KR20190115805A - A Diagnostic System for Wind Power Generator Based on Wireless Communication - Google Patents

Abstract

The present invention relates to a condition measuring system for a wind power generator blade, and more specifically, relates to the condition measuring system for the wind power generator blade based on a wireless communication wherein a surface wave sensor device is controlled by a separate monitoring device connected wirelessly while quickly detecting various defects of the blade through the surface wave sensor device in close contact with the blade, thereby capable of safely and conveniently detecting a blade defect even at remote locations by allowing the information measured by the surface wave sensor device to be wirelessly transmitted to the monitoring device.

Description

A Diagnostic System for Wind Power Generator Based on Wireless Communication

The present invention relates to a wind turbine blade condition measurement system, and more particularly, the surface wave sensor device is connected to a separate monitoring device connected wirelessly, while allowing the rapid detection of various defects of the blade through the surface wave sensor device in close contact with the blade. The present invention relates to a wireless communication-based wind turbine blade condition measurement system, which is controlled by the surface wave sensor device and wirelessly transmits information to a monitoring device, thereby enabling safe and convenient detection of blade defects even at a remote location.

A wind power generator is a device that produces electricity by converting wind kinetic energy into mechanical energy. It is a tower installed on land or at sea, and a nacelle with a generator installed to rotate on top of the tower. It is installed in the nacelle to drive the generator, and includes a rotor having a plurality of blades. The dual blades have the highest frequency of failure and have the most important influence on the wind turbine's power generation efficiency. Component. Therefore, in order to prevent deterioration of power generation efficiency due to contamination and breakage of the blade, operations such as cleaning and maintenance should be performed, and accurate condition diagnosis of the blade is required before performing the above operation. However, since the wind turbine is a large structure, there is a lot of difficulty in diagnosing the state of the blade. Recently, a system capable of automatically diagnosing the state of the blade has been developed, as in the following patent document.

<Patent Documents>

Korean Patent Publication No. 10-2014-0038149 (2014. 03. 28. published) "Structural integrity monitoring device of a fiber reinforced composite containing conductive nanomaterials, its monitoring method and manufacturing method, and wind power generation including conductive nanomaterials Structural health monitoring device for blades and its manufacturing method "

However, the conventional blade diagnosis system diagnoses the blade state by placing a sensor inside the blade and sensing the physical change of the blade, so that diagnosis is possible only after a certain deformation occurs in the blade, making it difficult to diagnose the condition at the early stage of failure. Irrespective of the physical deformation of the blade, there is a problem in that corrosion, foreign matter adhesion, etc., generated on the surface of the blade cannot be diagnosed.

The present invention has been made to solve the above problems,

It is an object of the present invention to provide a wind turbine blade condition measurement system that enables a safe and convenient detection of blade defects even in a remote location while quickly detecting various defects of the blade through a surface wave sensor device in close contact with the blade.

It is an object of the present invention to provide a wind turbine blade condition measuring system that enables a quick and economical blade condition measurement.

An object of the present invention is to provide a wind turbine blade state measurement system that can quickly cope with the abnormality of the surface wave sensor device.

It is an object of the present invention to provide a wind turbine blade condition measurement system that enables a quick and easy identification and inspection of blade defects.

The present invention is implemented by the embodiment having the following configuration to achieve the above object.

According to an embodiment of the present invention, a wind turbine blade state measuring system according to the present invention includes a surface wave sensor device in close contact with a wind turbine blade and transmitting and receiving surface waves; And controlling the operation of the surface wave sensor device and monitoring the blade using surface wave signal information received from the surface wave sensor device. The surface wave sensor device and the monitoring device may include a control signal and a wireless signal. And transmit and receive surface wave signal information.

According to another embodiment of the present invention, in the wind turbine blade state measurement system according to the present invention, the surface wave sensor device is a surface wave generator for generating a surface wave that is transferred along the blade surface by receiving an electrical signal, the surface wave generation A surface wave receiver configured to receive a surface wave generated by the surface wave generator and transferred along the blade surface to generate an electrical signal, a wireless communication unit that transmits and receives a wireless signal to and from the monitoring device, and the monitoring device And a control unit for controlling the operation of the surface wave sensor device according to a control signal transmitted from the surface wave generation unit, wherein the surface wave generation unit includes a low frequency generation unit generating low frequency surface waves and a high frequency generation unit generating high frequency surface waves, and receiving the surface wave receiving unit. Is a low frequency generated by the low frequency generation unit And low-frequency bride receiving a wave of, characterized in that it comprises a high-frequency bride for receiving the high frequency wave generated by the high frequency generation section.

According to another embodiment of the present invention, in the wind turbine blade state measuring system according to the present invention, the monitoring device is a signal control unit for controlling the generation of surface waves by the surface wave generator and the transmission from the surface wave sensor device A defect analysis unit for detecting a defect in the blade by analyzing a signal of the surface wave receiver, and a communication unit for transmitting a radio signal with the surface wave sensor device, wherein the control unit is a surface wave generated by the surface wave generator in accordance with an operation of the monitoring device. And a signal generation module for generating a signal, and a generation signal transmission module for transmitting an electric signal generated from the surface wave receiver to a monitoring device.

According to another embodiment of the present invention, in the wind turbine blade state measuring system according to the present invention, the signal control unit is an operation sensor selection module for selecting a surface wave generator to operate from a plurality of surface wave generators installed on the blade, the blade An error is caused by a zone setting module for classifying a zone into a zone including a plurality of surface wave generators, a low frequency generation module for each zone to operate only one low frequency generation unit for each zone, and a low frequency generated by the low frequency generation module for each zone. It characterized in that it comprises a high frequency generation zone designation module for operating the high frequency generator only for the detected zone.

According to another embodiment of the present invention, in the wind turbine blade state measurement system according to the present invention, the surface wave receiver is a piezoelectric plate for generating an electrical signal by the stress caused by the surface wave generated by the surface wave generator, and And an electrode for transmitting the electrical signal generated by the piezoelectric plate to the control unit, wherein the piezoelectric plate of the low frequency unit and the high frequency receiver has a natural frequency equal to the high frequency generated from the low frequency and high frequency generators, respectively. It is characterized by having.

According to still another embodiment of the present invention, in the wind turbine blade state measuring system according to the present invention, the surface wave generator generates surface waves only by the low frequency generator, and the low frequency receiver and the high frequency receiver comprise the low frequency generator. It is characterized in that for receiving the surface wave generated by the electric signal generated by the transfer to the control unit.

According to another embodiment of the present invention, in the wind turbine blade state measuring system according to the present invention, the defect analysis unit includes a reception signal analysis unit for analyzing the amplitude and phase of the electrical signal generated for each of the plurality of surface wave receiver; A basic signal storage unit for each receiver, which analyzes and stores electrical signals generated at each surface wave receiver in a steady state without blade defects and electrical signals generated at each surface wave receiver according to the type of blade defects; And a defect specifying unit for specifying a location and type of a defect of the blade by comparing the amplitude and phase of the electrical signal analyzed by the reception signal analyzer and the basic signal storage unit for each receiver. Normal amplitude information storage module that stores amplitude information of electric signal generated through each surface wave receiver in the normal state without defect, and phase information of electric signal generated through each surface wave receiver in the normal state without blade defect. Normal phase information storage module, a fault-specific amplitude information storage module for storing amplitude information of an electrical signal generated by each surface wave receiver according to the type and size of blade defects, and each surface wave receiver according to the type and size of blade defects. And a phase information storage module for each defect that stores phase information of an electrical signal generated through the above. Also certain portions amplitude information to be analyzed by the receiving unit by amplitude analysis module and the top module beojang amplitude information and fault information by the amplitude stored by the receiving amplitude comparing amplitude information that is stored by the module and the comparison module; A phase-specific phase comparison module for comparing the phase information analyzed by the phase-specific phase analysis module with the phase information stored by the normal phase information storage module and the defect-specific phase information storage module; A defect type specifying module specifying a type of a defect according to a result compared by the receiver comparison amplitude comparison module and the reception comparison phase comparison module; And a defect location specifying module for identifying the position of the defect by identifying the surface wave receiver receiving the defect specified by the defect type specifying module.

According to another embodiment of the present invention, in the wind turbine blade state measurement system according to the present invention, the defect analysis unit to determine the defect to increase the accuracy of the defect detection and to detect the failure of the surface wave sensor device through the occurrence of the surface wave repeatedly And a defect comparison module comprising: a repeating measurement module for repeatedly generating surface waves a plurality of times through a surface wave generator at a position where a defect is detected, and a defect comparison module for comparing types and degrees of defects detected by surface waves generated a plurality of times; And a defect determination module for determining a corresponding defect when the type and the degree of the defects to be compared coincide more than a predetermined number of times, and re-measurement to automatically generate a surface wave automatically after a predetermined time when the defect is not determined in the defect determination module. The module and the re-measurement module detect abnormalities, but defects are not confirmed. Wu characterized in that it comprises a diagnosis module informing the diagnosis of failure of the wave sensor apparatus.

According to another embodiment of the present invention, in the wind turbine blade state measuring system according to the present invention, the monitoring device includes a screen display unit for displaying an electric signal generated by the surface wave receiver on the screen, the screen display unit A receiver-specific signal display unit for displaying electrical signals generated by a plurality of surface wave receivers, and a defect information display unit for displaying defect information of each surface wave receiver detected by the defect determination; A normal signal display module displaying an electric signal generated by each surface wave receiver in a normal state on a screen; A reception signal display module for displaying an electric signal generated by each surface wave receiver on a screen during actual measurement; A defect signal display module displaying an electric signal generated by each surface wave receiver on a screen according to the type and size of the defect; And a signal synchronization module for synchronizing the signals displayed on the screen by the normal signal display module, the reception signal display module, and the defect signal display module.

According to another embodiment of the present invention, in the wind turbine blade state measuring system according to the present invention, the monitoring device is a defect display unit for emitting the surface wave sensor device according to the defect information of the blade analyzed by the defect analysis unit The surface wave sensor device includes a light emitting part which is formed in each surface wave receiving unit and emits light according to a control signal transmitted by the defect display unit, wherein the defect display unit detects the detected surface wave receiving unit in which the defect is generated by the defect analyzing unit. Defective light emitting module to turn on the light emitting part, Defective light emitting color control module to adjust the color to be lit by the defective light emitting module according to the type of defect, Illumination control by degree to adjust the illuminance to light according to the degree of the defect It characterized in that it comprises a module.

The present invention can obtain the following effects by the configuration, combination, and use relationship described above with the present embodiment.

According to the present invention, the surface wave sensor device is controlled by a separate monitoring device connected wirelessly while the surface wave sensor device is quickly detected through various surface wave sensor devices in close contact with the blade, and the information measured by the surface wave sensor device is wireless. By being transmitted to the monitoring device, there is an effect that enables the safe and convenient detection of blade defects even at a remote location.

