Structure state display system

Abstract

To provide means of displaying a screen that enables intuitive understanding of the state of a structure.SOLUTION: A structure state display system is provided, comprising measurement means arranged on a structure to measure physical quantities of the structure, acquisition means for acquiring measurement information measured by the measurement means, generation means configured to apply virtual physical quantities corresponding to the measurement information to a design model including the structure to generate a virtual model including information representing the virtual physical quantities, and display control means for causing display means to display the virtual model generated by the generation means in such a way that ranges with the virtual physical quantities exceeding predetermined values are shown in different colors.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a structure status display system. [Background technology]

[0002] A displacement recording system for a base-isolated building is known that calculates the amount of strain on the base isolation device due to an earthquake and the external force applied to the building (see, for example, Patent Document 1).The system detects the three-dimensional acceleration applied to the base isolation device due to the shaking of the ground when an earthquake occurs using an acceleration detector on the base isolation device, and detects the acceleration caused by the shaking of the building due to resonance with long-period seismic motion using an acceleration detector on the building.The detected accelerations are then subjected to a predetermined calculation to calculate the amount of strain on the base isolation device and the amount of deformation of the building, and the amounts of strain and deformation are displayed on a display means.

[0003] Also, a method for inspecting concrete structures is known in which a sensor is inserted into an inspection hole in the wall of the concrete structure and information from the sensor is read to determine the internal quality of the concrete structure (see, for example, Patent Document 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2020-12723 [Patent Document 2] Japanese Patent Application Publication No. 2018-13404 Summary of the Invention [Problem to be solved by the invention]

[0005] The displacement recording system described in the above-mentioned Patent Document 1 is capable of monitoring the distortion of the seismic isolation device and the deformation of the building in real time when an earthquake occurs by displaying the distortion of the seismic isolation device calculated by the seismic isolation device displacement calculation means and the deformation of the building calculated by the building displacement calculation means. However, while inspectors who are accustomed to monitoring can understand the condition of the building simply by looking at the display of the distortion and deformation, there is a problem in that other people are unable to understand the condition of the building, or find it very difficult to do so.

[0006] Furthermore, in the concrete structure inspection method of Patent Document 2, even if multiple sensors are installed to the extent that the condition of the entire concrete structure can be grasped, there is a problem in that it is very difficult for anyone other than an inspector to grasp the condition of the structure based on the information obtained from each sensor.

[0007] The present invention was made in consideration of the above problems through extensive research by the inventors, and has as its object to provide a means for displaying a screen that allows intuitive understanding of the status of a structure. [Means for solving the problem]

[0008] The structure status display system of the present invention is characterized by comprising: measuring means disposed in the structure and measuring physical quantities related to the structure; acquiring means for acquiring measurement information measured by the measuring means; creating means for applying virtual physical quantities corresponding to the measurement information to a design model including the structure and creating a virtual model including information indicating the virtual physical quantities; and display control means for displaying the virtual model created by the creating means on a display means, color-coding ranges in which the virtual physical quantities exceed predetermined values. [Effects of the Invention]

[0009] According to the present invention, a screen that allows intuitive understanding of the status of a structure can be displayed using a simple structure. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a diagram showing the overall configuration of a structure status display system according to an embodiment of the present invention; [Figure 2] FIG. 2 is an enlarged perspective view of the structure of the building. [Figure 3] FIG. 10 is a perspective view showing a structural example in which a screw member is used as a male threaded body. [Figure 4] FIG. 2 is a perspective view showing a head portion of the screw member of the present embodiment. [Figure 5] 3A and 3B are views showing a shaft portion of the screw member of the present embodiment. [Figure 6] FIG. [Figure 7] FIG. 2 is a block diagram showing the configuration of a board mounted on the head. [Figure 8] 1 is a block diagram showing a monitoring device according to an embodiment of the present invention; [Figure 9] FIG. 10 is a diagram showing a virtual model image. [Figure 10] FIG. 10 is a diagram illustrating an example of a virtual model image. [Figure 11] FIG. 1 is a diagram illustrating an example of a wide-area map. [Figure 12] FIG. 1 shows an example of a map of a local area. [Figure 13] FIG. 10 is a diagram illustrating a display example of a mapping image. [Figure 14] FIG. 10 is a diagram illustrating a display example of a mapping image. [Figure 15] FIG. 10 is a diagram illustrating a display example of a mapping image. [Figure 16] FIG. 10 is a diagram illustrating a display example of a mapping image. DETAILED DESCRIPTION OF THE INVENTION

