Information management apparatus, information management method, and program

Abstract

To integrate and manage underground structures in general by a 3D model without using GPS information.SOLUTION: An information management device (1) includes: a model creation portion (11) that creates a 2D appearance model having 2D relative coordinates on the basis of a plan view and creates a 2D internal structure model having 2D relative coordinates on the basis of a longitudinal section view; a 3D absolute coordinate arithmetic section (12) that sets an external given reference point in the plan view, converts the 2D relative coordinates of the 2D appearance model into 2D absolute coordinates in each section of the appearance model, calculates 3D absolute coordinates of a model reference point using the longitudinal section view from 2D absolute coordinates of the model reference point which is set as a starting point or an end point of each section of the appearance model, and calculates 3D absolute coordinates of an internal reference point from the 3D absolute coordinates of the model reference point using the longitudinal section view; and a 3D absolute coordinate model arithmetic section (13) that converts a 3D internal structure model having 3D relative coordinates into a 3D internal structure model having 3D absolute coordinates using the 3D absolute coordinates of the internal reference point.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to an information management device, an information management method, and a program.

Background Art

[0002] Conventionally, the positions of facilities such as cables, metal fittings, sensors, and other electrical equipment inside underground structures have been managed by being described in a floor plan of the underground structure or the like. Also, the inspection information of the wall surfaces and metal fittings of underground structures is managed by a dedicated support tool, and the inspection information of sensors and other electrical equipment inside underground structures is managed individually for each facility.

[0003] Patent Document 1 describes a 3D data system and a 3D data processing method that can give personalities other than appearance to 3D modeling data. Non-Patent Document 1 describes that a highly robust result was obtained for the quality of image data by the SfM (Structure from Motion) method that combines the point clouds of a stereo camera and LiDAR (Light Detection And Ranging) compared with the conventional method. Non-Patent Document 2 describes the features of CV (Camera Vector) video that can acquire three-dimensional information from a full-surround video image.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

[0005]

Non-Patent Document 1

Non-Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] Thus, the facilities (cables, hardware, sensors, and other electrical equipment, etc.) inside the underground structure, the inspection information of the facilities, and the buried positions of the facilities are not integrated and managed by a 3D model.

[0007] As an image of the space inside the underground structure, point cloud data acquired by a laser scanner or the like is utilized. However, since the density of the point cloud data is low, the shape of facilities such as internal cables, hardware, sensors, and other electrical equipment can be recognized, but it is difficult to recognize them as objects. In addition, since the inside of the underground structure is in an environment where position information cannot be measured by GPS, the position information of the facilities is not managed as position coordinates (digital data), and there may be inconsistencies in the mutual position information based on the description of the plan view and internal structure diagram of the underground structure. Furthermore, the inspection information of the facilities is managed based on their respective position references, and information exchange and integration based on the mutual positions inside the underground structure have not been performed.

Means for Solving the Problems

[0008] In view of such circumstances, an object of the present invention is to establish a technology for integrating and managing the entire underground structure by a 3D model without using GPS information.

[0009] To solve the above problems, the information management device according to the first embodiment is a 3 for the entire underground structure An information management device that integrates and manages by means of a D model, comprising: a model creation unit that creates a 2D appearance model having 2D relative coordinates based on a plan view and creates a 2D internal structure model having 2D relative coordinates based on a longitudinal section view; a 3D absolute coordinate calculation unit that sets an externally assigned reference point on the plan view, performs a Helmert transformation on the 2D relative coordinates of the appearance model to 2D absolute coordinates in each section of the appearance model, calculates the 3D absolute coordinates of a model reference point set as a start point or an end point of each section of the appearance model using the longitudinal section view, and calculates the 3D absolute coordinates of an internal reference point from the 3D absolute coordinates of the model reference point using the longitudinal section view; and a 3D absolute coordinate model calculation unit that converts a 3D internal structure model having 3D relative coordinates into a 3D internal structure model having 3D absolute coordinates using the 3D absolute coordinates of the internal reference point.

[0010] To solve the above problems, an information management method according to a first embodiment is an information management method for integrating and managing an entire underground structure by means of a 3D model, the method comprising: creating, by an information management device, a 2D appearance model having 2D relative coordinates based on a plan view and creating a 2D internal structure model having 2D relative coordinates based on a longitudinal section view; setting an externally assigned reference point on the plan view; performing a Helmert transformation on the 2D relative coordinates of the appearance model to 2D absolute coordinates in each section of the appearance model; calculating the 3D absolute coordinates of a model reference point set as a start point or an end point of each section of the appearance model using the longitudinal section view; calculating the 3D absolute coordinates of an internal reference point from the 3D absolute coordinates of the model reference point using the longitudinal section view; and converting a 3D internal structure model having 3D relative coordinates into a 3D internal structure model having 3D absolute coordinates using the 3D absolute coordinates of the internal reference point.

