Body nucleus temperature measurement device, system and method

Abstract

The invention relates to a body nucleus temperature measuring device, system and method. The body nucleus temperature measuring equipment comprises a first temperature sensor, a second temperature sensor, a first heating assembly covering the second temperature sensor, a third temperature sensor arranged above the first temperature sensor and a second heating assembly covering the third temperature sensor. Wherein the first temperature sensor and the second temperature sensor are attached to different positions of the skin of a human body, and the arrangement position of the second temperature sensor is adjacent to the arrangement position of the first temperature sensor; the controller is connected with the first temperature sensor, the first heating assembly, the second temperature sensor, the second heating assembly and the third temperature sensor. According to the invention, the problems of low precision and low efficiency of body nucleus temperature measurement are solved, and accurate and efficient body nucleus temperature measurement is realized.

Description

Technical Field

[0001] The present application relates to the field of temperature measurement technology, and in particular to a body core temperature measurement device, system and method. Background Art

[0002] The body temperature distribution of the human body can be divided into surface temperature and core temperature. Core temperature refers to the deep temperature inside the human body tissue, specifically including the temperature of the human chest, abdomen and central nervous system. Surface temperature refers to the temperature of the superficial skin. Because human skin is widely distributed and easily affected by the environment, the surface temperature of different parts may be different. In comparison, core temperature is less affected by ambient temperature and is more stable. Therefore, core temperature can better reflect the current temperature condition of the human body. However, there is no way to directly measure core temperature without invasion. The related technology mainly estimates the core temperature through surface temperature, such as estimating core body temperature through dual-channel heat flow method. This method is more cumbersome and inaccurate, resulting in low accuracy and efficiency of temperature measurement method.

[0003] Currently, no effective solution has been proposed for the problems of low accuracy and efficiency in measuring core temperature in related technologies. Summary of the invention

[0004] The embodiments of the present application provide a core temperature measurement device, system and method to at least solve the problems of low accuracy and efficiency of core temperature measurement in the related art.

[0005] In a first aspect, an embodiment of the present application provides a core temperature measurement device, the core temperature measurement device comprising: a first temperature sensor, a second temperature sensor, a first heating assembly covering the second temperature sensor, a third temperature sensor disposed above the first temperature sensor, and a second heating assembly covering the third temperature sensor;

[0006] The first temperature sensor and the second temperature sensor are attached to different positions of human skin, and the second temperature sensor is arranged adjacent to the first temperature sensor;

[0007] A controller is connected to the first temperature sensor, the first heating component, the second temperature sensor, the second heating component and the third temperature sensor respectively.

[0008] In some embodiments, the core temperature measurement device further comprises an air temperature sensor; wherein the air temperature sensor is disposed on a surface of the core temperature measurement device in contact with the environment;

[0009] The controller is also connected to the air temperature sensor.

[0010] In some of these embodiments, the core temperature measurement device further comprises a thermal insulation layer;

[0011] The heat insulation layer includes an upper surface and a lower surface; wherein the first temperature sensor is arranged on the lower surface, and the third temperature sensor is arranged on the upper surface.

[0012] In some embodiments, the first heating component adopts a low thermal resistance material; and / or the second heating component adopts the low thermal resistance material; wherein the low thermal resistance material refers to a material whose thermal resistance is smaller than the thermal resistance of air.

[0013] In a second aspect, an embodiment of the present application provides a core temperature measurement system, which includes at least two core temperature measurement devices as described in the first aspect above; wherein all the core temperature measurement devices are respectively attached to different positions of the human skin.

[0014] In a third aspect, an embodiment of the present application provides a method for measuring core temperature, which is applied to the core temperature measuring device described in the first aspect above, and the method includes:

[0015] Acquire a first surface skin temperature of the first temperature sensor and the adjacent skin temperature of the second temperature sensor;

[0016] According to the first surface skin temperature and the adjacent skin temperature, controlling the first heating component to heat and enter a thermal equilibrium state; wherein the thermal equilibrium state refers to a state in which the measurement values ​​between the first temperature sensor and the second temperature sensor are equal;

[0017] In the thermal equilibrium state, a second surface skin temperature of the first temperature sensor is acquired, and a core temperature measurement result is generated according to the second surface skin temperature.

[0018] In some embodiments, when controlling the first heating component to heat up and enter a thermal equilibrium state, the method further includes:

[0019] According to the first surface skin temperature and the first longitudinal conduction temperature measured by the third temperature sensor, the second heating component is controlled to heat and enter a thermal compensation state; wherein the first surface skin temperature and the first longitudinal skin temperature are temperatures measured at the same time;

[0020] In the thermal equilibrium state and the thermal compensation state, obtaining a third surface skin temperature of the first temperature sensor and a second longitudinal conduction temperature measured by the third temperature sensor; wherein the third surface skin temperature and the second longitudinal conduction temperature are temperatures measured at the same time;

[0021] The core temperature measurement is generated based on the first superficial skin temperature, the third superficial skin temperature, the first longitudinal conduction temperature, and the second longitudinal conduction temperature.

[0022] In some embodiments, a temperature difference between the first longitudinal conduction temperature and the second longitudinal conduction temperature is greater than a preset first temperature difference threshold.

[0023] In some embodiments, there are at least two core temperature measurement devices, and after generating the core temperature measurement result according to the second surface skin temperature, the method further includes:

[0024] The core temperature measurement result corresponding to each of the core temperature measurement devices is obtained, and calculation is performed based on all of the core temperature measurement results to generate a comprehensive core temperature measurement result.

[0025] In some embodiments, the calculating based on all the core temperature measurement results to generate the comprehensive core temperature measurement result includes:

[0026] According to the arrangement position of each of the core temperature measurement devices on the human skin, assigning a corresponding weight value to the core temperature measurement result;

[0027] All the core temperature measurement results are calculated according to the weight value to generate the comprehensive core temperature measurement result.

