KR20210121359A - Body temperature correction system and method for each body part considering external temperature effect - Google Patents

Abstract

The present invention relates to a body temperature correction system for each body part considering an external temperature influence and a method thereof for providing an accurate body temperature by correcting a body temperature measured for each body part considering the external temperature influence. According to the present invention, the body temperature correction system comprises: an external temperature influence calculating unit that calculates the external temperature influence according to a difference between a skin temperature and an external temperature at a time of measuring the body temperature for each body part; and a body temperature correcting unit that calculates a corrected body temperature of the body temperature for each body part from a correlation between the body temperature for each body part and the external temperature influence.

Description

{Body temperature correction system and method for each body part considering external temperature effect}

The present invention relates to a body temperature measurement system and method, and more particularly, to a body temperature correction system and method capable of providing a more accurate body temperature by correcting the body temperature measured for each body part in consideration of the influence of external temperature.

In general, methods and areas for measuring body temperature on a human body are very diverse. In order to know the most accurate body temperature, there is a method to measure the core body temperature. The core body temperature measurement method is a method of measuring body temperature in a blood vessel carpeter. The core body temperature measurement method is very invasive, so it is only applied to critically ill patients. In general, in daily life, body temperature is measured using axillary, rectal, tympanic, and forehead thermometers.

The axillary thermometer is a method used in infants and early children, and it may not be able to properly detect the heat of the hyperthermic group and the discomfort of having to hold the arm tightly to the chest for a certain period of time.

A rectal thermometer is only used when the subject is unconscious, has seizures, or cannot keep his mouth shut.

The eardrum thermometer is a convenient and minimally invasive method because it measures the heat of blood flowing around the eardrum using infrared technology. The eardrum thermometer is the most preferred method in hospital clinical settings, but has a disadvantage that errors may occur depending on the measurement method of the person and the body structure of the measurement target.

Recently, in the case of a forehead thermometer based on infrared technology, the temperature measurement time is the shortest, convenient, and the risk of infection is low, so it is used as a useful method in hospitals and the like.

Each of these various methods has advantages and limitations, but all methods have a common problem in that they are affected by external environments such as heat or light. That is, when the body is exposed to the influence of external temperature, the skin of the body responds to this, and as a result of this reaction, the temperature of each measurement part changes. Such external temperature influence eventually acts as a factor causing a large error in body temperature measurement.

Unexamined Patent Publication No. 2020-0021711 (published on March 2, 2020)

Accordingly, it is an object of the present invention to provide a body temperature correction system and method for each body part in consideration of the external temperature effect, which can provide a more accurate body temperature by correcting a body temperature measurement error due to the external temperature influence.

Another object of the present invention is to provide a body temperature correction system and method for each body part in consideration of the influence of external temperature that can be corrected by measuring and correcting the body temperature continuously for a long time rather than a temporary body temperature measurement.

Another object of the present invention is to provide a system and method for correcting body temperature for each body part in consideration of the influence of external temperature, which provides information on the influence of external temperature over a long period of time.

In order to achieve the above object, the present invention provides an external temperature influence calculator for calculating the external temperature influence according to the difference between the skin temperature and the external temperature at the time of measuring the body temperature for each body part; and a body temperature correction unit for calculating a corrected body temperature with respect to the body temperature for each body part from the correlation between the body temperature for each body part and the influence of the external temperature.

A body temperature correction system according to the present invention includes: a body temperature measuring unit for measuring and outputting body temperature for each body part; and a temperature measuring unit attached to the skin to measure the skin temperature and the external temperature.

The external temperature influence calculation unit may time-synchronize the skin temperature and the external temperature to calculate the external temperature influence according to the difference between the skin temperature and the external temperature.

The body temperature compensator, upon receiving the body temperature measured by the body part body temperature measuring unit, requests and receives the skin temperature effect at the time of measuring the body part body temperature from the external temperature influence calculation unit, and the The corrected body temperature may be calculated from the correlation between the body temperature for each body part and the influence of the external temperature.

The temperature measuring unit may include: a flexible base film having a first base film and a second base film connected to the first base film and bent over the first base film; a skin temperature sensor mounted on the lower surface of the first base film, the skin temperature sensor being in contact with the skin to measure the skin temperature; and an external temperature sensor mounted on the upper surface of the second base film and measuring an external temperature.

The correlation between the body temperature for each body part and the influence of external temperature may be modeled using matlab.

The body temperature measuring unit for each body part may measure the body temperature of at least one of a chest, a forehead, an armpit, an ear, and an earlobe.

