CN109781274A - A kind of temperature-compensation method based on infrared temperature probe - Google Patents
A kind of temperature-compensation method based on infrared temperature probe Download PDFInfo
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Abstract
The present invention provides a kind of interference effect that can reduce environment temperature in infrared measurement of temperature, improves the temperature-compensation method of infrared temperature probe measurement accuracy.This method comprises: 1) detect environment temperature with thermistor, linear fit obtains thermistor output voltage U0With environment temperature T0Linear relation U0‑T0；2) to thermopile output voltage UaCalculation formula Ua=sk (Ta 4‑T0 4) converted, obtain Ta=T0+K0Ua；3) by linear relation U0‑T0Substitute into Ta=T0+K0UaObtain Ta‑U0‑Ua‑K0Relational expression；4) in environment temperature T0' under, with thermoelectric pile detect object temperature, linear fit thermopile output voltage UaWith object temperature TaLinear relation Ua‑Ta；5) by linear relation Ua‑TaWith Ta‑U0‑Ua‑K0Relational expression simultaneous obtains environment temperature T0' under K0‑U0‑UaRelational expression；6) by environment temperature T0' under thermal resistance output voltage U0' and thermopile output voltage Ua' substitute into K0‑U0‑UaRelational expression obtains K0Value；By K0Value substitutes into step 3) Ta‑U0‑Ua‑K0In relational expression, environment temperature T is obtained0' under Ta‑U0‑UaTemperature-compensating relational expression.
Description
Technical field
The present invention relates to temperature detection fields, more particularly to a kind of temperature-compensating side based on infrared temperature probe
Method.
Background technique
Following background technique is used to help reader and understands the present invention, and is not construed as the prior art.
Non-contact Infrared Temperature Measurement sensor is a kind of equipment that temperature is measured using infrared ray.Infrared temperature probe
What is measured is the temperature difference between object and environment, and working principle can be indicated with planck formula: E=sk (Ta 4-
T0 4), E is radiant exitance in formula；S is Stefan-Boltzmann constant；K is the radiance of object, TaIndicate object under test
Temperature, T0Indicate environment temperature.In actual measurement, often exposure in air, receives the probe of infrared temperature probe
Interference of the target irradiation energy level vulnerable to environment temperature, influence the precision of measurement.
Summary of the invention
The purpose of the present invention is to provide a kind of interference effects that can reduce environment temperature in infrared measurement of temperature, improve red
The temperature-compensation method based on infrared temperature probe of the measurement accuracy of outer temperature transducer.
A kind of temperature-compensation method based on infrared temperature probe, which is characterized in that the described method includes:
1) environment temperature is detected with the thermistor in infrared temperature probe, thermistor measures each time obtains temperature-sensitive
Resistance output voltage U0With the environment temperature T of thermistor detection0, with thermistor output voltage U0With environment temperature T0It builds
Vertical coordinate system the, by (U that measurement obtains each time0, T0) as a coordinate points under the coordinate system, all coordinate points are carried out
Linear fit obtains thermistor output voltage U0With environment temperature T0Linear relation U0-T0；
2) infrared temperature probe has the thermoelectric pile for detecting object temperature, to thermopile output voltage Ua's
Calculation formula Ua=sk (Ta 4-T0 4) converted, it obtains:
Wherein,
3) by the linear relation U of thermistor output voltage and environment temperature0-T0Substitute into the T of step 2)a=T0+K0Ua
In, obtain object temperature TaWith thermistor output voltage U0, thermopile output voltage UaAnd K0Relational expression；
4) in environment temperature T0' under, object temperature is detected with thermoelectric pile, it is defeated that thermoelectric pile measures acquisition thermoelectric pile each time
Voltage U outaWith the object temperature T of thermoelectric pile detectiona, with thermopile output voltage UaWith object temperature TaEstablish coordinate
System the, by (U that measurement obtains each timea, Ta) as a coordinate points under the coordinate system, all coordinate points are subjected to Linear Quasi
It closes, acquisition environment temperature is T0' under, thermopile output voltage UaWith object temperature TaLinear relation Ua-Ta；
5) by object temperature obtained in step 3) and thermistor output voltage, thermopile output voltage and K0Pass
It is environment temperature T obtained in formula and step 4)0' under, the linear relation U of thermopile output voltage and object temperaturea-Ta
Simultaneous obtains environment temperature T0' under K0With thermistor output voltage U0, thermopile output voltage UaRelational expression；
6) in environment temperature T0' under, thermal resistance output voltage U is obtained with thermal resistance measurement environment temperature0', surveyed with thermoelectric pile
Amount object temperature obtains thermopile output voltage Ua', by thermal resistance output voltage U0' and thermopile output voltage Ua' substitute into step
Rapid 5) K0With thermistor output voltage U0, thermopile output voltage UaRelational expression in, K is calculated0Value；By K0Value substitutes into step
It is rapid 3) in object temperature and thermistor output voltage, thermopile output voltage and K0Relational expression in, obtain environment temperature
T0' under compensation object temperature and thermistor output voltage, thermopile output voltage relational expression.Compensation object temperature refers to
Be object temperature after temperature-compensating.