[0028] In a fourth aspect, an embodiment of the present application provides a core temperature measurement system, which is applied to the core temperature measurement device described in the first aspect, wherein the core temperature measurement device further includes a heat insulation layer; the method includes:

[0029] Acquire a first surface skin temperature, a third surface skin temperature, a first longitudinal conduction temperature, and a second longitudinal conduction temperature; wherein the first surface skin temperature, the third surface skin temperature, the first longitudinal conduction temperature, and the second longitudinal conduction temperature are obtained by applying the core temperature measurement method according to claim 7;

[0030] generating a first core temperature measurement result based on the first surface skin temperature, the third surface skin temperature, the first longitudinal conduction temperature, and the second longitudinal conduction temperature;

[0031] Determine a first correlation between the thermal resistance of the thermal insulation layer and the longitudinal thermal resistance of the tissue based on the first core temperature measurement result, and determine a second correlation between the thermal resistance of the thermal insulation layer and the thermal resistance of the air based on the first correlation;

[0032] Under the condition that both the first heating component and the second heating component are controlled to stop heating, a fourth surface skin temperature of the first temperature sensor, a third longitudinal conduction temperature of the third temperature sensor, and a current air temperature of the air temperature sensor are obtained, and a second core temperature measurement result is generated according to the first association relationship, the second association relationship, the fourth surface skin temperature, the third longitudinal conduction temperature, and the current air temperature;

[0033] The core temperature measurement result is determined based on the first core temperature measurement result and the second core temperature measurement result.

[0034] In some embodiments, the method further comprises:

[0035] Obtaining the current air temperature measured in real time by the air temperature sensor;

[0036] Obtaining a preset second temperature difference threshold, and generating a heating trigger signal when it is detected that the current air temperature is lower than the air temperature at the last moment measured by the air temperature sensor, and the temperature difference between the current air temperature and the air temperature at the last moment reaches the second temperature difference threshold;

[0037] In response to the heating trigger signal, the first heating component and the second heating component are controlled to start heating.

[0038] Compared with the related art, the core temperature measurement device, system and method provided in the embodiments of the present application, the core temperature measurement device includes: a first temperature sensor, a second temperature sensor, a first heating component covering the second temperature sensor, a third temperature sensor arranged above the first temperature sensor and a second heating component covering the third temperature sensor; wherein the first temperature sensor and the second temperature sensor are attached to different positions of human skin, and the arrangement position of the second temperature sensor is adjacent to the arrangement position of the first temperature sensor; a controller, which is respectively connected to the first temperature sensor, the first heating component, the second temperature sensor, the second heating component and the third temperature sensor, thereby avoiding the phenomenon of inaccurate temperature measurement caused by lateral heat flow diffusion of the skin, solving the problems of low accuracy and efficiency of core temperature measurement, and realizing accurate and efficient core temperature measurement.

[0039] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0041] Figure 1 is a structural block diagram of a core temperature measurement device according to an embodiment of the present application;

[0042] Figure 2 is a structural schematic diagram of a core temperature measurement device according to an embodiment of the present application;

[0043] Figure 3 is a flow chart of a method for measuring core temperature according to an embodiment of the present application;

[0044] Figure 4 is a flow chart of another method for measuring core temperature according to an embodiment of the present application;

[0045] Figure 5A is a schematic diagram of an equivalent thermal circuit for measuring core temperature according to an embodiment of the present application;

[0046] Figure 5B is a schematic diagram of an equivalent thermal circuit for measuring core temperature according to another embodiment of the present application;

[0047] Figure 6 It is a structural diagram of the inside of a computer device according to an embodiment of the present application. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the contents disclosed in the present application, some changes such as design, manufacturing or production based on the technical contents disclosed in the present application are only conventional technical means, and should not be understood as insufficient contents disclosed in the present application.

[0049] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0050] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the" and the like involved in this application do not indicate a quantitative limitation, and may represent the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in this application refers to greater than or equal to two. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships, for example, "A and / or B" can represent: A exists alone, A and B exist at the same time, and B exists alone. The terms "first", "second", "third" and the like involved in the present application are merely used to distinguish similar objects and do not represent a specific ordering of the objects.

[0051] This embodiment provides a device for measuring core temperature. Figure 1 is a structural block diagram of a core temperature measurement device according to an embodiment of the present application, such as Figure 1 As shown, the core temperature measurement device includes: a first temperature sensor 102, a second temperature sensor 104, a first heating component 106 covering the second temperature sensor 104, a third temperature sensor 108 disposed above the first temperature sensor 102, and a second heating component 110 covering the third temperature sensor 108. The first temperature sensor 102, the second temperature sensor 104, and the third temperature sensor 108 may be a thermistor, a thermocouple, a PN junction temperature sensor, or other sensors for measuring temperature; the sensor types used by the temperature sensors may be the same or different.

[0052] The first temperature sensor 102 and the second temperature sensor 104 are attached to different positions of the human skin, and the second temperature sensor 104 is arranged adjacent to the first temperature sensor 102. Specifically, the first temperature sensor 102 is attached to the first surface measurement point of the human skin, and is used to measure the surface skin temperature of the first surface measurement point. The second temperature sensor 104 is attached to the second surface measurement point of the human skin, and is used to measure the adjacent skin temperature of the second surface measurement point; wherein the first heating component 106 covers the second temperature sensor 104; the first surface measurement point and the second surface measurement point are adjacent. It should be noted that the first surface measurement point and the second surface measurement point are adjacent to each other, which means that the distance between the first surface measurement point and the second surface measurement point is less than or equal to a preset distance threshold; the distance threshold can be set by the staff according to the actual situation, for example, the distance threshold can be set to 1.2cm; then when the core temperature measurement device is unfolded and attached to the human skin such as the chest or forehead, the distance between the first surface measurement point where the first temperature sensor 102 is located and the second surface measurement point where the second temperature sensor 104 is located should be less than 1cm, such as the distance between the first surface measurement point and the second surface measurement point is 1cm. The first heating component 106 can include at least one heating plate, each of which can be arranged around the first temperature sensor 102 and cover the second temperature sensor 104, and the skin temperature around the first temperature sensor 102 can be heated by the heating plate; accordingly, there can also be multiple second surface measurement points. Furthermore, the heating plate can use a flexible heating material that fits the skin, such as graphene and other materials, thereby avoiding the problem of heating by means of aluminum walls and other methods in related technologies, which causes the heating component to be unsuitable for fitting the temperature of the skin.

