Biological index measurement module and wearable device

Abstract

The invention provides a biological index measurement module and wearable equipment, and belongs to the technical field of wearable equipment. The biological index measuring module comprises a light emitting assembly and a sensing assembly; the light emitting assembly comprises a first light-emitting part, a second light-emitting part and a first lens, the first light-emitting part and the second light-emitting part are adjacently arranged, and the first light-emitting part is located on the side, opposite to the sensing assembly, of the second light-emitting part; the first lens is located on the light-emitting sides of the first light-emitting part and the second light-emitting part. A first light channel and a second light channel are arranged in the first lens, the first light channel corresponds to the first light-emitting part in position, and the second light channel corresponds to the second light-emitting part in position. According to the biological index measurement module, targeted optical path design is carried out on different biological indexes, and the quality of optical signals is improved, so that signal processing requirements are reduced, data errors are reduced, and the adaptability and robustness of the biological index measurement module are improved.

Description

Technical Field

[0001] This application relates to the technical field of wearable devices, and particularly relates to a biological index measurement module and a wearable device. Background Art

[0002] As wearable devices have gradually upgraded from the product positioning of sports assistants and entertainment tools to health companions, using Photoplethysmography (PPG) to measure heart rate (HR), blood oxygen saturation (SpO2) and other biological indicators has also become one of the necessary functions of wearable devices.

[0003] In related technologies, the working principle of Photoplethysmography is to measure biological indicators by using the absorption and reflection of light. However, different biological indicators have different requirements for the wavelength, permeability, etc. of light, and there are also differences in the layout methods of optoelectronic structures, which limits the layout methods of optoelectronic structures. Summary of the Invention

[0004] This application provides a biological index measurement module and a wearable device, which can solve the problem that different biological indicators have different requirements for the wavelength, permeability, etc. of light, and there are also differences in the layout methods of optoelectronic structures, which limits the layout methods of optoelectronic structures.

[0005] The technical solutions are as follows:

[0006] On the one hand, a biological index measurement module is provided, and the biological index measurement module includes: a light emitting component and a sensing component;

[0007] The light emitting component includes a first light emitting element, a second light emitting element and a first lens. The first light emitting element and the second light emitting element are arranged adjacent to each other, and the first light emitting element is located on the side of the second light emitting element facing away from the sensing component; the first lens is located on the light emitting side of the first light emitting element and the second light emitting element; the first lens is provided with a first light channel and a second light channel, the first light channel corresponds to the position of the first light emitting element, and the second light channel corresponds to the position of the second light emitting element.

[0008] In some embodiments, both the first light channel and the second light channel are total reflection light channels.

[0009] In some embodiments, the first light emitting element emits red light or infrared light, and the second light emitting element emits green light.

[0010] In some embodiments, the first lens is provided with a filling medium, and the filling medium divides the first lens into the first light channel and the second light channel.

[0011] In some embodiments, the first lens includes a light incident surface and a light exiting surface. A total reflection layer is provided on the side surface between the light incident surface and the light exiting surface. The total reflection layer and the filling medium enclose the first optical channel and the second optical channel.

[0012] In some embodiments, the sensing assembly includes a photoelectric sensing element and a second lens; the second lens is located on the light incident side of the photoelectric sensing element.

[0013] In some embodiments, a third optical channel is provided in the second lens. The third optical channel is a total reflection optical channel; the position of the photoelectric sensing element corresponds to the position of the third optical channel.

[0014] In some embodiments, the biological index measurement module further includes a signal processing assembly. The signal processing assembly is electrically connected to the sensing assembly, and the signal processing assembly is configured to determine a biological index according to the sensing result of the sensing assembly.

[0015] In some embodiments, the signal processing assembly includes a signal adjustment module, a filtering module, and a data analysis module;

[0016] The signal adjustment module is electrically connected to the sensing assembly. The signal adjustment module is configured to amplify and adjust the electrical signal output by the sensing assembly and output an amplified signal;

[0017] The filtering module is electrically connected to the signal adjustment module. The filtering module is configured to perform digital filtering and algorithm calibration on the amplified signal output by the signal adjustment module and output a processed signal;

[0018] The data analysis module is electrically connected to the filtering module. The data analysis module is configured to perform data analysis and algorithm optimization on the processed signal output by the filtering module and output a biological index.