The present invention also provides a thermometer for each body part that measures and outputs body temperature for each body part; a flexible temperature sensor module attached to the skin to measure the skin temperature and the external temperature, and time-synchronize the skin temperature and the external temperature to calculate the external temperature effect according to the difference between the skin temperature and the external temperature; and when the body part body temperature measured from the body part thermometer is received, the skin temperature effect at the time the body part body temperature is measured is requested from the flexible temperature sensor module and received, and the body part body temperature and external temperature are received. It provides a body temperature correction system for each body part in consideration of the influence of external temperature including; a management terminal for calculating the corrected body temperature from the correlation of the influence.

The flexible temperature sensor module includes: a flexible base film having a first base film and a second base film connected to the first base film and bent over the first base film; a skin temperature sensor mounted on the lower surface of the first base film, the skin temperature sensor being in contact with the skin to measure body temperature; an external temperature sensor mounted on the upper surface of the second base film and measuring an external temperature; and the skin temperature sensor is mounted on the first base film to be spaced apart from the region of the first base film to which the skin temperature sensor is attached, receives the skin temperature measured from the skin temperature sensor, and receives the external temperature measured from the external temperature sensor and a controller configured to time-synchronize the skin temperature and the external temperature to calculate an external temperature effect according to the difference between the skin temperature and the external temperature.

And the present invention comprises the steps of calculating the effect of external temperature according to the difference between the skin temperature and the external temperature at the time of measuring the body temperature for each body part; and calculating the corrected body temperature from the correlation between the body temperature for each body part and the influence of external temperature.

And calculating the effect of the external temperature may include: measuring a skin temperature and an external temperature; calculating an external temperature effect by time-synchronizing the measured skin temperature and external temperature; and extracting the effect of skin temperature at the time of measuring the body temperature for each body part.

According to the present invention, it is possible to provide a more accurate body temperature by correcting the body temperature measured for each body part in consideration of the influence of external temperature. In other words, by calculating the external temperature effect according to the difference between the skin temperature and the external temperature at the time of measuring body temperature for each body part, and correcting the measured body temperature for each body part in consideration of the calculated external temperature influence, more accurate body temperature information is obtained. can provide

Since the present invention can continuously provide information on the influence of external temperature over a long period of time through a flexible temperature sensor module that is attached to the skin and used, correction of body temperature measured for each body part at a specific point in time can be performed immediately. .

The flexible temperature sensor module according to the present invention can be implemented as a patch-type wearable device that can be attached to various parts of the body. can be provided continuously.

In addition, the present invention utilizes a flexible temperature sensor module that attaches to the skin of a subject to be measured and provides information on the influence of external temperature over a long period of time, so that it is possible to continuously measure the body temperature of the subject in daily life. Due to this, it is possible to record the temperature of the subject for a long time during social chaos such as the recent corona epidemic, so it is expected that it can be used to determine the diagnosis while preventing the spread of the medical staff.

1 is a block diagram showing a body temperature correction system for each body part in consideration of the influence of external temperature according to the present invention.
2 is a block diagram showing a body temperature correction system for each body part in consideration of the influence of external temperature according to an embodiment of the present invention.
3 is a block diagram showing the flexible temperature sensor module of FIG.
4 is a plan view showing a lower surface of the flexible temperature sensor module according to an embodiment of the present invention.
5 is a plan view showing the upper surface of the flexible temperature sensor module according to an embodiment of the present invention.
6 is a cross-sectional view showing a flexible temperature sensor module according to an embodiment of the present invention, a cross-sectional view showing a state in which the second base film is bent on the first base film.
7 is a flowchart illustrating a method for correcting body temperature for each body part in consideration of the influence of external temperature according to an embodiment of the present invention.
FIG. 8 is a detailed flowchart of the step of calculating the external temperature effect of FIG. 7 .
9 is a table showing body temperature measured by a flexible temperature sensor module and a thermometer for each body part.
FIG. 10 is a three-dimensional graph showing the correlation between the influence of the external temperature of FIG. 9, the forehead (forehead) measurement temperature, and the core temperature.
11 is a three-dimensional graph showing the correlation between the influence of the external temperature of FIG. 9, the measured temperature of the lobe, and the temperature of the core.
12 is a three-dimensional graph showing the correlation between the influence of the external temperature of FIG. 9, the measured temperature of the armpit, and the temperature of the core.

It should be noted that, in the following description, only parts necessary for understanding the embodiments of the present invention are described, and descriptions of other parts will be omitted without departing from the gist of the present invention.

The terms or words used in the present specification and claims described below should not be construed as being limited to their ordinary or dictionary meanings, and the inventors have appropriate concepts of terms in order to best describe their inventions. It should be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined in Accordingly, the embodiments described in this specification and the configurations shown in the drawings are only preferred embodiments of the present invention, and do not represent all of the technical spirit of the present invention, so various equivalents that can be substituted for them at the time of the present application It should be understood that there may be variations and variations.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

[Body temperature correction system]

1 is a block diagram showing a body temperature correction system for each body part in consideration of the influence of external temperature according to the present invention.