The present invention divides the blade into a plurality of zones having a plurality of surface wave generators to generate a low frequency only through one low frequency generator for each zone to diagnose an approximate abnormality, and to generate a high frequency only in a zone where the abnormality is diagnosed by the low frequency. By doing so, there is an effect of enabling a quick and economical blade condition measurement.

According to the present invention, the low frequency generating unit generates only low frequency surface waves, and the low frequency generating unit and the high frequency receiving unit receive low frequencies generated by the low frequency generating unit to generate an electrical signal, thereby quickly and economically detecting blade defects. It has the effect of making it possible.

The present invention stores the amplitude and phase of the normal electrical signal generated in the absence of a defect in each surface wave receiver, the type and size of the electrical signal generated according to the type of defect, and compares the amplitude and phase of the actual measured electrical signal. In addition, there is an effect that enables the specification of the type, size, and location of the defect.

The present invention enables accurate detection of defects through repetitive generation and measurement of surface waves, and it is possible to quickly diagnose even a failure of a surface wave sensor device by notifying a failure when a signal abnormality occurs continuously even if it is not a defect. It is effective to cope.

The present invention has the effect of enabling the verification and confirmation of defects by displaying a normal signal, a received signal, and a signal for each defect on each surface wave receiver on a screen to compare the signals.

The present invention provides a light emitting unit for each surface wave receiver to enable lighting of different colors through the light emitting unit according to whether or not a defect occurs, and the type and extent of the defect, so that it is possible to quickly and easily identify and inspect the defect of the blade. It is effective.

1 is a block diagram of a wind turbine blade state measurement system according to an embodiment of the present invention
2 is a reference diagram for explaining the surface wave generator and the surface wave receiver of FIG.
3 is a reference diagram for explaining an installation state of the surface wave generator and the surface wave receiver of FIG.
4 is a reference diagram for explaining a surface wave generator and a surface wave receiver according to another embodiment of the present invention;
5 and 6 are reference diagrams for explaining the diagnosis process of the cracks generated in the blade by FIG.
7 is a block diagram illustrating a configuration of a controller of FIG. 1.
8 is a block diagram showing the configuration of the signal control unit of FIG.
9 is a block diagram illustrating a configuration of a defect analysis unit of FIG. 1.
10 is a block diagram illustrating a configuration of a screen display unit of FIG. 1.
11 is a block diagram showing a configuration of a defect display unit of FIG.
12 is a configuration diagram of a wind turbine blade state measuring system according to another embodiment of the present invention.
Figure 13 is a perspective view of the coupling mobile device of Figure 12
14 is a front view showing the configuration of the fixed engagement support of FIG.
15 is a front view showing the configuration of the movable coupling support of FIG.
16 is a reference diagram for explaining the operating state of the coupling support;
17 is a side view showing a coupling state of the second compression unit and the surface wave sensor device in the second coupling unit;
18 is a perspective view for explaining the configuration of the sensor moving unit;
19 is a reference diagram for explaining an operating state by the sensor moving unit.
20 is a block diagram illustrating a configuration of a controller of FIG. 13.
21 is a reference diagram schematically showing an operating state of the coupling support and the surface wave sensor device of FIG.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of a wireless communication-based wind turbine blade state measurement system according to the present invention will be described in detail. In the following description of the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Throughout the specification, when a part is said to "include" any component, which means that it may further include other components, except to exclude other components unless specifically stated otherwise, also described in the specification The terms "... unit", "... module" and the like refer to a unit for processing at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software.

1 to 11, the wind turbine blade state measuring system according to an exemplary embodiment of the present invention is in close contact with the wind turbine blade 100 to transmit and receive surface waves. A surface wave sensor device 1; And a monitoring device 3 that controls the operation of the surface wave sensor device 1 and monitors the blade 100 using the surface wave signal information received from the surface wave sensor device 1.

The wind generator blade state measurement system enables the surface wave sensor device 1 to monitor the defects of the blade 100 accurately and quickly by the surface wave sensor device 1 in close contact with the blade 100. By wirelessly controlling the signal by the surface wave sensor device (1) and the measurement by the surface wave sensor device (1) can be wirelessly transmitted to the monitoring device (3), it is possible to easily identify the defect of the blade (100) in the remote, through which the blade ( 100) can be managed quickly and easily.

The surface wave sensor device 1 is configured to be in close contact with the blade 100 to transmit and receive surface waves, the surface wave generator 11 and the surface wave generator 11 for generating surface waves that are transported along the surface of the blade 100. It may include a surface wave receiving unit 12 for generating the electrical signal by receiving the surface wave is generated and transferred. The surface wave generator 11 and the surface wave receiver 12 may be formed in plural so as to be spaced apart at regular intervals along the blade 100, and are formed to face each other so that surface waves generated by the surface wave generator 11 may be surface wave receivers ( 12) to receive it. In particular, the surface wave generator 11 and the surface wave receiver 12 of the present invention are the low frequency generator 11a and the high frequency generator 11b, the low frequency receiver 12a and the high frequency capable of generating and receiving low and high frequencies, respectively. The bride 12b is included to enable efficient detection of defects that minimize the use of electricity. Detailed description thereof will be described later. The electrical signal generated by the surface wave receiver 12 is wirelessly transmitted to the monitoring device 3 and used to detect a defect of the blade 100, and emits a position where a defect is generated depending on whether a defect occurs. It can be made easy to grasp. To this end, the surface wave sensor device 1 is a wireless communication unit 13 for transmitting and receiving a wireless signal with the monitoring device 3, the control unit 14 for controlling the operation and transmission and reception of signals of the surface wave sensor device 1, whether there is a defect The light emitting unit 15 to emit light may be included. Therefore, the surface wave sensor device 1 according to the present invention does not include a configuration related to a complicated control module for detecting and analyzing a defect, and only includes a configuration for transmitting and receiving information to and from the monitoring device 3, so that Production is possible. Since the surface wave sensor device 1 is installed on the blade 100 exposed to an external environment such as wind and rain, it is inevitable that frequent breakdowns occur, and the cost of managing the blade 100 is reduced by enabling low cost manufacturing. It can be reduced, and can be diagnosed and informed of the failure of the surface wave sensor device 1 as described later, so that management can be made efficiently.

The surface wave generator 11 is configured to generate a surface wave that is transferred along the surface of the blade by receiving an electric signal. As shown in FIG. 2, the surface wave generator 11 and the piezoelectric plate 111 are formed on the surface wave generator 11. The electrode 112 may be formed on the surface of the electrode 112. When the voltage is supplied to the electrode 112, the surface acoustic wave is generated while the stress and oscillation process is repeated by the piezoelectric plate 111. The surface wave generator 11 may be supplied with an electrical signal of a pulse voltage so that the surface wave of a predetermined frequency may be generated by the piezoelectric plate 111, and a function generator, a power amplifier, or the like may be used for this purpose. The surface wave generator 11 may be formed at a predetermined interval to face the surface wave receiver 12 as shown in FIG. 3, and the low frequency generator 11a for generating a low frequency of 20 to 50 KHz, and 70 to 100 KHz. It may include a high frequency generator 11b for generating a high frequency of. At this time, the low frequency surface wave has a longer feeding distance than the high frequency surface wave, but the blade defect cannot be diagnosed precisely, and the high frequency surface wave can diagnose the blade defect more precisely than the low frequency surface wave. There is a short disadvantage, so that rough diagnosis is first performed by using the low frequency surface wave, and high frequency is generated at the part where the abnormality is suspected, thereby enabling precise diagnosis of the blade surface.

Particularly, in the present invention, the surface wave generator 11 includes a high frequency generator 11b and a low frequency generator 11a for generating a high frequency and a low frequency of a specific frequency, and the surface wave receiver 12 receives a surface wave of a specific frequency. The high frequency receiver 12b and the low frequency receiver 12a to be received include the high frequency generated by the high frequency generator 11b at the high frequency receiver 12b and receive the high frequency generated by the low frequency generator 11a. It can be received at (12b). Therefore, in the present invention, when the electric signal generated by the low frequency unit 12a detects an abnormality of the blade after operating the low frequency generator 11a, the high frequency generator 11b at the corresponding position is operated separately so that Efficient, fast and accurate detection of blade defects is possible without interference or overlapping problems. In addition, the surface wave generator 11 is set by the signal control unit 31 to be described later of the monitoring device 3 by setting a predetermined zone and by operating the low frequency generator 11a and high frequency generator 11b for each zone It is possible to enable more efficient detection of defects. Detailed description thereof will be described later.

In addition, the present invention may allow the surface wave to be generated only through the low frequency generating unit 11a so as to detect a defect of the blade, which will be described later.

The surface wave receiver 12 is positioned to be spaced apart from the surface wave generator 11 at a predetermined interval and generates an electrical signal by receiving the surface wave generated by the surface wave generator 11 and transferred along the blade surface. The plurality is positioned at regular intervals on the (100) surface. In the case where cracks, corrosion, and foreign matters are generated on the blades 100 and thus the blades are in a bad state, the surface waves transferred along the surface of the blades 100 are reflected, diffracted, and attenuated to generate electrical signals generated by the surface wave receiver 12. Since the blade is changed unlike the normal case, the state measuring system diagnoses the blade state by analyzing the electrical signal generated by the surface wave receiver 12. As shown in FIG. 2, the surface wave receiver 12 may include a piezoelectric plate 121 made of a piezoelectric element such as lead zirconate titanate (PZT), and an electrode 122 formed on the piezoelectric plate 121. have. When the surface wave generated by the surface wave generator 11 and transferred along the surface of the blade reaches the surface wave receiver 12, a stress is applied to the piezoelectric plate 121 to generate an electrical signal, thereby controlling the controller through the electrode 122. Information transmitted about the signal 14 is transmitted to the monitoring device 3 so that the defect can be analyzed.

In particular, the surface wave receiver 2 includes a low frequency receiver 12a for receiving surface waves of low frequency generated by the low frequency generator 11a, and a high frequency receiver for receiving surface waves of high frequency generated by the high frequency generator 11b. 12b, wherein the low frequency receiver 12a and the high frequency receiver 12b have a natural frequency equal to the high frequency generated by the low frequency and the high frequency generator 11b generated by the low frequency generator 11a, respectively. Can be formed. In other words, the piezoelectric plates 121 of the low frequency unit 12a and the high frequency receiver 12b are formed to have the same natural frequency as that of the low frequency and the high frequency to receive, respectively, and the electric signals generated by the surface waves through resonance phenomenon. By amplifying, the signal comparison in the steady state and the abnormal state can be made clear so that accurate blade defects can be detected.