Further, method further includes step 7): in environment temperature T0' under, environment temperature is once surveyed with thermal resistance
The thermal resistance output voltage U measure, obtained0', the thermoelectric pile output that one-shot measurement is carried out to object temperature with thermoelectric pile, is obtained
Voltage Ua', by thermal resistance output voltage U0' and thermopile output voltage Ua' substitute into step 6) compensation object temperature and temperature-sensitive
Resistance output voltage, thermopile output voltage relational expression in calculated, obtained compensation object temperature is as infrared survey
Measured value after temperature sensor is temperature compensated；Alternatively, being T in environment temperature0' under with infrared temperature probe carry out twice or
Repeatedly measurement, thermal resistance measurement environment temperature obtains a thermal resistance output voltage U in each measurement0', thermoelectric pile measure mesh
Mark object temperature obtains a thermopile output voltage Ua', by thermal resistance output voltage U0' and thermopile output voltage Ua' substitute into step
Rapid 6) compensation object temperature and thermistor output voltage, thermopile output voltage relational expression in calculated, obtain one
A compensation object temperature measures twice or repeatedly and is corresponding with two or more compensation object temperatures, takes two or more benefits
Repay measured value of the average value of object temperature as infrared temperature probe after temperature compensated.
Further, in environment temperature T0' under, thermal resistance takes multiple measurements environment temperature, it is defeated to obtain multiple thermal resistances
Voltage out, the thermal resistance output voltage U in step 6)0' take the average value of multiple thermal resistance output voltages.
Further, in environment temperature T0' under, thermoelectric pile takes multiple measurements object temperature, obtains multiple thermoelectric piles
Output voltage, the output voltage U of the thermoelectric pile in step 6)a' take the average value of multiple thermopile output voltages.
Further, after the thermistor output voltage in step 1) is 1000 times of thermistor actual measurement voltage amplification
Voltage value；Step 4) thermopile output voltage is the voltage value after 1000 times of thermoelectric pile actual measurement voltage amplification.It is original defeated
Voltage value is millivolt (mV) grade out, and the voltage value obtained after 1000 times of amplification is volt (V) grade, is controlled convenient for single-chip microcontroller.
Beneficial effects of the present invention: original method is substituted with temperature-compensation method, can reduce environment temperature to temperature
The interference effect of measurement improves the measurement accuracy of infrared temperature probe, makes the measurement error of infrared temperature probe less than 0.2
℃。
Detailed description of the invention
Fig. 1 be in one embodiment of the invention environment temperature be 25 DEG C at, infrared temperature probe thermopile output voltage
With the curve graph of object temperature.
Specific embodiment
The present invention is further described in detail combined with specific embodiments below.
Embodiment 1
In the present embodiment use MLX90614 infrared temperature probe, be integrated with low-noise amplifier, have -40 DEG C~+
At 0 DEG C~50 DEG C, precision is up to ± 0.5 DEG C for 85 DEG C of relatively wide-range, environment temperature and target temperature.
A kind of temperature-compensation method based on infrared temperature probe, comprising:
1) 20 DEG C~30 DEG C of environment temperature is detected with the thermistor in infrared temperature probe, thermistor is each time
Measurement obtains thermistor output voltage U0With the environment temperature T of thermistor detection0.Table 1 is the environment that thermistor is surveyed
The corresponding table of temperature and thermistor output voltage, thermistor resistance value.Thermistor output voltage U0It is to use low noise amplification
Device by thermistor actual output voltage amplify 1000 times after voltage value.
