Structure investigation support device, structure investigation support method, and program

Abstract

To provide a structure investigation support device, a structure investigation support method, and a program by which candidates of access means to an investigation position on a structure can be presented clearly.SOLUTION: A structure investigation support device includes a processor (20). The processor (20) acquires a three-dimensional model of a structure to be investigated and accessible range information of a plurality of types of access means for accessing an investigation position on the structure, displays the three-dimensional model on a display unit, receives designation of the investigation position in the displayed three-dimensional model, and displays, on the display unit, information on at least one type of the access means for accessing the investigation position on the basis of the received investigation position and the accessible range information.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a structure investigation support device, a structure investigation support method, and a program.

Background Art

[0002] Conventionally, when conducting an investigation work on a structure, an investigation support technique for supporting an investigator has been proposed.

[0003] For example, Patent Document 1 proposes a technique aimed at photographing a structure, detecting defects from the photographed image, and easily and accurately calculating the cost for repairing the defects.

[0004] Here, when screening is performed by visual inspection from a distance by an investigator or by roughly photographing the entire structure using a drone (unmanned aerial vehicle), etc., damage may be discovered, and detailed investigation may be required in the vicinity of the discovered damage.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] There are many means of accessing the investigation position of a structure. Therefore, it is difficult for an investigator to know which means can be used to access the desired investigation position, and the design of the access means may not be easily performed.

[0007] The present invention has been made in view of such circumstances, and an object thereof is to provide a structure investigation support device, a structure investigation support method, and a program that clearly present candidates for access means to the investigation position of a structure.

Means for Solving the Problem

[0008] An investigation support device for a structure, which is one aspect of the present invention for achieving the above object, is an investigation support device for a structure including a processor. The processor acquires a three-dimensional model of the structure to be investigated and accessable range information of a plurality of types of access means for accessing the investigation position of the structure, causes the three-dimensional model to be displayed on a display unit, accepts designation of the investigation position of the displayed three-dimensional model, and based on the accepted investigation position and the accessable range information, causes information of one or more types of access means for accessing the investigation position to be displayed on the display unit.

[0009] Preferably, the investigation support device for a structure includes a memory that stores the three-dimensional model and the accessable range information, and the processor acquires the three-dimensional model and the accessable range information from the memory.

[0010] Preferably, the memory stores an image of the structure associated with the three-dimensional model, and the processor detects damage from the image and automatically accepts designation of the investigation position based on the detected damage.

[0011] Preferably, the memory stores damage information associated with the three-dimensional model, and the processor displays the damage information on the three-dimensional model.

[0012] Preferably, the processor acquires surrounding environment information indicating the environment around the structure, and based on the surrounding environment information, the investigation position, and the accessable range information, causes information of the access means for accessing the investigation position to be displayed.

[0013] Preferably, the investigation support device for a structure includes a memory that stores the surrounding environment information, and the processor acquires the surrounding environment information from the memory.

[0014] Preferably, for each of the access means, the processor acquires unit investigation time information indicating the time required for investigation, and when displaying the information of the access means, displays the unit investigation time information corresponding to the information of the access means to be displayed.

[0015] Preferably, the structure investigation support device includes a memory for storing unit investigation time information, and the processor acquires the unit investigation time information from the memory.

[0016] Preferably, based on the investigation position and the unit investigation time information, the processor calculates at least one of the time required for each investigation position and the time required for investigating all the investigation positions, and displays the calculated required time.

[0017] Preferably, for each of the access means, the processor acquires cost information indicating the cost required for investigation, and when displaying the information of the access means, displays the cost information corresponding to the information of the access means to be displayed.

[0018] Preferably, the structure investigation support device includes a memory for storing cost information, and the processor acquires the cost information from the memory.

[0019] Preferably, based on the investigation position and the cost information, the processor calculates at least one of the investigation cost for each investigation position and the investigation cost for investigating all the investigation positions, and displays the calculated investigation cost.

[0020] Preferably, the investigation position is a position where visual inspection or percussion is performed on the structure.

[0021] Preferably, the investigation position is a photographing target position indicating the range to be photographed of the structure.

[0022] Preferably, the processor acquires photographing conditions for photographing the structure, acquires a photographing position based on the investigation position and the photographing conditions, and displays information of the access means for the photographing position.

[0023] Preferably, the structure investigation support device includes a memory that stores shooting conditions, and the processor acquires the shooting conditions from the memory.

[0024] Preferably, the processor displays the shooting position.

[0025] A structure investigation support method according to another aspect of the present invention is a structure investigation support method using a structure investigation support device including a processor, and includes steps of: acquiring, by the processor, a three-dimensional model of a structure to be investigated and accessible range information of a plurality of types of access means for accessing the investigation position of the structure; displaying the three-dimensional model on a display unit; receiving a designation of the investigation position of the displayed three-dimensional model; and displaying, on the display unit, information of one or more types of access means for accessing the investigation position based on the received investigation position and the accessible range information.

[0026] A program according to another aspect of the present invention is a program for causing a structure investigation support device including a processor to execute a structure investigation support method, and causes the processor to execute steps of: acquiring a three-dimensional model of a structure to be investigated and accessible range information of a plurality of types of access means for accessing the investigation position of the structure; displaying the three-dimensional model on a display unit; receiving a designation of the investigation position of the displayed three-dimensional model; and displaying, on the display unit, information of one or more types of access means for accessing the investigation position based on the received investigation position and the accessible range information.

