CN105954504B - Quick alcohol determining signal processing method and preliminary survey device - Google Patents
Quick alcohol determining signal processing method and preliminary survey device Download PDFInfo
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Abstract
The invention discloses quick alcohol determining signal processing method, step is：Start；Testee is blown by device inflatable mouth, and microphone carries out blowing wheat detection, and alcohol sensor is detected alcohol content；Microprocessor judges to blow whether wheat succeeds by preset wheat time and the effective wheat dynamics of blowing of effectively blowing, if so, entering in next step, no return；Determine the start time t for blowing wheatsWith end time te；Calculate the change rate for blowing wheat process alcohol content curve；Acquisition blows wheat starting point and corresponds to alcohol content change rate Is；Obtain the maximum value I of alcohol content curvilinear motion rate during blowing wheatm；Judge difference Im‑IsWhether the threshold value I of setting is more thanth, if it is, alarm, otherwise safety instruction；Judge whether to be continuing with test device, if it is returns and use, otherwise terminate, pass hull closure.Using alcohol sensor response curve change rate qualitatively judge measured whether drunk driving, can quickly judge, is not protected from environmental.
Description
Technical field
The present invention relates to alcohol detection technical fields, and in particular to quick alcohol determining signal processing method and preliminary survey dress
It sets.
Background technology
In recent years, with China's rapid development of economy, national vehicle guaranteeding organic quantity and motor vehicle driving number are continuous
Increase, thus cause road traffic accident high, according to statistics 50% or more traffic accident with drive when intoxicated it is related.With this
Meanwhile the spirits culture of Chinese tradition is prevailing, as drunk driving enters the implementation of punishment, sentences to what whether motor vehicle driving personnel drove when intoxicated
It is broken into the key points and difficulties to work for traffic administration.Under such strong application demand background, the alcohol of various on-site law-enforcings
Detection device is come into being.
China traffic-police on-site law-enforcing generally uses expiration formula alcohol detection technology at present.Expiration formula alcohol detection technology
It is broadly divided into semiconductor, electrochemistry (fuel cell), infrared spectrum, colorimetric and gas chromatograph this five class.Due to cost, use
The influence of the factors such as the requirement of environment and portability mainly uses semiconductor, electrochemistry and infrared in road traffic on-site law-enforcing
The detection technique of line spectrum three types.
In common alcohol detection technology, semiconductor alcohol tester generally uses the gas-sensitive property of particular semiconductor to examine
Alcohol is surveyed, its resistance value can be caused to decline when alcohol concentration increases in tested gas, eventually by detectable voltage change
Form embody.But traditional semiconductor alcohol tester is influenced very greatly by operating ambient temperature, it also can be other in by environment
The interference of sensitive gas.The electricity that electrochemical sensor is formed using alcohol during fuel cell surface is converted to acetic acid
Stream judges the alcohol amount of fuel cell consumption by the amplification detection of Weak current, to which the alcohol that detection is tested in gas contains
Amount.The drift of electrochemistry alcohol sensor is very big, and when use needs periodic calibration, and working service is cumbersome, and of high cost.It is infrared
Spectrum alcohol detection technology is detected wine in gas using the gas of different alcohol concentrations to the different decision of infrared ray absorbing degree
The content of essence.
At the same time, the continuity and minimum expiration amount that the national standard squadron of expiration formula alcohol detection exhales all are wanted
It asks：Wine inspection instrument should start to sample when exhaled gas volume is more than 1L, when sampling the duration of exhaled gas should be greater than 2.5
Second；If being interrupted in exhalation process, wine inspection instrument should send out alarm signal；When exhalation flow rate is less than 0.10L/s, it should be regarded as exhaling
It interrupts.Wine, which examines instrument, must use suitable blowpipe, and when gas velocity is 0.17L/s, air pressure should be no more than 25hPa.Actually holding
During method, it is tested driver and response/recovery time existing for bad and sensor itself is grasped to gassing time, dynamics,
It is enforced the law using the live alcohol detection of existing instrument often time-consuming and laborious, influences traffic.However, not all driver needs
Quantitative alcohol detection is carried out, part traffic policeman also recognizes this problem in law enforcement, they attempt using artificial
Detection (allowing tested driver to breathe out without a break in traffic police's hand on duty, the method that traffic police smells with one's nose) reaches rapid preliminary screening
Purpose, although this method can achieve the purpose that quick and precisely screening, driver's halitosis that may be present, edible thorn
Swashing property food can bring huge body and mind to injure to painstaking traffic police.