[0011] To solve the above problems, a program according to a first embodiment causes a computer to function as the above information management device.

Advantages of the Invention

[0012] According to the present disclosure, it becomes possible to integrate and manage all underground structures with a 3D model without using GPS information.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3A

Figure 3B

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10A

Figure 10B

Figure 10C

Figure 10D

Figure 10E

Figure 10F

Figure 11

Figure 12

Mode for Carrying Out the Invention

[0014] Hereinafter, an information management device according to an embodiment of the present invention will be described in detail. The present invention is not limited to the following embodiments, and can be variously modified and implemented within the scope of the gist.

[0015] (First Embodiment) FIG. 1 is a block diagram showing a configuration example of an information management device 1 according to the first embodiment. As shown in FIG. 1, the information management device 1 according to the first embodiment includes a model creation unit 11, a 3D absolute coordinate calculation unit 12, and a 3D absolute coordinate model calculation unit 13. The information management device 1 integrates and manages all underground structures by means of a 3D model.

[0016] FIG. 2 is a block diagram showing details of the information management device 1 according to the first embodiment. FIG. 2 shows the input / output relationship between the model creation unit 11, the 3D absolute coordinate calculation unit 12, and the 3D absolute coordinate model calculation unit 13.

[0017] Here, FIG. 12 is a diagram explaining a model and a data structure for integrating and managing all underground structures by means of a 3D model. As shown in FIG. 12, the 3D management of all underground structures is modeled in four levels of LOD (Level of Detail). The four levels of LOD are LOD1 to LOD4. LOD1 is the external model of the underground structure, LOD2 is the external model of the underground structure that ensures connectivity with the above-ground structure, LOD3 is the external model of the underground structure + internal structure model, and LOD4 is LOD3 + equipment model.

[0018] FIG. 10A is a diagram showing a specific example of a database in the model creation unit. As shown in FIGS. 2 and 10A, based on the plan view Pv, the model creation unit 11 creates a 2D appearance model a having 2D relative coordinates from the relative coordinates of the vertices and line segments of the underground structure described in the plan view Pv, and based on the longitudinal section view Lv, creates a 2D internal structure model b having 2D relative coordinates from the relative coordinates of the vertices and line segments of the underground structure described in the longitudinal section view Lv. The model creation unit 11 outputs the appearance model a and the internal structure model b having 2D relative coordinates to the 3D absolute coordinate model calculation unit 13.

[0019] FIG. 10B is a diagram showing a specific example of a database in the 3D absolute coordinate calculation unit. As shown in FIGS. 2 and 10B, the 3D absolute coordinate calculation unit 12 calculates the 3D absolute coordinates c of the model reference point GCP and the 3D absolute coordinates d of the internal reference point Ip based on the high-precision map M, the plan view Pv, and the longitudinal section view Lv. The 3D absolute coordinate calculation unit 12 outputs the 3D absolute coordinates c of the model reference point GCP and the 3D absolute coordinates d of the internal reference point Ip to the 3D absolute coordinate model calculation unit 13. Specifically, as shown in FIG. 10B, the 3D absolute coordinate calculation unit 12 performs the following processing to calculate the 3D absolute coordinates c of the model reference point GCP and the 3D absolute coordinates d of the internal reference point Ip.

[0020] The 3D absolute coordinate calculation unit 12 sets an externally given reference point pi on the plan view Pv. The 3D absolute coordinate calculation unit 12 performs a Helmert transformation on the 2D relative coordinates of the 2D appearance model a in each section of the appearance model to 2D absolute coordinates (details of the Helmert transformation will be described later). By this transformation, the 2D absolute coordinates of the model reference point GCP set as the start point or end point of each section of the appearance model are obtained. By substituting the absolute coordinates of the depth at the same point in the longitudinal section view Lv into the 2D absolute coordinates of the model reference point GCP, the 3D absolute coordinates c of the model reference point GCP are calculated. The 3D absolute coordinate calculation unit 12 uses the wall thickness and internal height of the longitudinal section view Lv to calculate the 3D absolute Calculate the 3D absolute coordinates d of the internal reference point Ip from the pair of coordinates c. The internal reference point Ip is a reference point set as the start or end point of each section of the internal structure model, corresponding to the model reference point GCP that is the start or end point of each section of the appearance model.

