Method and apparatus for measuring vehicle driver's fatigue to give an alarm
US4502122A · kind A · utility
10Cited by
5References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1982 |
| Grant date | Feb 26, 1985 |
| Priority date | — |
| Expiry date | Jun 1, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/06
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An alarm device is adapted to detect accumulation of fatigue of an automotive vehicle driver and to set an alarm time clock to produce an alarm. The detection of accumulation of fatigue is based on selected driving conditions of the vehicle and the period of time during which the detected driving condition is maintained. Fatigue data obtained based on the driving condition and the time is accumulated to determine a correction or updated value of the set time to be compared with the actual driving time. An alarm device will be activated when the driving time reaches the updated time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.