The corresponding table of the environment temperature that 1 thermistor of table is surveyed and thermistor output voltage, thermistor resistance value
| T0/℃ | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
| R0/KΩ | 123 | 120 | 114 | 109 | 106 | 100 | 96 | 93 | 88 | 83 | 79 |
| U0/V | 1.63 | 1.61 | 1.58 | 1.53 | 1.51 | 1.49 | 1.45 | 1.41 | 1.38 | 1.34 | 1.31 |
With thermistor output voltage U0With environment temperature T0Coordinate system is established, by (the U that measurement obtains each time0, T0)
As a coordinate points under the coordinate system, all coordinate points are subjected to linear fit, obtain thermistor output voltage U0With
Environment temperature T0Linear relation U0-T0:
U0=-0.034 (T0-68.5) (1)
2) infrared temperature probe has the thermoelectric pile for detecting object temperature, to thermopile output voltage Ua's
Calculation formula Ua=sk (Ta 4-T0 4) converted, it obtains:
Wherein,
3) relational expression (1) of thermistor output voltage and environment temperature is substituted into the T of step 2)a=T0+K0UaIn, it obtains
To object temperature TaWith thermistor output voltage U0, thermopile output voltage UaAnd K0Relational expression (Ta-U0-Ua-K0):
4) in the case where environment temperature is 25 DEG C, object temperature is detected with thermoelectric pile, thermoelectric pile measures each time obtains thermoelectricity
Heap output voltage UaWith the object temperature T of thermoelectric pile detectiona, Fig. 1 is the curve of thermopile output voltage and object temperature
Figure.Since this temperature compensation algorithm is for measuring human body temperature, the object temperature range chosen is that body temperature can
The temperature range reached.Table 2 is the correspondence table of the object temperature that thermoelectric pile is surveyed and thermopile output voltage.Thermoelectric pile output
Voltage is the voltage value after thermoelectric pile actual output voltage is amplified 1000 times with low-noise amplifier.
The correspondence table of object temperature and thermopile output voltage that 2 thermoelectric pile of table is surveyed
| Ta/℃ | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 |
| Ua/V | 0.85 | 0.91 | 1.01 | 1.09 | 1.17 | 1.25 | 1.32 | 1.42 |
With thermopile output voltage UaWith object temperature TaCoordinate system is established, by (the U that measurement obtains each timea, Ta)
As a coordinate points under the coordinate system, all coordinate points are subjected to linear fit, obtain environment temperature be at 25 DEG C, thermoelectricity
Heap output voltage UaWith environment temperature TaLinear relation Ua-Ta:
Ua=0.08Ta-1.95 (4)
5) by the object temperature obtained obtained in step 3) and thermistor output voltage, thermopile output voltage and
K0Relational expression (3) and step 4) obtained in obtained in environment temperature T0' under, thermopile output voltage and object temperature
Linear relation Ua-Ta(4) simultaneous, obtain environment temperature be 25 DEG C at, K0With thermistor output voltage U0, thermoelectric pile it is defeated
Voltage U outaRelational expression (K0-U0-Ua):
6) at 25 DEG C of environment temperature, thermal resistance output voltage U is obtained with thermal resistance measurement environment temperature0', use thermoelectric pile
Measurement object temperature obtains thermopile output voltage Ua', by thermal resistance output voltage U0'=1.49V and thermoelectric pile output electricity
Press Ua'=1.01V substitutes into step 5) K0With thermistor output voltage U0, thermopile output voltage UaRelational expression (5) in, meter
Calculation obtains K0=12.05.
By K0=12.05 substitute into step 3) object temperature and thermistor output voltage, thermopile output voltage and K0's
In relational expression (3), obtain compensating object temperature and thermistor output voltage, thermopile output voltage at 25 DEG C of environment temperature
Relational expression (Ta-U0-Ua):
Formula 6) it is temperature-compensating formula at 25 DEG C of environment temperature.Compensation object temperature refers to mending through excess temperature
Object temperature after repaying.
