发明名称 |
ALERTNESS DEVICE, SEAT, AND METHOD FOR DETERMINING ALERTNESS |
摘要 |
An alertness device with a high accuracy for determining alertness, a seat equipped with the alertness device, and a method for determining alertness are provided. The alertness device includes: a respiration sensor obtaining respiratory data of a person; a calculation unit calculating the respiratory data, a waveform generation unit generating an RI waveform which is transition in a predetermined time period of a respiratory interval (RI) which is an interval for one respiration; and a determination unit determining a state of alertness of the person on the basis of the respiratory data. The calculation unit calculates an average value of the RI and RrMSSDn in a predetermined time period. In a case where an average value of the subsequent RI is greater than an average value of the RI directly previous to the subsequent RI and in a case where the RrMSSDn of the subsequent RI is greater than a value which is obtained by multiplying the RrMSSDn of the previous RI by a constant ², the determination unit determines on the basis of values calculated by the calculation unit that the person is in a state of low alertness. |
申请公布号 |
EP3061397(A1) |
申请公布日期 |
2016.08.31 |
申请号 |
EP20140855799 |
申请日期 |
2014.10.20 |
申请人 |
TS TECH CO., LTD.;PUBLIC UNIVERSITY CORPORATION NAGOYA CITY UNIVERSITY |
发明人 |
SUGIYAMA, SHINJI;ITO, TAKAYOSHI;YOKOYAMA, KIYOKO;TAKAHASHI, ISSEY |
分类号 |
A61B5/18;A61B5/08;A61B5/11 |
主分类号 |
A61B5/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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