Electromagnetic ultrasonic omnidirectional accurate detection and anti-interference system

Abstract

The invention belongs to the technical field of electromagnetic ultrasonic, and provides an electromagnetic ultrasonic omnidirectional accurate detection and anti-interference system, which comprises an electromagnetic ultrasonic transmitting module, a signal processing module, a signal processing module and a signal processing module, the electromagnetic ultrasonic receiving module receives the reflected ultrasonic signal and converts the reflected ultrasonic signal into an electric signal; the multi-array detection module is used for controlling excitation and receiving time sequences of different arrays and carrying out omnidirectional emission and receiving of ultrasonic waves; the beam forming and signal processing module is used for carrying out beam forming and signal processing on the received ultrasonic signals to form ultrasonic beams pointing to a specific direction and extracting feature information; the anti-interference module monitors the noise level of the surrounding environment and inhibits interference signals. The intelligent control module is used for monitoring the running state and the quality of the received signal and carrying out diagnosis and early warning on a fault; through dynamic noise suppression and signal quality monitoring, the intensity and definition of effective signals can be remarkably improved, interference is reduced, and therefore a more efficient detection result is achieved.

Description

Technical Field

[0001] The present invention belongs to the field of electromagnetic ultrasonic technology, in particular to an electromagnetic ultrasonic omnidirectional precise detection and anti-interference system. Background Art

[0002] Electromagnetic ultrasonic detection technology has been widely used in industrial detection, environmental monitoring, safety protection and other fields. This technology combines the advantages of electromagnetic and ultrasonic waves to achieve efficient target detection and positioning;

[0003] However, traditional detection systems often rely on unidirectional or limited-directional signal transmission and reception capabilities. This design often leads to signal loss or misjudgment in complex environments, especially in the presence of multipath reflections or strong interference sources, thereby reducing the accuracy and reliability of detection. In addition, the detection range of traditional systems is limited, making it difficult to achieve omnidirectional detection and failing to fully utilize signal information in the surrounding environment.

[0004] Secondly, the existing electromagnetic ultrasonic system is insufficient in anti-interference ability. Many devices are easily affected when facing electromagnetic interference or environmental noise, resulting in a decrease in signal quality. This not only affects the accuracy of detection, but also increases the complexity of subsequent signal processing, and often requires a large amount of post-data cleaning and error correction. In addition, the existing technology is mostly static in signal processing and parameter adjustment, and lacks adaptive capabilities. Due to the variability of the environment and target signals, this fixed parameter setting often cannot meet the needs of real-time detection. When signal conditions change, traditional systems cannot be adjusted in time, further affecting detection efficiency.

[0005] To this end, those skilled in the art have proposed an electromagnetic ultrasonic omnidirectional precision detection and anti-interference system, aiming to achieve more efficient and reliable detection results. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides an electromagnetic ultrasonic omnidirectional precise detection and anti-interference system to solve the problems raised in the background technology.

[0007] An electromagnetic ultrasonic omnidirectional precise detection and anti-interference system, comprising:

[0008] An electromagnetic ultrasonic transmitting module, used for generating and exciting ultrasonic waves;

[0009] An electromagnetic ultrasonic receiving module is used to receive the reflected ultrasonic signal and convert it into an electrical signal;

[0010] Multi-array detection module, used to control the excitation and reception timing of different arrays, and perform omnidirectional transmission and reception of ultrasonic waves;

[0011] The beamforming and signal processing module is used to perform beamforming and signal processing on the received ultrasonic signal, form an ultrasonic beam pointing in a specific direction by adjusting the weight and phase of each element in the array, and process the signal to extract feature information;

[0012] Anti-interference module, used to monitor the noise level of the surrounding environment and suppress interference signals;

[0013] The intelligent control module is used to monitor the operating status and quality of the received signal, automatically adjust parameters, perform pattern recognition and classification on the received signal, and diagnose and warn of faults.

[0014] Preferably, the electromagnetic ultrasonic transmitting module excites ultrasonic waves using an electromagnetic coupling method, and forms induced eddy currents on the surface of the specimen by passing a high-frequency excitation current through the high-frequency coil. The induced eddy currents are acted upon by the Lorentz force under the action of an external magnetic field, thereby generating electromagnetic ultrasound.