[0053] The third temperature sensor 108 being arranged above the first temperature sensor 102 means that the first temperature sensor 102 is attached to the first surface measurement point, and the third temperature sensor 108 is arranged at an end of the first temperature sensor 102 relatively far away from the first surface measurement point, so that the third temperature sensor 108 can measure the ambient temperature.

[0054] The controller 112 is connected to the first temperature sensor 102, the first heating component 106, the second temperature sensor 104, the second heating component 110 and the third temperature sensor 108 respectively, and is used to control the first heating component 106 to heat the second surface measurement point according to the surface skin temperature and the adjacent skin temperature, and generate a core temperature measurement result. Specifically, the controller 112 controls the first heating component 106 to heat the second surface measurement point according to the temperature difference between the surface skin temperature and the adjacent skin temperature to isolate the lateral heat flow of the skin. Further, the controller 112 can feedback adjust the first heating component 106 through a PID algorithm, that is, take the surface skin temperature and the adjacent skin temperature as input to control the output power of the first heating component 106, so that after the first heating component 106 is started to heat the adjacent skin temperature to reach the surface skin temperature, the heating power adjustment of the first heating component 106 to the adjacent skin temperature can be controlled, thereby ensuring that the adjacent skin temperature and the surface skin temperature can be maintained in a thermal equilibrium state. The controller 112 is also used to control the second heating component 110 to heat according to the measurement value of the third temperature sensor 108, so as to thermally compensate the longitudinal diffusion heat flow, that is, enter the thermal compensation state; while the controller 112 controls the second heating component 110 to heat the ambient temperature to different temperatures, the heating power of the first heating component 106 is adjusted accordingly, so that the adjacent skin temperature is still equal to the surface skin temperature, and the core temperature measurement result can be obtained. By controlling the heating of the first heating component 106 and the second heating component 110 by the controller 112, automatic and continuous core temperature measurement can be achieved without additional manual calibration or auxiliary measurement by other temperature measurement equipment, thereby further improving the accuracy of the core temperature measurement equipment.

[0055] Through the above embodiment, the first heating component 106 is controlled to heat by the signals collected by the first temperature sensor 102 and the second temperature sensor 104 in the core temperature measurement device, thereby avoiding the phenomenon of inaccurate temperature measurement caused by lateral heat flow diffusion of the skin, and there is no need to solve the body thermal resistance and sensor thermal resistance, which effectively solves the problem of low accuracy and efficiency of core temperature measurement, and realizes an accurate and efficient core temperature measurement device.

[0056] In some embodiments, the core temperature measurement device further includes a heat-insulating layer; wherein the heat-insulating layer includes an upper surface and a lower surface; the first temperature sensor is disposed on the lower surface, and the third temperature sensor is disposed on the upper surface. The upper surface refers to the surface of the heat-insulating layer that is relatively far from the human skin, and the lower surface refers to the surface of the heat-insulating layer that is relatively close to the human skin. The heat-insulating layer is used to isolate the temperature at the first temperature sensor to prevent heat from leaking into the environment, thereby avoiding the problem of inaccurate temperature measurement caused by the influence of ambient temperature on the core temperature measurement device currently attached to the surface of human skin.

[0057] In some embodiments, the core temperature measurement device further includes an air temperature sensor; the air temperature sensor is disposed on the surface of the core temperature measurement device in contact with the environment; for example, the air temperature sensor can be disposed above a side of the first heating component that is relatively far away from the human skin, or above or below a side of the second heating component 110 that is relatively far away from the human skin, so that after the fourth temperature sensing device is fixedly installed around the first heating component or the second heating component 110 in the core temperature measurement device, the air temperature around the heating component can be measured.

[0058] The controller is also connected to the air temperature sensor. The air temperature sensor may be a sensor for measuring temperature such as a thermistor, a thermocouple, or a PN junction temperature sensor. The controller is also used to generate a heating trigger signal according to the real-time air temperature, and in response to the heating trigger signal, control the first heating component and / or the second heating component 110 to start heating. Through the above embodiment, the air temperature measured by the air temperature sensor controls each heating component to heat, thereby further improving the measurement accuracy of the core temperature measurement device.

[0059] In some embodiments, the first heating component is made of low thermal resistance material; and / or the second heating component is made of the low thermal resistance material; wherein the low thermal resistance material refers to a material whose thermal resistance is less than the thermal resistance of air. Through the above embodiments, a heating material whose thermal resistance is much less than the thermal resistance of air is used, so that the skin temperature at the second surface measurement point is consistent with the temperature of the surrounding uncovered skin, thereby avoiding the existence of other aspects of lateral heat flow, which can be beneficial to further improve the measurement accuracy of the core temperature measurement device.

[0060] In some embodiments, the core temperature measurement device is a wearable device. Specifically, the wearable device can be a wristband, a patch or other wearable device, that is, the temperature sensors, the heating components and the controller are all encapsulated in the wearable device. Furthermore, the wearable device can be designed with flexible materials so as to adhere well to human skin. Through the above embodiments, it is convenient for users to wear the core temperature measurement device for a long time and facilitate their activities, thereby effectively improving the convenience of using the core temperature measurement device.