Referring to FIG. 1 , the body temperature correction system 400 (hereinafter referred to as 'body temperature correction system') considering the influence of external temperature according to the present invention corrects the body temperature measured for each body part in consideration of the influence of external temperature. It is a system that provides accurate body temperature.

The body temperature compensation system 400 according to the present invention includes an external temperature effect calculation unit 95 and a body temperature compensation unit 97 . The external temperature influence calculation unit 95 calculates the external temperature influence according to the difference between the skin temperature and the external temperature at the time of measuring the body temperature for each body part. Then, the body temperature correction unit 97 calculates the corrected body temperature with respect to the body temperature for each body part from the correlation between the body temperature for each body part and the influence of the external temperature.

In addition, the body temperature correction system 400 according to the present invention may further include a body temperature measuring unit 91 and a temperature measuring unit 93 for each body part.

The body temperature measurement unit 91 for each body part measures and outputs the body temperature for each body part. At this time, the body temperature measuring unit 91 for each body part measures and outputs the body temperature of at least one of the chest, forehead, armpit, ear, and earlobe.

The temperature measuring unit 93 is attached to the skin to measure the skin temperature and the external temperature. The temperature measuring unit 93 may be implemented as a wearable device of a patch type that can be attached to the skin. The temperature measuring unit 93 measures the skin temperature through the surface attached to the skin, and measures the external temperature through the surface facing the outside opposite to the skin.

Here, the external temperature means a temperature applied to the skin by an external heat-affecting factor that affects the skin thermally by the external environment, for example, sunlight, solar heat, outdoor temperature, heating and cooling facilities in a building, clothing, bedding, and the like. The skin temperature is the body temperature detected from the skin in which the external temperature by the external heat-affecting factor is reflected.

Therefore, it is preferable that the temperature measuring unit 93 measures the external temperature at the upper part of the part for measuring the skin temperature.

The external temperature influence calculation unit 95 time-synchronizes the skin temperature and the external temperature measured by the temperature measuring unit 93 to calculate the external temperature influence according to the difference between the skin temperature and the external temperature.

Here, the influence of the external temperature can be expressed by Equation 1.

When the external temperature is lower than the skin temperature, the external temperature influence has a negative value. Conversely, when the external temperature is higher than the skin temperature, the influence of the external temperature has a (+) value.

In addition, when the body temperature correction unit 97 receives the body temperature measured by the body part body temperature measurement unit 93, the external temperature influence calculation unit 95 calculates the skin temperature effect at the time when the body part body temperature is measured. Request and receive The body temperature correction unit 97 calculates the corrected body temperature from the correlation between the body temperature for each body part and the influence of the external temperature.

Here, the correlation between the body temperature and the influence of external temperature for each body part can be modeled using a matlab, and can be expressed by an equation such as Equation (2).

[Equation 2]

f(x,y) = p00 + p10*x + p01*y + p20*x^2 + p11*x*y + p02*y^2 + p30*x^3 + p21*x^2*y + p12 *x*y^2 + p03*y^3 + p40*x^4 + p31*x^3*y + p22*x^2*y^2 + p13*x*y^3 + p04*y^4 + p50*x^5 + p41*x^4*y + p32*x^3*y^2 + p23*x^2*y^3 + p14*x*y^4 + p05*y^5

f(x,y) : corrected body temperature

pnm : coefficient (n is one of 0, 1, 2, 3, 4 and 5, m is one of 0, 1, 2, 3, 4 and 5)

x: external temperature influence

y: body temperature by body part

where X^z and Y^z, where z is one of 2, 3, 4, and 5, represent X to the z-th power (X ^z ) and Y to the z-square (Y ^z ).

pnm is a coefficient determined by modeling the correlation between body temperature and external temperature effects for each body part using matlab.

The modeling of the correlation according to Equation 2 will be described later.

The body temperature compensation system 400 according to the present invention may be implemented in the embodiments shown in FIGS. 2 to 6 , but is not limited thereto.

2 is a block diagram illustrating a body temperature correction system 400 for each body part in consideration of the influence of external temperature according to an embodiment of the present invention.

Referring to FIG. 2 , the body temperature compensation system 400 according to the present embodiment includes a body part thermometer 300 , a flexible temperature sensor module 100 , and a management terminal 200 .

The thermometer 300 for each body part measures and outputs the body temperature for each body part. The body part thermometer 300 measures the body temperature of at least one body part among chest, forehead, armpit, ear, and earlobe. The thermometer 300 for each body part may correspond to a body temperature measuring unit for each body part.

The flexible temperature sensor module 100 is attached to the skin to measure the skin temperature and the external temperature, and time-synchronizes the skin temperature and the external temperature to calculate the external temperature effect according to the difference between the skin temperature and the external temperature. The flexible temperature sensor module 100 may be a temperature sensor implemented in a flexible patch type. This flexible temperature sensor module 100 includes a temperature measurement unit and an external temperature effect calculation unit.

