JPH08178905A - Diagnosis of outer wall - Google Patents

Abstract

PURPOSE: To automatically detect the deterioration degree of the outer wall of building on the basis of the change of a striking sound and to observe the surface of the outer wall with a video camera at the time of the measurement of the wall surface. CONSTITUTION: A liftable moving truck 5 suspended through a wire 4 is raised and lowered and a wall surface 2A is measured by striking the wall surface 2A with respective wall surface striking means 42, 42A of the liftable moving truck 5 and observed at the time of this measurement with a video camera.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer wall diagnostic method,
In particular, the present invention relates to a new improvement for automatically detecting the degree of deterioration of the outer wall of a building by changing the tapping sound and observing the wall surface with a video camera when measuring the wall surface.

[0002]

2. Description of the Related Art As an outer wall diagnostic method of this type that has been conventionally used, in general, an operator mounts on a gondola suspended in the outer wall of a building and manually strikes the outer wall with an outer wall striking rod to sense the operator. The degree of deterioration of the outer wall was detected by.

[0003]

Since the conventional method for diagnosing the outer wall is constructed as described above, for example, in the case of a high-rise building, the wire that suspends the worker sways from side to side and is extremely dangerous when the wind is strong. It was a difficult task, and in the case of a huge building, it was sometimes impossible.

The present invention has been made to solve the above problems, and in particular, the degree of deterioration of the outer wall of a building is automatically detected by a change in tapping sound, and a video camera is used at the time of measurement. It is an object of the present invention to provide an outer wall diagnostic method for observing a wall surface.

[0005]

According to the outer wall diagnosis method of the present invention, an elevating and lowering trolley suspended from a roof moving trolley provided at an upper part of a building is lifted up and down, and the outer and lower trolleys are installed on the lifting and lowering trolley. While measuring the wall surface by striking the wall surface of the building by the wall surface striking means provided,
It is a method of observing the wall surface with a video camera during the measurement.

More specifically, there is a method in which an image from the video camera is recorded and then reproduced, and at the time of reproduction, a defective portion on the wall surface is identified.

[0007]

In the outer wall diagnostic method according to the present invention, the wall striking means in the elevating traveling carriage suspended from the roof traveling carriage traversing the roof of the building through the arm and the wire strikes the wall surface of the building. By detecting the tapping sound at the time as a tapping sound with a microphone and measuring the wall surface, and by calculating the crest factor of the vibration waveform of the detected tapping sound, the deteriorated portion of the wall surface can be detected by the tapping sound. . Further, when measuring the wall surface, the wall surface can be observed with a video camera, and the defective portion of the wall surface can be visually confirmed on the monitor screen.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the outer wall diagnostic method according to the present invention will be described in detail below with reference to the drawings. In FIG. 1, reference numeral 1 is a rooftop moving carriage configured to be able to traverse a rooftop 2a of a building 2 through a rooftop rail 3 for a predetermined distance (2 m in this embodiment). The pair of wires 4 suspended from 1 is provided with a vertically movable carriage 5 which is vertically movable.

A computer 8 consisting of a power supply panel 7 and a personal computer is provided at a ground position 6 of the building 2, and a power line 7a from the power supply panel 7 is connected to a lift truck 5 and connected to the computer 8. Is the first wireless antenna 9
An operation panel 10 for a remote controller having is connected by a connection cord 11. Therefore, various data, which will be described later, received by the first wireless antenna 9 is input to the computer 8 and displayed on the screen 8a.

A head tree 1 formed on the roof 2a of the building 2
The rail 3 is adjustably provided on the roof 2 via a fixing mechanism portion 13, and two pairs of guide wheels 1a, 1 of the rooftop moving carriage 1 are provided.
b and the drive wheel 1c are in contact with the rail 3, and the wire 4 is connected to the tip of an arm 14 that is provided in the rooftop carriage 1 so as to be able to move in and out. The rail 3 is configured to be connectable in units of 2 m, and is configured to cover one side of the width of the building 2 by moving the rail 3 one after another.

