CN106308816A - Infrared alcohol detector and detection method thereof - Google Patents
Infrared alcohol detector and detection method thereof Download PDFInfo
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- CN106308816A CN106308816A CN201610685588.8A CN201610685588A CN106308816A CN 106308816 A CN106308816 A CN 106308816A CN 201610685588 A CN201610685588 A CN 201610685588A CN 106308816 A CN106308816 A CN 106308816A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
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Abstract
The invention discloses an infrared alcohol detector and a detection method thereof. The detector comprises an infrared detection mechanism, an infrared thermal imaging mechanism and a main machine, wherein the infrared detection mechanism and the infrared thermal imaging mechanism are both connected with the main machine. The detection method comprises the following steps: a, instrument positioning; b, signal collection; c, signal conversion; d, processing judgment. The infrared alcohol detector has the advantages of being quick in analysis speed, quick and effective, high in response rate, good in operability, high in detection flexibility, long in service life, good in stability, recyclable, economical and practical.
Description
Technical field
The invention belongs to alcohol detection technical field, particularly relate to a kind of infrared alcohol-detection instrument and detection method thereof.
Background technology
Along with the fast development of auto industry, the vehicle accident caused because driving when intoxicated grows with each passing day, the life to the people
Whether the harm of life property safety gradually highlights, and detect driver and drive when intoxicated and can effectively control the infringement of driver,
Also it is one of the important measures in the evidence obtaining of vehicle accident " Invest, Then Investigate ".Judging whether it is to drive when intoxicated, optimal method is inspection
Look into the BAC (Blood Alcohol Concentration) of driver, i.e. alcohol concentration in blood.Investigate on the spot in the scene of the accident
Or in the daily traffic checking of traffic-police, the most simple and effective scheme is the alcohol content during Site Detection driver exhales.
The alcohol tester that traffic police is used at present, clumsy, the most inefficient, and in view of technology acuracy reason
Cannot function as evidence material not yet.Method of testing such as blood testing method, this method is direct, error is little, but this method sets
Standby expensive, need good laboratory environment, detect time length and need to extract blood sample, such efficiency is low, cost is high,
Limit the popularization of this method；The detection of expiration alcohol detection method quickly, uses flexibly, is suitable at traffic administration onsite application,
This method is easily subject to environment, some drugs and the impact of detected person's fitness so that detection efficiency is substantially reduced, and causes
Traffic jam.
Summary of the invention
Present invention aim at solving above-mentioned technical problem present in prior art, it is provided that a kind of infrared alcohol-detection instrument
And detection method, there is analysis speed fast, the most effectively, responsiveness is high, and operability is low, and detection sensitivity is high, service life
Long, good stability, can be recycled, economical and practical advantage.
In order to solve above-mentioned technical problem, the present invention adopts the following technical scheme that
A kind of infrared alcohol-detection instrument, it is characterised in that: include infrared acquisition mechanism, infrared thermal imaging sweep mechanism and master
Machine, infrared acquisition mechanism and infrared thermal imaging sweep mechanism are all connected with main frame, and infrared acquisition mechanism includes pedestal, infrared emission
Device, clamping plate and infrared receiver panel, base runner connects infrared transmitter, and clamping plate are symmetrically distributed in the side of pedestal, infrared connects
Receiving panel to be located on pedestal, clamping plate are provided with reflecting mirror, and infrared receiver panel is provided with Infrared Detectors, and Infrared Detectors connects
Main frame, main frame is provided with alarm lamp；This survey meter has simple in construction, and motility is strong, analyzes speed fast, the most effectively, and response
Rate is high, and operability is low, and detection sensitivity is high, and service life is long, and good stability can be recycled, economical and practical advantage.
Further, infrared thermal imaging sweep mechanism includes housing, photographic head, temperature probe and process circuit, photographic head and
Temperature probe is respectively arranged on housing, processes circuit and connects photographic head and temperature probe respectively, processes circuit and is located in housing, place
Reason circuit connects main frame, is scanned face by photographic head, obtains image information, and temperature probe obtains temperature information, by
Process circuit counting and synthesize the image information that the different parts of a kind of face all has temperature heat differential to show, and convert it to image
Temperature signal exports.