[0011] An embodiment of a structure status display system of the present invention will be described below with reference to the drawings. Fig. 1 is a diagram showing the overall configuration of a structure status display system 1 of this embodiment. Here, the display of building structures (columns, beams, etc.) will be described as an example. However, it is also possible to display structures related to various structures other than buildings, such as bridges, roads, railway rails, traffic lights, utility poles, steel towers, wind power generation towers and blades, airport terminals, hospitals, government buildings, tunnels, dams, waterwheels, watergates, and offshore facilities, various building and structural materials used therein, industrial machinery such as construction machinery and machine tools, and other mechanical devices, as well as consumables such as fasteners, gears, blades, and holding members that make up these devices, or elemental parts such as springs, bearings, and linear guides, as well as various means of transportation such as rockets, aircraft, submarines, ships, trains, buses, trucks, passenger cars, motorcycles, bicycles, and elevators.

[0012] The structure status display system 1 is composed of multiple structures 10 such as buildings and bridges, screw members 30 used as construction components for the structures 10, and a monitoring device 100 connected to the screw members 30 via wire or wirelessly.

[0013] The screw members 30 are externally or internally threaded bodies, washers, or the like, and are preferably used in the basic structural members (structures) of the building 10. Specifically, as shown in FIG. 2, the screw members 30 are used in a plurality of locations, such as joints connecting the columns 12, which are rectangular steel columns extending vertically in the building 10, and joints connecting the beams 14, which are H-shaped steel members extending horizontally from the columns 12. In other words, the screw members 30 are mainly used in locations where the structural members (frame members) of the building 10 are joined. In this way, the screw members 30 are involved in joining the structural members together, and can indirectly bear the internal stresses that occur in the structural members.

[0014] In particular, it is preferable to select locations where the axial directions (fastening directions) of the multiple screw members 30 are different from one another, as shown in Figure 2. In this way, the screw members 30 can be used as a measuring device that can three-dimensionally measure the state of stress acting on the structure of the building 10 from the front and back, left and right, and top and bottom.

[0015] 3 shows a structural example in which a screw member 30 is used as a male threaded body. The screw member 30 is a so-called bolt, and has a head 32 and a shank 34. A separate head cap 36 is attached (fitted) to the head 32 of the screw member 30.

[0016] A substrate for detecting stresses such as bending stress, compressive stress, tensile stress, and torsional stress is mounted inside head 32. Specifically, the substrate is mounted by placing it in head 32 and attaching head cap 36. Note that the location of the substrate is not necessarily limited to head 32, and it may be, for example, at the tip of shaft 34.

[0017] 4 is a perspective view showing the head 32 of the screw member 30 of this embodiment. The head 32 has a hexagonal outer peripheral shape and three pairs of flat widths. The head 32 also has an outer shape in which the maximum dimension in the axially orthogonal direction perpendicular to the axis is greater than that of the shank 34, i.e., the length (width) in the axially orthogonal direction is greater than that of the shank 34. The head 32 has a continuous, concave current path arrangement portion 40 that extends from one surface of the outer peripheral surface to the seating surface. The head 32 also has a fitting portion 42 at one end into which the head cap 36 can be fitted.

[0018] FIG. 5 is a diagram showing the shank 34 of the screw member 30 of this embodiment. Note that a sensor pattern 132, which will be described later, is omitted from FIG. 5. The shank 34 has an outer shape in which the length in the axial direction is longer than the maximum dimension in the direction perpendicular to the axis. The shank 34 includes a cylindrical portion 50 located at the base or bearing surface side of the head 32, and a threaded portion 52 having a male screw helical groove formed on the outer circumferential surface. That is, the cylindrical portion 50 is located at one end of the shank 34 where the head 32 is located, and the threaded portion 52 is located at the other end.

