JP2007178276A - Observation and inspection device of structure, and observation and inspection method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an observation and inspection device capable of visually observing and inspecting a structure easily and inexpensively; and to provide an observation and inspection method. <P>SOLUTION: The observation and inspection device is composed of the digital camera 1 housed in a waterproof case 11, a monitor device 2 for displaying the images captured by the digital camera 1, an AV cable 3 for connecting the digital camera 1 and the monitor device 2, a jig 4 formed by joining poles 41 for making the digital camera 1 approach the region to be inspected of the structure, a remote operation device 5 capable of operating the shutter of the digital camera 1 and a video receiving device 7 for recording the image. The digital camera 1 is suspended to the region to be inspected; the region to be inspected is observed by the monitor device 2 installed at an observation position, and the shutter is operated to store the image in a memory device equipped with the digital camera 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an observation inspection apparatus and an observation inspection method for a structure for visually inspecting and inspecting the appearance of a structure such as a quay, a pier, a pier, and a high-rise building, and in particular, an operator and an inspector can easily approach. The present invention relates to an observation inspection apparatus and an observation inspection method for a structure for visually inspecting and inspecting the appearance of a part that cannot be performed.

  For example, steel pipe piles on a pier constructed on the coast are subject to corrosion by seawater and adhesion of marine organisms over time. For this reason, it is necessary to regularly perform an appearance inspection by visual observation by an expert.

  Therefore, it is ideal that a scaffold is installed around the steel pipe pile, and an expert ascends to this scaffold, and the expert himself / herself makes a direct visual judgment of the part to be inspected and takes necessary pictures. is there. However, although it is possible to construct a scaffold for steel pipe piles near the coast, it is extremely difficult to construct a scaffold for steel pipe piles located offshore.

  On the other hand, work using a scaffold is a work at a high place, which may be dangerous. Therefore, for example, an inspector gives an instruction of a shooting point to a craftsman who is an expert in high altitude work, and judges by looking at a photograph taken by the craftsman.

  In addition, observation inspection is necessary for the underwater part of the steel pipe pile. Therefore, regarding the underwater part, it is common to make an inspector's instruction of a shooting point to a diver who is an expert in underwater work, and to judge by looking at a photograph taken by the diver.

  However, in the current situation, it is not possible to obtain necessary photographs and sufficient inspection materials cannot be obtained by photographing by workers who do not have specialized knowledge for inspection.

  Further, as inspection materials, not only photographs, that is, still images, but also moving images taken while moving the region to be inspected may be required. In such a case, it was necessary to prepare two cameras, a still image camera and a moving image video camera (VTR).

  On the other hand, with recent advances in digital technology, high-resolution still images can be obtained even with inexpensive digital cameras. Moreover, the digital camera can store as many images as the memory capacity allows. Some digital cameras not only display the image currently captured by the lens on a built-in monitor, but also have a function of displaying this image on a television monitor. Furthermore, there is a digital camera having a so-called remote control function that enables remote operation.

  Patent Document 1 proposes an underwater inspection apparatus that inspects surface defects and the like generated on a wall surface in water by underwater remote operation of a microscope.

JP 2000-9884 A

  However, the installation of the scaffolding is expensive and the removal work is also required after the inspection. There are also many sites where it is impossible to install a scaffold. Furthermore, the inspection work may be performed in a natural environment, for example, the influence of waves or strong winds, or in a high temperature environment or a low temperature environment, and the work may be dangerous.

  On the other hand, underwater photography by a diver or high-altitude work by a craftsman, the will of the professional inspector is not sufficiently communicated to the worker, and there are many cases where the necessary images cannot be obtained.

  Moreover, in order to obtain a large number of high-quality still images and necessary moving images, a still image camera and a moving image camera are required, and a plurality of workers may be required. Therefore, the present situation is that the labor cost is increased along with the equipment cost.

  An object of the present invention is to provide an observation inspection apparatus and an observation inspection method capable of performing observation inspection by visual observation of a structure easily and inexpensively.

  In order to solve the above-mentioned problems, the invention according to claim 1 is a digital camera capable of photographing a part to be inspected of a structure, a monitor device for displaying an image captured by the digital camera, the digital camera, and the monitor device. A remote control device capable of operating at least a shutter of the digital camera, and an observation inspection position is set at a position away from the inspection site, and the monitor device is provided at the observation inspection position. The structure inspection inspection apparatus is characterized in that a still image of a region to be inspected is stored in the digital camera by operating the remote control device while confirming an image of the monitor device at the observation inspection position. is there.

