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Fazil Arkhipov
Fazil Arkhipov

Condition Monitoring Algorithms In MATLAB Free ... Fixed


You can organize and analyze sensor data imported from local files, cloud storage, and distributed file systems. You can label simulated failure data generated from Simulink models. The toolbox includes reference examples for motors, gearboxes, batteries, pumps, bearings, and other machines that can be reused for developing custom predictive maintenance and condition monitoring algorithms.




Condition Monitoring Algorithms in MATLAB free ...


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This book offers the first comprehensive and practice-oriented guide to condition monitoring algorithms in MATLAB. After a concise introduction to vibration theory and signal processing techniques, the attention is moved to the algorithms. Each signal processing algorithm is presented in depth, from the theory to the application, and including extensive explanations on how to use the corresponding toolbox in MATLAB. In turn, the book introduces various techniques for synthetic signals generation, as well as vibration-based analysis techniques for large data sets. A practical guide on how to directly access data from industrial condition monitoring systems (CMS) using MATLAB .NET Libraries is also included. Bridging between research and practice, this book offers an extensive guide on condition monitoring algorithms to both scholars and professionals.


Condition Monitoring Algorithms in MATLAB is a great resource for anyone in the field of condition monitoring. It is a unique as it presents the theory, and a number of examples in Matlab, which greatly improve the learning experience. It offers numerous examples of coding styles in Matlab, thus supporting graduate students and professionals writing their own codes."


Acquiring data is the first step in developing any predictive maintenance algorithm. AI algorithms are only accurate if they have robust training data that represents the types of failures you want to predict. It is therefore important to collect data that represents the machine under both healthy and failing conditions.


Unsupervised learning methods are best suited to applications such as anomaly detection where the goal is to classify incoming condition indicator values from equipment as either normal or anomalous. As unsupervised learning methods do not require labeled training data corresponding to different failure modes, they tend to be very popular for engineers trying to develop predictive maintenance algorithms for the first time.


Abstract:Operation and maintenance (O&M) activities represent a significant share of the total expenditure of a wind farm. Of these expenses, costs associated with unexpected failures account for the highest percentage. Therefore, it is clear that early detection of wind turbine (WT) failures, which can be achieved through appropriate condition monitoring (CM), is critical to reduce O&M costs. The use of Supervisory Control and Data Acquisition (SCADA) data has recently been recognized as an effective solution for CM since most modern WTs record large amounts of parameters using their SCADA systems. Artificial intelligence (AI) techniques can convert SCADA data into information that can be used for early detection of WT failures. This work presents a systematic literature review (SLR) with the aim to assess the use of SCADA data and AI for CM of WTs. To this end, we formulated four research questions as follows: (i) What are the current challenges of WT CM? (ii) What are the WT components to which CM has been applied? (iii) What are the SCADA variables used? and (iv) What AI techniques are currently under research? Further to answering the research questions, we identify the lack of accessible WT SCADA data towards research and the need for its standardization. Our SLR was developed by reviewing more than 95 scientific articles published in the last three years.Keywords: condition monitoring; wind turbine; SCADA data; artificial intelligence; fault prediction


Abstract:Recent advances in mobile technology have created a shift towards using battery-driven devices in remote monitoring settings and smart homes. Clinicians are carrying out diagnostic and screening procedures based on the electrocardiogram (ECG) signals collected remotely for outpatients who need continuous monitoring. High-speed transmission and analysis of large recorded ECG signals are essential, especially with the increased use of battery-powered devices. Exploring low-power alternative compression methodologies that have high efficiency and that enable ECG signal collection, transmission, and analysis in a smart home or remote location is required. Compression algorithms based on adaptive linear predictors and decimation by a factor B/K are evaluated based on compression ratio (CR), percentage root-mean-square difference (PRD), and heartbeat detection accuracy of the reconstructed ECG signal. With two databases (153 subjects), the new algorithm demonstrates the highest compression performance (CR=6 and PRD=1.88) and overall detection accuracy (99.90% sensitivity, 99.56% positive predictivity) over both databases. The proposed algorithm presents an advantage for the real-time transmission of ECG signals using a faster and more efficient method, which meets the growing demand for more efficient remote health monitoring.Keywords: wearable sensors; telemedicine; digital medicine; smart healthcare; wireless systems; remote healthcare; mobile health; e-Health


SHMTools is available for free through the LANL/UCSD Engineering Institute. It is the beginning of a larger effort to collect and archive proven approaches to SHM for reuse by the research community. The package, therefore, includes various algorithms with source codes, along with structural data to serve as benchmarks for the evaluation of algorithms.