[0019] The cylindrical portion 50 has a columnar outer peripheral shape and a reduced portion 50a where the outer shape is reduced so that a portion of the cylindrical portion 50 is constricted. The length of this reduced portion 50a in the direction perpendicular to the axis is set to be approximately the root diameter or effective diameter of the male thread of the threaded portion 52, which in this embodiment is approximately the same as the effective diameter of the male thread. The cylindrical portion 50 has a sensor mounting portion 54 recessed into the outer peripheral surface. The sensor mounting portion 54 has a flat bottom surface and extends from the middle of the reduced portion 50a toward the head 32 along the axial direction.

[0020] The threaded portion 52 has, in a superimposed manner, a first male thread spiral structure having a spiral groove with a predetermined lead angle and / or lead direction, and a second male thread spiral structure having a spiral groove set at a lead angle and / or lead direction different from that of the first male thread spiral structure.

[0021] Here, two types of male thread helical structures are formed overlapping in the same region in the axial direction of the threaded member 30: a first male thread helical structure that is a right-handed thread and that is configured to be able to threadably engage with a corresponding right-handed female thread-like helical ridge, and a second male thread helical structure that is a left-handed thread and that is configured to be able to threadably engage with a corresponding left-handed female thread-like helical ridge. Of course, the first male thread helical structure and the second male thread helical structure may be helical structures with the same right-handed lead direction, but with different lead angles. Note that the helical grooves do not necessarily have to be overlapping, but it is preferable for them to have a mechanism that can suppress loosening of the joining member in order to perform precise and accurate strain and stress measurements.

[0022] Therefore, the threaded portion 52 can be threadedly engaged with either a right-handed or left-handed female-threaded body. For details of the threaded portion 52 on which two types of male-thread spiral grooves are formed, please refer to Japanese Patent No. 4663813, which is owned by the inventor of the present application.

[0023] A sensor pattern 62 for detecting stress occurring in the shank 34 is formed directly on the bottom surface of the sensor mounting section 54. That is, the sensor pattern 62 can function as a strain measurement sensor for measuring strain occurring in the screw member 30. The sensor pattern 62 is made of a conductive material and is composed of a sensor structure portion that extends back and forth in the axial direction multiple times and a lead portion that extends from the sensor structure portion toward the head 32. Therefore, the electrical characteristics of the sensor pattern 62, such as resistance, change as the conductive material in the sensor structure portion deforms. By detecting this change in electrical characteristics, the sensor pattern 62 can be used as a strain sensor that detects physical changes in the shank 34.

[0024] The physical change detected by the change in the electrical characteristics may be a heat / temperature change, a humidity change, or the like. For example, when measuring the environmental temperature from the change in the electrical resistance value of the sensor pattern 62 (i.e., calculating temperature data), the sensor pattern 62 is used as a component of a so-called resistance thermometer. Similarly, the sensor pattern 62 may be used as a resistance change type electric humidity sensor to measure humidity (i.e., calculate humidity data). Such a sensor pattern 62 is electrically connected to an electric path 64 formed on the head 32 side.

[0025] Next, the electric path installation portion 40 and the fitting portion 42 of the head portion 32 will be described. The electric path installation portion 40 shown in FIG. 3 has a flat bottom surface of its concave cross section, and the electric path 64 is directly formed on the bottom surface. The electric path installation portion 40 extends along the axial direction on the outer peripheral surface of the head portion 32, and its extension direction is set so as to extend perpendicular to the axial direction on the seating surface. Note that the extension direction of the electric path installation portion 40 can be set as appropriate, for example, by extending in a direction inclined with respect to the axial direction on the outer peripheral surface, as long as it is continuous over at least the outer peripheral surface and seating surface of the head portion 32. The depth, width, etc. of the electric path installation portion 40 can also be set as appropriate.

[0026] The fitting portion 42 has a cylindrical shape that protrudes in the axial direction from the end face (end) of the head 32. The fitting portion 42 also has a plurality of locking grooves (locking portions) 44 on its outer circumferential surface as shown in Fig. 4. Furthermore, a terminal 60 electrically connected to a current path 64 is directly formed on the end face of the fitting portion 42.

[0027] The locking groove 44 formed on the outer peripheral surface of the fitting portion 42 has a shape, for example, an approximately L-shape, into which the locking piece 36a (see Figure 6) of the head cap 36 can be inserted and which can regulate the position of the head cap 36 in the axial direction.

