud data information into surface data information by referring to the 3D point cloud data information storage area 230i. The converted surface data information is functionally configured to be stored in the surface data information storage area 230j. Furthermore, when converting to surface data information, it is also possible, if desired, to refer to the survey data information stored in the reference point information storage area 230h and convert it to surface data information.

[0044] The 3D virtual design information generation unit 260, under the management of the central control processing unit 210, has the function of generating 3D virtual design information by referencing the 3D virtual design information storage area 230m and combining the 3D plan information stored in the 3D plan information storage area 230e and the 3D current condition information stored in the 3D current condition information storage area 230k. The generated 3D virtual design information is functionally configured to be stored in the 3D virtual design information storage area 230m.

[0045] The detailed component information provision processing unit 262, under the management of the central control processing unit 210, has the function of providing detailed component information that is recommended to be provided to the generated 3D virtual design drawing information by referring to the detailed component information storage area 230p, as well as the 3D plan drawing information, construction site information, and component information. The recommended detailed component information is functionally configured to be stored in the detailed component information storage area 230p. Here, the detailed component information assigned to the 3D virtual design drawing information refers to specific information relevant to on-site construction, such as the specific shape, dimensions, material, and number of necessary components at each construction site, and is pre-stored in memory 230 or DB300.

[0046] The mixed reality information generation unit 270, under the management of the central control processing unit 210, has the function of generating mixed reality information by referencing the mixed reality information storage area 230q and fusing captured image information of the real space where the object to be placed will be located with 3D virtual design information. The generated mixed reality information is stored in the mixed reality information storage area 230q and displayed on, for example, the HMD 400.

[0047] DB300 is externally connected to server 200 and stores, for example, threshold information related to the X-axis coordinate information, Y-axis coordinate information, and Z-axis coordinate information, various standard information, construction site information, component information, and detailed component information in a read / write manner.

[0048] The current condition surveying instrument 500 has GNSS (Global Navigation Satellite System) surveying capabilities, a 3D laser scanner function, and input / output functions, and is capable of conducting current condition surveys. The GNSS surveying function, which receives and utilizes radio waves transmitted from satellite 600, acquires control point surveying information, and the 3D laser scanner function acquires point cloud data information of the current X-axis coordinate information, Y-axis coordinate information, and Z-axis coordinate information based on the said control point surveying information. The acquired information is configured to be sent to the server 200 via the communication network 100 using the input / output function of the current condition surveying instrument 500.

[0049] In this embodiment, the current condition surveying instrument 500 integrates the GNSS surveying function and the 3D laser scanner function, but it is of course not limited to this configuration, and the GNSS surveying instrument and the 3D laser scanner instrument may be configured as separate and independent units.

[0050] The TS700 is a surveying instrument that incorporates the functionality of a distance measuring instrument into a theodolite for measuring horizontal and vertical angles. The measured surveying information is configured to be sent to a server 200 via a communication network 100 using the input / output functions built into the TS700.

[0051] The client terminal 800 is equipped with a control processing unit 810, an input unit 820, an output unit 830, and a read / write memory 840, each connected via a signal line 850 (see Figure 3).

[0052] Here, the control processing unit 810 has the function of controlling the client terminal 800 by referring to predetermined program information stored in the memory 840.

[0053] The input unit 820, under the control of the control processing unit 810, has the function of storing input information such as key input from an internal keyboard or pen input, as well as received information sent from an external source, in the memory 840.

[0054] The output unit 830, under the control of the control processing unit 810, has the function of displaying, printing, or audio outputting various information and sending various information to the outside via the communication network 100.

[0055] The memory 840 has a work area 840a for performing various tasks and a program information storage area 840b for storing program information that the control processing unit 810 refers to in order to perform various control processing and management. Furthermore, the memory 840 has a two-dimensional plan information storage area 840c for storing two-dimensional plan information consisting of plan view information having X-axis coordinate information and Y-axis coordinate information of an object on a desk, as well as side view information, cross-sectional view information, or cross-sectional view information; a three-dimensional virtual plan information storage area 840d for storing three-dimensional virtual design information and related information sent from the server 200; and a temporary storage area for temporarily storing input information, output information, etc.

[0056] The process of creating and generating 3D virtual design information from 2D plan information, based on the above configuration, will be explained below using the 3D data conversion of civil engineering plan drawings as an example.

[0057] When two-dimensional plan information, which is civil engineering plan information held by the client terminal 800, is sent via the communication network 100, the server 200 receives it via the input unit 222 and stores the information in the two-dimensional plan information storage area 230c (see step S100 in Figure 4).

[0058] The 3D plan information generation unit 240 generates 3D plan information based on the 3D plan generation program information by referring to the received and stored 2D plan information (step S200).

[0059] On the other hand, current conditions are surveyed using the current conditions surveying instrument 500 or TS700, and the 3D current conditions map information generation unit 250 generates 3D current conditions map information by referring to 3D point cloud data information, etc., based on the 3D current conditions map information generation program information (step S300).

[0060] Subsequently, the 3D virtual design drawing information generation unit 260 generates 3D virtual design drawing information based on the 3D existing condition drawing information generation program information, by referring to the 3D plan drawing information and the 3D existing condition drawing information (step S400).

