CN101477043A - Infrared spirit test method and system with curve drafting function - Google Patents
Infrared spirit test method and system with curve drafting function Download PDFInfo
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- CN101477043A CN101477043A CN 200910095212 CN200910095212A CN101477043A CN 101477043 A CN101477043 A CN 101477043A CN 200910095212 CN200910095212 CN 200910095212 CN 200910095212 A CN200910095212 A CN 200910095212A CN 101477043 A CN101477043 A CN 101477043A
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- 238000010998 test method Methods 0.000 title claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000012545 processing Methods 0.000 claims abstract description 16
- 238000007639 printing Methods 0.000 claims abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 9
- 238000005070 sampling Methods 0.000 claims abstract description 8
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 230000005855 radiation Effects 0.000 claims abstract description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 28
- 239000000306 component Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000005669 field effect Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 239000008358 core component Substances 0.000 claims description 2
- GGYFMLJDMAMTAB-UHFFFAOYSA-N selanylidenelead Chemical compound [Pb]=[Se] GGYFMLJDMAMTAB-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 230000003321 amplification Effects 0.000 abstract description 3
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 3
- 230000002238 attenuated effect Effects 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 206010006326 Breath odour Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000010183 spectrum analysis Methods 0.000 description 2
- 101000885321 Homo sapiens Serine/threonine-protein kinase DCLK1 Proteins 0.000 description 1
- 102100039758 Serine/threonine-protein kinase DCLK1 Human genes 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- XTLNYNMNUCLWEZ-UHFFFAOYSA-N ethanol;propan-2-one Chemical compound CCO.CC(C)=O XTLNYNMNUCLWEZ-UHFFFAOYSA-N 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- -1 resistance R 39 Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention discloses a method and a system with a curve drawing function for testing alcohol through infrared light. The system comprises a microprocessor unit, a pulsating light source driving circuit, a parabolic reflecting mirror, an infrared light source, an air chamber, a pack, an infrared detector, a signal amplification processing circuit, an A/D conversion circuit, a wireless printing module, and a GUI display system. A square-wave pulse is produced through a microprocessor; a driving circuit is input to drive the infrared light source; infrared radiation rays are absorbed within the range of a gas characteristic absorption line after infrared light enters the air chamber; the attenuated infrared light passes through a narrow-band pack, projects on the infrared detector, and is converted into an electric signal to be sent into the signal amplification processing circuit; the electric signal is converted into a digital signal through the A/D conversion circuit to be sent into the microprocessor; and the concentration of alcohol is obtained through calculation. The microprocessor sets a certain sampling time interval through a timer, converts acquired data into a concentration value, and then performs real-time display on a graphical user interface display system in a form of a curve.
Description
Technical field
The present invention relates to infrared spirit test method and system, especially relate to a kind of infrared spirit test method and system that has curve drafting function.
Background technology
Along with the fast development of auto industry, the traffic hazard that causes because of driving when intoxicated grows with each passing day, the serious security of the lives and property that is threatening people.In the traffic hazard case is handled, need to detect the troublemaker's that drives when intoxicated BAC (Blood Alcohol Concentration), i.e. BAC is as law court's sworn evidence.The law enfrocement official mainly adopts Noninvasive to detect the driver is carried out evidence expiration alcohol test (Evidential Breath Alcohol Testing), method mostly is based on the NDIR (Non-Dispersive Infrared) spectral analysis technique, the molecule that is compound absorbs selectively to the radiation in some in the infrared spectrum or a certain group specific bands, and absorption intensity is relevant with this compound concentrations.Can detect driver's expiration alcohol concentration (BrAC, Breath Alcohol Concentration) according to this method, calculate BAC by the fixed proportion relation then.
Generally adopt chopper that infrared light is carried out mechanical modulation based on infrared absorption expiration alcohol detecting instrument at present, promptly on the light path between infrared light supply and the air chamber, add a chopper that has a plurality of through holes with the given pace rotation, through hole is covered by the narrow band pass filter of different centre wavelengths respectively, after the light pulse signal that produces is absorbed by air chamber, be converted to electric signal through infrared eye, control the conducting of each passage by the time window of counter, then each channel signal is compared processing, net result is presented on the liquid crystal display.The major defect of this technology is to adopt the mechanical modulation mode, and chopper needs the driven by motor rotation, makes that the optics volume is big, Heavy Weight, and interference is strong, and life-span and reliability reduce; The result who is test on the other hand can not show in real time, is subjected to the interference of oral cavity alcohol easily.