Advantages of the Invention

[0027] According to the present invention, since information of one or more types of access means for accessing the investigation position is presented based on the designated investigation position and the accessible range information, a user can easily design the access means.

Brief Description of the Drawings

[0028]

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[0029] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a structure inspection support device, a structure inspection support method, and a program according to the present invention will now be described with reference to the accompanying drawings.

[0030] <First embodiment> [Hardware configuration of the structural inspection support device] FIG. 1 is a block diagram showing an example of a hardware configuration of a structure inspection support device according to the present invention.

[0031] As the structure investigation support device 10 shown in FIG. 1, a computer or a workstation can be used. The structure investigation support device 10 in this example mainly includes an input / output interface 12, a storage unit 16, an operation unit 18, a CPU (Central Processing Unit) 20, a RAM (Random Access Memory) 22, a ROM (Read Only Memory) 24, and a display control unit 26. A display unit 30 is connected to the structure investigation support device 10, and under the command of the CPU 20, a display is performed on the display unit 30 under the control of the display control unit 26. The display unit 30 is configured by, for example, a monitor.

[0032] The input / output interface 12 can input various data (information) into the structure investigation support device 10. For example, the data stored in the storage unit 16, which will be described later, is input via the input / output interface 12.

[0033] The CPU (processor) 20 reads out various programs stored in the storage unit 16 or the ROM 24, etc., expands them in the RAM 22 for calculation, and performs overall control of each part. Also, the CPU 20 reads out the programs stored in the storage unit 16 and the ROM 24, performs calculations using the RAM 22, and performs various processes of the structure investigation support device 10.

[0034] FIG. 2 is a block diagram showing the processing functions realized by the CPU 20.

[0035] The CPU 20 has an information acquisition unit 51, a three-dimensional model display unit 53, a designation reception unit 55, and an information display unit 57. The specific processing functions of each part will be described later.

[0036] Returning to FIG. 1, the storage unit (memory) 16 is a memory composed of a hard disk drive, a flash memory, or the like. The storage unit 16 stores data and programs for operating the structure investigation support device 10, such as an operating system and a program for executing the structure investigation support method. The storage unit 16 also stores information used in the present embodiment described below.

[0037] FIG. 3 is a diagram showing information and the like stored in the storage unit 16.

[0038] The storage unit 16 mainly stores a 3D model 101, an image 103, damage information 105, and accessible range information 107.

[0039] The 3D model 101 is a model showing the structure to be investigated. Here, the 3D model 101 is not particularly limited as long as it is 3D information showing the shape of the structure to be investigated. For example, the 3D model 101 is a 3D CAD (computer-aided design) showing the structure, a point cloud model, a texture model, a solid model, or the like. The structure includes civil engineering structures such as buildings, for example, bridges, tunnels, dams, etc., and also includes buildings such as buildings, houses, building walls, columns, beams, etc.

[0040] The image 103 is an image of the structure associated with the 3D model 101. For example, the image 103 is a captured image of the structure to be investigated, and is pasted as a texture on the surface of the structure represented by the 3D model 101. When there is damage to the structure, the damage is shown in the image 103, and the damage can be detected from the image 103.

[0041] Damage information 105 is information regarding damage associated with the three-dimensional model 101. For example, the damage information 105 is information on the damage of the structure to be investigated. For example, the damage information 105 is a damage model indicating the type, shape, and size of the damage. Specifically, the crack damage model is a model image showing the crack shape, and the peeling damage model is a model image showing the peeling shape. Further, the damage model has position information (three-dimensional coordinates) on the three-dimensional model 101 corresponding to the location where the structure actually has damage, and the three-dimensional model display unit 53 can display it on the display unit 30 by superimposing it on the three-dimensional model 101.

[0042] Accessible range information 107 is information indicating the accessible range of the access means for accessing the investigation position. The access means are various means for accessing, that is, approaching, the investigation position. Specific examples of the access means are ladders, mobile scaffolds, mobile suspended scaffolds, bridge inspection vehicles, floating scaffolds (working pontoon + scaffold), gondola cars, aerial work platforms, rope access, and bridge inspection boats, etc. Here, the investigation position indicates a location close to the structure to be investigated where detailed investigation is required. Specifically, the investigator visually inspects or performs percussion near the structure to be investigated at the investigation position. Also, the investigation position may indicate a photographing target position indicating the range where photographing is performed close to the structure. Specifically, the investigator acquires a photographed image in which the investigation position is shown.

[0043] Returning to FIG. 1, the operation unit 18 includes a keyboard and a mouse, etc. that are wired-connected or wirelessly connected to a computer, and functions as an operation unit 18 for performing normal operation instructions of the computer. Further, the operation unit 18 accepts the designation of the investigation position by the user designating a part of the three-dimensional model 101 displayed on the display unit 30.

[0044] FIG. 4 is a flowchart showing a method for supporting the investigation of a structure using the structure investigation support device 10.

[0045] First, the information acquisition unit 51 acquires a three-dimensional model of the structure to be investigated and accessible range information 107 (information acquisition step: step S1). Then, the three-dimensional model display unit 53 displays the acquired three-dimensional model on the display unit 30 (three-dimensional model display step: step S2). Next, the designation reception unit 55 receives the designation of the investigation position in the three-dimensional model (designation reception step: step S3). Next, the information display unit of the access means 57 displays, on the display unit 30, information on one or more access means for accessing the investigation position based on the received investigation position and the accessible range information 107 (information display step of the access means: step S4). A detailed explanation will be given below for each step.