[0021] The setting of the externally assigned reference point pi using the plan view Pv will be described. Fig. 3A is a diagram for explaining the method of reference point arrangement and absolute coordinate conversion. Fig. 3B is a diagram for explaining the setting of the external coordinates Pi / externally assigned reference point pi. As shown in Fig. 3A and Fig. 3B, set the positions of ground structures (road intersections, manholes, etc.) that can be confirmed in both the absolute coordinates and the plan view obtained from the high-precision map at map information level 500 as the external coordinates Pi (P0 to P3) / externally assigned reference point pi (p0 to p3). The "map information level" is a level used to indicate the accuracy of the position or height in a digitized map such as a digital topographic map, and is the same concept as the scale of an analog map. For example, map information level 500 indicates that the accuracy is that of a map with a scale of 1 / 500 in an analog map. The external coordinates are absolute coordinates with accurate position accuracy.

[0022] The 3D absolute coordinate calculation unit 12 converts the 2D relative coordinates of the 2D appearance model a into 2D absolute coordinates in each section of the appearance model by performing a Helmert transformation. The 3D absolute coordinate calculation unit 12 calculates parameters for performing a Helmert transformation on the absolute coordinates of the externally assigned reference points in each section of the appearance model, and performs a Helmert transformation using these parameters to convert the 2D relative coordinates of the appearance model into 2D absolute coordinates in each section of the appearance model. For the set externally assigned reference point pi(xi, yi), in order to assign an external coordinate Pi(Xi, Yi) with accurate position accuracy, a Helmert transformation is performed according to the following mathematical formulas. Formulas (1) to (4) are formulas for calculating the parameters (a, b, c, d) for Helmert-transforming the externally assigned reference point pi(xi, yi) in each section of the appearance model into the external coordinate Pi(Xi, Yi). Formulas (5) and (6) are formulas for converting 2D relative coordinates into 2D absolute coordinates in each section of the appearance model using the calculated parameters (a, b, c, d). Formulas (7) and (8) are formulas for obtaining the scale factor. Let i = 1 to n. n is the number of reference points. [ ] indicates the sum within the brackets.

[0023] a =([x][X] + [y][Y] - n[xX+yY]) / ([x] 2 + [y] 2 - n[x 2 + y 2 ) (1) b =([y][X] + [x][Y] - n[yX-xY]) / ([x] 2 + [y] 2 - n[x 2 + y 2 ) (2) c ={[X] - a[x] - b[y]} / n (3) d ={[Y] + b[x] - a[y]} / n (4) X = ax + by + c (5) Y = -bx + ay + d (6) The expansion ratio u = sqrt(a + b) (7) The rotation amount Θ = tan-1(b / a) (8)

[0024] The model reference point GCP is a reference point set as the starting or ending point of each section of the appearance model. By substituting the absolute coordinates (Z) of the depth at the same point in the longitudinal section into the 2D absolute coordinates (X, Y) of the model reference point GCP calculated by the above formulas (5) and (6), the 3D absolute coordinates (X, Y, Z) of the model reference point GCP are calculated.

[0025] Next, a method for calculating the 3D absolute coordinates of the internal reference point will be described. FIG. 4 is a diagram for assisting in explaining the calculation formula for obtaining the 3D absolute coordinates of the internal reference point from the model reference point. In FIG. 4, assuming the wall thickness is h, the internal cavity height is l, the linear distance to the internal reference point is k, the X-axis component of k is m, the Y-axis component of k is n, the known inclination is Θ1, and the absolute coordinates of the model reference point GCP are (x, y), the internal reference point Ip(X, Y) of the internal structure model of the underground structure as a whole can be calculated by the following formulas (9) to (13). The Z coordinate is made to coincide between the model reference point and the internal reference point.

[0026] Θ2 = tan- 1 l / h (9) k = h / cosΘ2 (10) m = k × cos(Θ1 + Θ2) (11) n = k × sin(Θ1 + Θ2) (12) Internal reference point Ip(X, Y) = (x + m, y + n) (13)

[0027] FIG. 10C is a diagram showing a specific example of a database in the 3D absolute coordinate model calculation unit 13. As shown in FIGS. 2 and 10C, the 3D absolute coordinate model calculation unit 13 uses the 3D absolute coordinates d of the internal reference point to convert the 2D internal structure model b having 2D relative coordinates into a 3D internal structure model f having 3D absolute coordinates. Further, the 3D absolute coordinate model calculation unit 13 uses the 3D absolute coordinates c of the model reference point GCP to convert the 2D external model a having 2D relative coordinates into a 3D appearance model e having 3D absolute coordinates. The 3D absolute coordinate model calculation unit 13 outputs the 3D internal structure model f having 3D absolute coordinates to the texture image conversion unit 14, the management data generation unit 15, and the data integration unit 16, which will be described later, and outputs the 3D appearance model e having 3D absolute coordinates to the data integration unit 16, which will be described later.