The rooftop trolley 1 is constructed as shown in FIG. 5, and receives power from the power line 7b and also has a rooftop radio 20 having a second radio antenna 20a.
Is connected to the rooftop CPU 21. The rooftop CP
The arm entry / exit command 21a from U21 is input to the arm driver 23 of the arm motor 22, and the arm motor 22 is passed through the arm speed reducer 24 to cause the arm 1 to move.
4 is connected to a feed screw 25 which is screwed. Therefore,
The rotation of the feed screw 25 allows the arm 14 to move in and out along the direction of arrow A.

A traverse command 21 from the rooftop CPU 21
b is input to the traverse driver 27 of the traverse motor 26, and the traverse motor 26 is connected to the roof wheel 1c through the traverse speed reducer 28 and is configured to move on the rail 3. The output of the traverse sensor 30 provided on the rooftop trolley 1 is fed back to the traverse driver 27 and the rooftop CPU 21 as a position signal 31.

Next, the power line 7a from the power supply panel 7 is connected to the lift truck 5, and the operating CPU 31 of the operating panel 10 connected to the computer 8 has the wireless antenna 9 for operation. With 32 connected,
A switch operation unit 33 including switches for an automatic inspection command 33a, a lift truck moving direction 33b, a roof truck moving direction 33c, a detection mode 33d, a tap sound 33e, a fan on / off 33f, and a marking 33g is connected to the operating CPU 31. .

The operation CPU 31 is connected to an address display section 35 for displaying the X and Y addresses of tiles on the wall surface 2A of the building 2 and a switch operation section 35A for inputting tile dimensions and joint dimensions. The hammering determination detection signal 36 and the sound diagnostic data 37 are output, and a warning unit 39 including a lamp or a buzzer for notifying the dangerous position 38 is provided. The computer 8 has a printer 8A for printing a diagnostic map of the wall surface 2A.
Is connected.

Next, the lifting / moving carriage 5 is constructed as shown in FIG. That is, the power line 7a is
An elevating driver 41 of the elevating motor 40, and upper and lower wall surface striking means 42, 42 constituting the wall surface striking means 42B.
A wall driving driver 44 of the wall driving motor 43 of A,
A traverse movement driver 47 of a traverse movement motor 46 of a traverse movement means 45 for traversing the wall surface striking means 42,
The fan motor 49 of the fan 48 and the pair of moving wheels 5
Each of them is connected to an active wheel motor 51 for freely changing the direction of 0. The driven wheel 50A is configured to follow the direction of the active wheel 50.

The elevating motor 40 is used for the elevating speed reducer 5.
2 is connected to a take-up pulley 53 (constituting an elevating / lowering drive means 53A) that engages with the wire 4 via 2, and the wire 4 and the take-up pulley 53 are moved relative to each other by the rotation of the take-up pulley 53, so that the hoisting / moving carriage 5 is Is moved up and down via the wire 4. The pair of gap sensors 54 detects the state of riding on the unevenness of the wall surface 2A, and the pair of first tactile sensors 55, 56 provided on the upper portion 5a and the lower portion 5b of the lifting carriage 5 are It is possible to detect the upper limit and the lower limit when the hoisting and moving carriage 5 moves up and down. Further, eight second tactile sensors 55A provided around the carriage 5 are configured to detect the convex portion of the wall surface 2A.

The wall driving motor 43 is connected to a columnar cam 59 for driving the hammer 58 via a wall surface reducing gear 57, and the rotation of the columnar cam 59 causes the hammer 58 to repeatedly strike the wall surface 2A. The striking sound at that time is detected by the microphone 60 as a detected striking sound 60a.

As shown in FIG. 8, the traverse moving means 45 is integrally formed with the wall surface striking means 42, and the traverse moving motor 46 has a traverse reciprocating driving means via a traverse moving speed reducer 61. It is connected to a pinion 63 that meshes with a rack 64 of 62, and the wall driving means 42 can be moved laterally by 50 cm by the rotation of this pinion 63.

