JP3101945B2 - Detachment detection device for finishing materials such as tiles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for detecting the separation of a finishing material such as a tile.

[0002]

2. Description of the Related Art Conventionally, inspection of peeling phenomena of a finishing material such as a tile is performed by hitting the surface of the finishing material with a hammer and directly hearing the level difference of the generated sound with a ear or using a microphone for analysis. There was a way to do that.

[0003] However, the method based on human percussion as described above requires a work scaffold, a gondola, and the like, which increases the cost of temporary construction, and also requires accurate hitting of tiles. There are problems such as errors in the data, and furthermore, in the diagnosis by the human ear, the data varies due to individual differences and conditions,
Further, when the microphone is used, there is a problem that frequency analysis is required.

Conventionally, a special infrared camera is used to measure the temperature difference between the ground and the surface of a finishing material such as a tile,
There was a system to detect the peeled part.

[0005] However, the method using the infrared camera is as follows.
Due to natural conditions such as sunshine hours, wind, shade, and sunshine, and environmental conditions such as building cooling and heating equipment and exhaust gas, data reproducibility is poor and reliability is poor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to provide a highly reliable system which is continuous almost in real time and is not influenced by natural or environmental conditions. It is an object of the present invention to provide an apparatus for detecting the separation of a finishing material such as a tile, which is economical and does not require a temporary facility such as a work scaffold or a gondola by using a wall robot.

[0007]

A device for detecting the separation of a finishing material such as a tile according to the present invention comprises: a wall working robot capable of moving in a free direction by a method of hanging from a roof of a building;
A low-frequency sensor mounted on the wall working robot and including a sensor body, a vibrator, and a probe; a low-frequency generator that applies a predetermined low frequency to the vibrator; and a wave received by the probe. An apparatus for detecting separation of a finishing material such as a tile, comprising: means for converting a received vibration into an electric signal, and means for processing the electric signal, wherein the vibrator is provided on a surface of the finishing material such as a tile. Convey vibration while rolling
It consists of a metal bearing in which a transmitting element for transmitting low-frequency vibration to the finishing material is attached to the inner member, and the probe is rolled on the surface of the finishing material at a predetermined distance from the vibrator. While receiving vibration, the shear wave generated in the finishing material is reflected at a separation portion between the finishing material and the base material, and a wave receiving element that receives a reflected wave whose frequency and / or amplitude fluctuates is provided as an inner member. It is characterized by comprising a metal bearing attached to the member. Further, the wall working robot is moved by remote control. Further, it is characterized in that the means for converting the electric signal is a piezoelectric element. Still further, the data processing means is a computer. Furthermore, a display for displaying peel detection data by the computer as a graphic image is provided.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a wall work robot, which can be moved in any direction by a method of hanging from a rooftop or the like.

The wall work robot 1 is provided with a distance meter 2 in the X direction and the Y direction so that the position of the robot 1 on the wall surface can be known.

Reference numeral A denotes a low-frequency sensor, which is mainly composed of a sensor body 3, a vibrator 4, and a probe 5, as shown in detail in FIG.

The vibrator 4 is composed of a metal bearing, and transmits vibration to the tile T while rolling on the surface of the tile T. More specifically, a wave transmitting element is attached to an inner member of a metal bearing as the vibrator 4 to give a low frequency of, for example, about 5 to 100 KHz.
As the wave transmitting element, for example, a piezoelectric element is used.

The probe 5 is also formed of a metal bearing, and detects vibration from the tile T while rolling on the surface of the tile T at a predetermined distance from the transducer 4. Note that a piezoelectric element as a wave receiving element is attached to an inner member of a metal bearing as the probe 5.

In FIG. 1, 6 is a low frequency generator, 7 is an A / D converter, 8 is a computer main body, and 8a is a CR.
A display such as T. In FIG. 2, J is a joint, M is a mortar, and K is a skeleton.

Next, an operation of detecting the separation of the tile T by the system of the embodiment will be described. First, the wall working robot 1 is set on the wall to be searched, and the vibrator 4 and the probe 5 of the low-frequency sensor A mounted on the robot 1 are brought into contact with the surface of the tile T.

When the above preparations are completed, the vibrator 4 is caused to vibrate at a low frequency by the low frequency generator 6 to vibrate the tiles T.

Since the tile T is regarded as an elastic body, the vibration from the vibrator 4 propagates in the tile T as an elastic wave. Among the elastic waves, the transverse wave is reflected on the peeling surface H1 between the tile T and the mortar M, and its frequency and amplitude change.

The changed reflected wave is received by the probe 5 and input to the computer 8 via the A / D converter 7. In the computer main body 8, the characteristic component of the vibration oscillated from the vibrator 4 is filtered,
The reflected wave data due to the influence of only the separation surface H1 is obtained.

Since the vibrator 4 and the probe 5 continuously transmit and receive waves while rolling on the surface of the tile T, the reflected wave data is displayed on the display 8a as a graphic image (pattern) of the vibration signal. ).

Further, a part of the transverse wave is generated by the mortar M
The reflected wave is also received by the probe 5 at the same time, and is processed together with the data.

[0020]

As described above, the vibration generated from the vibrator is affected only by the peeling state of the tile or the like. As a result, an extremely accurate change in vibration is detected by the probe, and the peeling state of the tile or the like is detected. It can be detected with high accuracy. 2) Since the transverse wave of the elastic wave is used, the separation depth can be detected and highly reliable data can be collected. 3) Since a metal bearing is used as a vibration medium, data can be continuously collected. 4) Since the data can be image-processed in a short time through the A / D converter, the result of the peeling determination corresponding to the measurement position can be displayed on the display almost in real time.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an embodiment of the system of the present invention.

FIG. 2 is an explanatory diagram of a low-frequency sensor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wall work robot 2 Distance meter 3 Sensor main body 4 Transducer 5 Probe 6 Low frequency generator 7 A / D converter 8 Computer main body 8a Display A Low frequency sensor H1 Peeling surface H2 Peeling surface J Joint K Body M Mortar T tile

Claims (5)

(57) [Claims] 1. A wall working robot (1) that can move in a free direction by a method of hanging from a roof of a building or the like, a sensor body (3) mounted on the wall working robot (1), and a vibrator (4). ) And a probe (5), a low-frequency generator (6) for applying a predetermined low frequency to the vibrator (4), and a wave received by the probe (5). A device for converting the received wave vibration into an electrical signal, and a device for detecting the separation of a finishing material such as a tile, the device comprising data processing means for the electrical signal.
A metal bearing in which a transmitting element for transmitting vibration while rolling on the surface of a finishing material such as a tile and transmitting low-frequency vibration to the finishing material is attached to an inner member; However, while detecting a vibration while rolling on the surface of the finishing material at a predetermined interval from the vibrator (4), a transverse wave generated in the finishing material causes a peeling portion between the finishing material and the base material. An apparatus for detecting the separation of a finishing material such as a tile, comprising a metal bearing in which a wave receiving element for receiving a reflected wave of which frequency and / or amplitude fluctuates and is reflected by an inner member is provided. 2. The peeling detection device for finishing materials such as tiles according to claim 1, wherein the wall working robot (1) moves by remote control. 3. The apparatus according to claim 1, wherein the means for converting into an electric signal is a piezoelectric element. 4. The peeling detection device for a finished material such as a tile according to claim 1, wherein the data processing means is a computer. 5. A display (8) for displaying peeling detection data by the computer as a graphic image.
The peeling detection device for a finishing material such as a tile according to claim 4, wherein a) is provided.