Further, main frame include that the light intensity signal of telecommunication receives circuit, electric image signal receives circuit, voltage conversion circuit, low
Bandpass filter, signaling conversion circuit and microprocessor, the light intensity signal of telecommunication receives circuit and connects Infrared Detectors, and electric image signal connects
Receiving circuit connection and process circuit, the light intensity signal of telecommunication receives circuit and is all connected with voltage conversion circuit with electric image signal reception circuit,
Voltage conversion circuit connects low pass filter, and low pass filter connects signaling conversion circuit, and signaling conversion circuit connects micro-process
Device, microprocessor connects current converter circuit, and current converter circuit connects alarm lamp, and voltage conversion circuit is by the light intensity signal of telecommunication
Receive circuit and electric image signal receives the next signal of circuit transmission and carries out conversion amplification, low pass filter carry out denoising, carry
Take out useful, stable signal, then by the transformation function of signaling conversion circuit, be converted into the signal that microprocessor is identified, logical
After crossing microprocessor collection, analyzing and calculate, result of calculation is sent to current converter circuit and changes, the electric current after conversion
Signal goes to stimulate alarm lamp, and when reaching default electric current warning rated value, alarm lamp will flash.
Further, voltage conversion circuit connect have feedback resistance, be connected between feedback resistance with voltage conversion circuit have super
Precompensation electric capacity, owing to detected current signal is the faintest, the signal of telecommunication can be amplified by voltage conversion circuit, amplification process
Middle circuit can produce concussion, causes data signal unstable, and the setting of lead compensation electric capacity is prevented from circuit and produces concussion, carries
The stability of high circuit, feedback resistance plays the effect of the size of input impedance, beneficially circuit when regulation signal of telecommunication conversion is amplified
Keep stable.
Further, microprocessor includes signal acquisition circuit, counting circuit and analysis circuit, and signal acquisition circuit connects and divides
Analysis circuit, analyzes circuit and connects counting circuit, and counting circuit connects current converter circuit, and signal acquisition circuit is used for gathering signal
The signal that change-over circuit sends, is analyzed sorting out by analyzing circuit, counting circuit completes computing.
Further, analyze circuit and include data analysis circuit and graphical analysis circuit, data analysis circuit and graphical analysis
Circuit is all connected with counting circuit, and data analysis circuit is for identifying that the data with infrared intensity signal in clutter are believed
Number, graphical analysis circuit for identifying the picture signal with image temperature information in clutter, counting circuit to this two
Kind signal is carried out individually, COMPREHENSIVE CALCULATING.
Further, being provided with power control circuit in pedestal, power control circuit connects infrared transmitter, and pedestal is provided with out
Closing, switch corresponding with power control circuit, open switch activated power control circuit, power control circuit sends current signal
To infrared transmitter, infrared light launched by infrared transmitter.