[0028] FIG. 5 is a flowchart showing an example of an information management method executed by the information management apparatus 1.

[0029] In step S101, the model creation unit 11 creates a 2D appearance model a having 2D relative coordinates and a 2D internal structure model b having 2D relative coordinates.

[0030] In step S102, the 3D absolute coordinate calculation unit 12 sets an externally given reference point pi in the plan view Pv.

[0031] In step S103, the 3D absolute coordinate calculation unit 12 converts the 2D relative coordinates of the appearance model into 2D absolute coordinates in each section of the appearance model.

[0032] In step S104, the 3D absolute coordinate calculation unit 12 calculates the 3D absolute coordinates c of the model reference point GCP set as the start point or the end point in each section of the appearance model.

[0033] In step S105, the 3D absolute coordinate calculation unit 12 calculates the 3D absolute coordinates d of the internal reference point from the 3D absolute coordinates c of the model reference point GCP.

[0034] In step S106, the 3D absolute coordinate model calculation unit 13 converts a 3D internal structure model having 3D relative coordinates into a 3D internal structure model f having 3D absolute coordinates using the 3D absolute coordinates d of the internal reference point.

[0035] According to the information management device 1 according to the present embodiment, it is possible to integrate and manage all underground structures by a 3D model without using GPS information. Specifically, the information management device 1 integrates and manages a 3D model of the appearance of all underground structures, a 3D model of the internal structure of all underground structures, etc. as follows.

[0036] The information management device 1 performs 3D modeling of the appearance of all underground structures using a plan view of all underground structures, a longitudinal section, a mark of the buried position of all underground structures in a GIS (Geographical Information System), and the underground depth information of all underground structures. The information management device 1 manages the information on the underground buried positions of all underground structures as absolute coordinates. In addition, the information management device 1 performs 3D modeling of the internal structure using the internal structure diagram of all underground structures and the data on the structural thickness. The position information of the internal structure is managed as absolute coordinates. Note that GIS is a geographical information system that comprehensively manages and processes data (spatial data) having information related to a position based on a geographical position, visually displays it, and enables advanced analysis and quick judgment.

[0037] In addition, when dividing the inside of all underground structures into a plurality of sections, the starting point or the ending point in each section (the section is set at a bend where the internal structure of all underground structures changes, or at the connection between the ascending / descending and excavation parts and the shield part in the vertical direction, etc.) is set as a GCP (model reference point). The absolute coordinates (planar position) of the GCP are obtained from the position of the GCP on the plan view of all underground structures, and the absolute coordinates (depth position) of the GCP are obtained from the position of the GCP on the longitudinal section of all underground structures.

[0038] In addition, the information management device 1 manages the position information of the internal structure of underground structures in general using the relative coordinates of the internal structure of underground structures in general and the absolute coordinates of GCPs (model reference points) in each section. Note that the information management device 1 corrects the locations that do not match the absolute coordinates of the internal structure of underground structures in general obtained by combining a plan view, a longitudinal section view, an internal structure view, and the structural thickness of underground structures in general. The absolute coordinates are given a reliability evaluated from the acquisition time and accuracy of the original information such as the plan view and the longitudinal section view, and the drawing with higher reliability is prioritized. That is, the reliability of each section is calculated using the acquisition time, form, and accuracy of the plan view and the longitudinal section view, and the drawing to be adopted is selected.

[0039] In addition, regarding the accuracy of the original plan view and longitudinal section view, after performing the following evaluation, the one with more certain position accuracy is prioritized. Specifically, the evaluation is performed by combining the following viewpoints. Note that the numerical values from 0 to 10 are examples.

[0040] (1) Evaluate what kind of position accuracy the plan view and the longitudinal section view have. Field survey: 5 Based on public survey results such as road registers: 4 Simple survey: 3 Unsurveyed: 0

[0041] (2) Evaluate in what form the drawing is maintained. Electronic data (CAD): 5 Paper drawing: 0

[0042] (3) Evaluate the production year of the drawing. Within 5 years: 10 (about 10% change in the road) Within 10 years: 5 (about 20% change in the road) Within 25 years: 2 (about 50% change in the road) Before that: 0

[0043] From each perspective, the one with the largest numerical value is determined to be the most accurate. Therefore, when creating a database of the appearance and internal structure of underground structures in general, if there are multiple plan views and longitudinal sections, the one with the highest numerical value shall be preferentially adopted. Also, when the numerical value becomes 0, it is recognized as having no accuracy, and after performing simple surveying on-site as much as possible, the position accuracy shall be confirmed.

