Human body health detection method and apparatus based on skin temperature control

By controlling the skin temperature and using the light signal detection method, the weak signal and background interference problems of near-infrared spectroscopy technology in human health detection are solved, and high-precision physiological index detection is achieved under a stable temperature environment.

WO2025148094A1PCT designated stage expired Publication Date: 2025-07-17ZHEJIANG UNIV
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Patent Information

Application Number
PCT/CN2024/072945
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-01-09
Filing Date
2024-01-18
Publication Date
2025-07-17

AI Technical Summary

Technical Problem

In the prior art, near-infrared spectroscopy technology has problems such as weak signal, background interference, and individual heterogeneity in human health detection, making it difficult to extract effective information from strong background spectrum.

Method used

By controlling the skin temperature to a preset threshold, using the preset wavelength light signal to irradiate the skin, obtaining feedback signals and calculating physiological indicators, combining the temperature control module and the spectral detection module to achieve detection in a stable temperature environment.

Benefits of technology

Effectively eliminate interference from ambient temperature and the body's own temperature fluctuations, improve detection accuracy, ensure constant skin temperature, improve signal-to-noise ratio, and improve detection effect.

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Abstract

The present invention relates to a human body health detection method and apparatus based on skin temperature control. The human body health detection method comprises acquiring a skin temperature at a contact position; determining whether the skin temperature reaches a preset temperature threshold or not; in a case where the skin temperature does not reach the preset temperature threshold, generating a temperature adjustment instruction to change the skin temperature; in a case where the skin temperature reaches the preset temperature threshold, generating a light-emitting instruction, so that a light signal irradiates the skin at the contact position; acquiring a feedback signal of the skin at the contact position; and according to the skin temperature and the feedback signal, calculating physiological indexes. The present invention has the advantages that the skin temperature at the contact position is controlled, a stable temperature environment is provided for subsequent health detection, and the fluctuation interferences of the environmental temperature and the temperature of the human body itself are eliminated.
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Description

Human health detection method and device based on skin temperature control Technical Field

[0001] The present invention relates to the technical field of human health detection, and in particular to a human health detection method and device based on skin temperature control. Background Art

[0002] As people's health awareness continues to rise, more and more people are paying attention to their personal health and fitness goals. The rapid development of mobile internet, sensor technology, and wearable devices has enabled smart bracelets to integrate multiple sensors and intelligent algorithms, enabling real-time monitoring of users' blood sugar, heart rate, sleep quality, steps, calories burned, and other data. These bracelets provide a simple and effective way to monitor physical condition, encouraging people to pay more attention to their health and adjust their lifestyles to achieve better health.

[0003] Near-infrared spectroscopy has always been expected to be used for human health monitoring, but the main reasons hindering the use of near-infrared spectroscopy for monitoring are as follows:

[0004] 1. The signal is weak

[0005] Near-infrared spectroscopy is affected by light scattering and absorption in human tissue, preventing some light from penetrating deeper tissue layers and weakening the detected optical signal. Furthermore, the core of the near-infrared spectral band is the frequency harmonics and combination absorption of molecules, resulting in broad absorption peaks with significant overlap, making signal extraction difficult.

[0006] 2. Background interference

[0007] Human tissues, such as skin, muscles, and bones, are strong near-infrared absorbers, significantly interfering with the signal and drowning out the significant background information needed for analysis. Therefore, tissue background interference is a major factor affecting detection accuracy.

[0008] 3. Individual heterogeneity

[0009] The heterogeneity of human biological tissue causes multiple reflections and scattering of light within the tissue, resulting in weakened and mixed optical signals and reduced spectral signal strength. Differences in skin pigmentation affect the penetration depth of near-infrared light and tissue reflectivity, and individuals with different skin colors may exhibit varying degrees of spectral signal attenuation.

[0010] 4. Position and orientation of the measurement area

[0011] The measurement positions of physiological indicators in different parts of the body may affect the light penetration depth and signal strength. At the same time, different measurement postures may block and interfere with the light signal, resulting in signal weakening.

[0012] Currently, no effective solutions have been proposed to address the problems existing in related technologies, such as weak signals, background interference, individual heterogeneity, and difficulty in extracting effective information from strong background spectra.

