CN114235210A - Core body temperature measuring method and device - Google Patents
Core body temperature measuring method and device Download PDFInfo
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- CN114235210A CN114235210A CN202111355536.1A CN202111355536A CN114235210A CN 114235210 A CN114235210 A CN 114235210A CN 202111355536 A CN202111355536 A CN 202111355536A CN 114235210 A CN114235210 A CN 114235210A
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Abstract
The application provides a core body temperature measuring method and device, and relates to the technical field of human body medical core body temperature monitoring equipment. The measuring method is applied to a measuring device arranged on the surface of the chest of a testee, the measuring device comprises a detection module, the detection module comprises a heat conduction layer, a first sensor is arranged on one side, facing the chest, of the heat conduction layer, and a second sensor is arranged on one side, facing away from the chest, of the heat conduction layer; the method comprises the following steps: acquiring measurement data, wherein the measurement data comprises the body surface temperature of the chest cavity acquired by a first sensor and the internal temperature of the heat conduction layer acquired by a second sensor; respectively inputting the body surface temperature and the internal temperature into a preset prediction model to be processed to obtain a body surface predicted temperature and an internal predicted temperature; and determining the core body temperature of the testee according to the body surface predicted temperature and the internal predicted temperature. The core body temperature measuring method and the core body temperature measuring device can solve the technical problem that the existing human body core temperature measuring method cannot continuously measure the human body core temperature in a special environment.
Description
Technical Field
The application relates to the technical field of human body medical core body temperature monitoring equipment, in particular to a core body temperature measuring method and device.
Background
Body temperature is one of the important vital signs of human body, and is an important basis for clinically reflecting the health condition of human body. The traditional measuring methods of measuring eardrum temperature by using an infrared thermometer, measuring armpit skin temperature by using a thermometer and the like can only detect body surface temperature, and the detection result is easily influenced by external environment temperature. The core temperature of the human body is not easily influenced by the external environment, and can more accurately reflect the health condition of the human body than the body surface temperature.
The existing human body core temperature measuring methods comprise invasive measuring methods for measuring pulmonary artery blood temperature, bladder temperature and the like and noninvasive measuring methods for measuring rectal temperature, the invasive measuring methods bring discomfort to a testee, all can be realized by medical workers using professional medical equipment, and the human body core temperature cannot be continuously monitored in special environments such as fire rescue, deep sea detection and the like.
Disclosure of Invention
The embodiment of the application provides a core body temperature measuring method and device, and can solve the technical problem that the existing human body core temperature measuring method cannot continuously measure the human body core temperature in a special environment.
In a first aspect, the embodiment of the application provides a core body temperature measuring method, which is applied to a measuring device arranged on the surface of the chest of a testee, wherein the measuring device comprises a detection module, the detection module comprises a heat conduction layer, a first sensor is arranged on one side of the heat conduction layer facing the chest, and a second sensor is arranged on one side of the heat conduction layer away from the chest;
the method comprises the following steps: obtaining measurement data, the measurement data comprising: the body surface temperature of the chest cavity collected by the first sensor and the internal temperature of the heat conduction layer collected by the second sensor; respectively inputting the body surface temperature and the internal temperature into a preset prediction model for processing to obtain the body surface predicted temperature and the internal predicted temperature; and determining the core body temperature of the testee according to the body surface predicted temperature and the internal predicted temperature.
The core body temperature measuring method can be applied to a wearable measuring device, and long time is needed for the sensor to reach a stable temperature value from an initial temperature value, so after the body surface temperature collected by the first sensor and the internal temperature of the heat conduction layer collected by the second sensor are obtained, the two temperature values are respectively input into a preset prediction model to be processed, the body surface predicted temperature when the first sensor reaches the stable state and the internal predicted temperature when the second sensor reaches the stable state are respectively obtained, then the core body temperature of a testee is determined according to the body surface predicted temperature and the internal predicted temperature, the measuring time of the core body temperature can be shortened, and the measuring accuracy is improved. In addition, the wearable measuring device is not limited by the environment, and can continuously measure the core body temperature of the testee at any time and any place.