[0044] (Second Embodiment) FIG. 6 is a block diagram showing a configuration example of the information management device 2 according to the second embodiment. As shown in FIG. 6, the information management device 2 according to the second embodiment includes a model creation unit 11, a 3D absolute coordinate calculation unit 12, a 3D absolute coordinate model calculation unit 13, and a texture image conversion unit 14. The information management device 2 is different in that it further includes a texture image conversion unit 14 compared to the information management device 1 according to the first embodiment. For the same configuration as that of the first embodiment, the same reference numerals as those in the first embodiment are given and the description is omitted as appropriate.

[0045] FIG. 7 is a block diagram showing the details of the information management device according to the second embodiment. FIG. 7 shows the input / output relationship between the model creation unit 11, the 3D absolute coordinate calculation unit 12, the 3D absolute coordinate model calculation unit 13, and the texture image conversion unit 14. Also, FIG. 10D is a diagram showing a specific example of the database in the texture image conversion unit.

[0046] As shown in FIGS. 7 and 10D, the texture image conversion unit 14 generates a texture image g in which the 3D absolute coordinates of the 3D internal structure model f are superimposed on the texture image td extracted from the texture image (360-degree image) t of the entire underground structure. Specifically, using an omnidirectional camera, a texture image (360-degree image) t of the entire interior of the underground structure is captured. Next, an image of the wall surface is extracted from the texture image (360-degree image) t, and one texture image td is created for each straight-line structure part of the underground passage that is divided for each structure. Then, the 3D absolute coordinates of the 3D internal structure model f are superimposed on the texture image td, and a texture image g that associates the 3D internal structure model f and the texture image td according to the 3D absolute coordinates of the 3D internal structure model f is created. The texture image conversion unit 14 outputs the texture image g to a management data generation unit 15 described later.

[0047] As described above, conventionally, point cloud data obtained by a laser scanner or the like has been used as an image of the internal space of the entire underground structure. However, since the density of the point cloud data is low, there has been a problem that although the shapes of facilities such as internal cables, hardware, sensors, and other electrical equipment can be recognized, it is difficult to recognize them as objects. For this reason, in the present invention, by using an image of the entire interior of the underground structure captured using an omnidirectional camera, the problem of low recognition of objects has been solved.

[0048] According to the information management device 2 according to the present embodiment, since the 3D absolute coordinates of the 3D internal structure model are superimposed on the texture image, the 3D internal structure model and the texture image can be associated and managed according to the 3D absolute coordinates of the 3D internal structure model.

[0049] (Third Embodiment) FIG. 8 is a block diagram showing a configuration example of the information management apparatus 3 according to the third embodiment. As shown in FIG. 8, the information management apparatus 3 according to the third embodiment includes a model creation unit 11, a 3D absolute coordinate calculation unit 12, a 3D absolute coordinate model calculation unit 13, a texture image conversion unit 14, a management data generation unit 15, a data integration unit 16, an appearance model DB 17, an internal structure model DB 18, and a tunnel section DB 19. The information management apparatus 3 is different from the information management apparatus 2 according to the second embodiment in that it further includes a management data generation unit 15, a data integration unit 16, an appearance model DB 17, an internal structure model DB 18, and a tunnel section DB 19. For the same configuration as that in the second embodiment, the same reference numerals as those in the second embodiment are assigned and the description thereof is omitted as appropriate.

[0050] FIG. 9 is a block diagram showing details of blocks newly provided in the information management apparatus 3 according to the third embodiment, excluding the same block portions as those in the information management apparatus 2. FIG. 9 mainly shows the input / output relationships among the management data generation unit 15, the data integration unit 16, the appearance model DB 17, the internal structure model DB 18, and the tunnel section DB 19. FIG. 10E is a diagram showing a specific example of the database in the management data generation unit.

[0051] As shown in FIGS. 9 and 10E, the management data generation unit 15 divides a 3D internal structure model f having 3D absolute coordinates and a texture image g obtained by superimposing the 3D absolute coordinates of the 3D internal structure model f for each management section of the underground structure as a whole, and generates a 3D internal structure model h for each management section having 3D absolute coordinates and a texture image i for each management section. The management data generation unit 15 outputs the 3D internal structure model h and the texture image i to the data integration unit 16.