[0046] <Information acquisition step> The information acquisition step (step S1) is performed by the information acquisition unit 51. The information acquisition unit 51 acquires the three-dimensional model 101 of the structure and the accessible range information 107 stored in the storage unit 16. If the three-dimensional model 101 and the accessible range information 107 are not stored in the storage unit 16, the information acquisition unit 51 acquires the three-dimensional model 101 and the accessible range information 107 from the outside. For example, the information acquisition unit 51 acquires the three-dimensional model 101 and the accessible range information 107 through the network via the input / output interface 12.

[0047] Also, the information acquisition unit 51 can acquire the image 103 and / or the damage information 105 together with the three-dimensional model 101. When "three-dimensional model 101 and image 103" is displayed on the display unit 30, when "three-dimensional model 101 and damage information 105" is displayed on the display unit 30, or when "three-dimensional model 101, image 103, and damage information 105" is displayed on the display unit 30, the information acquisition unit 51 acquires the image 103 and the damage information 105 for display respectively.

[0048] <Three-dimensional model display step and designation reception step> The three-dimensional model display step (step S2) is performed by the three-dimensional model display unit 53. Also, the designation reception step (step S3) is performed by the designation reception unit 55.

[0049] Figs. 5 to 8 are diagrams for explaining specific examples of the three-dimensional model display step and the designation reception step. In Figs. 5 to 8, a texture model in which a photographed image (image 103) of a bridge corresponding to the three-dimensional model is pasted as a texture is displayed as the three-dimensional model.

[0050] [Example 1] Fig. 5 is a diagram showing the three-dimensional model and the designated investigation position displayed on the display unit 30 of Example 1.

[0051] Fig. 5(A) is a diagram showing the three-dimensional model M1 displayed on the display unit 30. The three-dimensional model M1 is a diagram showing a pier to be investigated. The user looks at the three-dimensional model M1 displayed on the display unit 30 and designates a location on the three-dimensional model M1 where an investigation is required in the vicinity.

[0052] Fig. 5(B) is a diagram for explaining the case where the investigation position F1 is designated.

[0053] The user manually designates a location (investigation position F1) that is judged to require an investigation in the vicinity on the three-dimensional model M1 via the operation unit 18. The designation reception unit 55 receives the position on the three-dimensional model M1 designated by the operation unit 18.

[0054] [Example 2] Fig. 6 is a diagram showing the three-dimensional model and the designated investigation position displayed on the display unit 30 of Example 2.

[0055] Fig. 6(A) is a diagram showing the three-dimensional model M2 displayed on the display unit 30. The three-dimensional model M2 is a diagram showing the upper part of the pier to be investigated. The user looks at the three-dimensional model M2 displayed on the display unit 30 and designates a location on the three-dimensional model M2 where an investigation is required in the vicinity.

[0056] FIG. 6(B) is a diagram for explaining the case where the investigation position F2 is specified.

[0057] The user manually specifies a location (investigation position F2) that is determined to require investigation in the vicinity on the 3D model M2 via the operation unit 18. The specification reception unit 55 receives the position on the 3D model M2 specified by the operation unit 18.

[0058] [Example 3] FIG. 7 is a diagram showing the 3D model displayed on the display unit 30 in Example 3 and the specified investigation position.

[0059] FIG. 7(A) is a diagram showing the 3D model M1 displayed on the display unit 30. The 3D model M1 in this example has damage information D1. The damage information D1 is a crack damage model. In this example, the user can view the 3D model M1 having the damage information D1 and determine that investigation is required in the vicinity and specify the investigation position F3.

[0060] FIG. 7(B) is a diagram for explaining the case where the investigation position F3 is specified.

[0061] The user manually specifies a location (investigation position F3) that is determined to require investigation in the vicinity on the 3D model M1 via the operation unit 18. The user can view the damage information D1 displayed on the display unit 30 and specify as the investigation position F3 a location where the damage information D1 is concentrated (a location where cracks are concentrated).

[0062] In this way, by superimposing and displaying the damage information D1 on the 3D model M1, the user can easily determine the locations that require investigation in the vicinity and accurately specify the investigation positions.

[0063] [Example 4] FIG. 8 is a diagram showing the 3D model displayed on the display unit 30 in Example 4 and the specified investigation position.

[0064] FIG. 8(A) is a diagram showing the three-dimensional model M2 displayed on the display unit 30. The three-dimensional model M2 in this example has damage information D2. The damage information D2 is a crack damage model. In this example, the user can view the three-dimensional model M2 having the damage information D2, determine that an investigation is necessary in the vicinity, and specify an investigation position F4.

[0065] FIG. 8(B) is a diagram for explaining the case where the investigation position F4 is specified.

[0066] The user manually specifies the location (investigation position F4) that is determined to require an investigation in the vicinity on the three-dimensional model M2 via the operation unit 18. For example, the user can view the damage information D2 and specify the location where the damage information D2 is concentrated (the location where the cracks are concentrated) as the investigation position F4.

[0067] In this way, by superimposing and displaying the damage information D2 on the three-dimensional model M2, the user can easily determine the location that requires an investigation in the vicinity and accurately specify the investigation position.

[0068] In the above-described example, the case where the user manually specifies the investigation position has been described, but the specification of the investigation position is not limited to this. The specification reception unit 55 may automatically receive the investigation position. When the investigation position is automatically specified, for example, the specification of the investigation position is performed based on the damage information D. For example, the investigation position may be automatically specified based on the detection result or quantification result of the damage, such as a location where a crack with a thickness or length greater than or equal to a threshold value has occurred, a location where a reticulated crack has occurred, or a location where delamination with an area greater than or equal to a threshold value has occurred.

