CN112362168B - Body temperature measuring method, device, system and storage medium - Google Patents
Body temperature measuring method, device, system and storage medium Download PDFInfo
- Publication number
- CN112362168B CN112362168B CN202010972501.1A CN202010972501A CN112362168B CN 112362168 B CN112362168 B CN 112362168B CN 202010972501 A CN202010972501 A CN 202010972501A CN 112362168 B CN112362168 B CN 112362168B
- Authority
- CN
- China
- Prior art keywords
- radiation
- body temperature
- wavelength
- signal
- energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000036760 body temperature Effects 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000005855 radiation Effects 0.000 claims abstract description 310
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 42
- 238000004590 computer program Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 238000013507 mapping Methods 0.000 claims description 4
- 230000001174 ascending effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000003595 spectral effect Effects 0.000 abstract description 5
- 238000004458 analytical method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 8
- 230000005457 Black-body radiation Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000001757 thermogravimetry curve Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
- G01J5/0025—Living bodies
Abstract
The application relates to a body temperature measuring method, a device, a system and a storage medium, wherein the body temperature measuring method comprises the following steps: receiving a plurality of radiation signals, wherein the plurality of radiation signals comprise infrared radiation waves with a plurality of wavelengths measured by a plurality of thermoelectric sensing units, and the infrared radiation waves with the plurality of wavelengths are generated by scattering infrared radiation rays radiated by a human body through a polarizer; determining radiation energy and wavelength corresponding to the radiation signal; detecting a radiation signal with the maximum radiation energy from the plurality of radiation signals, and taking the radiation signal with the maximum radiation energy as a target radiation signal; and determining the body temperature of the human body according to the wavelength corresponding to the target radiation signal. Through the application, the problem that temperature measurement is not accurate for different people in the related technology is solved, the wavelength with the maximum radiation energy is obtained through analysis of spectral wavelength of human body thermal radiation, and the human body temperature is calculated according to the wavelength with the maximum radiation energy.
Description
Technical Field
The present application relates to the field of body temperature measurement technologies, and in particular, to a body temperature measurement method, device, system, and storage medium.
Background
The existing body temperature measuring methods are divided into a contact type and a non-contact type. In the non-contact body temperature measurement technology, a test instrument is not in direct contact with a human body, and the most common non-contact body temperature measurement instrument is designed based on the blackbody radiation principle.
The non-contact type body temperature measuring instrument based on the blackbody radiation principle can measure infrared energy radiated by the surface of a human body and calculate the temperature of the human body under the condition of not contacting with the human body. The non-contact type temperature measurement based on the blackbody radiation principle is the mainstream technology of the existing non-contact type temperature measurement, the whole infrared spectrum of infrared energy radiated by a human body is measured in the existing non-contact type temperature measurement based on the blackbody radiation principle, and then the body temperature radiated by the human body is reversely deduced in a mode of various compensation parameters.
However, under the conditions of different skin colors, different skin surface roughness, different environmental temperatures and humidities, different air transmission media and the like, the non-contact temperature measurement method has large parameter difference needing to be compensated, and when the temperature and humidity or the dust concentration are different, the parameters needing to be compensated need to be repeatedly adjusted, so that the accurate temperature measurement cannot be carried out on different people.
At present, no effective solution is provided aiming at the problem of inaccurate temperature measurement of different people in the related art.
Disclosure of Invention
The embodiment of the application provides a body temperature measuring method, a body temperature measuring device, a body temperature measuring system and a storage medium, and at least solves the problem that temperature measurement of different people is not accurate in the related art.
In a first aspect, an embodiment of the present application provides a body temperature measurement method, including:
receiving a plurality of radiation signals, wherein the plurality of radiation signals comprise infrared radiation waves with a plurality of wavelengths measured by a plurality of thermoelectric sensing units, and the infrared radiation waves with the plurality of wavelengths are generated by scattering infrared radiation rays radiated by a human body through a polarizer;
determining the radiation energy and the wavelength corresponding to the radiation signal;
detecting the radiation signal with the maximum radiation energy from the plurality of radiation signals, and taking the radiation signal with the maximum radiation energy as a target radiation signal;
and determining the body temperature of the human body according to the wavelength corresponding to the target radiation signal.
In some embodiments, determining the body temperature according to the wavelength corresponding to the target radiation signal includes:
the body temperature T is calculated as follows:
λmaxT＝2897.6μm×K
wherein λ ismaxAnd K is a Boltzmann constant corresponding to the wavelength of the target radiation signal.