[0013] Summary of the Invention

[0014] The purpose of the present invention is to address the deficiencies in the existing technology and provide a human health detection method and device based on skin temperature control to solve the problems existing in the related technology such as weak signal, background interference, individual heterogeneity, and difficulty in extracting effective information from strong background spectra.

[0015] To achieve the above object, the technical solution adopted by the present invention is:

[0016] In a first aspect, a human health detection method based on skin temperature control is provided, comprising:

[0017] Obtain skin temperature at the contact site;

[0018] Determining whether the skin temperature reaches a preset temperature threshold;

[0019] generating a temperature adjustment instruction to change the skin temperature when the skin temperature does not reach a preset temperature threshold;

[0020] When the skin temperature reaches a preset temperature threshold, generating a light emission instruction so that a light signal of a preset wavelength illuminates the skin at the contact position;

[0021] acquiring a feedback signal from the skin at the contact position, wherein the feedback signal corresponds to the light signal;

[0022] Calculate physiological indicators based on the skin temperature and the feedback signal.

[0023] In some embodiments, after obtaining the feedback signal of the skin at the contact position, the method further includes:

[0024] performing data processing on the feedback signal to obtain optical data;

[0025] A physiological index is calculated according to the skin temperature and the light data.

[0026] In some embodiments, the preset wavelength of the optical signal is 300 nm to 10 μm.

[0027] In some embodiments, the preset wavelength of the optical signal is 980 nm, 1400 nm, 1540 nm, or 1575 nm.

[0028] In some embodiments, the preset temperature threshold is -10°C to 60°C.

[0029] In some embodiments, the preset temperature threshold is 25°C, 30°C, or 35°C.

[0030] In a second aspect, a human health detection device based on skin temperature control is provided, wherein the human health detection device is removably disposed on the user's skin and forms a contact position with the user's skin, and is used to perform the human health detection method as described in the first aspect, including:

[0031] a temperature control module, the temperature control module being in contact with the skin at the contact location and being used to control the skin temperature at the contact location to a preset temperature;

[0032] The spectrum detection module is used to transmit a light signal to the contact position when the skin temperature reaches a preset temperature, receive a feedback signal from the contact position, and calculate and obtain a physiological index based on the feedback signal.

[0033] In some embodiments, the temperature control module includes:

[0034] a temperature control unit, the temperature control unit being in contact with the skin at the contact position and being used to control the skin temperature at the contact position to a preset temperature;

[0035] A temperature monitoring unit is used to monitor the skin temperature at the contact location.

[0036] In some embodiments, the temperature control unit includes:

[0037] a temperature control element, the temperature control element being in contact with the skin at the contact location and being used to control the skin temperature at the contact location to a preset temperature;

[0038] A first transparent element is provided through the temperature control element and is used for allowing the light signal and / or the feedback signal to pass through.

[0039] In some embodiments, the spectrum detection module includes:

[0040] an emitting unit, configured to emit an optical signal having a preset wavelength toward the contact position when the skin temperature meets a preset temperature threshold;

[0041] The spectral unit is used to obtain a feedback signal of the contact position and process the feedback signal to obtain optical data.

[0042] In some embodiments, further comprising:

[0043] A control module is connected to the temperature control module and the spectrum detection module respectively, and is used to control the temperature control module and the spectrum detection module respectively.

[0044] In some embodiments, further comprising:

[0045] A wearable module is connected to the temperature control module, the spectrum detection module, and the control module respectively, and is removably arranged on the user's skin.

[0046] In some embodiments, the wearable module includes:

[0047] A main unit, wherein the main unit is connected to the temperature control module, the spectrum detection module, and the control module respectively;

[0048] The wearable unit is connected to the main unit and is used to removably place the main unit on the user's skin.

[0049] In some embodiments, the main unit includes:

[0050] a shell element, the shell element being respectively connected to the temperature control module, the spectrum detection module, the control module, and the wearable unit;

[0051] A second transparent element is provided through the shell element and is used for allowing the light signal and / or feedback signal to pass through.