Optionally, the prediction model is:
Tfit(i)＝T(i)+k×[T(2)-T(1)]×(ea×i-e400a)
wherein, Tfit(i) The temperature is predicted, T (i) represents the temperature collected at the ith sampling moment, i is a positive integer greater than 2, T (2) represents the temperature collected at the 2 nd sampling moment, T (1) represents the temperature collected at the 1 st sampling moment, k and alpha are constant parameters, and the interval between two adjacent sampling moments is 5 seconds.
Based on the above alternative, the process of the sensor from the initial temperature to the stable temperature is exponential. Therefore, the stable temperature value of the sensor can be predicted based on the temperature values acquired at the initial two sampling moments and the exponential function.
Optionally, the measuring device further includes a third sensor, the heat conduction layer is provided with a heat flow sensor inside, and the measurement data further includes: the environment temperature of the environment where the testee is located and the heat flow density in the heat conduction layer, which are acquired by the third sensor, are acquired by the heat flow sensor;
determining the core body temperature of the subject according to the body surface predicted temperature and the internal predicted temperature, comprising: and inputting the body surface predicted temperature, the internal predicted temperature, the environment temperature and the heat flux density into a preset core body temperature optimization model for processing to obtain the core body temperature of the testee.
Optionally, the core body temperature optimization model is:
wherein, TcIndicating core body temperature, Td_Indicating the predicted temperature, T, of the body surfaceu_Indicating the internal predicted temperature, TambDenotes the ambient temperature, RpDenotes the thermal conductivity of the heat-conducting layer, RtRepresenting the thermal conductivity, R, of human tissueisoDenotes the thermal conductivity of the thermal insulation module arranged outside the detection module, Aiso_mDenotes the external surface area of the insulation module, AsIndicating the diameter, U, of the detection moduletfDenotes the heat flow density, KtfIs a constant.
Based on the above alternative manner, the core body temperature of the subject may be affected by the external environment temperature, the thermal conductivity of the heat conductive layer, and other factors. Therefore, the traditional human body core body temperature model can be corrected according to the environment temperature of the testee acquired by the third sensor and the heat flow density of the heat conduction layer, so that the accuracy of the measurement result of the human body core body temperature is improved.
In a second aspect, an embodiment of the present application provides a core body temperature measurement device, which includes: detection module and control module, detection module includes: a heat conducting layer, a first sensor, a second sensor and a heat flow sensor;
when the measuring device is arranged on the surface of the chest cavity of a testee, the first sensor is used for collecting the body surface temperature of the chest cavity, the second sensor is used for collecting the internal temperature of the heat conduction layer, and the heat flow sensor is used for collecting the heat flow density in the heat conduction layer; the first sensor is arranged on the side of the heat conduction layer facing the chest cavity, the second sensor is arranged on the side of the heat conduction layer facing away from the chest cavity, the heat flow sensor is arranged between the first sensor and the second sensor, and the control module is used for executing the method of any one of the first aspect to determine the core body temperature of the testee.
Optionally, the detection module further comprises: a closed cell foam and a first thermal barrier coating; be provided with the recess on the obturator foam, the heat-conducting layer sets up in the recess, and the second sensor and obturator foam butt, and first thermal barrier coating sets up the surface at the obturator foam.
Optionally, the measurement device further comprises a thermal insulation module comprising: the thermal insulation aerogel and a second thermal insulation coating are arranged on the outer surface of the thermal insulation aerogel; the heat insulation module is provided with a concave cavity, the detection module is arranged in the concave cavity, and one side of the second heat insulation coating facing the chest cavity is provided with a protective layer; and a third sensor is arranged on the second heat-insulating coating and used for acquiring the ambient temperature of the environment where the testee is located.
Based on above-mentioned optional mode, set up adiabatic module in detection module's the outside for detection module parcel is in adiabatic module's cavity, thereby promotes the heat preservation effect, reduces external environment to measuring result's influence. The protective layer is arranged on one side, facing the chest, of the second heat insulation coating, so that the comfort of the testee wearing the measuring device can be improved.
