Lossless state detection system and detection method based on laser acoustic sensing

Abstract

The invention relates to a nondestructive state detection system and method based on laser sound sensing, and the system comprises a laser transmitter, a laser reflection module, a photoelectric detection module, a data collection module, and an analysis module, the laser reflection module is located at one side of a to-be-detected device, and the photoelectric detection module is located at the other side of the to-be-detected device. The laser emitter and the photoelectric detection module are located on the same side of the laser reflection module, the laser emitter is used for emitting laser beams to the surface of the reflection module, and the laser reflection module is used for guiding and focusing the laser beams from the laser emitter to the photoelectric detection module. The photoelectric detection module is used for receiving the laser beams reflected by the laser reflection module and converting optical signals of the laser beams into electric signals, the data acquisition module is used for processing and amplifying the electric signals from the photoelectric detection module, and the analysis module is used for receiving the electric signals processed and amplified by the data acquisition module so as to analyze the state of the to-be-detected equipment. The detection system is suitable for non-invasive detection of objects, and does not cause damage to detection equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment fault detection, and more specifically, to a non-destructive condition detection system and method based on laser acoustic sensing. Background Art

[0002] Today, with the rapid development of technology, various complex mechanical devices and systems have been widely used in fields such as aerospace, automobile manufacturing, and energy development. However, these devices may face various faults during operation, such as component wear, fracture, loosening, etc. If these faults cannot be detected and processed in a timely manner, it may lead to a decline in equipment performance and even serious accidents.

[0003] To ensure the reliability and safety of equipment, avoid damage to the equipment, and reduce maintenance costs, high-precision non-destructive detection is of crucial importance. However, traditional non-destructive testing methods, such as ultrasonic testing, X-ray testing, and magnetic particle inspection, although they can meet specific engineering detection requirements, also have some significant deficiencies. For example, these methods usually require the equipment to be shut down, physical contact with the equipment, and it is difficult to meet the requirements for detecting damage in the thickness direction of the structure to be measured.

[0004] In recent years, the rapid development of laser technology has provided a new direction for the field of non-destructive condition detection. Lasers have excellent characteristics, including high directivity, high energy density, tunable wavelength, and non-contact, making them a very promising condition detection tool. However, traditional laser detection technology is sensitive to surface characteristics and has high requirements for the surface of the object to be measured; and usually requires accurate beam alignment, which requires additional calibration and adjustment work, increasing the complexity of the system setup; and due to the irradiation of the laser, it may affect the normal operation of precision instruments. Summary of the Invention

[0005] The purpose of the present invention is to overcome the problems in the prior art that traditional laser detection technology has high requirements for the surface of the object to be measured, the laser detection system setup is complex, and the irradiation of the laser may affect the normal operation of precision instruments, and to provide a non-destructive condition detection system and method based on laser acoustic sensing.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is:

[0007] Provided is a non-destructive state detection system based on laser acoustic sensing, comprising a laser emitter, a laser reflection module, a photoelectric detection module, a data acquisition module and an analysis module, wherein the laser reflection module is located at one side of a device to be tested, the laser emitter and the photoelectric detection module are located at the same side of the laser reflection module, the laser emitter is used to emit a laser beam to the surface of the reflection module, the laser reflection module is used to guide and focus the laser beam from the laser emitter to the photoelectric detection module, the photoelectric detection module is used to receive the laser beam reflected by the laser reflection module and convert the optical signal of the laser beam into an electrical signal, the data acquisition module is used to process and amplify the electrical signal from the photoelectric detection module, and the analysis module is used to receive the electrical signal processed and amplified by the data acquisition module to analyze the state of the device to be tested.