The detection method of a kind of infrared alcohol-detection instrument, it is characterised in that comprise the steps:
A () instrument is in place: detection makes two bites at a cherry, and every 1～2min, first law-executor breaks clamping plate into two with one's hands so that it is clamping quilt
The both sides of survey person's finger tip so that the finger tip of measured is between two clamping plates and infrared receiver panel, adjust infrared transmitter
And the angle between pedestal, control angle between 45 °～90 °, the most hand-held infrared thermal imaging sweep mechanism, make photographic head energy
Capturing the head portrait of measured, finger tip has abundant arteriole vasoganglion, is conducive to showing the pulsatile change of transmitted light intensity, inspection
Survey two different finger tips, improve the effectiveness of detection；
B () signal collection: open switch, orders about power control circuit and produces electric current, infrared transmitter obtains current signal,
Launching infrared light, infrared light reflects after the finger tip of measured, reflects, and the infrared light after refraction directly arrives infrared
Receiving panel, the infrared light after reflection is reflected mirror again and reflexes on infrared receiver panel, Infrared Detectors receiving infrared-ray
Intensity signal, converts it to the light intensity signal of telecommunication, exports as labelling cd, and the head portrait of measured is swept by photographic head simultaneously
Retouching, obtain facial image information, temperature probe sensing obtains face's temperature information, processes circuit and receives facial image information and face
Portion's temperature information, carries out processing calculating, synthesis face temperature pattern information, then converts it to image temperature signal, make
Exporting for labelling its, infrared light is after finger tip, and the biggest counted infrared light can enter tissue, and quilt by skin after being reflected
Corresponding tissue resorption or scattering, ultrared intensity generation pulsatile change after transmission, Infrared Detectors receives these transmissions
After infrared ray, convert it to current signal output, this signal of telecommunication is the faintest, and same face temperature pattern information is converted
For image temperature signal, this current signal is the faintest, all cannot be directly used to process；
C () signal is changed: voltage conversion circuit receives cd and its, is separately converted to voltage signal U1And U2, then
Being sent to low pass filter, the two signal is amplified by low pass filter, by carrying out with default audio range frequency interval
Comparison, absorbs U1And U2In noise, will process after U1And U2Being sent to signaling conversion circuit, signaling conversion circuit is by U1And U2
Being separately converted to data signal and picture signal that microprocessor is identified, voltage conversion circuit is by faint current signal conversion
For voltage signal, signal intensity is exaggerated, simultaneously with circuit noise be also exaggerated, by the two of low pass filter grades of amplifications
Effect, by noise absorbent, it is suppressed that the interference of noise so that voltage signal U1And U2Become more stable, turn through signaling conversion circuit
Facilitate microprocessor identifying processing after changing, improve the sensitivity of detection；
D () processes and judges: signal acquisition circuit gathers data signal and picture signal, sends them to described analysis mould
Block, data analysis circuit identification data signals, graphical analysis circuit identification picture signal, it is then sent to counting circuit, by counting
Calculate circuit to complete to calculate, draw three kinds of results respectively, then by current converter circuit, these three result is respectively converted into correspondence
Current signal I1、I2And I3, and by I1、I2And I3Being sent to alarm lamp, the situation of change of law-executor's overview alarm lamp, according to carrying
Show and judge.I1For the signal of telecommunication after the data signal conversion of infrared intensity signal, I2Picture signal for image temperature information
The signal of telecommunication after conversion, I3The signal of telecommunication after changing with picture signal COMPREHENSIVE CALCULATING for data signal, if I1、I2And I3In
Arbitrarily one electric current reaches the electric current warning rated value that alarm lamp is preset, so that it may triggers alarm lamp flicker, points out this quilt of law-executor
Containing ethanol in survey person's health, take the lead in finding out drunk driving person from large batch of crowd to be detected, then carry out next step ethanol and contain
Measuring examination, the most alcoholic people directly lets pass, and detection efficiency is greatly improved, and alleviates traffic pressure when looking into drunk driving work, soon
Speed is effectively, practical.
