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Predictive_​Maintenance_​Model_​Training

<p><strong>Predictive Maintenance - Training</strong></p><p>This workflow trains an autoregressive model on data from a properly functioning rotor to compute error statistics. These statistics serve as a baseline, enabling early detection of anomalies during deployment. </p><p>The input data includes 313 time series of spectral amplitudes from 28 sensors located on a rotor machine. The workflow first filters the data to training data covering only normal functioning. </p><p>Then, it loops over each frequency column at a time, trains an auto-regressive model using 10 past values as predictors and calculates in-sample prediction error statistics. Lastly, it saves the model and prediction error statistics for deployment.</p>

Predictive Maintenance - Training


This workflow trains an autoregressive model on data from a properly functioning rotor to compute error statistics. These statistics serve as a baseline, enabling early detection of anomalies during deployment. The input data includes 313 time series of spectral amplitudes from 28 sensors located on a rotor machine. The workflow first filters the data to training data covering only normal functioning. Then, it loops over each frequency column at a time, trains an auto-regressive model using 10 past values as predictors and calculates in-sample prediction error statistics. Lastly, it saves the model and prediction error statistics for deployment.

Data Reading, Preparation and Model Training
Read sensor data ofrotor machines
CSV Reader
Lag = 10 10 samples as past history
Lag Column
loop on all 313 columns i.e. on all frequency bins on all sensors
Column List Loop Start
Loop End
train a Linear Regression Model for each time series column
Linear Regression Learner
Use avg. interpolationfor missing values
Missing Value
save errorstats
Table Writer
ex:[500-600]+Amp -> Amp
Column Name Replacer
Save model
Jan-Aug 2007 is the training set
extract Jan-Aug 2007
calculate error stats
Error Stats
Regression Predictor

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