Title:
WAKEFULNESS DEGREE DETERMINATION DEVICE AND WAKEFULNESS DEGREE DETERMINATION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/058503
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a technology that enables determining a degree of wakefulness with high accuracy. This wakefulness degree determination device is provided with a variation acquisition unit (21), a frequency calculation unit (22), and a wakefulness degree determination unit (23). The variation acquisition unit (21) acquires an angular variation, an inclination variation, and a positional variation. The frequency calculation unit (22) calculates an angular frequency, an inclination frequency, and a positional frequency. The wakefulness degree determination unit (23) determines that the degree of wakefulness of a driver of a vehicle has dropped in the case when one or more of the angular frequency, the inclination frequency, and the positional frequency have exceeded a fourth threshold, a fifth threshold, and a sixth threshold, respectively.
Inventors:
TOMINAGA KENTA (JP)
KITANO HIROAKI (JP)
KITANO HIROAKI (JP)
Application Number:
PCT/JP2017/034293
Publication Date:
March 28, 2019
Filing Date:
September 22, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G08G1/16; A61B5/18
Foreign References:
| JP2000326757A | 2000-11-28 | |||
| JP2013140605A | 2013-07-18 | |||
| JPS5766026A | 1982-04-22 | |||
| JP2017107299A | 2017-06-15 | |||
| JP2008250859A | 2008-10-16 | |||
| JP2008221967A | 2008-09-25 |
Attorney, Agent or Firm:
YOSHITAKE Hidetoshi et al. (JP)
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