Invention content
It is an object of the invention to overcome problem above of the existing technology, quick alcohol determining signal processing side is provided
Method and preliminary survey device, alcohol observational measurement of the invention, the reason of may be implemented quickly to measure are the changes by alcohol content
Rate judged, withouts waiting for judging again after alcohol content is stablized, solve traditional alcohol testing equipment due to
Alcohol sensor exists compared with long response time, and the problem for keeping time of measuring very long, can be measured and be entered next with fast qualitative
Secondary measurement.
To realize above-mentioned technical purpose and the technique effect, the invention is realized by the following technical scheme：
Quick alcohol determining signal processing method, includes the following steps：
Step 1: starting, starter enters step two；
Step 2: testee is blown by device inflatable mouth, microphone carries out blowing wheat detection, meanwhile, alcohol sensor is opened
Beginning is detected alcohol content, subsequently into step 3；
Step 3: microprocessor has detected after blowing wheat signal, the microprocessor is by presetting when effectively blowing wheat
Between and effectively blow wheat dynamics judgement blow whether wheat succeeds, if so, four are entered step, if not, return to step two；
Step 4: the microprocessor determines the start time t for blowing wheatsWith end time te, enter step five；
Step 5: the microprocessor is calculated from blowing wheat start time tsTo end time teThe change of middle alcohol content curve
Rate, and enter step 6；
Alcohol content change rate I is corresponded to Step 6: obtaining and blowing wheat starting points, enter step seven；
Wheat starting point is blown to the maximum value I for blowing alcohol content curvilinear motion rate in wheat end point process Step 7: obtainingm, go forward side by side
Enter step 8；
Step 8: judging to blow the maximum value of alcohol content curvilinear motion rate during wheat and blowing the variation of wheat starting point alcohol content
The difference I of ratem-IsWhether the threshold value I of setting is more thanth, if it is, entering step nine, otherwise enter step ten；
Step 9: buzzer sends out rapid alarm, LED sends out flicker feux rouges, after alarm, enters step ten
One；
Step 10: buzzer sends out long as safety instruction sound, LED sends out the green light of flicker, after prompt, enters
Step 11；
Step 11: judging whether to be continuing with test device, if it is return to step two, otherwise enter step ten
Two；
Step 12: terminating, pass hull closure.
In a preferred embodiment of the present invention, further comprise, a kind of preliminary survey device, preliminary survey device includes：
Microphone, the microphone are used to receive the process that blows afloat of testee, and wheat signal is blown in acquisition, and will blow wheat signal biography
Transport to microprocessor；
Alcohol sensor, the alcohol sensor are connected to the microprocessor, and the alcohol sensor is for detecting sky
Alcohol content in gas；
Buzzer, the buzzer are connected to the microprocessor, and the buzzer is for sending out voice prompt or alarm
Sound；
LED, the LED are connected to the microprocessor, and the LED is for sending out light prompt or visual alarm；
The microprocessor is the processing center of the preliminary survey device, and the microprocessor comes from the Mike for handling
Wind blows wheat signal and the alcohol content signal from the alcohol sensor.
