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Patent Searching and Data


Title:
DROWSINESS DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/182033
Kind Code:
A1
Abstract:
Provided is a drowsiness detection device that has high detection accuracy, is easy to install and operate, and can be implemented at low cost. The drowsiness detection device detects that a driver has become drowsy from a change in the center of gravity balance of the driver's trunk. After values from pressure sensors disposed on the right and left of a driver's seat are subjected to differential amplification, the values are converted into absolute values and then compared with a first threshold value to detect an unbalanced state of the driver's trunk, i.e., a rowing-motion state. Meanwhile, HPF is applied to data obtained by the differential amplification to detect an operation in which the driver has stepped on the brake pedal in a rushed way.

Inventors:
SATO Yasushi (1-1 Sensui-cho, Tobata-ku, Kitakyushu-sh, Fukuoka 50, 〒8048550, JP)
Application Number:
JP2019/011790
Publication Date:
September 26, 2019
Filing Date:
March 20, 2019
Export Citation:
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Assignee:
KYUSHU INSTITUTE OF TECHNOLOGY (1-1 Sensui-cho, Tobata-ku Kitakyushu-sh, Fukuoka 50, 〒8048550, JP)
International Classes:
A61B5/18; A61B5/11; A61B5/16
Foreign References:
JPH11326084A1999-11-26
US20170327124A12017-11-16
JPH08293085A1996-11-05
US6392550B12002-05-21
JP2012166579A2012-09-06
Attorney, Agent or Firm:
SHIN-YU INTERNATIONAL PATENT FIRM (Sasazuka Center Bldg, 2-1-6 Sasazuka, Shibuya-k, Tokyo 73, 〒1510073, JP)
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