[0052] Compared with the prior art, the human health detection method and device based on skin temperature control of the present invention have the following technical effects:

[0053] 1) Control the skin temperature at the contact point to provide a stable temperature environment for subsequent health testing, eliminating interference from ambient temperature and human body temperature fluctuations;

[0054] 2) Use the temperature control module to control the skin temperature to ensure constant skin temperature and avoid data offset caused by temperature variables. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] FIG1 is a flow chart of a human health detection method according to an embodiment of the present invention;

[0056] FIG2 is a schematic diagram of a human health detection device according to an embodiment of the present invention (I);

[0057] FIG3 is a schematic diagram of a human health detection device according to an embodiment of the present invention (II);

[0058] FIG4 is a schematic diagram of a temperature control module according to an embodiment of the present invention;

[0059] FIG5 is a schematic diagram of a temperature control unit according to an embodiment of the present invention;

[0060] FIG6 is a framework diagram of a spectrum detection module according to an embodiment of the present invention;

[0061] FIG7 is a schematic diagram of a wearable module according to an embodiment of the present invention;

[0062] FIG8 is a schematic diagram of a main unit according to an embodiment of the present invention;

[0063] FIG9 is a schematic diagram showing the working principle of a human health detection device according to an embodiment of the present invention;

[0064] FIG10 is a schematic diagram of a specific implementation of a human health detection device according to an embodiment of the present invention;

[0065] [Corrected 06.03.2024 in accordance with Article 91]

[0066] The reference numerals are: 100, temperature control module; 110, temperature control unit; 111, temperature control element; 112, first permeable element; 120, temperature monitoring unit;

[0067] 200, spectrum detection module; 210, emission unit; 220, spectrum unit;

[0068] 300, control module;

[0069] 400, wearable module; 410, main unit; 411, shell element; 412, second transparent element; 420, wearable unit. DETAILED DESCRIPTION

[0070] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0071] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0072] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0073] Example 1

[0074] This embodiment relates to the human health detection method of the present invention.

[0075] As shown in FIG1 , a human health detection method based on skin temperature control includes:

[0076] Step S102: Acquire the skin temperature at the contact position;

[0077] Step S104: determining whether the skin temperature reaches a preset temperature threshold;

[0078] Step S106: if the skin temperature does not reach the preset temperature threshold, generate a temperature adjustment instruction to change the skin temperature;

[0079] Step S108: When the skin temperature reaches a preset temperature threshold, a light emission instruction is generated to cause a light signal of a preset wavelength to illuminate the skin at the contact position;

[0080] Step S110: Acquire a feedback signal from the skin at the contact position, wherein the feedback signal corresponds to the light signal;

[0081] Step S112: Calculate physiological indicators based on skin temperature and feedback signals.

[0082] In the present invention, spectral sensing can be performed in a reflection mode or in a transmission mode.

[0083] In step S104 , whether the skin temperature reaches the preset temperature threshold refers to whether the skin temperature reaches the preset temperature threshold.

[0084] In step S104, the preset temperature threshold is -10°C to 60°C.

[0085] In step S104 , the preset temperature thresholds are 10° C., 15° C., 20° C., 25° C., 30° C., 35° C., 40° C., and 45° C.

[0086] In step S106 , the skin temperature not reaching the preset temperature threshold means that the skin temperature is greater than the preset temperature threshold.

[0087] In step S106 , after the temperature adjustment command is generated, steps S102 to S104 are repeated.

[0088] In step S106, the temperature adjustment instruction is to control the temperature control unit to work to change the skin temperature. When the temperature control unit is working, the PID algorithm is used to dynamically adjust the working power of the temperature control unit so that the skin temperature can be stabilized at a preset temperature threshold.

[0089] In step S108 , the preset wavelength of the optical signal is 300 nm to 10 μm.

[0090] In step S108 , the preset wavelengths of the optical signal are 980 nm, 1400 nm, 1540 nm, and 1575 nm.

[0091] In step S110 , the feedback signal includes but is not limited to a reflected light signal and a transmitted light signal.

[0092] In some embodiments, after step S110, the method further includes:

[0093] performing data processing on the feedback signal to obtain optical data;

[0094] Calculate physiological indicators based on skin temperature and light data.

[0095] Among them, data processing includes detection and spectral information extraction.

[0096] In step S112 , physiological indicators include but are not limited to blood sugar.

