Sleepiness level prediction device and sleepiness level prediction method
US11040720B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 3, 2018 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | Oct 3, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B31/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A sleepiness level prediction device includes a vehicle information acquisition unit, a driver information acquisition unit, and a control unit. The vehicle information acquisition unit is configured to acquire information relating to a vehicle. The driver information acquisition unit is configured to acquire information relating to a driver. The control unit is configured to calculate a stimulus amount to be given to the driver based on a current driving load of the driver and a driving load after a prescribed time, based on the information relating to the vehicle, calculate a non-acclimation degree indicative of a level at which the driver is not acclimated to driving based on a change in the stimulus amount, and predict a sleepiness level of the driver after the prescribed time based on a current sleepiness level of the driver estimated based on the information relating to the driver and the non-acclimation degree.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.