KR102557363B1 - Fault diagnosis system of sewage pipe deciphering CCTV video - Google Patents

Abstract

The present invention relates to a fault diagnosis system for a sewage pipe diagnosing existence of a fault, such as a bonding error, a crack, damage, and the like in a sewage pipe and, more specifically, to a fault diagnosis system for a sewage pipe using a CCTV video of high quality, capable of obtaining a CCTV video of high quality by reducing shaking and rocking of a CCTV and rapidly and accurately diagnosing a fault part and the kind of the sewage pipe by analyzing the CCTV video of high quality. According to the present invention, the fault diagnosis system for a sewage pipe using a CCTV video of high quality includes: the CCTV photographing the sewage pipe; a moving member moved along the sewage pipe; an insulation plate installed in the moving member, and reducing the shaking of the CCTV installed thereon by absorbing shock; and an analysis engine analyzing the video which is shot by the CCTV and deciphering a fault part of the sewage pipe.

Description

Fault diagnosis system of sewage pipe deciphering CCTV video}

The present invention relates to a sewage pipe joint diagnosis system for diagnosing the presence or absence of defects such as misalignment, cracks, damage, etc. inside the sewer pipe, and more particularly, by reducing the shaking and shaking of the CCTV to obtain a high-quality CCTV image, and to obtain a high-quality CCTV image. It relates to a sewage pipe defect diagnosis system using high-quality CCTV images that can quickly and accurately diagnose the defect part and type of the sewer pipe by analyzing the image.

In general, the presence or absence of defects in the sewage pipe buried underground is diagnosed by analyzing an image taken by a CCTV installed on a moving member moving along the sewer pipe.

Since the CCTV is mounted on a movable member moving along the sewer pipe and photographs the inside of the sewer pipe, the shock applied to the movable member is transmitted and cannot maintain a horizontal state.

The quality of images captured in such an unstable state of being shaken and fluctuated is deteriorated, and the accuracy of reading the defective part of the sewage pipe is reduced by analyzing the image.

In general, a wheel, a motor, and a battery are mounted on the movable member, and the wheel is rotated by the motor to move the sewage pipe. At this time, the vibration according to the driving of the motor is transmitted to the CCTV, so that the CCTV is filmed while shaking, and the quality of the captured image is deteriorated.

For reference, the prior art for diagnosing defects in sewer pipes includes Registered Patent No. 10-2226001 "Sewage Pipe Diagnosis Support System" and Registered Patent No. 10-1557865 "Ground Subsidence Diagnosis System and Method Using CCTV Data of Sewer Pipe and GPR Data of Upper Ground" etc. have been initiated.

The present invention is an invention devised to solve the problem of the sewage pipe defect diagnosis system according to the prior art, and the CCTV is installed on a gimbal unit to maintain a horizontal state and a mounting table to reduce shaking due to impact, and the moving member is By pulling and moving by a wire rather than a motor, the shaking of the CCTV is reduced, acquiring a high-quality CCTV image with significantly reduced distortion, and analyzing the high-quality image to obtain a high-quality CCTV image that enhances the accuracy of reading the defective part of the sewage pipe. The purpose of the present invention is to provide a defect diagnosis system for sewage pipes.

Sewer pipe defect diagnosis system using high-quality CCTV images according to the present invention for achieving the above object is

CCTV filming the sewage pipe;

A moving member that moves along the sewage pipe;

a mount installed on the movable member and absorbing shock to reduce shaking of the CCTV installed thereon;

An analysis engine that analyzes the video captured by the CCTV and reads the defective part of the sewage pipe;

And a gimbal unit installed on the mounting table and maintaining the CCTV installed thereon in a horizontal state; characterized in that it further comprises,

It is installed outside the manhole and winds the wire connected to the moving member to move the moving member; characterized in that it further comprises,

The mounting base includes a floor plate installed on the movable member, a buffer plate disposed on the floor plate and having the CCTV installed thereon, and a buffer spring interposed between the floor plate and the buffer plate to absorb shock transmitted to the buffer plate, and , It is characterized in that it comprises a shock dispersing means so that the impact transmitted to the buffer plate is uniformly distributed over the entire buffer plate.

