A human physiological parameter monitoring component and wearable device

Abstract

The present application provides a human physiological parameter monitoring component and a wearable device, the component includes a mainboard and a light source module and a light detection module arranged on the mainboard, wherein the light source module includes a first light emitting component for emitting a first light ray and a second light emitting component for emitting a second light ray, which are arranged at intervals; the light detection module includes a first light detector for receiving a reflected light ray of the first light ray and a second light detector for receiving a reflected light ray of the second light ray, and the first light detector and the second light detector are respectively located on both sides of the light source module; the distance between the second light emitting component and the second light detector is greater than the distance between the first light emitting component and the second light detector, and the distance between the second light emitting component and the second light detector is greater than the distance between the first light emitting component and the first light detector. Through the above method, the accuracy of human physiological parameter monitoring can be improved, and it is conducive to the miniaturization of the product.

Description

Technical Field

[0001] The present application relates to the field of biological monitoring technology, and in particular to a human physiological parameter monitoring component and a wearable device. Background Art

[0002] Human physiological monitoring (such as heart rate monitoring, pulse monitoring) has become a standard function of smart bracelets and smart watches, which is used to monitor or detect vital signs such as user heart rate, blood oxygen, etc. At present, the commonly used method of physiological monitoring in smart bracelets or watches is photoelectric transmission measurement. When in use, the area where the bracelet contacts the skin will emit light of a specific wavelength to illuminate the skin, and the sensor of the bracelet receives and measures the reflected / transmitted light.

[0003] The inventor of the present application has found in long-term research and development that the existing physiological monitoring structure using the electrical transmission measurement method usually uses one photodiode corresponding to one or more light-emitting elements, and the accuracy is not high. Because the sensing area of ​​the photodiode that effectively receives light is limited, and the distances of various light sources of different wavelengths relative to the same photodiode are also specific requirements, in order to improve the accuracy, the light intensity needs to be increased, thereby increasing power consumption. Summary of the invention

[0004] The present application provides a human physiological parameter monitoring component and a wearable device to solve the problem in the prior art that one light detector corresponds to one or more light-emitting elements and the accuracy of the light detector is not high.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a human physiological parameter monitoring component, including a main board and a light source module and a light detection module arranged on the main board, wherein the light source module includes a first light-emitting component for emitting a first light and a second light-emitting component for emitting a second light, which are arranged at intervals; the light detection module includes a first light detector for receiving a reflected light of the first light and a second light detector for receiving a reflected light of the second light, and the first light detector and the second light detector are respectively located on both sides of the light source module; the distance between the second light-emitting component and the second light detector is greater than the distance between the first light-emitting component and the second light detector, and the distance between the second light-emitting component and the second light detector is greater than the distance between the first light-emitting component and the first light detector.

[0006] In order to solve the above-mentioned technical problems, another technical solution adopted in the present application is: to provide a wearable device, the wearable device includes a first shell, a second shell and the above-mentioned human physiological parameter monitoring component; the first shell and the second shell are aligned and assembled to form a accommodating space, and the human physiological parameter monitoring component is arranged in the accommodating space; the second shell includes two ends, a long side located between the two ends and a window revealing the light source module and the light detection module.

[0007] The beneficial effects of the present application are as follows: Different from the prior art, the present application provides a human physiological parameter monitoring component and a wearable device, the component comprising a mainboard and a light source module and a light detection module arranged on the mainboard, wherein the light source module comprises a first light emitting component for emitting a first light and a second light emitting component for emitting a second light, which are arranged at intervals; the light detection module comprises a first light detector for receiving a reflected light of the first light and a second light detector for receiving a reflected light of the second light, and the first light detector and the second light detector are respectively located on both sides of the light source module; the distance between the second light emitting component and the second light detector is greater than the distance between the first light emitting component and the second light detector, and the distance between the second light emitting component and the second light detector is greater than the distance between the first light emitting component and the first light detector. By using two groups of light emitting elements of the first light emitting component and the second light emitting component to increase the light emission, the first light detector and the second light detector are arranged on both sides of the two groups of light emitting elements, so that the light receiving area of ​​the two light detectors can be increased, thereby increasing the amount of human physiological signals collected, and reducing power consumption, which is conducive to the algorithm analysis of human physiological parameters, and solves the problem that one light detector corresponds to one or more light emitting elements in the prior art, and the accuracy of the light detector is not high. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0009] Figure 1 It is a structural schematic diagram of an embodiment of a human physiological parameter monitoring component of the present application;

[0010] Figure 2 yes Figure 1 A partial structural schematic diagram of an embodiment of a human physiological parameter monitoring component is shown;

[0011] Figure 3 yes Figure 1 A partial structural schematic diagram of another embodiment of a human physiological parameter monitoring component is shown;

[0012] Figure 4 It is a structural schematic diagram of an embodiment of a wearable device of the present application;

[0013] Figure 5 yes Figure 4 A schematic diagram of the structure of some wearable devices shown;

[0014] Figure 6 yes Figure 5A schematic diagram of the cross-sectional structure of some wearable devices shown;

[0015] Figure 7 yes Figure 5 A schematic structural diagram of the second shell is shown. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0017] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0018] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0019] See also Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of an embodiment of a human physiological parameter monitoring component of the present application. Figure 2 yes Figure 1 The partial structural diagram of the human physiological parameter monitoring component is shown. The human physiological parameter monitoring component 100 disclosed in this embodiment includes a main board 11 and a light source module 12 and a light detection module 13 disposed on the main board 11.