[0061] The following describes the embodiments of the present application in detail in combination with actual application scenarios. Figure 2 is a schematic structural diagram of a core temperature measurement device according to an embodiment of the present application, such as Figure 2 As shown, the core temperature measurement device includes: four temperature sensors, a first heating component, a second heating component and a heat insulation layer. Specifically, the first temperature sensor is close to the epidermis of the user's skin to measure the surface temperature T of the skin directly below the heat insulation layer. skin , where the human skin dermis has a longitudinal thermal resistance R body The first temperature sensor is covered with a heat-insulating material. The first temperature sensor is covered with a covering surface of the heat-insulating material. The measuring surface is used to measure the ambient temperature T semsor The third temperature sensor. The heating plate 1 of the first heating assembly is arranged around the insulation layer; the second temperature sensor is arranged below the heating plate 1 to measure the skin surface temperature T around the insulation layer. skin_e ; Among them, there is a thermal insulation layer thermal resistance R between the second temperature sensor and the third sensor semsor The heating plate 2 of the second heating component is arranged above the insulation layer and the third temperature sensor. The air temperature sensor is arranged above and on the side of the second heating component, or the air temperature sensor is arranged above the first heating component to measure the air temperature T air , where there is air thermal resistance R around the core temperature measurement device air .

[0062] This embodiment also provides a core temperature measurement system, which includes at least two core temperature measurement devices as in any of the above-mentioned device embodiments; wherein all the core temperature measurement devices are respectively attached to different positions of the above-mentioned human skin. Specifically, each core temperature measurement device can be attached to various positions of the human skin such as the forehead, chest and limbs, and the core temperature measurement results of each core temperature measurement device are integrated to obtain the final core temperature measurement result. It should be supplemented that the core temperature measurement system also includes a main control device, which is used to obtain the core temperature measurement results measured by all the core temperature measurement devices above, and calculate all the core temperature measurement results to obtain the comprehensive core temperature measurement result; the main control device can be the controller in any of the core temperature measurement devices above; or, the main control device can be the controller in the device used to attach to the central part of the human body such as the chest in the core temperature measurement device above; or, the main control device can also be an independent hardware device that communicates with the controllers of each core temperature measurement device, and the main control device and each controller can be used for data transmission through a wireless network, a signal line or a local area network, etc., which will not be repeated here. Furthermore, the structures of the core temperature measurement devices may be exactly the same or different; for example, the core temperature measurement system may include two core temperature measurement devices, and both of these core temperature measurement devices may include the above-mentioned four temperature sensors, two sets of heating components and a thermal insulation layer. One of the core temperature measurement devices may also be configured to have a structural design that does not include an air temperature sensor, as long as the device can measure the core temperature of the current channel.

[0063] It is understandable that since the area occupied by a channel is limited, when the user is moving, it is possible that a channel device is not firmly attached to the skin, causing the temperature sensor in the device to detach from the skin. Therefore, the embodiment of the present application implements dual-channel or multi-channel heat flow measurement of human skin through a core temperature sensing system including multiple core temperature measurement devices, thereby greatly increasing the possibility that at least one channel device can continue to fit the skin, thereby maximizing the probability of good fit between the core temperature measurement device and the skin when the user is in motion.

[0064] This embodiment also provides a core temperature measurement method, which is applied to the core temperature measurement device in any of the above device embodiments. Figure 3 is a flow chart of a method for measuring core temperature according to an embodiment of the present application. Figure 3 As shown, the process includes the following steps:

[0065] Step S310, obtaining a first surface skin temperature measured by the first temperature sensor and an adjacent skin temperature measured by the second temperature sensor.

[0066] Step S320, controlling the first heating component to heat and enter a thermal equilibrium state according to the first surface skin temperature and the adjacent skin temperature.

[0067] Among them, after the first surface skin temperature at the first surface measurement point and the adjacent skin temperature at the second surface measurement point are respectively measured by each temperature sensor, the heating power of the first heating component is feedback-adjusted by a control algorithm such as PID according to the temperature difference between the two temperatures. For example, the heating of the first heating component can be controlled by a preset oscillation and step-by-step approach between overheating and underheating, so that the adjacent skin temperature quickly converges to the surface skin temperature, thereby achieving a thermal equilibrium state between the surface skin temperature and the adjacent skin temperature, effectively avoiding lateral heat flow in the skin.

[0068] Step S330, in the thermal equilibrium state, obtaining the second surface skin temperature of the first temperature sensor, and generating a core temperature measurement result according to the second surface skin temperature.

[0069] Through the above steps S310 to S330, the first heating component is controlled to heat by the signals collected by the first temperature sensor and the second temperature sensor in the core temperature measurement device, thereby avoiding the phenomenon of inaccurate temperature measurement caused by lateral heat flow diffusion of the skin, and there is no need to solve the body thermal resistance and sensor thermal resistance, which effectively solves the problems of low accuracy and efficiency of core temperature measurement, and realizes an accurate and efficient core temperature measurement method.

[0070] In some of the embodiments, a method for measuring core temperature is also provided, wherein the core temperature measuring device further comprises a third temperature sensor and a second heating assembly; Figure 4 is a flow chart of another method for measuring core temperature according to an embodiment of the present application. Figure 4 As shown, the process includes the following Figure 3 The steps S310 to S320 shown in the figure further include the following steps:

[0071] Step S410, when the first heating component is controlled to heat up and enter a thermal equilibrium state, the second heating component is controlled to heat up and enter a thermal compensation state according to the first surface skin temperature and the first longitudinal conduction temperature measured by the third temperature sensor; wherein the first surface skin temperature and the first longitudinal skin temperature are temperatures measured at the same time.

[0072] Step S420, in the thermal equilibrium state and the thermal compensation state, obtaining the third surface skin temperature of the first temperature sensor and the second longitudinal conduction temperature measured by the third temperature sensor; wherein the third surface skin temperature and the second longitudinal conduction temperature are temperatures measured at the same time.

[0073] Step S430, generating the core temperature measurement result according to the first surface skin temperature, the third surface skin temperature, the first longitudinal conduction temperature and the second longitudinal conduction temperature.

