摘要
针对目前严重的疲劳驾驶行为,研制了一种疲劳驾驶检测装置。在座椅头枕上前方正对驾驶员头部的位置安装1个红外线发射二极管和2个红外线接收头,由单片机控制红外线发射的电流强度,同时检测接收头的信息就可以检测头部的相对位置。如果驾驶员处在疲劳驾驶状态中,头部必定偏离正常位置并且时间超过设定值,则输出报警和制动控制信号。在几种典型车辆上对该系统进行了实验,验证了方法的正确性和有效性,并能达到较高的测量精度。
A kind of automatic detection method using reflective infrared sensor controlled by single chip processor was introduced.By testing the relative position between the driver s back head and the head of chair under conventional sitting posture,the detector automatically judged whether the driver was in the state of fatigue drive.If it was,the driver s back head should depart from the normal position and the time exceed a set value,then the system outputted alarm signal and brake control signal.Its hardware ci...
出处
《仪表技术与传感器》
CSCD
北大核心
2008年第5期24-26,共3页
Instrument Technique and Sensor
关键词
红外线
单片机
距离测量
头部位置
疲劳驾驶
infrared
single chip processor
distance measurement
head position
fatigue drive