[0028] In this case, the locking groove 44 includes an axial guide portion 45 and a circumferential guide portion 46. The axial guide portion 45 extends from the insertion opening 44a along the axis and guides the axial movement of the locking piece 36a. The circumferential guide portion 46 is curved or bent in the circumferential direction relative to the axial guide portion 45, and forms a restricting end portion 44b at its terminal end. The restricting end portion 44b is a bent portion that extends toward the top surface side of the head portion 32 along the axial direction. The locking piece 36a fits into the restricting end portion 44b, thereby restricting the axial and circumferential movement of the locking piece 36a.

[0029] FIG. 6 is a perspective view showing the head cap 36. The head cap 36 is attached by covering the fitting portion 42 of the head 32, and has a plurality of protruding locking pieces 36a on its inner circumferential surface. It is desirable to interpose an intervening member between the head 32 and the head cap 36. The intervening member is a so-called sealing member, packing, or the like, and is made of a flexible material, for example, an elastic body such as rubber or silicone. Of course, the flexible member here is not limited to a resin material, and is not particularly limited as long as it can be elastically and / or plastically deformed to obtain a firm fitting state.

[0030] Next, an example of the formation of the terminal 60, the sensor pattern 62, and the current path 64 will be described. First, the terminal 60, the sensor pattern 62, and the current path 64 are formed directly on the surface of the screw member 30. For example, if the base material of the screw member 30 is conductive, an electrical insulating layer is formed on the surface of the screw member 30, and then a conductive portion forming the patterns of the terminal 60, the sensor pattern 62, and the current path 64 is formed on the electrical insulating layer using a material with good electrical conductivity, such as a conductive material.

[0031] The electrical insulating layer can be formed by, for example, lamination printing, pad printing, painting, plating, inkjet printing, sputtering, chemical vapor deposition (CVD), physical vapor deposition (PVD), etc. Alternatively, other techniques may be used, such as forming a film of an insulating material by sputtering with a predetermined mask in place, applying a silica material and then heat treating it, or forming a layer of an organic insulating material such as a polyimide, epoxy, urethane, silicone, or fluorine-based material.

[0032] If the base material of the screw member 30, i.e., the head 32 or the shank 34, is electrically conductive, the surface of the base material may be subjected to an oxidation treatment to form an oxide film, which serves as an electrical insulating layer. Furthermore, if the base material is aluminum, the electrical insulating layer may be provided by anodizing. Of course, the electrical insulating layer is not limited to being formed by these methods. Furthermore, if the base material of the screw member 30 is electrically insulating, conductive portions forming the patterns of the terminal 60, the sensor pattern 62, and the electrical path 64 may be formed directly on the base material without forming an electrical insulating layer.

[0033] The conductive portion is formed directly on the electrical insulating layer by lamination printing using a conductive paste, pad printing, painting, plating, inkjet printing, sputtering, CVD, PVD, or the like. The conductive portion may also be shaped by etching after applying masking that matches the shapes of the terminals 60, sensor pattern 62, and current-carrying paths 64. By forming the conductive portion directly on the electrical insulating layer in this way, the conductive portion will not peel off over a long period of time.

[0034] Of course, the terminal 60, the sensor pattern 62, and the current path 64 may be formed in series on the screw member 30. In this case, it is preferable to form a curved surface shape by performing processing such as rounding and chamfering on the boundary portion 32a between the parallel surface parallel to the axis existing in the axial direction of the screw member 30 and the orthogonal surface approximately perpendicular to the parallel surface. In this way, the conductive portion can be formed more easily than when the conductive portion is formed on a surface where the parallel surface and the orthogonal surface form an angle.

[0035] 7 is a block diagram showing the configuration of the board 110 mounted on the head 32. The board 110 is composed of analog circuits and / or IC chips, etc., and has a CPU 112 which is a central processing unit that controls all processing, a high-speed memory RAM 114 for reading and writing temporary data, a read-only memory ROM 116 used to store programs, a writable memory EPROM 118 for storing data, an interface 120 for controlling communication between the board and the outside, an antenna 122 for wireless communication with the outside and for supplying power using external radio waves, a resistance value detection unit 124, and an acceleration sensor 126.

[0036] Also, a power supply means for supplying power to each part of the board 110 is disposed inside the head 32. The power supply means may be an internal battery, a power supply circuit connected to an external power source, or the like.