A lifting / lowering command 72a of a computer 72 connected to the lifting / lowering radios 70, 71 provided on the lifting / lowering carriage 5 is input to the lifting / lowering driver 41, and a lifting / holding brake release command 72b is sent via a relay 72c. The fan on / off command 72d is input to the fan motor 49, the hammer striking command 72e is input to the wall surface striking driver 44, the traverse command 72f is input to the traverse movement driver 47, and the steering direction is input. The command 72g is transmitted to the active wheel motor 5 via the relay 72h.
1 is input to control each operation, and the vertical moving carriage 5
It is possible to freely control the raising and lowering, the hammering of the hammer 60 of the wall striking means 42, and the traverse operation.

In the computer for the lift truck, the lifting joint and the position signal 54a from the gap sensor 54, the traverse position signal 47a from the encoder of the traverse movement motor 46, and the hitting sound 60a from the microphone 60.
Is a wall surface deterioration determination signal 60b in which the crest factor of the vibration waveform is calculated by the hammering sound diagnosis and analysis device 60A and the degree of deterioration of the tile of the wall surface 2A is analyzed, and the uneven portion climb detection from the ascending / descending joint and the position signal 54a. Signal 54aA, the second
Dangerous position and projection detection signal 55A from tactile sensor 55A
a is input, and a steering direction signal 50a indicating the steering direction from the active wheel 50 is also input. The above-described hammering sound diagnosis and analysis device 60A includes a preamplifier 60B, a peak hold circuit 60C, an effective value measurement circuit 60D, a division circuit 60E, and a determination circuit 60F. As described above, a well-known configuration is adopted as an example. A video camera 600 (shown in FIGS. 7 and 8), which is an ultra-small CCD camera, is arranged on the elevator carriage 5 so as to observe the wall surface 2A.
A cable 601 of 0 is connected to a video tape recorder 602 with a liquid crystal monitor connected to the power supply 7 as shown in FIG.

Next, in the above-mentioned configuration, the wall surface 2 is actually used.
A case where the degree of deterioration of A is detected and the result of the detection is displayed on the computer 8 as a wall surface diagnostic map will be described. First, the rooftop trolley 1 is moved to the building 2 as shown in FIG.
In the state of being hung from the rooftop carriage 1 by the wire 4, the power supply board 7 is turned on, and the computer 8, the operation board 10 and the lifting carriage 5 are turned on. To do.

In the above-described state, the initial setting for automatic inspection is performed by inputting the tile size and joint size of the wall surface 2A via the switch operating section 35A. When the take-up pulley 53 of the lifting / moving carriage 5 is operated by a wireless command from the operation panel 10 to move the lifting / lowering carriage 5 up and down to determine and stop the inspection position and set the zero position of the XY position, the operation is performed. The XY position of the wall surface 2A from the zero position is displayed on the display unit 35 of the board 10 in Cm units. In this state, the wall moving means 42, 42A are passed through the transverse moving means 62.
By operating the wall surface striking means 42, 42
The hammering sound of the wall surface 2A struck by the hammer 58 of A is detected as a detected hammering sound by the microphone 60, and the crest factor of the vibration waveform of the detected hammering sound is calculated and analyzed by the hammering sound analysis device 60A, and the analysis is performed. The detected result is wirelessly sent to the computer 8 as the measurement result of the wall surface 2A via the elevator radio 71, and the detection result is YES (circle mark) on the screen 8a, N.
It is displayed as three types of signals: O (cross mark) and ambiguous (triangle mark). The three signals are also displayed on the image taken by the video camera 600 that is being picked up at the same time, and it is possible to confirm which part of the wall surface 2A is being played at the same time and when the tape is played back by the image of the NO portion which is a defective portion. Therefore, the wall striking means 42, 42A in the lifting / moving carriage 5
In order to traverse 0.5 m, if the length of the rail 3 of the rooftop trolley 1 is 2 m, by repeating traverse 4 times per 2 m span of the rail 3, the wall surface 2 with a span of 2 m
A can be detected. Further, by moving the rails 3 one after another according to the width of the building 2 and repeating the same work as described above, the entire surface of the wall surface 2A can be detected. In addition, the tile and joint size, the elevation joint, the position signal 54a, and the traverse position signal 47a are used to determine the tile XY.
The tile X address 35a and the tile Y address 35b are input to the computer 8 and the map is displayed on the display unit 8a. During the above-mentioned work, by driving the fan 48 of the lifting / moving carriage 5,
Due to the exhaust force, that is, the thrust, the vertical moving carriage 5 itself is constantly pressed against the wall surface 2A side, and it is possible to reduce the influence of wind or the like and maintain a stable working posture.