[0097] The technical effects of this embodiment are as follows:

[0098] 1) Control the skin temperature at the contact point to provide a stable temperature environment for subsequent health testing, eliminating interference from ambient temperature and human body temperature fluctuations.

[0099] Example 2

[0100] This embodiment relates to the human health detection device of the present invention.

[0101] An exemplary embodiment of the present invention, as shown in Figures 2 and 3, is a human health monitoring device based on skin temperature control. The human health monitoring device is removably mounted on the user's skin and forms a contact position with the user's skin, and is used to perform the human health monitoring method described in Example 1. The device includes a temperature control module 100 and a spectral detection module 200. The temperature control module 100 contacts the skin at the contact position and is used to control the skin temperature at the contact position to a preset temperature. The spectral detection module 200 is used to transmit a light signal to the contact position when the skin temperature reaches the preset temperature, receive a feedback signal from the contact position, and calculate physiological indicators based on the feedback signal.

[0102] As shown in Figure 4, the temperature control module 100 includes a temperature control unit 110 and a temperature monitoring unit 120. The temperature control unit 110 contacts the skin at the contact location and is used to control the skin temperature at the contact location to a preset temperature; the temperature monitoring unit 120 is used to monitor the skin temperature at the contact location.

[0103] In some embodiments, the temperature monitoring unit 120 includes but is not limited to a temperature sensor.

[0104] As shown in Figure 5, the temperature control unit 110 includes a temperature control element 111 and a first transmissive element 112. The temperature control element 111 contacts the skin at the contact location and is used to control the skin temperature at the contact location to a preset temperature. The first transmissive element 112 extends through the temperature control element 111 and allows light signals and / or feedback signals to pass through.

[0105] The temperature control element 111 controls the skin temperature by regulating and maintaining. Regulating refers to adjusting the skin temperature to a preset temperature (such as heating or cooling), and maintaining refers to keeping the skin temperature stable at a preset temperature.

[0106] In some embodiments, the temperature control element 111 is a semiconductor refrigeration chip.

[0107] The size of the first permeable element 112 matches the size of the temperature control element 111. Generally, the radial size (such as diameter) of the first permeable element 112 is smaller than the radial size (such as length and width) of the temperature control element 111, and the axial size (such as depth) of the first permeable element 112 is smaller than that of the temperature control element 111.

[0108] The number of the first transparent element 112 is at least one.

[0109] In some embodiments, there are multiple first permeable elements 112 , which are spaced apart along the radial direction (eg, the length direction) of the temperature control element 111 .

[0110] In the case that there are multiple first transparent elements 112 , the sizes of the multiple first transparent elements 112 may be the same or different and can be designed as needed.

[0111] In some embodiments, there are two first transparent elements 112 , wherein one first transparent element 112 is used for transmitting the light signal, and the other first transparent element 112 is used for transmitting the feedback signal.

[0112] In some embodiments, the first transparent element 112 is a first transparent hole.

[0113] As shown in Figure 6, the spectrum detection module 200 includes an emitting unit 210 and a spectral unit 220. The emitting unit 210 is configured to emit a light signal having a preset wavelength toward the contact location when the skin temperature meets a preset temperature threshold; the spectral unit 220 is configured to obtain a feedback signal from the contact location and process the feedback signal to obtain optical data.

[0114] In some embodiments, the emission unit 210 includes but is not limited to a light source.

[0115] In some embodiments, the spectral unit 220 includes but is not limited to a spectral sensor.

[0116] Furthermore, the human health detection device further includes a control module 300. The control module 300 is connected to the temperature control module 100 and the spectrum detection module 200 respectively, and is used to control the temperature control module 100 and the spectrum detection module 200 respectively.

[0117] The control module 300 includes a control element, a power element, and a storage element. The control element is connected to the temperature control module 100 and the spectrum detection module 200 respectively; the power element is connected to the control element for power supply; and the storage element is connected to the control element for data storage.

[0118] Specifically, the control element is connected to the temperature control unit 110 , the temperature monitoring unit 120 , the emission unit 210 , and the spectrum unit 220 , respectively.

[0119] More specifically, the control elements are connected to the temperature control elements 111 , respectively.