[0020] Specifically, the light source module 12 includes a first light emitting component 121 and a second light emitting component 122 arranged at intervals, the first light emitting component 121 is used to emit a first light, and the second light emitting component 122 is used to emit a second light. The light detection module 13 includes a first light detector 131 and a second light detector 132, the first light detector 131 is used to receive the reflected light of the first light, and the second light detector 132 is used to receive the reflected light of the second light, and the first light detector 131 and the second light detector 132 are respectively located on both sides of the light source module 12. The first light detector 131 and the second light detector 132 are photodiodes.

[0021] The light source module 12 and the light detection module 13 are installed on the side of the main board 11 close to the skin. When the user uses the human physiological parameter monitoring component 100, the light source module 12 will emit light of a specific wavelength to irradiate the skin, and the light detection module 13 will receive and measure the light irradiated to the skin and reflected by the skin, thereby determining the user's human physiological parameters.

[0022] The reflection of light by blood will provide feedback on the blood oxygen and heart rate status. Blood absorbs light of a specific wavelength. Every time the heart pumps blood, a large amount of light of that wavelength will be absorbed, causing the light reflected by the skin to change. Therefore, the reflected light can be obtained through the light detector to determine the human blood parameters, such as the user's pulse, pressure level, blood oxygen value, heart rate value, etc. in the skin.

[0023] The skin forms a reflected light for the received light, the light detection module 13 receives the reflected light, and a calculation logic unit (not shown) disposed on the main board 11 performs relevant algorithm analysis. In this embodiment, the first light detector 131 and the second light detector 132 are used to jointly receive the reflected light of the first light and the second light, and form the first reflected light and the second reflected light, the first reflected light is obtained by the first light after being reflected by the skin, and the second reflected light is obtained by the second light after being reflected by the skin.

[0024] The distance between the second light emitting component 122 and the second light detector 132 is greater than the distance between the first light emitting component 121 and the second light detector 132 , and the distance between the second light emitting component 122 and the second light detector 132 is greater than the distance between the first light emitting component 121 and the first light detector 131 .

[0025] The distance between the light-emitting assembly and the light detector is the distance between the geometric centers of the light-emitting assembly and the light detector. When the light-emitting assembly has only one light-emitting element, the distance between the light-emitting assembly and the light detector is the distance between the light-emitting center of the light-emitting element and the geometric center of the light detector; when the light-emitting assembly includes multiple light-emitting elements located in a straight line, the distance between the light-emitting assembly and the light detector is the distance between the line connecting the light-emitting elements and the geometric center of the light detector.

[0026] In this embodiment, the first light detector 131 is disposed at a side away from the first light emitting component 121 and spaced apart from the second light emitting component 122 , and the second light detector 132 is disposed at a side away from the second light emitting component 122 and spaced apart from the first light emitting component 121 .

[0027] In a specific embodiment, the first light emitting component 121 includes at least one green light source, and the first light is green light; the second light emitting component 122 includes at least one red light source and at least one infrared light source, and the second light is a combination of red light and infrared light.

[0028] In a specific embodiment, the first light-emitting component 121 includes a first light-emitting element 1211 and a second light-emitting element 1212. The first light-emitting element 1211 and the second light-emitting element 1212 are both green light sources, that is, the first light-emitting element 1211 is a first green light source, the second light-emitting element 1212 is a second green light source, the first light is a green light emitted by two green light sources, and accordingly, the first reflected light includes a green reflected light. Human blood is red and can effectively absorb the green light emitted by the green light source, so that the fluctuation of the light reflected from the skin can be more obvious in the green spectrum, so the first light-emitting element 1211 and the second light-emitting element 1212 are used to emit an optical signal for detecting blood oxygen.

[0029] In a specific embodiment, the second light emitting assembly 122 includes at least two red light sources and at least two infrared light sources arranged in a straight line, the number of red light sources is equal to the number of infrared light sources, and the red light sources and the infrared light sources are arranged alternately. In this embodiment, the second light emitting assembly 122 includes a third light emitting element 1221, a fourth light emitting element 1222, a fifth light emitting element 1223, and a sixth light emitting element 1224 arranged in a straight line.

[0030] The third light emitting element 1221 and the fifth light emitting element 1223 are both red light sources, that is, the third light emitting element 1221 is the first red light source, and the fifth light emitting element 1223 is the second red light source. The fourth light emitting element 1222 and the sixth light emitting element 1224 are both infrared light sources, that is, the fourth light emitting element 1222 is the first infrared light source, and the sixth light emitting element 1224 is the second infrared light source. Accordingly, the second light is the red light emitted by the two red light sources and the infrared light emitted by the two infrared light sources, and the second reflected light includes the red reflected light and the infrared reflected light.