In a preferred embodiment of the present invention, further comprise, wheat detection signal is blown in the microphone acquisition, described
Alcohol sensor obtains alcohol content signal, blows wheat detection signal and the alcohol content signal described in the microprocessor acquisition
Afterwards, the start time t for blowing wheat is determinedsWith end time te, it is bent that alcohol content in wheat start time to time end point process is blown in calculating
The change rate of line, the microprocessor obtains respectively blows the corresponding alcohol content change rate I of wheat starting pointsWith blow alcohol during wheat
The maximum value of alcohol content curvilinear motion rate during wheat is blown in the maximum value Im of content curvilinear motion rate, the microprocessor judgement
With the difference I for blowing wheat starting point alcohol content change ratem-IsWhether the threshold value I of setting is more thanth, the buzzer and the LED roots
According to Im-IsWhether the threshold value I of setting is more thanthThe case where send out different acousto-optic hints.
The beneficial effects of the invention are as follows:
The alcohol observational measurement of one, the present invention, the reason of may be implemented quickly to measure are the variations by alcohol content
Rate is judged, withouts waiting for judging again after alcohol content is stablized, solves traditional alcohol testing equipment due to wine
Smart sensor exists compared with long response time, and the problem for keeping time of measuring very long, can be measured and be entered next time with fast qualitative
It measures.
Secondly, the present invention quick alcohol determining signal processing method, do not interfered by environment, for example, drunk driving detect
In the process, with vehicle, other people drink the situation that in-vehicle air alcohol content can be caused excessively high, and the alcohol in environment equally can be by wine
Smart sensor detects, the present invention is judged by the detection of change rate, can to avoid the interference of alcohol content in environment, no matter by
The process that survey person blows wheat is sensor response phase caused by environment, saturation plateau or Restoration stage, is blown by measured
The variation for the alcohol response change rate that gas generates can keep being positively correlated with measured institute blowing alcohol content substantially, because
This, will not be interfered by environment, and accuracy in detection is high.
Thirdly, the present invention by blowing wheat process judge whether measured successfully blows, the time of success air blowing and air-blowing quantity
Demand is relatively low, can quickly judge.
Four, the present invention using alcohol sensor response curve change rate variation qualitatively judge measured whether wine
It drives, can quickly judge without protected from environmental, solution scene is driven when intoxicated traditional present in traffic violation inspection
Instrument detects time and effort consuming, and artificial screening influences the problem of traffic police's physical and mental health.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, with presently preferred embodiments of the present invention and attached drawing is coordinated to be described in detail below.This hair
Bright specific implementation mode is shown in detail by following embodiment and its attached drawing.
Description of the drawings
Technical solution in technology in order to illustrate the embodiments of the present invention more clearly, in being described below to embodiment technology
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the present invention
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is flow chart of the method for the present invention；
Fig. 2 is the preliminary survey schematic diagram of device of the present invention；
Fig. 3 is not spirituosity in environment, and measured blows containing in the case of alcohol, alcohol sensor response curve；
Fig. 4 is corresponding rate of change curve chart in Fig. 3；
Fig. 5 is to contain alcohol in environment, and measured blows containing in the case of alcohol, and air blowing process is responded in environment alcohol
Stage, the response curve of alcohol sensor；
Fig. 6 is the corresponding rate of change curve chart in Fig. 5；
Fig. 7 is to contain alcohol in environment, and measured blows containing in the case of alcohol, satisfies in environment alcohol in air blowing process
And plateau, the response curve of alcohol sensor；
Fig. 8 is the corresponding rate of change curve chart in Fig. 7；
Fig. 9 is to contain alcohol in environment, in the case that measured's air blowing contains alcohol, in environment alcohol in air blowing process
Restoration stage, the response curve of alcohol sensor；