Meanwhile, FIGS. 4 to 6 show that the surface wave generator 11 includes only the low frequency generator 11a, and the low frequency wave unit 12a and the high frequency receiver for the low frequency surface wave generated by the low frequency generator 11a. FIG. 12B is a view for explaining the case where the defect is received at 12b so as to detect the defect of the blade 100. The defect of the blade 100 can be detected more efficiently. As described above, the low frequency receiver 12a and the high frequency receiver 12b receive the surface waves generated by the low frequency generator 11a and the high frequency generator 11b, respectively, and the low frequency receiver 12a and the high frequency receiver 12b. When the low frequency and high frequency are generated to have the same natural frequency, respectively, it is possible to efficiently and quickly and accurately detect the defect of the blade 100, as shown in Figures 4 to 6 low frequency generating portion (11a) When the low frequency generated by the low frequency unit 12a and the high frequency unit 12b are received to generate an electrical signal, it was confirmed that the defect of the blade 100 can be detected. Therefore, when the precise measurement is required, the low frequency generator 11a and the high frequency generator 11b are both operated as described above to detect the blade 100 defect, and when the rapid measurement is required, FIG. 4. As described with reference to FIG. 6, the defect of the blade 100 may be detected using only the low frequency generated by the low frequency generator 11a. 5 to 6 illustrate electrical signals generated by the low frequency surface waves received by the high frequency receiver 12b. FIG. 5 illustrates electrical signals obtained according to blade crack lengths (2, 4, 6, and 8 cm). 6 shows an electric signal obtained according to the width (medium (5mm), high (40mm)) of the blade crack, and the pattern in which the amplitude and phase of the electric signal changes according to the length and width of the crack can be seen. Therefore, when the low frequency surface wave generated by the low frequency generator 11a is received by the high frequency receiver 12b, it is possible to confirm that the blade defect can be detected by checking the phase and amplitude changes of the generated electrical signal. The electrical signal generated by the low frequency unit 12a is analyzed to detect an abnormality, and at the point where the abnormality is detected, the electrical signal generated by the high frequency receiver 12b is precisely analyzed to determine the type and degree of defects of the blade 100. Can be detected.

The wireless communication unit 13 is configured to transmit and receive a wireless signal with the monitoring device 3, various wireless communication modules such as Bluetooth can be applied. The wireless communication unit 13 transmits the information on the electrical signal generated by the surface wave receiver 12 to the monitoring device 3, and receives the operation information on the surface wave generator 11 and the light emitting unit 15 Transfer to the control unit 14.

The control unit 14 is configured to control the operation of the surface wave sensor device 1, to transmit information about the electrical signal generated by the surface wave receiver 12 to the monitoring device 3, the monitoring device (3) In accordance with the control signal received from the surface wave sensor device (1) to operate. As illustrated in FIG. 7, the controller 14 may include a signal generation module 141, a generation signal transmission module 142, and a light emission control module 143.

The signal generation module 141 is configured to operate the surface wave generator 11 according to a control signal received from the monitoring device 3, and operate the surface wave generator 11 at a specific position according to a user's manipulation. You can do that. In addition, the signal generation module 141 may operate the low frequency generator 11a first, and then operate the high frequency generator 11b according to whether an abnormality is detected, and a part of the low frequency generator Only 11a) may be operated or only the low frequency generator 11a may be controlled to operate. In addition, the signal generation module 141 may repeatedly operate the surface wave generator 11 by the defect checker 324 which will be described later for accurate detection of the defect, and through this, the surface wave sensor device 1 The fault may also be diagnosed.

The generation signal transmission module 142 is configured to transmit information about the electrical signal generated by the surface wave receiver 12 to the monitoring device 3, and to transmit the information through the wireless communication unit 13. This enables the detection of blade defects.

The light emission control module 143 is configured to control light emission by the light emitting unit 15 to control light emission according to a control signal transmitted through the defect display unit 34 to be described later of the monitoring apparatus 3. The light emission control module 143 causes the light emitting unit 15 to emit light according to the analysis result of the defect analysis unit 32 of the monitoring device 3 and emits light according to the type and extent of the defect. And illuminance can be adjusted so that the user can easily determine the location, type, and degree of the defect, the operator who repairs the defect can quickly and accurately resolve the defect in the field without additional information.

The light emitting unit 15 is configured to emit light according to the defect position, type, and degree of the defect of the blade 100 analyzed by the monitoring device 3, preferably may be formed of an LED module, etc., As shown in FIG. 3, each surface wave receiver 12 may be formed. Accordingly, the light emitting unit 15 emits light on the surface wave receiver 12 that is analyzed as having a defect so that the position of the defect can be displayed, and the emission color and illuminance are adjusted according to the type and degree of the defect. In addition, it should be possible to quickly and easily identify the defects, and in particular, the worker repairing the defects will be able to easily identify the location, type and extent of the defects.

The monitoring device 3 detects a defect of the blade 100 by using an electrical signal generated by the surface wave sensor device 1, more specifically, the surface wave receiver 12, and detects a state of the blade 100. It allows to monitor and control the operation of surface wave sensor device (1) remotely. To this end, the monitoring device 3 may include a signal control unit 31, a defect analysis unit 32, a screen display unit 33, a defect display unit 34, and a communication unit 35.

The signal control unit 31 is configured to control the generation of the surface wave by the surface wave generator 11, so that the surface wave generator 11 to be operated according to the user's operation can be selected. As described above, the signal control unit 31 may generate the low frequency generator 11a first and then operate the high frequency generator 11b at the point where the abnormality occurs, and only the low frequency generator 11a is sequentially In order to detect defects more efficiently, as shown in FIG. 3, the blade 100 is divided into predetermined regions 312a so that the surface wave generator 11 is automatically operated for each region. can do. To this end, the signal control unit 31, the operation sensor selection module 311, the zone setting module 312, the low-frequency generation module 313 for each zone, the high frequency generation zone designation module 314 as shown in FIG. It may be to include.

The operation sensor selection module 311 is configured to select the surface wave generator 11 to be operated, can be manually selected by the user, it is configured to operate sequentially by specifying the surface wave generator 11 to be operated You may.

The zone setting module 312 is configured to divide the blade 100 into predetermined zones 312a for efficient detection of blade defects, and includes a plurality of surface wave generators 11 and surface wave receivers 12. (312a) is set. The zone setting module 312 may change the zone 312a, which is set according to the size, use environment, etc. of the blade 100 at any time, so that only one low frequency generator 11a is operated first for each zone 312a, The high frequency generator 11b may be operated only in the region where the abnormality occurs. In addition, in the case of detecting a defect only by the occurrence of low frequency, it is possible to promptly detect the defect by analyzing the signal generated by the high frequency receiving unit 12b only in the region where the abnormality occurs.

The low frequency generation module 313 for each zone is configured to operate only one low frequency generator 11a for each zone, and since the low frequency has a wide range, the low frequency generator 11a does not need to operate all the low frequency generators 11a. By operating only one low frequency generator 11a in the region 312a including the generator 11a to diagnose abnormality first, it is possible to reduce the amount of electricity used and to quickly detect a defect.

The high frequency generation zone designation module 314 specifies a location, type, and degree of a defect by generating a high frequency in a corresponding zone 312a when an abnormality is detected through the low frequency generated by the low frequency generation module 313 for each zone. Do it. Therefore, the present invention is to generate the surface wave only by one of the low-frequency generating portion (11a) of the plurality of low-frequency generating portion (11a) in the predetermined region (312a) by the low-frequency generating module 313 for each zone, and also generated By generating high frequency only in the region 312a where an abnormality is detected by the low frequency, it is possible to minimize the amount of electricity used for the detection of blade defects and to shorten the time required. In addition, when the surface wave generator 11 is set to generate only a low frequency, the high frequency generation zone designation module 314 detects an abnormality by an electric signal generated by the low frequency signal unit 12a. ) May be configured to precisely analyze the electrical signal generated through the high frequency receiver 12b.

The defect analysis unit 32 is configured to detect the defect of the blade 100 by analyzing the electrical signal generated from the surface wave receiver 12, and receives information about the signal from the surface wave sensor device (1) Analyze. The defect analyzer 32 detects an abnormality of the blade 100 through a signal generated by the low frequency unit 12a, and the blade 100 by a signal generated by the high frequency receiver 12b. The location, type, and extent of the defect should be specified in detail. The surface waves generated by the surface wave generator 11 and transported along the surface of the blade 100 are reflected, diffracted, and attenuated when contacted with cracks, corrosion, and foreign substances, and thus are generated by the surface wave receiver 12. The electrical signal is changed in amplitude and frequency. Therefore, the defect analysis unit 32 may detect the defect of the blade by analyzing the electrical signal generated by the surface wave receiver 12. In particular, the defect analysis unit 32 analyzes and stores the pattern of the electrical signal that is changed according to the type and size of the defect, and compares it with the electrical signal generated by the actual surface wave receiver 12. The size of the surface wave generator 11 and the surface wave receiver 12 may be spaced apart from each other at a predetermined interval so that the location of the defect can be easily specified. As shown in FIG. 9, the defect analysis unit 32 includes a reception signal analysis unit 321 for analyzing an electrical signal generated by the surface wave received by the surface wave reception unit 12, and each surface wave reception unit 12. Received by the basic signal storage unit 322 for each receiving unit for analyzing and storing the electrical signal generated according to the steady state and the defect with respect to the received signal analysis unit 321 and the basic signal storage unit 322 for each receiving unit A defect identification unit 323 for specifying blade defects by comparing electrical signals and a defect determination unit 324 for determining a defect and diagnosing the failure by repeatedly transmitting and receiving surface waves are included.

The received signal analyzer 321 is configured to analyze the electrical signal generated by the surface wave receiver 12, and the information analyzed by the received signal analyzer 321 is the basic signal storage unit 322 for each receiver. It is compared with the information stored by to diagnose the defect of the blade and to allow the specification of the defect to be made. The received signal analyzer 321 may include a receiver-specific amplitude analysis module 321a for analyzing the amplitude of the electrical signal with respect to each surface wave receiver 12, and a phase-specific analysis module 321b for receivers for analyzing phases. The receiver amplitude analysis module 321a and the receiver phase analysis module 321b calculate the average amplitude and phase difference of the electrical signal for a predetermined time, and store the amplitude and phase stored by the basic signal storage unit 322 for each receiver. Can be compared to

The basic signal storage unit 322 for each receiver is configured to store electrical signal information of each surface wave receiver 12 which can be compared with the information analyzed by the reception signal analyzer 321, and the blade is free of defects. In the steady state, the electrical signal generated by the surface wave receiver 12 and the electrical signal generated by the surface wave receiver 12 according to the type and extent of the defect when the blade is generated are stored. The receiver-specific basic signal storage unit 322 includes a normal amplitude information storage module 322a for storing amplitude information in a steady state, a normal phase information storage module 322b for storing phase information in a steady state, and amplitudes for each defect. A defect-specific amplitude information storage module 322c for storing information and a defect-specific phase information storage module 322d for storing phase information for each defect.

The normal amplitude information storage module 322a and the normal phase information storage module 322b receive and generate surface waves generated by the surface wave generator 11 in the normal state in which the blades are free from defects. Analyze and store the average amplitude and phase difference of the electrical signal.