[0019] On the other hand, a wearable device is provided. The wearable device includes: the biological index measurement module described in this application.

[0020] In some embodiments, the wearable device further includes a display module. The biological index measurement module further includes a signal processing assembly. The display module is electrically connected to the signal processing assembly, and the display module is configured to display the biological index determined by the signal processing assembly.

[0021] The beneficial effects brought by the technical solution provided in this application at least include:

[0022] The biological index measurement module of the present application includes a light emission component and a sensing component. The light emission component includes a first light emitting element, a second light emitting element, and a first lens. The first light channel in the first lens corresponds to the first light emitting element, and the second light channel corresponds to the second light emitting element. The light rays emitted by the first light emitting element and the second light emitting element are transmitted along different light channels respectively. After irradiating the skin tissue, the two light rays can be transmitted or reflected along their respective light paths. The light paths of the two light signals are separated from each other and can meet the different requirements of different biological indices for the wavelength, permeability, etc. of light. By carrying out targeted optical path design for different biological indices, it is beneficial to improve the quality of the light signal, thereby reducing the need for signal processing, reducing data errors, and improving the adaptability and robustness of the biological index measurement module. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0024] Figure 1 is a schematic structural diagram of a biological index measurement module provided by the related art;

[0025] Figure 2 is a schematic structural diagram of a biological index measurement module provided by an embodiment of the present application;

[0026] Figure 3 is a cross-sectional structural view of a first lens provided by an embodiment of the present application;

[0027] Figure 4 is an exploded structural view of a first lens provided by an embodiment of the present application;

[0028] Figure 5 is a schematic structural diagram of a first lens provided by another embodiment of the present application;

[0029] Figure 6 is a cross-sectional structural view of a second lens provided by an embodiment of the present application;

[0030] Figure 7 is a structural block diagram of a biological index measurement module provided by an embodiment of the present application;

[0031] Figure 8 is a structural block diagram of a biological index measurement module provided by an embodiment of the present application;

[0032] Figure 9 is a schematic structural diagram of a wearable device provided by an embodiment of the present application;

[0033] Figure 10It is a structural block diagram of a wearable device provided by an embodiment of the present application.

[0034] The reference numerals in the figure are respectively represented as:

[0035] 100, biological index measurement module;

[0036] 200, skin tissue;

[0037] 300, user interface;

[0038] 400, display module;

[0039] 1, light emitting component;

[0040] 11, first light emitting element; 12, second light emitting element; 13, first lens; 131, first light channel; 132, second light channel; 133, filling medium; 134, light incident surface; 135, light exit surface; 136, side surface; 137, total reflection layer;

[0041] 2, induction component;

[0042] 21, photoelectric induction element; 22, second lens; 221, third light channel;

[0043] 3, signal processing component;

[0044] 31, signal adjustment module; 32, filtering module; 33, data analysis module. Detailed implementation manners

[0045] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the Figure 2 orientation or positional relationship shown, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0047] It should be understood that in this application, "electrically connected" can be understood as physical contact and electrical conduction between components; it can also be understood as a form of connection between different components in a circuit structure through physical lines such as copper foils or wires of a printed circuit board (PCB) that can transmit electrical signals. "Communication connection" can refer to the transmission of electrical signals, including wireless communication connections and wired communication connections. Wireless communication connections do not require a physical medium and do not belong to the connection relationship that defines the product structure. "Connected" and "linked" can both refer to a mechanical connection relationship or a physical connection relationship, that is, A is connected to B or A is linked to B can mean that there are fastening components (such as screws, bolts, rivets, etc.) between A and B, or A and B are in contact with each other and it is difficult to separate A and B.

[0048] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by those of ordinary skill in the art.

[0049] Photoplethysmography (PPG for short) is a non-invasive monitoring method that uses optoelectronic means to monitor blood volume changes in skin tissue.

