Wearable device and detection device

Abstract

The invention provides a wearable device and a detection device. The wearable device comprises a detection module, and the detection module comprises a first light emitting group used for emitting first light; the second light emitting group comprises a plurality of light emitters, and the light emitters surround the periphery of the first light emitting group, are arranged at intervals and are used for emitting second light rays; the light emitting device comprises a first light emitting group, a second light emitting group and a light receiving group, the light receiving group comprises a plurality of light receivers, the light receivers surround the periphery of the first light emitting group and are arranged at intervals, each light emitting device is arranged between two adjacent light receivers, and the light receivers are used for receiving at least one of the first light and the second light. When the wearable device is used for life signal detection, the wearable device has high accuracy.

Description

Technical Field

[0001] The present application relates to the field of electronics, and in particular to a wearable device and a detection device. Background Art

[0002] Existing wearable devices or detection devices include detection modules that can detect heart rate and blood oxygen. The detection module includes a light emitter and a light receiver. After the light emitter emits light, it is reflected by the living body and enters the light receiver. The light receiver monitors the health of the living body by detecting the change in the intensity of the reflected light. However, the detection accuracy of the existing detection module is low. Summary of the invention

[0003] A first aspect of the present application provides a wearable device, wherein the wearable device includes a detection module, and the detection module includes:

[0004] A first light emitting group, used for emitting a first light;

[0005] a second light-emitting group, the second light-emitting group comprising a plurality of light emitters, the plurality of light emitters surrounding the periphery of the first light-emitting group and arranged at intervals, and configured to emit a second light; and

[0006] A light receiving group, the light receiving group includes a plurality of light receivers, the plurality of light receivers surround the periphery of the first light emitting group and are arranged at intervals, each of the light emitters is arranged between two adjacent light receivers, and the light receivers are used to receive at least one of the first light and the second light.

[0007] A second aspect of the present application provides a detection device, the detection device comprising a detection module, the detection module comprising:

[0008] A first light emitting group, used for emitting a first light;

[0009] a second light-emitting group, the second light-emitting group comprising a plurality of light emitters, the plurality of light emitters surrounding the periphery of the first light-emitting group and arranged at intervals, and configured to emit a second light; and

[0010] A light receiving group, the light receiving group includes a plurality of light receivers, the plurality of light receivers surround the periphery of the first light emitting group and are arranged at intervals, each of the light emitters is arranged between two adjacent light receivers, and the light receivers are used to receive at least one of the first light and the second light.

[0011] The wearable device of the embodiment of the present application includes a detection module, which includes a first light-emitting group, a second light-emitting group and a light-receiving group, wherein the first light-emitting group is used to emit a first light; the second light-emitting group includes a plurality of light emitters, which surround the periphery of the first light-emitting group and are arranged at intervals, and are used to emit a second light; the light-receiving group includes a plurality of light receivers, which surround the periphery of the first light-emitting group and are arranged at intervals, each of the light emitters is arranged between two adjacent light receivers, and the light receivers are used to receive the first light and the second light. In this way, the multiple light emitters in the first light-emitting group and the second light-emitting group and the multiple light receivers can form multiple channels at a closer distance and multiple channels at a farther distance. When performing heart rate detection, the first light-emitting group or multiple light emitters that are closer to the light receiver can be used to emit green light, so as to obtain a better signal-to-noise ratio and improve the accuracy of heart rate measurement; when performing blood oxygen detection, the multiple channels at a closer distance and the multiple channels at a farther distance can be coordinated. The distribution of human blood vessels is dense, and the blood vessel distribution is different in different people. The combination of channels at a closer distance and channels at a farther distance can be suitable for a wider range of people. When performing blood oxygen detection, the channels at a farther distance can improve the perfusion degree of blood oxygen detection, thereby improving the accuracy of blood oxygen detection. In addition, the channels at a closer distance obtain a stronger light signal intensity, so that the blood oxygen detection can have a higher accuracy and a stronger signal intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of a wearable device according to an embodiment of the present application.

[0014] Figure 2 It is a schematic diagram of a partial explosion structure of a wearable device according to an embodiment of the present application.

[0015] Figure 3 It is a schematic diagram of the structure of a detection module according to an embodiment of the present application.

[0016] Figure 4 This is a schematic diagram of a partial explosion structure of a wearable device according to another embodiment of the present application.

[0017] Figure 5 It is a schematic diagram of the combined structure of the detection module and the shading element according to an embodiment of the present application.

[0018] Figure 6 Schematic diagram of the structure of a shading element according to an embodiment of the present application.

[0019] Figure 7 This is a circuit block diagram of a wearable device according to an embodiment of the present application.

[0020] Figure 8 This is a schematic diagram of a partial explosion structure of a wearable device according to another embodiment of the present application.

[0021] Fig. 9 It is a schematic diagram of the planar structure of a lens body according to an embodiment of the present application.

[0022] Fig.10 It is a schematic diagram of the planar structure of a focusing lens according to an embodiment of the present application.

[0023] Fig.11 The focusing lens of one embodiment of the present application is along Fig.10 Cross-sectional view along the AA direction.

[0024] Fig.12 It is a schematic diagram of the planar structure of a lens body according to another embodiment of the present application.

[0025] Fig.13 It is a schematic diagram of the planar structure of a focusing lens according to another embodiment of the present application.

[0026] Fig.14 yes Fig.12 Enlarged view of the dashed box I in the middle.

[0027] Fig.15 is a schematic diagram of a partial explosion structure of a wearable device according to another embodiment of the present application, wherein: Fig.15 Perspective and Figure 2 The perspective is different.

[0028] Fig.16 The cover edge of an embodiment of the present application Fig.15 Cross-sectional view along the BB direction.

[0029] Fig.17 It is a schematic diagram of a partial explosion structure of a wearable device according to an embodiment of the present application.

[0030] Fig.18 This is a circuit block diagram of a wearable device according to another embodiment of the present application.

[0031] Fig.19 It is a structural schematic diagram of a wearable device according to another embodiment of the present application.

[0032] Fig. 20 It is a schematic diagram of the structure of a detection device according to an embodiment of the present application.

[0033] Fig.21It is a schematic diagram of the partial explosion structure of the detection device of one embodiment of the present application.

[0034] Fig. 22 It is a schematic diagram of the partial explosion structure of a detection device according to another embodiment of the present application.

[0035] Fig.23 It is a circuit block diagram of a detection device according to an embodiment of the present application.

[0036] Fig.24 It is a schematic diagram of the partial explosion structure of a detection device according to another embodiment of the present application.

[0037] Description of reference numerals:

[0038] 100-wearable device, 10-detection module, 11-first light-emitting group, 11a-light emitter, 111-first light emitter, 112-second light emitter, 12-second light-emitting group, 12a-light emitter, 121-first light emitter, 122-second light emitter, 13-light receiving group, 13a-light receiver, 131-first light receiver, 132-second light receiver, 14-processor, 20-light shielding member, 21-first light shielding portion, 211-first through hole, 22-second light shielding portion, 221-second through hole, 30-condensing lens, 3 1-lens body, 311-first window, 312-second window, 313-third window, 314-first through groove, 315-second through groove, 32-first ink layer, 33-second ink layer, 34-first photoresist layer, 35-second photoresist layer, 40-cover plate, 41-cover body, 411-annular groove, 412-first visual area, 413-second visual area, 414-third visual area, 42-third photoresist layer, 43-third ink layer, 50-middle frame, 60-display screen, 70-wearing piece, 71-wearing slot, 200-detection equipment. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings 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.

[0040] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0041] It should be noted that, for the convenience of explanation, in the embodiments of the present application, the same figure marks represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments.

