Impermeable sheet installation inspection management method and management device therefor

Abstract

To provide a method for conveniently recording, managing, and utilizing inspection information on joints of an impermeable sheet while accurately identifying positions of workers even when signals from artificial satellites for position information acquisition are unobtainable, and a management device therefor.SOLUTION: A management method for inspecting laying of an impermeable sheet 103 includes an arithmetic device 12 executing, on the basis of the shapes of tags 31-37 included in images 5 captured by cameras 11A-11D capable of imaging tags 31-37 bearing two-dimensional codes and installed at a waste disposal site 100 where the impermeable sheet 103 is laid: a step for calculating position information of a worker relative to a position where tags 31-37 in images 5 captured by the cameras 11A-11D are installed; a step for inputting inspection information related to the content of inspection on the impermeable sheet 103 using an input device 43; and a step for associating the position information with the inspection information using the arithmetic device 12 and recording the same in a memory 42.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a method and a management device for simply recording, managing, and utilizing inspection information on joints of waterproof sheets, etc. [Background technology]

[0002] Waterproof sheets are laid on the bottoms and slopes of reservoirs and waste disposal sites to prevent water from leaking outside. Since it is difficult to cover an entire vast reservoir or waste disposal site with a single waterproof sheet, multiple waterproof sheets are usually laid side by side. The ends of each waterproof sheet are overlapped and joined together to ensure waterproof performance. Examples of methods for joining each waterproof sheet include joining with an adhesive or heat fusion (welding), in which sheets are softened by heating and then pressed together. To reliably prevent water leakage from the waterproof sheets, it is necessary to inspect whether the joints are properly joined.

[0003] In this regard, with regard to the joining of waterproof sheets and the management of inspection information, Patent Document 1 discloses a sheet construction management system that includes a sheet welding machine that moves along the overlap of the waterproof sheet while welding the overlap, and stores position information obtained by a GPS receiving unit and the welding information at that position as monitor information.

[0004] Moreover, Patent Document 2 discloses an inspection information creation support system in which a mobile station equipped with a first GNSS antenna and a reference station equipped with a second GNSS antenna are connected to a network.

[0005] Patent document 3 discloses a welding construction management system that includes a data acquisition unit that acquires welding construction management data and a location information acquisition unit that acquires location information of the acquisition location of the welding construction management data from GPS radio waves. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2018-43205 A [Patent Document 2] JP 2019-125253 A [Patent Document 3] JP 2023-32676 A Summary of the Invention [Problem to be solved by the invention]

[0007] The above Patent Documents 1 to 3 are all characterized in that they obtain location information based on signals from artificial satellites for obtaining location information, such as GPS and GNSS. However, it can be difficult to exchange signals with satellites, for example, indoors (under a roof) or in the mountains. In such situations, it can be impossible to accurately grasp location information (the location of the worker), which can cause problems in managing inspection information.

[0008] Therefore, the object of the present invention is to provide a method and a management device for easily recording, managing, and utilizing inspection information such as that of waterproof sheet joints, while accurately identifying the worker's position even when a signal from a satellite for acquiring position information cannot be obtained. [Means for solving the problem]

[0009] The present invention includes the steps of: calculating, based on the shape of the two-dimensional code displayed on the tag in an image acquired by an image acquisition device capable of acquiring an image of a tag that is installed in a specified area where a waterproof sheet is installed and that displays a predetermined matrix-type two-dimensional code including identification information, or the shape of the tag, relative position information of the image acquisition device that acquired the image of the tag with respect to the position where the tag is installed in the image acquired by the image acquisition device; A step of inputting construction inspection information regarding the inspection content of the waterproof sheet by an input device; The method for managing the construction inspection of waterproof sheets includes a step in which the computing device associates the location information with the construction inspection information and records them in a storage device.

[0010] According to the above method, based on the shape of a predetermined matrix-type two-dimensional code containing identification information displayed on a tag installed in a specified area where a waterproof sheet is installed or the shape of the tag, relative position information of the image acquisition device (the worker holding the image acquisition device) with respect to the position where the tag is installed can be calculated, and this position information can be associated with the construction inspection information of the waterproof sheet inputted by the input device, and recorded and managed in a storage device. This makes it possible to accurately pinpoint the location of workers even when location information cannot be obtained via GPS, while easily recording and managing construction inspection information such as the joints of waterproof sheets.

[0011] The present invention also provides a method for managing the construction inspection of the waterproof sheet, comprising: the storage device stores map information associated with a position of the tag in the specified area; Correlating the position information of the image capture device calculated by the arithmetic unit with the map information; a step of associating the location information associated with the map information with the construction inspection information and recording the information in the storage device; The method may further include a step of displaying, on a display device, the location information associated with the construction inspection information, which is associated with the map information.

[0012] According to the above method, location information associated with construction inspection information can be displayed on map information showing a specified area in which a waterproof sheet is installed. This makes it easier for workers to grasp location information associated with construction inspection information for the specified area in which the waterproof sheet is installed.

[0013] The present invention also provides a method for managing the construction inspection of the waterproof sheet, comprising: The method may include a step of making the location information associated with the map information displayed on the display device selectable, and when the location information is selected, displaying the construction inspection information associated with the location information.

[0014] According to the above method, by selecting location information associated with map information, a worker can easily access construction inspection information for the waterproof sheet associated with the selected location information.