In some embodiments, detecting the radiation signal with the largest radiation energy from the plurality of radiation signals and using the radiation signal with the largest radiation energy as a target radiation signal includes:
arranging the radiant energy of the plurality of radiant signals according to the ascending order of the wavelength, and fitting a first curve, wherein the first curve comprises a mapping relation between the wavelength and the radiant energy;
extracting a first radiation signal within a first preset range from the first curve, and determining the radiation energy of the first radiation signal;
selecting the radiation signal with the radiation energy as a radiation energy peak value from the first radiation signal, and taking the radiation signal with the radiation energy as a radiation energy peak value as the target radiation signal.
In some of these embodiments, extracting the first radiation signal within the first preset range in the first curve includes: extracting the radiation signal with the wavelength within a preset threshold range from the first curve, and determining the radiation signal with the wavelength within the preset threshold range as the first radiation signal.
In a second aspect, an embodiment of the present application provides a body temperature measurement device, including:
the receiving module is used for receiving a plurality of radiation signals, wherein the plurality of radiation signals comprise infrared radiation waves with a plurality of wavelengths measured by a plurality of thermoelectric sensing units, and the infrared radiation waves with the plurality of wavelengths are generated by scattering infrared radiation rays radiated by a human body by a polarizer;
a determining module, configured to determine the radiant energy and the wavelength corresponding to the radiation signal;
the judging module is used for detecting the radiation signal with the maximum radiation energy from the plurality of radiation signals and taking the radiation signal with the maximum radiation energy as a target radiation signal;
and the processing module is used for determining the body temperature of the human body according to the wavelength corresponding to the target radiation signal.
In a third aspect, embodiments of the present application provide a body temperature measurement system, which includes a polarizer, a thermoelectric sensing module, and a processor; the plurality of thermoelectric sensing units of the thermoelectric sensing module are connected with the processor, wherein the polarizer is used for scattering infrared radiation rays radiated by a human body into a continuous infrared radiation band, and the infrared radiation band comprises infrared radiation waves with a plurality of wavelengths; the thermoelectric sensing unit is used for receiving one of the infrared radiation waves with the multiple wavelengths and measuring a radiation signal corresponding to the infrared radiation wave; the processor is configured to perform the body temperature measurement method as described in the first aspect above.
In some embodiments, the polarizer includes a polarizing prism, wherein the polarizing prism is configured to scatter the infrared radiation rays into a plurality of wavelengths of the infrared radiation waves arranged in an order of increasing wavelength and decreasing wavelength.
In some embodiments, the pyroelectric sensing unit comprises a pyroelectric sensor, wherein the pyroelectric sensor is configured to receive the infrared radiation waves and measure the radiation signals corresponding to the infrared radiation waves.
In some embodiments, the body temperature measurement system further includes a display module and a power supply module, the power supply module is connected with at least the processor and is used for supplying power, the display module is used for being connected with the processor and displaying the body temperature calculated and measured by the processor according to a preset display mode, wherein the preset display mode includes a digital image mode.
In a fourth aspect, an embodiment of the present application provides an electronic device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and the processor executes the computer program to implement the body temperature measurement method according to the first aspect.
In a fifth aspect, the present application provides a storage medium, on which a computer program is stored, and the program is executed by a processor to implement the body temperature measurement method according to the first aspect.
Compared with the related art, the body temperature measuring method, the body temperature measuring device, the body temperature measuring system and the storage medium provided by the embodiment of the application receive a plurality of radiation signals; determining radiation energy and wavelength corresponding to the radiation signal; detecting a radiation signal with the maximum radiation energy from the plurality of radiation signals, and taking the radiation signal with the maximum radiation energy as a target radiation signal; the body temperature of the human body is determined according to the wavelength corresponding to the target radiation signal, the problem that temperature measurement of different people is not accurate in the related technology is solved, the wavelength with the maximum radiation energy is obtained through analysis of the spectral wavelength of the thermal radiation of the human body, and the human body temperature is calculated according to the wavelength with the maximum radiation energy.
The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the application.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a block diagram of a hardware structure of a terminal of a body temperature measurement method according to an embodiment of the present application;
FIG. 2 is a flow chart of a method of body temperature measurement according to an embodiment of the present application;
FIG. 3 is a graph of wavelength, temperature, and radiant energy according to an embodiment of the present disclosure;
FIG. 4 is a flow chart of a method of body temperature measurement according to a preferred embodiment of the present application;
FIG. 5 is a block diagram of a body temperature measurement device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a body temperature measurement system according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided in the present application without any inventive step are within the scope of protection of the present application.
