Alcohol concentration detection method

A technology of alcohol concentration and detection method, applied in the field of detection, can solve the problems of expensive purchase price, misleading test results, easy to be interfered by different human body temperature and ambient temperature, etc., to reduce interference and increase accuracy.

Active Publication Date: 2018-12-21
泉州轻工职业学院
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Problems solved by technology

Alcohol detector is an instrument to detect the alcohol content in the driver's breath, including: portable alcohol detector, wall-mounted alcohol detector, the operation process is simple, but the purchase price is expensive
At the same time, due to the difference in physique of different people, there are differences in the decomposition ability of alcohol, an

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Embodiment Construction

[0027] The technical solution of the present invention is further described in detail below, but the protection scope of the present invention is not limited to the following description.

[0028] A method for detecting alcohol concentration, comprising the steps of:

[0029] S1. The human body exhaled gas collection channel is opened;

[0030] S2. Detect the index value of the exhaled gas of the human body, including the expiratory flow value, the duration of a single exhalation, the real-time air pressure value, the real-time temperature value and the real-time output value of the alcohol sensor;

[0031] S3. Judging whether the expiratory flow rate value and the single exhalation duration value both reach the preset value, if yes, execute step S4; if not, stop gas collection, and execute step S1 after an interval of time t;

[0032] S4. Judging whether the real-time air pressure value of the gas reaches the preset value, if yes, then perform step S5, and if not, then perfo...

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PUM

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Abstract

The invention discloses an alcohol concentration detection method. The method comprises the steps that S1, an exhaled air collection channel is opened; S2, indicator values of exhaled air of a human body are detected, wherein the indicator values include an exhalation flow value, single-exhalation duration, a real-time air pressure value, a real-time temperature value and a real-time output valueof an alcohol sensor; S3, whether the exhalation flow value and the single-exhalation duration both reach preset values is judged, if yes, S4 is executed, or otherwise air collection is stopped, and S1 is executed again after interval time t; S4, whether the real-time air pressure value of the air reaches a preset value is judged, if yes, S5 is executed, or otherwise S2 is executed; S5, accordingto the real-time air pressure value, the real-time temperature value and the real output value of the alcohol sensor, an alcohol concentration value of the exhaled air is calculated; and S6, accordingto the alcohol concentration value of the exhaled air, an alcohol concentration value in blood of the human body is calculated. Through the method, the accuracy of a detection result can be guaranteed while the alcohol concentration in the blood of the human body is detected in real time.

Description

technical field [0001] The invention relates to the detection field, in particular to an alcohol concentration detection method. Background technique [0002] The National Bureau of Quality Supervision, Inspection and Quarantine issued the "Threshold and Inspection of Blood and Breath Alcohol Content of Vehicle Drivers" which stipulates that drinking and driving refers to driving with a blood alcohol content greater than or equal to 20mg / 100ml and less than 80mg / 100ml. Behavior; drunk driving refers to the driving behavior in which the blood alcohol content of the vehicle driver is greater than or equal to 80mg / 100ml. [0003] At present, in order to prevent the driver from driving a motor vehicle after drinking, it is often judged whether the driver is driving under the influence of alcohol by detecting the breath alcohol concentration. Alcohol detector is an instrument for detecting the alcohol content in the driver's breath, including: portable alcohol detector, wall-mou...

Claims

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Application Information

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IPC IPC(8): G01N33/48
CPCG01N33/48
Inventor 蔡荣盛汤仪平何婷婷黄重成郑学斌
Owner 泉州轻工职业学院
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