Summary of the invention
At the deficiency of above-mentioned present situation and technology, the object of the present invention is to provide a kind of infrared spirit test method and system that has curve drafting function.It adopts the mode of modulation of source, makes the reliability of system and antijamming capability improve greatly.By passage relatively eliminate that flashing is qualitative, the photoelectric device drift and exhale in the influence of other interfering materials.Microprocessor is set certain sampling time interval by timer in the system, the data of gathering are converted to the alcohol concentration value after real-time rendering on gui display, thereby can judge test validity.
In order to achieve the above object, the technical solution used in the present invention is as follows:
One, a kind of infrared spirit test method that has curve drafting function:
Microprocessor produces the square-wave pulse of certain frequency, input pulsating light source driving circuit drives infrared light supply, after modulated infrared light enters air chamber, in gas characteristic absorption line scope, infrared radiation light is absorbed, the infrared light of decay is 3.95 μ m through centre wavelength, 3.48 after the narrow band pass filter group of μ m and 3.39 μ m, beat on infrared eye, send into signal processing circuit after being converted to electric signal, be converted to digital signal through the A/D change-over circuit then and send into microprocessor, microprocessor is handled each way word signal, calculates alcohol concentration, and with the real-time display density value of the form of curve.
Described filter set comprises that centre wavelength is the narrow band pass filter of 3.95 μ m, 3.48 μ m and 3.39 μ m, 3.95 the infrared light of μ m is not absorbed by any energy-absorbing compound in the air chamber, 3.48 the infrared light of μ m is mainly absorbed by alcohol, the infrared light of 3.39 μ m is mainly absorbed by acetone and water.
Described microprocessor is set certain sampling time interval by timer, the data of gathering is converted to the form with curve shows in the graphical user interface displays system in real time after the alcohol concentration value.
Two, a kind of infrared spirit test system that has curve drafting function:
Comprise microprocessor unit, pulsating light source driving circuit, parabolic type catoptron, infrared light supply, air chamber, filter set, infrared eye, signal processing circuit, A/D change-over circuit, wireless printing module and gui display; The parabolic type catoptron is connected successively with infrared light supply, air chamber, filter set and infrared eye, and infrared light supply, air chamber, filter set and infrared eye are on the same light path; Infrared eye is electrically connected through signal processing circuit and A/D change-over circuit, microprocessor unit is electrically connected with pulsating light source driving circuit, A/D change-over circuit, wireless printing module and gui display respectively, the pulsating light source driving circuit is electrically connected with infrared light supply.
An output terminal of the input termination microprocessor unit of described pulsating light source driving circuit, the drain electrode of field effect transistor output driver Q1 connects infrared light supply, the source ground of Q1, another pin of infrared light supply meets positive source VCC.
In the described alcohol screen test system, microprocessor unit adopts the ARM9 chip, filter set comprises that centre wavelength is the narrow band pass filter of 3.95 μ m, 3.48 μ m and 3.39 μ m, infrared eye adopts the thermoelectric cooling lead selenide detector, wireless printing module core component is the nRF2401 chip, adopt the classical standard connecting circuit of this chip, the A/D change-over circuit adopts the series A/D conversion chip of MAX1214 or National company.
Described gui display: software section comprises the built-in Linux operating system that is implanted in the microprocessor unit, be implanted on the embedded OS GUI back-up system MiniGUI and based on the application program of MiniGUI, hardware components is TFT type LCD and interface circuit thereof.
Described gui display: software section comprises the built-in Linux operating system that is implanted in the microprocessor unit, be implanted on the embedded OS GUI back-up system Qt/Embedded and based on the application program of Qt/Embedded, hardware components is TFT type LCD and interface circuit thereof.
The beneficial effect that the present invention has is:
Adopt the NDIR (Non-Dispersive Infrared) spectral analysis technique, can carry out continuous analysis to gas stream, therefore can describe in the exhalation process real-time change curve of alcohol concentration in the breath, this just makes it to identify to be gas by breathing out in the alveolar or the gas in the oral cavity; Adopt the modulation of source mode to replace mechanical modulation system, can reduce volume and weight, improve reliability, increase the service life; Adopt hyperchannel Difference Absorption mensuration, can get rid of the interference of other energy-absorbing compounds in exhaling,, improve the accuracy of alcohol detection as acetone and water vapour; Adopt the RF Radio Transmission Technology, can automated wireless transfer printing test result.
