Patent · US Active

Optical detection method and optical detection apparatus for fatigue state, and optical detection device

US11300446B2 · kind B2 · utility

0Cited by

3References

9Claims

0Family size

Assignees

Inventors

Pengfei Wei · Beijing, CN
Wei Sun · Beijing, CN
Zheng Jia · Germantown, US
Xu Guan · Beijing, CN
Zhenwei Gao · Beijing, CN
Xue Gao · Beijing, CN
Ning Xie · 恩江镇, CN
Xingge Jia · Beijing, CN
Zongyuan WANG · Beijing, CN
Chuanhui Ma · Beijing, CN

Key dates

Filing date	Nov 14, 2019
Grant date	Apr 12, 2022
Priority date	—
Expiry date	Dec 28, 2039

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B5/163
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Disclosed are an optical detection method and an optical detection apparatus for a fatigue state of a user, and an optical detection device, this application relates to the field of detection technology, and is for improving accuracy of detection of the fatigue state. An optical detection method includes: irradiating eyes of the user with an infrared light; obtaining an intensity of an infrared light reflected by the eyes of the user; and determining whether the user is in a fatigue state based on the intensity of the reflected infrared light.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.