Due to the fact that and have employed technique scheme, have the advantages that
The present invention is based on pulsation principle and face temperature heat differential principle, and infrared light is after skin transmission, and light intensity is pulsed
Change, and carry the concentration of each component of organization in blood, Infrared Detectors receives the infrared ray after these transmissions, will
It is converted into current signal output, and this signal of telecommunication is the faintest, and face is scanned by photographic head simultaneously, obtains image information,
Temperature probe obtains temperature information, is synthesized, by processing circuit counting, the figure that the different parts of a kind of face all has temperature heat differential to show
As information, and converting it to image temperature signal and export, this current signal is the faintest, and voltage conversion circuit will
Faint current signal is converted to voltage signal, and signal intensity is exaggerated, simultaneously with circuit noise be also exaggerated, by low
Two grades of amplifications of bandpass filter, by noise absorbent, it is suppressed that the interference of noise so that voltage signal U1And U2Become more steady
Fixed, by microprocessor acquisition process, counting circuit complete to calculate, draw three kinds of results respectively, then pass through current converter circuit
These three result is respectively converted into the current signal I of correspondence1、I2And I3, and by I1、I2And I3It is sent to alarm lamp, I1For red
The signal of telecommunication after the data signal conversion of outer intensity signal, I2For the signal of telecommunication after the picture signal conversion of image temperature information, I3
The signal of telecommunication after changing with picture signal COMPREHENSIVE CALCULATING for data signal, if I1、I2And I3In one electric current any reach report
The electric current warning rated value that warning lamp is preset, so that it may trigger alarm lamp flicker, containing ethanol in prompting this measured's health of law-executor,
The clearest, from large batch of crowd to be detected, rapidly find out drunk driving person, then carry out next step alcohol content test, do not contain
The people of ethanol directly lets pass, and detection efficiency is greatly improved, and alleviates traffic pressure when looking into drunk driving work, effectively, the most practical
Property is strong.Obtaining two kinds of alcohol detection signals, being converted to current signal stimulates alarm lamp, reduces detection error by high sensitivity,
Substantially increase efficiency and the cogency of detection, prevent aleator from escaping.
Survey meter has simple in construction, and motility is strong, analyzes speed fast, and the most effectively, responsiveness is high, and operability is low, inspection
Surveying highly sensitive, service life is long, good stability, can be recycled, economical and practical advantage.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is the schematic flow sheet of the detection method of a kind of infrared alcohol-detection instrument in the present invention；
Fig. 2 is the structural representation of a kind of infrared alcohol-detection instrument in the present invention；
Fig. 3 is the structural representation of mid-infrared detection agency of the present invention.
In figure: 1-infrared acquisition mechanism；2-infrared thermal imaging sweep mechanism；3-main frame；4-pedestal；5-infrared transmitter；
6-clamping plate；7-infrared receiver panel；8-reflecting mirror；9-Infrared Detectors；10-switchs；11-housing；12-photographic head；13-temperature
Probe；14-alarm lamp；15-fixed pedestal.
Detailed description of the invention
As shown in Figure 1 to Figure 3, for a kind of infrared alcohol-detection instrument of the present invention, become including infrared acquisition mechanism 1, infra-red heat
As sweep mechanism 2 and main frame 3, infrared acquisition mechanism 1 includes pedestal 4, infrared transmitter 5, clamping plate 6 and infrared receiver panel 7, base
Seat 4 is provided with fixed pedestal 15, and fixed pedestal 15 is flexibly connected infrared transmitter 5, and clamping plate 6 are symmetrically distributed in the side of pedestal 4,
During detection, being clamped the both sides of measured's finger tip by clamping plate 6, infrared receiver panel 7 is located on pedestal 4, and clamping plate 6 are provided with reflection
Mirror 8, infrared receiver panel 7 is provided with Infrared Detectors 9, and Infrared Detectors 9 connects main frame 3, is provided with power supply and controls electricity in pedestal 4
Road, power control circuit connects infrared transmitter 5, and pedestal 4 is provided with switch 10, and switch 10 is corresponding with power control circuit,
Opening switch 10 startup power control circuit, power control circuit sends current signal to infrared transmitter 5, infrared transmitter 5
Launch infrared light.
Infrared thermal imaging sweep mechanism 2 includes housing 11, photographic head 12, temperature probe 13 and processes circuit, photographic head 12
It is respectively arranged on housing 11 with temperature probe 13, processes circuit and connect photographic head 12 and temperature probe 13 respectively, process circuit and set
In housing 11, process circuit and connect main frame 3, by photographic head 12, face is scanned, obtain image information, temperature probe
13 obtain temperature information, are synthesized, by processing circuit counting, the image letter that the different parts of a kind of face all has temperature heat differential to show
Breath, and convert it to image temperature signal and export.Main frame 3 is provided with alarm lamp 14, and alarm lamp 14 lights, show by
Containing ethanol in survey person's body.
