CN106289563A - Temperature checking method, system and device - Google Patents
Temperature checking method, system and device Download PDFInfo
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- CN106289563A CN106289563A CN201610575550.5A CN201610575550A CN106289563A CN 106289563 A CN106289563 A CN 106289563A CN 201610575550 A CN201610575550 A CN 201610575550A CN 106289563 A CN106289563 A CN 106289563A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
Abstract
The present invention relates to a kind of temperature checking method, system and device, the method includes obtaining the induced signal of the temperature sensor of various location in preallocated detection group, the detection temperature of each temperature sensor is obtained respectively according to induced signal, the detection temperature of each temperature sensor in preset ratio coefficient according to preallocated detection group and preallocated detection group, obtain the preliminary survey ambient temperature that preallocated detection group is corresponding, obtain according to preliminary survey ambient temperature and survey ambient temperature eventually.After considering that the detection temperature of various location temperature sensor obtains preliminary survey ambient temperature by packet, consider the preliminary survey ambient temperature of each group again to obtain surveying ambient temperature eventually, can suitably eliminate external disturbance (such as cooling heat source) to thermometric impact, reducing the measured value of temperature and the error of actual environment temperature, accuracy of measurement is high.
Description
Technical field
The present invention relates to data acquisition technology field, particularly relate to a kind of temperature checking method, system and device.
Background technology
Temperature measurer typically requires measurement ambient temperature, and such as, infrared thermometer is measured the principle of human body temperature and is: measure people
Surface temperature；Measure human body place ambient temperature；It is calculated people according to human body place ambient temperature and human surface temperature
Body body temperature.
Generally, traditional temperature measurer uses a critesistor to connect single-chip microcomputer, and critesistor is with ambient temperature
Changing and change, single-chip microcomputer can detect the ambient temperature drawing correspondence according to the change in resistance of critesistor.But, work as thermometric
Instrument is internal uses that device is more, power consumption relatively big (such as comprise 4G module, image first-class heater element) time, device dispels the heat because of power consumption
The change in resistance of critesistor can be produced interference, the ambient temperature that single chip computer measurement obtains is inaccurate.
Summary of the invention
Based on this, it is necessary to for the problems referred to above, it is provided that temperature checking method, system and the dress that a kind of accuracy of measurement is high
Put.
A kind of temperature checking method, including:
Obtain the induced signal of the temperature sensor of various location in preallocated detection group, described preallocated detection
Group includes at least two temperature sensor；
The detection temperature of each temperature sensor is obtained respectively according to described induced signal；
Each temperature sensing in preset ratio coefficient according to described preallocated detection group and described preallocated detection group
The detection temperature of device, obtains the preliminary survey ambient temperature that described preallocated detection group is corresponding；
Obtain according to described preliminary survey ambient temperature and survey ambient temperature eventually.
A kind of system for detecting temperature, including:
Induced signal acquisition module, for obtaining the sensing of the temperature sensor of various location in preallocated detection group
Signal, described preallocated detection group includes at least two temperature sensor；
Detection temperature acquisition module, for obtaining the detection temperature of each temperature sensor respectively according to described induced signal；
Preliminary survey ambient temperature acquisition module, for according to the preset ratio coefficient of described preallocated detection group and described pre-
In the detection group of distribution, the detection temperature of each temperature sensor, obtains the preliminary survey environment temperature that described preallocated detection group is corresponding
Degree；
Survey ambient temperature acquisition module eventually, survey ambient temperature eventually for obtaining according to described preliminary survey ambient temperature.
Said temperature detection method and system, by obtaining the temperature sensor of various location in preallocated detection group
Induced signal, obtain the detection temperature of each temperature sensor respectively according to induced signal；Then in units of group, according to pre-point
In the preset ratio coefficient of the detection group joined and preallocated detection group, the detection temperature of each temperature sensor, obtains preallocated
The preliminary survey ambient temperature that detection group is corresponding；Obtain finally according to the preliminary survey ambient temperature of each group and survey ambient temperature eventually.By packet
After considering the detection temperature of various location temperature sensor, then the preliminary survey ambient temperature considering each group obtains surveying environment eventually
Temperature, can suitably eliminate external disturbance (such as cooling heat source) to thermometric impact, the measured value of reduction temperature and reality
The error of border ambient temperature, accuracy of measurement is high.
A kind of temperature-detecting device, is positioned at the temperature sensor of various location including processor and at least two, described
Temperature sensor connects described processor；
The ambient temperature of described temperature sensor senses position also exports induced signal to described processor, described place
Reason device obtains the induced signal of temperature sensor in preallocated detection group, obtains each temperature respectively according to described induced signal and passes
The detection temperature of sensor, according to each temperature in the preset ratio coefficient of described preallocated detection group and described preallocated detection group
The detection temperature of degree sensor, obtains the preliminary survey ambient temperature that described preallocated detection group is corresponding, and according to described preliminary survey ring
Border temperature obtains surveys ambient temperature eventually, and wherein, preallocated detection group includes at least two temperature sensor.