The above-mentioned work is performed by the window frame 10 of the window in FIG.
The case of only the wall surface 2A in which 0 is not formed has been described, but the case of detecting the position of the window frame 100 as the protruding portion will be described next. When detecting the vertically moving carriage 5 while descending from the position directly above the first to third window frames 100 in FIG. 4, and the vertically moving carriage 5 corresponds to the first window frame 100, the first window frame 100 Height from wall 2A is 30mm
In the case of less than, as shown in FIG. 9, since the height of the active wheel 50 and the driven wheel 50A is 30 mm, the upper and lower regions of the first and second window frames 100 and 101 must be completely detected. You can

However, The height of the third window frame 102 is 3
When the height is 0 mm or more, the lower end 5A of the lifting / lowering carriage 5 abuts on the upper portion of the third window frame 102, but the wall striking means 42, 4 are used.
Since 2A is located on the upper side and the lower side of each wheel 50, 50A, as shown in FIG. 4, the dead zone 110 is left in the lower wall surface striking means 42A.

Next, the arm 14 of the roof carriage 1 is extended to lower the lifting carriage 5 while separating it from the wall surface 2A, crossing over the third window frame 102 and passing therethrough.
When the arm 14 is positioned at the lower part of the window frame 102 and the arm 14 is contracted to the original state, detection is performed by the upper wall surface striking means 42 of the vertically movable carriage 5 except for the dead zone 110a directly below the third window frame 102. You can Note that the signal processing of the tapping sound is not limited to the above-described calculation of the crest factor, and other means such as frequency analysis can be used. Further, when the vertically movable carriage 5 gets over the projecting portion of the window frame 102 or the like, it can easily get over via the taper portion 300 formed at the lower end portion thereof. Further, when the hoisting / moving carriage 5 gets over the projecting portion, the wall surface striking means 4 are provided.
The supply of the hammer striking command 72e to the wall surface striking driver 44 is stopped so as to stop the measurement operation of the wall surface 2A by tapping 2,42A.

Next, the case of performing the measurement operation of the wall surface 2A by using the above-described lifting / moving carriage 5 will be described in more detail.
Reference numerals 200 to 204 in the state of FIG.
A shows a state in which the hoisting and moving dolly 5 moves upward while performing a measurement operation, and sequentially shows states in which the hoisting and moving dolly 5 is moving upward from reference numerals 200 to 204. First, in the state of reference numeral 200, the lower wall surface striking means 42A is at the Y1 position and the upper wall surface striking means 42 is at the Y2 position.
The transverse tapping sound measurement operation is performed alternately from the right to the left in a non-simultaneous state with a time difference. Also, Y1
And Y2 indicate the central portion in the height direction of each tile, and when the lower wall surface striking means 42A and the upper wall surface striking means 42 do not face Y1 and Y2, they can be made to face each other by the elevation control.

After that, the hoisting and moving carriage 5 is lifted by a stroke in the height direction of one wall tile, and the respective wall striking means 42, 42A are lifted and controlled so as to face the center of the next tile. From the right to the right, the transverse tapping sound measurement operations are alternately performed in a non-simultaneous state with a time difference. The above measurement operation is repeated until the lower wall surface striking means 42A reaches the position of Y2, and thereafter, as in the state of reference numeral 201,
The window frame 10 is operated by measuring and operating only the upper wall surface striking means 42A.
The measurement movement of the lower part of the protrusion consisting of 0 is performed and repeated until the upper wall surface striking means 42 reaches the position Y3.

