| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an art for further accurately acquire the state of a person. <P>SOLUTION: This biological state estimation apparatus includes a means for acquiring a time-series waveform of a frequency from a time-series waveform of a biological signal collected from the upper body of a person and finding a time-series waveform of the frequency gradient and a time-series waveform of the frequency variation to perform frequency analysis thereof. In the frequency analysis, this apparatus acquires power spectra of the respective frequencies corresponding to a predetermined function adjustment signal, fatigue reception signal and activity adjustment signal. The state of the person is thus determined from the time-series changes in the respective power spectra. The fatigue reception signal indicates a progressing degree of the fatigue in an ordinary active state and, in conjunction therewith, priority degrees of the function adjustment signal and the activity adjustment signal are compared as their distribution rates, so as to accurately determine the state of the person (a relaxed state, a fatigue state, a sympathetic-nerve predominant state, a parasympathetic nerve predominant state, or the like). <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