[0074] in, Figure 5A is a schematic diagram of an equivalent thermal circuit for measuring core temperature according to an embodiment of the present application, such as Figure 5A As shown, at this time, the core temperature measurement device is in a state where the first heating component and the second heating component are not started to heat; then when the ambient temperature is lower than the body temperature and there is no external heating source, the heat source, i.e., the core temperature, is triggered from deep inside the human body, and most of the heat passes through the longitudinal thermal resistance R of the tissue. body Transferred to the skin surface, a small amount of heat passes through the skin's lateral thermal resistance R leak Diffusion to the surrounding skin and environment, through the tissue longitudinal thermal resistance R body The temperature transferred to the skin surface can be sensed by the first temperature sensor; the heat is further filled with thermal resistance R through the thermal insulation material. sensor The heat is transferred to the top of the insulation material, so that it can be sensed by the third temperature sensor; through the lateral leakage thermal resistance R leak The leaked heat flow and the heat transferred from the deep skin just below the skin around the insulation material filling form the epidermal temperature T around the insulation material filling. skin_e , which is the adjacent skin temperature mentioned above.

[0075] Above Figure 5A In the present invention, lateral heat diffusion is the main factor that causes the traditional dual-channel heat flow method to be unable to accurately assess the temperature. To this end, this embodiment provides a body core temperature measurement device including a first heating component and a second heating component; please refer to Figure 5B , at this time, the core temperature measurement device is in a state where the first heating component and the second heating component are started to heat; when the first heating component is controlled to heat so that the skin surface temperature of the second surface measurement point below the first heating component is the same as the temperature of the first surface measurement point measured by the first temperature sensor, it is considered that the heat flow does not pass through the transverse heat leakage resistance, that is, after the heat flow flows from the core to the body surface and is measured by the first temperature sensor, since the transverse thermal resistance of the skin is infinite, it can be considered that almost all the heat flow flows from the body surface to the direction of the third temperature sensor at this time, and the thermal circuit model can be simplified to remove the transverse thermal resistance R of the skin. leak , the following equation holds:

[0076] (T core -T skin ) / R body =(T skin -T sensor ) / R sensor Formula 1

[0077] In the above formula 1, T core Used to represent the core temperature, T skin Used to represent the surface skin temperature measured by the first temperature sensor, T semsor Used to indicate the ambient temperature measured by the third temperature sensor, R body Used to represent the longitudinal thermal resistance of the tissue, R sensor Used to represent the thermal resistance of the insulation layer surrounding the first temperature sensor.

[0078] After controlling the first heating component to heat the second surface measurement point so that the surface skin temperature and the adjacent skin temperature reach a thermal equilibrium state, and controlling the second heating component to heat the ambient temperature to enter a thermal compensation state, the thermal circuit model shown in Formula 1 above is established. Assuming the core temperature T core In the short term, the temperature remains unchanged, and the second heating component is used to heat the surface directly above the insulation material filling, so that the third temperature sensor has two measurement values, namely the first longitudinal conduction temperature T semsor1 and the second longitudinal conduction temperature T semsor2 The corresponding first temperature sensor measures the temperature of the first surface measurement point and is T skin1 and T skin2 ; Because during the heating process of the second heating component, the thermal equilibrium state is always guaranteed, that is, the first heating component will adjust in real time with the heating of the second heating component to maintain the stability of the thermal equilibrium state. Therefore, during the heating of the second heating component, based on the thermal circuit model equation shown in the above formula 1, the following formulas 2 and 3 can be obtained:

[0079] (T core -T skin1 ) / R body =(T skin1 -T sensor1 ) / R sensor Formula 2

[0080] (T core -T skin2 ) / R body =(T skin2 -T sensor2 ) / R sensor Formula 3 Combining the above formula 2 and formula 3, we can get the following calculation formula:

[0081]

[0082] Therefore, according to the above formula 4, the first surface skin temperature T measured by the first temperature sensor in the two states of maintaining thermal equilibrium, not entering the thermal compensation state, and entering the thermal compensation state is skin1 , Third layer skin temperature Tskin2 , and the first longitudinal conduction temperature T measured by the third temperature sensor at the corresponding time sensor1 , the second longitudinal conduction temperature T sensor2 , the above-mentioned accurate core temperature measurement results can be calculated.

[0083] In other embodiments, two moments may be selected during the heating process of the second heating component to obtain the first surface skin temperature T measured by the first temperature sensor at the two moments. skin1 , Third layer skin temperature T skin2 , and the first longitudinal conduction temperature T measured by the third temperature sensor sensor1 , the second longitudinal conduction temperature T sensor2 , establish the above formula 2 and formula 3 to obtain formula 4.

[0084] Further, the temperature difference between the first longitudinal conduction temperature and the second longitudinal conduction temperature is greater than a preset first temperature difference threshold. The first temperature difference threshold can be set in advance by the staff in combination with actual conditions, for example, it can be set to 5°C. Specifically, when the controller detects that the second heating component is heated and has risen to a certain threshold through the measurement value collected in real time by the third temperature sensor, the measurement value collected by the third temperature sensor at the current moment is obtained as the second longitudinal conduction temperature, and the third surface skin temperature measured by the first temperature sensor at the same moment is obtained, and the third surface skin temperature is substituted into the above formula 4 to calculate the final core temperature measurement result, thereby avoiding the problem of low accuracy of the core temperature measurement result calculated by the above method when the difference between the temperature values ​​measured by the third temperature sensor before and after is small, thereby effectively improving the accuracy of the core temperature measurement by controlling the temperature difference collected by the third temperature sensor twice to be greater than a certain threshold.

[0085] Through the above steps S410 to S430, the heating is controlled by the first heating component and the second heating component, thereby achieving the purpose of measuring the core temperature using the single-channel heat flow method, while simplifying the heat flow model and making the core temperature measurement result more accurate.

[0086] In some embodiments, there are at least two core temperature measurement devices. After generating the core temperature measurement result according to the second surface skin temperature signal, the core temperature measurement method further comprises the following steps:

[0087] Step S240, obtaining the core temperature measurement result corresponding to each core temperature measurement device, and performing calculations based on all the core temperature measurement results to generate a comprehensive core temperature measurement result.