The defect-specific amplitude information storage module 322c and the phase information storage module 322d for each defect generate an electrical signal generated by the surface wave receiver 12 for each type of defect when defects such as cracks, corrosion, and foreign substances occur on the blades. Analyze and store the amplitude and phase difference. Defects of the blade have a large influence on the reflection of the surface waves in the foreign material, and attenuates the surface waves more than the corrosion in the case of cracks, and the length or width of the cracks as shown in FIGS. According to the present invention, an electric signal having a different amplitude and phase is generated. Accordingly, the defect-specific amplitude information storage module 322c and the defect-specific phase information storage module 322d analyze the average amplitude and phase difference information of the electrical signal generated by the surface wave receiver 12 according to the type and extent of the defect. By storing and comparing the stored information with the information analyzed by the reception signal analysis unit 321, it is possible to specify the type and extent of the blade defect.

The defect specifying unit 323 is configured to compare the information analyzed by the reception signal analysis unit 321 and the basic signal storage unit 322 for each receiver to specify a defect of the blade, the amplitude and phase information of the signal By comparing the and to determine the type and extent of the defect, it is possible to specify the location of the defect using the surface wave receiver 12 in which the defect occurred. To this end, the defect specifying unit 323 is a receiver comparison amplitude comparison module 323a for comparing the amplitude information for each surface wave receiver 12, phase comparison module 323b for each receiver comparing the phase information, the comparison of the amplitude and phase Defect type specifying module 323c for specifying the type of defect through, a defect degree specifying module 323d for specifying the degree of defect, and a defect position specifying module 323e for specifying the position of the defect.

The receiving unit amplitude comparison module 323a and the receiving unit phase comparison module 323b include the average amplitude information and the phase information of the electrical signal analyzed by the receiving signal analyzing unit 321, and the basic signal storing unit for each receiving unit ( 322) to compare the steady state, the kind of defects, the average amplitude of each degree of defects, and the phase information.

The defect type specifying module 323c may be cracked, corroded, foreign matter, etc. when the average amplitude and phase information is within a predetermined range according to the result of comparison by the receiver-specific amplitude comparison module 323a and the receiver-specific phase comparison module 323b. It should be specified that a defect of that kind has occurred.

The defect degree specifying module 323d is configured to determine the amplitude and phase information and the magnitude of the defect analyzed by the receiving signal analysis unit 321 by the receiving unit amplitude comparison module 323a and the receiving unit phase comparison module 323b. Compare the amplitude and phase information accordingly to specify the length and width of the defect.

The defect location specifying module 323e specifies the surface wave receiver 12 determined to have a defect in the defect type specifying module 323c to specify the location of the defect.

The defect determiner 324 is configured to automatically repeat transmission and reception of surface waves in order to increase the accuracy of blade defect detection by the defect analysis unit 32 and to diagnose the failure of the surface wave sensor device 1. Thus, when the defect is specified by the defect specifying unit 323, transmission and reception of the surface wave is repeated. The defect determiner 324 generates the surface wave at a plurality of times at predetermined time intervals, and determines the type, location, and degree of the defect only when the same defect is specified a predetermined number of times through the transmission and reception of the surface wave. Confirm. The defect determining unit 324 automatically transmits and receives a plurality of surface waves several times after a predetermined time elapses when a defect is not matched for a predetermined number of times, and the defect does not match a predetermined number of times. Diagnose the failure of the sensor device (1) so that it can be informed. To this end, the defect determination 324 may include an iterative measurement module 324a, a defect comparison module 324b, a defect determination module 324c, a remeasurement module 324d, and a failure diagnosis module 324e. .

The repeating measurement module 324a is configured to automatically repeat the transmission and reception of the surface wave a plurality of times when the position, type, and degree of the defect are specified by the defect identification unit 323. The surface wave receiver 12 The generated electrical signal is analyzed so that the defect can be specified by the defect specifying unit 323.

The defect comparison module 324b compares the defects specified by the transmission and reception of the surface wave repeated a plurality of times by the repeating measurement module 324a to calculate the number of times that the position, type, and degree of the defects coincide.

The defect determination module 324c is configured to determine a corresponding defect when the position, type, and degree of the defects compared by the defect comparison module 324b coincide with the initially specified defect for a predetermined number of times. It makes the detection more accurate.

The re-measurement module 324d is configured to automatically repeat the transmission and reception of a surface wave several times after a predetermined time when the defect is specified but the defect is not matched for a predetermined number of times. If so, it is possible to diagnose the failure of the surface wave sensor device (1). The re-measurement module 324d repeats the transmission and reception of the surface wave like the repeat measurement module 324a, and compares the defects several times to determine the defects when the defects match a predetermined number of times.

When the failure diagnosis module 324e detects a defect by the transmission and reception of the surface wave by the re-measurement module 324d, if the defect does not coincide again for a predetermined number of times, it is determined that the surface wave sensor device 1 is broken. Inform them and take action. The fault diagnosis module 324e generates a continuous signal abnormality, but if the abnormal signal repeatedly occurs irregularly, it is diagnosed as a failure of the surface wave sensor device 1 and notified so as to increase the accuracy of the defect. Allow for quick response to faults.

The screen display unit 33 is configured to check and verify the information of the defect analyzed by the defect analysis unit 32 to enable more accurate state detection of the blade, and an electrical signal generated by each surface wave receiver 12 And defect information to be displayed on a separate screen (not shown). The present invention allows the defect analysis unit 32 to automatically specify the type, size, and location of the defects, but since accurate information cannot always be output, the monitor directly signals through the screen display unit 33. By confirming the information, it is possible to confirm and verify the information detected by the defect analysis unit 32. As shown in FIG. 10, the screen display unit 33 is analyzed by the signal analysis unit 331 for receiving a unit for displaying an electric signal generated for each surface wave receiver 12 on the screen, and the defect analysis unit 32. And a defect information display unit 332 for displaying the defect information on the screen.

The receiving unit signal display unit 331 is configured to display an electric signal generated by each surface wave receiver 12 on a screen, and to display a change in voltage over time, and a signal in a normal state, which is actually generated. Signals and signals according to defects are displayed together, and each signal is synchronized with time so that an accurate comparison can be made, and an amplitude difference and a phase difference of each signal can be displayed on the screen for easy and quick comparison. The receiving unit signal display unit 331 may form a separate area for each surface wave receiver 12 to be displayed on the screen. The reception unit signal display unit 331 includes a normal signal display module 331a, a reception signal display module 331b, a defect signal display module 331c, a signal synchronization module 331d, an amplitude difference display module 331e, and a phase difference. The display module 331f may be included.

The normal signal display module 331a is configured to display an electric signal generated by each surface wave receiver 12 on the screen in a normal state in which there is no defect of the blade. The normal amplitude information storage module 322a and the normal phase Signal information which is the basis of amplitude and phase information stored by the information storage module 322b is displayed on the screen. The normal signal display module 331a is displayed for each surface wave receiver 12 and may be configured to be displayed only when a predetermined button is pressed.

The reception signal display module 331b is configured to display an electric signal generated by the surface wave generated by the surface wave receiver 12 on the screen when the actual state of the blade is sensed, and to be displayed for each surface wave receiver 12. Therefore, direct comparison with the signal displayed by the normal signal display module 331a and the defect-specific signal display module 331c may be performed.

The defect-specific signal display module 331c is configured to display signals according to the type and extent of blade defects on the screen, and can be displayed only when a predetermined button is pressed for each surface wave receiver 12, and the received signal display is performed. By comparing with the signal displayed by the module 331b, it is possible to determine the type and extent of the defect.

The signal synchronization module 331d is configured to synchronize the viewpoints of the signals displayed by the normal signal display module 331a, the reception signal display module 331b, and the defect-specific signal display module 331c. The unit 11 synchronizes each signal with respect to the time point at which the surface wave is generated. Accordingly, the signal synchronization module 331d may synchronize the time points of each signal so that an accurate comparison may be made.

The amplitude difference display module 331e is configured to display an amplitude difference between signals displayed on the screen on the screen. The amplitude signal display module 331a, the reception signal display module 331b, and the defect-specific signal display module 331c. Among the signals displayed by), an amplitude difference between the normal signal display module 331a or the defect-specific signal display module 331c and the reception signal display module 331b is emphasized and displayed on the screen. Therefore, the user can easily grasp the amplitude difference between the signal displayed by the reception signal display module 331b and the signal displayed by the normal signal display module 331a or the signal display module 331c for each defect. It can be done quickly and easily.

The phase difference display module 331f differs only in terms of the configuration of displaying the phase difference from the amplitude difference display module 331e on the screen, and also allows the identification of defects to be made quickly and easily.

The defect information display unit 332 is configured to display the defect information determined by the defect determination unit 324 on the screen, and displays the position of the surface wave receiver 12 where the defect is generated, the type and degree of the defect on the screen. Do it. In addition, the defect information display unit 332 enables to quickly recognize the failure by displaying the failure on the screen when the failure of the surface wave sensor device 1 is diagnosed. To this end, the defect information display unit 332 includes a defect position display module 332a for indicating the position of the defect, a defect type display module 332b for displaying the type of the defect, and a defect degree display module for displaying the degree of the defect. 332c, a failure display module 332d indicating the occurrence of the failure may be included. Therefore, the user checks the signal displayed by the receiver-specific signal display unit 71 and the defect information displayed by the defect information display unit 73 at the same time, whether the correct defect is detected or whether a failure has occurred. It can be easily confirmed.

The defect display unit 34 is configured to display defect information determined by the defect determination unit 324 on the blade 100, and the position, extent, and type of defects may be intuitively provided through the light emitting unit 15. It can be displayed so that the defect can be quickly identified and the convenience of repairing the defect can be increased. In addition, the defect display unit 34 may be displayed on the blade 100 whether the failure occurs. To this end, the defect display unit 34 is a defective light emitting module 341, a light emitting color control module 342 for each defect, the illumination control module 343 for each degree, the failure light emitting module 344 as shown in FIG. ).

The defective part light emitting module 341 is configured to display information about the defect on the blade 100, and emits the light emitting parts 15 formed in the surface wave receivers 12 to display the defect. The defect part light emitting module 341 emits the light emitting part 15 corresponding to the position where the defect is determined so as to indicate a point where the defect occurs, and thus, an operator who repairs the defect can easily identify the defect point. do.

The defect-specific emission color control module 342 is configured to adjust the color emitted by the light emitting unit 15 according to the type of defect, for example, to adjust the color emitted depending on whether the defect is cracks, corrosion or foreign objects. Do it.

The degree-of-illuminance control module 343 is a configuration for adjusting the illuminance of the light emitted according to the degree of the defect, for example, the more severe the degree of the defect can be emitted to have a high illuminance. Therefore, the present invention is not only to enable easy identification of the defect position by the lighting is made to the position where the defect occurs through the defect light emitting module 341, but also to adjust the emission color and illuminance according to the type and degree of the defect. Therefore, the defect can be accurately identified even at a remote location, and the worker who repairs the defect can easily identify the defect and execute a quick and accurate work.

The fault light emitting module 344 is configured to emit light of the light emitting part 15 at a position corresponding to the surface wave receiver 12 diagnosed as a fault by the fault diagnosis module 324e. To emit light. Therefore, the failure part light emitting module 344 makes it possible to easily grasp the location where the failure has occurred so that quick work can be made.