[0069] <Information display step of access means> The information display step of the access means (step S4) is performed on the information display unit 57. The information display unit 57 displays, on the display unit 30, information on one or more access means for accessing the investigation position based on the received investigation position and the accessible range information 107.

[0070] [Access means and accessible range information] First, the access means and the accessible range information 107 will be described. Various means can be adopted as the access means for conducting a detailed survey in the vicinity of the survey position. Specific examples of the access means and the accessible range information 107 will be described below.

[0071] FIG. 9 is a diagram showing an aerial work platform as an example of the access means.

[0072] As shown in FIG. 9, the aerial work platform 203 is provided with a basket 203B at the tip of a boom 203A. An investigator can access the survey position at a high place by boarding the basket 203B and extending and retracting the boom 203A.

[0073] FIG. 10 is a diagram showing a work range diagram as an example of the accessible range information 107 of the aerial work platform 203.

[0074] The work range diagram 205 shows the work range of the aerial work platform 203 in a diagram. Specifically, the work range diagram 205 shows the vertical reach range and the horizontal working radius of the basket 203B of the aerial work platform 203.

[0075] FIG. 11 is a diagram showing a bridge inspection vehicle as an example of the access means.

[0076] As shown in FIG. 11, the bridge inspection vehicle 207 is provided with a basket 207B at the tip of a boom 207A. An investigator can access the survey position by boarding the basket 207B and extending and retracting the boom 207A.

[0077] FIG. 12 is a diagram showing a work range diagram as an example of the accessible range information 107 below the bridge inspection vehicle 207.

[0078] The working range diagram 209 shows the working range at the bridge inspection vehicle 207 in a figure. The working range diagram 209 shows the working radius of the basket 207B of the bridge inspection vehicle 207 and the ground height that can be reached.

[0079] FIG. 13 is a diagram showing a working range diagram which is an example of the accessible range information 107 on the upper side of the bridge inspection vehicle 207.

[0080] The working range diagram 211 shows the working range at the bridge inspection vehicle 207 in a figure. The working range diagram 211 shows the working radius of the basket 207B of the bridge inspection vehicle 207 and the ground height that can be reached.

[0081] FIG. 14 is a diagram for explaining rope access which is an example of the access means.

[0082] As shown in FIG. 14(A), by rope access, the investigator 211A can access the high-place inspection position of the bridge 210. Also, as shown in FIG. 14(B), by rope access, the investigator 211B can access the inspection position on the back side of the bridge 210. Note that the accessible range information 107 of the rope access can be accessed without restrictions on the reachable ground height and working range.

[0083] FIG. 15 is a diagram showing a ladder which is an example of the access means.

[0084] As shown in FIG. 15, by using the ladder 213, the investigator 213A can access the high-place inspection position. Specifically, the investigator 213A can use the ladder 213 to approach and conduct a detailed inspection at the high-place inspection position of the pier 215.

[0085] [Display of information on access means] Next, an explanation will be given regarding the display of information on the access means. The information display unit 57 determines the accessibility of each access means from the survey position specified on the three-dimensional model and the accessible range information 107. Then, the information display unit 57 displays the information on the access means based on the determined accessibility. Note that the three-dimensional model has information regarding the actual dimensions of the structure (the structure to be surveyed), and the information display unit 57 can obtain information on where the survey position specified on the three-dimensional model is located in the actual structural part. Therefore, the information display unit 57 can determine the accessibility of each access means by comparing the survey position in actual dimensions with the accessible range information 107.

[0086] FIG. 16 is a diagram showing an example of the display of information on the access means displayed on the display unit 30 by the information display unit 57.

[0087] FIG. 16(A) is a diagram showing, in an image display, the information on the access means for the survey positions (1) to (4) specified in the three-dimensional model 250 of the bridge. FIG. 16(B) is a diagram showing, in a list, the information on the access means for the survey positions (1) to (4).

[0088] The survey position (1) (indicated by reference numeral 252) is located on the back side of the bridge. Since the bridge inspection vehicle 207 and access by rope access are possible for the survey position (1) (see list 212), the bridge inspection vehicle 207 (image display) and the surveyor 211A by rope access (image display) are displayed in the vicinity of the survey position (1).

[0089] The survey position (2) (indicated by reference numeral 254) is located at the upper part of the pier. Since the bridge inspection vehicle 207 and access by rope access are possible for the survey position (2) (see list 212), the bridge inspection vehicle 207 (image display) is displayed in the vicinity of the survey position (2).

[0090] The survey location (3) (indicated by reference numeral 256) is located at the middle part of the pier. Since the survey location (3) can be accessed by rope access, an aerial work platform 203, and a bridge inspection vehicle 207 (see List 212), the aerial work platform 203 (image display) is shown in the vicinity of the survey location (3) in the three-dimensional model 250.

[0091] The survey location (4) (indicated by reference numeral 258) is located at the lower part of the pier. Since the survey location (4) can be accessed by a ladder 213, rope access, an aerial work platform 203, and a bridge inspection vehicle 207 (see List 212), the rope access inspector 211A and the aerial work platform 203 are shown in the vicinity of the survey location (4) in the three-dimensional model 250.