[0015] The present invention also provides a method for managing the construction inspection of the waterproof sheet, comprising: The method may include a step of displaying inspection results included in the construction inspection information associated with the location information displayed on the display device, the location information corresponding to the map information.

[0016] According to the above method, the inspection results contained in the waterproof sheet construction inspection information are displayed in location information associated with map information, allowing the worker (repair person) to easily understand whether reinspection or repair work is necessary.

[0017] The present invention also provides a method for managing the construction inspection of the waterproof sheet, comprising: A step of inputting a position to be inspected in the specified area into the map information as inspection object position information; acquiring an image of the two-dimensional code displayed on the tag by the image acquisition device, and calculating current position information of the image acquisition device relative to a position where the tag is installed in the acquired image; The method may further include a step of displaying, on the display device, a positional relationship between the input inspection object position information and the current position information as the map information.

[0018] According to the above method, by inputting the location information of the object to be inspected in advance as the inspection target location information into the map information corresponding to the specified area in which the waterproof sheet is installed, the positional relationship between the inspection target location information (the location information to be inspected) and the current location information of the image acquisition device (the worker's current location) can be displayed on the map information on the display device. This allows, for example, the positional relationship between the positional information of the object to be inspected and the current position of the worker to be clarified in advance, thereby making it possible to efficiently identify the areas requiring inspection.

[0019] The present invention also provides a method for managing the construction inspection of the waterproof sheet, comprising: making the location information displayed on the display device and associated with the map information selectable as inspection target location information, and when the inspection target location information is selected, acquiring an image of the two-dimensional code displayed on the tag by the image acquisition device, and calculating current location information of the image acquisition device relative to a location where the tag is installed in the acquired image; The method may further include a step of displaying, on the display device, a positional relationship between the selected inspection object position information and the current position information as the map information.

[0020] According to the above method, the display device can display the positional relationship between the selected location information associated with the waterproof sheet construction inspection information and the current location information of the image acquisition device (the worker's current location) on map information corresponding to the specified area in which the waterproof sheet is installed. This clarifies the positional relationship between the location information selected as an area requiring inspection and the worker's current location, for example, and can make the task of identifying areas requiring inspection more efficient.

[0021] The present invention also provides an image acquisition device capable of acquiring an image of a tag that displays a predetermined matrix-type two-dimensional code including identification information and is installed in a specified area where a waterproof sheet is installed; An input device for inputting construction inspection information regarding the inspection content of the waterproof sheet; A computing device; Equipped with The computing device includes: This is a management device for the construction inspection of waterproof sheets, which performs a process of calculating relative position information of the image acquisition device that acquired the image of the tag with respect to the position where the tag is installed in the image acquired by the image acquisition device based on the shape of the two-dimensional code displayed on the tag in the image acquired by the image acquisition device or the shape of the tag, and a process of associating the position information with the construction inspection information and recording it in a storage device.

[0022] The present invention also provides a management device for inspecting the construction of a waterproof sheet, comprising: the management device is connectable to the display device; the storage device stores map information associated with a position of the tag in the specified area; The computing device includes: A process of associating the position information of the image acquisition device calculated by the arithmetic unit with the map information; a process of associating the location information associated with the map information with the construction inspection information and recording the information in the storage device; A process may be executed to display, on the display device, the location information associated with the construction inspection information, which is associated with the map information.

[0023] The present invention also provides a management device for inspecting the construction of a waterproof sheet, comprising: The computing device includes: The location information associated with the map information displayed on the display device may be made selectable, and when the location information is selected, a process may be executed to display the construction inspection information associated with the location information.

[0024] The present invention also provides a management device for inspecting the construction of a waterproof sheet, comprising: The computing device includes: A process may be executed in which the inspection results included in the construction inspection information associated with the location information displayed on the display device and associated with the map information are displayed on the display device.

[0025] The present invention also provides a management device for inspecting the construction of a waterproof sheet, comprising: The computing device includes: A process of inputting a position to be inspected in the specified area into the map information as inspection target position information; A process of acquiring an image of the two-dimensional code displayed on the tag by the image acquisition device, and calculating current position information of the image acquisition device relative to a position where the tag is installed in the acquired image; A process may be executed in which a positional relationship between the input inspection object position information and the current position information is displayed on the display device as the map information.

[0026] The present invention also provides a management device for inspecting the construction of a waterproof sheet, comprising: The computing device includes: a process of making the location information associated with the map information displayed on the display device selectable as inspection target location information, and when the inspection target location information is selected, acquiring an image of the two-dimensional code displayed on the tag by the image acquisition device, and calculating current location information of the image acquisition device relative to a location where the tag is installed in the acquired image; A process may be executed in which a positional relationship between the selected inspection object position information and the current position information is displayed on the display device as the map information. Effect of the Invention

[0027] According to the present invention, it is possible to provide a method and a management device for easily recording, managing, and utilizing inspection information such as that of waterproof sheet joints, while accurately identifying the location of a worker even when a signal from a satellite for acquiring location information cannot be obtained. [Brief description of the drawings]