[0042] Photoplethysmo Graphic (PPG) is based on light emitting diodes (LEDs) or laser diodes (LDs) and photodiodes (PDs). LEDs or LDs emit light, such as green light, red light and infrared light, which passes through tissues and arteries and veins in the skin and is absorbed and reflected back to the photodiode. The absorption of light by muscles, bones, veins and other tissues is basically unchanged, but the blood in the arteries is flowing, and the absorption of light naturally changes. When we convert light into electrical signals, the signals obtained can be divided into DC signals and AC signals because the absorption of light by arteries changes while the absorption of light by other tissues remains basically unchanged. Extracting the AC signal can reflect the characteristics of blood flow, so that blood oxygen, heart rate, pulse, etc. can be detected. For example, when measuring heart rate and blood oxygen saturation, light is used to illuminate human skin tissue, and the light intensity changes periodically with the change of blood volume caused by heart fluctuations. By measuring this PPG signal, the heart rate and blood oxygen saturation can be calculated.

[0043] Currently, photoplethysmography is often used in wearable devices such as smart watches, phone watches, smart bracelets, etc., so that the health status of life forms such as human bodies (such as heart rate or blood oxygen) can be detected in real time, and an alarm can be issued in time when an abnormality occurs. Therefore, the accuracy of wearable devices is particularly important.

[0044] See also Figures 1 to 3The embodiment of the present application provides a wearable device 100, the wearable device 100 includes a detection module 10, the detection module 10 includes a first light-emitting group 11, a second light-emitting group 12 and a light-receiving group 13, the first light-emitting group 11 is used to emit a first light; the second light-emitting group 12 includes a plurality of light emitters 12a, the plurality of light emitters 12a surround the periphery of the first light-emitting group 11 and are arranged at intervals, and are used to emit a second light; the light-receiving group 13 includes a plurality of light receivers 13a, the plurality of light receivers 13a surround the periphery of the first light-emitting group 11 and are arranged at intervals, each of the light emitters 12a is arranged between two adjacent light receivers 13a, and the light receiver 13a is used to receive at least one of the first light and the second light.

[0045] The term "plurality" means greater than or equal to two, for example, two, three, four, five, six, seven, eight, etc.

[0046] It can be understood that the plurality of light emitters 12a are arranged at intervals, and each of the light emitters 12a is arranged at intervals from the first light emitting group 11. The plurality of light receivers 13a are arranged at intervals, and each of the light receivers 13a is arranged at intervals from the first light emitting group 11.

[0047] Optionally, the plurality of light emitters 12 a are evenly distributed on the periphery of the first light-emitting group 11 , and the plurality of light receivers 13 a are evenly distributed on the periphery of the first light-emitting group 11 .

[0048] Optionally, the light emitter 12a may be, but is not limited to, a light emitting diode (LED) or a laser diode (LD). The light receiver 13a may be, but is not limited to, a photodiode.

[0049] Optionally, the first light includes red light, infrared light and green light, and the second light includes red light and infrared light.

[0050] In the drawings of this embodiment, the number of light emitters 12a and light receivers 13a is merely an illustration of one possible method and should not be understood as a limitation on the number of light emitters 12a and light receivers 13a of the present application.

[0051] The wearable device 100 of the present application may be, but is not limited to, a smart watch, a phone watch, a smart bracelet, etc. It is understandable that the wearable device 100 in the drawings of the present application is only one form of the wearable device 100. In the drawings of the present application, the wearable device 100 is illustrated by taking a smart watch as an example, which should not be understood as a limitation on the wearable device 100 provided in the present application.

[0052] The wearable device 100 of the present application can be used to detect life signals or health parameters such as heart rate and blood oxygen of a living being (such as a human body). When the wearable device 100 is used to detect life signals of a living being, the light emitting surfaces of the first light emitting group 11 and the second light emitting group 12 face the living being, and are used to emit the first light and the second light toward the living being, and the receiving surfaces of the multiple light receivers 13a all face the living being, and are used to receive the first light and the second light reflected back by the living being.

[0053] The wearable device 100 of the embodiment of the present application includes a detection module 10, which includes a first light-emitting group 11, a second light-emitting group 12 and a light-receiving group 13. The first light-emitting group 11 is used to emit a first light; the second light-emitting group 12 includes a plurality of light emitters 12a, which surround the outer periphery of the first light-emitting group 11 and are arranged at intervals, and are used to emit a second light; the light-receiving group 13 includes a plurality of light receivers 13a, which surround the outer periphery of the first light-emitting group 11 and are arranged at intervals, each of the light emitters 12a is arranged between two adjacent light receivers 13a, and the light receivers 13a are used to receive the first light and the second light. In this way, the multiple light emitters 12a in the first light-emitting group 11 and the second light-emitting group 12 and the multiple light receivers 13a can form multiple channels at a closer distance and multiple channels at a farther distance. When performing heart rate detection, the first light-emitting group 11 or multiple light emitters 12a that are closer to the light receiver 13a can be used to emit green light, so as to obtain a better signal-to-noise ratio and improve the accuracy of heart rate measurement; when performing blood oxygen detection, multiple channels at a closer distance and multiple channels at a farther distance can be combined. The distribution of human blood vessels is dense, and the distribution of blood vessels in different people is different. The combination of channels at a closer distance and channels at a farther distance can be applicable to a wider range of people. When performing blood oxygen detection, channels at a farther distance can improve the perfusion degree of blood oxygen detection (also known as blood perfusion index, Perfusion Index, abbreviated as PI), thereby improving the accuracy of blood oxygen detection. In addition, channels at a closer distance obtain stronger light signal intensity, so that blood oxygen detection can have both higher accuracy and stronger signal intensity.

[0054] See also Figures 4 to 6In some embodiments, the plurality of light emitters 12a include a first light emitter 121 and a second light emitter 122; the plurality of light receivers 13a include a first light receiver 131 and a second light receiver 132; the wearable device 100 further includes a shading member 20, the shading member 20 is disposed on one side of the detection module 10, the shading member 20 includes a first shading portion 21 and a second shading portion 22, the first shading portion 21 has a first through hole 211, the first through hole 211 is used to set the first light-emitting group 11, and the first shading portion 21 is located between the first light-emitting group 11 and the The second light-receiving group 13; the head and tail ends of the second light-shielding portion 22 are spaced apart and respectively connected to the first light-shielding portion 21 and enclose a second through hole 221 with the first light-shielding portion 21, and the second through hole 221 is used to set the first light emitter 121 and the first light receiver 131; the second light emitter 122 is set on the side of the first light-shielding portion 21 away from the second light-shielding portion 22 and on the side of the first light-emitting group 11 away from the first light emitter 121; the second light receiver 132 is set on one side of the light-shielding member 20 and is adjacent to the second light emitter 122.

[0055] It can be understood that the first shading portion 21 is arranged around the periphery of the first light-emitting group 11, and the plurality of light receivers 13a of the light receiving group 13 are evenly distributed around the periphery of the first shading portion 21. The plurality of light emitters 12a are evenly distributed around the periphery of the first shading portion 21.

[0056] It should be noted that the second light emitter 122 is arranged on the side of the first shading portion 21 away from the second shading portion 22, and is arranged on the side of the first light-emitting group 11 away from the first light emitter 121. It can be understood that the first light emitter 121 and the second light emitter 122 are arranged on opposite sides of the first shading portion 21.

[0057] It can be understood that a portion of the multiple light emitters 12a are located in the second through hole 221, another portion of the multiple light emitters 12a are located on the side of the first shielding portion away from the second shielding portion, and a portion of the multiple light receivers 13a are located in the second through hole 221, and another portion of the multiple light receivers 13a are located on the side of the first shielding portion away from the second shielding portion.

[0058] It can be understood that the first light shielding portion 21 is sleeved on the outer periphery of the first light emitting group 11 and is spaced apart from the first light emitting group 11. The second light shielding portion 22 is sleeved on the outer periphery of the first light emitter 121 and the first light receiver 131 and is spaced apart from the first light emitter 121 and the first light receiver 131, respectively.

[0059] Optionally, the first and last ends of the second light shielding portion 22 are respectively connected to the opposite ends of the first light shielding portion 21 .

