CN109061124B - Alcohol concentration detection method - Google Patents
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- CN109061124B CN109061124B CN201810822117.6A CN201810822117A CN109061124B CN 109061124 B CN109061124 B CN 109061124B CN 201810822117 A CN201810822117 A CN 201810822117A CN 109061124 B CN109061124 B CN 109061124B
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 238000001514 detection method Methods 0.000 title claims abstract description 28
- 239000008280 blood Substances 0.000 claims abstract description 17
- 210000004369 blood Anatomy 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 7
- 238000012360 testing method Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000035622 drinking Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 206010006326 Breath odour Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
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Abstract
The invention discloses an alcohol concentration detection method, which comprises the following steps: s1, opening a exhaled gas collection channel; s2, detecting index values of the exhaled gas of the human body, wherein the index values comprise an exhalation flow value, single exhalation duration, a real-time air pressure value, a real-time temperature value and a real-time output value of an alcohol sensor; s3, judging whether the expiratory flow value and the single expiratory duration value both reach preset values, if so, executing S4; if not, stopping gas collection, and executing S1 after the interval time t; s4, judging whether the real-time air pressure value of the gas reaches a preset value, if so, executing S5, otherwise, executing S2, and S5, calculating the alcohol concentration value of the exhaled gas according to the real-time air pressure value, the real-time temperature value and the real-time output value of the alcohol sensor; and S6, calculating the alcohol concentration value in the human blood according to the alcohol concentration value of the exhaled air. The invention can ensure the accuracy of the detection result while detecting the alcohol concentration in the blood of the human body in real time.
Description
Technical Field
The invention relates to the field of detection, in particular to an alcohol concentration detection method.
Background
The regulations in "blood and breath alcohol content thresholds and tests of vehicle drivers", issued by the State quality supervision, inspection and quarantine Bureau: drunk driving refers to the driving behavior that the alcohol content in the blood of a vehicle driver is more than or equal to 20mg/100ml and less than 80mg/100 ml; drunk driving refers to the driving behavior of a vehicle driver with alcohol content in the blood greater than or equal to 80mg/100 ml.
At present, in order to prevent a driver from driving a motor vehicle after drinking, whether the driver drives the motor vehicle after drinking is often judged by detecting the concentration of alcohol in expired air. The alcohol detector is an instrument for detecting the alcohol content in the breath of a driver, and comprises: the portable alcohol detector and the wall-mounted alcohol detector are simple and convenient in operation process, but expensive in purchase price. Meanwhile, due to the difference of the constitutions of different people and the difference of the decomposition capacity of alcohol, the detection result of the alcohol detector is easily interfered by different human body temperatures and environmental temperatures, in addition, the expiratory flow and the single duration of the detected person are different from person to person, and whether the detected person exhales deeply or not cannot be determined, so that the detection result is obviously misled. Further, the pressure of the gas to be detected also affects the detection result.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an alcohol concentration detection method, so that the alcohol concentration in human blood can be detected in real time at least, and the detection result can be ensured to be accurate.
The purpose of the invention is realized by the following technical scheme: an alcohol concentration detection method comprises the following steps:
s1, opening a human body exhaled gas collection channel;
s2, detecting index values of the exhaled gas of the human body, wherein the index values comprise an exhalation flow value, single exhalation duration, a real-time air pressure value, a real-time temperature value and a real-time output value of an alcohol sensor;
s3, judging whether the expiratory flow value and the single expiratory duration value both reach preset values, if so, executing a step S4; if not, stopping gas collection, and after the interval time t, executing the step S1;
s4, judging whether the real-time air pressure value of the gas reaches a preset value, if so, executing a step S5, and if not, executing a step S2;
s5, calculating an alcohol concentration value of the exhaled gas according to the real-time air pressure value, the real-time temperature value and the real-time output value of the alcohol sensor;
and S6, calculating the alcohol concentration value in the human blood according to the alcohol concentration value of the exhaled air.
Further, in S2, the index value of the exhaled gas further includes a gas pressure change rate and a temperature change rate of the gas.
Further, in S3, the interval time t is 0.5 to 2S.
Further, in S5, the solution formula of the alcohol concentration value of the exhaled air is as follows:
wherein, ChTo callAlcohol concentration in the exhaust gas, OsIs the real-time output value, k, of the alcohol sensor1Is a coefficient, P is the real-time pressure value of the exhaled air, PmaxIs the maximum pressure value, P, of the normal operation of the alcohol sensorminIs the minimum air pressure value of normal operation of the alcohol sensor, T is the real-time temperature value of the exhaled air, TmaxIs the maximum temperature value, T, at which the alcohol sensor normally worksminThe temperature is the minimum temperature value for normal work of the alcohol sensor, and R is a universal gas constant.