[0028] [Figure 1] This is an overview of how TagSLAM is used to manage the construction inspection of waterproof sheets. [Diagram 2]1 is a block diagram of a construction inspection management device and a tablet according to an embodiment of the present invention. [Diagram 3] 1 is an explanatory diagram of an image of a tag including a two-dimensional code captured by a camera. [Figure 4] FIG. 2 is an explanatory diagram of map information associated with the positions of tags in a waste disposal site according to the embodiment. [Diagram 5] FIG. 13 is an explanatory diagram of test information for a pressurized test displayed on a display. [Figure 6] FIG. 11 is an explanatory diagram of a manner in which a worker is guided to an inspection target using map information displayed on a display. [Figure 7] 1(1) is an explanatory diagram of double seam fusion at a joint of a waterproof sheet, and (2) is an explanatory diagram of extrusion fusion at a joint of a waterproof sheet. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] In this embodiment, a method for managing the construction inspection of a waterproof sheet according to the present invention will be described as a method for managing the construction inspection of a waterproof sheet 103 installed at a waste disposal site 100. A construction inspection management device 1 used in the method for managing the construction inspection of the waterproof sheet 103 will also be described.

[0030] (Waste disposal site 100) A plurality of waterproof sheets 103 are laid side by side on the bottom surface 101 and slopes 102 of a waste disposal site 100 (prescribed area) to prevent water from leaking to the outside (see FIG. 4). In this embodiment, to prevent damage to the waterproof sheets 103, a protective sheet 105 (not shown) may be laid on one or both sides of the waterproof sheets 103, and a covering layer of soil of about several centimeters may be piled on the outermost surface.

[0031] (Waterproof sheet 103) Materials constituting the waterproof sheet 103 include vulcanized rubber, thermoplastic elastomer, polyethylene resin, ethylene vinyl acetate resin, and polyvinyl chloride resin, with polyethylene resin and vulcanized rubber (particularly EPDM) being preferred, which have high strength and excellent weather resistance. The waterproof sheet 103 may have a reinforcing material such as a net made of polyester thread embedded therein. The thickness of the waterproof sheet 103 is preferably in the range of 1.0 mm to 2.5 mm. This is because if the thickness of the waterproof sheet 103 is less than 1.0 mm, the strength may be insufficient, while if the thickness exceeds 2.5 mm, the weight increases, making installation difficult and increasing costs.

[0032] (Protective sheet 105) In the waste disposal site 100 of this embodiment, a protective sheet 105 may be laid on the bottom surface 101 or the slope surface 102 to prevent damage to the waterproof sheet 103. Examples of materials constituting the protective sheet 105 include polyester long fiber nonwoven fabric, polyester short fiber nonwoven fabric, or a single or composite material such as natural fiber, synthetic fiber, or synthetic resin. A polyester long fiber nonwoven fabric or polyester short fiber nonwoven fabric having the same high strength and weather resistance as the waterproof sheet 103 is preferable. The thickness of the protective sheet 105 is preferably 4.0 mm or more. In the waste disposal site 100, a two-layer structure of the waterproof sheet 103 and the protective sheet 105, or a three-layer structure in which the waterproof sheet 103 is protected on both sides by laying the protective sheet 105, the waterproof sheet 103, and the protective sheet 105 in this order is generally used, but the number of the waterproof sheet 103 and the protective sheet 105 is not particularly limited, and the waterproof sheet 103 and the protective sheet 105 may be overlapped in a plurality of layers.

[0033] (Joining of waterproof sheets 103) The waterproof sheets 103 are laid out with their ends overlapping by about 10 cm, and the overlapping portions are joined by heat fusion, extrusion fusion, adhesives, or the like. In the case of joining by heat fusion, a self-propelled heat fusion machine is used to heat and melt the overlapping portions of two waterproof sheets 103 while applying pressure to join them. As shown in Fig. 7(1), the joint 104 is formed by forming two rows of joining lines 104A and 104B including an unfused portion in the center (double seam fusion). In extrusion fusion joining, as shown in Figure 7 (2), the waterproof sheets 103 are temporarily fused together using a handheld hot air fusion machine, and then the sheets are joined by extruding a molten material of the same material as the waterproof sheets 103 using the extrusion fusion machine to build up the material. In adhesive bonding, adhesive is applied to the opposing surfaces of overlapping portions of waterproof sheets 103. In particular, bonding with a self-propelled heat fusion machine is difficult in areas where three or more waterproof sheets 103 overlap or on slopes 102, so extrusion fusion or bonding with an adhesive is used.

[0034] (Inspection of joint 104 of waterproof sheet 103) Inspections of the joints 104 of the waterproof sheet 103 include pressure testing, negative pressure testing, and spark testing.

[0035] The pressurization test is applied to inspect the heat-sealed portion of the joint 104, and is performed on the joint lines 104A and 104B of the waterproof sheet 103. Air is injected into the two rows of joint lines 104A and 104B formed by heat fusion to apply pressure, and joint defects are detected from the change in pressure after a certain period of time. For example, if the pressure drop is within 20% 30 seconds after pressurization, it is judged as passing, and if the pressure drop exceeds 20%, it is judged as failing.

[0036] Negative pressure testing is a spot test performed on manually joined parts 104, such as parts joined with extrusion fusion or adhesive, or on parts that have been patched for repair. After applying soapy water or the like to the part to be tested, a clear case is placed over it to create negative pressure inside the case. If there is an air leak, soap bubbles will be generated, allowing the detection of an abnormality.