Said temperature detection device, by using the temperature sensor output induced signal of multiple various locations to processing
Device, processor obtains the detection temperature of each temperature sensor respectively according to induced signal；Then in units of group, according to predistribution
The preset ratio coefficient of detection group and preallocated detection group in the detection temperature of each temperature sensor, obtain preallocated inspection
The preliminary survey ambient temperature that survey group is corresponding；Obtain finally according to the preliminary survey ambient temperature of each group and survey ambient temperature eventually.Examined by packet
After considering the detection temperature of various location temperature sensor, then the preliminary survey ambient temperature considering each group obtains surveying environment temperature eventually
Degree, can suitably eliminate external disturbance (such as cooling heat source) to thermometric impact, the measured value of reduction temperature and reality
The error of ambient temperature, accuracy of measurement is high.
Accompanying drawing explanation
Fig. 1 is the flow chart of temperature checking method in an embodiment；
Fig. 2 is the detection temperature curve chart with actual environment temperature of each temperature sensor in an embodiment；
Fig. 3 is each temperature in preset ratio coefficient according to preallocated detection group and preallocated detection group in an embodiment
The detection temperature of degree sensor, obtains the particular flow sheet of preliminary survey ambient temperature corresponding to preallocated detection group；
Fig. 4 is the module map of system for detecting temperature in an embodiment；
Fig. 5 is the unit figure of preliminary survey ambient temperature acquisition module in an embodiment；
Fig. 6 is the structured flowchart of temperature-detecting device in an embodiment；
Fig. 7 is the structure chart of the infrared thermometer applying temperature-detecting device in an embodiment.
Detailed description of the invention
With reference to Fig. 1, the temperature checking method in an embodiment, comprise the steps.
S110: obtain the induced signal of the temperature sensor of various location in preallocated detection group.
Wherein, preallocated detection group includes at least two temperature sensor.Temperature sensor is used for experiencing position
Ambient temperature and be converted into induced signal, such as induced signal is voltage signal or current signal, and temperature sensor can be
Critesistor.The quantity of detection group can be one, it is also possible to for multiple.Multiple temperature sensors are allocated according to rule in advance
For at least one detection group.
S130: obtain the detection temperature of each temperature sensor according to induced signal respectively.
, there is same thermal source when multiple temperature sensors are in the corresponding detection temperature of each temperature sensor
During environment, owing to there being thermal source to affect, detection temperature corresponding to each temperature sensor may differ, and distance thermal source is the nearest, obtains
Detection temperature the highest.By obtaining the detection temperature of corresponding each temperature sensor according to induced signal, each temperature can be obtained
The ambient temperature of the position that sensor detection obtains.Specifically, when temperature sensor is critesistor, step S130 root
Obtain the resistance of critesistor according to induced signal, and obtain detection temperature according to resistance.
With reference to Fig. 2, being the detection temperature and the curve chart of actual environment temperature obtained in an embodiment, wherein S1 represents the
The detection temperature that one temperature sensor is corresponding, S2 represents the detection temperature that second temperature sensor is corresponding, and S3 represents actual
Ambient temperature.
S150: according to each temperature sensor in the preset ratio coefficient of preallocated detection group and preallocated detection group
Detection temperature, obtains the preliminary survey ambient temperature that preallocated detection group is corresponding.
Preset ratio coefficient can obtain in advance, and each detection group is to there being a preset ratio coefficient.When detection group
Quantity when being multiple, step S150 can obtain the preliminary survey ambient temperature of each detection group.By considering various location
The detection temperature of the first temperature sensor, the detection temperature of the second temperature sensor and preset ratio coefficient calculations obtain same inspection
The preliminary survey ambient temperature of survey group, can suitably eliminate the heat radiation of thermal source to thermometric impact, accuracy in detection height.
In one embodiment, preallocated detection group includes the first temperature sensor and the second temperature sensor, i.e. one group
Detection group includes two temperature sensors.In the present embodiment, with reference to Fig. 3, step S150 includes:
S151: calculate the detection temperature of the first temperature sensor and the inspection of the second temperature sensor in preallocated detection group
The difference of testing temperature obtains detecting difference.
Wherein, the detection temperature of the first temperature sensor is more than the detection temperature of the second temperature sensor.Temperature sensor
The far and near difference of distance thermal source, the detection temperature obtained is the most different, in the present embodiment, the first temperature sensor and the distance of thermal source
Value is more than the distance value of the second temperature sensor with thermal source.By being calculated detection difference, can be detected in group two
The detection error of temperature sensor.
S152: obtain positively related with detection difference according to the preset ratio coefficient of detection difference and preallocated detection group
Reference value.
In the present embodiment, step S152 is: the ratio calculating detection difference and preset ratio coefficient is worth to reference value.
S153: calculate the detection temperature of the second temperature sensor and the difference of reference value right as preallocated detection group
The preliminary survey ambient temperature answered.