[0008] In the technical solution of the present application, since the sound wave in the air is a longitudinal wave (the vibration direction is consistent with the propagation direction), it is also a sparse and dense wave, and different sparse and dense parts will appear along the propagation direction during the propagation process. This vibration will gradually reduce the vibration amplitude due to attenuation during the propagation process, but if it encounters an obstacle, it will generate sound pressure on the surface of the obstacle, thereby causing the obstacle to vibrate, especially for some thin-walled obstacles, the vibration effect will be more obvious. The obstacle used in the present invention is a laser reflection module, and a laser transmitter is used to hit a laser beam on the laser reflection module, and the incident direction of the laser beam is fixed. At this time, when the device to be tested vibrates, it causes air vibration, thereby causing the laser reflection module to vibrate. At this time, the incident angle of the incident laser beam and the exit angle of the reflected laser beam have changed, resulting in a change in the optical power entering the photoelectric detection module. The photoelectric detection module converts the optical signal into an electrical signal, and the data acquisition module collects and processes the electrical signal, and then the data acquisition module transmits the processed electrical signal to the analysis module to analyze the state of the device to be tested.

[0009] The system provides highly accurate measurements due to the laser emitter and precise reflective optical path, and can detect small changes in state or defects. Compared with some traditional detection methods, laser beams usually do not cause damage or interference to the equipment being detected, so they are suitable for non-invasive detection of objects. The detection system can provide almost real-time state detection, fast response and feedback, and is suitable for applications that require fast detection and control. Due to the use of laser beams, the detection system can detect without physical contact, which is very beneficial for the detection of sensitive objects or objects that are difficult to reach. The detection system can achieve long-distance detection, eliminate interference from the external environment, and avoid errors caused by manual entry into the detection area.

[0010] Further, the detection system further includes a speaker module, which is connected to the signal acquisition module for realizing the replay of vibration fault signals.

[0011] Further, the speaker module is connected to the analysis module to realize fault alarm.

[0012] Further, the laser emitter and the device to be measured are respectively located on both sides of the laser reflection module.

[0013] Further, the data acquisition module further includes filtering and conditioning the received electrical signal.

[0014] Further, the analysis module monitors and evaluates the state of the device to be detected in real time according to the received electrical signal, and the state at least includes one of device crack, device defect, and device deformation.

[0015] Further, the detection system further includes a display connected to the analysis module, and the display is used to display the state of the device to be detected.

[0016] On the other hand, the present invention provides a non-destructive state detection method based on laser acoustic sensing, and the method includes: determining the device to be measured, and placing a laser reflection module on one side of the device to be measured; establishing a laser reflection optical path to ensure that the laser beam emitted by the laser emitter is reflected by the laser reflection module to the photoelectric detection module; arranging the laser emission module so that the emitted laser beam is emitted onto the laser reflection module; arranging the photoelectric detection module for receiving the laser beam reflected by the laser reflection module; converting the optical signal carrying vibration information into an electrical signal through the photoelectric detection module; the signal acquisition module receives the converted electrical signal and transmits the electrical signal to the analysis module to analyze the state of the device to be detected.

[0017] Further, the signal acquisition module receives the electrical signal and transmits the electrical signal to the speaker to realize the replay of vibration fault signals, and the speaker is connected to the analysis module to realize fault alarm.

[0018] Further, the steps for the analysis module to analyze the state of the device to be detected according to the electrical signal include:

[0019] Pretreatment: The analysis module preprocesses the received electrical signal;

[0020] Feature extraction: The analysis module performs feature extraction operations, including extracting features related to fault diagnosis from the preprocessed electrical signal data, and these features include frequency, amplitude, phase, and other time or frequency domain features;

[0021] Pattern recognition: By comparing the extracted features with pre-trained patterns or fault models, pattern recognition can be used to detect the presence of anomalies or fault patterns in electrical signals and further classify and diagnose the problem;

[0022] Reporting and Diagnostics: The analysis module generates detailed reports and diagnostic results.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: in the technical solution of the present invention, due to the laser emitter and the precise reflection light path, the system can provide highly accurate measurement results and can detect small state changes or defects. Compared with some traditional detection methods, the laser beam usually does not cause damage or interference to the detected device, so it is suitable for non-invasive detection of objects. The detection system can provide almost real-time state detection, rapid response and feedback, and is suitable for applications that require rapid detection and control. Due to the use of laser beams, the detection system can be detected without physical contact, which is very beneficial for the detection of sensitive objects or objects that are difficult to touch. The detection system can achieve long-distance detection, and can eliminate interference from the external environment to avoid errors caused by manual entry into the detection area. The photoelectric detection module and the laser can be adjusted to select the module that is most suitable for engineering applications to reduce costs. The electrical signal collected by the signal acquisition module can be analyzed and processed by the analysis module to extract the state information of the device to be detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a block diagram of the non-destructive state detection system based on laser acoustic sensing of the present invention;

