Method and device for recognizing the level of awareness of a vehicle driver
US7455146B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 22, 2003 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Jul 19, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/18
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a method for detecting the attention level of a vehicle operator, wherein a steering performance of the vehicle operator is monitored, as well as to a device (30) for detecting the attention level of a vehicle operator, with at least one sensor device detecting the steering performance of the vehicle and with a signal measurement and evaluation unit (32).According to the method of the invention, a phase relationship between a change of a steering angle (β) of at least one steerable wheel (22) of the vehicle and a change of the steering wheel angle (α) is evaluated. With the device of the invention, at least one signal (48) corresponding to the attention level can be generated, with the signal depending on a phase relationship between a steering angle (β) of at least one steerable wheel (22) of the vehicle and a steering wheel angle (α).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.