English to French Tech/Engineering Patents (in a patent) METHOD AND DEVICE FOR PREDICTING ROCK MASS INSTABILITY STAGES BASED ON MULTI-FEATURE FUSION

A method for predicting rock mass instability stages based on multi-feature fusion, comprising:
acquiring acoustic emission signals of a rock mass;
performing hybrid domain feature extraction on the acquired acoustic emission signals, and
extracting multiple feature parameters with significant category difference information from parameter features, time domain features, or/and frequency domain features respectively;

The parameter features comprise one or more of a ringing count, an acoustic emission event number, an energy count, a duration, a rise time, an effective voltage value, and an effective amplitude value of the acoustic emission signals.