[0015] Preferably, the electromagnetic ultrasonic receiving module uses an eddy current coil to receive reflected ultrasonic signals. When the ultrasonic wave encounters an object with different acoustic impedance, it is reflected, and the reflected wave is received by the eddy current coil and converted into an electrical signal.

[0016] Preferably, the array configuration of the multi-array detection module is to include one or more piezoelectric elements in each array unit for converting electrical signals into ultrasonic waves for transmission or converting ultrasonic waves into electrical signals for reception;

[0017] During the transmission process, a digital signal generator is used to generate ultrasonic excitation signals of various frequencies and waveforms. The excitation timing of each array unit is controlled separately through a multi-channel driving circuit. For each array unit i, its excitation signal is expressed as:

[0018] S i (t) = A i ·cos(2πf θ t+φ i )

[0019] Among them, A i represents the amplitude, f θ Indicates the ultrasonic frequency, φ i Indicates phase delay and forms an ultrasonic beam pointing in a specific direction;

[0020] During the receiving process, each array unit receives the reflected ultrasonic signal. Each array receives the reflected ultrasonic signal in real time within the specified time window after the excitation signal is transmitted. The received signal of each array is converted into an electrical signal through an analog-to-digital converter. For each array unit i, the received signal is expressed as:

[0021] R i(t) = S i (t)+N i (t)

[0022] Among them, S i (t) represents the excited ultrasonic signal, N i (t) represents the noise signal.

[0023] Preferably, the beam forming and signal processing module performs weighting and delay processing on the received signal, and forms a focused beam in space by adjusting the signal of each sensor, and its directivity is controlled by phase difference and gain;

[0024] Through the array of M sensors, the received signal is expressed as:

[0025] y m (t) = s(t-τ m )+n m (t)(m=1,2,...,M)

[0026] Among them, y m (t) represents the signal received by the mth sensor, s(t) represents the target signal, τ m represents the time delay of the mth sensor receiving the target signal, n m (t) noise component; then the determination of the time delay is expressed as:

[0027]

[0028] Where d is the array spacing, θ is the target azimuth, and c is the speed of sound;

[0029] The goal of beamforming is to weightedly superimpose the output signals of all sensors to form a signal pointing in a specific direction. The output signal after beamforming is:

[0030]

[0031] Among them, ω m Represents the weight, and the signal of each sensor is passed through the corresponding weight ω m Make adjustments.

[0032] Preferably, after the beamforming, features are extracted from the synthesized signal, and Fourier transform is performed on the synthesized signal:

[0033]

[0034] Among them, Y(f) represents the frequency domain signal, and feature extraction is performed on it, which is expressed as: E(f)=|Y(f) 2 , the energy spectrum of the signal is calculated.

[0035] Preferably, the anti-interference module monitors the noise level of the surrounding environment in real time through a noise sensor, directly monitors the amplitude of the signal through a receiving sensor, and compares it with a preset threshold value, and an amplitude signal exceeding the threshold value indicates the presence of interference;

[0036] When noise is detected, the anti-interference module suppresses interference signals through two methods: active interference suppression and passive noise elimination. The active interference suppression uses beamforming to combine the directional difference between the signal received from the target direction and the noise signal to enhance the signal pointing to the target and suppress interference from other directions. The passive noise elimination suppresses interference by subtracting the estimated noise spectrum from the observed signal, which is expressed as:

[0037] S(f)=Y(f)-N(f)

[0038] Wherein, S(f) represents the denoised signal, Y(f) represents the received signal, and N(f) represents the estimated noise signal.

[0039] Preferably, the intelligent control module collects state indicators through sensors and calculates signal quality indicators in real time, which are expressed as:

[0040]

[0041] Where S i Indicates the signal strength of each sampling point, N indicates the number of sampling points, Q s Indicates the signal quality evaluation value;

[0042] Then calculate the ratio of effective signal power to noise power to determine the signal quality, expressed as:

[0043]

[0044] Among them, P s Represents the effective signal power, P n is the noise power; when it is detected that the signal quality is degraded or the operating status is abnormal, the intelligent control module automatically adjusts the system parameters.

