CN105997016B - Method and system for identifying measurement object based on electronic thermometer - Google Patents
Method and system for identifying measurement object based on electronic thermometer Download PDFInfo
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- CN105997016B CN105997016B CN201610415542.4A CN201610415542A CN105997016B CN 105997016 B CN105997016 B CN 105997016B CN 201610415542 A CN201610415542 A CN 201610415542A CN 105997016 B CN105997016 B CN 105997016B
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- 238000005259 measurement Methods 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 230000008859 change Effects 0.000 claims description 12
- 238000005070 sampling Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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Abstract
The invention provides a method and a system for identifying a measurement object based on an electronic thermometer. By the method, the measuring object can be effectively identified.
Description
Technical field
The present invention relates to field of temperature measurement, it is especially a kind of based on electronic thermometer identify measurement object method and its
System.
Background technology
In the production test procedure of electronic thermometer, the thermometric of thermostatted water or thermostatic oil bath to electronic thermometer is often utilized
Precision is tested.It is human body or thermostatted water or thermostatic oil bath that object to be measured, which cannot be distinguished, in electronic thermometer in the prior art.
Invention content
For the above-mentioned prior art the problem of, the present invention provide a kind of based on electronic thermometer identification measurement object
Method and its system, being capable of automatic identification measurement object.
The method for identifying measurement object based on electronic thermometer of the present invention, technical solution are as follows：
The temperature of object to be measured is measured using electronic thermometer, if the first temperature change width measured in the first time window
Degree reaches first threshold, start recording run time；
Judge whether the run time reaches setting time length, if so, judging measure in the second time window the
Whether two ranges of temperature are less than second threshold, wherein the time span of second time window is less than the setting time
Length；
If the second temperature amplitude of variation is less than second threshold, the object to be measured is determined as the larger survey of heat conductivity
Measure object；If the second temperature amplitude of variation be greater than or equal to second threshold, by the object to be measured be determined as heat conductivity compared with
Small measurement object.
The system that measurement object is identified based on electronic thermometer of the present invention, including：
Algorithm starting module, the temperature for measuring object to be measured using electronic thermometer, if surveying in the first time window
The first range of temperature obtained reaches first threshold, start recording run time；
Judgment module, for judging whether the run time reaches setting time length, if so, judging in the second time
Whether the second temperature amplitude of variation measured in window is less than second threshold, wherein the time span of second time window is less than
The setting time length；
First identification module sentences the object to be measured if being less than second threshold for the second temperature amplitude of variation
It is set to the larger measurement object of heat conductivity；If the second temperature amplitude of variation is greater than or equal to second threshold, will be described to be measured
Object is determined as the smaller measurement object of heat conductivity.
The present invention measures the temperature of object to be measured using electronic thermometer, passes through the first temperature measured in first time window
Amplitude of variation situation start recording run time, according to the second temperature measured in the run time and the second time window
Amplitude of variation situation, the measurement object that identification electronic thermometer measures.As it can be seen that method through the invention, due to measurement object
Difference, the time that electronic thermometer reaches equilibrium temperature is also different, to effectively identifying measurement object.
Description of the drawings
Fig. 1 is the flow diagram of the method that measurement object is identified based on electronic thermometer of one embodiment；
Fig. 2 is the structural schematic diagram of the system that measurement object is identified based on electronic thermometer of one embodiment.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
One step it is described in detail.
The flow diagram of the method that measurement object is identified based on electronic thermometer of middle one embodiment is please referred to Fig.1,
Including step S101 to step S103：
S101, the temperature of object to be measured is measured using electronic thermometer, if the first temperature measured in the first time window
Amplitude of variation reaches first threshold, start recording run time.
Wherein, the object to be measured can be unknown object to be measured, can also be known but not yet distinguish to be measured
The heat conductivity of object, different objects to be measured is of different sizes, and the object to be measured of different heat conductivity sizes reaches the thermally equilibrated time
It is different.For example, as it is known that two kinds of objects to be measured are thermostatted water or thermostatical oil and human body, but which kind of object to be measured not yet determined
It is thermostatted water or thermostatical oil, which kind of object to be measured is human body.The first time window is measured for recording in predetermined time period
Object to be measured the first range of temperature, including two parameters of time span and range of temperature, the two parameters
It can be adjusted according to specific circumstances.The run time is the first range of temperature measured in the first time window
When reaching first threshold, start the time used in the electronic thermometer calculated identification measurement object.