[0031] The degree of light absorption and light scattering of blood is related to blood oxygen saturation (SpO2) and hemoglobin content. According to the spectral characteristics of oxygenated hemoglobin and reduced hemoglobin in the red light and infrared light regions, the absorption of red light and infrared light by oxygenated hemoglobin and reduced hemoglobin is very different. The contents of oxygenated hemoglobin and reduced hemoglobin in human blood are different, and the absorption spectra are also different, so that the light source module 12 can emit light signals of two wavelengths to obtain the blood oxygen saturation in the blood. Therefore, in this embodiment, a red light source and an infrared light source can be used to detect the blood oxygen saturation of the human body, wherein the first infrared light source and the second infrared light source can also be used to detect whether the user is wearing the human physiological parameter monitoring component 100.

[0032] The first light-emitting component 121 and the second light-emitting component 122 both include a base (not shown) and a light-emitting diode (not shown) and a light source lampshade (not shown) disposed on the base. The base is disposed on the main board 11, and the light source lampshade covers the light-emitting diode. The light-emitting diode is used to emit green light, red light, or infrared light.

[0033] In this embodiment, the light emitting diode may be a narrow-angle light emitting diode, which can allow more light to be incident into human skin, thereby allowing the first light detector 131 and the second light detector 132 to receive more reflected light, which is beneficial to reducing the power consumption of the light emitting diode.

[0034] In a specific embodiment, the first light detector 131 and the second light detector 132 are both photoelectric sensors (not shown), and the shape of each photoelectric sensor facing the user's skin is a rectangle with long sides and short sides. The long side of one side of the first light detector 131 faces the second light-emitting component 122, and the long side of one side of the second light detector 132 faces the first light-emitting component 121.

[0035] The first light detector 131 is mainly used to receive the green light reflected from the human skin, and is also used to receive the red light reflected from the human skin and the infrared light reflected from the human skin. The second light detector 132 mainly receives the red light reflected from the human skin and the infrared light reflected from the human skin, and is also used to receive the green light reflected from the human skin. The accuracy and precision of the detection of human physiological parameters can be improved by multiplexing the first light detector 131 and the second light detector 132. At the same time, since the first light detector 131 and the second light detector 132 are multiplexed, the first light emitting component 121 and the second light emitting component 122 with lower power can be appropriately selected, thereby reducing the cost of this embodiment.

[0036] Based on the positional relationship between the first light detector 131, the second light detector 132, the first light emitting component 121 and the second light emitting component 122, in the case of photoelectric sensors of the same area, the first light detector 131 and the second light detector 132 can receive as much first reflected light as possible and the second reflected light as possible, which is beneficial to reducing the power consumption of the light emitting diode. At the same time, it can also reduce the area requirements for the first light detector 131 and the second light detector 132, thereby reducing the economic cost of the first light detector 131 and the second light detector 132.

[0037] When the first light-emitting element 1211, the second light-emitting element 1212, the third light-emitting element 1221, the fourth light-emitting element 1222, the fifth light-emitting element 1223, and the sixth light-emitting element 1224 are installed on the main board 11, the third light-emitting element 1221 as the first red light source and the fourth light-emitting element 1222 as the first infrared light source are arranged adjacent to each other, and the fifth light-emitting element 1223 as the second red light source and the sixth light-emitting element 1224 as the second infrared light source are arranged adjacent to each other.

[0038] The fourth light emitting element 1222 is located between the third light emitting element 1221 and the fifth light emitting element 1223, and the fifth light emitting element 1223 is located between the fourth light emitting element 1222 and the sixth light emitting element 1224, that is, the red light source and the infrared light source are staggered on the main board 11. In fact, the second light emitting component 122 may include more than two red light sources and two infrared light sources, the number of red light sources is equal to the number of infrared light sources, and the red light sources and the infrared light sources are staggered. The staggered arrangement of the red light source and the infrared light source can make the red light or the infrared light uniformly emitted to the human skin, and be uniformly received by the first light detector 131 and the second light detector 132, thereby improving the signal quality.

[0039] The first light emitting element 1211 is disposed adjacent to one side of the third light emitting element 1221 and the fourth light emitting element 1222 , and the second light emitting element 1212 is disposed adjacent to one side of the fifth light emitting element 1223 and the sixth light emitting element 1224 .

[0040] In a specific embodiment, if Figure 2 As shown, the first light-emitting component 121, the second light-emitting component 122, the first light detector 131 and the second light detector 132 respectively have central axes parallel to each other, and the distance between the first light-emitting component 121, the second light-emitting component 122, the first light detector 131 and the second light detector 132 is the distance between the corresponding central axes of the elements.

[0041] In a specific embodiment, the central axis of the first light detector 131 and the second light detector 132 is a line passing through the geometric center; the central axis of the first light-emitting component 121 is a line passing through the light-emitting center of the first light-emitting component 121 or a line connecting the light-emitting centers of multiple green light sources; the central axis of the second light-emitting component 122 is a line connecting the light-emitting centers of the red light source and the infrared light source.