Optionally, the control module comprises a computing unit and a communication unit; the calculating unit is respectively connected with the first sensor, the second sensor, the third sensor and the heat flow sensor and is used for determining the core body temperature; the communication unit is connected with the computing unit and the external equipment respectively, and the communication unit is used for transmitting the core body temperature to the external equipment, and the external equipment is used for displaying the core body temperature.
Optionally, the measuring device further comprises: binding bands; the heat insulation module, the control module and the detection module arranged in the heat insulation module are all arranged in the bandage, and when the bandage is worn on the surface of the chest, the first sensor is abutted against the surface of the chest.
Based on above-mentioned optional mode, the measuring device of bandage formula is convenient for the user and dresses, and simultaneously, when wearing the bandage on the thorax surface, first sensor can hug closely testee's thorax surface and quick carries out heat-conduction to the heat-conducting layer to accurately gather testee's body surface temperature and the inside temperature of heat-conducting layer.
In a third aspect, an embodiment of the present application provides a terminal device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the method according to any one of the first aspect is implemented.
In a fourth aspect, the present application provides a computer-readable storage medium, which stores a computer program, and when executed by a processor, the computer program implements the method according to any one of the above first aspects.
In a fifth aspect, the present application provides a computer program product, which when run on a terminal device, causes the terminal device to execute the method of any one of the above first aspects.
It is understood that the beneficial effects of the second aspect to the fifth aspect can be referred to the related description of the first aspect, and are not described herein again.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a core body temperature measurement device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a detection module according to an embodiment of the present application;
FIG. 3 is a schematic structural view of an insulation module according to an embodiment of the present application;
FIG. 4 is a schematic structural view of a core body temperature measurement device disposed on a chest surface of a subject according to an embodiment of the present application;
FIG. 5 is a schematic flow chart of a core body temperature measurement method according to an embodiment of the present application;
FIG. 6 is a graph of experimental results of core body temperature measurement based on the core body temperature measurement method and apparatus provided by the present application according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present application;
description of reference numerals: 1. a measuring device; 11. a detection module; 111. a heat conductive layer; 112. a first sensor; 113. a second sensor; 114. a heat flow sensor; 115. a closed cell foam; 1151. a groove; 116. a first thermal barrier coating; 12. a heat insulation module; 121. a thermally insulating aerogel; 122. a second thermal barrier coating; 123. a concave cavity; 124. a protective layer; 125. a third sensor; 13. a control module; 131. a calculation unit; 132. a communication unit; 14. binding bands; 2. a subject; 21. the thoracic cavity; 3. and (5) externally connecting equipment.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
The traditional measuring methods of measuring eardrum temperature by using an infrared thermometer, measuring armpit skin temperature by using a thermometer and the like can only detect body surface temperature, and the detection result is easily influenced by external environment temperature. At present, the core body temperature of a human body is generally used as an important basis for judging the health condition of the human body in clinical medicine, and generally refers to the rectal temperature in the inner center of the human body, so that the core body temperature is not easily influenced by the external environment. The existing human body core temperature measuring methods comprise invasive measuring methods for measuring pulmonary artery blood temperature, bladder temperature and the like and noninvasive measuring methods for measuring rectal temperature, the invasive measuring methods bring discomfort to a testee, all can be realized by medical workers using professional medical equipment, and the human body core temperature cannot be continuously monitored in special environments such as fire rescue, deep sea detection and the like.
In order to solve the above technical problems, embodiments of the present application provide a core body temperature measurement method and apparatus. Set up measuring device when testee's thorax surface, first temperature sensor and thorax surface contact and gather body surface temperature, the inside temperature of heat-conducting layer when second temperature sensor can gather heat-conduction, handle body surface temperature and inside temperature respectively through the prediction model of predetermineeing, can carry out the rapid prediction to the stable value of two sensors, thereby calculate human core temperature fast according to body surface prediction temperature and inside prediction temperature, shorten the measuring time of core body temperature, in order all can continuously detect human core temperature in arbitrary environment.