[0045] Preferably, the intelligent control module performs pattern recognition and classification on the received signal and extracts features using wavelet transform: where ψ a,b (t) represents the wavelet function, x(t) represents the input signal, and then the different modes are classified by establishing a hyperplane;

[0046] The intelligent control module performs fault diagnosis through real-time monitoring data and algorithm analysis, performs fault detection based on the model, and determines whether the actual operating state deviates from the model prediction, which is expressed as: Where D(t) represents the fault detection index, R(t) represents the real state, Represents the model prediction status;

[0047] By setting the threshold of the quality indicator, an alarm is triggered when the threshold is exceeded.

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] 1. Through dynamic noise suppression and signal quality monitoring, the system of the present invention can significantly improve the strength and clarity of effective signals and reduce interference; it can also monitor environmental noise in real time and intelligently adjust processing parameters, thereby effectively reducing the impact of external interference, and automatically adjust parameters to adapt to environmental changes, so that the system can maintain stable performance under different operating conditions.

[0050] 2. The present invention can quickly and accurately classify target signals, improve response speed, and through real-time monitoring and diagnosis of operating status, potential faults can be identified in the early stages, thereby reducing the risk of system downtime and improving safety. The efficient detection and accurate classification of the system improves resource utilization and reduces unnecessary time and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 This is a block diagram of the electromagnetic ultrasonic omnidirectional precise detection and anti-interference system of the present invention. DETAILED DESCRIPTION

[0052] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0053] As attached Figure 1 As shown:

[0054] Embodiment 1: The present invention provides an electromagnetic ultrasonic omnidirectional precision detection and anti-interference system, including: an electromagnetic ultrasonic transmitting module, used to generate and excite ultrasonic waves; an electromagnetic ultrasonic receiving module, used to receive reflected ultrasonic signals and convert them into electrical signals; a multi-array detection module, used to control the excitation and receiving timing of different arrays, and perform omnidirectional transmission and reception of ultrasonic waves; a beam forming and signal processing module, used to perform beam forming and signal processing on the received ultrasonic signal, by adjusting the weight and phase of each element in the array, to form an ultrasonic beam pointing to a specific direction, and to process the signal to extract feature information; an anti-interference module, used to monitor the noise level of the surrounding environment and suppress interference signals; an intelligent control module, used to monitor the operating status and the quality of the received signal, automatically adjust parameters, perform pattern recognition and classification on the received signal, and diagnose and warn of faults.

[0055] The electromagnetic ultrasonic transmitting module uses the electromagnetic coupling method to excite ultrasonic waves. By passing a high-frequency excitation current through the high-frequency coil, an induced eddy current is formed on the surface of the specimen. The induced eddy current is acted upon by the Lorentz force under the action of an external magnetic field, thereby generating electromagnetic ultrasound.

[0056] The electromagnetic ultrasonic receiving module uses an eddy current coil to receive the reflected ultrasonic signal. When the ultrasonic wave encounters an object with different acoustic impedance, it is reflected. The reflected wave is received by the eddy current coil and converted into an electrical signal.

[0057] The array configuration of the multi-array detection module is to include one or more piezoelectric elements in each array unit for converting electrical signals into ultrasonic waves for transmission or converting ultrasonic waves into electrical signals for reception;

[0058] During the transmission process, a digital signal generator is used to generate ultrasonic excitation signals of various frequencies and waveforms. Through a multi-channel driving circuit, the excitation timing of each array unit is controlled separately. Different arrays can be excited at different times to prevent mutual interference of signals and realize time multiplexing. For each array unit i, its excitation signal is expressed as:

[0059] S i (t) = A i ·cos(2πf θ t+φ i )

[0060] Among them, A i represents the amplitude, f θ Indicates the ultrasonic frequency, φ i Indicates phase delay and forms an ultrasonic beam pointing in a specific direction;