  According to a second aspect of the present invention, there is provided the structure inspection and inspection device according to the first aspect, comprising a recording storage device capable of storing the video imaged on the monitor device, and the recording process as a moving image as the video recording memory. Store in the device.

  According to a third aspect of the invention, there is provided the structure inspection / inspection apparatus according to the first or second aspect, wherein the digital camera is housed in a waterproof case so as to be capable of underwater photography.

  The invention according to claim 4 is the structure inspection / inspection apparatus according to claim 2 or 3, wherein the monitor device is a display device of a personal computer, and the recording storage device is a storage device of a personal computer. It is.

  The invention according to claim 5 is the structure inspection and inspection apparatus according to any one of claims 1 to 4, wherein the remote operation device can perform a shutter operation, a focus adjustment operation, and a field angle adjustment operation.

  The invention according to claim 6 is the structure inspection and inspection device according to any one of claims 1 to 5, wherein the monitor device and the remote control device are connected to a network, and the site to be inspected is remotely located. Observation inspection is possible.

  The invention according to claim 7 is the structure inspection inspection apparatus according to any one of claims 1 to 6, wherein the digital camera is attached to a jig, and the digital camera is attached to the part to be inspected using the jig. It was made to approach.

  In the invention according to claim 8, the digital camera is brought close to the site to be inspected, the image captured by the digital camera is displayed on the monitor device through the AV cable, and the image of the monitor device is visually observed by a specialized inspector. A structure observation and inspection method characterized in that a necessary image is stored in the digital camera by operating an operating device, and the stored image is examined.

  The invention according to claim 9 is the method for observing and inspecting the structure according to claim 8, wherein the image projected on the monitor device is stored as a moving image in a recording storage device, and the still image stored in the digital camera To consider.

  According to the first aspect of the invention, an inspector having specialized knowledge visually observes an image of a monitor device installed at a remote observation inspection position without approaching the inspected site, thereby The appearance can be observed and inspected. Moreover, a necessary image can be memorize | stored using a remote control apparatus, and it can examine in detail later.

  According to the second aspect of the present invention, a single digital camera can store a large amount of high-quality still images, and the observation process of the region to be inspected can be stored as a moving image in the recording storage device. At a later date, the still image and the moving image can be viewed in detail.

  According to the invention of claim 3, a general digital camera manufactured for the ground can be photographed underwater, and an observation and inspection device for an underwater structure can be provided easily and inexpensively. .

  According to the invention which concerns on Claim 4, the image data obtained from the digital camera can be memorize | stored and processed using a personal computer, and data can be utilized effectively. For example, detailed examination is possible by enlarging and displaying a part.

  According to the fifth aspect of the present invention, not only the shutter operation but also zooming in and manual focusing are possible, and a desired image can be easily obtained.

  According to the invention which concerns on Claim 6, the simultaneous observation by the some inspector who has expert knowledge is possible through a network.

  According to the seventh aspect of the present invention, it is possible to obtain a necessary image without directly approaching the part to be inspected, and it is possible to easily obtain an image of a part that the worker cannot approach.

  According to the invention according to claim 8, an inspector having specialized knowledge visually observes an image of a monitor device installed at a distant position without approaching the part to be inspected, thereby providing an appearance of the structure. Can be observed. Moreover, a necessary image can be memorize | stored using a remote control apparatus, and it can examine in detail later.

  According to the invention of claim 9, a single digital camera can store a large amount of high-quality still images, and the observation process of the site to be inspected can be stored as a moving image in the recording storage device. At a later date, the still image and the moving image can be viewed in detail.

  A digital camera is housed in a waterproof case, and the waterproof case is attached to a jig formed by adding a pole to a desired length with a connector, and the digital camera and a monitor device for projecting an image captured by the digital camera are provided. Connected with an AV cable, the digital camera is hung on the site to be inspected by the pole, and an inspector operates the shutter of the digital camera with a remote control device while viewing the image of the monitor device, and obtains a still image, The observation process was stored in a recording storage device to obtain a moving image.

  FIG. 1 is a schematic configuration diagram showing an embodiment of an observation and inspection apparatus according to the present invention. The observation and inspection apparatus in this embodiment includes a digital camera 1, a monitor apparatus 2 that captures an image captured by the digital camera 1, an AV cable 3 that connects the digital camera 1 and the monitor apparatus 2, and the digital camera 1. For example, a steel pipe pile 91 of the pier 9 and the like, and a remote control device 5 capable of operating the shutter of the digital camera 1.