The communication unit 35 is a configuration for transmitting and receiving a wireless signal with the surface wave sensor device 1, a wireless communication module such as Bluetooth can be applied, various configurations capable of transmitting and receiving wireless signals can be applied. The communication unit 35 receives information on the electric signal generated by the surface wave receiver 12 from the surface wave sensor device 1 and transmits control information to the surface wave sensor device 1.

Referring to the wind turbine blade state measurement system according to another embodiment of the present invention with reference to Figures 12 to 21, the state measurement system is such that the surface wave sensor device 1 is fixed to the blade 100 as in one embodiment Rather than being installed, to move along the blade 100 through the coupling moving device (5). Therefore, in the state measurement system according to the present embodiment, the surface wave sensor devices 1 are coupled to the coupling movement device 5 and moved along the blades 100 without the need to attach the plurality of surface wave sensor devices 1 to the blades 100. Manufacturing, installing, and maintaining the sensor device 1 can save cost and time.

The surface wave sensor device 1 is not attached to the blade 100 and is coupled to the first and second compression units 512a-1 and 512b-1 to be described later, which will be described later. Since it has the same structure and the monitoring apparatus 3 also has the same function and structure which analyzes or displays a defect, detailed description is abbreviate | omitted below. The surface wave sensor device 1 is coupled to the supporting members 512a-12 and 512b-12 to be described later of the first and second compression parts 512a-1 and 512b-1, together with the vacuum pads 512a-11 and 512b-11. By rotating, it can be compressed to the blade 100 in a horizontal state, through which the precise transmission and reception of the surface wave can be made even in the movement of the surface wave sensor device (1). In addition, the surface wave sensor device 1 moves at a predetermined interval through the coupling moving device 5 to generate a low frequency by the low frequency generator 11a, and a narrower interval only at a point where an abnormality is detected by the low frequency. By moving to the high frequency generator 11b to generate a high frequency so that precise defects can be detected, efficient defects can be detected even when the surface wave sensor device 1 is moved. In addition, when detecting a defect with only the low frequency generating unit 11a, it moves at a predetermined interval and analyzes only the signal generated by the low frequency generating unit 12a, and moves at a narrower interval only at a point where an abnormality occurs and the high frequency receiving unit 12b. By analyzing the signal generated by the can be performed to ensure precise defect detection.

The combined movement device 5 moves along the blade 100 to diagnose and measure the state of the blade 100 by transmitting and receiving surface waves, and is particularly stable to the blade 100 even in various bendings of the blade 100. It can be combined to, and to increase the accuracy of the blade 100 state measurement through the transmission and reception of accurate surface waves. To this end, the combined movement device (5) and the main body portion 55 for supporting each component; Coupling support parts 51 formed on both sides of the main body part 55 and moving along the blades 100 in a state of being coupled to and supported by the wind turbine blades 100; A sensor moving part 52 for moving the coupling support part 51; A moving support part 53 for moving the main body part 55 while being supported by the blade 100; It includes; control unit 54 for controlling the operation of the coupling moving device (5).

The coupling support part 51 is compressed and supported by the blade 100, and moves along the blade 100, and a pair is formed at both sides of the main body part 55 to be compressed at both sides of the blade 100. Make sure In addition, the coupling support 51 to form a fixed coupling support 51 'and a movable coupling support 51' 'to be spaced apart by a predetermined interval to enable movement along the blade 100, fixed coupling support The 51 'is coupled to and fixed to the main body portion 55 and moves integrally with the main body portion 55, and the movable coupling support portion 51' 'is supported by the main body portion 55 and along the main body portion 55. It is configured to be mobile. In this case, a surface wave sensor device 1 is formed on the movable coupling support 51 ″ to move along the blade 100 to transmit and receive surface waves, and the movable coupling support 51 ″ is the end of the main body 55. When moving up to, the fixed engagement support portion 51 'moves together with the main body portion 55 in a state where the movable engagement support portion 51 ″ is compressed and coupled to the main body portion 55 to the next section of the blade 100. Allow for status measurements to be made. Detailed description of the movement of the fixed coupling support 51 'and the movable coupling support 51' 'will be described in detail with reference to the sensor moving part 52.

The fixed coupling support 51 ′ and the movable coupling support 51 ′ are the same except that the surface wave sensor device 1 is formed on the movable coupling support 51 ″ as shown in FIGS. 14 to 15. Since it has a configuration, hereinafter will be collectively referred to as the coupling support 51, and if necessary it is indicated by the reference numeral '' of the configuration for the fixed coupling support 51 ', and the mobile coupling support 51' ')' Shall be indicated in the reference numerals of the components related to ').

In addition, the coupling support 51 is a rotating portion 511 that rotates toward or away from the blade 100 toward the blade 100, the coupling portion 512 formed on one end of the rotating portion 511 in close contact with the blade 100 Including), the coupling moving device 5 is coupled to the blade to be supported or released to move along the blade 100.

The rotating part 511 is rotated to move toward or away from the blade 100, the coupling part 512 formed at the end thereof is compressed, coupled to or released from the blade 100 can be moved along the blade 100 Rotating bar (511a) to rotate to move closer or farther toward the blade 100 in a configuration such that; A driving cylinder 511b rotatably coupled to the main body part 55 and connected to an end of the rotation bar 511a to push or pull the rotation bar 511a; It includes; a rotation support bar (511c) is coupled to both ends rotatably at one point and the body portion 55 of the rotation bar (511a).

The rotary bar 511a has one end connected to the drive cylinder 511b and the other end connected to the coupling part 512 to rotate according to the operation of the drive cylinder 511b. Rotate around the point. Therefore, as shown in FIG. 16 (a), the rotation bar 511a is moved away from the blade 100 when the cylinder arm 511b-1 of the driving cylinder 511b is pulled. Can be moved along the blade 100 and, on the contrary, when the cylinder arm 511b-1 is pushed out to protrude, the coupling part 512 is rotated in a direction close to the blade 100 to be crimped and coupled. To be possible.

One end of the driving cylinder 511b is connected to the main body 55 and the other end is connected to one end of the rotation bar 511a. Allow it to rotate. The operation of the driving cylinder 511b may be controlled by the rotation controller 543, which will be described later, and may be automatically controlled according to the distance between the coupling part 512 and the blade 100.

The rotation support bar 511c is formed so that both ends are rotatably connected to one point of the rotation bar 511a and the main body part 55 to be the rotation center of the rotation bar 511a, and the driving cylinder 511b. According to the operation of the coupling portion 512 is compressed or released to the blade 100 to be rotated away from the compression.

The coupling part 512 is formed at one end of the rotating part 511 to be in close contact with and coupled to the blade 100. In particular, the first coupling part 512a and the second coupling part 512b are separately formed on both sides. It is formed to rotate to be compressed to the blade 100 having various bends. In other words, the first coupling part 512a and the second coupling part 512b formed at both sides rotate at an angle that can be as horizontal as possible with the surface of the blade 100 according to the bending of the blade 100. The surface wave sensor device 1, which can be stably compressed and coupled to the blade 100 and rotates together with the coupling part 512, can also be pressed horizontally onto the blade 100 to accurately transmit and receive surface waves. To help.

In addition, as the first coupling part 512a and the second coupling part 512b are formed at both sides and pressed onto the same surface of the blade 100, the first coupling part 512a and the second coupling part 512b are attached to the first coupling part 512a and the second coupling part 512b. The surface wave generator 11 and the surface wave receiver 12 are formed to transmit and receive surface waves, respectively, so that the state of the surface of the blade 100 can be measured. For example, the surface wave sensor device 1 may be formed such that the surface wave generator 11 and the surface wave receiver 12 on both sides of the blade 100 face each other, as shown in FIG. 15, and thus the blade 100. ) The condition measurement on the surface ⓐ and the condition measurement on the edge (junction, ⓑ) can be performed at the same time, thereby enabling efficient and rapid blade 100 status measurement. More specifically, as shown in FIG. 15, the surface wave sensor device 1 includes the surface wave generator 11 and the second compressed portion in the first pressing portion 512a-1 in the coupling support portion 51 on one side. The surface wave receiver 12 is formed at 512b-1, and the other side of the coupling support 51 opposite to the surface wave receiver 12 is formed on the surface of the first receiver 512a-1 and the second receiver 512b-1. The surface wave generator 11 may be formed in 1), such that the surface wave generator 11 and the surface wave receiver 12 may be formed to face each other with respect to the blade 100. In this case, when the surface wave is generated by the surface wave generator 11, the surface wave receiver 12 formed on the same blade surface and the surface wave receiver 12 formed on the opposite blade surface are simultaneously received to the blade surface ⓐ and the junction ⓑ. By the measurement of the state can be made at the same time, it is possible to make the state measurement on the blade is made efficiently and quickly.

The first coupling part 512a is formed to be rotatable at the end of the rotation part 511, and is formed to face the main body part 55. The first compression part 512a-which is pressed onto the blade 100 is provided. 1) and a first fine adjustment unit 512a-2 for adjusting the angle of the first compression unit 512a-1.

The first crimping portion 512a-1 is configured to be pressed onto the blade 100 at the main body part 55 side with respect to the end of the rotation bar 511a. The vacuum pad 512a is pressed against the blade 100. -11), a support member 512a-12 for supporting the vacuum pad 512a-11, and a distance sensor module 512a-13 for measuring a distance from the blade 100.

The vacuum pad 512a-11 is configured to press the blade 100 when the internal air is removed to form a vacuum, and is connected to a separate vacuum pump to inject and remove air. The vacuum pad 512a-11 removes internal air when the first coupling part 512a is compressed and supported by the blade 100, and the first coupling part 512a is pressed against the blade 100. When it is released and moves along the blade 100, the air is injected to release the compression. In addition, the vacuum pad 512a-11 is supported by the support member 512a-12 to rotate together, and rotates according to the curvature of the surface of the blade 100 so that the blade (a state close to the surface of the blade 100) 100) to be squeezed.

The support member 512a-12 is configured to support the vacuum pad 512a-11, and is fixed to the rotating members 512a-21 to be described later of the first fine adjustment unit 512a-2 to rotate together. do.

The distance sensor module (512a-13) is formed on the bottom side of the vacuum pad (512a-11) to measure the distance to the blade 100, various sensor modules that can measure the distance can be applied, Figure As shown in 17 (FIG. 17 is the same as that of the second coupling part 512b or the first and second distance sensor modules 512a-131, 512a-132 of the first coupling part 512a). A pair of first and second distance sensor modules 512a-131 and 512a-132 may be formed at the farthest ends of the bottom side. Accordingly, the distance sensor module 512a-13 may detect the proximity of the vacuum pad 512a-11 and the blade 100 by measuring the distance between the blade 100 and the first and second distance sensors. The distance between the blades 100 measured by the modules 512a-131 and 512a-132 may be compared to rotate the vacuum pads 512a-11 in a state close to the horizontal.