In the sewage pipeline defect diagnosis system using high-quality CCTV images according to the present invention, the CCTV is installed on a mounting table equipped with a gimbal unit and shock dispersing means to significantly reduce shaking and shaking, thereby obtaining high-quality images with minimized image distortion, In addition, the movable member is moved by the pulling of the wire rather than the driving of the motor to reduce the shaking of the CCTV to acquire high-quality images, and as a system capable of accurately analyzing the defective part, it is a very useful invention for industrial development.

1 is a diagram schematically showing a state diagram of a sewage pipe defect diagnosis system using high-quality CCTV images according to the present invention.
2 is a perspective view of a mount according to the present invention;
Figure 3 is an exploded perspective view of Figure 2;
Figure 4 is a cross-sectional view of Figure 2;

Hereinafter, a sewer pipe defect diagnosis system using high-quality CCTV images according to the present invention will be described in more detail with reference to the drawings.

Prior to a more detailed description of the sewage pipe defect diagnosis system using high-quality CCTV images according to the present invention,

Since the present invention can have various changes and various forms, the implementation examples (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to a specific form disclosed, and should be understood to include all modifications, equivalents, or substitutes included in the spirit and scope of the present invention.

In each drawing, the same reference numeral, in particular, the same number of tens and ones digits, or the same reference numerals having the same tens digit, ones digit, and alphabet indicate members having the same or similar functions, and unless otherwise specified, each of the drawings Members indicated by reference numerals may be understood as members conforming to these standards.

In addition, the components in each drawing are expressed in exaggeratedly large (or thick) small (or thin) or simplified expressions in size or thickness in consideration of convenience of understanding, etc., but the scope of protection of the present invention is thereby limited. It shouldn't be.

Terms used in this specification are only used to describe a specific embodiment (aspect, aspect, aspect) (or embodiment), and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as ~comprising~ or ~consisting of are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

As shown in the drawing, the sewage pipeline defect diagnosis system using high-quality CCTV images according to the present invention includes CCTV (10), DB (30), analysis engine (40), movable member (50), gimbal unit (70), installation table (100).

The CCTV (10) is installed on the movable member (50) and photographs the inside of the sewage pipe (1) while moving along the sewer pipe (1).

The CCTV 10 may use a general video camera or an infrared camera, or may use both a video camera and an infrared camera.

Around the CCTV (10) is provided with a lighting fixture (20) for illuminating the shooting direction of the CCTV (10). It may be preferable to use a bright and low-power LED as a light source of the lamp.

It may be preferable to use a fish-eye lens with a wide imaging angle as a lens of the CCTV 10. In addition, it may be desirable to obtain an optimal image according to the inner diameter of the sewage pipe 1 by enabling the zoom-in/zoom-out function of the CCTV 10 and the control of the shooting direction.

The DB 30 stores images captured by the CCTV 10 in real time. The video captured by the CCTV 10 is transmitted and stored in the DB 30 by wire or wirelessly.

The image of the sewer pipe 1 stored in the DB 30 is stored by matching the specifications such as the name of the sewer pipe, the diameter, length, and use of the sewer pipe, the name of the manhole at the start and end of the shooting, and the time and location of the shooting. In addition, it may be desirable to match and store so as to be interlocked with the electronic map displaying the buried positions of the sewage pipes 1.

The analysis engine 40 analyzes the image of the sewer pipe 1 stored in the DB 30 and reads whether there is a defect inside the sewer pipe 1.

Types of defects in the sewage pipe (1) include cracks and perforations in the sewer pipe (1), misjoint between two sewer pipes (1), and a step difference at the junction. can also be treated

The analysis engine 40 analyzes the image and reads the presence and type of defects in the sewage pipe 1.

