Exterior wall inspection video display device

Abstract

This invention provides a video display device for exterior wall inspections that allows for easy understanding of the results of the exterior wall inspection. [Solution] The exterior wall inspection video display device 10 includes a first display area 10a that displays a visible light video of the exterior wall of a building taken using a visible light camera mounted on a drone while the drone is moving, a second display area 10b that displays an infrared video of the exterior wall taken simultaneously with the visible light video using an infrared camera mounted on a drone, synchronized with the display of the visible light video, and a third display area 10c that displays a location display video indicating the part of the building where the displayed part of the exterior wall shown in the first display area and the second display area 10b is located.

Description

Technical Field

[0001] This specification discloses a technology related to an outer wall inspection video display device.

Background Art

[0002] Generally, it is known that the outer wall of a building may be damaged, such as so-called "lifting", due to aging deterioration or the like. If this is left unattended, there is a risk that the finish layer (e.g., tiles or mortar) may peel off or fall from the structure, so it is obligatory to conduct inspections (hereinafter referred to as "outer wall inspections") regularly (e.g., once every 10 years).

[0003] Conventionally, as a method for conducting such outer wall inspections, a tapping inspection in which the outer wall surface is tapped with a percussion instrument is widely known. However, with such a method, since it is necessary to install a gondola or a temporary scaffold, etc., not only does the cost increase, but there are also problems such as the safety of workers. Therefore, in recent years, in order to solve such problems, a technology for inspecting the outer wall using a drone has been proposed (see Patent Document 1).

[0004] The wall surface inspection device described in Patent Document 1 is composed of a drone equipped with a normal camera, an infrared camera, etc., and a device for analyzing the state of the outer wall surface based on the captured images, etc., recorded by the drone.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, with wall inspection devices like the one described in Patent Document 1, documenting the obtained analysis results in the form of an investigation report results in a very detailed and lengthy report (for example, a large number of pages). In such cases, clients who have requested an exterior wall inspection may not be able to fully understand the contents of the investigation results without specialized knowledge. [Means for solving the problem]

[0007] The technologies disclosed herein can be implemented in the following forms:

[0008] One embodiment disclosed herein includes: a first display area that displays a visible light video of the exterior wall of a building captured using a visible light camera mounted on a drone while the drone is moving; a second display area that displays an infrared video of the exterior wall captured simultaneously with the visible light video using an infrared camera mounted on the drone, synchronized with the display of the visible light video; and a third display area that displays a location display video indicating the location on the building where the displayed portion of the exterior wall shown in the first and second display areas is located. With this embodiment of the exterior wall inspection video display device, the visible light video and infrared video of the same portion of the exterior wall captured at the same time, and the location display video indicating the location on the building where the captured portion is located, are displayed in conjunction on a single screen, so that the results of the exterior wall inspection can be easily grasped at a glance. [Brief explanation of the drawing]

[0009] [Figure 1] This is a schematic diagram illustrating the process of acquiring a video recording that will be displayed on the exterior wall inspection video display device according to the present invention. [Figure 2] Figure 1 is an image showing an example of a video displayed on the exterior wall inspection video display device. [Figure 3] This figure shows an example of a survey report for comparison with a video displayed on an external inspection video display device. [Modes for carrying out the invention]

[0010] Figure 1 is an explanatory schematic diagram illustrating the process of acquiring a video to be displayed on the exterior wall inspection video display device 10 according to the present invention. In this embodiment, the exterior wall inspection video display device 10 is a device provided on the control device 1 (in this embodiment, a personal computer) and is configured to display a video of the exterior wall of a building S (hereinafter simply referred to as "exterior wall").

[0011] As shown in Figure 1, the captured video displayed on the exterior wall inspection video display device 10 is captured by flying the drone D along the exterior wall. The drone D according to this embodiment has a visible light camera Ca1 and an infrared camera Ca2, and is configured to simultaneously capture visible light video and infrared video while flying in a desired direction. Since the drone D itself is well known, a detailed explanation will be omitted, but in this embodiment as well, similar to known drones, it is possible to fly the drone while checking the aerial images captured by camera Ca on the display unit Od by operating the operating device O.

[0012] The visible light video and infrared video data captured in this manner are first stored in a storage medium such as an SD card (registered trademark) by the drone D, and then stored in the control device 1 using the said storage medium.