7) in the case where environment temperature is 25 DEG C, one-shot measurement is carried out to environment temperature with thermal resistance, obtained thermal resistance exports
Voltage U0', the thermopile output voltage U that one-shot measurement is carried out to object temperature with thermoelectric pile, is obtaineda', thermal resistance is exported
Voltage U0' and thermopile output voltage Ua' substitution step 6) compensates object temperature and thermistor output voltage, thermoelectric pile are defeated
Calculated in the relational expression of voltage out, obtained compensation object temperature as infrared temperature probe it is temperature compensated after
Measured value.In the present embodiment, by U0'=1.49V and Ua'=1.01V substitutes into formula (6), obtains compensation object temperature and is
36.85℃.With medical apparatus Omron infrared thermometer TH839S in same time, 37.0 DEG C of temperature works of same environment measurement
For reference temperature(TR).It can be seen that error amount is only 0.15 DEG C by after temperature-compensating.
It can be according to different environment temperatures, to the COEFFICIENT K in formula (3)0It is modified.Such as environment temperature is 20
DEG C: first acquisition environment temperature be 20 DEG C at, thermopile output voltage UaWith environment temperature TaLinear relation Ua=
0.123Ta-3.21.By Ua=0.123Ta- 3.21 withSimultaneous obtains K0It is defeated with thermistor
Voltage U out0, thermopile output voltage UaRelational expression.Then, by environment temperature be 20 DEG C when thermal resistance measure environment temperature obtain
The thermal resistance output voltage U arrived0' and the obtained thermopile output voltage U of thermoelectric pile measurement object temperaturea' substitute into the K0With
Thermistor output voltage U0, thermopile output voltage UaRelational expression, be calculated environment temperature be 20 DEG C at K0。
It is the K at 30 DEG C that environment temperature, which can be obtained, with same method0: acquisition environment temperature is heat at 30 DEG C first
The linear relation U of pile output voltage and object temperaturea=0.041Ta- 0.87, by Ua=0.041Ta- 0.87 withSimultaneous obtains K0With thermistor output voltage U0, thermopile output voltage UaRelationship
Formula.Then, when being 30 DEG C by environment temperature, thermal resistance measures the obtained thermal resistance output voltage U of environment temperature0' and thermoelectric pile
The thermopile output voltage U that measurement object temperature obtainsa' substitute into the K0With thermistor output voltage U0, thermoelectric pile output
Voltage UaRelational expression, be calculated environment temperature be 30 DEG C at K0。
Embodiment 2
The present embodiment is difference from example 1 is that step 7) is replaced are as follows: with infrared temperature probe to target
Object takes multiple measurements, and thermal resistance measurement environment temperature obtains a thermal resistance output voltage U in each measurement0', thermoelectric pile
Measurement object temperature obtains a thermopile output voltage Ua', by thermal resistance output voltage U0' and thermopile output voltage Ua’
Substitute into step 6) compensation object temperature and thermistor output voltage, thermopile output voltage relational expression in calculated,
Obtain a compensation object temperature, twice or repeatedly measurement is corresponding with two or more compensation object temperatures, take two or
Measured value of the average value of multiple compensation object temperatures as infrared temperature probe after temperature compensated.
It is big vast in the present embodiment, respectively in the case where environment temperature is 20 DEG C, 25 DEG C and 30 DEG C, carried out with infrared temperature probe
It measures three times.
With the cochlea temperature of MLX90614 infrared temperature probe measurement experiment person.Will be added temperature-compensation method before,
The object temperature T that MLX90614 infrared temperature probe measures three timesa 1Average value measured value as a comparison；Temperature is added to mend
After compensation method, the compensation object temperature T that MLX90614 infrared temperature probe measures three timesa 2Average value as measurement
Value.In addition, the present embodiment also uses medical apparatus Omron infrared thermometer TH839S in same time, same environment measurement
Experimenter cochlea temperature T ', takes the average value of the T ' measured three times as standard reference temperature(TR).It is added before temperature-compensation method,
Existing method is just with analog quantity formula E=sk (Ta 4-T0 4) measure and simulation output.Temperature-compensation method is added
The object temperature of the infrared temperature probe measurement of front and back is listed in table 3.