[0061] During the receiving process, each array unit receives the reflected ultrasonic signal. Each array receives the reflected ultrasonic wave in real time within the specified time window after the excitation signal is transmitted. The received signal of each array is converted into an electrical signal through an analog-to-digital converter, and a time synchronization mechanism is used to ensure that each array receives the signal within the same time window. Synchronization is achieved through an accurate clock source. For each array unit i, the received signal is expressed as:

[0062] R i (t) = S i (t)+N i (t)

[0063] Among them, S i (t) represents the excited ultrasonic signal, N i(t) represents the noise signal. The key role of the multi-array detection module in the electromagnetic ultrasonic omnidirectional precision detection system is to achieve efficient beam forming and signal reception. Through the application of excitation and reception control, flexible timing adjustment and intelligent algorithms, the detection accuracy and anti-interference ability of the system are improved.

[0064] The beamforming and signal processing module performs weighting and delay processing on the received signals, and forms a focused beam in space by adjusting the signal of each sensor, whose directivity is controlled by phase difference and gain;

[0065] Through the array of M sensors, the received signal is expressed as:

[0066] y m (t) = s(t-τ m )+n m (t)(m=1,2,...,M)

[0067] Among them, y m (t) represents the signal received by the mth sensor, s(t) represents the target signal, τ m represents the time delay of the mth sensor receiving the target signal, n m (t) noise component; then the determination of the time delay is expressed as:

[0068]

[0069] Where d is the array spacing, θ is the target azimuth, and c is the speed of sound;

[0070] The goal of beamforming is to weightedly superimpose the output signals of all sensors to form a signal pointing in a specific direction. The output signal after beamforming is:

[0071]

[0072] Among them, ω m Represents the weight, and the signal of each sensor is passed through the corresponding weight ω m Make adjustments.

[0073] After beamforming, features are extracted from the synthesized signal and Fourier transform is performed on the synthesized signal:

[0074]

[0075] Among them, Y(f) represents the frequency domain signal, and feature extraction is performed on it, which is expressed as: E(f)=|Y(f) 2, the energy spectrum of the signal is calculated. By performing beamforming and signal processing on the received ultrasonic signal, the target signal can be effectively extracted and interference can be suppressed. Through precise weight and phase adjustment, combined with signal processing algorithms, efficient target detection and recognition can be achieved.

[0076] The anti-interference module monitors the noise level of the surrounding environment in real time through the noise sensor, directly monitors the amplitude of the signal through the receiving sensor, and compares it with the preset threshold. If the amplitude signal exceeds the threshold, it indicates the presence of interference. At the same time, the fast Fourier transform is used to convert the time domain signal to the frequency domain, analyze the energy distribution of different frequency bands, and identify the noise frequency components.

[0077] When noise is detected, the anti-interference module suppresses interference signals through active interference suppression and passive noise elimination. Active interference suppression uses beamforming to combine the directional difference between the signal received from the target direction and the noise signal to enhance the signal pointing to the target and suppress interference from other directions. It also uses array signal processing technology to measure the phase and time difference of multiple sensors, estimate the direction of the interference source, and form a reverse beam to suppress specific interference sources. Passive noise elimination suppresses interference by subtracting the estimated noise spectrum from the observed signal, which is expressed as:

[0078] S(f)=Y(f)-N(f)

[0079] Among them, S(f) represents the denoised signal, Y(f) represents the received signal, and N(f) represents the estimated noise signal. That is, the process of the anti-interference module is: use the sensor array to collect audio or other interference signals in the surrounding environment in real time; monitor and analyze the noise level of the collected signal in real time, and dynamically update the noise model; use the signal processing algorithm to analyze the signal characteristics and identify the frequency and amplitude of the interference signal; select the beamforming and filtering method according to the current noise level to suppress interference; evaluate the quality of the processed signal to ensure the integrity and availability of the target signal.

[0080] The anti-interference module can effectively monitor the surrounding noise level and suppress interference signals, ensuring the stable performance of the electromagnetic ultrasonic omnidirectional precision detection system.