Main frame 3 includes that the light intensity signal of telecommunication receives circuit, electric image signal receives circuit, voltage conversion circuit, low-pass filtering
Device, signaling conversion circuit and microprocessor, the light intensity signal of telecommunication receives circuit and connects Infrared Detectors 9, and electric image signal receives electricity
Road connection processes circuit, and the light intensity signal of telecommunication receives circuit and is all connected with voltage conversion circuit, voltage with electric image signal reception circuit
Change-over circuit connects feedback resistance, is connected and has lead compensation electric capacity, due to tested between feedback resistance with voltage conversion circuit
The current signal surveyed is the faintest, and the signal of telecommunication can be amplified by voltage conversion circuit, and in amplification process, circuit can produce concussion, leads
Cause data signal is unstable, and the setting of lead compensation electric capacity is prevented from circuit and produces concussion, improves the stability of circuit, feedback
Resistance plays the effect of the size of input impedance when regulation signal of telecommunication conversion is amplified, and beneficially circuit keeps stable.
Voltage conversion circuit connects low pass filter, and low pass filter connects signaling conversion circuit, and signaling conversion circuit is even
Connecing microprocessor, microprocessor includes signal acquisition circuit, counting circuit and analysis circuit, signal acquisition circuit linking parsing electricity
Road, analyzes circuit and connects counting circuit, and signal acquisition circuit is for gathering the signal that signaling conversion circuit sends, and signals collecting is electric
Road can arrange frequency acquisition and collection period, completes a data acquisition in collection period, when collection point is counted to reach next adopting
The collection cycle stops gathering, and rationally arranges frequency acquisition and can reduce collection data distortion, reduces data space and amount of calculation.
It is analyzed sorting out by analyzing circuit, counting circuit completes computing.Analyze circuit and include data analysis circuit and graphical analysis
Circuit, data analysis circuit and graphical analysis circuit are all connected with counting circuit, and data analysis circuit is used for identifying in clutter
The data signal with infrared intensity signal, graphical analysis circuit for identify in clutter with image temperature information
Picture signal, both signals are carried out individually by counting circuit, COMPREHENSIVE CALCULATING.
Counting circuit connects current converter circuit, and current converter circuit connects alarm lamp 14, and voltage conversion circuit is by light
The signal that forceful electric power signal receiving circuit and electric image signal reception circuit transmission come carries out conversion and amplifies, low pass filter carry out
Denoising, extracts useful, stable signal, then by the transformation function of signaling conversion circuit, is converted into what microprocessor was identified
Signal, after microprocessor collection, analyzing and calculate, is sent to current converter circuit by result of calculation and changes, conversion
After current signal go to stimulate alarm lamp 14, when reaching default electric current warning rated value, alarm lamp 14 will flash.
The detection method of a kind of infrared alcohol-detection instrument, comprises the steps:
A () instrument is in place: detection makes two bites at a cherry, and every 1～2min, first law-executor breaks clamping plate 6 into two with one's hands so that it is clamping quilt
The both sides of survey person's finger tip so that the finger tip of measured is between two clamping plates 6 and infrared receiver panel 7, adjust infrared emission
Angle between device 5 and pedestal 4, control angle is between 45 °～90 °, and finger tip has abundant arteriole vasoganglion, is conducive to
The pulsatile change of display transmitted light intensity, detects two different finger tips, improves effectiveness and the cogency of detection.The most hand-held red
Exterior-heat image scanning mechanism 2, makes photographic head 12 can capture the head portrait of measured, completes facial information and obtains, temperature probe 13
Complete face's temperature information to obtain.
