Signal processing method of action detection signal input system of safety interlock

• Main Authors: LIANG CHENGKAI, PENG RUILIN, TANG YUNLING, LAI YUNHUI, ZHU SONGKAI, XIAO CHUNJIAN, LIU ZHIBO, CHEN HUASHENG, YAN LANGPING, LIU LIWEN
• Format: Patent
• Language: Chinese; English
• Published: 18.06.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention provides a signal processing method of an action detection signal input system of safety interlocking, which relates to the technical field of signal processing, and comprises the following steps: acquiring an action detection signal of the safety interlocking, and preprocessing the action detection signal to obtain a first action signal; adding a window function, and amplifying the first action signal through the window function to obtain a second action signal; extracting a time domain feature and a frequency domain feature of the second action signal; performing short-time Fourier transform on the time domain features and the frequency domain features to obtain time-frequency domain features, selecting an action detection feature set, and dividing the action detection feature set into a training set and a verification set; and constructing a signal identification model. A time domain window function and a frequency domain window function are respectively used for windowing a signal time domai