And when the management terminal 200 receives the body temperature for each body part measured from the body part thermometer 300, the skin temperature effect at the time the body part body temperature is measured from the flexible temperature sensor module 100 is requested and received. do. The management terminal 200 calculates the corrected body temperature from the correlation between the body temperature for each body part and the influence of the external temperature. The management terminal 200 is a communication terminal used by an administrator, and may be, for example, a PC, a smart phone, a notebook computer, a tablet PC, a dedicated terminal, a server, or the like. The management terminal 200 may correspond to a body temperature compensator.

Here, communication may be performed between the thermometer 300 for each body part, the flexible temperature sensor module 100 and the management terminal 200 in a wireless communication method. As the wireless communication method, a short-range wireless communication method may be used. As the short-range wireless communication method, Bluetooth, Bluetooth Low Energy (BLE), WiFi, Zig bee, or Near Field Communication (NFC) may be used.

Meanwhile, although the present embodiment discloses an example in which the management terminal 200 performs the function of the body temperature compensator, it is not limited thereto.

For example, the flexible temperature sensor module 100 may include a temperature measurement unit, an external temperature effect calculation unit, and a body temperature correction unit. That is, when the flexible temperature sensor module 100 receives the body temperature measured for each body part from the thermometer 300 for each body part, the effect of the skin temperature at the time of measuring the body part body temperature is extracted. The flexible temperature sensor module 100 may calculate the corrected body temperature from the correlation between the body temperature for each body part and the influence of external temperature. The flexible temperature sensor module 100 may transmit the calculated corrected body temperature to the management terminal 200 .

Alternatively, the thermometer 300 for each body part may include a body temperature measuring unit and a body temperature correcting unit. That is, when the body part thermometer 300 measures the body part body temperature, it requests and receives the skin temperature effect from the flexible temperature sensor module 100 at the time the body part body temperature is measured. The thermometer 300 for each body part calculates the corrected body temperature from the correlation between the body part body temperature and the influence of external temperature. The thermometer 300 for each body part may transmit the calculated corrected body temperature to the management terminal 200 .

Alternatively, the thermometer 300 for each body part may include a body temperature measuring unit for each body part, an external temperature influence calculating unit, and a body temperature correcting unit. That is, when the body part-specific thermometer 300 measures the body part body temperature, the flexible temperature sensor module 100 requests and receives the skin temperature and the external temperature at the time of measuring the body part body temperature. The thermometer 300 for each body part time-synchronizes the skin temperature and the external temperature to calculate the effect of the external temperature according to the difference between the skin temperature and the external temperature. The thermometer 300 for each body part calculates the corrected body temperature from the correlation between the body part body temperature and the influence of external temperature. The thermometer 300 for each body part may transmit the calculated corrected body temperature to the management terminal 200 .

Alternatively, the flexible temperature sensor module 100 may include a temperature measurement unit, and the management terminal 200 may include an external temperature effect calculation unit and a body temperature correction unit. That is, when the management terminal 200 receives the body temperature for each body part measured from the body part body part body temperature measurement unit, it requests the skin temperature and the external temperature at the time the body part body temperature is measured to the flexible temperature sensor module 100 . receive The management terminal 200 time-synchronizes the skin temperature and the external temperature to calculate the effect of the external temperature according to the difference between the skin temperature and the external temperature. In addition, the management terminal 200 may calculate the corrected body temperature from the correlation between the body temperature for each body part and the influence of the external temperature.

The flexible temperature sensor module 100 according to this embodiment will be described with reference to FIGS. 3 to 6 as follows.

3 is a block diagram showing the flexible temperature sensor module 100 of FIG.

Referring to FIG. 3 , the flexible temperature sensor module 100 according to this embodiment includes flexible base films 10 and 30 and a skin temperature sensor 50 . The base films 10 and 30 have a mounting region 15 on which the skin temperature sensor 50 is to be mounted, and heat conduction blocking slots 17 and 19 for blocking heat conduction to the mounting region 15 are formed. And the skin temperature sensor 50 is mounted on the mounting region 15 of the base films 10 and 30 and is in contact with the skin to measure the skin temperature. In addition, the flexible temperature sensor module 100 according to this embodiment may further include an external temperature sensor 60 , a ground layer 40 , and a heat-generating element 70 .

As such, the flexible temperature sensor module 100 according to this embodiment forms the heat conduction blocking slots 17 and 19 around the skin temperature sensor 50, so that the skin temperature sensor 50 riding on the base films 10 and 30. can block heat conduction. That is, it is possible to reduce the influence of internal heat-affecting factors with the heat conduction blocking slots 17 and 19 .