The first micro-control unit 512a-2 is configured to separately control the rotation angle of the first coupling unit 512a, more precisely, the vacuum pad 512a-11, and rotate the rotation unit 511. Apart from this, the vacuum pad 512a-11 of the first crimping unit 512a-1 can be rotated at a fine angle to allow the vacuum pad 512a-11 to be pressed against the blade 100, and the vacuum The surface wave sensor device 1 rotating together with the pads 512a-11 may also be compressed to the blade 100 in a horizontal state. To this end, the first micro-control unit 512a-2 is rotatably connected to one end of the rotation bar 511a, and the first compression unit 512a- at the other end of the side connected to the rotation bar 511a. 1) a rotating member (512a-21) is formed; It includes; the first end of the rotary member (512a-21) and the first end of the rotation cylinder (512a-22) is connected to both ends of the rotary bar (511a) to rotate the rotating member (512a-21).

The rotating members 512a-21 are connected to one end of the rotating bar 511a and rotated, and the other end of the rotating members 512a-12 is coupled to the supporting members 512a-12 of the first pressing part 512a-1. Rotate around the point connected to. The rotary members 512a-21 rotate together with the support members 512a-12 according to the operation of the first rotary cylinders 512a-22, thereby allowing the vacuum pads 512a-11 to rotate together. .

Both ends of the first rotation cylinder 512a-22 are connected to the support member 512a-12 and the rotation bar 511a to rotate the rotation members 512a-21 as the cylinder arms 512a-221 enter and exit. In such a configuration, the vacuum pads 512a-11 may also rotate together with the rotation of the rotating members 512a-21. Therefore, as shown in FIG. 16 (b), the first rotary cylinders 512a-22 are rotatable members 512a coupled thereto when the cylinder arms 512a-221 protrude to push the support members 512a-12. -21 and both of the vacuum pads 512a-11 rotate in the direction ©, and when the cylinder arms 512a-221 are pulled, the vacuum pads 512a-11 rotate in the opposite direction.

The second coupling part 512b is formed to be connected to the end of the rotating part 511 and is formed in a direction away from the main body part 55 as opposed to the first coupling part 512a. The second coupling part 512b includes a second compression part 512b-1 and a second fine adjustment part 512b-2 similarly to the first coupling part 512a to bend the blade 100. The second fine adjustment unit 512b-2 has a different configuration from that of the first fine adjustment unit 512a-2 in order to enable rotation according to the above, but to enable smooth rotation of the second compression unit 512b-1. It can be to have.

The second pressing portion 512b-1 is configured to be pressed onto the blade 100 at a side far from the main body portion 55 with respect to the end of the rotating bar 511a, and has a vacuum pad pressed against the blade 100 ( 512b-11), a rotation support member 512b-12 for supporting the vacuum pad 512b-11, and a distance sensor module 512b-13 for measuring a distance from the blade 100. Since the vacuum pad 512b-11 and the distance sensor module 512b-13 are the same as the vacuum pad 512a-11 and the distance sensor module 512a-13 of the first crimping unit 512a-1, a detailed description thereof will be omitted. do.

 The rotation support member 512b-12 supports the vacuum pad 512b-11 like the support member 512a-12 of the first crimping portion 512a-1, or the second fine adjustment unit 512b. -2) is not coupled to the support bar (512b-21) to be described later to rotate with the support bar (512b-21), as shown in Figure 16 (b) support bar by the rotating shaft (512b-121) Rotatably coupled to 512b-21. In addition, the rotation support member 512b-12 has a second rotation cylinder (to be described later) of the second fine adjustment unit 512b-2 to an upper side or a lower side, preferably an upper side of the point where the rotation shafts 512b-121 are connected. 512b-22 is connected to rotate around the rotating shaft 512b-121 in accordance with the operation of the second rotary cylinder (512b-22), so that the vacuum pad (512b-11) can also rotate together.

The second fine adjustment unit 512b-2 is configured to adjust the minute rotation angle of the vacuum pad 512b-11 of the second compression unit 512b-1, and to one end of the rotation bar 511a. A support bar 512b-21 coupled to the second bar 512b-1 at the other end of the side coupled to the rotation bar 511a; And a second rotation cylinder 512b-22 formed at both ends of the rotation bar 511a and the second compression part 512b-1 to rotate the second compression part 512b-1.

The support bars 512b-21 are coupled to one end of the rotation bar 511a to support the second rotation cylinder 512b-22 and the second compression part 512b-1. It is formed on the far side, and supports the rotation shaft (512b-121) of the rotation support member (512b-12) to allow the rotation support member 512b-12 to rotate about the rotation shaft (512b-121).

One end of the second rotation cylinder 512b-22 is coupled to the rotation bar 511a, and the other end of the second rotation cylinder 512b-22 is connected to the rotation support member 512b-12, thereby supporting the rotation support member 512b-12. In a rotating configuration, the vacuum pads 512b-11 may also rotate together with the rotation of the rotation supporting member 512b-12 to correspond to various bendings of the blade 100. The second rotary cylinder (512b-22) is the other end of the cylinder arm (512b) is connected to the upper side or lower side, preferably the upper side of the point where the rotary shaft (512b-121) of the rotary support member (512b-12) is connected. Rotating support member (512b-12) in accordance with the entry and exit of -221. Therefore, when the cylinder arm 512b-221 is pulled as shown in FIG. 16 (b), the second rotary cylinder 512b-22 has the rotary support member 512b-12 and the vacuum pad 512b-11. When the cylinder arm 512b-221 is pushed out to protrude, the rotary support member 512b-12 and the vacuum pad 512b-11 rotate in opposite directions.

The sensor moving part 52 is configured to move along the blade 100 of the coupling moving device 5, and as shown in FIG. 18, drive means for providing power to move the coupling support part 51 ( 521); A moving body 522 connected to the movable coupling support 51 '' and moving together according to the operation of the driving means 521; Support means (523) for supporting the movable body (522) by being supported by the main body part (55); It includes; proximity sensing means 524 for detecting the proximity of the moving body 522 at both ends of the main body (55).

The driving means 521 is configured to provide the power for the coupling support 51 to move, more precisely to provide the power for moving the movable body 522, the movable coupling support portion 51 'connected to the movable body 522. ') To move along the blade 100. In addition, when the movable body 522 is moved by the driving means 521, the movable coupling support portion 51 '' connected to the movable body 522 is compressed and fixed to the blade 100, the main body including the rotating rod 521c. The fixed coupling support part 51 'coupled to the part 55 and the main body part 55 is moved. The description thereof will be described later in the description of the movement controller 541. To this end, the driving means 521 is a driving motor 521a for generating a driving force, a gear body 521b for transmitting a driving force of the driving motor 521a, and a rotating rod 521c that rotates according to the operation of the driving motor 521a. ) May be included.

The drive motor 521a may be applied to a general motor, and generates a rotational force to rotate the rotating rod 521c, and the movable body 522 moves along the main body portion 55 according to the rotation of the rotating rod 521c. To help. In addition, a gear body 521b may be connected to the driving motor 521a to transmit the rotational force of the driving motor 521a to the rotating rod 521c.

The rotating rod 521c may be directly connected to the driving motor 521a or connected through the gear body 521b, and rotates according to the operation of the driving motor 521a. The rotating rod 521c is installed to be supported at the upper end of the main body part 55 as shown in FIG. 18, and the fixed coupling support part 51 ′ and the movable coupling support part 51 ″ move along the blade 100. In order to be formed in a direction corresponding to the longitudinal direction of the blade 100. An upper end member 522a to be described later of the movable body 522 is inserted into and supported by the rotary bar 521c, and the upper end member 522a moves along the rotary bar 521c by the rotation of the rotary bar 521c. .

The movable body 522 is connected to the rotary rod 521c and moves according to the operation of the driving motor 521a. The upper movable member 522a is connected to the rotary rod 521c and moves according to the rotation of the rotary rod 521c. And the connecting member 522b connected to the upper end moving member 522a and the movable coupling support 51 '' to move the movable engaging support 51 '' together with the movement of the upper movable member 522a. Include. Accordingly, the movable body 522 may move the movable coupling support 51 ″ together with the operation of the driving motor 521 a, and the movable coupled support 51 ″ is compressed and coupled to the blade 100. The main body 55 is moved along the rotating rod 521c together with the fixed engagement support 51 '.

The support means 523 is configured to allow the movable body 522 to be supported by the main body part 55 so as to stably move along the main body part 55. The upper and lower sides of the main body part 55 are upper and lower sides. A pair of supporting means 331 and 332 are formed.

The upper support means 523a is coupled to the upper end moving member 522a and inserted into the rotary rod 521c to guide and move the guide member 523a-1 and the guide member 523a-1 to support the body. And a moving guide rail 523a-2 installed to be fixed to the upper end of the 55. Therefore, the guide member 523a-1 inserted into the rotating rod 521c and moving according to the rotation of the rotating rod 521c is supported by the movement guide rail 523a-2 to move back and forth between the ends of the main body portion 55. Will be.

The lower support means (523b) is formed on the lower side of the main body portion 55 to support the moving body 522, coupled to the connecting member 522b and the rail bar (523b-1) and move together, the main body It is formed to be fixed to the lower side of the portion 55 and includes an insertion guide member (523b-2) is inserted into and supported by the rail bar (523b-1). Accordingly, the rail bar 523b-1 moving along the main body 55 together with the movement of the movable body 522 is supported by the insertion guide member 523b-2 to stably reciprocate both ends of the main body 55. have.

The proximity detecting means 524 is configured to sense the proximity of the movable body 522 at both ends of the main body portion 55, and the proximity of the movable body at one end of the main body portion 55 where the fixed support 51 'is formed. It may include a first proximity sensing module 524a for sensing, and a second proximity sensing module 524b for sensing the proximity of the moving body at the other end of the main body portion 55. Therefore, the movable coupling support part 51 ″ may reciprocate between both ends of the main body part 55, thereby allowing the coupling moving device 5 to move along the blade 100.

The operation of the sensor moving part 52 will be briefly described with reference to FIG. 19. As shown in FIG. 19A, the movable coupling support part 51 ″ is close to the fixed coupling support part 51 ′. When the movable body 522 is sensed by the first proximity sensing module 524a, the movable body 522 moves along the rotating rod 521c at regular intervals, and the movable coupling support 51 ″ is moved at every constant interval. Compressed to the blade 100 to measure the state of the blade 100 through the transmission and reception of surface waves, when moving to release the compression of the mobile coupling support (51 ″) to be able to move. In addition, when the moving body 522 is moved and sensed by the second proximity sensing module 524b as shown in FIG. 19B, the movable coupling support part 51 ″ stops the movement and is compressed to the blade 100. The drive motor 521a is operated to rotate the rotating rod 521c while releasing the compression of the fixed coupling support 51 '. In this case, since the movable body 522 cannot move, the rotating rod 521c moves along the movable body 522, and the main body portion 55 coupled with the rotating rod 521c and the fixed engagement support portion coupled to the main body portion 55. 51 'moves with movement of the rotating rod 521c. When the movable body 522 is detected by the first proximity sensing module 524a as shown in FIG. 19A while the fixed coupling support 51 ′ is close to the movable coupling support 51 ″, the fixed coupling 51 is fixedly coupled. The support part 51 ′ is compressed to the blade 100, and the movable coupling support part 51 ″ moves again at regular intervals and is compressed to the blade to transmit and receive surface waves. Therefore, the coupling support 51 can be stably moved with respect to the entire blade 100 having a considerable length to measure the state.