B () signal collection: open switch 10, orders about power control circuit and produces electric current, infrared transmitter 5 obtains electric current letter
Number, launch infrared light, infrared light reflects after the finger tip of measured, reflects, and the infrared light after refraction directly arrives
Infrared receiver panel 7, the infrared light after reflection is reflected mirror 8 again and reflexes on infrared receiver panel 7, and Infrared Detectors 9 receives
Ultrared intensity signal, converts it to the light intensity signal of telecommunication, exports as labelling cd, the photographic head 12 head to measured simultaneously
As being scanned, obtaining facial image information, temperature probe 13 sensing obtains face's temperature information, processes circuit and receives face's figure
As information and face's temperature information, carry out processing calculating, synthesis face temperature pattern information, then convert it to image temperature
The signal of telecommunication, exports as labelling its, and infrared light is after finger tip, and the biggest counted infrared light can be entered after being reflected by skin
Tissue, and by corresponding tissue resorption or scattering, ultrared intensity generation pulsatile change after transmission, Infrared Detectors 9 receives
Infrared ray after these transmissions, converts it to current signal output, and this signal of telecommunication is the faintest, same face temperature pattern
Information is converted into image temperature signal, and this current signal is the faintest, all cannot be directly used to process.
C () signal is changed: voltage conversion circuit receives cd and its, is separately converted to voltage signal U1And U2, then
Being sent to low pass filter, the two signal is amplified by low pass filter, by carrying out with default audio range frequency interval
Comparison, absorbs U1And U2In noise, will process after U1And U2Being sent to signaling conversion circuit, signaling conversion circuit is by U1And U2
Being separately converted to data signal and picture signal that microprocessor is identified, voltage conversion circuit is by faint current signal conversion
For voltage signal, signal intensity is exaggerated, simultaneously with circuit noise be also exaggerated, by the two of low pass filter grades of amplifications
Effect, by noise absorbent, it is suppressed that the interference of noise so that voltage signal U1And U2Become more stable, turn through signaling conversion circuit
Facilitate microprocessor identifying processing after changing, improve the sensitivity of detection.
D () processes and judges: signal acquisition circuit gathers data signal and picture signal, sends them to described analysis mould
Block, the data signal with infrared intensity signal in data analysis circuit identification clutter, graphical analysis circuit identification mixes
The picture signal with image temperature information in miscellaneous signal, is then sent to counting circuit, counting circuit complete to calculate, point
Do not draw three kinds of results, the comprehensive letter of the most infrared light intensity change fluctuating signal, face's temperature heat differential signal and two kinds of computings
Number, then by current converter circuit, these three result is respectively converted into the current signal I of correspondence1、I2And I3, and by I1、I2With
I3It is sent to alarm lamp 14, the situation of change of law-executor's overview alarm lamp 14, judges according to prompting.I1Believe for infrared light intensity
The signal of telecommunication after the data signal conversion of breath, I2For the signal of telecommunication after the picture signal conversion of image temperature information, I3Believe for data
Number with picture signal COMPREHENSIVE CALCULATING change after the signal of telecommunication, if I1、I2And I3In one electric current any to reach alarm lamp 14 pre-
If electric current warning rated value, so that it may trigger alarm lamp 14 and flash, containing ethanol in prompting this measured's health of law-executor, from greatly
Taking the lead in finding out drunk driving person in the crowd to be detected of batch, then carry out next step alcohol content test, the most alcoholic people is direct
Letting pass, detection efficiency is greatly improved, and alleviates traffic pressure when looking into drunk driving work, effectively, the most practical.