First, looking at the internal heat-affecting factors, the heat conduction effect in the printed circuit board including the base films 10 and 30 is the skin around the skin temperature sensor 50 through the ground layer 40 or the electrode layer in the printed circuit board. Heat generated during driving of the heat-generating element 70 may be conducted to the skin temperature sensor 50 to affect the measured body temperature.

Therefore, in order to block the heat effect due to the internal heat-affecting factor, in the present embodiment, the heat conduction blocking slots 17 and 19 are formed.

The heat conduction blocking slots 17 and 19 have a guard slot 17 formed in the base film 10 and 30 along the circumference of the skin temperature sensor 50, and a mounting area 15 on which the skin temperature sensor 50 is mounted. At least one of the boundary slots 19 formed in the boundary portion of the region where the ground layer 40 is formed may be included. The boundary slot 19 includes at least one of a first boundary slot 21 formed in the base films 10 and 30 and a second boundary slot 23 formed in the ground layer 40 . In this embodiment, an example in which the guard slot 17 and the boundary slot 19 are formed together, and the first and second boundary slots 21 and 23 are formed together has been disclosed.

The base films 10 and 30 include a first base film 10 and a second base film 30 . The second base film 30 is connected to the first base film 10 and is bent over the first base film 10 .

Here, the skin temperature sensor 50 , the ground layer 40 , and the heat-generating element 70 are formed on the first base film 10 . And an external temperature sensor 60 is formed on the second base film 30 .

The skin temperature sensor 50 is mounted on one side of the first base film 10 .

The ground layer 40 is formed on the first base film 10 spaced apart from the mounting area 15 on which the skin temperature sensor 50 is mounted.

The heat-generating element 70 is formed on the first base film 10 spaced apart from the mounting region 15 on which the skin temperature sensor 50 is mounted. In this case, the heat-generating element 70 may be formed in a region where the ground layer 40 is formed.

Here, the heat-generating element 70 is an element included in the flexible temperature sensor module 100 , and refers to elements capable of affecting the skin temperature sensor 50 according to an internal heat-affecting factor. The heat-generating element 70 may include a communication unit 71 , a storage unit 73 , a control unit 75 , and a power supply unit 77 .

The communication unit 71 communicates with the management terminal 200 . The communication unit 71 may use a short-range wireless communication method as a communication method with the management terminal 200 .

The storage unit 73 stores the skin temperature measured by the skin temperature sensor 50 or the external temperature measured by the external temperature sensor 60 . The storage unit 73 may store an execution program necessary for the calculation of the influence of the external temperature.

The controller 75 is a microprocessor that controls the overall operation of the flexible temperature sensor module 100 . Here, the control unit 75 transmits the temperature measured by the skin temperature sensor 50 and the external temperature sensor 60 or the temperature stored in the storage unit 73 to the management terminal 200 through the communication unit 71 . The controller 75 may calculate an external temperature effect based on the temperature measured by the skin temperature sensor 50 and the external temperature sensor 60 and transmit it to the management terminal 200 . For example, the controller 75 may calculate the effect of the external temperature by subtracting the external temperature from the measured skin temperature. The control unit 75 may transmit the calculated external temperature effect to the management terminal 200 according to the request of the management terminal 200 .

And the power supply unit 77 supplies power required for driving to the skin temperature sensor 50 , the communication unit 71 , the storage unit 73 , and the control unit 75 . The power supply unit 77 is an electrical energy storage device that can be charged and discharged multiple times, and may include, for example, at least one of a secondary battery and a supercapacitor. The power supply unit 77 may include an energy harvesting unit that collects energy around the flexible temperature sensor module 100 , for example body temperature, a wireless signal, and the like to generate electrical energy.

4 is a plan view showing a lower surface of the flexible temperature sensor module 100 according to an embodiment of the present invention. 5 is a plan view showing the upper surface of the flexible temperature sensor module 100 according to an embodiment of the present invention. And Figure 6 is a cross-sectional view showing the flexible temperature sensor module 100 according to an embodiment of the present invention, a cross-sectional view showing a state in which the second base film 30 is bent on the first base film 10 .

4 to 6, the flexible temperature sensor module 100 according to the present embodiment includes a flexible base film 10 and 30 and a skin temperature sensor 50, an external temperature sensor 60, a ground layer (40), it may further include a heat-generating element (70) and a protective layer (80).

The base films 10 and 30 are insulating films made of a flexible plastic material. Materials of the base films 10 and 30 include polyimide, polyethersulphone (PES), polyacrylate (PAR), polyetherimide (PEI), and polyethylene naphthalate (polyethyelenen). napthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyallylate, polycarbonate (PC), cellulose triacetate (CTA) or cellulose acetate Propionate (cellulose acetate propinonate; CAP) may be used, but is not limited thereto.