The technical solution of the present application is described in detail below with reference to the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
In one possible implementation, referring to fig. 1 to 4, the embodiment of the present application provides a core body temperature measurement device. The measuring device 1 comprises a detection module 11. Wherein, detection module 11 includes: a thermally conductive layer 111, a first sensor 112, a second sensor 113, and a heat flow sensor 114. When the measuring device 1 is arranged on the surface of the chest 21 of the testee 2, the first sensor 112 is used for acquiring the body surface temperature of the chest 21, the second sensor 113 is used for acquiring the internal temperature of the heat conduction layer 111, and the heat flow sensor 114 is used for acquiring the heat flow density in the heat conduction layer 111. The first sensor 112 is disposed on the side of the heat conduction layer 111 facing the thoracic cavity 21, the second sensor 113 is disposed on the side of the heat conduction layer 111 facing away from the thoracic cavity 21, and the heat flow sensor 114 is disposed between the first sensor 112 and the second sensor 113.
In one embodiment, the structure of the detection module is schematically shown in fig. 2. The detection module 11 also includes a closed cell foam 115 and a first thermal barrier coating 116. A groove 1151 is provided in the closed cell foam 115, the thermally conductive layer 111 is disposed in the groove 1151, and the second sensor 113 is in abutment with the closed cell foam 115, and the first thermal barrier coating 116 is disposed on an outer surface of the closed cell foam 115.
In one example, the first sensor 112 may have a portion embedded in the heat conduction layer 111 and another portion exposed outside the heat conduction layer 111 toward the chest cavity 21, such that when the detection module 11 is disposed on the surface of the chest cavity 21, the first sensor 112 can directly contact the epidermis of the chest cavity 21 to collect the body surface temperature. The second sensor 113 may have a portion embedded in the thermally conductive layer 111 and another portion located in the closed cell foam 115 in direct contact with the closed cell foam 115.
In another example, the heat conducting layer 111 may be a cylindrical structure, the heat flow sensor 114 is located at the center of the heat conducting layer 111, and the heat flow sensor 114, the first sensor 112, and the second sensor 113 are located in the same vertical direction. The distance between the thermal flow sensor 114 and the first sensor 112 and the distance between the thermal flow sensor 114 and the second sensor 113 are the same, and the thermal flow sensor 114 can detect the thermal flow state in the heat conduction layer 111 in real time. Illustratively, the heat conductive layer 111 may be a PDSM-like skin layer, for example, the material of the heat conductive layer 111 may be polydimethylsiloxane, which has a thermal conductivity approximately equal to that of human skin tissue.
In another possible implementation, in order to improve the thermal insulation performance of the measuring device 1 and reduce the influence of the external environment on the data collected by the sensor, a thermal insulation module 12 may be disposed outside the detection module 11. Referring to fig. 1 and 3, in one embodiment, the insulation module 12 includes: an insulating aerogel 121, and a second insulating coating 122 disposed on an outer surface of the insulating aerogel 121. The heat insulation module 12 is provided with a cavity 123, and the inside of the cavity 123 is also provided with the second heat insulation coating 122. The outside of the second thermal barrier coating 122 is provided with a third sensor 125, and the third sensor 125 is used for acquiring the ambient temperature of the environment where the subject 2 is located. Wherein the size of the cavity 123 is adapted to the size of the detection module 11, and the detection module 11 can be disposed in the cavity 123. For example, in the present embodiment, the detection module 11 has a cylindrical structure, and the cavity 123 may have a circular shape.
The second thermal barrier coating 122 is provided with a protective layer 124 on the side facing the thorax 21. Generally, the hardness of the second thermal barrier coating 122 is relatively high, when the measuring device 1 is disposed on the surface of the thoracic cavity 21, the second thermal barrier coating 122 directly contacts with the skin and causes discomfort to the subject 2, and the protective layer 124 may be a material (such as a silicone product) with relatively good softness, so as to improve the comfort of the measuring device 1.
Reference is made to the schematic structural diagram of the measuring device 1 shown in fig. 1. The measurement device 1 provided by the present application further comprises a control module 13. The control module 13 includes a calculation unit 131 and a communication unit 132. The calculating unit 131 is connected to the first sensor 112, the second sensor 113, the third sensor 125, and the heat flow sensor 114. The calculating unit 131 may determine the core body temperature of the subject 2 according to the body surface temperature collected by the first sensor 112, the internal temperature collected by the second sensor 113, the ambient temperature collected by the third sensor 125, the heat flux density collected by the heat flux sensor 114, and a preset core body temperature measuring method.