[0092] As described above, the information display unit 57 may perform an image display of accessible access means (FIG. 16(A)) and a display of List 212 (FIG. 16(B)) on the three-dimensional model 250, or may perform the display of either one (FIG. 16(A) or FIG. 16(B)). Further, when performing an image display of accessible access means (FIG. 16(A)) and a display of List 212 (FIG. 16(B)) on the three-dimensional model 250, if the user selects an access means in List 212, the accessible locations on the three-dimensional model may be displayed in a different color. In the above description, an example in which a plurality of survey locations are specified has been described, but the present embodiment is not limited to this example. For example, the structure survey support device 10 may present one access means for one survey location.

[0093] As described above, in the present embodiment, based on the received survey location and the accessible range information 107, information on one or more access means for accessing the survey location is displayed. Thereby, the user can easily grasp the candidates for the access means to the survey location.

[0094] <Second Embodiment> Next, the second embodiment will be described. In this embodiment, information on the access means is also displayed based on information on the surrounding environment of the investigation position.

[0095] [Surrounding environment information] FIG. 17 is a diagram showing information and the like stored in the storage unit 16 of this embodiment. Note that parts already described in FIG. 3 are denoted by the same reference numerals and description thereof is omitted.

[0096] The storage unit 16 of this embodiment stores a 3D model 101, an image 103, damage information 105, accessible range information 107, and surrounding environment information 109.

[0097] The surrounding environment information 109 is information indicating the environment around the structure to be investigated or the environment around the investigation position. Examples of the surrounding environment information 109 include information indicating whether the lower surface scaffold environment is the ground or water surface. Further, the surrounding environment information 109 may include information on whether the lower surface scaffold environment is flat or sloped, or whether it is leveled or unleveled when the lower surface scaffold environment is the ground. Further, the surrounding environment information 109 may include information on whether it is a river or sea, the flow rate, and the wave strength when the lower surface scaffold environment is the water surface. Other examples of the surrounding environment information 109 include information on the site environment. For example, the information on the site environment is, for example, information on the vegetation (such as trees) around the structure to be investigated, the road type (expressway, national highway, prefectural road, municipal road) of the road that the structure to be investigated has, and the land use area type (residential area, commercial area, industrial area) of the area where the structure to be investigated is located. Other examples of the surrounding environment information 109 include information on the meteorological environment around the structure. The information on the meteorological environment is, for example, the average wind speed. Other examples of the surrounding environment information 109 include information on the traffic volume around the structure and the presence of electric wires.

[0098] [Access means when the lower surface scaffold environment is water surface] FIGS. 18 and 19 are diagrams showing examples of access means when the lower surface scaffold environment is water surface.

[0099] FIG. 18 is a conceptual diagram showing an unmanned aerial vehicle (drone) 214 which is an example of access means.

[0100] The unmanned aerial vehicle 214 accesses the survey location by flying. For example, in the case of a survey location at a high position or a place where it is impossible to secure a scaffold for access means such as the sea or a river, it becomes an effective access means. The unmanned aerial vehicle 214 has a camera 214A, and can capture a photographed image of the survey location with the camera 214A.

[0101] FIG. 19 is a conceptual diagram showing a bridge inspection ship 216 which is an example of access means.

[0102] The bridge inspection ship 216 can access the survey location even when the scaffold for accessing the survey location is on the water surface. The bridge inspection ship 216 moves on the water surface and moves the basket 216B by expanding and contracting the boom 216A to access a desired survey location.

[0103] [Display of Information on Access Means] The information acquisition unit 51 acquires the surrounding environment information 109 by the storage unit 16. Then, the information display unit 57 displays information on access means for accessing the survey location based on the designated survey location, the accessible range information 107, and the surrounding environment information 109.

[0104] FIG. 20 is a diagram showing an example of the display of information on access means displayed on the display unit 30 by the information display unit 57.

[0105] On the 3D model 270 of the bridge, survey locations (1) to (5) are designated.

[0106] As the access means for accessing the survey location (1) (indicated by reference numeral 272), a bridge inspection vehicle 207 is presented. In addition, in the case of work on an important road with heavy traffic, restrictive conditions due to the surrounding environment based on the surrounding environment information 109 such as difficulty in long-term traffic control may be presented accordingly.

[0107] The access means for accessing the survey location (2) (indicated by reference numeral 274) is presented by the investigator 211A using rope access. According to the surrounding environment information 109, there is a tree 284 at the scaffold and vehicles cannot enter. Therefore, access by the investigator 211A using rope access is presented as the access means for the survey location (2).

[0108] The access means for accessing the survey location (3) (indicated by reference numeral 276) is presented by the aerial work platform 203. Since the survey location (3) is on the ground 282, it is possible to access it by the aerial work platform 203.

[0109] The access means for accessing the survey location (4) (indicated by reference numeral 278) is presented by the unmanned aerial vehicle 214. Since the survey location (4) is on the water surface 286, it is possible to access the survey location (4) by the unmanned aerial vehicle 214. Note that the unmanned aerial vehicle 214 cannot fly in a place with strong winds, but according to the surrounding environment information 109, the area around the survey location (4) has weak winds, so the unmanned aerial vehicle 214 is presented because it can fly.

[0110] The access means for accessing the survey location (5) (indicated by reference numeral 280) is presented by the bridge inspection ship 216. Since the survey location (5) is on the water surface, the bridge inspection ship 216 is presented.

[0111] When the lower surface is the water surface 286 as in the survey locations (4) and (5), access by the unmanned aerial vehicle 214, the bridge inspection ship 216, and a floating scaffold is required.

[0112] As described above, in the present embodiment, the access means for accessing the designated survey location is presented based on the accessible range information 107 and the surrounding environment information 109. Thereby, it is possible to present an effective access means according to the surrounding environment to the user.

