KR102391391B1 - Method and apparatus for crack monitoring in building using crack gauge - Google Patents

Abstract

The present invention relates to a method and an apparatus for monitoring a crack of a building by using a crack gauge. The apparatus for monitoring a crack of a building by using a crack gauge includes: a first crack inspection member having a first measurement gradation marked on one side to check progress information of a crack, and having the other side fixed to one side of a cracked wall surface; and a second crack inspection member having a second measurement gradation formed on one side with a position changed with respect to the first measurement gradation in accordance with a crack change by having an end part adjacent to the first crack inspection member, located in a laterally overlapped state, and having the other side fixed to the other side of the cracked wall surface. In accordance with the present invention, both ends of the first and second crack inspection members are attached to the cracked wall surface such that first and second initial position adjustment lines of the first and second measurement gradations can be matched with each other, and then, photographed images, in which positions of the first and second measurement gradations are changed due to the movement of the first and second crack inspection members, are acquired to recognize image processing areas of the first and second measurement gradations through first and second image processing area marking parts from the corresponding images, and image recognition and image processing are limited in area in accordance with marked positions of image recognition marks of the first and second image processing area marking parts during the procedure of recognizing crack variations through a position difference in the image processing areas of the first and second measurement gradations, and, accordingly, an image processing speed can become faster and a recognition rate can become higher.

Description

Method and device for monitoring cracks in buildings using crack gauges {METHOD AND APPARATUS FOR CRACK MONITORING IN BUILDING USING CRACK GAUGE}

The present invention relates to a method and apparatus for monitoring cracks in a building using a crack gauge, and more particularly, to a method and apparatus for monitoring crack information for safety diagnosis of an aged building.

In general, for the safety diagnosis of an aging building, it is necessary to periodically inspect the crack condition of the building.

It is difficult to get permission for new construction and reconstruction as an urban regeneration project, and eco-friendly remodeling projects that reuse buildings after repairs such as remodeling and major repairs are becoming active.

Moreover, when a certain amount of time elapses after the construction of a building, there are many cases where a certain degree of cracking occurs due to various causes. It is more efficient to repair and continue to use the structure.

In addition, in the case of new construction of large buildings, it is essential to evaluate the impact of small and medium-sized buildings in the vicinity and monitor cracks.

As such, a technique for measuring the progress of cracks in a building has been proposed in Korean Utility Model Registration No. 0489397.

Patent Document 1 is a method used in the prior art to fix a measuring slide on which a scale in the shape of a length ruler is drawn, called a slide crack monitor, using an adhesive on both sides around the cracked part of the building wall, and then the fixed wall surface is deformed by increasing or decreasing cracks. A safety diagnosis technician visually judges the change in the scale of a simple slide measurer and writes it down by hand in the report.

A technician directly measures the gap between the holes of the crack tip with a vernier caliper, a tool that can measure the dimensions of a circular hole in the middle of a crack tip by attaching a metal tip called a crack team with adhesive to both sides of the crack wall The method of re-measuring and manually inputting the amount of change is being used.

However, both the slide crack monitor and the crack tip are a method of resistance by manually inputting information measured by the operator after a professional technician visits the site and conducts practical work through visual measurement or measuring equipment, and there are the following problems.

First, the cost loss such as personnel expenses is large due to on-site visits and regular re-visits of safety diagnosis technicians. Third, since crack information measures many parts per building, there is a risk of loss of a lot of measurement data and periodic management. It is difficult for technicians to respond to emergency measurements.

Korea Registered Utility Model No. 0489397 (2019.06.05)

The present invention has been devised in view of the above points, and the solution of the present invention is to measure the progress of cracks more accurately through a crack gauge, and through this, a method for monitoring cracks in a building using a crack gauge capable of monitoring crack information and to provide an apparatus.

In a building crack monitoring device using a crack gauge according to the present invention for achieving the above object, the first measurement scale for checking the progress information of the crack is displayed on one side, and the crack is fixed to one side of the wall on the other side a first crack inspection member; and a second measurement scale in which a position with the first measurement scale is changed according to a crack change is formed on one side, and a crack is generated on the other side while the end adjacent to the first crack inspection member is positioned in a left and right overlapping state It may include; a second crack inspection member fixed to the other side of the wall surface.

