CN111562360A - Temperature compensation alcohol detection method and alcohol detection instrument - Google Patents
Temperature compensation alcohol detection method and alcohol detection instrument Download PDFInfo
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- CN111562360A CN111562360A CN202010279625.1A CN202010279625A CN111562360A CN 111562360 A CN111562360 A CN 111562360A CN 202010279625 A CN202010279625 A CN 202010279625A CN 111562360 A CN111562360 A CN 111562360A
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- 238000001514 detection method Methods 0.000 title claims abstract description 82
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 238000004364 calculation method Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000012360 testing method Methods 0.000 claims description 7
- 238000013215 result calculation Methods 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 125000003158 alcohol group Chemical group 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/497—Physical analysis of biological material of gaseous biological material, e.g. breath
- G01N33/4972—Determining alcohol content
Abstract
The invention relates to the technical field of gas alcohol content detection, and provides a temperature compensation alcohol detection method and an alcohol detection instrument. The temperature compensation alcohol detection method comprises the following steps: obtaining a reference temperature integral value and a current temperature integral value through integral calculation; calculating a temperature factor by using the reference temperature integral value and the current temperature integral value; calculating a reference temperature value according to the calibration value and a calibration constant set by the used alcohol detection instrument; and calculating a current temperature correction result according to the temperature factor and the reference temperature value. According to the temperature compensation alcohol detection method and the alcohol detection instrument, the influence of the current temperature on the detection is corrected in the alcohol detection calculation process, the influence of the ambient temperature on the alcohol detection result is reduced, and the accuracy of the alcohol detection result is improved.
Description
Technical Field
The invention relates to the technical field of gas alcohol content detection, in particular to a temperature compensation alcohol detection method and an alcohol detection instrument.
Background
In the prior art, the detection results obtained by the alcohol detector in the low-temperature environment and the high-temperature environment are greatly different, the alcohol content in the alcohol detector is mainly tested by breathing or inserting into liquid at present, but the test in the low-temperature environment and the high-temperature environment is inaccurate due to the influence of temperature. Due to the physical characteristics of alcohol, the alcohol content is easily affected by temperature, so that the test result is not accurate enough.
Disclosure of Invention
The invention provides a temperature compensation alcohol detection method and an alcohol detection instrument, and aims to reduce the influence of ambient temperature on a detection result and improve the accuracy of the result of alcohol detection in the alcohol detection process.
In order to achieve the above object, the present invention provides a temperature compensated alcohol detection method, comprising:
step S10: obtaining a reference temperature integral value and a current temperature integral value through integral calculation;
step S20: calculating a temperature factor by using the reference temperature integral value and the current temperature integral value; the calculation formula of the temperature factor is as follows:
Am＝A07/A05
wherein A ismIs a temperature factor, m represents the current temperature, a07 is the current temperature integral value, a05 is the reference integral value;
step S30: calculating a reference temperature value according to the calibration value and a calibration constant set by the used alcohol detection instrument; the calculation formula of the reference temperature value is as follows:
wherein R is0Is a reference temperature value, a10 is a calibration constant, a09 is a calibration value;
step S40: calculating a current temperature correction result according to the temperature factor and the reference temperature value, wherein the current temperature correction result calculation formula is as follows:
Cm＝Am*R0
wherein, CmIs the correction result of the current temperature, and m represents the current temperature.
Further, the integral calculation formula of the reference temperature integral value is as follows:
where A05 is a reference temperature integral value, t is a detection time, and VtTo be at a reference temperature T0The time base is based on the voltage value of the detection time t.
Further, the current temperature integral value is calculated by the formula:
where A07 is the current temperature integral value, t is the detection time, VtIs at the current temperature TmThe time base is based on the voltage value of the detection time t.
Further, the calibration constant is preset based on the detection instrument.
Further, the calibration value is a reference integral value of a preset time, and the calculation formula is as follows:
wherein A09 is a calibration value, t' is a preset time, Vt′To be at a reference temperature T0The time base is based on the voltage value of the preset time t'.