The base films 10 and 30 include a first base film 10 and a second base film 30 . The first and second base films 10 and 30 have upper surfaces 13 and 33, respectively, and lower surfaces 11 and 31 opposite to the upper surfaces 13 and 33, respectively. Here, since the second base film 30 is bent and positioned on the upper surface 13 of the first base film 10 , in the plan views of FIGS. 4 and 5 , the lower surface 11 of the first base film 10 . ) and the upper surface 33 of the second base film 30 are located on the same surface, and the upper surface 13 of the first base film 10 and the lower surface 31 of the second base film 30 are the same will be located on the side.

The skin temperature sensor 50 and the ground layer 40 are formed on the lower surface 11 of the first base film 10 . The skin temperature sensor 50 and the ground layer 40 are formed to be spaced apart from each other. The first base film 10 has a smoke-capable element mounted on the upper surface 13 .

The second base film 30 has an external temperature sensor 60 formed on the upper surface 33 . The second base film 30 is formed to be narrower than the first base film 10 so that it can be easily bent with respect to the first base film 10 and positioned on the first base film 10 .

When bending the second base film 30 with respect to the first base film 10, the lower surface 11 of the first base film 10 on which the skin temperature sensor 50 is mounted faces the skin, and The temperature sensor 60 is bent to face the outside. That is, after positioning the lower surface 11 of the first base film 10 and the upper surface 33 of the second base film 30 to face downward, the upper surface 13 of the first base film 10 is above The lower surface 31 of the second base film 30 is bent so that it can be positioned.

The ground layer 40 is formed on the lower surface 11 of the first base film 10, but is not limited thereto. For example, the ground layer 40 may be formed inside the first base film 10 .

The skin temperature sensor 50 is a resistance film type temperature sensor based on a platinum material, and includes an internal sensor unit 51 and an internal electrode unit 53 . The internal sensor unit 51 measures the body temperature (skin temperature) of the contacted skin. The internal electrode unit 53 is connected to the internal sensor unit 51 and transmits the measured skin temperature to the storage unit 73 or the control unit 75 . The internal electrode unit 53 may be formed of a plurality of lines, one of the plurality of lines is connected to the ground layer 40 , and the other is a storage unit 73 or control unit 75 to transmit the measured skin temperature. can be connected to

The guard slot 17 is formed to penetrate the first base film 10 around the skin temperature sensor 50 . The guard slot 17 is formed to surround the skin temperature sensor 50, and is not formed in the portion where the internal electrode part is formed. That is, the guard slot 17 is formed to surround the inner sensor unit 51 , and a portion to which the inner electrode unit 53 is connected and drawn out from the inner sensor unit 51 is open.

The border slot 19 includes a first border slot 21 and a second border slot 23 . The first boundary slots 21 may be formed on both sides with respect to the internal electrode part 53 . The second boundary slot 23 may be formed in the ground layer 40 in a form that covers the control unit 75 toward the skin temperature sensor 50 . The second boundary slot 23 is formed through the ground layer 40 and the first base film 10 .

As such, the flexible temperature sensor module 100 according to the present embodiment forms a guard slot 17 or a boundary slot 19 around the skin temperature sensor 50, so that the skin temperature sensor riding on the base films 10 and 30 It is possible to block the heat conduction with (50). That is, the influence of the internal heat-affecting factor can be reduced by using the guard slot 17 or the boundary slot 19 at the skin temperature measured by the skin temperature sensor 50 .

The heat-generating element 70 is mounted on the upper surface 13 of the first base film 10 . The heat-generating element 70 is mounted on the upper surface 13 of the first base film 10 opposite to the lower surface 11 of the first base film 10 on which the ground layer 40 is formed.

The protective layer 80 protects the heat-generating element 70 to the external environment. The protective layer 80 may be formed by laminating a protective film of a plastic resin on the upper surface 13 of the first base film 10 on which the heat-generating element 70 is mounted. Alternatively, the protective layer 80 may be formed by coating or molding a liquid plastic resin. As a material of the protective layer 80 , a plastic material capable of providing flexibility to the first base film 10 may be used, for example, at least one of the materials of the base films 10 and 30 may be used.

The second base film 30 bent over the first base film 10 may be attached on the protective layer 80 .

And the external temperature sensor 60 is mounted on the upper surface 33 of the second base substrate. The external temperature sensor 60 is a resistance film type temperature sensor based on a platinum material, and includes an external sensor unit 61 and an external electrode unit 63 . The external sensor unit 61 measures the external temperature applied to the flexible temperature sensor module 100 toward the opposite side to the skin. The external electrode unit 63 is connected to the external sensor unit 61 and transmits the measured external temperature to the storage unit 73 or the control unit 75 . The external electrode part 63 may be formed of a plurality of lines, and one of the plurality of lines is connected to the ground layer 40 , and the other is a storage part 73 or a controller 75 to transmit the measured external temperature. can be connected to

As such, the external temperature sensor 60 measures the external temperature according to the external heat-affecting factor.