Owing to the structure of each temperature sensor and thermal source is fixed, heat transfer state is essentially identical, different temperature rise, diverse locations
Ambient temperature and the ratio of the formed thermal gradient of actual environment temperature that the temperature sensor detection at place obtains are essentially identical.Cause
This, by step S151 to step S153, according to detection temperature and the ratio thereof of the temperature sensor apart from thermal source diverse location
Relation is calculated original ambient temperature, can suitably eliminate the impact on temperature detection of dispelling the heat of thermal source, and accuracy is high.
In the present embodiment, step S150 particularly as follows:
T0=T1-(T2-T1)/K；
Wherein, T1It is the detection temperature of the second temperature sensor, T2Being the detection temperature of the first temperature sensor, K is default
Proportionality coefficient, T0For preliminary survey ambient temperature.
Being appreciated that in other embodiments, it is also possible to using 1/K as preset ratio coefficient, now, step S152 is:
The product calculating detection difference and preset ratio coefficient obtains reference value.
Preallocated detection group can also include plural temperature sensor.At this point it is possible to by same detection group
In multiple temperature sensor combination of two obtain the junior unit of two temperature sensors composition, by junior unit close to thermal source
Temperature sensor as the first temperature sensor, another is as the second temperature sensor, then to each junior unit according to
The method identical with step S151 is calculated after detecting difference, then calculates the meansigma methods of the detection difference of each junior unit, makees
Detection difference for this group detection group；Reference value is tried to achieve according to the method identical with step S152；According to identical with step S153
Method, average try to achieve the preliminary survey ambient temperature of junior unit according to the second temperature sensor in each junior unit after, will
The meansigma methods of the preliminary survey ambient temperature of each junior unit tried to achieve is as the preliminary survey ambient temperature of this group detection group.
S170: obtain according to preliminary survey ambient temperature and survey ambient temperature eventually.
In one embodiment, the quantity of preallocated detection group is multiple, and step S170 includes: calculate multiple preliminary survey environment
The meansigma methods of temperature, and using meansigma methods as surveying ambient temperature eventually.When there being multiple preliminary survey ambient temperature, surveying ambient temperature eventually is
The meansigma methods of multiple preliminary survey ambient temperatures；When only one of which preliminary survey ambient temperature, survey ambient temperature and preliminary survey ambient temperature eventually
Equal.Obtain surveying ambient temperature eventually by calculating meansigma methods, can reduce further and survey ambient temperature and actual environment temperature eventually
Deviation, improve accuracy of measurement further.Being appreciated that in other embodiments, step S170 can also use other to count
Calculation mode is averaging and obtains surveying ambient temperature, such as, after removing a minima and maximum in multiple preliminary survey ambient temperatures eventually
Seek the meansigma methods of remaining preliminary survey ambient temperature.
Said temperature detection method, by obtaining the sensing of the temperature sensor of various location in preallocated detection group
Signal, obtains the detection temperature of each temperature sensor respectively according to induced signal；Then in units of group, according to preallocated inspection
In the preset ratio coefficient of survey group and preallocated detection group, the detection temperature of each temperature sensor, obtains preallocated detection group
Corresponding preliminary survey ambient temperature；Obtain finally according to the preliminary survey ambient temperature of each group and survey ambient temperature eventually.Considered not by packet
After the detection temperature of temperature sensor at co-located obtains preliminary survey ambient temperature, then the preliminary survey ambient temperature considering each group obtains
To surveying eventually ambient temperature, can suitably eliminate external disturbance (such as cooling heat source) to thermometric impact, reduce temperature
Measured value and the error of actual environment temperature, accuracy of measurement is high.
In one embodiment, before step S110, further comprise the steps of: the distance value obtaining each temperature sensor with thermal source, from
Multiple distance values choose lowest distance value, and by temperature sensor corresponding for lowest distance value respectively with other temperature sensors
A component is joined and is obtained preallocated detection group two-by-two.
Such as, the number of temperature sensor is 4, and first temperature sensor distance thermal source is nearest, then predistribution obtains
Detection group be 3 groups, be respectively as follows: first temperature sensor and second temperature sensor, first temperature sensor and
Three temperature sensors, first temperature sensor and the 4th temperature sensor.Wherein, thermal source refers to distribute heat, do
Disturb the device of ambient temperature detection.It is appreciated that in other embodiments, it is also possible to adopt and carry out temperature sensor in other ways
Distribution obtain detection group, such as, according to the distance value sequence of temperature sensor with thermal source, by corresponding for former and later two distance values
Temperature sensor is assigned as one group.
By in advance temperature sensor being tested, the preset ratio coefficient of each detection group can be obtained.Implement one
In example, one group of preallocated detection group includes that the first temperature sensor and the second temperature sensor, i.e. one group detection group include two
Individual temperature sensor.In the present embodiment, also include before step S150 step (a1) to step (a5), step (a1) is to step
(a5) can perform before step S110.
Step (a1): obtain under multiple preset temperature the first temperature sensor and the second temperature in preallocated detection group respectively
The test temperature of degree sensor.
Wherein, the test temperature of the first temperature sensor is more than the test temperature of the second temperature sensor.