  In recent years, there are many digital cameras 1 that are easy to handle with high resolution. Therefore, a general commercial product can be used for the digital camera 1 used in the present invention. Further, in recent years, the digital camera 1 includes a terminal for connecting an AV cable 3 for transmitting a video signal to the outside in order to use the external monitor device 2. Further, there is a model in which a waterproof case 11 is prepared for underwater photography. In addition, some digital cameras 1 include a remote control device 5 (hereinafter sometimes abbreviated as a remote controller 5) that enables shutter operation from a remote position.

  Therefore, the digital camera 1 is housed in the waterproof case 11 and attached to the jig 4 for approaching the part to be inspected. For example, in the embodiment shown in FIG. 1, the jig 4 is formed by forming a fixed pole 41 to a desired length by a connecting tool 42. Then, the waterproof case 11 is attached to the lower end of the pole 41 via the camera fixing stay 43. Further, the AV cable 3 and the cable 6 of the remote controller 5 are pulled out to the observation position set on the pier 9 along the pole 41 which is the jig 4.

  As described above, according to the jig 4 formed by adding the pole 41 by the connecting tool 42, it is possible to cope from a shallow part to a deep part. Moreover, when moving, it is easy to carry by disassembling.

  The monitor device 2 that displays the video captured by the digital camera 1 displays a video signal as video, and a liquid crystal monitor, a CRT monitor, a television receiver equipped with a video input terminal, or the like can be used.

  Further, in the embodiment shown in FIG. 1, a recording storage device 7 for recording an image projected on the monitor device 2 is connected. For example, a video deck can be used as the recording storage device 7, and a magnetic tape, that is, a video tape is used as a storage medium. Therefore, it is possible to store a long-time moving image at a low cost. Of course, if a so-called digital video deck is used, high-quality digital video can be recorded.

  Next, the usage of the observation inspection apparatus according to the present invention will be described. FIG. 2 is a schematic perspective view showing the pier 9 as an underwater structure, and this pier 9 is extended toward the offshore with a steel pipe pile 91 as a support. FIG. 3 is an explanatory diagram of the inspection state. In the figure, MHWL is the average high tide surface, and MLWL is the average low tide surface. And since it is said that the rate of corrosion is the fastest in the splash zone above the average high tide surface and in the seawater immediately below the average low tide surface, it is necessary to focus on observation.

  Therefore, the monitor device 2 is installed on the pier 9, and the hook of the pier 9 is removed, or the inspection port 92 provided on the pier 9 is opened. On the other hand, the digital camera 1 is housed in a waterproof case 11, and this waterproof case 11 is attached to the lower end of a pole 41, which is a jig 4, using a camera fixing stay 43. Further, the AV cable 3 connected to the digital camera 1 is connected to the monitor device 2, and the remote operation cable 6 is connected to the remote controller 5.

  Next, the digital camera 1 is suspended from the inspection port 92 by the pole 41 and brought close to the part to be inspected. At this time, the inspector P1 who is an expert gives an instruction to the worker P2 while watching the image of the monitor device 2, and the worker P2 operates the pole 41 and digitally displays the necessary image on the monitor device 2. The lens of the camera 1 is directed to the site to be inspected. Then, the inspector P1 operates the remote controller 5, that is, operates the shutter to store a desired still image. Further, the recording storage device 7 is operated to store the moving image of the digital camera 1 as a moving image. The still image is stored in a memory provided in the digital camera 1.

  In other words, the inspector P1 operates the digital camera 1 while viewing the image of the monitor device 2 to store a high-resolution still image of a necessary part, and also stores the image of the observation process as a moving image. it can.

  Therefore, according to the observation / inspection apparatus according to this embodiment, the expert engineer actually approaches the part to be inspected as an inspector P1 with the appearance of the steel pipe pile 91 of the pier 9 using an inexpensive commercially available digital camera 1. It is possible to carry out observation and inspection directly by visual inspection. At this time, there is no need to build a scaffold around the site to be inspected. If necessary, a large number of high-resolution still images can be taken, and a wide range of observation images can be stored as moving images. Therefore, it is possible to examine still images and moving images in detail later.

  The observation / inspection apparatus according to the present invention is not limited to the above-described embodiment. For example, the monitoring apparatus 2 is located in a remote place by connecting the monitor apparatus 2 to a network such as a LAN (Local Area Network) or a WAN (Wide Area Network). In the meantime, observation inspection can be performed. Further, by using a personal computer (hereinafter sometimes referred to as a PC), that is, the digital camera 1 is connected to the PC, the display device of the PC is monitored, and a still image is stored in the storage device of the PC. It is also possible to store moving images.