[0042] like Figure 2 As shown, the first light detector 131 has a first central axis L1, which is a line passing through the geometric center of the first light detector 131. Specifically, the first central axis L1 is a line connecting the midpoint of the short side of the first light detector 131 and the center of the first light detector 131. The second light detector 132 has a second central axis L2, which is a line passing through the geometric center of the second light detector 132. Specifically, the second central axis L2 is a line connecting the midpoint of the short side of the second light detector 132 and the center of the second light detector 132.

[0043] The first light-emitting assembly 121 has a third central axis L3, which is a line connecting the light-emitting centers of the first light-emitting element 1211 and the second light-emitting element 1212. The second light-emitting assembly 122 has a fourth central axis L4, which is a line connecting the light-emitting centers of the third light-emitting element 1221, the fourth light-emitting element 1222, the fifth light-emitting element 1223, and the sixth light-emitting element 1224. The first central axis L1, the second central axis L2, the third central axis L3, and the fourth central axis L4 are all parallel to each other, that is, any two central axes are parallel to each other.

[0044] In such Figure 2 In the embodiment shown, since the first light emitting assembly 121 has two green light sources, the third central axis L3 is the line connecting the light emission centers of the two green light sources. Figure 3 As shown, the first light-emitting component 121 is a line passing through the light-emitting center of the light-emitting element 1211, and the line is parallel to the central axis of the second light-emitting component 122. In the case of a photoelectric sensor of the same area, the first light detector 131 and the second light detector 132 can receive as much first reflected light as possible, which is beneficial to reducing the power consumption of the light-emitting diode, and can also reduce the area requirements of the first light detector 131 and the second light detector 132, thereby reducing the economic cost of the first light detector 131 and the second light detector 132.

[0045] In a specific embodiment, there is a first distance between the first central axis L1 of the first light detector 131 and the third central axis L3 of the first light-emitting component 121, and the first distance is 2.5 mm to 7.0 mm, for example, 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm, 4.5 mm, 5.0 mm, 5.5 mm, 6.0 mm, 6.5 mm, and 7.0 mm.

[0046] There is a second distance between the second central axis L2 of the second light detector 132 and the third central axis L3 of the first light emitting component 121, and the second distance is 2.5 mm to 7.0 mm, for example, 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm, 4.5 mm, 5.0 mm, 5.5 mm, 6.0 mm, 6.5 mm, 7.0 mm.

[0047] There is a third distance between the second central axis L2 of the second light detector 132 and the fourth central axis L4 of the second light emitting component 122, and the third distance is 3.5 mm to 7.5 mm, for example, 3.5 mm, 4.0 mm, 4.5 mm, 5.0 mm, 5.5 mm, 6.0 mm, 6.5 mm, 7.0 mm.

[0048] Since the longer the transmission path of red light in the blood, the better the blood oxygen signal that can be obtained (higher perfusion index), in this embodiment, the distance between the third light-emitting element 1221, the fourth light-emitting element 1222, the fifth light-emitting element 1223 and the sixth light-emitting element 1224 as the second light-emitting component 122 and the second light detector 132 is greater than the distance between the first light-emitting element 1211, the second light-emitting element 1212 as the first light-emitting component 121 and the second light detector 132, that is, the third distance is greater than the second distance.

[0049] In addition, the first distance is substantially equal to the second distance, and the light emitted by the first light emitting element 1211 and the second light emitting element 1212 of the first light emitting assembly 121 can be simultaneously received by the first light detector 131 and the second light detector 132 , that is, the third distance is also greater than the first distance.

[0050] In this embodiment, the first distance is substantially equal to the second distance, so the green light emitted by the first light emitting component 121 can be received by the first light detector 131 and the second light detector 132 at the same time, and the green reflected light received by the two light detectors has a better signal quality. When calculating the heart rate, the green light signal received by the first light detector 131 or the second light detector 132 can be used alone for calculation, or the green light signal received by the first light detector 131 or the second light detector 132 can be used for heart rate calculation at the same time, which can better remove the influence of ambient light and user movement.

[0051] For example, when the user fails to wear the wearable device properly, only one of the light detectors can receive a green light signal of better quality, and the green light signal of one of the light detectors is used to calculate the heart rate. In other embodiments, the red light signal and the infrared light signal received by the first light detector 131 and the second light detector 132 can also be used to calculate the heart rate.

[0052] In order to obtain more blood oxygen information, it is usually necessary to obtain more abundant information about human blood vessels, so red light and infrared light are used to obtain longer wavelengths and penetrate more subcutaneous tissue to obtain blood information. Since the third distance is greater than the second distance, the red light and infrared light emitted by the second light emitting component 122 can penetrate deeper subcutaneous tissue to obtain more blood information, so that the second light detector 132 can receive better blood oxygen information.

[0053] In this embodiment, the red light and infrared light signals received by the second light detector 132 are used alone as blood oxygen signals for blood oxygen calculation, and the red light signal and infrared light signal received by the first light detector 131 can be used as auxiliary blood oxygen signals for blood oxygen calculation.