The communication unit 132 is connected with the computing unit 131 and the external device 3, the communication unit 132 can acquire the core body temperature from the computing unit 131, and then transmit the core body temperature to the external device 3, and the external device 3 is used for displaying the core body temperature. On the other hand, the communication unit 132 may further acquire the body surface temperature, the internal temperature, the ambient temperature, and the internal temperature from the calculation unit 131, and transmit these temperature values to the external device 3.
In one example, the computing unit 131 may be connected to the first sensor 112, the second sensor 113, the third sensor 125, the heat flow sensor 114, and the communication unit 132 through wires, respectively. The external device 3 and the communication unit 132 may perform data transmission by a wired connection method or a wireless connection method. For example, the external device 3 may be a bluetooth receiving device, and the communication unit 132 may be a bluetooth communication unit.
In other possible implementations, the core body temperature measurement device 1 provided herein further includes a band 14. The heat insulation module 12, the control module 13, and the detection module 11 provided in the heat insulation module 12 are all provided on the binding band 14. Referring to fig. 4, when the strap 14 is worn on the surface of the chest cavity 21, the first sensor 112 abuts the surface of the chest cavity 21. Illustratively, both the side of the thermal insulation module 12 facing away from the chest cavity 21 and the control module 13 may be crimped (i.e., pressed together by the elastic pyrogen adhesive under high temperature and high pressure) onto the strap 14. The material of strap 14 may be a sweat resistant and mold resistant material.
The embodiment of the application also provides a core body temperature measuring method, which can be applied to the core body temperature measuring device arranged on the surface of the chest cavity of the testee provided by the embodiment and can also be applied to any body temperature measuring device with multilayer multi-material heat insulation and preservation effects.
The core body temperature measurement method provided by the embodiment of the present application is exemplarily described below with reference to a flowchart of the core body temperature measurement method shown in fig. 5 and the core body temperature measurement device provided by the above embodiment.
In a possible implementation manner, the core body temperature measurement method provided in this embodiment includes the following steps:
s401, obtaining measurement data, wherein the measurement data comprises: the first sensor collects the body surface temperature of the thoracic cavity and the second sensor collects the internal temperature of the heat conduction layer.
Specifically, when the measurement device is worn on the surface of the chest of a subject, the first sensor is located on the side of the heat conduction layer facing the chest and the second sensor is located on the side of the heat conduction layer facing away from the chest. The first sensor may be in direct contact with the epidermis of the thorax to collect the body surface temperature of the subject. After the heat conduction layer is in contact with the human body, the human body can conduct heat to the heat conduction layer, and the second sensor can acquire the internal temperature of the heat conduction layer.
S402, respectively inputting the body surface temperature and the internal temperature into a preset prediction model for processing to obtain the body surface predicted temperature and the internal predicted temperature.
It should be noted that the process of transferring heat to the heat conductive layer by the human body takes a long time, and thus. It also takes a long time for the temperature collected by the sensor to reach a stable value. This application utilizes the sensor to be the characteristic that the change process of stable temperature is the exponential change from initial temperature, inputs body surface temperature and inside temperature respectively into the prediction model of predetermineeing earlier, obtains body surface prediction temperature and inside prediction temperature to the stable temperature value of the first sensor of fast prediction and the stable temperature value of second sensor.
For example, the predictive model may be represented as:
Tfit(i)＝T(i)+k×[T(2)-T(1)]×(ea×i-e400a)
wherein, Tfit(i) And (b) represents the predicted temperature, T (i) represents the temperature collected at the ith sampling moment, i is a positive integer greater than 2, T (2) represents the temperature collected at the 2 nd sampling moment, T (1) represents the temperature collected at the 1 st sampling moment, and k and alpha are constant parameters. As is exemplary. The interval between two adjacent sampling instants may be 5 seconds.