[0060] Optionally, the first light shielding portion 21 may be, but not limited to, a circular ring structure, a rectangular ring structure, etc., and the second light shielding portion 22 may be, but not limited to, a semicircular ring structure, a semirectangular ring structure, etc. It is also understandable that the first through hole 211 may be, but not limited to, a circular through hole, a rectangular through hole, etc., and the second through hole 221 may be, but not limited to, a semicircular ring through hole, a semirectangular ring through hole, etc.

[0061] Optionally, the first light shielding portion 21 and the second light shielding portion 22 are an integrated structure. In other words, the first light shielding portion 21 and the second light shielding portion 22 are two different parts of the same component.

[0062] Optionally, the shading member 20 may be, but is not limited to, a shading foam, a shading rubber member, a shading silicone member, or a shading plastic member.

[0063] Optionally, the first light emitter 121 includes a red light and an infrared light (i.e., the first light emitter 121 is a two-in-one light), and the first light emitter 121 can emit at least one of red light and infrared light, and the red light and infrared light in the first light emitter 121 can work simultaneously or independently. The second light emitter 122 includes a red light and an infrared light (i.e., the second light emitter 122 is a two-in-one light), and the second light emitter 122 can emit at least one of red light and infrared light, and the red light and infrared light in the second light emitter 122 can work simultaneously or independently.

[0064] In this embodiment, a shading member 20 is provided, the shading member 20 includes a first shading portion 21 and a second shading portion 22, the first light-emitting group 11 is provided in the first through hole 211 of the first shading portion 21, and a plurality of light receivers 13a are provided around the outer periphery of the first shading portion 21, so that the first shading portion 21 can prevent the first light emitted by the first light-emitting group 11 from entering the plurality of light receivers 13a without being reflected by the living body; in addition, the first light emitter 121 of the second light-emitting group 12 is provided in the second through hole 221 enclosed by the first shading portion 21 and the second shading portion 22, and the first light emitter 121 of the second light-emitting group 12 The second light emitter 122 is arranged on the side of the first shading portion 21 away from the second shading portion 22 and on the side of the first light-emitting group 11 away from the first light emitter 121, so that the second shading portion can block the second light emitted by the first light emitter 121 from directly entering the second light receiver 132 without being reflected by the living body, and the second shading portion can also prevent the second light emitted by the second light emitter 122 from directly entering the first light receiver 131 without being reflected by the living body; therefore, by setting the shielding member, the signal-to-noise ratio of the detection module 10 can be improved, and the accuracy of the detection module 10 in detecting life signals can be improved.

[0065] In some embodiments, when the first light emitter 121 is turned on, the second light emitter 122 and the first light receiver 131 are turned off, and the second light receiver 132 receives the second light emitted by the first light emitter 121; when the second light emitter 122 is turned on, the first light emitter 121 and the second light receiver 132 are turned off, and the first light receiver 131 receives the second light emitted by the second light emitter 122.

[0066] In this embodiment, when the first light emitter 121 or the second light emitter 122 is turned on and working, the second light receiver 132 or the first light receiver 131 arranged opposite to the first light emitter 121 or the second light emitter 122 is used to receive the second light. In this way, the distance between the working light emitter 12a and the light receiver 13a can be increased, the perfusion degree of blood oxygen detection can be improved, and thus the accuracy of blood oxygen detection can be improved.

[0067] In some embodiments, the number of the first light receivers 131 is two, and the two first light receivers 131 are spaced apart on both sides of the first light emitter 121 and are closer to the second light receiver 132 than the first light emitter 121; the number of the second light receivers 132 is two, and the two second light receivers 132 are spaced apart on both sides of the second light emitter 122 and are closer to the first light receiver 131 than the second light emitter 122; one of the two first light receivers 131 is disposed opposite to one of the two second light receivers 132, and the other of the two first light receivers 131 is disposed opposite to the other of the two second light receivers 132.

[0068] It can be understood that the plurality of light receivers 13a include four light receivers 13a. Optionally, the four light receivers 13a are evenly distributed on the periphery of the first shielding portion, two of the four light receivers 13a are arranged on one side of the shielding member, and the other two are arranged in the second through hole 221; it can also be understood that the four light receivers 13a are evenly distributed on the periphery of the first light-emitting group 11.

[0069] It should be noted that one of the two first light receivers 131 is arranged opposite to one of the two second light receivers 132, and the other of the two first light receivers 131 is arranged opposite to the other of the two second light receivers 132. It can be understood that the first light receivers 131 and the second light receivers 132 correspond to each other one by one, and one first light receiver 131 and one second light receiver 132 are arranged on opposite sides of the first shielding portion, and another first light receiver 131 and another second light receiver 132 are arranged on opposite sides of the first shielding portion. It can also be understood that the two first light receivers 131 and the two second light receivers 132 form two pairs of first light receivers 131 and second light receivers 132 that are arranged opposite to each other.

[0070] It should be noted that the two first light receivers 131 are arranged at intervals on both sides of the first light emitter 121, and the two second light receivers 132 are arranged at intervals on both sides of the second light emitter 122; it can be understood that the first light emitter 121 is arranged between the two first light receivers 131, but can be offset from the exact center position; similarly, the second light emitter 122 is arranged between the two second light receivers 132, but can be offset from the exact center position.

[0071] In a specific embodiment, the number of the first light emitter 121 and the number of the second light emitter 122 are both one.

[0072] In a specific embodiment, the plurality of light emitters 12a and the plurality of light receivers 13a are arranged along the same circular track.

[0073] In this embodiment, by providing two first light receivers 131 and two second light receivers 132, and by arranging the positional relationship between the first light receiver 131 and the first light emitter 121, and the second light receiver 132 and the second light emitter 122, the first light emitter 121 and the second light receiver 132, and the second light emitter 122 and the first light receiver 131 can be arranged at a greater distance, and when performing blood oxygen detection, the perfusion degree of blood oxygen detection can be better improved, thereby improving the accuracy of blood oxygen detection. In addition, the arrangement of multiple light emitters and multiple light receivers 13a can be made more compact, saving the space occupied by the detection module 10, thereby reducing the volume of the wearable device 100.

[0074] Please see again Figure 5 In some embodiments, the first light emitting group 11 includes a plurality of light emitters 11a arranged at intervals, and the light emitters 11a are used to emit the first light. The plurality of light emitters 11a include two first light emitters 111 and two second light emitters 112, the two first light emitters 111 are arranged at intervals between a first light receiver 131 and a second light receiver 132 that are arranged oppositely, and the two second light emitters 112 are arranged at opposite sides of the two second light emitters 122, and are arranged between another first light receiver 131 and a second light receiver 132 that are arranged oppositely.

[0075] Optionally, the light emitter 11a may be, but is not limited to, a light emitting diode (LED) or a laser diode (LD).

[0076] It can be understood that the two first light transmitters 111 and a pair of first light receivers 131 and second light receivers 132 are collinearly arranged, that is, located on the same straight line. The two second light transmitters 112 and another pair of first light receivers 131 and second light receivers 132 are collinearly arranged, that is, located on the same straight line.

[0077] Optionally, the first light emitter 111 includes a red light, an infrared light, and a green light (i.e., the first light emitter 111 is a three-in-one light), and the first light emitter 111 can emit at least one of red light, infrared light, and green light, and the red light and infrared light of the first emitter can work simultaneously or independently, and the green light and the red light, and the green light and the infrared light of the first emitter can work independently. The second light emitter 112 includes a red light and an infrared light (i.e., the second light emitter 112 is a two-in-one light), and the second light emitter 112 can emit at least one of red light and infrared light, and the red light and the infrared light of the second light emitter 112 can work simultaneously or independently.

[0078] In this embodiment, the two first light emitters 111 can emit green light, and the four light receivers 13a receive it. By controlling the two second light emitters 112 to emit green light, 8 heart rate detection channels can be formed. In addition, the two first light emitters 111 and the two second light emitters 112 can form 16 blood oxygen detection channels with different distances and directions with the four light receivers 13a. The two first light emitters 111 and the two second light emitters 112 and the light receivers 13a include multiple channels with different distances from near to far, which improves the accuracy of blood oxygen measurement. Since, when the first light emitter 121 emits the second light, only the two second light receivers 132 receive the signal, and when the second light emitter 122 emits the second light, only the two first light receivers 131 receive the signal, therefore, the first light emitter 121, the second light emitter 122 and the four light receivers 13a can form 4 blood oxygen detection channels, and the distance between the light emitters 12a and the light receivers 13a of these 4 blood oxygen detection channels is the longest.

