The invention relates to an automobile fatigue driving detection method and system, and the method comprises the steps: obtaining a pressure value F of a steering wheel, obtaining a pressure value variation F1 according to the change of the pressure value F in a detection period T1, and calculating a first fatigue value P1 according to the detection period T1 and the pressure value variation F1; the heart rate of the driver is collected, the heart rate variable quantity N1 is obtained according to the change of the heart rate in the detection period, and a second fatigue value P2 is calculated according to the detection period T1 and the heart rate variable quantity N1; the blink data of the driver is recognized, the blink frequency variation Zl and the blink period variation tl are obtained according to the change of the blink frequency in the detection period, and a third fatigue value P3 is calculated according to the detection period T1, the blink frequency variation Zl and the blink period variation tl; and calculating a total fatigue value P in the detection period, P = P1 + P2 + P3, and if P exceeds a threshold value, giving a fatigue driving alarm. The fatigue degree of the human body is comprehensively judged by combining the hand grip strength, the heart rate and the face visual information, and the detection accuracy is improved.
本发明涉及一种汽车疲劳驾驶检测方法及检测系统,通过获取方向盘的压力值F,根据压力值F在检测周期Tl内的变化,获取压力值变化量Fl,根据检测周期Tl和压力值变化量Fl,计算出第一疲劳值P1;采集驾驶员心率,根据心率在检测周期内的变化,获取心率变化量Nl,根据检测周期Tl和心率变化量Nl,计算出第二疲劳值P2;识别驾驶员眨眼数据,根据眨眼次数在检测周期内变化,获取眨眼次数变化量Zl和眨眼周期变化量tl,根据检测周期Tl、眨眼次数变化量Zl和眨眼周期变化量tl,计算出第三疲劳值P3;计算检测周期内的总疲劳值P,P=P1+P2+P3,若P超出阈值,则进行疲劳驾驶报警。本发明结合手部握力、心率、面部视觉信息,综合判断人体疲劳程度,提高了检测的准确度。
Automobile fatigue driving detection method and detection system
一种汽车疲劳驾驶检测方法及检测系统
2023-03-07
Patent
Electronic Resource
Chinese
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