[0052] The data integration unit 16 can integrally display and manage the 3D appearance model e of the entire underground structure, the 3D internal structure model f of the entire underground structure and the 3D internal structure model h for each management section, and a plurality of texture images i for each management section on the internal route of the entire underground structure. The data integration unit 16 links and integrates each model and texture image with the position information of the common 3D absolute coordinates. The data integration unit 16 stores and manages the integrated information in any one of the appearance model DB 17, the internal structure model DB 18, and the tunnel section DB 19.

[0053] FIG. 10F is a diagram showing a specific example of the database in the data integration unit. As shown in FIG. 10F, the information obtained by integrating the appearance model e having 3D absolute coordinates into the GIS data is stored in the appearance model DB 17. The information obtained by integrating the 3D model f of the internal structure having 3D absolute coordinates into the GIS data is stored in the internal structure model DB 18. The information obtained by integrating the 3D model h of the internal structure having 3D absolute coordinates for each management section and the texture image i for each management section into the GIS data is stored in the tunnel section DB 19. Hereinafter, the 3D internal structure model f and the 3D internal structure model h for each management section are collectively referred to as the 3D internal structure model f / h.

[0054] The information management device 3 manages the equipment information of the attached equipment of the main body of the entire underground structure by associating it with the absolute coordinates of each equipment inside the entire underground structure in the 3D appearance model e of the entire underground structure, the 3D internal structure model f / h, and the texture image i obtained by photographing the inside of the entire underground structure. Further, the information management device 3 manages the inspection information of the attached equipment of the main body of the entire underground structure by associating it with the absolute coordinates of each equipment inside the entire underground structure in the 3D appearance model e of the entire underground structure, the 3D internal structure model f / h, and the image i obtained by photographing the inside of the entire underground structure.

[0055] When inspecting the attached equipment of the main body of underground structures in general, the information management device 3 acquires the absolute coordinates on the image from the image obtained by photographing the inspection equipment inside the underground structures in general using an omnidirectional camera. Then, when the information management device 3 newly inspects the attached equipment of the above-mentioned main body, it overwrites the image taken at this time on the absolute coordinates on the image including the inspection equipment photographed previously, thereby managing the image of the newly inspected equipment and the absolute coordinates on the image. Also, the inspection information at the time of new photographing is overwritten on the previous inspection information by associating it with the absolute coordinates of the inspection equipment.

[0056] According to the information management device 3 according to the present embodiment, it is possible to manage by associating the 3D external model e of the underground structures in general, the 3D internal structure model f / h, and the image i of the inside of the underground structures in general, using the absolute coordinates each has. The data integration unit 16 can generate the functions on the following respective models.

[0057] The data integration unit 16 integrally displays and manages a 3D map showing buildings, roads, etc. on the ground surface, a 3D external model e of the underground structures in general buried underground, a 3D internal structure model f / h of the underground structures in general, and a plurality of texture images i on the internal route of the underground structures in general. Since the data integration unit 16 associates and integrates each model and the texture image with the position information of the common 3D absolute coordinates, it acquires and displays the 3D absolute coordinates of an arbitrary point inside the underground structures in general.

[0058] Since a plurality of texture images i on the internal route of the underground structures in general are attached to the 3D internal structure model f / h of the underground structures in general, when an arbitrary point is selected in the 3D external model e of the underground structures in general, the data integration unit 16 displays the texture image including the position information of the corresponding 3D absolute coordinates.

[0059] For an arbitrary point of the attached equipment of the main body of the underground structures in general displayed in the texture image i inside the underground structures in general, the data integration unit 16 inputs the equipment information or inspection information, tags it, and displays and manages it.​

[0060]

[0060] The data integration unit 16 selects any two points or any three or more points on the wall surface or the like inside the entire underground structure, which are displayed in the texture image i inside the entire underground structure, and displays the distance or area of the portion surrounded by the two points or any three or more points in the texture image i inside the entire underground structure.

[0061] If the position of the facility for inspecting the attached equipment of the main body of the entire underground structure has not changed, the data integration unit 16 utilizes the position information of the absolute coordinates of the inspection facility in the texture image i inside the entire underground structure taken during the previous inspection and the position information of the absolute coordinates of the inspection facility in the texture image i inside the entire underground structure taken this time, and overwrites and pastes the texture image i inside the entire underground structure taken this time onto the 3D internal structure model of the entire underground structure.