[0037] The spark test is an inspection performed on the entire waterproof sheet 103 to find pinholes, which are defects in the waterproof sheet 103 itself, as well as poor connections. When the surface of the waterproof sheet 103 is traced with a brush electrode to which a high voltage is applied, insulation is broken in areas with pinholes or poor connections, generating sparks, making it possible to find pinholes or poor connections.

[0038] Here, in the pressurized and negative pressure tests, an inspector is required to perform the inspection at the joint 104 (specific location) and record the exact location information at the waste disposal site 100 in association with the inspection information obtained by the inspector. In addition, in spark inspection, the inspector's location information is constantly recorded so that the exact trajectory of the location where the inspection was conducted at the waste disposal site 100 is recorded, and if a spark occurs, it is recorded as abnormality information.

[0039] (Construction inspection management device 1) The construction inspection management device 1 uses TagSLAM to accurately identify the location of workers even in environments where GPS signals cannot be received, such as indoors or in the mountains, and can input inspection work records of joints 104 of waterproof sheet 103, etc. into tablet 4, thereby linking and recording the inspection time, location, results, etc.

[0040] TagSLAM is a positioning method (SLAM: Simultaneous Localization and Mapping) that uses a tag 30 (Tag) that displays a predetermined matrix-type two-dimensional code including identification information (such as an individual number) as shown in Fig. 1. For example, as shown in Fig. 4, multiple tags 31-37 (or just one tag) are installed in advance at predetermined positions in a waste disposal site 100, and the position of a worker (construction inspection management device 1 (cameras 11A-11D)) is identified based on the shapes (size, inclination, etc.) of the tags 31-37 in images captured by cameras 11A-11D (described later) of the construction inspection management device 1.

[0041] Examples of the two-dimensional code displayed on the tag 30 (Tag) include QR Code (registered trademark), AprilTag, ARTag, CCTag, and ChromaTag, but in this embodiment, AprilTag is used.

[0042] As shown in FIG. 1, a construction inspection management device 1 of this embodiment is attached to a helmet 2 worn by a worker. As shown in FIG. 2, the construction inspection management device 1 includes four cameras 11A to 11D (image acquisition devices), a computing device 12, a memory card 13 (storage device), a battery 14, and a communication device 15, which are connected via a USB HUB or the like. In addition, the construction inspection management device 1 can be connected to a tablet 4 via a communication device 15.

[0043] Cameras 11A to 11D are camera modules capable of acquiring images, and are capable of capturing images of the area in front of and around the worker. The number of cameras 11 is not particularly limited, and may be less than four or five or more. The locations at which cameras 11 are installed in construction inspection management device 1 are not particularly limited, and may be arranged so as to capture images of the area around the worker at 360°, or so as to capture images above the worker, or so as to match the field of view of the worker.

[0044] The calculation device 12 is a single-board computer, and calculates relative position information (worker's position information) of the construction inspection management device 1 (cameras 11A to 11D) that captured the image 5 of the tag 30, relative to the position where the tag 30 is installed, based on the shape (size, tilt, etc.) of the tag 30 contained in the image 5 (see Figure 3) captured by the cameras 11A to 11D or the shape of the two-dimensional code displayed on the tag 30.

[0045] The memory card 13 stores an OS, a library, and the like for operating the cameras 11A to 11D and the arithmetic unit 12.

[0046] The battery 14 is a rechargeable battery that supplies the power necessary to drive each device that constitutes the construction inspection management device 1.

[0047] The communication device 15 is a communication device capable of wireless communication with the tablet 4, an external personal computer, and the like.

[0048] (Tablet 4) The tablet 4 is a general-purpose thin personal computer, and includes a CPU 41, a memory 42 for storing various information, an input device 43 such as a touch panel, a display 44 (display device), and the like.

[0049] The memory 42 stores map information 50 that associates the positions of the tags 31 to 37 in the waste disposal site 100 (prescribed area), as shown in FIG.

[0050] The input device 43 allows the input of construction inspection information (information indicating that the position is to be inspected, required inspection items, inspection results, etc.; details will be described later) regarding pressure inspection, negative pressure inspection, and spark inspection of the waterproof sheet 103.

[0051] The display 44 is capable of displaying map information 50 in which the positions of the tags 31 to 37 in the waste disposal site 100 (prescribed area) are associated, and the like.

[0052] Note that the tablet 4 may be any terminal (e.g., wireless communication device, laptop computer, smartphone, smart glasses, wearable terminal such as a smart watch, etc.) that has a display on which the worker can visually recognize various information and is capable of communicating with the construction inspection management device 1. Also, in this embodiment, the construction inspection management device 1 and the tablet 4 are implemented by different devices, but the function of the tablet 4 may be provided in the construction inspection management device 1 itself.

[0053] (Method of use and processing of the construction inspection management device 1) Next, a method of using the construction inspection management device 1 and its processing operations will be described.

[0054] <Installation of tags 31 to 37 at waste disposal site 100> The tags 31 to 37 are placed at predetermined positions in the actual waste disposal site 100. Then, the position information of the tags 31 to 37 is associated with the map information 50 and stored in the memory . In this embodiment, the tags 31 to 37 are installed at the waste disposal site 100 at the height of a person's face when standing, but this is not limited to this and they are installed on the floor, ceiling, pillars, walls, etc. if the environment is indoors, or on trees, rocks, signs, etc. in the mountains so that they do not move.

