Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle subsystem or accessory control
Patent
1997-06-10
2000-04-11
Zanelli, Michael J.
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle subsystem or accessory control
340576, 348 77, B60R 2100, H04N 718
Patent
active
060497475
ABSTRACT:
In a driver monitoring system, a pattern projecting device consisting of two fiber gratings stacked orthogonally which receive light from a light source projects a pattern of bright spots on a face of a driver. A image pick-up device picks up the pattern of bright spots to provide an image of the face. A data processing device processes the image, samples the driver's face to acquire three-dimensional position data at sampling points and processing the data thus acquired to provide inclinations of the face of the driver in vertical, horizontal and oblique directions. A decision device decides whether or not the driver is in a dangerous state in accordance with the inclinations of the face obtained. A warning device warns the driver against his dangerous state. The pattern light projecting device and pick-up device are integrated to each other and installed on a steering column on a vehicle. Thus, the driver monitoring system can assure performance, reliability and safety without hindering the driver in view of its installation on the vehicle.
REFERENCES:
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patent: 5293427 (1994-03-01), Ueno et al.
patent: 5353013 (1994-10-01), Estrada
patent: 5867587 (1999-02-01), Aboutalib et al.
patent: 5878156 (1999-03-01), Okumura
Ishikawa Naoto
Nakajima Masato
Sasaki Kazuyuki
Yazaki -Corporation
Zanelli Michael J.
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