[0062] The data integration unit 16 divides the entire underground structure into a plurality of sections in the 3D external model e of the entire underground structure buried underground, the 3D internal structure models f / h of the entire underground structure, and the plurality of texture images i on the internal route of the entire underground structure, and manages the equipment information or inspection information inside the entire underground structure.

[0063]

[0061] In conjunction with the display of the texture image i inside the entire underground structure, the data integration unit 16 can display the section of the entire underground structure containing the corresponding texture image i in color in the 3D external model e of the entire underground structure.

[0064] When any point is selected in the texture image i inside the entire underground structure, the data integration unit 16 displays the position corresponding to the position information of the 3D absolute coordinates of the corresponding point in the 3D external model e of the entire underground structure.

[0065] When equipment information or inspection information is input for any point of the attached equipment of the main body of the underground structure in the texture image i inside the entire underground structure, in the 3D appearance model e of the entire underground structure, the same equipment information or inspection information is displayed and managed at the point corresponding to the position information of the 3D absolute coordinates of the relevant point.

[0066] The model creation unit 11, 3D absolute coordinate calculation unit 12, 3D absolute coordinate model calculation unit 13, texture image conversion unit 14, management data generation unit 15, and data integration unit 16 in the above information management devices 1, 2, and 3 constitute part of a control device (controller). The control device may be composed of dedicated hardware such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field-Programmable Gate Array), or may be composed of a processor, or may be composed of both.

[0067] In addition, in order to make the above information management devices 1, 2, and 3 function, it is also possible to use a computer capable of executing program instructions. FIG. 11 is a block diagram showing a schematic configuration of a computer that functions as the information management devices 1, 2, and 3. Here, the computer 100 may be a general-purpose computer, a dedicated computer, a workstation, a PC (Personal Computer), an electronic notebook pad, or the like. The program instructions may be program codes, code segments, etc. for executing necessary tasks. for executing necessary tasks.

[0068] As shown in FIG. 11, the computer 100 includes a processor 110, a ROM (Read Only Memory) 120, a RAM (Random Access Memory) 130, and a storage 140 as storage units, an input unit 150, an output unit 160, and a communication interface (I / F) 170. Each component is communicably connected to each other via a bus 180.

[0069] The ROM 120 stores various programs and various data. The RAM 130 temporarily stores programs or data as a working area. The storage 140 is composed of an HDD (Hard Disk Drive) or an SSD (Solid State Drive), and stores various programs and various data including an operating system. In the present disclosure, the program according to the present disclosure is stored in the ROM 120 or the storage 140.

[0070] Specifically, the processor 110 is a CPU (Central Processing Unit), MPU (Micro Processing Unit), GPU (Graphics Processing Unit), DSP (Digital Signal Processor), SoC (System on a Chip), etc., and may be composed of a plurality of processors of the same type or different types. The processor 110 reads a program from the ROM 120 or the storage 140, and executes the program using the RAM 130 as a working area, thereby controlling each of the above components and performing various arithmetic processes. Note that at least a part of these processing contents may be realized by hardware.

[0071] The program may be recorded on a computer-readable recording medium. By using such a recording medium, the program can be installed on the computer 100. Here, the recording medium on which the program is recorded may be a non-transitory recording medium. The non-transitory recording medium is not particularly limited, and may be, for example, a CD-ROM, a DVD-ROM, a USB (Universal Serial Bus) memory, or the like. Further, the program may be in a form downloaded from an external device via a network.

[0072] Although the above-described embodiments have been described as representative examples, it will be apparent to those skilled in the art that many changes and substitutions can be made within the spirit and scope of the present disclosure. Therefore, the present invention should not be construed as being limited by the above-described embodiments, and various modifications or changes are possible without departing from the scope of the claims. For example, it is possible to combine a plurality of constituent blocks described in the configuration diagram of the embodiment into one, or to divide one constituent block.

Explanation of Reference Numerals

[0073] 1, 2, 3 Information management device 11 Model creation unit 12 3D absolute coordinate calculation unit 13 3D absolute coordinate model calculation unit 14 Texture image conversion unit 15 Management data generation unit 16 Data integration unit 17 Appearance model DB 18 Internal structure model DB 19 Tunnel section DB 100 Computer 110 Processor 120 ROM 130 RAM 140 Storage 150 Input unit 160 Output unit 170 Communication interface (I / F) 180 Bus