[0061] The server 200 then sends the generated 3D virtual design information and related information to the client terminal 800 that sent the 2D design information (step S500).

[0062] If desired, the mixed reality information generation unit 270 fuses the 3D virtual design information generated based on the mixed reality generation program information with the captured image information of the real space where the object to be placed will be located to generate and display mixed reality information (step S600).

[0063] Now, the process in step S200 ("3D plan information generation process") will be described in detail with reference to Figure 5.

[0064] First, the 3D plan information generation unit 240 refers to the 2D plan information and the 3D plan generation program information to generate 3D plan information having X-axis coordinate information, Y-axis coordinate information, and Z-axis coordinate information of the object on the desk (step S202).

[0065] Next, the generated 3D plan information is checked for any discrepancies or inconsistencies in coordinate points, etc., compared with the original plan information (step S204). This is done by the comparison processing unit 242, which compares it with pre-set standard information, specifically with threshold information for the X-axis coordinate information, Y-axis coordinate information, and Z-axis coordinate information.

[0066] If it is determined that the threshold is within the range (N in step S204), the generated 3D plan information is stored in the 3D plan information storage area 230e.

[0067] On the other hand, if it is determined that the value is outside the threshold (Y in step S204), the correction processing unit 246 performs a correction process to bring it within the threshold (step S206). The corrected 3D plan information is then stored in the 3D plan information storage area 230e.

[0068] Subsequently, the association information assignment processing unit 248 refers to the association information storage area 230n and associates the generated or corrected 3D plan information with construction area information and component information that are expected to be required for the object. This association information is stored in memory 230 or DB300, for example, in a table format (step S208).

[0069] Next, the process in step S300 ("3D current situation map information generation process") will be described in detail with reference to Figure 6.

[0070] First, the GNSS surveying function of the current condition surveying instrument 500 is used to acquire control point surveying information by referring to the X-axis coordinate information and Y-axis coordinate information of the 2D plan drawing (step S302).

[0071] Next, the 3D laser scanner function of the current condition surveying instrument 500 acquires 3D point cloud data information of the current X-axis coordinate information, Y-axis coordinate information, and Z-axis coordinate information based on the acquired control point survey information (step S304).

[0072] At this point, a survey is performed using the TS700 as requested (Y in step S306), and survey information is acquired (step S308).

[0073] The acquired control point survey information, 3D point cloud data information, and survey information are sent to the server 200, and the conversion processing unit 252 converts the 3D point cloud data information into surface data information (step S310). Here, the conversion processing unit 252 may combine the 3D point cloud data information and survey information to convert into surface data information.

[0074] Subsequently, the 3D current condition map information generation unit 250 synthesizes the coordinate value information and surface data information of the control point survey information to generate 3D current condition map information. This information is stored in the 3D current condition map information storage area 230k (step S312).

[0075] Next, the process in step S400 ("3D virtual design information generation process") will be described in detail with reference to Figure 7.

[0076] The 3D virtual design information generation unit 260 generates 3D virtual design information by combining the generated 3D plan information and 3D current condition information (step S402).

[0077] Here, the synthesized 3D virtual design information is checked for any discrepancies or inconsistencies in coordinate points, etc., compared with the original plan information (step S404). This is done by the comparison processing unit 242 stored in memory 240 under the management of the central control processing unit 210, and involves comparison with pre-set standard information, i.e., with various types of information such as X-axis coordinate information, Y-axis coordinate information, and Z-axis coordinate information.

[0078] If it is determined that there are no defects (N in step S404), the generated 3D virtual design information is accompanied by detailed component information that is recommended to be provided. The 3D virtual design information and detailed component information are then stored in a predetermined area of ​​the memory 230 (step S410).

[0079] On the other hand, if it is determined that there is a "defect" (Y in step S404), the data is corrected so that, for example, the coordinate information falls within a predetermined range so that the defect is resolved (step S406). After this, the corrected 3D virtual design information is accompanied by detailed component information that is recommended to be provided. The corrected 3D virtual design information, correction information, and detailed component information are then stored in a predetermined area of ​​the memory 230 (step S410).

[0080] Here, since association information is linked to the 3D plan information, the detailed component information attached to the synthesized 3D virtual design information and the corrected 3D virtual design information will allow for an appropriate understanding of, for example, the type, dimensions, and number of components required at each construction site.

[0081] The 3D virtual design information generated in this manner is stored in a predetermined storage area of ​​the memory 240 and also sent to the client terminal 800 via the output unit 224.

[0082] Finally, the process in step S600 ("Augmented Reality Information Generation and Display Processing") will be described in detail with reference to Figure 8.

[0083] A photographic device (not shown) captures the real space in which the object to be placed, and the captured image is stored as image information in a predetermined storage area of ​​the memory 240 (step S602).

[0084] The mixed reality information generation unit 270 combines and fuses this image information, location-added image information linked to the location information of the imaging equipment derived by TS700, etc., and 3D virtual plan information (step S604).

[0085] The combined and fused information is then displayed and output to the HMD400 (step S606).