[0013] In this embodiment, the control device 1 is configured to edit the transmitted video data so that the video, as an output of the exterior wall inspection, can be displayed on the exterior wall inspection video display device 10, and to store the edited data. This makes it possible to display such a video on the exterior wall inspection video display device 10 at any time afterward, as shown in Figure 2.

[0014] As shown in Figure 2, the exterior wall inspection video display device 10 is configured to include a first display area 10a that displays a visible light video of the exterior wall of a building S, a second display area 10b that displays an infrared video captured simultaneously with the visible light video in synchronization with the display of the visible light video, and a third display area 10c that displays a location display video indicating the location in the building S where the displayed part of the exterior wall shown in the first display area 10a and the second display area 10b is located.

[0015] In other words, in this embodiment, the visible light video and infrared video captured simultaneously by flying the drone D are configured to be displayed side by side in the first display area 10a and the second display area 10b of the exterior wall inspection video display device 10, respectively. Therefore, even if no damaged area (hereinafter referred to as "abnormal area") is found on the exterior wall in the visible light video displayed in the first display area 10a, it can be identified as a "temperature-varying area" in the infrared video displayed in the second display area 10b, making it possible to easily and reliably find the abnormal area. Furthermore, it is possible to display more detailed still images of the visible light and infrared images at the problem area.

[0016] For example, if there is "delamination" on the exterior wall, even if it appears normal in visible light video, infrared video can show areas where an air layer has formed on the surface of the exterior wall or where water has accumulated, displaying them with unusual color changes. Furthermore, if, for example, "efflorescence" is present on the exterior wall, depending on its progression, it can of course be displayed as an abnormal area in both visible light and infrared video.

[0017] Figure 2 shows a case where a temperature variation was observed at the circled location (area "A") in the infrared video (see "Second Display Area 10b"). In the example shown in Figure 2, the investigator visually confirmed on-site that an emergency alarm device was embedded inside the exterior wall, and therefore reported it as so-called "noise" (see "Investigation Report" in Figure 3). Furthermore, such confirmation results can be included in the exterior wall inspection video (see Figure 2) with audio or other explanations.

[0018] Furthermore, in this embodiment, the visible light video and infrared video are linked to the display of the parts of the exterior wall of the building S that were filmed, which are then moved and displayed as markers M on the elevation view of the building S (see "Third display area 10c" in Figure 2). Therefore, in this embodiment, if an abnormality is identified in at least one of the visible light video and the infrared video, it is possible to easily identify at a glance which part of the building S the abnormality is located on.

[0019] Thus, according to this embodiment, the results of exterior wall inspections, which tend to be voluminous when documented (see "Inspection Report" in Figure 3) and difficult to understand, can be easily grasped at a glance by displaying visible light video, infrared video, and position display video in conjunction on the exterior wall inspection video display device 10.

[0020] The technologies disclosed herein are not limited to the embodiments, examples, and modifications described above, and can be implemented in various configurations without departing from the spirit thereof. For example, the technical features of the embodiments, examples, and modifications described above that correspond to the technical features of each form described in the summary of the invention may be replaced and combined as appropriate to solve some or all of the above-described problems or to achieve some or all of the above-described effects. Furthermore, technical features not described as essential in this specification may be deleted as appropriate.

[0021] For example, in the above embodiment, as the outer wall inspection video display device, a display device provided in a personal computer (see FIG. 1) was exemplified. However, as long as various videos can be displayed, for example, a display unit of a terminal such as a smartphone or a tablet (including the display unit Od of the operation device O) or a projector device may be used.

Explanation of Reference Numerals

[0022] 1…Control device 10…Outer wall inspection video display device 10a…First display area 10b…Second display area 10c…Third display area S…Building D…Drone Ca…Camera Ca1…Visible light camera Ca2…Infrared camera O…Operation device Od…Display unit M…Marker (position display video) A…Temperature-changing part

Claims

[Claim 1] A first display area that displays a visible light video of the exterior wall of a building, captured using a visible light camera mounted on the drone while the drone is moving, A second display area that displays an infrared video of the exterior wall, captured simultaneously with the visible light video using an infrared camera mounted on the drone, in synchronization with the display of the visible light video; A third display area displays a location display video indicating the part of the building where the display portion of the exterior wall displayed in the first display area and the second display area is located, Exterior wall inspection video display device equipped with this feature.

Images