The first and second measurement scales may include first and second initial position adjustment lines formed at the center and on both sides, respectively.

The first and second initial position adjustment lines may be displayed to have different lengths and colors from the first and second measurement scales.

It may include first and second image processing region display units for respectively displaying image processing regions during image recognition processing on one side adjacent to the first and second crack inspection members.

The first and second image processing area display units are provided at positions adjacent to the lines located on both sides of the first and second initial position adjustment lines, and are located on both sides based on the first and second initial position adjustment lines located in the center. Any one area can be displayed.

The first and second image processing region display units may perform region recognition and image processing according to the display position of the image recognition mark.

The first and second crack inspection members are formed in a bent shape, and may be printed transparently or with a color on the bottom surface.

In addition, the method for monitoring cracks in a building using a crack gauge of the present invention uses the first and second crack inspection members to match the first and second initial position adjustment lines among the first and second measurement scales formed on opposite surfaces to the wall where cracks have occurred. A first step of attaching to the other side of the work; a second step of moving the first and second crack inspection members according to crack changes; a third step of acquiring a photographed image in which the positions of the first and second measurement scales are changed according to the movement of the first and second crack inspection members; a fourth step of recognizing the image processing region of the first and second measurement scales through the first and second image processing region display units positioned at each of the first and second initial positioning lines in the image; and a fifth step of recognizing a crack change amount through a position difference in the image processing region of the first and second measurement scales.

In the fourth step, the number of image recognition marks is displayed differently for each position of the first and second image processing region display units, so that regions of the first and second measurement scales can be recognized and image processed according to the display positions.
A building crack monitoring device using a crack gauge according to the present invention includes: a first crack inspection member fixed to one side of a wall where a first measurement scale for checking crack progress information is displayed on one side, and a crack has occurred on the other side; A second measurement scale is formed on one side of the wall adjacent to the first crack inspection member, and the second measurement scale is formed on one side and the other side has cracks, while the adjacent ends of the first crack inspection member are positioned in a state of overlapping left and right, and the position of the first measurement scale is changed according to the crack change. A second crack inspection member fixed to the other side of the; and first and second image processing region display units provided on one side adjacent to the first and second crack inspection members to respectively display image processing regions during image recognition processing.

According to the present invention, both ends of the first and second crack inspection members are attached to the wall where cracks are generated so that the first and second initial position adjustment lines among the first and second measurement scales coincide with each other, and then inspect the first and second cracks. Acquire a photographed image in which the positions of the first and second measurement scales are changed according to the movement of the member, recognize the image processing regions of the first and second measurement scales in the image through the first and second image processing region display unit, and , 2 In the process of recognizing the amount of crack change through the position difference in the image processing area of the measurement scale, the area recognition and image processing are limited according to the display position of the image recognition mark of the display part of the first and second image processing area, so the image processing speed is It has the effect of speeding up and increasing the recognition rate.

1 is a perspective view showing a building crack monitoring device using a crack gauge of the present invention.
Figure 2 is a plan view showing a building crack monitoring device using the crack gauge of the present invention.
3 is a plan view showing a state in which the first and second crack inspection members of the building crack monitoring device using the crack gauge of the present invention are opened by cracks.
4 is a plan view showing a state in which the first and second crack inspection members of the building crack monitoring device using the crack gauge of the present invention are narrowed by cracks.
5 is a block diagram illustrating a method for monitoring cracks in a building using a crack gauge of the present invention.
6 is a schematic diagram illustrating a process of photographing a building crack monitoring device as an image by a mobile terminal device in the building crack monitoring method using a crack gauge of the present invention.

The above objects, features and other advantages of the present invention will become more apparent by describing preferred embodiments of the present invention in detail with reference to the accompanying drawings. Hereinafter, a method and apparatus for monitoring cracks in a building using a crack gauge according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4, the building crack monitoring apparatus 100 using a crack gauge according to an embodiment of the present invention includes a first crack inspection member 110 and a second crack inspection member 120, It is a crack gauge that displays crack progress information according to the change in length.

