Absentminded state determination apparatus

摘要

An absentminded state determination apparatus includes: a data obtaining element for obtaining a time series data of a physiological characteristic value of a participant, wherein a fluctuation component is overlapped on the time series data, and depends on a state of the participant including normal and absentminded states; a detection element for detecting reflecting portions of the time series data, which reflect on the fluctuation component; a counting element for counting the number of the reflecting portions of the time series data in a determination time period between a determination time and a certain past time; and a determination element for determining according to the number of the reflecting portions at the determination time whether the participant is in the absentminded state. The determination time period has a predetermined time width from the certain past time to the determination time.

主权项

1. An absentminded state determination apparatus comprising:
a data obtaining element for obtaining time series data, wherein at least portions of data points in the time series data are time intervals between adjacent pulse beats or heart beats of a participant; a detection element for detecting a plurality of peaks and troughs of the time series data; a counting element for counting the number of the peaks and troughs detected by the detection element in a determination time period; and a determination element for determining, without using a Fourier transform, according to the number of the peaks and troughs counted by the counting element whether the participant is in an absentminded state, wherein each peak is a data point, which is larger than each adjacent data point, wherein each trough is a data point, which is smaller than each adjacent data point, wherein each peak represents the largest time interval in a region of the time series data, wherein each trough represents the smallest time interval in a region of the time series data.