It is obvious that the drawings in the following description are only examples or embodiments of the present application, and that it is also possible for a person skilled in the art to apply the present application to other similar contexts on the basis of these drawings without inventive effort. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of ordinary skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments without conflict.
Unless defined otherwise, technical or scientific terms referred to herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. Reference to "a," "an," "the," and similar words throughout this application are not to be construed as limiting in number, and may refer to the singular or the plural. The present application is directed to the use of the terms "including," "comprising," "having," and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Reference to "connected," "coupled," and the like in this application is not intended to be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as referred to herein means two or more. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. Reference herein to the terms "first," "second," "third," and the like, are merely to distinguish similar objects and do not denote a particular ordering for the objects.
The various techniques described herein may be used in various non-contact body temperature measurement systems and devices, although the various techniques described herein are applicable to a range of applications including, but not limited to, body temperature measurements.
Before describing and explaining embodiments of the present application, a description will be given of the related art used in the present application as follows:
in physics, Planck's law of Blackbody radiation (also referred to simply as Planck's law, Blackbody radiation law) refers to: the emissivity and frequency of electromagnetic radiation emitted from a black body are related to each other at any temperature T. The temperature of the black body can be calculated through the radiance and the frequency of the black body. Wien displacement law (Wien displacement law), one of the basic laws of thermal radiation. The wien displacement law means that the product of the temperature of an absolute black body and the wavelength lambda corresponding to the maximum value of the radiation power (radiant energy) is a constant at a certain temperature, namely lambdamaxT ═ b; where b is 0.002897 mxk, which is called wien constant. The Wien constant shows that when the temperature of an absolute black body rises, the maximum value of the radiation power moves to the direction of short wave, the Wien displacement law is consistent with the short wave part of an experimental curve radiated by the black body, the whole energy spectrum radiated by the black body is consistent, and the Wien displacement law is the maximum exploration of the classical physics on the problem of black body radiation; wien's displacement law has many practical applications, such as determining the thermodynamic temperature of a star by measuring its spectral line distribution; the temperature distribution of the surface of the object can also be determined by comparing the color change conditions of different areas of the surface of the object, and the thermodynamic temperature distribution represented by the graph is also called a thermogram; the remote sensing technology of the thermograph can be used for monitoring forest fire prevention and monitoring pathological changes of certain parts of a human body; the thermograph has increasingly wide application range and good application prospect in the aspects of space navigation, industry, medicine, military and the like.
The method provided by the embodiment can be executed in a terminal, a computer or a similar operation device. Taking the example of the terminal as an example, fig. 1 is a hardware structure block diagram of the terminal of the body temperature measurement method according to the embodiment of the present application. As shown in fig. 1, the terminal 10 may include one or more (only one shown in fig. 1) processors 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, and optionally may also include a transmission device 106 for communication functions and an input-output device 108. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration and is not intended to limit the structure of the terminal. For example, the terminal 10 may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.
The memory 104 can be used for storing computer programs, for example, software programs and modules of application software, such as a computer program corresponding to the body temperature measurement method in the embodiment of the present application, and the processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, so as to implement the above-mentioned method. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the terminal 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 106 is used to receive or transmit data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the terminal 10. In one example, the transmission device 106 includes a Network adapter (NIC) that can be connected to other Network devices through a base station to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is used to communicate with the internet in a wireless manner.
The embodiment provides a body temperature measuring method. Fig. 2 is a flowchart of a body temperature measurement method according to an embodiment of the present application, and as shown in fig. 2, the flowchart includes the following steps:
step S201, receiving a plurality of radiation signals, wherein the plurality of radiation signals include infrared radiation waves with a plurality of wavelengths measured by a plurality of pyroelectric sensing units, and the infrared radiation waves with the plurality of wavelengths are generated by scattering infrared radiation light radiated from a human body by a polarizer.
In this embodiment, a body performing a body temperature measurement method includes a processor; infrared radiation light radiated by a human body is dispersed into a continuous infrared radiation band through a polarizer, the continuous infrared radiation band comprises a plurality of infrared radiation waves corresponding to the body surface temperature of the human body, the infrared radiation waves corresponding to the body surface temperature range (35-42 ℃) of the human body fall on a plurality of corresponding thermoelectric sensing units, and each thermoelectric sensing unit corresponds to infrared radiation with a specific wavelength; the thermoelectric sensing unit converts the received infrared radiation waves into radiation signals and then transmits the radiation signals to the processor.
