Data processing device and method

Abstract

A data processing device includes a detection unit, a memory and a processor. The processor performs a short-term Fourier transform on photoplethysmographic data to generate a first spectrogram matrix. The processor also performs numerical split processing on the first spectrogram matrix to generate a first spectrum matrix, where the first spectrum matrix includes first spectrum arrays arranged in sequence from left to right. The processor also inputs the first spectrum arrays into a transformer model from left to right to generate second spectrum arrays in sequence, and transforms the second spectrum arrays into a second spectrum matrix according to an order in which the second spectrum arrays are generated. The processor also performs numerical combining processing on the second spectrum matrix to generate a second spectrogram matrix, and performs an inverse short-term Fourier transform on the second spectrogram matrix to generate arterial blood pressure data.