The object temperature contrast table of the infrared temperature probe measurement before and after temperature-compensation method is added in table 3
From the test result of table 3 it is found that using temperature-compensation method and the average value of multiple compensation object temperatures is taken to make
For measured value, the error maximum of MLX90614 infrared temperature probe measured temperature and standard reference temperature(TR) is within 0.2 DEG C；And
The instrument of temperature-compensation method is not used, MLX90614 infrared temperature probe and the worst error of standard reference temperature(TR) reach
0.4 DEG C, in the standard of medical body temperature measurement, belong to the range of large error.
Embodiment 3
The present embodiment is difference from example 1 is that thermal resistance output voltage U in step 6)0' and thermoelectric pile is defeated
Voltage U outa' value mode it is different.It is defeated to carry out one-shot measurement, the thermal resistance of acquisition to environment temperature for thermal resistance in embodiment 1
Voltage is as thermal resistance output voltage U out0'；Thermoelectric pile carries out one-shot measurement to object temperature, the thermoelectric pile of acquisition exports electricity
Pressure is as hot spot to output voltage Ua'.And in the present embodiment, in environment temperature T0' under, thermal resistance carries out environment temperature multiple
It measures, obtain multiple thermal resistance output voltages, thermal resistance output voltage U0' take the average value of multiple thermal resistance output voltages；Heat
Pile takes multiple measurements object temperature, obtains multiple thermopile output voltages, the output voltage U of thermoelectric pilea' take it is multiple
The average value of thermopile output voltage.
In the present embodiment, when environment temperature is 20 DEG C, thermal resistance output voltage U0' take multiple thermal resistances in table 3 defeated
The average value of voltage, thermopile output voltage U outa' take the average value of multiple thermopile output voltages in table 3, U0'=1.646,
Ua'=0.1.326.K is calculated0=12.65.In the present embodiment, environment temperature be 20 DEG C when, temperature-compensating formula are as follows:
When environment temperature is 25 DEG C, thermal resistance output voltage U0' take being averaged for multiple thermal resistance output voltages in table 3
Value, thermopile output voltage Ua' take the average value of multiple thermopile output voltages in table 3, U0'=1.490, Ua'=0.983.
K is calculated0=12.19.In the present embodiment, environment temperature be 25 DEG C when, temperature-compensating formula are as follows:
When environment temperature is 30 DEG C, thermal resistance output voltage U0' take being averaged for multiple thermal resistance output voltages in table 3
Value, thermopile output voltage Ua' take the average value of multiple thermopile output voltages in table 3, U0'=1.318, Ua'=0.660.
K is calculated0=11.49.In the present embodiment, environment temperature be 30 DEG C when, temperature-compensating formula are as follows:
Table 4 shows the K at a temperature of varying environment0Value.
K at 20 DEG C, 25 DEG C and 30 DEG C of 4 environment temperature of table0Value
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Range should not be construed as being limited to the specific forms stated in the embodiments, and protection scope of the present invention is also and in art technology
Personnel conceive according to the present invention it is conceivable that equivalent technologies mean.
Claims (5)
1. a kind of temperature-compensation method based on infrared temperature probe, which is characterized in that the described method includes:
1) environment temperature is detected with the thermistor in infrared temperature probe, thermistor measures each time obtains thermistor
Output voltage U0With the environment temperature T of thermistor detection0, with thermistor output voltage U0With environment temperature T0It establishes and sits
Mark system the, by (U that measurement obtains each time0, T0) as a coordinate points under the coordinate system, all coordinate points are carried out linear
Fitting obtains thermistor output voltage U0With environment temperature T0Linear relation U0-T0；
2) infrared temperature probe has the thermoelectric pile for detecting object temperature, to thermopile output voltage UaCalculating it is public
Formula Ua=sk (Ta 4-T0 4) converted, it obtains:
Wherein,
3) by the linear relation U of thermistor output voltage and environment temperature0-T0Substitute into the T of step 2)A=T0+K0UaIn, it obtains
To object temperature TaWith thermistor output voltage U0, thermopile output voltage UaAnd K0Relational expression；
4) in environment temperature T0' under, object temperature is detected with thermoelectric pile, thermoelectric pile measures each time obtains thermoelectric pile output electricity
Press UaWith the object temperature T of thermoelectric pile detectiona, with thermopile output voltage UaWith object temperature TaCoordinate system is established, it will
(the U that measurement obtains each timea, Ta) as a coordinate points under the coordinate system, all coordinate points are subjected to linear fit, are obtained
Obtaining environment temperature is T0' under, thermopile output voltage UaWith object temperature TaLinear relation Ua-Ta；
5) by object temperature obtained in step 3) and thermistor output voltage, thermopile output voltage and K0Relational expression
With environment temperature T obtained in step 4)0' under, the linear relation U of thermopile output voltage and object temperaturea-TaSimultaneous,
Obtain environment temperature T0' under K0With thermistor output voltage U0, thermopile output voltage UaRelational expression；
6) in environment temperature T0' under, thermal resistance output voltage U is obtained with thermal resistance measurement environment temperature0', with thermoelectric pile measure mesh
Mark object temperature obtains thermopile output voltage Ua', by thermal resistance output voltage U0' and thermopile output voltage Ua' substitute into step 5)
K0With thermistor output voltage U0, thermopile output voltage UaRelational expression in, K is calculated0Value；By K0Value substitutes into step 3)
Middle object temperature and thermistor output voltage, thermopile output voltage and K0Relational expression in, obtain environment temperature T0' under
Compensate the relational expression of object temperature and thermistor output voltage, thermopile output voltage.