Further, in S6, the solving formula of the alcohol concentration value in blood is:
Cx＝k2*Ch，
wherein, CxIs the alcohol concentration in blood, k2Are coefficients.
Further, the coefficient k2The following functional relationship is satisfied:
wherein P is a real-time air pressure value of the exhaled air, T is a real-time temperature value of the exhaled air, Δ P is an absolute value of a change difference of air pressure values per second of the exhaled air, and Δ T is an absolute value of a change difference of temperature values per second of the exhaled air.
A detection device adopting an alcohol concentration detection method comprises an electric valve, a display, a flowmeter, a timer, an air pressure sensor, a temperature sensor, an alcohol sensor and a controller;
the electric valve is communicated with the gas collection channel, the flowmeter is arranged on the gas collection channel, the air pressure sensor, the temperature sensor and the alcohol sensor are arranged in the gas collection cavity, and the gas collection cavity is communicated with the gas collection channel;
the controller is electrically connected with the electric valve, the display, the flowmeter, the timer, the air pressure sensor, the temperature sensor and the alcohol sensor.
The invention has the beneficial effects that: before the alcohol analysis algorithm is executed, double preprocessing and judgment on the detected gas are added, firstly, the expiratory flow value and the duration of single expiration are judged, the expiration which does not meet the standard is subjected to pause processing, and the operation that a detected person attempts to escape from punishment through shallow expiration is effectively avoided; and further monitoring the real-time air pressure value of the gas meeting the expiration standard. After the gas quantity reaches a preset standard, an alcohol concentration testing link is carried out, when the gas alcohol concentration is solved, the gas pressure and the temperature of the gas are added to be used as compensation of a detection result due to the fact that different alcohol sensors are influenced by the environment and the human body to cause drift, and interference is effectively reduced. Meanwhile, the method also makes a compensation strategy for abnormal expiration and insufficient gas volume, and can be used as an insurance operation for the pretreatment judgment in the last step, so that the detection precision is further increased. Finally, a further compensation process is performed on the correlation coefficient of the blood alcohol concentration and the breath gas alcohol concentration.
Detailed Description
The technical solutions of the present invention are described in further detail below, but the scope of the present invention is not limited to the following.
An alcohol concentration detection method comprises the following steps:
s1, opening a human body exhaled gas collection channel;
s2, detecting index values of the exhaled gas of the human body, wherein the index values comprise an exhalation flow value, single exhalation duration, a real-time air pressure value, a real-time temperature value and a real-time output value of an alcohol sensor;
s3, judging whether the expiratory flow value and the single expiratory duration value both reach preset values, if so, executing a step S4; if not, stopping gas collection, and after the interval time t, executing the step S1;
s4, judging whether the real-time air pressure value of the gas reaches a preset value, if so, executing a step S5, and if not, executing a step S2;
s5, calculating an alcohol concentration value of the exhaled gas according to the real-time air pressure value, the real-time temperature value and the real-time output value of the alcohol sensor;
and S6, calculating the alcohol concentration value in the human blood according to the alcohol concentration value of the exhaled air.
Further, in S2, the index value of the exhaled gas further includes a gas pressure change rate and a temperature change rate of the gas.
Further, in S3, the interval time t is 0.5 to 2S.
Further, in S5, the solution formula of the alcohol concentration value of the exhaled air is as follows:
wherein, ChAlcohol concentration in exhaled air, OsIs the real-time output value, k, of the alcohol sensor1Is a coefficient, P is the real-time pressure value of the exhaled air, PmaxIs the maximum pressure value, P, of the normal operation of the alcohol sensorminIs the minimum air pressure value of normal operation of the alcohol sensor, T is the real-time temperature value of the exhaled air, TmaxIs the maximum temperature value, T, at which the alcohol sensor normally worksminThe temperature is the minimum temperature value for normal work of the alcohol sensor, and R is a universal gas constant.
Further, in S6, the solving formula of the alcohol concentration value in blood is:
Cx＝k2*Ch，
wherein, CxIs the alcohol concentration in blood, k2Are coefficients.
Further, the coefficient k2 satisfies the following functional relationship:
wherein P is a real-time air pressure value of the exhaled air, T is a real-time temperature value of the exhaled air, Δ P is an absolute value of a change difference of air pressure values per second of the exhaled air, and Δ T is an absolute value of a change difference of temperature values per second of the exhaled air.