[0054] In a specific embodiment, the distance between the second light emitting component 122 and the second light detector 132 is 6.7 mm; the distance between the first light emitting component 121 and the second light detector 132 is 5.1 mm; and the distance between the first light emitting component 121 and the first light detector 131 is 5.5 mm. At the same time, there is a fourth distance between the third central axis L3 and the fourth central axis L4, and the fourth distance is 1.6 mm. Among the third light emitting element 1221, the fourth light emitting element 1222, the fifth light emitting element 1223 and the sixth light emitting element 1224, the distance between the physical centers of two adjacent light emitting elements can be 1.1 mm, which can make the devices not affect each other to meet the packaging requirements and minimize the space.

[0055] The first light emitting element 1211 has a fifth central axis L5, the second light emitting element 1212 has a sixth central axis L6, and the third light emitting element 1221 has a seventh central axis L7. The fifth central axis L5, the sixth central axis L6, and the seventh central axis L7 are all parallel straight lines and perpendicular to the fourth central axis L4. The distance between the fifth central axis L5 and the seventh central axis L7 is 0.6 mm, and the distance between the fifth central axis L5 and the sixth central axis L6 is 2.26 mm.

[0056] The human physiological parameter monitoring component 100 disclosed in this embodiment is densely arranged with two red light sources, two infrared light sources and two relatively large-area light detectors, so that the light emission of the human physiological parameter monitoring component 100 is greater, the receiving area of ​​the two light detectors is larger, and more blood oxygen signals are collected, which is conducive to algorithm analysis.

[0057] In a specific embodiment, the light source module 12, the first light detector 131 and the second detector 132 are respectively installed on the mainboard 11 through separate pads for adjusting the height difference between them, and the top surfaces of the light source module 12, the first light detector 131 and the second detector 132 are flush.

[0058] like Figure 1 As shown, a first pad 141, a second pad 142 and a third pad 143 are provided on the main board 11, the first light detector 131 is installed on the main board 11 through the first pad 141, the light source module 12 is installed on the main board 11 through the second pad 142, and the second light detector 132 is installed on the main board 11 through the third pad 143.

[0059] The first pad 141, the second pad 142 and the third pad 143 are used to adjust the height difference between the top ends of the first light detector 131, the light source module 12 and the second light detector 132, so that the top surfaces of the first light detector 131, the light source module 12 and the second light detector 132 are in a flush state, thereby increasing the sensing effect of the first light detector 131 and the second light detector 132, and being closer to the user's skin, which can improve the accuracy of the human physiological parameter monitoring component 100.

[0060] For example, the first light-emitting component 121 and the second light-emitting component 122 have a first top surface, the first light detector 131 and the second light detector 132 have a second top surface, and when the first light-emitting element 1211, the second light-emitting element 1212, the third light-emitting element 1221, the fourth light-emitting element 1222, the fifth light-emitting element 1223, and the sixth light-emitting element 1224 are installed on the mainboard 11 through the base, the first top surface is 0.4 mm higher than the second top surface. At this time, the thickness of the first pad 141 and the third pad 143 can be set to 1.2 mm, and the thickness of the second pad 142 can be set to 0.8 mm.

[0061] In this embodiment, the first light-emitting component 121, the second light-emitting component 122 as light sources and the first light detector 131, the second light detector 132 are arranged compactly, and better quality physiological signals can be obtained in a smaller layout space, which is conducive to the miniaturization of human physiological parameter monitoring components.

[0062] Please join us Figure 3 , Figure 3 yes Figure 1 A partial structural schematic diagram of another embodiment of a human physiological parameter monitoring component is shown.

[0063] In a specific embodiment, the human physiological parameter monitoring component 100 may include a green light source, a red light source, an infrared light source, and two light detectors.

[0064] Specifically, the first light-emitting component 121 includes a first light-emitting element 1211, and the first light-emitting element 1211 is a green light source, and the green light source may include a light-emitting diode, such as a narrow-angle light-emitting diode. The second light-emitting component 122 includes a third light-emitting element 1221 and a fourth light-emitting element 1222, wherein the third light-emitting element 1221 is a red light source, and the fourth light-emitting element 1222 is an infrared light source, and both the red light source and the infrared light source may include a light-emitting diode, such as a narrow-angle light-emitting diode. The light detection module 13 includes a first light detector 131 and a second light detector 132, and both the first light detector 131 and the second light detector 132 include a photoelectric sensor.

[0065] The first light-emitting component 121 and the second light-emitting component 122 are arranged at intervals, the first light detector 131 is arranged at a side away from the first light-emitting component 121 and the second light detector 132 is arranged at a side away from the second light-emitting component 122 and the first light-emitting component 121, that is, the red light source and the infrared light source are arranged on one side of the green light source, the second light detector 132 is arranged on the other side of the green light source, and the first light detector 131 is arranged on a side of the red light source and the infrared light source away from the green light source.

[0066] The distances between the first light emitting element 1211 , the third light emitting element 1221 , and the fourth light emitting element 1222 and the first light detector 131 and the second light detector 132 are similar to those in the above embodiment and are not described in detail herein.

[0067] exist Figure 3 In the embodiment shown, Figure 2 The main difference between the embodiments shown is the number of light sources. Figure 3 There are 1 green light source, 1 red light source, and 1 infrared light source. Figure 2 There are two green light sources, two red light sources, and two infrared light sources respectively.

[0068] In other embodiments of the present application, with one green light source, one red light source, and one infrared light source as a group, multiple groups (greater than or equal to 2 groups) of light source structures can be formed to obtain physiological signals with higher intensity.