[0037] The resistance value detection unit 124 is electrically connected to the sensor pattern 62 (described later) to detect a change in the resistance value (electrical characteristic) of the sensor pattern 62 accompanying the deformation of the shaft portion 34, and at the same time, converts this value into digital information and provides it to the CPU 112. As a result, the resistance value data is stored in the EPROM 118.

[0038] The acceleration sensor 126 detects the vibration and movement of the screw member 30 by detecting acceleration in three dimensions, and calculates acceleration data of the screw member 30, including the direction of vibration and movement. This makes it possible to grasp the bending and swaying movements of the structure of the building 10. The acceleration data is stored in the EPROM 118.

[0039] The resistance value data and acceleration data stored in the EPROM 118 are transmitted to the outside via the antenna 122 whenever the monitoring device 110 collects information or at regular intervals.

[0040] The ROM 116 or EPROM 118 stores information (individual identification information) for identifying each individual screw member 30, and the monitoring device 100 registers the address, name, and installation location of the structure 10 in association with the individual identification information. This allows each screw member 30 to be managed individually. Note that part of the substrate 110 employs so-called RFID technology using an IC chip, but the present invention is not limited to this and other technologies may also be used.

[0041] Although the EPROM 118 has been described as being used as a writable memory for storing data, it goes without saying that a PROM may also be used.

[0042] 8 is a block diagram showing a monitoring device 100 according to this embodiment. The monitoring device 100 is a so-called server, and includes a control unit 102 that performs overall control of each unit. A storage unit 104, a model generation unit 106, and a communication unit 108 are connected to the control unit 102.

[0043] The storage unit 104 stores information and programs used in the control process by the control unit 102. The storage unit 104 may be a semiconductor memory, a magnetic memory, an optical memory, or the like, and may function as a main storage device or an auxiliary storage device. The storage unit 104 may also be a cache memory or the like included in the control unit 102. The storage unit 104 may also be a volatile storage device or a non-volatile storage device.

[0044] The storage unit 104 also stores map information. The storage unit 104 also stores the name of the structure 10 in which the screw member 30 is used, location information (such as the address of the structure 10), the installation location of the structure and the screw member 30, the installation direction (azimuth), the installation posture, etc., in association with the individual identification information of the screw member 30. The storage unit 104 also includes a table that accumulates resistance value data, acceleration data, etc., collected from each screw member 30 in chronological order. For example, a table can be set for each design model (described later).

[0045] The storage unit 104 also stores a design model created according to the original design of the building 10 composed of multiple structures. For example, the design model is a blueprint (CAD data) of the building 10, and includes information on the screw members 30 and structures actually used.

[0046] The model generation unit 106 creates a virtual model using the design model stored in the memory unit 104 and the information accumulated in the table. That is, it analyzes the resistance value data and acceleration data for each screw member 30, as well as temperature data and the like, and analyzes how the structure will deform based on the analyzed data from multiple screw members 30. Then, it creates a virtual model that virtually reproduces the overall shape of the building 10 based on the deformation of each structure.

[0047] The communication unit 108 performs communication processing with the screw member 30 and an external terminal via an antenna (not shown). It goes without saying that communication processing by the communication unit 108 is not limited to wireless communication and may be performed by wire. Furthermore, the antenna is not limited to being located within the monitoring device 100, and may be a relay antenna located near the screw member 30 of each building 10.

[0048] The external terminal is not limited to any particular type, as long as it is an information processing terminal capable of displaying a virtual model image and communicating with the monitoring device 100. In other words, the external terminal may be, for example, a smartphone, a mobile phone (feature phone), a PDA (Personal Digital Assistant), a wearable terminal (head-mounted display, glasses-type device, etc.), a tablet terminal, a notebook PC, a desktop PC, or any other device having a computer, arithmetic circuit, monitor, etc.

[0049] Furthermore, communication between the monitoring device 100 and the external terminal may be established via a network, for example, a wireless network or a wired network, specifically a wireless LAN, a wide area network (WAN), ISDNs (Integrated Service Digital Networks), LTE (Long Term Evolution), LTE-Advanced, CDMA (Code Division Multiple Access), a fifth generation mobile communication system (5G), LPWA (Low Power Wide Area), etc. Of course, the network may use Wi-Fi, a public switched telephone network, Bluetooth, an optical fiber line, an ADSL (Asymmetric Digital Subscriber Line) line, a satellite communication network, AM waves, FM waves, etc., or a combination of these.