"자 형상으로 형성되어, 타측에 균열이 발생한 벽면의 일측면에 고정되도록 고정부(111)가 형성되고, 일측인 연장부(112) 상면에 균열의 진행 정보를 확인할 수 있는 제1 측정 눈금(113)이 표시된다. 여기서, 연장부(112)는 제1 균열 검사부재(110)의 전체 폭에 절반 정도의 폭으로 갖도록 구비될 수 있다.The first crack inspection member 110 has a planar shape as shown in FIGS. 1 to 4 "

The first measuring scale ( 113) is indicated, where the extension part 112 may be provided to have a width of about half the entire width of the first crack inspection member 110 .

Furthermore, the first crack inspection member 110 is made of transparent acrylic, etc., and when the attachment part, which is the fixing part 111, is contaminated and the scale printed on the transparent acrylic cannot be recognized, the fixing part 111 is colored on the bottom surface. Use the one printed (preferably printed on white acrylic).

The fixing part 111 can be coupled to one side of the wall where an adhesive or the like is applied and cracked due to adhesive force.

The first measurement scale 113 includes a plurality of first measurement lines 1130 displayed in a state opposite to the second measurement scale 123 of the second crack inspection member 120 , and the first measurement line 1130 . It includes a first center initial position adjustment line 1132 positioned at an intermediate point and a first outer initial position adjustment line 1134 positioned at both ends of the first measurement line 1130 .

Furthermore, the first measurement scale 113 is printed on the transparent background of the first crack inspection member 110 to visually check the crack location of the attachment site so that it can be accurately positioned and attached.

Here, the first measurement scale 113 can be used by adjusting the interval among 0.3 to 1 mm intervals as needed, and the interval is not limited thereto and can be changed.

At this time, the first measurement line 1130 is displayed in black, the first center initial position adjustment line 1132 and the first outer initial position adjustment line 1134 are displayed in blue to be displayed in different colors, and the color is not limited thereto, and can be changed to various colors.

Moreover, the first center initial position adjustment line 1132 and the first outer initial initial position adjustment line 1134 are displayed to have a longer length than the first measurement line 1130 .

In addition, the 1-1 image processing region display unit 114 and the 1-2 image processing region display unit 114 that respectively recognize the image processing region and limit the image processing region during image recognition processing on the outside of the first outer initial position adjustment line 1134 . The area display units 115 are respectively displayed.

At this time, the 1-1 image processing area display unit 114 and the 1-2 image processing area display unit 115 are printed on the transparent background of the first crack inspection member 110 to visually check the location of the cracks in the attachment site accurately. to be able to attach it.

On the other hand, the 1-1 image processing area display unit 114 displays the image processing area of the first measurement line 1130 located on the left side of the first center initial position adjustment line 1132 in FIG. 2 , and the first- 2 The image processing area display unit 115 displays the image processing area of the first measurement line 1130 positioned to the right of the first center initial position adjustment line 1132 in FIG. 2 .

As an example, the 1-1 image processing area display unit 114 limits the area of area recognition and image processing according to the display position of the image recognition mark indicated by one white rectangle at the left front position within the black rectangle. do.

In addition, the 1-2 image processing area display unit 115 limits the area of area recognition and image processing according to the display positions of the image recognition marks indicated by two white squares at both front positions in a square provided in black, for example. do.

In this way, the left and right positions of the first measurement scale 113 are identified according to the positions of the image recognition marks displayed in white on the 1-1 image processing region display unit 114 and the 1-2 image processing region display unit 115 . make it possible

Accordingly, the 1-1 image processing region display unit 114 and the 1-2 image processing region display unit 115 display the first and second measurement scales 113 according to the movement of the first and second crack inspection members 110 and 120 . , 114) in a state in which a photographed image with a changed position is acquired through a mobile terminal device (H), etc., by limiting the area recognition and image processing of the first measurement scale 113 in the image to improve the image processing speed and the recognition rate height plays a role.