The moving support part 53 is configured to allow a more stable movement when moving along the blade 100 of the coupling support part 51, as shown in FIG. 16 (a) through the support roller 532. The unit 55 is supported by the blade 100 to be moved, and the position of the support roller 532 by changing the position of the support roller 532 through the operation of the space adjusting cylinder 531 irrespective of the size and position of the blade 100 55 is supported by the blade 100 by the support roller 532 to move. In addition, the movable support part 53 may include a distance sensor 533 detecting the distance between the support roller 532 and the blade 100 to automatically operate the interval adjustment cylinder 531. .

The gap adjusting cylinder 531 is formed at one end of the support roller 532 and the other end is coupled to the main body portion 55, the support roller 532 can be moved toward or away from the blade 100 according to the operation thereof. In such a configuration that the support roller 532 can be moved to a position that can be held in close contact with the blade 100, and the support roller 532 and the blade 100 measured by the distance sensor 533. ), Depending on the distance between them.

The support roller 532 is formed at the end of the gap adjustment cylinder 531 is rotated, is formed in a circular shape by allowing the support to move along the blade 100 in a state supported by the blade 100 (51) Main body 55 is also supported by the blade 100 during the movement of the) to maintain a stable state.

The distance sensor 533 is formed on one side of the support roller 532 to sense the distance between the support roller 532 and the blade 100, the support roller 532 is in contact with the blade 100 To operate the gap adjustment cylinder (531).

The control unit 54 is configured to control the operation of the combined movement device 5, as shown in Figure 20, the movement control unit 541, the interval control unit 542, the rotation control unit 543, the compression control unit 544 It may include.

The movement control unit 541 is configured to control the operation of the sensor moving unit 52, as described above in the sensor moving unit 52 to rotate the rotating rod 521c through the operation of the drive motor 521a, through The movable coupling support 51 ″, the movable coupling support 51 ′ enables movement along the blade 100. To this end, the movement control unit 541 may include a first proximity detection module 541a, a sensor movement module 541b, a second proximity detection module 541c, and a combined movement module 541d.

The first proximity detecting module 541a is configured to receive a signal in which the proximity of the moving object 522 is detected by the first proximity sensing module 524a. When the detection signal is received, the first sensor module 541b receives the sensor moving module 541b. The movable coupling support 51 ″ may move along the blade 100 at regular intervals.

When the sensor moving module 541b detects that the moving body 522 is close to the first proximity sensing module 524a by the first proximity detecting module 541a, the movement coupling support part on which the surface wave sensor device 1 is formed ( 51 '') moves along the blade 100 at regular intervals. In other words, the sensor moving module 541b moves the movable coupling support part 51 ″ by a predetermined distance so that the sensor moving module 541b is compressed to the blade 100 by the rotation control part 543, and the blade state is transmitted and received by transmitting and receiving surface waves. After the measurement, the decompression of the movable coupling support part 51 ″ is performed again, and then moved by a predetermined distance so as to be compressed to the blade 100, and the moving body 522 is the second proximity sensing module 524b. Repeat until detected by. In addition, the sensor moving module 541b may be configured to generate a high frequency after generating a low frequency first and returning to the original position when an abnormality is detected. At this time, the sensor moving module 541b moves at a narrower interval and generates a high frequency so that precise defect detection can be performed.

The second proximity detecting module 541c has a configuration in which the moving body 522 receives a signal sensed by the second proximity sensing module 524b, and the movable coupling support 51 ″ has a sensor moving module 541b. By stopping the movement by the combined movement module (541d) to operate.

The coupling movement module 541d stops the movement of the movement coupling support part 51 ″ by the sensor movement module 541b and maintains the state in which the coupling movement module 541d is compressed and fixed to the blade 100. ) Is released so that the movement according to the operation of the drive motor (521a) is made. As described above, when the rotary rod 521c is rotated in the state in which the movable coupling support 51 '' is fixed to the blade 100, the main body 55 and the fixed coupling support 51 'move along the rotary rod 521c. When the proximity signal of the moving body 522 is received by the first proximity detecting module 541a, the fixed coupling support 51 'is pressed again on the blade 100 and the sensor moving module 541b is operated. To be initiated.

The gap control unit 542 is configured to adjust the operation of the moving support 53, more precisely to adjust the operation of the gap adjustment cylinder 531. The gap controller 542 operates a distance measuring module 542a for measuring the distance between the support roller 532 and the blade 100 by the distance sensor 533, and operates the gap adjustment cylinder 531 according to the distance. It includes a cylinder operation module 542b, and to operate the gap adjustment cylinder 531 so that the support roller 532 can be in contact with the blade 100 at all times.

The rotation control unit 543 is configured to control the operation of the rotation unit 511 and the coupling unit 512 of the coupling support unit 51, more precisely the driving cylinder 511b of the rotation unit 511, the coupling unit The operation of the first rotary cylinder 512a-22 and the second rotary cylinder 512b-22 of 512 is controlled. The rotation control unit 543 is the driving cylinder 511b, the first and second rotation cylinders 512a- when the fixed engagement support 51 'or the movable engagement support 51 &quot; 22, 512b-22 by adjusting the operation of the vacuum pads (512a-11, 512b-11) to be stably pressed and coupled in a horizontal state with the blade 100, a fixed coupling support (51 ') or a mobile coupling support ( When the 51 ″ is squeezed from the blade 100, the operation of the driving cylinder 511b is controlled to allow the vacuum pads 512a-11 and 512b-11 to move away from the blade 100. To this end, the rotation control unit 543 may include a rotation unit operation module 543a, a proximity distance detection module 543b, a coupling unit rotation module 543c, and a proximity distance comparison module 543d.

The rotary part operation module 543a is configured to adjust the operation of the driving cylinder 511b of the rotating part 511, and adjusts the entry of the cylinder arm 511b-1 of the driving cylinder 511b to the rotary bar 511a. ) Is rotated. The rotary part operation module 543a rotates in the direction away from the blade 100 when the cylinder arm 511b-1 is pulled in as described above with the rotary part 511 so that the coupling support part ( 51 can be moved, and when the cylinder arm 511b-1 is pushed out, the coupling portion 512 is rotated in the direction of the blade 100 and pressed. At this time, the rotary unit operating module 543a rotates the rotary unit 511 only to a position away from the blade 100 by the coupling unit 512 to enable fine angle adjustment of the first and second coupling units 512. After the fine angle adjustment is made in that state, the rotating unit 511 is rotated again to allow the coupling unit 512 to be pressed onto the blade 100.

The proximity distance sensing module 543b may include the vacuum pads 512a-11 and 512b-11 of the coupling part 512, more precisely, the first compression part 512a-1 and the second compression part 512b-1. In the configuration for detecting that the distance between the blades 100 is a set distance, when the coupling portion 512 is rotated to be compressed to the blade 100 is approached only up to the set distance by the coupling part rotation module 543c By adjusting the fine rotation angle of the first and second coupling parts (512a, 512b) to match the horizontal state.

The coupling part rotation module 543c controls the operation of the first and second rotation cylinders 512a-22 and 512b-22 of the first and second coupling parts 512a and 512b, according to the bending of the blade 100. The first distance sensor module 512a-131, 512b-131 and the second distance sensor module 512a-132, 512 are configured to adjust the angles of the pads 512a-11 and 512b-11 through the proximity distance comparison module 543d. By comparing the distance between the blade 100 and the vacuum pads (512a-11, 512b-11) measured by b-132, the first and second rotation cylinders (512a-22, 512) so that the distance is the same as the maximum b-22). The coupling part rotation module 543c operates by detecting the proximity of the vacuum pads 512a-11 and 512b-11 by a predetermined distance by the proximity distance detecting module 543b. The rotation to the state is made accurately and the rotation of the coupling support 51 can be made quickly and smoothly.

The close distance comparison module 543d may include a first distance sensor module 512a-131 of the first coupling unit 512a, a first distance sensor module 512a-132, and a first distance of the second coupling unit 512b. Comparing the distance measured by the sensor module (512b-131) and the second distance sensor module (512b-132), by comparing the distance between both ends of the vacuum pad (512a-11, 512b-11) and the blade most By rotating the vacuum pads (512a-11, 512b-11) at an angle having a close value, it is possible to be compressed in a horizontal state with the blade. According to the present invention, after the vacuum pads 512a-11 and 512b-11 are rotated in a horizontal state, the driving cylinders 511b are operated again by the rotating unit operating module 543a so that the vacuum pads 512a-11 and 512b-11 are operated. To be pressed as it is to the blade 100.

The compression control unit 544 is configured to suck or inject air from the inside of the vacuum pads 512a-11 and 512b-11 so that the compression control unit 544 may be compressed or released from the blade 100, using a separate vacuum pump. To inhale or inject compressed air. To this end, the compression control unit 544 may include an air suction module 544a and an air injection module 544b, and the air in the state in which the vacuum pads 512a-11 and 512b-11 are in close contact with the blade 100. When the air is sucked from the inside of the vacuum pads 512a-11 and 512b-11 by the suction module 544a, the vacuum pads 512a-11 and 512b-11 are compressed and coupled to the blade 100, and the air injection module When air is injected into the vacuum pads 512a-11 and 512b-11 by the 544b, the compression of the vacuum pads 512a-11 and 512b-11 is released and the vacuum pads 512a-11 and 512b-11 are bladed. Rotate away from the 100 and the engaging support 51 can move along the blade 100.

The main body portion 55 is configured to support the respective components of the coupling moving device 5, the coupling support portion 51 is formed in a pair on both sides of the blade 100 is crimped to the blade 100 on both sides of the blade 100 · Combine. The sensor moving part 52 is formed in the main body part 55 so that the movable coupling support part 51 ″ is supported by the main body part 55 to move, and the fixed coupling support part coupled to the main body part 55. 51 'is configured to move together with the main body part 55 in accordance with the operation of the sensor moving part 52.

