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1. 发明申请

US20120296226A1 PREDICTIVE DROWSINESS ALARM METHOD 有权
标题翻译：预测性干扰报警方法
公开(公告)号：US20120296226A1
公开(公告)日：2012-11-22
申请号：US13245205
申请日：2011-09-26
申请人： YU JEN SU , YEN HSIEN LEE , KUANG I CHANG
发明人： YU JEN SU , YEN HSIEN LEE , KUANG I CHANG
IPC分类号： A61B5/024
CPC分类号： A61B5/024 , A61B5/02405 , A61B5/18 , G08B21/06 , G08B31/00
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.
摘要翻译：公开了一种预测困倦的方法。通过获得驾驶员的平均心跳速率值，并且根据一段时间内的心跳率值的特性，利用该方法来确定人是否要睡觉。该方法包括以下步骤：检测驾驶员的心跳速率; 在X分钟的时间间隔内计算心跳速率平均曲线; 确定线性回归方程的斜率值小于预定斜率值Z的累积时间段; 确定所述累积时间段的长度是否大于时间阈值T以产生嗜睡检测结果; 以及基于睡意检测结果确定是否发出报警。

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