[0120] In some embodiments, the control element includes but is not limited to a processor, a single chip microcomputer, etc., which can be connected to the above-mentioned electrical components through an interface.

[0121] In some embodiments, the power supply element includes but is not limited to a lithium battery.

[0122] In some embodiments, the storage element includes but is not limited to a memory card, a mechanical hard disk, a solid-state drive, etc.

[0123] Furthermore, the human health detection device further includes a wearable module 400. The wearable module 400 is respectively connected to the temperature control module 100, the spectrum detection module 200, and the control module 300, and is removably disposed on the user's skin.

[0124] As shown in Figure 7, the wearable module 400 includes a main unit 410 and a wearable unit 420. The main unit 410 is connected to the temperature control module 100, the spectrum detection module 200, and the control module 300 respectively; the wearable unit 420 is connected to the main unit 410 to removably attach the main unit 410 to the user's skin.

[0125] As shown in Figure 8, the main unit 410 includes a housing element 411 and a second transmissive element 412. The housing element 411 is connected to the temperature control module 100, the spectrum detection module 200, the control module 300, and the wearable unit 420. The second transmissive element 412 extends through the sidewall of the housing element 411 to allow light signals and / or feedback signals to pass through.

[0126] Specifically, the shell element 411 is connected to the temperature control unit 110 , the temperature monitoring unit 120 , the emission unit 210 , and the spectrum unit 220 , respectively.

[0127] The cross section of the shell member 411 is rectangular, circular, or the like.

[0128] Generally, a temperature control element 111 is provided at the bottom of the shell element 411 , and an emission unit 210 , a spectrum unit 220 and a control module 300 are provided inside the shell element 411 .

[0129] The dimensions of the shell element 411 match those of the temperature control element 111. Generally, the radial dimensions (e.g., length, width, diameter) of the shell element 411 are not less than the radial dimensions (e.g., length, width, diameter) of the temperature control element 111, and the axial dimensions (e.g., height) of the shell element 411 are greater than the axial dimensions (e.g., height) of the temperature control element 111.

[0130] In some embodiments, the temperature control element 111 may serve as an end surface of the shell element 411 .

[0131] The size of the second permeable element 412 matches the size of the shell element 411. Generally, the radial size (such as diameter) of the second permeable element 412 is smaller than the radial size (such as length and width) of the shell element 411, and the axial size (such as depth) of the second permeable element 412 is smaller than that of the shell element 411.

[0132] The size of the second permeable element 412 matches the size of the first permeable element 112. Generally, the radial dimension of the second permeable element 412 is equal to the radial dimension of the first permeable element 112.

[0133] The number of the second permeable elements 412 matches the number of the first permeable elements 112. Generally, the number of the second permeable elements 412 is equal to the number of the first permeable elements 112.

[0134] The number of the second transparent element 412 is at least one.

[0135] In some embodiments, there are multiple second permeable elements 412 , which are spaced apart along the radial direction (eg, the length direction) of the shell element 411 .

[0136] In the case that there are multiple second transparent elements 412 , the sizes of the multiple second transparent elements 412 may be the same or different and may be designed as needed.

[0137] In some embodiments, there are two second transparent elements 412 , wherein one second transparent element 412 corresponds to one first transparent element 112 for transmitting the light signal, and another second transparent element 412 corresponds to another first transparent element 112 for transmitting the feedback signal.

[0138] In some embodiments, the second transparent element 412 is a second transparent hole.

[0139] In some embodiments, there are two wearable units 420. The first end of one wearable unit 420 is connected to one end of the shell element 411, the first end of the other wearable unit 420 is connected to the other end of the shell element 411, and the second ends of the two wearable units 420 are connected to each other, so that the shell element 411 is fixed to the user's skin.

[0140] In some embodiments, the wearable unit 420 is an adhesive strap.

[0141] In some embodiments, there is one wearable unit 420. A first end of the wearable unit 420 is connected to one end of the shell element 411, and a second end of the wearable unit 420 is wrapped around the user's skin and self-adhesive.

[0142] In some embodiments, the wearable unit 420 includes but is not limited to a wristband or an armband.