[0086] This allows, for example, the completion drawing to be accurately understood and confirmed on-site before construction begins. Furthermore, during construction, the exact work location can be accurately identified and confirmed.

[0087] According to the above embodiment, inconsistencies in the plan can be detected early in advance using highly accurate plan drawing information, thereby reducing or eliminating the need for work revisions or rework, and thus suppressing unnecessary work processes, work costs, and unexpected burdens.

[0088] Furthermore, according to the above embodiment, the conditions of cut, fill, or excavated soil can be accurately grasped in advance, and the various materials required for construction can also be appropriately grasped in advance, enabling appropriate construction management and efficient and optimal preparation. Thus, the generation of waste materials can be suppressed, contributing to the reduction of CO2, and providing a system that is beneficial from the perspective of SDGs.

[0089] Furthermore, by sending the X, Y, and Z coordinate information, which has been finalized using 3D virtual plan information, to the current condition surveying instrument 500 or TS700, the work control points (work control points, work height, etc.) can be easily confirmed on the output unit (screen) of the current condition surveying instrument 500 or TS700 based on this information. As a result, the cumbersome staking work can be reduced or minimized, and the finished image after construction is completed can be shared without any discrepancies.

[0090] Furthermore, according to the above embodiment, it can be implemented without introducing new hardware, and even personnel without specialized knowledge can easily perform the work, making it extremely practical and economically useful.

[0091] In the above embodiment, the functions of the association information assignment processing unit 248 and the detailed component information provision processing unit 262 are configured to extract and assign optimal information by referring to predetermined program information and pre-configured and stored component information, but the system is not limited to this. For example, the system may also be configured to provide optimal information using deep learning and AI functions that utilize big data.

[0092] The present invention is not limited to the embodiments described above, and various modifications are possible without departing from the spirit of the invention. [Explanation of Symbols]

[0093] 100 ...communication network 200 ... Planning drawing creation support server 224 ... Output section 240 ...3D design information generation unit 242 ...Comparison Processing Unit 246 ... Correction Processing Unit 248 ... Association information assignment processing unit 250 ...3D Current Situation Map Information Generation Unit 252 ...Conversion Processing Unit 260 ...3D virtual design information generation unit 262 ...Detailed component information provision processing unit 270 ... Mixed Reality Information Generation Unit 400 …HMD 500…Current condition surveying equipment 700... Total station (TS) 800 ... Client terminal

Claims

1. A two-dimensional plan information storage means for storing two-dimensional plan information consisting of a plan view information having X-axis coordinate information and Y-axis coordinate information of an object, as well as a side view information, a cross-sectional view information or a transverse view information, A three-dimensional plan information generation means generates three-dimensional plan information having X-axis coordinate information, Y-axis coordinate information, and Z-axis coordinate information by referring to the two-dimensional plan information stored in this two-dimensional plan information storage means. A comparison means for comparing the 3D plan information generated by this 3D plan information generation means with standard information, which is a threshold value for 3D information set in advance to check for inconsistencies with the 2D plan information, This comparison means includes a correction means that performs correction processing on information that is outside the threshold of the above standard information, A means for generating reference point survey information that generates reference point information by performing a reference point survey in the real space where the object is located, using the same coordinate points as the X-axis coordinate information and Y-axis coordinate information in the plan view information of the object mentioned above, This means for acquiring and generating 3D point cloud data refers to the control point information generated by this control point surveying information generation means, measures the real space as described above, and acquires and generates 3D point cloud data information of the current state. This means for acquiring and generating 3D point cloud data information converts the 3D point cloud data information acquired and generated into the current surface data information, A three-dimensional current situation map information generation means generates three-dimensional current situation map information by referring to the surface data information converted by this conversion means and the above reference point information, A construction plan drawing creation support system characterized by comprising: a 3D virtual design drawing information generation means that generates 3D virtual design drawing information by referencing 3D current situation drawing information generated by the 3D current situation drawing information generation means and the 3D plan drawing information or 3D plan drawing information corrected by the correction means.

2. The construction plan drawing creation support system according to claim 1, further comprising a transmission means having a function for sending the 3D virtual design drawing information generated by the above-mentioned 3D virtual design drawing information generation means to an external source.

3. A construction plan drawing creation support system according to claim 1 or 2, characterized in that it is provided with association information assignment means having the function of associating construction area information and component information required for the object to be constructed with the three-dimensional plan drawing information generated by the three-dimensional plan drawing information generation means or the three-dimensional plan drawing information corrected by the correction means.

4. The construction plan drawing creation support system according to claim 3, characterized in that it is provided with a means for providing detailed component information that is recommended by referring to the three-dimensional plan information and the construction area information and component information to the three-dimensional virtual design drawing information generated by the three-dimensional virtual design drawing information generation means described above.

5. A means of photographing the real space in which the above-mentioned object will be installed, A mixed reality information generation means that generates mixed reality information by fusing the above-mentioned 3D virtual design information with the photographic information captured by this photographic means, A construction plan drawing creation support system according to claim 1, 2, 3, or 4, characterized in that it includes an output means for outputting augmented reality information generated by the augmented reality information generation means.

Images