Further, the preset time t' is 1-10 seconds.
Further, the alcohol detection result is a current temperature correction result, and the current temperature correction result is a temperature compensation result calculated by the temperature factor and the reference temperature value.
Further, the reference temperature is 19 to 25 degrees.
Meanwhile, the invention provides an alcohol detection instrument, which comprises the temperature compensation alcohol detection method.
Compared with the prior art, the temperature compensation alcohol detection method and the alcohol detection instrument provided by the invention have the advantages that the influence of the current temperature on the detection is corrected in the alcohol detection calculation process, the influence of the environmental temperature on the alcohol detection result is reduced, and the accuracy of the alcohol detection result is improved.
Drawings
Fig. 1 is a schematic flow chart of a temperature compensated alcohol detection method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a method for detecting alcohol with temperature compensation, the method comprising:
step S10: obtaining a reference temperature integral value and a current temperature integral value through integral calculation; the reference temperature refers to the optimal detection temperature for alcohol detection, and in the embodiment provided by the invention, the reference temperature is 19-25 ℃, and the result of alcohol detection is taken as the reference value.
The integral calculation formula of the reference temperature integral value is as follows:
where A05 is a reference temperature integral value, t is a detection time, and VtTo be at a reference temperature T0The time base is based on the voltage value of the detection time t.
The second formula of the current temperature integral value calculation formula is as follows:
where A07 is the current temperature integral value, t is the detection time, VtIs at the current temperature TmThe time base is based on the voltage value of the detection time t.
Step S20: calculating a temperature factor by using the reference temperature integral value and the current temperature integral value; the third formula of the calculation formula of the temperature factor is as follows:
Am＝A07/A05
wherein A ismIs a temperature factor, m represents the current temperature, a07 is the current temperature integrated value, and a05 is the reference integrated value.
Step S30: calculating a reference temperature value according to the calibration value and a calibration constant set by the used alcohol detection instrument; the fourth formula of the calculation formula of the reference temperature value is as follows:
wherein R is0Is a reference temperature value, a10 is a calibration constant, a09 is a calibration value; the calibration constant is preset based on the detection instrument.
The calibration value is a reference integral value of a preset time, and the calculation formula of the calibration value is as follows:
wherein A09 is a calibration value, t' is a preset time, Vt′To be at a reference temperature T0A voltage value based on a preset time t'; the preset time t' is 1-10 seconds; specifically, in one embodiment, the preset time t' is 2.9 seconds.
Step S40: calculating a current temperature correction result according to the temperature factor and the reference temperature compensation value, wherein a sixth formula of a current temperature correction result calculation formula is as follows:
Cm＝Am*R0
wherein, CmIs the correction result of the current temperature, and m represents the current temperature.
Specifically, in an embodiment of the present invention, the reference temperature is set to be 19 to 25 degrees, the detection time t is 4 seconds, the integrated value a05 of the reference temperature is calculated to be 43791472 by integration, and the integrated value a07 of the current temperature is set to be 48433368 when the current temperature is set to be-1 degree;
then the temperature factor for the current temperature is calculated using a third formula as:
specifically, in an embodiment of the present invention, the calibration constant a10 has a value as follows: a10 ═ 454.
The fifth formula is used to calculate the reference integral value of the preset time, i.e. the calibration value a09, specifically the preset time is 1-10 seconds, specifically in one embodiment 2.9 seconds as the preset time, and then the fifth formula is used to calculate the calibration value a09 as: a09 ═ 595712.
Then the reference temperature value is calculated using a fourth formula as:
calculating the current temperature correction result as:
C-1＝A-1*R0＝0.3337*1.106＝0.3690
the alcohol detection result is a current temperature correction result, the current temperature correction result is a temperature compensation result calculated by the temperature factor and the reference temperature value, namely when the current temperature is-1 ℃, the detection result is corrected by using the temperature factor 1.106, and the obtained current temperature correction result is an alcohol detection result of the current temperature, namely 0.3690mg/L, wherein mg/L represents mg/L.