Furthermore, the location information of the first and second measurement scales 113 and 114 by the 1-1 image processing area display unit 114 and the 1-2 image processing area display unit 115 is displayed on the mobile terminal device H or the mobile After transmission from the terminal device (H) to the server, the image is processed by an image reading-only app or an image-reading program.

"자 형상으로 형성되어, 타측에 균열이 발생한 벽면의 타측면에 고정되도록 고정부(121)가 형성되고, 일측인 연장부(122) 상면에 균열의 진행 정보를 확인할 수 있는 제2 측정 눈금(123)이 표시된다. 여기서, 연장부(122)는 제2 균열 검사부재(120)의 전체 폭에 절반 정도의 폭으로 갖도록 구비될 수 있다.The second crack inspection member 120 has a planar shape as shown in FIGS. 1 to 4 "

A second measuring scale ( 123), where the extension 122 may be provided to have a width of about half the entire width of the second crack inspection member 120 .

Furthermore, the second crack inspection member 120 is made of transparent acrylic, etc., and when the attachment part, which is the fixing part 121, is contaminated and the scale printed on the transparent acrylic cannot be recognized, the fixing part 121 is colored on the bottom surface. Use the one printed (preferably printed on white acrylic).

The fixing part 121 can be coupled to the other side of the wall where an adhesive or the like is applied and cracked by adhesive force.

The second measurement scale 123 includes a plurality of second measurement lines 1230 displayed in a state opposite to the first measurement scale 113 of the first crack inspection member 110 and the second measurement line 1230 . It includes a second center initial position adjustment line 1232 positioned at an intermediate point and a second outer initial position adjustment line 1234 positioned at both ends of the first measurement line 1230 .

Moreover, the second measurement scale 123 is printed on the transparent background of the second crack inspection member 120 to visually check the location of the crack at the attachment site so that it can be accurately positioned and attached.

Here, the second measurement scale 113 is preferably formed at the same interval as the first measurement scale 113 .

At this time, the second measurement line 1230 is displayed in black, and the second center initial position adjustment line 1232 and the second outer initial position adjustment line 1234 are displayed in blue and displayed in different colors, is not limited thereto, and can be changed to various colors.

Moreover, the second center initial position adjustment line 1232 and the second outer initial position adjustment line 1234 are displayed to have a longer length than the second measurement line 1230 .

In addition, a 2-1 image processing area display unit 124 and a 2-2 image processing area for each recognizing an image processing area and limiting the image processing area during image recognition processing on the outside of the second outer initial position adjustment line 1234 and 2-2 image processing The area display units 125 are respectively displayed.

In addition, the 1-1 image processing region display unit 114 and the 1-2 image processing region display unit 114 that respectively recognize the image processing region and limit the image processing region during image recognition processing on the outside of the first outer initial position adjustment line 1134 . The area display units 115 are respectively displayed.

At this time, the 2-1 image processing area display unit 124 and the 2-2 image processing area display unit 125 are printed on the transparent background of the second crack inspection member 120 to visually check the location of the crack at the attachment site and accurately to be able to attach it.

On the other hand, the 2-1 image processing area display unit 124 displays the image processing area of the second measurement line 1230 located to the left of the second center initial position adjustment line 1232 in FIG. 2 , and the second- The second image processing region display unit 125 displays the image processing region of the second measurement line 1230 positioned to the right of the second center initial position adjustment line 1232 in FIG. 2 .

As an example, the 2-1 image processing region display unit 124 displays the region recognition and image processing regions according to the display positions of the image recognition marks indicated by three white squares at both front and left rear positions in a black rectangle. will be limited

And the 2-2 image processing area display unit 125, for example, in the square provided in black, at both front and both sides of the rear position, the area recognition and image processing area according to the display position of the image recognition mark marked with four white squares. will be limited

In this way, the left and right positions of the second measurement scale 123 are identified according to the positions of the image recognition marks displayed in white on the 2-1 image processing region display unit 124 and the 2-2 image processing region display unit 125 . make it possible

Accordingly, the 2-1 image processing area display unit 124 and the 2-2 image processing area display unit 125 are displayed on the first and second measurement scales 113 according to the movement of the first and second crack inspection members 110 and 120 . , 114) in a state where the location of the changed photographed image is acquired through a mobile terminal device (H), etc., by limiting the area recognition and image processing area of the second measurement scale 123 in the image height plays a role.