Figure 10 is corresponding rate of change curve chart in Fig. 9.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Shown in referring to Fig.1, a kind of method of quick alcohol determining signal processing is disclosed in the present embodiment, this method includes
Step in detail below：
Step 1: starting, starter enters step two；
Step 2: testee is blown by device inflatable mouth, microphone carries out blowing wheat detection, meanwhile, alcohol sensor is opened
Beginning is detected alcohol content, subsequently into step 3；
Step 3: microprocessor has detected after blowing wheat signal, above-mentioned microprocessor is by presetting when effectively blowing wheat
Between and effectively blow wheat dynamics judgement blow whether wheat succeeds, if so, four are entered step, if not, return to step two；
Step 4: above-mentioned microprocessor determines the start time t for blowing wheatsWith end time te, enter step five；
Step 5: above-mentioned microprocessor is calculated from blowing wheat start time tsTo end time teThe change of middle alcohol content curve
Rate, and enter step 6；
Alcohol content change rate I is corresponded to Step 6: obtaining and blowing wheat starting points, enter step seven；
Wheat starting point is blown to the maximum value I for blowing alcohol content curvilinear motion rate in wheat end point process Step 7: obtainingm, go forward side by side
Enter step 8；
Step 8: judging to blow the maximum value of alcohol content curvilinear motion rate during wheat and blowing the variation of wheat starting point alcohol content
The difference I of ratem-IsWhether the threshold value I of setting is more thanth, if it is, entering step nine, otherwise enter step ten；
Step 9: buzzer sends out rapid alarm, LED sends out flicker feux rouges, after alarm, enters step ten
One；
Step 10: buzzer sends out long as safety instruction sound, LED sends out the green light of flicker, after prompt, enters
Step 11；
Step 11: judging whether to be continuing with test device, if it is return to step two, otherwise enter step ten
Two；
Step 12: terminating, pass hull closure.
Above-mentioned alcohol observational measurement method, the reason of may be implemented quickly to measure, are carried out by the change rate of alcohol content
Judge, withouts waiting for judging again after alcohol content is stablized, solve traditional alcohol testing equipment due to alcohol sensing
Device exists compared with long response time, and the problem for keeping time of measuring very long, can be measured and be entered with fast qualitative and measures next time.
Method in embodiment 1 has superiority, concrete reason as follows than traditional alcohol detection method：
The longer major reason of traditional alcohol content detection device detection time is that alcohol sensor presence is longer
Response time, alcohol content is only just shown after response process, while the recovery time of alcohol sensor is longer, only
It can just be measured next time after recovery.
The reason of alcohol observational measurement in embodiment 1 may be implemented quickly to measure be by the change rate of alcohol content into
Row judges, withouts waiting for making a decision again after alcohol content is stablized.
The method of embodiment 1 is not interfered by environment, for example in drunk driving detection, people in the same car, which drinks, leads to in-vehicle air wine
Smart too high levels, the alcohol in environment equally detects by alcohol sensor, embodiment 1 be by the change rate of alcohol content come
Judge testing result, can effectively avoid environmental disturbances.
It in blowing wheat detection process, as shown in figs. 3-10, is compared by Fig. 3 and Fig. 4, Fig. 5 and Fig. 6 is compared, Fig. 7 and Fig. 8
Comparison, Fig. 9 and Figure 10 are compared, no matter during measured blows wheat, the sound of caused alcohol sensor under environment alcohol factor
Stage, saturation plateau or Restoration stage are answered, the variation that the alcohol generated of being blown by measured responds change rate substantially may be used
To keep being positively correlated with the alcohol content that measured is blown.Therefore, Fig. 3-10 can be clearly showed that, be examined by change rate
It surveys and judges, the interference of environment alcohol can be effectively prevented from.
Also, is judged by blowing the process of wheat in embodiment 1, judge whether driver successfully blows wheat, successfully blow wheat
Time and air-blowing quantity require relatively low in the entire method, and the sensitivity of microphone and alcohol sensor is higher, can quickly judge,
Improve the efficiency that detection judges.
Embodiment 2
A kind of preliminary survey device is disclosed in embodiment 2, which can realize the method in embodiment 1, such as institute in Fig. 2
Show, which mainly there are following sections：
Microphone, above-mentioned microphone are used to receive the process that blows afloat of testee, and wheat signal is blown in acquisition, and will blow wheat signal biography
Transport to microprocessor.