Step S202, determining the corresponding radiant energy and wavelength of the radiation signal.
In this embodiment, each of the scattered infrared radiation waves corresponds to a specific energy intensity and a specific wavelength.
Step S203 detects a radiation signal with the maximum radiation energy from the plurality of radiation signals, and sets the radiation signal with the maximum radiation energy as a target radiation signal.
In this embodiment, the radiation signal with the maximum radiation energy is detected from the plurality of radiation signals, and the radiation signal corresponds to a specific wavelength, so that the temperature of the subject can be calculated after the specific wavelength is detected.
It should be noted that, in the process of measuring the body temperature, a plurality of acquired radiation signals can be attenuated to different degrees because the distance from the measured person to the polarizer and the distance from the polarizer to the pyroelectric sensing unit are different, therefore, in the multiple measurements, the radiation energy of a group of obtained radiation signals can be strong or weak, if the body temperature of the measured person is measured by simply adopting the strong or weak radiation energy of the measured radiation signals, when the radiation energy of the obtained group of radiation signals is smaller than a certain threshold value, the processor can determine the group of radiation signals as invalid radiation signals, thereby causing the failure of the measurement of the body temperature.
By adopting the embodiment to determine the body temperature of the measured person according to the radiation signal with the maximum radiation energy, the problem that the body temperature measurement fails when the radiation energy of the radiation signal is less than a certain threshold value can be solved; when the radiation energy of the radiation signal is not attenuated to a very small degree, the radiation energy attenuation of the radiation signal does not affect the change of the wavelength corresponding to the radiation signal, and the body temperature of the measurer is determined according to the wavelength corresponding to the radiation signal by selecting the radiation signal with the maximum radiation energy from the measured radiation signals.
And step S204, determining the body temperature of the human body according to the wavelength corresponding to the target radiation signal.
Through the steps S201 to S204, a plurality of radiation signals are received; determining radiation energy and wavelength corresponding to the radiation signal; detecting a radiation signal with the maximum radiation energy from the plurality of radiation signals, and taking the radiation signal with the maximum radiation energy as a target radiation signal; and determining the body temperature of the human body according to the wavelength corresponding to the target radiation signal. Through the application, the problem that temperature measurement is not accurate for different people in the related technology is solved, the wavelength with the maximum radiation energy is obtained through analysis of spectral wavelength of human body thermal radiation, and the human body temperature is calculated according to the wavelength with the maximum radiation energy.
It can be understood that in a general natural measurement environment, the total radiant energy for measuring the whole infrared spectrum is adopted to measure the body temperature, but the radiant rate (influenced by color, surface roughness and the like) of the body surface of a measured object, the radiation propagation coefficient of a propagation medium and the radiation absorption rate of a thermoelectric sensor all have certain influence on the measurement of the total radiant energy, and meanwhile, the measurement difference of the total radiant energy is different due to the difference of the propagation coefficients caused by different crowds, individuals with different skin colors and the temperature and humidity of propagation air, so that the error of measuring the body temperature by adopting the method for measuring the total radiant energy is larger. In this embodiment, the spectral wavelength of the thermal radiation of the human body is analyzed to obtain the wavelength with the maximum radiant energy, and then the temperature is calculated according to the wavelength; in the embodiment, although parameters such as the radiance of different roughness degrees and different skin colors of a human body, the propagation coefficient of a propagation medium and the like have a certain attenuation effect on the total radiation energy, the attenuation of the radiation energy of each wavelength in a radiation frequency band is uniform, and the embodiment ensures that accurate body temperature measurement can be performed on different people in various different environments by avoiding the influence of the attenuation.
In some embodiments, determining the body temperature according to the wavelength corresponding to the target radiation signal includes the following steps: the body temperature T is calculated as follows:
λmaxT＝2897.6μm×K
wherein λ ismaxAnd K is a Boltzmann constant corresponding to the wavelength of the target radiation signal.
In this embodiment, the above formula is wien's displacement law, and in the non-contact body temperature measurement process based on the wien's displacement law, the specific radiation energy of the measured object does not need to be known, and the corresponding maximum wavelength can be obtained as long as the variation trend of the radiation energy relative to the wavelength can be obtained, and then the temperature of the measured object is calculated.
In some embodiments, detecting the radiation signal with the maximum radiation energy from the plurality of radiation signals, and using the radiation signal with the maximum radiation energy as the target radiation signal includes the following steps:
In this embodiment, the first curve is a corresponding curve of wavelength and radiant energy, and the wavelength value of the strongest radiant energy can be determined according to the corresponding curve of wavelength and radiant energy.