[0050] Among the biological indicators measured using PPG, the most common ones are heart rate and blood oxygen saturation. Among them, the principle of heart rate detection is that the blood volume of the human body changes pulsatively with the heartbeat, and the light intensity received by the light sensor also changes pulsatively. By converting the light intensity change signal into an electrical signal, the heart rate value can be calculated. The principle of blood oxygen saturation measurement is that oxyhemoglobin and deoxyhemoglobin in oxygen have different absorption spectra for red light (660nm) and infrared light (940nm). By measuring the magnitude of the transmitted or reflected light intensity, the blood oxygen saturation can be determined.

[0051] In related technologies, red light or infrared light is usually used for blood oxygen saturation measurement, and green light is used for heart rate measurement.

[0052] Red light has good penetration in skin tissue and can penetrate deep into the tissue. The measurement of blood oxygen requires deep tissue in the skin. Therefore, the red light source needs to be kept at a relatively long distance from the light sensor to ensure that the red light has sufficient penetration depth.

[0053] However, green light is strongly absorbed in the skin and requires closer contact to obtain a clear signal. Therefore, the green light source needs to be brought closer to the light sensor to reduce the penetration loss of green light. This increases the stacking difficulty of the light source and the light sensor.

[0054] In addition, the PPG structure in related technologies is as Figure 1As shown, the various types of light emitted by the light source 001 are not split, and the paths of the various types of light are basically coincident. That is, the paths of the blood oxygen measurement light and the heart rate measurement light are basically coincident. The distance between the blood oxygen measurement light and the light sensor 002 is too close, and the blood oxygen measurement light lacks sufficient penetration depth, resulting in distorted blood oxygen measurement data. At the same time, the optical path of some of the heart rate measurement light is elongated, the distance between the heart rate measurement light and the light sensor 002 is too large, and a large amount of the heart rate measurement light is absorbed by the skin tissue 003, and the light sensor 002 cannot obtain a clear optical signal, affecting the accuracy of the heart rate measurement.

[0055] In addition, the related art also adopts the method of increasing the number of light sensors or light sources to solve the stacking contradiction between the light source and the light sensor, but this will increase the cost and cannot be applied to the limited stacking space in wearable devices.

[0056] Therefore, the present application provides a biological index measurement module, which performs targeted optical path design for different biological indexes, improves the quality of different optical signals, thereby reducing the need for signal processing, reducing data errors, and improving the adaptability and robustness of the biological index measurement module.

[0057] To make the purpose, technical solution and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0058] On the one hand, as shown in combination with Figures 2 to 5 This embodiment provides a biological index measurement module 100, and the biological index measurement module 100 includes: a light emitting component 1 and a sensing component 2.

[0059] The light emitting component 1 includes a first light emitting element 11, a second light emitting element 12 and a first lens 13. The first light emitting element 11 and the second light emitting element 12 are arranged adjacent to each other, and the first light emitting element 11 is located on the side of the second light emitting element 12 facing away from the sensing component 2; the first lens 13 is located on the light emitting side of the first light emitting element 11 and the second light emitting element 12; the first lens 13 is provided with a first light channel 131 and a second light channel 132, the first light channel 131 corresponds to the position of the first light emitting element 11, and the second light channel 132 corresponds to the position of the second light emitting element 12.

[0060] The bio-indicator measurement module 100 of the present embodiment comprises a light emitting component 1 and a sensing component 2, wherein the light emitting component 1 comprises a first light emitting member 11, a second light emitting member 12 and a first lens 13, a first optical channel 131 in the first lens 13 corresponds to the first light emitting member 11, and a second optical channel 132 corresponds to the second light emitting member 12, and the light emitted by the first light emitting member 11 and the second light emitting member 12 are transmitted along different optical channels respectively, and after irradiating the skin tissue 200 (for example, the fingertip skin tissue 200 and the wrist skin tissue 200), the two kinds of light can be transmitted or reflected along their respective optical paths, and the optical paths of the two optical signals are separated from each other, and can meet the different requirements of different bio-indicators on the wavelength, transmittance and the like of the light, and targeted optical path design for different bio-indicators is conducive to improving the quality of the optical signal, thereby reducing the demand for signal processing, reducing data errors, and improving the adaptability and robustness of the bio-indicator measurement module 100.

