The application discloses a kind of based on uterine electromyogram labor stage automatic staging method and device.Method includes: S1, through multichannel
electrode acquisition pregnant woman
abdominal wall's original uterine electromyogram
signal, to the original uterine electromyogram
signal is power interference filtering, artifact removal,
baseline drift correction and band-pass filtering
processing, obtain the uterine electromyogram
signal after
processing;S2, to the effective uterine electromyogram signal after pre-
processing is burst wave identification and
data segment division, at least two nonlinear entropy features are extracted to each
data segment, and the nonlinear entropy features extracted are constructed mixed
feature vector;S3, after dimension reduction processing, the mixed
feature vector is input into pre-training labor
stage classification model, and the automatic classification of labor stage is carried out;S4, after
time sequence smoothing processing to
classification result, real-time output and display continuous labor stage staging result.The application can early prompt labor progress acceleration or stagnation before clinical indication appears by monitoring EHG signal entropy value trend.