[0025] Figure 2 It is a schematic diagram of a nondestructive condition detection system based on laser acoustic sensing;

[0026] Figure 3 This is a flow chart of the non-destructive condition detection method based on laser acoustic sensing

[0027] Figure 4 This is an application diagram of a nondestructive testing system based on laser acoustic sensing according to the present invention;

[0028] Figure 5 It is a schematic diagram of the operation flow of the analysis module of the present invention. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with specific embodiments. Among them, the drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation on this patent; in order to better illustrate the embodiments of the present invention, some components in the drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0030] In the drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as a limitation on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] Embodiment 1

[0032] As Figure 1 、 Figure 2 、 Figure 4 shown, it is the first embodiment of the non-destructive state detection system based on laser acoustic sensing of the present invention. The detection system includes a laser emitter, a laser reflection module, a photoelectric detection module, a data acquisition module, and an analysis module. The laser reflection module is located on one side of the device to be tested. The laser emitter and the photoelectric detection module are located on the same side of the laser reflection module. The laser emitter is used to emit a laser beam to the surface of the reflection module. The laser reflection module is used to guide and focus the laser beam from the laser emitter to the photoelectric detection module. The photoelectric detection module is used to receive the laser beam reflected by the laser reflection module and convert the optical signal of the laser beam into an electrical signal. The data acquisition module is used to process and amplify the electrical signal from the photoelectric detection module. The analysis module is used to receive the electrical signal processed and amplified by the data acquisition module to analyze the state of the device to be tested.

[0033] In this embodiment, since sound is a longitudinal wave, that is, the vibration direction is the same as the propagation direction, and at the same time it is also a compression wave, and there will be parts with different densities along the propagation direction during propagation. This vibration will gradually decrease in amplitude due to attenuation during propagation. When a laser reflection module is placed in front of the position to be tested of the vibrating device, since the laser reflection module will propagate the vibration noise of the device to be tested, the laser reflection module will vibrate. As Figure 2As shown, when the laser generator generates the laser beam required by the experimental environment and hits the laser reflection module with the laser beam, the incident direction of the laser beam is ensured to be fixed. When the device under test vibrates and generates sound, it causes air vibration, which in turn causes the laser reflection module to vibrate. At this time, both the incident angle and the reflection angle of the laser beam change. The initial laser beam hits the laser reflection module along the r direction, and the generated reflected laser changes from r2 to r1, resulting in a change in the light intensity of the light spot on the photoelectric detection module, thereby causing a change in the optical power on the detection surface of the photoelectric detection module. Finally, through the action of the photoelectric detection module, the optical signal carrying the vibration signal, that is, the optical signal with continuously changing optical power, is converted into an electrical signal. The data acquisition module collects and processes this electrical signal, and then the data acquisition module transmits the processed electrical signal to the analysis module to analyze the state of the device under test.

[0034] It should be noted that the laser reflection module in this embodiment can be a structure that deforms due to acoustic vibration. Specifically, the laser reflection module can be an aluminum foil film, glass, etc. When a vibration fault occurs in the device under test, this vibration will gradually decrease in amplitude due to attenuation during propagation. When a laser reflection module is placed in front of the position to be measured of the vibrating device, since the laser reflection module will transmit the vibration noise of the device under test, the laser reflection module will vibrate. When the laser reflection module is an aluminum foil film or glass, the vibration effect will be more obvious. The laser reflection module is located between the laser emitter and the device to be detected, and in front of the device to be detected, and is used to guide and focus the laser beam from the laser emitter to the photoelectric detection module. The laser emission module is the starting point of the entire system. The laser emission module generates a high-intensity laser beam with a specific wavelength and power, and this laser beam is used to irradiate the surface of the laser reflection module. The photoelectric detection module is located on one side of the device to be detected. It receives the optical signal reflected from the laser reflection module. This photoelectric detection module can convert the optical signal into an electrical signal and capture information according to the reflection characteristics. The data acquisition module is used to process and amplify the electrical signal from the photoelectric detection module. It can also perform filtering and adjustment to ensure the quality and stability of the electrical signal. The processed signal is transmitted to the analysis module for further analysis.