The body surface temperature collected at the ith sampling moment, the body surface temperature collected at the 2 nd sampling moment and the body surface temperature collected at the 1 st sampling moment are input into the preset prediction model, so that the body surface predicted temperature predicted at the ith sampling moment can be determined. The internal temperature collected at the ith sampling time, the internal temperature collected at the 2 nd sampling time, and the internal temperature collected at the 1 st sampling time are input into the preset prediction model, so that the predicted internal predicted temperature at the ith sampling time can be determined.
And S403, determining the core body temperature of the testee according to the body surface predicted temperature and the internal predicted temperature.
In one embodiment, the body surface predicted temperature and the internal predicted temperature can be input into a traditional human body core body temperature model for processing, and the core body temperature of the testee is determined. The traditional human body core body temperature model is obtained by calibrating and fitting a hot plate simulating a human body temperature heat generating mechanism. The traditional human core body temperature model can be expressed as:
wherein, TcIndicating core body temperature, Td_Indicating the predicted temperature, T, of the body surfaceu_Indicating the internal predicted temperature, RpDenotes the thermal conductivity of the heat-conducting layer, RtRepresenting the thermal conductivity of human tissue.
In another embodiment, the core body temperature of the subject may be affected by the ambient temperature and the thermal conductivity of the thermally conductive layer. Therefore, the traditional human body core body temperature model can be corrected according to the parameters such as the environment temperature of the testee collected by the third sensor, the heat flow density of the heat conduction layer and the like, so that the accuracy of the measurement result of the human body core body temperature is improved.
Therefore, the body surface predicted temperature, the internal predicted temperature, the environment temperature and the heat flux density can be input into a preset core body temperature optimization model for processing, and the core body temperature of the testee is obtained. The core body temperature optimization model can be expressed as:
wherein, TcIndicating core body temperature, Td_Indicating the predicted temperature, T, of the body surfaceu_Indicating the internal predicted temperature, TambDenotes the ambient temperature, RpDenotes the thermal conductivity of the heat-conducting layer, RtRepresenting the thermal conductivity, R, of human tissueisoRepresents the thermal conductivity of the thermal insulation module disposed outside the detection module (which may be, for example, the thermal conductivity of the thermal insulation aerogel in the thermal insulation module), aiso_mDenotes the external surface area of the insulation module, AsDiameter of the detection module (the detection module is in a cylinder structure), UtfDenotes the heat flow density, KtfIs a constant.
Fig. 6 is a graph showing the result of an experiment performed by the core body temperature detection method and apparatus according to the embodiment of the present application to measure the core body temperature of a subject. In FIG. 6, TuRepresenting the predicted T, of the internal temperature, acquired by the second sensor 113uThe internal temperature is an internal predicted temperature obtained by inputting the internal temperature into a preset prediction model for processing. T isdRepresenting the predicted T, the body surface temperature acquired by the first sensor 112dThe body surface temperature is input into a preset prediction model to be processed to obtain the body surface predicted temperature. The test is performed in a room temperature environment and then at 2500 ths time, the test was performed by putting the test subject on a liquid-cooled garment. The core oral cavity temperature of the subject collected with an oral thermometer during the test was 36.7 ℃.
As can be seen from FIG. 6, the body surface temperature and the internal temperature collected by the sensor both increase exponentially, and both reach stable values at 1750 s. By the aid of the prediction model, the stable temperatures of the first sensor and the second sensor can be predicted quickly at initial time. Then, the core body temperature of the testee can be determined within a very short time by utilizing the core body temperature optimization model provided by the application, the error between the calculated core temperature and the oral cavity core temperature is about 0.1 ℃, and the error is small.
On the one hand, the core body temperature measuring device that this application provided with among is provided with multi-level many materials thermal-insulated heat preservation module, wraps up the detection module in adiabatic module, can reduce the influence of external environment to the numerical value that a plurality of sensors in the detection module gathered, improves measured data's accuracy. In addition, the heat insulation module and the detection module are arranged on the binding belt, so that the measuring device can be conveniently worn on the surface of the chest cavity of the testee, the wearable measuring device is not limited by the environment, and the core body temperature of the testee can be continuously measured at any time and any place. On the other hand, the core body temperature measuring method provided by the application can be applied to any wearable measuring device, and long time is needed for the sensor to reach the stable temperature value from the initial temperature value, so after the body surface temperature collected by the first sensor and the internal temperature of the heat conduction layer collected by the second sensor are obtained, the two temperature values are respectively input into a preset prediction model for processing, and the body surface predicted temperature and the internal predicted temperature when the collection value of the sensor reaches the stable state are rapidly predicted. In addition, the traditional human body core body temperature model can be corrected according to the ambient temperature of the testee, the heat flow density of the heat conduction layer and other parameters, the interference of external environmental factors on the measurement result can be reduced, and the measurement precision of the core body temperature is improved.