[0079] It should be noted that when it is necessary to measure the heart rate of a living being such as a human body, the first light emitter 111 can be controlled to emit green light, and the light receiver 13a can receive the green light signal reflected by the human body, and detect according to the received green light signal, and obtain the heart rate parameter of the human body. When it is necessary to measure blood oxygen, the first light emitter 121, the second light emitter 122, the first light emitter 111, and the second light emitter 112 can be controlled to emit red light and infrared light according to a preset rule and sequence, and the light receiver 13a can be used to receive the green light signal reflected by the human body, and detect according to the received green light signal, and obtain the blood oxygen saturation parameter of the human body.

[0080] In this embodiment, by providing a plurality of light emitters 11a in the first light emitting group 11, the channels for heart rate detection and blood oxygen detection can be increased, thereby improving the accuracy of heart rate and blood oxygen detection of the wearable device 100. In addition, by designing the arrangement of the first light emitter 111 and the second light emitter 112 and the plurality of light receivers 13a, the structural arrangement between the first light emitting group 11, the second light emitting group 12 and the light receiving group 13 can be made more compact, saving the space occupied by the detection module 10, thereby reducing the volume of the wearable device 100.

[0081] Optionally, the green lights of the two first light emitters 111 are arranged opposite to each other. It can be understood that the red lights and infrared lights of the two first light emitters 111 are arranged side by side and facing each other. In other words, the green light of the same first light emitter 111 is arranged closer to the first light receiver 131 or the second light receiver 132 than the red light and the infrared light.

[0082] In this embodiment, by arranging the green lights of the two first light emitters 111 back to back, the green lights in the two first light emitters 121 can be closer to the first light receiver 131 and the second light receiver 132 that are collinear therewith. When emitting green lights, a better signal-to-noise ratio can be obtained, thereby improving the accuracy of heart rate detection.

[0083] In a specific embodiment, the first light-emitting group 11 of the detection module 10 of the present application includes two first light emitters 111 and two second light emitters 112; the second light-emitting group 12 includes a first light emitter 121 and a second light emitter 122, and the first light emitter 121 and the second light emitter 122 are arranged on opposite sides of the first light-emitting group 11; the light receiving group 13 includes four light receivers 13a, the four light receivers 13a include two first light receivers 131 and two second light receivers 132, and the four light receivers 13a are evenly distributed on the periphery of the first light-emitting group 11, the two first light receivers 131 are adjacent to each other, and the two second light receivers 132 are also adjacent to each other, the first light emitter 121 is arranged between the two first light receivers 131 and is equal to the distance between the two first light receivers 131, and the second light emitter 122 is arranged between the two second light receivers 132 and is equal to the distance between the two second light receivers 132.

[0084] In this embodiment, the distance between the two first light emitters 111 is 0.3mm, and the distances between the first light emitter 111 and the four light receivers 13a are 3.85mm, 5.1mm and 6.1mm respectively; the spacing between the first light emitter 111 and the second light emitter 112 is 0.35mm, and the spacing between the two second light emitters 112 is 2.45mm; the distance between the first light emitter 121 and the second light emitter 122 is 9.8mm; the distance between the first light emitter 121 and the first light receiver 131 is 3.85mm, and the distance between the second light emitter 122 and the second light receiver 132 is 3.85mm; the distance between the first light emitter 121 and the second light receiver 132 is 9.12mm, and the distance between the second light emitter 122 and the first light receiver 131 is 9.12mm. Because the light emitting angle of the LED is a Lambert body and the emission angle is 120°, the maximum emitted light can be achieved and the energy of the optical signal can be improved. The spacing between adjacent light receivers 13a is 7.28mm, and the spacing between the first light receiver 131 and the second light receiver 132 is 10.3mm, so that the received light signal can be maximized. The diameter of the area covered by the first light-emitting group 11 is about 4.6mm, and the inner diameter of the area enclosed by the second light-emitting group 12 and the light receiver 13a is about 8.4mm, and the outer diameter is about 11.6mm.

[0085] See also Figure 7In some embodiments, the detection module 10 also includes a processor 14, which is electrically connected to the first light-emitting group 11, the second light-emitting group 12 and the light-receiving group 13, respectively. The processor 14 is used to control the first light-emitting group 11 to emit the first light and control the second light-emitting group 12 to emit the second light, and control the light-receiving group 13 to receive at least one of the first light and the second light, and detect a life signal based on at least one of the first light and the second light received by the light-receiving group 13.

[0086] It can be understood that the multiple light receivers 13a of the light receiving group 13 obtain the vital signals such as the heart rate and blood oxygen of the target object according to at least one of the first light and the second light received.

[0087] Optionally, the processor 14 includes one or more general-purpose processors, wherein the general-purpose processor can be any type of device capable of processing electronic instructions, including a central processing unit (CPU), a microprocessor, a microcontroller, a main processor, a controller, and an ASIC, etc. The processor 14 is used to execute various types of digital storage instructions, such as software or firmware programs stored in the memory 15, which enables the computing device to provide a wide variety of services.

[0088] In some embodiments, the detection module 10 further includes a memory 15 , which is electrically connected to the processor 14 and is used to store program codes required for the processor 14 to run, program codes required for controlling the light emitter 12a and the light receiver 13a to work, etc.

[0089] Optionally, the memory 15 may include a volatile memory (Volatile Memory), such as a random access memory (Random Access Memory, RAM); the memory 15 may also include a non-volatile memory (NVM), such as a read-only memory (Read-Only Memory, ROM), a flash memory (Flash Memory, FM), a hard disk drive (Hard Disk Drive, HDD) or a solid-state drive (SSD). The memory 15 may also include a combination of the above-mentioned types of memory.

[0090] See also Figure 8 and Fig. 9In some embodiments, the wearable device 100 further includes a focusing lens 30, which is disposed on one side of the detection module 10, and is used to converge the first light emitted by the first light-emitting group 11 and the second light emitted by the second light-emitting group 12; the focusing lens 30 includes a lens body 31, and the lens body 31 has a first window 311, a second window 312 and a third window 313, the second window 312 and the third window 313 are spaced apart on both sides of the first window 311, the first window 311 covers the first light-emitting group 11, the second window 312 covers part of the multiple light emitters 12a and part of the multiple light receivers 13a, and the third window 313 covers another part of the multiple light emitters 12a and another part of the multiple light receivers 13a.

[0091] It can be understood that when the wearable device 100 includes a shading member 20 and a focusing lens 30 , the focusing lens 30 is disposed on a side of the shading member 20 that is away from the detection module 10 .

[0092] Optionally, the first window 311 may be, but not limited to, annular, rectangular, etc. The second window 312 may be, but not limited to, semicircular, semirectangular, fan-shaped, etc. The third window 313 may be, but not limited to, semicircular, semirectangular, fan-shaped, etc.

[0093] In a specific embodiment, the first window 311 is circular, the second window 312 and the third window 313 are semicircular, and the second window 312 and the third window 313 are disposed around the outer circumference of the first window 311 .

[0094] It should be noted that the second window 312 covers part of the plurality of light emitters 12a and part of the plurality of light receivers 13a, and the third window 313 covers another part of the plurality of light emitters 12a and another part of the plurality of light receivers 13a. It can be understood that the second window 312 covers the first light emitter 121 and the first light receiver 131, and the second window 312 covers the second light emitter 122 and the second light receiver 132. In other words, the light emitting surface of the first light emitter 121 and the receiving surface of the first light receiver 131 both face the second window 312 and are covered by the second window 312; the light emitting surface of the second light emitter 122 and the receiving surface of the second light receiver 132 both face the third window 313 and are covered by the third window 313.