Description of drawings
Fig. 1 is that apparatus of the present invention constitute block scheme.
Fig. 2 is a pulsating light source driving circuit in apparatus of the present invention.
Fig. 3 is the infrared absorpting light spectras of 2.5 μ m to ethanol, acetone and water vapor between the 4.0 μ m.
Fig. 4 is the interface circuit figure of microprocessor and Liquid Crystal Module in apparatus of the present invention.
Fig. 5 is a touch screen interface circuit diagram in apparatus of the present invention.
Fig. 6 is a signal processing circuit in apparatus of the present invention.
Fig. 7 is a data sampling software flow pattern in apparatus of the present invention.
Among the figure: 1, microprocessor unit, 2, the pulsating light source driving circuit, 3, the parabolic type catoptron, 4, infrared light supply, 5, air chamber, 6, filter set, 7, infrared eye, 8, signal processing circuit, 9, A/D change-over circuit, 10, the wireless printing module, 11, gui display.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As shown in Figure 1, comprise microprocessor unit 1, pulsating light source driving circuit 2, parabolic type catoptron 3, infrared light supply 4, air chamber 5, filter set 6, infrared eye 7, signal processing circuit 8, A/D change-over circuit 9, wireless printing module 10 and gui display 11; Parabolic type catoptron 3 is connected successively with infrared light supply 4, air chamber 5, filter set 6 and infrared eye 7, and infrared light supply 4, air chamber 5, filter set 6 and infrared eye 7 are on the same light path; Infrared eye 7 is electrically connected through signal processing circuit 8 and A/D change-over circuit 9, microprocessor unit 1 is electrically connected with pulsating light source driving circuit 2, A/D change-over circuit 9, wireless printing module 10 and gui display 11 respectively, pulsating light source driving circuit 2 is electrically connected with infrared light supply 4.
As shown in Figure 1, infra-red sensing system sends periodic infrared light according to predefined modulating frequency modulated infrared light source 4, after the infrared light that infrared light supply 4 sends incides air chamber 5, in air chamber 5, interact with it in the gas sample characteristic absorpting spectruming line scope, infrared radiation light is absorbed, and the infrared light that sees through air chamber 5 is received by infrared eye 7 after narrow band pass filter group 6.Because the effect of modulated infrared light, the electric signal of infra-red sensing system output AC, by signal processing circuit 8 thereafter, obtain a direct current signal corresponding with alcohol gas concentration, after being converted to digital signal, A/D change-over circuit 9 sends into microprocessor unit 1.There is temperature sensor to survey its operating ambient temperature in the infra-red sensing system.The signal process microprocessing unit that infra-red sensing system produces, and after software processes such as digital filtering, linear interpolation and temperature compensation, draw the alcohol gas concentration measured value.
Pulsating light source driving circuit 2 as shown in Figure 2, an output terminal of its input termination microprocessor unit 1, the drain electrode of field effect transistor output driver Q1 connects infrared light supply 4, the source ground of Q1, another pin of infrared light supply 4 meets positive source VCC.When pulse is high level, the Q1 conducting, infrared light supply 3 is lighted; When pulse was low level, Q1 ended, and infrared light supply 3 extinguishes.Disturb in order to prevent that current pulse signal produces by ground wire in the light source driving loop, pulsating light source driving circuit 2 should be isolated with the detector signal circuit.
Fig. 3 has described ethanol, acetone and water vapor at the infrared absorpting light spectra of 2.5 μ m to 4.0 μ m.Because it is two-way overlapping that the absorption spectrum of ethanol and acetone exists, therefore when determining the centre wavelength of narrow band pass filter, avoid overlapping bigger zone, diminish thereby make to disturb each other.Therefore, the centre wavelength of reference channel, ethanol passage, acetone passage narrow band pass filter is elected 3.95 μ m, 3.48 μ m, 3.39 μ m respectively as.
Fig. 4 is the interface circuit of liquid crystal display and microprocessor, microprocessor in the example is the ARM9 chip S3C2440A of Samsung company, Liquid Crystal Module is 8 cun LCD module L80T84 of group's wound, according to the logic function of S3C2440A inside lcd controller and pin configuration and the work schedule of LCD module L80T84, the digital enable signal DE of its display part and pixel clock signal DCLK are respectively by VM, the VCLK of microprocessor control, and each 6 of red, green, blue components are formed 18 pixel data bus and microprocessor VD[23:18], VD[15:10], VD[7:2] be connected.