[0088] Among them, the above-mentioned core temperature measurement result can be measured and calculated by the corresponding core temperature measurement device through the steps in any of the above-mentioned method embodiments. Each core temperature measurement device can be attached to different positions of the human skin such as the chest, specific parts of the armpit, abdomen and forehead. In one embodiment, the average value of all the above-mentioned core temperature measurement devices can be calculated to obtain the above-mentioned comprehensive core temperature measurement result; in another embodiment, the maximum value, minimum value and other extreme values ​​in all the core temperature measurement results can also be removed, or the self-test circuits such as the temperature sensor detection module and the heating detection module set in each independent temperature channel can be used to detect whether each module is working normally, and the core temperature measurement detection corresponding to the detected abnormal working channel is removed, and then the average value is calculated according to the retained core temperature measurement results, and finally the above-mentioned comprehensive core temperature measurement result is obtained.

[0089] Through the above step S240, the final core temperature measurement result is obtained by comprehensively analyzing the core temperature measurement results of multiple core temperature measurement devices, which can minimize some accidental errors or errors caused by too large discrete values ​​of individual devices. At the same time, it can also play a backup role, that is, when a problem occurs in a certain channel, other channels can still measure the correct core temperature, thereby effectively improving the accuracy of core temperature measurement.

[0090] In some embodiments, the above calculation based on all the core temperature measurement results to generate the comprehensive core temperature measurement result also includes the following steps:

[0091] Step S241, assigning a corresponding weight value to the core temperature measurement result according to the arrangement position of each core temperature measurement device on the human skin.

[0092] Among them, since the surface temperature at the center of the human body, such as the chest, is closer to the core temperature than the surface temperature at the limbs, etc., the weight value assigned to the core temperature measurement results measured by the core temperature measurement equipment arranged at the chest and abdomen in this embodiment is higher than the weight value assigned to the core temperature measurement results measured by the core temperature measurement equipment arranged at the limbs, forehead, etc. It should be supplemented that, in another embodiment, the above method embodiment can also be used to first filter out extreme values ​​or erroneous values ​​of each core temperature measurement result, and after completing the data screening, the corresponding weight value is assigned to each retained core temperature measurement result, so as to further improve the accuracy of the core temperature measurement.

[0093] Step S242, calculating all the core temperature measurement results according to the weight value to generate the comprehensive core temperature measurement result.

[0094] Specifically, all the core temperature measurement results are fused and calculated based on the weight values ​​to obtain a comprehensive core temperature measurement result, as shown in the following formula 5:

[0095]

[0096] In the above formula 5, T core_target Used to represent the core temperature measurement results of the above complex, T core_ It is used to represent the core temperature measurement result measured by the i-th core temperature measurement device, W i It is used to represent the weight value assigned to the i-th body core temperature measurement result, n is used to represent the number of body core temperature measurement devices; n is a positive integer, and i is a positive integer variable less than or equal to n.

[0097] Through the above steps S241 to S242, corresponding weight values ​​are assigned to the core temperature measurement results measured by each core temperature measurement device based on its corresponding arrangement position on the human skin, and weighted calculation is performed on each core temperature measurement result based on the weight value, so that the calculated comprehensive core temperature measurement result can be close to the core temperature measurement result with higher accuracy, effectively improving the accuracy of core temperature measurement.

[0098] This embodiment also provides a core temperature measurement method, which is applied to the core temperature measurement device mentioned above; the core temperature measurement device mentioned above also includes a heat insulation layer; the core temperature measurement method includes the following steps:

[0099] Step S510, obtaining a first surface skin temperature, a third surface skin temperature, a first longitudinal conduction temperature, and a second longitudinal conduction temperature; wherein the first surface skin temperature, the third surface skin temperature, the first longitudinal conduction temperature, and the second longitudinal conduction temperature are obtained by applying a core temperature measurement method such as any of the above method embodiments.

[0100] Step S520: generating a first core temperature measurement result according to the first surface skin temperature, the third surface skin temperature, the first longitudinal conduction temperature and the second longitudinal conduction temperature.

[0101] Among them, using the above formula 4, according to the two sets of temperature values ​​measured by the first temperature sensor and the third temperature sensor under different heating states, the first core temperature measurement result obtained by starting the first heating component and the second heating component for heating measurement can be calculated.

[0102] Step S530: determining a first correlation between the thermal resistance of the thermal insulation layer and the longitudinal thermal resistance of the tissue based on the first core temperature measurement result, and determining a second correlation between the thermal resistance of the thermal insulation layer and the thermal resistance of the air based on the first correlation.

[0103] Specifically, by combining the above formula 2 and formula 3, the proportional relationship between the thermal resistance of the thermal insulation layer and the longitudinal thermal resistance of the tissue can be solved, that is, the above first correlation relationship is obtained, as shown in the following formula 6:

[0104]

[0105] Then, through the above formula 6, according to the first core temperature measurement result and the temperature values ​​measured by each sensor module, the ratio between the longitudinal thermal resistance of the tissue and the thermal resistance of the insulation layer can be calculated, so that a more accurate core temperature measurement result can be obtained based on the ratio in the subsequent calculation, without having to solve the longitudinal thermal resistance of the tissue separately, which is beneficial to improving the calculation efficiency of the core temperature measurement method.