[0095] Optionally, the lens body 31 is a Fresnel lens, and the Fresnel lens has a light surface (not shown) and a threaded surface (also called an etched surface or a textured surface, not shown) disposed opposite to each other, the light surface is disposed away from the detection module 10, and the threaded surface is disposed toward the detection module 10. By using a Fresnel lens as the lens body 31 of the focusing lens 30, the thickness of the focusing lens 30 can be greatly reduced, making the wearable device 100 more ultra-thin.

[0096] Optionally, the focus of the condenser lens 30 is located on a side of the condenser lens 30 away from the detection module 10 .

[0097] It can be understood that the area of ​​the focusing lens 30 except the first window 311 , the second window 312 and the third window 313 is a non-window area, that is, it is opaque.

[0098] In this embodiment, by setting a focusing lens 30, the first light emitted by the first light-emitting group 11 and the second light emitted by the second light-emitting group 12 are converged and then emitted to the living body. In this way, more light emitted by the first light-emitting group 11 and the second light-emitting group 12 can be emitted to the living body and then emitted back to the light receiving group 13, so as to better improve the signal-to-noise ratio of vital signal detection such as heart rate and blood oxygen, thereby improving the accuracy of vital signal detection of the wearable device 100.

[0099] See also Fig.10 and Fig.11 Optionally, the focusing lens 30 further includes a first ink layer 32 and a second ink layer 33, wherein the first ink layer 32 is disposed on the surface of the lens body 31 facing the detection module 10 and covers the area outside the first window 311, the second window 312 and the third window 313 (i.e., the non-window area); the second ink layer 33 is disposed on the surface of the lens body 31 away from the detection module 10 and covers the area outside the first window 311, the second window 312 and the third window 313 (i.e., the non-window area). The first ink layer 32 and the second ink layer 33 are used to prevent the first light and the second light incident on the two opposite surfaces of the lens body 31 from being reflected into the light receiving group 13 before being reflected by the living body (i.e., reducing the crosstalk between the first window 311, the second window 312 and the third window 313), thereby reducing signal interference, improving the signal-to-noise ratio of the signal received by the light receiving group 13, and improving the accuracy of life signal detection of the wearable device 100.

[0100] See also Fig.12 and Fig.13In some embodiments, the lens body 31 further has two first through grooves 314, which extend around the periphery of the first window 311 and are arranged at intervals, and one of the two first through grooves 314 is arranged between the first window 311 and the second window 312, and the other of the two second through grooves 315 is arranged between the first window 311 and the third window 313; the focusing lens 30 also includes a first photoblocking layer 34, which covers the side walls of the two first through grooves 314, and is used to reduce light crosstalk between the first window 311 and the second window 312, and between the first window 311 and the third window 313.

[0101] It can be understood that the first through groove 314 is a semi-annular through groove, and the semi-annular through groove can be but is not limited to a semi-circular through groove, a semi-rectangular through groove, etc.

[0102] Optionally, the first photoresist layer 34 may be, but is not limited to, a light-shielding ink layer, such as a black ink layer, or an ablation layer generated by laser engraving.

[0103] In this embodiment, by setting a first through groove 314 and setting a first photoresist layer 34 on the side wall of the first through groove 314, the light crosstalk between the first window 311 and the second window 312 and between the first window 311 and the third window 313 can be better reduced, thereby reducing signal interference, improving the signal-to-noise ratio of the signal received by the light receiving group 13, and improving the accuracy of life signal detection of the wearable device 100.

[0104] See also Fig.14 , optionally, the line width w1 of the first through groove 314 is in the range of 0.2mm≤w1≤0.6mm. Specifically, the line width w1 of the first through groove 314 may be, but is not limited to, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, etc. The larger the line width w1 of the first through groove 314, the better the effect of preventing internal light from flowing between the first window 311, the second window 312, and the third window 313 of the lens body 31. However, when the line width w1 of the first through groove 314 is large, it is necessary to form the first through groove 314 through multiple cuttings, which increases the cost of the focusing lens 30 and reduces the mechanical strength of the lens body 31. In addition, due to the size of the lens body 31, the line width of the first through groove 314 cannot be too large; when the line width w1 of the first through groove 314 is too small, the effect of preventing internal light from flowing between the focusing lens 30 is reduced, and the difficulty of engraving the first through groove 314 is increased.

[0105] Optionally, the range of the spacing d1 between two adjacent first through grooves 314 is 1.0 mm ≤ d1 ≤ 1.6 mm. Specifically, the spacing d1 between two adjacent first through grooves 314 may be, but is not limited to, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, etc. If the spacing d1 between two adjacent first through grooves 314 is too small, the mechanical strength of the lens body 31 is reduced; if the spacing d1 between two adjacent first through grooves 314 is too large, the anti-light-channeling effect inside the focusing lens 30 is reduced.

[0106] Optionally, when the first through groove 314 is in a semicircular shape, the center angle of the first through groove 314 ranges from 120° to 160°; specifically, the center angle of the first through groove 314 may be, but is not limited to, 120°, 125°, 130°, 135°, 140°, 145°, 150°, 155°, 160°, etc. If the center angle of the first through groove 314 is too small, the effect of the condenser lens 30 in preventing internal light leakage is weak; if the center angle of the first through groove 314 is too large, the mechanical strength of the condenser lens 30 is reduced.

[0107] Please see again Figure 12 to Figure 14 In some embodiments, the lens body 31 further has two second through grooves 315, and the two second through grooves 315 are spaced apart at opposite sides of the first window 311, and are both located between the second window 312 and the third window 313, and the second through grooves 315 are spaced apart from the first through grooves 314, and the focusing lens 30 further includes a second photoresist layer 35, and the second photoresist layer 35 covers the side walls of the two second through grooves 315.

[0108] It should be noted that the two second through slots 315 are spaced apart at opposite sides of the first window 311 , which can be understood as the second through slot 315 being disposed on a side of the first through slot 314 away from the first window 311 .

[0109] It can be understood that one of the two second through slots 315 is disposed close to one end of the second window 312 and the third window 313 , and the other of the two second through slots 315 is disposed close to the other end of the second window 312 and the third window 313 .

[0110] Optionally, the second through slot 315 is a linear through slot or a rectangular through slot.

[0111] Optionally, the second photoresist layer 35 may be, but is not limited to, a light-shielding ink layer, such as a black ink layer, or an ablation layer generated by laser engraving.

[0112] In this embodiment, by providing the second through groove 315, and providing the second photoresist layer 35 in the second through groove 315, it is possible to better reduce the internal light crosstalk between the first window 311 and the second window 312, and between the first window 311 and the third window 313, thereby reducing signal interference, improving the signal-to-noise ratio of the signal received by the light receiving group 13, and improving the accuracy of life signal detection of the wearable device 100. In addition, the first through groove 314 and the second through groove 315 are arranged at intervals, which can improve the mechanical strength of the lens body 31, thereby improving the anti-drop and anti-impact capabilities of the focusing lens 30.

[0113] Optionally, the line width w2 of the second through groove 315 is in the range of 0.2 mm ≤ w2 ≤ 0.6 mm. Specifically, the line width w2 of the second through groove 315 may be, but is not limited to, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, etc. The larger the line width w2 of the second through groove 315, the better the effect of preventing internal light leakage between the first window 311, the second window 312 and the third window 313 of the lens body 31. However, when the line width w2 of the second through groove 315 is large, it is necessary to form the second through groove 315 through multiple cutting, which increases the cost of the focusing lens 30 and reduces the mechanical strength of the lens body 31. In addition, due to the size of the lens body 31, the line width of the second through groove 315 cannot be too large. If the line width w2 of the second through groove 315 is too small, the effect of preventing internal light leakage of the focusing lens 30 is reduced, and the difficulty of engraving the second through groove 315 is increased.

[0114] Optionally, the range of the distance d2 between the first through groove 314 and the second through groove 315 is 0.7 mm ≤ d2 ≤ 1.2 mm. Specifically, the distance d2 between the first through groove 314 and the second through groove 315 can be, but is not limited to, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, etc. If the distance d2 between the first through groove 314 and the second through groove 315 is too small, the mechanical strength of the lens body 31 is reduced; if the distance d2 between the first through groove 314 and the second through groove 315 is too large, the anti-light-channeling effect inside the focusing lens 30 is reduced.