Fig. 5 is the interface circuit of microprocessor and touch-screen, low difference voltage regulator LM1117DT-3.3 provides 3.3V voltage, be used to satisfy microprocessor 3.3V exterior I/O power requirement, touch-screen is made up of longitudinal electrical resistance and lateral resistance, 4 control signal nXPON, nYPON, XMON, the break-make of YMON control two-channel digital transistor FDC6321C, thereby control 4 positioning signal TSXP, TSXM, TSYP, the voltage of TSYM, by the noise of resistance-capacitance type low pass filter filters out X-axis and Y-axis coordinate signal, the analog input end AIN5 and the AIN7 that send into ADC respectively carry out coordinate conversion.
Signal processing circuit as shown in Figure 6, it comprises the logical amplifying circuit of band connection frequency band consistent with carrier frequency, and the logical amplifying circuit of band comprises amplifier integrated circuit U8A and capacitor C 27, resistance R 39, capacitor C 29, resistance R 40, capacitor C 30, resistance R 38, capacitor C 28, capacitor C 31.High-pass filtering comprises capacitor C 32.The controllable gain amplifying circuit comprises with amplifier integrated circuit U8B being the first order amplifier of core, comprise resistance R 41, R42, R43, R44, capacitor C 33, can change this grade Amplifier Gain by the resistance of regulator potentiometer R42, it is the second level fixed gain amplifying circuit of core that the signal of amplifier output at the corresponding levels is sent into U9A, and the effect of diode D2, D3 makes this grade amplifier only export the above signal of zero level.Reference channel is consistent with the amplification treatment circuit of ethanol passage in this example, signal after the processing is sent into the A/D change-over circuit and is converted to digital signal, through relatively removing the influence that the qualitative and photoelectric device drift of flashing produces, thereby obtain ethanol and acetone concentration sum.By adjusting the gain of acetone passage, make when only having ethanol in the specimen of breath, the acetone passage is consistent with the electric signal that the ethanol passage produces, then when having acetone in the expiration sample trees, can obtain the concentration of acetone in the alcohol gas by comparison to acetone passage, ethanol channel signal, then acetone concentration is cut from ethanol acetone concentration sum in proportion, can draw alcohol concentration.
Data sampling process flow diagram as shown in Figure 7 recovers former continuous signal for making sampled signal undistortedly, and sample frequency is greater than the twice of signal highest frequency.Therefore, microprocessor unit 1 control A/D change-over circuit 9 is sampled to continuous analog signal with certain sample frequency, obtain the digital signal of discretize after, read this digital signal and handle accordingly.Microprocessor unit 1 is provided with certain sampling time interval by timer, and starts the A/D sampling unit in the timer interrupt service routine, finishes a data acquisition in this time interval.Master routine is initialization S3C2440A at first, and bus clock is set, initialization GPIO and serial ports, and the setting data highway width, initialization Timer0 port is provided with Eint1 and interrupts being the rising edge triggering mode, the interrupt vector inlet is set and opens Timer0 and the Eint1 interruption.Set sample frequency then and start Timer0, when to the Timer0 timing, program jumps to the Timer0 interrupt service routine, start the sampling of A/D change-over circuit, enter the Eint1 interrupt service routine after A/D converts, read the A/D transformation result and judge whether air blowing continues, if continue then to withdraw from Eint1 and Timer0 interrupt service routine, interrupt to indicate that then EOC puts 1, and close Eint1 and Timer0 interruption that exhalation flow rate then is considered as exhaling less than 0.10L/s and interrupts if exhale.
Claims (8)
1, a kind of infrared spirit test method that has curve drafting function, it is characterized in that: microprocessor produces the square-wave pulse of certain frequency, input pulsating light source driving circuit drives infrared light supply, after modulated infrared light enters air chamber, in gas characteristic absorption line scope, infrared radiation light is absorbed, the infrared light of decay is 3.95 μ m through centre wavelength, 3.48 after the narrow band pass filter group of μ m and 3.39 μ m, beat on infrared eye, send into signal processing circuit after being converted to electric signal, be converted to digital signal through the A/D change-over circuit then and send into microprocessor, microprocessor is handled each way word signal, calculate alcohol concentration, and with the real-time display density value of the form of curve.