[0069] The present application provides a human physiological parameter monitoring component 100, which includes a main board 11 and a light source module 12 and a light detection module 13 arranged on the main board 11, wherein the light source module 12 includes a first light-emitting component 121 for emitting a first light and a second light-emitting component 122 for emitting a second light, which are arranged at intervals; the light detection module 13 includes a first light detector 131 for receiving a reflected light of the first light and a second light detector 132 for receiving a reflected light of the second light, and the first light detector 131 and the second light detector 132 are respectively located on both sides of the light source module 12; the distance between the second light-emitting component 122 and the second light detector 132 is greater than the distance between the first light-emitting component 121 and the second light detector 132, and the distance between the second light-emitting component 122 and the second light detector 132 is greater than the distance between the first light-emitting component 121 and the first light detector 131. By using the first light-emitting component 121 and the second light-emitting component 122, two groups of light-emitting elements emit green light signals for detecting heart rate and red light and infrared light signals for detecting blood oxygen, respectively, and setting the first light detector 131 and the second light detector 132 on both sides of the two groups of light-emitting elements, the light receiving area of ​​the two light detectors can be increased, and the accuracy of heart rate detection can be improved; and the distance between the second light-emitting component 122 and the second light detector 132 is large, and the red light and infrared light signals emitted by it can penetrate the user's skin, obtain more subcutaneous blood information, and then be received by the second light detector 132, thereby increasing the collection amount of blood oxygen signals, which is beneficial to the algorithm analysis of human physiological parameters. The present invention can enhance the signal strength of heart rate and blood oxygen signals while reasonably designing the distance interval, and can also miniaturize the physiological detection components.

[0070] Based on the above implementation, the present application further provides a wearable device. Figures 4 to 6 , Figure 4 is a structural schematic diagram of an embodiment of a wearable device of the present application, Figure 5 yes Figure 4 The structural diagram of some wearable devices shown in the figure is as follows: Figure 6 yes Figure 5 The cross-sectional structure diagram of the wearable device shown. The wearable device 200 disclosed in this embodiment includes a first shell 21, a second shell 22 and a human physiological parameter monitoring component 23. The first shell 21 and the second shell 22 are aligned and assembled to form a main body. The human physiological parameter monitoring component 23 is similar to the human physiological parameter monitoring component 100 in the above-mentioned embodiment. The parts of this embodiment that are similar to the above-mentioned embodiment are not repeated here.

[0071] The wearable device 200 disclosed in this embodiment is a bracelet, which can be directly worn on a human wrist. Accordingly, the wearable device 200 also includes a belt portion 24 connected to both sides of the main body. The belt portion 24 is used to fix the wearable device 200 on the human wrist, and the belt portion 24 is detachably connected to the main body.

[0072] Obviously, the human physiological parameter detection component 23 can be integrated into any portable device, such as glasses, helmets, bracelets, necklaces, watches, brooches, shoes, etc. The main body of the wearable device 200 as a bracelet is detachably connected to the belt part 24, and the main body with the human physiological parameter detection 23 can be installed on other portable devices to realize physiological detection.

[0073] The wearable device 200 is used to be worn on the user's skin. The first shell 21 and the second shell 22 are aligned and snapped together to form a accommodating space. The human physiological parameter monitoring component 23 is arranged in the accommodating space. The second shell 22 is arranged on the side close to the skin and has a curved arc that adapts to the human wrist.

[0074] The second shell 22 includes two ends (not shown), a long side (not shown) located between the two ends and a window 221. The window 221 matches the shape and size of the light source module 231 and the light detection module 232, revealing the light emitting and light receiving surfaces of the light source module 231 and the light detection module 232, and is used to penetrate the first light, the second light, the first reflected light and the second reflected light.

[0075] In this embodiment, a display screen (not shown) for displaying information is mounted on the first shell 21 , and the second shell 22 is generally in the shape of a long strip, with both ends detachably connected to the belt portion 24 of the wearable device 200 .

[0076] The materials of the first shell 21 and the second shell 22 can be plastic, metal, alloy, etc., which are not limited here. The edges of the first shell 21 and the second shell 22 can be respectively provided with mutually matching grooves and protrusions, or mutually matching buckles and buckles, so that the first shell 21 and the second shell 22 can be aligned and assembled.

[0077] Please also read Figure 7 , Figure 7 yes Figure 5 A schematic structural diagram of the second shell is shown.

[0078] In a specific embodiment, the number of the windows 221 is three, and the three windows 221 correspond one-to-one to the light source module 231 and the two light detectors of the human physiological parameter monitoring component 23 .

[0079] Specifically, the window 221 includes a first window 2211, a second window 2212 and a third window 2213, the second window 2212 is arranged between the first window 2211 and the third window 2213, and the first window 2211, the second window 2212 and the third window 2213 are shaped like a rectangle with a long side and a short side, the long side of one side of the second window 2212 faces the long side of the first window 2211, and the long side of the other side of the second window 2212 faces the long side of the third window 2213.