[0035] It should also be noted that in this embodiment, the mode fusion and mutual conversion of acoustic signals, optical signals, and current signals are a key technology, which makes the state detection of the device under test more comprehensive and accurate. The main content and conversion steps are as follows:

[0036] Transmission of acoustic signals carrying the operating state of the device under test: During the operation or operation of the device, various factors can cause abnormal vibrations of the device and the occurrence of fault events. The essence of an acoustic signal is a vibration signal. During the operation of the device under test, the acoustic signal carrying the operating state information of the device under test propagates in the medium and finally emits from the surface of the device under test, causing the vibration of the laser reflection module through the propagation of the medium. Generally speaking, the vibration signal carrying the operating state of the device under test is transmitted to the laser reflection module through the propagation of the medium by the principle of acoustic propagation.

[0037] Conversion of acoustic signals and optical signals: When the vibration signal or fault signal causes minute vibrations on the surface of the device under test, this vibration propagates through the medium and affects the surface characteristics of the laser reflection module. The laser reflection module can be a reflective film, such as the reflection angle and the shape of the light spot. Therefore, the characteristics of the reflected optical signal change with the change of the surface characteristics of the reflective film. The photoelectric detection module can capture these abnormal optical signals and convert them into electrical signals for further analysis.

[0038] Conversion of optical signals and electrical signals: The optical signal is received by the photosensitive elements of the photoelectric detector module. These photosensitive elements convert the incident light energy into electrons. When the optical signal irradiates the surface of the photosensitive element, photons excite the electrons in the photosensitive element and move them from the valence band to the conduction band, forming electron-hole pairs. A large number of electron-hole pairs are generated through the action of the photoelectric effect, thus forming an electric current. The intensity of this electric current is proportional to the intensity of the incident light. Therefore, the intensity of the optical signal can be determined by measuring the magnitude of the electric current, and thus the operating state of the device can be reflected through the analysis of the electric signal. The current signal passes through a pattern recognition algorithm, which is used to detect and analyze the patterns and features in the current signal of the photoelectric detection component. This step strengthens the monitoring of the device state and makes full use of the electric signal output of the photoelectric detection component.

[0039] Due to the laser emitter and the precise reflection optical path, the system can provide highly accurate measurement results and can detect minute state changes or defects. Compared with some traditional detection methods, the laser beam usually does not cause damage or interference to the device under test, so it is suitable for non-invasive detection of objects. The detection system can provide almost real-time state detection, quick response and feedback, and is suitable for applications that require quick detection and control. Due to the use of the laser beam, the detection system can perform detection without physical contact, which is very beneficial for the detection of sensitive objects or objects that are difficult to access. Through this detection system, long-distance detection can be achieved, and external environmental interference can be excluded, avoiding errors caused by manual entry into the detection area.

[0040] Among them, the detection system further includes a speaker module, which is connected to the signal acquisition module to realize the replay of vibration fault signals. In the present invention, the device vibration and fault signals are first converted into electrical signals, and then the electrical signals carrying the device vibration information are converted into sound signals again through the speaker. In order to ensure that the speaker is not affected by the original operating state of the device when replaying the vibration noise signal, the vibration fault signal needs to be replayed in a space without external interference. By combining the state detection based on electrical signals and the state monitoring based on sound signals, the monitoring accuracy of the present invention is significantly improved. This step further enriches the comprehensive monitoring of the device state, and at the same time, combined with the previously captured optical signals and current signals, it provides a multi-mode fusion state detection.