[0106] Furthermore, although the human body core temperature can be obtained through the above method embodiment, the first heating component and the second heating component need to be started during measurement, which will bring about high power consumption for scenes that require frequent measurements. Therefore, in most measurement situations, the non-heating setting is used in this embodiment. At this time, the heat flow equilibrium state at the node on the skin surface outside the insulation layer can be calculated to obtain the following formula:

[0107]

[0108] In the above formula 7, T skin_ Used to represent the adjacent skin temperature measured by the second temperature sensor, R air Used to represent the air thermal resistance, T air It is used to represent the air temperature measured by the air temperature sensor. In addition, the heat flux balance state of the node on the skin surface directly below the insulation layer can be calculated as follows:

[0109]

[0110] Combining the above formula 7 and formula 8, the skin lateral thermal resistance R can be eliminated. leak Item, we get the following formula 9:

[0111]

[0112] Substituting the above formula 6 into formula 9, we get the following formula 10:

[0113]

[0114] Assume that: R air / R sensor =β, then the ratio between the air thermal resistance and the thermal resistance of the thermal insulation layer can be calculated using the above formula 10, that is, the above second correlation relationship can be obtained, as shown in the following formula 11:

[0115]

[0116] According to the above formula 11, the second correlation β value can be calculated based on the adjacent skin temperature measured by the second temperature sensor for the second surface measurement value, the air temperature measured by the air temperature sensor, the above first correlation, the first core temperature measurement result, the surface skin temperature measured by the first temperature sensor, and the ambient temperature measured by the third temperature sensor, and β is a constant value when the environmental parameters such as air humidity, density, and convection remain relatively unchanged. If each group of heating components is started at a certain interval, it is convenient to obtain the core body temperature more accurately, so as to know the core temperature at that moment. If the core temperature remains constant for a short time, the β value can be obtained after cooling to the normal ambient temperature, thereby ensuring the continuous measurement of the core body temperature.

[0117] Step S540, while controlling the first heating component and the second heating component to stop heating, obtain the fourth surface skin temperature of the first temperature sensor, the third longitudinal conduction temperature of the third temperature sensor, and the current air temperature of the air temperature sensor, and generate a second core temperature measurement result based on the first association relationship, the second association relationship, the fourth surface skin temperature, the third longitudinal conduction temperature and the current air temperature.

[0118] Step S550: determining the core temperature measurement result according to the first core temperature measurement result and the second core temperature measurement result.

[0119] Specifically, according to the above formula 11, the following formula can be obtained:

[0120]

[0121] Further obtain:

[0122]

[0123] It can be seen that in the case of no heating and steady state, the core temperature is the surface skin temperature T skin , adjacent skin temperature T skin_ , Ambient temperature (longitudinal conduction temperature) T sensor and the air temperature T air That is, using the above formula 12, the second core temperature measurement result in the non-heating state can be calculated according to the above first correlation relationship α, the second correlation relationship β, the fourth surface skin temperature, the third longitudinal conduction temperature and the current air temperature. Further, through the above steps, the continuous core temperature measurement results of the core temperature measurement device in the alternating state of heating and non-heating can be obtained in real time.

[0124] Through the above steps S510 to S550, the above thermal circuit model is used to determine each association based on the first core temperature measurement result, thereby eliminating the need to additionally calculate the longitudinal thermal resistance of the tissue; at the same time, the core temperature measurement result in the non-heating state is calculated based on each association, thereby achieving accurate measurement of the continuity of the core temperature.

[0125] In some embodiments, the core temperature measurement device further includes an air temperature sensor; the core temperature measurement method further includes the following steps: obtaining the current air temperature measured by the air temperature sensor; obtaining a preset second temperature difference threshold, and generating a heating trigger signal when it is detected that the current air temperature is lower than the air temperature at the last moment measured by the air temperature sensor, and the temperature difference between the current air temperature and the air temperature at the last moment reaches the second temperature difference threshold; in response to the heating trigger signal, controlling the first heating component and the second heating component to start heating.

[0126] Among them, the second temperature difference threshold can be set by the staff in advance according to the actual situation, for example, the temperature difference threshold can be set to 10°C. Specifically, the air temperature sensor is used to continuously measure the air temperature, that is, to obtain the real-time air temperature. For example, the air temperature sensor can collect the air temperature every 3 seconds; at the same time, the temperature difference between a series of real-time air temperatures is detected. When it is detected that the current air temperature drops, and the temperature difference between the real-time air temperatures collected twice before and after exceeds the second temperature difference threshold, it indicates that the temperature of the space where the current user is located has changed drastically. In order to avoid the influence of environmental mutation on the measurement result of the core temperature measurement device, a heating trigger signal can be generated in response to the temperature difference detection result, and then the first heating component and / or the second heating component can be controlled to start heating based on the heating trigger signal. At the same time, the heating power of the first heating component is feedback-adjusted according to the surface skin temperature and the adjacent skin temperature during the heating process, and the heating power of the second heating component is feedback-adjusted according to the surface skin temperature and the ambient temperature. It can be understood that in another embodiment, the timer and other modules included in the core temperature measurement device can also be used to control whether each heating component starts heating, which will not be repeated here.

[0127] Through the above-mentioned embodiment, a heating trigger signal is generated based on the real-time air temperature measured by the air temperature sensor, thereby realizing that the air temperature is used as a judgment condition for starting and triggering each heating component, so that when the external air temperature or the timer time reaches a certain condition, the heating measurement process can be triggered, which is beneficial to improving the accuracy of core temperature measurement control.

[0128] It should be noted that the steps shown in the above process or the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0129] This embodiment also provides a computer device, which may be a server. Figure 6 is a structural diagram of the inside of a computer device according to an embodiment of the present application, such as Figure 6 As shown. The computer device includes a processor, a memory, a network interface and a database connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store core temperature measurement results. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, the above-mentioned core temperature measurement method is implemented.

[0130] Those skilled in the art will understand that Figure 6 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0131] This embodiment further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0132] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0133] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0134] S1, obtaining a first surface skin temperature measured by the first temperature sensor and an adjacent skin temperature measured by the second temperature sensor.

[0135] S2, controlling the first heating component to heat and enter a thermal equilibrium state according to the first surface skin temperature and the adjacent skin temperature.

[0136] S3, in the thermal equilibrium state, obtaining the second surface skin temperature of the first temperature sensor, and generating a core temperature measurement result according to the second surface skin temperature.

[0137] It should be noted that the specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0138] In addition, in combination with the core temperature measurement method in the above embodiments, the present application embodiment can provide a storage medium for implementation. The storage medium stores a computer program; when the computer program is executed by a processor, any core temperature measurement method in the above embodiments is implemented.