A detection device adopting an alcohol concentration detection method comprises an electric valve, a display, a flowmeter, a timer, an air pressure sensor, a temperature sensor, an alcohol sensor and a controller;
the electric valve is communicated with the gas collection channel, the flowmeter is arranged on the gas collection channel, the air pressure sensor, the temperature sensor and the alcohol sensor are arranged in the gas collection cavity, and the gas collection cavity is communicated with the gas collection channel;
the controller is electrically connected with the electric valve, the display, the flowmeter, the timer, the air pressure sensor, the temperature sensor and the alcohol sensor.
According to the method, before the alcohol analysis algorithm is executed, double preprocessing and judgment on the detected gas are added, firstly, the expiratory flow value and the duration of single expiration are judged, and expiration which does not meet the standard is subjected to pause processing, so that the operation that a detected person attempts to evade punishment through shallow expiration is effectively avoided; and further monitoring the real-time air pressure value of the gas meeting the expiration standard. After the gas quantity reaches a preset standard, an alcohol concentration testing link is carried out, when the gas alcohol concentration is solved, the gas pressure and the temperature of the gas are added to be used as compensation of a detection result due to the fact that different alcohol sensors are influenced by the environment and the human body to cause drift, and interference is effectively reduced. Meanwhile, the method also makes a compensation strategy for abnormal expiration and insufficient gas volume, and can be used as an insurance operation for the pretreatment judgment in the last step, so that the detection precision is further increased. Finally, a further compensation process is performed on the correlation coefficient of the blood alcohol concentration and the breath gas alcohol concentration.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. An alcohol concentration detection method is characterized in that:
s1, opening a human body exhaled gas collection channel;
s2, detecting index values of the exhaled gas of the human body, wherein the index values comprise an exhalation flow value, single exhalation duration, a real-time air pressure value, a real-time temperature value and a real-time output value of an alcohol sensor;
s3, judging whether the expiratory flow value and the single expiratory duration value both reach preset values, if so, executing a step S4; if not, stopping gas collection, and after the interval time t, executing the step S1;
s4, judging whether the real-time air pressure value of the gas reaches a preset value, if so, executing a step S5, and if not, executing a step S2;
s5, calculating an alcohol concentration value of the exhaled gas according to the real-time air pressure value, the real-time temperature value and the real-time output value of the alcohol sensor;
s6, calculating an alcohol concentration value in human blood according to the alcohol concentration value of the exhaled air;
in S5, the solution formula of the alcohol concentration value of the exhaled air is as follows:
wherein, ChAlcohol concentration in exhaled air, OsIs the real-time output value, k, of the alcohol sensor1Is a coefficient, P is the real-time pressure value of the exhaled air, PmaxIs the maximum pressure value, P, of the normal operation of the alcohol sensorminIs the minimum air pressure value of normal operation of the alcohol sensor, T is the real-time temperature value of the exhaled air, TmaxIs the maximum temperature value, T, at which the alcohol sensor normally worksminThe temperature is the minimum temperature value for normal work of the alcohol sensor, and R is a universal gas constant.
2. The alcohol concentration detection method according to claim 1, wherein: in S2, the index value of the exhaled gas further includes a gas pressure change rate and a temperature change rate of the gas.
3. The alcohol concentration detection method according to claim 2, wherein: in S3, the interval time t is 0.5 to 2S.
4. The alcohol concentration detection method according to claim 1, wherein: in S6, the solving formula of the alcohol concentration value in blood is: cx＝k2*ChWherein, CxIs the alcohol concentration in blood, k2Are coefficients.
5. The method according to claim 4, wherein the coefficient k is2The following functional relationship is satisfied:
wherein P is a real-time air pressure value of the exhaled air, T is a real-time temperature value of the exhaled air, Δ P is an absolute value of a change difference of air pressure values per second of the exhaled air, and Δ T is an absolute value of a change difference of temperature values per second of the exhaled air.
6. A detection apparatus using the alcohol concentration detection method according to any one of claims 1 to 5, characterized in that: the detection device comprises an electric valve, a display, a flowmeter, a timer, an air pressure sensor, a temperature sensor, an alcohol sensor and a controller; the electric valve is communicated with the gas collection channel, the flowmeter is arranged on the gas collection channel, the air pressure sensor, the temperature sensor and the alcohol sensor are arranged in the gas collection cavity, and the gas collection cavity is communicated with the gas collection channel; the controller is electrically connected with the electric valve, the display, the flowmeter, the timer, the air pressure sensor, the temperature sensor and the alcohol sensor.