[0041] In addition, the speaker module is connected to the analysis module to realize fault alarm. When the analysis module obtains the fault diagnosis conclusion of the device to be tested, it sends a feedback signal, and the speaker module gives an alarm.

[0042] Among them, the laser emitter and the device to be tested are respectively located on both sides of the laser reflection module.

[0043] In addition, the data acquisition module also includes filtering and conditioning the received electrical signals. The data acquisition module can also filter and condition the received electrical signals to ensure the quality and stability of the signals. The processed electrical signals are transmitted to the next analysis module for analysis. Specifically, methods such as Kalman filtering or mean filtering can be used to eliminate noise and enhance the signal quality to ensure the stability and accuracy of the signals.

[0044] Among them, the analysis module monitors and evaluates the state of the device to be tested in real time according to the received electrical signals, and the state at least includes one of device cracks, device defects, and device deformations. The analysis module is used to receive and analyze the data from the data acquisition module. The analysis module uses pre-defined algorithms and models. The analysis module can monitor and evaluate the state of the device to be tested in real time, including cracks, defects, deformations, etc.

[0045] In addition, the detection system further includes a display connected to the analysis module, and the display is used to display the state of the device to be tested. The detection results can be displayed on the display screen for visualizing the calculated data results, facilitating the experimenter to observe the actual operating state of the object to be tested, and can be transmitted to other devices or systems through the interface.

[0046] Embodiment 2

[0047] Such as Figure 3As shown in the figure, a non-destructive condition detection method based on laser acoustic sensing, the method comprising: determining a device to be measured, and placing a laser reflection module on one side of the device to be measured; establishing a laser reflection optical path to ensure that the laser beam emitted by the laser emitter is reflected by the laser reflection module to the photoelectric detection module; arranging the laser emission module such that the emitted laser beam is emitted onto the laser reflection module; arranging the photoelectric detection module for receiving the laser beam reflected by the laser reflection module; converting the optical signal carrying vibration information into an electrical signal through the photoelectric detection module; the signal acquisition module receiving the converted electrical signal and transmitting the electrical signal to the analysis module to analyze the state of the device to be measured. It should be noted that the laser emission module may be a laser generator.

[0048] Embodiment 3

[0049] The difference from Embodiment 2 lies in that the processing process of the analysis module for the received electrical signal is as follows, as Figure 5 shown, the analysis module receives the electrical signal data from the data acquisition module, these data are from the photoelectric detection module, and the electrical signal data contains the vibration information of the device to be measured;

[0050] Signal preprocessing, the goal of this step is to remove noise, filter and enhance the signal quality to prepare the data for subsequent analysis. Signal preprocessing helps to improve the accuracy of subsequent analysis;

[0051] Feature extraction, the module performs feature extraction operations, including extracting features related to fault diagnosis from the preprocessed electrical signal data, these features including frequency, amplitude, phase and other time or frequency domain features;

[0052] Pattern recognition, comparing the extracted features with a pre-trained pattern or fault model. Pattern recognition can be used to detect whether there are abnormal or fault patterns in the electrical signal and further classify and diagnose the problem;

[0053] Report and diagnosis, the module generates a detailed report and diagnosis result. The report includes information about the detected fault type, location and severity. In addition, the module can also provide repair and maintenance suggestions to help the operator take necessary measures to solve the problem.

[0054] It should be noted that the analysis module performs processing such as feature extraction, frequency domain analysis, pattern recognition, etc. on the electrical signal, specifically including: using spectrum analysis to extract frequency features, envelope analysis to extract amplitude features, time-frequency analysis to extract instantaneous frequency features, using support vector machine (SVM) or k-nearest neighbor (KNN) algorithms for pattern recognition, and transmitting the processed signal to the PC display terminal to achieve data visualization.

[0055] Further, the signal acquisition module receives an electrical signal and transmits the electrical signal to a speaker to achieve vibration fault signal replay, and the speaker is connected to the analysis module to achieve fault alarm.