[How to correct body temperature by body part considering the influence of external temperature]

The body temperature correction method using the body temperature correction system according to this embodiment will be described with reference to FIGS. 2, 7 and 8 as follows. Here, FIG. 7 is a flowchart illustrating a method for correcting body temperature for each body part in consideration of the influence of external temperature according to an embodiment of the present invention. And FIG. 8 is a detailed flowchart of the step of calculating the external temperature effect of FIG.

First, in step S10, the effect of the external temperature according to the difference between the skin temperature and the external temperature at the time of measuring the body temperature for each body part is calculated.

Then, in step S30, the corrected body temperature is calculated from the correlation between the body temperature for each body part and the influence of the external temperature.

Here, the step S10 will be described in detail as follows.

First, in step S11, the flexible temperature sensor module 100 is attached to the skin to measure the skin temperature and the external temperature.

Next, in step S13, the flexible temperature sensor module 100 time-synchronizes the measured skin temperature and the external temperature to calculate the external temperature effect according to the difference between the skin temperature and the external temperature.

And in step S15, the flexible temperature sensor module 100 extracts the effect of the skin temperature at the time of measuring the body temperature for each body part with the thermometer 300 for each body part among the calculated external temperature effects and transmits it to the management terminal 200. . That is, when the flexible temperature sensor module 100 receives a signal requesting the effect of the skin temperature at the time of measuring the body temperature for each body part from the management terminal 200, the time point at which the body temperature for each body part is measured among the calculated skin temperature effects. The skin temperature effect is extracted and transmitted to the management terminal 200 .

Subsequently, in step S30 , the management terminal 200 calculates the corrected body temperature from the correlation between the body temperature for each body part and the influence of the external temperature. In this case, the management terminal 200 may calculate the corrected body temperature from the correlation equation according to Equation 2 .

[Correlation Modeling]

As described above, a method of modeling the correlation between body temperature for each body part and the influence of external temperature according to the present embodiment will be described with reference to FIGS. 9 to 12 .

The flexible temperature sensor module was implemented as a patch type and attached to the chest of the subject to measure the skin temperature and external temperature in units of 1 minute for 12 hours, and the effect of the skin temperature was calculated.

And in the process of performing daily activities of the subject to which the flexible temperature sensor module is attached, the temperature of the forehead, armpit, ear, and lobe is measured with a thermometer for each body part in 30-minute increments. Measurements were made periodically. In this case, a commercial thermometer was used as a thermometer for each body part.

The temperature measured by the flexible temperature sensor module and the thermometer for each body part is shown in FIG. 9 .

Here, the core temperature was taken as the average value of the values measured on the left (ear-L) and right (ear-R) sides of the ear (tympanum) thermometer, respectively. Because the eardrum is located inside the ear, it is relatively less affected by the temperature of the external environment. The external temperature effect (gap) was calculated as the difference between the skin temperature (skin) and the external temperature (outer).

10 is a three-dimensional graph showing the correlation between the influence of the external temperature of FIG. 9, the temperature measured on the forehead, and the temperature of the core.

Referring to FIG. 10 , the correlation between the influence of external temperature, the temperature measured on the forehead, and the temperature of the core was modeled and displayed using matlab.

The equation of the correlation can be expressed as Equation (2).

In Equation 2, f(x,y) is the core temperature, and the core temperature is the corrected body temperature to be calculated from the correlation between the influence of external temperature and the temperature measured on the forehead. y is the forehead measurement temperature.

And the coefficients (pnm) determined through modeling are shown in Table 1.

11 is a three-dimensional graph showing the correlation between the influence of the external temperature of FIG. 9, the measured temperature of the lobe, and the temperature of the core.

Referring to FIG. 11 , the correlation between the influence of external temperature, the measured temperature of the earlobe, and the core temperature was modeled and displayed using matlab.

The equation of the correlation can be expressed as Equation (2).

In Equation 2, f(x,y) is the core temperature, and the core temperature is the corrected body temperature to be calculated from the correlation between the influence of the external temperature and the measured temperature of the earlobe. y is the earlobe measurement temperature.

And the coefficients (pnm) determined through modeling are shown in Table 1.

12 is a three-dimensional graph showing the correlation between the influence of the external temperature of FIG. 9, the measured temperature of the armpit, and the temperature of the core.

Referring to FIG. 12 , the correlation between external temperature influence, armpit measurement temperature, and core temperature was modeled and displayed using matlab.

The equation of the correlation can be expressed as Equation (2).

In Equation 2, f(x,y) is the core temperature, and the core temperature is the corrected body temperature to be calculated from the correlation between the influence of external temperature and the measured temperature under the armpit. y is the earlobe measurement temperature.

And the coefficients (pnm) determined through modeling are shown in Table 1.