The analysis engine 40 is equipped with AI capable of dramatically increasing the speed and accuracy of image analysis and reading.

The AI analyzes the image using a deep learning technique. In other words, AI repeatedly learns the images that have been read, accumulates knowledge such as the image of the defect, the type of defect, and the misjudged image of the defect and the cause of the misjudgment. Establish, recognize, infer and judge, and read the defect part and type of defect in the image of the sewage pipe (1).

The movable member 50 moves along the sewage pipe 1 in a state where the CCTV 10 is installed so that the CCTV 10 can photograph the inside of the sewer pipe 1.

As the movable member 50, a rover that moves along the bottom of the sewage pipe 1 on wheels or a boat that floats on the fluid flowing through the sewer pipe 1 may be used.

The movable member 50 is equipped with a driving device and receives power through a battery or power cable to automatically move along the sewage pipe 1 according to a user's operation or program, and is connected to the wire 61 outside the manhole. It can be manually moved along the sewage pipe (1) by pulling the wire (61).

The movable member 50 is shaken while moving along the sewage pipe 1, and the shake is transmitted to the CCTV 10, causing shaking and distortion of the image. Shaking and distortion generated in the image lowers the accuracy of image analysis.

The gimbal unit 70 is installed on the movable member 50 and maintains the CCTV 10 installed thereon in a horizontal state to reduce shaking and distortion of images. The gimbal unit 70 is provided with two axis members that rotate in the X-axis and the Y-axis, respectively, so that when the moving member 50 is tilted in the X-axis direction or the Y-axis direction, the moving member 50 tilts (shakes). ) is not transmitted to the CCTV 10 so that the CCTV 10 maintains a horizontal state. This gimbal unit 70 can be implemented by applying various gimbals used for installation in flight devices or robots, so detailed descriptions will be omitted.

The gimbal unit 70 stably maintains the horizontal state of the CCTV 10 in response to the gentle shaking of the moving member 50, but does not immediately respond to shaking and shaking caused by an impact momentarily applied to the moving member 50. As a result, the vibration is transmitted to the CCTV 10.

In this way, the mount 100 is used to reduce shaking of the CCTV 10 by an impact applied to the movable member 50 momentarily.

The mount 100 is installed on top of the movable member 50 and installed on the gimbal unit 70 thereon.

For reference, the mount 100 is also installed under the reel 60 that moves the moving member 50 by winding the wire 61 outside the manhole, so that the wire 61 is automatically It is possible to minimize the impact caused by the driving of the driving motor 63 to be wound and transferred to the moving member 50 along the wire 61 .

Hereinafter, the mount 100 will be described with reference to FIGS. 2 to 4 . For reference, in the drawings, the components are slightly exaggerated (different from the actual dimensions) so that it is easy to understand the configuration and structure of the mounting table and the operating mechanism.

The mounting table 100 includes a bottom plate 110 installed on top of a movable member 50, a buffer plate 120 disposed on the bottom plate 110 and on which the gimbal unit 70 is installed, and the A buffer spring 130 is interposed between the bottom plate 110 and the buffer plate 120 to absorb shock transmitted to the buffer plate 120 .

The impact transmitted to the buffer plate 120 is generally concentrated on a specific part. When the impact transmitted to the buffer plate 120 is concentrated on a specific part, the buffer plate 120 is tilted by the impact, and when the buffer plate 120 is tilted, the shock absorbing efficiency is lowered, and the tilted buffer plate 120 is restored to its original position. In the process of being tilted in the opposite direction, repeated fluctuations occur.

The present invention introduces an impact dispersing means that allows the entire buffer plate 120 to move only in the vertical direction without tilting even when the impact is concentrated on a specific part of the buffer plate 120, so that the shock transmitted to the buffer plate 120 is reduced. While being uniformly distributed throughout the buffer plate 120, the above problems are solved.