[0113] <Third Embodiment> Next, a third embodiment will be described. In this embodiment, in addition to presenting the access means, an estimate of the investigation time is also presented.

[0114] [Unit investigation required time information] FIG. 21 is a diagram showing information stored in the storage unit 16 of this embodiment. Note that parts already described in FIG. 3 are denoted by the same reference numerals and the description thereof is omitted.

[0115] The storage unit 16 of this embodiment mainly stores a three-dimensional model 101, an image 103, damage information 105, accessible range information 107, and unit investigation required time information 111.

[0116] The unit investigation required time information 111 is information regarding the time required for the investigation. For example, the unit investigation required time information 111 includes information regarding the preparation time of the access means, the unit investigation time, and the withdrawal time. Note that the unit investigation required time can be changed according to the user's situation. The user's situation is, for example, the proficiency in handling the access means of the investigator.

[0117] FIG. 22 is a diagram showing an example of the unit investigation required time for each access means.

[0118] FIG. 22 shows information regarding the preparation time, the unit investigation time, and the withdrawal time of each access means of "person", "ladder", "rope access", "aerial work platform", and "bridge inspection vehicle".

[0119] The information acquisition unit 51 acquires the unit investigation required time from the storage unit 16. Then, based on the investigation position and the unit investigation required time information 111, the information display unit 57 calculates at least one of the required time for each investigation position and the required time for conducting the investigation at all investigation positions, and displays the calculated required time.

[0120] [Calculation of investigation time] As shown below, the information display unit 57 calculates the required time based on the unit survey required time information 111 shown in FIG. 22 for the survey positions (1) to (4) described in FIG. 16. FIG. 22 shows the preparation time, unit survey time, and withdrawal time for each access means of "person", "ladder", "rope access", "aerial work platform", and "bridge inspection vehicle".

[0121] The information display unit 57 calculates the survey time for the survey position (1) as follows.

[0122] Survey time for survey position (1) = Installation time of access means A + Unit survey time of access means A × Floor slab survey area + Withdrawal time of access means A The information display unit 57 calculates the survey time for the survey position (2) as follows.

[0123] Survey time for survey position (2) = Installation time of access means B + Unit survey time of access means B × Upper part of pier survey area + Withdrawal time of access means B The information display unit 57 calculates the survey time for the survey position (3) as follows.

[0124] Survey time for survey position (3) = Installation time of access means C + Unit survey time of access means C × Middle part of pier survey area + Withdrawal time of access means C The information display unit 57 calculates the survey time for the survey position (4) as follows.

[0125] Survey time for survey position (4) = Installation time of access means D + Unit survey time of access means D × Lower part of pier survey area + Withdrawal time of access means D Incidentally, the candidates for the above-described access means A are rope access and bridge inspection vehicle 207, the candidates for access means B are rope access and bridge inspection vehicle 207, the candidates for access means C are rope access, aerial work vehicle 203, and bridge inspection vehicle 207, and the candidates for access means D are ladder 213, rope access, aerial work vehicle 203, and bridge inspection vehicle 207. The information display unit 57 calculates the inspection time for each inspection position based on the inspection times of the above-described inspection positions (1), (2), (3), and (4) and the unit inspection required time information 111 shown in the above-described formula and FIG. 22.

[0126] In addition, the information display unit 57 can also calculate the total inspection time for performing all the inspections at the inspection positions (1) to (4). For example, the information display unit 57 calculates the total inspection time for each combination of the candidates for the access means A to D, and can also present the combination of access means (access means A / access means B / access means C / access means D) with the minimum inspection time. Incidentally, when the same access means is used at a plurality of inspection positions, the preparation time and the withdrawal time are shortened, and the total inspection time is calculated.

[0127] As described above, in the present embodiment, in addition to presenting the access means, it is possible to provide the user with information on the inspection time corresponding to the access means. Thereby, the user can grasp the inspection time together with the access means. In addition, the user can select the access means based on the inspection time.

[0128] <Fourth Embodiment> Next, the fourth embodiment will be described. In the present embodiment, in addition to presenting the access means, an estimate of the inspection cost is also presented.

[0129] [Cost Information] FIG. 23 is a diagram showing the information stored in the storage unit 16 of the present embodiment. Incidentally, the parts already described in FIG. 3 are denoted by the same reference numerals and the description thereof is omitted.

[0130] The storage unit 16 of the present embodiment mainly stores the 3D model 101, the image 103, the damage information 105, the accessible range information 107, and the cost information 113. For the parts already described in FIG. 3, the same reference numerals are given and the description is omitted.

[0131] The cost information 113 is information regarding the costs required for the investigation. For example, the cost information 113 is composed of investigation costs (visual inspection + tapping, photography, traffic control, etc.), rental costs, and preparation (arrangement, etc.) costs. Note that the cost information 113 can be changed according to the user's situation. The user's situation means that, for example, when the user has access means, the rental cost is set to 0.

[0132] [Calculation of Investigation Costs] FIG. 24 is a diagram showing an example of the cost information. As shown below, the information display unit 57 calculates the investigation cost based on the cost information 113 shown in FIG. 24 for the investigation positions (1) to (4) described in FIG. 16. The cost information 113 shows the investigation costs, rental costs, and preparation costs of each access means of "person", "ladder", "rope access", "scissor lift", and "bridge inspection vehicle".

[0133] The information display unit 57 calculates the cost based on the investigation position and the cost information 113. For example, the investigation costs for the investigation positions (1) to (4) described in FIG. 16 are calculated as follows.