[0081] The intelligent control module collects status indicators through sensors and calculates signal quality indicators in real time, which are expressed as:

[0082]

[0083] Where S i Indicates the signal strength of each sampling point, N indicates the number of sampling points, Q s Indicates the signal quality evaluation value;

[0084] Then calculate the ratio of effective signal power to noise power to determine the signal quality, expressed as:

[0085]

[0086] Among them, P s Represents the effective signal power, P n is the noise power; when the signal quality is detected to be degraded or the operating status is abnormal, the intelligent control module automatically adjusts the system parameters and optimizes adaptively through the feedback mechanism:

[0087]

[0088] Among them, u(t) represents the control output, e(t) represents the error, K p , K i , K d Represent the control parameters respectively.

[0089] The intelligent control module also performs pattern recognition and classification on the received signals, using wavelet transform to extract features: where ψ a,b (t) represents the wavelet function, x(t) represents the input signal, and then the different modes are classified by establishing a hyperplane;

[0090] The intelligent control module performs fault diagnosis through real-time monitoring data and algorithm analysis, performs fault detection based on the model, and determines whether the actual operating status deviates from the model prediction, which is expressed as: Where D(t) represents the fault detection index, R(t) represents the real state, Indicates the prediction status of the model; by setting the threshold of the quality indicator, an alarm is triggered when the threshold is exceeded. That is, if Q s <Q t , an alarm is triggered; at the same time, the Markov process model is used to predict the health status of the system: P(s t+1 s t )=Transition Probability, which is used to evaluate the possibility of future states and thus provide early warning of potential failures.

[0091] The intelligent control module ensures the stable operation of the electromagnetic ultrasonic system by real-time monitoring of system status, evaluating signal quality, automatically adjusting parameters, and performing pattern recognition and fault diagnosis.

[0092] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application. Without departing from the scope of the present invention, other replacements, improvements, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to specific embodiments, but extends to a variety of modifications still falling within the scope of the appended claims.

[0093] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0094] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, without undue experimentation, the development effort will be a routine task of design, fabrication, and production.

[0095] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An electromagnetic ultrasonic omnidirectional precise detection and anti-interference system, characterized in that: include: An electromagnetic ultrasonic transmitting module, used for generating and exciting ultrasonic waves; An electromagnetic ultrasonic receiving module is used to receive the reflected ultrasonic signal and convert it into an electrical signal; Multi-array detection module, used to control the excitation and reception timing of different arrays, and perform omnidirectional transmission and reception of ultrasonic waves; The beamforming and signal processing module is used to perform beamforming and signal processing on the received ultrasonic signal, form an ultrasonic beam pointing in a specific direction by adjusting the weight and phase of each element in the array, and process the signal to extract feature information; Anti-interference module, used to monitor the noise level of the surrounding environment and suppress interference signals; The intelligent control module is used to monitor the operating status and quality of the received signal, automatically adjust parameters, perform pattern recognition and classification on the received signal, and diagnose and warn of faults.

2. The electromagnetic ultrasonic omnidirectional precise detection and anti-interference system as claimed in claim 1, characterized in that: The electromagnetic ultrasonic transmitting module excites ultrasonic waves by electromagnetic coupling method. By passing high-frequency excitation current to the high-frequency coil, induced eddy currents are formed on the surface of the test piece. The induced eddy currents are acted upon by Lorentz force under the action of an external magnetic field, thereby generating electromagnetic ultrasound.

3. The electromagnetic ultrasonic omnidirectional precise detection and anti-interference system as claimed in claim 1, characterized in that: The electromagnetic ultrasonic receiving module uses an eddy current coil to receive reflected ultrasonic signals. When ultrasonic waves encounter objects with different acoustic impedances, they are reflected, and the reflected waves are received by the eddy current coil and converted into electrical signals.

4. The electromagnetic ultrasonic omnidirectional precise detection and anti-interference system as claimed in claim 1, characterized in that: The array configuration of the multi-array detection module is to include one or more piezoelectric elements in each array unit for converting electrical signals into ultrasonic waves for transmission or converting ultrasonic waves into electrical signals for reception; During the transmission process, a digital signal generator is used to generate ultrasonic excitation signals of various frequencies and waveforms. The excitation timing of each array unit is controlled separately through a multi-channel driving circuit. For each array unit i, its excitation signal is expressed as: S i (t)=A i ·cos(2πf θ t+φ i ) Among them, A i represents the amplitude, f θ Indicates the ultrasonic frequency, φ i Indicates phase delay and forms an ultrasonic beam pointing in a specific direction; During the receiving process, each array unit receives the reflected ultrasonic signal. Each array receives the reflected ultrasonic signal in real time within the specified time window after the excitation signal is transmitted. The received signal of each array is converted into an electrical signal through an analog-to-digital converter. For each array unit i, the received signal is expressed as: R i (t)=S i (t)+N i (t) Among them, S i (t) represents the excited ultrasonic signal, N i (t) represents the noise signal.