2, a kind of infrared spirit test method that has curve drafting function according to claim 1, it is characterized in that: described filter set comprises that centre wavelength is the narrow band pass filter of 3.95 μ m, 3.48 μ m and 3.39 μ m, 3.95 the infrared light of μ m is not absorbed by any energy-absorbing compound in the air chamber, 3.48 the infrared light of μ m is mainly absorbed by alcohol, the infrared light of 3.39 μ m is mainly absorbed by acetone and water.
3, a kind of infrared spirit test method that has curve drafting function according to claim 1, it is characterized in that: described microprocessor is set certain sampling time interval by timer, the data of gathering is converted to the form with curve shows in the graphical user interface displays system in real time after the alcohol concentration value.
4, a kind of described system that has the infrared spirit test method of curve drafting function of claim 1 that implements is characterized in that: comprise microprocessor unit (1), pulsating light source driving circuit (2), parabolic type catoptron (3), infrared light supply (4), air chamber (5), filter set (6), infrared eye (7), signal processing circuit (8), A/D change-over circuit (9), wireless printing module (10) and gui display (11); Parabolic type catoptron (3) and infrared light supply (4), air chamber (5), filter set (6) is connected successively with infrared eye (7), infrared light supply (4), air chamber (5), filter set (6) and infrared eye (7) are on the same light path, infrared eye (7) is electrically connected through signal processing circuit (8) and A/D change-over circuit (9), microprocessor unit (1) respectively with pulsating light source driving circuit (2), A/D change-over circuit (9), wireless printing module (10) and gui display (11) are electrically connected, pulsating light source driving circuit (2) is electrically connected with infrared light supply (4).
5, the system that has the infrared spirit test method of curve drafting function according to claim 4, it is characterized in that: an output terminal of the input termination microprocessor unit (1) of described pulsating light source driving circuit (2), the drain electrode of field effect transistor output driver Q1 connects infrared light supply (4), the source ground of Q1, another pin of infrared light supply (4) meets positive source VCC.
6, the system that has the infrared spirit test method of curve drafting function according to claim 4, it is characterized in that: in the described alcohol screen test system, microprocessor unit (1) adopts the ARM9 chip, filter set (6) comprises that centre wavelength is 3.95 μ m, 3.48 the narrow band pass filter of μ m and 3.39 μ m, infrared eye (7) adopts the thermoelectric cooling lead selenide detector, wireless printing module (10) core component is the nRF2401 chip, adopt the classical standard connecting circuit of this chip, A/D change-over circuit (9) adopts the series A/D conversion chip of MAX1214 or National company.
7, the system that has the infrared spirit test method of curve drafting function according to claim 4, it is characterized in that: described gui display (11): software section comprises the built-in Linux operating system that is implanted in the microprocessor unit (1), be implanted on the embedded OS GUI back-up system MiniGUI and based on the application program of MiniGUI, hardware components is TFT type LCD and interface circuit thereof.
8, the system that has the infrared spirit test method of curve drafting function according to claim 4, it is characterized in that: described gui display (11): software section comprises the built-in Linux operating system that is implanted in the microprocessor unit (1), be implanted on the embedded OS GUI back-up system Qt/Embedded and based on the application program of Qt/Embedded, hardware components is TFT type LCD and interface circuit thereof.
