Importance

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Abstract

The invention relates to an algorithm for detecting activation of a tactile pressure sensor having a mechanic structure, acquisition electronics, and a specific sensor behavior. The algorithm includes (a) measuring an input quantity (f₀) corresponding to a force applied on the tactile pressure sensor with determined environmental condition; (b) computing a corrected activation threshold (Δf_COR) based on a calibrated activation threshold (Δf_CAL) evaluated during calibration of the tactile pressure sensor corrected by an electronic correction factor (CF_ELEC) for adjusting acquisition electronics variability, a mechanical correction factor (CF_MECHA) for adjusting mechanic structure variability and a sensor correction factor (CF_FSR) for adjusting sensor variability; the determined environmental condition; and an idle quantity (f_idle) based on the quantity measured when the tactile pressure sensor is not pressed under the determined environmental condition; (c) comparing the measured input quantity with the corrected activation threshold to determine whether the sensor has been pressed or not.

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First Claim