Title:
BREATHALYZER HAVING MALFUNCTION DISPLAY FUNCTION
Document Type and Number:
WIPO Patent Application WO/2014/077430
Kind Code:
A1
Abstract:
According to characteristics of the present invention, provided is a breathalyzer for detecting alcohol particles, which is contained in the breath of a subject, introduced through a mouthpiece (170) and displaying the detected alcohol particles, the breathalyzer comprising: an alcohol sensor module (110) which is communicated to the mouthpiece (170) so as to allow the breath to be introduced thereto and which relatively and sensitively reacts to the alcohol particles contained in the breath and relatively and insensitively reacts to gas particles other than the alcohol particles in the breath so as to output a sensed signal; an amplification unit (120) for outputting a first magnification amplification signal obtained by amplifying the sensed signal by means of a first magnification so as to recognize the sensed signal for the alcohol particles and a second magnification amplification signal obtained by amplifying the sensed signal by means of a second magnification which is relatively higher than the first magnification so as to recognize the sensed signal for other gas particles; and a control unit (130) for calculating the alcohol concentration of the breath by means of the first magnification amplification signal, determining the malfunction of the breathalyzer based on whether other gases are detected by the second magnification amplification signal, and displaying the malfunction on a display unit (140).
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Inventors:
PARK KWANG HEE (KR)
Application Number:
PCT/KR2012/009719
Publication Date:
May 22, 2014
Filing Date:
November 16, 2012
Export Citation:
Assignee:
DATECH CO LTD (KR)
PARK KWANG HEE (KR)
PARK KWANG HEE (KR)
International Classes:
G01N33/497; G01N33/98
Foreign References:
| JPH09164130A | 1997-06-24 | |||
| KR101007519B1 | 2011-01-14 | |||
| KR101097952B1 | 2011-12-22 | |||
| KR20000038728A | 2000-07-05 | |||
| US20110308297A1 | 2011-12-22 |
Attorney, Agent or Firm:
LEE, DAE SUN (KR)
이대선 (KR)
이대선 (KR)
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