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| CN 200910095212 CN101477043B (en) | 2009-01-05 | 2009-01-05 | Infrared spirit test method and system with curve drafting function |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102288574A (en) * | 2011-07-08 | 2011-12-21 | 华南理工大学 | Device and method for quantitatively analyzing concentration of multi-component oil fume |
| CN103543119A (en) * | 2012-07-12 | 2014-01-29 | 成都科盛石油科技有限公司 | Petroleum logging carbon dioxide detector capable of performing real-time communication |
| CN104019879A (en) * | 2014-05-27 | 2014-09-03 | 成都九洲电子信息系统股份有限公司 | Electronic scale capable of realizing wireless label printing |
| CN105180039A (en) * | 2015-09-10 | 2015-12-23 | 杜诚 | Healthy and intelligent education lighting device |
| CN105486653A (en) * | 2015-12-01 | 2016-04-13 | 昆明勤瑞科技有限公司 | Sulfur dioxide infrared detection device and method |
| CN105699296A (en) * | 2016-02-04 | 2016-06-22 | 杭州巨之灵科技有限公司 | Alcohol detecting instrument and alcohol detecting method |
| CN105717063A (en) * | 2016-02-04 | 2016-06-29 | 杭州巨之灵科技有限公司 | Alcohol detecting device and method based on infrared spectroscopic analysis |
| CN105717062A (en) * | 2016-02-04 | 2016-06-29 | 杭州巨之灵科技有限公司 | Infrared alcohol detection system |
| CN105717064A (en) * | 2016-02-04 | 2016-06-29 | 杭州巨之灵科技有限公司 | Expiration alcohol tester and alcohol testing method |
| CN105738309A (en) * | 2016-02-04 | 2016-07-06 | 杭州巨之灵科技有限公司 | Methane detector and method |
| WO2017107598A1 (en) * | 2015-12-26 | 2017-06-29 | 深圳市贝沃德克生物技术研究院有限公司 | Apparatus for detecting acetone in breaths of diabetes patient |
| CN107991445A (en) * | 2017-11-28 | 2018-05-04 | 江苏康缘药业股份有限公司 | The online test method of concentration of alcohol during a kind of Chinese medicine alcohol precipitation |
| CN109115716A (en) * | 2018-07-12 | 2019-01-01 | 镇江市爱威尔电子有限公司 | A kind of Multifunction infrared gas sensor |
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| US4268751A (en) * | 1979-04-02 | 1981-05-19 | Cmi Incorporated | Infrared breath analyzer |
| US5422485A (en) * | 1993-07-09 | 1995-06-06 | Cmi, Inc. | Infrared breath analyzer with calibration provisions and related method |
| CN2641658Y (en) * | 2003-08-27 | 2004-09-15 | 深圳市威尔电器有限公司 | Alcohol detector with wireless printing function |
| CN100356162C (en) * | 2004-07-07 | 2007-12-19 | 深圳迈瑞生物医疗电子股份有限公司 | Method and apparatus for measuring gas concentration based on light source modulation |
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| CN102288574A (en) * | 2011-07-08 | 2011-12-21 | 华南理工大学 | Device and method for quantitatively analyzing concentration of multi-component oil fume |
| CN103543119A (en) * | 2012-07-12 | 2014-01-29 | 成都科盛石油科技有限公司 | Petroleum logging carbon dioxide detector capable of performing real-time communication |
| CN104019879A (en) * | 2014-05-27 | 2014-09-03 | 成都九洲电子信息系统股份有限公司 | Electronic scale capable of realizing wireless label printing |
| CN105180039A (en) * | 2015-09-10 | 2015-12-23 | 杜诚 | Healthy and intelligent education lighting device |
| CN105180039B (en) * | 2015-09-10 | 2018-07-13 | 杭州临安思迪科技有限公司 | A kind of health intelligentization education lighting device |
| CN105486653A (en) * | 2015-12-01 | 2016-04-13 | 昆明勤瑞科技有限公司 | Sulfur dioxide infrared detection device and method |
| WO2017107598A1 (en) * | 2015-12-26 | 2017-06-29 | 深圳市贝沃德克生物技术研究院有限公司 | Apparatus for detecting acetone in breaths of diabetes patient |
| CN105717063A (en) * | 2016-02-04 | 2016-06-29 | 杭州巨之灵科技有限公司 | Alcohol detecting device and method based on infrared spectroscopic analysis |
| CN105717064A (en) * | 2016-02-04 | 2016-06-29 | 杭州巨之灵科技有限公司 | Expiration alcohol tester and alcohol testing method |
| CN105738309A (en) * | 2016-02-04 | 2016-07-06 | 杭州巨之灵科技有限公司 | Methane detector and method |
| CN105717062A (en) * | 2016-02-04 | 2016-06-29 | 杭州巨之灵科技有限公司 | Infrared alcohol detection system |
| CN105699296A (en) * | 2016-02-04 | 2016-06-22 | 杭州巨之灵科技有限公司 | Alcohol detecting instrument and alcohol detecting method |
| CN107991445A (en) * | 2017-11-28 | 2018-05-04 | 江苏康缘药业股份有限公司 | The online test method of concentration of alcohol during a kind of Chinese medicine alcohol precipitation |
| CN109115716A (en) * | 2018-07-12 | 2019-01-01 | 镇江市爱威尔电子有限公司 | A kind of Multifunction infrared gas sensor |
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| CN101477043B (en) | 2011-11-16 |
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