For simplicity, the HVD and VMD algorithms were set to return only the first IMF; in both cases, this mode was basically corresponding to the first natural frequency. For comparability, the mode most similar mode (frequency-wise) was selected from the ones returned by the CEEMDAN algorithm. In almost all simulations, this was the 4th CEEMDAN IMF. The frequency corresponding to the peak amplitude of the identified IMF (hereinafter, the peak frequency fp) was used as the feature of interest. This feature was expected to remain unvaried for unchanging structural conditions. Therefore, an arbitrary threshold was set to 10%fp and considered as the maximum error allowed.


Condition-based monitoring (CbM) is defined as a predictive maintenance strategy that continuously monitors the condition of assets using different types of sensors and uses the data extracted from sensors to monitor assets in real time. The collected data can help manufacturers increase throughput and asset utilization by reducing maintenance costs and asset downtime. CbM can be used to establish trends, predict failure, calculate the lifetime of an asset, and increase safety in manufacturing plants.


Real-time, continuous, condition-based monitoring and predictive maintenance solutions are increasing in importance as manufacturers look to increase throughput and asset utilization by reducing maintenance costs and asset downtime. Given that unscheduled downtime can amount to nearly a quarter of total manufacturing costs, predictive maintenance solutions have the potential to unlock significant cost savings and drive productivity improvements.


Developing accurate, reliable condition monitoring solutions for industrial assets requires a combination of technologies and design considerations to capture and convert critical signals into actionable insights. Our comprehensive portfolio of technologies and platforms include:


Provides high quality IEPE-compliant sensor data to accelerate condition-based monitoring algorithm development. Quickly stream high quality MEMS vibration sensor data directly into popular data analysis tools such as TensorFlow and MATLAB.


The low drift, low noise, and low power ADXL357 enables accurate tilt measurement in an environment with high vibration. The low noise of the ADXL356 over higherfrequencies is ideal for condition-based monitoring and other vibration sensing applications.


However, applications such as condition-based monitoring, factory automation, building automation, and structural monitoring, require peripherals be located remotely, typically far from the controller. System designers have traditionally extended these interfaces using repeaters or drivers with a higher drive strength at the expense of increasing the overall cost, complexity, and power consumption.


The circuit shown in Figure 1 solves the problem of long distance, robust, SPI/I2C communication simply and easily without any sacrifices to circuit component count, operating speed, or software complexity. Error free operation in high noise, harsh industrial environments requires tolerance to large ground potential differences. The SPI/ I2C extenders feature robust transceivers, which operate over an extended common mode range of 25 V (for SPI communication) and 15 V (for I2C communication) for distances up to 1200 meters. Each link consists of a single device at either end of the cable, capable of being powered from 3 V to 5.5 V, while a separate logic supply allows the I2C or SPI interface to operate from 1.62 V to 5.5 V. The extenders also provide an internal control interface for fault monitoring, which is critically important when monitoring equipment over long distances.


The focus of this circuit note is on the application of this solution to vibration applications, especially in the area of condition-based monitoring, but there is a large set of applications in instrumentation and industrial automation that use IEPE sensors in a similar way and that are served by similar signal chains.


Condition-based monitoring, in particular, uses sensor information to help predict changes in the condition of a machine. There are many methods of tracking the condition of a machine, but vibration analysis is the most commonly used method. By tracking the vibration analysis data over time, a fault or failure can be predicted, along with the source of the fault. 041b061a72


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