Referring to FIGS. 19 and 21, the operation of the combined mobile device 5 is moved along the blade 100 of the wind turbine as shown in FIG. 21 (a). By measuring the surface of the blade 100 through the transmission and reception of the defects can be detected. Figure 21 (b) schematically shows the movement of the coupling moving device (5), as shown in Figure 19 (a) the fixed coupling support 51 'and the mobile coupling support 51' 'is the maximum In the state in which the moving body 522 is detected by the first proximity sensing module 524a, the fixed engagement support 51 'and the mobile engagement support 51' are shown in FIG. 21 (b). The state measurement is started in a state in which the blade 100 is compressed and coupled, and the state measurement is preferably started from the inner or outer end of the blade 100. In addition, the movable coupling support part 51 ″ is moved along the blade 100 at a predetermined interval by the operation of the sensor moving part 52, and during the movement, the pressing is released from the blade 100 so that the blade is rotated by the rotating part 511. In order to be spaced apart from the (100) by a predetermined distance, and after being moved to the blade 100 again after a predetermined distance is rotated by a predetermined distance by the rotating unit 511, the first and second fine adjustment unit (512a-2, 512b) -2) is pressed to the blade 100 by adjusting the horizontal state of the vacuum pad (512a-11, 512b-11). And after measuring the state of the blade 100 by the transmission and reception of surface waves, the same process is repeated to move along the blade 100 at regular intervals. When the movable coupling support 51 ″ continues to move, and the movable body 522 is detected by the second proximity sensing module 524b as shown in FIG. 19 (b), the movable coupling support 51 ″ Maintains the state in which the blade 100 is pressed and coupled to the blade 100, the pressing of the fixed coupling support 51 ′ is released, and the fixed coupling support 51 ′ is fixed to the main body part 55 according to the operation of the sensor moving part 52. Will move with. In addition, when the movable body 522 is detected by the first proximity sensing module 524a as shown in FIG. 19 (a), the fixed coupling support 51 ′ again blades 100 as shown in FIG. 21 (b). ), The mobile coupling support 51 ″ moves at regular intervals and repeats the process of transmitting and receiving surface waves. Therefore, the coupling moving device 5 moves along the blade 100 in a state that is stably coupled to the blade 100 and can quickly and easily measure the blade 100 state.

In the above, the Applicant has described various embodiments of the present invention, but these embodiments are merely one embodiment for implementing the technical idea of the present invention, and any changes or modifications may be made to the present invention as long as the technical idea of the present invention is implemented. It should be interpreted as falling within the scope of.

DESCRIPTION OF SYMBOLS 1 Surface wave sensor apparatus 11: Surface wave generator 111: Piezoelectric plate 112: Electrode
11a: low frequency generator 11b: high frequency generator 12: surface wave receiver
121: piezoelectric plate 122: electrode 12a: low frequency
12b: high frequency receiving unit 13: wireless communication unit 14: control unit
141: signal generation module 142: generation signal transmission module 143: light emission control module
15: light emitting unit 3: monitoring device 31: signal control unit
311: operation sensor selection module 312: zone setting module 313: low frequency generation module for each zone
314: high frequency generation area designation module 32: defect analysis unit 321: reception signal analysis unit
322: basic signal storage unit for each receiver 323: defect identification 324: defect determination
33: screen display unit 331: signal display unit for each receiving unit 332: defect information display unit
34: Defect display unit 341: Defective light emitting module 342: Light emission color control module for each defect
343: illuminance control module for each degree 344: failure light emitting module 35: communication unit
5: combined movement
51: engagement support 51 ': fixed engagement support 51'': movable engagement support
511: rotation part 511a: rotation bar 511b: drive cylinder 511c: rotation support bar
512: coupling portion 512a: first coupling portion 512a-1: first pressing portion 512a-11: vacuum pad
512a-12: support member 512a-13: distance sensor module 512a-131: first distance sensor module
512a-132: second distance sensor module 512a-2: first fine adjustment unit 512a-21: rotating member
512a-22: first rotating cylinder 512b: second coupling portion 512b-1: second crimping portion
512b-11: vacuum pad 512b-12: rotary support member 512b-121: rotating shaft
512b-13: distance sensor module 512b-131: first distance sensor module
512b-132: second distance sensor module 512b-2: second fine adjustment unit
512b-21: support bar 512b-22: second rotating cylinder 52: sensor moving part
521: drive means 521a: drive motor 521b: gear body 521c: rotary rod
522: movable member 522a: upper end member 522b: connecting member 523: support means
523a: upper support means 523a-1: guide member 523a-2: movable guide rail
523b: lower support means 523b-1: rail bar 523b-2: insertion guide member
524: proximity sensing means 524a-1: first proximity sensing module 524a-2: second proximity sensing module
53: movable support 531: gap adjusting cylinder 532: support roller
533: distance sensor 54: control unit 541: movement control unit 542: interval control unit
543: rotation control unit 544: crimp control unit 6: the main body

Claims (10)

A surface wave sensor device in close contact with the wind turbine blade and transmitting and receiving surface waves; And a monitoring device that controls the operation of the surface wave sensor device and monitors a blade using surface wave signal information received from the surface wave sensor device.
The surface wave sensor device and the monitoring device is a wind turbine blade state measurement system, characterized in that for transmitting and receiving control signal and surface wave signal information using a wireless signal. According to claim 1, wherein the surface wave sensor device
An electric signal is received by receiving an electric signal and generating a surface wave that is transferred along the surface of the blade. The surface wave generator is positioned at a predetermined distance from the surface wave generator and receives the surface wave generated by the surface wave generator and transferred along the blade surface. And a surface control unit for generating a surface wave, a wireless communication unit for transmitting and receiving a wireless signal with the monitoring device, and a control unit for controlling the operation of the surface wave sensor device according to a control signal transmitted from the monitoring device.
The surface wave generator includes a low frequency generator generating low frequency surface waves and a high frequency generator generating high frequency surface waves.
The surface wave receiver comprises a low frequency receiver for receiving low frequency surface waves generated by the low frequency generator, and a high frequency receiver for receiving high frequency surface waves generated by the high frequency generator. The method of claim 2, wherein the monitoring device
A signal controller for controlling the generation of surface waves by the surface wave generator, a defect analyzer for detecting a defect of a blade by analyzing a signal of the surface wave receiver transmitted from the surface wave sensor device, and a surface signal of the surface wave sensor device and a wireless signal. Including a communication unit for transmitting,
The control unit includes a signal generation module for generating a surface wave signal by the surface wave generator in accordance with the operation of the monitoring device, and a generation signal transfer module for transmitting an electrical signal generated by the surface wave receiver to the monitoring device. Wind turbine blade condition measurement system. The method of claim 3, wherein the signal control unit
Only an operation sensor selection module for selecting a surface wave generator to operate among a plurality of surface wave generators installed in the blade, a zone setting module for classifying the blade into a zone including a plurality of surface wave generators, and one low frequency generator for each zone Wind power generator blade state comprising a low frequency generation module for each zone to operate, and a high frequency generation zone designation module for operating the high frequency generation unit only for a zone where an abnormality is detected by the low frequency generated by the low frequency generation module for each zone. Measuring system. The method of claim 4, wherein the surface wave receiver is
A piezoelectric plate for generating an electrical signal by stress caused by the surface wave generated by the surface wave generator, and an electrode for transmitting the electrical signal generated by the piezoelectric plate to the controller,
The piezoelectric plates of the low frequency unit and the high frequency receiver have a natural frequency equal to the high frequency generated from the low frequency and the high frequency generator generated by the low frequency generator, respectively. The method of claim 5, wherein the surface wave generator
The surface wave is generated only by the low frequency generator,
The low frequency unit and the high frequency receiving unit wind turbine blade state measuring system, characterized in that for receiving the surface wave generated by the low frequency generator to transmit the generated electrical signal to the controller. The method of claim 3, wherein the defect analysis unit
A reception signal analysis unit analyzing the amplitude and phase of the electrical signal generated for each of the plurality of surface wave receivers; A basic signal storage unit for each receiver, which analyzes and stores electrical signals generated at each surface wave receiver in a steady state without blade defects and electrical signals generated at each surface wave receiver according to the type of blade defects; And a defect specifying unit for specifying a location and type of a defect of a blade by comparing amplitude and phase of an electrical signal analyzed by the reception signal analyzer and a basic signal storage unit for each receiver.
The basic signal storage unit for each receiver,
Normal amplitude information storage module that stores the amplitude information of the electrical signal generated by each surface wave receiver in the normal state with no defect of the blade, and phase information of the electrical signal generated through each surface wave receiver in the normal state with no blade defect. Normal phase information storage module for storing the information, Amplitude-specific information storage module for storing the amplitude information of the electrical signal generated through each surface wave receiver according to the type and size of blade defects, and each type according to the type and size of blade defects Includes a phase information storage module for each defect that stores the phase information of the electrical signal generated through the surface wave receiver,
The defect special government
A receiver-specific amplitude comparison module for comparing amplitude information analyzed by the receiver-specific amplitude analysis module with amplitude information stored by the normal amplitude information buffer module and the defect-specific amplitude information storage module; A receiver-specific phase comparison module for comparing the phase information analyzed by the receiver-phase analysis module and the phase information stored by the normal phase information storage module and the defect-specific phase information storage module; A defect type specifying module specifying a type of a defect according to a result compared by the receiver comparison amplitude comparison module and the reception comparison phase comparison module; And a defect position specifying module for identifying a position of a defect by identifying a surface wave receiver in which a defect is specified by the defect type specifying module. The method of claim 7, wherein the defect analysis unit
It includes defect determination to increase the accuracy of defect detection through the occurrence of repetitive surface wave and to detect the failure of surface wave sensor device.
The defect determination may be compared with a repetitive measurement module for repeatedly generating a plurality of surface waves through a surface wave generator at a position where a defect is detected, and a defect comparison module for comparing the types and degrees of defects detected by surface waves generated a plurality of times. A defect determination module for determining a corresponding defect when the type and the degree of a defect match a predetermined number of times, a re-measurement module for automatically generating surface waves repeatedly after a predetermined time when the defect is not determined in the defect determination module, and Wind turbine blade state measurement system, characterized in that it comprises a failure diagnosis module for diagnosing and indicating a failure of the surface wave sensor device when the abnormality is detected by the re-measurement module but the defect is not confirmed. The method of claim 8, wherein the monitoring device
A screen display unit for displaying an electric signal generated by the surface wave receiver on a screen;
The screen display unit includes a signal display unit for each receiver to display electrical signals generated for each of the surface wave receivers, and a defect information display unit for displaying defect information of each surface wave receiver detected by the defect determination.
The receiver-specific signal display unit,
A normal signal display module displaying an electric signal generated by each surface wave receiver in a normal state of the blade on a screen; A reception signal display module for displaying an electric signal generated by each surface wave receiver on a screen during actual measurement; A defect signal display module displaying an electric signal generated by each surface wave receiver on a screen according to the type and size of the defect; And a signal synchronization module for synchronizing the signals displayed on the screen by the normal signal display module, the reception signal display module, and the defect signal display module. The method of claim 7, wherein the monitoring device
And a defect display unit which emits the surface wave sensor device according to defect information of the blade analyzed by the defect analysis unit.
The surface wave sensor device includes a light emitting unit which is formed in each surface wave receiver and emits light according to a control signal transmitted by the defect display unit.
The defect display unit,
Defect part light emitting module for lighting the light emitting part of the detected surface wave receiver is detected by the defect analysis unit, the light emission color control module for each defect to adjust the color lighted by the defect light emitting module according to the type of the defect, and the defect Wind turbine blade state measurement system, characterized in that it comprises a degree-specific illumination control module for adjusting the illumination to be turned on according to the degree of.