[0050] According to the structure state display system 1, it is possible to display on an external terminal a virtual model image based on the virtual model generated by the monitoring device 100. Specifically, the monitoring device 100 performs the processes of collecting resistance value data and acceleration data from the screw members 30, as well as temperature data and the like in addition to these, creating a virtual model, and displaying the virtual model image on the external terminal.

[0051] First, on the screw member 30 side, the CPU 112 acquires resistance value data from the resistance value detection unit 124 and acceleration data from the acceleration sensor 126. The CPU 112 stores the resistance value data and acceleration data in association with the individual identification information in the EPROM 118. The CPU 112 also transmits the resistance value data and acceleration data in association with the individual identification information to the monitoring device 100.

[0052] The control unit 102 on the monitoring device 100 side receives the resistance value data and acceleration data associated with the individual identification information from the screw member 30, and generates a virtual model using the model generation unit 106. At this time, the control unit 102 refers to the memory unit 104, identifies the building 10 based on the received individual identification information, and reads out a design model of the building 10.

[0053] The control unit 102 performs a virtual model generation process using the model generation unit 106. The model generation unit 106 identifies the internal stress generated in the structure from the resistance value data of each screw member 30, and identifies the direction and amount of deformation for each structure from the acceleration data of each screw member 30. The model generation unit 106 also applies the internal stress identified for each structure of the design model as a virtual stress, and creates a virtual model consisting of the structure deformed by the virtual stress. At this time, the virtual stress applied to the structure acts in a direction based on the acceleration data identified above.

[0054] The control unit 102 transmits the virtual model to the external terminal via the communication unit 108, thereby causing the external terminal to display a virtual model image on the display screen of the external terminal.

[0055] Figure 9 shows a virtual model image. For example, the virtual model image of a virtual model generated from resistance data and acceleration data acquired during an earthquake displays the structures of building 10 that are tilting due to seismic motion, as well as the internal stresses generated in each structure.

[0056] The internal stress displayed in the virtual model image is shown as a bar graph for intuitive understanding, and the range in which the internal stress exceeds a predetermined value is displayed in a different color. Numerical information indicating the internal stress may also be displayed in the virtual model image. The numerical information indicating the internal stress may be displayed instead of the bar graph, or may be displayed together with the bar graph. Of course, various information is shown in the bar graph here to make it easier to intuitively grasp the state of the structure, but it goes without saying that this is not limited to this.

[0057] According to the above-described structure display system 1, it is possible to detect distortion and / or displacement occurring in the screw members by using a plurality of screw members in the structure of the building 10. The detection results are collected by a monitoring device and can be used as objective data.

[0058] Furthermore, by displaying the virtual model image on the display screen of an external terminal, even users who are unfamiliar with recognizing the state of a building from the deformations and internal stresses that occur in the structure can intuitively recognize the state of the structure and the building, and can use this information to determine dangers such as the collapse or destruction of the building.

[0059] The CPU 112 mounted on the screw member may acquire and transmit the resistance value data and acceleration data approximately simultaneously, or may transmit the resistance value data and acceleration data at predetermined intervals. In this case, the resistance value data and acceleration data stored in the EPROM 118 may be read out in chronological order and transmitted to the monitoring device 100.

[0060] The resistance value may be measured continuously, or at regular intervals, or the acceleration may be measured continuously and the resistance value data may be acquired when the acceleration data deviates from a predetermined range. Furthermore, the resistance value data and the acceleration data may be transmitted simultaneously when the acceleration data deviates from the predetermined range.

[0061] Of course, the resistance value data and acceleration data may be acquired and transmitted at all times, but the resistance value data and acceleration data may also be acquired and transmitted in response to a request from the monitoring device 100.

[0062] Furthermore, measurement data such as resistance value data, acceleration data, temperature data, etc. may be transmitted to the monitoring device 100 in response to a command from the user. That is, when the user inputs a request for measurement data such as resistance value data, acceleration data, temperature data, etc. from the input means (e.g., keyboard, etc.) of the monitoring device 100 or from a user terminal via the monitoring device 100, the monitoring device 100 may receive the measurement data such as resistance value data, acceleration data, temperature data, etc. from the screw member 30.