[0061] By utilizing the first optical channel 131 and the second optical channel 132 in the first lens 13, the first light emitted by the first light-emitting component 11 and the second light emitted by the second light-emitting component 12 can be split so that the two light rays are respectively irradiated on different areas of the skin tissue 200, thereby the first light ray and the second light ray transmitted or reflected to the sensing component 2 have differences in penetration depth, optical path length, etc.

[0062] Exemplarily, the first light emitted by the first light-emitting component 11 has strong penetration in the skin tissue 200 and is used to measure blood oxygen saturation. The second light emitted by the second light-emitting component 12 has a high absorption rate in the skin tissue 200 and is used to measure heart rate. In order to ensure that sufficient second light is transmitted or reflected onto the sensing component 2, the second light-emitting component 12 is closer to the sensing component 2 than the first light-emitting component 11, that is, the distance between the first light-emitting component 11 and the sensing component 2 is greater than the distance between the second light-emitting component 12 and the sensing component 2.

[0063] In some possible implementations, biological indicators include but are not limited to heart rate, blood oxygen saturation, blood pressure, sleep status, pulse wave, etc.

[0064] In some other possible implementations, the types of the first light-emitting element 11 and the second light-emitting element 12 include but are not limited to LED (light-emitting diode), OLED (Organic light-emitting diode), CCFL (Cold Cathode Fluorescent Lamp), laser diode, etc. The types of the first light-emitting element 11 and the second light-emitting element 12 may be the same or different.

[0065] Optionally, both the first light-emitting component 11 and the second light-emitting component 12 are LEDs.

[0066] It should be noted that in this embodiment, the number of light-emitting components in the light-emitting assembly 1 is not limited to two, and can also be three, four, etc. The number of light channels in the first lens 13 is not limited to two, and can also be three, four, etc.

[0067] In some embodiments, both the first light channel 131 and the second light channel 132 are total reflection light channels.

[0068] Total reflection means that when light rays travel from one medium to another, if the incident angle is greater than the critical angle, the light rays will be completely reflected back into the original medium without penetrating into the other medium. In the case of total reflection, the light rays will not refract but will be completely reflected back into the original medium. This phenomenon usually occurs when light rays travel from an optically denser medium (such as glass or water) to an optically less dense medium (such as air). The critical angle is the incident angle of the light rays at the medium interface, and when the incident angle is greater than the critical angle, total reflection will occur.

[0069] By designing the first light channel 131 and the second light channel 132 as total reflection light channels, the light rays emitted by the first light-emitting component 11 and the second light-emitting component 12 will all be transmitted along the first light channel 131 or the second light channel 132. The two kinds of light rays can irradiate the skin tissue 200 more efficiently, with a higher light utilization rate, and are conducive to realizing the splitting of the first light ray emitted by the first light-emitting component 11 and the second light ray emitted by the second light-emitting component 12, and improving the quality of the optical signals of the first light ray and the second light ray.

[0070] In some embodiments, the first light-emitting component 11 emits red light or infrared light, and the second light-emitting component 12 emits green light.

[0071] Reference Figure 2 As shown, considering that red light or infrared light has good permeability in the skin tissue 200 and can penetrate deep into the tissue, and the measurement of blood oxygen needs to be carried out in the deep tissue of the skin, the first light-emitting component 11 that can emit a red light source or infrared light is kept at a relatively far distance from the sensing component 2 to ensure that the red light has sufficient penetration depth. Green light has strong absorption in the skin and requires closer contact to obtain a clear signal. The second light-emitting component 12 that can emit green light is kept at a relatively close distance from the sensing component 2 to reduce the penetration loss of the green light.

