DROWSINESS DETECTION PROGRAM MEDIUM, DROWSINESS DETECTION METHOD, AND DROWSINESS DETECTION APPARATUS

A drowsiness detection method that causes a computer to execute a process, the process includes: performing frequency analysis on heartbeat data obtained from a subject; and determining a state of the subject by calculating entropy in a predetermined frequency bandwidth with a peak as a reference, w...

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Bibliographische Detailangaben
Hauptverfasser:	Nakano Yasuhiko, Sano Satoshi, Senokuchi Satoshi, Tanaka Yuichi, KUBOTA Eiichiro
Format:	Patent
Sprache:	eng
Schlagworte:	DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE SURGERY
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Beschreibung
Zusammenfassung:	A drowsiness detection method that causes a computer to execute a process, the process includes: performing frequency analysis on heartbeat data obtained from a subject; and determining a state of the subject by calculating entropy in a predetermined frequency bandwidth with a peak as a reference, where the peak is within a predetermined frequency range of frequency distribution obtained from the frequency analysis result, determining that the subject is in a relaxation state in a case where the calculated entropy is less than a predetermined threshold value, and determining that the subject is in a drowsiness state in a case where the entropy is equal to or greater than the threshold value.