By step S101, become if the condition of start recording run time is the first temperature measured in the first time window
Change amplitude reaches first threshold, its purpose is to differentiate electronic thermometer whether there is or not being placed into measurement object, also in order to knowing
Whether the measurement object of other electronic thermometer is air themperature under normal circumstances, to more accurately identify measurement pair to be measured
As.
Further, according to the sampling period of electronic thermometer, the time span of first time window is set to several
The length in the sampling period, avoids measurement error.For example, the sampling period of electronic thermometer is about 1 second to 6 seconds, once
There are one bigger saltus steps for temperature in several continuous sampling periods, you can thinks that electronic thermometer has touched measurement pair
As；When electronic thermometer is not placed into measurement object, measurement object may be considered air, under normal circumstances,
The temperature change of air is not too large, therefore takes a smaller value.Preferably, this step uses 1 second sampling period
Electronic thermometer sets the time span of first time window to 4 times of sampling period, i.e., 4 seconds, and first threshold is set as 2 degree,
Measurement error can be reduced to a greater degree.
Further, it after start recording run time, if inverse change occurs in the temperature for measuring object to be measured, weighs
New start recording run time.The inverse change is：After start recording run time, when the temperature measured is in uphill process
The middle variation for temperature decline occur, or when the temperature measured the variation of temperature rise occurs during declining.When what is measured
When inverse change occurs in temperature, it can lead to be mistakenly considered temperature there are no stablizing, which, then can be again in order to avoid this phenomenon
Start recording run time improves detection accuracy to enhance the anti-interference ability of identification.For example, thermostatted water or thermostatical oil
It is adjusted into trip temperature using cold water, if electronic thermometer is located at the water outlet of cold water, due to the influence of cold water, clinical thermometer
Temperature will appear apparent decline, causes algorithm to be mistakenly considered temperature and stablizes not yet, in order to avoid this phenomenon, when detecting one
When a faster cooling decline process, run time is recorded again.
S102, judges whether the run time reaches setting time length, if so, judging to measure in the second time window
Second temperature amplitude of variation whether be less than second threshold, wherein the time span of second time window be less than the setting
Time span.
In this step, treated by two parameters of second temperature amplitude of variation measured in run time and the second time window
It surveys object to be identified, when meeting run time and reaching the condition of setting time length, passes through second temperature amplitude of variation
The value of parameter is identified, and can guarantee the accuracy of identification.
Further, judge the second temperature amplitude of variation that measures in the second time window whether be less than second threshold it
Before, it obtains the electronic thermometer and measures object to be measured and reach time span needed for thermal balance, it is long as the setting time
Degree.It selects to reach time required when thermal balance as setting time length, electronic thermometer can be improved and identify object to be measured
Efficiency.
Further, judge the second temperature amplitude of variation that measures in the second time window whether be less than second threshold it
Before, further include the setting steps of the second time window, specially：Measurement accuracy according to thermistor in the electronic thermometer is true
Determine third threshold value；It is long that the third range of temperature that acquisition electronic thermometer measures is less than the time required when the third threshold value
Degree, by the time span of acquisition and third threshold value scaled down, obtains the second time window, can reduce the shadow of measurement error
It rings.Second time window is a movable time window, and the time span of the second time window is less than the setting time length,
The stop time point of time window is less than or equal to the end time of the setting time length.When the second temperature in the second time window
When spending amplitude of variation less than second threshold, i.e., when rate of rise in temperature is less than setting rate, it is believed that temperature reaches stable state.With
It is a preferred example of this step down：The time span of second time window is set as 30 seconds and range of temperature setting
It is 0.02 degree.Due to thermistor in electronic thermometer temperature measurement accuracy be 0.01 degree, if temperature change set 0.01 degree or
When following, it is easy to be influenced by measurement error.Temperature rising curve can be approximated to be logarithmic curve, i.e. heating rate increasingly
Slowly, if using straight line come approximate heating curve when, heating rate is necessarily greater than true heating rate, that is, if heating
Rate Δ T/ Δs x (T is temperature, and x is the time) be less than threshold value when, true heating rate must smaller, it is also more stable.Electronics
When increasing extent of temperature of the clinical thermometer in 300s is no more than 0.15 degree, it is believed that basically reach stabilization.It will obtain in time span
Smaller and third threshold value scaled down, i.e. (because of the accuracy of electronic thermometer when the interior heatings of 30s are no more than 0.015 degree
It is 0.01 degree, so being 0.02 degree in actual use), you can think that the temperature of electronic thermometer reaches stable.