Claims

1. An information management device for integrating and managing all underground structures using a 3D model, comprising: A model creation unit that creates a 2D appearance model having 2D relative coordinates based on a plan view and creates a 2D internal structure model having 2D relative coordinates based on a longitudinal section view; Set an externally given reference point on the plan view, perform Helmert transformation on the 2D relative coordinates of the 2D appearance model in each section of the appearance model to 2D absolute coordinates, and use the longitudinal section view to calculate the 3D absolute coordinates of the model reference point at the 2D absolute coordinates of the model reference point set as the start point or end point of each section of the appearance model, and calculate the 3D absolute coordinates of the internal reference point from the 3D absolute coordinates of the model reference point using the longitudinal section view; A 3D absolute coordinate model calculation unit that converts the 2D internal structure model having the 2D relative coordinates into a 3D internal structure model having 3D absolute coordinates using the 3D absolute coordinates of the internal reference point; An information management device comprising:

2. The information management device according to claim 1, further comprising a texture image conversion unit that generates a texture image in which the 3D absolute coordinates of the 3D internal structure model are superimposed on a texture image (360-degree image) extracted from an internal photograph (360-degree image) of all the underground structures.

3. The 3D appearance model of all the underground structures, the 3D internal structure model of all the underground structures and the 3D internal structure model for each management section, and a plurality of texture images for each management section on the internal route of all the underground structures can be displayed and managed in a unified manner, The information management device according to claim 2, further comprising a data integration unit that links and integrates each model and texture image with position information of common 3D absolute coordinates.

4. The data integration unit: Acquire and display the 3D absolute coordinates of an arbitrary point inside all the underground structures; Since a plurality of texture images on the internal route of the entire underground structure are attached to the 3D internal structure model of the entire underground structure, when an arbitrary point is selected in the 3D appearance model of the entire underground structure, a texture image including the position information of the corresponding 3D absolute coordinates is displayed. For any point of the attached equipment of the main body of the entire underground structure displayed in the texture image of the entire underground structure, input its equipment information or inspection information, tag it, and display and manage it. By selecting any two points or any three or more points between any two points such as the wall surface inside the entire underground structure displayed in the texture image of the entire underground structure, display the distance or area of the portion surrounded by the two points or any three or more points in the texture image of the entire underground structure, and When the position of the equipment for inspecting the attached equipment of the main body of the entire underground structure has not changed, utilize the position information of the absolute coordinates of the inspection equipment in the texture image of the inside of the entire underground structure taken during the previous inspection and the position information of the absolute coordinates of the inspection equipment in the texture image of the inside of the entire underground structure taken this time, and overwrite and paste the texture image of the inside of the entire underground structure taken this time on the 3D internal structure model of the entire underground structure. The information management device according to claim 3, wherein at least one of the above is performed.

5. The data integration unit In the 3D appearance model of the entire underground structure buried underground, the 3D internal structure model of the entire underground structure, and the plurality of texture images on the internal route of the entire underground structure The information management device according to claim 3, which divides the entire underground structure into a plurality of sections and manages the equipment information or inspection information inside the entire underground structure.

6. The data integration unit In conjunction with the display of the texture image inside the entire underground structure, in the 3D appearance model of the entire underground structure, display the section of the entire underground structure including the corresponding texture image in color. In the texture image inside the entire underground structure, when an arbitrary point is selected, in the 3D appearance model of the entire underground structure, a position corresponding to the position information of the 3D absolute coordinates of the corresponding point is displayed, and For an arbitrary point of the attached equipment of the main body of the entire underground structure displayed in the texture image inside the entire underground structure, when its equipment information or inspection information is input, in the 3D appearance model of the entire underground structure, at the point corresponding to the position information of the 3D absolute coordinates of the corresponding point, the same equipment information or inspection information is displayed and managed, The information management device according to claim 3, which performs at least one of the above.

7. An information management method for integrating and managing the entire underground structure with a 3D model, By an information management device, Based on a plan view, creating a 2D appearance model with 2D relative coordinates, and based on a longitudinal section view, creating a 2D internal structure model with 2D relative coordinates; Setting an externally assigned reference point on the plan view; In each section of the appearance model, converting the 2D relative coordinates of the 2D appearance model into 2D absolute coordinates; Using the longitudinal section view, calculating the 3D absolute coordinates of the model reference point at the 2D absolute coordinates of the model reference point set as the start point or end point of each section of the appearance model; Using the longitudinal section view, calculating the 3D absolute coordinates of the internal reference point from the 3D absolute coordinates of the model reference point; Using the 3D absolute coordinates of the internal reference point, converting the 2D internal structure model with 2D relative coordinates into a 3D internal structure model with 3D absolute coordinates; An information management method including the above.

8. A program for causing a computer to function as the information management device according to any one of claims 1 to 6.

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