The preset temperature i.e. quantity of preset temperature can the most specifically be arranged.Such as, multiple by fix
Temperature sensor is positioned in calorstat and tests, and arranges the multiple whole temperature in the operating ambient temperature range of temperature sensor
Degree point is as preset temperature, such that it is able to obtain the test temperature of the different whole temperature spot of each temperature sensor correspondence.
Step (a2): calculate the test temperature of the first temperature sensor and the second temperature sensor under each preset temperature respectively
The difference of test temperature obtain multiple first difference.
Step (a3): calculate the test temperature of the second temperature sensor and corresponding preset temperature under each preset temperature respectively
Difference, obtains multiple second difference.
Step (a4): obtain each presetting according to the ratio of the first difference second difference corresponding with same preset temperature respectively
At a temperature of single temperature proportional coefficient.
Step (a4) calculates the formula of single temperature proportional coefficient and is back-calculated to obtain according to the computing formula of preliminary survey ambient temperature.Example
As, in the present embodiment, step (a4) is: the ratio calculating the first difference second difference corresponding with same preset temperature respectively is worth
Single temperature proportional coefficient under each preset temperature.That is:
K=(T2'-T1')/(T1'-T0')；
Wherein, T1' it is the test temperature of the second temperature sensor, T2' it is the test temperature of the first temperature sensor, K is pre-
If proportionality coefficient, T0' for preset temperature.
In another embodiment, when preset ratio coefficient takes 1/K, step (a4) is: calculate the second difference respectively with same
Single temperature proportional coefficient that the ratio of the first difference that one preset temperature is corresponding is worth under each preset temperature.
Step (a5): obtain the preset ratio coefficient of preallocated detection group according to multiple single temperature proportional coefficients.
In the present embodiment, step (a5) is: the meansigma methods calculating multiple single temperature proportional coefficient obtains preallocated detection
The preset ratio coefficient of group.Obtaining preset ratio coefficient by calculating meansigma methods, this preset ratio coefficient can be used for preset temperature
Middle minimum temperature value and the operating ambient temperature range of maximum temperature values, can improve thermometric accuracy.It is appreciated that
In other embodiments, step (a5) can also use other calculations to be averaging to obtain preset ratio coefficient, such as, ask multiple
The weighted mean of single temperature proportional coefficient.
Testing by arranging multiple preset temperature, each group of detection group can get multiple single temperature proportional coefficient, so
Obtain the preset ratio coefficient of this group detection group afterwards according to multiple single temperature proportional coefficient ratio, it is considered to temperature range wide, preset
Proportionality coefficient is representative strong, can improve thermometric accuracy.
As shown in table 1 below, be the test temperature of the first temperature sensor in a certain group of detection group in an embodiment, second
The test temperature of temperature sensor, preset temperature, single temperature proportional coefficient and the corresponding table of preset ratio coefficient.
Table 1
With reference to Fig. 4, the system for detecting temperature in an embodiment, obtain including induced signal acquisition module 110, detection temperature
Module 130, preliminary survey ambient temperature acquisition module 150 and whole survey ambient temperature acquisition module 170.
Induced signal acquisition module 110 is for obtaining the sense of the temperature sensor of various location in preallocated detection group
Induction signal.
Wherein, preallocated detection group includes at least two temperature sensor.Temperature sensor is used for experiencing position
Ambient temperature and be converted into induced signal, such as induced signal is voltage signal or current signal, and temperature sensor can be
Critesistor.The quantity of detection group can be one, it is also possible to for multiple.Multiple temperature sensors are allocated according to rule in advance
For at least one detection group.
Detection temperature acquisition module 130 for obtaining the detection temperature of each temperature sensor respectively according to induced signal.
, there is same thermal source when multiple temperature sensors are in the corresponding detection temperature of each temperature sensor
During environment, owing to there being thermal source to affect, detection temperature corresponding to each temperature sensor may differ, and distance thermal source is the nearest, obtains
Detection temperature the highest.By obtaining the detection temperature of corresponding each temperature sensor according to induced signal, each temperature can be obtained
The ambient temperature of the position that sensor detection obtains.Specifically, when temperature sensor is critesistor, detection temperature obtains
Delivery block 130 obtains the resistance of critesistor according to induced signal, and obtains detection temperature according to resistance.
Preliminary survey ambient temperature acquisition module 150 is for the preset ratio coefficient according to preallocated detection group and preallocated
The detection temperature of each temperature sensor in detection group, obtains the preliminary survey ambient temperature that preallocated detection group is corresponding.
Preset ratio coefficient can obtain in advance, and each detection group is to there being a preset ratio coefficient.When detection group
Quantity when being multiple, preliminary survey ambient temperature acquisition module 150 can obtain the preliminary survey ambient temperature of each detection group.By comprehensively
Consider the detection temperature of various location the first temperature sensor, the detection temperature of the second temperature sensor and preset ratio coefficient
It is calculated the preliminary survey ambient temperature of same detection group, can suitably eliminate the heat radiation of thermal source to thermometric impact, detection
Accuracy is high.