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| CN109606106A (en) * | 2019-01-26 | 2019-04-12 | 南京云计趟信息技术有限公司 | An unattended alcohol detection system based on face recognition |
| CN109795320A (en) * | 2019-01-26 | 2019-05-24 | 南京云计趟信息技术有限公司 | A kind of unattended alcohol detection method based on recognition of face |
| CN109766870A (en) * | 2019-01-26 | 2019-05-17 | 南京云计趟信息技术有限公司 | A kind of unattended alcohol detection method based on action recognition |
| CN111688711A (en) * | 2020-06-12 | 2020-09-22 | 南京森林警察学院 | Alcohol detection management system and method based on cloud computing |
| CN111845341B (en) * | 2020-06-22 | 2022-05-31 | 东风柳州汽车有限公司 | Drunk driving prevention control method and device for automobile |
| EP4198510A4 (en) * | 2020-12-04 | 2023-10-04 | Shenzhen Everbest Machinery Industry Co., Ltd. | METHOD AND DEVICE FOR DETECTING ALCOHOL |
| CN112526118B (en) * | 2020-12-04 | 2024-02-27 | 深圳市华盛昌科技实业股份有限公司 | Alcohol detection method and device |
| CN114720679A (en) * | 2022-04-02 | 2022-07-08 | 深圳市华盛昌科技实业股份有限公司 | Alcohol concentration detection method and device, wearable device and medium |
| CN116176599A (en) * | 2023-03-23 | 2023-05-30 | 广州汉玛智慧信息技术有限责任公司 | Equipment use permission management system based on alcohol detection |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410754A (en) * | 1997-01-14 | 2003-04-16 | 大塚制药株式会社 | Method and device for stably testing isotope using spectroscope |
| CN201867411U (en) * | 2010-11-01 | 2011-06-15 | 青岛金弘测控技术发展有限公司 | Alcohol tester matched with mobile communication terminal |
| CN102991353A (en) * | 2012-12-06 | 2013-03-27 | 安科智慧城市技术（中国）有限公司 | Vehicular alcohol detection system, method and automobile |
| CN104487844A (en) * | 2012-06-19 | 2015-04-01 | 艾可系统瑞典公司 | Method for measuring breath alcohol concentration and apparatus therefor |
| CN205426914U (en) * | 2015-12-15 | 2016-08-03 | 深圳安维森实业有限公司 | Alcohol gas concentration verifying unit |
| CN106526153A (en) * | 2015-12-15 | 2017-03-22 | 深圳安维森实业有限公司 | Alcohol gas concentration calibration device |
| CN107618370A (en) * | 2017-10-17 | 2018-01-23 | 北京长城华冠汽车科技股份有限公司 | Alcohol detection control device, vehicle and alcohol detection control method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4678057A (en) * | 1986-01-16 | 1987-07-07 | Autosense Corporation | Breath alcohol analyzer |
| US7736903B2 (en) * | 2005-10-05 | 2010-06-15 | Delphi Technologies, Inc. | Tracer to compensate for environmental variations that influence a chemical vapor sensor measurement |
| GB2431470A (en) * | 2005-10-21 | 2007-04-25 | Autoliv Dev | Assessing blood concentration of a volatile constituent |
| US8377705B2 (en) * | 2009-01-29 | 2013-02-19 | Delphi Technologies, Inc. | Breath analyzer system and method of operating the same |
| CN201761368U (en) * | 2010-05-12 | 2011-03-16 | 李明航 | Remote wireless monitoring system for alcoholic content of drivers |
| CN102303529A (en) * | 2011-05-30 | 2012-01-04 | 钟克雄 | Vehicle door opening and switch remote controller (and key) for preventing user from driving under influence |
| SE536782C2 (en) * | 2012-08-24 | 2014-08-05 | Automotive Coalition For Traffic Safety Inc | Exhalation test system with high accuracy |
-
2018
- 2018-07-24 CN CN201810822117.6A patent/CN109061124B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410754A (en) * | 1997-01-14 | 2003-04-16 | 大塚制药株式会社 | Method and device for stably testing isotope using spectroscope |
| CN201867411U (en) * | 2010-11-01 | 2011-06-15 | 青岛金弘测控技术发展有限公司 | Alcohol tester matched with mobile communication terminal |
| CN104487844A (en) * | 2012-06-19 | 2015-04-01 | 艾可系统瑞典公司 | Method for measuring breath alcohol concentration and apparatus therefor |
| CN102991353A (en) * | 2012-12-06 | 2013-03-27 | 安科智慧城市技术（中国）有限公司 | Vehicular alcohol detection system, method and automobile |
| CN205426914U (en) * | 2015-12-15 | 2016-08-03 | 深圳安维森实业有限公司 | Alcohol gas concentration verifying unit |
| CN106526153A (en) * | 2015-12-15 | 2017-03-22 | 深圳安维森实业有限公司 | Alcohol gas concentration calibration device |
| CN107618370A (en) * | 2017-10-17 | 2018-01-23 | 北京长城华冠汽车科技股份有限公司 | Alcohol detection control device, vehicle and alcohol detection control method |
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