And 2, extracting a first radiation signal in a first preset range from the first curve, and determining the radiation energy of the first radiation signal.
In this embodiment, the first preset range may be set to have a wavelength within a certain range, or may be set to correspond to a peak point of the first curve.
And 3, selecting a radiation signal with radiation energy as a radiation energy peak value from the first radiation signal, and taking the radiation signal with the radiation energy as a target radiation signal.
In some of these embodiments, extracting the first radiation signal within the first preset range in the first curve includes the steps of: and extracting the radiation signal with the wavelength within a preset threshold range from the first curve, and determining the radiation signal with the wavelength within the preset threshold range as a first radiation signal.
FIG. 3 is a graph showing the relationship between wavelength, temperature and radiant energy according to an embodiment of the present application, and as shown in FIG. 3, the distribution of the IR energy of the object to be measured tends to increase and decrease with the wavelength, wherein the point with the highest IR energy corresponds to a specific wavelength λmaxOnce the specific wavelength is measured, then according to wien's law: lambda [ alpha ]maxT is 2897.6 μm × K, and the temperature T of the measured object can be measured by calculation.
It should be noted that the relationship diagram of wavelength, temperature, and radiant energy shown in fig. 3 shows the distribution curves of the radiant field energy density of a plurality of measured objects by wavelength, and the distribution curve of the radiant field energy density of each measured object is generated according to planck's law.
Fig. 4 is a flowchart of a body temperature measuring method according to a preferred embodiment of the present application, as shown in fig. 4, the flowchart includes the steps of:
in step S401, infrared radiation rays of a human body are divided into infrared radiation bands having continuous wavelengths by a polarizer.
In step S402, each thermoelectric sensing unit of the thermoelectric sensor group receives infrared radiation waves with corresponding wavelengths.
In step S403, the radiant energy of the infrared radiant wave corresponding to the thermoelectric sensing unit is transmitted to the processor.
And S404, fitting a first curve by the processor according to the obtained wavelength and the radiation energy, determining the wavelength value with the highest radiation energy, and calculating the test body temperature according to the Venn' S law.
In an alternative embodiment of the present application, the body temperature measurement is performed as follows: receiving a radiation signal of a plurality of wavelengths; fitting a plurality of wavelengths of radiation signals to a graph of energy versus wavelength;
selecting a peak value with the wavelength range of 9150 nm-9400 nm on a curve graph; and determining the wavelength corresponding to the peak value, and reversely deducing the temperature. It should be noted that if the graph is monotonically increasing or monotonically decreasing in the wavelength range of 9150nm to 9400nm, the measured temperature is not in the body temperature range.
It should be noted that the steps illustrated in the above-described flow diagrams or in the flow diagrams of the figures may be performed in a computer system, such as a set of computer-executable instructions, and that, although a logical order is illustrated in the flow diagrams, in some cases, the steps illustrated or described may be performed in an order different than here.
The present embodiment further provides a body temperature measuring device, which is used to implement the above embodiments and preferred embodiments, and the description of the device is omitted. As used hereinafter, the terms "module," "unit," "subunit," and the like may implement a combination of software and/or hardware for a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 5 is a block diagram showing a structure of a body temperature measuring device according to an embodiment of the present application, and as shown in fig. 5, the device includes:
and a receiving module 51, configured to receive a plurality of radiation signals, where the plurality of radiation signals include infrared radiation waves of a plurality of wavelengths measured by the plurality of pyroelectric sensing units, and the infrared radiation waves of the plurality of wavelengths are generated by scattering infrared radiation light radiated from a human body by the polarizer.
And the determining module 52 is coupled to the receiving module 51 and configured to determine the radiation energy and the wavelength corresponding to the radiation signal.
And the judging module 53 is coupled to the determining module 52, and is configured to detect a radiation signal with the largest radiation energy from the plurality of radiation signals, and use the radiation signal with the largest radiation energy as the target radiation signal.
And the processing module 54 is coupled with the judging module 53 and is used for determining the body temperature of the human body according to the wavelength corresponding to the target radiation signal.
In some embodiments, the processing module 54 is configured to calculate the body temperature T according to the following formula: lambda [ alpha ]maxT is 2897.6 μm × K, where λmaxAnd K is a Boltzmann constant corresponding to the wavelength of the target radiation signal.