[0055] The cameras 11A to 11D of the construction inspection management device 1 are capable of reading the individual numbers (identification information) from the two-dimensional codes of the tags 31 to 37 (the tag 31 has the individual number 1, the tag 32 has the individual number 2, etc.). At this time, a data table in which each individual number is associated with the position information of each tag 31-37 in the waste disposal site 100 is created in advance and stored in the memory 42 of the tablet 4. Note that in the data table, information such as the shape, size, and orientation of each tag 31-37 may also be associated with each individual number.

[0056] <Input of inspection target location information> The positions of the joints 104 of the waterproof sheet 103 are input and stored in advance in the map information 50 displayed on the display 44 of the tablet 4, which corresponds to the positions of the tags 31 to 37 in the waste disposal site 100 (specified area) (see Figure 4).

[0057] Then, the worker (manager) uses an input device 43 such as a touch panel to input the location to be inspected by the pressurized inspection as a white circle mark 71 (waiting for pressurized inspection) indicating the location information to be inspected by the pressurized inspection, and associates it with the map information 50 and stores it (see Figure 4). Similarly, the operator uses an input device 43 such as a touch panel to input and store the location to be inspected for the negative pressure inspection in association with the map information 50 as a white diamond mark 81 indicating the location information of the negative pressure inspection target (waiting for negative pressure inspection) (see Figure 4). As a result, on the map information 50 showing a floor plan of the waste disposal site 100 displayed on the display 44 of the tablet 4, the locations to be inspected for the pressurized test are displayed as white circle marks 71 (waiting for pressurized test), and the locations to be inspected for the negative pressure test are displayed as white diamond marks 81 (waiting for negative pressure test). In addition, in the construction inspection management device 1, the contents explained in the section on inputting the inspection target position information are not essential components but are additional elements.

[0058] <Guiding workers to the inspection target> First, the worker (inspector) selects a position to be inspected in the map information 50 displayed on the display 44 of the tablet 4 (selection of inspection target position information). For example, as shown in FIG. 6, a white circle 71 (waiting for pressurized inspection) shown on the map information 50 is selected.

[0059] When the white circle mark 71 (waiting for pressurized inspection) is selected, the calculation device 12 identifies the worker's current location 60 based on the shapes of the tags 31-37 contained in the images captured by the cameras 11A-11D of the construction inspection management device 1 attached to the worker's helmet 2, transmits this to the tablet 4, and displays it on the map information 50 on the display 44.

[0060] For example, as shown in Fig. 3, when a worker (inspector) enters a waste disposal site 100, the camera 11A of the construction inspection management device 1 captures an image 5 of the two-dimensional code displayed on the tag 31. Then, the computing device 12 acquires the individual number of the tag 31 from the two-dimensional code itself displayed on the tag 31 contained in the captured image 5. By acquiring the individual number of the tag 31, the computing device 12 can refer to the data table in the memory 42 to acquire position information of the tag 31 in the waste disposal site 100, and information on the actual shape, size, and orientation of the tag 31.

[0061] Furthermore, the calculation device 12 compares information on the actual shape and size of the tag 31 obtained by referring to the data table with information on the apparent shape (size, tilt) of the tag 31 contained in the captured image 5, and calculates the distance and direction between the camera 11A and the tag 31, and the angle (yaw and pitch) of the camera 11A relative to the tag 31, from information such as the size ratio and degree of tilt. Then, once the distance and direction between camera 11A and tag 31, and the angle (yaw and pitch) of camera 11A relative to tag 31 have been calculated, it is possible to calculate the relative position information of camera 11A (worker) that captured image 5 of tag 31 with respect to the position where tag 31 is installed in image 5 taken by camera 11A, based on the position information of tag 31 at the waste disposal site 100 obtained by referring to the data table. That is, as shown in FIG. 6, the current position 60 of the worker can be displayed on map information 50 showing a plan view of the waste disposal site 100 displayed on the display 44 of the tablet 4.

[0062] In the above description, the current position 60 of the worker is identified based on the image 5 captured by the camera 11A, but the other cameras 11B to 11D perform similar processing. In this embodiment, for example, the camera 11B captures an image including a tag 36 different from the tag 31, the camera 11C captures an image including the tag 35, and the camera 11D captures an image including the tag 33, and the relative position information of the tags 36, 35, and 33 and the cameras 11B to 11D is calculated. Then, the current position 60 of the worker is identified more accurately by correcting the relative position information of the tags 31, 36, 35, and 33 and the cameras 11A to 11D.

[0063] Furthermore, when a worker moves, the target of tags 31-37 being imaged by cameras 11A-11D and the shape (size, inclination) of tags 31-37 will change, but the relative position information of tags 31-37 and cameras 11A-11D can be calculated sequentially, and the worker's current position 60 can be identified in real time.

[0064] Next, as shown in FIG. 6, the positional relationship between the selected white circle mark 71 (waiting for pressurized inspection) and the current position 60 is displayed on the map information 50 as a sector-shaped direction mark 61 indicating the direction from the current position 60 to the selected white circle mark 71. This clarifies the positional relationship between the worker's current position 60 and the selected white circle mark 71 (waiting for pressurized inspection), allowing the worker to easily reach the location to be inspected (making it more efficient to identify the location requiring inspection). In addition, in the construction inspection management device 1, the contents explained in the section on guiding the worker to the inspection target are not essential components but are additional elements.