[0072] With the above arrangement, the biological index measurement module 100 of this embodiment can achieve the stacked arrangement of the light emitting component 1 and the sensing component 2 on the premise of meeting the different requirements for light in blood oxygen saturation measurement and heart rate measurement. The stacking of the light emitting component 1 and the sensing component 2 is relatively compact, which can be applied to the limited stacking space in wearable devices, facilitating the miniaturization and microminiaturization development of wearable devices.

[0073] Combined with Figures 3 to 5 As shown, in some embodiments, a filling medium 133 is provided in the first lens 13, and the filling medium 133 divides the first lens 13 into a first light channel 131 and a second light channel 132.

[0074] By arranging a total reflection partition with a total reflection effect in the first lens 13, the light channels in the first lens 13 can be divided to form a first light channel 131 and a second light channel 132, so as to respectively transmit the light of the first light emitting element 11 and the second light emitting element 12.

[0075] Exemplarily, the refractive index of the material of the total reflection partition is greater than the refractive index of the material of the first lens 13, so that the light transmitted towards the filling medium 133 in the first lens 13 is completely reflected back into the first lens 13.

[0076] In some possible implementation manners, the shape of the light transmissive cross-section of the first lens 13 includes but is not limited to a circle, an ellipse, a quadrilateral, a polygon, etc. The shapes of the light transmissive cross-sections of the first light channel 131 and the second light channel 132 also include but are not limited to an ellipse, a quadrilateral, a polygon, etc. The present application does not make any limitation thereto. It should be noted that the shapes of the light transmissive cross-sections of the first light channel 131 and the second light channel 132 can be the same or different.

[0077] Exemplarily, referring to Figure 3 As shown, the shape of the light transmissive cross-section of the first lens 13 is a quadrilateral, and the shapes of the light transmissive cross-sections of the first light channel 131 and the second light channel 132 formed by dividing the filling medium 133 are also quadrilaterals.

[0078] Another exemplarily, referring to Figure 5 As shown, the shape of the light transmissive cross-section of the first lens 13 is a circle, and the shapes of the light transmissive cross-sections of the first light channel 131 and the second light channel 132 formed by dividing the filling medium 133 are both semi-circular.

[0079] Combined with Figures 3 to 5 As shown, in some embodiments, the first lens 13 includes a light incident surface 134 and a light exit surface 135, and a total reflection layer 137 is provided on the side surface 136 between the light incident surface 134 and the light exit surface 135. The total reflection layer 137 and the filling medium 133 enclose the first light channel 131 and the second light channel 132.

[0080] Among them, the light incident surface 134 faces the light-emitting sides of the first light-emitting element 11 and the second light-emitting element 12, and the light-emitting surface 135 faces the skin tissue 200 of the user.

[0081] By arranging a total reflection partition with a total reflection effect inside the first lens 13 and arranging a total reflection layer on the side surface 136 of the first lens 13, the total reflection layer 137 and the filling medium 133 can divide the light channels inside the first lens 13 to form two mutually isolated first light channels 131 and second light channels 132 with total reflection characteristics, so as to perform total reflection transmission on the light rays of the first light-emitting element 11 and the second light-emitting element 12 respectively.

[0082] Exemplarily, the refractive index of the material of the total reflection layer is greater than the refractive index of the material of the first lens 13, so that the light rays transmitted towards the total reflection layer 137 inside the first lens 13 are all reflected back into the first lens 13.

[0083] In this embodiment, the total reflection layer 137 wraps all the side surfaces 136 of the first lens 13. Figure 3 And Figure 4 Taking the cuboid-shaped first lens 13 shown as an example, the bottom surface of the cuboid forms the light incident surface 134, the top surface of the cuboid forms the light-emitting surface 135, and the four surfaces between the top surface and the bottom surface of the cuboid are the side surfaces 136 of the first lens 13. The total reflection layer 137 covers all the four side surfaces 136, so that the first light channel 131 and the second light channel 132 are configured as total reflection light channels that can only transmit light rays in the up and down directions. Taking Figure 5 the cylindrical first lens 13 shown as an example, the lower bottom surface of the cylinder forms the light incident surface 134, the upper bottom surface of the cylinder forms the light-emitting surface 135, and the curved surface between the upper bottom surface and the lower bottom surface of the cylinder is the side surface 136 of the first lens 13. The total reflection layer 137 covers all of this side surface 136, so that the first light channel 131 and the second light channel 132 are configured as total reflection light channels that can only transmit light rays in the up and down directions.