In some embodiments, the determining module 53 is configured to arrange the radiant energies of the multiple radiant signals in an order of increasing wavelength, and fit a first curve, where the first curve includes a mapping relationship between the wavelength and the radiant energy; extracting a first radiation signal in a first preset range from the first curve, and determining the radiation energy of the first radiation signal; and selecting a radiation signal with radiation energy as a radiation energy peak value from the first radiation signals, and taking the radiation signal with the radiation energy as a target radiation signal.
In some embodiments, the determining module 53 is configured to extract the radiation signal with the wavelength within the preset threshold range from the first curve, and determine the radiation signal with the wavelength within the preset threshold range as the first radiation signal.
The above modules may be functional modules or program modules, and may be implemented by software or hardware. For a module implemented by hardware, the modules may be located in the same processor; or the modules can be respectively positioned in different processors in any combination.
The embodiment also provides a body temperature measuring system. Fig. 6 is a schematic structural diagram of a body temperature measurement system according to an embodiment of the present application, and as shown in fig. 6, the body temperature measurement system includes: a polarizer 61, a thermoelectric sensing module 62, and a processor 63; the plurality of thermoelectric sensing units 621 of the thermoelectric sensing module 62 are connected to the processor 63, wherein the polarizer 61 is configured to scatter infrared radiation light radiated from a human body into a continuous infrared radiation band, and the infrared radiation band includes infrared radiation waves of a plurality of wavelengths; the thermoelectric sensing unit 621 is configured to receive one of the infrared radiation waves with multiple wavelengths and measure a radiation signal corresponding to the infrared radiation wave; processor 63 is configured to perform the steps of any of the method embodiments described above.
In this embodiment, the processor 63 is also used for data conversion, temperature calculation, and display control.
In some of the embodiments, the polarizer 61 includes a polarizing prism, wherein the polarizing prism is configured to scatter the infrared radiation rays into a plurality of wavelengths of infrared radiation waves arranged in an order of increasing wavelengths and decreasing wavelengths.
In some embodiments, the pyroelectric sensing unit 621 comprises a pyroelectric sensor, wherein the pyroelectric sensor is configured to receive infrared radiation waves and measure radiation signals corresponding to the infrared radiation waves.
In some embodiments, the body temperature measuring system further comprises a display module 64 and a power supply module 65, the power supply module 65 is connected with at least the processor 63 and is used for supplying power, the display module 64 is used for being connected with the processor 63 and displaying the body temperature calculated and measured by the processor 63 according to a preset display mode, wherein the preset display mode comprises a digital image mode.
In this embodiment, the power supply module 65 includes, but is not limited to, an integrated modular dc power adapter and a switching power supply, and the power supply module 65 is used for providing a stable and reliable power supply for the body temperature measurement system, and the display module 64 includes, but is not limited to, a liquid crystal module and a liquid crystal display.
The present embodiment also provides an electronic device comprising a memory having a computer program stored therein and a processor configured to execute the computer program to perform the steps of any of the above method embodiments.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.
Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:
and S1, receiving a plurality of radiation signals, wherein the plurality of radiation signals comprise infrared radiation waves with a plurality of wavelengths measured by a plurality of thermoelectric sensing units, and the infrared radiation waves with the plurality of wavelengths are generated by scattering infrared radiation rays radiated by the human body by the polarizer.
And S2, determining the corresponding radiant energy and wavelength of the radiation signal.
And S3, detecting the radiation signal with the maximum radiation energy from the plurality of radiation signals, and taking the radiation signal with the maximum radiation energy as the target radiation signal.
And S4, determining the body temperature according to the wavelength corresponding to the target radiation signal.
It should be noted that, for specific examples in this embodiment, reference may be made to examples described in the foregoing embodiments and optional implementations, and details of this embodiment are not described herein again.
In addition, in combination with the body temperature measurement method in the foregoing embodiments, the embodiments of the present application may provide a storage medium to implement. The storage medium having stored thereon a computer program; the computer program, when executed by a processor, implements any of the body temperature measurement methods of the above embodiments.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method of measuring body temperature, comprising:
receiving a plurality of radiation signals, wherein the plurality of radiation signals comprise infrared radiation waves with a plurality of wavelengths measured by a plurality of thermoelectric sensing units, each thermoelectric sensing unit corresponds to an infrared radiation wave with a specific wavelength, and the infrared radiation waves with the plurality of wavelengths are generated by scattering infrared radiation rays radiated by a human body by a polarizer;
determining the radiation energy and the wavelength corresponding to the radiation signal;
detecting the radiation signal with the maximum radiation energy from the plurality of radiation signals, and taking the radiation signal with the maximum radiation energy as a target radiation signal;
and determining the body temperature of the human body according to the wavelength corresponding to the target radiation signal.