[0134] The information display unit 57 calculates the investigation cost for the investigation position (1) as follows.

[0135] Cost of investigation position (1) = Investigation time of access means A × Investigation cost of access means A + Rental cost of access means A + Preparation cost of access means A The information display unit 57 calculates the investigation cost for the investigation position (2) as follows.

[0136] Cost of investigation position (2) = Investigation time of access means B × Investigation cost of access means B + Rental cost of access means B + Preparation cost of access means B The information display unit 57 calculates the investigation cost of the investigation position (3) as follows.

[0137] Cost of investigation position (3) = Investigation time of access means C × Investigation cost of access means C + Rental cost of access means C + Preparation cost of access means C The information display unit 57 calculates the investigation cost of the investigation position (4) as follows.

[0138] Cost of investigation position (4) = Investigation time of access means D × Investigation cost of access means D + Rental cost of access means D + Preparation cost of access means D Note that the candidates for access means A are rope access and bridge inspection vehicle 207, the candidates for access means B are rope access and bridge inspection vehicle 207, the candidates for access means C are rope access, aerial work platform 203, and bridge inspection vehicle 207, and the candidates for access means D are ladder 213, rope access, aerial work platform 203, and bridge inspection vehicle 207. The information display unit 57 calculates the investigation cost of each investigation position based on the above-described formulas and the cost information 113 shown in FIG. 24 for the investigation times of the above-described investigation positions (1), (2), (3), and (4).

[0139] In addition, the information display unit 57 can also calculate the total cost for performing all the investigations at the investigation positions (1) to (4). For example, the information display unit 57 calculates the total cost for each combination of candidates for access means A to D, and presents the combination of access means (access means A / access means B / access means C / access means D) that results in the minimum cost. Note that when the same access means is used at multiple investigation positions, the rental cost and the preparation cost are reduced, and the total cost is calculated.

[0140] As described above, in the present embodiment, in addition to presenting the access means, information regarding the investigation cost corresponding to the access means can be provided to the user. Thereby, the user can grasp the investigation cost together with the access means. Further, the user can select the access means based on the investigation cost.

[0141] <Fifth Embodiment> Next, the fifth embodiment will be described. In this embodiment, a shooting position for shooting the investigation position is presented.

[0142] [Shooting Conditions] FIG. 25 is a diagram showing information and the like stored in the storage unit 16 of the present embodiment. Note that portions already described in FIG. 3 are denoted by the same reference numerals and the description thereof is omitted.

[0143] The storage unit 16 of the present embodiment mainly stores a three-dimensional model 101, an image 103, damage information 105, accessible range information 107, and shooting conditions 115.

[0144] The shooting conditions 115 are conditions for acquiring a shooting image used for the investigation. The shooting conditions 115 include, for example, at least one of subject resolution, allowable tilt angle, and range information of focal length.

[0145] [Calculation of Shooting Position] The information acquisition unit 51 acquires the shooting conditions 115 from the storage unit 16. Then, the information display unit 57 calculates the shooting position from the investigation position specified by the three-dimensional model, the accessible range information 107, and the shooting conditions 115. Specifically, the information display unit 57 calculates and presents the shooting position for shooting the investigation position from the shooting conditions 115. Further, the information display unit 57 presents access means for accessing the calculated shooting position.

[0146] FIG. 26 is a diagram for explaining the presentation of the shooting position.

[0147] FIG. 26 shows a three-dimensional model 300 of a bridge, on which an investigation position 302 and an investigation position 306 are specified. The information display unit 57 presents a group of candidate shooting positions 304 for the investigation position 302 and a group of candidate shooting positions 308 for the investigation position 306. The investigation position for an investigation position is not necessarily just one location, and there is a group of candidate shooting positions. Therefore, the information display unit 57 calculates and presents a group of candidates for each investigation position. In the case shown in FIG. 26, the shooting position is schematically illustrated at point P, but the group of candidate shooting positions exists continuously with the angle and / or distance being continuously changed. Specifically, for the group of candidate shooting positions, there is a range of shooting angles that satisfy the shooting condition 115 according to the allowable pitching angle. Also, for the group of candidate shooting positions, there is a range of shooting distances that satisfy the shooting condition (desired subject resolution) 115 according to the range of the focal length. Note that the information display unit 57 presents an access means that can access at least one of the calculated group of candidates, but in the case shown in FIG. 26, the presentation of the access means is omitted.

[0148] As described above, in the present embodiment, a shooting position for shooting an investigation position and an access means for accessing the shooting position are presented. Thereby, the user can easily grasp the shooting position and the access means for accessing the shooting position.

[0149] <Examples of Other Access Means> In addition to the access means to the investigation position described above, various access means are adopted in the embodiment. Examples of other access means will be described below.

[0150] FIG. 27 is a diagram showing a gondola car which is an example of an access means.

[0151] The gondola car 310 moves the boom 310A to move the gondola 310B under the bridge 311. Then, the gondola car 310 moves the gondola 310B in the vertical direction with a wire, whereby an investigator can access the investigation position.

[0152] FIG. 28 is a diagram showing a working range diagram which is an example of the accessible range information 107 of the gondola car 310.

[0153] The working range diagram 312 shows the working range of the gondola car 310. Specifically, the working range diagram 312 shows the vertical reach range and the horizontal working radius of the gondola 310B of the gondola car 310.

[0154] FIG. 29 is a diagram showing a suspended robot which is an example of the access means.