[0065] <Input of construction inspection information related to pressure testing, negative pressure testing, and spark testing> Next, a method for inputting construction inspection information regarding the pressure test, negative pressure test, and spark test for the waterproof sheet 103 using the input device 43 will be described.

[0066] For example, when a worker (inspector) reaches the selected white circle mark 71 (waiting for pressurized inspection) and performs a pressurized inspection, the location information of the current location 60 in the map information 50 (waste disposal site 100) (location information of the inspected white circle mark 71) and the inspection information inspected by the worker (construction inspection information) are recorded in correspondence with each other.

[0067] Specifically, as shown in FIG. 5, in the case of a pressurized inspection, the inspection information (construction inspection information) such as the inspection date, inspection time, initial air pressure, measured air pressure, standard value (pressure change), pass / fail information, and inspector name are entered via input device 43 and stored in memory 42 in association with position information (position information of inspected white circle mark 71) of current position 60 in map information 50 (waste disposal site 100).

[0068] In this embodiment, after the pressure test is performed, if the pressure test result is pass, a diagonal line circle 72 is displayed, and if the pressure test result is fail, a black circle 73 is displayed (see FIG. 6). That is, the hatched circle 72 and the black circle 73 (position information) associated with the pressure inspection result (construction inspection information) which are associated with the map information 50 can be displayed on the display 44 of the tablet 4. This makes it easier for workers (repair personnel) to grasp the location information associated with the results of the pressure test at the waste disposal site 100 where the waterproof sheet 103 is installed. In addition, the location information associated with the map information 50 displays the results of the pressure test (pass (normal) or fail (abnormal)) included in the construction inspection information of the waterproof sheet 103, so the worker (repair person) can easily understand whether reinspection or repair work is necessary.

[0069] Similarly, when an operator performs a negative pressure inspection, the position information of the current position 60 in the map information 50 (waste disposal site 100) (position information of the inspected white diamond mark 81) is associated with the inspection information inspected by the operator (construction inspection information) and recorded in memory 42.

[0070] In this embodiment, after the negative pressure test is performed, if the negative pressure test result is pass, a diagonal lined diamond mark 82 is displayed, and if the negative pressure test result is fail, a black diamond mark 83 is displayed (see FIG. 6). That is, the hatched diamond mark 82 and the black diamond mark 83 (location information) associated with the negative pressure inspection result (construction inspection information) which are associated with the map information 50 can be displayed on the display 44 of the tablet 4 . This makes it easier for workers (repair personnel) to grasp the location information associated with the negative pressure test results at the waste disposal site 100 where the waterproof sheet 103 is installed. In addition, the location information associated with the map information 50 displays the negative pressure test result (pass (normal) or fail (abnormal)) included in the construction inspection information of the waterproof sheet 103, so the worker (repair person) can easily understand whether reinspection or repair work is necessary.

[0071] In the spark inspection, the construction inspection management device 1 calculates the relative position information of the tags 31-37 and the cameras 11A-11D, respectively, and can identify the worker's current position 60 in real time, so that if the worker moves while performing a spark inspection on the waterproof sheet 103, the current position 60 of the moving worker is continuously recorded as position information, and the trajectory of the position information where the spark inspection was performed in the map information 50 (waste disposal site 100) is recorded, and if a spark occurs, it is recorded as abnormal information. Specifically, as shown in Fig. 6, if the result of the spark inspection is normal, a light x mark 92 is displayed on the map information 50, and if the result of the spark inspection is abnormal, a dark x mark 93 is displayed on the map information 50. As a result, the spark inspection result (pass (normal) or fail (abnormal)) contained in the construction inspection information of the waterproof sheet 103 is displayed in the location information associated with the map information 50, allowing the worker (repair person) to easily understand whether reinspection or repair work is necessary.

[0072] <View construction inspection information regarding pressure testing, negative pressure testing, and spark testing> A worker (such as a manager, inspector, or repair technician) can select from among the diagonal line circle 72 and black circle 73 (location information) associated with the pressurized test results and corresponding to the map information 50 displayed on the display 44 of the tablet 4, the diagonal line diamond 82 and black diamond 83 (location information) associated with the negative pressure test results and corresponding to the map information 50, or the light x 92 and dark x 93 (location information) associated with the spark test results and corresponding to the map information 50, and when any of these is selected, the construction inspection information associated with the selected location information is displayed on the display 44.

[0073] For example, when the lined circle 72 associated with the pressurized test result is selected as shown in FIG. 4, the test information of the pressurized test associated with the selected lined circle 72 (test date, test time, initial air pressure, measured air pressure, standard value (pressure change), pass / fail information), the name of the examiner, etc. are displayed on the display 44 as shown in FIG. 5. This allows workers (managers, inspectors, repair technicians, etc.) to easily access construction inspection information for the waterproof sheet 103 associated with the selected location information by selecting location information associated with the map information 50.

[0074] For each test item (pressure test, negative pressure test, spark test), the information can be switched between visible and hidden, so that, for example, only the pressure test results can be displayed. Similarly, each piece of test information (test date, test time, initial air pressure, measured air pressure, standard value (pressure change), pass / fail information) can be switched between visible and hidden. In addition, to improve visibility on the display 44 of the tablet 4, the location information associated with the map information 50 may be displayed or hidden, or may be displayed in a different color so as to be distinguishable from other location information or specific locations (other display items).