In one embodiment, preallocated detection group includes the first temperature sensor and the second temperature sensor.This enforcement
In example, with reference to Fig. 5, preliminary survey ambient temperature acquisition module 150 includes detecting difference computational unit 151, reference value acquiring unit 152
With preliminary survey ambient temperature computing unit 153.
Detection difference computational unit 151 for calculate in preallocated detection group the detection temperature of the first temperature sensor with
The difference of the detection temperature of the second temperature sensor obtains detecting difference.Wherein, the detection temperature of the first temperature sensor is more than
The detection temperature of the second temperature sensor.By being calculated detection difference, can be detected two temperature sensors in group
Detection error.
Reference value acquiring unit 152 for the preset ratio coefficient according to detection difference and preallocated detection group obtain with
The detection positively related reference value of difference.
In the present embodiment, reference value acquiring unit 152 is specifically for calculating the ratio of detection difference and preset ratio coefficient
Obtain reference value.
The difference of the preliminary survey ambient temperature computing unit 153 detection temperature with reference value for calculating the second temperature sensor
And as preliminary survey ambient temperature corresponding to detection group.
Owing to the structure of each temperature sensor and thermal source is fixed, heat transfer state is essentially identical, different temperature rise, diverse locations
Ambient temperature and the ratio of the formed thermal gradient of actual environment temperature that the temperature sensor detection at place obtains are essentially identical.Cause
This, detection temperature and proportionate relationship thereof by the temperature sensor according to distance thermal source diverse location are calculated initial environment
Temperature, can suitably eliminate the impact on temperature detection of dispelling the heat of thermal source, and accuracy is high.
In the present embodiment, preliminary survey ambient temperature acquisition module 150 obtains the preliminary survey ring of detection group with specific reference to equation below
Border temperature:
T0=T1-(T2-T1)/K；
Wherein, T1It is the detection temperature of the second temperature sensor, T2Being the detection temperature of the first temperature sensor, K is default
Proportionality coefficient, T0For preliminary survey ambient temperature.
Being appreciated that in other embodiments, it is also possible to using 1/K as preset ratio coefficient, now, reference value obtains single
Unit 152 obtains reference value for the product calculating detection difference and preset ratio coefficient.
Preallocated detection group can also include plural temperature sensor.At this point it is possible to by same detection group
In multiple temperature sensor combination of two obtain the junior unit of two temperature sensors composition, by junior unit close to thermal source
Temperature sensor as the first temperature sensor, another is as the second temperature sensor；In this embodiment, detection difference
After computing unit 151 is calculated detection difference in the same manner to each junior unit, then calculate the inspection of each junior unit
The meansigma methods of error of measurement value, as the detection difference of this group detection group；Reference value acquiring unit 152 tries to achieve ginseng in the same manner
Examine value；Preliminary survey ambient temperature computing unit 153 in the same manner, is asked according to the second temperature sensor in each junior unit
Junior unit preliminary survey ambient temperature after average, using the meansigma methods of the preliminary survey ambient temperature of each junior unit tried to achieve as this
The preliminary survey ambient temperature of group detection group.
Survey ambient temperature acquisition module 170 eventually and survey ambient temperature eventually for obtaining according to preliminary survey ambient temperature.
In one embodiment, the quantity of preallocated detection group is multiple, survey eventually ambient temperature acquisition module 170 by based on
Calculate the meansigma methods of multiple preliminary survey ambient temperature, and using meansigma methods as surveying ambient temperature eventually.When there being multiple preliminary survey ambient temperature,
Survey the meansigma methods that ambient temperature is multiple preliminary survey ambient temperature eventually；When only one of which preliminary survey ambient temperature, survey ambient temperature eventually
Equal with preliminary survey ambient temperature.Obtain surveying ambient temperature eventually by calculating meansigma methods, can reduce further and survey ambient temperature eventually
With the deviation of actual environment temperature, improve accuracy of measurement further.It is appreciated that in other embodiments, surveys environment temperature eventually
Degree acquisition module 170 can also use other calculations to be averaging to obtain eventually surveying ambient temperature, such as, and multiple preliminary survey environment temperature
The meansigma methods of remaining preliminary survey ambient temperature is sought after degree removes a minima and maximum.
Said temperature detecting system, obtains diverse location in preallocated detection group by induced signal acquisition module 110
The induced signal of the temperature sensor at place, detection temperature acquisition module 130 obtains each temperature sensor respectively according to induced signal
Detection temperature；Then preliminary survey ambient temperature acquisition module 150 is in units of group, according to the preset ratio of preallocated detection group
In coefficient and preallocated detection group, the detection temperature of each temperature sensor, obtains the preliminary survey environment that preallocated detection group is corresponding
Temperature；Last ambient temperature acquisition module 170 of surveying eventually surveys ambient temperature eventually according to the preliminary survey ambient temperature acquisition of each group.By dividing
After group considers that the detection temperature of various location temperature sensor obtains preliminary survey ambient temperature, then consider the preliminary survey ring of each group
Border temperature obtains surveying ambient temperature eventually, can suitably eliminate external disturbance (such as cooling heat source) and, on thermometric impact, subtract
The measured value of little temperature and the error of actual environment temperature, accuracy of measurement is high.