[0139] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0140] Those skilled in the art should understand that the technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0141] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A core temperature measurement device, characterized in that: The core temperature measurement device comprises: a first temperature sensor, a second temperature sensor, a first heating assembly covering the second temperature sensor, a third temperature sensor disposed above the first temperature sensor, and a second heating assembly covering the third temperature sensor; The first temperature sensor and the second temperature sensor are attached to different positions of human skin, and the second temperature sensor is arranged adjacent to the first temperature sensor; A controller is connected to the first temperature sensor, the first heating component, the second temperature sensor, the second heating component and the third temperature sensor respectively.

2. The core temperature measurement device according to claim 1, characterized in that: The core temperature measurement device further comprises an air temperature sensor; wherein the air temperature sensor is arranged on a surface of the core temperature measurement device in contact with the environment; The controller is also connected to the air temperature sensor.

3. The core temperature measurement device according to claim 1, characterized in that: The core temperature sensing device also includes a thermal insulation layer; The heat insulation layer includes an upper surface and a lower surface; wherein the first temperature sensor is arranged on the lower surface, and the third temperature sensor is arranged on the upper surface.

4. The core temperature measurement device according to any one of claims 1 to 3, characterized in that: The first heating component adopts a low thermal resistance material; and / or the second heating component adopts the low thermal resistance material; wherein the low thermal resistance material refers to a material whose thermal resistance is smaller than the thermal resistance of air.

5. A core temperature measurement system, characterized in that: The core temperature measurement system comprises at least two core temperature measurement devices according to any one of claims 1 to 4; wherein all the core temperature measurement devices are respectively attached to different positions of the human skin.

6. A method for measuring core temperature, characterized in that: Applied to the core temperature measurement device according to any one of claims 1 to 4, the method comprises: Acquire a first surface skin temperature measured by the first temperature sensor and an adjacent skin temperature measured by the second temperature sensor; According to the first surface skin temperature and the adjacent skin temperature, controlling the first heating component to heat and enter a thermal equilibrium state; wherein the thermal equilibrium state refers to a state in which the measurement values ​​between the first temperature sensor and the second temperature sensor are equal; In the thermal equilibrium state, a second surface skin temperature of the first temperature sensor is acquired, and a core temperature measurement result is generated according to the second surface skin temperature.

7. The method for measuring core temperature according to claim 6, characterized in that: In the case of controlling the first heating component to heat up and enter a thermal equilibrium state, the method further includes: According to the first surface skin temperature and the first longitudinal conduction temperature measured by the third temperature sensor, the second heating component is controlled to heat and enter a thermal compensation state; wherein the first surface skin temperature and the first longitudinal skin temperature are temperatures measured at the same time; In the thermal equilibrium state and the thermal compensation state, obtaining a third surface skin temperature of the first temperature sensor and a second longitudinal conduction temperature measured by the third temperature sensor; wherein the third surface skin temperature and the second longitudinal conduction temperature are temperatures measured at the same time; The core temperature measurement is generated based on the first superficial skin temperature, the third superficial skin temperature, the first longitudinal conduction temperature, and the second longitudinal conduction temperature.

8. The method for measuring core temperature according to claim 7, characterized in that: A temperature difference between the first longitudinal conduction temperature and the second longitudinal conduction temperature is greater than a preset first temperature difference threshold.

9. The method for measuring core temperature according to claim 6, characterized in that: There are at least two core temperature measurement devices. After generating the core temperature measurement result according to the second surface skin temperature, the method further includes: The core temperature measurement result corresponding to each of the core temperature measurement devices is obtained, and calculation is performed based on all of the core temperature measurement results to generate a comprehensive core temperature measurement result.

10. The method for measuring core temperature according to claim 9, characterized in that: The step of calculating based on all the core temperature measurement results to generate the comprehensive core temperature measurement result includes: According to the arrangement position of each of the core temperature measurement devices on the human skin, assigning a corresponding weight value to the core temperature measurement result; All the core temperature measurement results are calculated according to the weight value to generate the comprehensive core temperature measurement result.

11. A method for measuring core temperature, characterized in that: The core temperature measurement device according to claim 2, wherein the core temperature measurement device further comprises a heat insulation layer; and the method comprises: Acquire a first surface skin temperature, a third surface skin temperature, a first longitudinal conduction temperature, and a second longitudinal conduction temperature; wherein the first surface skin temperature, the third surface skin temperature, the first longitudinal conduction temperature, and the second longitudinal conduction temperature are obtained by applying the core temperature measurement method according to claim 7; generating a first core temperature measurement result based on the first surface skin temperature, the third surface skin temperature, the first longitudinal conduction temperature, and the second longitudinal conduction temperature; Determine a first correlation between the thermal resistance of the thermal insulation layer and the longitudinal thermal resistance of the tissue based on the first core temperature measurement result, and determine a second correlation between the thermal resistance of the thermal insulation layer and the thermal resistance of the air based on the first correlation; Under the condition that both the first heating component and the second heating component are controlled to stop heating, a fourth surface skin temperature of the first temperature sensor, a third longitudinal conduction temperature of the third temperature sensor, and a current air temperature of the air temperature sensor are obtained, and a second core temperature measurement result is generated according to the first association relationship, the second association relationship, the fourth surface skin temperature, the third longitudinal conduction temperature, and the current air temperature; The core temperature measurement result is determined based on the first core temperature measurement result and the second core temperature measurement result.

12. The method for measuring core temperature according to claim 11, characterized in that: The method further comprises: Obtaining the current air temperature measured in real time by the air temperature sensor; Obtaining a preset second temperature difference threshold, and generating a heating trigger signal when it is detected that the current air temperature is lower than the air temperature at the last moment measured by the air temperature sensor, and the temperature difference between the current air temperature and the air temperature at the last moment reaches the second temperature difference threshold; In response to the heating trigger signal, the first heating component and the second heating component are controlled to start heating.

Images