发明名称 |
PREDICTIVE DROWSINESS ALARM METHOD |
摘要 |
A method for predicting drowsiness is disclosed. By obtaining average heart beat rate values of a driver, and according to the characteristics of the heart beat rate values over a period of time, the method is utilized to determine whether the human being is going to sleep. The method comprises the following steps: detecting a heart beat rate of a driver; calculating a curve of the heart beat rate average during a time interval of X minutes; determining an accumulated period of time during which the slope values of the linear regression equations are smaller than the predetermined slope value Z; determining whether the length of the accumulated period of time is greater than a time threshold T to generate a drowsiness detecting result; and determining whether to raise an alarm based on the drowsiness detecting result. |
申请公布号 |
US2012296226(A1) |
申请公布日期 |
2012.11.22 |
申请号 |
US201113245205 |
申请日期 |
2011.09.26 |
申请人 |
SU YU JEN;LEE YEN HSIEN;CHANG KUANG I;INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE |
发明人 |
SU YU JEN;LEE YEN HSIEN;CHANG KUANG I |
分类号 |
A61B5/024 |
主分类号 |
A61B5/024 |
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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