In one embodiment, said temperature detecting system also includes grouping module, is used for obtaining each temperature sensor and heat
The distance value in source, chooses lowest distance value from multiple distance values, and by temperature sensor corresponding for lowest distance value respectively with
Other temperature sensors component two-by-two is joined and is obtained preallocated detection group.
Such as, the number of temperature sensor is 4, and first temperature sensor distance thermal source is nearest, then predistribution obtains
Detection group be 3 groups, be respectively as follows: first temperature sensor and second temperature sensor, first temperature sensor and
Three temperature sensors, first temperature sensor and the 4th temperature sensor.Wherein, thermal source refers to distribute heat, do
Disturb the device of ambient temperature detection.Being appreciated that in other embodiments, grouping module can also be adopted and be carried out temperature in other ways
The distribution of degree sensor obtains detection group, such as, according to the distance value sequence of temperature sensor with thermal source, by former and later two distances
The temperature sensor of value correspondence is assigned as one group.
By in advance temperature sensor being tested, the preset ratio coefficient of each detection group can be obtained.Implement one
In example, one group of preallocated detection group includes the first temperature sensor and the second temperature sensor.In the present embodiment, said temperature
Detecting system also includes test temperature acquisition module (not shown), the first difference calculating module (not shown), the second mathematic interpolation
Module (not shown), single temperature proportional coefficients calculation block (not shown) and preset ratio coefficient acquisition module (not shown).
Test temperature acquisition module passes for obtaining under multiple preset temperature the first temperature in preallocated detection group respectively
Sensor and the test temperature of the second temperature sensor.
Wherein, the test temperature of the first temperature sensor is more than the test temperature of the second temperature sensor.
The preset temperature i.e. quantity of preset temperature can the most specifically be arranged.Such as, multiple by fix
Temperature sensor is positioned in calorstat and tests, and arranges the multiple whole temperature in the operating ambient temperature range of temperature sensor
Degree point is as preset temperature, such that it is able to obtain the test temperature of the different whole temperature spot of each temperature sensor correspondence.
First difference calculating module is for calculating under each preset temperature the test temperature of the first temperature sensor and the respectively
The difference of the test temperature of two temperature sensors obtains multiple first difference.
Second difference calculating module is for calculating under each preset temperature the test temperature of the second temperature sensor respectively with right
Answer the difference of preset temperature, obtain multiple second difference.
Single temperature proportional coefficients calculation block is for respectively according to second poor corresponding with same preset temperature of the first difference
The ratio of value obtains the single temperature proportional coefficient under each preset temperature.
Single temperature proportional coefficients calculation block calculates the formula calculating according to preliminary survey ambient temperature of single temperature proportional coefficient
Formula is back-calculated to obtain.Such as, in the present embodiment, single temperature proportional coefficients calculation block is for calculating the first difference with same respectively
Single temperature proportional coefficient that the ratio of the second difference that preset temperature is corresponding is worth under each preset temperature.That is:
K=(T2'-T1')/(T1'-T0')；
Wherein, T1' it is the test temperature of the second temperature sensor, T2' it is the test temperature of the first temperature sensor, K is pre-
If proportionality coefficient, T0' for preset temperature.
In another embodiment, when preset ratio coefficient takes 1/K, single temperature proportional coefficients calculation block is based on respectively
Calculate single temperature proportional coefficient that the ratio of the second difference first difference corresponding with same preset temperature is worth under each preset temperature.
Preset ratio coefficient acquisition module is for obtaining the pre-of preallocated detection group according to multiple single temperature proportional coefficients
If proportionality coefficient.
In the present embodiment, preset ratio coefficient acquisition module obtains for the meansigma methods calculating multiple single temperature proportional coefficient
The preset ratio coefficient of preallocated detection group.Obtaining preset ratio coefficient by calculating meansigma methods, this preset ratio coefficient can
Minimum temperature value and the operating ambient temperature range of maximum temperature values in preset temperature, can improve thermometric accurately
Degree.Being appreciated that in other embodiments, preset ratio coefficient acquisition module can also use other calculations to be averaging
To preset ratio coefficient, such as, seek the weighted mean of multiple single temperature proportional coefficient.
Testing by arranging multiple preset temperature, each group of detection group can get multiple single temperature proportional coefficient, so
Obtain the preset ratio coefficient of this group detection group afterwards according to multiple single temperature proportional coefficient ratio, it is considered to temperature range wide, preset
Proportionality coefficient is representative strong, can improve thermometric accuracy.
With reference to Fig. 6, the temperature-detecting device in an embodiment, it is positioned at diverse location including processor 210 and at least two
The temperature sensor 220 at place, temperature sensor 220 connects processor 210.