[0056] Further, the analysis module performs feature extraction and pattern recognition processing on the electrical signal, and transmits the processed signal to a display terminal to achieve data visualization.

[0057] In the specific content of the above specific embodiments, the technical features can be combined arbitrarily without contradiction. For the sake of concise description, not all possible combinations of the above technical features are described. However, as long as these combinations of technical features do not exist in contradiction, they should be considered to be within the scope described in this specification.

[0058] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the embodiments of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the embodiments here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A non-destructive condition detection system based on laser-acoustic sensing, characterized in that, It includes a laser emitter, a laser reflection module, a photoelectric detection module, a data acquisition module, and an analysis module. The laser reflection module is located on one side of the device under test. The laser emitter and the photoelectric detection module are located on the same side of the laser reflection module. The laser emitter is used to emit a laser beam onto the surface of the reflection module. The laser reflection module is used to guide and focus the laser beam from the laser emitter to the photoelectric detection module. The photoelectric detection module is used to receive the laser beam reflected by the laser reflection module and convert the optical signal of the laser beam into an electrical signal. The data acquisition module is used to process and amplify the electrical signal from the photoelectric detection module. The analysis module is used to receive the electrical signal processed and amplified by the data acquisition module to analyze the state of the device under test.

2. The non-destructive state detection system based on laser acoustic sensing according to claim 1, characterized in that, The detection system further includes a speaker module, and the speaker module is connected to the signal acquisition module for realizing the replay of vibration fault signals.

3. The non-destructive state detection system based on laser acoustic sensing according to claim 2, characterized in that, The speaker module is connected to the analysis module to realize fault alarm.

4. The non-destructive condition detection system based on laser acoustic sensing according to claim 1, characterized in that The laser emitter and the device under test are respectively located on both sides of the laser reflection module.

5. The non-destructive state detection system based on laser acoustic sensing according to claim 1, wherein The data acquisition module further includes filtering and conditioning the received electrical signal.

6. The non-destructive condition detection system based on laser acoustic sensing according to claim 1, characterized in that, The analysis module monitors and evaluates the state of the device to be detected in real time according to the received electrical signal, and the state at least includes one of device crack, device defect, and device deformation.

7. The non-destructive condition detection system based on laser acoustic sensing according to claim 6, wherein The detection system further includes a display connected to the analysis module, and the display is used to display the state of the device to be detected.

8. A non-destructive condition detection method based on laser acoustic sensing, characterized in that, Applying the non-destructive state detection system based on laser acousto-sensing according to any one of claims 1 to 7, the method includes: determining the device under test, and placing a laser reflection module on one side of the device under test; establishing a laser reflection optical path to ensure that the laser beam emitted by the laser emitter is reflected by the laser reflection module to the photoelectric detection module; arranging the laser emission module so that the emitted laser beam is emitted onto the laser reflection module; arranging the photoelectric detection module for receiving the laser beam reflected by the laser reflection module; converting the optical signal carrying vibration information into an electrical signal through the photoelectric detection module; the signal acquisition module receives the converted electrical signal and transmits the electrical signal to the analysis module to analyze the state of the device under test.

9. The non-destructive condition detection method based on laser acoustic sensing according to claim 8, characterized in that The signal acquisition module receives the electrical signal and transmits the electrical signal to the speaker to realize the replay of vibration fault signals, and the speaker is connected to the analysis module for realizing fault alarm.

10. The non-destructive state detection method based on laser acoustic sensing according to claim 8, characterized in that The analysis of the state of the device under test by the analysis module according to the electrical signal includes the following steps: Pretreatment: The analysis module preprocesses the received electrical signal. Feature extraction: The analysis module performs feature extraction operations, including extracting features related to fault diagnosis from the preprocessed electrical signal data, and these features include frequency, amplitude, phase, and time or frequency domain features. Pattern recognition: Comparing the extracted features with a pre-trained pattern or fault model, and pattern recognition is used to detect whether there are abnormal or fault patterns in the electrical signal, and further classify and diagnose the problem. Report and diagnosis: The analysis module generates a detailed report and diagnosis result.

Images