[0075] According to the above-mentioned construction inspection management device 1 and method, the relative position information of the camera 11 (the worker holding the construction inspection management device 1) to the positions where the tags 31-37 are installed can be calculated based on the matrix-type two-dimensional codes containing individual number information displayed on the tags 31-37 installed at the waste disposal site 100 where the waterproof sheet 103 is installed, and the shapes of the tags 31-37, and this position information can be associated with the input inspection information of the waterproof sheet 103, recorded in the memory 42, and managed. This makes it possible to accurately identify the worker's location even when location information cannot be obtained by GPS, while easily recording and managing inspection information such as that of the joints 104 of the waterproof sheet 103.

[0076] (Processing Operation of the Construction Inspection Management Device 1: Modified Example of Input of Inspection Target Position Information) In the above embodiment, in the "input of inspection target position information", an operator (manager) uses an input device 43 such as a touch panel to specify a position to be inspected in the pressurized inspection, and inputs and stores the position information in the map information 50 in direct correspondence with a white circle mark 71 indicating the position information of the object to be inspected in the pressurized inspection (waiting for pressurized inspection). However, the input method is not limited to this. An operator (manager) can stand at a position at the actual waste disposal site 100 that is to be the target of the pressurized inspection, identify the current position 60 of the operator using the function of the construction inspection management device 1 described in "Guiding the operator to the target of inspection", and store the identified current position 60 in correspondence with the map information 50 as a white circle mark 71 (waiting for pressurized inspection) indicating the target position information for the pressurized inspection (see Figure 4). Similarly, a worker (manager) can stand at a position that he or she wishes to inspect for a negative pressure test in the actual waste disposal site 100, and use the function of the construction inspection management device 1 described in "Guiding workers to the inspection target" to identify the worker's current location 60, and store the identified current location 60 in association with the map information 50 as a white diamond mark 81 (waiting for negative pressure inspection) indicating the location information of the negative pressure inspection target (see Figure 4).

[0077] (Other embodiments) (1) In the above embodiment, the construction inspection management device 1 is a measurement unit independent of the tablet 4, but cameras mounted on a mobile terminal such as a notebook computer, tablet, or smartphone may also be used as the cameras 11A-11D of the construction inspection management device 1. Furthermore, the functions of the construction inspection management device 1 and the tablet 4 may be independently performed by a mobile terminal such as a notebook computer, tablet, or smartphone.

[0078] (2) In the above embodiment, for example, the inspection information (construction inspection information) of the pressurized inspection is associated with the location information (location information of the inspected white circle mark 71) of the current location 60 in the map information 50 (waste disposal site 100) and stored in the memory 42, but it may also be transmitted to the memory card 13 of the construction inspection management device 1 or an external server (including a cloud server) and recorded. In places where radio waves cannot reach, such as in the mountains, the data can first be recorded in the memory 42 of the tablet 4 or in a browser (assuming a web application that runs on a browser and can be used offline on the tablet 4, etc.), and then transmitted after moving to a place where radio waves can be received, or the data can be transferred to a server via a storage medium such as a memory card.

[0079] (3) The inspection information associated with the location information of the map information 50 may include photographs taken by the camera equipped in the tablet 4 (photographs showing the condition of the joints 104 of the waterproof sheet 103, and photographs taken during the inspection as evidence that the inspection was carried out properly). In addition, when inputting examination information, the examination date and examination time may be automatically obtained from time information stored in the tablet.

[0080] (4) In the above embodiment, the relative position information of the worker is calculated based on the shape of the tags 31-37 included in the image 5, with respect to the positions where the tags 31-37 are placed in the image 5 taken by the cameras 11A-11D. However, the relative position information of the worker may be calculated based on the shape of the two-dimensional code displayed on the tags 31-37 included in the image 5, with respect to the positions where the tags 31-37 are placed in the image 5 taken by the cameras 11A-11D.

[0081] (5) Regarding the “installation of tags 31-37 at the waste disposal site 100” in the above embodiment, tag 31 may be installed at a predetermined position at the actual waste disposal site 100, and the position of this tag 31 may be used as the origin of the position information in the map information 50 to install other tags 32-37. For example, the position of the tag 31 is stored as the origin of the position information in the map information 50 . When tag 32 is placed at a position away from tag 31, an image is taken with the camera of tablet 4 so that tags 31 and 32 appear in the same image, and based on information on the actual shapes and sizes of tags 31 and 32 obtained by referring to a data table, the apparent shape (size, tilt) of tag 31 contained in the captured image is compared with the apparent shape of tag 32 to calculate the distance and direction between tags 31 and 32, the angle (yaw and pitch) of tag 32 relative to tag 31, etc. In this way, by calculating the distance and direction between tags 31 and 32, and the angle (yaw and pitch) of tag 32 relative to tag 31, the relative position information of tag 32 with respect to tag 31 can be calculated based on the position information (origin) of tag 31 at the waste disposal site 100, and the tag can be identified in map information 50. By carrying out the same process for the other tags 33 to 37, the position information of the tags 31 to 37 can be stored in the map information 50 in association with each other.