[0143] The method of using the utility model is as follows:

[0144] Place the temperature control element 111 at the position to be detected on the user's skin, and make contact with the user's skin;

[0145] The wearable unit 420 is used to fix the human health detection device to the user's skin;

[0146] Set preset temperature thresholds;

[0147] The control element controls the temperature control element 111 to perform temperature control;

[0148] The temperature monitoring unit 120 monitors the skin temperature of the contact position in real time;

[0149] When the skin temperature reaches a preset temperature threshold, the control element controls the emission unit 210 to emit a light signal of a preset wavelength;

[0150] The light signal is transmitted to the skin at the contact site;

[0151] The optical signal optically excites a substance in the tissue fluid of the skin at the contact location and generates a feedback signal;

[0152] The feedback signal is transmitted to the spectral unit 220;

[0153] The spectrum unit 220 performs analog-to-digital processing on the feedback signal to obtain optical data;

[0154] The control component performs calculations based on the light data and the skin temperature transmitted by the temperature monitoring unit 120 to obtain physiological indicators.

[0155] The technical effects of the present invention are as follows:

[0156] 1) Use the temperature control module to control the skin temperature to ensure constant skin temperature and avoid data offset caused by temperature variables;

[0157] 2) The spectral detection module uses the reflection mode to collect the feedback signal to improve the signal-to-noise ratio.

[0158] Example 3

[0159] This embodiment is a specific implementation of the present invention.

[0160] [Corrected 06.03.2024 in accordance with Rule 91] As shown in Figures 9 and 10, a physiological indicator detector based on spectral sensing includes a housing 2A, a strap 2F, a power module 2B, a controller 2C, a cooling plate 2E, a temperature sensor 2G, a light source 1A, and a spectral sensor 1B. The strap 2F secures the housing 2A to the human skin; the power module 2B, controller 2C, light source 1A, and spectral sensor 1B are all located within the housing 2A; the cooling plate 2E and temperature sensor 2G are located outside the housing 2A and are positioned in close contact with the human skin.

[0161] The controller 2C is electrically connected to the power module 2B, the cooling plate 2E, the temperature sensor 2G, the light source 1A, and the spectrum sensor 1B respectively.

[0162] The strap 2F fixes the physiological indicator detector on the human skin. The light source 1A is installed on the shell 2A and is electrically connected to the controller 2C. The cooling plate 2E is fixed to the surface of the shell 2A and fits tightly to the skin of the human arm through pre-made small holes. The temperature sensor 2G is attached to the surface of the cooling plate 2E to detect the temperature of the human skin. The controller 2C is electrically connected to the cooling plate 2E to change the temperature of the human skin through the cooling plate 2E.

[0163] Among them, the cooling plate 2E is a semiconductor cooling plate.

[0164] The wavelength of the light source 1A may be 300 nm to 10 μm, preferably 980 nm, 1400 nm, 1540 nm, or 1575 nm.

[0165] About the working principle of the present invention:

[0166] As shown in Figure 9, human skin tissue includes the epidermis 1C, dermis 1D, and subcutaneous tissue 1E. The epidermis 1C is connected to the dermis 1D and is typically less than 100 μm thick, making it very thin relative to the dermis 1D and easily penetrated. The dermis 1D is primarily a spatial network skeleton composed of protein fibers, filled with tissue fluid and containing only a small number of blood vessels. The dermis is generally 2 mm thick. When placed close to the skin, due to the high transmittance of human tissue to near-infrared light, the excitation light reaches a depth of 0.5-1.5 mm within the human skin, producing an optical excitation effect on substances in the tissue fluid, causing them to generate feedback signals. This feedback signal is then returned and collected by the spectral sensor 1B.

[0167] The method of using the present invention is as follows:

[0168] Step 1: Turn on the power switch, and the power module 2B supplies power to the light source 1A, the spectrum sensor 1B, the temperature sensor 2G, and the cooling plate 2E through the controller 2C.

[0169] Step 2: Use the strap 2F to fix the housing 2A to the human arm to limit the displacement of the housing 2A.

[0170] Step 3: Set the desired skin temperature T through controller 2C, monitor the skin temperature through temperature sensor 2G, call the PID algorithm to dynamically adjust the operating power of cooling plate 2E, and wait for the skin temperature to stabilize at T. The preferred temperature values ​​of T are 25°C, 30°C, and 35°C.