[0063] The virtual model image may also include composite acceleration information based on the acceleration data. In this case, the acceleration may be configured to be indicated in directions along the X-axis, Y-axis, and Z-axis in a Cartesian coordinate system in three-dimensional space. For example, as shown in FIG. 10, slider-like gauges for the X-axis, Y-axis, and Z-axis and markers that move on these gauges may be displayed, and the acceleration along each axis may be indicated by the movement and / or position of the markers. Of course, numerical information indicating the acceleration may also be displayed side by side.

[0064] Furthermore, the deformed structure in the virtual model image may be displayed in a shape that is larger than the actual deformation amount, for example, as shown in Fig. 10. This is because some structures have high rigidity and therefore hardly deform despite large internal stresses. For such structures, it may be difficult to grasp the state even if the actual deformation amount is displayed. Therefore, by amplifying and displaying the deformation amount, it is possible to obtain the effect of making it easier to intuitively grasp the state of the structure.

[0065] Furthermore, if the monitoring device constantly collects resistance value data, acceleration data, temperature data, etc. and generates virtual models, it will be possible to observe the state of the building in near real time, making it possible to grasp the state of deformation of the building when an earthquake occurs, as well as the state and changes of internal stress, etc. Based on this situation, it will also be possible to determine the priority of maintenance and important areas.

[0066] The monitoring device 100 may further include a determination unit that determines the type of load that applies internal stress. If a determination unit is provided, the type of load may be added to the virtual model so that the type of load is displayed on the virtual model image. Examples of the type of load include earthquake load, wind load, live load (vehicle load or train load), collision load, tsunami load, wave load, and water current load.

[0067] Furthermore, in the above-described embodiment, the internal stress (physical quantity) of the structure based on the resistance value data of the screw members is applied to the design model to create a virtual model, but the acceleration based on the acceleration data of the screw members may be applied as a physical quantity to the design model, or the load of the structure may be identified based on the resistance value data of the screw members and the load may be applied as a physical quantity to the design model to create a virtual model.

[0068] The determination unit can, for example, monitor the resistance value data and acceleration data in a time series to identify whether the load is a sudden load or a steadily occurring load, identify the location of the building 10 where the internal stress has increased, and determine the type of load based on the direction and magnitude of the load, how these change, etc. Of course, the method for determining the type of load is not limited to the above method, and can be set as appropriate.

[0069] The virtual model may be a model including the exterior surface information of the building 10. In other words, the virtual model may be a model capable of displaying the appearance of the building 10. In this case, the storage unit 104 stores in advance the exterior surface information of the building 10, including shape information, surface material information, etc., of the exterior surface of the building 10. Furthermore, the model generation unit 106 is capable of generating a virtual model that reflects the exterior surface information on the design model. Therefore, the exterior surface may be superimposed on the structure of the building 10 in a virtual model image based on the virtual model.

[0070] However, displaying a virtual model image including the exterior surface information may make it difficult to see the locations of internal stresses in the structure due to the exterior surface. Therefore, it may be possible to switch between displaying the exterior surface and displaying the structure excluding the exterior surface. Of course, it is also possible to display only the exterior surface information without superimposing the images.

[0071] Furthermore, by storing a 2D or 3D map model in advance in the storage unit 104, the model generation unit 10 may generate a mapping image in which buildings 10 are arranged at appropriate positions on the map. That is, the model generation unit 106 may generate a mapping image by combining the map model and the virtual model.

[0072] Here, the map model is data for displaying a map image in a virtual coordinate system corresponding to actual orientations on the Earth. The mapping image displays the building 10 in a virtual model image within the map image in an orientation that matches the actual installation orientation. The mapping image may also display the map and / or building 10 in a switchable manner between 2D and 3D. For example, a map of a wide area may be displayed in 2D as shown in FIG. 11, while a map of a local area may be displayed in 3D as shown in FIG. 12. This reduces the processing load on the monitoring device 100 and the external terminal, enabling smooth operational display.

