The Data Plumber

predictive maintenance

anomaly detection

CUSUM

python

How to turn a model’s residuals into an alarm, using a threshold and a CUSUM, with a thermostat example and Python.

predictive maintenance

ARIMA

system identification

python

How to choose p, d and q, and how to check that an ARMA model is good enough, using a thermostat example and Python.

predictive maintenance

anomaly detection

ARIMA

system identification

Why predictive maintenance, and how AR, MA and ARIMA models can spot a fault from a single sensor signal.