2. The method of claim 1, wherein determining the body temperature according to the wavelength corresponding to the target radiation signal comprises:
the body temperature T is calculated as follows:
λmax T＝2897.6μm×K
wherein λ max is the wavelength corresponding to the target radiation signal, and K is boltzmann constant.
3. The method for measuring body temperature according to claim 1, wherein detecting the radiation signal with the largest radiation energy from the plurality of radiation signals and regarding the radiation signal with the largest radiation energy as a target radiation signal comprises:
arranging the radiant energy of the plurality of radiant signals according to the ascending order of the wavelength, and fitting a first curve, wherein the first curve comprises a mapping relation between the wavelength and the radiant energy;
extracting a first radiation signal within a first preset range from the first curve, and determining the radiation energy of the first radiation signal;
selecting the radiation signal with the radiation energy as a radiation energy peak value from the first radiation signal, and taking the radiation signal with the radiation energy as a radiation energy peak value as the target radiation signal.
4. The method of measuring body temperature according to claim 3, wherein extracting a first radiation signal within a first preset range in the first curve comprises:
extracting the radiation signal with the wavelength within a preset threshold range from the first curve, and determining the radiation signal with the wavelength within the preset threshold range as the first radiation signal.
5. A body temperature measuring device is characterized in that: the method comprises the following steps:
the receiving module is used for receiving a plurality of radiation signals, wherein the plurality of radiation signals comprise infrared radiation waves with a plurality of wavelengths measured by a plurality of thermoelectric sensing units, and the infrared radiation waves with the plurality of wavelengths are generated by scattering infrared radiation rays radiated by a human body by a polarizer;
a determining module, configured to determine the radiant energy and the wavelength corresponding to the radiation signal;
a judging module, configured to detect the radiation signal with the largest radiation energy from the multiple radiation signals, and use the radiation signal with the largest radiation energy as a target radiation signal;
and the processing module is used for determining the body temperature of the human body according to the wavelength corresponding to the target radiation signal.
6. A body temperature measuring system is characterized by comprising a polarizer, a thermoelectric sensing module and a processor; the plurality of thermoelectric sensing units of the thermoelectric sensing module are connected with the processor, wherein the polarizer is used for scattering infrared radiation rays radiated by a human body into a continuous infrared radiation band, and the infrared radiation band comprises infrared radiation waves with a plurality of wavelengths; the thermoelectric sensing unit is used for receiving one of the infrared radiation waves with the multiple wavelengths and measuring a radiation signal corresponding to the infrared radiation wave; the processor is configured to perform a body temperature measurement method as defined in any one of claims 1 to 4.
7. The system of claim 6, wherein the polarizer comprises a polarizing prism, wherein the polarizing prism is configured to scatter the infrared radiation into the infrared radiation waves of a plurality of wavelengths arranged in an order of increasing wavelength and decreasing wavelength.
8. The system of claim 6, wherein the pyroelectric sensing unit comprises a pyroelectric sensor, wherein the pyroelectric sensor is configured to receive the infrared radiation waves and measure the radiation signals corresponding to the infrared radiation waves.
9. The system of claim 6, further comprising a display module and a power supply module, wherein the power supply module is connected to at least the processor and configured to supply power, and the display module is configured to be connected to the processor and configured to display the body temperature calculated and measured by the processor according to a preset display mode, wherein the preset display mode includes a digital image mode.