[0082] (6) When multiple pieces of position information are stored in the map information 50, the distance between pieces of position information may be calculated and displayed by the selection of the operator (manager). For example, when the start and end points of a double seam at both ends of the waterproof sheet in the longitudinal direction are stored as position information, the distance between the start and end points of the double seam can be calculated and displayed. [Explanation of symbols]

[0083] 1 Construction inspection management device 11A~11D Camera 12 Arithmetic unit 13. Memory Cards 14 Battery 15. Communications Equipment 2. Helmet 30 Tags 31~37 Tags 4 Tablet 41 CPU 42 Memory 43 Input Devices 44 Display 5 Images 50 Map Information 100 Waste disposal site 103 Waterproof sheet 104 Joint 105 Protective Sheet

Claims

1. A step in which a calculation device calculates relative position information of the image acquisition device that has acquired the image of the tag with respect to the position where the tag is installed in the image acquired by the image acquisition device, based on the shape of the two-dimensional code displayed on the tag in the image acquired by the image acquisition device capable of acquiring an image of the tag that is installed in a specified area where a waterproof sheet is installed and that displays a predetermined matrix-type two-dimensional code including identification information; A step of inputting construction inspection information regarding the inspection content of the waterproof sheet by an input device; A method for managing the construction inspection of waterproof sheets, comprising a step in which the computing device associates the location information with the construction inspection information and records them in a storage device.

2. the storage device stores map information associated with a position of the tag in the specified area; Correlating the position information of the image capture device calculated by the arithmetic unit with the map information; a step of associating the location information associated with the map information with the construction inspection information and recording the information in the storage device; A method for managing the construction inspection of waterproof sheets as described in claim 1, comprising a step of displaying on a display device the location information associated with the construction inspection information, which is made to correspond to the map information.

3. A method for managing the construction inspection of waterproof sheets as described in claim 2, comprising a step of making the location information associated with the map information displayed on the display device selectable, and when the location information is selected, displaying the construction inspection information associated with the location information.

4. A method for managing the construction inspection of waterproof sheets as described in claim 2, comprising a step of displaying the inspection results contained in the construction inspection information associated with the location information displayed on the display device, the location information corresponding to the map information.

5. A step of inputting a position to be inspected in the specified area into the map information as inspection object position information; acquiring an image of the two-dimensional code displayed on the tag by the image acquisition device, and calculating current position information of the image acquisition device relative to a position where the tag is installed in the acquired image; A method for managing the construction inspection of waterproof sheets as described in claim 2, further comprising a step of displaying on the display device the positional relationship between the input inspection target position information and the current position information as the map information.

6. making the location information displayed on the display device and associated with the map information selectable as inspection target location information, and when the inspection target location information is selected, acquiring an image of the two-dimensional code displayed on the tag by the image acquisition device, and calculating current location information of the image acquisition device relative to a location where the tag is installed in the acquired image; A method for managing the construction inspection of waterproof sheets as described in claim 2, further comprising a step of displaying on the display device the positional relationship between the selected inspection target position information and the current position information as the map information.

7. An image capture device capable of capturing an image of a tag displaying a predetermined matrix-type two-dimensional code including identification information, the image capture device being installed in a specified area where a waterproof sheet is installed; An input device for inputting construction inspection information regarding the inspection content of the waterproof sheet; A computing device; Equipped with The computing device includes: A management device for the inspection of waterproof sheets, which performs a process of calculating relative position information of the image acquisition device that acquired the image of the tag with respect to the position at which the tag is installed in the image acquired by the image acquisition device, based on the shape of the two-dimensional code displayed on the tag in the image acquired by the image acquisition device or the shape of the tag, and a process of associating the position information with the construction inspection information and recording it in a storage device.

8. the management device is connectable to the display device; the storage device stores map information associated with a position of the tag in the specified area; The computing device includes: A process of associating the position information of the image acquisition device calculated by the arithmetic unit with the map information; a process of associating the location information associated with the map information with the construction inspection information and recording the information in the storage device; The management device for waterproof sheet construction inspection according to claim 7 , further comprising a process for displaying, on the display device, the location information associated with the construction inspection information, which is associated with the map information.

9. The computing device includes: A management device for the construction inspection of waterproof sheets as described in claim 8, which makes it possible to select the location information associated with the map information displayed on the display device, and when the location information is selected, executes a process to display the construction inspection information associated with the location information.

10. The computing device includes: A management device for the construction inspection of waterproof sheets as described in claim 8, which executes a process of displaying the inspection results contained in the construction inspection information associated with the location information displayed on the display device, the location information corresponding to the map information.

11. The computing device includes: A process of inputting a position to be inspected in the specified area into the map information as inspection target position information; A process of acquiring an image of the two-dimensional code displayed on the tag by the image acquisition device, and calculating current position information of the image acquisition device relative to a position where the tag is installed in the acquired image; A management device for waterproof sheet construction inspection as described in claim 8, which executes a process of displaying the positional relationship between the input inspection target position information and the current position information as the map information on the display device.

12. The computing device includes: a process of making the location information associated with the map information displayed on the display device selectable as inspection target location information, and when the inspection target location information is selected, acquiring an image of the two-dimensional code displayed on the tag by the image acquisition device, and calculating current location information of the image acquisition device relative to a location where the tag is installed in the acquired image; A management device for waterproof sheet construction inspection as described in claim 8, which executes a process of displaying the positional relationship between the selected inspection target position information and the current position information as the map information on the display device.

Images