[0155] The suspended robot 314 is installed on a part of the bridge 315 and is operated manually or automatically. The suspended robot 314 is equipped with a camera 314A and can take pictures in the vicinity of the inspection position.

[0156] FIG. 30 is a diagram showing a pole camera which is an example of the access means.

[0157] The pole camera 317 shown in FIG. 30(A) is taking a picture of the inspection position of the bridge 319 from the ground. In this way, the investigator can obtain a photographed image of the inspection position at the upper part of the bridge 319 with the camera 317A by using the pole camera 317.

[0158] The pole camera 317 shown in FIG. 30(B) is taking a picture of the inspection position by directing the inspection position of the bridge 319 downward from the bridge 319. In this way, the investigator can obtain a photographed image of the back side of the bridge 319 with the camera 317A by directing the pole camera 317 downward.

[0159] <Others> In the above description, the information acquisition unit 51 has been described in terms of the form of acquiring the information stored in the storage unit 16, but it is not limited thereto. For example, when the necessary information is not stored in the storage unit 16, the information acquisition unit 51 may acquire information from the outside via the input / output interface 12. Specifically, the information acquisition unit 51 acquires the information input via the input / output interface 12 from the outside of the structure investigation support device 10.

[0160] In the above embodiment, the hardware structure of the processing unit that executes various processes is various processors as shown below. The various processors include a CPU (Central Processing Unit), which is a general-purpose processor that executes software (program) and functions as various processing units, a programmable logic device (PLD), such as an FPGA (Field Programmable Gate Array), which is a processor whose circuit configuration can be changed after manufacture, and an application-specific electric circuit, which is a processor having a circuit configuration specifically designed to execute specific processes, such as an ASIC (Application Specific Integrated Circuit).

[0161] One processing unit may be composed of one of these various processors, or may be composed of two or more processors of the same or different types (for example, a plurality of FPGAs, or a combination of a CPU and an FPGA). Also, a plurality of processing units may be composed of one processor. As an example of configuring a plurality of processing units with one processor, first, as represented by a computer such as a client or a server, one processor is configured by a combination of one or more CPUs and software, and this processor functions as a plurality of processing units. Second, as represented by a System On Chip (SoC), there is a form in which a processor that realizes the functions of an entire system including a plurality of processing units with one IC (Integrated Circuit) chip is used. Thus, various processing units are configured as a hardware structure using one or more of the above various processors.

[0162] Furthermore, more specifically, the hardware structure of these various processors is an electric circuit (circuitry) that combines circuit elements such as semiconductor elements.

[0163] Each of the above-described configurations and functions can be appropriately realized by any hardware, software, or a combination of both. For example, the present invention can also be applied to a program that causes a computer to execute the above-described processing steps (processing procedures), a computer-readable recording medium (non-transitory recording medium) that records such a program, or a computer to which such a program can be installed.

[0164] Although the examples of the present invention have been described above, it goes without saying that the present invention is not limited to the above-described embodiments, and various modifications are possible without departing from the spirit of the present invention.

Explanation of Reference Numerals

[0165] 10: Structure investigation support device 12: Input / output interface 16: Storage unit 18: Operation Unit 20: CPU 22: RAM 24: ROM 26: Display Control Unit 30: Display Unit 51: Information Acquisition Unit 53: 3D Model Display Unit 55: Designation Reception Unit 57: Information Display Unit 101: 3D Model 103: Image 105: Damage Information 107: Accessible Range Information 109: Surrounding Environment Information 111: Unit Investigation Time Required Information 113: Cost Information 115: Shooting Conditions 203: Aerial Work Platform 207: Bridge Inspection Vehicle 213: Ladder 214: Unmanned Aerial Vehicle 216: Bridge Inspection Boat 310: Gondola 314: Suspended Robot 317: Pole Camera

Claims

1. Accessible range information including information regarding the working range of access means for accessing a structure, A three-dimensional model of the structure to be investigated, Based on the damage of the structure to be investigated, investigation position information indicating the investigation position specified based on the damage, Determination means for determining whether or not the access means can access the investigation position, An information processing apparatus characterized by comprising the above.

2. The information processing apparatus according to claim 1, which automatically accepts the designation of the investigation position.

3. The determination means performs determination for a plurality of types of the access means, Based on the result of the determination, an output unit that outputs information on one or more types of the access means for accessing the investigation position, The information processing apparatus according to claim 1 or 2, characterized by comprising the above.

4. The determination means makes a determination based on the surrounding environment of the structure to be investigated or the surrounding environment information indicating the surrounding environment of the investigation position, and the information processing apparatus according to any one of claims 1 to 3.

5. The determination means determines whether or not each of the plurality of types of access means can access the investigation position based on the investigation position and the working range of each of the plurality of types of access means, and the information processing apparatus according to any one of claims 1 to 4.

6. An information processing method performed by a computer, A step of obtaining accessible range information including information regarding the working range of access means for accessing a structure, A step of obtaining a three-dimensional model of the structure to be investigated, A step of obtaining investigation position information indicating the investigation position specified based on the damage of the structure to be investigated, A step of determining whether or not the access means can access the investigation position, Characterized by including the above.

7. A program for causing a structure investigation support apparatus including a processor to execute a structure investigation support method, By the processor, A step of obtaining accessible range information including information regarding the working range of access means for accessing a structure, A step of obtaining a three-dimensional model of the structure to be investigated, A step of obtaining investigation position information indicating the investigation position specified based on the damage of the structure to be investigated, A step of determining whether or not the access means can access the investigation position, A program for causing the above to be executed.

Images