[0080] The short sides of the first window 2211 , the second window 2212 and the third window 2213 are arranged along the long sides of the second shell 22 , and the first window 2211 , the second window 2212 and the third window 2213 are arranged in parallel on the second shell 22 .

[0081] The first window 2211 is arranged corresponding to the first light detector 2321 , the second window 2212 is arranged corresponding to the light source module 231 , that is, the second window 2212 is arranged corresponding to the first light-emitting component (not shown) and the second light-emitting component (not shown), and the third window 2213 is arranged corresponding to the second light detector 2322 .

[0082] When viewing the inner side of the wearable device 200 from the second housing 22, the first light detector 2321 can be observed in the first window 2211, the green light source, the red light source, and the infrared light source can be observed in the second window 2212, and the second light detector 2322 can be observed in the third window 2213. The first window 2211 matches the shape and size of the first light detector 2321, the second window 2212 matches the shape and size of the light source module 231 formed by the green light source, the red light source, and the infrared light source, and the third window 2213 matches the shape and size of the second light detector 2322.

[0083] In a specific embodiment, the second window 2212 has a fifth distance between two adjacent long sides of the first window 2211, the second window 2212 has a sixth distance between two adjacent long sides of the third window 2213, and the fifth distance is less than the sixth distance. The green light source is located on a side of the second window 2212 close to the third window 2213, and the red light source and the infrared light source are located on a side of the second window 2212 close to the first window 2211.

[0084] In a specific embodiment, the long sides of the first window 2211, the second window 2212 and the third window 2213 are all 5.1 mm, the short sides of the first window 2211 and the third window 2213 are 2.8 mm, the short side of the second window 2212 is 3.3 mm, the fifth distance is 1.65 mm, and the sixth distance is 2.85 mm.

[0085] In fact, the smaller the fifth distance is, the better, so that the first light detector 2321 in the first window 2211 can receive more green light signals, but considering the need to set a light shielding part between the first window 2211 and the second window 2212 to prevent internal light leakage, there is a requirement to set a light shielding part during mold injection. The fifth distance is set to 1.65 mm, which is small enough to make the distance between the first light-emitting component and the first light detector 2321 small enough, so that the first light detector 2321 can obtain more green light information.

[0086] The short sides of the first window 2211, the second window 2212 and the third window 2213 are arranged along the long side of the second shell 22. The first window 2211, the second window 2212 and the third window 2213 are arranged parallel to the second shell 22, forming a window 221 area arranged along the long side of the second shell 22. Therefore, the short sides of the first light detector 2321 of the human physiological parameter monitoring component 23 and the second light detector 2322 of the light source module 231 are arranged in sequence corresponding to the long side of the wristband, so that the width of the wristband is not limited by the number of light sources and light detectors, so that the width of the wristband body is not too wide, but similar to a long strip, which improves the strength of the physiological signal and makes the structure more compact, which is conducive to the miniaturization of the product.

[0087] The material of the window 221 is a highly transparent material, for example, at least one of polycarbonate (PC), polymethyl methacrylate (PMMA), and epoxy resin. The material of the second shell 22 is a light shielding material, and the window 221 and the second shell 22 are injection molded by a two-color injection molding process.

[0088] The two-color injection molding process is based on the IMD (in-mold decoration) process, which can be understood as the common name of IMD. It is a combination of two colors, inlaid on an object, usually with black and white as the base color. The main features are high gloss, smooth and delicate feel, and not easy to scratch.

[0089] The window 221 is the first color, the second housing 22 is the second color (light shielding area), the first window 2211, the second window 2212 and the third window 2213 are independent of each other and have independent glue inlets. For example, a 0.4 mm glue sealing position can be reserved, and if the glue sealing position is insufficient, a through glue sealing is used.

[0090] Insertion is a mold term, which refers to a mold design method in which the front and rear mold steel materials with draft angles are close to each other after mold closing to effectively prevent the molten plastic from flowing in and complete the product injection molding. Sealing refers to the mold structure that restricts the flow of molten plastic in the cavity after the mold is closed, which can be understood as sufficiently precise front and rear molds.

[0091] In a specific embodiment, the human physiological parameter monitoring component 23 needs to ensure that the received light is the light reflected by the skin, and the other light source signals are interference signals. Therefore, an anti-interference structure design is required inside the wearable device 200 to prevent the reception of light sources other than those reflected by the skin.

[0092] If there is no light shielding portion between the first window 2211, the second window 2212 and the third window 2213, the light emitted by the light source in the second window 2212 will directly reach the second window 221 and the third window 221, causing light leakage. Therefore, the wearable device 200 also includes an elastic light-isolating plate 24, which is used to further isolate the second window 2212 from the first window 2211 and the third window 2213 to prevent light leakage.

[0093] The elastic light-isolating plate 24 is disposed between the main board 233 and the second housing 22 . The elastic light-isolating plate 24 is provided with through holes for exposing the light source module 231 and the light detection module 232 .

[0094] In a specific embodiment, the elastic light-isolating plate 24 may include ethylene-vinyl acetate copolymer foam, and the elastic light-isolating plate has the characteristics of being elastic and opaque. After the first shell 21 and the second shell 22 are assembled in place, the elastic light-isolating plate 24 can be compressed by 0.3 to 0.5 mm in the accommodating space to block the interference of light inside the human physiological parameter monitoring component 23 and before the light source module 231 reaches the skin.