[0115] Optionally, the length L of the second through slot 315 is in the range of 1.2 mm ≤ L ≤ 1.8 mm; specifically, the length L of the second through slot 315 may be, but is not limited to, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, etc. If the length L of the second through slot 315 is too short, the anti-light-channeling effect inside the focusing lens 30 is reduced; if the length L of the second through slot 315 is too long, the mechanical strength of the lens body 31 is reduced.

[0116] In a specific embodiment, the line width w1 of the first through groove 314 is 0.3 mm, the spacing d1 between two adjacent first through grooves 314 is 1.3 mm, the first through groove 314 is semicircular, the diameter of the semicircular first through groove 314 is 6.5 mm, and the center angle of the first through groove 314 is 151.7°. The line width w2 of the second through groove 315 is 0.3 mm, the length of the second through groove 315 is 1.5 mm, and the spacing d2 between the first through groove 314 and the second through groove 315 is 0.9 mm.

[0117] See also Figure 2 , Fig.15 and Fig.16 In some embodiments, the wearable device 100 further includes a cover plate 40, which is disposed on a side of the focusing lens 30 away from the detection module 10, and the cover plate 40 includes a cover body 41 and a third photoresist layer 42, the cover body 41 having an annular groove 411 located on a surface facing the focusing lens 30, and the annular groove 411 is disposed around the periphery of the first window 311 at the orthographic projection of the surface of the focusing lens 30 facing the cover plate 40; the third photoresist layer 42 covers the bottom wall and side walls of the annular groove 411.

[0118] It can be understood that the orthographic projection of the first viewing window 311 on the surface of the cover plate 40 facing away from the focusing lens 30 falls within the range of the annular groove 411 .

[0119] It can be understood that the third photoresist layer 42 can fill the entire annular groove 411 .

[0120] Optionally, the annular groove 411 may be, but is not limited to, a circular annular groove or a rectangular annular groove.

[0121] Optionally, the third photoresist layer 42 may be, but is not limited to, a light-shielding ink layer, such as a black ink layer, or an ablation layer produced by laser engraving.

[0122] Optionally, the material of the cover 41 may be but is not limited to at least one of glass, sapphire, and plastic.

[0123] In this embodiment, an annular groove 411 is formed on the surface of the cover plate 40, and a third photoresist layer 42 is arranged on the bottom wall and side wall of the annular groove 411. This can better prevent light leakage inside the cover plate 40, reduce signal interference, improve the signal-to-noise ratio of the signal received by the light receiving group 13, and improve the accuracy of life signal detection of the wearable device 100.

[0124] Optionally, the cover body 41 includes a first visible area 412, a second visible area 413 and a third visible area 414, the second visible area 413 and the third visible area 414 are arranged at intervals on both sides of the first visible area 412, the first visible area 412 is at least partially overlapped with the first window 311, the second visible area 413 is at least partially overlapped with the second window 312, and the third visible area 414 is at least partially overlapped with the third window 313. The cover plate 40 also includes a third ink layer 43, which is arranged on the surface of the cover body 41 facing the condenser lens 30 and covers the area except the first visible area 412, the second visible area 413, the third visible area 414 and the annular groove 411.

[0125] It can be understood that the annular groove 411 is disposed around the outer circumference of the first visible area 412 , and is located between the first visible area 412 and the second visible area 413 , and between the first visible area 412 and the third visible area 414 .

[0126] In this embodiment, the cover body 41 is covered with a third ink layer 43 except for the first visible area 412, the second visible area 413 and the third visible area 414. This can better reduce the light that is not reflected by the living body from entering the light receiver 13a, thereby reducing signal interference, improving the signal-to-noise ratio of the signal received by the light receiver 13a of the light receiving group 13, and improving the accuracy of life signal detection of the wearable device 100.

[0127] Optionally, the line width w3 of the annular groove 411 is in the range of: 0.4mm≤w3≤0.6mm. Specifically, the line width w3 of the annular groove 411 may be, but is not limited to, 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm, etc. The larger the line width w3 of the annular groove 411, the better the effect of preventing internal light leakage between the first visible area 412, the second visible area 413 and the third visible area 414 of the cover body 41. However, when the line width w3 of the annular groove 411 is large, it is necessary to form the annular groove 411 through multiple cutting, which increases the cost of the cover plate 40 and reduces the mechanical strength of the cover body 41. In addition, due to the size of the cover body 41, the line width of the annular groove 411 cannot be too large; when the line width w3 of the annular groove 411 is too small, the effect of preventing internal light leakage of the cover plate 40 is reduced, and the difficulty of engraving the annular groove 411 is increased.

[0128] Optionally, the depth h of the annular groove 411 is in the range of 0.2 mm ≤ h ≤ 0.3 mm. Specifically, the depth h of the annular groove 411 may be, but is not limited to, 0.2 mm, 0.22 mm, 0.24 mm, 0.26 mm, 0.28 mm, 0.3 mm, etc. If the depth of the annular groove 411 is too deep, the mechanical strength of the cover plate 40 is reduced; if the depth of the annular groove 411 is too shallow, the effect of preventing internal light leakage of the cover plate 40 is reduced, and the difficulty of engraving the annular groove 411 is increased.

[0129] See also Fig.17 and Fig.18 In some embodiments, the wearable device 100 further includes a middle frame 50 and a display screen 60. The middle frame 50 and the cover plate 40 enclose a receiving space (not shown) for receiving the detection module 10, the shading member 20, the focusing lens 30, etc. The display screen 60 is disposed on a side of the middle frame 50 away from the cover plate 40 and is carried by the middle frame 50. The side wall of the middle frame 50 is exposed to the display screen 60 and the cover plate 40. The display screen 60 is electrically connected to the processor 14 for displaying under the control of the processor 14. The memory 15 is also used to store the program code required to control the operation of the display screen 60, the display content of the display screen 60, etc.

[0130] Optionally, the display screen 60 may be, but is not limited to, one or more of a liquid crystal display screen, a light emitting diode display screen (LED display screen), a micro light emitting diode display screen (Micro LED display screen), a sub-millimeter light emitting diode display screen (Mini LED display screen), an organic light emitting diode display screen (OLED display screen), etc.

[0131] See also Fig.19 The wearable device 100 of the embodiment of the present application further includes: a wearing member 70, which is connected to the middle frame 50 and is used to wear the wearable device 100 on a target object (such as a wrist).

[0132] Optionally, the wearing piece 70 can be one or two. When the wearing piece 70 is one, the opposite ends of the wearing piece 70 are respectively connected to the opposite ends of the middle frame 50, so that the wearing piece 70 and the middle frame 50 enclose a wearing groove 71 to be mounted on the target object. When the wearing piece 70 is two, the two wearing pieces 70 are respectively connected to the opposite ends of the middle frame 50, and the ends of the two wearing pieces 70 away from the middle frame 50 are buckled, so that the wearing piece 70 and the middle frame 50 enclose a wearing groove 71 to be mounted on the target object.

[0133] For detailed description of the features that are the same between this embodiment and the above embodiment, please refer to the above embodiment, which will not be repeated here.

[0134] See also Fig. 20 , Fig.21 , and see again Figure 3 The embodiment of the present application further provides a detection device 200, the detection device 200 includes a detection module 10, the detection module 10 includes a first light-emitting group 11, a second light-emitting group 12 and a light-receiving group 13. The first light-emitting group 11 is used to emit a first light; the second light-emitting group 12 includes a plurality of light emitters 12a, the plurality of light emitters 12a surround the periphery of the first light-emitting group 11 and are arranged at intervals, and are used to emit a second light; the light-receiving group 13 includes a plurality of light receivers 13a, the plurality of light receivers 13a surround the periphery of the first light-emitting group 11 and are arranged at intervals, each of the light emitters 12a is arranged between two adjacent light receivers 13a, and the light receivers 13a are used to receive at least one of the first light and the second light.