  Therefore, image data obtained from the digital camera 1 can be stored and processed as digital data using a PC, and the data can be used effectively. For example, detailed examination is possible by enlarging and displaying a part. In addition, a clear image can be maintained without being deteriorated during processing.

  Moreover, the professional engineer who is the inspector P1 does not need to be present at the inspection site, and can instruct the operator P2 to operate the jig 4 while observing the monitor device 2. The necessary image can be stored as a still image by the inspector P1 himself operating the remote controller 5, that is, pressing the shutter. In addition, angle of view adjustment (zoom) and focus adjustment (focusing) can be performed by the remote controller 5, and a desired image can be easily obtained.

  Furthermore, if the monitor apparatus 2 connected to the network is used, simultaneous observation by an inspector having a plurality of specialized knowledge in different places is possible. An observation inspection by inspectors of different specialized fields is also possible.

  The jig 4 for attaching the digital camera 1 is not limited to the pole 41 shown in the above embodiment, but may be suspended by a rope. A so-called robot provided with sensor means and moving means can also be used. That is, it is possible to install a camera on the robot and move it to a desired part.

  Then, according to the structure inspection and inspection method according to the present invention, an inspector having specialized knowledge gives instructions to the worker holding the digital camera, causes the digital camera to approach the part to be inspected, and the inspector himself Can visually observe an image of a monitor device installed at a distant position and store a necessary image using a remote control device.

  Therefore, the present invention can be used not only for visual inspection of steel pipe piles, quay walls, piers, etc., but also for inspection of parts that cannot be easily accessed, such as inspection of outer walls of high-rise buildings and the inside of nuclear reactors. It can also be used to search for survivors inside a collapsed building during an earthquake.

  Although the present invention has been described with reference to the illustrated embodiments, the present invention is not limited to the above-described embodiments, and can be appropriately implemented without changing the configuration described in the claims.

It is a schematic block diagram for demonstrating one Example of the observation inspection apparatus which concerns on this invention. It is a schematic perspective view of the jetty which becomes an example of a test object. It is explanatory drawing of a test | inspection state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Digital camera 2 Monitor apparatus 3 AV cable 4 Jig 5 Remote operation device 6 Cable 7 Recording storage apparatus 9 Pier 11 Waterproof case 41 Pole 42 Connection tool 43 Camera fixing stay 91 Steel pipe pile 92 Inspection port

Claims (9)

Operate at least the shutter of the digital camera, a digital camera capable of photographing the part to be inspected of the structure, a monitor device that captures an image captured by the digital camera, an AV cable that connects the digital camera and the monitor device Remote control device,
By setting an observation inspection position at a position away from the site to be inspected, placing the monitor device at the observation inspection position, and confirming an image of the monitor device at the observation inspection position, by operating the remote control device An observation inspection apparatus for a structure, wherein a still image of a region to be inspected is stored in the digital camera. An observation inspection apparatus for a structure according to claim 1,
An observation inspection apparatus for a structure, comprising a recording storage device capable of storing an image projected on the monitor device, and storing an observation process as a moving image in the recording storage device. The structure inspection and inspection apparatus according to claim 1 or 2, wherein the structure is configured to be capable of underwater photographing by housing the digital camera in a waterproof case. An observation inspection apparatus for a structure according to claim 2 or 3,
The monitor device is a display device of a personal computer, and the recording storage device is a structure observation and inspection device which is a storage device of a personal computer. An observation inspection apparatus for a structure according to any one of claims 1 to 4,
The remote operation device is a structure observation / inspection device capable of shutter operation, focus adjustment operation, and angle of view adjustment operation. An observation inspection apparatus for a structure according to any one of claims 1 to 5,
The monitor device and the remote control device are connected to a network, and are a structure observation / inspection device capable of observing and inspecting a region to be inspected from a remote location. An observation inspection apparatus for a structure according to any one of claims 1 to 6,
An observation inspection apparatus for a structure in which the digital camera is attached to a jig, and the digital camera is brought close to an inspection site using the jig. Necessary by bringing the digital camera close to the part to be inspected, displaying the video captured by the digital camera on the monitor device via the AV cable, and visually observing the image of the monitor device by operating a remote control device. A method for observing and inspecting a structure, characterized in that a simple image is stored in the digital camera and the stored image is examined. An observation inspection method for a structure according to claim 8,
A method of observing and inspecting a structure in which an image projected on the monitor device is stored as a moving image in a recording storage device and examined together with a still image stored in the digital camera.

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