As such, in this embodiment, the external temperature effect is calculated through time synchronization between the external temperature and the skin temperature measured by attaching the flexible temperature sensor module to the skin of the subject to be measured. Provides a correlation (f(x,y)) that can estimate the core temperature, which is the corrected body temperature, by correcting the temperature of each body part exposed to the external environment, such as the forehead, armpit, and earlobe, based on the influence of the external temperature. do.

On the other hand, the embodiments disclosed in the present specification and drawings are merely presented as specific examples to aid understanding, and are not intended to limit the scope of the present invention. It is obvious to those of ordinary skill in the art to which the present invention pertains that other modifications based on the technical spirit of the present invention can be implemented in addition to the embodiments disclosed herein.

10: first base film 11, 31: lower surface
13, 33: upper surface 15: mounting area
17: guard slot 19: border slot
21: first boundary slot 23: second boundary slot
30: second base film 40: ground layer
50: skin temperature sensor 51: internal sensor unit
53: internal electrode part 60: external temperature sensor
61: external sensor unit 63: external electrode unit
70: heat-generating element 71: communication unit
73: storage unit 75: control unit
77: power supply 80: protective layer
91: body temperature measuring unit 93: temperature measuring unit
95: external temperature effect calculation unit 97: body temperature correction unit
100: flexible temperature sensor module 200: management terminal
300: body part thermometer 400: body temperature correction system

Claims (8)

an external temperature effect calculator configured to calculate an external temperature effect according to a difference between the skin temperature and the external temperature at the time of measuring body temperature for each body part; and
a body temperature correction unit for calculating a corrected body temperature with respect to the body temperature for each body part from the correlation between the body temperature for each body part and the influence of the external temperature;
Body temperature compensation system for each body part considering the influence of external temperature, including According to claim 1,
a body temperature measuring unit for measuring and outputting body temperature for each body part; and
It further includes; a temperature measuring unit attached to the skin to measure the skin temperature and the external temperature,
The external temperature influence calculation unit,
The body temperature compensation system for each body part considering the external temperature effect, characterized in that the external temperature effect is calculated according to the difference between the skin temperature and the external temperature by time-synchronizing the skin temperature and the external temperature. According to claim 2, wherein the body temperature correction unit,
When receiving the body temperature measured for each body part from the body part body temperature measuring unit, the skin temperature effect at the time when the body part body temperature is measured is requested and received by the external temperature influence calculating unit, and the body part body temperature and The body temperature correction system for each body part in consideration of the external temperature effect, characterized in that the corrected body temperature is calculated from the correlation of the external temperature influence. According to claim 2, wherein the temperature measuring unit,
A flexible base film having a first base film and a second base film connected to the first base film and bent over the first base film;
a skin temperature sensor mounted on the lower surface of the first base film, the skin temperature sensor being in contact with the skin to measure the skin temperature; and
an external temperature sensor mounted on the upper surface of the second base film and measuring an external temperature;
Body temperature compensation system for each body part considering the influence of external temperature, characterized in that it comprises a. According to claim 1,
The body temperature correction system for each body part in consideration of the external temperature effect, characterized in that the correlation between the body temperature for each body part and the effect of external temperature is modeled using a matlab. According to claim 1,
The body temperature correction system for each body part in consideration of the influence of external temperature, characterized in that the body part body temperature measuring unit measures the body temperature of at least one body part among chest, forehead, armpit, ear, and earlobe. a thermometer for each body part that measures and outputs body temperature;
a flexible temperature sensor module attached to the skin to measure the skin temperature and the external temperature, and time-synchronize the skin temperature and the external temperature to calculate the external temperature effect according to the difference between the skin temperature and the external temperature; and
When the body temperature measured by the body part is received from the body part thermometer, the skin temperature effect at the time the body part body temperature is measured is requested from the flexible temperature sensor module and received, and the body part body temperature and external temperature effect a management terminal for calculating the corrected body temperature from the correlation of ;
Body temperature compensation system for each body part considering the influence of external temperature, including According to claim 7, wherein the flexible temperature sensor module,
A flexible base film having a first base film and a second base film connected to the first base film and bent over the first base film;
a skin temperature sensor mounted on the lower surface of the first base film, the skin temperature sensor being in contact with the skin to measure body temperature;
an external temperature sensor mounted on the upper surface of the second base film and measuring an external temperature; and
It is mounted on the first base film to be spaced apart from the region of the first base film to which the skin temperature sensor is attached, and receives the skin temperature measured from the skin temperature sensor, and receives the external temperature measured from the external temperature sensor, , a control unit for time-synchronizing the skin temperature and the external temperature to calculate an external temperature effect according to the difference between the skin temperature and the external temperature;
Body temperature compensation system for each body part considering the influence of external temperature, characterized in that it comprises a.

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