A multi-dimensional force touch signal processing method and a multi-dimensional force touch device

Abstract

The application discloses a multi-dimensional force touch signal processing method and a multi-dimensional force touch device. The method comprises the following steps: acquiring sensing signals from sensing units, wherein the sensing signals are proportional to the cross-section shear force of corresponding beams; constructing a characteristic quantity set reflecting the response difference of each beam to the same external force according to the sensing signals of the beams, wherein the characteristic quantity set is determined by the parallel and spaced configuration of the sensing body, and has a determined linear mapping relationship with the components of the external force in multiple dimensions; and based on the characteristic quantity set, the multi-dimensional force information acting on the touch surface is calculated through a pre-established decoupling model. The application converts the crosstalk originally regarded as interference into decoupling information by extracting the response difference characteristics of the parallel and spaced beam structure, simplifies the calculation process, and effectively solves the problems of large signal crosstalk and complex decoupling algorithm without a complex mechanical decoupling structure, so that multi-dimensional force high-precision measurement with simple structure, small size and low cost is realized.

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