Based on the same inventive concept, the embodiment of the application also provides the terminal equipment. As shown in fig. 7, the terminal device 5 of this embodiment includes: a processor 501, a memory 502, and a computer program 504 stored in the memory 502 and executable on the processor 501. The computer program 504 may be executed by the processor 501 to generate instructions 503, and the processor 501 may implement the steps in the core body temperature detection method embodiment according to the instructions 503.
Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the above method embodiments.
The embodiment of the present application further provides a computer program product, which when running on a terminal device, enables the terminal device to implement the steps in the foregoing method embodiments when executed.
The integrated unit may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, all or part of the processes in the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium and can implement the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable storage medium may include at least: any entity or device capable of carrying computer program code to a photographing apparatus/terminal apparatus, a recording medium, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signal, telecommunication signal, and software distribution medium. Such as a usb-disk, a removable hard disk, a magnetic or optical disk, etc.
Reference throughout this application to "one embodiment" or "some embodiments," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.
In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. It should also be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
In addition, in the present application, unless otherwise explicitly specified or limited, the terms "connected," "connected," and the like are to be construed broadly, e.g., as meaning both mechanically and electrically; the terms may be directly connected or indirectly connected through an intermediate medium, and may be used for communicating between two elements or for interacting between two elements, unless otherwise specifically defined, and the specific meaning of the terms in the present application may be understood by those skilled in the art according to specific situations.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The core body temperature measuring method is applied to a measuring device arranged on the surface of the chest of a testee, the measuring device comprises a detection module, the detection module comprises a heat conduction layer, a first sensor is arranged on one side, facing the chest, of the heat conduction layer, and a second sensor is arranged on one side, facing away from the chest, of the heat conduction layer;
the method comprises the following steps:
obtaining measurement data, the measurement data comprising: the body surface temperature of the chest cavity acquired by the first sensor and the internal temperature of the heat conduction layer acquired by the second sensor;
respectively inputting the body surface temperature and the internal temperature into a preset prediction model for processing to obtain a body surface predicted temperature and an internal predicted temperature;
and determining the core body temperature of the testee according to the body surface predicted temperature and the internal predicted temperature.
2. The measurement method according to claim 1, wherein the predictive model is:
Tfit(i)＝T(i)+k×[T(2)-T(1)]×(ea×i-e400a)
wherein, Tfit(i) The temperature is predicted, T (i) represents the temperature collected at the ith sampling moment, i is a positive integer greater than 2, T (2) represents the temperature collected at the 2 nd sampling moment, T (1) represents the temperature collected at the 1 st sampling moment, k and alpha are constant parameters, and the interval between two adjacent sampling moments is 5 seconds.
3. The measuring method according to claim 1 or 2, characterized in that the measuring device further comprises a third sensor, the heat conducting layer being internally provided with a heat flow sensor;
the measurement data further includes: the environment temperature of the environment where the testee is located and the heat flow density in the heat conduction layer, which are acquired by the third sensor, are acquired by the heat flow sensor;
the determining the core body temperature of the subject according to the body surface predicted temperature and the internal predicted temperature comprises:
and inputting the body surface predicted temperature, the internal predicted temperature, the environment temperature and the heat flux density into a preset core body temperature optimization model for processing to obtain the core body temperature of the testee.
4. The measurement method according to claim 3, wherein the core body temperature optimization model is:
wherein, TcRepresenting the core body temperature, Td_Representing the predicted temperature, T, of the body surfaceu_Representing said internal predicted temperature, TambDenotes the ambient temperature, RpDenotes the thermal conductivity, R, of the thermally conductive layertRepresenting the thermal conductivity, R, of human tissueisoDenotes the thermal conductivity of an adiabatic block arranged outside the detection block, Aiso_mDenotes the external surface area of the insulation module, AsRepresents the diameter, U, of the detection moduletfRepresents the heat flow density, KtfIs a constant.