Specifically, in an embodiment, the calculated result of the corresponding calculation between the current temperature and the temperature factor is shown in table 1:
table 1:
in the actual alcohol detection process, the temperature factor corresponding to the current temperature is inquired in the table 1 according to the current temperature, and the detection result can be quickly corrected. Since 19-25 degrees is the reference temperature, i.e., the temperature factor at 19-25 degrees is close to 1, at other temperatures, the product of the alcohol detection value at each temperature and the corresponding temperature factor is the corrected alcohol detection value, which corresponds to the alcohol content at 19-25 degrees, i.e., each temperature detection value is compensated by temperature to the alcohol content value at 19-25 degrees. Specifically, in the above embodiment, for example, it is required to test the alcohol content at the current temperature of 30 degrees, and it can be known from the lookup table 1 that the temperature factor corresponding to 30 degrees is 1.011, and it can be known from calculation that the reference temperature value is 0.3337, and then the correction result of the current temperature of 30 degrees is 1.011 × 0.3337 — 0.3374. Therefore, the temperature compensation alcohol detection method can reduce the influence of the ambient temperature on the alcohol detection result and improve the accuracy of the alcohol detection result.
Meanwhile, the invention provides an alcohol detection instrument, which comprises the temperature compensation alcohol detection method.
Compared with the prior art, the temperature compensation alcohol detection method and the alcohol detection instrument provided by the invention have the advantages that the influence of the current temperature on the detection is corrected in the alcohol detection calculation process, the influence of the environmental temperature on the alcohol detection result is reduced, and the accuracy of the alcohol detection result is improved.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (9)
1. A method of temperature compensated alcohol detection, the method comprising:
step S10: obtaining a reference temperature integral value and a current temperature integral value through integral calculation;
step S20: calculating a temperature factor by using the reference temperature integral value and the current temperature integral value; the calculation formula of the temperature factor is as follows:
Am＝A07/A05
wherein A ismIs a temperature factor, m represents the current temperature, a07 is the current temperature integral value, a05 is the reference integral value;
step S30: calculating a reference temperature value according to the calibration value and a calibration constant set by the used alcohol detection instrument; the calculation formula of the reference temperature value is as follows:
wherein R is0Is a reference temperature value, a10 is a calibration constant, a09 is a calibration value;
step S40: calculating a current temperature correction result according to the temperature factor and the reference temperature value, wherein the current temperature correction result calculation formula is as follows:
Cm＝Am*R0
wherein, CmIs the correction result of the current temperature, and m represents the current temperature.
2. The temperature-compensated alcohol detection method according to claim 1, wherein the integral calculation formula of the reference temperature integration value is:
where A05 is a reference temperature integral value, t is a detection time, and VtTo be at a reference temperature T0The time base is based on the voltage value of the detection time t.
3. The temperature-compensated alcohol detection method according to claim 1, wherein the current temperature integral value calculation formula is:
where A07 is the current temperature integral value, t is the detection time, VtIs at the current temperature TmThe time base is based on the voltage value of the detection time t.
4. The temperature compensated alcohol testing method of claim 1, wherein the calibration constant is preset based on a testing instrument.
5. The temperature-compensated alcohol detection method according to claim 1, wherein the calibration value is a reference integral value of a preset time, which is calculated by the formula:
wherein A09 is a calibration value, t' is a preset time, Vt′To be at a reference temperature T0The time base is based on the voltage value of the preset time t'.
6. The method according to claim 5, wherein the predetermined time t' is 1-10 seconds.
7. The temperature-compensated alcohol detection method according to claim 1, wherein the alcohol detection result is a current temperature correction result, and the current temperature correction result is a temperature compensation result calculated by the temperature factor and the reference temperature value.
8. The temperature compensated alcohol detection method of claim 1, wherein the reference temperature is 19-25 degrees.
9. An alcohol testing apparatus comprising the temperature compensated alcohol testing method of any one of claims 1-8.
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