5. The electromagnetic ultrasonic omnidirectional precise detection and anti-interference system as claimed in claim 1, characterized in that: The beam forming and signal processing module performs weighting and delay processing on the received signal, and forms a focused beam in space by adjusting the signal of each sensor, and its directivity is controlled by phase difference and gain; Through the array of M sensors, the received signal is expressed as: y m (t)=s(t-τ m )+n m (t)(m=1,2,...,M) Among them, y m (t) represents the signal received by the mth sensor, s(t) represents the target signal, τ m represents the time delay of the mth sensor receiving the target signal, n m (t) noise component; then the determination of the time delay is expressed as: Where d is the array spacing, θ is the target azimuth, and c is the speed of sound; The goal of beamforming is to weightedly superimpose the output signals of all sensors to form a signal pointing in a specific direction. The output signal after beamforming is: Among them, ω m Represents the weight, and the signal of each sensor is passed through the corresponding weight ω m Make adjustments.

6. The electromagnetic ultrasonic omnidirectional precise detection and anti-interference system as claimed in claim 5, characterized in that: After the beamforming, features are extracted from the synthesized signal and Fourier transform is performed on the synthesized signal: Among them, Y(f) represents the frequency domain signal, and feature extraction is performed on it, which is expressed as: E(f)=|Y(f) 2 , the energy spectrum of the signal is calculated.

7. The electromagnetic ultrasonic omnidirectional precise detection and anti-interference system as claimed in claim 1, characterized in that: The anti-interference module monitors the noise level of the surrounding environment in real time through the noise sensor, directly monitors the amplitude of the signal through the receiving sensor, and compares it with a preset threshold. If the amplitude signal exceeds the threshold, it indicates the presence of interference; When noise is detected, the anti-interference module suppresses interference signals through two methods: active interference suppression and passive noise elimination. The active interference suppression utilizes beamforming combined with the directional difference between the signal received from the target direction and the noise signal to enhance the signal pointing to the target and suppress interference from other directions; the passive noise cancellation suppresses interference by subtracting the estimated noise spectrum from the observed signal, which is expressed as: S(f)=Y(f)-N(f) Wherein, S(f) represents the denoised signal, Y(f) represents the received signal, and N(f) represents the estimated noise signal.

8. The electromagnetic ultrasonic omnidirectional precise detection and anti-interference system as claimed in claim 1, characterized in that: The intelligent control module collects status indicators through sensors and calculates signal quality indicators in real time, which are expressed as: Where S i Indicates the signal strength of each sampling point, N indicates the number of sampling points, Q s Indicates the signal quality evaluation value; Then calculate the ratio of effective signal power to noise power to determine the signal quality, expressed as: Among them, P s Represents the effective signal power, P n is the noise power; when it is detected that the signal quality is degraded or the operating status is abnormal, the intelligent control module automatically adjusts the system parameters.

9. An electromagnetic ultrasonic omnidirectional precise detection and anti-interference system as claimed in claim 8, characterized in that: The intelligent control module performs pattern recognition and classification on the received signal and extracts features using wavelet transform: where ψ a,b (t) represents the wavelet function, x(t) represents the input signal, and then the different modes are classified by establishing a hyperplane; The intelligent control module performs fault diagnosis through real-time monitoring data and algorithm analysis, performs fault detection based on the model, and determines whether the actual operating state deviates from the model prediction, which is expressed as: Where D(t) represents the fault detection index, R(t) represents the real state, Represents the model prediction status; By setting the threshold of the quality indicator, an alarm is triggered when the threshold is exceeded.

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