[0135] The detection device 200 of the present application may be, but is not limited to, a blood oxygen monitor, a heart rate monitor, a pulse monitor, a mobile phone, a tablet computer, a laptop computer, an e-reader, a game console, or other electronic devices with health detection functions. It is understandable that the detection device 200 in the drawings of the present application is only one form of the detection device 200. In the drawings of the present application, the detection device 200 is illustrated by taking a smart watch as an example, which should not be understood as a limitation on the detection device 200 provided in the present application.

[0136] The detection device 200 of the present application can be used to detect life signals such as heart rate and blood oxygen of a living body. When the detection device 200 is used to detect life signals of a living body, the light emitting surfaces of the first light emitting group 11 and the second light emitting group 12 face the living body, and are used to emit the first light and the second light toward the living body, and the receiving surfaces of the multiple light receivers 13a all face the living body, and are used to receive the first light and the second light reflected back by the living body.

[0137] For a detailed description of the various technical features of the detection module 10, the first light, the second light, the light emitter 12a, the light receiver 13a, etc., please refer to the description of the corresponding parts of the above embodiments, which will not be repeated here.

[0138] The detection device 200 of the embodiment of the present application includes a detection module 10, and the detection module 10 includes a first light-emitting group 11, a second light-emitting group 12 and a light-receiving group 13. The first light-emitting group 11 is used to emit a first light; the second light-emitting group 12 includes a plurality of light emitters 12a, and the plurality of light emitters 12a surround the periphery of the first light-emitting group 11 and are arranged at intervals, and are used to emit a second light; the light-receiving group 13 includes a plurality of light receivers 13a, and the plurality of light receivers 13a surround the periphery of the first light-emitting group 11 and are arranged at intervals, each of the light emitters 12a is arranged between two adjacent light receivers 13a, and the light receivers 13a are used to receive the first light and the second light. In this way, the multiple light emitters 12a in the first light-emitting group 11 and the second light-emitting group 12 and the multiple light receivers 13a can form multiple channels at a shorter distance and multiple channels at a longer distance. When performing heart rate detection, the first light-emitting group 11 or multiple light emitters 12a that are closer to the light receiver 13a can be used to emit green light, thereby obtaining a better signal-to-noise ratio and improving the accuracy of heart rate measurement; when performing blood oxygen detection, multiple channels at a shorter distance and multiple channels at a longer distance can be coordinated, thereby improving the accuracy of blood oxygen detection while having a stronger signal strength.

[0139] See also Fig. 22 , and see again Figure 5 and Figure 6 In some embodiments, the plurality of light emitters 12a include a first light emitter 121 and a second light emitter 122; the plurality of light receivers 13a include a first light receiver 131 and a second light receiver 132; the detection device 200 further includes a shading member 20, the shading member 20 is disposed on one side of the detection module 10, the shading member 20 includes: a first shading portion 21, the first shading portion 21 has a first through hole 211, the first through hole 211 is used to set the first light-emitting group 11, and the first shading portion 21 is located between the first light-emitting group 11 and the light receiving group 13; And a second shading portion 22, the head and tail ends of the second shading portion 22 are spaced apart and respectively connected to the first shading portion 21 and enclose a second through hole 221 with the first shading portion 21, the second through hole 221 is used to set the first light emitter 121 and the first light receiver 131; the second light emitter 122 is set on the side of the first shading portion 21 away from the second shading portion 22, and is set on the side of the first light-emitting group 11 away from the first light emitter 121; the second light receiver 132 is set on one side of the shading member 20, and is set adjacent to the second light emitter 122.

[0140] For detailed descriptions of other aspects such as the detection module 10, the shading member 20, the first shading portion 21, the second shading portion 22, the first light emitter 121, the second light emitter 122, the first light receiver 131, the second light receiver 132, etc., please refer to the description of the corresponding parts of the above embodiments, and no further details will be given here.

[0141] In this embodiment, a shading member 20 is provided, the shading member 20 includes a first shading portion 21 and a second shading portion 22, the first light-emitting group 11 is provided in the first through hole 211 of the first shading portion 21, and a plurality of light receivers 13a are provided around the outer periphery of the first shading portion 21, so that the first shading portion 21 can prevent the first light emitted by the first light-emitting group 11 from entering the plurality of light receivers 13a without being reflected by the living body; in addition, the first light emitter 121 of the second light-emitting group 12 is provided in the second through hole 221 enclosed by the first shading portion 21 and the second shading portion 22, and the first light emitter 121 of the second light-emitting group 12 The second light emitter 122 is arranged on the side of the first shading portion 21 away from the second shading portion 22 and on the side of the first light-emitting group 11 away from the first light emitter 121, so that the second shading portion can block the second light emitted by the first light emitter 121 from directly entering the second light receiver 132 without being reflected by the living body, and the second shading portion can also prevent the second light emitted by the second light emitter 122 from directly entering the first light receiver 131 without being reflected by the living body; therefore, by setting the shielding member, the signal-to-noise ratio of the detection module 10 can be improved, and the accuracy of the detection module 10 in detecting life signals can be improved.

[0142] In some embodiments, when the first light emitter 121 is turned on, the second light emitter 122 and the first light receiver 131 are turned off, and the second light receiver 132 receives the second light emitted by the first light emitter 121; when the second light emitter 122 is turned on, the first light emitter 121 and the second light receiver 132 are turned off, and the first light receiver 131 receives the second light emitted by the second light emitter 122.

[0143] In this embodiment, when the first light emitter 121 or the second light emitter 122 is turned on and working, the second light receiver 132 or the first light receiver 131 arranged opposite to the first light emitter 121 or the second light emitter 122 is used to receive the second light. In this way, the distance between the working light emitter 12a and the light receiver 13a can be increased, and the perfusion degree of blood oxygen detection (also known as blood perfusion index, Perfusion Index, abbreviated as PI) can be improved, thereby improving the accuracy of blood oxygen detection.

[0144] See also Fig.23Optionally, the detection module 10 also includes a processor 14, which is electrically connected to the first light-emitting group 11, the second light-emitting group 12 and the light-receiving group 13, respectively, and the processor 14 is used to control the first light-emitting group 11 to emit the first light and control the second light-emitting group 12 to emit the second light, and control the light-receiving group 13 to receive at least one of the first light and the second light, and detect a life signal based on at least one of the first light and the second light received by the light-receiving group 13.

[0145] Optionally, the detection module 10 further includes a memory 15 , which is electrically connected to the processor 14 and is used to store program codes required for the processor 14 to run, program codes required for controlling the light emitter 12 a and the light receiver 13 a to work, and the like.

[0146] For detailed description of other aspects of the processor 14 and the memory 15 , please refer to the description of the corresponding parts of the above embodiments, which will not be repeated here.

[0147] See also Fig.24 , and see again Fig. 9 In some embodiments, the detection device 200 also includes a focusing lens 30, which is arranged on one side of the detection module 10, and is used to converge the first light emitted by the first light-emitting group 11 and the second light emitted by the second light-emitting group 12; the focusing lens 30 includes a lens body 31, and the lens body 31 has a first window 311, a second window 312 and a third window 313, the second window 312 and the third window 313 are spaced apart on both sides of the first window 311, the first window 311 covers the first light-emitting group 11, the second window 312 covers part of the multiple light emitters 12a and part of the multiple light receivers 13a, and the third window 313 covers another part of the multiple light emitters 12a and another part of the multiple light receivers 13a.

[0148] For detailed description of other aspects of the focusing lens 30 , please refer to the description of the corresponding parts of the above embodiments, which will not be repeated here.

[0149] Please see again Fig.16 and Fig. 22In some embodiments, the detection device 200 further includes a cover plate 40, which is disposed on a side of the condensing lens 30 away from the detection module 10, and the cover plate 40 includes a cover body 41 and a third photoresist layer 42, the cover body 41 having an annular groove 411 located on a surface facing the condensing lens 30, and the annular groove 411 is disposed around the periphery of the first window 311 at the orthographic projection of the surface of the condensing lens 30 facing the cover plate 40; the third photoresist layer 42 covers the bottom wall and side walls of the annular groove 411.