5. A core body temperature measuring device, characterized in that the measuring device (1) comprises: a detection module (11) and a control module (13), the detection module (11) comprising: a heat conductive layer (111), a first sensor (112), a second sensor (113), and a heat flow sensor (114);
when the measuring device (1) is arranged on the surface of the chest cavity (21) of a testee (2), the first sensor (112) is used for acquiring the body surface temperature of the chest cavity (21), the second sensor (113) is used for acquiring the internal temperature of the heat conduction layer (111), and the heat flow sensor (114) is used for acquiring the heat flow density in the heat conduction layer (111);
-the first sensor (112) is arranged on a side of the heat conduction layer (111) facing towards the chest (21), -the second sensor (113) is arranged on a side of the heat conduction layer (111) facing away from the chest (21), -the heat flow sensor (114) is arranged between the first sensor (112) and the second sensor (113), -the control module (13) is adapted to perform the method of any of claims 1 to 4 for determining the core body temperature of the subject (2).
6. The measuring device according to claim 5, characterized in that the detection module (11) further comprises: a closed cell foam (115) and a first thermal barrier coating (116);
a groove (1151) is disposed on the closed cell foam (115), the thermally conductive layer (111) is disposed in the groove (1151), the second sensor (113) abuts the closed cell foam (115), and the first thermal barrier coating (116) is disposed on an outer surface of the closed cell foam (115).
7. The measuring device according to claim 6, characterized in that the measuring device (1) further comprises an adiabatic module (12), the adiabatic module (12) comprising: an insulating aerogel (121) and a second insulating coating (122) disposed on an outer surface of the insulating aerogel (121);
a cavity (123) is formed in the heat insulation module (12), the detection module (11) is arranged in the cavity (123), and a protective layer (124) is arranged on one side, facing the chest cavity (21), of the second heat insulation coating (122);
a third sensor (125) is arranged on the second thermal barrier coating (122), and the third sensor (125) is used for acquiring the ambient temperature of the environment where the testee (2) is located.
8. The measuring device according to claim 7, characterized in that the control module (13) comprises: a calculation unit (131) and a communication unit (132);
the computing unit (131) is respectively connected with the first sensor (112), the second sensor (113), the third sensor (125) and the heat flow sensor (114), and the computing unit (131) is used for determining the core body temperature;
the communication unit (132) respectively with the computational element (131) is connected with external device (3), communication unit (132) are used for with the core body temperature transmits for external device (3), external device (3) are used for showing the core body temperature.
9. The measuring device according to any of the claims 5 to 8, characterized in that the measuring device (1) further comprises: a binding band (14);
the heat insulation module (12), the control module (13) and the detection module (11) arranged in the heat insulation module (12) are all arranged on the bandage (14), and when the bandage (14) is worn on the surface of the chest cavity (21), the first sensor (112) is abutted to the surface of the chest cavity (21).
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111355536.1A CN114235210A (en) | 2021-11-16 | 2021-11-16 | Core body temperature measuring method and device |
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210275030A1 (en) * | 2020-03-06 | 2021-09-09 | Verily Life Sciences Llc | Core temperature estimation from skin and ambient temperature sensors using a dynamic model |
| CN116026493A (en) * | 2022-06-30 | 2023-04-28 | 荣耀终端有限公司 | Core body temperature detection method and electronic equipment |
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2021
- 2021-11-16 CN CN202111355536.1A patent/CN114235210A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210275030A1 (en) * | 2020-03-06 | 2021-09-09 | Verily Life Sciences Llc | Core temperature estimation from skin and ambient temperature sensors using a dynamic model |
| CN116026493A (en) * | 2022-06-30 | 2023-04-28 | 荣耀终端有限公司 | Core body temperature detection method and electronic equipment |
| CN116026493B (en) * | 2022-06-30 | 2024-04-05 | 荣耀终端有限公司 | Core body temperature detection method and electronic equipment |
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