[0073] The mapping image may also display multiple buildings 10. That is, a mapping image may be created by associating a virtual model of each building 10 with a map model. The mapping image may also be able to change the magnification of the area to be displayed and move to any position on the map.

[0074] The 3D map image is a 3D map in a three-dimensional coordinate system corresponding to the orientation on the map (a three-dimensional map created by adding information on the vertical height of the elevation and the building 10 to planar information), and the three-dimensional image of the building 10 is superimposed on the 3D map. At this time, the building 10 may be displayed from any direction or angle. Specifically, the building 10 may be displayed at any elevation at a horizontal angle, at an angle as if looking down from the sky, or at an angle as if looking up from the ground.

[0075] Furthermore, the structure 10 can be displayed in an enlarged or reduced size. This allows any part of the structure 10 (for example, a part where high internal stress is occurring) to be enlarged, or the structure 10 to be displayed in a reduced size so that the entire image is displayed. When the structure 10 is displayed in a reduced size, a 2D or 3D background image of the surrounding area may be displayed. In other words, if there are other structures or the like in the surrounding area, the other structures may be displayed.

[0076] 13 to 16 are diagrams showing examples of mapping image displays when a plurality of screw members 30 are arranged on a steel tower. The screen of the mapping image displayed on the external terminal is located on the right side of the screen shown in Fig. 13 and includes a display area that displays the steel tower as a structure on a map, a screw member position display area in which the locations of the screw members 30 are superimposed on a top view (TOP View) or a side view (SIDE View) of the steel tower, and a stress display area that shows the internal stress occurring in each screw member 30 arranged on the steel tower, a designated member display area, etc.

[0077] The display area displays an image of a steel tower superimposed on a background image, as well as information indicating the direction. Note that although the background image is displayed in the display area, it may be possible to switch the display to an image that displays only the steel tower without the background image, as shown in Figure 14.

[0078] The screw member position display area indicates the position of the screw member 30 by marking the location where the screw member 30 is disposed in the top view or side view of the pylon with a circle or other mark. The member position display area displays the top view and side view of the pylon, but the display may be switchable to show the pylon in any other orientation, such as a side view seen from a different side.

[0079] The external terminal may also accept an input operation so that a screw member 30 can be designated from the pylon while the mapping image is being displayed. That is, when a screw member 30 used in the pylon being displayed is designated, the installation direction and installation posture of the designated screw member 30 may be displayed so that they can be visually confirmed. In this case, the screw member 30 may be designated by inputting into an input field for designating the screw member, or may be designated by designating a mark in the screw member position display area, or any other input method can be set as appropriate.

[0080] When a screw member 30 is specified, the screw member 30 is displayed in the specified member display area in the upper left of the screen, showing its actual installation orientation and installation posture, as shown in Fig. 15. That is, the screw member 30 is displayed in its actual installation orientation corresponding to the orientation shown in the display area. Therefore, it is possible to visually confirm the installation orientation and installation posture of the specified screw member 30 in relation to the orientation of the pylon displayed in the mapping image. Of course, it goes without saying that even while the specified screw member 30 is being displayed, it may be possible to switch to a screen that displays the pylon without the background image, as shown in Fig. 16. [Explanation of symbols]

[0081] 1...Structure status display system, 10...building, 12...support, 14...beam, 30...screw member, 32...head, 34...shaft, 36...head cap, 40...electrical path arrangement portion, 42...fitting portion, 44...engaging groove, 45...axial guide portion, 46...circumferential guide portion, 50...cylindrical portion, 50a...reduced portion, 52...screw portion, 54...sensor arrangement portion, 60...terminal, 62...sensor pattern, 64...electrical path, 100...monitoring device, 110...board, 112...CPU, 114...RAM, 116...ROM, 118...EPROM, 120...interface, 122...antenna, 124...resistance value detection portion, 126...acceleration sensor.

Claims

[Claim 1] a measuring means disposed in the structure and configured to measure a physical quantity related to the structure; acquisition means for acquiring measurement information measured by the measurement means; a creating means for applying a virtual physical quantity corresponding to the measurement information to a design model including the structure, and creating a virtual model including information indicating the virtual physical quantity; a display control means for displaying the virtual model created by the creation means on a display means by color-coding a range in which the virtual physical quantity exceeds a predetermined value; A structure status display system comprising:

Images