Physiological condition estimation device and vehicle control device
US8576081B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2010 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Oct 12, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2540/22
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Provided are a physiological condition estimation device and a vehicle control device capable of preventing an error in the operation of an apparatus, such as a vehicle, and improving the safety of the operation of the apparatus. The physiological condition estimation device includes an eye-open time acquiring unit that acquires the eye-open time of the driver, a variation calculating unit that acquires a variation in the eye-open time acquired by the eye-open time acquiring unit, and a drowsiness predicting unit that determines the physiological condition of the driver on the basis of the variation in the eye-open time acquired by the variation calculating unit. In this way, since the physiological condition is determined on the basis of the variation in the eye-open time, it is possible to detect a slight reduction in the arousal level and estimate a significant reduction in the arousal level to a value that will cause an error in the driving of the vehicle in the future.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.