Inattention determining device
AssigneeHonda Motor Co., Ltd.
InventorsAkio Takahashi, Shinsuke Ueda, Seiichi Yamamoto
Life of this patent
Estimating the term…
Abstract
An inattention determining device includes range changing unit and inattention determining unit. When a curve detection result is output from curve detector, the range changing unit changes a first predetermined range to a second predetermined range by the predetermined amount in the curve direction before a turning direction of an acquisition result is changed in the curve direction of the curve detection result. The inattention determining unit determines whether or not a driver is in an inattention state on the basis of the second predetermined range.
Claims8
An inattention determining device comprising:
- an imaging unit which captures an image of a face of a driver in a vehicle and outputs a face image;
- a sight line direction detector which detects a sight line direction of the driver from the face image and outputs a sight line detection result;
- an inattention determining unit which determines that the driver is in an inattention state when the sight line direction of the sight line detection result is out of a first predetermined range;
- an information acquiring unit which acquires information of driving behavior including a turning direction of the vehicle and outputs a driving behavior acquisition result;
- a range changing unit which changes the first predetermined range to a second predetermined range by a predetermined amount on the basis of the driving behavior acquisition result;
- and
- a curve detector which detects an existence of a curve to the front within a predetermined distance from the vehicle and a curve direction of the curve, and outputs a curve detection result,
- wherein when the curve detection result is output from the curve detector, the range changing unit changes the first predetermined range to the second predetermined range by the predetermined amount in the curve direction before the turning direction of the driving behavior acquisition result is changed in the curve direction of the curve detection result, and
- wherein the inattention determining unit determines whether or not the driver is in the inattention state on the basis of the second predetermined range.
Dependencies are inferred from the claim text.