Temperature sensor 220 senses the ambient temperature of position and exports induced signal to processor 210, processor
210 obtain the induced signal of temperature sensor in preallocated detection group, obtain each temperature sensor respectively according to induced signal
Detection temperature, according to the inspection of each temperature sensor in the preset ratio coefficient of preallocated detection group and preallocated detection group
Testing temperature, obtains the preliminary survey ambient temperature that preallocated detection group is corresponding, and obtains survey environment temperature eventually according to preliminary survey ambient temperature
Degree, wherein, one group of preallocated detection group includes at least two temperature sensor.
In one embodiment, temperature sensor 220 is critesistor.Critesistor is temperature sensitive, at a temperature of difference
Showing different resistance values, by using critesistor induced environment temperature, induction sensitivity is high and is easy to data process.This
In embodiment, critesistor is negative tempperature coefficient thermistor.
In one embodiment, said temperature detection device also includes the alarm device (not shown) connecting processor, processes
Device output alarm signal when surveying ambient temperature more than or equal to predetermined threshold value eventually receives alarm signal to alarm device, alarm device
Report to the police after number.Predetermined threshold value can the most specifically be arranged.Therefore, the end that temperature-detecting device obtains in detection
Survey ambient temperature can realize time how high reporting to the police, in order to staff goes and finds out what's going in time, improves the convenience used.
Said temperature detection device, by using the temperature sensor 220 of multiple various locations to export induced signal extremely
Processor 210, processor 210 obtains the detection temperature of each temperature sensor respectively according to induced signal；Then in units of group,
The detection temperature of each temperature sensor in preset ratio coefficient according to preallocated detection group and preallocated detection group, obtains
The preliminary survey ambient temperature that preallocated detection group is corresponding；Obtain finally according to the preliminary survey ambient temperature of each group and survey ambient temperature eventually.
After considering that the detection temperature of various location temperature sensor obtains preliminary survey ambient temperature by packet, then consider each group
Preliminary survey ambient temperature obtains surveying ambient temperature eventually, can suitably eliminate external disturbance (such as cooling heat source) to thermometric shadow
Ringing, reduce the measured value of temperature and the error of actual environment temperature, accuracy of measurement is high.
With reference to Fig. 7, in a specific embodiment, said temperature detection device can apply to infrared thermometer, infrared body temperature
Meter includes infrared radiation thermometer 310, circuit board 300 and said temperature detection device, and processor 210 is arranged on circuit board, circuit
Other devices it are additionally provided with, such as 4G module, photographic head, high-capacity lithium battery, high-definition display screen, loudspeaker etc. on plate；Infrared radiation thermometer
For measuring human surface temperature, temperature sensor 220 is used for measuring ambient temperature, and processor 210 can be according to human body surface
Temperature and ambient temperature obtain human body practical problem.Said temperature is detected device and is applied to infrared thermometer, electricity can be eliminated
The multiple device heat radiation impact on ambient temperature measurement on the plate of road, temperature measurement accuracy is high.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic executed in example is all described, but, as long as the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that, come for those of ordinary skill in the art
Saying, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a temperature checking method, it is characterised in that including:
Obtain the induced signal of the temperature sensor of various location in preallocated detection group, described preallocated detection group bag
Include at least two temperature sensor；
The detection temperature of each temperature sensor is obtained respectively according to described induced signal；
Each temperature sensor in preset ratio coefficient according to described preallocated detection group and described preallocated detection group
Detection temperature, obtains the preliminary survey ambient temperature that described preallocated detection group is corresponding；
Obtain according to described preliminary survey ambient temperature and survey ambient temperature eventually.
Temperature checking method the most according to claim 1, it is characterised in that described preallocated detection group includes the first temperature
Degree sensor and the second temperature sensor；The described preset ratio coefficient according to described preallocated detection group and described predistribution
Detection group in the detection temperature of each temperature sensor, obtain the preliminary survey ambient temperature that described preallocated detection group is corresponding, bag
Include:
Calculate the detection temperature of the first temperature sensor described in described preallocated detection group and described second temperature sensor
The difference of detection temperature obtain detecting difference, wherein, the detection temperature of described first temperature sensor is more than described second temperature
The detection temperature of degree sensor；
Preset ratio coefficient according to described detection difference and described preallocated detection group obtains and described detection difference positive
The reference value closed；
Calculate the detection temperature of described second temperature sensor and the difference of described reference value and as described preallocated detection
The preliminary survey ambient temperature that group is corresponding.
Temperature checking method the most according to claim 1, it is characterised in that described preallocated detection group includes the first temperature
Degree sensor and the second temperature sensor；The described preset ratio coefficient according to described preallocated detection group and described predistribution
Detection group in the detection temperature of each temperature sensor, obtain preliminary survey ambient temperature corresponding to described preallocated detection group it
Before, also include:
Obtain the first temperature sensor described in described preallocated detection group and described second temperature under multiple preset temperature respectively
The test temperature of degree sensor, wherein, the test temperature of described first temperature sensor is more than described second temperature sensor
Test temperature；
Calculate the test temperature of described first temperature sensor and the examination of described second temperature sensor under each preset temperature respectively
The difference testing temperature obtains multiple first difference；
Calculate the test temperature of described second temperature sensor and the difference of corresponding preset temperature under each preset temperature respectively, obtain
Multiple second differences；
Obtain under each preset temperature according to the ratio of described first difference the second difference corresponding with same preset temperature respectively
Single temperature proportional coefficient；
The preset ratio coefficient of described preallocated detection group is obtained according to multiple single temperature proportional coefficients.