S103, if the second temperature amplitude of variation be less than second threshold, by the object to be measured be determined as heat conductivity compared with
Big measurement object；If the second temperature amplitude of variation is greater than or equal to second threshold, the object to be measured is judged to leading
The smaller measurement object of temperature.
Further, if the run time does not reach setting time length, what judgement measured in the second time window
Whether second temperature amplitude of variation is less than second threshold；If the second temperature amplitude of variation is less than second threshold, waited for described
It surveys object and is determined as the larger measurement object of heat conductivity；It, will if the second temperature amplitude of variation is greater than or equal to second threshold
The object to be measured is determined as the smaller measurement object of heat conductivity.
In this step, by two parameters of range of temperature for being measured in run time and the second time window to Jie to be measured
Matter is identified, and when one of parameter first meets Rule of judgment, is identified using the value of another parameter, both be can guarantee
The accuracy of identification, and run time can be reduced, improve recognition efficiency.For example, as it is known that two kinds of testing mediums are thermostatted water or perseverance
Warm oil and human body, since electronic thermometer needs the less time that can reach very little in thermostatted water or thermostatical oil
Range of temperature is led to when electronic thermometer first reaches the range of temperature of a very little in thermostatted water or thermostatical oil
The length for crossing run time can recognize that thermostatted water or thermostatical oil and human body；Or when running between first to reach setting time long
When spending, pass through the first range of temperature and second temperature amplitude of variation situation measured in the second time window, you can identification is permanent
Warm water or thermostatical oil and human body improve recognition efficiency so as to shorten the time of heat-conduction medium to be measured is identified.
Further, the object to be measured is thermostatted water, thermostatical oil or human body；If second temperature amplitude of variation is less than second
The object to be measured is determined as the larger thermostatted water or thermostatical oil of heat conductivity by threshold value；If second temperature amplitude of variation be more than or
Equal to second threshold, the object to be measured is determined as the smaller human body of heat conductivity.By this step, perseverance can be effectively identified
Warm water, thermostatical oil or human body.
The method for identifying measurement object based on electronic thermometer of the present embodiment measures object to be measured using electronic thermometer
Temperature, by the first range of temperature situation start recording run time measured in first time window, according to the fortune
The second temperature amplitude of variation situation measured in row time and the second time window, the measurement pair that identification electronic thermometer measures
As.As it can be seen that through this embodiment, due to the difference of measurement object, the time that electronic thermometer reaches equilibrium temperature is also different,
To effectively identify measurement object.
The present invention also provides a kind of systems identifying measurement object based on electronic thermometer, as shown in Fig. 2, being opened including algorithm
Dynamic model block 201, judgment module 202, the first identification module 203.
The algorithm starting module 201 is used to measure the temperature of object to be measured using electronic thermometer, if at the first time
The first range of temperature measured in window reaches first threshold, start recording run time；The judgment module 202 is for sentencing
Whether the run time of breaking reaches setting time length, if so, judging the second temperature measured in the second time window variation
Whether amplitude is less than second threshold, wherein the time span of second time window is less than the setting time length；Described
If an identification module 203 is less than second threshold for the second temperature amplitude of variation, the object to be measured is determined as heat conduction
Spend larger measurement object；If the second temperature amplitude of variation is greater than or equal to second threshold, the object to be measured is judged
For the smaller measurement object of heat conductivity.
The system for identifying measurement object based on electronic thermometer of the present embodiment measures object to be measured using electronic thermometer
Temperature, by the first range of temperature situation start recording run time measured in first time window, according to the fortune
The second temperature amplitude of variation situation measured in row time and the second time window, the measurement pair that identification electronic thermometer measures
As.As it can be seen that through this embodiment, due to the difference of measurement object, the time that electronic thermometer reaches equilibrium temperature is also different,
To effectively identify measurement object.