The present invention is based on pulsation principle and face temperature heat differential principle, and infrared light is after skin transmission, and light intensity is pulsed
Change, and carry the concentration of each component of organization in blood, Infrared Detectors 9 receives the infrared ray after these transmissions,
Converting it to current signal output, this signal of telecommunication is the faintest, and face is scanned by photographic head 12 simultaneously, obtains image letter
Breath, temperature probe 13 obtains temperature information, the different parts processing a kind of face of circuit counting synthesis all have temperature heat differential to show
The image information shown, and convert it to image temperature signal and export, this current signal is the faintest, and voltage is changed
Faint current signal is converted to voltage signal by circuit, and signal intensity is exaggerated, simultaneously with circuit noise be also exaggerated,
By the two of low pass filter grades of amplifications, by noise absorbent, it is suppressed that the interference of noise so that voltage signal U1And U2Become
Obtain more stable, by microprocessor acquisition process, counting circuit complete to calculate, draw three kinds of results respectively, then turned by electric current
Change circuit and these three result is respectively converted into the current signal I of correspondence1、I2And I3, and by I1、I2And I3It is sent to alarm lamp
14, I1For the signal of telecommunication after the data signal conversion of infrared intensity signal, I2After the picture signal conversion of image temperature information
The signal of telecommunication, I3The signal of telecommunication after changing with picture signal COMPREHENSIVE CALCULATING for data signal, if I1、I2And I3In any one
Electric current reaches the electric current warning rated value that alarm lamp 14 is preset, so that it may triggers alarm lamp 14 and flashes, points out this measured of law-executor
Containing ethanol in health, the clearest, from large batch of crowd to be detected, rapidly find out drunk driving person, then carry out next step wine
Essence content measuring, the most alcoholic people directly lets pass, and detection efficiency is greatly improved, and alleviates traffic pressure when looking into drunk driving work
Power, effectively, the most practical.Obtaining two kinds of alcohol detection signals, being converted to current signal stimulates alarm lamp 14, passes through Gao Ling
Sensitivity reduces detection error, substantially increases efficiency and the cogency of detection, prevents aleator from escaping.
Survey meter has simple in construction, and motility is strong, analyzes speed fast, and the most effectively, responsiveness is high, and operability is low, inspection
Surveying highly sensitive, service life is long, good stability, can be recycled, economical and practical advantage.
These are only the specific embodiment of the present invention, but the technical characteristic of the present invention is not limited thereto.Any with this
Based on bright, for solving essentially identical technical problem, it is achieved essentially identical technique effect, done simple change, etc.
With replacement or modification etc., all it is covered by among protection scope of the present invention.
Claims (8)
1. one kind infrared alcohol-detection instrument, it is characterised in that: include infrared acquisition mechanism, infrared thermal imaging sweep mechanism and master
Machine, described infrared acquisition mechanism and described infrared thermal imaging sweep mechanism are all connected with described main frame, and described infrared acquisition mechanism wraps
Including pedestal, infrared transmitter, clamping plate and infrared receiver panel, described base runner connects described infrared transmitter, described clamping plate
Being symmetrically distributed in the side of described pedestal, described infrared receiver panel is located on described pedestal, and described clamping plate are provided with reflecting mirror,
Described infrared receiver panel is provided with Infrared Detectors, and described Infrared Detectors connects described main frame, and described main frame is provided with report
Warning lamp.
One the most according to claim 1 infrared alcohol-detection instrument, it is characterised in that: described infrared thermal imaging sweep mechanism
It is respectively arranged on described housing including housing, photographic head, temperature probe and process circuit, described photographic head and described temperature probe
On, described process circuit connects described photographic head and described temperature probe respectively, and described process circuit is located in described housing, institute
State process circuit and connect described main frame.
One the most according to claim 1 infrared alcohol-detection instrument, it is characterised in that: described main frame includes the light intensity signal of telecommunication
Receive circuit, electric image signal receives circuit, voltage conversion circuit, low pass filter, signaling conversion circuit and microprocessor, institute
Stating the light intensity signal of telecommunication and receive the circuit described Infrared Detectors of connection, described electric image signal receives circuit and connects described process electricity
Road, the described light intensity signal of telecommunication receives circuit and is all connected with described voltage conversion circuit with described electric image signal reception circuit, described
Voltage conversion circuit connects described low pass filter, and described low pass filter connects described signaling conversion circuit, and described signal turns
Changing circuit and connect described microprocessor, described microprocessor connects current converter circuit, and described current converter circuit connects institute
State alarm lamp.