2. as described in claim 1 based on the temperature-compensation method of infrared temperature probe, which is characterized in that this method is also wrapped
Include step 7): in environment temperature T0' under, one-shot measurement is carried out to environment temperature with thermal resistance, is obtained thermal resistance output voltage
U0', the thermopile output voltage U that one-shot measurement is carried out to object temperature with thermoelectric pile, is obtaineda', by thermal resistance output voltage
U0' and thermopile output voltage Ua' substitute into step 6) compensation object temperature and thermistor output voltage, thermoelectric pile output electricity
It is calculated in the relational expression of pressure, measurement of the obtained compensation object temperature as infrared temperature probe after temperature compensated
Value；Alternatively, being T in environment temperature0' under measure twice or repeatedly with infrared temperature probe, the thermoelectricity in each measurement
Resistance measurement environment temperature obtains a thermal resistance output voltage U0', to obtain a thermoelectric pile defeated for thermoelectric pile measurement object temperature
Voltage U outa', by thermal resistance output voltage U0' and thermopile output voltage Ua' substitute into step 6) compensation object temperature and temperature-sensitive
Resistance output voltage, thermopile output voltage relational expression in calculated, obtain a compensation object temperature, it is twice or more
Secondary measurement is corresponding with two or more compensation object temperatures, takes the average value of two or more compensation object temperatures as red
Measured value after outer temperature transducer is temperature compensated.
3. as described in claim 1 based on the temperature-compensation method of infrared temperature probe, it is characterised in that: in environment temperature
T0' under, thermal resistance takes multiple measurements environment temperature, obtains multiple thermal resistance output voltages, and the thermal resistance in step 6) is defeated
Voltage U out0' take the average value of multiple thermal resistance output voltages.
4. the temperature-compensation method as claimed in claim 1 or 3 based on infrared temperature probe, it is characterised in that: in environment
Temperature T0' under, thermoelectric pile takes multiple measurements object temperature, obtains multiple thermopile output voltages, the heat in step 6)
The output voltage U of pilea' take the average value of multiple thermopile output voltages.
5. as described in claim 1 based on the temperature-compensation method of infrared temperature probe, it is characterised in that: in step 1)
Thermistor output voltage is the voltage value after 1000 times of thermistor actual measurement voltage amplification；Step 4) thermoelectric pile output electricity
Pressure is the voltage value after 1000 times of thermoelectric pile actual measurement voltage amplification.
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| CN112013968A (en) * | 2019-05-30 | 2020-12-01 | 迈来芯科技有限公司 | Temperature measuring device and method for measuring temperature |
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| CN111351582B (en) * | 2020-04-28 | 2021-10-08 | 深圳市太美亚电子科技有限公司 | Non-contact human body accurate temperature measurement method and temperature measurement device |
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| CN111579096A (en) * | 2020-05-07 | 2020-08-25 | 深圳市微电元科技有限公司 | Infrared temperature measurement sensor module, temperature measurement method and temperature measurement equipment |
| CN111721422A (en) * | 2020-06-18 | 2020-09-29 | 辽东学院 | Infrared human body temperature measurement correction method |
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| CN112155521A (en) * | 2020-09-24 | 2021-01-01 | 中国第一汽车股份有限公司 | Body temperature management system for vehicle and vehicle |
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| CN113252185A (en) * | 2021-04-07 | 2021-08-13 | 广州市倍尔康医疗器械有限公司 | Temperature measuring method and system of infrared thermometer and storage medium |
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