[0095] In a specific embodiment, the number of at least one through hole is three, including a first through hole 2411, a second through hole 2412 and a third through hole 2413, the first through hole 2411 is arranged corresponding to the first light detector 2321, the second through hole 2412 is arranged corresponding to the light source module 231, and the third through hole 2413 is arranged corresponding to the second light detector 2322.

[0096] The present application provides a wearable device 200, which includes a first shell 21, a second shell 22 and a human physiological parameter monitoring component 23; the first shell 21 and the second shell 22 are aligned and snap-fitted to form a accommodating space, and the human physiological parameter monitoring component 23 is arranged in the accommodating space; the second shell 22 includes two ends, a long side located between the two ends and a window 221 that exposes a light source module 231 and a light detection module 232, which can improve the accuracy of the first light detector 2321 and the second light detector 2322.

[0097] The above are only implementation methods of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A human physiological parameter monitoring component, characterized in that: The assembly includes a main board and a light source module and a light detection module arranged on the main board, wherein: The light source module comprises a first light emitting component for emitting a first light and a second light emitting component for emitting a second light, which are arranged at intervals; The first light emitting component includes at least one green light source, and the first light is green light; the second light emitting component includes at least two red light sources and at least two infrared light sources arranged in a straight line, the number of the red light sources is equal to the number of the infrared light sources, and the red light sources and the infrared light sources are arranged in an alternating manner; The first light-emitting component and the second light-emitting component each include a base, a light-emitting diode disposed on the base, and a light source lampshade, wherein the base is disposed on the main board, the light source lampshade covers the light-emitting diode, and the light-emitting diode is a narrow-angle light-emitting diode; The light detection module comprises a first light detector for receiving the reflected light of the first light and a second light detector for receiving the reflected light of the second light, wherein the first light detector and the second light detector are respectively located at two sides of the light source module; The first light emitting component, the second light emitting component, the first light detector and the second light detector respectively have central axes that are parallel to each other, and the distance between the first light emitting component, the second light emitting component, the first light detector and the second light detector is the distance between the central axes; The distance between the second light emitting component and the second light detector is greater than the distance between the first light emitting component and the second light detector, and the distance between the second light emitting component and the second light detector is greater than the distance between the first light emitting component and the first light detector.

2. The human physiological parameter monitoring component according to claim 1, characterized in that: The distance between the second light emitting component and the second light detector is 3.5 mm to 7.5 mm; the distance between the first light emitting component and the second light detector is 2.5 mm to 7.0 mm; the distance between the first light emitting component and the first light detector is 2.5 mm to 7.0 mm.

3. The human physiological parameter monitoring component according to claim 1, characterized in that: The distance between the second light emitting component and the second light detector is 6.7 mm; the distance between the first light emitting component and the second light detector is 5.1 mm; and the distance between the first light emitting component and the first light detector is 5.5 mm.

4. The human physiological parameter monitoring component according to claim 1, characterized in that: The central axis of the first light detector and the second light detector is a line passing through the geometric center; The central axis of the first light-emitting component is a line passing through the light-emitting center of the first light-emitting component or a line connecting the light-emitting centers of a plurality of green light sources; The central axis of the second light-emitting component is a line connecting the light-emitting centers of the red light source and the infrared light source.

5. The human physiological parameter monitoring component according to claim 1, characterized in that: The first light detector and the second light detector are both rectangular with long sides and short sides. The long side of one side of the first light detector faces the second light-emitting component, and the long side of one side of the second light detector faces the first light-emitting component.

6. The human physiological parameter monitoring component according to claim 1, characterized in that: The light source module, the first light detector and the second light detector are respectively mounted on the mainboard through separate pads for adjusting the height difference between them, and the top surfaces of the light source module, the first light detector and the second light detector are flush.

7. A wearable device, characterized in that: The wearable device comprises a first shell, a second shell and a human physiological parameter monitoring component as described in any one of claims 1 to 6; The first shell and the second shell are aligned and snapped together to form a accommodating space, and the human physiological parameter monitoring component is arranged in the accommodating space; the second shell includes two ends, a long side located between the two ends, and a window that reveals the light source module and the light detection module.

8. The wearable device according to claim 7, characterized in that: The windows include a first window matching the first light detector, a second window matching the light source module, and a third window matching the second light detector, the first window, the second window, and the third window are rectangles with long sides and short sides, and the short sides of the first window, the second window, and the third window are arranged along the long sides of the second shell.

9. The wearable device according to claim 8, characterized in that: A distance between two adjacent long sides of the second window and the first window is smaller than a distance between two adjacent long sides of the second window and the third window.

10. The wearable device according to claim 9, characterized in that: The material of the window is a highly transparent material, the material of the second shell is a light-shielding material, and the window and the second shell are injection-molded by a two-color injection molding process.

11. The wearable device according to claim 7, characterized in that: The device further comprises an elastic light-isolating plate, which is arranged between the mainboard and the second shell, and is provided with through holes for exposing the light source module and the light detection module.

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