Temperature checking method the most according to claim 1, it is characterised in that the quantity of described preallocated detection group is many
Individual；Described acquisition according to described preliminary survey ambient temperature surveys ambient temperature eventually, including:
Calculate the meansigma methods of multiple preliminary survey ambient temperature, and described meansigma methods is surveyed ambient temperature eventually as described.
5. a system for detecting temperature, it is characterised in that including:
Induced signal acquisition module, for obtaining the sensing letter of the temperature sensor of various location in preallocated detection group
Number, described preallocated detection group includes at least two temperature sensor；
Detection temperature acquisition module, for obtaining the detection temperature of each temperature sensor respectively according to described induced signal；
Preliminary survey ambient temperature acquisition module, for the preset ratio coefficient according to described preallocated detection group and described predistribution
Detection group in the detection temperature of each temperature sensor, obtain the preliminary survey ambient temperature that described preallocated detection group is corresponding；
Survey ambient temperature acquisition module eventually, survey ambient temperature eventually for obtaining according to described preliminary survey ambient temperature.
System for detecting temperature the most according to claim 5, it is characterised in that described preallocated detection group includes the first temperature
Degree sensor and the second temperature sensor, described preliminary survey ambient temperature acquisition module includes:
Detection difference computational unit, for calculating the detection temperature of the first temperature sensor described in described preallocated detection group
Obtain detecting difference, wherein, the inspection of described first temperature sensor with the difference of the detection temperature of described second temperature sensor
Testing temperature is more than the detection temperature of described second temperature sensor；
Reference value acquiring unit, obtains for the preset ratio coefficient according to described detection difference and described preallocated detection group
With the described positively related reference value of detection difference；
Preliminary survey ambient temperature computing unit, for calculating the detection temperature of described second temperature sensor and the difference of described reference value
Value as preliminary survey ambient temperature corresponding to described preallocated detection group.
System for detecting temperature the most according to claim 5, it is characterised in that described preallocated detection group includes the first temperature
Degree sensor and the second temperature sensor, described system for detecting temperature also includes:
Test temperature acquisition module, for obtaining the first temperature described in described preallocated detection group under multiple preset temperature respectively
Degree sensor and the test temperature of described second temperature sensor, wherein, the test temperature of described first temperature sensor is more than
The test temperature of described second temperature sensor；
First difference calculating module, for calculating test temperature and the institute of described first temperature sensor under each preset temperature respectively
The difference of the test temperature stating the second temperature sensor obtains multiple first difference；
Second difference calculating module, for calculating under each preset temperature the test temperature of described second temperature sensor respectively with right
Answer the difference of preset temperature, obtain multiple second difference；
Single temperature proportional coefficients calculation block, for respectively according to second poor corresponding with same preset temperature of described first difference
The ratio of value obtains the single temperature proportional coefficient under each preset temperature；
Preset ratio coefficient acquisition module, for obtaining the pre-of described preallocated detection group according to multiple single temperature proportional coefficients
If proportionality coefficient.
System for detecting temperature the most according to claim 5, it is characterised in that the quantity of described preallocated detection group is many
Individual, described ambient temperature acquisition module of surveying eventually is for calculating the meansigma methods of multiple preliminary survey ambient temperature, and described meansigma methods is made
Ambient temperature is surveyed eventually for described.
9. a temperature-detecting device, it is characterised in that include that processor and at least two are positioned at the temperature biography of various location
Sensor, described temperature sensor connects described processor；
The ambient temperature of described temperature sensor senses position also exports induced signal to described processor, described processor
Obtain the induced signal of temperature sensor in preallocated detection group, obtain each temperature sensor respectively according to described induced signal
Detection temperature, pass according to each temperature in the preset ratio coefficient of described preallocated detection group and described preallocated detection group
The detection temperature of sensor, obtains the preliminary survey ambient temperature that described preallocated detection group is corresponding, and according to described preliminary survey environment temperature
Degree obtains surveys ambient temperature eventually, and wherein, preallocated detection group includes at least two temperature sensor.
Temperature-detecting device the most according to claim 9, it is characterised in that described temperature sensor is critesistor.
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| CN109282912A (en) * | 2017-07-21 | 2019-01-29 | 恩德莱斯和豪瑟尔分析仪表两合公司 | For determining the process automation sensor and method of the temperature of medium |
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| CN106711814A (en) * | 2017-03-06 | 2017-05-24 | 山东杰光电气科技股份有限公司 | Power distribution cabinet and temperature adjustment method thereof |
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