[0084] Combined with Figure 2 As shown, in some embodiments, the sensing component 2 includes a photoelectric sensing element 21 and a second lens 22; the second lens 22 is located on the light incident side of the photoelectric sensing element 21.

[0085] In this embodiment, the second lens 22 is located on the near-light side of the photoelectric sensing element 21. The light rays emitted by the light emission component 1 are transmitted or reflected in the skin tissue 200 and converted into light signals that can reflect biological index characteristics. These light signals enter the photoelectric sensing element 21 through the second lens 22, and the photoelectric sensing element 21 converts the light signals into electrical signals, and then determines the corresponding biological indexes by using the electrical signals.

[0086] Combined withFigure 6 As shown, in some embodiments, a third optical channel 221 is provided in the second lens 22, and the third optical channel 221 is a total reflection optical channel; the position of the photo - electric induction element 21 corresponds to the position of the third optical channel 221.

[0087] Through the above arrangement, the second lens 22 can use the third optical channel 221 with total reflection characteristics to transfer all the optical signals carrying biological index characteristics to the photo - electric induction element 21 as much as possible, thereby improving the detection accuracy of the optical induction element.

[0088] Combined with Figure 7 As shown, in some embodiments, the biological index measurement module 100 further includes a signal processing component 3. The signal processing component 3 is electrically connected to the induction component 2, and the signal processing component 3 is used to determine the biological index according to the induction result of the induction component 2. Through the above arrangement, after the optical signal is converted into an electrical signal by the signal processing component 3, the biological index is determined according to the electrical signal, thereby completing the measurement of the biological index.

[0089] Combined with Figure 8 As shown, in some embodiments, the signal processing component 3 includes a signal adjustment module 31, a filtering module 32, and a data analysis module 33.

[0090] The signal adjustment module 31 is electrically connected to the induction component 2. The signal adjustment module 31 is used to amplify and adjust the electrical signal output by the induction component 2 and output an amplified signal.

[0091] The filtering module 32 is electrically connected to the signal adjustment module 31. The filtering module 32 is used to perform digital filtering and algorithm calibration on the amplified signal output by the signal adjustment module 31 and output a processed signal.

[0092] The data analysis module 33 is electrically connected to the filtering module 32. The data analysis module 33 is used to perform data analysis and algorithm optimization on the processed signal output by the filtering module and output the biological index.

[0093] On the other hand, combined with Figure 9 and Figure 10 As shown, this embodiment provides a wearable device, and the wearable device includes: the biological index measurement module 100 of the present application.

[0094] The wearable device of this embodiment adopts the biological index measurement module 100 of the present application and has all the beneficial technical effects of all the embodiments herein.

[0095] In some possible implementations, a wearable device refers to an intelligent device that can be worn on the body and interact with the user. These devices also have a processor and wireless communication capabilities, and can monitor the user's health status, provide notifications, record exercise data, etc. Exemplarily, wearable devices include but are not limited to smart watches, smart bracelets, smart glasses, smart clothing, smart headphones, smart gloves, smart insoles, and so on.

[0096] In some possible implementations, the wearable device can be communicatively connected to other electronic devices, so that the biological indicators output by the biological indicator measurement module 100 can be displayed using the user interface 300 in other electronic devices.

[0097] Combined with Figure 10 As shown, in some embodiments, the wearable device further includes a display module 400, the biological indicator measurement module 100 further includes a signal processing component 3, the display module 400 is electrically connected to the signal processing component 3, and the display module 400 is configured to display the biological indicators determined by the signal processing component 3. By using the display module 400 of the wearable device, the biological indicators output by the biological indicator measurement module 100 can be displayed, which is convenient for the user to view.