[0150] For detailed description of other aspects of the cover plate 40 , please refer to the description of the corresponding parts of the above embodiment, which will not be repeated here.

[0151] Mentioning "embodiment" and "implementation method" in this application means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of phrases in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments. In addition, it should also be understood that the features, structures or characteristics described in the various embodiments of the present application can be arbitrarily combined to form another embodiment that does not deviate from the spirit and scope of the technical solution of the present application, if there is no contradiction between them.

[0152] Finally, it should be noted that the above implementation modes are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the above preferred implementation modes, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A wearable device, characterized in that: The wearable device includes a detection module, and the detection module includes: A first light emitting group, used for emitting a first light; a second light-emitting group, the second light-emitting group comprising a plurality of light emitters, the plurality of light emitters surrounding the periphery of the first light-emitting group and arranged at intervals, and configured to emit a second light; and A light receiving group, the light receiving group includes a plurality of light receivers, the plurality of light receivers surround the periphery of the first light emitting group and are arranged at intervals, each of the light emitters is arranged between two adjacent light receivers, and the light receivers are used to receive at least one of the first light and the second light.

2. The wearable device according to claim 1, characterized in that: The plurality of light emitters include a first light emitter and a second light emitter; the plurality of light receivers include a first light receiver and a second light receiver; the wearable device further includes a shading member, the shading member is disposed on one side of the detection module, and the shading member includes: a first light shielding portion, wherein the first light shielding portion has a first through hole, the first through hole is used to set the first light-emitting group, and the first light shielding portion is located between the first light-emitting group and the light-receiving group; and A second light shielding portion, wherein both ends of the second light shielding portion are spaced apart and respectively connected to the first light shielding portion and enclosed with the first light shielding portion to form a second through hole, wherein the second through hole is used to arrange the first light emitter and the first light receiver; The second light emitter is disposed on a side of the first light shielding portion away from the second light shielding portion, and is disposed on a side of the first light emitting group away from the first light emitter; The second light receiver is disposed on one side of the light shielding element and is adjacent to the second light emitter.

3. The wearable device according to claim 2, characterized in that: When the first light emitter is turned on, the second light emitter and the first light receiver are turned off, and the second light receiver receives the second light emitted by the first light emitter; When the second light emitter is turned on, the first light emitter and the second light receiver are turned off, and the first light receiver receives the second light emitted by the second light emitter.

4. The wearable device according to claim 2, characterized in that: The number of the first light receivers is two, and the two first light receivers are spaced apart on both sides of the first light emitter and are arranged closer to the second light receiver than the first light emitter; the number of the second light receivers is two, and the two second light receivers are spaced apart on both sides of the second light emitter and are arranged closer to the first light receiver than the second light emitter; one of the two first light receivers is arranged opposite to one of the two second light receivers, and the other of the two first light receivers is arranged opposite to the other of the two second light receivers.

5. The wearable device according to claim 4, characterized in that: The first light emitting group includes two first light emitters and two second light emitters, the two first light emitters are arranged between the oppositely arranged first light receiver and second light receiver, and the two second light emitters are respectively arranged on the opposite sides of the two second light emitters and between another oppositely arranged first light receiver and second light receiver.

6. The wearable device according to claim 5, characterized in that: The first light emitter includes a red light, an infrared light and a green light, and two green lights of the first light emitters are arranged opposite to each other.

7. The wearable device according to claim 1, characterized in that: The wearable device further comprises: A condenser lens is arranged on one side of the detection module, and is used for converging the first light emitted by the first light-emitting group and the second light emitted by the second light-emitting group; the condenser lens includes a lens body, and the lens body has a first window, a second window and a third window, the second window and the third window are arranged at two sides of the first window at intervals, the first window covers the first light-emitting group, the second window covers part of the multiple light emitters and part of the multiple light receivers, and the third window covers another part of the multiple light emitters and another part of the multiple light receivers.

8. The wearable device according to claim 7, characterized in that: The lens body also has two first through grooves, which extend around the periphery of the first window and are arranged at intervals, and one of the two first through grooves is arranged between the first window and the second window, and the other of the two second through grooves is arranged between the first window and the third window; the focusing lens also includes a first light blocking layer, which covers the side walls of the two first through grooves and is used to reduce light crosstalk between the first window and the second window, and between the first window and the third window.

9. The wearable device according to claim 8, characterized in that: The lens body also has two second through grooves, which are spaced apart on opposite sides of the first window and are both located between the second window and the third window. The second through groove is spaced apart from the first through groove. The focusing lens also includes a second photoblocking layer, which covers the side walls of the two second through grooves.

10. The wearable device according to claim 9, characterized in that: The line width w1 of the first through groove is in the range of 0.2mm≤w1≤0.6mm, and the spacing d1 between two adjacent first through grooves is in the range of 1.0mm≤d1≤1.6mm; the line width w2 of the second through groove is in the range of 0.2mm≤w2≤0.6mm; the spacing d2 between the first through groove and the second through groove is in the range of 0.7mm≤d2≤1.2mm.

11. The wearable device according to any one of claims 7 to 10, characterized in that: The wearable device further includes a cover plate, which is disposed on a side of the condenser lens away from the detection module, and the cover plate includes: A cover body, wherein the cover body has an annular groove located on a surface facing the condenser lens, wherein the annular groove is arranged around the outer periphery of the first viewing window at an orthographic projection of a surface of the condenser lens facing the cover plate; and A third photoresist layer covers the bottom wall and the side wall of the annular groove.

12. The wearable device according to claim 11, characterized in that: The line width w3 of the annular groove is in the range of 0.4 mm ≤ w3 ≤ 0.6 mm; the depth h of the annular groove is in the range of 0.2 mm ≤ h ≤ 0.3 mm.

13. The wearable device according to claim 1, characterized in that: The detection module also includes a processor, which is electrically connected to the first light-emitting group, the second light-emitting group and the light-receiving group, respectively. The processor is used to control the first light-emitting group to emit the first light and control the second light-emitting group to emit the second light, and control the light-receiving group to receive the first light and the second light, and detect life signals based on the first light and the second light received by the light-receiving group.

14. A detection device, characterized in that: The detection device comprises a detection module, and the detection module comprises: A first light emitting group, used for emitting a first light; a second light-emitting group, the second light-emitting group comprising a plurality of light emitters, the plurality of light emitters surrounding the periphery of the first light-emitting group and arranged at intervals, and configured to emit a second light; and A light receiving group, the light receiving group includes a plurality of light receivers, the plurality of light receivers surround the periphery of the first light emitting group and are arranged at intervals, each of the light emitters is arranged between two adjacent light receivers, and the light receivers are used to receive at least one of the first light and the second light.

15. The detection device according to claim 14, characterized in that: The plurality of light emitters include a first light emitter and a second light emitter; the plurality of light receivers include a first light receiver and a second light receiver; the detection device further includes a light shielding member, the light shielding member is disposed on one side of the detection module, and the light shielding member includes: a first light shielding portion, wherein the first light shielding portion has a first through hole, the first through hole is used to set the first light-emitting group, and the first light shielding portion is located between the first light-emitting group and the light-receiving group; and A second light shielding portion, wherein both ends of the second light shielding portion are spaced apart and respectively connected to the first light shielding portion and enclosed with the first light shielding portion to form a second through hole, wherein the second through hole is used to arrange the first light emitter and the first light receiver; The second light emitter is disposed on a side of the first light shielding portion away from the second light shielding portion, and is disposed on a side of the first light emitting group away from the first light emitter; The second light receiver is disposed on one side of the light shielding element and is adjacent to the second light emitter.

16. The detection device according to claim 15, characterized in that: When the first light emitter is turned on, the second light emitter and the first light receiver are turned off, and the second light receiver receives the second light emitted by the first light emitter; When the second light emitter is turned on, the first light emitter and the second light receiver are turned off, and the first light receiver receives the second light emitted by the second light emitter.

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