Alcohol sensor, above-mentioned alcohol sensor are connected to above-mentioned microprocessor, and above-mentioned alcohol sensor is for detecting sky
Alcohol content in gas.
Buzzer, above-mentioned buzzer are connected to above-mentioned microprocessor, and above-mentioned buzzer is for sending out voice prompt or alarm
Sound.
LED, above-mentioned LED are connected to above-mentioned microprocessor, and above-mentioned LED is for sending out light prompt or visual alarm.
Above-mentioned microprocessor is the processing center of above-mentioned preliminary survey device, and above-mentioned microprocessor comes from above-mentioned Mike for handling
Wind blows wheat signal and the alcohol content signal from above-mentioned alcohol sensor.
The operation principle of preliminary survey device in embodiment 2：Wheat detection signal, above-mentioned alcohol sensing are blown in above-mentioned microphone acquisition
Device obtains alcohol content signal, and above-mentioned microprocessor obtains above-mentioned after blowing wheat detection signal and above-mentioned alcohol content signal, determines
Blow the start time t of wheatsWith end time te, calculate the change for blowing alcohol content curve in wheat start time to time end point process
Rate, above-mentioned microprocessor obtains respectively blows the corresponding alcohol content change rate I of wheat starting pointsAlcohol content during wheat is bent with blowing
The maximum value Im of Linear change rate, above-mentioned microprocessor judge to blow the maximum value of alcohol content curvilinear motion rate during wheat and blow wheat
The difference I of starting point alcohol content change ratem-IsWhether the threshold value I of setting is more thanth, above-mentioned buzzer is with above-mentioned LED according to Im-Is
Whether the threshold value I of setting is more thanthThe case where send out different acousto-optic hints.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (3)
1. quick alcohol determining signal processing method, which is characterized in that include the following steps：
Step 1: starting, starter enters step two；
Step 2: testee is blown by device inflatable mouth, microphone carries out blowing wheat detection, meanwhile, alcohol sensor starts pair
Alcohol content is detected, subsequently into step 3；
Step 3: microprocessor has detected after blowing wheat signal, the microprocessor by it is presetting effectively blow the wheat time and
It effectively blows the judgement of wheat dynamics and blows whether wheat succeeds, if so, four are entered step, if not, return to step two；
Step 4: the microprocessor determines the start time t for blowing wheatsWith end time te, enter step five；
Step 5: the microprocessor is calculated from blowing wheat start time tsTo end time teThe change rate of middle alcohol content curve,
And enter step 6；
Alcohol content change rate I is corresponded to Step 6: obtaining and blowing wheat starting points, enter step seven；
Wheat starting point is blown to the maximum value I for blowing alcohol content curvilinear motion rate in wheat end point process Step 7: obtainingm, and enter step
Eight；
Step 8: judging to blow the maximum value of alcohol content curvilinear motion rate during wheat and blowing wheat starting point alcohol content change rate
Difference Im-IsWhether the threshold value I of setting is more thanth, if it is, entering step nine, otherwise enter step ten；
Step 9: buzzer sends out rapid alarm, LED sends out flicker feux rouges, after alarm, enters step 11；
Step 10: buzzer sends out long as safety instruction sound, LED sends out the green light of flicker, after prompt, enters step
11；
Step 11: judging whether to be continuing with test device, if it is return to step two, otherwise enter step 12；
Step 12: terminating, pass hull closure.