Next, in a section from the position of the upper wall surface striking means 42 to the position of the lower wall surface striking means 42A to the position Y4, two pairs of the distance between the wall surface 2A and the lift moving carriage 5 are measured. The gap sensor 54 issues a non-measurement state command to stop the fan 48.

Next, when the lower wall surface striking means 42A reaches the position Y4 as shown by the reference numeral 203, a measurement operation is performed from the lower wall surface striking means 42, and then the upper wall surface striking means 42 moves to Y5. The elevation operation is controlled so as to face the position, and the measurement operation is performed. After that, the traverse striking sound is measured while the hoisting and moving carriage 5 is vertically controlled by the stroke in the height direction for one wall tile, and the above-described measurement operation is performed until the lower wall surface striking means 42A reaches the position of Y5. Repeatedly, thereafter, only the upper wall surface striking means 42 measures the traverse hammering sound. After that, the above measurement operation is repeated until it rises and the upper wall surface striking means 42 reaches the position of Y6, and then the wall surface 2A is laterally moved to the adjacent position and lowered to perform the above measurement operation. is there. In addition, each wall striking means 42,
When the position of the same wall surface 2A is detected, the respective data measured by 42A are processed in the computer 8 so that only one of them is processed, and the respective data are processed in association with each other to process the entire wall surface 2A. Can be measured.

[0030]

Since the outer wall diagnostic method according to the present invention is configured as described above, the following effects can be obtained. That is, since the wire that moves laterally by the rooftop carriage is used as a guide, the elevating and lowering carriage having the wall striking means ascends and descends, and the degree of deterioration of the wall surface is detected from the striking sound of the wall striking means. The detection result can be automatically displayed on the display unit of the computer without going up, observing the state of the wall surface with a video camera,
The state of the measured wall surface can be confirmed at the same time as the measurement and by reproducing the recording tape after the measurement. Therefore, it is possible to extremely easily confirm the repaired point at the time of actual repair after measurement.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a state in which a diagnosis is performed using an outer wall diagnostic device according to the present invention.

FIG. 2 is a perspective view showing a main part of FIG.

FIG. 3 is a cross-sectional view showing a main part of FIG.

FIG. 4 is a configuration diagram showing another diagnostic state of FIG. 1.

FIG. 5 is a block diagram showing a roof trolley.

FIG. 6 is a block diagram showing a main part of FIG.

FIG. 7 is a block diagram showing an elevating and moving carriage.

FIG. 8 is a plan view of an up-and-down moving carriage.

9 is a right side view of FIG.

FIG. 10 is a bottom view of FIG.

FIG. 11 is a configuration diagram showing a measurement operation.

[Explanation of symbols]

 1 Rooftop moving truck 2 Building 2A Wall surface 4 Wire 5 Lifting truck 5 Computer 8a Screen 8A Printer 14 Arm 42, 42A Wall striking means 48 Fan 50 Active wheel 50A Driven wheel 53A Lifting drive means 60 Microphone 62 Traverse reciprocating drive means 100 Projection (Window frame) 300 Tapered part 600 Video camera

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Atsuhiro Doyama 4-640 Shimoseido, Kiyose-shi, Tokyo Inside Obayashi Technical Research Institute Co., Ltd.

Claims (2)

[Claims] 1. A lift truck (5) suspended from a roof carriage (1) provided on an upper part of a building (2) via a wire (4) is lifted to raise and lower the lift truck (5). ) Is measured by striking the wall surface (2A) of the building (2) by the wall surface striking means (42B) provided in (1), and the wall surface (2A) is measured by the video camera (600). An outer wall diagnostic method characterized by observing 2A). 2. The image from the video camera (600) is
The outer wall diagnostic method according to claim 1, wherein the defective portion of the wall surface (2A) is identified during the reproduction after the recording.