The impact dispersing means includes a rotating plate 140 rotatably provided on the bottom plate 110, a plurality of first inclined blocks 150 provided on the rotating plate 140 and having an inclined surface 151 formed thereon, and , A plurality of second inclined blocks 160 having corresponding inclined surfaces 161 in contact with the inclined surface 151 formed at the lower part of the buffer plate 120 and formed on both sides of the first inclined block 150 It includes a slide rail 153 and a slide roller 163 provided on both sides of the second inclined block 160 and inserted into the slide rail 153 to move along the slide rail 153.

A bearing rotatably coupled to the rotating shaft 111 provided at the center of the bottom plate 110 is provided at the center of the lower surface of the rotating plate 140, and the rotating plate 140 is rotatably coupled to the upper surface of the bottom plate 110. ) It may be desirable to have a plurality of rotating balls or rotating rollers so that the rotation is made smoothly.

Guide holes 113 and guide pins 123 are provided at the corners of the bottom plate 110 and the buffer plate 120 to guide the lifting and lowering of the buffer plate 120, and the spring 130 passes through the rotating plate 140. A light through hole 141 having a round shape is formed.

When an impact is applied to a specific part of the buffer plate 120 and the part is pressed, the second inclined block 160 close to the impact part descends and the corresponding inclined surface 161 of the second inclined block 160 moves to the first inclined block While moving along the inclined surface 151 of (150), the first inclined block 150 is pushed, and the rotating plate 140 rotates accordingly. When the rotary plate 140 rotates, the sliding rollers 163 provided on all the second inclined blocks 160 pull down their second inclined blocks 160 while moving along the restrained sliding rails 153. The buffer plate 120 is lowered.

As such, the shock dispersing means allows all of the second inclined blocks 160 to be simultaneously pulled down when the impact is concentrated on one part of the buffer plate 120, so that the buffer plate 120 moves downward without inclination. It is moved, and even when it is restored to its original position, it is moved upward without inclination.

In the above description of the present invention, a sewage pipe defect diagnosis system using high-quality CCTV images having a specific shape and structure has been described with reference to the accompanying drawings, but the present invention can be variously modified and changed by those skilled in the art, and such Modifications and changes should be construed as falling within the protection scope of the present invention.

10: CCTV 20: lighting
30: DB 40: analysis engine
50: moving member 60: winding reel
61: wire 70: gimbal unit
100: mounting table 110: bottom plate
120: buffer plate 130: buffer spring
140: rotary plate 150: first inclined block
160: 2nd inclined block

Claims (4)

CCTV filming the sewage pipe;
A moving member that moves along the sewage pipe;
a mount installed on the movable member and absorbing shock to reduce shaking of the CCTV installed thereon;
An analysis engine that analyzes the video captured by the CCTV and reads the defective part of the sewage pipe;

The mounting base includes a floor plate installed on the movable member, a buffer plate disposed on the floor plate and having the CCTV installed thereon, and a buffer spring interposed between the floor plate and the buffer plate to absorb shock transmitted to the buffer plate, and , It is made by including an impact dispersing means so that the impact transmitted to the buffer plate is uniformly distributed over the entire buffer plate,
The impact dispersing means includes a rotary plate rotatably provided on the bottom plate, a plurality of first inclined blocks provided on the rotary plate and having an inclined surface formed thereon, and a corresponding inclined surface provided on the buffer plate at a lower part contacting the inclined surface. A plurality of second slope blocks formed thereon, slide rails formed on both sides of the first slope block, and slide rollers provided on both sides of the second slope block and inserted into the slide rail to move along the slide rail Sewer pipe defect diagnosis system using high-quality CCTV images, characterized in that it comprises. According to claim 1,
Gimbal unit installed on the mounting table and maintaining the CCTV installed thereon in a horizontal state; sewage pipe defect diagnosis system using high-quality CCTV images, characterized in that it further comprises. According to claim 1,
A sewage pipe defect diagnosis system using high-quality CCTV images, characterized in that it further comprises; a winding reel installed outside the manhole and winding the wire connected to the moving member to move the moving member. delete

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