Capacitive touch event recognition method and apparatus, electronic device, and storage medium

Abstract

This application relates to the field of touch technology and discloses a capacitive touch event recognition method, device, electronic device, and storage medium. The method includes: obtaining an initial capacitance sequence through a preset capacitance sampling operation, processing the initial capacitance sequence to obtain a smoothed capacitance sequence and a baseline value sequence, and then calculating a first-order capacitance difference sequence based on the smoothed capacitance sequence; defining a sign function based on the first-order capacitance difference sequence, and determining the tolerance value of continuous sampling points based on the sign function, and then determining the counting rules of multiple counters based at least on the smoothed capacitance sequence; defining a finite state machine, and formulating state machine and touch event determination rules, and then identifying capacitive touch events by at least combining the state machine and touch event determination rules. This application identifies capacitive touch events by recognizing the capacitance characteristics generated when a human hand touches a sensor, without relying on traditional capacitance value calibration, thus saving development costs.

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