One the most according to claim 3 infrared alcohol-detection instrument, it is characterised in that: described voltage conversion circuit connects to be had
Feedback resistance, is connected between described feedback resistance with described voltage conversion circuit and has lead compensation electric capacity.
One the most according to claim 3 infrared alcohol-detection instrument, it is characterised in that: described microprocessor includes that signal is adopted
Collector, counting circuit and analysis circuit, described signal acquisition circuit connects described analysis circuit, and described analysis circuit connects institute
Stating counting circuit, described counting circuit connects described current converter circuit.
One the most according to claim 5 infrared alcohol-detection instrument, it is characterised in that: described analysis circuit includes that data are divided
Analysis circuit and graphical analysis circuit, described data analysis circuit and described graphical analysis circuit are all connected with described counting circuit.
One the most according to claim 1 infrared alcohol-detection instrument, it is characterised in that: it is provided with power supply control in described pedestal
Circuit, described power control circuit connects described infrared transmitter, and described pedestal is provided with switch, described switch and described power supply
Control circuit is corresponding.
8. use the detection method of a kind of infrared alcohol-detection instrument as claimed in claim 1, it is characterised in that include walking as follows
Rapid:
A () instrument is in place: detection makes two bites at a cherry, and every 1～2min, first law-executor breaks described clamping plate into two with one's hands so that it is clamping quilt
The both sides of survey person's finger tip, the finger tip of measured is between two pieces of described clamping plate and described infrared receiver panel, adjusts described red
Angle between external transmitter and described pedestal, control angle is between 45 °～90 °, and the most hand-held described infrared thermal imaging is swept
Retouch mechanism, make described photographic head can capture the head portrait of measured；
B () signal collection: open described switch, orders about described power control circuit and produces electric current, described infrared transmitter obtains
Current signal, launches infrared light, and infrared light reflects after the finger tip of measured, reflects, and the infrared light after refraction is straight
Receiving and reach described infrared receiver panel, the infrared light after reflection reflexes on described infrared receiver panel through described reflecting mirror again,
The intensity signal of described Infrared Detectors receiving infrared-ray, converts it to the light intensity signal of telecommunication, exports as labelling cd, institute simultaneously
Stating photographic head to be scanned the head portrait of measured, obtain facial image information, the sensing of described temperature probe obtains face's temperature
Information, described process circuit receives facial image information and face's temperature information, carries out processing calculating, synthesis face temperature pattern
Information, then converts it to image temperature signal, exports as labelling its；
C () signal is changed: described voltage conversion circuit receives cd and its, is separately converted to voltage signal U1And U2, then
Being sent to described low pass filter, the two signal is amplified by described low pass filter, by with default audio range frequency
Comparing in interval, absorbs U1And U2In noise, will process after U1And U2It is sent to described signaling conversion circuit, described letter
Number change-over circuit is by U1And U2It is separately converted to data signal and picture signal that described microprocessor is identified；
D () processes and judges: described signal acquisition circuit gathers data signal and picture signal, sends them to described analysis mould
Block, described data analysis circuit identification data signals, described graphical analysis circuit identification picture signal, it is then sent to described meter
Calculate circuit, described counting circuit complete to calculate, draw three kinds of results respectively, then by described current converter circuit by these three
Result is respectively converted into the current signal I of correspondence1、I2And I3, and by I1、I2And I3Being sent to described alarm lamp, law-executor observes
The situation of change of described alarm lamp, judges according to prompting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610685588.8A CN106308816A (en) | 2016-08-18 | 2016-08-18 | Infrared alcohol detector and detection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610685588.8A CN106308816A (en) | 2016-08-18 | 2016-08-18 | Infrared alcohol detector and detection method thereof |
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| CN201610685588.8A Pending CN106308816A (en) | 2016-08-18 | 2016-08-18 | Infrared alcohol detector and detection method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109171765A (en) * | 2018-10-31 | 2019-01-11 | 上海嘉孚信息科技有限公司 | Portable noninvasive blood glucose detector device |
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