您的位置: 首页 > 农业专利 > 详情页

PROCÉDÉ ET DISPOSITIF DE DÉTECTION DE SOMNOLENCE
专利权人:
Toyama Prefecture
发明人:
申请号:
EP12829487.3
公开号:
EP2754393A1
申请日:
2012.09.04
申请国别(地区):
EP
年份:
2014
代理人:
摘要:
To provide a doze detection method and an apparatus thereof, using a simple device, with which it is possible to accurately detect a blink burst and to improve the speed and the accuracy of doze detection. Among states from an eye closure to an eye opening of a human eye, a state where the eye is substantially open is defined as an open eye time and the other state is defined as a closed eye time. A time that is relatively shorter than an average blink interval of healthy adult in an alert state is defined as a first threshold time. A time that is relatively longer than an average closed eye time of healthy adult in an alert state is defined as a second threshold time. When detecting an eye opening equal to or shorter than the first threshold time, blinks before and after the eye opening are defined as a blink burst. It is determined to be a doze state when a closed eye time of a blink among the blinks during the blink burst reaches the second threshold time or more, the blink occurring after an open eye time equal to or shorter than the first threshold time. It is immediately determined to be a doze state when a closed eye time of a blink among the blinks during the blink burst is equal to or longer than the second threshold time, the blink occurring before an open eye time equal to or shorter than the first threshold time. It is determined to be a doze state also in a case of an eye closure relatively longer than the second threshold time.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
相关发明人
相关专利

意 见 箱

匿名:登录

个人用户登录

找回密码

第三方账号登录

忘记密码

个人用户注册

必须为有效邮箱
6~16位数字与字母组合
6~16位数字与字母组合
请输入正确的手机号码

信息补充