The system for identifying measurement object based on electronic thermometer further includes the second identification in one of the embodiments,
Module judges the temperature change measured in the second time window if not reaching setting time length for the run time
Whether amplitude is less than second threshold；If the second temperature amplitude of variation is less than second threshold, the object to be measured is determined as
The larger measurement object of heat conductivity；If the second temperature amplitude of variation is greater than or equal to second threshold, by the object to be measured
It is determined as the smaller measurement object of heat conductivity.Pass through two ginsengs of range of temperature measured in run time and the second time window
It is several that testing medium is identified, when one of parameter first meets Rule of judgment, known using the value of another parameter
Not, it not only can guarantee the accuracy of identification, but also run time can be reduced, and improved recognition efficiency.For example, as it is known that two kinds of testing mediums are
Thermostatted water or thermostatical oil and human body, since electronic thermometer needs the less time that can reach in thermostatted water or thermostatical oil
The range of temperature of one very little, when electronic thermometer first reaches the temperature change of a very little in thermostatted water or thermostatical oil
When amplitude, pass through the i.e. recognizable thermostatted water of the length of run time or thermostatical oil and human body；Or when running between first reach
When setting time length, by the first range of temperature and second temperature amplitude of variation situation measured in the second time window,
I.e. recognizable thermostatted water or thermostatical oil and human body improve recognition efficiency so as to shorten the time of heat-conduction medium to be measured is identified.
The system for identifying measurement object based on electronic thermometer further includes at the first time in one of the embodiments,
Window setup module sets the time span of first time window to several institutes for the sampling period according to electronic thermometer
The length for stating the sampling period, avoids measurement error.
The system for identifying measurement object based on electronic thermometer further includes that algorithm is restarted in one of the embodiments,
Submodule, for after start recording run time, if inverse change occurs in the temperature measured, restarting record operation
Time.
The judgment module 202 further includes time span setting submodule in one of the embodiments, for obtaining
It states electronic thermometer and measures object to be measured and reach time span needed for thermal balance, as the setting time length.Selection reaches
The required time as setting time length, can improve the efficiency that electronic thermometer identifies object to be measured when to thermal balance.
The system for identifying measurement object based on electronic thermometer further included the second time in one of the embodiments,
Window setup module, for determining third threshold value according to the measurement accuracy of thermistor in the electronic thermometer；Obtain electron
The range of temperature that temperature measures is less than time span required when the third threshold value, by the time span and third of acquisition
Threshold value scaled down obtains the second time window, can reduce the influence of measurement error.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. the method for identifying measurement object based on electronic thermometer, which is characterized in that including：
The temperature of object to be measured is measured using electronic thermometer, if the first range of temperature measured in the first time window reaches
To first threshold, start recording run time；
Judge whether the run time reaches setting time length, if so, judging the measure in the second time window second temperature
Spend whether amplitude of variation is less than second threshold, wherein the time span of second time window is less than the setting time length；
If the second temperature amplitude of variation is less than second threshold, the object to be measured is determined as the larger measurement pair of heat conductivity
As；If the second temperature amplitude of variation is greater than or equal to second threshold, the object to be measured is determined as that heat conductivity is smaller
Measurement object.
2. the method according to claim 1 for identifying measurement object based on electronic thermometer, which is characterized in that the judgement
Whether the run time reaches setting time length, including：
If the run time does not reach setting time length, the second temperature measured in the second time window variation width is judged
Whether degree is less than second threshold；
If the second temperature amplitude of variation is less than second threshold, the object to be measured is determined as the larger measurement pair of heat conductivity
As；If the second temperature amplitude of variation is greater than or equal to second threshold, the object to be measured is determined as that heat conductivity is smaller
Measurement object.
3. the method according to claim 1 for identifying measurement object based on electronic thermometer, which is characterized in that the beginning
Run time is recorded, includes later：
If inverse change occurs in the temperature for measuring object to be measured, restart to record run time.
4. the method according to claim 1 or 2 for identifying measurement object based on electronic thermometer, which is characterized in that described
Judge whether the run time reaches setting time length, includes before：
It obtains the electronic thermometer and measures object to be measured and reach time span needed for thermal balance, it is long as the setting time
Degree.