2. a kind of preliminary survey device completes quick alcohol determining signal processing method described in claim 1, which is characterized in that
Preliminary survey device includes：
Microphone, the microphone are used to receive the process that blows afloat of testee, and wheat signal is blown in acquisition, and will blow wheat signal transmission extremely
Microprocessor；
Alcohol sensor, the alcohol sensor are connected to the microprocessor, and the alcohol sensor is for detecting in air
Alcohol content；
Buzzer, the buzzer are connected to the microprocessor, and the buzzer is for sending out voice prompt or alarm sound；
LED, the LED are connected to the microprocessor, and the LED is for sending out light prompt or visual alarm；
The microprocessor is the processing center of the preliminary survey device, and the microprocessor is for handling from the microphone
Blow wheat signal and the alcohol content signal from the alcohol sensor.
3. preliminary survey device according to claim 2, which is characterized in that wheat detection signal is blown in the microphone acquisition, described
Alcohol sensor obtains alcohol content signal, blows wheat detection signal and the alcohol content signal described in the microprocessor acquisition
Afterwards, the start time t for blowing wheat is determinedsWith end time te, it is bent that alcohol content in wheat start time to time end point process is blown in calculating
The change rate of line, the microprocessor obtains respectively blows the corresponding alcohol content change rate I of wheat starting pointsWith blow alcohol during wheat
The maximum value I of content curvilinear motion ratem, the microprocessor judges to blow the maximum value of alcohol content curvilinear motion rate during wheat
With the difference I for blowing wheat starting point alcohol content change ratem-IsWhether the threshold value I of setting is more thanth, the buzzer and the LED roots
According to Im-IsWhether the threshold value I of setting is more thanthThe case where send out different acousto-optic hints.
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| CN112485456A (en) * | 2020-11-16 | 2021-03-12 | 深圳市因特迈科技有限公司 | Correction method for quickly checking alcohol detection result and alcohol detector |
| CN115032250B (en) * | 2022-04-24 | 2024-04-16 | 深圳市华盛昌科技实业股份有限公司 | Alcohol concentration detection method and device, wearable equipment and storage medium |
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| US4127780A (en) * | 1975-06-30 | 1978-11-28 | Kimbell Charles L | Periodic sampling concentration indicator |
| DE3119341A1 (en) * | 1981-05-15 | 1982-12-02 | Sachs Systemtechnik Gmbh, 8720 Schweinfurt | Breath alcohometer |
| GB9525513D0 (en) * | 1995-12-14 | 1996-02-14 | Lion Lab Plc | Measuring devices |
| US20050061057A1 (en) * | 2003-09-22 | 2005-03-24 | Lueck Keith W. | Interference detection systems and methods |
| US20090205407A1 (en) * | 2004-06-01 | 2009-08-20 | National Patent Analytical Systems, Inc. | Machine for testing the breath alcohol (ethanol) content of persons having drunk alcoholic beverages |
| CN101214151B (en) * | 2007-12-29 | 2010-08-18 | 广州医学院第一附属医院 | Method and device for pressure dividing monitoring and estimating arterial blood CO2 by using respiratory gas CO2 |
| CN102083240A (en) * | 2009-11-30 | 2011-06-01 | 深圳富泰宏精密工业有限公司 | Mobile telephone |
| US8512676B1 (en) * | 2012-03-07 | 2013-08-20 | Wisconsin Alumni Research Foundation | Detection of rate changes in systematic oscillations of metabolic athways by monitoring isotope ratios |
| EP2816352B1 (en) * | 2013-06-21 | 2016-12-28 | Sensirion AG | Concentration measurements with a mobile device |
| CN203745466U (en) * | 2013-12-31 | 2014-07-30 | 河南汉威电子股份有限公司 | Detector for alcohol content of exhaled air |
| CN203772865U (en) * | 2014-01-17 | 2014-08-13 | 东莞市寰康电子科技有限公司 | Alcohol tester with flow detection function |
| JP6441650B2 (en) * | 2014-11-20 | 2018-12-19 | 株式会社日立製作所 | Magnetic resonance imaging system |
| CN105286879B (en) * | 2015-09-16 | 2018-01-23 | 北京百纳威尔无线通信设备有限公司 | Safe driving duration determines method, apparatus and terminal |
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