Furthermore, the location information of the first and second measurement scales 113 and 114 by the 2-1 image processing area display unit 124 and the 2-2 image processing area display unit 125 is displayed on the mobile terminal device H or the mobile After transmission from the terminal device (H) to the server, the image is processed by an image reading-only app or an image-reading program.

5 and 6 , the method for monitoring cracks in a building using a crack gauge of the present invention includes attaching the first and second crack inspection members (S200), moving the first and second crack inspection members according to crack changes (S210) , including a photographed image acquisition step (S220), a first and second measurement scale image processing step (S230), and a crack change amount recognition step (S240).

In the first and second crack inspection member attachment steps (S200), the fixing part 111 of the first crack inspection member 110 is fixed to one side of the wall where the crack occurs after location selection, and the other side of the wall where the crack occurs This is a step of fixing the fixing part 121 of the second crack inspection member 120 .

"자 형상으로 형성된 제1 균열 검사부재(110)의 연장부(112)와 "

"자 형상으로 형성된 제2 균열 검사부재(120)의 연장부(122)를 좌우로 중첩시킨 상태에서 균열이 발생한 벽면에 고정시키며, 상하로 겹치지 않아 제1, 2 균열 검사부재(110, 120)의 두께를 감소시킨다.At this time, the first and second crack inspection member attachment step (S200) is "

"The extension part 112 of the first crack inspection member 110 formed in the shape of a ruler, and "

"The extension part 122 of the second crack inspection member 120 formed in a shape is fixed to the wall where the crack has occurred in a state in which it is overlapped left and right, and the first and second crack inspection members 110 and 120 do not overlap vertically. reduce the thickness of

Furthermore, in the first and second crack inspection member attachment step ( S200 ), the first measurement scale 113 of the first crack inspection member 110 and the second measurement scale 123 of the second crack inspection member 120 are mutually Fix it in the matched state to complete the setting.

In the first and second crack inspection members moving step (S210) according to the crack change, the first and second crack inspection members 110 and 120 move inward or outward according to the crack change in the first measurement scale 113 and the second 2 This is a step in which the position of the measurement scale 123 is changed.

That is, the first and second crack inspection member moving steps (S210) according to the crack change are the first center initial position adjustment line 1132 of the first measurement scale 113 and the second measurement scale 123 when the crack is opened. When the second center initial position adjustment line 1232 is opened in opposite directions and the crack is narrowed, the first center initial position adjustment line 1132 of the first measurement scale 113 and the second measurement scale ( 123) of the second center initial position adjustment line 1232 is narrowed in a direction facing each other.

As a result, when cracks occur during the first and second crack inspection member moving steps (S210) according to the crack change, the first center initial position adjustment line 1132 is any one of the second measurement lines 1230 on the left side of FIG. coincides with and at the same time the second center initial position adjustment line 1232 coincides with any one of the first measurement lines 1130 on the right side of FIG. 3 .

Conversely, when the crack is narrowed when the first and second crack inspection member moving steps (S210) according to the crack change are performed, the first center initial position adjustment line 1132 is any of the second measurement lines 1230 on the right side of FIG. It coincides with one, and at the same time, the second center initial position adjustment line 1232 coincides with any one of the first measurement lines 1130 on the left side of FIG. 4 .

The capturing image acquisition step ( S220 ) is a step of acquiring an image of the amount of change of the first measurement scale 113 and the second measurement scale 123 through the mobile terminal device H or the like.

The first and second measurement scale image processing step (S230) is an image of the first and second measurement scales 113 and 123 by using the captured images for the amount of change of the first and second measurement scales 113 and 123 It is a step of image processing to recognize the processing region.