[0171] Step 4: After the light source 1A emits light of a specified wavelength, the light reaches the detection site of the skin, generates optical stimulation to the substances in the tissue fluid, and the feedback signal is received by the spectrum sensor 1B.

[0172] Step 5: The value of the temperature sensor 2G and the ADC value converted from the light signal received by the spectrum sensor 1B are sent to the controller 2C, and the controller 2C calls the algorithm in the built-in data storage module to calculate the value of human physiological indicators.

[0173] Generally, human physiological indicators include but are not limited to blood sugar.

[0174] The advantages of the present invention are as follows:

[0175] 1) Use the reflection mode to collect the feedback signal and improve the signal-to-noise ratio.

[0176] 2) Cooperate with the cooling plate to control the temperature of human skin, thereby ensuring the constant temperature of human skin and avoiding data offset caused by temperature variables.

[0177] The above description is only a preferred embodiment of the present invention and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A human health detection method based on skin temperature control, characterized in that, Comprising: Obtain the skin temperature at the contact position; Determine whether the skin temperature reaches a preset temperature threshold; Generate a temperature adjustment instruction to change the skin temperature when the skin temperature does not reach the preset temperature threshold; Generate a light emission instruction to irradiate the skin at the contact position with a light signal when the skin temperature reaches the preset temperature threshold; Obtain the feedback signal of the skin at the contact position, wherein the feedback signal corresponds to the light signal; Calculate physiological indexes according to the skin temperature and the feedback signal.

2. The human body health detection method according to claim 1, characterized in that After obtaining the feedback signal of the skin at the contact position, it further comprises: Perform data processing on the feedback signal to obtain optical data; Calculate physiological indexes according to the skin temperature and the optical data.

3. The human body health detection method according to claim 1 or 2, characterized in that, The preset wavelength of the light signal is 300 nm to 10 μm; and / or The preset temperature threshold is -10°C to 60°C.

4. A human health detection device based on skin temperature control, wherein the human health detection device is removably disposed on the skin of a user and forms a contact position with the skin of the user for performing the human health detection method according to any one of claims 1 to 3, characterized in that, Comprising: A temperature control module, which is in contact with the skin at the contact position and is used to control the skin temperature at the contact position to a preset temperature; A spectral detection module, which is used to emit a light signal to the contact position, receive the feedback signal of the contact position, and calculate and obtain physiological indexes according to the feedback signal when the skin temperature reaches the preset temperature.

5. The human body health detection device according to claim 4, characterized in that, The temperature control module includes: A temperature control unit, which is in contact with the skin at the contact position and is used to control the skin temperature at the contact position to a preset temperature; A temperature monitoring unit, which is used to monitor the skin temperature at the contact position.

6. The human body health detection device according to claim 5, characterized in that, The temperature control unit includes: A temperature control element, which is in contact with the skin at the contact position and is used to control the skin temperature at the contact position to a preset temperature; A first transmission element, which is arranged through the temperature control element and is used to allow the light signal and / or the feedback signal to pass through.

7. The human body health detection device according to claim 4, characterized in that, The spectral detection module includes: An emission unit, which is used to emit a light signal with a preset wavelength to the contact position when the skin temperature meets the preset temperature threshold; A spectral unit, which is used to obtain the feedback signal of the contact position and process the feedback signal to obtain optical data.

8. The human body health detection device according to any one of claims 4 to 7, characterized in that It further comprises: A control module, which is respectively connected to the temperature control module and the spectral detection module and is used to control the temperature control module and the spectral detection module respectively; and / or A wearable module, which is respectively connected to the temperature control module, the spectral detection module and the control module and is removably arranged on the skin of the user.

9. The human body health detection device according to claim 8, characterized in that, The wearable module includes: A main body unit, which is respectively connected to the temperature control module, the spectral detection module and the control module; A wearing unit, which is connected to the main body unit and is used to removably arrange the main body unit on the skin of the user.

10. The human body health detection device according to claim 9, characterized in that The main body unit includes: A shell element, which is respectively connected to the temperature control module, the spectral detection module, the control module and the wearing unit; A second transmission element, which is arranged through the shell element and is used to allow the light signal and / or the feedback signal to pass through.

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