[0098] In some possible implementations, the display module 400 includes any one of a plasma display panel (PDP), a vacuum fluorescent display (VFD), a field emission display (FED), a light emitting diode display (LED), an organic light-emitting diode display (OLED), a liquid crystal display (LCD), a micro-electro-mechanical system display (DMD), and an electronic ink (EL) display.

[0099] It should be noted that in the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0100] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more unless otherwise specifically defined.

[0101] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and diagonally above the second feature, or merely indicating that the first feature has a higher level height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and diagonally below the second feature, or merely indicating that the first feature has a lower level height than the second feature.

[0102] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of this application.

[0103] The above are only examples of this application and are not intended to limit this application. Any modifications, equivalent replacements, improvements, etc. made within the principles of this application shall be included within the protection scope of this application.

Claims

1. A biological index measurement module, characterized in that, The biological index measurement module (100) includes: a light emission component (1) and a sensing component (2); The light emission component (1) includes a first light emitting element (11), a second light emitting element (12), and a first lens (13). The first light emitting element (11) and the second light emitting element (12) are arranged adjacent to each other, and the first light emitting element (11) is located on a side of the second light emitting element (12) facing away from the sensing component (2). The first lens (13) is located on the light emitting side of the first light emitting element (11) and the second light emitting element (12). A first light channel (131) and a second light channel (132) are provided in the first lens (13). The first light channel (131) corresponds to the position of the first light emitting element (11), and the second light channel (132) corresponds to the position of the second light emitting element (12).

2. The biological index measurement module according to claim 1, wherein Both the first light channel (131) and the second light channel (132) are total reflection light channels.

3. The biological index measurement module according to claim 1, wherein The first light emitting element (11) emits red light or infrared light, and the second light emitting element (12) emits green light.

4. The biological index measurement module according to any one of claims 1 to 3, characterized in that A filling medium (133) is provided in the first lens (13), and the filling medium (133) divides the first lens (13) into the first light channel (131) and the second light channel (132).

5. The biological index measurement module according to claim 4, wherein The first lens (13) includes a light incident surface (134) and a light emitting surface (135). A total reflection layer (137) is provided on a side surface (136) between the light incident surface (134) and the light emitting surface (135). The total reflection layer (137) and the filling medium (133) enclose the first light channel (131) and the second light channel (132).

6. The biological index measurement module according to any one of claims 1 to 5, characterized in that The sensing component (2) includes a photoelectric sensing element (21) and a second lens (22). The second lens (22) is located on the light incident side of the photoelectric sensing element (21).

7. The biological index measurement module according to claim 6, wherein A third light channel (221) is provided in the second lens (22). The third light channel (221) is a total reflection light channel. The position of the photoelectric sensing element (21) corresponds to the position of the third light channel (221).

8. The biological index measurement module according to any one of claims 1 to 7, characterized in that, The biological index measurement module (100) further includes a signal processing component (3). The signal processing component (3) is electrically connected to the sensing component (2), and the signal processing component (3) is configured to determine a biological index according to the sensing result of the sensing component (2).

9. The biological index measurement module according to claim 8, wherein, The signal processing component (3) includes a signal adjustment module (31), a filtering module (32), and a data analysis module (33); The signal adjustment module (31) is electrically connected to the sensing component (2). The signal adjustment module (31) is configured to amplify and adjust the electrical signal output by the sensing component (2) and output an amplified signal; The filtering module (32) is electrically connected to the signal adjustment module (31). The filtering module (32) is configured to perform digital filtering and algorithm calibration on the amplified signal output by the signal adjustment module (31) and output a processed signal; The data analysis module (33) is electrically connected to the filtering module (32). The data analysis module (33) is configured to perform data analysis and algorithm optimization on the processed signal output by the filtering module, and output biological indicators.

10. A wearable device, characterized in that, The wearable device includes: the biological indicator measurement module (100) according to any one of claims 1 to 9.

11. The wearable device according to claim 10, wherein, The wearable device further includes a display module (400). The biological indicator measurement module (100) further includes a signal processing component (3). The display module (400) is electrically connected to the signal processing component (3), and the display module (400) is configured to display the biological indicators determined by the signal processing component (3).

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