5. the method according to claim 1 or 2 for identifying measurement object based on electronic thermometer, which is characterized in that described
Judge whether the second temperature amplitude of variation measured in the second time window is less than second threshold, includes before：
Third threshold value is determined according to the measurement accuracy of thermistor in the electronic thermometer；
It obtains the third range of temperature that electronic thermometer measures and is less than time span required when the third threshold value, will obtain
The time span and third threshold value scaled down obtained, obtains the second time window.
6. the method according to claim 1 for identifying measurement object based on electronic thermometer, which is characterized in that described to be measured
Object is thermostatted water, thermostatical oil or human body；
If the second temperature amplitude of variation is less than second threshold, the object to be measured is determined as the larger measurement pair of heat conductivity
As, including：
If second temperature amplitude of variation is less than second threshold, the object to be measured is determined as the larger thermostatted water of heat conductivity or perseverance
Warm oil；
If the second temperature amplitude of variation is greater than or equal to second threshold, the object to be measured is determined as that heat conductivity is smaller
Measurement object, including：
If second temperature amplitude of variation is greater than or equal to second threshold, the object to be measured is determined as the smaller people of heat conductivity
Body.
7. the system for identifying measurement object based on electronic thermometer, which is characterized in that including：
Algorithm starting module, the temperature for measuring object to be measured using electronic thermometer, if measure in the first time window
First range of temperature reaches first threshold, start recording run time；
Judgment module, for judging whether the run time reaches setting time length, if so, judging in the second time window
Whether the second temperature amplitude of variation measured is less than second threshold, wherein the time span of second time window is less than described
Setting time length；
The object to be measured is determined as by the first identification module if being less than second threshold for the second temperature amplitude of variation
The larger measurement object of heat conductivity；If the second temperature amplitude of variation is greater than or equal to second threshold, by the object to be measured
It is determined as the smaller measurement object of heat conductivity.
8. the system according to claim 7 for identifying measurement object based on electronic thermometer, which is characterized in that further include：
Second identification module, if not reaching setting time length for the run time, judgement is surveyed in the second time window
Whether the range of temperature obtained is less than second threshold；If the second temperature amplitude of variation is less than second threshold, waited for described
It surveys object and is determined as the larger measurement object of heat conductivity；It, will if the second temperature amplitude of variation is greater than or equal to second threshold
The object to be measured is determined as the smaller measurement object of heat conductivity.
9. the system according to claim 7 for identifying measurement object based on electronic thermometer, which is characterized in that further include：
Algorithm restarts module, for after start recording run time, if inverse change occurs in the temperature measured, opening again
Begin record run time.
10. the system according to claim 7 or 8 for identifying measurement object based on electronic thermometer, which is characterized in that also wrap
It includes：
Second time window setup module, for determining third threshold according to the measurement accuracy of thermistor in the electronic thermometer
Value；It obtains the range of temperature that electronic thermometer measures and is less than time span required when the third threshold value, by acquisition
Time span and third threshold value scaled down, obtain the second time window.
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| CN102667456A (en) * | 2010-06-28 | 2012-09-12 | 株式会社藤仓 | Method for detecting transition to normal current of superconducting wire material |
| CN102684275A (en) * | 2011-03-17 | 2012-09-19 | 罗伯特·博世有限公司 | Charging device, battery, and method for recognizing a foreign object |
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| JP3900865B2 (en) * | 2001-06-04 | 2007-04-04 | オムロンヘルスケア株式会社 | Infrared thermometer, infrared thermometer temperature state estimation method, information notification method, and measurement operation management method |
| JP4520775B2 (en) * | 2003-08-19 | 2010-08-11 | ナトコ株式会社 | Non-opaque paint color matching method, painted product manufacturing method, non-opaque paint color matching device, painted product manufacturing device, and program thereof |
| JP6337416B2 (en) * | 2013-03-12 | 2018-06-06 | セイコーエプソン株式会社 | Temperature measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102667456A (en) * | 2010-06-28 | 2012-09-12 | 株式会社藤仓 | Method for detecting transition to normal current of superconducting wire material |
| CN102684275A (en) * | 2011-03-17 | 2012-09-19 | 罗伯特·博世有限公司 | Charging device, battery, and method for recognizing a foreign object |
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