That is, the first and second measurement scale image processing steps S230 include the 1-1 image processing area display unit 114 and the 1-2 image processing area display unit 114 respectively displayed on the first outer initial position adjustment lines 1134 on both sides. 115) and the 2-1 image processing region display unit 124 and the 2-2 image processing region display unit 215 respectively displayed on the second outer initial position adjustment lines 1234 on both sides. Because it limits the image processing speed, it is possible to increase the recognition rate.

Furthermore, that is, in the first and second measurement scale image processing step S230, the location information of the first and second measurement scales 113 and 114 is transmitted from the mobile terminal device (H) or the mobile terminal device (H) to the server. Afterwards, the image is processed by an image reading-only app or an image-reading program.

The crack variation recognition step (S240) includes the 1-1 and 1-2 image processing area display units 114 and 115 and the 2-1 and 2-2 image processing area display units in an image reading-only app or an image reading-only program. The region to be image processed is recognized through (124, 125), and the positions of the first and second measurement scales 113 and 114 are read by image processing.

That is, the crack change amount recognition step (S240) is the position of any one of the second measurement lines 1230 coincident with the first center initial position adjustment line 1132, and the second center initial position adjustment line 1232. The crack change amount is recognized in consideration of the position of any one of the first measurement lines 1130 and the interval between the second measurement line 1230 and the first measurement line 1130 .

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can realize that the present invention may be embodied in other specific forms without changing its technical spirit or essential features. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

100: Building crack monitoring device using a crack gauge
110, 120: first and second crack inspection members
111, 121: fixed part
112, 122: extension
113, 123: first and second measurement scales
114, 124: 1-1, 2-1 image processing area display unit
115, 125: 1-2, 2-2 image processing area display unit

Claims (9)

a first crack inspection member having a first measurement scale on one side to check crack progress information and fixed to one side of a wall where cracks occur on the other side;
A second measurement scale is formed on one side of the wall adjacent to the first crack inspection member, and the second measurement scale is formed on one side and the other side has cracks, while the adjacent ends of the first crack inspection member are positioned in a state of overlapping left and right, and the position of the first measurement scale is changed according to the crack change. A second crack inspection member fixed to the other side of the; and
1st and 2nd image processing area display unit provided on one side adjacent to the first and second crack inspection members to respectively display the image processing area during image recognition processing; a building crack monitoring device using a crack gauge, comprising: . According to claim 1,
The first and second measurement scales include first and second initial position adjustment lines formed in the center and on both sides, respectively. A building crack monitoring device using a crack gauge. 3. The method of claim 2,
The first and second initial position adjustment lines are displayed so as to have different lengths and colors from the first and second measurement scales. A building crack monitoring device using a crack gauge. delete According to claim 1,
The first and second image processing area display units are provided at positions adjacent to the lines located on both sides of the first and second initial position adjustment lines, and are located on both sides based on the first and second initial position adjustment lines located in the center. Building crack monitoring device using a crack gauge, characterized in that displaying any one area. 6. The method of claim 5,
The first and second image processing area display unit is a building crack monitoring device using a crack gauge, characterized in that the area recognition and image processing according to the display position of the image recognition mark. According to claim 1,
The first and second crack inspection members are formed in a bent shape, and are transparent or printed to have a color on the bottom. A first step of attaching the first and second crack inspection members to one and the other side of the wall where the crack has occurred so that the first and second initial position adjustment lines among the first and second measurement scales formed on the opposite surfaces coincide with each other;
a second step of moving the first and second crack inspection members according to crack changes;
a third step of acquiring a photographed image in which the positions of the first and second measurement scales are changed according to the movement of the first and second crack inspection members;
a fourth step of recognizing the image processing region of the first and second measurement scales through the first and second image processing region display units positioned at each of the first and second initial positioning lines in the image; and
and a fifth step of recognizing the amount of crack change through the position difference in the image processing area of the first and second measurement scales. 9. The method of claim 8,
In the fourth step, the number of image recognition marks is displayed differently for each position of the first and second image processing region display units, and the crack gauge characterized in that the region recognition and image processing of the first and second measurement scales are performed according to the display positions. A method of monitoring cracks in a building using

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