エチルアルコール検知装置
- 专利权人:
- ホーチキ株式会社
- 发明人:
- 長島 哲也
- 申请号：
- JP2012209241
- 公开号：
- JP5266414B2
- 申请日:
- 2012.09.24
- 申请国别(地区):
- JP
- 年份:
- 2013
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide an ethyl alcohol detector which detects ethyl alcohol in the blood from infrared rays emitted from a driver and is utilized for preventing driving under the influence of liquor.
SOLUTION: An imaging control part 42 captures a first subject image of a first wavelength band containing the absorbing wavelength &lambda1 of ethyl alcohol from the infrared radiated light of a subject 20 or reflected light and a second subject image of a second wavelength band containing the other absorbing wavelength &lambda2 of a disturbance substance having an absorbing wavelength in the same first wavelength band as ethyl alcohol by replacing a filter 16 and stores them in a memory 38. A reference image registration part 40 stores a first subject image captured by the imaging control part 42 when a registration mode is set in a nonvolatile memory 36 as a reference image in advance. An ethyl alcohol detection part 44 calculates an ethyl alcohol-containing degree on the basis of the first subject image and the reference image, and a disturbance substance detection part 46 calculates a disturbance degree on the basis of the second subject image and the reference image. A determining part 44 determines the detection or non-detection of ethyl alcohol on the basis of the ethyl alcohol-containing degree and the disturbance degree.
COPYRIGHT: (C)2013,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
