Design of sleep monitoring system based on intelligent terminal

Abstract

In order to monitor sleep condition more conveniently and assess sleep quality, a sleep monitoring system based on intelligent terminal was designed in this paper. The system mainly consists of signal acquisition module and intelligent terminal. The signal acquisition module communicates with intelligent terminal by bluetooth, which realizes collection, receiving, analysis and storage of electroencephalogram(EEG) signals. The intelligent terminal uses wavelet transform to denoise EEG signals. The sample entropy is extracted as the feature parameter, and the random forest(RF) algorithm is used to do the automatic staging, so as to assess sleep quality. Five volunteers participated in the experiment. The results show that signal acquisition module can collect high quality EEG signals and the analysis software can evaluate sleep quality quickly and accurately. The system has the advantages of small volume and low power consumption. It can be used to quantitatively reflect and objectively evaluate the quality of sleep.

Keywords

• sleep EEG signal
• intelligent terminal
• random forest algorithm
• sleep quality assessment