DROWSINESS CALCULATION DEVICE

Japanese Patent JP2016182242

A

PROBLEM TO BE SOLVED: To provide a drowsiness calculation device capable of accurately calculating drowsiness in consideration of a peripheral environment.SOLUTION: In a smartphone 1, I/F18 acquires the heart rate of a subject measured by a heart rate sensor 19 and the measurement time, a state determination part 11 determines the activity state of the subject and a GPS receiver 12 obtains present position information of the smartphone 1 so as to transmit it to a server 2. In the server 2, an external communication part 23 acquires weather information on the current place of the subject, a correction part 24 reads a drowsiness reference heart rate of the subject from a drowsiness reference heart rate table 21 of the subject according to the activity state and the current time to correct it on the basis of the weather information. The server 2 transmits the drowsiness reference heart rate which has been corrected (corrected drowsiness reference heart rate) to the smartphone 1 and a drowsiness degree calculation part 16 of the smartphone 1 calculates the degree of drowsiness of the subject on the basis of the corrected drowsiness reference heart rate and the heart rate acquired by I/F18.SELECTED DRAWING: Figure 1

ARAI NORITAKA
MURATA TOSHIYUKI
YASUSHI MITSUO

JP2015064099A

October 20, 2016

March 26, 2015

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PIONEER ELECTRONIC CORP

A61B5/18; A61B5/0245; B60K28/06; G01C21/34; G08G1/16

JP2008188108A	2008-08-21
JP2004024704A	2004-01-29
JP2003061939A	2003-03-04
JP2008035964A	2008-02-21
JP2006130046A	2006-05-25
JP2010134533A	2010-06-17
JPH06197890A	1994-07-19
JPH01250221A	1989-10-05

US20140364752A1

2014-12-11

Hideo Takino
Takao Kawasaki
Fumio Takino
Toshiaki Tsuda
Masashi Torino

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