10. A storage medium on which a computer program is stored, which program, when being executed by a processor, carries out a method of measuring body temperature according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010972501.1A CN112362168B (en) | 2020-09-16 | 2020-09-16 | Body temperature measuring method, device, system and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010972501.1A CN112362168B (en) | 2020-09-16 | 2020-09-16 | Body temperature measuring method, device, system and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112362168A CN112362168A (en) | 2021-02-12 |
| CN112362168B true CN112362168B (en) | 2021-12-17 |
Family
ID=74516816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010972501.1A Active CN112362168B (en) | 2020-09-16 | 2020-09-16 | Body temperature measuring method, device, system and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112362168B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4932789A (en) * | 1988-04-12 | 1990-06-12 | Citizen Watch Co., Ltd. | Radiation clinical thermometer |
| CN102620833A (en) * | 2011-02-01 | 2012-08-01 | 田乃良 | Infrared temperature measurement method and infrared temperature measurement system |
| CN104634458A (en) * | 2014-11-04 | 2015-05-20 | 北京富吉瑞光电科技有限公司 | Temperature measurement calibration system and temperature measurement method |
| CN106061385A (en) * | 2014-03-12 | 2016-10-26 | 索尼公司 | Measurement device and measurement method |
| CN110006531A (en) * | 2019-04-25 | 2019-07-12 | 北京万羿科技有限公司 | A kind of method of non-contact measurement temperature |
| CN111637979A (en) * | 2020-06-17 | 2020-09-08 | 上海巨哥电子科技有限公司 | Multicolor temperature measurement-based device and method and storage medium |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8328420B2 (en) * | 2003-04-22 | 2012-12-11 | Marcio Marc Abreu | Apparatus and method for measuring biologic parameters |
| WO2020018168A1 (en) * | 2018-07-16 | 2020-01-23 | Lawrence Livermore National Security, Llc | System and method for multi-channel pyrometer allowing non-contact temperature measurements down to 800 k on the microsecond scale |
| CN111238650B (en) * | 2020-03-11 | 2021-04-13 | 中南大学 | Blast furnace molten iron temperature measurement method and system based on special infrared spectrum |
-
2020
- 2020-09-16 CN CN202010972501.1A patent/CN112362168B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4932789A (en) * | 1988-04-12 | 1990-06-12 | Citizen Watch Co., Ltd. | Radiation clinical thermometer |
| CN102620833A (en) * | 2011-02-01 | 2012-08-01 | 田乃良 | Infrared temperature measurement method and infrared temperature measurement system |
| CN106061385A (en) * | 2014-03-12 | 2016-10-26 | 索尼公司 | Measurement device and measurement method |
| CN104634458A (en) * | 2014-11-04 | 2015-05-20 | 北京富吉瑞光电科技有限公司 | Temperature measurement calibration system and temperature measurement method |
| CN110006531A (en) * | 2019-04-25 | 2019-07-12 | 北京万羿科技有限公司 | A kind of method of non-contact measurement temperature |
| CN111637979A (en) * | 2020-06-17 | 2020-09-08 | 上海巨哥电子科技有限公司 | Multicolor temperature measurement-based device and method and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112362168A (en) | 2021-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Marinetti et al. | Emissivity estimation for accurate quantitative thermography | |
| KR101779761B1 (en) | Temperature compensation thermometer and method using a distance measuring seneor | |
| US9261552B2 (en) | Fault detector for operating process of electric arc furnace and method thereof | |
| Fletcher et al. | Comparison of non-contact infrared skin thermometers | |
| CN103076101B (en) | Method for calibrating thermal infrared imager pixel point | |
| EA002288B1 (en) | Non-invasive continuous blood glucose monitoring | |
| CN105784333A (en) | High-temperature spectrum emissivity measuring method and device of infrared window | |
| Zhou et al. | Improvement of mono-window algorithm for retrieving land surface temperature from HJ-1B satellite data | |
| CN106539567A (en) | Body core temperature is measured | |
| Owda et al. | Electromagnetic signatures of human skin in the millimeter wave band 80-100 GHz | |
| CN105352988A (en) | System for evaluating thermal insulation performance of exterior wall of building and method thereof | |
| CN108542363A (en) | A kind of skin physiology instrument for measuring index and method | |
| CN109163810A (en) | High-temperature rotor radiation temperature measurement device and method | |
| CN112362168B (en) | Body temperature measuring method, device, system and storage medium | |
| CN111829665A (en) | Method, device and storage medium for measuring body temperature based on human body as virtual blackbody | |
| CN108896989B (en) | Millimeter wave radar imaging and pattern recognition | |
| CN113218515A (en) | Infrared multispectral temperature calibrator | |
| WO2017160684A1 (en) | Optical measurements of chemical content | |
| CN116105875A (en) | Polarization calibration method for short wave infrared band of polarized remote sensor based on background radiation correction | |
| CN201892573U (en) | Near-infrared radiation thermometer | |
| CN105223230A (en) | A kind of infrared electromagnetic wave transparent material radiation measurement of transmission characterist method | |
| US11879783B2 (en) | Planck spectrometer | |
| CN109990907A (en) | A kind of the IR parameters measurement device and measuring method of objective body | |
| CN209342253U (en) | A kind of temperature monitoring device | |
| CN106539566A (en) | Body core temperature is measured |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |